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1

Crispen's Five Antivirus Rules.  

ERIC Educational Resources Information Center

Explains five rules to protect computers from viruses. Highlights include commercial antivirus software programs and the need to upgrade them periodically (every year to 18 months); updating virus definitions at least weekly; scanning attached files from email with antivirus software before opening them; Microsoft Word macro protection; and the…

Crispen, Patrick Douglas

2000-01-01

2

Crispen's Five Antivirus Rules.  

ERIC Educational Resources Information Center

Provides rules for protecting computers from viruses, Trojan horses, or worms. Topics include purchasing commercial antivirus programs and keeping them updated; updating virus definitions weekly; precautions before opening attached files; macro virus protection in Microsoft Word; and precautions with executable files. (LRW)

Crispen, Patrick Douglas

2000-01-01

3

Avast Free Antivirus  

NSDL National Science Digital Library

Avast Free Antivirus has been around for sometime, and this latest edition has some notable new features. Perhaps the most significant change here is the very helpful user interface, which includes a new tabbed section and a context sensitive help menu. Visitors can also use the real-time shields to protect against spyware and viruses originating from hundreds of sources. This version is compatible with computers running Windows 2000 and newer.

4

Securing anti-virus software with virtualization  

US Patent & Trademark Office Database

The subject disclosure relates to systems and methods that secure anti-virus software through virtualization. Anti-virus systems can be maintained separate from user applications and operating system through virtualization. The user applications and operating system run in a guest virtual machine while anti-virus systems are isolated in a secure virtual machine. The virtual machines are partially interdependent such that the anti-virus systems can monitor user applications and operating systems while the anti-virus systems remain free from possible malicious attack originating from a user environment. Further, the anti-virus system is secured against zero-day attacks so that detection and recovery may occur post zero-day.

2012-11-06

5

Game analysis on the market entry decisions into the mobile antivirus industry  

Microsoft Academic Search

The mobile antivirus software market is still at its early stage but many companies have entered this market. After analyzing the motivation of the antivirus companies, we find that the mobile antivirus market is not mature enough for so many companies to enter today. We use a game theoretical approach to examine the competition of mobile antivirus software providers. It

Weiguo Ye; Feida Lin

2009-01-01

6

Evolution of Computer Virus Concealment and AntiVirus Techniques: A Short Survey  

Microsoft Academic Search

This paper presents a general overview on evolution of concealment methods in computer viruses and defensive techniques employed by anti-virus products. In order to stay far from the anti-virus scanners, computer viruses gradually improve their codes to make them invisible. On the other hand, anti-virus technologies continually follow the virus tricks and methodologies to overcome their threats. In this process,

Babak Bashari Rad; Maslin Masrom; Suhaimi Ibrahim

2011-01-01

7

Impact of anti-virus software on computer virus dynamical behavior  

NASA Astrophysics Data System (ADS)

The impact of anti-virus software on the spreading of computer virus is investigated via developing a mathematical model in this paper. Considering the anti-virus software may not be effective, as it may be an outdated version, and then the computers may be infected with a reduced incidence rate. According to the method of next generation matrix, the basic reproduction number is derived. By introducing appropriate Lyapunov function and the Routh stability criterion, acquiring the stability conditions of the virus-free equilibrium and virus equilibrium. The effect of anti-virus software and disconnecting rate on the spreading of virus are also analyzed. When combined with the numerical results, a set of suggestions are put forward for eradicating virus effectively.

Sun, Mei; Li, Dandan; Han, Dun; Jia, Changsheng

2014-05-01

8

Effect of anti-virus software on infectious nodes in computer network: A mathematical model  

NASA Astrophysics Data System (ADS)

An e-epidemic model of malicious codes in the computer network through vertical transmission is formulated. We have observed that if the basic reproduction number is less than unity, the infected proportion of computer nodes disappear and malicious codes die out and also the malicious codes-free equilibrium is globally asymptotically stable which leads to its eradication. Effect of anti-virus software on the removal of the malicious codes from the computer network is critically analyzed. Analysis and simulation results show some managerial insights that are helpful for the practice of anti-virus in information sharing networks.

Mishra, Bimal Kumar; Pandey, Samir Kumar

2012-07-01

9

Coping with Computer Viruses: General Discussion and Review of Symantec Anti-Virus for the Macintosh.  

ERIC Educational Resources Information Center

Discusses computer viruses that attack the Macintosh and describes Symantec AntiVirus for Macintosh (SAM), a commercial program designed to detect and eliminate viruses; sample screen displays are included. SAM is recommended for use in library settings as well as two public domain virus protection programs. (four references) (MES)

Primich, Tracy

1992-01-01

10

The effect of computer virus occurrence and virus threat level on antivirus companies' financial performance  

Microsoft Academic Search

Computer virus incidents jumped 140 percent from May 2000 to May 20011. The international computer security association labs 8th annual survey has determined that 1.2 million computer virus incidents occurred in more than 900,000 computers in the year 20022. The antivirus market place has grown by 31 percentage revenue growth from 2001 to 20023. Even though enterprises are dedicating more

John R. Harrald; Sonia A. Schmitt; Sunil Shrestha

2004-01-01

11

EVOLUCIÓN INSTITUCIONAL ARGENTINA: SISTEMA DE GOBIERNO, PODER JUDICIAL, DERECHOS FUNDAMENTALES (1975-2005)  

Microsoft Academic Search

RESUMEN: El objeto de este trabajo es presentar -muy esquemáticamente- la evo- lución producida entre los años 1975\\/2005 en Argentina, en tres campos: sistema de gobierno, Poder Judicial y derechos fundamentales. En cada caso será necesario dis- tinguir cronológicamente los tramos y subtramos principales. En algunos, acoplar algunas veces datos posteriores al 2005, pero imprescindibles para una recta intelec- ción

Néstor Pedro Sagüés

2008-01-01

12

Les systèmes internationaux de protection radiologique : Principales structures et défis actuels  

Microsoft Academic Search

Depuis la prise de conscience, au début des années 1900, du fait que l’exposition aux rayonnements ionisants pouvait produire des effets néfastes sur la santé, les radioprotectionnistes ont collaboré à l’établissement d’une base scientifique permettant de décrire les risques liés aux rayonnements, de recommander les principales pratiques de protection contre ces risques et d’élaborer des normes internationales et des règlements

Edward Nicholas Lazo

2007-01-01

13

Sistemas de cúmulos globulares extragalácticos  

NASA Astrophysics Data System (ADS)

Se describen las características de los sistemas de cúmulos globulares asociados a galaxias elípticas en una variedad de medios y, en particular, aquellas vinculadas con la distribución espacial, frecuencia específica y composición química. Esta discusión se hace dentro de un conjunto de esquemas orientados a explicar las primeras fases de la formación de las galaxias dominantes en cúmulos y del rol de los sistemas de cúmulos globulares en esos procesos.

Forte, J. C.

14

O SISTEMA DE BRETTON WOODS E A DINÂMICA DO SISTEMA MONETÁRIO INTERNACIONAL CONTEMPORÂNEO  

Microsoft Academic Search

Resumo :O artigo discute o sistema de Bretton Woods e a dinâmica do Sistema Monetário Internacional depois do abandono do padrão dólar-ouro. Sustenta-se que o colapso do sistema de Bretton Woods legitimou a estruturação de um padrão de riqueza subjugado ao plano das finanças, ao invés da produção e do emprego. Neste sentido, a idéia de ressurgimento do sistema Bretton

GIULIANO CONTENTO DE OLIVEIRA; GERALDO MAIA; JEFFERSON MARIANO

2008-01-01

15

PROYECCIÓN DE SISTEMAS INTEGRADOS DE GESTIÓN  

Microsoft Academic Search

Los modelos normalizados para sistema de gestión tienen aspectos comunes en cuanto a principios, componentes, procesos, estructuras y requisitos lo que hace que la implantación de sistemas integrados de gestión sea una alternativa viable y recomendada para las empresas. En este trabajo se presenta un resumen de estos aspectos comunes para los sistemas de gestión de la calidad, el medio

Damarys Peña Escobio; Buenaventura Rigol Cardona; Mayra Moreno Pino

2009-01-01

16

LOS SISTEMAS INTEGRADOS DE GESTIÓN  

Microsoft Academic Search

La integración de los Sistemas de Gestión es un objetivo cada vez más generalizado de aquellas empresas que ya tienen implantada una norma de gestión de la calidad y el medio ambiente y que vienen gestionando la seguridad y salud a partir de la propia legislación y normas o modelos publicados. Por esta razón, se precisa de alguna norma ISO

Ana Maria Zayas Ramos; Gioivys Frometa Vázquez; Armenio Pérez Martínez

2008-01-01

17

Thoughts on Seeing "El Sistema"  

ERIC Educational Resources Information Center

The FESNOJIV (the Spanish acronym for the State Foundation for the National System of Youth and Children's Orchestras), more commonly known as "El Sistema," teaches 300,000 of Venezuela's poorest children in the nationwide music learning program. Many begin attending the "nucleo" as early as age two or three, and the vast majority continue well…

Booth, Eric

2009-01-01

18

Modelización de un sistema territorial \\  

Microsoft Academic Search

El desarrollo de una base de conocimiento común y sólida que permita la máxima objetividad y transparencia en la evaluación de la sostenibilidad dentro del proceso de toma de decisiones, constituye uno de los pilares básicos para su implementación en el planeamiento estratégico y la gestión del territorio. La caracterización del sistema ecológico-ambiental, económico, social e\\u000ainstitucional que es objeto

Arantzazu Urzelai; M. Olazábal; G. García; O. Santa Coloma; K. Herranz; Beñat Abajo; J. A. Acero; E. Feliu; I. Aspuru

1970-01-01

19

El modelo DRAG–España (IDE 1): Análisis de los principales factores de influencia en el número de accidentes en las carreteras Españolas  

Microsoft Academic Search

Resumen  En este trabajo se presentan los principales resultados obtenidos de los modelos de accidentes con heridos y accidentes mortales\\u000a ocurridos en carreteras interurbanas españolas, en el período 1990–2004, desarrollados en base a la metodología de modelos\\u000a econométricos DRAG (Demand Demande Routière, Accidents et Gravité). Las 19 variables utilizadas para el ajuste de los modelos\\u000a DRAG–España (I-DE 1), son de distinta

F. Aparicio; B. Arenas; E. Bernardos; A. Gómez

2009-01-01

20

El Sistema and American Music Education  

ERIC Educational Resources Information Center

The brainchild of Jose Antonio Abreu, El Sistema, a music education program for aspiring orchestra musicians launched in Venezuela for students of limited means and now spreading to other parts of the world, has become a subject of interest to music teachers and teacher educators in North America. This article examines a bit of the program's…

Lesniak, Melissa

2012-01-01

21

El sistema económico internacional en 2007  

Microsoft Academic Search

Este artículo analiza los hechos que han marcado el sistema económico internacional en el año vencido y las previsiones para el año que se inicia. El 2007 ha acabado con un ritmo de desarrollo mundial brillante en la sen- da de crecimiento iniciada hace ya diez años pero, mientras los países en desarrollo (liderados por China e India) siguen creciendo

Francesc Granell Trías

22

MODELADO Y SIMULACION DEL SISTEMA CARDIOVASCULAR FETAL  

Microsoft Academic Search

Resumen: En el modelado fisiológico, el propósito es comprender las funciones del cuerpo humano. Con este propósito, se abordan problemas del embarazo y el parto para minimizar las cesáreas innecesarias en mujeres propensas a cursar con Sufrimiento Fetal Agudo (SFA). En el presente estudio se realizó: el Modelado Matemático del Sistema Cardiovascular Fetal (SCVF), la Simulación y Validación del SCVF.

Rubén Moreno

23

Sistema de Web Mapping para Geologia Médica  

Microsoft Academic Search

Resumo - Este trabalho apresenta um sistema de Web Mapping para pesquisa em Geologia Médica, no qual, por meio de uma navegação em mapas interativos, epidemiologistas visualizam as distribuições espaciais de teores de elementos químicos em águas não tratadas (bacias hidrográficas) e dos coeficientes de morbi-mortalidade por doenças nos municípios. A sobreposição desses temas compõe um mapa onde se podem

Humberto Cereser Ibañez; Marilea Vieira de Camargo; Hélio Pedrini

24

SISTEMA DE INDICADORES PARA LA EVALUACIÓN DE LA APLICACIÓN DEL SISTEMA DE GESTIÓN AMBIENTAL EN EMPRESAS CONSTRUCTORAS  

Microsoft Academic Search

Se tuvo como objetivo la propuesta de un sistema de indicadores para la evaluación de la aplicación del Sistema de Gestión Ambiental en empresas constructoras y la elaboración de un software para el procesamiento de los mismos, que contribuya a elevar la eficacia de la evaluación del desempeño ambiental y los resultados de las organizaciones de este tipo. Este sistema

Ninfa del Carmen Moncada Serrano

2012-01-01

25

Nuevos sistemas de frecuencia intermedia para el IAR  

Microsoft Academic Search

Se presenta el diagrama en bloques de los nuevos sistemas de Frecuencia Intermedia para los dos radiómetros instalados en el IAR. Entre las características más importantes del sistema podemos mencionar la posibilidad de conectar cualquiera de las dos antenas a los ``backend\\

J. C. Olalde; D. Perilli; J. J. Larrarte

1996-01-01

26

EL HÁBITAT MEDITERRÁNEO CONTINENTAL: UN SISTEMA HUMANIZADO, CAMBIANTE Y VULNERABLE  

Microsoft Academic Search

Resumen En este capítulo mostraremos que, tanto el clima mediterráneo como la estructura y funcionamiento de los ecosistemas mediterráneos, han estado en constante cambio durante los últimos millones de años. Veremos la importancia de incluir la interven- ción humana para comprender los procesos que han dado lugar a los ecosistemas que ahora tenemos. Repasaremos las principales amenazas actuales que se

Fernando VALLADARES

2007-01-01

27

La Planeación Agregada Analizada Desde El Enfoque De La Dinámica De Sistemas  

Microsoft Academic Search

El reciente interés que ha despertado la dinámica de sistemas como método para analizar los sistemas de producción a partir de la modelación de sistemas simplificados, ha permitido a investigadores probar diferentes estrategias aplicables se muestra la utilidad de la modelar sistemas de producción,de planeación agregada. La ilustración del explicación de los resultados brindan al lector la posibilidad de comprender

Juan Carlos Vergara Schmalbach; Víctor Manuel Quesada Ibargüen; Melissa Manga Altamar; Vanessa Restrepo Torres

2010-01-01

28

El problema de estabilidad de los sistemas Hamiltonianos multidimensionales  

NASA Astrophysics Data System (ADS)

Se revisarán los aspectos básicos del problema de estabilidad de sistemans Hamiltonianos N-dimensionales, haciendo especial énfasis en los posibles mecanismos que dan lugar a la aparición de ``caos": overlap de resonancias, difusión de Arnol'd y otros procesos difusivos alternativos. Se mencionarán los aspectos aún no resueltos sobre la estabilidad de los sistemas con N > 2. Finalmente, se discutirá cuáles de estos mecanismos podrían tener alguna relevancia en la dinámica de sistemas estelares y planetarios.

Cincotta, P. M.

29

Bases para el diseño de un plan estratégico de la Unidad del Sistema de Parques Nacionales y el Sistema Nacional de Áreas Protegidas  

Microsoft Academic Search

Colombia cuenta con el Sistema de Parques Nacionales Naturales -SPNN- y está en el proceso de constituir un Sistema Nacional de Áreas Protegidas -SINAP- que articule la variedad de áreas protegidas de iniciativa municipal, departamental, regional, colectiva y privada. La Unidad Administrativa Especial del Sistema de Parques Nacionales Naturales -UAESPNN- es la entidad responsable de administrar el primero de estos

Francisco Alberto Galán

2006-01-01

30

Discos de acresção em sistemas Be-X  

NASA Astrophysics Data System (ADS)

Alguns fenômenos de outbursts em Be-X sugerem a existência, mesmo que temporária, de um disco de acresção quando da passagem do objeto compacto pelo periastro orbital. Neste trabalho avaliamos a possibilidade de formação do disco de acresção em sistemas Be+estrela de neutrons e Be+anã branca, e a influência da excentricidade orbital na ocorrência deste fenômeno. Utilizamos a expressão analítica para o momento angular específico da matéria constituinte de um meio em expansão lenta, como é o caso do disco circunstelar das estrelas Be, proposta por Wang(1981), sob a condição básica de que o raio de circularização deva ser maior do que o raio de Alfvén. Concluímos que existe um limite para o período orbital do sistema acima do qual não é possível a formação do disco de acresção, e que este valor aumenta para sistemas com excentricidade orbital maior.

Lopes de Oliveira, R.; Janot-Pacheco, E.

2003-08-01

31

Modelamiento de Sistemas Biológicos Usando Cálculos de Procesos Concurrentes \\/ Modelling Biological Systems using Process Calculi  

Microsoft Academic Search

(Español) Los calculos de procesos son formalismos propuestos para modelar sistemas concurrentes en diversosambitos. Su fundamentacion matematica permite establecer abstracciones entre los elementos reales de los sistemas y los componentes basicos del calculo, lo que facilita la verificacion de propiedades interesantes de los sistemas modelados. Estas caracter´isticas perfilan a los calculos de procesos como una alternativa interesante para especificar y

Julian Gutierrez; Jorge Andres Perez; Camilo Rueda

2005-01-01

32

LOS SISTEMAS INTEGRADOS DE GESTIÓN. UNA ALTERNATIVA METODOLÓGICA PARA SU DISEÑO E IMPLANTACIÓN  

Microsoft Academic Search

En este artículo se presentan consideraciones que facilitan la implantación de los sistemas de gestión en organizaciones que tienen implantado, o pretenden implantar, el sistema de dirección y gestión empresarial conforme a lo establecido en el decreto No.281 del Comité Ejecutivo del Consejo de Ministros de la República de Cuba y como parte de este los sistemas de control interno

Mayra R. Moreno Pino; María del Carmen Proenza Rivas; Martín Alberto Ayala López; Rossio Coya Cáceres; Iosvani Segura Leyva

2011-01-01

33

CAMBIO POLÍTICO Y SISTEMAS DE GESTIÓN EN GOBIERNOS LOCALES  

Microsoft Academic Search

En primer lugar, nos encontramos ante un trabajo pionero en el análisis de la alternancia política y su impacto en los sistemas de gestión de los municipios mexicanos. En segunda instancia es una obra novedosa ya que aplica métodos empíricos para medir el grado de implantación de la nueva gestión pública (NGP) y la gobernabilidad democrática.

Rigoberto Soria Romo

2012-01-01

34

Aspetti evolutivi del sistema agro-alimentare in Algeria  

Microsoft Academic Search

Aspetti evolutivi del sistema agro-alimentare in Algeria (di Antonio Guariglia) - ABSTRACT: Even if it’s estimated that Algeria has potentially around 39 millions hectares of cultivable grounds, at present, the SAU is estimated equal to only 8 millions hectares (3% of territorial surface) situated in the almost totality along the fruitful and narrow coastal plan, while around 31 thousand hectares

Antonio Guariglia

2000-01-01

35

SITACI: Un sistema de transferencia de datos de código abierto  

Microsoft Academic Search

Este trabajo presenta los lineamientos seguidos para el desarrollo de un sistema de transferencia de datos realizado por la Administración Nacional de la Seguridad Social (ANSES) utilizando componentes de software libre y puesto a disposición de otros organismos también en carácter de software libre. Se presentan los parámetros considerados para asegurar la adaptación a diversos entornos productivos y las posibilidades

Eduardo M. Zavalla; Jorge Landoni; Alberto Mariuzzo

36

Integración y consolidación en el sistema financiero europeo  

Microsoft Academic Search

Este artículo ofrece un panorama de la evolución de la actividad de fusiones y adquisiciones en el sector financiero europeo en el período transcurrido desde la introducción de la moneda única y analiza sus implicaciones sobre el grado de integración del sistema financiero europeo y sobre la rentabilidad, evaluada a distintos horizontes, de las empresas involucradas en los procesos de

Jose M. Campa; Ignacio Hernando

2006-01-01

37

PROYECTO ESTRATÉGICO PARA UN SISTEMA DE INFORMACIÓN MEDIOAMBIENTAL  

Microsoft Academic Search

Este documento muestra algunos de los problemas reales en la Empresa Constructora de Obras de Arquitectura 44 de la provincia de Villa Clara, la cual a pesar de tener una política, visión y misión medioambiental no cumple con las exigencias de los actuales momentos al no contar con un sistema de gestión de la información, se buscan alternativas y un

Ramón Fernández Paret

2011-01-01

38

HD 208905: um sistema múltiplo de estrelas quentes  

NASA Astrophysics Data System (ADS)

Durante o survey de associações OB do disco Galáctico, foi constatada a multiplicidade do sistema HD 208905, pertencentes à associação de Cep OB2. Este objeto está classificado como uma estrela pertencente a um sistema múltiplo, com magnitude mv = 7.0 e tipo espectral B1V. De fato, os espectros de HD 208905 apresentam perfis de absorção triplicados. Dois dos perfis são bastante similares entre si, e são estreitos e bem definidos, sugerindo que as velocidades rotacionais projetadas (v sin i) das duas estrelas são baixas. Os espectros obtidos também apresentam perfis mais alargados que poderiam ser atribuídos a uma terceira componente estelar com v sin i mais alto. A análise de HD 208905 é baseada no estudo da variação da posição relativa dos perfis espectrais de acordo com a fase do sistema. Nossos dados observacionais são um conjunto de espectros de alta resolução obtidos no McDonald Observatory (Universidade do Texas, Austin), Kitt Peak National Observatory e Palomar Observatory, cobrindo o período de 10/91 até 12/95. Inicialmente, calculamos a velocidade radial de cada componente do sistema, considerando o desvio Doppler sofrido por cada estrela. As velocidades radiais medidas foram, em seguida, corrigidas para velocidades radiais heliocêntricas. O passo seguinte constituiu na determinação da periodicidade da série temporal definida pelas medidas das velocidades radiais heliocêntricas através da análise de Fourier. A nossa base de dados não permitiu definir uma solução única para o sistema HD 208905. As possíveis soluções encontradas têm períodos entre 1 e 27 dias e serão apresentadas e discutidas.

Candeias, J. P.; Daflon, S.; Cunha, K.

2003-08-01

39

Sistema Planeta-Satélite. Simulación orbital y potenciales gravitatorios  

NASA Astrophysics Data System (ADS)

Se presenta un programa (desarrollado en Quick Basic 4.5) que simula, en tres dimensiones, el movimiento orbital de un satélite (o luna) alrededor de un planeta, al tiempo que calcula y grafica, en un plano, el potencial gravitatorio del sistema en función de la distancia al planeta. Para la simulación orbital, se emplea la matriz de transformación entre el sistema del planeta y el plano orbital. Para el cálculo y graficación del potencial se aplica un desarrollo en serie hasta el segundo orden, que da cuenta del efecto de achatamiento de los polos, en caso de que éste exista. Las longitudes de los ejes del planeta, la masa de éste y del satélite, sus tamaños aparentes, y los parámetros orbitales son introducidos por el usuario.

Medina, C.; Carrillo, M.

40

Il sistema dei controlli in banca. Principi e schemi per un approccio integrato  

Microsoft Academic Search

Il sistema dei controlli in banca. Principi e schemi per un approccio integrato (di Mario Venturino) - ABSTRACT: Il sistema dei controlli in banca comprende il controllo della governance, il controllo gestionale ed il controllo interno e per ognuno si definiscono obiettivi, contenuti, soggetti e strutture coinvolti, fonti normative e regolamentari. Nella prima parte, di carattere preliminare, si introducono modelli

Mario Venturino

2006-01-01

41

DIAGNOSTICO DEL SISTEMA DE GESTIÓN DE LA CALIDAD SEGÚN LA NC ISO 9001:2008  

Microsoft Academic Search

El presente trabajo se realizó en una entidad dedicada a la prestación de servicios logísticos, el cual posee Certificado el Sistema de Gestión de la Calidad en lo adelante (SGC) según la NC ISO 9001\\/2008. Se trazó como objetivo diagnosticar el Sistema de Gestión de la Calidad, Tomando como guía la NC ISO 9001\\/2008. Para el desarrollo de esta investigación

Arles Segura Maturell

2011-01-01

42

Sistema de seguridad de imágenes digitales empleando Transformada Fraccional de Fourier Discreta y Transformada Jigsaw  

Microsoft Academic Search

Un sistema de seguridad de imágenes digitales basad o en La Transformada Fraccional de Fourier Discreta (DFrFT) y La Transformada Jigsaw es propuesto. El sistema de seguridad propuesto utiliza un equipo emisor (PC) para encrip tar la imagen digital junto con una clave alfanumérica, dicha ima gen digital encriptada es real y tiene el mismo tamaño que la i magen

43

Reflexiones sobre el sistema y las políticas de innovación del País Vasco  

Microsoft Academic Search

El primer capítulo de este documento compara el sistema de innovación vasco con el de otros países avanzados, basándose para ello en las estadísticas de I+D y en el indicador europeo de innovación (EIS). En segundo lugar, el sistema vasco se compara con el de otras regiones, basándose en las tipologías de regiones europeas y españolas elaboradas por el autor,

Mikel Navarro

44

Contribución a los sistemas integrados de gestión desde la perspectiva del directivo  

Microsoft Academic Search

El presente artículo tiene como objetivo mostrar una propuesta de un modelo y procedimiento para la implantación de un sistema integrado de gestión. Sustenta el marco teórico referencial de esta investigación, el análisis realizado de los criterios de algunos autores sobre el concepto de integración y sistema integrado de gestión (SIG), así como en las concepciones teóricas actuales sobre algunas

Elizabeth Guilarte Barinaga

2011-01-01

45

Coordinación de los sistemas de gestión de calidad, medio ambiente y salud laboral  

Microsoft Academic Search

La aparición sucesiva de los tres sistemas de gestión mencionados en el título, junto con los diferentes ámbitos de aplicación de los mismos, ha llevado a que las empresas los hayan puesto en marcha de manera independiente. A pesar de las numerosas similitudes entre los objetivos y procedimientos contemplados en dichos sistemas, por razones históricas y, en muchos casos, por

Miguel A. Rodriguez; Joan E. Ricart

2000-01-01

46

Antivirus and immune enhancement activities of sulfated polysaccharide from Angelica sinensis.  

PubMed

This study is to synthesize sulfated Angelica polysaccharides (APSs) and investigate the activity of one of the sulfated derivatives APS-1 on murine leukemia virus in vivo. Six sulfated derivatives with degree of sulfation ranging from 0.68 to 1.91 were obtained. And the virus replication was inhibited by APS-1 at the dose of 10 and 30 mg/kg (26% and 30% inhibition respectively). Furthermore, both the percentage of CD4(+) cells and CD4(+)/CD8(+) ratio in peripheral blood cells were significantly enhanced by APS-1 at 3-30 mg/kg. In addition, the reduced thymus/body weight index by murine leukemia virus infection was increased by ASP-1 in a dose dependent manner. These results suggest that APS-1 could not only inhibit virus replication, but also improve the immune function. APS-1 may be a potential new and better antiviral drug. PMID:22155400

Yang, Tiehong; Jia, Min; Zhou, Siyuan; Pan, Feng; Mei, Qibing

2012-04-01

47

Budding of Enveloped Viruses: Interferon-Induced ISG15--Antivirus Mechanisms Targeting the Release Process  

PubMed Central

Pathogenic strains of viruses that infect humans are encapsulated in membranes derived from the host cell in which they infect. After replication, these viruses are released by a budding process that requires cell/viral membrane scission. As such, this represents a natural target for innate immunity mechanisms to interdict enveloped virus spread and recent advances in this field will be the subject of this paper.

Seo, Eun Joo; Leis, Jonathan

2012-01-01

48

El cáncer según su ubicación en el cuerpo: Sistema reproductor femenino  

Cancer.gov

In English En español In English En español El cáncer según su ubicación en el cuerpo: Sistema reproductor femenino Para buscar un tipo de cáncer, seleccione su ubicación en el cuerpo — Aparato locomotor Aparato respiratorio y tórax Cabeza y

49

Instantánea de los cánceres de cerebro y del sistema nervioso central  

Cancer.gov

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

50

Comportamiento social emergente - Formacion de Reglas y Simbolos a traves de la Dinamica de Sistemas  

Microsoft Academic Search

Abstract—Este articulo trata de mostrar,algunos de los conceptos principales en el campo,de vida artificial a fin de enfocarse en el concepto de emergencia, el cual es uno de los mas importantes en este campo,y en el cual se presentan,varios tipos de problemas interesantes a estudiar. La emergencia,presenta,distintos tipos de mecanismos,a partir de los cuales se establecen etapas claramente diferenciadas,en las

Jean Paul Manjarres Correal

51

Things to Remember about El Sistema: A Response to "El Sistema--A Perspective for North American Music Educators" by Tricia Tunstall  

ERIC Educational Resources Information Center

Melissa Lesniak, the executive director of the Greater Miami Youth Symphony, discusses how much she enjoyed reading the responses to her "El Sistema" article and appreciates the opportunity for healthy dialogue and debate. In response, she states that there are many common goals and objectives across all music education programs that can…

Lesniak, Melissa

2013-01-01

52

Uma Análise Tipológica da Dinâmica dos Arranjos e Sistemas Produtivos e Inovativos Locais (Aspil?S) Do Nordeste do Brasil  

Microsoft Academic Search

O presente trabalho tem como objetivo apresentar a dinâmica produtiva e inovativa dos Arranjos e Sistemas Produtivos e Inovativos Locais (ASPILs), tendo como foco os ASPILs nordestinos. Para tanto, foi utilizado o arcabouço da teoria evolucionária tendo por base o conceito de Sistema Nacional de Inovação do qual gerou a conceituação de ASPIL. Assim, buscou-se apresentar a dinâmica de arranjos

Diogo Araújo Sampaio

53

Ponencia MicrAS : UNA EXPERIENCIA DE CAMBIO DE PARADIGMAS EN ECONOMÍA CON MICROMUNDOS DESARROLLADOS CON DINÁMICA DE SISTEMAS  

Microsoft Academic Search

RESUMEN La crisis generalizada a que nos vemos abocados parece obedecer en g ran parte a las múltiples deficiencias que presenta por un lado el sistema educativo y por otro la teoría económica, esto se refleja en el comportamiento del sistema económico sometido a la aplicación de políticas que pretenden dar solución a problemas de una gran complejidad. Una alternativa

HUGO H. ANDRADE; ADRIANA R. LIZCANO; ELIÉCER PINEDA

54

Sistema de tratamiento y disposicion final de los residuos urbanos en la Region Metropolitana de Salvador, Bahía  

Microsoft Academic Search

Este artículo trata de las innovaciones tecnicas en el tratamiento de los residuos industriales en la región metropolitana de Salvador y las principales medidas adoptadas para una gestión ambiental de la petroquímica en Bahia, Brasil. La adopción de procedimientos y criterios en conformidad con las normativas internacionales añade una nueva dimensión en la gestión del espacio regional.

Hilda Maria de Carvalho Braga

2007-01-01

55

Cuadro de mando y sistemas de información: herramientas estratégicas para la gestión medioambiental corporativa  

Microsoft Academic Search

En la actualidad protección del ambiente es un nuevo e importante objetivo estratégico de las empresas cubanas y del mundo. La información medioambiental se vuelve cada vez más relevante para las decisiones económicas, por lo que es necesario manejarla de manera oportuna. Muchas entidades presentan Sistemas de Gestión Medioambientales según NC ISO 14000 que se quedan en fases meramente declarativas

Frank Medel; Lourdes García; Liesby Gómez; Rebeca Pentón

2011-01-01

56

EVALUACIÓN DEL IMPACTO DE LA IMPLEMENTACIÓN DEL SISTEMA DE CUENTA ÚNICA EN EL MUNICIPIO JOBABO  

Microsoft Academic Search

Vivimos en un mundo caracterizado por una fuerte crisis económica en medio de la globalización que nos afecta. Nuestro país no está ajeno a esta situación, y a pesar de las medidas adoptadas para el control de la legalidad en aras de evitar violaciones y descontrol de los bienes materiales y financieros, el sistema contable sigue siendo afectado por lo

Maray Say Morales; Andrés Cabreja Espinosa; Adis Martha Exposito Caballero; Esmel Fernández Pérez; Daniel Esquivel Barreiro; Flora Margarita Escudero Samaniego

2011-01-01

57

DIAGNÓSTICO AL SISTEMA DE GESTIÓN DE LA CALIDAD EN LA VILLA MIRADOR DE MAYABE, HOLGUÍN  

Microsoft Academic Search

El trabajo fue realizado en la Villa Mirador de Mayabe con el propósito de diagnosticar el sistema de gestión de la calidad que presenta la entidad, teniendo presente la Norma Cubana ISO 9001: 2008, así como valorar el funcionamiento de los elementos que estructura la Gestión Estratégica de la entidad como proceso rector y punto de partida de la gestión

Yunelsy Ortiz Chávez; Amaury Ricardo Garrido Tapia

2012-01-01

58

O efeito do achatamento nos pontos de equilíbrio e na dinâmica de sistemas coorbitais  

Microsoft Academic Search

Neste trabalho analisamos o efeito do achatamento do corpo principal nos pontos de equilíbrio lagrangianos e na configuração de órbitas girino-ferradura. Enfatizamos os sistemas coorbitais de satélites de Saturno, pois se encontram em relativa proximidade com o planeta, em que o efeito do achatamento se torna mais evidente. O estudo é dividido em três etapas independentes. Na primeira fase analisamos

D. C. Mourão; O. C. Winter; T. Yokoyama

2003-01-01

59

Influência da Proximidade Geográfica na Dinâmica Inovativa de Firmas Localizadas em Sistemas Locais de Inovação  

Microsoft Academic Search

Propõe-se uma discussão a respeito da compreensão da dinâmica inovativa de firmas pertencentes a Sistemas Locais de Produção (SLPs). O objetivo é compreender a dinâmica inovativa de firmas localizadas em SLPs por meio das características dos fluxos de informação e conhecimento estabelecidos pelas firmas. Para tanto, foi realizada uma investigação de campo comparativa entre dois aglomerados do segmento produtor de

Janaína Ruffoni; Wilson Suzigan

2012-01-01

60

Método híbrido topológico-global para la dinámica de sistemas mecánicos multicuerpo  

Microsoft Academic Search

Resumen Las cada vez mayores prestaciones de los ordenadores personales, hacen posible la simulación dinámica en tiempo real del movimiento de sistemas mecánicos multicuerpo complejos, tales como el modelo completo de un vehículo automóvil, en un PC convencional de 1.200 €, si se dispone de la formulación adecuada. Existen dos grandes familias de formulaciones dinámicas según el tipo de coordenadas

J. Cuadrado; D. Dopico

61

SISTEMA REMOTO DE ADQUISICIÓN PARA EL CONTROL DEL RUIDO AMBIENTAL CON FPGA Y FPAA  

Microsoft Academic Search

RESUMEN Este artículo propone el diseño de un sistema de adquisición de datos con componentes digitales y analógicos microelectrónicos reconfigurables, como son el FPGA (Field Programmable Gate Array) y el FPAA (Field Programmable Analog Array), para monitorear y analizar la contaminación por ruido ambiental. Este prototipo obtiene los datos del ruido de una zona vial (zona centro de una ciudad)

A. Castillo Atoche; J. Vázquez Castillo; V. Sanchez Huerta; P. Del Río Dawn

62

MAgentA: Un Sistema Multi Agente per la Gestione di Agende e Riunioni  

Microsoft Academic Search

In questo articolo viene presentato MAgentA, un sistema multi-agente sviluppato nel contesto del progetto interu- niversitario ANEMONE allo scopo di gestire agende e pianificare riunioni tra gli utenti in modo semiautomatico. Ogni agenda è gestita da un agente che conosce gli impegni personali e le preferenze di un particolare utente, mentre le riunioni vengono organizzate da un apposito agente in

Pietro Baroni; Alfonso Gerevini; Paolo Toninelli

2005-01-01

63

La divulgación de la información medioambiental contenida en el sistema de información contable  

Microsoft Academic Search

En el siguiente trabajo, se analizará la Información Medioambiental contenida en los Sistemas de Información Contable e incluida en sus Informes Financieros, pertenecientes a empresas radicadas en Argentina. Pare ello se confeccionará una muestra de 171 empresas que cotizan en la Bolsa de Buenos Aires. El trabajo posee dos ejes centrales, en primer lugar se analizarán variables como Información Medioambiental

Diego Sebastián Escobar

2009-01-01

64

Social Responsibility and Community Development: Lessons from the Sistema de Aprendizaje Tutorial in Honduras  

ERIC Educational Resources Information Center

This article extends understanding of the connections between education, social capital, and development through a mixed-methods case study of the Sistema de Aprendizaje Tutorial, or SAT, an innovative secondary-level education system. The quantitative dimension of the research used survey measures of social responsibility to compare 93 SAT…

Honeyman, Catherine A.

2010-01-01

65

Another Perspective: El Sistema--A Perspective for North American Music Educators  

ERIC Educational Resources Information Center

Herein, Tricia Tunstall presents a critique of the article by Melissa Lesniak published in the December 2012 "Music Educators Journal," and offers a new perspective on the Venezuelan youth orchestra program known as "El Sistema." The program, which began in Caracas thirty-eight years ago, is dedicated to changing the lives of…

Tunstall, Tricia

2013-01-01

66

El enfoque de sistemas y de contingencias aplicado al proceso administrativo  

Microsoft Academic Search

El presente artículo corresponde a una reflexión sobre el proceso administrativo de las organizaciones (las funciones de planeación, organización, dirección o influencia y control) desde la perspectiva del enfoque de sistemas y de contingencias. Para ello se abordan los planteamientos más representativos de los distintos enfoques, desde el enfoque clásico, hasta los aportes más contemporáneos. El artículo finaliza con una

Francisco Velásquez Vasquez

2000-01-01

67

SISTEMA PARA GESTIONAR LA ACTIVIDAD CIENTÍFICA DEL DEPARTAMENTO DE INFORMÁTICA DE LA UNIVERSIDAD DE GUANTÁNAMO  

Microsoft Academic Search

El sistema para gestionar la actividad científica del Departamento de Informática de la Universidad de Guantánamo surge debido a la necesidad de gestionar de manera más rápida, segura y eficaz los procesos que se desarrollan actualmente en dicho centro. Fue desarrollado utilizando los lenguajes PHP del lado del servidor con CodeIgniter como framework y JavaScript del lado del cliente. Se

Denis Boizan Romero

2012-01-01

68

Implementación del Clinical Document Architecture Standard en un Sistema de Información Clínico  

Microsoft Academic Search

Resumen: Cada día son más las instituciones con sistemas de información hospitalarios. Con el advenimiento de las distintas tecnologías y estándares disponibles, actualmente pueden satisfacerse muchas de las necesidades de intercambio de información. Utilizar un formato estándar para los documentos clínicos aumenta las posibilidades de lograr interoperabilidad. El CDA (Clinical Document Architecture) de HL7 es un estándar de documentos marcados

Adrian Gomez; Fernando Plazzotta; Fernando Campos; Marcela Martinez; Daniel Luna

69

Projeto do sistema anti-ressonante da fiação dos transdutores para o detector Mario Schenberg  

NASA Astrophysics Data System (ADS)

O detector de ondas gravitacionais Mario Schenberg está sendo projetado e construído pelo grupo Gráviton. Sua construção está ocorrendo no Laboratório de Estado Sólido e Baixas Temperaturas (LESBT) da Universidade de São Paulo, na cidade de São Paulo. Esse detector possui uma massa ressonante esférica de cobre-alumínio, com 65 cm de diâmetro, pesando aproximadamente 1150 Kg, suspensa por um sistema de isolamento vibracional, que se encontra em fase de testes preliminares. A real eficácia desse sistema, entretanto, só poderá ser comprovada quando o detector estiver aparelhado com, pelo menos, um transdutor eletromecânico de altíssima sensibilidade acoplado à massa ressonante. Neste momento, não só este sistema de isolamento vibracional será posto em teste, como o do projeto da fiação que transporta os sinais de microondas até os transdutores e destes para a pré-amplificação. Apesar dessa fiação ter sido projetada para não apresentar nenhum contato com a superfície esférica da antena, de maneira a não haver nenhuma transmissão de ruído vibracional do laboratório para esta, deve-se minimizar o ruído microfônico produzido nessa fiação por oscilações mecânicas, uma vez que ela não utiliza nenhum sistema de isolamento vibracional. Com o intuito de resolver este problema, projetamos uma estrutura, formada por pequenos cilindros conectados por barras, a qual não terá nenhuma ressonância mecânica na faixa de freqüências de interesse para detecção (3000 - 3400 Hz). Desta forma, as vibrações nessa faixa não serão amplificadas. O projeto foi feito usando iterativamente, de maneira a otimizar os resultados obtidos, o programa de elementos finitos Msc/Nastran. Através de simulações feitas neste programa, determinamos os parâmetros geométricos ideais a serem utilizados, os quais proporcionam a maior região espectral de interesse livre de ressonâncias.

Vieira, S. J.., Jr.; Melo, J. L.

2003-08-01

70

Análisis de hidrocarburos policíclicos aromáticos y nitrosaminas en sistemas modelo de gelatina mediante SPME-DED  

Microsoft Academic Search

Resumen Se llevó a cabo la determinación de 16 hidrocarburos aromáticos policíclicos y 9 nitrosaminas en sistemas modelo de gelatina (20% w\\/v) mediante microextración en fase sólida acoplada a un dispositivo de extracción directa y posterior análisis mediante cromatografía-gaseosa-espectrometría de masas. La extracción se llevo a cabo a 25ºC. Se extrajeron la totalidad de las nitrosaminas y 9 de los

J. Ruiz Carrascal; S. Ventanas Canillas; D. Martín García; T. Pérez Palacios; Tecnología de Alimentos; Facultad de Veterinaria

71

UMA ABORDAGEM DA MECÂNICA LAGRANGEANA APLICADA A SISTEMAS DE MULTICORPOS - SEGUNDA PARTE: APLICAÇÃO  

Microsoft Academic Search

Na primeira parte deste trabalho foi desenvolvida a formulação lagrangeana que conduziu às equações algébrico-diferenciais do movimento para sistemas de multicorpos rígidos bidimensionais, sujeitos a restrições cinemáticas. Nesta segunda parte discutem-se os procedimentos de resolução numérica das equações do movimento. Empregando um mecanismo biela-cursor-manivela como exemplo, são desenvolvidas detalhadamente as equações do movimento e as equações de restrição. Em seguida,

Cleves Mesquita Vaz; Domingos Alves Rade; Elson Lima de Albuquerque

72

A facile one-step hydrothermal synthesis of rhombohedral CuFeO2 crystals with antivirus property.  

PubMed

The rhombohedral-like CuFeO(2) crystals are synthesized via a facile hydrothermal route by using propionaldehyde as a reducing agent. The obtained CuFeO(2) crystals show promising efficiency in the inactivation of bacteriophage Q?. PMID:22711005

Qiu, Xiaoqing; Liu, Min; Sunada, Kayano; Miyauchi, Masahiro; Hashimoto, Kazuhito

2012-07-28

73

On efeito do achatamento nos pontos de equilíbrio e na dinâmica de sistemas coorbitais  

NASA Astrophysics Data System (ADS)

Neste trabalho analisamos o efeito do achatamento do corpo principal nos pontos de equilíbrio lagrangianos e na configuração de órbitas girino-ferradura. Enfatizamos os sistemas coorbitais de satélites de Saturno, pois se encontram em relativa proximidade com o planeta, em que o efeito do achatamento se torna mais evidente. O estudo é dividido em três etapas independentes. Na primeira fase analisamos as equações de movimento do problema restrito de três corpos considerando o efeito do achatamento, e através do balanceamento de forças buscamos a nova configuração dos pontos de equilíbrio lagrangianos. Concluímos, nesta etapa, que os pontos de equilíbrio estáveis apresentam um pequeno deslocamento definido pelo parâmetro de achatamento, não podendo ser mais representados por triângulos eqüiláteros. Aplicamos este resultado aos satélites coorbitais de Tetis e Dione, encontrando as posições de equilíbrio levemente deslocadas em relação ao caso sem achatamento. Na segunda fase visamos o sistema Saturno-Jano-Epimeteu, que por se tratar de um sistema de massas comparáveis, optamos por desenvolver as equações de Yoder et al (Icarus 53, pág 431-443, 1983), que permitem determinar os pontos de equilíbrio e a amplitude de oscilação angular das órbitas girino-ferradura para o problema não-restrito de três corpos, porém, no nosso estudo consideramos o efeito do achatamento do corpo principal nestas equações. Encontramos que a distância angular entre satélites, quando em posição de equilíbrio estável, diminui quanto maior for o parâmetro de achatamento do corpo principal. Além disso, a órbita de transição girino-ferradura possui largura angular menor em relação ao caso sem achatamento. Por fim, realizamos integrações numéricas para os casos reais de coorbitais de Saturno comparando com os resultados analíticos. Nestas integrações simulamos diversas órbitas girino-ferradura com diferentes parâmetros de achatamento, utilizando condições iniciais corrigidas para a presença do achatamento.

Mourão, D. C.; Winter, O. C.; Yokoyama, T.

2003-08-01

74

Correlação de longo alcance em sistemas binários de raios-x usando remoção de flutuações  

NASA Astrophysics Data System (ADS)

Neste trabalho é proposta uma metodologia de analise de series temporais de fontes astrofísicas, baseada no método proposto por Peng et al. (1994) e Liu et al. (1999), o qual consiste na idéia de que uma série temporal correlacionada pode ser mapeada por um processo de busca de auto-similaridades em diversas escalas de tempo n. Removendo as eventuais tendências e integrando o sinal observado, é obtida uma medida do desvio médio quadrático das flutuações do sinal integrado F(n)~na, onde a representa o fator de escala associado com a auto-similaridade da correlação de longo alcance do sinal. Baseado nos valores obtidos de a, é possível distinguir entre os casos de sinais não-correlacionados, tipo ruído branco (a = 0,5), sinal anti-persistentes (a < 0,5) e sinal persistente (a > 0,5). Usando esta metodologia, foram analisadas 129 curvas de luz de sistemas binários de raios-X, provenientes do banco de dados públicos de observações feitas pelo instrumento All Sky Monitor, a bordo do satélite Rossi X-Ray Timing Explorer (ASM-RXTE). Foram identificadas a presença de a'0,5 em mais de 90% dos sistemas estudados, implicando em dizer que as flutuações de intensidade observadas apresentam correlação de auto-similaridade, sem entretanto, indícios de apresentarem uma escala de tempo característica das flutuações de intensidade. Sistemas onde são observadas erupções (flares), apresentam sistematicamente a > 0,5, característica esta, possivelmente associada com persistência das flutuações de densidade de disco ou taxa de acréscimo de massa. Os sistemas com curvas de luz onde nao são observadas as erupções apresentam uma distribuição normal centrada em a~0,62+/-0,10. Referências ¾ Peng, C.-K., Buldyrev, S.V., Havlin, S., Simons, M., Stanley, H.E., e Goldberg, A.L., Phys. Rev. E, (49), 1685 (1994). ¾ Liu, Y., Gopikrishnan, P., Cizeau, P., Meyer, M., Peng,C.-K., e Stanley, H.E., Phys. Rev. E, (60), 1390 (1999).

Pereira, M. G.; Moret, M. A.; Zebende, G. F.; Nogueira, E., Jr.

