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Sample records for central tipo iv

  1. Central nervous system relapse of treated stage IV neuroblastoma

    Energy Technology Data Exchange (ETDEWEB)

    Palasis, S.; Egelhoff, J.C.; Koch, B.L.; Ball, W.S. Jr. [Department of Radiology, Children`s Hospital Medical Center, Cincinnati, OH (United States); Morris, J.D. [Department of Pediatrics, Children`s Hospital Medical Center, Cincinnati, OH (United States)

    1998-12-01

    Neuroblastoma is the most common extracranial solid tumor in pediatrics. The long-term survival of patients with advanced-stage neurobastoma has remarkably improved secondary to aggressive treatment protocols including autologous bone marrow transplant (BMT). As a result, a different natural history of this disease is being reported with unusual, late manifestations. The central nervous system (CNS), once a rare site of disease, is being involved with increasing frequency. Appropriate neuroimaging in these patients is important. Two cases of patients with treated stage IV neuroblastoma who developed isolated CNS metastases are presented. The proposed pathogenesis and neuroradiologic manifestations of this complication are reviewed. (orig.) With 2 figs., 23 refs.

  2. Adaptabilidade e estabilidade de genótipos de feijoeiro-comum com grãos tipo carioca na Região Central do Brasil Adaptability and stability of common bean genotypes with carioca grain type for central Brazil

    OpenAIRE

    Helton Santos Pereira; Leonardo Cunha Melo; Luís Cláudio de Faria; Maria José Del Peloso; Joaquim Geraldo Cáprio da Costa; Carlos Agustín Rava; Adriane Wendland

    2009-01-01

    O objetivo deste trabalho foi identificar genótipos de feijoeiro-comum (Phaseolus vulgaris) tipo carioca, com alta adaptabilidade e estabilidade de produção, na Região Central do Brasil, pelo uso de diferentes métodos. Foram conduzidos 45 ensaios de valor de cultivo e uso, com 16 genótipos, em blocos completos ao acaso, com três repetições, nos estados de Goiás, Distrito Federal, Mato Grosso, Mato Grosso do Sul e Tocantins, nos anos de 2003 e 2004. Os dados de produtividade de grãos foram sub...

  3. Adaptabilidade e estabilidade de genótipos de girassol no Brasil Central Adaptability and stability of sunflower genotypes in Central Brazil

    Directory of Open Access Journals (Sweden)

    Anna Karolina Grunvald

    2008-11-01

    Full Text Available O objetivo deste trabalho foi avaliar a adaptabilidade e estabilidade de genótipos de girassol, no Brasil Central, quanto ao rendimento de grãos e de óleo. Os dados foram obtidos de ensaios de genótipos de girassol coordenados pela Embrapa Soja, de 2004 a 2007. Foram usados os métodos de Eberhart & Russell, Porto et al., Rocha et al. e Annicchiarico. Foi realizada a decomposição do índice de recomendação de Annicchiarico nos ambientes favoráveis e desfavoráveis. Este método e o de Porto et al. foram similares e mais adequados para avaliar a adaptabilidade dos genótipos. Em relação ao rendimento de grãos, as variedades BRSGira 02 e Nutrissol apresentaram adaptação ampla. Os híbridos Agrobel 959, MG50 e V03005 e as variedades Catissol e Multissol apresentaram adaptação aos ambientes favoráveis, e os híbridos BRHS 02 e BRHS 04 apresentaram adaptação aos ambientes desfavoráveis. Quanto ao rendimento de óleo, os híbridos Agrobel 959, V03005, MG50, VDH 487, EXP 1441, EXP 1447 e EXP 1446 e as variedades BRSGira 01, BRSGira 02 e Nutrissol apresentaram adaptação ampla. O híbrido MG52 e as variedades Catissol e Multissol mostraram adaptação aos ambientes favoráveis, e BRHS 04 e BRHS 02 mostraram adaptação aos ambientes desfavoráveis. Os genótipos selecionados mostraram-se estáveis, mas em níveis diferenciados.The objective of this study was to evaluate the adaptability and stability of sunflower genotype grain and oil yield, in Central Brazil. The analyzed data were obtained from sunflower genotype trials coordinated by Embrapa Soja, from 2004 to 2007. Genotype adaptability and stability were evaluated using the methods of Eberhart & Russell, Porto et al., Rocha et al., and Annicchiarico. The Annicchiarico method divides sites into favorable and unfavorable environments. This method and the one of Porto et al. were similar and more adequate to evaluate genotypic adaptability. For grain yield, the varieties BRSGira

  4. Avaliação do tipo de curativo utilizado em cateter venoso central para hemodiálise Evaluación del tipo de curativo utilizado en cateter venoso central para hemodiálisis Evaluation of tow types of dressings used on central venous catheters for hemodialysis

    OpenAIRE

    Luciene Fátima Neves Monteiro Barros; Valquíria Grego Arênas; Ana Rita de Cássia Bettencourt; Solange Diccini; Dayana Souza Fram; Angélica Gonçalves Silva Belasco; Dulce Aparecida Barbosa

    2009-01-01

    OBJETIVOS: Avaliar a efetividade de dois tipos de curativos utilizados em cateter venoso central (CVC) em pacientes submetidos à hemodiálise; identificar a taxa de infecção no local de saída e de bacteremia comparando o curativo com gaze e micropore em relação ao filme transparente. MÉTODOS: Foi realizado um ensaio clínico randomizado controlado abrangendo 66 pacientes, sendo 33 nos grupos 1 e 2, respectivamente. No Grupo 1 o curativo utilizado foi gaze e micropore e no Grupo 2 filme transpar...

  5. Central anticholinergic syndrome vs. idiosyncratic reaction triggered by a small IV dose of atropine.

    Science.gov (United States)

    Cao, X; Cui, Y; White, P F; Tang, J; Ma, H

    2016-02-01

    A 58-year-old male was scheduled to undergo radical gastrectomy for cancer under general anesthesia. The patient developed agitation and irregular breathing after receiving a single dose of atropine (0.5 mg) to treat bradycardia immediately prior to induction of anesthesia. Within 5 min after the atropine injection, the patient became unresponsive with facial flushing and diaphoresis. When a drop in oxygen saturation was observed, a laryngeal mask airway was inserted after administering a small bolus dose of propofol (80 mg) and the patient was ventilated with 100% oxygen. Physostigmine was not administered because of the relatively low dose of atropine and the fact that his symptoms were not totally consistent with central anticholinergic syndrome (CAS). The differential diagnosis at the time also included an acute cardiovascular event and an idiosyncratic reaction to atropine. The patient fully recovered within 80 min from this highly unusual reaction to a single 0.5 mg IV dose of atropine. PMID:26471203

  6. Número, tipo e topografia dos pontos de vazamento em pacientes com coriorretinopatia serosa central Number, shape, and topography of leakage points in patients with central serous chorioretinopathy

    Directory of Open Access Journals (Sweden)

    Remo Turchetti

    2005-06-01

    Full Text Available OBJETIVO: Avaliar o número, forma e topografia dos pontos de vazamento em pacientes com coriorretinopatia serosa central (CRSC. MÉTODOS: Foram avaliados exames de angiografia fluoresceínica realizados utilizando o sistema digital Imagenet e selecionados os casos com diagnóstico de CRSC. Foram excluídos os casos em remissão e os exames referentes a um mesmo episódio. O autor preencheu fichas contendo o número do prontuário, iniciais, sexo, idade, data do exame e características do ponto de vazamento (número, localização e tipo dos casos selecionados. RESULTADOS: Foram incluídos 418 pacientes (455 olhos, com uma relação homem:mulher de 2,32:1, sendo que 91,15% dos pacientes apresentaram a doença unilateralmente e 8,85%, bilateralmente. A idade variou de 19 a 68 anos, com média de 43,04 anos. Dos 455 olhos acometidos, 88,35% apresentaram a forma típica de CRSC, enquanto 10,11% a descompensação do epitélio pigmentário da retina (DEPR e 1,54% com descolamento isolado do epitélio pigmentário da retina (EPR. Entre os casos de CRSC típica, observaram-se 88,81% dos pontos de vazamento em "mancha de tinta" e 11,19% em "chaminé". O quadrante nasal superior foi o mais acometido, abrigando 46,01% dos pontos de vazamento, seguido pelo temporal superior (23,27%, nasal inferior (19,18%, temporal inferior (11,01% e região subfoveal (0,53%. CONCLUSÕES: Na nossa casuística, a CRSC acometeu aproximadamente duas vezes mais homens que mulheres, na maior parte das vezes unilateralmente e em pacientes da 4ª década de vida. Cerca de 90% dos pacientes apresentaram a forma típica da doença, com 1 ou 2 pontos de vazamento em "mancha de tinta". O quadrante nasal superior foi o mais acometido. O descolamento isolado do EPR mostrou-se apresentação rara. Cerca de 10% dos pacientes apresentaram descompensação do EPR.PURPOSE: To evaluate the number, shape and topography of leakage points in patients with central serous chorioretinopathy (CSC

  7. Múltiplas hiperintensidades no sistema nervoso central em uma criança com neurofibromatose do tipo 1 Multiple central nervous system hyperintensities in a child with neurofibromatosis type 1

    OpenAIRE

    Carla Graziadio; Marina Boff Lorenzen; Felipe Nora de Moraes; Rosa, Rafael Fabiano M.; Zen, Paulo Ricardo G.; Sérgio Fernando Raupp; Giorgio Adriano Paskulin

    2011-01-01

    OBJETIVO: Relatar o caso de uma criança com neurofibromatose do tipo 1, apresentando o achado ocasional de múltiplas hiperintensidades e de lesão hamartomatosa pré-quiasmática no sistema nervoso central. DESCRIÇÃO DO CASO: Menino de tez escura de quatro anos, cujo pai apresentava manchas café-com-leite e história de cirurgia de tumor de ouvido. A criança evoluiu com um adequado desenvolvimento neuropsicomotor, sem crises convulsivas ou déficit de aprendizagem. Ao exame físico, possuía múltipl...

  8. Avaliação do tipo de curativo utilizado em cateter venoso central para hemodiálise Evaluación del tipo de curativo utilizado en cateter venoso central para hemodiálisis Evaluation of tow types of dressings used on central venous catheters for hemodialysis

    Directory of Open Access Journals (Sweden)

    Luciene de Fátima Neves Monteiro de Barros

    2009-01-01

    Full Text Available OBJETIVOS: Avaliar a efetividade de dois tipos de curativos utilizados em cateter venoso central (CVC em pacientes submetidos à hemodiálise; identificar a taxa de infecção no local de saída e de bacteremia comparando o curativo com gaze e micropore em relação ao filme transparente. MÉTODOS: Foi realizado um ensaio clínico randomizado controlado abrangendo 66 pacientes, sendo 33 nos grupos 1 e 2, respectivamente. No Grupo 1 o curativo utilizado foi gaze e micropore e no Grupo 2 filme transparente. Foram coletados os dados sócio demográficos, clínicos e os relacionados às infecções. Os 66 pacientes permaneceram no estudo até a indicação de retirada do cateter que ocorreu nos episódios de infecção quando foram realizadas culturas de óstio e da ponta do CVC e hemocultura quando indicado. RESULTADOS: Não houve diferença estatística significante quanto ao tipo de curativo e as variáveis estudadas. Os CVC posicionados a 90º em relação a pele apresentaram maior taxa de infecção por S. aureus. CONCLUSÃO: O uso do filme transparente não proporcionou redução de infecção, porém a análise qualitativa deste tipo de curativo teve melhor aceitação pelos pacientes e profissionais da Unidade de Diálise de um Hospital Universitário.OBJETIVOS: Evaluar la efectividad de dos tipos de curativos utilizados en cateter venoso central (CVC en pacientes submetidos al hemodiálisis; identificar el índice de infección en el local de salida y de bacteremia comparando el curativo con gaza y micropore el con al filme transparente. MÉTODOS: Fue realizado un ensayo clínico randomizado controlado. En el Grupo 1 el curativo utilizado fue gaza y micropore y en el Grupo 2 filme transparente. Fueron colectados los datos sócio demográficos, clínicos y los relacionados a las infecciones. Los 66 pacientes permanecieron en el estudio hasta la indicación de retirada del cateter que ocurrió en los episodios de infección cuando fueron

  9. Efeito da desinfecção por aerossóis sobre a capacidade de umedecimento de moldes de poliéter por gesso tipo IV Wettability of a polyether impression material - adverse effects of spray disinfection

    Directory of Open Access Journals (Sweden)

    Maria Cristina Rosifini ALVES-REZENDE

    1999-12-01

    Full Text Available A desinfecção de todo e qualquer molde obtido é medida de biossegurança obrigatória na atividade clínica. Tão importante quanto a desinfecção é a seleção do método e da solução desinfetante a ser utilizada para cada material de moldagem. É imperativo que a capacidade de reprodução de detalhes, a estabilidade dimensional e o grau de umedecimento (ou "molhabilidade" não sejam criticamente afetados. O propósito deste trabalho foi avaliar o grau de umedecimento de uma marca comercial de poliéter (Impregum F por três diferentes marcas comerciais de gesso tipo IV (Herostone, Durone e Polirock, após sua desinfecção por aerossóis de hipoclorito de sódio 1% (líquido de Milton ou glutaraldeído 2% (Glutalabor II. Foram confeccionados 45 moldes de poliéter, os quais, em grupos de 15, receberam aerossóis de água (Grupo Controle, Líquido de Milton ou Glutalabor II. Em seguida, sobre a superfície dos moldes foram confeccionados modelos de gesso tipo IV, em número de 5 para cada marca de gesso. Após seu seccionamento mediano e preparo da superfície de corte, os modelos foram levados ao microscópio Carl Zeiss para leitura do ângulo de contato. Os resultados obtidos permitiram concluir que: a a capacidade de umedecimento do poliéter por diferentes marcas comerciais de gesso tipo IV variou para os gessos estudados; b o gesso Durone adaptou-se melhor aos moldes de poliéter do que os gessos Herostone e Polirock; c a desinfecção dos moldes com aerossóis de hipoclorito de sódio 1% (líquido de Milton ou glutaraldeído 2% (Glutalabor não afetou a adaptação entre os gessos e o poliéter.Impressions carried out in the dental office are potential contamination pathways. The aim of this paper was to evaluate the effects of spray disinfection on the wetting of polyether material (Impregum F by stones. Three kinds of stones (Herostone, Durone and Polirock and two disinfectant solutions (2% glutaraldehyde and 1% hypochlorite

  10. Key locations for soybean genotype assessment in Central Brazil Locais-chave para avaliação de genótipos de soja na Região Central do Brasil

    Directory of Open Access Journals (Sweden)

    Roberto Miranda Pacheco

    2009-05-01

    Full Text Available The objective of this work was to identify key locations for the establishment of soybean (Glycine max genetic breeding programs, in the Central Region of Brazil. Grain yield data of three maturity groups of soybean genotypes, from regional trials conducted over three years, at 18 locations in Brazilian Cerrado were used. A key location for the early phases of the breeding program was defined as the site that best classifies the winning genotypes in the region. Key locations for the final phases were defined as those sites that best represent each environmental stratum, in relation to the adaptability of the respective winning genotype. This adaptability was estimated by additive main effects and multiplicative interaction (AMMI model analysis, using the distance between the score of each location in a stratum and the score of the winning genotype, which characterizes such stratum in an AMMI biplot. The locations that best classified the winning genotypes over space and time were Mineiros, Placas and Rio Verde. For the final phases of genotype selection, with data from the three maturity group, the recommended locations were: Buritis, Chapadão do Céu, Iraí, Pamplona, Placas, Planaltina, Rio Verde, Sacramento, Senador Canedo, Uberaba, and Uberlândia.O objetivo deste trabalho foi identificar locais-chave para o estabelecimento de programas de melhoramento genético de soja (Glycine max, na Região Central do Brasil. Foram utilizados dados de produtividade de grãos de genótipos de soja, de três ciclos de maturação, obtidos de ensaios regionais conduzidos por três anos em 18 localidades da região. O local-chave para a condução das fases preliminares do programa foi definido como a localidade que melhor classifica os genótipos vencedores na região. Os locais-chave para as fases finais foram definidos como os que melhor representam cada estrato ambiental identificado, em termos da adaptabilidade do respectivo genótipo vencedor. Essa

  11. Estabilidade dimensional dos moldes de poliéter e polissulfeto obtidos com a técnica do casquete de acrílico, vazados em gesso pedra especial tipo IV e V = Dimensional stability of polyether and polysulfide impression materials obtained with acrylic coping techniques pouring in stone type IV and V

    Directory of Open Access Journals (Sweden)

    Alves, Maria Cechinel

    2005-01-01

    Full Text Available O propósito deste estudo foi verificar o comportamento de moldes de polissulfeto (Permlastic e poliéter (Impregum Soft obtidos por meio da técnica do casquete de resina acrílica. Avaliou-se a estabilidade dimensional dos moldes confeccionados de uma matriz metálica contendo dois preparos protéticos, com diâmetros e alturas diferentes. Os moldes de cada material foram vazados com gessos pedra IV (Vel-mix e gesso pedra V (Exadur, perfazendo um total de quatro combinações experimentais: (polissulfeto/gesso-pedra IV, polissulfeto/gesso-pedra V, poliéter/gesso-pedra IV e poliéter/gesso-pedra V. Os troquéis de gesso foram mensurados com um paquímetro digital, 24 horas após sua obtenção. Os resultados obtidos foram submetidos a ANOVA a 5%. Pode-se concluir que os moldes de poliéter vazados com gesso pedra tipo V apresentaram melhor estabilidade dimensional em relação às outras condições experimentais

  12. Evaluación de la calidad del riego en máquinas eléctricas de pivote central del modelo o tipo Ballama"

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    Norge Tornés O

    2009-01-01

    Full Text Available El trabajo se realizó en áreas regadas con la máquina eléctrica de pivote central tipo Ballama de 8 torres, en un suelo aluvial poco diferenciado cultivado de papa en la Unidad Básica de Producción Cooperativa (UBPC "Antonio Maceo", de la Empresa de Cultivos Varios "Paquito Rosales", ubicada en el poblado de Veguitas, municipio Yara, provincia Granma. El experimento se desarrolló en el período de diciembre de 2005 a marzo de 2006, El marco de siembra utilizado fue: 0,90 m entre hileras y 0,25m entre plantas. El análisis de la lluvia a lo largo de la máquina arrojó una distribución no uniforme, semejante comportamiento presentó la altura por planta obteniéndose los menores valores en tramos de valor del coeficiente de uniformidad.

  13. Múltiplas hiperintensidades no sistema nervoso central em uma criança com neurofibromatose do tipo 1 Multiple central nervous system hyperintensities in a child with neurofibromatosis type 1

    Directory of Open Access Journals (Sweden)

    Carla Graziadio

    2011-12-01

    Full Text Available OBJETIVO: Relatar o caso de uma criança com neurofibromatose do tipo 1, apresentando o achado ocasional de múltiplas hiperintensidades e de lesão hamartomatosa pré-quiasmática no sistema nervoso central. DESCRIÇÃO DO CASO: Menino de tez escura de quatro anos, cujo pai apresentava manchas café-com-leite e história de cirurgia de tumor de ouvido. A criança evoluiu com um adequado desenvolvimento neuropsicomotor, sem crises convulsivas ou déficit de aprendizagem. Ao exame físico, possuía múltiplas manchas café-com-leite e efélides. A avaliação pela ressonância nuclear magnética de encéfalo evidenciou múltiplas imagens nodulares hiperintensas em T2 e Flair, com isossinal em T1, localizadas na substância branca dos hemisférios cerebrais, cerebelo e tronco cerebral. Apresentava ainda lesão hamartomatosa pré-quiasmática. A avaliação eletroencefalográfica e o exame neurológico eram normais. COMENTÁRIOS: As imagens hiperintensas verificadas na ressonância nuclear magnética correspondem aos chamados unidentified bright objects (UBOs, observados em de 60 a 70% das crianças com neurofibromatose do tipo 1, sendo raros em adultos. Sua etiologia e significado clínico ainda não são claros. Alguns estudos os têm associado à disfunção cognitiva, déficit neurológico e risco de malignização. Hamartomas localizados próximos ao quiasma óptico são incomuns, mas podem se relacionar à puberdade precoce. A avaliação do sistema nervoso central de crianças assintomáticas com neurofibromatose do tipo 1 é discutível. Contudo, nos casos em que UBOs sejam identificados, é importante considerar seu seguimento radiológico, especialmente diante de lesões múltiplas ou atípicas.OBJECTIVE:To report a child with neurofibromatosis type 1 presenting the occasional central nervous system feature of multiple hyperintensities and a prechiasmatic hamartomatous lesion. CASE DESCRIPTION: The patient is a four-year old black boy

  14. Model of automatic fuel management for the Atucha II nuclear central with the PUMA IV code

    International Nuclear Information System (INIS)

    The Atucha II central is a heavy water power station and natural uranium. For this reason and due to the first floor reactivity excess that have this type of reactors, it is necessary to carry out a continuous fuel management and with the central in power (for the case of Atucha II every 0.7 days approximately). To maintain in operation these centrals and to achieve a good fuels economy, different types of negotiate of fuels that include areas and roads where the fuels displace inside the core are proved; it is necessary to prove the great majority of these managements in long periods in order to corroborate the behavior of the power station and the burnt of extraction of the fuel elements. To carry out this work it is of great help that a program implements the approaches to continue in each replacement, using the roads and areas of each administration type to prove, and this way to obtain as results the one regulations execution in the time and the average burnt of extraction of the fuel elements, being fundamental this last data for the operator company of the power station. To carry out the previous work it is necessary that a physicist with experience in fuel management proves each one of the possible managements, even those that quickly can be discarded if its don't fulfill with the regulatory standards or its possess an average extraction burnt too much low. For this it is of fundamental help that with an automatic model the different administrations are proven and lastly the physicist analyzes the more important cases. The pattern in question not only allows to program different types of roads and areas of fuel management, but rather it also foresees the possibility to disable some of the approaches. (Author)

  15. Fratura extra-articular da extremidade medial da clavícula associada à luxação acromioclavicular tipo IV: relato de caso Extra-articular fracture of the medial end of the clavicle associated with type IV acromioclavicular dislocation: case report

    Directory of Open Access Journals (Sweden)

    Mário Chaves Correa

    2011-10-01

    Full Text Available Ocorrendo isoladamente, as fraturas da clavícula e as luxações acromioclaviculares são lesões muito comuns. A combinação de uma luxação acromioclavicular e de uma fratura do terço lateral da clavícula não é rara. Entretanto, existem muito poucos casos descritos de luxações acromioclaviculares associadas a fraturas do terço médio da clavícula; aquelas associadas a fraturas do terço medial são ainda mais raras. Nós reportamos o caso de um indivíduo adulto do sexo masculino que sofreu uma luxação acromioclavicular (tipo IV associada a uma fratura extra-articular desviada da extremidade medial da clavícula (grupo 3 de Almann em um acidente ciclístico. O paciente foi tratado na fase aguda com redução aberta e fixação interna das duas lesões. Na avaliação clínica, 12 meses após a cirurgia, o paciente apresentava-se assintomático, com mobilidade ativa e passiva completa, força e resistência normais e simetria das cinturas escapulares. As radiografias e a tomografia computadorizada tridimensional mostravam subluxação posterossuperior persistente da articulação acromioclavicular e consolidação anatômica da fratura clavicular.Fractures of the clavicle and acromioclavicular dislocations are very common injuries when they occur separately. The combination of an acromioclavicular dislocation and a fracture of the lateral third of the clavicle is not rare. However, there are very few reported cases of acromioclavicular dislocations associated with fractures of the middle third of the clavicle; those associated with fractures of the medial third are even rarer. We report the case of an adult male who suffered an acromioclavicular dislocation (type IV associated with a displaced extra-articular fracture of the medial end of the clavicle (Almann group 3 in a cycling accident. The patient was treated during the acute phase with open reduction and internal fixation of the two lesions. At the clinical evaluation 12

  16. Micro-chemical and metallurgical study of Samnite bronze belts from ancient Abruzzo (central Italy, VIII-IV BC)

    Science.gov (United States)

    Riccucci, Cristina; Ingo, Gabriel Maria; Faustoferri, Amalia; Pierigè, Maria Isabella; Parisi, Erica Isabella; Di Carlo, Gabriella; De Caro, Tilde; Faraldi, Federica

    2013-12-01

    The Samnite bronze belts and the chest disk cuirasses (VIII-IV BC) are the distinctive defensive weapons of the Samnite warriors having likely also a symbolic relevance. These artefacts were mainly found during the archaeological excavations of warriors' graves from ancient Abruzzo (central Italy). Their chemical composition, metallurgical features and corrosion products formed during the long-term burial have been studied by means of the combined use of analytical techniques such as optical microscopy (OM), scanning electron microscopy coupled with energy-dispersive X-ray micro-analysis (SEM-EDS), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The micro-chemical and structural results show that the bronze belts have often been produced by using unusual high-tin bronze alloys achieving a silver-like appearance and by performing tailored cycles of thermal treatments under reducing conditions and hot mechanical working aimed to shape the high-tin alloys in the form of a thin bronze sheet. Furthermore, the investigation has shown that the main alloying elements have been transformed during the burial into mineral species giving rise to the formation of stratified structures constituted by different mineral phases such as tin oxides, cuprous oxide (Cu2O) and copper carbonates (azurite (Cu3(CO3)2(OH)2 and malachite (CuCO3Cu(OH)2)) as well as dangerous chlorine-based compounds such as nantokite (CuCl) and atacamite (Cu2(OH)3Cl) polymorphs. This information evidences the strict interaction of the alloying elements with the soil components as well as the occurrence of the copper cyclic corrosion as a post-burial degradation phenomenon. The present study confirms that the combined micro-chemical and micro-structural investigation techniques such as SEM-EDS, XPS, XRD and OM can be successfully used to investigate the technological production processes of the ancient artefacts and to achieve the detailed micro-chemical and structural description of the

  17. Reservorios venosos centrales totalmente implantables, tipo Port-A-Cath, en pacientes oncológicos: Revisión de Complicaciones Totally implantable central venous devices (Port-A-Cath) in oncological patients: Review of complications

    OpenAIRE

    E. Freiré; La Iglesia, A.; C. Rodríguez; LÓpez, M. A.; González, M.; R. Peleteiro; M.A. Camba

    2008-01-01

    El objetivo de esta revisión fue la de estudiar, describir y recoger las complicaciones relacionadas y derivadas de la utilización de dispositivos implantables de carácter permanente, tipo Port-A-Cath (PAC), en pacientes oncológicos. Durante las últimas décadas, estos dispositivos han experimentado una evolución tecnológica importante de manera que actualmente permiten su utilización de forma repetida, en régimen ambulatorio y para diferentes aplicaciones médicas, (administración de nutrición...

  18. Specialized consultant in radiological safety to the south central hospital of high speciality, PEMEX. IV. - October of 2001; Asesoria especializada en seguridad radiologica a la clinica al hospital central sur de alta especialidad, PEMEX. IV.- Octubre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The south central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  19. Specialized consultant in radiological safety to the clinical north central hospital of high speciality, PEMEX. IV. - December of 2001; Asesoria especializada en seguridad radiologica a la clinica hospital central norte de alta especialidad, PEMEX. IV.- Diciembre de 2001

    Energy Technology Data Exchange (ETDEWEB)

    Angeles C, A.; Vizuet G, J.; Benitez S, J. A.; Garcia A, J.; Rodriguez A, F

    2002-01-15

    The clinical north central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  20. Specialized consultant in radiological safety to the south central hospital of high speciality, PEMEX. IV. - October of 2001

    International Nuclear Information System (INIS)

    The south central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  1. Specialized consultant in radiological safety to the clinical north central hospital of high speciality, PEMEX. IV. - December of 2001

    International Nuclear Information System (INIS)

    The clinical north central hospital of high speciality, dependent of PEMEX, It request consultant of the ININ to be able to maintain their sanitary license for the use of X-ray equipment for the radiologic diagnostic.The proposal of the ININ was to be a program of technical attendance, schedule monthly to be able to solve the observations that are presented in the use of those equipment, and that the hospital can conserve its respective sanitary license.(Author)

  2. Fanatismo: tres tipos ideales

    OpenAIRE

    Taguenca Belmonte, Juan Antonio

    2013-01-01

    Objetivo: comprender, teóricamente, el fanatismo en el Mundo de Occidente, identificando y presentando sus tipos ideales en diferentes momentos históricos. Metodología: la investigación se inserta en lo que Max Weber denomina el método científico, pero que desarrolla como un método comprensivo, dado que su interés lo lleva a comprender la realidad sobre la que indaga a través de la interpretación de textos, buscando identificar los tipos de ideales. A partir de ello, alejarse de la subjetivid...

  3. Economic viability of retrofiting emitters in center pivot irrigation systems Viabilidade econômica da troca de emissores em sistemas de irrigação tipo pivô central

    Directory of Open Access Journals (Sweden)

    Cornélio A. Zolin

    2012-06-01

    Full Text Available Although several studies have been conducted to evaluate the uniformity of water application under center pivot irrigation systems, there are few studies concerning the economic perspective of such coefficient. The aim of this study is to present a methodology to accomplish an economic analysis as support for the decision-making to retrofit emitters in center pivot irrigation systems, and to attribute an economic meaning to the uniformity coefficient of water application taking into account the response function productivity to the amount of water applied and the sale price of the crops. In the hypothetic calculation example considering the variation of revenue of potato crop under center pivot irrigation system, it was verified that the area with uniformity coefficient of water application of 90% brought an income increase of BR$ 1,992.00, considering an area about 1,0 ha. Thus, it can be concluded that the methodology presented has met the objectives proposed in the study and made it possible to attribute an economical meaning to the coefficient of water uniformity application.Embora vários estudos tenham sido conduzidos para a avaliação da uniformidade de aplicação de água por equipamentos de irrigação do tipo pivô central, são escassos os trabalhos que tenham analisado de um ponto de vista econômico o significado de tal coeficiente. Objetivou-se com o presente trabalho apresentar uma metodologia de análise econômica como auxílio na tomada de decisão para troca de emissores de sistemas de irrigação tipo pivô central e atribuir um significado econômico ao coeficiente de uniformidade de aplicação de água, levando-se em consideração a função de resposta da cultura à lâmina de água aplicada e o preço de venda dos produtos agrícolas. No exemplo hipotético de cálculo, considerando-se a diferença na renda obtida com a cultura da batata irrigada com coeficiente de uniformidade de 90% e 70%, respectivamente, verificou

  4. Reservorios venosos centrales totalmente implantables, tipo Port-A-Cath, en pacientes oncológicos: Revisión de Complicaciones Totally implantable central venous devices (Port-A-Cath in oncological patients: Review of complications

    Directory of Open Access Journals (Sweden)

    E. Freiré

    2008-10-01

    Full Text Available El objetivo de esta revisión fue la de estudiar, describir y recoger las complicaciones relacionadas y derivadas de la utilización de dispositivos implantables de carácter permanente, tipo Port-A-Cath (PAC, en pacientes oncológicos. Durante las últimas décadas, estos dispositivos han experimentado una evolución tecnológica importante de manera que actualmente permiten su utilización de forma repetida, en régimen ambulatorio y para diferentes aplicaciones médicas, (administración de nutrición parenteral, administración de medicamentos o para la simple extracción de muestras sanguíneas. Gracias a esta evolución tecnológica, se ha incrementado la calidad de vida de los pacientes tanto por la mayor facilidad de utilización, como en la reducción del número de ingresos hospitalarios, mejorando así su balance coste/beneficio. Al igual que en cualquier otra técnica médico-quirúrgica, no están exentos de complicaciones derivadas bien del implante, utilización o mantenimiento en el tiempo de estos dispositivos y que es objeto principal de nuestra revisión. Consideramos necesario realizar esta revisión como control interno de las complicaciones surgidas así como herramienta de vigilancia sobre la técnica de implante y en relación con una apreciación subjetiva del incremento de las complicaciones de carácter trombótico en nuestra serie. Mostramos como la estandarización de la técnica de implante y la unificación de criterios a la hora de realizar el mantenimiento de los mismos por parte de los equipos de enfermería parece que reduce el número de complicaciones. Revisada la bibliografía, hemos constatado que nuestras cifras se presentan como buenas o muy buenas en el rango de las complicaciones advertidas y contabilizadas en una revisión de 473 historias clínicas de pacientes oncológicos tratados con fármacos quimioterápicos a través de este tipo de dispositivos.This review, describe and depict the complications

  5. The PLATO IV Architecture.

    Science.gov (United States)

    Stifle, Jack

    The PLATO IV computer-based instructional system consists of a large scale centrally located CDC 6400 computer and a large number of remote student terminals. This is a brief and general description of the proposed input/output hardware necessary to interface the student terminals with the computer's central processing unit (CPU) using available…

  6. Central alterations of neuromuscular function and feedback from group III-IV muscle afferents following exhaustive high-intensity one-leg dynamic exercise.

    Science.gov (United States)

    Pageaux, Benjamin; Angius, Luca; Hopker, James G; Lepers, Romuald; Marcora, Samuele M

    2015-06-15

    The aims of this investigation were to describe the central alterations of neuromuscular function induced by exhaustive high-intensity one-leg dynamic exercise (OLDE, study 1) and to indirectly quantify feedback from group III-IV muscle afferents via muscle occlusion (MO, study 2) in healthy adult male humans. We hypothesized that these central alterations and their recovery are associated with changes in afferent feedback. Both studies consisted of two time-to-exhaustion tests at 85% peak power output. In study 1, voluntary activation level (VAL), M-wave, cervicomedullary motor evoked potential (CMEP), motor evoked potential (MEP), and MEP cortical silent period (CSP) of the knee extensor muscles were measured. In study 2, mean arterial pressure (MAP) and leg muscle pain were measured during MO. Measurements were performed preexercise, at exhaustion, and after 3 min recovery. Compared with preexercise values, VAL was lower at exhaustion (-13 ± 13%, P < 0.05) and after 3 min of recovery (-6 ± 6%, P = 0.05). CMEP area/M area was lower at exhaustion (-38 ± 13%, P < 0.01) and recovered after 3 min. MEP area/M area was higher at exhaustion (+25 ± 27%, P < 0.01) and after 3 min of recovery (+17 ± 20%, P < 0.01). CSP was higher (+19 ± 9%, P < 0.01) only at exhaustion and recovered after 3 min. Markers of afferent feedback (MAP and leg muscle pain during MO) were significantly higher only at exhaustion. These findings suggest that the alterations in spinal excitability and CSP induced by high-intensity OLDE are associated with an increase in afferent feedback at exhaustion, whereas central fatigue does not fully recover even when significant afferent feedback is no longer present. PMID:25855308

  7. Effect of Lathyrus sativus and vitamin C on the status of aromatic L-amino acid decarboxylase and dipeptidyl-aminopeptidase-IV in the central and peripheral tissues and serum of guinea pigs

    International Nuclear Information System (INIS)

    Studies on the effect of Lathyrus Sativus seeds (LLS) on aromatic L-amino acid decarboxylase (AADC) and on dipeptidyl-aminopeptidase-IV (DAP-IV) were carried out in the central and peripheral tissues and serum of LSS-treated and LSS plus vitamin C-treated guinea pigs. The feeding of LSS for 35 days decreased the AADC activity significantly in the brain and peripheral tissues, but the activity was recovered to normal level in the most tissues when vitamin C was added with the LSS. DAP-IV activity decreased in the peripheral tissues when treated with LSS, but the vitamin C administration with LSS did not recover the enzyme activity. The DAP-IV activity did not decrease significantly in any of the brain tissues of the LSS-treated group. (author). 18 refs, 2 tabs

  8. Simplified system for the pressure control of a Nucleo electric central of the BWR type; Sistema simplificado para el control de presion de una central Nucleoelectrica del tipo BWR

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez J, J. [FI-UNAM, DEPFI Campus Morelos, Jiutepec, Morelos (Mexico)

    2003-07-01

    One of the main preoccupations of the electric power generator stations is the appropriate operation of the same ones. The operators must be qualified to respond in an adequate way and to be able to take to these power stations to an optimal, sure and stable operation condition under any circumstance. The Laboratory of Analysis in Nuclear Reactors Engineering (LAIRN) of the Engineering Faculty of UNAM (Fl) in collaboration with the International Atomic Energy Agency (IAEA), it develops an interactive classroom simulator in which simulations of the phenomena which take place in a nuclear power station are executed. The classroom simulator bases its operation on specialized nuclear codes feeding interactive graphic unfolding with those that it is possible to make a monitoring, supervision and control of the behavior of the power station under any operation regime, either in normal operation, transitory events or postulated accident sequence. The development of this classroom simulator includes a modular and re configurable structure. Due to it is indispensable to count with a higher inter activity with the system it is included the simulation of the control system of the plant and inside the same, one of those more important it is the reactor pressure control system. The present work describes the conceptual design and the used methodology for the development and implementation in the simulator of a simplified model of the pressure control system for a BWR generic central. The reach of the development will allow to accomplish the necessary tests to demonstrate that this has an adequate performance according to the carried out simplifications. (Author)

  9. Ataxia espinocerebelar tipo 6: relato de caso

    Directory of Open Access Journals (Sweden)

    Bianca Simone Zeigelboim

    2014-10-01

    Full Text Available O objetivo deste estudo foi verificar as alterações vestibulococleares observadas em um caso de ataxia espinocerebelar tipo 6. O caso foi encaminhado do Hospital de Clínicas para o Laboratório de Otoneurologia de uma Instituição de Ensino e foi submetido aos seguintes procedimentos: anamnese, inspeção otológica, avaliações audiológica e vestibular. O caso retrata uma paciente com diagnóstico genético de ataxia espinocerebelar tipo 6, do sexo feminino, com 57 anos de idade, que referiu desequilíbrio à marcha com tendência a queda para a esquerda, disartria e disfonia. Na avaliação audiológica apresentou configuração audiométrica descendente a partir da frequência de 4kHz e curva timpanométrica do tipo "A" com presença dos reflexos estapedianos bilateralmente. No exame vestibular observou-se na pesquisa da vertigem posicional presença de nistagmo vertical inferior e oblíquo, espontâneo e semiespontâneo múltiplo com características centrais (ausência de latência, paroxismo, fatigabilidade e vertigem, nistagmooptocinético abolido e hiporreflexia à prova calórica. Constataram-se alterações labirínticas que indicaram afecção do sistema vestibular central evidenciando-se a importância dessa avaliação. A existência da possível relação entre os achados com os sintomas vestibulares apresentados pela paciente apontou a relevância do exame labiríntico neste tipo de ataxia uma vez que a presença do nistagmo vertical inferior demonstrou ser frequente neste tipo de patologia.

  10. Welding IV.

    Science.gov (United States)

    Allegheny County Community Coll., Pittsburgh, PA.

    Instructional objectives and performance requirements are outlined in this course guide for Welding IV, a competency-based course in advanced arc welding offered at the Community College of Allegheny County to provide students with proficiency in: (1) single vee groove welding using code specifications established by the American Welding Society…

  11. Gulf of Mexico sales 147 and 150: Central and western planning areas. Draft environmental impact statement. Volume 2. Sections IV.D through IX. Draft report

    International Nuclear Information System (INIS)

    Contents: environmental impacts of the proposed actions and alternatives; proposed central gulf sale 147; proposed western gulf sale 150; analysis of a large oil spill; consultation and coordination; bibliography and special references; glossary; appendices

  12. Gulf of Mexico Sales 157 and 161: Central and western planning areas final environmental impact statement, Volume I: Sections I through IV.C

    International Nuclear Information System (INIS)

    This Final Environmental Impact Statement (EIS) covers the proposed 1996 Gulf of Mexico OCS oil and gas lease sales [Central Gulf of Mexico Sale 157 (March 1996) and Western Gulf of Mexico Sale 161 (August 1996)]. This document includes the purpose and background of the proposed actions, the alternatives, the descriptions of the affected environment, and the potential environmental impacts of the proposed actions and alternatives. Proposed mitigating measures and their potential effects are analyzed, in addition to potential cumulative impacts resulting from proposed activities

  13. Gulf of Mexico sales 147 and 150: Central and western planning areas. Draft environmental impact statement. Volume 1. Sections I through IV.C. Draft report

    International Nuclear Information System (INIS)

    The Draft Environmental Impact Statement (EIS) covers the proposed 1994 Gulf of Mexico OCS oil and gas lease sales (Central Gulf of Mexico Sale 147 (March 1994) and Western Gulf of Mexico Sale 150 (August 1994)). The document includes the purpose and background of the proposed actions, the alternatives, the description of the affected environment, and the potential environmental impacts of the proposed actions and alternatives. Proposed mitigating measures and their effects are analyzed, in addition to potential cumulative impacts resulting from proposed activities

  14. Asteroids IV

    Science.gov (United States)

    Michel, Patrick; DeMeo, Francesca E.; Bottke, William F.

    . Asteroids, like planets, are driven by a great variety of both dynamical and physical mechanisms. In fact, images sent back by space missions show a collection of small worlds whose characteristics seem designed to overthrow our preconceived notions. Given their wide range of sizes and surface compositions, it is clear that many formed in very different places and at different times within the solar nebula. These characteristics make them an exciting challenge for researchers who crave complex problems. The return of samples from these bodies may ultimately be needed to provide us with solutions. In the book Asteroids IV, the editors and authors have taken major strides in the long journey toward a much deeper understanding of our fascinating planetary ancestors. This book reviews major advances in 43 chapters that have been written and reviewed by a team of more than 200 international authorities in asteroids. It is aimed to be as comprehensive as possible while also remaining accessible to students and researchers who are interested in learning about these small but nonetheless important worlds. We hope this volume will serve as a leading reference on the topic of asteroids for the decade to come. We are deeply indebted to the many authors and referees for their tremendous efforts in helping us create Asteroids IV. We also thank the members of the Asteroids IV scientific organizing committee for helping us shape the structure and content of the book. The conference associated with the book, "Asteroids Comets Meteors 2014" held June 30-July 4, 2014, in Helsinki, Finland, did an outstanding job of demonstrating how much progress we have made in the field over the last decade. We are extremely grateful to our host Karri Muinonnen and his team. The editors are also grateful to the Asteroids IV production staff, namely Renée Dotson and her colleagues at the Lunar and Planetary Institute, for their efforts, their invaluable assistance, and their enthusiasm; they made life as

  15. "CEZAC 06": nueva variedad de ajo tipo Jaspeado para la región norte centro de México "CEZAC 06": new Jaspeado garlic cultivar for the northem-central region of Mexico

    Directory of Open Access Journals (Sweden)

    Manuel Reveles-Hernández

    2011-08-01

    Full Text Available Alrededor de 5 200 hectáreas de ajo son cultivadas en México donde la región norte centro, es una de las principales áreas productoras de esta hortaliza. La falta de variedades de ajo localmente adaptadas es una seria desventaja para los productores de ajo. En este reporte se mencionan las principales características agronómicas de "CEZAC 06", una nueva variedad de ajo disponible para los productores de los estados de Zacatecas, Aguascalientes, Durango, Chihuahua y Coahuila. Las principales ventajas de esta variedad son rendimientos más altos, bulbos consistentemente redondos, menor número de dientes por bulbo y maduración homogénea. En parcelas comerciales el rendimiento se ha mejorado en 9-17% y se han alcanzado rendimientos de hasta 30 t ha-1 con el uso de "CEZAC 06".About 5 200 hectares of garlic are cultivated in Mexico; the north-central region is one of the main producing areas of this vegetable. The lack of locally adapted varieties of garlic is a serious disadvantage for garlic producers. In this paper are mentioned the main agronomic characteristics of "CEZAC 06", a new garlic variety available for producers of Zacatecas, Aguascalientes, Durango, Chihuahua and Coahuila. The main advantages of this variety are higher yield, consistently round bulbs, fewer numbers of cloves per bulb and homogeneous maturation. In commercial plots, yield has improved in 9-17% and there have been achieved yields of up to 30 t ha-1 using "CEZAC 06".

  16. Ovarian Cancer Stage IV

    Science.gov (United States)

    ... My Pictures Browse Search Quick Search Image Details Ovarian Cancer Stage IV View/Download: Small: 576x641 View Download Add to My Pictures Title: Ovarian Cancer Stage IV Description: Drawing of stage IV ...

  17. Un problema tipo bin-packing

    Directory of Open Access Journals (Sweden)

    Geovanni Figueroa Mata

    2011-09-01

    Full Text Available Se presentan dos algoritmos heurísticos para resolver un problema de tipo binpacking en el cual se quiere guardar objetos de n tipos diferentes (en donde la demanda del objeto de tipo i-ésimo está dada por d1 en m tipos de recipientes con capacidades no necesariamente iguales; todos los recipientes de tipo j =1,2,...,m deben tener la misma distribución de los objetos. El objetivo es minimizar el costo de los recipientes por utilizar, donde el costo de cada tipo de recipiente está dado por wj (j =1,2,...,m. Para cada recipiente de tipo j =1,2,...,m se deben encontrar el número de repeticiones xj del recipiente, así como el número de copias aij del objeto i-ésimo que se deben almacenar en el recipiente j-ésimo (j =1,2,...,m.

  18. Estados depressivos em diabetes tipo 2

    OpenAIRE

    Góis, Carlos José Fernandes da Conceição, 1957-

    2013-01-01

    A diabetes tipo 2 e a depressão são duas patologias com incidência crescente. A comorbilidade diabetes tipo 2 e depressão tem sido amplamente investigada, nomeadamente num óptica de influência recíproca e de impacto da depressão sobre a evolução da diabetes. O presente trabalho sobre estados depressivos em diabetes tipo 2 respondeu a perguntas em áreas carenciadas de estudos, nomeadamente na população portuguesa, ou contribuiu com perspetivas inovadoras com interesse clínico. Os principais ob...

  19. INSULINA Y ENFERMEDAD DE ALZHEIMER: UNA DIABETES TIPO 3?

    Directory of Open Access Journals (Sweden)

    Andrés Jagua Gualdrón

    2007-03-01

    Full Text Available La enfermedad de Alzheimer es un trastorno degenerativo del sistema nervioso central cuya incidencia probablemente aumentará en los próximos años. Los resultados de investigaciones recientes relacionan esta enfermedad con trastornos en la señal de la insulina a nivel de las neuronas. ¿Es la Enfermedad de Alzheimer una diabetes tipo 3? En este documento presentamos una reseña breve de las evidencias que se levantan en torno a este modelo de la enfermedad.

  20. Use of the frequency inverter on center pivot irrigation system and its effects on water depth and water distribution uniformity Utilidad del inversor de frecuencia em el sistema de irrigación tipo pivó central y su efecto en la lámina de uniformidad de distribución del agua Uso de inversor de frequência em sistema de irrigação do tipo pivô central e seu efeito na lâmina e uniformidade de distribuição de água

    Directory of Open Access Journals (Sweden)

    Adenilsom dos Santos Lima

    2009-12-01

    acuerdo con las posiciones de declive versus aclive y nivel. Concluímos que la  posición de la línea lateral influyó significativamente en la rotación del conjunto motobomba, lámina de agua aplicada y la consumación de energia. No verificamos diferencia alguna en los valores de uniformidad de distribución del agua.Este trabalho teve o objetivo de avaliar a uniformidade de distribuição e lâmina de água aplicada por um equipamento de irrigação do tipo pivô central em função da variação da velocidade de rotação no conjunto motobomba com o uso de um inversor de freqüência e o efeito da posição da linha lateral nesses parâmetros. Foram testadas três posições de linhas coletoras de água: aclive de 3,45%, nível e declive de 11,78%. O delineamento experimental foi inteiramente casualizado, sendo feitas três repetições em cada posição testada. Aplicou-se a análise de variância seguida do teste de Tukey. O valor médio do coeficiente de uniformidade de Heermann e Hein foi de 88,85%, qualificando a uniformidade de distribuição de água como boa. A lâmina média ponderada de irrigação aplicada foi 5,71 mm, variando dentro de cada ensaio significativamente (5% entre as posições de declive versus aclive e nível. Concluiu-se que a posição da linha lateral influenciou significativamente na rotação do conjunto motobomba, lâmina de água aplicada e consumo de energia, porém não foram verificadas diferenças nos valores de uniformidade de distribuição de água.

  1. Memoria asociativa en redes tipo Hopfield balanceadas

    OpenAIRE

    Recio Marín, Ibon

    2016-01-01

    [ES] Análisis computacional de un modelo (además de su fenomenología emergente) de red asociativa tipo Hopfield que se ha modificado para de cabida a evidencias biológicas como es la del balanceado entre las neuronas excitadoras e inhibidoras en la corteza cerebral.

  2. O Herpesvírus bovino tipo 5 (BoHV-5 pode utilizar as rotas olfatória ou trigeminal para invadir o sistema nervoso central de coelhos, dependendo da via de inoculação Bovine herpesvirus 5 may use the olfactory and trigeminal pathways to invade the central nervous system of rabbits, depending upon the route of inoculation

    Directory of Open Access Journals (Sweden)

    Diego Gustavo Diel

    2005-09-01

    Full Text Available O herpesvírus bovino tipo 5 (BoHV-5 é um agente importante de meningoencefalite em bovinos. Após replicação na mucosa nasal, acredita-se que o vírus invada o cérebro principalmente pela via olfatória. Para investigar a importância dessa via na patogenia da infecção neurológica em um modelo animal, coelhos recém-desmamados (30 dias foram submetidos à ablação cirúrgica dos bulbos olfatórios (BOs e posteriormente inoculados pela via intranasal (IN ou no saco conjuntival (IC com uma cepa altamente neurovirulenta do BoHV-5 (SV-507. Após inoculação IN, 10/10 coelhos no Grupo Controle (com BOs desenvolveram enfermidade neurológica, com início dos sinais clínicos entre os dias 5 e 10 pós-inoculação (pi (média de 7,5 dias; em contraste, no grupo submetido à ablação dos BOs (n=11, apenas um animal (9,1% desenvolveu doença neurológica (início no dia 17pi. Administração de dexametasona aos animais sobreviventes (n=10 no dia 50 pi resultou em excreção viral em secreções nasais e/ou oculares por oito destes, demonstrando que o vírus foi capaz de atingir o gânglio trigêmeo (TG durante a infecção aguda. Esses resultados demonstram que a rota olfatória representa a via principal, mas não única, de acesso ao cérebro de coelhos após inoculação IN. Para investigar o papel de uma segunda possível via de acesso, grupos de coelhos controle (n=12 ou submetidos à ablação dos BOs (n=12 foram inoculados no saco conjuntival (IC, após o qual o vírus poderia utilizar o ramo oftálmico do nervo trigêmeo para invadir o cérebro. Dez coelhos controle (83,3 % desenvolveram doença neurológica após inoculação IC, com início dos sinais entre os dias 11 e 20 (média 15,3 dias. A ablação prévia dos BOs não afetou a freqüência ou o curso da doença neurológica nesse grupo: 10/12 coelhos (83,3 % sem os BOs desenvolveram a doença neurológica, com os sinais iniciando entre os dias 9 e 15pi (média 12,7 dias. Esses

  3. IV treatment at home

    Science.gov (United States)

    ... 24 hours a day. If there is a problem with the IV, you can call your home health care agency for help. If the IV comes out of ... bleeding stops. Then call the home health care agency or the doctor right away.

  4. Eficacia de la Galantamina en los síntomas de demencia del tipo Alzheimer, vascular y mixta

    OpenAIRE

    José Luis Acosta-Patiño; Joaquín Jiménez-Alayola; Lucas López-Segovia; Manuel E. Borbolla-Sala

    2006-01-01

    Objetivo: evaluar la eficacia de la galantamina sobre los síntomas de demencia tipo Alzheimer, vascular o mixta en pacientes ambulatorios. Material y métodos: estudio experimental Fase IV en donde se incluyeron 32 pacientes con diagnóstico de demencia con base en el DSM-IV, se les administró solución gotas de galantamina con incremento gradual de la dosis, durante tres meses: 8, 16 y 24 mg/día, evaluando cada mes; tolerabilidad, eventos adversos, se aplicó y evaluó el minimental de Folstein. ...

  5. Neptunium (IV) oxalate solubility

    International Nuclear Information System (INIS)

    The equilibrium solubility of neptunium (IV) oxalate in nitric/oxalic acid solutions was determined at 220C, 450C, and 600C. The concentrations of nitric/oxalic acid solutions represented a wide range of free oxalate ion concentration. A mathematical solubility model was developed which is based on the formation of the known complexes of neptunium (IV) oxalate. the solubility model uses a simplified concentration parameter which is proportional to the free oxalate ion concentration. The solubility model can be used to estimate the equilibrium solubility of neptunium (IV) oxalate over a wide range of oxalic and nitric acid concentrations at each temperature

  6. NNDSS - Table IV. Tuberculosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table IV. Tuberculosis - 2016.This Table includes total number of cases reported in the United States, by region and by states, in accordance with the...

  7. NNDSS - Table IV. Tuberculosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table IV. Tuberculosis - 2015.This Table includes total number of cases reported in the United States, by region and by states, in accordance with the...

  8. NNDSS - Table IV. Tuberculosis

    Data.gov (United States)

    U.S. Department of Health & Human Services — NNDSS - Table IV. Tuberculosis - 2014.This Table includes total number of cases reported in the United States, by region and by states, in accordance with the...

  9. Interplanetary Type IV Bursts

    CERN Document Server

    Hillaris, Alexander; Nindos, Alexander

    2016-01-01

    In this work we study the characteristics of moving type IV radio bursts which extend to the hectometric wavelengths (interplanetary type IV or type IV IP bursts) and their relationship with energetic phenomena on the Sun. Our dataset comprised 48 Interplanetary type IV bursts observed by the Wind/WAVES in the 13.825 MHz?20 KHz frequency range. The dynamic spec tra of the RSTN, DAM, ARTEMIS-IV, CULGOORA, Hiraiso and IZMIRAN Radio-spectrographs were used to track the evolution of the events in the low corona; these were supplemented with SXR ?ux recordings from GOES and CME data from LASCO. Positional information for the coronal bursts were obtained by the Nan\\c{c}ay radioheliograph (NRH). We examined the relationship of the type IV events with coronal radio bursts, CMEs and SXR ?ares. The majority of the events (45) were characterized as compact; their duration was on average 106 min. This type of events were, mostly, associated with M and X class ?ares (40 out of 45) and fast CMEs; 32 of these events had CME...

  10. Gaseous equilibrium in sector CP IV of the Cerro Prieto, B.C. Mexico geothermal field; Equilibrio gaseoso en el sector CP IV del campo geotermico Cerro Prieto, B.C., Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Barragan Reyes, Rosa Maria; Arellano Gomez, Victor Manuel; Portugal Marin, Enrique [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); De Leon Vivar, Jesus [Comision Federal de Electricidad, Campo Geotermico Cerro Prieto, Cerro Prieto, B. C. (Mexico)

    2007-07-01

    Sector CP IV is located in the NE portion of the Cerrro Prieto geothermal field. The wells of this zone produce two-phase fluids, with different characteristics as far as their steam fraction content; in the central part and towards the NW the fluids are of dominant liquid type whereas towards the E and the S, the fluid contains a relatively higher steam fraction. The results of gaseous equilibrium FT- HSH3 showed that the fluids in the deposit are at temperatures between 275 Celsius degrees and 310 Celsius degrees and contain steam fractions between 0.01 and 0.5. The data found for the natural state are aligned in a tendency defined in the diagram FT- HSH3, that suggest the wells receive different proportions from preexisting steam in the deposit, which are mixed with the liquid phase to produce the observed discharges. The present data, besides showing the presence of deposit steam, also indicates the entrance of lower temperature fluid in the central part of sector CP IV. [Spanish] El sector CP IV se localiza en la porcion NE del campo geotermico Cerro Prieto. Los pozos de esta zona producen fluidos bifasicos, con diferentes caracteristicas en cuanto a su contenido de fraccion de vapor: en la parte central y hacia el NW los fluidos son de tipo liquido dominante mientras que hacia el E y hacia el S, el fluido contiene una fraccion relativamente alta de vapor. Los resultados de equilibrio gaseoso FT-HSH3 mostraron que los fluidos en el yacimiento se encuentran a temperaturas de entre 275 grados Celsius y 310 grados Celsius y contienen fracciones de vapor de entre -.01 y .5. Los datos hallados para el estado natural se alinean en una tendencia definida en el diagrama FT-HSH3, que sugiere que los pozos reciben diferentes proporciones de vapor pre-existente en el yacimiento, que se mezclan con fase liquida para producir las descargas que se observan. Los datos actuales, ademas de mostrar la presencia de vapor de yacimiento, tambien indican la entrada de fluidos de

  11. O oraloma da diabetes melitos tipo 1 vs diabetes melitos tipo 2 - um estudo comparativo

    OpenAIRE

    Brás, Vítor Daniel Moreira

    2013-01-01

    A Diabetes Melitos é uma doença de grande prevalência a nível mundial e os seus mecanismos fisiopatológicos não são ainda totalmente conhecidos. Actualmente, a terapêutica seguida em casos de Diabetes Melitos é eminentemente sintomática consistindo na administração de insulina nos casos de Diabetes Melitos tipo 1 ou quando se verifica a falência das células beta do pâncreas de pacientes com Diabetes Melitos tipo 2, ou no controlo da glicemia nos casos de Diabetes Melitos ...

  12. Chemotherapy versus best supportive care in stage IV non-small cell lung cancer, non metastatic to the brain Quimioterapia versus melhor tratamento de suporte em câncer de pulmão estádio clínico IV não metastático para o sistema nervoso central

    Directory of Open Access Journals (Sweden)

    Agnaldo Anelli

    2001-04-01

    Full Text Available Stage IV non-small cell lung cancer is a fatal disease, with a median survival of 14 months. Systemic chemotherapy is the most common approach. However the impact in overall survival and quality of life still a controversy. OBJECTIVES: To determine differences in overall survival and quality of life among patients with stage IV non-small cell lung cancer non-metastatic to the brain treated with best supportive care versus systemic chemotherapy. PATIENTS: From February 1990 through December 1995, 78 eligible patients were admitted with the diagnosis of stage IV non-small cell lung cancer . Patients were divided in 2 groups: Group A (n=31 -- treated with best supportive care , and Group B (n=47 -- treated with systemic chemotherapy. RESULTS: The median survival time was 23 weeks (range 5 -- 153 weeks in Group A and 55 weeks (range 7.4 -- 213 weeks in Group B (p=0.0018. In both groups, the incidence of admission for IV antibiotics and need of blood transfusions were similar. Patients receiving systemic chemotherapy were also stratified into those receiving mytomycin, vinblastin, and cisplatinum, n=25 and those receiving other combination regimens (platinum derivatives associated with other drugs, n=22. Patients receiving mytomycin, vinblastin, and cisplatinum, n=25 had a higher incidence of febrile neutropenia and had their cycles delayed for longer periods of time than the other group. These patients also had a shorter median survival time (51 versus 66 weeks, p=0.005. CONCLUSION: In patients with stage IV non-small cell lung cancer, non-metastatic to the brain, chemotherapy significantly increases survival compared with best supportive care.O câncer de pulmão de células não pequenas em estádio IV é uma doença fatal, com uma sobrevida mediana de seis meses. Quimioterapia é a abordagem mais freqüente, apresentando um impacto na sobrevida controverso e questionável alteração na qualidade de vida. OBJETIVOS: Comparar o impacto na

  13. Interplanetary Type IV Bursts

    Science.gov (United States)

    Hillaris, A.; Bouratzis, C.; Nindos, A.

