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Sample records for sono kako gijutsu

  1. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium research and development of energy in its 1st year (Research and development of technologies for development and manufacture of magnesium alloys for cast and forged automotive parts); 1999 nendo jidosha muke chutanko buhin magnesium gokin no kaihatsu oyobi sono kako gijutsu no kenkyu kaihatsu seika hokokusho. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The research and development efforts aim to use more magnesium alloys of high performance aboard passenger cars. In the research and development of magnesium alloys for die-casting, studies are conducted about 14 kinds of alloys with their heat treatment properties improved, all based on an Mg-9%Zn-4.5%Al-0.6%Ca alloy which is expected to be excellent in resistance to heat and corrosion. In the development of forging-oriented high-strength magnesium alloys to be excellent in withstanding a hot working process, tractive characteristics superior to those of a forged 6061 aluminum material are obtained from an annealed ZK31 alloy. In the development of a high-performance heat-resistant magnesium alloy die-casting technology, it is found that an injection speed higher than that used for the existing alloys is necessary to achieve a product quality which is sound. This is true for all heat-resistant alloys except the ZAC series. Furthermore, technologies are developed which involve the forging of high-performance magnesium alloys, high-precision high-speed wet cutting, surface reforming of the environmentally friendly type, laser beam welding, etc. (NEDO)

  2. Practical applications of superconducting technology; Chodendo gijutsu to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Hoshino, M.; Yamamoto, K.; Urata, M. [Toshiba Corp., Tokyo (Japan)

    1995-11-01

    Remarkable progress has been made in superconducting technology recently. This paper describes the details and technical features of every cooling type of practical superconducting magnet (SCM), including the SCM for magnetic resonance imaging (MRI), SCM for semiconductor pulling devices, high-field SCM, SCM for magnetically confined plasma devices, and SCM for particle detectors. Commercial production of pool-boil-cooled SCMs has been realized by reducing helium evaporation and decreasing the frequency of helium pouring. The development of forced-cooled SCMs has made it possible to build large SCMs. Moreover, the development of the 4 K-GM refrigerator has enabled liquid-helium-free SCMs to be introduced. Since this type of SCM can be operated merely by turning on a switch, SCMs are expected to come into more widespread use. 7 refs., 1 fig.

  3. Kako razumeti mentorsko razmerje in njegove posledice

    Directory of Open Access Journals (Sweden)

    Dušana Findeisen

    2012-05-01

    Full Text Available Avtorica po uvodnem razmišljanju o tem, kako težko je konceptualizirati mentoriranje, proces, ki ima številne razsežno-sti (poučevanje, svetovanje, spremljanje, navduševanje, prijateljevanje ipd., obravnava mentorsko razmerje (izobra- ževanje in komunikacijski odnos, kakršnega srečamo v diadah mentorja in mentoriranca. V mentorskem razmerju sta dva akterja, mentor in mentoriranec, razen njiju pa je navzoč tudi »izključeni tretji partner«, denimo tovarna, podjetje, izobraževalna organizacija ipd., ki razmerju prispeva svoj organizacijski princip. Avtorica preučuje transformiranje mentorja, mentoriranca in družbenega okolja ter proces prenašanja znanja, pri tem pa poudari, da gre v mentorskem razmerju predvsem za skupno ustvarjanje novega znanja in delovanje, ki je gonilna sila učenja. V mentorskem razmerju dveh gre za komunikacijo in recipročnost v učenju, za prenos znanja, najpogosteje z neformalnim izobraževalnim programom. Gre pa seveda tudi za mentorski odnos. Mentorsko razmerje ima več faz, opozarja avtorica. Nekatere med njimi so bolj interaktivne in takrat je več recipročnosti, imamo pa tudi več kognitivne disonance in večje bogastvo čustev.

  4. Laser materials processing as manufacturing technology; Seisan gijutsu to shite no laser kako

    Energy Technology Data Exchange (ETDEWEB)

    Miyamoto, I. [Osaka University, Osaka (Japan)

    1998-11-01

    This paper describes the laser material processing. Laser is artificial light that uses the amplification based on the induced emission of light. It is very excellent in directivity and monochromaticity. The high power density and concentration characteristics of laser enable a variety of high-performance processing such as junction, removal, reforming, and addition. Excellent controllability (that facilitates the automated processing), transmission performance (the processing by energy transmission in long range space is most suitable for laser), and non-contact processing (that contains no wearing, noise, and contamination) are great advantages that the existing processing method does not have. In the wide wavelength area between ultraviolet and infrared areas, the laser that can be used for material processing is very wide over the range of the continuous oscillation to the ultra short pulse of a nanosecond order. The thermal processing accompanied by melting and evaporation as well as the non-thermal processing (quantum processing) by a photochemical reaction is also available as the type of processing. The processing used for manufacturing technology is almost thermal processing including removal, junction, reforming, and addition. The thermal processing covers the range of electronics to heavy industry. 29 refs., 12 figs., 2 tabs.

  5. Sono-catalytic degradation of organic compounds

    International Nuclear Information System (INIS)

    Navarro, N.

    2012-01-01

    Unlike aqueous effluents from the PUREX process, aqueous effluents from advanced separation processes developed to separate the minor actinides (Am, Cm) contain organic reagents in large amounts. To minimize the impact of these organic compounds on the next steps of the process, and to respect standard discharges, it is necessary to develop new techniques of degradation of organic compounds. Sono-chemistry appears as a very promising solution to eliminate organic species in aqueous nuclear effluents. Indeed, the propagation of an ultrasonic wave in a liquid medium induces the appearance of cavitation bubbles which will quickly grow and implode, causing local conditions and extreme temperatures and pressures. Each cavitation bubble can then be considered as a microreactor at high temperature and high pressure able to destroy organic molecules without the addition of specific reagents. The first studies on the effect of ultrasonic frequency on sono-luminescence and sono-lysis of formic acid have shown that the degradation of formic acid occurs at the bubble/liquid interface. The most striking difference between low-frequency and high-frequency ultrasound is that the sono-lysis of HCOOH at high ultrasonic frequencies initiates secondary reactions not observed at 20 kHz. However, despite a much higher sono-chemical activity at high frequency, highly concentrated carboxylic acids in the aqueous effluents from advanced separation processes cannot be destroyed by ultrasound alone. To increase the efficiency of sono-chemical reactions, the addition of supported platinum catalysts has been studied. In these conditions, an increase of the kinetics of destruction of carboxylic acids such as oxalic acid is observed. (author) [fr

  6. Modeling of SONOS Memory Cell Erase Cycle

    Science.gov (United States)

    Phillips, Thomas A.; MacLeod, Todd C.; Ho, Fat H.

    2011-01-01

    Utilization of Silicon-Oxide-Nitride-Oxide-Silicon (SONOS) nonvolatile semiconductor memories as a flash memory has many advantages. These electrically erasable programmable read-only memories (EEPROMs) utilize low programming voltages, have a high erase/write cycle lifetime, are radiation hardened, and are compatible with high-density scaled CMOS for low power, portable electronics. In this paper, the SONOS memory cell erase cycle was investigated using a nonquasi-static (NQS) MOSFET model. Comparisons were made between the model predictions and experimental data.

  7. Funkcionalna nepismenost in kako jo rešujejo Francozi

    Directory of Open Access Journals (Sweden)

    Dušana Findeisen

    1998-12-01

    Full Text Available Dušana Findeisen piše o funkcionalni pismenosti in razpravlja o tem, kako je težko opredeljiva. Tako pravi, da se moramo zadovoljiti zgolj s tem, da opišemo značilne oblike te osebne in družbene disfunkcije, ki se spreminja s kulturnim okoljem in trenutkom družbenega razvoja. Ko omenja verbalnost, pove, da se funkcionalno nepismen človek tudi jezikovno in miselno oplaja le v svojem ozkem okolju in zato ni čudno, da se širših socialnih okolij boji. Izobraževanje in organizacija na tem področju sta povsem odvisna od ljudi, ki jih izobražujemo, in od tistih, ki so voljni takšno izobraževanje ponuditii. Tudi slednje je treba neprestano izobraževati, bodisi da gre za zaposlene strokovnjake, bodisi za prostovoljce. Vendarle pa to še ne pomeni, da jim lahko kar koli predpisujemo, jih kakor koli omejujemo ali nadzorujemo. Lahko jih zgolj spoštujemo. Podobno kot v Franciji pa bi bila potrebna politična volja na državni in lokalni ravni, da bi se dorekli mehanizmi izvajanja politike preprečevanja in zdravljenja tega velikega družbenega zla.

  8. FY 1998 achievement report on the photon measuring/processing technology (R and D of the photon measuring/processing technology); 1998 nendo foton keisoku kako gijutsu seika hokokusho. Foton keisoku kako gijutsu no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In this project, the survey/arrangement were made of the trend of the recent technology such as photon (laser) measuring/processing/generation and a possibility of adopting the photon technology to the field except measuring/processing, to clarify technical subjects for establishing/commercializing the photon technology. Also for the purpose of reducing the energy cost by improving the performance of laser processing device, prolonging the life and reducing the operational cost, the development of the following were carried out: (1) high efficiency laser processing device. (2) high conversion efficiency laser diode. In (1), a laser generating device with Yb:YAG crystal as oscillating medium was trially manufactured, and the power of 35W and optical-optical conversion efficiency of 7.1% were obtained. A comparison was also made between Yb:YAG laser and Nd:YAG laser, and made it clear that as the industrial use high power laser, Nd:YAG laser has the advantage over the other. In (2), the development was made of technology for simultaneous uniform growth of more than one LD crystal wafers with high conversion efficiency and technology for evaluation. Namely, the high uniformity crystal wafer with variations among wafers of {+-}4% was obtained using the introduced high efficiency crystal growth device and high efficiency thin film evaluation device. (NEDO)

  9. Biophysical Evaluation of SonoSteam®:

    DEFF Research Database (Denmark)

    Andersen, Ann Zahle; Duelund, Lars; Brewer, Jonathan R.

    and safety evaluations. Our results show that there are no contradictions between data obtained by either approach. However, the biophysical methods draw a much more nuanced picture of the effects and efficiency of the investigated decontamination method, revealing e.g. an exponential dose/response...... relationship between SonoSteam treatment time and changes in collagen I, and a depth dependency in bacterial reduction, which points toward CFU counts overestimating total bacterial reduction. In conclusion the biophysical methods provide a less biased, reproducible and highly detailed system description...

  10. Development of three-dimensional pipe bending technology; Pipe zai no sanjigen mage kako gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Takeuchi, K; Takeda, S [Aisin Seiki Co. Ltd., Aichi (Japan)

    1997-10-01

    Recently, automotive parts uses move resin products or pipe-like products in order to achieve high quality or light weight. Additionally, the shape of automotive parts becomes more complicated. The rotary stretch bending method, although it is most popular method of bending a pipe, has some problems, such as a bending radius is limited due to use of bending mold, a thickness of an outer side of a bending portion is thinner, and a product is scratched easily during manufacturing. We have developed a three dimensional pipe bending process using a floating expanding plug and confirmed that this method can solve the above problems. 2 refs., 9 figs., 3 tabs.

  11. FY 2000 research cooperation project on plastic processing technology/quality inspection technology; 2000 nendo kenkyu kyoryoku jigyo. Plastic kako gijutsu hinshitsukensa gijutsu ni kansuru kenkyu kyoryoku

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of improving the production technology of plastic products in Saudi Arabia, the joint development was made of the formation technology/quality inspection technology of agricultural use and food packaging use polyolefin film optimum to environmental conditions of the site, in the light of the needs there, and the FY 2000 results were reported. In the field survey/joint study, for the xenon type weather resistant testing machine and the extruder of the inflation film forming machine which were transported from Japan, the following were carried out: confirmation of the situation of accepting them on the site, functional test of computer of the extruder, installation of the machine testing weather resistance, and the trial operation. In the domestic support study, the extrusion test at laboratory was conducted using the polyethylene resin produced on the site to acquire the basic data for formation stability. Further, the film formation test was made using the equipment with the same specifications as those of the equipment introduced to the site to study the performance of screw extrusion and the formation stability of film. Also conducted were the analytical test/quality evaluation of resin materials/film. (NEDO)

  12. Qualidade do sono em pacientes fibromiálgicos

    Directory of Open Access Journals (Sweden)

    Florinda Freire Moro

    2014-03-01

    Full Text Available Objetivo: Analisar a qualidade do sono em paciente fibromiálgicos, identificando seus principais hábitos noturnos e verificando os possíveis fatores que influenciam na qualidade do sono. Métodos: Pesquisa observacional, transversal, de caráter quantitativo, realizada em ambulatório de fisioterapia no período março a abril de 2012. Participaram 24 pacientes fibromiálgicos, independente do sexo e idade. Aplicou-se um questionário baseado no Pittsburgh Sleep Quality Index (PSQI para avaliar a qualidade e hábitos noturnos. As informações foram analisadas através de estatística descritiva. Resultados: Em relação à latência do sono, apenas 1 (4,2% leva para dormir um tempo menor ou igual a 15 min e 19 (79,2% apontaram dificuldade de “não adormecer em até 30 min” por mais de 3 vezes por semana. O componente “sentir dor” e o “acordar no meio da noite” tiveram maiores influências no distúrbio do sono destes pacientes. Quanto à duração do sono, 7 (29,2% dormem menos que 5 horas. Sobre a eficiência do sono, 12 (50,0% possuíam uma eficiência do sono superior a 85%, 10 (41,7% possuíam eficiência do sono entre 75-84% e apenas 2 (8,33% eficiência de 65-74%. Quanto ao uso de medicação para dormir, 12 (50% não usaram durante o mês e 12 (50% usavam entre 3 ou mais vezes durante a semana. Conclusão: Os pacientes com fibromialgia no presente estudo apresentaram um declínio na qualidade e eficiência do sono, sendo influenciados pela latência e duração do sono, presença de dor e despertar noturno. doi: 10.5020/18061230.2014.p72

  13. Qualidade do sono em pacientes fibromiálgicos

    Directory of Open Access Journals (Sweden)

    Florinda Freire Moro

    2014-03-01

    Full Text Available Objetivo: Analisar a qualidade do sono em paciente fibromiálgicos, identificando seus principais hábitos noturnos e verificando os possíveis fatores que influenciam na qualidade do sono. Métodos: Pesquisa observacional, transversal, de caráter quantitativo, realizada em ambulatório de fisioterapia no período março a abril de 2012. Participaram 24 pacientes fibromiálgicos, independente do sexo e idade. Aplicou-se um questionário baseado no Pittsburgh Sleep Quality Index (PSQI para avaliar a qualidade e hábitos noturnos. As informações foram analisadas através de estatística descritiva. Resultados: Em relação à latência do sono, apenas 1 (4,2% leva para dormir um tempo menor ou igual a 15 min e 19 (79,2% apontaram dificuldade de “não adormecer em até 30 min” por mais de 3 vezes por semana. O componente “sentir dor” e o “acordar no meio da noite” tiveram maiores influências no distúrbio do sono destes pacientes. Quanto à duração do sono, 7 (29,2% dormem menos que 5 horas. Sobre a eficiência do sono, 12 (50,0% possuíam uma eficiência do sono superior a 85%, 10 (41,7% possuíam eficiência do sono entre 75-84% e apenas 2 (8,33% eficiência de 65-74%. Quanto ao uso de medicação para dormir, 12 (50% não usaram durante o mês e 12 (50% usavam entre 3 ou mais vezes durante a semana. Conclusão: Os pacientes com fibromialgia no presente estudo apresentaram um declínio na qualidade e eficiência do sono, sendo influenciados pela latência e duração do sono, presença de dor e despertar noturno.

  14. QUALIDADE DO SONO, CRONOTIPO E DESEMPENHO EM CORREDORES DE RUA

    Directory of Open Access Journals (Sweden)

    Igor Cruz

    Full Text Available RESUMO Introdução: O exercício físico gera resultados positivos para a qualidade do sono e atua no ciclo sono-vigília por meio de seu efeito sincronizador indireto do relógio biológico. Objetivo: Avaliar a qualidade de sono, o cronotipo e o desempenho de corredores amadores de rua da cidade de Limeira. Métodos: Foram avaliados 42 indivíduos de ambos os sexos (28 ± 1,47 anos, que praticavam corrida de rua. O instrumento utilizado para aplicação dos questionários foi a plataforma Google Drive - Google Forms. Foram formuladas questões que englobam o cotidiano de um corredor de rua e também questionários para avaliação do cronotipo, sonolência e qualidade do sono. Resultados: Os resultados demonstraram que o cronotipo mais frequente foi o matutino (47,61%, seguido por intermediário (30,95% e vespertino (21,42%. A frequência de corridas foi 88% no período da manhã, 9% no período da noite e 4% período da tarde. Com relação à qualidade de sono geral foi verificado que 59% dos corredores tinham má qualidade de sono. Ao analisar as variáveis de sono e sonolência em decorrência do horário da última corrida realizada, verificou-se que as pessoas que correram no período da tarde tiveram pior qualidade do sono e os que correram à noite tiveram índices de sonolência. Não se encontrou diferença no desempenho das corridas de 5 km entre matutinos e vespertinos; no entanto, constatou-se fraca associação entre o tempo da última corrida e a pontuação do cronotipo, demonstrando que os matutinos realizavam as provas em menor tempo. Conclusão: Assim, podemos sugerir que o cronotipo e o padrão de sono podem interferir no desempenho e, dessa forma, devem ser levados em conta durante os treinamentos.

  15. Qualidade do sono entre professores e fatores associados

    OpenAIRE

    Denise Andrade Pereira Meier

    2016-01-01

    O sono desempenha função notável na prevenção de doenças, manutenção e recuperação da saúde física e mental. Como processo reparador, sofre influências de fatores determinantes e condicionantes, que o tornam complexo e multifacetado. As condições adversas de trabalho enfrentadas por professores podem prejudicar sua qualidade de vida e, consequentemente, seu padrão de sono. Este estudo objetivou analisar a qualidade do sono e fatores associados em professores da educação básica. Trata-se de um...

  16. Síndrome de apneia-hipopneia obstrutiva do sono

    OpenAIRE

    Carvalho, Vanessa Mafalda Araújo

    2008-01-01

    A Síndrome de Apneia/Hipopneia Obstrutiva do Sono apresenta actualmente uma elevada prevalência entre a população adulta, assim como diversas complicações inerentes a esta que aumentam a morbilidade e mortalidade dos pacientes que padecem desta patologia. Esta síndrome caracteriza-se pelo repetido estreitamento ou colapso das vias aéreas superiores durante o sono. A obstrução é causada pelo colapso do palato mole e/ou da base da língua contra as paredes faríngeas devido à diminuição do tónus ...

  17. Qualidade do sono e tolerância ao esforço em portadores de apneia obstrutiva do sono

    Directory of Open Access Journals (Sweden)

    Aliny Priscilla do Nascimento

    2014-04-01

    Full Text Available INTRODUÇÃO: O sono é um estado natural e recorrente, no qual acontecem processos neurobiológicos importantes. A má qualidade do sono está diretamente associada com piores indicadores de saúde. A qualidade do sono pode ser medida objetiva e subjetivamente por métodos como a polissonografia, que é o padrão de referência, ou por meio de testes e questionários, como o índice de qualidade de sono de Pittsburgh (IQSP. OBJETIVO: Correlacionar a qualidade do sono com a tolerância ao esforço em pacientes portadores da síndrome da apneia/hipopneia obstrutiva do sono (SAHOS. MÉTODOS: Participaram do estudo 63 indivíduos (57 mulheres e seis homens, média de idade de 51,7 ± 6,6 anos; índice de massa corpórea (IMC média de 28,2 ± 5,0 kg/m2; índice de apneia/hipopneia (IAH médio de 7,3 ± 10,50 eventos/hora, verificado através da polissonografia. Para a avaliação da qualidade do sono, os participantes responderam ao IQSP, e para a avaliação da tolerância ao esforço, realizaram o teste de caminhada de 6 minutos (TC6M. RESULTADOS: Não houve correlação entre o IQSP e o TC6M (Rs = -0,103620, p = 0,419, assim como entre o IAH e o TC6M (Rs = -0, 000984, p = 0,9939. Podemos sugerir que a qualidade do sono e a gravidade da SAHOS não afetam a tolerância ao esforço dos indivíduos com SAHOS. CONCLUSÃO: Estudos com uma amostra maior, levando-se em consideração a estratificação pela gravidade da SAHOS e utilizando métodos mais acurados de avaliação da capacidade funcional, devem ser realizados, a fim de que resultados mais abrangentes possam ser obtidos.

  18. Fatores que interferem na qualidade do sono de pacientes internados

    Directory of Open Access Journals (Sweden)

    Shíntia Viana da Costa

    2013-02-01

    Full Text Available Este estudo objetivou identificar fatores que interferem na qualidade do sono de pacientes internados em hospital universitário do interior de São Paulo. Trata-se de estudo exploratório, de corte transversal, com amostragem não probabilística. Participaram 117 pacientes (59% homens, idade média de 48 anos, desvio padrão 16,9 internados há pelo menos 72 horas, em condições clínicas estáveis. Os instrumentos utilizados foram: questionário de identificação e Fatores Intervenientes na Qualidade do Sono (FIQS. O tratamento dos dados foi feito com estatística descritiva e cada item do FIQS foi submetido a teste e reteste. Os fatores apontados com maior frequência foram: acordar cedo (55,6%, sono interrompido (52,1%, iluminação excessiva (34,2%, recebimento de cuidados pela equipe de enfermagem (33,3% e distúrbios orgânicos como dor e fadiga (26,5%. Sugere-se que os enfermeiros planejem intervenções buscando modificar fatores que propiciam ruídos e iluminação intensos à noite, visando reduzir interrupções e, consequentemente, a privação de sono.

  19. Comparison of Fenton and sono-Fenton bisphenol A degradation

    International Nuclear Information System (INIS)

    Ioan, Iordache; Wilson, Steven; Lundanes, Elsa; Neculai, Aelenei

    2007-01-01

    Degradation of bisphenol A (BPA) was carried out with the Fenton reagent with and without additional sonochemical treatment. The Fenton and the sono-Fenton decomposition of BPA showed that ultrasound irradiation of wastewater improved the wet oxidation process of 25 mg l -1 BPA solutions. The sonochemical degradation of BPA was monitored using UV absorption and large volume injection packed capillary LC measurements

  20. Fiscal 1996 comprehensive report on R and D on advanced chemical processing technology; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu sokatsu hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu / sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    R and D was conducted on technology for composite thin film formation such as laser MOCVD, for thin film lamination, and for synthesis reaction and characterization in compounded fields where temperature/pressure/magnetic field/electrical field, etc., are compounded, for the purpose of creating materials with functions newly added or reinforced by regulating compositions and structures through atomic/molecular orders. The R and D was conducted on 24 themes, which were rearranged into four categories. Examples of the themes are as follows; development of super hard permanent magnets by crystallization process control of Nd-Fe-B amorphous alloys, as for structural control technology; research on high functional thin film sensors (PbLaTiO{sub 3}) using laser MOCVD, and research on ultra thin film by multi-ion-beam sputtering with ion/photo irradiation, as for thin film technology; R and D on highly ordered structure control technology in electrode surface compounded reaction fields, as for compounded fields; and, research on diagnostic technique for compounded reaction fields by laser-ionization method, as for supporting technologies. (NEDO)

  1. Violência durante o sono Violent behavior during sleep

    Directory of Open Access Journals (Sweden)

    Dalva Poyares

    2005-05-01

    Full Text Available Casos de comportamento violento (CV durante o sono são relatados na literatura. A incidência de comportamento violento durante o sono não é muito conhecida. Um estudo epidemiológico mostra que cerca de 2% da população geral apresentava comportamento violento dormindo e eram predominantemente homens. Neste artigo, os autores descrevem aspectos clínicos e médico-legais envolvidos na investigação do comportamento violento. O comportamento violento se refere a ferimentos auto-infligidos ou infligidos a um terceiro durante o sono. Ocorre, muito freqüentemente, seguindo um despertar parcial no contexto de um transtorno de despertar (parassonias. Os transtornos do sono predominantes diagnosticados são: transtorno de comportamento REM e sonambulismo. O comportamento violento poderia ser precipitado pelo estresse, uso de álcool e drogas, privação do sono ou febre.Cases of violent behavior during sleep have been reported in the literature. However, the incidence of violent behavior during sleep is not known. One epidemiological study showed that approximately 2% of the general population, predominantly males, presented violent behavior while asleep. In the present study, the authors describe clinical and medico-legal aspects involved in violent behavior investigation. Violent behavior refers to self-injury or injury to another during sleep. It happens most frequently following partial awakening in the context of arousal disorders (parasomnias. The most frequently diagnosed sleep disorders are REM behavior disorder and somnambulism. Violent behavior might be precipitated by stress, use of alcohol or drugs, sleep deprivation or fever.

  2. Sono-chemiluminescence from a single cavitation bubble in water

    International Nuclear Information System (INIS)

    Brotchie, Adam; Shchukin, Dmitry; Moehwald, Helmuth; Schneider, Julia; Pflieger, Rachel

    2012-01-01

    In summary, this study has revealed the conditions required for a single bubble to be sono-chemically active. Evidence of radical-induced processes surrounding the bubble was only observed below the SL threshold, where the bubble was not spatially stable, and did not correlate with emission from excited molecular states inside the bubble. Moreover, this work substantiates recent progress that has been made in bridging the gap between single and multi-bubble cavitation. (authors)

  3. SONOS memories with embedded silicon nanocrystals in nitride

    International Nuclear Information System (INIS)

    Liu, Mei-Chun; Chiang, Tsung-Yu; Chao, Tien-Sheng; Kuo, Po-Yi; Lei, Tan-Fu; Chou, Ming-Hong; Wu, Yi-Hong; Cheng, Ching-Hwa; Liu, Sheng-Hsien; Yang, Wen-Luh; You, Hsin-Chiang

    2008-01-01

    We have successfully demonstrated SONOS memories with embedded Si-NCs in silicon nitride. This new structure exhibits excellent characteristics in terms of larger memory windows and longer retention time compared to control devices. Using the same thickness 2.5 nm of the bottom tunneling oxide, we found that N 2 O is better than O 2 oxide. Retention property is improved when the thickness of N 2 O is increased to 3.0 nm

  4. Identificação de hábitos de sono, compreensão do sono e rotinas de sono em crianças de idade escolar : estudo com crianças e pais

    OpenAIRE

    Guimarães, Ana Cristina

    2013-01-01

    Tese de mestrado, Psicologia (Secção de Psicologia Clínica da Saúde - Núcleo de Psicologia Clínica da Saúde e da Doença), Universidade de Lisboa, Faculdade de Psicologia, 2013 O sono é um fenómeno universal de grande importância para o desenvolvimento infantil. A qualidade do sono é determinada por vários factores, entre eles as rotinas de sono. É assim importante estudar as rotinas de forma a aumentar o conhecimento sobre este determinante. Apesar da criança ter um papel importan...

  5. Fiscal 1997 research report on the R and D project under a consignment from NEDO. Photonics engineering (R and D of photonics measuring/processing technology); 1997 nendo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Photon keisoku kako gijutsu (photon keisoku kako gijutsu no kenkyu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Survey was made on the trend of R and D on photonics engineering to clarify the direction of its impact and ripple effect on industrial fields. Reduction of environment burden, improvement of the productivity and reliability of products, and creation of new industries by novel creative R and D are necessary simultaneously. For reconsideration of the previous measurement and machining technologies in a manufacturing industry, use of photon (laser) beams is promising. As photonics engineering, photonics measurement and machining, and elemental and peripheral technologies for generation and control of photon were surveyed. Photonics application technologies for medical care and diagnosis, communication and transmission, entertainment, and chemical fields were also surveyed. In fiscal 1997 as the first year of this project, based on the results obtained in leading researches conducted until fiscal 1996, some technological issues were clarified through the survey on the latest trend of photonics engineering in measurement, machining and generation fields, and its feasibility in the other fields. 265 refs., 91 figs., 10 tabs.

  6. Report on the results of the fiscal 1997 R and D under consignment from NEDO of photon measuring/processing technology (R and D of petroleum production system high-grade measuring/processing technology); 1997 nendo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku photon keisoku kako gijutsu (sekiyu seisan system kodo keisoku kako gijutsu kenkyu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The R and D were conducted of high-strength and high-accuracy welding/joining technology using laser, technology to measure and assess the joining state of structures and defects around the surface of structures and inside structures by high accuracy and high resolution, and technology/equipment to generate a laser light source for the tool, which are all required to remarkably enhance safety/reliability of oil drilling facilities working in the severe environment. In fiscal 1997, as the R and D of oil production system high-grade measuring/processing technology, technical study, study of measures to be taken, operating experiment, assessment, examination, etc. were conducted on the following themes: 1) macroscopic processing technology (R and D of high-reliability laser welding technology), 2) non-destructive composition measuring technology (R and D of internal measurement and photoelectron spectroscopy using short-wavelength radiation), 3) tight-focusing all-solid-state laser technology (R and D of fiber laser), 4) tight-focusing all-solid-state laser technology (R and D of high-efficiency laser diode), and 5) comprehensive investigation of phonics engineering (investigation for photon-applied materials processing technology). 256 refs., 205 figs., 18 tabs.

  7. Wind energy technology : from the past to the future; 20 seiki ni okeru furyoku riyo gijutsu no henkan. Furyoku hatsuden : kako kara mirai e

    Energy Technology Data Exchange (ETDEWEB)

    Ushiyama, I. [Ashikaga Institute of Technology, Tochigi (Japan)

    2000-01-20

    Windmills are one of the oldest prime movers and have been used for more than 700 years in Europe. The transition from low speed windmills for grain grinding and water pumping to high speed wind turbines for electric power generation had occurred at first, reviews the windmill technologies and the researchers before 20{sup th} century. Then describes the back ground of how the wind power generator has existed and how the four pioneers developed their wind power generator. The historical developments of windmills to wind turbines in this century are studied focusing mainly on Danish activities. Then, the effort of the development of large wind turbine such as Smith-Putnum's first MW machine in U.S.A. and other mammoth machine concept are introduced. The new concept machines such as Savonius and Darrieus wind turbines in 1920s to 1930s are also explained. Finally, the novel technologies of wind turbine covering larger machines, variable speed generators, special wing sections for wind turbines, theoretical analysis method of wind turbine performance, offshore wind turbines, and wind turbine control technologies are stated. (author)

  8. Report on achievements in fiscal 1999. Research and development of advanced function creating and processing technologies; 1990 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    In order to provide materials with superior advanced functions such as high-level biological compatibility, external environment identifying function, chemical reaction activating function, high-performance electromagnetic properties, and corrosion and heat resistant high strength properties, it is intended to establish novel material creating technologies using chemical processing processes that can control finely the compositions and constructions of the materials. The efforts include (1) works on research and development of an ultra-high purity separating technology composed mainly of laser selection and excitation actions for manifestation of new natures such as sensing function, catalytic function, and electromagnetic properties, (2) works on research and development of a micro-fine crystal controlling technology capable of designing materials, such as micro-fine particle synthesizing, dispersing and compounding technologies, micro thin film lamination, and interface controlling technologies to create materials having high strength as well as high tenacity, and (3) works on research and development of high-function organic material synthesizing technologies compounding the utilization of high-grade photons with application of extreme environmental fields such as ferromagnetic fields whose effects are expected on controlling structure like orientation of atomic and molecular levels for the purpose of creating high-function materials having high heat resistance, corrosion resistance, and lubrication performance. (NEDO)

  9. Frontier of nanometer devices. Part 2. Trends in nanostructure fabrication technology. Nanometa debaisu kenkyu saizensen. 2. Nanometa bisai kako gijutsu no genjo to tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Matsui, S [NEC Corp., Tokyo (Japan)

    1994-06-20

    Nanometer fabrication technology shows a remarkable progress. Conventional electric beam enables 10 nm lithography and the scanning transmission electron microscopy (STEM) and the scanning tunneling microscopy (STM) enable fabrication below 10 nm even to the level of atom and molecule manipulation. This paper describes the recent trends in nanotechnology (nanolithography and nano dry etching) by the use of electron and ion beams. In the atom technology by the use of STM, studies are in progress on processing with atomic force, electric field evaporation and chemical reaction. Moreover, this paper describes recent development in nano natural lithography, self-formation lithography, atomic layer lithography and nanolithography using electron beam holography. The present state and future prospects are discussed. 31 refs., 10 figs., 1 tab.

  10. Perfil cardiovascular em pacientes com apneia obstrutiva do sono

    Directory of Open Access Journals (Sweden)

    Fátima Dumas Cintra

    2011-04-01

    Full Text Available FUNDAMENTO: Apneia Obstrutiva do Sono (AOS é um fator de risco para várias condições cardiovasculares incluindo aumento na mortalidade cardiovascular. Sendo assim, é essencial o conhecimento das principais repercussões cardiovasculares dos distúrbios respiratórios do sono durante uma avaliação clínica. OBJETIVO: Analisar as características cardiovasculares de pacientes com AOS. MÉTODOS: Pacientes submetidos a polissonografia basal foram consecutivamente selecionados do banco de dados do Instituto do Sono entre março de 2007 e março de 2009. Todos os pacientes foram orientados a comparecer ao ambulatório para coleta de sangue, exame físico, eletrocardiograma de 12 derivações, espirometria, teste cardiopulmonar em esteira ergométrica e ecocardiograma transtorácico. O estudo foi aprovado pelo comitê de ética e pesquisa e registrado no site http://clinicaltrials.gov/ sob o número: NCT00768625. RESULTADOS: Foram analisados 261 pacientes e 108 controles. As principais características dos pacientes com AOS foram: obesidade, hipertensão, baixos níveis plasmáticos de lipoproteínas de alta densidade (HDL e aumento no diâmetro do átrio esquerdo quando comparados com controles (3,75 ± 0,42; 3,61 ± 0,41, p = 0,001, respectivamente. Essas características associadas correspondem a um acréscimo de 16,6 vezes na probabilidade de ocorrência de AOS independentemente do relato de algum sintoma dessa desordem, como sonolência ou ronco. CONCLUSÃO: Na amostra avaliada, o perfil cardiovascular dos pacientes com AOS mais encontrado foi: obesidade, hipertensão arterial, baixos níveis plasmáticos de HDL e átrio esquerdo com diâmetro aumentado.

  11. Effects of tunnel oxide process on SONOS flash memory characteristics

    International Nuclear Information System (INIS)

    Li, Dong Hua; Park, Il Han; Yun, Jang-Gn; Park, Byung-Gook

    2010-01-01

    In this paper, various process conditions of tunnel oxides are applied in SONOS flash memory to investigate their effects on charge transport during the program/erase operations. We focus the key point of analysis on Fermi-level (E F ) variation at the interface of silicon substrate and tunnel oxide. The Si-O chemical bonding information which describes the interface oxidation states at the Si/SiO 2 is obtained by the core-level X-ray photoelectron spectroscopy (XPS). Moreover, relative E F position is determined by measuring the Si 2p energy shift from XPS spectrums. Experimental results from memory characteristic measurement show that MTO tunnel oxide structure exhibits faster erase speed, and larger memory window during P/E cycle compared to FTO and RTO tunnel oxide structures. Finally, we examine long-term charge retention characteristic and find that the memory windows of all the capacitors remain wider than 2 V after 10 5 s.

  12. High performance milling techniques on molding dies. Development of new roughing techniques for large molding die; Plastic kanagata seisaku ni okeru kokoritsu kako gijutsu. Ogata plastic yo kanagata no keijo arakako gijutsu no kochiku

    Energy Technology Data Exchange (ETDEWEB)

    Otsuka, H; Kohama, S; Yamakawa, M [Mazda Motor Corp., Hiroshima (Japan); Egusa, H [Mazda Tooling and Engineering Co. Inc., Hiroshima (Japan)

    1997-10-01

    It needs long time to carve a molding die of bumper, which has a large and deep cavity. To shorten the milling time, we must make the machining more performable and accurate, and develop the new technology of CAM. In the milling sequence, Primary Roughing, which cut out 90% of the stock, should be more and more performable. So we established Tilt-Plunging and Curve-Fit Spiral Cutting techniques. These techniques will reduce lateral force to the tool, and make remains more small. With the techniques, we reduced both machining and NCdata preparing time to one half. 1 ref., 14 figs.

  13. NEDO Forum 2001. Session on industrial technology development (Future of thing making and manufacturing/processing technologies); NEDO Forum 2001. Sangyo gijutsu kaihatsu session (monozukuri seisan kako gijutsu no mirai)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-09-20

    The presentations made at the above-named session of the NEDO (New Energy and Industrial Technology Development Organization) forum held in Tokyo on September 20, 2001, are collected in this report. In a lecture entitled 'History of thing making,' the roles played by the now-defunct National Testing Laboratory and Industrial Test and Research Center were described and strategy for future development was predicted. In a lecture entitled 'Thing making and international apprentices competition,' apprenticeship training in practice at Denso Systems Corporation was presented. In a lecture entitled 'Key technology in thing making: outlook of metal mold industry,' shift in Japanese manufacturers' paradigm and change in metal mold marketing were explained, and the importance of reaching for the first position in the world in some specific fields or of expanding the scope of work in the entire value chain was stressed. In a lecture entitled 'Digital meister project: Aiming at amalgamation of IT (information technology) and MT (manufacturing technology),' database construction in the manufacture of metal molds, introduction of knowledge management systems, and development of CAD/CAM/CAE (computer-aided design/computer-aided manufacturing/computer-aided engineering) were discussed. (NEDO)

  14. Fiscal 1999 research report. Research on photonic measurement and processing technology (Development of high- efficiency production process technology); 1999 nendo foton keisoku kako gijutsu seika hokokusho. Kokoritsu seisan process gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 research result on R and D of laser processing technology, in-situ measurement technology, and generation and control technology of photon as laser beam source, for energy saving and efficiency improvement of energy-consumptive production processes such as welding, jointing, surface treatment and fine particle fabrication. The research was carried out by a technical center, 9 companies and a university as contract research. The research themes are as follows: (1) Processing technology: simulation technology for laser welding phenomena, synthesis technology for quantum dot functional structures, and fabrication technology for functional composite materials, (2) In-situ measurement technology: fine particle element and size measurement technology, (3) All- solid state laser technology: efficient rod type LD-pumping laser module, pumping chamber of slab type laser, improvement of E/O efficiency of laser diode, high-quality nonlinear crystal growth technology, fabrication technology for nonlinear crystals, and high-efficiency harmonic generation technology. Comprehensive survey was also made on high- efficiency photon generation technologies. (NEDO)

  15. FY 1998 annual summary report on photon measuring/processing techniques. Development of highly functional maintenance techniques for power generating facilities; 1998 nendo foton keisoku kako gijutsu. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to develop the techniques for non-destructive measurement of conditions of facility portions, especially those exposed to severe environments, e.g., elevated temperature and pressure, over a wide range; the techniques for measurement of leakage of, e.g., gases, at high sensitivity; the techniques of laser-aided welding and surface-modification treatment for the members exposed to severe conditions; and the techniques for generating photon beams of high quality and energy density as the tools therefor, in order to improve reliability and maintenance efficiency of power generating facilities. The R and D themes are microscopic processing technology: fabrication technology for functional micro-composite circuits; in-situ status measuring technology: gas concentration/component measurement technology, and photon wavefront compensation device technology; non-destructive composition measuring technology: high-sensitivity detection technology using short-wavelength photons; high-power all-solid-state laser technology: rod-type laser and slab-type laser; tightly-focusing all-solid-state laser technology: high-energy pulse, high-quality laser; and comprehensive investigation of photonics engineering: investigation for photon-applied measurement technologies. (NEDO)

  16. Fiscal 1999 research report. Research on photonic measurement and processing technology (Development of advanced maintenance technology for power plant facilities); 1999 nendo foton keisoku kako gijutsu seika hokokusho. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    This report summarizes the fiscal 1999 research result on R and D of measurement technology, laser welding and surface treatment technology, and generation technology of photon beam, for improvement of the quality and maintenance efficiency for power plant facilities. In the study on fabrication of functional micro-composite circuits, the equipment for forming circuits on substrates by carrying particles with gas was developed whose geometric standard deviation is 1.17 for 26nm particles. In the study on gas concentration measurement technology, development of the variable-wavelength laser beam source for measurement, fabrication of thin films by epitaxial growth equipment, and computer simulation of sensitivities for quantum IR photo- detectors were promoted. In the study on photon wavefront compensation device technology, the technology for fabricating such device with (411)A surface orientations and asymmetric quantum well structures was developed. In the study on high-sensitivity detection technology using short- wavelength photon, to develop a high-energy resolution fluorescent X-ray detector, favorable electric properties of superconducting X-ray detecting devices were confirmed at nearly 0.1K. (NEDO)

  17. FY 1998 annual summary report on photon measuring/processing techniques. Development of the techniques for high-efficiency production processes; 1998 nendo foton keisoku kako gijutsu seika hokokusho. Kokoritsu seisan process gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to develop the techniques for energy-efficient laser-aided processing; techniques for high-precision, real-time measurement to improve quality control for production processes and increase their efficiency; and the techniques for generating/controlling photon of high efficiency and quality as the laser beam sources therefor, in order to promote energy saving at and improve efficiency of production processes consuming large quantities of energy, e.g., welding, joining, surface treatment and production of fine particles. The R and D themes are microscopic processing technology: simulation technology for laser welding phenomena; microscopic processing technology: synthesis of technology for quantum dot functional structures; in-situ status measuring technology: fine particle elements and size measurement technology; high-power all-solid-state laser technology: efficient rod type LD-pumping laser modules and pumping chamber of a slab-type laser; tightly-focusing all-solid-state laser technology: improvement of E/O efficiency of laser diode, high-quality nonlinear crystal growth technology and fabrication technology for nonlinear crystal; and comprehensive investigation of photonics engineering: high-efficiency harmonic generation technology. (NEDO)

  18. Padrões de sono de estudantes ingressantes na Graduação em Enfermagem

    OpenAIRE

    Furlani, Renata; Ceolim, Maria Filomena

    2005-01-01

    Trata-se de estudo exploratório e descritivo com o objetivo de identificar os padrões de sono de estudantes ingressantes na graduação. Desenvolvido na Universidade Estadual de Campinas SP, os dados foram coletados em dois momentos distintos por meio do Índice de Qualidade de Sono de Pittsburgh. Durante as férias, os estudantes apresentaram melhor qualidade/ duração de sono e adoção de horários mais condizentes com seu cronotipo. Após o início das aulas, maior número apresentou sono de má qual...

  19. Effect of ultrasonic frequency on the mechanism of formic acid sono-lysis

    International Nuclear Information System (INIS)

    Chave, T.; Nikitenko, S.I.; Navarro, N.M.; Pochon, P.; Bisel, I.

    2011-01-01

    The kinetics and mechanism of formic acid sono-chemical degradation were studied at ultrasonic frequencies of 20, 200, and 607 kHz under argon atmosphere. Total yield of HCOOH sono-chemical degradation increases approximately 6-8-fold when the frequency increased from 20 to 200 or to 607 kHz. At low ultrasonic frequencies, HCOOH degradation has been attributed to oxidation with OH . radicals from water sono-lysis and to the HCOOH decarboxylation occurring at the cavitation bubble-liquid interface. With high-frequency ultrasound, the sono-chemical reaction is also influenced by HCOOH dehydration. Whatever the ultrasonic frequency, the sono-lysis of HCOOH yielded H 2 and CO 2 in the gas phase as well as trace, amounts of oxalic acid and formaldehyde in the liquid phase. However, CO and CH 4 formations were only detected under high frequency ultrasound. The most striking difference between low frequency and high frequency ultrasound is that the sono-lysis of HCOOH at high ultrasonic frequencies initiates Fischer-Tropsch hydrogenation of carbon monoxide. (authors)

  20. Research report for fiscal 1998. Development of advanced surface processing technology for methane-fueled aircraft engine members (Laser-aided advanced processing system technology); 1998 nendo chosa hokokusho. Methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu (Laser oyo senshin kako system gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the research and development of erosion-resistant abradable materials for the methane-fueled aircraft engine front section, a laser-aided surface reform technology was developed for Ti alloys and the like. In relation with the article 'Intermetallic Compound Coating Formation Technology,' an NiTi sprayed coating containing excess Ni solid solution was found to be quite high in resistance to erosion, and similar to Ti-6Al-4V in resistance to oxidation at 300 degrees C. Furthermore, an MCrAlY erosion-resistant coating was formed capable of resisting oxidation at temperatures higher than 1000 degrees C. In relation with the article 'Spraying Phenomenon Evaluation Technology,' studies were made of combustion synthesis reaction during plasma spraying and of the prediction of flight trajectories of different powders, for which optical fiber dichroic temperature measuring, 2-dimensional imaging, and LDV (laser Doppler velocimetry) were applied in combination. Concerning the spraying of intermetallic compound coatings, a temperature rise occurred when heating by laser was performed simultaneously with the laser-induced combustion synthesis reaction. In relation with the article 'Technology of Multiple Spraying on Curved Substrate,' it was found that the gas cooled method works effectively when spraying an erosion-resistant coating onto a thin Ti alloy made turbine blade. (NEDO)

  1. FY 2000 report on the results of the research and development project for the photon-aided instrumentation and processing technologies. Research and development of the advanced instrumentation and processing technologies for oil production systems; 2000 nendo photon keisoku kako gijutsu seika hokokusho. Sekiyu seisan system kodo keisoku kako gijutsu kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Described herein are the FY 2000 results of development of the photon-aided instrumentation and processing technologies, as part of development of the advanced instrumentation and processing technologies for oil production systems. The program for the microscopic processing technology combines iodine and YAG laser beams as the high-power laser beams of wavelength of the order of 1{mu}m, in order to realize laser-aided welding of high-quality thick plates, the welding demonstration tests producing good results; improves an in-process monitoring sensor, to confirm its high reliability; and improves size controllability for ultrafine semiconductor particles for development of quantum functional optoelectronic devices, and extends the electric conductivity for production of the transparent conducting films. The program for the non-destructive composition measuring technology develops a light source which produces short wavelength ray of sufficient brightness; produces three-dimensional CT images with a resolution of 2{mu}m, and is developing superconducting X-ray detectors. The program for the high-power all-solid-state laser technology starts development of a rod-type oscillation-controlling laser which can provide mixed operations of CW, pulsed and Q-switched oscillation modes at an average power of 1kW level. The program for the tightly-focusing all-solid-state laser technology develops the prototype of disk type fiber laser using silica fibers of rectangular cross-section, which produces a power of 103W, and starts development of a laser diode. (NEDO)

  2. FY 1992 Survey report of the technologies for creating/processing advanced biomaterials. Research and development of the technologies for creating/processing advanced biomaterials (Comprehensive survey and research); 1992 nendo senshin bio zairyo no sosei kako gijutsu chosa hokokusho. Senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu (sogo chosa kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    This project is aimed at development of the materials which show functions in a living body by coating a substrate of, e.g., silica or glass, with layered novel peptide synthesized to include unusual amino acid required to have the functions. The existing peptide-related technologies are reviewed and the natural peptide list is prepared. A total of 15 literature is surveyed, and the contents are pigeonholed into 8 items; (1) prospects of peptide engineering, (2) designs of peptide structures, (3) technologies of peptide synthesis, (4) synthesis of unusual amino acid and inclusion into peptide, (5) analysis of peptide structures, (6) physiological activity of peptide, (7) development of peptide materials and function manifestation, and (8) information retrieval of natural peptide (comprising 30 amino acids or less). The item (2) involves analysis and prediction of hydrophobicity of oligopeptide, item (3) chemical synthesis of protein, and protease-aided condensation of dipeptide, item (6) peptide having activity with plant, and item (7) solar cells based on a photoelectric conversion material and pigment-sensitized colloidal titanium oxide. (NEDO)

  3. Achievement report for fiscal 1998. Photon-aided measuring and processing technologies (Research and development of advanced measuring and processing technologies for oil production system); 1998 nendo foton keisoku kako gijutsu seika hokokusho. Sekiyu seisan system kodo keisoku kako gijutsu kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Research and development was conducted of photon-aided measuring and processing technologies and of the technology of generating photons, all these usable in oil digging. In the research and development of high-reliability laser welding technology, it was found that reflection from the keyhole served as an indicator betraying instability if any in laser welding, and this enabled the establishment of a method for observing defects in welded sections. In the research and development of technologies for measuring internal transmission of short-wavelength radiation and for photoelectron spectroscopy, a high-efficiency continuous generation of hard X-rays was noticed in the former while, in the latter, the soft X-ray source in a light source was evaluated. In addition, a photoelectron flight tube was fabricated, and evaluated. In the research and development of fiber laser, a fiber structure type was decided to be used, and fiber laser was successfully oscillated for the first time in the world. In the research and development of high-performance laser diodes, a laser diode device was fabricated as the first step in this effort. A discussion was made about a high-efficiency combination of heat sink materials, lamination and assembly system, and fibers, which was for achieving higher performance. (NEDO)

  4. FY 2000 report on the results of the research and development project for the photon-aided instrumentation and processing technologies. R and D of the photon-aided instrumentation and processing technologies; 2000 nendo photon keisoku kako gijutsu seika hokokusho. Photon keisoku kako gijutsu no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Described herein are the FY 2000 results of development of the photon-aided instrumentation and processing technologies. The technological and R and D trends of the photon-aided instrumentation and processing technologies are surveyed, in order to clarify the directions of their impacts and ripple effects on creation of new industries and development of the existing industries. The survey committee is organized, for exchanging opinions and information, and collection of information. For the trends of the photon-aided processing technologies, information on the elementary and peripheral technologies is collected by literature survey and academic meetings for processing, applied instrumentation and analysis, and photon generation/controlling, to grasp, analyze and study the latest trends. For the photon-utilizing technologies, information is collected viewed from their application to wide industrial areas, e.g., medical, diagnostic, communication/transmission, multimedia and chemical areas, other than those for instrumentation and processing. Also surveyed and analyzed/studied are the technologies for environmental protection, sensing, information, and the new areas, e.g., terahertz photonics and agriculture. (NEDO)

  5. FY 1999 Report on research and development results of photon-applied instrumentation/processing technologies. Research and development of advanced measuring/processing technologies for oil production systems; 1999 nendo foton keisoku kako gijutsu seika hokokusho. Sekiyu seisan system kodo keisoku kako gijutsu kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Described herein are the FY 1999 results of the research and development of photon (laser) beam utilization as part of the R and D project of the advanced measuring/processing technologies for oil production systems. For the high-reliability laser welding technology, the tests are conducted for welding 15 mm thick steel plates and 5 mm thick aluminum alloy plates by synthesized iodine/YAG laser beams, producing high-quality welding results. For the microscopic processing technology, attempts have been made for development of quantum functional optoelectronic devices which have nanometer-sized ultrafine dots. For the non-destructive composition measuring technology, the internal transmission measurement program produces the target light quantity by increasing brightness of the short-wavelength light source. The three-dimensional digital tomography (DT) images with a space resolution of several micrometers are obtained. For the tightly-focusing all-solid-state laser technology, a fiber-structured fiber laser is developed, on a trial basis, to attain a power of 15 W. A high-power, high-brightness laser diode, required for exciting the fiber laser is developed, and a power of 30 W or more is obtained by an InGa(As)P device. The comprehensive investigation results are also presented. (NEDO)

  6. FY 1999 report on the results of the research and development project for the photon-aided instrumentation and processing technologies. R and D of the photon-aided instrumentation and processing technologies; 1999 nendo photon keisoku kako gijutsu seika hokokusho. Photon keisoku kako gijutsu no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Described herein are the FY 1999 results of development of the photon-aided instrumentation and processing technologies. The photon technologies will be widely applicable to various industrial areas, e.g., medical, diagnostic, communication, transmission and chemical areas, in addition to instrumentation and processing, and the FY 1999 project is directed to the survey and analysis of the information, and prediction of their effects. The high-sensitivity light-receiving elements enlarged up to 5mm diameter (effective area) are developed, based on the technologies to grow the thin films using an MOVPE (metal-organic vapor-phase epitaxy) device and the results of development of the infrared ray-receiving InGaAs photodiode sensitive in a 2.5 to 2.7{mu}m wavelength range. The surface roughness of 0.4nmRMS is achieved by the bowl feed liquid polishing method, to develop the processing technologies for high-precision substrates for optical mirrors. The results are used to develop the prototype X-ray mirrors with surface accuracy of {lambda}/10 to {lambda}/20 and roughness of 0.3 to 0.5nmRMS. In the development of the technologies for the light sources which can sufficiently supply photons for exciting semiconductor lasers, the technologies are developed to efficiently converge the laser beams. Also developed are the apparatus which can converge the beams to a diameter of around 0.6mm, and the apparatus which uses optical fibers to evaluate the beam diameter. (NEDO)

  7. Qualidade do sono em portadores do vírus da imunodeficiência humana

    Directory of Open Access Journals (Sweden)

    Luciana Tiemi Kuranishi Ferreira

    2012-08-01

    Full Text Available Este estudo teve por objetivo caracterizar a qualidade do sono de pessoas com o vírus da imunodeficiência humana (HIV - AIDS - , com ou sem manifestações clínicas e sob tratamento ambulatorial. Para tal, foi realizada pesquisa descritiva e transversal. Os instrumentos utilizados foram: Questionário de Caracterização Sociodemográfica e Clínica; Índice de Qualidade de Sono de Pittsburgh (PSQI-BR. Participaram da pesquisa 122 pacientes (55,7% de homens e 44,3% de mulheres, com idade média de 42,3 (± 8,9 anos, dos quais 53,3% referiram apresentar sono de boa qualidade e 46,7%, sono de má qualidade. Dormiam, em média, 7,3 (± 1,8 horas, com latência de 23,2 (± 26,2 minutos e eficiência do sono de 87,8% (± 14,4. Observou-se associação significativa entre o sono de boa qualidade e os seguintes fatores: ter companheiro(a; apresentar carga viral indetectável; manter comportamento de risco. Recomenda-se que os profissionais de enfermagem incluam sistematicamente questões sobre o sono ao avaliarem o paciente com HIV/AIDS, detectando alterações precocemente e reunindo subsídios para o planejamento de intervenções.

  8. Real-Time Measurements and Modelling on Dynamic Behaviour of SonoVue Bubbles Based on Light Scattering Technology

    International Nuclear Information System (INIS)

    Juan, Tu; Rongjue, Wei; Guan, J. F.; Matula, T. J.; Crum, L. A.

    2008-01-01

    The dynamic behaviour of SonoVue microbubbles, a new generation ultrasound contrast agent, is investigated in real time with light scattering method. Highly diluted SonoVue microbubbles are injected into a diluted gel made of xanthan gum and water. The responses of individual SonoVue bubbles to driven ultrasound pulses are measured. Both linear and nonlinear bubble oscillations are observed and the results suggest that SonoVue microbubbles can generate strong nonlinear responses. By fitting the experimental data of individual bubble responses with Sarkar's model, the shell coating parameter of the bubbles and dilatational viscosity is estimated to be 7.0 nm·s·Pa

  9. Advanced oxidation of Reactive Blue 181 solution: a comparison between Fenton and Sono-Fenton process.

    Science.gov (United States)

    Basturk, Emine; Karatas, Mustafa

    2014-09-01

    In this work, the decolorization of C.I. Reactive Blue 181 (RB181), an anthraquinone dye, by Ultrasound and Fe(2+) H2O2 processes was investigated. The effects of operating parameters, such as Fe(2+) dosage, H2O2 dosage, pH value, reaction time and temperature were examined. Process optimisation [pH, ferrous ion (Fe(2+)), hydrogen peroxide (H2O2), and reaction time], kinetic studies and their comparison were carried out for both of the processes. The Sono-Fenton process was performed by indirect sonication in an ultrasonic water bath, which was operated at a fixed 35-kHz frequency. The optimum conditions were determined as [Fe(2+)]=30 mg/L, [H2O2]=50 mg/L and pH=3 for the Fenton process and [Fe(2+)]=10 mg/L, [H2O2]=40 mg/L and pH=3 for the Sono-Fenton process. The colour removals were 88% and 93.5% by the Fenton and Sono-Fenton processes, respectively. The highest decolorization was achieved by the Sono-Fenton process because of the production of some oxidising agents as a result of sonication. The paper also discussed kinetic parameters. The decolorization kinetic of RB181 followed pseudo-second-order reaction (Fenton study) and Behnajady kinetics (Sono-Fenton study). Copyright © 2014 Elsevier B.V. All rights reserved.

  10. Estudo comparativo de padrões de sono em trabalhadores de enfermagem dos turnos diurno e noturno

    Directory of Open Access Journals (Sweden)

    Milva Maria Figueiredo de Martino

    2002-08-01

    Full Text Available Objetivo. Comparar os padrões de sono de enfermeiros dos turnos diurno e noturno em um hospital de Campinas (SP, Brasil. Métodos. Participaram 59 enfermeiros entre 23 e 59 anos. Para os enfermeiros do dia, analisou-se o sono noturno, e, para os da noite, os sonos diurno e noturno. Os informantes preencheram um diário do sono durante 1 semana, ao acordar. Foram analisados hora de ir deitar, de dormir, e de acordar; latência do sono; horas de sono noturno e diurno; cochilos; qualidade do sono; modo de acordar; e comparação do sono registrado no diário com o sono habitual. Também foram coletadas informações pessoais e profissionais. Resultados. O grupo diurno ia dormir às 23h36min e o grupo noturno, às 23h52min (P <=0,004, Wilcoxon. Os enfermeiros diurnos acordavam mais cedo (7h3min do que os noturnos quando dormiam à noite (8h30min. A latência média do sono foi de 23min26s para os enfermeiros diurnos contra 22min50s para os noturnos; a duração do sono noturno foi de 7h11min e 9h6min, respectivamente. O cochilo esteve presente apenas no grupo diurno (média de 2h3min. O sono diurno dos enfermeiros da noite foi caracterizado pelo fracionamento (dois períodos, tempo de sono de 4h7min e 2h38min. O sono noturno do grupo noturno foi de melhor qualidade. O tempo médio de trabalho em hospital foi de 14,31 anos no grupo diurno contra 7,07 no grupo noturno (P <=0,05, Wilcoxon. Os sujeitos possuíam hábitos saudáveis, principalmente quanto ao consumo de álcool. Verificou-se uso de anti-hipertensivos, diuréticos e analgésicos. Conclusões. Os achados foram semelhantes aos descritos anteriormente. Seria recomendável que os enfermeiros do turno da noite pudessem tirar cochilos para compensar o déficit de sono durante a atividade noturna.

  11. Síndrome da apneia e hipopneia obstrutiva do sono – SAHOS

    Directory of Open Access Journals (Sweden)

    Hélio Brasileiro

    2009-03-01

    Full Text Available A Síndrome da Apneia e Hipopneia Obstrutiva do Sono (SAHOS é caracterizada por episódios repetitivos de apneia e hipopneia durante o sono. Em artigos recentes, SAHOS severa (quando o número de apneia e hipopneia por hora de sono é maior que 30 é citada como fator de risco para doenças cardiovasculares e morte. Além disso, SAHOS é muito prevalente em pacientes com obesidade, diabetes e hipertensão arterial sistêmica, que também são fatores de risco para doença cardiovascular. A leptina e a grelina, dois hormônios reguladores do apetite, estão aumentadas em pacientes com SAHOS, segundo alguns artigos. Contudo, SAHOS é ainda uma doença subdiagnosticada.

  12. Sono e adolescência: quantas horas os adolescentes precisam dormir?

    Directory of Open Access Journals (Sweden)

    Érico Felden Pereira

    2015-03-01

    Full Text Available Objetivo Determinar a especificidade e a sensibilidade de uma medida para apontar o melhor ponto de corte para a duração de sono como preditor da sonolência diurna excessiva em adolescentes. Métodos Participaram do estudo 1.359 adolescentes, com idades de 14 a 21 anos, de duas cidades do sul do Brasil, que responderam a questionário de hábitos de sono e sonolência diurna. Utilizou-se a Receiver Operating Characteristic para estimar a capacidade preditiva da duração de sono para a sonolência diurna excessiva. Resultados A média de duração do sono para os adolescentes com sonolência diurna excessiva foi de 7,9 horas e para aqueles sem sonolência diurna excessiva foi de 8,33 horas (p < 0,001. A prevalência de sonolência diurna excessiva foi de 35,7%. Foi observada correlação significativa e negativa entre a duração do sono e as idades analisadas (p < 0,001. A análise de Receiver Operating Characteristic indicou duração mínima de 8,33 horas como proteção para a sonolência diurna excessiva. Conclusão Foi observada alta prevalência de sonolência diurna excessiva e propõe-se como possível duração de sono um mínimo de 8,33 horas nos dias com aula para que os adolescentes evitem esse desfecho.

  13. Fiscal 1996 survey report on overseas technology concerning R and D on advanced chemical processing technology; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu kaigai gijutsu chosa hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu / sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    R and D was conducted on technologies for ultra high purity separation/processing, ultra fine particle crystal control, and high functional organic material synthesis and support. The results were classified into four categories and, on the basis of the results, the researchers paid a visit to and had a conference with related organizations overseas, for the purpose of exchanging opinions with European and American specialists and extracting evaluation and problems of the results. On laser CVD/organic thin film technology, eight institutions including University College London were visited by the researchers, with opinions exchanged on eight subjects such as studies on synthesis of high functional metallic thin film using the laser MOCVD method. On new materials/processing technology, seven institutions including MIT were visited, with opinions exchanged on the results of four researches such as preparation of Pb-based ferroelectric thin film using multi-ion-beam sputtering method. On micro-structure characterization technology, six institutions including MIT were visited, with opinions exchanged on the results of nine studies such as micro-structure characterization by transmission electron microscopy. On ion CVD/ion implantation technology, five institutions including The University of Salford were visited, with opinions exchanged on the results of seven researches such as creation and utilization of ultra-high vacuum. (NEDO)

  14. Fiscal 1996 survey report on overseas technology concerning R and D on advanced chemical processing technology; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu kaigai gijutsu chosa hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu / sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    R and D was conducted on technologies for ultra high purity separation/processing, ultra fine particle crystal control, and high functional organic material synthesis and support. The results were classified into four categories and, on the basis of the results, the researchers paid a visit to and had a conference with related organizations overseas, for the purpose of exchanging opinions with European and American specialists and extracting evaluation and problems of the results. On laser CVD/organic thin film technology, eight institutions including University College London were visited by the researchers, with opinions exchanged on eight subjects such as studies on synthesis of high functional metallic thin film using the laser MOCVD method. On new materials/processing technology, seven institutions including MIT were visited, with opinions exchanged on the results of four researches such as preparation of Pb-based ferroelectric thin film using multi-ion-beam sputtering method. On micro-structure characterization technology, six institutions including MIT were visited, with opinions exchanged on the results of nine studies such as micro-structure characterization by transmission electron microscopy. On ion CVD/ion implantation technology, five institutions including The University of Salford were visited, with opinions exchanged on the results of seven researches such as creation and utilization of ultra-high vacuum. (NEDO)

  15. O plantão noturno em anestesia reduz a latência ao sono

    OpenAIRE

    Mathias, Lígia Andrade da Silva Telles; Coelho, Christina Morotomi Funatsu; Vilela, Elizabeth Pricoli; Vieira, Joaquim Edson; Pagnocca, Marcelo Lacava

    2004-01-01

    JUSTIFICATIVA E OBJETIVOS: Os médicos em geral, os anestesiologistas em particular, têm jornadas de trabalho prolongadas. Os residentes de Anestesiologia podem apresentar fadiga e estresse significativos. O objetivo deste trabalho foi verificar, em residentes de primeiro e segundo anos a latência do sono em períodos após plantão. MÉTODO: Foram avaliados 11 residentes em situações distintas: às 7 horas da manhã, após noite de sono normal (> 7h), sem plantão nos 3 dias anteriores (M1); às 7 hor...

  16. Sono e adolescência: quantas horas os adolescentes precisam dormir?

    OpenAIRE

    Pereira,Érico Felden; Barbosa,Diego Grasel; Andrade,Rubian Diego; Claumann,Gaia Salvador; Pelegrini,Andreia; Louzada,Fernando Mazzilli

    2015-01-01

    Objetivo Determinar a especificidade e a sensibilidade de uma medida para apontar o melhor ponto de corte para a duração de sono como preditor da sonolência diurna excessiva em adolescentes. Métodos Participaram do estudo 1.359 adolescentes, com idades de 14 a 21 anos, de duas cidades do sul do Brasil, que responderam a questionário de hábitos de sono e sonolência diurna. Utilizou-se a Receiver Operating Characteristic para estimar a capacidade preditiva da ...

  17. SONO-OXIDATIVE PRE-TREATMENT OF WASTE ACTIVATED SLUDGE BEFORE ANAEROBIC BIODEGRADATION

    Directory of Open Access Journals (Sweden)

    S. Şahinkaya

    Full Text Available Abstract The effects of sonication, potassium ferrate (K2FeO4 oxidation and their simultaneous combination (called "sono-oxidative pre-treatment" on chemical properties and anaerobic digestion of waste activated sludge (WAS were investigated and compared comprehensively. Based on chemical parameters, the optimum operating conditions were found to be 0.3 g K2FeO4/g total solids (TS dosage for 2-h individual K2FeO4 oxidation, 0.50 W/mL ultrasonic power density for 10-min individual sonication and, lastly, the combination of 2.5-min sonication at 0.75 W/mL ultrasonic power density with 2-h chemical oxidation at 0.3 g K2FeO4/g TS dosage for sono-oxidative pre-treatment. The disintegration efficiencies of these methods under the optimized conditions were in the following descending order: 37.8% for sono-oxidative pre-treatment > 26.3% for sonication > 13.1% for K2FeO4 oxidation. The influences of these methods on anaerobic biodegradability were tested with the biochemical methane potential assay. It was seen that the cumulative methane production increased by 9.2% in the K2FeO4 oxidation reactor, 15.8% in the sonicated reactor and 18.6% in the reactor with sono-oxidative pre-treatment, compared to the control (untreated reactor.

  18. Sono assisted electrocoagulation process for the removal of pollutant from pulp and paper industry effluent.

    Science.gov (United States)

    Asaithambi, P; Aziz, Abdul Raman Abdul; Sajjadi, Baharak; Daud, Wan Mohd Ashri Bin Wan

    2017-02-01

    In the present work, the efficiency of the sonication, electrocoagulation, and sono-electrocoagulation process for removal of pollutants from the industrial effluent of the pulp and paper industry was compared. The experimental results showed that the sono-electrocoagulation process yielded higher pollutant removal percentage compared to the sonication and electrocoagulation process alone. The effect of the operating parameters in the sono-electrocoagulation process such as electrolyte concentration (1-5 g/L), current density (1-5 A/dm 2 ), effluent pH (3-11), COD concentration (1500-6000 mg/L), inter-electrode distance (1-3 cm), and electrode combination (Fe and Al) on the color removal, COD removal, and power consumption were studied. The maximum color and COD removal percentages of 100 and 95 %, respectively, were obtained at the current density of 4 A/dm 2 , electrolyte concentration of 4 g/L, effluent pH of 7, COD concentration of 3000 mg/L, electrode combination of Fe/Fe, inter-electrode distance of 1 cm, and reaction time of 4 h, respectively. The color and COD removal percentages were analyzed by using an UV/Vis spectrophotometer and closed reflux method. The results showed that the sono-electrocoagulation process could be used as an efficient and environmental friendly technique for complete pollutant removal.

  19. Trabalho em turnos: estado geral de saúde relacionado ao sono em trabalhadores de enfermagem

    Directory of Open Access Journals (Sweden)

    Sandra Soares Mendes

    2012-12-01

    Full Text Available O objetivo deste estudo foi identificar os sintomas referentes ao estado geral de saúde associado ao trabalho em turnos de enfermagem e relacioná-los com a qualidade do sono. O estudo foi realizado no Hospital da Irmandade da Santa Casa de Poços de Caldas, Minas Gerais. Participaram 136 profissionais de enfermagem, com média de idade de 33,1 anos, divididos nas seguintes categorias: enfermeiro (8,1%; técnico de enfermagem (80,9%; auxiliar de enfermagem dos turnos diurno e noturno (11%. Os sintomas de saúde foram identificados a partir do Inventário de Estado Geral de Saúde, e a qualidade do sono foi avaliada pelo Diário do Sono. Os dados foram estatisticamente significativos pelo Teste Qui-Quadrado (p=0,021 para a presença do sintoma de flatulência ou distensão abdominal no turno noturno. Constatou-se com a análise de regressão linear múltipla que os sujeitos do turno diurno que apresentaram os sintomas de má digestão (às vezes ou sempre e irritabilidade (sempre tiveram pior qualidade de sono noturno.

  20. Failing arsenic mitigation technology in rural Bangladesh: explaining stagnation in niche formation of the Sono filter

    NARCIS (Netherlands)

    Kundu, D.K.; Mol, A.P.J.; Gupta, A.

    2016-01-01

    Arsenic contamination of shallow hand pump tube well drinking water in Bangladesh has created opportunities for radical innovations to emerge. One such innovation is the household Sono filter, designed to remove arsenic from water supplies. Applying a strategic niche management approach, and based

  1. Improvement in mechanical properties of hypereutectic Al-Si-Cu alloys through sono-solidiifed slurry

    Institute of Scientific and Technical Information of China (English)

    Yoshiki Tsunekawa; Shinpei Suetsugu; Masahiro Okumiya; Naoki Nishikawa; Yoshikazu Genma

    2014-01-01

    For the wider applications, it is necessary to improve the ductility as wel as the strength and wear-resistance of hypereutectic Al-Si-Cu aloys, which are typical light-weight wear-resistant materials. An increase in the amounts of primary silicon particles causes the modiifed wear-resistance of hypereutectic Al-Si-Cu aloys, but leads to the poor strength and ductility. It is known that dual phase steels composed of hetero-structure have succeeded in bringing contradictory mechanical properties of high strength and ductility concurrently. In order to apply the idea of hetero-structure to hypereutectic Al-Si-Cu alloys for the achievement of high strength and ductility along with wear resistance, ultrasonic irradiation of the molten metal during the solidiifcation, which is caled sono-solidiifcation, was carried out from its molten state to just above the eutectic temperature. The sono-solidiifed Al-17Si-4Cu aloy is composed of hetero-structure, which are, hard primary silicon particles, soft non-equilibriuma-Al phase and the eutectic region. Rheo-casting was performed at just above the eutectic temperature with sono-solidiifed slurry to shape a disk specimen. After the rheo-casting with modiifed sono-solidiifed slurry held for 45 s at 570 ºC, the quantitative optical microscope observation exhibits that the microstructure is composed of 18area% of hard primary silicon particles and 57area% of softa-Al phase. In contrast, there exist only 5 area% of primary silicon particles and noa-Al phase in rheo-cast specimen with normaly solidiifed slurry. Hence the tensile tests of T6 treated rheo-cast specimens with modified sono-solidified slurry exhibit improved strength and 5% of elongation, regardless of having more than 3 times higher amounts of primary silicon particles compared to that of rheo-cast specimen with normaly solidiifed slurry.

  2. A genética dos distúrbios do sono na infância e adolescência

    OpenAIRE

    Nunes,Magda Lahorgue; Bruni,Oliviero

    2008-01-01

    OBJETIVO: O objetivo deste artigo é revisar a literatura sobre a genética dos distúrbios do sono na infância e adolescência. FONTES DOS DADOS: As palavras-chave "sono" e "genética" foram usadas para pesquisar por artigos publicados nos últimos cinco anos no banco de dados MEDLINE. A seguir, seus resumos foram analisados. A pesquisa também incluiu artigos clássicos, com a primeira descrição dos genes. SÍNTESE DOS DADOS: A recorrência familiar de muitos distúrbios do sono é um achado freqüente,...

  3. Photo oxidative degradation of azure-B by sono-photo-Fenton and photo-Fenton reagents

    Directory of Open Access Journals (Sweden)

    Prahlad Vaishnave

    2014-12-01

    Full Text Available A model for the decomposition of azure-B by photo-Fenton reagent in the presence of ultrasound in homogeneous aqueous solution has been described. The photochemical decomposition rate of azure-B is markedly increased in the presence of ultrasound. It is a rather inexpensive reagent for wastewater treatment. The effect of different variables like the concentration of ferric ion, concentration of dye, hydrogen peroxide, pH, light intensity etc. on the reaction rate has been observed. The progress of the sono-photochemical degradation was monitored spectrophotometrically. The optimum sono-photochemical degradation conditions were experimentally determined. The results showed that the dye was completely oxidized and degraded into CO2 and H2O. A suitable tentative mechanism for sono-photochemical bleaching of azure-B by sono-photo-Fenton’s reaction has been proposed.

  4. Estudo prospectivo sobre os hábitos de sono na criança e no adolescente

    Directory of Open Access Journals (Sweden)

    Vera Rocha

    2017-06-01

    Full Text Available Introdução: O sono desempenha um papel fundamental do ponto de vista biológico, emocional, familiar e social. O impacto do sono sobre a saúde ganhou nos últimos tempos, uma maior atenção e tem-se tornado uma preocupação crescente dos pais. Este estudo tem como objetivos avaliar e caracterizar os hábitos de sono das crianças e dos adolescentes e relacionar o padrão de sono e o rendimento escolar desta população. Métodos: Foi aplicado um inquérito por entrevista direta com as crianças e adolescentes com idades entre os 10 e os 18 anos, em consulta de vigilância de saúde infantil, durante três meses. Resultados: Analisaram-se 113 inquéritos. A idade mediana foi de 13 anos, sendo 62,8% do sexo feminino. A mediana da duração do sono em ambos os sexos foi de 8 horas. Apenas 15 (13,3% cumpriram a recomendação das 10 a 11 horas de sono. 51,2 % das crianças / adolescentes que ficaram retidos, pelo menos uma vez, no mesmo ano letivo, dormiam menos de oito horas / dia (p <0,001. Cerca de 88% com a autoavaliação do desempenho escolar como “mau” apresentavam uma duração do sono inferior a 8 horas, sendo essa proporção de 11,8% (17% do total de inquiridos naqueles com uma autoavaliação “muito bom” (p <0,001. Crianças/ adolescentes com uma duração de menos de oito horas/ dia apresentavam uma probabilidade 5,5 vezes maior de ficarem retidos no mesmo ano escolar em comparação com aqueles com a duração mínima de 8 horas de sono. Foram encontradas diferenças estatisticamente significativas (p <0,001 entre a duração do sono e a dificuldade em adormecer e o adormecer em sala de aula. Discussão/ Conclusões: Os resultados mostram que é importante atuar na prevenção, alertando pais, crianças e adolescentes para a importância de uma boa higiene do sono, promovendo padrões de sono saudável.

  5. Fatores que interferem no sono dos alunos idosos da Universidade da Maturidade (UMA, na cidade de Palmas (TO

    Directory of Open Access Journals (Sweden)

    Núbia Kênia Carneiro Silva

    2015-05-01

    Full Text Available O processo de senescência ocasiona mudanças na quantidade e qualidade do sono; assim, a maioria dos idosos tem queixas relacionadas ao sono, decorrentes de mudanças fisiológicas específicas do processo de envelhecimento, que podem causar distúrbios relacionados ao sono. Objetiva-se verificar quais os fatores que interferem no sono dos idosos alunos da Universidade da Maturidade (UMA, na cidade de Palmas (TO. Trata-se de um estudo descritivo de corte transversal, e de natureza quantitativa. Para o levantamento dos dados, utilizaram-se os instrumentos: Questionário de caracterização socioeconômico, seguido da Escala de Sonolência de Epworth (ESE, e do Índice de Qualidade de Sono de Pittsburgh (PSQI. Os resultados da ESE revelaram que 75% do grupo masculino e 51,85% do feminino apresentaram sonolência diurna excessiva normal com escores <10. As respostas abertas do PSQI, em relação à hora de deitar, mostram que 43,75% dos homens deitavam entre 23 e 24 horas; no grupo das mulheres, 29,63% deitavam entre 21 e 22 horas; quanto ao tempo para dormir, 68,75% dos homens e 62,96% das mulheres demoravam ≤ 15 minutos; em relação à hora de acordar, 75% dos homens e 37,04% das mulheres acordam entre 6 e 7 horas; em relação a quantas horas de sono dormiu por noite, 50% dos homens dormiram entre 7 e 8 horas por noite, e 51,85% das mulheres dormiram ≥ 8 horas por noite. Já no PSQI global, 56,25% dos homens possuem uma boa qualidade do sono, enquanto 66,67% das mulheres apresentaram má qualidade do sono, apesar de terem uma maior eficiência relacionada ao sono. Os resultados mostraram que os homens tiveram uma boa qualidade do sono e as mulheres tiveram uma má qualidade do sono.  

  6. Effect of acoustic parameters on the cavitation behavior of SonoVue microbubbles induced by pulsed ultrasound.

    Science.gov (United States)

    Lin, Yutong; Lin, Lizhou; Cheng, Mouwen; Jin, Lifang; Du, Lianfang; Han, Tao; Xu, Lin; Yu, Alfred C H; Qin, Peng

    2017-03-01

    SonoVue microbubbles could serve as artificial nuclei for ultrasound-triggered stable and inertial cavitation, resulting in beneficial biological effects for future therapeutic applications. To optimize and control the use of the cavitation of SonoVue bubbles in therapy while ensuring safety, it is important to comprehensively understand the relationship between the acoustic parameters and the cavitation behavior of the SonoVue bubbles. An agarose-gel tissue phantom was fabricated to hold the SonoVue bubble suspension. 1-MHz transmitting transducer calibrated by a hydrophone was used to trigger the cavitation of SonoVue bubbles under different ultrasonic parameters (i.e., peak rarefactional pressure (PRP), pulse repetition frequency (PRF), and pulse duration (PD)). Another 7.5-MHz focused transducer was employed to passively receive acoustic signals from the exposed bubbles. The ultraharmonics and broadband intensities in the acoustic emission spectra were measured to quantify the extent of stable and inertial cavitation of SonoVue bubbles, respectively. We found that the onset of both stable and inertial cavitation exhibited a strong dependence on the PRP and PD and a relatively weak dependence on the PRF. Approximate 0.25MPa PRP with more than 20μs PD was considered to be necessary for ultraharmonics emission of SonoVue bubbles, and obvious broadband signals started to appear when the PRP exceeded 0.40MPa. Moreover, the doses of stable and inertial cavitation varied with the PRP. The stable cavitation dose initially increased with increasing PRP, and then decreased rapidly after 0.5MPa. By contrast, the inertial cavitation dose continuously increased with increasing PRP. Finally, the doses of both stable and inertial cavitation were positively correlated with PRF and PD. These results could provide instructive information for optimizing future therapeutic applications of SonoVue bubbles. Copyright © 2016 Elsevier B.V. All rights reserved.

  7. Charge retention in scaled SONOS nonvolatile semiconductor memory devices—Modeling and characterization

    Science.gov (United States)

    Hu, Yin; White, Marvin H.

    1993-10-01

    A new analytical model is developed to investigate the influence of the charge loss processes in the retention mode of the SONOS NVSM device. The model considers charge loss by the following processes: (1) electron back-tunneling from the nitride traps to the Si conduction band, (2) electron back-tunneling from the nitride traps to the Si/SiO 2 interface traps and (3) hole injection from the Si valence band to the nitride traps. An amphoteric trap charge distribution is used in this model. The new charge retention model predicts that process (1) determines the short term retention, while processes (2) and (3) determine the long term retention. Good agreement has been reached between the results of analytical calculations and the experimental retention data on both surface channel and buried channel SONOS devices.

  8. Le soluzioni di logistica urbana sono sostenibili? L'esempio di Cityporto

    Directory of Open Access Journals (Sweden)

    Jesus Gonzalez-Feliu

    2010-07-01

    Full Text Available La logistica urbana è un campo di riflessione volto ad approfondire le soluzioni ottimali per la distribuzione delle merci in ambito urbano e i relativi obiettivi ambientali. Ad oggi, molte azioni sono state intraprese dalle pubbliche autorità senza tenere conto, tuttavia, degli impatti che i nuovi schemi organizzativi possono avere sull’ attuale organizzazione delle imprese. Il contributo incentra la riflessione sul caso studio relativo alla città di Padova, in Italia: il sistema di logistica urbana CityPorto. In particolare, se ne analizzano le caratteristiche dal punto di vista della sostenibilità del sistema proposto, sia in riferimento alla dimensione imprenditoriale che a quella collettiva, mettendo in relazione le peculiarità della logistica urbana e le più estese catene distributive, di scala globale, di cui le prime sono parte integrante.