2003-08-01

75

PROCEDIMIENTO PARA EL DISEÑO E IMPLANTACIÓN DEL SISTEMA INTEGRADO DE GESTIÓN DE LA CALIDAD, GESTIÓN AMBIENTAL Y GESTIÓN DE LA SEGURIDAD Y SALUD EN EL TRABAJO  

Microsoft Academic Search

El este trabajo se presenta una propuesta de un procedimiento para la implantación de un sistema integrado de gestión. Basado en el enfoque a procesos y la filosofía de la mejora continua que permite integrar en un mismo sistema, la gestión de la calidad, gestión ambiental y gestión de la seguridad y salud en el trabajo. La implementación del procedimiento

Yonimiler Rodríguez García; Yurebi Cruz Cordovés

2009-01-01

76

Una Metodología para Ajustar y Compensar las Diferencias de Riesgo entre el Sistema Público y Privado de Salud en Chile  

Microsoft Academic Search

En el marco conceptual de seguros de salud y ajuste de riesgo y a la luz de la experiencia internacional en Fondos de Compensación de Riesgos, este documento explora el problema del «descreme» que afecta al sistema de seguros Chileno. Se presenta una metodología para estimar diferencias de riesgo entre el sector público y privado de salud en Chile y

Verónica Vargas; Camilo Cid; Mauricio Matus; Iris Delgado; José Miguel Sánchez; Beatriz Heyermann; José Angulo

77

Evaluación de políticas públicas para la reducción de la criminalidad en Medellín: una aproximación con dinámica de sistemas  

Microsoft Academic Search

Medellín ha sido una de las ciudades más violentas del mundo, pero la criminalidad ha venido reduciéndose en los últimos años. La continuidad del sendero descendiente depende de la efectividad de las políticas públicas. Esta investigación evalúa políticas públicas, tanto preventivas como punitivas, usando un modelo en dinámica de sistemas que considera la carrera criminal y la teoría económica del

Santiago Arango; John Jairo Prado; Isaac Dyner

2009-01-01

78

APUNTES PARA INTRODUCIR EL SISTEMA DE ANÁLISIS DEL DÉFICIT DE CAPACIDAD INSTITUCIONAL EN LA GESTIÓN AMBIENTAL LOCAL  

Microsoft Academic Search

Las tendencias mundiales de afianzamiento de los sistemas democráticos, descentralización política y búsqueda de alternativas de desarrollo sustentable apuntan a los gobiernos locales como actores imprescindibles ¿Están en condiciones de subir a escena? La mayoría de los diagnósticos ambientales, se hacen a partir parámetros o indicadores de deterioro (efectos e impactos), aunque rara vez incluyen una evaluación de la gestión

Alberto E. Morán

2007-01-01

79

SISTEMA DE TRANSMISIÓN-RECEPCIÓN DESDE UN ROBOT AUTÓNOMO E INTELIGENTE HACIA ACCIONAMIENTOS A TRAVÉS DE LA RED ELÉCTRICA  

Microsoft Academic Search

En este artículo se describe un sistema de transmisión de información a través de la red eléctrica de un edificio, con objeto de utilizar este canal como medio de transmisión de información entre un robot y un accionamiento. Con idea de automatizar un edificio sin necesidad de implantar un bus dedicado para ello, se ha optado por esta opción debido

Ignacio Bravo; Fernando Méndez; Esteban Basagoitia; Luis Miguel Bergasa

80

From the model of El Sistema in Venezuela to current applications: learning and integration through collective music education.  

PubMed

Over the last years, El Sistema--the Venezuelan project started in 1975 and now acknowledged worldwide as the most significant example of collective music education--has inspired a profusion of remarkable initiatives on all continents. From the original impulse by founder José Antonio Abreu, strong social principles of integration are combined with specific musical approaches to achieve individual empowerment as a large-scale alternative to endemic juvenile crime, counteracting the risk factors of social unease, serving as a stimulating example toward emancipation, and providing professional opportunities to the talented. Such a network, in turn, proves to be a powerful instrument of cultural progress: the tenets of "Sistema" become shared values able to foster development, reaching into issues of disability and rehabilitation. This paper presents continuities and contrasts in various ramifications of such a successful trend and outlines perspectives for further impact of this powerful transformational agent. PMID:22524340

Majno, Maria

2012-04-01

81

Diseño, análisis y manufactura de un sistema de fijación interna para tratamiento de fracturas en el primer metacarpiano  

Microsoft Academic Search

En la Universidad Central de Venezuela se está desarrollando un sistema intramedular bloqueado para\\u000atratamiento de fracturas diafisiarias en los huesos metacarpianos como una nueva alternativa para este tipo\\u000ade lesiones. El dispositivo es poco invasivo y permite movilidad temprana de la mano al paciente postoperado\\u000aacortando el tiempo de recuperación. En este trabajo se presentan los diferentes procesos que

Gabriela Contreras; Miguel Cerrolaza; Manuel Martínez; Nils Götzen

1970-01-01

82

La distribución de objetos en el Cinturón de Kuiper y la posible existencia de un nuevo planeta en el Sistema Solar  

NASA Astrophysics Data System (ADS)

A pesar de que la capacidad observacional no lo limita, no se han descubierto objetos en el Cinturón de Kuiper más allá de las 50 AU. Recientemente, hemos propuesto que un embrión planetario originalmente formado en la región de Urano-Neptuno, y posteriormente migrado hacia distancias mayores a 50-60 AU, puede explicar este hecho. Presentamos simulaciones numéricas de acreción del Sistema Solar exterior que muestran cómo, naturalmente, podriamos esperar que un planeta de este tipo se encuentre actualmente en regiones distantes del sistema solar. Analizamos además la posibilidad de detectarlo con instrumentos actuales.

Brunini, A.

83

Las municipalidades en Costa Rica: Evaluación del sistema tributario y la administración presupuestaria y financiera de los gobiernos locales: Alternativas para su fortalecimiento  

Microsoft Academic Search

Este documento analiza el sistema tributario y la administración presupuestaria y financiera de los gobiernos locales en Costa Rica. El trabajo presenta, asimismo, una serie de recomendaciones de políticas y medidas administrativas en el marco de la política de fortalecimiento del régimen municipal a los fines de mejorar la gestión administrativa y tributaria de las municipalidades. Éstas pueden servir de

Marcos Morales

2010-01-01

84

Auditoría al sistema de gestión ambiental de una cementera para determinar los porcentajes de adecuación a la norma venezolana covenin - iso 14001:2005  

Microsoft Academic Search

El presente trabajo consiste en la combinación de técnicas de evaluación propias de estudios ambientales con procedimientos de auditoría tradicionales, con el objetivo de auditar el Sistema de Gestión Ambiental (SGA) de una empresa cementera venezolana llamada Cementos Carora C. A. siguiendo los lineamientos de la norma venezolana COVENIN ISO 14001:2005 para determinar los porcentajes de adecuación a la norma.

Alexis Colmenárez; Anoushka Colménarez

2008-01-01

85

Aplicación del método de valoración contingente en la evaluación del sistema de gestión de residuos sólidos domiciliarios en la ciudad de Salta, Argentina  

Microsoft Academic Search

La higiene urbana, para una población de 489.098 habitantes, comprenden los siguientes servicios: barrido y limpieza; recolección y transporte; limpiezas de imbornales, canales y espacios verdes; y disposición final de residuos. El presente trabajo aplica el método de valoración contingente referéndum (MVCR) para evaluar el sistema de gestión de los residuos sólidos domiciliarios (SGRSD). La evaluación se realizó mediante encuestas

A. A. Agüero; M. Carral; J. J. Sauad; L. L. Yazlle

2005-01-01

86

Aplicación del método de valoración contingente en la evaluación del sistema de gestión de residuos sólidos domiciliarios en la ciudad de Salta, argentina  

Microsoft Academic Search

La higiene urbana, para una población de 489.098 habitantes, comprenden los siguientes servicios: barrido y limpieza; recolección y transporte; limpiezas de imbornales, canales y espacios verdes; y disposición final de residuos. El presente trabajo aplica el método de valoración contingente referéndum (MVCR) para evaluar el sistema de gestión de los residuos sólidos domiciliarios (SGRSD). La evaluación se realizó mediante encuestas

A. A. Agüero; M. Carral; J. J. Sauad; L. L. Yazlle

2006-01-01

87

[Considerations on the Sistema Único de Saúde in the twenty-first century: an interview with Lígia Bahia].  

PubMed

This interview with Lígia Bahia explores evaluations of the first 25 years of Brazil's Sistema Único de Saúde (SUS) and analyzes the project's progress, impasses, and missteps. Bahia is critical of both tendencies currently found within SUS: the one that sees the system as aimed at equity and the other posing equality as its goal. She criticizes the ambivalence that various spheres of government have displayed in their decisions regarding large corporate groups and private health insurance plans, which conflict with the ideas of SUS. She evaluates the participation of doctors and other healthcare professionals in the system. Lastly, she analyzes the emergence of identity politics, which are missing from the public health reform project, whose emphasis was on equality. PMID:24789487

Bahia, Lígia; Cueto, Marcos; Benchimol, Jaime; Teixeira, Luiz Antonio; Cerqueira, Roberta C

2014-01-01

88

NextLib: un sistema de programari basat en ontologies per a la consulta automàtica d'OPAC des de llocs web especialitzats  

Microsoft Academic Search

Els complements per a navegadors web (add-on) n'estan ampliant les funcionalitats. Entre aquests complements, es pot destacar l'aparició recent del LibX, una eina que permet la interacció entre l'OPAC d'una biblioteca i el web. En aquest article, s'estudien les limitacions d'aquesta eina, quant a la detecció automàtica de dades i l'automatització de tasques, amb l'objectiu de proposar un sistema (NextLib)

Lledó Felip Vidal; Enrique Orduña Malea

2008-01-01

89

Temporal dynamics of Trichodesmium erythraeum (Cyanophyta) in the National Park "Sistema Arrecifal Veracruzano" in the Gulf of Mexico.  

PubMed

Trichodesmium erythraeum Ehrenberg ex Gomont is a microalga worldwide distributed in tropical seas. This filamentous microalga was detected in phytoplankton samples collected in the Protected NaturalArea "Parque Nacional SistemaArrecifal Veracruzano", and because of its ecological importance, its temporal dynamics was studied using net samples (30 microm) collected in one year period. Samples were studied with a light microscope recording the presence, morphological characteristics, life form and relative abundance. Trichodesmium erythraeum occurred as single filaments and was rare in April 2007 and March 2008; as single filaments from May to August and December 2007; as single filaments and small aggregates in September 2007 and January 2008; in aggregates of large size (> 3mm) and high relative abundance in October 2007; and was absence in November 2007 and April 2008. Although the relative abundance of the species was not important comparing with other members of phytoplankton, its occurrence was frequent with a bloom at the beginning of the north winds period. The observed temporal dynamics of this microalga in this coral reef region comes up on the alert in the monitoring red tides programs being implemented in Veracruz coast. PMID:22315818

Aké-Castillo, José A

2011-07-01

90

Traitement endoscopique de la lithiase de la voie biliaire principale: résultats et indications  

Microsoft Academic Search

Conclusion  La place du traitement endoscopique de la lithiase de la voie biliaire est conditionnée par la présence de la vésicule biliaire,\\u000a de son infection, du degré d'opérabilité du patient et de la certitude sur la présense d’un calcul cholédocien. Chez les sujets\\u000a fragiles, la SE semble indiquée avant une éventuelle cholécystectomie. Lorsque le risque opératiore est faible, la coeliochirurgie\\u000a est

D. Sautereau

1999-01-01

91

Avaliação do índice de temperatura de globo negro e umidade e desempenho de suínos nas fases de crescimento e terminação criados em sistemas em camas sobrepostas em condições de verão  

Microsoft Academic Search

RESUMO - Um estudo foi realizado com o objetivo de avaliar o sistema de criação em camas sobrepostas de maravalha e de casca de arroz, em comparação ao piso tradicional de concreto e sua influência no desempenho dos animais com base no ITGU (Índice de Temperatura de Globo negro e Umidade), no ganho de peso, no consumo de ração, na

Ilda de Fátima Ferreira Tinôco; Cecília de Fátima Souza; Paulo Armando Victoria de Oliveira; Robson Mendes de Paulo; Josiane Aparecida Campos; Cinara da Cunha Siqueira Carvalho; Marcelo Bastos Cordeiro

2007-01-01

92

Dinámica del sistema agroforestal de chagras como eje de la producción indígena en el Trapecio Amazónico (Colombia) Chagras' agroforestal system dynamics as the basis for indigenous production in the Amazonian Trapezium (Colombia)  

Microsoft Academic Search

Resumen: La tradición indígena, la pertenencia a la cuenca Amazónica y la cercanía a un importante centro urbano como Leticia (Amazonas, Colombia) son factores que aportan elementos característicos al sistema de producción de Ciudad Jitoma y lo dife- rencian de otras formas de producción indígena y no-indígena, incluso dentro de la misma región ama- zónica. En el presente estudio se

Luz Amparo Triana-Moreno; Nohra Cecilia Rodríguez; Jesús García

93

El almacenamiento de energía eléctrica\\/Storage of Electrical Energy  

Microsoft Academic Search

El almacenamiento de electricidad constituye una potente herramienta para la operación del sistema a la hora de maximizar la integración en el sistema eléctrico de la generación procedente de energías renovables. En este artículo se repasan las principales tecnologías de almacenamiento disponibles, sus distintas funcionalidades dentro de la cadena de suministro eléctrico y en especial aquellas relacionadas con la operación

2011-01-01

94

Evaluating the improvements of the BOLAM model of the ISPRA Sistema Idro-Meteo-Mare on the December 2008 flood event in Rome  

NASA Astrophysics Data System (ADS)

The Sistema Idro-Meteo-Mare is an integrated meteo-marine forecasting chain for the Mediterranean basin. The recent update of the meteorological segment, based on the hydrostatic BOlogna Limited Area Model (BOLAM), gives the opportunity for a comparative verification study on a Mediterranean cyclone. The 10-12 December 2008 flood event in Rome has been chosen as case study. This disastrous event was claimed to be an extreme one by mass-media; however, its return time is shown here to be about 5 years. The Mediterranean cyclone responsible for the flood offers a tough case study in order to verify the model's ability in reproducing the evolution of meso-synoptic features in the Mediterranean environment. A qualitative comparison, employing satellite data and derived products, is performed. Results suggest that the upgraded model provides a more realistic representation of the cyclone warm sector - where the main rainfall peak took place - whereas the error in the cyclone trajectory and shape evolution is less affected by the BOLAM improvement.

Casaioli, M.; Lastoria, B.; Mariani, S.; Bussettini, M.

2010-06-01

95

Principales retos de la negociación de un tratado de libre comercio con Estados Unidos : disciplinas en materia de inversión  

Microsoft Academic Search

El Tratado de Libre Comercio de América del Norte (TLCAN) incluyó, por primera ocasión en un tratado de libre comercio (TLC), disciplinas de amplio alcance en materia de inversión, además de un mecanismo a través del cual un inversionista puede demandar a un Estado por violación del nivel de protección previsto en el acuerdo. El tema es una alta prioridad

Jaime Zabludovsky; Sergio Gómez Lora

2005-01-01

96

Traumatologie du ski et du snowboard chez l’enfant et l’adolescent : épidémiologie, physiopathologie, prévention et principales lésions  

Microsoft Academic Search

Skiing and snowboarding are leading to a risk of injuries in children. Beginners and experienced have higher risk of injuries, however, the first have less severe injuries than the latest. Risk factors of injury are: ability and experience, binding adjustment, slope characteristics, speed, collisions with objects or jumping and risky behavior of the young skiers and snowboarders. Lower limb injuries

B. Dohin; R. Kohler

2008-01-01

97

First principales prediction of metastable Niobium and Tantalium nitrides M 4N 5 and M 5N 6 stoichiometry  

Microsoft Academic Search

A first-principles plane-wave pseudopotential method based on the density functional theory is used to investigate the structural, elastic and electronic of M4N5 and M5N6 (M = a transition metal (TM) Nb, Ta). C33 elastic constant for all compounds is found to be much larger than C11, indicating that a-axis is more compressible than c-axis. Interestingly, we find that C33 and

T. Chihi; M. Fatmi; B. Ghebouli

98

Arquitectura de un Sistema Operativo Web Basado en Sistemas Multiagentes  

Microsoft Academic Search

The amount of systems, services and applications developed for the Web has grown considerably. In some cases, the support of the existing operating systems to them, is not the awaited one. Like a solution to this necessity, we propose a model of operating system denominated SOW. It supports and handles a set of services in a heterogenous and dynamic environment

Jose Aguilar; Niriaska Perozo; Edgar Ferrer; Juan Vizcarrondo

2004-01-01

99

EM SISTEMA AGROSSILVIPASTORIL NO CERRADO  

Microsoft Academic Search

This work evaluated the silvicultural and productive behavior of Eucalyptus spp. under four different structural arrangements of agrosilvipastoral system in cerrado of Minas Gerais in five points in time till 67 months of age. The experiment was established in December of 1999 in a cerrado area of Votorantim Metais, in the Northwestern of Minas Gerais (Paracatu, MG, Brazil). Clonal seedlings

Gabriel Corrêa Kruschewsky; Renato Luiz Grisi Macedo; Nelson Venturin; Tadário Kamel de Oliveira

2007-01-01

100

Patologie del sistema nervoso vegetativo  

Microsoft Academic Search

\\u000a I disturbi della sudorazione comprendono l’iperidrosi, caratterizzata da esagerato incremento dell’attività sudoripara, l’ipoidrosi\\u000a e l’anidrosi, nelle quali si verifica una patologica riduzione o assenza della secrezione ghiandolare.

Jessica Mandrioli; Pietro Cortelli

101

Se identifica una relación entre la falta de exámenes de detección y una gran parte de los casos de cáncer de seno en la etapa avanzada  

Cancer.gov

Los autores de un estudio publicado el 20 de octubre de 2004 en la revista Journal of the National Cancer Institute1? declaran que las dos prioridades principales del sistema de salud deben ser aumentar el porcentaje de exámenes de mamografía e invertir en investigaciones que mejoren la tecnología para detectar el cáncer de seno.

102

Evolution a Long Terme des Emplois d'Ingenieur en France. Conclusions Principales d'une Etude Prospective Conduite par le CEFI sous la Direction du CNGE.  

ERIC Educational Resources Information Center

Described is a study that determined the long-term evolution of engineers' needs. Four essential tendencies which can be considered basic postulates for consideration and action are included. Recommendations based on the four postulates are presented. (KR)

Maury, Claude

1990-01-01

103

ESTIMACIÓN DE CURVATURAS Y DIRECCIONES PRINCIPALES EN NUBE DE PUNTOS NO ORGANIZADOS ESTIMATION OF CURVATURES AND PRINCIPALS DIRECTIONS IN UNORGANIZED POINTS CLOUD  

Microsoft Academic Search

The computation of principal curvatures and directions is important in different fields like computer vision, pattern recognition and 3D object reconstruction. Curvatures and directions are properties that must be estimated in discrete form, since the rendering primitives are data points that have neither interconnection nor orientation. This paper present a method to estimate principal curvatures and directions from an unorganized-points

ESMEIDE A LEAL NARVÁEZ; JOHN WILLIAM BRANCH; OSCAR ORTEGA LOBO

2007-01-01

104

A Descriptive Case Study of a School-Wide Positive Behavior Support (PBS) System in Schools with Principal-Led Planning Teams and Coach-Led Planning Teams  

ERIC Educational Resources Information Center

Managing disruptive behaviors in schools is a high-ranking concern in communities across the country (Rose & Gallup, 2006). Unfortunately, the practice of instituting tougher and more severe consequences for increased discipline problems has not resulted in a decrease of disruptive behavior (Lewis & Garrison-Harrell, 1999; Safran & Oswald, 2003;…

McWilliams, Ellen K.

2011-01-01

105

IBEX: La Frontera de Nuestro Sistema Solar  

NSDL National Science Digital Library

This poster outlines the components of the Solar Systemâs heliosphere, with a heliosphere boundary image on the front and introductory information about the parts of the heliosphere boundary on the back. This poster supports a full-length planetarium show about the IBEX mission and the boundary of the Solar System. Each short activity/product helps to build awareness and engagement in the science and engineering aspects of the mission that is reinforced as visitors choose to participate in more activities, including viewing the Show and the mission website. This is a Spanish-language translation of an English-language product (passed review in 2008), titled IBEX: The Edge of Our Solar System.

2008-01-01

106

Sistemas Planetarios en Presencia de Júpiters Calientes  

NASA Astrophysics Data System (ADS)

In the present work we show results of N-body simulations aimed at analyzing the main dynamical aspects concerning the evolution of planetary embryos during the formation and evolution of a Hot Jupiter, for different values of the giant planet mass and the migration timescale. FULL TEXT IN SPANISH

de Elía, G. C.; Guilera, O. M.; Brunini, A.

107

HD 112364: un sistema binario SB2  

NASA Astrophysics Data System (ADS)

In the course of a study of members of the Centaurus OB1 association, observations of HD 112364 ((?, ?)_{J2000} = (12:57:28, -59:47:47)) were obtained with the REOSC cross-dispersed echelle spectrograph. Its spectra shows several absorption lines with double or triple profiles, indicating a double-lined binary system (SB2). The spectral classification criteria of tet{wal90} indicate a spectral type for the primary component of B0.7 Ib. The lines from both components have similar intensities, indicating a double supergiant system. The radial velocities of each star are approximately constant over the 3-night interval covered by the observations, suggesting that HD 112364 is a long-period binary system. That case would be consistent with the lack of emission lines in a non-interacting system, although the H? profile remains to be investigated. FULL TEXT IN SPANISH

Corti, M. A.

108

[The anti-adenovirus activity of larifan in a cell culture].  

PubMed

Larifan, belonging to the number of highly active interferon inducers with a broad antivirus spectrum of action, did not manifest any antivirus effect in vitro in respect to human adenovirus of serotype 2 when it was used to treat the cells before and after the infection. PMID:9785803

Nosach, L N; Diachenko, N S; Zhovnovataia, V L; Butenko, S I

1998-01-01

109

Computer Virus Strategies and Detection Methods  

Microsoft Academic Search

The typical antivirus approach consists of waiting for a number of computers to be infected, detecting the virus, designing a solution, and delivering and deploying the solution, in such situation, it is very difficult to prevent every machine from being compromised by virus. This paper shows that to develop new reliable antivirus software some problems must be solved such as:

Essam Al Daoud; Iqbal H. Jebril; Belal Zaqaibeh

2008-01-01

110

Performance Evaluation of Defense Strategies against Computer Virus  

Microsoft Academic Search

We evaluate performance of anti-virus strategies by using stochastic processes. The typical installations of anti- virus software is either at client PCs or the network gateway. By installing gateway anti-virus, many internet service providers and cooperate LANs are offering the screening service of emails to protect their users from the menace of computer viruses. At the same time, we are

Hiroshi Toyoizumi

111

Exchange Rate Movements and Adjustment in Financial Markets: Quarterly Estimates for Major Currencies (Fluctuations des taux de change et ajustement sur les marchés financiers: estimations trimestrielles pour les principales monnaies) (Fluctuaciones cambiarias y ajuste en los mercados financieros: Estimaciones trimestrales correspondientes a las principales monedas)  

Microsoft Academic Search

The large swings in real exchange rates among the major industrial countries that have characterized the past decade have created substantial uncertainty regarding the sustainable levels of these rates. In these circumstances, departures of market exchange rates from longer-run equilibrium may not generate large enough speculative shifts in financial portfolios to restore equilibrium. This paper develops a model of portfolio

James M. Boughton

1984-01-01

112

Asteroidi  

NASA Astrophysics Data System (ADS)

Contents: Parte I: Asteroidi. 1. Introduzione. 2. Dinamica degli asteroidi. 3. Distribuzione degli asteroidi. 4. Proprietà fisiche degli asteroidi. 5. Interrelazioni nel Sistema Solare. Parte II: Le Osservazioni. 6. La pianificazione. 7. Astrometria. 8. Fotometria. Appendici: A. Tempo delle Effemeridi e Tempo Universale. B. Calcolo Effemeridi. C. Guida all'utilizzo del Minor Planet Software rel. 8. D. Determinazione della Coordinate Geografiche di una postazione di osservazione dalle Coordinate Metriche U.T.M. nella principale cartografia italiana.

Foglia, Sergio; Morbidelli, Alessandro; Masi, Gianluca; Carusi, Andrea

2006-10-01

113

Il museo virtuale dei mosaici  

Microsoft Academic Search

Nell'ambito del progetto internazionale di ricerca GIANO (acronimo di Grafica Innovativa per il patrimonio Artistico Nazionale e per l'Occupazione giovanile), promosso e coordinato dall'ENEA di Bologna, è stato realizzato un sistema informatico prototipale per la gestione e la fruizione di decorazioni musive. Il progetto si è posto, come obiettivo principale, quello di sfruttare le potenzialità insite nelle più progredite tecniche

Giuseppe Maino; Daniele Visparelli

114

48 CFR 352.239-70 - Standard for security configurations.  

Code of Federal Regulations, 2013 CFR

...The Contractor shall configure its computers that contain HHS data with the applicable...index.cfm ) and ensure that its computers have and maintain the latest operating system patch level and anti-virus software level. Note:...

2013-10-01

115

Classification of packed executables for accurate computer virus detection  

Microsoft Academic Search

Executable packing is the most common technique used by computer virus writers to obfuscate malicious code and evade detection by anti-virus software. Universal unpackers have been proposed that can detect and extract encrypted code from packed executables, therefore potentially revealing hidden viruses that can then be detected by traditional signature-based anti-virus software. However, universal unpackers are computationally expensive and scanning

Roberto Perdisci; Andrea Lanzi; Wenke Lee

2008-01-01

116

First-principales calculations on the origins of the gap bowing in Pb1-xCaxS, Pb1-xCaxSe and Pb1-xCaxTe alloys  

NASA Astrophysics Data System (ADS)

The ab initio full potential linearized augmented plane wave (FP-LAPW) method within density functional theory was applied to study the effect of composition on the structural and electronic properties of Pb1-xCaxS, Pb1-xCaxSe and Pb1-xCaxTe ternary alloys. The effect of composition on lattice parameter, bulk modulus, band gap was investigate. Deviations of the lattice constant from Vegard's law and the bulk modulus from linear concentration dependence were observed for all three alloys. In addition, the microscopic origins of compositional disorder were explained by using the approach of Zunger and co-workers. The disorder parameter (gap bowing) was found to be strong for the three alloys and was mainly caused by the chemical charge transfer effect. The volume deformation contributions for all alloys were also found to be significant, while the structural relaxation contributions to the gap bowing parameter were relatively smaller for all alloys.

Sifi, C.; Slimani, M.; Meradji, H.

2012-02-01

117

Alimentation et origine de la salinité de la source sous-marine de Port-Miou (Marseille–Cassis). Principale émergence d'un réseau karstique hérité du Messinien  

Microsoft Academic Search

(Marseille–Cassis–Bouches–du-Rhône). The salinity of the karstic submarine spring of Port-Miou has sometimes been attributed to the leaching of continental evaporites. Our recent chemical and isotopic analyses indicate a simple mixing between fresh karstic water and seawater. In the main gallery, the contamination by seawater, still present up to 2.2 km from the entrance at a depth of 147 m below the sea

Bernard Blavoux; Éric Gilli; Claude Rousset

2004-01-01

118

Conhecendo Sistemas Legados através de Métricas de Software  

Microsoft Academic Search

Outsourcing has become common practice in the software industry. Organizations routinely subcontract the maintenance of their software assets to specialized companies. A great challenge for these companies, is to rapidly evaluate the quality of the systems they will have to maintain so as to define their contracts. This paper presents a framework of metrics to evaluate the complexity of a

Cristiane Soares Ramos; Kathia Marçal de Oliveira; Nicolas Anquetil

119

Contribuição para a popularização dos Sistemas de Informações Geográficas  

Microsoft Academic Search

Geographical information systems are becoming a common information management and analysis tool used in a wide and growing range of application fields. The popularization of GIS techniques request the easy-to-use softwares. From among 12 freeware softwares evaluated, Hypercube (a freeware program produced by the US Army Corps of Engineers Topographic Engineering Center) was considered the most efficient t o perform

Daniel Pereira Guimarães

120

ABATIMIENTO DE LA BIOPELÍCULA EN SISTEMAS DE ENFRIAMIENTO  

Microsoft Academic Search

Biofilm formation was observed on the components of the experimental dynamic system and on admiralty coupons (70Cu-30Ni). The content of bacteria populations in test water was similar to that commonly found (10 6 -10 7 colony forming units per mL) in the cooling water systems of Comisión Federal de Electricidad (CFE). Biofilm and bacteria were treated employing reduced levels of

Susana SILVA MARTÍNEZ; Esteban MARTÍNEZ MEZA; Alberto ÁLVAREZ GALLEGOS

2004-01-01

121

El sistema muscular es el impulsor del desarrollo esquelético  

Microsoft Academic Search

ExtractoEn esta revisión se abordan los conceptos metodológicos de evaluación de la función de la musculatura esquelética y adaptación ósea. Actualmente se considera que la propiedad crítica del hueso no es tanto su peso como su resistencia, y que el control de la resistencia ósea se ejerce principalmente a través del efecto de las cargas mecánicas que inciden sobre el

Eckhard Schoenau

2006-01-01

122

Sistemas superintegrables en espacios homogeneos de SU(p,q)  

NASA Astrophysics Data System (ADS)

In this work we have studied different aspects of a family of superintegrable Hamiltonian systems associated with the pseudo-orthogonal groups S(p,q), p + q = n + 1. These systems were obtained by Marsden-Weinstein reduction from a free hamiltonian, no potential term, with configuration space given by a complex SU(p,q) homogeneous space. After the reduction the resulting SO(p,q) hamiltonian systems are not free: they include a potential term V(s). Among the potentials that appear in this way we can find generalizations of the Posch-Teller and Morse potentials. The above mentioned systems are "maximally" superintegrable, i.e. they have 2n - 1 functionally independent integrals of motion, not all of them in involution, defined in the phase space of an n-dimensional configuration space. The supeintegrability property is related to the separation of variables of the Hamilton-Jacobi equation in more than one coordinate system. Since the original Hamiltonian are associated with a group we have studied the "contracted" system that must be linked with the corresponding group obtained by a Inonu-Wigner contraction. Finally we have studied the one dimensional quantum mechanical version of these hamiltonians by means of the factorization method.

Calzada Delgado, Juan Antonio

123

SOFIA - Sistema de Obtenção de Fotos e Imagens com Aeromodelo  

Microsoft Academic Search

The attainment of photographs and space images through conventional flight and sensors, possess an impracticable cost when it is desired to carry through a thematic analysis of a small isolated area. An alternative for this attainment is flight with one radio-controlled aircraft, equipped with a photographic camera controlled with long- distance radio system. From the construction of an aircraft of

Eduardo Casale Piovesan

124

Postos comunitários: uma alternativa para o sistema de saúde  

Microsoft Academic Search

Reflecting on the current reorganization of the relationship between the state and civ- il society, the health care field is involved in an intense debate over the organization and use of government and private health services. The authors propose an alternative, consisting of the implementation of primary health care clinics, managed by local institutions and funded by the Unified Health

Bairro Barcellos; Travessa Flores

125

Los sistemas y las auditorías de gestión integral  

Microsoft Academic Search

Las auditorías integrales (calidad, ambiental y seguridad, y salud ocupacional) son hoy por hoy una herramienta que se ha consolidado en la gestión empresarial de cualquier organización como un elemento evaluador y de cierre del ciclo planear-hacer-verificar-actuar; que les permite a las empresas medir su desempeño de forma integral y garantizar el cumplimiento legal y de estándares internacionales (ya sea

Clara Inés Pardo Martínez

2008-01-01

126

Implementando Sistemas Orientados a Objetos para Web usando Servlets Java  

Microsoft Academic Search

Object-orientation adds many desirable properties in software development as modularity, reuse and maintainability. However, object-oriented programming languages for Web systems, such as Java, have heavyweight solution for user interfaces. This paper presents a solution to integrate lightweight and efficient user interfaces HTML-based with a core system using the Java Servlets technology as a communication layer. This approach uses an architecture

Sérgio Soares; Marcelo d'Amorim; Denise Neves; Marcelo Faro; Luciana Valadares; Gibeon Soares; Antônio Valença

2000-01-01

127

Diversidad de Sistemas Planetarios en Discos de Baja Masa  

NASA Astrophysics Data System (ADS)

The accretion process that allows the formation of terrestrial planets is strongly dependent on the mass distribution in the system and the presence of gas giant planets. Several studies suggest that planetary systems formed only by terrestrial planets are the most common in the Universe. In this work we study the diversity of planetary systems that could form around solar-type stars in low mass disks in absence of gas giants planets and search wich ones are targets of particular interest. FULL TEXT IN SPANISH

Ronco, M. P.; de Elía, G. C.

128

VV 410, un sistema interactuante del tipo M 51  

NASA Astrophysics Data System (ADS)

We analize spectroscopic and photometric results for VV 410, an interacting system of galaxies of the M 51 type, whose components which have a separation of 78", are connected by a distorted long spiral arm. The main galaxy presents two marked regions (NW and SE regions) at the ends of the bar structure. It has been determined that there is starburst activity in the mentioned regions, being this activity enhanced at the SE region; the stellar formation activity is stronger in the satellite nucleus than in the main galaxy nucleus. Our results suggest that in the NW region would be an older population than the global one, being this older population more prevalent than in the SE region. Oxygen and Nitrogen abundances were derived, and starburst ages were estimated. Heliocentric radial velocities distributions were obtained for both galaxies, along their major axis, and masses were calculated. Photometric B V R I studies show that the NW and SE regions are quite blue, the same that the values found in the regions that belong to the external parts of the disc, near the SE region, while the nucleus of the main galaxy has redder colors (the extinction is high in this zone). The colors of the satellite are also quite blue.

Günthardt, G.; Agüero, E.; Díaz, R. J.

129

Caracterización Óptica Del Sistema Vanadio(III)-Fenantrolina En Solución  

Microsoft Academic Search

In the present work the complexation processes of vanadium(III) with 1,10-phenanthroline have been studied in aqueous solutions by the pH-potentiometric measurements, UV-Visible and fluorescence spectroscopics methods in KCl 3 mol\\/dm -3 and at 25°C. The data obtained by Emf(H) measurements and UV-Visible spectra were analyzed quantitatively in order to determine the chemicals species presents in aqueous solutions and to calculate

Leydi E. Sarmiento; Vito Lubes; Lorenzo Echevarría

130

Estudio de la integración de sistemas de posicionamientos y sistemas telemétricos. Prueba en aplicaciones de alta competición  

Microsoft Academic Search

SUMMARY The summary of this project consists on to determine track of a competition's vehicle by using the Differential Global Positioning System - D.G.P.S - more concretely Real Time Kinematic. When vehicle's track has been determine, we have proceeded to join data from telemetric sensors, which have been located in several places on the vehicle, with our data from positioning

Quintanilla García; Berné Valero; José Luis; Latorre Romero; J. Ignacio

131

Los Pigmentos Vegetales y la Fotosíntesis  

NSDL National Science Digital Library

En esta lección se examinarán las dos principales clases de pigmentos fotosintéticos: las clorofilas y los carotenoides. Se analizarán sus estructuras bioquímicas y su biosíntesis, y se explicará además la organización de estos pigmentos en los sistemas fotosintéticos, que son complejos proteicos que colectan y convierten la energía luminosa en energía química.

132

Incorporando conhecimento intensivo à manutenção centrada na confiabilidade aplicada em ativos de sistemas elétricos usando o sistema inteligente CommonKADS  

Microsoft Academic Search

This paper is a synthesis from thesis of ALKAIM that is about the development of a methodology which has the purpose of matching intensive knowledge with the actions of Reliability Centered Maintenance (RCM) used in electric systems. The matching of this knowledge in actions , permit establishing standardized and reusable bases , for process in reliability centered maintenance . These

João Luiz Alkaim

133

Managing software security risks  

Microsoft Academic Search

Most organizations manage computer security risk reactively by investing in technologies designed to protect against known system vulnerabilities and monitor intrusions as they occur. However, firewalls, cryptography, and antivirus protection address the symptoms, not the root cause, of most security problems. Buying and maintaining a firewall, for example, is ineffective if external users can access remotely exploitable Internet-enabled applications through

G. McGraw

2002-01-01

134

Biologically Inspired Defenses Against Computer Viruses  

Microsoft Academic Search

Today's anti-virus technology, based largely on analysis of existing viruses by human experts, is just barely able to keep pace with the more than three new computer viruses that are writ­ ten daily. In a few years, intelligent agents nav­ igating through highly connected networks are likely to form an extremely fertile medium for a new breed of viruses. At

Jeffrey O. Kephart; Gregory B. Sorkin; William C. Arnold; David M. Chess; Gerald Tesauro; Steve R. White

1995-01-01

135

Wireless security patch management system  

Microsoft Academic Search

Wireless access on college campuses facilitates the spread of computer viruses and worms due to laptops that do not have current software patches and\\/or antivirus protection connecting to the network. Wireless local area networks provide a luxury of mobility to clients so that they may roam about without the restriction of wires, room, and\\/or buildings. At the same time, wireless

Charles Higby; Michael Bailey

2004-01-01

136

Science and Technology Resources on the Internet: Computer Security.  

ERIC Educational Resources Information Center

Discusses issues related to computer security, including confidentiality, integrity, and authentication or availability; and presents a selected list of Web sites that cover the basic issues of computer security under subject headings that include ethics, privacy, kids, antivirus, policies, cryptography, operating system security, and biometrics.…

Kinkus, Jane F.

2002-01-01

137

Extraction of Phenolic Compounds from Fruits of Bitter Melon (Momordica charantia ) with Subcritical Water Extraction and Antioxidant Activities of These  

Microsoft Academic Search

Bitter melon (Momordica charantia) is traditionally known for its medicinal properties such as antidiabetic, anticancer, anti-inflammation, antivirus, and cholesterol lowering effects. It contains many phenolic compounds that may have the potential as antioxidant and antimutagen. Although the value of bitter melon is realized, scientific information on phenolic composition of bitter melon and antioxidant and antimutagenic activities of its extracts from

Extracts Parichat Budrat; Artiwan Shotipruk

138

Bioactive metabolites from marine microorganisms  

Microsoft Academic Search

Diverse arrays of new bioactive secondary metabolites have been isolated from marine microorganisms; and the number of publications in this area has greatly increased in recent years. In this review, the emphasis is placed on new compounds with antitumor, enzyme inhibitors, antivirus, and other bioactive metabolites from fungi, bacteria, actinomycetes, and cyanobacteria reported between 2000 and 2005. Supply is a

Xiaohong Liu; Fang Xu; Changlun Shao; Zhigang She; Yongcheng Lin; Wing Lai Chan

2008-01-01

139

Using API Sequence and Bayes Algorithm to Detect Suspicious Behavior  

Microsoft Academic Search

Computer viruses have become the main threat of the safety and security of industry. Unfortunately, no mature products of anti-virus can protect computers effectively. This paper presents an approach of virus detection which is based on analysis and distilling of representative behavior characteristic and systemic description of the suspicious behaviors indicated by the sequences of APIs which called under Windows.

Cheng Wang; Jianmin Pang; Rongcai Zhao; Xiaoxian Liu

2009-01-01

140

Framework for Zombie Detection Using Neural Networks  

Microsoft Academic Search

One of the most important threats to personal and corporate Internet security is the proliferation of zombie PCs operating as an organized network. Zombie detection is currently performed at the host level and\\/or network level, but these options have some important drawbacks: antivirus, anti-spyware and personal firewalls are ineffective in the detection of hosts that are compromised via new or

Paulo Salvador; Ant ´ onio Nogueira; U. Franca; R. Valadas

2009-01-01

141

Malicious Webpage Detection by Semantics-Aware Reasoning  

Microsoft Academic Search

The evolutional development of dynamic HTML techniques empowers attackers a new and powerful tool to compromise machines. A malicious DHTML code disguises itself as a normal Webpage. The malicious Webpage infects the victim when a user browses it. Furthermore, such DHTML code can disguise easily through obfuscation or transformation, which makes detection even harder. Anti-virus software packages commonly use signature-based

Shih-fen Lin; Yung-tsung Hou; Chia-mei Chen; Bingchiang Jeng; Chi-sung Laih

2008-01-01

142

Malware Detection in Cloud Computing  

Microsoft Academic Search

Detecting malicious software is a complex problem. The vast, ever-increasing ecosystem of malicious software and tools presents a daunting challenge for network operators and IT administrators. Antivirus software is one of the most widely used tools for detecting and stopping malicious and unwanted software. However, the elevating sophistication of modern malicious software means that it is increased challenging for any

Safaa Salam Hatem; Mahmoud M. El-Khouly

2014-01-01

143

Open Problems in Computer Virus Research  

Microsoft Academic Search

Over a decade of work on the computer virus problem has resulted in a number of useful scientific and technological achievements. The study of biological epidemiology has been extended to help us understand when and why computer viruses spread. Techniques have been developed to help us estimate the safety and effectiveness of anti-virus technology before it is deployed. Technology for

Steve R. White

1998-01-01

144

Biological activities and corresponding SARs of andrographolide and its derivatives.  

PubMed

In recent years, pharmaceutical chemists have synthesized large numbers of andrographolide derivatives, which bear important biological activities such as anti-inflammatory, antibacterial, antivirus, antitumor, antidiabetic, and antifeedant. Consequently, corresponding SARs were increasingly obvious. This paper aimed to review all the available literature in this field, highlighting the significant achievements on the structural modification and SARs of andrographolide and its derivatives. PMID:23438057

Zhou, Bin; Zhang, Dayong; Wu, Xiaoming

2013-02-01

145

A Mission-Impact-Based Approach to INFOSEC Alarm Correlation  

Microsoft Academic Search

We describe a mission-impact-based approach to the analysis of security alerts produced by spatially distributed heterogeneous information security (INFOSEC) devices, such as firewalls, intrusion detection systems, authentication services, and antivirus software. The intent of this work is to deliver an automated capa- bility to reduce the time and cost of managing multiple INFOSEC devices through a strategy of topology analysis,

Phillip A. Porras; Martin W. Fong; Alfonso Valdes

2002-01-01

146

Safe Computing: An Overview of Viruses.  

ERIC Educational Resources Information Center

A computer virus is a program that replicates itself, in conjunction with an additional program that can harm a computer system. Common viruses include boot-sector, macro, companion, overwriting, and multipartite. Viruses can be fast, slow, stealthy, and polymorphic. Anti-virus products are described. (MLH)

Wodarz, Nan

2001-01-01

147

An artificial immune system architecture for computer security applications  

Microsoft Academic Search

With increased global interconnectivity, reliance on e-commerce, network services, and Internet communication, computer security has become a necessity. Organizations must protect their systems from intrusion and computer-virus attacks. Such protection must detect anomalous patterns by exploiting known signatures while monitoring normal computer programs and network usage for abnormalities. Current antivirus and net- work intrusion detection (ID) solutions can become overwhelmed

Paul K. Harmer; Paul D. Williams; Gregg H. Gunsch; Gary B. Lamont

2002-01-01

148

Proteochemometric Modeling of the Bioactivity Spectra of HIV1 Protease Inhibitors by Introducing Protein-Ligand Interaction Fingerprint  

Microsoft Academic Search

HIV-1 protease is one of the main therapeutic targets in HIV. However, a major problem in treatment of HIV is the rapid emergence of drug-resistant strains. It should be particularly helpful to clinical therapy of AIDS if one method can be used to predict antivirus capability of compounds for different variants. In our study, proteochemometric (PCM) models were created to

Qi Huang; Haixiao Jin; Qi Liu; Qiong Wu; Hong Kang; Zhiwei Cao; Ruixin Zhu

2012-01-01

149

Recent Advances on Triterpenes from Ganoderma Mushroom  

Microsoft Academic Search

This review addresses the most recent research advances on Ganoderma triterpenes in the past five years, including three major topics of structural characteristics, physiological activities, and production. Thirty-two newly found triterpenes are summarized and more triterpenes, which were found to exhibit anticancer, antivirus, antioxidation, hepatoprotection, and cholesterol synthesis inhibition bioactivities, are reported in this article. Furthermore, new physiological activities including

Yueqin Zhou; Xiaotong Yang; Qingyao Yang

2006-01-01

150

Saving Face — The Facts About Website Vandalism  

Microsoft Academic Search

It is known that developments in the IT world occur rapidly and regularly. Unlike any other industry, routine precautions that needed to be taken a couple of years ago, no longer need to be carried out. Technical developments mean the precautions do not need the same human intervention. Anti-Virus (AV) protection is a prime example. Do you see anyone scour

Iain Franklin

2001-01-01

151

How To: Protect against a Zero-Hour Attack  

ERIC Educational Resources Information Center

In the last year, a series of viruses and worms that caused damage across the Internet in record time has made very clear how vulnerable computer systems are. The MS Blaster, Slammer, Sasser, and Korgo.W worms have shown that signature-based antivirus software and traditional firewalls are not enough to protect networks. Everyone is worried about…

McCarthy, Rob

2005-01-01

152

A Distributed Approach to Computer Virus Detection and Neutralization by Autonomous and Heterogeneous Agents  

Microsoft Academic Search

Recent expansion of the computer network opened a possibility of explosive spread of computer viruses. We propose a distributed approach against computer virus using also the computer network that allows distributed and agent-based approach. Our anti-virus system consists of several heterogeneous agents similarly to the immune system. Among these agents, antibody agents use the information of “self” (files of host

Takeshi Okamoto; Yoshiteru Ishida

1999-01-01

153

Research on the Variation of the Computer Virus Based on Random Function  

Microsoft Academic Search

Studying the variation principle of the computer virus can deeply understand and grasp the variation laws and trends of the computer virus; offer the theoretical foundation for technical research of the anti-virus. In the foundation of summarizing the principle and the development of the virus technology, we introduced the idea of joining the random function in the trigger module of

Xie Hui; Zhang Zhi-gang; Wu Rui; Nie Feng

2009-01-01

154

Virus Alert: Ten Steps to Safe Computing.  

ERIC Educational Resources Information Center

Discusses computer viruses and explains how to detect them; discusses virus protection and the need to update antivirus software; and offers 10 safe computing tips, including scanning floppy disks and commercial software, how to safely download files from the Internet, avoiding pirated software copies, and backing up files. (LRW)

Gunter, Glenda A.

1997-01-01

155

Computer Viruses: Pathology and Detection.  

ERIC Educational Resources Information Center

Explains how computer viruses were originally created, how a computer can become infected by a virus, how viruses operate, symptoms that indicate a computer is infected, how to detect and remove viruses, and how to prevent a reinfection. A sidebar lists eight antivirus resources. (four references) (LRW)

Maxwell, John R.; Lamon, William E.

1992-01-01

156

The Computer Virus Threat and What You Can Do about It.  

ERIC Educational Resources Information Center

Discussion of computer viruses describes two types of viruses and how they work; suggests ways to prevent or minimize virus risk; and explains how to recognize a virus and limit damage once a virus attacks. A sidebar lists several antivirus software products. (two references) (NRP)

Lateulere, John

1992-01-01

157

Help for the Help Desk: School District Technology Managers Learn to Do with Less.  

