The intersex body and the politicization of the abject in XXY

Directory of Open Access Journals (Sweden)

Leandro Colling

2011-12-01

Full Text Available What can the intersex body tell us? How does this issue get more complex if we think about its representation in the media, specially in cinema? In this article, starting from Lucia Puenzo's XXY, we pose these and other questions related to deviant bodies and desires. With a subversive and non-pathologizing discourse, XXY proposes a careful look at the subjectivities of these experiences. We argue that the film, in resonance with the queer studies, is alert to the politicization of the abject bodies.

XXI Pärnu filmifestival tuleb valikkavaga / Lii Bärlin

Index Scriptorium Estoniae

Bärlin, Lii

2007-01-01

24. ja 25. juulil näidatakse huvilistele Rakvere Teatrikinos XXI Pärnu filmifestivali raames filmide valikkava. Filme soovitavad Mark Soosaar, Rakvere Teatrikino projektijuht Jaanus Kaasik. Lisatud filmide kava

Two Boys with 47, XXY and Autism

Science.gov (United States)

Merhar, S. L.; Manning-Courtney, P.

2007-01-01

Two children with autism and Klinefelter syndrome (KS) (47, XXY) are presented. Both qualify for the diagnosis of autism based on DSM-IV with severely delayed and disordered language, difficulties with social interaction, and a restricted range of interests and activities. Both also have abnormal EEGs, and one patient has had what appear to be…

JOVENS DO SÉCULO XXI NA CULTURA ANALÓGICA DO CINECLUBE

Directory of Open Access Journals (Sweden)

Mirna Juliana Santos Fonseca

2016-07-01

THE YOUNG GENERATION OF THE XXI CENTURY AND THE FILM CLUB ANALOG CULTURE Abstract: The research takes place in two universities film clubs that is in operation since 2005 and maintain continuous sessions to an audience consisting in mostly by college students. The paper presents the history of these film clubs participants with cinema, observing their films consumption, revealing how the choice of analogue film club culture is given, since the young generation of the XXI century are a part of a digital culture. The article also analyses what these students portrait as relevant from these film clubs experiences in their education. To this end, were interviewed participants of these film clubs that considered their participation as relevant to their education. Keywords: Universities film clubs. Cinema. Formation. Film club culture. LOS JÓVENES DEL SIGLO XXI EN LA CULTURA ANALÓGICA DEL CINECLUB  Resumen: La investigación tiene como locus dos cineclubes universitarios que desde 2005 mantienen sesiones continuadas a los estudiantes universitarios. El artículo presenta la historia de los participantes de esos cineclubes con el cine, observando su relación de consumo de películas, revelando como ocurre la elección por la cultura analógica del cineclube, puesto que los jóvenes del siglo XXI forman parte de una cultura digital y virtual. Además, se analisa qué los estudiantes destacan de relevante en esa experiencia con el cineclub en su formación. Para ello, fueron entrevistados participantes de esos cineclubes los cuales consideran esa actuación relevante a su formación. Palabras clave: Cineclubes universitarios. Cine. Formación. Cultura de cineclube.

Experimental estimation of regional lung water volume by histogram of pulmonary CT numbers

International Nuclear Information System (INIS)

Kato, Shiro; Momoki, Shigeru; Asai, Toshihiko; Shimada, Takeshi; Tamano, Masahiro; Nakamoto, Takaaki; Yoshimura, Masaharu

1989-01-01

Both in vitro and in vivo experiments were made to assess the ability of pulmonary CT numbers to quantitatively determine regional water volume in cases of pulmonary congestion or edema associated with left heart failure. In vitro experiment revealed a good linear correlation between the volume of injected water and the determined CT number of polyethylene tube packed with sponge. In the subsequent in vivo experiment with 10 adult mongrel dogs, lung water volumes obtained by pulmonary CT numbers were found to be consistent with the actual volumes. Pulmonary CT numbers for water volume proved to become parameters to quantitatively evaluate pulmonary congestion or edema. (Namekawa, K)

THE 2014 MARCH 29 X-FLARE: SUBARCSECOND RESOLUTION OBSERVATIONS OF Fe XXI λ1354.1

Energy Technology Data Exchange (ETDEWEB)

Young, Peter R. [College of Science, George Mason University, Fairfax, VA 22030 (United States); Tian, Hui [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Jaeggli, Sarah [Department of Physics, Montana State University, P.O. Box 173840, Bozeman, MT 59717 (United States)

2015-02-01

The Interface Region Imaging Spectrometer (IRIS) is the first solar instrument to observe ∼10 MK plasma at subarcsecond spatial resolution through imaging spectroscopy of the Fe XXI λ1354.1 forbidden line. IRIS observations of the X1 class flare that occurred on 2014 March 29 at 17:48 UT reveal Fe XXI emission from both the flare ribbons and the post-flare loop arcade. Fe XXI appears at all of the chromospheric ribbon sites, although typically with a delay of one raster (75 s) and sometimes offset by up to 1''. 100-200 km s{sup –1} blue-shifts are found at the brightest ribbons, suggesting hot plasma upflow into the corona. The Fe XXI ribbon emission is compact with a spatial extent of <2'', and can extend beyond the chromospheric ribbon locations. Examples are found of both decreasing and increasing blue-shift in the direction away from the ribbon locations, and blue-shifts were present for at least six minutes after the flare peak. The post-flare loop arcade, seen in Atmospheric Imaging Assembly 131 Å filtergram images that are dominated by Fe XXI, exhibited bright loop-tops with an asymmetric intensity distribution. The sizes of the loop-tops are resolved by IRIS at ≥1'', and line widths in the loop-tops are not broader than in the loop-legs suggesting the loop-tops are not sites of enhanced turbulence. Line-of-sight speeds in the loop arcade are typically <10 km s{sup –1}, and mean non-thermal motions fall from 43 km s{sup –1} at the flare peak to 26 km s{sup –1} six minutes later. If the average velocity in the loop arcade is assumed to be at rest, then it implies a new reference wavelength for the Fe XXI line of 1354.106 ± 0.023 Å.

The relationship between trading volumes, number of transactions, and stock volatility in GARCH models

Science.gov (United States)

Takaishi, Tetsuya; Chen, Ting Ting

2016-08-01

We examine the relationship between trading volumes, number of transactions, and volatility using daily stock data of the Tokyo Stock Exchange. Following the mixture of distributions hypothesis, we use trading volumes and the number of transactions as proxy for the rate of information arrivals affecting stock volatility. The impact of trading volumes or number of transactions on volatility is measured using the generalized autoregressive conditional heteroscedasticity (GARCH) model. We find that the GARCH effects, that is, persistence of volatility, is not always removed by adding trading volumes or number of transactions, indicating that trading volumes and number of transactions do not adequately represent the rate of information arrivals.

Leadership in Force XXI: Is the Army's Current Leadership Model and Leader Development Doctrine Properly Addressing the Challenges Brought About by the Transition to Force XXI

National Research Council Canada - National Science Library

Johnson, Carl

1999-01-01

.... The purpose of this research paper is to answer the question, Is the Army's current leadership model and leader development doctrine properly addressing the challenges brought about by the transition to Force XXI...

The Manager's Human Communication in the Organizations of the XXI Century

Directory of Open Access Journals (Sweden)

Olga Vargas Cordero

2017-08-01

Full Text Available The article offers the results of a quantitative study on the manager's human communication in organizations of the XXI century, supported by the epistemic principle of complementarity, coaching tools (360° Feedback and Wheel of Life and unstructured interview to six managers of CORPOELEC, to reveal how it interacts both horizontally and vertically and to identify communication barriers from the manager's ontological element. The research findings point to the presence of cultural and psychosocial communication barriers that impact interactions (senior manager-manager, manager-manager and manager-subordinate. For this reason, among other guidelines, Ontological Coaching is recommended to develop a person manager with competences of human communication, personal valuation and management of differences that humanize the communication in the organization of the XXI century.

Asymmetry of cerebral grey and white matter and structural volumes in relation to sex hormones and chromosomes

Directory of Open Access Journals (Sweden)

Ivanka eSavic

2014-11-01

Full Text Available Whilst many studies show sex differences in cerebral asymmetry, their mechanisms are still unknown. This report describes the potential impact of sex hormones and sex chromosomes by comparing MR data from 39 male and 47 female controls and 33 men with an extra X-chromosome (47,XXY Methods: Regional asymmetry in grey and white matter volumes (GMV and WMV was calculated using voxel based moprhometry (SPM5, by contrasting the unflipped and flipped individual GMV and WMV images. In addition, structural volumes were calculated for the thalamus, caudate, putamen, amygdala, and hippocampus, using the FreeSurfer software. Effects of plasma testosterone and estrogen on the GMV and WMV, as well on the right/left ratios of the subcortical volumes were tested by multi-regression analysis.Results: All three groups showed a leftward asymmetry in the motor cortex and the planum temporale, and a rightward asymmetry of the middle occipital cortex. Both asymmetries were more pronounced in 46,XY males than 46,XX females and 47,XXY males, and were positively correlated with testosterone levels. There was also a rightward asymmetry of the vermis and leftward asymmetry in the cerebellar hemispheres in all groups. Notably, cerebellar asymmetries were larger in 46,XX females and 47,XXY males, but were not related to sex hormone levels. No asymmetry differences between 46,XX females and 47,XXY males, and no overall effects of brain size were detected.Conclusion: The asymmetry in the planum temporale area and the occipital cortex seem related to processes associated with testosterone, whereas the observed cerebellar asymmetries suggest a link with X-chromosome escapee genes. Sex differences in cerebral asymmetry are moderated by sex hormones and X-chromosome genes, in a regionally differentiated manner.

Asymmetry of cerebral gray and white matter and structural volumes in relation to sex hormones and chromosomes.

Science.gov (United States)

Savic, Ivanka

2014-01-01

Whilst many studies show sex differences in cerebral asymmetry, their mechanisms are still unknown. This report describes the potential impact of sex hormones and sex chromosomes by comparing MR data from 39 male and 47 female controls and 33 men with an extra X-chromosome (47,XXY). Regional asymmetry in gray and white matter volumes (GMV and WMV) was calculated using voxel based moprhometry (SPM5), by contrasting the unflipped and flipped individual GMV and WMV images. In addition, structural volumes were calculated for the thalamus, caudate, putamen, amygdala, and hippocampus, using the FreeSurfer software. Effects of plasma testosterone and estrogen on the GMV and WMV, as well on the right/left ratios of the subcortical volumes were tested by multi-regression analysis. All three groups showed a leftward asymmetry in the motor cortex and the planum temporale, and a rightward asymmetry of the middle occipital cortex. Both asymmetries were more pronounced in 46,XY males than 46,XX females and 47,XXY males, and were positively correlated with testosterone levels. There was also a rightward asymmetry of the vermis and leftward GMV asymmetry in the cerebellar hemispheres in all groups. Notably, cerebellar asymmetries were larger in 46,XX females and 47,XXY males, but were not related to sex hormone levels. No asymmetry differences between 46,XX females and 47,XXY males, and no overall effects of brain size were detected. The asymmetry in the planum temporale area and the occipital cortex seem related to processes associated with testosterone, whereas the observed cerebellar asymmetries suggest a link with X-chromosome escapee genes. Sex differences in cerebral asymmetry are moderated by sex hormones and X-chromosome genes, in a regionally differentiated manner.

Fuzzy Control of Tidal volume, Respiration number and Pressure value

OpenAIRE

Hasan Guler; Fikret Ata

2010-01-01

In this study, control of tidal volume, respiration number and pressure value which are arrived to patient at mechanical ventilator device which is used in intensive care units were performed with fuzzy logic controller. The aim of this system is to reduce workload of aneshesiologist. By calculating tidal volume, respiration number and pressure value, the error Pe(k) between reference pressure value (Pref) and pressure of gas given ill person (Phasta) and error change rate ;#948;Pe(k) were co...

A rare 47 XXY/46 XX mosaicism with clinical features of Klinefelter syndrome.

Science.gov (United States)

Mohd Nor, Noor Shafina; Jalaludin, Muhammad Yazid

2016-01-01

47 XXY/46 XX mosaicism with characteristics suggesting Klinefelter syndrome is very rare and at present, only seven cases have been reported in the literature. We report an Indian boy diagnosed as variant of Klinefelter syndrome with 47 XXY/46 XX mosaicism at age 12 years. He was noted to have right cryptorchidism and chordae at birth, but did not have surgery for these until age 3 years. During surgery, the right gonad was atrophic and removed. Histology revealed atrophic ovarian tissue. Pelvic ultrasound showed no Mullerian structures. There was however no clinical follow up and he was raised as a boy. At 12 years old he was re-evaluated because of parental concern about his 'female' body habitus. He was slightly overweight, had eunuchoid body habitus with mild gynaecomastia. The right scrotal sac was empty and a 2mls testis was present in the left scrotum. Penile length was 5.2 cm and width 2.0 cm. There was absent pubic or axillary hair. Pronation and supination of his upper limbs were reduced and x-ray of both elbow joints revealed bilateral radioulnar synostosis. The baseline laboratory data were LH XX[67] with SRY positive. Laparoscopic examination revealed no Mullerian structures. Insisting on an adequate number of cells (at least 50) to be examined during karyotyping is important so as not to miss diagnosing mosaicism.

Obstetricia integral siglo XXI. Tomo I

OpenAIRE

Bracho Ch., Alcides C.; Bautista Charry, Alejandro; Castro Sanguino, Alejandro; Navarro Milanés, Alfonso; Lomanto Moran, Antonio; Ruiz Parra, Ariel Iván; Parada Baños, Arturo José; Villacis Vallejos, Carlos Eduardo; Saavedra Trujillo, Carlos Humberto; Arteaga Díaz, Clara Eugenia; Cortés Díaz, Daniel Otálvaro; Vargas Fiesco, Diana Carolina; Peña, Diana; Becerra Cornejo, Diego Alejandro; Müller, Edith Angel

2009-01-01

El libro Obstetricia integral siglo XXI. Facultad de Medicina, Universidad Nacional de Colombia, se trata de una revisión, actual y profunda, de los principales tópicos en el área de la obstetricia, realizada por un grupo interdisciplinario de autores comprometidos con el mejoramiento de la calidad en el cuidado de la salud de la mujer gestante. Se ha procurado un balance entre los aspectos básicos de fisiopatología y las guías de atención clínica soportadas en evidencias científicas, con el ...

Neural systems for social cognition: gray matter volume abnormalities in boys at high genetic risk of autism symptoms, and a comparison with idiopathic autism spectrum disorder.

Science.gov (United States)

Goddard, Marcia N; Swaab, Hanna; Rombouts, Serge A R B; van Rijn, Sophie

2016-09-01

Klinefelter syndrome (47, XXY) is associated with several physical, cognitive, and behavioral consequences. In terms of social development, there is an increased risk of autism symptomatology. However, it remains unclear how social deficits are related to abnormal brain development and to what degree underlying mechanisms of social dysfunction in 47, XXY are similar to, or different from, those in idiopathic autism (ASD). This study was aimed at investigating the neural architecture of brain structures related to social information processing in boys with 47, XXY, also in comparison with boys with idiopathic ASD. MRI scans of 16 boys with 47, XXY, 16 with ASD, and 16 nonclinical, male controls were analyzed using voxel-based morphometry (VBM). A region of interest mask containing the superior temporal cortex, amygdala, orbitofrontal cortex (OFC), insular cortex, and medial frontal cortex was used. The Social Responsiveness Scale (SRS) was used to assess degree of autism spectrum symptoms. The 47, XXY group could not be distinguished from the ASD group on mean SRS scores, and their scores were significantly higher than in controls. VBM showed that boys with 47, XXY have significant gray matter volume reductions in the left and right insula, and the left OFC, compared with controls and boys with ASD. Additionally, boys with 47, XXY had significantly less gray matter in the right superior temporal gyrus than controls. These results imply social challenges associated with 47, XXY may be rooted in neural anatomy, and autism symptoms in boys with 47, XXY and boys with ASD might have, at least partially, different underlying etiologies.

Stereological quantification of tumor volume, mean nuclear volume and total number of melanoma cells correlated with morbidity and mortality

DEFF Research Database (Denmark)

Bønnelykke-Behrndtz, Marie Louise; Sørensen, Flemming Brandt; Damsgaard, Tine Engberg

2008-01-01

potential indicators of prognosis. Sixty patients who underwent surgery at the Department of Plastic Surgery, Aarhus University Hospital, from 1991 to 1994 were included in the study. Total tumor volume was estimated by the Cavalieri technique, total number of tumor cells by the optical dissector principle...... showed a significant impact on both disease-free survival (p=0.001) and mortality (p=0.009). In conclusion, tumor volume and total number of cancer cells were highly reproducible but did not add additional, independent prognostic information regarding the study population.......Stereological quantification of tumor volume, total number of tumor cells and mean nuclear volume provides unbiased data, regardless of the three-dimensional shape of the melanocytic lesion. The aim of the present study was to investigate whether these variables are reproducible and may represent...

The recovery of copper by leaching-solvent extraction-electrowinning: Towards the XXI century; La recuperacion de cobre mediante lixiviacion-extraccion con disolventes electrolisis: hacia el siglo XXI

Energy Technology Data Exchange (ETDEWEB)

Alguacil, F.J. [Centro Nacional de Investigaciones Metalurgicas. Madrid (Spain)

1998-12-31

The obtention of copper from primary resources by solvent extraction has been developed continuously over the past 25-30 years, entailing a continuous effort both of research and development and being one of the biggest successes in the industrial development of a given metal. The success of this operation was not possible without the corresponding developments, at the same time, of the two accompanying operations (leaching and electro wining), which perfectly coupled in the operational sequence. The recovery of copper by means of these hydrometallurgical processes is firmly established and being reflecting in the growing number of operational plants under construction and/or commissioned until the beginning of the XXI century. This work presents data on the successfully application of the sequence of operations on the recovery of a metal: copper (Author) 19 refs.

Lincoln Laboratory Journal. Volume 22, Number 1, 2016

Science.gov (United States)

2016-06-09

different service models—infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service ( SaaS )—that target system... SaaS Full-fledged applications Low Google Gmail, Microsoft Office 365, Facebook 126 LINCOLN LABORATORY JOURNAL n VOLUME 22, NUMBER 1, 2016 SECURE AND

Trading volume and the number of trades : a comparative study using high frequency data

OpenAIRE

Izzeldin, Marwan

2007-01-01

Trading volume and the number of trades are both used as proxies for market activity, with disagreement as to which is the better proxy for market activity. This paper investigates this issue using high frequency data for Cisco and Intel in 1997. A number of econometric methods are used, including GARCH augmented with lagged trading volume and number of trades, tests based on moment restrictions, regression analysis of volatility on volume and trades, normality of returns when standardized by...

2. International conference on nuclear technologies of XXI centuries. Abstracts

International Nuclear Information System (INIS)

Yakushev, A.P.

2010-01-01

The collection contains abstracts of the II International conference 'Nuclear technologies of the XXI century' on energy problems in the world, the prospects for nuclear power plant in Belarus, the various technological, technical and economic aspects of nuclear safety of NPP and nuclear reactions and international cooperation. The materials published in electronic form.

European Scientific Notes. Volume 37, Number 2,

Science.gov (United States)

1983-02-28

potassium persulfate the initiator. ethylene. The method is to immerse the Particle nucleation, flocculation, and films in an aqueous solution of acrylic... polyacrylic acid in the aqueous solu- causing flocculation and coalescence. tion, water soluble inhibitors were The process of aggregation of ...AD-A127 548 EUROPEAN SCIENTIFIC 140TES VOLUME 37 NUMBER 2(U) OFFICE / OF NAVAL RESEARCH LONDON (ERGLAND) V TSTANNET ET AL 28 FER 83 ESN-37-2 UNCLAAS

Medical Business Ethics in the XXI century

International Nuclear Information System (INIS)

Moya Pueyo, V.

2009-01-01

Since ancient times the medical professional practice included moral rules in order to assure a correct approach of capital problems. These rules evolve and are now gathered in the Deontological Codes watching the Constitution and other higher Laws. There has been an increase of interest for none strictly clinical matter since the appearance of the term Bioethics. The book Deontologia medica en el siglo XXI tackles problems of first interest in the present times, thru statistics and analysis, trying to help the medical doctors that have to take ethic decisions. (Author)

XXI sajandil võib vabalt puhkeda demokraatia kriis / Jaan Kaplinski

Index Scriptorium Estoniae

Kaplinski, Jaan, 1941-

2007-01-01

Ilmunud ka: Delovõje Vedomosti 4. apr. lk. 12. Autor usub, et XXI sajand saab otsustavaks ajaks nii inimsoo kui ka demokraatia jätkusuutlikkusele. Pole võimatu, et elatustaseme langus ja suure osa inimeste võimetus sellega leppida ning leida võimalus ka kasinates tingimustes hästi elada võib viia demokraatia kriisile

Ghana Journal of Development Studies, Volume 7, Number 2

African Journals Online (AJOL)

UDS-CAPTURED

Ghana Journal of Development Studies, Volume 7, Number 2 2010. 53 ... The use of motorcycles for urban passenger transport in Nigeria popularly called okada is a source of ..... Gap in Mexico Washington, DC: The World Bank. Becker, S. G. ...

European Science Notes. Volume 40, Number 1.

Science.gov (United States)

1986-01-01

Mass Spectrometry mers and copolymers of polyacrylate salt series edited by Professor J.F.J. Todd latex) rather than an inorganic or or- (University...changes in the popu- cy with two potassium dihydrogen phos- lation of a vibrational manifold were phate (KDP) crystals. Following a fil- determined by...AD-A162 235 EUROPEAN SCIENCE NOTES VOLUME 48 NUMBER I(U) OFFICE OF i/1 NAVAL RESEARCH LONDON (ENGLAND) L E SHAFFER JAN 86 UNCLASSIFIED F/G 5/2

The Church and Socialism of the XXI Century

Directory of Open Access Journals (Sweden)

Francois Houtart

2008-06-01

Full Text Available Recuerdo que hace dos meses vine a participar en el seminario organizado por el Serpaj (Servicio de Paz y Justicia; ahora estoy particularmente feliz de estar nuevamente con ustedes para hablar sobre el Socialismo del siglo XXI y la Iglesia del siglo XXI. De hecho, el tema es realmente de actualidad puesto que en América Latina vivimos por primera vez esta situación, después de mucho tiempo, en el que pasamos de las resistencias a las alternativas, no digo que sea la alternativa definitiva, pero se trata de pasos en dirección de las alternativas. América Latina es el único continente en el mundo actual que experimenta alternativas. Si consideramos por ejemplo el Asia, allí se vive el neoliberalismo más como una oportunidad que como una agresión. Es muy claro para la opinión general en América Latina que el neoliberalismo ha sido una agresión económica, política, cultural. En cambio, en países como la India,Vietnam y China se mira el neoliberalismo o el capitalismo tal vez como una oportunidad, por eso estamos todavía en estado, no solamente de construcción de alternativas, sino aún de resistencias.

Volume calculation from limited number of MR imaging sections

International Nuclear Information System (INIS)

Wang, J.; Mezrich, R.; Sebok, D.

1988-01-01

Magnetic resonance imaging is an accurate and noninvasive way to obtain cardiac geometrical information. For the quantification of left ventricular dynamic parameters, sections are taken along the long axis of the ventricle. Due to the limited number of sections that can be obtained in a reasonable amount of scanning time, the estimation of longitudinal dimension is usually the cause of error in volume calculation. The starting and ending sections are best estimated by guidance of the short axis cuts. This can only guarantee first-order accuracy. Simpson's rule for summation of areas to calculate volume, which is the commonly used method, assumes an accurate knowledge of the starting and ending points of integration. When this assumption is not perfectly met, Simpson's rule tends to unsystemically over- or underestimate the true volume. Due to this concern, some researchers adopt the images from the short axis cut to aid the volume calculation. This can improve the accuracy, but makes the already long scanning time longer. The authors have derived a method of extrapolation and intrapolation based on no more information than usually available to correct the volume over- or underestimated by the Simpson's rule

The WSTIAC Quarterly. Volume 9, Number 4

Science.gov (United States)

2010-04-28

elements of command– Major Eric D. Trias Captain Bryan M. Bell US Air Force You have to know the past to understand the present. — Carl Sagan This article is...Quarterly, Volume 9, Number 4 3 INTRODUCTION Carl von Clausewitz defined war as “…an act of violence intended to compel our opponent to fulfill our will...controlled systems. NOTES & REFERENCES ‡ Joint Pub 3-13 provides the doctrinal foundation for the conduct of IO in joint operations. [1] von Clausewitz, Carl

La evolución del juego de ataque en balonmano. Revisión histórica: Los inicios del Siglo XXI.

Directory of Open Access Journals (Sweden)

Juan de Dios Román Seco

2009-12-01

knowledge of these should be good to contribute creative ideas that enrich, if it's possible the dynamism, intelligence and competitiveness of handball.   This article is a review of  the  work published  in the volume two of this journal,  “The beginnings of the XXI century: evolution and tendencies of the game”. Key words: Handball, XXI Century, Evolution, Attacks, Show.

Educación superior de calidad para el siglo XXI

Directory of Open Access Journals (Sweden)

Alexander Vega Miranda

2001-01-01

Full Text Available Este artículo tiene como objetivo presentar de modo explícito la serie de opciones ideológicas y pedagógicas que, dentro del contexto costarricense, deben ser tenidas en cuenta por la persona encargada de tomar las decisiones, cuando intente mejorar la calidad de la educación para enfrentar los retos del siglo XXI

Cognitive mechanisms underlying disorganization of thought in a genetic syndrome (47,XXY)

NARCIS (Netherlands)

Van Rijn, Sophie; Aleman, Andre; De Sonneville, Leo; Swaab, Hanna

Because of the risk for development of psychopathology such as psychotic symptoms, it has been suggested that studying men with the XXY karyotype may help in the search for underlying cognitive, neural and genetic mechanisms. The aim of this study was to identify cognitive mechanisms that may

XXI symposium Modern chemical physics. Tuapse 2009. Summaries of reports

International Nuclear Information System (INIS)

2009-01-01

The materials of the XXI symposium Modern chemical physics, Tuapse 2009 (25 September - 6 October, 2009) are presented. Scientific program includes lectures, presentations and poster sessions on photochemistry and radiation chemistry, elementary processes, homogeneous and heterogeneous catalysis. The problems of chemical reaction kinetics, quantum chemistry, chemical spectroscopy, macromolecular chemistry are discussed. Topics of chemical physics of surface, nanochemistry, nanophysics and nanotechnology are treated [ru

Organic light emission structures — XXI century technologies

Directory of Open Access Journals (Sweden)

Sorokin V. M.

2009-02-01

Full Text Available The given review allows to believe, that the decision of a complex technological, materialstechnological, technical problems at creation modern OLED- and PLED-devices in nearest 5—10 years will result in creation of devices with power efficiency more than 100 lm/W and service life till 100 000 hours. The realization of such parameters will allow to expand area of application of the considered systems and to create in the future unique flat powereffective organic lighting systems of new generation — light sources XXI of century.

TENDENCIAS DE LA MERCADOTECNIA EN EL SIGLO XXI

OpenAIRE

Ma. Walesska Schlesinger Díaz; Leifel Hernández

2004-01-01

El presente artículo tiene como objetivo central explorar las tendencias que en el siglo XXI están revolucionando la práctica del mercadeo en las organizaciones. Para ello se caracteriza, en términos generales, el concepto de mercadotecnia, así como, la evolución de la misma desde sus inicios. Posteriormente se consideran los cambios tecnológicos, sociales y de mercado que han surgido en los inicios del milenio, para finalmente identificar las tendencias y desafíos a los cuales se enfrentan l...

EL MANEJO DE LA BIODIVERSIDAD EN EL SIGLO XXI

Science.gov (United States)

ARIEL E. LUGO

2001-01-01

ser humano está transformando rápidamente el planeta Tierra (Meyer y Turner, 1994; Vitousek et al., 1997a). Su actividad tiene efectos globales que modifican el ambiente terrícola (Tabla I). Estos cambios, que comenzaron con la revolución industrial del siglo XIX, serán más notables en el siglo XXI en lo que se ha denominado la era Homogeocena donde el efecto dominante...

Medical Surveillance Monthly Report. Volume 21, Number 9

Science.gov (United States)

2014-09-01

rib fracture rates, which increased with age (Figure 2). Males had higher incidence rates than females in all fracture categories except for stress...stress, foot/ankle, hand, leg, arm, and rib fractures were notably higher among recruit trainees aged 35 years or older than among the younger age...Mabrito SEPTEMBER 2014 Volume 21 Number 9 P A G E 2 Fractures among active component, recruit trainees, and deployed service members, U.S. Armed

XXI century projections of wind-wave conditions and sea-level rise in the Black sea

Science.gov (United States)

Polonsky, A.; Garmashov, A.; Fomin, V.; Valchev, N.; Trifonova, E.

2012-04-01

Projection of regional climate changes for XXI century is one of the priorities of EC environmental programme. Potential worsening of the waves' statistics, sea level rise and extreme surges are the principal negative consequences of the climate change for marine environment. That is why the main purpose of this presentation is to discuss the above issue for the Black sea region (with a strong focus to the south-west subregion because the maximum heights of waves exceeding 10 m occur just here) using output of several global coupled models (GCM) for XXI century, wave simulation, long-term observations of sea level and statistical techniques. First of all we tried to choose the best coupled model (s) simulated the Black sea climate change and variability using the control experiments for 20 century (203). The principal result is as follows. There is not one model which is simulating adequately even one atmospheric parameter for all seasons. Therefore we considered (for the climate projection) different outputs form various models. When it was possible we calculated also the ensemble mean projection for the selected model (s) and emission scenarios. To calculate the wave projection we used the output of SWAN model forced by the GCM wind projection for 2010 to 2100. To estimate the sea level rise in XXI century and future surges statistics we extrapolate the observed sea level rise tendencies, statistical relation between wave heights and sea level and wave scenarios. Results show that in general, the climate change in XXI century doesn't lead to the catastrophic change of the Black sea wind-wave statistics including the extreme waves in the S-W Black sea. The typical atmospheric pattern leading to the intense storm in the S-W Black sea is characterized by the persistent anticyclonic area to the North of the Black sea and cyclonic conditions in the Southern Black sea region. Such pressure pattern causes persistent and strong eastern or north-eastern wind which

Peripheral conversion and uptake of androgens in a XXY-man with Klinefelter's syndrome

International Nuclear Information System (INIS)

Sulcova, J.; Jirasek, J.E.; Neuwirth, J.; Raboch, J.; Starka, L.

1978-01-01

The conversion of 3 H-testosterone and the uptake of 3 H-testosterone and 3 H-5α-dihydrotestosterone were investigated in pubic skin and pubic hair follicles of a XXY-man with inadequate pubic hair. The uptake of both androgens was demonstrated in the skin as well as in the hair follicles. Similarly the activity of steroid 5α-reductase was present in both tissues. The total conversion of 3 H-testosterone was 2-3 times higher in the patient than in control persons. In the XXY-man the major metabolites were 5α- and 5β-androstanediols, whereas in the normal men 5α-dihydrotestosterone and 4-androstenedione were mainly formed from testosterone. An explanation of the inadequate growth of pubic hair in our patient seems to be related to a conversion of testosterone - at its low plasma level - to its relatively inactive metabolites. (author)

Proceedings of 7. international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century'; Materialy 7-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2007 goda: Ehkologicheskie problemy XXI veka'

Energy Technology Data Exchange (ETDEWEB)

Kundas, S P; Mel' nov, S B; Poznyak, S S [International A. Sakharov environmental univ., Minsk (Belarus)

2007-05-15

Abstracts of the seventh international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

Social Function in Multiple X and Y Chromosome Disorders: XXY, XYY, XXYY, XXXY

Science.gov (United States)

Visootsak, Jeannie; Graham, John M., Jr.

2009-01-01

Klinefelter syndrome (47,XXY) was initially described in the context of its endocrinologic and physical features; however, subsequent studies have revealed specific impairments in verbal skills and social functioning. Males with sex chromosomal aneuploidies are known to have variability in their developmental profile with the majority presenting…

Solar Flare Termination Shock and Synthetic Emission Line Profiles of the Fe xxi 1354.08 Å Line

Energy Technology Data Exchange (ETDEWEB)

Guo, Lijia [Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA (United States); Li, Gang [Department of Space Science and CSPAR, University of Alabama in Huntsville, Huntsville, AL (United States); Reeves, Kathy; Raymond, John, E-mail: gang.li@uah.edu [Harvard-Smithsonian Center for Astrophysics, Boston, MA (United States)

2017-09-01

Solar flares are among the most energetic phenomena that occur in the solar system. In the standard solar flare model, a fast mode shock, often referred to as the flare termination shock (TS), can exist above the loop-top source of hard X-ray emissions. The existence of the TS has been recently related to spectral hardening of a flare’s hard X-ray spectra at energies >300 keV. Observations of the Fe xxi 1354.08 Å line during solar flares by the Interface Region Imaging Spectrograph ( IRIS ) spacecraft have found significant redshifts with >100 km s{sup −1}, which is consistent with a reconnection downflow. The ability to detect such a redshift with IRIS suggests that one may be able to use IRIS observations to identify flare TSs. Using a magnetohydrodynamic simulation to model magnetic reconnection of a solar flare and assuming the existence of a TS in the downflow of the reconnection plasma, we model the synthetic emission of the Fe xxi 1354.08 line in this work. We show that the existence of the TS in the solar flare may manifest itself in the Fe xxi 1354.08 Å line.

Ovotesticular disorder of sexual development and a rare 46,XX/47,XXY karyotype.

Science.gov (United States)

Ozsu, Elif; Mutlu, Gul Yesiltepe; Cizmecioglu, Filiz M; Ekingen, Gülsen; Muezzinoglu, Bahar; Hatun, Sukru

2013-01-01

Ovotesticular disorder of sexual development (DSD) is characterized by the presence of both ovarian and testicular tissues in the same individual. The most common karyotype is 46,XX. Here, we report the case of a boy with a 46,XX/47,XXY karyotype diagnosed as ovotesticular DSD by gonadal biopsy. A 5-month-old boy presented with hypospadias, unilateral cryptorchidism, and a micropenis. Pelvic magnetic resonance imaging revealed a suspicious gonad tissue that is solid in structure in the right scrotum and a suspicious gonad that is cystic in structure in the left inguinal canal. He underwent a diagnostic laparoscopy. Cytogenetic analysis of peripheral blood revealed a 46,XX/47,XXY karyotype. Histopathologic examination of the left gonad showed ovarian tissue containing primordial follicles with ipsilateral undifferentiated tuba uterina. The right gonad showed immature testis tissue. He underwent left gonadectomy and hypospadias repair, and was raised as a male. Through this rare case, we highlight the importance of histological and cytogenetic investigation in DSD.

Que se enteren: cuerpo y sexualidad en el zoom social. Sobre XXY Them to know: body and sexuality in the social zoom. About XXY

Directory of Open Access Journals (Sweden)

Mariana Viera Cherro

2011-08-01

Full Text Available El presente trabajo toma como excusa narrativa la película argentina XXY para discutir algunos aspectos que se plantean en la misma en torno a la construcción socio cultural del cuerpo sexuado y cómo ello incide en las maneras personales de experimentar el cuerpo y la sexualidad teniendo como eje de análisis el concepto de "estigma". La existencia de largometrajes como el citado pone en el horizonte social un debate que desde una perspectiva feminista se vuelve trascendente si consideramos que las producciones cinematográficas son una manera del decir social, de imponer normas en relación a lo posible y lo imposible, en este caso sobre la constitución del sujeto sexuado.This work takes as a narrative excuse the Argentinean film XXY to discuss some aspects the film brings to the fore about the social and cultural construction of the sexual body, and how this construction has implications in the particular ways to experience the body and sexuality. The pivot of this analysis will be the concept of "stigma". The existence of this kind of film raises debate which, from a feminist perspective, has a vital meaning if we consider that filmic productions impose norms about what is possible and what is not, in this case about the constitution of a sexed subject.

XXI sajandi muuseum : kas rahvusluse tempel või kaasaegne institutsioon? / Maria-Kristiina Soomre

Index Scriptorium Estoniae

Soomre, Maria-Kristiina, 1978-

2006-01-01

17. V Kumus toimunud avalikust püsiekspositsiooni diskussioonist "Milline peab olema XXI sajandi muuseumi ekspositsioon?". Arutelu teemad "Millist ajalugu me vajaksime?", "Kas Kumus on kohta kaasaegsele kunstile?", sõnastas Kumu kuraator Eha Komissarov, üritust modereeris Sirje Helme, paneelis osalesid Rael Artel, Marco Laimre, Ly Lestberg ja Leonhard Lapin

Prepubertal unilateral gynecomastia and the presence of 47,XXY mosaicism in breast epithelial cells

DEFF Research Database (Denmark)

Andersen, Peter Stemann; Petersen, Bodil Laub; Juul, Anders

2013-01-01

, and sclerotherapy with Picibanil (OK-432) was attempted without any detectable effect on size. The mass was later excised. The pathological examination revealed mammary gland tissue suggestive of idiopathic gynecomastia. FISH revealed 47, XXY mosaicism in the abnormal breast epithelial cells, but not in peripheral...

East and Central African Journal of Surgery Volume 15 Number 2 ...

African Journals Online (AJOL)

DELL

East and Central African Journal of Surgery Volume 15 Number 2. ... Makerere University,School of Biomedical sciences Department of Anatomy, P.O Box 7072, ..... should be borne in mind when locating the nerve for a regional block in the ...

Design of an Image-Servo Mask Alignment System Using Dual CCDs with an XXY Stage

Directory of Open Access Journals (Sweden)

Chih-Jer Lin

2016-02-01

Full Text Available Mask alignment of photolithography technology is used in many applications, such as micro electro mechanical systems’ semiconductor process, printed circuits board, and flat panel display. As the dimensions of the product are getting smaller and smaller, the automatic mask alignment of photolithography is becoming more and more important. The traditional stacked XY-Θz stage is heavy and it has cumulative flatness errors due to its stacked assembly mechanism. The XXY stage has smaller cumulative error due to its coplanar design and it can move faster than the traditional XY-Θz stage. However, the relationship between the XXY stage’s movement and the commands of the three motors is difficult to compute, because the movements of the three motors on the same plane are coupling. Therefore, an artificial neural network is studied to establish a nonlinear mapping from the desired position and orientation of the stage to three motors’ commands. Further, this paper proposes an image-servo automatic mask alignment system, which consists of a coplanar XXY stage, dual GIGA-E CCDs with lens and a programmable automatic controller (PAC. Before preforming the compensation, a self-developed visual-servo provides the positioning information which is obtained from the image processing and pattern recognition according to the specified fiducial marks. To obtain better precision, two methods including the center of gravity method and the generalize Hough Transformation are studied to correct the shift positioning error.

Século XXI: nova cultivar de goiabeira de dupla finalidade XXI Century: new cultivar of guava tree to double purpose

Directory of Open Access Journals (Sweden)

Fernando Mendes Pereira

2003-12-01

Full Text Available A goiabeira (Psidium guajava L. é uma espécie que vem se tornando de grande importância em diversas regiões do Brasil, principalmente no Estado de São Paulo, maior produtor nacional. Desde 1985, a UNESP/FCAV, Câmpus de Jaboticabal, vem desenvolvendo um programa de melhoramento genético da goiabeira, com o objetivo de obter plantas com boas características agronômicas e com frutos que possam ser destinados tanto à industrialização quanto ao consumo na forma de fruta fresca. Partindo-se de 219 plantas, oriundas de diversos cruzamentos, e após dez anos de avaliação, chegou-se à cultivar Século XXI, cujas principais características são: planta muito produtiva com ciclo precoce (130 dias da floração à colheita, frutos grandes, com polpa espessa, róseo-avermelhada, ótimo sabor e com poucas e pequenas sementes.The guava tree (Psidium guajava, L. is a species that is coming into being of great importance in several areas of Brazil, mainly in State of São Paulo, its biggest national producer. Since 1985, the UNESP/FCAV, Jaboticabal Campus comes developing a program of breeding of guava tree, with the objective of obtaining plants with good agronomic characteristics and fruits that can be destined for industrialization and consumption as fresh fruit. From 219 plants originating from several crossing, and after ten years of evaluation, it has been obtained the XXI Century cultivar, which main characteristics are: a very productive plant with precocious cycle (130 days from the blossom to the harvest, big fruits with thick pulp, rosy-red, great flavor and with little and small seeds.

Azpiazu, Daniel, La concentración en la industria argentina a principios del siglo XXI

Directory of Open Access Journals (Sweden)

Patricia Jerez

2013-01-01

Full Text Available Azpiazu, Daniel, La concentración en la industria argentina a principios del siglo XXI, Buenos Aires, Cara o Ceca/Centro Cultural de la Cooperación Floreal Gorini/Editorial Atuel, 2011 (148 págs.

CrossTalk. The Journal of Defense Software Engineering. Volume 15, Number 12, December 2002

Science.gov (United States)

2002-12-01

Journal of Defense Software Engineering. Volume 15, Number 12, December 2002 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6...You sit backwards on Disneyland rides to see how they do the special effects. • You’ve tried to repair a $5 radio. • You look forward to Christmas so

Estimating marine aerosol particle volume and number from Maritime Aerosol Network data

Directory of Open Access Journals (Sweden)

A. M. Sayer

2012-09-01

Full Text Available As well as spectral aerosol optical depth (AOD, aerosol composition and concentration (number, volume, or mass are of interest for a variety of applications. However, remote sensing of these quantities is more difficult than for AOD, as it is more sensitive to assumptions relating to aerosol composition. This study uses spectral AOD measured on Maritime Aerosol Network (MAN cruises, with the additional constraint of a microphysical model for unpolluted maritime aerosol based on analysis of Aerosol Robotic Network (AERONET inversions, to estimate these quantities over open ocean. When the MAN data are subset to those likely to be comprised of maritime aerosol, number and volume concentrations obtained are physically reasonable. Attempts to estimate surface concentration from columnar abundance, however, are shown to be limited by uncertainties in vertical distribution. Columnar AOD at 550 nm and aerosol number for unpolluted maritime cases are also compared with Moderate Resolution Imaging Spectroradiometer (MODIS data, for both the present Collection 5.1 and forthcoming Collection 6. MODIS provides a best-fitting retrieval solution, as well as the average for several different solutions, with different aerosol microphysical models. The "average solution" MODIS dataset agrees more closely with MAN than the "best solution" dataset. Terra tends to retrieve lower aerosol number than MAN, and Aqua higher, linked with differences in the aerosol models commonly chosen. Collection 6 AOD is likely to agree more closely with MAN over open ocean than Collection 5.1. In situations where spectral AOD is measured accurately, and aerosol microphysical properties are reasonably well-constrained, estimates of aerosol number and volume using MAN or similar data would provide for a greater variety of potential comparisons with aerosol properties derived from satellite or chemistry transport model data. However, without accurate AOD data and prior knowledge of

Attention-deficit hyperactivity disorder symptoms in children and adolescents with sex chromosome aneuploidy: XXY, XXX, XYY, and XXYY.

Science.gov (United States)

Tartaglia, Nicole R; Ayari, Natalie; Hutaff-Lee, Christa; Boada, Richard

2012-05-01

Attentional problems, hyperactivity, and impulsivity have been described as behavioral features associated with sex chromosome aneuploidy (SCA). In this study, the authors compare attention-deficit hyperactivity disorder (ADHD) symptoms in 167 participants aged 6 to 20 years with 4 types of SCA (XXY n = 56, XYY n = 33, XXX n = 25, and XXYY n = 53). They also evaluate factors associated with ADHD symptomatology (cognitive and adaptive scores, prenatal vs postnatal ascertainment) and describe the clinical response to psychopharmacologic medications in a subset of patients treated for ADHD. Evaluation included medical and developmental history, cognitive and adaptive functioning assessment, and parent and teacher ADHD questionnaires containing DSM-IV criteria. In the total study group, 58% (96/167) met DSM-IV criteria for ADHD on parent-report questionnaires (36% in XXY, 52% in XXX, 76% in XYY, and 72% in XXYY). The Inattentive subtype was most common in XXY and XXX, whereas the XYY and XXYY groups were more likely to also have hyperactive/impulsive symptoms. There were no significant differences in Verbal, Performance, or Full Scale IQ between children with symptom scores in the ADHD range compared with those below the ADHD range. However, adaptive functioning scores were significantly lower in the group whose scores in the ADHD range were compared with those of the group who did not meet ADHD DSM-IV criteria. Those with a prenatal diagnosis of XXY were less likely to meet criteria for ADHD compared with the postnatally diagnosed group. Psychopharmacologic treatment with stimulants was effective in 78.6% (66/84). Children and adolescents with SCA are at increased risk for ADHD symptoms. Recommendations for ADHD evaluation and treatment in consideration of other aspects of the SCA medical and behavioral phenotype are provided.

Leadership in Force XXI: Is the Army’s Current Leadership Model and Leader Development Doctrine Properly Addressing the Challenges Brought About by the Transition to Force XXI

Science.gov (United States)

1999-04-01

data, psychological and physical stamina, hands on skill at the computer, and knowledge of Force XXI implementation.5 All of these skills can be self... Coursebook , AY 1999. 4 Authors personal experience with modifications to IOAC Program of Instruction (POI) as a Tactics Instructor and Team Chief during...to the Brigade Commander, but he understood that his Company Commander wasn’t in the best spot to physically see what was happening so he surmised

Efeito de diferentes substratos e épocas de coleta no enraizamento de estacas herbáceas de goiabeira, cvs. paluma e século XXI Effect of different substrates and collection seasons on the herbaceous cuttings rooting of guava, cvs. paluma and século XXI

Directory of Open Access Journals (Sweden)

Corina Zietemann

2007-04-01

Full Text Available Este trabalho objetivou avaliar o enraizamento de estacas herbáceas das goiabeiras 'Paluma' e 'Século XXI' em diferentes substratos, coletadas na primavera e no verão. As estacas foram obtidas de ramos jovens não-lignificados de árvores de quatro anos, com um par de folhas no nó superior e 10 cm de comprimento. Para cada época testada, as estacas foram tratadas por imersão rápida, com cinco doses de AIB (0; 500; 1.000; 1.500 e 2.000 mg/L e dispostas em bandejas plásticas perfuradas com dois substratos (casca de arroz carbonizada e vermiculita em câmara de nebulização. Após 70 dias da estaquia, foram avaliadas as seguintes variáveis: porcentagem de enraizamento; massas seca e fresca das raízes; número de raízes por estaca; comprimento das raízes; sobrevivência; retenção foliar e porcentagem de estacas com calo. Concluiu-se que houve maior enraizamento das estacas coletadas no verão e que as doses de 1.500 e 2.000 mg/L de AIB são as mais adequadas para promover as melhores características de enraizamento das estacas para as cvs. Paluma e Século XXI, respectivamente. Os dois substratos utilizados são indicados para a estaquia das goiabeiras estudadas.The objective of this research was to evaluate the influence of different substrates and collection season on the herbaceous cutting rooting of 'Paluma' and 'Século XXI' guava plants (Psidium guajava L.. The herbaceous cuttings were obtained on spring and summer seasons, consisted of 10cm of length, two nodes and a pair of leaves in the superior node, and treated with five doses of IBA (0, 500, 1,500 and 2,000 mg/L for each season studied, and disposed into plastic boxes containing hull rice coal and vermiculita as substrates. After 70 days, the rooting percentage, roots length, number of roots, fresh and dry matter of roots, survival percentage, foliar retention and percentage of cuttings with callus were evaluated. The results showed that the better rooting percentage

X marks the spot : structural and functional brain mapping in a genetically defined group at high risk of autism symptoms (47,XXY), and a comparison with idiopathic autism spectrum disorder

NARCIS (Netherlands)

Goddard, Marcia Naomi

2015-01-01

Klinefelter syndrome (47,XXY) is associated with a wide range of behavioral problems, including autism symptomatology. In the current thesis, brain structure and function were assesed in boys with 47,XXY, boys with idiopathic autism spectrum disorder, and non-clinical controls, using multiple

La pedagogía profesional del siglo XXI

Directory of Open Access Journals (Sweden)

Jordi Riera i Romaní

2008-01-01

Full Text Available El artículo hace un breve repaso en torno a tres aspectos fundamentales respecto la pedagogía y la función profesional del pedagogo/a del siglo XXI. En primer lugar reseñar algunos de los ejes de transición pedagógica en los que estamos inmersos en este cambio de siglo. En segundo lugar, y derivado de este primer análisis, se apuntan algunos aspectos de la evolución de la identidad profesional pedagógica y de su formación universitaria. Finalmente, se apunta la importancia que en este proceso tendrá la capacidad de organización profesional del colectivo para poder desarrollar óptimamente su función social.

Proceedings of 7. international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century'

International Nuclear Information System (INIS)

Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

2007-05-01

Abstracts of the seventh international scientific conference 'Sakharov readings 2007: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

Proceedings of 6. international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century'. Pt. 1; Materialy 6-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2006 goda: Ehkologicheskie problemy XXI veka'. Ch. 1

Energy Technology Data Exchange (ETDEWEB)

Kundas, S P; Okeanov, A E; Poznyak, S S [International A. Sakharov environmental univ., Minsk (Belarus)

2006-05-15

The first part of proceedings of the sixth international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 1; Materialy 5-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2005 goda: Ehkologicheskie problemy XXI veka'. Ch. 1

Energy Technology Data Exchange (ETDEWEB)

Kundas, S P; Okeanov, A E [International A. Sakharov environmental univ., Minsk (Belarus); Shevchuk, V E [Kamiteht pa prablemam nastupstvaw katastrofy na Charnobyl' skaj AEhS pry Savetse Ministraw Rehspubliki Belarus' , Minsk (Belarus)

2005-05-15

The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: socio-ecological problems, medical ecology, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

Sexismo en la publicidad gráfica del siglo XXI

OpenAIRE

Lesmes Fradejas, Yanire

2014-01-01

En la presente investigación se ha tratado el tema de la representación de la mujer estereotipada en la publicidad gráfica del siglo XXI. La publicidad hoy en día sigue teniendo rasgos sexistas y es lo que se ha querido demostrar mediante el análisis de varias gráficas debidamente clasificadas por categorías de productos donde la novedad recae sobre el análisis de publicidad con fines sociales y contra la violencia de género, encontrando en estas también signos de sexismo. Asimismo y bajo la ...

Siglo XXI: reto a la información

Directory of Open Access Journals (Sweden)

Luz Ángela Osorio Bernal

2002-10-01

Full Text Available En los inicios del siglo XXI, la Facultad de Medicina de la Universidad Nacional de Colombia debe abordar el reto de la educación en salud con una visión moderna y adecuada a las técnicas actuales de la informática y la comunicación. Esto sin desconocer nuestra trayectoria docente y profesional que es, precisamente, donde se encuentra nuestra mayor fortaleza. Es por ello, que la administración actual se ha empeñado en convocar a los docentes de las cinco carreras de nuestra facultad a producir un hipertexto propio, dentro las múltiples políticas tendientes a la actualización y producción del saber autóctono, en coordinación con el conocimiento universal.

Estimation of regional intrapulmonary moisture volumes by pulmonary CT numbers in CT views

International Nuclear Information System (INIS)

Nakamoto, Takaaki; Kato, Shiro; Yoshimura, Masaharu

1987-01-01

In order to study the regional intrapulmonary moisture volume in normal lungs, lungs with congestion, and lungs with increased blood flow, a series of 42 subjects underwent transverse computed tomography (CT) scanning performed at a total of 17 points corresponding to the upper (7), middle (3), and lower (7) lung fields. The subjects were divided into group I (n = 24, with left-sided heart failure), group II (n = 8, with left-to-right shunt heart disease), and group III (n = 10, normals). In group I, the pulmonary peripheral minus CT numbers were inversely correlated with the pulmonary wedge mean pressure and pulmonary arterial mean pressure; and were linearly correlated with pulmonary blood flow (PBF). In group II, they were inversely correlated with PBF and left-to-right shunt volume. The pulmonary pheripheral CT numbers were significantly higher in both groups I and II than group III. In group III, these CT numbers were higher in the posterior field than the anterior field in supine position. (Hou, H.L.)

Construcción con tierra en el siglo XXI

Directory of Open Access Journals (Sweden)

Bestraten, S.

2011-09-01

Full Text Available Earthen construction during the 21rst century first decade has resurfaced worldwide as a sustainable, low environmental impact and great expressive material. The research and the number of projects has been increased related to the growth of the associations, institutions, universities and events surrounding this sector. These projects have managed to modernize the traditional techniques of building with earth in order to adapt them to today’s projecting needs, and have been widely recognized for its quality. The aim of this article is to provide a global view on earth construction internationally, providing technical data of its utilization in contemporary architectural projects.

La construcción con tierra durante la primera década del siglo XXI ha resurgido en todo el mundo como un material con propiedades sostenibles, de bajo impacto ambiental y de gran capacidad expresiva. Se ha experimentado un crecimiento a nivel de proyectos e investigaciones sobre el material relacionado con el aumento de número de asociaciones, instituciones, universidades y eventos alrededor de este sector. Los proyectos actuales han sabido modernizar las técnicas tradicionales de construcción con tierra para adaptarlas a las necesidades proyectuales y constructivas, siendo ampliamente reconocidos por su calidad. El objetivo de este artículo es ofrecer una visión actual sobre la construcción con tierra a nivel internacional, aportando datos técnicos de su utilización en proyectos arquitectónicos contemporáneos.