    2016-08-01

    We study the characteristics of moving type IV radio bursts that extend to hectometric wavelengths (interplanetary type IV or type {IV}_{{IP}} bursts) and their relationship with energetic phenomena on the Sun. Our dataset comprises 48 interplanetary type IV bursts observed with the Radio and Plasma Wave Investigation (WAVES) instrument onboard Wind in the 13.825 MHz - 20 kHz frequency range. The dynamic spectra of the Radio Solar Telescope Network (RSTN), the Nançay Decametric Array (DAM), the Appareil de Routine pour le Traitement et l' Enregistrement Magnetique de l' Information Spectral (ARTEMIS-IV), the Culgoora, Hiraso, and the Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN) Radio Spectrographs were used to track the evolution of the events in the low corona. These were supplemented with soft X-ray (SXR) flux-measurements from the Geostationary Operational Environmental Satellite (GOES) and coronal mass ejections (CME) data from the Large Angle and Spectroscopic Coronagraph (LASCO) onboard the Solar and Heliospheric Observatory (SOHO). Positional information of the coronal bursts was obtained by the Nançay Radioheliograph (NRH). We examined the relationship of the type IV events with coronal radio bursts, CMEs, and SXR flares. The majority of the events (45) were characterized as compact, their duration was on average 106 minutes. This type of events was, mostly, associated with M- and X-class flares (40 out of 45) and fast CMEs, 32 of these events had CMEs faster than 1000 km s^{-1}. Furthermore, in 43 compact events the CME was possibly subjected to reduced aerodynamic drag as it was propagating in the wake of a previous CME. A minority (three) of long-lived type {IV}_{{IP}} bursts was detected, with durations from 960 minutes to 115 hours. These events are referred to as extended or long duration and appear to replenish their energetic electron content, possibly from electrons escaping from the corresponding coronal

  14. Glaucoma secundario a neurofibromatosis tipo-1

    Directory of Open Access Journals (Sweden)

    Anay Martínez Díaz

    2012-02-01

    Full Text Available Paciente de 59 años de edad, con antecedentes de neurofibromatosis tipo 1 y trauma contuso del ojo derecho desde hace años. Acudió a consulta de oftalmología refiriendo disminución lenta de la visión; al examen físico se constató una agudeza visual de 0.6 en ambos ojos, así como disminución concéntrica del campo visual en la perimetría por confrontación. El examen objetivo mostró en los anexos una pingüécula en ojo derecho y pterigion grado II en ojo izquierdo; en segmento anterior, múltiples nódulos de Lisch en el iris de ambos ojos, y en el ojo derecho, pupila ligeramente midriática, pero reactiva. Se le realizó gonoscopia, oftalmoscopia y perimetría Humphry; en esta última se halló un escotoma arqueado en ojo derecho, y un defecto superior arqueado en el ojo izquierdo. Se concluyó el caso con los diagnósticos de catarata presenil incipiente y glaucoma secundario a neurofibromatosis tipo 1.

  15. Manifestações radiológicas da mucopolissacaridose tipo VI

    OpenAIRE

    Turtelli Celso Montenegro

    2002-01-01

    O autor relata as alterações radiológicas da mucopolissacaridose tipo VI (mucopolissacárides VI) observadas em dois irmãos. Foram realizadas radiografias convencionais do esqueleto e estudo por ressonância magnética do sistema nervoso central. As alterações osteoarticulares são bem conhecidas e em geral semelhantes às das outras mucopolissacárides. O estudo por ressonância magnética do sistema nervoso central pode colaborar no diagnóstico diferencial dessas doenças, avaliar a extensão das les...

  16. IV access in dental practice.

    LENUS (Irish Health Repository)

    Fitzpatrick, J J

    2009-04-01

    Intravenous (IV) access is a valuable skill for dental practitioners in emergency situations and in IV sedation. However, many people feel some apprehension about performing this procedure. This article explains the basic principles behind IV access, and the relevant anatomy and physiology, as well as giving a step-by-step guide to placing an IV cannula.

  17. IVS Technology Coordinator Report

    Science.gov (United States)

    Whitney, Alan

    2013-01-01

    This report of the Technology Coordinator includes the following: 1) continued work to implement the new VLBI2010 system, 2) the 1st International VLBI Technology Workshop, 3) a VLBI Digital- Backend Intercomparison Workshop, 4) DiFX software correlator development for geodetic VLBI, 5) a review of progress towards global VLBI standards, and 6) a welcome to new IVS Technology Coordinator Bill Petrachenko.

  18. Marketing produktu Karel IV.

    OpenAIRE

    Mikšů, Šárka

    2009-01-01

    Goal of the thesis Marketing of the product Karel IV. is to propose chanels of marketing communication and indicate possibilities of next product's development. Theoretical part is based on marketing plan and it's partition. In the practical part you can find market analysis and competing products analysis, product's evolution description and marketing research.

  19. Resistência de genótipos de feijoeiro a Bemisia tabaci biótipo B

    OpenAIRE

    Lucas Castro Torres; Brígida Souza; André Luiz Lourenção; Marlice Botelho Costa; Bruno Barbosa Amaral; Sérgio Augusto Morais Carbonell; Alisson Fernando Chiorato; Ricardo Lima Tanque

    2012-01-01

    O estudo de genótipos de feijoeiro resistentes à mosca-branca Bemisia tabaci (Genn.) biótipo B (Hemiptera: Aleyrodidae) é de grande importância devido aos danos ocasionados por essa praga à cultura. Neste trabalho, foram estudados a atratividade para adultos, a preferência para oviposição em testes com e sem chance de escolha, o ciclo ovo-adulto e o tipo e número de tricomas presentes nos folíolos. Os experimentos foram realizados em casa de vegetação avaliando-se, inicialmente, cem genótipos...

  20. Comprometimento medular por linfoma tipo Burkitt: relato de um caso

    Directory of Open Access Journals (Sweden)

    Murillo Côrtes Drummond

    1985-06-01

    Full Text Available Registro de caso de linfoma tipo Burkitt com comprometimento intrarraqueano em criança de três anos de idade. Considerações sobre esse tipo de tumor são feitas em função do caso observado e de dados da literatura.

  1. APLICACIÓN DE LA TECNICA DE IV GAMA PARA LA ELABORACIÓN DE ENSALADAS EVALUATION OF IV GAMA TECHNIQUE TO PREPARE VEGETABLE SALADS

    OpenAIRE

    Auris Damely García Méndez

    2008-01-01

    El propósito de la aplicación de la técnica de IV Gama en la elaboración de ensaladas listas para el consumo fresco, esta dirigido al control del deterioro en lechuga americana (Lactuca sativa), zanahoria (Daucus carota L.), radicchio (Cichorium intybus L.) y escarola (Cichorium endivia L.), destinadas a preparar ensaladas tipo “Mediterránea y Cheff”. La metodología permitió seleccionar y evaluar la técnica de IV Gama, así como las buenas prácticas de manufactura para extender la vida comerci...

  2. A sputnik IV saga

    Science.gov (United States)

    Lundquist, Charles A.

    2009-12-01

    The Sputnik IV launch occurred on May 15, 1960. On May 19, an attempt to deorbit a 'space cabin' failed and the cabin went into a higher orbit. The orbit of the cabin was monitored and Moonwatch volunteer satellite tracking teams were alerted to watch for the vehicle demise. On September 5, 1962, several team members from Milwaukee, Wisconsin made observations starting at 4:49 a.m. of a fireball following the predicted orbit of Sputnik IV. Requests went out to report any objects found under the fireball path. An early morning police patrol in Manitowoc had noticed a metal object on a street and had moved it to the curb. Later the officers recovered the object and had it dropped off at the Milwaukee Journal. The Moonwarch team got the object and reported the situation to Moonwatch Headquarters at the Smithsonian Astrophysical Observatory. A team member flew to Cambridge with the object. It was a solid, 9.49 kg piece of steel with a slag-like layer attached to it. Subsequent analyses showed that it contained radioactive nuclei produced by cosmic ray exposure in space. The scientists at the Observatory quickly recognized that measurements of its induced radioactivity could serve as a calibration for similar measurements of recently fallen nickel-iron meteorites. Concurrently, the Observatory directorate informed government agencies that a fragment from Sputnik IV had been recovered. Coincidently, a debate in the UN Committee on Peaceful Uses of Outer Space involved the issue of liability for damage caused by falling satellite fragments. On September 12, the Observatory delivered the bulk of the fragment to the US Delegation to the UN. Two days later, the fragment was used by US Ambassador Francis Plimpton as an exhibit that the time had come to agree on liability for damage from satellite debris. He offered the Sputnik IV fragment to USSR Ambassador P.D. Morozov, who refused the offer. On October 23, Drs. Alla Massevitch and E.K. Federov of the USSR visited the

  3. Miocardiopatía tipo Takotsubo

    Directory of Open Access Journals (Sweden)

    Juan José Ramírez Chaves

    2014-06-01

    Full Text Available La miocardiopatía adquirida de tipo Takotsubo ha sido descrita desde 1991 en pacientes principalmente del género feme­nino, post menopáusicas, quienes posterior a un evento estresante físico o psicológico asocian clínica de dolor precordial, con cambios electrocardiográficos, alteraciones transitorias de contractilidad de predominio anteroapical del ventrículo izquierdo (VI y elevación de los biomarcadores cardiacos, en ausencia de una enfermedad arterial coronaria (EAC aguda como mecanismo desencadenante del cuadro. La fisiopatología no ha sido completamente dilucidada pero existe con­senso sobre la acción tóxica de las catecolaminas sobre el miocardio. El pronóstico es variable y va desde dolor, insuficien­cia cardiaca, choque cardiogénico hasta, la muerte; por lo tanto, constituye un desafío en el diagnóstico diferencial de las causas no ateroescleróticas generadoras de un síndrome coronario agudo (SCA.

  4. en pacientes con demencia tipo Alzheimer

    Directory of Open Access Journals (Sweden)

    Manuel Alejandro Cruz-Aguilar

    2013-01-01

    Full Text Available El objetivo del presente estudio fue determinar los efectos de 5 mg. de melatonina de liberación inmediata sobre la macro-arquitectura del sueño en ocho pacientes con diagnóstico de Demencia Tipo Alzheimer (DTA de media a moderada. Utilizando la técnica polisomnográfica (PSG se realizó un estudio simple ciego, no aleatorio, controlado con placebo. Los registros PSG se llevaron a cabo de la siguiente manera: Noche 1: administración de placebo; noche 2 y 3: administración continua de melatonina (5 mg. Observamos que el tratamiento con melatonina durante la primera noche de administración disminuyó significativamente la latencia de la fase 2, del sueño de ondas delta y el sueño de MOR al ser comparadas con el placebo (P ≤.05. No se observaron diferencias significativas en el tiempo total de cada fase de sueño; tampoco se observaron diferencias en la eficiencia del sueño en presencia de la melatonina. Sin embargo se observó una tendencia a la disminución del tiempo total de vigilia y un aumento del tiempo total de sueño, principalmente durante la segunda noche de tratamiento. Concluimos que la melatonina puede mejorar el sueño en pacientes con DTA de media a moderada.

  5. La articulación del espacio doméstico en las casas de patio central. Un estudio para el Noreste peninsular ibérico entre los siglos IV - II a. C.

    Directory of Open Access Journals (Sweden)

    Fernández García, Gloria

    2015-12-01

    Full Text Available In this paper we approach a diachronic comparative study through space syntax analysis methodology of a set of courtyard houses from the East of the Iberian Peninsula dated between the IVth century and the IInd B.C., period previous and immediately to the beginning of Roman domination of these regions. These big complex houses with courtyard have been interpreted as the residences of minority powerful groups, that is to say, local aristocracy. In view of this, we shall try to study the evolution of this social class during this period characterized by economic and politic changes. Domestic space syntax analyses allows us to see the consequences of the adoption of formal changes in houses, for the social relationships. The high syntactic complexity observed in protohistorical houses is the main difference between these and roman houses.Presentamos un estudio comparativo diacrónico a través de la metodología analítica de la sintaxis espacial de un conjunto de casas de patio del este de la Península Ibérica datadas entre el siglo IV y el II a. C., periodo anterior e inmediatamente posterior al inicio de la conquista romana de esta región. Estas grandes casas complejas y con patio han sido interpretadas como las residencias de grupos minoritarios y poderosos: las aristocracias locales. A partir de esta idea trataremos de conocer el comportamiento y evolución de esta clase social durante el periodo de cambio que abordamos. La aplicación de un análisis sintáctico del espacio sobre una serie de casos nos ha permitido conocer las diferentes connotaciones que pueden adquirir las casas con patio. La principal diferencia entre las casas prerromanas e hispanorromanas está marcada por la mayor complejidad sintáctica de las primeras, que procede de las formas de la tradición indígena.

  6. Preanuncio del Tipo de Cambio y Desempleo Keynesiano Preanuncio del Tipo de Cambio y Desempleo Keynesiano

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    Martín Rama

    1986-03-01

    Full Text Available Preanuncio del Tipo de Cambio y Desempleo Keynesiano In 1978, Argentina, Chile and Uruguay adopted a stabilization policy based on exchange rate preannouncement. The aim of this paper is to study the consequences of such a policy from a analytical point of view. The paper stands on a two-sector disequilibrium model, in which there is a price level inertia in the labor market as well as in the non·traded goods market. Themain stylized facts are reproduced. It is shown, particularly, that the exchange rate preannouncement had to give rise to an economic boom first, and a keynesian unemployment situation later.

  7. Fundamentos del tipo de cambio real de equilibrio

    OpenAIRE

    Colque H., Paul

    2006-01-01

    El presente trabajo pretende evaluar el comportamiento del tipo de cambio real de equilibrio a través de sus fundamentos (Términos de intercambios, activos externos netos, grado de apertura comercial, flujo de capitales y tasa de interés internacional), y así poder determinar el grado de desalineamiento del tipo de cambio real respecto a su nivel de equilibrio. Los resultados obtenidos indican que entre el año 1990 – 2003 (tercer trimestre) el tipo de cambio real ha tenido desalineamientos no...

  8. Política monetaria no convencional y tipo de cambio

    OpenAIRE

    Fernández Fernández, Natalia

    2015-01-01

    Este trabajo examina el impacto sobre el tipo de cambio dólar estadounidense-euro de las medidas de política monetaria no convencional llevadas a cabo por la Reserva Federal Estadounidense y el Banco Central Europeo, tras el agotamiento de los instrumentos de política monetaria tradicionales, en un contexto de crisis financiera global. Para ello, se emplean tanto la metodología de casos para la evaluación del impacto en torno a la fechas de anuncio de las diferentes medidas de política moneta...

  9. Type IV collagen

    International Nuclear Information System (INIS)

    Type IV collagen is a highly specialized form of collagen found only in basement membranes. It is one of the major components of all basement membranes together with the glycoproteins laminin, nidogen, entactin, and heparan sulfate proteoglycan. Basement membranes are ubiquitous, thin, sheetlike structures found frequently under epithelial and endothelial cell linings but also surrounding many cell types such as muscle, nerve, and fat. They function as a selective filtration barrier for macromolecules, for example, in the kidney, blood--brain barrier, and placenta, but also separate extracellular matrix from epithelial or endothelial cell layers as in gut, skin, cornea, lung, and blood vessels. Indications that basement membranes contained a collagen came from X-ray studies of intact basement membranes as early as 1951. Later, hydroxyproline and then hydroxylysine were detected in amino acid compositions of whole basement membranes. Because of the insolubility of basement membrane components, attempts were made to solubilize the collagen using Pronase, a method that had proved useful for type I collagen. The material that was isolated and characterized was clearly different from the other interstitial collagens known at that time, i.e., α1(I), α1(II), and α1(III). Basement membrane collagen was therefore designated type IV collagen

  10. Resistência de genótipos de feijoeiro a Bemisia tabaci biótipo B

    Directory of Open Access Journals (Sweden)

    Lucas Castro Torres

    2012-01-01

    Full Text Available O estudo de genótipos de feijoeiro resistentes à mosca-branca Bemisia tabaci (Genn. biótipo B (Hemiptera: Aleyrodidae é de grande importância devido aos danos ocasionados por essa praga à cultura. Neste trabalho, foram estudados a atratividade para adultos, a preferência para oviposição em testes com e sem chance de escolha, o ciclo ovo-adulto e o tipo e número de tricomas presentes nos folíolos. Os experimentos foram realizados em casa de vegetação avaliando-se, inicialmente, cem genótipos de feijoeiro. A resistência do tipo não-preferência para alimentação e/ou antibiose foi observada nos genótipos ARC-3, IAC-Alvorada e Canário 101, sendo a emergência de adultos fortemente influenciada pelos genótipos. Também se observou correlação negativa moderada entre o número de ovos e o número de tricomas glandulares, e correlação positiva muito forte entre o número de ovos e o número de tricomas tectores unciformes.

  11. Genetics Home Reference: mucopolysaccharidosis type IV

    Science.gov (United States)

    ... Understand Genetics Home Health Conditions mucopolysaccharidosis type IV mucopolysaccharidosis type IV Enable Javascript to view the expand/ ... boxes. Print All Open All Close All Description Mucopolysaccharidosis type IV (MPS IV), also known as Morquio ...

  12. Fenótipo Rett em paciente com cariótipo XXY: relato de caso

    Directory of Open Access Journals (Sweden)

    SCHWARTZMAN JOSÉ SALOMÃO

    1998-01-01

    Full Text Available Relatamos o caso de um menino com cariótipo XXY que apresenta desordem neurológica progressiva com início por volta dos 11 meses de idade, com estagnação do desenvolvimento seguida de regressão. A criança apresenta, ainda, movimentos estereotipados de mãos, apraxia manual e microcefalia. Investigações não constataram presença de qualquer condição neurológica ou sistêmica definida que pudesse ser apontada como possível etiologia para o quadro descrito. Trata-se de menino com alterações fenotípicas muito similares àquelas consideradas típicas para a síndrome de Rett que, associadas com a alteração cromossômica constatada (cariótipo XXY, constituem quadro de evidente interesse científico.

  13. Nuevo tipo de apoyos y articulaciones

    Directory of Open Access Journals (Sweden)

    Andrä, Fritz Leonhardt

    1963-11-01

    of theoretical and technical difficulties inherent in these bearings: they also express acknowledgement to German individuals and institutions, for their contribution to this investigation.Las tendencias actuales son funciones que dependen directamente de la presencia creciente y mejorada de los materiales de construcción que se ofrecen al comercio. En el campo de los materiales cabe una marcada subdivisión en naturales y preparados o sintéticos; estos últimos constituyen la preocupación de los autores para su aprovechamiento y adecuada aplicación. De entre ellos, las resinas sintéticas o caucho artificial, dentro de las distintas especies de la extensa familia han gozado de un lugar preferente en este estudio de nuevos tipos de apoyos que presentan los notables ingenieros alemanes Wolfhart Andrä y Fritz Leonhardt. En los ensayos de laboratorio y a escala natural, las variedades comerciales de estas resinas, conocidas con los nombres de «neopreno» y «Teflon», han sido elegidas por presentar, por lo menos actualmente, características marcadamente apropiadas a la finalidad perseguida en este estudio, del que se confía ulterior desarrollo y mejor acogida, por las importantes aplicaciones que de él se derivan en el campo de la ingeniería y construcción. Los autores estudian con detenimiento y sobrado rigor para las aplicaciones prácticas las deformaciones que de estos materiales se espera al someterlos a fuerzas de gran concentración. En los apoyos juega particular interés la distribución de la carga siempre concentrada en superficies relativamente pequeñas, lo que exige elevadas cargas unitarias y, con ello, la utilización de materiales extremadamente nobles para resistirlas con la resistencia que las deformaciones instantáneas requieren para recobrar rápidamente la posición de estabilidad perdida momentáneamente. La fatiga en el ciclo de deformaciones relaja los materiales, y ha de tenerse presente al considerar las características que los

  14. Tipos do Herbário Prisco Bezerra - EAC

    OpenAIRE

    Maria Stela Bezerra da Silva; Cláudia Regina Chagas Pompeu; Francisca Simões Cavalcante; Afrânio Fernandes

    1990-01-01

    Com o presente trabalho pretende-se contribuir para a divulgação dos tipos do Herbário Prisco Bezerra - EAC. Um levantamento realizado no acervo do Herbário revelou o registro de dez tipos. Sete deles pertencentes à família Leguminosae distribuídas entre as subfamilias Caesalpinioideae: Peltogyne crenulata, Sentia dardanoi, Moldenhawera acuminata, Chamaecrista duckeana, Papilionoideae: Aeschynomene monteiroi, Cranocarpus gracilis e Mimosoideae: Mimosa niomarlei; dois, pertencentes à família E...

  15. Diaquatetrabromidotin(IV trihydrate

    Directory of Open Access Journals (Sweden)

    Fei Ye

    2012-09-01

    Full Text Available The title compound, [SnBr4(H2O2]·3H2O, forms large colourless crystals in originally sealed samples of tin tetrabromide. It constitutes the first structurally characterized hydrate of SnBr4 and is isostructural with the corresponding hydrate of SnCl4. It is composed of SnIV atoms octahedrally coordinated by four Br atoms and two cis-related water molecules. The octahedra exhibit site symmetry 2. They are arranged into columns along [001] via medium–strong O—H...O hydrogen bonds involving the two lattice water molecules (one situated on a twofold rotation axis while the chains are interconnected via longer O—H...Br hydrogen bonds, forming a three-dimensional network.

  16. Mangan(IV)-Polyolato-Komplexe

    OpenAIRE

    Marinov, Danira

    2001-01-01

    In dieser Arbeit werden die ersten röntgenographisch charakterisierten Kristallstrukturen von Mangan(IV)-Polyolato-Komplexen vorgestellt (1–11, 13). Ausgehend von Mangan(II) wird mittels zwei Äquivalenten Kaliumhexacyanoferrat(III) die Oxidationsstufe +IV erreicht. Alle Komplexe entstehen aus wäßriger, stark alkalischer Lösung. Die Kristallisation erfolgt in der Kälte, da Mangan(IV)-Komplexe bei Raumtemperatur innerhalb eines Tages zu Mangan(III) reduziert werden. M...

  17. dBASE IV basics

    Energy Technology Data Exchange (ETDEWEB)

    O`Connor, P.

    1994-09-01

    This is a user`s manual for dBASE IV. dBASE IV is a popular software application that can be used on your personal computer to help organize and maintain your database files. It is actually a set of tools with which you can create, organize, select and manipulate data in a simple yet effective manner. dBASE IV offers three methods of working with the product: (1) control center: (2) command line; and (3) programming.

  18. Yksipatterisen iv-kojeen energiatehokkuus

    OpenAIRE

    Orava, Jarmo

    2014-01-01

    Tehtävänä opinnäytetyössä oli tutkia Mikkelin kauppakeskus Stellan kahden eri yksipatterisen iv-kojeen energiatehokkuutta. Tutkimuksessa tarkasteltiin energiatehokkuuden lisäksi myös sitä, kuinka iv-kojeet oikeasti toimivat. Lähes samankaltaisten iv-kojeiden vertailu antoi varmuutta niiden toimivuudesta ja energiatehokkuudesta. Iv-kojeissa lämmöntalteenotto poistoilmasta tuloilmaan tapahtuu pyörivillä lämmönsiirtimillä ja lämmityspattereissa hyödynnetään lauhdelämpöä, joka syntyy kaupan kylmä...

  19. Fenótipo Rett em paciente com cariótipo XXY: relato de caso

    OpenAIRE

    SCHWARTZMAN JOSÉ SALOMÃO; SOUZA ANGELA MARIA COSTA DE; FAIWICHOW GUIDO; HERCOWITZ LUIZ HENRIQUE

    1998-01-01

    Relatamos o caso de um menino com cariótipo XXY que apresenta desordem neurológica progressiva com início por volta dos 11 meses de idade, com estagnação do desenvolvimento seguida de regressão. A criança apresenta, ainda, movimentos estereotipados de mãos, apraxia manual e microcefalia. Investigações não constataram presença de qualquer condição neurológica ou sistêmica definida que pudesse ser apontada como possível etiologia para o quadro descrito. Trata-se de menino com alterações fenotíp...

  20. Digital implementation, simulation and tests in MATLAB of the models of Steam line, the turbines, the pressure regulator of a BWR type nucleo electric power plant; Implementacion digital, simulacion y pruebas en MATLAB de los modelos de la linea de vapor, las turbinas y el regulador de presion de una central Nucleoelectrica tipo BWR

    Energy Technology Data Exchange (ETDEWEB)

    Lopez R, A. [UNAM, Laboratorio de Analisis de Ingenieria de Reactores Nucleares, DEPFI, Campus Morelos, en IMTA Jiutepec, Morelos (Mexico)]. e-mail: andyskamx@yahoo.com.mx

    2004-07-01

    In this phase of the project they were carried out exhaustive tests to the models of the steam lines, turbines and pressure regulator of a BWR type nucleo electric central for to verify that their tendencies and behaviors are it more real possible. For it, it was necessary to also analyze the transfer functions of the different components along the steam line until the power generator. Such models define alone the dominant poles of the system, what is not limitation to reproduce a wide range of anticipated transitoriness of a power station operation. In the same manner, it was integrated and proved the integrated model form with the models of feeding water of the SUN-RAH, simulating the nuclear reactor starting from predetermined entrances of the prospective values of the vessel. Also it was coupled with the graphic interface developed with the libraries DirectX implementing a specific monitoring panel for this system. (Author)

  1. Changes in reactivity and in the margins to thermal limits by the inclusion of control rods of advanced type in the Laguna Verde Power plant; Cambios en la reactividad y en los margenes a limites termicos por la inclusion de barras de control de tipo avanzado en la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez, J.L.; Perusquia, R.; Montes, J.L.; Ortiz, J.J.; Ramirez, J.R. [ININ, Depto. de Sistemas Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)]. E-mail: jlhm@nuclear.inin.mx

    2004-07-01

    The obtained results are presented when simulating with CM-PRESTO code the cycle 10 of the unit 1 of the Laguna Verde Central, using two advanced types of control bars, besides the originally loaded ones. The two advanced types, to those that are denominated 1AV and 2AV in this work, are of different design, however both have in some place of the bar, a section with hafnium like neutron absorber material. They thought about three different scenarios, in the first one, used as reference, is simulated the cycle 10 using the original control bars, while in the other two cases the advanced types are used. The values of the reactivity were compared and of some margins to the thermal limits obtained when using the bars of advanced type, with those obtained in the case in that alone they are considered those original bars. It was found that in condition of power both advanced types present bigger absorber power of neutrons that the original bars, being quantified in average this bigger power in 0.22 pcm/notch for the type 1AV and in 0.51 pcm/notch for the type 2AV. The affectation of the margins to the observed thermal limits is minimum. (Author)

  2. The Modern RPG IV Language

    CERN Document Server

    Cozzi, Robert

    2006-01-01

    This updated, classic work on the RPG language covers all the new functions and features that have been added since 2003, including new op codes and built-in functions, new chapters on free-format RPG IV and Web programming interfaces, information on implementing XML within RPG IV, and expanded information on procedures. This reference guide takes both novice and experienced RPG IV programmers through the language, from its foundation to its most advanced techniques. More than 100 charts and tables, as well as 350 real-life code samples of functions and operations are included, showing readers

  3. Neoplasia endocrina múltiple tipo-2b

    OpenAIRE

    Lastra, Guido; de Franco, Roberto; Rueda P., Pedro Nel; Pradilla S., Lina P.; Paz C., Óscar

    2014-01-01

    La neoplasia endocrina multiple tipo 2 comprendetres sindromes : la neoplasia endocrina múltiple2A con predisposición genética para desarrollarcarcinoma medular del tiroides,feocromocitoma e hiperplasia primaria deparatiroides. La neoplasia endocrina múltiple 2B,desorden autosómico dominante con feocromocitomay carcinoma medular del tiroides quegeneralmente se presenta a una edad más tempranay es más agresivo que la de tipo 2A, porlo que su diagnóstico precoz es crítico; estospacientes, que t...

  4. Compatibilidad sexual entre dos tipos de Hylocerus (Cactaceae)

    OpenAIRE

    Roberta Castillo M.; Manuel Livera M.; Alicia E. Brechú F.; Judith Márquez-Guzmán

    2003-01-01

    Dos de los tipos de pitahaya mas cultivados en la Península de Yucatán, México, difieren principalmente por el color de su cáscara, el primero es de color rojo (Uqroo1), perteneciente a Hylocereus undatus, mientras que en el segundo es color amarillo claro (Uqroo2), hasta el momento también identificado como H. undatus; este último es mas dulce. En ambos tipos de pitahayas, se realizaron autopolinizaciones y polinizaciones cruzadas directas y recíprocas, con el propósito de evaluar el efecto ...

  5. Os distúrbios alimentares na diabetes mellitus tipo 1

    OpenAIRE

    Pereira, Inês Sofia Soares

    2013-01-01

    Introdução: A diabetes mellitus tipo 1 e os distúrbios alimentares são doenças frequentes na adolescência. Em ambas as condições, os pacientes dão uma grande importância ao peso corporal e à dieta. Assim, estima-se que os pacientes com diabetes mellitus tipo 1 tenham uma grande vulnerabilidade para o desenvolvimento de distúrbios alimentares (incluindo a diabulimia, um comportamento compensatório particular), que podem ter repercussões significativas na sua qualidade de vida. Os objectivos de...

  6. Central móvil de hormigón asfáltico

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1959-11-01

    Full Text Available En números anteriores se han publicado varios tipos de centrales hormigoneras, y entre ellas una para la preparación de hormigones asfálticos. El tipo de Central que se describe ligeramente en este trabajo, de la casa Braham Patterson & Benham Ltd, inglesa, presenta su particularidad propia e interés dentro del campo de rendimiento de producción del orden de 25 toneladas por hora.

  7. Reimplante intencional en diente geminado con lesión endoperio tipo IV: Reporte de caso Intentional replantation gemina injured in tooth type IV endoperio: Case report

    Directory of Open Access Journals (Sweden)

    R.S. Rodríguez Rodríguez

    2012-10-01

    Full Text Available En los dientes con geminación y lesiones periapicales no resueltas después de un tratamiento endodóntico se debe pensar no solo en un diagnostico endodóntico sino también periodontal, ya que estos dientes en el intento de separación pueden presentar surcos o fisuras que van desde el borde incisal hasta la raíz convirtiéndose en un canal de comunicación entre la zona apical y la cavidad oral. Para realizar el plan de tratamiento se debe tener en cuenta: sintomatología persistente, posterior a la terapia endodóntica, persistencia de fístula, lesión periapical de gran tamaño, bolsa periodontal, anatomía radicular palatina del órgano dentario (presunto canal palatino, y que la anatomía del diente sea favorable para realizar el procedimiento. La extracción y reimplante intencional es el tratamiento indicado en casos donde el tratamiento endodóntico fracasa y por la anomalía dental, la cirugía periapical también fallaría porque solo se eliminaría la lesión momentáneamente más no la que lo causa que es la comunicación entre la cavidad oral y la zona apical. Sin embargo, se sabe que esta opción de tratamiento puede traer riesgos y beneficios, incluyendo pérdida del diente o una posible anquilosis y con una de tasa de éxito del 42,9%. El presenta caso clínico describe la extracción y reimplante intencional en un diente geminado con una lesión periapical persistente de origen periodontal, con sintomatología y fístula, posterior a tratamiento endodóntico complejo, su evolución y éxito.In teeth with gemination and unresolved periapical lesions after endodontic treatment we must think not only in diagnosis but also periodontal endodontic, as these teeth in the attempt of separation may have grooves or cracks that go from the incisal edge to root becoming a channel of communication between the apical and oral cavity. To make the treatment plan should take into account: persistent symptoms, after endodontic therapy, persistent fistula, large periapical lesions, periodontal pocket, root anatomy of the tooth organ palate (palatine canal alleged and that the anatomy tooth is favorable to perform the procedure. The extraction and intentional replantation is the treatment in cases where the endodontic treatment fails and the anomaly dental periapical surgery also fail because only temporarily remove the lesion but not the cause it is the communication between the oral cavity and apical area. However, it is known that this treatment option can have risks and benefits, including tooth loss or possible ankylosis and with a success rate of 42.9%. The present case report describes the extraction and intentional replantation geminate tooth with a persistent periapical lesion of periodontal origin, with symptoms and fistula, after endodontic treatment complex, its evolution and success.

  8. Comparación de curvas de tipos de interés. Efectos de la integración financiera

    OpenAIRE

    Ruiz Dotras, Elisabeth

    2005-01-01

    [spa] La estimación de curvas de tipos de interés y su análisis a lo largo de la última década constituyen el núcleo central de esta tesis. Dentro de un proceso de integración económica y monetaria en el seno de la Unión Europea y en un mercado financiero cada vez más globalizado, la variable tipo de interés es especialmente relevante para manifestar ambos acontecimientos. La finalidad del trabajo es la contrastación empírica de la convergencia del tipo de interés y la velocidad con la que se...

  9. CARACTERIZAÇÃO PÓS-COLHEITA E SENSORIAL DE GENÓTIPOS DE BANANEIRAS TIPO PRATA

    Directory of Open Access Journals (Sweden)

    ARIANE CASTRICINI

    2015-03-01

    Full Text Available RESUMO O norte de Minas Gerais é grande produtor de banana ‘Prata-Anã’ irrigada, cultura altamente suscetível ao Mal-do-Panamá. O uso de genótipos resistentes é uma alternativa, mas os frutos devem apresentar características pós-colheita o mais próximo possível da ‘Prata-Anã’, para melhor aceitação pelos consumidores. O objetivo do trabalho foi caracterizar frutos em pós-colheita, identificar a preferência e a intenção de compra de diferentes genótipos de bananeira tipo Prata. Os genótipos Prata-Anã, BRS Platina e Fhia-18. foram caracterizados no ponto de colheita (verdes e maduros (estádio seis de maturação, por avaliações químicas, físicas e sensoriais. Quando verde, ‘BRS Platina’ apresentou maior massa fresca e tamanho que ‘Fhia-18’ e ‘Prata-Anã’. ‘Fhia-18.’ teve a tonalidade verde da casca mais intensa que a dos demais genótipos. Madura, ‘BRS Platina’ foi mais firme, mas com a mesma resistência ao despencamento que ‘Fhia-18’ e superior à ‘Prata-Anã’. ‘Fhia-18’ apresentou cor da casca com amarelo mais clara e tão brilhante quanto da ‘Prata-Anã’, mas ‘BRS Platina’ teve a tonalidade de amarelo mais intensa. Bananas ‘Fhia-18’ foram mais ácidas, ‘BRS Platina’, com menor acidez titulável, e ‘Prata-Anã’, o maior teor de sólidos solúveis. Os genótipos Prata-Anã e BRS Platina tiveram maior preferência e intenção de compra pelos consumidores, sendo as bananas ‘Prata-Anã’ em dedos e ‘BRS Platina’ e ‘Fhia-18’ em dedos, buquê e penca, as mais preferidas. Entretanto, a maioria compraria bananas ‘Prata-Anã’ em buquê e ‘BRS Platina’ e ‘Fhia-18’ em penca. Enquanto verdes, os genótipos foram semelhantes à ‘Prata-Anã’, e maiores diferenças químicas e físicas ocorreram quando maduros.

  10. Characterization of Caramel Colour IV.

    Science.gov (United States)

    Licht, B H; Shaw, K; Smith, C; Mendoza, M; Orr, J; Myers, D V

    1992-05-01

    A large number of commercial Caramel Colour IV samples were characterized in order to assess the uniformity of the class and to provide data to be used in specifications development. Owing to the chemical and physical complexity of caramel colour it was not feasible to perform detailed analysis of all constituents for assessment of uniformity. Instead, selected parameters were evaluated and judgements were made with respect to compositional uniformity based on the similarities of these parameters among the various samples. As Caramel Colour IV is required by the food industry in a range of colour intensities, there must be a range of properties that differ from sample to sample, but that are sufficiently similar for the material to still be considered as part of the Caramel Colour IV class. Fractions as well as whole caramel were analysed using selected spectrophotometric, chromatographic and chemical techniques. Samples were fractionated based on molecular weight and polarity. The data presented here provide evidence for the uniformity in composition of Caramel Colour IV with respect to molecular weight distribution, to nitrogen and sulphur content and their distribution throughout the fractions, to absorbance properties and to specific low molecular weight compounds. Thus, it can be concluded that Caramel Colour IV exhibits compositional uniformity within the range of colour intensity required by the food industry worldwide. PMID:1644377

  11. Free-format RPG IV

    CERN Document Server

    Martin, Jim

    2013-01-01

    This how-to guide offers a concise and thorough introduction to the increased productivity, better readability, and easier program maintenance that comes with the free-format style of programming in RPG IV. Although free-format information is available in IBM manuals, it is not separated from everything else, thereby requiring hours of tedious research to track down the information needed. This book provides everything one needs to know to write RPG IV in the free-format style, and author Jim Martin not only teaches rules and syntax but also explains how this new style of coding has the pot

  12. Liikuntaseminaaripäivä

    OpenAIRE

    Huttunen, Kirsi; Lahtinen, Sari

    2009-01-01

    Kehittämistehtävä on jatkoa opinnäytetyöllemme. Kehittämistehtävän tarkoituksena oli suunnitella esitys opinnäytetyön tuloksista Liiku Mieli Hyväksi -hankkeen järjestämään liikuntaseminaaripäivään sekä raportoida esityksen suunnittelu, toteuttaminen ja lyhyt arviointi. Seminaaripäivä järjestettiin 16.12.2008 Kajaanissa. Osanottajia oli yhteensä 13. Osanottajat olivat Liiku Mieli Hyväksi -hankkeen toimijoita, liikuntaryhmien ohjaajia, ammattikorkeakoulun opiskelijoita sekä yksi mie...

  13. Os microorganismos orais e o oraloma da diabetes tipo 2

    OpenAIRE

    Moreira, Patrícia Maria Iria

    2013-01-01

    Os estudos experimentais no âmbito da proteómica de tecidos orais fornecem-nos dados que permitem compreender os mecanismos moleculares, os perfis de expressão proteica, a sua regulação, a presença de modificações pós-tradução e as vias de sinalização modificadas na Diabetes Melitos tipo 2. O presente trabalho tem como objetivo verificar a relação das proteínas microbianas existentes na cavidade oral de pacientes com Diabetes Melitos tipo 2 com o estado de glicosilação das p...

  14. Ejemplares tipo de mamíferos en colecciones cubanas

    OpenAIRE

    Ramos García, Ignacio; Borroto Páez, Rafael

    2000-01-01

    Se brinda información sobre los ejemplares tipo (50 holotipos y sus paratipos) de mamíferos (Xenarthra, Insectivora, Chiroptera, Primates, Carnivora, Sirenia y Rodentia) depositados en siete colecciones cubanas. En las fichas de los holotipos se incluye la información de la descripción original y además se hacen actualizaciones y correcciones sobre este material. Information on the type specimens (50 holotypes and their paratypes) of mammals (Xenarthra, Insectivora, Chiroptera, Primates, C...

  15. Desigualdades sociales y tipos de territorios en Chile

    OpenAIRE

    2013-01-01

    Las desigualdades sociales en Chile incluyen desigualdades territoriales que permanecen no observadas cuando se enfoca exclusivamente las regiones administrativas. Un conjunto entrelazado de tipos de territorios representativos del proceso de urbanización en un nivel subregional, es propuesto para el estudio de las desigualdades sociales desde una perspectiva territorial. Un territorio es delimitado por un mercado de trabajo común, lo que es medido por la conmutación o movilidad territorial.

  16. Grenada; Staff Report for the 2002 Article IV Consultation

    OpenAIRE

    International Monetary Fund

    2003-01-01

    This 2002 Article IV Consultation highlights that real GDP of Grenada declined by 3 percent in 2001, reflecting the global slowdown, completion of most of the large infrastructure and tourism projects, and the effects on tourism of the September 11 attacks in the United States. The fiscal situation deteriorated markedly in 2001 with the central government deficit rising to 8.5 percent of GDP. For 2002, despite damage to crops and infrastructure caused by a tropical storm in September, economi...

  17. Synthesis and magnetism of μ-dioximato-bridged heterotrinuclear oxovanadium (IV)-palladium(II)-oxovanadium(IV) complexes

    International Nuclear Information System (INIS)

    Four novel oxovanadium (IV)-palladium(II)-oxovanadium(IV) complexes heterotrinuclear complexes of the formula [(VO)2Pd(α-FD)2L2]SO4 where (α-FD)2- represents α-furildioximato and L denotes: 5-methyl-1,10-phenanthroline (Me-phen), 2,9-dimethyl-1,10-phenanthroline 5-chloro-1,10-phenanthroline (Cl-phen) and 5-bromo-1,10-phenanthroline (Br-phen), have been synthesized and characterized by elemental analyses, molar conductance and magnetic moments of room-temperature measurements, IR and electronic spectral studies. It is proposed that these complexes have extended dioximato-bridged structures and consists of two oxovanadium(IV) and the palladium(II) ions, In which the central palladium(II) ion has a square-planar environment end the end capped two oxovanadium(IV) ions have a square-pyramidal environment. The magnetic properties of complexes [(VO)2Pd(α-FD)2(Me-Phen)2]SO4 (1) and [(VO)2Pd(α-FD)2(Me2-Phen)2]SO4 (2)were investigated over the 4.2∼300 K range and correspond to what is expected for an antiferromagnetic VO(IV)-VO(IV) pair with SVO(IV) = 1/2 and SPd(II) = 0 (Pd2+ is a diamagnetic in a square-planar environment) local spins. The exchange integral (J) was evaluated as J = -7.28 cm-1 for (1) and J = -6.19 cm-1 for (2) based on Hamiltonian operator, H = -JS1S2. (author)

  18. 11. IV avati Draakoni galeriis...

    Index Scriptorium Estoniae

    2005-01-01

    Tanel Saare (sünd. 1979) näitus "Gott und huhn episode IV: seed shower". Eksponeeritakse väljavõtteid aktsioonidest aastatel 2000-2004 Turus, Nürnbergis, Berliinis, Lohusalus ja Soulis. Osa aktsioone toimus koos rühmitusega Non Grata

  19. Title IV: Improving Indian Education.

    Science.gov (United States)

    Barker, Kipp A.

    The Indian Education Act of 1972, Title IV, has improved Native American education by emphasizing Native American control; it comes after 400 years of Euro-American involvement in Indian education during which assimilation was the primary goal. In 1568 Jesuit priests began "civilizing" and Christianizing the "savage" Indians; in 1794 the first…

  20. Rankings em educação: tipos, problemas, informações e mudanças

    Directory of Open Access Journals (Sweden)

    Eduardo de Carvalho Andrade

    2011-06-01

    Full Text Available Este trabalho classifica os diferentes tipos existentes de rankings na educação, bem como aponta problemas encontrados e apresenta contribuições para resolução dos mesmos. Sobre os principais rankings oficiais brasileiros conclui-se que: (i O MEC tem uma política distinta para o ranking no Ensino Superior vis-à-vis ao do Ensino Médio - no primeiro ele estima o valor adicionado e preocupa-se em inibir comportamentos oportunísticos; (ii foco nos resultados do Enem/Enade pode levar a um alvo diferente da qualidade da educação; (iii a escolha ad hoc dos pesos componentes do ranking da graduação torna questionável a sua utilização; (iv é importante o fornecimento dos intervalos de confiança dos valores adicionados estimados.

  1. Mucolipidosis Type IV: an Update

    OpenAIRE

    Wakabayashi, Kazuyo; Gustafson, Ann Marie; Sidransky, Ellen; Goldin, Ehud

    2011-01-01

    Mucolipidosis type IV (MLIV) is a neurodevelopmental as well as neurodegenerative disorder with severe psychomotor developmental delay, progressive visual impairment, and achlorydria. It is characterized by the presence of lysosomal inclusions in many cell types in patients. MLIV is an autosomal recessive disease caused by mutations in MCOLN1, which encodes for mucolipin-1, a member of the transient receptor potential (TRP) cation channel family. Although approximately 70-80% of patients iden...

  2. Excitation of heliumlike B IV

    Science.gov (United States)

    Kolk, K.-H.; Koenig, R.; Kunze, H.-J.

    1986-01-01

    Measurements are reported for line-intensity ratios emitted from heliumlike B IV ions in a plasma with electron density, N(e) = 1.5 x 10 to the 16th/cu cm and electron temperature, kT(e) = 175 eV. The plasma was produced in a theta-pinch discharge. The analysis supports theoretical excitation rates calculated in the distorted-wave approximation, which include the effect of resonances.

  3. The CEMS IV OAP algorithm

    OpenAIRE

    Larson, Harold J.; Jayachandran, Toke.

    1983-01-01

    The Comprehensive Engine Management System (CEMS) Phase IV, will provide real time data analysis capability for all Air Force oil analysis laboratories. This paper describes the statistical algorithm used by this system to aid the oil analysis technician in making his recommendations. The algorithm incorporates usage and oil consumption variables, and employs least squares to minimize the effects of the random errors in the spectrometer readings. Prepared for: Directorate of M...

  4. Apoptosis neuronal: la diversidad de señales y de tipos celulares

    Directory of Open Access Journals (Sweden)

    Lina Vanessa Becerra

    2009-03-01

    Full Text Available La muerte celular programada es un evento fisiológico durante el desarrollo. En el encéfalo y la médula espinal, este proceso determina el número y la localización de los diferentes tipos celulares. En el sistema nervioso del adulto, la muerte celular programada o apoptosis está más restringida, pero puede jugar un papel determinante en enfermedades crónicas o agudas. Al contrario de otros tejidos en los cuales la apoptosis está documentada ampliamente desde el punto de vista morfológico, en el sistema nervioso central la evidencia en este sentido es escasa. A pesar de esto, existe consenso acerca de la activación de diferentes sistemas de señalización apoptótica. En el presente artículo se intenta resumir las principales vías de señalización apoptótica identificadas en el tejido nervioso. Considerando que las vías apoptóticas son múltiples, los tipos neuronales diversos y especializados y que la respuesta neuronal a la lesión y la supervivencia dependen del contexto de la célula en el tejido (preservación de la conectividad, integridad glial y matriz extracelular, flujo sanguíneo y disponibilidad de factores tróficos, lo que es relevante en el proceso apoptótico en un sector del cerebro puede no serlo en otro.

  5. Estudio del comportamiento de los puentes tipo pony colgantes

    OpenAIRE

    Takeuchi Tam, Caori Patricia; León, Beatriz Elena; González, Mario Alberto

    2010-01-01

    En el país se encuentran numerosos puentes de paso a través intermedio colgantes. En este artículo se presentan la metodología y las conclusiones obtenidas en un estudio sobre el comportamiento de este tipo de puentes para las cargas existentes durante su proceso de construcción y puesta en servicio, mediante la constrastación entre modelos físicos y matemáticos. Igualmente, se estudió para estos modelos la estabilidad lateral.

  6. Tipos de socialización y desesperanza aprendida

    OpenAIRE

    Sandro Macassi

    1988-01-01

    Las nociones de alienación, falta de poder y desesperanza aprendida son revisadas. Sesenta obreros de una empresa limeña fueron evaluados en términos del tipo de socialización dominante (SD) y desesperanza aprendida (DA) en sus tres áreas: falta de motivación, falta de control y expectativas de no-control en el futuro. Las escalas SD y DA resultaron consistentes. El análisis de regresión múltiple con las variables grado de división del trabajo, el grado de instrucción y –en migrantes- edad de...

  7. Tipo de bebidas consumidas por los estudiantes universitarios

    OpenAIRE

    Zaragoza Martí, Ana; Norte Navarro, Aurora; Fernández Sáez, José; Hurtado Sánchez, José Antonio; Ortiz Moncada, Rocío

    2013-01-01

    Fundamentos: Existe una gran diferencia entre el consumo de agua y las bebidas que contiene agua (bebidas carbonatadas, azucaradas, zumos o bebidas alcohólicas). El consumo de estas bebidas está relacionado con el desarrollo de enfermedades crónicas (obesidad, diabetes tipo 2, hipertensión arterial o dislipemias). El objetivo es determinar la frecuencia de consumo de bebidas de los estudiantes de la Universidad de Alicante. Métodos: Estudio transversal descriptivo. Población 26.273 estudiante...

  8. Estrategias de autocuidado en pacientes con diabetes mellitus tipo 2

    OpenAIRE

    Araceli Fernández Vázquez; Tania A Abdala Cervantes; Estela Patricia Alvara Solís; Gloria Leonor Tenorio Franco; Elizabeth López Valencia; Saúl Cruz Centeno; Rocío Dávila Mendoza; Alberto González Pedraza Avilés

    2012-01-01

    Antecedentes: las recomendaciones de la Asociación Americana de Diabetes resaltan la educación oportuna del enfermo y su familia. Al parecer, las estrategias educativas utilizadas en la mayor parte de los casos no han sido las idóneas. Objetivo: evaluar el efecto de la intervención educativa y participativa en el grado de conocimientos, la calidad de vida, el apoyo familiar y el control metabólico de los pacientes con diabetes tipo 2. Pacientes y métodos: se realizó un estudio cuasi experim...

  9. Sistemas de tipos en lenguajes lógico-funcionales

    OpenAIRE

    Martín Martín, Enrique

    2012-01-01

    La programación lógico-funcional es un paradigma de programación declarativa muy expresivo, fruto de la combinación de la programación funcional y la programación lógica. Entre sus principales características destacan la posibilidad de de1nir funciones indeterministas, los patrones de orden superior y el uso de variables libres que se ligan a valores adecuados durante el cómputo. Desde el punto de vista de tipos, los sistemas lógico-funcionales han adoptado demaneradirectaelsistemadetiposdeDa...

  10. Neurofibromatose do Tipo 1 - Proposta de Protocolo de Seguimento

    OpenAIRE

    Anselmo, M; Calado, E; Vieira, JP; Dias, AI; A. Moreira; Dias, K

    2005-01-01

    A Neurofibromatose tipo a (NF1) é uma doença multissistémica de carácter progressivo. Tem uma expressão fenotípica muito variada, sem factores preditivos de gravidade. Objectivos: caracterizar a população pediátrica com NF! seguida na consulta de Neurologia Pediátrica no Hospital de Dona Estefânia (HDE) e os principais motivos de referência; definir um protocolo de seguimento; definir critérios de referenciação para o neuropediatra. Material e Métodos: realizou-se um estudo retrospectivo e lo...

  11. Fundamentos del Tipo de Cambio Real en Chile

    OpenAIRE

    Rodrigo Cerda; Alvaro Donoso; Aldo Lema

    2003-01-01

    Un modelo basado en la relación gasto-producto (efecto Salter-Swan) y los términos de intercambio, habría predicho un incremento más pronunciado del tipo de cambio real (TCR) en Chile durante la segunda mitad de los '80, una caída menos acentuada entre 1990 y 1997, y un aumento más fuerte a partir de 1998 cuando irrumpió la crisis financiera internacional. Este trabajo incorpora en forma exhaustiva otros factores en la determinación de largo plazo del TCR, tanto de oferta como de demanda. Usa...

  12. Tipos de tiempo en la provincia de Alicante

    OpenAIRE

    Martínez Ibarra, Emilio

    2006-01-01

    Estudio de la diversidad espacial de los tipos de tiempo más comunes en la provincia de Alicante. Asociación de Geógrafos Españoles, Universidad de Alicante, Caja de Ahorros del Mediterráneo. La presente investigación se ha elaborado dentro del Proyecto I+D (REN2003-02059/GLO) cofinanciado por el Ministerio de Ciencia y Tecnología y fondos FEDER, adscrito al Dpto. de Análisis Geográfico Regional y Geografía Física de la Universidad de Alicante.

  13. Sarcopenia en pacientes con diabetes mellitus tipo 2.

    OpenAIRE

    Vergara Ruiz, José Carlos

    2015-01-01

    El riesgo de discapacidad es mayor en pacientes con diabetes mellitus tipo 2 (DM2). Buena parte del mismo se debe al envejecimiento del músculo esquelético o sarcopenia. El déficit de fuerza muscular asociado a la edad tiene mayor asociación con la pérdida de funcionalidad que el mismo proceso cuando afecta a la masa muscular esquelética, y no ocurren de forma paralela ni proporcional. Recientemente se ha propuesto el término dinapenia para referirse a ésta pérdida de fuerza muscular, con ind...

  14. Determination of U(IV) by spectrophotometry

    International Nuclear Information System (INIS)

    The determination of uranium (IV) concentration in acid solutions in the presence of U (IV), Fe (II) and Ti (IV) by spectrophotometry is studied, aiming at controlling the solutions in the ion exchange columns, used for uranium enrichment by isotope exchange. (E.G.)

  15. El cambio en la designación general de material [DGM] de las AACR a las RDA: definición de los atributos tipo de contenido, tipo de medio y tipo de soporte

    OpenAIRE

    Paola Andrea Picco Gómez

    2011-01-01

    Se aborda el estudio de los atributos tipo de contenido, tipo de medio y tipo de soporte definidos por el código de catalogación Resource Description and Access (RDA) para solucionar los problemas que presentaba la lista de términos utilizadas para registrar la designación general de material (DGM) en las Anglo American Cataloging Rules (AACR). Los términos eran ambiguos combinando aspectos referidos al contenido y clase de material del recurso. Se parte de una exhaustiva revisión bibliográfi...

  16. Report on the O IV and S IV lines observed by IRIS

    CERN Document Server

    Young, Peter R

    2015-01-01

    The O IV intercombination lines observed by the Interface Region Imaging Spectrograph (IRIS) between 1397 and 1407 A provide useful density diagnostics. This document presents data that address two issues related to these lines: (1) the contribution of S IV to the O IV 1404.8 line; and (2) the range of sensitivity of the O IV 1399.8/1401.2 ratio.

  17. Thailand; 2013 Article IV Consultation

    OpenAIRE

    International Monetary Fund

    2013-01-01

    This 2013 Article IV Consultation highlights that in 2012, Thailand’s economy rebounded strongly from the devastating floods, with real GDP growing by 6.5 percent. Private consumption rose 6.7 percent, reflecting pent-up demand and government measures, including the rice pledging scheme, where the government was committed to buying rice from farmers at a set price above the prevailing market price, and the first-car buyer scheme. On the back of reconstruction spending, private investment gr...

  18. Italy; 2013 Article IV Consultation

    OpenAIRE

    International Monetary Fund

    2013-01-01

    This 2013 Article IV Consultation highlights Italy’s assesses measures undertaken to revive economic growth. Italy is vulnerable to a renewal of euro area tension and risks from domestic policy slippages, stalling of structural reforms, and banking distress that could undermine confidence. The government has taken steps to liberalize services, open the energy sector, and improve the labor market, but more is needed to boost productivity and raise Italy’s low employment rate. The IMF repor...

  19. A ultra-sonografia do pâncreas é eficaz em diagnosticar o diabete melito tipo 1 e tipo 2?

    Directory of Open Access Journals (Sweden)

    Pimenta Walkyria de Paula

    2002-01-01

    Full Text Available Este trabalho foi realizado para verificar se a ultra-sonografia do pâncreas oferece dados auxiliares na classificação de diabéticos adultos dos tipos 1 e 2. O tamanho e a ecogenicidade do pâncreas foram determinados pela ultra-sonografia em 81 diabéticos, sendo 20 do tipo 1 e 61 do tipo 2 (53 obesos e oito não-obesos. Os pacientes tipo 2 obesos diferiram dos demais por apresentarem área total e diâmetro ântero-posterior do corpo do pâncreas significativamente maiores. Quanto à ecogenicidade pancreática, esta estava aumentada com maior freqüência nos diabéticos tipo 2 obesos que nos diabéticos tipo 1. Consideramos, assim, que a ultra-sonografia do pâncreas constitui metodologia auxiliar na classificação de diabéticos entre os tipo 1 e 2, sendo menos eficaz quando os últimos não são obesos.

  20. Notas sobre o tipo de Trigona limao Smith (Hymenoptera, Apidae, Lestrimelitta

    Directory of Open Access Journals (Sweden)

    Paola Marchi

    2004-01-01

    Full Text Available O nome limao tem sido usado para espécies distintas do gênero Lestrimelitta. O material-tipo de Smith depositado no The Natural History Museum (Londres foi examinado. A operária de L. limao é descrita e o lectótipo para Trigona limao Smith, 1863 é designado. Esta espécie encontra-se restrita aos cerrados da porção central do Brasil, de São Paulo ao Maranhão. Distingue-se de outras espécies pelos seguintes caracteres diagnósticos: vértice com pouquíssimas cerdas eretas, muito finas e curtas, restritas à região interocelar; bordo anterior do mesoscuto com cerdas eretas castanhas nas laterais; laterais do mesepisterno com cerdas eretas esparsas e restritas à porção ventral e curvatura entre porções lateral e ventral, tornando-se mais longas próximo à base da coxa média; contorno da abertura do espiráculo propodeal, aproximadamente 2,5 x mais longo do que largo; flancos do propódeo coberto por pilosidade decumbente esbranquiçada, fina e ramificada; esporão mesotibial muito reduzido; tergo metassomal 1 com cerdas enegrecidas nas porções laterais.Notes on the type specimen of Trigona limao Smith (Hymenoptera, Apidae, Lestrimelitta. The name limao has been loosely associated with a variety of forms within the bee genus Lestrimelitta. The identity of the type species was checked through comparisons of Smith's type material with the morphospecies recognized in an ongoing revision of the Brazilian species. Lestrimelitta limao is a species restricted to the cerrados of central Brazil, distributed from São Paulo to Maranhão. It can be distinguished from other species by the following features: vertex almost lacking erect setae; erect setae on anterior margin of mesoscutum restricted to its lateral portions and almost lacking from the middle; lateral portion of mesepisternum with only short, decumbent microsetae; opening of propodeal spiracle with an oval contour, about 2.5x longer than wide; lateral portion of propodeum

  1. Las copas tipo Cástulo en la Península Ibérica

    Directory of Open Access Journals (Sweden)

    Sánchez, Carmen

    1992-12-01

    Full Text Available The Castulo cup is one of the most common black glaze Attic forms in the Iberian Peninsula from the Atlantic coast to Ampurias. Their date in the Iberian Peninsula is some years later than that proposed for Athens. They did not appear till some years after the second half of the 5th c. B.C. Their production probably continued until the first quarter of the 4th century B.C. They are almost fixed in their form for about a century, but some differences in the outside decoration and the underside of the foot can be pointed out. Two main types are proposed for the second half of the 5th century and the first quarter of the 4th century B.C. The differences in date compared with those found at Athens can be explained as an adaptation of the workshops to the demands of Iberian customers. Athen's artisans continued making Castulo cups for export at a time when in Athens they did not use them any more, because the stemless cup had been replaced by the popular kantharoi and cup-kantharoi.

    La copa Cástulo es una de las formas áticas de barniz negro más abundante en los yacimientos peninsulares desde la costa atlántica hasta Ampurias. Su cronología es en la Península Ibérica algo posterior a la propuesta para Atenas. No aparecen hasta algo después de mediados del siglo V y probablemente se continúan fabricando hasta el primer cuarto del IV a. C. No experimentan durante casi un siglo de producción ninguna variación formal, sin embargo sí se pueden ver diferencias en el tratamiento de la decoración exterior y del fondo externo. Se proponen aquí fundamentalmente dos tipos de la segunda mitad del siglo V y primer cuarto del IV a. C. La diferencia cronológica con las halladas en Atenas se explica como una adaptación de los talleres áticos a la demanda de los clientes ibéricos. Los artesanos atenienses continúan fabricando copas Cástulo para la exportación cuando en Atenas se han dejado ya de utilizar las copas de pie bajo al ser

  2. Tipos de socialización y desesperanza aprendida

    Directory of Open Access Journals (Sweden)

    Sandro Macassi

    1988-12-01

    Full Text Available Las nociones de alienación, falta de poder y desesperanza aprendida son revisadas. Sesenta obreros de una empresa limeña fueron evaluados en términos del tipo de socialización dominante (SD y desesperanza aprendida (DA en sus tres áreas: falta de motivación, falta de control y expectativas de no-control en el futuro. Las escalas SD y DA resultaron consistentes. El análisis de regresión múltiple con las variables grado de división del trabajo, el grado de instrucción y –en migrantes- edad de arribo y permanencia en la capital, evidenció que el único predictor de DA es el grado de instrucción, correlacionándose negativamente. Los resultados se discuten a la luz de la realidad peruana.

  3. Tipo abstracto de datos "Biblioteca" Library Abstract data type

    Directory of Open Access Journals (Sweden)

    Silvana Temesio Vizoso

    2010-12-01

    Full Text Available Análisis de la descripción bibliográfica desde un punto de vista conceptual a partir de la especificación formal: tipo abstracto de datos "biblioteca". Se detallan otros abordajes usando el modelo entidad-relación y el lenguaje XML. Se concluye la relevancia del enfoque abstracto y su aplicabilidad genérica en un sujeto de cambio permanente.Analysis of bibliographic description from a conceptual point of view from the formal specification: "library" abstract data type. Other approaches are detailed using the entity-relationship model and XML language. We conclude the relevance of abstract approach and its general applicability in a subject of constant change.