ERIC Educational Resources Information Center

Although the E-Rate has been a catalyst for school technology purchases, there are no subsidies for hiring qualified technology support staff. District technology coordinators are relying on technology support systems and shoestring survival strategies, employing standardized equipment and hard-drive configurations, desktop lockdowns, anti-virus

Kongshem, Lars

2001-01-01

158

Un gran proyecto en crisis: el estudio coordinado de la norma linguistica culta de las principales ciudades de Iberoamerica y de la peninsula Iberica (A Great Project in Crisis: the Coordinated Study of the Educated Linguistic Norm of the Principal Cities of Latin America and of the Iberian Peninsula)  

ERIC Educational Resources Information Center

The controversy holding back the project is what approach should be used in data collecting, controlled interviews or spontaneous recordings. The author favors the latter. To be scientific, the analysis of the data should be psycholinguistic rather than stylistic. (Text is in Spanish.) (TL)

Criado de Val, Manuel

1975-01-01

159

A Model of Inflation and Its Performance in the Seven Main Industrial Countries, 1958-76 (Un modèle d'inflation et son application dans les sept principaux pays industrialisés, 1958-76) (Modelo de inflación y su comportamiento en los siete países industriales principales, 1958-76)  

Microsoft Academic Search

This paper develops a model of inflation against the background of the recent literature. The model allows for a number of systematic determinants of the inflation process. These determinants include (i) inflationary expectations, (ii) changes in money, as regards their role in expectations, (iii) economic activity, represented alternatively by the level of the output gap and the change in real

1978-01-01

160

Resonancias en la región trans-neptuniana  

NASA Astrophysics Data System (ADS)

La expansión de la órbita del planeta Neptuno en la etapa de acreción del Sistema Solar exterior (Fernández e Ip 1984, 1996) parece ser un mecanismo eficiente para la captura de planetesimales en las resonancias exteriores con Neptuno (Malhotra 1995). Por otro lado, los estudios dinámicos realizados por varios autores indican que las resonancias son regiones de evolución estable, en contraste con el comportamiento caótico del resto de la región trans-neptuniana. Por estas razones, y si bien los datos observacionales son todavía muy limitados, se supone que los objetos descubiertos se encuentran en alguna de esas resonancias. En esta comunicación presentamos un estudio analítico y numérico de las principales resonancias exteriores con Neptuno.

Gallardo, T.; Ferraz-Mello, S.

161

Incentivos para atraer y retener personal de salud de zonas rurales del Per?: un estudio cualitativo  

PubMed Central

El objetivo fue identificar incentivos de atracción y retención en zonas rurales y distantes de Ayacucho, Perú. Fueron realizadas entrevistas en profundidad con 80 médicos, enfermeras, obstetras y técnicos (20 por grupo) de las zonas más pobres y con 11 funcionarios. No existen políticas sistemáticas de atracción y retención de personal de salud en Ayacucho. Los principales incentivos, en orden de importancia, fueron mejoras salariales, oportunidades de formación y capacitación, estabilidad laboral y nombramiento, mejoras en infraestructura y equipos, e incremento del personal. Se mencionaron también mejoras en la vivienda y alimentación, mayor cercanía con la familia y reconocimiento por el sistema de salud. Existen coincidencias y singularidades entre los distintos grupos sobre los incentivos clave para estimular el trabajo rural, que deben considerarse al diseñar políticas públicas. Las iniciativas del Estado deben comprender procesos rigurosos de monitoreo y evaluación, para asegurar que las mismas tengan el impacto deseado.

Huicho, Luis; Canseco, Francisco Diez; Lema, Claudia; Miranda, J. Jaime; Lescano, Andres G.

2014-01-01

162

Caracterização das propriedades espaciais, temporais e físicas de Relâmpagos e Sistemas Convectivos de Mesoescala  

Microsoft Academic Search

The objective of this work is to present the cloud-ground lightning spatial and temporal distribution and the relationship between electrical discharges and the physical properties of the Mesoescale Convective System (MSC) for the determination of potential forecaster parameters of atmosphere electrical activity. This work combined data from GOES geostationary satellite infrared channels with cloud-ground lightning from the ground network supplied

Enrique Vieira Mattos

163

Sobre las edades de las componentes del sistema PSR B1855+09  

NASA Astrophysics Data System (ADS)

In the last few years several low-mass white dwarfs (helium white dwarfs, He WD) have been detected as companions to millisecond pulsars. In this kind of systems, pulsar emission is activated by mass transfer episodes, which also lead to the formation of the He WD, thus if we set the zero age point at the end of this mass loss transfer episodes, the ages of both objects should be the same. In this sense, PSR B1855+09 system casts some doubts about the correctness of theoretical white dwarf models. The age of the pulsar inferred from its spin-down rate is 5 Gyr. However, existing determination of the mass of the white dwarf companion of this system and recent optical detection of it, which has allowed to infer its effective temperature, have led to an estimative age of 10 Gyr for the white dwarf. Noteworthly, available theoretical calculations used to infer the cooling age of the He WDs, neglect element diffusion. In this work, we present evolutionary calculations for He WDs taking into account the effects of gravitational settling, and chemical and thermal diffusion in a self consistent way, and in particular we use the results to determine cooling ages for He WDs. We find that models within the mass range 0.19 <= M/Msolar <= 0.41 suffer from diffusion-induced thermonuclear flashes, during which an appreciable amount of the hydrogen of the envelope is burnt. Only after the hydrogen envelope has been reduced enough so as not to be able to produce another thermonuclear flash, He WD models evolve towards their final cooling track. During this evolutionary stage, cooling rate is determined by whether stable hydrogen burning is relevant or not. We find that diffusion-induced thermonuclear flashes reduce the hydrogen envelope so as to prevent stable hydrogen burning from being an appreciable source of energy for the models, which are then forced to a rapid cooling. In this way, expected ages for these objects are drastically reduced when compared to the case in which diffusion is neglected (as these models predict thick hydrogen envelopes and thus, a cooling stage dominated by stable hydrogen burning). In particular, we find for the white dwarf companion to PSR B1855+09 an age of 4±2 Gyr, which is in very good agreement with the spin-down age of this pulsar and also shows that the age discrepancy previously found is due to an oversimplification in the physical ingredients of theoretical models.

Serenelli, A. M.; Althaus, L. G.; Benvenuto, O. G.

164

Radioprotecao por dimetilsulfoxido em dois sistemas biologicos. (Radioprotection by dimethyl sulfoxide on two biological systems).  

National Technical Information Service (NTIS)

The effects of dimethyl sulfoxide treatment on two biological systems are examined: (a) In vivo, the level of albinic mouse survive from IPEN, when irradiated with 9 Gy of (sup 60)Co., 1 hour after the injection ip of DMSO 0,025M. (b) In vivo, molecular l...

D. M. L. Bernardes A. L. C. Villavicencio N. L. Del Mastro

1990-01-01

165

A Language for Simulating Dynamic Hierarchical Systems Uma Linguagem Para Simulacao de Sistemas Dinamicos Hierarquizados.  

National Technical Information Service (NTIS)

A software package for the simulation of hierarchical systems, written for the B6700 computer is described. The main purpose of the package is to simplify the modeling and subsequent simulation of large systems, by considering each of its parts as a subsy...

H. G. V. S. Borges

1980-01-01

166

NDTRAN: Interpreter of Dynamic Systems O Interpretador de Sistemas Dinamicos: NDTRAN.  

National Technical Information Service (NTIS)

Computer methods for system dynamic simulation are examined with specific emphasis on the dynamic modeling translator (DYNAMO) and the Notre Dame Translator (NDTRAN). Both are specific for simulation of continuous time. The characteristics of the NDTRAN a...

H. G. V. S. Borges

1980-01-01

167

Crecimiento adiabático de un agujero negro en el centro de un sistema estelar  

NASA Astrophysics Data System (ADS)

We present preliminary results on the dynamical influence of an adiabatically grown central black hole upon its surroundings. Young (1980), in his pioneer work, found an r-3/2 density profile for the neighborhood of a black hole, a result not confirmed by observation. In this work, we extend Young's result to a more realistic case, namely an inhomogeneous galactic center, although keeping the spherical symmetry hypothesis, in order to verify whether the final density profile changes.

Arrigoni, M.; Carpintero, D. D.

168

APICE: Sistema de Aquisicao e Processamento de Imagem (APICE: Image Acquisition and Processing System).  

National Technical Information Service (NTIS)

Computer vision is becoming increasingly important in such different areas as visual inspection, robotics, medical diagnosis, surveillance, etc.. Low-level image processing algorithms are the base of any computer vision system and its implementation deter...

L. F. M. da Cruz Ferreira

1988-01-01

169

Manual de Sistema de Programacion y Capacitacion (Peace Corps Programming and Training System Manual).  

National Technical Information Service (NTIS)

The report is the Spanish version of the Peace Corps manual for standards of programming and training. In addition to integrating the various components of the programming process, the content of the new manual is organized in a way which allows for acces...

1989-01-01

170

Aplicação de gesso agrícola e especiação iônica da solução de um Latossolo sob sistema plantio direto  

Microsoft Academic Search

Low Ca content and Al toxicity are important limitations for yield crops in Brazilian acids soils. Gypsum application may increase Ca contents and decrease Al toxicity. However, a better knowledge of the effects of gypsum on the ionic speciation of soil solution is very important. The ionic speciation of the soil solution (water extract 1:1) was evaluated in samples from

Fernando César; Bachiega ZambrosiI; Luís Reynaldo; Eduardo Fávero

171

Deposição de filmes de ZEI 8% em mol por sistema de spray pirólise modificado  

Microsoft Academic Search

In this work zirconia stabilized with itria films 8 mol% (8YSZ) had been produced, applied as electrolytes for solid oxide fuel cell (SOFC), deposited in quartz substrate spray-pyrolysis technique and treated at 1000ºC. For attainment of films a system deposition for spray-pyrolysis modified according to patent deposited in INPI was used, that if compared with traditional system where atomized is

C. H. M. Rodrigues; M. Toniato; H. R. Paes Jr

2008-01-01

172

Dyes and biomimetic systems: detergency and food industry Colorantes y sistemas biomiméticos: detergencia e industria alimentaria  

Microsoft Academic Search

Dyes are widely used as additives in the food industry. As some dyes may pose health risks when being in contact with food, their removal in industrial processes is an important issue. Since the surfactant sodium dodecyl sulphate (SDS) covers a wide range of variety of task to remove oily materials, and it is often used in detergency processes, the

G. Astray; A. Cid; J. A. Manso; O. Moldes; J. Morales; J. Quintás

2011-01-01

173

Impul'snaya sistema linejnogo induktsionnogo uskoritelya. (Pulse system of linear induction accelerator).  

National Technical Information Service (NTIS)

The detailed description of two modifications of powerful pulse generators (modulators) - the acceleration voltage sources for linear induction accelerator (LIA) is given. The modulators are designed with application of nonlinear circuits of power amplifi...

A. I. Sidorov V. I. Kazacha A. K. Krasnykh V. P. Sarantsev

1989-01-01

174

Análisis de Sistemas de Altavoces para Sub-Bajos Pasa Banda  

Microsoft Academic Search

This article shows an analysis of band pass bass reflex loudspeakers systems obtaining their analog electric circuit and using the electric circuits rules to find the frecuency and impedance responses, so to predict their performance. This systems are built with one or two small transducers in an enclosure divided in two or three chambers conected for ports. The enclosure has

Ricardo Saldías; Sergio Matamala; Justo Concha

175

Mecanismos de abertura do sulco e adubação nitrogenada no cultivo do feijoeiro em sistema plantio direto  

Microsoft Academic Search

FURROWS OPENING MECHANISM FOR NITROGEN FERTILIZER APPLICATION IN COMMON BEAN CROP UNDER NO-TILLAGE Some crops have shown no adaptation to no-tillage system as a function of compaction soil superficial layer. In way, the mechanism used in seeder to open furrows for deposition of fertilizer can have great importance to facilitate the penetration of roots. This experiment was carried in Selvíria

Orivaldo Arf; Renato José Afonso; Airton Romanini Junior; Matheus Gustavo da Silva; Salatier Buzetti

2008-01-01

176

FORMACIÓN Y MERCADO DE TRABAJO EN GALICIA: UN BALANCE ANTE LA REFORMA DEL SISTEMA EDUCATIVO  

Microsoft Academic Search

En los últimos años se ha producido un fuerte proceso de transferencia de competencias educativas y formativas desde la Administración General de Estado a las CCAA, que tuvo su principal exponente en 1993 en Galicia, con la cesión de la gestión de la formación profesional ocupacional. Esta situación se ha acelerado con el traspaso a Galicia de la mayor parte

Alberto Vaquero

177

Reflexiones del Metodo de Investigacion, Consultoria e Innovacion en Sistemas de Gestion de Empresas Agropecuarias  

Microsoft Academic Search

The evolution of the subject of Research on Technology Transfer and Agroindustrial Development at the Facultad de Estudios Superiores Cuautitlán UNAM (School of Advanced Studies at Cuatitlan UNAM) converges with the generation of agricultural business management systems and with the consultancy service and training, as a University-Company articulation strategy; with the purpose of awakening business people's interests in order to

Jose Luis Ruiz Guzman; Alfredo Aguilar Valdes; Gerardo Gomez Gonzalez; Javier Ruiz Ledezma

2009-01-01

178

Sistemas Eolicos Pequenos Para Generacion De Electricidad; Una Guia Para Consumidores En Los EE.UU.  

National Technical Information Service (NTIS)

This Spanish version of the popular Small Wind Electric Systems: A U.S. Consumer's Guide provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or...

2007-01-01

179

Hacia un envejecimiento responsable: Las reformas de los sistemas pensionales América Latina  

Microsoft Academic Search

Durante buena parte de la era previa a la globalización, desde la década de 1860 hasta la I Guerra Mundial, Estados Unidos mantuvo aranceles sorprendentemente elevados. Los historiadores que se ocupan del tema económico actual han sugerido que el proteccionismo de EE. UU. fue producto de una `reacción violenta` contra la globalización que fue el comienzo de su fin. También

Stephen Meardon

2006-01-01

180

Sintesis y caracterizacion de portadores magneticos coloidales. Aplicaciones al diseno de sistemas de liberacion de farmacos  

NASA Astrophysics Data System (ADS)

The present work is mainly dedicated to the synthesis and characterization of composite colloidal particles with a magnetic core (magnetite) and a polymeric biodegradable material shell (poly(DL-lactide), PLA). The aim is to use them as drug carrier systems in the field of controlled (or modified) release. The appropriate synthesis conditions are analyzed for such purpose, starting with the synthesis of the magnetic nuclei, and continuing with that of microspheres of the polymer used later as shell material. The final step is the manufacture of the composite colloids. In order to have a good comparison, all the experiments of the work have been run in triplicate, that is, for the three individual materials (magnetic nuclei, PLA and composite particles magnetite/PLA) and all the discussions are presented by way of parallel study of the three colloidal systems. The following surface and bulk properties have been studied: shape and size of the particles, specific surface area, chemical composition. The magnetic behavior of the nuclei is characterized, as well as that of the composite particles, through measurement of the magnetic susceptibility and the hysteresis cycles. In addition, a study of the electrokinetic behavior of the systems as a function of pH---at constant ionic strength---has been complemented by an investigation of their surface thermodynamics to check the extent of coverage achieved. Very significant results were also obtained in the analysis of the stability of the suspensions. Since our final aim was the design of a drug carrier and controlled release system, we also present a series of preliminary results concerning the effect of the glucocorticoid betamethasone 21-phosphate sodium salt on the surface electrical properties of the three kinds of particles, observing clear differences between the behavior of magnetite particles and of composite or pure polymeric colloids. It is demonstrated that the polymer layer affects considerably the capacity of the colloid for adsorbing this drug and, probably, other drugs of interest in the treatment of those pathologies in which one needs an elevated local concentration of any therapeutic product but without adverse side effects, like those used in the chemotherapy of the solid tumors.

Gomez Lopera, Salvador Angel

2003-10-01

181

Sobre a quantizacao de um sistema classicamente caotico. (Quantization of classically chaotic system).  

National Technical Information Service (NTIS)

Some propeties of a quantization in terms of observables of a classically chaotic system, which exhibits a strange are studied. It is shown in particular that convenient expected values of some observables have the correct classical limit and that in thes...

N. F. Godoy

1988-01-01

182

Survey of Financial Systems of the Americas = Encuesta de Sistemas Financieros  

NSDL National Science Digital Library

The Inter-American Development Bank (IADB) has carried out the Survey of Financial Systems to provide "decision makers with information regarding the structure and level of development of the national financial systems of the Western Hemisphere." The Survey strives to provide information about the region's "financial institutions, instruments, law and regulatory oversight." The questions for the survey and information about how the survey is carried out can be found at the site. The data for the Survey is also available for download as an SPSS 7.5 data file.

1997-01-01

183

Visualizacao de Imagens Multiespectrais em Sistemas Graficos (Visualization of Multispectral Images in Graphic Systems).  

National Technical Information Service (NTIS)

Many raster graphics systems, mainly used in computer aided design, have display devices with architectures not suited to show multispectral imagery obtained from satellites. One of the factors that affect data visualization is the number of simultaneous ...

L. Santannabins R. C. Modestodesouza G. J. Erthal

1988-01-01

184

Descubrimiento de un nuevo sistema binario en el cúmulo abierto Trumpler 16  

Microsoft Academic Search

We present preliminary results of a new double lined binary system, number 34 in Trumpler 16. The observations have been carried out with the REOSC Cassegrain echelle spectrograph attached to the 2.15 m telescope at Complejo Astronómico El Leoncito, San Juan, Argentina, with a Tek 1024x1024 CCD as detector. This intrumental configuration gives a resolution close to 14000 in the

F. Albacete; N. Morrell; V. Niemela

1998-01-01

185

Sistema di Sorveglianza OKkio alla SALUTE: Risultati 2010. (Surveillance System of OKkio alla Salute: Results 2010.)  

National Technical Information Service (NTIS)

In 2007 the Italian Ministry of Health promoted OKkio alla SALUTE, national nutritional surveillance system based on biannual cross-sectional surveys and coordinated by the National Institute of Health. It aims to estimate the prevalence of overweight and...

A. Lamberti A. Spinelli D. Galeone P. Nardone S. Andreozzi

2012-01-01

186

Experimento Virtual de Controle: Uso de Técnicas de Realidade Virtual para a Construção de um Sistema \\  

Microsoft Academic Search

The main purpose of this paper is the development of a virtual experiment to be used as a teaching tool for control disciplines. A linearized mathematical model of the system in the state-space form is used to project a controller using pole location. The three-dimensional ambient which represents the Ball-Beam dynamic system was built using the API Java 3D. The

Éder Torres Patrício; Max Rothe-Neves; Orlando Fonseca Silva

187

Plática con el embajador mexicano Edgardo Flores Rivas: El sistema educativo de México antes y después  

Microsoft Academic Search

Ambassador Edgardo Flores Rivas examines the state of the current Mexican educational system and explains why it has produced a “poverty factory.” He asserts that in the past, the Secretariat of Public Education had such strong political power that its leaders were more concerned about their political agendas than about the country's education. The new government has started to reform

María Guadalupe De La Colina

2010-01-01

188

TRANSFORMACIONES DE FÓSFORO EN UN MOLISOL BAJO SISTEMAS DE LABRANZA CONTRASTANTES  

Microsoft Academic Search

Conservation tillage may affect soil phosphorus (P) fractions through the application of P fertilizer and the deposition of residue on the soil surface. The objectives were to 1) evaluate the effect of tillage systems on soil P fractions, as well as the interaction with P fertilization, and 2) relate changes in P fractions with P balance. No tillage and conventional

LILIANA PICONE; IGNACIO CAPOZZI; ESTER ZAMUNER; HERNÁN ECHEVERRÍA; HERNÁN SAINZ ROZAS

189

10. GESTIÓN SOCIOAMBIENTAL EN GRANDES PROYECTOS DE INFRAESTRUCTURA UTILIZANDO DINÁMICA DE SISTEMAS  

Microsoft Academic Search

This work presents a theoretical and methodological approach to system dynamics utilization to contribute in the comprehension and handle of complexity of management challenges what appears in design, construction and operation pha ses in concentrate infrastructure p rojects like a s ports, big dams and industrial parks. The localization of this k ind of projects generate socio en vironmental impacts

Mauricio Díaz Espinosa; Gloria Elena; Peña Zapata

190

Grupo de Pesquisa: Estrutura, Evolução e Dinâmica dos Sistemas Agroalimentares e Cadeias Agroindustriais  

Microsoft Academic Search

The article analyzes as the loss of competitiveness of the productive chain of the milk, that left of being as producing the national one to be with the fifth place, in the period between 1998 and 2001, positively influenced the dynamics of the Sectorial Chamber and Milk and Derivatives of the State of São Paulo, lea ding its members to

Apresentação Oral-Estrutura; Cadeias Agroindustriais; ROSANA DE OLIVEIRA PITHAN E SILVA; NELSON PEDRO STA

191

Mujeres en ascenso: dinámica del sistema educativo y del mercado laboral en Colombia, 1900-2000  

Microsoft Academic Search

El objetivo principal de la presente investigación es describir y analizar los cambios en la transmisión de conocimiento en los establecimientos educativos femeninos de Bogotá y la participación de la mujer dentro del mercado laboral bogotano. Con base en los resultados que arrojó la Encuesta de empleo de 1963-1970 para Bogotá y la Encuesta Integrada de hogares 2006, se elaboró

María del Pilar López-Uribe; Diana Quintero Castellanos; Loly Aylú Gaitán Guerrero

2011-01-01

192

Contribución a la teoría de Chandrasekhar sobre la dinámica de los sistemas estelares  

Microsoft Academic Search

Within Chandrasekhar's theory on the dynamics of stellar systems, the shape of regular extragalactic nebulae is explained. Starting from the mentioned author's differential equations several important theorems are proved, which allow to attack the problem from a new point of view. Al first approximation, it is supposed that a regular extragalactic nebula is a stellar system the velocity field of

Juan J. de Orús

2007-01-01

193

Controle de seguranca dinamica em sistemas de energia eletrica. (Dynamic preventive control in electric power systems).  

National Technical Information Service (NTIS)

This work presents a methodology for Preventive Control in Electric Power Systems, considering the transient stability and three-phases fault. The transient stability assessment is performed by the PEBS (Power Energy Boundary Surface) method, because this...

C. R. Minussi

1990-01-01

194

Gestão Estratégica de Recursos Humanos a Partir da Dinâmica de Sistemas  

Microsoft Academic Search

Questions about the effectiveness of the human resources area in regards to the value it adds to the organizational results remain due to the difficulty of its assessment. Therefore, the problem of interest of this study is settled in the search of a better instrument to verify the impact of human resources in the results of the organization by applying

ANGELI KISHORE; TATIANA PROENÇA URBAN; MARCIA MARIA SILVEIRA; CAMPOS MOREIRA; ROBERTO CODA

195

Dinámicas de Sistemas de Género en Chiloé Central, o la cuadratura de los Ciclos  

Microsoft Academic Search

This document is the result of the Rural Territorial Dynamics Program, implemented by Rimisp in several Latin American countries in collaboration with numerous partners. The program has been supported by the International Development Research Center (IDRC, Canada). We authorize the non-for-profit partial or full reproduction and dissemination of this document, subject to the source being properly acknowledged.

J. C. y Bornschlegl T. Macé

2010-01-01

196

Grupo de Pesquisa: ESTRUTURA, EVOLUÇÃO E DINÂMICA DOS SISTEMAS AGROALIMENTARES E CADEIAS AGROINDUSTRIAIS  

Microsoft Academic Search

THE PRESENT WORK OBJECTIVES TO ANALYZE THE COMPETIT IVELY OF WOOD EUCALYPTUS PRODUCTIVE CHAIN IN BRAZIL, COMPARI NG DIFFERENT PRODUCTION SYSTEMS, THROUGH POLICY ANALYS IS MATRIX (PAM). BASED ON RESULTS OBTAINED, IT WAS CONCLUDED THAT THE PRIVATE AND SOCIAL PROFITABILITY OF THE PRODUCTION AND COMMERCIALIZATION OF EUCALYPTUS WOOD WAS POSITIVE A ND LARGER IN FLAT AREAS; BRAZILIAN PRODUCERS WERE PENALIZED

Apresentação Oral-Estrutura; NAISY SILVA SOARES; MÁRCIO LOPES DA SILVA; JOSÉ LUIZ PEREIRA DE REZENDE; MARÍLIA FERNANDES; MACIEL GOMES

197

MODELAMIENTO INICIAL DE CIUDADES DE PAISES EN VIA DE DESARROLLO, UTILIZANDO DINÁMICA DE SISTEMAS  

Microsoft Academic Search

The purpose of this study is to identify the real benefits offered by simulation and modelation techniques (Cellular Automata and System Dynamics), in the improvement of developing government's planning and decision making regarding their cities' expansion. To this effect the specific case of Pamplona city (Colombia) is analyzed, a city which has experienced important growth in its population due to

LEONARDO JOSÉ RUEDA; DEWAR WILLMER RICO

2007-01-01

198

DINÂMICA DE SISTEMAS E BUSINESS DYNAMICS: TRATANDO A COMPLEXIDADE NO AMBIENTE DE NEGÓCIOS  

Microsoft Academic Search

This article intends to explore one possible and growing approach of the System Dynamics. Considering the comprehensive range of possibilities of scientific application of the SD, we focus our discussion on its application in the management science context. This approach has been recently referred to as Business Dynamics, due to its concerning the application of SD in the business environment

Amarildo da Cruz Fernandes

199

Surgimiento de irreversibilidad dinámica en sistemas cuánticos de muchos cuerpos: Una prueba usando resonancia magnética nuclear  

Microsoft Academic Search

La técnica de resonancia magnética nuclear permite crear una polarización local de no-equilibrio y posteriormente detectar su evolución. También es posible invenir el signo del hamihoniano dipolar efectivo y así revertir una dinámica aparentememe difusiva. generando un eco de polarización. Las mediciones en policrislales de (C~Hs)Mn(COh y de (CsHshFe mostraron ecos que se atenúan como función del tiempo tR transcurrido

Horacio M. Paslawski; Gonzalo Usaj; Rodrigo A. Iglesias

200

Modelación y simulación computacional de un proceso productivo de una pequeña empresa usando dinámica de sistemas  

Microsoft Academic Search

This article aims to motivate the academic sector as well as the small and medium sized firms to develop, in the field of dynamic system simulation, cooperative works which will lead to a clearer and more reliable enterprise management, and also contribute to the training of professionals who are best suited to satisfy the needs existing in today's society. To

Carlos Mario; Parra Mesa; Jorge Iván; Pérez Rave; Diego Torres Franco

2006-01-01

201

Aplicando a Modelagem Computacional e a Dinâmica de Sistemas na Aprendizagem Exploratória em Física  

Microsoft Academic Search

The objective of the present work is to give continuity to the researches conducted in the area of computacional modeling and teaching of sciences using the semiquantitative computer modeling environment called JLinkIt in exploratory learning of Physics, in activities related to the contents of the curriculum of the discipline directed to 11th grade students. The use of this tool in

Cristiane Barbosa; Pinheiro de Oliveira; Fábio Ferrentini Sampaio

202

UNIDADES FRANQUICIADAS VERSUS PROPIAS EN EL SISTEMA DE FRANQUICIA: UNA INVESTIGACIÓN EMPÍRICA  

Microsoft Academic Search

Franchising system continues its unstoppable advance worldwide, as in the most commercially developed countries as in those that have some more antiquated commercial structures. For that reason, nowadays, this is an important research topic in the business area. Franchising chains expand themselves through own and franchised units, in this context, this work intends to determine what kinds of units are

Díez de Castro; E. C. Navarro García

2008-01-01

203

Sistema de suporte à decisão para recomendação de uso e manejo da terra  

Microsoft Academic Search

The objective of this work was to develop a decision support system to recommend land use and practices for soil conserva- tion and management, which integrates an Expert System, Geographic Information System (GIS), a database and an interface to monitor input and output data and the messages passed between the subsystems. Using soil and slope maps, the developed system determines

Monica L. Giboshi; Luiz H. A. Rodrigues; Francisco Lombardi Neto

2006-01-01

204

Analisi economica e pianificazione della logistica terrestre containerizzata del sistema portuale ed interportuale campano  

Microsoft Academic Search

The paper presents the main results of a research aimed to theoretically define and numerically apply an optimization model for the economic analysis and strategic planning of the inland logistics of maritime containers imported through the seaports of Naples and Salerno located in the Campania region (Southern Italy). The containers can transit through the regional interports at Nola and Marcianise,

Fedele Iannone

2009-01-01

205

Papel del sistema nervioso autónomo en la fisiopatología de la migraña  

Microsoft Academic Search

SUMMARY Migraine is part of the primary headaches group. The overall migraine prevalence is 8-25% with a male: female ratio 1:3. This is a very incapacitating disease and represents an annual cost of 13 billions dollars in the United States. Knowledge about its pathophysiological mechanisms is still in controversy. An alteration in the Autonomic Nervous System has been proposed as

Juan G. Zarruk; Sandra Y. Silva; Ronald G. García; Carlos A. Morillo; Federico A. Silva

2005-01-01

206

Coexistencia e integracion de comunicaciones inalambricas en sistemas de transmision opticos  

NASA Astrophysics Data System (ADS)

Current network and telecommunication systems are required to provide higher data rates in access networks to an increasing number of users. This fact is mainly due to the increase in the Internet traffic data, which is related with the higher demand of online videogames and software, the increased complexity in the content of web pages, the joint distribution of audio-visual and added-value online content, and the introduction of high-definition services and contents such as video on demand, as a result of a society increasingly more interconnected. In order to satisfy these higher data rates requirements, new techniques for the joint distribution of several wireless communication systems are proposed in this Thesis. The aim of these techniques is to facilitate the deployment of an integrated access network at the customer premises, enabling the integration of optical transmission over an optical access network and radio-frequency transmission in the same infrastructure. Two main wireless communication systems are considered in this Thesis, WiMAX (Worldwide Interoperability for Microwave Access) and UWB (Ultra-Wide Band) according to WiMedia Alliance recommendation. Comparing the bit rate and expected range, WiMAX and UWB are complementary radio technologies expected to coexist in a near future in integrated access networks. The optical access network considered in this Thesis can be regarded as a FTTH network (Fibre-to-the-Home). The wireless signals are natively transmitted over optical network, that is, without frequency upconversion and remodulation stages, over one or several optical carriers. This technology, which is known as Radio-over-Fibre (RoF), is well suited for integrated access networks. First, the requirements for the wireless convergence of services based on Multi-Band Orthogonal-Frequency Division-Multiplexing UWB (MB-OFDM UWB) and WiMAX 802.16e in Wireless Personal Area Networks (WPAN) are stated. The aim of this study is to provide relevant protection margins in order to ensure the coexistence between both technologies. The obtained protection margins are of great interest for the development of advanced interference mitigation techniques such as DAA (Detect-and-Avoid), in the framework of future cognitive radio technologies. In a second step, the wireless coexistence of MB-OFDM UWB and WiMAX technologies is analyzed from the point of view of access networks based on RoF systems. Two experimental field trials are here carried out. In the first one, the wireless convergence is evaluated in a multi-mode fibre RoF system, whereas in the second one, the RoF system is based on a standard single-mode fibre. These experimental results provide relevant fibre link transmission distances to enable the deployment of RoF networks. Moreover, a new optical transmission technique based on polarization division multiplexing is proposed and experimentally evaluated in order to ensure the wireless coexistence in RoF systems. Finally, the impact of the electro-optical Mach-Zehnder modulator is analyzed, since the dynamic range of this device limits the performance of the RoF system. Moreover, a new optical linearization technique for Mach-Zehnder modulators is proposed and evaluated in order to overcome this limitation.

Perez Soler, Joaquin

207

MÉTODO DE IMPLEMENTAÇÃO DE SISTEMA DE DIAGNÓSTICO DE FALTA PARA SUBESTAÇÕES BASEADO EM REDES DE PETRI  

Microsoft Academic Search

This paper presents a methodology for the development of a Fault Diagnosis System (FDS) based on Hierarchical Col- ored Petri Nets. The proposed FDS aims to evaluate the in- formation from the SCADA and to present a fault diagnosis sucint and accurate to the power system operators, causing the task of fault diagnosis faster, reliable and less stressful. The proposed

Raimundo Furtado Sampaio; Giovanni Cordeiro Barrosoy; Ruth Pastôra; Saraiva Leãoz

208

Método de implementação de Sistema de Diagnóstico de Falta para subestações baseado em Redes de Petri  

Microsoft Academic Search

ABSTRACT This paper presents a methodology,for the development of a Fault Diagnosis System (FDS) based on Hierarchical Col- ored Petri Nets. The proposed FDS aims to evaluate the in- formation from the SCADA and to present a fault diagnosis sucint and accurate to the power system operators, causing the task of fault diagnosis faster, reliable and less stressful. The proposed,methodology,is

Raimundo Furtado Sampaio; Giovanni Cordeiro Barroso; Ruth Pastôra Saraiva Leão

2005-01-01

209

Sistemas de producción de Spondias purpurea (Anacardiaceae) en el centro-occidente de México  

Microsoft Academic Search

Production systems of Spondias purpurea (Anacardiaceae) in Central West México. Morphological, physical and chemical traits related with fruit quality characteristics of Spondias purpurea L. agroecosystems were studied in Central-West Mexico for wild and cultivated populations. Spondias purpurea regularly thrive in shallow, rocky infertile soils unsuitable for conventional crops. The weight, axial and radial length, pH, total soluble solids (SST), reducing

Blanca C. Ramírez Hernández; Pimienta Barrios Eulogio; Javier Z. Castellanos Ramos; Alejandro Muñoz Urias; Guadalupe Palomino Hasbach; Enrique Pimienta Barrios

2008-01-01

210

Sistema upravleniya polyarizatsionnymi ehksperimentami na uskoritelyakh. (Operation system of polarization experiments for accelerators).  

National Technical Information Service (NTIS)

A multi-functional block of intercommunicational system to operate regimes of functioning of the polarized particle source, the accelerator and the storage system has been worked out and manufactured. Tuning has been made, capacity for work and practical ...

N. I. Zaika R. G. Ofengenden V. P. Tokarev A. M. Shchur

1991-01-01

211

Determinação de trechos de importância em sistemas de distribuição de água usando a vulnerabilidade hidráulica  

Microsoft Academic Search

Water supply systems, due to their configuration, tend to be vulnerable to internal and external threats, which can potentially cause instability in water distribution. The vulnerability assessment is a tool that has been used to ensure the water supply in different failure scenarios, and can assist in seeking alternatives for supplying water in emergency situations. This work aimed mainly at

Zacarias Navarro-Roa; Maurício Luiz Sens; Ramon Lucas Dalsasso; Segalla Pizzolatti

2008-01-01

212

Filmes supercondutores do sistema YBaCuO. (Superconducting films of YBaCuO).  

National Technical Information Service (NTIS)

Thick films of YBa(sub 2) Cu(sub 3) O(sub 7) (sub -) (sub x) have been prepared on alumina and YSZ (Yttria-stabilized zirconia) substrates by the screen printing technique. Several experimental conditions have been studied, for instance: sintering time, t...

A. L. Coelho

1991-01-01

213

Magnitnaya sistema plazmennoj ustanovki GOL-3. (Magnetic system of the GOL-3 plasma device).  

National Technical Information Service (NTIS)

Magnetic system of the GOL-3 device where the experiments on plasma heating by an intense relativistic electron beam beam are conducted, is described. The magnetic field in the solenoid makes up 6T, in magnetic mirrors on the solenoid end points -12T. (At...

Y. Deulin S. V. Lebedev V. S. Nikolaev E. P. Semenov

1991-01-01

214

Sistema de Desafios Abertos Inteligentes: um incremento computacional lúdico para se trabalhar o problema da aprendizagem  

Microsoft Academic Search

The work contextually in general lines action of the Educational Technology applying techniques of Artificial Intelligence with the theory of Jean Piaget. Such research, still in implementation phase, has as hypothesis that from a playful increment, supported for IA, will be possible to reach learning situations and, consequently, of cognitive development for its user. This if gives by means of

Othon C. Bastos Filho; Margarete Axt; Sofiane Labidi; Paloma Dias Silveira

215

Sistema avtomaticheskogo radiometricheskogo kontrolya tekhnologicheskogo protsessa. (Automatic radiometric control system of technological process).  

National Technical Information Service (NTIS)

A system of remote automatic control for radiochemical and technological processes connected with radioactive substances is described. The control system is created on the MERA-60 computer basis and block complex in the CAMAC format. The computer outer de...

N. I. Kroshkin V. I. Nazarenko V. A. Safonov V. A. Krivosheev V. D. Loginov

1990-01-01

216

Desempenho de cultivares de alface crespa consorciada com cenoura em três sistemas de cultivo  

Microsoft Academic Search

Performance of crispleaf lettuce cultivars intercropped with carrot in three cropping systems. The experiment was carried out in the garden of the Departamento de Fitotecnia da Escola Superior de Agricultura de Mossoró, RN, to evaluate the performance of four crispleaf lettuce cultivars intercropped with carrot in the cropping systems. The experimental design used was a randomized complete block in a

Maria Zuleide de Negreiros; Francisco Bezerra; Ednalva Patrícia de Andrade

217

Relación entre actividad enzimática y biomasa de ensambles fitoplanctónicos en el sistema pelágico  

Microsoft Academic Search

In environments with drastically fluctuating conditions, physiological and biochemical adaptations can be important for the structuration of phytoplankton assemblages. The objective of this study was to establish whether the enzymatic activity of the phytoplankton, an indicator of its dominant internal metabolism, is related to the autotrophic biomass. The geographic study area covered the South Shetland Islands (62°S), Mejillones Bay (22°S),

José L. Iriarte; Renato A. Quiñones; Rodrigo R. González; Cynthia P. Valenzuela

2007-01-01

218

Un Sistema de Control de Acceso para la Distribución de Contenidos Multimedia  

Microsoft Academic Search

La distribución de contenidos multimedia ha surgido como un nuevo mercado en expansión ofrecido por los proveedores de red, definiendo in- fraestructuras de acceso a los recursos capaces de soportar tanto accesos inalám- bricos como mediante cableado. Aunque estas infraestructuras han sido amplia- mente estudiadas en los últimos años, el principal objetivo de estos trabajos estaba centrado más en el

M. Sánchez; G. López; O. Cánovas; J. A. Sánchez; A. F. Gómez-Skarmeta

219

Sistema de disponibilização de informações geográficas do estado de Goiás na Internet  

Microsoft Academic Search

Due the growing u se of the geotechnology, many institutions are producing g reat amounts of geographical information. However the publication or availability of those information to the society in general is still a little efficient way generating, therefore, a great need for information that could not be able published or available due to the lack of resources and technological

Levindo Cardoso Medeiros

2007-01-01

220

SISTEMAS DE CONSÓRCIO NA PRODUÇÃO DE HORTALIÇAS INTERCROPPING SYSTEM FOR VEGETABLE CROPS  

Microsoft Academic Search

Intercropping system is a widely used technique for cultivating vegetable crops, with a significant impact on crop yield besides several other phytotechnical benefits. For this reason, further studies are required on polycultivation of vegetables and the possibilities for culture associations. Recent research data have shown that intercropping vegetable systems favor the phytotechnical handling of the associated cultures, most of the

Eduardo Matos Montezano; Roberta Marins; Nogueira Peil

221

MANUTENÇÃO PRODUTIVA TOTAL: UMA ANÁLISE CRÍTICA A PARTIR DE SUA INSERÇÃO NO SISTEMA TOYOTA DE PRODUÇÃO  

Microsoft Academic Search

This work presents the basics concepts of Total Productive Maintenance from an critical view point. It shows the most important relations between Total Productive Maintenance and the Toyota Production System.

José Antônio; Valle Antunes

222

MARKETING ECOLÓGICO Y SISTEMAS DE GESTIÓN AMBIENTAL: CONCEPTOS Y ESTRATEGIAS EMPRESARIALES 1  

Microsoft Academic Search

In the latest years, companies are in a new competence scene facing not only eco- nomic an social rules, but also ecological ones. Being aware of the changes that are taking place around firms, in this paper we analyse the way a company must direct its management toward the new relationship between firm-natural environment-stakeholders and the ecological marketing strategies (product,

MARÍA MONTSERRAT; LORENZO DÍAZ

2002-01-01

223

Mecanismos de detección del contraste cromático y de luminancia en el sistema visual humano  

Microsoft Academic Search

Abstract: The main goal of this paper is to provide a criti- cal assessment about luminance and chromatic processing bythe,Human Visual System. Although early experiments seemed to favor a modular,architecture (so that each type of information is processed independently) more recent re- search discover a more ,complex ,panorama. Luminance

María J. Hernández-Lloreda

2001-01-01

224

CitationFinder: Um Sistema Baseado em Conhecimento para Classificação de Páginas de Publicações na Web  

Microsoft Academic Search

http:\\/\\/www.cin.ufpe.br\\/{~mln, ~fab} Abstract. This regularity allows the automatic identification of such pages by computational systems based on domain knowledge. The work presented here describes the CitationFinder, a knowledge-based system for the automatic classification of Web pages which contain citations of technical and scientific publications. The systems counts on a knowledge base of production rules with associated certainty factors, to improve

Mariana Lara Neves; Flávia de Almeida Barros

225

UM CLASSIFICADOR DE FALTAS PARA ANÁLISE DE OCORRÊNCIAS NO SISTEMA CHESF  

Microsoft Academic Search

Artificial Intelligence techniques were used, focusing on artificial neural networks, to the development of a software applied to fault identification and classification in transmission lines. The input data to the neural network are the sampled values of voltage and current waveforms. Those values proceed from the digital fault recorders, which monitor the transmission lines and make the data available in

BENEMAR A. SOUZA; NÚBIA S. D. BRITO; KLEBER M. SILVA; FLÁVIO B. COSTA; CARLOS M. M. FILHO

226

[Distribution and taxonomy of Pyrgophorus platyrachis (Caenogastropoda: Hydrobiidae) in the Sistema de Maracaibo, Venezuela].  

PubMed

The presence of a microgastropod identified as Potamopyrgus sp. was detected previously in the Maracaibo System; nevertheless, a detailed morphological analysis identified this snail in other genera. The objective of this work is to update the distribution and taxonomy of Pyrgophorus platyrachis in the Maracaibo System, Venezuela in samples obtained between 2001 and 2009. The presence of hundreds of individuals of P. platyrachis were observed in the estuary, indeed in the localities of the Gran Eneal lagoon (4 111 snails), Peonías lagoon (229 snails), Punta Capitán Chico (758 snails), San Francisco (2 517 snails), Curarire (240 snails), Apon River mouth (173 snails), Ojeda City (240 snails), Bachaquero (128 snails) and Tomoporo de Agua (385 snails). We performed a taxonomical analysis, and emphasized in ecological aspects, such as the distribution of the species and habitat features, as near vegetation and type of associated sediment. We found three morphotypes of the species, one smooth, another with spiral striations and the other with spines. Smooth morphotype was exclusive of the Gran Eneal lagoon, Peonías lagoon, Punta Capitan Chico and Apon River mouth localities, whereas the other two morphotypes were found together in the remaining localities. According to our detailed anatomical and taxonomical analysis we propose a synonymy between P. platyrachis and the other species described like Pyrgophorus parvulus and Pyrgophorus spinosus. PMID:22017122

Nava, Mario; Severeyn, Héctor; Machado, Nakary

2011-09-01

227

La producción de cráteres en el Sistema de Satélites de Saturno  

NASA Astrophysics Data System (ADS)

The saturnian satellite system has been observed by the Cassini-Huygens mission, in particular the impact craters on them. These satellites present a diversity of surfaces which could help us to understand about their history. To study the production of craters on these satellites, we develop a theoretical model from previous simulations and we obtain the contribution of Centaur objects to the production of craters. We calculate the number of craters for a given size and the greatest crater produced by Centaur objects. This allowed us to compare our theoretical results with the observations by the Cassini-Huygens and determine the origin of craters as well as constrain the size distribution of Centaurs. FULL TEXT IN SPANISH

Zanardi, M.; Di Sisto, R. P.

228

Modelos autoconsistentes de sistemas estelares cuspidales y triaxiales con distribución de velocidades casi isotrópica  

NASA Astrophysics Data System (ADS)

It has been shown in many works that it is possible to build stable, self-consistent models of triaxial stellar systems, even with cusps, and containing high percentages of chaotic orbits. Since all these models have been obtained from cold collapses, their velocity distributions are strongly radial. Also, chaos was computed using either Lyapunov exponents or SALI. However, models obtained by adiabatic deformation of spherical systems, in which the velocity distribution is more isotropic, showed a very low level of chaos, though it must be noted that the method of detecting chaos used in this case, namely the variation of orbital frequencies, is less sensitive than the abovementioned methods. In this work, we present models obtained by adiabatic deformation, in which we compute the fraction of chaotic orbits using both Lyapunov exponents and variation of orbital frequencies. Our results show that the percentages of chaotic orbits is significant, though they are smaller than those obtained in models with strong radial velocity components. FULL TEXT IN SPANISH

Carpintero, D. D.; Muzzio, J. C.; Navone, H. D.; Zorzi, A. F.

229

Interacciones de galaxias: sistemas co-rotantes y contra-rotantes  

NASA Astrophysics Data System (ADS)

In this paper we present a sample of interacting galaxy pairs with tidal tails. We perform a visual cassification according to the sense of rotation of the spiral arms of each member of the tidal system. We study general features of interacting galaxies such as mass content in stars (M^*), luminosity ratios and local environment through an analysis of the ?_5 parameter. FULL TEXT IN SPANISH

Mesa, V.; Duplancic, F.; Alonso, S.; García Lambas, D.

230

Um Sistema de Banco de Dados Replicado Gerenciado através de Applets Distribuídas  

Microsoft Academic Search

A distributed and replied database it is characterized as a collection of several similar databases, logically connected through a computers net. This work has as proposal the definition, administration and implementation of a distributed and replied database that uses several databases in different servers. Therefore, the distributed transactions, width concurrency control, are executed through the same software in the different

André Luis; Castro de Freitas

231

Análisis integral como sistema de medición y gestión de capitales intangibles en organizaciones y territorios  

Microsoft Academic Search

In the knowledge society, it is necessary to have new approaches of measurement and management for all the intangible ones that generate value, not only for companies but also for the national, regional or local territories. The most widespread methods have begun in the business area; these are support to the macro systems implemented in the last years, under the

Victor Raúl LÓPEZ RUIZ; Domingo NEVADO PEÑA

2008-01-01

232

GPS, punto de contacto entre la Astronomía y otras disciplinas  

NASA Astrophysics Data System (ADS)

En los primeros años de la pasada década, un grupo de Astrónomos de La Plata iniciaron trabajos de investigación en Geodesia Satelital. En esta presentación se propone repasar sus principales logros y situarlos en el contexto del desarrollo de la disciplina a nivel mundial. Por entonces las aplicaciones prácticas de la disciplina eran indirectas y solo evidentes para los especialistas. Los errores del Posicionamiento Satelital eran de varios metros y en posicionamiento relativo, del orden de medio metro. Estos resultados se lograban al cabo de varios días de medición continuada. En los años siguientes, el sistema GPS alcanzó su nivel operacional y produjo una revolución tanto en lo relacionado con los tiempos de medición como con las precisiones. El grupo de La Plata se desarrolló simultáneamente con GPS, lo que posibilitó su participación actual en diversos temas vigentes: aplicaciones de alta precisión para la materialización de sistemas terrestres de referencia, monitoreo de movimientos de la corteza, contribución con servicios internacionales para la determinación de movimientos tectónicos globales y regionales, monitoreo de la ionósfera a partir de la propagación de las señales, determinación de la ondulación del geoide a escala local, etc. También se generaron muchas aplicaciones prácticas algunas en tiempo real: navegación, apoyo a imágenes aéreas o satelitales, aplicaciones a la agricultura, catastro y ordenamiento territorial, apoyo a relevamientos geofísicos, etc.

