Science.gov

Sample records for principales sistemas antivirus

  1. Crispen's Five Antivirus Rules.

    ERIC Educational Resources Information Center

    Crispen, Patrick Douglas

    2000-01-01

    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…

  2. Crispen's Five Antivirus Rules.

    ERIC Educational Resources Information Center

    Crispen, Patrick Douglas

    2000-01-01

    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)

  3. ADAM: An Automatic and Extensible Platform to Stress Test Android Anti-Virus Systems

    E-print Network

    Lui, John C.S.

    ,000 and 6,000 mobile phone viruses in the Symbian and Android platforms respectively. Given the threatADAM: An Automatic and Extensible Platform to Stress Test Android Anti-Virus Systems Min Zheng a variety of malware samples for the Android platform. Specifically, ADAM can automatically transform

  4. Preparation of an antitumor and antivirus agent: chemical modification of ?-MMC and MAP30 from Momordica Charantia L. with covalent conjugation of polyethyelene glycol

    E-print Network

    Zhao, Xiaojun

    Background: Alpha-momorcharin (?-MMC) and momordica anti-HIV protein (MAP30) derived from Momordica charantia L. have been confirmed to possess antitumor and antivirus activities due to their RNA-N-glycosidase activity. ...

  5. Preparation of an antitumor and antivirus agent: chemical modification of ?-MMC and MAP30 from Momordica Charantia L. with covalent conjugation of polyethyelene glycol

    PubMed Central

    Meng, Yao; Liu, Shuangfeng; Li, Juan; Meng, Yanfa; Zhao, Xiaojun

    2012-01-01

    Background Alpha-momorcharin (?-MMC) and momordica anti-HIV protein (MAP30) derived from Momordica charantia L. have been confirmed to possess antitumor and antivirus activities due to their RNA-N-glycosidase activity. However, strong immunogenicity and short plasma half-life limit their clinical application. To solve this problem, the two proteins were modified with (mPEG)2-Lys-NHS (20 kDa). Methodology/principal findings In this article, a novel purification strategy for the two main type I ribosome-inactivating proteins (RIPs), ?-MMC and MAP30, was successfully developed for laboratory-scale preparation. Using this dramatic method, 200 mg of ?-MMC and about 120 mg of MAP30 was obtained in only one purification process from 200 g of Momordica charantia seeds. The homogeneity and some other properties of the two proteins were assessed by gradient SDS-PAGE, electrospray ionization quadruple mass spectrometry, and N-terminal sequence analysis as well as Western blot. Two polyethylene glycol (PEG)ylated proteins were synthesized and purified. Homogeneous mono-, di-, or tri-PEGylated proteins were characterized by matrix-assisted laser desorption ionization-time of flight mass spectrometry. The analysis of antitumor and antivirus activities indicated that the serial PEGylated RIPs preserved moderate activities on JAR choriocarcinoma cells and herpes simplex virus-1. Furthermore, both PEGylated proteins showed about 60%–70% antitumor and antivirus activities, and at the same time decreased 50%–70% immunogenicity when compared with their unmodified counterparts. Conclusion/significance ?-MMC and MAP30 obtained from this novel purification strategy can meet the requirement of a large amount of samples for research. Their chemical modification can solve the problem of strong immunogenicity and meanwhile preserve moderate activities. All these findings suggest the potential application of PEGylated ?-MMC and PEGylated MAP30 as antitumor and antivirus agents. According to these results, PEGylated RIPs can be constructed with nanomaterials to be a targeting drug that can further decrease immunogenicity and side effects. Through nanotechnology we can make them low-release drugs, which can further prolong their half-life period in the human body. PMID:22802682

  6. Clasificacin de las amenazas a la seguridad en sistemas RFID -EPC Gen2

    E-print Network

    Garcia-Alfaro, Joaquin

    arquitectura distribuida conocida como EPCglobal Network. Los elementos principales de un sistema RFID son las objetivo de esta arquitectura es la identificación automática de objetos en movimiento en cadenas de etiquetas 40 - 640 kbps Ratio Rx etiquetas 26.7 - 128 kbps Identificaciones por segundo 200 arquitectura

  7. El Sistema's Open Secrets

    ERIC Educational Resources Information Center

    Booth, Eric

    2011-01-01

    In this article, the author talks about Venezuela's national youth orchestra program called El Sistema whose attributes offer a direct challenge to traditional Western music practices. As U.S. classical music--and all "high arts"--struggle to find relevance to more than the small "arts club" percentage of the U.S. populace, El Sistema proposes…

  8. SISTEMAS DE GPS SERVICIO DE

    E-print Network

    Gilbes, Fernando

    SISTEMAS DE GPS .... · Q U r;G ~. em, 5 ___=-I c= _ . J5~. ~. ~ CJ. :a-" _1 ....= bf> = ~ ~ SERVICIO DE TECNICO GIS y GPS Asistencia en el manejo de GIS y GPS Inventarios de infraestructura (NPDES@gmtgis.com #12;GPS EQUIPOS Y PROGRAMAS DE GPS ---- ~ .,;.. Un GPS (Sistema de Posiciona miento Global) esta

  9. Engenharia de Sistemas e Informatica Ramo de Sistemas

    E-print Network

    Jesus, Sérgio M.

    cedido a t´itulo gratuito e para ser utilizado exclusivamente como texto de apoio da disciplina de Comunica¸c~oes Di- gitais do curso de Engenharia de Sistemas e Inform´atica da Universidade do Algarve

  10. Engenharia de Sistemas e Informatica (Ramo de Sistemas)

    E-print Network

    Jesus, Sérgio M.

    de apoio foi inicialmente escrito para a disciplina de Sistemas de Comunica¸c~ao, do curso de material contido neste conjunto de apontamentos ´e cedido a t´itulo gratuito e para ser utilizado exclusivamente como texto de apoio `a disciplina de Fundamentos de Telecomunica¸c~oes do curso de Engenharia de

  11. Sistemas de Decisin Celular con Mltiples Posiciones

    E-print Network

    Enciso, Germán

    Sistemas de Decisión Celular con Múltiples Posiciones Germán podemos hacer mejores mediciones a nivel molecular, la biología celular ha individuales. DECISION CELULAR Uno de los sistemas mas estudiados en

  12. Thoughts on Seeing "El Sistema"

    ERIC Educational Resources Information Center

    Booth, Eric

    2009-01-01

    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…

  13. Knowledge Exchange with Sistema Scotland

    ERIC Educational Resources Information Center

    Allan, Julie; Moran, Nikki; Duffy, Celia; Loening, Gica

    2010-01-01

    This paper reports on a knowledge exchange project, funded by the Scottish Funding Council and undertaken by a group of researchers from three higher education institutions in Scotland and the project partner, Sistema Scotland. This newly established charity is attempting to implement a major programme of social change, developed in Venezuela,…

  14. Jean Davallon PRINCIPALES PUBLICATIONS

    E-print Network

    Avignon et des Pays de Vaucluse, Université de

    communicationnelle de la patrimonialisation. Paris : Hermès Sciences-Lavoisier (Coll. « Communication, médiation et / sous la direction de Cécile Tardy & Yves Jeanneret. Paris : Hermès Sciences-Lavoisier (Coll

  15. Subprograma de Sistemas de Informacin Geogrfica

    E-print Network

    Gilbes, Fernando

    permite evaluar las características ambientales y físicas de los terrenos? Presencia de: Suelos Sistemas y la clasificación de suelo. #12;Metodología ¿Como el PRI brinda información sobre los planes de

  16. Engenharia de Sistemas e Informatica (ex -Eng. de Sistemas e Computac~ao)

    E-print Network

    Jesus, Sérgio M.

    de apoio foi inicialmente escrito para o Curso de Inform´atica de Sistemas, disciplina anual de disciplina de An´alise de Circuitos, do curso de Engenharia de Sistemas e Computa¸c~ao em 1994/95. Ao longo¸c~ao do curso de LESC para LESI foi de novo, e de acordo com o programa indicativo proposto em Senado

  17. El Sistema and American Music Education

    ERIC Educational Resources Information Center

    Lesniak, Melissa

    2012-01-01

    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…

  18. Una possibile estensione del sistema "balanced scorecard" Pier Franco Camussone

    E-print Network

    Una possibile estensione del sistema "balanced scorecard" Pier Franco Camussone 1 Dipartimento, I-38100, Trento paolo.giorgini@dit.unitn.it Sommario. Il sistema delle Balanced Scorecard, proposto estensione del sistema delle Balanced Scorecard che prevede un più raffinato insieme di relazioni tra

  19. Sistemas de Informao para a Web: Arquitecturas Aplicacionais

    E-print Network

    da Silva, Alberto Rodrigues

    1 Sistemas de Informação para a Web: Arquitecturas Aplicacionais Alberto Silva IST/INESC Rua Alves arquitecturas de sistemas de informação para a Web, designadamente baseadas em actividades computacionais (1. 1.1 Palavras-chave Web, Arquitecturas de Sistemas de Informação, SIW, CGI, SSI, Java, ORB. 2

  20. Engenharia Eltrica DESENVOLVIMENTO DE SISTEMAS DE AQUISIO, PROCES-

    E-print Network

    Carvalho, João Luiz

    variabilidade da freqüência cardíaca, ou HRV (heart rate variability). A análise da HRV permite avaliar o análise de HRV. [METODOLOGIA] O primeiro passo foi concluir o sistema de análise de HRV, implementado em, respiração, entre outros. [RESULTADOS] O sistema de análise de HRV foi concluído. O programa pode ser

  1. Simulacin Paralela de Sistemas de Sucesos Jos Miguel Alonso

    E-print Network

    Miguel-Alonso, José

    1 Simulación Paralela de Sistemas de Sucesos Discretos José Miguel Alonso Dept. Arquitectura y propuestas de diseño en arquitectura de computadores. Revisamos dos formas básicas de simular sistemas arquitectura de computadores exige el desarrollo de simuladores que permitan predecir, con cierto grado de

  2. Calibração do sistema imageador do telescópio MASCO

    NASA Astrophysics Data System (ADS)

    Mejía, J.; D'Amico, F.; Villela, T.; Braga, J.

    2003-08-01

    O MASCO (MÁScara COdificada) é um telescópio imageador de raios-X e gama atualmente configurado para operar na faixa de 50 a 600 keV com uma resolução angular de 14 minutos de arco num campo de visada total circular de 23,5° de diâmetro. O MASCO está totalmente operacional e deverá ser lançado em um balão estratosférico no segundo semestre de 2003 para realizar observações durante ~20 horas a ~40 km de altitude. O telescópio utiliza uma máscara codificada de padrão uniformemente redundante modificado (MURA) de dimensões 19 ´ 19. Esse padrão pertence a uma subclasse de MURAs que apresenta anti-simetria de 90° e conseqüentemente permite a utilização da técnica de subtração de variações sistemáticas de ruído de fundo através de utilização da configuração anti-máscara, obtida com uma simples rotação da máscara. Neste trabalho apresentamos resultados de calibrações em laboratório que tiveram como objetivo testar o sistema imageador. Imagens de fontes radioativas foram obtidas com o telescópio em configuração de vôo, com a máscara girando. Serão discutidos os resultados desses testes e as técnicas desenvolvidas para eliminar ambigüidades de posição de fontes, otimização da relação sinal-ruído e observação de fontes fora do campo totalmente codificado. O sistema de máscara/antimáscara mostrou-se capaz de aumentar a relação sinal-ruído de ~60% para fontes intensas (100 s). Com a máscara girando, a técnica de reconstrução de imagens desenvolvida identificou a posição exata da fonte e não introduziu perda de sensibilidade. Imagens de uma fonte colocada a 8,3° - fora do campo totalmente codificado do telescópio -, mostraram uma diminuição de ~40% na relação sinal/ruído em relação ao centro do campo de visada, o que se deve à codificação incompleta pela máscara e à absorção parcial do fluxo pelos detectores de blindagem.