  9. Qualidade do sono e marcadores endócrinos e bioquímicos

    OpenAIRE

    Carvalho, Ana Sofia Coelho de; Fernandes, Adília; Belen Gallego, Ana; Vaz, Josiana A.; Sierra Vega, Matilde

    2016-01-01

    O sono e o repouso constituem o ritmo biológico base da espécie humana e são fundamentais para uma boa saúde e qualidade de vida, com especial significado em crianças e jovens (DGS, 2015). Dormir bem é fundamental para a recuperação física e psíquica do indivíduo, indispensável para sermos saudáveis e essencial para nos mantermos ativos, concentrados e bem-dispostos. O sono é um equilibrador do humor e das emoções, recupera o corpo e a memória, estimula a criatividade e aumenta e consolida a ...

  10. Appearance of high submerged cavitating jet: The cavitation phenomenon and sono luminescence

    Directory of Open Access Journals (Sweden)

    Hutli Ezddin

    2013-01-01

    Full Text Available In order to study jet structure and behaviour of cloud cavitation within time and space, visualization of highly submerged cavitating water jet has been done using Stanford Optics 4 Quick 05 equipment, through endoscopes and other lenses with Drello3244 and Strobex Flash Chadwick as flashlight stroboscope. This included obligatory synchronization with several types of techniques and lenses. Images of the flow regime have been taken, allowing calculation of the non-dimensional cavitation cloud length under working conditions. Consequently a certain correlation has been proposed. The influencing parameters, such as; injection pressure, downstream pressure and cavitation number were experimentally proved to be very significant. The recordings of sono-luminescence phenomenon proved the collapsing of bubbles everywhere along the jet trajectory. In addition, the effect of temperature on sono-luminescence recordings was also a point of investigation. [Projekat Ministarstva nauke Republike Srbije, br. TR35046

  11. Qualidade de sono de trabalhadores obesos de um hospital universitário: acupuntura como terapia complementar

    Directory of Open Access Journals (Sweden)

    Mariana Lourenço Haddad

    2012-02-01

    Full Text Available O objetivo do estudo foi verificar o efeito da acupuntura na qualidade de sono de trabalhadores obesos em um hospital universitário. Os dados foram coletados no período de julho a outubro de 2009, junto a 37 funcionários, submetidos a oito aplicações semanais de acupuntura. O Índice de Qualidade de Sono de Pittsburgh foi utilizado para identificar a qualidade de sono dos sujeitos antes e após a intervenção. Os resultados mostram que antes da intervenção cinco (13,5% pessoas apresentaram boa qualidade de sono e, ao final da intervenção, 14 (37,8% relataram este quadro. A diferença obtida na comparação das médias dos escores obtidos antes e após a acupuntura foi significativa (p=0,0001. Concluiu-se que a acupuntura produziu um efeito positivo sobre a qualidade do sono na amostra estudada, apresentando-se como uma técnica adjuvante no tratamento dos distúrbios do sono e consequentemente na melhoria da qualidade de vida desta população.

  12. Improvement in mechanical properties of hypereutectic Al-Si-Cu alloys through sono-solidified

    Directory of Open Access Journals (Sweden)

    Yoshiki Tsunekawa

    2014-07-01

    Full Text Available For the wider applications, it is necessary to improve the ductility as well as the strength and wear-resistance of hypereutectic Al-Si-Cu alloys, which are typical light-weight wear-resistant materials. An increase in the amounts of primary silicon particles causes the modified wear-resistance of hypereutectic Al-Si-Cu alloys, but leads to the poor strength and ductility. It is known that dual phase steels composed of hetero-structure have succeeded in bringing contradictory mechanical properties of high strength and ductility concurrently. In order to apply the idea of hetero-structure to hypereutectic Al-Si-Cu alloys for the achievement of high strength and ductility along with wear resistance, ultrasonic irradiation of the molten metal during the solidification, which is called sono-solidification, was carried out from its molten state to just above the eutectic temperature. The sono-solidified Al-17Si-4Cu alloy is composed of hetero-structure, which are, hard primary silicon particles, soft non-equilibrium a -Al phase and the eutectic region. Rheo-casting was performed at just above the eutectic temperature with sono-solidified slurry to shape a disk specimen. After the rheo-casting with modified sonosolidified slurry held for 45 s at 570 篊, the quantitative optical microscope observation exhibits that the microstructure is composed of 18area% of hard primary silicon particles and 57area% of soft a -Al phase. In contrast, there exist only 5 area% of primary silicon particles and no a -Al phase in rheo-cast specimen with normally solidified slurry. Hence the tensile tests of T6 treated rheo-cast specimens with modified sono-solidified slurry exhibit improved strength and 5% of elongation, regardless of having more than 3 times higher amounts of primary silicon particles compared to that of rheo-cast specimen with normally solidified slurry.

  13. Privação de sono total na doença de Parkinson

    Directory of Open Access Journals (Sweden)

    Paulo H. F. Bertolucci

    1987-09-01

    Full Text Available Doze pacientes com doença de Parkinson (DP foram submetidos a privação de sono total. A média de idade dos pacientes era 61 anos e a duração da doença era em média de 5,1 anos (1,5 a 12 anos. Quatro deles usavam apenas anticolinérgico, 4 usavam L-Dopa e 4 combinação de drogas de ambos os grupos. Após privação de sono total por uma única noite foi verificada melhora na rigidez, bradicinesia, alterações de postura e marcha e incapacidade funcional com duração de duas semanas, em comparação com os escores quando da inclusão no estudo. Não foi observado efeito sobre o tremor. Em relação aos sintomas depressivos foi verificada melhora com duração de apenas uma semana. Estes resultados sugerem efeito benéfico da privação de sono na DP. Com base em estudos experimentais julgamos que uma explicação possível para estes resultados seja a modificação de receptores dopaminérgicos.

  14. Sono-electroanalysis of copper: enhanced detection and determination in the presence of surfactants.

    Science.gov (United States)

    Hardcastle, Joanna Lorraine; Hignett, Geraldine; Melville, James L; Compton, Richard G

    2002-04-01

    Surfactant adsorption has been shown to have a passivating effect on the electrode surface during anodic stripping voltammetric measurements. In the present work the feasibility of sono-anodic stripping analysis for the determination of copper in aqueous media contaminated with surfactant has been studied at an unmodified bare glassy carbon electrode. We illustrate the deleterious effect of three common surfactants, sodium dodecyl sulfate (SDS), dodecyl pyridinium chloride (DPC) and Triton-X 100 (TX-100) on conventional electroanalysis. The analogous sono-electroanalytical response was investigated for each surfactant at ultrasound intensities above and below the cavitation threshold. The enhancement in the stripping signal observed is attributed to the increased mass transport due to acoustic streaming and above the cavitation threshold the intensity of cavitational events is significantly increased leading to shearing of adsorbed surfactant molecules from the surface. As a result accurate analyses for SDS concentrations up to 100 ppm are possible, with analytical signals visible in solutions of SDS and TX-100 of 1000 ppm. Analysis is reported in high concentration of surfactant with use of sono-solvent double extraction. The power of this technique is clearly illustrated by the ability to obtain accurate measurements of copper concentration from starting solutions containing 1000 ppm SDS or TX-100. This was also exemplified by analysis of the low concentration 0.3 microM Cu(II) solution giving a percentage recovery of 94% in the presence of 1000 ppm SDS or TX-100.

  15. Memristive device based on a depletion-type SONOS field effect transistor

    Science.gov (United States)

    Himmel, N.; Ziegler, M.; Mähne, H.; Thiem, S.; Winterfeld, H.; Kohlstedt, H.

    2017-06-01

    State-of-the-art SONOS (silicon-oxide-nitride-oxide-polysilicon) field effect transistors were operated in a memristive switching mode. The circuit design is a variation of the MemFlash concept and the particular properties of depletion type SONOS-transistors were taken into account. The transistor was externally wired with a resistively shunted pn-diode. Experimental current-voltage curves show analog bipolar switching characteristics within a bias voltage range of ±10 V, exhibiting a pronounced asymmetric hysteresis loop. The experimental data are confirmed by SPICE simulations. The underlying memristive mechanism is purely electronic, which eliminates an initial forming step of the as-fabricated cells. This fact, together with reasonable design flexibility, in particular to adjust the maximum R ON/R OFF ratio, makes these cells attractive for neuromorphic applications. The relative large set and reset voltage around ±10 V might be decreased by using thinner gate-oxides. The all-electric operation principle, in combination with an established silicon manufacturing process of SONOS devices at the Semiconductor Foundry X-FAB, promise reliable operation, low parameter spread and high integration density.

  16. Treating soil-washing fluids polluted with oxyfluorfen by sono-electrolysis with diamond anodes.

    Science.gov (United States)

    Vieira Dos Santos, E; Sáez, C; Cañizares, P; Martínez-Huitle, C A; Rodrigo, M A

    2017-01-01

    This works is focused on the treatment by sono-electrolysis of the liquid effluents produced during the Surfactant-Aided Soil-Washing (SASW) of soils spiked with herbicide oxyfluorfen. Results show that this combined technology is very efficient and attains the complete mineralization of the waste, regardless of the surfactant/soil radio applied in the SASW process (which is the main parameter of the soil remediation process and leads to very different wastes). Both the surfactant and the herbicide are completely degraded, even when single electrolysis is used; and only two intermediates are detected by HPLC in very low concentrations. Conversely, the efficiency of single sonolysis approach, for the oxidation of pollutant, is very low and just small changes in the herbicides and surfactant concentrations are observed during the tests carried out. Sono-electrolysis with diamond electrodes achieved higher degradation rates than those obtained by single sonolysis and/or single electrolysis with diamond anodes. A key role of sulfate is developed, when it is released after the electrochemical degradation of surfactant. The efficient catalytic effect observed which can be explained by the anodic formation of persulfate and the later, a sono-activation is attained to produce highly efficient sulfate radicals. The effect of irradiating US is more importantly observed in the pesticide than in the surfactant, in agreement with the well-known behavior of these radicals which are known to oxidize more efficiently aromatic compounds than aliphatic species. Copyright © 2016 Elsevier B.V. All rights reserved.

  17. Survey of pollution-resistant plants and their cultivating techniques; Osen busshitsu taisei shokubutsu to sono shokusai gijutsu ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The reduction of forests due to environmental pollution has been surveyed, to investigate the pollution-resistant plants and solid microorganisms. In Japan, the blight of needle-leaf trees (pine and momi fir) and of Japanese oak has occurred, and blight of some other trees, such as wild cherry trees, Japanese apricot trees, birch, Japanese cedar, cypress and bamboo, has been reported from various regions. In this article, plants reported to be resistant to pollutants are listed, and the physiological features of these plants are described. Furthermore, to develop pollution-resistant plants, reports relating to clarification of the mechanism of resistance development and the genes involved are reviewed. Microorganisms which symbioses for roots support these root functions. They also suppress the activity of pathogenic microorganisms and improve the environment around the roots, thus helping plants to grow normally. The roles played by symbiotic microorganisms and how to utilize these organisms are discussed. Their functions in coping with acid rain and heavy metal pollution, and how to utilize such functions are also discussed. 707 refs., 13 figs., 13 tabs.

  18. Front line of cement technolgy and control. Part 5. ; Baking process and chemical reactions. Cement saisentan sono gijutsu to kanri 5. ; Shosei katei to kagaku hanno

    Energy Technology Data Exchange (ETDEWEB)

    Hirai, M. (Ube Industries, Ltd., Yamaguchi (Japan))

    1990-06-01

    The baking process in cement production means the process that the raw materials which were mixed and pulverized in the raw material preparation process are charged into a reaction furnace which is called kiln, and clinders (intermediate product of cement) are generated. It is the process which affects quality as well as production cost of cement more significantly than anything else. In this article, an outline of the above baking facilities, how the raw materials change and clinkers are generated therein, and how they are controlled are introduced. Clinkers are composed of such products as alite, belite, aluminate and ferrite, etc. which were generated after decomposition reactions of such raw materials as lime stone, clay, silica rock and iron oxide in the above kiln. The essential ponts of the process control which makes the generation reactions of clinker compounds efficiently are such two points as well balanced raw materials to be charged into the baking facilities and stable operation of such facilities. The quality of cement which is required as finished goods is achieved by the quality control at each intermediate process and the quality tests of cement. 5 refs., 10 figs., 2 tabs.

  19. CAE to support a part of supporting technologies-its applications and verifying samples. Shien gijutsu no ittan wo sasaeru CAE sono torikumi to kensho rei

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, H. (Polyplastic Co. Ltd., Tokyo (Japan))

    1992-01-01

    Plastic CAE has suddenly being widened their applicable fields recently. On the other hand, since integated program development has also been made worldwidely, currently it is posssible to execute even for shrinkings and warping and warping analysis based on holding pressure analysis and cooling analysis. Polyplastics Company Inc. has paid attention to the usefullness of CAE technologies for engineering plastics from the early times, and in order to utilized them effectively, they have progressed several examinations on CAE software development, improvement of CAE analysis technologies, confirmation and verification of CAE analysis precision, resin data preparations and measuring methods, etc. In this paper, their applications have been introduced mainly by their verification samples such as output sample of FACE-2, which is their originally developped metal mold temperature adjustment design supporting system, and as for verification samples of warping deformation analysis, experimental result of testing metal mold (box type), and reliabilities on the results of measured precision and quantitative analysis of resin data to be used for analysis. 6 refs., 6 figs., 1 tab.

  20. Numerical analysis of exhaust gas flow during the gas exchange process and the design optimization; Haiki manihorudonai no hiteijo nagare kaiseki gijutsu to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Yoshizawa, K; Takeyama, S; Sakai, E; Tanzawa, K [Nissan Motor Co. Ltd., Tokyo (Japan)

    1997-10-01

    A simulation method was developed to estimate exhaust gas flow during the gas exchange process. In this simulation, one dimensional in-cylinder gas flow calculation and three dimensional exhaust gas flow calculation were combined. Gas flow inside the exhaust manifold catalyst during gas exchange was agreed in experiments. A simulation method was applied to select oxygen sensor location. A prediction of the oxygen sensor sensitivity of each cylinder gas was presented. The possibility of selecting oxygen sensor location in the exhaust manifold using calculation was proved. 5 refs., 10 figs., 1 tab.

  1. Avaliação da qualidade de vida e do sono de atletas paralímpicos brasileiros

    Directory of Open Access Journals (Sweden)

    Andrea Maculano Esteves

    2015-02-01

    Full Text Available INTRODUÇÃO: o esporte paralímpico brasileiro vem ganhando destaque no cenário mundial e, com isso, a avaliação de variáveis que possam influenciar positivamente no desempenho desses atletas é de suma importância para o acompanhamento durante o seu período de treinamento. OBJETIVO: avaliar a qualidade de vida e do sono de atletas paralímpicos brasileiros. MÉTODOS: foram estudados 49 atletas paralímpicos das modalidades natação (n=20 e atletismo (n=29. Os atletas responderam a questionários que avaliaram seu padrão e queixas de sono e qualidade de vida. RESULTADOS: a maioria dos atletas (65,30% relatou má qualidade do sono, visto que a latência do sono neste grupo foi significativamente maior do que em atletas com boa qualidade de sono. Cinquenta por cento dos atletas relataram o desejo de fazer mudanças em seu horário de sono e 52% gostariam de aumentar o seu tempo de sono. A sonolência diurna excessiva foi observada em 53,06% dos atletas. Quanto às queixas de distúrbios do sono, foram relatados chute ou espasmos das pernas e ronco. Menores índices de qualidade de vida foram encontrados no meio ambiente em comparação com os domínios físicos, psicológicos ou sociais. CONCLUSÕES: os resultados sugerem que a maioria dos atletas apresentou uma má qualidade do sono e, consequentemente, um alto índice de insatisfação com o sono. Além disso, menores escores de qualidade de vida foram encontrados no domínio ambiental, que está relacionado com a segurança física, proteção e condições em casa.

  2. Mecanismos do ciclo sono-vigília Sleep-wake cycle mechanisms

    Directory of Open Access Journals (Sweden)

    Flávio Alóe

    2005-05-01

    Full Text Available Três sub-divisões hipotalâmicas são importantes no ciclo sono-vigília: o hipotálamo anterior (núcleos gabaérgicos e núcleos supraquiasmáticos, o hipotálamo posterior (núcleo túbero-mamilar histaminérgico e o hipotálamo lateral (sistema hipocretinas. O sistema gabaérgico inibitório do núcleo pré-óptico ventro-lateral (VLPO do hipotálamo anterior é responsável pelo início e manutenção do sono NREM. Os neurônios supraquiasmáticos (NSQs do hipotálamo anterior são responsáveis pelo ritmo circadiano do ciclo sono-vigília. Os núcleos aminérgicos, histaminérgicos, as hipocretinas e núcleos colinérgicos do prosencéfalo basal apresentam-se ativos durante a vigília, inibindo o núcleo pré-óptico ventro-lateral, promovendo a vigília. O processo de inibição-estimulação é a base do modelo da interação recíproca entre os grupos de células wake-off-sleep-on e células wake-off-sleep-on reguladores do ciclo sono-vigília. O modelo da interação recíproca também se aplica aos núcleos colinérgicos (células REM-on e aminérgicos (células REM-off do tronco cerebral no controle temporal do sono REM-NREM.Neurochemically distinct systems interact regulating sleep and wakefulness. Wakefulness is promoted by aminergic, acetylcholinergic brainstem and hypothalamic systems. Each of these arousal systems supports wakefulness and coordinated activity is required for alertness and EEG activation. Neurons in the pons and preoptic area control rapid eye movement and non-rapid eye movement sleep. Mutual inhibition between these wake- and sleep-regulating systems generate behavioral states. An up-to-date understanding of these systems should allow clinicians and researchers to better understand the effects of drugs, lesions, and neurologic disease on sleep and wakefulness.

  3. Relação entre a prevalência de Bruxismo e a Apneia do Sono

    Directory of Open Access Journals (Sweden)

    Andressa Bergmeier

    2016-08-01

    Full Text Available A síndrome da apneia obstrutiva do sono é considerada um transtorno respiratório do sono cuja característica principal são pausas na respiração durante o sono. Estas paradas podem ter relação com várias patologias do sono, como por exemplo o bruxismo, que nada mais é que o contato não-funcional dos dentes. O objetivo do presente trabalho foi verificar a prevalência do bruxismo em pacientes com a apneia do sono e avaliar se há uma relação deste com o grau de apneia. A avaliação foi realizada através de exame polissonográfico, onde foram avaliados 23 pacientes que se submeteram à polissonografia na clinica SNN no mês de agosto. Os dados da pesquisa demonstraram que 52% dos participantes foram diagnosticados com apneia do sono do tipo grave e destes, 75% além de apneia possuíam bruxismo. A apneia moderada foi diagnosticada em 26% dos pacientes, onde 8,30% tiveram episódios de bruxismo.  Já 22% dos pacientes possuíam Apneia leve, e destes 16,70% tiveram episodio de bruxismo. Não houve Correlação significativa entre o grau de apneia e a frequência de bruxismo (rho= 0,403 e p=0,057.  Conclui-se então, que nesta pesquisa o bruxismo não apresentou relação estatisticamente significante com o grau de apneia do sono, mesmo ele ocorrendo com uma maior predominância em pacientes que possuíam apneia do tipo grave.

  4. Survey and research for the enhancement of large-scale technology development 1. Japan's large-scale technology development and the effects; Ogata gijutsu kaihatsu suishin no tame no chosa kenkyu. 1. Nippon no daikibo gijutsu kaihatsu to sono koka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-03-01

    A survey is conducted into the effects of projects implemented under the large-scale industrial technology research and development system. In the development of 'ultraperformance computers,' each of the technologies is being widely utilized, and the data service system of Nippon Telegraph and Telephone Public Corporation and the large computer (HITAC8800) owe much for their success to the fruits of the development endeavor. In the development of the 'desulfurization technology,' the fruits are in use by Tokyo Electric Power Co., Inc., and Chubu Electric Power Co., Inc., incorporated into their desulfurization systems. Although there is no practical plant based on the 'great-depth remotely controlled submarine oil drilling rig,' yet oceanic technologies and control methods are being utilized in various fields. The 'seawater desalination and by-product utilization' technologies have enabled the establishment of technologies of the top level in the world thanks to the resultant manufacture of concrete evaporator and related technologies. Eleven plants have been completed utilizing the fruits of the development. In the field of 'electric vehicle,' there is no commercialization in progress due to problems in cost effectiveness though remarkable improvement has been achieved in terms of performance. Technologies about weight reduction, semiconductor devices, battery parts and components, etc., are being utilized in many fields. (NEDO)

  5. Achievement report for fiscal 1998 on research and development of multifunction members structure control technologies. Development of advanced surface treatment technologies for methane-fueled aero engines (1. Microstructure control technologies for ultrahigh temperature members); 1998 nendo fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu. Methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu (chokoon buzai mikuro kozo seigyo gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The carbon fiber reinforced carbon composite materials (C/C composites) strong at ultrahigh temperatures are taken up. So as to improve on its resistance to oxidation, corrosion, and abrasion as well as on its strength at ultrahigh temperatures, an ion engineering-assisted technique is used to reform the C/C composite surface layer and a technology is developed for thin coating formation on the C/C composite surface. Next, technologies are developed for multifunction coating formation on top of the surface, for defect prevention or removal from the C/C composite, and for adhesion enhancement between the C/C composite fibers and the matrix. Technologies are further developed for evaluating hostile environment withstanding capabilities at ultrahigh temperatures. In this fiscal year, in the study of microstructure controlling multilayer coating technologies, development is conducted of technologies of ion engineering-assisted surface control and reform and of technologies of forming multifunctional coatings high in reliability and resistance to corrosion. In the field of microstructure control composition, 3-dimensional carbon fiber reinforced carbon composite materials are manufactured by way of trial and evaluated, and their behavior under rigorous conditions is evaluated. (NEDO)

  6. Report on the results of the fiscal 1997 R and D under consignment from NEDO of photon measuring/processing technology (development of high-efficiency production process technology); 1997 nendo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku photon keisoku kako gijutsu (kokoritsu seisan process gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Development is made of high energy-efficiency laser processing technology and high efficiency/high grade photon generation/control technology as laser light source, for the purpose of energy conservation/efficiency heightening of production processes which require a large amount of energy such as welding, joining, surface treatment, and particle fabrication. As to keyhole dynamics of the molten metal generated on the laser weld, construction of simulational mathematical models was started. Equipment to fabricate semiconductor ultrafine particles which become the core of quantum dot functional structures was designed to fabricate particles. In-situ optical measuring technology was studied of element/size of particles of below 30 nm in size by emission spectroscopy associated with the plasma irradiation. As tightly focusing all-solid-state laser technology, studied was the wavelength conversion method in which harmonics are generated four times as much as the fundamental wave due to high efficient generation of high power UV laser. Also studied were high laser strength, low optical losses, conditions for fostering high homogenity crystals. Technology for high accuracy processing of element surface was established. High efficiency photon generation technology was comprehensively investigated. 140 refs., 276 figs., 46 tabs.

  7. Fiscal 1996 comprehensive report on R and D on advanced chemical processing technology; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu sokatsu hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu / sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    R and D was conducted on technology for composite thin film formation such as laser MOCVD, for thin film lamination, and for synthesis reaction and characterization in compounded fields where temperature/pressure/magnetic field/electrical field, etc., are compounded, for the purpose of creating materials with functions newly added or reinforced by regulating compositions and structures through atomic/molecular orders. The R and D was conducted on 24 themes, which were rearranged into four categories. Examples of the themes are as follows; development of super hard permanent magnets by crystallization process control of Nd-Fe-B amorphous alloys, as for structural control technology; research on high functional thin film sensors (PbLaTiO{sub 3}) using laser MOCVD, and research on ultra thin film by multi-ion-beam sputtering with ion/photo irradiation, as for thin film technology; R and D on highly ordered structure control technology in electrode surface compounded reaction fields, as for compounded fields; and, research on diagnostic technique for compounded reaction fields by laser-ionization method, as for supporting technologies. (NEDO)

  8. `Technology for Advanced Treatment of High Melting Point Metal-Based Material,` local research and development of important technology for fiscal 1997. Development of materials creation technology for high efficiency power generator components; 1997 nendo juyo chiiki gijutsu kenkyu kaihatsu. `Koyuten kinzokukei buzai no kodo kako gijutsu` (kokoritsu hatsuden`yo buzai sosei gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Efforts are made for the creation of high melting point metal-base materials to replace the currently-used Ni-base superalloys for the turbine to withstand higher operating temperatures. The main efforts made in fiscal 1997 are outlined. As in fiscal 1996, Nb-base solution alloys, in which solution reinforcement elements such as Mo and W are alloyed, are manufactured by button arc melting and tested for mechanical properties and texture/characteristics. In the designing and evaluation for a strongest Nb-base composite material, Nb-base composite materials are manufactured by use of particle dispersion-strengthening attained by addition of intermetallic compounds or elements to contribute to the formation of oxides, carbides, or nitrides. Nb-base composite materials may also be manufactured by use of eutectic-strengthening attained by utilizing crystallization in the process of coagulation. The resultant Nb-base composite materials are evaluated for their dynamic characteristics at high temperatures. In the development and evaluation of technologies for creating Nb-base materials for high-temperature components, larger specimens as heavy as several kg are tested in line with small specimens for basic studies, and the results are utilized for alloy designing for high-temperature materials. 50 refs., 97 figs., 15 tabs.

  9. Fiscal 1997 report under consignment from NEDO on photon measuring/processing technology (development of power generation facility use high-function maintenance technology); 1997 nendo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku photon keisoku kako gijutsu (hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    A research/development was conducted on technologies of photon applied measuring/photon applied processing/photon generation which are usable for heightening of reliability and maintenance efficiency of power generation facilities. In fiscal 1997, high melting-point metal particles were manufactured by high energy density laser for formation of high temperature and stabilized fine functional circuit. Further, a wavelength changeable ultra red laser light source was studied which can make in-situ measurement of gas concentration and components. A study was also made to examine the surface composition by measuring fluorescent X-rays emitted by radiating high intensity laser beam on the surface of material. A rod type and a slab type as a high-output complete-solidified laser are under development. There is also a development aiming at high speed/high quality photon processing such as high speed/high precision welding/cutting and laser joining. Besides, a study is being made of high energy pulse/high quality beam complete-solidified laser. The paper made a comprehensive survey of the trend of the photon measuring/monitoring technology, and made a systematical arrangement of the developmental subjects extracted. 142 refs., 357 figs., 62 tabs.

  10. Comportamentos associados ao sono em estudantes do ensino médio: análises transversal e prospectiva

    Directory of Open Access Journals (Sweden)

    Luana Peter Hoefelmann

    2014-05-01

    Full Text Available DOI: http://dx.doi.org/10.5007/1980-0037.2014v16s1p68 A associação entre comportamentos de saúde e sono tem sido testada em jovens com dados transversais, mas evidências prospectivas são necessárias. O objetivo do estudo foi verificar associações transversais e prospectivas entre variáveis comportamentais e percepções de qualidade e duração de sono. Análise secundária transversal e longitudinal dos dados da pesquisa “Saúde na Boa”, desenvolvido de março a dezembro de 2006, com amostra aleatória de estudantes de ensino médio (14-24 anos de 20 escolas públicas de Recife e Florianópolis. A percepção da qualidade e da duração do sono e as variáveis do estilo de vida foram obtidas por autorrelato. Utilizaram-se regressões logísticas binárias brutas e ajustadas. Nos dados transversais e longitudinais, 45,7% e 45,8% dos jovens relataram má qualidade e 76,7% e 77,5% reportaram duração insuficiente do sono, respectivamente. Na análise transversal, a menor prática de atividade física (OR = 0,74; IC 95%: 0,55; 0,99 e o maior consumo de salgados (OR = 1,67; IC 95%: 1,18; 2,36 estiveram associados à qualidade negativa do sono, enquanto o tempo excessivo de televisão (OR = 0,48; IC 95%: 0,30; 0,75 e de consumo de refrigerantes (OR = 1,84; IC 95%: 1,19; 2,84 associaram-se à duração insuficiente do sono. Na análise prospectiva, nenhum dos comportamentos estudados se manteve associado à qualidade e duração do sono. As prevalências de percepção de qualidade e duração do sono se mantiveram estáveis nos dois momentos analisados. Alguns comportamentos se associaram às percepções de sono em análises transversais, mas estes achados não se confirmaram em análises prospectivas.

  11. Sono-photo-Fenton oxidation of bisphenol-A over a LaFeO3 perovskite catalyst.

    Science.gov (United States)

    Dükkancı, Meral

    2018-01-01

    In this study, oxidation of bisphenol-A (IUPAC name - 2,2-(4,4-dihydroxyphenyl, BPA), which is an endocrine disrupting phenolic compound used in the polycarbonate plastic and epoxy resin industry, was investigated using sono-photo-Fenton process under visible light irradiation in the presence of an iron containing perovskite catalyst, LaFeO 3 . The catalyst prepared by sol-gel method, calcined at 500°C showed a catalytic activity in BPA oxidation using sono-photo-Fenton process with a degradation degree and a chemical oxygen demand (COD) reduction of 21.8% and 11.2%, respectively. Degradation of BPA was studied by using individual and combined advanced oxidation techniques including sonication, heterogeneous Fenton reaction and photo oxidation over this catalyst to understand the effect of each process on degradation of BPA. It was seen, the role of sonication was very important in hybrid sono-photo-Fenton process due to the pyrolysis and sonoluminescence effects caused by ultrasonic irradiation. The prepared LaFeO 3 perovskite catalyst was a good sonocatalyst rather than a photocatalyst. Sonication was not only the effective process to degrade BPA but also it was the cost effective process in terms of energy consumption. The studies show that the energy consumption is lower in the sono-Fenton process than those in the photo-Fenton and sono-photo- Fenton processes. Copyright © 2017 Elsevier B.V. All rights reserved.

  12. Horas de sono e índice de massa corporal em pré-escolares do sul do Brasil

    Directory of Open Access Journals (Sweden)

    Maria Laura da Costa Louzada

    2012-12-01

    Full Text Available A prevenção e o tratamento do excesso de peso são particularmente complexos, reforçando a importância de estudos que visem esclarecer sua rede de causas e efeitos. Assim, o objetivo desse estudo foi avaliar a relação entre horas de sono noturnas e medidas antropométricas. Realizou-se uma análise transversal realizada a partir de dados de 348 crianças de 3 e 4 anos da cidade de São Leopoldo/ RS. As horas de sono noturnas foram relatadas pelas mães e as medidas de índice de massa corporal, circunferência da cintura e dobras cutâneas foram medidas de acordo com protocolo padrão. As análises foram ajustadas para consumo energético e horas de televisão assistidas. As crianças com excesso de peso apresentaram, em média, 0,39 horas a menos de sono em relação àquelas com peso adequado (9,77 ± 1,44 versus 10,17 ± 1,34; IC95% 0,03-0,76. Observou-se associação inversa entre horas de sono noturnas e valores de escore z de índice de massa corporal para idade (B = -0,12 IC95% -0,22--0,02. A circunferência da cintura e as dobras cutâneas apresentaram relação inversa com as horas de sono, porém sem diferença estatística. Em pré-escolares do sul do Brasil, menos horas de sono noturnas foram associadas com maiores valores de índice de massa corporal.

  13. Fiscal 1996 large-scale industrial technology R and D project report. R and D on processing technology for creating advanced functions; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This report summarizes the fiscal 1996 development result on technology for creating advanced bio-affinity materials. The functionally gradient artificial tooth root with fine structure was fabricated by the following processes. The surface of a cylindrical Ti rod was first dry-jet-sprayed with ultrafine particles prepared by RF plasma, where its composition was changed continuously from Ti to alumina in a radial direction to form an FGM layer. The so-formed green composite was then sintered while heating the Ti side and alumina side at 1400K and 1800K, respectively. Compressive strength over 200MPa, durability of 10{sup 7} stress cycles at 1000N, and adhesion strength over 65MPa to substrates were obtained. As the outermost surface of the composite was coated with hydroxyapatite by plasma spraying, cell growth on the surface was confirmed without any contamination with heavy metals. This material is suitable for dental use in mechanical and chemical properties. Study was made on non- destructive analysis of FGM. A slant angle injection method was studied to increase the instrumental resolution power of Rutherford backscattering spectrometers. Composition modification was analyzed at a nm level quantitatively. Positron annihilation Doppler broadening was also measured. (NEDO)

  14. FY 1992 Report on results of the research and development of the technologies for creating/processing advanced biomaterials; 1992 nendo senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    This project is aimed at development of the materials which show functions in a living body by coating a metal or synthetic resin substrate with layered peptide synthesized to contain unusual amino acid. A total of 9 areas are investigated; (1) designs of peptide structures/functions, (2) technologies for controlling conformers, (3) peptide with photoelectric conversion functions, (4) enzyme-aided synthesis of peptide, (5) methods for introducing unusual amino acid into peptide, (6) substrate forming technologies (immobilizing peptide and putting it one on another on the substrate), (7) substrate modifying technologies, (8) reagent for binding peptide to the substrate, and (9) technologies for creating and stabilizing biomaterials with molecule-recognition functions. The item (1) involves structural analysis of imidazoline compounds with a microphage-migrating activity, and understanding the relationship between the steric structures and physiological activity, to start screening the peptide design procedures. The item (2) involves control of peptide conformers by substituting part of conformer-controlled amino acid which constitutes peptide. The item (3) selects the method for synthesizing amino acid substituted with a squarylium pigment. (NEDO)

  15. Fiscal 1993 report on results of R and D on innovative technology for producing advanced biomaterial; 1993 nendo senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    R and D was conducted on a bio-functional material that is formed by synthesizing non-natural amino acids required for the manifestation of the function, incorporating the amino acids into new bio-functional peptides to be synthesized, and fixing the peptides on a substrate such as plastics. Activities were carried out in three areas, which were (1) innovative technologies for producing functional molecules, (2) R and D on materialization technologies of functional molecules: technique of pattern formation by photochemical reaction and of fixation, and technique of preparing peptide film using vacuum thin film forming technology, and (3) comprehensive investigation and adjustment. In (1), migration stimulating activity for microphage was selected as a molecular recognition evaluation system, and on the basis of the structural analysis result of a non-peptide compound/imidazolin compound having migration stimulating activity, molecular structural design was carried out for peptides having migration stimulating activity. The result of the analysis revealed that the spatial arrangement of three phenyl nuclei and the presence of basic structures were important. Among the 22 peptides so designed, only Cbz-Phe-Phe-His-NH{sub 2} showed the migration stimulating activity. For the design, a peptide molecule design system CHARMm/QUANTA/PM3 was used. (NEDO)

  16. FY 1992 Report on results of the research and development of the technologies for creating/processing advanced biomaterials. Part 2; 1992 nendo senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu seika hokokusho. 2. Sogo chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    This project is aimed at development of the materials which show functions in a living body by coating a substrate of, e.g., silica or glass, with layered novel peptide synthesized to include unusual amino acid required to have the functions. The existing peptide-related technologies are reviewed and the natural peptide list is prepared. A total of 15 literature is surveyed, and the contents are pigeonholed into 8 items; (1) prospects of peptide engineering, (2) designs of peptide structures, (3) technologies of peptide synthesis, (4) synthesis of unusual amino acid and inclusion into peptide, (5) analysis of peptide structures, (6) physiological activity of peptide, (7) development of peptide materials and function manifestation, and (8) information retrieval of natural peptide (comprising 30 amino acids or less). The item (2) involves analysis and prediction of hydrophobicity of oligopeptide, item (3) chemical synthesis of protein, and protease-aided condensation of dipeptide, and item (7) solar cells based on a photoelectric conversion material and pigment-sensitized colloidal titanium oxide. (NEDO)

  17. Leading research and study report for fiscal 1998. Research and study of 3-dimensional ion processing technologies; 1998 nendo sendo chosa kenkyu hokokusho. Sanjigen ion kako gijutsu no chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Reported are the results of 'Research of 3-Dimensional Ion Processing Technologies.' Tasks to solve before the practical application of 3-dimensional technologies are extracted, and the possible effects of the new technologies on the creation of novel industries are investigated. In the field of new processing technologies, the special characteristics, current state, and tasks to solve are reported concerning the implantation technology, film formation technology, and hybridization which utilize plasma ion implantation. In the field of element technologies for device development, the current state and tasks of high-density plasma generation, homogeneous implantation, etc., are taken up, and the need is mentioned of inductively coupled plasma and surface wave excited plasma. As regards homogeneous implantation, the need is mentioned of technologies for forming matrix sheaths and pulsed plasma. In the field of 3-dimensional ion processing technologies application to the production of commercial goods, large items and their components such as automobiles, rollers, turbines, etc., are taken up, and the surface reforming technologies are reported, with reference made to their current state, tasks, predicted future market, concurrent technologies, feasibility of their application, the hopes and expectations they have aroused, etc. (NEDO)

  18. FY 1991 Report on the results of the research and development of the processing technologies for creating advanced functions; 1991 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    This project is aimed at development of the technologies for materials to be used in a living body, which is required to be compatible with a living body, durable and mechanically strong, wherein a metallic structure surface is coated with multi-layered film with metallic composition continuously changing to ceramic composition to have inclined functions. First, a titanium base is coated with a film of inclined functions, comprising ultrafine particles of alumina and titanium, and then with a film of hydroxyapatite, to form the artificial root of tooth. The forming/processing process comprises preparation (forming) of the titanium base, preparation of the ultrafine particles of titanium and alumina separately, mixing these two types of ultrafine particles in a state of aerosol, sintering of the mixture, and coating the sinter with hydroxyapatite. The base is coated with layers of aerosol mixtures with ultrafine metal particle content continuously changing from the metal to alumina, to form the film of inclined functions. The FY 1991 efforts are directed to development of the technologies for producing aerosol of the ultrafine ceramic particles utilizing the technologies for dry process of dispersing the agglomerated particles and rf plasma. (NEDO)

  19. Report on achievements of research and development of an automatic sewing system in fiscal 1986. Sewing preparation and processing technology; 1986 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. Hosei junbi kako gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-03-01

    This paper describes the sewing preparation and processing technology from the achievement report for fiscal 1986 on developing an automatic sewing system. For the cloth property evaluation technology, such devices were used to measure different kinds of cloths and evaluate cloth properties related to sewing performance, as the KES testing machine, the measuring device for composite transformation, large transformation and bending, and composite surface properties, the cloth air permeability testing machine, and the thermal property measuring device. The system was verified with regard to data banking to confirm feasibility of the system to practical application. Among the cloth stabilizing technologies, discussions were given on age-based stability of cloth properties, repetitive transformation resistance, temperature, hardener deposition amount, and bending rigidity in cloths treated with temporary hardening agents. Discoloration, robustness and device damaging effect of cloths were also investigated. A partial and temporary hardening device was fabricated to make partial hardening possible. A continuous deflocculating device was also fabricated making deflocculation of temporarily hardened cloth possible. The deflocculation was discussed on the sewing process in relation with workability, and it was revealed that low-level hardening treatment is effective. It was verified that the handling is facilitated particularly in cloths that tend to curl. (NEDO)

  20. Leading research and study report for fiscal 1998. Research and study of 3-dimensional ion processing technologies; 1998 nendo sendo chosa kenkyu hokokusho. Sanjigen ion kako gijutsu no chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Reported are the results of 'Research of 3-Dimensional Ion Processing Technologies.' Tasks to solve before the practical application of 3-dimensional technologies are extracted, and the possible effects of the new technologies on the creation of novel industries are investigated. In the field of new processing technologies, the special characteristics, current state, and tasks to solve are reported concerning the implantation technology, film formation technology, and hybridization which utilize plasma ion implantation. In the field of element technologies for device development, the current state and tasks of high-density plasma generation, homogeneous implantation, etc., are taken up, and the need is mentioned of inductively coupled plasma and surface wave excited plasma. As regards homogeneous implantation, the need is mentioned of technologies for forming matrix sheaths and pulsed plasma. In the field of 3-dimensional ion processing technologies application to the production of commercial goods, large items and their components such as automobiles, rollers, turbines, etc., are taken up, and the surface reforming technologies are reported, with reference made to their current state, tasks, predicted future market, concurrent technologies, feasibility of their application, the hopes and expectations they have aroused, etc. (NEDO)

  1. Report on achievements of research and development of an automatic sewing system in fiscal 1985. Sewing preparation and processing technology; 1985 nendo jido hosei system no kenkyu kaihatsu seika hokokusho. Hosei junbi kako gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-03-01

    This paper describes the sewing preparation and processing technology, extracted from the achievement report for fiscal 1985 on developing an automatic sewing system. The cloth property evaluation technology was discussed by using the KES testing machine, and the composite transformation, large bending and composite surface property measuring device. Multiple regression analysis was made on cloth properties required for operation of each sewing process, and the summary of cloth properties required for the sewing devices was identified. A case study was performed on the data banking system on the sewing machine operating process as the object. For the cloth stabilization technology, seven kinds of temporary hardening agents were selected, and given the performance test. Literatures were investigated on tolerance for human body exposure to working environment pollution. Fabrication of the continuously operating temporary hardener processing device achieved the performance as designed. Discussions were given on temporary hardener flow rate and supply pressure, particle diameters and rotation speed of the rotating disk, particle properties and hardening performance, and work uniformity, where the performance of the continuous temporary hardening treatment was verified. High level correlation was derived between the relative handling difficulty and the cloth properties. With regard to the hardening standard, discussions are required also on the correlation with sewability. (NEDO)

  2. TEMPO DE TELA, PERCEPÇÃO DA QUALIDADE DE SONO E EPISÓDIOS DE PARASSONIA EM ADOLESCENTES

    Directory of Open Access Journals (Sweden)

    Alison Oliveira da Silva

    Full Text Available RESUMO Introdução: O sono é um importante componente no processo de desenvolvimento biológico e mental das crianças e dos adolescentes, considerado fonte de revitalização das funções orgânicas. Objetivo: Analisar a associação entre o tipo e tempo de exposição à tela, a percepção da qualidade de sono e os episódios de parassonia em adolescentes. Métodos: Estudo transversal que incorpora um levantamento epidemiológico de base escolar com amostra representativa (n = 481 de estudantes (14 a 19 anos do ensino médio da rede pública estadual do município de Caruaru, PE. Para a análise do sono e do estilo de vida, foi utilizada a versão traduzida e adaptada do Global School-Based Student Health Survey (GSHS. Recorreu-se à regressão logística binária para análise da associação entre as variáveis, considerando-se como desfecho a percepção negativa da qualidade de sono. Resultados: A prevalência de percepção negativa da qualidade de sono foi de 58% (IC 95% 53,5-62,3. Entre os comportamentos analisados, verificou-se que dormir oito horas ou menos por dia e assistir mais de duas horas de TV por dia aumentam, respectivamente, 2,69 (IC 95% 1,61-4,71 e 1,71 (IC 95% 1,08-2,73 as chances de relatar percepção negativa de sono. O tempo excessivo de tela, sobretudo diante da TV, esteve associado à maior quantidade de episódios de parassonia. Conclusão: A qualidade do sono está relacionada tanto com a quantidade de horas de sono, quanto com o tempo de exposição à TV. Além disso, uma quantidade maior de episódios de parassonia ocorreu entre os adolescentes que assistem mais de três horas de TV por dia.

  3. Sono-Guided Percutaneous Automated Gun Biopsy in Pediatric Renal Disease

    International Nuclear Information System (INIS)

    Kim, Jong Chul

    1996-01-01

    To evaluate whether sono-guided percutaneous automated gun biopsy is also useful in pediatricpatients with renal diseases. In the prone position of twenty pediatric patients with renal parenchymal diseases, percutaneous biopsy was done through lateral aspect of the lower pole of left kidney with automated biopsy gun under the guidance of ultrasonography. The biopsy needle was either of 18 or 20 gauge. The obtained core of renal tissue was examined with light, immunofluorescent or electron microscope by the renal pathologist. In 18 among 20 patients, adequate renal tissue core sufficient to be pathologically diagnosed was obtained. The histologic findings were as follows : IG A nephropathy (n = 2), lupus nephritis (n =2), minimal change glomerulonephritis (n = 5), membranoproliferative glomerulonephritis (n = 3), mesangialproliferative glomeru-lonephritis (n = 1), diffuse proliferative glomerulonephritis (n = 3), focalglomerulo-sclerosis (n = 1), membranous glomerulopathy (n = 1). No significant complications occurred during or after the biopsy. Sono-guided percutaneous renal biopsy using automated biopsy gun is also useful todiagnose renal parenchymal diseases without significant complications in pediatric patients

  4. A comparative study of ascending urethrogram and sono-urethrogram in the evaluation of stricture urethra

    Directory of Open Access Journals (Sweden)

    Ravikumar B.R.

    2015-04-01

    Full Text Available To compare the efficacy of sono-urethrogram and ascending urethrogram in the evaluation of stricture urethra. Materials and Methods In this prospective study 40 patients with obstructive lower urinary tract symptoms and suspected to be having stricture urethra were subjected to ascending urethrogram and sonourethrogram. The radiologist was blinded to the findings of ascending urethrogram. All the sonourethrograms were done by the same radiologist. The findings of sonourethrogram & ascending urethrogram were compared with the findings of cystoscopy and intra-operative findings. The specificity, sensitivity,positive predictive value and negative predictive value of each modality in the diagnosis of various urethral anomalies were estimated. Results The sonourethrogram identified stricture disease in all the patients who had abnormal ascending urethrogram. In addition, other abnormalities like spongiofibrosis, diverticula and stones which were not picked up in ascending urethrogram were diagnosed by sonourethrogram. The cystoscopic and intra-operative findings with respect to stricture length, diameter and spongiofibrosis correlated well with sono-urethrogram findings. 5 patients who had stricture in the ascending urethrogram were found to be having the normal urethra in sonourethrogram and confirmed by cystoscopy. Conclusion sonourethrogram is an effective alternative to ascending urethrogram in the evaluation of stricture urethra. It is more sensitive in the diagnosis of anterior urethral strictures than posterior urethral strictures. It is superior to ascending urethrogram in the identification of spongiofibrosis, diameter and length of the stricture. The complications were lower in sonourethrogram group compared to ascending urethrogram.

  5. A comparative study of ascending urethrogram and sono-urethrogram in the evaluation of stricture urethra.

    Science.gov (United States)

    Ravikumar, B R; Tejus, Chiranjeevi; Madappa, K M; Prashant, Dharakh; Dhayanand, G S

    2015-01-01

    To compare the efficacy of sono-urethrogram and ascending urethrogram in the evaluation of stricture urethra. In this prospective study 40 patients with obstructive lower urinary tract symptoms and suspected to be having stricture urethra were subjected to ascending urethrogram and sonourethrogram. The radiologist was blinded to the findings of ascending urethrogram. All the sonourethrograms were done by the same radiologist. The findings of sonourethrogram & ascending urethrogram were compared with the findings of cystoscopy and intra-operative findings. The specificity, sensitivity,positive predictive value and negative predictive value of each modality in the diagnosis of various urethral anomalies were estimated. The sonourethrogram identified stricture disease in all the patients who had abnormal ascending urethrogram. In addition, other abnormalities like spongiofibrosis, diverticula and stones which were not picked up in ascending urethrogram were diagnosed by sonourethrogram. The cystoscopic and intra-operative findings with respect to stricture length, diameter and spongiofibrosis correlated well with sono-urethrogram findings. 5 patients who had stricture in the ascending urethrogram were found to be having the normal urethra in sonourethrogram and confirmed by cystoscopy. sonourethrogram is an effective alternative to ascending urethrogram in the evaluation of stricture urethra. It is more sensitive in the diagnosis of anterior urethral strictures than posterior urethral strictures. It is superior to ascending urethrogram in the identification of spongiofibrosis, diameter and length of the stricture. The complications were lower in sonourethrogram group compared to ascending urethrogram.

  6. Sono, fragilidade e cognição: estudo multicêntrico com idosos brasileiros

    Directory of Open Access Journals (Sweden)

    Ariene Angelini dos Santos

    2013-06-01

    Full Text Available O estudo objetivou analisar a influência conjunta das variáveis antecedentes (idade, gênero, renda, fragilidade e distúrbios de sono sobre a cognição de idosos residentes na comunidade. Trata-se de um recorte do projeto multicêntrico Fragilidade em Idosos Brasileiros (FIBRA. Foram avaliados 878 idosos, utilizando-se questionário sociodemográfico; questões sobre distúrbios de sono (Perfil de Saúde de Nottingham; questões sobre cochilo (Minnesota Leisure Activity Questionnaire e o MEEM (rastreio de alterações cognitivas. Na análise dos dados foram utilizados os testes Mann Whitney e Kruskal Wallis e a análise de regressão univariada e multivariada, com nível de significância de 5% (p<0,05. Os resultados mostraram que os idosos com menor escore do MEEM foram os com menor renda familiar, do sexo feminino e com maior idade. Os profissionais de saúde poderão desenvolver ações preventivas em relação à cognição, mantendo assim a autonomia e independência nas atividades cotidianas desses idosos.

  7. Fiscal 1998 achievement report on regional consortium research and development project. Research and development for developing basic technologies of composite laser-aided metal machining into highly advanced system (Technology of machining process systematization for furnishing titanium and titanium alloys with advanced functions - 2nd year); 1998 nendo fukugo laser nado ni yoru kinzoku kako kiban gijutsu no kodo system ka no kenkyu kaihatsu seika hokokusho. 2. Chitan oyobi chitan gokin eno kokino fuyo kako system ka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the creation of new industries and for their expansion to the consumer market, efforts are made to develop laser-aided technology of bonding titanium with other metals and CAD/CAM (computer-aided design/computer-aided manufacture)-aided technology of high-precision multidimensional laser machining for titanium. In the development of technology for bonding titanium and other metals, combinations of titanium and stainless steel and titanium and copper are examined, and a dissimilar metal joint is successfully manufactured, free of cracks at a tension shear strength level of approximately 4200N/40mm and shear stress of 200MPa or higher. In the study of the mechanism of bonding, it is found that a sound weld metal is created with the formation of intermetallic compounds well inhibited by allowing titanium to be on the upper surface. In the study of laser-aided titanium cutting, a dross-free cutting process is realized by optimizing cutting conditions such as those involving laser excitation and assist gas application. Three-dimensional laser-aided cutting is carried out in compliance with a 3-dimensional laser cutting program incorporating metal pattern data, and the process is found to reduce the number of necessary dies to 1/4 to shorten and simplify the process. (NEDO)

  8. Sono, trabalho e estudo: duração do sono em estudantes trabalhadores e não trabalhadores Sleep, work, and study: sleep duration in working and non-working students

    Directory of Open Access Journals (Sweden)

    Érico Felden Pereira

    2011-05-01

    Full Text Available Este estudo objetivou investigar a duração do sono e fatores associados em escolares trabalhadores e não trabalhadores. Foram coletadas informações sobre o padrão do ciclo vigília/sono de 863 adolescentes de 10 a 19 anos em escolas de São Paulo, Brasil. Análises ajustadas foram aplicadas para comparação da duração do sono entre trabalhadores e não trabalhadores. O porcentual de adolescentes trabalhadores foi de 18,4% e 52% dos jovens que trabalhavam apresentaram oito ou menos horas de sono. A prevalência de baixa duração do sono foi maior nos trabalhadores dos sexos masculino (p = 0,017 e feminino (p The aim of this study was to investigate the duration of sleep and associated factors in working and non-working students. Data were analyzed on the sleep-wake cycle in 863 teenage students in São Paulo, Brazil. Adjusted analyses were performed to compare sleep duration in working and non-working students. 18.4% of the group worked, and 52% of the working students slept eight hours or less per night. Prevalence of short sleep duration was higher in working students of both sexes (males, p = 0.017; females, p < 0.001. Working students showed short sleep duration in the analysis adjusted for socioeconomic status, but short sleep was more frequent in older adolescents (p = 0.004 and in lower (p = 0.001 and middle (p = 0.011 socioeconomic classes. Although more working students were in night school, in the model adjusted for gender and socioeconomic status, working students in afternoon courses showed higher prevalence of short sleep duration (PR = 2.53; 95%CI: 1.68-4.12.

  9. QUALIDADE DE SONO E SUA ASSOCIAÇÃO COM SINTOMAS PSICOLÓGICOS EM ATLETAS ADOLESCENTES

    Directory of Open Access Journals (Sweden)

    Gabriel Cordeiro Gomes

    Full Text Available RESUMO Objetivo: Verificar a prevalência de má qualidade de sono e sua associação com características pessoais e sintomas de depressão, ansiedade e estresse em adolescentes atletas amadores. Métodos: Foram avaliados 309 adolescentes atletas, entre 10 e 19 anos. Para a coleta de dados foram utilizados: questionário estruturado, contendo informações pessoais; Índice de Qualidade do Sono de Pittsburgh (PSQI; e Escala de Ansiedade, Depressão e Stress de 21 itens (EADS-21. Na análise descritiva foram calculados a média e o desvio padrão das variáveis numéricas e as frequências absolutas e relativas das variáveis categóricas. Para a análise inferencial foram realizados teste t de Student e teste do qui-quadrado, além de regressão de Poisson, sendo calculadas as razões de prevalência (RP em um intervalo de confiança de 95% (IC95%. Resultados: A média de idade dos participantes foi de 14,1±2,1, sendo 13,8±2,0 para o grupo de adolescentes com boa qualidade do sono e 15,0±2,1 para o grupo com má qualidade do sono. A má qualidade do sono foi registrada em 28,2% (n=87, a depressão, em 26,9% (n=83 e a ansiedade/estresse, em 40,1% (n=124 da amostra. A má qualidade do sono se associou à faixa etária de 15 a 19 anos (RP 1,24; IC95% 1,14-1,37, a adolescentes com sobrepeso (RP 1,12; IC95% 1,01-1,24 e com sintomas de depressão (RP 1,23; IC95% 1,08-1,40 e de ansiedade/estresse (RP 1,16; IC95% 1,04-1,28. Conclusões: A presença de sobrepeso e sintomas psicológicos, bem como a idade superior a 15 anos, se mostraram fatores de risco para aumentar a chance da má qualidade do sono em adolescentes atletas.

  10. Distúrbios do sono em adultos de uma cidade do Estado de São Paulo

    Directory of Open Access Journals (Sweden)

    Everton Alex Carvalho Zanuto

    2015-03-01

    Full Text Available OBJETIVO: Analisar a ocorrência de distúrbios relacionados ao sono entre adultos de Presidente Prudente, São Paulo, bem como identificar suas associações com variáveis comportamentais, sociodemográficas e de estado nutricional. MÉTODOS: Após a seleção aleatória da amostra, foram realizadas entrevistas face a face com 743 adultos de ambos os sexos, residentes na cidade de Presidente Prudente, São Paulo. Foram aplicados questionários para análise de distúrbios relacionados ao sono, variáveis sociodemográficas (sexo, idade, etnia, escolaridade, comportamentais (atividade física no lazer, etilismo e tabagismo e de estado nutricional. RESULTADOS: Foram observados distúrbios relacionados ao sono em 46,7% da amostra, com intervalo de confiança de 95% (IC95% 43,1 - 50,2. Após a análise multivariada, foi observado que o sexo feminino, com odds ratio (OR = 1,74 (IC95% 1,26 - 2,40, escolaridade (OR = 0,49; IC95% 0,28 - 0,82, sobrepeso (OR = 1,99; IC95% 1,39 - 2,85 e obesidade (OR = 2,90; IC95% 1,94 - 4,35 foram associados à ocorrência de distúrbios relacionados ao sono. CONCLUSÃO: É elevada a ocorrência de distúrbios de sono na amostra analisada, os quais foram mais frequentes em mulheres, pessoas de menor escolaridade e com sobrepeso e obesidade.

  11. Hábitos do sono, estresse e ansiedade de crianças com bruxismo

    OpenAIRE

    Mariana Fernandes Calderan

    2015-01-01

    Ainda não existe consenso sobre os aspectos etiológicos e sinais e sintomas do bruxismo, especialmente em crianças. Poucas são as evidências que demonstraram a relação entre estresse, ansiedade e bruxismo. Além disso, a força de mordida pode ser alterada em pacientes com este tipo de manifestação. O presente estudo teve por objetivos avaliar a relação do bruxismo com: ansiedade, estresse, hábitos do sono, força máxima de mordida, a presença de sinais de DTM, características morfológicas e fun...

  12. estudo comparativo entre sujeitos com boa e má qualidade do sono

    OpenAIRE

    Vicente, Sónia Lisete Pacheco

    2009-01-01

    Dissertação de Mestrado apresentada à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Psicologia, especialização em Psicologia Clínica e da Saúde. Resumo: O Sono é um bem precioso, indispensável a um bom equilíbrio. A vida de cada pessoa é uma série de ritmos que influenciam e regulam a função fisiológica e as respostas comportamentais. Desde muito cedo, é possível transmitir às crianças o prazer de dormir e os bons hábitos. Isto é quase g...

  13. Usefulness of sono-guided needle puncture for MR arthrography of the shoulder

    International Nuclear Information System (INIS)

    Choi, Jae Woong; Hong, Suk Ju; Suh, San Il; Yong, Hwan Suk; Kim, Jung Hyuk; Park, Cheol Min; Suh, Won Hyuck; Kim, Myung Gyu

    2000-01-01

    To evaluate the usefulness of sono-guided needle puncture for MR arthrography of the shoulder to locate the path of access and to control the correct placement of the needle into the shoulder. Fifteen patients with suspicion of shoulder pathology were included in this study. Patients were laid in supine positions with the arm extended and slightly abducted, the palm of the hand facing upward. A sonographic unit with a high resolution transducer with 7.5 MHz linear array was used. Axial images in the anterior aspect of the shoulder were obtained to localize the coracoid process and the anteromedical portion of the humerus. Using an aseptic technique, a 21-guage needle was advanced into the shoulder joint under ultrasonographic guidance. When the needle made contract with the articular cartilage of the humeral head, the needle was tiled to position is point in the articular cavity. Solution of 0.1 ml gadopentetate dimeglumine in 25 ml of normal saline was prepared and 12-16 ml was injected into the joint cavity. The intra-articular position of the needle and the compete distension of the shoulder joint were again confirmed by sonography. The needle was accurately placed in 14 out of 15 patients without damage to neighboring structures. It took 10 to 15 minutes to complete the procedure in 14 patients. No side effects attributable to gadopentetate dimeglumine were found. Sono-guided needle puncture for the shoulder MR arthrography can be a substitutable method for fluoroscopic guidance, with easy access, advantages of lacking radiation hazard and eliminating the need for iodized contrast agents.

  14. Clinical utility of a microbubble-enhancing contrast (“SonoVue”) in treatment of uterine fibroids with high intensity focused ultrasound: A retrospective study

    International Nuclear Information System (INIS)

    Peng, Song; Xiong, Yu; Li, Kequan; He, Min; Deng, Yongbin; Chen, Li; Zou, Min; Chen, Wenzhi; Wang, Zhibiao; He, Jia

    2012-01-01

    Purpose: To evaluate the clinical value of the contrast agent SonoVue in the treatment of uterine fibroids with ultrasound-guided high intensity focused ultrasound (HIFU) therapeutic ablation. Materials and Methods: A total of 291 patients with solitary uterine fibroid from three centers were treated with ultrasound-guided HIFU. Among them, 129 patients from Suining Central Hospital of Sichuan were treated without using SonoVue. 162 patients from the First Hospital of Chongqing Medical University and Chongqing Haifu Hospital were treated with using SonoVue before, during and after HIFU procedure to assess the extent of HIFU. Results: The non-perfused volume (indicative of successful ablation) was observed in all treated uterine fibroids immediately after HIFU ablation; median fractional ablation, defined as non-perfused volume divided by the fibroid volume immediately after HIFU treatment, was 86.0% (range, 28.8–100.0%) in the group with using SonoVue, and 83.0% (8.7–100.0%) without SonoVue. The rate of massive gray scale changes was higher with SonoVue than without the agent. The sonication time to achieve massive gray scale changes was shorter with SonoVue than without. The sonication time for ablating 1 cm 3 of fibroid volume was significantly shorter with using SonoVue than without. No major complications were observed in any patients. Conclusions: Based on our results, SonoVue may enhance the outcome of HIFU ablation and can be used to assess the extent of treatment.

  15. Optimized ONO thickness for multi-level and 2-bit/cell operation for wrapped-select-gate (WSG) SONOS memory

    International Nuclear Information System (INIS)

    Wu, Woei-Cherng; Chao, Tien-Sheng; Yang, Tsung-Yu; Peng, Wu-Chin; Yang, Wen-Luh; Chen, Jian-Hao; Ma, Ming Wen; Lai, Chao-Sung; Lee, Chien-Hsing; Hsieh, Tsung-Min; Liou, Jhyy Cheng; Chen, Tzu Ping; Chen, Chien Hung; Lin, Chih Hung; Chen, Hwi Huang; Ko, Joe

    2008-01-01

    In this paper, highly reliable wrapped-select-gate (WSG) silicon–oxide–nitride–oxide–silicon (SONOS) memory cells with multi-level and 2-bit/cell operation have been successfully demonstrated. The source-side injection mechanism for WSG-SONOS memory with different ONO thickness was thoroughly investigated. The different programming efficiencies of the WSG-SONOS memory under different ONO thicknesses are explained by the lateral electrical field extracted from the simulation results. Furthermore, multi-level storage is easily obtained, and good V TH distribution presented, for the WSG-SONOS memory with optimized ONO thickness. High program/erase speed (10 µs/5 ms) and low programming current (3.5 µA) are used to achieve the multi-level operation with tolerable gate and drain disturbance, negligible second-bit effect, excellent data retention and good endurance performance

  16. Fonoaudiologia X ronco/apneia do sono Speech therapy and snore and sleep apnea

    Directory of Open Access Journals (Sweden)

    Elisângela Barros Soares

    2010-04-01

    Full Text Available TEMA: sendo o sono necessário para termos energia, o ronco e a apneia do sono tornam-se obstáculos que acarretam problemas de saúde, como também problemas sociais, conjugais, escolares, entre outros. OBJETIVO: contribuir para um maior conhecimento do profissional fonoaudiólogo sobre as causas, consequências, diagnóstico e formas de tratamento da apneia obstrutiva do sono (AOS, a fim de favorecer a definição da conduta por este profissional, seja ela, encaminhar para um diagnóstico, tratar (por meio de fonoterapia essa patologia ou indicar o tratamento médico, seja ele, cirúrgico ou conservador. CONCLUSÃO: as possíveis alterações fonoaudiológicas encontradas nestes pacientes são: língua alargada apresentando hipotonia, palato mole com volume aumentado, dificuldade na alimentação devido ao aporte insuficiente de ar e ao bruxismo, possivelmente causado pela tensão e ansiedade decorrentes das noites mal dormidas. Outras alterações podem ser encontradas decorrentes do tratamento cirúrgico empregado em alguns casos, como a disfagia ou até mesmo alterações na fala e na ressonância da fala decorrente de uma uvulopalatoplastia. O enfoque do tratamento fonoaudiológico é a mioterapia dos músculos envolvidos, priorizando a musculatura palatal. Percebe-se que o fonoaudiólogo pode contribuir para amenizar os sintomas encontrados nestas patologias, proporcionando uma qualidade de vida melhor aos seus portadores.BACKGROUND: sleeping is necessary to provide us with energy. However, snoring and sleep apnea become obstacles that cause not only health problems, but also social, marital and educational issues. PURPOSE: contribute with a better understanding of the causes to the speech therapist, as well as the diagnosis and forms of treatment for Obstructive Sleep Apnea (OSA. Facilitate the definition of conduct by the therapist, be it a guide for a diagnosis, a treatment for that disease (through speech therapy or the indication of

  17. TEMPO DE TELA, PERCEPÇÃO DA QUALIDADE DE SONO E EPISÓDIOS DE PARASSONIA EM ADOLESCENTES

    OpenAIRE

    Silva, Alison Oliveira da; Oliveira, Luciano Machado Ferreira Tenório de; Santos, Marcos André Moura dos; Tassitano, Rafael Miranda

    2017-01-01

    RESUMO Introdução: O sono é um importante componente no processo de desenvolvimento biológico e mental das crianças e dos adolescentes, considerado fonte de revitalização das funções orgânicas. Objetivo: Analisar a associação entre o tipo e tempo de exposição à tela, a percepção da qualidade de sono e os episódios de parassonia em adolescentes. Métodos: Estudo transversal que incorpora um levantamento epidemiológico de base escolar com amostra representativa (n = 481) de estudantes (14 a 1...

  18. Sonolência excessiva diurna, apnéia do sono tipo central e distrofia miotônica

    Directory of Open Access Journals (Sweden)

    Rubens Reimão

    1985-12-01

    Full Text Available São relatados dois casos de distrofia miotônica acompanhada de sonolência excessiva diurna. A avaliação polissonográfica de noite inteira revelou grande número de apnéias do sono tipo central deflagrando despertares freqüentes. As apnéias dos tipos obstrutivo e misto ocorreram em níveis normais e não se constatou hipoxia. Houve diminuição da eficiência do sono e redução dos estágios 3, 4 e REM. A apnéia central e a sonolência diurna que acarreta representariam manifestações precoces do comprometimento do sistema nervoso central na distrofia miotônica.

  19. Sono-elastography for Differentiating Benign and Malignant Cervical Lymph Nodes: A Systematic Review and Meta-Analysis

    Science.gov (United States)

    Ghajarzadeh, Mahsa; Mohammadifar, Mehdi; Azarkhish, Kamran; Emami-Razavi, Seyed Hassan

    2014-01-01

    We did this systematic review to determine diagnostic accuracy of sono-elastography in evaluating cervical lymph nodes (LNs). A highly sensitive search for sono-elastography and LNs was performed in MEDLINE, Cochrane Library, ACP Journal Club, EMBASE, Health Technology assessment, and ISI web of knowledge for studies published prior to December 2012. SPSS version 18 (SPSS Inc., Chicago, IL, USA) used for descriptive analysis and meta-disk version 1.4 applied for meta-analysis. Forest plots for pooled estimates and summery of receiver operating characteristic plots for different cut-offs were produced. The literature and manual search yielded 69 articles, of which 10 were eligible to include. A total of 578 individuals with a total number of 936 cervical LNs was evaluated (502 malignant and 434 benign). The summary sensitivity of the scoring and strain ratio (SR) measurements for the differentiation of benign and malignant LNs were 0.76 (95% CI: 0.71–0.8) and 0.83 (95% CI: 0.78–0.87). The summary specificities were 0.8 (95% confidence interval [CI]: 0.75–0.84) and 0.84 (95% CI: 0.79–0.88), respectively. Area under the curve for scoring system was 0.86 (standard error [SE] = 0.03) and 0.95 (SE = 0.02) for SR measurement. Sono-elastograohy has high accuracy in differentiating benign and malignant cervical LNs. PMID:25709787

  20. Sono-elastography for Differentiating Benign and Malignant Cervical Lymph Nodes: A Systematic Review and Meta-Analysis.

    Science.gov (United States)

    Ghajarzadeh, Mahsa; Mohammadifar, Mehdi; Azarkhish, Kamran; Emami-Razavi, Seyed Hassan

    2014-12-01

    We did this systematic review to determine diagnostic accuracy of sono-elastography in evaluating cervical lymph nodes (LNs). A highly sensitive search for sono-elastography and LNs was performed in MEDLINE, Cochrane Library, ACP Journal Club, EMBASE, Health Technology assessment, and ISI web of knowledge for studies published prior to December 2012. SPSS version 18 (SPSS Inc., Chicago, IL, USA) used for descriptive analysis and meta-disk version 1.4 applied for meta-analysis. Forest plots for pooled estimates and summery of receiver operating characteristic plots for different cut-offs were produced. The literature and manual search yielded 69 articles, of which 10 were eligible to include. A total of 578 individuals with a total number of 936 cervical LNs was evaluated (502 malignant and 434 benign). The summary sensitivity of the scoring and strain ratio (SR) measurements for the differentiation of benign and malignant LNs were 0.76 (95% CI: 0.71-0.8) and 0.83 (95% CI: 0.78-0.87). The summary specificities were 0.8 (95% confidence interval [CI]: 0.75-0.84) and 0.84 (95% CI: 0.79-0.88), respectively. Area under the curve for scoring system was 0.86 (standard error [SE] = 0.03) and 0.95 (SE = 0.02) for SR measurement. Sono-elastograohy has high accuracy in differentiating benign and malignant cervical LNs.

  1. [Studies on the degradation of paracetamol in sono-electrochemical oxidation].

    Science.gov (United States)

    Dai, Qi-Zhou; Ma, Wen-Jiao; Shen, Hong; Chen, Jun; Chen, Jian-Meng

    2012-07-01

    A novel lead dioxide electrodes co-doped with rare earth and polytetrafluoroethylene (PTFE) were prepared by the electrode position method and applied as anodes in sono-electrochemical oxidation for pharmaceutical wastewater degradation. The results showed that the APAP removal and the mineralization efficiency reached an obvious increase, which meant that the catalytic efficiency showed a significant improvement in the use of rare-earth doped electrode. The effects of process factors showed that the condition of the electrode had the best degradation efficiency with doped with Ce2O3 under electrolyte concentration of 14.2 g x L(-1), 49.58 W x cm(-2), 50 Hz, pH = 3, 71.43 mA x cm(-2). The APAP of 500 mg x L(-1) removal rate reached 92.20% and its COD and TOC values declined to 79.95% and 58.04%, the current efficiency reached 45.83% after degradation process for 2.0 h. The intermediates were monitored by the methods of GC-MS, HPLC, and IC. The main intermediates of APAP were p-benzoquinone, benzoic acid, acetic acid, maleic acid, oxalic acid, formic acid etc, and the final products were carbon dioxide and water. The goal of completely degradation of pollutant was achieved and a possible degradation way was proposed.

  2. Multi-objective optimization of oxidative desulfurization in a sono-photochemical airlift reactor.

    Science.gov (United States)

    Behin, Jamshid; Farhadian, Negin

    2017-09-01

    Response surface methodology (RSM) was employed to optimize ultrasound/ultraviolet-assisted oxidative desulfurization in an airlift reactor. Ultrasonic waves were incorporated in a novel-geometry reactor to investigate the synergistic effects of sono-chemistry and enhanced gas-liquid mass transfer. Non-hydrotreated kerosene containing sulfur and aromatic compounds was chosen as a case study. Experimental runs were conducted based on a face-centered central composite design and analyzed using RSM. The effects of two categorical factors, i.e., ultrasound and ultraviolet irradiation and two numerical factors, i.e., superficial gas velocity and oxidation time were investigated on two responses, i.e., desulfurization and de-aromatization yields. Two-factor interaction (2FI) polynomial model was developed for the responses and the desirability function associate with overlay graphs was applied to find optimum conditions. The results showed enhancement in desulfurization ability corresponds to more reduction in aromatic content of kerosene in each combination. Based on desirability approach and certain criteria considered for desulfurization/de-aromatization, the optimal desulfurization and de-aromatization yields of 91.7% and 48% were obtained in US/UV/O 3 /H 2 O 2 combination, respectively. Copyright © 2017 Elsevier B.V. All rights reserved.

  3. Oxidative degradation of phenols in sono-Fenton-like systems upon high-frequency ultrasound irradiation

    Science.gov (United States)

    Aseev, D. G.; Sizykh, M. R.; Batoeva, A. A.

    2017-12-01

    The kinetics of oxidative degradation of phenol and chlorophenols upon acoustic cavitation in the megahertz range (1.7 MHz) is studied experimentally in model systems, and the involvement of in situ generated reactive oxygen species (ROSs) is demonstrated. The phenols subjected to high frequency ultrasound (HFUS) are ranked in terms of their rate of conversion: 2,4,6-trichlorophenol > 2,4-dichlorophenol 2-chlorophenol > 4-chlorophenol phenol. Oxidative degradation upon HFUS irradiation is most efficient at low concentrations of pollutants, due to the low steady-state concentrations of the in situ generated ROSs. A dramatic increase is observed in the efficiency of oxidation in several sonochemical oxidative systems (HFUS in combination with other chemical oxidative factors). The system with added Fe2+ (a sono-Fenton system) derives its efficiency from hydrogen peroxide generated in situ as a result of the recombination of OH radicals. The S2O8 2-/Fe2+/HFUS system has a synergetic effect on substrate oxidation that is attributed to a radical chain mechanism. In terms of the oxidation rates, degrees of conversion, and specific energy efficiencies of 4-chlorophenol oxidation based on the amount of oxidized substance per unit of expended energy the considered sonochemical oxidative systems form the series HFUS < S2O8 2-/HFUS < S2O8 2-/Fe2+/HFUS.

  4. IMPLICAÇÕES DOS DISTÚRBIOS RESPIRATÓRIOS DO SONO EM ALUNOS COM DEFICIÊNCIA INTELECTUAL: REVISÃO SISTEMÁTICA

    Directory of Open Access Journals (Sweden)

    Miriam Adalgisa Bedim Godoy

    2017-06-01

    Full Text Available Nos últimos anos, as pesquisas sobre os distúrbios respiratórios do sono em crianças e adolescentes com desenvolvimento típico têm ampliado. As pesquisas constataram que o sono de má qualidade interfere nas competências físicas e intelectivas do ser humano. Como seria a influência desse distúrbio em educandos com deficiência intelectual? O estudo teve por objetivo verificar e analisar nas publicações científicas a influência dos distúrbios respiratórios do sono em escolares com deficiência intelectual. Trata-se um delineamento sistemático de cunho qualitativo. O levantamento foi realizado no período que compreende os anos de 2000 a 2016. Os artigos estavam indexados bases de dados EBSCOhost, DOAJ, ERIC e SciELO Brasil. Os descritores utilizados foram i distúrbios respiratórios do sono e dificuldade de aprendizagem; ii distúrbios respiratórios do sono e deficiência intelectual; iii distúrbios respiratórios do sono e etiologia da deficiência intelectual; iv distúrbios respiratórios do sono e déficit intelectual. A busca também foi realizada em língua inglesa, a saber: i sleep-disordered breathing and learning disability; ii sleep-disordered breathing and Intellectual disability; iii sleep-disordered breathing and Etiology intellectual disability; iv sleep-disordered breathing and Intellectual deficit. Com base nesses descritores, foram encontradas 43 pesquisas. Entretanto, considerando-se os requisitos elegidos para este estudo, apenas sete artigos compuseram o corpus final de análise. Desses, quatro eram estudos experimentais, dois de revisões de literatura e um do tipo longitudinal. As pesquisas revelaram que a influência dos distúrbios do sono junto às crianças e aos adolescentes com deficiência intelectual é recente e limitada, porém, tais distúrbios respiratórios do sono interferem significativamente na qualidade de vida, bem como nos aspectos de desenvolvimento e aprendizagem dos alunos com defici

  5. Melhora da dor, do cansaço e da qualidade subjetiva do sono por meio de orientações de higiene do sono em pacientes com fibromialgia Improvement in pain, fatigue, and subjective sleep quality through sleep hygiene tips in patients with fibromyalgia

    OpenAIRE

    Aline Cristina Orlandi; Camila Ventura; Andrea Lopes Gallinaro; Renata Alqualo Costa; Laís Verderame Lage

    2012-01-01

    OBJETIVO: Avaliar a efetividade das orientações para higiene do sono em mulheres portadoras de fibromialgia. MATERIAIS E MÉTODOS: Setenta mulheres completaram o estudo. Na avaliação foram aplicados o Questionário de Impacto da Fibromialgia(FIQ), o Índice de Qualidade do Sono de Pittsburgh (PSQI) e um questionário geral, com dados pessoais e informações de hábitos de vida. Todas as pacientes receberam informações quanto à doença, além de um diário do sono, e apenas o grupo-experimental recebeu...

  6. Estudo do sono e função pulmonar em pacientes obesos mórbidos

    Directory of Open Access Journals (Sweden)

    Isabella de Carvalho Aguiar

    Full Text Available INTRODUÇÃO: A obesidade acarreta uma série de alterações na fisiologia respiratória e no sono. Seu tratamento tem como objetivo a melhora da saúde e da qualidade de vida. OBJETIVO: Avaliar a função pulmonar e o sono em indivíduos obesos mórbidos pré-cirurgia bariátrica. MATERIAIS E MÉTODOS: Participaram deste estudo 38 pacientes, recrutados em dois serviços de cirurgia bariátrica e encaminhados ao Laboratório de Sono da Universidade Nove de Julho, São Paulo, Brasil. Os critérios de inclusão foram: obesos mórbidos, IMC entre 40 kg/m² e 50 kg/m² e IMC entre 35 kg/m² a 39,9 kg/m² se associados a comorbidades. RESULTADOS: A média de idade foi de 42 ± 10, o índice de massa corpórea médio foi de 50,09 ± 7,64. A média da circunferência abdominal foi de 132,48 ±11,07 e 134,31 ± 16,26 e de pescoço foi 42,34 ± 2,08 e 44,48 ± 3,67, respectivamente para mulheres e homens. As pressões máximas inspiratórias foram 57,57 ± 18,93 e 60,6 ± 3,72 e máximas expiratórias 56,63 ± 16,68 e 60 ± 18,52, para mulheres e homens respectivamente. O sono do movimento rápido dos olhos apresentou-se com média de 16,93 ± 13,61 e a saturação mínima da oxi-hemoglobina foi de 79,33 ± 10,26 durante o sono. Em 44,74% dos casos examinados, foram observadas alterações na Escala de Sonolência de Epworth (ESE; e em 76,3% ficou confirmada a presença de síndrome da apneia obstrutiva do sono (SAOS. CONCLUSÃO: Foram observadas alterações nas pressões máximas ventilatórias, na estrutura do sono associadas a considerável dessaturação noturna da oxi-hemoglobina, o que evidencia alta prevalência de SAOS nos pacientes obesos mórbidos.

  7. Sono-electro-magnetic therapy for treating chronic pelvic pain syndrome in men: a randomized, placebo-controlled, double-blind trial.

    Science.gov (United States)

    Kessler, Thomas M; Mordasini, Livio; Weisstanner, Christian; Jüni, Peter; da Costa, Bruno R; Wiest, Roland; Thalmann, George N

    2014-01-01

    To assess the efficacy and safety of sono-electro-magnetic therapy compared to placebo in men with refractory CPPS. In a randomized, placebo-controlled, double-blind single center trial, we assessed the effect of sono-electro-magnetic therapy in men with treatment refractory CPPS. Sixty male patients were randomly assigned to treatment with either sono-electro-magnetic (n = 30) or placebo therapy (n = 30) for 12 weeks. The primary outcome was a change in the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) from baseline to 12 weeks. The 12-week difference between sono-electro-magnetic and placebo therapy in changes of the NIH-CPSI total score was -3.1 points (95% CI -6.8 to 0.6, p = 0.11). In secondary comparisons of NIH-CPSI sub-scores, we found differences between groups most pronounced for the quality-of-life sub-score (difference at 12 weeks -1.6, 95% CI -2.8 to -0.4, p = 0.015). In stratified analyses, the benefit of sono-electro-magnetic therapy appeared more pronounced among patients who had a symptom duration of 12 months or less (difference in NIH-CPSI total score -8.3, 95% CI -14.5 to 2.6) than in patients with a longer symptom duration (-0.8, 95% CI -4.6 to 3.1; p for interaction = 0.023). Sono-electro-magnetic therapy did not result in a significant improvement of symptoms in the overall cohort of treatment refractory CPPS patients compared to placebo treatment. Subgroup analysis indicates, however, that patients with a symptom-duration of 12 months or less may benefit from sono-electro-magnetic therapy, warranting larger randomized controlled trials in this subpopulation. ClinicalTrials.gov NCT00688506.