Perdomo, R.

233

Distributive immunization of networks against viruses using the `honey-pot' architecture  

NASA Astrophysics Data System (ADS)

Although computer viruses cause tremendous economic loss, defence mechanisms fail to adapt to their rapid evolution. Previous immunization strategies have been characterized as being static and centralized, which has made virus containment difficult or even impossible. We suggest, instead, to propagate the immunization agent as an epidemic. The main problem with epidemic vaccine propagation is that it is bound to lag behind the virus. We suggest giving the vaccine an advantage over the virus by allowing it to leapfrog through a separate, overlapping, partially correlated network. This enables the antivirus to contain the epidemic efficiently. We systemize this concept with a `honey-pot' architecture that achieves both early virus discovery and rapid antivirus dissemination. We present analytic, as well as simulation, results for a set of realistic topologies that illustrate the effectiveness of this approach.

Goldenberg, Jacob; Shavitt, Yuval; Shir, Eran; Solomon, Sorin

2005-12-01

234

The WildList Organization International  

NSDL National Science Digital Library

The WildList is a free list of all known computer viruses that are spreading in the world, as compiled by volunteer antivirus experts of the WildList Organization International. It is updated monthly and, as one can imagine, is quite lengthy. The site has many other interesting features besides the list. For example, a somewhat humorous article by the WildList's founder describes his views on "how scientific naming works" for computer viruses. Several other papers are also offered that deal with virus issues. Some links to sites that test products or describe viruses are given as well. This site takes a very objective approach to releasing information and, therefore, does not endorse any particular antivirus software.

1999-01-01

235

Chicken recombinant antibodies against infectious bursal disease virus are able to form antibody–virus immune complex  

Microsoft Academic Search

Virus particles exposed to specific anti-virus antibodies result in the formation of immune complexes (Icx). Recent vaccination strategies have employed this feature, and an infectious bursal disease virus (IBDV) vaccine based on Icx has been released and is expected to replace conventional IBDV vaccines. We evaluated whether chicken recombinant antibodies (rAb) specific for IBDV, rather than conventional chicken anti-IBDV sera,

J. Ignjatovic; G. Gould; L. Trinidad; S. Sapats

2006-01-01

236

In GFP with high risk HPV18E6 fusion protein expressed 293T and MCF7 cells, the endogenous wild-type p53 could be transiently phosphorylated at multiple sites  

Microsoft Academic Search

BACKGROUND: Infected cells recognize viral replication as a DNA damage stress and elicit the host surveillance mechanism to anti-virus infection. Modulation of the activity of tumor suppressor p53 is a key event in the replication of many viruses. They could manipulate p53 function through phosphorylation modification for their own purpose. But there is rarely research about p53 phosphorylation status in

Lina Sun; Ge Zhang; Zongfang Li; Tusheng Song; Chen Huang; Lusheng Si

2008-01-01

237

Malicious Code Detection Using Active Learning  

Microsoft Academic Search

The recent growth in network usage has motivated the creation of new malicious code for various purposes, including economic\\u000a and other malicious purposes. Currently, dozens of new malicious codes are created every day and this number is expected to\\u000a increase in the coming years. Today’s signature-based anti-viruses and heuristic-based methods are accurate, but cannot detect\\u000a new malicious code. Recently, classification

Robert Moskovitch; Nir Nissim; Yuval Elovici

2008-01-01

238

Design and Implementation of a Secure Modbus Protocol  

Microsoft Academic Search

The interconnectivity of modern and legacy supervisory control and data acquisition (SCADA) systems with corporate networks\\u000a and the Internet has significantly increased the threats to critical infrastructure assets. Meanwhile, traditional IT security\\u000a solutions such as firewalls, intrusion detection systems and antivirus software are relatively ineffective against attacks\\u000a that specifically target vulnerabilities in SCADA protocols. This paper describes a secure version

Igor Nai Fovino; Andrea Carcano; Marcelo Masera; Alberto Trombetta

2009-01-01

239

N-gram analysis for computer virus detection  

Microsoft Academic Search

Generic computer virus detection is the need of the hour as most commercial antivirus software fail to detect unknown and new viruses. Motivated by the success of datamining\\/machine learning techniques in intrusion detection systems, recent research in detecting malicious executables is directed towards devising efficient non-signature-based techniques that can profile the program characteristics from a set of training examples. Byte

D. Krishna Sandeep Reddy; Arun K. Pujari

2006-01-01

240

Biological Activities and Corresponding Sar Analysis of Andrographolide and its Derivatives.  

PubMed

In recent years pharmaceutical chemists have synthesized large numbers of andrographolide derivatives, which bear important biological activities such as anti-inflammatory, antibacterial, antivirus, antitumor, antidiabetic, and antifeedant. Consequently, the corresponding SAR presents more and more pronounced. This paper aimed to review all the available literature on this field, which highlighted the significant achievements on the structural modification and SAR of andrographolide and its derivatives. PMID:22512591

Zhou, Bin; Zhang, Dayong; Wu, Xiaoming

2012-04-17

241

AVALIAÇÃO DA COMPETITIVIDADE DO SISTEMA AGROINDUSTRIAL DA CANA-DE-AÇÚCAR NA REGIÃO NORTE FLUMINENSE ponciano@uenf.br Apresentação Oral-Estrutura, Evolução e Dinâmica do s Sistemas Agroalimentares e Cadeias Agroindustriais  

Microsoft Academic Search

The sugarcane agribusiness in the North Region of R io de Janeiro, the most ancient economic activity of Rio de Janeiro state, lost sig nificant parcel of the Brazilian market from the end of 1980's, with the closing the majori ty of its industrial park, which is still useless. Conversely, in the same period, the Brazil ian market share in

Grupo de Pesquisa

242

Efectos difusivos en la formación de enanas blancas de Helio de baja masa en sistemas binarios cerrados  

NASA Astrophysics Data System (ADS)

In the last years, and thanks to advances in observational techniques, many astronomers have discovered in a great number of binary radio-pulsars the presence of a helium white dwarf resulting from a previous evolutionary state in which the progenitor of this star experienced one or more episodes of mass transfer to the compact component in the pair. That is the case for PSR B1855+09 (van Kerkwijk, M. H., Bell, J. F, Kaspi, V. M., & Kulkarni, S. R. 2000, ApJ 530, L37), where the mass for the white dwarf is known accurately from measurements of the Shapiro delay of the pulsar signal, MWD = 0.258+0.028-0.016 M?; for PSR J02018 + 4232 (Bassa, C. G., van Kerkwijk, M. H., & Kulkarni, S. R. 2003, A&A, 403, 1067), the spectra confirm that the companion is a helium-core white dwarf of ? 0.2 M?. On the other hand, there are several authors (Ferraro, F., Possenti, A., Sabbi, E., & D'Amico, N. 2003, ApJ, 596, L211; Bassa et al. 2003) that have identified the optical binary companion to the BMSP PSR J1911 - 5958A, located in the halo of the Galactic globular cluster NGC 6752, like a blue star whose position in the color-magnitude diagram is consistent with the cooling sequence of a low-mass, ? 0.17 - 0.20 M?, low metallicity helium white dwarf at the cluster distance. Finally, the color and magnitude of the stellar companion for B 1620-26 indicate that is a white dwarf of 0.34 ± 0.04 M? (Sigurdson, S., Richer, H. B., Hansen, B. M., Stairs, I. H. & Thorset, S. E. 2003, Science, 301, 193S). This has motivated us to study the formation of low mass helium white dwarfs in the context of binary evolution. For that purpose, using the code of binary evolution, entirely developed in the Facultad de Ciencias Astronómicas y Geofísicas of the Universidad Nacional de La Plata, Argentina, we have investigated the effects of diffusive processes on the evolution of a star member of a close binary system. A similar study was performed for Althaus, L. G., Serenelli, A. M., & Benvenuto, O. G. (2001, MNRAS, 323, 471) but in that paper the mass transfer was mimicked by subtracting mass to a progenitor of 1 M? to obtain the mass for the desired object. Actually, our binary code has a full nuclear reactions network for hydrogen and helium burning that allowed us to follow the abundances of fifteen isotopes throughout the entire evolution of the star. We have also included a detailed equation of state. The mass loss treatment is non conservative. We have modified the conditions for the beginning and end of mass transfer episodes. In our previous version, we assumed it to occur when the stellar radius was greater or smaller, respectively, that the Roche Lobe radius for the star. This introduced numerical problems, especially at the end of mass transfer phases. We adopted H. Ritter (1988, A&A, 202, 93) formulation that considers a finite scale height in the stellar atmosphere. The numerical behaviour in much more satisfactory, besides that it constitutes a more appropriate description for the physical problem. We perform the calculations for the evolution of the primary star in a close binary system of initial mass 2 M?, initial period of 1 day, initial mass ratio of 1.4142 and solar metallicity. We have done the calculations in four cases: A) with diffusion and all Roche Lobe overflows, B) with diffusion and only the first Roche Lobe overflow, C) without diffusion and all Roche Lobe overflows, D) without diffusion and only the first Roche Lobe overflow. Cases B) and D) where performed to compare with results obtained for Althaus et al. (2001). The main conclusion of this work is that the age of these objects is mainly determined by diffusive effects, and the late stages of mass transfer, not considered in Althaus et al. (2001), constituted a minor effect on the scales of cooling times.

De Vito, M. A.; Benvenuto, O. G.

243

Cuerpo de Paz Manual de Sistema de Programacion y Capacitacion (Peace Corps Programming and Training System Manual): T0063.  

ERIC Educational Resources Information Center

This Spanish version of the Peace Corps Programming and Training System Manual is designed to help field staff members of the Peace Corps train volunteers. Its task descriptions, guidelines, examples, and definitions are intended to be practical and informative rather than restrictive. The manual is divided into six major sections: (1)…

Peace Corps, Washington, DC.

244

Air pollution and its impact on the cardiovascular system Poluição atmosférica e seu impacto no sistema cardiovascular  

Microsoft Academic Search

Despite the great medical advances, cardiovascular disease remains one of the major causes of mortality worldwide, especially in industrialized countries. It develops as a result of countless complex interactions between genetic factors such as those related to age, sex, family history, weight, and post-menopausal status in women; and to environment-related factors such as cigarette smoking, alcohol use, eating habits, physical

Marjorie Paris Colombini

245

Computación Evolutiva y Teoría de Juegos: Un Híbrido Para La Automatización En Sistemas De Soporte A La Negociación  

Microsoft Academic Search

This paper is about the decisión analysis methods for group decisions over the web, in reason of involve the people in the different decisions that interest them, we have in internet one chance for to reduce the gap between governor and governed We can summarize the main object that pursues this like to propose one automated negotiation approach in the

Henry Gómez Rocha; Jhon Acosta Parejo; Oswaldo Velez-langs

2006-01-01

246

Ensino de Sistemas de Informac ¸ ˜ ao para Cursos de Graduac ¸ ˜ ao em Computac ¸ ˜ ao: Uma Experiencia Integrada e Inovadora  

Microsoft Academic Search

Teaching Information Systems in Computer graduation course s uses techniques already being applyed in market for some years, b ut when the aim is to integrate new technologies to systems practice at real or ganization environ- ments, new integrated and inovative approaches need to be us ed. This article presents a teaching proposal for Information Systems based on an inovative

Ghedini Ralha; Jorge Henrique Cabral Fernandes

247

Proposta de Um Sistema Semi-Automatico Para Teste de Programas (Proposal for a Semiautomatic Program Testing System).  

National Technical Information Service (NTIS)

This work reflects the effort towards the development of software tools to be used in the selection of testing data for FORTRAN programs. An interactive system is described for analyzing programs which provides the user, at the end of an execution of a gi...

N. C. D. Ferreira

1984-01-01

248

Proposta de Um Sistema de Software Para Teste de Satelites (Proposal of a Software System for Satellite Testing).  

National Technical Information Service (NTIS)

In contribution to the development of the Banco de Teste (BT), which is a satellite test system, this work aims to present the survey of the functional requirements for the satellite testing specific software of the BT and to propose a method to be follow...

G. M. Ambroz

1987-01-01

249

Region Emilia Romagna: Primary Health Care Integration/Regione Emilia-Romagna: l'integrazione nel sistema di Cure Primarie  

PubMed Central

The politics of Region Emilia-Romagna have been meant to improve social and health care integration through an architecture of local services coherent with this purpose, setting up a Department dedicated to Primary Care inside the Social and Health District. The territorial basis of the Local Health Units (LHU), the resident people, the sustained public spending, the employed human resources and the provided services all delineate the organization of the LHU. The purpose is to grant strong integration among local bodies and LHUs through a governance system (planning, management and administration) that makes a distinction between commissioning and supply. The Committenza (commissioning department), which reports to the Strategic Direction and the District, directs the offer in connection with the need analysis, whereas the Primary Care Department arranges activities and provides services by means of integrated networks which ensure continuity to the care. The main hub in the network is known as the Casa della Salute (House of Health), which works through structured practices, protocols and procedures. LHU professionals and freelancers under contract supply primary, in-home and nursing home care, plus specialist outpatient treatment. The Casa della Salute, whose size will depend on the context (large, medium and small), are reliable reference points for citizens, who can address to them in every moment of the day. On behalf of the Regione Emilia-Romagna, it is the Primary Care Observatory which registers the functions existing in the 42 Houses of Health and their organizational and structural characteristics. The analysis of the obtained data will increase enhance the Houses’ implementation.

Basenghi, Maria

2012-01-01

250

Il sistema tributario nel contesto federalista: le proposte dell'Alta Commissione Collocazione J.E.L.: H71  

Microsoft Academic Search

The High Commission's proposals on Fiscal Federali sm, in application of Art. 119 of the new Italian Constitution, are illus trated after a brief analysis of the economic and political factors at the basis of its promulgation. The suitability of the various taxes for the assignation to different leve ls of government is examined by considering numerous aspects, such as:

Giuseppe Vitaletti

251

Fabrication of Miniature Fluidic Components for an Integration System . Fabricacion de Componentes Fluidicos Miniatura. Integracion de Sistemas.  

National Technical Information Service (NTIS)

A method is presented for fabricating miniature fluidic elements using photochemical engraving. The experimental procedures, equipment, and results obtained with copper, bronze, and stainless steel are described. The assembly is described of the silhouett...

O. A. Szakalicki

1972-01-01

252

CONTRIBUIÇÃO DA GEOESTATÍSTICA PARA O PLANEJAMENTO EXPERIMENTAL DE UMA PASTAGEM DO SISTEMA INTEGRADO DE PRODUÇÃO AGROECOLÓGICA (FAZENDINHA KM47)  

Microsoft Academic Search

GONÇALVES, M. G.; FARIAS, L. N.; COSTA, A. D.; MOTA, L. dos S.; OLIVEIRA, B. L. DE; CEDDIA, M. B.; VIEIRA, S. R. Geoestatiscal contribution to experimental planning of pasture located in the Agro ecological Integrated System of Production. Revista Universidade Rural: Série Ciências da Vida, Seropédica, RJ: EDUR, v. 25, n.1, p. 01-05, jan.-jun., 2005. In order to evaluate

MARCELLO GUERREIRO GONÇALVES; LUISMAR NOGUEIRA FARIAS; ALESSANDRA DALLA COSTA; LENILSON DOS SANTOS MOTA; BRUNO LEVINO DE OLIVEIRA; MARCOS BACIS CEDDIA; SIDNEY ROSA VIEIRA

253

Efectos difusivos en la formación de enanas blancas de Helio de baja masa en sistemas binarios cerrados  

Microsoft Academic Search

In the last years, and thanks to advances in observational techniques, many astronomers have discovered in a great number of binary radio-pulsars the presence of a helium white dwarf resulting from a previous evolutionary state in which the progenitor of this star experienced one or more episodes of mass transfer to the compact component in the pair. That is the

M. A. De Vito; O. G. Benvenuto

2003-01-01

254

Scientific Theory on the Origin of the Solar System . Teoria Cientifica Sobre El Origen Del Sistema Solar.  

National Technical Information Service (NTIS)

A theory, based on solar activity, for the origin of the solar system is discussed. The formation of the planets and their atmospheres, the origin of the sun, and meteorites are also discussed. The observations since 1949 supporting the theory are present...

G. Tapia De Navarro

1970-01-01

255

Recuperacao de Imagens Medicas por Conteudo em um Sistema de Gerenciamento de Banco de Dados de Codigo Livre  

Microsoft Academic Search

This paper presents the techniques and the implementation of content-based similarity queries of medical images in an open source database management system, PostgreSQL. The main aspects regarding similarity queries, as image feature extraction and indexing are explained. Empowered with the new features, the development teams working with computer-aided diagnostics systems and medical learning systems can pose similarity queries over images

Humberto Razente; Maria Camila; N. Barioni; Agma J. M. Traina; Caetano Traina Jr

256

Sistema Grafico Para O Tracado de Cartas Sinoticas Por Computado (A Graphic System for Drawing Synoptic Maps by Computer).  

National Technical Information Service (NTIS)

A graphic computer system developed to draw synoptic charts and to store meteorological data in a data base at the Institute of Space Research is described. The system, SINOGRAFO, was used to trace the contour of South America and international boundaries...

S. R. M. Pellegrino J. A. G. Pereira

1984-01-01

257

Granitos e granitoides da regiao sul - Sistema molibdenita granito. (Granites and granitoids of the southern region - Granite molybdenite system).  

National Technical Information Service (NTIS)

Economic concentrations of molybdenum are genetically closely associated with acidic and moderately acid granitoids-granites, granodiorites, monzonites and diorites, and are located in two geotectonic settings: subduction-related and rift-related. The aim...

R. S. Issler

1987-01-01

258

A Study of Natural Antioxidant (Vitamin E. System) in Malignant Growth (Issledovanie Prirodnogo Antioksidanta (Sistema Vitamina E) pri Zlokachestvennom Roste).  

National Technical Information Service (NTIS)

A quantitative study of tocopherol and its derivatives in tumorous tissues and tissues of tumor-bearing animals revealed a disturbance of vitamin E balance in malignant growth. In all tested tumorous strains a significant amount of tocopherol and its deri...

S. A. Burobina E. A. Neifakh

1970-01-01

259

Avaliação de uma metodologia para implantação de sistemas de gestão da qualidade em empresas de projetos para a construção civil  

Microsoft Academic Search

Although quality system certification of construction companies in Brazil started in 1997, only in 1999 the first design organisations started to implement quality management systems. Nowadays, there is an increasing number of design companies that see the implementation of quality management systems as an opportunity for improving their products and services. This article describes a methodology for implementation of quality

Michele Fossati; Humberto Ramos Roman

260

Matéria orgânica e propriedades físicas de um Argissolo Amarelo Coeso sob sistemas de manejo com cana-de-açúcar1  

Microsoft Academic Search

The continuous cultivation of the sugar cane for long-term under different management systems in soils of Coastal Tablelands can cause alterations in the organic matter and in the physical properties of the soil. The effects of different management systems with sugar cane on the properties of a Cohesive Yellow Argisol, in the Triunfo Sugar Cane Mill, in the State of

Apolino J. N. da Silva; Mário S. V. Cabeda; Fabíola G. de Carvalho

261

Development of an Automatic System for Plotting Synoptic Charts Desenvolvimento Do Sistema de Automacao DA Plotagem de Cartas Sinoticas.  

National Technical Information Service (NTIS)

A computerized system for acquisition and presentation of weather data is discussed. Weather and navigation charts (sea and air) based on the resultant data are plotted with greater speed and accuracy.

M. F. P. Sepulveda J. A. G. Pereira

1980-01-01

262

ANÁLISE DE VULNERABILIDADE DE UM PARQUE URBANO ATRAVÉS DE MÓDULOS DE APOIO À DECISÃO EM SISTEMAS DE INFORMAÇÃO GEOGRÁFICA  

Microsoft Academic Search

The urbanization of the Brazilian metropolinan regions produced complex, unequal and compartmented structures. Slopes and green areas were and are not properly used, resulting in environmental degradation and facilitating environmental hazards. The implementation of conservation policies asks for studies and zoning as a way to support the management and monitoring of such areas. The present study develops a vulnerability map

Heinrich Hasenack; Eliseu Weber; Rejane Valdameri

1993-01-01

263

S.A.D. (SISTEMA DE APOYO AL DIBUJO): UNA HERRAMIENTA INTEGRADA EN LA ENSEÑANZA DE LA EXPRESIÓN GRÁFICA  

Microsoft Academic Search

The teaching of Graphic Expression in the technical programs of universities has improved last years. The arrival of new technologies have helped in this evolution, and as a result, it is crucial to understand the teaching and learning of this subject. In this communication, we present a novel web-based application that is usefull to help both teaching and learning of

Melchor García Domínguez; Gerardo Martín Lorenzo; José Pablo Suárez Rivero; José Pérez Bermúdez; Francisco Suárez Benítez

264

Sistemas de Informação Geográfica como ferramenta para o diagnóstico e gestão de macrobacias no arco do desmatamento na Amazônia  

Microsoft Academic Search

The Amazon basin is rather known by their peculiar ecossystem with high biodiversity spreaded out by a large drainage basin which produces almost 15% of the world's drinking water. The human impacts of deforestation during he last 30 years are responsible for about 653.000Km2 of a clear forest surface shaped and denominated as the deforestation arch. Most of the deforestation

Ralph Trancoso

2005-01-01

265

Modelo de canal aeronáutico en banda Ka para análisis de sistemas basados en plataformas estratosféricas tipo HAPS  

Microsoft Academic Search

In this paper, BER performances are obtained by simulation for Ka-band in High Altitude Platforms Stations (HAPS) channel model incorporating weather effects (rain). A channel model based on Whenzen and Lutz proposals about land mobile satellite is discussed for two propagation states and a first approach is followed for an interesting situation. INTRODUCCION La posibilidad de colocar una estación radioeléctrica

Fernando C. Ulloa

266

Simulación de sistemas de modulación digital en banda base para ambientes de cómputo paralelo basado en lenguaje ZPL  

Microsoft Academic Search

This work describes a way of using ZPL language to simulate digital modulation systems in parallel ar- quitectures, based on cluster of workstations. An analysis is presented to show the parallelism potential in digital modulation systems, taking advantage of the capacity for data-parallel array programming of ZPL. Simulations for bit error rate computation were implemented using ZPL, in M-PSK and

Carlos Peña; Demetrio Rey Lago

2007-01-01

267

LA INTEGRACIÓN DE LOS SISTEMAS DE GESTIÓN, UN RETO PARA LA EMPRESA CUBANA CONTEMPORÁNEA. CASO DE ESTUDIO  

Microsoft Academic Search

La modernización de las Empresas implica una serie de cambios importantes en la definición de su misión, visión, valores y objetivos. Entre los aspectos más destacables de este nuevo enfoque se incluyen la mejora continua, la satisfacción de los clientes internos y externos, la preservación del medio ambiente y la protección al trabajador.

Dania Mora Hernández

2009-01-01

268

Tecnología para la gestión ambiental en el sistema de gestión de recursos humanos en instituciones de educación superior  

Microsoft Academic Search

Se planteó en la investigación que las Instituciones de Educación Superior en Cuba (específicamente la Universidad de Holguín) presentan la necesidad de INTEGRAR la Gestión Ambiental y la Gestión de Recursos Humanos, debido al papel fundamental que juega el hombre en el desempeño exitoso de cualquier organización y por consiguiente las consecuencias que esta provoca en el entorno.

Yunelsy Ortiz Chávez

2011-01-01

269

EL AMBIENTE Y LA CULTURA ORGANIZACIONAL, ELEMENTOS PRESENTE EN LOS SISTEMAS DE GESTIÓN DE LA INFORMACIÓN EN LAS ORGANIZACIONES  

Microsoft Academic Search

Se exponen algunos conceptos sobre gestión de la información desde la perspectiva de diversos autores. Se definen ambiente y cultura organizacional en el contexto de las organizaciones y se analiza su influencia en los procesos de gestión de la información.

Esther Paredes Esponda

2012-01-01

270

A Mixed Hardware\\/Software SOFM Training System Sistema Híbrido Hardware\\/Software para el Entrenamiento de Redes SOFM  

Microsoft Academic Search

This paper describes the design of a training system for a Self-Organizing Feature Map (SOFM). The system design aims two goals. The first is to reduce the training processing time by exploiting the inherent neural networks (NNs) parallelism through the SOFM hardware implementation. The second goal is to provide versatility to the training process by means of pre- and post

Agustín Ramírez Agundis; Rafael Gadea Girones; Ricardo Colom Palero; Javier Díaz Carmona

271

Sistemas de galaxias luminosas rojas: Supercúmulos a partir de sobredensidades de galaxias en el catálogo fotométrico del SDSS.  

NASA Astrophysics Data System (ADS)

We identify luminous red galaxy (LRG) systems in the Sloan Survey, using a percolation algorithm. We find 737 systems with at least 4 members, on a total of 17977 LRGs in the range 0.30

Luparello, H.; Lares, M.; García Lambas, D.

272

The DNA-binding and bioactivity of rare earth metal complexes.  

PubMed

Recently more and more attention is paid to the rare earth metal complexes, because the properties of the rare earth metals are similar to those of the transition metals such as the similar atomic and the ionic radius. A large number of rare metal complexes were synthesized, and their bioactivities were also studied. This review highlights recent researches on the interaction of some rare earth metal complexes with DNA, analyzes how the configuration of the complexes influences the binding affinity, and focuses on the pharmacological activities of the complexes, such as anticancer, antibacterial, antioxidant, anti-inflammatory and anti-virus. PMID:24568297

Yang, Li; Wang, Bochu; Tan, Jun; Zhu, Liancai

2013-08-01

273

High cell density perfusion culture of mouse-human hybridomas  

Microsoft Academic Search

Five mouse-human hybridomas, H2, H3, V1, V2 and V6 cells secreting anti-virus human monoclonal immunoglobulin G (IgG) were cultured in serum-free media at high density in a settling perfusion culture vessel with an inner cell sedimentation zone. The H2, H3 and V6 cells reached a density of 107 cells\\/ml in 0.5% (w\\/v) BSA-ITES-eRDF (see Materials and methods). The H2 cells

Yoshiharu Takazawa; Michiyuki Tokashiki

1989-01-01

274

Interferon ?-induced sarcoidosis to a patient with polycythemia vera  

PubMed Central

Treatment with interferon (IFN) can precipitate a variety of inflammatory conditions, including sarcoidosis. Although many other systems can be affected, the clinical picture in this case mostly includes cutaneous and pulmonary symptoms. The prognosis is better than the idiopathic form of the disease, and the most effective treatment is considered the discontinuation of antivirus therapy alone or in combination with corticosteroid administration. The authors present the case of a 36-year-old man who developed sarcoidosis stage I after 2 years of IFN? therapy for polycythemia vera.

Sionidou, M; Spyratos, D; Chloros, D; Sichletidis, L

2011-01-01

275

Evaluation of Tools for Protection of Interest against Hacking and Cracking  

NASA Astrophysics Data System (ADS)

The internet considered a tool that effectively ensures communication globally has been hindered by hackers and crackers continuously. In so doing, a multitude of network facilitated tools such as firewalls, virtual private networks (VPN) and a variety of antivirus software packages has been enabled for dealing with such predicaments. However, more often than not these facilitated tools are marketed as perfect solutions to the ever culminating problems such as loss of data and privacy in networked and world wide intercommunications. We provide a forum for addressing these perceived problems in this paper.

Jahankhani, Hossein; Antonijevic, Branko; Walcott, Terry

276

MicroRNA Roles in the NF-?B Signaling Pathway during Viral Infections  

PubMed Central

NF-?B signaling network is a crucial component of innate immunity. miRNAs are a subtype of small noncoding RNAs, involved in regulation of gene expression at the posttranscriptional level. Increasing evidence has emerged that miRNAs play an important role in regulation of NF-?B signaling pathway during viral infections. Both host and viral miRNAs are attributed to modulation of NF-?B activity, thus affecting viral infection and clearance. Understandings of the mechanisms of these miRNAs will open a direction for development of novel antivirus drugs.

Dou, Yongxi; Chen, Yixia

2014-01-01

277

[Inhibition of adenovirus reproduction in cell culture by specific antibodies].  

PubMed

The capacity of specific antibodies to inhibit the reproduction of homo- and heterologous adenoviruses in Hela cell added to culture medium after virus adsorption was studied. The inhibiting effect of polyclonal antivirus and monospecific antihexone antibodies to homo- and heterologous adenoviruses was shown. The effect was more expressed when using antibodies to homologous antibodies. The intensity of inhibition depended on antibodies concentration in the medium and infecting dose of the virus. Essential reduction of the quantity of infected cells and a decrease of the titer of adenovirus synthesized in the presence of homo- and heterologous antibodies was shown but adenovirus reproduction was not inhibited completely. PMID:19663330

Povnytsia, O Iu; Nosach, L M; Zhovnovata, V L; Zahorodnia, S D; Vantsak, N P; Tokarchuk, L V; Polishchuk, O M; Diachenko, N S

2009-01-01

278

Small-angle neutron scattering study of recombinant yeast-derived human hepatitis B virus surface antigen vaccine particle  

NASA Astrophysics Data System (ADS)

The overall and internal structure of recombinant yeast-derived human hepatitis B virus surface antigen vaccine particles was investigated by small-angle neutron scattering using the contrast variation method. The vaccine is a nearly spherical particle, and its contrast-matching point was determined to be at about 24% D 2O content, indicating that a large part of the vaccine particle is occupied by lipids and carbohydrates from the yeast. The Stuhrmann plot suggests that the surface antigens exist predominantly in the peripheral region of the particle, which is favorable to the induction of anti-virus antibodies.

Sato, M.; Ito, Y.; Kameyama, K.; Imai, M.; Ishikawa, N.; Takagi, T.

1995-02-01

279

Identification of Malicious Web Pages by Inductive Learning  

NASA Astrophysics Data System (ADS)

Malicious web pages are an increasing threat to current computer systems in recent years. Traditional anti-virus techniques focus typically on detection of the static signatures of Malware and are ineffective against these new threats because they cannot deal with zero-day attacks. In this paper, a novel classification method for detecting malicious web pages is presented. This method is generalization and specialization of attack pattern based on inductive learning, which can be used for updating and expanding knowledge database. The attack pattern is established from an example and generalized by inductive learning, which can be used to detect unknown attacks whose behavior is similar to the example.

Liu, Peishun; Wang, Xuefang

280

Northern Light Special Edition: Computer Viruses  

NSDL National Science Digital Library

The latest special edition from Northern Light brings together a handy collection of resources on computer viruses, primarily news items and links to related sites. These are grouped in six sections, including current news, US government resources, online reference, anti-virus solutions, and virus writers & hackers. Each section begins with a link to related search returns from Northern Light. While this page is certainly not the end-all resource for virus information, it is a perfectly fine place to begin your search.

281

Sintetizador de Frequencia Digital Directo para um Sistema de Espalhamento de Espectro por Salto em Frequencia (Direct Digital Frequency Synthesiser for Frequency Hopping Spread Spectrum).  

National Technical Information Service (NTIS)

The thesis has a complete study of a direct digital frequency synthesizer, DDFS, for application on frequency hopping spread spectrum systems. The study is developed in three parts: theoretical, software simulation, and hardware implementation. In the the...

F. A. B. Cercas

1988-01-01

282

IMPLEMENTAÇÃO DO PENSAMENTO ENXUTO ATRAVÉS DO PROJETO DO SISTEMA DE PRODUÇÃO NA CONSTRUÇÃO CIVIL IMPLEMENTING LEAN THINKING CONCEPTS THROUGH PRODUCTION SYSTEM DESIGN IN CONSTRUCTION  

Microsoft Academic Search

This paper presents several initiatives used to develop the production system design of a residential project in Fortaleza, Ceará and discusses the benefits reached with the implementation of Lean concepts during the execution of the project. The paper aims to contribute to the literature on the application of the Lean Thinking in the Construction by presenting a case study in

Bruno Pontes Mota

283

Correcao de auto-interacao no formalismo da densidade de spin local: sistemas moleculares. (Correction of auto interaction in the formalism of the local spin density: molecular systems).  

National Technical Information Service (NTIS)

The auto-insertion correction proposed by Perdew and Zunger is introduced in the multiple scattering. The orbital spin relaxation is analyzed and this model is applied to the molecules = CH(sub 4), SiH(sub 4), GeH(sub 4) as well as for the molecular compo...

S. K. Figueiredo

1987-01-01

284

Sistemas agrossilvipastoris e o aumento da densidade de nutrientes para bovinos em pastejo (Agricultural-forestry-pasture systems and nutrient density increase for grazing cattle)  

Microsoft Academic Search

The agroforestry systems can be used for feed production to cattle promoting the activity sustainabilty. The aspects to be known about these production systems refer to concepts, characteristics and classification of agroforestry systems; the interactions between trees and the other system components, specially the tree and pasture interaction; and notions about agroforestry systems planning, implementation and management. At this revision

Francisco Eden Paiva Fernandes

285

Tracking and Treating Mobile Populations. The TB Net System. Migrant Clinicians Network Monograph Series. = El Sistema de Red para la TB.  

ERIC Educational Resources Information Center

A comprehensive tracking and referral network that helps provide continuity of care for mobile populations with active tuberculosis (TB) or TB infection is considered essential for effective treatment of TB. However, the interstate referral system that exists between state health departments has been highly inefficient for serving migrant…

Migrant Clinicians Network, Inc., Austin, TX.

286

Teste Operacional Do Sistema de Aquisicao de Dados Aerotranportado - SODA O Experimento Barra Bonita (Operational Test of the Airborne Data Acquisition System: SODA, the Bara Bonita Experiment).  

National Technical Information Service (NTIS)

The nature of the spectral interaction between radiant energy and the Earth's surface components is very important for the development of Remote Sensing techniques. One of the most effective ways to understand those interactions is through the measurement...

C. A. Steffen F. F. Gama E. M. L. M. Novo

1992-01-01

287

Detecao, Aquisicao e Demodulacao de Sinais em um Sistema de Comunicacao Comacesso Aleatorio (Detection, Acquisition and Signal Demodulation in a Communication System with Random Access).  

National Technical Information Service (NTIS)

The development of a signal processor for the Data Collecting System of the first Brazilian Complete Space Mission is presented. The signals from the data collecting platforms are random both in time and frequency, and are spread over a band of 24 kHz. Th...

L. C. Pacolasobrinho

1988-01-01

288

Orbitas periodicas em sistemas hamiltonianos nao integraveis com dois graus de liberdade. (Periodic orbits in non-integrable hamiltoniam systems with two degrees of freedom).  

National Technical Information Service (NTIS)

We present extensive numerical data concerning the periodic orbits of a non integrable two degrees of freedom hamiltoniam system. These periodic orbits form a one-parameter family and the data are displayed in a plot of energy x period. These orbits exhib...

M. A. M. Aguiar

1987-01-01

289

SISTEMAS DE COLHEITA DA CANA-DE-AÇÚCAR E ALTERAÇÕES NAS PROPRIEDADES FÍSICAS DE UM SOLO PODZÓLICO AMARELO NO ESTADO DO ESPÍRITO SANTO1  

Microsoft Academic Search

A long term (1989-1994) experiment with sugar cane (RB 739735) was carried out, in Linhares, ES, Brazil, in order to evaluate the effect of two systems of sugar cane harvesting: the first with previous burning (burned cane), and the second with crop residue remaining on the soil surface (green cane), on some physical properties of a tableland Yellow Podzolic soil.

MARCOS BACIS CEDDIA; LÚCIA HELENA CUNHA; DOS ANJOS; EDUARDO LIMA; ALEXANDRE RAVELLI NETO

290

Avtomatizirovannaya modul'naya sistema upravleniya i kontrolya ionnogo istochnika KRION-S. (Automatic module system for control of an ion source 'Cryon-S').  

National Technical Information Service (NTIS)

The automatic module system for control of an ionizer 'Cryon-S' using fiber optics links and PC/XT is described. Brief technical characteristics of basic and service optical systems used in the first run for acceleration of nuclei sulfur on the synchropha...

V. P. Ovsyannikov S. G. Reznikov Y. Romanov A. P. Tsarenkov

1993-01-01

291

Variaciones del factor de crecimiento hepatocitario y carga viral del VHC con hemodiálisis. Comparación con terapia con el sistema de recirculación de adsorbentes moleculares (MARS)  

Microsoft Academic Search

Background and aimsThere is evidence that hemodialysis can decrease HCV viral load. Hepatocyte growth factor (HGF) is stimulated by hemodialysis, reaching a peak 15 minutes after the beginning of the hemodialysis session. This factor has been reported to have a possible protective effect against the development of chronic HCV-related liver diseases. MARS therapy has demonstrated effectiveness in patients with a

Guillermina Barril-Cuadrado; Javier Bartolomé-Nebreda; Paz Ruiz-Álvarez; Paloma Sanz-García; Juan Antonio Traver-Aguilar; Rafael Selgas-Gutiérrez; Vicente Carreño-García

2006-01-01

292

Analisi econometrica delle preferenze dei consumatori: un sistema di spesa lineare applicato all'energia. (Econometrics analysis of consumer behaviour: a linear expenditure system applied to energy).  

National Technical Information Service (NTIS)

In economics literature the expenditure system specification is a well known subject. The problem is to define a coherent representation of consumer behaviour through functional forms easy to calculate. In this work it is used the Stone-Geary Linear Expen...

C. Giansanti V. Ferrari

1996-01-01

293

Estudo comparativo do envelhecimento do sistema capilar dos músculos: diafragma e reto anterior do abdome em ratos. Futuro modelo para o estudo de atividade física?  

Microsoft Academic Search

SUMMARY In the present study, the age-related changes of the capillary system were investigated in the diaphragm and rectus abdominis muscles of 1, 8, and 18-month-old rats. The activation patterns of these muscles differ in the sense that the diaphragm is regularly mobi- lized many times at each minute during the entire life of the animal, while the rectus abdominis,

Luiz E. Garcez Leme; Consuelo Junqueira Rodrigues; Aldo Junqueira Rodrigues Jr.; Eurico Thomaz de Carvalho Filho; Mariana Deckers Leme; Tomás P. Leivas

2005-01-01

294

El sistema fonologico del dialecto judeo-espanol de Bulgaria (The Phonological System of the Judeo-Spanish Dialect of Bulgaria)  

ERIC Educational Resources Information Center

The phonetics and phonological system of the Bulgarian Judeo-Spanish dialect is discussed, showing its similarities to and borrowings from modern Spanish and Bulgarian. Treatment of phonemes is analyzed in detail. (Text is in Spanish.) (CK)

Kanchev, Ivan V.

1974-01-01

295

A Handbook for Title I Migrant Parent Advisory Councils: Understanding the System=Un Folleto Para los Concilios de Padres Titulo I Migrante: Entendiendo el Sistema.  

ERIC Educational Resources Information Center

A bilingual handbook for Title I migrant Parent Advisory Councils (PACs) was designed to be used by administrators, teachers, consultants and parents in organizing and training PACs at local, district, and state levels. All information is duplicated in separate English and Spanish sections. The first part discusses the Texas migrant program,…

Arredondo, C.; And Others

296

Sistema LEGO decidato alla modellistica assistita da calcolatore per la simulazione dinamica di processi complessi. (LEGO system for dynamic computerized simulation of complex processes).  

National Technical Information Service (NTIS)

After a brief review of the arguments favouring an always greater diffusion of mathematical models for the study of plant dynamics, this paper presents the modular code, LEGO, developed at the Automation Research Center of ENEL (Italian Electricity Board)...

R. Cori S. Spelta

1988-01-01

297

PODER DE MERCADO E PODER DE CONTRATO jpsouza@uem.br Apresentação Oral-Estrutura, Evolução e Dinâmica do s Sistemas Agroalimentares e Cadeias Agroindustriais  

Microsoft Academic Search

The study of problems inherent to market power exercise, resulting from the pursuit of efficiency, based on Industrial Organization and Ne w Institutional Economics theories, in contractual relationships involving producer and pr ocessor segments in Poultry Agribusiness System in the state of Paraná is explo red in this article. Existing structures and evidences indicates an environment subject to c ontractual

JOSÉ PAULO DE SOUZA; DECIO ZYLBERSZTAJN

298

EFICIÊNCIA PRODUTIVA DE EMPRESAS DA INDÚSTRIA DE ALIMENTOS NO BRASIL Grupo de Pesquisa: Estrutura, Evolução e Dinâmica dos Sistemas Agroalimentares e Cadeias Agroindustriais  

Microsoft Academic Search

Resumo: A indústria de alimentos no Brasil é um setor de g rande importância para a economia brasileira com poucos estudos publicados quanto ao seu desempenho operacional. Este trabalho avalia a eficiência relativa (técnica e de escala) de uma amostra de empresas de diferentes segmentos desta indústria, utilizando-se para tanto o Método DEA. Os segmentos analisados foram: Conglomerados Alimentícios; Óleos

Apresentação Oral-Estrutura; OSCAR TUPY

299

Caso Chernobyl: sus repercusiones en el sistema Internacional sobre responsabilidad civil por danos nucleares. (Chernobyl case: its repercussions on the International System on Civil Liability for Nuclear Damages).  

National Technical Information Service (NTIS)

With the discovery of the Nuclear Energy the world has been development her life the present investigation is based in the accident of the one of the most important Nuclear Power Plant in the world, situated in the Union of Socialist Sovietic Republics. T...

J. L. Gonzalez Guadarrama

1992-01-01

300

Contribuicao AO Estudo de Sistemas de Modulacao Codificada Em Codigos Concatenados (Contribution to the Study of Coded Modulation Systems in Concatenated Codes).  

National Technical Information Service (NTIS)

Coded modulation systems applied to concatenated codes are studied. The analyses of some trellis and block coded modulation schemes are shown and simulations are performed to choose the most suitable internal code for the concatenated scheme. The simulati...

M. A. Chamon

1989-01-01

301

ANÁLISE COMPARATIVA DA APLICAÇÃO DE REDES NEURAIS E SISTEMAS DE INFERÊNCIA DIFUSA NA PREVISÃO DE NÍVEL DO RIO QUARAÍ UTILIZANDO PREVISÃO DE CHUVA  

Microsoft Academic Search

RESUMO --- Bacias hidrográficas com pequenas dimensões, com características de coeficiente de escoamento alto e tempo de pico curto formam cenários que dificultam a utilização de técnicas tradicionais de previsão de nível. A utilização de previsões hidrometeorologicas permite uma ampliação do tempo disponível entre a previsão e a ocorrência do nível previsto, porém acrescentam muita incerteza nos dados de entrada

Fernando Dornelles; Olavo C. Pedrollo; Joel A. Goldenfum

302

Desenvolvimento de Um Sistema Grafico: Um Exemplo No Tracado de Cartas Sinoticas (Development of a Graphic System: Example Using the Outline of Synoptic Charts).  

National Technical Information Service (NTIS)

A system, SINOGRAFO, is described that was developed to trace synoptic charts based on the display of meteorological data for the Brazilian Institute of Space Research. SONOGRAFO was used to trace the contour of South America and international boundaries ...

S. R. M. Pellegrino J. A. G. Pereira

1984-01-01

303

EC++: Uma Linguagem para a Programacao Num Sistema Distribuido Orientado a Objectos (EC++: An Object Oriented Programming Language for a Distributed Operating System).  

National Technical Information Service (NTIS)

Object Oriented has been an evolution factor to ease the burden on distributed systems programming. The authors now see operating systems, programming languages, development environments, information systems, and design models, all of them Object Oriented...

M. D. F. D. Sequeira

1991-01-01

304

V Congresso Brasileiro de Agroinformática, SBI-AGRO Londrina, 28 a 30 de setembro de 2005 SISTEMA ENTOMOLÓGICO DE IDENTIFICAÇÃO DE PRAGAS DA BATATA - SEIPB  

Microsoft Academic Search

Usually, the identification of pests that attack potato crop is made by a not computerized method using entomological keys that correspond to a decision tree. The objective of this work was to develop an Entomological System for Potato Pests Identification - SEIPB - that allowed students, producers and agronomy professionals to make identification of potato pests in a fastest and

JENNIFER KELEN KOS; CAMILA CARNEIRO ALVAREZ DOS SANTOS; MARIA SALETE MARCON; GOMES VAZ; RUI SCARAMELLA FURIATTI; MARCELO GIOVANETTI CANTERI

305

Evite los problemas de la diabetes: Mantenga sano el sistema nervioso (Prevent Diabetes Problems: Keep Your Nervous System Healthy, Number 6 in a Series of 7).  

National Technical Information Service (NTIS)

Too much glucose (sugar) in the blood for a long time can cause diabetes problems. This high blood glucose (also called blood sugar) can damage many parts of the body, such as the heart, blood vessels, eyes, and kidneys. Heart and blood vessel disease can...

2003-01-01

306

Perdas do nitrogŒnio da urØia no sistema solo-planta em dois ciclos de cana-de-aÁœcar (1)  

Microsoft Academic Search

Nitrogen losses of applied urea in the soil-plant system during two sugar cane cycles Abstract†ñ†The objective of this work was to quantify the losses of N from the soil-plant system, in the cane†plant and sugar cane ratoon-cycle. Two experiments were carried out in 220†L-pots filled with sandy soil. In the experiment with cane plant two factors were studied: two types

Paulo Cesar Ocheuze Trivelin; Mauro Wagner de Oliveira; Cesar Vitti

2002-01-01

307

Mobicalc: Um Sistema Integrado E Interativo Para Desenvolvimento de Modelos Administrativos (Mobicalc: An Integrated and Interactive System for Development of Administrative Models).  

National Technical Information Service (NTIS)

The development of a programming system based on the concept of a electronic spreadsheet is presented. The developed system offers the basis for the development of a programming environment scheme based on Logic programming. This scheme is presented.

E. T. Yano

1987-01-01

308

Construcao de um sistema de bobinas magneticas de 13 kG. (Construction of a 13 kG magnetic coil system).  

National Technical Information Service (NTIS)

The construction of magnetic coil system for a 35 GHz gyrotron is reported in great detail. This system is designed to generate a magnetic induction of 13,2 kG over an extension of 13 cm. By using an operating current of about 100 A, it was verified that ...

J. O. Rossi Y. Aso P. J. Castro J. J. Barroso G. O. Ludwig

1991-01-01

309

Influence of Television Receiver Characteristics on a Circular Diffusion Teletext System Influenza Delle Caratteristiche Dei Ricevitori Televisivi Sulle Prestazioni di UN Sistema Teletext a Diffusione Circolare.  

National Technical Information Service (NTIS)

The minimum signal to noise ratios at the input of the television receiver which can assure a preestablished service quality is determined for several operational conditions. The receiver performance in real operation is examined, and the worsening of the...

G. Gallinaro P. Mandarini R. Stanchi

1980-01-01

310

Sistema de micro-irrigacao utilizando gerador CEC-fotovoltaico (Analise tecnica e economica). (Small scale irrigation system using a CEC photovoltaic generator. Technical and economic analysis).  

National Technical Information Service (NTIS)

This work evaluates the benefits brought about by the use of low ratio concentrators coupled to photovoltaic generators. The main application looked for is water pumping for irrigation purposes. Optimization techniques looking for cost reduction are also ...