  4. Tipos de especialização na agricultura brasileira

    Directory of Open Access Journals (Sweden)

    Garagorry Fernando Luís

    2003-01-01

    Full Text Available Este artigo introduz uma metodologia para definir tipos de especialização de estabelecimentos agropecuários, a partir da estrutura das receitas de origem agrícola. Com base nos dados de um levantamento realizado em colaboração entre a Fundação Getulio Vargas e a Embrapa, que abrangeu nove regiões do Brasil, foi possível alocar cada estabelecimento em um único tipo de especialização e estimar um índice de especialização para cada região, com o qual foi obtido um ordenamento de especialização entre as regiões. A seguir, são feitas algumas considerações sobre o número de atividades envolvidas e certos problemas que podem surgir quando se trabalha com valores médios regionais. Dentro de uma situação em que predominam níveis altos de especialização, são identificadas importantes diferenças inter-regionais nessa matéria, o que deve contribuir para a formulação de políticas agrícolas e o direcionamento de ações de pesquisa. Em termos mais amplos, entende-se que uma metodologia similar pode ser aplicada para estudar a especialização em outras situações (por exemplo, no nível de municípios.

  5. IVS contribution to ITRF2014

    Science.gov (United States)

    Bachmann, Sabine; Thaller, Daniela; Roggenbuck, Ole; Lösler, Michael; Messerschmitt, Linda

    2016-07-01

    Every few years the International Terrestrial Reference System (ITRS) Center of the International Earth Rotation and Reference Systems Service (IERS) decides to generate a new version of the International Terrestrial Reference Frame (ITRF). For the upcoming ITRF2014 the official contribution of the International VLBI Service for Geodesy and Astrometry (IVS) comprises 5796 combined sessions in SINEX file format from 1979.6 to 2015.0 containing 158 stations, overall. Nine AC contributions were included in the combination process, using five different software packages. Station coordinate time series of the combined solution show an overall repeatability of 3.3 mm for the north, 4.3 mm for the east and 7.5 mm for the height component over all stations. The minimum repeatabilities are 1.5 mm for north, 2.1 mm for east and 2.9 mm for height. One of the important differences between the IVS contribution to the ITRF2014 and the routine IVS combination is the omission of the correction for non-tidal atmospheric pressure loading (NTAL). Comparisons between the amplitudes of the annual signals derived by the VLBI observations and the annual signals from an NTAL model show that for some stations, NTAL has a high impact on station height variation. For other stations, the effect of NTAL is low. Occasionally other loading effects have a higher influence (e.g. continental water storage loading). External comparisons of the scale parameter between the VTRF2014 (a TRF based on combined VLBI solutions), DTRF2008 (DGFI-TUM realization of ITRS) and ITRF2008 revealed a significant difference in the scale. A scale difference of 0.11 ppb (i.e. 0.7 mm on the Earth's surface) has been detected between the VTRF2014 and the DTRF2008, and a scale difference of 0.44 ppb (i.e. 2.8 mm on the Earth's surface) between the VTRF2014 and ITRF2008. Internal comparisons between the EOP of the combined solution and the individual solutions from the AC contributions show a WRMS in X- and Y-Pole between

  6. IVS contribution to ITRF2014

    Science.gov (United States)

    Bachmann, Sabine; Thaller, Daniela; Roggenbuck, Ole; Lösler, Michael; Messerschmitt, Linda

    2016-04-01

    Every few years the International Terrestrial Reference System (ITRS) Center of the International Earth Rotation and Reference Systems Service (IERS) decides to generate a new version of the International Terrestrial Reference Frame (ITRF). For the upcoming ITRF2014 the official contribution of the International VLBI Service for Geodesy and Astrometry (IVS) comprises 5796 combined sessions in SINEX file format from 1979.6 to 2015.0 containing 158 stations, overall. Nine AC contributions were included in the combination process, using five different software packages. Station coordinate time series of the combined solution show an overall repeatability of 3.3 mm for the north, 4.3 mm for the east and 7.5 mm for the height component over all stations. The minimum repeatabilities are 1.5 mm for north, 2.1 mm for east and 2.9 mm for height. One of the important differences between the IVS contribution to the ITRF2014 and the routine IVS combination is the omission of the correction for non-tidal atmospheric pressure loading (NTAL). Comparisons between the amplitudes of the annual signals derived by the VLBI observations and the annual signals from an NTAL model show that for some stations, NTAL has a high impact on station height variation. For other stations, the effect of NTAL is low. Occasionally other loading effects have a higher influence (e.g. continental water storage loading). External comparisons of the scale parameter between the VTRF2014 (a TRF based on combined VLBI solutions), DTRF2008 (DGFI-TUM realization of ITRS) and ITRF2008 revealed a significant difference in the scale. A scale difference of 0.11 ppb (i.e. 0.7 mm on the Earth's surface) has been detected between the VTRF2014 and the DTRF2008, and a scale difference of 0.44 ppb (i.e. 2.8 mm on the Earth's surface) between the VTRF2014 and ITRF2008. Internal comparisons between the EOP of the combined solution and the individual solutions from the AC contributions show a WRMS in X- and Y-Pole between

  7. Aplicación de la técnica de iv gama para la elaboración de ensaladas.

    OpenAIRE

    García Méndez, Auris Damely

    2011-01-01

    El propósito de la aplicación de la técnica de IV Gama en la elaboración de ensaladas listas para el consumo fresco, está dirigido al control del deterioro en lechuga americana (Lactucasativa), zanahoria (Daucus carota L.), radicchio (Cichorium intybus L.) y escarola (Cichorium endivia L.), destinadas a preparar ensaladas tipo “Mediterránea y Cheff”. La metodología permitió seleccionar y evaluar la técnica de IV Gama, así como las buenas prácticas de manufactura para extender la vida comercia...

  8. Manifestações radiológicas da mucopolissacaridose tipo VI Radiological findings in patients with mucopolysaccharidosis type VI

    Directory of Open Access Journals (Sweden)

    Celso Montenegro Turtelli

    2002-10-01

    Full Text Available O autor relata as alterações radiológicas da mucopolissacaridose tipo VI (mucopolissacárides VI observadas em dois irmãos. Foram realizadas radiografias convencionais do esqueleto e estudo por ressonância magnética do sistema nervoso central. As alterações osteoarticulares são bem conhecidas e em geral semelhantes às das outras mucopolissacárides. O estudo por ressonância magnética do sistema nervoso central pode colaborar no diagnóstico diferencial dessas doenças, avaliar a extensão das lesões e ajudar no controle evolutivo.The author reports the radiological findings in two siblings with mucopolysaccharidosis type VI (mucopolysaccharide VI. Conventional radiographs of the skeleton and magnetic resonance imaging examination of the central nervous system were performed. Skeletal abnormalities in patients with mucopolysaccharidosis type VI have already been well described by other authors and are generally similar to other mucopolysaccharides. Magnetic resonance imaging of the central nervous system may be helpful in the differential diagnosis, assessment of extension, and follow-up of these diseases.

  9. EMISSÕES SOLARES TIPO-U E TIPO-J DECIMÉTRICAS REGISTRADAS PELO BRAZILIAN SOLAR SPECTROSCOPE (BSS

    Directory of Open Access Journals (Sweden)

    José Augusto S. S. Dutra

    2013-09-01

    Full Text Available Neste trabalho são apresentados os resultados da análise de cinco emissões solares tipo-U e tipo-J registradas pelo rádio espectrógrafo “Brazilian Solar Spectroscope” (BSS em frequências decimétricas (1,0 – 2,5 GHz, entre junho de 2000 e outubro de 2001. As características espectro-temporais das emissões foram medidas a partir dos espectros dinâmicos. Considerando a emissão de plasma no segundo harmônico, foram inferidos os seguintes parâmetros da fonte emissora: densidade de fluxo inferior a 20 – 80 u.f.s.; comprimento dos arcos magnéticos da ordem de (0,3 – 5,1 ´ 1010 cm; velocidade dos feixes de elétrons de (0,47 – 1,16 ´ 105 km/s; densidade máxima dos feixes de elétrons de (0,56 - 1,95 ´ 105 cm-3; máximo de (2,53 – 7,37 ´ 1031 elétrons no feixe; temperatura do topo dos arcos magnéticos de (2,5 – 15,5 ´ 106 K; e limite inferior para a intensidade do campo magnético na região do plasma confinado de 7 – 22 G. Os resultados são comparados com determinações publicadas na literatura.

  10. Vermonrinteen päiväkoti

    OpenAIRE

    Hulmi, J. (Joona)

    2015-01-01

    Suunnitelmapainotteinen diplomityöni Vermonrinteen päiväkoti koostuu rakennussuunnitelmasta ja selostuksesta. Selostus taustoittaa puurakenteisen päiväkodin suunnittelutyötä ja siihen kuuluu suunnitteluratkaisujen lisäksi kirjallista pohdintaa suunnittelutyön kannalta minua kiinnostaneista näkökulmista. Esittelen selostusosuudessa myös viime vuosina rakennettuja päiväkoteja, joihin olen tutustunut sekä nykyisen varhaiskasvatusmallin mukaisia toimintatapoja, jotka yhdessä antavat pohjaa päiväk...

  11. Toimintapäivä monikulttuuriperheille

    OpenAIRE

    Väkevä, Laura; Lummekari, Jenna

    2012-01-01

    Projektina toteutettavan opinnäytetyön tarkoituksena oli järjestää toimintapäivä monikulttuuriperheille. Tavoitteena oli tuoda perheet eri kulttuureista yhteen sekä tutustuttaa suomalaiseen kulttuuriin. Toimintapäivä toteutettiin suomen kielellä, jotta osallistujilla olisi mahdollisuus harjaannuttaa kielitaitoaan. Opinnäytetyön terveydellinen näkökulma oli liikunnallisuus, joka oli toimintapäivän teemana. Toimintapäivän ideana oli saada perheet liikkumaan ja harrastamaan enemmän yhdessä. ...

  12. ivähoidon merkitys vanhemmille

    OpenAIRE

    Järvelä, Tarja

    2015-01-01

    Tämän opinnäytetyön tarkoituksena on selvittää, miksi perheet käyttävät varhaiskasvatuksen palveluita. Varhaiskasvatuspalveluita ovat päivähoito, perhepäivähoito, avoin varhaiskasvatustoiminta sekä esiopetus. Varhaiskasvatuslakia ollaan uudistamassa ja perheiden subjektiivista päivähoito-oikeutta ollaan rajaamassa. Tämä tutkimus kohdistui varhaiskasvatuksen alueella päivähoidon merkitykseen vanhempien näkökulmasta. Tutkimus oli kvantitatiivinen. Tutkimusaineisto on hankittu lomakkeiden av...

  13. Efectos del tipo de diabetes, estrategias de afrontamiento, sexo y optimismo en el apoyo social

    OpenAIRE

    Rondón, José E.; Lugli, Zoraide

    2013-01-01

    Se desea conocer el efecto del tipo de diabetes, las estrategias de afrontamiento, el sexo, y el optimismo sobre las redes sociales y el apoyo social percibido por sujetos con diabetes. Participaron 103 hombres y 197 mujeres divididos en diabéticos tipo

  14. Nonpreference of whitefly for oviposition in tomato genotypes Não-preferência para oviposição de mosca-branca por genótipos de tomateiro

    Directory of Open Access Journals (Sweden)

    Luciana Cláudia Toscano

    2002-12-01

    Full Text Available The silverleaf whitefly is one of most important pests of tomato (Lycopersicon spp.. The use of host plant resistance to control this insect is an interesting, potentially useful technique, but in demand of more research. The objectives of this work were to evaluate the oviposition non-preference of Bemisia tabaci (Gennadius, 1889 biotype B for different tomato plant genotypes, evaluating the correlation between oviposition preference and pubescence in the genotypes, and analyzing the abaxial and adaxial surfaces of Lycopersicon pennellii leaflets under the scanning electron microscope. Four wild tomato genotypes, LA 716 (L. pennellii; PI 127826 and PI 127827 (L. hirsutum; PI 134417 (L. hirsutum f. glabratum, and two commercial genotypes, Santa Clara and Bruna VFN hybrid (L. esculentum were evaluated for number of eggs cm-2 in free and no-choice oviposition tests, using randomized block design and completely randomized design, respectively. The number of trichome was measured in 4 mm² and coefficients of correlation between number of trichomes and number of eggs were calculated. The wild genotypes LA 716 and PI 134417 were less preferred showing oviposition nonpreference resistance type in both tests. The Bruna VFN and Santa Clara were more preferred in free-choice test, while wild genotypes PI 127826 and PI 127827 were more preferred in no-choice test. L. pennellii leaflets presented glandular trichomes type IV in both surfaces. Santa Clara genotype presented higher density of trichomes, and B. tabaci biotype B presented higher preference to oviposition.A mosca-branca Bemisia tabaci (Gennadius, 1889 biótipo B é atualmente uma das principais pragas do tomateiro (Lycopersicon spp.. O uso de plantas resistentes para o controle deste inseto apresenta-se interessante, com grande potencial para Manejo Integrado de Pragas. Este trabalho teve por objetivos verificar a não-preferência para oviposição de B. tabaci biótipo B em genótipos de

  15. ACME-III and ACME-IV Final Campaign Reports

    Energy Technology Data Exchange (ETDEWEB)

    Biraud, S. C. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2016-01-01

    The goals of the Atmospheric Radiation Measurement (ARM) Climate Research Facility’s third and fourth Airborne Carbon Measurements (ACME) field campaigns, ACME-III and ACME-IV, are: 1) to measure and model the exchange of CO2, water vapor, and other greenhouse gases by the natural, agricultural, and industrial ecosystems of the Southern Great Plains (SGP) region; 2) to develop quantitative approaches to relate these local fluxes to the concentration of greenhouse gases measured at the Central Facility tower and in the atmospheric column above the ARM SGP Central Facility, 3) to develop and test bottom-up measurement and modeling approaches to estimate regional scale carbon balances, and 4) to develop and test inverse modeling approaches to estimate regional scale carbon balance and anthropogenic sources over continental regions. Regular soundings of the atmosphere from near the surface into the mid-troposphere are essential for this research.

  16. Metsahovi Radio Observatory - IVS Network Station

    Science.gov (United States)

    Uunila, Minttu; Zubko, Nataliya; Poutanen, Markku; Kallunki, Juha; Kallio, Ulla

    2013-01-01

    In 2012, Metsahovi Radio Observatory together with Finnish Geodetic Institute officially became an IVS Network Station. Eight IVS sessions were observed during the year. Two spacecraft tracking and one EVN X-band experiment were also performed. In 2012, the Metsahovi VLBI equipment was upgraded with a Digital Base Band Converter, a Mark 5B+, a FILA10G, and a FlexBuff.

  17. IVS Working Group 4: VLBI Data Structures

    Science.gov (United States)

    Gipson, John

    2010-01-01

    In 2007 the IVS Directing Board established IVS Working Group 4 on VLBI Data Structures. This note discusses the current VLBI data format, goals for a new format, the history and formation of the Working Group, and a timeline for the development of a new VLBI data format.

  18. Stark broadening of B IV spectral lines

    Science.gov (United States)

    Dimitrijević, Milan S.; Christova, Magdalena; Simić, Zoran; Kovačević, Andjelka; Sahal-Bréchot, Sylvie

    2016-08-01

    Stark broadening parameters for 157 multiplets of helium-like boron (B IV) have been calculated using the impact semiclassical perturbation formalism. Obtained results have been used to investigate the regularities within spectral series. An example of the influence of Stark broadening on B IV lines in DO white dwarfs is given.

  19. Stark broadening of B IV spectral lines

    CERN Document Server

    Dimitrijevic, Milan S; Simic, Zoran; Kovacevic, Andjelka; Sahal-Brechot, Sylvie

    2016-01-01

    Stark broadening parameters for 157 multiplets of helium like boron (B IV) have been calculated using the impact semiclassical perturbation formalism. Obtained results have been used to investigate the regularities within spectral series. An example of the influence of Stark broadening on B IV lines in DO white dwarfs is given.

  20. Linfoma Extranodal de Células NK/T tipo Nasal Extranodal Nasal type NK/T-Cell Lymphoma

    OpenAIRE

    Carlos S. Chiattone

    2009-01-01

    O Linfoma Extranodal de Células NK/T tipo Nasal tem uma distribuição geográfica peculiar, ocorrendo mais frequentemente em países orientais e na população nativa de alguns países da América Central e da América do Sul. Sua localização preferencial é na cavidade nasal e nos seios paranasais, mas pode acometer outras estruturas da chamada região médio-facial. Tem um padrão de disseminação com "homing" característico, incluindo pele, testículo, SNC e trato digestivo. Este linfoma, menos frequent...

  1. Moldes protótipos para a produção de peças em RIM

    OpenAIRE

    Silva, Marta Flora Araújo

    2008-01-01

    Dissertação de mestrado em Projecto e Fabrico de Moldes O presente relatório reporta a tese de mestrado, desenvolvida no âmbito do mestrado em Projecto e Fabrico de Moldes do Departamento de Engenharia de Polímeros da Universidade do Minho e tem como estudo central o desenvolvimento de moldes protótipos para a produção de peças em RIM. O tema da referida tese está não só relacionado com o mestrado em questão mas também surge no âmbito do desenvolvimento do projecto PerRIM. O...

  2. Studies of binary cerium(IV)-praseodymium(IV) and cerium(IV)-terbium(IV) oxides as pigments for ceramic applications

    International Nuclear Information System (INIS)

    It was investigated a series of pigments of general composition Ce1-x Prx O2, and Cex Tby O2, exhibiting radish and brown colors, respectively, and high temperature stability. The pigments were obtained by dissolving appropriate amounts of the pure lanthanide oxides in acids and precipitating the rare earths as mixed oxalates, which were isolated and calcined under air, at 10000 C. X-Ray powder diffractograms were consistent with a cubic structure for the pigments. Magnetic susceptibility measurements, using Gouy method, indicated the presence of Pr(IV) ions in the Ce1-x Prx O2 pigments and of Terbium predominantly as Tb(III) ions in the Ce-tb mixed oxides. A new method, based on suspension of solid samples in PVA-STB gels (STB = sodium tetradecaborate), was employed for the measurements of the electronic spectra of the pigments. The thermal behaviour the pigments was investigated by the calcination of the oxalates in the temperature range of 500 to 1200O C, from 10 to 60 minutes. (author)

  3. Materials for generation-IV nuclear reactors

    International Nuclear Information System (INIS)

    Materials science and materials development are key issues for the implementation of innovative reactor systems such as those defined in the framework of the Generation IV. Six systems have been selected for Generation IV consideration: gas-cooled fast reactor, lead-cooled fast reactor, molten salt-cooled reactor, sodium-cooled fast reactor, supercritical water-cooled reactor, and very high temperature reactor. The structural materials need to resist much higher temperatures, higher neutron doses and extremely corrosive environment, which are beyond the experience of the current nuclear power plants. For this reason, the first consideration in the development of Generation-IV concepts is selection and deployment of materials that operate successfully in the aggressive operating environments expected in the Gen-IV concepts. This paper summarizes the Gen-IV operating environments and describes the various candidate materials under consideration for use in different structural applications. (author)

  4. Thermodynamic data for predicting concentrations of Th(IV), U(IV), Np(IV), and Pu(IV) in geologic environments

    International Nuclear Information System (INIS)

    This report provides thermodynamic data for predicting concentrations of Th(IV), U(IV), Np(IV), and Pu(IV) in geologic environments, and contributes to an integration of the JNC chemical thermodynamic database, JNC-TDB (previously PNC-TDB), for the performance analysis of geological isolation system for high-level radioactive wastes. Thermodynamic data for the formation of complexes or compounds with hydroxide, chloride, fluoride, carbonate, nitrate, sulfate and phosphate are discussed in this report. Where data for specific actinide(IV) species was lacking, the data were selected based on chemical analogy to other tetravalent actinides. In this study, the Pitzer ion-interaction model is used to extrapolate thermodynamic constants to zero ionic strength at 25degC. (author)

  5. Thermodynamic data for predicting concentrations of Th(IV), U(IV), Np(IV), and Pu(IV) in geologic environments

    Energy Technology Data Exchange (ETDEWEB)

    Rai, Dhanpat; Roa, Linfeng; Weger, H.T.; Felmy, A.R. [Battelle, Pacific Northwest National Laboratory (PNNL) (United States); Choppin, G.R. [Florida State University (United States); Yui, Mikazu [Waste Isolation Research Division, Tokai Works, Japan Nuclear Cycle Development Inst., Tokai, Ibaraki (Japan)

    1999-01-01

    This report provides thermodynamic data for predicting concentrations of Th(IV), U(IV), Np(IV), and Pu(IV) in geologic environments, and contributes to an integration of the JNC chemical thermodynamic database, JNC-TDB (previously PNC-TDB), for the performance analysis of geological isolation system for high-level radioactive wastes. Thermodynamic data for the formation of complexes or compounds with hydroxide, chloride, fluoride, carbonate, nitrate, sulfate and phosphate are discussed in this report. Where data for specific actinide(IV) species was lacking, the data were selected based on chemical analogy to other tetravalent actinides. In this study, the Pitzer ion-interaction model is used to extrapolate thermodynamic constants to zero ionic strength at 25degC. (author)

  6. La naturaleza artificial de Central Park

    OpenAIRE

    Martínez García-Posada, Ángel

    2009-01-01

    Central Park fue el primer gran parque público norteamericano, pionero en la adaptación de un modelo europeo según un lenguaje heredado del pintoresquismo y la jardinería inglesa, el resultado de una serie de transformaciones que intensificaban los efectos paisajistas: sobre la tierra había un paisaje diseñado y dibujado que copiaba a la naturaleza y bajo la tierra se disponía un eficiente sistema tecnológico. El parque reúne las cualidades de dos tipos de espacios libres en la ciudad: la ima...

  7. IV. International Slovak Biomass Forum

    International Nuclear Information System (INIS)

    The publication has been set up as proceedings of the conference dealing with use of biomass for energy production. The main conference topics are focused on the following scopes: Session 1: Strategies, politics, legislation tools, implementation issues; Session 2: Bioenergy market and business; Session 3: Biomass resources and fuel production; Session 4: Combustion and boiler system, technology; Session 5: Utilisation of biomass, practical examples (CHP, WWTP, DH, Central heating, Stakeholders); Session 6: Application of R + D in praxis in the short term horizont. In these proceedings 44 contributions are included

  8. Europa central

    Directory of Open Access Journals (Sweden)

    Karel BARTOSEK

    2010-02-01

    Full Text Available La investigación francesa continúa interesándose por Europa Central. Desde luego, hay límites a este interés en el ambiente general de mi nueva patria: en la ignorancia, producto del largo desinterés de Francia por este espacio después de la Segunda Guerra Mundial, y en el comportamiento y la reflexión de la clase política y de los medios de comunicación (una anécdota para ilustrar este ambiente: durante la preparación de nuestro coloquio «Refugiados e inmigrantes de Europa Central en el movimiento antifascista y la Resistencia en Francia, 1933-1945», celebrado en París en octubre de 1986, el problema de la definición fue planteado concreta y «prácticamente». ¡Y hubo entonces un historiador eminente, para quién Alemania no formaría parte de Europa Central!.

  9. Surprising Coordination Geometry Differences in Ce(IV)- and Pu(IV)-Maltol Complexes

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence Berkeley National Laboratory; Raymond, Kenneth; Szigethy, Geza; Xu, Jide; Gorden, Anne E.V.; Teat, Simon J.; Shuh, David K.; Raymond, Kenneth N.

    2008-02-12

    As part of a study to characterize the detailed coordination behavior of Pu(IV), single crystal X-ray diffraction structures have been determined for Pu(IV) and Ce(IV) complexes with the naturally-occurring ligand maltol (3-hydroxy-2-methyl-pyran-4-one) and its derivative bromomaltol (5-bromo-3-hydroxy-2-methyl-pyran-4-one). Although Ce(IV) is generally accepted as a structural analog for Pu(IV), and the maltol complexes of these two metals are isostructural, the corresponding bromomaltol complexes are strikingly different with respect to ligand orientation about the metal ion: All complexes exhibit trigonal dodecahedral coordination geometry but the Ce(IV)-bromomaltol complex displays an uncommon ligand arrangement not mirrored in the Pu(IV) complex, although the two metal species are generally accepted to be structural analogs.

  10. COMPOSTOS FENÓLICOS E ATIVIDADE ANTIOXIDANTE DE GENÓTIPOS DE CIRIGUELAS (SPONDIA PURPUREA L.

    Directory of Open Access Journals (Sweden)

    Quésia Jemima da SILVA

    2012-01-01

    Full Text Available Com o objetivo de determinar em frutos de 11 genótipos de cirigueleiras o teor de fenólicos totais e o potencial antioxidante foram preparados extratos hidrometanólicos e hidroacetônicos por extração sequencial. A ação antioxidante foi analisada utilizando dois ensaios: sequestro do radical DPPH● (1,1-difenil-2-picrilhidrazil e do radical ABTS+• (2,2’-azino-bis-(3-etilbenzotiazolina-6- acido sulfônico. O extrato obtido do genótipo IPA-10 apresentou maior teor de fenólicos totais (862,31mg EAG.g-1 de polpa, superando, estatisticamente, os extratos dos demais genótipos. Em relação ao percentual de sequestro do radical DPPH●, os extratos dos frutos de todos os genótipos apresentaram forte capacidade antioxidante, tendo em vista que os valores determinados foram superiores a 70%. O comportamento cinético dos extratos dos frutos dos genótipos IPA-2, IPA-3, IPA-4, IPA-5, IPA-6, IPA-7, IPA-8, IPA- 10 e IPA-11 foram classificados como rápidos (TEC50<5 minutos, no entanto, apenas o genótipo IPA-7 apresentou eficiência antirradical super alta. Com relação ao radical ABTS+• todos os genótipos apresentaram apreciável ação antioxidante com destaque para o extrato do genótipo IPA- 10 que demonstrou uma ação superior aos demais genótipos(6.633,87μM TEAC.g-1.

  11. Rhabdoid choroid plexus carcinoma: a rare histological type Carcinoma de plexus coroides de tipo rabdoide: un tipo histológico raro

    Directory of Open Access Journals (Sweden)

    Martha Lilia Tena-Suck

    2007-09-01

    Full Text Available Primary central nervous system atypical teratoid/rhabdoid tumors mostly occur during early childhood and are almost invariably fatal. These tumors show similar histological and radiological features to primitive neuroectodermal tumor, meduloblastoma and choroid plexus carcinoma, but present different biological behaviors. We present the case of an 18 year-old man who presented headache, vomiting and ataxia. CT-scan and MRI revealed a posterior fossa tumor. A gross total resection was performed. An intraoperative study showed papillary-like tumors with large cells and mitotic features. Histological examination showed two different main growth patterns: solid sheets of undifferentiated polygonal cells with papillary features and rhabdoid cells. Immunohistochemically, these rhabdoid cells were positive for vimentin, epithelial membrane antigen, smooth-muscle actin, cytokeratin, S-100 protein, and glial fibrillary acidic protein. Electro-microscopically, the typical rhabdoid cells contained whorled bundles of intermediate filaments in their cytoplasm. A rhabdoid tumor is a clinicalpathological entity and emphasizes the necessity to distinguish this unique tumor from other pediatric central nervous system neoplasms. Cytopathological features, immunohistochemistry and electro-microscopy differential diagnoses are discussed.Los tumores de tipo rabdoide primarios en cualquier sitio son raros y en el sistema nervioso central son extremadamente raros y ocurren principalmente en niños, el tumor teratoide/rabdoide es el tumor más frecuente dentro de este grupo y de evolución clínica fatal. El tumor neuroectodermico primitivo, medulobalstoma y al carcinoma de plexos coroides son tumores generalmente muestran aspectos clínicos radiológicos e histológicos similares, con evolución diferente. Presentamos el caso de un hombre joven de 18 años que inició con cefalea vómitos y ataxia. La imagen de TC muestra tumor en fosa posterior. Se realizó resecci

  12. O uso de politetrafluoroetileno expandido em tireoplastia tipo I

    Directory of Open Access Journals (Sweden)

    Mello-Filho Francisco Veríssimo de

    2003-01-01

    Full Text Available A paralisia unilateral de prega vocal (PUPV em abdução é uma alteração que produz grande desconforto ao paciente, principalmente pelos distúrbios fonatórios causados. Atualmente dispomos de uma variedade de métodos para seu tratamento. OBJETIVO: Verificar a eficiência, vantagens e desvantagens do uso da fita de politetrafluoretileno expandido (PTFE-e, na medialização de prega vocal (PV paralisada, em abdução. FORMA DE ESTUDO: Coorte Longitudinal. MATERIAL E MÉTODOS: Foram estudados quatro pacientes com diagnóstico clínico-laringoscópico de disfonia por PPVU, em abdução há pelo menos um ano. Os pacientes foram submetidos a avaliação fonoaudiológica e a tireoplastia tipo I para medialização da PV com fita de PTFE-e. Durante o seguimento pós-operatório procedeu-se videolaringoscopia, tomografia computadorizada e fonoterapia. RESULTADOS: Todos os pacientes estão satisfeitos com a qualidade vocal, apresentam medialização estável da PV com a fonocirurgia e bons resultados à avaliação fonoaudiológica. Um paciente apresentou extrusão intra-operatória da fita de PTFE-e, sendo feito um segundo procedimento, sem complicações, seis meses depois. CONCLUSÃO: Na opinião dos autores a fita de PTFE-e se presta com eficiência ao tratamento da PUPV, sem apresentar riscos importantes.

  13. Estrategias de autocuidado en pacientes con diabetes mellitus tipo 2

    Directory of Open Access Journals (Sweden)

    Araceli Fernández Vázquez

    2012-01-01

    Full Text Available Antecedentes: las recomendaciones de la Asociación Americana de Diabetes resaltan la educación oportuna del enfermo y su familia. Al parecer, las estrategias educativas utilizadas en la mayor parte de los casos no han sido las idóneas. Objetivo: evaluar el efecto de la intervención educativa y participativa en el grado de conocimientos, la calidad de vida, el apoyo familiar y el control metabólico de los pacientes con diabetes tipo 2. Pacientes y métodos: se realizó un estudio cuasi experimental de investigación educativa con 76 pacientes de la Clínica de Medicina Familiar Narvarte. Se diseñó una estrategia educativa y se aplicaron antes y después de la misma: ficha de identificación personal y los cuestionarios BERBÉS, de nivel de conocimientos; IMEVID, de calidad de vida; y MOS, de apoyo social. Se midió la antropometría, y se hicieron pruebas bioquímicas. Resultados: en el grado de conocimientos se tuvo un incremento en las puntuaciones de 15.4 a 20.2, al igual que en la calidad de vida y el apoyo social; todas con significado estadístico. Al inicio había 16 pacientes controlados con hemoglobina glucosilada (21%; al terminar la intervención, el total de pacientes controlados aumentó a 40 (52.6%. Conclusiones: la educación participativa involucra al paciente como generador de su propio aprendizaje al establecer un vínculo entre la teoría y la práctica, con lo que logra un efecto en la toma de decisiones sobre sus hábitos y estilos de vida saludable y, como consecuencia, en el control de la enfermedad, como quedó de manifiesto en este trabajo.

  14. Influencia del contacto precoz, nacionalidad, tipo de parto y prematuridad en la lactancia materna

    OpenAIRE

    Ana Belén Laviña Castan

    2015-01-01

    Conocer si en el HUMS existe asociación entre lactancia materna y nacionalidad, prematuridad, tipo de parto, contacto precoz piel con piel. Estudio de cohortes, en una muestra de 541 puérperas del HUMS en octubre-noviembre 2011. Las variables: nacionalidad, tipo de parto, contacto precoz, parto prematuro e inicio lactancia materna se recogieron antes del alta hospitalaria mediante cuestionario. A los dos meses postparto se contactó telefónicamente con las madres para conocer el tipo de lactan...

  15. Characterization of a synthetic peptide from type IV collagen that promotes melanoma cell adhesion, spreading, and motility

    OpenAIRE

    1990-01-01

    The adhesion and motility of tumor cells on basement membranes is a central consideration in tumor cell invasion and metastasis. Basement membrane type IV collagen directly promotes the adhesion and migration of various tumor cell types in vitro. Our previous studies demonstrated that tumor cells adhered and spread on surfaces coated with intact type IV collagen or either of the two major enzymatically purified domains of this protein. Only one of these major domains, the pepsin-generated maj...

  16. Phospholipids accumulation in mucolipidosis IV cultured fibroblasts.

    Science.gov (United States)

    Bargal, R; Bach, G

    1988-01-01

    Cultured fibroblasts from mucolipidosis IV patients accumulated phospholipids when compared to normal controls or cells from other genotypes. The major stored compounds were identified as phosphatidylcholine, phosphatidylethanolamine and to a larger extent lysophosphatidylcholine and lysobisphosphatidic acid. Pulse chase experiments of 32P-labelled phospholipids showed increased retention of these compounds in the mucolipidosis IV lines throughout the pulse and chase periods. Phospholipase A1, A2, C, D and lysophospholipase showed normal activity in the mucolipidosis IV lines and thus the metabolic cause for this storage remains to be identified. PMID:3139925

  17. Taxonomía de Pacientes con Diabetes Tipo 2 Basada en sus Representaciones de Enfermedad Taxonomy of Patients With Type 2 Diabetes Based on Their Illness Representations

    OpenAIRE

    Constanza J Letelier; Daniel E Núñez; Ricardo J Rey

    2011-01-01

    Se estableció una taxonomía de personas con diabetes tipo 2 basada en sus representaciones de enfermedad. Para ello se realizó un análisis de conglomerados con las respuestas de una muestra de conveniencia de 103 adultos de atención primaria de salud de la zona central de Chile, los que completaron la escala IPQ-R. Este análisis arrojó 3 grupos de pacientes, denominados Preocupado, Desesperanzado y Negador. El primero confía en los procedimientos para atenuar los efectos de la enfermedad. El ...

  18. Salga de queijo tipo Minas por impregnação a vácuo Salting of Minas cheese by vacuum impregnation

    OpenAIRE

    Luciana C. Hofmeister; José Antônio R. Souza; José Carlos C. Petrus; João Borges Laurindo

    2005-01-01

    Estudou-se o uso da impregnação a vácuo (IV) para a salga de queijo tipo Minas, utilizando-se uma câmara hermética, na qual amostras de queijos (cilíndricos, com massa de 500g e dimensões de 120mm de raio por 60mm de altura) foram imersas em solução de salmoura com 22% em massa de NaCl. Os ensaios foram realizados após a etapa de enformagem e prensagem, para facilitar a reprodutibilidade estrutural dos queijos. Utilizou-se vácuo de 85,3kPa (Pabsoluta =16kPa), aplicado intermitentemente, inter...

  19. Interação genótipo x ambiente em genótipos de feijão-caupi semiprostrado via modelos mistos

    Directory of Open Access Journals (Sweden)

    Francisco Eduardo Torres

    2015-01-01

    Full Text Available A metodologia de modelos mistos (REML/BLUP tem sido empregada para estudar os efeitos da interação genótipo x ambiente (G x E em várias culturas, como: arroz, feijão, cana-de-açúcar, cajueiro e eucalipto, porém ainda não foi aplicada em feijão-caupi. Assim, o objetivo deste trabalho foi selecionar simultaneamente genótipos de feijão-caupi semiprostrado cultivados no Estado do Mato Grosso do Sul, via modelos mistos, que reúnam alta adaptabilidade, estabilidade e produtividade de grãos. Foram conduzidos quatro ensaios de valor de cultivo e uso com genótipos de genótipos de feijão-caupi nos anos de 2005 e 2006 em Aquidauana, Chapadão do Sul e Dourados. O delineamento experimental utilizado foi o de blocos completos casualizados, com 20 genótipos e 4 repetições. Os parâmetros genéticos foram estimados pela metodologia REML/BLUP, e a seleção baseou-se no método da média harmônica do desempenho relativo dos valores genéticos (MHPRVG, em três estratégias: seleção com base no valor genético predito, tendo-se considerado o desempenho médio dos genótipos em todos os ambientes (sem efeito de interação ou o desempenho em cada ambiente (com efeito da interação; e seleção simultânea quanto à produtividade de grãos, estabilidade e adaptabilidade. Os genótipos BRS Paraguaçu, MNC99-542F-5 e MNC99-508G-1 podem ser cultivados em vários ambientes, pois reúnem alta produtividade de grãos, adaptabilidade e estabilidade. A herdabilidade da média dos genótipos apresentou magnitude variando de moderada a alta, fato que indica excelentes possibilidades para a seleção, permitindo acurácia seletiva de 82%.

  20. Efecto de dos tipos de raciones y cuatro alojamientos sobre el comportamiento productivo de cerdas gestantes

    Directory of Open Access Journals (Sweden)

    H. Araque

    2012-01-01

    Full Text Available El experimento se realizó en la Facultad de Agronomía, Universidad Central de Venezuela, con el objeto de evaluar el comportamiento productivo de cerdas que recibieron dos tipos de dietas y se alojaron durante la fase de gestación en cuatro sistemas diferentes de alojamiento. Las dietas fueron: con base de recursos tradicionales (dt y formulada con recursos alternativos (ra: raíz de yuca, follaje de yuca y morera, y aceite de palma. Los sistemas de alojamiento fueron: cama profunda (cp, campo (cm corrales (co y jaulas (ja, bajo un diseño de experimento totalmente aleatorizado con arreglo de tratamiento factorial (2x4, con nueve repeticiones, utilizando la cerda como unidad experimental. Se usaron 72 cerdas de la línea genética Camborough 22 (18 por alojamiento y nueve por dieta. Los servicios de las cerdas se hicieron por inseminación artificial. Las variables medidas fueron: días de gestación, ganancia de espesor de grasa dorsal, ganancia total de peso, ganancia diaria de peso, consumo de alimento, conversión de alimento, lechones nacidos vivos y peso de la camada al nacer. No se encontraron diferencias (P>0,05 para la interacción de ambos factores, entre dietas y sistemas de alojamiento. Cerdas de alto potencial genético que realizaron el periodo de gestación en alojamientos alternativos (cm o cp, alimentadas con arreglos alimenticios elaborados con base de recursos autóctonos alternativos mostraron un comportamiento productivo satisfactorio, comparable con los sistemas convencionales de producción de cerdos, con la consecuente mejora del bienestar animal, siendo una alternativa factible para pequeños y medianos productores de cerdos.

  1. Periodontal Disease Part IV: Periodontal Infections

    OpenAIRE

    Turnbull, Robert S.

    1988-01-01

    In Part IV of this article, the author describes two periodontal infections, acute necrotizing ulcerative gingivitis (trench mouth) and periodontal abscess, both acute painful conditions for which patients may seek advice from their family physician rather than their dentist.

  2. IV&V Project Assessment Process Validation

    Science.gov (United States)

    Driskell, Stephen

    2012-01-01

    The Space Launch System (SLS) will launch NASA's Multi-Purpose Crew Vehicle (MPCV). This launch vehicle will provide American launch capability for human exploration and travelling beyond Earth orbit. SLS is designed to be flexible for crew or cargo missions. The first test flight is scheduled for December 2017. The SLS SRR/SDR provided insight into the project development life cycle. NASA IV&V ran the standard Risk Based Assessment and Portfolio Based Risk Assessment to identify analysis tasking for the SLS program. This presentation examines the SLS System Requirements Review/System Definition Review (SRR/SDR), IV&V findings for IV&V process validation correlation to/from the selected IV&V tasking and capabilities. It also provides a reusable IEEE 1012 scorecard for programmatic completeness across the software development life cycle.

  3. Dipeptidyl Peptidase IV: A Brief Review

    Directory of Open Access Journals (Sweden)

    Bhavya K

    2013-06-01

    Full Text Available Diabetes mellitus-2 [NIDDM/T2D] is a metabolic disorder that is characterized by Insulin resistance and hyperglycemia. DPP IV inhibitors have been investigated as new target for T2D treatment. DPP IV inhibition improves the impaired insulin secretion and decrease postprandial concentrations of glucagon by enhancing the incretin hormone levels of Glucagon like peptide-1(GLP-1 and Glucose dependent insulinotropic polypeptide (GIP. Many research activities in this area resulted in the introduction of Sitagliptin and Vildagliptin (Only in Europe and few active molecules entered into clinical trials, for example Alogliptin. Treatment of this metabolic disorder especially in the early stages of the disease by DPP IV inhibition has been recognized as a validated and large numbers of inhibitors are currently in various stages of preclinical or clinical development. This review summarizes the development of DPP IV inhibitors, molecular mechanism, and etc.

  4. Maqarin natural analogue project: Phase IV. Reconnaissance mission report (April 28 to May 7, 1999)

    International Nuclear Information System (INIS)

    Final planning of the Technical Proposal for Phase IV of the Maqarin Natural Analogue Project was preceded by a ten day Reconnaissance Mission to the Jordan sites. The main objective of this mission was to: i) allow new organisations within the project to become familiar with the geological context of the Maqarin and Central Jordan sites and also to appreciate the prevailing technical and logistical limitations, ii) carry out limited field investigations, and iii) based on the experience from these two points, provide the opportunity to finalise the Maqarin Phase IV Technical Proposal. This report details the results of the mission

  5. Maqarin natural analogue project: Phase IV. Reconnaissance mission report (April 28 to May 7, 1999)

    Energy Technology Data Exchange (ETDEWEB)

    Smellie, J.A.T. [ed.] [Conterra AB, Uppsala (Sweden)

    2000-08-01

    Final planning of the Technical Proposal for Phase IV of the Maqarin Natural Analogue Project was preceded by a ten day Reconnaissance Mission to the Jordan sites. The main objective of this mission was to: i) allow new organisations within the project to become familiar with the geological context of the Maqarin and Central Jordan sites and also to appreciate the prevailing technical and logistical limitations, ii) carry out limited field investigations, and iii) based on the experience from these two points, provide the opportunity to finalise the Maqarin Phase IV Technical Proposal. This report details the results of the mission.

  6. Didymozoid Monilicaecum type trematodes in chaetognaths from the Mexican Caribbean Sea Tremátodos didimozoides tipo Monilicaecum en quetognatos del mar caribe mexicano

    Directory of Open Access Journals (Sweden)

    María del Carmen Gómez del Prado-Rosas

    2007-12-01

    Full Text Available Analyses of 22,508 holoplanktonic chaetognaths collected at 21 stations were made from four oceanographic campaigns along the coasts of Quintana Roo, Mexico, in 1991 (Caribe I = February; Caribe II = March; Caribe III = May; Caribe IV= August. Unencysted larval didymozoid parasites were identified as belonging to the Monilicaecum type because of the arrangement of the chambers of the heavily twisted intestinal caeca, which occupy nearly the entire body. These larvae were found in the coelom of seven individuals of the chaetognath Flaccisagitta enflata (prevalence = 0.03, mean intensity = 1 and in two of Serratosagitta serratodentata (prevalence = 0.009, mean intensity = 1. The Mexican Caribbean Sea is reported as a new locality for this type of helminth larvae.Se analizan 22,508 quetognatos holoplánticos capturados en 21 estaciones a lo largo de las costas del estado de Quintana Roo, México durante 1991 (Caribe I= febrero; Caribe II= marzo; Caribe III mayo; Caribe IV= agosto. Las formas no enquistadas de los parásitos didimozoides fueron identificadas como tipo Monilicaecum debido al arreglo de las cámaras de los ciegos intestinales fuertemente sinuosas que ocupan casi la totalidad de la cavidad corporal. Las larvas tipo Monilicaecum fueron encontradas en el celoma de siete quetognatos de la especie Flaccisagitta enflata (prevalencia= 0.03; intensidad promedio de parasitismo = 1 y en dos ejemplares de Serratosagitta serratodentata (prevalencia = 0.009, intensidad promedio = 1. El mar caribe mexicano es registrado como una nueva localidad para esta larva de helminto.

  7. Stage IV lung cancer: Is cure possible?

    OpenAIRE

    Ravi Thippeswamy; Vanita Noronha; Vamshi Krishna; Amit Joshi; Munita Meenu Bal; Nilendu Purandare; Rangarajan, V.; Pramesh, C. S.; Sabita Jiwnani; Kumar Prabhash

    2013-01-01

    Reporting a case, 53 years old male with stage IV Nonsamall cell lung cancer in view of cytologically proven malignant pleural effusion. Usually the management of stage IV lung cancer is with palliative intent where the patient receives palliative chemotherapy along with palliative radiotherapy and surgery if required. Most of the data on curative management of oligometastatic non-small cell lung cancer includes patient with adrenal metastasis and some reports with brain metastasis. There is ...

  8. Le Tumulus - Cromlech de Millagate IV (Compte rendu de fouilles 1986.

    Directory of Open Access Journals (Sweden)

    Jacques Blot

    1988-01-01

    Full Text Available El túmulo - cromlech de Millagate IV, excavado en 1986, mide 12 m. de diámetro y 0,50 m. de alto. Se aprecia una corona externa de grandes piedras, que en su cara interna contiene un pequeño murete de piedras dispuestas en 3 o 4 capas. En el centro, a 1 m. de profundidad, una hermosa cista de 1,10 m. x 0,50 m. contenía carbón vegetal y un importante depósito de restos óseos humanos calcinados: los restos de un único individuo, robusto, adulto, de sexo masculino; sin ningún ajuar. Es la primera vez que se encuentra un depósito de huesos semejante en un círculo de piedras del País Vasco, lo que confirma claramente la finalidad funeraria de este tipo de monumentos.

  9. Rat epileptic seizures evoked by BmK αIV and its possible mechanisms involved in sodium channels

    International Nuclear Information System (INIS)

    This study showed that rat unilateral intracerebroventricular injection of BmK αIV, a sodium channel modulator derived from scorpion Buthus martensi Karsch, induced clusters of spikes, epileptic discharges and convulsion-related behavioral changes. BmK αIV potently promoted the release of endogenous glutamate from rat cerebrocortical synaptosomes. In vitro examination of the effect of BmK αIV on intrasynaptosomal free calcium concentration [Ca2+]i and sodium concentration [Na+]i revealed that BmK αIV-evoked glutamate release from synaptosomes was associated with an increase in Ca2+ and Na+ influx. Moreover, BmK αIV-mediated glutamate release and ion influx was completely blocked by tetrodotoxin, a blocker of sodium channel. Together, these results suggest that the induction of BmK αIV-evoked epileptic seizures may be involved in the modulation of BmK αIV on tetrodotoxin-sensitive sodium channels located on the nerve terminal, which subsequently enhances the Ca2+ influx to cause an increase of glutamate release. These findings may provide some insight regarding the mechanism of neuronal action of BmK αIV in the central nervous system for understanding epileptogenesis involved in sodium channels

  10. Genótipos de haptoglobina e hipertensão refratária em pacientes com diabete melito tipo 2

    Directory of Open Access Journals (Sweden)

    Vânia Pereira Albuquerque Wobeto

    2011-10-01

    Full Text Available FUNDAMENTO: Tem sido sugerido que o polimorfismo da haptoglobina pode influenciar na patogênese das complicações microvasculares e macrovasculares em pacientes diabéticos. OBJETIVO: O objetivo principal deste estudo transversal foi de realizar uma investigação da existência ou não de uma associação entre os genótipos de haptoglobina e a prevalência de eventos isquêmicos cardiovasculares (angina estável, angina instável e infarto agudo do miocárdio, hipertensão arterial sistêmica, hipertensão refratária, obesidade e dislipidemia em 120 pacientes com diabete melito tipo 2, seguidos no Hospital Universitário da Unicamp, em Campinas, Estado de São Paulo. MÉTODOS: A genotipagem da haptoglobina foi realizada por reações em cadeia da polimerase alelo-específicas. As frequências dos genótipos de haptoglobina foram comparadas com a presença/ausência de doença cardiovascular, hipertensão arterial sistêmica, hipertensão refratária, obesidade e dislipidemia; medições de pressão arterial sistólica e diastólica; glicemia, colesterol (total, lipoproteínas de alta densidade - HDL e lipoproteínas de baixa densidade - LDL e triglicerídeos; assim como níveis de creatinina sérica. RESULTADOS: Embora nenhuma associação entre o genótipo de haptoglobina e a presença de doença cardiovascular tenha sido identificada, encontramos um excesso significativo de pacientes com o genótipo Hp2-1 entre as pessoas com hipertensão refratária, que também apresentavam uma maior pressão arterial sistólica e diastólica e níveis de colesterol total e LDL. CONCLUSÃO: Nossos resultados sugerem que os pacientes com diabete melito tipo 2 com o genótipo Hp2-1 podem apresentar uma maior chance de desenvolver hipertensão refratária. Estudos adicionais em populações diabéticas são necessários para confirmar esses achados.

  11. Resistência de genótipos de feijoeiro a Bemisia tabaci biótipo B Resistance of bean genotypes to Bemisia tabaci biotype B

    Directory of Open Access Journals (Sweden)

    Lucas Castro Torres

    2012-01-01

    Full Text Available O estudo de genótipos de feijoeiro resistentes à mosca-branca Bemisia tabaci (Genn. biótipo B (Hemiptera: Aleyrodidae é de grande importância devido aos danos ocasionados por essa praga à cultura. Neste trabalho, foram estudados a atratividade para adultos, a preferência para oviposição em testes com e sem chance de escolha, o ciclo ovo-adulto e o tipo e número de tricomas presentes nos folíolos. Os experimentos foram realizados em casa de vegetação avaliando-se, inicialmente, cem genótipos de feijoeiro. A resistência do tipo não-preferência para alimentação e/ou antibiose foi observada nos genótipos ARC-3, IAC-Alvorada e Canário 101, sendo a emergência de adultos fortemente influenciada pelos genótipos. Também se observou correlação negativa moderada entre o número de ovos e o número de tricomas glandulares, e correlação positiva muito forte entre o número de ovos e o número de tricomas tectores unciformes.The study of bean genotypes resistant to the whitefly Bemisia tabaci (Genn. B biotype (Hemiptera: Aleyrodidae has been of great importance due to the damage caused by this pest. In this research, bean genotypes were evaluated regarding attractiveness to whitefly adults, the preference for oviposition in free-choice and non choice tests, egg-to-adult development time and characterized for the presence, type and number of trichomes. The experiments were carried out under greenhouse conditions initially evaluating 100 bean genotypes. The non-preference type of resistance for feeding and/or antibiosis was observed in the genotypes ARC-3, IAC-Alvorada and Canário 101, and the emergence of adults was strongly influenced by the genotypes. It was also observed a moderate negative correlation between the number of eggs and the number of glandular trichomes, as well as a very strong positive correlation between the number of eggs and the number of unciform non-glandular trichomes.

  12. Competitividade de biótipos de capim-arroz resistente e suscetível ao quinclorac Competitiveness of echinochloa biotypes resistant and susceptible to quinclorac

    Directory of Open Access Journals (Sweden)

    G. Concenço

    2008-03-01

    Full Text Available Objetivou-se com este trabalho avaliar a competitividade de dois biótipos de capim-arroz, resistente e suscetível ao quinclorac, coletados em regiões orizícolas do Estado de Santa Catarina. O experimento foi instalado em ambiente protegido, e os tratamentos constaram de diferentes densidades de plantas dos biótipos de capim-arroz comprovadamente resistente (ITJ-13 e suscetível (ITJ-17 ao quinclorac, oriundos da região arrozeira de Itajaí/SC. No centro da unidade experimental, foram semeadas três sementes do biótipo de capim-arroz, considerado como o tratamento da unidade experimental. Na periferia foram semeadas dez sementes do biótipo oposto ao do tratamento (central. Dez dias após a germinação foi efetuado o desbaste, deixando-se apenas uma planta no centro da unidade experimental e um número variável de plantas do biótipo oposto, de acordo com o tratamento (0, 1, 2, 3, 4 ou 5 plantas por vaso. O delineamento experimental utilizado foi o completamente casualizado, em esquema fatorial 2 x 6, com quatro repetições. Aos 40 dias após a emergência, foram avaliados altura de plantas, número de afilhos e de folhas, área foliar, massa fresca e seca e conteúdo de água de colmos e folhas. Os dados foram analisados pelo teste F, sendo efetuado teste de Duncan para comparar o efeito de densidade de plantas e teste da Diferença Mínima Significativa (DMS para avaliar diferenças entre os biótipos resistente e suscetível, além de correlação linear simples entre as variáveis avaliadas. Nas análises, utilizou-se o nível de 5% de probabilidade. Os biótipos estudados de capim-arroz resistente e suscetível ao quinclorac são similares quando sob alta intensidade de competição, com vantagem em algumas variáveis para o biótipo suscetível sob baixa ou moderada intensidade competitiva.The objective of this research was to evaluate the competitive potential of two Echinochloa sp. biotypes, resistant and susceptible to

  13. Linfoma do sistema nervoso central: ensaio iconográfico

    Directory of Open Access Journals (Sweden)

    Fabiano Reis

    2013-04-01

    Full Text Available Ilustramos este ensaio iconográfico de linfoma do sistema nervoso central com imagens de ressonância magnética obtidas em nosso serviço nos últimos 13 anos e discutimos algumas das principais características radiológicas deste tipo de linfoma, primário e secundário. O linfoma sistema nervoso central é um tumor relativamente infrequente, mas alguns achados na ressonância magnética podem sugerir este diagnóstico.

  14. Linfoma do sistema nervoso central: ensaio iconográfico

    OpenAIRE

    2013-01-01

    Ilustramos este ensaio iconográfico de linfoma do sistema nervoso central com imagens de ressonância magnética obtidas em nosso serviço nos últimos 13 anos e discutimos algumas das principais características radiológicas deste tipo de linfoma, primário e secundário. O linfoma sistema nervoso central é um tumor relativamente infrequente, mas alguns achados na ressonância magnética podem sugerir este diagnóstico.

  15. Study of IV B elements carbonate complexes 1. Stability constant of thorium (IV) pentacarbonate complex

    International Nuclear Information System (INIS)

    A method for the solvent extraction of thorium (IV) by chelation and neutronic activation analysis, allows the determination of stability constant of thorium (IV) pentacarbonate complexe at an ionic strength of 1.0 and 2.5: log β = 26.2 ± 0.2 and 26.3 ± 0.2. 10 refs

  16. Confirmatory Factor Analysis of the WAIS-IV and WMS-IV in Older Adults

    Science.gov (United States)

    Miller, Delyana I.; Davidson, Patrick S. R.; Schindler, Dwayne; Messier, Claude

    2013-01-01

    New editions of the Wechsler Adult Intelligence and Memory scales are now available. Yet, given the significant changes in these new releases and the skepticism that has met them, independent evidence on their psychometric properties is much needed but currently lacking. We administered the WAIS-IV and the Older Adult version of the WMS-IV to 145…

  17. El cambio en la designación general de material (DGM de las AACR a las RDA: Definición de los atributos tipo de contenido, tipo de medio y tipo de soporte

    Directory of Open Access Journals (Sweden)

    Paola Andrea Picco Gómez

    2012-04-01

    Full Text Available Se aborda el estudio de los atributos tipo de contenido, tipo de medio y tipo de soporte definidos por el código de catalogación Resource Description and Access (RDA para solucionar los problemas que presentaba la lista de términos utilizadas para registrar la designación general de material (DGM en las Anglo American Cataloging Rules (AACR. Los términos eran ambiguos combinando aspectos referidos al contenido y clase de material del recurso. Se parte de una exhaustiva revisión bibliográfica y del estudio de los documentos que se generaron en el proceso de elaboración del nuevo código. Se menciona el trabajo conjunto entre el Joint Steering Committee (JSC y el estándar ONIX para el establecimiento de criterios que permitieron definir estos tres atributos, así como el aporte del modelo FRBR en la definición de los mismos. Se presentan ejemplos de registros bibliográficos donde se utilizan estos tres atributos en formato MARC21, ISBD consolidada a partir de la definición del área 0 y en el esquema de metadatos Dublin Core. Se finaliza destacando la necesidad de continuar con investigaciones que permitan concluir sobre la adecuación de estos tres atributos a las necesidades de los catalogadores, usuarios y a la realidad tecnológica

  18. 46 CFR Appendix IV to Part 150 - Data Sheet

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Data Sheet IV Appendix IV to Part 150 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES COMPATIBILITY OF CARGOES Pt. 150, App. IV Appendix IV to Part 150—Data Sheet EC02FE91.080 EC02FE91.081...

  19. Oxochloroalkoxide of the Cerium (IV and Titanium (IV as oxides precursor

    Directory of Open Access Journals (Sweden)

    Machado Luiz Carlos

    2002-01-01

    Full Text Available The Cerium (IV and Titanium (IV oxides mixture (CeO2-3TiO2 was prepared by thermal treatment of the oxochloroisopropoxide of Cerium (IV and Titanium (IV. The chemical route utilizing the Cerium (III chloride alcoholic complex and Titanium (IV isopropoxide is presented. The compound Ce5Ti15Cl16O30 (iOPr4(OH-Et15 was characterized by elemental analysis, FTIR and TG/DTG. The X-ray diffraction patterns of the oxides resulting from the thermal decomposition of the precursor at 1000 degreesC for 36 h indicated the formation of cubic cerianite (a = 5.417Å and tetragonal rutile (a = 4.592Å and (c = 2.962 Å, with apparent crystallite sizes around 38 and 55nm, respectively.

  20. Catalytically defective ganglioside neuraminidase in mucolipidosis IV

    International Nuclear Information System (INIS)

    Cultured skin fibroblasts from patients with mucolipidosis IV were found to be deficient in neuraminidase activity toward GDsub(la) and GDsub(lb) gangliosides radiolabelled in C3 and C7 analogs of their sialic acid residues. Neuraminidase activities toward 4-methylumbelliferyl-N-acetyl-neuraminic acid, neuraminlactose, and radiolabelled neuraminlactitol, fetuin and α1-acid glycoprotein were within the range of normal controls. Fibroblasts from parents of patients with mucolipidosis IV demonstrated intermediate levels of ganglioside neuraminidase activity and normal levels of glycoprotein neuraminidase activity. The redidual acidic neuraminidase activity toward GDsub(1a) ganglioside in the patients' fibroblasts did not differ from that of controls in its pH optimum and thermostability, but had an abnormal apparent Ksub(m) which was about 18 times higher than that of the normal enzyme. These findings suggest that mucolipidosis IV ia a ganglioside sialidosis due to a catalytically defective ganglioside neuraminidase. (author)

  1. Musiikki päiväkodissa

    OpenAIRE

    Mäkinen, Johanna

    2012-01-01

    Opinnäytetyön tarkoituksena oli selvittää kuinka paljon musiikkia painotetaan Suomen päiväkodeissa. Tarkoituksena oli myös selvittää miten päiväkodit hyödyntävät musiikkia ja näkevätkö he musiikin tärkeänä osana varhaiskasvatusta. Tutkimukseen on valittu päiväkoteja neljältä eri paikkakunnalta. Paikkakunnat sijaitsevat Lapissa, Savossa, Pohjanmaalla ja Pirkanmaalla. Havaittavissa oli myös eroja paikkakuntien välillä. Tutkimus oli kvantitatiivisesti painottunut, mutta sisältää myös kvalitat...

  2. Evaluación y caracterización de la contaminación acústica en un núcleo urbano de tipo turístico costero (El Portil, Huelva)

    OpenAIRE

    Sánchez Sánchez, Rafael

    2015-01-01

    El objetivo central de esta Tesis consiste en desarrollar una evaluación y caracterización del ruido existente en una ciudad turística costera del sur de España, en concreto el núcleo urbano de El Portil (Huelva) y su entorno, con objeto de que sirva como herramienta para mejorar el clima acústico de este tipo de ciudades. El período de estudio se ha extendido a lo largo de cuatro años, desde septiembre de 2010 hasta octubre de 2014. Para lograr este objetivo central, se han cubie...

  3. Sistema de almacenamiento de energía eléctrica en central de ciclo combinado

    OpenAIRE

    Saez Muñiz, Javier

    2016-01-01

    El presente Proyecto Final de Carrera estudia la implantación de un sistema de almacenamiento de energía eléctrica, adecuado para la instalación en una Central Eléctrica de Ciclo Combinado. Así mismo, su estructura podrá ser aplicable a otros tipos de centrales eléctricas, industrias, o instalaciones con mínimas modificaciones. El objeto incluye el estudio, cálculo y diseño del sistema de almacenamiento de energía, evaluando diferentes tipos de tecnologías existentes en la actu...