  8. FY 2000 report on the results of the research and development project for the photon-aided instrumentation and processing technologies. Development of high-efficiency production process technologies; 2000 nendo photon keisoku kako gijutsu seika hokokusho. Kokoritsu seisan process gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Described herein are the FY 2000 results of development of the photon-aided instrumentation and processing technologies, aimed at improving efficiency of the production processes which have been massively consuming energy, e.g., those for welding, joining, surface treatment and granulation for producing fine particles. The program for production of the functional composite compounds by the microscopic processing technologies prepares the electrically resistant films and dielectric films by in-situ mixing two types of the ultrafine particles. The program for the in-situ measuring technology is aimed at measuring contents of the constituent components of fine particles, 30nm or less in size, to an accuracy of 10% by the emission spectroscopy, after making them plasmatic. The program for the high-power, all-solid-state laser technology is developing the excited chamber for the high-power, all-solid-state slab type laser, in order to realize the energy-efficient laser-aided processing. The program for the tightly-focusing, all-solid-state laser technology develops the highly uniform crystals by growing the GLBO crystals for producing the high-power ultraviolet laser beams, is developing the techniques for production of the wavelength converting elements, including the GLBO crystal package, and develops the wavelength conversion method by the fourth-harmonic generation with the all-solid-state laser beams as the fundamental wave, realizing the high harmonic power of 23W, for generating the high-power ultraviolet laser beams at a high efficiency. (NEDO)

  9. FY 1996 report on the results of the R and D of advanced function creation processing technology. Development of technology for corrosion prevention of the petroleum production system; 1996 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Ti-Ni micro particle composite thick films could be synthesized using pulse evaporation type/magnetic field closed type evaporation source for both high hardness and high toughness. Corrosion resistant gradient composition thick films were obtained which change in composition from Ni to CrSi2 by on-substrate collision/serial sintering technology by micro particles produced by hybrid-plasma. The following were conducted: synthesis of micro particles by laser induction vapor phase reaction, formation of collision of airsol particles, and development of the continuous creation process of nano structure advanced materials by continuous combination of microwave sintering. As the higher-order structure control technology in the molecular beam complex reaction field, studies were made of photochemical reaction, effects of magnetic field on other-molecular reaction, and functional control technology. The molecular/higher-order structure control by photochemical reaction was an important factor for sensor function improvement of the formed thin film. Photon/pressure complex reaction field device was developed and an experiment was made on the material synthesis. The diamond/cBN solid solution synthesis, etc. were conducted and the hardness next to diamond was obtained. (NEDO)

  10. FY 1992 report on the results of the R and D of advanced function creation processing technology. Development of technology to create high efficiency power generation use members; 1992 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    The paper described the FY 1992 results of the technology to create high efficiency power generation use members. To enhance characteristics of super-high property permanent magnet up to the theoretical level, the development was proposed of a technology to control the size/configuration of micro crystal phase in association with the crystallization of alloy amorphous. For the development of environmental purification use high functional catalysts, a refining method using laser excitation was studied. The observation was also made of molecular adsorption on the Pd thin film catalyst prepared by RF sputtering. The multi-source excitation plasma CVD was proposed which was film-formed by exciting plasma as raw gas independently for each component and supplying it to the substrate of which the periphery was separately controlled. The paper also described the development of technology for ion/light combined assist ultra-thin film production for development of gas turbine combustion sensor. The study was also made of the synthesis of higher-order structure controlled high functional organic materials using the electrode interface combined field which is composed of electrode reaction/high grade photon/extreme magnetic field. In the development of the higher-order structure control technology using the photon combined reaction field, studies were made of the photo reaction film formation technology, the basic film formation technology in the combined reaction field, and the molecular orientation technology. (NEDO)

  11. Research and development project for large industrial technologies in fiscal 1992. Achievement report on research and development of an advanced function creating and processing technology (Development of a technology to prevent corrosion in petroleum production systems); 1992 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    In order to enhance durability and safety of members used in ocean bottom petroleum collecting systems, researches were made to create materials having excellent corrosion resistance, strength and heat resistance. In the research of a gas sensor to measure nature of drilled mud water, high corrosion resistance and sensitivity improvement in an infrared gas sensor was attempted through research and development of a high-purity and high-quality film forming technology. In the research of an inclination structure creating technology, researches were made on an interface control technology to enhance adhesion of substrates with ultra fine particle complexes. Developmental research was performed on materials by synthesizing the ultra fine particle complex and by injecting ions into the surface layer. In developing thick ceramics film or bulk having high functions, researches were carried out on a synthesizing technology using compound plasma, and a synthesizing technology using compound laser. In synthesizing high-function organic materials, researches were performed on a high-order structure control technology using the molecular beam compound reaction field, and on a material synthesizing technology using the photon compound reaction field and the interface compound reaction field. A compound reaction field diagnosis technology using the laser ionizing process was studied as a supporting technology. (NEDO)

  12. FY 1993 report on the results of the R and D of advanced function creation processing technology. Development of technology for corrosion prevention of the petroleum production system; 1993 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    In the study of a corrosion resistant high sensitivity gas sensor, the following two technologies are needed: decrease in impurities of materials for super-higher purity, and formation of films with physically high quality such as orientation and homogeneity. Experiments were made on laser excitation separation refining, CVD, laser ablation, super-high vacuum, etc. For the stabilized formation of high-adhesion thin/thick films, studies were carried out of the surface activation for processing substrate surface before film formation, interface counter diffusion in thin film formation process, and the technology for combination of these. The higher-order structure control of materials was attempted using the reaction field combined with the photochemical reaction by the high grade photon field, based on the molecular beam vapor-deposition technology under super-high vacuum. In the synthesis of materials by the photon combined reaction field, studies were made of the design/process of a dynamic device which reacts like pulse the photon/high pressure/strong magnetic field on carbonaceous materials and a static combined reaction field device by the stationary high pressure field. A study was commenced of a synthesis method in relation to fullerene with a new structure which has unique characteristics. (NEDO)

  13. FY 1991 Report on the results of the research and development of the processing technologies for creating advanced functions. Development of the technologies for preventing corrosion of oil production systems; 1991 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Sekiyu seisan system fushoku boshi gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    The research and development project has been started to develop the technologies for superhigh-purity separation/processing; controlling ultrafine crystal particles, including creating composites by the aid of a plasma laser; synthesizing highly functional organic materials; and supporting these technologies, for creating functions, e.g., advanced sensing functions, highly functional electromagnetic characteristics, and corrosion resistance, heat resistance and high strength. The R and D program for the technologies for superhigh-purity separation/processing covers development of highly corrosion-resistant, high-sensitivity gas sensors and highly functional thin oxide film sensors. The R and D program for controlling ultrafine crystal particles covers the researches on the technologies for creating inclined structures by the ion composite vapor-phase process, and the technologies for producing composites by the aid of a plasma laser. The R and D program for the organic material synthesis technologies includes researches on the technologies for controlling higher structures in a molecular beam composite reaction field, and on the technologies for synthesizing materials in a photon composite reaction field and in an interfacial composite reaction field. The R and D program for the supporting technologies includes the researches on the technologies for diagnosing a composite reaction field by the laser-aided ionization method. In the FY 1991, which is essentially the first year for the project, the efforts are directed to designs and construction of the required facilities, and preliminary tests. (NEDO)

  14. FY 1998 annual summary report on advanced fabrication techniques for high-melting metal-based members. Development of techniques for creating members for high-efficiency power generation; 1998 nendo koyuten kinzokukei buzai no kodo kako gijutsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The R and D programs were implemented to develop techniques for creating members of high-melting metals, having a very high melting point and potentially excellent high-temperature strength characteristics. These are expected to replace Ni-based superalloys for gas turbine members, to further increase operating temperature of the turbine. The programs were aimed to improve their high-temperature strength and toughness and hence their reliability by microscopically controlling their compositions and structures, and also aimed to improve their durability by coating them with a film capable of preventing oxidation and resisting to gas-induced corrosion to impart resistance to oxidation and corrosion to them. For the design of Nb-based solid solution alloys, it is found that dissolution of Mo at around 30 at.% or less and W at 20 at.% or less in Nb improves their high-temperature strength and toughness. For the design of high-strength Nb-based composite materials, it is found that Si-containing Nb-based composite materials, prepared by mechanical alloying, are amorphous or present in the form of solid solution of Ni supersaturated with Si. The R and D activities were also directed to development of techniques for creating Nb-based superhigh-temperature members, their evaluation, and imparting oxidation resistance to them. (NEDO)

  15. Fiscal 1994 report on results of R and D on innovative technology for producing advanced biomaterial. Technology of fixation and utilization of carbon dioxide using peptides; 1994 nendo senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu seika hokokusho. Pepuchido oyo nisanka tanso koteika yuko riyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    R and D of a material was conducted that has a function of fixation of carbon dioxide for example, by synthesizing non-natural amino acids required for the manifestation of the function, incorporating the amino acids into new bio-functional peptides to be synthesized, and fixing the peptides on a substrate. Activities were carried out in three areas, which were (1) innovative technologies for producing functional molecules: R and D concerning structural and functional design of peptides, conformational control technique, preparation of peptides with photoelectric conversion function, peptide synthesis using enzyme, and method of incorporating non-natural amino acids into peptides, (2) R and D on materialization technologies of functional molecules: formation of film onto a substrate, pattern forming technique, substrate modification technique, peptide binding reagent or linker, and development of technologies for creation of biomaterials having molecular recognition function and their stabilization. and (3) comprehensive investigation and adjustment (operation of information exchange conference and adjustment of the progress). In (2), an examination was made on the effect of polymerization on functions, for example, by fixing molecular recognition peptides in monomers and polymers on a catalyst support. (NEDO)

  16. FY 2000 report on the results of the research and development project for the photon-aided instrumentation and processing technologies. R and D of the high-performance maintenance technologies for power generation plants; 2000 nendo photon keisoku kako gijutsu seika hokokusho. Hatsuden shisetsuyo kokino maintenance gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Described herein are the FY 2000 results of development of the photon-aided instrumentation and processing technologies, as part of the R and D of the high-performance maintenance technologies for power generation plants. Production of the fine, functional circuits is studied for microscopic processing technology. The light source with variable wavelength-in a range of 2 to 5{mu}m for the solid-state laser, to measure concentration and composition of gases by the infrared absorption laser. The photon wave front compensator is being developed, to prevent disturbance-induced sensitivity deterioration for measurement of high temperature by the laser-aided ultrasonic instrumentation. The prototype of superconducting X-ray detector is developed, for high-sensitivity detection of impurities by measuring fluorescent X-ray. Development of the 10kW-class solid-state, rod-type laser is started for high-speed, high-precision laser-aided welding and cutting, and output of 11.3kW and electrical/optical conversion efficiency of 21.5% are achieved. An electrical/optical conversion efficiency of 17% is also achieved with the slab-type laser. An all-solid-state laser is being developed. It will produce high-energy pulses and high-quality beams capable of generating the beams which are converged very finely on the work with an average output power of 1KW (fundamental wave) and electrical/optical conversion efficiency of at least 20%. (NEDO)

  17. Fiscal 1993 report on results of R and D on innovative technology for producing advanced biomaterial. Peptide applied carbon dioxide fixation/effective utilization technology (First volume); 1993 nendo senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu seika hokokusho. 1. Peptide oyo nisanka tanso koteika yuko riyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Technology is being developed for preparing functional materials by synthesizing new functional peptides in which non-natural amino acid needed for the functional manifestation is introduced, and by modifying the surface of a base plate such as silica glass by using such peptides. Activities were conducted in the three areas of (1) creation of functional molecules, (2) materialization technology, and (3) comprehensive investigation and research; the activities were carried out independently and parallelly in the first two areas. In (1), design technique for the structures and functions of peptides was developed, as were conformational control technique, synthesis of peptides having optical/electronic functions, peptide synthesis by an enzyme method, and R and D on introduction of non-natural amino acid into peptides; in (2), element technologies were developed such as substrate forming technique (pattern forming and thin film forming technology), substrate modification technique, development of reagent for binding peptide onto a substrate, and R and D on creation of biomaterials having molecular recognition function and its stabilization technique. In (3), progress control in promoting themes and a meeting for exchanging information were conducted, while survey on related element technologies was systematically and comprehensively carried out. (NEDO)

  18. Fiscal 1993 report on results of R and D on innovative technology for producing advanced biomaterial. Peptide applied carbon dioxide fixation/effective utilization technology (Second volume: comprehensive investigation and research); 1993 nendo senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu seika hokokusho (sogo chosa kenkyu). 2. Peptide oyo nisanka tanso koteika yuko riyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Technology was developed for preparing functional materials by synthesizing new functional peptides in which non-natural amino acid needed for the functional manifestation was introduced, and by fixing the peptides to the surface of a base plate such as silica glass or modifying the surface with them. As the related technological investigation, the following six areas were surveyed. (1) Structural design of peptides, (2) synthesis of peptides by chemical and enzyme methods, (3) synthesis of non-natural amino acid and its introduction into peptides, (4) structural analysis of peptides, (5) physiological activity of peptides, and (6) materialization and functional manifestation of peptides. With the exception of the area (5) consisting of one advanced research case, other areas were constituted of analysis, general remarks and research cases. The area (6) was constituted of materialization technique 1 and 2, film function and peptide, catalytic action 1 and 2, and one research case; the materialization technique was defined as a technique for modifying the surface of a synthetic resin, metallic or silica glass substrate with functional peptides; and an explanation was given to the present state of the fixation, pattern formation and integration technologies. (NEDO)

  19. FY 1993 report on the results of the R and D of advanced function creation processing technology. Development of technology to create high efficiency power generation use members; 1993 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    The paper described the FY 1993 results of the technology to create high efficiency power generation use members. A processing method was proposed in which to manifest magnetic characteristics up to the theoretical value level, crystallization of magnetic alloy amorphous was controlled and size/configuration of precipitated micro-fine crystals are made ideal. For the development of environmental purification use high functional catalysts, experiments were conducted on the heightening of purity of materials. Namely, by the two wavelength two stage excitation method using color laser, atomic beams of the material metal emitted by electronic beam evaporating source are photo-excited up near the ionization level. These are separated from the non-ionized components by electrostatic field application, and only the ionized atoms are vapor-deposited on substrate. The separation accuracy was good. Plasma excitation of raw gas was done independently for every component, and the multi-source excitation plasma CVD was proposed which is film-formed on the substrate of which the periphery was separately controlled. The synthesis method was considered of higher-order structure control high functional organic materials which are composed of electrode reaction/high grade photon/extreme magnetic field. Study was made of complex reaction field application film-forming/molecular orientation technology using a small test device. (NEDO)

  20. FY 1993 report on the results of the R and D of advanced function creation processing technology. Development of technology to create high efficiency power generation use members; 1993 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    The paper described the FY 1993 results of the technology to create high efficiency power generation use members. A processing method was proposed in which to manifest magnetic characteristics up to the theoretical value level, crystallization of magnetic alloy amorphous was controlled and size/configuration of precipitated micro-fine crystals are made ideal. For the development of environmental purification use high functional catalysts, experiments were conducted on the heightening of purity of materials. Namely, by the two wavelength two stage excitation method using color laser, atomic beams of the material metal emitted by electronic beam evaporating source are photo-excited up near the ionization level. These are separated from the non-ionized components by electrostatic field application, and only the ionized atoms are vapor-deposited on substrate. The separation accuracy was good. Plasma excitation of raw gas was done independently for every component, and the multi-source excitation plasma CVD was proposed which is film-formed on the substrate of which the periphery was separately controlled. The synthesis method was considered of higher-order structure control high functional organic materials which are composed of electrode reaction/high grade photon/extreme magnetic field. Study was made of complex reaction field application film-forming/molecular orientation technology using a small test device. (NEDO)

  1. Fiscal 1999 achievement report. Important regional technology research and development--Advanced machining technology for high-melting point metal based members (Development of creating technology for high-efficiency power generating members); 1999 nendo koyuten kinzokukei buzai no kodo kako gijutsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Research and development is conducted concerning technologies of creating high-melting point metal based members for the purpose of enabling gas turbines to withstand still higher temperatures. In the research which deals mainly with Nb, solid solution state is enhanced, high-temperature strength and tenacity are improved by enhanced composition and diffusion, and surfaces are modified in terms of resistance to oxidation and corrosion by the technologies of multi-layer coating and slope-structured coating. In the designing and evaluation of high-strength Nb based solid solution alloys, alloys excellent in high-temperature strength and room-temperature tenacity are obtained, which contain 5-30at% Mo and 5-15at% W. In the designing and evaluation of Nb based composite materials, it is found that it strengthens the composition of Nb based enhanced solid solution alloys to add Si to Nb alloys for the precipitation of silicides in the Nb based solid solution alloy matrices. In the study of the creation technology for and evaluation of Nb based ultrahigh-temperature members, experiments are conducted with attention focused on the discharge plasma sintering method. In the development of technologies for providing oxidation resisting capability, studies are conducted about ion implantation and ion plating. (NEDO)

  2. FY 1992 report on the results of the R and D of advanced function creation processing technology. Development of technology to create high efficiency power generation use members; 1992 nendo senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    The paper described the FY 1992 results of the technology to create high efficiency power generation use members. To enhance characteristics of super-high property permanent magnet up to the theoretical level, the development was proposed of a technology to control the size/configuration of micro crystal phase in association with the crystallization of alloy amorphous. For the development of environmental purification use high functional catalysts, a refining method using laser excitation was studied. The observation was also made of molecular adsorption on the Pd thin film catalyst prepared by RF sputtering. The multi-source excitation plasma CVD was proposed which was film-formed by exciting plasma as raw gas independently for each component and supplying it to the substrate of which the periphery was separately controlled. The paper also described the development of technology for ion/light combined assist ultra-thin film production for development of gas turbine combustion sensor. The study was also made of the synthesis of higher-order structure controlled high functional organic materials using the electrode interface combined field which is composed of electrode reaction/high grade photon/extreme magnetic field. In the development of the higher-order structure control technology using the photon combined reaction field, studies were made of the photo reaction film formation technology, the basic film formation technology in the combined reaction field, and the molecular orientation technology. (NEDO)

  3. Apneia obstrutiva do sono em crianças Obstructive sleep apnea in children

    Directory of Open Access Journals (Sweden)

    Simone Chaves Fagondes

    2010-06-01

    Full Text Available Em crianças, SAOS é caracterizada por episódios recorrentes de obstrução parcial ou completa das vias aéreas superiores durante o sono. Caracteriza-se por um continuum que vai desde o ronco primário (uma situação benigna de ronco sem alterações fisiológicas e complicações associadas, passando por resistência aumentada das vias aéreas, hipoventilação obstrutiva e, finalmente, SAOS. A prevalência de ronco é elevada e, dependendo da forma como ele é definido, varia entre 1,5% e 15%. O diagnóstico da SAOS, combinando questionários de relatos dos pais e exames complementares, apresenta uma prevalência de 1-4%. A SAOS é mais frequente nos meninos, nas crianças com sobrepeso, de ascendência africana, com história de atopia e prematuridade. Ronco alto e frequente, apneias observadas pelos familiares e sono agitado são os sintomas mais frequentes. O exame físico deve identificar a situação ponderostatural do paciente, avaliar evidências de obstrução crônica das vias aéreas superiores e ainda verificar a presença de alterações craniofaciais. A polissonografia de noite inteira é o exame padrão tanto para o diagnóstico, como para a definição da pressão necessária em equipamentos de pressão positiva e também para a avaliação do tratamento cirúrgico. A hipóxia intermitente e os múltiplos despertares resultantes dos eventos obstrutivos contribuem para as consequências cardiovasculares, neurocognitivas e comportamentais bem descritos nesses pacientes. A adenoamigdalectomia é o principal tratamento para a SAOS em crianças. O uso da pressão positiva nas vias aéreas (CPAP ou Bilevel é outra opção de uso crescente na população pediátrica.Childhood obstructive sleep apnea syndrome (OSAS is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep. The disease encompasses a continuum from primary snoring (a benign condition without physiological alterations or

  4. Sleep apnea and REM sleep behavior disorder in patients with Chiari malformations Apnéia do sono e distúrbio do comportamento da fase do sono com REM em pacientes com malformações de Chiari

    Directory of Open Access Journals (Sweden)

    Paulo Sérgio A. Henriques-Filho

    2008-06-01

    Full Text Available BACKGROUND: Chiari malformations (CM may result in the appearance of REM sleep behavior disorder (RBD and sleep apnea syndrome (SAS that can be considered markers of brain stem dysfunction. PURPOSE: To evaluate the frequency of RBD and SAS in patients with CM type I and II. METHOD: Were evaluated 103 patients with CM by means of full night polysomnography. Were scoring different sleep stages, frequency of abnormal movements (through video monitoring and abnormal respiratory events. RESULTS: Of the 103 patients, 36 showed CM type I and 67 CM type II. Episodes of RBD were observed in 23 patients. Abnormal apnea-hypopnea index (AHI was observed in 65 patients. CONCLUSION: The high rate of RBD suggests that this parassomnia and the increased frequency of central sleep apnea episodes, may be considered as a marker of progressive brain stem dysfunction.INTRODUÇÃO: Malformações de Chiari (MC podem gerar o aparecimento de distúrbio comportamental da fase do sono com REM (DCR e síndrome da apnéia do sono (SAS, sugerindo a ocorrência de disfunção do tronco cerebral. OBJETIVO: Avaliar a freqüência de DCR e SAS em pacientes com MC I ou II. MÉTODO: Utilizou-se a polissonografia de noite inteira para a avaliação de 103 pacientes. Classificaram-se as diferentes fases do sono e analisou-se a freqüência de movimentos anormais (monitorada por vídeo e de eventos respiratórios anormais. RESULTADOS: Dos 103 pacientes analisados, 36 eram portadores de MC I e 67 de MC II. Episódios de DCR foram observados em 23 pacientes. O índice de apnéia/hipopnéia foi considerado anormal em 65 pacientes. CONCLUSÃO: A alta freqüência de DCR e o aumento da freqüência de episódios de apnéia central do sono podem ser considerados manifestação de disfunção progressiva do tronco cerebral.

  5. Morbilidade psicológica, qualidade do sono, e suporte social nos portadores de diabetes mellitus tipo 2

    OpenAIRE

    Costa, Elisabete Miranda Gomes

    2013-01-01

    Para levar a cabo este estudo foram aplicados além de um Questionário Sócio – Demográfico, (adaptada da versão de Sousa & McIntyre , 2002) para caracterização da amostra; a Escala Hospitalar de Ansiedade Depressão (HADS), (Zigmond & Snaith, 1983;versão portuguesa adaptada por Pais-Ribeiro, Silva, Ferreira, Martins, Meneses & Baltar,2007) para avaliar os índices de ansiedade e depressão; Índice de Qualidade do Sono Pittsburgh (PSQI) (Buysse, Reynolds, Monk, Berman & Kupfer, 1989; versão portug...

  6. The relationship between shift work and sleep patterns in nurses Relação entre trabalho por turnos e padrões de sono em enfermeiros

    Directory of Open Access Journals (Sweden)

    Manuel Fernando dos Santos Barbosa

    2013-03-01

    Full Text Available The scope of this study was to evaluate the sleep/wake cycle in shift work nurses, as well as their sleep quality and chronotype. The sleep/wake cycle was evaluated by keeping a sleep diary for a total of 60 nurses with a mean age of 31.76 years. The Horne & Östberg Questionnaire (1976 for the chronotype and the Pittsburgh Sleep Quality Index (PSQI for sleep quality were applied. The results revealed a predominance of indifferent chronotypes (65.0%, followed by moderately evening persons (18.3%, decidedly evening persons (8.3%, moderately morning persons (6.6% and decidedly morning persons (1.8%. The sleep quality perception was analyzed by the visual analogical scale, showing a mean score of 5.85 points for nighttime sleep and 4.70 points for daytime sleep, which represented a statistically significant difference. The sleep/wake schedule was also statistically different when considering weekdays and weekends. The PSQI showed a mean of 7.0 points, characterizing poor sleep quality. The results showed poor sleep quality in shift work nurses, possibly due to the lack of sport and shift work habits.Este estudo teve como objectivo analisar o ciclo vigília-sono em enfermeiros que trabalham por turnos, bem como a qualidade do sono e cronótipo. O ciclo vigília-sono foi avaliado através do diário de sono, num total de 60 enfermeiros, com idade média de 31.76 anos. Para o cronótipo utilizou-se o Questionário de Horne e Östberg, de 1976, e para medir a qualidade de sono calculou-se o Índice Qualidade de Sono de Pittsburg (PSQI. Os resultados do cronótipo mostraram uma predominância para tipo indiferente (65.0%, seguido do tipo Moderamente Vespertinos (18.3%, Definitivamente Vespertino (8.3%, Moderadamente Matutinos (6.6% e Definitivamente Matutinos (1.8%. A percepção da qualidade do sono autorreportada pela Escala Analógica Visual (VAS foi de 5.85 pontos, em média, para o sono nocturno e 4.70 para o sono diurno, diferen

  7. Efeito de uma sessão de treinamento de força sobre a qualidade do sono de adolescentes

    OpenAIRE

    Santiago, Ladyodeyse da Cunha Silva; Lyra, Maria Julia; Cunha Filho, Moacyr; Cruz, Pedro Weldes da Silva; Santos, Marcos André Moura dos; Falcão, Ana Patrícia Siqueira Tavares

    2015-01-01

    INTRODUÇÃO: o sono é uma função biológica fundamental para a conservação da energia e a restauração do metabolismo energético.OBJETIVO: analisar o efeito de uma sessão do treinamento de força realizada em diferentes horários sobre a qualidade do sono de adolescentes e examinar se a relação entre a melhoria da qualidade do sono e o horário da sessão de treino se altera após o ajuste para idade.MÉTODOS: participaram do estudo seis estudantes do sexo masculino moradores internos do IFPE - Campus...

  8. Avaliação de um modelo de predição para apneia do sono em pacientes submetidos a polissonografia

    OpenAIRE

    Musman,Silvio; Passos,Valéria Maria de Azeredo; Silva,Izabella Barreto Romualdo; Barreto,Sandhi Maria

    2011-01-01

    OBJETIVO: Testar um modelo de predição para apneia do sono a partir de variáveis sociodemográficas e clínicas em uma população com suspeita de distúrbio do sono e submetida à polissonografia. MÉTODOS: Foram incluídos no estudo 323 pacientes consecutivos submetidos à polissonografia por suspeita clínica de distúrbio do sono. Utilizou-se um questionário com questões sociodemográficas e a escala de sonolência de Epworth. Foram medidos pressão arterial, peso, altura e SpO2. A regressão linear múl...

  9. ÍNDICE DA QUALIDADE DO SONO DE PITTSBURGH PARA USO NA REABILITAÇÃO CARDIOPULMONAR E METABÓLICA

    Directory of Open Access Journals (Sweden)

    Pablo Antonio Bertasso de Araujo

    2015-12-01

    Full Text Available Introdução A qualidade do sono constitui-se em parâmetro relevante na avaliação da saúde em geral, sendo um fator relevante na determinação do risco das doenças cardiovasculares. Objetivo Validar a versão adaptada do questionário de avaliação do Índice de Qualidade do Sono de Pittsburgh (PSQI para uso em programas de reabilitação cardiopulmonar e metabólica (RCPM. Métodos Estudo descritivo transversal realizado com 101 pacientes de ambos os sexos, com média de idade de 66,05 (± 13,9 anos. Para a análise estatística foi considerado intervalo de confiança de 95% e valor de significância p <0,05; para a análise de consistência interna foi utilizado o coeficiente de alfa de Cronbach e para a análise da relação entre componentes e itens com o escore total do questionário foi utilizado o coeficiente de correlação de Spearman. Resultados Todos os componentes do questionário apresentaram boa consistência interna com valor de 0,72. Os componentes que mais se relacionaram com o escore total foram "duração do sono" e "qualidade subjetiva do sono", sendo que o componente que menos se relacionou foi "alterações do sono". Dentre os itens a variação foi de 0,584 no item "durante a última semana, em geral, como você classificaria a qualidade do seu sono?", até -0,611 no item "durante a última semana, quantas horas você conseguia dormir durante a noite?". Foi possível observar que os itens "tossir ou roncar muito alto" e "frequência para dificuldades do sono por outras razões" não apresentaram correlação com o escore total do questionário. Conclusão A versão adaptada do PSQI mostrou-se válida para ser utilizada na avaliação do sono em programas de RCPM.

  10. A qualidade do sono, o aproveitamento escolar e o stress em adolescentes que permacem em frente ao computador durante a noite

    OpenAIRE

    Gema Galgani de Mesquita Duarte

    2007-01-01

    Resumo: A qualidade do sono, o aproveitamento escolar e o stress em adolescentes que permanecem em frente ao computador durante a noite. 2007. 234p. Professor Doutor Rubens Nelson Amaral de Assis Reimão. Dissertação (Mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento da Saúde da Criança e do Adolescente. INTRODUÇÃO: O sono representa importante papel na vida do homem, influenciando as condições físicas, psicológicas e sociais. Está intimamente ligado ao...

  11. Sono-vigília, aspectos de memória e melatonina em Síndrome de Williams-Beuren: uma revisão de literatura

    Directory of Open Access Journals (Sweden)

    Stella Donadon Santoro

    2014-12-01

    Full Text Available A Síndrome de Williams-Beuren, distúrbio genético (microdeleção na região cromossômica 7q11.23, apresenta como fenótipo aparente habilidade social que contrasta com o mau funcionamento cognitivo global e visuo-espacial, problemas na forma receptiva, estrutural e semântica da comunicação, além de déficits na atenção, hiperatividade e na memória visuoespacial. Outra caracteristica são desordens no ciclo sono-vigília, com sono ineficaz, resistência em ir para a cama, acordares durante a noite e sonolência durante o dia. Uma possibilidade ainda não explorada nesta síndrome seria o padrão anormal na síntese de melatonina, hormônio capaz de modular a qualidade do sono. Considerando que a qualidade do sono é diretamente influenciada pelos níveis de melatonina e que tanto a melatonina quanto o sono são essenciais para o desenvolvimento adequado das funções cognitivas, buscou-se nesta revisão de literatura quais estudos investigaram separadamente e ou correlacionaram estes três aspectos (melatonina, sono-vigília e memória na síndrome de Williams-Beuren. Para busca, foram utilizadas as bases de dados Medline/Pubmed, SciELO e Lilacs, com os seguintes descritores: "Williams Beuren syndrome, síndrome de Williams Beuren, memory, memória, sleep-wake, sono-vigília, melatonin e melatonina", por meio de cruzamento e com o conectivo AND. O levantamento bibliográfico mostrou que não existem na literatura trabalhos que correlacionaram estas três variáveis entre si nem tampouco trabalhos que investigaram a melatonina na síndrome de Williams-Beuren. As investigações sobre sono assim como as investigações sobre memória são criticamente discutidas neste trabalho que ressalta a necessidade de estudos que correlacionem estes parâmetros, bem como outros fatores comportamentais, cognitivos e bioquímicos a eles relacionados.

  12. Thermoluminescence and photoluminescence properties of NaCl:Mn, NaCL:Cu nano-particles produced using co-precipitation and sono-chemistry methods

    Energy Technology Data Exchange (ETDEWEB)

    Mehrabi, M. [Faculty of Physics, University of Kashan, Kashan (Iran, Islamic Republic of); Zahedifar, M. [Faculty of Physics, University of Kashan, Kashan (Iran, Islamic Republic of); Institute of Nanosince and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of); Saeidi-Sogh, Z. [Institute of Nanosince and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of); Ramazani-Moghaddam-Arani, A., E-mail: ramazmo@kashanu.ac.ir [Institute of Nanosince and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of); Sadeghi, E. [Faculty of Physics, University of Kashan, Kashan (Iran, Islamic Republic of); Institute of Nanosince and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of); Harooni, S. [Institute of Nanosince and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of)

    2017-02-21

    The NaCl: Cu and NaCl: Mn nanoparticles (NPs) were produced by co-precipitation and sono-chemistry methods and their thermoluminescence (TL) and photoluminescence (PL) properties were studied. By decreasing the particles size a considerable increase in sensitivity of the samples to high dose gamma radiation was observed. The NPs produced by sono-chemistry method have smaller size, homogeneous structure, more sensitivity to high gamma radiation and less fading than of those produced by co-precipitation method.

  13. A Síndrome da Apneia/Hipopneia Obstrutiva do Sono (SAHOS) e seu tratamento com cirurgia ortognática

    OpenAIRE

    Faria, Cindy

    2013-01-01

    Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária A Síndrome da Apneia/Hipopneia Obstrutiva do Sono (SAHOS) é uma síndrome com grande prevalência na sociedade actual, constituíndo um grande problema de saúde pública. A SAHOS ocorre pelo repetido estreitamento ou colapso das vias aéreas superiores (VAS) durante o sono provocando como principal síntoma uma hipersonolência diurna exess...

  14. Privação de sono REM em um modelo experimental da doença de Parkinson

    Directory of Open Access Journals (Sweden)

    Luiz A. F. Andrade

    1987-09-01

    Full Text Available Investigação prévia mostrou que ratos privados de sono (REM SD mostram acentuação de resposta a agonistas dopaminérgicos. As evidências indicam que essa ação parece ser mediada por supersensibilização de receptores dopaminérgicos pós-sinápticos. Com base nisso, foi feita REM SD em ratos com modelo experimental da doença de Parkinson, nos quais foi feita lesão eletrolítica bilateral de ambas as vias nigro-estriatais. Sete dias após a cirurgia os animais eram submetidos a REM SD por 72 horas. Imediatamente após o final deste período era feita observação em campo aberto para a ambulação, "rearing", "grooming" e latência. Em comparação com ratos não-privados foi observado aumento significativo na ambulação e "rearing", resposta que reapareceu após um segundo período de REM SD, realizado 21 dias após a cirurgia. Estes dados, de melhora de dois parâmetros de modelo experimental da doença de Parkinson, sugerem que a privação de sono pode ser útil nesta doença.

  15. Surface Charge Measurement of SonoVue, Definity and Optison: A Comparison of Laser Doppler Electrophoresis and Micro-Electrophoresis.

    Science.gov (United States)

    Ja'afar, Fairuzeta; Leow, Chee Hau; Garbin, Valeria; Sennoga, Charles A; Tang, Meng-Xing; Seddon, John M

    2015-11-01

    Microbubble (MB) contrast-enhanced ultrasonography is a promising tool for targeted molecular imaging. It is important to determine the MB surface charge accurately as it affects the MB interactions with cell membranes. In this article, we report the surface charge measurement of SonoVue, Definity and Optison. We compare the performance of the widely used laser Doppler electrophoresis with an in-house micro-electrophoresis system. By optically tracking MB electrophoretic velocity in a microchannel, we determined the zeta potentials of MB samples. Using micro-electrophoresis, we obtained zeta potential values for SonoVue, Definity and Optison of -28.3, -4.2 and -9.5 mV, with relative standard deviations of 5%, 48% and 8%, respectively. In comparison, laser Doppler electrophoresis gave -8.7, +0.7 and +15.8 mV with relative standard deviations of 330%, 29,000% and 130%, respectively. We found that the reliability of laser Doppler electrophoresis is compromised by MB buoyancy. Micro-electrophoresis determined zeta potential values with a 10-fold improvement in relative standard deviation. Copyright © 2015 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.

  16. Comparison of needles size in pediatric renal biopsy with sono-guided percutaneous-automated gun technique

    International Nuclear Information System (INIS)

    Kim, Jong Chul; Park, Jin Yong

    1997-01-01

    To compare the efficacy of a 20-gauge and an 18-gauge needle in sono-guided percutaneous automated gun biopsy for establishing the specific diagnosis of renal parenchymal disease in pediatric kidneys. In 60 pediatric patients with renal parenchymal diseases, percutaneous sono-guided gun biopsy was performed by an experienced radiologist. In two groups of 30 patients, regardless of their age, two needle passes were performed, using alternately an 18-gauge or a 20-gauge biopsy needle. The core of renal tissue thus obtained was examined with light, immunofluorescent or electron microscopy by the renal pathologist. The mean number of intact glomeruli of whole tissue core per biopsy, as seen on the light microscopy, and post-bioptic complications were compared between the two different needle size groups. The number (mean±1 standard deviation) of glomeruli obtained per biopsy was 17±8 in the 18-gauge needle group, and 14±5 in the 20-gauge group. Between two groups, there was no major post-bioptic complication requiring specific treatment, nor a statistically significant difference in the frequency of minor complications. Even though more glomeruli were obtained with an 18-gauge needle, the number obtained with a 20-gauge needle also permitted adequate pathologic examination. Both an 18-gauge and a 20-gauge needle may thus be suitable for renal biopsy in pediatric patients

  17. Ecocardiografia em pacientes com apneia do sono grave com e sem pressão arterial controlada: Estudo transversal

    Directory of Open Access Journals (Sweden)

    Denis Martinez

    2016-01-01

    Full Text Available Introdução: A apneia obstrutiva do sono (AOS afeta a anatomia e função do coração. Ocorre hipertensão arterial em metade dos casos de AOS, dificultando atribuir a etiologia dessas alterações separadamente à hipertensão arterial ou à apneia do sono. Métodos: Estudo transversal de pacientes com índice de apneia-hipopneia maior que 50 eventos por hora. As variáveis ecocardiográficas comparadas em indivíduos com hipertensão arterial controlada e não controlada foram: 1 fração de ejeção, 2 diâmetro da aorta, 3 diâmetro do átrio esquerdo, 4 diâmetro de ventrículo direito, 5 diâmetros do ventrículo esquerdo diastólico e sistólico, 6 percentagem delta, 7 espessura do septo, 8 espessura da parede posterior. Resultados: Foram incluídos 83 voluntários, 50 com pressão arterial não controlada. Em média, a idade era 47±9,5 anos, o índice de massa corporal 34±5,4 Kg/m2, o índice de apneia-hipopneia 86±18 eventos/hora. Sessenta pacientes apresentaram anormalidade no ecocardiograma. A hipertrofia de ventrículo esquerdo foi o achado mais comum, sem diferença de frequência em controles (39% e em hipertensos (48%, seguida por disfunção diastólica em controles (27% e em hipertensos (32%. Conclusões: Indivíduos com apneia do sono grave e pressão arterial controlada apresentam alterações no ecocardiograma de tipo e frequência semelhantes aos com hipertensão não controlada. Isso sugere que a apneia do sono pode causar dano cardíaco independentemente de hipertensão. Quando não explicáveis por hipertensão arterial, achados como hipertrofia de ventrículo esquerdo podem ser provocados por apneia do sono.   Introduction:  Obstructive sleep apnea (OSA affects the cardiac anatomy and function. Hypertension occurs in half the OSA cases, making it difficult to attribute the cause of these changes separately to arterial hypertension or sleep apnea. Methods: Prospective cross-sectional study of volunteers with apnea

  18. FY 2000 Report on the results of research and development of the important regional technologies. Development of high-order processing of high-melting metal-based parts (Development of technologies for creating parts for high-efficiency power production); 2000 nendo juyo chiiki gijutsu kenkyu kaihatsu seika hokokusho. Koyuten kinzokukei buzai no kodo kako gijutsu (kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Described herein are the FY 2000 results of the research and development of heat-resistant materials, aimed at increasing operating temperature of gas turbines not equipped with a cooling system and thereby further improving their thermal efficiency. The program for design/evaluation of high-strength, Nb-based solid solution alloys develops the Nb-based alloy reinforced with a solid solution comprising 5 to 30% of Mo and 5 to 15% of W, all by atom, simultaneously dissolved. The program for design/evaluation of high-strength, Nb-based composite materials confirms effectiveness of incorporating Si in a Nb alloy and separating silicide in the Nb-based solid solution alloy matrix as the combined mechanism of reinforcing the alloy. The program for creation/evaluation of Nb-based parts which withstand superhigh temperature finds that the discharge plasma method gives the structure, in a very short time, almost on a level with that given by the solution solidification method. The program for oxidation resistance improving technologies develops the electrochemical process for forming the oxidation-resistant coating film. The stable oxidation-resistant performance is observed in the preliminary test, because the sample loses no weight when exposed to around 1000 degrees C in air for 10 hours. (NEDO)

  19. Fiscal 1997 R and D project on industrial science and technology under a consignment from NEDO. R and D of the synthesis and processing of advanced biomaterials (fixation and effective utilization of carbon dioxide using peptides); 1997 nendo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Senshin bio zairyo no sosei kako gijutsu no kenkyu kaihatsu (peptide oyo nisanka tanso koteika yuko riyo gijutsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    In fiscal 1997, study was made on formation of peptides with a biogenic function and molecular recognition function, and peptide materials. The existing automatic design technique of peptides including non-natural amino acids was applied to design of complementary peptides of proteins with known structures to optimize a development technique of ligand. Practical function of peptides as advanced receptor ligand was verified by applying the existing conformation control technique to stable holding of peptide active conformation. Creation of bio-materials, and development of preparation technology of bio-substrates and materializing technology of functional molecular materials were carried out. To construct an electron transfer system by self- organized body of peptides formed on a substrate, a peptide molecular device was prepared and verified using linkers. To use peptides as photoelectron functional molecule, metallized peptide with main helix structure was prepared. The possibility of molecular materials with a fixation function of CO2 was examined. A high-sensitivity bio-sensor was also mentioned. 75 refs., 130 figs., 25 tabs.

  20. FY 1993 research and development of the technology for controlling structures of functional composite members. R and D of advanced surface processing for methane-fueled aircraft engine members (Technology for controlling the microscopic structures of superhigh-temperature members); 1993 nendo fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu (methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu). Chokoon buzai micro kozo seigyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Described herein are the results of the FY1993 research and development project, implemented for development of the technologies for modification of material surfaces and interfaces, with the objectives to develop the optimum members for methane-fueled aircraft engines. For R and D of multi-layered films with controlled microscopic structures, the tests are conducted for forming thin-film layers by, e.g., ion implantation, ion mixing and implantation of large quantities of ions as the surface controlling/modification techniques based on, e.g., ionic techniques. The tests are conducted for, e.g., chemical vapor-phase reaction evaporation and low-pressure plasma spraying as the technologies for forming multi-functional films of, e.g., high reliability and resistance to corrosion. For development of the technologies for controlling/compositing the microscopic structures, the tests are conducted for, e.g., selection of the matrix materials, and prevention/removal of defects by the chemical vapor-phase reaction penetration treatment effected for extended periods. For development of the technologies for evaluation of the characteristics under superhigh-temperature environments, the tests are conducted to investigate the mechanical characteristics of isotropically uniform metallic materials under multi-dimensional stresses and evaluation thereof, and mechanical and thermal characteristics of carbon-fiber-reinforced carbon composites and evaluation thereof. (NEDO)

  1. RAČUNALO - DA, ALI KAKO? DRUŽITE SE I POTIČITE FUNKCIONALNO-LOGIČKO MIŠLJENJE VAŠE DJECE KOD KUĆE

    OpenAIRE

    Hilčenko, Slavoljub

    2016-01-01

    Roditelji (Generacija 'Y') nemaju potpun uvid kako njihova djeca (Generacija 'Z') provode vrijeme za računalom. Cilj rada jeste predstavljanje modela kvalitetnog druženja roditelja i djece uz računalo za poticanje funkcionalno-logičkih kapaciteta (udruženo s motornim vježbama) u kojima su 15-godišnjaci Srbije na PISA testiranjima pokazali poražavajuće rezultate. Naša škola nije svemoguća i obrazovanje se ne stječe samo unutar institucionalnih reproduktivno-tradicionalnih 'zidina'. O njenoj te...

  2. Ultraprecision machining. Cho seimitsu kako

    Energy Technology Data Exchange (ETDEWEB)

    Suga, T [The Univ. of Tokyo, Tokyo (Japan). Research Center for Advanced Science and Technology

    1992-10-05

    It is said that the image of ultraprecision improved from 0.1[mu]m to 0.01[mu]m within recent years. Ultraprecision machining is a production technology which forms what is called nanotechnology with ultraprecision measuring and ultraprecision control. Accuracy means average machined sizes close to a required value, namely the deflection errors are small; precision means the scattered errors of machined sizes agree very closely. The errors of machining are related to both of the above errors and ultraprecision means the combined errors are very small. In the present ultraprecision machining, the relative precision to the size of a machined object is said to be in the order of 10[sup -6]. The flatness of silicon wafers is usually less than 0.5[mu]m. It is the fact that the appearance of atomic scale machining is awaited as the limit of ultraprecision machining. The machining of removing and adding atomic units using scanning probe microscopes are expected to reach the limit actually. 2 refs.

  3. KAKO ORGANIZIRATI MEDNARODNO POSLOVANJE PODJETJA

    OpenAIRE

    Karba, Eva

    2015-01-01

    Internacionalizacija poslovanja je za slovenska podjetja skoraj neizogibna, saj je Slovenija za večino podjetij premajhen trg, da bi bila konkurenčna podjetjem iz večjih držav. Podjetja, katerih cilj je razvoj in rast, morajo razmišljati o širjenju poslovanja preko svojih meja. Po odločitvi za prodor na tuji trg morajo objektivno oceniti svoje potenciale in jih upoštevati pri izbiri tujega trga. Nepravilen pristop v veliki meri vpliva prav na poslovanje matičnega podjetja. Zato se magistrsko ...

  4. Consenso brasileiro de ronco e apneia do sono: aspectos de interesse aos ortodontistas Brazilian consensus of snoring and sleep apnea: aspects of interest for orthodontists

    Directory of Open Access Journals (Sweden)

    Cauby Maia Chaves Junior

    2011-02-01

    Full Text Available O objetivo deste artigo é explicitar o posicionamento das sociedades médicas que, reunidas, estabeleceram consenso sobre os parâmetros clínico-laboratoriais que envolvem os distúrbios respiratórios do sono, em especial o ronco e a síndrome da apneia obstrutiva do sono (SAOS. Os ortodontistas, que vêm ocupando gradativamente seu espaço em equipes multidisciplinares que atuam na área do sono humano, pouco conhecem sobre essa uniformização coordenada pela Associação Brasileira de Sono. Os trabalhos clínicos e as pesquisas científicas oriundos da Odontologia, e em particular da Ortodontia, também devem observar e seguir esses critérios de diagnóstico e tratamento estabelecidos pela comunidade médica brasileira.The objective of this article is to clarify the positions of the medical societies that have worked together to establish a consensus regarding the clinical and laboratory parameters involved in sleep-disordered breathing, particularly snoring and obstructive sleep apnea syndrome (OSAS. Orthodontists have gradually come to take part in multidisciplinary teams that act in the area of human sleep, but few know about the uniformity coordinated by the Brazilian Association of Sleep. Clinical and scientific studies from the field of dentistry (particularly orthodontics also must observe and follow these diagnosis and treatment criteria established by the Brazilian medical community.

  5. Fonoaudiologia e apneia do sono: uma revisão Speech therapy and sleepy apnae: a review

    Directory of Open Access Journals (Sweden)

    Erilucia Pereira Santa Rosa

    2010-10-01

    Full Text Available TEMA: a Síndrome da Apneia/Hipopneia Obstrutiva do Sono (SAHOS é definida pela Academia Americana do Sono como a presença de episódios recorrentes de obstrução parcial ou total das vias aéreas superiores durante o sono e manifesta-se como uma redução (hipopneia ou cessação completa (apneia do fluxo aéreo, apesar da manutenção dos esforços inspiratórios. A SAHOS motiva o chamado ronco crônico, sonolência e caracteriza-se pela parada do fluxo aéreo respiratório por pelo menos, 10 segundos. O diagnóstico é realizado através do exame polissonográfico, que consiste no registro simultâneo de atividades do organismo durante a noite, indicando a quantidade de apneias e hipopneias ocorridos e a gravidade da SAHOS. Para sucesso no tratamento desta desordem é fundamental o diagnóstico preciso e correto e a atuação de uma equipe multidisciplinar, estando inserido nela o fonoaudiólogo. OBJETIVO: analisar, através da literatura a interrrelação da Fonoaudiologia e a SAHOS. CONCLUSÃO: aom o referente estudo, podemos identificar a complexidade da SAHOS e mostrar a importância da atuação fonoaudiológica na terapêutica desses pacientes, para uma melhor qualidade de vida.BACKGROUND: the Apnea syndrome / Obstructive Sleepy Hypopnea (SOHAS is define by the American Academy of Sleep with recurrent presence of episodes of partial or total obstruction in the superior airways during sleep, in addition to showing a reduction (hypopnea or complete stoppage (apnea of airflow, although there is an ongoing maintenance of inspiratory efforts. SOHAS motivates the so-called sleepy chronic snoring and sleepiness to dress up by the stop of airflow by at least 10 seconds. The diagnosis is carried out through polysomnographic examination, which consists of the simultaneous recording of body activities during the night, indicating the number of occurring apneas and hypopneas and SOHAS severity. For the successful of disorder treatment it is

  6. Sono-electro-magnetic therapy for treating chronic pelvic pain syndrome in men: a randomized, placebo-controlled, double-blind trial.

    Directory of Open Access Journals (Sweden)

    Thomas M Kessler

    Full Text Available OBJECTIVE: To assess the efficacy and safety of sono-electro-magnetic therapy compared to placebo in men with refractory CPPS. PATIENTS AND METHODS: In a randomized, placebo-controlled, double-blind single center trial, we assessed the effect of sono-electro-magnetic therapy in men with treatment refractory CPPS. Sixty male patients were randomly assigned to treatment with either sono-electro-magnetic (n = 30 or placebo therapy (n = 30 for 12 weeks. The primary outcome was a change in the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI from baseline to 12 weeks. RESULTS: The 12-week difference between sono-electro-magnetic and placebo therapy in changes of the NIH-CPSI total score was -3.1 points (95% CI -6.8 to 0.6, p = 0.11. In secondary comparisons of NIH-CPSI sub-scores, we found differences between groups most pronounced for the quality-of-life sub-score (difference at 12 weeks -1.6, 95% CI -2.8 to -0.4, p = 0.015. In stratified analyses, the benefit of sono-electro-magnetic therapy appeared more pronounced among patients who had a symptom duration of 12 months or less (difference in NIH-CPSI total score -8.3, 95% CI -14.5 to 2.6 than in patients with a longer symptom duration (-0.8, 95% CI -4.6 to 3.1; p for interaction = 0.023. CONCLUSIONS: Sono-electro-magnetic therapy did not result in a significant improvement of symptoms in the overall cohort of treatment refractory CPPS patients compared to placebo treatment. Subgroup analysis indicates, however, that patients with a symptom-duration of 12 months or less may benefit from sono-electro-magnetic therapy, warranting larger randomized controlled trials in this subpopulation. TRIAL REGISTRATION: ClinicalTrials.gov NCT00688506.

  7. Avaliação da relação entre qualidade de sono e uma intervenção com jogos para o desempenho de crianças e adolescentes

    OpenAIRE

    Araújo, Danilo de Freitas

    2012-01-01

    O sono é um processo cerebral ativo que contribui para a realização eficiente das tarefas cotidianas. Mudanças em seu padrão podem influenciar o desempenho de diversos processos cognitivos. Vários estudos recentes têm demonstrado a possibilidade de melhora do desempenho cognitivo, a partir do treinamento cognitivo com o uso de jogos de computador. A questão é se tais intervenções podem ser influenciadas também pela qualidade do sono. Assim, avaliamos o efeito da qualidade do sono sobre ...

  8. Fiscal 1995 achievement report. Development of entrained bed coal gasification power plant (Part 1 - Studies of key elements and techniques); 1995 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Youso kenkyu hen, gijutsu chosa hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Element techniques were studied and surveyed for establishing the technology of integrated coal gasification combined cycle. In fiscal 1995, E coal (coal of high ash fluid point) gasification was tested in the 2 tons/day furnace for the effect of its properties on furnace operation and for its properties relating to gasification and slagging and for changes in such properties due to flux admixed with the E coal. It was then found that the ash fluid point was so high as 1500 degrees C and that flux admixing, recovered oxygen reinjection, etc., would be necessary for the assurance of stable slag discharge. In a study using combined cycle system simulation, a comparison was made between results from tests conducted on a real system and results from the simulation, based on the detailed model completed by the preceding fiscal year. The model was reviewed and improved, and simulations were conducted in the respective operating states and operating modes. In the survey of element techniques, information was gathered at a Japan-U.S. joint technical conference held in Japan in October this year. Studies were also made about technical guidelines, or the like, involving coal gasification power generation. (NEDO)

  9. Systematic arrangement of global environment measure technology. 3. Current status of methane generation and its effective utilization; Chikyu kankyo taisaku gijutsu no taikeiteki seiri. 2. Methane no hassei jokyo to sono yuko riyo no genjo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The status of the methane generation due to landfill with waste has been analyzed to investigate the actual circumstances of effective utilization of methane in the world and its possibility. The artificial generation of methane is 375 Tg per year among the total methane generation in the world, 535 Tg per year. The methane generation from the landfill with waste is 40 Tg per year, which becomes a rather large contribution. The methane generation from the landfill with waste in Japan is estimated to be from 130 to 520 Gg per year, which is a rather low value as a share in the world. This is caused by the sub-aerobic property of landfill in Japan, and the methane generation can be suppressed. Accordingly, there are no systems using recovered methane as energy source in Japan. In the USA, profitability of energy recovery can be established in 600 to 700 landfills among about 6,000 landfills. The methane recovery is practically conducted at more than 120 landfills. The recovered methane is used as a power generation fuel. 45 refs., 43 figs., 27 tabs.

  10. Fiscal 2000 report of investigation. Research on effective use of technology for biomass waste and diffusion scenario of the technology; 2000 nendo biomass kei haikibutsu no yuko riyo gijutsu to sono fukyu scenario no chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Examination and proposal were made on the effective uses of technologies for biomass wastes and on the diffusion scenarios, with trial calculations done to find the maximum reducible amounts in terms of carbon dioxide. In the examination of the systems, it was focused on five technologies, namely, direct combustion of straw and rice straw/CHP/heat utilization, synthesis of gasified methanol from demolition wood, biogas/CHP from livestock feces and urine, conversion to ethanol through saccharification of used paper, and conversion to biodiesel from vegetable waste oil; the examination also covered each feature, core function, use situation inside and outside Japan, technological system for each energy conversion, etc. Further, solutions were examined and proposed concerning diffusion barriers in each scenario. Consequently, the maximum amount of CO2 reduction effect was found respectively 217 thousand t-C in the straw and rice straw, 500 thousand t-C in the demolition wood, 9.53 million t-C in the livestock feces/urine, 820 thousand t-C in the used paper, and 30 thousand t-C in the vegetable waste oil. (NEDO)

  11. Fiscal 1996 achievement report. Development of entrained bed coal gasification power plant (Part 1 - Studies of dismantling and surveys of techniques); 1995 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Kaitai kenkyu hen, gijutsu chosa hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-01-01

    For the establishment of technology of integrated coal gasification combined cycle, studies were made for the dismantling of the 200 tons/day entrained bed coal gasification pilot plant and surveys were conducted of overseas technologies. In the gasification furnace facility, 40 devices were selected, and dismantled, from the locations corresponding to the factors of damage expected to occur involving important equipment. Although no significant damage was detected in the gasification pressure vessel, peripheral walls, or the like, malfunctions due to corrosion or abrasion were discovered in some pipes and members. In the dry type gas clean-up facility (desulfurization facility), damage due to heat stress or corrosion was detected in the regeneration tower inner cyclone, regeneration tower filter flexible tubes, and in circulation gas cooler cooling tubes. In the dry type gas clean-up facility (dedusting facility), damage was found in the dust collector gas seal valve, dust collector filter materials cut valve, and in the separator A/B. In the gas turbine facility, no abnormality was discovered but for some damage in some initial stage static vanes. (NEDO)

  12. Achievement report for fiscal 1993 on developing entrained bed coal gasification power plant. Part 1. Element research and technology survey edition; 1993 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Youso kenkyu hen, gijutsu chosa hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-02-01

    With an objective of establishing a coal gasification composite power generation technology, R and D works have been carried out on elementary technologies. This paper summarizes the achievements in fiscal 1993. In the research on the slag utilization technology, discussions were given on the applicability of slag discharged from a 200 t/d pilot plant to fine aggregate for concrete. In the research on a large gas turbine combustor for a demonstration plant, the test conditions were discussed and the reliability of the combustor was analyzed to conduct an actual gas combustion test using the coal D in continuation from the test in the previous fiscal year. In the research on the simulation of a composite power generation system, the simulation models were reviewed and corrected. Load variation simulations were carried out on every operation mode to have conducted comparison with and discussion on the actual plant data. In order to clarify the slagging phenomenon in the 200 t/d pilot plant, a characteristics test was performed by using a 2 t/d furnace. As a result, the combustor ash load and the dynamic pressure in the axial direction in the throat section were presumed to be the large factors for the occurrence of slagging. (NEDO)

  13. Report on a survey in fiscal 1999. Survey on technologies to effectively utilize biologically originated organic wastes, and the scenarios for proliferation thereof; 1999 nendo seibutsu kigen yukihaikibutsu no yuko riyo gijutsu to sono fukyu scenario no chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    With the biologically originated organic wastes (biomass) left unattended in Japan without being given effective measures as the object, effects are presented on contribution to reducing greenhouse effect gas emission and reducing environmental load, and considerations were given on scenarios to proliferate the utilization technologies. These actions were carried out upon identifying the trends inside and outside the country of developing methods and technologies to utilize them effectively as energy sources. Because of the present shortage in support from the policy aspects for regenerative energies themselves, the back-up from energy policy aspect is an urgent necessity by establishing such a law as the 'natural energy utilization promotion law' whose legislation is proposed by citizens. Appropriate useful technologies would have to be introduced into appropriate applications under such legislative support. For the time being, the 'wastes electric power generation' and 'bio-gasification power generation' systems that have been established already will be utilized. Furthermore, methanol and hydrogen will be synthesized from biomass to be used as fuel for fuel cells. Utilization of the cascade type system is advocated that uses substances sequentially from better ones to utilize woody biomass without waste. (NEDO)

  14. Achievement report for fiscal 1994 on developing entrained bed coal gasification power plant. Part 1. Element research edition and technology survey edition; 1994 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Youso kenkyu hen, gijutsu chosa hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-07-01

    With an objective of establishing the coal gasification composite power generation technology, R and D has been carried out on the elementary technologies. This paper summarizes the achievements in fiscal 1994. In the research on the large gas turbine combustor for the demonstration plant, combustion tests were carried out by using the actual gas from the designed coal (coal D). In addition, the minimum gas flow rate test, fuel calory change test, and fuel switching test were performed from the viewpoint of evaluating the low load stability. Furthermore, in order to evaluate the combustion performance of the tested combustor, such tests were conducted as the combustor pressure loss characteristics test, bypass valve flow rate characteristics test, light oil ignition and light oil combustion test, and tests on the characteristics to switch from light oil to coal gas and the coal gas combustion characteristics. Evaluations were given on the NOx conversion rate, CO, THC, combustion efficiency, metal temperatures, pattern factors, pressure loss, internal pressure variation, and vibration stress. In the simulation research of the composite power generation system, the simulation models were varied according to the actual plant requirements in association with the progress of the tests on the pilot plant. The results of the simulations were reflected to the general load pressure control equipment. (NEDO)

  15. Report on the surveys in fiscal 1984. Surveys on the possibility of using coal liquefied oil as a raw material, and technological development thereon; 1984 nendo sekitan ekikayu no genryoka no kanosei oyobi sono gijutsu kaihatsu ni kansuru chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-01

    With an objective to establish an optimal method for utilizing coal liquefied oil, surveys were performed on the current status of applicable separation technologies for effective utilization of the hetero compounds of O and N contained in liquefied oil, the possibility of hetero compound utilization and issues in technological development for the utilization thereof. Since coal liquefied oil reflects greatly the coal composition and its structure, it contains generally a greater amount of hetero compounds, such as nitrogen and sulfur, as well as aromatic compounds than petroleum. If the hetero compounds could be removed from the liquefied oil more effectively before reforming as a result of progress in separation technologies, hydrogen consumption may be reduced. In addition, economic performance of the coal liquefaction business can be relatively improved by establishing a technology to utilize more effectively these by-products. The current fiscal year has performed surveys on the current status of technologies to separate oxygen and nitrogen in liquefied oil, the possibility of utilizing these hetero compounds, and issues in technological development for the utilization thereof. At the same time, surveys were carried out on the compositions, contents, and separation and analysis methods of hetero compounds in oil obtained by using the coal liquefaction systems being practically used. (NEDO)

  16. Sono, estado nutricional e hábitos de vida de caminhoneiros = Sleep, nutritional status and life habits of truckers

    Directory of Open Access Journals (Sweden)

    Paris, Patrícia de

    2013-01-01

    Full Text Available Objetivo: Avaliar o período de sono, o estado nutricional e os hábitos de vida dos caminhoneiros do município de Veranópolis/RS. Materiais e Métodos: Estudo retrospectivo, transversal com dados secundários de uma amostra de conveniência de 100 caminhoneiros entre 21 e 60 anos. Estudou-se variáveis sociodemográficas, de hábitos de vida, relato de doença crônica não transmissível (DCNT, uso de medicamentos para dormir ou para tratamento de saúde, questões sobre as práticas alimentares e parâmetros antropométricos. Os dados foram analisados por estatística descritiva e analítica pelo programa SPSS® com nível de significância de 5%. Resultados: A idade média dos caminhoneiros foi 38,5±10,2 anos. A maioria dorme 6,0±1,4 horas/dia, apresenta-se com sobrepeso e obesidade (82% e risco para o desenvolvimento de doenças cardiovasculares (69%. O tempo de sono teve associação com o colesterol total e o diabete mellitus. A média de refeições realizadas por dia foi de 3,4±0,9, prevalecendo o café da manhã, o almoço e o jantar. Caminhoneiros que dormem a semana inteira em casa realizam o café da manhã, o almoço e o jantar em suas residências, enquanto aqueles que dormem de 1 a 5 dias fora de casa realizam o almoço e o jantar em restaurantes. Houve associação significativa da faixa etária (p=0,044, consumo de bebidas alcoólicas (p=0,020 e realização de lanche da tarde (p=0,013 com dormir após o almoço; e dos obesos com a presença de hipertensão (p=0,035. Conclusão: O sobrepeso e a obesidade caracterizaram o estado nutricional dos caminhoneiros. O sono associou-se com as DCNT. A maioria realiza três refeições diárias, não pratica exercícios físicos e não é tabagista, porém, tem o hábito de ingerir bebidas alcoólicas

  17. Apneia obstrutiva do sono em portadores da anemia falciforme Obstructive sleep apnea in sickle cell disease carriers

    Directory of Open Access Journals (Sweden)

    Cristina Salles

    2010-02-01

    Full Text Available A Síndrome da Apneia Obstrutiva do Sono (SAOS é definida como episódios recorrentes de obstrução completa ou parcial das vias aéreas superiores que ocorrem durante o sono. O fluxo aéreo pode estar diminuído ou completamente interrompido, a despeito do esforço inspiratório, resultando em episódios intermitentes de hipoxemia, hipercapnia. A presença de SAOS poderá ser um fator de piora da hipoxemia noturna, da doença de base, concorrendo para ocorrência de síndrome torácica aguda. Com o objetivo de revisar dados sobre a fisiopatologia da SAOS em crianças e adolescentes portadores de anemia falciforme, foi realizada busca eletrônica de artigos no Medline e Lilacs nos últimos dez anos, bem como referências cruzadas dos artigos encontrados. Palavras-chaves: "sleep apnea, sickle cell anemia, sickle cell disease, pathophysiology ". Estudos sugerem que a SAOS pode potencializar o quadro clínico, ou seja, as crises álgicas, déficit de estatura, de peso, cognitivo e de inteligência, dessaturação arterial noturna, e acidente vascular cerebral das crianças portadoras de anemia falciforme. Rev. Bras. Hematol. Hemoter.Obstructive Sleep Apnea Syndrome (OSAS is defined as recurrent episodes of complete or partial obstruction of the upper airway during sleep. The airflow can be reduced or completely stopped despite of inspiratory effort, resulting in intermittent episodes of hypoxemia and hypercapnia. OSAS may be a factor in the worsening of nocturnal hypoxemia, of the underlying disease, leading to acute chest syndrome. The aim of this work was to review data on the pathophysiology of OSAS in children and adolescents with sickle cell anemia. We revisited articles published over the last ten years linked to the Medline and Lilacs databases, as well as cross-referencing using these articles. The following keywords were used: sleep apnea, obstructive sleep apnea, sickle cell anemia, sickle cell disease. Studies suggest that OSAS may

  18. Sono-photo-degradation of carbamazepine in a thin falling film reactor: Operation costs in pilot plant.

    Science.gov (United States)

    Expósito, A J; Patterson, D A; Monteagudo, J M; Durán, A

    2017-01-01

    The photo-Fenton degradation of carbamazepine (CBZ) assisted with ultrasound radiation (US/UV/H 2 O 2 /Fe) was tested in a lab thin film reactor allowing high TOC removals (89% in 35min). The synergism between the UV process and the sonolytic one was quantified as 55.2%. To test the applicability of this reactor for industrial purposes, the sono-photo-degradation of CBZ was also tested in a thin film pilot plant reactor and compared with a 28L UV-C conventional pilot plant and with a solar Collector Parabolic Compound (CPC). At a pilot plant scale, a US/UV/H 2 O 2 /Fe process reaching 60% of mineralization would cost 2.1 and 3.8€/m 3 for the conventional and thin film plant respectively. The use of ultrasound (US) produces an extra generation of hydroxyl radicals, thus increasing the mineralization rate. In the solar process, electric consumption accounts for a maximum of 33% of total costs. Thus, for a TOC removal of 80%, the cost of this treatment is about 1.36€/m 3 . However, the efficiency of the solar installation decreases in cloudy days and cannot be used during night, so that a limited flow rate can be treated. Copyright © 2016 Elsevier B.V. All rights reserved.

  19. Qualitative doping area characterization of SONOS transistor utilizing scanning capacitance microscopy (SCM) and scanning spread resistance microscopy (SSRM)

    International Nuclear Information System (INIS)

    Heo, Jinhee; Kim, Deoksu; Kim, Chung woo; Chung, Ilsub

    2005-01-01

    Continuous shrinkage in the memory devices demands further understanding about the doping concentration variations at shallow junction and channel region. Scanning capacitance microscopy (SCM) and scanning spread resistance microscopy (SSRM) can provide reliable information about the electrical and physical junction structure simultaneously. In this work, we attempt to visualize the doping concentration variations of split-gate structure silicon-oxide-nitride-oxide-silicon (SONOS) transistor with thin oxide-nitride-oxide (ONO; 4/7/11 nm). From SCM image, we could identify the source and drain region, which have different doping concentrations from that at channel region. In addition, a gate oxide layer and a depletion region were also identified. Similar results were obtained using SSRM. However, SSRM shows a better resolution, in particular, for highly doped region. For this experiment, the cross-sectional sample has been prepared using focused ion beam (FIB) and hand-polishing method. The results show that SCM and SSRM are very useful methods to analyze the doping profile near the junction as well as the channel

  20. Removal of organic compounds from natural underground water in sorption and sono-sorption processes on selected activated carbons

    Directory of Open Access Journals (Sweden)

    Pietrzyk Andżelika

    2017-01-01

    Full Text Available The article rated removal efficiency of organic matter in the processes of sorption and sono-sorption of underground water grasped for municipal purposes. The studies were conducted in laboratory scale and verified in pilot scale at the Water Treatment Plant Tarnobrzeg-Jeziórko. In the research used granular activated carbons, ie. WD-Extra, WG-12, Norit Row 0.8 and Filtrasorb 300. The processes efficiency was evaluated on the basis of changes in the following parameters, ie.: total organic carbon (TOC, permanganate index, UV absorbance, turbidity and colour. The ultrasounds were generated by means of disintegrator Sonics&Materials VCX 130, using the sonication time of 1 and 5 minutes. The results obtained for the batch tests allowed to observe a beneficial effect of ultrasound on the efficiency of the removal of organic material in the sorption process. The combination of sonication and sorption on activated carbon increased the efficiency of the removal of organic matter by 6–37% for TOC, and 18.6–27.9% for permanganate index, depending on the sorbent used. The positive laboratory results were not confirmed in a pilot scale. In the flow conditions the sonication process did not affect the efficiency of removal of organic matter on the filter model with a bed of activated carbon.

  1. Epidemiologia dos distúrbios respiratórios do sono Epidemiology of sleep-disordered breathing

    Directory of Open Access Journals (Sweden)

    Carlos Alberto de Assis Viegas

    2010-06-01

    Full Text Available Os principais distúrbios respiratórios do sono, ronco e SAOS, são muito prevalentes na população geral, embora se acredite que a maioria dos casos continue não diagnosticada. Devemos estar atentos para os principais fatores de risco que favorecem o aparecimento desses distúrbios, como gênero masculino, obesidade, envelhecimento e características crânio-faciais. Da mesma forma, a presença de hipertensão arterial sistêmica, enfermidades cardiovasculares e metabólicas deve nos alertar para a possibilidade da concomitância de SAOS.The principal types of sleep-disordered breathing-snoring and obstructive sleep apnea syndrome-are highly prevalent in the general population, although it is believed that the majority of cases continue to go undiagnosed. We should be aware of the principal risk factors that favor the onset of these disorders, such as male gender, obesity, aging and craniofacial features. Similarly, systemic arterial hypertension, cardiovascular diseases and metabolic disorders should alert us to the possibility of obstructive sleep apnea syndrome.

  2. Sono- and photoelectrocatalytic processes for the removal of ionic liquids based on the 1-butyl-3-methylimidazolium cation.

    Science.gov (United States)

    Mena, Ismael F; Cotillas, Salvador; Díaz, Elena; Sáez, Cristina; Mohedano, Ángel F; Rodrigo, Manuel A

    2017-12-06

    In this work, sono- and photoelectrolysis of synthetic wastewaters polluted with the ionic liquids 1-Butyl-3-methylimidazolium acetate (BmimAc) and chloride (BmimCl) were investigated with diamond anodes. The results were compared to those attained by enhancing bare electrolysis with irradiation by UV light or with the application of high-frequency ultrasound (US). Despite its complex heterocyclic structure, the Bmim + cation was successfully depleted with the three technologies that were tested and was mainly transformed into four different organic intermediates, an inorganic nitrogen species and carbon dioxide. Regardless of the technology that was evaluated, removal of the heterocyclic ring is much less efficient (and much slower) than oxidation of the counter ion. In turn, the counter ion influences the rate of removal of the ionic liquid cation. Thus, the electrolysis and photoelectrolysis of BmimAc are much less efficient than sonoelectrolysis, but their differences become much less important in the case of BmimCl. In this later case, the most efficient technology is photoelectrolysis. This result is directly related to the generation of free radicals in the solution by irradiation of the electrochemical system with UV light, which contributes significantly to the removal of Bmim + . Copyright © 2017 Elsevier B.V. All rights reserved.

  3. High performance SONOS flash memory with in-situ silicon nanocrystals embedded in silicon nitride charge trapping layer

    Science.gov (United States)

    Lim, Jae-Gab; Yang, Seung-Dong; Yun, Ho-Jin; Jung, Jun-Kyo; Park, Jung-Hyun; Lim, Chan; Cho, Gyu-seok; Park, Seong-gye; Huh, Chul; Lee, Hi-Deok; Lee, Ga-Won

    2018-02-01

    In this paper, SONOS-type flash memory device with highly improved charge-trapping efficiency is suggested by using silicon nanocrystals (Si-NCs) embedded in silicon nitride (SiNX) charge trapping layer. The Si-NCs were in-situ grown by PECVD without additional post annealing process. The fabricated device shows high program/erase speed and retention property which is suitable for multi-level cell (MLC) application. Excellent performance and reliability for MLC are demonstrated with large memory window of ∼8.5 V and superior retention characteristics of 7% charge loss for 10 years. High resolution transmission electron microscopy image confirms the Si-NC formation and the size is around 1-2 nm which can be verified again in X-ray photoelectron spectroscopy (XPS) where pure Si bonds increase. Besides, XPS analysis implies that more nitrogen atoms make stable bonds at the regular lattice point. Photoluminescence spectra results also illustrate that Si-NCs formation in SiNx is an effective method to form deep trap states.

  4. Nightly use of computer by adolescents: its effect on quality of sleep Uso noturno de computador por adolescentes: seu efeito na qualidade de sono

    Directory of Open Access Journals (Sweden)

    Gema Mesquita

    2007-06-01

    Full Text Available OBJECTIVE: To analyze the influence of nocturnal use of computer and their effect on sleep quality, in a group of adolescents. METHOD: Two middle schools were chosen for the research. The sample consisted of adolescents n=160 (55M; 105F, with ages ranging from 15 to 18 years. Questionnaire about computer use with the objective of obtaining information regarding the time and number of hours of nocturnal computer use, were applied for collection of data. They included the Pittsburgh Sleep Quality Index (PSQI, utilized to quantfy sleep quality; student report cards were used to note student's absences and grades were used. RESULTS: The Multiple Logistic Regression test indicated that nocturnal computer use impairs good sleep (p=0.0062. CONCLUSION: Irregular sleep patterns associated with nightly computer use deteriorate sleep quality.OBJETIVO: Analisar a influência do uso noturno de computador na qualidade de sono, em um grupo de adolescentes. MÉTODO: Foram escolhidas duas instituições educacionais de ensino médio. A amostra tomada foi composta de adolescentes (n=160, ( 55 M; 105 F ; a faixa etária estudada foi de 15 a 18 anos. Para a coleta de dados aplicou-se: Questionário para uso do computador, com a finalidade de coletar informações sobre o horário e a quantidade de horas do uso do computador durante as noites; Índice de Qualidade de Sono de Pittsburgh (IQSP utilizado para quantificar a qualidade do sono; e os boletins dos alunos por meio dos quais foram recolhidas as faltas e as notas dos alunos. RESULTADOS: Pela Regressão Logística Múltipla, observou-se que o uso do computador é um fator que compromete o dormir bem (p=0,0062. CONCLUSÃO: Padrões irregulares de sono associados ao uso noturno de computador estão associados à deterioração da qualidade do sono.

  5. Desenvolvimento dos estados de sono na infância Desarrollo de los estados de sueño en la infancia Development of sleep stages in childhood

    Directory of Open Access Journals (Sweden)

    Lorena Teresinha Consalter Geib

    2007-06-01

    Full Text Available Na perspectiva de descrever alguns aspectos da ontogênese e da organização dos estados de sono no primeiro ano de vida, revisou-se na literatura as alterações fisiológicas e comportamentais controladas pelas mudanças que ocorrem durante o sono nessa etapa desenvolvimental. Além disso, com fundamentação na teoria precursora do sono, expõe-se as etapas da diferenciação, a classificação e a organização temporal dos estados de sono, com vistas ao manejo favorável dos eventos ambientais, que afetam a organização do sono infantil.Con la perspectiva de describir algunos aspectos de la ontogénesis y de la organización de los estados del sueño en el primer año de la vida, fueron revisadas, en la literatura, las alteraciones fisiológicas y comportamentales controladas por los cambios que ocurren durante el sueño en esta etapa del desenvolvimiento. Además de esto, fundamentándose en la teoría precursora del sueño, se exponen las etapas de la diferencia, de la clasificación y de la organización temporal de los estados del sueño, con vistas al manejo favorable de los eventos ambientales, que afectan la organización del sueño infantil.With the perspective of describing some aspects of the ontogenesis and organization of the sleep stages during the first year of life, a literature review was carried out to assess the physiological and behavioral alterations controlled by changes occurring during sleep at this developmental stage. In addition, based on the sleep preceding theory, the stages of differentiation, classification and time organization of sleep stages are presented, aiming at the favorable management of environmental events that affect the organization of infant sleep.

  6. Fiscal 1997 survey report / R and D of important region technology. R and D of technologies giving multi-functional characteristics to C/C composites (development of high-grade surface processing technology for engine members for methane fueled air craft. 1. control technology of micro structures of ultra-high temperature members); 1997 nendo seika hokokusho juyo chiiki gijutsu kenkyu kaihatsu. Fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu (methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu). 1. chokoon buzai micro kozo seigyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    For the purpose of developing members most suitable for aircraft use engines with methane as fuel, the R and D were conducted of technology to reform surfaces and interfaces of materials. In the R and D, the paper took up carbon fiber reinforced carbon composite materials (C/C composites). In the surface control and reformation technology using the ion engineering method, etc., in the sealing processing of C/C composites, tried was the formation of a C/SiC/Si3N4 composite layer which was formed by Si3N4 much smaller in thermal expansion coefficient than SiC. Further, technologies on ion injection, thin film formation, giving of oxidation resistance/corrosion resistance, improving/giving of thermal shock resistance, etc. In the multi-functional coating formation technology such as high liability and corrosion resistance, the study was carried out of the dense composite functionally-gradient layer as thermal stress relaxation layer and the fiber reinforced layer by carbon fiber using pores. Besides, studies were made of technologies of the micro structure control combination, evaluation of ultra-high temperature resistant environmental characteristics, etc. 61 refs., 198 figs., 44 tabs.

  7. Bruxismo do sono: possibilidades terapêuticas baseadas em evidências Sleep bruxism: therapeutic possibilities based in evidences

    Directory of Open Access Journals (Sweden)

    Eduardo Machado

    2011-04-01

    Full Text Available INTRODUÇÃO: o bruxismo do sono (BS é uma desordem de movimentos estereotipados e periódicos, associados ao ranger e/ou apertar de dentes durante o sono, decorrentes da contração rítmica dos músculos mastigatórios. Essa condição não é uma doença, porém quando exacerbada pode ocasionar desequilíbrio e alteração das estruturas orofaciais. Dessa forma, surge a necessidade de se obter terapêuticas efetivas e seguras para o controle e o manejo do paciente bruxômano. As alternativas de tratamento variam desde terapêuticas orodentais e farmacológicas até técnicas comportamentais-cognitivas. OBJETIVOS: através de uma revisão sistemática da literatura, tendo como bases de pesquisa a Medline, Cochrane, Embase, Pubmed, Lilacs e BBO, no período compreendido entre 1990 e 2008, e com enfoque em estudos clínicos randomizados e quasi-randomizados, revisões sistemáticas e meta-análises, esse trabalho teve como objetivo analisar e discutir métodos de tratamento para o BS. RESULTADOS: pela análise da literatura verifica-se que existe uma grande quantidade de opções terapêuticas para o BS, porém muitas das terapias não têm suporte científico que as sustente. Assim, a escolha terapêutica deve ser pautada em evidências científicas e no bom senso clínico, objetivando uma melhora na qualidade de vida do paciente bruxômano.INTRODUCTION: Sleep bruxism (SB is defined as a stereotyped and periodic movement disorder, characterized by tooth grinding and/or clenching occurring during sleep, associated with rhythmic masticatory muscle activity. This condition isn't a disease, but when exacerbated may cause an unbalance and changing of orofacial structures. Thus, it is necessary to obtain effective and safe treatments for the control and management of the bruxist patient. The treatment alternatives ranges from oral devices to pharmacological and cognitive-behavioral techniques. OBJECTIVES: This study, through a systematic literature

  8. Hipersonolência diurna e variáveis polissonográficas em doentes com síndroma de apneia do sono

    Directory of Open Access Journals (Sweden)

    O. Mediano

    2007-11-01

    Full Text Available Resumo: A síndroma de apneia obstrutiva do sono (SAOS caracteriza-se por episódios repetidos de obstrução da via aérea superior, hipoxemia nocturna e fragmentação do sono. A hipersonolência diurna constitui um sintoma frequente nos doentes com esta síndroma, embora possa estar ausente. A sua presença representa uma limitação significativa da qualidade de vida do indivíduo, bem como um aumento da morbilidade e mortalidade da SAOS, visto ser um importante factor de risco para acidentes de viação e laborais, podendo originar alterações cognitivo-comportamentais relevantes.O mecanismo desencadeante de hipersonolência diurna não é claro. Alguns autores relacionaram esta com a arquitectura anormal do sono, o que, no entanto, não foi confirmado por outros investigadores. Alguns estudos salientaram a relação entre a hipersonolência diurna e os níveis de dessaturação nocturna da oxi-hemoglobina, mas este facto não foi comprovado cientificamente.O objectivo do presente trabalho foi analisar quais os mecanismos responsáveis pela sonolência diurna nos doentes com SAOS. Assim, numerosas variáveis registadas no estudo polissonográfico foram comparadas em dois grupos de indivíduos com esta patologia, apresentando um deles hipersonolência diurna inequívoca e o outro a total ausência da mesma.Foram avaliados 65 indivíduos seguidos no Departamento Respiratório do Hospital Universitário do Son Dureta (Palma de Maiorca que possuíam no registo poligráfico nocturno um índice de apneia/hipopneia (IAH >20/h. A sonolência excessiva foi determinada utilizando a escala de sono de Epworth (ESE e o teste de latência múltipla. A sua presença foi considerada sempre que o score de ESE >10 e o score do teste de latência múltipla 10 min.Cerca de 25 indivíduos foram excluídos devido a discrepância entre os resultados das referidas determinações. Dos 40 doentes restantes, 23 apresentavam hipersonolência diurna e 17 n

  9. Hipersonolência diurna e variáveis polissonográficas em doentes com síndroma de apneia do sono

    Directory of Open Access Journals (Sweden)

    O. Mediano

    2007-11-01

    Full Text Available Resumo: A síndroma de apneia obstrutiva do sono (SAOS caracteriza-se por episódios repetidos de obstrução da via aérea superior, hipoxemia nocturna e fragmentação do sono. A hipersonolência diurna constitui um sintoma frequente nos doentes com esta síndroma, embora possa estar ausente. A sua presença representa uma limitação significativa da qualidade de vida do indivíduo, bem como um aumento da morbilidade e mortalidade da SAOS, visto ser um importante factor de risco para acidentes de viação e laborais, podendo originar alterações cognitivo-comportamentais relevantes.O mecanismo desencadeante de hipersonolência diurna não é claro. Alguns autores relacionaram esta com a arquitectura anormal do sono, o que, no entanto, não foi confirmado por outros investigadores. Alguns estudos salientaram a relação entre a hipersonolência diurna e os níveis de dessaturação nocturna da oxi-hemoglobina, mas este facto não foi comprovado cientificamente.O objectivo do presente trabalho foi analisar quais os mecanismos responsáveis pela sonolência diurna nos doentes com SAOS. Assim, numerosas variáveis registadas no estudo polissonográfico foram compara das em dois grupos de indivíduos com esta patologia, apresentando um deles hipersonolência diurna inequívoca e o outro a total ausência da mesma.Foram avaliados 65 indivíduos seguidos no Departamento Respiratório do Hospital Universitário do Son Dureta (Palma de Maiorca que possuíam no registo poligráfico nocturno um índice de apneia/hipopneia (IAH >20/h. A sonolência excessiva foi determinada utilizando a escala de sono de Epworth (ESE e o teste de latência múltipla. A sua presença foi considerada sempre que o score de ESE >10 e o score do teste de latência múltipla 10 min.Cerca de 25 indivíduos foram excluídos devido a discrepância entre os resultados das referidas determinações. Dos 40 doentes restantes, 23 apresentavam hipersonolência diurna e 17 n

  10. Qualidade de sono, atividade física durante o tempo de lazer e esforço físico no trabalho entre trabalhadores noturnos de uma indústria cerâmica

    Directory of Open Access Journals (Sweden)

    Elaine Cristina Marqueze

    Full Text Available Este estudo teve o objetivo de verificar a relação entre qualidade do sono e atividade física durante o tempo de lazer entre trabalhadores noturnos com um elevado esforço físico no trabalho (média de 14.245; DP 3.456 kcal/semana. Também foi avaliada a relação entre a qualidade do sono e o nível do esforço físico no trabalho. Um total de 19 trabalhadores noturnos de uma indústria cerâmica respondeu o índice da qualidade do sono de Pittsburgh (PSQI e o questionário internacional da atividade física (IPAQ. Foi calculado o dispêndio calórico total por semana para cada trabalhador através do equivalente metabólico (METs. Os trabalhadores foram distribuídos em dois grupos, de acordo com os escores do PSQI. Foi realizada a análise descritiva dos dados por meio de médias, valores mínimo e máximo, proporções e desvios-padrão. A relação entre qualidade do sono e atividade física foi avaliada pelo teste Mann-Whitney. O grupo de qualidade do sono ruim mostrou nível mais elevado de gasto energético no trabalho que o outro grupo, o que sugere uma relação entre gasto energético no trabalho e qualidade de sono. Distúrbios do sono e sonolência diurna também contribuíram para a qualidade de sono ruim. Esses resultados, embora preliminares, revelam uma tendência de que o elevado esforço físico no trabalho noturno contribui para baixa qualidade de sono.