  3. Oficina de Ordenacin Territorial Sistemas de Informacin Geogrfica

    E-print Network

    Gilbes, Fernando

    colaboración con el U.S.G.S. estudios de calidad de agua en los cuerpos de agua y los acuíferos de Ponce como base de datos. Este sistema nos provee herramientas para mantener control de calidad en parte del

  4. A MODERNIZAO DOS SISTEMAS DE INFORMAO DE BARRAGENS: O SISTEMA GESTBARRAGENS

    E-print Network

    da Silva, Alberto Rodrigues

    encetar mudanças partindo de duas posturas básicas: a ruptura, ou seja, a reinvenção de processos e meios, ou a continuidade, ou seja, a reavaliação de processos e meios. Porém, só podem existir alterações de refere aos meios tecnológicos de implementação de um sistema de informação, e com a CPPE/EDP como

  5. Sistemas Correctores de Campo Para EL Telescopio Cassegrain IAC80

    NASA Astrophysics Data System (ADS)

    Galan, M. J.; Cobos, F. J.

    1987-05-01

    El proyecto de instrumentación de mayor importancia que ha tenido el Instituto de Astrofisica de Canarias en los últimos afios ha sido el diseflo y construcción del te1escopio IAC8O. Este requería del esfuerzo con junto en mec´nica, óptica y electrónica, lo que facilitó la estructuración y el crecimiento de los respectivos grupos de trabajo, que posteriormente se integraron en departamentos En su origen (1977), el telescopio IAC80 fue concebido como un sistema clásico tipo Cassegrain, con una razón focal F/i 1.3 para el sistema Casse grain y una razón focal F/20 para el sistema Coudé. Posteriormente, aunque se mantuvo la filosofia de que el sistema básico fuera el F/11.3, se consideró conveniente el diseño de secundarios para razones focales F/16 y F/32, y se eliminó el de F/20. Sin embargo, dada la importancia relativa que un foco estrictamente fotográfico tiene en un telescopio moderno, diseñado básicamente para fotometría fotoeléctrica y con un campo util mínimamente de 40 minutos de arco, se decídió Ilevar a cabo el diseño de un secundario F/8 con un sistema corrector de campo, pero que estuviera formado únicamente por lentes con superficies esféricas para que asl su construcción fuera posible en España ó en México. La creciente utilización de detectores bidimensionales para fines de investigación astron6mica y la viabilidad de que en un futuro cercano éstos tengan un área sensible cada vez mayor, hicieron atractiva la idea de tener diseñado un sistema corrector de campo para el foco primario (F/3), con un campo útil mínimo de un grado, y también con la limitante de que sus componentes tuvieron sólamente supérficies esféricas. Ambos diseños de los sis-temas correctores de campo se llevaron a cabo, en gran medida, como parte de un proyecto de colaboración e intercambio en el área de diseño y evaluación de sistemas ópticos.

  6. Arquitecturas de Sistemas de Informao de Referncia para Atendimento Multicanal na Administrao Pblica

    E-print Network

    da Silva, Alberto Rodrigues

    Arquitecturas de Sistemas de Informação de Referência para Atendimento Multicanal na Administração heterogénea em termos das tecnologias utilizadas. Propõe-se então uma arquitectura de sistemas de informação de arquitectura empresarial e alinhamento, como ferramen

  7. El Sistema de Referencia Celeste convencional de la IAU

    NASA Astrophysics Data System (ADS)

    Arias, E. F.

    La Unión Astronómica Internacional (IAU) recomendó la adopción de un nuevo sistema de referencia celeste baricéntrico cuyo plano fundamental y origen de ascensiones rectas estén próximos, respectivamente, al ecuador y equinoccio dinámicos J2000.0. El nuevo sistema de referencia estará materializado por las posiciones J2000.0 de radiofuentes extragalácticas determinadas con la técnica de interferometría de larga línea de base (VLBI). El Working Group on Reference Frames de la IAU (WGRF) decidió adoptar (Grasse, 1995) al sistema de referencia celeste extragaláctico del Servicio Internacional de la Rotación Terrestre (IERS) como futuro sistema de referencia celeste convencional bajo el nombre International Celestial Reference System (ICRS) y encomendó su mantenimiento futuro al IERS. El marco de referencia que materializará al ICRS contiene posiciones precisas J2000.0 de más de 600 radiofuentes extragalácticas. Las coordenadas fueron ajustadas en una única solución VLBI en la cual se incluyeron todas las observaciones realizadas hasta octubre de 1995 con la técnica de adquisición de datos VLBI Mark III. Para minimizar los errores sistemáticos que pueden afectar la calidad del marco de referencia se introdujeron mejoras sustanciales en la modelización y en la selección de datos. Un subconjunto de objetos del marco de referencia se utilizó para referir las posiciones estelares determinadas con el satélite astrométrico Hipparcos al ICRS.

  8. Aprendizaje Evolutivo de Sistemas Difusos Jerarquicos en Serie

    E-print Network

    Casillas Barranquero, Jorge

    objetivos para el sistema: la ra´iz del error cuadr´atico medio (precisi´on) y el n´umero de reglas complejidad del proceso no per- mita un modelo matem´atico preciso para poder solucio- narlo. Tienen numerosas

  9. Carla Guerrini Calcolo Numerico e Programmazione 1 Il software: cenni sul sistema

    E-print Network

    Guerrini, Carla

    Programmazione 5 Il sistema operativo (III) Monotasking (una sola applicazione per volta ) oppure multitasking, 98, 2000, NT, XP. Interfaccia grafica, multitasking. Apple Macintosh System 8. Sistema proprietario installato sui Macitosh della Apple. Interfaccia grafica, multitasking. Linux: e' un sistema tipo UNIX

  10. REGIMENTO DO CURSO DE PS-GRADUAO EM CINCIA DO SISTEMA TERRESTRE

    E-print Network

    REGIMENTO DO CURSO DE PÓS-GRADUAÇÃO EM CIÊNCIA DO SISTEMA TERRESTRE TÍTULO I DA ORGANIZAÇÃO Art. 1 - O Curso de Doutorado em Ciência do Sistema Terrestre do INPE tem como objetivo a formação de ambientais regionais e globais. Art. 2 - O Curso de Ciência do Sistema Terrestre (PG-CST) reger-se-á pelo

  11. Arquitectura del Sistema de Gestin del ancho de Banda y Proteccin (SGBP) para entornos de redes

    E-print Network

    Ortega, Eusebi Calle

    Arquitectura del Sistema de Gestión del ancho de Banda y Protección (SGBP) para entornos de redes}@eia.udg.es Resumen. En el presente artículo se describe la arquitectura de un sistema inte- gral de gestión del ancho 4 detalla la arquitectura propuesta del sistema. Por último, se presentan las conclusiones y futuros

  12. Sistema Planeta-Satélite. Simulación orbital y potenciales gravitatorios

    NASA Astrophysics Data System (ADS)

    Medina, C.; Carrillo, M.

    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.

  13. Gerenciamento de sistemas GNU/Linux: do computador pessoal `a rede corporativa

    E-print Network

    Gerenciamento de sistemas GNU/Linux: do computador pessoal `a rede corporativa Daniel Weingaertner-UFPR) Gerenciamento de sistemas GNU/Linux DCC/Udesc 1 / 37 #12;1 Apresenta¸c~ao 2 Breve Hist´orico do GNU/Linux 3 GNU/Linux Servidores Virtuais 8 Conclus~ao Daniel Weingaertner (C3SL-UFPR) Gerenciamento de sistemas GNU/Linux DCC

  14. Modelagem Matematica de Sistemas 10 de marco de 2008

    E-print Network

    Rosa, Ricardo M. S.

    ´igidos 57 1. Representa¸c~ao do movimento de um corpo r´igido 57 2. Energia cin´etica de um corpo r´igido 60 75 Cap´itulo 7. Sistemas cont´inuos 77 1. Exemplos 77 2. Conserva¸c~ao de energia 80 Cap´itulo 8 de um corpo de massa m > 0 em queda livre vertical ao longo do eixo z, dado na forma ¨z = -g, onde g

  15. Prcticas de Ecologa. 3 de Biologa, UAM APROXIMACIN A LOS SISTEMAS ACUTICOS LTICOS

    E-print Network

    Seoane, Javier

    : MUESTREO, TRATAMIENTO DE DATOS E ÍNDICES DE CALIDAD DEL AGUA. (1 Muestreo y 1 Sesión) Muestreo Introducción Los sistemas de aguas continentales se clasifican de acuerdo a sus características fisico- químicas y según el eje que define su funcionalidad, es decir, por ejemplo, en los sistemas de aguas tranquilas

  16. H cada vez mais raparigas no sis-tema de ensino, elas tm melhores

    E-print Network

    Instituto de Sistemas e Robotica

    educação e ci- dadania -- , o ar do tempo é outro. Será que, afinal, são os homens o sexo frágil, e que de ambos os sexos pelo sistema educativo gera divergências. As maiores polemicas aconte cem nos sistema educativo pa- ra ajudar os alunos do sexo masculi- no a ultrapassai' as suas dificulda- des

  17. Sobre el estudio de algunos sistemas de la Fsica-Matemtica usando transmutaciones

    E-print Network

    3 / 34 #12;Motivación Electromagnetismo (James Maxwell 1831-1879) 2V. V Kranchenko. On the relation Electromagnetismo (James Maxwell 1831-1879) Consideremos el sistema de Maxwell de tiempo armónico para un medio;Motivación Electromagnetismo (James Maxwell 1831-1879) Consideremos el sistema de Maxwell de tiempo armónico

  18. Novas estratgias comunicativas como fator de qualidade na interao de surdos em um sistema organizacional

    E-print Network

    Barbosa, Alberto

    122 Novas estratégias comunicativas como fator de qualidade na interação de surdos em um sistema formulário web e verificar se o uso de novas estratégias comunicativas melhora a interação dos surdos. Foram (MAC), uma com a interface original do sistema, e outra com o uso de novas estratégias comunicativas

  19. ltima modificacin: 29-04-2014 11477 -ARISO 1 -Arquitectura de Computadores y Sistemas Operativos I

    E-print Network

    Politècnica de Catalunya, Universitat

    Última modificación: 29-04-2014 11477 - ARISO 1 - Arquitectura de Computadores y Sistemas ECTS: 701 - AC - Departamento de Arquitectura de Computadores 2014 5 Unidad responsable: 230 - ETSETB asignatura Arquitectura de Computadores y Sistemas Operativos 1 cuenta con una carga lectiva de 6 créditos

  20. ARQUITECTURAS DE SISTEMAS DE INFORMAO E A INICIATIVA MDA MARCO COSTA*

    E-print Network

    da Silva, Alberto Rodrigues

    ARQUITECTURAS DE SISTEMAS DE INFORMAÇÃO E A INICIATIVA MDA MARCO COSTA* e ALBERTO RODRIGUES DA Management Group MDA approach and two concrete initiatives, Codagen and XIS. RESUMO A Arquitectura de comparação e discussão entre diversas abordagens existentes para a formalização de arquitecturas de sistemas

  1. Effect on the Web: An Analysis of Fake Anti-Virus Distribution Moheeb Abu Rajab

    E-print Network

    Cortes, Corinna

    of 240 million web pages collected by Google's malware detection infras- tructure over a 13 month period for enticing users to provide the same information without requiring any vulnerability. Phish- ing attacks For the following discussion, we consider a web page or binary as Fake AV if it presents content misinform- ing

  2. Reverse Engineering Anti-Virus Emulators through Black-box Analysis

    E-print Network

    Stewart, Charles V. "Chuck"

    , malware authors need to establish detectable differences between running inside an emulator, and running if they were able to extract information while running inside emulators. The difficulty is that the emulators malware to state-sponsored malware used for espionage, AV's are often central to defense against malware

  3. 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.