A. N. Silva Fraga

1989-01-01

311

CULTIVARES DE ALFACE CRESPA EM SISTEMAS SOLTEIRO E CONSORCIADO COM CENOURA PERFORMANCE OF CRISPLEAF LETTUCE CULTIVARS IN SOLE CROP AND INTERCROPPED WITH CARROT  

Microsoft Academic Search

The performance of four crispleaf lettuce cultivars in sole crop and intercropped with carrot in two strip- intercropping systems was evaluated in an experiment carried out from March to June of 2001, in the vegetable garden of the Departament of Plant science of the Universidade Federal Rural do Semi-Árido - UFERSA, Mossoró-RN. The experimental design was of randomized complete blocks

Regina Fernandes da Costa Saldanha; Maria Zuleide de Negreiros; Francisco Bezerra Neto; Rodrigo Albuquerque; Soares Guimarães

312

Uso de biomateriales en medicina regenerativa, aspectos básicos y aplicaciones en el Sistema Nervioso Use of biomaterials in regenerative medicine, basic aspects and applications in the Nervous System  

Microsoft Academic Search

Objective: To analyze some of the physical-chemical and structural most important aspect in the design of bio- materials for tissue repair with an approach to its possible usefulness in the nervous system. Design: We analyzed several studies regarding the synthesis and design of biomaterials for tissue reconstruc- tion by using porous scaffolds, nanostructured systems, and combination of biomaterials and stem

Soria J M; Barcia-González J; Andrades J A; Romero J; Monleón Pradas M

313

Sistema de aspiración-tracción en el tratamiento de la Fasciitis necrotizante del periné * Negative Pressure wound therapy for the treatment of perineal necrotizing fasciitis  

Microsoft Academic Search

Introduction: We discuss five patients treated at our institution. Besides the initial surgical debridement and antibiotic therapy, we used the negative-pressure wound therapy (NPWT) as part of their treatment. Patients and methods: The NPWT device was constructed with off-the-shelf components. After the diagnosis of perineal necrotizing fasciitis was established, all patients underwent surgical debridement of necrotic tissue. The wound was

BLAZENKO PUJADO; E. U. MARILDE; E. U. KARINA; PAULA VIDAL

314

AVALIAÇÃO RADIOGRÁFICA DO DESVIO APICAL APÓS O PREPARO RADICULAR UTILIZANDO O SISTEMA PROTAPER Radiographic evaluation of apical deviation after root canal preparation using system ProTaper  

Microsoft Academic Search

The poupose of this study was to evaluate radiographically the presence of apical deviation after the root canal preparation performed whit manual instruments using manual files Flexofiles and mechanical-rotary system Protaper. For this study, it was used thirty mesiovestibular roots of first superior human molars extracted. They had their curvature degrees determined performing to distribute them in 2 groups, so

Fábio Duarte; Celso Kenji Nishiyama; Renata Pardini Hussne; Renato de Toledo

315

Sistema de dosimetria ambiental basado en LiF : Mg, Ti (LTD-100). (Environmental dosimetry system based on LiF : Mg, Ti (TLD-100)).  

National Technical Information Service (NTIS)

The report presents the various tests carried out to the characterize a thermoluminescence environmental dosimetry systems, using the phosphor LiF:Mg,Ti (TLD-100) in chip form. The holder has been specifically designed in order to obtain simplicity in the...

J. C. Saez

1990-01-01

316

Sistema de cúmulos globulares de la galaxia lenticular NGC 6861: en busca de indicios sobre la formación de las S0s.  

NASA Astrophysics Data System (ADS)

We present a preliminar photometric study of the globular cluster system (GCS), associated to the lenticular galaxy (S0) NGC 6861, which is located in a low density environment (d˜31.8 Mpc). It is based on GEMINI/GMOS images (GS-2010B-Q-2: PI Lilia P. Bassino) in the filters g', r', i' of three fields, one of them centered in the galaxy. We find a large number of GCs candidates and detect the presence of at least two sub-populations of GCs (``blue''/metal-poor and ``red''/metal-rich). The spatial distribution of ``red'' candidates presents a higher concentration toward the galaxy (associated to the bulge?), while the distribution of ``blue'' candidates is more homogeneus over the three fields (associated to the halo?). In the color-magnitud diagram, the ``blue'' GC candidates show a possible mass-luminosity relation, known as ``blue-tilt'', probably detected for the first time in a lenticular galaxy. FULL TEXT IN SPANISH

Escudero, C. G.; Faifer, F. R.; Bassino, L. P.; Calderón, J. P.; Caso, J. P.

317

TRANSFERÊNCIA DE RENDA OU SISTEMA PÚBLICO DE EMPREGO E TRABALHO? RUMO À HARMONIZAÇÃO DAS POLÍTICAS ATIVAS DE MERCADO DE TRABALHO NO MERCOSUL1  

Microsoft Academic Search

Os Estados-membros do Mercosul ratificam, ao longo do século passado, os principais Convênios da Organização Internacional do Trabalho (OIT), referentes às normas trabalhistas; direitos sociais do trabalho; direitos fundamentais no trabalho; e políticas de emprego e de mercado de trabalho. Dessa maneira, as políticas ativas de mercado de trabalho, postas em prática pelos quatro países da região, vêm acompanhando as

Maria Cristina Cacciamali

318

Os partidos trabalhistas no sistema multipartidário: um estudo comparado das trajetórias do PTB (1945-1964) e do PT (1980-2002)  

Microsoft Academic Search

The article discusses the trajectories of Brazilian Labour Parties, comparing the movement, in the ideological spectrum, of PTB (Brazilian Labour Party, between 1945 and 1964) and PT (Workers Party, between 1980 and 2002). We argue that the parties' ideological positions are set by their goals and the strategies they adopt to implement these goals. The nature of the goals depends

Geralda Luiza de Miranda

319

Funcionalidade de sistemas colinergicos em ratos previamente tratados com triiodotironina. (Function of Colinergic systems in rats pre-treated with triiodothyronine).  

National Technical Information Service (NTIS)

In order to investigate the influence of experimental hyperthyroidism on cholinergic activity, rats were injected daily, during 1, 5, 19 or 20 days, with triiodothyronine (0 to 100 ug/kg, s.c.). The hiperthyroidism was evaluated by the decrease of the bod...

O. M. S. Almeida

1990-01-01

320

PÉRDIDA DE DIVERSIDAD FLORÍSTICA ANTE UN GRADIENTE DE INTENSIFICACIÓN DEL SISTEMA AGRÍCOLA DE ROZA-TUMBA-QUEMA: UN ESTUDIO DE CASO EN LA SELVA LACANDONA, CHIAPAS, MÉXICO  

Microsoft Academic Search

We analyzed the effect of intensifying the traditional slash-and-burn system on floristic diversity in order to determi- ne the threshold of frequency and duration of cultivation below which native woody species can be maintained. A total of 39 flo- ristic inventories were conducted in the Northern Region of the Selva Lacandona of secondary vegetation with different ages (AE) and use

SUSANA OCHOA-GAONA; FRANCISCO HERNÁNDEZ-VÁZQUEZ; BERNARDUS H. J. DE JONG; FRANCISCO D. GURRI-GARCÍA

321

Controllable synthesis of monodispersed silver nanoparticles as standards for quantitative assessment of their cytotoxicity.  

PubMed

Silver nanoparticles (Ag NPs) are appealing due to their excellent antibacterial/antivirus properties. At the meantime, the wide applications of Ag NPs as antibacterial/antivirus agents arise the concern of Ag NPs' toxicity. However, quantitative understanding of the cytotoxicity of Ag NPs is minimum since that the Ag NPs in current studies have wide size distributions, in which the size effect of Ag NPs on cytotoxicity was unable to be accurately evaluated. In this work, unprecedentedly monodispersed Ag NPs with sizes of 25, 35, 45, 60 and 70 nm were obtained, respectively, by using an optimized polyol method with poly(vinyl pyrrolidone) (PVP) as surfactant. It was found that the reaction temperature, reaction time, concentration of the surfactant and reactants are playing important roles in determining the size and size distribution of Ag NPs. With the monodispersed Ag NPs as standard samples, the size- and dose- dependent cytotoxicity of Ag NPs against Human lung fibroblast (HLF) cells was accurately accomplished in terms of cell viability, apoptosis and necrosis, reactive oxygen species, etc. We expect that the monodispersed Ag NPs will act as the standard samples for quantitatively characterizing the toxicity of Ag NPs in vitro and in vivo. PMID:22137123

Li, Lun; Sun, Jie; Li, Xiaoran; Zhang, Yan; Wang, Zhaoxu; Wang, Chunren; Dai, Jianwu; Wang, Qiangbin

2012-02-01

322

Evolución de estrellas de Helio  

NASA Astrophysics Data System (ADS)

Podríamos identificar a las estrellas de helio con estrellas Wolf-Rayet (WR) que han perdido su envoltura rica en hidrógeno ya sea porque las mismas pertenecen a sistemas binarios o a través de fuertes vientos estelares. Las WR representan una etapa evolucionaria normal de las estrellas masivas, cuya pérdida de masa es >= 3 × 10-5Msolar/yr y la cual es sufrida por la estrella en un tiempo de escala mucho menor que el tiempo en que se produce la quema del He. Esto garantiza la ``homogeneidad'' de las estrellas de helio para nuestros modelos. Este tipo de estrellas serían posibles progenitores de SN tipo Ib y Ic. Aquí presentamos un estudio sobre la evolución de estrellas de helio a partir de la secuencia principal de helio, pasando por el flash de carbono, hasta agotarlo en la región central; como así también la dependencia con la variable masa y con la pérdida de la misma para distintos tipos de masas. Para tal fin hemos utilizado un código de evolución estelar completo que realiza todas las reacciones de Fowler en forma simultánea. También se han tenido en cuenta los procesos de mezcla convectiva, los principales mecanismos de emisión de neutrinos y los efectos de la pérdida de masa. Las opacidades utilizadas fueron las de Rogers & Iglesias (1992). Debido a la pérdida de masa en este tipo de estrellas, hemos encontrado que los perfiles convectivos, la composición química, las condiciones centrales de temperatura y presión, luminosidad y temperatura efectiva dependen en forma esencial de la velocidad de pérdida de masa adoptada, lo que tendría profundas implicaciones en la evolución posterior de estos objetos.

Panei, J. A.; Benvenuto, O. G.; Althaus, L. G.

323

Person-Centered Challenges to Traditional Psychological Healthcare Systems \\/ Personzentrierte Herausforderungen an die traditionellen Systeme der psychischen Gesundheitsversorgung \\/ Desafíos centrados en la persona a los sistemas de salud tradicionales psicológicos \\/ Défis centrés-sur-la-personne aux systèmes traditionnels de Soins Psychologiques \\/ Os desafios da abordagem centrada na pessoa aos sistemas de saúde tradicionais de psicologia  

Microsoft Academic Search

The tensions between traditional psychological healthcare and person-centered and experiential psychotherapies are reviewed. The following challenges to traditional medical-model dominated systems are proposed: (i) acknowledge and act on the understanding that the struggle for mental health and fulfillment involves addressing and changing the environment; (ii) understand that human beings grow in response to the environment and that growth is the

Pete Sanders

2009-01-01

324

Deep PDF parsing to extract features for detecting embedded malware.  

SciTech Connect

The number of PDF files with embedded malicious code has risen significantly in the past few years. This is due to the portability of the file format, the ways Adobe Reader recovers from corrupt PDF files, the addition of many multimedia and scripting extensions to the file format, and many format properties the malware author may use to disguise the presence of malware. Current research focuses on executable, MS Office, and HTML formats. In this paper, several features and properties of PDF Files are identified. Features are extracted using an instrumented open source PDF viewer. The feature descriptions of benign and malicious PDFs can be used to construct a machine learning model for detecting possible malware in future PDF files. The detection rate of PDF malware by current antivirus software is very low. A PDF file is easy to edit and manipulate because it is a text format, providing a low barrier to malware authors. Analyzing PDF files for malware is nonetheless difficult because of (a) the complexity of the formatting language, (b) the parsing idiosyncrasies in Adobe Reader, and (c) undocumented correction techniques employed in Adobe Reader. In May 2011, Esparza demonstrated that PDF malware could be hidden from 42 of 43 antivirus packages by combining multiple obfuscation techniques [4]. One reason current antivirus software fails is the ease of varying byte sequences in PDF malware, thereby rendering conventional signature-based virus detection useless. The compression and encryption functions produce sequences of bytes that are each functions of multiple input bytes. As a result, padding the malware payload with some whitespace before compression/encryption can change many of the bytes in the final payload. In this study we analyzed a corpus of 2591 benign and 87 malicious PDF files. While this corpus is admittedly small, it allowed us to test a system for collecting indicators of embedded PDF malware. We will call these indicators features throughout the rest of this report. The features are extracted using an instrumented PDF viewer, and are the inputs to a prediction model that scores the likelihood of a PDF file containing malware. The prediction model is constructed from a sample of labeled data by a machine learning algorithm (specifically, decision tree ensemble learning). Preliminary experiments show that the model is able to detect half of the PDF malware in the corpus with zero false alarms. We conclude the report with suggestions for extending this work to detect a greater variety of PDF malware.

Munson, Miles Arthur; Cross, Jesse S. (Missouri University of Science and Technology, Rolla, MO)

2011-09-01

325

Molecular cloning of grass carp (Ctenopharyngodon idellus) T-bet and GATA-3, and their expression profiles with IFN-? in response to grass carp reovirus (GCRV) infection.  

PubMed

Both T-bet and GATA-3, Th1/Th2 lineage-specific transcription factors, play important roles in the development of T cells and Th1/Th2 differentiation. In this study, T-bet and GATA-3 genes were cloned from grass carp (Ctenopharyngodon idellus). The putative primary structure of the polypeptide deduced from the cDNA sequence of grass carp T-bet contained 608 aa, which possessed a T-box DNA binding domain. The putative primary structure of the polypeptide deduced from the cDNA sequence of grass carp GATA-3 contained 396 aa, which possessed two consensus zinc finger domains (C-X(2)-C-X(17)-C-X(2)-C). The YxKxHxxxRP motif, KRRLSA and LMEKs/n sequences were also conserved in this GATA-3. Phylogenetic analysis indicated that grass carp T-bet and GATA-3 group with their known counterparts with zebrafish T-bet and GATA-3 as the closest neighbor, respectively. RT-qPCR results showed that grass carp T-bet gene was highly expressed in head kidney, followed by spleen, and low expressed in gill, liver, kidney, and intestine, while GATA-3 gene was highly expressed in intestine, followed by spleen, and low expressed in gill, liver, kidney, and head kidney. Grass carp is one of the "four important domestic fish" in China and often infected by grass carp reovirus (GCRV). As yet, there is no evidence that T-bet and GATA-3 (Th1/Th2 subsets) are involved in anti-virus immune of teleost fish. In this study, by RT-qPCR, we analyzed the expression dynamics of grass carp T-bet and GATA-3 genes with IFN-? gene in response to GCRV infection for the first time. The expression dynamics showed that three genes might be crucially modulated by in vivo GCRV infection: (1) GCRV mainly induced a T-bet expression profile comparing to the GATA-3 expression, while the higher expression profiles of IFN-? correlated with the up-regulation of T-bet; (2) T-bet/IFN-? and GATA-3 expression changes suggest that in GCRV-infected grass carp, the common immune state of head kidney further heightens, whereas the common physiological state of intestine transforms to an anti-virus immune state. From this finding, we realize that GCRV mainly induces a Th1 response, and Th1 cell-mediated recognition mechanisms play very important roles in anti-virus cellular immune of grass carp. PMID:23108805

Wang, Lu; Shang, Na; Feng, Hong; Guo, Qionglin; Dai, Heping

2013-08-01

326

Genre grammatical et classification nominale  

Microsoft Academic Search

Cet article vise (1) à présenter une analyse du fonctionnement et de la fonction du genre grammatical, comme système de classification nominale, en français moderne et (2) à faire la synthèse des travaux empiriques afférents au rôle des principales caractéristiques du genre dans le comportement langagier des locuteurs francophones. Ce texte comprend cinq parties principales. D'abord, nous rappelons brièvement les

Alain Desrochers

1986-01-01

327

Retos de la Instrumentación de un TLC con EE.UU  

Microsoft Academic Search

Esta presentación fue comisionada por la Red de Integración y Comercio del Diálogo Regional de Política para la Reunión Subregional de los Países Andinos celebrada los diás 30 de junio y 1 de julio de 2005 en Quito. 1. Principales resultados del TLCAN 2. Principales retos en la instrumentación del TLCAN 3. Comentarios

Jaime Zabludovsky

2005-01-01

328

Le parc de logements en 1973 et son évolution depuis dix ans  

Microsoft Academic Search

[fre] Le parc de logements en 1973 et son évolution depuis 1968 par Nicole SELIGMANN. L'enquête sur le logement effectuée par l'INSEE en novembre 1973 a dénombré 20 300 000 logements dont plus de 17100 000 résidences principales. En moyenne annuelle sur la période 1968' à 1973, la construction de résidences principales a été de 422 000 logements dont 227

Nicole Seligmann

1975-01-01

329

Gestión ambiental de la vitivinicultura: aplicación del cuadro de mando  

Microsoft Academic Search

Resumen La vitivinicultura es una de las principales industrias de San Juan, Argentina. En esta provincia existen más de 266 bodegas. Actualmente, existe mayor conciencia, por parte del consumidor, del proceso de elaboración de un producto, desde el punto de vista medioambiental, sobre todo en países como Estados Unidos y el Reino Unido, los cuales son los principales países importadores

Rosa Ana Rodríguez; Gustavo R. Traconis

2012-01-01

330

Como Lo Hago Yo: Mielomeningocele En Bolivia  

PubMed Central

Introducción: Las malformaciones del tubo neural (MTN) representan la segunda causa más frecuente de anomalías congénitas, luego de las cardiopatías. En este grupo se destaca el mielomeningocele (MMC) por su mayor incidencia, y por ser la más incapacitante y la más compleja entre todas las demás malformaciones del sistema nervioso c`entral (SNC). En Bolivia, como en muchos países de Sudamérica, los bajos niveles socio-culturales y la debilidad en el sistema sanitario, hacen que su incidencia y su morbilidad, sean mayores que en las naciones más desarrolladas. Material y Métodos: Se realizó un estudio retrospectivo y descriptivo de 70 casos de MMC, atendidos por un equipo multidisciplinario en el Hospital Universitario Japonés (HUJ) de Santa Cruz de la Sierra, entre 2008-2011. De ellos, 60 fueron intervenidos quirúrgicamente. Resultados: Se realizaron controles prenatales sólo en 27 mujeres (38.6%), diagnosticándose una disrafia espinal en apenas dos casos (7.4%). La edad de ingreso del MMC en su mayoría fue después de las 24 horas (65.6%), predominando su localización en la región lumbosacra (64.3%). De ellos, 67.2% eran abiertos, presentando un 32.9% un daño neurológico motor parcial mientras que 47.1% tenían paraplejia por debajo de la lesión. De los 70 casos, tres (4.3%) no fueron intervenidos, por presentar defectos congénitos severos o estado general grave. Las principales complicaciones posoperatorias inmediatas fueron: dehiscencia de sutura y/o infección de la herida (16.6%), fístula de líquido cefalorraquídeo (LCR) (10%) e infección del SNC (11.7%). La mortalidad general y postoperatoria fue de 7.1% y 3.3%, respectivamente. Al mes de vida presentaban hidrocefalia un 80% de los pacientes operados, colocándose una derivación ventriculoperitoneal (DVP) de presión media. De 9 pacientes que tuvieron un acompanamiento de dos o más años, seis presentaron una médula anclada, que fueron intervenidas quirúrgicamente. Conclusión: En esta serie, el diagnóstico prenatal del MMC fue ocasional y la derivación al HUJ de los recién nacidos con esta malformación fue generalmente tardía. No hubo predominio de género y la mayoría de los casos presentaron sus lesiones en la región lumbar y lumbosacra. La mortalidad general y postoperatoria fue similar a la reportada en la literatura. Pocos enfermos realizaron controles posteriores al alta hospitalaria. Igual que otros países de Sudamérica, las falencias en el sistema público de salud y el nivel sociocultural, son factores determinantes para un mal pronóstico en estos niños. Por sus múltiples complicaciones, el MMC requiere de una especial atención gubernamental, sobre todo de carácter preventivo mediante el uso de ácido fólico en mujeres fértiles, como también de un equipo profesional multidisciplinario, a fin de realizar un tratamiento adecuado y oportuno. Al mismo tiempo, trabajos multicéntricos en hospitales de América Latina, ayudarán al mejor manejo de estos pacientes.

Dabdoub, Carlos F.; Dabdoub, Carlos B.; Villavicencio, Ramiro; Quevedo, German

2014-01-01

331

Relation of streams, lakes, and wetlands to groundwater flow systems  

NASA Astrophysics Data System (ADS)

Surface-water bodies are integral parts of groundwater flow systems. Groundwater interacts with surface water in nearly all landscapes, ranging from small streams, lakes, and wetlands in headwater areas to major river valleys and seacoasts. Although it generally is assumed that topographically high areas are groundwater recharge areas and topographically low areas are groundwater discharge areas, this is true primarily for regional flow systems. The superposition of local flow systems associated with surface-water bodies on this regional framework results in complex interactions between groundwater and surface water in all landscapes, regardless of regional topographic position. Hydrologic processes associated with the surface-water bodies themselves, such as seasonally high surface-water levels and evaporation and transpiration of groundwater from around the perimeter of surface-water bodies, are a major cause of the complex and seasonally dynamic groundwater flow fields associated with surface water. These processes have been documented at research sites in glacial, dune, coastal, mantled karst, and riverine terrains. Résumé Les eaux de surface sont parties intégrantes des systèmes aquifères. Les eaux souterraines interagissent avec les eaux de surface dans presque tous les types d'environnements, depuis les petits ruisseaux, les lacs et les zones humides jusqu'aux bassins versants des vallées des grands fleuves et aux lignes de côte. Il est en général admis que les zones topographiquement hautes sont des lieux de recharge des aquifères et les zones basses des lieux de décharge, ce qui est le cas des grands systèmes aquifères régionaux. La superposition de systèmes locaux, associés à des eaux de surface, à l'organisation régionale d'écoulements souterrains résulte d'interactions complexes entre les eaux souterraines et les eaux de surface dans tous les environnements, quelle que soit la situation topographique régionale. Les processus hydrologiques associés aux eaux de surface elles-mêmes, tels que des niveaux d'eau de surface saisonnièrement hauts et l'évaporation et la transpiration de l'eau souterraine à la périphérie des eaux de surface, sont les causes essentielles de la dynamique complexe et saisonnière des nappes associées aux eaux de surface. Ces processus ont été mis en évidence sur des sites de recherche dans des formations glaciaires, dunaires, littorales, fluviales et de karst couvert. Resumen Los cuerpos de aguas superficiales son partes integrales de los sistemas de flujo subterráneo. El agua subterránea interactúa con la superficial en prácticamente todo tipo de paisajes, desde pequeños torrentes, lagos y humedales, hasta grandes valles fluviales y costas. Aunque se suele asumir que las áreas topográficamente elevadas son zonas de recarga de aguas subterráneas, mientras las áreas topográficamente más bajas lo son de descarga, esto es cierto básicamente para los sistemas de flujo regional. Al superponer los sistemas de flujo local, asociados a los cuerpos de agua superficial, a las condiciones regionales, resultan interacciones complejas, y esto ocurre independientemente de su posición topográfica. Los procesos hidrológicos asociados con los propios cuerpos de agua superficial, como los niveles superficiales máximos estacionales y la evapotranspiración de agua subterránea en los perímetros de cuerpos superficiales, son una de las principales causas de la complejidad y de las variaciones dinámicas de las interacciones entre aguas subterráneas y superficiales. Estos procesos se han documentado en distintas zonas investigadas, incluyendo depósitos glaciares, dunas, áreas costeras, karsts y terrazas fluviales.

Winter, Thomas C.

332

Interaction of nanodiamonds materials with influenza viruses  

NASA Astrophysics Data System (ADS)

The perspectives of the application of modern materials contained nanodiamonds (ND) are considered in this study. The interaction between detonation paniculate ND, soot and influenza A and B viruses, fragments of cDNA were analyzed at the normal conditions. It was shown that these sorbents can interact with the following viruses: reference epidemic strains of influenza A(H1N1), A(H1N1)v, A(H3N2) and B viruses circulated in the word in 2000-2010. The allantoises, concentrated viruses, cDNA can be absorbed by ND sorbents and getting removed from water solutions within 20 min. ND sorbents can be used for the preparation of antivirus filters for water solution and for future diagnostic systems in virology.

Ivanova, V. T.; Ivanova, M. V.; Spitsyn, B. V.; Garina, K. O.; Trushakova, S. V.; Manykin, A. A.; Korzhenevsky, A. P.; Burseva, E. I.

2012-02-01

333

[Four cases of urinary dysfunction associated with sacral herpes zoster].  

PubMed

Herpes zoster is caused by the infection of Varicella-Zoster virus. The anatomical distribution of herpes zoster in the sacral area is only 6. 9%1). Moreover, the onset rate of herpes zoster with urinary dysfunction is 0.6%1). The lesion sites of herpes zoster which cause urinary dysfunction are almost lumber and sacral areas. We describe four cases of sacral herpes zoster with urinary dysfunction in this report. All patients were elderly people (66-84 years old), and all patients were administered anti-virus drugs and alpha 1-adrenergic receptor blockers. Because of urinary retention, three patients have performed clean intermittent self-catheterization (CIC) for several weeks. As the lesions of herpes zoster healed, each patient recovered from urinary dysfunction. PMID:24755820

Matsuo, Tomohiro; Oba, Kojiro; Miyata, Yasuyoshi; Igawa, Tsukasa; Sakai, Hideki

2014-02-01

334

ISOLATION OF CAFFEIC ACID FROM EUPATORIUM ADENOPHORUM SPRENG BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY AND SYNTHESIS OF CAFFEIC ACID-INTERCALATED LAYERED DOUBLE HYDROXIDE.  

PubMed

Preparative high-speed countercurrent chromatography (HSCCC) was successfully used for isolation and purification of caffeic acid from Eupatorium adenophorum Spreng with a solvent system composed of ethyl acetate-methanol-water at a volume ratio of 10:1:10, v/v. Using a preparative unit of the HSCCC centrifuge, about a 938 mg amount of the crude extract was separated, yielding 63.2 mg of caffeic acid at purity of 96.0%. Then, the anti-microbial and anti-virus drug caffeic acid (C(9)H(8)O(4)) was intercalated into layered double hydroxides for the first time by anion exchange under a nitrogen atmosphere. The product caffeic acid-LDH has been characterized by powder X-ray diffraction (XRD), Fourier transform-infrared (FT-IR), Scanning electron micrographs (SEM), indicating that the drug has been successfully intercalated into LDH. PMID:20454592

Wei, Yun; Gao, Yali; Zhang, Kai; Ito, Yoichiro

2010-01-01

335

Design of Cyber Attack Precursor Symptom Detection Algorithm through System Base Behavior Analysis and Memory Monitoring  

NASA Astrophysics Data System (ADS)

More recently, botnet-based cyber attacks, including a spam mail or a DDos attack, have sharply increased, which poses a fatal threat to Internet services. At present, antivirus businesses make it top priority to detect malicious code in the shortest time possible (Lv.2), based on the graph showing a relation between spread of malicious code and time, which allows them to detect after malicious code occurs. Despite early detection, however, it is not possible to prevent malicious code from occurring. Thus, we have developed an algorithm that can detect precursor symptoms at Lv.1 to prevent a cyber attack using an evasion method of 'an executing environment aware attack' by analyzing system behaviors and monitoring memory.

Jung, Sungmo; Kim, Jong Hyun; Cagalaban, Giovanni; Lim, Ji-Hoon; Kim, Seoksoo

336

Bioactive secondary metabolites from marine microbes for drug discovery.  

PubMed

The isolation and extraction of novel bioactive secondary metabolites from marine microorganisms have a biomedical potential for future drug discovery as the oceans cover 70% of the planet's surface and life on earth originates from sea. Wide range of novel bioactive secondary metabolites exhibiting pharmacodynamic properties has been isolated from marine microorganisms and many to be discovered. The compounds isolated from marine organisms (macro and micro) are important in their natural form and also as templates for synthetic modifications for the treatments for variety of deadly to minor diseases. Many technical issues are yet to overcome before wide-scale bioprospecting of marine microorganisms becomes a reality. This chapter focuses on some novel secondary metabolites having antitumor, antivirus, enzyme inhibitor, and other bioactive properties identified and isolated from marine microorganisms including bacteria, actinomycetes, fungi, and cyanobacteria, which could serve as potentials for drug discovery after their clinical trials. PMID:22361200

Nikapitiya, Chamilani

2012-01-01

337

A discrete computer model of the Immune System reveals competitive interactions between the humoral and cellular branch and between cross-reacting memory and na?ve responses  

PubMed Central

In an agent-based computer model, we simulate the formation and recall of anti-virus immunological memory. Specifically we try to predict what will happen, both to the response and to memory, when the second infecting virus is partly different from the first one, and when the cross-reactivity of the two branches of the immune system, humoral and cellular, is asymmetrical, or “split”. The simulations explore systematically epitope distances, and measure all changes in affinity, cellularity and efficiency in clearing the infection. Besides obvious cooperations, they reveal powerful competitions between the branches, and more intriguing, between cross-reacting and new responses when the latter suffer the competition by preformed cell-rich but inefficient clones, as memory, usually an asset, becomes a liability.

Cheng, Yiming; Ghersi, Dario; Calcagno, Claudia; Selin, Liisa K.; Puzone, Roberto; Celada, Franco

2013-01-01

338

[Advance in studies on effective components in wheat bran and their pharmacological activities].  

PubMed

Wheat bran, as the testa of wheat, has a long history of medication. Modern studies have discovered that wheat bran contains dietary fiber, phenolic compounds, proteins, vitamins, minerals and many other compounds, and boasts wide pharmacological activities such as blood glucose reduction, hypertension reduction, lipid reduction, anti-oxidation, anti-bacteria, anti-inflammatory, antivirus, prevention of colon cancer and mutations, immunomodulation and adsorption of heavy metals. With great development and utilization values, wheat bran has long attracted wide attention from Chinese and foreign scholars. The paper summarizes the latest advance in domestic and foreign studies on effective components in wheat bran and their pharmacological effect, and gives a brief introduction of the limiting factors in the comprehensive development and utilization of wheat bran, in order to provide new preference for the development and utilization of abundant wheat bran resources in China. PMID:24761627

Zhang, Yi; Li, Yu; Wang, Jian; Yang, Ya-Li; Yuan, Lv-Jiang

2014-01-01

339

Global dynamics of a novel multi-group model for computer worms  

NASA Astrophysics Data System (ADS)

In this paper, we study worm dynamics in computer networks composed of many autonomous systems. A novel multi-group SIQR (susceptible-infected-quarantined-removed) model is proposed for computer worms by explicitly considering anti-virus measures and the network infrastructure. Then, the basic reproduction number of worm R0 is derived and the global dynamics of the model are established. It is shown that if R0 is less than or equal to 1, the disease-free equilibrium is globally asymptotically stable and the worm dies out eventually, whereas, if R0 is greater than 1, one unique endemic equilibrium exists and it is globally asymptotically stable, thus the worm persists in the network. Finally, numerical simulations are given to illustrate the theoretical results.

Gong, Yong-Wang; Song, Yu-Rong; Jiang, Guo-Ping

2013-04-01

340

A Study on Architecture of Malicious Code Blocking Scheme with White List in Smartphone Environment  

NASA Astrophysics Data System (ADS)

Recently, the interest and demands for mobile communications are growing so fast because of the increasing prevalence of smartphones around the world. In addition, the existing feature phones were replaced by smartphones and it has widely improved while using the explosive growth of Internet users using smartphones, e-commerce enabled Internet banking transactions and the importance of protecting personal information. Therefore, the development of smartphones antivirus products was developed and launched in order to prevent malicious code or virus infection. In this paper, we proposed a new scheme to protect the smartphone from malicious codes and malicious applications that are element of security threats in mobile environment and to prevent information leakage from malicious code infection. The proposed scheme is based on the white list smartphone application which only allows installing authorized applications and to prevent the installation of malicious and untrusted mobile applications which can possibly infect the applications and programs of smartphones.

Lee, Kijeong; Tolentino, Randy S.; Park, Gil-Cheol; Kim, Yong-Tae

341

The Unknown Computer Viruses Detection Based on Similarity  

NASA Astrophysics Data System (ADS)

New computer viruses are continually being generated and they cause damage all over the world. In general, current anti-virus software detects viruses by matching a pattern based on the signature; thus, unknown viruses without any signature cannot be detected. Although there are some static analysis technologies that do not depend on signatures, virus writers often use code obfuscation techniques, which make it difficult to execute a code analysis. As is generally known, unknown viruses and known viruses share a common feature. In this paper we propose a new static analysis technology that can circumvent code obfuscation to extract the common feature and detect unknown viruses based on similarity. The results of evaluation experiments demonstrated that this technique is able to detect unknown viruses without false positives.

Liu, Zhongda; Nakaya, Naoshi; Koui, Yuuji

342

Logistic model for determining factors associated with HIV infection among blood donor candidates at the Funda??o HEMOPE  

PubMed Central

Objective To determine factors associated with HIV infection in blood donor candidates in Recife, Brazil. Methods A transversal study was performed of 106,203 blood donor candidates found eligible by the routine clinical screening process in the blood bank in Recife of the Fundação de Hematologia e Hemoterapia de Pernambuco (HEMOPE) in the period from January 1998 to November 2003. Additional indirect immune and western blot confirmation tests for HIV infection were performed and the candidates were classified as HIV positive or negative. The Chi-squared test and stepwise multiple logistic regression were conducted to examine any association between HIV infection and age, gender, place of residence, schooling, number of donations and serological tests for core hepatitis B antigen virus (anti-HBc), the hepatitis C antivirus (anti-HCV), human T-type antivirus lymph cells (anti-HTLV 1 and 2), serological tests for syphilis (VDRL) and the hepatitis B virus surface antigen (HBsAg). Results In the observed sample, 0.204% of blood donor candidates were found to be HIV positive. Among the studied variables, the age, education level, residency, donation type, and serologic status for anti-HBc and VDRL tests were found to be associated with HIV infection. Conclusions The younger, spontaneous donor candidates living in the Recife metropolitan area with a low level of education and positive for anti-HBc and VDRL have an higher risk of HIV infection than the other candidates. Data such as these are useful to understand the dynamics of infection and to guide healthcare policies.

Queiroz, Niedja Maristone Barreto; Sampaio, Divaldo de Almeida; Santos, Eufrazio de Souza; Bezerra, Ana Cristina de Souza

2012-01-01

343

Um modelo computacional para determinacao de alternativas de expansao de custo minimo em planejamento de sistemas de transmissao. (A computational model for determining the minimal cost expansion alternatives in transmission systems planning).  

National Technical Information Service (NTIS)

A computational model for determining an economical transmission expansion plan, based in the decomposition techniques is presented. The algorithm was used in the Brazilian South System and was able to find an optimal solution, with a low computational re...

L. M. V. Pinto M. V. F. Pereira A. Nunes

1989-01-01

344

Calculo do custo marginal de producao de energia em sistemas hidrotermoeletricos levando em consideracao a rede de transmissao. (Marginal cost calculation of energy production in hydro thermoelectric systems considering the transmission system).  

National Technical Information Service (NTIS)

The alternatives for calculation of energy marginal cost in hydroelectric systems, considering the transmission one, was analysed, including fundamental concepts; generation/transmission systems, represented by linear power flow model; production marginal...

M. V. F. Pereira B. G. Gorenstin S. Alvarenga Filho

1989-01-01

345

EVALUACIÓN DEL IMPACTO DEL CAMBIO CLIMÁTICO SOBRE EL VALOR ECONÓMICO DEL SUELO EN SISTEMAS AGRÍCOLAS DE CHILE Evaluation of the impact of climate change on the economical value of soil in agricultural systems in Chile  

Microsoft Academic Search

The climatic change would affect yield and management of crops. To the year 2050 the mean temperature would increase 1.5 ºC; at year 2100 between 1.0 to 3.5 ºC. In Chile there are few studies of this area. At international level are estimated changes in temperate and tropical zones that would affect negatively, for example, wheat (Triticum vulgare L.) and

346

Red de Telefonia Celular y Sistema de Radiolocalizadores con Cubrimiento Nacional. Informe Final. Tarea 3. Diseno (Cellular Telephone Network and System for Radio Location with National Coverage. Final Report. Work 3. Design).  

National Technical Information Service (NTIS)

The report, written in Spanish, is the result of a Feasibility Study conducted on the Cellular Telephone Network and System for Radio Location with National Coverage in Colombia. The principal objective of the report was to develop a detailed design for t...

1992-01-01

347

PÉRDIDA DE SUELO, AGUA Y NUTRIENTES EN UN ACRISOL BAJO DIFERENTES SISTEMAS AGRÍCOLAS EN MICHOACÁN, MÉXICO * SOIL, WATER AND NUTRIENT LOSSES IN AN ACRISOL UNDER DIFFERENT AGRONOMIC SYSTEMS IN MICHOACAN, MEXICO  

Microsoft Academic Search

2 Campo Experimental Uruapan, INFAP, 3 IRD-Francia. 4 Instituto de Recursos Naturales. Colegio de Postgraduados. § Autor para correspondencia: ABSTRACT In the upper part of Cuitzeo Lake watershed, Michoacan, Mexico, farmers use a traditional short-fallow production system. With this system, land is sown one year, and left without cultivation from one to three years for grazing. This system is used

Lenin Ejecatl; Medina Orozco; Miguel Bravo Espinosa; Christian Prat; Mario Martínez Menes; Enrique Ojeda Trejo; Blanca Estela; Serrato Barajas