  11. Sleep disorders and quality of life of harvesters rural labourers Distúrbios do sono e qualidade de vida de trabalhadores rurais safristas

    Directory of Open Access Journals (Sweden)

    Joseane Lima

    2010-06-01

    Full Text Available The various kinds of work may interfere in the laborer's quality of sleep. Among the factors, the unemployment caused by the period between the coffee harvests on the agriculture of South Minas may influence the appearance of anxiety and depression symptoms, and it may cause impairments to the quality of life and changes in the rural laborers' pattern of sleep. OBJECTIVE: To appraise the sleep and the effects on the quality of life in the rural laborers in the period between the coffee harvests. METHOD: In the study-group, 40 patients, rural laborers, were evaluated, and in the control-group, 40 patients, fixed laborers. Instruments used: clinical interview, The Pittsburgh Sleep Quality, Index Beck Anxiety Inventory, Hamilton Depression Rating Scale, and World Health Organization Quality of Life. RESULTS: The study-group showed impairment in the quality of the sleep; anxiety and depression signals and symptoms were high in both groups; being them higher in the harvesters laborers; the quality of life presented good levels in both groups, with losses in the domain "social relationship" between the harvesters; the sleep disturbances influenced the appearance of anxiety and depression signs and symptoms, but they did not interfere in the perception of the quality of life. CONCLUSION: The rural laborers that have fixed labors are less exposed to the symptoms of anxiety and depression - along with sleep disorders - than the harvesters laborers. Thus, the study-group's perception of the quality of life is better than the control-group's.As diversas formas de trabalho podem interferir na qualidade do sono do trabalhador. Entre os fatores, o desemprego ocasionado pela entressafra da cultura cafeeira nas lavouras sul mineiras pode influenciar no surgimento de sintomas de ansiedade e de depressão e causar prejuízos na qualidade de vida e alterações no padrão do sono dos trabalhadores rurais. OBJETIVO: Avaliar o sono e as repercussões na qualidade de

  12. Green method for ultrasensitive determination of Hg in natural waters by electrothermal-atomic absorption spectrometry following sono-induced cold vapor generation and 'in-atomizer trapping'

    International Nuclear Information System (INIS)

    Gil, Sandra; Lavilla, Isela; Bendicho, Carlos

    2007-01-01

    Sono-induced cold vapor generation (SI-CVG) has been used for the first time in combination with a graphite furnace atomizer for determination of Hg in natural waters by electrothermal-atomic absorption spectrometry after in situ trapping onto a noble metal-pretreated platform (Pd, Pt or Rh) inserted into a graphite tube. The system allows 'in-atomizer trapping' of Hg without the use of conventional reduction reactions based on sodium borohydride or tin chloride in acid medium for cold vapor generation. The sono-induced reaction is accomplished by applying ultrasound irradiation to the sample solution containing Hg(II) in the presence of an organic compound such as formic acid. As this organic acid is partly degraded upon ultrasound irradiation to yield CO, CO 2 , H 2 and H 2 O, the amount of lab wastes is minimized and a green methodology is achieved. For this purpose, experimental variables influencing the generation/trapping process are fully investigated. The limit of detection for a 10 min trapping time and 10 mL sample volume was 0.03 μg L -1 (Integrated absorbance) and the repeatability expressed as relative standard deviation was about 3%. Carbonates and chlorides at 100 mg L -1 level caused a signal depression by 20-30%. The enhanced trapping efficiency observed with the sono-induced cold vapor generation as compared with 'in-atomizer trapping' methods employing chemical vapor generation is discussed. A reaction pathway for SI-CVG is proposed on the basis of the current knowledge for synthesis of noble metal nanoparticles by ultrasound

  13. Alterações cardiovasculares na síndrome da apnéia obstrutiva do sono Cardiovascular comorbidities and obstructive sleep apnea

    Directory of Open Access Journals (Sweden)

    Fátima Dumas Cintra

    2006-06-01

    Full Text Available A síndrome da apnéia obstrutiva do sono (SAHOS é uma condição prevalente na população, associada a maior risco cardiovascular, freqüentemente não-diagnosticada. O reconhecimento da síndrome requer alto grau de suspeita clínica, especialmente por cardiologistas, e pode ser confirmada por meio da polissonografia. O tratamento da síndrome com o uso de CPAP (pressão positiva na via aérea superior é altamente eficaz, melhorando o padrão respiratório durante o sono, instituindo o sono reparador e, dessa forma, otimizando a qualidade de vida desses pacientes, além de atenuar ou reverter muitas das complicações cardiovasculares relacionadas a SAHOS. Este artigo aborda a fisiopatologia e os aspectos clínicos das comorbidades cardiovasculares associadas à síndrome.Obstructive sleep apnea-hypopnea syndrome (OSAHS is a prevalent condition in the general population. It is associated with increased cardiovascular risk and often goes unrecognized. Its diagnose requires a high degree of clinical suspicion, particularly on the part of cardiologists, and it may be confirmed by polysomnography. Continuous positive airway pressure (CPAP therapy is highly effective, since it improves sleep breathing pattern, promotes restful sleep and thus enhances the quality of life of these patients, in addition to attenuating or reversing many cardiovascular complications related to OSAHS. This paper addresses the pathophysiology and clinical features of cardiovascular comorbidities associated with the syndrome.

  14. Transport-limited current and micro-sono-reactor characterization at 3 low frequencies in the presence of water, acetonitrile and imidazolium-based ionic liquids

    International Nuclear Information System (INIS)

    Costa, C.; Hihn, J. Y.; Rebetez, M.; Doche, M. L.; Bisel, I.; Moisy, P.

    2008-01-01

    A micro-sono-reactor, specially designed to carry out electrochemical tests in a room-temperature ionic liquid medium (RTIL), was studied. The cell, based on a particular design consisting of off-setting the ultrasonic probe out of the reaction volume, was characterized by several methods such as calorimetry, dosimetry and mass transfer measurements. The main result concerns the specific behaviour of the ionic liquid under ultrasonic irradiation. For example, the mass-transfer enhancement is particularly high, characterized by an average Sherwood number of 6500 while the value obtained with an electrode rotating at 4500 rpm is only 1200. (authors)

  15. Alterações do ciclo sono-vigília moduladas por Dopamina e suas consequências Mnemônicas

    OpenAIRE

    Franca, Arthur Sergio Cavalcanti de

    2012-01-01

    As descobertas da neurociência estão em franca ascensão. A sua grande interdisciplinaridade facilita uma abordagem mais complexa do cérebro, abrangendo com profundidade diversas áreas. No entanto, muitos fenômenos que fascinam a humanidade estão longe de ser completamente elucidados; nesse contexto se encontra a relação entre a consolidação das memórias e o sono. Nesse trabalho investigamos o papel de parte do sistema dopaminérgico no processo de consolidação de memórias e n...

  16. Caracterização dos padrões de dor, sono e alexitimia em pacientes com fibromialgia atendidos em um centro terciário brasileiro

    Directory of Open Access Journals (Sweden)

    Lazslo A. Avila

    2014-10-01

    Full Text Available Objetivos: Fibromialgia (FM é uma síndrome complexa, caracterizada por uma dor musculoesquelética crônica duradoura e difusa, derivada de causas não inflamatórias e classicamente associada à presença de pontos sensíveis específicos. No entanto, estudos destacaram outros sintomas importantes associados à má qualidade de vida (QDV em pacientes com FM, por exemplo, distúrbios do sono e alexitimia. Esse estudo teve por objetivo investigar os padrões de dor, sono e alexitimia de pacientes com FM em um centro terciário brasileiro. Métodos: 20 pacientes com FM acompanhados na clínica ambulatorial de reumatologia de um centro terciário brasileiro (Faculdade de Medicina de São José do Rio Preto - FAMERP, São Paulo, Brasil e 20 pacientes sem FM provenientes de outros serviços ambulatoriais da FAMERP completaram um questionário clínico e sociodemográfico, o Fibromyalgia Impact Questionnaire (FIQ, o Pittsburgh Sleep Quality Index (PSQI, o Toronto Alexithymia Scale (TAS-20 e o SF-36 (WHOQOL. Resultados: Os pacientes com FM tiveram desempenhos piores em todas as dimensões de QDV do SF-36 e escores mais altos no PSQI (P = 0,01 e no TAS-20 (P = 0,02. Pacientes com FM também tiveram escores significativamente mais altos em todos os domínios específicos do PSQI e TAS-20. Discussão: Os presentes dados concordavam com a literatura, evidenciando pior desempenho de pacientes com FM no impacto da dor, queixas de sono e maior presença de alexitimia. Conclusão: Estudos evidenciaram, além das queixas de dor, a presença de sintomas importantes e frequentemente subdiagnosticados, em pacientes com FM, como queixas relativas ao sono e alexitimia. Um conhecimento mais aprofundado desses distúrbios poderia melhorar a abordagem e o tratamento dos pacientes com FM.

  17. Padrão do ciclo sono-vigília e sua relação com a ansiedade em estudantes universitários Sleep/wake cycle pattern and its relationship with anxiety in college students

    Directory of Open Access Journals (Sweden)

    Katie Moraes de Almondes

    2003-04-01

    Full Text Available Neste trabalho, foram investigadas as relações entre o ciclo sono-vigília e a ansiedade. O ciclo sono-vigília e traço e estado de ansiedade foram avaliados em 37 estudantes do segundo ano do curso médico. Os estudantes responderam ao Índice de Qualidade de Sono de Pittsburgh - IQSP, ao Inventário de Estado e Traço de Ansiedade - IDATE e a um questionário de matutinidade - vespertinidade (cronotipo. Todos registraram seu sono em um diário durante duas semanas. Os resultados mostraram que os estudantes de medicina tinham altos escores de traço e estado de ansiedade. Aqueles que tinham maiores escores de traço de ansiedade acordavam mais cedo nos dias de semana e finais de semana enquanto os que apresentavam irregularidade do seu ciclo sono-vigília apresentaram maior estado de ansiedade. Sugere-se que há uma relação entre o ciclo sono-vigília e a ansiedade.This paper examines the relationship between the sleep/wake cycle and anxiety in medical students. The sleep/wake cycle and anxiety were evaluated in 37 second year medical school students. The volunteers answered a morningness-eveningness questionnaire, Pittsburgh Sleep Quality Index - PSQI and state and trait of anxiety inventory - STAI; all kept a sleep/wake diary for two weeks. The results showed that the students had high anxiety trait and state. Students who had high anxiety trait had an earlier sleep offset on weekdays and weekend, and students who displayed irregularity in the sleep/wake cycle had high anxiety state. These results suggest a relationship between the sleep/wake cycle and anxiety.

  18. Mesoporous generation-inspired ultrahigh capacitive deionization performance by sono-assembled activated carbon/inter-connected graphene network architecture

    International Nuclear Information System (INIS)

    Song, Haiou; Wu, Yifan; Zhang, Shupeng; Li, Wentao; Wang, Baijun; Wang, Changming; Gao, Juanjuan; Li, Aimin

    2016-01-01

    Highlights: • 3D AC/inter-connected graphene network architecture has been constructed for CDI application. • Generated mesoporous structures can inspire ultrahigh capacitive deionization performance. • Usage of the smaller amounts (5 wt%) of functionalized graphene reduce the secondary pollution. • Inter-connected graphene network as the conductive bridge can decrease the aggregation of AC. • The environmental and economical composite electrode is suitable for practical CDI application. - Abstract: Capacitive deionization (CDI) is an emerging technology that supplies deionized water to resolve the fresh water shortage. CDI electrodes are mainly made up of carbon materials, of which the deionization performance is closely related to their physical properties and structures. Hence, a rational design of electrode material structure is essentially significant. Functionalized graphene (fG) in particular has recently been regarded as characteristic CDI electrode material. However, preparation of fG based on graphene oxide usually results in serious secondary pollution due to usage of highly poisonous chemicals, and thus still cannot meet the demand of practical application. It is feasible that environmentally-friendly activated carbon (AC) and small amounts of fGs can be combined rationally, and used as CDI electrodes. Here, sono-assembled AC/m-phenylenediamine (mPEA) or p-phenylenediaminefG inter-connected network architecture has been constructed for the first time successfully. The specific capacitances of the AC/fG composites were found to be significantly higher than that of the AC electrode owing to mesoporous generation. Also, among all the samples, the AC composite with 5 wt % mPEA-fG exhibited an ultrahigh electrosorption capacity of 12.58 mg/g (or 0.22 mmol/g) in NaCl solution. These observations indicate that fG can serve as an efficient conductive bridge to decrease the aggregation of AC particles, and improve the electron transfer with the

  19. Research and development project for a large-scale industrial technology in fiscal 1992. Research and development of an advanced function creating and processing technology /Development of an advanced function creating and processing technology (Report on work achievements); 1992 nend senshin kino soshutsu kako gijutsu no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-01-01

    A joint research has been performed between the Material Engineering Technology Research Institute of the National Institute of Materials and Chemical Research of the Ministry of International Trade and Industry and the Advanced Function Creating and Processing Technology Research Association. The research themes are the 'identification of the basic conditions for production of ultra fine ceramics particles by using the hybrid high-frequency plasma process' and the 'establishment of non-destructive analysis technology for inclination functional materials'. This paper reports the achievements in fiscal 1992. The research on the inclination functional materials has performed hybridization of high-frequency plasmas and fabrication of ultra fine alumina particles, trial fabrication and evaluation on alumina-titanium mixed ultra fine particles by using the high-frequency plasma process, spraying of hydroxyapatite by using high-frequency plasma, evaluation on thick film bulk made of ultra fine particles, and trial fabrication of an ultra fine particle injection device. It was intended to evaluate quantitatively crystalline deficiency and composition distribution in the inclination functional materials for which continuous composition control is important. Therefore, a Rutherford wake scattering device was introduced and installed newly at the Material Engineering Technology Research Institute, which has improved the evaluation and experiment system at the institute. (NEDO)

  20. Fiscal 1999 achievement report. Development of technology for machine tool with energy consumption rationalized (Research and development of environment-conscious grinding system); 1999 nendo energy shiyo gorika kosaku kikai nado gijutsu kaihatsu seika hokokusho. Kankyo taiogata kensaku kako system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    A large quantity of coolant is used in the grinding process for ensuring high accuracy and quality in the work. This presents a serious problem from the viewpoint of environmental impact or energy conservation, and now environment-conscious grinding methods requiring no or less coolant are sought for. With a view to answering the demand, efforts are exerted to put to practical use, and improve, an EcoloG grinding technique. The goal is to reduce to half the energy that the grinding process is now consuming. The EcoloG technique is a grinding method under which vegetable oil mist is cooled for lubrication and a small amount of cooling water is fed to the point of grinding for removing chips. In fiscal 1999, a survey was conducted on technical literature, patents, and the like in and out of Japan for the study of the actual state of dry machining, and then the course of future studies was clearly established. Studies were also carried out aiming at the practical application and improvement of the EcoloG grinding technique, and the technique achieved a quality level as high as that of the conventional coolant-aided method in a process of grinding a shaft to have an accurate outer diameter by use of an ordinary wheel head. (NEDO)

  1. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium research field (Development of super-devices for medical equipment by 3-dimensional microstructure machining technology - 3rd year); 1999 nendo micro sanjigen kako gijutsu ni yoru iryo kikiyo super device no kaihatsu seika hokokusho (dai 3 nendo)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In the development of micromechanisms, a highly efficient micromotor capable of outputting 25g/cm is developed, in which a DC motor, 4mm in diameter and 12.5mm in length, and a deceleration mechanism are combined. A technology is established of manufacturing microtubes 0.1mm in internal diameter of various materials for use with medical equipment. A direct cam screw type discharge mechanism for minute amounts is developed. It is now foreseen that a cartridge (air pressurized) discharge mechanism and a tube pump will be commercialized. A microjoint is developed with a built-in micro check valve for medicine flow channels. A microfilter is developed using a polypropylene hollow yarn membrane. A microsensor is developed, which responds to a 0.01-second change in flow rate at an error rate of {+-}3% or less. A microcomputer control system is test-produced. Newly developed devices are integrated for the test production of a portable device for sustained infusion of medicine, and the product is found to be superior to the existing systems. Also described are the utilization of various micromachining techniques. (NEDO)

  2. Report of the results of the fiscal 1997 regional consortium R and D project. Regional consortium field / Development of medical equipment use super devices using micro-3D processing technology (first fiscal year); 1997 nendo chiiki consortium kenkyu kaihatsu jigyo. Chiiki consortium bun`ya / micro sanjigen kako gijutsu ni yoru iryo kikiyo super device no kaihatsu (daiichi nendo) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The R and D are conducted of medical equipment use super devices using technical seeds of Mechanical Engineering Laboratory and micro-3D processing technology which was developed from precision processing technology, etc. which is integrated in the Suwa area, Nagano prefecture. For it, the following R and D are carried out: 1) development of micromechanism: DC3V driven micromotor, chemical use microtube with diameter of 0.1mm, micro-delivery mechanism of chemicals, misting mechanism of chemicals, microjoint, microconnector and cable, and microfilter. 2) development of microsensor: small size/non-contact, microflow of chemicals, and sensor to detect emission of bubble. 3) development of control system. In fiscal 1997, in 1), each element was trially made to clarify subjects. In 2), it was made clear that as flow sensor, ultrasonic type, electromagnetic type and thermal mass flow type are viable, and as bubble sensor, optical sensor is viable. In 3), the following were conducted: information collection of contactless charging circuit, and trial fabrication of liquid crystal polymer ultra thin casing. 9 refs., 84 figs., 30 tabs.

  3. Technological development of machine tools using less energy in fiscal 2000. Achievement report on research and development of cutting process replacing electric discharge processing; 2000 nendo energy shiyo gorika kosaku kikai nado gijutsu kaihatsu seika hokokusho. Hoden kako wo chikansuru sessaku kakoho no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research and development has been made with an objective to replace the electric discharge processing consuming a large amount of energy and having environmental load, with the cutting process consuming less energy while maintaining the equivalent processing precision. This paper summarizes the achievements in fiscal 2000. Development of cutting tools has made three times or more as many multi-aspect utilization as compared to conventional tools possible by researching the tip shapes. In addition, ultra hard end mill suitable for cutting very hard materials using an ultrasonic cutting head was fabricated on the trial basis, and its cutting capability was verified. In developing the cutting processing heard, a vibration mode possible of cutting with the ultra hard tool was generated, ATC has become possible, and the possibility of cutting hard-to-cut materials was verified. For processing a narrow and deep part, an improved type tool was developed, whereas the practical cutting performance suppressing wear of the blade tip was obtained. To deal with the environment, development and prototype fabrication were performed on a unit having a grease lubricated high-speed main shaft that is considered to be the mainstream in the future. In the operation test at 20,000 min-L, know-how was acquired in relation with the basic performance, manufacture and use of the unit. (NEDO)

  4. FY 2000 report on the results of the technology development of energy use reduced machine tools, etc. R and D of the environment-friendly grinding machine system; 2000 nendo energy shiyo gorika kosaku kiki nado gijutsu kaihatsu seika hokokusho. Kankyo taiogata kensaku kako system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The R and D were conducted of a grinding machine system of an environmental-friendly type in which no coolant is used or the amount of coolant is reduced, and the FY 2000 results were summed up. As to the ECOLOG grinding newly thought up, the roles were divided: the lubrication into a trace of the vegetable oil supplied onto the grindstone surface, cooling into a trace of the cooling water supplied to the structure, discharge of chips to the cooling water for bed table cleaning. By this, the amount of the cooling water becomes approximately 1/3 of that in the conventional grinding. Concerning the ECOLOG grinding using the usual grindstone, the grinding performance equal to that in the conventional grinding was confirmed. In the study for making the cooling water non-pollutant, the chlorine/sulfur free coolant was developed which includes no chemical substances designated by the PRTR law at all. It was confirmed that the grinding performance was almost the same level as the existing coolant which includes sulfur. In the study of the supply of coolant applied with ultrasonic waves, the result was obtained that in the optical glass grinding, the number of scratches decreased and the surface roughness improved even at the flow rate of coolant which is less than in the conventional grinding. (NEDO)

  5. Sedentarismo e hábitos de sono entre adolescentes de 10 a 19 anos estudantes de escolas estaduais do município de Ribeirão Preto

    OpenAIRE

    Adriana Lucas Louro

    2015-01-01

    O presente estudo objetivou estudar as características relacionadas ao nível de atividade física e hábitos de sono entre adolescentes de 10 a 19 anos de idade. Trata-se de um estudo transversal, observacional e descritivo que foi realizado por meio de entrevistas, o qual foram utilizados dois questionários, um contendo questões acerca dos hábitos de sono, e o IPAQ para estudar o nível de atividade física. Foram estudados 535 adolescentes de ambos os sexos, estudantes de escolas públicas estad...

  6. Melhora da dor, do cansaço e da qualidade subjetiva do sono por meio de orientações de higiene do sono em pacientes com fibromialgia Improvement in pain, fatigue, and subjective sleep quality through sleep hygiene tips in patients with fibromyalgia

    Directory of Open Access Journals (Sweden)

    Aline Cristina Orlandi

    2012-10-01

    Full Text Available OBJETIVO: Avaliar a efetividade das orientações para higiene do sono em mulheres portadoras de fibromialgia. MATERIAIS E MÉTODOS: Setenta mulheres completaram o estudo. Na avaliação foram aplicados o Questionário de Impacto da Fibromialgia(FIQ, o Índice de Qualidade do Sono de Pittsburgh (PSQI e um questionário geral, com dados pessoais e informações de hábitos de vida. Todas as pacientes receberam informações quanto à doença, além de um diário do sono, e apenas o grupo-experimental recebeu orientações para higiene do sono. Foi solicitado às pacientes que realizassem a higiene do sono, e as mesmas foram reavaliadas após três meses. RESULTADOS: A idade média das pacientes do grupo-controle foi 55,2 ± 7,12 anos, e a do grupo-experimental foi 53,5 ± 8,89 anos (P = 0,392. Nessas pacientes foram observadas diminuições da medida de Escala Visual Analógica de dor (P = 0,028, de cansaço (P = 0,021 e do componente 1 do PSQI (P = 0,030. O grupo que recebeu orientações para higiene do sono mostrou redução significativa na dificuldade de retorno ao sono quando acordava de madrugada (P = 0,031. O grupo-experimental apresentou aumento na porcentagem de relatos de "ambiente sem ruído" (variando de 42,9% para 68,6%, diminuição da porcentagem de relatos de "ambiente com pouco ruído" (variando de 40% para 22,9% e diminuição na porcentagem de relatos de "ambiente com muito ruído" (variando de 17,1% para 8,6%. As alterações facilitaram o retorno ao sono quando as pacientes acordavam durante a madrugada. CONCLUSÃO: Uma cartilha com orientações de higiene do sono permitiu a alteração do comportamento das pacientes, que obtiveram melhora da dor e do cansaço, aumento da qualidade subjetiva do sono, além de facilitação do retorno ao sono após despertar durante a madrugada.OBJECTIVE: To evaluate the effectiveness of sleep hygiene instructions for women with fibromyalgia. MATERIALS AND METHODS: Seventy women with

  7. Resultados preliminares do tratamento dos pacientes submetidos a radiofreqüência (baixa freqüência, somnoplastia no ronco e apnéia leve do sono

    Directory of Open Access Journals (Sweden)

    Dibbern Ralph S.

    2002-01-01

    Full Text Available Introdução: O ronco afeta 5 a 50% da população tornando-se um problema médico e social importante. O tratamento pode ser com medidas comportamentais, CPAP e cirúrgico. Objetivo: Avaliar os resultados pós-operatórios dos pacientes submetidos à radiofreqüência em palato. Forma de estudo: retrospectivo clínico. Material e método: 28 pacientes submetidos à radio-freqüência em palato, com diagnóstico de Ronco e Apnéia Leve do Sono. Observamos os resultados pós-operatórios através das Escalas de Epworth, Ronco e Sonolência diurna, complicações e percentual de melhora dos sintomas. A análise estatística foi pelo Mann Whytney Test. Resultados: 16 pacientes com melhora subjetiva do Ronco acima de 70% após a cirurgia; 26 pacientes mostraram redução significativa pelas Escalas, com complicações mínimas. Conclusão: Radio-freqüência é um método seguro e eficaz no tratamento do Ronco e Apnéia Leve do Sono. Resultados melhores serão obtidos com avaliação criteriosa pré e pós-operatórias.

  8. Transport property of novel sono-catalysed LiCF sub 3 SO sub 3 doped SiO sub 2 -PEG ormolyte

    CERN Document Server

    Jung, H Y; Wi, C J; Whang, C M

    2003-01-01

    Transport property of a novel sono-catalysed LiCF sub 3 SO sub 3 doped SiO sub 2 -10 wt% PEG ormolyte is reported. The ormolyte was synthesized by sol-gel method by varying the LiCF sub 3 SO sub 3 concentration [Li/O] from 0 to 0.1 in mole. The composition with [Li/O] = 0.05 exhibited the highest conductivity (sigma sub 2 sub 5 sub d eg sub C = 2.4x10 sup - sup 4 S cm sup - sup 1) with an enhancement of 10 sup 3 from that of the host matrix: SiO sub 2 -10 wt% PEG sono gel and has been referred to as 'optimum conducting composition (OCC)'. The direct determination of Li sup + ion mobility (mu)/mobile ion concentration (n) indicated that the enhancement was due to the increase in mu and n both. The temperature dependence of sigma, mu and n were carried out for the OCC samples in order to evaluate the respective energies involved in different thermally activated processes and to understand the ion transport mechanism. The ion transference number (t sub i sub o sub n) measurement inferred the ions as the sole cha...

  9. Pediatras e os distúrbios respiratórios do sono na criança Pediatricians and sleep-disordered breathing in the child

    Directory of Open Access Journals (Sweden)

    Aracy Pereira Silveira Balbani

    2005-04-01

    Full Text Available OBJETIVOS: pesquisar as opiniões e condutas de pediatras frente aos distúrbios respiratórios do sono (DRS em crianças. MÉTODOS: Foram selecionados aleatoriamente 516 pediatras do Estado de São Paulo. Foi enviado aos pediatras, por correio, um formulário de questões sobre: perfil profissional, seu conhecimento do DRS na criança, opiniões e condutas para diagnóstico e tratamento dessa doença. RESULTADOS: Retornaram preenchidos 112 questionários anônimos (21,7%. O ensino de DRS na infância durante a graduação e a residência médica em Pediatria foi considerado insatisfatório, respectivamente, por 65,2% e 34,8% dos pediatras. Quarenta e nove pediatras (43,8% avaliaram seu conhecimento de DRS na criança como regular, 39 (34,8% como bom e 17 (15,2% como insatisfatório. As questões de anamnese do sono consideradas mais importantes foram: respiração bucal, pausas respiratórias, número de horas de sono, sonolência diurna excessiva e chiado noturno. Os dados clínicos considerados mais importantes para a suspeita de síndrome da apnéia obstrutiva do sono (SAOS foram: pausas respiratórias, hipertrofia da adenóide, respiração bucal, presença de anomalia craniofacial e ronco. As principais condutas citadas para diagnóstico de SAOS na criança foram: radiografia do cavum e avaliação com otorrinolaringologista (25% e oximetria de pulso noturna (14,2%. Somente 11,6% dos pediatras indicaram a polissonografia de noite inteira e 4,5%, a polissonografia breve diurna. As condutas consideradas mais eficazes para tratamento de DRS foram: cirurgias de adenoidectomia e adenotonsilectomia, orientação aos pais, perda de peso e higiene do sono. CONCLUSÕES: Há um descompasso entre as pesquisas sobre DRS na infância e sua abordagem na prática pediátrica.OBJECTIVES: assessment of opinions and practices of pediatricians concerning sleep-disordered breathing (SDB in children. METHODS: randomly 516 pediatricians were selected in the

  10. Qualidade de vida em crianças com distúrbios respiratórios do sono Quality of life in children with sleep-disordered breathing

    Directory of Open Access Journals (Sweden)

    Amaury de Machado Gomes

    2012-10-01

    Full Text Available Crianças podem apresentar distúrbios respiratórios do sono (DRS com repercussões na qualidade de vida. OBJETIVO: Avaliar a qualidade de vida de crianças com DRS, comparar crianças com Síndrome da Apneia Obstrutiva do Sono (SAOS e Ronco Primário (RP e identificar quais os domínios do OSA-18 estão mais comprometidos. MÉTODOS: Estudo de coorte histórica com corte transversal em crianças com história de ronco e hiperplasia adenotonsilar. Para avaliar qualidade de vida foi aplicado o questionário OSA-18 aos cuidadores e realizado polissonografia para diagnóstico. RESULTADOS: Participaram 59 crianças com média de idade de 6,7 ± 2,26 anos. O escore médio do OSA-18 foi 77,9 ± 13,22 e os domínios mais afetados foram: "preocupação dos responsáveis" (21,8 ± 4,25, "perturbação do sono" (18,8 ± 5,19, "sofrimento físico" (17,3 ± 5,0. O impacto foi pequeno em seis crianças (10,2%, moderado em 33 (55,9% e grande em 20 (33,9%. RP foi encontrado em 44 crianças (74,6%, SAOS em 15 (25,6%. SAOS tem escore maior no domínio "sofrimento físico" que RP (p = 0,04. CONCLUSÃO: Distúrbios respiratórios do sono na infância causam comprometimento na qualidade de vida e os domínios mais comprometidos do OSA-18 foram: "preocupação dos responsáveis", "perturbação do sono" e "sofrimento físico". SAOS tem o domínio "sofrimento físico" mais afetado que roncadores primários.Children may present sleep-disordered breathing (SDB and suffer with adverse effects upon their quality of life. OBJECTIVE: This study assessed the quality of life of children with SDB, compared subjects with obstructive sleep apnea syndrome (OSAS and primary snoring (PS, and identified which areas in the OSA-18 questionnaire are more affected. METHODS: This is a historical cohort cross-sectional study carried out on a consecutive sample of children with history of snoring and adenotonsillar hyperplasia. The subject's quality of life was assessed based on the

  11. Coexistência de transtornos respiratórios do sono e síndrome fibromiálgica Sleep disordered breathing concomitant with fibromyalgia syndrome

    Directory of Open Access Journals (Sweden)

    Dienaro Germanowicz

    2006-08-01

    Full Text Available OBJETIVO: Identificar síndrome fibromiálgica em pacientes com transtornos respiratórios do sono. MÉTODOS: Foram estudados 50 pacientes que compareceram à Clínica do Sono com queixas de roncar no sono, apnéias e sonolência diurna. Confirmou-se o diagnóstico de transtornos respiratórios do sono através de polissonografia. Para se estabelecer o diagnóstico de síndrome fibromiálgica, submeteram-se os pacientes a avaliação de acordo com os critérios estabelecidos pelo American College of Rheumatology. RESULTADOS: Estudaram-se 50 pacientes, 32 do sexo masculino. A média (± desvio-padrão de idade do grupo foi de 50 ± 12 anos. A média do índice de massa corporal do grupo foi de 29,7 ± 5,6 kg/m². A média do índice de apnéias e hipopnéias do grupo foi de 36 ± 29 apnéias e hipopnéias /hora. Nove das 18 mulheres e 2 homens preencheram os critérios estabelecidos pelo American College of Rheumatology para o diagnóstico de síndrome fibromiálgica. CONCLUSÃO: Considerando-se que a prevalência de síndrome fibromiálgica na população geral é de 0,5% para homens e de 3,4% para mulheres, a fração de casos de fibromialgia mais de dez vezes maior nesta amostra reforça a hipótese de associação entre transtornos respiratórios do sono e síndrome fibromiálgica.OBJECTIVE: To identify fibromyalgia syndrome in patients with sleep disordered breathing. METHOD: We studied 50 patients seeking treatment at a sleep disorder clinic for snoring, apnea and excessive daytime sleepiness. Sleep disordered breathing was diagnosed through the use of polysomnography. To diagnose fibromyalgia syndrome, patients were evaluated in accordance with the criteria established by the American College of Rheumatology. RESULTS: Of the 50 patients, 32 were male. The mean (± standard deviation age of the group was 50 ± 12 years. The mean body mass index was 29.7 ± 5.6 kg/m². The mean apnea-hypopnea index was 36 ± 29 attacks of apnea or hypopnea

  12. Analysis of sleep characteristics in post-polio syndrome patients Análise das características do sono em pacientes com síndrome pós-poliomielite

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    Tatiana Mesquita e Silva

    2010-08-01

    Full Text Available The main post-polio syndrome (PPS symptoms are new weakness, new atrophy, fatigue, pain and sleep disturbances. Polysomnography is the gold standard for sleep analysis. OBJECTIVE: To analyze sleep patterns in PPS patients. METHOD: Sixty patients (mean age 46.8±11.3 years at the Federal University of São Paulo (UNIFESP/EPM complaining of sleep disturbances were evaluated by means of polysomnography, performed at the Sleep Institute. RESULTS: Sleep efficiency was lower due to high sleep latency and arousal index. The apnea and hypopnea index (AHI and the periodic limb movements (PLM index were higher. Sleep architecture was also impaired. There were no abnormalities of oxygen saturation, carbon dioxide levels, respiratory rate or heart rate. CONCLUSION: New post-polio sleep disturbances were isolated symptoms. It appears that these symptoms were not due to post-polio features, but rather, that they were due to dysfunction of the surviving motor neurons in the brainstem. Abnormal dopamine production, which is responsible for many sleep-related breathing disorders and abnormal movements, may also have been implicated in the present findings.Dentre as manifestações clínicas da síndrome pós poliomielite (SPP destacam-se nova fraqueza, fadiga, dor, nova atrofia e transtornos do sono. A polissonografia de noite inteira permanece sendo padrão ouro para análise do sono e diagnóstico de transtornos do sono. OBJETIVO: Verificar os transtornos de sono nos pacientes com SPP. MÉTODO: 60 pacientes com SPP (media de idade 46,8±11,3 anos, da UNIFESP/EPM,que apresentavam queixas sobre sono realizaram uma noite de polissonografia no Instituto do Sono. RESULTADOS: A eficiência do sono é diminuída em decorrência do aumento da latência do sono e do índice de despertar. O índice de apnéia e hipopnéia (IAH e o índice de movimentos periódicos dos membros (iPLM estão aumentados. A arquitetura do sono é prejudicada por essas alterações. Não h

  13. Qualidade de sono e sua relação com o rendimento acadêmico em estudantes universitários de turnos distintos = Sleep quality and its relationship with academic performance in college students of different shifts

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    Araújo, Danilo de Freitas

    2012-01-01

    Full Text Available Analisou-se a correlação entre níveis de sonolência, qualidade do sono e rendimento acadêmico de graduandos. A amostra (média de idade: 24 anos, DP = 8,09 foi constituída por 109 estudantes do turno matutino e 125 do noturno. Preencheram ficha sócio-demográfica, Escala de Sonolência de Epworth e Índice de Qualidade de Sono de Pittsburgh. O rendimento acadêmico foi solicitado aos coordenadores dos cursos. Os resultados mostraram para sonolência média de 9,03 pontos (DP = 4,01 no turno matutino, e 9,7 (DP = 4,01 no noturno, e para qualidade do sono, 5,54 (DP = 2,99 e 5,53 (DP = 3,08, respectivamente. Foram constatadas diferenças significativas em sonolência (t = -29,55; p 0,05 e noturno (r = 0,03; p > 0,05. Os dados mostraram que os estudantes do turno noturno são mais sonolentos e possuem pior qualidade do sono, embora isso não influa sobre seu rendimento

  14. Is the population properly informed about sleep disorders? A população está devidamente informada sobre os distúrbios do sono?

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    Eleida Pereira Camargo

    2013-02-01

    Full Text Available OBJECTIVE: To measure the prior knowledge about sleep disorders and patient's ability to report their problems adequately to health professionals. METHODS: We analyzed 208 patient's records and extracted the following information: date of birth, gender, medical diagnostic hypotheses, patient's primary complaint in their words, considering the most appropriated semantic approximation to the perceptual phenomena, either by their own or by reasoning information from the partner. We compared the agreement (Kappa's test between patient's complaint and medical diagnosis. The 95% confidence interval was used to analyze proportions. RESULTS: We found strong correlations for bruxism; moderate for snoring, insomnia, nightmares, somniloquy, and restless legs syndrome; fair for excessive movement during sleep (EMDS and obstructive sleep apnea syndrome (OSA. CONCLUSIONS: The observed correlations were heterogeneous, but important diseases such as OSA and EMDS in children showed fair and weak correlations. This suggests an unsatisfactory knowledge level among the population about these disorders, despite their high prevalence and impact on patient's overall health.OBJETIVO: Avaliar o conhecimento da população investigada sobre os distúrbios do sono e sua capacidade de reportá-los adequadamente aos profissionais de saúde. MÉTODOS: Foram analisados ​​208 prontuários de pacientes, dos quais foram extraídos os seguintes dados: data de nascimento, sexo, hipótese diagnóstica médica e queixa principal do paciente. Foram comparadas as queixas e as hipóteses diagnósticas, considerando-se o intervalo de confiança de 95% para as proporções entre estas variáveis, determinando-se sua concordância por meio do teste Kappa. RESULTADOS: Foram encontradas concordâncias acentuadas em relação ao bruxismo; moderadas para ronco, insônia, pesadelos, sonilóquio e síndrome das pernas inquietas; concordância regular para movimentação excessiva durante o

  15. Is the population properly informed about sleep disorders? A população está devidamente informada sobre os distúrbios do sono?

    Directory of Open Access Journals (Sweden)

    Eleida Pereira Camargo

    2013-01-01

    Full Text Available OBJECTIVE: To measure the prior knowledge about sleep disorders and patient's ability to report their problems adequately to health professionals. METHODS: We analyzed 208 patient's records and extracted the following information: date of birth, gender, medical diagnostic hypotheses, patient's primary complaint in their words, considering the most appropriated semantic approximation to the perceptual phenomena, either by their own or by reasoning information from the partner. We compared the agreement (Kappa's test between patient's complaint and medical diagnosis. The 95% confidence interval was used to analyze proportions. RESULTS: We found strong correlations for bruxism; moderate for snoring, insomnia, nightmares, somniloquy, and restless legs syndrome; fair for excessive movement during sleep (EMDS and obstructive sleep apnea syndrome (OSA. CONCLUSIONS: The observed correlations were heterogeneous, but important diseases such as OSA and EMDS in children showed fair and weak correlations. This suggests an unsatisfactory knowledge level among the population about these disorders, despite their high prevalence and impact on patient's overall health.OBJETIVO: Avaliar o conhecimento da população investigada sobre os distúrbios do sono e sua capacidade de reportá-los adequadamente aos profissionais de saúde. MÉTODOS: Foram analisados ​​208 prontuários de pacientes, dos quais foram extraídos os seguintes dados: data de nascimento, sexo, hipótese diagnóstica médica e queixa principal do paciente. Foram comparadas as queixas e as hipóteses diagnósticas, considerando-se o intervalo de confiança de 95% para as proporções entre estas variáveis, determinando-se sua concordância por meio do teste Kappa. RESULTADOS: Foram encontradas concordâncias acentuadas em relação ao bruxismo; moderadas para ronco, insônia, pesadelos, sonilóquio e síndrome das pernas inquietas; concordância regular para movimentação excessiva durante o

  16. Qualidade de sono e função pulmonar em adolescentes portadores de anemia falciforme clinicamente estáveis Quality of sleep and pulmonary function in clinically stable adolescents with sickle cell anemia

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    Lisliê Capoulade Nogueira Arrais de Souza

    2007-06-01

    Full Text Available OBJETIVO: Avaliar a qualidade de sono e função pulmonar em adolescentes portadores de anemia falciforme (AF, clinicamente estáveis. MÉTODOS: Estudo trasversal descritivo de 50 pacientes portadores de AF submetidos a polissonografia noturna e espirometria no Hospital Universitário de Brasília. Analisamos dados antropométricos, polissonográficos e de função pulmonar. Dividimos os pacientes em dois grupos segundo a saturação periférica de oxigênio (SpO2 em sono com movimentos oculares rápidos (MOR: SpO2 93%. Realizamos estatística descritiva, teste t de Student, qui-quadrado e correlação de Pearson. RESULTADOS: A média de idade foi de 13,9 ± 2,5 anos. O tempo total de sono e percentagem do sono em MOR estavam diminuídos; dois pacientes (4% não apresentaram sono MOR. Latência de sono MOR, número de despertares, movimentação em sono, mudança de estágio, índice de distúrbios respiratórios e índice de apnéia obstrutiva estavam aumentados. Entre os dois grupos, houve diferenças estatisticamente significativas na maioria das variáveis polissonográficas. A SpO2 em sono MOR correlacionou-se de forma forte e positiva com a SpO2 em vigília, bem como com a SpO2 em sono não-MOR; e correlacionou-se de forma forte e negativa com a percentagem do tempo total de sono em que a SPO2 foi OBJECTIVE: To evaluate quality of sleep and pulmonary function in clinically stable adolescents with sickle cell anemia (SCA. METHODS: A cross-sectional descriptive study involving 50 patients with SCA submitted to nocturnal polysomnography and spirometry at the Brasília University Hospital. Anthropometric, polysomnographic and pulmonary function data were analyzed. Patients were divided into two groups according to oxygen saturation by pulse oximetry (SpO2 during rapid eye movement (REM sleep: SpO2 93%. Descriptive statistics, Student's t-test, chi-square test and Pearson's correlation coefficient were used. RESULTS: Mean age was 13.9 ± 2

  17. Electroencephalographic changes after one nigth of sleep deprivation Respostas eletrencefalográficas após uma noite de privação de sono

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    Camila Ferreira

    2006-06-01

    Full Text Available Total or partial sleep deprivation (SD causes degrading effects on different cognitive and psychomotor functions that might be related to electrophysiological changes frequently observed. In the present study, we investigated the effects of one night of sleep deprivation on waking EEG. Experimental protocol consisted of recording electroencephalographic data from eleven healthy young subjects before (baseline and after (time 2 one night of sleep deprivation. A natural log transformation was carried out and showed a significant increase in theta T6 (p=0.041, O2 (p=0.018 and OZ (p=0.028; and delta T6 (p=0.043 relative power; and a decrease in alpha Fp1 (p=0.040, F3 (p=0.013, Fp2 (p=0.033, T4 (p=0.050, T6 (p=0.018, O2 (p=0.011 and Oz (p=0.025 and beta (p=0.022 absolute power. These outcomes show that the EEG power spectra, after sleep deprivation, exhibit site-specific differences in particular frequency bands and corroborate for the premise of local aspects of brain adaptation after sleep deprivation, rather than global.Privação total ou parcial de sono causa efeitos deletérios em diferentes funções cognitivas e psicomotoras, que podem estar relacionados às mudanças eletrofísiológicas frequentemente observadas. No presente estudo, investigou-se os efeitos de uma noite de privação de sono nas respostas eletrencefalográficas de repouso. O protocolo experimental consistiu na coleta e gravação dos dados do qEEG de onze sujeitos jovens e saudáveis antes (momento baseline e após (momento 2 uma noite de privação de sono. Todos os dados sofreram transformação logarítmica, que evidenciou um aumento significativo nas potências relativas de teta T6 (p=0,041, O2 (p=0,018 e OZ (p=0,028; e delta T6 (p=0,043. As bandas de freqüência mais rápidas alfa Fp1 (p=0,040, F3 (p=0,013, Fp2 (p=0,033, T4 (p=0,050, T6 (p=0,018, O2 (p=0,011, Oz (p=0,025 e beta (p=0,022 apresentaram reduções significativas na potência absoluta. Os resultados

  18. Sono-chemical Synthesis Fe3O4-Mg(OH2 Nanocomposite and Its Photo-catalyst Investigation in Methyl Orange Degradation

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    G. Nabiyouni

    2014-10-01

    Full Text Available In this work firstly Fe3O4 nanoparticles were synthesized via a sono-chemical method. At the second step magnesium hydroxide shell was synthesized on the magnetite-core under ultrasonic waves. For preparation Fe3O4-MgO the product was calcinated at 400 ºC for 2h. Properties of the product were examined by X-ray diffraction pattern (XRD, scanning electron microscope (SEM and Fourier transform infrared (FT-IR spectroscopy. Vibrating sample magnetometer (VSM shows nanoparticles exhibit super-paramagnetic behavior. The photo-catalytic behavior of Fe3O4-Mg(OH2  nanocomposite was evaluated using the degradation of a methyl orange (MeO aqueous solution under ultraviolet (UV light irradiation. The results show that Fe3O4-Mg(OH2 nanocomposites have applicable magnetic and photo-catalytic performance.

  19. Sono, qualidade de vida e depressão em mulheres no pós-tratamento de câncer de mama

    OpenAIRE

    Rafihi-Ferreira,Renatha El; Pires,Maria Laura Nogueira; Soares,Maria Rita Zoéga

    2012-01-01

    Este trabalho investigou a qualidade de sono de mulheres com câncer de mama e suas relações com qualidade de vida e depressão. Cinqüenta mulheres com câncer de mama (grupo clínico) e cinqüenta controles responderam um questionário médico-demográfico e ao instrumento Pittsburgh Sleep Quality Index. O grupo clínico também respondeu aos instrumentos Quality of Life Cancer-Survivor e Brief Zung Self-Rating Depression Scale. Verificou-se que mulheres com câncer tinham significativamente mais queix...

  20. Fibromialgia: nível de atividade física e qualidade do sono Fibromyalgia: level of physical activity and quality of sleep

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    Raquel Munhoz da Silveira Campos

    2011-09-01

    Full Text Available O objetivo foi identificar o nível de atividade física e sua relação com sonolência excessiva diurna e qualidade de sono em 15 mulheres com fibromialgia, com idade média de 58±7 anos. Foi utilizado o Questionário Internacional de Atividade Física, o Índice de Qualidade de Sono de Pittsburgh e a Escala de Sonolência de Epworth. O programa SPSS Statistics versão 17 foi utilizado para as analises estatísticas e o valor para significância foi de α The objective was to identify the level of physical activity and its relation to excessive daytime sleepiness and sleep quality in 15 women with fibromyalgia and mean age 58 ± 7 years. We used the International Physical Activity Questionnaire, the Sleep Quality Index in Pittsburgh and Epworth Sleepiness Scale. We used SPSS Statistics Version 17 and the value for significance was α < 0.05. The results showed that 33,3% of patients rated themselves inactive and 66,7% minimally active. We observed excessive daytime sleepiness in 60% of patients. The poor quality of sleep was observed in 55,6% of patients in minimally active and 60% of inactive. The average time was 34,3 minutes to fall asleep, sleep efficiency was 81% and total sleep time was 5,9 hours. The low level of physical activity seems to be one of the factors that can worsen sleep quality in women with fibromyalgia.

  1. Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye.

    Science.gov (United States)

    Dindarsafa, Mahsa; Khataee, Alireza; Kaymak, Baris; Vahid, Behrouz; Karimi, Atefeh; Rahmani, Amir

    2017-01-01

    High energy planetary ball milling was applied to prepare sono-Fenton nanocatalyst from natural martite (NM). The NM samples were milled for 2-6h at the speed of 320rpm for production of various ball milled martite (BMM) samples. The catalytic performance of the BMMs was greater than the NM for treatment of Acid Blue 92 (AB92) in heterogeneous sono-Fenton-like process. The NM and the BMM samples were characterized by XRD, FT-IR, SEM, EDX and BET analyses. The particle size distribution of the 6h-milled martite (BMM 3 ) was in the range of 10-90nm, which had the highest surface area compared to the other samples. Then, the impact of main operational parameters was investigated on the process. Complete removal of the dye was obtained at the desired conditions including initial pH 7, 2.5g/L BMM 3 dosage, 10mg/L AB92 concentration, and 150W ultrasonic power after 30min of treatment. The treatment process followed pseudo-first order kinetic. Environmentally-friendly modification of the NM, low leached iron amount and repeated application at milder pH were the significant benefits of the BMM 3 . The GC-MS was successfully used to identify the generated intermediates. Eventually, an artificial neural network (ANN) was applied to predict the AB92 removal efficiency based upon the experimental data with a proper correlation coefficient (R 2 =0.9836). Copyright © 2016 Elsevier B.V. All rights reserved.

  2. Achados radiológicos em pacientes portadores de apneia obstrutiva do sono Radiological findings in patients with obstructive sleep apnea

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    Carlos Fernando de Mello Junior

    2013-02-01

    Full Text Available A apneia obstrutiva do sono (AOS é caracterizada por obstruções recorrentes das vias aéreas superiores durante o sono que ocorrem no nível da faringe. Apesar de a análise cefalométrica ser um importante método no diagnóstico das deformidades craniofaciais, a TC e a ressonância magnética vêm se destacando como os principais métodos de imagem para a investigação das eventuais causas da AOS que, na maioria das vezes, é multifatorial. Esses métodos permitem uma excelente avaliação nos diversos planos anatômicos do eventual sítio da obstrução, o que permite uma melhor avaliação clínica e abordagem cirúrgica. O presente ensaio pictórico tem como objetivo descrever os aspectos que devem ser avaliados no diagnóstico por imagem dos principais fatores predisponentes para a AOS.Obstructive sleep apnea (OSA is characterized by recurrent upper airway obstruction occurring at the level of the pharynx during sleep. Although cephalometric analysis is an important method in the diagnosis of craniofacial deformities, CT and magnetic resonance imaging have been highlighted as the major imaging methods to investigate the possible causes of OSA, which, in most cases, is multifactorial. Magnetic resonance and CT both allow an excellent evaluation of the various anatomical planes of the site of obstruction, which enables better clinical assessment and surgical approach. This pictorial essay aims to describe the aspects that must be evaluated in the diagnostic imaging of patients presenting with the major predisposing factors for OSA.

  3. Escala de sonolência de Epworth na síndroma de apneia obstrutiva do sono: uma subjetividade subestimada

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    C. Guimarães

    2012-11-01

    Full Text Available Resumo: A hipersonolência diurna é uma das manifestações mais relevantes da síndrome da apneia obstrutiva do sono (SAOS e pode ser avaliada quer por testes subjetivos quer por testes objetivos. A escala de sonolência de Epworth (ESE é um instrumento simples e validado que permite avaliar a sonolência diurna no contexto clínico de distúrbios do sono. No entanto, o seu caráter subjetivo pode condicionar a exata expressão do verdadeiro grau de sonolência. O uso clínico da ESE é demonstrado neste trabalho, mostrando que, no mesmo doente em momentos diferentes o score da ESE é díspar e como este score pode estar ou não relacionado em determinadas variáveis.Assim, comparamos o grau de sonolência basal com o grau de sonolência na mesma situação, mas avaliado retrospetivamente após tratamento com pressão positiva contínua das vias aéreas (Automatic Positive Airway Pressure – APAP.Realizamos um estudo prospetivo que incluiu 66 doentes observados na consulta de Patologia do Sono em que, após estudo poligráfico do sono ou cardiorrespiratório domiciliário, foi feito o diagnóstico de SAOS. Os doentes apresentavam uma idade média de 53,3 anos, sendo a maioria do sexo masculino (88%, n = 58. Os doentes preencheram o questionário da ESE no dia da primeira consulta (pré APAP e posteriormente, na consulta de seguimento, preencheram novamente a ESE referente ao período pós-tratamento com APAP e pediu-se, retrospetivamente, nova quantificação da ESE inicial. A média do score da ESE basal foi de 11,8, a retrospetiva de 15,4, com uma diferença média de 3,55 (p < 0,001 t-Test e após terapêutica com APAP 7,4. Não houve correlação entre a diferença do score da ESE (basal retrospetiva com a média de tempo de uso diário do APAP (horas, com o índice de apneia-hipopneia (IAH, com a SatO2 mínima registada

  4. Estudo comparativo de padrões de sono em trabalhadores de enfermagem dos turnos diurno e noturno Comparative study of sleep patterns in nurses working day and night shifts

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    Milva Maria Figueiredo de Martino

    2002-08-01

    Full Text Available Objetivo. Comparar os padrões de sono de enfermeiros dos turnos diurno e noturno em um hospital de Campinas (SP, Brasil. Métodos. Participaram 59 enfermeiros entre 23 e 59 anos. Para os enfermeiros do dia, analisou-se o sono noturno, e, para os da noite, os sonos diurno e noturno. Os informantes preencheram um diário do sono durante 1 semana, ao acordar. Foram analisados hora de ir deitar, de dormir, e de acordar; latência do sono; horas de sono noturno e diurno; cochilos; qualidade do sono; modo de acordar; e comparação do sono registrado no diário com o sono habitual. Também foram coletadas informações pessoais e profissionais. Resultados. O grupo diurno ia dormir às 23h36min e o grupo noturno, às 23h52min (P Objective. To compare sleep patterns in nurses working day and night shifts in a hospital in Campinas (SP, Brazil. Methods. Fifty-nine nurses between 23 and 59 years of age participated in the study. For day shift workers, the pattern of nocturnal sleep was examined; for night shift workers, nocturnal and diurnal sleep patterns were examined. During 1 week, participants filled out a sleep diary right after waking up. The following items were assessed: time going to bed, falling asleep, and waking up; sleep latency; duration in hours of nocturnal and diurnal sleep; naps; quality of sleep; mode of waking up; and comparison between the sleep recorded in the diary with the usual sleep. Personal and professional information was also collected. Results. Day shift workers went to bed at 23h36min, and night workers at 23h52min (P > 0.05. The nurses working a day schedule woke up earlier (7h3min than those working a night schedule when they slept at night (8h30min (P <= 0.004, Wilcoxon. Mean sleep latency was 23min26s for day shift nurses versus 22min50s for night shift nurses; the duration of nocturnal sleep was 7h11min and 9h6min, respectively. Only day workers took naps (mean 2h3min. The average diurnal sleep of night shift nurses

  5. Sleep disorders are associated with impulsivity in school children aged 8 to 10 years Distúrbios de sono associam-se com impulsividade em escolares de 8 a 10 anos de idade

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    Marilaine Medeiros

    2005-09-01

    Full Text Available CONTEXT: Sleep has an important function in the physical and emotional development of children. Some studies suggest an association between impulsivity and sleep disorders. However, little is known about this association in schoolchildren aged 8 to 10 years. METHOD: We studied 1180 children, 547 with sleep disorders (SD and 633 without SD (control group, classified with SD questionnaires. Within the SD group, 53 children with sleep-related respiratory disorders (SRRD and 521 children with non-respiratory sleep disorders (NRSD were analyzed. We acessed emotional indicators of impulsivity with Bender test. RESULTS: More SD children presented impulsivity than control group (pCONTEXTO: O sono tem função importante no desenvolvimento físico e emocional das crianças. Alguns estudos sugerem a associação de impulsividade e distúrbios do sono, sendo pouco conhecida esta associação em escolares na faixa etária de 8 a 10 anos. MÉTODO: Estudamos 1180 crianças, 547 com distúrbio do sono (DS e 633 normais (grupo controle, classificadas através de questionários sobre distúrbios do sono. Dentro do grupo DS, analisamos separadamente as crianças com distúrbio respiratório relacionado ao sono (DRRS e com distúrbios não respiratórios do sono (DNRS. Aplicamos o Teste Gestáltico de Bender (TB para detectar os indicadores emocionais de impulsividade. RESULTADOS: Maior número de crianças com DS apresentaram impulsividade em relação às crianças do grupo controle (p<0,05. Mais crianças de 10 anos de idade do grupo DNRS apresentaram impulsividade em relação ao grupo controle da mesma idade (p=0,001. Impulsividade e DRRS estiveram associados apenas entre as crianças de 8 anos de idade (p<0,05. CONCLUSÃO: Crianças com DS em geral, crianças com DRRS de 8 anos de idade, e crianças com 10 anos de idade do grupo DNRS apresentaram maior proporção de indicadores de impulsividade do que crianças do grupo controle.

  6. A genética dos distúrbios do sono na infância e adolescência The genetics of sleep disorders in childhood and adolescence

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    Magda Lahorgue Nunes

    2008-08-01

    Full Text Available OBJETIVO: O objetivo deste artigo é revisar a literatura sobre a genética dos distúrbios do sono na infância e adolescência. FONTES DOS DADOS: As palavras-chave "sono" e "genética" foram usadas para pesquisar por artigos publicados nos últimos cinco anos no banco de dados MEDLINE. A seguir, seus resumos foram analisados. A pesquisa também incluiu artigos clássicos, com a primeira descrição dos genes. SÍNTESE DOS DADOS: A recorrência familiar de muitos distúrbios do sono é um achado freqüente, mas loci genéticos foram descobertos para poucos deles. Descrevemos aqui distúrbios do sono transmitidos por herança genética e também aqueles que apresentam altos índices de recorrência familiar, apesar de nenhum gene específico haver sido encontrado. CONCLUSÕES: Apesar da maioria dos distúrbios do sono ainda não terem uma base molecular identificada, técnicas modernas são cada vez mais utilizadas para determinar a contribuição dos genes ao sono e aos seus distúrbios associados. A importância clínica destas descobertas pode estar relacionada com a melhoria de métodos diagnósticos, mas também como alvo para o desenvolvimento de medicações específicas.OBJECTIVE: To review the literature regarding the genetics of sleep disorders in childhood and adolescence. SOURCES: Articles published in the past 5 years were searched on MEDLINE using the keywords sleep and genetics. Abstracts were then analyzed. Classical articles with the first description of genes were also included. SUMMARY OF THE FINDINGS: We often find familial recurrence in many sleep disorders. However, gene loci were discovered for only a few of them. We describe sleep disorders transmitted by genetic heritance and also those in that, although a gene was not found, familial recurrence is high. CONCLUSION: Although most of the sleep disorders do not have by now an identified molecular basis, modern techniques are being increasingly applied to determine the

  7. Padrões de sono de estudantes ingressantes na Graduação em Enfermagem Padrones de sueño de estudiantes de enfermería en lo primero-año Sleep patterns of first-year nursing students

    OpenAIRE

    Renata Furlani; Maria Filomena Ceolim

    2005-01-01

    Trata-se de estudo exploratório e descritivo com o objetivo de identificar os padrões de sono de estudantes ingressantes na graduação. Desenvolvido na Universidade Estadual de Campinas SP, os dados foram coletados em dois momentos distintos por meio do Índice de Qualidade de Sono de Pittsburgh. Durante as férias, os estudantes apresentaram melhor qualidade/ duração de sono e adoção de horários mais condizentes com seu cronotipo. Após o início das aulas, maior número apresentou sono de má qual...

  8. Síndrome da apneia obstrutiva do sono em motoristas de caminhão Obstructive sleep apnea syndrome in truck drivers

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    Lucia Castro Lemos

    2009-06-01

    Full Text Available OBJETIVO: Estimar a prevalência da síndrome da apneia obstrutiva do sono (SAOS e verificar os fatores associados à chance de desenvolver SAOS em motoristas de caminhão. MÉTODOS: A população desse estudo constituiu-se de motoristas de caminhão de duas filiais de uma empresa transportadora (n = 209, com idade média de 38,8 anos, sendo 98,5% do sexo masculino. O índice de massa corpórea médio foi de 26,5 ± 4,4 kg/m². Os participantes responderam questionários sobre dados sociodemográficos, atividade física e SAOS. A prevalência de SAOS foi estimada por meio do Questionário de Berlim e sua associação com os fatores estudados foi verificada pela análise de regressão univariada e multivariada. RESULTADOS: A prevalência de SAOS na população foi de 11,5%. Dos 209 motoristas, 72 (34,5% referiram dormir ao volante enquanto dirigiam ao menos uma vez e 81 (38,7% referiram roncar durante o sono. As variáveis estatisticamente significativas associadas à SAOS foram vínculo empregatício informal (OR = 0,27; p = 0,01, índice de massa corpórea > 25 kg/m² (OR = 13,64; p = 0,01 e qualidade do sono ruim (OR = 3,00; p = 0,02. CONCLUSÕES: Apesar de a prevalência de SAOS ter sido inferior à observada em outros estudos com motoristas, essa prevalência é superior à da população em geral. Os resultados ainda sugerem que as características do trabalho, entre as quais o vínculo de trabalho, estão associadas à SAOS. Esses dados evidenciam a relevância de se levar em consideração a atividade de trabalho em estudos que investiguem fatores associados à SAOS.OBJECTIVE: To determine the prevalence of obstructive sleep apnea syndrome (OSAS, as well as to identify factors associated with a greater risk of developing OSAS, among truck drivers. METHODS: The study population comprised 209 truck drivers (mean age, 38.8 years; 98.5% males at two branches of a transportation company. The mean body mass index was 26.5 ± 4.4 kg/m². The

  9. Pontas positivas occipitais transitórias no eletrencefalograma de pacientes epilépticos submetidos a privação do sono Sleep occipital positive transient spikes seen at EEG of epileptic patients submitted to sleep deprivation

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    Gilson Edmar Gonçalves e Silva

    2007-06-01

    Full Text Available OBJETIVO: Comparar o aparecimento do grafoelemento de ponta positiva occipital transitória do sono em eletrencefalograma (EEG de pacientes epilépticos com e sem privação do sono, como método de ativação. MÉTODO: Foram analisados 40 EEG de 20 pacientes epilépticos com idade variando de 12 a 43 anos sendo 60% do sexo masculino, atendidos no Hospital das Clínicas da Universidade Federal de Pernambuco, no período de 1995 a 2000. Foram incluídos pacientes com epilepsia diagnosticada clinicamente e EEG sem alteração. Cada paciente foi submetido a um EEG sem privação de sono e outro após 36 horas de privação. O registro dos dois EEG foi separado por intervalo de 48 horas, obedecendo ao protocolo padrão. O efeito da privação do sono foi avaliado pelo aparecimento do grafoelemento PPOTS durante o estágio NREM do sono. RESULTADOS: No EEG sem privação do sono, a PPOTS foi identificada em 6 (30% pacientes no estágio I e em 1 (5% paciente em ambos os estágios I e II NREM. Após privação do sono, PPOTS estiveram ausentes em apenas um paciente, mas presentes em 25% casos no estágio I NREM e em 70%, nos estágios I e II NREM. CONCLUSÃO: O aumento da freqüência de PPOTS após privação do sono, parece indicar a existência da liberação de neurotransmissores excitatórios, o que pode contribuir significativamente para a investigação da excitabilidade cerebral.OBJECTIVE: To compare the presence of "sleep occipital positive transient spikes" (SOPTS in the electroencephalogram (EEG of epileptic patients without sleep deprivation (SD to those with SD, as an activation method. METHOD: The author analyzed 40 EEG of 20 epileptic patients, aging from 12 to 43 years, 60%, males. Those patients were attempted at the Clinics Hospital of Universidade Federal de Pernambuco, from 1995 to 2000. Every patient included in this study had epilepsy clinically diagnosed and all EEG without abnormalities. Each subject was submitted to one EEG

  10. Sleep quality in type 2 diabetics Calidad del sueño en diabéticos tipo 2 Qualidade do sono em diabéticos do tipo 2

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    Maria Carolina Belo da Cunha

    2008-10-01

    Full Text Available Sleeping disorders in type 2 diabetic patients constitute risk factors for aggravating diabetes since they can affect the metabolic control through insulin resistance syndrome. This was an observational, cross-sectional study. The majority (52% of subjects had scores indicating poor sleep quality. The Pittsburgh Sleep Quality Index (PSQI scores showed patients with a time after diagnosis over 10 years and hypertension had the poorest sleep quality. For those with hemoglobin A1c > 7% taking sleeping medicines and those who had normal body mass index (BMI, the sleep quality was even poorer. The findings of the present study reinforce the relevance of this topic since there are no specific tools for sleep evaluation of type 2 diabetics making it difficult to make any assertions on the sleep quality of these patients.Los disturbios del sueño en diabéticos del tipo 2, constituyen factores de riesgo para el agravamiento de la diabetes, pues pueden interferir en el control metabólico a través del síndrome de la resistencia a la insulina. El estudio fue del tipo observacional-transversal. La calidad del sueño fue investigada en 50 diabéticos del tipo 2, a quienes se aplicó el Índice de Calidad del Sueño de Pittsburgh (PSQI. La mayoría (52% presentó puntuaciones del PSQI, que indican calidad del sueño mala. Aquellos con tiempo de diagnóstico superior a 10 años y con hipertensión poseían peor calidad del sueño. Para aquellos con valores de Hemoglobina A1c > 7%, que usaban medicamentos para dormir y los que presentaron IMC normal, la calidad del sueño se mostró peor. Lo encontrado en esta investigación refuerza la relevancia de la temática, ya que no existen instrumentos específicos para evaluar el sueño del diabético del tipo 2, dificultando afirmaciones sobre la calidad del sueño del diabético.Distúrbios do sono em diabéticos do tipo 2 constituem fatores de risco para o agravamento do diabetes, pois podem interferir no

  11. Síndrome da apnéia-hipopnéia obstrutiva do sono. Fisiopatologia Physiopathology of obstructive sleep apnea-hypopnea syndrome

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    Andrea Barral Martins

    2007-02-01

    Full Text Available A fisiopatogenia da apnéia obstrutiva do sono é multifatorial. O sexo, a obesidade, os fatores genéticos, anatômicos e hormonais e o controle da ventilação interagem diversamente na fisiopatogenia e expressão clínica da doença. A obesidade é o principal fator de risco, sendo a elevação do índice de massa corpórea, da gordura visceral e da circunferência do pescoço, fortes preditores de sua ocorrência. A progesterona, por aumentar a atividade dos músculos dilatadores das vias aéreas superiores, tem papel protetor nas mulheres antes da menopausa, justificando a maior prevalência da doença na pós-menopausa, no sexo masculino e na síndrome dos ovários policísticos. Evidências apontam para o fato de que o aumento da idade promove diminuição do tônus muscular, com redução da luz das vias aéreas superiores. O dismorfismo crânio-facial, como na retrognatia ou micrognatia, está associado ao posicionamento posterior da língua, e pode resultar em estreitamento da luz das vias aéreas superiores. Finalmente, comando ventilatório reduzido tem sido detectado em pacientes com síndrome de apnéia obstrutiva do sono e hipercapnia.The physiopathology of obstructive sleep apnea syndrome is multifactorial. Gender and obesity status, as well as genetic, anatomic, and hormonal factors, together with ventilatory drive, interact in a diverse manner in the physiopathology and clinical expression of the disease. Obesity is the main risk factor, since increases in body mass index, visceral fat, and neck circumference are strong predictors of the disease. Progesterone increases the activity of the upper airway dilator muscles and therefore plays a protective role in premenopausal women. This explains the fact that the prevalence of the disease is higher in postmenopausal patients, in patients with polycystic ovary syndrome, as well as in males. Evidence supports the fact that, as individuals grow older, there is a decrease in muscle

  12. Cognitive dysfunction in children with sleep disorders Disfunção cognitiva em crianças com distúrbios do sono

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    Luciane Bizari Coin de Carvalho

    2004-06-01

    Full Text Available Sleep is basic for physical and cognitive development and some studies have suggested that there may be an association between sleep disorders (SD and cognitive dysfunction (CD in children. Little is known, however, about SD and cognition in 7-10-year-old children, a fact that motivated the present study. METHOD: We applied an SD questionnaire in 1180 children, 547 with SD and 633 without SD (CG, to assess cognition with a screening test (Bender Visual Motor Gestalt Test - BT. RESULTS: We observed a similar frequency of CD in the children with SD (39% and that ot the CG (40%. The 8-year-old children with SD presented a lower prevalence of CD than the CG (SD=6%, n=6; CG=13%, n=16; p=0.04. CONCLUSION: The frequency of children with CD was equal in the study and control groups when considering the total sample (7- to 10-year-old children. In contrast to our expectations, the SD group of 8-year-old children presented a lower frequency of CD than the control group.O sono é fundamental no desenvolvimento físico e cognitivo, vários estudos na literatura sugerem haver associação entre distúrbio do sono (DS e disfunões cognitivas (DC em crianças. Pouco se sabe, no entanto, sobre DS e cognição na faixa etária de 7 a 10 anos, motivo porque empreendemos este estudo. MÉTODO: Aplicamos um questionário de DS em 1180 crianças: 547 com DS e 633 sem DS (GC, avaliandose cognição pelo Teste Gestáltico de Bender (TB. RESULTADOS: Observamos proporção semelhante de DC nas crianças com DS (39% e nas do GC (40%. As crianças de 8 anos do DS apresentaram menor prevalência de DC do que as do GC (DS=6%, n=6; GC=13%, n=16; p=0,04. CONCLUSÃO: A proporção de crianças com DC foi igual nos grupos estudo e controle quando consideramos a amostra total (crianças de 7 a 10 anos. Contrariando nossas expectativas, o grupo DS de 8 anos apresentou menos DC que o grupo controle.

  13. Siestas among Brazilian native Terena adults: a study of daytime napping Sono diurno em indígenas Terena: um estudo da sesta

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    RUBENS REIMÃO

    2000-03-01

    Full Text Available Regular daytime napping behavior, also known as siesta culture, is influenced by circadian, cultural and environmental factors. This research analyzes characteristics of regular daytime napping in Brazilian Native Terenas. We evaluared 65 adults ( 32 M; 33 F from 18 to 75 years, with a mean age of 37.2, from the Indian Reservation village Córrego do Meio, in the central region of Mato Grosso do Sul. Daytime napping characteristics were evaluated by means of a standard questionnaire applied to each individual. It was observed that weekly daytime napping (at least once a week was present in 72.3% of the population. There was a tendency to occur in males. The effects of weekends was mild. Mean onset time of daytime sleep was 12.2 h, remarkably earlier than usually described in urban populations. This data stresses the need to consider ethnic influences in order to understand sleep habits.O comportamento de dormir regularmente durante o dia, denominado cultura de sesta, é influenciado por fatores circadianos, culturais e ambientais.Esta pesquisa buscou verificar as características do sono diurno regular em indígenas Terena. Avaliamos 65 adultos (32 M; 33 F de 18 a 75 anos de idade (média 37,2 anos da aldeia Córrego do Meio, situada em reserva indígena na região central de Mato Grosso do Sul. As características do sono diurno foram avaliadas por meio de questionário padronizado. Como resultado, verificamos que 72,3% dos indivíduos apresentavam sesta, pelo menos uma vez por semana. Este hábito tendeu a ser mais encontrado no sexo masculino. Apenas 9,2% referiram sesta só nos fins de semana. O horário de sesta foi acentuadamente mais cedo do que o descrito em populações urbanas, iniciando a sesta em média às 12,2 h. É necessário ponderar as influências étnicas para compreender as características do dormir.

  14. Avanços recentes do impacto da apneia obstrutiva do sono na hipertensão arterial sistêmica

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    Rodrigo P. Pedrosa

    2011-08-01

    Full Text Available A apneia obstrutiva do sono (AOS é uma condição clínica comum na população em geral, principalmente entre os pacientes portadores de doenças cardiovasculares. Mais do que um fenômeno local de obstrução das vias aéreas superiores, a AOS traz repercussões sistêmicas que podem incluir a hipóxia intermitente, a redução abrupta da pressão intratorácica e a ocorrência de microdespertares com fragmentação do sono. Nas últimas décadas, inúmeras evidências apontam de forma consistente a AOS como um importante fator envolvido na ocorrência de doenças cardiovasculares. Particularmente, a relação entre a AOS e a hipertensão arterial sistêmica (HAS é a que encontra um maior conjunto de evidências. Atualmente, encontram-se dados que consideram a AOS uma importante causa secundária de HAS. Mais do que isso, a AOS está independentemente associada a um pior controle pressórico, alteração do descenso noturno da pressão arterial e à presença de lesões de órgãos-alvo, tais como a hipertrofia do ventrículo esquerdo e a microalbuminúria. Estudos randomizados sugerem que o tratamento da AOS, especialmente com a pressão positiva contínua de vias aéreas superiores (CPAP, considerado o tratamento padrão para a AOS, promove redução significante da pressão arterial nas 24 horas, efeito esse mais significante no subgrupo de pacientes com HAS não controlada e nos pacientes com HAS resistente. A despeito de todas essas evidências, a AOS ainda continua sendo subdiagnosticada. O objetivo desta revisão é discutir os recentes avanços nos mecanismos fisiopatológicos, na apresentação clínica e no tratamento da AOS, e o benefício sobre a pressão arterial.

  15. Síndrome da apneia obstrutiva do sono (Saos e sonolência diurna excessiva (SDE: influência sobre os riscos e eventos de queda em idosos

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    Renata Afonso Burgos

    Full Text Available INTRODUÇÃO: Muitos países vêm experimentando o processo de envelhecimento populacional e a consequente elevação das doenças associadas a ele, como dificuldade de manter o equilíbrio, perdas na qualidade do sono e síndrome da apneia obstrutiva do sono (Saos. OBJETIVOS:Investigar a correlação entre a Saos e sonolência diurna excessiva (SDE com os riscos e eventos de quedas em indivíduos idosos. MATERIAIS E MÉTODOS:Estudo descritivo, comparativo, de corte transversal com amostra de 75 indivíduos com idade igual ou superior a 60 anos, gêneros masculino e feminino. Foram utilizados o mini-exame do estado mental; escalas de depressão geriátrica simplificada; de sonolência de epworth; de avaliação do equilíbrio de tinneti; índice de massa corporal (IMC; registros estabilométricos das oscilações posturais ântero-posterior (AP e médio-lateral (ML. RESULTADOS: Maior prevalência de Saos no gênero masculino. Não foi encontrada correlação com significância estatística (Pearson, p ≤ 0,01 entre as variáveis IMC e estabilometria. Não houve correlação estatisticamente significativa (ANOVA, p ≤ 0,05 entre IMC (subgrupos normal, sobrepeso, graus I, II, III, e IV e estabilometria; entre os graus de severidade de Saos e estabilometria; entre dados estabilométricos de subgrupos de IMC e mesmo grau de severidade de Saos; entre dados estabilométricos de subgrupos de IMC e diferentes graus de Saos; entre os diferentes graus de Saos (GC, G1, (GC e G2, subgrupos de IMC e registros estabilométricos. CONCLUSÃO: Não foram encontrados resultados que corroborassem a hipótese de proporcionalidade entre graus de severidade de Saos, IMC e registro estabilométrico.

  16. Perturbação respiratória durante o sono em doença pulmonar obstrutiva crônica Respiratory disturbance during sleep in chronic obstructive pulmonary disease

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    Ana C. Krieger

    2005-04-01

    Full Text Available A doença pulmonar obstrutiva crônica é uma condição freqüente e é hoje a quarta principal causa de mortes nos Estados Unidos. A prevalência de perturbação respiratória durante o sono, ou síndrome de superposição, como anteriormente denominada, ainda não foi determinada devido à publicação de relatos conflitantes. Esta condição deve continuar sendo investigada devido aos efeitos adversos causados por transtornos respiratórios relacionados ao sono em pacientes com doença pulmonar de base. Neste relato, discutiremos brevemente os mecanismos envolvidos na origem da perturbação respiratória durante o sono em doença pulmonar obstrutiva crônica e auxiliaremos o leitor a distinguir àqueles pacientes que se beneficiariam de uma avaliação do padrão do sono mais detalhada, com a discussão de tópicos de gerenciamento e opções de tratamento.Chronic obstructive pulmonary disease is a prevalent condition and is currently the forth leading cause of mortality in the US. The prevalence of respiratory disturbance during sleep, or overlap syndrome as it was commonly known in the past, is still undetermined as conflicting reports have been published. Because of the adverse effects of sleep-related respiratory impairment in patients with underlying pulmonary disease, this condition deserves further investigation. In this report, we will briefly discuss the mechanisms involved in generating respiratory disturbance during sleep in Chronic Obstructive Pulmonary Disease and will guide the reader into distinguishing those patients who would benefit from a more detailed sleep evaluation, discussing management issues and treatment options.

  17. Sleep disturbances in 50 children with attention-deficit hyperactivity disorder Distúrbios do sono em 50 crianças com transtorno do déficit de atenção e hiperatividade

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    Sergio Nolasco Hora das Neves

    2007-06-01

    Full Text Available OBJECTIVE: This study assesses the relationship between sleep disturbances (SD and attention-deficit and hyperactivity disorder (ADHD to characterize clinical features and associated problems. METHOD: The medical records of 50 children and adolescents ranging in age from 4 to 17 years with ADHD without the diagnosis of mental retardation or pervasive developmental disorders were reviewed. RESULTS: Significant relationships were found between SD and drug therapy (pOBJETIVO: Avaliar a associação entre transtorno do déficit de atenção e hiperatividade (TDAH e distúrbios do sono para caracterizar fatores clínicos e problemas associados. MÉTODO: Foram revistos prontuários de 50 crianças e adolescentes com idade entre 4 e 17 anos e consecutivo diagnóstico de TDAH sem diagnóstico de retardo mental ou transtornos invasivos do desenvolvimento. RESULTADOS: Foram encontradas associações significativas entre alterações do sono e farmacoterapia (p<0,01, comorbidade (p<0,01 e maior aderência ao tratamento prescrito para sintomas de TDAH (p<0,05. CONCLUSÃO: Os resultados deste estudo sugerem que alterações do sono são relevantes em crianças com TDAH e podem estar associadas a aumento dos sintomas.