Madrid en el siglo XXI. Transformaciones y retos de su realidad social. La Realidad Social de Madrid Vol. II

Directory of Open Access Journals (Sweden)

Mª del Pilar Gomiz Pascual

2014-03-01

Full Text Available Madrid en el siglo XXI. Transformaciones y retos de su realidad social  es el título elegido por la Asociación Madrileña de Sociología (AMS para el segundo volumen de lo que pretende ser una trilogía sobre la Realidad Social de Madrid. Tras el éxito del trabajo realizado con el primer volumen, Antonio Lucas Marín, Carmen Cortés Beltrán y Dolores Cáceres Zapatero, vuelven a coordinar un proyecto excelente donde se da un paso más al esfuerzo comenzado con la edición anterior por dar a conocer aspectos nuevos de la estructura social del Madrid del siglo XXI, aportando enfoques y matices que quedaron sin analizar entonces. 

Viajando con Don Quijote en el siglo XXI

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Odilíe Rojas-López

2006-06-01

Full Text Available Don Quixote has ridden with us for a long time now, and as if his fight against windmills were not enough, Don Quixote still has many more difficult situations to combat in the present times. Will the Knight of the Sad Figure accomplish this new deed? It is our challenge to find an answer to this inquiry. For this purpose, the author of this essay inserts the Knight of the Sad Figure in XXI century society. The author transforms the values, costumes and points of view of the times of the literary piece and establishes a series of relationships between the literary text, the main character and several current daily life situations. Don Quixote will certainly continue his fight against all the conditions we encounter nowadays. There is no doubt, then, that this knight still lives among us.

Estimation of surface area and pore volume of activated carbons by methylene blue and iodine numbers

Directory of Open Access Journals (Sweden)

Cleiton A. Nunes

2011-01-01

Full Text Available Data of methylene blue number and iodine number of activated carbons samples were calibrated against the respective surface area, micropore volume and total pore volume using multiple regression. The models obtained from the calibrations were used in predicting these physical properties of a test group of activated carbon samples produced from several raw materials. In all cases, the predicted values were in good agreement with the expected values. The method allows extracting more information from the methylene blue and iodine adsorption studies than normally obtained with this type of material.

Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 2; Materialy 5-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2005 goda: Ehkologicheskie problemy XXI veka'. Ch. 2

Energy Technology Data Exchange (ETDEWEB)

Kundas, S P; Okeanov, A E [International A. Sakharov environmental univ., Minsk (Belarus); Shevchuk, V E [Kamiteht pa prablemam nastupstvaw katastrofy na Charnobyl' skaj AEhS pry Savetse Ministraw Rehspubliki Belarus' , Minsk (Belarus)

2005-05-15

The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: radioecology, ecological and radiation monitoring, new information systems and technologies in ecology, priority ecological power engineering, management in ecology, ecological education. The proceedings are intended for specialists in field of ecology and related sciences, dosimetry, engineers, teachers, students and post-graduate students.

Equipos estratégicos: Una alternativa para las empresas del siglo XXI

OpenAIRE

Francisco Batlle; Keila Gómez

2007-01-01

En este artículo se analiza la evolución de los grupos de trabajo a equipos estratégicos como respuesta a la necesidad de permear el pensamiento estratégico en todos los niveles de la organización; se caracteriza el equipo en atención a sus valores, misión y la sinergia resultante de un liderazgo compartido y resonante. Se concluye, luego del análisis de los diferentes tipos de equipos, con la propuesta de los equipos autodirigidos como una alternativa para las empresas del siglo XXI.

Nuevos retos en la educación del siglo XXI

Directory of Open Access Journals (Sweden)

Isidoro Arroyo Almaraz

2012-04-01

Full Text Available La educación del siglo XXI reclama una esfera de ética y de responsabilidad social  compartida entre profesores, padres, instituciones y alumnos que nos permitan conseguir un espacio de simpatía recíproca e introduzca la educación  tecnológica, que se hace necesaria para desarrollar la accesibilidad a la información a través de las interacciones con las nuevas interfaces. La selección de nuevos contenidos multimedia e hipermedia. La utilización de datos procedentes de fuentes diversasy las nuevas formas de trabajo cooperativo a través de Internet: blogs, foros, chats, etc

[The scientific revolution in medicine of second half of XX - early XXI centuries: occurrence of new conceptions about human organism and essence of diseases].

Science.gov (United States)

Stepin, V S; Zatravkin, S N

2016-01-01

The article presents the results of analysis of works of supreme Russian physiologists and pathologists of XX-XXI centuries. The analysis was applied on the basis concept of structure and dynamics of scientific cognition developed by one o the authors of the present article. The applied analysis permits affirming that during second half of XX-early XXI centuries in medicine occurred and continues to occurring transformations whose character and scope totally corresponds to scientific revolution and occurring and establishing in medicine new conceptions have all signs permitting referring them to post-neoclassic type of scientific rationality.

ATLAS “RUSSIAN ARCTIC IN XXI CENTURY: NATURAL CHALLENGES AND RISKS OF DEVELOPMENT”

Directory of Open Access Journals (Sweden)

N. A. Alekseevskiy

2013-01-01

Full Text Available  The huge investigation of Arctic region of Russia was performed by team of researchers from Faculty of Geography of Lomonosov Moscow State University. This investigation resulted in creation of atlas “Russian Arctic in XXI century: natural challenges and risks of development”. In the first place this atlas was made for pupils and school teachers, letting them study modern features of natural environment and socio-economical processes. Atlas contains 7 sections, including both natural and socio-economical maps.

Distribution of volumes of individual glomeruli in kidneys at autopsy: association with age, nephron number, birth weight and body mass index.

Science.gov (United States)

Hoy, W E; Hughson, M D; Zimanyi, M; Samuel, T; Douglas-Denton, R; Holden, L; Mott, S; Bertram, J F

2010-11-01

Glomerular hypertrophy occurs in a number of normal and pathological states. Glomerular volume in kidneys at autopsy is usually indirectly derived from estimates of total glomerular mass and nephron number, and provides only a single value per kidney, with no indication of the range of volumes of glomeruli within the kidney of any given subject. We review findings of the distribution of volumes of different glomeruli within subjects without kidney disease, and their correlations with age, nephron number, birth weight and body mass index (BMI). The study describes findings from autopsy kidneys of selected adult white males from the Southeast USA who had unexpected deaths, and who did not have renal scarring or renal disease. Total glomerular (nephron) number and total glomerular volume were estimated using the disector/fractionator combination, and mean glomerular volume (Vglom) was derived. The volumes of 30 individual glomeruli (IGV) in each subject were determined using the disector/Cavalieri method. IGV values were compared by categories of age, nephron number, birth weight and BMI. There was substantial variation in IGV within subjects. Older age, lower nephron number, lower birth weight and gross obesity were associated with higher mean IGV and with greater IGV heterogeneity. High Vglom and high IGVs were associated with more glomerulosclerosis. However, amongst the generally modest numbers of sclerosed glomeruli, the pattern was uniformly of ischemic collapse of the glomerular tuft. There was no detectable focal segmental glomerular tuft injury. In this series of people without overt renal disease, greater age, nephron deficit, lower birth weight and obesity were marked by glomerular enlargement and greater glomerular volume heterogeneity within individuals.

Salamanca como referente simbólico: la urbe del siglo XXI en Tierra Violenta de Luciano G. Egido

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Ana Eva Rodríguez Valentín

2017-02-01

Full Text Available El propósito de este artículo es examinar el material simbólico y los vínculos sociales entre la memoria colectiva, la identidad y el espacio de Salamanca, en el siglo XXI a través de la novela, Tierra Violenta, de Luciano G. Egido. Desde esta perspectiva, propongo una lectura del texto que nos ayude a entender cómo las circunstancias políticas y económicas determinan la estructura de la ciudad; que cambia, a su vez,  la vida de sus habitantes. Se trata de una ciudad que, aparentemente, vive en el pasado, pero que no es inmune a los mecanismos que rigen el siglo XXI. En esta aproximación, el texto literario es una fuente de distintas líneas de análisis para entender las temporalidades urbanas y la dialéctica de ambos, el proyecto público y  la herencia urbana.

El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI

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Rina Márceles de Sanz

2015-10-01

Full Text Available El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI se fundamentan en un proceso analítico, reflexivo y etnográfico, que determina en primera instancia algunos criterios importantes acerca del concepto de universidad para ver hacia dónde se proyecta. Este artículo analiza las concepciones de la práctica pedagógica bajo la luz de destacados autores como Olga Lucía Zuluaga, quien viene investigando el tema desde hace varias décadas y Basil Bernstein quien la estudia desde las relaciones sociales y de poder. Por último se hace una propuesta metodológica que se basa en la solución de problemas y la enseñanza problémica para lograr los cambios significativos que amerita la educación superior del siglo XXI.AbstractThe specific knowledge and the pedagogic practice in the higher/collage educational context of the XXI century is based on an analytical, reflexive and ethnographic process, that determines in first place some important criteria about the university concept to foresee where it is projected. This article focuses of teaching practices in light of authors such as Olga Lucia Zuluaga, who has been investigating the issue for several decades and Basil Berstein who has been studying the social and power relations. Finally a methodological proposal is being considered based on problem solutions and the teaching to achieve meaningful changes that Higher Education for the XXI century deserves. 

Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 1

International Nuclear Information System (INIS)

Kundas, S.P.; Okeanov, A.E.; Shevchuk, V.E.

2005-05-01

The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: socio-ecological problems, medical ecology, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

Proceedings of 6. international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century'. Pt. 1

International Nuclear Information System (INIS)

Kundas, S.P.; Okeanov, A.E.; Poznyak, S.S.

2006-05-01

The first part of proceedings of the sixth international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems, medical ecology, biomonitoring and bioindication, biological ecology. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

On the Growth of the Number of Hyperbolic Gravitational Instantons with respect to Volume

OpenAIRE

Ratcliffe, John G.; Tschantz, Steven T.

2000-01-01

In this paper, we show that the number of hyperbolic gravitational instantons grows superexponentially with respect to volume. As an application, we show that the Hartle-Hawking wave function for the universe is infinitely peaked at a certain closed hyperbolic 3-manifold.

La evolución del juego de ataque en balonmano. Revisión histórica: Los inicios del Siglo XXI.

Directory of Open Access Journals (Sweden)

Juan de Dios Román Seco

2009-12-01

XXI, Evolución, Ataque, Deporte Espectáculo.   Abstract Modern sport evolves quickly in a supra-sport context according to the demands of the show. This has forced in certain moments to introduce norms in order to get an attractive game that responds to the complex demands of the marketing and sale of the product. Handball, though a relatively young sport, can not be far from the competitive market, sport promotion, the television, media, spectators, etc. Professionalization was the best way to improve habits in favor of the show. Specialists, managers of elite players and those  new to the game,  should not forget the roots, the bases and the historical evolution of the offensive aspect of this sport. The knowledge of these should be good to contribute creative ideas that enrich, if it's possible the dynamism, intelligence and competitiveness of handball.   This article is a review of  the  work published  in the volume two of this journal,  “The beginnings of the XXI century: evolution and tendencies of the game”. Key words: Handball, XXI Century, Evolution, Attacks, Show.

Air Force Journal of Logsitics. Volume 31, Number 3, Fall 2007

Science.gov (United States)

2007-01-01

Prc s roemn DLA Fowr Stokig: An Ecnoi Anlyi O f0122002 htp :/w w.fmahqafmi/gj/Afjhmehm AIR FORCE JOURNAL LOGISTICS Volume XXXI, Number 3 Fall 2007...Foc spl sytm and our ledrhpi plnnn is main ls tic plyi ag m s si uato s an exrie trl meanigful AFL A You LgsisSuiesadAayisCneto htp :/w w.fIahqafmi...less than 5 years (in accordance with CAF LSC - Combat Air Forces Logistics Support Air Force Manual 23-I 10). Therefore. the model evaluates Center

La premsa valenciana en la primera dècada del segle XXI

OpenAIRE

Martínez Sanchis, Francesc; González i Montserrat Jurado, José Luis; Doménech Fabregat, Hugo

2011-01-01

La premsa valenciana d'informació general en la primera dècada del segle XXI es caracteritza per l'aposta multimèdia dels grans diaris regionals, el domini del castellà com a llengua de comunicació i una forta expansió deis periódics gratuïts impresos i els diaris digitals. La premsa actual continua tenint la província com a límit. No hi ha una premsa regional de forta implantació en tot el territori valencià. In the first decade of the 21st century, the Valencia...

Equipos estratégicos: Una alternativa para las empresas del siglo XXI

Directory of Open Access Journals (Sweden)

Francisco Batlle

2007-05-01

Full Text Available En este artículo se analiza la evolución de los grupos de trabajo a equipos estratégicos como respuesta a la necesidad de permear el pensamiento estratégico en todos los niveles de la organización; se caracteriza el equipo en atención a sus valores, misión y la sinergia resultante de un liderazgo compartido y resonante. Se concluye, luego del análisis de los diferentes tipos de equipos, con la propuesta de los equipos autodirigidos como una alternativa para las empresas del siglo XXI.

Design-based estimation of neuronal number and individual neuronal volume in the rat hippocampus

DEFF Research Database (Denmark)

Hosseini-Sharifabad, Mohammad; Nyengaard, Jens Randel

2007-01-01

Tools recently developed in stereology were employed for unbiased estimation of the neuronal number and volume in three major subdivisions of rat hippocampus (dentate granular, CA1 and CA3 pyramidal layers). The optical fractionator is used extensively in quantitative studies of the hippocampus; ...

A simple screening method for detection of Klinefelter syndrome and other X-chromosome aneuploidies based on copy number of the androgen receptor gene

DEFF Research Database (Denmark)

Ottesen, A M; Garn, I D; Aksglaede, L

2007-01-01

Due to the high prevalence and variable phenotype of patients with Klinefelter syndrome, there is a need for a robust and rapid screening method allowing early diagnosis. Here, we report on the development and detailed clinical validation of a quantitative real-time PCR (qPCR)-based method...... of the copy number assessment of the androgen receptor (AR) gene, located to Xq11.2-q12. We analysed samples from 50 individuals, including a healthy male and female controls and patients with Klinefelter syndrome (47,XXY; 48,XXXY) (n = 28), mosaicisms (46,XX/47,XXY/48XXYY; 45,X/46,XY) (n = 3), other sex......-gene expression. The XIST-expression based assay was correct in only 29/36 samples (81%). Our findings demonstrated that the AR-qPCR technique is a simple and reliable screening method for diagnosis of patients with Klinefelter syndrome or other chromosomal disorders involving an aberrant number of X-chromosomes....

El socialismo del siglo XXI, ¿una alternativa factible?

Directory of Open Access Journals (Sweden)

Alejandro Agafonow

2009-06-01

Full Text Available Este escrito hace un análisis crítico de una de las fuentes del socialismo del siglo XXI. Los regímenes socialistas del siglo XX distorsionaron el modelo teórico marxista, en parte debido a la imposibilidad del cálculo económico en el sistema socialista centralizado. Allin Cottrell y Paul Cockshott sostienen que esta imposibilidad se puede superar con el uso de computadores y la tecnología de Internet. El artículo critica algunos aspectos económicos y políticos de su propuesta. La crítica de los aspectos económicos se inspira en el socialismo de mercado, mientras que la de los aspectos políticos se desarrolla a partir de los debates sobre el liberalismo político o igualitario.

The turning points of world history : financial and methodological interpretations

OpenAIRE

Kukliński, Antoni (ed.); Pawłowski, Krzysztof (ed.); Swianiewicz, Jan (ed.)

2012-01-01

Volumes VI and VII of the REUPUS Series “The Atlantic Community. The Titanic of the XXI Century?” and “The Turning Points of World History” can be seen as twin volumes trying to find new empirical observations, new methodological approaches and new value judgements to face the enigma of the XXI Century. Those volumes try to present some new interpretations of one of the greatest turning points of human history which is the essential feature of our times... Volume VII is the ...

Proceedings of 8. international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century'; Materialy 8-oj mezhdunarodnoj nauchnoj konferentsii 'Sakharovskie chteniya 2008 goda: Ehkologicheskie problemy XXI veka'

Energy Technology Data Exchange (ETDEWEB)

Kundas, S P; Mel' nov, S B; Poznyak, S S [International A. Sakharov environmental univ., Minsk (Belarus)

2008-05-15

The proceedings of the eighth international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems in the light of ideas of academic A. Sakharov; medical ecology; bioecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology; ecological management; ecological monitoring; ecological education, education for sustainable development; ecological ethics in bioethics education system; problems and prospects of renewable energetics development in Belarus. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

Observation and modelling of the Fe XXI line profile observed by IRIS during the impulsive phase of flares

Science.gov (United States)

Polito, V.; Testa, P.; De Pontieu, B.; Allred, J. C.

2017-12-01

The observation of the high temperature (above 10 MK) Fe XXI 1354.1 A line with the Interface Region Imaging Spectrograph (IRIS) has provided significant insights into the chromospheric evaporation process in flares. In particular, the line is often observed to be completely blueshifted, in contrast to previous observations at lower spatial and spectral resolution, and in agreement with predictions from theoretical models. Interestingly, the line is also observed to be mostly symmetric and with a large excess above the thermal width. One popular interpretation for the excess broadening is given by assuming a superposition of flows from different loop strands. In this work, we perform a statistical analysis of Fe XXI line profiles observed by IRIS during the impulsive phase of flares and compare our results with hydrodynamic simulations of multi-thread flare loops performed with the 1D RADYN code. Our results indicate that the multi-thread models cannot easily reproduce the symmetry of the line and that some other physical process might need to be invoked in order to explain the observed profiles.

Comparative analyses of the neuron numbers and volumes of the amygdaloid complex in old and new world primates.

Science.gov (United States)

Carlo, C N; Stefanacci, L; Semendeferi, K; Stevens, C F

2010-04-15

The amygdaloid complex (AC), a key component of the limbic system, is a brain region critical for the detection and interpretation of emotionally salient information. Therefore, changes in its structure and function are likely to provide correlates of mood and emotion disorders, diseases that afflict a large portion of the human population. Previous gross comparisons of the AC in control and diseased individuals have, however, mainly failed to discover these expected correlations with diseases. We have characterized AC nuclei in different nonhuman primate species to establish a baseline for more refined comparisons between the normal and the diseased amygdala. AC nuclei volume and neuron number in 19 subdivisions are reported from 13 Old and New World primate brains, spanning five primate species, and compared with corresponding data from humans. Analysis of the four largest AC nuclei revealed that volume and neuron number of one component, the central nucleus, has a negative allometric relationship with total amygdala volume and neuron number, which is in contrast with the isometric relationship found in the other AC nuclei (for both neuron number and volume). Neuron density decreases across all four nuclei according to a single power law with an exponent of about minus one-half. Because we have included quantitative comparisons with great apes and humans, our conclusions apply to human brains, and our scaling laws can potentially be used to study the anatomical correlates of the amygdala in disorders involving pathological emotion processing. (c) 2009 Wiley-Liss, Inc.

Proceedings of 6. international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century'. Pt. 2

International Nuclear Information System (INIS)

Kundas, S.P.; Okeanov, A.E.; Poznyak, S.S.

2006-05-01

The second part of proceedings of the sixth international scientific conference 'Sakharov readings 2006: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: radioecology, environmental monitoring, information systems and technologies in ecology, ecological priority energy engineering, ecological management and ecological education. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

Internacional : el Pacífico. Océano del siglo XXI (Coyuntura)

OpenAIRE

Salgado Tamayo, Wilma

1997-01-01

El impresionante crecimiento económico de los países del Pacífico asiático en los últimos veinte años, que contrasta con el lento crecimiento de los países industrializados, ha llevado a muchos autores a sostener que el centro de gravedad de la economía mundial se está desplazando desde la Cuenca del Atlántico hacia la Cuenca del Pacífico y en ese sentido convertirse en el Océano del Siglo XXI. Un análisis más detallado, muestra sin embargo que en la Cuenca del Pacifico confluyen países y reg...

Restoration metropole XXI, as a problem solving between old potential to the future sustainability of values

Science.gov (United States)

Indra, M.

2018-03-01

Cinema Metropole XXI is one of the heritage buildings located in the heart of Menteng area, with “art deco” architecture. The appereance of this building is very beautiful and very impressed from other buildings, become strong Icon around the Menteng neighborhood. In 2010 the building was bought by Cinema 21, where the physical condition is very messy and looks slum. The emergence of modern shopping and entertainment centers are also complete with cinema facilities are more comfortable and complete, While the atmosphere of this old cinema is considered uncomfortable for visitors, so slowly abandoned by customers. The status of the cultural heritage inherent in this building becomes an obstacle by owners to renew this building, until the cinema closes in some time. The loss of the long-standing potential of cultural heritage buildings due to the transformation of urban development is an important issue in this paper, this case study is the author’s experience in regenerating the future potential at this heritage building. This writing is done by Descriptive Analysis method from various reference approaches and theory of cultural heritage values involved in the restoration of Metropole XXI cinema. The conclusions of this paper find a real solution to problem solving for the sustainability of this building.

Vision of Nuclear Power Options for XXI Century

Energy Technology Data Exchange (ETDEWEB)

Adamov, E.; Muraviev, E.; Orlov, V.

2007-07-01

This work once again brings to attention the fundamental ideas of the long-term nuclear power development on the basis of the new generation of Fast neutron Reactors, naturally safe, economically attractive and employing the proliferation-resistant and low-waste fuel cycle. The Universal System Model (USM-1), new analytical research tool recently developed in N.A. Dollezhal Research and Design Institute of Power Engineering (Moscow, Russia) has been used to evaluate several scenarios (including traditional ones) of the World nuclear power development for electricity production within the XXI century. For scenarios comparison 3 criteria were used: the levelized cost of electricity, the fuel supply security (in terms of natural uranium total consumption and prospects for further fuel balance), and the potential hazard of radioactive wastes. The clear advantage of scenario with the most complete realization of the new Fast Reactors technology potential is revealed. The authors strongly believe that the prospects of this new technology worldwide implementation deserve the due attention of responsible governments and international organizations. 2 Tables, 13 Figures, 10 References. (auth)

Bacillus thuringiensis: the legacy to the XXI century

Directory of Open Access Journals (Sweden)

M. Realpe

1998-01-01

Full Text Available Bacillus thuringiensis-based insecticides are the main production line of the biopesticides world market. The research devoted to this area, promoted by the necessity to solve problems in agriculture and public health has resulted in an exhaustive knowledge of its biology. The diversity of the B. thuringiensis strains has permitted to develop several products mainly, but not exclusively, for insect control. With the new developments in the field of molecular biology, it has been possible to understand the molecular basis of the mode of action and to increase the range of activity as well. As a result of the broad use in several countries, resistant strains of some of the susceptible insects have appeared. The aim of this review is to elaborate a theoretical framework of the current state of research on B. thuringiensis, describing briefly the knowledge on this bacterium, with emphasis on biological phenomena that underlie its toxic activity and the problems that will be faced during the XXI century with the increasingly common resistance, all this analyzed from a biotechnological perspective.

Proceedings of 5. international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century'. Pt. 2

International Nuclear Information System (INIS)

Kundas, S.P.; Okeanov, A.E.; Shevchuk, V.E.

2005-05-01

The first part of proceedings of the fifth international scientific conference 'Sakharov readings 2005: Ecological problems of XXI century', which was held in the International A. Sakharov Environmental University, contents materials on topics: radioecology, ecological and radiation monitoring, new information systems and technologies in ecology, priority ecological power engineering, management in ecology, ecological education. The proceedings are intended for specialists in field of ecology and related sciences, dosimetry, engineers, teachers, students and post-graduate students

Marcha de absorção dos micronutrientes para mudas de goiabeiras cultivares Paluma e Século XXI Micronutrient uptake in ‘Paluma’ and ‘Século XXI’ guava cuttings

Directory of Open Access Journals (Sweden)

Claudenir Facincani Franco

2008-01-01

Full Text Available O conhecimento da marcha de absorção dos micronutrientes em mudas de goiabeira garante melhor eficiência da adubação. O objetivo do trabalho foi determinar a marcha de absorção de micronutrientes em mudas de duas cultivares de goiabeira. O delineamento experimental utilizado foi em parcelas subdivididas com três repetições. Assim, foram utilizadas como tratamentos principais duas cultivares de goiabeira (Paluma e Século XXI obtidas por estacas herbáceas e como subparcelas, sete coletas de plantas, ao longo do período experimental (120 dias. Nos diferentes órgãos das mudas (folhas, caule e raízes, avaliou-se o acúmulo de micronutrientes, a cada quinze dias. A muda de goiabeira da cultivar Século XXI é mais exigente em micronutrientes do que as mudas da cultivar Paluma. O acúmulo médio de micronutrientes pelas mudas de goiabeira obedeceu à seguinte seqüência: Fe>Mn>Zn>B>Cu, sendo maior nas folhas para B, Cu, Mn e Zn, e nas raízes para Fe. O acúmulo de micronutrientes para as cultivares Paluma e Século XXI em µg por planta foi de: B (632 e 783, Cu (134 e 158, Fe (8103 e 5534, Mn (3052 e 3709 e Zn (760 e 997 respectivamente.Understanding micronutrient uptake in guava cuttings guarantees efficient fertilization. This research was undertaken to measure micronutrient uptake in cuttings from two guava cultivars. The experimental design was arranged in split-plots with three replications. Plots were represented by herbaceous cuttings from the guava cultivars 'Paluma' and 'Século XXI', while split-plots were the seven sampling dates during a 120-day period in nutritive solution. Accumulation of micronutrients was determined in the different plant organs every two weeks. The guava cultivar 'Século XXI' has higher micronutrient requirements than 'Paluma'. The mean micronutrient accumulation followed the order: Fe>Mn>Zn>B>Cu. The accumulation of B, Cu, Mn and Zn was higher in leaves, while Fe was more accumulated in roots

Tecnología, competitividad y agroindustria: La revolución verde en el siglo XXI

OpenAIRE

Freddy José Pinto Figueroa; Maristela Vega

2003-01-01

El manejo agroindustrial venezolano fue básico en eficiencia y desarrollo. Llegado el siglo XXI, se asumen decisiones basadas en adelantos tecnológicos. Nace la “Revolución Verde”, buscando solucionar problemas, ecológica y equilibradamente. La incorporación venezolana a MERCOSUR, motiva investigar experiencias de países miembros. Aspecto resaltante es acceder a tecnologías con rasgos de reinserción en economías globalizadas, bajo cambios tecnoproductivos. Esto circunscribe la producción pri...

Summaries of oral sessions at the XXI World Congress of Psychiatric Genetics, Boston, Massachusetts, 17-21 October 2013: state of the field

NARCIS (Netherlands)

Akpudo, H.; Aleksic, B.; Alkelai, A.; Burton, C.; Carillo Roa, T.; Chen, D.T.; Cheng, M.C.; Cocchi, E.; Davis, L.K.; Giori, I.G.; Hubbard, L.M.; Merikangas, A.; Moily, N.S.; Okewole, A.; Olfson, E.; Pappa, I.; Reitt, M.; Singh, A.B.; Steinberg, J.; Strohmaier, J.; Ting, T.T.; Hulzen, K.J.E. van; O'Shea, A.; DeLisi, L.E.

2014-01-01

The XXI World Congress of Psychiatric Genetics (WCPG), sponsored by the International Society of Psychiatric Genetics (ISPG), took place in Boston, Massachusetts, on 17-21 October 2013. Approximately 900 participants gathered to discuss the latest findings in this rapidly advancing field. The

Los retos de la administración tributaria al inicio del siglo XXI

OpenAIRE

Salamanca, Fabio

2011-01-01

El autor en este artículo señala que uno de los retos de la administración tributaria del siglo XXI, consiste en actuar con rapidez ante la dinámica con la que se mueve el comercio electrónico, en el marco de la globalización mundial para mitigar los riesgos potenciales asociados a las nuevas formas de interacción de los ciudadanos en función de las nuevas tecnologías especialmente las relacionadas con la informática y la telemática. Así mismo, la exactitud con la que la administración tribut...

Gender perspective and the role of universities in the XXI century

Directory of Open Access Journals (Sweden)

Inmaculada LÓPEZ-FRANCÉS

2015-01-01

Full Text Available The article shows the emerging line of research and teaching being developed by the authors. It starts from the perceived needs of the students in two universities: the University of Valencia and the Autonomous University of the State of Morelos; data is collected through a questionnaire (designed ad hoc and validated and several discussion groups. The performance of teachers is considered a catalyst in the construction of new identities and ethical professionals capable of meeting the challenges of the XXI century. It explores and identifies some challenges to allow the development of teaching, research and management free of gender bias. It concludes by recognizing the interdependence and the need to care for cooperative action and networking in order to enable sustainable, equitable and reciprocal human development.

Vision Servo Motion Control and Error Analysis of a Coplanar XXY Stage for Image Alignment Motion

Directory of Open Access Journals (Sweden)

Hau-Wei Lee

2013-01-01

Full Text Available In recent years, as there is demand for smart mobile phones with touch panels, the alignment/compensation system of alignment stage with vision servo control has also increased. Due to the fact that the traditional stacked-type XYθ stage has cumulative errors of assembly and it is heavy, it has been gradually replaced by the coplanar stage characterized by three actuators on the same plane with three degrees of freedom. The simplest image alignment mode uses two cameras as the equipments for feedback control, and the work piece is placed on the working stage. The work piece is usually engraved/marked. After the cameras capture images and when the position of the mark in the camera is obtained by image processing, the mark can be moved to the designated position in the camera by moving the stage and using alignment algorithm. This study used a coplanar XXY stage with 1 μm positioning resolution. Due to the fact that the resolution of the camera is about 3.75 μm per pixel, thus a subpixel technology is used, and the linear and angular alignment repeatability of the alignment system can achieve 1 μm and 5 arcsec, respectively. The visual servo motion control for alignment motion is completed within 1 second using the coplanar XXY stage.

A combined volume-of-fluid method and low-Mach-number approach for DNS of evaporating droplets in turbulence

Science.gov (United States)

Dodd, Michael; Ferrante, Antonino

2017-11-01

Our objective is to perform DNS of finite-size droplets that are evaporating in isotropic turbulence. This requires fully resolving the process of momentum, heat, and mass transfer between the droplets and surrounding gas. We developed a combined volume-of-fluid (VOF) method and low-Mach-number approach to simulate this flow. The two main novelties of the method are: (i) the VOF algorithm captures the motion of the liquid gas interface in the presence of mass transfer due to evaporation and condensation without requiring a projection step for the liquid velocity, and (ii) the low-Mach-number approach allows for local volume changes caused by phase change while the total volume of the liquid-gas system is constant. The method is verified against an analytical solution for a Stefan flow problem, and the D2 law is verified for a single droplet in quiescent gas. We also demonstrate the schemes robustness when performing DNS of an evaporating droplet in forced isotropic turbulence.

IDENTIDADE NACIONAL: A NEGAÇÃO DO FASCISMO PELOS BRASILEIROS DO SÉCULO XXI

OpenAIRE

Souza, Eliza Militz de; UFSM; Armani, Carlos Henrique; UFSM

2016-01-01

Este artigo resulta do desenvolvimento de uma pesquisa acerca das características do fascismo presentes em discursos de alguns políticos e parte da população no Brasil em pleno século XXI, partindo principalmente de uma ideia de identidade nacional, o não reconhecimento de que suas ideias e modo de agir são fascistas, os problemas da educação “bancária” neste sentido e a influência da mídia hegemônica do país. Palavras-chave: Identidade Nacional, fascismo, educação

La intermedialidad en el siglo XXI

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Ruth Cubillo Paniagua

2013-08-01

Full Text Available El frenético y paradójico movimiento que marca la convivencia de los individuos en el siglo XXI, produce cambios en las formas de representación de la realidad, pues al cambiar nuestra percepción del mundo y la forma en que habitamos en él, cambian las maneras de representarlo. Aquí surge y se hace útil la noción de intermedialidad, porque nos permite dar cuenta de los espacios de diálogo entre las prácticas significantes -o procesos artístico-culturales- y los medios tecnológicos o digitales. Cuando se habla de intermedialidades surgen varias preguntas fundamentales: ¿qué sucede cuando dialogan diversas manifestaciones artísticas ontológicamente tradicionales con las formas de expresión propias de las tecnologías digitales? ¿Cuáles son las implicaciones del concepto de intermedialidad? y, en el contexto de la academia, ¿qué nuevos campos de estudio surgen al partir de esta noción? ¿Qué impacto tienen los estudios desde la intermedialidad sobre el proceso de enseñanza-aprendizaje y sobre la investigación que efectuamos desde las diversas disciplinas, sobre el mundo de la industria cultural y sobre el patrimonio cultural de  nuestros países? Algunas de estas preguntas procuran ser contestadas en este trabajo, otras solamente se plantean para generar un debate necesario.

Liderazgo educativo y retos de la educación superior en el siglo XXI: hacia la visión y la acción

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Ana Monge

2003-06-01

Full Text Available In this article, we are developing some ideas and proposals for an educational leadership exercise in order to assume higher education´s main challenges in the XXI century. In this reflection we are taking into consideration the universities´commitments in the construction of more fair and equitable societies according to its necessities and demands in a historical moment distinguished by globalization and scientific technological development. Therefore, we have to emphasize the permanent links between education and economic and social development; besides, we take back some of the ideas presented at the higher education world conference in 1998, which evidenced the implications of the main challenges that education faces in the XXI century. For that reason it is of vital importance, a type of leadership that responds effectively to those challenges through belligerent, participative and precise actions.

Educación y Psicología en el Siglo XXI

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Juan Enrique Fernández Romar

2015-02-01

Full Text Available Educación y Psicología en el Siglo XXI es un buen ejemplo de este tipo de recopilaciones y da cuenta al mismo tiempo del estado del arte de estas dimensiones en el Uruguay contemporáneo. Se trata de un libro que reúne la producción reciente más destacada de diez docentes de la Facultad de Psicología de la Universidad de la República, que trabajan en el Instituto de Psicología, Educación y Desarrollo Humano donde en su gran mayoría desarrollan prácticas integradoras de los procesos de enseñanza y creación de conocimiento con experiencias de extensión universitaria orientando su labor a una reconfiguración de todos los componentes del acto educativo. //

La alfabetización informativa tecnológica: estrategia fundamental en las bibliotecas del Siglo XXI

OpenAIRE

Palma Peña, Juan Miguel

2009-01-01

La sociedad del conocimiento y las bibliotecas del siglo XXI son espacios de interacción digital yvirtual necesarios. La biblioteca, para estar en concordancia con los adelantos tecnológicos que sepresentan a diario, los ha aplicado en sus actividades y funciones sustantivas. Sin embargo, estosdesarrollos se presentan a una gran velocidad, lo cual produce que la sociedad conozca poco respectoa la forma de cómo aprovechar al máximo estos recursos tecnológicos. Ante esto, la biblioteca deberáse...

Hostile outbursts in the XXI century Argentina. Persistence and recurrence of a disruptive form Los estallidos de hostilidad en la Argentina del siglo XXI. Persistencia y recurrencia de una forma disruptiva

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Julián REBÓN

2012-10-01

Full Text Available Direct forms of confrontation represent one of the main features of the social conflict in Argentina in the xxI century. Particularly, the hostile outbursts have constituted a dynamic that is present throughout the decade. The public system of railway transportation of passengers in the metropolitan area of Buenos Aires was one of the social spaces with the most recurrence of this kind of collective action. Between 2003 and 2009 a cycle of hostile outbursts took place, in which groups of passengers attacked goods and employees of the concessionary enterprise –and in some cases security forces involved– showing its social dissatisfaction with the quality of service. In this paper, we expose a hypothetical frame in order to explain these events while promoting a conceptual debate about this kind of action.Las formas directas de confrontación representan una de las características salientes de la conflictividad social en la Argentina del siglo XXI. En particular, los estallidos de hostilidad constituyen una dinámica presente a lo largo de toda la década. El transporte ferroviario de pasajeros del área metropolitana de Buenos Aires se erigió en uno de los espacios sociales con gran recurrencia de este tipo de acciones. Entre 2003 y 2009 se desarrollaron una serie de estallidos en los cuales grupos de pasajeros atacaban bienes y trabajadores de las empresas prestatarias –y en ocasiones a las fuerzas de seguridad que intervenían– con el objeto de expresar su disconformidad con la forma de prestación del servicio. En este artículo exponemos los resultados de nuestra investigación sobre dichos episodios, presentando un marco hipotético-conceptual que da cuenta de los mismos y promueve en simultáneo un debate conceptual sobre esta forma de acción directa.

Proceedings of 8. international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century'

International Nuclear Information System (INIS)

Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

2008-05-01

The proceedings of the eighth international scientific conference 'Sakharov readings 2008: Ecological problems of XXI century', which was held in the International A. Sakharov environmental university, contents materials on topics: socio-ecological problems in the light of ideas of academic A. Sakharov; medical ecology; bioecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology; ecological management; ecological monitoring; ecological education, education for sustainable development; ecological ethics in bioethics education system; problems and prospects of renewable energetics development in Belarus. The proceedings are intended for specialists in field of ecology and related sciences, teachers, students and post-graduate students. (authors)

La encrucijada de Manuela Sáenz en el imaginario cultural latinoamericano del siglo XXI

OpenAIRE

María F. Lander

2011-01-01

Este trabajo analiza tres textos creativos de distintos géneros que recrean en el siglo xxi la imagen de Manuela Sáenz, la famosa amante del Libertador suramericano Simón Bolívar. Se arguye que en la ópera, la novela y la película examinadas se invita al lector/espectador a repensar el papel que jugó la heroína quiteña en la política grancolombiana de su época. Este trabajo discute cómo el esfuerzo por actualizar la imagen de Manuela Sáenz implica negociar la creación de una nueva imagen que ...

O ensino privado em Pelotas na propaganda impressa: séculos XIX, XX, XXI

OpenAIRE

NEVES, Helena de Araujo

2012-01-01

Esta tese situa-se no âmbito da História da Educação, vinculada à linha de Filosofia e História da Educação do Programa de Pós-Graduação em Educação da universidade Federal de Pelotas. Seu objetivo foi pesquisar a trajetória do ensino privado em Pelotas, município localizado ao sul do Rio Grande do Sul, no período compreendido entre o final do século XIX e o principio do século XXI. Para isso, utilizou como principal fonte documental propagandas impressas das escolas privadas de ensino primár...

La alfabetización informativa tecnológica: estrategia fundamental en las bibliotecas del Siglo XXI

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Juan Miguel Palma Peña

2009-01-01

Full Text Available La sociedad del conocimiento y las bibliotecas del siglo XXI son espacios de interacción digital yvirtual necesarios. La biblioteca, para estar en concordancia con los adelantos tecnológicos que sepresentan a diario, los ha aplicado en sus actividades y funciones sustantivas. Sin embargo, estosdesarrollos se presentan a una gran velocidad, lo cual produce que la sociedad conozca poco respectoa la forma de cómo aprovechar al máximo estos recursos tecnológicos. Ante esto, la biblioteca deberáser la institución que se postule como intermediaria entre el conocimiento, los avances tecnológicos yla sociedad. Debido a que será la que proporcione las herramientas y las estrategias necesarias paraque la comunidad de usuarios sea autosuficiente, utilicen al máximo los recursos tecnológicos quetiene a su servicio, y así, satisfagan sus demandas informativas. El objetivo del presente trabajo esreflexionar acerca del por qué la alfabetización informativa tecnológica (AIT como parte de laalfabetización informativa (AI se debe establecer como estrategia esencial de las bibliotecas del sigloXXI. En primer plano, se analiza el estado actual de las bibliotecas. La segunda parte, aborda laincursión de las TIC’s en los servicios bibliotecarios y sus próximas tendencias. Finalmente, seanaliza la AIT derivada de la AI, así como su aplicación y desarrollo en las bibliotecas contemporáneasy futuras.

Public Administration Theoretical Aspects Disputes in Legal Science of the Second Half of XX – Early XXI Centuries

OpenAIRE

Ol'ga D. Karnaukh

2013-01-01

The article is focused on comparative aspect of different approaches to the “public administration” notion in the legal science of the second half of the XX – early XXI centuries. The author came to a conclusion that the study of many pre-revolutionary, Soviet and modern scientists’ views of the problem of public administration notion definition, its structure, functional orientation and territory administration features allows to conclude that different approaches to its understanding, devel...

La producción de enfermedad en el paradigma de la salud del siglo XXI

OpenAIRE

Rodríguez Zoya, Paula G.

2013-01-01

Este trabajo pone en relación el imperativo de cuidado del cuerpo y la salud paraalcanzar una salud perfecta y el fenómeno de expansión de la medicalización a travésde la invención de enfermedades. La tesis central sostiene que la imbricación de ambosfenómenos constituye los fundamentos del paradigma sanitario que se arraiga en lassociedades occidentales del siglo XXI. La investigación problematiza la articulaciónde dichos fenómenos a partir de la circulación social de significaciones en torn...

Las mujeres indígenas venezolanas y sus logros en los albores del Siglo XXI

OpenAIRE

Rincón-Soto, Lucía del Carmen

2014-01-01

El artículo ofrece un recuento del paradigmático proceso de empoderamiento de las indígenas venezolanas y un balance de cómo su pensamiento se ha articulado para fortalecer su identidad. Se realiza un breve recorrido de la situación de las mujeres desde el proceso de colonización hasta los albores del siglo XXI. Si bien las mujeres indígenas latinoamericanas, en general, y las venezolanas, en particular, tienen muchos desafíos, no se puede dejar de destacar su valiosa participación en los esc...

O capitalismo no início do século XXI: consumo e desfrute como imperativos morais

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Pedro Robertt

Full Text Available Resumo Nesta resenha, os autores apresentam e discutem um dos livros mais recentes de Adrián Scribano, que descrevem como uma obra complexa, densa, criativa e crítica. Um esforço para retratar o capitalismo, no Sul Global, no início do século XXI, como um imperativo moral, a obra reflete anos de reflexão teórica e pesquisa empírica e perpassa diversos temas das sociedades capitalistas contemporâneas.

Changes in beverage consumption among adolescents from public schools in the first decade of the century XXI.

Science.gov (United States)

Monteiro, Luana Silva; Vasconcelos, Thaís Meirelles de; Veiga, Gloria Valéria da; Pereira, Rosângela Alves

2016-01-01

To evaluate the changes in beverage consumption among adolescents between 2003 and 2008. Two school-based cross-sectional studies were carried out with public school students (12 to 19 years-old) from Niterói, Rio de Janeiro, Brazil. Data from three food records were used to estimate daily, weekdays and weekend average consumption (volume and percent contribution for total daily energy intake) of milk and milk-based beverages, sugar sweetened beverages, fresh squeezed fruit juices, caffeinated and alcoholic beverages. Beverage consumption age-adjusted means for weekdays and weekends were compared using linear regression (Generalized Linear Models - GLM). A total of 433 adolescents were examined in 2003, and 510 in 2008. The prevalence of overweight was 17% in 2003 and 22% in 2008 (p > 0.05). Milk was the most consumed beverage, being reported by 89% of adolescents, followed by sodas (75%). In general, in the five-year period, there was an increase in the prevalence of consumption of alcoholic drinks, guarana syrup refreshment, and processed fruit drinks, especially on weekdays. The soft drink was the largest contributor to the total energy consumption, corresponding on average to 4% of daily energy intake. The main changes in the beverage consumption among adolescents from Niterói, in the first decade of the XXI century, were the tendency to reduce the consumption of milk and the increase in the consumption of processed and alcoholic beverages.

A rare case of lateral ovotesticular disorder with Klinefelter syndrome mosaicism 46, XX/47, XXY: An unusual presentation.

Science.gov (United States)

Talreja, Shyam M; Banerjee, Indraneel; Yadav, Sher Singh; Tomar, Vinay

2015-01-01

Ovotesticular disorder of sex development (OT-DSD) is a rare disorder of sexual differentiation characterized by the presence of both ovarian and testicular tissues in the same individual. It's incidence ranges from 3% to 10% of all disorder of DSD's, and the most common presentation is 46, XX followed by 46, XX/46, XY mosaicism and 46, XY. Klinefelter syndrome (KS) mosaicism 46, XX/47, XXY is extremely rare, and its association with the ovotesticular disorder is even rarer. We report an unusual case of 16-year-old with male habitus who presented with complains of cyclic hematuria. On examination, he had bilateral gynecomastia, unilateral left cryptorchidism, absent facial hair, sparse axillary hair growth, and pubic hair distribution of feminine type. The right testis was of normal size located normally in hemiscrotum and was confirmed by radio imaging. Ultrasonography and magnetic resonance imaging revealed a cystic area behind posterior half of urinary bladder. Chromosomal analysis revealed 46, XX/47, XXY mosaicism of female karyotype and KS. Histopathological report of this left side excised specimen confirmed the structures to be ovary, uterus, and fallopian tube, thus confirming our diagnosis of the lateral ovotesticular disorder. Meticulous workup combined interdisciplinary approach will lead to early diagnosis and resolve timely sex reassignment issues and also prevent consequences arising due to gonadal insufficiency.

Globalizacion, seguridad y crisis. El papel de las fuerzas armadas en el siglo XXI

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Federico Aznar Fernández-Montesinos

2015-06-01

Full Text Available El siglo XXI es el siglo de la interconexión y la complejidad. Todo se encuentra interrelacionado, lo que ha obligado a incluir la Defensa en el marco de la Seguridad con el propósito de dar respuestas a los retos que plantea y que ya no son solo militares sino de toda índole, incluidas crisis y catástrofes. Las fuerzas Armadas pueden contribuir con gran eficacia a la hora de atender tales retos. La tendencia no es ya al conflicto entre naciones, sino a la defensa de la Seguridad Nacional e Internacional, lo que genera un enorme cambio en los medios, preparación y doctrina.

Phases and Actions of the Evolution of the Concept of Quality in Canada and Australia – A Theoretical Modelling of the Development of Knowledge in Business Performance in the XXI Century - The Approach to Excellence

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Cristina Raluca Popescu

2015-05-01

Full Text Available In the paper “Phases and Actions of the Evolution of the Concept of Quality in Canada and Australia – A Theoretical Modelling of the Development of Knowledge in Business Performance in the XXI Century - The Approach to Excellence” the authors present the basic features of the phases and actions of the evolution of the concept of quality in Canada and Australia, as a theoretical modelling of the development of knowledge in business performance in the XXI century in order to improve the organizational processes so that excellence can be achieved.

Ethical and philosophical problems of moral education in the pedagogical doctrines of the second half of the XX-beginning of the XXI centuries

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Kondrat'eva S.B.

2018-04-01

Full Text Available the article considers the problem of spiritually-moral education in the concepts of the teachers-innovators at the turn of XX-XXI centuries. The author focuses on the process of teacher training based on professional ethics of the teacher, focuses on the moral demands of performing professional teaching tasks.

Sakharov readings 2009: Environmental problems of the XXI century. Proceedings of the 9 scientific conference

International Nuclear Information System (INIS)

Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

2009-05-01

Proceeding includes materials of reports of 9-ts international scientific conference 'Sakharov readings 2009: Environmental problems of XXI century', which took place 21-22 of May 2009 in the International Sakharov Environmental University. Represented materials were integrated to next parts: social-ecological and ecology-ethical problems; medical ecology; bio ecology; bio monitoring, bio indication and bioremediation; radioecology and radiation security; ecological informational systems and technologies; ecological monitoring, management and audit; resumption sources of energy and energy-saving technologies; problems of ecological education. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

The Reasons for Activisation of Separatism Movements in Xinjiang Later in XX and XXI Centuries

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Анна Сергеевна Мавлонова

2014-12-01

Full Text Available The article includes analysis of the main reasons for activization of separatism movements in Xinjiang later in XX and earlier in XXI centuries. The author comes into conclusion that the following reasons caused the process of active politicization of ethnicity in Central Asian region and wide territories of Xinjiang: changes in the territory of former Soviet Union countries; economic recession in former Soviet Union countries which led to activization of radical movements; economic reforms in China leading to liberalization of social and political spheres; influence of external global factors. The mentioned changes resulted in serious activization of separatist tendencies which was not the case in earlier periods.

PARADIGMAS CONTEMPORÂNEOS: O NAVIO NEGREIRO DO SÉCULO XXI / CONTEMPORARY PARADIGMS: THE SLAVE SHIP OF THE XXI CENTURY

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Denis Henrique Schmeisch

2015-04-01

Full Text Available Human trafficking and slavery of human labor are not a recent phenomenon in the context of world history. The Trafficking of human lives is part of a logic of domination and bargaining, in which the life of an individual is exchanged for its freedom, or reducing a person to the condition of a thing that can be appropriated by others. Not limited only to trafficking, the “thingfication” of the other, which also occurs in the analogue slave labor which produces illness, causing funeral songs and it becomes the faces of these wretched, gloomy figures against villainy in the world. As speech development method was used Navio Negreiro of Castro Alves, as a basis for criticizing the perpetuation of man’s enslavement practice. It is observed that at the time the poet has denounced the hideous and vile practice, and we find ourselves today in the XXI century, living with the banalization of life. In the same way in that century the poet urged the intellectuals and the population to embrace the abolition of slavery, we find ourselves today in such situation that require a new abolitionist consciousness. Disposing the discussion at the national level, on the history and construction of the Brazilian legal system, it is worth to observe the necessity to create a new abolitionist movement. And in this sense, we ask as the poet did: “Why do you run away like that (...? Why to run away (...?”.

A literatura juvenil brasileira no início do século XXI: autores, obras e tendências

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Gabriela Luft

2010-01-01

Full Text Available The present research offers a study on Brazilian youth literature published in the first decade of this century, by analyzing the books awarded by National Foundation of Children’s and Youth Books, and Brazilian Book Chamber, which awards the prize Jabuti. Based on systematized data by Marisa Lajolo and Regina Ziberman, it shows a brief overview of Brazilian children’s and youth literature from 1890 to 1980, the context of which allows tracing the paths and trends of the genre over time. After that, based on studies developed by Teresa Colomer, this study discusses the main features of the current juvenile narratives awarded from 2001 to 2009. Through reading, observation, analysis and comparison of works that make up the corpus, this research aims to show the characteristics of the Brazilian youth literature produced in the first decade of the XXI century, in order to answer what are the main trends of the genre and what is its position in the national scenery. We can observe a number of new authors who have turned up, the diversity of themes worked, and the increase of the narrative complexity.

Alemania siglo XXI: un balance

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Martha Lucía Quiroga Riviere

2009-11-01

Full Text Available Veinte años han pasado desde que se dieron los sucesos en la República Democrática Alemana (RDA que llevarían, en noviembre de 1989, a la caída del muro de Berlín y a la reunificación de Alemania el 3 de octubre de 1990. El proceso de unificación alemana dio pie en sus comienzos a una optimista visión que, sin embargo, con el paso del tiempo ha cambiado de tal forma que hoy se habla del ‘messogiorno alemán’ para designar a la zona oriental comparándola con la zona deprimida del sur de Italia. Pero la Alemania unificada en el contexto internacional supuso también cambios para la zona occidental que, entre otros, se han traducido en la crisis del sector industrial tradicional y en el desempleo estructural. Así, a la difícil constelación de la situación interna de la Alemania reunificada, se ha adicionado la realidad internacional con una decreciente producción industrial como fenómeno global en todas las viejas naciones industriales y con un proceso de desregularización que significó en Alemania oriental la ‘privatización de toda la sociedad’. En Alemania se han llevado y se están llevando cambios sociales profundos, que no tienen comparación con ningún otro país de las potencias occidentales ni, en el caso de la ex RDA con ningún país del este. Evaluar el proceso de unificación alemana, primera potencia europea y motor del proceso de integración en ese continente, se hace imperante. El presente artículo intenta hacer un diagnóstico parcial de la nueva realidad en la Alemania unificadaa comienzos del siglo XXI.

Studies of malformation syndromes in man XXXX: multiple congenital anomalies/mental retardation syndrome or variant familial developmental pattern; differential diagnosis and description of the McDonough syndrome (with XXY son from XY/XXY father).

Science.gov (United States)

Neuhäuser, G; Opitz, J M

1975-11-13

The McDonough syndrome is a "new" MCA/MR syndrome which was found in 3 children (1 girl, 2 boys) of non-consanguineous parents. The affected children were mentally retarded (IQ 47--67) and had congenital heart defect, sternal deformity, kyphosis and craniofacila anomalies (anteverted auricles, upward slanted palpebral fissures, squint); cryptorchidism was present in the 2 boys. In addition a possible VFDP is postulated as the explanation for similar features in affected and unaffected siblings and parents. However, the McDonough syndrome may be an autosomal recessive trait with minor manifestations in heterozygotes. The klinefelter syndrome in one affected boy and a 46,XY/47,XXY chromosome constitution in the father was a coincidental finding.