  4. Exploración del Sistema Solar -- Una mirada hacia el futuro - Duration: 30 seconds.

    NASA Video Gallery

    ¿Piensas que ya sabemos todo acerca de nuestro sistema solar? La realidad es que apenas hemos comenzado con lo que hay para conocer. Únete a la NASA, en el envío de misiones a los confines del sist...

  5. Carla Guerrini Elaborazione dati (lez.II) 1 Il software: cenni sul sistema

    E-print Network

    Guerrini, Carla

    hardware (workstation, mainframe, PC). In questo caso il SO nasconde ad ogni utente la presenza degli altri Elaborazione dati (lez.II) 8 IL sistema operativo (VI) Per I mainframe: Sistemi proprietari: VMS (Digital

  6. 188 Oliveira et al. Quim. Nova SISTEMA DE INJEO EM FLUXO ESPECTROFOTOMTRICO PARA MONITORAR PERXIDO DE

    E-print Network

    Jardim, Wilson de Figueiredo

    188 Oliveira et al. Quim. Nova SISTEMA DE INJEÇÃO EM FLUXO ESPECTROFOTOMÉTRICO PARA MONITORAR injection analysis; foto-Fenton. ArtigoQuim. Nova, Vol. 24, No. 2, 188-190, 2001. INTRODUÇÃO A reação foto

  7. Red GPS a Tiempo Real con Precisiones Centrimtricas para Utilizar en los Sistemas de

    E-print Network

    Gilbes, Fernando

    Red GPS a Tiempo Real con Precisiones Centrimétricas para Utilizar en los Sistemas de Información Desarrollo Tecnológico Instrumentación · Distanciómetros · Total Stations + Cámara +GPS · Laser Scanners · GPS · GPS Reference Stations · GPS Internet Ready · PDA · Tecnología Bluetooth Mapa de Puerto Rico

  8. Simulazione dei sistemi: esercitazione 1 Esempio 1: studio di un sistema massa-molla

    E-print Network

    Chisci, Luigi

    segno del termine sotto la radice si hanno le seguenti situazioni 1. Due radici reali e distinte se h2 > 4Mk 2. Due radici reali coincidenti se h2 = 4Mk Figure 1: Sistema massa-molla 1 #12;3. Due radici radici reali e distinte a) = 0, h = 2, k = 0.1. Si studi il comportamento del sistema per le diverse

  9. Resposta no tempo de sistemas de primeira e de segunda ordem s com plos

    E-print Network

    Almeida, Luis B.

    1 Resposta no tempo de sistemas de primeira e de segunda ordem só com pólos Luís Borges de Almeida Maio de 2011 1. Introdução Estas notas apresentam, de forma sumária, o estudo da resposta no tempo dos sistemas no domínio do tempo, nas aplicações práticas é bastante mais importante caracterizar a resposta ao

  10. 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

    Lesniak, Melissa

    2013-01-01

    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…

  11. Experiências internacionais da aplicação de sistemas de apoio à decisão clínica em gastroenterologia

    PubMed Central

    Tenório, Josceli Maria; Hummel, Anderson Diniz; Sdepanian, Vera Lucia; Pisa, Ivan Torres; de Fátima Marin, Heimar

    2015-01-01

    Objetivo Descrever as experiências recentes com a aplicação de sistemas de apoio à decisão clínica em gastroenterologia, de forma a estabelecer o nível de desenvolvimento, testes e vantagens conferidas à prática médica com a introdução desses softwares. Métodos Foi realizada busca nas bases de dados PubMed, LILACS e ISI Web of Knowledge, utilizando termos relacionados à sistemas de apoio à decisão e à gastroenterogia, incluindo artigos originais publicados no período entre 2005 e 2010. Foram recuperadas 104 publicações, na busca inicial e, após a aplicação dos critérios de inclusão e exclusão, foram eleitos nove estudos para leitura do texto completo. Resultados Os sistemas de apoio à decisão clínica apresentam grande multiplicidade de problemas clínicos e investigação de doenças. Em 89% dos casos, são descritos modelos experimentais para o desenvolvimento de sistemas de apoio à decisão clínica. A descrição dos resultados obtidos por técnicas de inteligência artificial em 78% das publicações. Em dois dos estudos foram realizadas comparações com o médico e em apenas uma publicação um estudo controlado foi descrito, mostrando evidências de melhorias na prática médica. Conclusão Os estudos mostram potenciais benefícios dos sistemas de apoio à decisão clínica à prática médica, porém, estudos controlados em ambiente real devem ser realizados para comprovar esta perspectiva. PMID:26491625

  12. 1. Objetivo: El sistema de Gestin de Cursos y Eventos es la herramienta del Centro Cultural Rector

    E-print Network

    Cortiñas, Guillermo

    #12;1. Objetivo: El sistema de Gestión de Cursos y Eventos es la herramienta del Centro Cultural inherentes a la gestión de cursos; tanto para los alumnos, los capacitadores; como así también a la gestión alumno en el uso del sistema de Gestión de Cursos y Eventos, para realizar el proceso de inscripción a un

  13. A FSICA ESTADSTICA SE ENCARGA DE ESTUDIAR EL COMPORTAMIENTO microscpico de los sistemas compuestos por muchos cuerpos,

    E-print Network

    Méndez Alcaraz, José Miguel

    47 L A FÍSICA ESTADÍSTICA SE ENCARGA DE ESTUDIAR EL COMPORTAMIENTO microscópico de los sistemas macroscópicas de dichos sistemas. En este artículo se presenta una revisión somera del desarrollo histórico de físicas susceptibles de ser medidas, como aceleración y masa. Cuando se tienen muchas partículas, sin

  14. APROXIMACIONES EFICIENTES PARA PROBLEMAS DE VIBRACIONES EN SISTEMAS FLUIDO-ESTRUCTURA

    E-print Network

    Armentano, María Gabriela

    APROXIMACIONES EFICIENTES PARA PROBLEMAS DE VIBRACIONES EN SISTEMAS FLUIDO-ESTRUCTURA Mario Scheblea , Maria Gabriela Armentanob y Claudio Padraa aGrupo de Mec´anica Computacional, Centro At, garmenta@mate.dm.uba.ar Palabras Clave: Vibraciones. Interacci´on fluido-estructura. Adaptividad hp

  15. El Sistema de Formas en Colores for Teaching Grammar in Spanish

    ERIC Educational Resources Information Center

    Nailon, James

    2010-01-01

    Sistema de formas en colores (SFC) is a symbols-based system for teaching Spanish grammatical structures and concepts within a communicative context in the elementary school. The (ACTFL) Standards for Foreign Language Learning: Preparing for the 21st Century states that, "While grammar and vocabulary are essential tools for communication, it is…

  16. Simulacin de sistemas complejos con agentes Xalapa, 13 de mayo 2011

    E-print Network

    Guerra Hernández, Alejandro

    · Carlos Cervigón, Eva Ullán, Diego Blanco, Lucila Finkel (Dep. Sociología IV) 7 PhD students (MEC, UCM, Conacyt, project fellowships): · Carlos Rodríguez, José M. Fdez de Alba, Albert Meco, Fernando Burillo fellowships) SiCoSSys project, 2010 Simulación de sistemas complejos con agentes 2 #12;MDE + AOSE UCM

  17. ANLISIS DE CAMBIOS EN LA CALIDAD DEL AGUA EN PUERTO RICO UTILIZANDO SISTEMAS DE INFORMACIN GEOGRFICA

    E-print Network

    Gilbes, Fernando

    ANÁLISIS DE CAMBIOS EN LA CALIDAD DEL AGUA EN PUERTO RICO UTILIZANDO SISTEMAS DE INFORMACIÓN maduros son beneficiosos para la calidad del agua en Puerto Rico. Este resultado se obtuvo integrando, mediante modelos, la información de distintas capas geográficas de Puerto Rico:(1) calidad

  18. Improving Middle School Quality in Poor Countries: Evidence from the Honduran "Sistema De Aprendizaje Tutorial"

    ERIC Educational Resources Information Center

    McEwan, Patrick J.; Murphy-Graham, Erin; Torres Irribarra, David; Aguilar, Claudia; Rápalo, Renán

    2015-01-01

    This article evaluates the impact and cost-effectiveness of offering an innovative middle school model--the Sistema de Aprendizaje Tutorial (SAT)--to Honduran villages instead of traditional middle schools. We identified a matched sample of villages with either type of school and collected baseline data among primary school graduates eligible to…

  19. Anlisis de cambios en la calidad del agua en Puerto Rico utilizando Sistemas de

    E-print Network

    Gilbes, Fernando

    Análisis de cambios en la calidad del agua en Puerto Rico utilizando Sistemas de Información;Agradecimientos · Calidad del agua (Puerto Rico) ­ Maria Uriarte de Columbia University ­ Charles B. Yackulic , Yili Lim · Calidad del agua (Cuenca Guavate) ­ Keyla Torres, Elizabeth Pabón y Fredmarie Oyola

  20. Five Encounters with "El Sistema" International: A Venezuelan Marvel Becomes a Global Movement

    ERIC Educational Resources Information Center

    Booth, Eric; Tunstall, Tricia

    2014-01-01

    Genuine worldwide movements for social change are rare in human history. Even more rare is the phenomenon of a worldwide movement for social change through art, with teaching artists at the forefront. This article presents the evolution of such a movement now, in the global blossoming of "El Sistema," a program that seeks to change the…

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

    ERIC Educational Resources Information Center

    Honeyman, Catherine A.