2008-01-01

348

Application of the BCD classification system for B-type stars in NGC 4755. Aplicación del <span class="hlt">sistema</span> de clasificación BCD a estrellas B en NGC 4755</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We have applied the BCD spectrophotometric classification system to B-type stars belonging to the open cluster NGC 4755. We have determined their fundamental parameters, which helped to estimate the distance modulus, color excess, and age of the cluster.</p> <div class="credits"> <p class="dwt_author">Aidelman, Y.; Cidale, L.; Zorec, J.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">349</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE92636526"> <span id="translatedtitle">Simulacion hidraulica de los <span class="hlt">sistemas</span> de una central nuclear para el calculo de cargas en canerias. (Hydraulic simulation of the systems of a nuclear power plant for charges calculation in piping).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">This work presents a general description of the methodology used by the ENACE S.A. Fluids Working Group for hydraulics simulation of a nuclear power plant system for the calculation charges in piping. (Author). (Atomindex citation 23:054231)</p> <div class="credits"> <p class="dwt_author">N. Masriera</p> <p class="dwt_publisher"></p> <p class="publishDate">1990-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">350</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE96609603"> <span id="translatedtitle">Empleo del <span class="hlt">sistema</span> EGS4 para la evaluacion de la contaminacion electronica en un haz de telecobaltoterapia. (Use of EGS4 codes system for the evaluation of electron contamination in telecobalt therapy unit).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The cobalt 60 beams employed radiotherapy usually have some electron contamination, mainly depending on the selected field size, the diaphragm-skin distance and the collation system features. The electron component of a thyratron 780C cobalt unit was eval...</p> <div class="credits"> <p class="dwt_author">B. Bernal R. Alfonso</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">351</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2007103645"> <span id="translatedtitle">Evolucion del <span class="hlt">Sistema</span> de Financiacion de la Vivienda en EE.UU: Panorama Historico y Leccioines (Evolution of the U.S. Housing Finance System: A Historical Survey and Lessons for Emerging Mortgage Markets).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">In the past 180 years, the U.S. housing finance system (HFS) has evolved from an informal/communal institutional arrangement to one of the most well-functioning and extensive financial intermediation systems in the world. This evolution did not develop in...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">352</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.tecnicapecuaria.org.mx/trabajos/200706045026.pdf"> <span id="translatedtitle">Evaluación de un <span class="hlt">sistema</span> de enfriamiento aplicado en el periodo seco de ganado lechero durante el verano Evaluation of a cooling system used in the dry period of dairy cattle in summer</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In order to determine some physiological responses 60 d prepartum and production responses postpartum to a cooling system in summer, 24 multiparous Holstein cows were allocated to two groups: one group with (n=12) and a second group without (n=12) cooling. Cooled cows showed a lower (P<0.05) respiration rate (77.5 vs 83.7 breaths\\/min) and rectal temperature (39.1 vs 39.3 °C) in</p> <div class="credits"> <p class="dwt_author">Leonel Avendaño Reyes; Francisco Daniel Álvarez Valenzuela; Abelardo Correa Calderón</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">353</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=N8922014"> <span id="translatedtitle">Progettazione, Realizzazione e Test Assistiti da Calcolatore di un Riflettore Shaped Per un <span class="hlt">Sistema</span> di Controllo del Trafico Aereo (Design, Implementation and Computer Aided Tests of a Shaped Reflector for an Air Traffic Control System).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The use of computer aided methods to perform and optimize a reflector is described. The reflector is to be used in a mobile sheltered system. The description includes characterization of the illuminator, surface synthesis, profile definition, computer aid...</p> <div class="credits"> <p class="dwt_author">G. Ascione U. F. Delia</p> <p class="dwt_publisher"></p> <p class="publishDate">1988-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">354</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2010102924"> <span id="translatedtitle">OKkio alla SALUTE: <span class="hlt">Sistema</span> di Sorveglianza su Alimentazione e Attivita Fisica nei Bambini della Scuola Primaria. Risultati 2008. (OKkio alla SALUTE: Surveillance System on Nutrition and Physical Activity in Children Attending Primary School. Results 2008).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">OKkio alla SALUTE is part of the project 'Promotion of healthy lifestyle and growth in primary school children', promoted by the Italian Ministry of Health/Centre for Disease Control in collaboration with the Ministry of Education and coordinated by the I...</p> <div class="credits"> <p class="dwt_author">A. Lamberti A. Spinelli D. Galeone G. Baglio S. Andreozzi</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">355</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://redalyc.uaemex.mx/redalyc/pdf/761/76102205.pdf"> <span id="translatedtitle"><span class="hlt">SISTEMA</span> DE ESTRATEGIAS BASADAS EN LA CREATIVIDAD E INTELIGENCIA EMOCIONAL PARA PROMOVER UN CAMBIO CULTURAL EN EL INSTITUTO PEDAGÓGICO DE MIRANDA JOSÉ MANUEL SISO MARTÍNEZ U.P.E.L</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The purpose was to promote a change of organizational culture guided to the consolidation of an identity that facilitates the managerial administration in the I.P.M.J.M.S.M. Among the objectives it can stand out: (to) to Characterize the Organizational Culture (b) to Identify the dimensions that will activate the change (c) to Understand that Creativity and Emotional Intelligence are elements of change</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">356</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.sober.org.br/palestra/13/434.pdf"> <span id="translatedtitle">PERCEPÇÃO E IMPORTÂNCIA DAS RELAÇÕES DE COOPERAÇÃO PARA MICROEMPRESAS DO SETOR DE MÁQUINAS E EQUIPAMENTOS AGRÍCOLAS NO MUNICÍPIO DE ITÁPOLIS-SP tupy@cppse.embrapa.br Apresentação Oral-Estrutura, Evolução e Dinâmica do s <span class="hlt">Sistemas</span> Agroalimentares e Cadeias</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Inter organizational relationships acquired great i mportance on the competitiveness of the corporations. Sharing activities can generate compe titive advantages if the result is a smaller cost than non sharing activities cost and will brin g a final product upgrade, adding value which</p> <div class="credits"> <p class="dwt_author">OSCAR TUPY; VALSIR ALEXANDRINO JÚNIOR</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">357</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58395915"> <span id="translatedtitle">O ciclo do café durante a República Velha: uma análise com a abordagem de dinâmica de <span class="hlt">sistemas</span> [Coffe cycle during the Old Republic: analysis with a system dynamics approach</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The purpose of this work is to perform a systemic analysis of coffee production in Brazil in the period 1900-1930. The motivation to use system dynamics is that such methodology seems especially suitable to model processes subject to dynamic complexity, such as commodity cycles. Firstly, it will be shown that modeling and simulating the dynamics of coffee production in Brazil</p> <div class="credits"> <p class="dwt_author">Thiago Caliari; Newton Paulo Bueno</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">358</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.sober.org.br/palestra/13/1061.pdf"> <span id="translatedtitle">A Contribuição da Economia das Convenções para o Entendimento sobre a Coordenação de Arranjos Produtivos na Pecuária de Corte Grupo de pesquisa: Estrutura, Evolução e Dinâmica dos <span class="hlt">Sistemas</span> Agroalimentares e Cadeias Agroindustriais</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The formation of a great number of networks based i n cooperation relations has questioned of the factors that can contribute for the success of such enterprises. Amongst the factors that help to understand the development of networks the coordination between the participants is of great importance. This article h ad as objective to identify which mechanisms of coordination used</p> <div class="credits"> <p class="dwt_author">CAXIAS DO SU</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">359</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.sober.org.br/palestra/13/942.pdf"> <span id="translatedtitle">ORIGENS DA FORMAÇÃO AGRÁRIA SUL RIO-GRANDENSE NO CONTEXTO BRASILEIRO lovois@ufrgs.br Apresentação Oral-Estrutura, Evolução e Dinâmica do s <span class="hlt">Sistemas</span> Agroalimentares e Cadeias Agroindustriais</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Resumo Partindo-se do pressuposto que a dinâmica do desenvolvimento rural de uma região é historicamente orientada, impõe-se a neces sidade de um aprofundado conhecimento acerca dos processos que contribuíram para a sua formação agrária. Neste sentido, o presente trabalho tem como objetivo inci tar a uma reflexão sobre a questão agrária e como ela tem condicionado a dinâmica do desenvolvimento</p> <div class="credits"> <p class="dwt_author">TANICE ANDREATTA; LEONARDO ALVIM BEROLDT; ELVIS ALBERT; ROBE WANDSCHEER; LOVOIS DE ANDRADE</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">360</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/52647332"> <span id="translatedtitle">On the dynamics of a double cluster system and the clusters h and X Persei (Spanish Title: La dinámica de un <span class="hlt">sistema</span> doble de cúmulos y el cúmulo doble en Perseo)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In the present investigation we attempt to determine whether h and X Persei are physically related. An attempt in this direction is made by examining the dynamical consequences of the proximity of the two clusters. We find that the real distance between the centers of the clusters is around 17 parsecs.</p> <div class="credits"> <p class="dwt_author">P. Pismis</p> <p class="dwt_publisher"></p> <p class="publishDate">1953-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_17");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' 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class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_18");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' href="#">4</a> <a onClick='return showDiv("page_5");' href="#">5</a> <a onClick='return showDiv("page_6");' href="#">6</a> <a onClick='return showDiv("page_7");' href="#">7</a> <a onClick='return showDiv("page_8");' href="#">8</a> <a onClick='return showDiv("page_9");' href="#">9</a> <a onClick='return showDiv("page_10");' href="#">10</a> <a onClick='return showDiv("page_11");' href="#">11</a> <a onClick='return 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onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">361</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://blogs.sistemico.org/ricardo/wp-content/uploads/2006/08/hacia%20un%20mirar%20formato%202004.pdf"> <span id="translatedtitle">Hacia un mirar Latinoamericano de la aplicación de la Dinámica de <span class="hlt">Sistemas</span> en estudios organizacionales (Towards a Latin American View of the Application of System Dynamics in Organizational Studies)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">This article inquiries the following question: how should be the use of System Dynamics in Latin American organizations? Its answer begins with an interpretative work on the current field of the System Dynamics' organizational applications which led to build a classifier schema on system-dynamicist praxis styles.</p> <div class="credits"> <p class="dwt_author">Ricardo Sotaquirá Gutiérrez; José Daniel Cabrera Cruz; Gélvez Pinto</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">362</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58017688"> <span id="translatedtitle">Estrutura, Evolucao e Dinamica dos <span class="hlt">Sistemas</span> Agroalimentares e Cadeias Agroindustriais Analise das estrategias de posicionamento e diferenciacao dos produtos no mercado a partir do caso da empresa Bertin alimentos</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Análise das estratégias de posicionamento e diferenciação dos produtos no mercado a partir do caso da empresa Bertin alimentos que é muito competitivo, tanto local, regional, quanto nacional. A proposta do artigo é mostrar como algumas estratégias adotadas pela empresa foram bem sucedidas e diferenciam seus produtos das ofertas concorrentes, adquirindo assim, características desejadas pela maioria dos consumidores. --------------------------------------------------------------- With</p> <div class="credits"> <p class="dwt_author">Ronney Marcio Faial Silva; Gisleide Lima da Silva; Maria Do Rosario Alves Pereira; Cyntia Meireles de Oliveira; Daniel Ferreira da Silva</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">363</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58395909"> <span id="translatedtitle">O modelo de Solow-Swan na linguagem de dinâmica de <span class="hlt">sistemas</span>: uma aplicação para o Brasil [The Solow-Swan model in the system dynamics language: an application for Brazil</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">This paper aims at contributing to the Brazilian economic growth discussion based on a new approach: system dynamics. Specifically, we intend to develop a systemic version of Solow-Swan model which allows the exploration of new angles of some important insights from recent Brazilian studies using that model and the assessment of the ability of the economy to grow in the</p> <div class="credits"> <p class="dwt_author">Newton Paulo Bueno</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">364</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://redalyc.uaemex.mx/redalyc/pdf/496/49612069023.pdf"> <span id="translatedtitle">CONCEPTUALIZACIÓN Y ANÁLISIS DE UN <span class="hlt">SISTEMA</span> MULTI-AGENTE PEDAGÓGICO UTILIZANDO LA METODOLOGÍA MAS-COMMONKADS CONCEPTUALIZATION AND ANALYSIS OF A PEDAGOGICAL MULTI-AGENT SYSTEM USING MAS-COMMONKADS METHODOLOGY</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In this paper is presented the conceptualization and analysis of a pedagogical multi-agent system (MAS) using the methodology MAS-CommonKADS; which is one of the most renowned methodologies for MAS modeling. The purpose of the conceptualization phase is understanding the problem, identifying the active and passive actors, and also making the requirements that allow us formulating some objectives to generate the</p> <div class="credits"> <p class="dwt_author">JOVANI ALBERTO</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">365</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=AD639539"> <span id="translatedtitle">Permanenza Del Ritmo Teta Ippocampico Durante Il Sonno Profondo Del Gatto, Dopo Lesioni Del <span class="hlt">Sistema</span> Mesencefalo-Limbico (Persistence of the Hippocampal theta Rhythm During Deep Sleep in the Cat Following Lesions of the Mesencephalic-Limbic System).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">It has been stated by other investigators that the characteristic theta waves present in th hippocampus of cats during deep sleep are evoked by electrical impulses ascending the mesencephalic-limbic pathways. After making extensive lesions in these pathwa...</p> <div class="credits"> <p class="dwt_author">G. Carli A. Zanchetti</p> <p class="dwt_publisher"></p> <p class="publishDate">1964-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">366</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.sbiagro.org.br/pdf/v_congresso/Trabalho88.pdf"> <span id="translatedtitle">V Congresso Brasileiro de Agroinformática, SBI-AGRO Londrina, 28 a 30 de setembro de 2005 <span class="hlt">SISTEMA</span> DE APOIO À DECISÃO AO PLANEJAMENTO DAS TÉCNICAS DE PERCURSO NO PROCESSO DE SEMEADURA E PULVERIZAÇÃO</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The study of trajectories combination accomplished by the machines in the crop fields, aiming to the economy of costs, is valuable in a rational mechanization program. Analyzinh this context, the present work has the purpose of being a support tool to decision in the planning of agricultural operations. The programming language Borland Delphi? 7.0 and the database Interbase were used</p> <div class="credits"> <p class="dwt_author">RODRIGO YUITI INOUE; LUCIANA VILAS BOAS WIECHETECK; ALAINE MARGARETE GUIMARÃES; ALTAIR JUSTINO</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">367</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=evaluacion&pg=2&id=ED066950"> <span id="translatedtitle">Primera Reunion de la Comision Nacional de Analisis y Evaluacion del <span class="hlt">Sistema</span> Educativo: Informe Final (The First Meeting of the National Committee for Analysis and Evaluation of the Educational System: Final Report).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">This document contains the legislation creating the National Committee for Analysis and Evaluation of the Educational System and the final report of that committee's first meeting. The report deals with each level from elementary to higher education. For each level it describes and considers curriculum, school buildings, human resources, current…</p> <div class="credits"> <p class="dwt_author">Ministerio de Cultura y Educacion, Buenos Aires (Argentina). Centro National de Documentacion e Informacion Educativa.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">368</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB93209468"> <span id="translatedtitle">Estudio de Factibilidad de un <span class="hlt">Sistema</span> Agroindustrial. Annexo 1. Estudio de Pre-Factibilidad par Brocoli y Coliflor Congelados (Pre-Feasibility Study for Frozen Brocoli, Cauliflower, Sweet Corn in Cans, Green Peas and Sweet Corn).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The report, written in Spanish, presents the results of a feasibility study prepared for the Secretary of Agriculture, Livestock, and Fishing of the Argentine Republic. The volume of the report focuses on frozen and canned vegetables in the following cont...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">1993-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">369</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://cbpv.com.br/rbpv/documentos/1842009/rbpv_v18n4_a07.pdf"> <span id="translatedtitle"><span class="hlt">Sistema</span> de pastejo, rotenona e controle de parasitas em bovinos cruzados: efeito no ganho de peso e no parasitismo Grazing systems, rotenone and parasites control in crossbred calves: effect on live weight gain and on parasites burdens</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Practices for endo and ectoparasite control in beef cattle were evaluated in two independent experiments. First, the effects of rotenone® on Rhipicephalus (Boophilus) microplus ticks were evaluated in vitro and in experimentally infected calves. In the second trial, the effects of grazing systems associated with endo and ectoparasite treatments on parasite burden and weight gain of naturally parasited animals were</p> <div class="credits"> <p class="dwt_author">João B. Catto; Ivo Bianchin; Jânio M. Santurio; Gelson L. D. Feijó; Armindo N. Kichel; José M. da Silva</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">370</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pgmacline.es/revpatologia/volumen41/vol41-num4/pdf%20patologia%2041-4/41-04-06.pdf"> <span id="translatedtitle">Valoración pronóstica del carcinoma ductal infiltrante mamario en PAAF. Estudio comparativo de tres <span class="hlt">sistemas</span> de graduación citológica Prognostic evaluation of invasive ductal carcinoma of the breast by fine needle aspiration biopsy. Comparative study of three cytological grading systems</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">SUMMARY We have evaluated three different systems of cytologic grading based in morphological parameters in order to define the Cytological Grade (CG) making a correlation with the Histological Grade (HG), Histological Cytological Grade (HCG) and the Histological Mitotic Index (HMI) in 366 FNA biopsies from surgical specimens of the breast without fixation diagnosed as invasive ductal carcinoma. The sensitivity and</p> <div class="credits"> <p class="dwt_author">Francisco Javier Torres Gómez; Luis Felipe Calle Cruz; Francisco Javier Torres Oliver</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">371</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB92159003"> <span id="translatedtitle">Modelacao de Combustao, Transferencia de Calor e Emissao de Poluentes em <span class="hlt">Sistemas</span> de Queima de Combustiveis Liquidos (Modelling of Combustion, Heat Transfer and Release of Pollutants in Chemical Systems for Combustible Liquids).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The study is concerned with the prediction of the fluid flow, combustion, heat transfer and pollutant emissions in liquid fueled systems. First, a three dimensional numerical solution technique is used to calculate the combustion chamber, the glass tank a...</p> <div class="credits"> <p class="dwt_author">V. S. de Almeida Semiao</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">372</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=%22Managerial+Functions%22&pg=2&id=ED228028"> <span id="translatedtitle">Pautas para Organizar Una Actividad de Capacitacion: Un Seminario-Taller para el Desarrollo de Personal de Direccion de <span class="hlt">Sistemas</span> Educativos (Guidelines to Organize a Training Activity: A Workshop for Management Development of Educational Systems).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">Often personnel performing managerial functions within educational systems are educators with almost no training in management. This paper presents ideas on how to organize a training activity intended to develop management knowledge and skills among educational systems officials and to implement an organizational self-study on management…</p> <div class="credits"> <p class="dwt_author">Valle, Victor M.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">373</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www4.ensp.fiocruz.br/biblioteca/dados/txt_576823951.pdf"> <span id="translatedtitle">O mix público-privado no <span class="hlt">Sistema</span> de Saúde Brasileiro: financiamento, oferta e utilização de serviços de saúde The public-private mix in the Brazilian Health System: financing, delivery and utilization of health services</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">This paper analyzes the public-private mix in the Brazilian Health System from the per- spective of health care delivery, utilization and financing. Moreover, this quantitative study based on secondary data from official databases contem- plates the subsidies granted by the government to the private sector. It shows the existence of some inequalities favoring the population having pri- vate health plans,</p> <div class="credits"> <p class="dwt_author">Isabela Soares Santos; Maria Alicia Dominguez Ugá; Silvia Marta Porto</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">374</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://geomatica.unipv.it/autec/premio%202007/cristina%20bonfanti.pdf"> <span id="translatedtitle">MISURA, DOCUMENTAZIONE, RAPPRESENTAZIONE: STUDI PER L'ORGANIZZAZIONE DI UN <span class="hlt">SISTEMA</span> INFORMATIVO REFERENZIATO. L'INSULA 104 NELLA REGIO VIII DELL'ANTICA CITTA' DI HIERAPOLIS DI FRIGIA (TURCHIA)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Nel campo delle tematiche archeologiche, le potenzialità che provengono dallo sviluppo informatico e dalle reti di telecomunicazioni hanno condotto ad un'azione sempre più interdisciplinare ai fini della documentazione, archiviazione e comunicazione delle attività coinvolte in un quadro di tutela, conservazione e valorizzazione dei beni. L'avvicinamento dell'Archeologia alla Geomatica e agli strumenti di gestione dei dati spaziali, e viceversa, è sentito</p> <div class="credits"> <p class="dwt_author">C. Bonfanti</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">375</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2008112940"> <span id="translatedtitle"><span class="hlt">Sistema</span> di Sorveglianza PASSI (Progressi Delle Aziende Sanitarie per la Salute in Italia) (PASSI (Progressi Delle Aziende Sanitarie per la Salute in Italia): An Italian Behavioral Risk Factor System).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">Lifestyle plays an important role in the development of non-communicable chronic diseases, which contribute significantly to the burden of disease in Europe. In 2006, the Centre for Disease Control and Prevention at the Italian Ministry of Health (MoH) en...</p> <div class="credits"> <p class="dwt_author">B. De Mei G. Fontana N. Binkin S. Baldissera V. Minardi</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">376</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=N9511160"> <span id="translatedtitle">Modelagem de Radiancias Emergentes Do <span class="hlt">Sistema</span> Terra-Atmosfera Para Calibracao de Imageadores No Visivel (Upwelling Radiance Modelling from the Earth-Atmosphere System for Calibration of Sensors in the Visible Channel).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">In this work, physical-mathematical shortwave radiative transfer models were used to estimate the top of the atmosphere upwelling radiances for clear skies (MTR-CA) and stratiform cloud covered (MTR-CN) conditions. The main objective was the vicarious cal...</p> <div class="credits"> <p class="dwt_author">E. J. Debritobastos</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">377</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2008112958"> <span id="translatedtitle">AR-ISS: <span class="hlt">Sistema</span> di Sorveglianza Dell'Antibiotico-Resistenza Basato su Laboratori Sentinella (2003-2005) (AR-ISS: Antibiotic Resistance Surveillance System Based on a Laboratory Network (2003-2005)).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The antibiotic resistance surveillance (AR-ISS) of the Istituto Superiore di Sanita (ISS, the National Institute of Health in Italy) was established to study the emergence and the spread of antibiotic resistance at a national level. The AR-ISS network was...</p> <div class="credits"> <p class="dwt_author">A. Pantosti F. D'Ancona M. Ciofi M. Monaco V. Alfonsi</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">378</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.scielo.cl/pdf/gayana/v67n1/art10.pdf"> <span id="translatedtitle">RELACION ENTRE CARACTERISTICAS DEL TRACTO DIGESTIVO Y LOS HABITOS ALIMENTARIOS DE PECES DEL RIO YUCAO, <span class="hlt">SISTEMA</span> DEL RIO META (COLOMBIA) RELATIONSHIP BETWEEN DIGESTIVE TRACT CHARACTERISTICS AND DI ETS OF FISHES FROM YUCAO RIVER, META RIVER SYSTEM (COLOMBIA)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Stomach contents of 21 species of fishes catched in two sites of Yucao river on different periods of the year were analyzed. Digestive structures were classified according to the mouth position, stomach and teeth form, intestine length and gill rakers number. These characteristics were related with generalized four food habits: detritivorous, herbivorous, periphyton feeders and omnivorous. Teeth and stomach shapes</p> <div class="credits"> <p class="dwt_author">René M. Sánchez; Germán Galvis; Pedro F. Victoriano</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">379</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://marte.dpi.inpe.br/col/dpi.inpe.br/sbsr@80/2008/11.14.09.37/doc/3347-3354.pdf"> <span id="translatedtitle">Avaliação da neotectônica no município de Angra dos Reis, setor sul-fluminense da Serra do Mar, com base em mapas morfométricos gerados em <span class="hlt">Sistemas</span> de Informações Geográficas (SIG)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Morphotectonic maps applied in neotectonics analysis was first used in 60´s and, since then, methods of evaluation of morphometric parameters have been constantly improved with the development of new techniques. In this study, the influence of the Cenozoic tectonics on the landscape dynamics is evaluated in Angra dos Reis city, based on the analysis of the correlation between morphometric (base</p> <div class="credits"> <p class="dwt_author">Elizete Domingues Salvador; Jorge Pimentel</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">380</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE94635417"> <span id="translatedtitle">La experiencia de CNEA (Comision Nacional de Energia Atomica) en prepararse para el <span class="hlt">sistema</span> nacional de acreditacion de laboratorios. (CNEA's (Comision Nacional de Energia Atomica) experience in the preparation of a national system for laboratory accreditation).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">Within the regional markets, as it is the case of MERCOSUR, the laboratories which are suppliers of test and calibration results, are mutually recognized through the National Accreditation Systems. In Argentina there is a project to create a Center for th...</p> <div class="credits"> <p class="dwt_author">N. H. Piacquadio T. A. Palacios V. A. Casa J. H. Koll</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_18");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' 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onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">381</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE95631631"> <span id="translatedtitle">Um criterio alternativo para determinacao do suprimento de energia e demanda baseada na otimizacao a custos marginais de <span class="hlt">sistemas</span> hidrotermicos interligados, com enfoque de usinas individualizadas, aplicado ao <span class="hlt">sistema</span> interligado das regioes Sul e Sudeste do Brasil. (An alternative rule for determining demand and energy supply based in marginal cost optimization from interconnected hydrothermal systems, focalizing the individualized plants, applied to the interconnected system from South and Southeast regions of Brazil).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">A methodology for determining optimal strategies of energy supply in the interconnected system from South and Southeast regions of Brazil is presented. The problem was modelled, having as principle the minimization of operation pluri annual cost. The dyna...</p> <div class="credits"> <p class="dwt_author">P. Souza Bond S. Soares Filho</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">382</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3484016"> <span id="translatedtitle">Medicinal ethnobotany in Huacareta (Chuquisaca, Bolivia)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Background The aim of this study was to document the types of diseases treated by the use of medicinal plants, their main applications and also to have a report of the major diseases treated at the Hospital of San Pablo de Huacareta (Chuquisaca Bolivia). Methods We conducted semi-structured interviews on the use medicinal plants with 10 local informants, and categorized the kinds of diseases treated by traditional medicine. We obtained reports of cases treated at the Hospital of Huacareta in order to compare the use frequency of traditional medicine and allopathic medicine for the treatment of recurrent diseases in the area. Results Our survey identified 258 traditional medicine uses, spanning a total of 13 diseases categories and including 91 native and exotic plant species and one unidentified sample plant type. Gastrointestinal disorders (55%) were most frequently treated with medicinal plants, followed by afflictions of the musculoskeletal system (25%) and dermatological disorders (24%). Hospital information indicates that the most common diseases are acute respiratory infections (47%) and acute diarrheal diseases (37%). The herbal remedies were mostly used in the form of teas and decoctions. The informants used mainly native plant species, although exotic species has been introduced to the pharmacopoeia. Conclusions The treatment of gastrointestinal disorders is the primary objective of the medical ethnobotany of the inhabitants of Huacareta, while respiratory system diseases are mostly treated in the hospital. Looking at the data from the Hospital records we can infer that gastrointestinal disorders are among the most common diseases in the study area. For most respondents, traditional medicine is a reliable choice for the care of their illnesses. However, the preference of the population for either traditional medicine or allopathic medicine needs to be clarified in future comparative studies to obtain more convincing results. The results presented can be used as a base for subsequent work related to traditional medicine and its contribution to allopathic medicine in San Pablo de Huacareta. Resumen Introducción El objetivo del presente estudio fue documentar los tipos de enfermedades tratadas mediante el uso de plantas medicinales, sus aplicaciones <span class="hlt">principales</span> y también tener un reporte de las enfermedades mayormente atendidas en el Hospital de San Pablo de Huacareta (Chuquisaca, Bolivia). Métodos Se realizaron encuestas semiestructuradas a 10 informantes locales anotando los usos atribuidos a sus plantas medicinales, se agruparon las plantas por categorías de enfermedades tratadas en la medicina tradicional. Se obtuvieron reportes de casos tratados en el Hospital de Huacareta para poder relacionar el tratamiento de enfermedades recurrentes en la zona entre la medicina tradicional y la medicina occidental. Resultados Se reportaron 91 especies nativas y exóticas, además de un espécimen indeterminado exótico que intervienen en un total de 258 aplicaciones medicinales, las cuales son empleadas en un total de 13 categorías de enfermedades. Los desórdenes gastrointestinales (55%) son mayormente tratados mediante plantas medicinales, seguidas de las afecciones al <span class="hlt">sistema</span> esqueleto-muscular (25%) y enfermedades dermatológicas (24%). La información del Hospital indica que las enfermedades más frecuentes son Infecciones Respiratorias Agudas (47%) y Enfermedades Diarreicas Agudas (37%). Los remedios vegetales se emplean en forma de infusiones y cocciones principalmente. Se emplean mayormente plantas nativas, también se introdujo en la farmacopea médica el uso de plantas exóticas al lugar. Conclusiones El tratamiento de trastornos gastrointestinales constituye el objetivo primordial de la etnobotánica médica de los habitantes de Huacareta, las enfermedades del <span class="hlt">sistema</span> respiratorio, son mayormente tratadas en el Hospital. Observando los datos del libro de consultas del Hospital, se puede inferir que los desórdenes gastrointestinales</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2012-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">383</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/20942922"> <span id="translatedtitle">Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) displays a lek mating system. Males form groups in which they simultaneously display signals (acoustical, visual, or chemical) to attract females with the purpose of mating. Females visit the lek and choose among signaling and courting males to mate. Scarce information is available in A. fraterculus about the main factors involved in female choice and the behavior of displaying males. This information could be important within the context of pest control programs with a sterile insect technique (SIT) component, because departures from normal sexual behavior caused by artificial rearing could affect males' performance in the field. In this study we assessed A. fraterculus male behavior within the leks and analyzed the importance of behavioral and morphological traits on their copulatory success. The existence of preferred places for lek formation was evaluated in field cages with trees inside and analyzed by dividing the trees in sectors according to a 3-dimensional system. Males were individually weighed, marked, and observed every 15 min. Morphometric and behavioral characteristics of successful and unsuccessful males were compared. Most successful males grouped in a region of the tree characterized by the highest light intensity in the first 2 h of the morning. Results showed that pheromone calling activity is positively associated with copulatory success. Copulations were more frequent for males calling inside the lek, indicating that pheromone calling activity and presence in the lek are key factors for copulatory success. A positive association between copulatory success and eye length was found; some characteristics of the face were also associated with copula duration and latency. (author) [Spanish] Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) presenta un <span class="hlt">sistema</span> de apareamiento tipo lek. Los machos forman grupos y, en forma conjunta, emiten senales (acusticas, visuales, o quimicas) para atraer a las hembras con el proposito de aparearse. Las hembras visitan el lek y eligen entre los machos para copular. La informacion acerca de los <span class="hlt">principales</span> factores involucrados en la eleccion de la hembra y de la influencia del comportamiento de los machos en los leks en esta eleccion es escasa para A. fraterculus . Esta informacion es importante en el contexto de programas de control que incluyen la Tecnica del Insecto Esteril. En el presente estudio se evaluo el comportamiento sexual de machos de A. fraterculus dentro de los leks, y la asociacion de su comportamiento y de rasgos morfometricos con el exito copulatorio. El lugar preferido de agrupamiento de los machos fue evaluado en jaulas de campo con arboles en su interior y dividiendo el arbol en sectores de acuerdo a un <span class="hlt">sistema</span> de tres dimensiones. Los machos fueron individualmente pesados, marcados y observados cada quince minutos. Luego de finalizado el ensayo se midieron los rasgos morfometricos. El mayor exito correspondio a machos agrupados en una region del arbol caracterizada por tener la mayor intensidad de luz en las dos primeras horas de la manana. Los resultados mostraron que la actividad de llamado con feromonas esta asociada con el exito copulatorio. Las copulas fueron mas frecuentes para machos que llamaron dentro del lek, indicando que la actividad de llamado con feromonas y la presencia dentro del lek son factores importantes en la obtencion de la copula. Los analisis morfometricos revelaron una asociacion positiva entre el exito copulatorio y el largo del ojo, y que algunas caracteristicas de la cara estan asociadas ademas con la duracion de la copula y la latencia. (author)</p> <div class="credits"> <p class="dwt_author">Segura, D.; Petit-Marty, N.; Cladera, J. [Instituto de Genetica, Instituto Nacional de Tecnologia Agropecuaria, Castelar CC 25, 1712 Castelar (Argentina); Sciurano, R.; Calcagno, G.; Gomez Cendra, P.; Vilardi, J. [Departamento de Ecologia, Genetica y Evolucion, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires (Argentina); Vera, T. [Estacion Experimental Agroindustrial Obispo Colombres, Tucuman (Argentina); Allinghi, A. [Comision Nacional de Energia Atomica, Buenos Aires (Argentina)</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-03-15</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">384</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://investigaciones.lasalle.edu.co/components/com_booklibrary/ebooks/rev_vol_5_n_1/11-24.pdf"> <span id="translatedtitle">Las certificaciones ISO 9001\\/2000 e ISO 14001\\/96 en Colombia</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Las certificaciones en <span class="hlt">sistemas</span> de gestión de la calidad NTC ISO 9001\\/2000 y <span class="hlt">sistemas</span> de gestión ambiental NTC ISO 14001\\/96, se han convertido en una prioridad para muchas organizaciones por las exigencias del mercado. Se presentan los resultados de un análisis cuantitativo de las empresas públicas y privadas del país que han optado por la certificación en <span class="hlt">sistemas</span> de gestión</p> <div class="credits"> <p class="dwt_author">Clara Inés Pardo Martínez</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">385</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://revistaeconomiacritica.org/sites/default/files/revistas/n8/4_bernal.pdf"> <span id="translatedtitle">La incertidumbre estructural en el problema de la sostenibilidad. Una panorámica</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Al incorporar el aspecto humano (junto con el económico y medio ambiental), a un <span class="hlt">sistema</span> que pretende ser sostenible, éste se convierte en un <span class="hlt">sistema</span> complejo, reflexivo y emergente. La propiedad de la reflexividad supone la existencia de una incertidumbre que no puede reducirse de ningún modo, pero que es necesario gestionar si se pretende la sostenibilidad del <span class="hlt">sistema</span>. Este</p> <div class="credits"> <p class="dwt_author">Estrella Bernal Cuenca</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">386</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.cancer.gov/espanol/cancer/guia-estudios-clinicos/pago/leyes-estados"> <span id="translatedtitle">Estados que requieren cobertura de los costos de estudios clínicos</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.cancer.gov">Cancer.gov</a></p> <p class="result-summary">Una lista de búsqueda y el mapa de los estados de EE.UU. requieren que los planes de salud para pagar los costos de la atención del paciente asociados con ensayos clínicos. Las <span class="hlt">principales</span> disposiciones se resumen.</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">387</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.cancer.gov/espanol/noticias/informe-anual-2006"> <span id="translatedtitle">El Informe Anual a la Nación indica que las tasas de mortalidad por cáncer continúan declinando. Se observan tasas menores de cáncer en las poblaciones latinas de los Estados Unidos.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.cancer.gov">Cancer.gov</a></p> <p class="result-summary">Un informe nuevo de las <span class="hlt">principales</span> organizaciones oncológicas de la nación informa que el riesgo de los estadounidenses de morir por cáncer continúa descendiendo, y que mantiene una tendencia que comenzó a principios de los años noventa. Preguntas y respuestas</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">388</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/39122201"> <span id="translatedtitle">Evolution de la théorie de l'entreprise : sa signification, ses implications</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">[fre] Evolution de la théorie de l'entreprise : sa signification, ses implications. . La distinction des approches marginaliste, directoriale et behavioriste de la firme n'est qu'une approximation. On doit plutôt distinguer dans l'étude de la firme, une tendance <span class="hlt">principalement</span> inductive et une tendance <span class="hlt">principalement</span> deductive, toutes deux prolongeant le modèle concurrentiel pur. Par ailleurs, la conception retenue de l'entreprise dépend</p> <div class="credits"> <p class="dwt_author">Jacques Lebraty</p> <p class="dwt_publisher"></p> <p class="publishDate">1974-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">389</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4113820"> <span id="translatedtitle">Ascophyllan Purified from Ascophyllum nodosum Induces Th1 and Tc1 Immune Responses by Promoting Dendritic Cell Maturation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Marine-derived sulfated polysaccharides have been shown to possess certain <span class="hlt">anti-virus</span>, anti-tumor, anti-inflammatory and anti-coagulant activities. However, the in vivo immunomodulatory effects of marine-derived pure compounds have been less well characterized. In this study, we investigated the effect of ascophyllan, a sulfated polysaccharide purified from Ascophyllum nodosum, on the maturation of mouse dendritic cells (DCs) in vitro and in vivo. Ascophyllan induced up-regulation of co-stimulatory molecules and production of pro-inflammatory cytokines in bone marrow-derived DCs (BMDCs). Moreover, in vivo administration of ascophyllan promotes up-regulation of CD40, CD80, CD86, MHC class I and MHC class II and production of IL-6, IL-12 and TNF-? in spleen cDCs. Interestingly, ascophyllan induced a higher degree of co-stimulatory molecule up-regulation and pro-inflammatory cytokine production than fucoidan, a marine-derived polysaccharide with well-defined effect for promoting DC maturation. Ascophyllan also promoted the generation of IFN-?-producing Th1 and Tc1 cells in the presence of DCs in an IL-12-dependent manner. Finally, myeloid differentiation primary response 88 (MyD88) signaling pathway was essential for DC maturation induced by ascophyllan. Taken together, these results demonstrate that ascophyllan induces DC maturation, and consequently enhances Th1 and Tc1 responses in vivo. This knowledge could facilitate the development of novel therapeutic strategies to combat infectious diseases and cancer.</p> <div class="credits"> <p class="dwt_author">Zhang, Wei; Du, Jiang-Yuan; Jiang, Zedong; Okimura, Takasi; Oda, Tatsuya; Yu, Qing; Jin, Jun-O</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">390</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/15628531"> <span id="translatedtitle">[A case of receipieut of kidney transplantation presenting life-threatning preumothorax due to the rupture of intrapulmonary multiple infections cavities caused by Absidia corymbifera and methicillin-resistant Staphylococcus aureus].</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">We report a rare case of life-threatning pneumothorax induced by multiple intrapulmonary cavitary lesion due to Absidia corymbifera and methicillin-resistant Staphylococcus aureus (MRSA). The patient was a 58-year-old man who had undergone kidney transplantation three year ago due to diabetes renal failure. He had been treated with immunosuppressive drugs and prednisolone, but he had neutropenia and an abnormal shadow on the chest X-ray. His chest X-ray findings became worse inspite of broad-spectrum antibiotis, vancomycin, <span class="hlt">antivirus</span> drug, gamma-globulin and antifungal drug therapy. He came to our emergency center because of dyspnea due to right massive pleural effusion and peumothorax about two months after onset of neutropenia. His arterial blood gas showed severe hypoxia and the chest CT scan showed birateral pleural effusion and multiple intrapulmonary cavities. He was treated with chest tube drainage and intubated, but he died of progressive respiratory failure on admission day 3. Macroscopic and microbiologic findings of necroptic lung revealed the cavity with fistula in the middle lobe, which included debris with mucor and MRSA. The species of mucor identified as Absidia corymbifera as a result of analysis of BLAST with nested-PCR using the palafin-block. PMID:15628531</p> <div class="credits"> <p class="dwt_author">Morimatsu, Yoshitaka; Sano, Ayako; Yukutake, Nao; Imaoka, Haruki; Nishimura, Kazuko; Aizawa, Hisamichi</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">391</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3631665"> <span id="translatedtitle">Rig-I regulates NF-?B activity through binding to Nf-?b1 3?-UTR mRNA</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Retinoic acid inducible gene I (RIG-I) senses viral RNAs and triggers innate antiviral responses through induction of type I IFNs and inflammatory cytokines. However, whether RIG-I interacts with host cellular RNA remains undetermined. Here we report that Rig-I interacts with multiple cellular mRNAs, especially Nf-?b1. Rig-I is required for NF-?B activity via regulating Nf-?b1 expression at posttranscriptional levels. It interacts with the multiple binding sites within 3?-UTR of Nf-?b1 mRNA. Further analyses reveal that three distinct tandem motifs enriched in the 3?-UTR fragments can be recognized by Rig-I. The 3?-UTR binding with Rig-I plays a critical role in normal translation of Nf-?b1 by recruiting the ribosomal proteins [ribosomal protein L13 (Rpl13) and Rpl8] and rRNAs (18S and 28S). Down-regulation of Rig-I or Rpl13 significantly reduces Nf-?b1 and 3?-UTR–mediated luciferase expression levels. These findings indicate that Rig-I functions as a positive regulator for NF-?B signaling and is involved in multiple biological processes in addition to host <span class="hlt">antivirus</span> immunity.</p> <div class="credits"> <p class="dwt_author">Zhang, Hong-Xin; Liu, Zi-Xing; Sun, Yue-Ping; Lu, Shun-Yuan; Liu, Xue-Song; Huang, Qiu-Hua; Xie, Yin-Yin; Dang, Su-Ying; Zheng, Guang-Yong; Li, Yi-Xue; Kuang, Ying; Fei, Jian; Chen, Zhu; Wang, Zhu-Gang</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">392</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4086979"> <span id="translatedtitle">A Novel Method for Simultaneous Production of Two Ribosome-Inactivating Proteins, ?-MMC and MAP30, from Momordica charantia L</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Alpha-momorcharin (?-MMC) and momordica anti-HIV protein (MAP30) from Momordica charantia L. have been confirmed to possess anti-tumor and <span class="hlt">anti-virus</span> activities. Traditional purification methods of these two ribosome-inactivating proteins (RIPs) were separate which was time consuming and cost effective as well as low efficient. In order to obtain sufficient samples for researches, a strategy combining ion-exchange and gel filtration chromatography was developed and optimized in this study. Using this novel purification method, averagely 1162 mg of ?-MMC and 535 mg of MAP30 were obtained from 400 g of Momordica charantia L seeds. The homogeneities of them were assessed by electrophoresis analysis. Determination of molecular weights of ?-MMC and MAP30 were 28.585 kDa and 29.094 kDa by MALDI-TOF/TOF and pI were 9.02 and 9.12, respectively. The single glycoproteins were identified by Periodate-Schiff's base (PAS) and the saccharide content was tested to be 1.25% and 1.1% by anthrone-sulfuric acid method. Biological activities were evidenced by their ability to inhibit proliferation of lung adenocarcinoma A549 cell and to convert supercoiled plasmid pUC18 into relaxed forms. Finally, we also found that both two RIPs exhibited no superoxide dismutase (SOD) activity.</p> <div class="credits"> <p class="dwt_author">Liu, Shuangfeng; Fan, Xiang; Li, Gangrui; Meng, Yanfa</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">393</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/11676616"> <span id="translatedtitle">Subversion and piracy: DNA viruses and immune evasion.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">During the co-evolution of viruses with their vertebrate hosts, the DNA viruses have acquired an impressive array of immunomodulatory genes to combat host immune responses and their hosts have developed a sophisticated immune system to contain virus infections. In order to replicate, the viruses have evolved mechanisms to inhibit key host <span class="hlt">anti-virus</span> responses that include apoptosis, interferon production, chemokine production, inflammatory cytokine production, and the activity of cytotoxic T-cells, natural killer cells and antibody. In addition, some of the viruses encode cytokine or chemokine homologues that recruit or expand cell numbers for infection or that subvert the host cellular response from a protective response to a benign one. The specificity of the viral immunomodulatory molecules reflects the life cycle and the pathogenesis of the viruses. Herpesviruses achieve latency in host cells by inducing cell survival and protecting infected cells from immune recognition. This involves interference with cell signal transduction pathways. Many of the viral immunomodulatory proteins are homologues of host proteins that appear to have been pirated from the host and reassorted in the virus genomes. Some of these have unique functions and indicate novel or important aspects of both viral pathogenesis and host immunity to viruses. The specific example of orf virus infection of sheep is described. PMID:11676616</p> <div class="credits"> <p class="dwt_author">Haig, D M</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-06-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">394</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3762208"> <span id="translatedtitle">ISG15 Inhibits IFN-?-Resistant Liver Cancer Cell Growth</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Hepatocellular carcinoma (HCC) is one of the most prevalent tumors worldwide. Interferon-? (IFN-?) has been widely used in the treatment of HCC, but patients eventually develop resistance. ISG15 ubiquitin-like modifier (ISG15) is a ubiquitin-like protein transcriptionally regulated by IFN-? which shows <span class="hlt">antivirus</span> and antitumor activities. However, the exact role of ISG15 is unknown. In the present study, we showed that IFN-? significantly induced ISG15 expression but failed to induce HepG2 cell apoptosis, whereas transient overexpression of ISG15 dramatically increased HepG2 cell apoptosis. ISG15 overexpression increased overall protein ubiquitination, which was not observed in cells with IFN-?-induced ISG15 expression, suggesting that IFN-? treatment not only induced the expression of ISG15 but also inhibited ISG15-mediated ubiquitination. The tumor suppressor p53 and p21 proteins are the key regulators of cell survival and death in response to stress signals such as DNA damage. We showed that p53 or p21 is only up regulated in HepG2 cells ectopically expressing ISG15, but not in the presence of IFN-?-induced ISG15. Our results suggest that ISG15 overexpression could be developed into a powerful gene-therapeutic tool for treating IFN-?-resistant HCC.</p> <div class="credits"> <p class="dwt_author">Chen, Han-chun; Xu, Ai-hua; Yang, Fu-lan; Zhang, Yun-yi; Zhang, Dian-zheng</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">395</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3705386"> <span id="translatedtitle">Diketopiperazine Derivatives from the Marine-Derived Actinomycete Streptomyces sp. FXJ7.328</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Five new diketopiperazine derivatives, (3Z,6E)-1-N-methyl-3-benzylidene-6-(2S-methyl-3-hydroxypropylidene)piperazine-2,5-dione (1), (3Z,6E)-1-N-methyl-3-benzylidene-6-(2R-methyl-3-hydroxypropylidene)piperazine-2,5-dione (2), (3Z,6Z)-3-(4-hydroxybenzylidene)-6-isobutylidenepiperazine-2,5-dione (3), (3Z,6Z)-3-((1H-imidazol-5-yl)-methylene)-6-isobutylidenepiperazine-2,5-dione (4), and (3Z,6S)-3-benzylidene-6-(2S-but-2-yl)piperazine-2,5-dione (5), were isolated from the marine-derived actinomycete Streptomyces sp. FXJ7.328. The structures of 1–5 were determined by spectroscopic analysis, CD exciton chirality, the modified Mosher’s, Marfey’s and the C3 Marfey’s methods. Compound 3 showed modest <span class="hlt">antivirus</span> activity against influenza A (H1N1) virus with an IC50 value of 41.5 ± 4.5 ?M. In addition, compound 6 and 7 displayed potent anti-H1N1 activity with IC50 value of 28.9 ± 2.2 and 6.8 ± 1.5 ?M, respectively. Due to the lack of corresponding data in the literature, the 13C NMR data of (3Z,6S)-3-benzylidene-6-isobutylpiperazine-2,5-dione (6) were also reported here for the first time.</p> <div class="credits"> <p class="dwt_author">Wang, Pei; Xi, Lijun; Liu, Peipei; Wang, Yi; Wang, Wei; Huang, Ying; Zhu, Weiming</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">396</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/16854642"> <span id="translatedtitle">Chicken recombinant antibodies against infectious bursal disease virus are able to form antibody-virus immune complex.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Virus particles exposed to specific <span class="hlt">anti-virus</span> antibodies result in the formation of immune complexes (Icx). Recent vaccination strategies have employed this feature, and an infectious bursal disease virus (IBDV) vaccine based on Icx has been released and is expected to replace conventional IBDV vaccines. We evaluated whether chicken recombinant antibodies (rAb) specific for IBDV, rather than conventional chicken anti-IBDV sera, could be used to generate Icx. Out of 14 rAb expressed as soluble single-chain variable fragments (scFv), nine were able to completely neutralize Bursavac, a live IBDV vaccine, when tested in ovo. When these rAb were mixed with IBDV and inoculated into either 18-day-old embryos, or 1-day-old or 2-week-old specific pathogen free chicks, a rAb.IBDV complex was formed. These Icx were similar to those produced by polyclonal chick anti-IBDV sera and IBDV. Following inoculation of the rAb.IBDV complex, the virus was rendered non-infectious for 5 to 7 days. After this time virus was released from the Icx, resulting in infection of the inoculated chicks and subsequent induction of an immune response and protection against virulent IBDV challenge. The results indicated that genetically derived antibodies can replace polyclonal sera in the formulation of Icx vaccines. PMID:16854642</p> <div class="credits"> <p class="dwt_author">Ignjatovic, J; Gould, G; Trinidad, L; Sapats, S</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">397</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/16723116"> <span id="translatedtitle">Effects of Nidus Vespae extract and chemical fractions on the growth and acidogenicity of oral microorganisms.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Nidus Vespae is the honeycomb of Polistes Olivaceous (De Geer), P. Japonicus Saussure, and Parapolybiavaria Fabricius. It is known to have a number of pharmacological effects, including antimicrobial, anti-inflammatory, <span class="hlt">anti-virus</span>, anti-tumor and anesthetic properties. The present study evaluated the antimicrobial activity and acid inhibition properties of extracts and chemical fractions of Nidus Vespae. The raw material was first extracted using 95% ethanol/water. Subsequent fractions were prepared from this extract using cyclohexane/ethyl acetate, petroleum ether/ethyl acetate, and chloroform/methanol. For the antimicrobial activity assays, minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) were determined using the microdilution method. The chloroform/methanol (Chl/MeOH) fraction showed the highest antibacterial activities with a MIC of 8-16mg/ml and an MBC of 16-32mg/ml. In addition, the extract and chemical fractions of Nidus Vespae showed a remarkable capacity for inhibiting the acid production of common oral bacteria at sub-MIC concentrations. Sub-MIC levels of the petroleum ether/ethyl acetate fraction significantly inhibited acid production by Streptococcus mutans ATCC 25175. The significant antiacidogenic activity demonstrated by Nidus Vespae shows it to be a promising source of novel anticariogenic agents. PMID:16723116</p> <div class="credits"> <p class="dwt_author">Xiao, Jin; Liu, Yuan; Zuo, Yu Ling; Li, Ji Yao; Ye, Ling; Zhou, Xue Dong</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-09-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">398</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/24740895"> <span id="translatedtitle">Screening epidermal growth factor receptor antagonists from Radix et Rhizoma Asari by two-dimensional liquid chromatography.