LAS MUSAS DE PRINCIPIO DEL SIGLO XXI: INDICIOS DEL CAMBIO EDUCATIVO (MUSEAL MUSES OF THE XXI CENTURY: EVIDENCE OF EDUCATIONAL CHANGE IN MUSEUMS

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Rodríguez Sánchez, Keilyn

2012-05-01

Full Text Available Resumen: Este ensayo expone que la audiencia es el punto de partida para identificar la mejor manera de diseñar experiencias sensoriales de entretenimiento o educación, es el objeto de la investigación museal, sus gustos e intereses se constituye en el eje de los estudios y de las campañas de mercado. Todo el quehacer museal se orienta a satisfacer los gustos y necesidades del sujeto-visitante para así atraerlo al Museo. Este nuevo enfoque museológico tiene el riesgo de olvidar el objeto en el proceso educativo y centrarse en el sujeto. Se propone la promoción del diálogo sujeto-objeto para que la función educativa del Museo contribuya a la conformación de una sociedad con conciencia histórica-cultural clara. Se concluye que, en las primeras décadas del Siglo XXI los diferentes enfoques de la sociomuselogía, la museografía interactiva, la museología crítica y dialógica, así como los ejes de cambio generados por las innovaciones tecnológicas, las dinámicas de consumo y las comunidades de aprendizaje, apuntan a que la audiencia es el centro de atención, y no el objeto y la forma de ser expuesto como lo fue en el Siglo XX.Abstract: This paper presents an allegory between the muses of Greek mythology as the inspiration of memory, knowledge and the arts and the role of muses in inspiring current museum's tasks in the twenty-first century on the worldwide stage, in order to systematize the emerging museological XXI century currents and the central axes of change that are developing in this period. It concludes that in this century different museological approaches to sociomuseology, interactive museography and critical dialogical museology as well as the axes of change generated by technological innovations, the dynamics of consumption and learning communities, suggest that the individual visitor is the main target, and not the object and how it is exhibited (as in the last century. Thus, the individual visitor is the starting

Sakharov readings 2010: Environmental problems of the XXI century. Proceedings of the 10 international scientific conference. Part 1

International Nuclear Information System (INIS)

Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

2010-05-01

Proceeding includes materials of reports of 10-ts international scientific conference. Part 1e 'Sakharov readings 2010: Environmental problems of XXI century', which took place 20-21 of May 2010 in the International Sakharov Environmental University. The first part of the proceedings continues abstracts about social-ecological and ecology-ethical problems, medical ecology, biological ecology, biomonitoring, bioindication and bioremediation. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

Nueva faceta del capitalismo del siglo XXI en América Latina

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Samuel Lichtensztejn

2016-09-01

Full Text Available Desde fin del siglo XX el sistema económico, político y social a nivel global ha entrado en un proceso de cambios, que en varios países de América Latina, parecía podría haber sido de oportunidades en varios ámbitos, sin embargo no han tenido los beneficios esperados. Si bien varios gobiernos de la región emergieron con un discurso nacional y popular con aspiraciones de crecimiento económico con distribución de la riqueza, aspiración democrática y bienestar social, poco a poco se fue desvaneciendo en gran medida por una serie de políticas públicas en el ámbito económico, político y social. Lo que está caracterizando el capitalismo del siglo XXI en América Latina.

EAS primary particle parameter estimation with the complex Pamir-XXI detector array

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Galkin V.I.

2017-01-01

Full Text Available Some new developments in EAS methods made in the framework of the Pamir-XXI project are presented. First, primary energy and direction definition accuracies by a network of fast scintillators are considered, optimum network cell size is defined for 10 PeV showers. Second, the same accuracies for a network of fast optical (Cherenkov detectors are considered for 30 TeV–10 PeV showers. Third, the possibilities of separation of EAS initiated by protons, nitrogen and iron nuclei of 1 and 10 PeV energies using a wide-angle Cherenkov telescope are discussed. Finally, the results of the extraction of 30–50 TeV gamma showers from the proton shower background with the same telescope are presented. Presumably, our developments can help in the study of PCR mass composition and ultra high energy gamma ray astronomy in other projects.

Structural and Functional Neuroimaging in Klinefelter (47,XXY) Syndrome: A Review of the Literature and Preliminary Results from a Functional Magnetic Resonance Imaging Study of Language

Science.gov (United States)

Steinman, Kyle; Ross, Judith; Lai, Song; Reiss, Allan; Hoeft, Fumiko

2009-01-01

Klinefelter (47,XXY) syndrome (KS), the most common form of sex-chromosomal aneuploidy, is characterized by physical, endocrinologic, and reproductive abnormalities. Individuals with KS also exhibit a cognitive/behavioral phenotype characterized by language and language-based learning disabilities and executive and attentional dysfunction in the…

Sakharov readings 2011: environmental problems of the XXI century. Proceedings of 11 international scientific conference

International Nuclear Information System (INIS)

Kundas, S.P.; Poznyak, S.S.

2011-05-01

The proceeding includes materials of reports of 11-th international scientific conference 'Sakharov readings 2011: Environmental problems of XXI century', which took place 19-20 of May 2011 in the International A. Sakharov Environmental University. The proceeding continues abstracts about social-ecological, ecology-ethical and pedagogical problems in light of the Sakharov' ideas; medical ecology; biological ecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology and medicine; ecological monitoring, management and audit; renewable energy sources and energy efficiency; climate change and sustainable development; regional ecological problems. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

Sakharov readings 2010: Environmental problems of the XXI century. Proceedings of the 10 international scientific conference. Part 2

International Nuclear Information System (INIS)

Kundas, S.P.; Mel'nov, S.B.; Poznyak, S.S.

2010-05-01

Proceeding includes materials of reports of 10-ts international scientific conference 'Sakharov readings 2010: Environmental problems of XXI century', which took place 20-21 of May 2010 in the International Sakharov Environmental University. The second part of the proceedings continues abstracts about radioecology and radiation security; ecological informational systems and technologies; ecological monitoring, management and audit; resumption sources of energy and energy-saving technologies; problems of ecological education. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

Marcha de absorção dos micronutrientes para mudas de goiabeiras cultivares Paluma e Século XXI

OpenAIRE

Franco,Claudenir Facincani; Prado,Renato de Mello; Braghirolli,Luiz Fernando; Rozane,Danilo Eduardo

2008-01-01

O conhecimento da marcha de absorção dos micronutrientes em mudas de goiabeira garante melhor eficiência da adubação. O objetivo do trabalho foi determinar a marcha de absorção de micronutrientes em mudas de duas cultivares de goiabeira. O delineamento experimental utilizado foi em parcelas subdivididas com três repetições. Assim, foram utilizadas como tratamentos principais duas cultivares de goiabeira (Paluma e Século XXI) obtidas por estacas herbáceas e como subparcelas, sete coletas de pl...

Sakharov readings 2013: environmental problems of the XXI century. Proceedings of the 13 international scientific conference

International Nuclear Information System (INIS)

Kundas, S.P.; Poznyak, S.S.; Lysukho, N.A.

2013-05-01

The proceeding includes materials of reports of 13-th international scientific conference 'Sakharov readings 2013: Environmental problems of XXI century', which took place 16-17 of May 2013 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about social-ecological and ecology-ethical problems of modern times; education for sustainable development; medical ecology; biological ecology; radiobiology; radioecology and radiation protection; information systems and technologies in ecology and medicine; regional ecological problems; ecological monitoring and management; renewable energy sources and energy efficiency. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

Effect of exercise order on the number of repeats and training volume in the tri-set training method

Directory of Open Access Journals (Sweden)

Waynne Ferreira de Faria

2016-05-01

Full Text Available DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p187   Although the tri-set system is widely adopted by athletes and experienced weight training practitioners aimed at optimizing the metabolic overload, there are still few works in literature on the effect of exercise order manipulation on this training system. Therefore, this work was aimed at investigating the effect of exercise order manipulation on the number of repeats and training volume using the tri-set system for lower limbs. This is a randomized cross-over design study. The experimental group consisted of 14 healthy men (23.53 ± 5.40 years; 24.51 ± 2.96 kg/m2. Subjects were submitted to two experimental sessions at different exercise order for lower limbs: Sequence A: squat on guided bar, leg press 45° and bilateral leg extension; sequence B: bilateral leg extension, leg press 45° and squat on guided bar. Three sets to volitional fatigue in all exercises were performed, with intensity of 75% 1RM. Superiority for sequence B in the total number of repeats (70.14 ± 13 vs 60.93 ± 7.94 repeats, p = 0.004 and total training volume (9129.64 ± 2830.05 vs 8238.29 ± 2354.20 kg, p = 0.014 was observed. Based on the above, the performance of single-joint exercises before multi-joint exercises in the tri-set system adopted for lower limbs induced higher number of repeats and total training volume.

Violencia sin guerra: La sociedad vasca y el terrorismo de eta en el umbral del siglo XXI

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Santiago de Pablo

2003-10-01

Full Text Available En este artículo analizamos la evolución de la organización terrorista ETA, desde su nacimiento en 1959 hasta nuestros días. En el país Vasco no hay una guerra sino un enfrentamiento entre una minoría, cada vez más reducida, y una vasca plural, pero mayoritariamente contraria al terrorismo. De ahí que, en este inicio del siglo XXI, ETA se haya convertido en un movimiento cerrado en sí mismo y anclado en el tiempo, que se resiste a aceptar su fracaso.

Las TIC y la educación social en el siglo XXI

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Begoña Esther Sampedro Requena

2016-01-01

Full Text Available Este artículo recoge una serie de reflexiones sobre el papel que juega los profesionales de la educación social en las nuevas realidades sociales, donde subyace la necesidad de una formación y capacitación de los recursos tecnológicos como elementos que favorecen la integración de los sujetos en la sociedad. Como resultado de esta premisa se presenta un breve análisis teórico de la educación social en el siglo XXI, deteniéndonos en dos elementos esenciales de la misma, la titulación universitaria en la que se desarrolla y las características básicas de la ocupación profesional que la desempeñan. Asimismo, se relata los elementos que determinan las sociedades actuales, aproximándonos a las tecnologías como componente básico de estas nuevas realidades.

POSSIBLE GLOBAL AND REGIONAL EVOLUTIONS OF GEOPOLITICS IN THE XXI CENTURY (II

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Constantin MINCU

2013-12-01

Full Text Available In the paper, the author briefly presents possible global and regional evolutions of geopolitics in the XXI century grounded on the analysis of some regards expressed by foreign and Romanian specialists in many papers appeared in the late years on this subject. A special attention is granted to the book published by STRATFOR founder George FRIEDMAN “The Next 100 Years: A Forecast for the 21st Century”, edited in Romania to the Litera Publishing House in 2012. The evolutions forecasted on medium and long term will practically damage all Earth’s population and its regions, with dramatic consequences on economic, financial, social, military and environmental plan. The most of the geopolitics’ specialists appreciate with arguments and grounded there will be following intricate decades with riots and wars with spectacular up side downs of situations and major reconfigurations of areas of influence of major powers with important influences also over Romania.

Las relaciones entre Globalización, Medio Ambiente y Salud: Retos para la enfermería en el siglo XXI The globalization, environment and health relationship: Challenges for nursing in the XXI Century

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Liliana Angel Vargas

2010-09-01

Full Text Available Este artículo surge de la necesidad de discutir los diversos impactos generados por el proceso de globalización en la medida que interfiere en las relaciones políticas, económicas, sociales, culturales, que se expresan en degradación ambiental y constituyen fuertes amenazas para la salud de individuos y comunidades a nivel local y global. Se propone estimular la reflexión a partir del análisis interdisciplinar del conocimiento producido sobre macro categorías como globalización, medio ambiente y salud y su articulación con el ejercicio profesional del enfermero. Metodológicamente se trata de una sistematización a partir de fuentes bibliográficas primarias y secundarias disponibles inclusive en bases indexadas. Podemos concluir que el ejercicio profesional de enfermería en el siglo XXI exige enfrentar el desafío de (redimensionar el cuidado, que debe ser entendido no como un acto y si como una actitud cuidadora y un compromiso con la defensa de la vida de ésta y las futuras generaciones.This article is a result of the necessity of discussing the many impacts that the globalization process, since it affects way the political, economical and social relations, that are expressed in the environmental degradation and becomes a strong threat to the health of individuals and communities in the local and global levels. Intends to stimulate a reflection from the interdisciplinary analysis of the developed knowledge about categories like globalization, environment and health, and their articulation with the professional nursing practice. In a methodological point of view, it is systematization from primary and secondary bibliographic sources including indexed ones. We conclude that the professional nursing practice in the XXI century demands confronting the challenge of resize the concept of nursing care, must be understood not as an act but as a caring actitude and a commitment to the protection of life of this and future's generations.

An Extra X or Y Chromosome: Contrasting the Cognitive and Motor Phenotypes in Childhood in Boys with 47,XYY Syndrome or 47,XXY Klinefelter Syndrome

Science.gov (United States)

Ross, Judith L.; Zeger, Martha P. D.; Kushner, Harvey; Zinn, Andrew R.; Roeltgen, David P.

2009-01-01

Objective: The goal of this study was to contrast the cognitive phenotypes in boys with 47,XYY (XYY) karyotype and boys with 47,XXY karyotype [Klinefelter syndrome, (KS)], who share an extra copy of the X-Y pseudoautosomal region but differ in their dosage of strictly sex-linked genes. Methods: Neuropsychological evaluation of general cognitive…

Blending Octane Number of Ethanol on a Volume and Molar Basis in SI and HCCI Combustion Modes

KAUST Repository

Waqas, Muhammad Umer; Morganti, Kai; Masurier, Jean-Baptiste; Johansson, Bengt

2017-01-01

The blending behavior of ethanol in five different hydrocarbon base fuels with octane numbers of approximately 70 and 84 was examined under Spark-Ignited (SI) and Homogeneous Charge Compression Ignited (HCCI) operating conditions. The Blending octane number (BON) was used to characterize the blending behavior on both a volume and molar basis. Previous studies have shown that the blending behavior of ethanol generally follows several well-established rules. In particular, non-linear blending effects are generally observed on a volume basis (i.e. BON > RON or MON of pure ethanol; 108 and 89, respectively), while linear blending effects are generally observed on a molar basis (i.e. BON = RON or MON of pure ethanol). This work firstly demonstrates that the non-linear volumetric blending effects traditionally observed under SI operating conditions are also observed under HCCI operating conditions. In keeping with previous studies, the degree of this non-linearity is shown to be a function of the base fuel composition and octane number. By contrast, the molar blending approach is shown to behave differently depending on the chosen combustion mode, with some non-linearity observed under HCCI operating conditions (i.e. BON RON or MON of pure ethanol). This suggests that the well-established blending rules for SI operating conditions may not always be relevant to other combustion modes that operate with globally lean or diluted air-fuel mixtures. This has implications for the design of future fuel specifications.

Blending Octane Number of Ethanol on a Volume and Molar Basis in SI and HCCI Combustion Modes

KAUST Repository

Waqas, Muhammad Umer

2017-10-08

The blending behavior of ethanol in five different hydrocarbon base fuels with octane numbers of approximately 70 and 84 was examined under Spark-Ignited (SI) and Homogeneous Charge Compression Ignited (HCCI) operating conditions. The Blending octane number (BON) was used to characterize the blending behavior on both a volume and molar basis. Previous studies have shown that the blending behavior of ethanol generally follows several well-established rules. In particular, non-linear blending effects are generally observed on a volume basis (i.e. BON > RON or MON of pure ethanol; 108 and 89, respectively), while linear blending effects are generally observed on a molar basis (i.e. BON = RON or MON of pure ethanol). This work firstly demonstrates that the non-linear volumetric blending effects traditionally observed under SI operating conditions are also observed under HCCI operating conditions. In keeping with previous studies, the degree of this non-linearity is shown to be a function of the base fuel composition and octane number. By contrast, the molar blending approach is shown to behave differently depending on the chosen combustion mode, with some non-linearity observed under HCCI operating conditions (i.e. BON RON or MON of pure ethanol). This suggests that the well-established blending rules for SI operating conditions may not always be relevant to other combustion modes that operate with globally lean or diluted air-fuel mixtures. This has implications for the design of future fuel specifications.

Sakharov readings 2012: environmental problems of the XXI century. Proceedings of 12 international scientific conference

International Nuclear Information System (INIS)

Kundas, S.P.; Poznyak, S.S.

2012-05-01

The proceeding includes materials of reports of 12-th international scientific conference 'Sakharov readings 2012: Environmental problems of XXI century', which took place 17-18 of May 2012 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about social-ecological, ecology-ethical and pedagogical problems in light of the Sakharov' ideas; medical ecology; biological ecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology and medicine; ecological monitoring, management and audit; renewable energy sources and energy efficiency; climate change and sustainable development; regional ecological problems. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges.

Increased basal and pulsatile secretion of FSH and LH in young men with 47,XXY or 46,XX karyotypes

DEFF Research Database (Denmark)

Aksglaede, L.; Jensen, Rikke Bodin Beck; Carlsen, E.

2008-01-01

testicular failure due to supernumerary X chromosomes. DESIGN: Cross-sectional study. METHODS: In this study, 7 untreated patients with primary gonadal insufficiency due to SRY-positive 46,XX (n=4) and 46,XXY karyotypes (n=3) aged 18.8 years and 25 age-matched healthy controls participated. Reproductive...... basal, pulsatile, and total LH and FSH secretion were associated with significantly more LH peaks per 24 h in comparison with healthy controls. Thus, our data indicate that in patients with Klinefelter syndrome and XX male karyotypes the entire hypothalamic-pituitary-gonadal axis has undergone...

Sakharov readings 2015: environmental problems of the XXI century. Proceedings of the 15 international scientific conference

International Nuclear Information System (INIS)

Poznyak, S.S.; Lysukho, N.A.

2015-05-01

The proceeding includes materials of reports of 15-th international scientific conference 'Sakharov readings 2015: Environmental problems of XXI century', which took place 21-22 of May 2015 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about philosophical, social-ecological nd bioethical and problems of modernity; education for sustainable development; medical ecology; biological ecology; radiobiology; radioecology and radiation protection; information systems and technologies in ecology and medicine; regional environmental problems; ecological monitoring and management; renewable energy sources and energy efficiency. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

Panorama de las Academias frente al Siglo XXI

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Zoilo Cuellar Montoya

1996-12-01

Full Text Available

Secretario General
Academia Nacional de Medicina de Colombia.

Como representante de 106 años ininterrumpidos de servicio a la medicina, de dedicación incondicional a los pacientes, quiero ser portador de un mensaje de unidad y de fraternidad para el cuerpo médico de Colombia y de la América Latina, condiciones que en la Academia Nacional de Medicina de Colombia consideramos imperativas para adecuar nuestras instituciones a los caleidoscópicos cambios del ejercicio de nuestra profesión, en los albores del siglo XXI, del tercer milenio.

Quiero transmitirles las experiencias y las conclusiones emanadas, tanto de los diferentes foros que hemos tenido en Santa Fe de Bogotá como del 1 Encuentro Nacional de Academias de Medicina de Colombia, realizado en esta ciudad en marzo pasado. Cuando se inauguró dicho Encuentro nuestro Presidente, el Académico Gilberto Rueda Pérez, anotaba “La ciencia y la tecnología modernas reclaman para el futuro, más que nunca, la presencia directiva de la Academia, pero no de una Academia quieta, que descansa complacida en pretéritas épocas de oro, improductiva, órgano asesor a quien nadie consulta, sino de una Academia viva, dinámica, agresiva, capaz de aportar a través de su gran acerbo de inteligencia, de conocimientos y de experiencia y de su enorme poder de liderazgo, todo aquello que el cuerpo médico nacional espera de ella para el siglo XXI “.

Años atrás, cuando se perfilaba el nombramiento de un nuevo Ministro de Salud, la Academia dirigió una carta al Presidente de la República que fue desatendida totalmente. En dicha carta la Academia le solicitaba que escogiera a un médico para que se encargara de la cartera de salud, por años en manos de administradores y economistas, con detrimento de los programas nacionales de salud y de las campañas contra los principales flagelos nosológicos de nuestra patria. La respuesta fue el

Increased number of sex chromosomes affects height in a nonlinear fashion: a study of 305 patients with sex chromosome aneuploidy

DEFF Research Database (Denmark)

Ottesen, Anne-Marie; Aksglaede, Lise; Garn, Inger

2010-01-01

Tall stature and eunuchoid body proportions characterize patients with 47,XXY Klinefelter syndrome, whereas patients with 45,X Turner syndrome are characterized by impaired growth. Growth is relatively well characterized in these two syndromes, while few studies describe the growth of patients wi......,XXXX (n = 13), and -1.0 (-3.5 to -0.8) in 49,XXXXX (n = 3). Height increased with an increasing number of extra X or Y chromosomes, except in males with five, and in females with four or five sex chromosomes, consistent with a nonlinear effect on height....

XIX – XXI amžiaus ideologijos kritika: K. Marxas, F. Engelsas, S. Žižekas

OpenAIRE

Senūta, Povilas

2012-01-01

XIX ir ypač XX amžius pasižymėjo stipriomis ideologijomis, kurios ne tik keitė pasaulio ir žmonių gyvenimus, bet ir turėjo įtakos visoms vėlesnėms kartoms. Šio darbo tyrimo objektas – XIX – XXI amžiaus ideologijos kritika. Bandant suprasti pačias svarbiausias ideologijas, neišvengiamai tenka gilintis į marksizmo, kaip vieną iki šių dienų svarbiausią ideologiją ir pabandyti suprasti, kur slypi marksizmo fenomenas. Žinoma, čia neišvengiamai tenka kalbėti ir apie kitas ideologijas, tokias, ku...

K biblickým citacím v Historii o umučení a Kázání XXI Jana Amose Komenského

Czech Academy of Sciences Publication Activity Database

Havelka, Tomáš

2017-01-01

Roč. 65, č. 4 (2017), s. 507-539 ISSN 0009-0468 R&D Projects: GA ČR GB14-37038G Institutional support: RVO:67985955 Keywords : Jan Amos Komenský * Sermon XXI * History of the Sufferings * Gospel harmony * homiletics * biblical quotations * frequency analysis Subject RIV: AJ - Letters, Mass-media, Audiovision OBOR OECD: Religious studies

LA CRISIS AMBIENTAL DEL MUNDO AL INICIAR EL SIGLO XXI: ELEMENTOS PARA SU ANÁLISIS

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Hernán Burbano Orjuela

2005-01-01

Full Text Available Resulta evidente que al iniciar el siglo XXI los seres humanos asisten a un difícil episodio de sus relaciones con la naturaleza. Por ello es conveniente invitar al examen de esta situación para que, desde los diferentes escenarios de la sociedad mundial, se identifiquen sus causas –con sentido de historiay se visualicen las alternativas que permitan entrar en un proceso de resolución del problema. En el presente artículo se busca animar el análisis de la crisis ambiental que vive el mundo de hoy, tomando referentes culturales, científicos y socioeconómicos, que permitan hacer un balance de lo ocurrido y que, en simultánea, hagan posible encontrar caminos para salir de este estado de cosas.

Tecnología, competitividad y agroindustria: La revolución verde en el siglo XXI

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Freddy José Pinto Figueroa

2003-01-01

Full Text Available El manejo agroindustrial venezolano fue básico en eficiencia y desarrollo. Llegado el siglo XXI, se asumen decisiones basadas en adelantos tecnológicos. Nace la “Revolución Verde”, buscando solucionar problemas, ecológica y equilibradamente. La incorporación venezolana a MERCOSUR, motiva investigar experiencias de países miembros. Aspecto resaltante es acceder a tecnologías con rasgos de reinserción en economías globalizadas, bajo cambios tecnoproductivos. Esto circunscribe la producción primaria y las etapas industriales. En tres aspectos: tecnologías, paquetes, y nodos de difusión, se producen cambios, conformándose nuevos esquemas productivos, que interesa comprender bajo los aspectos: agroindustria, comercio, oferta tecnológica, tecnologías de proceso y mecanismosde difusión.

¿Hegemonía o dominio norteamericanos en los inicios del siglo XXI?

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Francisco R. Dávila Aldás

2011-01-01

Full Text Available En este artículo, el autor analiza algunas de las preguntas clave para entender el complicado panorama internacional actual. ¿Estados Unidos ejerce a nivel internacional, durante la primera década del siglo xxi, la función de hegemonía o la de dominio?, ¿se pueden seguir negociando las diferencias y conflictos a partir de las reglas sancionadas por el derecho internacional actual?, o, por el contrario, ¿es menester ajustar las reglas del juego a nivel nacional y mundial y modificarlas sustancialmente? En este contexto, el autor indaga las razones de la pérdida de hegemonía norteamericana y su sustitución por el dominio ejercido a nivel internacional. Aborda también el papel económico y político de otros países y su impacto en la arena internacional dentro de los marcos actuales de crisis económica y política en buena parte del mundo.

History of the theory of numbers

CERN Document Server

Dickson, Leonard Eugene

2005-01-01

The three-volume series History of the Theory of Numbers is the work of the distinguished mathematician Leonard Eugene Dickson, who taught at the University of Chicago for four decades and is celebrated for his many contributions to number theory and group theory. This second volume in the series, which is suitable for upper-level undergraduates and graduate students, is devoted to the subject of diophantine analysis. It can be read independently of the preceding volume, which explores divisibility and primality, and volume III, which examines quadratic and higher forms.Featured topics include

Phalanx. Volume 47, Number 4

Science.gov (United States)

2014-12-01

at $23,200 an hour. So that’s another $1.2M a day. Pete: Don’t they shoot at you? Joe: Well, we usually wire together a bunch of microwave ovens we...Officer, to break his vow never to sail on a “ bird farm.” MORS welcomes Kevin Williams as the new AF sponsor. He became the Director of...person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number

Public Administration Theoretical Aspects Disputes in Legal Science of the Second Half of XX – Early XXI Centuries

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Ol'ga D. Karnaukh

2013-01-01

Full Text Available The article is focused on comparative aspect of different approaches to the “public administration” notion in the legal science of the second half of the XX – early XXI centuries. The author came to a conclusion that the study of many pre-revolutionary, Soviet and modern scientists’ views of the problem of public administration notion definition, its structure, functional orientation and territory administration features allows to conclude that different approaches to its understanding, developed by pre-revolutionary scientists objectively survived, were affected by class ideology in Soviet period and are influenced by the paradigm of law-governed democratic state at present.

Associations between age, body size and nephron number with individual glomerular volumes in urban West African males.

Science.gov (United States)

McNamara, Bridgette J; Diouf, Boucar; Hughson, Michael D; Hoy, Wendy E; Bertram, John F

2009-05-01

Glomerulomegaly has been associated with an increased risk of renal disease. Few reports have investigated the heterogeneity of glomerular size within kidneys and associated risk factors. This study measured the individual glomerular volume (IGV) of 720 non-sclerotic glomeruli in kidneys of adult West African males, and investigated associations of IGV with age, total glomerular (nephron) number and body surface area (BSA). IGVs were determined in the kidneys of 24 Senegalese males from two age groups (12 subjects aged 20- 30 years and 12 subjects aged 50-70 years). Subjects were randomly chosen at autopsies performed at Le Dantec Hospital in Dakar. Volumes of 30 glomeruli per subject were determined using the disector/Cavalieri stereological method. IGVs ranged from 1.31 x 10(6) microm3 to 12.40 x 10(6) microm3 (a 9.4-fold variation). IGV varied up to 5.3-fold within single kidneys. The trimmed range of IGV within subjects (10th to 90th percentile of IGV) was directly correlated with median glomerular size. The mean and standard deviation (SD) of IGV did not differ significantly between age groups or between subjects with higher (> or =1.78 m2) and lower BSA (IGV was significantly and directly correlated with BSA. Kidneys with less than 1 million nephrons had significantly larger mean IGV than kidneys with more than 1 million nephrons, and the trimmed range of IGVs within subjects was inversely correlated with total glomerular number. There was a considerable variation in IGV within kidneys of Senegalese males at autopsy. The heterogeneity of IGV was increased in association with low nephron number and increased BSA, with more pronounced effects in older subjects.

Notas críticas sobre O Capital no século XXI de Thomas Piketty

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ROSA MARIA MARQUES

Full Text Available RESUMO Este artigo tem como objetivo analisar alguns aspectos do último livro de Thomas Piketty, O Capital no século XXI, do ponto de vista Marxista. São abordadas as relações que fundamentam sua análise de longo prazo da desigualdade na distribuição de renda e riqueza, seus conceitos de capital e de longo prazo, bem como sua interpretação do pensamento de Marx. Também são levantados alguns problemas existentes em sua base de dados. A análise tem como ponto de partida a crítica realizada por alguns autores Marxistas de renome, tais como Michel Husson, David Harvey e Yanis Varoufakis, bem como Robert Boyer. entre as conclusões do artigo, destaca-se o fato de o estudo de Piketty estar fracamente fundamentado teoricamente.

TENDENCIAS DE LA MERCADOTECNIA EN EL SIGLO XXI

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Ma. Walesska Schlesinger Díaz

2004-01-01

Full Text Available El presente artículo tiene como objetivo central explorar las tendencias que en el siglo XXI están revolucionando la práctica del mercadeo en las organizaciones. Para ello se caracteriza, en términos generales, el concepto de mercadotecnia, así como, la evolución de la misma desde sus inicios. Posteriormente se consideran los cambios tecnológicos, sociales y de mercado que han surgido en los inicios del milenio, para finalmente identificar las tendencias y desafíos a los cuales se enfrentan las organizaciones. Con la finalidad de recopilar la información se realizó una revisión bibliográfica y documental. Se concluye que las tendencias de la mercadotecnia se orientan al abandono del pensamiento de masas a favor de una participación individualizada con los clientes, en la cual se les trate de una forma muy personal, reconociendo sus intereses y necesidades y creándose un vínculo permanente que no sólo promueva las ventas presentes sino que garantice las ventas futuras de la compañía. Asimismo el estudio reveló que entre los retos más importantes a los que se tienen que enfrentar las organizaciones, están la globalización, la cambiante economía mundial, el auge de la tecnología de la información y la exigencia de una mayor responsabilidad ética y social, lo que implica la necesidad de darle un valor agregado al producto que siga siendo atractiva para el mercado.

Reflexões acerca do Ensino de Pediatria no Século XXI: o Cenário Brasileiro

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Andréia de Santana Silva Moreira

Full Text Available RESUMO Introdução O Relatório Flexner é considerado o ponto de partida para a discussão do ensino da medicina no século XX. Após amplas discussões, em 2001, o Ministério da Educação homologa as Diretrizes Curriculares Nacionais do Curso de Graduação em Medicina (DCN. Tais diretrizes objetivam a formação de um médico generalista, humanista, reflexivo, crítico, que atue como promotor da saúde integral do ser humano. A Pediatria é a área da medicina onde a promoção da saúde integral é de extrema importância, pois a criança é o adulto do futuro. Objetivo Discutir as questões: O que se espera do médico geral, em relação à Pediatria, no século XXI? E a questão dela derivada: Mudanças nas diretrizes para o ensino de Pediatria são necessárias a partir das DCN? Métodos Ensaio reflexivo com base em dois documentos: Diretrizes Curriculares Nacionais do Curso de Graduação em Medicina (DCN e Diretrizes para o Ensino de Pediatria (DEP propostas por Eduardo Marcondes. Discussão Este artigo discorre a respeito das percepções de Marcondes acerca do ensino de Pediatria, correlacionando-as com as DCN e discutindo aspectos importantes na formação do médico, tais como: promoção, prevenção, proteção e reabilitação em saúde e educação médica em Pediatria. Considerações finais As Diretrizes para o Ensino de Pediatria propostas por Marcondes em 1993 parecem se manter extremamente atuais no contexto brasileiro do século XXI, ressalvando-se apenas diferenças de mortalidade e morbidade infantil.

Sakharov readings 2016: environmental problems of the XXI century. Proceedings of the 16 international scientific conference

International Nuclear Information System (INIS)

Maskevich, S.A.; Poznyak, S.S.; Lysukho, N.A.

2016-05-01

The proceeding includes materials of reports of 16-th international scientific conference 'Sakharov readings 2016: Environmental problems of XXI century', which took place 19-20 of May 2015 in the International A. Sakharov Environmental Institute at the Belarus State University (Minsk, Belarus). The proceeding continues abstracts about philosophical, social-ecological and bioethical problems of modernity; education for sustainable development; medical ecology; biological ecology; radiobiology; radioecology and radiation protection; information systems and technologies in ecology and medicine; regional environmental problems; ecological monitoring and management; renewable energy sources and energy efficiency. In the framework of conference a discussion 'Ethical aspects of biomedicine, genetics, nanomedical technologies and human ecology' was conducted. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

PODER JUDICIÁRIO E DIREITOS FUNDAMENTAIS NO SÉCULO XXI: UMA APROXIMAÇÃO ENTRE NORMATIVISMO E MATERIALISMO HISTÓRICO

OpenAIRE

Lima, Monique Falcão; Universidade do Estado do Rio de Janeiro, UERJ

2015-01-01

Este trabalho se apresenta como um ensaio acadêmico e tem como objetivo apresentar o contexto histórico-social que deu origem a um direito constitucional no séc. XXI que tem uma característica específica: integrar materialismo histórico e normatividade. Para tanto, apresentamos a contextualização histórica do desenvolvimento do direito constitucional a partir de fatos históricos e da separação de poderes e, em seguida, o desenvolvimento da função judiciária como efetivação de direitos fundame...

SU-E-T-568: Improving Normal Brain Sparing with Increasing Number of Arc Beams for Volume Modulated Arc Beam Radiosurgery of Multiple Brain Metastases

International Nuclear Information System (INIS)

Hossain, S; Hildebrand, K; Ahmad, S; Larson, D; Ma, L; Sahgal, A

2014-01-01

Purpose: Intensity modulated arc beams have been newly reported for treating multiple brain metastases. The purpose of this study was to determine the variations in the normal brain doses with increasing number of arc beams for multiple brain metastases treatments via the TrueBeam Rapidarc system (Varian Oncology, Palo Alto, CA). Methods: A patient case with 12 metastatic brain lesions previously treated on the Leksell Gamma Knife Perfexion (GK) was used for the study. All lesions and organs at risk were contoured by a senior radiation oncologist and treatment plans for a subset of 3, 6, 9 and all 12 targets were developed for the TrueBeam Rapidarc system via 3 to 7 intensity modulated arc-beams with each target covered by at least 99% of the prescribed dose of 20 Gy. The peripheral normal brain isodose volumes as well as the total beam-on time were analyzed with increasing number of arc beams for these targets. Results: All intensisty modulated arc-beam plans produced efficient treatment delivery with the beam-on time averaging 0.6–1.5 min per lesion at an output of 1200 MU/min. With increasing number of arc beams, the peripheral normal brain isodose volumes such as the 12-Gy isodose line enclosed normal brain tissue volumes were on average decreased by 6%, 11%, 18%, and 28% for the 3-, 6-, 9-, 12-target treatment plans respectively. The lowest normal brain isodose volumes were consistently found for the 7-arc treatment plans for all the cases. Conclusion: With nearly identical beam-on times, the peripheral normal brain dose was notably decreased when the total number of intensity modulated arc beams was increased when treating multiple brain metastases. Dr Sahgal and Dr Ma are currently serving on the board of international society of stereotactic radiosurgery

Gender operations: the film XXY (2007 and the constitution of the body and sex as “natural”.

Directory of Open Access Journals (Sweden)

Luciana Fogaça Monteiro

2009-11-01

Full Text Available Based on Foucault’s concept of the body as the surface of inscription of history, and on the work of Judith Butler, this article questions the way that binary and normative conceptions of gender operate in the constitution of a field of intelligibility for subjects and their bodies. We analyse the film XXY (2007 that tells the story of Alex, an intersexual adolescent. We use the main character's story to see how gender norms act to shape bodies and limit their pleasures. We argue that subjects and bodies that do not correspond to the normative ideal are seen as “abject bodies”, following Butler’s definition. The argument is that gender norms operate on all bodies: the normal and the abject.

Sakharov readings 2014: environmental problems of the XXI century. Proceedings of the 14th international scientific conference

International Nuclear Information System (INIS)

Dunaj, V.I.; Poznyak, S.S.; Lysukho, N.A.

2014-05-01

The proceeding includes materials of reports of 14-th international scientific conference 'Sakharov readings 2014: Environmental problems of XXI century', which took place 29-30 of May 2014 in the International A. Sakharov Environmental University (Minsk, Belarus). The proceeding continues abstracts about social-ecological, ecology-ethical and pedagogical problems in light of the Sakharov' ideas; medical ecology; biological ecology; biomonitoring, bioindication and bioremediation; radioecology and radiation protection; information systems and technologies in ecology and medicine; ecological monitoring, management and audit; renewable energy sources and energy efficiency; climate change and sustainable development; regional ecological problems. Materials of the conference intend on wide area of the specialists in ecology and adjacent sciences, teachers, post-graduate students and students of universities and colleges. (authors)

Perú: Políticas de comunicación en la primera década del siglo XXI

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Max Tello

2009-03-01

Full Text Available Trata la situación de la comunicación en el Perú, y señala que en el siglo XXI el Perú se levantó de tres serias dolencias: crisis política, económica y de gobernabilidad hoy se ve una sociedad en rápido desarrollo pujante y optimista, entregada a la comunicación global y decidida a mirar al futuro. Las políticas de comunicación no son solo leyes y normas que en un país regulan los procesos de comunicación, sino los principios que marcan la relación entre Estado, medios de comunicación y ciudadanos.

Las Humanidades del siglo XXI en Argentina: desafíos y nuevas fronteras

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María Paula Cicogna

2016-01-01

Full Text Available Las Ciencias Humanas en Argentina tienen una historia de casi 120 años; a partir de la inauguración de la Facultad de Filosofía y Letras de la Universidad de Buenos Aires, en 1896, las Humanidades se convierten en parte del currículo en la Universidad y de la formación de los futuros graduados de las escuelas secundarias. Después de un siglo, las Humanidades han recorrido distintas etapas de vida y hoy son aliadas del Buen Gobierno y de las TIC para dar cuenta de su vigencia. Este artículo busca repasar la trayectoria de las Ciencias Humanas en Argentina, y como estas se perfilan en esta segunda década del siglo XXI. Pero para hablar del hoy debemos remitirnos al pasado, para descubrir cómo nacieron las Humanidades en Argentina y conocer el camino que han recorrido, para luego poder vislumbrar cuál es el estado actual de su desarrollo y cuáles serán sus retos.

Las Humanidades del siglo XXI en Argentina: desafíos y nuevas fronteras*

Directory of Open Access Journals (Sweden)

María Paula A. Cicogna

2016-01-01

Full Text Available Las Ciencias Humanas en Argentina tienen una historia de casi 120 años; a partir de la inauguración de la Facultad de Filosofía y Letras de la Universidad de Buenos Aires, en 1896, las Humanidades se convierten en parte del currículo en la Universidad y de la formación de los futuros graduados de las escuelas secundarias. Después de un siglo, las Humanidades han recorrido distintas etapas de vida y hoy son aliadas del Buen Gobierno y de las TIC para dar cuenta de su vigencia. Este artículo busca repasar la trayectoria de las Ciencias Humanas en Argentina, y como estas se perfilan en esta segunda década del siglo XXI. Pero para hablar del hoy debemos remitirnos al pasado, para descubrir cómo nacieron las Humanidades en Argentina y conocer el camino que han recorrido, para luego poder vislumbrar cuál es el estado actual de su desarrollo y cuáles serán sus retos.

Informalidad del siglo XXI. Características de la oferta informal de suelo y vivienda en Bogotá durante la primera década del siglo XXI

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Angu00E9lica Patricia Camargo Sierra

2012-01-01

Full Text Available El artículo caracteriza las condiciones de la oferta informal de suelo y vivienda durante la primera década del siglo xxi en Bogotá, en cuanto a magnitud y localización del crecimiento de la urbanización informal (nuevos asentamientos en la periferia y densificación informal de áreas consolidadas, condiciones habitacionales de viviendas en ocupaciones recientes y las características de funcionamiento en términos de mercado del suelo. El panorama de la última década se reconstruyó con base en análisis de aerofotografías, cuantificación de datos censales y análisis de datos de las entidades de planificación y control a la urbanización informal. Los resultados sugieren que debido al agotamiento relativo del suelo en Bogotá, entre otros aspectos, las dinámicas a partir de las cuales opera el mercado informal han experimentado cambios frente a décadas anteriores, pues el crecimiento en densificación de asentamientos en la ciudad consolidada cobra mayor importancia relativa frente al desarrollo informal en las periferias, pero a la vez se intuye una expansión de la informalidad que trasciende el perímetro distrital.

Women in numbers Europe II contributions to number theory and arithmetic geometry

CERN Document Server

Ozman, Ekin; Johnson-Leung, Jennifer; Newton, Rachel

2018-01-01

Inspired by the September 2016 conference of the same name, this second volume highlights recent research in a wide range of topics in contemporary number theory and arithmetic geometry. Research reports from projects started at the conference, expository papers describing ongoing research, and contributed papers from women number theorists outside the conference make up this diverse volume. Topics cover a broad range of topics such as arithmetic dynamics, failure of local-global principles, geometry in positive characteristics, and heights of algebraic integers. The use of tools from algebra, analysis and geometry, as well as computational methods exemplifies the wealth of techniques available to modern researchers in number theory. Exploring connections between different branches of mathematics and combining different points of view, these papers continue the tradition of supporting and highlighting the contributions of women number theorists at a variety of career stages. Perfect for students and researche...

Women In Numbers - Europe workshop

CERN Document Server

Bucur, Alina; Feigon, Brooke; Schneps, Leila

2015-01-01

Covering topics in graph theory, L-functions, p-adic geometry, Galois representations, elliptic fibrations, genus 3 curves and bad reduction, harmonic analysis, symplectic groups and mould combinatorics, this volume presents a collection of papers covering a wide swath of number theory emerging from the third iteration of the international Women in Numbers conference, “Women in Numbers - Europe” (WINE), held on October 14–18, 2013 at the CIRM-Luminy mathematical conference center in France. While containing contributions covering a wide range of cutting-edge topics in number theory, the volume emphasizes those concrete approaches that make it possible for graduate students and postdocs to begin work immediately on research problems even in highly complex subjects.

¿ES VIABLE EL CONDUCTISMO EN EL SIGLO XXI? / IS BEHAVIORISM VIABLE IN THE XXI CENTURY?

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Telmo Eduardo Peña Correal*

2010-08-01

Full Text Available RESUMENSe hace una revisión conceptual sobre el conductismo en la cual se discuten sus principales características, con elobjetivo de determinar su viabilidad como propuesta para la psicología del siglo XXI. A partir del supuesto de que elconductismo no es una teoría unificada de la psicología, sino una filosofía de esta disciplina, se presentan los tópicos sobrelos cuales hay mayor coincidencia entre los conductistas, a saber, la idea de que la psicología es una ciencia natural, que esuna ciencia empírica, que intenta generar un conocimiento en el que se controlen los sesgos subjetivistas (objetividad yfinalmente que utiliza en la tarea investigativa de forma preferente la metodología experimental. Se señalan igualmentealgunos tópicos sobre los cuales hay debate entre los conductistas, tales como el nivel de molecularidad o molaridad en elanálisis, la necesidad o no de factores mediadores y el uso de la investigación ideográfica vs la investigación nomotética.El trabajo concluye señalando cómo algunos de los conceptos más conocidos como «estímulo», «respuesta»,«condicionamiento» entre otros, no son esenciales al conductismo y eventualmente podrían ser reemplazados por otros.ABSTRACTA conceptual review of Behaviorism is presented in which its main features are discussed with the purpose of assessingits viability as a proposal for the XXIth century. Based on the premise that behaviorism is not a unified theory of psychology,but a philosophy of this science, some of the topics on which there is greater coincidence between the behaviourists arepresented, namely the assumption that psychology is a natural and empirical science, which attempts to generate knowledgein which subjectivistic biases (objectivity are controlled and finally that it prefers the experimental methodology in theirempirical studies. Also are brought some topics on which there is debate among the behaviorists, such as the level ofmolecularity or

Comparing Volumes of Prisms and Pyramids

Science.gov (United States)

Vinogradova, Natalya

2012-01-01

Students' experience in using formulas for volumes is often limited to substituting numbers into given formulas. An activity presented in this article may help students make connections between the formulas for volumes of prisms and volumes of pyramids. In addition, some interesting facts from number theory arise, demonstrating strong connections…

Stereological estimation of ovarian volume and number of follicles in low dose of Vitex agnus castus treated mice

OpenAIRE

HAMIDIAN, Gholamreza; YAHYAVI, Fariba

2014-01-01

Vitex agnus castus (VAC) has been proven to have a wide range of biological activities. It is commonly used in the treatment of menstrual disorders resulting from corpus luteum deficiency, including premenstrual symptoms and spasmodic dysmenorrheal, for certain menopausal conditions, and for insufficient lactation. The aim of this study was to investigate the effects of low dose of VAC essential oil on ovarian volume and oocyte number in mice by stereological technique. In this study 10 young...

Waste Retrieval Sluicing System Campaign Number 3 Solids Volume Transferred Calculation

International Nuclear Information System (INIS)

CAROTHERS, K.G.

1999-01-01

Waste Retrieval Sluicing System (WRSS) operations at tank 241-C-106 began on Wednesday, November 18, 1998. The purpose of this system is to retrieve and transfer the high-heat sludge from the tank for storage in double-shell tank 241-AY-102, thereby resolving the high-heat safety issue for the tank, and to demonstrate modernized past-practice retrieval technology for single-shell tank waste. Performance Agreement (PA) TWR 1.2.2, C-106 Sluicing, was established by the Department of Energy, Office of River Protection (ORP) for achieving completion of sluicing retrieval of waste from tank 241-C-106 by September 30, 1999. This level of sludge removal is defined in the PA as either removal of approximately 72 inches of sludge or removal of 172,000 gallons of sludge (approximately 62 inches) and less than 6,000 gallons (approximately 2 inches) of sludge removal per 12 hour sluice batch for three consecutive batches. Preliminary calculations of the volume of tank 241-C-106 sludge removed as of September 29, 1999 were provided to ORP documenting completion of PA TWR 1.2.2 (Allen 1999a). The purpose of this calculation is to document the final sludge volume removed from tank 241-C-106 up through September 30, 1999. Additionally, the results of an extra batch completed October 6, 1999 is included to show the total volume of sludge removed through the end of WRSS operations. The calculation of the sludge volume transferred from the tank is guided by engineering procedure HNF-SD-WM-PROC-021, Section 15.0,Rev. 3, sub-section 4.4, ''Calculation of Sludge Transferred.''

Waste Retrieval Sluicing System Campaign Number 3 Solids Volume Transferred Calculation

International Nuclear Information System (INIS)

CAROTHERS, K.G.

1999-01-01

Waste Retrieval Sluicing System (WRSS) operations at tank 241-C-106 began on Wednesday, November 18,1998. The purpose of this system is to retrieve and transfer the high-heat sludge from the tank for storage in double-shell tank 241-AY-102, thereby resolving the high-heat safety issue for the tank, and to demonstrate modernized past-practice retrieval technology for single-shell tank waste. Performance Agreement (PA) TWR 1.2.2, C-106 Sluicing, was established by the Department of Energy, Office of River Protection (ORP) for achieving completion of sluicing retrieval of waste from tank 241-C-106 by September 30,1999. This level of sludge removal is defined in the PA as either removal of approximately 72 inches of sludge or removal of 172,000 gallons of sludge (approximately 62 inches) and less than 6,000 gallons (approximately 2 inches) of sludge removal per 12 hour sluice batch for three consecutive batches. Preliminary calculations of the volume of tank 241-C-106 sludge removed as of September 29, 1999 were provided to ORP documenting completion of PA TWR 1.2.2 (Allen 1999a). The purpose of this calculation is to document the final sludge volume removed from tank 241-C-106 up through September 30, 1999. Additionally, the results of an extra batch completed October 6, 1999 is included to show the total volume of sludge removed through the end of WRSS operations. The calculation of the sludge volume transferred from the tank is guided by engineering procedure HNF-SD-WM-PROC-021, Section 15.0,Rev. 3, sub-section 4.4, ''Calculation of Sludge Transferred.''

Tendencias de la multialfabetización en los albores del siglo XXI: alfabetización mediática e informacional (AMI como propuesta integradora

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Maylin Frías-Guzmán

Full Text Available La evolución de alfabetismos se produjo como resultado de la transición de una cultura oral a una cultura letrada. El presente estudio examina las principales tendencias de la multialfabetización a principios del siglo XXI. Se combina el método de análisis documental y el método bibliométrico en el análisis de la evolución de los alfabetismos, a través de documentos que establecen pautas en su fundamentación y el comportamiento de la producción científica por año en la primera década del siglo XXI. Se revela el lugar destacado que ocupan la Alfabetización Mediática y la Alfabetización Informacional con respecto al resto de las expresiones que surgen. La Alfabetización Multimedia es un alfabetismo poco abordado en la literatura como proceso de formación de competencias vinculadas a la recepción y producción de mensajes a partir de la convergencia de lenguajes y medios. La noción de Alfabetización Mediática e Informacional (AMI constituye la principal tendencia que integra los diversos alfabetismos que promueven la participación activa en la construcción y transformación del individuo y la sociedad.

CRITICAL DEVELOPMENT OF COSTING METHODS USED IN THE FURNITURE INDUSTRY, IN THE CONTEXT OF ECONOMIC REALITY SPECIAL XXI CENTURY

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Ene Dumitru

2010-12-01

Full Text Available In the current economic downturn in the furniture industry companies, to face competition, requires new costing methods to succeed, in a flexible manner, fructifying market information, inside to find levers to identify places, resource intensive activities and then cost reduction opportunities. New methods of management cost excess the accounting and economics scope Current economic situation requires this work and converts the cost information into the main tool of insurance competitiveness and profitability of the company. Applying the standard cost in single cost model is a viable business solutions of enterprises in the furniture industry to face strong competition from European Union, specifically in the context of complex economic XXI century.

EL TURISMO RESIDENCIAL ¿UNA MANIFESTACIÓN DE NUEVOS TURISMOS Y NUEVOS COMPORTAMIENTOS TURÍSTICOS EN EL SIGLO XXI?

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Pere A. Salvà Tomàs

2011-01-01

Full Text Available El concepto de turismo residencial evoluciona desde su apreciación convencional con motivaciones parecidas al turismo de masas tradicional hacia una nueva aceptación que implica la creación de nuevos espacios de ocio alejados de sus territorios de origen. En esta nueva aceptación, que implica una alta movilidad humana residencial, es básica la búsqueda de un estilo de vida en la que es importante la autorrealización personal y un deseo de una mejor calidad de vida. Así el turismo residencial se conforma como una manifestación de los nuevos comportamientos turísticos en el siglo XXI.

Defense AT&L. Volume 38, Number 5. September-October 2009

Science.gov (United States)

2009-10-01

horse? Systems acquisition should consider a return to the Keep It Simple, Stupid— KISS —principle, challenging the need for tight integration and...the rocket. It was a relatively fragile ship, with a cabin barely larger than the combined volume of two tele- phone booths . It provided adequate

La experiencia de mujeres con discapacidades en los proyectos archivísticos del siglo XXI

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Dora Inés Munévar M.

2011-09-01

Full Text Available El artículo analiza la manera como los proyectos archivísticos del siglo XXI podrían favorecer la reconstituciónde subjetividades silenciadas y develar historias de exclusión. Se toma como caso de análisis ladocumentación sobre mujeres con discapacidades en instituciones de rehabilitación, salud mental oprotección legal. A partir de allí, la autora propone mecanismos para que la información depositadaen los archivos, especialmente institucionales, contribuya a la recuperación de la memoria, y a la democratizacióny descolonización de la historia de grupos excluidos y marginados. Esto gracias a que losarchivos albergan no solo documentos escritos autorizados sino una multiplicidad de materiales oralesy visuales.Materiales que pueden contribuir a la visibilización y reconocimiento de la diferencia, desdelas experiencias vidas de, por ejemplo, las mujeres con discapacidades, quienes adquirirían así una vozpropia.

Filosofa y ética gerencial para las empresas del siglo XXI

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Elsa Fernandez

2005-01-01

Full Text Available El artículo desarrolla a manera de ensayo una visión general sobre el valor y al- cance de la filosofía y ética gerencial para las empresas del siglo XXI, así como de las consideraciones administrativas para asumir este enfoque como modelo para el desa- rrollo empresarial. Mediante este análisis, se reflexiona acerca de la introducción de la ética gerencial ante los nuevos escenarios organizacionales, se describen los factores que ejercen influencia sobre el surgimiento de un nuevo formato corporativo en las empresas que deciden renovar su capacidad de acción dentro del ámbito de la filoso- fía y ética gerencial, que estimule a los empresarios a asumir los cambios necesarios para establecer nuevas formas de hacer negocios dentro del contexto económico y ante el mercado, asegurando una eficaz optimización de sus procesos administrativos, especialmente de la toma de decisiones, consolidar una visión moral y con responsabilidad social de la empresa, siendo sus premisas fundamentales la excelencia, la justicia, la equidad, la oportunidad, la confianza, la confiabilidad, el flujo de información y la comunicación y cuyo funcionamiento describa su personalidad definitoria,tanto para sus integrantes como para los agentes externos con los cuales se relaciona.

A constant-volume rapid exhaust dilution system for motor vehicle particulate matter number and mass measurements.

Science.gov (United States)

Maricq, M Matti; Chase, Richard E; Xu, Ning; Podsiadlik, Diane H

2003-10-01

An improved version of the constant volume sampling (CVS) methodology that overcomes a number of obstacles that exist with the current CVS dilution tunnel system used in most diesel and gasoline vehicle emissions test facilities is presented. The key feature of the new sampling system is the introduction of dilution air immediately at the vehicle tailpipe. In the present implementation, this is done concentrically through a cylindrical air filter. Elimination of the transfer hose conventionally used to connect the tailpipe to the dilution tunnel significantly reduces the hydrocarbon and particulate matter (PM) storage release artifacts that can lead to wildly incorrect particle number counts and to erroneous filter-collected PM mass. It provides accurate representations of particle size distributions for diesel vehicles by avoiding the particle coagulation that occurs in the transfer hose. Furthermore, it removes the variable delay time that otherwise exists between the time that emissions exit the tailpipe and when they are detected in the dilution tunnel. The performance of the improved CVS system is examined with respect to diesel, gasoline, and compressed natural gas vehicles.