    2010-01-01

    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…

  2. Organizacin de objetos del sistema TANGOW: creacin y seguimiento de cursos adaptativos a

    E-print Network

    Carro, Rosa M.

    Organización de objetos del sistema TANGOW: creación y seguimiento de cursos adaptativos a través, Task-based learNer Guidance On the Web, para la creación y seguimiento de cursos adaptativos a través estructura adaptativa de cada curso y, junto con los contenidos definidos para las tareas docentes, permite

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

    ERIC Educational Resources Information Center

    Tunstall, Tricia

    2013-01-01

    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…

  4. ltima modificacin: 29-04-2014 11512 -ARISO 2 -Arquitectura de Computadores y Sistemas Operativos II

    E-print Network

    Politècnica de Catalunya, Universitat

    Última modificación: 29-04-2014 11512 - ARISO 2 - Arquitectura de Computadores y Sistemas: Curso: Créditos: 701 - AC - Departamento de Arquitectura de Computadores 2014 4,5 Idiomas docencia Conocimientos sólidos de programación en C y ensamblador. Conocimientos básicos de: 1. Arquitectura de

  5. 48 SBA Controle & Automao Vol. 10 no. 01 / Jan., Fev., Mar, Abril de 1999 OTIMIZAO DE UM SISTEMA DE GERAO DE ENERGIA ELICA

    E-print Network

    Simões, Marcelo Godoy

    SISTEMA DE GERAÇÃO DE ENERGIA EÓLICA ATRAVÉS DE CONTROLE FUZZY M. Godoy Simões, N.N. Franceschetti, Bimal lógica e controle fuzzy visando melhorias no desempenho de um sistema de geração de energia eólica, em paralelização de sistemas. Esforços governamentais estão incentivando a utilização de energia gerada de fontes

  6. Resonances and Tides in Natural Satellites Systems. (Breton Title: Ressonâncias e Marés em Sistemas de Satélites Naturais.) Resonancias y Mareas en Sistemas de Satélites Naturales

    NASA Astrophysics Data System (ADS)

    Callegari, Nelson, Jr.

    2006-12-01

    In this work we describe some aspects of the dynamics of the mean-motion resonances. Emphasis to the case of resonances between regular satellites of the giant planets will be given, even so some aspects of the physics of the resonances in extra-solar planetary systems are also briefly treated. The role of the resonances in satellites systems is discussed through examples, showing how certain resonances, and its relations with the tidal dissipation effects, can be the key of the explanation of some phenomena still not explained in the Solar System. Amongst some examples we highlight the problem of the resurfacing of Enceladus, the existence of active volcanoes in Io, and the possible existence of the subsurface ocean in Europe. This work has as objective the divulgation of some topics in Celestial Mechanics and Planetary Sciences for an undergraduate public in exact sciences, as Astronomy and Physics, and not their detailed description. Neste trabalho descrevemos alguns aspectos da dinâmica de ressonâncias de movimentos médios. Será dada ênfase maior ao caso de ressonâncias entre satélites regulares dos planetas gigantes, embora alguns aspectos da física das ressonâncias em sistemas planetários extra-solares também sejam discutidos brevemente. A importância do estudo de ressonâncias em sistemas de satélites é discutida mais detalhadamente através de exemplos, mostrando como certas ressonâncias e suas relações com efeitos de dissipação de maré podem ser a chave de parte da explicação de alguns fenômenos ainda não explicados no Sistema Solar. Dentre vários exemplos destacamos o problema da remodelagem da superfície do satélite Enceladus, a existência de vulcões ativos em Io, e a possível existência do oceano subterrâneo em Europa. Este trabalho tem como objetivo a divulgação de alguns tópicos de Mecânica Celeste e Planetologia para um público de nível de graduação em disciplinas na área de exatas, em especial Astronomia e Física, e não a descrição detalhada dos conceitos aqui discutidos. Describimos en este trabajo algunos aspectos de la dinámica de resonancias de movimientos promedio. Será dado un énfasis mayor al caso de las resonancias entre satélites regulares de los planetas gigantes, aunque también son discutidos brevemente algunos aspectos de la física de resonancias en sistemas panetarios extrasolares. La importancia del estudio de las resonancias en sistemas de satélites es discutida más detalladamente através de ejemplos, mostrando cómo ciertas resonancias y los efectos de disipación por mareas pueden ser la clave de parte de la explicación de algunos fenómenos aún no comprendidos en el Sistema Solar. Entre varios ejemplos se destacan el problema de la superficie remodelada del satélite Enceladus, la existencia de volcanes activos en Io y la posible existencia de un océano subterráneo en Europa. Este trabajo tiene como objetivo la divulgación de algunos tópicos en Mecánica Celeste y Planetología para un público universitario de ciencias exactas, en particular Astronomía y Física, y no la descripción detallada de los conceptos aquí discutidos.

  7. Desenho e Avaliao do sistema BOA com base em Padres de Interfaces Sociais

    E-print Network

    da Silva, Alberto Rodrigues

    Desenho e Avaliação do sistema BOA com base em Padrões de Interfaces Sociais Alberto Rodrigues da-aprendizagem, como é o caso da plataforma Bolsa de Objectos de Aprendizagem (BOA). Este trabalho surge no seguimento dinamização e participação em comunidades suportadas pelo BOA. Este artigo, baseando-se na análise da

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

    NASA Astrophysics Data System (ADS)

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

    2003-08-01

    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.

  9. Securing PCs and Data in Libraries and Schools: A Handbook with Menuing, Anti-Virus, and Other Protective Software.

    ERIC Educational Resources Information Center

    Benson, Allen C.

    This handbook is designed to help readers identify and eliminate security risks, with sound recommendations and library-tested security software. Chapter 1 "Managing Your Facilities and Assessing Your Risks" addresses fundamental management responsibilities including planning for a secure system, organizing computer-related information, assessing…

  10. Bureau principale de la scurit Main Security desk

    E-print Network

    Doedel, Eusebius

    main desk 24 hours Légende / Legend CAMPUS SERVICES Aboriginal Student Resource Centre 7327 (S) H 641-Campus Housing / Job Bank 7935 (S) H 260 Office of the Registrar 2668 (S) LB 700 Oscar Peterson Concert Hall 4848

  11. [Political challenges facing the consolidation of the Sistema Único de Saúde: a historical approach].

    PubMed

    Rodrigues, Paulo Henrique de Almeida

    2014-01-01

    This article investigates the circumstances in which Brazil’s sanitation reform was conceived and the Sistema Único de Saúde (SUS) was constructed. A brief analysis is conducted of Brazil’s political transition to democracy, focusing on three political challenges facing the consolidation of SUS: its weak support base amongst workers, competition with the private sector, and the fragmentation of its administration caused by its municipalization. Finally, the changes in the scenario caused by the weakening of neoliberalism since the 2008 crisis, the reemergence of a multipolar political scenario internationally, and the financing conditions of the Brazilian State are described. PMID:24789485

  12. Um sistema de cache preditivo para o processamento em tempo-real de grandes volumes de dados graficos

    E-print Network

    de Figueiredo, Luiz Henrique

    Um sistema de cache preditivo para o processamento em tempo-real de grandes volumes de dados gr, 225, Rio de Janeiro, Brasil Abstract. Para visualizar objetos gr´aficos em tempo-real ´e necess´ario superar com dois tipos de problema: tempo limitado de para efetuar o processo de rendering e espa

  13. Modelizacion, control e implementacion de un procesador energetico paralelo para aplicacion en sistemas multisalida

    NASA Astrophysics Data System (ADS)

    Ferreres Sabater, Agustin

    Cualquier sistema electronico que incluya un procesado o tratamiento de la senal, y ademas, algun tipo de actuador mecanico generalmente necesita, como minimo, dos tensiones diferentes de alimentacion. Excluyendo los sistemas de alimentacion distribuida, la solucion tecnica mas utilizada para proporcionar dos o mas tensiones consiste en las fuentes de alimentacion multisalida. En una fuente de alimentacion multisalida los diferentes circuitos que conforman cada salida comparten un mismo transformador de potencia optimizando coste, masa, y volumen. Las ventajas obtenidas con este procedimiento tienen en su contra el efecto que sobre cada salida individual provocan las demas en su conjunto debido, principalmente, a los efectos de los elementos parasitos de los componentes. Un cambio de carga en una de las salidas produce un transitorio que es visto por todas las demas como un efecto de impedancia cruzada, y al final del transitorio, la tension de cada salida es diferente respecto a la que tenian antes del transitorio. Este ultimo resultado se conoce como regulacion cruzada. La disminucion de los efectos de la regulacion cruzada ha sido objeto de estudio durante los ultimos anos. El objetivo ha sido el desarrollo de distintas estrategias que permiten, desde disminuir los efectos de la regulacion cruzada hasta los niveles deseables, a eliminarla completamente. El resultado final suele suponer una penalizacion sobre el diseno del sistema directamente proporcional al grado de regulacion a conseguir en las distintas salidas. Entre las soluciones propuestas para eliminar la regulacion cruzada las tecnicas de post-regulacion se han consolidado como la opcion mas aceptada ya que, pueden aplicarse a cualquier convertidor y no suponen ninguna complejidad adicional a la hora de plantear el diseno. En esta Tesis Doctoral se abordara el estudio de la tecnica conocida como postregulacion mediante transformador controlado, que si bien se ha empleado en convertidores resonantes, su modelizacion, y aplicacion en convertidores PWM, esta aun por estudiar y valorar. El primer Capitulo consiste en una breve introduccion al problema de la regulacion cruzada y la impedancia cruzada para posteriormente describir las tecnicas de post-regulacion actualmente mas empleadas, con especial atencion al post-regulador con transformador controlado. El Capitulo segundo trata del estudio de las caracteristicas estaticas del postregulador con transformador controlado. Partiendo de los estudios disponibles sobre el postregulador se plantean mejoras en su modo de actuacion y se discuten tres alternativas diferentes para controlar el transformador. Las dos primeras consisten en emplear un convertidor auxiliar Boost en sus dos modos de funcionamiento, continuo y discontinuo. La tercera consiste en controlar el transformador con una tension PWM directamente, sin filtrado. Finalmente se comprueba experimentalmente, para el estado estacionario, el funcionamiento del post-regulador para cada uno de los tres metodos de control. El Capitulo tercero trata de la dinamica de la salida controlada con el post-regulador cuando este emplea un convertidor auxiliar tipo Boost. Mediante la tecnica de promediado de variables de estado se propone el modelo de pequena senal, tanto para el modo continuo como para el modo discontinuo de funcionamiento del convertidor auxiliar. Los resultados mas significativos de esta seccion son las expresiones analiticas de las impedancias cruzadas y de la impedancia de la salida post-regulada. Como complemento al modelo de pequena senal se plantea un modelo de gran senal implementado sobre el simulador Pspice. Con este nuevo modelo se reproducen los resultados obtenidos con el modelo de pequena senal y ademas es posible simular los transitorios en las tensiones de salida ante cambios de carga. La modelizacion del convertidor cuando el transformador se controla con una tension PWM sin filtrar es el objetivo del Capitulo 4. En las secciones siguientes del Capitulo se plantea el correspondiente modelo de gran senal aplicado a un nuevo prototipo exper