  18. Influence of ultrasound power on acoustic streaming and micro-bubbles formations in a low frequency sono-reactor: mathematical and 3D computational simulation.

    Science.gov (United States)

    Sajjadi, Baharak; Raman, Abdul Aziz Abdul; Ibrahim, Shaliza

    2015-05-01

    This paper aims at investigating the influence of ultrasound power amplitude on liquid behaviour in a low-frequency (24 kHz) sono-reactor. Three types of analysis were employed: (i) mechanical analysis of micro-bubbles formation and their activities/characteristics using mathematical modelling. (ii) Numerical analysis of acoustic streaming, fluid flow pattern, volume fraction of micro-bubbles and turbulence using 3D CFD simulation. (iii) Practical analysis of fluid flow pattern and acoustic streaming under ultrasound irradiation using Particle Image Velocimetry (PIV). In mathematical modelling, a lone micro bubble generated under power ultrasound irradiation was mechanistically analysed. Its characteristics were illustrated as a function of bubble radius, internal temperature and pressure (hot spot conditions) and oscillation (pulsation) velocity. The results showed that ultrasound power significantly affected the conditions of hotspots and bubbles oscillation velocity. From the CFD results, it was observed that the total volume of the micro-bubbles increased by about 4.95% with each 100 W-increase in power amplitude. Furthermore, velocity of acoustic streaming increased from 29 to 119 cm/s as power increased, which was in good agreement with the PIV analysis. Copyright © 2014 Elsevier B.V. All rights reserved.

  19. Síndroma de apneia obstrutiva do sono como causa de acidentes de viação

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    M. Aguiar

    2009-05-01

    Full Text Available Resumo: Vários estudos demonstram que os doentes com síndroma de apneia obstrutiva do sono (SAOS têm um risco aumentado de acidentes de viação. O objectivo do presente trabalho consistiu em analisar, nestes doentes, se há diferenças nos que referem acidentes e/ /ou quase acidentes e aqueles que o não fazem.Material e métodos: Estudaram-se prospectivamen-te 163 doentes com SAOS (índice apneia/hipopneia (IAH>10/h diagnosticados por polissonografia noc-turna (PSG, todos condutores de veículos, 18,4% do quais profissionais. Na altura da entrevista clínica foi inquirido se tinham tido, nos três anos antes acidentes e/ou quase acidentes devido a hipersonia diurna (Grupo II=74 ou não (Grupo I=89.Estes dois grupos foram comparados quanto a: idade, índice de massa corporal (IMC, escala de sonolência de Epworth (ESE, PaO2 e PaCO2 diurnas, avaliação da qualidade de vida pelo inquérito Functional Outcomes of Sleep Questionnaire (FOSQ teste e dados da polissonografia – tempo total de sono (TTS, eficiência do sono, estádios do sono, índice de microdespertares (IMD, índice de apneia/hipopneia (IAH, SaO2 mínima e média, % tempo SaO210/h diagnosed using nocturnal polysomnography (NPSG, all drivers, 18.4% of whom drove for a living. Patients were asked at their first clinical interview to self-report road traffic accidents and/or near misses over the past 3 years which had been caused by abnormal daytime drowsiness. This allowed patients to be divided into two groups, those who had had road traffic accidents and/or near misses and those who had not. Both were compared as to age, body mass index (BMI, Epworth Sleepiness Scale (ESS, daytime PaO2 and PaCO2, Functional Outcomes of Sleep Questionnaire (FOSQ test and NPSG data. This latter was total sleep time (TTS, sleep efficiency, sleep stages, arousal index (ARI, AHI, minimal and average SaO2, % of time with SaO2<90% (T90, desaturation

  20. Big endotelina-1 e óxido nítrico em pacientes idosos hipertensos com e sem síndrome da apneia-hipopneia obstrutiva do sono

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    Iara Felicio Anunciato

    2013-10-01

    Full Text Available FUNDAMENTO: O papel do estresse oxidativo em pacientes idosos hipertensos com síndrome de apneia-hipopneia obstrutiva do sono (SAHOS é desconhecido. Objetivo: O objetivo foi avaliar os níveis de Big Endotelina-1 (Big ET-1 e Óxido Nítrico (NO em pacientes idosos hipertensos com e sem SAHOS moderada a grave. MÉTODOS: Os voluntários permaneceram internados durante 24 horas. Obtivemos os seguintes dados: índice de massa corporal (IMC, Monitorização Ambulatorial da Pressão Arterial (MAPA - 24 horas, e medicação atual. Sangue arterial foi coletado às 7:00 h e às 19:00 h para determinar níveis plasmáticos de NO e Big ET-1. A oximetria de pulso foi realizada durante o sono. A correlação de Pearson, Spearman e análise de variância univariada foram utilizadas para a análise estatística. RESULTADOS: Foram estudados 25 sujeitos com SAHOS (grupo 1 e 12 sem SAHOS (grupo 2, com idades de 67,0 ± 6,5 anos, 67,8 ± 6,8 anos, respectivamente. Não foram observadas diferenças significativas entre os grupos em IMC; no número de horas de sono; PA diastólica e sistólica em 24 h; PA de vigília; PA no sono; ou medicamentos usados para controlar a PA. Não foram detectadas diferenças nos níveis de NO e Big ET-1 plasmáticos às 19:00 h, mas às 7:00 h os níveis de de Big ET-1 foram mais altos (p = 0,03. No grupo 1, correlação negativa também foi observada entre a saturação de oxihemoglobina arterial média e a PA sistólica - 24 horas (p = 0,03, r = -0,44, e Big ET-1 (p = 0,04, r = 0,41. CONCLUSÕES: Na comparação entre idosos hipertensos com e sem SAHOS com PA e IMC semelhantes, observou-se níveis mais elevados de Big ET-1 após o sono no grupo SAHOS. Os níveis de NO não diferiram entre os pacientes hipertensos com ou sem SAHOS.

  1. Sleep disturbances and prevalence of depression in systemic lupus erythematosus patients receiving intravenous cyclophosphamide Alterações do sono e prevalência de depressão em pacientes lúpicos em uso de pulsoterapia com ciclofosfamida

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    Rafael Carvalho Mesquita

    2007-12-01

    Full Text Available BACKGROUND: Pulse i.v. cyclophosphamide is a therapeutic option in severe forms of systemic lupus erythematosus (SLE. However, the overall toxicity and risk profile are yet to be adequately defined. OBJECTIVE: To evaluate the occurrence of sleep disturbances in SLE patients subjected to i.v. cyclophosphamide. METHODS: We studied thirty consecutive SLE patients (27 female age range 14 to 53 years (mean 30.5 ± 10 years that received i.v. cyclophosphamide (mg (mean 948.27 ± 221.39. Depressive symptoms, quality of sleep, and the presence of excessive daytime sleepiness were evaluated. Disease severity was assessed by the SLEDAI. Quality of sleep was assessed by the Pittsburgh Sleep Quality Index (PSQI and excessive daytime sleepiness (EDS by the Epworth Sleepiness Scale (ESS. Depressive symptoms were evaluated using the 21-item Beck Depression Inventory (BDI. RESULTS: SLEDAI values ranged from 2 to 46 (mean 17 ± 11.4. The most common comorbidities were systemic arterial hypertension (30%, anemia (23.3%, osteoporosis (23.3%, and cardiomyopathy (6.6%. Seizures occurred in one patient (3.3%. Poor quality of sleep (PSQI e" 6 and EDS (ESS >10 were found in 66.7% and 30% of the patients, respectively. Depressive symptoms (BDI >19 were present in 40% of the patients and were associated with poor sleep quality (P = 0.03. CONCLUSIONS: Our findings show an increased prevalence of poor sleep quality and depressive symptoms in SLE patients receiving pulse i.v. cyclophosphamide. These findings were similar to other previously reported series of SLE patients regardless of the therapies used.INTRODUÇÃO: O uso de ciclofosfamida endovenosa é uma opção terapêutica nas formas graves de lúpus eritematoso sistêmico (LES. No entanto, a toxicidade e o perfil de risco ainda não estão adequadamente definidos. OBJETIVO: Avaliar sobre a ocorrência de alterações do sono em pacientes portadores de LES submetidos à terapia com ciclofosfamida endovenosa. M

  2. Avaliação comportamental em crianças com disturbios obstrutivos do sono Behavioral evaluation in children with obstructive sleep disorders

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    Sandra Fumi Hamasaki Uema

    2006-02-01

    Full Text Available Os distúrbios obstrutivos do sono são relativamente freqüentes na população pediátrica. Em crianças, SAOS resultaria em conseqüências clínicas significantes, incluindo atraso do crescimento, disfunção ventricular direita e esquerda e problemas de aprendizagem e comportamento. OBJETIVO: Avaliar o comportamento em crianças com distúrbio obstrutivo do sono. MATERIAL E MÉTODO: Pais de crianças de 4 a 18 anos de idade do Centro do Respirador Bucal da UNIFESP-EPM de janeiro a julho de 2005. Foi aplicado o CBCL/4-18 (Child Behavioral Checklist ou inventário de comportamento de crianças e adolescentes. RESULTADOS: Foram avaliadas 20 crianças. Dessas, 12 eram meninos e 8, meninas. O escore total do problema foi anormal em 5 crianças (25%. A escala de introversão foi anormal em 2 pacientes (10%. A escala de extroversão foi anormal em 5 pacientes (25%. As escalas de síndromes individuais foram anormais entre 0 e 20% dos pacientes. As escalas individuais que foram mais afetadas são as seguintes: competência total (20%, queixas somáticas (10%, problemas sociais (10% e comportamento agressivo (10%. DISCUSSÃO: Este estudo demonstra alta prevalência (25% de comportamento anormal. Embora largamente citado como uma complicação comum de SAOS na infância, distúrbios comportamentais e neurocognitivos têm sido inferidos em séries de casos e estudos. Existem poucos trabalhos usando medidas padronizadas para avaliar os distúrbios comportamentais e de desenvolvimento.AIM: The purpose of this study was to evaluate the behavior in children with obstructive sleep disorder. STUDY DESIGN: Prospective study. MATERIAL AND METHOD: Children’s parents (4 to 18 years old completed the CBCL4/18 (Child Behavior Checklist in the period of January to July 2005. RESULTS: In the group, 12 (60% were males and 8 (40% females; the total problem score was abnormal in 5 children (25%; introversion was affected in 2 children (10%; extroversion in 5

  3. Hipersonolência diurna e variáveis polissonográficas em doentes com síndroma de apneia do sono Daytime sleepiness and polysomnographic variables in sleep apnoea patients

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    O Mediano

    2007-12-01

    Full Text Available A síndroma de apneia obstrutiva do sono (SAOS caracteriza-se por episódios repetidos de obstrução da via aérea superior, hipoxemia nocturna e fragmentação do sono. A hipersonolência diurna constitui um sintoma frequente nos doentes com esta síndroma, embora possa estar ausente. A sua presença representa uma limitação significativa da qualidade de vida do indivíduo, bem como um aumento da morbilidade e mortalidade da SAOS, visto ser um importante factor de risco para acidentes de viação e laborais, podendo originar alterações cognitivo-comportamentais relevantes. O mecanismo desencadeante de hipersonolência diurna não é claro. Alguns autores relacionaram esta com a arquitectura anormal do sono, o que, no entanto, não foi confirmado por outros investigadores. Alguns estudos salientaram a relação entre a hipersonolência diurna e os níveis de dessaturação nocturna da oxi-hemoglobina, mas este facto não foi comprovado cientificamente. O objectivo do presente trabalho foi analisar quais os mecanismos responsáveis pela sonolência diurna nos doentes com SAOS. Assim, numerosas variáveis registadas no estudo polissonográfico foram comparadas em dois grupos de indivíduos com esta patologia, apresentando um deles hipersonolência diurna inequívoca e o outro a total ausência da mesma. Foram avaliados 65 indivíduos seguidos no Departamento Respiratório do Hospital Universitário do Son Dureta (Palma de Maiorca que possuíam no registo poligráfico nocturno um índice de apneia/hipopneia (IAH >20/h. A sonolência excessiva foi determinada utilizando a escala de sono de Epworth (ESE e o teste de latência múltipla. A sua presença foi considerada sempre que o score de ESE >10 e o score do teste de latência múltipla 10 min. Cerca de 25 indivíduos foram excluídos devido a discrepância entre os resultados das referidas determinações. Dos 40 doentes restantes, 23 apresentavam hipersonolência diurna e 17 não. Nenhum dos

  4. [La combinazione di gemcitabina e oxaliplatino (GEMOX) nel trattamento del carcinoma pancreatico in fase avanzata di malattia: le notizie sulla mia morte sono state esagerate?

    Science.gov (United States)

    Giuliani, Jacopo; Bonetti, Andrea

    2017-12-01

    Riassunto. L'analisi è stata condotta al fine di valutare l'effetto sia sulla sopravvivenza globale (OS) sia sulla sopravvivenza libera da progressione di malattia (PFS) della chemioterapia di combinazione in prima linea per il carcinoma pancreatico in fase avanzata di malattia. La presente analisi è limitata agli studi randomizzati controllati (RCT) di fase III. Successivamente è stata applicata la European Society for Medical Oncology Magnitude of Clinical Benefit Scale (ESMO-MCBS) agli RCT di fase III analizzati per ricavare uno score relativo all'entità del beneficio clinico ottenuto per ciascun RCT. Sono state calcolate inoltre le differenze in termini di PFS tra i diversi bracci di trattamento rapportandole con i costi dei farmaci necessari per ottenere il beneficio di PFS. La nostra analisi ha valutato 11 RCT di fase III, per un totale di 4572 pazienti. Combinando i costi della terapia con la misura dell'efficacia espressa dalla PFS, è stato ottenuto un costo di 74,12 euro (€) per mese di vita guadagnato in termini di PFS con la combinazione di 5-fluorouracil, leucovorin, irinotecan e oxaliplatino (FOLFIRINOX), 90,14 € per la combinazione di gemcitabina e oxaliplatino (GEMOX) e 4708,7 € per la combinazione di nab-paclitaxel e gemcitabina. Da questo punto di vista riteniamo che l'utilizzo delle "vecche chemioterapie di combinazione" (per es., GEMOX) non dovrebbe essere completamente abbandonato, ma valutato sul singolo paziente, sulla base di diversi fattori (età, ECOG PS, comorbilità, carico di malattia), al fine di ottenere una reale "tailored therapy".

  5. Horas de sono e índice de massa corporal em pré-escolares do sul do Brasil Sleep duration and body mass index among southern Brazilian preschoolers

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    Maria Laura da Costa Louzada

    2012-12-01

    Full Text Available A prevenção e o tratamento do excesso de peso são particularmente complexos, reforçando a importância de estudos que visem esclarecer sua rede de causas e efeitos. Assim, o objetivo desse estudo foi avaliar a relação entre horas de sono noturnas e medidas antropométricas. Realizou-se uma análise transversal realizada a partir de dados de 348 crianças de 3 e 4 anos da cidade de São Leopoldo/ RS. As horas de sono noturnas foram relatadas pelas mães e as medidas de índice de massa corporal, circunferência da cintura e dobras cutâneas foram medidas de acordo com protocolo padrão. As análises foram ajustadas para consumo energético e horas de televisão assistidas. As crianças com excesso de peso apresentaram, em média, 0,39 horas a menos de sono em relação àquelas com peso adequado (9,77 ± 1,44 versus 10,17 ± 1,34; IC95% 0,03-0,76. Observou-se associação inversa entre horas de sono noturnas e valores de escore z de índice de massa corporal para idade (B = -0,12 IC95% -0,22--0,02. A circunferência da cintura e as dobras cutâneas apresentaram relação inversa com as horas de sono, porém sem diferença estatística. Em pré-escolares do sul do Brasil, menos horas de sono noturnas foram associadas com maiores valores de índice de massa corporal.Prevention and treatment of overweight are particularly complex, reinforcing the importance of studies aimed at clarifying their range of causes and effects. Thus, the objective of this study was to evaluate the relationship between night sleep duration and anthropometric measurements. A cross-sectional analysis was performed from data from 348 children aged 3 and 4 years in São Leopoldo/RS. Night sleep duration was reported by their mothers and body mass index, waist circumference and skinfold thickness were measured according to standard protocol. The analyses were adjusted for energy intake and hours of television watching. Overweight children had, on average, 0.39 hours less

  6. Quality of sleep in postoperative surgical oncologic patients La calidad del sueño en pacientes sometidos a cirugía oncológica Qualidade do sono em pacientes submetidos à cirurgia oncológica

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    Elizabeth Barichello

    2009-08-01

    Full Text Available This study aimed to evaluate surgical-oncologic patients' quality of sleep through the Pittsburgh Sleep Quality Index (PSQI questionnaire. It is an exploratory study with transversal-observational design, in 46 postoperative head & neck and urology cancer patients. The PSQI questionnaire was used to evaluate the subjective quality of sleep and the occurrence of sleep disorders. Six PSQI components were statistically significant and 78.3% of the interviewees had impaired subjective quality of sleep. Among factors leading to sleep disorders we point out: taking too long to fall asleep; waking up in the middle of the night; getting up to go to the bathroom and napping during the day. This study is expected to sensitize the nursing team regarding the need to investigate quality of sleep and causes of its disorders in cancer survivors for an effective course of action.El objetivo del estudio fue evaluar la calidad del sueño en pacientes quirúrgicos oncológicos, utilizando el cuestionario Índice de Calidad del Sueño de Pittsburgh (PSQI, para mensurar la calidad subjetiva del sueño y la ocurrencia de disturbios. Consistió en una investigación con delineamiento observacional transversal, envolviendo 46 pacientes con diagnóstico de cáncer, sometidos a procedimientos quirúrgicos de las especialidades Cabeza Cuello y Urología. Seis componentes del PSQI fueron estadísticamente significativos y 73,9% de los entrevistados presentaron comprometimiento de la calidad del sueño. Entre las causas de los disturbios del sueño se destaca: demorar para dormir, despertar en el medio de la noche, levantarse para ir al baño y dormitar durante el día. Se espera que este estudio sensibilice al equipo de enfermería sobre la necesidad de investigar la calidad y las causas de los disturbios del sueño en sobrevivientes de cáncer, para que haya una intervención efectiva.O objetivo do estudo foi avaliar a qualidade do sono em pacientes cirúrgicos oncol

  7. Achievement report on research and development in the Sunshine Project in fiscal 1977. Studies on hydrogen energy total systems and the safety assuring technologies thereon (Studies on preparing criteria for the safety assuring technologies for hydrogen energy total systems); 1977 nendo suiso energy total system to sono hoan gijutsu ni kansuru kenkyu seika hokokusho. Suiso energy total system no hoan gijutsu kijun no sakusei ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-03-01

    Studies have been made on preparing criteria for the safety assuring technologies for hydrogen energy total systems. The outline of the technological guideline for hydrogen manufacturing processes in the high temperature and pressure water decomposition method is the same as that in the normal pressure water decomposition method. However, its high temperature and pressure environment can cause new safety problems. Considerations should be given on, for example, material problems in structural materials and insulation materials including electrodes and membranes, introduction of gas-liquid separation and pressure balancing devices, problems in electrolyte circulation, and safety problems that may occur because of generation of hydrogen and oxygen under high temperature and pressure conditions. This paper summarizes these matters by surveying literature data. In order to provide basic information to prepare criteria for safety assuring technologies for the gaseous hydrogen liquefaction process, surveys and studies were made based on different items of technological information and experimental study results. Safety assuring technologies were discussed on metal hydrides (promising means for storing hydrogen). Powder is used to enhance hydrogen absorbing performance, whereas the metal hydrides are pulverized as a result of repetition of absorption and discharge of hydrogen. This paper describes also metal dust explosion disaster and its risk of occurrence. (NEDO)

  8. Percepção de sono: duração, qualidade e alerta em profissionais da área de enfermagem How nursing staff perceive the duration and quality of sleep and levels of alertness

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    Frida Marina Fischer

    2002-10-01

    Full Text Available Foi realizado um estudo entre auxiliares de enfermagem e enfermeiros que trabalhavam em hospital público de São Paulo. A organização dos turnos diurnos e noturnos fixos era de 12 horas diárias, seguidas de 36 horas de descanso. O objetivo deste estudo foi avaliar a percepção da duração e qualidade dos episódios de sono nos dias de trabalho e de descanso, bem como dos níveis de alerta durante os turnos diurnos e noturnos de 12 horas de trabalho. Comparadas as durações dos episódios de sono, foram detectadas diferenças significativas entre sono diurno e noturno (Teste t de Student = 10,82; p This study was conducted among health care personnel (registered nurses and nurse aides in a public hospital in São Paulo, Brazil. Work was organized in 12-hour daytime or nighttime shifts, followed by 36 hours off. The study aimed to evaluate how the nursing staff perceived the duration and quality of sleep both during and off work days, as well as their perception of alertness during working hours. There were significant differences between night and day in the duration of sleep (Student t test = 10.82; p < 0.000. Quality of daytime sleep after working night shifts was perceived as worse than nighttime sleep (Wilcoxon test, Z = 2.67; p < 0.007. Significant differences were detected in self-evaluation of alertness after the 2nd, 6th, and 10th hour of night shifts (Friedman = 63.0; p < 0.00. Alertness was perceived as worse during dawn hours. This is an indication of sleepiness at work and can have serious consequences for both health care workers and patients.

  9. Sono-synthesis and characterization of bimetallic Ni-Co/Al2O3-MgO nanocatalyst: Effects of metal content on catalytic properties and activity for hydrogen production via CO2 reforming of CH4.

    Science.gov (United States)

    Abdollahifar, Mozaffar; Haghighi, Mohammad; Babaluo, Ali Akbar; Talkhoncheh, Saeed Khajeh

    2016-07-01

    Sono-dispersion of Ni, Co and Ni-Co over Al2O3-MgO with Al/Mg ratio of 1.5 was prepared and tested for dry reforming of methane. The samples were characterized by XRD, FESEM, PSD, EDX, TEM, BET and FTIR analyses. In order to assess the effect of ultrasound irradiation, Ni-Co/Al2O3-MgO with Co content of 8% prepared via sonochemistry and impregnation methods. The sono-synthesized sample showed better textural properties and higher activity than that of impregnated one. Comparison of XRD patterns indicated that the NiO peaks became broader by increasing Co content over the support. The FESEM images displayed the particles are small and well-dispersed as a result of sonochemistry method. Also, EDX analysis demonstrated better dispersion of Ni and Co as a result of sonochemistry method in confirmation of XRD analysis. The sono-synthesized Ni-Co/Al2O3-MgO as a superior nanocatalyst with Co content of 3% illustrates much higher conversions (97.5% and 99% for CH4 and CO2 at 850 °C), yields (94% and 96% for H2 and CO at 850 °C) and 0.97 of H2/CO molar ratio in all samples using an equimolar feed ratio at 850 °C. During the 1200 min stability test, H2/CO molar ratio remained constant for the superior nanocatalyst. Copyright © 2016 Elsevier B.V. All rights reserved.

  10. Sono, qualidade de vida e depressão em mulheres no pós-tratamento de câncer de mama Sleep, quality of life and depression in women in breast cancer post-treatment

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    Renatha El Rafihi-Ferreira

    2012-01-01

    Full Text Available Este trabalho investigou a qualidade de sono de mulheres com câncer de mama e suas relações com qualidade de vida e depressão. Cinqüenta mulheres com câncer de mama (grupo clínico e cinqüenta controles responderam um questionário médico-demográfico e ao instrumento Pittsburgh Sleep Quality Index. O grupo clínico também respondeu aos instrumentos Quality of Life Cancer-Survivor e Brief Zung Self-Rating Depression Scale. Verificou-se que mulheres com câncer tinham significativamente mais queixas de nictúria, calor e despertares noturnos. O grupo clínico com má qualidade do sono apresentou comprometimento na qualidade de vida e mais sintomas de depressão. Em geral, a qualidade de sono em mulheres com câncer de mama pode predizer a qualidade de vida e o bem estar psicológico.This study investigated the sleep quality of women with breast cancer and their relationship with quality of life and depression. Fifty women with breast cancer (clinical group and a control group of other 50 women without the disease answered a clinical-demographic questionnaire and the Pittsburgh Sleep Quality Index. The clinical group also completed the Quality of Life Cancer-Survivor and the Brief Zung Self-Rating Depression Scale questionnaires. It was found that women with breast cancer had significantly more complaints of nocturia, heat and nighttime awakenings. The clinical group with poor quality of sleep reported impaired quality of life and more symptoms of depression. In general terms, sleep quality in women with breast cancer can predict their quality of life and psychological well-being.

  11. Dieta hipocalórica e treinamento físico em pacientes com síndrome metabólica e apnéia do sono

    OpenAIRE

    Cristiane Maki Nunes

    2011-01-01

    INTRODUÇÃO. Estudos anteriores demonstraram que pacientes com síndrome metabólica (SMet) e apnéia obstrutiva do sono (SAOS) apresentam hiperativação simpática e hipersensibilidade quimiorreflexa. Neste trabalho, testamos as hipóteses de que: 1) dieta hipocalórica associada à treinamento físico (D+TF) melhora a sensibilidade quimiorreflexa em pacientes com SMet e 2) Os efeitos da D+TF seriam mais pronunciados em pacientes com SMet+AOS que em pacientes sem AOS (SMet-AOS). MÉTODOS. Vinte e sete ...

  12. Qualidade do sono e depressão: que relações sintomáticas em crianças de idade escolar Sleep quality and depression: what symptomatic link in school-aged children

    Directory of Open Access Journals (Sweden)

    Filipa Serrão

    2007-12-01

    Full Text Available O sono e a depressão têm sido associados, tendo-se questionado se um padrão de sono deficitário era condição necessária e suficiente para o aparecimento de sintomatologia depressiva. Este estudo procura averiguar a prevalência dos problemas de sono e da depressão em crianças em idade escolar. Foram avaliadas em dois momentos 467 crianças da escola primária, com idades compreendidas entre os 6 e os 11 anos de idade (M=8,70; DP=0,692. Os resultados revelam uma diminuição na prevalência ao longo do ano lectivo nos dois quadros nosológicos, verificando-se também uma relação negativa entre o rendimento académico e a sintomatologia depressiva nos dois momentos de avaliação (T1 rho=-0,349; p=0,000; T2 rho=-0,406; p=0,000. Serão discutidas implicação dos resultados para a avaliação e intervenção das crianças, contemplando a possibilidade de uma intervenção precoce de modo a prevenir o aparecimento de um estado depressivo na infância que venha manter ou agravar os problemas do sono.Sleep and depression have been linked and questioned if a deficit sleep pattern were a sufficient condition for arising of depressive symptoms. This study tries to examine the prevalence of sleep problems and depression in school-aged children. Four-hundred and sixty-seven elementary school-children, aged 6 and 11 years (M= 8,70; DP=0,692 were evaluated in two moments. The results revealed that during the school-year both nosological entities reduced prevalence rates, and also a negative association between academic performance and depressive symptoms were found in both evaluation moments (T1 rho=-0,349; p=0,000; T2 rho=-0,406; p=0,000. The implications of such data for evaluation and intervention in children will be discussed, taking into account the possibility of a early interventions to prevent onset of depressive states in infancy which maintain and heighten sleep problems.

  13. Sleep disorders and starting time to school impair balance in 5-year-old children Distúrbios do sono, período escolar e equilíbrio em crianças com 5 anos de idade

    Directory of Open Access Journals (Sweden)

    Cristiane Aparecida Moran

    2005-09-01

    Full Text Available OBJECTIVE: To verify if sleep disorders and differents starting time to school have impaired motor skills in 5-year-old children. METHOD: Cross-sectional design consisting of 132 children with sleep disorders and 136 normal controls of the public school in the city of São Paulo. The group with sleep disorders was identified based on a questionnaire, and motor tests for global motor coordination, fine motor coordination, perceptual-motor coordination, and static and dynamic balance were applied in all children. RESULTS: In the static balance test, more specifically in the sharpened Romberg (Tandem test, 34% of boys from the study group, who studied in the morning, failed the test (p OBJETIVO: Verificar se distúrbios do sono e diferentes períodos escolares comprometem as habilidades motoras de crianças de 5 anos. MÉTODO: Realizou-se estudo transversal com 132 crianças com distúrbio do sono e 136 controles normais de escolas públicas da cidade de São Paulo. Foram utilizados questionários para distúrbios do sono e testes para coordenação motora global, motora fina, percepto-motora, equilíbrio estático e dinâmico. RESULTADOS: No teste de equilíbrio estático, mais especificamente na prova pé ante pé, 34% dos meninos do grupo estudo, que estudavam no período da manhã, falharam no teste (p < 0,05. Na prova de apoio monopodal, 62% dos meninos do grupo estudo, que estudavam no período da manhã, falharam no teste (p < 0,05. CONCLUSÃO: Este estudo sugere que os distúrbios do sono podem interagir com o período escolar e alterar a performance motora, principalmente de meninos que estudam no período da manhã.

  14. Estudo cárdio-respiratório do sono domiciliário em crianças. Será exequível?

    Directory of Open Access Journals (Sweden)

    Adelina Amorim

    2004-11-01

    Full Text Available RESUMO: A síndroma de apneia obstrutiva do sono é comum em crianças, podendo associar-se a graves complicações. A polissonografia nocturna mantém-se como gold standard no diagnóstico desta patologia. Dada a escassez de laboratórios do sono, nomeadamente com “perfil pediátrico”, têm-se vindo a usar outras técnicas de screening.O objectivo deste trabalho foi estudar a rentabilidade dos estudos cárdio-respiratórios do sono domiciliários realizados em crianças.Desde Janeiro de 1999 a Junho de 2003 foram realizados 33 estudos cardio-respiratórios do sono domiciliários em crianças.Foram estudadas 31, com uma média de idades de 10,6+/-3,4 anos, sendo 21 do sexo masculino. Em 5 doentes existiam malformações cránio-faciais, em 2 doenças neuromusculares e 10 crianças eram obesas. Os sinais de fluxo nasal e de saturação do oxigénio foram bons/razoáveis em 67,7% e 96,8% doentes, respectivamente. Apenas em 2 casos o registo foi nulo.O valor médio do índice de apneia-hipopneia foi de 10,7+/-12,3/hora, a saturação média de oxigénio de 95,6%+/-3,0 %, a saturação mínima de 82,2 %+/ /-9,2% e o índice de dessaturação de 12,5+/-10,7/ /hora. A síndroma de apneia obstrutiva do sono foi confirmada/sugestiva em 30 (91% doentes. O índice de apneia-hipopneia e o índice de dessaturação foi mais elevado no grupo de crianças commalformações cránio-faciais e doenças neuromusculares comparativamente com as crianças obesas (26,3 vs 10,5 e 21,5 vs 11,3, respectivamente mas sem significado estatístico.Na nossa experiência, o estudo cárdio-respiratório do sono domiciliário tem-se revelado um método de diagnóstico facilmente aplicável nas crianças. Ao fornecer mais informações objectivas do que outras técnicas de screening, poderá certamente avaliar com mais segurança a exist

  15. Investigação da ativação seletiva de neurônios dopaminérgicos da substância negra pars compacta promovida pela privação de sono REM em ratos

    OpenAIRE

    Proença, Mariana Bordinhão

    2013-01-01

    Resumo: Atualmente, vários estudos abordam a ligação entre o sono e a neurotransmissão dopaminérgica, focando nos mecanismos pelos quais a doença de Parkinson (DP) e o sono podem ser entrelaçados. Por conseguinte, as variações nas atividades durante os ciclos de sono, ou ao nível de corpos celulares dopaminérgicos na área tegmental ventral (VTA) e / ou na substância negra pars compacta (SNPC) podem afetar funções como a memória. Deste modo, foram realizadas quantificações neuroquímicas de DA,...

  16. Relação entre hipertensão arterial sistêmica e síndrome da apnéia obstrutiva do sono

    Directory of Open Access Journals (Sweden)

    Cavallari Fransérgio E.M.

    2002-01-01

    Full Text Available Introdução: hipertensão arterial sistêmica (HAS e a Síndrome da Apnéia Obstrutiva do Sono (SAOS são doenças prevalentes na população mundial e, embora despertem interesse na comunidade médica, não têm fisiopatologia e mecanismos pelo qual produzem suas complicações completamente elucidados. A SAOS está cada vez mais relacionada a patologias cardiovasculares, principalmente à hipertensão, que é prevalente em pacientes com SAOS. Objetivo: Em nosso estudo, objetivamos avaliar as alterações encontradas na presença de HAS em pacientes portadores de SAOS. Forma de estudo: Clínico prospectivo randomizado. Material e método: Estudamos uma população de pacientes do Ambulatório de Ronco e Apnéia do HC FMRP - USP, de fevereiro de 1999 a fevereiro de 2002, em um total de 42, sendo 30 (71,42% pacientes homens e 12 (28,58% mulheres, com idades de 21 a 77 anos (média de 45,3, dp = 9,372706, todos com diagnóstico de SAOS confirmado pela polissonografia, divididos em dois grupos de 21 pacientes com SAOS (controle e 21 com SAOS e HAS. Avaliamos as escalas de Epworth, Ronco e Sonolência nos dois grupos, além do uso da polissonografia para estudo objetivo. Resultado: Não encontramos diferença estatística entre os grupos na comparação dos resultados das escalas, mesmo tendo o grupo de hipertensos médias maiores. Ao avaliarmos objetivamente os pacientes com a polissonografia, levando em conta o IDR, há estatística significante (p=0,0326, com os hipertensos apresentando médias maiores. Vendo a proporção nos grupos, há predomínio de pacientes com apnéia moderada e grave entre os hipertensos, e leve entre os do controle. Conclusão: Concluindo, a concomitância entre HAS e SAOS representa fator agravante no grau da apnéia.

  17. O plantão noturno em anestesia reduz a latência ao sono El plantón nocturno en anestesia reduce la latencia al sueño Short sleep latency in residents after a period on duty in anesthesia

    OpenAIRE

    Lígia Andrade da Silva Telles Mathias; Christina Morotomi Funatsu Coelho; Elizabeth Pricoli Vilela; Joaquim Edson Vieira; Marcelo Lacava Pagnocca

    2004-01-01

    JUSTIFICATIVA E OBJETIVOS: Os médicos em geral, os anestesiologistas em particular, têm jornadas de trabalho prolongadas. Os residentes de Anestesiologia podem apresentar fadiga e estresse significativos. O objetivo deste trabalho foi verificar, em residentes de primeiro e segundo anos a latência do sono em períodos após plantão. MÉTODO: Foram avaliados 11 residentes em situações distintas: às 7 horas da manhã, após noite de sono normal (> 7h), sem plantão nos 3 dias anteriores (M1); às 7 hor...

  18. Sintomas da síndrome de apnéia-hipopnéia obstrutiva do sono em crianças Symptoms of obstructive sleep apnea-hypopnea syndrome in children

    Directory of Open Access Journals (Sweden)

    Paloma Baiardi Gregório

    2008-06-01

    Full Text Available OBJETIVOS: Investigar os sintomas mais freqüentes encontrados em crianças com diagnóstico polissonográfico de síndrome da apnéia-hipopnéia obstrutiva do sono (SAHOS. MÉTODOS: Foram avaliadas 38 crianças consecutivamente encaminhadas ao laboratório do sono com suspeita de SAHOS no período de junho de 2003 a dezembro de 2004. Os pacientes foram submetidos a um questionário pré-sono e a polissonografia. RESULTADOS: A idade média foi de 7,8 ± 4 anos (variação, 2-15 anos, sendo 50% das crianças do sexo masculino. Não apnéicos corresponderam a 7,9% dos pesquisados, distúrbio leve obstrutivo do sono ocorreu em 42,1%, moderado em 28,9% e severo em 22,1%. Observou-se maior freqüência de casos severos de apnéia entre crianças menores de seis anos (idade pré-escolar. Dentre as crianças com SAHOS, os sintomas mais citados foram ronco e obstrução nasal, presentes em 74,3 e 72,7% das crianças, respectivamente. Sonolência excessiva e bruxismo ocorreram em, respectivamente, 29,4 e 34,3% dos casos e doença do refluxo em apenas 3,1%. Agitação das pernas e dificuldade para iniciar o sono foram encontradas em, respectivamente, 65 e 33% dos avaliados. Todas as crianças que apresentaram SAHOS de grau severo tinham queixa de ronco e bruxismo. CONCLUSÕES: Nossos resultados mostraram que os sintomas mais freqüentes em crianças e adolescentes com SAHOS são ronco e obstrução nasal. Além disso, quadros mais graves da SAHOS estão associados à menor faixa etária.OBJECTIVE: To investigate the symptoms most frequently found in children with a polysomnographic diagnosis of obstructive sleep apnea-hypopnea syndrome (OSAHS. METHODS: We evaluated 38 children consecutively referred to the sleep laboratory with suspicion of OSAHS between June of 2003 and December of 2004. The patients were submitted to a pre-sleep questionnaire and to polysomnography. RESULTS: The mean age was 7.8 ± 4 years (range, 2-15 years, and 50% of the children

  19. Efeito da acupuntura na melhora da dor, sono e qualidade de vida em pacientes fibromiálgicos: estudo preliminar Effect of acupuncture on pain, sleep and quality of life improvement in fibromyalgia patients: preliminary study

    Directory of Open Access Journals (Sweden)

    Raymond S. Takiguchi

    2008-09-01

    Full Text Available A fibromialgia é uma síndrome definida por dor crônica generalizada e em pelo menos 11 dos 18 tender points, pontos dolorosos específicos. Este ensaio clínico randômico visou verificar a eficácia da acupuntura na melhora da dor, sono e qualidade de vida de pacientes fibromiálgicas. Dentre 20 mulheres com média de idade 44 anos, com diagnóstico de fibromialgia segundo critérios do Colégio Americano de Reumatologia, finalizaram o estudo 12, distribuídas aleatoriamente em dois grupos: A (GA, n=5, que recebeu acupuntura segundo a medicina tradicional chinesa; e B (GB, n=7, que teve a inserção de agulhas nos tender points base do occipital, trapézio, supraespinhoso e epicôndilo lateral. A dor foi avaliada por escala visual analógica e dolorimetria; o sono, pelo Inventário do Sono; e a qualidade de vida, pelo Questionário de Impacto da Fibromialgia (QIF. Os grupos receberam acupuntura uma vez por semana, durante oito semanas, com inserção de oito agulhas por 25 minutos. Os dados foram tratados estatisticamente, adotando-se o nível de significância ±=0,05. No GA, houve melhora estatisticamente significante do sono; e no GB, na dor, limiar de dor nos tender points, no sono e nos itens do QIF dor, cansaço matinal, ansiedade e depressão (pFibromyalgia is a syndrome defined by chronic widespread pain and sensitivity to pressure at at least 11 of 18 tender points. The aim of this random blind clinical trial was to assess the effectiveness of acupuncture on pain relief, on quality of sleep and life in fibromyalgia patients. From 20 female fibromyalgic patients (diagnosed according to the American College of Rheumatology, mean aged 44 years, 12 completed the study, randomly assigned into two groups: group A (GA, n=5 received acupuncture according to the traditional Chinese medicine; and group B (GB, n=7 received acupuncture at eight tender points: at the occiput, trapezius muscle, supraspinatus muscle, and lateral epicondyle. Pain

  20. Avaliação de um modelo de predição para apneia do sono em pacientes submetidos a polissonografia Evaluation of a prediction model for sleep apnea in patients submitted to polysomnography

    Directory of Open Access Journals (Sweden)

    Silvio Musman

    2011-02-01

    Full Text Available OBJETIVO: Testar um modelo de predição para apneia do sono a partir de variáveis sociodemográficas e clínicas em uma população com suspeita de distúrbio do sono e submetida à polissonografia. MÉTODOS: Foram incluídos no estudo 323 pacientes consecutivos submetidos à polissonografia por suspeita clínica de distúrbio do sono. Utilizou-se um questionário com questões sociodemográficas e a escala de sonolência de Epworth. Foram medidos pressão arterial, peso, altura e SpO2. A regressão linear múltipla, tendo o índice de apneia-hipopneia (IAH como variável dependente, foi utilizada para construir um modelo de predição de apneia do sono. A regressão logística multinomial foi realizada para verificar fatores associados de forma independente à gravidade da apneia (leve, moderada ou grave em comparação à ausência de apneia. RESULTADOS: A prevalência de apneia do sono na população de estudo foi de 71,2%, e foi mais prevalente nos homens que nas mulheres (81,2% vs. 56,8%; p OBJECTIVE: To test a prediction model for sleep apnea based on clinical and sociodemographic variables in a population suspected of having sleep disorders and submitted to polysomnography. METHODS: We included 323 consecutive patients submitted to polysomnography because of the clinical suspicion of having sleep disorders. We used a questionnaire with sociodemographic questions and the Epworth sleepiness scale. Blood pressure, weight, height, and SpO2 were measured. Multiple linear regression was used in order to create a prediction model for sleep apnea, the apnea-hypopnea index (AHI being the dependent variable. Multinomial logistic regression was used in order to identify factors independently associated with the severity of apnea (mild, moderate, or severe in comparison with the absence of apnea. RESULTS: The prevalence of sleep apnea in the study population was 71.2%. Sleep apnea was more prevalent in men than in women (81.2% vs. 56.8%; p < 0

  1. Fiscal 1999 achievement report on the venture business assisting type regional consortium - Minor business creation base type. Development of environmentally friendly chromium-free plating technology and research on its practical application; 1999 nendo chiiki consortium kenkyu kaihatsu jigyo seika hokokusho. Kankyo ni yasashii kuromu daitai mekki gijutsu kaihatsu to sono jitsuyoka kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    In this research, the seeds provided by Technology Research Institute of Osaka Prefecture and Nomura Plating Co., Ltd., relative to their plating processes using ion exchange membranes and metal anodes are utilized. Efforts are made to prolong the bathing life of the Ni-W alloy plating solution, to put the plating bath in an enclosure, to develop a chromium-free plating technology wherewith bating life is longer, environmental impact is smaller, and resistance to corrosion is higher, and experiments and tests are conducted for industrialization and for the practical application of the developed technologies. At Technology Research Institute of Osaka Prefecture, electrolytic Ni-W alloy plating was taken up. An insoluble anode separated from the plating solution by a cation exchange membrane and plural metal anodes were brought into a new process and, into the same, novel technologies were further introduced, which were a metal ion supply method in which the distribution of current to 3 anodes was regulated and the employment of a sacrificial anode decomposition agent. The new process was investigated for its validity and difficulties. Furthermore, Ni-W-P alloy plating was studied and a mirror-like Ni-W-P alloy plate was developed in a phosphorous acid added bath without detriment to the non-waste solution plating process, and the plate exhibited high corrosion resistance in a CASS (copper-accelerated acetic acid salt spray) test. (NEDO)

  2. FY 1991 report on the results of the development of the entrained bed coal gasification power plant. Part 1. Element study/investigational study of technology/study of the integrated coal gasification combined cycle power system; 1991 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Youso kenkyu hen, gijutsu chosa hen, sekitan gaska fukugo hatsuden system kento hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-01-01

    For the purpose of establishing the technology of integrated coal gasification combined cycle power generation, the following were conducted: element study of a 200t/d entrained bed coal gasification pilot plant, survey of technology of the coal gasification power generation, study of the practical scale IGCC, etc. The FY 1991 results were summarized. In the gasification test using 2t/d furnace equipment, evaluation test on the test coal for pilot plant was made. In the study of gas turbine combustor for demonstration machine use, measuring duct was fabricated for measurement of combustion gas temperature/pressure, etc. In the simulational study of the total system of combined cycle power generation, review/modification of part of the simulation model and detailing of the model were conducted by comparison with the data on pilot plant operation. In the technology study, joint technology conferences were held for discussions between Japan and Australia, Japan and the U.S., and Japan and Canada. As to the practical scale IGCC, the initially planned output capacity and thermal efficiency were studied based on the knowledge/information obtained through the R and D on the 200t/d pilot plant. (NEDO)

  3. Power load leveling and energy saving measures for office buildings. Power load leveling and energy saving technology for the new building of the Kobe branch of the Kansai Electric Power Co., and its effect; Office biru no denryoku fuka heijunka sho energy hosaku. Kobe shiten shinshaoku ni okeru denryoku fuka heijunka sho energy gijutsu to sono koka

    Energy Technology Data Exchange (ETDEWEB)

    Tsuchiyama, M. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1999-06-10

    This paper presents power load leveling and energy saving measures for heat source, air conditioning and lighting of the new Kobe branch building. The low-temperature hot-air system adopts an ice storage system, and reduces blowing power by 12 degreesC blowing in place of normal 16 degreesC blowing, and an initial cost by duct size reduction. The continuous air conditioning system levels an initial peak load of air conditioning as compared with normal air conditioning only for working hours for buildings with large heat capacity. In addition, as power load leveling measures for the whole building, the complete heat storage system using an underground internal melting type ice storage tank is adopted. Energy saving for lighting is achieved with a dimming lighting controlling its lighting output by inverter. The following effects are expected by these new technologies: Load leveling effect of 30%, energy saving effect of 20.2% and CO{sub 2} reduction effect of 24.1%. (NEDO)

  4. Fiscal 1998 achievement report on regional consortium research and development project. Venture business raising type regional consortium - small business creating base type (Research and development of new functional natural materials and development of technologies for their commercialization); 1998 nendo shinkino tennen zairyo no kenkyu kaihatsu oyobi sono kogyoka gijutsu no kaihatsu. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Efforts are made to manufacture a surgical membrane provided with a tissue regenerating capability and to bring the product into mass production and then commercialization. Subjected to examination is a composite of three materials, which are collagen from enzyme extracted pigskin which is a natural macromolecular material known to be safe, gelatine, and the polyglycollic acid which is a synthesized macromolecular substance to be disintegrated and absorbed in vivo. As for mass production technology, the product which used to be manufactured sheet by sheet in a laboratory is now produced lot by lot, each lot comprising 30-50 sheets. The sheet is now guaranteed to be excellent in quality, physical property, and safety. The product dimensions are now 10 times 10cm, large enough to ensure practicability and mass-production. It is found that the membrane is an integrated 3-layer structure, that its strength is more than what is stipulated concerning one-point support tension, rupture tension resistance, etc., and that it passes tests involving cytotoxicity, chromosome aberration, back mutation, cutaneous sensitization, fever causing substances, etc. A canine test reveals that the product works effectively as a material for regenerative medicine. (NEDO)

  5. FY 1992 report on the results of the development of an entrained bed coal gasification power plant. Part 1. Element study/Technical survey; 1992 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Youso kenkyu hen, gijutsu chosa hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-02-01

    For the purpose of establishing the technology of the integrated coal gasification combined cycle power generation, element study of a 200 t/d entrained bed coal gasification pilot plant was made, and the FY 1992 results were summarized. In the gasification test using a 2 t/d furnace equipment, study was made of the extraction of subjects on the operation, performance of gasification, slagging characteristics and characteristics of flux addition. In the study of slag utilization technology, chemical analysis, test on fine aggregate and test on fine particle were carried out to study applicability of the slag discharged from the entrained bed coal gasification power plant to various materials. In the study of a large gas turbine combustor for the demonstrative machine, the demonstrative machine use large gas turbine combustor testing equipment was installed at actual pressure/actual size combustion testing facilities in the pilot plant and further the test use combustor was integrated into them. By using them, the real gas combustion test was made using the adjusted coal for evaluation of combustion performance of the test use combustor. In the simulation study of the total pilot plant system, the comparative study was made between the data on the test using the actual machine and the results of the simulation. (NEDO)

  6. Achievement report on research and development in the Sunshine Project in fiscal 1977. Studies on hydrogen energy total systems and the safety assuring technologies thereon (Studies on hydrogen energy total systems); 1977 nendo suiso energy total system to sono hoan gijutsu ni kansuru kenkyu seika hokokusho. Suiso energy total system no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-03-01

    A numerical model was prepared to express fields and size of hydrogen energy introduction in Japan's energy systems in the future. Dividing Japan into 13 weather sections, one to two energy bases (import and secondary production bases in coastal areas) were assumed on each section. Secondary energies produced in these energy bases are transported to intermediate bases, from which the energies are distributed into cities and consumed. For the purpose of simplification, final consumption departments are hypothesized to exist in these intermediate bases. Parameters that characterize the flows on networks in the processes of supply, distribution, production, storage, transportation and utilization are divided largely into energy efficiency and cost of the processes. The amount of energy demand in each final consumption department was defined as an amount to maximize the expected effects as a result of having satisfied the demand. The result of trial calculations revealed that, as long as the hydrogen to be introduced is limited to hydrogen produced via electrolysis using thermally generated power, the hydrogen introduction into the future energy systems is difficult in terms of economic performance. (NEDO)

  7. Fiscal 2001 achievement report. Development of coal gas production technology for fuel cells - Research using pilot test facility - for public release (Part 1 - Construction and test operation); 2001 nendo seika hokokusho (Kokai you). Nenryo denchi you sekitan gas seizo gijutsu kaihatsu - Pilot shiken setsubi ni yoru kenkyu (Sono 1 - Koji shiken unten hen)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-03-01

    For the development of a coal gasification furnace optimum for fuel cells, research and development was conducted of a coal gas production technology using the oxygen-blown coal gasification technology, and the fiscal 2001 results are put together. In the construction of the pilot test facility, work involved the road in the site, road illumination system installation in the site, and an unauthorized entry prevention system. In the construction of the coal gasification facility, work involved electrical instrumentation and painting for the coal feeding system, coal gasification furnace, heat recovery boiler, and so forth, and the installation of a series of devices was completed. In July following the completion, power was received and test operations were started, which included the operation of the coal gasification facility alone. Renting was started in August for the coal pretreatment facility, air separation facility, and the slag treatment device. In the study of the operation control technology for the oxygen-blown coal gasification furnace system, test operations were conducted based on the operating procedures prepared in the preceding fiscal year, which included a test operation performed for the pilot test facility alone. Parameters for equipment control obtained through the test operations, and improvements on operating steps carried out as required, were all reflected on the operating procedures. (NEDO)

  8. Computerized analysis of snoring in sleep apnea syndrome Análise computadorizada do ronco na síndrome da apneia do sono

    Directory of Open Access Journals (Sweden)

    Fabio Koiti Shiomi

    2011-08-01

    Full Text Available The International Classification of Sleep Disorders lists 90 disorders. Manifestations, such as snoring, are important signs in the diagnosis of the Obstructive Sleep Apnea Syndrome; they are also socially undesirable. OBJECTIVE: The aim of this paper was to present and evaluate a computerized tool that automatically identifies snoring and highlights the importance of establishing the duration of each snoring event in OSA patients. MATERIAL AND METHODS: The low-sampling (200 Hz electrical signal that indicates snoring was measured during polysomnography. The snoring sound of 31 patients was automatically classified by the software. The Kappa approach was applied to measure agreement between the automatic detection software and a trained observer. Student's T test was applied to evaluate differences in the duration of snoring episodes among simple snorers and OSA snorers. RESULTS: Of a total 43,976 snoring episodes, the software sensitivity was 99. 26%, the specificity was 97. 35%, and Kappa was 0. 96. We found a statistically significant difference (p A classificação internacional de distúrbios do sono enumera aproximadamente 90 distúrbios. Manifestações, como o ronco, são um sinal no diagnóstico da Síndrome da Apneia Obstrutiva, além de ser um incômodo social. OBJETIVO: O objetivo deste artigo é apresentar e avaliar a ferramenta computacional que identifica o ronco automaticamente e destacar a importância da quantificação da duração de cada evento do ronco em pacientes com SAHOS. MATERIAL E MÉTODOS: O sinal elétrico que representa o ronco de baixa amostragem (200 hz foi captado enquanto os pacientes eram submetidos à polissonografia. O sinal do ronco dos 31 pacientes foi classificado pelo programa computacional automaticamente. Utilizamos o valor de Kappa para avaliar a concordância entre o programa de detecção automática e o observador treinado (teste t-student. Avaliamos a diferença da duração dos episódios de

  9. Síndrome da apneia obstrutiva do sono e o potencial auditivo P300 Obstructive sleep apnea and P300 evoked auditory potential

    Directory of Open Access Journals (Sweden)

    Carlos Henrique Martins

    2011-12-01

    Full Text Available A Síndrome da Apneia Obstrutiva do Sono (SAOS diminui as capacidades da atenção, memória e concentração, fatores relacionados com a cognição. A análise dos parâmetros do P300 auditivo permitiria inferir disfunção cognitiva. OBJETIVO: Comparar os dados da polissonografia e do P300 auditivo em adultos, roncopatas primários com portadores de SAOS. CASUÍSTICA E MÉTODO: Estudo prospectivo em roncopatas primários (N=12 e em portadores de SAOS (N=54, submetidos à polissonografia definidos pelo índice de apneia e hipopneia (IAH. As variáveis da polissonografia e as do P300 foram comparadas, pelos testes "T" de Student, exato de Fisher, regressão logística e análise de correlação com nível de significância de 5%. RESULTADOS: O IAH apresentou correlação inversa com a oximetria em ambos os grupos. A prevalência do P300 foi menor no G.SAOS (teste exato de Fisher, p=0,027. A idade dos pacientes não influenciou a prevalência do P300 (análise de regressão; p=0,232. A amplitude do P300 foi menor do G.SAOS (teste "T" de Student; p=0,003 a latência do P300 foi semelhante em ambos os grupos (teste "T" de Student; p=0,89. CONCLUSÃO: A redução da amplitude do P300 nos portadores de SAOS sugere disfunção cognitiva induzida por diminuição da memória auditiva.The obstructive sleep apnea syndrome (OSAS reduces attention span, memory and concentration capacities, all associated with cognition. The analysis of the auditory P300 parameters could help infer cognitive dysfunction. OBJECTIVE: To compare the data from polysomnography and the auditory P300 in adults, primary snorers with OSAS patients. MATERIALS AND METHODS: Prospective study with primary snorers (N=12 and in OSAS patients (N=54, submitted to polysomnography, defined by the apnea-hypopnea index (AHI. The polysomnography and P300 variables were compared by the t-Student test, the Exact Fisher's Test, logistic regression and analysis of correlation with a significance

  10. Moduladores dos hábitos de sono na infância Moduladores de los hábitos del sueño en la infancia Modulators of sleeping habits in childhood

    Directory of Open Access Journals (Sweden)

    Lorena Teresinha Consalter Geib

    2007-10-01

    Full Text Available Trata-se de um artigo de revisão bibliográfica realizado com o objetivo de apresentar os principais fatores orgânicos, psicológicos e culturais que influenciam os hábitos de sono do lactente. Com uma abordagem clínico-antropológica, descreve as inter-relações desses hábitos com os estressores biocomportamentais e psicossociais, além das práticas culturais como co-leito, alimentação noturna, objetos transicionais e uso de chupetas. Aponta para algumas condutas que podem modular a fisiologia do sono e as práticas domiciliares de sono na infância.Tratase de un artículo de revisión relizado con el objetivo de presentar los principales factores orgánicos, psicológicos y culturales que influencian en los hábitos del sueño del lactante. Con un abordaje clínico-antropológico, describe las interrelaciones de esos hábitos con los éstressores biocomportamentales y psicosociales, más allá de las prácticas culturales como el co-lecho, alimentación nocturna, objetos transicionales y el uso de chupetes. Apunta para algunas conductas que pueden modular la fisiología del sueño y las prácticas domiciliares del sueño en la infancia.This literature review presents the main organic, psychological and cultural factors influencing the sleeping habits of infants. By means of a clinical-anthropological approach, the interrelation between these habits and biobehavioral and psychosocial stressing factors is described, as well as cultural practices such as shared bed, night feeding, transitional objects and use of dummies. It presents some measures that may modulate the physiology of sleep and home practices of sleeping in childhood.

  11. Atualização em síndrome da apnéia obstrutiva do sono na infância Update in obstructive sleep apnea syndrome in children

    Directory of Open Access Journals (Sweden)

    Aracy P. S. Balbani

    2005-02-01

    Full Text Available A prevalência de SAOS em crianças é de 0,7-3%, com pico de incidência nos pré-escolares. Fatores anatômicos (obstrução nasal severa, más-formações craniofaciais, hipertrofia do tecido linfático da faringe, anomalias laríngeas, etc. e funcionais (doenças neuromusculares predispõem à SAOS na infância. A principal causa da SAOS em crianças é a hipertrofia adenotonsilar. As manifestações clínicas mais comuns são: ronco noturno, pausas respiratórias, sono agitado e respiração bucal. A oximetria de pulso noturna, a gravação em áudio ou vídeo dos ruídos respiratórios noturnos e a polissonografia breve diurna são métodos úteis para triagem dos casos suspeitos de SAOS em crianças, e o padrão-ouro para diagnóstico é a polissonografia em laboratório de sono durante uma noite inteira. Ao contrário dos adultos com SAOS, as crianças costumam apresentar: menos despertares associados aos eventos de apnéia, maior número de apnéias/hipopnéias durante o sono REM e dessaturação mais acentuada da oxihemoglobina mesmo nas apnéias de curta duração. O tratamento da SAOS pode ser cirúrgico (adenotonsilectomia, correção de anomalias craniofaciais, traqueostomia ou clínico (higiene do sono, pressão positiva contínua nas vias aéreas - CPAP.The prevalence of OSAS in children is 0.7-3%, with peak incidence in pre-schoolers. It is characterised by partial or complete upper airway obstruction during sleep, causing intermittent hypoxia. Both anatomical (severe nasal obstruction, craniofacial anomalies, hypertrophy of the pharyngeal lymphoid tissue, laryngeal anomalies, etc. and functional factors (neuromuscular diseases predispose to OSAS during childhood. The main cause of OSAS in children in adenotonsillar hypertrophy. The most common clinical manifestations of OSAS are: nocturnal snoring, respiratory pauses, restless sleep and mouth breathing. Nocturnal pulse oximetry, nocturnal noise audio/videotape recording and nap

  12. Affective state dependence and relative trait stability of perfectionism in sleep disturbances Dependência do estado afetivo e estabilidade relativa do traço do perfeccionismo nas perturbações de sono

    Directory of Open Access Journals (Sweden)

    Berta R. Maia

    2011-09-01

    Full Text Available OBJECTIVE: To evaluate the degree of absolute change, relative stability and state dependence of trait perfectionism in sleep disturbances in a sample of university students. METHOD: Participants completed the Multidimensional Perfectionism Scale and two items concerning sleep difficulties. The mean age at T0 (baseline was 19.59 years (SD = 1.61, range = 17-25 and 62.5% of the sample were female. RESULTS: Absolute changes in self-oriented and socially-prescribed perfectionism were found. Relative stability was found for all perfectionism dimensions. Prior and concurrent sleep disturbances explained a significant amount of variance in perfectionism. Controlling for the effects of sleep measures, prior self-oriented perfectionism and other-oriented perfectionism were the only significant predictors of subsequent self-oriented perfectionism and other-oriented perfectionism, at T1 and T2. Difficulties falling asleep at T1 and socially-prescribed perfectionism at T0 were significant predictors of socially-prescribed perfectionism at T1. CONCLUSION: Despite significant changes in perfectionism mean scores over the follow-up, the correlation analyses demonstrated that participants remained quite stable in regard to their relative levels of perfectionism. As concurrent difficulties initiating sleep also predicted concurrent socially-prescribed perfectionism, this seems to be one dimension of perfectionism with trait-state characteristics.OBJETIVOS: Avaliar o grau de mudança absoluta, de estabilidade relativa e dependência do estado do perfeccionismo nas perturbações de sono numa amostra de estudantes universitários. MÉTODO: Os sujeitos completaram a Escala Multidimensional do Perfeccionismo e dois itens sobre dificuldades em dormir. Os dados foram recolhidos em três momentos de avaliação, separados por um intervalo de um ano acadêmico. A idade média dos sujeitos no T0 era de 19,59 anos (DP = 1,61, variação = 17-25; 62,5% eram mulheres

  13. Affective state dependence and relative trait stability of perfectionism in sleep disturbances Dependência do estado afetivo e estabilidade relativa do traço do perfeccionismo nas perturbações de sono

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    Berta R. Maia

    2011-01-01

    Full Text Available OBJECTIVE: To evaluate the degree of absolute change, relative stability and state dependence of trait perfectionism in sleep disturbances in a sample of university students. METHOD: Participants completed the Multidimensional Perfectionism Scale and two items concerning sleep difficulties. The mean age at T0 (baseline was 19.59 years (SD = 1.61, range = 17-25 and 62.5% of the sample were female. RESULTS: Absolute changes in self-oriented and socially-prescribed perfectionism were found. Relative stability was found for all perfectionism dimensions. Prior and concurrent sleep disturbances explained a significant amount of variance in perfectionism. Controlling for the effects of sleep measures, prior selforiented perfectionism and other-oriented perfectionism were the only significant predictors of subsequent self-oriented perfectionism and otheroriented perfectionism, at T1 and T2. Difficulties falling asleep at T1 and socially-prescribed perfectionism at T0 were significant predictors of socially-prescribed perfectionism at T1. CONCLUSION: Despite significant changes in perfectionism mean scores over the follow-up, the correlation analyses demonstrated that participants remained quite stable in regard to their relative levels of perfectionism. As concurrent difficulties initiating sleep also predicted concurrent socially-prescribed perfectionism, this seems to be one dimension of perfectionism with trait-state characteristics.OBJETIVOS: Avaliar o grau de mudança absoluta, de estabilidade relativa e dependência do estado do perfeccionismo nas perturbações de sono numa amostra de estudantes universitários. MÉTODO: Os sujeitos completaram a Escala Multidimensional do Perfeccionismo e dois itens sobre dificuldades em dormir. Os dados foram recolhidos em três momentos de avaliação, separados por um intervalo de um ano acadêmico. A idade média dos sujeitos noT0 era de 19,59 anos (DP = 1,61, variação = 17-25; 62,5% eram mulheres

  14. Fatores que interferem na qualidade do sono de pacientes internados Factores que interfieren en la calidad del sueño de pacientes internados Factors that affect inpatients' quality of sleep

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    Shíntia Viana da Costa

    2013-02-01

    Full Text Available Este estudo objetivou identificar fatores que interferem na qualidade do sono de pacientes internados em hospital universitário do interior de São Paulo. Trata-se de estudo exploratório, de corte transversal, com amostragem não probabilística. Participaram 117 pacientes (59% homens, idade média de 48 anos, desvio padrão 16,9 internados há pelo menos 72 horas, em condições clínicas estáveis. Os instrumentos utilizados foram: questionário de identificação e Fatores Intervenientes na Qualidade do Sono (FIQS. O tratamento dos dados foi feito com estatística descritiva e cada item do FIQS foi submetido a teste e reteste. Os fatores apontados com maior frequência foram: acordar cedo (55,6%, sono interrompido (52,1%, iluminação excessiva (34,2%, recebimento de cuidados pela equipe de enfermagem (33,3% e distúrbios orgânicos como dor e fadiga (26,5%. Sugere-se que os enfermeiros planejem intervenções buscando modificar fatores que propiciam ruídos e iluminação intensos à noite, visando reduzir interrupções e, consequentemente, a privação de sono.Se objetivó identificar factores que interfieren en la calidad del sueño de pacientes internados en un hospital universitario del interior de São Paulo. Estudio exploratorio, transversal, con muestra no probabilística. Participaron 117 pacientes (59% masculinos, media etaria 48,0 años, desvío estándar 16,9 internados al menos hace 72 horas, en condiciones clínicas estables. Se utilizaron los instrumentos: cuestionario de identificación y Factores Intervinientes en la Calidad del Sueño (FIQS. Los datos se analizaron según la estadística descriptiva, cada ítem del FIQS fue sometido a prueba y contraprueba. Los factores señalados como más frecuentes fueron: despertar temprano (55,6%, sueño interrumpido (52,1%, iluminación excesiva (32,4%, recepción de cuidados de enfermería (33,3% y disturbios orgánicos, como dolor y fatiga (26,5%. Se sugiere que los enfermeros

  15. Influência da qualidade do sono na saúde, no comportamento e na aprendizagem escolar de alunos de 2º e 3º ciclos do ensino básico

    OpenAIRE

    Oliveira, Olinda

    2012-01-01

    Dissertação de mestrado em Estudos da Criança (área de especialização em Promoção da Saúde e do Meio Ambiente) O sono é uma função biológica vital que desempenha um papel fundamental na vida humana e pode ser definido como um estado de inconsciência do qual podemos ser despertados, por exemplo, por estímulos sensoriais (Guyton & Hall, 2002). Não é por acaso que passamos dois terços da nossa vida em vigília e um terço a dormir (Deitos, 2004). Porém, uma quantidade suficiente de so...

  16. Distúrbios do sono, sintomas de ansiedade e de depressão e qualidade de vida em trabalhadores rurais em período de entressafra cafeeira

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    Joseane Mendonça Monteiro de Lima

    2010-01-01

    INTRODUÇÃO: O desemprego e o trabalho precário podem alterar o sono e comprometer a qualidade de vida e a saúde mental do trabalhador. O trabalho por safra na colheita de café expõe o trabalhador às condições climáticas, ao excesso de atividade física, ao ganho por produtividade e à falta de garantia de estabilidade do trabalho. São elementos que podem acarretar doenças e aumentar a busca por atendimento médico e psicológico, sobrecarregando os serviços de saúde. OBJETIVOS: 1) avaliar o padrã...

  17. Empiema pleural por Eikenella corrodens e Porphyromonas asaccharolytica numa doente diabética sob ventilação não invasiva por síndrome de apneia obstrutiva do sono

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    J. Caiano Gil

    2013-03-01

    Full Text Available Resumo: A Eikenella corrodens é um microrganismo habitualmente encontrado na mucosa oral, trato gastrointestinal e trato geniturinário de humanos. Os casos de infeção pleuropulmonar por este agente são raros em indivíduos imunocompetentes, sendo a aspiração um fator importante na sua patogenia. Apesar de apresentar geralmente um prognóstico favorável, o reconhecimento desta infeção é essencial dado o perfil de sensibilidades característico. Os autores apresentam um caso de empiema pleural por E. corrodens, em coinfeção com Porphyromonas asaccharolytica, numa doente diabética imunocompetente com síndrome de apneia obstrutiva do sono, discutindo o papel da ventilação não invasiva como fator predisponente da referida infeção. Abstract: Eikenella corrodens is a normal inhabitant of the human oral cavity and gastrointestinal and genitourinary tracts. Pleuropulmonary infections by this microorganism are uncommon. Pulmonary aspiration is a chief predisposing condition. Although the outcome is usually favorable, its distinctive antibiotic sensitivity pattern makes bacterial identification an important feature in dealing with this infection. The authors report a case of pleural empyema caused by co-infection with Eikenella corrodens and Porphyromonas asaccharolytica, in an immunocompetent diabetic patient with obstructive sleep apnea syndrome, followed by a discussion on the role of noninvasive ventilation in the development of this infection. Palavras-chave: Empiema pleural, Ventilação não invasiva, Apneia obstrutiva do sono, Eikenella corrodens, Porphyromonas, Keywords: Pleural empyema, Continuous positive airway pressure, Obstructive sleep apnea, Eikenella corrodens, Porphyromonas

  18. Sleep, stress and compensatory behaviors in Australian nurses and midwives Sueño, estrés y comportamientos compensatorios por enfermeras y parteras australianas Sono, estresse e comportamentos compensatórios por enfermeiras e parteiras australianas

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    Jillian Dorrian

    2011-10-01

    ías, 1.002 turnos. RESULTADOS: Los participantes relataron de moderados a elevados niveles de estrés y de agotamiento en 20%-40% de los días de trabajo; experimentaron disturbios del sueño en más de 50% de los días de trabajo; relataron esfuerzo para permanecer despierto en 27% de los días de trabajo; y sofrieron somnolencia extrema o accidente cerca de casa en 9% de los días de trabajo. Edad, duración del sueño percibido y jornadas fueron predictores significativos de la ingestión de cafeína. Aproximadamente 60% de los participantes relataron utilizar la ayuda para dormir: cerca de 20% usaron de medicación prescripta y 44% de las enfermeras y 9% de las parteras consumirán alcohol como auxilio para dormir al menos una vez durante el estudio. Estrés y días de trabajo fueron predictores significativos del uso de sedativos. En general, 22% relataron ser indiferente, o ligeramente insatisfecho con su trabajo. CONCLUSIONES: Problemas en el sueño, estrés y agotamiento elevados y disminución en la satisfacción en el trabajo son prevalecientes. Uso de alcohol y de medicamentos para dormir, y consumo de cafeína para mantenerse alerta también es común. Enfermeras y parteras pueden usar la cafeína para compensar la reducción del sueño, especialmente en días de trabajo, y usar somníferos para compensar el estrés diario.OBJETIVO: Descrever sono, estresse e comportamentos compensatórios em enfermeiras e parteiras. MÉTODOS: O estudo incluiu 41 enfermeiras 21 parteiras em hospitais australianos de 2005 a 2009. A participação foi voluntária. Os participantes registraram diariamente as horas de trabalho, sono, stress e níveis de exaustão, cafeína e uso de ajuda para dormir durante um mês (1.736 dias, 1.002 turnos. RESULTADOS: Os participantes relataram de moderados a elevados níveis de stress e de exaustão em 20%-40% dos dias de trabalho; experimentaram distúrbios do sono em mais de 50% dos dias de trabalho; relataram esforço para permanecer

  19. Depressão pós-parto e alterações de sono aos 12 meses em bebês nascidos na zona urbana da cidade de Pelotas/RS Postpartum depression and sleep disorders in 12 month-old babies born in the urban area of Pelotas city

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    Eliane Rozales Lopes

    2010-01-01

    Full Text Available OBJETIVO: Verificar se existe associação entre as alterações no sono dos bebês aos 12 meses de vida e a depressão pós-parto materna. MÉTODOS: Estudo do tipo transversal aninhado a uma coorte. A amostra foi constituída por mulheres que realizaram o acompanhamento pelo Sistema Único de Saúde (SUS, nas unidades básicas de saúde do município de Pelotas, e que tiveram seus partos a partir de junho/2006. Os bebês de 12 meses oriundos dessa gestação também fazem parte da amostra. Para avaliar a presença de sintomas depressivos nas mães, foi utilizada a Edinburgh Postnatal Depression Scale (EPDS e foram investigados os seguintes comportamentos do sono dos bebês: horas de sono por dia, regularidade do horário para dormir e acordar, sono agitado e despertar noturno. Para análise, foi utilizada Regressão de Poisson. RESULTADOS: 35,7% dos bebês possuem alteração no padrão de sono. Após o ajuste ao modelo hierárquico proposto, a alteração no sono infantil manteve associação com a sintomatologia depressiva da mãe (p OBJECTIVE: Verify whether there is association between sleep disorders in babies at 12 months of age and postpartum depression in motherhood. METHODS:Cross sectional study. The sample was made up of women who had done their prenatal medical care at the National Health System (SUS, at the health basic units in Pelotas and who had their deliveries from June, 2006. The 12 month old babies from these women are also part of the sample. In order to assess depressive symptoms in the mothers, Edinburgh Postnatal Depression Scale was used and the following sleeping behaviors of the babies were investigated: hours of sleep per day, regularity of sleep and wake up time, disturbed sleep and night awakening. Poisson Regression was used for the analysis. RESULTS: 35.7% of the babies showed alterations in their sleeping patterns. After adjusting for the proposed hierarchal model, sleep alteration of the babies was still

  20. Compensatory rebound of body movements during sleep, after asphyxia in neonatal rats Resposta compensatória dos movimentos corporais do sono após a asfixia em ratos recém-nascidos

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    Olivia Adayr Xavier Suarez

    2008-06-01

    Full Text Available PURPOSE: The usefulness of body movements that occur during sleep when assessing perinatal asphyxia and predicting its long-term consequences is contradictory. This study investigated whether neonatal rats manifest these movements in compensatory rebound after asphyxia, and if these alterations play an important role in its pathogenesis. METHODS: Eight neonatal rats (aged 6-48h were implanted with small EMG and EKG electrodes and sleep movements were recorded over a 30-minute control period. Recordings were continued during asphyxia caused by the enclosure of the animal in a polyvinyl sheet for 60 minutes, followed by a 30-minute recovery period. RESULTS: Heart rate was lowered to bradycardic level during asphyxia causing behavioral agitation and increased waking time during the initial phase (30 minutes. Sleep-related movements were also significantly reduced from 12.5 ± 0.5 (median ± SE/2min to 9.0 ± 0.44 in the final half of the period (Anova, pOBJETIVO: A utilidade dos movimentos corporais (MC que ocorrem durante o sono para diagnosticar e predizer as conseqüências, em longo prazo, da asfixia perinatal é contraditório. Este estudo investigou se ratos recém-nascidos (RN manifestam MC em resposta compensatória à asfixia, e se estas alterações podem ter alguma importância na sua patogênese. MÉTODOS: Oito ratos RN (6-48h de vida foram submetidos à implantação de pequenos eletrodos para registros da eletromiografia e eletrocardiografia. Os MC e a freqüência cardíaca (FC foram registrados durante períodos de 30 min: fase controle (F1, fases de asfixia (F2; F3 e fase de recuperação pós-asfixia (F4. A asfixia foi promovida pelo envolvimento completo do animal com uma lâmina de polivinil. RESULTADOS: A FC diminuiu progressivamente durante F2 e F3 até a bradicardia. Em F2 houve grande agitação dos animais e aumento dos períodos de vigília. Em F3 houve redução significante dos MC de 12,5 ± 0,5 (Md ± SE/2min para 9,0

  1. Polymorphisms in the 5-HTR2A gene related to obstructive sleep apnea syndrome Polimorfismos no gene HTR2A relacionados à síndrome da apneia obstrutiva do sono

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    Vânia Belintani Piatto

    2011-06-01

    Full Text Available Obstructive sleep apnea syndrome (OSAS is one of the most complex disorders of sleep; it involves several genetic factors that contribute to the phenotype. Serotonin (5-HT regulates a variety of visceral and physiological functions, including sleep. Gene 5-HTR2A polymorphisms may change the transcription of several receptors in the serotoninergic system, thereby contributing to OSAS. AIM: To investigate the prevalence of T102C and -1438G/A polymorphisms in the 5-HTR2A gene of patients with and without OSAS . MATERIAL AND METHOD: A molecular study of 100 index-cases and 100 controls of both genders. DNA was extracted from blood leukocytes samples and the regions that enclose both polymorphisms were amplified with PCR-RFLP. STUDY DESIGN: A cross-sectional case study. RESULTS: There was a significant prevalence of males in index cases compared to controls (pA síndrome da apneia obstrutiva do sono (SAOS é um dos distúrbios mais complexos do sono, envolvendo múltiplos fatores genéticos contribuintes para o fenótipo. A serotonina (5-HT está envolvida na regulação de uma variedade de funções viscerais e fisiológicas, inclusive o sono. Polimorfismos no gene 5-HTR2A podem alterar a transcrição, afetando o número de receptores do sistema serotoninérgico, contribuindo para a SAOS. OBJETIVO: Investigar a prevalência dos polimorfismos T102C e -1438G/A no gene HTR2A em pacientes com e sem SAOS. MATERIAL E MÉTODO: Estudo molecular em 100 pacientes como casos-índice e em 100 como grupo controle, de ambos os gêneros. O DNA foi extraído de leucócitos de sangue periférico e realizada a amplificação das regiões que abrangem ambos os polimorfismos pelas técnicas da PCR-RFLP. DESENHO DO ESTUDO: Estudo de caso/controle em corte transversal. Resultados: Houve prevalência significativa do gênero masculino nos casos-índice em relação aos controles (p<0,0001. Para o polimorfismo T102C, não houve diferença genotípica significante entre

  2. Efeito da hidrocinesioterapia sobre qualidade de vida, capacidade funcional e qualidade do sono em pacientes com fibromialgia Effect of hydrotherapy on quality of life, functional capacity and sleep quality in patients with fibromyalgia

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    Kyara Morgana Oliveira Moura Silva

    2012-12-01

    Full Text Available INTRODUÇÃO: A síndrome da fibromialgia acomete 8% da população com mais de 40 anos de idade. Dos pacientes com fibromialgia, 75% queixam-se de má qualidade do sono. OBJETIVO: Avaliar os efeitos da hidrocinesioterapia sobre a capacidade funcional e a qualidade de sono em pacientes com fibromialgia. MÉTODOS: As pacientes foram atendidas na policlínica da UNASP. Foram avaliadas 60 pacientes portadoras de fibromialgia na faixa etária entre 30 e 65 anos. Das pacientes avaliadas, 20 foram excluídas e 10 desistiram devido à impossibilidade de apresentar-se no horário do programa de exercícios. Todas as pacientes responderam aos seguintes questionários: Questionário sobre o Impacto daFibromialgia (QIF, Índice da Qualidade do Sono de Pittsburgh e Escala de Sonolência de Epworth. As sessões foram realizadas duas vezes por semana, com duração de 60 minutos cada, por um período de dois meses. RESULTADOS: A média da idade das pacientes foi de 45 anos; 66% eram trabalhadoras ativas e 34% estavam afastadas do trabalho. Verificouse que imediatamente após participarem do programa da hidrocinesioterapia, as pacientes apresentaram melhora nos seguintes aspectos avaliados por meio do QIF: capacidade funcional, absenteísmo ao trabalho, capacidade de serviço, intensidade da dor, fadiga, cansaço matinal, rigidez (P INTRODUCTION: Fibromyalgia affects 8% of the population over the age of 40 years, and 75% of the patients with fibromyalgia have poor sleep quality. OBJECTIVE: To assess the effects of hydrotherapy on the physical function and sleep quality of patients with fibromyalgia. METHODS: Patients were under clinical care at the UNASP Outpatient Clinic. This study assessed 60 female patients with fibromyalgia aged between 30 and 65 years. Out of the 60 patients assessed, 20 were excluded and 10 left the study because they could not comply with the time schedule. All patients completed the following questionnaires: Fibromyalgia Impact

  3. Efeitos do treinamento em técnica respiratória do Yoga sobre a função pulmonar, a variabilidade da freqüência cardíaca, a qualidade de vida, a qualidade de sono e os sintomas de estresse em idosos saudáveis

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    Danilo Forghieri Santaella

    2011-01-01

    Introdução: O envelhecimento está associado com a diminuição de uma série de funções, incluindo a função pulmonar, a variabilidade da freqüência cardíaca, o barorreflexo espontâneo, a qualidade de vida e de sono, assim como com o aumento de níveis de estresse. Estudos recentes sugerem que os exercícios respiratórios do Yoga podem melhorar as funções respiratória e cardiovascular, além de aumentar a qualidade de vida e de sono e reduzir os sintomas de estresse em populações de pacientes com do...

  4. Os efeitos da idade no sono, estado de alerta e sonolência e fadiga crónica em agentes da polícia de segurança pública na região de Lisboa

    OpenAIRE

    Reis, Rui Miguel Gomes António

    2004-01-01

    Dissertação de Mestrado em Psicologia da Saúde A presente investigação pretende averiguar se a idade dos agentes da P.S.P. que trabalham por turnos têm repercussão na qualidade / quantidade do seu sono e do estado de alerta e sonolência Participaram no estudo 120 Agentes da Policia de Segurança Pública da região de Lisboa. Recorreu-se à utilização dos Questionários de Sono e Fadiga; de Dados Individuais; e a Escala de alerta e sonolência do Standard Shiftwork Index (SSI) - na versão por...