Finite volume simulation of 2-D steady square lid driven cavity flow at high reynolds numbers

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K. Yapici

2013-12-01

Full Text Available In this work, computer simulation results of steady incompressible flow in a 2-D square lid-driven cavity up to Reynolds number (Re 65000 are presented and compared with those of earlier studies. The governing flow equations are solved by using the finite volume approach. Quadratic upstream interpolation for convective kinematics (QUICK is used for the approximation of the convective terms in the flow equations. In the implementation of QUICK, the deferred correction technique is adopted. A non-uniform staggered grid arrangement of 768x768 is employed to discretize the flow geometry. Algebraic forms of the coupled flow equations are then solved through the iterative SIMPLE (Semi-Implicit Method for Pressure-Linked Equation algorithm. The outlined computational methodology allows one to meet the main objective of this work, which is to address the computational convergence and wiggled flow problems encountered at high Reynolds and Peclet (Pe numbers. Furthermore, after Re > 25000 additional vortexes appear at the bottom left and right corners that have not been observed in earlier studies.

ALBORES DEL SIGLO XXI Y TRANSICIÓN ADOLESCENTE. LOS ADOLESCENTES ANTE LA CRISIS MUNDIAL

Directory of Open Access Journals (Sweden)

2002-01-01

Full Text Available El paso de la niñez a la vida adulta en los humanos es un periodo de cambio y reestructuración que ofrece tanto posibilidades de avanzar en el desarrollo personal y en la integración a la cultura, como riesgos de fracasar en el intento de lograrlo. Este trabajo tiene como hilo conductor las preguntas acerca de los retos específicos que tienen que enfrentar los adolescentes de principios del siglo XXI en esta era de cambio y transición radical, así como de los recursos con que cuentan para vérselas con un mundo en crisis que hace difícil ya creer en el desarrollo a perpetuidad. Las respuestas a tales cuestiones van surgiendo a lo largo del trabajo como resultado de la escucha de voces de adolescentes que entretejen a sus angustias y temores presentes sus fantasías y proyectos, así como la esperanza de que a pesar de todo tengamos un futuro como especie.

Topics in number theory

CERN Document Server

LeVeque, William J

2002-01-01

Classic two-part work now available in a single volume assumes no prior theoretical knowledge on reader's part and develops the subject fully. Volume I is a suitable first course text for advanced undergraduate and beginning graduate students. Volume II requires a much higher level of mathematical maturity, including a working knowledge of the theory of analytic functions. Contents range from chapters on binary quadratic forms to the Thue-Siegel-Roth Theorem and the Prime Number Theorem. Includes numerous problems and hints for their solutions. 1956 edition. Supplementary Reading. List of Symb

Cyberwar XXI: quantifying the unquantifiable: adaptive AI for next-generation conflict simulations

Science.gov (United States)

Miranda, Joseph; von Kleinsmid, Peter; Zalewski, Tony

2004-08-01

The era of the "Revolution in Military Affairs," "4th Generation Warfare" and "Asymmetric War" requires novel approaches to modeling warfare at the operational and strategic level of modern conflict. For example, "What if, in response to our planned actions, the adversary reacts in such-and-such a manner? What will our response be? What are the possible unintended consequences?" Next generation conflict simulation tools are required to help create and test novel courses of action (COA's) in support of real-world operations. Conflict simulations allow non-lethal and cost-effective exploration of the "what-if" of COA development. The challenge has been to develop an automated decision-support software tool which allows competing COA"s to be compared in simulated dynamic environments. Principal Investigator Joseph Miranda's research is based on modeling an integrated military, economic, social, infrastructure and information (PMESII) environment. The main effort was to develop an adaptive AI engine which models agents operating within an operational-strategic conflict environment. This was implemented in Cyberwar XXI - a simulation which models COA selection in a PMESII environment. Within this framework, agents simulate decision-making processes and provide predictive capability of the potential behavior of Command Entities. The 2003 Iraq is the first scenario ready for V&V testing.

La Educación en Enfermeria, un reto necesario para el siglo XXI

Directory of Open Access Journals (Sweden)

Luz Marina Bautista-Rodriguez

2004-12-01

Full Text Available La sociedad contemporánea se ve influenciada por los cambios que en el ámbito económico, de salud, socio-cultural y de educación se vienen presentando. El nuevo siglo motiva a reflexionar lo que se ha logrado como profesionales de enfermería y, desde esta realidad, enfocar el futuro hacia mejorar o cambiar la formación, que contribuya a la consecución de un mejor nivel de salud y calidad de vida de las poblaciones. Enfermería es la única profesión del área de la salud que está presente en todos los escenarios de los diferentes niveles de atención, situación que la hace una profesión con una visión trascendente. El presente artículo plantea de manera general el contexto que fundamenta la necesidad de formación y capacitación en los profesionales de enfermería como un desafío para el siglo XXI, que requiere del desarrollo de competencias determinadas desde lo personal y lo profesional.

NJP Volume 38 Number 1 PDF.cdr

African Journals Online (AJOL)

Prof Ezechukwu

discrimination against HIV orphans. ... both of their parents to AIDS The estimated number of AIDS orphans in Nigeria at the end of 2007 was. 1,200,000. ..... American Academy of ... Malabika et al , in central Kampala, Uganda, it was reported ...

Saint-Petersburg Department of Euro-Asian Geophysical Society (SPD EAGS) and it role in XXI century personnel forming

International Nuclear Information System (INIS)

Kal'varskaya, V.P.

2001-01-01

In the paper is pointed to that in the XXI century the geophysics for the most part has being the information basis in the geologic study of the Earth's interior. The status, development and practical realization of this basis depends on personnel - the specialists of a new type. It is necessary a creation and introducing of constantly acting system of quality for young geologic and geophysical scientists and specialists training on the the base of up-to-date achievement of science and technologies formation of their ideology on the ground of philosophic understanding and spirit values. In the capacity of control-marking factor in the framework of the system the most effective are conferences-competition of young specialists: geologists-geophysicists, geo-chemists and other specialists of geologic profile

Desafíos a la igualdad en el siglo XXI: dificultades y retos del modelo de escuela comprensiva

Directory of Open Access Journals (Sweden)

Rubén García Pedraza

2015-12-01

Full Text Available El principio de  la igualdad en educación presenta nuevos desafíos en el siglo XXI a consecuencia del impacto de la aparición de los dos nuevos fenómenos de la globalización y el postmodernismo, que ponen a prueba la excelencia educativa en igualdad de condiciones, objetivo inicial de la escuela comprensiva. El nuevo contexto del neoliberalismo y del relativismo ha supuesto el cuestionamiento de las metanarrativas existentes en la Modernidad, y ha derivado en la aparición de nuevos retos al modelo tradicional de la escuela comprensiva en el que tradicionalmente se ha encarnado en España el principio de igualdad en educación en sus dos conceptos, débil y fuerte, de equidad social. 

Algebraic number theory

CERN Document Server

Weiss, Edwin

1998-01-01

Careful organization and clear, detailed proofs characterize this methodical, self-contained exposition of basic results of classical algebraic number theory from a relatively modem point of view. This volume presents most of the number-theoretic prerequisites for a study of either class field theory (as formulated by Artin and Tate) or the contemporary treatment of analytical questions (as found, for example, in Tate's thesis).Although concerned exclusively with algebraic number fields, this treatment features axiomatic formulations with a considerable range of applications. Modem abstract te

Teoría microsocial de los símbolos literarios: el análisis del cambio sociocultural como desafío del siglo XXI

OpenAIRE

Garcia-Peña, Lilia

2015-01-01

Nuestro mundo en el siglo XXI cambia velozmente, la literatura es especialmente sensible a las dinámicas sociales y las expresa, estéticamente, con profundidad y claridad. En este trabajo propongo un enfoque microsocial del análisis de los símbolos literarios para la interpretación de las representaciones del cambio sociocultural en las obras y para la reafirmación de la literatura como expresión y agente de la dinámica sociocultural, me apoyo para ello básicamente en la microsociología de Er...

Variable volume combustor

Science.gov (United States)

Ostebee, Heath Michael; Ziminsky, Willy Steve; Johnson, Thomas Edward; Keener, Christopher Paul

2017-01-17

The present application provides a variable volume combustor for use with a gas turbine engine. The variable volume combustor may include a liner, a number of micro-mixer fuel nozzles positioned within the liner, and a linear actuator so as to maneuver the micro-mixer fuel nozzles axially along the liner.

About role of 'Nuclear sciences' and other trends of scientific and technological works in innovation development of phenomena and globalization processes in XX and XXI centuries

International Nuclear Information System (INIS)

Arifov, P.V.; Azimova, D.S.; Trostyanskij, D.V.; Umarov, A.G.

2005-01-01

It is concluded, that just successful development of scientific and technological works in the field 'Nuclear Sciences' results economy advantages for USA and some West countries compared with USSR and the rest countries of East Europe. In the following decades this advantage allows to a leader-countries develop with success principally new trends of scientific, technological workings in the a wide-scale sphere of natural, technical, biomedical, and other related sciences. Here soon the USA gap from other world countries was achieved. In the field of fundamental sciences there are such fields: Computer Sciences (1940 and then), Space Sciences (1950 and then), Life Sciences (1960 and then), Computer tomography Sciences (1970 and then). Material Researches Sciences (1980 and then), Internet Sciences (1994 and then), Nanosciences and Nanotechnologies (1999 and then). In the end of XX century these advantages allow to USA to realize two known global innovation initiatives having National character: Ballistic Missile Defense - from 1983, Internet - from 1994, and to declare the third one - targeting to the XXI century - Nanosciences and Nanotechnologies - from 1999. It is noted, that due to unexampled high temps of development of phenomena and globalization in the XXI century the specialists and professionals of Uzbekistan in the shortest time have to learn the newest world experience in order to ensure worthy status for the young independent state in the world developed countries commonwealth in new age

GLOBAL CRISIS’ IMPACT UPON THE EMPLOYED NUMBER IN HOSPITALITY INDUSTRY

OpenAIRE

MARIAN ZAHARIA; ANIELA BALACESCU; RODICA MANUELA GOGONEA

2014-01-01

TThe globalization, complex interconnection process of the economies of states, is a reality of the XXI century. However, at the end of the first decade of this century, besides the positive effects of this process, due to the economic interconnections created, it has favored also a rapid propagation of a negative economic phenomenon: the global economic crisis. Its impact significantly influenced the hospitality industry, important component of modern economies. This paper examines over a pe...

Vulnerabilidade social: transformaÃÃes no espaÃo urbano de Fortaleza no inÃcio do sÃculo XXI

OpenAIRE

Rachel Vieira de Araujo

2015-01-01

Estudos sobre vulnerabilidade social estÃo presentes em vÃrias metrÃpoles da AmÃrica Latina. Tais espaÃos sÃo permeados por desigualdades onde diferentes grupos sociais vivem em condiÃÃes precÃrias com dÃficit de infraestrutura e serviÃos e outros vivem em Ãtimas condiÃÃes, com elevados Ãndices educacionais, renda, infraestrutura e uma gama de serviÃos. O trabalho traz a discussÃo da vulnerabilidade social em Fortaleza no inÃcio do sÃculo XXI. Para isso à necessÃrio compreender como a expa...

Fast integration using quasi-random numbers

International Nuclear Information System (INIS)

Bossert, J.; Feindt, M.; Kerzel, U.

2006-01-01

Quasi-random numbers are specially constructed series of numbers optimised to evenly sample a given s-dimensional volume. Using quasi-random numbers in numerical integration converges faster with a higher accuracy compared to the case of pseudo-random numbers. The basic properties of quasi-random numbers are introduced, various generators are discussed and the achieved gain is illustrated by examples

Fast integration using quasi-random numbers

Science.gov (United States)

Bossert, J.; Feindt, M.; Kerzel, U.

2006-04-01

Quasi-random numbers are specially constructed series of numbers optimised to evenly sample a given s-dimensional volume. Using quasi-random numbers in numerical integration converges faster with a higher accuracy compared to the case of pseudo-random numbers. The basic properties of quasi-random numbers are introduced, various generators are discussed and the achieved gain is illustrated by examples.

Radiocarbon dates XXI

International Nuclear Information System (INIS)

Lowdon, J.A.; Blake, W. Jr.

1981-01-01

This list includes 105 radiocarbon age determinations on 104 geological samples made by the Radiocarbon Dating Laboratory. They are on samples from various areas as follows: Labrador Shelf (2); Newfoundland (12); Nova Scotia (2); New Brunswick (1); Quebec (3); Ontario (1); Manitoba (1); Alberta (2); British Columbia (15); Yukon Territory (35); Northwest Territories, Mainland (10); Northwest Territories, Arctic Archipelago (21). Details of background and standard for the 2 L and 5 L counters during the period from November 4, 1980 to October 31, 1981 are summarized in Tables 1 and 2; Table 3 gives the number of counts used to determine the average background and standard counting rates; and Table 4 lists the number of different background and standard gas preparations used for counting

Aprendizaje de lenguas europeas en las personas sordas y sordociegas en el siglo XXI. Conclusiones de las Jornadas

Directory of Open Access Journals (Sweden)

Claudia Portilla

2002-01-01

Full Text Available En el marco del «Año Europeo de las Lenguas 2001» se realizaron en la ciudad de Barcelona las Jornadas Científicas sobre Aprendizaje de las lenguas europeas en las personas sordas y sordociegas en el siglo XXI con el financiamiento de la Unión Europea, la ONCE, la FESOCA, entre otras. En líneas generales sus objetivos fueron: aumentar la concienciación acerca de las lenguas de signos europeas, promover su aprendizaje, difundir las nuevas tecnologías y establecer vínculos para el intercambio de experiencias, información y materiales multimedia. Con este fin se invitó a exponer sus trabajos a investigadores de diversos países. Entre los asistentes hubo investigadores, personas sordas y sordociegas, docentes y estudiantes en el ámbito nacional e internacional.

Measurement uncertainty of ester number, acid number and patchouli alcohol of patchouli oil produced in Yogyakarta

Science.gov (United States)

Istiningrum, Reni Banowati; Saepuloh, Azis; Jannah, Wirdatul; Aji, Didit Waskito

2017-03-01

Yogyakarta is one of patchouli oil distillation center in Indonesia. The quality of patchouli oil greatly affect its market price. Therefore, testing quality of patchouli oil parameters is an important concern, one through determination of the measurement uncertainty. This study will determine the measurement uncertainty of ester number, acid number and content of patchouli alcohol through a bottom up approach. Source contributor to measurement uncertainty of ester number is a mass of the sample, a blank and sample titration volume, the molar mass of KOH, HCl normality, and replication. While the source contributor of the measurement uncertainty of acid number is the mass of the sample, the sample titration volume, the relative mass and normality of KOH, and repetition. Determination of patchouli alcohol by Gas Chromatography considers the sources of measurement uncertainty only from repeatability because reference materials are not available.

PODER JUDICIÁRIO E DIREITOS FUNDAMENTAIS NO SÉCULO XXI: UMA APROXIMAÇÃO ENTRE NORMATIVISMO E MATERIALISMO HISTÓRICO

Directory of Open Access Journals (Sweden)

Monique Lima Falcão

2015-07-01

Full Text Available Este trabalho se apresenta como um ensaio acadêmico e tem como objetivo apresentar o contexto histórico-social que deu origem a um direito constitucional no séc. XXI que tem uma característica específica: integrar materialismo histórico e normatividade. Para tanto, apresentamos a contextualização histórica do desenvolvimento do direito constitucional a partir de fatos históricos e da separação de poderes e, em seguida, o desenvolvimento da função judiciária como efetivação de direitos fundamentais e ponte entre as duas vertentes teórico-metodológicas. Poder Judiciário; Normativismo; Materialismo histórico

European Science Notes. Volume 41, Number 7.

Science.gov (United States)

1987-07-01

college preparatory that the social constructionist view, as group. (Chances are only slightly better he describes it, offers anything more for the...new method for the recognition and positioning of two-dimensionl objects. The method uses segmented descriptions of the object contours to generate...and recursively evaluate a number of selected hypotheses. This article dis- cusses the method in detail. International Symposium on Simulation of

Employability skills of vocational high school graduate needed by industry in century XXI

Science.gov (United States)

Sudjimat, Dwi Agus

2017-09-01

Mastery of employability skills is one of the main characteristics of HR XXI Century. The conclusions of various theoretical and empirical studies show that human resources with high employability skills are not only easier to find a job but will also be able to exist and develop successfully in their work. This study aims to describe the opinion of the industry leaders about the importance of employability skills owned by SMK graduates, to identify the various values of employability skills that the industry needs from SMK graduates, and categorize the values of employability skills that SMK graduates should have. A total of 27 industries partner of SMK in East Java were involved in survey research and 14 productive teachers from seven SMKs were included in the FGD on employability skills development. The results showed that (1) all industry leaders argue that the graduates of SMK must have good employability skills, (2) dimensions of employability skills include the fundamental skills, personal management skills, and team work skills; and (3) the ownership of various values of employability skills by SMK graduates can be classified into two, namely (a) must be owned and should be developed in SMK, and (b) well owned and better developed in SMK.

Hydration numbers of trivalent lanthanide and actinide ions

International Nuclear Information System (INIS)

David, F.; Fourest, B.; Duplessis, J.

1987-01-01

Investigations on the structure of actinide aquo ions and determination of hydration numbers have to be studied, essentially, through radiochemical methods. They measured the transport numbers, diffusion coefficient D by the open end capillary method and ionic mobility u by electrophoresis. Both methods show a discontinuity in the transport number corresponding to the crystallographic radius of Eu 3+ or Bk 3+ ion. They deduced the volume of the actinide aquo ions, and the coordination number in the primary sphere. From calculations of the electrostriction phenomenon in the vicinity of central ion, they obtained effective volume of the water molecules and the dynamic hydration number corresponding to the second hydration sphere

The number of stem cells in the subependymal zone of the adult rodent brain is correlated with the number of ependymal cells and not with the volume of the niche.

Science.gov (United States)

Kazanis, Ilias; Ffrench-Constant, Charles

2012-05-01

The mammalian subependymal zone (SEZ; often called subventricular) situated at the lateral walls of the lateral ventricles of the brain contains a pool of relatively quiescent adult neural stem cells whose neurogenic activity persists throughout life. These stem cells are positioned in close proximity both to the ependymal cells that provide the cerebrospinal fluid interface and to the blood vessel endothelial cells, but the relative contribution of these 2 cell types to stem cell regulation remains undetermined. Here, we address this question by analyzing a naturally occurring example of volumetric scaling of the SEZ in a comparison of the mouse SEZ with the larger rat SEZ. Our analysis reveals that the number of stem cells in the SEZ niche is correlated with the number of ependymal cells rather than with the volume, thereby indicating the importance of ependymal-derived factors in the formation and function of the SEZ. The elucidation of the factors generated by ependymal cells that regulate stem cell numbers within the SEZ is, therefore, of importance for stem cell biology and regenerative neuroscience.

The theory of algebraic numbers

CERN Document Server

Pollard, Harry

1998-01-01

An excellent introduction to the basics of algebraic number theory, this concise, well-written volume examines Gaussian primes; polynomials over a field; algebraic number fields; and algebraic integers and integral bases. After establishing a firm introductory foundation, the text explores the uses of arithmetic in algebraic number fields; the fundamental theorem of ideal theory and its consequences; ideal classes and class numbers; and the Fermat conjecture. 1975 edition. References. List of Symbols. Index.

European Scientific Notes. Volume 36, Number 11.

Science.gov (United States)

1982-11-30

and polyisocyanides appear to by S. Piccarolo (Univ. of Palermo , Italy) of the be unique in their behavior in solution, thermal expansion of...of solvent down polyethylenes was investigated by D. Curto an activity gradient coupled with time- (Univ. of Palermo , Italy). When the rheo- dependent...ambitious in Paris. Projects are projected to start in program for a number of reasons, which were 1983 in Pakistan, India, Colombia , and Saudi discussed

European Scientific Notes. Volume 34. Number 5,

Science.gov (United States)

1980-05-31

of spontaneous and (Al, Nb), have been fabricated. Prop- induced photomagnetic properties; (3) erties of quantum interference for The ’discovery and...conducting quantum interference device) sputter deposition on a number of sub- has a periodic voltage response to an strates (e.g., Go, SiO. thermally...designed and MICROWAVE ANTE POLARIZATION tested. With one of the smaller cryo- DVERSITY AT tINDHOVAN UNIVERSITY stats, magnetic levitation of an "anten

European Science Notes. Volume 40, Number 4.

Science.gov (United States)

1986-04-01

increase during A representative governing board senescence; this suggests that basal oversees the activities of the Center. gluconeogenesis is...cultures of sensory neurons and they derive from the same number of Schwann cells that reproduce the morpho- cells. These and other results led to logical...bithorax function com- munoreactive neurons in the central pletely. Because of this observation, nervous system of DrosophiZa MeZanogas- Morata et al. have

European Scientific Notes. Volume 36, Number 2,

Science.gov (United States)

1982-02-28

noted that the alleged Symptom-limited exercise testing is gen- immunity of marathon runners to coronary erally accepted as an integral part of any...marathon runners out of coronary patients. risk, and the motivation pf both physician and Wenger emphasized that there is no fixed dose patient...never 45 ESN 36-2 (1982) RESCUE KITE The accuracy of addition of columns of 2-digit numbers was significantly worse at In emergencies at sea, detection

Operações de gênero: o filme XXY (2007 e a produção do corpo e do sexo como “naturais”. Operações de gênero: o filme XXY (2007 e a produção do corpo e do sexo como “naturais” Gender operations: the film XXY (2007 and the constitution of the body and sex as “natural”.

Directory of Open Access Journals (Sweden)

Luciana Fogaça Monteiro

2009-11-01

Full Text Available Inspirados na concepção foucaultiana do corpo como superfície de inscrição da história e apoiados nas contribuições de Judith Butler acerca da materialidade dos corpos, o presente artigo trata de problematizar a forma como concepções normativas e binárias de gênero operam de forma a constituir um campo de inteligibilidade para os sujeitos e seus corpos. Para tanto, utilizamos como ferramenta de análise o filme XXY (2007, que conta parte da história e do drama de Alex, uma jovem intersexual. A proposta é, através da história de Alex, argumentar sobre como o gênero age no processo de naturalização dos corpos, definindo seus contornos e os limites de sua ação e seus prazeres. Desta forma, corpos e sujeitos que não correspondem ao ideal normativo são lançados no domínio daquilo que Butler chamou de “corpos abjetos”. A idéia aqui é, através da história trazida pelo filme, entender como concepções amalgamadas do gênero operam tanto sobre corpos considerados “anormais” quanto os considerados “normais”, afetando a todos. Inspirados na concepção Foucaultiana do corpo como superfície de inscrição da história e apoiados nas contribuições de Judith Butler acerca da materialidade dos corpos, o presente artigo trata de problematizar a forma como concepções normativas e binárias de gênero operam de forma a constituir um campo de inteligibilidade para os sujeitos e seus corpos. Para tanto, utilizamos como ferramenta de análise o filme uruguaio intitulado XXY (2007, que conta parte da história e do drama de Alex, uma adolescente interssexual. A proposta é, através da história de Alex, argumentar sobre como o gênero age no processo de naturalização dos corpos, definindo seus contornos e os limites de sua ação e seus prazeres. Desta forma, corpos e sujeitos que não correspondem ao ideal normativo são lançados no

Number theory III Diophantine geometry

CERN Document Server

1991-01-01

From the reviews of the first printing of this book, published as Volume 60 of the Encyclopaedia of Mathematical Sciences: "Between number theory and geometry there have been several stimulating influences, and this book records of these enterprises. This author, who has been at the centre of such research for many years, is one of the best guides a reader can hope for. The book is full of beautiful results, open questions, stimulating conjectures and suggestions where to look for future developments. This volume bears witness of the broad scope of knowledge of the author, and the influence of several people who have commented on the manuscript before publication ... Although in the series of number theory, this volume is on diophantine geometry, and the reader will notice that algebraic geometry is present in every chapter. ... The style of the book is clear. Ideas are well explained, and the author helps the reader to pass by several technicalities. Reading and rereading this book I noticed that the topics ...

Mayer–Jensen Shell Model and Magic Numbers

Indian Academy of Sciences (India)

Home; Journals; Resonance – Journal of Science Education; Volume 12; Issue 12. Mayer-Jensen Shell Model and Magic Numbers - An Independent Nucleon Model with Spin-Orbit Coupling. R Velusamy. General Article Volume 12 Issue 12 December 2007 pp 12-24 ...

Volume Regulated Channels

DEFF Research Database (Denmark)

Klausen, Thomas Kjær

of volume perturbations evolution have developed system of channels and transporters to tightly control volume homeostasis. In the past decades evidence has been mounting, that the importance of these volume regulated channels and transporters are not restricted to the defense of cellular volume...... but are also essential for a number of physiological processes such as proliferation, controlled cell death, migration and endocrinology. The thesis have been focusing on two Channels, namely the swelling activated Cl- channel (ICl, swell) and the transient receptor potential Vanilloid (TRPV4) channel. I: Cl......- serves a multitude of functions in the mammalian cell, regulating the membrane potential (Em), cell volume, protein activity and the driving force for facilitated transporters giving Cl- and Cl- channels a major potential of regulating cellular function. These functions include control of the cell cycle...

“Nadie escuchó los llantos”. Fútbol, crónica y represión en la novela negra hispánica del XXI

OpenAIRE

García Cames, David

2016-01-01

El fútbol está hecho de héroes pero también de mafias, apuestas, corrupción y violencia. El género negro se ha acercado de forma reiterada a todo aquello que rodea al fútbol como tema y fuente de inspiración. Tras situar algunos de los principales antecedentes, este artículo traza en primer término una panorámica sobre fútbol y novela negra en la literatura hispánica del siglo XXI. Más adelante, se analiza el papel que desempeña el fútbol como motivo desde el que abordar los mecanismos de fun...

A luta pelo direito de dizer a lingua : a linguistica e o purismo linguistico na passagem do seculo XX para o seculo XXI

OpenAIRE

Marina Celia Mendonça

2006-01-01

Resumo: O tema desta pesquisa é a luta pela direito de dizer a língua, entendendo-se por dizer a língua um uso da palavra com poder de dizer, uma publicização do dizer. O interesse central é analisar os embates entre a lingüística e o senso comum que ocorreram no final do século XX e início do século XXI no Brasil, os quais tematizaram principalmente o ensino de norma culta e a restrição ao uso de estrangeirismos no país. Beneficiei-me dos estudos bakhtinianos utilizando o dialogismo como sup...

Shiism: What Students Need to Know. Footnotes. Volume 15, Number 2

Science.gov (United States)

Calvert, John

2010-01-01

This essay is excerpted from the author's book "Divisions within Islam," part of a 10-volume series for middle and high school students on the World of Islam. It provides information on the religious practices and beliefs of Shiism, and its differences with Sunni Islam. It mentions that Shiism is the second-largest denomination of Islam,…

Integers annual volume 2013

CERN Document Server

Landman, Bruce

2014-01-01

""Integers"" is a refereed online journal devoted to research in the area of combinatorial number theory. It publishes original research articles in combinatorics and number theory. This work presents all papers of the 2013 volume in book form.

Geometry of lengths, areas, and volumes two-dimensional spaces, volume 1

CERN Document Server

Cannon, James W

2017-01-01

This is the first of a three volume collection devoted to the geometry, topology, and curvature of 2-dimensional spaces. The collection provides a guided tour through a wide range of topics by one of the twentieth century's masters of geometric topology. The books are accessible to college and graduate students and provide perspective and insight to mathematicians at all levels who are interested in geometry and topology. The first volume begins with length measurement as dominated by the Pythagorean Theorem (three proofs) with application to number theory; areas measured by slicing and scaling, where Archimedes uses the physical weights and balances to calculate spherical volume and is led to the invention of calculus; areas by cut and paste, leading to the Bolyai-Gerwien theorem on squaring polygons; areas by counting, leading to the theory of continued fractions, the efficient rational approximation of real numbers, and Minkowski's theorem on convex bodies; straight-edge and compass constructions, giving c...

Test of arbitrage pricing theory using macroeconomic variables

African Journals Online (AJOL)

Eyerusalem

variables; namely, exchange rate, an index of industrial production, nominal money supply ... Key Words: Arbitrage Pricing, Macroeconomic variables, Stock Market ... or theoretical market indices, where sensitivity to changes in each factor is represented ... Ethiopian Journal of Economics, Volume XXI, No 1, April 2012. 3.

CONVERGENCIA DIGITAL EN LA UNIVERSIDAD COLOMBIANA. DEL SIGLO XX AL XXI

Directory of Open Access Journals (Sweden)

Diana Elvira Soto Arango

2012-01-01

Full Text Available La investigación presenta los orígenes de la convergencia digital desde la tecnología educativa, con la educación programada, la evolución, tendencias teóricas y la prospectiva en el contexto universitario colombiano. El período de estudio se enmarca desde el siglo XX, con la tecnología educativa hasta la prospectiva en el siglo XXI, con el reto de integrar las innovaciones tecnológicas, para optimizar la calidad en las funciones misionales, la competitividad, el reconocimiento y la cobertura estudiantil en el nivel universitario. Por tanto, analizamos algunas experiencias de influencia de la unificación de medios y la forma como se pueden beneficiar las instituciones universitarias dentro del contexto de la legislación colombiana. El método se sustentó en la historia social de la educación con la metodología de la educación comparada. Las estrategias se soportaron en fuentes documentales de legislación, informes y la bibliografía acompañada de proyectos en desarrollo. Se concluye cómo la convergencia digital permite la fusión de las dependencias en Tecnologías de la Información y la Comunicación (TIC de las universidades, para producir contenidos y servicios académicos, cambios en los hábitos de consumo de información por parte de los sujetos sociales y generar actitudes colaborativas y de aprendizaje autónomo, que permiten aportar a los procesos de enseñanza y aprendizaje y a la construcción de conocimiento desde cualquier momento y lugar.

Compendium of Experimental Cetane Numbers

Energy Technology Data Exchange (ETDEWEB)

Yanowitz, Janet [Ecoengineering, Sharonville, OH (United States); Ratcliff, Matthew A. [National Renewable Energy Lab. (NREL), Golden, CO (United States); McCormick, Robert L. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Taylor, J. D. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Murphy, M. J. [Battelle, Columbus, OH (United States)

2017-02-22

This report is an updated version of the 2014 Compendium of Experimental Cetane Number Data and presents a compilation of measured cetane numbers for pure chemical compounds. It includes all available single-compound cetane number data found in the scientific literature up until December 2016 as well as a number of previously unpublished values, most measured over the past decade at the National Renewable Energy Laboratory. This version of the compendium contains cetane values for 496 pure compounds, including 204 hydrocarbons and 292 oxygenates. 176 individual measurements are new to this version of the compendium, all of them collected using ASTM Method D6890, which utilizes an Ignition Quality Tester (IQT) a type of constant-volume combustion chamber. For many compounds, numerous measurements are included, often collected by different researchers using different methods. The text of this document is unchanged from the 2014 version, except for the numbers of compounds in Section 3.1, the Appendices, Table 1. Primary Cetane Number Data Sources and Table 2. Number of Measurements Included in Compendium. Cetane number is a relative ranking of a fuel's autoignition characteristics for use in compression ignition engines. It is based on the amount of time between fuel injection and ignition, also known as ignition delay. The cetane number is typically measured either in a single-cylinder engine or a constant-volume combustion chamber. Values in the previous compendium derived from octane numbers have been removed and replaced with a brief analysis of the correlation between cetane numbers and octane numbers. The discussion on the accuracy and precision of the most commonly used methods for measuring cetane number has been expanded, and the data have been annotated extensively to provide additional information that will help the reader judge the relative reliability of individual results.

El modelo del profesional y el curriculum en la formación del ingeniero del siglo XXI // The model of the professional and the curriculum in the education of the engineer of the century XXI

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Dester Perdomo Pérez

1998-01-01

Full Text Available Si bien es cierto que los cambios que han ocurrido en la ciencia y la tecnología en las últimas décadas han tenido una influenciaimportante en todas las carreras de la ingeniería, los cambios que aún manifiestan los curriculum para la mayoría de lasuniversidades del mundo que se dedican a la formación de ingenieros, no han cambiado de la misma forma, esto en algunasopiniones se debe a que los contenidos de las Ciencias Naturales, las Matemáticas y las propias Ciencias de la Ingeniería,mantienen en lo fundamental contenidos semejantes, pero, es necesario detenerse a analizar como ha cambiado el puesto detrabajo de los ingenieros en los últimos años y como se puede predecir debe cambiar según las perspectivas que anuncia elparadigma de la primera década del siglo XXI. En estos momentos se plantean a los ingenieros, niveles de exigencia superioresen su gestión, soluciones más rápidas, con mayores niveles de fiabilidad y como se dice en las nuevas concepciones de calidadque no solo logren satisfacer las expectativas del usuario, sino que también lo hagan sentir contentos de la inversión querealizó.Estos elementos entre otros aspectos que se analizan hacen necesario montar carreras de ingeniería sobre sistemascomputacionales y no como se pensaba hace unos años, en solo la necesidad de incluir en los curriculum una o dos asignaturasrelacionadas con las técnicas de computo.____________________________________________________________________AbstractEven though it is certain that the occurred changes in the science and technology in the last decades have had an importantinfluence in all engineering careers, the changes that yet express the curriculum for most of the universities in the worlddevoted to the engineers training, they have not changed in the same way, this in some opinions is due to the contents of theNatural Sciences, Mathematics and the own Sciences of the Engineering, maintain the essential contained very similar, but

Brain Tissue Volumes and Perfusion Change with the Number of Optic Neuritis Attacks in Relapsing Neuromyelitis Optica: A Voxel-Based Correlation Study.

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Carlos A Sánchez-Catasús

Full Text Available Recent neuroimaging studies show that brain abnormalities in neuromyelitis optica (NMO are more frequent than earlier described. Yet, more research considering multiple aspects of NMO is necessary to better understand these abnormalities. A clinical feature of relapsing NMO (RNMO is that the incremental disability is attack-related. Therefore, association between the attack-related process and neuroimaging might be expected. On the other hand, the immunopathological analysis of NMO lesions has suggested that CNS microvasculature could be an early disease target, which could alter brain perfusion. Brain tissue volume changes accompanying perfusion alteration could also be expected throughout the attack-related process. The aim of this study was to investigate in RNMO patients, by voxel-based correlation analysis, the assumed associations between regional brain white (WMV and grey matter volumes (GMV and/or perfusion on one side, and the number of optic neuritis (ON attacks, myelitis attacks and/or total attacks on the other side. For this purpose, high resolution T1-weighted MRI and perfusion SPECT imaging were obtained in 15 RNMO patients. The results showed negative regional correlations of WMV, GMV and perfusion with the number of ON attacks, involving important components of the visual system, which could be relevant for the comprehension of incremental visual disability in RNMO. We also found positive regional correlation of perfusion with the number of ON attacks, mostly overlapping the brain area where the WMV showed negative correlation. This provides evidence that brain microvasculature is an early disease target and suggests that perfusion alteration could be important in the development of brain structural abnormalities in RNMO.

Nursing in the era of globalisation: challenges for the 21st century Enfermería en la era de la globalización: retos para el siglo XXI A enfermagem na era da globalização: desafios para o século XXI

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Alcione Leite da Silva

2008-08-01

Full Text Available The purpose of this paper was to reflect about issues related to the processes of globalization and the global impacts on health, pointing out some challenges for Nursing in the twenty-first century. In this sense, the author outlines the forms and trends of globalization in the contemporary world, and the drastic impacts on human health and environment. To respond to the challenges of the globalized world, some ways are indicated, among which, the strengthening of nursing discipline stands out, together with some guidelines for education, research and Nursing care, in a local and global scope.El objetivo de este texto encontrar un momento para reflexionar sobre los aspectos relacionados a los procesos de globalización, así como sobre los impactos en la salud global señalando algunos desafíos para la Enfermería en el siglo XXI. En este sentido, la autora esboza los contornos y tendencias de la globalización en el mundo contemporáneo, así como los drásticos impactos en la salud humana y ambiental. De esta forma, para responder a estos aspectos, señala algunos caminos entre los cuales se destacan el fortalecimiento de Enfermería como disciplina y el establecimiento de directivas en educación, investigación y cuidado en Enfermería, en el ámbito regional y mundial.O objetivo deste texto foi abrir espaço para reflexão acerca de questões relativas aos processos de globalização e impactos na saúde global, apontando alguns desafios para a Enfermagem no século XXI. Nesse sentido, a autora delineia os contornos e tendências da globalização no mundo contemporâneo e os impactos drásticos na saúde humana e no meio ambiente. Para responder aos desafios do mundo globalizado, aponta alguns caminhos, dentre os quais se destacam o fortalecimento da disciplina de Enfermagem e algumas diretrizes para a educação, pesquisa e cuidado de Enfermagem, em âmbito local e global.

Generalization techniques to reduce the number of volume elements for terrain effect calculations in fully analytical gravitational modelling

Science.gov (United States)

Benedek, Judit; Papp, Gábor; Kalmár, János

2018-04-01

Beyond rectangular prism polyhedron, as a discrete volume element, can also be used to model the density distribution inside 3D geological structures. The calculation of the closed formulae given for the gravitational potential and its higher-order derivatives, however, needs twice more runtime than that of the rectangular prism computations. Although the more detailed the better principle is generally accepted it is basically true only for errorless data. As soon as errors are present any forward gravitational calculation from the model is only a possible realization of the true force field on the significance level determined by the errors. So if one really considers the reliability of input data used in the calculations then sometimes the "less" can be equivalent to the "more" in statistical sense. As a consequence the processing time of the related complex formulae can be significantly reduced by the optimization of the number of volume elements based on the accuracy estimates of the input data. New algorithms are proposed to minimize the number of model elements defined both in local and in global coordinate systems. Common gravity field modelling programs generate optimized models for every computation points ( dynamic approach), whereas the static approach provides only one optimized model for all. Based on the static approach two different algorithms were developed. The grid-based algorithm starts with the maximum resolution polyhedral model defined by 3-3 points of each grid cell and generates a new polyhedral surface defined by points selected from the grid. The other algorithm is more general; it works also for irregularly distributed data (scattered points) connected by triangulation. Beyond the description of the optimization schemes some applications of these algorithms in regional and local gravity field modelling are presented too. The efficiency of the static approaches may provide even more than 90% reduction in computation time in favourable

ONR Far East Scienticic Bulletin. Volume 11, Number 4, October-December 1986,

Science.gov (United States)

1986-12-01

pellet, the energy becomes on the order of 50 MJ. If this energy is supplied by a capacitor bank, the volume of the bank becomes gigantic , provided that...ku, Tokyo 171 July International Congress of Kyoto, Japan Endocrine Society 17-23 Endocrinology Japan c/o Seirenkaikan N.A.-F1,5OO-42,000 Kyoto

В галерее SED ARTE открылась выставка "Натюрморт XXI века"

Index Scriptorium Estoniae

2011-01-01

Galeriis SED ARTE avati 6. mail rahvusvaheline kunstinäitus "XXI sajandi natüürmort". Eksponeeritud on 47 kunstniku tööd Eestist, USA-st, Valgevenest, Ukrainast ja Venemaalt. Eestist osalevad Nikolai Kormašov, Olav Maran, Tauno Kangro, Slava Semerikov, Vladimir Anšon, Sergei Inkatov, Sergei Minin ja teised

A non-conformal finite element/finite volume scheme for the non-structured grid-based approximation of low Mach number flows

International Nuclear Information System (INIS)

Ansanay-Alex, G.

2009-01-01

The development of simulation codes aimed at a precise simulation of fires requires a precise approach of flame front phenomena by using very fine grids. The need to take different spatial scale into consideration leads to a local grid refinement and to a discretization with homogeneous grid for computing time and memory purposes. The author reports the approximation of the non-linear convection term, the scalar advection-diffusion in finite volumes, numerical simulations of a flow in a bent tube, of a three-dimensional laminar flame and of a low Mach number an-isotherm flow. Non conformal finite elements are also presented (Rannacher-Turek and Crouzeix-Raviart elements)

A novel CDKL5 mutation in a 47,XXY boy with the early-onset seizure variant of Rett syndrome.

Science.gov (United States)

Sartori, Stefano; Di Rosa, Gabriella; Polli, Roberta; Bettella, Elisa; Tricomi, Giovanni; Tortorella, Gaetano; Murgia, Alessandra

2009-02-01

Mutations of the cyclin-dependent kinase-like 5 gene (CDKL5), reported almost exclusively in female subjects, have been recently found to be the cause of a phenotype overlapping Rett syndrome with early-onset epileptic encephalopathy. We describe the first CDKL5 mutation detected in a male individual with 47,XXY karyotype. This previously unreported, de novo, mutation truncates the large CDKL5 COOH-terminal region, thought to be crucial for the proper sub-cellular localization of the CDKL5 protein. The resulting phenotype is characterized by a severe early-onset epileptic encephalopathy, global developmental delay, and profound intellectual and motor impairment with features reminiscent of Rett syndrome. In light of the data presented we discuss the possible phenotypic modulatory effects of the supernumerary wild type X allele and pattern of X chromosome inactivation and stress the importance of considering the causal involvement of CDKL5 in developmentally delayed males with early-onset seizures. (c) 2009 Wiley-Liss, Inc.

Ion Tentiuc, Contribuţii la istoria şi arheologia spaţiului pruto-nistrean. Siturile de la Durleşti şi Moleşti, Biblioteca Tyragetia, XXI (Chișinău: Muzeul Naţional de Istorie a Moldovei, 2012

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Sergiu Musteata

2013-12-01

Full Text Available Review on book - Ion Tentiuc, Contribuţii la istoria şi arheologia spaţiului pruto-nistrean. Siturile de la Durleşti şi Moleşti, Biblioteca Tyragetia, XXI (Chișinău: Muzeul Naţional de Istorie a Moldovei, 2012

Assessment of area, volume and ELA of glacial systems in Northeast Russia from satellite images in the beginning of XXI century

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M. D. Ananicheva

2014-01-01

Full Text Available The paper compares remotely sensed glacier inventories of the Byrranga, Suntar-Khayata, and Chersky ranges (2003, Koryak Highland and Chukotka mountains (2008 with data from the Inventory of Glaciers of the USSR (1945–1985. We studied changes in glacier area since the Inventory, which was primarily based on aerial photos and field research. The glaciers have been classified by orientation (aspect and morphological type. Overall the glacierization of the Chersky Range (1970–2003, Suntar-Khayata (1945–2003, Byrranga (1967–2003, Koryak Highland (1950–2003 and Meynypilginsky Range (1984–2008 reduced by about 30, 20, 15, 60 (debatable value and 25% respectively due to summer temperature rise. Calculation of glacier volumes for the dates indicated in the USSR Glacier Inventory and satellite imagery: during this period in sum for 5 studied glacier regions the area, covered by ice, has decreased by 225.2 km², and ice volume – by 8.7 Gtg. Construction of spatial patterns (maps of current ELA for 3 different by climate mountain regions – the Suntar-Khayata Mountains– Chersky Range, and Meynypilgynsky Range ( North Far East, showed that despite of retreat of the glaciers, the mean ELA change for the first studied region is not large compared with the data from the Glacier Inventory (100 m , and significant for the second (100–150 m.

Classification of whole wheat flour using a dimensionless number.

Science.gov (United States)

Sehn, Georgia Ane Raquel; Steel, Caroline Joy

2017-11-01

The rheological standards currently used for classifying refined wheat flour for technological quality of bread are also used for whole wheat flours. The aim of this study was to evaluate the rheological and technological behavior of different whole wheat flours, as well as pre-mixes of refined wheat flour with different replacement levels of wheat bran, to develop a dimensionless number that assigns a numerical scale using results of rheological parameters to solve this problem. Through farinograph and extensograph results, most whole wheat flours evaluated presented parameters recommended for bread making, according to the current classification. However, the specific volume of breads elaborated with these flours was not suitable, that is, the rheological analyses were not able to predict the specific volume of pan bread. The development of the Sehn-Steel dimensionless number allowed establishing a classification of whole wheat flours as "suitable" (Sehn-Steel dimensionless number between 62 and 200) or "unsuitable" for the production of pan bread (Sehn-Steel dimensionless number lower than 62). Moreover, an equation that can predict the specific volume of whole pan bread through this dimensionless number was developed.

A Sociologia Digital: um desafio para o século XXI

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Leonardo Fernandes Nascimento

2016-04-01

Full Text Available As características da cultura e da sociedade se alteraram profundamente na medida em que novas formas de comunicação dependentes das tecnologias digitais adquiriram um uso generalizado, modificando o modo como buscamos e produzimos informação. Entretanto, as ciências sociais ainda analisam este fenômeno de maneira tímida, negligenciando os efeitos das tecnologias digitais nas sociedades e, sobretudo, no próprio ofício da sociologia. O presente artigo descreve o modo como as mudanças tecnológicas representam um dos grandes desafios para a sociologia do século XXI, argumentando que é necessário não apenas o aperfeiçoamento de aspectos tecnológicos da pesquisa - como, por exemplo, o domínio de softwares de análise qualitativa e quantitativa e de redes sociais digitais - mas, fundamentalmente, o avanço em termos do significado epistemológico destas tecnologias para a imaginação sociológica. Na primeira seção, é apresentada a proposta da sociologia digital. Em seguida, descreve-se o fenômeno da produção massiva de dados digitais e os desafios que tal contexto coloca para a sociologia. A terceira seção avalia as implicações para a sociologia do uso de softwares. A última seção defende a necessidade urgente de uma atualização teórico-metodológica da sociologia frente à produção massiva de dados digitais. Por fim, argumenta-se que a sobrevivência da sociologia dependerá da instrumentalização tecnológica aliada a uma reflexão diante de um novo horizonte de questões da era digital.

Las habilidades comunicativas, una necesidad formativa del profesional del Siglo XXI.

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Otto Cevallos Mieles

2016-09-01

Full Text Available La educación superior, en estas primeras dos década del siglo XXI, manifiesta las mismas carencias y retos que se heredaron de la centuria anterior, aunque los gobiernos e instituciones de muchos países, han tomado conciencia de la necesidad de los cambios. En el Ecuador se han iniciado transformaciones educativas que generan expectativas en las esferas políticas, económicas y sociales, a partir de cambios curriculares, principalmente en la educación superior, por lo que esta significa para el desarrollo del país. En este contexto, la formación del jurista ha implicado una nueva mirada a sus competencias. La necesidad de expresarse en público, liderar grupos humanos, argumentar, persuadir, fundamentar y convencer, son exigencias que se alcanzan con el desarrollo de las habilidades comunicativas. Debe ser una premisa fundamental para el jurista, el desarrollo de las competencias que le permita manejar con efectividad los componentes verbales, no verbales y paralingüísticos de la comunicación. Se debe concientizar que todo el cuerpo habla. No solo con lo oral se transmiten mensajes que apoyen los argumentos que utiliza en su exposición. El trabajo aborda la necesidad del dominio de los conocimientos y habilidades sobre lo no verbal y lo paralingüístico y su importancia en la comunicación. Se enfatiza en la necesidad del dominio de estas habilidades para una orientación más efectiva durante las situaciones de intercambio en los distintos ámbitos del desempeño de un jurista.

“E se não há o que escolher?”: a representação do intersexo no filme XXY

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Miriam de Souza Rossini

2015-01-01

Full Text Available Com base em Moscovici (2003 e Goffman (1989, este artigo problematiza a representação do intersexo no filme argentino XXY (2007, de Lucia Puenzo. Focam-se as relações sociais e afetivas que a personagem intesex estabelece no decorrer da trama, considerando os elementos da narrativa fílmica (trama, conflito, construção de personagens. A metodologia compreende a etnografia de tela (BALESTRIN, SOARES, 2012, e a análise fílmica (VANOYE, GOLIOT-LÉTÉ, 1994. Buscou-se a junção de procedimentos próprios da pesquisa antropológica e da análise cinematográfica, pois entende-se a linguagem audiovisual como fundamental no processo de instituição de sentidos culturais.

Draft Title 40 CFR 191 compliance certification application for the Waste Isolation Pilot Plant. Volume 4: Appendix BIR Volume 2

International Nuclear Information System (INIS)

1995-01-01

This report consists of the waste stream profile for the WIPP transuranic waste baseline inventory at Lawrence Livermore National Laboratory. The following assumptions/modifications were made by the WTWBIR team in developing the LL waste stream profiles: since only current volumes were provided by LL, the final form volumes were assumed to be the same as the current volumes; the WTWBIR team had to assign identification numbers (IDs) to those LL waste streams not given an identifier by the site, the assigned identification numbers are consistent with the site reported numbers; LL Final Waste Form Groups were modified to be consistent with the nomenclature used in the WTWBID, these changes included word and spelling changes, the assigned Final Waste Form Groups are consistent with the information provided by LL; the volumes for the year 1993 were changed from an annual rate of generation (m 3 /year) to a cumulative value (m 3 )

Mutaciones de los usos del agua en la agricultura española durante la primera década del siglo XXI

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Alfredo Morales Gil

2010-01-01

Full Text Available El análisis de la dinámica de cambio de los regadíos españoles en la primera década del siglo XXI es el objetivo de esta investigación. Éstos se caracterizan, grosso modo, por un continuo incremento de la superficie y la implantación de la modalidad de riego localizado. Éste aumento, a diferencia de décadas anteriores, se debe en gran medida a la expansión que han registrado las superficies ocupadas por olivar, viñedo y algunos cereales, cultivos tradicionalmente de secano, en comarcas que, con anterioridad a estas fechas, no tenían tradición en las prácticas del regadío, frente a la atonía de aprovechamientos como hortalizas o ciertos frutales.

From natural numbers to quaternions

CERN Document Server

Kramer, Jürg

2017-01-01

This textbook offers an invitation to modern algebra through number systems of increasing complexity, beginning with the natural numbers and culminating with Hamilton's quaternions. Along the way, the authors carefully develop the necessary concepts and methods from abstract algebra: monoids, groups, rings, fields, and skew fields. Each chapter ends with an appendix discussing related topics from algebra and number theory, including recent developments reflecting the relevance of the material to current research. The present volume is intended for undergraduate courses in abstract algebra or elementary number theory. The inclusion of exercises with solutions also makes it suitable for self-study and accessible to anyone with an interest in modern algebra and number theory.

The study of the hydrological regime extreme effects of the Caspian Sea during the XX-XXI centuries

Science.gov (United States)

Yaitskaya, Natalia

2016-04-01

The Caspian Sea - the unique largest enclosed inland body of water on Earth. Significant periodic sea level fluctuations are a typical feature of the sea. In the XIX-XX centuries a number of comprehensive studies of the Caspian Sea was carried out. The results are published in the papers, monographs and climatic atlases. But a number of fundamental questions about the features of the hydrological regime of the Caspian Sea is still open: 1. How does the water circulation change during the level variations? 2. What is the effect of heterogeneity of evaporation from the water surface on the formation of the flow field in the conditions of long-term level changes? 3. How does the water salinity regime change depending on the sea level position, water circulation, river flow and different climatic influences? 4. What is the effect of extreme events (multi-hazards) (ice, storms, destruction of the coasts) on coastal infrastructure? In 2016, the project aims to study hydrological regime extreme effects of the Caspian Sea was supported by the Russian Foundation for Basic Research. Within this project all of the above problems will be solved. Geographic information system "Caspian Sea" for the storage and data processing, including a database of primary oceanographic information for the period of instrumental observations (1897-2013), cartographic database (1921-2011) and tools for multidimensional analysis of spatio-temporal information is the basis of the study. The scheme of interconnected hydrodynamic models (Caspian Sea MODel - Ocean Model - Wind wave model) was developed. The important factors are taken into account in the structure of the models: long-term and seasonal dynamics of the sea waves parameters, new long-term values of evaporation from the shallow waters areas of the Caspian Sea, water circulation. Schemes of general seasonal circulation of the Caspian Sea and the Northern Caspian at different positions of the sea level in XX-XXI centuries using

Impacto económico del ocio en el siglo XXI

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Álvarez Alday, Marta

2012-04-01

Full Text Available The twenty-first century has radically changed the concept of leisure. Leisure was conceived to happen only out of working hours. Nowadays we are looking for important experiences during all our lives. The Institute of Leisure Studies of the University of Deusto focuses on the human experience beyond the tangible products. We are witnessing a major cultural change in the developed world where most of the population has turned into a philosophy that could be summed up as “having less, enjoying more”. At the same time, the TIC’S revolution has propitiated a deep change in the field of the cultural leisure through new areas as consumer electronics –with its greatest exponent: video games– and virtual communities. Leisure, as a result, has become a significant economic sector with a brilliant future. We are trying to address in this article its impact in terms of production, employment and income.

El siglo XXI es testigo de una transformación en el concepto de ocio, con un importante aumento de sus actividades con transcendencia económica. Hasta ahora el ocio se consideraba en los períodos de no trabajo y hoy se buscan experiencias importantes a lo largo de todo la vida. El Instituto de Estudios de Ocio de la Universidad de Deusto centra su interés en la experiencia humana más allá de los productos tangibles. Asistimos a un cambio cultural importante en el mundo desarrollado donde la mayor parte de la población se ha volcado en una filosofía que se podría resumir como “tener menos, disfrutar más”. Paralelamente, las TIC’s han propiciado una revolución en el campo del ocio: el ocio digital con manifestaciones como los videojuegos o las comunidades virtuales. Todo ello se traduce en un importante impacto económico en términos de generación de producción, empleo y renta que tratamos de abordar en este artículo.