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Radix et Rhizoma Asari is a traditional Chinese medicine, and has many pharmacological effects, such as calming, analgesia, anti-inflammation, antiarrhythmic, antihypertensive, <span class="hlt">antivirus</span>, etc. But few studies have screened the active compounds from extracts of Radix et Rhizoma Asari for tumor therapy. In this study, a two-dimensional liquid chromatography system was built to screen active compounds acting on epidermal growth factor receptor (EGFR) from Radix et Rhizoma Asari. The screening result showed that asarinin from Radix et Rhizoma Asari was the targeted component that could act on EGFR specificity. The competitive binding assay and molecular docking assay results showed asarinin binding with EGFR in similar manner as with gefitinib, which was used as a positive control drug. Then the antitumor effect of asarinin was studied through cell growth assay in vitro. The results showed that gefitinib and asarinin could inhibit highly expressed EGFR cell growth in a dose-dependent manner in the range of dose from 0.10 to 102.4 ?M. This two-dimensional liquid chromatography system will be a useful method in drug discovery from natural medicinal herbs for searching potential antitumor candidates. PMID:24740895</p> <div class="credits"> <p class="dwt_author">Han, Shengli; Huang, Jing; Hou, Jingjing; Wang, Sicen</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">399</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3760119"> <span id="translatedtitle">Studies on Chromatographic Fingerprint and Fingerprinting Profile-Efficacy Relationship of Polygoni Perfoliati Herba</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Polygoni Perfoliati Herba is widely used in China with antibacterium, anti-inflammatory, expectorant, antitumor, and <span class="hlt">antivirus</span> activities. To reveal the mechanisms of the activities of Polygoni Perfoliati Herba, the relationship between the fingerprinting profile and its bioactivities was investigated. In the present study, high-performance liquid chromatographic (HPLC) fingerprinting method was developed. The established method was applied to analyze 51 batches of Polygoni Perfoliati Herba samples collected from different locations or in different harvesting times in China. Chemometrics, including similarity analysis, hierarchical clustering analysis, and principal component analysis, were used to express their similarities. It was found that similarity values of the samples were in the range of 0.432–0.998. The results of analgesic tests indicated that Polygoni Perfoliati Herba could significantly inhibit pain induced by hot plate and acetic acid in mice. The results of anti-inflammatory tests showed that Polygoni Perfoliati Herba had good anti-inflammatory effects (P < 0.01) in two models including dimethyl benzene-induced ear edema and acetic acid-induced peritoneal permeability in mice. Combining the results from chromatographic fingerprints with those from bioactivities, we found that seven peaks from Polygoni Perfoliati Herba were mainly responsible for analgesic and anti-inflammatory activities.</p> <div class="credits"> <p class="dwt_author">Tian, Li; Chen, Hua-Guo; Zhao, Chao; Gong, Xiao-Jian</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">400</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/20121729"> <span id="translatedtitle">Bortezomib as the sole post-renal transplantation desensitization agent does not decrease donor-specific anti-HLA antibodies.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Persistence of donor-specific anti-HLA antibodies (DSA) associated with antibody-mediated graft injuries following kidney transplantation predicts evolution toward chronic humoral rejection and reduced graft survival. Targeting plasma cells, the main antibody-producing cells, with the proteasome inhibitor bortezomib may be a promising desensitization strategy. We evaluated the in vivo efficacy of one cycle of bortezomib (1.3 mg/m(2)x 4 doses), used as the sole desensitization therapy, in four renal transplant recipients experiencing subacute antibody-mediated rejection with persisting DSA (>2000 [Mean Fluorescence Intensity] MFI). Bortezomib treatment did not significantly decrease DSA MFI within the 150-day posttreatment period in any patient. In addition, <span class="hlt">antivirus</span> (HBV, VZV and HSV) antibody levels remained stable following treatment suggesting a lack of efficacy on long-lived plasma cells. In conclusion, one cycle of bortezomib alone does not decrease DSA levels in sensitized kidney transplant recipients in the time period studied. These results underscore the need to evaluate this new desensitization agent properly in prospective, randomized and well-controlled studies. PMID:20121729</p> <div class="credits"> <p class="dwt_author">Sberro-Soussan, R; Zuber, J; Suberbielle-Boissel, C; Candon, S; Martinez, F; Snanoudj, R; Rabant, M; Pallet, N; Nochy, D; Anglicheau, D; Leruez, M; Loupy, A; Thervet, E; Hermine, O; Legendre, C</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-03-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_19");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span 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</span> </span> <a id="NextPageLink" onclick='return showDiv("page_22");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">401</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/20214942"> <span id="translatedtitle">Antiviral activity by fish antimicrobial peptides of epinecidin-1 and hepcidin 1-5 against nervous necrosis virus in medaka.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The nervous necrosis virus (NNV)-medaka infection model was used in this study for analysis of NNV infection and treatment of NNV with the antimicrobial peptides (AMPs) of epinecidin-1 and hepcidin 1-5 at the organismal level. Our results showed that co-treatment of AMPs with the virus was effective in promoting a significant increase in medaka survival. Re-challenge with the virus also showed high survival suggesting that these two AMPs enhanced fish survival. However, pretreatment or post-treatment with AMPs showed that both of these AMPs increased medaka survival and suggested that AMPs can be used as drugs to rescue infected medaka. The data presented here indicate that epinecidin-1 and hepcidin 1-5 have in vivo <span class="hlt">antivirus</span> activity against the NNV, and hepcidin 1-5 functions like a lytic peptide after an in vitro assay. Infection after pretreatment, co-treatment, and post-treatment with epinecidin-1 or hepcidin 1-5 was verified by RT-PCR which showed both peptides can downregulate NNV and interferon gene expressions. In addition, our results suggest that epinecidin-1 or hepcidin 1-5 may prove to be an effective chemotherapeutic agent for aquaculture in the future. PMID:20214942</p> <div class="credits"> <p class="dwt_author">Wang, Yi-Da; Kung, Chun-Wei; Chen, Jyh-Yih</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-06-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">402</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/22545675"> <span id="translatedtitle">On the value of homology models for virtual screening: discovering hCXCR3 antagonists by pharmacophore-based and structure-based approaches.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Human chemokine receptor CXCR3 (hCXCR3) antagonists have potential therapeutic applications as <span class="hlt">antivirus</span>, antitumor, and anti-inflammatory agents. A novel virtual screening protocol, which combines pharmacophore-based and structure-based approaches, was proposed. A three-dimensional QSAR pharmacophore model and a structure-based docking model were built to virtually screen for hCXCR3 antagonists. The hCXCR3 antagonist binding site was constructed by homology modeling and molecular dynamics (MD) simulation. By combining the structure-based and ligand-based screenings results, 95% of the compounds satisfied either pharmacophore or docking score criteria and would be chosen as hits if the union of the two searches was taken. The false negative rates were 15% for the pharmacophore model, 14% for the homology model, and 5% for the combined model. Therefore, the consistency of the pharmacophore model and the structural binding model is 219/273 = 80%. The hit rate for the virtual screening protocol is 273/286 = 95%. This work demonstrated that the quality of both the pharmacophore model and homology model can be measured by the consistency of the two models, and the false negatives in virtual screening can be reduced by combining two virtual screening approaches. PMID:22545675</p> <div class="credits"> <p class="dwt_author">Huang, Dane; Gu, Qiong; Ge, Hu; Ye, Jiming; Salam, Noeris K; Hagler, Arnie; Chen, Hongzhuan; Xu, Jun</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-05-25</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">403</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/10828457"> <span id="translatedtitle">Successful mimicry of a complex viral antigen by multiple peptide insertions in a carrier protein.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The antigenic properties of a viral peptide from the surface of foot-and-mouth disease virus particles have been successfully mimicked by multiple insertion in solvent-exposed regions of Escherichia coli beta-galactosidase. By increasing the number of viral peptides per enzyme monomer, the average IC(50) of hybrid proteins in a competitive enzyme-linked immunosorbent assay) have decreased to values close to that presented by natural virions. Moreover, the antigenic diversity of these new recombinant enzymes when measured with different <span class="hlt">anti-virus</span> antibodies has also been largely reduced, indicating a better presentation of the epitopes located in the viral peptide. Although bivalent antibody binding could have been favoured by multiple presentation, conformational modifications of the viral peptide, due to the presence of other insertions or a cooperative antibody binding cannot be excluded. In addition, a multidimensional antigenic analysis have grouped together the multiple-inserted proteins with the native virus, suggesting that increasing the number of insertions could be a good strategy to reproduce the antigenic properties of an immunoreactive peptide in a natural multimeric disposition. PMID:10828457</p> <div class="credits"> <p class="dwt_author">Feliu, J X; Carbonell, X; Villaverde, A</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-05-26</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">404</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/20203382"> <span id="translatedtitle">Polymyositis in patients taking antiviral clevudine therapy: a report of two cases.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The new antivirals clevudine, telbivudine and emtricitabine may be potent agents for the treatment of hepatitis B virus (HBV). However, there have been no reports on serious adverse events associated with the use of clevudine. A son and his mother both had HBV infection (ages: 27 and 47 years, respectively), and they had received <span class="hlt">antivirus</span> treatment with clevudine (30 mg daily). They developed progressive weakness of the lower extremities and difficulty arising from the ground. Both the patients had symptoms for the previous 3 approximately 4 months in process of 14 approximately 17 months of clevudine therapy. The physical examinations showed positive Gower's sign, a decreased gait velocity and symmetrical proximal weakness (MRC grade 4/5). Their blood tests at admission revealed elevated or positive HBs Ag, HBV DNA, AST, ALT, creatine kinase, LDH, myoglobin and CK-MB. For both patients, the electrodiagnostic studies indicated myopathy and the pathologic findings of biopsied muscles revealed myositis. Drug-induced polymyositis was suspected and the clevudine was finally withdrawn. The muscle weakness and laboratory findings were improved for both patients after conservative care. We report here on the first cases of polymyositis that may have been caused by administering the new nucleoside analog clevudine for treating HBV infection. PMID:20203382</p> <div class="credits"> <p class="dwt_author">Yang, Chung Yong; Park, Soon-Ah; Kim, Hun Soo; Shin, Yong Il</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">405</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/7484295"> <span id="translatedtitle">[Therapeutic guidelines in chronic fatigue syndrome].</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The treatment of CFS is not definitive up till now and it is limited both by ignorance of its causes and by different applicable operative case definitions. It has been etiopathologically related to infectious agents, neuromuscular illnesses, neuro-endocrinous-immunologic alterations and to different psychiatric disorders, particularly depressive disorders. Consequently, a great variety of therapeutic strategies have been tried, most of them with insufficient results. Among the medicamentous ones: immunity activator agents such as recombinant interleukin-2, nonspecific immunitary modulators such as seric gamma globulin, <span class="hlt">antivirus</span> drugs such as acyclovir, muscular relaxants such as ciclobenzaprine, H2 receptor blockers and steroid and nonsteroid anti-inflammatory drugs such as ibuprofen, naproxen and fulbiprofen. Better results seem to have been obtained with antidepressants, and amfebutamone and serotonin-reuptake selective inhibitors are specially promising. Among the nonmedicamentous strategies, cognitive behavioural treatment can be effective and the so called "psychiatric management of the patient with CFS" has been proposed as a global, pragmatic, individualized, comprehensive approach which must be completed with other interdisciplinary interventions on the patient and his environment. PMID:7484295</p> <div class="credits"> <p class="dwt_author">Bertolín Guillén, J M; Bedate Villar, J</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">406</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25080013"> <span id="translatedtitle">Phishing for suitable targets in the Netherlands: routine activity theory and phishing victimization.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Abstract This article investigates phishing victims, especially the increased or decreased risk of victimization, using data from a cybercrime victim survey in the Netherlands (n=10,316). Routine activity theory provides the theoretical perspective. According to routine activity theory, several factors influence the risk of victimization. A multivariate analysis was conducted to assess which factors actually lead to increased risk of victimization. The model included background and financial data of victims, their Internet activities, and the degree to which they were "digitally accessible" to an offender. The analysis showed that personal background and financial characteristics play no role in phishing victimization. Among eight Internet activities, only "targeted browsing" led to increased risk. As for accessibility, using popular operating systems and web browsers does not lead to greater risk, while having up-to-date <span class="hlt">antivirus</span> software as a technically capable guardian has no effect. The analysis showed no one, clearly defined group has an increased chance of becoming a victim. Target hardening may help, but opportunities for prevention campaigns aimed at a specific target group or dangerous online activities are limited. Therefore, situational crime prevention will have to come from a different angle. Banks could play the role of capable guardian. PMID:25080013</p> <div class="credits"> <p class="dwt_author">Leukfeldt, E Rutger</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">407</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23519790"> <span id="translatedtitle">Hydrolysis is the dominating in vivo metabolism pathway for arctigenin: identification of novel metabolites of arctigenin by LC/MS/MS after oral administration in rats.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The phenylpropanoid dibenzylbutyrolactone lignan arctigenin, a key component found in Arctium lappa, or burdock, has been reported with a variety of therapeutic effects including anticancer, anti-inflammation, and <span class="hlt">antivirus</span> effects. Using LC/MS/MS, three novel metabolites of arctigenin, namely, arctigenic acid, arctigenin-4-O'-glucuronide, and 4-O-demethylarctigenin were identified after oral administration of arctigenin in rats for the first time. Another potential metabolite of arctigenin, arctigenin-4'-O-sulfate, was identified in vitro but not in vivo. Structure of arctigenic acid, the major metabolite of arctigenin, was confirmed by 13C-NMR and 1H-NMR. Rapid hydrolysis in plasma was identified as the major metabolic pathway of arctigenin after its oral administration, with Vmax, Km, and Clint in rat plasma determined to be 2.21 ± 0.12 nmol/min/mg, 89.12 ± 9.44 µM, and 24.74 µL/min/mg, respectively. Paraoxonase 1 was further confirmed to be the enzyme responsible for arctigenin hydrolysis, with Vmax, Km, and Clint determined to be 55.39 ± 1.49 nmol/min/mg, 300.3 ± 10.86 µM, and 184.45 µL/min/mg, respectively. PMID:23519790</p> <div class="credits"> <p class="dwt_author">Gao, Qiong; Zhang, Yufeng; Wo, Siukwan; Zuo, Zhong</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">408</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/16699373"> <span id="translatedtitle">Myelopeptide-2 recovers interleukin-2 synthesis and interleukin-2 receptor expression in human T lymphocytes depressed by tumor products or measles virus.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Myelopeptide-2 (MP-2; Leu-Val-Val-Tyr-Pro-Trp), originally isolated from the supernatant of porcine bone marrow cell culture, is able to restore the mitogen responsiveness of human T lymphocytes inhibited by conditioned medium from HL-60 leukemia cells or measles virus. This effect is based on the ability of MP-2 to recover the reduced interleukin (IL)-2 synthesis and IL-2 receptor (IL-2R) expression in human T lymphocytes treated with these harmful agents. The involvement of other cytokines in MP-2 restoration of the reduced IL-2 synthesis in T lymphocytes is experimentally studied. It is shown that T helper (TH) 1 and TH2 cytokines are acting in close interaction, the character of which depends on the immune status of the T-lymphocyte donors. The data obtained allow one to suggest that the MP-2 involvement in regulatory processes is directed to the maintenance of immune homeostasis. This peptide is perspective to be applied in antitumor and <span class="hlt">antivirus</span> therapy. PMID:16699373</p> <div class="credits"> <p class="dwt_author">Mikhailova, Augusta A; Belevskaya, Raissa G; Kalyuzhnaya, Maria; Fonina, Larissa A; Liashenko, Vsevolod A; Petrov, Rem V</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">409</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2009AIPC.1148..843S"> <span id="translatedtitle">Case-Based Multi-Sensor Intrusion Detection</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Multi-sensor intrusion detection systems (IDSs) combine the alerts raised by individual IDSs and possibly other kinds of devices such as firewalls and <span class="hlt">antivirus</span> software. A critical issue in building a multi-sensor IDS is alert-correlation, i.e., determining which alerts are caused by the same attack. This paper explores a novel approach to alert correlation using case-based reasoning (CBR). Each case in the CBR system's library contains a pattern of alerts raised by some known attack type, together with the identity of the attack. Then during run time, the alert streams gleaned from the sensors are compared with the patterns in the cases, and a match indicates that the attack described by that case has occurred. For this purpose the design of a fast and accurate matching algorithm is imperative. Two such algorithms were explored: (i) the well-known Hungarian algorithm, and (ii) an order-preserving matching of our own device. Tests were conducted using the DARPA Grand Challenge Problem attack simulator. These showed that the both matching algorithms are effective in detecting attacks; but the Hungarian algorithm is inefficient; whereas the order-preserving one is very efficient, in fact runs in linear time.</p> <div class="credits"> <p class="dwt_author">Schwartz, Daniel G.; Long, Jidong</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">410</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23553835"> <span id="translatedtitle">Rig-I regulates NF-?B activity through binding to Nf-?b1 3'-UTR mRNA.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Retinoic acid inducible gene I (RIG-I) senses viral RNAs and triggers innate antiviral responses through induction of type I IFNs and inflammatory cytokines. However, whether RIG-I interacts with host cellular RNA remains undetermined. Here we report that Rig-I interacts with multiple cellular mRNAs, especially Nf-?b1. Rig-I is required for NF-?B activity via regulating Nf-?b1 expression at posttranscriptional levels. It interacts with the multiple binding sites within 3'-UTR of Nf-?b1 mRNA. Further analyses reveal that three distinct tandem motifs enriched in the 3'-UTR fragments can be recognized by Rig-I. The 3'-UTR binding with Rig-I plays a critical role in normal translation of Nf-?b1 by recruiting the ribosomal proteins [ribosomal protein L13 (Rpl13) and Rpl8] and rRNAs (18S and 28S). Down-regulation of Rig-I or Rpl13 significantly reduces Nf-?b1 and 3'-UTR-mediated luciferase expression levels. These findings indicate that Rig-I functions as a positive regulator for NF-?B signaling and is involved in multiple biological processes in addition to host <span class="hlt">antivirus</span> immunity. PMID:23553835</p> <div class="credits"> <p class="dwt_author">Zhang, Hong-Xin; Liu, Zi-Xing; Sun, Yue-Ping; Zhu, Jiang; Lu, Shun-Yuan; Liu, Xue-Song; Huang, Qiu-Hua; Xie, Yin-Yin; Zhu, Hou-Bao; Dang, Su-Ying; Chen, Hai-Feng; Zheng, Guang-Yong; Li, Yi-Xue; Kuang, Ying; Fei, Jian; Chen, Sai-Juan; Chen, Zhu; Wang, Zhu-Gang</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-04-16</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">411</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/20167539"> <span id="translatedtitle">Brief dexamethasone treatment during acute infection prevents virus-induced autoimmune diabetes.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">We used the LEW1.WR1 rat to test the hypothesis that Kilham rat virus-induced innate immune activation is involved in the mechanism of autoimmune diabetes. Animals were treated with dexamethasone, an anti-inflammatory glucocorticoid, beginning on the day of infection. Administering dexamethasone on five consecutive days completely blocked the disease. Strikingly, a single dose of dexamethasone was sufficient to prevent islet destruction. Dexamethasone downmodulated inflammation and restored normal ratios between CD8(+) and CD4(+)CD25(+)Foxp3(+) cells in the spleen. Finally, dexamethasone therapy lowered the frequency of splenic <span class="hlt">anti-virus</span> CD8(+) T cells, but did not interfere with the ability of the host to generate anti-KRV antibodies and eliminate the virus from the spleen. Our data demonstrate a strong association between early virus-induced proinflammatory responses and islet destruction and raise the possibility that targeting innate immune pathways in the early stages of diabetes may be a useful strategy for disease prevention. PMID:20167539</p> <div class="credits"> <p class="dwt_author">Londono, Pilar; Komura, Akiko; Hara, Naoko; Zipris, Danny</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-06-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">412</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25003606"> <span id="translatedtitle">A Novel Method for Simultaneous Production of Two Ribosome-Inactivating Proteins, ?-MMC and MAP30, from Momordica charantia L.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Alpha-momorcharin (?-MMC) and momordica anti-HIV protein (MAP30) from Momordica charantia L. have been confirmed to possess anti-tumor and <span class="hlt">anti-virus</span> activities. Traditional purification methods of these two ribosome-inactivating proteins (RIPs) were separate which was time consuming and cost effective as well as low efficient. In order to obtain sufficient samples for researches, a strategy combining ion-exchange and gel filtration chromatography was developed and optimized in this study. Using this novel purification method, averagely 1162 mg of ?-MMC and 535 mg of MAP30 were obtained from 400 g of Momordica charantia L seeds. The homogeneities of them were assessed by electrophoresis analysis. Determination of molecular weights of ?-MMC and MAP30 were 28.585 kDa and 29.094 kDa by MALDI-TOF/TOF and pI were 9.02 and 9.12, respectively. The single glycoproteins were identified by Periodate-Schiff's base (PAS) and the saccharide content was tested to be 1.25% and 1.1% by anthrone-sulfuric acid method. Biological activities were evidenced by their ability to inhibit proliferation of lung adenocarcinoma A549 cell and to convert supercoiled plasmid pUC18 into relaxed forms. Finally, we also found that both two RIPs exhibited no superoxide dismutase (SOD) activity. PMID:25003606</p> <div class="credits"> <p class="dwt_author">Meng, Yao; Lin, Sen; Liu, Shuangfeng; Fan, Xiang; Li, Gangrui; Meng, Yanfa</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">413</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/899476"> <span id="translatedtitle">From Intrusion Detection to Self Protection</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Modern computer systems have become so complex and interdependent that the traditional model of system defense, utilizing layers and including an intrusion detection system that provides alerts to a human who responds to them, is becoming unfeasible. Effective human-guided real-time responses are no longer a reasonable expectation for large scale systems--this is particularly troublesome because a failure to respond correctly and rapidly can have disastrous consequences. In an ideal world, our systems would automatically detect and respond to threats of all kinds, including but not limited to automated attacks, human-guided attacks, and the constant onslaught of unsolicited email (spam). Traditionally, these threats have been dealt with by separate communities--the <span class="hlt">anti-virus</span> community, the intrusion-detection/firewall community, and the anti-spam community. Today however, we see an increasing need for integrating different technologies toward achieving a common goal. In this special issue, we surveyed the research community with the intent of identifying novel, multidisciplinary and integrated approaches to system defense that contribute towards development of true self-protecting and self-healing systems. The result is reflected in the articles we selected.</p> <div class="credits"> <p class="dwt_author">Frincke, Deb; Wespi, Andreas; Zamboni, Diego</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-04-11</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">414</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/16130522"> <span id="translatedtitle">Evaluation of chemical and antiviral properties of essential oils from South American plants.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The essential oils of seven aromatic plants from Córdoba, San Luis and San Juan Provinces (Argentina) were isolated by steam distillation and analysed by a gas chromatography/mass spectrometry technique. The oils were screened for cytotoxicity and in vitro inhibitory activity against herpes simplex virus type 1 (HSV-1), dengue virus type 2 (DENV-2) and Junin virus (JUNV) by a virucidal test. The oils showed a variable virucidal action according to the virus. The better relationship between cytotoxicity and <span class="hlt">antivirus</span> action was observed with the essential oils of Heterothalamus alienus and Buddleja cordobensis against JUNV, with virucidal concentration 50% (VC50) values of 44.2 and 39.0 ppm and therapeutic indices (cytotoxicity to virucidal activity ratio) of 3.3 and 4.0, respectively. The inhibitory action was exerted by a direct interaction of virions with the oils. Virions inactivated with B. cordobensis and H. alienus essential oil were not affected in their ability to bind to the host cell. The therapeutic indices shown by these essential oils in toto were very modest, but given the complexity of their chemical composition the future identification of the precise active principle may allow the elimination of cytotoxic components and increase the selectivity of the effective compound. PMID:16130522</p> <div class="credits"> <p class="dwt_author">Duschatzky, Claudia B; Possetto, Mirta L; Talarico, Laura B; García, Cybele C; Michis, Fabiana; Almeida, Norma V; de Lampasona, Marina P; Schuff, Carola; Damonte, Elsa B</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">415</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/20110095"> <span id="translatedtitle">Immunization with an attenuated severe acute respiratory syndrome coronavirus deleted in E protein protects against lethal respiratory disease.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The severe acute respiratory syndrome coronavirus (SARS-CoV) caused substantial morbidity and mortality in 2002-2003. Deletion of the envelope (E) protein modestly diminished virus growth in tissue culture but abrogated virulence in animals. Here, we show that immunization with rSARS-CoV-DeltaE or SARS-CoV-Delta[E,6-9b] (deleted in accessory proteins (6, 7a, 7b, 8a, 8b, 9b) in addition to E) nearly completely protected BALB/c mice from fatal respiratory disease caused by mouse-adapted SARS-CoV and partly protected hACE2 Tg mice from lethal disease. hACE2 Tg mice, which express the human SARS-CoV receptor, are extremely susceptible to infection. We also show that rSARS-CoV-DeltaE and rSARS-CoV-Delta[E,6-9b] induced <span class="hlt">anti-virus</span> T cell and antibody responses. Further, the E-deleted viruses were stable after 16 blind passages through tissue culture cells, with only a single mutation in the surface glycoprotein detected. The passaged virus remained avirulent in mice. These results suggest that rSARS-CoV-DeltaE is an efficacious vaccine candidate that might be useful if SARS recurred. PMID:20110095</p> <div class="credits"> <p class="dwt_author">Netland, Jason; DeDiego, Marta L; Zhao, Jincun; Fett, Craig; Alvarez, Enrique; Nieto-Torres, José L; Enjuanes, Luis; Perlman, Stanley</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-03-30</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">416</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2001HydJ....9..401K"> <span id="translatedtitle">Urbanization and the groundwater budget, metropolitan Seoul area, Korea</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The city of Seoul is home to more than 10 million people in an area of 605 km2. Groundwater is ed for public water supply and industrial use, and to drain underground facilities and construction sites. Though most tap water is supplied from the Han River, the quantity and quality of groundwater is of great concern to Seoul's citizens, because the use of groundwater for drinking water is continuously increasing. This study identifies the major factors affecting the urban water budget and quality of groundwater in the Seoul area and estimates the urban water budget. These factors include leakage from the municipal water-supply system and sewer systems, precipitation infiltration, water-level fluctuations of the Han River, the subway pumping system, and domestic pumping. The balance between groundwater recharge and discharge is near equilibrium. However, the quality of groundwater and ability to control contaminant fluxes are impeded by sewage infiltration, abandoned landfills, waste dumps, and abandoned wells. Résumé. La ville de Séoul possède une population de plus de 10 millions d'habitants, pour une superficie de 605 km2. Les eaux souterraines sont pompées pour l'eau potable et pour les usages industriels, ainsi que pour drainer les équipements souterrains et les sites en construction. Bien que l'essentiel de l'eau potable provienne de la rivière Han, la quantité et la qualité de l'eau souterraine présentent un grand intérêt pour les habitants de Séoul, parce qu'on utilise de plus en plus l'eau souterraine pour l'eau potable. Cette étude identifie les facteurs principaux qui affectent la qualité de l'eau souterraine dans la région de Séoul et fait l'estimation du bilan d'eau urbaine. Les principaux facteurs affectant le bilan d'eau urbaine et la qualité de l'eau souterraine sont les fuites du réseau d'adduction et du réseau d'égouts, l'infiltration des eaux de précipitation, les fluctuations du niveau de la rivière Han, le réseau de pompage du métro et les pompages privés. Le bilan entre la recharge de la nappe et sa décharge est proche de l'équilibre. Cependant, les infiltrations d'eaux usées, les décharges abandonnées, les décharges d'ordures et les puits abandonnés portent atteinte à la qualité de l'eau souterraine et à la capacité de contrôler les flux de contaminants. Resumen. La ciudad de Seúl tiene más de 10 millones de habitantes en un área de 605 km2. Se bombea aguas subterráneas para abastecimiento urbano y para usos industriales, así como para el drenaje de instalaciones subterráneas y de solares en construcción. Aunque la mayor parte del agua de boca procede del río Han, los ciudadanos de Seúl están muy concienciados por la cantidad y calidad de las aguas subterráneas, ya que su explotación para uso de boca está experimentando un continuo incremento. El presente estudio identifica los factores que más afectan a la calidad de las aguas subterráneas en el área de Seúl y hace una estimación del balance de agua en el territorio urbano. Entre los factores <span class="hlt">principales</span> que afectan al balance y a la calidad de las aguas subterráneas, se incluye el lixiviado de la red municipal de suministro y de la red de alcantarillado, la infiltración de agua de lluvia, las fluctuaciones del nivel del río Han, el <span class="hlt">sistema</span> de bombeo del metro y los bombeos domésticos. El balance entre la recarga y la descarga en el acuífero está próximo al equilibrio. Sin embargo, la calidad de las aguas subterráneas y la capacidad de controlar los flujos de contaminación están amenazadas por la infiltración de aguas residuales, vertederos abandonados, depósitos de residuos y pozos abanadonados.</p> <div class="credits"> <p class="dwt_author">Kim, Yoon-Young; Lee, Kang-Kun; Sung, Ig Hwan</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">417</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.revbiolmar.cl/resumenes/v442/442-397.pdf"> <span id="translatedtitle">First record of parasites of Dosidicus gigas (d' Orbigny, 1835) (Cephalopoda: Ommastrephidae) from the Humboldt Current system off Chile Primer registro de los parásitos de Dosidicus gigas (d' Orbigny, 1835) (Cephalopoda: Ommastrephidae) en el <span class="hlt">sistema</span> de corriente de Humboldt frente a Chile</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The parasitic fauna of 124 jumbo squids (Dosidicus gigas) caught from oceanic and coastal waters off Central Chile (32ºS-40ºS) was described and quantified. The 97% of the squids harboured at least one parasitic taxon. Prevalence of infection and abundance were established for each parasite species. Each parasitic taxon was described based on light microscopy and scanning electron microscopy images. The</p> <div class="credits"> <p class="dwt_author">M. Cecilia Pardo-Gandarillas; Karin B. Lohrmann; Ana L. Valdivia; Christian M. Ibáñez</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">418</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE98759666"> <span id="translatedtitle">Sviluppo del <span class="hlt">sistema</span> di contenimento e del condizionamento termico di moduli da 2 kWh di batterie al litio ad elettrolita polimerico. (Containment system and thermal conduction in lithium electric batteries energy modules 2 kWh with polymeric electrolytes).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">In this work are presented some technical specifications regarding lithium electric batteries with polymeric electrolytes, in particular the design of electrodes container efficient and reliable and thermal management system oriented to safety, performanc...</p> <div class="credits"> <p class="dwt_author">A. Ciancia F. Alessandrini</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">419</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=N7313153"> <span id="translatedtitle">Study of a Radio Telemetry System for Detection and Tracking Operating in the Frequency Bands from 216 to 260 Mhz for Use with Rocket and Spherical Sondes . Estudio de UN <span class="hlt">Sistema</span> Radiotelemetrico de Busqueda Y Seguimiento Operando en la Banda de 216 a 260 Mhz Para Ser Em Pleado en Cohetes O Globos Sonda.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The transmission of information from a rocket to the ground was studied to develop experimental prototype circuits for flight tests. The circuits were used in various launches, and their performance was evaluated.</p> <div class="credits"> <p class="dwt_author">R. M. Cajal</p> <p class="dwt_publisher"></p> <p class="publishDate">1971-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">420</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2011100147"> <span id="translatedtitle">INFLUNET: <span class="hlt">Sistema</span> di Sorveglianza Sentinella Dell'influenza Basata su Medici di medicina Generale e Pediatri di Libera Scelta. Rapporto Sulla Stagione influenzale 2008-2009. (INFLUNET: A Sentinel Surveillance Network for Influenza Relying on General Practitioners and Paediatricians. Report for the Period 2008-2009.).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The sentinel network is a valuable tool for describing the epidemiology of influenza in Italy. In addition, it provides information for defining the baseline in order to allow comparison in the future. Beginning from the flu season (2000-2001), sentinel s...</p> <div class="credits"> <p class="dwt_author">G. di Lavoro</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_20");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' 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Rapporto Sulle Stagioni influenzali 2005-2006, 2006-2007, 2007-2008. (INFLUNET: a Sentinel Surveillance Network for Influenza Relying on General Practitioners and Paediatricians. Report for the Periods 2005-2006, 2006-2007, 2007-2008.)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The sentinel network is a valuable tool for describing the epidemiology of influenza in Italy. In addition, it provides information for defining the baseline in order to allow comparison in the future. Beginning from the flu season (2000-2001), sentinel s...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">422</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE97740752"> <span id="translatedtitle">Coltivazione di gerbera in idroponica su substrato con <span class="hlt">sistema</span> di irrigazione a ciclo aperto e a ciclo chiuso a confronto con la coltivazione tradizionale in cassone su terriccio. (Cultivar of Gerbera grown in soil less culture on inert substrates with open and closed systems in comparison with a traditional cultivation on soil in beds).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The aim of the experiment was the evaluation of the yield of several cultivar of gerbera grown in soil less culture on inert substrates with open and closed systems, in comparison with a traditional cultivation on soil in beds. The trial was carried out i...</p> <div class="credits"> <p class="dwt_author">A. Schiavi A. Venezia G. Martignon</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">423</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE98701531"> <span id="translatedtitle">Per uno studio della comunicazione e delle relazioni in un <span class="hlt">sistema</span> organizzato: Contributo alla ricerca ergonomica del benessere dell'individuo. (Steps towards an organizational study on human communication and relations: contributions to the ergonomic research on human well-being).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">Human relations and communication have always been studied by bio-disciplines interested in family pathology. Organized work has tied relations with family environment that is the reason why it is possible to project new work environment taking into accou...</p> <div class="credits"> <p class="dwt_author">S. Salerno S. Guglielmino C. Valerio C. Valitutti</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">424</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2006111290"> <span id="translatedtitle">Workshop Nazionale (5th): Enter-Net Italia. <span class="hlt">Sistema</span> di Sorveglianza delle Infezioni Enteriche. Sorveglianza e Prevenzione delle Infezioni Gastroenteriche. Instituo Superiore di Sanita, Roma, 1-2 Dicembre 2005. Riassunti (National Workshop (5th): Enter-Net Italia. Surveillance System of Enteric Infections. Surveillance and Prevention of Gastroenterical Infections. Held in Rome, Italy on December 1-2, 2005. Abstract Book).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">Enter-net is an international network for the surveillance of human gastrointestinal infections, which monitors salmonellosis and Verocytotoxin producing E. coli (VTEC) O157, including their antimicrobial resistance. Main objectives of Enter-net are the h...</p> <div class="credits"> <p class="dwt_author">A. Caprioli I. Luzzi S. Lana</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">425</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.sober.org.br/palestra/13/934.pdf"> <span id="translatedtitle">ANÁLISE DA CADEIA PRODUTIVA DO LEITE DO MUNICÍPIO DE CARMO DO RIO VERDE SOB A ÓTICA DA ECONOMIA DOS CUSTOS DE TRANSAÇÃO marceloadm.ms@gmail.com Apresentação Oral-Estrutura, Evolução e Dinâmica do s <span class="hlt">Sistemas</span> Agroalimentares e Cadeias Agroindustriais</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">This study aims to examine and describe the charact eristics of the dairy production chain of Carmo do Rio Verde under view the Economic Costs of Transaction (ECT). To that end, a systematic theoretical framework about ECT is arran ged, specifically some concepts of its assumptions, and the attributes of transactions (sp ecificity of assets, frequency of recurrence and uncertainty</p> <div class="credits"> <p class="dwt_author">MARCELO BATISTA DE OLIVEIRA; DEGSON FERREIRA; MARCOS DE MORAES; MARCO ANTÔNIO PEREIRA DE ABREU; MARCÍLIO STEFFANI; RODRIGUES PINTO</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">426</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://redalyc.uaemex.mx/redalyc/pdf/496/49615420.pdf"> <span id="translatedtitle">CONTRIBUCIÓN DE LA ENERGÍA AL DESARROLLO DE COMUNIDADES AISLADAS NO INTERCONECTADAS: UN CASO DE APLICACIÓN DE LA DINÁMICA DE <span class="hlt">SISTEMAS</span> Y LOS MEDIOS DE VIDA SOSTENIBLES EN EL SUROCCIDENTE COLOMBIANO CONTRIBUTION OF THE ENERGY AT DEVELOPMENT OF ISLATED COMMUNITIES IN NOT INTERCONNECTED ZONES: A CASE OF APPLICATION OF THE SYSTEMS DYNAMICS AND SUSTAINABLE LIVELIHOODS IN THE COLOMBIAN SOUTHWEST</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">This paper focuses on the problem of rural energization in isolated regions of Colombia (Not interconnected zones - NIS). Using the sustainable livelihood approach we assess the situation of the isolated communities before and after energization. System dynamics is used for simulation and evaluated energy policies. We apply our approach to the municipality of Jambaló in the Cauca department.</p> <div class="credits"> <p class="dwt_author">CARLOS FRANCO; ISAAC DYNER; SANTIAGO HOYOS</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">427</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.sober.org.br/palestra/13/1035.pdf"> <span id="translatedtitle">CONFLITOS E DESAFIOS NA COMERCIALIZAÇÃO DE PRODUTOS ORGÂNICOS NAS GRANDES REDES DE SUPERMERCADOS: O CASO DOS PROCESSADOS ORGÂNICOS NO RIO GRANDE DO SUL prcs1064@yahoo.com.br Apresentação Oral-Estrutura, Evolução e Dinâmica do s <span class="hlt">Sistemas</span> Agroalimentares e Cadeias Agroindustriais</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The article takes as its basis the current investig ation in the state of Rio Grande do Sul, where the organic agriculture presents an old tradition w hich has begun with the environmentalist movements, since the 1970's. The organic processed commercialization is analyzed in the supermarket chains Carrefour and Wall-Mart in the city of Porto Alegre. These chains were chosen</p> <div class="credits"> <p class="dwt_author">ROBERTO CARDOSO DA SILVEIRA</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">428</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE91640552"> <span id="translatedtitle">Analise de transmutacao considerando o tratamento explicito dos produtos de fissao num <span class="hlt">sistema</span> acoplado composto pelos codigos Hammer-Technion e Cinder-2. (Transmutation analysis considering and explicit fission product treatment based on a coupled Hammer-Technion and Cinder-2 system).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">This work presents a study about neutron absorption in a typical PWR cell by considering an explicit treatment for the fission products. The proposed methodology to treat fission product neutron absorption in a lattice calculation combines the HAMMER-TECH...</p> <div class="credits"> <p class="dwt_author">A. Y. Abe</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">429</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=DE98728541"> <span id="translatedtitle">Progetto A.P.I.ECO. Azioni pilota in favore dell'attuazione nelle piccole e medie industrie del <span class="hlt">sistema</span> comunitario di ecogestione e audit. (The A.P.I. ECO Project. Pilot demonstration project in small and medium enterprises implementing the eco-management and audit scheme).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">During a 18 months period in 1995/1996 a pilot demonstration project, on behalf of the Commission the European Communities, was undertaken to investigate the experience of 8 small and medium-sized enterprises (SMEs), in Lazio Region, implementing the Eco-...</p> <div class="credits"> <p class="dwt_author">N. Brunetti M. Casciani G. Galotti A. Peruzzi</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">430</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=N9434230"> <span id="translatedtitle">Estratificacao de Areas Desflorestadas Por Tipos de Vegetacao DA Amazonia, Utilizando <span class="hlt">Sistema</span> de Informacoes Geograficas: Estudo de Caso NA Folha SB20 Purus (Stratification of Deforested Areas by Vegetation Types in Amazonia, Using Geographic Information Systems: Study of Case at SB20 Purus MAP).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">A methodology to stratify deforested areas by Amazonia vegetation types, using geoprocessing techniques was tested for SB20 Purus map. The approach concerns the integration of different scales and projections data, so two datasets were considered: defores...</p> <div class="credits"> <p class="dwt_author">J. D. Deoliveira</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">431</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2002103977"> <span id="translatedtitle">FLU-ISS: <span class="hlt">Sistema</span> di Sorveglianza Sentinella dell'Influenza Basata su Medici di Medicina Generale e Pediatri di Libera Scelta. Rapporto Finale Sulla Stagione Influenzale 2000-2001 (FLU-ISS: A Sentinel Surveillance Network for Influenza Relying on General Practitioners and Pediatricians. Report for the Period 2000-2001).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">During the first year of surveillance, the sentinel network was a valuable tool for describing the epidemiology of influenza in Italy. In addition it provided information for defining the baseline in order to allow comparison in the future. For this reaso...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2000-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">432</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2004105444"> <span id="translatedtitle">FLU-ISS: <span class="hlt">Sistema</span> di Sorveglianza Sentinella dell'Influenza Basata su Medici di Medicina Generale e Pediatri di Libera Scelta. Rapporto sulla Stagione 2002-2003. (FLU-ISS: A Sentinel Surveillance Network for Influenza Relying on General Practitioners and Pediatricians. Report for the Period 2002-2003.)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The sentinel network is a valuable tool for describing the epidemiology of influenza in Italy. In addition it provides information for defining the baseline in order to allow comparison in the future. Beginning from the flu season (2000-2001), sentinel su...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">433</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2004101094"> <span id="translatedtitle">FLU-ISS. <span class="hlt">Sistema</span> di sorveglianza sentinella dell'influenza basata su medici di medicina generale e pediatri di libera scelta. Rapporto sulla stagione 2001-2002 (FLU-ISS. A Sentinel Surveillance Network for Influenza Relying on General Practitioners and Pediatricians. Report for the Period 2001-2002).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The sentinel network is a valuable tool to describe the epidemiology of influenza in Italy. In addition it provides information for defining the baseline in order to allow comparison in the future. Beginning from the flu season 2000- 2001, the sentinel su...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">434</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2006102480"> <span id="translatedtitle">FLU-ISS. <span class="hlt">Sistema</span> di Sorveglianza Sentinella dell/Influenza Basata su Medici di Medicina Generale e Pediatri di Libera Scelta. Rapporto sulla Stagione Influenzale 2004-2005. (FLU-ISS. A Sentinel Surveillance Netowrk for Influenza Relying on General Practitioners and Pediatricians. Report for the period 2004-2005.)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The sentinel network is a valuable tool for describing the epidemiology of influenza in Italy. In addition it provides information for defining the baseline in order to allow comparison in the future. Beginning from the flu season (2000-2001), sentinel su...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">435</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=evaluacion&pg=3&id=ED373922"> <span id="translatedtitle">Para Candidatos en Programas de Centros de Cuidado y Educacion Infantil con Bebes y "Toddlers": Asociado en Desarrollo Infantil <span class="hlt">Sistema</span> de Evaluacion y Normas de Competencia CDA (Infant/Toddler Caregivers in Center-Based Programs: The Child Development Associate Assessment System and Competency Standards).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">This Spanish-language booklet outlines the requirements of the Child Development Associate (CDA) credential for caregivers working in center-based infant and toddler day care programs. Part 1 provides an overview of the CDA credentialing system and the various options, settings, standards, and stages of the CDA assessment system. Part 2 explains…</p> <div class="credits"> <p class="dwt_author">Council for Early Childhood Professional Recognition, Washington, DC.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">436</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=evaluacion&pg=3&id=ED373921"> <span id="translatedtitle">Para Candidatos en Programas de Centros de Cuidado y Educacion Infantil con Ninos de Edad Pre-escolar: Asociado en Desarrollo Infantil <span class="hlt">Sistema</span> de Evaluacion y Normas de Competencia CDA (Preschool Caregivers in Center-Based Programs: The Child Development Associate Assessment System and Competency Standards).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">This Spanish-language booklet outlines the requirements of the Child Development Associate (CDA) credential for preschool teachers or caregivers who work in center-based preschool day care programs. Part 1 provides an overview of the CDA credentialing system and the various options, settings, standards, and stages of the CDA assessment system.…</p> <div class="credits"> <p class="dwt_author">Council for Early Childhood Professional Recognition, Washington, DC.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">437</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=N7830991"> <span id="translatedtitle">Information System in the Planning Process: Discussion of the Cargo Transportation Situation in the Rio Sao Paulo Area O Papel de <span class="hlt">Sistema</span> de Informacoes No Processo de Planejamento: Discussao Utilizando a Situacao Do Transporte de Cargas No Eixo Rio-Sao Paulo.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">An example of an information system, to be used within a planning process, is presented. The chosen area is the interurban load transportation. Two modes of transportation are approached, the highway and the the railway. The information system consists of...</p> <div class="credits"> <p class="dwt_author">A. A. R. Filho</p> <p class="dwt_publisher"></p> <p class="publishDate">1977-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">438</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58420018"> <span id="translatedtitle">Exchange Rate Systems and Adjustment in Planned Economies (Régimes de change et ajustement dans les pays à économie planifiée) (El papel de los <span class="hlt">sistemas</span> cambiarios y del ajuste en las economías de planificación centralizada)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The U.S.S.R., the German Democratic Republic, Poland (in the 1970s), and Hungary represent within the Council for Mutual Economic Assistance (CMEA) a spectrum of the extent to which decisions on foreign trade have been decentralized and the exchange rate has taken on a direct role in determining prices. To the extent that these developments have occurred, the exchange rate has</p> <div class="credits"> <p class="dwt_author">Thomas A. Wolf</p> <p class="dwt_publisher"></p> <p class="publishDate">1985-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">439</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=N8511431"> <span id="translatedtitle">Desenvolvimento e Teste de um <span class="hlt">Sistema</span> de Fiscali Zacao das Operacoes de Credito Agricola AO Nivel de Municipio E de Propriedades Agricolas Utilizando Tecnicas de Sensoriamento Remoto (Development and Testing of a Rural Credit Supervision System at the Level of Counties and Rural Properties Utilizing Remote Sensing Techniqes).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">Remote sensing techniques for supporting the rural credit supervision system were developed and tested. The test area comprised the counties of Aracatuba and Guararapes, located in the State of Sao Paulo. Aerial photography, LANDSAT images and topographic...</p> <div class="credits"> <p class="dwt_author">G. T. Batista A. M. Delima A. T. Tardin B. F. T. Rudorff F. J. Mendonca</p> <p class="dwt_publisher"></p> <p class="publishDate">1984-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">440</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2007111252"> <span id="translatedtitle">Workshop Nazionale (6th) Enter-Net Italia <span class="hlt">Sistema</span> di Sorveglianza delle Infezioni Enteriche. Le Tossinfezioni Alimentari: Sorveglianza e Controllo, Roma, Maggio 17-18, 2007. Riassunti (National Workshop (6th) Enter-Net Italia. Surveillance System of Enteric Infections. Foodborne Infections: Surveillance and Control. Held in Rome on May 17-18, 2007. Abstract Book).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">Enter-net is an international network for the surveillance of human infections with Salmonella, E. coli O157 and Campylobacter, including their antimicrobial resistance. It is funded by the European Commission and its main objectives are the harmonisation...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_21");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return 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title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">441</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ntis.gov/search/product.aspx?ABBR=PB2008102402"> <span id="translatedtitle"><span class="hlt">Sistema</span> di Prova Semi-Automatico per la Verifica della Compatibilita Elettromagnetica di un Pacemaker in Accordo agli Standard EN 45502-2-1:2004 e ANSI/AAMI PC69:2000 (Semi-Automatic System to Test the Electromagnetic Compatibility of a Pacemaker According to the Standards EN45502-2-1:2004 e ANSI/AAMI PC69:2000).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ntis.gov/search/index.aspx">National Technical Information Service (NTIS)</a></p> <p class="result-summary">The harmonized European norm EN 45502-2-1 provides the essential requirements for implantable medical devices that treat bradyarrhythmia (pacemaker) in order to guarantee safety for the patient. On the electromagnetic compatibility of such devices in the ...</p> <div class="credits"> <p class="dwt_author">A. Delogu E. Mattei F. Censi G. Calcagnini M. Triventi</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">442</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.abep.nepo.unicamp.br/docs/anais/pdf/2002/gt_trb_st10_camarano_texto.pdf"> <span id="translatedtitle">Envelhecimento, Condições de Vida e Política Previdenciária. Como ficam as mulheres?*1</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">1 INTRODUÇÃO Historicamente, os <span class="hlt">sistemas</span> previdenciários foram constituídos com base nos contratos de gênero, onde o homem assumia o papel de provedor e a mulher, o de cuidadora da casa, das crianças, dos idosos, ou seja, dos dependentes. Isso delimitava, claramente, a posição de dependência da mulher para o <span class="hlt">sistema</span>. Desde a segunda metade do século passado, tem-se observado mudanças</p> <div class="credits"> <p class="dwt_author">Ana Amélia Camarano; Maria Tereza Pasinato</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">443</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58827810"> <span id="translatedtitle">Crisis sanitaria y crisis económica en EE.UU: ¿Cómo están relacionadas?