  4. Spectroscopy and chemistry of uranium IV

    International Nuclear Information System (INIS)

    Different fundamental research papers on uranium IV are presented, some were never edited. Molecular spectroscopy was used for identification and structural study of uranium IV in aqueous or organic solutions. The fields studied are: coordination, stereochemistry, electronic structure and chemical properties. For interpretation of results some studies were made with solid compounds or with thorium compounds or thorium complexes. Knowledge of actinides chemistry is improved, uranium and thorium being models for 5 f ions, extractive chemistry is better understood and new applications are possible

  5. Functions in Free-Format RPG IV

    CERN Document Server

    Martin, Jim

    2009-01-01

    Written especially for programmers adopting a free-format style, this manual explores the role of functions in writing RPG IV programs. Demonstrating the potential of functions, many topics are explored such as details about existing RPG IV built-in functions, writing new functions, using ILE concepts to use C functions, and utilizing IBM API's functions. Explaining how to write small programs, either as sub-procedures or modules, and how to gather those parts together to make programs that are easy to write and maintain, this is a natural next step for programmers familiar with a free-format

  6. Autoinmunidad y receptores tipo Toll = Autoimmunity and toll-like receptors

    Directory of Open Access Journals (Sweden)

    Ossa Giraldo, Ana Claudia

    2012-07-01

    Full Text Available La respuesta inmune innata está conformada por un conjunto de mecanismos que permiten reconocer los componentes propios del organismo y diferenciarlos de los microorganismos invasores para generar una primera línea de defensa. Este reconocimiento está mediado por diferentes receptores presentes en la superficie y en el interior de células inmunes y no inmunes; entre ellos se encuentran los siguientes: receptores tipo Toll (RTT, receptores de lectinas tipo C, receptores tipo GIR (genes inducibles por ácido retinoico y receptores tipo Nod y NALP, que reconocen patrones moleculares asociados a microorganismos (PMAM. Gracias a esta capacidad de discriminación, adquirida evolutivamente por la inmunidad innata, se ha aceptado tradicionalmente que los procesos autoinmunes no están relacionados con esta sino con la inmunidad adquirida. Sin embargo, varios estudios han demostrado que esa teoría no es totalmente cierta y que algunos mecanismos efectores de la inmunidad innata participan en la generación de las enfermedades autoinmunes o en la potenciación de su fisiopatología. En esta revisión se estudia la contribución de la inmunidad innata a la autoinmunidad con énfasis en el papel de los receptores tipo Toll.

  7. Iværksætternes eksport og vækst

    DEFF Research Database (Denmark)

    Rind Christensen, Poul

    2009-01-01

    Artiklen belyser, hvordan den erhvervspolitiske interesse i stigende grad har samlet sig om to centrale spørgsmål, nemlig antallet af iværksættere i Danmark i forhold til andre lande og andelen af vækstiværksættere. Synspunktet er, at nok er vi i Danmark kommet på højde med andre lande, når det g...

  8. Linfoma Extranodal de Células NK/T tipo Nasal Extranodal Nasal type NK/T-Cell Lymphoma

    Directory of Open Access Journals (Sweden)

    Carlos S. Chiattone

    2009-08-01

    Full Text Available O Linfoma Extranodal de Células NK/T tipo Nasal tem uma distribuição geográfica peculiar, ocorrendo mais frequentemente em países orientais e na população nativa de alguns países da América Central e da América do Sul. Sua localização preferencial é na cavidade nasal e nos seios paranasais, mas pode acometer outras estruturas da chamada região médio-facial. Tem um padrão de disseminação com "homing" característico, incluindo pele, testículo, SNC e trato digestivo. Este linfoma, menos frequentemente, pode acometer primariamente estas regiões. A maioria destas neoplasias apresenta um fenótipo NK, mas alguns poucos casos podem ter sua origem em células T verdadeiras, por este motivo é designado "linfoma NK/T". O genoma do vírus Epstein-Barr é detectado na maioria dos casos, sugerindo uma relação etiológica. Embora este linfoma seja sensível à radioterapia, apresenta mais frequentemente resistência a agentes quimioterápicos que outros linfomas. Uma possível explicação para a resistência é a usual expressão de glicoproteína-p. O prognóstico destes linfomas é pobre, sendo necessária a investigação de novas modalidades terapêuticas.Extranodal Nasal type NK/T-Cell Lymphoma has a peculiar geographic distribution, occurring more frequently in Eastern countries and in the native populations of some Central and South American countries. It is commonly found in the nasal cavity and paranasal sinuses, but may also compromise other structures in the mid-facial region. The disease has a characteristic homing dissemination pattern, including skin, testis, CNS and digestive tract. This lymphoma can, less frequently, primarily compromise these regions. The majority of these neoplastic diseases present an NK phenotype, but a few cases can be truly of T-cell origin, because of which it is designed "NK/T-cell lymphoma". The Epstein-Barr virus genome can be detected in most of the cases, suggesting an etiological

  9. Dipeptidyl peptidase-IV (DPP-IV inhibitory activity of parotid exudate of Bufo melanostictus

    Directory of Open Access Journals (Sweden)

    Allenki Venkatesham

    2009-01-01

    Full Text Available Type 2 diabetes arises as a result of β-cell failure combined with concomitant insulin resistance. Glucagon-like peptide-1 is a gastrointestinal hormone that is released postprandially from the L cells of the gut and exerts a glucose- dependent and direct insulinotropic effect on the pancreatic β cell. Which activate adenylate cyclase and enhances insulin secretion. GLP-1 is rapidly degraded by DPP-IV to GLP-1(9-37 amide following release from gut L cells. GLP-1 directly enhances glucose-dependent insulin secretion via an increase in β-cell cAMP. Dipeptidyl peptidase IV (DPP-IV is a plasma membrane glycoprotein ectopeptidase. In mammals, DPP-IV was widely expressed on the surface of endothelial and epithelial cells and highest levels in humans have been reported to occur in the intestine, bone marrow and kidney. Inhibiting DPP-IV reduces its rapid degradation of GLP-1, increasing circulating levels of the active hormone in vivo and prolonging its beneficial effects. The IC 50 value of parotid exudate was found to be 9.4 μg/ml. The maximum % inhibition (61.8 was showed at a concentration of 12μg/ml. Parotid exudate through inhibition of DPP-IV, improves glucose tolerance and enhances insulin secretion. DPP-IV inhibitors are a novel class of oral hypoglycemic agents with a potential to improve pancreatic beta cell function and the clinical course of type 2 diabetes.

  10. Plutón La Costa, una expresión de magmatismo tipo-s en el sector noreste de la Sierra de Velasco, Sierras Pampeanas

    Directory of Open Access Journals (Sweden)

    P.H. Alasino

    2006-06-01

    Full Text Available Estudios combinados de petrología, química mineral y geoquímcia de roca total revelan la presencia de dos unidades graníticas peraluminosas con minerales aluminosos magmáticos tales como granate y mica blanca y la presencia distintiva de turmalina. Las evidencias aquí presentadas indican que estas dos facies, Anillaco y Anjullón, junto a la unidad peraluminosa Santa Cruz estudiada en trabajos previos, constituyen una serie de rocas co-sanguíneas, emplazadas en niveles someros de la corteza y las cuales conforman una unidad ígnea mayor denominada aquí plutón La Costa, la cual aflora en el sector noreste de la sierra de Velasco. La asociación mineral, la química mineral y la geoquímica de roca total permiten definir al plutón La Costa como un clásico granitoide tipo-S, derivado de una roca fuente de composición esencialmente pelítica. Diferentes estudios demuestran que la generación de granitoides tipo-S requiere de un alto gradiente geotérmico, por lo cual el plutón La Costa indica que la corteza en esta región soportó un notable calentamiento durante la generación del magma. Sin embargo, la ausencia de datos geocronológicos impide definir el evento tectomagmático que produjo el magma primordial de este plutón.

  11. Tipos y uso de argumentos escépticos en Hume

    OpenAIRE

    Plínio Junqueira Smith

    2010-01-01

    La intención del presente artículo es mostrar que Hume distingue dos tipos de argumentos escépticos. El tipo antiguo, basado en el método de antinomias, es considerado muy débil por Hume. Él desarrolla un tipo nuevo de argumento escéptico a partir de su ciencia empírica de la naturaleza humana. Del otro lado, Hume distingue entre dos usos de los argumentos escépticos: el primero, que él llama pirrónico, tiene como finalidad la suspensión del juicio, lo que es imposible, porque la naturaleza n...

  12. Tipos y uso de argumentos escépticos en Hume

    Directory of Open Access Journals (Sweden)

    Plínio Junqueira Smith

    2010-12-01

    Full Text Available La intención del presente artículo es mostrar que Hume distingue dos tipos de argumentos escépticos. El tipo antiguo, basado en el método de antinomias, es considerado muy débil por Hume. Él desarrolla un tipo nuevo de argumento escéptico a partir de su ciencia empírica de la naturaleza humana. Del otro lado, Hume distingue entre dos usos de los argumentos escépticos: el primero, que él llama pirrónico, tiene como finalidad la suspensión del juicio, lo que es imposible, porque la naturaleza nos obliga a creer; el segundo, el uso académico, pone límites a nuestro conocimiento, aceptando las creencias naturales, la ciencia empírica y las matemáticas.

  13. The O IV and S IV intercombination lines in solar and stellar ultraviolet spectra

    Science.gov (United States)

    Cook, J. W.; Keenan, F. P.; Dufton, P. L.; Kingston, A. E.; Pradhan, A. K.; Zhang, H. L.; Doyle, J. G.; Hayes, M. A.

    1995-01-01

    New calculations of O IV electron density diagnostic emission-line ratios involving the 1399.8, 1401.2, 1404.8, and 14076.4 A transitions are presented. A comparison of these calculations with observational data from a quiet solar region, a sunspot, and an active region obtained with the High Resolution Telescope and Spectrograph (HRTS), two flares observed with the SO82B spectrograph on board Skylab, and Hubble Space Telescope (HST) observations by the Goddard High Resolution Spectrograph (GHRS) of Capella, gives good results using the ratio R(sub 1) = I(1407.4 A)/I(1401.2 A). However, the electron density obtained using the ratio R(sub 2) = I(1407.4 A)/I(1404.8 A) is often an order of magnitude smaller. The O IV 1404.8 A line is blended with the S IV 1404.8 A line, and we investigate whether this ratio may still be used as a density diagnostic if the S IV 1406.1 A line intensity is used to correct for the presence of S IV 1404.8 A, using previous S IV calculations by Dufton et al. We still find systematic differences compared to density determinations from line ratios that do not involve the O IV 1404.8 A line, which we suggest are due to errors in earlier theoretical calculations of the S IV atomic data, and also possibly to previously unconsidered fluorescent pumping of the upper level of the S IV 1404.8 A transition.

  14. Painlevé IV coherent states

    Energy Technology Data Exchange (ETDEWEB)

    Bermudez, David, E-mail: david.bermudez@weizmann.ac.il [Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100 (Israel); Departamento de Física, Cinvestav, A.P. 14-740, 07000 México D.F. (Mexico); Contreras-Astorga, Alonso, E-mail: aloncont@iun.edu [Department of Mathematics and Actuarial Science, Indiana University Northwest, 3400 Broadway, Gary IN 46408 (United States); Departamento de Física, Cinvestav, A.P. 14-740, 07000 México D.F. (Mexico); Fernández C, David J., E-mail: david@fis.cinvestav.mx [Departamento de Física, Cinvestav, A.P. 14-740, 07000 México D.F. (Mexico)

    2014-11-15

    A simple way to find solutions of the Painlevé IV equation is by identifying Hamiltonian systems with third-order differential ladder operators. Some of these systems can be obtained by applying supersymmetric quantum mechanics (SUSY QM) to the harmonic oscillator. In this work, we will construct families of coherent states for such subset of SUSY partner Hamiltonians which are connected with the Painlevé IV equation. First, these coherent states are built up as eigenstates of the annihilation operator, then as displaced versions of the extremal states, both involving the related third-order ladder operators, and finally as extremal states which are also displaced but now using the so called linearized ladder operators. To each SUSY partner Hamiltonian corresponds two families of coherent states: one inside the infinite subspace associated with the isospectral part of the spectrum and another one in the finite subspace generated by the states created through the SUSY technique. - Highlights: • We use SUSY QM to obtain Hamiltonians with third-order differential ladder operators. • We show that these systems are related with the Painlevé IV equation. • We apply different definitions of coherent states to these Hamiltonians using the third-order ladder operators and some linearized ones. • We construct families of coherent states for such systems, which we called Painlevé IV coherent states.

  15. Industrial Waste Landfill IV upgrade package

    Energy Technology Data Exchange (ETDEWEB)

    1994-03-29

    The Y-12 Plant, K-25 Site, and ORNL are managed by DOE`s Operating Contractor (OC), Martin Marietta Energy Systems, Inc. (Energy Systems) for DOE. Operation associated with the facilities by the Operating Contractor and subcontractors, DOE contractors and the DOE Federal Building result in the generation of industrial solid wastes as well as construction/demolition wastes. Due to the waste streams mentioned, the Y-12 Industrial Waste Landfill IV (IWLF-IV) was developed for the disposal of solid industrial waste in accordance to Rule 1200-1-7, Regulations Governing Solid Waste Processing and Disposal in Tennessee. This revised operating document is a part of a request for modification to the existing Y-12 IWLF-IV to comply with revised regulation (Rule Chapters 1200-1-7-.01 through 1200-1-7-.08) in order to provide future disposal space for the ORR, Subcontractors, and the DOE Federal Building. This revised operating manual also reflects approved modifications that have been made over the years since the original landfill permit approval. The drawings referred to in this manual are included in Drawings section of the package. IWLF-IV is a Tennessee Department of Environmental and Conservation/Division of Solid Waste Management (TDEC/DSWM) Class 11 disposal unit.

  16. Dibromidodimethyl­dipyridine­platinum(IV)

    OpenAIRE

    Kelly, Mairéad E.; Wagner, Christoph; Schmidt, Harry

    2008-01-01

    In the title complex, [PtBr2(CH3)2(C5H5N)2], the PtIV metal centre lies on a twofold rotation axis and adopts a slightly distorted octa­hedral coordination geometry. The structure displays weak intra­molecular C—H⋯Br hydrogen-bonding inter­actions.

  17. Karel IV. jako "druhý Konstantin"

    Czech Academy of Sciences Publication Activity Database

    Drbal, Vlastimil

    1. vyd. Praha : Vyšehrad, 2005, s. 112-115 ISBN 80-7021-734-0. - (Velké postavy světových dějin. 3) Institutional research plan: CEZ:AV0Z90920516 Keywords : Constantine * Byzantium * History * Charles IV Subject RIV: AB - History

  18. SFRs and GEN IV: ASN actions

    International Nuclear Information System (INIS)

    ASN carries out several actions regarding the 4th generation of reactors (GEN IV) and the sodium fast reactors (SFRs). First of all, ASN considers that GEN IV reactors have to be safer than the EPR reactor currently under construction in France (at Flamanville). Regarding GEN IV in general, the “generation IV international Forum” (GIF) has identified six technologies of reactors for which the possibility of an industrial development could be considered (SFR, GFR, HTR/VHTR, LFR, MSR, SCWR) ; these six technologies include fast reactors. Based on documents sent by French nuclear operators at its request, ASN will organize a technical expertise, with the technical safety organization IRSN and ASN Advisory Committees, in order to have an overview, in terms of safety, R&D needs and possibility of transmutation of these six technologies. The conclusions of the technical expertise are expected by the end of 2013. Concerning SFR in particular, the French operator CEA submitted to ASN in June 2012 a file presenting the general safety orientations of the prototype reactor ASTRID (Advanced Sodium Technological Reactor for Industrial Demonstration). ASN has organized, with IRSN and ASN Advisory Committees, a technical expertise to analyse this file. The conclusions of this technical expertise are expected by mid-2013. Besides, a specific analysis is going on about the transmutation. The conclusions of the analysis could be known in 2013, subject to the transmission of documents by the end of 2012

  19. TFRC—IVS Flow Control Algorithm

    Institute of Scientific and Technical Information of China (English)

    HEKaijian; LINYaping; YANGAng

    2003-01-01

    This paper investigates the TCP (Trans-mission Control Protocol) friendliness of multicast video-conferencing systems. Through the analysis and simulation experiments it is shown that the slow response to network state changes and the fixed rate adjustment process lead to TCP unfriendliness in the bandwidth sharing. Therefore,this paper proposes a new TCP friendly flow control al-gorithm called TFRC-IVS flow control algorithm for the current best-effort Internet. TFRC-IVS (TCP-Friendly Rate Control--INRIA Videoconferencing System) algo-rithm utilizes TCP friendly control function derived from complex TCP model to calculate TCP friendly sending rate.Simulation results show that TFRC-IVS flow control algorithm improves the smoothness of transmission rates and converges quickly to the stable sending rate. In addi-tion, the TCP friendly control function in TFRC-IVS flow control algorithm ensures the TCP friendliness of video flows and fair bandwidth allocation with TCP flows, which the traditional static rate adjustment algorithm lacks.

  20. Bis(benzyltriethylammonium hexachloridostannate(IV

    Directory of Open Access Journals (Sweden)

    Seik Weng Ng

    2010-10-01

    Full Text Available The reaction between benzyltriethylammonium chloride and dimethyltin dichloride yields the title salt, [(C6H5CH2(C2H53N]2[SnCl6]. The SnIV atom, located on a center of inversion, exists in an octahedral coordination environment. The cation links with the anion via weak C—H...Cl hydrogen bonding.

  1. Scylla IV-P theta pinch

    International Nuclear Information System (INIS)

    Scylla IV-P is a flexible, linear theta pinch designed to investigate high-density linear concepts, end-stoppering, alternate heating methods, and plasma injection techniques relevant to a pure fusion reactor and/or a fusion-fission hybrid system. The construction and experimental arrangement of the device are briefly described

  2. 21 CFR 1308.14 - Schedule IV.

    Science.gov (United States)

    2010-04-01

    ... § 1308.14, see the List of CFR Sections Affected, which appears in the Finding Aids section of the... 21 Food and Drugs 9 2010-04-01 2010-04-01 false Schedule IV. 1308.14 Section 1308.14 Food and Drugs DRUG ENFORCEMENT ADMINISTRATION, DEPARTMENT OF JUSTICE SCHEDULES OF CONTROLLED...

  3. Industrial Waste Landfill IV upgrade package

    International Nuclear Information System (INIS)

    The Y-12 Plant, K-25 Site, and ORNL are managed by DOE's Operating Contractor (OC), Martin Marietta Energy Systems, Inc. (Energy Systems) for DOE. Operation associated with the facilities by the Operating Contractor and subcontractors, DOE contractors and the DOE Federal Building result in the generation of industrial solid wastes as well as construction/demolition wastes. Due to the waste streams mentioned, the Y-12 Industrial Waste Landfill IV (IWLF-IV) was developed for the disposal of solid industrial waste in accordance to Rule 1200-1-7, Regulations Governing Solid Waste Processing and Disposal in Tennessee. This revised operating document is a part of a request for modification to the existing Y-12 IWLF-IV to comply with revised regulation (Rule Chapters 1200-1-7-.01 through 1200-1-7-.08) in order to provide future disposal space for the ORR, Subcontractors, and the DOE Federal Building. This revised operating manual also reflects approved modifications that have been made over the years since the original landfill permit approval. The drawings referred to in this manual are included in Drawings section of the package. IWLF-IV is a Tennessee Department of Environmental and Conservation/Division of Solid Waste Management (TDEC/DSWM) Class 11 disposal unit

  4. Bis(4-methylpiperidinium hexachloridostannate(IV

    Directory of Open Access Journals (Sweden)

    Madeleine Helliwell

    2008-04-01

    Full Text Available The crystal structure of the title compound, (C6H14N2[SnCl6], is built of 4-methylpiperidinium cations, occupying special positions on the mirror plane, and hexachloridostannate(IV anions on a special position of 2/m symmetry. The ions are linked via N—H...Cl hydrogen bonds into chains running along the b axis.

  5. Las funciones de tipo como marcador del discurso en el lenguaje juvenil de Buenos Aires: un estudio descriptivo

    OpenAIRE

    Huseby, Stine

    2010-01-01

    El objetivo de este trabajo es analizar cómo los jóvenes de Buenos Aires aplican el marcador del discurso tipo en las conversaciones coloquiales para poder dar respuesta a la siguiente pregunta: ¿Qué funciones desempeña tipo como marcador de discurso en las conversaciones coloquiales entre jóvenes porteños, partiendo de los dos hipótesis de que 1)tipo está pasando por un proceso de gramaticalización y que 2)hay seis funciones de tipo como marcador del discurso; atenuante, aproximador, ejempli...

  6. Ehlers-Danlos syndrome type IV

    Directory of Open Access Journals (Sweden)

    Germain Dominique P

    2007-07-01

    Full Text Available Abstract Ehlers-Danlos syndrome type IV, the vascular type of Ehlers-Danlos syndromes (EDS, is an inherited connective tissue disorder defined by characteristic facial features (acrogeria in most patients, translucent skin with highly visible subcutaneous vessels on the trunk and lower back, easy bruising, and severe arterial, digestive and uterine complications, which are rarely, if at all, observed in the other forms of EDS. The estimated prevalence for all EDS varies between 1/10,000 and 1/25,000, EDS type IV representing approximately 5 to 10% of cases. The vascular complications may affect all anatomical areas, with a tendency toward arteries of large and medium diameter. Dissections of the vertebral arteries and the carotids in their extra- and intra-cranial segments (carotid-cavernous fistulae are typical. There is a high risk of recurrent colonic perforations. Pregnancy increases the likelihood of a uterine or vascular rupture. EDS type IV is inherited as an autosomal dominant trait that is caused by mutations in the COL3A1 gene coding for type III procollagen. Diagnosis is based on clinical signs, non-invasive imaging, and the identification of a mutation of the COL3A1 gene. In childhood, coagulation disorders and Silverman's syndrome are the main differential diagnoses; in adulthood, the differential diagnosis includes other Ehlers-Danlos syndromes, Marfan syndrome and Loeys-Dietz syndrome. Prenatal diagnosis can be considered in families where the mutation is known. Choriocentesis or amniocentesis, however, may entail risk for the pregnant woman. In the absence of specific treatment for EDS type IV, medical intervention should be focused on symptomatic treatment and prophylactic measures. Arterial, digestive or uterine complications require immediate hospitalisation, observation in an intensive care unit. Invasive imaging techniques are contraindicated. Conservative approach is usually recommended when caring for a vascular

  7. Branduolinio tipo ekstremaliųjų situacijų prevencijos ir parengties analizė

    OpenAIRE

    Gaidamavičiūtė, Alina

    2014-01-01

    Magistro baigiamajame darbe išanalizuotos ir įvertintos branduolinio tipo ekstremaliųjų situacijų prevencijos ir parengties priemonės. Pirmoje darbo dalyje teoriniu aspektu tiriama branduolinės saugos bei ekstremaliųjų situacijų valdymo ciklo prevencijos ir parengties fazių samprata. Taip pat išanalizuojamas technologinio pobūdžio rizikos suvokimas, jos valdymo ypatumai bei branduolinių tipo ekstremaliųjų situacijų klasifikavimas pagal tarptautinę branduolinių ir radiologinių įvykių skalę. An...

  8. Análisis de los diferentes tipos de perfiles de los menores infractores

    OpenAIRE

    Sisternes Tercero, Vicent; Cuervo Gómez, Keren

    2015-01-01

    Gran cantidad de jóvenes cometen o se ven involucrados en algún tipo de delito durante su adolescencia. Este estudio pretende analizar los perfiles de los menores infractores desde las variables del género, la edad, la nacionalidad y el tipo de delito, centrándose también en la reincidencia de dichos menores. Los participantes de este estudio son 395 menores del Juzgado de Castellón, de entre 14 y 18 años, y en su mayoría de género masculino. Se ha realizado un análisis de los ...

  9. Personas con diabetes mellitus tipo 2 y su capacidad de agencia de autocuidado, cartagena

    OpenAIRE

    Herrera Lían, Arleth; Andrade, Yesid; Hernández, Orlando; Manrique, Julián; Faria, Karen; Machado, Mayerly

    2012-01-01

    Contexto: La diabetes mellitus tipo 2 se constituye en un problema de salud pública por las repercusiones bio-psicosociales, la presencia de complicaciones neurovasculares y metabólicas en la persona que la padece. Enfermería cumple un papel importante a través de la educación y la capacitación.Objetivo: Identificar la capacidad de agencia de autocuidado de las personas con diagnóstico de diabetes mellitus tipo 2, inscritos en los programas de control de diabetes en 19 UPAS de Cartagena.Metod...

  10. EVIDENCIA DE UN TIPO INVESTIGACIÓN QUE ABORDE DE MILES Y SNOW EN BRASIL

    OpenAIRE

    Vanderlei Vieira; Roberto Klosowski Machado; Nathanael Kusch Brey; Carlos Ricardo Rossetto

    2012-01-01

    El objetivo de este trabajo es analizar las referencias utilizadas en las publicaciones de las conferencias nacionales que las tipologías actuales de gestión desarrolladas por Miles y Snow. El método utilizado en el estudio fue de tipo descriptivo, con abordaje cuantitativo, y el estudio bibliométrico tipo. En la selección de artículos, se tomó como base la existencia del término "Miles y Snow" en el título, resumen o palabras clave, la observación de la literatura mencionada en los artículos...

  11. Cálculo, diseño y prototipo de un reductor tipo cyclo

    OpenAIRE

    Picatoste Olloqui, Ignacio

    2009-01-01

    Existe en el mercado una gran variedad de diseños y arquitecturas válidas para la construcción de un reductor. El objetivo de este proyecto es el diseño y cálculo de uno de tipo trocoidal, de modo que pueda ser prototipado por una empresa en el desarrollo de impresoras de gran formato e industrial. Se pretende dar salida a problemas de espacio en la distribución interna de las máquinas, así como de mejorar su calidad. Los reductores de tipo trocoidal tienen un tamaño muy compac...

  12. Tema 2. Tipos de plásticos, aditivación y mezclado

    OpenAIRE

    Beltrán Rico, Maribel

    2011-01-01

    En este tema se presenta una clasificación de los distintos tipos de plásticos y se explica qué propiedades poseen en común los plásticos pertenecientes a una misma familia y qué tipo de estructura les confiere este conjunto de propiedades. En la segunda parte del tema, se describen los principales aditivos empleados en la industria de transformación de plásticos, los mecanismos de acción y el conjunto de propiedades que modifican. A continuación, se describen los mecanismos de mezclado y se ...

  13. Tipos de trabalho da mulher na pesca do Litoral do Paraná

    OpenAIRE

    Mello, Carolina de Andrade

    2013-01-01

    Resumo: Este estudo trata dos tipos de trabalho realizados pelas mulheres na pesca do litoral do Paraná. A investigação foi realizada em três etapas. A primeira tratou-se de uma fase exploratória, de revisão bibliográfica e visitas as comunidades pesqueiras para identificação de casos representativos dos tipos de trabalho realizados pelas mulheres. A segunda etapa incluiu a aplicação de um questionário semi-estruturado, a realização de entrevistas abertas com roteiro, conversas informais e ob...

  14. A semântica da palavra mentira e o seu protótipo cognitivo

    OpenAIRE

    Biondo, Delson, 1965-

    2013-01-01

    Resumo: A categoria mental nomeada pela palavra mentira pode ser estudada a partir das noções de protótipo e de gracfaçao. 0 protótipo da mentira é uma espécie de "imagem mental" formada por uma união de elementos de diferentes pesos cognitivos. Atos de fala que contêm alguns desses elementos podem ou não ser considerados pelos falantes como exemplos da categoria mentira. Um experimento desenvolvido com o objetivo de investigar esses fenômenos demonstrou que fatores externos como sexo e profi...

  15. Estudio comparativo in vitro del ajuste marginal con casquetes colados realizados sobre pilares sobre implantes de titanio y pilares reproducidos en yeso tipo IV

    OpenAIRE

    Tomaghelli, Emanuel Ricardo

    2006-01-01

    Para la fabricación de un casquete colado se requiere de un material de impresión que reproduzca un negativo lo más exacto posible, el que luego será llenado “vaciado” con un material cerámico (yeso en algunas de sus formas) para realizar un modelo de trabajo, sobre el cual se confeccionará el encerado del patrón (casquete), y mediante la técnica de colado “técnica de la cera perdida” se transformará ese patrón de cera en un patrón de aleación metálica. Para conseguir el mejor resultado de aj...

  16. Análise comparativa dos efeitos da base socioeconômica, dos tipos de crime e das condições de prisão na reincidência criminal Comparative analysis of the effects of socioeconomic status, crime type and prison conditions on criminal recidivism

    OpenAIRE

    Juan Mario Fandiño Mariño

    2002-01-01

    O objetivo central do trabalho é identificar e mensurar o poder explicativo relativo das seguintes três dimensões causais hipotéticas da reincidência criminal: a) variáveis biográficas ou socioeconômicas, a saber: estado civil, filhos, naturalidade, idade, religião, raça, instrução formal e nível de qualificação da ocupação; b) tipo de delito, segundo os seguintes oito tipos simplificados: homicídios, lesões corporais, roubos, furtos, estelionatos, posse e uso de entorpecentes e estupros); e ...

  17. Studies on hydrazone and azine derivatives of bis(indenyl)-titanium(IV) and -zirconium(IV)

    International Nuclear Information System (INIS)

    Hydrazone and azine derivatives of bis(indenyl)-titanium(IV) and -zirconium(IV) of the types M(C6H4OCR':NNHR)(C9H7)2Cl and M(C6H4OCR'':NN:CR''OC6H4)(C9H7)2, where M = Ti or Zr, R = H or CH3, R' = H.C6H5 or C6H3(NO2)2 and R'' = H or CH3, have been synthesized by the reaction of bis(indenyl)titanium(IV)/zirconium(IV) dichloride and appropriate hydrazone or azine in equimolar ratio in refluxing tetrahydrofuran. The products have been characterized by chemical analyses, electrical conductance, IR, 1H NMR and electronic spectral studies. (author)

  18. Neurinoma central do nervo acústico

    Directory of Open Access Journals (Sweden)

    Paulo Pinto Pupo

    1950-03-01

    Full Text Available O autor apresenta o caso de uma paciente com 45 anos, com hipertensão arterial, queixando-se de tonturas e surdez progressiva à esquerda que, ao exame neurológico, apresentava síndrome protuberancial, com hemi-anestesia táctil e dolorosa à direita respeitando a face, hemiparesia direita, ataxia de tipo sensitivo nos membros da direita, paralisia facial de tipo periférico, hipoacusia, paresia de motor ocular externo à esquerda, síndrome vertiginosa e nistagmo horizontal ao olhar para a direita. À necrópsia foi encontrado um tumor na hemicalota protuberancial esquerda e foco malácico adjacente, secundário a distúrbio circulatório. O tumor, intimamente dependente das raízes intraprotuberanciais do nervo acústico, se apresentava com as características histológicas dos neurinomas. Além dessas particularidades, a lesão do feixe central da calota e conseqüente degeneração "hipertrófica" da oliva bulbar constituem outro aspecto de grande interêsse dêste caso.

  19. Annotations on Mexico's WISC-IV: a validity study.

    Science.gov (United States)

    Fina, Anthony D; Sánchez-Escobedo, Pedro; Hollingworth, Liz

    2012-01-01

    This project seeks to provide evidence on the internal structure of the Escala Wechsler de Inteligencia para Niños-IV (EWIN-IV; Wechsler, 2007a ) through a confirmatory factor analysis and intercorrelational study. Also provided is information on the adaptation process and other sources of validity evidence in support of the EWIN-IV norms. The standardization data for the EWIN-IV were used for all analyses. The factor loadings and correlational patterns found on the EWIN-IV are comparable to those seen in the American versions of the test. The proposed factor and scoring structure of the EWIN-IV was supported. PMID:23428273

  20. Total viable bacteria removal by means of an electrostatic air cleaner; Abbattimento della carica batterica totale aerodispersa mediante barriera filtrante di tipo elettrostatico

    Energy Technology Data Exchange (ETDEWEB)

    Bontempi, L. [Tecnica Bontempi snc, Calvisano BS (Italy); D' Errico, M. [Ancona Univ., Ancona (Italy). Facolta' di Medicina; Fava, G. [Ancona Univ., Ancona (Italy). Dipt. di Scienze dei Materiali e della Terra

    2001-01-01

    The paper presents the methodology followed in order to define the relationship between the removal of inorganic and/or viable particulates and a commercial electrostatic precipitator, FEMEC like configured. Inorganic aerosols needed to control the efficiency removal were generated through an ultrasonic home humidifier, while a bacterial characterised air flow was obtained directly from the duet work of the central heating and cooling system serving the environmental analyses laboratory of the University of Ancona. Microbiological analyses were performed by a traditional plate count method. The difference between the amount of viable bacteria evaluated on plate count data, in the presence of electrostatic filtration, results statistically significative. Bacterial removal by electrostatic filtration resulted on an average of 79% of the samples analysed. [Italian] Il presente lavoro riassume la metodologia seguita per la definizione del rapporto esistente fra il funzionamento di un filtro elettrostatico commerciale a piastre doppio stadio tipo FEMEC e l'abbattimento sia di particolato inorganico sia di particolato di tipo biologico vivo, provenienti da impianti di termoventilazione. La generazione di particolato inorganico e' stata realizzata tramite generatore ultrasonico alimentato con soluzione salina di solfato di ammonio. La carica batterica in ingresso al filtro e' stata ottenuta direttamente dall'impianto di climatizzazione di tipo misto al servizio del laboratorio chimico ambientale dell'Universita' di Ancona. Nelle condizioni operative impiegate e' stata verificata una differenza statisticamente significativa dell'abbattimento della carica batterica totale ottenuta tramite filtrazione elettrostatica dell'aria. Il risultato dei conteggi nei campioni di aria filtrati evidenzia un conteggio nullo nel 79%, contro un 37% nei prelievi eseguiti in assenza di filtrazione.

  1. El efecto de la inflación sobre el vínculo tipo de cambio-tasa de interés. Análisis para un panel de países desarrollados

    OpenAIRE

    Cienfuegos Velasco, Francisco

    2004-01-01

    En este trabajo se analizó el período histórico de 1980-2002 en cinco pequeñas economías abiertas: Australia, Canadá, Nueva Zelanda, Suecia y Noruega. El propósito central es analizar el efecto del proceso de desinflación que inició en forma simultánea a principios de la década de los noventa en estos países sobre el vínculo entre el tipo de cambio real y el diferencial de intereses. En un ambiente de inflación estable, se espera que un incremento en el tipo de cambio rea...

  2. Central Pain Syndrome

    Science.gov (United States)

    ... Enhancing Diversity Find People About NINDS NINDS Central Pain Syndrome Information Page Table of Contents (click to ... being done? Clinical Trials Organizations What is Central Pain Syndrome? Central pain syndrome is a neurological condition ...

  3. Efeitos na fotossíntese e área foliar de cultivares de alface inoculadas mecanicamente com patótipos do Lettuce mosaic virus e Lettuce mottle virus

    Directory of Open Access Journals (Sweden)

    Jadão Adriana S

    2004-01-01

    Full Text Available Levantamentos realizados no estado de São Paulo indicaram a ocorrência isolada e em infecções mistas do Lettuce mosaic virus (LMV e do Lettuce mottle virus (LeMoV em plantas de alface (Lactuca sativa. O presente trabalho teve como objetivo estudar os efeitos da infecção isolada e mista entre o LMV (patótipos II e IV e o LeMoV, em cultivares de alface suscetível (White Boston e tolerante (Elisa - gene mol¹ ao LMV patótipo II. As plantas foram inoculadas via extrato vegetal tamponado com isolados de LMV-II, LMV-IV e LeMoV separadamente e em diferentes combinações, com intervalo de 24 h ou simultaneamente com os dois vírus. As plantas infetadas foram analisadas utilizando-se hospedeiras diferenciais para o LMV e o LeMoV, e no caso do LMV pelo teste sorológico de PTA-ELISA. Nas avaliações de peso fresco e seco, área foliar e teor de clorofila, observou-se que a cultivar White Boston foi a mais afetada por ambos os vírus. As infecções mistas e isoladas na cultivar Elisa causaram efeitos semelhantes, provavelmente devido a presença do gene mo1¹ de tolerância ao LMV-II. O isolado LMV-IV foi considerado o mais agressivo nestas cultivares quando comparado ao LMV-II e o LeMoV.

  4. Uso de neumocitos de tipo II en el tratamiento de enfermedades pulmonares asociadas con fibrosis pulmonar

    OpenAIRE

    Serrano-Mollar, Anna; Closa, Daniel; Bulbena, Oriol

    2005-01-01

    Se describe el empleo de neumocitos tipo II como agentes inhibidores de la proliferación de fibroblastos, por lo que pueden ser utilizados en la elaboración de un medicamento para el tratamientode enfermedades pulmonares que cursan con fibrosis pulmonar.

  5. Diseño e implementación de un robot tipo ameba

    OpenAIRE

    Raindo Portillo, José Ramón

    2012-01-01

    White Moon es un proyecto de investigación, en el cual se estudia la viabilidad en el diseño, la construcción y la programación de un robot tipo ameba controlado por un ordenador, utilizando elementos comunes en la robótica actual, como actuadores prismáticos o sensores.

  6. Giant piezoelectricity of monolayer group IV monochalcogenides

    Science.gov (United States)

    Fei, Ruixiang; Li, Wenbin; Li, Ju; Yang, Li

    We predict enormous, anisotropic piezoelectric effects in intrinsic monolayer group IV monochalcogenides (MX, M =Sn or Ge, X =Se or S), including SnSe, SnS, GeSe, and GeS. Using first-principle simulations based on the modern theory of polarization, we find that their piezoelectric coefficients are about one to two orders of magnitude larger than those of other 2D materials, such as MoS2 and GaSe, and bulk quartz and AlN which are widely used in industry. This enhancement is a result of the unique ``puckered'' C2v symmetry and electronic structure of monolayer group IV monochalcogenides. Given the achieved experimental advances in the fabrication of monolayers, their flexible character, and ability to withstand enormous strain, these 2D structures with giant piezoelectric effects may be promising for a broad range of applications such as nano-sized sensors, piezotronics, and energy harvesting in portable electronic devices.

  7. [Fe IV] Emission in Ionized Nebulae

    Directory of Open Access Journals (Sweden)

    M. Rodríguez

    2003-01-01

    Full Text Available Se presentan los resultados de un análisis de la emisión en [Fe IV] en varias nebulosas ionizadas, basado en nuevas identificaciones y medidas anteriores de líneas de [Fe IV]. Las abundancias de Fe obtenidas al sumar las abundancias de los iones relevantes (principalmente Fe++ y Fe3+ resultan ser menores, por factores en el rango 2.6-5.9, que las abundancias implicadas por las líneas de [Fe III] y un factor de corrección por la ionizacion obtenido con modelos de ionizacion. Se discuten las posibles razones de esta discrepancia así como las implicaciones que tiene para nuestro entendimiento tanto de la evolución del polvo en nebulosas ionizadas como de la historia química de galaxias de baja metalicidad.

  8. IV-VI ferromagnetic semiconductors recent studies

    Directory of Open Access Journals (Sweden)

    Dobrowolski W.

    2006-01-01

    Full Text Available In some IV-VI semimagnetic semiconductors, the RKKY interaction can dominate over the standard d-d superexchange and become the driving mechanism for ion-ion coupling. In effect, for low hole concentrations the Mn ion system is in a paramagnetic phase, whereas for higher ones it reveals typical ferromagnetic behavior. In this paper, recent work on IV-VI ferromagnetic (SnMnTe, PbSnMnTe and GeMnTe systems will be presented. In particular, the influence of the presence of two types of magnetic ions (transition metal: Mn and rare earth metal: Eu or Er incorporated into a semiconductor matrix on magnetic properties of resultant semimagnetic semiconductor will be described.

  9. Fluctuations in type IV pilus retraction

    CERN Document Server

    Linden, M; Jonsson, A B; Wallin, M; Linden, Martin; Johansson, Emil; Jonsson, Ann-Beth; Wallin, Mats

    2005-01-01

    The type IV pilus retraction motor is found in many important bacterial pathogens. It is the strongest known linear motor protein and is required for bacterial infectivity. We characterize the dynamics of type IV pilus retraction in terms of a stochastic chemical reaction model. We find that a two state model can describe the experimental force velocity relation and qualitative dependence of ATP concentration. The results indicate that the dynamics is limited by an ATP-dependent step at low load and a force-dependent step at high load, and that at least one step is effectively irreversible in the measured range of forces. The irreversible nature of the sub-step(s) lead to interesting predictions for future experiments: We find different parameterizations with mathematically identical force velocity relations but different fluctuations (diffusion constant). We also find a longer elementary step compared to an earlier analysis, which agrees better with known facts about the structure of the pilus filament and e...

  10. Echocardiographic abnormalities in type IV mucopolysaccharidosis.

    OpenAIRE

    John, R. M.; Hunter, D; Swanton, R. H.

    1990-01-01

    Cardiac involvement is well recognised in most forms of the mucopolysaccharidoses but there is poor documentation of abnormalities specific to Morquio's syndrome (type IV mucopolysaccharidosis). Ten patients with the classic form or type A Morquio's syndrome with a median age of 12.5 years underwent echocardiographic assessment. Abnormalities were detected in six (60%) cases with mitral valve involvement in five patients and aortic valve disease in four. One patient had severe mitral leaflet ...

  11. The IVS data input to ITRF2014

    Science.gov (United States)

    Nothnagel, Axel; Alef, Walter; Amagai, Jun; Andersen, Per Helge; Andreeva, Tatiana; Artz, Thomas; Bachmann, Sabine; Barache, Christophe; Baudry, Alain; Bauernfeind, Erhard; Baver, Karen; Beaudoin, Christopher; Behrend, Dirk; Bellanger, Antoine; Berdnikov, Anton; Bergman, Per; Bernhart, Simone; Bertarini, Alessandra; Bianco, Giuseppe; Bielmaier, Ewald; Boboltz, David; Böhm, Johannes; Böhm, Sigrid; Boer, Armin; Bolotin, Sergei; Bougeard, Mireille; Bourda, Geraldine; Buttaccio, Salvo; Cannizzaro, Letizia; Cappallo, Roger; Carlson, Brent; Carter, Merri Sue; Charlot, Patrick; Chen, Chenyu; Chen, Maozheng; Cho, Jungho; Clark, Thomas; Collioud, Arnaud; Colomer, Francisco; Colucci, Giuseppe; Combrinck, Ludwig; Conway, John; Corey, Brian; Curtis, Ronald; Dassing, Reiner; Davis, Maria; de-Vicente, Pablo; De Witt, Aletha; Diakov, Alexey; Dickey, John; Diegel, Irv; Doi, Koichiro; Drewes, Hermann; Dube, Maurice; Elgered, Gunnar; Engelhardt, Gerald; Evangelista, Mark; Fan, Qingyuan; Fedotov, Leonid; Fey, Alan; Figueroa, Ricardo; Fukuzaki, Yoshihiro; Gambis, Daniel; Garcia-Espada, Susana; Gaume, Ralph; Gaylard, Michael; Geiger, Nicole; Gipson, John; Gomez, Frank; Gomez-Gonzalez, Jesus; Gordon, David; Govind, Ramesh; Gubanov, Vadim; Gulyaev, Sergei; Haas, Ruediger; Hall, David; Halsig, Sebastian; Hammargren, Roger; Hase, Hayo; Heinkelmann, Robert; Helldner, Leif; Herrera, Cristian; Himwich, Ed; Hobiger, Thomas; Holst, Christoph; Hong, Xiaoyu; Honma, Mareki; Huang, Xinyong; Hugentobler, Urs; Ichikawa, Ryuichi; Iddink, Andreas; Ihde, Johannes; Ilijin, Gennadiy; Ipatov, Alexander; Ipatova, Irina; Ishihara, Misao; Ivanov, D. V.; Jacobs, Chris; Jike, Takaaki; Johansson, Karl-Ake; Johnson, Heidi; Johnston, Kenneth; Ju, Hyunhee; Karasawa, Masao; Kaufmann, Pierre; Kawabata, Ryoji; Kawaguchi, Noriyuki; Kawai, Eiji; Kaydanovsky, Michael; Kharinov, Mikhail; Kobayashi, Hideyuki; Kokado, Kensuke; Kondo, Tetsuro; Korkin, Edward; Koyama, Yasuhiro; Krasna, Hana; Kronschnabl, Gerhard; Kurdubov, Sergey; Kurihara, Shinobu; Kuroda, Jiro; Kwak, Younghee; La Porta, Laura; Labelle, Ruth; Lamb, Doug; Lambert, Sébastien; Langkaas, Line; Lanotte, Roberto; Lavrov, Alexey; Le Bail, Karine; Leek, Judith; Li, Bing; Li, Huihua; Li, Jinling; Liang, Shiguang; Lindqvist, Michael; Liu, Xiang; Loesler, Michael; Long, Jim; Lonsdale, Colin; Lovell, Jim; Lowe, Stephen; Lucena, Antonio; Luzum, Brian; Ma, Chopo; Ma, Jun; Maccaferri, Giuseppe; Machida, Morito; MacMillan, Dan; Madzak, Matthias; Malkin, Zinovy; Manabe, Seiji; Mantovani, Franco; Mardyshkin, Vyacheslav; Marshalov, Dmitry; Mathiassen, Geir; Matsuzaka, Shigeru; McCarthy, Dennis; Melnikov, Alexey; Michailov, Andrey; Miller, Natalia; Mitchell, Donald; Mora-Diaz, Julian Andres; Mueskens, Arno; Mukai, Yasuko; Nanni, Mauro; Natusch, Tim; Negusini, Monia; Neidhardt, Alexander; Nickola, Marisa; Nicolson, George; Niell, Arthur; Nikitin, Pavel; Nilsson, Tobias; Ning, Tong; Nishikawa, Takashi; Noll, Carey; Nozawa, Kentarou; Ogaja, Clement; Oh, Hongjong; Olofsson, Hans; Opseth, Per Erik; Orfei, Sandro; Pacione, Rosa; Pazamickas, Katherine; Petrachenko, William; Pettersson, Lars; Pino, Pedro; Plank, Lucia; Ploetz, Christian; Poirier, Michael; Poutanen, Markku; Qian, Zhihan; Quick, Jonathan; Rahimov, Ismail; Redmond, Jay; Reid, Brett; Reynolds, John; Richter, Bernd; Rioja, Maria; Romero-Wolf, Andres; Ruszczyk, Chester; Salnikov, Alexander; Sarti, Pierguido; Schatz, Raimund; Scherneck, Hans-Georg; Schiavone, Francesco; Schreiber, Ulrich; Schuh, Harald; Schwarz, Walter; Sciarretta, Cecilia; Searle, Anthony; Sekido, Mamoru; Seitz, Manuela; Shao, Minghui; Shibuya, Kazuo; Shu, Fengchun; Sieber, Moritz; Skjaeveland, Asmund; Skurikhina, Elena; Smolentsev, Sergey; Smythe, Dan; Sousa, Don; Sovers, Ojars; Stanford, Laura; Stanghellini, Carlo; Steppe, Alan; Strand, Rich; Sun, Jing; Surkis, Igor; Takashima, Kazuhiro; Takefuji, Kazuhiro; Takiguchi, Hiroshi; Tamura, Yoshiaki; Tanabe, Tadashi; Tanir, Emine; Tao, An; Tateyama, Claudio; Teke, Kamil; Thomas, Cynthia; Thorandt, Volkmar; Thornton, Bruce; Tierno Ros, Claudia; Titov, Oleg; Titus, Mike; Tomasi, Paolo; Tornatore, Vincenza; Trigilio, Corrado; Trofimov, Dmitriy; Tsutsumi, Masanori; Tuccari, Gino; Tzioumis, Tasso; Ujihara, Hideki; Ullrich, Dieter; Uunila, Minttu; Venturi, Tiziana; Vespe, Francesco; Vityazev, Veniamin; Volvach, Alexandr; Vytnov, Alexander; Wang, Guangli; Wang, Jinqing; Wang, Lingling; Wang, Na; Wang, Shiqiang; Wei, Wenren; Weston, Stuart; Whitney, Alan; Wojdziak, Reiner; Yatskiv, Yaroslav; Yang, Wenjun; Ye, Shuhua; Yi, Sangoh; Yusup, Aili; Zapata, Octavio; Zeitlhoefler, Reinhard; Zhang, Hua; Zhang, Ming; Zhang, Xiuzhong; Zhao, Rongbing; Zheng, Weimin; Zhou, Ruixian; Zubko, Nataliya

    2015-01-01

    Very Long Baseline Interferometry (VLBI) is a primary space-geodetic technique for determining precise coordinates on the Earth, for monitoring the variable Earth rotation and orientation with highest precision, and for deriving many other parameters of the Earth system. The International VLBI Service for Geodesy and Astrometry (IVS, http://ivscc.gsfc.nasa.gov/) is a service of the International Association of Geodesy (IAG) and the International Astronomical Union (IAU). The datasets published here are the results of individual Very Long Baseline Interferometry (VLBI) sessions in the form of normal equations in SINEX 2.0 format (http://www.iers.org/IERS/EN/Organization/AnalysisCoordinator/SinexFormat/sinex.html, the SINEX 2.0 description is attached as pdf) provided by IVS as the input for the next release of the International Terrestrial Reference System (ITRF): ITRF2014. This is a new version of the ITRF2008 release (Bockmann et al., 2009). For each session/ file, the normal equation systems contain elements for the coordinate components of all stations having participated in the respective session as well as for the Earth orientation parameters (x-pole, y-pole, UT1 and its time derivatives plus offset to the IAU2006 precession-nutation components dX, dY (https://www.iau.org/static/resolutions/IAU2006_Resol1.pdf). The terrestrial part is free of datum. The data sets are the result of a weighted combination of the input of several IVS Analysis Centers. The IVS contribution for ITRF2014 is described in Bachmann et al (2015), Schuh and Behrend (2012) provide a general overview on the VLBI method, details on the internal data handling can be found at Behrend (2013).

  12. Republic of Congo; 2013 Article IV Consultation

    OpenAIRE

    International Monetary Fund

    2013-01-01

    This paper assesses the Republic of Congo’s discussions in 2013 Article IV Consultation. Though having abundance of natural resources, notably oil and iron ore, Congo has achieved limited progress in poverty alleviation, and remains vulnerable to external shocks. Weak governance and business conditions are significant constraints to private sector development and growth inclusiveness. The IMF report shows that Congo’s main challenge is to ensure long-term macroeconomic stability in the fa...

  13. Republic of Lithuania; 2011 Article IV Consultation

    OpenAIRE

    International Monetary Fund

    2011-01-01

    The 2011 Article IV Consultation reports that the economy in the Republic of Lithuania has staged an impressive recovery based on a supportive global environment and determined policy adjustment. The main driver of the recovery was export growth. Executive Directors commended the authorities for Lithuania’s impressive economic recovery, noting in particular the sizable fiscal consolidation and the maintenance of confidence in the banking system. Directors also supported the authorities’ g...

  14. Aqueous Pu(IV) sorption on brucite

    International Nuclear Information System (INIS)

    The sorption behavior of aqueous Pu(IV) on brucite (Mg(OH)2) in the presence and absence of citrate was investigated by a combination of wet chemical batch sorption experiments and X-ray photoelectron spectroscopy (XPS). Sorption occurs rapidly at near 100% levels from pH 8 to pH 13, and is not affected by the presence of citrate. XPS results indicate that Pu was incorporated in the subsurface in the cases studied. (orig.)

  15. Endonuclease IV (nfo) mutant of Escherichia coli.

    OpenAIRE

    Cunningham, R P; Saporito, S M; Spitzer, S G; Weiss, B

    1986-01-01

    A cloned gene, designated nfo, caused overproduction of an EDTA-resistant endonuclease specific for apurinic-apyrimidinic sites in DNA. The sedimentation coefficient of the enzyme was similar to that of endonuclease IV. An insertion mutation was constructed in vitro and transferred from a plasmid to the Escherichia coli chromosome. nfo mutants had an increased sensitivity to the alkylating agents methyl methanesulfonate and mitomycin C and to the oxidants tert-butyl hydroperoxide and bleomyci...

  16. Examining Computational Assumptions For Godiva IV

    Energy Technology Data Exchange (ETDEWEB)

    Kirkland, Alexander Matthew [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Jaegers, Peter James [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-08-11

    Over the course of summer 2016, the effects of several computational modeling assumptions with respect to the Godiva IV reactor were examined. The majority of these assumptions pertained to modeling errors existing in the control rods and burst rod. The Monte Carlo neutron transport code, MCNP, was used to investigate these modeling changes, primarily by comparing them to that of the original input deck specifications.

  17. Review of the BCI Competition IV

    OpenAIRE

    MichaelTangermann; AdAertsen; NielsBirbaumer; ChristophBraun; ClemensBrunner; RobertLeeb; CarstenMehring; KaiJMiller; GuidoNolte; HubertPreissl; GerwinSchalk; AloisSchlögl; StephanWaldert

    2012-01-01

    The BCI Competition IV stands in the tradition of prior BCI Competitions that aim to provide high quality neuroscientific data for open access to the scientific community. As experienced already in prior competitions not only scientists from the narrow field of BCI compete, but scholars with a broad variety of backgrounds and nationalities. They include high specialists as well as students. The goals of all BCI Competitions have always been to challenge with respect to novel paradigms and co...

  18. Spor Václava IV. s panstvem

    Czech Academy of Sciences Publication Activity Database

    Novotný, Robert

    Praha: Lidové noviny, 2012 - (Šmahel, F.; Bobková, L.; Mašková, P.; Novotný, R.), s. 664-674 ISBN 978-80-7422-093-7 R&D Projects: GA ČR(CZ) GBP405/12/G148 Institutional support: RVO:67985955 Keywords : Wenceslas IV * higher nobility * New Council Subject RIV: AB - History

  19. Dipyridinium tribromidochloridobis(4-chlorophenylstannate(IV

    Directory of Open Access Journals (Sweden)

    Kong Mun Lo

    2009-06-01

    Full Text Available The tin atom in the substituted ammonium stannate(IV, (C5H6N2[SnBr3(C6H4Cl2Cl], lies on a center of symmetry in a distorted octahedral coordination geometry. Each independent halogen site is occupied by bromine and chlorine anions in an approximate 3:1 ratio. The pyridinium cation forms a hydrogen bond to only one of the halogen atoms.

  20. In vitro removal of actinide (IV) ions

    Science.gov (United States)

    Weitl, Frederick L.; Raymond, Kenneth N.

    1982-01-01

    A compound of the formula: ##STR1## wherein X is hydrogen or a conventional electron-withdrawing group, particularly --SO.sub.3 H or a salt thereof; n is 2, 3, or 4; m is 2, 3, or 4; and p is 2 or 3. The present compounds are useful as specific sequestering agents for actinide (IV) ions. Also described is a method for the 2,3-dihydroxybenzamidation of azaalkanes.

  1. United Arab Emirates; 2013 Article IV Consultation

    OpenAIRE

    International Monetary Fund

    2013-01-01

    This staff report on United Arab Emirates 2013 Article IV Consultation highlights economic policies and development. Against a backdrop of political stability, confidence has further increased, tourism has been firm, demand from expatriates from the broader region has increased, and capital inflows have strengthened amid high global liquidity. The real estate sector, which had been impaired since the 2009 crisis, has stabilized in Abu Dhabi and has started to recover in Dubai. Dubai aims to b...

  2. Generation IV nuclear plant design strategies

    International Nuclear Information System (INIS)

    In this presentation Generation IV nuclear reactor design criteria are examined under the light of known nuclear properties of fissile and fertile nuclei. Their conflicting nature is elucidated along with the resulting inevitability of a multitude of designs. The designs selected as candidates for further development are evaluated with respect to their potential to serve the different design criteria, thereby revealing their more difficult aspects of realization and the strong research challenges lying ahead

  3. No-choice ovipositional nonpreference of Bemisia tabaci (Gennadius B biotype on tomato genotypes Não-preferência para oviposição de Bemisia tabaci (Gennadius biótipo B em genótipos de tomateiro em teste sem chance de escolha

    Directory of Open Access Journals (Sweden)

    Maria Auxiliadora de Godoy Oriani

    2011-04-01

    to a high density of type V nonglandular trichomes.O Brasil é um dos maiores produtores mundiais de tomate, porém grande parte da produção é perdida devido ao ataque de Bemisia tabaci (Gennadius biótipo B. Entre as táticas de controle dessa praga num manejo integrado de pragas, pode-se relacionar a resistência de plantas. Avaliou-se a preferência para oviposição de B. tabaci biótipo B por 18 genótipos de tomateiro com diferentes densidades e tipos de tricomas utilizando-se dois métodos e estudou-se a influência dos tricomas nesta preferência, utilizando-se dois métodos para os experimentos de confinamento. Folíolos seccionados do terço superior dos tomateiros (primeiro método e plantas com 30 dias de idade (segundo método foram infestados com moscas-brancas durante 24 h. Para o primeiro experimento, foram realizados testes de correlação linear simples entre o número de insetos e de ovos e o número de tricomas nos tomateiros. O primeiro método foi melhor que o segundo, pois foi mais fácil de ser conduzido e demandou menos tempo para as avaliações, além disso, foi efetivo em discriminar o nível de resistência dos genótipos avaliados. Tricomas glandulares correlacionaram-se negativamente com adultos atraídos e com ovos, e positivamente com adultos capturados. Correlações negativas ocorreram entre o número de tricomas não-glandulares e o número de insetos capturados, e entre o número de tricomas totais e o número de insetos atraídos e capturados. Correlações positivas ocorreram entre o número de tricomas totais e o número de ovos cm-2 e de tricomas não-glandulares e o número de ovos. Ambos os métodos foram eficientes para discriminar os genótipos, principalmente os resistentes, com destaque para LA716, PI134417 e PI134418, que apresentaram altíssima antixenose para oviposição relacionada à presença de tricomas glandulares tipo IV. A preferência para oviposição de B. tabaci pelos genótipos LA1963 e NAV1062 est

  4. Implicaciones didácticas de Geogebra sobre el aprendizaje significativo de los tipos de funciones en estudiantes del último grado de secundaria

    Directory of Open Access Journals (Sweden)

    Edwin David Tamayo Martínez

    2013-10-01

    Full Text Available Este trabajo presenta los resultados de una investigación de carácter cualitativo cuyo propósito fue la evaluación del Geogebra para determinar implicaciones didácticas relacionadas con el uso de este tipo de recurso educativo en la enseñanza y el aprendizaje de las matemáticas. El estudio indagó, partiendo de las percepciones de estudiantes y docente, las debilidades y fortalezas de este recurso y dedujo implicaciones en el aprendizaje significativo. Se realizaron tres talleres para el análisis de los diferentes tipos de funciones con estudiantes del grado 11 del Colegio Colombo Francés del municipio de La Estrella (Antioquia, Colombia; estos talleres fueron objeto de reflexión sobre cuatro aspectos centrales: dificultades más comunes al implementar el recurso; fortalezas que puedan orientar reflexiones didácticas; descripción de las interacciones entre estudiantes y docente que fortalecen la aplicación del Geogebra; y principales necesidades para mejorar las intervenciones en el aula.

  5. Ionizing radiation risk assessment, BEIR IV

    International Nuclear Information System (INIS)

    This report of the Subpanel discusses the potential impact on Federal agencies and indicates individual risk factors that could be used by them in risk assessment. The approach used in this CIRRPC report was to consider the risk factors presented in BEIR IV for each radionuclide (or group radioelements) and to make some judgments regarding their validity and/or the uncertainties involved. The coverage of Radon-222 and its progeny dominated the BEIR IV report and this Subpanel felt is was proper to devote more attention to this radionuclide family. This risk factor presented in BEIR IV for radon is 350 cancer deaths per million person-working level months (WLM) of exposure for a lifetime. There is a range of opinions on the conversion from WLM to absorbed dose. As discussed in the text, the use of the WLM concept makes it difficult or infeasible to compare the risk factor for radon with that of other radionuclides which are based on organ dose. This report also includes a discussion of certain fundamental scientific and operational issues that may have decisive effect upon risk factor selection. These adjunct items are dealt with under separate headings and include discussions of threshold dose considerations, extrapolation to low doses, and age at exposure

  6. Generation-IV Nuclear Energy Systems

    Science.gov (United States)

    McFarlane, Harold

    2008-05-01

    Nuclear power technology has evolved through roughly three generations of system designs: a first generation of prototypes and first-of-a-kind units implemented during the period 1950 to 1970; a second generation of industrial power plants built from 1970 to the turn of the century, most of which are still in operation today; and a third generation of evolutionary advanced reactors which began being built by the turn of the 20^th century, usually called Generation III or III+, which incorporate technical lessons learned through more than 12,000 reactor-years of operation. The Generation IV International Forum (GIF) is a cooperative international endeavor to develop advanced nuclear energy systems in response to the social, environmental and economic requirements of the 21^st century. Six Generation IV systems under development by GIF promise to enhance the future contribution and benefits of nuclear energy. All Generation IV systems aim at performance improvement, new applications of nuclear energy, and/or more sustainable approaches to the management of nuclear materials. High-temperature systems offer the possibility of efficient process heat applications and eventually hydrogen production. Enhanced sustainability is achieved primarily through adoption of a closed fuel cycle with reprocessing and recycling of plutonium, uranium and minor actinides using fast reactors. This approach provides significant reduction in waste generation and uranium resource requirements.