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

    PubMed

    Majno, Maria

    2012-04-01

    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

  15. Aspergilosis cervical con diseminación al sistema nervioso central. Presentación de un caso y revisión de bibliografía

    PubMed Central

    Vergara, Guillermo Enrique; Roura, Natalia; del Castillo, Marcelo; Mora, Andrea; Alcorta, Santiago Condomi; Mormandi, Rubén; Cervio, Andrés; Salvat, Jorge

    2015-01-01

    Introducción: la Aspergilosis Invasiva (AI) del Sistema Nervioso Central (SNC) es infrecuente y ocurre generalmente en pacientes inmunocomprometidos. Puede presentarse con cuadros de meningitis, aneurismas micóticos, infartos o abscesos. Es una infección con pronóstico reservado y puede afectar el SNC de forma primaria o secundaria a partir de un foco que se disemina por vía hematógena. Presentamos el caso de un paciente con AI con invasión primaria a nivel óseo y diseminación posterior al cerebro. Caso clínico: Paciente masculino de 25 años con diagnóstico de leucemia linfática aguda en tratamiento quimioterápico que presentó neumonitis por metotrexate por lo que inicia tratamiento con corticoides. Posteriormente agregó cervicalgia y con el diagnóstico de osteomielitis cervical se realiza punción bajo tomografía computada (TC) sin aislarse gérmenes. Se colocó Halo Vest e inició tratamiento antibiótico empírico. Posteriormente presentó afasia de expresión secundaria a lesión frontal izquierda. Se realizó evacuación de absceso cerebral aislando A. fumigatus. El tratamiento antibiótico específico posterior permitió una buena respuesta clínica y radiológica. Conclusión: La presencia de lesiones en el SNC de pacientes inmunocomprometidos debe incluir a las micosis como diagnóstico diferencial. La evacuación quirúrgica permite llegar rápidamente al diagnóstico mejorando la respuesta posterior al tratamiento antibiótico. Para evaluar la respuesta terapéutica y posibles recaídas se debe realizar un seguimiento periódico clínico radiológico. Palabras clave: Aspergilosis cerebral; Aspergilosis cervical; Aspergilosis invasiva; Voriconazol. PMID:26600985

  16. Installing a Subsurface Drip Irrigation System for Row Crops (Spanish) 

    E-print Network

    Enciso, Juan

    2004-09-07

    ?neas distribuido- ras y las l?neas de lavado; ? relleno de las zanjas; e ? instalaci?n del equipo de filtrado. Componentes del sistema de irrigaci?n Los componentes principales del sistema de irri- gaci?n son los filtros, las l?neas principales, las l...

  17. UmSistema Sistema AnimaoBaseado

    E-print Network

    de Figueiredo, Luiz Henrique

    of information between system's modules. #12; l Basic entities -- virtual actor: skeletal structure. -- motionsCapturado (AMotion Capture BasedAnimation System) (AMotion Capture BasedAnimation System) FernandoWagner Fernando obtained from traditional methods -- a specific approach is required. l Traditional animation systems

  18. Principales lignes structurales du Maroc nord-oriental : apport de la gravimétrie

    NASA Astrophysics Data System (ADS)

    Chennouf, Touria; Khattach, Driss; Milhi, Abdellah; Andrieux, Pierre; Keating, Pierre

    2007-05-01

    The present work is based on various filtered maps (horizontal derivative, upward continuation) and Euler deconvolution of the gravity data from northeastern Morocco. These results allow the delineation of many geological structures, such as faults, basins, or diapirs. Some of these structures are hidden totally or partially by the Mesozoic and Cenozoic cover. The results were used to make a structural map of the study area; this map confirms the existence of several faults, localised or inferred, from former geological studies. It complements information on some of them and outlines a great number of deep or near-surface faults that had remained unknown until the present time. The major features show two principal directions: N080°-085° and N055°-065°, with a predominance of the latter, and their depth can reach 4500 m. The N080°-085° directions correspond to the Kebdana, Sidi Bouhouria, Naima, and Guefait faults, and the N055°-065° directions correspond to a fault parallel to the Mediterranean coast and the Moulouya, Madagh, Angad, and Zekkara faults.

  19. Diatomes invasives exotiques ou rares en France: Principales Observations effectues au cours des dernires dcennies

    E-print Network

    species, Eolimna comperei, is described by light and electron microscopy; its recent discovery in France remarkable taxa are of tropical origin and proliferate in summer. The abundance of Hydrosera triquetra

  20. ffnungszeiten Mo-Fr 7:30-21:30 Uhr, Beratung 9:00-18:00 Uhr Fr McAfee-Antivirus-Nutzer gibt es aktuelle Anpassungen ("Patches"), die die Sicherheit des

    E-print Network

    Franz, Sven Oliver

    aktuelle Anpassungen ("Patches"), die die Sicherheit des Produktes verbessern. Wenn Sie bereits Mc 8.8 Patch 2, sondern zusätzlich den Hotfix für Win7 installiert haben Win8-Nutzer: Hier ist aufbauend auf Patch 2 nun der Patch 3 verfügbar, der jedoch ausschließlich für Win8 gilt. Wer McAfee neu

  1. How to Keep Your Campus Safe from Infection

    ERIC Educational Resources Information Center

    Brown, Scott

    2005-01-01

    In this article, the author explains how antivirus programs work. He also explains how performances of various antivirus programs vary from one to another. He also takes a look at 13 antivirus programs and explains which of these will keep computers protected. These programs include: (1) Sophos Anti-Virus Version 3.86.2; (2) McAfee VirusScan 9.0;…

  2. January 8, 2014 ITCS QUICK REFERENCE GUIDE: CAMPUS LIVING NETWORK PREP Page 1 2014 ITCS East Carolina University

    E-print Network

    Gopalakrishnan, K.

    Carolina University Download Symantec Antivirus, Windows Critical Updates and Cisco NAC Symantec Antivirus (Windows and Mac*) ­ on campus or off campus Other supported antivirus software: McAffe, Sophos, Trend Micro, Kaspersky 1. Navigate to http://download.ecu.edu. 2. Click the Self-Service Forms button

  3. Engenharia de Sistemas e Computac~ao Sistemas e Sinais

    E-print Network

    Jesus, Sérgio M.

    no tempo Semana 4 T 3. An´alise harm´onica generalizada Integral de Fourier Propriedades e exemplos Fam Folha 2 - an´alise harm´onica Semana 6 T Mini-teste escrito Rela¸c~ao com a Trasformada de Laplace TF da

  4. Introduo dinmica de sistemas desordenados

    E-print Network

    Stariolo, Daniel Adrián

    energia . . . . . . . . . . . . . 36 4.4 Temperatura #28;nita Flutuação-Dissipação . . . . . . . . . . . . 43 4.4.6 A densidade de energia lenta pode ser associada, sem muito rigor, a uma caminhada aleatória em uma paisagem de energia rugosa

  5. Analisis del contenido curricular de los Documentos Normativos del Programa de Ciencias en el area de biologia para la escuela superior del sistema de educacion publica de Puerto Rico: 1993-2012

    NASA Astrophysics Data System (ADS)

    Davila Montanez, Melissa

    Esta investigacion de naturaleza cualitativa se ocupo de realizar un analisis de contenido documental de los Documentos Normativos del Programa de Ciencias en el area de biologia de la escuela superior del sistema de educacion publica de Puerto Rico del periodo 1993-2012. Los documentos analizados fueron: Guia Curricular, 1995; Marco Curricular, 2003; Estandares de Excelencia, 1996, 2000 y Estandares de Contenido y Expectativas de Grado, 2007. Se indago si hubo cambios en significados en los Componentes Estructurales: Naturaleza de la ciencia, Paradigmas para la ensenanza de la ciencia, Funcion del curriculo formal, Mision de la ensenanza de la ciencia; Contenidos, destrezas y competencias, Estrategias de ensenanza y Evaluacion/Assessment del aprendizaje. El analisis sugiere que no hubo cambios sustanciales en los significados de los Componentes Estructurales. Los documentos estudiados muestran mayormente caracteristicas similares, aunque los documentos mas recientes eran mas descriptivos, explicativos y especificos.

  6. Poorer functionality is related to better quality of life response following the use of biological drugs: 6-month outcomes in a prospective cohort from the Public Health System (Sistema Único de Saúde), Minas Gerais, Brazil.

    PubMed

    de Oliveira Junior, Haliton Alves; dos Santos, Jéssica Barreto; Acurcio, Francisco Assis; Almeida, Alessandra Maciel; Kakehasi, Adriana Maria; Alvares, Juliana; de Carvalho, Luis Fernando Duarte; Cherchiglia, Mariangela Leal

    2015-06-01

    We aim to analyze factors associated with the quality of life (QOL) response of individuals with rheumatic diseases treated by the Public Health System (Sistema Único de Saúde) with biological disease-modifying antirheumatic drugs (bDMARDs). Data from 428 patients using bDMARDs were collected using a standardized form at baseline and 6 months after the onset of treatment. The average reduction of the scores on EuroQol-five dimension was 0.11 ± 0.18 6 months after the onset of treatment with bDMARDs, denoting significant improvement of the participants' QOL. All the investigated types of disease exhibited significant improvement at the 6-month assessment, without any difference among them (p = 0.965). The participants with baseline poorest functionality and best QOL exhibited the best QOL outcomes after 6 months of treatment. Our study showed that the use of biological drugs induced considerable improvement in the participants' QOL. PMID:25603696

  7. Architecture for removable media USB-ARM

    DOEpatents

    Shue, Craig A.; Lamb, Logan M.; Paul, Nathanael R.

    2015-07-14

    A storage device is coupled to a computing system comprising an operating system and application software. Access to the storage device is blocked by a kernel filter driver, except exclusive access is granted to a first anti-virus engine. The first anti-virus engine is directed to scan the storage device for malicious software and report results. Exclusive access may be granted to one or more other anti-virus engines and they may be directed to scan the storage device and report results. Approval of all or a portion of the information on the storage device is based on the results from the first anti-virus engine and the other anti-virus engines. The storage device is presented to the operating system and access is granted to the approved information. The operating system may be a Microsoft Windows operating system. The kernel filter driver and usage of anti-virus engines may be configurable by a user.

  8. Enterprise Information Security Management Framework [EISMF

    E-print Network

    Sharma, Dhirendra, S.M. Massachusetts Institute of Technology

    2011-01-01

    There are several technological solutions available in the market to help organizations with information security breach detection and prevention such as intrusion detection and prevention systems, antivirus software, ...

  9. Extrait des dispositions principales du Rglement sur le personnel de l'Universit applicables aux membres du personnel administratif et technique ANNEXE AU CONTRAT DE DROIT PRIVE

    E-print Network

    Halazonetis, Thanos

    membres du personnel administratif et technique 1 ANNEXE AU CONTRAT DE DROIT PRIVE Nous attirons dispositions du Titre III de la présente partie ; b) aux dispositions du contrat ; c) à titre subsidiaire, à la décembre 1973. Art. 210 Principes de l'engagement 1 L'engagement fait l'objet d'un contrat de travail de

  10. 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

    McWilliams, Ellen K.