Environmental Pollution: Noise Pollution - Sonic Boom. Volume I.

Science.gov (United States)

Defense Documentation Center, Alexandria, VA.

The unclassified, annotated bibliography is Volume I of a two-volume set on Noise Pollution - Sonic Boom in a series of scheduled bibliographies on Environmental Pollution. Volume II is Confidential. Corporate author-monitoring agency, subject, title, contract, and report number indexes are included. (Author/JR)

Connecting Numbers with Emotion: Review of Numbers and Nerves: Information, Emotion, and Meaning in a World of Data by Scott Slovic and Paul Slovic (2015

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Samuel L. Tunstall

2017-01-01

Full Text Available Scott Slovic and Paul Slovic (Eds.. Numbers and Nerves: Information, Emotion, and Meaning in a World of Data (Corvallis, OR: Oregon State University Press, 2015. 272 pp. ISBN 978-0-87071-776-5. It is common to view quantitative literacy as reasoning with respect to numbers. In Numbers and Nerves, the contributors to the volume make clear that we should attend not only to how students consciously reason with numbers, but also how our innate biases influence our actions when faced with numbers. Beginning with the concepts of psychic numbing, and then psuedoinefficacy, the contributors to the volume examine how our behaviors when faced with large numbers are often not mathematically rational. I consider the implications of these phenomena for the Numeracy community.

The Shock and Vibration Digest. Volume 18, Number 4

Science.gov (United States)

1986-04-01

the aseismic foundation The Malaysian Rubber Producers’ Research system is shown to offer a number of advantages Association, Hertford, England over... Cinema - tographic Society; National Environmental 22-25 World Cogaress an Compuatiunal Protection Authority of Hungary] Szeged, Hun- Mechanics

El orden mundial a inicios del siglo XXI: orígenes, caracterización y perspectivas futuras

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Juan José Palacios L.

2011-01-01

Full Text Available ¿Cómo está organizado el mundo a principios de la segunda década del siglo xxi? ¿Cuál es la estructura y el carácter del orden geopolítico que rige hoy? ¿De qué elementos está constituido? ¿Cómo se conformó? ¿En qué puede devenir en el futuro? ¿Qué factores propulsan estos procesos? Esas interrogantes han estado en el centro de la problemática y la temática de las relaciones internacionales desde su establecimiento como disciplina y surgen con fuerza hoy en vista de que el esquema internacional que tomó forma después de la Guerra Fría ha sido modificado en la última década por una serie de acontecimientos que han alterado su estructura y dinámica de funcionamiento. El propósito del presente trabajo es realizar un esfuerzo orientado a encontrarles respuesta en referencia al orden que priva actualmente en el mundo y destacar las implicaciones teóricas y prácticas de los hallazgos resultantes.

Achondroplasia with 47, XXY karyotype: a case report of the neonatal diagnosis of an extremely unusual association.

Science.gov (United States)

Ros-Pérez, Purificación; Regidor, Francisco J; Colino, Esmeralda; Martínez-Payo, Cristina; Barroso, Eva; Heath, Karen E

2012-06-29

The association of achondroplasia and Klinefelter syndrome is extremely rare. To date, five cases have been previously reported, all of them diagnosed beyond the postnatal period, and only one was molecularly characterized. We describe the first case of this unusual association diagnosed in the neonatal period, the clinical findings and the molecular studies undertaken. The boy was born at term with clinical and radiological features indicating the diagnosis of achondroplasia or hypochondroplasia combined with the prenatal karyotype of Klinefelter syndrome (47,XXY). Neonatal FGFR3 mutation screening showed that the newborn was heterozygous for the classic achondroplasia G340R mutation. Microsatellite marker analysis showed that the sex chromosome aneuploidy had arisen from a non-disjunction error in paternal meiosis I, with a recombination event in the pseudoautosomal region 1 (PAR1). Specific mutation analysis is appropriate to confirm the clinical diagnosis of achondroplasia for appropriate diagnosis, prognosis, and genetic counseling, especially when the karyotype does not explain the abnormal prenatal sonographic findings. In the present case, a recombination event was observed in the PAR1 region, although recombinational events in paternally derived Klinefelter syndrome cases are much rarer than expected.

Achondroplasia with 47, xxy karyotype: a case report of the neonatal diagnosis of an extremely unusual association

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Ros-Pérez Purificación

2012-06-01

Full Text Available Abstract Background The association of achondroplasia and Klinefelter syndrome is extremely rare. To date, five cases have been previously reported, all of them diagnosed beyond the postnatal period, and only one was molecularly characterized. We describe the first case of this unusual association diagnosed in the neonatal period, the clinical findings and the molecular studies undertaken. Case presentation The boy was born at term with clinical and radiological features indicating the diagnosis of achondroplasia or hypochondroplasia combined with the prenatal karyotype of Klinefelter syndrome (47,XXY. Neonatal FGFR3 mutation screening showed that the newborn was heterozygous for the classic achondroplasia G340R mutation. Microsatellite marker analysis showed that the sex chromosome aneuploidy had arisen from a non-disjunction error in paternal meiosis I, with a recombination event in the pseudoautosomal region 1 (PAR1. Conclusion Specific mutation analysis is appropriate to confirm the clinical diagnosis of achondroplasia for appropriate diagnosis, prognosis, and genetic counseling, especially when the karyotype does not explain the abnormal prenatal sonographic findings. In the present case, a recombination event was observed in the PAR1 region, although recombinational events in paternally derived Klinefelter syndrome cases are much rarer than expected.

Geomorfologia Brasileira: Panorama Geral da Produção Nacional no Início do Século XXI (2001-2005 NOTA TÉCNICA

Directory of Open Access Journals (Sweden)

André Augusto Rodrigues Salgado

2008-10-01

Full Text Available O presente trabalho, através da análise dos artigos publicados em periódicos nacionais e internacionais, traça um panorama da geomorfologia brasileira nos cinco primeiros anos do século XXI. Os resultados obtidos indicam a existência de centros de excelência nacional em algumas das especialidades da geomorfologia. Indicam ainda que a produção brasileira concentra-se no centro-sul do país e que o ramo mais desenvolvido é o da geomorfologia fluvial. Por fim, apontam para o fato de que o amadurecimento do trabalho dos centros nacionais de excelência nos diversos ramos da geomorfologia pode fazer com que a produção geomorfológica brasileira aumente de importância no cenário internacional.

Petroleum supply annual 1998: Volume 1

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-06-01

The ``Petroleum Supply Annual`` (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1998 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. The second volume contains final statistics for each month of 1998, and replaces data previously published in the PSA. The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. 16 figs., 59 tabs.

Petroleum supply annual, 1997. Volume 1

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1997 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. The second volume contains final statistics for each month of 1997, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. 16 figs., 48 tabs.

Petroleum supply annual 1992: Volume 1

International Nuclear Information System (INIS)

1993-01-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1992 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains four sections: Summary Statistics, Detailed Statistics, Refinery Capacity and Oxygenate Capacity each with final annual data. The second volume contains final statistics for each month of 1992, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them

Petroleum supply annual 1998: Volume 1

International Nuclear Information System (INIS)

1999-06-01

The ''Petroleum Supply Annual'' (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1998 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. The second volume contains final statistics for each month of 1998, and replaces data previously published in the PSA. The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. 16 figs., 59 tabs

Petroleum supply annual, 1997. Volume 1

International Nuclear Information System (INIS)

1998-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1997 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. The second volume contains final statistics for each month of 1997, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. 16 figs., 48 tabs

Petroleum supply annual 1994. Volume 1

International Nuclear Information System (INIS)

1995-01-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1994 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains four sections: Summary Statistics, Detailed Statistics, Refinery Capacity, and Oxygenate Capacity each with final annual data. The second volume contains final statistics for each month of 1994, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Below is a description of each section in Volume 1 of the PSA

Neurocognitive outcomes of individuals with a sex chromosome trisomy: XXX, XYY, or XXY: a systematic review*

Science.gov (United States)

LEGGETT, VICTORIA; JACOBS, PATRICIA; NATION, KATE; SCERIF, GAIA; BISHOP, DOROTHY V M

2010-01-01

Aim To review systematically the neurodevelopmental characteristics of individuals with sex chromosome trisomies (SCTs). Method A bibliographic search identified English-language articles on SCTs. The focus was on studies unbiased by clinical referral, with power of at least 0.69 to detect an effect size of 1.0. Results We identified 35 articles on five neonatally identified samples that had adequate power for our review. An additional 11 studies were included where cases had been identified for reasons other than neurodevelopmental concerns. Individuals with an additional X chromosome had mean IQs that were within broadly normal limits but lower than the respective comparison groups, with verbal IQ most affected. Cognitive outcomes were poorest for females with XXX. Males with XYY had normal-range IQs, but all three SCT groups (XXX, XXY, and XYY) had marked difficulties in speech and language, motor skills, and educational achievement. Nevertheless, most adults with SCTs lived independently. Less evidence was available for brain structure and for attention, social, and psychiatric outcomes. Within each group there was much variation. Interpretation Individuals with SCTs are at risk of cognitive and behavioural difficulties. However, the evidence base is slender, and further research is needed to ascertain the nature, severity, and causes of these difficulties in unselected samples. PMID:20059514

Neurocognitive outcomes of individuals with a sex chromosome trisomy: XXX, XYY, or XXY: a systematic review.

Science.gov (United States)

Leggett, Victoria; Jacobs, Patricia; Nation, Kate; Scerif, Gaia; Bishop, Dorothy V M

2010-02-01

To review systematically the neurodevelopmental characteristics of individuals with sex chromosome trisomies (SCTs). A bibliographic search identified English-language articles on SCTs. The focus was on studies unbiased by clinical referral, with power of at least 0.69 to detect an effect size of 1.0. We identified 35 articles on five neonatally identified samples that had adequate power for our review. An additional 11 studies were included where cases had been identified for reasons other than neurodevelopmental concerns. Individuals with an additional X chromosome had mean IQs that were within broadly normal limits but lower than the respective comparison groups, with verbal IQ most affected. Cognitive outcomes were poorest for females with XXX. Males with XYY had normal-range IQs, but all three SCT groups (XXX, XXY, and XYY) had marked difficulties in speech and language, motor skills, and educational achievement. Nevertheless, most adults with SCTs lived independently. Less evidence was available for brain structure and for attention, social, and psychiatric outcomes. Within each group there was much variation. Individuals with SCTs are at risk of cognitive and behavioural difficulties. However, the evidence base is slender, and further research is needed to ascertain the nature, severity, and causes of these difficulties in unselected samples.

Retos de la Bioética en el siglo XXI: "evolución para la evolución". La Ciencia Genómica, como caso biotecnológico paradigmático

Directory of Open Access Journals (Sweden)

Ana Isabel Gómez Córdoba

2008-01-01

Full Text Available La ciencia genómica cambió la evolución de la vida en el planeta, planteando una serie de dilemas éticos, que requieren de la transformación de la bioética para responder a los retos que enfrentara en el Siglo XXI. Este artículo manejará cuatro temas : Tecnociencia, biotecnología y ciencia genómica; bioética; bioética y ciencia genómica; y las relaciones entre la bioética, la ciencia genómica y el bioderecho.

Air and Space Power Journal. Volume 23, Number 3, Fall 2009

Science.gov (United States)

2009-01-01

SP IN E A ir & S p A c e p o w er Jo u r n A l, Fall 2 0 0 9 A Fr p 1 0 -1 2009-3 Outside Cover.indd 1 7/15/09 10:20:39 AM Fall 2009 Volume...Okla­ homa , would capture 18 Air Force installa­ tions, just as moving it to Robbins AFB near Macon, Georgia, would encompass 15 en­ tirely different...km) Apogee (km) Inclination (degrees) IRS -P6 India Gov’t Remote sensing 802 875 98.7 Met Op-A Met Op Sat Multinational Gov’t/Civil Earth Science

Waste retrieval sluicing system campaign number 1 solids volume transferred calculation

International Nuclear Information System (INIS)

BAILEY, J.W.

1999-01-01

This calculation has been prepared to document the volume of sludge removed from tank 241-C-106 during Waste Retrieval Sluicing System (WRSS) Sluicing Campaign No.1. This calculation will be updated, if necessary, to incorporate new data. This calculation supports the declaration of completion of WRSS Campaign No.1 and, as such, is also the documentation for completion of Performance Agreement TWR 1.2.1 , C-106 Sluicing Performance Expectations. It documents the performance of all the appropriate tank 241-C-106 mass transfer verifications, evaluations, and appropriate adjustments discussed in HNF-SD-WM-PROC-021, Chapter 23, ''Process Engineering Calculations for Tank 241-C-106 Sluicing and Retrieval''

Waste retrieval sluicing system campaign number 1 solids volume transferred calculation

International Nuclear Information System (INIS)

BAILEY, J.W.

1999-01-01

This calculation has been prepared to document the volume of sludge removed from tank 241-C-106 during Waste Retrieval Sluicing System (WRSS) Sluicing Campaign No.1. This calculation will be updated, if necessary, to incorporate new data. This calculation supports the declaration of completion of WRSS Campaign No.1 and, as such, is also the documentation for completion of Performance Agreement TWR 1.2.1 C-106 Sluicing Performance Expectations. It documents the performance of all the appropriate tank 241-C-106 mass transfer verifications, evaluations, and appropriate adjustments discussed in HNF-SD-WM-PROC-021, Chapter 23, ''Process Engineering Calculations for Tank 241-C-106 Sluicing and Retrieval''

2016 Gainesville Number Theory Conference

CERN Document Server

Garvan, Frank

2017-01-01

Gathered from the 2016 Gainesville Number Theory Conference honoring Krishna Alladi on his 60th birthday, these proceedings present recent research in number theory. Extensive and detailed, this volume features 40 articles by leading researchers on topics in analytic number theory, probabilistic number theory, irrationality and transcendence, Diophantine analysis, partitions, basic hypergeometric series, and modular forms. Readers will also find detailed discussions of several aspects of the path-breaking work of Srinivasa Ramanujan and its influence on current research. Many of the papers were motivated by Alladi's own research on partitions and q-series as well as his earlier work in number theory.  Alladi is well known for his contributions in number theory and mathematics. His research interests include combinatorics, discrete mathematics, sieve methods, probabilistic and analytic number theory, Diophantine approximations, partitions and q-series identities. Graduate students and researchers will find th...

Correction volumes and densities in Vitrea Program

International Nuclear Information System (INIS)

Abrantes, Marcos E.S.; Oliveira, A.H. de

2014-01-01

Introduction: with the increased use of 3D reconstruction techniques to assist in diagnosis, Vitrea® program is widely used. To use this program you need to know the correction values to generate the volumes and number of real CT human tissues. Objective: provide correction values for volumes and number of CT, read the Vitrea program, of the tissues generated by DICOM images from CT. Methodology: this study used a PMMA chest phantom to generate the DICOM images on a scanner. To check the calibration of the scanner was used Catphan phantom and compared the manufacturer of the values associated with its straight linearity. Results: the volume of PMMA phantom was of 11166.58 cm³ and CT number (123.5 ± 33.4) UH. For the volume found in Vitrea program, according to the structures of interest, were 11897.29 cm 3 , 10901.65 cm³, 16906.49 cm 3 and 11848.34 cm³ and corrections values are -6.14%, + 2.43% -6.94% -5.75% respectively for the tissues: lung, bone, soft and full. For the CT numbers found in this program were (97.60 ± 58.9) UH, (72.00 ± 176.00) UH, (143.20 ± 19.50) UH and (31.90 ± 239,10) UH and corrections of + 26.54%, + 71.53%, -13.64% and 387.15% respectively for tissues: lung, bone, soft and full. Conclusion: the procedure performed can be used in other 3D reconstruction programs and where there are tools to reading CT number, observing the necessary corrections

Ovarian volume throughout life

DEFF Research Database (Denmark)

Kelsey, Thomas W; Dodwell, Sarah K; Wilkinson, A Graham

2013-01-01

conception to 82 years of age. This model shows that 69% of the variation in ovarian volume is due to age alone. We have shown that in the average case ovarian volume rises from 0.7 mL (95% CI 0.4-1.1 mL) at 2 years of age to a peak of 7.7 mL (95% CI 6.5-9.2 mL) at 20 years of age with a subsequent decline...... to about 2.8 mL (95% CI 2.7-2.9 mL) at the menopause and smaller volumes thereafter. Our model allows us to generate normal values and ranges for ovarian volume throughout life. This is the first validated normative model of ovarian volume from conception to old age; it will be of use in the diagnosis......The measurement of ovarian volume has been shown to be a useful indirect indicator of the ovarian reserve in women of reproductive age, in the diagnosis and management of a number of disorders of puberty and adult reproductive function, and is under investigation as a screening tool for ovarian...

Distributions of hit-numbers in single targets

Energy Technology Data Exchange (ETDEWEB)

Fowler, J F [Postgraduate Medical School, Hammersmith Hospital, London (United Kingdom)

1966-07-01

Very general models can be proposed for relating the surviving proportion of an irradiated population of cells or bacteria to the absorbed dose, but if the number of free parameters is large the model can never be tested experimentally (Zimmer; Zirkie; Tobias). A relatively simple model is therefore proposed here, based on the physical facts of energy deposition in small volumes which are currently under active investigation (Rossi), and on cell-survival experiments over a wide range of LET (e.g. Barendsen et al.; Barendsen). It is not suggested that the model is correct or final, but only that its shortcomings should be demonstrated by comparison with experimental results before more complicated models are worth pursuing. It is basically a multihit model applied first to a single target volume, but also applicable to the situation where only one out of many potential target volumes has to be inactivated to kill the organism. It can be extended to two or more target volumes if necessary. Emphasis is placed upon the amount of energy locally deposited in certain sensitive volumes called 'target volumes'.

American Foreign Policy: Regional Perspectives

Science.gov (United States)

2009-05-15

United States does not have a problem with Is- lam other than it does not understand how religion , nationalism, politics, and resistance fit into each...Cooperativa para el Poder Naval en el Siglo XXI, the first volume to be published by the Naval War College Press in a language other than English. 297 PARTICIPANT BIOGRAPHIES

Changes in hippocampal volume and neuron number co-occur with memory decline in old homing pigeons (Columba livia).

Science.gov (United States)

Coppola, Vincent J; Kanyok, Nate; Schreiber, Austin J; Flaim, Mary E; Bingman, Verner P

2016-05-01

The mammalian hippocampus is particularly susceptible to age-related structural changes, which have been used to explain, in part, age-related memory decline. These changes are generally characterized by atrophy (e.g., a decrease in volume and number of synaptic contacts). Recent studies have reported age-related spatial memory deficits in older pigeons similar to those seen in older mammals. However, to date, little is known about any co-occurring changes in the aging avian hippocampal formation (HF). In the current study, it was found that the HF of older pigeons was actually larger and contained more neurons than the HF of younger pigeons, a finding that suggests that the pattern of structural changes during aging in the avian HF is different from that seen in the mammalian hippocampus. A working hypothesis for relating the observed structural changes with spatial-cognitive decline is offered. Copyright © 2016 Elsevier Inc. All rights reserved.

Conferences on Combinatorial and Additive Number Theory

CERN Document Server

2014-01-01

This proceedings volume is based on papers presented at the Workshops on Combinatorial and Additive Number Theory (CANT), which were held at the Graduate Center of the City University of New York in 2011 and 2012. The goal of the workshops is to survey recent progress in combinatorial number theory and related parts of mathematics. The workshop attracts researchers and students who discuss the state-of-the-art, open problems, and future challenges in number theory.

As Instituições de Ensino Superior no Brasil: desafios e perspectivas para os gestores do século XXI - fundamentos em Pedro Demo e Pierre Bourdieu

Directory of Open Access Journals (Sweden)

Angela Maria Andrade Marinho de Souza

2012-01-01

Full Text Available http://dx.doi.org/10.5007/1983-4535.2012v5n1p28   Este artigo trata dos desafios da Educação Superior Brasileira – fundamentos em  Demo  e Bourdieu  referentes em especial a Universidade do século XXI. Apresenta o funcionamento deste nível de ensino, de forma dialética, tendo em vista os gargalos que dificultam fazer pesquisa e educação no Brasil, especialmente, que tenham resultados positivos para a sociedade evidenciando o compromisso social a partir de suas reais finalidades. Parte-se de um aporte teórico bibliográfico, cuja análise objetiva chamar a atenção dos gestores acadêmicos e demais profissionais da Educação Superior, para a necessidade urgente de pensar a educação superior do século XXI, a função dos docentes e o perfil da Universidade, considerando os pressupostos do Paradigma Crítico. É importante discutir os rumos das Universidades Brasileiras e a formação dos novos profissionais. Investir em pesquisa e educação é investir em desenvolvimento. Daí o embate da comunidade científica em garantir a existência de um Conselho Deliberativo com a participação de todas as entidades científicas nacionais, para definir a destinação dos recursos e os rumos que a Universidade tomará neste terceiro milênio. A pesquisa  que evidencie compromisso social com o seu entorno para se institucionalizar de forma adequada, requer conexão com o ensino e com a extensão.

Medical Surveillance Monthly Report (MSMR). Volume 14, Number 2, May 2007

Science.gov (United States)

2007-05-01

portable insulated food containers. Desserts and green salads were prepackaged in individual and large serving sizes, respectively. Soldiers could...MONITOR’S ACRONYM(S) 11. SPONSOR/MONITOR’S REPORT NUMBER(S) 12. DISTRIBUTION/AVAILABILITY STATEMENT Approved for public release ; distribution unlimited...which includes post-traumatic stress disorder) (Table 2). Among these cohorts, service members who redeployed between January and June 2003

Volume dose of organs at risk in the irradiated volume

International Nuclear Information System (INIS)

Hishikawa, Yoshio; Tanaka, Shinichi; Miura, Takashi

1984-01-01

Absorbed dose of organs at risk in the 50% irradiated volume needs to be carefully monitored because there is high risk of radiation injury. This paper reports on the histogram of threedimensional volume dose of organs at risk, which is obtained by computer calculation of CT scans. In order to obtain this histogram, CT is first performed in the irradiation field. The dose in each pixel is then examined by the computer as to each slice. After the pixels of all slices in the organ at risk of the irradiated field are classified according to the doses, the number of pixels in the same dose class is counted. The result is expressed in a histogram. The histogram can show the differences of influence to organs at risk given by various radiation treatment techniques. Total volume dose of organs at risk after radiotherapy can also be obtained by integration of each dose of different treatment techniques. (author)

United States Air Force Research Initiation Program for 1988. Volume 3

Science.gov (United States)

1990-04-01

Prof. William M. Grissom Modeling in a Pintle Injector Spray 210-9MG-069 13 Multiple Scattering in Solid Fuel Dr. William Sutton (1985) Rocket Plumes...Part II) 210-9MG-054 40 Sodium as an Electrode for Choroaluminate Dr. Tammy J. Melton Melts 210-9MG-098 xxi 41 Report Not Available at this Time Dr...Bone-Marrow by Lymphokine Dr. Parsottam J. Patel (1986) Activated Killer Cells (LAK-Cells) 760-6MG-131 134 Transcutaneous Oxygen Delivery Dr. William Z

United States Air Force Research Initiation Program for 1988. Volume 1

Science.gov (United States)

1990-04-01

Size Distributions and Combustion Prof. William M. Grissom Modeling in a Pintle Injector Spray 210-9MG-069 13 Multiple Scattering in Solid Fuel Dr...Nitrite (Part II) 210-9MG-054 40 Sodium as an Electrode for Chloroaluminate Dr. Tammy J. Melton Melts 210-9MG-098 xxi 41 Report Not Available at this...Patel (1986) Activated Killer Cells (LAK-Cells) 760-6MG-131 134 Transcutaneous Oxygen Delivery Dr. William Z. Plachy 210-9MG-042 135 Report Not

United States Air Force Research Initiation Program for 1988. Volume 2

Science.gov (United States)

1990-04-01

Combustion Prof. William M. Grissom Modeling in a Pintle Injector Spray 210-9MG-069 13 Multiple Scattering in Solid Fuel Dr. William Sutton (1985...054 40 Sodium as an Electrode for Chloroaluminate Dr. Tammy J. Melton Melts 210-9MG-098 xxi 41 Report Not Available at this Time Dr. Patricia L...Activated Killer Cells (LAK-Cells) 760-6MG-131 134 Transcutaneous Oxygen Delivery Dr. William Z. Plachy 210-9MG-042 135 Report Not Acceptable at this Time

Age dependent white matter lesions and brain volume changes in healthy volunteers

DEFF Research Database (Denmark)

Christiansen, P; Larsson, H B; Thomsen, C

1994-01-01

The brain of 142 healthy volunteers aged 21 to 80 years were investigated using MR imaging. The number and size of the white matter hyperintensity lesions (WMHL) in the cerebral hemispheres were determined. Furthermore, the volume of the cerebral hemispheres and of the lateral ventricles was meas......The brain of 142 healthy volunteers aged 21 to 80 years were investigated using MR imaging. The number and size of the white matter hyperintensity lesions (WMHL) in the cerebral hemispheres were determined. Furthermore, the volume of the cerebral hemispheres and of the lateral ventricles...... was measured. An almost linear increase in the number of volunteers with WMHL was seen with aging for males and females. With aging a significant decrease in the volume of the cerebral hemispheres was found for males, and a significant increase in the volume of the lateral ventricles was seen for both males...... and females. Our results suggest that with aging central atrophy increases more (relatively) than cortical atrophy. No correlation was found between the decreasing volume of the cerebral hemispheres and the increasing number and size of WMHL, nor between the increasing volume of the lateral ventricles...

Defense AR Journal. Volume 18, Number 1, Issue 57

Science.gov (United States)

2011-01-01

Manual of the American Psychological Association ( 6th Edition ). For all other style questions, please refer to the Chicago Manual of Style (15th Edition ...112 Format Please submit your manuscript with references in APA format (author- date-page number form of citation) as outlined in the Publication ...Report Documentation Page Form ApprovedOMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average 1 hour

Military Review. Volume 88, Number 6, November-December 2008

Science.gov (United States)

2008-12-01

provided jobs for unemployed males who might otherwise have taken up arms against the coalition. it stimulated the local economy and led to the...in addition, as access to capital for entrepreneurs creates economic activity, it reduces the number of unemployed men who might otherwise become...Qaeda), juxtaposed above, are emblematic of the psychic gulf be- tween world views, ancient and modern, religious and secular, East and West. Today

Modificações no consumo de bebidas de adolescentes de escolas públicas na primeira década do século XXI

Directory of Open Access Journals (Sweden)

Luana Silva Monteiro

Full Text Available RESUMO: Objetivo: Avaliar mudanças no consumo de bebidas em adolescentes entre 2003 e 2008. Métodos: Foram realizados dois estudos transversais de base escolar com estudantes de 12 a 19 anos de idade de escolas públicas de Niterói, Rio de Janeiro. Dados de três registros alimentares foram utilizados para estimar o consumo médio diário, de dias de semana e de final de semana (volume e a contribuição para a ingestão diária de energia de leite, bebidas à base de leite, bebidas com adição de açúcar, suco de frutas frescas, bebidas cafeinadas e bebidas alcoólicas. Foram utilizados Modelos Lineares Generalizados (GLM para estimar médias ajustadas por idade e as diferenças nos estimadores segundo os dias de semana. Resultados: Foram investigados 433 adolescentes em 2003 e 510 foram investigados em 2008. A prevalência de excesso de peso foi de 17% em 2003 e de 22% em 2008 (p > 0,05. O leite foi a bebida mais consumida, sendo relatada por 89% dos adolescentes, seguido dos refrigerantes (75%. De maneira geral, no período de cinco anos, verificou-se aumento da prevalência de consumo de bebidas alcoólicas, bebidas à base de xarope de guaraná e sucos processados, especialmente nos dias de semana. O refrigerante foi a bebida que mais contribuiu para o consumo energético total, correspondendo, em média, a 4% da ingestão energética diária. Conclusão: As principais mudanças no perfil de consumo de bebidas entre os adolescentes de Niterói na primeira década do século XXI foram a tendência para redução do consumo de leite e o aumento no consumo das bebidas processadas e das bebidas alcoólicas.

Poetics of communal praxis: transcendences of the policies of the Bolivarian revolution in life of some Creole and indigenous communitarian intellectuals facing the challenges of “Socialism of the XXI Century”

Directory of Open Access Journals (Sweden)

Benjamín Eduardo Martínez Hernández

2014-05-01

Full Text Available The topics of LASA 2013 proposed discuss current leftist governments in Latin America, and if we see corresponding changes between consciousness and culture. The commitment of the government of Hugo Chavez for "socialism of the XXI century" has had in the recent history of Venezuela many difficulties. However, community dynamics illustrate the real impact of government policies on cultural transformations of the Venezuelan people worthy interpreted as the foundation of the Bolivarian Revolution, often silenced by the dominant logics that resist. This paper explores such logic from the oral testimony of some Indians and Creoles, as part of the achievements and challenges of the "Socialism of the XXI Century". Normal 0 21 false false false ES X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;}

Optical vortex discrimination with a transmission volume hologram

Energy Technology Data Exchange (ETDEWEB)

Gruneisen, Mark T [Air Force Research Laboratory, Directed Energy Directorate, Kirtland AFB, NM 87117 (United States); Dymale, Raymond C; Stoltenberg, Kurt E [Boeing Company, PO Box 5670, Albuquerque, NM 87185 (United States); Steinhoff, Nicholas [Optical Sciences Company, 1341 S Sunkist St., Anaheim, CA 92806 (United States)

2011-08-15

Transmissive volume holograms are considered as mode-selective optical elements for the de-multiplexing and detecting of optical vortex modes according to the topological charge or mode number. Diffraction of vortex modes by a fundamental mode hologram is modeled using a physical optics model that treats the volume hologram as an angle-dependent transfer function. Diffracted irradiance profiles and diffraction efficiencies are calculated numerically as a function of the incident mode number. The results of the model are compared with experimental results obtained with volume holograms of fundamental and higher-order vortex modes. When considered as a function of detuning between the incident and recorded mode numbers, the measured diffraction efficiencies are found to be invariant with respect to the recorded mode number, provided that the order difference remains unchanged, and in close agreement with the predictions of the model. Measurements are made with a 1.3 mm thick permanent photo-thermo-refractive glass hologram and a 9 mm thick re-writable photorefractive lithium niobate hologram. A liquid-crystal spatial light modulator generates the vortex modes used to record and read the holograms. The results indicate that a simple volume hologram can discriminate between vortex modes; however, adjacent mode discrimination with low crosstalk would require a very thick hologram. Furthermore, broadening of the vortex angular spectrum, due to diffraction at a finite aperture, can adversely affect diffraction efficiencies.

Optical vortex discrimination with a transmission volume hologram

International Nuclear Information System (INIS)

Gruneisen, Mark T; Dymale, Raymond C; Stoltenberg, Kurt E; Steinhoff, Nicholas

2011-01-01

Transmissive volume holograms are considered as mode-selective optical elements for the de-multiplexing and detecting of optical vortex modes according to the topological charge or mode number. Diffraction of vortex modes by a fundamental mode hologram is modeled using a physical optics model that treats the volume hologram as an angle-dependent transfer function. Diffracted irradiance profiles and diffraction efficiencies are calculated numerically as a function of the incident mode number. The results of the model are compared with experimental results obtained with volume holograms of fundamental and higher-order vortex modes. When considered as a function of detuning between the incident and recorded mode numbers, the measured diffraction efficiencies are found to be invariant with respect to the recorded mode number, provided that the order difference remains unchanged, and in close agreement with the predictions of the model. Measurements are made with a 1.3 mm thick permanent photo-thermo-refractive glass hologram and a 9 mm thick re-writable photorefractive lithium niobate hologram. A liquid-crystal spatial light modulator generates the vortex modes used to record and read the holograms. The results indicate that a simple volume hologram can discriminate between vortex modes; however, adjacent mode discrimination with low crosstalk would require a very thick hologram. Furthermore, broadening of the vortex angular spectrum, due to diffraction at a finite aperture, can adversely affect diffraction efficiencies.

Variable volume combustor with a conical liner support

Science.gov (United States)

Johnson, Thomas Edward; McConnaughhay, Johnie Franklin; Keener, Chrisophter Paul; Ostebee, Heath Michael

2017-06-27

The present application provides a variable volume combustor for use with a gas turbine engine. The variable volume combustor may include a liner, a number of micro-mixer fuel nozzles positioned within the liner, and a conical liner support supporting the liner.

Assistência odontológica pública e suplementar no município de São Paulo na primeira década do século XXI Private and public dental care in the city of São Paulo in the first decade of the XXI century

Directory of Open Access Journals (Sweden)

Marco Antonio Manfredini

2012-06-01

Full Text Available Na primeira década do século XXI registra-se a ocorrência de dois movimentos importantes no âmbito da assistência odontológica pública e privada no Brasil: a entrada da saúde bucal na agenda de prioridades políticas do governo federal e o vigoroso crescimento na oferta de serviços odontológicos suplementares. Analisou-se a ocorrência desses fenômenos no município de São Paulo, mediante a busca de dados nos documentos oficiais e nas bases eletrônicas da Prefeitura Municipal de São Paulo, do Ministério da Saúde e da Agência Nacional de Saúde Suplementar (ANS, além de consulta à literatura científica. No período estudado, de janeiro de 2000 a dezembro de 2009, com base em indicadores como a Cobertura de Primeira Consulta Odontológica Programática e a Cobertura Populacional Potencial, verificaram-se percentuais que caracterizam baixa assistência pública e uma situação de grande distanciamento do princípio constitucional do acesso universal aos cuidados odontológicos. O crescimento do número de beneficiários de serviços suplementares, por meio de planos exclusivamente odontológicos e de outros planos foi expressivo em igual período, correspondendo a uma importante ampliação da cobertura populacional nesta modalidade assistencial. Constata-se que, comparativamente ao quadro geral nacional, a situação do município de São Paulo revela precariedade no acesso à assistência odontológica pública, com reduzida oferta de serviços a adultos e idosos. Considerando, ainda, as limitações do mercado de serviços suplementares para prover assistência odontológica para todos os brasileiros, reforça-se a necessidade de continuidade e expansão do Brasil Sorridente, que é a expressão programática da Política Nacional de Saúde Bucal.Two concomitant movements occur in the first decade of the XXI century within the private and public dental services in Brazil: the entrance of oral health on the agenda of

Evolution in Intensity and Frequency of Extreme Events of Precipitation in Northeast Region and Brazilian Amazon in XXI Century

Science.gov (United States)

Fonseca, P. M.; Veiga, J. A.; Correia, F. S.; Brito, A. L.

2013-05-01

The aim of this research was evaluate changes in frequency and intensity of extreme events of precipitation in Brazilian Amazon and Northeast Region, doubling CO2 concentration in agreement of IPCC A2 emissions scenarios (Nakicenovic et al., 2001). For this evaluation was used ETA model (Chou et al., 2011), forced with CCSM3 Global model data (Meehl, 2006) to run 4 experiments, only for January, February and March: 1980-1990, 2000-2010, 2040-2050 and 2090-2100. Using the first decade as reference (1980-1990), was evaluated changes occurred in following decades, with a methodology to classify extremes events adapted from Frich (2002) and Gao (2006). Higher was the class, more intense is the event. An increase of 25% was observed in total precipitation in Brazilian Amazon for the end of XXI century and 12% for extreme events type 1, 9% for events type 2 and 10% for type 3. By the other hand, a 17% decrease of precipitation in Brazilian Northeast was observed, and a pronounced decay of 24% and 15% in extreme events contribution type 1 and 2 to total amount of precipitation, respectively. The difference between total normal type events was positive in this three decades compared with reference decade 1980-1990, varying positively from 4 to 6 thousand events included in normality by decade, these events was decreased in your majority of Class 1 events, which presented a decay of at least 3.500 events by each decade. This suggests an intensification of extreme events, considering that the amount of precipitation by class increased, and the number of events by class decreased. To Northeast region, an increasing in 9% of contribution to events type 3 class was observed, as well as in the frequency of this type of events (about of 700 more events). Major decreasing in number of classes extreme events occur in 2000-2010, to classes 1 and 3, with 7,2 and 5,6%, and by the end of century in class 3, with 4,5%. For the three analyzed decades a total decrease of 8.400 events was

Military Review. Volume 85, Number 1, January-February 2008

Science.gov (United States)

2008-02-01

throughout the ancient world; the Mesopotamian, egyptian , Chinese, Greek, and roman civilizations developed laws and customs to legitimize and regulate...take place at his tomb .28 Corruption versus terrorism. escobar’s effec- tiveness in co-opting large numbers of people suggests that narco-corruption...much as the Dis- trict of Columbia is not a part of any state. Americans err when they think of Iraq as a uni- fied state. As one Egyptian diplomat

Stereological estimation of the mean and variance of nuclear volume from vertical sections

DEFF Research Database (Denmark)

Sørensen, Flemming Brandt

1991-01-01

The application of assumption-free, unbiased stereological techniques for estimation of the volume-weighted mean nuclear volume, nuclear vv, from vertical sections of benign and malignant nuclear aggregates in melanocytic skin tumours is described. Combining sampling of nuclei with uniform...... probability in a physical disector and Cavalieri's direct estimator of volume, the unbiased, number-weighted mean nuclear volume, nuclear vN, of the same benign and malignant nuclear populations is also estimated. Having obtained estimates of nuclear volume in both the volume- and number distribution...... to the larger malignant nuclei. Finally, the variance in the volume distribution of nuclear volume is estimated by shape-independent estimates of the volume-weighted second moment of the nuclear volume, vv2, using both a manual and a computer-assisted approach. The working procedure for the description of 3-D...

DINÂMICA ECONÔMICA E REDE URBANA CEARENSE NO INÍCIO DO SÉCULO XXI

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Fernando Cezar de Macedo

2012-03-01

Full Text Available Este artigo discute a dinâmica econômica e a evolução da rede urbana do Ceará nesta primeira década do século XXI. Além das heranças seculares, toma como elemento decisivo na estruturação do espaço cearense as diversas políticas implementadas pelos governos estaduais que articularam a economia cearense aos movimentos das economias brasileira e internacional, influenciando sua organização espacial. Mostra que foi no período colonial que a capital cearense tornou-se principal centro urbano do estado graças à centralização dos excedentes das atividades sertanejas sustentadas no binômio pecuária-algodão. Posteriormente, apresenta as transformações verificadas na fase de integração do mercado nacional, quando se concentraram os principais investimentos na cidade de Fortaleza. Dada essa grande concentração, observam-se esforços de descentralização da atividade produtiva, a partir de uma ação deliberada do governo do estado, através dos instrumentos da guerra fiscal que atraíram para o interior importantes investimentos, sem, contudo, reduzir as disparidades intraestaduais ainda fortemente marcadas pelo predomínio metropolitano. Não obstante, surgem focos dinâmicos na economia cearense, contribuindo para uma maior diferenciação do interior do estado.

Health for all in the twenty-first century Salud para todos en el siglo XXI

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1998-08-01

Full Text Available Salud para todos en el siglo XXI renueva el compromiso con el concepto y la visión de salud para todos, tal como se definió en 1977, cuando la 30a Asamblea Mundial de la Salud resolvió que el principal objetivo social de los gobiernos y de la OMS en los decenios venideros debería ser "alcanzar para todos los ciudadanos del mundo en el año 2000 un grado de salud que les permita llevar una vida social y económicamente productiva". Este proceso, que se interpreta de forma diferente según las características sociales, económicas y de salud de cada país, ha contribuido a la mejora paulatina del acceso a la atención primaria de salud, a la disminución mundial de la morbilidad y la mortalidad infantiles y a un aumento considerable de la esperanza de vida. Aun así, todavía hay muchos problemas que resolver. Desde 1990, el sistema de las Naciones Unidas ha convocado nueve conferencias mundiales en las que se han acordado por consenso universal las prioridades de un programa de trabajo para el futuro, incluido el apoyo pleno del logro de salud para todos. Los nuevos enfoques giran en torno al desarrollo centrado en el ser humano, lo cual comprende erradicar la pobreza, satisfacer las necesidades básicas y proteger los derechos humanos, incluido el de la salud.

Stereological analysis of neuron, glial and endothelial cell numbers in the human amygdaloid complex.

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María García-Amado

Full Text Available Cell number alterations in the amygdaloid complex (AC might coincide with neurological and psychiatric pathologies with anxiety imbalances as well as with changes in brain functionality during aging. This stereological study focused on estimating, in samples from 7 control individuals aged 20 to 75 years old, the number and density of neurons, glia and endothelial cells in the entire AC and in its 5 nuclear groups (including the basolateral (BL, corticomedial and central groups, 5 nuclei and 13 nuclear subdivisions. The volume and total cell number in these territories were determined on Nissl-stained sections with the Cavalieri principle and the optical fractionator. The AC mean volume was 956 mm(3 and mean cell numbers (x10(6 were: 15.3 neurons, 60 glial cells and 16.8 endothelial cells. The numbers of endothelial cells and neurons were similar in each AC region and were one fourth the number of glial cells. Analysis of the influence of the individuals' age at death on volume, cell number and density in each of these 24 AC regions suggested that aging does not affect regional size or the amount of glial cells, but that neuron and endothelial cell numbers respectively tended to decrease and increase in territories such as AC or BL. These accurate stereological measures of volume and total cell numbers and densities in the AC of control individuals could serve as appropriate reference values to evaluate subtle alterations in this structure in pathological conditions.

Stereological analysis of neuron, glial and endothelial cell numbers in the human amygdaloid complex.

Science.gov (United States)

García-Amado, María; Prensa, Lucía

2012-01-01

Cell number alterations in the amygdaloid complex (AC) might coincide with neurological and psychiatric pathologies with anxiety imbalances as well as with changes in brain functionality during aging. This stereological study focused on estimating, in samples from 7 control individuals aged 20 to 75 years old, the number and density of neurons, glia and endothelial cells in the entire AC and in its 5 nuclear groups (including the basolateral (BL), corticomedial and central groups), 5 nuclei and 13 nuclear subdivisions. The volume and total cell number in these territories were determined on Nissl-stained sections with the Cavalieri principle and the optical fractionator. The AC mean volume was 956 mm(3) and mean cell numbers (x10(6)) were: 15.3 neurons, 60 glial cells and 16.8 endothelial cells. The numbers of endothelial cells and neurons were similar in each AC region and were one fourth the number of glial cells. Analysis of the influence of the individuals' age at death on volume, cell number and density in each of these 24 AC regions suggested that aging does not affect regional size or the amount of glial cells, but that neuron and endothelial cell numbers respectively tended to decrease and increase in territories such as AC or BL. These accurate stereological measures of volume and total cell numbers and densities in the AC of control individuals could serve as appropriate reference values to evaluate subtle alterations in this structure in pathological conditions.

The Activities of UN Specialized Agencies in the Area of Disaster Relief of Population and Territories against Disasters in the beginning of the XXI century

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Aleksey Vladimirovich Kuvshinov

2016-12-01

Full Text Available The article deals with the analysis of the structure and main directions of the activities of UN specialized agencies as well as other international organizations and entities such as ICDO aimed at the organization of the measures for disaster relief and civil defence. The urgency of the article is in the fact that it is for the first time in Russian academic literature devoted to this topic with the specific examples of conducting of such measures. The main conclusions of the article stresses that the specialized U.N. agencies and other international and national entities have already demonstrated the urgent nature and efficiency of providing disaster relief to affected countries and population in the beginning of the XXI century but they should upgrade their potential in that regard in the coming years.

Leading Edge. Volume 7, Number 3. Systems Safety Engineering

Science.gov (United States)

2010-01-01

foods were not always safe to eat given the sanitary conditions of the day. In 1943, the psychologist Abraham Maslow proposed a five-level... hierarchy of basic human needs, and safety was number two on this list. System safety is a specialized and formalized extension of our in- herent drive for...factors, hazards, mishaps, and ef- fects. The following is an example of each element within the hierarchy : An exposed sharp edge in a relay cabi- net

Coast Guard Proceedings. Volume 68, Number 1, Spring 2011

Science.gov (United States)

2011-01-01

largest mar- ijuana seizure by a USCG buoy tender, CGC Aspen intercepted a “go-fast” vessel loaded with eight tons of marijuana . · Fisheries Enforcement...recommended routes; · amplifying vessel static and voyage-related data; · VTS or synthetic targets (vessels without AIS); · pertinent time-critical dynamic...Used by a ship to report the number of persons on board (e.g., on request by a competent authority). VTS-generated/ synthetic targets Used to transmit

Foundations of analysis over surreal number fields

CERN Document Server

Alling, NL

1987-01-01

In this volume, a tower of surreal number fields is defined, each being a real-closed field having a canonical formal power series structure and many other higher order properties. Formal versions of such theorems as the Implicit Function Theorem hold over such fields. The Main Theorem states that every formal power series in a finite number of variables over a surreal field has a positive radius of hyper-convergence within which it may be evaluated. Analytic functions of several surreal and surcomplex variables can then be defined and studied. Some first results in the one variable case are derived. A primer on Conway''s field of surreal numbers is also given. Throughout the manuscript, great efforts have been made to make the volume fairly self-contained. Much exposition is given. Many references are cited. While experts may want to turn quickly to new results, students should be able to find the explanation of many elementary points of interest. On the other hand, many new results are given, and much mathe...

Finite Volumes for Complex Applications VII

CERN Document Server

Ohlberger, Mario; Rohde, Christian

2014-01-01

The methods considered in the 7th conference on "Finite Volumes for Complex Applications" (Berlin, June 2014) have properties which offer distinct advantages for a number of applications. The second volume of the proceedings covers reviewed contributions reporting successful applications in the fields of fluid dynamics, magnetohydrodynamics, structural analysis, nuclear physics, semiconductor theory and other topics. The finite volume method in its various forms is a space discretization technique for partial differential equations based on the fundamental physical principle of conservation. Recent decades have brought significant success in the theoretical understanding of the method. Many finite volume methods preserve further qualitative or asymptotic properties, including maximum principles, dissipativity, monotone decay of free energy, and asymptotic stability. Due to these properties, finite volume methods belong to the wider class of compatible discretization methods, which preserve qualitative propert...

Stereological estimation of the mean and variance of nuclear volume from vertical sections

DEFF Research Database (Denmark)

Sørensen, Flemming Brandt

1991-01-01

The application of assumption-free, unbiased stereological techniques for estimation of the volume-weighted mean nuclear volume, nuclear vv, from vertical sections of benign and malignant nuclear aggregates in melanocytic skin tumours is described. Combining sampling of nuclei with uniform...... probability in a physical disector and Cavalieri's direct estimator of volume, the unbiased, number-weighted mean nuclear volume, nuclear vN, of the same benign and malignant nuclear populations is also estimated. Having obtained estimates of nuclear volume in both the volume- and number distribution...... of volume, a detailed investigation of nuclear size variability is possible. Benign and malignant nuclear populations show approximately the same relative variability with regard to nuclear volume, and the presented data are compatible with a simple size transformation from the smaller benign nuclei...

Additive Number Theory Festschrift in Honor of the Sixtieth Birthday of Melvyn B Nathanson

CERN Document Server

Chudnovsky, David

2010-01-01

This impressive volume is dedicated to Mel Nathanson, a leading authoritative expert for several decades in the area of combinatorial and additive number theory. For several decades, Mel Nathanson's seminal ideas and results in combinatorial and additive number theory have influenced graduate students and researchers alike. The invited survey articles in this volume reflect the work of distinguished mathematicians in number theory, and represent a wide range of important topics in current research.

Medical Surveillance Monthly Report (MSMR). Volume 15, Number 1, January 2008

Science.gov (United States)

2008-01-01

108.8 138.3 1.26 22.34 Idaho 60 99.8 51.9 1.16 13.40 Montana 69 119.5 49.9 1.38 33.13 New Mexico 72 78.6 79.1 0.91 -7.78 Nevada 96 142.3...May 2004. Note: Completeness and timeliness of reporting vary by facility. Shigella Hepatitis B Varicella Reporting locations Number of reports all... Varicella Reporting locations Number of reports all events† Food-borne Vaccine preventable Campylo- bacter Giardia Salmonella 24 VOL. 15 / NO. 1

Lung volumes: measurement, clinical use, and coding.

Science.gov (United States)

Flesch, Judd D; Dine, C Jessica

2012-08-01

Measurement of lung volumes is an integral part of complete pulmonary function testing. Some lung volumes can be measured during spirometry; however, measurement of the residual volume (RV), functional residual capacity (FRC), and total lung capacity (TLC) requires special techniques. FRC is typically measured by one of three methods. Body plethysmography uses Boyle's Law to determine lung volumes, whereas inert gas dilution and nitrogen washout use dilution properties of gases. After determination of FRC, expiratory reserve volume and inspiratory vital capacity are measured, which allows the calculation of the RV and TLC. Lung volumes are commonly used for the diagnosis of restriction. In obstructive lung disease, they are used to assess for hyperinflation. Changes in lung volumes can also be seen in a number of other clinical conditions. Reimbursement for measurement of lung volumes requires knowledge of current procedural terminology (CPT) codes, relevant indications, and an appropriate level of physician supervision. Because of recent efforts to eliminate payment inefficiencies, the 10 previous CPT codes for lung volumes, airway resistance, and diffusing capacity have been bundled into four new CPT codes.

Profesionales de Enfermería para el siglo XXI

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Inés Durana Samper

1992-09-01

Full Text Available

Conferencia dictada en el Hospital Infantil Lorencita Villegas de Santos por la doctora Inés Durana Samper.

Considero un honor y un privilegio compartir con ustedes algunos de los retos de Enfermería Profesional en el campo pediátrico y de salud familiar comunitaria, para su liderazgo en el Hospital Infantil.

He dividido mi presentación en dos partes. En la primera hago una breve reflexión sobre la evolución y afloramiento de nuestros conocimientos inherentes al ejercicio de la enfermería clínica. En la segunda parte, me proyecto al futuro mostrando un nuevo perfil que confió encuentre eco en las generaciones jóvenes a quienes les corresponde hacer la transición en el siglo XXI.

Evolución, Oportunidades y Retos

En la actualidad y en especial al interior de enfermería hospitalaria se atravieza por una gran crisis, en valores, en asuntos económicos, en condiciones de trabajo y otros que merecen nuestra atención colegiada para su solución.

Para explicarla me atrevo a remontarme y analizar un proceso histórico documentado durante mis estudios para obtener el doctorado. Según Fridson, (1, 1970 sociológo dedicado al análisis de las profesiones, Enfermería y Medicina escogieron rutas diferentes para su desarrollo ocupacional. Medicina en la década del 30 y bajo los efectos de la gran depresión económica, desarrolló sus especialidades clínicas en base a la práctica surgida con el comienzo del internado rotando por los servicios tradicionales de medicina, cirugía, pediatría y obstetricia.

Esto contribuyó a que en el seno de los hospitales surgieran otras carreras como apoyo a esas especialidades, campo ocupado casi con exclusividad hasta entonces por· Enfermería; del fisiatra y neumólogo, se formaron las terapias; del patólogo las bacteriólogas. También la introducción de alta tecnología desarrolló una gama de

Stereological analysis of nuclear volume in recurrent meningiomas

DEFF Research Database (Denmark)

Madsen, C; Schrøder, H D

1994-01-01

A stereological estimation of nuclear volume in recurrent and non-recurrent meningiomas was made. The aim was to investigate whether this method could discriminate between these two groups. We found that the mean nuclear volumes in recurrent meningiomas were all larger at debut than in any...... of the control tumors. The mean nuclear volume of the individual recurrent tumors appeared to change with time, showing a tendency to diminish. A relationship between large nuclear volume at presentation and number of or time interval between recurrences was not found. We conclude that measurement of mean...... nuclear volume in meningiomas might help identify a group at risk of recurrence....

PHILOSOPHICAL-CULTURAL CONCEPTION OF TELEVISION AS A VISUAL PRACTICES OF XX-XXI CENTURY

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A. M. Tormakhova

2016-12-01

Full Text Available Purpose of the article is to analyze the philosophical and cultural ideas about television, which is a leading visual practice of XX century. It does not lose its relevance in the beginning of the XXI. The role of television lies in visual presentation and formation of the basic norms of taste and traditions of different social groups. Television is the leading communicative practice, which consideration is represented differently in modern science. Research methodology involves an appeal to the philosophical and cultural concepts, representing different approaches to the understanding of television. The paper considers the views of Western scholars, such as R. Arnheim, M. Wolff, A. Kroker, G. Lipovetsky, M. McLuhan, D. Mulvin, J. Mittell, N. Postman, L. Saffhil, J. Sterne, E. Thompson, J. Fiske, S. Shapiro. During analysis of the issue of the specific nature of television content the works of Russian scientists – T. Savitskaya, N. Samutina and Polish contemporary author – R. Sapenko were used. Originality lies in the depiction of the main approaches to the study of television as a visual communicative practice. Deployment of the author's position within the designated issues is presented as a historical digression – from the first attempts at understanding the phenomenon of television to the newest scientific theories that have found expression in contemporary American philosophical and cultural thought. Results of the study can be used in the training course "Visual communication and practices." Conclusions indicated that the majority of contemporary visual practices based on certain patterns, embedded TV. Despite the emergence of new media practices, TV does not lose relevance, everywhere present in the culture, which means that his research will allow a better understanding of the specificity of cultural creativity process.