  7. Interação entre genótipos e ambientes em diferentes tipos de híbridos de milho

    Directory of Open Access Journals (Sweden)

    Emiliano Fernandes Nassau Costa

    2010-12-01

    Full Text Available O objetivo deste trabalho foi comparar o desempenho produtivo, a adaptabilidade e a estabilidade de híbridos simples, triplos e duplos de milho originados de um mesmo conjunto de linhagens. Foram avaliados 10 híbridos simples, 30 híbridos triplos e 15 híbridos duplos, além de nove híbridos comerciais utilizados como testemunhas. Utilizou-se o delineamento experimental látice triplo 8x8. Os experimentos foram avaliados em 12 ambientes. O caráter avaliado foi a produtividade de espigas corrigida para 13% de umidade. Realizaram-se as análises de variância individuais e conjunta e verificada a presença da interação genótipos x ambientes, procedeu-se à análise de estabilidade por meio da estimativa da ecovalência e do método AMMI (Additive Main Effects and Multiplicative Interaction. A produtividade média de híbridos simples, triplos e duplos, provenientes de um mesmo conjunto de linhagens, não diferiu estatisticamente, e a diferença de produtividade entre os melhores híbridos simples, duplos e triplos foi baixa (cerca de 10%, o que torna a análise de custo e benefício necessária para a escolha de cultivares para plantio comercial. Os híbridos duplos foram os que menos contribuíram para a interação genótipos x ambientes, seguidos pelos híbridos triplos e os simples. A metodologia utilizada permite identificar híbridos estáveis e produtivos em todos os tipos de milho avaliados

  8. 78 FR 45592 - DeltaPoint Capital IV, LP;

    Science.gov (United States)

    2013-07-29

    ... ADMINISTRATION DeltaPoint Capital IV, LP; Notice Seeking Exemption Under Section 312 of the Small Business Investment Act, Conflicts of Interest Notice is hereby given that DeltaPoint Capital IV, L.P., 45 East Avenue... Business Administration (``SBA'') Rules and Regulations (13 CFR 107.730). DeltaPoint Capital IV,...

  9. 29 CFR 4022.63 - Estimated title IV benefit.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Estimated title IV benefit. 4022.63 Section 4022.63 Labor... PAYABLE IN TERMINATED SINGLE-EMPLOYER PLANS Benefit Reductions in Terminating Plans § 4022.63 Estimated... administrator shall determine each participant's estimated title IV benefit. The estimated title IV...

  10. Situational Lightning Climatologies for Central Florida: Phase IV: Central Florida Flow Regime Based Climatologies of Lightning Probabilities

    Science.gov (United States)

    Bauman, William H., III

    2009-01-01

    The threat of lightning is a daily concern during the warm season in Florida. Research has revealed distinct spatial and temporal distributions of lightning occurrence that are strongly influenced by large-scale atmospheric flow regimes. Previously, the Applied Meteorology Unit (AMU) calculated the gridded lightning climatologies based on seven flow regimes over Florida for 1-, 3- and 6-hr intervals in 5-, 10-, 20-, and 30-NM diameter range rings around the Shuttle Landing Facility (SLF) and eight other airfields in the National Weather Service in Melbourne (NWS MLB) county warning area (CWA). In this update to the work, the AMU recalculated the lightning climatologies for using individual lightning strike data to improve the accuracy of the climatologies. The AMU included all data regardless of flow regime as one of the stratifications, added monthly stratifications, added three years of data to the period of record and used modified flow regimes based work from the AMU's Objective Lightning Probability Forecast Tool, Phase II. The AMU made changes so the 5- and 10-NM radius range rings are consistent with the aviation forecast requirements at NWS MLB, while the 20- and 30-NM radius range rings at the SLF assist the Spaceflight Meteorology Group in making forecasts for weather Flight Rule violations during Shuttle landings. The AMU also updated the graphical user interface with the new data.

  11. Instantánea de los cánceres de cerebro y del sistema nervioso central

    Science.gov (United States)

    Información sobre las tendencias de incidencia, mortalidad y financiamiento del NCI sobre los cánceres de cerebro y del sistema nervioso central; así como ejemplos de actividades del NCI y adelantos en la investigación de estos tipos de cáncer.

  12. Preparation and structural studies on organotin(IV) complexes with flavonoids

    International Nuclear Information System (INIS)

    Fourteen complexes of di-n-butyltin(IV)2+ cations with flavonoid glycosides (rutin, hesperidin, 2',4',3-trihydroxy-5',4-dimetoxychalkone 4-rutinoside) and flavonoid aglycones (quercetin, morin, hesperitin and sorte flavones) were prepared. The composition of the complexes was determined by standard analytical methods. The results showed that complexes containing diorganotin(IV)2+ moiety and the ligand in 1:1, 2:1 or 3:1 ratio are formed. The FTIR spectra were consistent with the presence of Sn-O (phenol or carbohydrate) vibration in the compounds. The structure of the complexes was measured by Moessbauer spectroscopy. Comparison of the experimental quadrupole splitting with those calculated on the basis of partial quadrupole splitting concept revealed that the complexes are of four types: with the central tin atoms surrounded by donor atoms in a purely trigonal-bipyramidal, octahedral+trigonal-bipyramidal, trigonal-bipyramidal+tetrahedral and octahedral+tetrahedral arrangement. This procedure also distinguished between the different structural isomers of both trigonal-bipyramidal and octahedral complexes. Conclusions could therefore be drawn on the factors determining which of the isomers are formed in the systems. The Moessbauer parameters obtained for organotin(IV)-flavonoid complexes were compared with those measured for organotin(IV)-carbohydrate complexes. (author)

  13. Somatoform disorders and rheumatic diseases: from DSM-IV to DSM-V

    Directory of Open Access Journals (Sweden)

    A. Alciati

    2014-06-01

    Full Text Available Medically unexplained symptoms are considered ‘somatoform disorders’ in the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV. The introduction of this nosographic category has been helpful in drawing attention to a previously neglected area, but has not been successful in promoting an understanding of the disorders’ biological basis and treatment implications, probably because of a series of diagnostic shortcomings. The newly proposed DSM-V diagnostic criteria try to overcome the limitations of the DSM-IV definition, which was organised centrally around the concept of medically unexplained symptoms, by emphasising the extent to which a patient’s thoughts, feelings and behaviours concerning their somatic symptoms are disproportionate or excessive. This change is supported by a growing body of evidence showing that psychological and behavioural features play a major role in causing patient disability and maintaining high level of health care use. Pain disorders is the sub-category of DSM-IV somatoform disorders that most closely resembles fibromyalgia. Regardless of the diagnostic changes recently brought about by DSM-V, neuroimaging studies have identified important components of the mental processes associated with a DSM- IV diagnosis of pain disorder.

  14. To centralize or not to centralize?

    OpenAIRE

    Campbell, Andrew; Kunisch, Sven; Müller-Stewens, Günter

    2011-01-01

    The CEO's dilemma-were the gains of centralization worth the pain it could cause?-is a perennial one. Business leaders dating back at least to Alfred Sloan, who laid out GM's influential philosophy of decentralization in a series of memos during the 1920s, have recognized that badly judged centralization can stifle initiative, constrain the ability to tailor products and services locally, and burden business divisions with high costs and poor service.1 Insufficient centralization can deny bus...

  15. Novos tipos de batata doce oriundos de mutação somática

    Directory of Open Access Journals (Sweden)

    A. Pais de Camargo

    1952-12-01

    Full Text Available As mutações somáticas que ocorrem nas variedades econômicas de batata doce podem apresentar características vantajosas, passando a constituir novos tipos comerciais, utilizados com finalidades diversas. No decorrer dos trabalhos em realização na Secção de Raízes e Tubérculos deste Instituto, sôbre vários aspectos agronômicos e sôbre o melhoramento da batata doce, foram observadas seis mutações somáticas, tôdas elas afetando principalmente a coloração das raízes. A descrição dessas mutações e o seu valor econômico são mencionados. Na variedade 98-Castelo, a mutação afetou a côr da periderme que, de roxo, passou para creme, enquanto na variedade 18-Viçosa (Dahomey, a mudança de côr se deu na periderme e córtex que, ao mesmo tempo, de roxo mudaram para roxo-avermelhado e creme, respectivamente. Na variedade 39-Roxa pilosa, a periderme roxo-escura se tornou côr de cobre e o córtex e o cilindro central de roxo-escuro se tornaram creme. Na variedade 104-Peçanha rosa, a alteração ocorreu na periderme, que passou de rosa-pardo a vermelho-arroxeada. No "seedling" 104 S50-6, a periderme roxo-escura se tornou creme, enquanto no "seedling" 113 S50-11 a periderme amarelada mudou para lilás e o córtex e cilindro central, de amarelados, passaram a ter a côr roxa. Chamou-se atenção para a combinação de côres encontrada nesta última mutação, ainda não observada em Campinas. Apenas as duas primeiras mutações foram estudadas quanto à produção. Verificou-se, neste particular, que se assemelham às variedades originais, as quais são das mais recomendáveis para a agricultura de São Paulo. Ambas, porém, apresentam a vantagem de possuir a casca mais clara, o que melhora sua aceitação no mercado.During these last 5 years six somatic mutations were found in commercial varieties of sweet potatoes grown in experimental fields of the Roots and Tubers Dept. of the Insiitvto Agronômico de Campinas. All these

  16. The spectrum of β-thalassemia mutations in Baghdad, Central Iraq.

    Science.gov (United States)

    Al-Allawi, Nasir A S; Al-Mousawi, Bassam M S; Badi, Ameer I A; Jalal, Sana D

    2013-01-01

    While previous studies from Iraq have focused on β-thalassemia (β-thal) mutations in the northern part of the country, inhabited mainly by Kurds, no study of significance has looked at these mutations in central or southern Iraq, which is inhabited by the Arab majority. For the latter purpose this study was initiated and 103 β-thal carriers from Baghdad at the center of the country were investigated using multiplex polymerase chain reaction (PCR) and reverse hybridization followed by sequencing. The results revealed that a total of 17 mutations were implicated, six of which, IVS-I-110 (G>A), IVS-II-1 (G>A), IVS-I-5 (G>C), codons 8/9 (+G), IVS-I-I (G>A) and codon 44 (-C), constituted 78.0% of the mutations characterized. Among the 17 mutations identified, six are reported for the first time from Iraq and include: IVS-I, 25 bp deletion, IVS-II-848 (C>A), -28 (A>C), IVS-I-130 (G>C), IVS-I-128 (T>G) and codons 41/42 (-TTCT). The findings of the current study clearly illustrate the genetic heterogeneity of the population of central Iraq, as demonstrated by the presence of a combination of Mediterranean, Asian Indian, Kurdish, Iranian, Egyptian, Saudi Arabian and Turkish mutations that is reflective of the historical background of this part of the country. PMID:23826747

  17. Structure and luminescence properties of tellurium(IV) complex compounds

    Science.gov (United States)

    Sedakova, T. V.; Mirochnik, A. G.; Karasev, V. E.

    2011-05-01

    Using the tellurium(IV) complex compounds as an example, we study the interrelation between the geometric structure and spectral luminescence properties. We find that, in the series of compounds of Te(IV), which are characterized by the island octahedral coordination of Te(IV) ions, the luminescence intensity depends on the degree of distortion of the Te(IV) coordination polyhedron, the Stokes shift, and the energy of the luminescence transition. We revealed that the considered series of Te(IV) compounds possess reversible thermochromic properties.

  18. Resultados em longo prazo de embolização deendoleaks tipo II

    Directory of Open Access Journals (Sweden)

    Eduardo da Silva Eli

    2016-01-01

    Full Text Available Resumo Contexto Endoleaks tipo II são frequentes após o reparo endovascular de aneurismas de aorta. Objetivo O objetivo deste estudo foi comparar o sucesso da embolização deendoleaks tipo II utilizando diferentes técnicas e materiais. Métodos Entre 2003 e 2015, 31 pacientes foram submetidos a embolização deendoleak tipo II, totalizando 41 procedimentos. Esses procedimentos foram conduzidos por acesso translombar, acesso femoral ou uma combinação de ambos, utilizando Onyx®18, Onyx®34,coils, plugue vascular Amplatzer® e trombina como material emboligênico. Sucesso foi definido como ausência de reintervenção. O teste de qui-quadrado e o teste exato de Fisher foram utilizados para a análise estatística. Resultados O tempo médio entre a correção do aneurisma de aorta e a embolização foi de 14 meses. Quinze (36% das intervenções utilizaram Onyx®18; sete (17% utilizaram coils e Onyx®34; seis (14% utilizaram Onyx®34; quatro (10% utilizaramcoils e Onyx®18; quatro (10% usaram Onyx®18 e Onyx®34; e três (7% usaramcoils e trombina; um (2% usou coils e um (2% usou Amplatzer®. Onze pacientes (35% necessitaram de reintervenção. A taxa de sucesso foi de 71,43% (10 para os pacientes com as artérias lombares como fonte do endoleak, 80% (8 quando a fonte era a artéria mesentérica inferior e 40% (2 quando havia combinação de ambas (p & 0,05. Não houve diferença estatisticamente significativa com relação ao tipo de embolização, material emboligênico e tipo de reparo da aorta para a correção do aneurisma. Conclusões A terapia endovascular de endoleaks tipo II é um desafio, sendo necessária reintervenção em até 36% dos casos. A taxa de sucesso é menor quando o endoleak é nutrido pela combinação das artérias lombares e da artéria mesentérica inferior.

  19. Topological characterisation and identification of critical domains within glucosyltransferase IV (GtrIV of Shigella flexneri

    Directory of Open Access Journals (Sweden)

    Nair Anesh

    2011-12-01

    Full Text Available Abstract Background The three bacteriophage genes gtrA, gtrB and gtr(type are responsible for O-antigen glucosylation in Shigella flexneri. Both gtrA and gtrB have been demonstrated to be highly conserved and interchangeable among serotypes while gtr(type was found to be specific to each serotype, leading to the hypothesis that the Gtr(type proteins are responsible for attaching glucosyl groups to the O-antigen in a site- and serotype- specific manner. Based on the confirmed topologies of GtrI, GtrII and GtrV, such interaction and attachment of the glucosyl groups to the O-antigen has been postulated to occur in the periplasm. Results In this study, the topology of GtrIV was experimentally determined by creating different fusions between GtrIV and a dual-reporter protein, PhoA/LacZ. This study shows that GtrIV consists of 8 transmembrane helices, 2 large periplasmic loops, 2 small cytoplasmic N- and C- terminal ends and a re-entrant loop that occurs between transmembrane helices III and IV. Though this topology differs from that of GtrI, GtrII, GtrV and GtrX, it is very similar to that of GtrIc. Furthermore, both the N-terminal periplasmic and the C-terminal periplasmic loops are important for GtrIV function as shown via a series of loop deletion experiments and the creation of chimeric proteins between GtrIV and its closest structural homologue, GtrIc. Conclusion The current study provides the basis for elucidating the structure and mechanism of action of this important O-antigen modifying glucosyltransferase.

  20. Salga de queijo tipo Minas por impregnação a vácuo Salting of Minas cheese by vacuum impregnation

    Directory of Open Access Journals (Sweden)

    Luciana C. Hofmeister

    2005-09-01

    Full Text Available Estudou-se o uso da impregnação a vácuo (IV para a salga de queijo tipo Minas, utilizando-se uma câmara hermética, na qual amostras de queijos (cilíndricos, com massa de 500g e dimensões de 120mm de raio por 60mm de altura foram imersas em solução de salmoura com 22% em massa de NaCl. Os ensaios foram realizados após a etapa de enformagem e prensagem, para facilitar a reprodutibilidade estrutural dos queijos. Utilizou-se vácuo de 85,3kPa (Pabsoluta =16kPa, aplicado intermitentemente, intercalado com a recuperação da pressão atmosférica na câmara. Após períodos pré-estabelecidos, a câmara foi aberta e os queijos foram pesados e secionados, de modo a permitir a determinação da distribuição de sal no interior dos mesmos pelo método de Mohr. A salga por IV permitiu a obtenção de queijos com 1,6% em massa de sal em 15 minutos, contra 2,5 horas da salga convencional. Além disso, a distribuição de sal nos queijos salgados por IV foi mais homogênea do que nos queijos salgados por imersão em salmoura a pressão atmosférica. Esses resultados indicaram que a salga de queijos tipo Minas por IV pode ser uma boa alternativa de processamento, tanto do ponto de vista econômico como tecnológico.Minas cheese salting by vacuum impregnation was studied using cylindrical cheese samples of about 500 g and 120 ' 60mm (radius ' height, that were immersed in a hermetic chamber with 22g NaCl/100g, where sub-atmospheric pressures were applied. The essays were performed after the press stage, used in this to obtain more compact cheeses and facilitate the reproducibility of an average cheese pore structure. Vacuum intensity of 85.3kPa (absolute pressure of 16kPa was applied intermittently, interleaving with the atmospheric pressure recuperation in the chamber. After pre-determined periods, the chamber was opened and the cheeses were weighed and cut, in order to determine the salt concentration distributions, by means of a modified Mohr

  1. New Materials for NGNP/Gen IV

    Energy Technology Data Exchange (ETDEWEB)

    Robert W. Swindeman; Douglas L. Marriott

    2009-12-18

    The bounding conditions were briefly summarized for the Next Generation Nuclear Plant (NGNP) that is the leading candidate in the Department of Energy Generation IV reactor program. Metallic materials essential to the successful development and proof of concept for the NGNP were identified. The literature bearing on the materials technology for high-temperature gas-cooled reactors was reviewed with emphasis on the needs identified for the NGNP. Several materials were identified for a more thorough study of their databases and behavioral features relative to the requirements ASME Boiler and Pressure Vessel Code, Section III, Division 1, Subsection NH.

  2. General report of Technical Committee IV

    International Nuclear Information System (INIS)

    During the report period, work in section IV of the Committee was continued on the molecular, cellular and organic levels with the aim to elucidate the origin, course and treatment possibility of the syndrome that may occur in the mammalian organism upon acute and chronic ionizing irradiation as a function of the radiation dose received. The investigations dealt a.o. with the effect of O2 in protein radiolysis, recovery processes of the haematopoietic stem cells, delayed effects in the gastrointestical tract subsequent to local irradiation, and combination damage in the lungs and liver of rats upon combined cytostatic and radiation therapy. (orig./HP)

  3. IVS Combination Center at BKG - Recent Activities

    Science.gov (United States)

    Bachmann, S.; Lösler, M.

    2012-12-01

    In addition to the routine rapid combination, the IVS Combination Center at BKG is working on various other projects based on VLBI combination. The generation of a quarterly solution (long term combination of VLBI sessions) is one of the main projects. This solution includes the computation of a VTRF and the analysis of station coordinates and velocities. Mainly the changes in station position and station motion caused by recent significant earthquakes are being investigated. Results of all projects are published on the Combination Center's Web site, including features to perform Web-based data analysis.

  4. The MAX IV storage ring project

    International Nuclear Information System (INIS)

    The design of the MAX IV 3 GeV ultralow-emittance storage ring is presented and the implementation of solutions to the technological challenges imposed by the compact multi-bend achromat lattice are described. The MAX IV facility, currently under construction in Lund, Sweden, features two electron storage rings operated at 3 GeV and 1.5 GeV and optimized for the hard X-ray and soft X-ray/VUV spectral ranges, respectively. A 3 GeV linear accelerator serves as a full-energy injector into both rings as well as a driver for a short-pulse facility, in which undulators produce X-ray pulses as short as 100 fs. The 3 GeV ring employs a multibend achromat (MBA) lattice to achieve, in a relatively short circumference of 528 m, a bare lattice emittance of 0.33 nm rad, which reduces to 0.2 nm rad as insertion devices are added. The engineering implementation of the MBA lattice raises several technological problems. The large number of strong magnets per achromat calls for a compact design featuring small-gap combined-function magnets grouped into cells and sharing a common iron yoke. The small apertures lead to a low-conductance vacuum chamber design that relies on the chamber itself as a distributed copper absorber for the heat deposited by synchrotron radiation, while non-evaporable getter (NEG) coating provides for reduced photodesorption yields and distributed pumping. Finally, a low main frequency (100 MHz) is chosen for the RF system yielding long bunches, which are further elongated by passively operated third-harmonic Landau cavities, thus alleviating collective effects, both coherent (e.g. resistive wall instabilities) and incoherent (intrabeam scattering). In this paper, we focus on the MAX IV 3 GeV ring and present the lattice design as well as the engineering solutions to the challenges inherent to such a design. As the first realisation of a light source based on the MBA concept, the MAX IV 3 GeV ring offers an opportunity for validation of concepts that are

  5. Gen IV Materials Handbook Functionalities and Operation

    Energy Technology Data Exchange (ETDEWEB)

    Ren, Weiju [ORNL

    2009-12-01

    This document is prepared for navigation and operation of the Gen IV Materials Handbook, with architecture description and new user access initiation instructions. Development rationale and history of the Handbook is summarized. The major development aspects, architecture, and design principles of the Handbook are briefly introduced to provide an overview of its past evolution and future prospects. Detailed instructions are given with examples for navigating the constructed Handbook components and using the main functionalities. Procedures are provided in a step-by-step fashion for Data Upload Managers to upload reports and data files, as well as for new users to initiate Handbook access.

  6. New Materials for NGNP/Gen IV

    International Nuclear Information System (INIS)

    The bounding conditions were briefly summarized for the Next Generation Nuclear Plant (NGNP) that is the leading candidate in the Department of Energy Generation IV reactor program. Metallic materials essential to the successful development and proof of concept for the NGNP were identified. The literature bearing on the materials technology for high-temperature gas-cooled reactors was reviewed with emphasis on the needs identified for the NGNP. Several materials were identified for a more thorough study of their databases and behavioral features relative to the requirements ASME Boiler and Pressure Vessel Code, Section III, Division 1, Subsection NH.

  7. Inhibidores de dipeptidil dipeptidasa-IV: de la teoría a la práctica

    Directory of Open Access Journals (Sweden)

    Yessica Agudelo-Zapata

    2015-04-01

    Full Text Available Esta revisión de los inhibidores de dipeptidil peptidasa-IV busca motivar el uso racional de tal grupo farmacológico en la práctica diaria. Este grupo es una nueva opción terapéutica en monoterapia o terapia combinada para el tratamiento de los pacientes con diabetes mellitus tipo 2. En Colombia, se encuentran disponibles: sitagliptina, vildagliptina, saxagliptina y linagliptina. Si bien todas las gliptinas tienen el mismo mecanismo de acción-aumentan la vida media del péptido similar al glucagón-, esta revisión presenta las diferencias entre sus propiedades farmacológicas, eventos adversos y perfil de seguridad. Estos medicamentos son de segunda o tercera línea para el tratamiento oral de los pacientes con diabetes mellitus tipo 2, o primera línea en los pacientes intolerantes a la metformina. Además, algunas de las ventajas que tienen son que: generan menor riesgo de hipoglucemia, tienen efecto neutro sobre el peso, son seguros en adultos mayores, disminuyen la variabilidad de la glucemia y, adicionalmente, se pueden utilizar en la enfermedad renal crónica avanzada, con o sin terapia de reemplazo renal, y en la insuficiencia hepática.

  8. ivähoito lastensuojelun avohuollon tukitoimena : Päivähoidon työntekijöiden kokemuksia

    OpenAIRE

    Vainionkulma, Laura; Karhula, Mari; Suutari, Sari

    2011-01-01

    Tutkimuksen tavoitteena oli selvittää päivähoidon työntekijöiden kokemuksia ja ammatillista osaamista päivähoidosta avohuollon tukitoimena. Lisäksi tutkimuksen avulla pyrittiin saamaan käsitystä siitä, miten hyvin päivähoito lastensuojelun avohuollon tukitoimena vastaa nykypäivänä asiakkaiden tarpeisiin. Tutkimus toteutettiin kvalitatiivisena eli laadullisena tutkimuksena. Tutkimusmenetelmänä käytettiin teemahaastatteluja, joihin osallistui yhteensä kahdeksan päivähoidon työntekijää. Työn...

  9. Novas perspetivas no tratamento farmacológico da diabetes tipo 2

    OpenAIRE

    Fernandes, Bruno Miguel Gomes

    2015-01-01

    Os inibidores dos co-transportadores de sódio e glicose do tipo 2 (SGLT2, sodium glucose co-transporter 2) constituem um novo grupo de fármacos disponível para o tratamento da diabetes tipo 2. Os SGLT2 são os principais transportadores envolvidos na reabsorção renal de glicose no tubo contornado proximal; a sua inibição origina glicosúria, resultando na diminuição dos níveis plasmáticos de glicose de uma forma independente da ação da insulina. Atualmente esta classe é constituída por três fár...

  10. Educación sanitaria en la diabetes mellitus tipo1

    OpenAIRE

    Sanz Nieto, Lucía

    2015-01-01

    Conociendo la prevalencia y las características de la Diabetes Mellitus tipo 1, entre ellas la cronicidad y la afectación a la población infantil, es competencia de la profesión de enfermería actuar en consecuencia mediante el abordaje de la enfermedad a través de la educación para la salud. Para poder desarrollarla correctamente es necesario en primer lugar conocer la información existente sobre la educación diabetológica en los pacientes diabéticos tipo 1 a través de la realización de una r...

  11. Papel da vitamina D na susceptibilidade para a diabetes mellitus tipo 1

    OpenAIRE

    Oliveira, Nuno Miguel Pimenta de

    2010-01-01

    A diabetes mellitus tipo 1 é uma doença crónica auto-imune, caracterizada pela destruição selectiva das células nos ilhéus pancreáticos, resultando numa perda lenta e progressiva da secreção de insulina e para a qual contribuem factores ambientais e factores de predisposição genética. Vários estudos epidemiológicos e experimentais sugerem que a vitamina D tem um efeito protector contra o desenvolvimento da diabetes mellitus tipo 1, através da modulação da resposta do siste...

  12. GENERACIÓN DE ESTADOS EXTENDIDOS EN MODELOS DESORDENADOS CON IMPUREZAS TIPO DELTA

    Directory of Open Access Journals (Sweden)

    María Onell

    2002-12-01

    Full Text Available En este trabajo se estudia un sistema unidimensional con impurezas tipo delta con amplitudes al azar. Dicho sistema se diluye introduciendo, alternadamente, impurezas tipo delta con amplitud constante. Mediante la técnica de decimación se demuestra la existencia de dos conjuntos infinitos de estados deslocalizados. La comprensión de los mecanismos que permiten la transición metal-aislador, abre la posibilidad de llegar a fabricar dispositivos electrónicos donde dicha transición es relevante.In this work we study a 1D system with delta type impurities with random amplitudes. This system is diluted introducing, in alternating way, delta type impurities with constant amplitudes. Using the decimation technique, we demonstrate the existence of two infinite sets of delocalized states. The understanding of the mechanism, which allows the metal-insulator transition, opens the possibility of building electronic devices where that transition is relevant.

  13. Mėsinio tipo galvijų tvartų mikroklimato įvertinimas

    OpenAIRE

    Ribikauskas, Vytautas; Vaičionis, Gediminas

    2004-01-01

    2003 metais atlikti bandymai, kurių metu buvo tiriami kai kurie mėsinio tipo galvijų tvartų mikroklimato parametrai – patalpų oro temperatūra, santykinis drėgnis, judėjimo greitis. Taip pat buvo nustatoma amoniako ir anglies dvideginio koncentracija, bendras bakterijų skaičius, E. coli grupės bakterijų skaičius, dulkių ir pelėsių koncentracija fermų ore. Palyginimui tokie pat tyrimai atlikti atviro tipo melžiamų karvių tvarte. Tyrimais nustatyta, kad mėsinių galvijų tvartų ore buvo nevienodas...

  14. Casa Protótipo: afirmação de um caminho experimental em arquitectura

    OpenAIRE

    Maria Tavares

    2010-01-01

    Uma Casa Protótipo foi construída em Portugal em 1957, com a responsabilidade de Nuno Teotónio Pereira e Bartolomeu da Costa Cabral. Decorrentes da história da arquitectura moderna, os autores propõem um novo conceito de modernidade, compondo uma espécie de ajuste/adaptação a um novo contexto, a um novo imaginário: o da passagem de um conceito de família, para um de grupo doméstico, tendo um curioso impacto na disposição dos espaços da casa.A Casa Protótipo acolhe uma série de experimentações...

  15. Distribución de marcadores discursivos en distintos tipos de discurso

    Directory of Open Access Journals (Sweden)

    María Teresa Poblete Bennett

    1999-09-01

    Full Text Available Partiendo de supuestos de Bolívar (1995, se establece que la entrevista semiformal es una clase de texto donde se dan distintos tipos de discurso, y se comprueba la ocurrencia de tres clases de marcadores discursivo-conversacionales en distintos tipos de discurso: expositivo, narrativo y argumentativo. El corpus analizado se obtuvo de dieciocho entrevistas, nueve hombres y nueve mujeres, divididas en tres estratos sociales y tres grupos etarios que conforman una muestra representativa de los hablantes de Valdivia urbano (Cepeda et al., 1988:56-66. Los resultados indican, por una parte, que la distribución de los relacionantes supraoracionales está condicionada por el tipo de discurso donde ocurren y al cual le contribuyen en el logro de su objetivo comunicativo básico. Por otra parte, la distribución de los marcadores interactivos y de modalidad covaría más con las variables sociales que con el tipo de discurso en que ocurren. (Bolívar's (1995 assumptions concerning kinds of texts and types of discourse have been taken into account for the study of the distribution of three groups of discourse markers in three types of discourse: expository, narrative and argumentative.The data was taken from 18 semiformal interviews to nine women and nine men divided according to social strata, sex and age who belong to a representative sample of Valdivian speakers (Cepeda, et al., 1988: 55-66. The results show, on the one hand, that the distribution of suprasentential connectors is conditioned by the type of discourse where they occur, and that this distribution contributes to the achievement of the communicative objective of each type of discourse. On the other hand, the distribution of interactive and modality markers varies according to social variables rather than the type of discourse where they occur.

  16. Tipos de tareas para desarrollar el conocimiento didáctico del contenido

    OpenAIRE

    Blanco, Lorenzo Jesús

    1997-01-01

    Aceptando que el Conocimiento Didáctico del Contenido debe ser el conocimiento base en la formación del profesorado, y que el conocimiento generado depende, entre otras cosas, del tipo de tarea propuesto, hemos establecido tres niveles de tareas que ayudarían a generar diferentes componentes del Conocimiento que los profesores necesitarían para aprender a enseñar matemáticas.

  17. Protótipo do primeiro interferômetro brasileiro - BDA

    Science.gov (United States)

    Cecatto, J. R.; Fernandes, F. C. R.; Neri, J. A. C. F.; Bethi, N.; Felipini, N. S.; Madsen, F. R. H.; Andrade, M. C.; Soares, A. C.; Alonso, E. M. B., Sawant, H. S.

    2004-04-01

    A interferometria é uma poderosa ferramenta usada para investigar estruturas espaciais de fontes astrofísicas fornecendo uma riqueza de detalhes inatingível pelas técnicas convencionais de imageamento. Em particular, a interferometria com ondas de rádio abre o horizonte de conhecimento do Universo nesta ampla banda do espectro eletromagnético, que vai de cerca de 20 kHz até centenas de GHz já próximo ao infravermelho, e que está acessível a partir de instrumentos instalados em solo. Neste trabalho, apresentamos o interferômetro designado por Arranjo Decimétrico Brasileiro (BDA). Trata-se do primeiro interferômetro a ser desenvolvido no Brasil e América Latina que já está em operação na fase de protótipo. Apresentamos o desenvolvimento realizado até o momento, o sítio de instalação do instrumento, o protótipo e os principais resultados dos testes de sua operação, as perspectivas futuras e a ciência a ser desenvolvida com o instrumento nas fases II e III. Neste trabalho é dada ênfase ao desenvolvimento, testes de operação e principais resultados do protótipo. É discutida brevemente a ciência que pode ser feita com o instrumento. Tanto os detalhes técnicos quanto os principais parâmetros estimados para o instrumento nas próximas fases de desenvolvimento e o desempenho do protótipo serão publicados em breve.

  18. Poder y negociación del conflicto en diferentes tipos de matrimonio

    OpenAIRE

    Mirta Margarita Flores Galaz; Rolando Díaz Loving; Sofía Rivera Aragón; Ana Luisa Chi Cervera

    2005-01-01

    En el presente estudio se analizan los estilos de poder y los estilos de negociación del conflicto utilizados por parejas yucatecas, así como la relación entre cada uno de los factores de los estilos de poder y de negociación por tipo de matrimonio, de acuerdo a los ingresos individuales de las esposas y en nivel de trabajo.

  19. Un analisis de los desequilibrios del tipo de cambio real argentino bajo cambios de regimen

    OpenAIRE

    Daniel Aromi; Marcos Dal Bianco

    2014-01-01

    En este trabajo estudiamos para Argentina la presencia de diferentes regimenes en la media y la varianza de los desequilibrios del TCR respecto de su equilibrio, utilizando un modelo de cambios de regimen tipo Markov con probabilidades de transicion variables. Nuestras estimaciones reconocen dos estados persistentes en la media de los desequilibrios del TCR argentino asociadas a apreciaciones y depreciaciones reales, siendo las depreciaciones reales mas persistentes que las apreciaciones. Por...

  20. Artículos científicos: tipos, secciones y publicación

    OpenAIRE

    Reverter Masià, Joaquín; Hernández González, Vicenç

    2012-01-01

    Las revistas científicas han sido el principal vehículo de transmisión de conocimientos entre los investigadores y la comunidad científica. Investigar y publicar un artículo científico son dos actividades íntimamente relacionadas. Saber los tipos de publicación existentes, las secciones de un artículo y donde publicarlo es el objetivo de este trabajo.

  1. Dicationic halo complexes of uranium(IV)

    International Nuclear Information System (INIS)

    An investigation of the interaction of the UX2(C104)2 (X = Cl- and Br-) systems, with selected neutral oxygen donor ligands was undertaken. The study involved the preparation and characterization of the solid state complexes obtained on the reaction of UX2(Cl04)2 with the chosen ligands. Higher coordinated complexes with bidentate phosphine oxide and sulphoxide ligands were also isolated. The reaction of UX2(Cl04)4 with the chosen ligands was also studied in non-aqueous solution spectrophotometrically and conductometrically. Attempts were made to identify reactions that take place in solution in titrations of these ligands with the UX2(Cl04)2 system. This proved to be successful since a large number of species formed in solution in these titrations were identified by a comparison of their electronic spectra in solution with that of the corresponding spectra in the solid state. Complexes of the type U(Cl04)4.nL (n = 4 and 5) were isolated and studied. Interesting data obtained were the significant coordination of perchlorate to uranium (IV) in one of these complexes. This proved to be important since perchlorate coordination towards uranium (IV) were not reported previously

  2. ARIES-IV Nested Shell Blanket Design

    International Nuclear Information System (INIS)

    The ARIES-IV Nested Shell Blanket (NSB) Design is an alternate blanket concept of the ARIES-IV low activation helium-cooled reactor design. The reference design has the coolant routed in the poloidal direction and the inlet and outlet plena are located at the top and bottom of the torus. The NSB design has the high velocity coolant routed in the toroidal direction and the plena are located behind the blanket. This is of significance since the selected structural material is SiC-composite. The NSB is designed to have key high performance components with characteristic dimensions of no larger than 2 m. These components can be brazed to form the blanket module. For the diverter design, we eliminated the use of W as the divertor coating material by relying on the successful development of the gaseous divertor concept. The neutronics and thermal-hydraulic performance of both blanket concepts are similar. The selected blanket and divertor configurations can also meet all the projected structural, neutronics and thermal-hydraulics design limits and requirements. With the selected blanket and divertor materials, the design has a level of safety assurance rate of I (LSA-1), which indicates an inherently safe design

  3. Styrene Aziridination by Iron(IV) Nitrides.

    Science.gov (United States)

    Muñoz, Salvador B; Lee, Wei-Tsung; Dickie, Diane A; Scepaniak, Jeremiah J; Subedi, Deepak; Pink, Maren; Johnson, Michael D; Smith, Jeremy M

    2015-09-01

    Thermolysis of the iron(IV) nitride complex [PhB(tBuIm)3Fe≡N] with styrene leads to formation of the high-spin iron(II) aziridino complex [PhB(tBuIm)3Fe-N(CH2CHPh)]. Similar aziridination occurs with both electron-rich and electron-poor styrenes, while bulky styrenes hinder the reaction. The aziridino complex [PhB(tBuIm)3Fe-N(CH2CHPh)] acts as a nitride synthon, reacting with electron-poor styrenes to generate their corresponding aziridino complexes, that is, aziridine cross-metathesis. Reaction of [PhB(tBuIm)3Fe-N(CH2CHPh)] with Me3SiCl releases the N-functionalized aziridine Me3SiN(CH2CHPh) while simultaneously generating [PhB(tBuIm)3FeCl]. This closes a synthetic cycle for styrene azirdination by a nitride complex. While the less hindered iron(IV) nitride complex [PhB(MesIm)3Fe≡N] reacts with styrenes below room temperature, only bulky styrenes lead to tractable aziridino products. PMID:26179563

  4. Determinantes del tipo de cambio real en Colombia. Un modelo neokeynesiano

    Directory of Open Access Journals (Sweden)

    Moreno Rivas, Álvaro Martín

    2002-12-01

    Full Text Available Este artículo presenta un modelo de tipo de cambio real siguiendo los desarrollos de la escuela neokeynesiana. Se estima econométricamente de acuerdo con la metodología de la escuela inglesa de econometría. El modelo empírico incorpora una dinámica interesante y respeta las restricciones de equilibrio de largo plazo entre el tipo de cambio real y los fundamentales macroeconómicos. Se encuentra que el ritmo de apreciación o depreciación del tipo de cambio real está determinado por los cambios en los términos de intercambio, la apertura de la economía, los flujos de capitales y la aceleración de la devaluación nominal. El incremento del gasto público no es significativo a los niveles convencionales de confianza estadística. Finalmente se evalúa si la devaluación cumple con los requisitos de exogeneidad débil, exogeneidad fuerte y superexogeneidad.

  5. Tipos de Ativismo Digital e Ativismo Preguiçoso no Mapa Cultural

    Directory of Open Access Journals (Sweden)

    Gabriela Bezerra Lima

    2012-08-01

    Full Text Available Este artigo se propõe a elencar os tipos de ativismo digital desenvolvidos por instituições e indivíduos e que estimulam o compartilhamento de suas mensagens nas redes sociais digitais. A partir da classificação dos tipos de ativismo digital (VEGH, 2003, propomos uma subclassificação do ativismo de ‘organização e mobilização’ e das ações de “ativismo preguiçoso” (MOROZOV, 2010 dos internautas. Para exemplificar os tipos de ativismo digital, este artigo observa as ações desenvolvidas na internet pela Fundação SOS Mata Atlântica. Nosso objetivo é analisar como os contratos de comunicação (CHARAUDEAU, 2006 de ativismo digital são percebidos e quais são seus níveis de contestação ao status quo no Mapa Cultural (DOUGLAS, 1998.

  6. Rendimiento y características morfológicas relacionadas con tipo de planta erecta en frijol para riego

    OpenAIRE

    Rafael A. Salinas Pérez; Jorge A. Acosta Gallegos; Ernesto López Salinas; Ciria Alicia Torres Estrada; Francisco J. Ibarra Pérez; Rubén Félix Gastelum

    2008-01-01

    Para realizar la cosecha directa de frijol (Phaseolus vulgaris L.) se requieren plantas con crecimiento erecto. Durante el otoño-invierno 2004 - 2005 se evaluaron 64 genotipos de cinco tipos de frijol: Azufrado, Pinto, Flor de Mayo, Flor de Junio y Negro. Los genotipos fueron de hábito determinado (tipo I) e indeterminado (tipos II y III) y se establecieron bajo riego en tres localidades: Los Mochis, Sinaloa; Celaya, Guanajuato y Cotaxtla, Veracruz, México. Se utilizó un diseño látic...

  7. Adaptabilidade, estabilidade e resistência a patógenos em genótipos de feijoeiro

    OpenAIRE

    Cleber Vinicius Giaretta Azevedo; Tamires Ribeiro; Daiana Alves da Silva; Sérgio Augusto Morais Carbonell; Alisson Fernando Chiorato

    2015-01-01

    Resumo:O objetivo deste trabalho foi avaliar a resistência de genótipos de feijoeiro aos principais patógenos da cultura, bem como a adaptabilidade e a estabilidade de produção de grãos desses genótipos. Avaliaram-se 26 genótipos de feijoeiro quanto à resistência a Colletotrichum lindemuthianum, Fusarium oxysporum f. sp. phaseolie Xanthomonas axonopodis pv. phaseoli, por meio de inoculação, em laboratório, e em 19 ensaios de valor de cultivo e uso (VCU), em diferentes locais do Estado de São ...

  8. Gestión del riesgo de tipo de cambio: caso de la inversión en bolsa

    OpenAIRE

    Munteanu, Mariana

    2014-01-01

    RESUMEN: El análisis y la gestión del riesgo de tipo de cambio es un aspecto muy importante a la hora de realizar operaciones en el exterior. Por ello, en el trabajo que se presenta a continuación estudiaremos desde un punto de vista teórico la evolución del sistema monetario internacional, así como la definición del tipo de cambio y del riesgo del tipo de cambio, englobados dentro del mercado de divisas. Además, propondremos alternativas para la cobertura de dicho riesgo: el forward y los co...

  9. Dal modello al tipo: i palazzi "italiani" di Potsdam/Vom Modell zum Typus: die "italisenische" Palazzi in Potsdam

    OpenAIRE

    Malcovati, Silvia

    2011-01-01

    (...). Il modello inteso secondo la esecuzione pratica dell'arte, è un oggetto che si deve ripeter tal qual'è: il tipo è, per lo contrario, un oggetto, secondo il quale ognuno può concepire delle opere che non si rassomiglieranno punto fra loro. Tutto è preciso e dato nel modello, tutto è più o men vago nel tipo. La definizione di "tipo" fornita da Quatremère de Quincy nel 1832 rappresenta l'epilogo di quella che si potrebbe definire la questione dell'imitazione nell'architettura tra Settecen...

  10. Reduction of plutonium(IV) using photochemically generated uranium(IV)

    International Nuclear Information System (INIS)

    The reduction of Pu(IV) using photochemically generated U(IV) has been evaluated as a procedure for possible inclusion in the Savannah River Plant's nuclear fuel reprocessing facility. The ''Purex 2nd Uranium Cycle'' with feed conditions of 400 g/L U, 1 M HNO3, and 10-8 to 10-6 M Pu was identified previously as the most promising stage for application of a photochemical method. Laboratory tests were conducted under similar conditions to determine if the plutonium could be successfully reduced and separated in a two-phase flowing system. The laboratory scale tests, which used primarily a 0.01 M butanol/0.01 M hydrazine reductant combination, demonstrated that reductive stripping of Pu(IV) using photochemically generated U(IV) is a practical method for removing plutonium from the organic phase. The kinetics of the reductive stripping procedure were found to be determined by the mixing rates of the organic and aqueous phases in this simple laboratory-scale system

  11. Central Neuropathic Pain Syndromes.

    Science.gov (United States)

    Watson, James C; Sandroni, Paola

    2016-03-01

    Chronic pain is common in patients with neurologic complications of a central nervous system insult such as stroke. The pain is most commonly musculoskeletal or related to obligatory overuse of neurologically unaffected limbs. However, neuropathic pain can result directly from the central nervous system injury. Impaired sensory discrimination can make it challenging to differentiate central neuropathic pain from other pain types or spasticity. Central neuropathic pain may also begin months to years after the injury, further obscuring recognition of its association with a past neurologic injury. This review focuses on unique clinical features that help distinguish central neuropathic pain. The most common clinical central pain syndromes-central poststroke pain, multiple sclerosis-related pain, and spinal cord injury-related pain-are reviewed in detail. Recent progress in understanding of the pathogenesis of central neuropathic pain is reviewed, and pharmacological, surgical, and neuromodulatory treatments of this notoriously difficult to treat pain syndrome are discussed. PMID:26944242

  12. NIDDK Central Repository

    Data.gov (United States)

    U.S. Department of Health & Human Services — The NIDDK Central Repository stores biosamples, genetic and other data collected in designated NIDDK-funded clinical studies. The purpose of the NIDDK Central...

  13. Generation IV and the ELSY Project

    International Nuclear Information System (INIS)

    This is a PowerPoint presentation addressing the subject of Generation IV reactors and the ELSY Project. A short sketch of the evolution of nuclear power is presented beginning from 1950 with early reactors, through current commercial reactors and continuing with projection of advanced reactors and future systems till 2090. Arguments for Generation IV are based on energy resource availability, climate change, air quality, and energy security, which all suggest an important role for nuclear power in future energy supplies. While the current Generation II and III nuclear power plant designs provide a secure and low-cost electricity supply in many markets, further advances in nuclear energy system design can broaden the opportunities for the use of nuclear energy. To explore these opportunities, the U.S. Department of Energy's Office of Nuclear Energy, Science and Technology has engaged governments, industry, and the research community worldwide in a wide ranging discussion on the development of next generation nuclear energy systems known as Generation IV. As basic criteria of selection, focussed are: Sustainability, Economics, Safety and Reliability, Proliferation Resistance and Physical Protection. In January 2000 the Generation IV International Forum (GIF) was established to investigate innovative nuclear energy system concepts for meeting future energy challenges. Purpose of GIF is to coordinate international research and development on promising new nuclear energy systems for meeting future energy challenges. With international collaboration, approximately 100 system concepts were analyzed and evaluated for their potential to meet the goals of the Generation IV program. The selection of systems for cooperative development by GIF was based on the evaluations of each system's ability to fulfill targeted applications, deployment readiness, and development cost. Generation IV Road Map published by GIF in December 2002, selected the following six systems and

  14. Central and peripheral demyelination

    OpenAIRE

    Man Mohan Mehndiratta; Natasha Singh Gulati

    2014-01-01

    Several conditions cause damage to the inherently normal myelin of central nervous system, perepheral nervous system or both central and perepheral nervous system and hence termed as central demyelinating diseases, perepheral demyelinating diseases and combined central and perepheral demyelinating diseases respectively. Here we analysed and foccused on the etiology, prevalance, incidence and age of these demyelinating disorders. Clinical attention and various diagnostic tests are needed to ad...

  15. Risco de tração excessiva nas lesões tipo distração-flexão da coluna cervical baixa Risk of excessive traction on distraction-flexion-type injuries of the low cervical spine

    Directory of Open Access Journals (Sweden)

    Tarcísio Eloy Pessoa de Barros Filho

    2006-01-01

    Full Text Available O estudo em questão visa avaliar a relação entre risco e benefício do uso de tração com halo craniano como alternativa para estabilização nas fraturas-luxações por mecanismo de distração-flexão tipo IV de Allen e Ferguson, considerando a natureza da lesão, seu extenso dano ligamentar e o risco de apresentar distração excessiva e conseqüente lesão da medula espinhal. Para tanto, realizamos uma análise retrospectiva no IOT-HC-FMUSP envolvendo um período de 10 anos, quando 34 casos foram diagnosticados como fratura-luxação por distração-flexão da coluna cervical baixa, sendo 12 deles do tipo IV. Todos foram submetidos à tração esquelética com halo craniano num momento inicial. Durante o controle radiográfico seqüencial, observou-se distração excessiva em sete casos, mesmo com baixo peso inicial (4 kg. Em dois pacientes houve surgimento de nistagmo. Em todos os casos a tração foi retirada e seguiu-se normalização do quadro clínico.This study aims to evaluate the risk/ benefit ratio in the use of traction with cranial halo as an alternative to stabilize fractures-dislocations by Allen & Ferguson's type IV- distraction-flexion mechanism, considering the nature of the injury, its extensive ligament damage and the risk of presenting excessive distraction and resultant spinal cord injury. Thus, we performed a retrospective analysis at IOT-HC-FMUSP comprising a period of 10 years, when 34 cases were diagnosed as fractures-dislocations due to distraction-flexion of the low cervical spine, of which 12 were IV-type. All individuals have been submitted to skeletal traction with cranial halo at an early phase. During sequential X-ray management, an excessive distraction was seen in seven cases, even with initial light weight (4 kg. In two patients, the onset of nistagmus was seen. In all cases, traction was removed, which was followed by stabilization of the clinical picture.

  16. Guía técnica de construcción y funcionamiento de secadoras solares tipo domo

    Directory of Open Access Journals (Sweden)

    Delmar Cruz

    2011-11-01

    Full Text Available El articulo “Secadoras solares tipo domo para café pergamino. La experiencia en Huehuetenengo, Guatemala C.A.” es una de las publicaciones técnicas elaborado por el Programa Café y Caffè con el objetivo de beneficiar a los técnicos, los productores de café de calidad y los operadores del sector del café. El Programa Red Regional para el apoyo a las Asociaciones de pequeños productores de café de la América Central y Caribe implica seis Países: Guatemala, República Dominicana, El Salvador, Honduras, Costa Rica y Nicaragua. Este Programa tiene por objetivo mejorar la calidad de vida de los pequeños productores de café de las comunidades rurales de Montaña y hacer sostenible el cultivo de café de calidad. El Programa cuenta con la financiación del gobierno de Italia a través de la Dirección General para la Cooperación al Desarrollo del Ministerio de Relaciones Exteriores y del “Common Fund for Commodities” (CFC, que designa como entitad para la supervisión técnica la “International Coffee Organization” (ICO. El Istituto Agronomico per l’Oltremare de Florencia (IAO es la institución principal responsable de la ejecución y la coordinación de las actividades que se realizan en colaboración con la Fundación Slow Food para la Biodiversidad e la Ong Italiana Ucodep.

  17. SOLAR TRANSITION REGION LINES OBSERVED BY THE INTERFACE REGION IMAGING SPECTROGRAPH: DIAGNOSTICS FOR THE O IV AND Si IV LINES

    International Nuclear Information System (INIS)

    The formation of the transition region O IV and Si IV lines observable by the Interface Region Imaging Spectrograph (IRIS) is investigated for both Maxwellian and non-Maxwellian conditions characterized by a κ-distribution exhibiting a high-energy tail. The Si IV lines are formed at lower temperatures than the O IV lines for all κ. In non-Maxwellian situations with lower κ, the contribution functions are shifted to lower temperatures. Combined with the slope of the differential emission measure, it is possible for the Si IV lines to be formed at very different regions of the solar transition region than the O IV lines; possibly close to the solar chromosphere. Such situations might be discernible by IRIS. It is found that photoexcitation can be important for the Si IV lines, but is negligible for the O IV lines. The usefulness of the O IV ratios for density diagnostics independently of κ is investigated and it is found that the O IV 1404.78 Å/1399.77 Å ratio provides a good density diagnostics except for very low T combined with extreme non-Maxwellian situations

  18. Magnetic Th(IV)-ion imprinted polymers with salophen schiff base for separation and recognition of Th(IV)

    International Nuclear Information System (INIS)

    A new complex of N,N'-bis(3-allyl salicylidene)o-phenylenediamine and thorium(IV) (Th(IV)) was synthesized and used as the functional monomer for a novel Th(IV) magnetic ion-imprinted polymer; this polymer was synthesized using a surface imprinting technique that included the modified magnetic Fe3O4 particle and used tetraethyl orthosilicate, 3-Aminopropyltriethoxysilane and maleic anhydride in the process. The magnetic polymer was characterized using FT-IR, and powder- and single crystal-XRD. The behavior of Th(IV) was investigated using batch experiments. At pH 4.5, the uptake capacity of this adsorbent and that of the non-imprinted polymer was 42.54 and 14.10 mg g-1, respectively, and the relative selectivity coefficient values of the synthesized adsorbent for Th(IV)/La(III), Th(IV)/Ce(III), Th(IV)/Nd(III), and Th(IV)/U(VI) were 82.2, 93.1, 21.0 and 62.4 times greater than that of the non-imprinted matrix, respectively. In addition, the Th(IV) adsorption process using Fe3O4aSiO2-IIP follows pseudo-second-order reaction kinetics and the Langmuir adsorption isotherm. The thermodynamic parameters also suggest that the adsorption of Th(IV) onto Fe3O4aSiO2-IIPs was a spontaneous and endothermic process. (author)

  19. Cranial nerves III, IV and VI

    International Nuclear Information System (INIS)

    Because of advances in CT and MR imaging, accurate identification and evaluation of cranial nerve lesions is now possible. Cranial nerves III, IV, and VI, providing motor and sensory control of the eye, can be evaluated as a unit. In this paper, the authors present an overview of the anatomy and pathology of these cranial nerves. We first illustrate their normal anatomic pathways from the brain stem to the orbit. This is followed by clinical examples of patients with a variety of isolated and complex palsies of these three cranial nerves. This is accomplished by inclusion of ocular photographs, correlative imaging studies, and the use of diagrams. Knowledge of the gross and imaging anatomy and the ophthalmologic manifestations of pathology affecting these three cranial nerves permits a tailored approach to their evaluation

  20. Ultrathin magnetic structures IV applications of nanomagnetism

    CERN Document Server

    Heinrich, Bretislav

    2005-01-01

    The ability to understand and control the unique properties of interfaces has created an entirely new field of magnetism which already has a profound impact in technology and is providing the basis for a revolution in electronics. The last decade has seen dramatic progress in the development of magnetic devices for information technology but also in the basic understanding of the physics of magnetic nanostructures. Volume III describes thin film magnetic properties and methods for characterising thin film structure topics that underpin the present ''spintronics'' revolution in which devices are based on combined magnetic materials and semiconductors. The present volume (IV) deals with the fundamentals of spintronics: magnetoelectronic materials, spin injection and detection, micromagnetics and the development of magnetic random access memory based on GMR and tunnel junction devices. Together these books provide readers with a comprehensive account of an exciting and rapidly developing field. The treatment is ...

  1. Bis(cyclohexylammonium tetrachlorido(oxalatostannate(IV

    Directory of Open Access Journals (Sweden)

    Hélène Cattey

    2013-08-01

    Full Text Available The title salt, (C6H14N2[Sn(C2O4Cl4], was obtained as a by-product from the reaction between 2C6H14N+·C2O42−·1.5H2O and SnCl2·2H2O. The cyclohexylammonium cation has a chair conformation. The complex anion consists of an oxalate anion chelating the SnCl4 moiety, resulting in a distorted octahedral coordination sphere of the SnIV atom with the O atoms in equatorial cis positions. In the crystal, cations and anions are linked through N—H...O and N—H...Cl interactions into a layered arrangement parallel to (100.

  2. Ratchet model for type IV pilus retraction

    Science.gov (United States)

    Lindén, Martin; Tuohimaa, Tomi; Jonsson, Ann-Beth; Wallin, Mats

    2004-03-01

    Type IV pilus rectraction is required for twitching motility in a wide range of bacteriae, including Neisseria gonorrhoeae, Myxococcus xanthus and Pseudomonas aeruginosa. The mechanism of retraction is believed to be filament disassembly mediated by PilT, a member of the AAA family of motor proteins. Recent laser tweezer measurements of the force-velocity relation of PilT in N. gonorrhoeae, reveal that single PilT complexes generate forces of over 100 pN. We assume that PilT forms a cyclic ATPase surrounding the base of the pilus and formulate a model of retraction in terms of coupled flashing ratchets. We obtain a force-velocity relation by numerical simulation of the model which is in qualitative agreement with the experimental results.

  3. US Nuclear Regulatory Commission region IV

    International Nuclear Information System (INIS)

    The NRC has established a policy to provide for the timely through and systematic inspection of significant operational events at nuclear power plants. This includes the use of an Augmented Inspection Team to determine the causes, conditions, and circumstances relevant to an event and to communicate its findings and conclusions to NRC management. In accordance with NRC Inspection Manual Chapter 0325. The Region IV Regional Administrator dispatched an Augmented Inspection Team to the Wolf Creek Nuclear Generating Station to review the circumstances surrounding a manual reactor trip on January 30, 1996, with the failure of five control rods to fully insert into the core, a failure of the turbine-driven auxiliary feedwater pump, and the subsequent loss of one train of the essential service water system

  4. KENO-IV code benchmark calculation, (6)

    International Nuclear Information System (INIS)

    A series of benchmark tests has been undertaken in JAERI in order to examine the capability of JAERI's criticality safety evaluation system consisting of the Monte Carlo calculation code KENO-IV and the newly developed multigroup constants library MGCL. The present report describes the results of a benchmark test using criticality experiments about Plutonium fuel in various shape. In all, 33 cases of experiments have been calculated for Pu(NO3)4 aqueous solution, Pu metal or PuO2-polystyrene compact in various shape (sphere, cylinder, rectangular parallelepiped). The effective multiplication factors calculated for the 33 cases distribute widely between 0.955 and 1.045 due to wide range of system variables. (author)

  5. Prognostic factors in Hodgkin's disease stage IV

    DEFF Research Database (Denmark)

    Specht, L; Nissen, N I

    1988-01-01

    blood values, together with exploratory laparotomy and treatment were examined in multivariate analyses. With regard to disease-free survival, the only factors of independent prognostic significance were sex and lymphocytopenia. With regard to overall survival the factors of independent significance......104 patients with previously untreated Hodgkin's disease stage IV were examined and treated at the Finsen Institute between 1969 and 1983. 99 patients were treated with combination chemotherapy (MOPP or equivalent regiments) with or without additional irradiation of some involved areas. Prognostic...... factors including age, sex, peripheral plus intrathoracic nodal tumour burden, intraabdominal nodal tumour burden, B-symptoms, histologic subtype, number of involved nodal regions, mediastinal involvement, number of involved extranodal sites, type of extranodal involvement, ESR, and haematologic and other...

  6. Carpentier, la otra novela (cap. IV

    Directory of Open Access Journals (Sweden)

    Urbano Martínez Carmenate

    2014-07-01

    Full Text Available El presente ensayo está extraído de la obra inédita de Urbano Martínez Carmenate, Carpentier, la otra novela (cap. IV. Ofrece una mirada sobre los primeros años de la trayectoria profesional de Alejo Carpentier. Se muestra cómo, durante la década de 1920, se inicia como periodista y cronista teatral. A la vez, comienzan sus conexiones con el Grupo Minorista, que desempeña un papel destacado en la etapa republicana en Cuba. También se contempla su viaje a México en 1926, que constituye su primer contacto directo con la naturaleza y la cultura americanas.