  5. Bite force and sleep quality in patients with bruxism before and after using a mandibular advancement device = Força de mordida e qualidade do sono em pacientes bruxômanos antes e após o uso de placa de avanço mandibular

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    Mainieri, Vivian Chiada

    2008-01-01

    Full Text Available Objetivo: Comparar a força de mordida e a qualidade do sono em pacientes com bruxismo antes e depois do uso de uma placa de avanço mandibular resiliente. Metodologia: Dezoito pacientes com bruxismo em atendimento na Clínica de Oclusão da Faculdade de Odontologia da PUCRS foram selecionados de acordo com os critérios de eligibilidade do estudo, examinados segundo o protocolo RDC/DTM e tratados com uma placa de avanço mandibular resiliente. Antes e após 30 dias de uso da placa de avanço mandibular os sujeitos foram submetidos a testes de força máxima de mordida com um transdutor de força compressiva de arco cruzado posicionado na região de primeiro molar; de qualidade do sono, de acordo com o questionário QAS da Universidade de Toronto; e de contagem do número de contrações do músculo masseter durante o sono usando-se o adesivo BiteStrip®. Os dados foram analisados por teste t de Student, teste de Wilcoxon e teste de McNemar ao nível de significância de 0,05. Resultados: Houve diminuição significativa (P < 0,05 dos parâmetros de bruxismo, de força de mordida e do escore total do QAS após o uso da placa de avanço mandibular por 30 dias. Conclusão: Os resultados sugerem que o uso da placa de avanço mandibular resiliente por um mês reduziu a força de mordida e o bruxismo e melhorou a qualidade do sono nesta amostra

  6. MAPA em portadores de DPOC com dessaturação no sono MAPA en portadores de EPOC con desaturación durante el sueño ABPM in COPD patients with sleep desaturation

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    Neila Anders Aidar

    2009-09-01

    Full Text Available FUNDAMENTO: A hipoxemia no período de sono pode, por mecanismo de ativação simpática, alterar a pressão arterial. Poucos estudos demonstram os parâmetros pressóricos em portadores de DPOC, que não têm apnéia do sono, mas que dessaturam nesse período. OBJETIVOS: Analisar os parâmetros pressóricos em pacientes com DPOC e dessaturação no sono, não causada por apnéia. MÉTODOS: Treze pacientes com DPOC foram submetidos à espirometria, gasometria arterial, polissonografia e MAPA para avaliação pressórica. Quatorze pacientes sem DPOC foram submetidos à espirometria, oximetria e MAPA. As análises pressóricas foram feitas tanto na vigília quanto no sono. Os dois grupos foram constituídos por pacientes sem antecedentes hipertensivos. RESULTADOS: Os dois grupos eram semelhantes em relação à idade, altura, peso e índice de massa corporal. Houve diferença significativa (p FUNDAMENTO: La hipoxemia en el período de sueño puede, por mecanismo de activación simpática, alterar la presión arterial. Pocos estudios demuestran los parámetros de presión en portadores de EPOC, que no tiene apnea del sueño, y que desaturan en ese período. OBJETIVO: Analizar los parámetros de presión en pacientes con EPOC y desaturación en el sueño, no causada por apnea. MÉTODOS: Trece pacientes con EPOC se sometieron a la espirometría, la gasometría arterial, la polisonografía y al MAPA para la evaluación de presión. Un total de 14 pacientes sin EPOC se sometieron a la espirometría, la oximetría y MAPA. Los análisis de presión se hicieron tanto en la vigilia como en el sueño. Los dos grupos estaban conformados por pacientes sin antecedentes hipertensivos. RESULTADOS: Los dos grupos se asemejaban respecto a la edad, la altura, el peso e el índice de masa corporal. Hubo diferencia significativa (p BACKGROUND: Sleep hypoxemia may change blood pressure by sympathetic activation. Few studies have analyzed blood pressure parameters in

  7. Disfunção erétil na síndrome de apneia obstrutiva do sono – Prevalência e determinantes

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    T. Santos

    2012-03-01

    Full Text Available Resumo: Introdução: A SAOS (síndroma de apneia obstrutiva do sono define-se pela ocorrência frequente de obstrução da via aérea superior durante o sono, com múltiplas consequências clínicas. Estudos anteriores sugerem que a SAOS provoca alterações na regulação neural, hormonal e vascular que contribuem para o desenvolvimento de DE (disfunção erétil.Este estudo tem como principais objetivos estimar a prevalência da DE numa amostra de doentes com SAOS e avaliar os seus determinantes. Métodos: Foram incluídos 62 doentes do Laboratório do Sono do Hospital S. João com diagnóstico recente de SAOS, que responderam ao questionário IIEF-5 (International Index Erectile Function-5 Item version. Resultados: A prevalência da DE em pacientes com SAOS foi de 64,4%. A idade e a diabetes constituíram fatores de risco independentes para graus avançados de DE: OR = 1,226 (IC 95%:1,062-1,415 e OR = 31,205 (IC 95%:1,222-796,557, respetivamente. Comparados com pacientes fumadores, o grupo de pacientes ex-fumadores revelou associar-se à DE: OR = 4,32 (IC 95%:1,09-17,11. A hipertensão e o tratamento com IECAS (inibidores da enzima conversora da angiotensina ou ARA (antagonistas dos recetores da angiotensina evidenciaram uma associação com DE: OR = 3,25 (IC 95%:1,09-9,65 e 7,39 (IC 95%:1,52-35,99, respetivamente.Não foi encontrada nenhuma relação no que diz respeito ao IMC (p = 0,254, hábitos alcoólicos (p = 0,357, enfarte agudo do miocárdio (p = 0,315, dislipidemia (p = 0,239 ou síndrome metabólico (p = 0,215 e DE. A gravidade da SAOS não se encontra associada a DE na amostra estudada. Conclusões: A prevalência da DE em doentes com SAOS é elevada. Os determinantes da DE na amostra estudada foram a idade e a diabetes. Ex-fumadores, hipertensão e tratamento com ACEI/ARB tamb

  8. Síndroma de apneia obstrutiva do sono como causa de acidentes de viação Obstructive sleep apnoea syndrome as a cause of road traffic accidents

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    M Aguiar

    2009-05-01

    Full Text Available Vários estudos demonstram que os doentes com síndroma de apneia obstrutiva do sono (SAOS têm um risco aumentado de acidentes de viação. O objectivo do presente trabalho consistiu em analisar, nestes doentes, se há diferenças nos que referem acidentes e/ /ou quase acidentes e aqueles que o não fazem. Material e métodos: Estudaram-se prospectivamente 163 doentes com SAOS (índice apneia/hipopneia (IAH>10/h diagnosticados por polissonografia nocturna (PSG, todos condutores de veículos, 18,4% do quais profissionais. Na altura da entrevista clínica foi inquirido se tinham tido, nos três anos antes acidentes e/ou quase acidentes devido a hipersonia diurna (Grupo II = 74 ou não (Grupo I = 89. Estes dois grupos foram comparados quanto a: idade, índice de massa corporal (IMC, escala de sonolência de Epworth (ESE, PaO2 e PaCO2 diurnas, avaliação da qualidade de vida pelo inquérito Functional Outcomes of Sleep Questionnaire (FOSQ teste e dados da polissonografia - tempo total de sono (TTS, eficiência do sono, estádios do sono, índice de microdespertares (IMD, índice de apneia/hipopneia (IAH, SaO2 mínima e média, % tempo SaO2Several studies have demonstrated that obstructive sleep apnoea syndrome (OSAS patients have a higher rate of road traffic accidents. Our study aimed to analyse any differences in OSAS patients between those who reported having had road traffic accidents and/or near misses and those who did not. Methods: We studied 163 patients with OSAS (apnoea-hypopnoea index (AHI>10/h diagnosed using nocturnal polysomnography (NPSG, all drivers, 18.4% of whom drove for a living. Patients were asked at their first clinical interview to self-report road traffic accidents and/or near misses over the past 3 years which had been caused by abnormal daytime drowsiness. This allowed patients to be divided into two groups, those who had had road traffic accidents and/or near misses and those who had not. Both were compared as to age

  9. Zakaj in kako biti družbeno odgovoren?

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    Milan Simončič

    2015-09-01

    Full Text Available Research Question (RQ: Modern society is critical more and more to social irresponsible actions. Organizations are aware of that fact, in the strategy of its operations want to include the implementation of socially responsibleprinciples. We are interested in how various authors perceive the concept of social responsibility of organizations, what they are benefits of socially responsible organization, how organizations implement its mission, including itsexternal stakeholders involvement and how that activities affects the diversity of cultural environments. Purpose: Study and summary a portion of the available references, in which the authors for different purposes research the social responsibility of organizations. We confronted and compareddifferent viewpoints. Method: We used the method of description (description of facts and method of compilation (summary of known results of scientific research. Results: The collected references are categorized by selected areas presented the classification of the authors, which address particular areas of social responsibility, the resources classified by years of posts and articles by scientific journals. Organization: Organizations will summarize the findings and use it as a starting point for further research, evaluation and eventual optimization of existing models of the concept of corporate social responsibility. Society: Findings will be used as a keystone for further research, society will be aware of the importance of implementing the principles of social responsibility, they will meet the challenges of coexistence with the social responsible organizations. Originality: Groups, which will use the results for further empirical research, are the wider society and organizations who want to improve their image and carry out socially responsible actions. Review of articles highlights various views, which in other articles did not found. Limitations/Future Research: Review of articles was limited to some journals and includes only some of the areas of importance for understanding the problems of deployment and implementation, and the motives for corporate social responsibility. Articles, order than 15 years,not included due to lack of interest in the present circumstances. In further research it would be welcome to increase the number of analyzed articles and take focus to some more specific areas (for instance: consider implementing social responsibility of specific organizations, such as nuclear power plants, chemical industry, evaluate possible further ethical dilemmas in health care, genetic research, cybernetics, etc.

  10. KAKO PREDŠKOLSKA DJECA VIDE "BIG BROTHER" SHOW?

    OpenAIRE

    Janković, Andrea; Sindik, Joško; Jaman, Kamea

    2007-01-01

    Cilj istraživanja bio je ispitivanje nekih karakteristika gledanosti Big Brother show-a kod djece predškolske dobi, razloga gledanja te emisije, s aspekta preferiranih sadržaja emisije te ličnosti (kandidata) koje preferiraju djeca. Ispitan je prigodni uzorak djece srednje i starije vrtićke dobi iz 3 dječja vrtića iz Zagreba (Dječjeg vrtića Grigora Viteza i Dječjeg vrtića "Maksimir" i "Trnoružica", N = 142). Utvrđene su čestine razloga preferencije pojedinih sudionika show–a te pojedinih s...

  11. KAKO IZBOLJŠATI ETIČNOST VODENJA MANAGERJEV

    OpenAIRE

    Frajzman, Sara

    2010-01-01

    Magistrsko delo obravnava problematiko etike in etičnosti vodenja managementa. Negativne posledice ekonomskega delovanja so pripeljale do spoznanja, da tudi poslovni svet potrebuje etiko. Seveda pojma nista v popolni harmoniji, nikakor pa se ne izključujeta. Predvsem za dolgoročni uspeh podjetja je upoštevanje etičnih načel nujno. Zavedati se je potrebno, da podjetje deluje in posluje v okolju in za svoja dejanja odgovarja drugim. Poslovna etika naj bi se torej ukvarjala z vprašanjem, kaj je ...

  12. Difuzijski modeli u marketingu: kako modelirati efekt egzogenih varijabli?

    OpenAIRE

    Radas, Sonja

    2006-01-01

    U marketingu se difuzijski modeli tradicionalno koriste za modeliranje dinamike životnog ciklusa proizvoda, za predviđanje potražnje za novim proizvodom te kao pomoć pri donošenju odluka u vezi s uvođenjem proizvoda na tržište. Od kada su se počeli koristiti u marketingu, difuzijski su modeli postali vrlo kompleksni. Ta je složenost posljedica potrebe da se poveća prognostička sposobnost modela i da se oni što više prilagode potrebama menadžera. Vezano s time, jedan od izazova u difuzijskom m...

  13. Međukulturalnost i kako nas vide drugi

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    Ana Ćavar

    2015-12-01

    Jednym z istotnych warunków osiągnięcia kompetencji międzykultu­rowych jest przezwyciężenie zbiorowych oraz indywidualnych stereotypów. Aby dowiedzieć się, czy istnieją stereotypowe obrazy/stereotypy o Chorwacji i Chorwatach wśród studentów zagranicznych, przeprowadziłyśmy ankietę wśród studentów slawistyki/kroatystyki na uczelnich zagranicznych. Celem badania było ułatwienie wprowadzenia podejścia międzykulturowego w naucza­niu języka chorwackiego na uniwersytetach.

  14. Qualidade de Sono e Parâmetros de Dessaturação Nocturna em Doentes com Doença Pulmonar Obstrutiva Crónica e Hipoxémia entre 55-70 mmHg

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    José Moutinho Dos Santos

    2001-03-01

    Full Text Available RESUMO: A dessaturação nocturna é um facto reconhecido em doentes com insuficiência respiratória crónica (IRC sendo sobretudo responsabilizada no seu mecanismo fisiopatológico a redução da ventilação alveolar particularmente durante o sono REM. Este fenómeno é importante em doentes com hipoxémia basal moderada (PaO2 basal entre 55-70 mmHg dada a posição particular da SaO2 na curva de dissociação de hemoglobina. Por outro lado, tem sido referido na literatura alterações da qualidade do sono em doentes com Doença Pulmonar Obstrutiva Crónica que afectam a normal estrutura do sono. O objectivo do trabalho foi avaliar de que modo a qualidade do sono poderia afectar os parâmetros de dessaturação nocturna e a sua definição como doente dessaturador.Vinte doentes (15 homens; 5 mulheres; idade X±dp - 68,2±6,1 anos com IRC estabilizada secundária a DPOC (FEV1 - 1,024±0,431 litros; 47±16,5 % do prognosticado foram submetidos a estudo poligráfico do sono em duas noites consecutivas em ar ambiente, sem medicação sedativa e sob medicação broncodilatora habitual. Na primeira noite de sono o padrão geral foi de insónia e sono fragmentado (aumento do tempo de latência ao sono e do número de “arousals” e diminuição da eficiência do sono com consequente redução do tempo em sono 3-4 e sono REM. Na segunda noite de estudo, verificou-se redução significativa do tempo de latência (72±65,5 vs. 28±31,4 minutos; p=0.008 e aumento da eficiência do sono (52±26,5 vs. 76±13.4%; p<0.0001 sem variação significativa do número de “arousals” e do tempo em sono profundo mas com aumento significativo do sono REM (6±4,8 vs. 11±6,5 %. Não se constataram diferenças significativas nos parâmetros de dessaturação nocturna nas duas noites embora se verifique grande variabilidade

  15. Hábitos de sono relacionados à síndrome da morte súbita do lactente: estudo populacional Sleeping habits related to sudden infant death syndrome: a population-based study

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    Lorena Teresinha Consalter Geib

    2006-02-01

    Full Text Available O estudo transversal, que descreve os hábitos de sono com risco potencial para a síndrome da morte súbita do lactente, incluiu todas as crianças nascidas vivas em 2003, em Passo Fundo, Rio Grande do Sul, Brasil, com coleta de dados nas Declarações de Nascidos Vivos e em entrevistas, analisados com estatística descritiva e teste de qui-quadrado. Dos 2.634 nascidos vivos, selecionaram-se 2.285 (86,75%, com exclusão de 8,4% e perda de 5,2%. Dentre os hábitos protetores, constatou-se, em 77% dos lactentes, uso de vestuário adequado, 90% envolvidos frouxamente, 69% com cobertas de espessura fina, 98% dormindo no quarto dos pais e 56%, no berço. Dos hábitos com potencial risco, observaram-se decúbito lateral (92%, uso de travesseiro (88% e os pés distanciados da borda inferior do berço (96%. Nas classes econômicas pobres, o hábito da criança de compartilhar a cama foi significativo (p = 0,00. Assim, num município com baixa prevalência de síndrome da morte súbita, os lactentes são expostos tanto a hábitos de sono protetores como de risco, sugerindo que, em populações desfavorecidas de países em desenvolvimento, outros fatores de risco dessa síndrome devam ser considerados.This cross-sectional study on sleeping habits with potential risk for sudden infant death syndrome included all live births in Passo Fundo, Rio Grande do Sul, Brazil, in 2003 with data collection from Certificates of Live Birth and interviews, analyzed with descriptive statistics and the qui-squared test. From the 2,634 live births, 2,285 children were selected (86.75%, with 8.4% exclusion and 5.2% losses. Protective habits included 77% of infants with appropriate clothing, 90% loosely wrapped, 69% with thin blankets, 98% sleeping in the parents' bedroom, and 56% in the crib. Potentially risky habits included lateral decubitus (92%, use of a pillow (88%, and feet far from the lower edge of the crib (96%. Among low-income families, bed-sharing with other

  16. Ocorrência da síndrome da apneia obstrutiva do sono (SAOS em crianças respiradoras orais Obstructive sleep apnea syndrome (OSAS in mouth breathing children

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    Suemy Cioffi Izu

    2010-10-01

    Full Text Available É bem estabelecido que a respiração oral em crianças está relacionada à hipertrofia adenoamigdaliana, que é a principal causa de apneia do sono nesta população. Apesar da importância deste tema, há poucos estudos que comprovam a relação entre SAOS e respiração oral. OBJETIVO: Determinar a prevalência de distúrbios respiratórios do sono em crianças respiradoras orais e sua correlação com achados otorrinolaringológicos. MATERIAL E MÉTODO: Foram avaliados retrospectivamente 248 prontuários de crianças respiradoras orais do serviço de Otorrinolaringologia Pediátrica de uma grande instituição entre 2000 e 2006, analisando os achados otorrinolaringológicos, polissonografia, nasofibroscopia e/ou radiografia em perfil do Cavum. O principal dado polissonográfico utilizado foi o índice de apneia (IA. Classificou-se como ronco primário aqueles com IA1. Desenho Científico: Coorte retrospectivo. RESULTADOS: Dos 248 pacientes incluídos, 144 (58% apresentavam ronco primário e 104 (42% apresentavam SAOS. Os achados otorrinolaringológicos mais frequentes foram Hipertrofia adenoamigdaliana (n=152; 61,2%, Hipertrofia de tonsila palatina (n=17; 6,8% Hipertrofia da tonsila faríngea (n=37; 14,9%, Rinite Alérgica (n=155; 62,5% e Otite Secretora (36; 14,5%. CONCLUSÕES: Ronco Primário e SAOS são frequentes em crianças respiradoras orais. A afecção otorrinolaringológica mais encontrada em crianças com SAOS é a hipertrofia adenoamigdaliana acompanhada ou não de rinite alérgica.It is well known that mouth breathing is associated with adenotonsillar hypertrophy - which is the main cause of obstructive sleep apnea among children. Despite the importance of this matter, there are only a handful of studies showing the relationship between OSAS and mouth breathing. AIM: to determine the prevalence of obstructive sleep disorders in mouth breathing children and study its correlation with otorhinolaryngological findings. STUDY

  17. Sleep and rest needs of seniors: a study grounded in the work of Henderson Necesidades relacionadas al sueño/reposo de ancianos: estudio fundamentado en Henderson Necessidades relacionadas ao sono/repouso de idosos: estudo fundamentado em Henderson

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    Jorge Wilker Bezerra Clares

    2012-01-01

    .OBJETIVO: Analisar as demandas de necessidades relacionadas ao sono/repouso de uma população idosa no âmbito da Estratégia Saúde da Família, fundamentada no referencial de Virgínia Henderson. MÉTODOS: Estudo de abordagem quantitativa, descritivo, realizado entre maio e junho de 2011, mediante aplicação de formulário a 52 idosos residentes na área coberta por uma unidade básica de saúde de Fortaleza-CE. Os dados foram analisados por meio de software estatístico. RESULTADOS: Os problemas de sono mais comum entre os idosos foram: dormir menos de 4 horas por noite (84,6%, sonolência diurna (71,2%, despertares noturnos (71,2%, uso de medicamentos para dormir (21,2%. A análise de associação mostrou-se significativa com as variáveis, idade (p=0,05, presença de morbidade (p=0,02, tabagismo (p=0,01 e dor ao mover-se (p=0,05. CONCLUSÃO: As demandas para a necessidade de dormir/repousar nos idosos estiveram associadas significativamente a fatores socioeconômicos e condições de saúde.

  18. Perfil cardiovascular em pacientes com apneia obstrutiva do sono Perfil cardiovascular en pacientes con apnea obstructiva del sueño Cardiovascular profile in patients with obstructive sleep apnea

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    Fátima Dumas Cintra

    2011-04-01

    Full Text Available FUNDAMENTO: Apneia Obstrutiva do Sono (AOS é um fator de risco para várias condições cardiovasculares incluindo aumento na mortalidade cardiovascular. Sendo assim, é essencial o conhecimento das principais repercussões cardiovasculares dos distúrbios respiratórios do sono durante uma avaliação clínica. OBJETIVO: Analisar as características cardiovasculares de pacientes com AOS. MÉTODOS: Pacientes submetidos a polissonografia basal foram consecutivamente selecionados do banco de dados do Instituto do Sono entre março de 2007 e março de 2009. Todos os pacientes foram orientados a comparecer ao ambulatório para coleta de sangue, exame físico, eletrocardiograma de 12 derivações, espirometria, teste cardiopulmonar em esteira ergométrica e ecocardiograma transtorácico. O estudo foi aprovado pelo comitê de ética e pesquisa e registrado no site http://clinicaltrials.gov/ sob o número: NCT00768625. RESULTADOS: Foram analisados 261 pacientes e 108 controles. As principais características dos pacientes com AOS foram: obesidade, hipertensão, baixos níveis plasmáticos de lipoproteínas de alta densidade (HDL e aumento no diâmetro do átrio esquerdo quando comparados com controles (3,75 ± 0,42; 3,61 ± 0,41, p = 0,001, respectivamente. Essas características associadas correspondem a um acréscimo de 16,6 vezes na probabilidade de ocorrência de AOS independentemente do relato de algum sintoma dessa desordem, como sonolência ou ronco. CONCLUSÃO: Na amostra avaliada, o perfil cardiovascular dos pacientes com AOS mais encontrado foi: obesidade, hipertensão arterial, baixos níveis plasmáticos de HDL e átrio esquerdo com diâmetro aumentado.FUNDAMENTO: Apnea obstructiva del sueño (AOS es un factor de riesgo para diversas condiciones cardiovasculares, incluido el aumento en la mortalidad cardiovascular. Por tanto, es imprescindible conocer las principales repercusiones cardiovasculares de los trastornos respiratorios del sue

  19. Influência da reabilitação pulmonar sobre o padrão de sono de pacientes portadores de doença pulmonar obstrutiva crônica Influence of pulmonary rehabilitation on the sleep patterns of patients with chronic obstructive pulmonary disease

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    Renata Claudia Zanchet

    2004-10-01

    Full Text Available INTRODUÇÃO: A Reabilitação Pulmonar (RP melhora a qualidade de vida de pacientes portadores de doença pulmonar obstrutiva crônica (DPOC. No entanto, o papel da RP sobre o padrão de sono destes pacientes ainda não está estabelecido. OBJETIVO: Avaliar a influência da RP sobre o padrão de sono de pacientes portadores de DPOC. MÉTODO: Foram estudados 27 pacientes (22 homens, que foram submetidos a exames espirométricos, gasométricos, antropométricos e polissonográficos antes e depois de seis semanas de RP, além de responderem a escala de sonolência de Epworth. A análise estatística foi realizada pelo teste t de Student para amostras pareadas, ANOVA e o teste de comparações múltiplas Newmans-Keuls. RESULTADOS: Observamos que os pacientes estudados tinham idade média de 63 ± 5 anos, VEF1 = 55 ± 25% do previsto, VEF1/CVF = 50 ± 12%, PaO2 em repouso de 70 ± 7mmHg e SaO2 igual a 94 ± 2%. A polissonografia revelou sono fragmentado, redução do sono delta e dessaturação da hemoglobina, cujas maiores quedas ocorreram durante o sono REM. Não houve diferença estatisticamente significativa (p>0,05 na comparação entre as variáveis estudadas antes e após RP. CONCLUSÃO: No grupo de pacientes estudados, o programa de RP não modificou o padrão de sono.BACKGROUND: Pulmonary Rehabilitation (PR improves the quality of life of chronic obstructive pulmonary disease (COPD patients. However, the influence of PR on the sleep pattern of these patients is unknown. OBJECTIVE: To evaluate the influence of PR on the sleep patterns of patients with COPD. METHOD: A total of 27 patients (22 men/5 women were submitted to polysomnographic, gasometric and anthropometric studies before and after six weeks of PR and were evaluated using the Epworth Sleepiness Scale. The results were analyzed using paired Student's t-test, ANOVA and Newman-Keuls multiple comparison test. RESULTS: Mean age was 63.3 ± 5.3 years, mean FEV1 was 54.8 ± 25.4% of

  20. Qualidade do sono de idosos residentes em instituição de longa permanência Calidad del sueño de ancianos residentes en instituciones de larga permanencia Sleep quality of elders living in long-term care institutions

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    Claudia Lysia de Oliveira Araújo

    2010-09-01

    Full Text Available Este estudo teve como objetivo avaliar a qualidade do sono de idosos residentes em quatro instituições de longa permanência para idosos (ILPI de uma cidade do interior do estado de São Paulo e identificar problemas relacionados ao sono. Participaram 38 idosos, cujas funções cognitivas estavam preservadas e que residiam nas ILPI há pelo menos um ano. Foram empregues os instrumentos Ficha de Identificação, Índice de Katz e Índice de Qualidade do Sono de Pittsburgh (PSQI, todos preenchidos pela pesquisadora. Os resultados mostraram que 81,6% dos idosos referiam qualidade do sono boa ou muito boa; entretanto, os seguintes problemas relacionados ao sono destacaram-se por sua elevada frequência: levantar-se para ir ao banheiro (63,2%; acordar no meio da noite ou muito cedo pela manhã (50%; sentir muito calor (23,7%; sentir dores (21,1%. Evidencia-se uma contradição entre a percepção da qualidade do sono e o elevado número de problemas identificados.Este estudio tuvo como objetivo evaluar la calidad del sueño de ancianos residentes en cuatro instituciones de larga permanencia para ancianos (ILPI, siglas en portugués de una ciudad del interior del estado de San Pablo, Brasil, e identificar problemas relacionados con el sueño. Participaron 38 anciano, cuyas funciones cognitivas estaban preservadas y que habían residido en las ILPI por lo menos por un año. Fueron empleados los instrumentos Ficha de Identificación, Índice de Katz e Índice de Calidad del Sueño de Pittsburgh (PSQI, todos completados por la investigadora. Los resultados demostraron que el 81,6% de los ancianos referían calidad de sueño buena o muy buena, mientras que os siguientes problemas relacionados al sueño se destacaron por su elevada frecuencia: levantarse para ir al baño (63,2%, despertar en medio de la noche o por la mañana demasiado temprano (50%, sentir mucho calor (23,7%, sentir dolores (21,1%. Se evidencia una contradicción entre la percepción de

  1. Qualidade do sono em pacientes idosos com patologias vasculares periféricas Calidad del sueño en pacientes de la tercera edad con patologías vasculares periféricas Sleep quality in aged patients with peripheral vascular diseases

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    Karina Corrêa

    2008-03-01

    Full Text Available Patologias vasculares periféricas freqüentemente acometem idosos e, sendo crônicas, interferem na qualidade de vida desses indivíduos, inclusive no sono. Portanto, este estudo objetivou avaliar a qualidade do sono de idosos com patologias vasculares periféricas em acompanhamento ambulatorial no Hospital das Clínicas da Universidade Estadual de Campinas. Os voluntários (n=50, idade média de 74 8 anos responderam ao Índice de Qualidade de Sono de Pittsburgh (PSQI, forneceram dados sociodemográficos e sobre a vasculopatia (35 idosos apresentavam obstrução arterial em membros inferiores. Verificou-se que 34 idosos apresentavam sono de má qualidade. A duração do sono era de 5,8 ( 2,3 horas e, segundo 23 idosos, as dores perturbavam o sono noturno freqüentemente (três vezes na semana ou mais. Somente 18 idosos usavam analgésicos e quatro, medicamentos para dormir. Os achados podem subsidiar o enfermeiro na implementação de medidas para melhorar esse quadro e promover a qualidade de vida das pessoas acometidas.Las patologías vasculares periféricas frecuentemente acometen a las personas de la tercera edad y, siendo crónicas, interfieren en la calidad de vida de esos individuos, inclusive en el sueño. Por tanto, en este estudio se tuvo por objetivo evaluar la calidad del sueño de personas de la tercera edad con patologías vasculares periféricas en tratamiento ambulatorio en el Hospital de las Clínicas de la Universidad Estatal de Campinas. Los voluntarios (n=50, edad media de 74 8 años respondieron al Índice de Calidad de Sueño de Pittsburgh (PSQI, proporcionaron sus datos sociodemográficos y sobre la vasculopatía (35 personas de la tercera edad presentaban obstrucción arterial en miembros inferiores. Se verificó que 34 personas de la tercera edad presentaban sueño de mala calidad. La duración del sueño era de 5,8 ( 2,3 horas y, según 23 de los participantes, los dolores perturbaban su sueño nocturno frecuentemente

  2. What do petrochemical workers, healthcare workers, and truck drivers have in common? Evaluation of sleep and alertness in Brazilian shiftworkers O que têm em comum os trabalhadores da indústria petroquímica, profissionais de saúde e caminhoneiros? Sono e vigília entre trabalhadores em turnos no Brasil

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    Frida Marina Fischer

    2004-12-01

    Full Text Available The article reports briefly on some effects of shiftwork and the work environment on health and wellbeing of shiftworkers. Studies of Brazilian shiftworkers (healthcare workers, petrochemical workers, and truck drivers are described. A similar methodology was used to evaluate sleep and alertness in all these studies. The evaluation of sleep duration and quality and alertness showed similar results in the three studies. Although the workers were in different work settings, performing different jobs, the results are similar: daytime sleep is reduced and perceived as having worse quality than nighttime sleep; alertness decreases as the night work progresses. The study highlights the importance of shiftwork schedules' features and work organization for workers' health, wellbeing, and safety.Este artigo apresenta de forma resumida os efeitos do trabalho em turnos na saúde e bem-estar dos trabalhadores. São apresentados estudos conduzidos em hospitais, indústria petroquímica e companhias de caminhões de carga. Foi utilizada metodologia semelhante nos estudos descritos para avaliação da duração e qualidade do sono, assim como do alerta durante o trabalho. Apesar dos trabalhadores realizarem tarefas bastante distintas, os resultados das avaliações de sono e alerta foram semelhantes: os trabalhadores após turnos noturnos apresentaram sono mais curto do que após outros turnos, comparados consigo mesmos e/ou com seus colegas de turnos diurnos. É enfatizada a importância da escala em turnos, assim como da organização do trabalho, para auxiliar os trabalhadores a manterem sua saúde, bem-estar e segurança no trabalho.

  3. Efeito do treinamento físico e da dieta hipocalórica na modulação autonômica simpática em pacientes com síndrome metabólica e apneia obstrutiva do sono

    OpenAIRE

    Edgar Toschi Dias

    2013-01-01

    INTRODUÇÃO: Pacientes com síndrome metabólica (SMet) apresentam aumento na atividade nervosa simpática muscular (ANSM) e diminuição no ganho do controle barorreflexo arterial (CBR). E, a apnéia obstrutiva do sono (AOS), uma comorbidade frequentemente encontrada em pacientes com SMet, exacerba essas disfunções autonômicas. Sabe-se que a incidência dos disparos e o padrão oscilatório da ANSM dependem do ganho (sensibilidade) e do tempo de retardo (latência) do CBR da ANSM (CBRANSM). Contudo, o ...

  4. Sonolência diurna excessiva pós-traumatismo de crânio: associação com movimentos periódicos de pernas e distúrbio de comportamento do sono REM: relato de caso Excessive daytime sleepiness after traumatic brain injury: association with periodic limb movements and REM behavior disorder: case report

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    Raimundo Nonato D. Rodrigues

    2002-09-01

    Full Text Available Um homem de 52 anos, procurou o Hospital. Universitário de Brasília com queixa de sono agitado. Sua esposa relatava, desde há cerca de 10 anos, intensa movimentação de membros e agressividade em meio a sonhos violentos. Desde então apresentava sonolência diurna excessiva. Havia relato de traumatismo de crânio há 34 anos e coma de 2 meses de duração. A vídeo-polissonografia revelou comportamento agressivo e agitado durante o sono REM, e movimentos periódicos de pernas. Havia importante sonolência diurna no teste de latências de sono. Foi instituído tratamento com levodopa-benzerazida 100/25 mg à noite. Após 10 semanas de evolução, houve melhora da movimentação noturna global, e desaparecimento dos episódios ligados a sonhos de conteúdo violento. Este caso nos permite analisar a associação entre trauma craniano e alterações nas vias dopaminérgicas (movimentos periódicos das pernas e distúrbio de comportamento do sono REM e revisar a importância dos distúrbios na produção de hipocretina hipotalâmica na fisiopatologia desse quadro clínico.A 52 year-old male patient, had complaint of "restless sleep". His wife informed that for the past ten years the patient had presented intense and aggressive body movements, and sometimes, violent dreams. The patient also complained of excessive daytime sleepiness. His relevant previous medical history included a traumatic brain injury at the age of 28 which left him in coma for two months. A video-polysomnography showed periodic leg movements and, during REM sleep, aggressive and agitated behaviour. The multiple sleep latency test revealed extremely short latencies. Initially, he was treated with levodopa-benzerazide, 100/25 mg, 2 hours before bedtime. After 10 weeks his overnight behaviour pattern improved and leg movements diminished. This case supports the hypothesis of an association between cranial trauma and alterations in the dopaminergic pathways represented by periodic

  5. Comparação entre o efeito do aumento da dimensão vertical de oclusão e do avanço mandibular na qualidade do sono em pacientes idosos portadores de próteses totais bimaxilares

    OpenAIRE

    Thiago Carôso Fróes

    2011-01-01

    A população idosa possui alta prevalência de edentulismo e, conseqüentemente, é afetada pelos problemas a ele associados. A perda da dimensão vertical de oclusão (DVO) é um destes problemas que compromete, entre outros fatores, o desempenho do sistema estomatognático. Logo, doenças relacionadas ao colapso da musculatura da via aérea superior (VAS), como a síndrome da apnéia obstrutiva do sono (SAOS), tornam-se enfermidades relevantes para pacientes nesta faixa etária. Sendo assim, medidas ter...

  6. Avaliação dos níveis séricos de testosterona em pacientes com síndrome da apneia obstrutiva do sono Evaluation of testosterone serum levels in patients with obstructive sleep apnea syndrome

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    Fernando Drimel Molina

    2011-02-01

    Full Text Available Homens com síndrome da apneia obstrutiva do sono (SAOS podem apresentar diminuição dos níveis de testosterona devido à hipóxia. OBJETIVOS: Relacionar os níveis séricos da testosterona, em pacientes com SAOS, com parâmetros clínico-laboratoriais. MATERIAL E MÉTODOS: Foram revisados 103 prontuários de pacientes com SAOS, entre os anos de 2002 e 2009, e coletados os seguintes dados: idade à época da realização da polissonografia, valores do Hematócrito e Hemoglobina, nível sérico da testosterona total, IMC, índice de apneia/hipopneia(IAH e SatO2. FORMA DO ESTUDO: Estudo de casos retrospectivo em corte transversal. RESULTADOS: 79 pacientes (77% não apresentaram alteração hormonal e 24 (23% apresentaram níveis séricos inferiores. Dos pacientes com testosterona normal 70% estavam com sobrepeso, enquanto que 63% com testosterona alterada apresentaram obesidade grau I (pMales with obstructive sleep apnea syndrome (OSAS may present decreased testosterone serum levels because of hypoxemia. AIM: To correlate testosterone levels in OSAS patients with laboratory parameters. MATERIAL AND METHODS: 103 registries of OSAS patients were reviewed from 2002 to 2009. The following data collected: age when polysomnography was done, hematocrit and hemoglobin levels, total testosterone serum levels, BMI, apnea/hypopnea index (AHI, and O2 saturation. STUDY DESIGN: A cross-sectional retrospective case study. RESULTS: 79 patients (77% had no hormonal changes, and 24 patients (23% had decreased serum levels. In patients with normal testosterone levels, 70% were overweight; 63% with altered testosterone levels had obesity grade I (p<0.05. Patients with altered testosterone levels had significantly lower average doses of Ht, Hb and androgen compared to patients without altered androgen levels. The average BMI of patients with altered hormone levels was significantly higher compared to patients with normal hormone levels. CONCLUSIONS: The relationship

  7. Prevalência de insónia de novo em doentes com síndrome de apneia obstrutiva do sono tratados com suporte ventilatório nocturno

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    P. Caetano Mota

    2012-01-01

    Full Text Available Resumo: Introdução: A insónia de novo (IN associada ao uso do suporte ventilatório nocturno (SVN tem sido uma realidade constatada na prática clínica, contudo é de salientar a escassez de dados referentes à sua prevalência. O nosso objectivo consistiu em determinar a prevalência de IN e seus factores de risco em doentes com síndrome de apneia obstrutiva do sono (SAOS sob SVN. Material e métodos: Estudo descritivo transversal que incluiu 80 doentes com SAOS sob SVN. Efectuada comparação entre dois grupos, com e sem IN, relativamente a características demográficas, relacionadas com a doença, e personalidade. Foram excluídos os doentes sob medicação ansiolítica e/ou antidepressiva, com perda ponderal superior ou igual a 10%, e com sintomas da síndrome das pernas inquietas. Resultados: A mediana de idades dos doentes incluídos foi de 60,0 (intervalo interquartil (IIQ 10,0 anos; 82,5% eram do sexo masculino. Os valores iniciais medianos da escala de sonolência de Epworth (ESE e do índice de apneia-hipopneia (IAH foram de 12,5 (IIQ 9,0 e de 44,1 (IIQ 22,4/h, respectivamente. A maioria dos doentes (91,3% estava sob pressão positiva nas vias aéreas em modo automático (auto-adjusting positive airway pressure (APAP. A insónia prévia ao uso de SVN estava presente em 30% (n = 24 dos doentes. A prevalência de IN foi de 21,4% (12/56 e os subtipos de insónia inicial e/ou intermédia foram os mais frequentes (n = 11. Foi encontrada uma relação negativa estatisticamente significativa entre a IN e a pressão em 90% do tempo de SVN (P90 (p = 0.040. Conclusões: Os doentes com SAOS sob SVN apresentaram uma prevalência elevada de IN. Os doentes com IN apresentaram níveis inferiores de pressão de SVN comparativamente com os outros. Abstract: Introduction: New-onset insomnia (NOI associated with nocturnal ventilatory support (NVS is

  8. Diferenças entre os Sexos no Aproveitamento Escolar, na Sintomatologia de Stress e na Qualidade do Sono em um Grupo de Adolescentes The Differences between the Gender in School Performance, in the Symptoms of Stress and Sleep Quality in a Group of Adolescents

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    Gema Galgani de Mesquita Duarte

    2014-03-01

    Full Text Available Objetivo: Este estudo, pioneiro no Brasil, apresentado à Faculdade de Ciências Médicas (UNICAMP, em caráter dissertativo, transversal descritivo, teve por objetivo relacionar as variáveis: aproveitamento escolar, stress e qualidade do sono em um grupo de adolescentes do ensino médio. Materiais e métodos: amostra de 160 adolescentes, ambos os gêneros, entre 15 a 18 anos, estudantes do ensino médio na cidade de Alfenas, Minas Gerais, Brasil. Para a coleta de dados, utilizou-se dos instrumentos: 1 Índice de Qualidade de Sono de Pittsburgh (IQSP; 2 Inventário de sintomas de stress para adultos de Lipp (ISSL; 3 Boletins dos alunos, por meio dos quais foram recolhidas as faltas e as notas. Resultados: Dentre os participantes, 65,63% são do gênero feminino. Em se tratando do aproveitamento escolar, observaram-se as médias 0,64 para o grupo feminino (F e 0,60 para o masculino (M (p=0,04. Para o número de faltas, têm-se as médias de 28,1 (F e de 30,3 (M (p=0,7440. Em relação à sintomatologia de stress, 65,71% (F e 29,09% (M foram classificados estressados e 34,29% (F e 70,91% (M não apresentaram sintomas de estresse (p< 0,001. Referente à qualidade do sono, observou-se que as mulheres apresentaram pior qualidade, sendo a média 6,0 (F e de 5,3 (M (p=0,27; na classificação do sono, 68,57% (F e 61,82% (M não dormem bem. Conclusão: O grupo feminino apresentou melhor aproveitamento nas atividades escolares, com notas mais elevadas e maior assiduidade, maior sintomatologia de stress e pior qualidade do sono. Objective: This dissertational, transversal and descriptive study, presented at the School of Medical Sciences of UNICAMP, aims at establishing a connection between the variables “school learning”, “stress” and “sleep quality” in high school adolescents. Materials and Methods: A sample of 160 high-school students of both genders, aged 15-18 years, in Alfenas, Minas Gerais, Brazil. For data collection, the following

  9. Prevalência de fatores de risco para a síndrome da apnéia obstrutiva do sono em motoristas de ônibus interestadual Prevalence of risk factors for obstructive sleep apnea syndrome in interstate bus drivers

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    Carlos Alberto de Assis Viegas

    2006-04-01

    Full Text Available OBJETIVO: Verificar a prevalência de fatores de risco para a síndrome da apnéia obstrutiva do sono em motoristas de ônibus interestadual. MÉTODOS: Foram avaliados 262 motoristas profissionais de ônibus interestadual, de empresa brasileira baseada no Distrito Federal, por questionário para avaliar distúrbios respiratórios do Sono, Escala de Sonolência de Epworth, testes de atenção concentrada e difusa, e medidas antropométricas. RESULTADOS: Encontravam-se com o peso acima do ideal 68% da amostra estudada, dos quais 34% apresentaram circunferência do pescoço = 42 cm. Durante o trabalho os motoristas referiram uso de tabaco (27%, refrigerantes à base de cola (55%, álcool (65% e café (88%, e 28% dos motoristas apresentaram mais de dez pontos na Escala de Sonolência de Epworth. Houve ainda 36% de roncadores, 5% referiram paradas respiratórias durante o sono, 12% apresentaram sensação de sufocamento, 29% sono agitado e 48% referiram sentir sono ao dirigir. Já se envolveram em acidentes de trânsito 42% dos motoristas e em 7,6% dos casos o acidente foi devido a sonolência excessiva. Aqueles com mais de dez pontos na Escala de Sonolência de Epworth apresentaram nível de atenção concentrada comprometido e quanto maior a circunferência do pescoço e a hipersonolência, menor a atenção difusa. CONCLUSÃO: No grupo de motoristas estudados, há uso alarmante de substâncias estimulantes e alta prevalência de hipersonolência diurna, que leva a diminuição da atenção.OBJECTIVE: To determine the prevalence of risk factors for obstructive sleep apnea syndrome in interstate bus drivers. METHODS: This study involved 262 professional interstate bus drivers employed by a Brazilian company headquartered in the Federal District. The drivers were evaluated using a questionnaire designed to assess respiratory sleep disorders, the Epworth Sleepiness Scale, test of sustained attention, test of divided attention and anthropometric

  10. Padrões de sono de estudantes ingressantes na Graduação em Enfermagem Padrones de sueño de estudiantes de enfermería en lo primero-año Sleep patterns of first-year nursing students

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    Renata Furlani

    2005-06-01

    Full Text Available Trata-se de estudo exploratório e descritivo com o objetivo de identificar os padrões de sono de estudantes ingressantes na graduação. Desenvolvido na Universidade Estadual de Campinas SP, os dados foram coletados em dois momentos distintos por meio do Índice de Qualidade de Sono de Pittsburgh. Durante as férias, os estudantes apresentaram melhor qualidade/ duração de sono e adoção de horários mais condizentes com seu cronotipo. Após o início das aulas, maior número apresentou sono de má qualidade e indisposição durante o dia, talvez decorrente de maior sujeição aos horários da universidade ou à adoção de hábitos irregulares de sono. Tais achados podem estar relacionados com o desempenho acadêmico dos estudantes o que destaca a importância do desenvolvimento de estudos futuros.Estudio exploratório/ descriptivo, describe patrones de sueño de estudiantes universitarios de primer año da Universidad Estadual de Campinas, Brasil. Se colecto información en dos ocasiones mediante el Pittsburgh Sleep Quality Index. Resultados mostraron que los estudiantes reportan sueño de mejor calidad y duración prolongada durante las vacaciones y hábitos de sueño en conformidad con el cronotipo. Después del comienzo de clases, gran numero de estudiantes reporto sueño de calidad pobre y indisposición durante el día que pueden ser atribuidos al cambio de horario que la universidad impone sobre ellos o a la irregularidad de patrones de sueño adquiridos. Posible relación entre estos câmbios en los patrones de sueño y desempeño académico, enfatiza la importancia de otros estudios en esta área.This exploratory and descriptive study aimed at describing sleep patterns of first-year university students at the beginning of their course. The study was conducted at Campinas State University, Brazil. Data were collected in two points of time using Pittsburgh Sleep Quality Index. Results showed that students report sleep of better

  11. Avaliação da obstrução da via aérea superior através da videonasofaringoscopia: comparação da manobra de Müller com o sono induzido Evaluation of airway obstruction by nasopharyngoscopy: comparison of the Müller maneuver versus induced sleep

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    Marcelo Gervilla Gregório

    2007-10-01

    Full Text Available A nasofaringoscopia com realização de Manobra de Müller é freqüentemente utilizada para determinar o local da obstrução na via aérea superior. No entanto, sua utilidade é controversa, uma vez que é realizada com o paciente acordado e pode não reproduzir os fenômenos obstrutivos que ocorrem durante o sono. OBJETIVOS: Comparar o grau de obstrução faríngea nas regiões retropalatal e retrolingual que ocorrem durante a manobra de Müller com aquelas que ocorrem durante o sono induzido. MATERIAL E MÉTODOS: Estudo prospectivo de 8 pacientes (3 homens e 5 mulheres com idade (média ±desvio padrão de 48,6 ± 9,2 anos de idade através de videonasofaringoscopia durante a manobra de Müller e durante o sono induzido por midazolam endovenoso. RESULTADOS: Observamos obstrução retropalatal similar durante a manobra de Müller e sono induzido (média + desvio padrão 3,13 + 0,99 e 2,75 + 0,46, respectivamente, p= 0,234. Em contraste, a obstrução retrolingual foi significantemente menor durante a manobra de Müller (média + desvio padrão 0,63 + 1,06 e 2,63 + 1,30, respectivamente, p= 0,005. CONCLUSÃO: O método do sono induzido foi seguro sob as condições de monitorização adotadas, tendo detectado maior ocorrência de colapso retrolingual do que a manobra de Müller.The use of nasopharyngoscopy during the application of intrathoracic pressure (Müller maneuver is frequently employed to establish the site of upper airway obstruction. The Müller maneuver, however, is used when the patient is awake and therefore may not correlate with obstruction occurring during sleep. AIM: to compare the degree of pharyngeal obstruction in the retropalatal and retroglossal regions during the Müller maneuver versus induced sleep using nasopharyngoscopy. STUDY DESIGN: A prospective, case series study. MATERIAL AND METHODS: Eight patients (three males, five females, with a mean age of 48.6 +/- 9,2 year, underwent nasopharyngoscopy to assess airway

  12. Sono-luminescence and nuclear fusion

    International Nuclear Information System (INIS)

    Seife, Ch.; Hilgenfeldt, S.; Lohse, D.

    2002-01-01

    This article presents multi-bubble and single-bubble luminescence. Since long scientists have known that ultra-sound waves could trigger the formation of bubbles in water (phenomenon called cavitation) but in 1930, for the first time experiments showed that these bubbles could emit light in particular conditions. In 1989 F. Gaitan succeeded in trapping a single bubble by using stationary ultra-sound waves, this bubble was exploding 20.000 times per second according to the frequency of the wave while emitting a series of flashes of light. Some scientists thought that the gas inside the bubble could reach very high values of temperature and pressure, and proposed the possibility of nuclear fusion to explain the excess of neutrons that has been evidenced in a cavitation experiment with deuterated acetone. The last part of this article describes the controversy triggered by the article describing this experiment, that was published by 'Science' in march 2002. (A.C.)

  13. Degradation of surfactants by sono-irradiation

    International Nuclear Information System (INIS)

    Ashokkumar, M.; Grieser, F.; Vinodgopal, K.

    2000-01-01

    Full text: The ultrasound induced decomposition of a commercially available polydisperse nonylphenol ethoxylate surfactant (Teric GN9) has been investigated. Nearly 90% mineralization and/or degradation into volatile products of the surfactant is achieved after sonication for 24 hours. Ultrasound has been found to be a useful tool to achieve a number of chemical processes. Linear and branched alkyl benzene sulfonates and alkyl nonylphenol ethoxylates are widely used surfactants which accumulated in the environment and contribute to a well-recognised pollution problem. We have investigated the use of ultrasound in the degradation of both types of surfactants with the aim of understanding the mechanism of degradation in order to optimise the decomposition process. In this presentation, we report on the sonochemical degradation of Teric GN9- polydisperse, a nonylphenol ethoxylate with an average of 9 ethylene oxide units. The ultrasound unit used for the degradation studies of the surfactant solutions was an Allied Signal (ELAC Nautik) RF generator and transducer with a plate diameter of 54.5 mm operated at 363 kHz in continuous wave mode at an intensity of 2 W/cm 2 . Ultrasound induced cavitation events generate primary radicals inside gas/vapour filled bubbles. Due to the extreme conditions (T ∼ 5000 K; P ∼ 100 atm) generated within the collapsing bubble, H and OH radicals are produced by the homolysis of water molecules, if water is the medium of sonication. These primary radicals attack the surfactant molecules adsorbed at the bubble/water interface. The initial rate of reaction of the surfactant was found to be dependent on the monomer concentration in solution below and above the critical micelle concentration of the surfactants. This result strongly suggests that the initial radical attack on the surfactants occurs at the cavitation bubble/solution interface, followed by oxidative decomposition and pyrolysis of volatile fragments of the surfactant within the bubble. Complete mineralisation/decomposition has been found to be a slow process. Evidence will be provided during the presentation to support these arguments

  14. Critérios diagnósticos e tratamento dos distúrbios respiratórios do sono: RERA Diagnostic criteria and treatment for sleep-disordered breathing: RERA

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    Luciana de Oliveira Palombini

    2010-06-01

    Full Text Available Na polissonografia, RERA é definido como um parâmetro respiratório que indica um despertar associado a um evento respiratório e um aumento do esforço respiratório. Inicialmente, RERA foi descrito com o uso da manometria esofágica utilizada para avaliação do esforço respiratório. Esse maior esforço respiratório ocorre como resposta a um aumento da resistência da via aérea superior, aspecto presente na fisiopatologia dos distúrbios respiratórios do sono, entre esses, SAOS e SRVAS. Posteriormente, o uso de cânula de pressão nasal foi relatado como uma maneira confiável e mais sensível que o termistor para a identificação de eventos de redução do fluxo aéreo e também como um substituto da manometria esofágica para a identificação de períodos de aumento da resistência na via aérea superior. Consequentemente, a American Academy of Sleep Medicine recomenda o uso de um dos métodos para a identificação de RERA, que é definido por um padrão de achatamento da curva inspiratória, característico da limitação ao fluxo aéreo. Embora RERA seja identificado e avaliado na pratica médica, sua padronização ainda é necessária. Portanto, recomenda-se que os laudos de polissonografia indiquem quais eventos respiratórios anormais foram considerados na avaliação do grau de gravidade do distúrbio respiratório.In polysomnography, RERA is defined as a respiratory parameter that indicates an arousal associated with a respiratory event and an increase in respiratory effort. Initially, RERA was described by means of esophageal manometry for the evaluation of respiratory effort. This greater respiratory effort occurs as a response to an increase in upper airway resistance, which is a factor present in the pathophysiology of sleep-disordered breathing, such as obstructive sleep apnea syndrome and upper airway resistance syndrome. Later, the use of a nasal pressure cannula was reported to be a reliable means of identifying

  15. Avaliação do padrão e das queixas relativas ao sono, cronotipo e adaptação ao fuso horário dos atletas brasileiros participantes da paraolimpíada em Sidney - 2000 Evaluation of sleep patterns and sleep-related complaints, chronotype, and time zone adaptation of Brazilian athletes participant in the Sydney 2000 paralympic games

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    Marco Túlio de Mello

    2002-06-01

    Full Text Available Diversas metodologias têm sido desenvolvidas para investigar a qualidade e as principais queixas e distúrbios relacionados ao sono. Uma forma conhecida de investigar as características temporais dos organismos é a cronobiologia, ciência divide a população em três cronotipos básicos para avaliar as diferenças individuais na prevalência pelos horários de vigília e de sono: os matutinos, os vespertinos e os indiferentes. Outro ponto importante, é que existem poucos estudos relacionando o padrão do sono em indivíduos com necessidades especiais e a atividade física. O sono é considerado como restaurador e o exercício está associado diversas alterações no padrão de sono. A maioria dos estudos referente ao feito do exercício sobre o sono podem ser abordados ou correlacionados com a teoria de restauração das funções do sono. O objetivo deste estudo foi o de avaliar o padrão, queixas relativas ao sono, cronotipo e adaptação ao fuso horário de Sidney dos atletas brasileiros que disputaram a paraolimpíada em 2000. Participaram da avaliação 64 atletas paraolímpicos, com idades de 26,3 (± 5,9. Todos os atletas responderam aos questionários de padrão e queixas relativas ao sono e cronotipo, passando também por uma adaptação ao fuso horário de Sidney. Oprocesso de sincronização ao fuso horário foi realizado de forma abrupta, na tentativa de romper com o ciclo claro-escuro que estava relacionado ao horário brasileiro. Os resultados demonstram que 34,4% dos atletas apresentavam uma insatisfação com o seu próprio sono, sendo que os distúrbios de sono mais relatados foram: apnéia (14%, refluxo gástrico (15,6%, dor de cabeça (14,1%, ansiedade pós-pesadelo (39,1%, caimbras (20,3%, sonilóquio (26,6%, pânico noturno (9,4%, PLM (9,4% e bruxismo (9,4%. Em relação a avaliação do cronotipo dos atletas, 73,43% se demonstraram indiferentes, 6,22% vespertinos moderados e 20,31% matutinos moderados. Observou-se boa

  16. Trabalho em turnos: estado geral de saúde relacionado ao sono em trabalhadores de enfermagem Trabajo por turnos: estado general de salud relacionado al sueño de trabajadores de enfermería Shift work: overall health state related to sleep in nursing workers

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    Sandra Soares Mendes

    2012-12-01

    Full Text Available O objetivo deste estudo foi identificar os sintomas referentes ao estado geral de saúde associado ao trabalho em turnos de enfermagem e relacioná-los com a qualidade do sono. O estudo foi realizado no Hospital da Irmandade da Santa Casa de Poços de Caldas, Minas Gerais. Participaram 136 profissionais de enfermagem, com média de idade de 33,1 anos, divididos nas seguintes categorias: enfermeiro (8,1%; técnico de enfermagem (80,9%; auxiliar de enfermagem dos turnos diurno e noturno (11%. Os sintomas de saúde foram identificados a partir do Inventário de Estado Geral de Saúde, e a qualidade do sono foi avaliada pelo Diário do Sono. Os dados foram estatisticamente significativos pelo Teste Qui-Quadrado (p=0,021 para a presença do sintoma de flatulência ou distensão abdominal no turno noturno. Constatou-se com a análise de regressão linear múltipla que os sujeitos do turno diurno que apresentaram os sintomas de má digestão (às vezes ou sempre e irritabilidade (sempre tiveram pior qualidade de sono noturno.Se objetivó identificar síntomas referentes al estado general de salud asociado al trabajo por turnos de enfermería y relacionarlos con la calidad del sueño. Realizado en Hospital de la Hermandad de Santa Casa de Poços de Caldas, estado de Minas Gerais. Participaron (n=136 profesionales de enfermería, con media etaria de 33,1 años, divididos en las categorías: enfermero 8,1%, técnico de enfermería 80,9%, auxiliar de enfermería 11,0% de turnos diurno y nocturno. Los síntomas de salud se identificaron mediante Inventario General de Salud y la calidad de sueño se evaluó por Diario del Sueño. Datos estadísticamente significativos según test Chi-Cuadrado (p=0,021 para presencia del síntoma de flatulencia o distensión abdominal en turno nocturno. Mediante análisis de regresión lineal múltiple, los sujetos del turno diurno que presentaban síntomas de mala digestión (eventualmente o siempre e irritabilidad (siempre

  17. Sleep problems and social support: Frailty in a Brazilian Elderly Multicenter Study Problemas de sueño y soporte social: estudio multicéntrico sobre Fragilidad en Ancianos Brasileños Problemas de sono e suporte social: estudo multicêntrico Fragilidade em Idosos Brasileiros

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    Shintia Viana da Costa

    2011-08-01

    ño en general, demorar en adormecer y dormir mal en la noche, presentaron puntajes inferiores a los de ancianos que negaban esos problemas, en la Escala de Percepción de Calidad de Soporte Social. Las estrategias para mejorar la calidad de soporte social podrían contribuir para minimizar los problemas de sueño.Esta pesquisa teve como objetivo identificar relações entre qualidade do suporte social percebido, problemas de sono e hábito de cochilar, em idosos da comunidade. Trata-se de recorte do estudo Fragilidade em Idosos Brasileiros (Fibra, projeto multicêntrico, desenvolvido em 17 cidades brasileiras. Participaram 498 idosos, capazes de responder às entrevistas, sem déficit cognitivo ou funcional grave. Adotou-se, para coleta de dados: questionário sociodemográfico, escala de percepção da qualidade do suporte social, questões sobre problemas de sono (perfil de saúde de Nottingham; questões sobre hábito de cochilar (Minnesota Leisure Activity Questionnaire. Utilizou-se estatística descritiva e teste de Mann-Whitney para tratamento dos dados. Idosos que referiram problemas de sono em geral, demorar para adormecer e dormir mal à noite apresentaram escores inferiores aos dos idosos que negavam esses problemas, na escala de percepção de qualidade de suporte social. Estratégias para melhoria da qualidade de suporte social poderiam contribuir para minimizar problemas de sono.

  18. Diferenças entre o homem e a mulher na apresentação clínica de doentes diagnosticados com síndroma de apneia obstrutiva do sono Differences between men and women in the clinical presentation of patients diagnosed with obstructive sleep apnea syndrome

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    MR Shepertycky

    2006-05-01

    Full Text Available A importância clínica da patologia do sono, particularmente, da síndroma de apneia obstrutiva do sono tem vindo a tornar-se cada vez mais evidente nas últimas décadas. Paralelamente, verificou-se um número crescente de doentes com a confirmação diagnóstica da doença resultante de uma maior sensibilização dos clínicos para esta patologia e consequente maior solicitação de estudos poligráficos do sono. A síndroma de apneia obstrutiva do sono (SAOS é uma doença comum afectando entre 2 a 4% da população adulta de meia-idade. Os doentes com este diagnóstico têm episódios recorrentes de apneias nocturnas seguidas de microdespertares. Está documentado que a SAOS é um factor de risco significativo para o desenvolvimento de outras patologias como sejam hipertensão arterial, arritmias cardíacas, enfarte agudo do miocárdio, acidente vascular cerebral e perturbações cognitivas, caracterizando-se por hipersonolência diurna a que está associado um aumento da frequência de acidentes de viação. Embora esteja bem documentado que o homem tem maior incidência de SAOS que a mulher (4% versus 2%, existe pouca informação sobre as diferenças de apresentação clínica inicial. Pensa-se que esta patologia está subdiagnosticada em mais de 90% das mulheres com SAOS moderada ou grave. Também está demonstrado que pode haver um significativo aumento da mortalidade aos 5 anos na mulher com este diagnóstico. A não valorização de factores únicos no género feminino tem condicionado, por vezes, conclusões inconsistentes e mesmo falsas. O objectivo do presente trabalho foi comparar as diferenças na apresentação clínica da SAOS de acordo com os sexos. Trata-se de um estudo randomizado englobando 130 mulheres com o diagnóstico de SAOS e um grupo controlo de igual número de indivíduos do sexo masculino com a mesma patologia, tendo sido todos submetidos a um registo poligráfico nocturno. A idade média, índice de massa

  19. Episódio depressivo maior, prevalência e impacto sobre qualidade de vida, sono e cognição em octogenários The prevalence of major depression and its impact in the quality of life, sleep patterns and cognitive function in a octogenarian population

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    Flávio MF Xavier

    2001-06-01

    Full Text Available OBJETIVOS: Determinar a prevalência de depressão maior em uma população de sujeitos acima de 80 anos residentes na comunidade, comparar os padrões de sono e a função cognitiva entre controles normais e sujeitos com depressão maior e estimar a freqüência de outros transtornos psiquiátricos entre controles e sujeitos deprimidos. MÉTODOS: De uma população de 219 habitantes com mais de 80 anos, residentes em um município semi-rural no sul do Brasil (município de Veranópolis, RS, selecionou-se uma amostra randômica e representativa de 77 sujeitos (35%. Desse grupo, 5 sujeitos que apresentavam critérios de DSM-IV para depressão maior foram comparados com 50 controles sem diagnóstico de demência, delirium ou qualquer transtorno do humor. Os padrões de sono foram avaliados pelo Índice de Pittsburgh de Qualidade do Sono e por um diário do ciclo sono/vigília completado ao longo de duas semanas. Para a avaliação cognitiva, foram usados 5 testes neuropsicológicos: teste de lembranças seletivas de Buschke-Fuld; teste lista de palavras da bateria do CERAD; teste de fluência verbal; e 2 subtestes da bateria de memória de Wechsler. RESULTADOS: A prevalência de depressão maior foi de 7,5%. Sujeitos com esse diagnóstico, quando comparados a sujeitos do grupo-controle, apresentavam mais freqüentemente comorbidade com transtorno de ansiedade generalizada, usavam mais benzodiazepínicos e tinham uma pior qualidade de vida pela escala "Short-form 36". Os idosos deprimidos, quando comparados aos controles, tinham os mesmos padrões de sono e apresentavam o mesmo desempenho nos testes neuropsicológicos. CONCLUSÃO: Os resultados corroboram o conceito de que episódios depressivos são freqüentes entre idosos com mais de 80 anos, causando impacto sobre a qualidade de vida associada à saúde e cursando comorbidade freqüente com transtorno de ansiedade generalizada. Entre os idosos octogenários residentes na comunidade, a depress

  20. Reacção paradoxal da pressão arterial ao tratamento com pressão positiva na via aérea em doentes com apneia do sono

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    C. Chaves Loureiro

    2011-03-01

    Full Text Available Resumo: Introdução: Doentes com síndrome de Apneia Obstrutiva do Sono (SAOS podem desenvolver hipertensão arterial (HTA sendo a pressão positiva na via aérea (PAP um tratamento eficaz no controlo da pressão arterial (PA. Objectivos: Analisar uma população de doentes com SAOS que desenvolveu aumento inesperado da PA após o uso de PAP e verificar a existência de correlações entre o aumento da PA, quer com os índices de gravidade da SAOS, quer com a adesão ao tratamento com suporte ventilatório nocturno. Métodos: Análise retrospectiva e descritiva de 30 doentes com SAOS e hipertensão previamente controlada, tratados com PAP, em média durante um ano, que desenvolveram um aumento da pressão arterial, definida como aumento de 5 mmHg na Pressão Arterial Sistólica (PAS e/ou Diastólica (PAD, após instituição de terapêutica PAP. Análise correlativa do aumento da PA com os índices de gravidade da SAOS e com a adesão ao tratamento, utilizando o coeficiente de Pearson. Resultados: De 508 doentes consecutivos seguidos no nosso Departamento, tratados com suporte ventilatório nocturno, 30 evoluíram com aumento de PA após o início do tratamento (idade 58 anos (SD 10,8, índice de Apneia-Hipopneia (IAH 46,1 (SD 18,68. Após o uso de PAP, a variação da Pressão Arterial Média (PAM, da PAS e da PAD foi, respectivamente, de 16 mmHg, 20 mmHg e 6 mmHg (SD: 15,0; 25,0; 19,4. Nenhum doente mostrou aumento significativo de Índice de Massa Corporal (IMC. O valor da Escala de Sonolência de Epworth (ESE diminuiu 8,9 pontos (SD 5,48. As variações de PAM, PAS e PAD não se relacionaram com P90/P95, IAH residual, fugas ou adesão a PAP. Conclusões: Neste grupo que desenvolveu um aumento da PA com o uso de PAP não se identificaram características específicas. Não foram encontradas correlações entre os aumentos

  1. Health, sleep and lack of time: relations to domestic and paid work in nurses Saúde, sono e falta de tempo: relações com o trabalho profissional e doméstico em enfermeiras

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    Luciana Fernandes Portela

    2005-10-01

    Full Text Available OBJECTIVE: To assess whether reported morbidity and complaints of lack of time and sleep are associated with the burden of professional work and housework among nurses. METHODS: A cross-sectional exploratory study was carried out among female nurses and nurse assistants (N=206 of a public hospital in Rio de Janeiro, Brazil. Data were collected by means of a questionnaire. The prevalence ratio and 95% confidence intervals were estimated. RESULTS: Mean duration of professional work and housework time was 40.4 and 31.6 hours/week, respectively. Long professional working time (over 44 hours/week were associated with mild emotional disorders (PR=1.37; 95% CI: 1.05-1.80, complaints of lack of time for resting/leisure (PR=1.61; 95% CI: 1.31-1.97, housework (PR=1.48; 95% CI: 1.12-1.97, and childcare (PR=1.99; 95% CI: 1.51-2.63. Long housework time (over 28 hours/week was associated with lower prevalence of lack of time for childcare (PR=0.62; 95% CI: 0.46-0.84. High housework load was associated with lack of personal time and complaints of varicose veins (PR=1.31; 95% CI: 1.14-1.50 and PR=1.31; 95% CI: 1.08-1.58, respectively. Complaints of varicose veins were also frequent among female nurses with a total work load above 84 hours (PR=1.30; 95% CI: 1.05-1.61, though this group has shown a lower prevalence of arterial hypertension and recurrent headaches (PR=0.35; 95% CI: 0.15-0.83 and PR=0.53; 95% CI: 0.32-0.89, respectively. CONCLUSIONS: Results suggest that both professional and home environments are relevant in the evaluation of work overload on nurses' health and their family and social life. It is stressed the need for instruments for analyzing total workload among female populations.OBJETIVO: Avaliar a associação entre a carga de trabalho profissional e doméstico com doenças e queixas sobre o sono e falta de tempo em enfermeiras. MÉTODOS: Estudo exploratório transversal com profissionais de enfermagem do sexo feminino (N=206 de um hospital p

  2. O plantão noturno em anestesia reduz a latência ao sono El plantón nocturno en anestesia reduce la latencia al sueño Short sleep latency in residents after a period on duty in anesthesia

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    Lígia Andrade da Silva Telles Mathias

    2004-10-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Os médicos em geral, os anestesiologistas em particular, têm jornadas de trabalho prolongadas. Os residentes de Anestesiologia podem apresentar fadiga e estresse significativos. O objetivo deste trabalho foi verificar, em residentes de primeiro e segundo anos a latência do sono em períodos após plantão. MÉTODO: Foram avaliados 11 residentes em situações distintas: às 7 horas da manhã, após noite de sono normal (> 7h, sem plantão nos 3 dias anteriores (M1; às 7 horas da manhã, após 24 horas de trabalho, sem dormir, sem plantão nos 3 dias anteriores (M2; às 13 horas da tarde, após 30 horas de trabalho, sem dormir, sem plantão nos 3 dias anteriores (M3. Em todas essas situações foi realizado eletroencefalograma (EEG contínuo, em sala apropriada para registro dos sinais de sono, avaliando a latência ao sono (LS. RESULTADOS: Verificou-se redução significativa da LS entre os residentes, após 24 ou 30 horas de plantão sem dormir. Entre os residentes que tiveram noite de sono normal na véspera do exame, 36,4% apresentaram LS em nível considerado patológico. CONCLUSÕES: A jornada de plantão de 24 ou 30 horas leva a valores de LS menores que 5 minutos, considerados patológicos, refletindo a fadiga extrema de residentes de Anestesiologia. Pode ser importante a regulamentação do número de horas de descanso pós-plantão.JUSTIFICATIVA Y OBJETIVOS: Los médicos en general, los anestesiologistas en particular, tienen jornadas de trabajo prolongadas. Los practicantes de Anestesiologia pueden presentar fatiga y estrés significativos. El objetivo de este trabajo fue verificar, en practicantes (estudiantes de primero y segundo años la latencia del sueño en períodos después del plantón. MÉTODO: Fueron evaluados 11 residentes en situaciones distintas: a las 7 horas de la mañana, después de una noche de sueño normal (> 7h, sin plantón en los 3 días anteriores (M1; a las 7 horas de la ma

  3. WHOQOL-OLD assessment of quality of life in elderly patients with Parkinson's disease: influence of sleep and depressive symptoms Qualidade de vida (WHOQOL-OLD em idosos com doença de Parkinson: influência de sintomas do sono e depressivos

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    Regina Margis

    2010-06-01

    Full Text Available OBJECTIVE: Parkinson's disease is a neurodegenerative disease with a number of motor and non-motor features that can affect quality of life. In this study, we aimed to assess quality of life, as well as to evaluate the potential determinants of quality of life, such as sleep quality, motor and depressive symptoms, in elderly patients with Parkinson's disease. METHOD: This was a cross-sectional study in which we applied the World Health Organization Quality of Life Assessment for Older Adults in 57 Parkinson's disease patients over 60 years of age. RESULTS: Total World Health Organization Quality of Life Assessment for Older Adults score was found to be associated with Parkinson's disease severity (rs = -0.43; p OBJETIVO: A doença de Parkinson é uma enfermidade neurodegenerativa com diversas manifestações motoras e não-motoras que podem provocar impacto na qualidade de vida. Este estudo teve como objetivo avaliar a qualidade de vida em pacientes com doença de Parkinson com idade superior a 60 anos por meio do questionário World Health Organization Quality of Life Assessment for Older Adults e possíveis fatores determinantes, tais como qualidade de sono, sintomas motores e depressivos. MÉTODO: Foi realizado estudo transversal avaliando a qualidade de vida pelo questionário World Health Organization Quality of Life Assessment for Older Adults em 57 pacientes com doença de Parkinson. RESULTADOS: World Health Organization Quality of Life Assessment for Older Adults total apresentou associação com a severidade da doença de Parkinson (r s= -0,43; p < 0,001. As facetas de habilidade sensorial e de participação social apresentaram maior pontuação nos indivíduos com estágio leve em comparação ao grupo com doença de Parkinson avançada. World Health Organization Quality of Life Assessment for Older Adults (faceta-I apresentou associação com Índice de Qualidade de Sono de Pittsburg e Escala de Sono na Doença de Parkinson (r p= -0

  4. Estudo sobre o impacto do uso de aparelho de emissão de pressão positiva contínua nas vias aéreas superiores na hipersonia diurna em portadores da síndroma de apneia do sono

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    Clélia Maria Ribeiro Franco

    2009-03-01

    Full Text Available Resumo: Introdução: A síndroma da apneia-hipopneia obstrutiva do sono (SAHOS é um distúrbio respiratório de elevada morbimortalidade. A terapia com pressão positiva contínua das vias aéreas (CPAP representa o tratamento conservador mais prescrito para a SAHOS e tem o intuito de restabelecer a patência das vias aéreas, normalizando o índice de eventos respiratórios obstrutivos, corrigindo os sintomas.Objectivo: Avaliar o impacto do uso do CPAP nasal sobre a hipersonia diurna em portadores de SAHOS.Método: Amostra de vinte doentes portadores de SAHOS diagnosticados por estudo de polissonografia de noite inteira, usuários ou não de CPAP nasal, todos avaliados quanto à hipersonia diurna através da escala de sonolência de Epworth.Resultados: O decréscimo do nível de sonolência diurna dos usuários de CPAP nasal foi significante (p=0,017, enquanto para não usuários de CPAP nasal a média do mesmo diminuiu sem significância estatística (p=0,162. Quanto à adesão à terapia com CPAP, 100% dos usuários relataram benefícios e, destes, 50% referiram desconfortos durante o uso.Conclusões: Portadores de SAHOS usuários do CPAP nasal têm o seu nível de hipersonia diurna diminuído em relação àqueles que não o utilizam.Rev Port Pneumol 2009; XV (2: 215-226 Abstract: Background: Obstructive sleep apnoea-hypopnoea syndrome (OSAHS is a respiratory disorder with high morbidity and mortality. Continuous positive airway pressure (CPAP is the most commonly prescribed conservative treatment for adults with OSAHS. CPAP therapy normalises or decreases OSAHS symptoms and can reduce and prevent OSAHS complications.Aims: To evaluate adherence to nasal CPAP treatment and CPAP impact on daytime drowsiness.Method: A sample of 20 patients evaluated for daytime drowsiness using the Epworth sleepiness scale and interviewed for adherence to nasal CPAP use

  5. Continuous spike-waves during slow waves sleep: a clinical and electroencephalografic study in fifteen children Ponta-onda contínua do sono lento: estudo clínico e eletrencefalográfico em quinze crianças

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    ADRIANA A. F. DJABRAIAN

    1999-09-01

    Full Text Available We report on the clinical and EEG features of 15 patients with the syndrome of "continuous spike waves during slow wave sleep" (CSWSS. The differential diagnosis of CSWSS includes benign epilepsy of childhood with centro-temporal spikes, and Landau-Kleffner and Lennox-Gastaut syndromes. We found normal CT and MRI features in 6 cases, periventricular leukomalacia with and without diffuse brain atrophy in 4 cases and hydrocephalus in 1 case. There was no association between specific neurological findings and CSWSS. Nine of our cases had relatively focal discharges, like some cases from the literature. The occurrence of CSWSS appears to be age-related, generaly between the ages of 5 to 12 years, with a strong temporal relation to the neupsychological deterioration in its nature, severity and prognosis. We believe that this striking disorder has been overlooked and that routine sleep EEG studies on epileptic children may disclose additional cases of CSWSS.Relatamos as características clínicas e eletroencefalográficas de 15 patientes com a síndrome de ponta-onda contínua do sono não-REM (POCSNR. O diagnóstico diferencial da POCSNR inclue a epilepsia benigna da infância com pontas centro-temporais e as síndromes de Landau-Kleffner e Lennox-Gastaut. Encontramos TC e RNM de crânio normais em 6 casos, leucomalácia periventricular em 4 e hidrocefalia em 1. Não houve associação de achados neurológicos específicos e a POCSNR. Nove dos nossos casos tinham descargas relativamente focais, como alguns casos da literatura. A ocorrência da POCSNR parece ser idade-dependente, geralmente entre 5 e 12 anos, com forte relação temporal à deteriorização neurocognitiva, em sua natureza, severidade e prognóstico. Acreditamos que esta síndrome tem sido pouco diagnosticada e que a realização rotineira de EEG em sono em crianças epilépticas possa revelar novos casos de POCSNR.

  6. Estudo comparativo da história clínica e da polissonografia na síndrome da apnéia/ hipopnéia obstrutiva do sono Comparative study between clinical history and polysomnogram in the obstructive sleep apnea/ hypopnea syndrome

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    Lys Maria Allenstein Gondim

    2007-12-01

    Full Text Available O reconhecimento dos distúrbios respiratórios do sono tem aumentado a cada ano. Manifestações, como o ronco, consideradas meros incômodos vêm adquirindo importância no que diz respeito à qualidade de vida e seu impacto social. OBJETIVO: Comparar a história clínica com os resultados da polissonografia (PSG, na Síndrome da Apnéia/Hipopnéia Obstrutiva do Sono (SAHOS, é o principal objetivo deste trabalho. MATERIAL E MÉTODOS: Foi realizado um estudo retrospectivo, com 125 pacientes, através da análise de questionários específicos, IMC e Escala de Epworth. RESULTADOS: Dentre os pacientes, 75 eram do sexo masculino e 50 do feminino. O principal sintoma foi a roncopatia. 46% apresentaram PSG normais, 30% SAHOS leve, 15% moderada e 9% severa, não se evidenciando correlação estatística entre a clínica e a PSG. Dentre as queixas, somente a insônia foi relevante, em análise univariada e em pacientes normais e com SAHOS leve (pRecognizing sleep-disordered breathing is on the rise every year. Manifestations, such as snoring, that were earlier considered mere inconvenients are now acquiring greater importance concerning life quality and social impact. AIM OF THE STUDY: To compare the clinical history to polysomnogram (PSG results in the Obstructive Sleep Apnea/Hypopnea Syndrome (OSAHS. MATERIALS AND METHODS: 125 patients were analyzed, in a retrospective study. Specific questionnaires, avaliations of Body Mass Index and Epworth Scale were carried out. RESULTS: Among the patients, 75 were males and 50 were females. The main symptom was snoring. 46% had normal PSG, 30% had light OSAHS, 15% moderate and 9% severe OSAHS and it was not observed a correlation between clinical data and PSG results. Concerning clinical symptoms, only insomnia has shown relevance when univariably analyzed in normal and light OSAHS patients (p<0,05 compared to patients with moderate and severe OSAHS, losing its importance when analyzed together with other

  7. EEG recording after sleep deprivation in a series of patients with juvenile myoclonic epilepsy Registros eletrencefalográficos após privação de sono em uma série de pacientes com epilepsia mioclônica juvenil

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    Nise Alessandra de Carvalho Sousa

    2005-06-01

    Full Text Available Seizures in Juvenile Myoclonic Epilepsy (JME are dependent on the sleep-wake cycle and precipitant factors, among which sleep deprivation (SD is one of the most important. Still an under diagnosed syndrome, misinterpretation of the EEGs contributes to diagnostic delay. Despite this, a quantitative EEG investigation of SD effects has not been performed. We investigated the effect of SD on EEGs in 41 patients, aged 16-50 yr. (mean 25.4, who had not yet had syndromic diagnosis after a mean delay of 8.2 yr. Two EEG recordings separated by a 48-hour interval were taken at 7 a.m. preceded by a period of 6 hours of sleep (routine EEG and after SD (sleep-deprived EEG. The same protocol was followed and included a rest wakefulness recording, photic stimulation, hyperventilation and a post-hyperventilation period. The EEGs were analyzed as to the effect of SD on the number, duration, morphology, localization and predominance of abnormalities in the different stages. A discharge index (DI was calculated. Out of the 41 patients, 4 presented both normal EEG recordings. In 37 (90.2% there were epileptiform discharges (ED. The number of patients with ED ascended from 26 (70.3% in the routine EEG to 32 (86.5% in the sleep-deprived exam. The presence of generalized spike-wave and multispike-wave increased from 20 (54.1% and 13 (35.1% in the first EEG to 29 (78.4% and 19 (51.4% in the second, respectively (pNa epilepsia mioclônica juvenil (EMJ, uma síndrome epiléptica ainda subdiagnosticada, as crises são dependentes do ciclo vigília-sono e de fatores precipitantes, entre os quais a privação de sono (PS é um dos mais importantes. A interpretação inadequada dos EEGs contribui para atraso no diagnóstico. Ainda não foi realizada investigação quantitativa sobre os efeitos da PS. Avaliamos o efeito da PS nos EEGs de 41 pacientes entre 16 e 50 anos (média 25,4 com EMJ em dois registros eletrencefalográficos, separados por intervalo de 48 horas. Os

  8. Dessaturação noturna: preditores e influência no padrão do sono de pacientes portadores de doença pulmonar obstrutiva crônica com hipoxemia leve em vigília Nocturnal desaturation: predictors and the effect on sleep patterns in patients with chronic obstructive pulmonary disease and concomitant mild daytime hypoxemia

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    Renata Claudia Zanchet

    2006-06-01

    Full Text Available OBJETIVO: Verificar o padrão da oximetria noturna em portadores de doença pulmonar obstrutiva crônica sem apnéia do sono e com hipoxemia leve em vigília, identificar prováveis parâmetros diurnos capazes de predizer a dessaturação noturna e verificar sua influência no padrão de sono. MÉTODOS: Avaliaram-se 25 pacientes, divididos em dois grupos: com e sem dessaturação noturna. RESULTADOS: Comparando-se o primeiro grupo (52% com o segundo observou-se: idade, 63 ± 5 versus 63 ± 6 anos; volume expiratório forçado no primeiro segundo, 53 ± 31% versus 56 ± 19% do previsto; relação entre volume expiratório forçado no primeiro segundo e capacidade vital forçada, 49 ± 14% versus 52 ± 10%; pressão parcial de oxigênio no sangue arterial, 68 ± 8mmHg versus 72 ± 68mmHg; saturação arterial de oxigênio, 93 ± 2% versus 94 ± 1%. O grupo com dessaturação noturna apresentou menores valores de saturação arterial de oxigênio diurna e saturação periférica de oxigênio noturna. Não houve diferença no padrão de sono entre os grupos. Houve correlação da relação entre o volume expiratório forçado no primeiro segundo e a capacidade vital forçada, pressão parcial de oxigênio no sangue arterial e saturação arterial de oxigênio diurnas, e saturação periférica de oxigênio no exercício com os níveis de saturação periférica de oxigênio noturna, porém somente a saturação arterial de oxigênio diurna foi preditora da dessaturação noturna. CONCLUSÃO: A única variável capaz de predizer dessaturação noturna foi a saturação arterial de oxigênio diurna. A dessaturação noturna não influencia o padrão de sono de portadores de doença pulmonar obstrutiva crônica com hipoxemia diurna leve.OBJECTIVE: To determine the nocturnal oximetry pattern in chronic obstructive pulmonary disease patients having no sleep apnea and presenting mild daytime hypoxemia, to identify probable daytime parameters capable of

  9. Contrast ultrasound using SonoVue for pelvic radiation with concurrent chemotherapy monitoring in stage I B-II cervical cancer; Apport de l'echographie Doppler avec injection de contraste pour la prise en charge des cancers du col de l'uterus de stades IB et II par chimioradiotherapie concomitante

    Energy Technology Data Exchange (ETDEWEB)

    Marret, H. [Hopital Bretonneau, Service de Gynecologie, 37 - Tours (France); Barillot, I. [Hopital Bretonneau, Service de Radiotherapie, 37 - Tours (France); Rolland, Y. [CRLCC Eugene-Marquis, 35 - Rennes (France); Leveque, J. [Hopital Anne-de-Bretagne, 35 - Rennes (France)

    2009-10-15

    The aim of the present study was to evaluate whether angiogenic parameters as assessed by trans vaginal color Doppler ultrasound and by enhanced cervix ultrasound may predict prognostic factors of stage I B greater than 4 cm and II cervical cancer treated by radio chemotherapy. A total of 40 patients with histologically proven advanced stage invasive cervical cancer will be evaluated by color Doppler, contrast ultrasound, and MRI before radiotherapy, after the second chemotherapy cycle and prior to surgery. Subjective assessment of the amount of vessels within the tumor (scanty-moderate or abundant) and resistance index (R.I.) will be recorded for Doppler, enhancement and washout period will be studied after injection of SonoVue for contrast ultrasound. All patients will have radical hysterectomy and pelvic lymph node dissection. Comparison with MRI results will be done. The main parameter studied will be persistence of tumor cells in the analysis of the radical hysterectomy. We expected to correlate contrast parameters with persistent disease in order to confirm ultrasound parameters that will be useful to monitor radio chemotherapy and to predict therapeutic answer of such treatment. (authors)

  10. Análise das funções cognitivas e sono na equipe de enfermagem nos turnos diurno e noturno Análisis de la función cognitiva y el sueño en el equipo de enfermería en los turnos de el día y nocturno Analysis of cognitive function and sleep of nursing staff on different shift work

    Directory of Open Access Journals (Sweden)

    Beatriz de Oliveira

    2013-03-01

    Full Text Available Este estudo teve como objetivo analisar a memória de curto prazo, a atenção e o padrão do sono na equipe de enfermagem nos turnos diurno e noturno. Participaram 109 sujeitos de uma instituição hospitalar de Minas Gerais, distribuídos nos turnos: diurno (n= 68 e noturno (n=41. Utilizou-se, para coleta de dados: Diário de sono e Testes da Bateria WAIS III. Os resultados para a medida da qualidade do sono dos sujeitos do turno noturno apresentou diferença significativa (pEste estudio tuvo como objetivo analizar los estándares de memoria a corto plazo, la atención y su sueño personal de enfermería en los turnos. Los participantes del estudio fueron 109 pacientes de un hospital, en Minas Gerais, distribuidos en el turno de día (n = 68 y turno de noche (n = 41. La recolección de datos se realizó a través del diario del sueño y de la batería de prueba WAIS III. Los resultados muestran que existe una diferencia significativa en la calidad del sueño del trabajo en turnos de noche (p The aim of this study was to analyze short-term memory, attention and sleep patterns of the nursing staff working night and day shifts. Study participants were 109 subjects in a hospital in Minas Gerais working on the day shift (n = 68 or night shift (n = 41. Data collection was performed using the Sleep Diary and WAIS-III Test Battery. The results showed a significant difference for the quality of sleep of those on night shift work (p <0.0001; ANOVA. The subjects on the day shifts performed better on the Digit Symbol with a significant difference (p = 0.0008; Mann-Whitney test. In conclusion, the quality of sleep of the group on the night shift showed lower averages compared with those on the day shifts, although they had greater total sleep. The level of attention showed to be best for the group on the day shift work.