    2011-01-01

    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;…

  11. Efectos de Desentrelazamiento en Sistemas Disipativos

    E-print Network

    abordan algunos de los aspectos relevantes hoy en d´ia en el ´ambito de la ´Optica e Informaci´on cu ´Optica e Informa- ci´on cu´antica (proyecto MILENIO ICM P02-049F) y a DIGEGRA USACH por la ayuda que me tambi´en a todo el grupo, profesores y alumnos, de ´Optica Cu´antica de la Univer- sidad de Concepci

  12. Un problema resonante para un sistema

    E-print Network

    De Nápoli, Pablo Luis

    solución si se asumen las condiciones de Landesman-Lazer conditions, que fueron introducidas en el trabajo: E. Landesman and A. Lazer: Nonlinear perturbations of linear elliptic boundary value problems, bajo condiciones de Dirichlet. #12;Un survey sobre condiciones de Landesman-Lazer: J. Mawhin: Landesman-Lazer

  13. Sistema de autoaprendizaje. Universidad de Buenos Aires.

    E-print Network

    Cortiñas, Guillermo

    . Préstamos por una hora: Lunes a Viernes de 7:30 a 19.00 hs. Préstamo de libros a domicilio: Lunes a Viernes solicitar: - Colección de libros de texto. - Colecciones especiales. - Test. - Fichas. - Teóricos catálogo automatizado Seleccione la base en la que desee buscar - Libros - Analíticas de revistas

  14. DEPARTAMENTO DE SISTEMAS INFORM ATICOS Y COMPUTACI

    E-print Network

    Garrido, Antonio

    this new search is competitive with other state­of­the­art planners w.r.t. the plan quality 1 . 1 & Furst, 1997; Bonet & Ge#ner, 2001; Long & Fox, 2002; Weld, 1999). Many problems which were unsolvable; Gerevini & Serina, 2002a; Haslum & Ge#ner, 2001; Ho#mann, 2002; Smith & Weld, 1999). Solving

  15. Sistemas Planetarios en Presencia de Júpiters Calientes

    NASA Astrophysics Data System (ADS)

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

    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

  16. Una costruzione del sistema dei numeri reali

    E-print Network

    Maria Rosaria Enea; Donato Saeli

    2012-03-05

    There are many ways to construct the field R of real numbers. The most important and famous of these employ Cauchy sequences (Cantor) or cuts (Dedekind) in the field Q of rational numbers. These constructions sometimes overlook important details and often are complicated and cumbersome. In this note, the authors propose an essential, clear and rigorous construction of R from the stucture Q+ of positive rational numbers by the key notion of initial segment.

  17. Una costruzione del sistema dei numeri reali

    E-print Network

    Enea, Maria Rosaria

    2012-01-01

    There are many ways to construct the field R of real numbers. The most important and famous of these employ Cauchy sequences (Cantor) or cuts (Dedekind) in the field Q of rational numbers. These constructions sometimes overlook important details and often are complicated and cumbersome. In this note, the authors propose an essential, clear and rigorous construction of R from the stucture Q+ of positive rational numbers by the key notion of initial segment.

  18. para que lo descubras SistemaSolar

    E-print Network

    Fitze, Patrick

    cooperación internacional entre ESA y NASA. #12;EstrellasyNebulosas II #12;Estrellasy Nebulosas II #12;En. Estrellasy Nebulosas II V838 Monocerotis Los universos se desgranan Un mundo cae Se enciende una semilla Cada

  19. SISTEMAS DE ECUACIONES POLINOMIALES Alicia Dickenstein

    E-print Network

    Cortiñas, Guillermo

    ) Consideremos un brazo de robot que se mueve en un plano consistente de dos barras de longitudes 1 y 2, con uno de los extremos de la primer barra fijo a un punto que consideramos el origen, con posibilidad de girar en cualquier direcci´on, y la segunda barra unida al extremo de la primera, tambi´en con

  20. 4 Sistema dedutivo 4.1 Introduo

    E-print Network

    Lisboa, Universidade Técnica de

    axioma q da lógica temporal linear, de primeira ordem, com igualdade. º Para mais detalhes ver [Sernadas género gÎG t N . º Estes axiomas dão uma caracterização do conjunto Pop t c , e traduzem o facto de

  1. Detecting Virus Mutations Via Dynamic Matching Min Feng Rajiv Gupta

    E-print Network

    Gupta, Rajiv

    frequently to evade detection from antivirus software. In each update, they only add or change a smallDetecting Virus Mutations Via Dynamic Matching Min Feng Rajiv Gupta CSE Dept., University of California, Riverside {mfeng,gupta}@cs.ucr.edu Abstract To defeat current commercial antivirus software

  2. Asteroidi

    NASA Astrophysics Data System (ADS)

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

    2006-10-01

    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.

  3. Drive-by-Downloads

    SciTech Connect

    Narvaez, Julia; Endicott-Popovsky, Barbara E.; Seifert, Christian; Aval, Chiraag U.; Frincke, Deborah A.

    2010-02-01

    Abstract: Drive-by-downloads are malware that push, and then execute, malicious code on a client system without the user's consent. The purpose of this paper is to introduce a discussion of the usefulness of antivirus software for detecting the installation of such malware, providing groundwork for future studies. Client honeypots collected drive-by malware which was then evaluated using common antivirus products. Initial analysis showed that most of such antivirus products identified less than 70% of these highly polymorphic malware programs. Also, it was observed that the antivirus products tested, even when successfully detecting this malware, often failed to classify it, leading to the conclusion that further work could involve not only developing new behavioral detection technologies, but also empirical studies that improve general understanding of these threats. Toward that end, one example of malicious code was analyzed behaviorally to provide insight into next steps for the future direction of this research.

  4. Triplex Structures in an RNA Pseudoknot Enhance Mechanical Stability and Increase

    E-print Network

    Chen, Gang

    immunodeficiency virus (HIV) (­1 frameshifting efficiency: Respiratory Syndrome coronavirus (SARS- Programmed ­1 ribosomal frameshifting is utilized by many viruses · Severe Acute Respiratory Syndrome coronavirus (SARS- Cov) (­1 frameshifting efficiency: ~15%). · Novel anti-virus therapy may

  5. 48 CFR 352.239-70 - Standard for security configurations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...that its computers have and maintain the latest operating system patch level and anti-virus software level. Note: FDCC is...applicable product versions with all relevant and current updates and patches installed. The Contractor shall ensure currently...

  6. 48 CFR 352.239-70 - Standard for security configurations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...that its computers have and maintain the latest operating system patch level and anti-virus software level. Note: FDCC is...applicable product versions with all relevant and current updates and patches installed. The Contractor shall ensure currently...

  7. 48 CFR 352.239-70 - Standard for security configurations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...that its computers have and maintain the latest operating system patch level and anti-virus software level. Note: FDCC is...applicable product versions with all relevant and current updates and patches installed. The Contractor shall ensure currently...

  8. 48 CFR 352.239-70 - Standard for security configurations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...that its computers have and maintain the latest operating system patch level and anti-virus software level. Note: FDCC is...applicable product versions with all relevant and current updates and patches installed. The Contractor shall ensure currently...

  9. 48 CFR 352.239-70 - Standard for security configurations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...that its computers have and maintain the latest operating system patch level and anti-virus software level. Note: FDCC is...applicable product versions with all relevant and current updates and patches installed. The Contractor shall ensure currently...

  10. Last Updated: February 12, 2014 4:26 PM

    E-print Network

    Massachusetts at Amherst, University of

    IT Budgeting, Financial Reporting & Compliance Site Licensed Software Management IT Purchasing, Payments IT Enterprise Infrastructure IT Enterprise Services Information Security Services (Anti-virus, Data Loss Prevention) Firewall Incident Response Services Compliance Management Security Assessments #12;Last Updated

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

    E-print Network

    Loss, Daniel

    ARTICLES Distributive immunization of networks against viruses using the `honey-pot' architecture with a `honey-pot' architecture that achieves both early virus discovery and rapid antivirus dissemination. We

  12. From: Weber, Lon To: CNREHelpDesk

    E-print Network

    Hopkins, William A.

    the Mac OS except for Antivirus software and keeping the OS up-to-date. Over time as the evil doers out, Director of IT College of Natural Resources and Environment, Virginia Tech 216C Cheatham Hall Blacksburg

  13. Designing security into software

    E-print Network

    Zhang, Chang Tony

    2006-01-01

    When people talk about software security, they usually refer to security applications such as antivirus software, firewalls and intrusion detection systems. There is little emphasis on the security in the software itself. ...

  14. Message from Praveen Panchal, VP of IT and CIO Welcome back and welcome

    E-print Network

    Sun, Yi

    awards and sign up for classes via an online shopping cart ­ similar to Amazon's. Faculty will be able, it is imperative that you protect your own and others data. Update your computer with the latest antivirus software

  15. A View on Current Malware Behaviors Ulrich Bayer

    E-print Network

    Kruegel, Christopher

    and major security threats facing the Inter- net today. Anti-virus companies typically have to deal mil- lion unique binaries (based on their MD5 file hashes). Given that processing each malware program

  16. Avances e Innovacin en la Ciencia y Tecnologa de Productos Lcteos El objetivo del curso es profundizar en el conocimiento de los principales aspectos cientficos y tecnolgicos de los productos

    E-print Network

    Avances e Innovación en la Ciencia y Tecnología de Productos Lácteos El objetivo del curso es en las prácticas. Título del curso Resumen del contenido y objeto del curso Áreas de interés del curso CIENCIA Y TECNOLOGÍA DE ALIMENTOS Perfil del alumno tipo. Formación académica LICENCIADO

  17. SISTEMA DE ANLISE DE NDULO PULMONAR Aristfanes C. Silva1

    E-print Network

    de Figueiredo, Luiz Henrique

    possibilitarão uma boa análise, visualização e diagnóstico de nódulos pulmonares. Alguns desses recursos são oferecer aos médicos diversos recursos para uma boa análise, visualização e diagnóstico de nódulos

  18. Alex Nogues Otero Sistemas de Informacin Geogrfica. Ejemplos de su

    E-print Network

    Politècnica de Catalunya, Universitat

    superficial ·Estimación de erosión de suelos ·Simulación de Inundaciones ·Entrada de geometrías y datos para Llobregat Uso de Suelo Hectareas Aigua continental 45.8 Bosquines i prats 121.3 Cultius herbacis de regadiu

  19. Sistemas Distribudos com Redes de Sensores sem Fio

    E-print Network

    Rodriguez, Noemi

    · colaboração · email · jogos · distribuição de conteúdo · acesso uniforme a recursos · single científicas · correio eletrônico · jogos · ... u relação com escalabilidade #12;estudo de SDs

  20. Inmunoterapia: Uso del sistema inmunitario para tratar el cáncer

    Cancer.gov

    Resumen de los métodos de inmunoterapia utilizados para tratar el cáncer, tales como el uso de anticuerpos monoclonales, transferencia celular adoptiva, vacunas de tratamiento contra el cáncer y sustancias modificadoras de la respuesta inmunitaria.