</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El profesor Navarro expone en este artículo original las ineficiencias del <span class="hlt">sistema</span> sanitario de EE.UU. y las raíces del immobilismo en política sanitaria en las recientes décadas. Destaca la regresividad, injusticia y enorme coste de la sanidad del país así como el mal de falta de cobertura e insuficiente cobertura para los asegurados. La financiación privada del <span class="hlt">sistema</span> electoral es</p> <div class="credits"> <p class="dwt_author">Vicenç Navarro</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">444</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58849421"> <span id="translatedtitle">La Comisión Interamericana de Derechos Humanos</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">En el presente artículo realizaré una descripción general del funcionamiento de la Comisión Interamericana de Derechos Humanos (en adelante “Comisión Interamericana,” Comisión o “CIDH”), hacienda particular énfasis en el <span class="hlt">sistema</span> de casos individuales. Inicialmente haré una breve reseña histórica del <span class="hlt">sistema</span> interamericano y la CIDH, para luego describir los diferentes aspectos que caracterizan el trabajo de la Comisión, incluyendo sus</p> <div class="credits"> <p class="dwt_author">Diego Rodríguez-Pinzon</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">445</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58196712"> <span id="translatedtitle">EL AMBIENTE DE CONTROL INTERNO. UN ACERCAMIENTO TEÓRICO METODOLÓGICO</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El presente artículo presenta una propuesta de un modelo y procedimiento para la implantación del ambiente de control, componente básico del <span class="hlt">sistema</span> de control interno. El marco teórico referencial de esta investigación, se sustenta en el análisis realizado de los criterios de algunos autores acerca de que el ambiente de control es el andamiaje del <span class="hlt">sistema</span> de control interno, así</p> <div class="credits"> <p class="dwt_author">Any Flor Nieves Julbe; Reynaldo Velázquez Zaldívar</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">446</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://oa.upm.es/1572/1/MANCEBO_ART_1999_01.pdf"> <span id="translatedtitle">Las técnicas GPS como herramienta en la gestión ambiental</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">RESUMEN El presente artículo describe el <span class="hlt">sistema</span> GPS y sus aplicaciones de manera general y con relación a la gestión ambiental, Se hace referencia a estudios re- lativos a múltiples aplicaciones, estudios que ya se han realizado con un nota- ble éxito. De este artículo se desprende que el <span class="hlt">sistema</span> GPS es totalmente via- ble en el campo y en</p> <div class="credits"> <p class="dwt_author">Roberto Rodríguez-Solano Suárez; Santiago Mancebo Quintana</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">447</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58199043"> <span id="translatedtitle">Las acciones preventivas y de mejora en el contexto de las organizaciones empresariales</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Se presenta una herramienta que facilita el control de las acciones preventivas y de mejora en organizaciones que tienen implantado, o pretenden implantar, el <span class="hlt">sistema</span> de dirección y gestión empresarial, y como parte de este los <span class="hlt">sistemas</span> de seguridad y salud en el trabajo, calidad, competencia del laboratorio de calibración y ambiental. La mejora es un requisito establecido en las</p> <div class="credits"> <p class="dwt_author">Rossio Coya Cáceres; Martín Alberto Ayala López; Iosvani Segura Leyva</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">448</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.inforpressca.com/municipal/boletin/espec/gestion_local_del_agua_en_los_municipios_de_chiantla_huehuetenango.pdf"> <span id="translatedtitle">“Esto no es un castigo de Dios”. Gestión local del agua en Guatemala: el caso de los municipios de Chiantla y Huehuetenango</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">En Guatemala coexisten muchos y variados <span class="hlt">sistemas</span> de gestión del agua basados en tradiciones comunitarias, los cuales han nacido mayoritariamente debido a la ausencia de servicios públicos estatales. Sin embargo, una gran proporción de la población aún tiene problemas de acceso al agua, y los conflictos sociales son frecuentes. El objetivo de este artículo es la caracterización de los <span class="hlt">sistemas</span></p> <div class="credits"> <p class="dwt_author">Gonzalo Gamboa; Rocío García; Juan Mendoza; Fernando Recancoj; Juan Diego González; Geisselle Sánchez</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">449</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.eumed.net/rev/delos/04/dbb.pdf"> <span id="translatedtitle">LA NECESIDAD DE UNA CORRECTA GESTIÓN AMBIENTAL URBANA PARA LA LOCALIDAD</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">La consideración de la temática ambiental en el espacio urbano, desde una perspectiva global es un fenómeno nuevo, al menos, en América Latina. Desde hace varias décadas, los esfuerzos por mejorar las condiciones ambientales en nuestras ciudades se limitaron a la construcción progresiva de <span class="hlt">sistema</span> de captación de agua y transporte de aguas servidas, <span class="hlt">sistemas</span> de recolección de basura, entre</p> <div class="credits"> <p class="dwt_author">Eduardo López Bastidas; Tania Goicochea Borrell</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">450</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.baldwinfilter.com/literature/spanish/3%20proof%20source%20sheets/form330s.pdf"> <span id="translatedtitle">Filtros hidráulicos PureForce TM diseñados para satisfacer o exceder los requisitos de alto rendimiento del equipo actual</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El filtro hidráulico que antes no existía en los <span class="hlt">sistemas</span> hidráulicos, ahora se ha transformado en un componente crítico. De hecho, son muy pocas las áreas de filtración que han cambiado con tanta rapidez como la hidráulica. La razón de un cambio tan rápido es que los <span class="hlt">sistemas</span> hidráulicos están reemplazando a otros tipos de transmisiones. Para mejorar la seguridad</p> <div class="credits"> <p class="dwt_author">Medio Oriente; América del Sur</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">451</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.abresbrasil.org.br/pdf/07.pdf"> <span id="translatedtitle">Avaliação da evolução dos valores pagos pelo SIH em Minas Gerais frente à inflação setorial da saúde no período de fevereiro de 1996 a maio de 2007</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Resumo Uma questão atual nas políticas públicas de saúde no Brasil é o financiamento dos prestadores de serviços médico-hospitalares do <span class="hlt">Sistema</span> Único de Saúde - SUS. Um dos meios de financiamento é o pagamento de procedimentos informados ao <span class="hlt">Sistema</span> de Informações Hospitalares - SIH, em que o valor pago deriva do número de procedimentos efetuados conforme o valor de cada</p> <div class="credits"> <p class="dwt_author">Helen Cristiny; Teodoro Couto; Juliana Ferreira Castro; Bruno Pérez Ferreira</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">452</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2003BASBr..23..199J"> <span id="translatedtitle">Um supressor de fundo térmico para a câmara infravermelha CamIV</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">O ângulo sólido subtendido pelos pixels na câmara infravermelha do NexGal (CamIV) que operamos no OPD/LNA contém contribuições provenientes do <span class="hlt">sistema</span> de coleta de fluxo propriamente dito - sendo esta a parte que interessa para as medidas astronômicas - e contribuições da obstrução central, <span class="hlt">sistema</span> de suporte do espelho secundário e região exterior à pupila de entrada do telescópio. Estas últimas contribuições são devi-das à emissão de corpo negro à temperatura ambiente e aumentam exponencialmente para comprimentos de onda maiores que 2 micra (banda K, no infravermelho próximo). Embora a resultante pode ser quantificada e subtraída dos sinais relevantes, sua variância se adiciona à variância do sinal, e pode ser facilmente a contribuição domi-nante para a incerteza final das medidas, tornando ineficiente o processo de extração de informação e degradando a sensibilidade da câmara. A maneira clássica de resolver esse problema em <span class="hlt">sistemas</span> ópticos que operam no infravermelho, onde os efeitos da emissão térmica do ambiente são importantes, é restringir o ângulo sólido subtendido pelos pixels individuais exclusivamente aos raios provenientes do <span class="hlt">sistema</span> óptico. Para tanto, projeta-se uma imagem real, bastante reduzida, da pupila de entrada do <span class="hlt">sistema</span> óptico num anteparo que transmita para o <span class="hlt">sistema</span> de imageamento só o que interessa, bloqueando as contribuições das bordas externas à pupila de entrada, obstrução central do telescópio e <span class="hlt">sistema</span> de suporte. Como a projeção é realizada em ambiente criogênico, a contribuição térmica espúria é efetivamente eliminada. Nós optamos por um <span class="hlt">sistema</span> do tipo Offner para implementar na prática esta função. Trata-se de um <span class="hlt">sistema</span> baseado em espelhos esféricos, bastante compacto e ajustado por construção. A opção por espelhos do mesmo material que o <span class="hlt">sistema</span> de suporte (Alumínio) minimiza a dilatação diferencial, crítica nesse tipo de aplicação. Apresentamos as soluções detalhadas do projeto óptico-mecânico, bem como uma análise de flexões e desempenho em termos de qualidade de imagem.</p> <div class="credits"> <p class="dwt_author">Jablonski, F.; Laporte, R.</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">453</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.caei.com.ar/es/programas/di/20.pdf"> <span id="translatedtitle">Blanqueo de capitales y lavado de dinero: su concepto, historia y aspectos operativos</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Hoy en día el lavado o reciclaje de dinero es percibido por la comunidad internacional como uno de los <span class="hlt">principales</span> problemas, frente al cual la actividad criminal ocupa la atención de todas las autoridades relacionadas con el tema. Los países son conscientes de la difícil situación de establecer un criterio uniforme precisamente porque las realidades de cada nación son diversas</p> <div class="credits"> <p class="dwt_author">Bruno Tondini</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">454</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.cancer.gov/espanol/cancer/lineas-vitales/pancreas/Lifelines-Pancreatic-Cancer-SPA-2013"> <span id="translatedtitle">Lifelines-Pancreatic-Cancer-SPA-2013</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.cancer.gov">Cancer.gov</a></p> <p class="result-summary">LOS HISPANOS Y EL CÁNCER DE PÁNCREAS: COSAS PARA SABER por el Instituto Nacional del Cáncer Una de las causas <span class="hlt">principales</span> de muerte relacionadas con el cáncer en los hispanos o latinos de los Estados Unidos es una enfermedad poco común pero con frecuencia</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">455</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ddd.uab.cat/pub/athdig/15788946n9a11.pdf"> <span id="translatedtitle">Imaginario Social: Una aproximación</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">En este texto presentamos una revisión, -a modo de ejercicio de reflexión colectiva-, de la extensa producción bibliográfica de Michel Maffesoli, buscando articular desde los supuestos presentes en su obra, la noción de imaginario social. Para comprender el contexto de producción de este sociólogo francés, hemos comenzado por hacer una breve revisión de sus <span class="hlt">principales</span> trabajos e influencias teóricas. Posteriormente</p> <div class="credits"> <p class="dwt_author">Ricardo Espinoza; Raúl García; Martín Holzknecht; Carolina Jiménez</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">456</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://boletines.secv.es/upload/20090505111936.200140253.pdf"> <span id="translatedtitle">Correlación entre la estructura de bandas y las propiedades físicas de óxidos cerámicos de estructura perovskita con metales de transición (I): Propiedades de conducción electrónica</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">En este artículo se revisa los <span class="hlt">principales</span> modelos teóricos, que pretenden dar una explicación sobre las propiedades de con- ducción electrónica de óxidos cerámicos con estructura perovskita, que incluyen en la posición B metales de transición del primer período (Fe, Co, Ni, Mn), en conexión con su estructura de bandas y el carácter de sus electrones más externos, así como</p> <div class="credits"> <p class="dwt_author">L. SÁNCHEZ; J. R. JURADO</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">457</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.upo.es/RevMetCuant/art19.pdf"> <span id="translatedtitle">Consecuencias del efecto Bullwhip según distintas estrategias de gestión de la cadena de suministro: modelado y simulación = Bullwhip Effect Consequences according to Different Supply Chain Management Strategies: Modelling and Simulation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El efecto Bullwhip es uno de los <span class="hlt">principales</span> causantes de las inestabilidades en el proceso de gestión de demanda que se producen a lo largo de la cadena de suministro. El presente artículo expone un modelo capaz de recrear diferentes escenarios para la gestión de demanda en una cadena de suministro determinada, con independencia del número de niveles definidos en</p> <div class="credits"> <p class="dwt_author">Francisco Campuzano Bolarín; Francisco Cruz Lario Esteban; Lorenzo Ros McDonnell</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">458</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58199017"> <span id="translatedtitle">Análisis del papel que ejercen las competencias laborales en el personal que integra la cadena de suministro</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El personal logístico es un componente esencial en el análisis de las cadenas de suministros, pues estos son los encargados de lograr que funcione de forma integrada y efectiva. La cadena de suministro es un escalón superior de desarrollo y se encarga de gestionar los flujos desde los proveedores <span class="hlt">principales</span> hasta el cliente final. Para alcanzar la satisfacción de los</p> <div class="credits"> <p class="dwt_author">Neyfe Sablón Cossío; Yadney Osmaida Miranda Lorenzo; Alberto Medina León; José Antonio Acevedo Suárez; Varna Hernández Junco</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">459</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://bdigital.eafit.edu.co/bdigital/HEMEROTECA/HRU038/153Revista.pdf"> <span id="translatedtitle">Mejoramiento de la gestión logística de las empresas afi liadas a Acoplásticos: diagnóstico y recomendaciones</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El artículo presenta los resultados, diagnóstico, conclusiones y recomendaciones correspondientes a la investigación sobre las <span class="hlt">principales</span> actividades logísticas de las empresas afi liadas a Acoplásticos, con énfasis en el sector de empaques y envases. Se realizó un estudio durante cerca de 10 meses, aprobado por la Asociación Colombiana de Industrias Plásticas (Acoplásticos) y con el apoyo fi nanciero de la</p> <div class="credits"> <p class="dwt_author">Fabio Novoa Rojas; Pilar Sepúlveda Calderón</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">460</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/49648153"> <span id="translatedtitle">Dinosaurs of Italy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In recent years, the idea that Italy was lacking dinosaurs has been denied by a striking series of finds. Several Triassic and Jurassic dinosaur tracksites were discovered in the mid-eastern Alps, in particular within the Dolomia <span class="hlt">Principale</span> Fm. (Norian) and the Calcari Grigi Fm. (Hettangian to Pliensbachian), while thousands of Cretaceous (Santonian) prints came to light in Puglia (southern Italy).</p> <div class="credits"> <p class="dwt_author">Cristiano Dal Sasso</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_22");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return 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showDiv("page_25");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">461</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.asobancaria.com/upload/docs/docPub2456_2.pdf"> <span id="translatedtitle">La culpa es del Yankee: Correlaciones e ineficiencias en el mercado de dinero</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Los cambios en las tasas de interés de los bonos globales colombianos -mecanismo de transmisión de las presiones de los mercados internacionales sobre el mercado localson los <span class="hlt">principales</span> causantes de las fluctuaciones en el mercado de dinero doméstico. Este fenómeno parece haberse acentuado incluso después de que los problemas del mercado de TES de fin de 2002 indujeron la conformación</p> <div class="credits"> <p class="dwt_author">Santiago Gutiérrez V; Michel Formisano P</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">462</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/37032803"> <span id="translatedtitle">Jeu de hasard et consommation de substances psychotropes: prévalence, coexistence et conséquences</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Ce texte examine la relation entre le jeu pathologique et la toxicomanie chez les adultes et chez les jeunes. Pour chacune des populations étudiées, nous présentons les <span class="hlt">principales</span> caractéristiques ainsi que la prévalence de chaque problème, puis la prévalence de la double-problématique. Chez les adultes, la dépendance à l'alcool ou aux drogues serait au moins cinq fois plus élevée dans</p> <div class="credits"> <p class="dwt_author">Louise Arseneault; Robert Ladouceur; Frank Vitaro</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">463</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://128.118.178.162/eps/pe/papers/0511/0511007.pdf"> <span id="translatedtitle">Tributación Simplificada para Pequeñas y Microempresas: Análisis y Propuesta de Reforma para el Caso Chileno</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Este trabajo analiza las <span class="hlt">principales</span> debilidades de los actuales regímenes simplificados de tributación a la renta en Chile y propone un nuevo modelo para la tributación dirigido a la pequeña y microempresa (PYME). El diagnóstico indica que los actuales regímenes simplificados son, en general, efectivos en reducir los costos de cumplimiento. No obstante, detecta tres deficiencias que perjudican fuertemente su</p> <div class="credits"> <p class="dwt_author">Patricio Barra</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">464</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.firp.ula.ve/archivos/material_web_4xx/04_OGST_Saniere.pdf"> <span id="translatedtitle">Pipeline Transportation of Heavy Oils, a Strategic, Economic and Technological Challenge</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Résumé — Transport en conduite des bruts lourds, un dé fi straté gique, é conomique et technologique — En raison de ré serves trè s abondantes situé es <span class="hlt">principalement</span> au Venezuela et au Canada, les bruts lourds repr ésentent une abondante source d'é nergie. Ils permettraient, en effet, non seulement de répondre aux besoins énergétiques qui ne cessent de cro</p> <div class="credits"> <p class="dwt_author">A. Saniere; I. Hénaut; J. F. Argillier</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">465</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ief.es/documentos/recursos/publicaciones/revistas/hac_pub/160_Bosch.pdf"> <span id="translatedtitle">La capacidad redistributiva y estabilizadora del presupuesto del gobierno central español</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El objetivo de este trabajo es estimar los efectos redistributivo y estabilizador\\/asegurador del presupuesto de la Administración Pública Central española en el período 1991-1996 a nivel regional. Este análisis se lleva a cabo para el conjunto del presupuesto a través de los saldos fiscales regionales y, separadamente, para el conjunto de ingresos y gastos y sus <span class="hlt">principales</span> categorías. La metodología</p> <div class="credits"> <p class="dwt_author">NURIA BOSCH; MARTA ESPASA; PILAR SORRIBAS</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">466</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58108086"> <span id="translatedtitle">¿Son las políticas locales una buena estrategia para dinamizar el mercado de trabajo? Algunos elementos para el caso colombiano</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Resumen: En períodos de bajo crecimiento económico, tiempos de recesión o crisis económica, implementar una política fiscal contra-cíclica puede ser una herramienta fundamental para crear empleo y dinamizar la economía. En Colombia, específicamente en las <span class="hlt">principales</span> ciudades del país existe una posibilidad concreta para que los gobiernos locales, a través de incrementos del gasto de inversión, impacten positivamente en la</p> <div class="credits"> <p class="dwt_author">Diana Galvis G; Mauricio López Gonzalez</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">467</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eprints.ucm.es/9031/1/WP07-08.pdf"> <span id="translatedtitle">Liberalización financiera internacional, inversores institucionales y gobierno corporativo de la empresa</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">En este trabajo analizamos cómo la crisis de rentabilidad de los años setenta ha tratado de ser superada con el despliegue de un conjunto de contrarreformas neoliberales, siendo una de sus <span class="hlt">principales</span> vertientes la desreglamentación y liberalización de los mercados financieros internacionales. Estas medidas han dado lugar a un nuevo contexto financiero internacional caracterizado por la preeminencia de la liquidez</p> <div class="credits"> <p class="dwt_author">Bibiana Medialdea García; Nacho Álvarez Peralta</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">468</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58108834"> <span id="translatedtitle">Las corporaciones autonomas regionales del caribe colombiano: Un analisis de sus finanzas y gobierno corporativo</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Las Corporaciones Autónomas Regionales (car) y las Corporaciones de Desarrollo Sostenible (cds) son las instituciones encargadas de la protección del medio ambiente en Colombia. Este trabajo estudia el desempeño de las corporaciones que tienen jurisdicción sobre la Costa Caribe. En particular, examina sus <span class="hlt">principales</span> fortalezas y limitaciones administrativas, y analiza si en sus presupuestos se reproducen las desigualdades regionales que</p> <div class="credits"> <p class="dwt_author">Joaquin Viloria de la Hoz</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">469</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/57322684"> <span id="translatedtitle">THE FINANCING OF COOPERATIVE FOOD MARKETING AND DISTRIBUTION IN THE GREEN REVOLUTION PROGRAMME IN NIGERIA \\/ LE FINANCEMENT DES COOPÉRATIVES DE COMMERCIALISATION ET DE DISTRIBUTION DES PRODUITS ALIMENTAIRES DANS LE PROGRAMME « RÉVOLUTION VERTE » EN NIGERIA</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Cet article étudie le développement d'un système de financement aux cooperatives dont dépendent <span class="hlt">principalement</span> la commercialisation et la distribution des denrées alimentaires de base en Nigeria. Ces coopératives devraient commercialiser et distribuer une grande partie de la production du Programme « révolution verte », programme conduisant à une augmentation considérable de l'offre de produits alimentaires dans les années futures. On</p> <div class="credits"> <p class="dwt_author">I. I. Ihimodu</p> <p class="dwt_publisher"></p> <p class="publishDate">1985-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">470</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58197088"> <span id="translatedtitle">Sobre el principio y posterior hegemonía económico-política y militar de EE.UU tras la Segunda Guerra Mundial</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Las <span class="hlt">principales</span> tendencias de desarrollo económico y social dentro de la estructura del capitalismo moderno se expresan en EE.UU de la forma más preponderante. La posición político-militar del gigante americano lo transforma en el centro neurálgico del imperialismo mundial, al liderar el bloque del Atlántico Norte, y al llevar a cabo una política de reacción contra las fuerzas de Movimiento</p> <div class="credits"> <p class="dwt_author">José Antonio Ascanio Barrio</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">471</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58635095"> <span id="translatedtitle">Distribuació de la Cotorra de pit gris (Myiopsitta monachus) a Catalunya</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Es descriu la distribució actual de la cotorra de pit gris a Catalunya. El mapa de distribució s'ha dibuixat en base a les dades aconseguides mitjançant una enquesta. La cotorra de pit gris és una espècie escassa i localitzada que es pot observar <span class="hlt">principalment</span> a les localitats costaneres, especialment a Barcelona. La distribució actual segueix el clima temperat amb poca</p> <div class="credits"> <p class="dwt_author">Jordi Clavell; Eduard Martorell; David M. Santos; Daniel Sol</p> <p class="dwt_publisher"></p> <p class="publishDate">1991-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">472</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.cancer.gov/espanol/noticias/ReportNation2008SpanishRelease"> <span id="translatedtitle">Informe Anual a la Nación indica una reducción en los índices de incidencia y mortalidad por cáncer; una sección especial revela amplias variaciones en las tendencias del cáncer de pulmón en los estados</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.cancer.gov">Cancer.gov</a></p> <p class="result-summary">Un nuevo informe de las <span class="hlt">principales</span> organizaciones oncológicas del país muestra que, por primera vez desde la primera publicación del informe en 1998, tanto el índice de incidencia como el de mortalidad para todos los cánceres combinados están disminuyendo en hombres y mujeres.</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">473</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.cancer.gov/espanol/noticias/ReportNation2009SpanishRelease"> <span id="translatedtitle">Informe Anual a la Nación indica que los índices generales de cáncer siguen disminuyendo; su sección especial destaca las tendencias actuales y pronósticos del cáncer colorrectal</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.cancer.gov">Cancer.gov</a></p> <p class="result-summary">Los índices de casos nuevos diagnosticados y los índices de muertes de todos los tipos de cáncer combinados disminuyeron en forma considerable en el período más reciente para hombres y mujeres en general, y para la mayoría de las poblaciones raciales y étnicas de Estados Unidos, según un informe de las <span class="hlt">principales</span> organizaciones de salud y oncológicas.</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">474</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/57376286"> <span id="translatedtitle">Carencia de hierro en la infancia: Causas y consecuencias para el desarrollo infantil</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">ResumenSe comentan brevemente las causas <span class="hlt">principales</span> de la carencia de hierro (CH), seguido de un examen de los estudios sobre la CH y el desarrollo y comportamiento cognitivos y motores del niño para probar un vínculo causal, clasificando dichos estudios por su diseño. La anemia por carencia de hierro (ACH) se asocia a numerosos inconvenientes psicosociales y económicos que pueden</p> <div class="credits"> <p class="dwt_author">Sally Grantham-McGregor; Helen Baker-Henningham</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">475</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=decision+AND+aid&pg=4&id=EJ919572"> <span id="translatedtitle">Pilot Program to Focus on Performance-Based Teacher Assessments</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">To raise the bar for teacher preparation and evaluation, assessments should be based on how well teachers perform in the classroom, not how they are rated during <span class="hlt">principal-led</span> classroom observations or on written licensure tests, a new report argues. "Evaluating Teacher Effectiveness," by education policy expert and Stanford professor Linda…</p> <div class="credits"> <p class="dwt_author">Education Digest: Essential Readings Condensed for Quick Review, 2011</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">476</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58195538"> <span id="translatedtitle">LA TEORÍA DE EVOLUCIÓN DESDE UNA PERSPECTIVA HOLÍSTICA</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El presente ensayo analiza las <span class="hlt">principales</span> teorias evolutivas desde Darwin hasta la fecha, entre ellas la teoría de Lamark y la Teoría de la Quimiosintética, todas ellas con un sesgo fuertemente biologico, donde los cambios más decisivos en la homnización que se observan son: la adquisición de la postura erecta, que liberó sus extremidades anteriores y el desarrollo del cerebro,</p> <div class="credits"> <p class="dwt_author">Fredy Hardy Wompner Gallardo</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">477</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.world-pepper.org/2004/memorias2004/144_perez_moreno_wpc2004.pdf"> <span id="translatedtitle">SENSIBILIDAD IN VITRO DE AISLADOS DEL HONGO PHYTOPHTHORA CAPSICI A FUNGUICID AS</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">RESUMEN En el cultivo de chile, la incidencia de la enfermedad marchitez del chile causada por el hongo oomyceto Phytophthora capsici Leo., constituye a nivel nacional, uno de los <span class="hlt">principales</span> problemas que afectan la productividad del cultivo. El presente estudio tuvo como objetivo: conocer la respuesta de 14 aislados de Phytophthora capsici a diferentes fungicidas. Los fungicidas utilizados fueron azoxystrobin,</p> <div class="credits"> <p class="dwt_author">Luis Pérez-Moreno; Luisa Josefina Durán-Ortiz; Rafael Ramírez-Malagón; Jesús Ricardo Sánchez-Pale; Víctor Olalde-Portugal</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">478</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.up.edu.pe/ciup/SiteAssets/Lists/JER_Jerarquia/EditForm/DD-10-06.pdf"> <span id="translatedtitle">Educación superior e ingresos laborales: Estimaciones paramétricas y no paramétricas de la rentabilidad por niveles y carreras en el Perú</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Si relacionamos el logaritmo del ingreso laboral con los años de educación a través de una especificación “minceriana” tradicional obtenemos que, en el Perú, el rendimiento de un año adicional de educación sería del orden del 10%. En la primera parte de este estudio, sin embargo, encontramos que los <span class="hlt">principales</span> supuestos que permiten relacionar este porcentaje con el concepto de</p> <div class="credits"> <p class="dwt_author">Gustavo Yamada; Juan F. Castro</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">479</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.revistasice.info/cmsrevistasICE/pdfs/BICE_2904_45-62__E936CB4579187EB55B40A501499D1E0A.pdf"> <span id="translatedtitle">La desregulación de horarios comerciales: evidencias económicas del RD 6\\/2000</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">En los últimos años se observa la tendencia de desregulación de hora- rios comerciales en Europa. Los argumentos <span class="hlt">principales</span> son sociales pero también suelen incluirse algunos económicos. Ante la escasez de trabajos empíricos este artículo busca conseguir aumentar el conocimiento usando un conjunto de datos fiables sobre el periodo de desregulación comercial en España que supuso el RD 6\\/2000. El</p> <div class="credits"> <p class="dwt_author">Fernando González Astorga</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">480</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://panorama.utalca.cl/dentro/2008-jun/articulo2.pdf"> <span id="translatedtitle">Enfoques de Medición de Riesgo Operacional en la Banca An Anvanced Approach for Measuring Operational Risk</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">RESUMEN. Una de las <span class="hlt">principales</span> novedades que recoge el Acuerdo de Basilea II, publicado en junio de 2004, es la inclusión de requerimientos de capital regulatorio por riesgo operacional, uniéndose así a los ya contemplados en Basilea I sobre el riesgo de crédito y de mercado. En esta línea, el trabajo que presentamos tiene por objetivo realizar una revisión analítica</p> <div class="credits"> <p class="dwt_author">José M. Feria; José L. Martín</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_23");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' 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onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">481</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58108648"> <span id="translatedtitle">LOS CONTRATOS DE CONSTRUCCIÓN EN COLOMBIA E IMPACTO AL ADOPTAR ESTÁNDARES INTERNACIONALES DE INFORMACIÓN FINANCIERA NIC 11-</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Resumen En el presente trabajo se tratan los <span class="hlt">principales</span> aspectos contables a tener en cuenta en el manejo de los contratos de construcción en Colombia al adoptar estándares internacionales de información financiera, permitiendo visualizar el impacto que tendría en el país la adopción de la Norma Internacional de Contabilidad NIC 11 denominada Contratos de Construcción, en las empresas admitidas a</p> <div class="credits"> <p class="dwt_author">HELIO FABIO RAMÍREZ ECHEVERRY; LUIS EDUARDO SUÁREZ BALAGUERA</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">482</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58447495"> <span id="translatedtitle">Facteurs de production et résultats des groupes industriels publics de 1973 à 1981</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">[fre] Facteurs de production et résultats des groupes industriels publics de 1973 à 1981, . par J. Le Foll. . Réalisée à partir des données publiées annuellement par les <span class="hlt">principales</span> entreprises et les grands groupes industriels désormais publics, cette étude analyse l'évolution, depuis la première crise pétrolière, des principaux indicateurs concernant les facteurs de production —investissement et emploi— et les</p> <div class="credits"> <p class="dwt_author">Jean Le Foll</p> <p class="dwt_publisher"></p> <p class="publishDate">1983-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">483</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58338890"> <span id="translatedtitle">La Problemática Del Descuento En La Evaluación Económica De Proyectos Con Impacto Intergeneracional: Tasa Ambiental Crítica Y Montante De Transferencia Intergeneracional\\/Discounting In The Context Of Intergenerational Projects’ Appraisal: Environmental Discount Rate And Intergenerational Transfer Amount</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">La primera parte de este trabajo presenta una revisión teórica de las <span class="hlt">principales</span> posturas que subyacen a la controversia sobre el descuento en la evaluación mediante análisis coste-benefi cio de proyectos de amplio horizonte temporal. A continuación se expone una propuesta metodológica novedosa centrada en la utilización de una tasa de descuento diferente para benefi cios y costes que tienen</p> <div class="credits"> <p class="dwt_author">CARMEN ALMANSA SÁEZ; JAVIER CALATRAVA REQUENA</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">484</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.agrometeorologia.it/documenti/Aiam2009/76Extended_ab_fitospa.pdf"> <span id="translatedtitle">FITOSPA BASILICATA: NUOVO SERVIZIO PER LE PROBLEMATICHE FITOSANITARIE</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">La necessità di utilizzare un'unica piattaforma elettronica dove far confluire tutte le informazioni prodotte dall'Agenzia, dalla Regione Basilicata, Università e Centri di Ricerca è stata una necessità subito emersa quando il web è diventato il <span class="hlt">principale</span> veicolo delle informazioni prodotte. Il portale dei Servizi di Sviluppo Agricolo della Basilicata si compone di otto sezioni che quotidianamente vengono si aggiornano e</p> <div class="credits"> <p class="dwt_author">Emanuele Scalcione; Pietro Zienna; Camilla Nigro; Nicola Cardinale; Giovanni Lacertosa</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">485</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.banrep.gov.co/documentos/publicaciones/pdf/DTSER17-PerfilCasaquilla.pdf"> <span id="translatedtitle">Perfil socioeconómico de Barranquilla, Cartagena y Santa Marta, 1990-2000</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Este documento contiene los <span class="hlt">principales</span> indicadores económicos y sociales de Cartagena, Santa Marta y Barranquilla -ciudades portuarias de la Costa Caribe-, los cuales se analizan comparativamente frente a los de otras ciudades. Los resultados señalan que el crecimiento económico de los centros urbanos costeños, medido en términos del PIB per cápita, y sus coberturas en servicios sociales, son relativamente inferiores</p> <div class="credits"> <p class="dwt_author">María Modesta Aguilera Diaz; Jorge Luis Alvis Arrieta</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">486</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58635992"> <span id="translatedtitle">La historia de los servicios públicos en las ciudades gallegas: un programa de investigación</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">El trabajo expone los objetivos y los resultados de un programa de investigación desarrollado desde hace una década en el seno de la Universidade da Coruña, en el que se analiza la implantación y desarrollo de los <span class="hlt">principales</span> servicios públicos en las ciudades gallegas, desde una perspectiva histórica. Se parte de la constatación de la creciente importancia atribuida a las</p> <div class="credits"> <p class="dwt_author">Alberte Martínez López; Jesús Mirás Araujo</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">487</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.iadb.org/research/pub_hits.cfm?pub_id=C-103&pub_file_name=pubC-103.pdf"> <span id="translatedtitle">Colombia: Los problemas de competitividad de un país en conflicto</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">La persistencia del conflicto interno en Colombia inhibe todos los elementos <span class="hlt">principales</span> que contribuyen a la determinación de la competitividad de la economía nacional, que son los siguientes: (i) el monto de sus recursos productivos; (ii) la calidad y productividad de los mismos; (iii) la eficiencia con que operan sus mercados; (iv) el estado de su infraestructura; (v) la capacidad</p> <div class="credits"> <p class="dwt_author">Alberto Melo</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">488</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58194312"> <span id="translatedtitle">EL PRIMER AÑO DE LA UNIVERSIDAD TECNOLÓGICA DE TECÁMAC ANTE EL CAMBIO DE NIVEL DE 5A AL 5B</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Uno de los propósitos <span class="hlt">principales</span> del plan de desarrollo 2007 – 2012 y el Programa Sectorial de Educación, es elevar la calidad educativa para cubrir las necesidades del país, por tal motivo las Universidades Tecnológicas realizan un cambio en su nivel de enseñanza al ofrecer ya no solo el nivel 5B (TSU), sino también el 5B (Ingeniería), y así ampliar</p> <div class="credits"> <p class="dwt_author">Mabilia Romero Guevara</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">489</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58108673"> <span id="translatedtitle">Gestión ambiental en la industria: implantación y validación de un modelo de autocontrol</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">En los últimos años las empresas se han replanteado las relaciones que mantienen con sus <span class="hlt">principales</span> grupos de interés, aquellos que conforman los entornos en los que desarrollan sus actividades. Así, para satisfacer las expectativas de los grupos preocupados por el medio ambiente, cada vez más numerosos, las empresas empiezan a adoptar prácticas de responsabilidad social. Ésta establece que las</p> <div class="credits"> <p class="dwt_author">Carlos atienza-sahuquillo; Virginia BarBa-sánChez</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">490</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58297391"> <span id="translatedtitle">LA GESTIÓN DE RESIDUOS EN LA EMPRESA: MOTIVACIONES PARA SU IMPLANTACIÓN Y MEJORAS ASOCIADAS \\/ FIRMS’ WASTE MANAGEMENT IN THE COMPANY: MOTIVATIONS FOR THEIR IMPLEMENTATION AND ASSOCIATED IMPROVEMENTS</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Entre los problemas medioambientales actuales, la reducción o eliminación de los residuos se ha convertido en una de las <span class="hlt">principales</span> preocupaciones en los países industrializados y en una prioridad para las empresas. En el presente trabajo se realiza una revisión de los postulados del modelo económico clásico, vigente hasta hace escasas fechas, en relación con la variable medio ambiente y</p> <div class="credits"> <p class="dwt_author">Unai Tamayo Orbegozo; María Azucena Vicente Molina; Julen Izaguirre Olaizola</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">491</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.mtsn.tn.it/pubblicazioni/5/actab81s2/vol_lagotovel_026.pdf"> <span id="translatedtitle">Variabilità interannuale del fi toplancton del Lago di Tovel (Trentino, Italia)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">RIASSUNTO - Variabilità interannuale del fi toplancton del Lago di Tovel (Trentino, Italia) - Lo studio del fi toplancton del Lago di Tovel nel periodo 2002-2004 ha avuto come principali obiettivi l'analisi della variabilità interannuale delle dinamiche stagionali nel Bacino <span class="hlt">Principale</span> e nella Baia Rossa, il confronto tra le associazioni fi toplanctoniche attuali e passate (prima e dopo la scomparsa</p> <div class="credits"> <p class="dwt_author">Monica TOLOTTI; Dámaso CALLIARI; Flavio CORRADINI</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">492</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/47352809"> <span id="translatedtitle">Incontinencia fecal funcional en niños</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">ResumenLa incontinencia fecal se define como la evacuación de deposiciones fecales en un lugar inadecuado. Este molesto síntoma es el origen de malestar y turbación considerables tanto para el niño o niña como para su familia. La incontinencia fecal pediátrica puede dividirse en dos categorías <span class="hlt">principales</span>: (1) Incontinencia fecal orgánica resultante, por ejemplo, de malformaciones anorrectales o anomalías neurógenas; (2)</p> <div class="credits"> <p class="dwt_author">Marloes E. J. Bongers; Marc A. Benninga</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">493</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58210158"> <span id="translatedtitle">Alcune osservazioni sulle cause di tenuta del settore del franchising nelle fasi recessive</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">La ricerca esamina le imprese che operano in franchising attraverso microdati raccolti da Assofranchising, la <span class="hlt">principale</span> associazione italiana nel campo del franchising. Mediante tecniche esplorative e multivariate si dimostra che, ceteris paribus, un aumento della scala delle reti, basata sulla crescita delle risorse umane e materiali, ha un effetto positivo sull’efficienza aziendale attraverso il miglioramento di indicatori strategici di produttività.</p> <div class="credits"> <p class="dwt_author">Antonio Bernardi</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">494</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/57258027"> <span id="translatedtitle">Las elecciones presidenciales y legislativas en México de 2006: Lecciones para la estabilidad democrática y el futuro de las relaciones Chile-México</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Este artículo analiza las elecciones presidenciales y parlamentarias realizadas en México en julio de 2006, centrándose en cuatro aspectos <span class="hlt">principales</span>. Primero, abordamos los aspectos centrales del proceso político mexicano de la última década y la campaña presidencial. Segundo, discutimos los efectos del resultado electoral. Tercero, analizamos el difícil proceso político postelectoral, destacándose como causa explicativa de ellos la actuación del</p> <div class="credits"> <p class="dwt_author">Ricardo Gamboa Valenzuela; Eduardo Bustos Nájera</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">495</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3147993"> <span id="translatedtitle">Active Depletion of Host Cell Inhibitor-of-Apoptosis Proteins Triggers Apoptosis upon Baculovirus DNA Replication?</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Apoptosis is an important <span class="hlt">antivirus</span> defense by virtue of its impact on virus multiplication and pathogenesis. To define molecular mechanisms by which viruses are detected and the apoptotic response is initiated, we examined the antiviral role of host inhibitor-of-apoptosis (IAP) proteins in insect cells. We report here that the principal IAPs, DIAP1 and SfIAP, of the model insects Drosophila melanogaster and Spodoptera frugiperda, respectively, are rapidly depleted and thereby inactivated upon infection with the apoptosis-inducing baculovirus Autographa californica multicapsid nucleopolyhedrovirus (AcMNPV). Virus-induced loss of these host IAPs triggered caspase activation and apoptotic death. Elevation of IAP levels by ectopic expression repressed caspase activation. Loss of host IAP in both species was triggered by AcMNPV DNA replication. By using selected inhibitors, we found that virus-induced IAP depletion was mediated in part by the proteasome but not by caspase cleavage. Consistent with this conclusion, mutagenic disruption of the SfIAP RING motif, which acts as an E3 ubiquitin ligase, stabilized SfIAP during infection. Importantly, SfIAP was also stabilized upon the removal of its 99-residue N-terminal leader, which serves as a critical determinant of IAP turnover. These data indicated that a host pathway initiated by virus DNA replication and acting through instability motifs embedded within IAP triggers IAP depletion and thereby causes apoptosis. Taken together, the results of our study suggest that host modulation of cellular IAP levels is a conserved mechanism by which insects mount an apoptotic antiviral response. Thus, host IAPs may function as critical sentinels of virus invasion in insects.</p> <div class="credits"> <p class="dwt_author">Vandergaast, Rianna; Schultz, Kimberly L. W.; Cerio, Rebecca J.; Friesen, Paul D.</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">496</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3125199"> <span id="translatedtitle">A novel method to prepare L-Arabinose from xylose mother liquor by yeast-mediated biopurification</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Background L-arabinose is an important intermediate for <span class="hlt">anti-virus</span> drug synthesis and has also been used in food additives for diets-controlling in recent years. Commercial production of L-arabinose is a complex progress consisting of acid hydrolysis of gum arabic, followed by multiple procedures of purification, thus making high production cost. Therefore, there is a biotechnological and commercial interest in the development of new cost-effective and high-performance methods for obtaining high purity grade L-arabinose. Results An alternative, economical method for purifying L-arabinose from xylose mother liquor was developed in this study. After screening 306 yeast strains, a strain of Pichia anomala Y161 was selected as it could effectively metabolize other sugars but not L-arabinose. Fermentation in a medium containing xylose mother liquor permitted enrichment of L-arabinose by a significant depletion of other sugars. Biochemical analysis of this yeast strain confirmed that its poor capacity for utilizing L-arabinose was due to low activities of the enzymes required for the metabolism of this sugar. Response surface methodology was employed for optimization the fermentation conditions in shake flask cultures. The optimum conditions were: 75 h fermentation time, at 32.5°C, in a medium containing 21% (v/v) xylose mother liquor. Under these conditions, the highest purity of L-arabinose reached was 86.1% of total sugar, facilitating recovery of white crystalline L-arabinose from the fermentation medium by simple methods. Conclusion Yeast-mediated biopurification provides a dynamic method to prepare high purity of L-arabinose from the feedstock solution xylose mother liqour, with cost-effective and high-performance properties.</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">497</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4096434"> <span id="translatedtitle">Pseudo-chaotic oscillations in CRISPR-virus coevolution predicted by bifurcation analysis</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Background The CRISPR-Cas systems of adaptive <span class="hlt">antivirus</span> immunity are present in most archaea and many bacteria, and provide resistance to specific viruses or plasmids by inserting fragments of foreign DNA into the host genome and then utilizing transcripts of these spacers to inactivate the cognate foreign genome. The recent development of powerful genome engineering tools on the basis of CRISPR-Cas has sharply increased the interest in the diversity and evolution of these systems. Comparative genomic data indicate that during evolution of prokaryotes CRISPR-Cas loci are lost and acquired via horizontal gene transfer at high rates. Mathematical modeling and initial experimental studies of CRISPR-carrying microbes and viruses reveal complex coevolutionary dynamics. Results We performed a bifurcation analysis of models of coevolution of viruses and microbial host that possess CRISPR-Cas hereditary adaptive immunity systems. The analyzed Malthusian and logistic models display complex, and in particular, quasi-chaotic oscillation regimes that have not been previously observed experimentally or in agent-based models of the CRISPR-mediated immunity. The key factors for the appearance of the quasi-chaotic oscillations are the non-linear dependence of the host immunity on the virus load and the partitioning of the hosts into the immune and susceptible populations, so that the system consists of three components. Conclusions Bifurcation analysis of CRISPR-host coevolution model predicts complex regimes including quasi-chaotic oscillations. The quasi-chaotic regimes of virus-host coevolution are likely to be biologically relevant given the evolutionary instability of the CRISPR-Cas loci revealed by comparative genomics. The results of this analysis might have implications beyond the CRISPR-Cas systems, i.e. could describe the behavior of any adaptive immunity system with a heritable component, be it genetic or epigenetic. These predictions are experimentally testable. Reviewers’ reports This manuscript was reviewed by Sandor Pongor, Sergei Maslov and Marek Kimmel. For the complete reports, go to the Reviewers’ Reports section.</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">498</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4076603"> <span id="translatedtitle">Early lethality of shRNA-transgenic pigs due to saturation of microRNA pathways* #</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">RNA interference (RNAi) is considered as a potential modality for clinical treatment and <span class="hlt">anti-virus</span> animal breeding. Here, we investigate the feasibility of inhibiting classical swine fever virus (CSFV) replication by short hairpin RNA (shRNA) in vitro and in vivo. We generate four different shRNA-positive clonal cells and two types of shRNA-transgenic pigs. CSFV could be effectively inhibited in shRNA-positive clonal cells and tail tip fibroblasts of shRNA-transgenic pigs. Unexpectedly, an early lethality due to shRNA is observed in these shRNA-transgenic pigs. With further research on shRNA-positive clonal cells and transgenic pigs, we report a great induction of interferon (IFN)-responsive genes in shRNA-positive clonal cells, altered levels of endogenous microRNAs (miRNA), and their processing enzymes in shRNA-positive cells. What is more, abnormal expressions of miRNAs and their processing enzymes are also observed in the livers of shRNA-transgenic pigs, indicating saturation of miRNA/shRNA pathways induced by shRNA. In addition, we investigate the effects of shRNAs on the development of somatic cell nuclear transfer (SCNT) embryos. These results show that shRNA causes adverse effects in vitro and in vivo and shRNA-induced disruption of the endogenous miRNA pathway may lead to the early lethality of shRNA-transgenic pigs. We firstly report abnormalities of the miRNA pathway in shRNA-transgenic animals, which may explain the early lethality of shRNA-transgenic pigs and has important implications for shRNA-transgenic animal preparation.</p> <div class="credits"> <p class="dwt_author">Dai, Zhen; Wu, Rong; Zhao, Yi-cheng; Wang, Kan-kan; Huang, Yong-ye; Yang, Xin; Xie, Zi-cong; Tu, Chang-chun; Ouyang, Hong-sheng; Wang, Tie-dong; Pang, Da-xin</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">499</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23466625"> <span id="translatedtitle">Combining dasatinib with dexamethasone long-term leads to maintenance of antiviral and antileukemia specific cytotoxic T cell responses in vitro.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Maintaining graft versus leukemia (GvL) and <span class="hlt">antivirus</span> responses of cytotoxic T cells (CTLs) while suppressing graft-versus-host disease (GvHD) remains a challenge after allogeneic bone marrow transplantation. Clinical observations indicate that combining glucocorticoids with multi-tyrosine-kinase inhibitors could be a successful therapeutic approach. We and others have shown that the BCR-ABL/SRC kinase inhibitor dasatinib may enhance or suppress T cells in vitro. In this report, we evaluated combination effects of dasatinib and dexamethasone on CD3? and virus-specific CD8? T cells directly ex vivo and on antigen-specific leukemia-reactive and alloreactive CD8? T cell clones. Functional outcomes assessed included cytokine production (IL-2, IFN-?, TNF-?), degranulation (CD107a/b), activation (CD69 upregulation), proliferation, apoptosis and necrosis induction, and signal transduction. Overall, helper CD4? T cells were more sensitive to inhibitory effects of the drug combination than cytotoxic CD8? T cells and were more naive than memory T cell subsets. Of note, synergistic inhibitory effects occurred in different memory but not in naive T cell subsets. The drug combination inhibited virus-specific CD8? T cell proliferation, but left cytokine production and degranulation unaltered, which may be due to the viral memory subset composition. Dasatinib rather hampered IFN-? secretion and cytotoxic activity of human leukocyte antigen (HLA)-reactive CTLs, whereas effector functions of leukemia-reactive CTLs were maintained or enhanced when applied long term. Our data suggest that dasatinib might modulate GvL- differently than GvHD-promoting CTLs and provide a rationale to explore the drug combination further to treat GvHD while preserving GvL and antiviral CTL responses. PMID:23466625</p> <div class="credits"> <p class="dwt_author">Nerreter, Thomas; Distler, Eva; Köchel, Carolin; Einsele, Hermann; Herr, Wolfgang; Seggewiss-Bernhardt, Ruth</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-07-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">500</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3744537"> <span id="translatedtitle">Intracellular Reprogramming of Expression, Glycosylation, and Function of a Plant-Derived Antiviral Therapeutic Monoclonal Antibody</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Plant genetic engineering, which has led to the production of plant-derived monoclonal antibodies (mAbPs), provides a safe and economically effective alternative to conventional antibody expression methods. In this study, the expression levels and biological properties of the anti-rabies virus mAbP SO57 with or without an endoplasmic reticulum (ER)-retention peptide signal (Lys-Asp-Glu-Leu; KDEL) in transgenic tobacco plants (Nicotiana tabacum) were analyzed. The expression levels of mAbP SO57 with KDEL (mAbPK) were significantly higher than those of mAbP SO57 without KDEL (mAbP) regardless of the transcription level. The Fc domains of both purified mAbP and mAbPK and hybridoma-derived mAb (mAbH) had similar levels of binding activity to the Fc?RI receptor (CD64). The mAbPK had glycan profiles of both oligomannose (OM) type (91.7%) and Golgi type (8.3%), whereas the mAbP had mainly Golgi type glycans (96.8%) similar to those seen with mAbH. Confocal analysis showed that the mAbPK was co-localized to ER-tracker signal and cellular areas surrounding the nucleus indicating accumulation of the mAbP with KDEL in the ER. Both mAbP and mAbPK disappeared with similar trends to mAbH in BALB/c mice. In addition, mAbPK was as effective as mAbH at neutralizing the activity of the rabies virus CVS-11. These results suggest that the ER localization of the recombinant mAbP by KDEL reprograms OM glycosylation and enhances the production of the functional <span class="hlt">antivirus</span> therapeutic antibody in the plant.</p> <div class="credits"> <p class="dwt_author">Lee, Kyung-Jin; Kim, Young-Kwan; So, Yang-Kang; Ryu, Jae-Sung; Oh, Seung-Han; Han, Yeon-Soo; Ko, Kinarm; Choo, Young-Kug; Park, Sung-Joo; Brodzik, Robert; Lee, Kyoung-Ki; Oh, Doo-Byoung; Hwang, Kyung-A; Koprowski, Hilary; Lee, Yong Seong; Ko, Kisung</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_24");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' href="#">4</a> <a onClick='return showDiv("page_5");' href="#">5</a> <a onClick='return showDiv("page_6");' href="#">6</a> <a onClick='return showDiv("page_7");' href="#">7</a> <a onClick='return showDiv("page_8");' href="#">8</a> <a onClick='return showDiv("page_9");' href="#">9</a> <a onClick='return showDiv("page_10");' href="#">10</a> <a onClick='return showDiv("page_11");' href="#">11</a> <a onClick='return showDiv("page_12");' href="#">12</a> <a onClick='return showDiv("page_13");' href="#">13</a> <a onClick='return showDiv("page_14");' href="#">14</a> <a onClick='return showDiv("page_15");' href="#">15</a> <a onClick='return showDiv("page_16");' href="#">16</a> <a onClick='return showDiv("page_17");' href="#">17</a> <a onClick='return showDiv("page_18");' href="#">18</a> <a onClick='return showDiv("page_19");' href="#">19</a> <a onClick='return showDiv("page_20");' href="#">20</a> <a onClick='return showDiv("page_21");' href="#">21</a> <a onClick='return showDiv("page_22");' href="#">22</a> <a onClick='return showDiv("page_23");' href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a style="font-weight: bold;">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_25.0");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> </div><!-- page_25 div --> <!-- Column 1 end --> </div> </div> </div> </div> </div> </div> </div> <!-- BEGIN: footer --> <div id="footer_inner" class="osti" style="margin-left:auto;margin-right:auto;"> <div class="osti twoColLiqRtHdr"> <div id="container" class="osti"> <div id="mainContent" class="osti"> <div id="footer" class="osti"> Search capabilities provided by <a href="http://www.osti.gov">DOE/OSTI</a><br> Websites by Topic maintained by <a href="http://www.cendi.gov/">CENDI</a><br> <div align="center"><span style="font-weight:bold; font-size:9px; color:#666; line-height:14px">Some links on this page may take you to non-federal websites. <br> Their policies may differ from this site.</span></div> <div align="center"><a href="http://www.science.gov/disclaimer.html">Privacy & Security</a><br></div> <table align="center" cellpadding="2" cellspacing="0" height="14" width="178"> <tbody> <tr> <td width="124"><div align="center"><a href="http://www.usa.gov"><img src="http://www.science.gov/images/USAgov.jpg" alt="USA.gov" border="0" height="14" width="42"></a></div></td> <td width="129"><div align="center"><a href="http://worldwidescience.org"><img src="http://www.science.gov/images/wws.jpg" alt="WorldWideScience.org" border="0" height="14" width="108"></a></div></td> </tr> </tbody> </table> <a href="http://www.usajobs.gov/">USAJOBS</a> :: <a href="http://www.grants.gov/">Grants</a> :: <a href="http://www.regulations.gov/search/Regs/home.html#home">Regulations.gov</a><br> </div> </div> </div> </div> </div> <!-- END: footer --> </body> </html>