  11. Sono, qualidade de vida e acidentes em caminhoneiros brasileiros e portugueses Sueño, la calidad de vida y accidentes en brasileños y portugueses conductores de camiones Sleep, quality of life and accidents in the lives of Brazilian and Portuguese truck drivers

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    José Carlos Souza

    2008-09-01

    Full Text Available Avaliaram-se os distúrbios do sono, trabalho em turnos, sonolência excessiva diurna (SDE e qualidade de vida (QV de 206 caminhoneiros brasileiros e 200 portugueses. Aplicaram-se a Escala de Sonolência de Epworth, o SF-36 e o PSQI. Os portugueses dormem mais nos dias de trabalho (pSe evaluaron disturbios del sueño, trabajo en turnos, somnolencia diurna excesiva (SDE y calidad de vida (CV, de 206 camioneros brasileños y 200 portugueses. Se aplicaron la Escala de Somnolencia de Epworth, SF-36 y PSQI. Los portugueses duermen más los días de trabajo (pSleep disorders, shift work, excessive daytime sleepiness (EDS and quality of life (QL were evaluated by Epworth sleepiness scale, SF-36 and PSQI in 206 Brazilian and 200 Portuguese truck drivers. Portuguese drivers sleep more on working days (p<0.0001 and on non-working days (p=0.0720 and do more shift work (37.50%, whereas Brazilian drivers wake up earlier on working days (p<0.0001 and on non-working days (p<0.0001. Sleep disorders affected 35.40% of Brazilian drivers and 21.50% of Portuguese drivers (p=0.0019, whereas 32.00% and 21.00% had respectively EDS (p=0.0015. Brazilian truck drivers drive over 16 hours a day (43.20% and use more amphetamines (11.10% (p<0.0001, while Portuguese drivers consume more alcohol (73.50% (p<0.0001. QL scores were better for Portuguese drivers regarding mental health (p<0.0001 and pain (p<0.0001 and better for Brazilian drivers regarding physical function (p<0.0001, vitality (p=0.0002 and social function (p<0.0001. Sleep disorders are highly prevalent in both countries.

  12. Sleep characteristics in children in the isolated rural African-Brazilian descendant community of Furnas do Dionísio, State of Mato Grosso do Sul, Brazil Características do sono da criança na comunidade negra rural isolada de Furnas do Dionísio no Mato Grosso do Sul

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    RUBENS REIMÃO

    1999-09-01

    Full Text Available Developmental and cultural factors affect sleep habits in childhood. The objective of this research was to determine sleep habits of children in the isolated rural African-Brazilian community of Furnas do Dionísio, Mato Grosso do Sul, Brazil. The members of this community are closely related descendants of the ex-slave Dionísio, and remained in relative geographical isolation for about a century. Sleep characteristics of 55 children (35M; 20F, 2 to 10 year olds, were evaluated in interviews with their mothers. The results showed that cosleeping, in the same bed with family members, was present in 80.0% of the 2-3 year olds; decreasing to 25.0% of the 8-10 year olds. Only 5.4% of the children slept alone in their own bedroom. Mean number of persons per bedroom was 2.8. Only 7.0% of the bedrooms had TV; 98.1% slept in silence. The data obtained support the need to weigh cultural factors influence on sleep.Hábitos de dormir da criança sofrem influências fisiológicas e culturais. O objetivo desta pesquisa foi verificar os hábitos de dormir da criança da comunidade negra rural e isolada de Furnas do Dionísio, no Mato Grosso do Sul. A comunidade é composta dos membros de uma mesma família, descendentes do ex-escravo Dionísio, mantida por cerca de um século em isolamento geográfico relativo. As características de 55 crianças (35 M; 20 F, de 2 a 10 anos de idade, foram pesquisadas através de entrevistas com as mães. Resultou que o hábito de dormir junto (cosleeping estava presente em 80,0 % aos 2-3 anos; reduzindo a 25,0 % aos 8-10 anos. Apenas 5,4% dormiam sozinhas em seu quarto. A média de pessoas por quarto foi 2,8. Apenas 7,0 % dos quartos tinham televisão; 98,1% eram silenciosos. Os resultados apóiam a necessidade de determinar a influência de fatores étnicos no sono.

  13. Kako močna so dejanska gesla študentov - zgodovinska analiza

    OpenAIRE

    Makari, Tadej

    2017-01-01

    V magistrskem delu opišemo zgodovino prve uporabe računalniških gesel, tipe gesel in njihove značilnosti. Predstavimo metode oblikovanja močnega gesla in načine varnega shranjevanja gesel ter osnovne tehnike napadov na gesla. S pomočjo programskega orodja Hashcat se lotimo praktičnega razbijanja študentskih gesel na podlagi tehnike napada z grobo silo in s slovarjem. Iz rezultatov razbijanja izdelamo končni seznam pridobljenih gesel, na podlagi katerega izvedemo osnovno analizo gesel, ki teme...

  14. Production and properties of artificial antimicrobial marble; Jushikei zinzo dairiseki no kokin kako

    Energy Technology Data Exchange (ETDEWEB)

    Amano, Ryozo; Miyamoto, Hiroyuki [INAX Corp., Aichi (Japan)

    1999-11-01

    There are many cases in which they are suitable for the growth of the microorganism on bathrooms and lavatories, kitchens, etc., which are the place where the artificial marble product is installed. Therefore, the generation of the fouling of the microorganism by the aberrant growth is also abounding. Then, it developed the antimicrobe artificial marble for the purpose of suppressing growth of bacteria in the surface of the product. Here, this paper describes the gist in doing antimicrobial treatment in the resin systems artificial marble product. (NEDO)

  15. Kako se nositi s ekonomskom depresijom: iskustvene i teorijske lekcije Velike depresije

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    Ognjen Radonjić

    2016-03-01

    Full Text Available Cilj ovog rada je da ukaže na moguće razloge zbog kojih ne samo da dužnička kriza u evrozoni ne prolazi, već se produbljuje. Mišljenja sam da iskustvo Velike depresije iz tridesetih godina prošlog veka može pomoći ekonomskim teoretičarima i zvaničnicima da sagledaju problem iz druge perspektive, pošto je očigledno da ekonomska ortodoksija i mere ekonomske politike koje se na njoj zasnivaju ne daju željene rezultate. Ruzveltov fiskalni aktivizam i Kejnzova revolucionarna teorija su dali odgovor na pitanje zašto je u periodu krize neophodna odlučna fiskalna reakcija ekonomskih vlasti i zašto slobodno tržište nije u stanju da samostalno izađe iz magle koja vremenom, u slučaju nečinjenja, postaje sve gušća.

  16. Development of lowdrag aerodynamically stable with indented processing; Indento kako wo hodokoshita seishin keburu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Hojo, T.; Yamazaki, S.; Okada, H.

    1998-10-29

    A wind-resistant design of cables for large cable-stayed bridges is required as a measure against rain-wind induced vibration. In such bridges, many cables are arranged in a short pitch, which causes a large drag force on the cables. Therefore, reduction of drag force on cables is essential for rationalizing bridge design, as well as restraint of vibration. This paper describes studies on a new cable having both a low drag co-efficient force and rain-vibration suppressing effects. Through many investigations using wind tunnel tests, an indented cable was developed as a countermeasure against rain-wind induced vibration, and finally it was applied to the Tatara Bridge which is the largest cable-stayed bridge in the world. (author)

  17. Avanços recentes do impacto da apneia obstrutiva do sono na hipertensão arterial sistêmica Avances recientes del impacto de la Apnea Obstructiva del Sueño en la Hipertensión Arterial Sistémica Recent advances of the impact of obstructive sleep apnea on systemic hypertension

    Directory of Open Access Journals (Sweden)

    Rodrigo P. Pedrosa

    2011-08-01

    Full Text Available A apneia obstrutiva do sono (AOS é uma condição clínica comum na população em geral, principalmente entre os pacientes portadores de doenças cardiovasculares. Mais do que um fenômeno local de obstrução das vias aéreas superiores, a AOS traz repercussões sistêmicas que podem incluir a hipóxia intermitente, a redução abrupta da pressão intratorácica e a ocorrência de microdespertares com fragmentação do sono. Nas últimas décadas, inúmeras evidências apontam de forma consistente a AOS como um importante fator envolvido na ocorrência de doenças cardiovasculares. Particularmente, a relação entre a AOS e a hipertensão arterial sistêmica (HAS é a que encontra um maior conjunto de evidências. Atualmente, encontram-se dados que consideram a AOS uma importante causa secundária de HAS. Mais do que isso, a AOS está independentemente associada a um pior controle pressórico, alteração do descenso noturno da pressão arterial e à presença de lesões de órgãos-alvo, tais como a hipertrofia do ventrículo esquerdo e a microalbuminúria. Estudos randomizados sugerem que o tratamento da AOS, especialmente com a pressão positiva contínua de vias aéreas superiores (CPAP, considerado o tratamento padrão para a AOS, promove redução significante da pressão arterial nas 24 horas, efeito esse mais significante no subgrupo de pacientes com HAS não controlada e nos pacientes com HAS resistente. A despeito de todas essas evidências, a AOS ainda continua sendo subdiagnosticada. O objetivo desta revisão é discutir os recentes avanços nos mecanismos fisiopatológicos, na apresentação clínica e no tratamento da AOS, e o benefício sobre a pressão arterial.La apnea obstructiva del sueño (AOS es una condición clínica común en la población en general, principalmente entre los pacientes portadores de enfermedades cardiovasculares. Más que un fenómeno local de obstrucción de las vías aéreas superiores, la AOS trae

  18. Impacto da umidificação aquecida com pressão positiva automática em vias aéreas na terapia do síndroma de apneia obstrutiva do sono Impact of heated humidification with automatic positive airway pressure in obstructive sleep apnea therapy

    Directory of Open Access Journals (Sweden)

    Sara Moreira da Silva Trindade Salgado

    2008-09-01

    Full Text Available OBJETIVO: Avaliar o impacto da umidificação aquecida introduzida no início da terapia com pressão positiva automática em vias aéreas (APAP, do inglês automatic positive airway pressure na adesão e efeitos secundários. MÉTODOS: Foram randomizados 39 doentes com síndroma de apneia obstrutiva do sono sem terapia prévia em dois grupos de tratamento com APAP: com umidificação aquecida (grupo APAPcom; e sem umidificação (grupo APAPsem. Os doentes foram avaliados 7 e 30 dias após a colocação de APAP. Os parâmetros analisados foram a adesão ao tratamento (número médio de horas/noite, efeitos secundários (secura nasal ou da boca, obstrução nasal e rinorreia, sonolência diurna (escore da escala de sonolência de Epworth e o conforto subjectivo (escala visual analógica. Foram ainda avaliados o índice de apneia-hipopneia (IAH residual, pressões e fugas médias registados nos ventiladores. RESULTADOS: Os dois grupos de doentes estudados eram semelhantes no que respeita à média etária (APAPcom: 57,4 ± 9,2; APAPsem: 56,5 ± 10,7 anos, IAH (APAPcom: 28,1 ± 14,0; APAPsem: 28,8 ± 20,5 eventos/hora de sono, Epworth basal (APAPcom: 11,2 ± 5,8; APAPsem: 11,9 ± 6,3 e sintomas nasais iniciais. A adesão foi semelhante nos dois grupos (APAPcom: 5,3 ± 2,4; APAPsem: 5,2 ± 2,3 horas/noite. Não se verificaram diferenças nos outros parâmetros avaliados. CONCLUSÕES: A introdução inicial da umidificação aquecida na terapia com APAP não demonstrou vantagem no que diz respeito à adesão e efeitos secundários.OBJECTIVE: To study the impact that heated humidification instituted in the beginning of automatic positive airway pressure (APAP therapy has on compliance with and the side effects of the treatment. METHODS: Thirty-nine treatment-naïve patients with obstructive sleep apnea were randomized into two groups to receive APAP using one of two modalities: with heated humidification (APAPwith group; and without heated

  19. Tatara steelmaking and its metallurgy; Tatara seitetsu to sono kinzokugaku

    Energy Technology Data Exchange (ETDEWEB)

    Kiyonaga, K. [Hitachi Metal Technox Ltd., Tokyo (Japan)

    1994-12-20

    A Japanese traditional steel making method is called `Tatara steel making.` Tatara steel making is a unique steel making method which was developed in Japan, and it is said that real Japanese swords can be produced only from Japanese steel and iron produced through Tatara steel making. Although the origin of Tatara steel making is still not clear, it has been considered that its progenitorial from appeared from the latter half of the middle part to the beginning of the latter part of the Tumulus period, i.e., before or after the sixth century. Thereafter, with many improvements thereof, the method had been progressed, and it is regarded that the current from of Tatara steel making was completed in the latter half of the seventeenth century. The modern Tatara steel making was developed in mountain areas in the Chugoku District, which region supplied most of the domestic iron demands until western style iron was introduced into Japan. There is a trace that iron rock was used for steel making at the initial stage of Tatara steel making, but thereafter the method took a shift to iron sand refining in most cases. This report describes the origin and summary of Tatara steel making. In particular, it describes the operating method, quality and furnace reactions of Tatara steel making from the metallurgical point of view. 26 refs., 3 figs., 6 tabs.

  20. Tubular bioreactor and its application; Tubular bioreactor to sono tekiyo

    Energy Technology Data Exchange (ETDEWEB)

    Endo, I.; Nagamune, T. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Yuki, K. [Nikka Whisky Distilling Co. Ltd. Tokyo (Japan); Inaba, H. [Sumitomo Heavy Industries, Ltd., Tokyo (Japan)

    1994-09-05

    The loop type tubular bioreactor (TBR) was developed where biocatalysts are trapped in the reactor by membrane module. A UF membrane or MF membrane and crossflow filtration were adopted for the membrane module, and the reactor loop was composed of four membrane modules. The reactor was operated at 2-4 m/s in membrane surface velocity and 300-400 kPa in filtration pressure. As the result of the high-density culture of lactic acid bacteria and yeast, a biomass concentration was more than 10 times that in batch culture, suggesting the remarkable enhancement of a production efficiency. As the result of the continuous fermentation of cider, the fast fermentation more than 60 times that in conventional ones was obtained together with the same quality as conventional ones. Such a fast fermentation was probably achieved by yeast suspended in the fermenter of TBR, by yeast hardly affected physico-chemically as compared with immobilized reactors, and by small effect of mass transfer on reaction systems. 4 refs., 6 figs.

  1. Avaliação da escala de Epworth em pacientes com a Síndrome da apnéia e hipopnéia obstrutiva do sono Evaluation of Epworth Sleepiness Scale in patients with obstructive sleep apnea-hypopnea syndrome

    Directory of Open Access Journals (Sweden)

    Letícia Boari

    2004-12-01

    Full Text Available A síndrome da apnéia e hipopnéia obstrutiva do sono (SAHOS é, atualmente, considerada um problema de saúde pública por causar aumento da morbi-mortalidade cardiovascular e acidentes de trânsito. A polissonografia assistida é o padrão-ouro para o diagnóstico e acompanhamento destes pacientes. No entanto, por ser onerosa, demorada e de acesso restrito, outros métodos tem sido desenvolvidos. A escala de sonolência de Epworth (ESE é uma avaliação subjetiva, porém, rápida, sem custos e simples de ser aplicada. OBJETIVO: Avaliar a correlação entre a pontuação da ESE e o índice de apnéia e hipopnéia (IAH da polissonografia de pacientes com SAHOS. FORMA DE ESTUDO: Clínico retrospectivo. MATERIAL E MÉTODO: Revisão de prontuário de 66 pacientes com queixa de roncopatia que foram submetidos a procedimento cirúrgico (uvulopalatofaringoplastia com ou sem abordagem nasal. Avaliaram-se a pontuação da ESE e o IAH da polissonografia pré e pós-operatórios. RESULTADOS: 78,7% pacientes com grau normal de IAH tiveram pontuação de ESE menor do que 10 e 65% pacientes com grau severo de IAH tiveram pontuação maior do que 10. Não houve resultados estatisticamente significantes para os grupos moderado e leve. CONCLUSÃO: A escala de Epworth pode distinguir os graus normais e severos sem, no entanto, determinar os graus moderado e leve. Assim, pode ser utilizada para acompanhamento de pacientes com SAHOS sem, no entanto, substituir a polissonografia uma vez que não consegue avaliar todos os graus de severidade.Today obstructive sleep apnea–hypopnea syndrome (OSAHS is a public health issue, since it increases cardiovascular morbidity-mortality rate and the risk of car crashes. Overnight polysomnography is the gold standard for diagnosis and follow-up of affected patients. However, because the test is expensive, time-consuming and of difficult access, others methods have been proposed. Although the Epworth Sleepiness Scale (ESS is

  2. Avaliação clínica e polissonográfica do aparelho BRD no tratamento da Síndrome da Apneia Obstrutiva do Sono Clinical and polysomnographic assessment of Obstructive Sleep Apnea Syndrome treatment with BRD appliance

    Directory of Open Access Journals (Sweden)

    Cibele Dal-Fabbro

    2010-02-01

    Full Text Available OBJETIVOS: este trabalho de pesquisa teve o intuito de realizar uma avaliação clínica e polissonográfica do efeito de um aparelho intraoral (AIO para tratamento da Síndrome da Apneia Obstrutiva do Sono (SAOS, desenvolvido e testado por duas universidades federais brasileiras. MÉTODOS: a amostra constou de 50 pacientes (idades entre 18 e 65 anos, sendo 33 homens e 17 mulheres com diagnóstico polissonográfico inicial de SAOS de grau leve e moderado. Todos os pacientes submeteram-se a uma nova avaliação polissonográfica de noite inteira (em uso do AIO aproximadamente 6 meses após a primeira avaliação. Baseado na diminuição dos eventos respiratórios obstrutivos, obtida com o uso do AIO, os pacientes foram então divididos em bons respondedores (redução de 50% ou mais no índice de apneia e hipopneia (IAH, permanecendo abaixo de 10 eventos/hora e maus respondedores (IAH permanecendo maior ou igual a 10 eventos/hora. RESULTADOS E CONCLUSÕES: em 54% da amostra o IAH diminuiu para menos de cinco eventos/hora com o uso do AIO; em 38% a redução do IAH foi maior do que 50%, mas permaneceu acima de cinco eventos/hora; e em 6% da amostra o IAH reduziu menos que 50%. Os bons respondedores corresponderam a 86% da amostra estudada, enquanto os maus respondedores a 14%. Houve melhora significativa na escala de sonolência, no IAH, nos microdespertares e na saturação mínima de oxihemoglobina com a terapia utilizada. O Índice de Massa Corpórea elevado parece interferir desfavoravelmente no desempenho do aparelho em estudo.OBJECTIVES: The current investigation aimed to carry out a clinical and polysomnographic assessment of treatment of Obstructive Sleep Apnea Syndrome (OSAS with an oral appliance (OA developed and tested by two Brazilian federal universities. METHODOLOGY: The sample was composed of 50 patients (aged between 18 and 65 years, 33 men and 17 women with initial polysomnographic diagnosis of light to moderate OSAS. All

  3. Comparação dos instrumentos de avaliação do sono, cognição e função no acidente vascular encefálico com a classificação internacional de funcionalidade, incapacidade e saúde (CIF Comparison of instruments for sleep, cognition and function evaluation in stroke patients according to the international classification of functioning, disability and health (ICF

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    Tania F. Campos

    2012-02-01

    Full Text Available CONTEXTUALIZAÇÃO: A Classificação Internacional de Funcionalidade, Incapacidade e Saúde (CIF precisa ser empregada amplamente na pesquisa e prática clínica, mas há escassez de trabalhos que vinculem sua utilização a instrumentos de avaliação utilizados na fisioterapia. OBJETIVO: Comparar os instrumentos de avaliação do sono, cognição e função com a CIF em pacientes com AVE. MÉTODOS: Participaram 12 pacientes (seis mulheres, com idade média de 55,4 (±6,2 anos e tempo de recuperação de sete a 36 meses. Os pacientes foram avaliados pelo Índice de Qualidade do Sono de Pittsburgh (IQSP, Miniexame do Estado Mental (MEEM e Índice de Barthel (IB. A comparação da frequência das categorias registradas da CIF com os itens dos instrumentos foi realizada por meio do teste de Fisher e teste do qui-quadrado. A concordância das categorias registradas por dois avaliadores foi analisada pelo Índice de Kappa. RESULTADOS: Na análise do IQSP, encontrou-se um escore médio de 5,0 (±3,0; para o MEEM, de 22,5 (±3,4 e para o IB, de 74,6 (±17,2. Na CIF, as alterações identificadas nos instrumentos anteriores foram registradas em 46 categorias, sendo a maior parte no componente "Funções do Corpo", seguido de "Atividades e Participação". Encontrou-se uma concordância interavaliador de 0,87 para o IQSP (substancial, de 0,44 para o MEEM (moderada e de 0,39 para o IB (justa. CONCLUSÕES: Os resultados indicam que as concordâncias de cada instrumento foram muito diferentes, sugerindo a necessidade de maior utilização desses instrumentos na prática fisioterapêutica, a fim de otimizar a formulação e padronização do diagnóstico fisioterapêutico.BACKGROUND: The International Classification of Functioning, Disability and Health (ICF should be widely used in research and clinical practice, but there are few studies that do so with the evaluation instruments used in physical therapy. OBJECTIVE: To compare instruments that evaluate

  4. Validação da escala de ritmo circadiano - ciclo vigília/sono para adolescentes Validación de la escala de ritmo circadiano - ciclo vigilia / sueño para adolescentes Validity of a circadian rhythm scale - sleep/wake cycle for adolescents

    Directory of Open Access Journals (Sweden)

    Márcia Finimundi

    2012-09-01

    Full Text Available OBJETIVO: Validar a Escala Puberty and Phase Preference, de Carskadon, Vieira e Acebo (1993, traduzida para a língua portuguesa, que investiga os horários de acordar e dormir de adolescentes e seus sentimentos com relação a estes, denominando-os matutinos ou vespertinos. MÉTODOS: Participaram do estudo 144 alunos do ensino fundamental, 86 meninos e 58 meninas, com média de idade de 13,2±1,6 anos. A validade de constructo foi por critério preditivo. A escala de ritmo circadiano foi aplicada na sala de aula; após um mês de tal aplicação, os alunos foram solicitados a responder por sete dias consecutivos outro questionário. Este perguntava, referente ao dia anterior, o horário em que foi dormir e, referente ao próprio dia, o momento em que despertou. Para avaliar as evidências de validade de critério foram comparadas as médias por análise de variância one-way e teste post-hoc da diferença mínima significativa. RESULTADOS: As propriedades psicométricas da escala mostraram-se satisfatórias. A análise de consistência interna pelo alfa de Cronbach foi de 0,791. CONCLUSÕES: Os resultados indicaram fidedignidade e validade nas preferências de alocação do ciclo vigília e sono. Os índices foram significativos e direcionados aos horários esperados, evidenciando a validade da escala.OBJETIVO: Validar la Escala Puberty and Phase Preference, de Carskadon, Vieira e Acebo (1993, traducida al portugués, que investiga los horarios de despertar y dormir de adolescentes y sus sentimientos respecto a esos horarios, nombrándolos matutinos o vespertinos. MÉTODOS: Participaron del estudio 144 alumnos de la primaria, 86 muchachos y 58 muchachas, con promedio de edad de 13,2±1,6 años. La validez de constructo fue por criterio predictivo. La escala de ritmo circadiano fue aplicada en el aula; después de un mes de esa aplicación, se solicitó que los alumnos contestaran, durante siete días consecutivos, a otro cuestionario.

  5. FY 1991 Research and development project for large-scale industrial technologies. Report on results of R and D of superhigh technological machining systems; 1991 nendo chosentan kako system no kenkyu kaihatsu seika hokokusho. Chosentan kako system no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    Described herein are the FY 1991 results of the R and D project aimed at establishment of superprecision machining technologies for developing machining technologies and nano-technologies aided by excited beams. The researches on the superprecision machining technologies involve design and development, on a trial basis, of the totally static pressure type positioning device, for which automatically controlling drawing is adopted to improve its rigidity. The researches on the surface modification technologies aided by ion beams involve scanning the ion beams onto the metallic plate to be provided around the glass substrate. The results indicate that the secondary electrons generated can be used to control charge-up. In addition, part of a 30cm square glass substrate is modified by implantation of the spot type ions of high current density, and the modified portion is used to produce a thin-film silicon transistor. The researches on superhigh-technological machining standard measurement involve improvement of precision of the system aided by a dye laser, which attains a precision of 0 to 30nm in a 0.1m measurement range. (NEDO)

  6. Introductory asphalt technology; Nyumon asphalt gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Muroga, G. [Mitsubishi Oil Co. Ltd., Tokyo (Japan)

    1994-12-28

    The type and applications, manufacturing method, characteristics, road pavement etc. of asphalt were introduced. Among the petroleum asphalts, straight asphalt is used for road pavement,industry, and combustion, while blown asphalt is mainly used for the waterproofness of a building. Also, the demand for modified asphalt where rubber or thermoplastic elastomer was mixed is increasing. Straight asphalt is obtained by allowing atmospheric distillation tower bottom oil to be subjected to reduced pressure distillation and drawing reduced pressure gas oil and lubrication oil cut. Blown asphalt is produced by the oxidation dehydrogeneration and condensation polymerization reaction of soft straight asphalt. Rheology characteristics of asphalt are expressed by stiffness, relaxation elastic modulus, complex elastic modulus, etc. Also, asphalt has high electrical dielectric properties. Asphalt pavement has functions for dispersing traffic load and then transferring it to a lower layer, for resisting wear and cracking, and for preventing penetration of rainwater. 30 refs., 5 figs., 4 tabs.

  7. Kako z didaktično igro otroku približati temo o smrti in žalovanju

    OpenAIRE

    Stanković Petrović, Sanja

    2017-01-01

    V diplomski nalogi predstavljamo smrt in žalovanje kot pomembno temo, ki je del vzgoje in izobraževanja otrok v predšolskem obdobju. V teoretičnem delu utemeljujemo, da je smrt del življenja ter da je potrebno otroku predstaviti jasne in razumljive informacije vezane na to temo, ob tem pa upoštevati otrokovo razvojno stopnjo in individualne značilnosti. Prav tako je pomembno, da odrasli dobro poznamo in razumemo procese žalovanja, tako pri odraslih kot pri otrocih, saj se proces žalovanja lah...

  8. Consideration on characteristics of faults distributed at around Fujigawa river mouth; Fujigawa kako shuhen ni okeru danso kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Iwashita, A; Misawa, Y [Tokai University, Tokyo (Japan)

    1997-10-22

    From the sonic prospecting on the ground, it was confirmed that faults distributed in the inner part of Suruga Bay extend near the Fujigawa river mouth. While, faults in the sea bottom were found by the sonic prospecting using a single air-gun. However, continuity of faults running from the land to the sea has not been reported. This paper describes the continuity of Fujigawa fault system running from the land to the sea around Fujigawa river mouth along the subduction zone of Philippine Sea Plate using single air-gun seismic reflection records. Locations of the faults can be expressed as fracture information of linearment obtained from the satellite remote sensing images, which agreed well with those found by the Active Fault Research Association. As a result of the image processing, they agreed distinctly with the topography of Fujigawa fault system. Thus, much more accurate analysis can be performed by comparing the regional information by the remote sensing with the sonic seismic reflection profiles. 3 refs., 2 figs.

  9. Tokai carbon: A processing sales position is put on Europe; Tokai kabon: oshu ni kako hanbai kyoten

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-30

    It went through the same company with increase in England establishing a business generalization company in Europe, and Tokai carbon purchased the processing sales company graphite-technology (GT Company, England and Birmingham City) of fine carbon. The thing that it aimed at the expansion of the fine carbon business in Europe. A system from the middle product to the final product is prepared, and the reclamation of the new field is included, and it starts active business development by the bribery of the GT Company. Moreover, the head office is set up in London, and Tokai carbon Europe where it was established newly is capital 3400000 pounds. (translated by NEDO)

  10. Unit operation in food manufacturing and processing. Shokuhin seizo/kako ni okeru tan'i sosa

    Energy Technology Data Exchange (ETDEWEB)

    Matsuno, R. (Kyoto Univ., Kyoto (Japan). Faculty of Aguriculture)

    1993-09-05

    Processed foods must be produced in mass, cheap and safe and should be suitable for the delicate taste of human being. Food tastes are effected by an outlook on human attitude, and the surrounding environment. And these factors are reflected to unit operation in food manufacturing and processing and it is clarified that there are many technical difficulties. The characteristics of unit operation for food manufacturing and processing are that the food materials are a multicomponent system, moreover, a very small amount of aroma components, taste components, vitamin, physiologically activation materials and so on are more important than the main components, and also inapplicable of the model centering to the most quantitative component. The purpose of unit operation in food manufacturing and processing is to produce the properties of matter matching to human sense, and therefore there are many problems left unsolved. The development of analytical technology also has an influence on manufacturing and processing technology. Consequently, food manufacturing and processing technology must be based on general science. It is necessary to develop unit operation with an understanding of mutual effect between food and human body.

  11. DUE VIE ALL’ABBONDANZA? «Le regole seguite dalla Natura sono adeguate ad essa. Quelle seguite dall’uomo sono adeguate per l’uomo»

    Directory of Open Access Journals (Sweden)

    Finzi

    2014-12-01

    Full Text Available Produce more or want less? The question, posed by anthropology, is here presented starting from the ancient myth of the golden age and its end determined by Jupiter curis acuens mortalia corda. At this point in history born the property – «the only case where the origin of natural rights is not altogether plain» (A. Smith – leading men to «la possession des choses – says the Encyclopédie – dont ils ont un besoin naturel; mais elle leur donne en même tems la notion d’une infinité de besoins chimériques qui les pressent mille fois plus vivement que des besoins réels» . The way is therefore to produce more and more for growing needs. The knowledge of the «savages» of America strengthens this tendency, whose main «instrument» is the division of labor. Gradually, however, there is a clash or a contradiction between «the rules» which nature «follows [...] fit for her» and those which man «follows for him».

  12. Suspeita de Apneia Obstrutiva do Sono definida pelo Questionário de Berlim prediz eventos em pacientes com Síndrome Coronariana Aguda Sospecha de apnea obstructiva del sueño definida por el cuestionario de Berlín predice eventos en pacientes con síndrome coronario agudo Suspicion of Obstructive Sleep Apnea by Berlin Questionnaire predicts events in patients with Acute Coronary Syndrome

    Directory of Open Access Journals (Sweden)

    Eryca Vanessa S. de Jesus

    2010-09-01

    Full Text Available FUNDAMENTO: De um ponto de vista mecanístico, a apneia obstrutiva do sono (SAOS pode causar distúrbios extras à homeostase cardiovascular na presença de síndrome coronariana aguda (SCA. OBJETIVO: Investigar se um diagnóstico clínico padronizado de SAOS, em pacientes com SCA, prediz o risco de eventos cardiovasculares durante hospitalização. MÉTODOS: Em um estudo de coorte prospectivo, um grupo de 200 pacientes com diagnóstico de SCA estabelecido entre Setembro de 2005 e Novembro de 2007, foram estratificados pelo Questionário de Berlim (QB para o risco de SAOS (alto ou baixo risco. Foi testado se o subgrupo de alto risco para SAOS apresenta maior tendência à eventos cardiovasculares. O endpoint primário avaliado foi um desfecho composto de morte cardiovascular, eventos cardíacos isquêmicos recorrentes, edema pulmonar agudo e acidente vascular cerebral durante a hospitalização. RESULTADOS: Noventa e quatro (47% dos pacientes identificados pelo QB apresentavam suspeita de SAOS. Alto risco para SAOS estava associado com uma mortalidade mais elevada, embora sem diferença estatística (4,25% vs 0,94%; p=0,189, mas com uma estatisticamente significante maior incidência de desfecho composto de eventos cardiovasculares (18,08% vs 6,6%; p=0,016. No modelo de regressão logística, os preditores multivariados de desfecho composto de eventos cardiovasculares foram idade (OR = 1,048; IC95%: 1,008 a 1,090; p=0,019, fração de ejeção do VE (OR = 0,954; IC95%: 0,920 a 0,989; p=0,010, e risco mais elevado de SAOS (OR = 3,657; IC95%: 1,216 a 10,996; p=0,021. CONCLUSÃO: O uso de um questionário simples e validado (QB para identificar pacientes com risco mais elevado de SAOS pode ajudar a prever o desfecho cardiovascular durante a hospitalização. Além disso, nossos dados sugerem que SAOS é muito comum em pacientes com SCA.FUNDAMENTO: Desde un punto de vista mecanístico, la apnea obstructiva del sueño (SAOS puede ocasionar disturbios

  13. Reducing the influence of STI on SONOS memory through optimizing added boron implantation technology

    International Nuclear Information System (INIS)

    Xu Yue; Yan Feng; Li Zhiguo; Yang Fan; Wang Yonggang; Chang Jianguang

    2010-01-01

    The influence of shallow trench isolation (STI) on a 90 nm polysilicon-oxide-nitride-oxide-silicon structure non-volatile memory has been studied based on experiments. It has been found that the performance of edge memory cells adjacent to STI deteriorates remarkably. The compressive stress and boron segregation induced by STI are thought to be the main causes of this problem. In order to mitigate the STI impact, an added boron implantation in the STI region is developed as a new solution. Four kinds of boron implantation experiments have been implemented to evaluate the impact of STI on edge cells, respectively. The experimental results show that the performance of edge cells can be greatly improved through optimizing added boron implantation technology. (semiconductor devices)

  14. Autoclaved lightweight aerated concrete. ; Manufacture/performance/application. Keiryo kiho concrete. ; Sono seiho kino yoto

    Energy Technology Data Exchange (ETDEWEB)

    Isome, Y. (Asahi Chemical Industry Co. Ltd., Tokyo (Japan))

    1993-10-20

    This paper reviews the manufacturing process, performance, and application of autoclaved lightweight aerated concrete (ALC). ALC is produced by a two-step process composed of molding and autoclaving, using quartz, lime, portland cement, and small quantities of aluminum as raw materials. In the molding step, aluminum reacts with alkali to generate hydrogen gas, thus forming air pores in the slurry. On the other hand, calcium silicate hydrates are produced by the reaction of lime and portland cement with water, resulting in formation of voids in the intergranular spaces vacated by the reacting water. In the autoclaving step, tobermorite (crystalline calcium silicate hydrates) is formed by the reaction of quartz and calcium silicate hydrates under high temperature and high pressure steam, and the intergranular voids are reduced to micropores in size as a result of the hydrothermal reaction. The air-pore and micropore structure adds unique physical properties to the ALC, such as fire resistance, heat insulation, lightness and strength. ALC is widely used as a useful material for homes and multistory buildings. 10 refs., 10 figs., 1 tab.

  15. Genetic manipulation of woody plants and its applications. Rinboku no idenshi sosa to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Ebinuma, H. (Jujo Paper Co. Ltd., Tokyo (Japan))

    1992-06-01

    The advance of plant biotechnology has been further accelerated by the development of the new epoch-making technique typified by the DNA amplification using the PCR (polymerase chain reaction) method. In the application of plant biotechnology to trees, the introduction of useful genes into genetically elite trees and short-period mass propagation of recombinants by micropropagation are considered to be rational strategies. In the utilization of recombinants, non-edible industrial product materials such as trees are considered to pass the safety standards more easily and also to be profitable. This paper discusses the possibilities of tree recombinants, the imparting of disease-resistance to elite trees and the biosynthetic control of lignin. The paper introduces a topic that the imparting of disease-resistance to elite trees is in a stage of transference to experiments of recombinants in a closed-system greenhouse by the construction of the crown gall resistant gene and the establishment of the gene introduction system into crossed populus sieboldii miquel. 19 refs., 4 figs.

  16. Production, property, and application of bacterial cellulose; Bakuteriaserurosu no seisan, butsusei no tokucho to sono riyo

    Energy Technology Data Exchange (ETDEWEB)

    Yamanaka, S.; Watanabe, K. [Ajinomoto Co. Inc., Tokyo (Japan). Central Research Lab.; Iguchi, M. [Agency of Industrial Science and Technology, Tokyo (Japan)] Nishi, Y. [Sony Corp., Tokyo (Japan)

    1998-09-01

    Cellulose produced by bacterial is called bacterial cellulose (BC). The morphology and physical properties of BC are found to be quite unique in comparison with those of higher class plants. The properties are elucidated and a study is made to utilize the properties. The outline of this study is introduced in the sequence of BC production, BC morphology, elucidation of the physical property, and study on the application. BC consists of ultrafine fibers, and the widths of fibers are in the range from (1/199) to (1/1,000) of cotton fibers, forming distinctive network structure. It is assumed that the high Young`s modulus is based on the structural features of BC. Researches have been made on various applications to such fields as audio, paper, food, and compounds where the features of cellulose are utilized effectively. The morphology of cellulose can be varied by adding drugs which can change a part of the protein. It is expected that cellulose structure can be controlled in the future by the application of this technology. 18 refs., 6 figs., 2 tabs.

  17. Merging microfluidics and sonochemistry: towards greener and more efficient micro-sono-reactors.

    Science.gov (United States)

    Fernandez Rivas, David; Cintas, Pedro; Gardeniers, Han J G E

    2012-11-18

    Microfluidics enable the manipulation of chemical reactions using very small amounts of fluid, in channels with dimensions of tens to hundreds of micrometers; so-called microstructured devices, from which the iconic image of chips emerges. The immediate attraction of microfluidics lies in its greenness: use of small quantities of reagents and solvents, and hence less waste, a precise control of reaction conditions, integration of functionality for process intensification, safer and often faster protocols, reliable scale-up, and possibility of performing multiphase reactions. Among the limitations found in microfluidics the facile formation of precipitating products should be highlighted, and in this context, the search for efficient mass and energy transfers is a must. Such limitations have been partially overcome with the aid of ultrasound in conventional flow systems, and can now be successfully used in microreactors, which provide new capabilities. Novel applications and a better understanding of the physical and chemical aspects of sonochemistry can certainly be achieved by combining microfluidics and ultrasound. We will review this nascent area of research, paying attention to the latest developments and showing future directions, which benefit both from the existing microfluidic technology and sonochemistry itself.

  18. Merging microfluidics and sonochemistry: towards greener and more efficient micro-sono-reactors

    NARCIS (Netherlands)

    Fernandez Rivas, David; Cintas, P.; Gardeniers, Johannes G.E.

    2012-01-01

    Microfluidics enable the manipulation of chemical reactions using very small amounts of fluid, in channels with dimensions of tens to hundreds of micrometers; so-called microstructured devices, from which the iconic image of chips emerges. The immediate attraction of microfluidics lies in its

  19. Fractional derivatives. An introduction; Derivate frazionarie. Che cosa sono, a cosa servono

    Energy Technology Data Exchange (ETDEWEB)

    Dattoli, G. [ENEA, Div. Fisica Applicata, Centro Ricerche Frascati, Rome (Italy)

    2001-07-01

    In this item is presented a brief survey of fractional calculus and of the relevant applications. In the work are discussed different points of view of the operation of fractional derivative and present a unifying definition. The role played by fractional derivatives and integrals within the framework of integral transform is analyzed. [Italian] In questo articolo si traccia un profilo del cosidetto calcolo frazionario e delle relative applicazioni a problemi di matematica pura ed applicata. Si discutono varie definizioni dell'operazione di derivata frazionaria, non tutte coincidenti fra loro, e si mostra come sia possibile proporre una definizione univoca che inglobi tutte le altre. Si analizza infine il ruolo giocato dalle derivate e dagli integrali frazionari e, piu' in generale, quello degli operatori differenziali ad esponente frazionario, nell'ambito della teoria delle rappresentazioni integrali.

  20. "Etica ed Estetica sono tutt’uno" Riflessioni su TLP 6.421

    Directory of Open Access Journals (Sweden)

    Gabriele Tomasi

    2011-01-01

    Full Text Available Per il primo Wittgenstein etica ed estetica erano tutt’uno. Scopo del saggio è fornire un’interpretazione di questa concezione. Esaminando il modo in cui è proposta nel Tractatus e considerando alcune annotazioni dei Quaderni 1914-1916 si evidenzia che l’unità di etica ed estetica è in un modo di vedere il mondo per cui esso non appare come fonte di limitazione. L’etica è un’estensione al mondo - alla vita - della capacità di conferire significato che nell’arte si realizza nei riguardi di oggetti particolari. Affermando l’unità di etica ed estetica Wittgenstein attira l’attenzione sul fatto che la radice dell’etica è in un certo modo di vedere le cose, in un atteggiamento verso la vita. Si tratta della prospettiva di un valore non connesso a come il mondo è e che è evocato dalla meraviglia per l’esistenza del mondo.

  1. Kyoto protocol and related issues; Chikyu ondanka boshi Kyoto kaigi (COP3) to sono kadai

    Energy Technology Data Exchange (ETDEWEB)

    Ninomiya, Y. [Global Industrial Social Progress Research Institute, Tokyo (Japan)

    1997-09-30

    The Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change (COP3) will be held in Kyoto in December 1997. Described herein are the current status and issues of the convention. USA and Japan, which hold important keys to set up the abatement target, have issued no proposals concretely at the current AGBM (Ad-hoc Group Berlin Mandate) 7, and the conference for the concrete targets will be decided in the next AGBM 8 to be held in October. The final target will be set by the ministerial segment of COP3, because the negotiations for the treaty are political in nature. USA proposes reduction at a uniform, realistic rate, and Japan proposes reduction at a uniform rate or setting up the emission target per capita, each being different from reduction at a much higher uniform rate proposed by EU. Within EU, however, 10% out of 15% reduction rate it proposes is agreed by the member countries, and the remaining rate of % may not be agreed. It is necessary for the advanced parties to set up realistic and legally binding solutions, including ratification by USA, which can persuade the developing countries. tab.1

  2. Fire in Kuwaiti oil and its influence. Kuwait yuden kasai to sono eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Mizoguchi, T. (The Institute of Public Health, Tokyo (Japan))

    1993-01-10

    Fire which was brought about by the Gulf War in Kuwaiti oil fields caused artificial air pollution of the largest scale without precedent. In March, 1991 immediately after the War had come to an end, investigation was started by various organizations of different countries. Japan conducted her investigation from April to May, 1991 on. The present report gave the full particulars of air pollution investigation result together with the result of further investigation conducted on site in Kuwait in December, 1991 after the fire had been put out. It was reported that totally 500 to 850 oil wells were burned up in seven oil fields with a crude oil burning rate of 1 to 6 million barrels per day at its peak. However at most spots in Kuwait, the air pollution during the burning was unexpectedly much less than its environmental standard value though high content was locally detected of floating particulate substances, SO2, etc. Additionally with circumstances of traffic and industrial destructions, the measured data after the fire had been put out gave lower content of SO2 and NO2 than that in the non-polluted regions in Japan. 4 refs., 2 figs., 8 tabs.

  3. Molecular machines in living cells. Seibutsu no bunshi kikai to sono system

    Energy Technology Data Exchange (ETDEWEB)

    Osawa, F. (Aichi Inst. of Tech., Nagoya (Japan))

    1992-12-20

    At first, flagellar motors of bacteria are reviewed as a typical example of molecular machines in living cells. A rotational motor is embedded in the cell membrane at the root of the flagellum. The driving power of the rotation is the flow of hydrogen ion from the inside to the outside of the cell. In a normal state of a bacterium, potential difference of about 0.2 V is produced by the ion pump existing in the cell membrane. A molecular motor of sliding motion of muscle attracts the attention on the relation of the input and output of the molecular motor. The mechanism of the smooth motion without fluctuation in the fluctuated environment and the fluctuated input is unknown. Next, the motion of Paramecium is discussed as an example of a system composed of a number of molecular machines. Paramecium moves to a place of a suitable temperature when placed in a water tank with temperature gradient, however, it does not stop the motion at the place of the suitable temperature and increases a probability to change the direction when leaving, that is it takes a method of indirect probabilistic control. 12 refs., 8 figs.

  4. Energy transmission using microwaves and its possibility. Maikuroha ni yoru energy yuso to sono kanosei

    Energy Technology Data Exchange (ETDEWEB)

    Matsumoto, H.; Shinohara, N. (Kyoto University, Kyoto (Japan))

    1993-09-01

    Transmitting of electric energy in the form of electromagnetic waves is a century-old idea, which has reached its final step of realization at last. This paper describes a review and future prospects on electric power transmitting technologies using microwaves (a wavelength of 12 cm is thought as the most promising candidate). Electric power was transmitted successfully to a flying helicopter in the U.S.A. in 1964. Transmission of 30-kW power was performed in 1975 to a power receiving rectenna (an antenna with microwave receiving rectification circuit) placed 1.6 tm away using a parabola as a transmitting antenna. These studies were carried over to the investigative studies on space power stations (SPS). This is a conception to install a static satellite equipped with a huge solar cell array in the sky of about 36,000 km high to generate power, convert the power to microwaves, and transmit the power of ten million kilowatt class to the ground. A number of results of advanced experiments have been obtained in Japan using rockets or aircraft. 26 refs., 5 figs.

  5. Aircraft and ancillary materials. 2. ; Engine materials. Kokuki to sono shuhen zairyo. 2. ; Engine zairyo

    Energy Technology Data Exchange (ETDEWEB)

    1993-04-05

    This paper summarizes materials for aircraft engines. Jet engines are the mainstream today, which are classified according to their operation process into a turbo jet engine, a turbo prop engine, a turbo shaft engine, and a turbo fan engine. Japan has produced 1543 engines in the past decade, almost all of which are supplied to the Defense Agency. Jet engines use mainly Ni-group heat-resistant alloys, titanium alloys and steels. Improvement of engine efficiency has caused turbine inlet temperatures to rise to 1400[degree]C to 1500[degree]C that give rise to grain boundary cracking. To prevent this, discussions are in progress on monocrystal blades replacing the conventional polycrystal precision casts. Intermetallic compounds including Al/Ti are expected especially of use as jet engine constructing materials from their high melting point and formability. Discussions are preceding on ceramics as to coating them intended of improving heat resistance. Composite materials have a problem of insufficient mechanical strength remaining unsolved. 8 figs., 5 tabs.

  6. Learning automaton newtork and its dynamics. Gakushu automaton network to sono dynamics

    Energy Technology Data Exchange (ETDEWEB)

    Quan, F [Hiroshima-Denki Institute of Technology, Hiroshima (Jpaan); Unno, F; Hirata, H [Chiba Univ., Chiba (Japan)

    1991-10-20

    In order to construct a distributed processing system having learning automata as autonomous elements, a reinforcement learning network of the automaton is proposed and it{prime}s dynamics is investigated. In this paper, it is attempted to add another level of meaning to computational cooperativity by using a reinforcement learning network with generalized leaning automata. The collection of learning automata in the team situation acts as self-interested agents that work toward improving their performance with respect to their individual preference ordering. In the global state space of the network, the case of partially synchronous stochastic process is considered. In this case, the existence of mean field is shown and a reinforcement learning algorithm which can make the dynamics on the average reinforcement trajectory is presented. This algorithm is shown to have a high convergence speed as a result of a simple experiment. 14 refs., 9 figs.

  7. FEM simulation of a sono-reactor accounting for vibrations of the boundaries

    Czech Academy of Sciences Publication Activity Database

    Louisnard, O.; González-Garcia, J.; Tudela, I.; Klíma, Jiří; Sáez, V.; Vargas-Hernandez, Y.

    2009-01-01

    Roč. 16, č. 2 (2009), s. 250-259 ISSN 1350-4177 R&D Projects: GA MŠk 1P05OC074 Institutional research plan: CEZ:AV0Z40400503 Keywords : finite elements * ultrasound * standing waves Subject RIV: CF - Physical ; Theoretical Chemistry Impact factor: 2.993, year: 2009

  8. Sono-chemical synthesis of cellulose nanocrystals from wood sawdust using Acid hydrolysis.

    Science.gov (United States)

    Shaheen, Th I; Emam, Hossam E

    2018-02-01

    Cellulose nanocrystal (CNC) is a unique material obtained from naturally occurring cellulose fibers. Owing to their mechanical, optical, chemical, and rheological properties, CNC gained significant interest. Herein, we investigate the potential of commercially non-recyclable wood waste, in particular, sawdust as a new resource for CNC. Isolation of CNC from sawdust was conducted as per acid hydrolysis which induced by ultrasonication technique. Thus, sawdust after being alkali delignified prior sodium chlorite bleaching, was subjected to sulfuric acid with concentration of 65% (w/w) at 60 ° C for 60min. After complete reaction, CNC were collected by centrifugation followed by dialyzing against water and finally dried via using lyophilization technique. The CNC yield attained values of 15% from purified sawdust. Acid hydrolysis mechanism exactly referred that, the amorphous regions along with thinner as well as shorter crystallites spreaded throughout the cellulose structure are digested by the acid leaving CNC suspension. The latter was freeze-dried to produce CNC powder. A thorough investigation pertaining to nanostructural characteristics of CNC was performed. These characteristics were monitored using TEM, SEM, AFM, XRD and FTIR spectra for following the changes in functionality. Based on the results obtained, the combination of sonication and chemical treatment was great effective in extraction of CNC with the average dimensions (diameter×length) of 35.2±7.4nm×238.7±81.2nm as confirmed from TEM. Whilst, the XRD study confirmed the crystal structure of CNC is obeyed cellulose type I with crystallinity index ∼90%. Cellulose nanocrystals are nominated as the best candidate within the range studied in the area of reinforcement by virtue of their salient textural features. Copyright © 2017 Elsevier B.V. All rights reserved.

  9. Half century of wind power generation memoir. Part 1; Furyoku hatsuden hanseiki sono omoide. 1

    Energy Technology Data Exchange (ETDEWEB)

    Nakata, H.

    1995-12-01

    This article may be deemed an autobiography of an individual on his development of wind power generation devices. The author began to be interested in electricity while he was a pupil of primary school and during his time of middle school student, when he walked against the strong wind on an embankment, he got an idea to utilize the wind power and succeeded to generate electricity with his handmade wind power generator using a bicycle generator. Afterwards he kept interested in devices utilizing the wind power, in 1973, energy saving was widely promoted due to the oil crises, and taking that opportunity, he established single-handedly a laboratory for development of utilization of the breeze power. Since his retirement from teaching profession in the spring of 1980, he has coped with earnestly the development of wind power generators. He acquired and installed various machine tools for metal works for generators and various machines for wood works for making propellers. In this article, wind power generators using bicycle generators (direct connection type and speed increasing type), small D.C. motors (motors for driving tape recorder, motors for automobile radiator and windshield wiper, etc.) and automobile generators (D.C. generators and alternators) are explained. 11 figs.

  10. Environmental pollution by dioxin and its biodegradation; Dioxin ni yoru kankyo osen to sono biseibutsu bunkai

    Energy Technology Data Exchange (ETDEWEB)

    Nojiri, H.; Yamane, H.; Omori, T. [Tokyo Univ. (Japan)

    1998-10-20

    Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and coplanar polychlorinated biphenyls (Co-PCBs) exhibit similar chemical and biological properties. Because of their highly toxic activity, the pollution with these compounds, which are called dioxin-related compounds, is one of the most serious environmental problems. In this review, we described the analytical methods of dioxin-related compounds in environmental samples, especially in the exhaust gas from the incineration site of municipal solid waste. In addition, we described the present situation of environmental pollution by dioxin-related compounds, including pollution levels in environmental, human, and food samples, daily intakes, and risk assessment. On the other hand, a number of microorganisms have been reported which are able to degrade dioxin-related compounds including PCDDs and PCDFs. These microorganisms are classified into two groups, lignin-degrading white rot fungi and the dioxin-degrading bacteria. We also described the degradation pathways of dioxin-related compounds in these microorganisms, and their degradative enzymes. 47 refs., 5 figs., 4 tabs.

  11. Environmental impact assessment caused by global warming. Chikyu ondanka no eikyoryo hyoka to sono taisaku

    Energy Technology Data Exchange (ETDEWEB)

    Oshima, K [Geological Survey of Japan, Tokyo (Japan)

    1991-09-01

    This paper describes the considerations on the influence of the global warming on the environment, and the discussions on the measures against the climatic changes. With respect to the environmental effects by the global warming, the considerations were given based on the studies on the effects of mainly the Quaternary climatic changes on the surface sea water temperatures, sea level and animal flocks. If the magnitude of the climatic changes anticipated to occur during the 21st century is lower than that have taken place in the past 10,000 years during which the agricultural production has developed to a full-scale, there would be no fear of drastically changing the ecology on earth. If the estimation of future climatic and environmental changes becomes possible, then four basic positions could be selected for establishing the contermeasure plans. That is, the first is the measures to correspond to birth-rebirth transmigration; the second is the measures to carbon dioxide disposition upon concluding that the cause for the global warming is the atmospheric increase of carbon dioxide concentration, measures for conservation and international cooperation; the third is to deal with the warming environments; and the fourth is the means to reconstruct the earth. While a number of countermeasures may be prepared, Which of them should be selected will be decided by the amount of effects. 15 refs., 6 figs., 1 tab.

  12. Semiconductor relay and its manufacture method. Handotai relay oyobi sono seizo hoho

    Energy Technology Data Exchange (ETDEWEB)

    Nakamura, M

    1993-06-01

    The invention relates to a semiconductor relay in which a light emitting diode and a photovoltaic element are arranged in the opposite positions and connected with a light connection and aims to present a light transmission path to transmit input signals to the light emitting diode to the side of the photovoltaic element with a negligible light loss effectively. The invention presents a semiconductor relay, in which a light emitting diode loaded on the first lead frame and the light receiving part of the photovoltaic element to drive a MOSFET element loaded on the second lead frame and acting as a switch element are connected through an insulator tube with an opaque outer wall, and the interior of the insulator tube is filled with a transparent insulating filler, so that the invention affords a light transmission path without light leakage from the interior of the opaque insulator tube and with the stability in the form and no light loss. 3 figs.

  13. Supplymentary type semiconductor device and manufacturing method. Soho gata handotai sochi oyobi sono seizo hoho

    Energy Technology Data Exchange (ETDEWEB)

    Uno, Masaaki

    1990-01-08

    As a supplementary type semiconductor device has a complicated structure, it is extremely difficult to construct it in a three dimensional structure. This invention aims to reduce its occupying area by forming p-channel and n-channel transistors in a solid structure; moreover in an easy method of production. In other words, an opening is made in the element-forming region of a semiconductor substrate, forming a gate-insulation film on each of the p-type and n-type semiconductors which are exposed on the two facing surfaces; on it formed a gate electrode; p-type semiconductor surface is used as a channel domain; a drain region of n-channel transistor on one surface and a source region on another surface; the n-type semiconductor surface corresponding to the gate electrode is used as a channel region; a source region of the n-channel transistor is formed on the same surface and the drain region on the substrate surface. Occupied area is thus made less and the production gets easier. 20 figs.

  14. Tko su za nas Turci / Osmanlije? Ili kako su predstavljeni u hrvatskim udžbenicima povijesti i sintezama / pregledima hrvatske povijesti

    Directory of Open Access Journals (Sweden)

    Damir Agičić

    2015-08-01

    Turcy osmańscy w późnym średniowieczu i wczesnej epoce nowożytnej mieli istotny wpływ na historię Europy, w tym także na historię Chorwacji. Zarówno w podręcznikach, jak w poddanych analizie syntezach historii Chorwacji widoczne są dwie przeciwstawne wizje stosunków turecko-chorwackich, jak zresztą i innych momentów narodowej historii: pierwsza, etnocentryczna, wyolbrzymia własną przeszłość i charakteryzuje się w wielu miejscach nietolerancją w stosunku do innych, szczególnie sąsiadów, druga natomiast jest bardziej nowoczesna, otwarta i wyważona. W artykule wymienione są przykłady, które wizje te potwierdzają.

  15. Effect of dosing quillaia saponin on waste water form marine products industries; Suisan kako danchi kara o haisui ni taisuru quillaia saponin no tenka no koka

    Energy Technology Data Exchange (ETDEWEB)

    Nagasaka, M. [Ibaraki University, Ibaraki (Japan). Faculty of Engineering

    1995-12-20

    For waste water treatment facilities of S marine products industrial complex, a demonstrative test was carried out on a waste water treatment method in which addition of biological activity promoter `quillaia saponin` and the aerobic/anaerobic method are combined. In the S marine products industrial complex, there are more than 100 plants which deal mostly with salt-preserved and boiled-fish-paste products. The plant is operated by the activated sludge method with the pretreatment pressurized floatation. The capacity of the aeration tank and concentration tank for the experiment was 2600m{sup 3} and 110m{sup 3}, respectively. The amount of saponin added was approximately 3mg/L for the amount of influent (raw waste water). The measurement items were transparency, SS, COD, BOD, n-hexane extracts (oil content), MLSS, etc. As a result of the experiment, it was found that the equipment of flocculant addition and pressurized floatation as pretreatment facilities is not necessary; the activated sludge treatment of even the waste water in which n-hexane extracts are more than 100mg/L is possible without the pretreatment; and the n-hexane extracts in the treated water is less than 2mg/L. 7 refs., 7 figs., 6 tabs.

  16. Effect of dosing quillaia saponin on waste water from edible meat industry; Shokuniku kako kojo no haisui ni taisuru quillaia saponin no tenka no koka

    Energy Technology Data Exchange (ETDEWEB)

    Nagasaka, M. [Ibaraki University, Ibaraki (Japan). Faculty of Engineering

    1995-12-20

    For the waste water from meat processing factories, high in BOD and fat concentration, an effective treatment method was studied, wherein quillaia saponin was dosed. The waste water treatment facility of Factory K, manufacturer of ham and sausage, includes a total volume of 410m{sup 3} of aeration tanks taking in an average of 300m{sup 3}/day of waste water. The facility suffers from sludge overflows routinely, and, as a measure to cope with the situation, coagulating agents are dosed to the waste water for forced settlement. Under these circumstances, investigations were conducted to learn the effect of saponin dosing to the facility. Beginning on the 50th day of operation, saponin was dosed to the aeration tanks, and no coagulating agents were dosed to the waste water being treated by aeration. Approximately 3mg/liter of saponin was dosed to the influent waste water not treated. As the result, it was found that the BOD value decreased in the treated waste water while that in the influent untreated waste water increased as the run advanced. Even when the load grew heavier and the pretreatment was dispensed with, there was improvement in the treated water thanks to saponin dosing, which confirmed the effectiveness of saponin dosing. 6 refs., 11 figs., 3 tabs.

  17. Kako nastaju kolektivna sjećanja: promišljanja o interakcionističkom modelu kolektivnih sjećanja

    OpenAIRE

    Vučković Juroš, Tanja

    2010-01-01

    Namjera je ovog rada ocrtati interakcionistički model kolektivnih sjećanja koji bi komplementirao do sada dominantne semiotičke i institucionalne pristupe sjećanjima. Snaga semiotičkih i institucionalnih pristupa jest ponajprije u strukturnoj analizi objekata sjećanja i proizvodnje kolektivnih sjećanja od strane političkih elita i mainstream medija, no ti pristupi nailaze na poteškoće pri objašnjavanju uloge pojedinaca i njihova pregovaranja prikaza prošlosti koje dobivaju odozgo. Upravo tu d...

  18. Thermo-mechanical treatment for improvement of superplasticity of SUS304; SUS304 no chososei kyodo kaizen no tame no kako netsu shori

    Energy Technology Data Exchange (ETDEWEB)

    Kato, M.; Torisaka, Y. [Mechanical Engineering Lab., Tokyo (Japan)

    1998-01-25

    Thermo-mechanical treatment was given to improve further the superplastic behavior of SUS 304 stainless steel. In the SUS 304, martensite phase produced by the processing induced transformation may be reversely transformed to the primary austenite phase by high-temperature heating. Crystal grain size is micronized to 1 {mu} m by combining this reverse transformation and recrystallization of the austenite phase. However, the straining rate at that time is as extremely low as 1 times 10 {sup -4}/s or lower, which is insufficient for an industrial material. Therefore, the SUS 304 processed as described above was given again a series of thermo-mechanical treatment of the similar forced cold processing and annealing to ultra-micronize the crystalline particles. Majority of the crystalline particles have come to have a grain size of several hundred nm. This test piece showed a total elongation of 400% or more at a test temperature of 973 K and a straining rate of 1.8 times 10 {sup -3}/s or lower. In addition, the straining rate sensitivity index `m` at that time was 0.45 or higher. The superplastic deformation of the SUS 304 has a high possibility of being governed by dynamic recrystallization. 4 refs., 7 figs., 1 tab.

  19. Koliko studenti koriste kartične proizvode i kako doživljavaju marketinšku komunikaciju izdavatelja kartica

    OpenAIRE

    Ozretić Došen, Đurđana; Vajda, Bernarda

    2011-01-01

    Za marketinške stručnjake u kartičnom poslovanju studentska populacija predstavlja vrlo zanimljiv i važan tržišni segment. Usluge i proizvodi koje izdavatelji kartica nude studentima kreiraju se radi privlačenja korisnika koji će steći navike dugoročnog, lojalnog korištenja odabrane marke kartice, tj. i nakon završetka akademskog obrazovanja. U radu je opisano provedeno izviđajno istraživanje o kartičnim proizvodima namijenjenim studentskoj populaciji u Republici Hrvatskoj. Istraživano je kol...

  20. Influence of strain hardening and thickness changes occurring in press forming process; Seikeiji no kako koka/itaatsu henka no buzai akkai tokusei ni oyobosu eikyo bunseki

    Energy Technology Data Exchange (ETDEWEB)

    Ueno, M; Hirota, K [Mazda Motor Corp., Hiroshima (Japan); Nakazawa, Y [Sumitomo Metal Industries Ltd., Osaka (Japan)

    1997-10-01

    Most components of the body structure are produced by press forming. This process make a uniform metal sheet into a component that have various material characteristics and thickness. This paper describes the estimation method of material characteristics and thickness changes based on the measured Vickers hardness, and the influence of these changes on the crush performance by using FE analysis. 4 refs., 12 figs., 2 tabs.

  1. Evaluation report on research and development of an ultra-advanced processing system. 3; Chosentan kako system no kenkyu kaihatsu ni kansuru hyoka hokokusho. 3

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-08-01

    This paper describes comprehensive evaluation on the following technologies as the ultra-advanced processing system: (1) large output excimer laser, (2) high-density ion beam, (3) an ultra-precision machining device, (4) ultra-advanced processing, (5) measurement and evaluation, and (6) comprehensive test. In the item (1), research and development was performed on such technologies as output increasing, output stabilization and beam formation, having achieved the targets. In the item (2), research and development was performed on such technologies as beam convergence, plasma control, ion transportation, high-frequency quadruple pole acceleration, and large-capacity class ion beam, having achieved the targets. In the item (3), research and development was performed on form creation and ultra-precision machining, having achieved the targets. In the item (4), research and development was performed on formation of high function thin films to apply the laser abrasion process to large area, ion surface modification, wide band area optics, high reflectance optics, ion injection, dynamic mixing, and modification of ultra high-grade metal surface, having achieved the targets. In the item (5), research and development was performed on high-accuracy roughness measurement, shape measurement, optical property evaluation, a wavelength meter, ultra advanced processing standard measurement, and environment correction technology, having achieved the targets. In the item (6), comprehensive demonstration was carried out on the component technologies. (NEDO)

  2. Evaluation report on research and development of an ultra-advanced processing system. Summary edition; Chosentan kako system no kenkyu kaihatsu ni kansuru hyoka hokokusho. Gaiyohen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-08-01

    Research, development and evaluation were performed with an objective of establishing the basic processing technology and ultra-precision machining device technology utilizing large output excimer laser and high density ion beams. With regard to the large output excimer laser technology, the short wavelength excimer laser life extension technology has demonstrated ong-life operation of 1.02 times 10{sup 9} shots exceeding the final target at the initial laser output of 105 mJ/pulse. With respect to the high-density ion beam technology, the gas phase converged ion beam technology has achieved an ionic current density of 2.5 {mu}A/sr. and a beam current of 25 pA. Regarding the ultra-precision machining device technology, a large ultra-precision grinding machine of five shaft control type was developed as a final target demonstrating machine, which exhibited the shape accuracy of 0.7 {mu}m and surface roughness of 3.45nm. The surface roughness satisfied the final target. Other activities include studies on the ultra-advanced processing technology, measurement and evaluation technology, comprehensive tests, and practical application of the technologies, having derived respective achievements. (NEDO)

  3. Automobiles and safety; Jidosha gijutsu. Jidosha to anzen

    Energy Technology Data Exchange (ETDEWEB)

    Kawakami, K.; Goto, T.; Shimizu, T.; Yamanaka, A. [Toyota Motor Co. Ltd., Aichi (Japan)

    1998-08-01

    The number of road traffic victims in Japan has been above the level of 10,000 annually during 8 consecutive years, but in 1996 and 1997, it becomes below this level. The casualty of road traffic accidents is found to be occurred during driving and senior persons account for a large part among victims while 55.1% of the case took place at night. As for the countermeasures, it is possible to indicate the regulatory strengthening, advancement of accident investigation and analysis, provision of safety information to the user and research and development of advanced safety vehicle (ASV). Concerning preventive safety, studies on the human recognition, systems for assisting judgement and running and so on can be enumerated. The ASV is in the course of 2nd program that lasts until 2001 with 6 safety research subjects such as prevention, collision, automatic operation, containment of disaster from expanding and so forth. In terms of post-accident safety, remarkable research and development have been conducted on collision by means of dummy and human body, human resistance against injury, air bag for rider protection and child seat, and especially the form comparison of interior materials for head protection apparatus as well as study via simulation, together with commercialization of side bag for reducing head damages. As for car body materials, energy absorption by pillar type elements, use of aluminum materials, resistance comparison and design concept of structural separation and so on are being carried out. 69 refs., 1 fig.

  4. High-level water purifying technology. Kodo josui shori gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Tsugura, H; Tsukiashi, K [Meidensha Corp., Tokyo (Japan)

    1993-07-01

    Research and development have been carried out on a high-level water purifying system using ozone and activated charcoals to supply drinking water free of carcinogenic matters and odors. This system comprises a system to utilize ozone by using silent discharge and oxygen enriching device, and a living organism/activated charcoal treatment system. The latter system utilizes living organisms deposited on activated charcoal surfaces to remove polluting substances including ammonia. The treatment experimenting equipment comprises an ozone generating system, an ozone treating column, an activated charcoal treating column, an ozone/activated charcoal control device, and a water amount and quality measuring system. An experiment was carried out using an experimental plant with a capacity of 20 m[sup 3]/day on water taken from the sedimentation process at an actual water purifying plant. As a result, trihalomethane formation potential was removed at about 40% in the ozone treatment, and at 70% in the whole treatment combining the ozone and living organism/activated charcoal treatments. For parameterization of palatability of water, a method is being studied that utilizes nuclear magnetic resonance to investigate degrees of water cluster. The method is regarded promising. 1 ref., 4 figs.

  5. Photon technology. Laser processing technology; Photon technology. Laser process gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Survey has been conducted to develop laser processing technology utilizing the interaction between substance and photon. This is a part of the leading research on photon technology development. The photon technology development is aimed at novel technology development highly utilizing the quantum nature of photons. In the field of laser processing, high quality photons are used as tools, special functions of atoms and molecules will be discovered, and processing for functional fabrication (photon machining) will be established. A role of laser processing in industries has become significant, which is currently spreading not only into cutting and welding of materials and scalpels but also into such a special field as ultrafine processing of materials. The spreading is sometimes obstructed due to the difficulty of procurement of suitable machines and materials, and the increase of cost. The purpose of this study is to develop the optimal laser technology, to elucidate the interaction between substance and photon, and to develop the laser system and the transmission and regulation systems which realize the optimal conditions. 387 refs., 115 figs., 25 tabs.

  6. Automotive technology. ; Chassis. Jidosha gijutsu. ; Chassister dot sharyo seigyo sochi

    Energy Technology Data Exchange (ETDEWEB)

    Ota, K.; Mor, H.; Ishizeki, S. (Fuji Heavy Industries Ltd., Tokyo (Japan))

    1990-07-01

    According to the trend of car suspensions announced in 1989, not only sports cars but also sedans have extensively applied a multi-link type and a double-wishbone type which are to improve operation stability and comfortableness by reexamining all their fundamental structures. Active suspensions with electronic control have been put to practical use and adopted for the first time to mass-produced cars such as INFINITI'' and CELICA''. Concerning steerings, most types of light cars are now equipped with power steerings. Moreover, application of air bags has increased, and safety has been improved by commercialization of the first mechanical air bags in addition to the conventional electrical ones. As for brakes, more anti-lock brakes have been used for 4WD cars and low-displacement cars. Motorcars with a traction control system have consequently increased. Thus both the anti-lock brakes and the traction control system are contributing to the improvement in safety. 17 figs., 2 tabs.

  7. Microbial EOR technology; Biseibutsu EOR gijutsu no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Taguchi, M.; Yonebayashi, E. [Tech. Research Center, Japan National Oil Corp., Tokyo (Japan)

    1995-11-10

    This paper describes attempts of establishing an oil recovery technology utilizing microorganisms and of aiming at improving the practicability of that technology. Fiscal 1994 has investigated effects of inorganic salts existing in reservoir beds and NaCl concentrations on proliferation of microorganisms and production of metabolites. The investigation was intended to discuss applicability of microorganisms to environments that are brought closer to actual field conditions. Furthermore, a core sweeping test using sandstone was carried out on the fiscal 1992 separated bacteria, the 4118 bacteria, that has high surfactant production capability. In addition, a sand pack was used to perform a flooding experiment under conditions of 50{degree}C and 50 KSC to evaluate functionality of microorganisms when environments in the reservoir bed are simulated with respect to pressures and temperatures. An oil recovering experiment was carried out using a sandstone with a diameter of 1.5 inches, a length of 1.0 foot and permeability of 600 md, and using Bacillus subtilis 4118 bacteria which attained the lowest interfacial tension among the bacteria examined. A recovery rate of 4.4% Sor was derived in the experiment. A recovery rate of 29.0% Sor at maximum was obtained when Bacillus licheniformis 18-2-a bacteria was supplied into a sand pack filled with silica sand. 20 figs., 7 tabs.

  8. Photon technology. Laser process technology; Photon technology. Laser process gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For developing laser process technology by interaction between substance and photon, the present state, system, R and D issues and proposal of such technology were summarized. Development of the photon technology aims at the modification of bonding conditions of substances by quantum energy of photon, and the new process technology for generating ultra- high temperature and pressure fields by concentrating photon on a minute region. Photon technology contributes to not only the conventional mechanical and thermal forming and removal machining but also function added machining (photon machining) in quantum level and new machining technology ranging from macro- to micro-machining, creating a new industrial field. This technology extends various fields from the basis of physics and chemistry to new bonding technology. Development of a compact high-quality high-power high-efficiency photon source, and advanced photon transmission technology are necessary. The basic explication of an unsolved physicochemical phenomenon related to photon and substance, and development of related application technologies are essential. 328 refs., 147 figs., 13 tabs.

  9. Technique of CWM distribution system; CWM ryutsu chukei system gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Konno, K [Center for Coal Utilization, Japan, Tokyo (Japan); Tanaka, M

    1996-09-01

    It may be intended that CWM is manufactured in areas near coal producing areas in overseas countries and imported as a product requiring lower handling cost than in bulk products. In order to achieve this idea, it is necessary to establish a distribution and relaying system for product transportation inside and outside the country, including relaying bases for receiving, loading and storing the product. This paper reports results of the demonstration tests performed since 1992 to 1996. In the tests, CWM made from Chinese coals was transported from Shijiu Port to the Hibiki relaying base in the city of Kita-Kyushu on 5000 DWT ocean vessels, unloaded, stored, and loaded again on 700 DWT domestic vessels for distribution to users. Since the inauguration of transportations, 40,000 tons of CWM were delivered yearly to the Okayama plant of Tayca Company, and about 20,000 tons to the Mizushima power plant of the Chubu Electric Power Company over a period from 1995 to 1996. During the period, a number of findings were acquired in different aspects, including quality control of incoming and outgoing CWM, stability in quantity and properties, loading and unloading works, and transportation. Although reduction in subsidence during transportation and storage was indicated desirable, the practical applicability was verified for the relaying system as a whole. 4 refs., 15 figs., 3 tabs.

  10. Technology for improving sludge concentration; Odei noshukusei kaizen gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-10

    Sludge generating in a sewage treatment plant is disposed through the processes such as concentration, dehydration, and incineration in sludge disposal facilities. In recent years, there has been a trend that this sludge increases in volume as well as worsens in the concentration. A case is predictable where the sludge load to the dehydrating process is so large that the sludge can no longer be processed in sufficient quantity. In the meantime, if sludge is ozone-treated, viscous substance on the surface of sludge particles can be separated with a comparatively small amount of ozone, with sludge concentration enhanced. At Meidensha, an experimental plant was set up for the ozone treatment of sludge in a sludge intensive treatment plant of a metropolis, with a verification experiment carried out for a sludge concentration improving system by ozone. As a result of comparison of the treatment performance between an assessment system for performing ozone treatment and a reference system for not performing, the average value of the sludge concentration of a gravity concentration tank was 1.9% of the reference system against 1.7% of the assessment system in a continuous treatment experiment in the summer, while the solid collection ratio was 65.8% of the reference system against 95.5% of the assessment system, enabling a superior improving effect to be obtained. (NEDO)

  11. Winter concrete; Kanchu kunkurito. Gijutsu no genjo to shorai tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Kamata, Eiji [Hokkaido University, Hokkaido (Japan)

    1998-11-10

    Much energy is consumed in order to carry out the winter concrete, and it becomes not always the work in the work environment of the amenity. Therefore, it wants to avoid it, if such work is possible. The winter concrete is a basis in carrying out the construction in cold region in all year. Large role is very much fulfilled for efficient operation of the construction industry in which foot of maintain is wide, activation of the regional economy of snows cold region such as the constant employment of construction worker, improvement in the social environment. Therefore, the popularization of the winter concrete technology is indispensable in the chilly snowy area, and it becomes the importance that the efficiency improvement is attempted. (NEDO)

  12. Photon technology. Hard photon technology; Photon technology. Hard photon gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Research results of hard photon technology have been summarized as a part of novel technology development highly utilizing the quantum nature of photon. Hard photon technology refers to photon beam technologies which use photon in the 0.1 to 200 nm wavelength region. Hard photon has not been used in industry due to the lack of suitable photon sources and optical devices. However, hard photon in this wavelength region is expected to bring about innovations in such areas as ultrafine processing and material synthesis due to its atom selective reaction, inner shell excitation reaction, and spatially high resolution. Then, technological themes and possibility have been surveyed. Although there are principle proposes and their verification of individual technologies for the technologies of hard photon generation, regulation and utilization, they are still far from the practical applications. For the photon source technology, the laser diode pumped driver laser technology, laser plasma photon source technology, synchrotron radiation photon source technology, and vacuum ultraviolet photon source technology are presented. For the optical device technology, the multi-layer film technology for beam mirrors and the non-spherical lens processing technology are introduced. Also are described the reduction lithography technology, hard photon excitation process, and methods of analysis and measurement. 430 refs., 165 figs., 23 tabs.

  13. Photon technology. Hard photon technology; Photon technology. Hard photon gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    For the application of photon to industrial technologies, in particular, a hard photon technology was surveyed which uses photon beams of 0.1-200nm in wavelength. Its features such as selective atom reaction, dense inner shell excitation and spacial high resolution by quantum energy are expected to provide innovative techniques for various field such as fine machining, material synthesis and advanced inspection technology. This wavelength region has been hardly utilized for industrial fields because of poor development of suitable photon sources and optical devices. The developmental meaning, usable time and issue of a hard photon reduction lithography were surveyed as lithography in ultra-fine region below 0.1{mu}m. On hard photon analysis/evaluation technology, the industrial use of analysis, measurement and evaluation technologies by micro-beam was viewed, and optimum photon sources and optical systems were surveyed. Prediction of surface and surface layer modification by inner shell excitation, the future trend of this process and development of a vacuum ultraviolet light source were also surveyed. 383 refs., 153 figs., 17 tabs.