  1. El enfoque de sistemas en programas de seguridad cuarentenaria

    Technology Transfer Automated Retrieval System (TEKTRAN)

    In a globalized world, the application of phytosanitary measures for quarantine by the producing countries is becoming more important as it facilitates access to key export markets for fruits and vegetables. Some of the problems currently encountered with quarantine treatments include, among others...

  2. DEPARTAMENTO DE SISTEMAS INFORMATICOS Y COMPUTACION UNIVERSIDAD POLITECNICA DE VALENCIA

    E-print Network

    Garrido, Antonio

    -of-the-art planners w.r.t. the plan quality1 . 1. Introduction There has been an impressive growth in the use of AI Planning algorithms in the last decade (Blum & Furst, 1997; Bonet & Geffner, 2001; Long & Fox, 2002; Weld; Hoffmann, 2002; Smith & Weld, 1999). Solving these simplifications imposes challenges on current planning

  3. Diversidad de Sistemas Planetarios en Discos de Baja Masa

    NASA Astrophysics Data System (ADS)

    Ronco, M. P.; de Elía, G. C.

    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

  4. Supernovas y ``Viudas Negras``: Evolución en sistemas binarios

    NASA Astrophysics Data System (ADS)

    Benvenuto, O. G.

    In this article; on the occasion of receiving the José Luis Sérsic award of our Association; I present a brief discussion of the topics I am currently working on; related to the evolution of stellar close binary systems with exchange of mass. In particular; I present an abridged discussion of the work we have done in order to account for the observed properties of supernova SN 2011dh and the evolution of low mass systems that lead to the formation the so called ``black widow'' systems. Also; I consider timely to publicly acknowledge to those who helped and accompanied me in the adventure of scientific research. FULL TEXT IN SPANISH

  5. Efectos relativistas en los sistemas Galileo, GPS y GLONASS

    E-print Network

    J. -F. Pascual-Sánchez

    2004-05-18

    Nowadays, the Global Navigation Satellite Systems (GNSS), working like global positioning systems, are the GPS (NAVSTAR) and the GLONASS, which only are operative when several relativistic effects are corrected. In the next years the Galileo system will be constructed, copying the GPS System if there is no an alternative project. In this work, it will be exposed that there is one alternative to the mere copy by means of the SYPOR project, using relativistic concepts, and without utilize the Newtonian ideas that are in the basic conception, so much of the GPS as of the GLONASS. According to the SYPOR project, the Galileo system would be exact, with no need of corrections, and it would have additional technological advantages.

  6. Repaso de matrices, determinantes y sistemas de ecuaciones lineales

    E-print Network

    Hurtado, Ana

    ciento de nitr´ogeno, un 21 por ciento de ox´igeno y un 1 por ciento de arg´on. Para poder realizar un forma de rect´angulo, que usualmente se delimitan por medio de par´entesis. Si una matriz tiene n filas

  7. Ozka grla sistema odprtega dostopa: glasovi iz sveta

    E-print Network

    Bonaccorso, Elisa; Božankova, Reneta; Cadena, Carlos D.; ?apská , Veronika; Czerniewicz, Laura; Emmett, Ada; Oludayo, Folorunso F.; Gluhova, Natalija; Greenberg, Marc L.; Hladnik, Miran; Grillet, Marí a E.; Indrawan, Mohamad; Klejner; Kapovi?, Mate; Klejner, Jurij A.; ?azi?ski, Marek; Loyola, Rafael D.; Menon, Shaily; Morales, Luis G.; Ocampo, Clara; Pé rez-Emá n, Jorge; Peterson, A. Townsend; Poposki, Dimitar; Rasheed, Ajadi A.; Rodrí guez-Clark, Kathryn M.; Rodrí guez, Jon P.; Rosenblum, Brian; Sá nchez-Cordero, Ví ctor; Smolí k, Filip; Snoj, Marko; Szilá gyi, Imre; Torres, Orlando; Tykarski, Piotr

    2014-12-01

    Izena?eni pogoji so klju? za globalno udeležbo v znanosti in raziskovanju, posebej glede na to, kako so znanstvene publikacije inancirane in dostopne. Obstajajo pa potencialne pasti t. i. zlatega modela odprtega dostopa, pri katerem publikacije...

  8. XCCURV: UN SISTEMA PER LA MODELLAZIONE GEOMETRICA DI

    E-print Network

    Casciola, Giulio

    . : : : : : : : : : : : : : : : : : : : : : : 18 4.3 Il bottone: Salva IP/AP. : : : : : : : : : : : : : : : : : : 18 4.4 Il bottone: Salva CP.1.1 I bottoni: Approssimazione di Forma e CP da le 21 5.1.2 I bottoni: Interpolazione ed IP da File. : : : : : : : : : : : : : : : 39 5.5 Il bottone: Ripristina. : : : : : : : : : : : : : : : : : : : 40 5.6 Il bottone: Pulisci Video

  9. CURSO DE PS-GRADUAO EM CINCIA DO SISTEMA TERRESTRE

    E-print Network

    *,#. Dra. Ana Paula Dutra Aguiar 2º Período Letivo CST-306-3 Setor Elétrico e o Meio Ambiente Dr. Osmar Pinto Júnior CST-307-3 Energia e o Meio Ambiente Dr. Ênio Bueno Pereira CST-308-3 Desastres Naturais Dra. Regina Célia dos Santos Alvalá Dra. Chou Sin Chan CST-310-3 População, Espaço e Meio Ambiente Dr. Antonio

  10. Un Sistema Inmune Artificial para Solucionar Problemas de Optimizacion Multiobjetivo

    E-print Network

    Coello, Carlos A. Coello

    concepto importante es el de optimalidad de Pareto [2], el cual fue propuesto por Vilfredo Pareto [1] en el sigue: Decimos que un punto ¡¨¢XW`Y (Y es la zona factible) es un ´optimo de Pareto si para toda ¡a

  11. UmUm SistemaSistema dede Animao BaseadoAnimao Baseado emem Movimento CapturadoMovimento Capturado

    E-print Network

    de Figueiredo, Luiz Henrique

    of information between system's modules. #12;q Basic entities ­ virtual actor: skeletal structure. ­ motionsMovimento Capturado (A Motion Capture Based Animation System)(A Motion Capture Based Animation System) Fernando Wagner from traditional methods ­ a specific approach is required. q Traditional animation systems ­ treat

  12. Darío y Lugones: Dos visiones modernistas de Pierrot

    E-print Network

    Sarabia, Rosa

    1987-10-01

    una naturaleza equivalente, "dos o tres árboles raquíticos" (342). A esto hay que sumar un elemento del sistema de decorado recién aludido que entra en relación directa con la inmediata acción y es el pozo en cuyo subsuelo están los tachos de la... coquetería-provoca la caída del amante desafortunado en un tacho de tinta que lo tiñe de negro, descenso no solo físico sino también espi ritual. Los principales personajes-todos ellos pertenecientes a la Commedia delFArte~se hallan presentes en este...

  13. Universal Serial Bus Architecture for Removable Media (USB-ARM)

    Energy Science and Technology Software Center (ESTSC)

    2011-03-09

    USB-ARM creates operating system drivers which sit between removable media and the user and applications. The drivers isolate the media and submit the contents of the media to a virtual machine containing an entire scanning system. This scanning system may include traditional anti-virus, but also allows more detailed analysis of files, including dynamic run-time analysis, helping to prevent ?zero-day? threats not already identified in anti-virus signatures. Once cleared, the media is presented to the operatingmore »system, at which point it becomes available to users and applications.« less

  14. Rapid Screening of Transformed Data Leaks with Efficient Algorithms and Parallel Computing

    E-print Network

    Ryder, Barbara G.

    expressions. We design two new algorithms for detecting long and transformed data leaks. Our system achieves. Different from pattern matching techniques employed in anti-virus and intrusion detection systems, data leak for detecting transformed data leaks, because of its formidable complexity when model- ing the required regular

  15. 75 FR 57904 - Announcing a Meeting of the Information Security and Privacy Advisory Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-23

    ...Director of NIST on security and privacy issues pertaining...Panel discussion of security, anti-virus and patching...National Vulnerability Database to discuss attack and...space and influence on security programs, --U.S...National Security Staff/Cyber Coordinators...

  16. Anti-Disassembly using Cryptographic Hash John Aycock, Rennie deGraaf, and Michael Jacobson, Jr.

    E-print Network

    Aycock, John

    't be analyzed. This could involve self-modifying code, which presents 1The techniques we describe can be used,degraaf,jacobs}@cpsc.ucalgary.ca TR 2005-793-24 Abstract Computer viruses sometimes employ coding techniques intended to make anal- ysis difficult for anti-virus researchers; techniques to obscure code to impair static code analysis

  17. The Internet Protocol Journal Trends in Viruses and Worms

    E-print Network

    Chen, Thomas M.

    that networked computers continue to be vulnerable to new attacks despite the widespread deployment of antivirus continually grown in sophistication over the years. This article highlights a series of significant past innovations in virus and worm technology. The purpose is to show that viruses and worms continue to pose

  18. Science and Technology Resources on the Internet: Computer Security.

    ERIC Educational Resources Information Center

    Kinkus, Jane F.

    2002-01-01

    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.…

  19. School of Allied Health Professions New Student IT Orientation

    E-print Network

    .lsuhsc.edu #12;Click on Desktop-New #12;#12;Software Microsoft Office 2013 Professional (PC) Microsoft Office 2011 Standard (Mac) - Available at the LSUHSC bookstore ($35 + tax) Microsoft Forefront (antivirus) (PC/streaming through P2P apps: BitTorrent, Pirate Bay, FrostWire, etc. - No internet radio (Songza, Pandora, etc

  20. Non-normalizable Functions: A New Method to Generate Metamorphic Malware

    E-print Network

    Wang, Weichao

    . and CyberDNA UNC Charlotte Weichao Wang SIS Dept. and CyberDNA UNC Charlotte Abstract--To successfully servers for signature updates and add the new signatures to their databases for future detection. Attackers have developed many methods of preventing anti-virus products from detecting their malicious

  1. SECURITY AND COMMUNICATION NETWORKS Security Comm. Networks 2012; 00:115

    E-print Network

    Marsland, Stephen

    , viruses, botnets and even state- sponsored cyber militants. The attacker's motivation can range from pranks, to personal gain, to lucrative business models and cyber-espionage. The goals, however, a major anti-virus company reported blocking over 5.5 billion malware attacks in 2011, with 403 million

  2. Inoculation Against Malware Infection Using Kernel-level Software Sensors

    E-print Network

    Mancoridis, Spiros

    . Nevertheless, by modifying the malware to avoid detection, ZeuS was used in a successful cyber-attack against U a signature in the detection database. Such antivirus software has seen a widespread adoption due to their low be added to a detection database. As a result, malware au- thors modify existing malware to evade detection

  3. www.kent.ac.uk/itservices Information Services

    E-print Network

    Kent, University of

    Fi, your device must support WPA2/AES encryption. Symbian phones and some BlackBerry models won't be able: Apple phones and tablets Android 4.3: Google Nexus devices, most Samsung devices, some HTC phones installing an anti-virus app (particularly if on Android). Popular free packages include Sophos, Bitdefender

  4. On Scalable Attack Detection in the Network Ramana Rao Kompella, Sumeet Singh, George Varghese

    E-print Network

    Varghese, George

    damage to other hosts and networks, sometimes at great cost. Thus the field of network security has sprung up in an attempt to prevent or mitigate attacks against campus, enter- prise, and ISP networks. The earliest network security solutions attempted to secure Internet hosts using anti-virus software running

  5. Computer Security Tips for Cyber Monday What could be more convenient than shopping on-line right from your laptop, desktop or mobile

    E-print Network

    Emmons, Scott

    -virus software. Installing anti-virus software and updating it regularly are among the best defenses against around, you'd still be quite prudent to adopt an approach to cyber security akin to the "defensive driving" attitude that should come into play when you're behind the wheel of a motor vehicle

  6. Variant Rabbit Hemorrhagic Disease Virus in Young Rabbits, Spain

    PubMed Central

    Dalton, Kevin P.; Nicieza, Inés; Balseiro, Ana; Muguerza, María A.; Rosell, Joan M.; Casais, Rosa; Álvarez, Ángel L.