O retorno à natureza na ficção brasileira do começo do século XXI

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Luciano Brito

2014-07-01

Full Text Available Este artigo procura entender a tentativa de retorno a representações da natureza na ficção brasileira do começo do século XXI, a partir dos romances Nove noites (2002 de Bernardo Carvalho, Órfãos do Eldorado (2008 de Milton Hatoum e Barba ensopada de sangue (2012 de Daniel Galera. Não sendo mais o sinal de uma necessidade de reivindicação de um patrimônio cultural nacional, como foi o seu papel durante séculos de historiografia literária e cultural, a natureza ressurge na ficção brasileira, de modo inédito, por outros sentidos – de revelação, destruição ou utopia –, excedendo e renovando sua imagem inicial, propagandística, de representação de uma nação. A consequência dessa passagem simbólica, e que mimetizaria o movimento da ficção brasileira atual, é a sua desapropriação como um bem orgulhosamente nacional e a sua integração no que poderíamos chamar de literatura mundial.

Thomas Piketty e "O Capital no Século XXI": da economia política à Sociologia contemporânea

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Bernardo Caprara

Full Text Available Resumo O tema da desigualdade tem uma larga tradição de análise nas Ciências Sociais. Até o final do século XX, a desigualdade econômica ocupava boa parte dessas discussões. De lá para cá, as desigualdades passaram a ser vistas como multidimensionais, mas permanece relevante o estudo da distribuição desigual de renda, riqueza e capital. A obra "O Capital no Século XXI", do economista francês Thomas Piketty, publicada em 2013, na França, e em 2014, no Brasil, envereda por esse caminho e ilumina novas indagações sobre a atualidade e os rumos da desigualdade econômica. Esta resenha crítica objetiva apresentar as principais contribuições do autor para o debate público e acadêmico. Além disso, ambiciona refletir sobre uma agenda para a Sociologia atual, desde a importância de entender como ocorre a gênese e a legitimação da reprodução das desigualdades de oportunidades no nosso tempo.

Condiciones dignas de la labor docente del siglo XXI, un derecho inalienable, no una opción / Dignified Teacher Working Conditions in the 21st Century, an Inalienable Right, not an Option

Directory of Open Access Journals (Sweden)

Guiselle María Garbanzo Vargas

2011-11-01

Full Text Available Recibido 14 de abril de 2011 • Aceptado 26 de agosto de 2011 • Corregido 29 de agosto de 2011 Resumen. Se desarrolla el tema de las condiciones dignas de la labor docente en el desafiante siglo XXI. El objetivo recae en realizar una contextualización de la sociedad emergente en el siglo XXI, en general; así como plantear una revisión, en América Latina, del contexto educativo y de las mismas condiciones laborales del profesional de la educación. Otro objetivo es revisar las condiciones laborales en que se encuentran los educadores en distintos sistemas educativos, incluyendo realidades de Europa y América Latina, entre otras. En las principales ideas que se abordan, se define el perfil del educador de siglo XXI en comparación con el educador de la sociedad tradicional y se desarrollan algunos indicadores de consenso en distintas realidades educativas, así como su integración en tres grandes dimensiones: cognitivas, operativas e institucionales. Sobresale, entre las principales conclusiones, la determinación de políticas públicas que respalden las condiciones laborales en las que se desempeñe el docente de manera digna, lo cual se considera fundamental para una educación inclusiva de calidad, en armonía con las exigencias de la desafiante sociedad emergente. Concluye la autora que este tema es inacabado y debe ser una constante en las agendas educativas de las distintas sociedades. Abstract. The author develops the topic of appropriate teacher working conditions in the challenging 21st Century. The objective is the contextualization of the emergent society in the 21st Century; propose a review of the Latin American educational context and the working conditions of education professionals. Another objective is to review the working conditions of teachers in different educations systems, including Europe and Latin America, among others. The profile of the 21st Century educator is defined in this paper, in comparison to teachers

Strategic Studies Quarterly. Volume 6, Number 3. Fall 2012

Science.gov (United States)

2012-01-01

in use, down to the level of specific version, the build number in use, and the history of security patches applied to it; • IP addresses of...IP addresses from 4,294,967,296 in IPv4 to 2128 in IPv6. It is recognized today that “deploying IPv6 is the only perennial way to ease pressure on...the public IPv4 address pool.”41 As the world begins a transition from using IPv4 to IPv6 as the dominant communications protocol for the global

Podocyte number and density changes during early human life.

Science.gov (United States)

Kikuchi, Masao; Wickman, Larysa; Rabah, Raja; Wiggins, Roger C

2017-05-01

Podocyte depletion, which drives progressive glomerulosclerosis in glomerular diseases, is caused by a reduction in podocyte number, size or function in the context of increasing glomerular volume. Kidneys obtained at autopsy from premature and mature infants who died in the first year of life (n = 24) were used to measure podometric parameters for comparison with previously reported data from older kidneys. Glomerular volume increased 4.6-fold from 0.13 ± 0.07 μm 3 x10 6 in the pre-capillary loop stage, through 0.35 μm 3 x10 6 at the capillary loop, to 0.60 μm 3 x10 6 at the mature glomerular stage. Podocyte number per glomerulus increased from 326 ± 154 per glomerulus at the pre-capillary loop stage to 584 ± 131 per glomerulus at the capillary loop stage of glomerular development to reach a value of 589 ± 166 per glomerulus in mature glomeruli. Thus, the major podocyte number increase occurs in the early stages of glomerular development, in contradistinction to glomerular volume increase, which continues after birth in association with body growth. As glomeruli continue to enlarge, podocyte density (number per volume) rapidly decreases, requiring a parallel rapid increase in podocyte size that allows podocyte foot processes to maintain complete coverage of the filtration surface area. Hypertrophic stresses on the glomerulus and podocyte during development and early rapid growth periods of life are therefore likely to play significant roles in determining how and when defects in podocyte structure and function due to genetic variants become clinically manifest. Therapeutic strategies aimed at minimizing mismatch between these factors may prove clinically useful.

Bits and Pieces ehk kolumna / DJ Pickney Tiger

Index Scriptorium Estoniae

DJ Pickney Tiger, pseud., 1970-

2009-01-01

Tutvustused: XXI Sajandi Orkester. Kaheksa. Tallinn : XXI Sajandi Orkester, 2006 ; XXI Sajandi Orkester. Üheksa. Tallinn : XXI Sajandi Orkester, 2008 ; Silent Bass. Crosshatched. Germany : Laika, 2008 ; Bullfrog Brown with Steve Lury. 2009

Index to Nuclear Safety: a technical progress review by chronology, permuted title, and author, Volume 18 (1) through Volume 22 (6)

International Nuclear Information System (INIS)

Cottrell, W.B.; Passiakos, M.

1982-06-01

This index to Nuclear Safety covers articles published in Nuclear Safety, Volume 18, Number 1 (January-February 1977) through Volume 22, Number 6 (November-December 1981). The index is divided into three section: a chronological list of articles (including abstracts), a permuted-title (KWIC) index, and an author index. Nuclear Safety, a bimonthly technical progress review prepared by the Nuclear Safety Information Center, covers all safety aspects of nuclear power reactors and associated facilities. Over 300 technical articles published in Nuclear Safety in the last 5 years are listed in this index

Index to Nuclear Safety: a technical progress review by chronology, permuted title, and author, Volume 18 (1) through Volume 22 (6)

Energy Technology Data Exchange (ETDEWEB)

Cottrell, W.B.; Passiakos, M.

1982-06-01

This index to Nuclear Safety covers articles published in Nuclear Safety, Volume 18, Number 1 (January-February 1977) through Volume 22, Number 6 (November-December 1981). The index is divided into three section: a chronological list of articles (including abstracts), a permuted-title (KWIC) index, and an author index. Nuclear Safety, a bimonthly technical progress review prepared by the Nuclear Safety Information Center, covers all safety aspects of nuclear power reactors and associated facilities. Over 300 technical articles published in Nuclear Safety in the last 5 years are listed in this index.

ASM News Volume 71 Number 9, 2005

Energy Technology Data Exchange (ETDEWEB)

Tamar Barkay and Barth F. Smets

2005-01-01

Genetic exchanges among prokaryotes, formerly considered only a marginal phenomenon, increasingly are being viewed as profoundly affecting evolution. Indeed, some researchers argue for utterly revamping our concept of microbial speciation and phylogeny by replacing the traditional ''tree'' with a newer ''net'' to account for these horizontal transfers of genes. This conceptual ferment is occurring while molecular biologists reveal how horizontal gene transfers occur even as microbes protect the integrity of their genomes. Other studies reveal the number and diversity and abundance of genetic elements that mediate horizontal gene transfers (HGTs) or facilitate genome rearrangements, deletions, and insertions. Taken together, this information suggests that microbial communities collectively possess a dynamic gene pool, where novel genetic combinations act as a driving force in genomic innovation, compensating individual microbial species for their inability to reproduce sexually. These microbial genomic dynamics can present both environmental threats and promise to humans. One major threat, for example, comes from the spread of antibiotic resistance and virulence genes among pathogenic microbes. Another less-documented issue involves transgenic plants and animals, whose uses are being restricted because of concerns that genes may be transferred to untargeted organisms where they might cause harm. A possible benefit from HGT comes from its potential to enhance the functional diversity of microbial communities and to improve their performance in changing or extreme environments. Such changes might be exploited, for example, as part of efforts to manage environmental pollution and might be achieved by spreading genes into resident microbes to confer specific biochemical activities.

Abnormal sex chromosome constitution and longitudinal growth: serum levels of insulin-like growth factor (IGF)-I, IGF binding protein-3, luteinizing hormone, and testosterone in 109 males with 47,XXY, 47,XYY, or sex-determining region of the Y chromosome (SRY)-positive 46,XX karyotypes

DEFF Research Database (Denmark)

Aksglaede, L.; Skakkebaek, N.E.; Juul, A.

2008-01-01

CONTEXT: Growth is a highly complex process regulated by the interaction between sex steroids and the GH IGF-axis. However, other factors such as sex chromosome-related genes play independent roles. AIM: The aim of the study was to evaluate the role of abnormal chromosome constitution for longitu......CONTEXT: Growth is a highly complex process regulated by the interaction between sex steroids and the GH IGF-axis. However, other factors such as sex chromosome-related genes play independent roles. AIM: The aim of the study was to evaluate the role of abnormal chromosome constitution...... and sitting height, serum levels of reproductive hormones, IGF-I, and IGFBP-3 were measured. RESULTS: In boys with 47,XXY and 47,XYY karyotypes, growth was accelerated already in childhood, compared with healthy boys. 46,XX-males were significantly shorter than healthy boys but matched the stature of healthy...... and elevated LH levels after puberty, whereas the sex hormone secretion of the 47,XYY boys remained normal. CONCLUSION: We found accelerated growth in early childhood in boys with 47,XXY and 47,XYY karyotypes, whereas 46,XX-males were shorter than controls. These abnormal growth patterns were not reflected...

Flores contra canhões? O impasse da ética frente às guerras do século XXI

Directory of Open Access Journals (Sweden)

Fernando Magalhães

2007-01-01

Full Text Available Os conflitos que inauguram o século XXI dão a impressão de que a paz é um objetivo quase inatingível. Diante das novas ameaças, nada faz crer que o terror provocado pela guerra fria encontre-se superado. Ao lado das formas tradicionais de luta, uma guerra quase surda eclode no seio das sociedades. A fome, por exemplo, é uma arma que mata em silêncio, e a violência e a miséria revelam que o estado de natureza persiste. A questão que se coloca, então é a seguinte: é possível falar em paz pensando apenas em critérios éticos? Os problemas no Oriente Médio, o desrespeito às resoluções da ONU por parte de alguns Estados, tudo isso mostra a pouca eficácia do discurso quando não acompanhada da força. O objetivo deste trabalho é apontar os limites da ética pura para combater a violência e mostrar que a normatização do mundo não pode, ainda, prescindir da “crítica das armas”.

O desafio do desenvolvimento frente aos marcos ecológico e de mercado em direção à sustentabilidade no século XXI

Directory of Open Access Journals (Sweden)

Gustavo Madeira da Silveira

2010-12-01

Full Text Available Neste trabalho demonstrar-se-á o desafio do modelo desenvolvimentista atual em direção à preconizada e colimada sustentabilidade. A primeira década deste século XXI foi marcada por dois marcos, um ambiental (as mudanças climáticas e outro de mercado (a crise econômica mundial, que colocaram em cheque o sistema capitalista, tendo em vista as soluções insustentáveis que foram tomadas para enfrentar estes marcos. Foram objeto de análise da pesquisa, a não adesão dos EUA ao Protocolo de Quioto; o contraponto dos países “em desenvolvimento” entre desenvolver-se ora sustentavelmente, ora insustentavelmente; e o fomento do consumo como única alternativa encontrada pelo países para a saída da crise econômica mundial.

A descriptive approach to the social and territorial inequality in rural areas of Northwest Argentina in the first decade of the XXI century

Directory of Open Access Journals (Sweden)

Julieta Krapovickas

2018-02-01

Full Text Available From the last decades of the twentieth century, the rural sector of the Argentine Northwest was the scene of deep territorial and productive transformations linked to the expansion of extractive activities. The effects of these activities include privatization, concentration and land grabs, generating an increase of social and territorial inequality. The aim of this paper is therefore to analyze the socio-territorial inequality in rural areas of Northwest Argentina in the first decade of the XXI century. Four dimensions were analyzed: poverty, education, habitat quality, and agrarian structure. For the analysis of the first three dimensions, data from national population census 2001 and 2010 were used. For the analysis of the territorial and productive transformations were used data from national agricultural censuses 1988, 2002 and 2008. The results allow us to observe that while the habitat quality and education improved during the first decade of the century, there are high poverty and vulnerability in a context of a progressively unequal agrarian structure.

La configuración geohistórica del territorio en la provincia del Chaco y los proyectos de transporte y energía en el Siglo XXI

Directory of Open Access Journals (Sweden)

Mariana Schweitzer

2014-12-01

Full Text Available RESUMEN Este artículo presenta la configuración del territorio en la Provincia del Chaco (Argentina como reflejo del papel desempeñado en los modelos de acumulación dominantes desde el Virreinato del Alto Perú hasta la actualidad. Se analizan los procesos de ocupación poblacional, la expansión de las actividades productivas y el avance de las redes viales, ferroviarias, fluviales y energéticas. Para el siglo XXI se han identificado planes y proyectos de transporte y de energía que involucran al territorio chaqueño, tanto aquellos formulados desde instancias supranacionales como los priorizados por agendas nacionales y provinciales, considerando que podrían modificar la estructura territorial y las oportunidades de desarrollo de esta región. Así se considera la posibilidad de que haya un cambio para los territorios que históricamente han quedado relegados y que hoy pasarían a ocupar un nuevo lugar en la geografía de los proyectos de interconexión a escala regional, y que movilizan oportunidades para nuevos proyectos a escala local. ABSTRACT This paper analyses territorial configuration in the Province of Chaco (Argentine, reflecting the role played in dominant accumulation models, from the Viceroyalty of Peru Alto until today. Population processes, productive activities expansion and networks construction (roads, railways, ports, energy installations, are analyzed. For the XXI century, transport and energy plans and projects, involving and the Chaco territory, have been identified. We have taken into account those initiatives promoted from supranational organizations as well as those prioritized in national and provincial agendas, considering they could change territorial structure and development opportunities for this region. In this way we consider the possibility of change for those territories that have been historically relegated and today they would occupy a new place in the geography of regional interconnection projects

Functionality and Performance Visualization of the Distributed High Quality Volume Renderer (HVR)

KAUST Repository

Shaheen, Sara

2012-07-01

Volume rendering systems are designed to provide means to enable scientists and a variety of experts to interactively explore volume data through 3D views of the volume. However, volume rendering techniques are computationally intensive tasks. Moreover, parallel distributed volume rendering systems and multi-threading architectures were suggested as natural solutions to provide an acceptable volume rendering performance for very large volume data sizes, such as Electron Microscopy data (EM). This in turn adds another level of complexity when developing and manipulating volume rendering systems. Given that distributed parallel volume rendering systems are among the most complex systems to develop, trace and debug, it is obvious that traditional debugging tools do not provide enough support. As a consequence, there is a great demand to provide tools that are able to facilitate the manipulation of such systems. This can be achieved by utilizing the power of compute graphics in designing visual representations that reflect how the system works and that visualize the current performance state of the system.The work presented is categorized within the field of software Visualization, where Visualization is used to serve visualizing and understanding various software. In this thesis, a number of visual representations that reflect a number of functionality and performance aspects of the distributed HVR, a high quality volume renderer system that uses various techniques to visualize large volume sizes interactively. This work is provided to visualize different stages of the parallel volume rendering pipeline of HVR. This is along with means of performance analysis through a number of flexible and dynamic visualizations that reflect the current state of the system and enables manipulation of them at runtime. Those visualization are aimed to facilitate debugging, understanding and analyzing the distributed HVR.

Estimating the Volumes of Solid Figures with Curved Surfaces.

Science.gov (United States)

Cohen, Donald

1991-01-01

Several examples of solid figures that calculus students can use to exercise their skills at estimating volume are presented. Although these figures are bounded by surfaces that are portions of regular cylinders, it is interesting to note that their volumes can be expressed as rational numbers. (JJK)

Un modelo para la formación del talento humano en la organización en el siglo XXI = A model for the formation of human talent in the XXI century organization

Directory of Open Access Journals (Sweden)

Denise Caroline Argüelles P.

2011-08-01

La recherche est axée sur la conception d’un modèle qui permettrait un développement de compétences génériques de l’enseignement à distance basé sur l’apprentissage autonome ce qui pourrait constituer un modèle de formation des ressources humaines de l’organisation du XXI ème siècle. L’étude réalisée est de caractère exploratoire et la proposition en première instance est l’identification des variables du modèle et, en deuxième instance, la construction de celui-ci. La méthodologie utilisée est un Delphi ayant rassemblé 30 experts en enseignement á distance. Le questionnaire a été proposé deux fois au même groupe. Une analyse factorielle a ainsi pu être réalisée. Les résultats de la recherche ont rendu possible un Modèle pour la Génération de Compétences Génériques de l’Enseignement á Distance basé sur l’apprentissage autonome grâce à la combinaison de neuf catégories de variables, dont l’importance a été démontrée. Toutefois, il est également apparu que cette relation devrait être maximisée par le biais de stratégies de contrôle dirigées vers les objectifs que l’on souhaite atteindre car il existe des facteurs inhérents aux catégories qui dépendent de conditions personnelles ainsi que du processus d’apprentissage personnel, ce qui pourrait devenir des obstacles au modèle.

Petroleum supply annual 1998: Volume 2

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1998 through monthly surveys. The PSA is divided into two volumes. The first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. This second volume contains final statistics for each month of 1998, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary. 35 tabs.

Petroleum supply annual, 1997. Volume 2

International Nuclear Information System (INIS)

1998-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1997 through monthly surveys. The PSA is divided into two volumes. The first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. The second volume contains final statistics for each month of 1997, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary. 35 tabs

Petroleum supply annual 1996: Volume 2

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1996 through monthly surveys. The PSA is divided into two volumes. The first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Capacity; each with final annual data. The second volume contains final statistics for each month of 1996, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary. 35 tabs.

Petroleum supply annual, 1997. Volume 2

Energy Technology Data Exchange (ETDEWEB)

NONE

1998-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1997 through monthly surveys. The PSA is divided into two volumes. The first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. The second volume contains final statistics for each month of 1997, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary. 35 tabs.

Petroleum supply annual 1994, Volume 2

International Nuclear Information System (INIS)

1995-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1994 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains four sections: Summary Statistics, Detailed Statistics, Refinery Capacity, and Oxygenate Capacity each with final annual data. The second volume contains final statistics for each month of 1994, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary

Petroleum supply annual 1996: Volume 2

International Nuclear Information System (INIS)

1997-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1996 through monthly surveys. The PSA is divided into two volumes. The first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Capacity; each with final annual data. The second volume contains final statistics for each month of 1996, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary. 35 tabs

Petroleum supply annual 1995: Volume 2

International Nuclear Information System (INIS)

1996-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1995 through monthly surveys. The PSA is divided into two volumes. This first volume contains three sections: Summary Statistics, Detailed Statistics, and selected Refinery Statistics each with final annual data. The second volume contains final statistics for each month of 1995, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary

Petroleum supply annual 1998. Volume 2

International Nuclear Information System (INIS)

1999-06-01

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1998 through monthly surveys. The PSA is divided into two volumes. The first volume contains three sections: Summary Statistics, Detailed Statistics, and Refinery Statistics; each with final annual data. This second volume contains final statistics for each month of 1998, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary. 35 tabs

Provider volume and outcomes for oncological procedures.

LENUS (Irish Health Repository)

Killeen, S D

2012-02-03

BACKGROUND: Oncological procedures may have better outcomes if performed by high-volume providers. METHODS: A review of the English language literature incorporating searches of the Medline, Embase and Cochrane collaboration databases was performed. Studies were included if they involved a patient cohort from 1984 onwards, were community or population based, and assessed health outcome as a dependent variable and volume as an independent variable. The studies were also scored quantifiably to assess generalizability with respect to any observed volume-outcome relationship and analysed according to organ system; numbers needed to treat were estimated where possible. RESULTS: Sixty-eight relevant studies were identified and a total of 41 were included, of which 13 were based on clinical data. All showed either an inverse relationship, of variable magnitude, between provider volume and mortality, or no volume-outcome effect. All but two clinical reports revealed a statistically significant positive relationship between volume and outcome; none demonstrated the opposite. CONCLUSION: High-volume providers have a significantly better outcome for complex cancer surgery, specifically for pancreatectomy, oesphagectomy, gastrectomy and rectal resection.

Direct numerical simulation of moderate-Reynolds-number flow past arrays of rotating spheres

Science.gov (United States)

Zhou, Qiang; Fan, Liang-Shih

2015-07-01

Direct numerical simulations with an immersed boundary-lattice Boltzmann method are used to investigate the effects of particle rotation on flows past random arrays of mono-disperse spheres at moderate particle Reynolds numbers. This study is an extension of a previous study of the authors [Q. Zhou and L.-S. Fan, "Direct numerical simulation of low-Reynolds-number flow past arrays of rotating spheres," J. Fluid Mech. 765, 396-423 (2015)] that explored the effects of particle rotation at low particle Reynolds numbers. The results of this study indicate that as the particle Reynolds number increases, the normalized Magnus lift force decreases rapidly when the particle Reynolds number is in the range lower than 50. For the particle Reynolds number greater than 50, the normalized Magnus lift force approaches a constant value that is invariant with solid volume fractions. The proportional dependence of the Magnus lift force on the rotational Reynolds number (based on the angular velocity and the diameter of the spheres) observed at low particle Reynolds numbers does not change in the present study, making the Magnus lift force another possible factor that can significantly affect the overall dynamics of fluid-particle flows other than the drag force. Moreover, it is found that both the normalized drag force and the normalized torque increase with the increase of the particle Reynolds number and the solid volume fraction. Finally, correlations for the drag force, the Magnus lift force, and the torque in random arrays of rotating spheres at arbitrary solids volume fractions, rotational Reynolds numbers, and particle Reynolds numbers are formulated.

Limiting volume with modern ventilators.

Science.gov (United States)

Wing, Thomas J; Haan, Lutana; Ashworth, Lonny J; Anderson, Jeff

2015-06-01

The acute respiratory distress syndrome (ARDS) network low tidal-volume study comparing tidal volumes of 12 ml/kg versus 6 ml/kg was published in 2000. The study was stopped early as data revealed a 22% relative reduction in mortality rate when using 6 ml/kg tidal volume. The current generation of critical care ventilators allows the tidal volume to be set during volume-targeted, assist/control (volume A/C); however, some ventilators include options that may prevent the tidal volume from being controlled. The purpose of this bench study was to evaluate the delivered tidal volume, when these options are active, in a spontaneously breathing lung model using an electronic breathing simulator. Four ventilators were evaluated: CareFusion AVEA (AVEA), Dräger Evita® XL (Evita XL), Covidien Puritan Bennett® 840(TM) (PB 840), and Maquet SERVO-i (SERVO-i). Each ventilator was connected to the Hans Rudolph Electronic Breathing Simulator at an amplitude of 0 cm H2O and then 10 cm H2O. All four ventilators were set to deliver volume A/C, tidal volume 400 ml, respiratory rate 20 bpm, positive end-expiratory pressure 5 cm H2O, peak flowrate 60 L/min. The displayed tidal volume was recorded for each ventilator at the above settings with additional options OFF and then ON. The AVEA has two options in volume A/C: demand breaths and V-sync. When activated, these options allow the patient to exceed the set tidal volume. When using the Evita XL, the option AutoFlow can be turned ON or OFF, and when this option is ON, the tidal volume may vary. The PB 840 does not have any additional options that affect volume delivery, and it maintains the set tidal volume regardless of patient effort. The SERVO-i's demand valve allows additional flow if the patient's inspiratory flowrate exceeds the set flowrate, increasing the delivered tidal volume; this option can be turned OFF with the latest software upgrade. Modern ventilators have an increasing number of optional settings. These settings may

Defense Acquisition Research Journal. Volume 21, Number 2, Issue 69

Science.gov (United States)

2014-04-01

Manual of the American Psychological Association ( 6th Edition ). For all other style questions, please refer to the Chicago Manual of Style (15th...Graphic Designer Technical Editor Editorial Assistant Proofreader Multimedia Assistant Editing , Design, and Layout A Publication of the Defense...language. Format Please submit your manuscript with references in APA format (author-date-page number form of citation) as outlined in the Publication

Delayed recall, hippocampal volume and Alzheimer neuropathology: findings from the Nun Study.

Science.gov (United States)

Mortimer, J A; Gosche, K M; Riley, K P; Markesbery, W R; Snowdon, D A

2004-02-10

To examine the associations of hippocampal volume and the severity of neurofibrillary lesions determined at autopsy with delayed verbal recall performance evaluated an average of 1 year prior to death. Hippocampal volumes were computed using postmortem brain MRI from the first 56 scanned participants of the Nun Study. Quantitative neuropathologic studies included lesion counts, Braak staging, and determination of whether neuropathologic criteria for Alzheimer disease (AD) were met. Multiple regression was used to assess the association of hippocampal volume and neuropathologic lesions with the number of words (out of 10) recalled on the Consortium to Establish a Registry for Alzheimer's Disease Delayed Word Recall Test administered an average of 1 year prior to death. When entered separately, hippocampal volume, Braak stage, and the mean neurofibrillary tangle counts in the CA-1 region of the hippocampus and the subiculum were strongly associated with the number of words recalled after a delay, adjusting for age and education. When hippocampal volume was entered together with each neuropathologic index, only hippocampal volume retained a significant association with the delayed recall measure. The association between hippocampal volume and the number of words recalled was present in both demented and nondemented individuals as well as in those with and without substantial AD neurofibrillary pathology. The association of neurofibrillary tangles with delayed verbal recall may reflect associated hippocampal atrophy.

Pop / Tauno Maarpuu

Index Scriptorium Estoniae

Maarpuu, Tauno

2007-01-01

Heliplaatidest: Malcolm Middleton "A Brighter Beat", Bonobo "Days To Come", Beach House "Beach House", 69 Eyes "Angels", The Stooges "The Weirdness", Art Garfunkel "Some Enchanted Evening", Calla "Strength in Numbers", XXI Sajandi Orkester "Kaheksa"

The Coast Artillery Journal. Volume 57, Number 6, December 1922

Science.gov (United States)

1922-12-01

theorems ; Chapter III, to application; Chapters IV, V and VI, to infinitesimals and differentials, trigonometric functions, and logarithms and...taneously." There are chapters on complex numbers with simple and direct discussion of the roots of unity; on elementary theorems on the roots of an...through the centuries from the time of Pythagoras , an interest shared on the one extreme by nearly every noted mathematician and on the other extreme by

Defense Acquisition Research Journal. Volume 22, Number 1, Issue 72.

Science.gov (United States)

2015-01-01

references in APA format (author-date-page number form of citation) as outlined in the Publication Manual of the American Psychological Association [ 6th ... Edition ]). For all other style questions, please refer to the Chicago Manual of Style (16th Edition ). Contributors are encouraged to seek the advice of...reference to government works. Helpful guidance is also available in The Complete Guide to Citing Government Documents (Revised Edition ): A Manual

Defense Acquisition Research Journal. Volume 21, Number 1, Issue 68

Science.gov (United States)

2014-01-01

Manual of the American Psychological Association ( 6th Edition ). For all other style questions, please refer to the Chicago Manual of Style (15th...language. Format Please submit your manuscript with references in APA format (author- date-page number form of citation) as outlined in the Publication ...January 2014 Vol. 21 No. 1 | ISSUE 68 Challenging Conventional Wisdom REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public

O servidor público no mundo do trabalho do século XXI El empleado público en el mundo del trabajo del siglo XXI The public servant in the labor world Of The 21St century

Directory of Open Access Journals (Sweden)

Carla Vaz dos Santos Ribeiro

2013-01-01

Full Text Available O texto aborda as repercussões do discurso depreciativo da sociedade dirigido ao servidor público - em muito intensificado pelas mutações no mundo do trabalho na virada do século XX para o XXI - na subjetividade dessa categoria e investiga como esses trabalhadores convivem com a utilização corrente de estereótipos negativos que desqualificam e desvalorizam a sua atividade laboral. O texto discute ainda como a falta de reconhecimento e de valorização interfere no sentido atribuído pelos servidores públicos à sua vida profissional. O texto analisa também as transformações ocorridas no setor público nas últimas décadas, em especial, as mudanças provocadas a partir da implementação da Reforma do Estado, de 1995, no Brasil, constata que a crise do Estado-providência influencia de maneira decisiva as políticas, as estruturas e a cultura das organizações estatais e identifica um novo cenário que gera significativos impactos na produção da subjetividade da categoria; por fim, questiona se ainda há espaço para o servidor público no mundo do trabalho contemporâneo.El texto aborda las repercusiones del discurso despectivo de la sociedad dirigido al empleado público - en mucho intensificado por las mutaciones en el mundo del trabajo en el cambio del siglo XX para el XXI - en la subjetividad de esa categoría e investiga como esos trabajadores conviven con la utilización corriente de estereotipos negativos que descalifican y desvalorizan su actividad laboral. El texto discute también como la falta de reconocimiento y de valorización interfiere en el sentido atribuido por los servidores públicos a su vida profesional. El texto analiza también las transformaciones ocurridas en el sector público en las últimas décadas, en especial, los cambios provocados desde la implementación de la Reforma del Estado, de 1995, en Brasil, constata que la crisis del Estado-providencia influencia de manera decisiva las políticas, las

The Entrepreneurial Domains of American Higher Education. ASHE Higher Education Report, Volume 34, Number 5

Science.gov (United States)

Mars, Matthew M.; Metcalf, Amy Scott

2009-01-01

This volume draws on a diverse set of literatures to represent the various ways in which entrepreneurship is understood in and applied to higher education. It provides a platform for debate for those considering applications of entrepreneurial principles to academic research and practices. Using academic entrepreneurship in the United States as…

Planimetric determination of lung volume

International Nuclear Information System (INIS)

Bieber, M.; Maurer, H.J.

1984-01-01

The total volume of the lungs was determined by digital planimetry in 102 patients with emphysema and 33 normal controls aged between 30 and 79 years. The results were compared with the findings obtained from spirometric measurements. Mean values showed a significant relationship to age, body size and body surface. Planimetrically determined lung volume did not show a linear relationship with age, but increased after 60 years. Beyong 60 years, spirometric findings were lower because of an increase in the number of patients with emphysema. The results have shown that digital planimetry is a useful addition to spirometry. (orig.) [de

Algebraic Geometry and Number Theory Summer School

CERN Document Server

Sarıoğlu, Celal; Soulé, Christophe; Zeytin, Ayberk

2017-01-01

This lecture notes volume presents significant contributions from the “Algebraic Geometry and Number Theory” Summer School, held at Galatasaray University, Istanbul, June 2-13, 2014. It addresses subjects ranging from Arakelov geometry and Iwasawa theory to classical projective geometry, birational geometry and equivariant cohomology. Its main aim is to introduce these contemporary research topics to graduate students who plan to specialize in the area of algebraic geometry and/or number theory. All contributions combine main concepts and techniques with motivating examples and illustrative problems for the covered subjects. Naturally, the book will also be of interest to researchers working in algebraic geometry, number theory and related fields.

More Sets, Graphs and Numbers

CERN Document Server

Gyori, Ervin; Lovasz, Laszlo

2006-01-01

This volume honours the eminent mathematicians Vera Sos and Andras Hajnal. The book includes survey articles reviewing classical theorems, as well as new, state-of-the-art results. Also presented are cutting edge expository research papers with new theorems and proofs in the area of the classical Hungarian subjects, like extremal combinatorics, colorings, combinatorial number theory, etc. The open problems and the latest results in the papers are sure to inspire further research.

Analysis of nocturia with 24-h urine volume, nocturnal urine volume, nocturnal bladder capacity and length of sleep duration: concept for effective treatment modality.

Science.gov (United States)

Udo, Yukihiro; Nakao, Masahiro; Honjo, Hisashi; Ukimura, Osamu; Kawauchi, Akihiro; Kitakoji, Hiroshi; Miki, Tsuneharu

2011-03-01

• To determine the relationship between the number of nocturia and 24-h urine volume, nocturnal urine volume, nocturnal bladder capacity and length of sleep duration as well as to assess the significance of these factors with respect to eliminating nocturnal voidings in individual patients with nocturia. • Among 532 participants who completed a 3-day bladder diary between April 2005 and December 2006, the diaries of 450 participants without 24-h polyuria were analyzed. • Clinical variables such as the number of daytime and night-time voids, 24-h urine volume, nocturnal polyuria index, daytime and night-time maximum voided volumes (MVV), night/day MVV ratio, sleep duration and proportion of night/day urine production rates were obtained from each diary. • Participants were classified into eight groups according to values of three factors: nocturnal MVV, proportion of night/day urine production rates and length of sleep duration. • Each group was divided into three subgroups: non-nocturics (number of nocturnal voidings is zero), mild nocturics (number of nocturnal voidings is one) and severe nocturics (number of nocturnal voidings is two or more). • The data from non-nocturics with three normal factors were regarded as the normal control and compared with the variables of the other subgroups using Dunnett's method. • Variables that form the basis of classifying participants into eight groups and corresponding to abnormal factors of each group were statistically significant in all the subgroups of each group. • Furthermore, a significantly increased 24-h urine volume was found in severe nocturics of the group with three normal factors. • A significantly decreased 24-h urine volume was found in non-nocturics of groups with nocturnal polyuria, decreased bladder capacity and both long sleep duration and nocturnal polyuria. • A significantly increased nocturnal MVV and night/day MVV ratio were shown in non-nocturics and mild nocturics of the groups

2,3-Dihydroxybenzoic acid attenuates kanamycin-induced volume reduction in mouse utricular type I hair cells

DEFF Research Database (Denmark)

Severinsen, Stig Åvall; Kirkegaard, Mette; Nyengaard, Jens Randel

2006-01-01

injection. Total volume of the utricle, as well as total number of hair and supporting cells, were estimated on light microscopic sections. Total volume and mean volume of hair cell types I and II and supporting cells were estimated on digital transmission electron micrographs. Total volume of the utricular...... macula, hair cell type I and supporting cells decreased significantly in animals injected with kanamycin but not in animals co-treated with DHB. Hair and supporting cell numbers remained unchanged in all three groups. In conclusion, the kanamycin-induced volume reduction of type I hair cells...

Mechanisms underlying KCNQ1channel cell volume sensitivity

DEFF Research Database (Denmark)

Hammami, Sofia

Cells are constantly exposed to changes in cell volume during cell metabolism, nutrient uptake, cell proliferation, cell migration and salt and water transport. In order to cope with these perturbations, potassium channels in line with chloride channels have been shown to be likely contributors...... to the process of cell volume adjustments. A great diversity of potassium channels being members of either the 6TM, 4 TM or 2 TM K+ channel gene family have been shown to be strictly regulated by small, fast changes in cell volume. However, the precise mechanism underlying the K+ channel sensitivity to cell...... volume alterations is not yet fully understood. The KCNQ1 channel belonging to the voltage gated KCNQ family is considered a precise sensor of volume changes. The goal of this thesis was to elucidate the mechanism that induces cell volume sensitivity. Until now, a number of investigators have implicitly...

History of CERN. Volume 3

International Nuclear Information System (INIS)

Krige, J.

1996-01-01

The present volume continues the story of the history of the European Organization for Nuclear Research (CERN) in Geneva, Switzerland, concentrating on the years between the mid 1960s and the late 1970s. Whereas the first two volumes were the product of a team of historians, this book is rather a collection of studies by authors with very different professional backgrounds and institutional locations. It also differs from the predecessor volumes in the fact that it consists of distinct case studies dealing with a number of issues deemed important. The first part of this volume, containing contributions by historians of science, perceives the laboratory as being at the node of a complex of interconnected relationships between scientists and science managers on the staff, the users in the member states, and the governments which were called upon to finance the laboratory. In part 2 the physical results, obtained at CERN, are surveyed, while in part 3 two chapters are presented, one on engineering and technology, and the other on the research and development of electronic position detectors

Neural systems for social cognition : gray matter volume abnormalities in boys at high genetic risk of autism symptoms, and a comparison with idiopathic autism spectrum disorder.

NARCIS (Netherlands)

Goddard, M.N.; Swaab, H.; Rombouts, S.A.; Van, Rijn S.

2016-01-01

Klinefelter syndrome (47, XXY) is associated with several physical, cognitive, and behavioral consequences. In terms of social development, there is an increased risk of autism symptomatology. However, it remains unclear how social deficits are related to abnormal brain development and to what

Estimating the Number of Eggs in Blow Fly (Diptera: Calliphoridae) Egg Masses Using Photographic Analysis.

Science.gov (United States)

Rosati, J Y; Pacheco, V A; Vankosky, M A; Vanlaerhoven, S L

2015-07-01

Little work has been done to quantify the number of eggs oviposited by blow flies (Diptera: Calliphoridae) in studies examining colonization behavior. Egg counting methods currently available are time-consuming and destructive. This study used ImageJ software and analysis of covariance to relate the volume of egg masses to the number of eggs laid by three different blow fly species: Lucilia sericata (Meigen), Phormia regina (Meigen), and Chrysomya rufifacies (Macquart). Egg mass volume, species, and the interaction of species and egg mass volume all affected the number of blow fly eggs deposited in egg masses. Both species identity and egg mass volume are important when predicting egg number, as such a single regression equation cannot be used to estimate egg number for these three species. Therefore, simple linear regression equations were determined for each species. The volume of individual eggs was incorporated into the model, yet differences between species were observed, suggesting that the orientation of the eggs oviposited by multiple conspecific females within egg masses influences egg estimates. Based on our results, we expect that imaging software can be used for other blow fly species, as well as other insect species; however, equations specific to each species must be developed. This study describes an important tool for quantifying egg deposition in a nondestructive manner, which is important in studying the colonization behavior and life history of insects of ecological and forensic importance. © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

AS TECNOLOGIAS DE COMUNICAÇÃO DO SÉCULO XXI E O MEIO AMBIENTE: A UTILIZAÇÃO DOS SATÉLITES ORBITAIS COMO INSTRUMENTOS PROBATÓRIOS NA VIOLAÇÃO DO MEIO AMBIENTE

OpenAIRE

Souza, Alfeu de Arruda; Tybusch, Jerônimo Siqueira

2013-01-01

O Brasil é um país que apresenta uma das maiores coberturas vegetais e biodiversidade do planeta. Os recursos humanos por si só dos órgãos fiscalizadores  são insuficientes para gerenciar e fiscalizar um territorio que possui dimensões continentais e que constantemente tem sofrido com a degradação e destruição de sua fauna e flora. Assim, diante da realidade do século XXI os órgãos de fiscalizções do meio ambiente estão cada vez mais utilizando-se das tecnologias de informação e dos sistemas ...

Journal of Gravitational Physiology, Volume 12, Number 1

Science.gov (United States)

Fuller, Charles A. (Editor); Cogoli, Augusto (Editor); Hargens, Alan R. (Editor); Smith, Arthur H. (Editor)

2005-01-01

Processes; Orpheus 0 G or Ear in Microgravity to Establish Symptoms Concomittant of Inner and Middle Ear and Osteoporosis in Microgravity; Understanding Visual Perception in the Perspective of Gravity; Cortical Regions Associated with Orthostatic Stress in Conscious Humans; Restoration of Central Blood Volume: Application of a Simple Concept and Simple Device to Counteract Cardiovascular Instability in Syncope and Hemorrhage; WISE-2005: Integrative Cardiovascular Responses with LBNP during 60-Day Bed Rest in Women; Intracranial Pressure Increases during Weightlessness. A Parabolic Flights Study; Lower Limb & Portal Veins Echography for Predicting Risk of Thrombosis during a 90-D Bed Rest; Calf Tissue Liquid Stowage and Muscular and Deep Vein Distension in Orthostatic Tests after a 90-Day Head Down Bed Rest; Morphology of Brain Vessels in the Tail Suspended Rats Exposed to Intermittent 2 G; Alterations in Vasoreactivity of Femoral Artery Induced by Hindlimb Unweighting are Related to the Changes of Contractile Protein in Rats; and Respiratory Sinus Arrhythmia: A Marker of Decreased Parasympathetic Modulation after Short Duration.

Sequences, groups, and number theory

CERN Document Server

Rigo, Michel

2018-01-01

This collaborative book presents recent trends on the study of sequences, including combinatorics on words and symbolic dynamics, and new interdisciplinary links to group theory and number theory. Other chapters branch out from those areas into subfields of theoretical computer science, such as complexity theory and theory of automata. The book is built around four general themes: number theory and sequences, word combinatorics, normal numbers, and group theory. Those topics are rounded out by investigations into automatic and regular sequences, tilings and theory of computation, discrete dynamical systems, ergodic theory, numeration systems, automaton semigroups, and amenable groups.  This volume is intended for use by graduate students or research mathematicians, as well as computer scientists who are working in automata theory and formal language theory. With its organization around unified themes, it would also be appropriate as a supplemental text for graduate level courses.

Paradoxos da Comunicação e do Consumo no Brasil do séc. XXI

Directory of Open Access Journals (Sweden)

Gisela B. Taschner

2011-11-01

Full Text Available As novas tecnologias e a globalização vêm trazendo a possibilidade de estruturas mais democráticas de comunicação, produção e consumo, assim como de novos padrões de sociabilidade e de novas formas de atuação política. Na área da  mídia, a internet tende a minar o poder da indústria cultural, bem como seus efeitos  alienantes. Essa parece ser a tendência no Ocidente, no século XXI. No Brasil, no  entanto, o tipo de oligopolização do setor de comunicações existente tem mantido  um predomínio da mídia televisiva tradicional (aberta e paga não encontradiço  em países avançados. Não se trata de mera sobrevida de um padrão antigo em um  mundo em transição. Há uma articulação perversa dessa mídia com as exigências  do capitalismo pós-industrial, que se expressa sobremaneira nos momentos do lazer  e do consumo dos jovens e das crianças. Ocorre, pois, um paradoxo, talvez típico da  pós-modernidade brasileira, que, em um extremo, abriga um consumidor – cidadão  muito crítico, e no outro, técnicas de indução ao  consumismo, especialmente o infantil; ele é o tema de nossa reflexão.

Experimental Surface Pressure Data Obtained on 65 deg Delta Wing Across Reynolds Number and Mach Number Ranges. Volume 2; Small-Radius Leading Edge

Science.gov (United States)

Chu, Julio; Luckring, James M.

1996-01-01

An experimental wind tunnel test of a 65 deg. delta wing model with interchangeable leading edges was conducted in the Langley National Transonic Facility (NTF). The objective was to investigate the effects of Reynolds and Mach numbers on slender-wing leading-edge vortex flows with four values of wing leading-edge bluntness. Experimentally obtained pressure data are presented without analysis in tabulated and graphical formats across a Reynolds number range of 6 x 10(exp 6) to 84 x 10(exp 6) at a Mach number of 0.85 and across a Mach number range of 0.4 to 0.9 at Reynolds numbers of 6 x 10(exp 6) and 60 x 10(exp 6). Normal-force and pitching-moment coefficient plots for these Reynolds number and Mach number ranges are also presented.

Automatic Method for Controlling the Iodine Adsorption Number in Carbon Black Oil Furnaces

Directory of Open Access Journals (Sweden)

Zečević, N.

2008-12-01

Full Text Available There are numerous of different inlet process factors in carbon black oil furnaces which must be continuously and automatically adjusted, due to stable quality of final product. The most important six inlet process factors in carbon black oil-furnaces are:1. volume flow of process air for combustion2. temperature of process air for combustion3. volume flow of natural gas for insurance the necessary heat for thermal reaction of conversionthe hydrocarbon oil feedstock in oil-furnace carbon black4. mass flow rate of hydrocarbon oil feedstock5. type and quantity of additive for adjustment the structure of oil-furnace carbon black6. quantity and position of the quench water for cooling the reaction of oil-furnace carbon black.The control of oil-furnace carbon black adsorption capacity is made with mass flow rate of hydrocarbon feedstock, which is the most important inlet process factor. Oil-furnace carbon black adsorption capacity in industrial process is determined with laboratory analyze of iodine adsorption number. It is shown continuously and automatically method for controlling iodine adsorption number in carbon black oil-furnaces to get as much as possible efficient control of adsorption capacity. In the proposed method it can be seen the correlation between qualitatively-quantitatively composition of the process tail gasses in the production of oil-furnace carbon black and relationship between air for combustion and hydrocarbon feedstock. It is shown that the ratio between air for combustion and hydrocarbon oil feedstock is depended of adsorption capacity summarized by iodine adsorption number, regarding to BMCI index of hydrocarbon oil feedstock.The mentioned correlation can be seen through the figures from 1. to 4. From the whole composition of the process tail gasses the best correlation for continuously and automatically control of iodine adsorption number is show the volume fraction of methane. The volume fraction of methane in the

Defense AT&L. Volume 43, Number 6, November-December 2014

Science.gov (United States)

2014-12-01

Conclusion The United States needs to make hard choices if NASA is to send astronauts to an asteroid by 2025, and a crewed Mars mission by the 2030s. Game...to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. 1. REPORT DATE DEC...Success of Software Integration Testing Labs Christian Hagen, Steven Hurt and Andrew Williams The U.S. military is moving from a world dominated by

Small-Volume Injections: Evaluation of Volume Administration Deviation From Intended Injection Volumes.

Science.gov (United States)

Muffly, Matthew K; Chen, Michael I; Claure, Rebecca E; Drover, David R; Efron, Bradley; Fitch, William L; Hammer, Gregory B

2017-10-01

In the perioperative period, anesthesiologists and postanesthesia care unit (PACU) nurses routinely prepare and administer small-volume IV injections, yet the accuracy of delivered medication volumes in this setting has not been described. In this ex vivo study, we sought to characterize the degree to which small-volume injections (≤0.5 mL) deviated from the intended injection volumes among a group of pediatric anesthesiologists and pediatric postanesthesia care unit (PACU) nurses. We hypothesized that as the intended injection volumes decreased, the deviation from those intended injection volumes would increase. Ten attending pediatric anesthesiologists and 10 pediatric PACU nurses each performed a series of 10 injections into a simulated patient IV setup. Practitioners used separate 1-mL tuberculin syringes with removable 18-gauge needles (Becton-Dickinson & Company, Franklin Lakes, NJ) to aspirate 5 different volumes (0.025, 0.05, 0.1, 0.25, and 0.5 mL) of 0.25 mM Lucifer Yellow (LY) fluorescent dye constituted in saline (Sigma Aldrich, St. Louis, MO) from a rubber-stoppered vial. Each participant then injected the specified volume of LY fluorescent dye via a 3-way stopcock into IV tubing with free-flowing 0.9% sodium chloride (10 mL/min). The injected volume of LY fluorescent dye and 0.9% sodium chloride then drained into a collection vial for laboratory analysis. Microplate fluorescence wavelength detection (Infinite M1000; Tecan, Mannedorf, Switzerland) was used to measure the fluorescence of the collected fluid. Administered injection volumes were calculated based on the fluorescence of the collected fluid using a calibration curve of known LY volumes and associated fluorescence.To determine whether deviation of the administered volumes from the intended injection volumes increased at lower injection volumes, we compared the proportional injection volume error (loge [administered volume/intended volume]) for each of the 5 injection volumes using a linear

LLE Review: Quarterly report, July--September 1994. Volume 60

Energy Technology Data Exchange (ETDEWEB)

Knauer, J.P. [ed.

1994-12-31

This volume contains articles on efficient generation of second-harmonic radiation from short-pulse lasers; calculation of the stabilization cutoff wave numbers for the Rayleigh-Taylor instability; a high-frequency silicon optical modulator; the angular dependence of stimulated Brillouin scattering; and femtosecond dynamics of ladder polymers. Three of these articles--second-harmonic generation, Rayleigh-Taylor cutoff wave numbers, and angular dependence of Brillouin scattering--are directly related to the OMEGA Upgrade, currently under construction. A summary of the status of the OMEGA Upgrade laser facility and the NLUF News for FY94 are included in this volume.

Delivered volumes of enteral nutrition exceed prescribed volumes.

Science.gov (United States)

Walker, Renee Nichole; Utech, Anne; Velez, Maria Eugenia; Schwartz, Katie

2014-10-01

Enteral nutrition (EN) provisions are typically calculated based on a 24-hour infusion period. However, feedings are often interrupted for daily activities, procedures, or gastrointestinal intolerance. The study's objective was to determine the delivered EN quantities provided to stable hospitalized patients, using cellular time and measured volumes to verify our EN calculation adjustment. A supply of consecutively numbered ready-to-hang (RTH) EN product was delivered to the bedside of 26 inpatients with established EN tolerance at goal rates on various types of nursing units. The dietitian weighed the volume remaining in the infusing product and recorded the measurement time. On the following days, the dietitian continued to weigh the infusing RTH product and the empty RTH bottles saved by nursing. The primary outcome was the difference between the prescribed and delivered EN provisions, which was calculated with a paired t test. Patients received significantly more calories in the delivered enteral feeding (mean [SD], 1678 [385] kcal) than prescribed calories in the EN order (1489 [246 kcal]; t = 3.736, P = .001), adjusting for observed time. No significant differences were found between nursing units, product, and rate. EN delivered may actually exceed ordered amounts by 5%–21% (mean, 12%) with feeding pump inaccuracy as the primary contributing factor. This differs from what others have found. Our findings support using a volume-based ordering system vs a rate-based ordering system for more accurate EN delivery.

Endoscopic stenting in bile duct cancer increases liver volume.

Science.gov (United States)

Lee, Chang Hun; Kim, Seong Hun; Kim, In Hee; Kim, Sang Wook; Lee, Soo Teik; Kim, Dae Ghon; Yang, Jae Do; Yu, Hee Chul; Cho, Baik Hwan; Lee, Seung Ok

2014-09-01

Objective evaluation tools for assessing the effectiveness of stenting in palliative treatment of malignant biliary obstruction are not satisfactory. Effects of biliary stenting on liver volume change have never been studied. We aimed to use volumetry to analyze liver volume changes after endoscopic stenting in bile duct cancer according to the location and number of stents. Retrospective review. University hospital. Patients with a diagnosis of hilar or distal bile duct cancer and who underwent biliary metal stenting. ERCP with self-expandable metal stent placement. Liver volume change after biliary stenting and its comparison according to the location (hilar vs distal common bile duct) and number (hilar bilateral vs hilar unilateral). There were 60 patients; 31 were treated for hilar bile duct cancer (13 for bilateral stent and 18 for unilateral stent) and 29 for distal bile duct cancer. Overall mean follow-up duration was 11.7 ± 4.9 weeks. Liver volume increased 17.4 ± 24.1%. The rate of liver growth was rapid during the early period from 4 to 8 weeks. Stenting in hilar bile duct cancer tended to increase liver volume more than distal biliary stents (22.5% vs 11.9%, P = .091). In hilar bile duct cancer, unilateral and bilateral stents showed similar liver volume increases (20.1% and 25.8%, respectively; P = .512). Single center, retrospective. Biliary stenting markedly increased liver volume in both hilar and distal bile duct cancer. Our data suggest that liver volume assessment could be a useful tool for evaluating stent efficacy. Copyright © 2014 American Society for Gastrointestinal Endoscopy. Published by Mosby, Inc. All rights reserved.

Estructura productiva, pobreza y problemas de empleo en las provincias pampeanas y norteñas de Argentina en los primeros años del siglo XXI

Directory of Open Access Journals (Sweden)

Fernando Longhi

2017-01-01

Full Text Available Argentina, históricamente, ha presentado profundas desigualdades socioeconómicas regionales. Las provincias del Noroeste mostraron notorias diferencias respecto a las pampeanas en la producción de riqueza. Así, a fines del siglo xx, mientras en las provincias pampeanas la pobreza alcanzaba al 32,9% de su población, en el norte estas privaciones se duplicaban. Este artículo tiene por objeto analizar comparativamente las características de estas privaciones —considerando escalas provinciales y departamentales—, vinculándolas a su vez con las transformaciones económicas y productivas y con los problemas de empleo a lo largo del siglo xx e inicios del xxi. Los resultados advierten un notorio proceso de fragmentación socioterritorial como corolario de la persistencia de la desigualdad. Se destaca el recrudecimiento de dicha fragmentación en determinadas provincias y departamentos argentinos.