  7. Carpentier, la otra novela (cap. IV

    Directory of Open Access Journals (Sweden)

    Urbano Martínez Carmenate

    2014-06-01

    Full Text Available El presente ensayo está extraído de la obra inédita de Urbano Martínez Carmenate, Carpentier, la otra novela (cap. IV. Ofrece una mirada sobre los primeros años de la trayectoria profesional de Alejo Carpentier. Se muestra cómo, durante la década de 1920, se inicia como periodista y cronista teatral. A la vez, comienzan sus conexiones con el Grupo Minorista, que desempeña un papel destacado en la etapa republicana en Cuba. También se contempla su viaje a México en 1926, que constituye su primer contacto directo con la naturaleza y la cultura americanas. ________________________________________________________________________________________ Carpentier, la otra novela (4th Chap. Abstract: The present essay is an extract from Urbano Martínez Carmenate´s unpublished work, Carpentier, la otra novela (4th Chap., which provides a deep gaze over Carpentier’s first years of professional career. This essay also shows how he began to work as a journalist and to write theatre reviews during the '20s, its initial connections with the Minority Group, which played an important role in the Cuban republican period, and his trip to Mexico in 1926, which sets up his first direct contact the American nature and culture. Keywords: Alejo Carpentier; journalist; minorism; American nature; autodidacticism; the '20s ________________________________________________________________________________________ Carpentier, la otra novela (chap. IV Résumé: Cet essai, qui est extrait (chap. IV de l’ouvrage inédit d’Urbano Martínez Carmenate, Carpentier, la otra novela, offre un regard sur les premières années de la trajectoire professionnelle d’Alejo Carpentier. Il y est question de ses débuts en tant que journaliste et chroniqueur théâtral, au cours des années 1920, ainsi que des connexions qu’il établit avec le Groupe Minoriste, qui joua un rôle de premier ordre lors de l’étape républicaine à Cuba. Est aussi abordé son voyage au Mexique

  8. Prenatal IV Cocaine: Alterations in Auditory Information Processing

    Directory of Open Access Journals (Sweden)

    Charles F. Mactutus

    2011-06-01

    Full Text Available One clue regarding the basis of cocaine-induced deficits in attentional processing is provided by the clinical findings of changes in the infants’ startle response; observations buttressed by neurophysiological evidence of alterations in brainstem transmission time. Using the IV route of administration and doses that mimic the peak arterial levels of cocaine use in humans, the present study examined the effects of prenatal cocaine on auditory information processing via tests of the acoustic startle response (ASR, habituation, and prepulse inhibition (PPI in the offspring. Nulliparous Long-Evans female rats, implanted with an IV access port prior to breeding, were administered saline, 0.5, 1.0, or 3.0 mg/kg/injection of cocaine HCL (COC from gestation day (GD8-20 (1x/day-GD8-14, 2x/day-GD15-20. COC had no significant effects on maternal/litter parameters or growth of the offspring. At 18-20 days of age, one male and one female, randomly selected from each litter displayed an increased ASR (>30% for males at 1.0 mg/kg and >30% for females at 3.0 mg/kg. When reassessed in adulthood (D90-100, a linear dose-response increase was noted on response amplitude. At both test ages, within-session habituation was retarded by prenatal cocaine treatment. Testing the females in diestrus vs. estrus did not alter the results. Prenatal cocaine altered the PPI response function across interstimulus interval (ISI and induced significant sex-dependent changes in response latency. Idazoxan, an alpha2-adrenergic receptor antagonist, significantly enhanced the ASR, but less enhancement was noted with increasing doses of prenatal cocaine. Thus, in utero exposure to cocaine, when delivered via a protocol designed to capture prominent features of recreational usage, causes persistent, if not permanent, alterations in auditory information processing, and suggests dysfunction of the central noradrenergic circuitry modulating, if not mediating, these responses.

  9. Modcomp MAX IV System Processors reference guide

    Energy Technology Data Exchange (ETDEWEB)

    Cummings, J.

    1990-10-01

    A user almost always faces a big problem when having to learn to use a new computer system. The information necessary to use the system is often scattered throughout many different manuals. The user also faces the problem of extracting the information really needed from each manual. Very few computer vendors supply a single Users Guide or even a manual to help the new user locate the necessary manuals. Modcomp is no exception to this, Modcomp MAX IV requires that the user be familiar with the system file usage which adds to the problem. At General Atomics there is an ever increasing need for new users to learn how to use the Modcomp computers. This paper was written to provide a condensed Users Reference Guide'' for Modcomp computer users. This manual should be of value not only to new users but any users that are not Modcomp computer systems experts. This Users Reference Guide'' is intended to provided the basic information for the use of the various Modcomp System Processors necessary to, create, compile, link-edit, and catalog a program. Only the information necessary to provide the user with a basic understanding of the Systems Processors is included. This document provides enough information for the majority of programmers to use the Modcomp computers without having to refer to any other manuals. A lot of emphasis has been placed on the file description and usage for each of the System Processors. This allows the user to understand how Modcomp MAX IV does things rather than just learning the system commands.

  10. New mono-organotin (IV) dithiocarbamate complexes

    International Nuclear Information System (INIS)

    Eighteen new mono-organotin dithiocarbamate compounds derived each nine from methyltin(IV) and phenyltin(IV) reacted using in-situ method with various type of N-dialkylamine together with carbon disulphide with the ratio of 1:3:3. Elemental and gravimetric analysis showed that the general formula of these compounds were RSnCl[S2CNR′R″]2 (R= Ph, CH3, R′ = CH3, C2H5, C7H7 and R″ = C2H5, C6H11, iC3H7, C7H7). These compounds had been characterized by infrared spectroscopy, ultraviolet spectroscopy, 1H, 13C NMR spectroscopy and single crystal X-ray crystallography. The infrared spectra of these compounds showed three important peaks indicating the formation of dithiocarbamate compounds, ν(CN), ν(CS) and ν(Sn-S) band which present in the region of 1444–1519, 954–1098 and 318–349 cm−1 respectively. The ultraviolet-visible spectra showed an absorption band for the π - π* transition of NCS group in the range of 253 – 259 nm due to the intramolecular charge transfer of the ligand. The 13C NMR spectra showed an important shift for δ(N13CS2) in the range of 196.8 – 201.9 ppm.. Single crystal X-ray diffraction studies showed three new structures with the general formula of PhSnCl[S2CN(Et)(i−Pr)]2, MeSnCl[S2CN(Me)(Cy)]2 and MeSnCl[S2CN(i−Pr)(CH2Ph)]2. All structures having a distorted octahedral geometry set by CClS4 donor atom from the two chelating dithiocarbamate ligands

  11. A Genomewide Association Study of DSM-IV Cannabis Dependence

    OpenAIRE

    Agrawal, Arpana; Lynskey, Michael T.; Hinrichs, Anthony; Grucza, Richard; Saccone, Scott F; Krueger, Robert; Neuman, Rosalind; Howells, William; Fisher, Sherri; Fox, Louis; Cloninger, Robert,; Dick, Danielle M; Doheny, Kimberly F.; Edenberg, Howard J.; Goate, Alison M.

    2010-01-01

    Despite twin studies showing that 50–70% of variation in DSM-IV cannabis dependence is attributable to heritable influences, little is known of specific genotypes that influence vulnerability to cannabis dependence. We conducted a genomewide association study of DSM-IV cannabis dependence. Association analyses of 708 DSM-IV cannabis dependent cases with 2,346 cannabis exposed nondependent controls was conducted using logistic regression in PLINK. None of the 948,142 SNPs met genomewide signif...

  12. Collagen IV in normal skin and in pathological processes

    Directory of Open Access Journals (Sweden)

    Ana Maria Abreu-Velez

    2012-01-01

    Full Text Available Context: Type IV collagen is a type of collagen found primarily in the skin within the basement membrane zone. The type IV collagen C4 domain at the C-terminus is not removed in post-translational processing, and the fibers are thus link head-to-head, rather than in a parallel fashion. Also, type IV collagen lacks a glycine in every third amino-acid residue necessary for the tight collagen helix. Thus, the overall collagen-IV conformation is structurally more pliable and kinked, relative to other collagen subtypes. These structural features allow collagen IV to form sheets, which is the primary structural form found in the cutaneous basal lamina. There are six human genes associated with collagen IV, specifically COL4A1, COL4A2, COL4A3, COL4A4, COL4A5 and COL4A6. The aim of this review is to highlight the significance of this protein in normal skin, and in selected diseases. Results: The alpha 3 protein constituent of type IV collagen is thought to be the antigen implicated in Goodpasture′s syndrome, wherein the immune system attacks the basement membranes of the renal glomeruli and pulmonary alveoli. In addition, mutations to the genes coding for type IV collagen lead to the Alport syndrome. Furthermore, autoantibodies directed against denatured human type IV collagen have been described in rheumatoid arthritis, scleroderma, and SLE. Structural studies of collagen IV have been utilized to differentiate between subepidermal blistering diseases, including bullous pemphigoid, acquired epidermolysis bullosa, anti-epiligrin cicatricial pemphigoid, and bullous lupus erythematosus. Collagen IV is also of importance in wound healing and in embryogenesis. Conclusions: Pathological studies have demonstrated that minor structural differences in collagen IV can lead to distinct, clinically different diseases.

  13. Periodate and tellurate complexes of terbium(IV)

    International Nuclear Information System (INIS)

    Solutions and solid complexes of Tb(IV) tellurate and periodate were prepared on the basis of synthesis methods developed. Data provided by X-ray diffraction of powder and electron spectroscopy suggest individuality of Tb(IV) derivatives. Data on transition energies with charge transfer in absorption spectra of the complexes and literature data permit defining the following stability series of Tb(IV) complexes: heteropolytungstates feature the highest stability, then stability decreases to periodate and subsequently to tellurite and carbonate complexes

  14. Attachment of cells to basement membrane collagen type IV

    OpenAIRE

    1986-01-01

    Of ten different cell lines examined, three showed distinct attachment and spreading on collagen IV substrates, and neither attachment nor spreading was enhanced by adding soluble laminin or fibronectin. This reaction was not inhibited by cycloheximide or antibodies to laminin, indicating a direct attachment to collagen IV without the need of mediator proteins. Cell-binding sites were localized to the major triple-helical domain of collagen IV and required an intact triple helical conformatio...

  15. Resistência de biótipos de arroz-vermelho aos herbicidas imazapyr + imazapic e alternativas de controle

    Directory of Open Access Journals (Sweden)

    Rafael Salles Rubin

    2014-10-01

    Full Text Available O uso intenso de herbicidas com o mesmo mecanismo de ação na cultura do arroz (Oryza sativa L. tem selecionado biótipos resistentes, como, por exemplo, o arroz-vermelho (planta daninha resistente aos herbicidas imidazolinonas. Por essa razão, este trabalho foi desenvolvido com o objetivo de avaliar a resistência de arroz-vermelho ao herbicida imazapyr + imazapic, na região sul do Rio Grande do Sul, e o controle do biótipo resistente de arroz-vermelho com os herbicidas alternativos clethodim e glyphosate. Foram realizados três experimentos, em delineamento casualizado, arranjados em esquema fatorial. No primeiro experimento, o fator A testou biótipos de arroz-vermelho [ORYSA 184 (resistente e ORYSA 188 (susceptível], o fator B comparou herbicidas (imazapyr + imazapic, clethodim e glyphosate e o fator C avaliou doses dos herbicidas (0; 0,5; 1; 2; 4; 8; 16 e 32 vezes a dose recomendada. No segundo, compararam-se biótipos de arroz-vermelho e doses do herbicida imazapyr + imazapic (0; 0,5; 1; 2; 4; 8; 16; 32 e 64 vezes a dose recomendada. No terceiro, testaram-se biótipos de arroz-vermelho e doses diferentes do herbicida imazapyr + imazapic para cada biótipo. O biótipo ORYSA 184 é resistente ao imazapyr + imazapic, quando aplicada a dose máxima de registro e estádio indicado. Os herbicidas clethodim e glyphosate, detentores de mecanismos de ação alternativos, controlam o biótipo resistente ORYSA 184 de arroz-vermelho.

  16. Diferencias en el apoyo social percibido entre cuidadores informales y formales de pacientes con demencia tipo Alzheimer

    OpenAIRE

    Daysy Katherine Pabón Poches; Mayra Jualiana Galvis Aparicio; Ara Mercedes Cerquera Córdoba

    2014-01-01

    Este estudio de tipo no experimental transversal comparativo tuvo como objetivo identificar las diferencias de apoyo social percibido entre cuidadores informales y formales de la ciudad de Bucaramanga (Colombia) y su área metropolitana. Se evaluaron 53 informales y 62 cuidadores formales de pacientes con demencia tipo Alzheimer por medio del cuestionario MOS de apoyo social percibido. Se logró determinar que existe una diferencia estadísticamente significativa entre interacción social (p=0,03...

  17. Astragaloside IV suppresses transforming growth factor-β1 induced fibrosis of cultured mouse renal fibroblasts via inhibition of the MAPK and NF-κB signaling pathways

    International Nuclear Information System (INIS)

    Renal fibrosis, a progressive process characterized by the accumulation of extracellular matrix (ECM) leading to organ dysfunction, is a characteristic of chronic kidney diseases. Among fibrogenic factors known to regulate the renal fibrotic process, transforming growth factor-β (TGF-β) plays a central role. In the present study, we examined the effect of Astragaloside IV (AS-IV), a component of the traditional Chinese medicinal plant Astragalus membranaceus, on the processes associated with renal fibrosis in cultured mouse renal fibroblasts treated with TGF-β1. RT-PCR, western blotting, immunofluorescence staining and collagen assays showed that AS-IV suppressed TGF-β1 induced fibroblast proliferation, transdifferentiation, and ECM production in a dose-dependent manner. Examination of the underlying mechanisms showed that the effect of AS-IV on the inhibition of fibroblast differentiation and ECM formation were mediated by its modulation of the activity of the MAPK and NF-κB signaling pathways. Taken together, our results indicate that AS-IV alleviates renal interstitial fibrosis via a mechanism involving the MAPK and NF-κB signaling pathways and demonstrate the therapeutic potential of AS-IV for the treatment of chronic kidney diseases. - Highlights: • AS-IV suppressed TGF-β1 induced renal fibroblast proliferation. • AS-IV suppressed TGF-β1 induced renal fibroblast transdifferentiation. • AS-IV suppressed TGF-β1 induced ECM production. • AS-IV alleviates renal fibrosis via the MAPK and NF-κB signaling pathways

  18. Astragaloside IV suppresses transforming growth factor-β1 induced fibrosis of cultured mouse renal fibroblasts via inhibition of the MAPK and NF-κB signaling pathways

    Energy Technology Data Exchange (ETDEWEB)

    Che, Xiajing; Wang, Qin; Xie, Yuanyuan; Xu, Weijia; Shao, Xinghua; Mou, Shan, E-mail: shan_mou@126.com; Ni, Zhaohui, E-mail: doctor_nzh@126.com

    2015-09-04

    Renal fibrosis, a progressive process characterized by the accumulation of extracellular matrix (ECM) leading to organ dysfunction, is a characteristic of chronic kidney diseases. Among fibrogenic factors known to regulate the renal fibrotic process, transforming growth factor-β (TGF-β) plays a central role. In the present study, we examined the effect of Astragaloside IV (AS-IV), a component of the traditional Chinese medicinal plant Astragalus membranaceus, on the processes associated with renal fibrosis in cultured mouse renal fibroblasts treated with TGF-β1. RT-PCR, western blotting, immunofluorescence staining and collagen assays showed that AS-IV suppressed TGF-β1 induced fibroblast proliferation, transdifferentiation, and ECM production in a dose-dependent manner. Examination of the underlying mechanisms showed that the effect of AS-IV on the inhibition of fibroblast differentiation and ECM formation were mediated by its modulation of the activity of the MAPK and NF-κB signaling pathways. Taken together, our results indicate that AS-IV alleviates renal interstitial fibrosis via a mechanism involving the MAPK and NF-κB signaling pathways and demonstrate the therapeutic potential of AS-IV for the treatment of chronic kidney diseases. - Highlights: • AS-IV suppressed TGF-β1 induced renal fibroblast proliferation. • AS-IV suppressed TGF-β1 induced renal fibroblast transdifferentiation. • AS-IV suppressed TGF-β1 induced ECM production. • AS-IV alleviates renal fibrosis via the MAPK and NF-κB signaling pathways.

  19. El trabajo artesanal en Augusta Emerita durante los ss. I-IV d. C

    Directory of Open Access Journals (Sweden)

    Macarena BUSTAMANTE ÁLVAREZ

    2014-01-01

    Full Text Available Actualmente en la antigua capital lusitana es posible examinar, además de los restos arquitectónicos de sus edificios públicos y de una espléndida musivaria en ámbito doméstico, los indicios de otras producciones locales a las que hasta ahora no se les había concedido más que un interés de tipo secundario. En el presente trabajo damos a conocer una síntesis de las evidencias arqueológicas existentes del artesanado emeritense durante los ss. I-IV d. C. Este tema había sido revisado de manera aislada y esporádica en este solar. Aquí se valoran las estructuras, modos productivos y posibles evidencias de la mano de obra usada. Las constantes excavaciones que se han desarrollado en las últimas décadas han sacado a la luz 33 hornos cerámicos, 2 molinos alimentarios, 7 fullonicae, 1 officina infectae, 4 talleres de vidrio, 1 lanifricaria, 2 talleres de hueso, 2 pistrinae, 2 hornos metalúrgicos y 3 caleras que permiten el desarrollo de estudios de cierta envergadura. La industrial textil, la alfarera, alimentaria o metalúrgica, entre otras, son analizadas arqueológicamente. A partir de ello ha sido posible establecer un mapa de distribución de las distintas áreas manufactureras y de sus posibles zonas de influencia.

  20. Type IV collagen-degrading enzyme activity in human serum.

    Directory of Open Access Journals (Sweden)

    Hashimoto,Noriaki

    1988-02-01

    Full Text Available Type IV collagen-degrading enzyme activity was detected in human serum. Serum was preincubated with 4-aminophenylmercuric acetate and trypsin to activate the enzyme prior to assay. Type IV collagen, purified from human placentas and radiolabeled with [1-14C] acetic anhydride, was used as the substrate. The enzyme activity was measured at pH 7.5 and inhibited by treatment with ethylenediaminetetraacetic acid or heat. The assay of type IV collagen-degrading enzyme in human serum might be useful for estimating the degradation of type IV collagen.

  1. Reg IV Protein is Expressed in Normal Rat Tissue

    OpenAIRE

    Starčević-Klasan, Gordana; Ažman, Josip; Picard, Anne; Jurišić-Eržen, Dubravka; Nikolić, Marina; Jerković, Romana

    2008-01-01

    The Reg IV gene has been documented in the colon, small intestine, stomach and pancreas of the human. Expression of the Reg IV in different cell types has been associated with regeneration, cell growth and cell survival, cell adhesion and resistance to apoptosis. It is unknown whether the Reg IV protein is present in the normal rat tissue. The aim of this study was to reveal the expression of the Reg IV protein in the rat spleen and colon. Western blot analysis using antibody spec...

  2. The state of Th(IV) in solutions of EDTA

    International Nuclear Information System (INIS)

    The work was dedicated to determination of the Th(IV) forms in aqueous solutions in the wide ranges of pH and metal ion concentrations, investigation of the Th4+-cation hydrolytic polymerization and EDTA anion influence on the Th(IV) state in the solutions. The dialysis, centrifugation, spectrophotometry methods were used to achieve the objectives. It was shown, that concentration of Th(IV) polynuclear form depends on EDTA anion concentration in the solutions. The polynuclear form concentration decreases with the increase of EDTA concentration. The increase of pH shifts the established equilibrium to formation of Th(IV) polynuclear complexes formation

  3. BALTICA IV. Plant maintenance for managing life and performance

    Energy Technology Data Exchange (ETDEWEB)

    Hietanen, S.; Auerkari, P. [eds.] [VTT Manufacturing Technology, Espoo (Finland). Operational Reliability

    1998-12-31

    BALTICA IV International Conference on Plant Maintenance Managing Life and performance held on September 7-9, 1998 on board M/S Silja Symphony on its cruise between Helsinki-Stockholm and at Aavaranta in Kirkkonummi. The BALTICA IV conference provides a forum for the transfer of technology from applied research to practice. This is one of the two volumes of the proceedings of the BALTICA IV International Conference on Plant Maintenance Managing Life and Performance. The BALTICA IV conference focuses on new technology, recent experience and applications of condition and life management, and on improvements in maintenance strategies for safe and economical operation of power plants. (orig.)

  4. Adaptabilidade, estabilidade e resistência a patógenos em genótipos de feijoeiro

    Directory of Open Access Journals (Sweden)

    Cleber Vinicius Giaretta Azevedo

    2015-10-01

    Full Text Available Resumo:O objetivo deste trabalho foi avaliar a resistência de genótipos de feijoeiro aos principais patógenos da cultura, bem como a adaptabilidade e a estabilidade de produção de grãos desses genótipos. Avaliaram-se 26 genótipos de feijoeiro quanto à resistência a Colletotrichum lindemuthianum, Fusarium oxysporum f. sp. phaseolie Xanthomonas axonopodis pv. phaseoli, por meio de inoculação, em laboratório, e em 19 ensaios de valor de cultivo e uso (VCU, em diferentes locais do Estado de São Paulo, nas safras das "águas", "seca" e "inverno", durante os anos agrícolas 2011, 2012 e 2013. Dezoito genótipos foram considerados resistentes: sete deles a C. lindemuthianum, sete a F. oxysporumf. sp. phaseolie quatro a X. axonopodispv. phaseoli. A reação de resistência aos patógenos está associada à estabilidade dos genótipos. Por meio das análises GGE biplot, foi possível identificar genótipos com adaptabilidade e estabilidade superiores às das testemunhas, nos dois grupos de tegumento avaliados, em todas as épocas de semeadura.

  5. Kinetics and mechanism of iridium (III) catalysed oxidation of tellurium (IV) by cerium (IV) in sulfuric acid medium

    International Nuclear Information System (INIS)

    The kinetics and mechanism of iridium (III) catalysed oxidation of tellurium (IV) by cerium (IV) have been studied in sulfuric acid medium. The reaction is first order in [Ir (III)] as well as in [Ce (IV)] and fractional order (0.23) in [Te (IV)]. Increase in [H3O+] accelerates the rate while that in ionic strength or [HSO4-] retards. Ce (III), one of the products, inhibits while the other, Te (VI), has negligible effect on the rate. The reaction is supposed to proceed via the formation of a complex between Te (IV) and Ir (III) which in turn reacts with active Ce (IV) species in a reversible step. A rate law, consistent with the observed kinetic data, has been derived basing on the proposed mechanism. (author)

  6. Synergy between a collagen IV mimetic peptide and a somatotropin-domain derived peptide as angiogenesis and lymphangiogenesis inhibitors

    OpenAIRE

    Koskimaki, Jacob E.; Lee, Esak; Chen, William; Rivera, Corban G.; Rosca, Elena V.; Pandey, Niranjan B.; Popel, Aleksander S.

    2012-01-01

    Angiogenesis is central to many physiological and pathological processes. Here we show two potent bioinformatically-identified peptides, one derived from collagen IV and translationally optimized, and one from a somatotropin domain-containing protein, synergize in angiogenesis and lymphangiogenesis assays including cell adhesion, migration and in vivo Matrigel plugs. Peptide-peptide combination therapies have recently been applied to diseases such as human immunodeficiency virus (HIV), but re...

  7. Synthesis and characterization of manganese (III), iron (III), zirconium (IV), thorium (IV), oxovanadium (IV) and dioxouranium (VI) chelates of a polymeric Schiff base (PSB)

    International Nuclear Information System (INIS)

    A few symmetrical tetradentate polymeric Schiff base (PSB) chelates of the type [M(PSB)n where M=Mn (III), Fe (III), Zr (IV), oxovanadium (IV), Th (IV), dioxouranium (VI) and PSB is derived from 4, 4'-dihydroxy-3, 3'-dipropylbiphenyl and 1,3- diaminopropane, have been synthesised and characterized by elemental analysis, magnetic moment, IR, electronic spectra and TGA studies. The D.C. electrical conductivity and antimicrobial activities of ligand and the chelates have also been studied. The thermal decomposition of the chelates occurs mainly in two steps. Thermal activation energy has been determined by Broido method. (author)

  8. Some mixed ligands complexes of zirconium (IV), thorium (IV) and uranium (VI)

    International Nuclear Information System (INIS)

    New thiocyanato complexes of Zr(IV), Th(IV), Th(IV) and U(VI) containing polydentate Schiff's base ligands derived from the condensation of salicylaldehyde with triethylene tetramine or 1,3-diamino propane have been synthesized and characterized. The complexes have compositions, [Zr(SCN)/sub 2/ L'], [Th (SCN)/sub 2/ L], [U(O) (SCN)/sub 2/ L'], and [U (O) (SCN)/sub 2/ L], [Schiff's base ligands, L' = N/sub 4/C/sub 8/H/sub 16/ (C/sub 6/H/sub 4/OH)/sub 2/ ; L = N/sub 2/C/sub 5/H/sub 8/ (C/sub 6/H/sub 4/OH)/sub 2/]. As per IR spectral data, the am bidentate thiocyanato ligand is N-coordinated suggesting that the metal centres behave as class a acceptors. Thiocyanato complexes of transition metals containing Schiff's base ligands but reports on thiocyanato complex of heavier metal ions are lacking. Reagent grade chemicals were used as supplied by BDH or Merck. (Orig./A.B.)

  9. ivähoitomaksu-uudistus : Mitä tuntiperusteinen päivähoitomaksu muuttaa?

    OpenAIRE

    Ylikärppä, Anneli

    2015-01-01

    ivähoitomaksu-uudistus – Mitä tuntiperusteinen päivähoitomaksu muuttaa? Opinnäytetyönä tekemäni kehittämishanke sisältää selvitystyön Kemin kaupungin varhaiskasvatukselle. Hankkeeni aiheena on tuntiperusteinen päivähoitomaksu-uudistus ja tavoitteena on selvittää, mitä muutoksia se tuo lapselle, vanhemmille, työntekijöille ja palvelun järjestäjälle. Lähtökohtana päivähoitomaksu-uudistuksella on valtioneuvoston rakennepoliittinen ohjelma, jonka tavoitteena on vahvistaa talouskasvua ja...

  10. A classification system for O-B2 stars based on the Si IV and C IV resonance lines

    Science.gov (United States)

    Henize, K. G.; Wray, J. D.; Parsons, S. B.

    1981-01-01

    Low-dispersion ultraviolet spectra from Skylab Experiment S-019 are used to explore the variations of Si IV and C IV line strengths with temperature and luminosity. These considerations lead to a classification system in which the Si/C ratio is used to discriminate luminosity among the O stars and temperature among the O9-B2 stars of lower luminosity. Stars falling in these two regimes may be distinguished either by the presence of C IV emission or on the basis of C IV absorption strength. The log(Si IV/C IV) vs C IV diagram is proposed as a primary tool in such a classification system. The rapid variation in the Si IV/C IV ratio from less than 1/10 at O9 to greater than 10 at B1.5 for luminosity class III-V stars appears to be an especially useful criterion for the temperature classification of stars in this spectral range.

  11. The extracellular matrix of hydra is a porous sheet and contains type IV collagen.

    Science.gov (United States)

    Shimizu, Hiroshi; Aufschnaiter, Roland; Li, Li; Sarras, Michael P; Borza, Dorin-Bogdan; Abrahamson, Dale R; Sado, Yoshikazu; Zhang, Xiaoming

    2008-01-01

    Hydra, as an early diploblastic metazoan, has a well-defined extracellular matrix (ECM) called mesoglea. It is organized in a tri-laminar pattern with one centrally located interstitial matrix that contains type I collagen and two sub-epithelial zones that resemble a basal lamina containing laminin and possibly type IV collagen. This study used monoclonal antibodies to the three hydra mesoglea components (type I, type IV collagens and laminin) and immunofluorescent staining to visualize hydra mesoglea structure and the relationship between these mesoglea components. In addition, hydra mesoglea was isolated free of cells and studied with immunofluorescence and scanning electron microscopy (SEM). Our results show that type IV collagen co-localizes with laminin in the basal lamina whereas type I collagen forms a grid pattern of fibers in the interstitial matrix. The isolated mesoglea can maintain its structural stability without epithelial cell attachment. Hydra mesoglea is porous with multiple trans-mesoglea pores ranging from 0.5 to 1 microm in diameter and about six pores per 100 microm(2) in density. We think these trans-mesoglea pores provide a structural base for epithelial cells on both sides to form multiple trans-mesoglea cell-cell contacts. Based on these findings, we propose a new model of hydra mesoglea structure. PMID:18602803

  12. Influence of cavity design on the biomechanics of direct composite resin restorations in Class IV preparations.

    Science.gov (United States)

    Xu, Haiping; Jiang, Zhe; Xiao, Ximei; Fu, Jing; Su, Qin

    2012-04-01

    This study evaluated the effect of cavity design on stress distribution and fracture resistance of direct composite resin restorations in Class IV preparations. A finite element analysis (FEA) model of the maxillary central incisor with a Class IV cavity was established. Five model variations were studied: (i) a 1-mm bevel (ii) a 2-mm bevel, (iii) a plain chamfer, (iv) a stair-step chamfer, and (v) butt joints (a control configuration). All FEA variations modeled a tooth restored with composite resin loaded under 100 N at an angle of 45° to the longitudinal axis. The interfacial von Mises stress was evaluated. The FEA was complemented with an in vitro assessment. Fracture resistance of direct composite resin restorations was tested with a universal testing machine and fracture patterns were observed. Finite element analysis showed that stress in chamfer and stair-step chamfer models was more homogenously distributed, while stress in bevel models was relatively concentrated at lingual regions. Fracture resistance of a 1-mm bevel preparation was lower than for the 2-mm bevel, plain chamfer, and stair-step chamfer preparations, but was higher than for butt joints. The stair-step chamfer group presented the most favorable failure pattern. Considering biomechanics and esthetics, the present study indicates that the stair-step chamfer and 2-mm bevel should be recommended for clinical restoration. PMID:22409223

  13. The extracellular matrix of hydra is a porous sheet and contains type IV collagen

    Science.gov (United States)

    Shimizu, Hiroshi; Aufschnaiter, Roland; Li, Li; Sarras, Michael P.; Borza, Dorin-Bogdan; Abrahamson, Dale R.; Sado, Yoshikazu; Zhang, Xiaoming

    2008-01-01

    Hydra, as an early diploblastic metazoan, has a well defined extracellular matrix (ECM) called-mesoglea. It is organized in a tri-laminar pattern with one centrally located interstitial matrix that contains type I collagen and two sub-epithelial zones that resemble a basal lamina containing laminin and possibly type IV collagen. This study used monoclonal antibodies to the three hydra mesoglea components (type I, type IV collagens and laminin) and immunofluorescent staining to visualize hydra mesoglea structure and the relationship between these mesoglea components. In addition, hydra mesoglea was isolated free of cells and studied with immunofluorescence and SEM. Our results show that type IV collagen co-localizes with laminin in the basal lamina whereas type I collagen forms a grid pattern of fibers in the interstitial matrix. The isolated-mesoglea can maintain its structural stability without epithelial cell attachment. Hydra mesogleais porous with multiple trans-mesoglea pores ranging from 0.5 to 1 µm in diameter and about 6 pores per 100 µm2 in density. We think these trans-mesoglea pores provide a structural base for epithelial cells on both sides to form multiple trans-mesoglea cell-cell contacts. Based on these findings, we propose a new model of hydra mesoglea structure. PMID:18602803

  14. Variación de la actividad cognitiva en diferentes tipos de pruebas de fluidez verbal.

    Directory of Open Access Journals (Sweden)

    Julián C. Marino

    2009-12-01

    Full Text Available En esta investigación se aplicaron diez pruebas de fluidez verbal del tipo fonológico, categorial, gramatical y combinadas a 259 adultos argentinos (15 a 70 años con el fin de conocer su correlación con la actividad ejecutiva, semántica y atencional. Se indagó sobre la estructura teórica de cada prueba de fluidez verbal, a fines de determinar la lógica de sus variaciones. El objetivo final de la investigación fue aportar al desarrollo de un explorador neuropsicológico en fluidez verbal, que sea útil para hacer evaluaciones breves y sencillas, incluyendo situaciones difíciles como pacientes hospitalizados, y tratando de extraer la máxima información posible de la actividad cognitiva. RESULTADOS: se realizaron análisis descriptivos sobre las pruebas de fluidez verbal, análisis factorial sobre las variables de la actividad cognitiva y análisis de regresión múltiples, ingresando como variables independientes las variables cognitivas y como dependientes cada una de las pruebas de fluidez verbal. CONCLUSIONES: los modelos predictivos hallados indican variaciones sistemáticas en relación al compromiso cognitivo entre los tipos de pruebas de fluidez verbal. También se hallaron variaciones dentro de cada tipo. Esto indica que el explorador en fluidez verbal puede ser una herramienta útil para evaluar diferentes capacidades y funciones cognitivas.

  15. El coste de la diabetes tipo 2 en España: El estudio CODE-2

    Directory of Open Access Journals (Sweden)

    Mata M.

    2002-01-01

    Full Text Available Objetivo: Estimar el coste de la atención sanitaria al paciente diabético tipo 2, diferenciando el gasto derivado del control de la enfermedad, de la atención de sus complicaciones y de otros costes directos asociados. Métodos: Recogida retrospectiva del consumo de recursos a partir de la historia clínica y la entrevista personal en 29 centros de atención primaria de todo el territorio nacional de una muestra de pacientes seleccionados de forma aleatoria a partir del registro de diabéticos de cada centro. Resultados: Se evaluó a 1.004 pacientes (561 mujeres con una media de edad de 67,42 años y una media de evolución de la enfermedad de 10,07 años. El 50,9% no presentaba complicaciones, el 17,7% sólo macrovasculares, el 19,5% sólo microvasculares y el 11,9% ambas. El coste anual sanitario por paciente fue de 1.305,15 euros. De este coste el 28,6% (373,27 euros estaba relacionado directamente con el control de la diabetes, el 30,51% (398,20 euros con sus complicaciones y el 40,89% (533,68 euros no estaba relacionado. El coste medio de un paciente sin complicaciones fue de 883 euros frente a 1.403 de un paciente con complicaciones microvasculares, 2.022 cuando existían complicaciones macrovasculares y 2.133 cuando coexistían ambos tipos de complicaciones. Conclusiones: El elevado coste del tratamiento de la diabetes tipo 2 y sus complicaciones, sugiere la posibilidad de que la mejora del control de la enfermedad pueda no sólo mejorar la supervivencia y la calidad de vida, sino reducir los costes asociados con las complicaciones crónicas.

  16. Pipe type poles in transmission power lines; Postes tipo tubo en lineas de transmision

    Energy Technology Data Exchange (ETDEWEB)

    Cervantes E, Mario; Becerril A, Armando [Luz y Fuerza del Centro, Mexico, D. F. (Mexico)

    1997-12-31

    The first supports for transmission power lines were relatively small structures, of simple configuration, to save reduced clearances to resist load in accordance with its need; with the technical development, gradually appeared higher and higher electric tensions and greater obstacles to overcome, consequently the design of the supports had to be adapted to the new conditions. This gave rise to the development of a specific technique that would adequate and incorporate the continuous engineering advances. In this document the initial considerations on the design poles pipe type are examined; within these considerations mention is made of: the design, the manufacture, the prototype tests, installation, quality control and foundations. The type tube pole is portrayed, as well as the steel reinforcement, finally the types of precast foundations are shown [Espanol] Los primeros soportes para lineas de transmision fueron estructuras relativamente pequenas, de configuracion simple, para salvar claros reducidos y resistir cargas proporcionales a sus necesidades, con el desarrollo de la tecnica, fueron apareciendo tensiones electricas cada vez mas elevadas y obstaculos mayores que vencer, por lo que el diseno de los soportes tuvo que adaptarse a las nuevas condiciones. Esto dio origen al desenvolvimiento de una tecnica especifica que fuese adecuando e incorporando los continuos avances de la ingenieria. En este documento se tratan las consideraciones iniciales del diseno de los postes tipo tubo; dentro de estas consideraciones se citan: el diseno, la fabricacion, las pruebas de prototipo, montajes, control de calidad y cimentaciones. Se ilustra el poste tipo tubo, al igual que el armado del poste, por ultimo se muestra los tipos de cimentaciones precoladas

  17. TRANSFORMACIONES LÚDICAS. UN ESTUDIO PRELIMINAR SOBRE TIPOS DE JUEGO Y ESPACIOS LÚDICOS

    Directory of Open Access Journals (Sweden)

    GRACIELA STEFANI

    2014-01-01

    Full Text Available En la actualidad las modalidades lúdicas de los niños se han ido modificando. En las últimas dé- cadas, en la Ciudad Autónoma de Buenos Aires se han producido cambios en los espacios lúdicos, que llevan a los niños a realizar cada vez más ac- tividades en espacios privados o semipúblicos, ha- ciendo variar su manera de jugar. El objetivo del estudio que se informa fue des cribir y analizar l as transformaciones lúdicas, a partir de los juegos de los niños, los espacios y la percepción, y el re- cuerdo de personas pertenecientes a distintas ge- neraciones. Participaron 516 sujetos de estrato so- cial medio, agrupados en cuatro franjas de edad: niños, adolescentes, jóvenes y adultos y se les ad- ministró el Cuestionario Semiestructurado sobre Jue gos (Stefani, Andrés & Oanes, 2010. Los da- tos obtenidos fueron clasificados de acuerdo a los diferentes tipos de juegos y espacios lúdicos, a fi n de describir semejanzas y diferencias entre las respuestas dadas por los diferentes grupos de la mues- tra. Además se calcularon frecuencias y porcenta- jes de los juegos y de los espacios predominantes por edad. A fin de evaluar la asociación entre las variables tipo de juegos y tipo de espacios con las distintas franjas de edad, se aplicó la prue ba de in- dependencia de atributos chi-cuadrado. Los resul- tados permiten observar que los juegos se fueron transformando junto con los espacios donde se desarrollan, llevando a los niños a realizar sus prácticas cada vez más puertas adentro.

  18. CONTROL PREDICTIVO DE UN ROBOT TIPO SCARA PREDICTIVE CONTROL OF A SCARA ROBOT

    Directory of Open Access Journals (Sweden)

    Oscar Andrés Vivas Albán

    2006-08-01

    Full Text Available Este artículo presenta una aplicación eficiente de un control por modelo de referencia sobre un robot de tipo SCARA. El control estudiado es un control predictivo funcional, el que hace uso de un modelo dinámico simplificado del robot. Los ensayos simulados se realizan sobre un robot de cuatro grados de libertad, tipo SCARA. Con el fin de comparar diferentes estrategias de control, se diseña un controlador clásico tipo PID y dos controladores basados en el modelo de referencia. En este último caso el sistema se linealiza y se desacoplada por realimentación, lo que transforma el sistema a controlar en un simple par de integradores. Al sistema lineal y desacoplado resultante se le aplica el control por par calculado y el control predictivo funcional. Los tres controladores estudiados se simulan sobre el robot SCARA con valores numéricos reales. Las pruebas permiten valorar las respuestas de estos controladores en seguimiento de trayectoria, rechazo de perturbaciones y presencia de errores en el modelado con consignas complejas similares a las utilizadas en procesos de fabricación.This paper describes an efficient approach for model based control, applied on a SCARA robot. The studied control is the predictive functional control which uses a simplified dynamical model of the robot. The simulated tests are made on a SCARA type robot, with four DOF. To compare several control strategies, a classical PID control and two model based controllers are designed. In the last case, the model is first linearized and decoupled by feedback, transforming the system into a double set of integrators. Computed torque control and predictive functional control are applied to the linear and decoupled system. The three studied controllers are simulated on the SCARA robot with real numerical values. Tracking performance, disturbance rejection and model robot mismatch are enlightened, using complex machining tasks trajectories and error presence in the modelling

  19. COMPORTAMENTO DE GENÓTIPOS DE ABACAXIZEIRO RESISTENTES À FUSARIOSE EM COMPARAÇÃO A CULTIVARES COMERCIAIS SUSCETÍVEIS

    Directory of Open Access Journals (Sweden)

    LUIZ CARLOS SANTOS CAETANO

    2015-06-01

    Full Text Available A fusariose é a doença mais severa na cultura do abacaxi no Brasil, e as cultivares mais plantadas, ‘Pérola’ e ‘Smoth Cayenne’, são suscetíveis, com perdas estimadas em 30 a 40% dos frutos. O uso de genótipos resistentes à doença abre grande perspectiva para a solução do problema. O objetivo deste trabalho foi avaliar, em experimento de campo, o potencial produtivo, as características das plantas e a qualidade de frutos de novos híbridos deabacaxi resistentes à fusariose: EC-105, EC-93, cv. BRS Vitória e cv. BRS Imperial, comparando o desempenho destes genótipos com as cultivares ‘Pérola’, ‘Smooth Cayenne’ e ‘Gold (MD-2’, suscetíveis à doença. O delineamento experimental foi o em blocos casualizados, com cinco repetições. A cv. BRS Imperial apresenta características importantes de qualidade de fruto, com maiores valores de SS e ratio. A cv. BRS Vitória reúne características favoráveis, como massa de frutos semelhante à da ‘Pérola’, reduzido diâmetro do eixo central do fruto, baixos índices de aderência de mudas “filhote” ao fruto e de tombamento de frutos, e boa produção de mudas aproveitáveis. Os demais híbridos resistentes à fusariose apresentam características negativas que limitam sua recomendação como cultivar comercial.

  20. Estudio de desgaste de recubrimientos duros en una herramienta de arado tipo cincel

    OpenAIRE

    Agudelo Giraldo, Pablo Esaú

    2013-01-01

    Se estudió la resistencia al desgaste de cuatro recubrimientos duros aplicados en una herramienta de arado tipo cincel, comparados con el desgaste de una herramienta comercial. Se planteó un diseño experimental de 1 factor, 5 tratamientos y 12 bloques aleatorizados, con pruebas a escala real, llevadas a cabo en un suelo franco arcilloso. Se usaron dos electrodos de alto cromo y alto carbono (Fe-C-Cr y Fe-C-Cr-Nb), cada uno de ellos, aplicados mediante el proceso FCAW en deposiciones de una y ...

  1. Simulación estocástica de esquemas piramidales tipo Ponzi

    Directory of Open Access Journals (Sweden)

    Lilia Quituisaca-Samaniego

    2013-12-01

    Full Text Available Mediante simulación, se estudian varios casos de fraude provocados por pirámides financieras tipo Ponzi (incluyendo los casos Madoff, DRFE y Cabrera; la técnica empleada corresponde a la implementación computacional de un modelo estocástico diseñado por J. Mayorga-Zambrano. Se comparan datos reales con aquellos generados por el software implementado; en particular, se estudia la evolución del número de clientes, del monto de estafa y del tiempo estimado de duración de la pirámide.

  2. Cuotas de género y tipo de lista en América Latina

    OpenAIRE

    Nélida Archenti; María Inés Tula

    2007-01-01

    Las reformas electorales llevadas a cabo en algunos países de América Latina, a partir de los '90, han producido resultados cuyo análisis es ineludible para la comprensión del acceso de las mujeres a los cargos electivos. En la actualidad, no existe un consenso respecto a cómo afectan los elementos del sistema electoral a la participación política femenina bajo las leyes de cuotas, en particular en lo referente al tipo de lista (bloqueada o desbloqueada) y la magnitud de distrito. Este artícu...

  3. QUALIDADE NUTRICIONAL E ANTIOXIDANTE DO TOMATE “TIPO ITALIANO”

    Directory of Open Access Journals (Sweden)

    C. S. MONTEIRO

    2008-12-01

    Full Text Available

    O tomate híbrido tipo italiano (saladete Lycopersicon esculentum Mill, apresenta baixa caloria, é rico em vitaminas (A e C, sódio, potássio, cálcio, fósforo e ferro. Alguns parâmetros de qualidade são empregados na análise da composição: acidez; sólidos solúveis; teor de açúcar e licopeno; aparência; textura; sabor; tamanho e suculência. O presente trabalho teve como objetivo conhecer a quantidade de compostos fenólicos, composição química do tomate tipo italiano e determinar a atividade antioxidante. Os resultados, em base seca, de tomate tipo italiano sem casca e sem semente e de tomate com casca e com semente apresentaram baixos teores de proteína (2,16%, lipídio (0,26%, fi bra (0,28% e umidade (85,09%. O valor de SST encontrado no tomate sem semente e sem casca e no tomate com semente e com casca foi menor do que encontrado na literatura. O peso unitário médio dos tomates ficou com 101,05g; de diâmetro longitudinal 55,136mm e 81,164mm de diâmetro transversal. A atividade antioxidante no molho está relacionada à concentração de compostos fenólicos. Novos estudos sobre o tomate tipo italiano Lycopersicon esculentum Mill poderão corroborar essas informações, principalmente para efeitos comparativos, visando à padronização de dados da composição química.

  4. Fracturas complejas del radio distal: tratamiento quirúrgico de las fracturas tipo C2

    OpenAIRE

    Arenas Planelles, Antonio; Ortega Arruti, J.A.; Corchuelo Maíllo, C.; Arenas Miquélez, A.; Ortega Sáez, M. (Marta)

    2007-01-01

    Se presentan 73 casos de fractura de radio distal tipo C2 tratadas en nuestro servicio. Se utilizó como método de osteosíntesis una placa palmar en 3 casos, agujas de Kirschner en 38 casos, fijadores externos en 30 y fijador externo + agujas en 2 casos. Los mejores resultados se obtuvieron en los grupos de casos tratados con placa palmar y con agujas + fijador externo. El fijador externo, aplicado de forma aislada, que "a priori" era el mejor sistema de tratamiento, ha resultado al final ser ...

  5. Fracturas del radio distal tipo B3. Tratamiento quirúrgico.

    OpenAIRE

    Arenas Planelles, Antonio; Ortega Arruti, J.A.; Corchuelo Maíllo, C.; Arenas Miquélez, A.; Ortega Sáez, M. (Marta)

    2007-01-01

    Se presentan 67 casos de fractura de radio distal tipo B3 tratadas en nuestro Servicio. Se utilizó como método de osteosíntesis una placa palmar en 30 casos, agujas de Kirschner en 19 casos, fijadores externos en 17 y fijador externo + agujas en 1 caso. Los mejores resultados se obtuvieron en el grupo de casos tratados con placa palmar (90 % de resultados satisfactorios). A total of 67 cases of B3 type fracture of the distal radius treated in our Department are presented. A volar plate ...

  6. Tratamiento quirúrgico en las fracturas del radio distal tipo A3

    OpenAIRE

    Arenas Planelles, Antonio; Ortega Arruti, J.A.; Ortega Sáez, M. (Marta); Arenas Miquélez, A.

    2009-01-01

    Se presentan 44 casos de fractura de radio distal tipo A3 tratadas en nuestro Servicio entre los años 1992 y 2004. Se utilizó como método de osteosíntesis una placa palmar en 7 casos, agujas de Kirschner percutáneas en 14 casos, fijadores externos en 20 y fijador externo + agujas en 3 casos. Los mejores resultados se obtuvieron en el grupo de casos tratados con placa palmar (100 % de resultados satisfactorios). 44 cases of A3 type fracture of the distal radius treated in our Depar...

  7. Operadores Pseudodiferenciales en Clases no Casianalíticas de Tipo Beurling

    OpenAIRE

    Jornet Casanova, David

    2015-01-01

    Los operadores pseudodiferenciales son generalizaciones de los operadores integrales singulares y de los operadores en derivadas parciales con coeficientes variables. A cada operador le corresponde un símbolo, que es una función infinitamente diferenciable y cuyas derivadas parciales cumplen ciertas estimaciones. El próposito es introducir estos operadores en el contexto de las clases no casianalíticas de tipo Beurling, clases que recientemente han recibido mucha atención, por ser más gene...

  8. Electrohilado de nanofibras fotosensibles a partir de biopolímeros tipo elastina

    OpenAIRE

    Muñoz Noriega, Jesús

    2015-01-01

    El presente trabajo consiste en la preparación de superficies recubiertas de nanofibras fotosensibles y monocomponentes, a partir de recombinámeros tipo elastina (ELRs), un material biocompatible, biodegradable, bioactivo, con un comportamiento termosensible y capacidad de autoensamblado, diseñado mediante ingeniería genética. Los ELRs son bioproducidos por crecimiento y fermentación de la bacteria Escherichia coli y modificados químicamente como fenil azidas que aportan el carácter fotose...

  9. Uso de la herramienta Google Trends para estimar la incidencia de enfermedades tipo influenza en Argentina

    OpenAIRE

    Pablo Wenceslao Orellano; Julieta Itatí Reynoso; Julián Antman; Osvaldo Argibay

    2015-01-01

    El objetivo del presente estudio fue hallar un modelo para estimar la incidencia de enfermedades tipo influenza (ETI), a partir de los términos de búsqueda relacionados recolectados por el Google Trends (GT). Los datos de vigilancia de ETI para los años 2012 y 2013 se obtuvieron del Sistema Nacional de Vigilancia de la Salud de Argentina. Las búsquedas de Internet se obtuvieron de la base de datos del GT, usando 6 términos: gripe, fiebre, tos, dolor de garganta, paracetamol e ibuprofeno. Se d...

  10. RADIOEMISSÕES SOLARES TIPO II ASSOCIADAS A FLARES E CMES

    Directory of Open Access Journals (Sweden)

    Rafael Douglas Cunha-Silva

    2013-12-01

    Full Text Available Atribuídas a ondas de choque e a ejeções de plasmoide, as emissões solares tipo II são ondaseletromagnéticas geradas a partir de oscilações do plasma coronal. A origem dos choques associados a essasemissões é ainda uma questão em aberto da física solar. Enquanto alguns trabalhos sugerem os flares solarescomo seus acionadores, outros fornecem indícios de serem as ejeções de massa coronal (CMEs sua origemmais provável. Este trabalho apresenta os resultados da análise de duas emissões tipo II, registradas por doisespectrômetros da rede e-CALLISTO (extended-Compound Astronomical Low-cost Low-frequency Instrument forSpectroscopy and Transportable Observatory, os quais operam na faixa de frequências de 45-870 MHz. Oprimeiro evento, observado em 13 de junho de 2010, às 05:38 UT, apresentou uma taxa de deriva em frequênciade -0,2 MHz s-1, correspondente a uma velocidade de choque de 528 km s-1, estando, temporalmente, associadoa uma CME lenta (~320 km s-1 e a um flare solar em raios-X, classe M1.0. O segundo evento, observado em 09de Agosto de 2011, às 08:02 UT, apresentou uma taxa de deriva em frequência de -1,4 MHz s-1, correspondentea uma velocidade de choque de 1375 km s-1, estando, temporalmente, associado a uma CME tipo halo (~1610km s-1 e a um flare solar em raios-X, classe X6.9. Os resultados obtidos, para os parâmetros observacionais dasemissões tipo II e para os parâmetros físicos de suas fontes, são discutidos no contexto de sua relação com seuflares e CMEs associados.

  11. Presencia de afecciones oftalmológicas en pacientes con diabetes mellitus tipo 2

    OpenAIRE

    Bárbara Suárez Rodríguez; María Adela Llull Tombo; Mariela Julia Curbelo Gómez; Leonor Díaz Alfonso; Anay Martínez Díaz

    2011-01-01

    Fundamento: la diabetes mellitus es un importante problema de salud a nivel mundial, por ser una de las afecciones no transmisibles más frecuentes, así como por la severidad y diversidad de sus complicaciones crónicas, que incluyen al órgano de la visión. Objetivo: identificar la presencia de afecciones oftalmológicas en pacientes con diabetes mellitus tipo 2. Métodos: estudio descriptivo de serie de casos realizado en el Centro de Atención y Educación al Diabético, de Cienfuegos, en el perío...

  12. Estudio de la respuesta autoreactiva de linfocitos B anti-periferina en la diabetes tipo I

    OpenAIRE

    Garabatos Leitón, Mª Nahir

    2014-01-01

    [spa] La diabetes tipo 1 (DT1) es una enfermedad de origen multifactorial, caracterizada por la destrucción selectiva de células ß productoras de insulina localizadas en los islotes pancreáticos. Estudios realizados en el modelo de ratón NOD, han revelado que la respuesta autoinmune en esta enfermedad está dirigida principalmente por poblaciones autoreactivas de linfocitos T CD4 y CD8 infiltrantes de islote. Durante muchos años, el papel de los linfocitos B en la DT1 ha sido relegado a un ...

  13. ¿Conviene flexibilizar el tipo de cambio para mejorar la competitividad?

    OpenAIRE

    Guadalupe Mántey

    2013-01-01

    En este artículo se investigan los efectos de una devaluación cambiaria en la dinámica exportadora de los países en desarrollo. En oposición a la teoría convencional, se muestra que el efecto negativo de esa medida en las hojas de balance de las empresas exportadoras, por su elevada dolarización de pasivos, anula la posible ganancia en competitividad. Con base en los resultados de la investigación empírica, se argumenta que el establecimiento de un tipo de cambio real competitivo y estable, p...

  14. Prevalencia de ansiedad y depresión en las personas con diabetes mellitus tipo 2

    OpenAIRE

    Valentina Rivas-Acuña; Herminia García-Barjau; Aralucy Cruz-León; Fabiola Morales-Ramón; Rosa María Enríquez-Martínez; Josefina Román-Alvarez

    2011-01-01

    Introducción. La Diabetes Mellitus tipo 2, es una enfermedad metabólica, crónica, que origina la alteración concomitante principalmente en utilización de proteína y grasas. El diagnóstico y tratamiento conllevan a originar estados emocionales como la ansiedad y la depresión en la mayoría de las personas con este padecimiento, principalmente para adaptarse responsablemente a un estilo de vida saludable poco acostumbrado. Objetivo. Identificar los niveles de ansiedad y depresión en los paciente...

  15. Aspectos de la parataxis en textos periodísticos de tipo expositivo-argumentativo

    OpenAIRE

    Marimón Llorca, Carmen; Martínez Linares, María Antonia

    2006-01-01

    Suele admitirse en los estudios lingüísticos, que además de su papel como conjunción, y desempeña también una función conectiva en el marco del discurso. Es habitual, en efecto, hacer referencia a estas propiedades cuando se analizan mecanismos discursivos como la coherencia y la cohesión de textos narrativos y descriptivos, pero lo que es menos frecuente es detenerse en los efectos de sentido de y cuando desempeña dicha función en otro tipo de enunciados. El objetivo de este artículo es, pre...

  16. Desarrollo de bebida láctea tipo yogur con edulcorante no calórico

    OpenAIRE

    Vélez Arias, Lina Consuelo

    2002-01-01

    El principal objetivo de este trabajo es obtener una bebida láctea tipo yogur, usando un sustituto de sacarosa, para obtener un producto con un bajo aporte calórico, al mismo tiempo que los beneficios de un producto natural a base de leche. El trabajo se desarrolló en dos etapas: la primera para determinar el mejor edulcorante para sustituir la sacarosa; y la segunda, una producción en planta piloto para hacer el seguimiento del producto. En ambas etapas, se partió de una leche semidescremada...

  17. Variables predictoras de las conductas de autocuidado en las personas con diabetes tipo 2

    OpenAIRE

    Merchán Felipe, María de las Nieves

    2014-01-01

    Objetivo general: - Conocer la prevalencia de déficit de conductas de autocuidado en la población adulta con diabetes tipo 2 (DMT2) del área de salud de Cáceres y determinar los factores o variables asociados a dicho déficit. Objetivos específicos: - Describir el nivel de autocuidado de las personas adultas con DMT2 en relación con la alimentación, ejercicio, cuidado de los pies, control de la glucemia, tratamiento farmacológico, y asistencia a las consultas para su control, a partir de las f...

  18. Efectos de la entrevista motivacional en el tratamiento de la diabetes mellitus tipo 2

    OpenAIRE

    García Flores, Raquel; Universidad Nacional Autónoma de México; Sánchez Sosa, Juan José; Universidad Nacional Autónoma de México

    2013-01-01

    El objetivo del presente estudio fue evaluar los efectos de la entrevista motivacional en conjunto con una intervención cognitivo-conductual grupal. Participaron 25 pacientes con diagnóstico de dia-betes mellitus tipo 2 de una institución de salud pública. Los pacientes fueron distribuidos de manera intencional en dos grupos: uno que incluye una sesión de entrevista motivacional individual y el otro una sesión educativa individual. Ambas sesiones se realizaron antes y después de ingresar al t...

  19. Neurofibromatosis tipo 2: La historia de Lidia Neurofibromatosis type 2: Life story of Lidia

    OpenAIRE

    Ares Solanes; Conxi Lázaro; Elisabeth Castellanos; Eduard Serra; Ignacio Blanco

    2012-01-01

    La Neurofibromatosis tipo 2 (NF2) es una enfermedad minoritaria hereditaria caracterizada por la presentación progresiva de múltiples tumores, especialmente Schwanomas Vestibulares Bilaterales, a partir de la segunda década de vida. Su tratamiento con cirugía o radioterapia no evita la pérdida de audición. El pronóstico es complicado y los pacientes deben enfrentarse al progresivo deterioro de su calidad de vida. Un estudio cualitativo a través de la historia de vida de nuestra informante cla...

  20. Cariótipo Fetal em Líquido Pleural Obtido por Toracocentese

    OpenAIRE

    Cabral Antonio Carlos Vieira; Machado Isabela Nelly; Leite Henrique Vitor; Pereira Alamanda Kfoury; Vitral Zilma Nogueira Reis

    2001-01-01

    Objetivos: avaliar a efetividade da realização de cariótipo em líquido pleural obtido por toracocentese de um grupo de fetos portadores de derrame pleural. Métodos: foram avaliados 15 fetos com derrame pleural uni ou bilateral nos quais se realizou uma punção da cavidade torácica. A idade gestacional variou entre 19 e 34 semanas. Os fetos foram estudados com ultra-sonografia morfológica para determinar a presença de anomalias associadas. Nos casos em que não se obteve o cultivo em líquido ple...

  1. Schwannoma de nervio mediano en un paciente con neurofibromatosis tipo I

    OpenAIRE

    Romana Ramos-Cárdenas; Ruth Ivonne Acevedo-Estrada; Erick Frank Pineda-Villafuerte

    2014-01-01

    Los tumores neurales periféricos en mano son el 1% de todos los tu - mores. Son benignos y de dos tipos: 1) schwannoma o neurilemoma y 2) neurofibromas. Los schwannomas son tumores benignos encapsu - lados, ovoides, firmes, de crecimiento lento, solitario, asociados o no con una enfermedad neurológica. Se originan de células de Schwann del neurilema de nervios periféricos. Suelen presentarse entre los 30 y 60 años de edad, sin predominio de género o raza; 45% se encuentra en la cabeza/cuello,...

  2. Tipo e grau de parasitismo em poldros estabulados de raça lusitana

    OpenAIRE

    Ferreirinha, Dario; Jorge, H.; Agrícola, R.; Fernanda ROSA; Crespo, Maria Virgínia

    2004-01-01

    Este trabalho teve como objectivo a determinação do tipo e do grau de parasitismo presentes em poldros (Puro Sangue Lusitano), com idades compreendidas entre os oito e os 12 meses, durante o período de Janeiro a Maio de 2002. Para tal, utilizaram-se 16 animais em regime estabulado, com igual maneio alimentar. Quinzenalmente, efectuaram-se colheitas indirectas de fezes para posteriores análises coprológicas, qualitativas e coproculturas. Nas análises coprológicas realizadas, registou-se a p...

  3. El tipo de administración desleal en el Derecho penal alemán

    OpenAIRE

    Rojas A, Luis Emilio

    2009-01-01

    En lugar de intentar un crítica puramente político criminal, el artículo analiza dogmáticamente el tipo de administración desleal § 266 StGB. Para ello, se tematiza la relación entre patrimonio e interés patrimonial, lo cual supone una breve discusión sobre el concepto de patrimonio. El injusto de acción de la administración desleal se constituye fundamentalmente por la infracción del deber. Ello se sigue del análisis de las diferentes posiciones en torno al significado del deber ...

  4. NEUROFIBROMATOSIS TIPO 1: UNA ENTIDAD FASCINANTE. REPORTE DE 4 CASOS Y REVISION DE LA LITERATURA.

    OpenAIRE

    Frank Quezada S.; Freddy Paredes C.; Rodrigo Candia Ch.; Pablo Santana B.; Dr. Joaquín García G.

    2007-01-01

    La Neurofibromatosis es una alteración neurocutánea común queincluye diferentes formas. La Neurofibromatosis tipo 1 (NF1),también conocida como enfermedad de Von Recklinghausen enhonor al patólogo alemán Friedrich von Recklinghausen (1833-1910) quién la describió por primera vez, afecta aproximadamentea una de cada 2600 a 3000 personas (1), siendo responsable deaproximadamente el 85% de todos los casos de neurofibromatosis.Es heredada con un patrón autosómico dominante con unatasa de mutacion...