  14. Paradigm for new scientific technology; Shinkagaku gijutsu paradigm

    Energy Technology Data Exchange (ETDEWEB)

    Shindo, Y [National Chemical Lab. for Industry, Tokyo (Japan)

    1995-01-05

    This paper reviews the current status from the standpoint of chemical engineers facing the coming of the 21st century, and surveys the paradigm for new scientific technologies. The criticism is mixed with unique opinions everywhere, such as `departure of students from scientific and engineering faculties is none other than the result of a market principle`, `national burden of trillions of yens should not be spent only under a justice of advancement of the science`, and `the global civilization itself has no other way but to change from the conventional expansive development type of the western country style to the internal development type of the oriental country style`. Values that define the paradigm for new scientific technologies may include such keywords as saturation in technology, baseless expansion of research projects, criticism on science, market principle, and centering human being. It should be looked at seriously that profit from research and development should exceed the cast invested therein in the future, and scientific technologies that serve truly the society should be aimed at. These efforts will result in one of the large pillars that support the future in which creation of new functions is aimed at as a result of structuring the new systems. Trying to overcome the environmental problems is one of them.

  15. Laser innovated manufacturing technology; Laser ga seisan gijutsu wo kakushinshita

    Energy Technology Data Exchange (ETDEWEB)

    Maruyama, I. [Honda Motor Co. Ltd., Tokyo (Japan)

    1996-11-01

    This paper looks back the history of applications of laser processing in the automobile industry, and introduces contents of some particularly unique applications from among them. The CO2 laser and YAG laser that are used mainly have increased their outputs with the times, and 50-kW CO2 laser and 4-kW YAG laser have now become available commercially. The laser processing has become used widely for cutting purpose in Japan, which is in contrast with their high application to welding in Europe and America. Cutting thick plates has been developed recently, which is applicable to plates as thick as about 25 mm. A flexible system in which YAG laser is combined with an optical fiber/articulated robot is operating for three-dimensional shape processing. Automobile makers are adopting laser processing for welding in place of the electron beam welding that has been used conventionally. The process is used also for a number of other applications including surface reformation, such as surface quenching for cylinder liner, and valve seat padding. 8 refs., 8 figs.

  16. Evaluation technology of clothing comfortableness; Ifuku tekigosei hyoka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Niwaya, H.

    1999-10-26

    Modern apparel industries are required to supply many kinds of products corresponding to various needs of consumers. Among consumers' needs, comfortableness to wear such as size-fitness is primarily important. To facilitate apparel industries, it is expected to develop a new technology of pattern designing of comfortable garment and measuring garment pressure distribution. Our research is aimed at developing technology that uses computer simulation to predict and evaluate wear comfort, including size suitability, without the need to actually sew up a garment. First, we developed a basic system to predict wearing silhouette, garment pressure, and ease looseness of the garment. Using this system, we carried on the following study. The 3-dimensional distributions of the garment pressure and ease looseness were reversely mapped on the paper pattern in order to indicate the preferable modification. The system was extended for several poses, e.g. twist, bend. From various parameters, we examined the factors of garment pressure and ease looseness. In addition, we selected the parameters for the size-fit indicators and investigated size-fit evaluation indicators. (author)

  17. Survey on peripheral techniques of brown coal liquefaction techniques; Kattan ekika gijutsu ni kansuru shuhen gijutsu no chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-09-01

    Described herein are results of survey on brown coal liquefaction techniques and peripheral techniques, centered by COSTEAM process under development in USA, solubilization by alcohol and liquefaction and cracking with the aid of tetrahydroquinoline as the hydrogen donor under development in Japan, and low-temperature carbonization and new promising techniques. The COSTEAM process shows higher reaction rates, conversions and oil yields for brown coal liquefaction than the one using hydrogen gas. Some of the problems involved in this process high viscosity and oxygenated compound content of the product oil. The product oil is acceptable as fuel for power generating plants and can be produced at a moderate cost, but may be unsuitable as vehicle fuel. Coal liquefaction and solubilization processes are mainly represented by those which use hydrogen. The hydrogen cost, which is high, determines the product price. The processes which use alcohol or tetrahydroquinoline are still in the experimental stage. (NEDO)

  18. FY 1991 Research and development project for large-scale industrial technologies. Report on results of R and D of superhigh technological machining systems (Development of advanced machining devices for power-generating members); 1991 nendo chosentan kako system no kenkyu kaihatsu seika hokokusho. Hatsuden shisetsuyo buzai kodo kako sochi kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    Described herein are the FY 1991 results of the R and D project aimed at establishment of superprecision machining technologies for developing machining technologies and nano-technologies aided by excited beams. For increasing the excimer laser output, the discharge-exciting technologies necessary for designing the 2kW laser as the final target are established. The service life tests are started to demonstrate the member service life of 10{sup 9} shots or more. For development of the technologies for large-current composite ion beams, the plant is constructed to attain the final targets (100keV, 2A, width: 500mm or more). The currents reaching the substrate are developed to have 2.8mA with the Ar ion and 2.9mA with the Ca ion by, e.g., developing the ion sources and improving functions of the ion beam controlling systems. Researches on the surface modification technologies for producing the superhigh-quality metallic surfaces involve composite ion implantation and providing the modified layer of Ti-B-based hard compound. Corrosion rate of the modified titanium surface in a boiling sulfuric acid solution is reduced from 300mm/year to around 0.13mm/year. (NEDO)

  19. Research and development project in fiscal 1990 for large industrial technologies. Achievement report on research and development of ultra-advanced processing systems (Development of high-level processing devices for electric power generation facility members); 1990 nendo chosentan kako system no kenkyu kaihatsu seika hokokusho. Hatsuden shisetsuyo buzai kodo kako sochi kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    Research and development has been performed with an objective to establish the processing technology using excitation beam required for the advanced technology industries, and the ultra-precision machining technology to realize the nano-technology. This paper summarizes the achievements in fiscal 1990. In the research on the large output and long life technology for excimer laser, an average output of 500 W or more was demonstrated achieving the intermediate target by developing and improving the technologies for low electric power gas circulation, high efficiency discharge and excitation, and large output oscillation control. In the research on intensity resistant optical element technology, a prototype device was fabricated to create and process axially symmetrical aspherical shapes, whereas SiC aspherical shape creation and processing were demonstrated at the shape accuracy of three microns or better, and surface roughness of 20 nanometers or less, having achieved the intermediate target. Regarding the large current ion beam, a demonstration device was completed based on improvements and test results on the sheet plasma generator. In the research and development of the high-level processing technology, low-temperature forming technology was developed for oxide ceramic thin films by using the excimer laser abrasion method. (NEDO)

  20. Characteristics and utilization of non-wood pulp and paper; Himokuzai pulp / kami no tokucho to sono riyo

    Energy Technology Data Exchange (ETDEWEB)

    Hara, H. [Mishima Paper Co. Ltd., Shizuoka (Japan)

    1998-09-01

    The reasons, difficulty in the usage, and the methods of use of non-wood papers are discussed. Non-wood papers sold in Japan are arranged basing on published data. The type of non-wood paper classified as special printing paper makes up the majority, and there are a variety of other products such as printing board, coated paper, thin paper, wrapping paper, functional paper, and watercolor paper. Kenaf and cotton are used in large quantities as non-wood plants for paper production, and use of bagasse and bamboo is increasing. Non-wood paper are used in consideration of environmental and resources problems and for utilizing the special features of non-wood fiber, and the characteristics of non-wood pulp and the effect of non-wood paper are discussed in this report. It is expected that papers utilizing the characteristics of non-wood paper will be developed. Non-wood papers are substitutions for various papers produced from wood pulp, and the fundamental point is the method of improving the original quality and paper quality by combining with non-wood pulp. 11 refs., 4 figs., 3 tabs.

  1. “Per fortuna ci sono le mucche.” Brevi considerazioni sul valore del pañcgavya.

    Directory of Open Access Journals (Sweden)

    Deborah Nadal

    2014-12-01

    Full Text Available This article analyses the value of pañcgavya and its role in Hindu culture and religion. “Pañcgavya” is a Sanskrit word which means “the five of the cow”, i.e. milk, curd, clarified butter, dung and urine. These five products can be used one by one or combined together in proper ratio. For centuries they have been used in traditional Hindu rituals as prasad (religious offering consumed by the worshippers, as medicaments in Ayurvedic medicine and as fertilizers and pesticides. Nowadays these cow products are utilized for personal hygiene and for household cleanliness as well. The medicinal usage of pañcgavya, particularly cow urine, is commonly known as “cowpathy” and is very appreciated by Indian, especially Hindu, consumers. The reasons of this success are the eco-friendliness of these natural products and, above all, the fact that they come from the body of the most esteemed animal of India. In Hindu culture the cow is considered to be the highest example of purity and perfection and the best emblem of generosity and plenty. The “five of the cow” are the most important products of this magnanimity.

  2. Research of fragranced air, environmental aroma, to human and its application. Kankyo hoko no koka to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Hashimoto, S. (Shimizu Construction Co. Ltd., Tokyo (Japan))

    1991-06-01

    The effect of lemon, jasmine and lavender aroma on people was studied through environmental aroma experiments by 270 subjects in a meeting room for two months. As a result, the high percentage of positive responses was obtained on the sense of air cleanliness and efficiency of meetings, and a statistical significance was, in particular, obtained in the case of lemon as smoking was permitted. It was suggested that aroma had physiological and phychological effect even under conditions where the subjects were not necessarily aware of aroma. The effect of the same three aromas was also studied through experiments by 13 subjects in a VDT room for one month. As a result, the number of keypunch errors decreased in every aroma although punching speeds decreased slightly, and lemon showed a significant difference among three aromas. Based on these experimental results, the aroma generator was developed, and more than 30 environmental aroma systems combined with air conditioning ducts have been installed in Japan. 20 refs., 5 figs., 6 tabs.

  3. Sea bottom gravity survey of Osaka bay and its study; Osakawan kaitei juryoku chosa to sono kosatsu

    Energy Technology Data Exchange (ETDEWEB)

    Komazawa, M [Geological Survey of Japan, Tsukuba (Japan); Ota, Y; Shibuya, S; Kumai, M; Murakami, M [Japex Geoscience Institute, Inc., Tokyo (Japan)

    1996-05-01

    This paper reports a sea bottom gravity survey conducted with an objective to identify deep underground structure in the vicinity of the epicenter of the Hyogoken-Nanbu Earthquake. The surveyed areas are the whole Osaka Bay area north of the north latitude of 34 degrees and 20 minutes, and the eastern part of the Sea of Harima east of the east longitude of 134 degrees and 40 minutes, excluding the areas difficult of performing measurements. A square lattice with sides each about 2 km was arranged with 408 measurement points. The measurement was carried out by using an observation vessel mounted with a sea bottom gravimeter made by LaCoste and Romberg Corporation, which was lowered down to the sea bottom at the measurement points. Errors in positions and water depths at the gravity measuring points were suppressed to less than 0.002 minutes and 0.1 m, respectively. The measurement data were given necessary corrections by using a unified method applicable also to land areas, and a Bouguer anomaly chart was prepared. Based on the chart, this paper summarizes features in the Bouguer anomaly in the surveyed areas (such as the low-gravity anomaly band extending the central part of the Osaka bay from north-east to south-west, and the gradient structure existing on the Awaji island side). 6 refs., 1 fig.

  4. Erection of the stiffening girder of the Akashi Kaikyo bridge; Akashi Kaikyo Ohashi hokoketa (sono 2) koji no genchi seko

    Energy Technology Data Exchange (ETDEWEB)

    Otsuki, M.; Inoue, M.; Ueno, Y.; Matsumura, T.; Oe, S. [Kawasaki Heavy Industries, Ltd., Kobe (Japan)

    1998-12-20

    The Akashi Kaikyo Bridge is 3,911m long with a center span of 1,991m, making it the longest suspension bridge in the world. Much careful attention has been given to the erection planning details in order to construct the bridge to withstand the harsh environmental conditions of that area. This report details the characteristics of the bridge stiffening girder and erection procedure, and the effects of the Hyogoken-Nanbu Earthquake. (author)

  5. Studies of structure change of iron sulfates and its catalysis; Ryusantetsukei shokubai no kozo henka to sono shokubai sayo

    Energy Technology Data Exchange (ETDEWEB)

    Ogata, E.; Horie, K. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Nishijima, A. [National Institute of Materials and Chemical Research, Tsukuba (Japan)

    1996-10-28

    Since a huge amount of coal containing inorganic ash is treated for the commercial hydroliquefaction process, cheap catalysts widely distributing on the earth with large reserves are desired rather than expensive catalysts. This paper describes the effects of addition of sulfur on the catalysis of iron sulfates during the hydroconversion of 1-methylnaphthalene (1-MN). Reactions of 1-MN were conducted at the same charging amount of iron in the reaction system. Sulfur was directly added in the reaction system using ferrous sulfate (FeSO4) as precursor. Consequently, it was found that FeSO4 provides lower but similar catalytic activity to the synthetic pyrite catalyst prepared through the complex processes with the precise control. Thus, it was revealed that high performance pyrrhotite (Fe(1-x)S) catalyst can be prepared for the hydrogenation of aromatic-rings by adding solid sulfur into the reaction system using commercial reagent, FeSO4 as a precursor of the catalyst. 9 figs.

  6. Charcterized surpervisory control system for elevators and its support equipment. Elevator koseika gun kanri system to sono shien sochi

    Energy Technology Data Exchange (ETDEWEB)

    Tobita, T.; Fujino, A.; Yoneda, K.; Ueshima, T. (Hitachi Ltd., Tokyo (Japan))

    1991-12-20

    Objective of elevators plural control system for performing the operation control of multiple elevators is to improve the service to users. The service improvement toward a conventional plural control system is mainly to reduce waiting time on the riding floor from the calling button being pushed till elevator reaching the riding floor. Subsidiary to it, merely energy-saving is carried out. In the present study, a characterized supervisory control system was developed to make plural supervisory control receiving the requests from users to reduce not only the usual waiting time but also riding time and congestion inside. In order to meet the requests of users, a characterized support equipment was produced dialogically by combining fuzzy ratiocination, production system as well as simulation. The effects thereof were confirmed. 12 refs., ll figs., 2 tabs.

  7. " LE ANIME SONO SANGUE " (REF. I 22, 5 = 340 USENER) UNA TESTIMONIANZA 'IPPOLITEA' SULLA PSICOLOGIA DI EPICURO *

    OpenAIRE

    Scalas , Giulia

    2015-01-01

    International audience; In this paper I aim at analysing one passage of the Refutatio omnium haeresium (I 22, 5 = 340 Usener) to understand whether it is consistent with the Epicurean doctrine of soul. First, I provide an account of the historical context of the Refutatio. Secondly, I provide a comparison between the content of the passage and the Epicurean psychology. As a result, the theory according to which " souls are blood " , which occurs in the passage, appears to be inconsistent with...

  8. Novel methodology for the production of carbon nanotubes and their application; Atarashii kabon nanochubu no seizo to sono oyo

    Energy Technology Data Exchange (ETDEWEB)

    Kyotani, T; Tomita, A [Tohoku Univ., Sendai (Japan)

    1996-11-01

    Carbon nanotubes (CNTs) are highly evaluated together with fullerene for their potential use as novel materials. Currently, CNTs can be synthesized by arc discharge with carbon electrodes or by thermal decomposition of hydrocarbons in gas phase. However, neither of these processes afford selectively CNTs homogenous in diameter and length. The authors found out that homogeneously sized CNTs are available by using, as templates for depositing carbon, linear micro-pores in oxide film formed by anodic oxidation of aluminum. The diameter, length and density of micro-pores can be easily controlled by changing conditions for electrolysis. Carbon is deposited onto the inner wall of the pore by thermal decomposition of propylene at 800 centigrade in a quartz reaction tube. Thereafter, oxide film is removed by dissolution. CNTs thus obtained are open in both ends and easy for insertion of heterogeneous materials such as metals into pore space. A platinum/CNT one-dimension complex was prepared by inserting platinum. Since complexes such as this may have novel properties that bulk materials would not show, they are expected to be used as novel semiconductors or catalysts. 7 refs., 4 figs.

  9. Development of a Sono-Assembled, Bifunctional Soy Peptide Nanoparticle for Cellular Delivery of Hydrophobic Active Cargoes

    DEFF Research Database (Denmark)

    Zhang, Yuanhong; Zhao, Mouming; Ning, Zhengxiang

    2018-01-01

    -assembled SPN in spherical appearance and core-shell structure maintained by noncovalent interactions was successfully fabricated, exhibiting small particle size (103.95 nm) in a homogeneous distribution state (PDI = 0.18). Curcumin as a model cargo was efficiently encapsulated into SPN upon sonication, showing...... high water dispersity (129.6 mg/L, 104 higher than its water solubility) and storage stability. Additionally, the pepsin-resistant SPN contributed to the controlled release of curcumin at the intestinal phase and thus significantly improved the bioaccessibility. Encapsulated curcumin was effective...

  10. High stable suspension of magnetite nanoparticles in ethanol by using sono-synthesized nanomagnetite in polyol medium

    International Nuclear Information System (INIS)

    Bastami, Tahereh Rohani; Entezari, Mohammad H.

    2013-01-01

    Graphical abstract: - Highlights: • The sonochemical synthesis of magnetite nanoparticles was carried out in EG without any surfactant. • The nanoparticles with sizes ∼24 nm were composed of small building blocks with sizes ∼2 nm. • The hydrophilic magnetite nanoparticles were stable in ethanol even after 8 months. • Ultrasonic intensity showed a crucial role on the obtained high stable magnetite nanoparticles in ethanol. - Abstract: The sonochemical synthesis of magnetite nanoparticles was carried out at relatively low temperature (80 °C) in ethylene glycol (EG) as a polyol solvent. The particle size was determined by transmission electron microscopy (TEM). The magnetite nanoparticles with an average size of 24 nm were composed of small building blocks with an average size of 2–3 nm and the particles exhibited nearly spherical shape. The surface characterization was investigated by using Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The stability of magnetite nanoparticles was studied in ethanol as a polar solvent. The nanoparticles showed an enhanced stability in ethanol which is due to the hydrophilic surface of the particles. The colloidal stability of magnetite nanoparticles in ethanol was monitored by UV–visible spectrophotometer. According to the results, the nanoparticles synthesized in 30 min of sonication with intensity of 35 W/cm 2 (50%) led to a maximum stability in ethanol as a polar solvent with respect to the other applied intensities. The obtained magnetite nanoparticles were stable for more than12 months

  11. Le serie tv sono la nuova soap opera? Luci e ombre della Grande Serialità televisiva

    Directory of Open Access Journals (Sweden)

    Daniela Cardini

    2016-06-01

    Full Text Available Until a few years ago, television seriality was a secondary topic in the academic research, above all in Italy, whereas today, tv series have turned into the main interest of a lively scholarship, mostly belonging to disciplines traditionally not interested in the study of serial forms. Mutatis mutandis, today the central role of tv series is similar to the relevance of the soap opera in the critical debate in the Eighties and Nineties. From being neglected as an irrelevant part of television schedules, in a few years the soap opera turned into the symbol of a rich and polysemic textuality which quickly became the central topic of the newly-born fields of television studies and women studies. Obviously, the parallel between the soap opera and the new tv series cannot be drawn upon narrative or aesthetic dimensions, but (in the maybe provocative perspective proposed by this paper both formulas demonstrate a basic assumption of seriality: serial forms are  shaped by the mediascape they stem from. Therefore, as it happened to the soap opera, today’s academical interest for tv series shows many great opportunities and some deep contradictions, including the old matter of cultural hegemony which seems to appear once again in the evaluative attitude of some critical approaches.

  12. SonoNet: Real-Time Detection and Localisation of Fetal Standard Scan Planes in Freehand Ultrasound.

    Science.gov (United States)

    Baumgartner, Christian F; Kamnitsas, Konstantinos; Matthew, Jacqueline; Fletcher, Tara P; Smith, Sandra; Koch, Lisa M; Kainz, Bernhard; Rueckert, Daniel

    2017-11-01

    Identifying and interpreting fetal standard scan planes during 2-D ultrasound mid-pregnancy examinations are highly complex tasks, which require years of training. Apart from guiding the probe to the correct location, it can be equally difficult for a non-expert to identify relevant structures within the image. Automatic image processing can provide tools to help experienced as well as inexperienced operators with these tasks. In this paper, we propose a novel method based on convolutional neural networks, which can automatically detect 13 fetal standard views in freehand 2-D ultrasound data as well as provide a localization of the fetal structures via a bounding box. An important contribution is that the network learns to localize the target anatomy using weak supervision based on image-level labels only. The network architecture is designed to operate in real-time while providing optimal output for the localization task. We present results for real-time annotation, retrospective frame retrieval from saved videos, and localization on a very large and challenging dataset consisting of images and video recordings of full clinical anomaly screenings. We found that the proposed method achieved an average F1-score of 0.798 in a realistic classification experiment modeling real-time detection, and obtained a 90.09% accuracy for retrospective frame retrieval. Moreover, an accuracy of 77.8% was achieved on the localization task.

  13. Photo-, sono- and sonophotocatalytic degradation of methylene blue using Fe3O4/ZrO2 composites catalysts

    Science.gov (United States)

    Kristianto, Y.; Taufik, A.; Saleh, R.

    2017-07-01

    In the present work, magnetite material Fe3O4/ZrO2 with various molar ratios was prepared by the two-step method (sol-gel followed by the ultrasonic-assisted method). The as-prepared samples were fairly characterized by various characterization methods, such as X-ray Diffraction (XRD), Vibrating Sample Magnetometer (VSM), Fourier Transform Infrared (FT-IR) and Thermal Gravimetric Analysis (TGA). The catalytic performance of the as-prepared samples was evaluated based on the degradation of methylene blue under UV light, ultrasound and combination of UV and ultrasound irradiation. The results revealed that the sample with Fe3O4:ZrO2 molar ratio of 0.5:1 showed the best catalytic performance under UV, ultrasound and UV + ultrasound irradiation. The degradation of methylene blue follows the order: sonophotocatalytic > sonocatalytic > photocatalytic. In addition, the effect of various scavengers has also been studied. Furthermore, all prepared samples could be used as a convenient recyclable catalyst.

  14. Avaliação da qualidade do sono de estudantes universitários de Fortaleza-CE

    Directory of Open Access Journals (Sweden)

    Márcio Flávio Moura de Araújo

    2013-01-01

    Full Text Available El objetivo de esta investigación fue evaluar la calidad del sueño de los estudiantes universitarios en Fortaleza, Ceará, Brasil. Se realizó una encuesta con los estudiantes de 701 en la Universidad Federal de Ceará (UFC entre marzo y junio de 2011. Se utilizó el índice de la Calidad del Sueño de Pittsburgh (PSQI. La mayoría de los estudiantes tenía una mala calidad subjetiva del sueño (54%, la latencia del sueño y la eficiencia de menos de 15 minutos (60,1% y 65% (99%, respectivamente. La duración del sueño de la muestra fue de 6,3 horas por día (SD ± 1,4 horas (p <0,001. El análisis de los siete componentes del PSQI mostró que una parte sustancial de los estudiantes universitarios encuestados (95,2% tienen mala calidad del sueño. El análisis de datos reveló que una parte sustancial de la universidad investigado (95,3% tenían mala calidad del sueño.

  15. 1 H NMR and sono chemistry: monitoration of elimination and isomerization reactions of diterpenes, catalysed by TFAA

    International Nuclear Information System (INIS)

    Uchoa, Daniel Esdras de Andrade; Silveira, Edilberto Rocha

    1997-01-01

    There are in the literature several papers dealing with the influence of ultrasound over chemical reactions [1-4]. According to Moon, S., the general mechanism of sonochemistry (the chemistry of sound and ultrasound) is not known, but it is generally agreed that the phenomenon of cavitation (formation and collapse of micro-bubbles) is responsible for its chemical effects. Although ultrasound has been known for more than 60 years its application to chemical reactions has not been investigated throughly. (author)

  16. Feature of extradosed PC bridge and its design; Daihenshin keburu PC kyo no tokucho to sono sekkei

    Energy Technology Data Exchange (ETDEWEB)

    Komiya, M. [Japan Bridge and Structure Institute Inc., Tokyo (Japan)

    1997-03-31

    A PC bridge with the eccentricity of the external cable increased by protruding the deviated member to the outside of the beam for more effective use of the external cable is called a `PC bridge with tendons of large eccentricity.` The extradosed bridge of main beam/cable joint type is a PC bridge with the external cable arranged via a tower-shaped eccentric member provided at the intermediate support, and resembles morphologically a cable stayed bridge having a very low tower. There are two types of extradosed bridges, i.e. a type with concrete coated external cable (cable stayed slab bridge) and the other with non-coated external cable (external cable stayed bridge). Features, structural planning and designing of the general external cable stayed bridge are shown. The features are the possession of intermediate characteristics of those of the PC beam bridge and the PC cable stayed bridge from the viewpoints of structural property, workability, economic efficiency, and scenic property. Outline of the plan, selection of structural data, design of the external cable, and structural characteristics in the ultimate state are discussed. 19 refs., 18 figs., 15 tabs.

  17. Comprehensive and Critical Literature Review on Insitu Micro-Sensors for Application in Tribology

    Science.gov (United States)

    1994-04-01

    Tsugai, Masahiro; Bessho, Mikio ; Araki, Toru; Onishi, Masayoshi; Sesekura, Takashi Source: SAE Technical Paper Series. Publ by SAE, Warrendale, PA, USA...MONITORING OF HYDROGEN ASSISTED CRACKING OF LOW ALLOY STEEL. Author. Hayashi, Yasuhisa; Takemoto, Mikio Source: Boshoku Gijutsu/Corrosion Engineering v...METALS AND ITS APPLICATION TO AE SENSOR. Author. Shimizu, Hiroshi; Watanabe, Hiroshi; Sato , Michio Source:. Japanese Journal of Applied Physics, Supplement

  18. JPRS Report, Science & Technology, Japan: Symposium on Applications of Advanced Technology: Sensors

    Science.gov (United States)

    1992-03-02

    Tokyo SENTAN GIJUTSU OYO formation of amphipathic cellular membrane compo-SYMPOSIUM in Japanese 3 Sep 91 pp 37-45 nents of procaryote , rhamnolipids A...rhamnolipid has a nonionic sugar part and an anionic cellular liposome as the matrix lipid of a biological film, carboxylic group as the hydrophilic...the phospholipids of bacterial 3. Liposome Sensor cellular membranes have no phosphatadyl choline and consist mainly of phosphatadyl ethanolamine, 4

  19. Next-generation coal utilization technology development study. Environmentally-friendly coal combustion technology; O2/CO2 combustion technology; Sekitan riyo jisedai gijutsu kaihatsu chosa. Kankyo chowagata sekitan nensho gijutsu (sanso nensho gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    For the purpose of developing combustion systems in which environmental pollutants are less emitted from coal-fired boilers, conducted in fiscal 1994 were a study of load followability of oxygen producing equipment, and element and basic tests on oxygen combustion systems. Dynamic simulations were made to confirm load followability of low-purity oxygen producing equipment. Further, a test was made on starting time of oxygen producing equipment. As a result of the simulation, favorable load followability was confirmed except for some of the process. The width of variation of the product oxygen purity was {plus_minus} 0.7% at maximum. In the element test on oxygen combustion systems, an experiment on the oxygen combustion using pulverized coal was conducted to study heat collection characteristics of furnace and response to multi-kind of coal. A study of balance of S content, experiments on characteristics of crushing/transporting pulverized coal, etc. were added. There were seen no peculiar differences in CO2 transport and air transport. 216 figs., 31 tabs.

  20. Next-generation coal utilization technology development study. Environmentally-friendly coal combustion technology; topping cycles; Sekitan riyo jisedai gijutsu kaihatsu chosa. Kankyo chowagata sekitan nensho gijutsu bun`ya (topping nensho gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    As a realistic measure to reduce environmental pollutants emitted from coal-fueled boilers, a developmental study was conducted of high-efficient combustion systems. In fiscal 1994, four types of topping cycles which are different in system structure and gasifier type were selected, and topping cycles assuming a 300MW-class power plant were trially designed. Further, an evaluation of adaptability of these systems was made, and an selection of the optimum system for the early development was made among the systems. As a result, the evaluation was obtained that `a system using air blown gasifier` is most suitable for conducting the next-stage research. In the element test on the topping combustion technology, collection was made of data of desulfurization activity, desulfurization oxidation mechanism and alkali metal behavior at the laboratory level, data of temperatures and gas concentration distribution in coal gasification, data of simulation of the gasifier reaction, and the other data. 262 figs., 66 tabs.

  1. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium activity in its 2nd year (Development of 6-axis Hale machining system); 1999 nendo 6 jiku koseido hale kako system no kaihatsu seika hokokusho. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    To enhance precision in the machining of complicated shapes and to save labor during the finishing process, research and development is carried out about a Hale machining system based on machining with a non-rotating tool. A tentatively constructed 6-axis Hale machine is tested, and then the intended level of surface coarseness is attained. In relation with machining technologies, a Hale machining tool is modified and provided with a diamond-like carbon coating, and then it is found that this will prolong the tool life. An instrument is developed which measures and evaluates the 6-axis Hale machine operating locus. In relation with CAD/CAM (computer-aided design/computer-aided manufacturing), propositions over the draft for the ISO14649 international standard involving CAM/NC (numerical control) are collected and put together. As for 5-axis machining using the conventional ball-posed end mill, it is concluded that it will be feasible. In relation with NC, an NC unit for the tentatively constructed 6-axis Hale machine is completed, and is evaluated in an actual operation test aboard a real machine. (NEDO)

  2. FY 1998 Report on development project of structural residence of the next generation. Attachment 4. Frame analysis system manual; 1998 nendo jisedai kozo jutaku kaihatsu jigyo shiryohen. 4. Kako kaiseki system manual

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Attachment 4 of the FY 1998 report on development project of structural residence of the next generation describes the frame analysis system manual. NAPISOS is a program for analyzing static and dynamic responses of three-dimensional structures. The dynamic response is calculated by numerical integration in the time region. Dynamic load can handle dynamic exciting force, uniform seismic input and forced displacement at a node, and analyze linear elasticity and non-linear properties. The static load can handle nodal force, static seismic coefficient and forced displacement at a node, and analyze linear elasticity and non-linear properties. The static analysis also can perform analysis based on the time history response displacement method as the special case. The program implementation procedures fall into 4 general steps; first: inputting/processing of structural data, second: eigen value analysis or equivalent nodal force calculation, third: response calculation by direct integration, preparation of equivalent damping matrix or pre-stress analysis, and fourth: outputting the results. The input data related to control, structure and load are also described. (NEDO)

  3. Research and development of superhigh-technological processing systems in fiscal 989 (1.2). Development of devices for highly processing power generating facility parts (1.2.3); Chosentan kako system no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1988-03-01

    Described herein are the results of the research and development project for developing superhigh-technological processing systems, and devices for highly processing power generating facility parts.The R and D project for the superhigh-technological processing systems involves short-wavelength exima lasers for the techniques to expand their serviceability and improve their qualities; highly focused, wide-band energy ion beams for gas-phase focused ion beams and large-capacity cluster ion beams; superprecision machining for investigations on superprecision machining elements; techniques for forming and laminating thin films; high-speed surface modification of the stock materials; supporting techniques; and total systems. The R and D for the devices for highly processing power generating facility parts include investigations on the techniques for expanding serviceability of high-output exima lasers serving repeatedly for extended periods, and the techniques allowing the devices serviceable repeatedly for extended periods. The other R and D items include the techniques for light-resistant, high-strength elements, large-current ion beams, and reshaping by exima laser beams. (NEDO)

  4. Fiscal 1999 report on basic research for promotion of joint implementation programs. Energy saving project for Jingling Petrochemical Corp. Nanjing Refinery; 1999 nendo Jingling sekiyu kako koji Nanjing seiyusho shoene project chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    A survey is conducted for the above named plant under an energy saving project expected to link to the clean development mechanism (CDM) of COP3 (Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change). Studies are conducted about the refurbishment of the existing power recovering facilities in the wake of a plan for enhancing FCC (fluid catalytic cracker) processing capability and about power recovery from unused exhaust gas from the RFCC (residual fluid catalytic cracker) second catalyst regeneration tower. A modification plan was drafted and rough designs were prepared therefor, and it was found that power recovery from RFCC would be technologically and economically unfeasible because of the high temperature and extremely small quantity of the recoverable gas. It was then concluded that the plan be abandoned. Thanks to the refurbishment of the existing power recovering facilities to go out of service under the new operating conditions after FCC facility modification and to the installation of a new exhaust gas processor for air pollution prevention, there will be 10.6MW to be recovered for a reduction in fuel for in-house power generation. The consequential reduction in energy consumption will result in a CO2 reduction of 70,000 tons/year. Though China has not yet ratified the COP3 protocol, it is hoped that it will consider emission tradings and participate in the project when designated as a CDM country. (NEDO)

  5. Evaluation report on research and development of an ultra-advanced processing system. Sections 1 and 2; Chosentan kako system no kenkyu kaihatsu ni kansuru hyoka hokokusho. 1 and 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-08-01

    The ultra-advanced processing system is intended to develop an ultra-advanced processing device technology and an ultra-advanced processing technology. These technologies are indispensable to create such new processing technologies as ultra-precision and ultra-micro processing, and ultra high-grade surface modification processing, which have been impossible by the processing technologies having been available to date. It is also intended to develop a measuring and evaluating technology to support the above technologies. The intended system makes it possible to produce 21st century electronic components and ultra-high grade environment resistant materials. In order to achieve these goals, research and development has been performed on the excited beam technologies such as large output excimer laser and high-density ion beams, the ultra-precision machining device technology, the ultra-advanced processing technology using the above technologies, and the measuring and evaluating technology to assure the reliability of these technologies as the fundamental technologies. This project has begun in fiscal 1986, where fiscal 1987 has achieved development of component technologies related to the large output excimer laser and high-density ion beams, the ultra-precision machining device technology, the ultra-advanced processing technology using the above technologies, and the measuring and evaluating technology, and completed the device technology, having achieved the final target. (NEDO)

  6. FY 1999 report on the basic survey of the promotion of Joint Implementation, etc. Beijing Yanshan Petrochemical Co./cogeneration; 1999 nendo Beijing Yanshan sekiyu kako yugen koji netsu heikyu fukugo hatsuden chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For a combination with COP3 Clean Development Mechanism (CDM), the paper reported the FY 1999 survey of the cogeneration project of Beijing Yanshan Petrochemical Co. The existing two heavy oil fueled boilers (steam output: 240t/h) are dismantled, and two gas turbines and two waste heat boilers (steam output: 241t/h, electricity output: 136.9MW) are installed. The energy conservation effect is approximately 0.91 million tons/year of crude oil. The effect of reduction in greenhouse gas emissions is CO2 2.83 million tons/year. A plan on system interconnection, distribution, electricity, instrumentation control was drawn up. The construction term is planned to be about two and a half years. The initial investment amount is 700 million yuan {+-} 100 million yuan. The expense vs. energy conservation effect was calculated as 98t (crude oil conversion)/year/million yen, and the expense vs. greenhouse gas emission reduction effect 302t-CO2/year/million yen. Concerning the profitability, the generating cost was 0.4 yuan/kWh which dropped from the selling power cost of the Yanshan area, 0.45 yuan/kWh. As candidates of the natural gas fueled cogeneration, there are possibilities of 10 sites and 550MW scale only in the Beijing area. (NEDO)

  7. FY 1998 annual summary report on 6-axis, high-precision non-rotating machining systems (first year); 1998 nendo 6 jiku koseido heru kako system no kaihatsu seika hokokusho. Daiichinendo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This R and D program is aimed at development of high-precision systems, based on non-rotating machining, in order to improve precision of machining of curved surfaces, e.g., mold, and members of complex shapes, e.g., those for aircraft. For non-rotating machining of curved surfaces, it is necessary to continuously control attitude and sending speed of the tool, and hence to simultaneously control 6 axes of a high-speed, high-precision tool machine. New techniques, e.g., high-precision non-rotating machining, 6-axis CAM/CAE systems and high-speed, high-precision NC systems, are being developed, in order to realize the above objectives. The total systems combining these techniques are also being developed. The 6-axis, high-precision, non-rotating tool machine will be made on a trial basis, to demonstrate its practicality. The major FY 1998 results are development of a non-rotating machining tool for deep grooves (under the theme of machining techniques), development of software for cutter path generation for 6-axis non-rotating machining to confirm its validity by the tests with a commercial machine (CAD/CAM), and modification of NC for early-stage cutting tests (NC). (NEDO)

  8. FY 1992 research and development project for large-scale industrial technologies. Report on results of R and D of superhigh technological machining systems; 1992 nendo chosentan kako system no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    Described herein are the FY 1992 results of the R and D project aimed at establishment of the technologies for development of, e.g., machine and electronic device members of superhigh precision and high functions by processing and superhigh-precision machining aided by excited beams. The elementary researches on superhigh-precision machining achieve the given targets for precision stability of the feed positioning device. The researches on development of high-precision rotating devices, on a trial basis, are directed to improvement of rotational precision of pneumatic static pressure bearings and magnetism correction/controlling circuits, increasing speed and precision of 3-point type rotational precision measurement methods, and development of rotation-driving motors, achieving rotational precision of 0.015{mu}m at 2000rpm. The researches on the surface modification technologies aided by ion beams involve experiments for production of crystalline Si films and thin-film transistors of the Si films, using the surface-modified portion of a large-size glass substrate. The researches on superhigh-technological machining standard measurement involve development of length-measuring systems aided by a dye laser, achieving a precision of {+-} 10nm or less in a 100mm measurement range. (NEDO)

  9. Specified international joint research. Report for fiscal 1997 on the result of `Development of Machining Supporting System`; Kokusai tokutei kyodo kenkyu. `Kikai kako shien system no kaihatsu` 1997 nendo seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    On the basis of information obtained from actually performed designing of machines with the aid of computers, researches are conducted for the development of a system that automatically designs required machine tools, machining procedures, machining conditions, and tool paths. The research and development efforts made in fiscal 1997 are enumerated below. In the development of man-machine interfaces, one that integrates a machining procedure designing system, machining condition designing system, and a tool path designing system, all of which are subsystems belonging in a machining supporting system, is developed. In a system evaluation performed through actual machining, an interface between CAD (Computer-Aided Design) technology and a machining supporting system is evaluated, when machining is actually performed for experimentation in an environment in which a machining procedure designing system, machining condition designing system, tool path designing system, and CNC (Computerized Numerical Control) technology collaborate as integrated. As the result, the performance expected to be achieved at the beginning is realized. Two scientists of Russian Academy of Sciences are invited, and researches are conducted concerning knowledge processing technology. 20 refs., 21 figs., 10 tabs.

  10. WE-NET. Substask 4. Development of hydrogen production technologies; 1998 nendo suiso riyo kokusai clean energy system gijutsu (WE-NET). 4. Suiso seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Under the hydrogen-utilizing international clean energy system technology project WE-NET (World Energy NET Work), researches were conducted aiming at the establishment of a hydrogen production technology through electrolysis of polymer electrolyte solution. In fiscal 1998, element technologies were developed for the development of high-efficiency/large-capacity water electrolyzing plants using electrodeless deposition and hot pressing, research and investigation of optimum operating conditions were conducted, and a service plant conceptual design and a polymer electrolytic membrane were developed. In addition, literature was searched for the current state of ion exchange membranes and water electrolysis, both indispensable for the hydrogen production technology discussed in this paper. In the field of lamination of large cells (electrode surface:2500cm{sup 2}), an excellent energy efficiency level exceeding 90% set as the target for a large laminated cell performance test was achieved - 92.6% by electrodeless deposition and 94.4% by hot pressing. As for polymer membranes capable of resisting high temperatures, a membrane with an ionic conductivity of 0.066S/cm at 200 degrees C was newly developed. (NEDO)

  11. Survey of the trend of technical development and industrial policies in Asian countries; Asia shokoku ni okeru gijutsu kaihatsu no doko to sangyo gijutsu seisaku ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    A sharp rise in industrial productivity in Asia countries indicates a rising level of R and D technology. Since Japan has not clearly grasped the R and D ability in these countries, it has not given appropriate personnel/material R and D support to them. Therefore, for the purpose of exactly grasping the R and D ability of Asian countries (Korea, Taiwan, the Philippines, Indonesia and India) and studying an effective and appropriate method for R and D cooperation, a survey was conducted of R and D potentials in Asia and R and D support policies of the countries. As a result of the survey, the following are taken up as items to be considered: promotion of exchanges between Tsukuba, etc. in Japan and research/university towns and science parks being constructed in lots of countries, participation of private companies in high-tech joint work in cooperation with Japan, sending information from Japan using internet, etc. and exact grasp of needs at partner side, cooperation given to new comers without asking for research results (use of OB researchers, etc.) 25 refs., 39 figs., 59 tabs.

  12. Report on technological trend survey in fiscal 2000. Survey on bio-technology development strategy; 2000 nendo gijutsu doko nado chosa hokokusho. Bio technology gijutsu kaihatsu senryaku chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Survey and research have been performed on bio-technologies as to their seeds of technological development projects to be worked on by the government from the viewpoint of industrial utilization technologies. In the survey on the trends of research and development and technological development on human-genomes, the survey has been done on the status of execution in the Millennium Genome Project, and how the works related to human-genomes are done at the bio-related government based research organizations and the private sector research organizations. Trends related to the human-genome research in overseas countries were also surveyed. With regard to the future prospect of research and development in the post genome age, discussions were given on the result of the questionnaire survey on opinion leaders in the industrial, governmental and academic areas. In discussing the viewpoint of the industrial utilization technologies related to human genomes, candidates assumed usable in the genome related application fields were discussed, and a basic framework of a technological map was prepared. Based on the results thereof, the technological development areas anticipated to be important in the future were extracted, and the technological development themes were discussed. (NEDO)

  13. Survey of the situation of technology succession. Databases of articles including in industrial technology museums; Gijutsu keisho jokyo chosa. Sangyo gijutsu hakubutsukan shuzohin D.B. hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    To promote the succession of history of and the creative use of industrial science technologies, the paper made lists and databases of the articles of industrial technology museums and material halls in Japan. Record/preservation and collection/systematization of history of the industrial technology is useful for forming bases necessary for promotion of future research/development and international contribution. Museums and material halls are the fields for making comprehensive and practical activities. The data were made as one of the basic databases as the first step for promoting activities for examining the technical succession situation in a long term range continuously and systematically. In the classification of the data, the energy relation was divided into electric power, nuclear power, oil, coal, gas and energy in general. Others were classified into metal/mine, electricity/electronics/communication, chemistry/food, ship building/heavy machinery, printing/precision instrument, and textile/spinning. Moreover, the traffic relation was classified into railroad, automobiles/two-wheeled vehicles, airline/space, and ships. Items were also set of life relation, civil engineering/architecture, and general. The total number of the museums for the survey reached 208.

  14. Intelligent social infrastructure technology. Infrastructure technology support ultra-reliable society; Chiteki shakai kiban kogaku gijutsu. Choanshin shakai wo sasaeru kiban gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    This survey was conducted to construct the core of intelligent social infrastructure technology (ISIT), and to investigate its practical application to industries and society. For realizing the ultra-safe and ultra-reliable society, it is necessary to develop the ISIT which can integrate various social infrastructures, such as architecture, city, energy, and lifeline systems required for living. For the systematization of cities, it is necessary to process and control the intelligent information by holding integrated and transverse information in common, as to logistics, lifeline, communication, monitoring, and control. For the communication engineering, the centralized systems are acceleratingly to be converted into the distributed network systems. For the mechanical engineering, intelligent control and robot technology are required. For the architectural engineering, a concept exceeding the conventional antiseismic structure idea is investigated. It is necessary to develop a new information technology providing an intelligent social infrastructures by merging the information networks and the physical world seamlessly. Necessity of ISIT is large for constructing the intelligent and ultra-reliable society consisting of these integrated and organized networks. 84 refs., 68 figs., 6 tabs.

  15. FY 2000 report on the basic survey to promote Joint Implementation, etc. Feasibility study of the effective utilization of by-product high-sulfur concentration petroleum coke at Fujian Petrochemical Co. Ltd., Fujian Province, China; 2000 nendo kyodo jisshi nado suishin kiso chosa hokokusho. Chugoku sekiyu kako shudan koji fukusei ren'yu kako yugen koji Fujian koio nodo sekiyu cokes no yuko riyo ni kansuru F/S chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    For the purpose of conserving energy and reducing greenhouse effect gas emission, an investigational study was conducted for the project on the effective utilization of high-sulfur petroleum coke at Fujian Petrochemical Co., Fujian Province, China. In the project, IGCC (integrated gasification combined cycle) power generation facilities are introduced to the refinery of Fujian Petrochemical Co. By gasifying the residues produced from the refinery as raw material, the gas clean the same as natural gas is produced and is used as power generation use fuel. As a result of the study, the energy conservation amount was 94,300 toe/y, and was 1,414,500 toe in cumulative amount during 15 years. Further, the amount of greenhouse effect gas reduction was 291,600 t-CO2/y, and was 4,374,000 t-CO2 in cumulative amount during 15 years. The construction cost of the project is approximately 29.7 billion yen. The annual profit to be obtained from the project is approximately 8.66 billion yen, which is indicated by difference between before and after the implementation of the project. The calculated years required for return of investment were 3.4. (NEDO)

  16. Relação entre qualidade do sono e funções cognitivas em pacientes com doença de Parkinson

    DEFF Research Database (Denmark)

    Brito dos Santos, Altair; Campos, Shirley L.; Ribeiro, Sidarta T. G.

    2013-01-01

    Here, we describe the clinical characteristics of patients with Parkinson's disease, as well as study the relationship between sleep quality and cognitive functions. This is a descriptive-analytical cross-sectional study in which we evaluate episodes of depression and anxiety, as well as the state...... of general health, disease progression, sleepiness, sleep quality and cognitive functions of 24 patients with Parkinson's disease without dementia. We found a moderate inverse correlation between memory and sleep disturbances, and a moderate inverse correlation of memory and visuospatial function. We also...

  17. Development and simulation of the air-jack for emergency like a huge disaster; Kyujoyo eajakki no kaihatsu to sono simyureshon

    Energy Technology Data Exchange (ETDEWEB)

    Katsuyama, Kunihisa.; Ogata, Yuji.; Wada, Yuji. [National Institute for Resources and Environment, Tsukuba (Japan); Hashizume, Kiyoshi.; Nishida, Kenjiro. [Nippon Kayaku Corp., Tokyo (Japan)

    1999-02-28

    When a disaster is so huge like Kobe earthquake, every energy line is killed. Even if we want to help the sufferers, we have no energy to move machines to help them. As collapsed houses are very heavy, we need machines to remove collapsed stuff. Explosives include a lot of energy in themselves. So, an air-jack which has explosives inside was developed to remove collapsed stuff on suffered people. A simple air-jack was made and tested. One concrete block, 50cm x 50cm x 50cm, was lifted by the simple air-jack. A simulation of lifting the concrete block was carried out with a programme ANSYS on the super computer. (author)

  18. Effects of mechanical stimulating treatment on self-organization phenomena of materials; Kikaiteki reiki shori. Zairyo no jiko soshikia gensho ni oyobosu sono koka

    Energy Technology Data Exchange (ETDEWEB)

    Hida, M. [Okayama University, Okayama (Japan). Faculty of Mechanical Engineering

    1999-03-31

    The atoms and atom clusters around dislocation cores in crystals or surface layer deformed by mechanical energy are locally excited so as to give rise some chemical reactions and to self-organize their products into a kind of Spatial-Temporal Pattern Formation as a dissipative structure. A famous coupling phenomenon between mechanical and chemical process in solid materials must have been mechanical alloing. This report explains that various mechano-chemical treatments are powerfull method for entraining the solid system into non-equilibrium states and interesting phenomena stimulated by the mechanical self-catalysis reaction causing self-organization. (author)

  19. Hydrogen storage alloy electrode for metal-hydride alkaline storage battery its production method; Kinzoku-suisokabutsu aruakri chikudenchiyo no suiso kyuzo gokin denkyoku oyobi sono seizo hoho

    Energy Technology Data Exchange (ETDEWEB)

    Matsuura, Y.; Nogami, K.; Kimoto, M.; Higashiyama, N.; Kuroda, Y.; Yonezu, I.; Nishio, K.

    1997-03-28

    Recently, it is proposed to employ the hydrogen storage alloy produced by means of rapidly solidifying single roll method, i.e., a method of projecting the molten alloy onto the surface of roll rotating in high speed as for the negative electrode material of the metal hydride alkaline battery. However, the hydrogen storage alloy produced by the single roll method has a heterogeneous grain size. So that the utilization of the hydrogen storage alloy is limited. This invention solves the problem. The rare earth-nickel system hydrogen storage alloy ribbon with average thickness of 0.08 - 0.35 mm is produced by means of single roll method. The grain size of the alloy is over 0.2 micrometer on roll surface side and below 20 micrometers on open surface side. The above said alloy is ground to average particle size of 25 - 70 micrometers to be used for the hydrogen absorbent. In this way, the metal hydride alkaline battery with excellent high rate discharge characteristic at the initial stage of charge-discharge cycle, excellent charge-discharge cycle characteristic, and excellent inner pressure characteristic can be produced. 2 figs., 5 tabs.

  20. Hydrogen storage alloy for battery, manufacturing method and nickel-hydorogen secondary battery; Denchiyo suiso kyuzo gokin, sono seizo hoho oyobi nikkerusuiso niji denchi

    Energy Technology Data Exchange (ETDEWEB)

    Inaba, T.; Sawa, T.; Inada, S.; Kawashima, F.; Sato, N.; Sakamoto, T.; Okamura, M.; Arai, T.; Hasimoto, K.

    1997-04-08

    The invention relates to a hydrogen storage alloy for a battery which has a high electrode capacity, and particularly can realize a long battery life. The hydrogen storage alloy of the LaNi5 type with the general formula: ABx is used in the invention. Here, A comprises La, Ce, Pr and Nd, and La and Nd in A account for 70 to 90 wt % and less than 5 wt %, respectively; B is at least one of the elements selected from Ni, Co, Fe, Cr, Mn, Cu, Al, Ga, Si, Ge, Bi, Sn, In, P, V, Nb, Ta, Mo and W; x shows the atomic ratio in the range, 4.5{<=}x{<=}5.6. Since rare earth elements constituting the alloy, and types and compositions of the elements substituting Ni are properly determined, the hydrogen storage alloy for a battery with excellent hydrogen storage characteristics and corrosion resistance is obtained. When the alloy is used as an anode material, the battery capacity is expanded, the alloy pulverization and deterioration are prevented. 3 figs., 1 tab.

  1. Hydrogen storage alloy electrode of metal hydride alkaline storage battery and its production method; Kinzoku-suisokabutsu arukari chikudenchiyo no suiso kyuzo gokin denkyoku oyobi sono seizo hoho

    Energy Technology Data Exchange (ETDEWEB)

    Matsuura, Y.; Nogami, K.; Kimoto, M.; Higashiyama, N.; Kuroda, Y.; Yonezu, I.; Nishio, K.

    1997-03-28

    Recently, a proposal was made of employing the hydrogen storage alloy produced by means f rapidly solidifying single roll method, i.e., a method of projecting the molten alloy onto the surface of roll rotating in high speed as for the negative electrode material of the metal hydride alkaline battery. However, the hydrogen storage alloy produced by the single roll method has a heterogeneous grain size. This invention solves the problem. The Mm{center_dot}Ni{center_dot}Co{center_dot}Al{center_dot}Mn alloy ribbon with average thickness of 0.08 - 0.35 mm is produced by means of single roll method. The grain size of the alloy is over 0.2 micrometer on roll surface side and below 18 micrometers on open surface side. The alloy is ground to be used for the hydrogen absorbent. The general formula of this alloy is MmR(x) (Mm = mischmetal, R = Ni, Co, Al, Mn). In this way, the metal hydride alkaline battery with excellent high rate discharge characteristic at the initial stage of charge-discharge cycle, excellent charge-discharge cycle characteristic, and excellent inner pressure characteristic can be produced. 2 figs., 5 tabs.

  2. Pain associated with liver biopsies through percutaneous approach under sono-graphic guidance-a cross sectional pilot study in a tertiary care hospital

    International Nuclear Information System (INIS)

    Baig, M.A.

    2015-01-01

    Pain is one of the most common and feared complication of percutaneous liver biopsy under local anaesthesia using sonographic guidance. This observational study was set to judge the intensity of pain felt by adult patients presenting for percutaneous liver biopsy with known/suspected underlying hepatic pathology. Methods: This observational cross sectional study which was piloted on 10% of the original sample size was conducted at Aga Khan University Hospital, Karachi. Study population was the adult patients coming for percutaneous liver biopsy at the Department of Radiology. Descriptive statistics were run, data was checked for normality. Means and Standard deviations were done for continuous variables and where data was skewed, median with inter quartile range was computed. Later data was clumped in categories, frequency and percentages were reported for categorical variables. Graphical representation of data was done. Results: A total of 50 patients were recruited. Minimum pain reported on visual analogue scale (VAS) was 0 and maximum as 4.30% of patients rated 3 and similarly 30% of the people rated 4 on the VAS. Mean pain experienced was 2.7 ± 1.11 and a median of 3 on VAS. This indicates that a minority of patients in our survey had a complaint of mild pain during the procedure. Conclusions: Percutaneous liver biopsy is a very safe procedure and minimal pain was felt by a minority of patients whereas the rest showed satisfaction from the procedure with no post procedural complaints. (author)

  3. Deregulation for the electric power industry in Japan and the outlook; Nippon no denryoku sangyo no kisei kanwa to sono tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Matsuo, N. [The Institute of Energy Economics, Tokyo (Japan)

    1996-10-01

    The future direction and outlook of the electric power industry in Japan was described in a new systematical framework based on the amendment to the Electric Utility Industry Law. When viewing the deregulation system from a viewpoint of `induction of competition,` comparative assessment may mean competition introduced among electric power companies; establishment of the competitive bidding system by the whole supply business may mean competition introduced into the power generation sector; establishment of the specified electric utility industry system may mean competition introduced into the retailing sector. Further, a system to notify the authority of the price list, rationalization of safety rules, deregulation on the entry into another business, etc. can be interpreted as the spread of a width of discretion on business management. An increase in economic efficiency by cost reduction is expected as an influence of this deregulation, but the subject is how well the deregulation can balance with publicity and social responsibility. Relating to the entry of IPP, there is some anxiety: small scale power sources have high failure rates and difficulty in load frequency control. Moreover, it affects the public benefit in a sense of the apparently worsening air pollution. 12 figs., 1 tab.

  4. Fast sono assisted ferrofluid mediated silver super - Adsorption over magnesium ferrite-copper sulfide chalcogenide with the aid of multivariate optimization.

    Science.gov (United States)

    Rezaei, Ali Asghar; Hossein Beyki, Mostafa; Shemirani, Farzaneh

    2017-07-01

    This research focuses on the development of a fast ultrasonic assisted ferrofluid mediated methodology to obtain the optimum conditions for silver adsorption from aqueous solutions. For this purpose magnesium ferrite-copper sulfide chalcogenide was synthesized and employed as an efficient nanosorbent. The sorbent was characterized with energy-dispersive X-ray spectroscopy (EDX), field emission scanning electron microscopy (FE-SEM), X-ray powder diffraction (XRD) and vibrational sample magnetometry (VSM) techniques. For obtaining the optimal operating conditions of silver adsorption, response surface methodology (RSM) was used. Tests were performed by Box-Behnken design (BBD). The value of optimum conditions for silver adsorption include pH=2.5, adsorbent dosage=10.0mg, sonicating time=1min and ionic strength=2.2%. According optimum conditions, percentage of removal should be 99.34%. With replication of similar experiment (n=6) average percentage of 100±0.95% was obtained for Ag + adsorption which shows good agreement between predicted and experimental results. Silver ion adsorption follow Langmuir model with maximum sorption capacity of 2113mgg -1 . Ultrasonic power helped to prepare ferrofluid and demonstrated that had an important role in better dispersing of it in solution and efficient adsorption of analyte. Copyright © 2017 Elsevier B.V. All rights reserved.

  5. Perché i generi alimentari sono meno costosi nei paesi (europei ricchi? (Why Is Food Cheaper in Rich [European] Countries?

    Directory of Open Access Journals (Sweden)

    Alessandro Podkaminer

    2012-04-01

    Full Text Available Relative to non-food items, food tends to be cheaper in rich, as compared with poor European countries. This tendency cannot be explained in terms of cost developments or foreign-trade considerations. A positive explanation proposed focuses on demand-income-supply interaction. An analysis of a cross-country price-augmented modification of Engel's Law, econometrically specified, indicates that the relative price of food is related positively to the supply of food items and negatively to that of non-food items. This finding is consistent with "agricultural price scissors", and also casts a different light on the nature of economic development and structural change.  JEL Codes: D12, L11, L66, Q11Keywords: Food, Prices

  6. Perché i generi alimentari sono meno costosi nei paesi (europei ricchi? (Why Is Food Cheaper in Rich [European] Countries?

    Directory of Open Access Journals (Sweden)

    Alessandro Podkaminer

    2004-09-01

    Full Text Available Relative to non-food items, food tends to be cheaper in rich, as compared with poor European countries. This tendency cannot be explained in terms of cost developments or foreign-trade considerations. A positive explanation proposed focuses on demand-income-supply interaction. An analysis of a cross-country price-augmented modification of Engel's Law, econometrically specified, indicates that the relative price of food is related positively to the supply of food items and negatively to that of non-food items. This finding is consistent with "agricultural price scissors", and also casts a different light on the nature of economic development and structural change.

  7. Quantitative determination of flame color and its determining factor in hydrocarbon/air laminar diffusion flames; Soryu kakusan kaen ni okeru kaenshoku no teiryoka to sono kettei yoin

    Energy Technology Data Exchange (ETDEWEB)

    Tatsuta, S. [Asahikawa National College of Technology, Hokkaido (Japan); Fujita, O.; Ito, K. [Hokkaido University, Sapporo (Japan)

    1998-08-25

    The color of laminar diffusion flames burning propane, methane and ethylene was determined by chromaticity coordinates (x, y) defined by the CIE 1931 standard colorimetric system. The differences in flame color attributed to burning condition and fuel types were examined with a colorimeter. Spectroscopic measurement and numerical analysis using a simplified radiation model were also carried out to discuss the determining factors of the flame color. The relation between x and y measured on the central axis of the flames was expressed in the experimental equations. The (x, y) in the luminous region plotted on a chromaticity diagram changed along Planckian locus with the burning conditions. The contribution of the thermal radiation of soot particles and the chemiluminescence to the flame color was successfully evaluated by introducing the concept of additive mixture of color stimuli. The (x, y) profiles from the numerical analysis agreed well with the experimental results. 17 refs., 14 figs., 1 tab.

  8. „Perché sono tutti cattivi“: Strategien der Anziehung und Abstoßung in ‚Gomorra – la serie‘

    Directory of Open Access Journals (Sweden)

    Tanja Weber

    2015-05-01

    Full Text Available Der Pay-TV Sender Sky Italia sendet neben Sport vor allem US-amerikanische Fernsehserien, die als Quality TV bezeichnet werden. Inzwischen produziert er auch eigene Serien, die international konkurrenzfähig sein sollen. Dabei setzt er auch bei seiner dritten Produktion Gomorra – La serie auf transmediales Erzählen als Risikominimierungsstrategie, das heißt, der Serie gehen ein erfolgreiches Buch und ein Film voraus. Gomorra – La serie setzt sich darüber hinaus mit der italienischen Tradition, das organisierte Verbrechen darzustellen, auseinander. Dies schlägt sich vor allem in der Figurenzeichnung nieder und führt zu außergewöhnlichen Strategien der Anziehung und Abstoßung.

  9. Study of the heat island phenomenon in large cities and the measures to prevent it; Daitoshi ni okeru heat island gensho to sono taisaku ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Kawasaki, T.; Ishitani, H.; Matsuhashi, T. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering

    1997-01-30

    The paper made an analysis of the heat island phenomenon in the Kanto area using 3-D numerical analysis models and a study on the effectiveness of the measures to prevent it. The models are composed of advection/diffusion models of heat/steam in the wind-velocity field and atmospheric air, heat diffusion models in the underground and undersea, and heat balance models on the ground surface and sea surface. In the calculation, a simulation was conducted of the case of taking the following three measures: the case where the exhaust heat was reduced 30% in the assumed typical day of summer; the case where the heat volume of buildings/trunk roads was reduced; the case where the evaporation efficiency of buildings/trunk roads was raised. The result of the study was as follows: The reduction effect of the exhaust heat is totally large, but precisely observing, some meshes contrarily showed rises in temperature in the suburbs. Also in the case of reducing the heat volume, the same phenomenon occurred, but the effect was large in the center of a city. It was found that the effect was unexpectedly large in the case of increasing the evaporation efficiency. 7 refs., 14 figs., 2 tabs.

  10. Transient tire force and its modeling. Part 2. Camber angle input; Katoteki tire hasseiryoku to sono modeling. 2. Camber kaku nyuryoku

    Energy Technology Data Exchange (ETDEWEB)

    Higuchi, A [Toyota Motor Corp., Aichi (Japan); Pacejka, H

    1997-10-01

    The objective of this study is to understand the transient force and moment characteristics of tires involving side slip and camber and to develop the tire model which is capable of describing those characteristics. Some particular characteristics are found such as non-lagging part in side force response and an apparent peak in aligning torque response to a stepwise camber change. Some aspects on the analogy of turn slip to camber are also discussed. The tire model combines a dynamic part based on the physical aspect using the relaxation length concept, and a steady state part. In combined situations of side slip and camber, an estimation method to determine the transient slip quantities is introduced. 12 refs., 14 figs.

  11. Alterações do sono e prevalência de depressão em pacientes lúpicos em uso de pulsoterapia com ciclofosfamida

    OpenAIRE

    Mesquita, Rafael Carvalho; Souza, Lívia Noronha Coelho de; Bruin, Pedro Felipe Carvalhedo de; Carvalho, Raquel Ribeiro; Medeiros, Marta Maria das Chagas; Rocha, Francisco Airton Castro da; Bruin, Veralice Meireles Sales de

    2007-01-01

    BACKGROUND: Pulse i.v. cyclophosphamide is a therapeutic option in severe forms of systemic lupus erythematosus (SLE). However, the overall toxicity and risk profile are yet to be adequately defined. OBJECTIVE: To evaluate the occurrence of sleep disturbances in SLE patients subjected to i.v. cyclophosphamide. METHODS: We studied thirty consecutive SLE patients (27 female) age range 14 to 53 years (mean 30.5 ± 10 years) that received i.v. cyclophosphamide (mg) (mean 948.27 ± 221...

  12. System approach on solar hydrogen generation and the gas utilization; Taiyo energy ni yoru suiso no seisei oyobi sono riyo system ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Fujii, I; Hirooka, N; Deguchi, Y; Narita, D [Meiji University, Tokyo (Japan)

    1997-11-25

    An apparatus is developed to establish a system which allows utilization of hydrogen safely and easily, and its applicability to a hydrogen system for domestic purposes is tested. The system converts solar energy by the photovoltaic cell unit into power, which is used to generate hydrogen by electrolysis of water at the hydrogen generator, stores hydrogen in a metal hydride , and sends stored hydrogen to the burner and fuel cell units. It is found that a hydrogen occluding alloy of LaNi4.8Al0.2 stores hydrogen to approximately 80% when cooled to 20 to 25degC, and releases it to 10% when heated to 40degC. The fuel cell uses a solid polymer as the electrolyte. The hydrogen gas burner is a catalytic combustion burner with a Pt catalyst carried by expanded Ni-Al alloy. The optimum distance between the burner and object to be heated is 22mm. High safety and fabrication simplicity are confirmed for use for domestic purposes. The system characteristics will be further investigated. 4 refs., 8 figs.

  13. Avaliação da sonolência diurna e qualidade do sono em idosos e sua relação com a qualidade de vida

    Directory of Open Access Journals (Sweden)

    Anna Carolina Rocha Magalhães

    2018-02-01

    Full Text Available Objective: To evaluate daytime sleepiness and sleep quality in the elderly and their influence on quality of life. Methods: Quantitative, cross-sectional and descriptive research. For the evaluation of daytime sleepiness was used the Epworth Sleepiness Scale (ESS, to evaluate sleep quality, the Pittsburgh Sleep Quality Index (PSQI, and to assess the quality of life of the WHOQOL-BREF. For analysis and interpretation of the results, the elderly was divided into groups according to the classification of ESS and PSQI. Results: A total of 128 elderly patients were evaluated. When analyzing ESS, 24.2% of the elderly had a score equal to or greater than 11 points, which indicates Excessive Day Drowsiness (EDD. When the quality of sleep was evaluated, 69.6% of the elderly had a score higher than 5 in the PSQI, which indicates poor quality sleep. When comparing from the ESS, the group of elderly people who did not present EDD with the elderly classified with EDD, a significant difference was observed in the psychological domain of the WHOQOL-BREF, when comparing the elderly with PSQI, there was a significant difference for the physical and environmental domains. Conclusion: The occurrence of excessive daytime sleepiness and poor sleep quality can have an impact on quality of life.

  14. Changes in soil organisms by the application of sludge composits, and their effects. Odei taihirui no shiyo ni tomonau dojo seibutsu no henka to sono eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Niijima, K.; Fujita, K.; Ogawa, M. (Forestry and Forest Products Research Institute, Tsukuba (Japan))

    1993-08-31

    With an objective to utilize sewage sludge more effectively, composted sewage sludge has been applied to seed beds to investigate its effect on soil macrofauna and higher fungi, and its relativity with change in soil organisms, growth of young trees, and soil science. Forty-eight seedling sections, each 5 m [times] 5 m, were made on a seed bed which was applied with Tenryu sludge composts (polymer-based coagulant), several other kinds of sludge composts, fallen leaf composts, and cattle excrement composts at predetermined rates from zero to 20 kg. Each section was planted with 25 three-year-old nursery trees of a kind of oak, black pine, and cypress. As a result, the following findings were obtained: wet weight of larvae of Japanese gold beetles that attack tree roots has increased during the first and second years in the Tenryu sludge applied section, but no longer increased in the third year; the relationship between the other composts and soil macrofauna was not made clear; Scleroderma Cepa PERS, a mycorrhiza bacteria, has been generated in the oak planted section in the second, third and fourth years, with the second year particularly having generated it in a greater amount in proportion with the fertilizer application amount, but the fertilizer effect thereafter is not clear. 24 refs., 6 figs., 9 tabs.

  15. Mercury-free sono-electroanalytical detection of lead in human blood by use of bismuth-film-modified boron-doped diamond electrodes

    Energy Technology Data Exchange (ETDEWEB)

    Kruusma, Jaanus [Institute of Physical Chemistry, University of Tartu, Jakobi 2, 51013, Tartu (Estonia); Banks, Craig E.; Compton, Richard G. [Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, OX1 3QZ, Oxford (United Kingdom)

    2004-06-01

    We report the electroanalytical determination of lead by anodic stripping voltammetry at in-situ-formed, bismuth-film-modified, boron-doped diamond electrodes. Detection limits in 0.1 mol L{sup -1} nitric acid solution of 9.6x10{sup -8} mol L{sup -1} (0.2 ppb) and 1.1x10{sup -8} mol L{sup -1} (2.3 ppb) were obtained after 60 and 300 s deposition times, respectively. An acoustically assisted deposition procedure was also investigated and found to result in improved limits of detection of 2.6 x 10{sup -8} mol L{sup -1} (5.4 ppb) and 8.5 x 10{sup -10} mol L{sup -1} (0.18 ppb) for 60 and 300 s accumulation times, respectively. Furthermore, the sensitivity obtained under quiescent and insonated conditions increased from 5.5 (quiescent) to 76.7 A mol{sup -1} L (insonated) for 60 s accumulation and from 25.8 (quiescent) to 317.6 A mol{sup -1} L (insonated) for 300 s accumulation. Investigation of the use of ultrasound with diluted blood revealed detection limits of the order of 10{sup -8} mol L{sup -1} were achievable with excellent inter- and intra-reproducibility and sensitivity of 411.9 A mol{sup -1} L. For the first time, electroanalytical detection of lead in diluted blood is shown to be possible by use of insonated in-situ-formed bismuth-film-modified boron-doped diamond electrodes. This method is a rapid, sensitive, and non-toxic means of clinical sensing of lead in whole human blood. (orig.)

  16. Tragacanth nanocapsules containing Chamomile extract prepared through sono-assisted W/O/W microemulsion and UV cured on cotton fabric.

    Science.gov (United States)

    Ghayempour, Soraya; Montazer, Majid

    2017-08-15

    Encapsulation is the best method to protect the plant extracts against volatility and instability in the presence of air, light, moisture and high temperatures. Nevertheless, application of encapsulated plant extracts on the textiles requires a low-temperature and high rate processing to avoid from breaking or destroying of capsules. The present paper represents application of nanocapsules prepared by ultrasound irradiation assisted W/O/W microemulsion method on the cotton fabric through UV curing method. The surface and structure of nanocapsules and treated cotton fabric using FESEM and FT-IR indicated the spherical nanocapsules with size of 60-80nm stabilized on the fabric surface in a film layer feature. Also, the treated cotton fabric showed a good release behavior of 96h, a high stability against washing and rubbing tests and a relative good antimicrobial activity with 91, 89 and 94% reduction against S. aureus, E. coli and C. albicans, respectively. Copyright © 2017 Elsevier Ltd. All rights reserved.

  17. Development of multi-filter spectroradiometry; Filter hoshiki ni yoru bunka hosharyo no keisoku hoho to sono supekutoru no hyogen hoho ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Miyake, Y; Aoshima, T; Minoda, T; Kato, T; Kondo, S [Eiko Instruments Trading Co. Ltd., Tokyo (Japan)

    1996-10-27

    Described in this paper is a technique of solar radiation spectroradiometry in which high-resolution wavelength computation adds to a multi-filter method. The solar spectrum upon entering the atmosphere is scattered and absorbed by parameter-constituting elements such as gas, aerosol, cloud particles, etc., and its spectral contour is complicatedly deformed relative to wavelength. Taking advantage of the fact that the scattering and absorbing characteristics of some of the elements are constant relative to wavelength, a simple equation was constructed to enable high-resolution spectrum measurement wavelength-wise, and this compensates for the limit in measurable wavelength that the conventional multi-filter method suffers from. The new method discussed here is not so expensive as the grating method thanks to the employment of filters, is capable of determining spectral radiation quantities with a precision of {plus_minus}5%, and is reduced in terms of the capacity of memory for data storage. The new method enables data collection under various atmospheric conditions that the four seasons present, which the difficult-to-apply and expensive spectroradiometer fails. It is expected that this method will find its use in collecting basic data for the designing of photovoltaic power generation systems, in the study of photochemical reaction in agriculture, and in collecting basic data for daylight lighting. 1 ref., 6 figs., 2 tabs.

  18. Landslide (4). ; Landslide and water-geochemical investigation. part 1. Jisuberi. (4). ; Jisuberi to mizu-chikyu kagakuteki chosa. sono 1

    Energy Technology Data Exchange (ETDEWEB)

    Yoshioka, T [Kyoto Univ., Kyoto (Japan). Disaster Prevention Research Inst.

    1990-08-31

    Laying emphasis on the groundwater quality in landslided areas, origin of dissolved ions in the groundwater, characteristics of water quality at landslided areas, classification of groundwater mass, flow and flow direction of groundwater, relation between water quality and groundwater flow, composition of dissolved gases, isotopes, growing process of water quality, formation of clay minerals and water quality, etc. are described. In general, ions contained in the groundwater originate in rainwater and falling matter; human activity; volcanoes and hot mineral springs; rock and soil; etc. The problems with the quality of water in landslided areas are Na {sup +} and Ca {sup 2} as positive ions and HCO {sub 3} and SO {sub 4}{sup 2 {sup minus}} as negative ions. It can be understood that change in the chemical composition of the groundwater caused by the flow of the groundwater is closely related to the weathering of rocks. Examples of investigation on groundwater flow by chemical injection are introduced. The composition of gases dissolved in groundwater is as important as the dissolved components for the study of the origin and history of groundwater. 34 refs., 16 figs., 7 tabs.

  19. Application of thin-layer chromatography of fat and oil, fatty acid and mineral oil for science education. Yushi, shibosan, koyu no hakuso chromatography to sono kyozaiteki katsuyo

    Energy Technology Data Exchange (ETDEWEB)

    Kawabuchi, K [Ehime Univ., Ehime (Japan); Takechi, Y; Morimoto, M [Ehime (Japan)

    1990-08-20

    In this article, with regard to application of thin-layer chromatography of fat and oil, fatty acid and mineral oil for science education, a study was made mainly on quality finding of n-hexane extracts provided in the law of prevention of water pollution, and separation of hydrolysis products of fat and oil. As a result, the existance of fat and oil, fatty acid and mineral oil in the enviromental water and the hydrolysis process of fat and oil could experimentally be confirmed. This is considered to be useful for studying teaching material on fat and oil. This report deals with the reagents and device, and specifies standard solution, thin-layer plate, spread solvent, spread tank and thermostat, and states, for its operation, the method using enzyme for hydrolysis of fat and oil and the method using potassium hydroxide. It also contemplates on R {sub f} values of fat and oil, fatty acid and mineral oil, etc., as well as spread of fat and oil, oils contained in n-hexane extracts and hydrolysis products of fat and oil. 6 refs., 4 figs., 1 tab.

  20. Studies on sleep patterns and fatigue due to shift work and their work adaptability. Kotai sagyo ni yoru suimin dotai to hiro oyobi sono sagyo tekiosei no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Matsuoka, N.; Yokota, A. (Univ. of Occupational and Environmental Health, Kitakyushu (Japan). School of Medicine)

    1991-01-01

    Studies were made on sleep patterns and fatigue due to shift work and their work adaptability with respect to the following items: (1) With a nurse work system as the object, a survey of rectum temperature, heart rate and rhythm before and after a midnight shift, and sleep at rising in the morning using the OSA survey method; (2) To analyze actual conditions of cumulative fatigue felt by shift workers and fatigue factors, a survey on shift work history, overtime work time, work patterns, symptoms of cumulative fatigue, and and life satisfaction; (3) A survey on daytime sleep record maintained at working places of guards including those of middle or advanced age, and sleep as affected by a nap; (4) A method of improving complains of circadian rhythm disorders because of variations in sleep and emergence rhythms experienced by shift workers, and discussions of usability of light radiation; and (5) Establishment of a technique to indicate effects of psychological burdens and psychogenic stress on visual functions of shift workers using tensions in focal adjustment. 5 figs., 5 tabs.

  1. Efeito imediato e mediato da acupuntura no tratamento de pacientes portadores da Síndrome de Apnéia Obstrutiva do Sono

    OpenAIRE

    Sugai, Gisele Cristina Machado [UNIFESP

    2009-01-01

    STUDY OBJECTIVES: 1 - To investigate the immediate (single session) and mediate (ten sessions) effect of acupuncture over the sleep pattern of patients with moderate obstructive sleep hypopnea apnea (OSHA). 2 - To compare manual acupuncture (MA) and electroacupuncture (EA) with different stimulation frequencies (2 Hz and 10 Hz). 3 - To determine the role of endogenous serotonin in this mechanism. SETTING: Department of Physiology, Sleep Division of Department of Psychobiology, Chinese Medicin...

  2. Sono-leather technology with ultrasound: a boon for unit operations in leather processing - review of our research work at Central Leather Research Institute (CLRI), India.

    Science.gov (United States)

    Sivakumar, Venkatasubramanian; Swaminathan, Gopalaraman; Rao, Paruchuri Gangadhar; Ramasami, Thirumalachari

    2009-01-01

    Ultrasound is a sound wave with a frequency above the human audible range of 16 Hz to 16 kHz. In recent years, numerous unit operations involving physical as well as chemical processes are reported to have been enhanced by ultrasonic irradiation. There have been benefits such as improvement in process efficiency, process time reduction, performing the processes under milder conditions and avoiding the use of some toxic chemicals to achieve cleaner processing. These could be a better way of augmentation for the processes as an advanced technique. The important point here is that ultrasonic irradiation is physical method activation rather than using chemical entities. Detailed studies have been made in the unit operations related to leather such as diffusion rate enhancement through porous leather matrix, cleaning, degreasing, tanning, dyeing, fatliquoring, oil-water emulsification process and solid-liquid tannin extraction from vegetable tanning materials as well as in precipitation reaction in wastewater treatment. The fundamental mechanism involved in these processes is ultrasonic cavitation in liquid media. In addition to this there also exist some process specific mechanisms for the enhancement of the processes. For instance, possible real-time reversible pore-size changes during ultrasound propagation through skin/leather matrix could be a reason for diffusion rate enhancement in leather processing as reported for the first time. Exhaustive scientific research work has been carried out in this area by our group working in Chemical Engineering Division of CLRI and most of these benefits have been proven with publications in valued peer-reviewed international journals. The overall results indicate that about 2-5-fold increase in the process efficiency due to ultrasound under the given process conditions for various unit operations with additional benefits. Scale-up studies are underway for converting these concepts in to a real viable larger scale operation. In the present paper, summary of our research findings from employing this technique in various unit operations such as cleaning, diffusion, emulsification, particle-size reduction, solid-liquid leaching (tannin and natural dye extraction) as well as precipitation has been presented.

  3. Learning model of eye movement system based on anatomical structure; Kaibogakuteki kozo ni motozuita gakushu kino wo motsu gankyu undo system to sono tokusei

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, X.; Wakamatsu, H. [Tokyo Medical and Dental University, Tokyo (Japan)

    1998-07-01

    A learning system is proposed to explain the adaptive function of an eye movement consisting of compensatory and optokinetic reflex, and pursuit movements based on the brain anatomy and physiology. Thereby, the learning system is synthesized as an artificial neural network based on the structure and function of the biological neural network of flocculus. The role of neural paths into flocculus from stretch receptors of ocular muscles are discussed in detail from the viewpoint of system control engineering. The mathematical learning process is also shown taking into account the adaptive mechanism and the anatomical structure of vestibular nuclei. The experimental results through simulation confirm the validity of the hypothesis and the appropriateness of the inference process in connection with the proposed mathematical model. 18 refs., 11 figs.

  4. Control means of the aerodynamic vibration occured in Parallel of PC cable-stayed bridge; PC shachokyo heiretsu keburu no taifu seishin taisaku to sono koka

    Energy Technology Data Exchange (ETDEWEB)

    Sato, H. [Public Works Research Inst., Tsukuba (Japan); Takeda, T.; Mukai, H. [Kajima Corp., Tokyo (Japan); Oikawa, K. [SE Corp., Tokyo (Japan)

    1996-01-30

    In recent years, the techniques for the typical PC bridges shown in the title have been considerably developed in Japan. However, occurrence of characteristic vibrations of the parallel cables even at relatively low wind speeds are observed in many cases, for which an effective control means is inevitably required. In this report, an investigation of tests on effectiveness of 4 kinds of vibration control means carried out in a wind tunnel and its results are described. In the test, an elastic model of 3-dimension was used for 5 test cases including a case without any control means, and each case was explained and examined in detail. It was revealed that for a damping system, a considerably large damping effect was necessary to restraint the wake galloping, and the cable distance selected to be 1.5 times smaller or 6 times larger than the cable diameter was effective, and while vibration control wires were effective, the adjustment of the cable vibration frequency was ineffective. It was also pointed out that a further verification would be necessary for the latter 2 control systems as no enough experience was yet accumulated in the actual service. 13 refs., 16 figs., 6 tabs.

  5. Wind-induced cable vibrations and countermeasures of cables of PC cable-stayed bridge. PC syachokyo keburu no kaze ni yoru shindo to sono taisaku

    Energy Technology Data Exchange (ETDEWEB)

    Yoneda, M. (Kawada Industries Inc., Tokyo (Japan))

    1994-05-01

    In recent years, long span of cable-stayed bridges is remarkable. The wind-induced cable vibration called as line vibration and wake galloping was given as an important problem not only in the steel cable-stayed bridges but also in the PC cable-stayed bridges. The technical engineers in design of the cable-stayed bridges have many times to confront the problems on the vibration control of cables, it is considered that sufficient understand of the wind-induced vibration and countermeasures for cables of the PC cable-stayed bridges is necessary. Many reports on the countermeasure examples and trend of vibration control centred on cables of the cable-stayed bridges have been published. In this paper, the wind-induced vibration of cables in the cable-stayed bridges was reviewed, the examples of countermeasures of vibration contro