International Conference on Automorphic Forms and Number Theory

CERN Document Server

Al-Baali, Mehiddin; Ibukiyama, Tomoyoshi; Rupp, Florian

2014-01-01

This edited volume presents a collection of carefully refereed articles covering the latest advances in Automorphic Forms and Number Theory, that were primarily developed from presentations given at the 2012 “International Conference on Automorphic Forms and Number Theory,” held in Muscat, Sultanate of Oman. The present volume includes original research as well as some surveys and outlines of research altogether providing a contemporary snapshot on the latest activities in the field and covering the topics of: Borcherds products Congruences and Codes Jacobi forms Siegel and Hermitian modular forms Special values of L-series Recently, the Sultanate of Oman became a member of the International Mathematical Society. In view of this development, the conference provided the platform for scientific exchange and collaboration between scientists of different countries from all over the world. In particular, an opportunity was established for a close exchange between scientists and students of Germany, Oman, and J...

Bubble formation in shear-thinning fluids: Laser image measurement and a novel correlation for detached volume

Directory of Open Access Journals (Sweden)

Fan Wenyuan

2017-01-01

Full Text Available A laser image system has been established to quantify the characteristics of growing bubbles in quiescent shear-thinning fluids. Bubble formation mechanism was investigated by comparing the evolutions of bubble instantaneous shape, volume and surface area in two shear-thinning liquids with those in Newtonian liquid. The effects of solution mass concentration, gas chamber volume and orifice diameter on bubble detachment volume are discussed. By dimensional analysis, a single bubble volume detached within a moderate gas flowrate range was developed as a function of Reynolds number ,Re, Weber number, We, and gas chamber number, Vc, based on the orifice diameter. The results reveal that the generated bubble presents a slim shape due to the shear-thinning effect of the fluid. Bubble detachment volume increases with the solution mass concentration, gas chamber volume and orifice diameter. The results predicted by the present correlation agree better with the experimental data than the previous ones within the range of this paper.

Racionalidad de la política exterior de la República Popular China en el siglo XXI: los casos de Ecuador y Perú en América Latina durante el período 2008-2011

OpenAIRE

Terán Samanamud, Germán Alexander

2012-01-01

Este trabajo tiene como objetivo principal el comprender y describir la racionalidad que sustenta, a inicios del siglo XXI, la definición de los objetivos y la estrategia de Política exterior china, aterrizando, al interior de la región de América Latina y el Caribe, en los casos de Ecuador y Perú. Con ese fin, se ha explorado, desde el marco teórico del realismo, la necesidad de maximización de seguridad de la República Popular China, inmersa, al igual que todos los demás Esta...

PRISM, Volume 6, Number 1, 2016: Women, Peace and Inclusive Security

Science.gov (United States)

2016-03-01

Department of Defense, or the U.S. Government. 2 “SASC Testimony,” YouTube video, General Robert H. Barrow, 27th Commandant of the Marine Corps...result. The number of single mothers skyrocketed during these years. Families fell apart as depressed , violent, and drunk men abused their wives

Reflexões sobre a prática atual da enfermagem e prenúncios de mudanças para o século XXI

Directory of Open Access Journals (Sweden)

Evely M. Pereira Koller

1992-03-01

Full Text Available Este trabalho consta de reflexões acerca de temas polêmicos e controversos da prática de enfermagem, de tal modo inter-relacionados queo eixo central aponta prenúncios de mudanças para a profissão no século XXI. Discorre sobre o modelo biomédico, paradigma dominante no mundo contemporâneo, que supervaloriza o método científico em detrimento de uma visão humanista do homem e holística de saúde. A busca da superação deste modelo tem possibilitado práticas alternativas em saúde entre os diversos profissionais da área. Discute o saber e o poder na prática profissional, suas relações com o processo formador que pouco têm contribuído na formação de enfermeiro com consciência crítica. Superar esses impasses requer o redimensionamento do processo de trabalho, organização, mobilização e ações coletivas da categoria.

Calculations of doses for the personnel wrapped up in the radiological accident of the Specialties Hospital of the National Medical Center ''Siglo XXI''

International Nuclear Information System (INIS)

Cortes C, A.

2004-01-01

In this work the methodology used by the National Commission of Nuclear Safety and Safeguards for the determination of the internal dose due to the ingestion of coffee with I-131 for the personnel of the service of nuclear medicine of the Hospital of Specialties of the National Medical Center ''Siglo XXI'' of the Mexican Institute of the Social Insurance (IMSS), that was poured in the coffeepot of the service by a deliberate act before mentioned, is presented. Three different techniques were used to determine the initial activity incorporated starting from the measurements of retained activity in thyroid for 6 people of the service of nuclear medicine; the techniques employee provided consistent results. Using the results of the technique of the best estimator, it was applied the proposed methodology by the International Commission of Radioprotection in its publication 30 to determine the absorbed doses by the personnel involved in the accident, with which the Commission determines the administrative consequences to those that it should be held the personnel and the directive of the service of nuclear medicine of the one nosocome. (Author)

PROYECTOS DE INTEGRACIÓN EN AMÉRICA LATINA DURANTE EL SIGLO XX. UNA MIRADA A LA INTEGRACIÓN REGIONAL EN EL SIGLO XXI

Directory of Open Access Journals (Sweden)

César Augusto Bermudez Torres

2010-04-01

Full Text Available Desde el siglo XIX, con la formación de los Estados nacionales en Latinoamérica, se han promovido proyectos integracionistas aún no concluidos. Actualmente, se resalta la necesidad de la integración entre países en distintos aspectos: económico, político, militar, diplomático. El propósito de este artículo es exponer las razones por las cuales el "panamericanismo" impuesto por los Estados Unidos se convirtió en el principal obstáculo para la consolidación de un verdadero proyecto de integración latinoamericano durante la primera mitad del siglo XX. Finalmente, después de realizar un recorrido por distintos intentos de integración durante la segunda mitad del siglo XX (observando las dificultades que ha tenido históricamente la comunidad regional, se pretende analizar la experiencia del Mercosur como el más consolidado proyecto de integración latinoamericano vigente en los comienzos del siglo XXI, en el ámbito económico e, incluso, político.

Inventory of Federal energy-related environment and safety research for FY 1977. Volume IV. Indices

Energy Technology Data Exchange (ETDEWEB)

1978-07-01

This volume contains indexes useful for accessing projects contained in the FY 1977 Federal Inventory. The indexing has been greatly broadened this year to provide hard copy users with greater flexibility in locating projects. The Inventory projects are printed sequentially by log number. An inventory log number is a unique number assigned to each project from a block of numbers set aside for each agency. The association of agencies with blocks of log numbers is found in the table of contents of the Index (Volume III).

[Blood volume for biochemistry determinations--laboratory needs and everyday practice].

Science.gov (United States)

Sztefko, Krystyna; Mamica, Katarzyna; Bugajska, Jolanta; Maziarz, Barbara; Tomasik, Przemysław

2014-01-01

Blood loss due to diagnostic phlebotomy jest a very serious problem, especially for newborn, infants and critically ill patients on intensive care units. Although single blood loss can be easily tolerated in adults, in small babies and in patients who are frequently monitored based on laboratory tests iatrogenic anaemia can occur. To evaluate the blood volume drawn for routine biochemistry tests in relation to patient age and the number of parameters requested. Blood volume drawn for routine biochemistry measurements from patients hospitalized in University Children's Hospital (N = 2980, children age from one day to 18 years) and in University Hospital (N = 859, adults, aged > 1.8 years) in Cracow has been analyzed. Blood volume was calculated based on regular tube diameter and blood heights in the tube. In case of microvettes the blood volume was 0.2 ml. Statistical analysis has been performed by using PRISM 5.0. The statistical significance was set at p nurses and doctors should include the information about current laboratory automation and methods miniaturization; 2) The amount of blood volume needed by laboratory for the requested number of tests should always be taken into account when diagnostic phlebotomy is necessary.

[Target volume margins for lung cancer: internal target volume/clinical target volume].

Science.gov (United States)

Jouin, A; Pourel, N

2013-10-01

The aim of this study was to carry out a review of margins that should be used for the delineation of target volumes in lung cancer, with a focus on margins from gross tumour volume (GTV) to clinical target volume (CTV) and internal target volume (ITV) delineation. Our review was based on a PubMed literature search with, as a cornerstone, the 2010 European Organisation for Research and Treatment of Cancer (EORTC) recommandations by De Ruysscher et al. The keywords used for the search were: radiotherapy, lung cancer, clinical target volume, internal target volume. The relevant information was categorized under the following headings: gross tumour volume definition (GTV), CTV-GTV margin (first tumoural CTV then nodal CTV definition), in field versus elective nodal irradiation, metabolic imaging role through the input of the PET scanner for tumour target volume and limitations of PET-CT imaging for nodal target volume definition, postoperative radiotherapy target volume definition, delineation of target volumes after induction chemotherapy; then the internal target volume is specified as well as tumoural mobility for lung cancer and respiratory gating techniques. Finally, a chapter is dedicated to planning target volume definition and another to small cell lung cancer. For each heading, the most relevant and recent clinical trials and publications are mentioned. Copyright © 2013. Published by Elsevier SAS.

The KamLAND full-volume calibration system

Energy Technology Data Exchange (ETDEWEB)

Berger, B E [Department of Physics, Colorado State University, Fort Collins, Colorado 80523 (United States); Busenitz, J; Classen, T; Keefer, G; McKee, D; Piepke, A [Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487 (United States); Decowski, M P; Elor, G; Frank, A; Freedman, S J; Fujikawa, B K; Galloway, M; Gray, F; Hsu, L; Ichimura, K; Kadel, R; Lendvai, C; O' Donnell, T [Physics Department, University of California, Berkeley and Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Dwyer, D A [W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125 (United States); Heeger, K M [Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)] (and others)

2009-04-15

We have successfully built and operated a source deployment system for the KamLAND detector. This system was used to position radioactive sources throughout the delicate 1-kton liquid scintillator volume, while meeting stringent material cleanliness, material compatibility, and safety requirements. The calibration data obtained with this device were used to fully characterize detector position and energy reconstruction biases. As a result, the uncertainty in the size of the detector fiducial volume was reduced by a factor of two. Prior to calibration with this system, the fiducial volume was the largest source of systematic uncertainty in measuring the number of antineutrinos detected by KamLAND. This paper describes the design, operation and performance of this unique calibration system.

The KamLAND Full-Volume Calibration System

Energy Technology Data Exchange (ETDEWEB)

KamLAND Collaboration; Berger, B. E.; Busenitz, J.; Classen, T.; Decowski, M. P.; Dwyer, D. A.; Elor, G.; Frank, A.; Freedman, S. J.; Fujikawa, B. K.; Galloway, M.; Gray, F.; Heeger, K. M.; Hsu, L.; Ichimura, K.; Kadel, R.; Keefer, G.; Lendvai, C.; McKee, D.; O' Donnell, T.; Piepke, A.; Steiner, H. M.; Syversrud, D.; Wallig, J.; Winslow, L. A.; Ebihara, T.; Enomoto, S.; Furuno, K.; Gando, Y.; Ikeda, H.; Inoue, K.; Kibe, Y.; Kishimoto, Y.; Koga, M.; Minekawa, Y.; Mitsui, T.; Nakajima, K.; Nakajima, K.; Nakamura, K.; Owada, K.; Shimizu, I.; Shimizu, Y.; Shirai, J.; Suekane, F.; Suzuki, A.; Tamae, K.; Yoshida, S.; Kozlov, A.; Murayama, H.; Grant, C.; Leonard, D. S.; Luk, K.-B.; Jillings, C.; Mauger, C.; McKeown, R. D.; Zhang, C.; Lane, C. E.; Maricic, J.; Miletic, T.; Batygov, M.; Learned, J. G.; Matsuno, S.; Pakvasa, S.; Foster, J.; Horton-Smith, G. A.; Tang, A.; Dazeley, S.; Downum, K. E.; Gratta, G.; Tolich, K.; Bugg, W.; Efremenko, Y.; Kamyshkov, Y.; Perevozchikov, O.; Karwowski, H. J.; Markoff, D. M.; Tornow, W.; Piquemal, F.; Ricol, J.-S.

2009-03-05

We have successfully built and operated a source deployment system for the KamLAND detector. This system was used to position radioactive sources throughout the delicate 1-kton liquid scintillator volume, while meeting stringent material cleanliness, material compatibility, and safety requirements. The calibration data obtained with this device were used to fully characterize detector position and energy reconstruction biases. As a result, the uncertainty in the size of the detector fiducial volume was reduced by a factor of two. Prior to calibration with this system, the fiducial volume was the largest source of systematic uncertainty in measuring the number of antineutrinos detected by KamLAND. This paper describes the design, operation and performance of this unique calibration system.

DoD and Commercial Advanced Waveform Developments and Programs with Multiple Nunn-McCurdy Breaches. Volume 5

Science.gov (United States)

2014-01-01

and insightful reviews of our report. It is a stron- ger document because of their efforts. xxi Abbreviations 2G second generation 3G third...in the commercial world. LTE includes a set of standards developed by 3GPP for mobile 3G and 4G mobile communications. The currently fielded...generation ( 2G ) digital mobile phone system, Global System for Mobile Communications (GSM). The GSM standard was developed by the European

Teaching Directed Numbers at Secondary School Level. Series of Caribbean Volunteer Publications, No. 7.

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Voluntary Services Overseas, Castries (St. Lucia).

This book is a collection of teaching strategies and activities for teachers of secondary mathematics. This volume is the product of a workshop that focused on student understanding of directed numbers. Suggested teaching methods include introducing the number concept, using a number line, number strips, monograms, bottle top addition and…

40 CFR 80.250 - How is the small refiner sulfur baseline and volume determined?

Science.gov (United States)

2010-07-01

...=Baseline volume. VI=Volume of gasoline batch i. n = Total number of batches of gasoline produced from....245(a)(3); or, for a foreign refinery, the total number of batches of gasoline produced and imported... gasoline produced and imported into the U.S. pursuant to § 80.245(c)(2)). i = Individual batch of gasoline...

Volume 9 Number 1

African Journals Online (AJOL)

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the villages by a variety of small scale methods into many different products that cater for the local preferences and for industrial use. The popular form in which cassava is eaten in West Africa is in a ... weighed using analytical weighing balance and added to 10 ml of sterile distilled water in a test tube. The content was then ...

Volume 9 Number 1

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PHYSICOCHEMICAL PROPERTIES OF SORGHUM-PIGEON PEA COMPOSITE. BLEND USED FOR THE .... after cleaned, sorted was milled into flour, stored and designated as a ...... L. verdc) and sweet potato (Ipomoea batatas) flour.

Volume 9 Number 2

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Hunger at rural household level can be reduced if post harvest surpluses are properly preserved. The Nigerian local government should encourage community food preservation through cooperative societies, provision of necessary infrastructure, funding and education. Key words: Rural, Households, Food preservation ...

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insufficient energy reserves for regrowth (Jung et al., 1994). ... temperature, solar radiation, relative humidity, ... Hydrogen. 3.2. Aluminium. 0.8. C.E.C.. 8.4. Month. Jan. Feb. March. Apr. May .... the year, the pure verano stylo swards produced.

Volume 9 Number 3

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feeding pattern and type of infant formula advertisement seen. Data collected were analyzed using frequency ... authorities have indicated the advantages and disadvantages of both types of infant feeding. (ACC/SCN, 2000; Lucas et al., 1992; ...

Volume 9 Number 2

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with large succulent leaves while the male plants produce leaves that are scrawny, small and less attractive. Farmers therefore prefer the females to the males. Unfortunately, it is very difficult to differentiate the males from the females until the plants begin to flower. At this stage of development, the male plants begin to show.

Volume 9 Number 2

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Clay content and ratios of exchangeable cations are highly dependent on characteristics of soil parent material and deferential effect of ... (intrinsic or extrinsic) on soil structure have been established. This is probably as a result of great ... classification according to Keys to Soil Taxonomy. (FAO/IUSS, 2006, Soil Survey Staff, ...

Volume 9 Number 2

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stored beyond 21 days at 28 oC with no mould or coliform growth. Key words: .... minutes to inactivate the pathogens in a water bath and ... fermented for 12 hours at room temperature after which it was ...... Culture. Media, Ingredients and other.

Volume 9 Number 3

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Agro-Science Journal of Tropical Agriculture, Food, Environment and Extension ... There is therefore an urgent need to find alternative sources of plant protein. ... candidates to fill the gap created by high cost of ... Mucuna is consumed by the people of ... one of the best green manure, cover crops and ... hallucinations and.

Volume 9 Number 2

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standard curve was prepared with the absorbance values and the concentration of phosphate in the sample was extrapolated from the standard curve. Nitrate. Nitrate was determined by the spectrophotometric sodium ... plating presumptive positive samples on Mac. Conkay agar. Incubation was done at 350C for 48 h.

Volume 9 Number 3

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hundred and sixty randomly selected women marketers in Enugu South area constituted the sample size for the ... on best ways to acquire farm inputs and distribute the ... are invisible workforce and the unacknowledged backbone of ... food security, economic empowerment and ... recommended farm practices. What are ...

Volume 9 Number 3

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especially the field insects have been reported by researchers ... al., 1972). If the approach is successful, it will be of great ... assess the effects of citrus peel extract on the egg hatch inhibition and on ... The two factors were studied in rates for.

Volume 9 Number 1

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Key words: Block, Pattern, Technology, Clothing Industry, Nigerian's economy ... workers in design, manufacturing and ... blocks and they vary in details, methods of ..... Pattern. Making by the Flat-Pattern Method. (7th ed.). New York: Macmillan.

Volume 9 Number 1

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payment for all initial assemblage, storage, processing ... offer farmers or firms more than they can do themselves. Besides ... The broad objective of the study is to analyse .... Decision rule: if the mean score is ≥ 2.5; ..... Policy. Enugu: Fulladu Publishing. Company. Barallat, J. E., W. McLaughlin and D.R. Lee ... implications.

Volume 9 Number 3

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Fourteen (14) crop residues and eleven (11) agro-industrial by- products were identified. .... 7. 2. 7. 5.38. Adaka. 4. 6. 6. 12. 3. 10. 2. 3. 5.75. Akile. 27. 50. 22. 4. 3. 7. 23. 12. 18.5. Wurukum. -. 3. 5. 18. 2 ..... Inc. New York. Tegbe, T.S.B. (1981).

Volume 9 Number 1

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cassava stems in six different cassava-growing locations of Akwa Ibom State were .... up to one litre with distilled water. Twenty grammes each of agar and glucose were added. The mixture was boiled on a hot plate of a ... germ tubes.

Volume 9 Number 3

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cropping system by influencing the release of potassium from the soil inert potassium reserve. Defoer et al., (2000) noted that when plants take up potassium, the equilibrium between the dynamic and inert reserve is temporally disrupted, some of the exchangeable potassium must then be released into the soil solution to re-.

Volume 9 Number 3

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The mean final weight, FCR and PER of the fish fed trial diets were not significantly different (p>0.05) from ... Fish farmers can therefore explore the use of WCRM as an alternative to maize meal in ..... fish muscle. ... The physiology of fishes. In:.

Volume 9 Number 3

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among farmers in southern Borno State. Data for the ..... northern Nigeria. Adesina and ... New evidence of inter-farm differences in. Bangladesh. ... Social impact of Soybean in Nigeria's Southern Guinea. Savanna. International Institute for.

Volume 9 Number 2

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In a study to determine the effects of soil type and fertilizer application on maize performance and yiel d stability ... reducing luxury input and luxury consumption. In an earlier ..... analytical data would give good yield response and stability of ...

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South Western part of Imo State (figure 1).It lies between ... 1. Crop plots near living homes: These were backyard/kitchen garden sites of local residents ... extraction of their insect contents. .... orders are supported by Imms (1964), Gold et al.

Espacio y tiempo en el siglo XXI: velocidad, instantaneidad y su repercusión en la comunicación humana

Directory of Open Access Journals (Sweden)

Germán Llorca Abad

2015-12-01

Full Text Available El espacio y el tiempo son dos conceptos que permiten al ser humano poner orden y comprender aquello que le rodea. La digitalización que caracteriza al siglo XXI ha resignificado estos parámetros reduciendo su valor a un aquí y ahora, minimizando las distancias y los márgenes temporales. El presente artículo expone en primer lugar un estado de la cuestión sobre el estudio del espacio y del tiempo y la influencia de la tecnología en estos conceptos. Asimismo reflexiona sobre la celeridad que domina los ritmos diarios; cómo las nuevas tecnologías han fomentado una dictadura de la instantaneidad que se ha normalizado sin cuestionar sus consecuencias. El espacio y el tiempo también se confunden en la red. Lo público y lo privado convergen en ella. La información que los usuarios comparten en Internet puede ser usada con fines poco lícitos. Finalmente, el artículo aborda el problema de exclusión social asociado a la brecha digital y propone soluciones para una alfabetización digital que fomente el uso responsable de las herramientas de comunicación digital.

Atmospheric Electricity and Tethered Aerostats, Volume 2

Science.gov (United States)

1976-05-11

EASTERN TEST RANGE PATRICK AIR FORCE BASE, FLORIDA 11 MAY 1976 028 099 AFETR -TR-76-07 ATMOSPHERIC ELECTRICITY AND ~TETHERED AEROSTATS, VOLUME 11 Range...number) Atmospheric Electricity Lightning- Effects , Protection, Warning Balloons Systems Conducting & Nonconducting Tethers Potential Gradient Anomalies...if necessary and Identify by block number) Part A, "Atmospheric Electrical Effects of and on Tethered Balloon Systems," by Latham includes airborne

Volume dependence of N-body bound states

Science.gov (United States)

König, Sebastian; Lee, Dean

2018-04-01

We derive the finite-volume correction to the binding energy of an N-particle quantum bound state in a cubic periodic volume. Our results are applicable to bound states with arbitrary composition and total angular momentum, and in any number of spatial dimensions. The only assumptions are that the interactions have finite range. The finite-volume correction is a sum of contributions from all possible breakup channels. In the case where the separation is into two bound clusters, our result gives the leading volume dependence up to exponentially small corrections. If the separation is into three or more clusters, there is a power-law factor that is beyond the scope of this work, however our result again determines the leading exponential dependence. We also present two independent methods that use finite-volume data to determine asymptotic normalization coefficients. The coefficients are useful to determine low-energy capture reactions into weakly bound states relevant for nuclear astrophysics. Using the techniques introduced here, one can even extract the infinite-volume energy limit using data from a single-volume calculation. The derived relations are tested using several exactly solvable systems and numerical examples. We anticipate immediate applications to lattice calculations of hadronic, nuclear, and cold atomic systems.

Instructional Exchange. Volume 2, Number 1-6, September 1990-March 1991.

Science.gov (United States)

Serafin, Ana Gil, Ed.

1991-01-01

This document consists of six issues of a newsletter that provides a forum for the sharing of research findings and instructional strategies by faculty of Western Michigan University. Issue Number 1 addresses writing in the Writing Across the Curriculum Program with notification of a faculty workshop, hints on how to encourage good writing, and a…

El Negocio Renta ble del Siglo XXI: La Trata de Personas, el caso de los esclavos colombianos resca tados en Argentina en 2013 - The Profitable Business of XXI Century: Human Trafficking, the case of Colombian slaves rescued in Argentinain 2013

Directory of Open Access Journals (Sweden)

TORRES ARTEAGA, Lyda María

2014-06-01

Full Text Available It’s amazing being in the XXI century keep talking about phenomena such as slavery, which has pushed the boundaries of time and for generations has kept among us, in relation to new modern slavery cases of Bolivia and Brazil are widely acknowledged, without But today manifest more strongly sensitize us different facts on the issue and shows us even closer than we had imagined. Precisely in 2013 were able to rescue a group of about 200 Colombians were subjected under a network trafficking that led to Argentina to be exploited at work , a situation that calls us to be more vigilant against the new form of slavery given today through deception and bids to improve the standard of living . The network of Colom- bians kept under slave labor more than 200 nationals, was made up of 23 people, who were responsible for making contact with victims and move them to Argentina under the delusion that they would work in the form of cooperative once arrived in the country had no chance of return. It should be mentioned that in recent years, trafficking for labor and sexual exploitation has been placed on the political and social agenda, thanks to the media exposure they acquired different cases around the world, which has led it to be a topic of wide interest and joint work between civil society, state and international agencies and / or foundations of the same charge .

Carlos Hugo Molina Saucedo. Andrés Ibáñez, un caudillo para el siglo XXI. La Comuna de Santa Cruz de la Sierra de 1876; Andrey Schelchkov. Andrés Ibáñez y la Revolución de la Igualdad en Santa Cruz: primer ensayo de federalismo en Bolivia, 1876-1877

Directory of Open Access Journals (Sweden)

Clayton Mendonça Cunha Filho

2014-11-01

Full Text Available Carlos Hugo Molina Saucedo. Andrés Ibáñez, un caudillo para el siglo XXI. La Comuna de Santa Cruz de la Sierra de 1876Andrey Schelchkov. Andrés Ibáñez y la Revolución de la Igualdad en Santa Cruz: primer ensayo de federalismo en Bolivia, 1876-1877

Medical Surveillance Monthly Report (MSMR). Volume 3, Number 2, March 1997

Science.gov (United States)

1997-03-01

1997 Total number Environmental Injuries Viral Hepatitis Malaria Varicella Reporting of reports Active Duty CO Active Active Other MTF/Post...113.5 -25.5 -22.5% .05 New Mexico 48 65.9 -17.9 -27.1% .05 North Dakota 22 34.5 -12.5 -36.3% .05 Minnesota 114 138.1 -24.1 -17.5% .05 Table 1

Handbook on the physics and chemistry of rare earths: Volume 17

International Nuclear Information System (INIS)

Gschneidner, K.A. Jr; Eyring, L.; Choppin, G.R.; Lander, G.H.

1993-10-01

This volume of the handbook is the first of a three volume set of reviews devoted to the interrelationships, similarities, differences and contrasts of the lanthanide and actinide series of elements. The volume contains eight chapters (numbered 110-117) concerned with some of the physical aspects of lanthanide and actinide series. The first three chapters are theoretical in nature and the last five are more heavily oriented towards experimental studies

The Coast Artillery Journal. Volume 80, Number 5, September-October 1937

Science.gov (United States)

1937-10-01

controls the issue, may be called the god of war"? That is surely good, yet it antedates by more than 2,000 years a brilliant Corsican’s remorseful...number of ::> ’£ 1automatic rifles per oraanization has 1l0t vet been deCi ed.::> • \\Vhen this is determined it will be announced through the medium of

High call volume at poison control centers: identification and implications for communication.

Science.gov (United States)

Caravati, E M; Latimer, S; Reblin, M; Bennett, H K W; Cummins, M R; Crouch, B I; Ellington, L

2012-09-01

High volume surges in health care are uncommon and unpredictable events. Their impact on health system performance and capacity is difficult to study. To identify time periods that exhibited very busy conditions at a poison control center and to determine whether cases and communication during high volume call periods are different from cases during low volume periods. Call data from a US poison control center over twelve consecutive months was collected via a call logger and an electronic case database (Toxicall®).Variables evaluated for high call volume conditions were: (1) call duration; (2) number of cases; and (3) number of calls per staff member per 30 minute period. Statistical analyses identified peak periods as busier than 99% of all other 30 minute time periods and low volume periods as slower than 70% of all other 30 minute periods. Case and communication characteristics of high volume and low volume calls were compared using logistic regression. A total of 65,364 incoming calls occurred over 12 months. One hundred high call volume and 4885 low call volume 30 minute periods were identified. High volume periods were more common between 1500 and 2300 hours and during the winter months. Coded verbal communication data were evaluated for 42 high volume and 296 low volume calls. The mean (standard deviation) call length of these calls during high volume and low volume periods was 3 minutes 27 seconds (1 minute 46 seconds) and 3 minutes 57 seconds (2 minutes 11 seconds), respectively. Regression analyses revealed a trend for fewer overall verbal statements and fewer staff questions during peak periods, but no other significant differences for staff-caller communication behaviors were found. Peak activity for poison center call volume can be identified by statistical modeling. Calls during high volume periods were similar to low volume calls. Communication was more concise yet staff was able to maintain a good rapport with callers during busy call periods

Effects of the volume and shape of voxels on the measurement of phantom volume using three-dimensional magnetic resonance imaging

International Nuclear Information System (INIS)

Mori, Koichi; Tonami, Syuichi; Nakamura, Mamoru; Kuranishi, Makoto; Hagino, Hirofumi; Saitou, Osamu; Yotsutsuji, Takashi

2002-01-01

Recently, an increasing number of volumetric studies of the human brain have been reported, using three-dimensional magnetic resonance imaging (3D-MRI). To our knowledge, however, there are few investigations on the relation of the volume and shape of voxels which constitute and MR image to the accuracy in volume measurement of an imaged object. The purpose of this study was to evaluate the effect of a different shape of voxel, that is, isotropic or anisotropic, as well as the volume of a voxel on the volume measurement based on the original image data and multiplanar reconstruction (MPR) data, respectively. In the experiment, we repeatedly acquired contiguous sagittal images of a single globe phantom with a known volume under the condition in which the volume and shape of voxels varied, on a 1.5 T MR scanner. We used a gradient echo sequence (3D FLASH). The volume of the globe phantom from both original images and MPR ones was measured on workstations employing a semi-automated local thresholding technique. As a result, the smaller volume of voxels tended to give us the more correct measurement, and an isotropic voxel reduced measurement errors as compared to an anisotropic one. Therefore, it is concluded that the setting of voxel with both an isotropic shape and small volume, e.g., a voxel of 1 mm x 1 mm x 1 mm at present, is recommended in order to get a precise volume measurement using 3D-MRI. (author)

[Effects of the volume and shape of voxels on the measurement of phantom volume using three-dimensional magnetic resonance imaging].

Science.gov (United States)

Mori, Koichi; Hagino, Hirofumi; Saitou, Osamu; Yotsutsuji, Takashi; Tonami, Syuichi; Nakamura, Mamoru; Kuranishi, Makoto

2002-01-01

Recently, an increasing number of volumetric studies of the human brain have been reported, using three-dimensional magnetic resonance imaging (3D-MRI). To our knowledge, however, there are few investigations on the relation of the volume and shape of voxels which constitute an MR image to the accuracy in volume measurement of an imaged object. The purpose of this study was to evaluate the effect of a different shape of voxel, that is, isotropic or anisotropic, as well as the volume of a voxel on the volume measurement based on the original image data and multiplanar reconstruction (MPR) data, respectively. In the experiment, we repeatedly acquired contiguous sagittal images of a single globe phantom with a known volume under the condition in which the volume and shape of voxels varied, on a 1.5T MR scanner. We used a gradient echo sequence (3D FLASH). The volume of the globe phantom from both original images and MPR ones was measured on workstations employing a semi-automated local thresholding technique. As a result, the smaller volume of voxels tended to give us the more correct measurement, and an isotropic voxel reduced measurement errors as compared to an anisotropic one. Therefore, it is concluded that the setting of voxel with both an isotropic shape and small volume, e.g., a voxel of 1 mm x 1 mm x 1 mm at present, is recommended in order to get a precise volume measurement using 3D-MRI.

Executive dysfunction and the relation with behavioral problems in children with 47,XXY and 47,XXX.

Science.gov (United States)

van Rijn, S; Swaab, H

2015-02-01

Neuroimaging studies have shown that having an extra X chromosome is associated with abnormal structure and function of brain areas in the frontal lobe, which is crucially involved in executive functioning. However, there is little of knowledge of the type and severity of executive dysfunction, and the impact on emotional and behavioral problems. The present study aims to provide in this. In total, 40 children (23 boys with 47,XXY and 17 girls with 47,XXX) with an extra X chromosome and 100 non-clinical controls (47 boys and 53 girls) participated in the study. The participants were 9-18 years old. Processing speed and executive functioning were assessed using the Amsterdam Neuropsychological Testbattery (ANT) and the Dysexecutive Questionnaire (DEX). Problems in emotional and behavioral functioning were assessed with the Childhood Behavior Checklist (CBCL). Children with an extra X chromosome showed deficits in inhibition, mental flexibility, sustained attention and visual working memory. Parental report showed high levels of everyday manifestations of executive dysfunction. More severe inhibition difficulties were associated with higher levels of thought problems, aggression and rule breaking behavior. Boys and girls with an extra X chromosome could not be differentiated based on severity of executive dysfunction, however, girls had lower information processing speed than boys. These findings suggest that executive dysfunction may be part of the phenotype of children with an extra X chromosome, impacting the ability to function adequately in everyday life. Furthermore, children with impairments in inhibition may have more problems in regulating their thinking, emotions and behavior. © 2015 John Wiley & Sons Ltd and International Behavioural and Neural Genetics Society.

A Crise de paradigmas e a ressignificação do conhecimento para o século XXI

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Ana Maria Dalla Zen

2010-12-01

Full Text Available O artigo discute a produção do conhecimento no século XXI, a partir da crise entre o paradigma clássico e o emergente. Destaca a incompetência da ciência para a solução dos principais problemas decorrentes do avanço científico, em especial o fenômeno da exclusão social. Analisa o princípio da complexidade e a sua relação com a construção de uma nova ética para o futuro. Mostra a incapacidade da disciplinaridade para dar conta dos problemas decorrentes do avanço científico deste século. Enfatiza a interdisciplinaridade para um primeiro passo na solução dos mesmos e, como transposição paradigmática, valoriza o princípio da transdisciplinaridade. Propõe os conceitos de permacultura, desenvolvimento sustentável, biologia do conhecimento e ecologia social como ferramentas para concretizar a interdisciplinaridade na produção do conhecimento. Conclui que a expansão de formas de democracia participativa é uma alternativa de gestão pública útil para equacionar o problema da exclusão social. E que se trata de um mecanismo de participação popular que permite às comunidades atuarem no controle público do Estado e do governo, e podem criar novas perspectivas de vida pública.

Color-coded volume rendering for three-dimensional reconstructions of CT data

International Nuclear Information System (INIS)

Rieker, O.; Mildenberger, P.; Thelen, M.

1999-01-01

Purpose: To evaluate a technique of colored three-dimensional reconstructions without segmentation. Material and methods: Color-coded volume rendered images were reconstructed from the volume data of 25 thoracic, abdominal, musculoskeletal, and vascular helical CT scans using commercial software. The CT volume rendered voxels were encoded with color in the following manner. Opacity, hue, lightness, and chroma were assigned to each of four classes defined by CT number. Color-coded reconstructions were compared to the corresponding grey-scale coded reconstructions. Results: Color-coded volume rendering enabled realistic visualization of pathologic findings when there was sufficient difference in CT density. Segmentation was necessary in some cases to demonstrate small details in a complex volume. Conclusion: Color-coded volume rendering allowed lifelike visualisation of CT volumes without the need of segmentation in most cases. (orig.) [de

Case volumes of intra-arterial and intravenous treatment of ischemic stroke in the USA.

Science.gov (United States)

Hirsch, J A; Yoo, A J; Nogueira, R G; Verduzco, L A; Schwamm, L H; Pryor, J C; Rabinov, J D; González, R G

2009-07-01

Ischemic stroke is a major cause of disability and death in the USA. Intravenous tissue plasminogen activator (t-PA) remains underutilized. With the development of newer intra-arterial reperfusion therapies, there is increased opportunity to address the more devastating large-vessel occlusions. We seek to identify the numbers of patients with stroke treated with intravenous and intra-arterial therapies, as well as to estimate the potential number of intra-arterial cases in the foreseeable future. We performed a literature search to determine case volumes of intravenous t-PA use. We extrapolated the current case volume of intra-arterial stroke therapies from the numbers of cases in which the Merci retrieval device was used. In order to estimate the potential numbers of intra-arterial stroke cases, we characterized the percentage of patients with stroke who received intra-arterial therapy at two leading stroke centers. We applied these percentages to the numbers of patients with stroke seen at the top 100, 200 and 500 stroke centers by volume. The rate of intravenous t-PA use is 2.4-3.6%, resulting in 15 000-22 000 cases/year in the USA. The estimated case volume of intra-arterial therapies is 3500-7200 in 2006. Based on data from St. Luke's Brain and Stroke Institute and Massachusetts General Hospital, approximately 5-20% of patients with ischemic stroke can be treated with intra-arterial therapies. Extrapolating this to the top 500 stroke centers by volume, the potential number of intra-arterial cases in the USA is 10 400-41 500/year. Based on the current numbers of intra-arterial cases, our theoretical model identifies a potential for significant growth of this stroke therapy.

The effect of duty hour regulation on resident surgical case volume in otolaryngology.

Science.gov (United States)

Curtis, Stuart H; Miller, Robert H; Weng, Cindy; Gurgel, Richard K

2014-10-01

Evaluate the effect of duty hour regulation on graduating otolaryngology resident surgical case volume and analyze trends in surgical case volume for Accreditation Council for Graduate Medical Education (ACGME) key indicator cases from 1996 to 2011. Time-trend analysis of surgical case volume. Nationwide sample of otolaryngology residency programs. Operative logs from the American Board of Otolaryngology and ACGME for otolaryngology residents graduating in the years 1996 to 2011. Key indicator volumes and grouped domain volumes before and after resident duty hour regulations (2003) were calculated and compared. Independent t test was performed to evaluate overall difference in operative volume. Wilcoxon rank sum test evaluated differences between procedures per time period. Linear regression evaluated trend. The average total number of key indicator cases per graduating resident was 440.8 in 1996-2003 compared to 500.4 cases in 2004-2011, and overall average per number of key indicators was 31.5 and 36.2, respectively (P = .067). Four key indicator cases showed statistically significant (P otolaryngology residents. The overall trend in operative volume is increasing for several specific key indicators. © American Academy of Otolaryngology—Head and Neck Surgery Foundation 2014.

EDUCAR EN VALORES EN EL SIGLO XXI: UNA REFLEXIÓN PEDAGÓGICA MÁS ALLÁ DE LA IMPOSICIÓN Y LA COSTUMBRE. EDUCATION WITH VALUE IN THE TWENTY-FIRST CENTURY: AN EDUCATIONAL REFLECTION BEYOND THE IMPOSITION AND CUSTOM

OpenAIRE

Escobar-Galo, Juan Pablo

2013-01-01

Reflexionar sobre los valores y la formación de los mismos en el siglo XXI es uno de los retos más importantes que debe asumir la pedagogía contemporánea, comprendiendo en un primer momento lo que esto significa y generando propuestas concretas para el desarrollo de la formación en valores.Este ensayo se apoya en la reflexión de pensadores contemporáneos que deciden afrontar el análisis de los valores y la formación de los mismos desde una visión diferente a la acostumbrada, sobre todo en la ...

Generalized Partial Volume

DEFF Research Database (Denmark)

Darkner, Sune; Sporring, Jon

2011-01-01

Mutual Information (MI) and normalized mutual information (NMI) are popular choices as similarity measure for multimodal image registration. Presently, one of two approaches is often used for estimating these measures: The Parzen Window (PW) and the Generalized Partial Volume (GPV). Their theoret...... of view as well as w.r.t. computational complexity. Finally, we present algorithms for both approaches for NMI which is comparable in speed to Sum of Squared Differences (SSD), and we illustrate the differences between PW and GPV on a number of registration examples....

No postnatal doubling of number of neurons in human Broca's areas (Brodmann areas 44 and 45)? A stereological study.

Science.gov (United States)

Uylings, H B M; Malofeeva, L I; Bogolepova, I N; Jacobsen, A M; Amunts, K; Zilles, K

2005-01-01

In this study we explored whether a postnatal doubling of the total number of neurons occurs in the human Brodmann areas 44 and 45 (Broca's area). We describe the most recent error prediction formulae and their application for the modern stereological estimators for volume and number of neurons. We estimated the number of neurons in 3D optical disector probes systematically random sampled throughout the entire Brodmann areas (BA) 44 and 45 in developing and young adult cases. In the relatively small number of male and female cases studied no substantial postnatal increase in total number of neurons occurred in areas 44 and 45; the volume of these areas reached adult values around 7 years. In addition, we did find indications that a shift from a right-over-left to a left-over-right asymmetry may occur in the volume of BA 45 during postnatal development. No major asymmetry in total number of neurons in BA 44 and 45 was detected.

Site Environmental Report for 1999 - Volume 1

Energy Technology Data Exchange (ETDEWEB)

Ruggieri, M

2000-08-12

Each year, Ernest Orlando Lawrence Berkeley National Laboratory prepares an integrated report on its environmental programs to satisfy the requirements of United States Department of Energy Order 231.1. The Site Environmental Report for 1999 is intended to summarize Berkeley Lab's compliance with environmental standards and requirements, characterize environmental management efforts through surveillance and monitoring activities, and highlight significant programs and efforts for calendar year 1999. The report is separated into two volumes. Volume I contains a general overview of the Laboratory, the status of environmental programs, and summary results from surveillance and monitoring activities. Each chapter in Volume I begins with an outline of the sections that follow, including any tables or figures found in the chapter. Readers should use section numbers (e.g., {section}1.5) as navigational tools to find topics of interest in either the printed or the electronic version of the report. Volume II contains the individual data results from monitoring programs.

El desafío de la comunicación gerencial, optimizando a la empresa del siglo XXI. Casos de análisis: corporación hotelera “Cayuga Sustainable Hospitality” y Hotel Ramada Herradura (2007-2011)

OpenAIRE

Abarca Amador, Ethel; Benach Sánchez, Fernando; Rodríguez Vargas, Fedra

2013-01-01

El presente proyecto final de graduación tuvo por tema de investigación: “Las Herramientas de Comunicación Gerencial (coaching gerencial, indagación apreciativa, programación neurolingüística y “world café”) y por título: “El desafío de la comunicación gerencial, optimizando a la empresa del siglo XXI. Casos de análisis: “Corporación Hotelera Cayuga Sustainable Hospitality” y “Hotel Ramada Herradura”. Surgió por el interés de los suscritos, de analizar y escudriñar, ¿Cómo los cambios generado...

Intersection layout, traffic volumes and accidents.

NARCIS (Netherlands)

Poppe, F.

1988-01-01

This paper reports on the accident research carried out as a part of a large project started in 1983. For this accident research an inventory was made of a large number of intersections.Recorded were layout features, accident data and estimates of traffic volumes. Attention will be given to the

Volume tables for red alder.

Science.gov (United States)

Floyd A. Johnson; R. M. Kallander; Paul G. Lauterbach

1949-01-01

The increasing importance of red alder as a commercial species in the Pacific Northwest has prompted the three agencies listed above to pool their tree measurement data for the construction of standard regional red alder volume tables. The tables included here were based on trees from a variety of sites and form classes. Approximately one quarter of the total number of...

The XXI century college students in Mexico: from passivity to autonomy and critical thinking Los estudiantes universitarios del siglo XXI en México: de la pasividad a la autonomía y al pensamiento crítico

Directory of Open Access Journals (Sweden)

María Zúñiga Sánchez

2012-07-01

Full Text Available Normal.dotm 0 0 1 152 870 Universidad de Salamanca 7 1 1068 12.0 0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} XXI century has brought an enormous amount of transformations in many spheres of social, educative, technological, scientific and familiar life. These transformations have touched on a particular way the educative ambit, with reforms in their educational models and thus college students make a break with positivist paradigms in which student was seen as a restricted supply by the professor programmer contingencial arrangements, which are set even before the instructional situation (Hernández Rojas, 1998. That subject, whose school performance and learning could be fixed from the outside, is in a process of emancipation and awareness now actively involved in its own learning. Many universities in Mexico are working to give a decisive turn providing autonomy in their students, by models such as constructivism, at the same time they required critical thinking, but this autonomy is not authentic, students are subsumed into their institution curriculum and they generate learning that is limited to what will be assess, yet student is reified. Normal.dotm 0 0 1 173 987 Universidad de Salamanca 8 1 1212 12.0 0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso

[Hospitals failing minimum volumes in 2004: reasons and consequences].

Science.gov (United States)

Geraedts, M; Kühnen, C; Cruppé, W de; Blum, K; Ohmann, C

2008-02-01

high number of hospitals that failed to achieve the minimum volumes in 2004, only few hospitals experienced consequences from the sickness funds. The reluctance of the payers may be explained, amongst others, by the small number of patients affected and the percentage of cases where legally accepted exceptions applied. In view of the partly unclear definitions of the exceptions and difficulties in the interpretation and execution of the minimum volumes in the hospitals and at the sickness fund level, it may be helpful to formulate more concrete instructions for the implementation of the standards.

Primary visual cortex volume and total neuron number are reduced in schizophrenia

DEFF Research Database (Denmark)

Dorph-Petersen, Karl-Anton; Pierri, Joseph H.; Wu, Qiang

2007-01-01

A number of studies that assessed the visual system in subjects with schizophrenia found impairments in early visual processing. Furthermore, functional imaging studies suggested changes in primary visual cortex activity in subjects with schizophrenia. Interestingly, postmortem studies of subject...

Language and Language Education: Working Papers of The National Languages Institute of Australia, Volume 1, Number 1.

Science.gov (United States)

Language and Language Education: Working Papers of the National Languages Institute of Australia, 1991

1991-01-01

This volume on language issues within Australia contains five research papers: "Patterns of Inter-Cultural Communication in Melbourne Factories: Some Research in Progress" (Michael Clyne); "Developing Proficiency Scales for Communicative Assessment" (D. E. Ingram, Elaine Wylie); "Rapid Profile: A Second Language Screening…

Studies of left ventricular volume estimation from single photon emission computed tomography

International Nuclear Information System (INIS)

Hiraki, Yoshio; Shimizu, Mitsuharu; Joja, Ikuo; Aono, Kaname; Yanagi, Hidekiyo; Indo, Haruaki; Seno, Yoshimasa; Teramoto, Shigeru; Nagaya, Isao.

1988-01-01

We studied the comparative accuracy of 99m Tc cardiac blood pool Single Photon Emission Computed Tomography (SPECT) for the measurement of left ventricular volume in 20 patients undergoing SPECT and single plane contrast left ventriculography (LVG). Left ventricular volume was calculated based on the total number of voxels in left ventricle. End-diastolic left ventricular volume (EDV) and end-systolic left ventricular volume (ESV) calculated from SPECT were compared with those from LVG. SPECT volume values showed a high degree of correlation with those by LVG (r = 0.923 for EDV, r = 0.903 for ESV). We appreciated the usefulness and accuracy of SPECT in measuring left ventricular volume because of its three-dimensional information. (author)

A methodology to relate octane numbers of binary and ternary n-heptane, iso-octane and toluene mixtures with simulated ignition delay times

KAUST Repository

Badra, Jihad A.

2015-08-11

Predicting octane numbers (ON) of gasoline surrogate mixtures is of significant importance to the optimization and development of internal combustion (IC) engines. Most ON predictive tools utilize blending rules wherein measured octane numbers are fitted using linear or non-linear mixture fractions on a volumetric or molar basis. In this work, the octane numbers of various binary and ternary n-heptane/iso-octane/toluene blends, referred to as toluene primary reference fuel (TPRF) mixtures, are correlated with a fundamental chemical kinetic parameter, specifically, homogeneous gas-phase fuel/air ignition delay time. Ignition delay times for stoichiometric fuel/air mixtures are calculated at various constant volume conditions (835 K and 20 atm, 825 K and 25 atm, 850 K and 50 atm (research octane number RON-like) and 980 K and 45 atm (motor octane number MON-like)), and for variable volume profiles calculated from cooperative fuel research (CFR) engine pressure and temperature simulations. Compression ratio (or ON) dependent variable volume profile ignition delay times are investigated as well. The constant volume RON-like ignition delay times correlation with RON was the best amongst the other studied conditions. The variable volume ignition delay times condition correlates better with MON than the ignition delay times at the other tested conditions. The best correlation is achieved when using compression ratio dependent variable volume profiles to calculate the ignition delay times. Most of the predicted research octane numbers (RON) have uncertainties that are lower than the repeatability and reproducibility limits of the measurements. Motor octane number (MON) correlation generally has larger uncertainties than that of RON.

Medical Surveillance Monthly Report (MSMR). Volume 17, Number 07, July 2010

Science.gov (United States)

2010-07-01

14. Knapik JJ, Reynolds KL, Harman E. Soldier load carriage: historical, physiological, biomechanical , and medical aspects. Mil Med. 2004 Jan;169(1...transport accidents and their sequelae 3110 2 2.4 Pedal cyclist involved in collision with motor vehicle 2970 1 1.2 Total 85 100% Figure 5. Number...corticosteroids on the biomechanical strength of rat rotator cuff tendon. J Bone Joint Surg Am. 2009 May; 91(5):1172-80. 7. Sode J, Obel N, Hallas J

Number Theory : A Seminar held at the Graduate School and University Center of the City University of New York

CERN Document Server

Chudnovsky, Gregory; Cohn, Harvey; Nathanson, Melvyn

1989-01-01

The New York Number Theory Seminar was organized in 1982 to provide a forum for the presentation and discussion of recent advances in higher arithmetic and its applications. Papers included in this volume are based on the lectures presented by their authors at the Seminar at the Graduate Center of C.U.N.Y. in 1985-88. Papers in the volume cover a wide spectrum of number theoretic topics ranging from additive number theory and diophantine approximations to algebraic number theory and relations with algebraic geometry and topology.

Bibliography on nuclear medicine. Volumes 28--30

International Nuclear Information System (INIS)

1975-07-01

References to 3177 publications related to nuclear medicine announced in Nuclear Science Abstracts (NSA) volumes 28(July-Dec. 1973), 29(Jan-June 1974), and 30(July-Dec. 1974) are contained in this bibliography. Subject, report number, and personal author indexes are included. (U.S.)

Las cadenas hoteleras en el mundo y evolución de su operación en México al inicio del siglo XXI

Directory of Open Access Journals (Sweden)

Alfonso de Jesús Jiménez Martínez

2008-12-01

Full Text Available Las cadenas hoteleras internacionales desempeñan un papel relevante en el sistema turístico internacional, y cada vez hay un mayor número de cuartos asociados a cadenas hoteleras en el mundo. Las más grandes, son empresas gigantescas que actúan a nivel global y con estrategias de escala planetaria. Las cadenas tienen particularidades específicas ligadas a la condición preponderante de los países desarrollados en la economía internacional, y su presencia mundial y regional está ligada a diversos factores que inciden en su funcionamiento. Actualmente, la dinámica de las grandes corporaciones se entiende más por la rentabilidad que promete a los accionistas que por la búsqueda de satisfacción del consumidor (el turista. En este texto se busca una aproximación a la identidad y la distribución regional de las cadenas en la oferta turística mundial y sus particularidades al inicio del siglo XXI. Se describe y analiza la evolución de esas cadenas en México de acuerdo con criterios de categoría y localización.

Reflexes sobre a economia poltica da comunicao e da cultura no sculo XXI Reflections about the Communications political and cultural economy on 21st century

Directory of Open Access Journals (Sweden)

Leonardo de Marchi

2012-01-01

Full Text Available Reunindo textos de autores referenciais de diferentes escolas da economia poltica da comunicao e da cultura (EPCC, esta coletnea apresenta um conjunto de reflexes que visa projetar a EPCC no sculo XXI. Tratando de temas como o conceito de indstrias criativas e dos dilogos tericos e metodolgicos entre a economia poltica e os estudos culturais. Busca-se desenvolver uma renovada agenda poltico-tecnolgica que d conta dos novos desafios para a produo, distribuio e consumo de informao e de bens culturais no capitalismo contemporneo.By gathering texts from referential authors of different schools of political economy of Communication and culture (PECC, this collection presents a set of ideas aimed at projecting the PECC into the 21th century. Addressing issues such as the concept of creative industries, theoretical and methodological dialogue between political economy and cultural studies, the book seeks to develop a renewed political and technological agenda that takes into account the new challenges for the production, circulation and consumption of information and cultural goods in contemporary capitalism.

UN MODELO DE EDUCACIÓN UNIVERSITARIA PARA VENEZUELA EN EL MARCO DEL SOCIALISMO DEL SIGLO XXI

Directory of Open Access Journals (Sweden)

Miguel Ángel Pineda

2011-01-01

Full Text Available El presente ensayo se basa en un análisis de la educación universitaria en el contexto socio-político de la realidad venezolana, en el período referencial es 2007-2013, centrado a partir de la promulgación de la Ley Orgánica de Educación (2009. Este estudio se desarrolló en la Unidad de Investigación de Análisis de Políticas Públicas y Desarrollo Socio-educativo de la Universidad de Carabobo. Tomando como referencias teóricas a E. Morin y J. Habermas, se desarrollan tres categorías presentes en la realidad de Venezuela: el Socialismo del Siglo XXI, el Estado Docente y la Autonomía Universitaria. El tratamiento metodológico parte del planteamiento de la premisa: el Nuevo Modelo de Educación Universitaria que está por construirse, se debe a la crisis del modelo cognitivo instrumental instituido en la Constitución de la República de Venezuela (1961, sus Leyes y Reglamentos. Al triangular las tres categorías se plantea, como valor agregado, concebir la educación a través de un proceso transdisciplinario, sustentado en una primera instancia por el ordenamiento jurídico que le dé concreción y sincronización en el tiempo y el movimiento. En el caso de la educación venezolana, se concluye que no se han producidos cambios significativos que nos indiquen que estamos en presencia de un nuevo modelo de educación. La educación universitaria sigue atada al modelo cognitivo instrumental, impidiendo cualquier cambio que desde su seno se pretenda impulsar, de manera que la nueva Ley de Educación Universitaria y el nuevo modelo de educación siguen diferido.

Number and location of drainage catheter side holes: in vitro evaluation.