  5. Evaluación de rendimiento de compuestos de ajo tipo Taiwán

    OpenAIRE

    Luis Pérez Moreno; Martha Juana Navarro León; Briseida Mendoza Celedón; Rafael Ramírez Malagón

    2010-01-01

    Se evaluó el rendimiento y variables de calidad de compuestos de ajo (Allium sativum L.), durante el ciclo otoño-invierno 2008-2009, en San Luis de la Paz, Gto., México. Se emplearon compuestos de ajo del tipo Taiwán, con resultados variables de acuerdo a su genotipo. Entre los compuestos sobresalieron por su altura de planta, rendimiento de bulbo, mayor peso promedio de bulbo y menor número de dientes por bulbo los siguientes: el Compuesto 4 (El pato, bodegas, Salamanca, Gto.), el Compuesto ...

  6. PREJUÍZOS COGNITIVOS EM IDOSOS COM DIABETES MELLITUS TIPO 2

    OpenAIRE

    Regina Maria Fernandes Lopes; Irani I. de Lima Argimon

    2009-01-01

    El avance en las condiciones de salud propicia el progresivo aumento de la esperanza de vida. Estudios han identificado la existencia de una conexión entre la Diabetes Mellitus (DM) y demencia. La hiperglicemia podría ser un factor importante en la incidencia de la enfermedad de Azheimer, la cual puede ser una causa secundaria de demencia. La diabetes mellitus tipo 2 (DM2) está asociada con déficits cognitivos y funcionales, y el WCST es una de las herramientas que puede ser utilizada para ev...

  7. Efecto incretina en el tratamiento de la diabetes mellitus tipo 2

    OpenAIRE

    Manuel de Jesús Díaz Pérez; Jorge Luís Hernández Alfonso; Yareanna Del Rosario Vega

    2015-01-01

    El efecto incretina está dado por las funciones del polipéptido insulinotrópico dependiente de glucosa y un péptido similar a glucagón sobre la hiperglucemia en el organismo humano. Desde su descubrimiento ha cobrado un papel cada vez más significativo en la elaboración de nuevos fármacos normoglucemiantes, que logren el control metabólico de los pacientes con diabetes mellitus tipo 2. El objetivo de esta revisión es actualizar la información sobre el efecto incretina, su relación con la diab...

  8. El automanejo de los pacientes con diabetes tipo 2: una revisión narrativa

    OpenAIRE

    N. Campo Guinea; Portillo, M.C.

    2013-01-01

    Según la Organización Mundial de la Salud para el año 2030 la cifra de personas con diabetes mellitus alcanzará valores cercanos a 366 millones en el mundo, ocupando su mayor proporción la diabetes mellitus tipo 2. Las estrategias actuales de Cronicidad y de la Diabetes presentes en España abogan por un adecuado automanejo del paciente por medio de programas y/o intervenciones apropiadas para ello. Sin embargo, existen unos conocimientos y actitudes inadecuadas que limitan la asociación pacie...

  9. Enfermedad tipo influenza en el Hospital Pediátrico de Moa. Enero-agosto 2010

    OpenAIRE

    Luis Angel Osorio Góngora; Noralis Concepción RodrÍguez; Edelmis Pérez Salomón; Dianeyis Silot Oliveros; Ailen Rodríguez Díaz

    2013-01-01

    Fundamento: La enfermedad respiratoria producida por el virus de influenza A H1N1, constituyó la primera pandemia de influenza del siglo XXI, provocando gran morbilidad y miles de fallecidos, los daños no fueron mayores gracias a que el virus no mutó a formas más letales, no se desarrolló resistencia al Oseltamivir y la vacuna tuvo una buena compatibilidad con los virus circulantes. Objetivo: Caracterizar los pacientes ingresados por enfermedad tipo influenza (ETI) en el Hospital Pediátrico U...

  10. Desarrollo de una aplicación Android de tipo quiz

    OpenAIRE

    Faro García, Daniel

    2014-01-01

    Enero-Febrero 2014 La idea de desarrollar una aplicación para dispositivos Android de tipo quiz surge a partir de dos realidades de la vida cotidiana: El auge de los móviles como un dispositivo multimedia que ha adquirido una dimensión universal y la de los videojuegos, un fenómeno imparable entre la juventud de hoy en día. De la unión de estos dos puntos, cuya finalidad es generar conocimiento, aparece este proyecto, que intenta de forma ágil, innovadora y divertid...

  11. Adesão de pessoas com diabetes mellitus tipo 2 ao tratamento medicamentoso

    OpenAIRE

    2014-01-01

    Estudo seccional de abordagem quantitativa que objetivou avaliar a adesão ao tratamento medicamentoso entre pessoas com diabetes mellitus, e sua relação com variáveis clínicas, de tratamento e controle metabólico. A amostra constituiu-se de 162 pessoas com diabetes mellitus tipo 2 em seguimento ambulatorial. Para a coleta dos dados, foram utilizadas a Medida de Adesão aos Tratamentos e a consulta aos prontuários dos participantes. Obteve-se elevada adesão ao tratamento medicamentoso. Para um ...

  12. Resistência de genótipos de tomateiro ao ácaro rajado

    OpenAIRE

    Maruyama Wilson Itamar; Toscano Luciana Cláudia; Boiça Júnior Arlindo L.; Barbosa José Carlos

    2002-01-01

    Avaliou-se a resistência de genótipos de tomateiro selvagens [Lycopersicon pennellii (LA 716), L. hirsutum var. glabratum (PI 126449, PI 134417), L. hirsutum (PI 127826, PI 127827), L. peruvianum (CGO 6707), L. peruvianum var. dentatum (WYR 2020, LA 111), L. peruvianum var. glandulosum (LA 1113-1, LA 1113-2)] e comerciais [(L. esculentum) Gem Pride, Santa Clara, e híbridos Bruna VFN, Carmem, Fortaleza, Débora Plus VFN] ao ácaro rajado (Tetranychus urticae). O número médio de ovos, fases imatu...

  13. Los nuevos tipos de publicidad y su influencia en el consumidor

    OpenAIRE

    Hernández Lobato, Julio

    2014-01-01

    Con este trabajo de fin de grado se ha pretendido demostrar que los tipos de publicidad modernos son más efectivos que la publicidad convencional, ante la cual el espectador ha desarrollado una coraza y ya los métodos clásicos de comunicación comercial son incapaces de convencer al consumidor actual tal y como lo han venido haciendo. A fin de demostrar la hipótesis planteada se llevó a cabo una investigación empírica con un grupo de sujetos a los que se les realizó un cuestionario online....

  14. Tipos de personalidad del mexicano: Desarrollo y validación de una escala

    OpenAIRE

    Cruz Martínez,Luz María; Rivera Aragón,Sofía; Díaz Loving, Rolando; Taracena Ruíz,Bertha Elvia

    2013-01-01

    La investigación ha tratado de identificar la existencia de rasgos universales personalidad, la investigación etnopsicológica ha buscado identificar las cualidades típicas de personalidad de los miembros de diferentes grupos socio culturales; aunque sin acordar cuáles son, ni su relación con los modelos generales como el de los Cinco Grandes. Esta investigación consistió en identificar y describir los tipos de personalidad del mexicano propuestos por Díaz Guerrero (1997). Se realizaron dos es...

  15. Tipos de demostración de estudiantes del grado 10º en Santander (Colombia)

    OpenAIRE

    Fiallo, Enrique; Gutiérrez, Ángel

    2007-01-01

    Presentamos los resultados cualitativos y cuantitativos de una evaluación diagnóstica aplicada a tres grupos de estudiantes de 10o grado de bachillerato (14-16 años) de tres instituciones de Santander (Colombia), cuyo objetivo apuntaba a indagar y analizar los tipos de demostraciones que realizan los estudiantes al inicio del curso. Los datos, además, nos permitieron sacar algunas conclusiones acerca de su comprensión de la demostración.

  16. Fibras de celulosa aditivadas para mezclas tipo SMA con propiedades mejoradas

    OpenAIRE

    Lanchas, Santiago; Núñez, Ruy; Costa, Andrés; Loma, Javier; Cervantes, Rocío; Hidalgo, María Elena; Hergueta, José Antonio; Sánchez, Fernando; Rubio, Baltasar; Jiménez, Rafael; Pérez Jiménez, Félix Edmundo; Botella Nieto, Ramón; Expósito, Santiago; Fernández, Victoriano; Potti, Juan José

    2013-01-01

    Las mezclas bituminosas tipo SMA, recogidas en la norma UNE EN 13108-5, ofrecen grandes posibilidades para aumentar la vida útil de las capas del firme, principalmente las de rodadura e intermedia, contribuyendo así a la reducción de costes en el ciclo de vida de la estructura portante de la carretera. El proyecto Mezclas SMA de la familia de la norma UNE EN 13108-5 que sean Sostenibles, Medioambientalmente Amigables (Proyecto SMA, Financiado por el Centro Tecnológico para el Desarro...

  17. Tipo de parto : expectativas, experiências, dor e satisfação

    OpenAIRE

    Raquel A. Costa; Figueiredo, Bárbara; Pacheco, Alexandra P.; Pais, A.

    2003-01-01

    O estudo que apresentamos neste artigo teve como principal objectivo explorar a influência do tipo de parto - eutócito, por cesariana, com analgesia epidural, com analgesia geral - na experiência de parto da mulher, atendendo em particular à confirmação de expectativas, à satifação e à dor durante o trabalho de parto, parto e pós-parto imediato. Para esse efeito, o Questionário de Experiência e Satisfação com o Parto (QESP, Figueiredo, Pacheco & Costa, 2002) foi administrado nos primeiros ...

  18. Estudio de pre-factibilidad para comercializar iluminación tipo led

    OpenAIRE

    Angarita Díaz, Magally; Aristizábal Alarcón, Camilo; Palacios Martínez, Andrés

    2012-01-01

    En este trabajo de investigación realizaremos un estudio de PRE-factibilidad para comercializar iluminación tipo LED en el sector industrial para PYMES en Bogotá, donde su facturación de consumo de energía sea superior a tres millones de pesos colombianos. En la investigación que desarrollaremos vamos a incluir análisis de competidores, consumidores, precios actuales en el mercado, segmento, mercado objetivo, mercado futuro, comparativo con otras marcas dentro y fuera del nicho de mercado. ...

  19. APLICACIÓN DE LA TECNICA DE IV GAMA PARA LA ELABORACIÓN DE ENSALADAS EVALUATION OF IV GAMA TECHNIQUE TO PREPARE VEGETABLE SALADS

    Directory of Open Access Journals (Sweden)

    Auris Damely García Méndez

    2008-12-01

    Full Text Available El propósito de la aplicación de la técnica de IV Gama en la elaboración de ensaladas listas para el consumo fresco, esta dirigido al control del deterioro en lechuga americana (Lactuca sativa, zanahoria (Daucus carota L., radicchio (Cichorium intybus L. y escarola (Cichorium endivia L., destinadas a preparar ensaladas tipo “Mediterránea y Cheff”. La metodología permitió seleccionar y evaluar la técnica de IV Gama, así como las buenas prácticas de manufactura para extender la vida comercial de las ensaladas y garantizar la seguridad alimentaria para la población potencialmente consumidora. La aplicación combinada de soluciones de cloruro de calcio al 1%, acido cítrico a 0,1% y oxido de magnesio al 0,5% contribuyo a mantener la calidad de las ensaladas por un período de 16 días bajo refrigeración a 5 + 1 °C y 95 + 5% HR. En conclusión las técnicas ensayadas, posibilitaron extender el valor comercial de estos productos.The purpose of applying the fresh-cut technique in preparing vegetable salads ready for fresh consumption, was aimed to control the damage American lettuce (Lactuca sativa; carrot (Daucus carota L; Radicchio (Cichorium intybus L and endive (Cichorium endivia L.“ Mediterranean and Cheff” style salads were prepared for evaluation. The methodology allowed selecting and evaluating fresh-cut technique as well as good manufacturing practices, to extend the commercial life, and guarantee alimentary food safety to people. Use of 1% calcium chloride; 0.1% citric acid and 0.5% magnesium oxide solutions; allowed to maintain the quality of the salads for a period of 16 up to days, under refrigeration at 5± 1ºC and 95 ± 5 % RH. Finally the assays techniques let to extend the commercial value of these vegetables.

  20. 12 CFR 204.125 - Foreign, international, and supranational entities referred to in §§ 204.2(c)(1)(iv)(E) and 204.8...

    Science.gov (United States)

    2010-01-01

    ....2(c)(1)(iv)(E) and 204.8(a)(2)(i)(B)(5) are: Europe Bank for International Settlements. European Atomic Energy Community. European Central Bank. European Coal and Steel Community. The European Communities. European Development Fund. European Economic Community. European Free Trade Association....

  1. New mono-organotin (IV) dithiocarbamate complexes

    Energy Technology Data Exchange (ETDEWEB)

    Muthalib, Amirah Faizah Abdul; Baba, Ibrahim [School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi (Malaysia)

    2014-09-03

    Eighteen new mono-organotin dithiocarbamate compounds derived each nine from methyltin(IV) and phenyltin(IV) reacted using in-situ method with various type of N-dialkylamine together with carbon disulphide with the ratio of 1:3:3. Elemental and gravimetric analysis showed that the general formula of these compounds were RSnCl[S{sub 2}CNR′R″]{sub 2} (R= Ph, CH{sub 3}, R′ = CH{sub 3}, C{sub 2}H{sub 5}, C{sub 7}H{sub 7} and R″ = C{sub 2}H{sub 5}, C{sub 6}H{sub 11}, iC{sub 3}H{sub 7}, C{sub 7}H{sub 7}). These compounds had been characterized by infrared spectroscopy, ultraviolet spectroscopy, {sup 1}H, {sup 13}C NMR spectroscopy and single crystal X-ray crystallography. The infrared spectra of these compounds showed three important peaks indicating the formation of dithiocarbamate compounds, ν(CN), ν(CS) and ν(Sn-S) band which present in the region of 1444–1519, 954–1098 and 318–349 cm{sup −1} respectively. The ultraviolet-visible spectra showed an absorption band for the π - π* transition of NCS group in the range of 253 – 259 nm due to the intramolecular charge transfer of the ligand. The {sup 13}C NMR spectra showed an important shift for δ(N{sup 13}CS{sub 2}) in the range of 196.8 – 201.9 ppm.. Single crystal X-ray diffraction studies showed three new structures with the general formula of PhSnCl[S{sub 2}CN(Et)(i−Pr)]{sub 2}, MeSnCl[S{sub 2}CN(Me)(Cy)]{sub 2} and MeSnCl[S{sub 2}CN(i−Pr)(CH{sub 2}Ph)]{sub 2}. All structures having a distorted octahedral geometry set by CClS{sub 4} donor atom from the two

  2. Cellular origins of type IV collagen networks in developing glomeruli.

    Science.gov (United States)

    Abrahamson, Dale R; Hudson, Billy G; Stroganova, Larysa; Borza, Dorin-Bogdan; St John, Patricia L

    2009-07-01

    Laminin and type IV collagen composition of the glomerular basement membrane changes during glomerular development and maturation. Although it is known that both glomerular endothelial cells and podocytes produce different laminin isoforms at the appropriate stages of development, the cellular origins for the different type IV collagen heterotrimers that appear during development are unknown. Here, immunoelectron microscopy demonstrated that endothelial cells, mesangial cells, and podocytes of immature glomeruli synthesize collagen alpha 1 alpha 2 alpha1(IV). However, intracellular labeling revealed that podocytes, but not endothelial or mesangial cells, contain collagen alpha 3 alpha 4 alpha 5(IV). To evaluate the origins of collagen IV further, we transplanted embryonic kidneys from Col4a3-null mutants (Alport mice) into kidneys of newborn, wildtype mice. Hybrid glomeruli within grafts containing numerous host-derived, wildtype endothelial cells never expressed collagen alpha 3 alpha 4 alpha 5(IV). Finally, confocal microscopy of glomeruli from infant Alport mice that had been dually labeled with anti-collagen alpha 5(IV) and the podocyte marker anti-GLEPP1 showed immunolabeling exclusively within podocytes. Together, these results indicate that collagen alpha 3 alpha 4 alpha 5(IV) originates solely from podocytes; therefore, glomerular Alport disease is a genetic defect that manifests specifically within this cell type. PMID:19423686

  3. Type IV renal tubular acidosis associated with Alport's syndrome.

    OpenAIRE

    Tkácová, R.; Roland, R.; Böör, A.; Kovácová, A.; Lazúrová, I.; Tkác, I.; Hildebrand, T.; Sefara, P.

    1993-01-01

    A case of hereditary nephritis with mild reduction of renal function associated with renal tubular acidosis type IV is described. The patient was admitted with life-threatening hyperkalaemia. To our knowledge, type IV renal tubular acidosis has not been reported previously in association with Alport's syndrome in an adult patient.

  4. Maize RNA polymerase IV defines trans-generational epigenetic variation.

    Science.gov (United States)

    Erhard, Karl F; Parkinson, Susan E; Gross, Stephen M; Barbour, Joy-El R; Lim, Jana P; Hollick, Jay B

    2013-03-01

    The maize (Zea mays) RNA Polymerase IV (Pol IV) largest subunit, RNA Polymerase D1 (RPD1 or NRPD1), is required for facilitating paramutations, restricting expression patterns of genes required for normal development, and generating small interfering RNA (siRNAs). Despite this expanded role for maize Pol IV relative to Arabidopsis thaliana, neither the general characteristics of Pol IV-regulated haplotypes, nor their prevalence, are known. Here, we show that specific haplotypes of the purple plant1 locus, encoding an anthocyanin pigment regulator, acquire and retain an expanded expression domain following transmission from siRNA biogenesis mutants. This conditioned expression pattern is progressively enhanced over generations in Pol IV mutants and then remains heritable after restoration of Pol IV function. This unusual genetic behavior is associated with promoter-proximal transposon fragments but is independent of sequences required for paramutation. These results indicate that trans-generational Pol IV action defines the expression patterns of haplotypes using co-opted transposon-derived sequences as regulatory elements. Our results provide a molecular framework for the concept that induced changes to the heterochromatic component of the genome are coincident with heritable changes in gene regulation. Alterations of this Pol IV-based regulatory system can generate potentially desirable and adaptive traits for selection to act upon. PMID:23512852

  5. Equilibrium between Different Coordination Geometries in Oxidovanadium(IV) Complexes

    Science.gov (United States)

    Ugone, Valeria; Garribba, Eugenio; Micera, Giovanni; Sanna, Daniele

    2015-01-01

    In this laboratory activity, the equilibrium between square pyramidal and octahedral V(IV)O[superscript 2+] complexes is described. We propose a set of experiments to synthesize and characterize two types of V(IV)O[superscript 2+] complexes. The experiment allows great flexibility and may be effectively used at a variety of levels and the activity…

  6. 30 CFR 57.22226 - Testing for methane (IV mines).

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Testing for methane (IV mines). 57.22226... Standards for Methane in Metal and Nonmetal Mines Ventilation § 57.22226 Testing for methane (IV mines). Tests for methane shall be conducted in the mine atmosphere by a competent person— (a) At least...

  7. CDDIS Data Center Summary for the IVS 2012 Annual Report

    Science.gov (United States)

    Noll, Carey

    2013-01-01

    This report summarizes activities during 2012 and future plans of the Crustal Dynamics Data Information System (CDDIS) with respect to the International VLBI Service for Geodesy and Astrometry (IVS). Included in this report are background information about the CDDIS, the computer architecture, staff supporting the system, archive contents, and future plans for the CDDIS within the IVS.

  8. CDDIS Data Center Summary for the 2003 IVS Annual Report

    Science.gov (United States)

    Noll, Carey

    2004-01-01

    This report summarizes activities during the year 2003 and future plans of the Crustal Dynamics Data Information System (CDDIS) with respect to the International VLBI Service for Geodesy and Astrometry (IVS). Included in this report are background information about the CDDIS, the computer architecture, staffing supporting the system, archive contents, and future plans for the CDDIS within the IVS.

  9. CDDIS Data Center Summary for the 2004 IVS Annual Report

    Science.gov (United States)

    Noll, Carey

    2005-01-01

    This report summarizes activities during the year 2004 and future plans of the Crustal Dynamics Data Information System (CDDIS) with respect to the International VLBI service for Geodesy and Astrometry (IVS). Included in this report are background information about the CDDIS, the computer architecture, staffing the support system, archive contents, and future plans for the CDDIS within the IVS.

  10. 77 FR 64398 - Order of Succession for HUD Region IV

    Science.gov (United States)

    2012-10-19

    ... URBAN DEVELOPMENT Order of Succession for HUD Region IV AGENCY: Office of Field Policy and Management, HUD. ACTION: Notice of Order of Succession. SUMMARY: In this notice, the Assistant Deputy Secretary... Succession for the Atlanta Regional Office and its Field Offices (Region IV). This Order of...

  11. Policy-induced market introduction of generation IV reactor systems

    International Nuclear Information System (INIS)

    Almost ten years ago the US Department of Energy started the Generation IV initiative with nine other national governments with a positive ground attitude towards nuclear energy. Some of these Generation IV systems, like the fast reactors, are nearing the demonstration stage. The question on how their market introduction will be implemented becomes increasingly urgent. (orig.)

  12. CENTRAL ASIA'S POWER DILEMMAS

    OpenAIRE

    Budkin, Viktor

    2006-01-01

    It turned out to be much harder to create new power structures in Central Asia than elsewhere in the post-socialist world: no matter how hard it was for the Central European countries to acquire new political institutions, their advance toward the Western democratic model was much smoother. In the European part of the post-Soviet geopolitical expanse, Russia, Ukraine, and Moldova experienced fewer problems than the Central Asian region (CAR for short), though they too had their share of contr...

  13. Solubility of Zr(IV), Th(IV) and Pu(IV) hydrous oxides in CaCl2 solutions and the formation of ternary Ca-M(IV)-OH complexes

    International Nuclear Information System (INIS)

    The solubility of Zr(IV), Th(IV) and Pu(IV) hydrous oxides is investigated at 22 ± 2 C in alkaline 0.1-4.5 M CaCl2 solutions. Further studies are performed with Zr(IV) over the entire pH range in NaCl and CaCl2 media, and with Zr(IV) and Th(IV) in alkaline Ca(ClO4)2 solutions. The comparison of Zr(IV) data in different ionic media (NaCl, NaClO4, CaCl2 and Ca(ClO4)2) of similar ionic strength shows that the solubility in the acidic and neutral pH range is not affected by strong interactions between the aqueous M(IV) species and the medium ions. However, in alkaline CaCl2 and Ca(ClO4)2 solutions the formation of ternary Ca-M(IV)-OH complexes causes unexpectedly high solubilities of Zr(IV) at pHc4 = 10-12 and [Ca2+] > 0.05 M and of Th(IV) at pHc = 11-12 and [Ca2+] > 0.5 M. The dependence of the Zr(IV) and Th(IV) solubilities on the H+ and CaCl2 concentrations shows that the complexes Zr(OH)62- and Th(OH)84- with an unusual large number of OH- ligands are stabilized by the formation of associates or ion pairs with Ca2+ ions. The SIT is used to derive equilibrium constants at zero ionic strength for the complexes Zr(OH)62- (in calcium-free solutions), Ca2[Zr(OH)6]2+, Ca3[Zr(OH)6]4+ and Ca4[Th(OH)8]4+. In analogous studies with Pu(IV) hydrous oxide, the solubility increasing effect of ternary complex formation with Ca2+ ions is only observed at CaCl2 concentrations above 2 M. (orig.)

  14. Relating binary-star planetary systems to central configurations

    CERN Document Server

    Veras, Dimitri

    2016-01-01

    Binary-star exoplanetary systems are now known to be common, for both wide and close binaries. However, their orbital evolution is generally unsolvable. Special cases of the N-body problem which are in fact completely solvable include dynamical architectures known as central configurations. Here, I utilize recent advances in our knowledge of central configurations to assess the plausibility of linking them to coplanar exoplanetary binary systems. By simply restricting constituent masses to be within stellar or substellar ranges characteristic of planetary systems, I find that (i) this constraint reduces by over 90 per cent the phase space in which central configurations may occur, (ii) both equal-mass and unequal-mass binary stars admit central configurations, (iii) these configurations effectively represent different geometrical extensions of the Sun-Jupiter-Trojan-like architecture, (iv) deviations from these geometries are no greater than ten degrees, and (v) the deviation increases as the substellar masse...

  15. LSPRAY-IV: A Lagrangian Spray Module

    Science.gov (United States)

    Raju, M. S.

    2012-01-01

    LSPRAY-IV is a Lagrangian spray solver developed for application with parallel computing and unstructured grids. It is designed to be massively parallel and could easily be coupled with any existing gas-phase flow and/or Monte Carlo Probability Density Function (PDF) solvers. The solver accommodates the use of an unstructured mesh with mixed elements of either triangular, quadrilateral, and/or tetrahedral type for the gas flow grid representation. It is mainly designed to predict the flow, thermal and transport properties of a rapidly vaporizing spray. Some important research areas covered as a part of the code development are: (1) the extension of combined CFD/scalar-Monte- Carlo-PDF method to spray modeling, (2) the multi-component liquid spray modeling, and (3) the assessment of various atomization models used in spray calculations. The current version contains the extension to the modeling of superheated sprays. The manual provides the user with an understanding of various models involved in the spray formulation, its code structure and solution algorithm, and various other issues related to parallelization and its coupling with other solvers.

  16. KENO-IV code benchmark calculation, (4)

    International Nuclear Information System (INIS)

    A series of benchmark tests has been undertaken in JAERI in order to examine the capability of JAERI's criticality safety evaluation system consisting of the Monte Carlo calculation code KENO-IV and the newly developed multi-group constants library MGCL. The present paper describes the results of a test using criticality experiments about slab-cylinder system of uranium nitrate solution. In all, 128 cases of experiments have been calculated for the slab-cylinder configuration with and without plexiglass reflector, having the various critical parameters such as the number of cylinders and height of the uranium nitrate solution. It is shown among several important results that the code and library gives a fairly good multiplication factor, that is, k sub(eff) -- 1.0 for heavily reflected cases, whereas k sub(eff) -- 0.91 for the unreflected ones. This suggests the necessity of more advanced treatment of the criticality calculation for the system where neutrons can easily leak out during slowing down process. (author)

  17. Banco Central de Costa Rica

    Directory of Open Access Journals (Sweden)

    Sauter, Franz

    1963-06-01

    Full Text Available This new building is intended to house the various services of the Central Bank of Costa Rica. It has a prestressed concrete structure, and consists of a basement parking space for 105 vehicles, and nine storeys, providing altogether a floor surface of 12,000 ms2. The building rests on a ground area of 40 by 60 ms, and the main structure occupies 22 by 45 ms. This Bank is located in a district of narrow streets, but its main side overlooks a green open space, which will improve its visibility and appearance. The building structure is made up of a framework of prestressed beams and columns. The beams have been concreted at the site, and the joists, which are also prestressed, are factory made. This framework, at each floor level, constitutes the basis of a continuous slab, which renders the total structure exceedingly stiff. The main continuous girders span 11.22 ms spaces, and vary in cross section. The prestressing reinforcements consist of 6 Loeba type cables. This is an original design by Dr. Leonhardt, in which the cables are placed on three horizontal layers, of parabolic outline. Each cable is made up of 12 x 5.4 mm wires, with a breaking stress of 180 kg/mm2 The tensioning stress was 108 kg/mm2, and the total prestress load is 29,700 kgs. The cables run in corrugated metal tubes, and these were kept in precise position with the aid of distance pieces.El nuevo edificio, destinado a agrupar los servicios del Banco Central de Costa Rica, está constituido por una estructura de hormigón pretensado. El inmueble dispone de un sótano, estacionamiento propio para 105 vehículos y nueve plantas, con una superficie total de 12.000 metros cuadrados. Se asienta sobre una base de 40x60 m, donde se levanta un núcleo central de 22x45 metros. Está situado en un barrio de calles estrechas, pero tiene su fachada, principal frente a una zona verde que le proporcionará mayor categoría y visibilidad. La estructura se compone de una retícula de vigas

  18. Central Laboratories Services

    Data.gov (United States)

    Federal Laboratory Consortium — The TVA Central Laboratories Services is a comprehensive technical support center, offering you a complete range of scientific, engineering, and technical services....

  19. An Integrated Safety Assessment Methodology for Generation IV Nuclear Systems

    Energy Technology Data Exchange (ETDEWEB)

    Timothy J. Leahy

    2010-06-01

    The Generation IV International Forum (GIF) Risk and Safety Working Group (RSWG) was created to develop an effective approach for the safety of Generation IV advanced nuclear energy systems. Early work of the RSWG focused on defining a safety philosophy founded on lessons learned from current and prior generations of nuclear technologies, and on identifying technology characteristics that may help achieve Generation IV safety goals. More recent RSWG work has focused on the definition of an integrated safety assessment methodology for evaluating the safety of Generation IV systems. The methodology, tentatively called ISAM, is an integrated “toolkit” consisting of analytical techniques that are available and matched to appropriate stages of Generation IV system concept development. The integrated methodology is intended to yield safety-related insights that help actively drive the evolving design throughout the technology development cycle, potentially resulting in enhanced safety, reduced costs, and shortened development time.

  20. Testing and economical evaluation of U(IV) in Purex

    International Nuclear Information System (INIS)

    The use of uranous nitrate, U(IV), as a plutonium reductant in the Purex solvent extraction process could significantly reduce the waste generation at the Savannah River Plant. The current reductant is a ferrous sulfamate (FS)/hydroxylamine nitrate (HAN) mixture. The iron and sulfate in the FS are major contributors to waste generation. The U(IV) reductant oxidizes to U(VI) producing no waste. The Savannah River Laboratory has developed an efficient electrochemical cell for U(IV) production and has demonstrated the effectiveness of U(IV) as a plutonium reductant. Plant tests and economic analyses are currently being conducted to determine the cost effectiveness of U(IV) implementation. The results of recent studies are presented

  1. Irradiation Alters MMP-2/TIMP-2 System and Collagen Type IV Degradation in Brain

    International Nuclear Information System (INIS)

    Purpose: Blood-brain barrier (BBB) disruption is one of the major consequences of radiation-induced normal tissue injury in the central nervous system. We examined the effects of whole-brain irradiation on matrix metalloproteinases (MMPs)/tissue inhibitors of metalloproteinases (TIMPs) and extracellular matrix (ECM) degradation in the brain. Methods and Materials: Animals received either whole-brain irradiation (a single dose of 10 Gy γ-rays or a fractionated dose of 40 Gy γ-rays, total) or sham-irradiation and were maintained for 4, 8, and 24 h following irradiation. mRNA expression levels of MMPs and TIMPs in the brain were analyzed by real-time reverse transcriptase-polymerase chain reaction (PCR). The functional activity of MMPs was measured by in situ zymography, and degradation of ECM was visualized by collagen type IV immunofluorescent staining. Results: A significant increase in mRNA expression levels of MMP-2, MMP-9, and TIMP-1 was observed in irradiated brains compared to that in sham-irradiated controls. In situ zymography revealed a strong gelatinolytic activity in the brain 24 h postirradiation, and the enhanced gelatinolytic activity mediated by irradiation was significantly attenuated in the presence of anti-MMP-2 antibody. A significant reduction in collagen type IV immunoreactivity was also detected in the brain at 24 h after irradiation. In contrast, the levels of collagen type IV were not significantly changed at 4 and 8 h after irradiation compared with the sham-irradiated controls. Conclusions: The present study demonstrates for the first time that radiation induces an imbalance between MMP-2 and TIMP-2 levels and suggests that degradation of collagen type IV, a major ECM component of BBB basement membrane, may have a role in the pathogenesis of brain injury.

  2. Irradiation Alters MMP-2/TIMP-2 System and Collagen Type IV Degradation in Brain

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Won Hee [School of Biomedical Engineering and Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia (United States); Warrington, Junie P.; Sonntag, William E. [Reynolds Oklahoma Center on Aging, Department of Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma (United States); Lee, Yong Woo, E-mail: ywlee@vt.edu [School of Biomedical Engineering and Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia (United States); Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia (United States)

    2012-04-01

    Purpose: Blood-brain barrier (BBB) disruption is one of the major consequences of radiation-induced normal tissue injury in the central nervous system. We examined the effects of whole-brain irradiation on matrix metalloproteinases (MMPs)/tissue inhibitors of metalloproteinases (TIMPs) and extracellular matrix (ECM) degradation in the brain. Methods and Materials: Animals received either whole-brain irradiation (a single dose of 10 Gy {gamma}-rays or a fractionated dose of 40 Gy {gamma}-rays, total) or sham-irradiation and were maintained for 4, 8, and 24 h following irradiation. mRNA expression levels of MMPs and TIMPs in the brain were analyzed by real-time reverse transcriptase-polymerase chain reaction (PCR). The functional activity of MMPs was measured by in situ zymography, and degradation of ECM was visualized by collagen type IV immunofluorescent staining. Results: A significant increase in mRNA expression levels of MMP-2, MMP-9, and TIMP-1 was observed in irradiated brains compared to that in sham-irradiated controls. In situ zymography revealed a strong gelatinolytic activity in the brain 24 h postirradiation, and the enhanced gelatinolytic activity mediated by irradiation was significantly attenuated in the presence of anti-MMP-2 antibody. A significant reduction in collagen type IV immunoreactivity was also detected in the brain at 24 h after irradiation. In contrast, the levels of collagen type IV were not significantly changed at 4 and 8 h after irradiation compared with the sham-irradiated controls. Conclusions: The present study demonstrates for the first time that radiation induces an imbalance between MMP-2 and TIMP-2 levels and suggests that degradation of collagen type IV, a major ECM component of BBB basement membrane, may have a role in the pathogenesis of brain injury.

  3. Cuotas de género y tipo de lista en América Latina

    Directory of Open Access Journals (Sweden)

    Nélida Archenti

    2007-06-01

    Full Text Available Las reformas electorales llevadas a cabo en algunos países de América Latina, a partir de los '90, han producido resultados cuyo análisis es ineludible para la comprensión del acceso de las mujeres a los cargos electivos. En la actualidad, no existe un consenso respecto a cómo afectan los elementos del sistema electoral a la participación política femenina bajo las leyes de cuotas, en particular en lo referente al tipo de lista (bloqueada o desbloqueada y la magnitud de distrito. Este artículo intenta, a través del análisis de los resultados electorales de esas provincias, aportar nuevos elementos empíricos al debate sobre los efectos del tipo de lista en el acceso de las mujeres a los legislativos, en sistemas con cuotas de género.The electoral reforms implemented in some Latin American countries at the 90's have had a strong impact over the women access to elected positions, although there is not a consensus about the electoral systems ' components that affect the women participation in politics through especific electoral laws. This article analyses the effects of electoral mechanisms on women's participation in politics in some municiaplities in Argentina.

  4. Opciones tipo barrera sobre la tasa de cambio Peso/Dólar

    Directory of Open Access Journals (Sweden)

    Ángela María Pérez Muñoz

    2007-12-01

    Full Text Available Este artículo es derivado de la investigación titulada Opciones tipo barrera sobretasa de cambio. Se realizó un examen de diversas metodologías existentes parala valoración y medición de los riesgos de las opciones tipo barrera europeas. Larevisión se centró, principalmente, en los métodos numéricos. Las SimulacionesMontecarlo constituyen una metodología para valorar y calcular las coberturas deopciones que dependen de la ruta seguida por los precios del activo subyacentedurante su vida útil. Los resultados generados corroboran que ellas convergensatisfactoriamente en la formulación analítica cuando ésta se ajusta a unaobservación discreta de los precios del activo subyacente. Tales resultados seajustan más cuando se aplica el Método de Control de Varianza de Variables Antitéticas a las Simulaciones Montecarlo. 

  5. Fenótipos clínicos de asma grave Clinical phenotypes of severe asthma

    Directory of Open Access Journals (Sweden)

    Roseliane de Souza Araújo Alves

    2008-09-01

    Full Text Available OBJETIVO: Estabelecer os fenótipos clínicos em portadores de asma grave. MÉTODOS: Foram estudados, retrospectivamente, 111 pacientes em um ambulatório especializado. Os pacientes foram avaliados e acompanhados de maneira sistemática, estabelecendo-se ao final do acompanhamento a adesão e o controle ou não da doença por dados clínicos e funcionais. A resistência ao tratamento foi definida como o não preenchimento, ao final do acompanhamento, por pelo menos seis meses, dos critérios de controle de asma, apesar do uso correto e adesão à medicação. Os fenótipos foram determinados por análise fatorial e comparados por testes diversos. RESULTADOS: Ao final, 88 pacientes foram considerados aderentes e 23 não aderentes. Por análise fatorial do grupo aderente, quatro fenótipos foram determinados: o fenótipo 1 (28 pacientes, formado pelos pacientes resistentes ao tratamento, com maior freqüência de sintomas noturnos, maior número de exacerbações e uso mais freqüente de broncodilatador de resgate; o fenótipo 2 (48 pacientes, formado pelos pacientes com obstrução persistente, com menores valores de relação volume expiratório forçado no primeiro segundo/capacidade vital forçada na avaliação inicial, idade mais avançada e maior tempo de doença; o fenótipo 3 (42 pacientes, representa os pacientes com rinossinusite alérgica, sendo constituído de não fumantes com obstrução predominantemente reversível; e o fenótipo 4 (15 pacientes, formado por casos com história de intolerância à aspirina associado à asma quase fatal. CONCLUSÕES: Um número significativo de portadores de ama grave não adere ao tratamento. Muitos pacientes com asma grave têm obstrução irreversível, mas o fenótipo clínico mais relevante é constituído pelos pacientes resistentes ao tratamento habitual.OBJECTIVE: To characterize clinical phenotypes of severe asthma. METHODS: A total of 111 patients were retrospectively evaluated at a

  6. ¿Conviene flexibilizar el tipo de cambio para mejorar la competitividad?

    Directory of Open Access Journals (Sweden)

    Guadalupe Mántey

    2013-01-01

    Full Text Available En este artículo se investigan los efectos de una devaluación cambiaria en la dinámica exportadora de los países en desarrollo. En oposición a la teoría convencional, se muestra que el efecto negativo de esa medida en las hojas de balance de las empresas exportadoras, por su elevada dolarización de pasivos, anula la posible ganancia en competitividad. Con base en los resultados de la investigación empírica, se argumenta que el establecimiento de un tipo de cambio real competitivo y estable, por la vía de la flexibilización del tipo de cambio nominal, es desaconsejable en estos países; y se propone una estrategia alternativa para elevar la productividad, a fin de lograr una inserción más favorable en la economía global.

  7. Neurofibromatosis tipo 2: La historia de Lidia Neurofibromatosis type 2: Life story of Lidia

    Directory of Open Access Journals (Sweden)

    Ares Solanes

    2012-06-01

    Full Text Available La Neurofibromatosis tipo 2 (NF2 es una enfermedad minoritaria hereditaria caracterizada por la presentación progresiva de múltiples tumores, especialmente Schwanomas Vestibulares Bilaterales, a partir de la segunda década de vida. Su tratamiento con cirugía o radioterapia no evita la pérdida de audición. El pronóstico es complicado y los pacientes deben enfrentarse al progresivo deterioro de su calidad de vida. Un estudio cualitativo a través de la historia de vida de nuestra informante clave nos permite explorar y comprender su vivencia, afecta de Neurofibromatosis tipo II (NF2, así como conocer sus necesidades y aprender de sus recursos adaptativos.Neurofibromatosis type 2 (NF2 is a minority hereditary disease characterized by the development of multiple tumours, especially bilateral vestibular schwannomas, in young adults. Treatments with surgery or radiotherapy are performed to delay hearing loss. The prognosis is complicated and patients face the deterioration of their quality of life. A qualitative study through our key subject's life allows us to explore and understand her experience, as a NF2 sufferer, to identify her needs and to learn about her adaptive measures.

  8. MULHER, UMA CONSTRUÇÃO SOCIAL: REPRESENTAÇÕES, ESTEREÓTIPOS E IMAGENS

    Directory of Open Access Journals (Sweden)

    Rosana Rocha Siqueira

    2014-06-01

    Full Text Available O presente artigo tem como objetivo uma revisita a referenciais bibliográficos a partir dos quais foi possível refletir sobre a construção de estereótipos relacionados à imagem feminina no século XX partindo-se do conceito de representação proposto por Moscovici (2003. Pretende-se na convergência destas duas categorias (representação e imagem apresentar olhares sobre a construção de alguns estereótipos relacionados às mulheres, uma vez que diversas instituições inclusive o próprio movimento feminista em suas variadas vertentes também preocuparam-se em “criar” representações das mulheres. Algumas discussões presentes neste artigo fizeram parte do conteúdo da disciplina “Seminários avançados sobre produtos, processos e discursos midiáticos” ofertada pelo Núcleo de Pós-Graduação da Universidade Federal de Sergipe. Desta forma pode-se refletir sobre os variados recortes imagéticos dos quais as instituições e as próprias mulheres utilizaram-se para compor novas representações.

  9. ¿QUÉ ESCRIBEN LOS ESTUDIANTES DE POSGRADO? TIPOS DE TEXTOS SOLICITADOS EN SEMINARIOS

    Directory of Open Access Journals (Sweden)

    Laura Colombo

    2013-12-01

    Full Text Available El tema "tipos de textos solicitados a los alumnos en sus carreras universitarias" ha sido objeto de varias investigaciones, pero pocas se han centrado en el nivel de posgrado. En este trabajo, mediante una encuesta hecha a 118 participantes, indagamos el punto de vista de los estudiantes de maestrías y doctorados en diversas disciplinas. Los resultados muestran que existen diferencias entre programas de las facultades de artes, humanidades y ciencias sociales; ingeniería y tecnología de la información, y ciencias naturales y matemáticas. A excepción del abstract o resumen, los textos frecuentemente solicitados divergen de aquellos que se escribirán una vez finalizados los estudios. Resalta la poca frecuencia con que se piden artículos para revistas científicas (principal tipo de escrito que se utiliza en todas las disciplinas. Estudios como el aquí propuesto pueden impulsar futuras investigaciones sobre los programas de posgrado y su articulación con el ámbito profesional o académico.

  10. Tipos de tiempo para el turismo de sol y playa en el litoral alicantino

    Directory of Open Access Journals (Sweden)

    Martínez Ibarra, Emilio

    2008-06-01

    Full Text Available In this article the author proposes a series of weather types, with the purpose of evaluating the climatic-tourist potencial for the tourism of sun and beach in the coast of Alicante. The method, analysis of the frequency of the density of use of the practice the suntan and swin, the type of consulted source (webcam images, as well as the diversity of distinguished types, make of this work a novel contribution, in a branch of the knowledge relatively little cultivated although emergent: the Tourist Climatology.

    En el presente trabajo se proponen una serie de tipos de tiempo, con la finalidad de evaluar el potencial climático-turístico para el turismo de sol y playa en el litoral alicantino. El método, análisis de la frecuentación de la densidad de uso de la práctica del bronceado y baño, el medio a partir del cual se ha obtenido la información (imágenes webcam, así como la diversidad de tipos distinguidos, hacen de este trabajo una aportación novedosa, en una rama del conocimiento relativamente poco cultivada aunque emergente: la Climatología Turística.

  11. Armazenamento refrigerado de beterraba minimamente processada em diferentes tipos de corte

    Directory of Open Access Journals (Sweden)

    Kluge Ricardo Alfredo

    2006-01-01

    Full Text Available Beterrabas minimamente processadas apresentam vida de prateira curta, mesmo sob refrigeração, devido à descoloração superficial que deprecia a qualidade do produto. O objetivo do trabalho foi verificar o efeito de três tipos de corte em beterraba minimamente avaliando sua qualidade durante a conservação refrigerada. Os cortes utilizados foram: fatia, cubo e retalho. Após o processamento as beterrabas foram armazenadas a 5degreesC e as avaliações sendo realizadas durante dez dias a cada dois dias. Beterrabas em fatias apresentaram maior respiração e maiores perdas dos pigmentos betalaínas e de sólidos solúveis durante o armazenamento. Através de análise sensorial, verificou-se que a qualidade visual do produto foi mantida por até quatro dias, independente do tipo de corte. O fator que mais depreciou a qualidade de beterraba minimamente processada foi a perda de coloração das raízes (esbranquiçamento. Pode-se concluir que a beterraba minimamente processada em fatias ou cubo apresenta conservação de, no máximo 4 dias, a 5degreesC, enquanto minimamente processada em retalho apresenta 6 dias de conservação.

  12. Actinide Corroles: Synthesis and Characterization of Thorium(IV) and Uranium(IV) bis(-chloride) Dimers

    Energy Technology Data Exchange (ETDEWEB)

    Ward, Ashleigh L.; Buckley, Heather L.; Gryko, Daniel T.; Lukens, Wayne W.; Arnold, John

    2013-12-01

    The first synthesis and structural characterization of actinide corroles is presented. Thorium(IV) and uranium(IV) macrocycles of Mes2(p-OMePh)corrole were synthesised and characterized by single-crystal X-ray diffraction, UV-Visible spectroscopy, variable-temperature 1H NMR, ESI mass spectrometry and cyclic voltammetry.

  13. Electrochemical techniques application in corrosion problems of fossil power plants; Aplicacion de tecnicas electroquimicas en problemas de corrosion en centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Cano Castillo, Ulises; Garcia Ochoa, Esteban Miguel; Martinez Villafane, Alberto; Mariaca Rodriguez, Liboria; Malo Tamayo, Jose Maria; Uruchurtu Chavarin, Jorge [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1990-12-31

    Some aspects of the electrochemical techniques employed to evaluate the corrosion at low temperature in fossil power plants are commented, as well as the results obtained with the application of them in three power plants of this type. [Espanol] Se comentan algunos aspectos de tecnicas electroquimicas utilizadas para evaluar la corrosion en baja temperatura en centrales termoelectricas, asi como los resultados de la aplicacion de las mismas en tres centrales de este tipo.

  14. D Central Line Extraction of Fossil Oyster Shells

    Science.gov (United States)

    Djuricic, A.; Puttonen, E.; Harzhauser, M.; Mandic, O.; Székely, B.; Pfeifer, N.

    2016-06-01

    Photogrammetry provides a powerful tool to digitally document protected, inaccessible, and rare fossils. This saves manpower in relation to current documentation practice and makes the fragile specimens more available for paleontological analysis and public education. In this study, high resolution orthophoto (0.5 mm) and digital surface models (1 mm) are used to define fossil boundaries that are then used as an input to automatically extract fossil length information via central lines. In general, central lines are widely used in geosciences as they ease observation, monitoring and evaluation of object dimensions. Here, the 3D central lines are used in a novel paleontological context to study fossilized oyster shells with photogrammetric and LiDAR-obtained 3D point cloud data. 3D central lines of 1121 Crassostrea gryphoides oysters of various shapes and sizes were computed in the study. Central line calculation included: i) Delaunay triangulation between the fossil shell boundary points and formation of the Voronoi diagram; ii) extraction of Voronoi vertices and construction of a connected graph tree from them; iii) reduction of the graph to the longest possible central line via Dijkstra's algorithm; iv) extension of longest central line to the shell boundary and smoothing by an adjustment of cubic spline curve; and v) integration of the central line into the corresponding 3D point cloud. The resulting longest path estimate for the 3D central line is a size parameter that can be applied in oyster shell age determination both in paleontological and biological applications. Our investigation evaluates ability and performance of the central line method to measure shell sizes accurately by comparing automatically extracted central lines with manually collected reference data used in paleontological analysis. Our results show that the automatically obtained central line length overestimated the manually collected reference by 1.5% in the test set, which is deemed

  15. Studies of obtaining and stability in aqueous medium of new complex compounds of Ti(IV) and Zr(IV) used in ecological leather tanning

    Science.gov (United States)

    Crudu, Marian; Sibiescu, Doina; Rosca, Ioan; Sutiman, Daniel; Vizitiu, Mihaela

    2009-01-01

    In this paper, the study of obtaining new coordination compounds of Ti(IV) and Zr(IV) using as ligand: D,L-β-iso-butyric acid, is presented. Also, the stability of these compounds in aqueous medium is studied. The studies of obtaining and of stability of the new compounds were accomplished in aqueous solutions using methods characteristic for coordination compounds: conductance and pH measurements. The combination ratios and the stability were determined with methods characteristic for studies in solutions. From experimental data resulted that the combination ratio of central metallic atoms with the ligand derived from D,L-β-iso-butyric acid was 1:2. From experimental data resulted that in strong acid and strong basic mediums, the coordination compounds could not be obtained. The optimal stability of the studied compounds is limited between 3-6, pH - values. This fact is in accordance with the conditions of using these compounds in ecological leather tanning. Of great importance is that these compounds were used with very good results in tanning processes of different types of leather. This fact evidenced that the ecological alternative of tanning is better than non-ecological tanning using chrome compounds. The importance of this paper consists in obtaining new coordination compounds that can be used in ecological leather tanning.

  16. From yellow to black: dramatic changes between cerium(IV) and plutonium(IV) molybdates.

    Science.gov (United States)

    Cross, Justin N; Duncan, Patrick M; Villa, Eric M; Polinski, Matthew J; Babo, Jean-Marie; Alekseev, Evgeny V; Booth, Corwin H; Albrecht-Schmitt, Thomas E

    2013-02-20

    Hydrothermal reactions of CeCl(3) and PuCl(3) with MoO(3) and Cs(2)CO(3) yield surprisingly different results. Ce(3)Mo(6)O(24)(H(2)O)(4) crystallizes as bright yellow plates (space group C2/c, a = 12.7337(7) Å, b = 22.1309(16) Å, c = 7.8392(4) Å, β = 96.591(4)°, V = 2194.6(2) Å(3)), whereas CsPu(3)Mo(6)O(24)(H(2)O) crystallizes as semiconducting black-red plates (space group C2/c, a = 12.633(5) Å, b = 21.770(8) Å, c = 7.743(7) Å, β = 96.218(2)°, V = 2117(2) Å(3)). The topologies of the two compounds are similar, with channel structures built from disordered Mo(VI) square pyramids and (RE)O(8) square antiprisms (RE = Ce(IV), Pu(IV)). However, the Pu(IV) compound contains Cs(+) in its channels, while the channels in Ce(3)Mo(6)O(24)(H(2)O)(4) contain water molecules. Disorder and an ambiguous oxidation state of Mo lead to the formula CsPu(3)Mo(6)O(24)(H(2)O), where one Mo site is Mo(V) and the rest are Mo(VI). X-ray absorption near-edge structure (XANES) experiments were performed to investigate the source of the black color of CsPu(3)Mo(6)O(24)(H(2)O). These experiments revealed Pu to be tetravalent, while the strong pre-edge absorption from the distorted molybdate anions leaves the oxidation state ambiguous between Mo(V) and Mo(VI). PMID:23360299

  17. Central centrifugal cicatricial alopecia

    OpenAIRE

    Collin Blattner; Dennis C Polley; Frank Ferritto; Elston, Dirk M

    2013-01-01

    Central centrifugal cicatricial alopecia is a common cause of progressive permanent apical alopecia. This unique form of alopecia includes entities previously know as “hot comb alopecia,” “follicular degeneration syndrome,” “pseudopelade” in African Americans and “central elliptical pseudopelade” in Caucasians. The etiology appears to be multifactorial and the condition occurs in all races.

  18. Central pontine myelinolysis

    Science.gov (United States)

    ... from one nerve to another. The most common cause of central pontine myelinolysis is a quick change in the body's sodium ... The nerve damage caused by central pontine myelinolysis is usually ... The disorder can cause serious long-term (chronic) disability.

  19. Efecto de los factores socioculturales en la capacidad de autocuidado del paciente hospitalizado con diabetes tipo 2

    Directory of Open Access Journals (Sweden)

    Mireya Gricelia Galindo-Martínez

    2014-01-01

    Full Text Available Introducción: la diabetes tipo 2 es considerada como un problema de salud pública por su creciente prevalencia e incidencia. Obje- tivo: describir el efecto de los factores socioculturales en la capacidad de autocuidado del paciente hospitalizado con diabetes tipo 2 en el Hospital General de Tecomán, Colima, México. Método: estudio transversal, observacional. Se trabajó con 68 pacientes hospitalizados con diabetes tipo 2; se utilizó un instrumento que midió el efecto de los factores socioculturales en la capacidad de autocuidado. El análisis de datos se realizó con Razón de Momios, intervalos de confianza al 95 % y fracción atribuible en expuestos. Resultados: los factores socioculturales tuvieron un leve efecto positivo en la capacidad de autocuidado (RM = 1,10; IC 95 %: 0,26-4,74 en pacientes hospitali- zados con diabetes tipo 2. Conclusiones: los factores socioculturales: experiencias vitales, experiencias laborales, religión, costumbres y tradiciones, prácticas curativas y ritos, señalados en la Teoría General del Déficit de Autocuidado, muestran un efecto positivo sobre la capacidad de autocuidado de las personas con diabetes tipo 2.

  20. Experimental facilities for Generation IV reactors research

    International Nuclear Information System (INIS)

    Centrum Vyzkumu Rez (CVR) is research and development Company situated in Czech Republic and member of the UJV group. One of its major fields is material research for Generation IV reactor concepts, especially supercritical water-cooled reactor (SCWR), very high temperature/gas-cooled fast reactor (VHTR/GFR) and lead-cooled fast reactor (LFR). The CVR is equipped by and is building unique experimental facilities which simulate the environment in the active zones of these reactor concepts and enable to pre-qualify and to select proper constructional materials for the most stressed components of the facility (cladding, vessel, piping). New infrastructure is founded within the Sustainable Energy project focused on implementation the Generation IV and fusion experimental facilities. The research of SCWR concept is divided to research and development of the constructional materials ensured by SuperCritical Water Loop (SCWL) and fuel components research on Fuel Qualification Test loop (SCWL-FQT). SCWL provides environment of the primary circuits of European SCWR, pressure 25 MPa, temperature 600 deg. C and its major purpose is to simulate behavior of the primary medium and candidate constructional materials. On-line monitoring system is included to collect the operational data relevant to experiment and its evaluation (pH, conductivity, chemical species concentration). SCWL-FQT is facility focused on the behavior of cladding material and fuel at the conditions of so-called preheater, the first pass of the medium through the fuel (in case of European SCWR concept). The conditions are 450 deg. C and 25 MPa. SCWL-FQT is unique facility enabling research of the shortened fuel rods. VHTR/GFR research covers material testing and also cleaning methods of the medium in primary circuit. The High Temperature Helium Loop (HTHL) enables exposure of materials and simulates the VHTR/GFR core environment to analyze the behavior of medium, especially in presence of organic compounds and

  1. Central Diffraction at ALICE

    CERN Document Server

    Lämsä, Jerry W

    2011-01-01

    The ALICE experiment is shown to be well suited for studies of exclusive final states from central diffractive reactions. The gluon-rich environment of the central system allows detailed QCD studies and searches for exotic meson states, such as glueballs, hybrids and new charmonium-like states. It would also provide a good testing ground for detailed studies of heavy quarkonia. Due to its central barrel performance, ALICE can accurately measure the low-mass central systems with good purity. The efficiency of the Forward Multiplicity Detector (FMD) and the Forward Shower Counter (FSC) system for detecting rapidity gaps is shown to be adequate for the proposed studies. With this detector arrangement, valuable new data can be obtained by tagging central diffractive processes.

  2. Central diffraction at ALICE

    Energy Technology Data Exchange (ETDEWEB)

    Laemsae, J W; Orava, R, E-mail: risto.orava@helsinki.fi [Helsinki Insitute of Physics, and Division of Elementary Particle Physics, Department of Physics, PL 64 (Gustaf Haellstroeminkatu 2a), FI-00014 University of Helsinki (Finland)

    2011-02-01

    The ALICE experiment is shown to be well suited for studies of exclusive final states from central diffractive reactions. The gluon-rich environment of the central system allows detailed QCD studies and searches for exotic meson states, such as glueballs, hybrids and new charmonium-like states. It would also provide a good testing ground for detailed studies of heavy quarkonia. Due to its central barrel performance, ALICE can accurately measure the low-mass central systems with good purity. The efficiency of the Forward Multiplicity Detector (FMD) and the Forward Shower Counter (FSC) system for detecting rapidity gaps is shown to be adequate for the proposed studies. With this detector arrangement, valuable new data can be obtained by tagging central diffractive processes.

  3. Long-Term IQ Stability Using the WISC-IV and WAIS-IV among a Sample of Special Education Students

    Science.gov (United States)

    Spector, Hayley

    2013-01-01

    The present study investigated the stability of scores on the WISC-IV and WAIS-IV over an approximate six-year period. Previous research using older versions of the WISC and WAIS have suggested that these scales demonstrate strong stability of scores. Since research that has compared the stability of scores between the WISC-IV and the WAIS-IV is…

  4. Caracterização de pessoas com Diabetes Mellitus Tipo 2 Caracterización de personas con Diabetes Mellitus Tipo 2 Characterization of people with Diabetes Mellitus Type 2

    OpenAIRE

    Maria de Fátima Ferreira Grillo; Maria Isabel Pinto Coelho Gorini

    2007-01-01

    O estudo teve por objetivo caracterizar pessoas com Diabete Melittus (DM) Tipo 2, cadastrados em uma Unidade Básica de Saúde. É um estudo observacional, descritivo, do tipo série de casos, com uma amostra de 125 pessoas. Os resultados apresentaram, em sua maioria, pessoas do sexo feminino, na faixa etária dos 60 aos 69 anos e que recebiam de 1 a 2 salários mínimos por mês, hipertensos, dislipidêmicos, com sobrepeso e/ou obesidade, não praticando atividade física regularmente, com dificuldade ...

  5. Type IV collagen-degrading enzyme activity in human serum.

    OpenAIRE

    Hashimoto, Noriaki; Kobayashi,Michio; Watanabe,Akiharu; Higashi,Toshiro; Tsuji, Takao

    1988-01-01

    Type IV collagen-degrading enzyme activity was detected in human serum. Serum was preincubated with 4-aminophenylmercuric acetate and trypsin to activate the enzyme prior to assay. Type IV collagen, purified from human placentas and radiolabeled with [1-14C] acetic anhydride, was used as the substrate. The enzyme activity was measured at pH 7.5 and inhibited by treatment with ethylenediaminetetraacetic acid or heat. The assay of type IV collagen-degrading enzyme in human serum might be useful...

  6. The foam separation of zirconium (IV) from aqueous solutions

    International Nuclear Information System (INIS)

    The foam separation of zirconium(IV) from chloride solutions has been investigated over the 1.8-12 pH range using sodium lauryl sulphate or cetyl(trimethyl)ammonium bromide as collectors. The effects of gas flow rate, bubbling time, collector and zirconium(IV) concentrations, aging of the metal ion, and ionic strength have been studied and the results are discussed in relation to the hydrolytic behaviour of zirconium(IV). Under optimum conditions, ca. 99.5%-removal can be achieved. (orig.)

  7. Spectrophotometric determination of uranium(IV) with Arsenazo III

    International Nuclear Information System (INIS)

    A spectrophotometric procedure was developed for determining U(IV) in the presence of U(VI) by forming a colored complex with Arsenazo III in 4M HCl. The results compare satisfactorily with U(IV) determinations by ceric titration. Total uranium can be determined after reduction of U(VI) with metallic zinc. The concentration range for the absorbance cell solution is 0 to 2 μg U(IV)/mL. Other tetravalent ions, such as thorium, zirconium, hafnium, plutonium, and neptunium, will interfere

  8. Esikoululaisten mielipiteitä päiväkodista

    OpenAIRE

    Andersson, Mats

    2011-01-01

    Andersson, Mats. Esikoululaisten mielipiteitä päiväkodista. Diak Etelä, Helsinki, syksy, 2011, 43 s., 1 liite. Diakonia-ammattikorkeakoulu, Sosiaalialan koulutusohjelma, Sosionomi (AMK) + lastentarhanopettajan kelpoisuus. Opinnäytetyöni tavoitteena oli saada esikouluikäiset lapset kertomaan mielipiteensä päiväkodista. Lapset kertoivat mistä asioista he pitävät ja mistä asioista he eivät pidä päiväkodissa. Sain opinnäytetyötäni varten tutkimusluvan Helsingin kaupungilta. Pyysin lupaa my...

  9. Lapsiperheiden kohtaamispaikka - Lappeenrannan avoimet päiväkodit

    OpenAIRE

    Laitinen, Jenna-Veera; Pekkalin, Noora

    2013-01-01

    Tämän opinnäytetyön tarkoituksena oli selvittää, mikä merkitys Lappeenrannan avoimilla päiväkodeilla on toimintaa käyttävien lapsiperheiden arjessa. Lap-peenrannassa toimii kolme avointa päiväkotia, jotka sijaitsevat Lauritsalassa, Leirissä ja Sammonlahdessa. Tavoitteena oli tuoda avoimia varhaiskasvatus-palveluita enemmän ihmisten tietoisuuteen ja saada ihmiset tiedostamaan pal-veluiden tärkeys. Lisäksi haluttiin tuoda esille, mikä merkitys vertaistuella on avointen päiväkotien asiakkaille s...

  10. Isien kokemuksia kasvatuskumppanuudesta päivähoidossa

    OpenAIRE

    Riihijärvi, Annakaisa

    2012-01-01

    Opinnäytetyön tavoitteena oli tutkia isien kokemuksia kasvatuskumppanuudesta päivähoidossa. Tutkimuksen avulla haluttiin selvittää, mitä isät tietävät kasvatuskumppanuudesta ja miten he kokevat asemansa kasvatuskumppanina verrattuna äitiin ja päivähoidon henkilökuntaan. Tutkimuksen avulla haluttiin selvittää, millaisia toiveita isillä on kasvatuskumppanuutta kohtaan ja onko päivähoidon ja isien välisessä kasvatuskumppanuudessa kehittämiskohtia. Lisäksi haluttiin saada selville millaista toimi...

  11. Koululaisten aamu- ja iltapäivätoiminnan kustannusseuranta

    OpenAIRE

    Kontturi, Minna

    2013-01-01

    Koululaisten aamu- ja iltapäivätoiminta kuuluu opetus- ja kulttuuriministeriön alaiseen toimintaan ja opetushallitus on antanut toiminnalle perusteet. Tämän opinnäytetyön tarkoituksena oli selvittää koululaisten aamu- ja iltapäivätoiminnasta aiheutuneita kustannuksia ostopalveluna hankitun ja Ilomantsin kunnan järjestämän koulu-laisten aamu- ja iltapäivätoiminnan välillä. Tutkimuksen avulla selvitettiin, mitä kustan-nuksia toiminnasta aiheutuu ja miten suuria kustannukset ovat eri järjest...

  12. DESENVOLVIMENTO DE IOGURTE TIPO SUNDAE SABOR MARACUJA FEITO A PARTIR DE LEITE DE CABRA

    Directory of Open Access Journals (Sweden)

    Tatiane F. Araújo,

    2012-02-01

    Full Text Available O objetivo desse estudo foi verificar a viabilidade do leite de cabra na fabricação de iogurte como alternativa ao consumo de derivados lácteos fabricados com este leite. Foram fabricados dois iogurtes, variando-se a matéria láctea base: leite de cabra e leite de vaca. Os dois tipos de iogurtes foram fabricados em três bateladas, em ocasiões diferentes. As variáveis avaliadas foram: pH, acidez titulável (% de ácido lático, gordura e perfil de textura (firmeza, mastigabilidade, coesividade e gomosidade. Na análise sensorial, os testes de aceitação foram realizados em duas sessões, nas quais se avaliou a impressão global das amostras. Na primeira sessão os provadores (n=50 avaliaram as amostras codificadas com números de três dígitos aleatórios (teste cego, ou seja, os mesmos não tinham informação a respeito do iogurte que estavam avaliando; na segunda sessão, a amostra foi servida com a informação (iogurte de leite de cabra. Os dados foram avaliados estatisticamente utilizando-se análise de variância (ANOVA. Para comparação de médias utilizou-se o teste de Tukey. As análises físico-químicas demonstraram alta similaridade nas variáveis avaliadas entre os iogurtes feitos com leite de cabra e leite de vaca. No entanto, o iogurte de leite de vaca apresentou maior teor de gordura (p<0,05. Ambos os iogurtes apresentaram perfil de textura similar. A análise sensorial indicou a mesma aceitação para os dois tipos de iogurtes. A informação «feito com leite de cabra» não influenciou na aceitação do respectivo iogurte. Conclui-se que a produção de iogurte tipo sundae sabor maracujá constitui uma alternativa viável para a colocação no mercado de produtos lácteos fermentados derivados do leite de cabra.

  13. Avaliação de genótipos de bananeira no norte do Estado do Paraná

    OpenAIRE

    Rogério de Sá Borges; Silva, Sebastião de Oliveira e; Fernando Teixeira de Oliveira; Sérgio Ruffo Roberto

    2011-01-01

    O objetivo deste trabalho foi avaliar o desempenho de 14 genótipos de bananeira na região norte do Estado do Paraná. O experimento foi conduzido sem irrigação em uma propriedade comercial localizada no município de Andirá-PR, no período de 2007 a 2009. O delineamento experimental foi o inteiramente casualizado, com oito repetições e uma planta por parcela. O genótipo FHIA 17 destacou-se dos demais, apresentando o melhor conjunto de caracteres agronômicos. Os genótipos PA42-44, PV94-01 e 'BRS ...

  14. Memoria explicativa del tipo de buque y servicio al que se destina : Proyecto número: 1.696 / LPG 7.000 m3

    OpenAIRE

    Millón del Valle, Raimundo; Pérez González, Rosa María

    2010-01-01

    Los buques LPG son los buques destinados al transporte de gases del petróleo licuado, tal y como indican sus siglas, pero además pueden llevar otro tipo de gases cuyas características son similares a las del anterior tipo de buque, en concreto todos los gases que se contemplan como IMO tipo C, que nos indica que el gas se transporta en recipientes convencionales a presión.

  15. Neurovirulência e neuroinvasividade de herpesvírus bovinos tipos 1 e 5 em coelhos

    Directory of Open Access Journals (Sweden)

    Spilki Fernando R.

    2002-01-01

    Full Text Available Com o objetivo de avaliar a capacidade dos herpesvírus bovinos tipos 1 e 5 (BHV-1 e BHV-5 de invadir e replicar no sistema nervoso central (SNC (neuroinvasividade, bem como sua capacidade de induzir doença neurológica (neurovirulência, coelhos com 30 a 35 dias de idade foram inoculados com uma amostra do Herpesvírus da Encefalite Bovina (BHV-5; amostra EVI 88/95 ou com amostras de BHV-1 (Los Angeles ou Cooper, pelas vias intratecal (IT e intranasal (IN. A inoculação da amostra de BHV-5, tanto pela via IT como IN, induziu sinais clínicos neurológicos em 100% (12/12 dos coelhos inoculados. Os exames histopatológicos revelaram um quadro de meningoencefalite não-purulenta multifocal, caracterizada por gliose multifocal e infiltrados perivasculares. O vírus foi isolado de várias áreas do SNC desses animais. As amostras de BHV-1, quando inoculadas pela via IT, não foram neurovirulentas. A amostra Los Angeles de BHV-1, quando administrada pela via IN, induziu sinais respiratórios severos, além de sinais neurológicos em 57% (4/7 dos animais inoculados. Entretanto, o exame histopatológico destes quatro animais revelou vasculite e trombose no pulmão e cérebro, este último apresentando focos de necrose neuronal, porém sem lesões indicativas de encefalite. Isso sugere que os sinais neurológicos foram, provavelmente, conseqüentes a prejuízos no fluxo sangüíneo encefálico, e não a danos neuronais provocados pela inoculação desse vírus. A amostra Cooper de BHV-1, quando inoculada pela via IN, induziu apenas sinais leves de infecção respiratória. Estes resultados indicam que apenas a amostra de BHV-5 foi capaz de invadir e replicar no encéfalo dos coelhos quando inoculada tanto por via IN como IT, apresentando neuroinvasividade e neurovirulência. É possível que estas observações tenham relação com o fato de amostras de BHV-5 freqüentemente causarem encefalites, em contraposição a infecções pelo BHV-1, onde

  16. Isotopic age determinations in Bergslagen, Sweden. IV

    International Nuclear Information System (INIS)

    Rb-Sr whole-rock isotope analyses of ten samples of Graengen granite yield a best-fit line corresponding to an age of 1663 +- 51 Ma with an initial 87Sr/86Sr ratio of 0.70844 +- 0.00578. Four samples of Tallaasberget granite give a best-fit line corresponding to an age of 1639 +- 185 Ma with an initial 87Sr/86Sr ratio of 0.70191 +- 0.04241. Isochron relationships appear disturbed by the low-grade retrograde metamorphism which has affected the granites. Taking account of the limits of error it is suggested that the Graengen and Tallaasberget granites in the Hjulsjoe region, Bergslagen, Central Sweden, are coeval with the 1.7-1.6 Ga granites of the Smaaland and Vaermland Groups in S and SW Sweden. (Auth.)

  17. Desempenho de genótipos de batata-doce submetidos ao efeito da calagem em Rio Largo-Alagoas

    Directory of Open Access Journals (Sweden)

    Islan Diego Espindula de Carvalho

    2015-09-01

    Full Text Available O objetivo desse trabalho foi avaliar o desempenho de genótipos de batata-doce submetidos ao efeito da calagem em Rio Largo-AL. O delineamento experimental utilizado foi o de blocos casualizados no esquema fatorial (7 x 2,  com sete genótipos de batata-doce e dois tipos de correção do solo, em três repetições. As variáveis avaliadas foram: Número de Raízes Comerciais (NRC; Número Total de Raízes (NTR; Comprimento de Raízes Comerciais (CRC; Diâmetro de Raízes Comerciais (DRC; Rendimento de Raízes Comerciais (RRC; Rendimento Total de Raízes (RTR e Peso Médio de Raízes Comerciais (PMRC. Dentre os genótipos de batata-doce avaliados no experimento, o Clone-06 apresentou o melhor desempenho, superando todos os genótipos avaliados, inclusive as testemunhas, Rainha de Penedo e Sergipana, tanto em produtividade, com rendimento médio de 15,79 t.ha-1de raízes comerciais, quanto em qualidade, apresentando dimensões de raízes comerciais dentro dos padrões de comercialização como Extra A. O desempenho dos genótipos, bem como a grande maioria das variáveis de batata-doce não foram influenciadas pela correção do solo.

  18. New tools for generation IV assemblies modelling

    International Nuclear Information System (INIS)

    Full text of publication follows: In the framework of the development of generation IV concepts, the need of new assembly modelling tools arises. These concepts present more geometrical and spectral heterogeneities (radially and axially). Moreover thermal-hydraulics and neutronics aspects are so closely related that coupled computations are necessary. That raises the need for more precise and flexible tools presenting 3D features. The 3D-coupling of the thermal-hydraulic code FLICA4 with the Monte-Carlo neutronics code TRIPOLI4 was developed in that frame. This new tool enables for the first time to obtain realistic axial and radial power profiles with real feedback effects in an assembly where thermal-hydraulics and neutronics effects are closely related. The BWR is the existing concept presenting the closest heterogeneous characteristics to the various new proposed concepts. This assembly design is thus chosen to compare this new tool, presenting real 3D characteristics, to the existing ones. For design studies, the evaluation of the assembly behavior, currently necessitate a depletion scheme using a 3D thermal-hydraulics assembly calculation coupled with a 1D axial neutronics deterministic calculation (or an axial power profile chosen as a function of the assembly averaged burn-up). The 3D neutronics code (CRONOS2) uses neutronic data built by 2D deterministic assembly calculations without feedback. These cross section libraries enable to take feedbacks into account via parameters such as fuel temperature, moderator density and temperature (history parameters such as void and control rod are not useful in design evaluation). Recently, the libraries build-up has been replaced by on line multi-2D deterministic assembly calculations performed by a cell code (APOLLO2). That avoids interpolation between pre-determined parameters in the cross-section data used by the 1D axial neutronics calculation and enable to give a radial power map to the 3D thermal

  19. Crescimento de biótipos de capim-arroz em condição de competição Growth of barnyardgrass biotypes under competition

    OpenAIRE

    E.A. Ferreira; G. Concenço; I Aspiazu; Silva, A. A.; L Galon; A.F. Silva; F.A. Ferreira; J.A. Noldin

    2008-01-01

    Objetivou-se com este trabalho avaliar o crescimento de biótipos de capim-arroz resistente (R) e suscetível (S) ao herbicida quinclorac em competição entre biótipos e dentro do mesmo biótipo. Para isso, plantas de biótipos de capim-arroz R e S ao quinclorac foram cultivadas em diferentes arranjos na unidade experimental. Os tratamentos foram dispostos no esquema fatorial 2 x 6, com quatro repetições, em delineamento experimental completamente casualizado. Aos 45 dias após emergência, determin...

  20. Especificación e implementación de un lenguaje de programación lógica con tipos

    OpenAIRE

    Delrieux, Claudio; Cáccamo, Mario

    1995-01-01

    Se presenta la especificación de un lenguaje de programación en lógica con tipos polimorfos, junto con el desarrollo de un intérprete para el mismo en PROLOG. El polimorfismo permite, entre otras cosas, programar procedimientos genéricos, con argumentos que no tienen un tipo declarado estáticamente. La incorporación de un sistema de tipos mejora el soporte de abstracción provisto por los lenguajes de programación lógica. Los tipos proveen un lenguaje claro para la especificación de interfa...

  1. Estimación de un modelo de equilibrio de cartera para el tipo de cambio peseta-dolar.

    OpenAIRE

    Sosvilla Rivero, Simón

    1992-01-01

    En este trabajo se estudia la posible relevancia del modelo de equilibrio de cartera a la hora de explicar el comportamiento del tipo de cambio peseta-dólar durante el período 1977-1988. Con el fin de tratar adecuadamente la no estacionariedad en los tipos de cambio y en sus posibles determinantes de acuerdo con el modelo propuesto, examinamos la eventual existencia de una relación estructural entre dichas variables por medio del análisis de cointegración y de su concepto asociado de modelo d...

  2. Material de banda intermedia basado en un compuesto semiconductor de tipo calcogenuro de estaño

    OpenAIRE

    Wahnón Benarroch, Perla; Palacios Clemente, Pablo; Sánchez Noriega, Kefrén; Aguilera Bonet, Irene; Seminovski Pérez, Yohanna; Conesa Cegarra, José Carlos; Lucena García, Raquel; Gamarra Sánchez, Daniel

    2009-01-01

    Material de banda intermedia basado en un compuesto semiconductor de tipo calcogenuro de estaño. La invención se refiere a compuestos formados mediante la introducción, dentro de un semiconductor de partida que es de tipo calcogenuro de estaño tetravalente octaédricamente coordinado, de un elemento de transición en posición octaédrica, para la fabricación de materiales o dispositivos para aplicaciones fotónicas. El elemento de transición genera una banda intermedia par...

  3. Material de banda intermedia basado en un compuesto semiconductor de tipo calcogenuro de estaño

    OpenAIRE

    Wahnón Benarroch, Perla; Palacios Clemente, Pablo; Sánchez Noriega, Kefrén; Aguilera Bonet, Irene; Seminovski Pérez, Yohanna; Conesa Cegarra, José Carlos

    2009-01-01

    Material de banda intermedia basado en un compuesto semiconductor de tipo calcogenuro de estaño. La invención se refiere a compuestos formados mediante la introducción, dentro de un semiconductor de partida que es de tipo calcogenuro de estaño tetravalente octaédricamente coordinado, de un elemento de transición en posición octaédrica, para la fabricación de materiales o dispositivos para aplicaciones fotónicas. El elemento de transición genera una banda intermedia parcialmente ocupada separa...

  4. Adaptabilidade e estabilidade de genótipos de milho em diferentes condições ambientais

    OpenAIRE

    RIBEIRO PEDRO HÉLIO ESTEVAM; RAMALHO MAGNO ANTONIO PATTO; FERREIRA DANIEL FURTADO

    2000-01-01

    O objetivo deste trabalho foi estudar os fatores de adaptabilidade e estabilidade de 20 genótipos de milho (Zea mays L.), divididos em quatro grupos genéticos (híbridos simples, duplos e triplos e cultivares de polinização livre), em diferentes níveis de fertilidade, épocas de semeadura e locais do Estado de Minas Gerais. Entre os genótipos avaliadas, o que apresentou maior adaptabilidade foi o híbrido triplo Hatã 3012. Observou-se que a produtividade média dos híbridos triplos foi superior à...

  5. Abordagem bayesiana para avaliação da adaptabilidade e estabilidade de genótipos de alfafa

    OpenAIRE

    Moysés Nascimento; Silva, Fabyano Fonseca e; Thelma Sáfadi; Ana Carolina Campana Nascimento; Reinaldo de Paula Ferreira; Cosme Damião Cruz

    2011-01-01

    O objetivo deste trabalho foi propor uma abordagem bayesiana do método de Eberhart & Russell para avaliar a adaptabilidade e da estabilidade fenotípica de genótipos de alfafa (Medicago sativa), bem como avaliar a eficiência da utilização de distribuições a priori informativas e pouco informativas. Foram utilizados dados de um experimento em blocos ao acaso, no qual se avaliou a produção de massa de matéria seca de 92 genótipos. A metodologia bayesiana proposta foi implementada no programa liv...

  6. Neumotórax espontáneo asociado a fibrosis pulmonar en un paciente con neurofibromatosis tipo 2

    OpenAIRE

    Alcalá Cerra, Gabriel; Moscote Salazar, Luis Rafael; Lozano Tagua, Carlos Fernando; Sabogal Barrios, Rubén

    2010-01-01

    El compromiso pulmonar en pacientes con neurofibromatosis ha sido reiteradamente descrito como una complicación muy rara en la variedad tipo 1. Se caracteriza por enfermedad pulmonar intersticial difusa, fibrosis pulmonar, neoplasias torácicas y formación de bulas, estas últimas, con alto riesgo de ruptura. Describimos un caso de neumotórax espontáneo en una paciente con neurofibromatosis tipo 2, como consecuencia de cambios fibróticos pulmonares. A nuestro conocimiento, esta asociación no ha...

  7. Apego al tratamiento farmacológico en pacientes con diagnóstico de diabetes mellitus tipo 2

    OpenAIRE

    Durán-Varela Blanca Rosa; Rivera-Chavira Blanca; Franco-Gallegos Ernesto

    2001-01-01

    Objetivos. Establecer la frecuencia de apego al tratamiento farmacológico en pacientes diabéticos tipo 2, relacionarla con el control metabólico e identificar factores que influyen para el no apego. Material y métodos. Estudio transversal comparativo, efectuado en 150 pacientes con diabetes mellitus tipo 2 de la unidad de medicina familiar No. 33 del Instituto Mexicano del Seguro Social de Chihuahua, Chih., México, hecho entre 1997 y 1998. Se midió el apego con cuenta de tabletas en su domici...

  8. Eficacia de la Publicidad Emocional. Un Estudio Comparativo entre la Ejecución de Tipo Emocional e Informativa

    OpenAIRE

    Ceruelo Ruiz, Cristina; Gutiérrez Arranz, Ana María

    2003-01-01

    [ES]¿Qué tipo de publicidad es la más eficaz? Ésta se podría considerar como la pregunta que todas las empresas se realizan a la hora de planificar una campaña publicitaria. El objetivo que se plantea el presente trabajo es éste precisamente, estudiar en qué situaciones es más eficaz utilizar un estilo publicitario u otro. En concreto nos centramos en dos tipos de ejecución, la informativa y la emocional. Hasta ahora la actuación de estos dos estilos publicitarios sobre las respuestas del con...

  9. Tipos de incontinencia urinaria en personas mayores de 65 años institucionalizadas: tratamiento y cuidados

    OpenAIRE

    García Hernández, Misericordia.

    2013-01-01

    El presente estudio analiza la prevalencia de incontinencia urinaria en personas mayores de 65 años, institucionalizadas en centros socio-sanitarios, en unidades de larga estancia, y residencias públicas de Cataluña; así como los tipos de incontinencia y el abordaje de la misma. También se analiza la relación entre incontinencia, tipo, abordaje y la presencia o no de dependencia física y/o alteración cognitiva, mediante un estudio descriptivo e inferencial. Los resultados obtenidos nos de...

  10. Análisis del crecimiento y calidad de semillas de tres tipos de chile (Capsicum annuum L.).

    OpenAIRE

    Ayala Villegas, Misael Jorge

    2012-01-01

    El chile es una de las hortalizas más importante a nivel mundial. México es de los países con mayor producción y al ser centro de origen y domesticación de la especie Capsicum annuum L. tiene una amplia diversidad de materiales agrupados en tipos. Los estudios referentes al crecimiento y desarrollo de la planta y semilla de chile, son escasos y no son recientes. Aquí, se comparó el crecimiento de la planta de los tipos de árbol, ancho y guajillo y se evaluó la calidad de semillas durante su d...

  11. Evaluación del riesgo de Diabetes Tipo 2 en la atención primaria de la salud

    OpenAIRE

    Martins, Maria José Rosado; José, Helena Maria Guerreiro

    2013-01-01

    RESUMO: Objetivos: conhecer os fatores de risco para a diabetes tipo 2 dos utentes com 45 e mais anos e estruturar um projeto orientado para a prevenção da diabetes mellitus tipo 2. Método: estudo descritivo e correlacional, de abordagem quantitativa. Amostra foi de 200 utente, inscritos na Unidade Funcional de Loulé, Portugal. Este estudo foi realizado de acordo com a declaração de Helsinque, que estabelece as normas fundamentais para a ética em pesquisa internacional. Resultados: foram dete...

  12. Nivel de depresión experimentada por una muestra de cuidadores informales de pacientes con demencia tipo Alzheimer

    OpenAIRE

    Ara Mercedes Cerquera Córdoba; Daysy Katherine Pabón Poches; Diana Marcela Uribe Báez

    2012-01-01

    Estudio transversal descriptivo, tipo cuantitativo, cuyo objetivo fue identificar el nivel de depresión en una muestra de cuidadores informales de pacientes con Alzheimer, compuesta por 52 sujetos. Se tuvo en cuenta los siguientes criterios de inclusión: ser cuidador informal principal, tener mínimo 3 meses cuidando al enfermo, no recibir ningún tipo de remuneración económica y cuidar pacientes no institucionalizados. Se aplicó el Inventario de Depresión Estado/ Rasgo (IDER). Los resultados a...

  13. Análisis de viabilidad del uso d materiales compuestos en un puente peatonal tipo viga

    OpenAIRE

    Canales Beltrán, María del Mar

    2009-01-01

    Tras realizar el análisis del mismo puente peatonal, con materiales convencionales (acero y hormigón) y con materiales compuestos (perfiles de extrusión formados por laminados en fibra de carbono, y tablero del puente en estructura tipo sándwich con núcleo de tipo nido de abeja), se llega a la conclusión que desde el punto de vista del cálculo estructural, sin entrar en analizar los costes de implementación de cada una de las soluciones, que se encuentran fuera del ámbito de aplicación de est...

  14. Psicologia Ambiental e estudos pessoas-ambiente: que tipo de colaboração multidisciplinar?

    Directory of Open Access Journals (Sweden)

    Gabriel Moser

    2005-01-01

    Full Text Available Este artigo procura definir quais as colaborações existentes entre a Psicologia Ambiental e os diversos estudos pessoas-ambiente a partir dos trabalhos inscritos no Congresso IAPS-16 (Paris, 2000. Na relação entre transdiciplinaridade, pluridisciplinaridade e interdisciplinaridade, entende que o funcionamento científico é necessariamente mono-disciplinar, enquanto a intervenção nas relações pessoas-ambiente envolve uma dinâmica complexa. Quanto à intervenção (manejo sócio-ambiental, distingue dois tipos de funcionamento: interdisciplinar e transdisciplinar. Conclui por um conhecimento que integre as diversas abordagens disciplinares em abordagens transdiciplinares.

  15. Esporotricosis cutánea diseminada con compromiso articular en una mujer con diabetes tipo 2

    Directory of Open Access Journals (Sweden)

    Sendy Solorzano

    2015-01-01

    Full Text Available La esporotricosis diseminada es una presentación infrecuente de esta micosis. Aunque ha sido descrita en sujetos inmunocompetentes, con frecuencia existe compromiso de la inmunidad mediada por células T. Reportamos el caso de una mujer con diabetes tipo 2 no controlada que desarrolló esporotricosis cutánea diseminada. El curso de la enfermedad presentó varias complicaciones que incluyeron hepatitis secundaria a itraconazol y artritis de la rodilla con cultivo positivo para Sporothrix schenckii durante el tratamiento con solución saturada de ioduro de potasio. La discusión del caso incluye aspectos de la patogénesis de la esporotricosis diseminada y el manejo de la infección y sus complicaciones.

  16. QUEIJO DO MARAJÓ TIPO CREME: PARÂMETROS FÍSICO-QUÍMICOS E SENSORIAIS

    OpenAIRE

    Elaine Lopes Figueiredo; José de Brito Lourenço Júnior; Maricelly Uria Toro; Suely Cristina Gomes de Lima

    2011-01-01

    Foram produzidos queijos do "Marajó" tipo creme em dois locais (Local A - Universidade do Estado do Pará e Local B - Laticínios de Soure, Ilha do Marajó, Pará). Foram determinados os níveis de umidade, lipídeo, colesterol, ácido linoléico conjugado (CLA), proteína, resíduo mineral fixo, carboidrato, valor calórico, acidez, pH e minerais (cálcio, fósforo, potássio, sódio e zinco) nos queijos. A análise sensorial constou de perfil de características e teste de aceitação. Os teores de gordura no...

  17. Efectos del sistema de tipos de cambio fijos sobre la producción en Venezuela

    OpenAIRE

    Trías Ramos, Gabriel Francisco

    2014-01-01

    El control cambiario es una medida de política cambiaria adoptada por el Gobierno de Venezuela en febrero de 2003. Consiste en un sistema de tipo de cambio fijo entre el bolívar, lamoneda venezolana, y el dólar de Estados Unidos. Esta medida surge con carácter temporal debido a la situación de crisis política y económica que ocurría en el país. Sin embargo,este sistema lleva implantado en Venezuela los últimos 11 años y sigue vigen te hoy en día. La presente investigación anali...

  18. Fatores associados à qualidade de vida de jovens com diabetes mellitus do tipo 1

    Directory of Open Access Journals (Sweden)

    Tatiana de Sá Novato

    2011-06-01

    Full Text Available O objetivo deste estudo foi realizar a revisão bibliográfica acerca dos fatores que podem influenciar a Qualidade de Vida Relacionada à Saúde (QV dos adolescentes com diabetes mellitus tipo 1, por meio da estratégia de PICO. As bases de dados utilizadas foram PubMed/MEDLINE, ISI Web of Knowledge e EMBASE. O maior levantamento dos artigos foi possível com a combinação de descritores padronizados e não padronizados. Apesar da QV ser um construto específico de avaliação dos aspectos relacionados às repercussões da saúde, doença e tratamento, os fatores sócio-demográficos, psicossociais e relacionados à família parecem influenciar de forma significativa na QV.

  19. Propuesta de mejora educativa para pacientes diabéticos tipo 2

    OpenAIRE

    Marzo Zubeldía, María Adela

    2014-01-01

    La diabetes mellitus tipo 2 (DM2) es una enfermedad crónica que se establece como la primera causa de la retinopatía, la insuficiencia renal y la amputación de pie. Para 2030 se prevé que esta condición patológica alcance la proporción de pandemia. La prevención de la misma es posible mediante la promoción de hábitos de vida saludables. Por ello, las estrategias de abordaje sanitario para la DM2 fortalecen intervenciones de educación en salud. En el presente trabajo se propone un material edu...

  20. Bases Genéticas de la Ataxia Espinocerebelosa tipo 2

    Directory of Open Access Journals (Sweden)

    Luis E. Almaguer Mederos

    2008-01-01

    Full Text Available Aborda la genética clásica y molecular de la ataxia espinocerebelosa tipo 2, enfermedad neuro degenerativa que alcanza las mayores tasas de prevalencia e incidencia del mundo en Holguín, y que constituye un serio problema de salud. Desde el descubrimiento de la mutación causal de la enfermedad en 1996, se han obtenido avances significativos en la comprensión de los mecanismos moleculares involucrados en el proceso patológico, y en sus implicaciones clínicas. Tales hallazgos han permitido el desarrollo de modelos celulares y animales de la enfermedad, que constituyen herramientas indispensables para la búsqueda de alternativas terapéuticas orientadas al tratamiento de las personas afectadas.

  1. Tamizaje de Diabetes Mellitus tipo 2 en atención primaria

    Directory of Open Access Journals (Sweden)

    Adriana Laclé

    2006-03-01

    Full Text Available Introducción: Actualmente en Costa Rica debería considerarse la Diabetes Mellitus tipo 2, un problema de salud pública, por el impacto de sus complicaciones crónicas tanto en el ámbito individual y familiar, como en lo económico, en la escala nacional. Su detección y tratamiento temprano ha demostrado que reduce la carga de sus complicaciones, por lo que su tamizaje podría ser oportuno en personas que tengan factores de riesgo asociados. El objetivo de este estudio fue valorar los resultados de la implementación de un tamizaje de la diabetes tipo 2 a nivel de atención primaria, en personas en riesgo de desarrollada. Metodología: El tamizaje se efectuó durante el año 2000, en la población adulta con al menos un factor de riesgo asociado, en 6 Equipos Básicos de Atención Integral en Salud (EBAlS, del Área de Salud 3 de Desamparados. Este se incorporó en el quehacer diario del EBAIS, sin alterar su programación. Se utilizaron cuatro estrategias para la realización del tamizaje: la oportunista, la selectiva, las programadas a grupos cautivos u organizacionales, y las jornadas de atención comunal o nacional. Resultados: Durante 2000 se lograron captar 174 diabéticos, diagnosticados por primera vez, o que ya lo eran, pero que no estaban registrados al carecer de control en el EBAlS, aunque vivían en el área. La estrategia predominante fue la oportunista, cuya responsabilidad recayó principalmente en el médico. La estrategia programada se realizó por medio de "jornadas" durante las ferias de salud en cada EBAlS y en el Día Mundial de la Diabetes, como parte de la jornada nacional; la cautiva se llevó a cabo en el Hogar Diurno de Ancianos. La selectiva, mediante visita domiciliar, fue mínima, por falta de glucómetros. Estas estrategias permitieron que la cobertura de captación aumentara de un 50% a finales de 1999 a un 70.2% a finales de 2000, considerando la cobertura como el porcentaje dado por el número de pacientes

  2. Esporotricosis cutánea diseminada con compromiso articular en una mujer con diabetes tipo 2

    Directory of Open Access Journals (Sweden)

    Sendy Solorzano

    2015-03-01

    Full Text Available La esporotricosis diseminada es una presentación infrecuente de esta micosis. Aunque ha sido descrita en sujetos inmunocompetentes, con frecuencia existe compromiso de la inmunidad mediada por células T. Reportamos el caso de una mujer con diabetes tipo 2 no controlada que desarrolló esporotricosis cutánea diseminada. El curso de la enfermedad presentó varias complicaciones que incluyeron hepatitis secundaria a itraconazol y artritis de la rodilla con cultivo positivo para Sporothrix schenckii durante el tratamiento con solución saturada de ioduro de potasio. La discusión del caso incluye aspectos de la patogénesis de la esporotricosis diseminada y el manejo de la infección y sus complicaciones.

  3. AVALIAÇÃO SENSORIAL DE IOGURTE DE AÇAÍ (EUTERPE OLERACEA MART) TIPO "SUNDAE"

    OpenAIRE

    Pedro Danilo De Oliveira,; Suely Cristina Gomes de Lima; José de Brito Lourenço Júnior; Éder Augusto Furtado Araújo

    2011-01-01

    Diversos produtos de leites fermentados são atualmente produzidos, em diferentes países, entretanto, o iogurte é provavelmente o leite fermentado mais popular e considerado um dos mais importantes derivados lácteos para a alimentação humana. O objetivo deste trabalho foi o estudo da viabilidade da elaboração de um iogurte sabor açaí, tipo "sundae", bem como sua aceitação. As matérias-primas utilizadas, leite e açaí, foram caracterizadas físico quimicamente, através de determinação de pH, acid...

  4. Diabetes mellitus tipo 2 y frecuencia de acciones para su prevención y control

    OpenAIRE

    Aída Jiménez-Corona; Aguilar-Salinas, Carlos A; Rosalba Rojas-Martínez; Mauricio Hernández-Ávila

    2013-01-01

    Objetivo. Estimar la frecuencia de medidas de prevención y control para diabetes tipo 2 en población mexicana. Material y métodos. La ENSANUT 2012 es una encuesta con representatividad nacional, con diseño de muestreo probabilístico, multietápico, estratificado y por conglomerados. En este análisis se utilizó la información de 46 277 adultos mayores de 20 años. El análisis se efectuó utilizando Stata 12. Resultados. La prevalencia de diabetes por diagnóstico previo fue de 9.2% (6.4 millones)...

  5. Problemas tipo en teoría de la decisión

    OpenAIRE

    Alonso Sanz, Ramón

    1997-01-01

    El objetivo de este artículo es ilustrar las técnicas y los conceptos básicos de la Teoría de la Decisión. Para lograr este objetivo se ha adoptado el problema tipo quizá más sencillo: el problema de la inversión. Este queda caracterizado por dos decisiones alternativas (invertir o no invertir) y dos estados de la naturaleza (apreciación y depreciación). La información adicional adopta la forma de opinión de un experto. El problema se ha resuelto en forma extensa y normal. Las consecuencias s...

  6. FITOQUÍMICOS BIOATIVOS EM FRUTOS DE GENÓTIPOS DE CAJÁ-UMBUZEIRAS

    OpenAIRE

    Aldenise Chagas Curvêlo Gonçalves MOREIRA; Joana D’arc Maria NASCIMENTO; Renata Araújo Milanez de Sena ANDRADE; Maria Inês Sucupira MACIEL; Enayde de Almeida MELO

    2012-01-01

    Com o objetivo de quantificar os fitoquímicos bioativos em cajá-umbu foram utilizadas polpas de frutos de 4 genótipos (G 2.2, G 2.3, G 3.1 e G 3.2) procedentes do Banco de Germoplasma do Instituto Agronômico de Pernambuco (IPA). Os teores de fenólicos, flavonoides e flavonóis totais e taninos condensados foram quantificados por método espectrofotométrico, de ácido ascórbico por método titulométrico e de carotenoides por método cromatográfico e espectrofotométrico. Os g...

  7. Comorbidades médicas em pacientes ambulatoriais com transtorno do humor bipolar tipo I

    Directory of Open Access Journals (Sweden)

    Camila Luzia Roganti Leite Moreira

    2011-01-01

    Full Text Available CONTEXTO: O transtorno do humor bipolar (THB está associado a altas taxas de comorbidades médicas gerais (CMGs e fatores de risco para problemas médicos, porém há escassos relatos sobre a prevalência dessas condições em brasileiros com THB. OBJETIVO: Descrever a prevalência de CMGs em uma amostra de pacientes com THB tipo I. MÉTODOS: Dados clínicos de 195 pacientes com THB tipo I foram revisados para identificação de CMGs. Pacientes com e sem CMGs foram comparados usando o teste não paramétrico Mann-Whitney e o teste qui-quadrado. RESULTADOS: Sessenta e três por cento dos pacientes relataram pelo menos uma comorbidade médica. As condições mais prevalentes foram: enxaqueca (31,8%, hipotireoidismo (24,1%, hipertensão (11,3%, traumatismo craniano (10,3%, asma (9,7%, epilepsia (8,2%, diabetes (5,1%, acidente vascular cerebral (2,1% e hipertireoidismo (1%. Idade e duração da doença foram positivamente associadas à presença de CMGs (p < 0,001. CONCLUSÃO: Em concordância com relatos prévios, a maioria dos pacientes apresentou pelo menos uma doença médica. A principal limitação deste estudo reside no fato de o diagnóstico de CMGs ter sido baseado no autorrelato. Há escassos estudos visando à identificação de comorbidades médicas na população brasileira com THB e este estudo pode contribuir para melhor vigilância diagnóstica, avaliação, tratamento e diminuição da sobrecarga associada ao THB.

  8. Presencia de afecciones oftalmológicas en pacientes con diabetes mellitus tipo 2

    Directory of Open Access Journals (Sweden)

    Bárbara Suárez Rodríguez

    2011-12-01

    Full Text Available Fundamento: la diabetes mellitus es un importante problema de salud a nivel mundial, por ser una de las afecciones no transmisibles más frecuentes, así como por la severidad y diversidad de sus complicaciones crónicas, que incluyen al órgano de la visión. Objetivo: identificar la presencia de afecciones oftalmológicas en pacientes con diabetes mellitus tipo 2. Métodos: estudio descriptivo de serie de casos realizado en el Centro de Atención y Educación al Diabético, de Cienfuegos, en el período comprendido entre enero y junio del 2010, que incluyó a los pacientes diabéticos tipo 2 que recibieron ingreso ambulatorio en dicha institución. Variables analizadas: edad, sexo, color de la piel, antecedentes patológicos personales, factores de riesgo, afecciones  oftalmológicas declaradas y ocultas en estos pacientes, así como el grado de satisfacción de los diabéticos ingresados en el centro. Resultados: el mayor por ciento de pacientes correspondió al sexo femenino (58,7 % y al grupo de edad entre 50-69 años (34, 6 %; las afecciones  generales y oftalmológicas referidas con mayor frecuencia fueron la hipertensión arterial (52, 4 % y la catarata (17, 8 % respectivamente; entre las oftalmológicas ocultas predominaron la catarata y la sospecha de glaucoma. El 96,6 % de los diabéticos estudiados están satisfechos con la atención recibida en el centro. Conclusiones: es frecuente en nuestro medio que los pacientes diabéticos sufran afecciones oftalmológicas no diagnosticadas. En una cifra considerable de pacientes se asocia la diabetes mellitus con la hipertensión arterial y la catarata.

  9. Tipos de hogar, ciclo de vida familiar y pobreza en Costa Rica 1987-2002

    Directory of Open Access Journals (Sweden)

    Barquero, Jorge

    2004-07-01

    Full Text Available El propósito de este estudio fue el de explorar las condiciones vulnerabilidad sociodemográfica en Costa Rica, a partir del análisis de los cambios en los tipos de hogar y el ciclo de vida de las familias en condiciones de pobreza, utilizando información de las Encuestas de Hogares de 1987, 1994 y 2002. Los principales hallazgos revelan modificaciones importantes en la estructura y composición de los hogares y familias en el periodo de estudio, asociado a cambios en la dinámica sociodemográfica de la sociedad costarricense. La evolución en la incidencia de la pobreza por tipo de hogar muestra que ésta es mayor entre los hogares nucleares que cuentan con hijos y al convertirse en monoparentales. La incidencia es más alta en 1987, se reduce para 1994 y prácticamente se mantiene para el 2002. No obstante que en todas las fases del ciclo de vida familiar la incidencia de la pobreza disminuyó en el periodo 1987-1994, en el periodo más reciente al 2002 la incidencia es mayor en las etapas en que las familias poseen más hijos dependientes menores de 18 años, lo que expone a estas familias a una mayor vulnerabilidad a situaciones de pobreza. Los hogares y familias con mayor riesgo de vulnerabilidad ante la pobreza, se hallaron entre aquellos con mayor cantidad de miembros dependientes menores de edad y jefeados por mujeres. No se encontraron evidencias significativas para afirmar que el estancamiento observado en los niveles de pobreza en el país hasta el 2002, fuese producto de los cambios encontrados en los patrones familiares, aunque ciertamente se hace necesario profundizar el análisis de las interrelaciones entre pobreza y cambios demográficos.

  10. A Molecular-Orbital Model for Amorphous Group IV Semiconductors

    OpenAIRE

    M. Grado-Caffaro; M. A. Grado-Caffaro

    1997-01-01

    A theoretical model based on standard molecular-orbital theory and extended Hückel approach is proposed. This model is valid for amorphous group IV semiconductors and represents a substantial improvement of the state of the art.

  11. Two distinct variants of erythrocyte spectrin beta IV domain.

    Science.gov (United States)

    Pothier, B; Alloisio, N; Morlé, L; Maréchal, J; Barthélemy, H; Ducluzeau, M T; Dorier, A; Delaunay, J

    1989-11-01

    We report two distinct variants affecting the beta IV domain of erythrocyte spectrin, designated spectrin Saint-Chamond and spectrin Tlemcen. They were discovered in a French family and an Algerian individual, respectively. They appeared clinically and morphologically asymptomatic in the heterozygous state. In two-dimensional maps of spectrin partial digests, both mutants were manifested by cathodic shifts (with no change of the molecular weights) of the peptides that cover the N-terminal region of spectrin beta IV domain. The relevance of the abnormal peptides to the beta IV domain was established by quantitative analysis and by Western blotting using anti-beta IV domain-specific antibodies. These two variants are thus far the most distal variants of spectrin to be defined on an unequivocal structural basis. PMID:2807277

  12. Vanhemmuuden vahvistaminen : avoimessa päiväkodissa

    OpenAIRE

    Tikka, Liisa

    2012-01-01

    Opinnäytetyöni tarkoituksena oli selvittää, voimaannuttaako avoin päiväkoti siellä käyviä vanhempia ja kuinka avoimessa päiväkodissa voidaan vaikuttaa vanhempien voimaantumiseen ja tukemiseen. Tavoitteena oli saada tietoa erään Espoossa sijaitsevan avoimen päiväkodin merkittävyydestä vanhemmuuden tukemiseen, asiakkaiden omasta näkökulmasta. Tietämys vanhempien kokemuksista avoimessa päiväkodissa käymisestä auttaa myös työntekijöitä palautteen saamisessa, palvelun kehittämisessä sekä asiakaslä...

  13. Central line infections - hospitals

    Science.gov (United States)

    ... risk is higher if you: Are in the intensive care unit (ICU) Have a weakened immune system or serious ... unless you have washed your hands. Tell your nurse if your central line: Gets dirty Is coming ...

  14. Central Data Exchange

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Central Data Exchange (CDX) enables fast, efficient and more accurate environmental data submissions from state and local governments, industry and tribes to...

  15. "Central Station" Londonis

    Index Scriptorium Estoniae

    2000-01-01

    Londoni galeriis Milch seitsme läti, leedu ja eesti kunstniku projekt "Central Station". Kuraatorid Lisa Panting, Sally Tallant. Eestist osalevad Hanno Soans (Catarina Campinoga koostöös valminud video), Kiwa, Kai Kaljo

  16. Central Asian Republic Info

    Data.gov (United States)

    US Agency for International Development — CAR Info is designed and managed by the Central Asian Republic Mission to fill in the knowledge and reporting gaps in existing agency systems for that Mission. It...

  17. Central nervous system

    Science.gov (United States)

    The central nervous system is composed of the brain and spinal cord. Your brain and spinal cord serve as the main "processing center" for your entire nervous system. They control all the workings of your body.

  18. Central nervous system resuscitation

    DEFF Research Database (Denmark)

    McIntosh, T K; Garde, E; Saatman, K E;

    1997-01-01

    Traumatic injury to the central nervous system induces delayed neuronal death, which may be mediated by acute and chronic neurochemical changes. Experimental identification of these injury mechanisms and elucidation of the neurochemical cascade following trauma may provide enhanced opportunities...

  19. Testing for Weak Instruments in Linear IV Regression

    OpenAIRE

    Stock, James H.; Motohiro Yogo

    2002-01-01

    Weak instruments can produce biased IV estimators and hypothesis tests with large size distortions. But what, precisely, are weak instruments, and how does one detect them in practice? This paper proposes quantitative definitions of weak instruments based on the maximum IV estimator bias, or the maximum Wald test size distortion, when there are multiple endogenous regressors. We tabulate critical values that enable using the first-stage F-statistic (or, when there are multiple endogenous regr...

  20. DSM-5 Personality Traits and DSM-IV Personality Disorders

    OpenAIRE

    Hopwood, Christopher J.; Thomas, Katherine M.; Markon, Kristian E.; Wright, Aidan G. C.; Krueger, Robert F.

    2012-01-01

    Two issues pertinent to the DSM-5 proposal for personality pathology, the recovery of DSM-IV personality disorders (PDs) by proposed DSM-5 traits and the validity of the proposed DSM-5 hybrid model which incorporates both personality pathology symptoms and maladaptive traits, were evaluated in a large undergraduate sample (N = 808). Proposed DSM-5 traits as assessed with the Personality Inventory for DSM-5 explained a substantial proportion of variance in DSM-IV PDs as assessed with the Perso...

  1. COBRA-IV: the model and the method

    International Nuclear Information System (INIS)

    The objective of this report is to present the mathematical basis of the COBRA-IV computer program (Wheeler et al., 1976) being developed by Battelle, Pacific Northwest Laboratory. The COBRA-IV code is an extended version of the COBRA-IIIC subchannel analysis code that computes the flow and enthalpy distributions in nuclear fuel rod bundles and cores for both steady state and transient conditions (Rowe, 1973)

  2. Nordic Nuclear Materials Forum for Generation IV Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Anghel, C. (Studsvik Nuclear AB, Nykoeping (Sweden)); Penttilae, S. (Technical Research Centre of Finland, VTT (Finland))

    2010-03-15

    A network for material issues for Generation IV nuclear power has been initiated within the Nordic countries. The objectives of the Generation IV Nordic Nuclear Materials Forum (NOMAGE4) are to put the basis of a sustainable forum for Gen IV issues, especially focussing on fuels, cladding, structural materials and coolant interaction. Other issues include reactor physics, dynamics and diagnostics, core and fuel design. The present report summarizes the work performed during the year 2009. The efforts made include identification of organisations involved in Gen IV issues in the Nordic countries, update of the forum website, http://www.studsvik.se/GenerationIV, and investigation of capabilities for research within the area of Gen IV. Within the NOMAGE4 project a seminar on Generation IV Nuclear Energy Systems has been organized during 15-16th of October 2009. The aim of the seminar was to provide a forum for exchange of information, discussion on future research needs and networking of experts on Generation IV reactor concepts. As an outcome of the NOMAGE4, a few collaboration project proposals have been prepared/planned in 2009. The network was welcomed by the European Commission and was mentioned as an exemplary network with representatives from industries, universities, power companies and research institutes. NOMAGE4 has been invited to participate to the 'European Energy Research Alliance, EERA, workshop for nuclear structural materials' http://www.eera-set.eu/index.php?index=41 as external observers. Future plans include a new Nordic application for continuation of NOMAGE4 network. (author)

  3. Nanoscale Adhesion Forces of Pseudomonas aeruginosa Type IV Pili

    OpenAIRE

    Beaussart, Audrey; Baker, Amy E.; Kuchma, Sherry L.; El-Kirat-Chatel, Sofiane; O’Toole, George A; Yves F Dufrêne

    2014-01-01

    A variety of bacterial pathogens use nanoscale protein fibers called type IV pili to mediate cell adhesion, a primary step leading to infection. Currently, how these nanofibers respond to mechanical stimuli and how this response is used to control adhesion is poorly understood. Here, we use atomic force microscopy techniques to quantify the forces guiding the adhesion of Pseudomonas aeruginosa type IV pili to surfaces. Using chemical force microscopy and single-cell force spectroscopy, we sho...

  4. Type IV collagen-degrading enzyme activity in hepatocellular carcinoma.

    OpenAIRE

    Nakatsukasa,Harushige

    1986-01-01

    Type IV collagen-degrading enzyme activity was measured in liver homogenate obtained from 10 patients with hepatocellular carcinomas. Type IV collagen, the enzyme substrate, was extracted from human placenta with pepsin digestion, and labeled with [1-14C] acetic anhydride. The homogenate was preincubated with p-aminophenylmercuric acetate to activate the latent form of the enzyme, and then the enzyme activity was measured at pH 7.5 by adding a substrate mixture. Referring to previous reports,...

  5. Nordic Nuclear Materials Forum for Generation IV Reactors

    International Nuclear Information System (INIS)

    A network for material issues for Generation IV nuclear power has been initiated within the Nordic countries. The objectives of the Generation IV Nordic Nuclear Materials Forum (NOMAGE4) are to put the basis of a sustainable forum for Gen IV issues, especially focussing on fuels, cladding, structural materials and coolant interaction. Other issues include reactor physics, dynamics and diagnostics, core and fuel design. The present report summarizes the work performed during the year 2009. The efforts made include identification of organisations involved in Gen IV issues in the Nordic countries, update of the forum website, http://www.studsvik.se/GenerationIV, and investigation of capabilities for research within the area of Gen IV. Within the NOMAGE4 project a seminar on Generation IV Nuclear Energy Systems has been organized during 15-16th of October 2009. The aim of the seminar was to provide a forum for exchange of information, discussion on future research needs and networking of experts on Generation IV reactor concepts. As an outcome of the NOMAGE4, a few collaboration project proposals have been prepared/planned in 2009. The network was welcomed by the European Commission and was mentioned as an exemplary network with representatives from industries, universities, power companies and research institutes. NOMAGE4 has been invited to participate to the 'European Energy Research Alliance, EERA, workshop for nuclear structural materials' http://www.eera-set.eu/index.php?index=41 as external observers. Future plans include a new Nordic application for continuation of NOMAGE4 network. (author)

  6. Expression of Reg IV and Hath1 in neuroendocrine neoplasms

    OpenAIRE

    Heiskala, Kukka; Arola, Johanna; Heiskala, Marja; Andersson, Leif C.

    2010-01-01

    Reg IV (RELP), a Regenerating protein family member, is constitutively expressed in neuroendocrine cells of the intestinal mucosa. The helixloop-helix transcription factor Hath1 is the human homologue of murine Math1, which regulates the embryonic differentiation of neural and intestinal secretory lineage cells. Hath1 is constitutively expressed in a subset of mature secretory gastrointestinal cells. We investigated by immunohistochemistry the expression of Reg IV a...

  7. Outcome of surgical treatment of type IV capitellum frac-

    OpenAIRE

    Singh Ajay Pal; Dhammi Ish Kumar; Garg Vipul; Singh Arun Pal

    2012-01-01

    【Abstract】 Objective: Fractures of the capitellum and trochlea constitute less than 1% of all elbow fractures and a shear fracture involving the capitellum and extending medially into most of the trochlea is rarely reported. Type IV capitellum fracture is still controversial in regard to its ra-diographic appearance, surgical approach and osteosynthesis. We report 10 cases of type IV capitellum fracture with a view to elucidating its clinical features and treatment...

  8. Two-stage precipitation of neptunium (IV) oxalate

    International Nuclear Information System (INIS)

    Neptunium (IV) oxalate was precipitated using a two-stage precipitation system. A series of precipitation experiments was used to identify the significant process variables affecting precipitate characteristics. Process variables tested were input concentrations, solubility conditions in the first stage precipitator, precipitation temperatures, and residence time in the first stage precipitator. A procedure has been demonstrated that produces neptunium (IV) oxalate particles that filter well and readily calcine to the oxide

  9. Resection of the primary tumor in stage IV breast cancer

    OpenAIRE

    Shien, Tadahiko; Doihara, Hiroyoshi

    2014-01-01

    Stage IV breast cancer refers to breast cancer that has already metastasized to distant regions when initially diagnosed. Treatment for stage IV is intended to “prolong survival and palliate symptoms”. Resection of a primary tumor is considered to be “effective only at alleviating chest symptoms and providing local control” in spite of the advances of imaging examination and medication for breast cancer. Molecular target and endocrine drugs are very effective and useful to tailor-make a treat...

  10. Lens capsule as a model to study type IV collagen

    OpenAIRE

    Cummings, Christopher F.; Hudson, Billy G.

    2014-01-01

    The study of collagen IV has benefited greatly from the seminal work conducted by Arthur Veis and colleagues over three decades ago. Through a series of electron microscopy studies focused on lens basement membrane, an appreciation was gained for the distinct network-forming properties of collagen IV. Veis correctly suggested that network assembly is a phenomenon of the non-collagenous termini of the molecule. This review seeks to document how the field advanced following these seminal conclu...

  11. ADHD latent class clusters: DSM-IV subtypes and comorbidity

    OpenAIRE

    Elia, Josephine; Arcos-Burgos, Mauricio; Bolton, Kelly L.; Ambrosini, Paul J.; Berrettini, Wade; Muenke, Maximilian

    2009-01-01

    ADHD (Attention Deficit Hyperactivity Disorder) has a complex, heterogeneous phenotype only partially captured by Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria. In this report, latent class analyses (LCA) are used to identify ADHD phenotypes using K-SADS-IVR (Schedule for Affective Disorders & Schizophrenia for School Age Children-IV-Revised) symptoms and symptom severity data from a clinical sample of 500 ADHD subjects, ages 6–18, participating in an ADHD genetic st...

  12. Central Bank independence

    OpenAIRE

    Vasile DEDU; Tiberiu STOICA

    2012-01-01

    In this paper we present the key aspects regarding central bank’s independence. Most economists consider that the factor which positively influences the efficiency of monetary policy measures is the high independence of the central bank. We determined that the National Bank of Romania (NBR) has a high degree of independence. NBR has both goal and instrument independence. We also consider that the hike of NBR’s independence played an important role in the significant disin...

  13. EMT Central Offices

    OpenAIRE

    Campo Baeza, Alberto

    2001-01-01

    The brief was the construction of the Central Headquarters of the Municipal Transportation Company of Madrid (EMT) on a site edged by the train lines, near the Atocha train station. = Se trataba de la construcción de la sede central de la empresa EMT de Madrid, en un solar junto a las vías del tren cerca de la estación de Atocha.

  14. Centralization and political accountability

    OpenAIRE

    Hindriks, Jean; Lockwood, Ben

    2004-01-01

    In this paper we abstract from the usual gains and costs of decentralization (e.g. preference matching, spillovers and economies of scale). Instead we compare the political accountability of decentralized governments relative to centralized ones when there is a risk of "bad" governance. We study both the selection and incentive effects of accountability. A key aspect of centralization is to make the politician answerable to multiple constituencies subject to a common budget constraint. Our ma...

  15. SOCRATES Invades Central Europe

    OpenAIRE

    Joseph Slowinski

    1998-01-01

    The objective of this article is to explore the current reality faced by higher education students in Central and Eastern Europe and to draw out the implications of this current reality for policy makers in the future. In the article, I explore the influence of transnational corporations' training programs on education as it currently pertains to Central and Eastern European higher education and employment. In addition, multinational corporate entities exercise influence on European Union pol...

  16. Outsourcing central banking

    OpenAIRE

    Khoury, Sarkis Joseph; Wihlborg , Clas

    2005-01-01

    The literature on Currency Boards (CB) stops at the water edge in terms of dealing with the totality of the functions of a central bank. Monetary policy, and banking supervision can be "outsourced" in an open economy with substantial foreign direct investment (FDI) in the banking sector if political nationalism does not trump economic rationality. An orthodox CB renders the central banking function redundant in terms of interest rate and exchange rate determination. FDI in banking could...

  17. Dipeptidyl peptidase IV in two human glioma cell lines

    Directory of Open Access Journals (Sweden)

    A Sedo

    2009-12-01

    Full Text Available There is growing evidence that dipeptidyl peptidase IV [DPP-IV, EC 3.4.14.5] takes part in the metabolism of biologically active peptides participating in the regulation of growth and transformation of glial cells. However, the knowledge on the DPP-IV expression in human glial and glioma cells is still very limited. In this study, using histochemical and biochemical techniques, the DPP-IV activity was demonstrated in two commercially available human glioma cell lines of different transformation degree, as represented by U373 astrocytoma (Grade III and U87 glioblastoma multiforme (Grade IV lines. Higher total activity of the enzyme, as well as its preferential localisation in the plasma membrane, was observed in U87 cells. Compared to U373 population, U87 cells were morphologically more pleiomorphic, they were cycling at lower rate and expressing less Glial Fibrillary Acidic Protein. The data revealed positive correlation between the degree of transformation of cells and activity of DPP-IV. Great difference in expression of this enzyme, together with the phenotypic differences of cells, makes these lines a suitable standard model for further 57 studies of function of this enzyme in human glioma cells.

  18. Al III, Si IV, and C IV absorption toward zeta Ophiuchi: Evidence for photionized and collisionally ionized gas

    Science.gov (United States)

    Sembach, Kenneth R.; Savage, Blair D.; Jenkins, Edward B.

    1994-01-01

    We present Goddard High-Resolution Spectrograph observations at 3.5 km/s resolution and signal-to-noise ratios of 30 to 60 for the Al III, Si IV, and N V absorption lines in the far-ultraviolet spectrum of the O9.5 V star zeat Ophiuchi. The measurement reveal three types of highly ionized gas along the 140 pc line of sight. (1) Narrow components of Al III (b = 4.3 km/s, the mean value of (v(helio)) = -7.8 km/s; b = 3.2 km/s, the mean value of (v(sub helio)) = -14.4 km/s) and Si IV (b = 5.3 km/s, the mean value of (v(sub helio)) = -15.0 km/s) trace photionized gas in the expanding H II region surrounding zeta Oph. The observed magnitude and direction of the velocity offset between the Al III and Si IV profiles can be explained by models of H II regions that incorporate expansion. Narrow C IV absorption associated with the H II region is not detected. Predictions of the expected amounts of Si IV and C IV overestimate the column densities of these ions by factors of 30 and more than 10, respectively. The discrepancy may be due to the effects of elemental depletions in the gas and/or to the interaction of the stellar wind with surrounding matter. (2) Broad (b = 15 to 18 km/s) and weak Si IV and C IV absorption components are detected near the mean value of (v(sub helio)) = -26 km/s. The high-ionization species associated with these absorption components are probably produced by electron collisional ionization in a heated gas. This absorption may be physically related to the zeta Oph bow shock ot to a cloud complex situated within the local interstellar medium at d less than 60 pc. The C IV to Si IV column density ratio in this gas is 8, a factor of 6 less than conductive interface models predict, but this discrepancy may be removed by considering the effects of self-photoionization within the cooling gas in the model calculations. (3) A broad (b = 13 km/s) and weak C IV absorption feature detected at the mean value of (v(sub helio)) = -61 km/s is not seen in other

  19. Utilización de recursos faunísticos y materias primas líticas durante el Holoceno tardío en la cordillera de Chile central: un enfoque integrador desde Caletón Los Queltehues Use of faunal resources and lithic raw materials during the late Holocene in the cordillera of central Chile: an integrative approach from Caletón los Queltehues

    Directory of Open Access Journals (Sweden)

    Rafael Labarca Encina

    2012-07-01

    Full Text Available Este trabajo evalúa, desde una perspectiva tecnológica y conductual, tendencias a largo plazo de cambio y continuidad en las estrategias de aprovechamiento de recursos faunísticos y líticos en contextos de cazadores-recolectores cordilleranos de Chile central. Para esto, tomamos los datos procedentes de un contexto ubicado en la cuenca superior del río Maipo: Caletón Los Queltehues, y escogimos, de su secuencia ocupacional, los componentes Arcaico IV y Alfarero temprano (5000 a 1000 AP. Los resultados de los análisis no arrojaron mayores variaciones entre ambos períodos en términos de taxones explotados, frecuencia de partes esqueletarias, modificaciones culturales y fragmentación de los restos óseos. De manera similar, las materias primas, las categorías morfofuncionales y los tipos de desechos líticos se observaron relativamente constantes. Sólo se registraron cambios en la tasa de la depositación, la frecuencia de modificaciones naturales y la diversidad de actividades de uso/descarte lítico, las que son interpretadas como una tendencia hacia una variación en la recurrencia e intensidad de la ocupación, pero no en cuanto a su funcionalidad.This article evaluates long-term trends in change and continuity of lithic and faunal use strategies in hunter-gatherer contexts in the central Chilean cordillera from technological and behavioral perspectives. The main objective of the analysis is to articulate both lines of evidence from a behavioral and technological perspective in order to infer unknown elements of the function and organization of activities in this kind of archaeological context. As an initial example, the Archaic IV and Early Ceramic (5000-1000 BP components from a classic site located in the upper valley of the Maipo river, Caletón Los Queltehues, were analyzed in detail. The results do not show significant variation between the periods in exploited taxa, skeletal part frequencies, cultural modifications, or

  20. A COMPARATIVE CLINICAL STUDY BETWEEN IV ESMOLOL AND IV FENTANYL ON ATTENUATION OF HAEMODYNAMIC RESPONSES TO LARYNGOSCOPY AND INTUBATION

    OpenAIRE

    Abu Lais Mustaque; Usica

    2016-01-01

    INTRODUCTION Laryngoscopy and intubation is an integral part for providing general anaesthesia to patients undergoing various types of surgery. It also plays an important role in critical care units viz. for providing mechanical ventilation. It is a very essential tool in the hands of anaesthesiologist in maintaining airway. The present study is undertaken to determine and compare the efficacy of single bolus dose of IV esmolol 1 mg/kg and IV fentanyl 2 mcg/kg in attenuating...