Science.gov (United States)

Ballard, D H; Alexander, J S; Weisman, J A; Orchard, M A; Williams, J T; D'Agostino, H B

2015-09-01

To evaluate the influence of number and location of catheter shaft side holes regarding drainage efficiency in an in vitro model. Three different drainage catheter models were constructed: open-ended model with no side holes (one catheter), unilateral side hole model (six catheters with one to six unilateral side holes), and bilateral side hole model (six catheters with one to six bilateral side holes). Catheters were inserted into a drainage output-measuring device with a constant-pressure reservoir of water. The volume of water evacuated by each of the catheters at 10-second intervals was measured. A total of five trials were performed for each catheter. Data were analysed using one-way analysis of variance. The open-ended catheter had a mean drainage volume comparable to the unilateral model catheters with three, four, and five side holes. Unilateral model catheters had significant drainage volume increases up to three side holes; unilateral model catheters with more than three side holes had no significant improvement in drainage volume. All bilateral model catheters had significantly higher mean drainage volumes than their unilateral counterparts. There was no significant difference between the mean drainage volume with one, two, or three pairs of bilateral side holes. Further, there was no drainage improvement by adding additional bilateral side holes. The present in vitro study suggests that beyond a critical side hole number threshold, adding more distal side holes does not improve catheter drainage efficiency. These results may be used to enhance catheter design towards improving their drainage efficiency. Copyright © 2015 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.

Effect of pole number and slot number on performance of dual rotor permanent magnet wind power generator using ferrite magnets

Directory of Open Access Journals (Sweden)

Peifeng Xu

2017-05-01

Full Text Available Dual rotor permanent magnet (DRPM wind power generator using ferrite magnets has the advantages of low cost, high efficiency, and high torque density. How to further improve the performance and reduce the cost of the machine by proper choice of pole number and slot number is an important problem to be solved when performing preliminarily design a DRPM wind generator. This paper presents a comprehensive performance comparison of a DRPM wind generator using ferrite magnets with different slot and pole number combinations. The main winding factors are calculated by means of the star of slots. Under the same machine volume and ferrite consumption, the flux linkage, back-electromotive force (EMF, cogging torque, output torque, torque pulsation, and losses are investigated and compared using finite element analysis (FEA. The results show that the slot and pole number combinations have an important impact on the generator properties.

Natural history of seminiferous tubule degeneration in Klinefelter syndrome

DEFF Research Database (Denmark)

Aksglaede, Lise; Wikström, Anne M; Rajpert-De Meyts, Ewa

2006-01-01

Klinefelter syndrome (47,XXY) is characterized by small, firm testis, gynaecomastia, azoospermia and hypergonadotropic hypogonadism. Degeneration of the seminiferous tubules in 47,XXY males is a well-described phenomenon. It begins in the fetus, progresses through infancy and accelerates dramatic......Klinefelter syndrome (47,XXY) is characterized by small, firm testis, gynaecomastia, azoospermia and hypergonadotropic hypogonadism. Degeneration of the seminiferous tubules in 47,XXY males is a well-described phenomenon. It begins in the fetus, progresses through infancy and accelerates...

Sensitivity Analysis of Wavelet Neural Network Model for Short-Term Traffic Volume Prediction

Directory of Open Access Journals (Sweden)

Jinxing Shen

2013-01-01

Full Text Available In order to achieve a more accurate and robust traffic volume prediction model, the sensitivity of wavelet neural network model (WNNM is analyzed in this study. Based on real loop detector data which is provided by traffic police detachment of Maanshan, WNNM is discussed with different numbers of input neurons, different number of hidden neurons, and traffic volume for different time intervals. The test results show that the performance of WNNM depends heavily on network parameters and time interval of traffic volume. In addition, the WNNM with 4 input neurons and 6 hidden neurons is the optimal predictor with more accuracy, stability, and adaptability. At the same time, a much better prediction record will be achieved with the time interval of traffic volume are 15 minutes. In addition, the optimized WNNM is compared with the widely used back-propagation neural network (BPNN. The comparison results indicated that WNNM produce much lower values of MAE, MAPE, and VAPE than BPNN, which proves that WNNM performs better on short-term traffic volume prediction.

You can count on monsters the first 100 numbers and their characters

CERN Document Server

Schwartz, Richard Evan

2010-01-01

Using a unique teaching tool designed to motivate kids to learn, this volume visually explores the concepts of factoring and the role of prime and composite numbers. The playful and colorful monsters are designed to give children (and even older audiences) an intuitive understanding of the building blocks of numbers and the basics of multiplication. The introduction and appendices can also help adult readers answer questions about factoring from their young audience. The artwork is crisp and creative and the colors are bright and engaging, making this volume a welcome deviation from standard math texts. CRC Press Author and NPR's Math Guy Keith Devlin spoke with Scott Simon about how the book makes finding prime numbers fun. "This is one of the most amazing math books for kids I have ever seen...," Devlin says. "Great colors, it's wonderful, and yet because [Schwartz] knows the mathematics, he very skillfully and subtly embeds mathematical ideas into the drawings."

Natural history of seminiferous tubule degeneration in Klinefelter syndrome

DEFF Research Database (Denmark)

Aksglaede, Lise; Wikström, Anne M; Rajpert-De Meyts, Ewa

2006-01-01

Klinefelter syndrome (47,XXY) is characterized by small, firm testis, gynaecomastia, azoospermia and hypergonadotropic hypogonadism. Degeneration of the seminiferous tubules in 47,XXY males is a well-described phenomenon. It begins in the fetus, progresses through infancy and accelerates dramatic......Klinefelter syndrome (47,XXY) is characterized by small, firm testis, gynaecomastia, azoospermia and hypergonadotropic hypogonadism. Degeneration of the seminiferous tubules in 47,XXY males is a well-described phenomenon. It begins in the fetus, progresses through infancy and accelerates...... summarize current knowledge on the development of the classical endocrinological and histological features of 47,XXY males from fetus to adulthood and review the literature concerning the degeneration of the seminiferous tubules in this syndrome....

Effect of explant density and volume of cultivation medium on in-vitro multiplication of blueberry (Vaccinium corymbosum L. varieties "Brigitta" and "Legacy"

Directory of Open Access Journals (Sweden)

Mario Rodríguez Beraud

2015-03-01

Full Text Available The objective of the investigation was to evaluate the in-vitro multiplication of two varieties of blueberry (Vaccinium corymbosum L., “Brigitta” and “Legacy” in response to five explants densities (5, 10, 15, 20 and 25 and four flask volumes (10, 20, 30 and 40 mL for cultivation. For both varieties the cultivation medium WPM (Woody Plant Medium was used. The experiment was completely randomized with 20 treatments and 12 repetitions per treatment. After 45 days of cultivation we evaluated the height of shoots, number of shoots/explant, number of nodes/shoot and number of shoots/flask. Variety “Brigitta” had highest shoots at higher densities and flask volumes, while variety “Legacy” had the highest average shoot height with intermediate densities and high volumes. Regarding the number of shoots/explant, the volume of the medium had no influence on “Brigitta”, however, higher plant densities affected this parameter. With variety “Legacy” the maximum number of shoots was achieved with lower plant densities and intermediate culture volumes per flask. In relation to the number of nodes per explant "Brigitta had lower numbers as compared to “Legacy”, but with both varieties the number of nodes decresed with smaller volumes of medium in the flasks. For the number of shoots per flask, “Brigitta” responsed best at higher densities exceeding 40 shoots per flask. In contrast, “Legacy” produced maximum results at density of 25 explants in 30 mL of medium. It is concluded that for the optimum multiplication of both varieties the correct selection of both, the planting density and the volume of multiplication medium are important.

Calculations of doses for the personnel wrapped up in the radiological accident of the Specialties Hospital of the National Medical Center ''Siglo XXI''; Calculos de dosis para el personal involucrado en el accidente radiologico del Hospital de Especialidades del Centro Medico Nacional ''Siglo XXI''

Energy Technology Data Exchange (ETDEWEB)

Cortes C, A. [CNSNS, Dr. Barragan 779, Col Narvarte, Mexico D.F. (Mexico)]. e-mail: acortes@cnsns.gob.mx

2004-07-01

In this work the methodology used by the National Commission of Nuclear Safety and Safeguards for the determination of the internal dose due to the ingestion of coffee with I-131 for the personnel of the service of nuclear medicine of the Hospital of Specialties of the National Medical Center ''Siglo XXI'' of the Mexican Institute of the Social Insurance (IMSS), that was poured in the coffeepot of the service by a deliberate act before mentioned, is presented. Three different techniques were used to determine the initial activity incorporated starting from the measurements of retained activity in thyroid for 6 people of the service of nuclear medicine; the techniques employee provided consistent results. Using the results of the technique of the best estimator, it was applied the proposed methodology by the International Commission of Radioprotection in its publication 30 to determine the absorbed doses by the personnel involved in the accident, with which the Commission determines the administrative consequences to those that it should be held the personnel and the directive of the service of nuclear medicine of the one nosocome. (Author)

Klinefelter syndrome has increased brain responses to auditory stimuli and motor output, but not to visual stimuli or Stroop adaptation

DEFF Research Database (Denmark)

Wallentin, Mikkel; Skakkebæk, Anne; Bojesen, Anders

2016-01-01

Klinefelter syndrome (47, XXY) (KS) is a genetic syndrome characterized by the presence of an extra X chromosome and low level of testosterone, resulting in a number of neurocognitive abnormalities, yet little is known about brain function. This study investigated the fMRI-BOLD response from KS...

Treatability study Number PDC-1-O-T. Final report

International Nuclear Information System (INIS)

1998-01-01

Los Alamos National Laboratory provided treatability study samples from four waste streams, designated Stream number-sign 1, Stream number-sign 3, Stream number-sign 6, and Stream number-sign 7. Stream number-sign 1 consisted of one 55-gallon drum of personal protective equipment (PPE), rags, and neutralizing agent (bicarbonate) generated during the cleanup of a sodium dichromate solution spill. Stream number-sign 3 was one 55-gallon drum of paper, rags, lab utensils, tools, and tape from the decontamination of a glovebox. The sample of Stream number-sign 6 was packaged in three 30-gallon drums and a 100 ft 3 wooden box. It consisted of plastic sheeting, PPE, and paper generated from the cleanup of mock explosive (barium nitrate) from depleted uranium parts. Stream number-sign 7 was scrap metal (copper, stainless and carbon steel joined with silver solder) from the disassembly of gas manifolds. The objective of the treatability study is to determine: (1) whether the Perma-Fix stabilization/solidification process can treat the waste sample to meet Land Disposal Restrictions and the Waste Acceptance Criteria for LANL Technical Area 54, Area G, and (2) optimum loading and resulting weight and volume of finished waste form. The stabilized waste was mixed into grout that had been poured into a lined drum. After each original container of waste was processed, the liner was closed and a new liner was placed in the same drum on top of the previous closed liner. This allowed an overall reduction in waste volume but kept waste segregated to minimize the amount of rework in case analytical results indicated any batch did not meet treatment standards. Samples of treated waste from each waste stream were analyzed by Perma-Fix Analytical Services to get a preliminary approximation of TCLP metals. Splits of these samples were sent to American Environmental Network's mixed waste analytical lab in Cary, NC for confirmation analysis. Results were all below applicable limits

Image registration with auto-mapped control volumes

International Nuclear Information System (INIS)

Schreibmann, Eduard; Xing Lei

2006-01-01

Many image registration algorithms rely on the use of homologous control points on the two input image sets to be registered. In reality, the interactive identification of the control points on both images is tedious, difficult, and often a source of error. We propose a two-step algorithm to automatically identify homologous regions that are used as a priori information during the image registration procedure. First, a number of small control volumes having distinct anatomical features are identified on the model image in a somewhat arbitrary fashion. Instead of attempting to find their correspondences in the reference image through user interaction, in the proposed method, each of the control regions is mapped to the corresponding part of the reference image by using an automated image registration algorithm. A normalized cross-correlation (NCC) function or mutual information was used as the auto-mapping metric and a limited memory Broyden-Fletcher-Goldfarb-Shanno algorithm (L-BFGS) was employed to optimize the function to find the optimal mapping. For rigid registration, the transformation parameters of the system are obtained by averaging that derived from the individual control volumes. In our deformable calculation, the mapped control volumes are treated as the nodes or control points with known positions on the two images. If the number of control volumes is not enough to cover the whole image to be registered, additional nodes are placed on the model image and then located on the reference image in a manner similar to the conventional BSpline deformable calculation. For deformable registration, the established correspondence by the auto-mapped control volumes provides valuable guidance for the registration calculation and greatly reduces the dimensionality of the problem. The performance of the two-step registrations was applied to three rigid registration cases (two PET-CT registrations and a brain MRI-CT registration) and one deformable registration of

Probabilistic Characterization of Partial Volume Effects in Imaging of Rectangular Objects

Energy Technology Data Exchange (ETDEWEB)

Bulaevskaya, V. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2015-05-06

In imaging, a partial volume effect refers to the problem that arises when the system resolution is low relative to the size of the object being imaged [1, 2]. In this setting, it is likely that most voxels occupied by the object are only partially covered, and that the fraction covered in each voxel is low. This makes the problem of object detection and image segmentation very difficult because the algorithms designed for these purposes rely on pixel summary statistics. If the area covered by the object is very low in relatively many of the total number of the voxels the object occupies, these summary statistics may not reach the thresholds required to detect this object. It is thus important to understand the extent of partial volume effect for a given object size and resolution. This technical report focuses on rectangular objects and derives the probability distributions for three quantities for such objects: 1) the number of fully covered voxels, 2) the number of partially covered voxels, and 3) the fractions of the total volume covered in the partially covered voxels. The derivations are first shown for 2-D settings and are then extended to 3-D settings.

Effect of high-volume systematic local infiltration analgesia in Caesarean section

DEFF Research Database (Denmark)

Larsen, Klaus Richter; Kristensen, B B; Rasmussen, M A

2015-01-01

BACKGROUND: Pain after Caesarean section is often treated with opioids with a risk of side effects. Wound infiltration with local anaesthetics is effective and has few side effects, but volume vs. dose concentration has not been examined. METHODS: Ninety patients scheduled for elective Caesarean...... found concerning time spent in the PACU, to first mobilisation or in number of women with nausea/vomiting (P ≥ 0.05). No complications related to ropivacaine were observed. CONCLUSIONS: Systematic infiltration with a high concentration, low volume compared with low concentration, high volume showed...

A theoretical approach to the problem of dose-volume constraint estimation and their impact on the dose-volume histogram selection

International Nuclear Information System (INIS)

Schinkel, Colleen; Stavrev, Pavel; Stavreva, Nadia; Fallone, B. Gino

2006-01-01

This paper outlines a theoretical approach to the problem of estimating and choosing dose-volume constraints. Following this approach, a method of choosing dose-volume constraints based on biological criteria is proposed. This method is called ''reverse normal tissue complication probability (NTCP) mapping into dose-volume space'' and may be used as a general guidance to the problem of dose-volume constraint estimation. Dose-volume histograms (DVHs) are randomly simulated, and those resulting in clinically acceptable levels of complication, such as NTCP of 5±0.5%, are selected and averaged producing a mean DVH that is proven to result in the same level of NTCP. The points from the averaged DVH are proposed to serve as physical dose-volume constraints. The population-based critical volume and Lyman NTCP models with parameter sets taken from literature sources were used for the NTCP estimation. The impact of the prescribed value of the maximum dose to the organ, D max , on the averaged DVH and the dose-volume constraint points is investigated. Constraint points for 16 organs are calculated. The impact of the number of constraints to be fulfilled based on the likelihood that a DVH satisfying them will result in an acceptable NTCP is also investigated. It is theoretically proven that the radiation treatment optimization based on physical objective functions can sufficiently well restrict the dose to the organs at risk, resulting in sufficiently low NTCP values through the employment of several appropriate dose-volume constraints. At the same time, the pure physical approach to optimization is self-restrictive due to the preassignment of acceptable NTCP levels thus excluding possible better solutions to the problem

Title list of documents made publicly available. Volume 16, Number 5

Energy Technology Data Exchange (ETDEWEB)

1994-07-01

The Title List of Documents Made Publicly Available contains descriptions of the information received and generated by the US Nuclear Regulatory Commission (NRC). This information includes (1) docketed material associated with civilian nuclear power plants and other uses of radioactive materials and (2) nondocketed material received and generated by NRC pertinent to its role as a regulatory agency. As used here, docketed does not refer to Court dockets; it refers to the system by which NRC maintains its regulatory records. This series of documents is indexed by a Personal Author Index, a Corporate Source Index, and a Report Number Index.

Title list of documents made publicly available. Volume 16, Number 5

International Nuclear Information System (INIS)

1994-07-01

The Title List of Documents Made Publicly Available contains descriptions of the information received and generated by the US Nuclear Regulatory Commission (NRC). This information includes (1) docketed material associated with civilian nuclear power plants and other uses of radioactive materials and (2) nondocketed material received and generated by NRC pertinent to its role as a regulatory agency. As used here, docketed does not refer to Court dockets; it refers to the system by which NRC maintains its regulatory records. This series of documents is indexed by a Personal Author Index, a Corporate Source Index, and a Report Number Index

PENGARUH JUMLAH ANGGOTA, VOLUME USAHA DAN LIKUIDITAS KOPERASI TERHADAP PERMINTAAN JASA AUDIT

Directory of Open Access Journals (Sweden)

Nanik Sri Utaminingsih

2012-03-01

Full Text Available Kebutuhan akan laporan keuangan yang bisa dipercaya sangatlah penting untuk mengambil keputusan. Permasalahan dari penelitian ini adalah apakah jumlah anggota, volume bisnis dan likuiditas secara parsial dan simultan mempengaruhi permintaan jasa audit. Populasi dalam penelitian ini adalah 765 koperasi dan sampelnya berjumlah 89 koperasi. Data yang digunakan adalah laporan keuangan koperasi pada tahun fiscal 2008. Data analisis yang digunakan adalah analisis deskriptif, multikolnearitas and logistic regression. Kesimpulan dari penelitian ini adalah variabel jumlah anggota dan likuiditas mempengaruhi permintaan jasa audit secara parsial sedangkan volume bisnis tidak mempengaruhi permintaan jasa audit. Secara simultan 3 variabel mempengaruhi permintaan jasa audit. The need for reliable financial statements, and can be trusted is necessary in making a decision. The problem in this study is whether which the number of members, the business volume and liquidity partially and simultaneously affect the demand for audit services. The population in this study were 765 cooperatives and the research sample is 89 cooperatives. The dependent variables in this study are demand audit services. While the independent variables are the number of members, the business vo-lume and liquidity of cooperatives. The data used in the form of cooperative financial reports, fiscal year 2008  with using descriptive analysis, multicolonearitas and logistic regression. The conclusion of this research is variable number of members, and liquidity, the partial affect on demand for audit services, while business volume is partially not influence the audit services. Simultaneously, the three indepen-dent variables influenced the demand for audit services.

In vivo estimation of normal amygdala volume from structural MRI scans with anatomical-based segmentation.

Science.gov (United States)

Siozopoulos, Achilleas; Thomaidis, Vasilios; Prassopoulos, Panos; Fiska, Aliki

2018-02-01

Literature includes a number of studies using structural MRI (sMRI) to determine the volume of the amygdala, which is modified in various pathologic conditions. The reported values vary widely mainly because of different anatomical approaches to the complex. This study aims at estimating of the normal amygdala volume from sMRI scans using a recent anatomical definition described in a study based on post-mortem material. The amygdala volume has been calculated in 106 healthy subjects, using sMRI and anatomical-based segmentation. The resulting volumes have been analyzed for differences related to hemisphere, sex, and age. The mean amygdalar volume was estimated at 1.42 cm 3 . The mean right amygdala volume has been found larger than the left, but the difference for the raw values was within the limits of the method error. No intersexual differences or age-related alterations have been observed. The study provides a method for determining the boundaries of the amygdala in sMRI scans based on recent anatomical considerations and an estimation of the mean normal amygdala volume from a quite large number of scans for future use in comparative studies.

Cryptography and computational number theory

CERN Document Server

Shparlinski, Igor; Wang, Huaxiong; Xing, Chaoping; Workshop on Cryptography and Computational Number Theory, CCNT'99

2001-01-01

This volume contains the refereed proceedings of the Workshop on Cryptography and Computational Number Theory, CCNT'99, which has been held in Singapore during the week of November 22-26, 1999. The workshop was organized by the Centre for Systems Security of the Na­ tional University of Singapore. We gratefully acknowledge the financial support from the Singapore National Science and Technology Board under the grant num­ ber RP960668/M. The idea for this workshop grew out of the recognition of the recent, rapid development in various areas of cryptography and computational number the­ ory. The event followed the concept of the research programs at such well-known research institutions as the Newton Institute (UK), Oberwolfach and Dagstuhl (Germany), and Luminy (France). Accordingly, there were only invited lectures at the workshop with plenty of time for informal discussions. It was hoped and successfully achieved that the meeting would encourage and stimulate further research in information and computer s...

Does delivery volume of family physicians predict maternal and newborn outcome?

International Nuclear Information System (INIS)

Klein, M.C.; Spence, A.; Kaczorowski, J.; Kelly, A.; Grzybowski, S.

2002-01-01

The number of births attended by individual family physicians who practice intrapartum care varies. We wanted to determine if the practice-volume relations that have been shown in other fields of medical practice also exist in maternity care practice by family doctors. For the period April 1997 to August 1998, we analyzed all singleton births at a major maternity teaching hospital for which the family physician was the responsible physician. Physicians were grouped into 3 categories on the basis of the number of births they attended each year: fewer than 12, 12 to 24, and 25 or more. Physicians with a low volume of deliveries (72 physicians, 549 births), those with a medium volume of deliveries (34 physicians, 871 births) and those with a high volume of deliveries (46 physicians, 3024 births) were compared in terms of maternal and newborn outcomes. The main outcome measures were maternal morbidity, 5-minute Apgar score and admission of the baby to the neonatal intensive care unit or special care unit. Secondary outcomes were obstetric procedures and consultation patterns. There was no difference among the 3 volume cohorts in terms of rates of maternal complications of delivery, 5-minute Apgar scores of less than 7 or admissions to the neonatal intensive care unit or the special care unit, either before or after adjustment for parity, pregnancy-induced hypertension, diabetes, ethnicity, lone parent status, maternal age, gestational age, newborn birth weight and newborn head circumference at birth. High-and medium-volume family physicians consulted with obstetricians less often than low-volume family physicians (adjusted odds ratio [OR] 0.586 [95% confidence interval, CI, 0.479-0.718] and 0.739 [95% Cl 0.583-0.935] respectively). High-and medium-volume family physicians transferred the delivery to an obstetrician less often than low-volume family physicians (adjusted OR 0.668 [95% CI 0.542-0.823] and 0.776 [95% Cl 0.607-0.992] respectively). Inductions were performed

Does delivery volume of family physicians predict maternal and newborn outcome?

Energy Technology Data Exchange (ETDEWEB)

Klein, M.C. [Children' s and Women' s Health Centre, Dept. of Family Practice, Vancouver, British Columbia (Canada); Univ. of British Columbia, Dept. of Family Practice, Vancouver, British Columbia (Canada); Spence, A. [Children' s and Women' s Health Centre, Dept. of Family Practice, Vancouver, British Columbia (Canada); Kaczorowski, J. [McMaster Univ., Depts. of Family Medicine and of Clinical Epidemiology and Biostatistics, Hamilton, Ontario (Canada); Kelly, A. [Children' s and Women' s Health Centre, Dept. of Family Practice, Vancouver, British Columbia (Canada); Univ. of British Columbia, Dept. of Health Care and Epidemiology, Vancouver, British Columbia (Canada); Grzybowski, S. [Univ. of British Columbia, Dept. of Family Practice, Vancouver, British Columbia (Canada)

2002-05-01

The number of births attended by individual family physicians who practice intrapartum care varies. We wanted to determine if the practice-volume relations that have been shown in other fields of medical practice also exist in maternity care practice by family doctors. For the period April 1997 to August 1998, we analyzed all singleton births at a major maternity teaching hospital for which the family physician was the responsible physician. Physicians were grouped into 3 categories on the basis of the number of births they attended each year: fewer than 12, 12 to 24, and 25 or more. Physicians with a low volume of deliveries (72 physicians, 549 births), those with a medium volume of deliveries (34 physicians, 871 births) and those with a high volume of deliveries (46 physicians, 3024 births) were compared in terms of maternal and newborn outcomes. The main outcome measures were maternal morbidity, 5-minute Apgar score and admission of the baby to the neonatal intensive care unit or special care unit. Secondary outcomes were obstetric procedures and consultation patterns. There was no difference among the 3 volume cohorts in terms of rates of maternal complications of delivery, 5-minute Apgar scores of less than 7 or admissions to the neonatal intensive care unit or the special care unit, either before or after adjustment for parity, pregnancy-induced hypertension, diabetes, ethnicity, lone parent status, maternal age, gestational age, newborn birth weight and newborn head circumference at birth. High-and medium-volume family physicians consulted with obstetricians less often than low-volume family physicians (adjusted odds ratio [OR] 0.586 [95% confidence interval, CI, 0.479-0.718] and 0.739 [95% Cl 0.583-0.935] respectively). High-and medium-volume family physicians transferred the delivery to an obstetrician less often than low-volume family physicians (adjusted OR 0.668 [95% CI 0.542-0.823] and 0.776 [95% Cl 0.607-0.992] respectively). Inductions were performed

From the Editor Vol: 6 number 2

OpenAIRE

Ugur Demiray

2005-01-01

From the Editor Dear TOJDES Readers Time flies. Another quarter has begun. It is a great pleasure to welcome you to the 18th issue, the Volume: 6, Number: 2 of The Turkish Online Journal of Distance Education (TOJDE), of looking forward. TOJDE has been driving and shaping by our editorial board, reviewers, authors and even unbelievable readers. In the April 2005 issue, TOJDE publishes peer-reviewed distance education articles under four umbrellas: applications, feature topics, researches, ...

Outcomes of PCI in Relation to Procedural Characteristics and Operator Volumes in the United States.

Science.gov (United States)

Fanaroff, Alexander C; Zakroysky, Pearl; Dai, David; Wojdyla, Daniel; Sherwood, Matthew W; Roe, Matthew T; Wang, Tracy Y; Peterson, Eric D; Gurm, Hitinder S; Cohen, Mauricio G; Messenger, John C; Rao, Sunil V

2017-06-20

Professional guidelines have reduced the recommended minimum number to an average of 50 percutaneous coronary intervention (PCI) procedures performed annually by each operator. Operator volume patterns and associated outcomes since this change are unknown. The authors describe herein PCI operator procedure volumes; characteristics of low-, intermediate-, and high-volume operators; and the relationship between operator volume and clinical outcomes in a large, contemporary, nationwide sample. Using data from the National Cardiovascular Data Registry collected between July 1, 2009, and March 31, 2015, we examined operator annual PCI volume. We divided operators into low- (100 PCIs per year) volume groups, and determined the adjusted association between annual PCI volume and in-hospital outcomes, including mortality. The median annual number of procedures performed per operator was 59; 44% of operators performed PCI procedures per year. Low-volume operators more frequently performed emergency and primary PCI procedures and practiced at hospitals with lower annual PCI volumes. Unadjusted in-hospital mortality was 1.86% for low-volume operators, 1.73% for intermediate-volume operators, and 1.48% for high-volume operators. The adjusted risk of in-hospital mortality was higher for PCI procedures performed by low- and intermediate-volume operators compared with those performed by high-volume operators (adjusted odds ratio: 1.16 for low versus high; adjusted odds ratio: 1.05 for intermediate vs. high volume) as was the risk for new dialysis post PCI. No volume relationship was observed for post-PCI bleeding. Many PCI operators in the United States are performing fewer than the recommended number of PCI procedures annually. Although absolute risk differences are small and may be partially explained by unmeasured differences in case mix between operators, there remains an inverse relationship between PCI operator volume and in-hospital mortality that persisted in risk

Residual number processing in dyscalculia.

Science.gov (United States)

Cappelletti, Marinella; Price, Cathy J

2014-01-01

Developmental dyscalculia - a congenital learning disability in understanding numerical concepts - is typically associated with parietal lobe abnormality. However, people with dyscalculia often retain some residual numerical abilities, reported in studies that otherwise focused on abnormalities in the dyscalculic brain. Here we took a different perspective by focusing on brain regions that support residual number processing in dyscalculia. All participants accurately performed semantic and categorical colour-decision tasks with numerical and non-numerical stimuli, with adults with dyscalculia performing slower than controls in the number semantic tasks only. Structural imaging showed less grey-matter volume in the right parietal cortex in people with dyscalculia relative to controls. Functional MRI showed that accurate number semantic judgements were maintained by parietal and inferior frontal activations that were common to adults with dyscalculia and controls, with higher activation for participants with dyscalculia than controls in the right superior frontal cortex and the left inferior frontal sulcus. Enhanced activation in these frontal areas was driven by people with dyscalculia who made faster rather than slower numerical decisions; however, activation could not be accounted for by response times per se, because it was greater for fast relative to slow dyscalculics but not greater for fast controls relative to slow dyscalculics. In conclusion, our results reveal two frontal brain regions that support efficient number processing in dyscalculia.

Residual number processing in dyscalculia

Directory of Open Access Journals (Sweden)

Marinella Cappelletti

2014-01-01

Full Text Available Developmental dyscalculia – a congenital learning disability in understanding numerical concepts – is typically associated with parietal lobe abnormality. However, people with dyscalculia often retain some residual numerical abilities, reported in studies that otherwise focused on abnormalities in the dyscalculic brain. Here we took a different perspective by focusing on brain regions that support residual number processing in dyscalculia. All participants accurately performed semantic and categorical colour-decision tasks with numerical and non-numerical stimuli, with adults with dyscalculia performing slower than controls in the number semantic tasks only. Structural imaging showed less grey-matter volume in the right parietal cortex in people with dyscalculia relative to controls. Functional MRI showed that accurate number semantic judgements were maintained by parietal and inferior frontal activations that were common to adults with dyscalculia and controls, with higher activation for participants with dyscalculia than controls in the right superior frontal cortex and the left inferior frontal sulcus. Enhanced activation in these frontal areas was driven by people with dyscalculia who made faster rather than slower numerical decisions; however, activation could not be accounted for by response times per se, because it was greater for fast relative to slow dyscalculics but not greater for fast controls relative to slow dyscalculics. In conclusion, our results reveal two frontal brain regions that support efficient number processing in dyscalculia.

Residual number processing in dyscalculia☆

Science.gov (United States)

Cappelletti, Marinella; Price, Cathy J.

2013-01-01

Developmental dyscalculia – a congenital learning disability in understanding numerical concepts – is typically associated with parietal lobe abnormality. However, people with dyscalculia often retain some residual numerical abilities, reported in studies that otherwise focused on abnormalities in the dyscalculic brain. Here we took a different perspective by focusing on brain regions that support residual number processing in dyscalculia. All participants accurately performed semantic and categorical colour-decision tasks with numerical and non-numerical stimuli, with adults with dyscalculia performing slower than controls in the number semantic tasks only. Structural imaging showed less grey-matter volume in the right parietal cortex in people with dyscalculia relative to controls. Functional MRI showed that accurate number semantic judgements were maintained by parietal and inferior frontal activations that were common to adults with dyscalculia and controls, with higher activation for participants with dyscalculia than controls in the right superior frontal cortex and the left inferior frontal sulcus. Enhanced activation in these frontal areas was driven by people with dyscalculia who made faster rather than slower numerical decisions; however, activation could not be accounted for by response times per se, because it was greater for fast relative to slow dyscalculics but not greater for fast controls relative to slow dyscalculics. In conclusion, our results reveal two frontal brain regions that support efficient number processing in dyscalculia. PMID:24266008

Computational analysis of particle reinforced viscoelastic polymer nanocomposites - statistical study of representative volume element

Science.gov (United States)

Hu, Anqi; Li, Xiaolin; Ajdari, Amin; Jiang, Bing; Burkhart, Craig; Chen, Wei; Brinson, L. Catherine

2018-05-01

The concept of representative volume element (RVE) is widely used to determine the effective material properties of random heterogeneous materials. In the present work, the RVE is investigated for the viscoelastic response of particle-reinforced polymer nanocomposites in the frequency domain. The smallest RVE size and the minimum number of realizations at a given volume size for both structural and mechanical properties are determined for a given precision using the concept of margin of error. It is concluded that using the mean of many realizations of a small RVE instead of a single large RVE can retain the desired precision of a result with much lower computational cost (up to three orders of magnitude reduced computation time) for the property of interest. Both the smallest RVE size and the minimum number of realizations for a microstructure with higher volume fraction (VF) are larger compared to those of one with lower VF at the same desired precision. Similarly, a clustered structure is shown to require a larger minimum RVE size as well as a larger number of realizations at a given volume size compared to the well-dispersed microstructures.

A non-conformal finite element/finite volume scheme for the non-structured grid-based approximation of low Mach number flows; Un schema elements finis non-conformes/volumes finis pour l'approximation en maillages non-structures des ecoulements a faible nombre de Mach

Energy Technology Data Exchange (ETDEWEB)

Ansanay-Alex, G.

2009-06-17

The development of simulation codes aimed at a precise simulation of fires requires a precise approach of flame front phenomena by using very fine grids. The need to take different spatial scale into consideration leads to a local grid refinement and to a discretization with homogeneous grid for computing time and memory purposes. The author reports the approximation of the non-linear convection term, the scalar advection-diffusion in finite volumes, numerical simulations of a flow in a bent tube, of a three-dimensional laminar flame and of a low Mach number an-isotherm flow. Non conformal finite elements are also presented (Rannacher-Turek and Crouzeix-Raviart elements)

O PERFIL METODOLÓGICO DA PRODUÇÃO CIENTÍFICA EM ORÇAMENTO PÚBLICO: UMA ANÁLISE DO CENÁRIO BRASILEIRO NA PRIMEIRA DÉCADA DO SÉCULO XXI

Directory of Open Access Journals (Sweden)

Maurício Vasconcellos Leão Lyrio

2013-04-01

Full Text Available O presente estudo se insere no campo da administração pública e objetiva discutir o perfil metodológico dos estudos sobre orçamento público realizados no Brasil na primeira década do séc. XXI. Para tanto, no que se refere à metodologia, foi realizado um levantamento na base de dados SCIELO Brasil, utilizando-se de uma abordagem quantitativa, se configurando, do ponto de vista de abordagem do problema, em um estudo de caráter descritivo. Dentre os resultados encontrados, ficou evidenciado que os estudos sobre o tema se dão, principalmente, no setor público de forma geral, não se atendo a setores específicos de atividade. Foi evidenciada nos artigos encontrados no levantamento, uma abordagem quantitativa, tendo a econometria como principal método de pesquisa.

Occupational dose reduction at nuclear power plants: Annotated bibliography of selected readings in radiation protection and ALARA. Volume 7

Energy Technology Data Exchange (ETDEWEB)

Kaurin, D.G.; Khan, T.A.; Sullivan, S.G.; Baum, J.W. [Brookhaven National Lab., Upton, NY (United States)

1993-07-01

The ALARA Center at Brookhaven National Laboratory publishes a series of bibliographies of selected readings in radiation protection and ALARA in the continuing effort to collect and disseminate information on radiation dose reduction at nuclear power plants. This is volume 7 of the series. The abstracts in this bibliography were selected from proceedings of technical meetings and conferences, journals, research reports, and searches of the Energy Science and Technology database of the US Department of Energy. The subject material of these abstracts relates to radiation protection and dose reduction, and ranges from use of robotics to operational health physics, to water chemistry. Material on the design, planning, and management of nuclear power stations is included, as well as information on decommissioning and safe storage efforts. Volume 7 contains 293 abstract, an author index, and a subject index. The author index is specific for this volume. The subject index is cumulative and lists all abstract numbers from volumes 1 to 7. The numbers in boldface indicate the abstracts in this volume; the numbers not in boldface represent abstracts in previous volumes.

Occupational dose reduction at nuclear power plants: Annotated bibliography of selected readings in radiation protection and ALARA. Volume 8

Energy Technology Data Exchange (ETDEWEB)

Sullivan, S.G.; Khan, T.A.; Xie, J.W. [Brookhaven National Lab., Upton, NY (United States)

1995-05-01

The ALARA Center at Brookhaven National Laboratory publishes a series of bibliographies of selected readings in radiation protection and ALARA in a continuing effort to collect and disseminate information on radiation dose reduction at nuclear power plants. This volume 8 of the series. The abstracts in this bibliography were selected form proceedings of technical meetings and conference journals, research reports, and searches of the Energy Science and Technology database of the US Department of Energy. The subject material of these abstracts relates to the many aspects of radiation protection and dose reduction, and ranges form use of robotics, to operational health physics, to water chemistry. Material on the design, planning, and management of nuclear power stations is included, as well as information on decommissioning and safe storage efforts. Volume 8 contains 232 abstracts, an author index, and a subject index. The author index is specific for this volume. The subject index is cumulative and lists all abstract numbers from volumes 1 to 8. The numbers in boldface indicate the abstracts in this volume; the numbers not in boldface represent abstracts in previous volumes.

Occupational dose reduction at nuclear power plants: Annotated bibliography of selected readings in radiation protection and ALARA. Volume 8

International Nuclear Information System (INIS)

Sullivan, S.G.; Khan, T.A.; Xie, J.W.

1995-05-01

The ALARA Center at Brookhaven National Laboratory publishes a series of bibliographies of selected readings in radiation protection and ALARA in a continuing effort to collect and disseminate information on radiation dose reduction at nuclear power plants. This volume 8 of the series. The abstracts in this bibliography were selected form proceedings of technical meetings and conference journals, research reports, and searches of the Energy Science and Technology database of the US Department of Energy. The subject material of these abstracts relates to the many aspects of radiation protection and dose reduction, and ranges form use of robotics, to operational health physics, to water chemistry. Material on the design, planning, and management of nuclear power stations is included, as well as information on decommissioning and safe storage efforts. Volume 8 contains 232 abstracts, an author index, and a subject index. The author index is specific for this volume. The subject index is cumulative and lists all abstract numbers from volumes 1 to 8. The numbers in boldface indicate the abstracts in this volume; the numbers not in boldface represent abstracts in previous volumes

Evaluation of volume change in rectum and bladder during application of image-guided radiotherapy for prostate carcinoma

Energy Technology Data Exchange (ETDEWEB)

Luna, J. A., E-mail: yosimoon13@hotmail.com [Departamento de Física, Universidad Nacional de Costa Rica, Heredia (Costa Rica); Rojas, J. I., E-mail: isaac.rojas@siglo21.cr [Centro Médico Radioterapia Siglo XX1, La Uruca (Costa Rica); PROXTRONICS CR, Ltda, Heredia (Costa Rica)

2016-07-07

All prostate cancer patients from Centro Médico Radioterapia Siglo XXI receive Volumetric Modulated Arc Therapy (VMAT). This therapy uses image-guided radiotherapy (IGRT) with the Cone Beam Computed Tomography (CBCT). This study compares the planned dose in the reference CT image against the delivered dose recalculate in the CBCT image. The purpose of this study is to evaluate the anatomic changes and related dosimetric effect based on weekly CBCT directly for patients with prostate cancer undergoing volumetric modulated arc therapy (VMAT) treatment. The collected data were analyzed using one-way ANOVA.

Countermeasure: Army Ground Risk-Management Publication. Rollover] Rollover] What can you do? Volume 18, Number 12

National Research Council Canada - National Science Library

1997-01-01

.... The number of accidents and the number of fatalities are too high. what can we do about it? Can we make improvements in our efforts to reduce the number of rollover/ turnover accidents, and also improve our chances of surviving such an accident...

Defense Acquisition Research Journal. Volume 18, Number 4, Issue 60, October 2011

Science.gov (United States)

2011-10-01

number form of citation ) as outlined in the Publication Manual of the American Psychological Association (6th Edition). For all other style questions...please refer to the Chicago Manual of Style (15th Edition). Contributors are encouraged to seek the advice of a reference librarian in completing...From Workforce to Warfighter Diagnosing Key Drivers of Job Impact and Business Results Attributable to Training at the Defense Acquisition

The Gift Code User Manual. Volume I. Introduction and Input Requirements

Science.gov (United States)

1975-07-01

REPORT & PERIOD COVERED ‘TII~ GIFT CODE USER MANUAL; VOLUME 1. INTRODUCTION AND INPUT REQUIREMENTS FINAL 6. PERFORMING ORG. REPORT NUMBER ?. AuTHOR(#) 8...reverua side if neceaeary and identify by block number] (k St) The GIFT code is a FORTRANcomputerprogram. The basic input to the GIFT ode is data called

Retos de la bioética en la medicina del siglo XXI Challenges of bioethics in twenty-first century medicine

Directory of Open Access Journals (Sweden)

Jorge Alberto Álvarez-Díaz

2011-12-01

Full Text Available Para plantear posibles retos de la bioética en la medicina del siglo XXI es necesario considerar que existieron algunos retos en el pasado (en el origen de esa nueva disciplina llamada bioética; que los retos se han ido modificando con el avance científico, biomédico y humanístico; considerando que los retos que pueden plantearse para el futuro serán, de diferentes maneras, resultado de este devenir histórico. Se plantean como grandes retos: los problemas no resueltos de justicia, equidad y pobreza; los retos que plantea la introducción de nuevas tecnologías con el paradigma de la nanomedicina y los retos que plantea el avance de las neurociencias con el paradigma de la neuroética.In order to propose possible challenges of bioethics in the twenty-first century medicine, it is necessary to consider that there were some past challenges (at the origin of this new discipline called bioethics, that the challenges have been modified with scientific, biomedical and humanistic breakthroughs, considering at the same time that challenges that may arise in the future will be, in different ways, a result of this historical evolution. The major challenges would be in the future: the unsolved problems of justice, equity and poverty; the challenges posed by the introduction of new technologies with the nanomedicine paradigm; and finally, the challenges driven by breakthroughs in neurosciences with the neuroethics paradigm.

CUNY Graduate Center Workshops on Combinatorial and Additive Number Theory

CERN Document Server

2017-01-01

Based on talks from the 2015 and 2016 Combinatorial and Additive Number Theory (CANT) workshops at the City University of New York, these proceedings offer 19 peer-reviewed and edited papers on current topics in number theory. Held every year since 2003, the workshop series surveys state-of-the-art open problems in combinatorial and additive number theory and related parts of mathematics. Sumsets, partitions, convex polytopes and discrete geometry, Ramsey theory, primality testing, and cryptography are among the topics featured in this volume. Each contribution is dedicated to a specific topic that reflects the latest results by experts in the field. Researchers and graduate students interested in the current progress in number theory will find this selection of articles relevant and compelling. .

Исследование о русских Литвы: XX–XXI вв.

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Елена [Jelena] Коницкая [Konickaja

2015-12-01

Studia o Rosjanach Litwy: XX–XXI w. Recenzja omawia wydaną w 2013 r. na Uniwersytecie Wileńskim monografię, ważną z punktu widzenia badań nad historią, historią kultury i tożsamością rosyjskiej grupy etnicznej na Litwie z perspektywy ostatnich stu lat. Napisane w języku rosyjskim oraz litewskim artykuły historyków G. Potaszenki, A. Marcinkevičiusa, literaturoznawcy P. Ławrinca, socjolożki M. Freyute-Rakauskene zawierają szczegółową analizę skomplikowanych procesów kształtowania się współczesnej, niejednorodnej pod względem pamięci historycznej i światopoglądu, ideologii rosyjskiej grupy etnicznej na Litwie. Będąc trzecią pod względem liczebności grupą etniczną Litwy (prawie 6% odgrywa ona ważną rolę we współczesnym społeczeństwie litewskim.

Sasaki-Einstein Manifolds and Volume Minimisation

CERN Document Server

Martelli, D; Yau, S T; Martelli, Dario; Sparks, James; Yau, Shing-Tung

2006-01-01

We study a variational problem whose critical point determines the Reeb vector field for a Sasaki-Einstein manifold. This extends our previous work on Sasakian geometry by lifting the condition that the manifolds are toric. We show that the Einstein-Hilbert action, restricted to a space of Sasakian metrics on a link L in a Calabi-Yau cone M, is the volume functional, which in fact is a function on the space of Reeb vector fields. We relate this function both to the Duistermaat-Heckman formula and also to a limit of a certain equivariant index on M that counts holomorphic functions. Both formulae may be evaluated by localisation. This leads to a general formula for the volume function in terms of topological fixed point data. As a result we prove that the volume of any Sasaki-Einstein manifold, relative to that of the round sphere, is always an algebraic number. In complex dimension n=3 these results provide, via AdS/CFT, the geometric counterpart of a-maximisation in four dimensional superconformal field theo...

When high-volume PCI operators in high-volume hospitals move to lower volume hospitals-Do they still maintain high volume and quality of outcomes?

Science.gov (United States)

Lu, Tsung-Hsueh; Li, Sheng-Tun; Liang, Fu-Wen; Lee, Jo-Chi; Yin, Wei-Hsian

2017-10-31

The aim of this quasi-experimental study was to examine whether high-volume percutaneous coronary intervention (PCI) operators still maintain high volume and quality of outcomes when they moved to lower volume hospitals. Systematic reviews have indicated that high-volume PCI operators and hospitals have higher quality outcomes. However, little is known on whether high PCI volume and high quality outcomes are mainly due to operator characteristics (i.e., skill and experience) and is portable across organizations or whether it is due to hospital characteristics (i.e., equipment, team, and management system) and is less portable. We used Taiwan National Health Insurance claims data 2000-2012 to identify 98 high-volume PCI operators, 10 of whom moved from one hospital to another during the study period. We compared the PCI volume, risk-adjusted mortality ratio, and major adverse cardiovascular event (MACE) ratio before and after moving. Of the 10 high-volume operators who moved, 6 moved from high- to moderate- or low-volume hospitals, with median annual PCI volumes (interquartile range) of 130 (117-165) in prior hospitals and 54 (46-84) in subsequent hospitals (the hospital the operator moved to), and the remaining 4 moved from high to high-volume hospitals, with median annual PCI volumes (interquartile range) of 151 (133-162) in prior hospitals and 193 (178-239) in subsequent hospitals. No significant differences were observed in the risk-adjusted mortality ratios and MACE ratios between high-volume operators and matched controls before and after moving. High-volume operators cannot maintain high volume when they moved from high to moderate or low-volume hospitals; however, the quality of care is maintained. High PCI volume and high-quality outcomes are less portable and more hospital bound. © 2017 Wiley Periodicals, Inc.

A Monte Carlo study of the impact of the choice of rectum volume definition on estimates of equivalent uniform doses and the volume parameter

International Nuclear Information System (INIS)

Kvinnsland, Yngve; Muren, Ludvig Paul; Dahl, Olav

2004-01-01

Calculations of normal tissue complication probability (NTCP) values for the rectum are difficult because it is a hollow, non-rigid, organ. Finding the true cumulative dose distribution for a number of treatment fractions requires a CT scan before each treatment fraction. This is labour intensive, and several surrogate distributions have therefore been suggested, such as dose wall histograms, dose surface histograms and histograms for the solid rectum, with and without margins. In this study, a Monte Carlo method is used to investigate the relationships between the cumulative dose distributions based on all treatment fractions and the above-mentioned histograms that are based on one CT scan only, in terms of equivalent uniform dose. Furthermore, the effect of a specific choice of histogram on estimates of the volume parameter of the probit NTCP model was investigated. It was found that the solid rectum and the rectum wall histograms (without margins) gave equivalent uniform doses with an expected value close to the values calculated from the cumulative dose distributions in the rectum wall. With the number of patients available in this study the standard deviations of the estimates of the volume parameter were large, and it was not possible to decide which volume gave the best estimates of the volume parameter, but there were distinct differences in the mean values of the values obtained

Defense Acquisition Research Journal. Volume 18, Number 2, Issue 58, April 2011

Science.gov (United States)

2011-04-01

submit your manuscript with references in APA format (author- date-page number form of citation) as outlined in the Publication Manual of the American...Psychological Association ( 6th Edition ). For all other style questions, please refer to the Chicago Manual of Style (15th Edition ). Contributors are...Report Documentation Page Form ApprovedOMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average 1 hour

Defense Acquisition Research Journal. Volume 19, Number 3, Issue 63, July 2012

Science.gov (United States)

2012-07-01

submit your manuscript with references in APA format (author-date-page number form of citation) as outlined in the Publication Manual of the American...Psycho- logical Association ( 6th Edition ). For all other style questions, please refer to the Chicago Manual of Style (15th Edition ). Contributors are... Publications Assistants/ Graphic Designers Janet Amedome Lisa Drobek Multimedia Assistant Noelia Perez Editing , Design, and Layout Schatz Publishing Group The

Noether charge, black hole volume, and complexity

Energy Technology Data Exchange (ETDEWEB)

Couch, Josiah; Fischler, Willy; Nguyen, Phuc H. [Theory Group, Department of Physics and Texas Cosmology Center,University of Texas at Austin, 2515 Speedway, C1600, Austin, TX 78712-1192 (United States)

2017-03-23

In this paper, we study the physical significance of the thermodynamic volumes of AdS black holes using the Noether charge formalism of Iyer and Wald. After applying this formalism to study the extended thermodynamics of a few examples, we discuss how the extended thermodynamics interacts with the recent complexity = action proposal of Brown et al. (CA-duality). We, in particular, discover that their proposal for the late time rate of change of complexity has a nice decomposition in terms of thermodynamic quantities reminiscent of the Smarr relation. This decomposition strongly suggests a geometric, and via CA-duality holographic, interpretation for the thermodynamic volume of an AdS black hole. We go on to discuss the role of thermodynamics in complexity = action for a number of black hole solutions, and then point out the possibility of an alternate proposal, which we dub “complexity = volume 2.0'. In this alternate proposal the complexity would be thought of as the spacetime volume of the Wheeler-DeWitt patch. Finally, we provide evidence that, in certain cases, our proposal for complexity is consistent with the Lloyd bound whereas CA-duality is not.

Desafios para o futuro da Psicologia: contribuições da Psicologia na construção do conhecimento no século XXI

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Vicente Cassepp-Borges

2013-01-01

Full Text Available O objetivo deste ensaio foi refletir sobre o futuro da Psicologia como área do conhecimento e ciência aplicada. São abordadas as maneiras como a Psicologia pode provocar as mudanças da sociedade que devem ocorrer no século XXI e adaptar-se a elas. São apresentadas as visões skinnerianas do futuro da Psicologia, afirmando que o avanço da área pode trazer a solução para a maioria dos problemas da humanidade. O efeito Flynn é apontado como força produtora de mudanças psicológicas e sociais, pois a humanidade será composta por pessoas mais inteligentes, que devem desenvolver a Psicologia e dela necessitar. Psicólogos mais inteligentes construirão uma área cada vez mais sustentada em evidências empíricas. É assinalada a necessidade de a Psicologia se especializar, rever seus currículos em nível de graduação e unir-se em torno de um paradigma integrador. Conclui-se afirmando a necessidade de valorizar as opiniões de jovens psicólogos, além de criar melhores formas de interação entre pessoas e máquinas.

Thermoeconomic analysis of storage systems for solar heating and cooling systems: A comparison between variable-volume and fixed-volume tanks

International Nuclear Information System (INIS)

Buonomano, Annamaria; Calise, Francesco; Ferruzzi, Gabriele

2013-01-01

The paper investigates different control strategies for the thermal storage management in SHC (Solar Heating and Cooling) systems. The SHC system under investigation is based on a field of evacuated solar collectors coupled with a single-stage LiBr–H 2 O absorption chiller; auxiliary thermal energy is supplied by a gas-fired boiler. The SHC is also equipped with a novel thermal storage system, consisting in a variable volume storage tank. It includes three separate tanks and a number of mixers and diverters managed by novel control strategies, based on combinations of series/parallel charging and discharging approaches. The aim of this component is to vary the thermal storage capacity as a function of the combinations of solar radiation availability and user thermal/cooling energy demands. The system allows one to increase the number of active tanks when the time shift between solar energy and user demand is high. Conversely, when this time shift is low, the number of active tanks is automatically reduced. In addition, when the solar energy in excess cannot be stored in such tanks, a heat exchanger is also used in the solar loop for producing DHW (Domestic Hot Water). The analysis is carried out by means of a zero-dimensional transient simulation model, developed by using the TRNSYS software. In order to assess the operating and capital costs of the systems under analysis, an economic model is also proposed. In addition, in order to determine the set of the synthesis/design variables which maximize the system profitability, a parametric analysis was implemented. The novel variable-volume storage system, in both the proposed configurations, was also compared with a constant-volume storage system from the energy and economic points of view. The results showed that the presented storage system allows one to save up to 20% of the natural gas used by the auxiliary boiler only for very high solar fractions. In all the other cases, marginal savings are achieved by the

La enseñanza universitaria para personas mayores: evolución conceptual, innovación educativa y adaptación a las demandas sociales del siglo XXI. Investigación y buenas prácticas de trabajo académico con mayores en España

OpenAIRE

Bru Ronda, Concepción

2010-01-01

En el presente artículo se abordan las claves de la formación para mayores en España en el umbral del siglo XXI, centradas en el estudio de los Programas Universitarios para Mayores (PUPM), y en los resultados de las investigaciones y acciones llevadas en el ámbito de la Asociación Estatal de Programas Universitarios para Mayores de España, que desde el 2004 desarrolla acciones coordinadas a nivel nacional e internacional, y que actualmente integra a 39 universidades españolas, siendo la Univ...