    2012-01-01

    Outbreaks of rabbit hemorrhagic disease have occurred recently in young rabbits on farms on the Iberian Peninsula where rabbits were previously vaccinated. Investigation identified a rabbit hemorrhagic disease virus variant genetically related to apathogenic rabbit caliciviruses. Improved antivirus strategies are needed to slow the spread of this pathogen. PMID:23171812

  7. 7/9/08 0:00TECH WORLD: Curious robots could search for intelligent life on distant planets Page 1 of 3http://itechbuzzz.blogspot.com/2008/07/curious-robots-could-search-for.html

    E-print Network

    Arizona, University of

    Free ZoneAlarm Free MRecover Antivirus Practice Lab LeakTest W32.Sircam.Worm@mm Removal Tool Clam on Mars Ringtones New Life on Mars Ringtones Just released - Download now! Filmringer.com Mars Area orbiters with surface explorers. Scientists used data from three Mars orbiters to determine the landing

  8. IT Strategy: support for

    E-print Network

    silos Train team and individuals Collaborate on architecture design and problem solving Communicate compliance and tracking Baseline architecture Migration planning IT Security Implement centralized anti-virus management Team approach to ISAAC review Minimize faculty and staff use of admin passwords Enterprise

  9. MS Outlook 2003 Secure IMAP Configuration Settings for Windows-based PC for HMS Local and Remote Usage

    E-print Network

    Zhang, Yi

    MS Outlook 2003 Secure IMAP Configuration Settings for Windows-based PC for HMS Local and Remote the outbound email scanning option under AntiVirus, and disable the training engine under AntiSpam. · Download Secure IMAP Configuration Settings for Windows-based PC for HMS Local and Remote Usage ma, lh, do, jp

  10. MS Outlook 2003 Secure POP Configuration Settings for Windows-based PC for HMS Local and Remote Usage

    E-print Network

    Zhang, Yi

    MS Outlook 2003 Secure POP Configuration Settings for Windows-based PC for HMS Local and Remote email scanning option under AntiVirus, and disable the training engine under AntiSpam. · Download, do, jp: rriyo, 9/15/2005 #12;MS Outlook 2003 Secure POP Configuration Settings for Windows-based PC

  11. How Much Security Does Your Library Need?

    ERIC Educational Resources Information Center

    Banerjee, Kyle

    2003-01-01

    Explains how to keep library systems healthy and functioning by taking sensible security measures. Examines why hackers would target library systems and how library systems are compromised. Describes tools that can help, including: firewalls; antivirus software; alarms; network analysis tools; and encryption. Identifies several strategies for…

  12. Peace (of Mind) in Our Time

    ERIC Educational Resources Information Center

    Panettieri, Joseph C.

    2007-01-01

    There's no silver bullet to information security; universities must continue to keep their antivirus, anti-spyware, firewall, and patch management systems in good working order. These days, the largest target for hackers appears to be university databases. Now, universities are searching for new solutions to safeguard those systems. This article…

  13. Computer Viruses: Pathology and Detection.

    ERIC Educational Resources Information Center

    Maxwell, John R.; Lamon, William E.

    1992-01-01

    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)

  14. Data Mining Methods for Detection of New Malicious Executables Matthew G. Schultz, Eleazar Eskin, Erez Zadok, and Salvatore J. Stolfo

    E-print Network

    Zadok, Erez

    Data Mining Methods for Detection of New Malicious Executables Matthew G. Schultz, Eleazar Eskin,mgs,ezk,salg@cs.columbia.edu Abstract A serious security threat today is malicious executables, especially new, unseen malicious executables. Many of these new malicious executables are undetectable by current anti­virus systems because

  15. Lock Your Computer Screen Before Leaving Your Desk

    E-print Network

    California at Santa Barbara, University of

    Lock Your Computer Screen Before Leaving Your Desk Locking your computer's screen is an easy and effective step to take to protect the information on your computer system while it's unattended. Create Virus Protection Computers are infected with a virus more often than most people. Make sure antivirus

  16. Learning of Personalized Security Settings Mehrbod Sharifi

    E-print Network

    Fink, Eugene

    .cs.cmu.edu/~jgc Abstract--While many cybersecurity tools are available to computer users, their default configurations and helps customize available tools. Keywords--Cybersecurity, machine learning.1 I. INTRODUCTION The growth of the Internet has led to development of numerous anti-virus and anti-malware tools and enhancement of security

  17. 04/16/2007 11:56 AMMore Females Because Sisters Kill Their Brothers -Not such an altruistic behavior in parasitoid wasps -Softpedia Page 1 of 2http://news.softpedia.com/news/More-Females-Because-They-Kill-Male-Offspring-51802.shtml

    E-print Network

    Reece, Sarah

    Online Enjoy over 2500 Channels on your PC TV Shows, News, Movies, Sports visit site > Bit..signup free Trade the world markets today! www.gnutrade.com Ads by Google - Advertise on this site MoreDefender Antivirus Guaranteed detection and removal of all viruses. PC World Best Buy! visit site > SIPfoundry A Free

  18. How To: Protect against a Zero-Hour Attack

    ERIC Educational Resources Information Center

    McCarthy, Rob

    2005-01-01

    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…

  19. Stealthy Software: Next-generation Cyber-attacks and Defenses

    E-print Network

    Hamlen, Kevin W.

    development in a decades-old battle of virus-antivirus co-evolution. Reactively adaptive malware and automated: . . . " --Mary Shelley (Frankenstein, 1818) I. MALWARE EVOLUTION: PAST AND PRESENT The last few years have wrong and infected a significant portion of the internet, denying service and costing an estimated

  20. Putting Out a HIT: Crowdsourcing Malware Installs Chris Kanich

    E-print Network

    Kanich, Chris

    entices workers on Amazon's Mechanical Turk to visit our website using the incentive of a small reward supplementary statistics gathered regarding Me- chanical Turk workers' browser security, antivirus usage, and willingness to run arbitrary programs in exchange for a small monetary reward. 1 Introduction When considering

  1. TechSpot on: Like Follow Most Popular

    E-print Network

    Chiao, Jung-Chih

    the web. 7 10Like smartphone, found, micro windmills, battery ch... Next Article: Dropbox: Recent downtime Built (Txchnologist) Find Out Which Antivirus Software Received a Near Perfect Score (Beta News) Cloud Computing Transforms Manufacturing in Asia (YouTube) When it comes to storage, cache is king (Computer

  2. Efficient and Scalable Socware Detection in Online Social Md Sazzadur Rahman, Ting-Kai Huang, Harsha V. Madhyastha, Michalis Faloutsos

    E-print Network

    Cafarella, Michael J.

    for cybercrime, and hackers are finding new ways to propagate spam and malware on these platforms, which we refer present MyPageKeeper, a Facebook ap- plication that we have developed to protect Facebook users from posts point to malicious apps and pages hosted on Facebook (which no current antivirus or blacklist

  3. Misura dell’efficienza e dell’allineamento spaziale del rivelatore di muoni dell’esperimento $LHCb$

    E-print Network

    Falabella, A; Vecchi, S

    2010-01-01

    Il C.E.R.N. (Conseil Européen pour la Recherche Nucléaire) è il più grande laboratorio al mondo per la fisica delle particelle. È situato sul confine tra Svizzera e Francia e nasce nel 1954 da una collaborazione di 12 paesi. Attualmente i paesi che ne fanno parte sono 20. Lo scopo principale del C.E.R.N. è di fornire strumenti per esperimenti di fisica delle alte energie attraverso l’impiego di acceleratori di particelle. Negli acceleratori vengono prodotti ed accelerati fasci di particelle ad elevata energia che possono essere fatti collidere con un bersaglio fisso ($target$) o con un altro fascio in direzione opposta. In entrambi i casi vengono prodotte particelle che vengono studiate per mezzo di apposti rivelatori. Il sistema di acceleratori del C.E.R.N. è un sistema di macchine ad energia crescente. Gli elementi fondamentali di questo sistema di acceleratori sono, com’è possibile vedere dalla figura 2 PS, SPS, LHC. PS ($Proton$ $Synchrotron$) è un acceleratore di protoni, che accelera proton...

  4. Sermonario en lengua mexicana donde se contiene (por el orden del Misal nuevo Romano) dos sermones en todas las Dominicas y Festividades principales de todo el año ; y otro en las Fiestas de los Santos : con sus vidas, y Comunes. Con un Catecismo 

    E-print Network

    Juan de la Anunciació n, fray, 1514-1594 Sermonario en lengua mexicana donde se contiene (por el orden del Misal nuevo Romano) dos sermones en todas las Dominicas y Festividades principales de todo el añ o; y otro en las Fiestas de los Santos : con sus vidas, y Comunes. Con un Catecismo  Juan de la Anunciació n, fray, 1514-1594 Safer Food with Irradiation (Spanish)  Thompson, Britta; Vestal, Andy; Van Laanen, Peggy

    2003-01-21

    . Muchosestudios cient?ficos han confirmado que los ali-mentos irradiados no son t?xicos y no causanproblemas de salud . Los astronautas han ingeri- do alimentos irradiados desde el inicio del pro-grama espacial sin ninguna consecuencia malapara la salud . ?La...:H7, la Salmonela , la C ampylobacteria , la Listeria y otras bacterias da?inas que pueden estar en losalimentos crudos . La irradiaci?n aumenta la vida de anaquel (alma-cenamiento) y retrasa el proceso de maduraci?nde algunos alimentos frescos...

  5. LA SITUACIN DE LAS MUJERES EN EL SISTEMA EDUCATIVO DE CIENCIA Y TECNOLOGA EN

    E-print Network

    Fitze, Patrick

    . Sociología, U. Complutense de Madrid) Ana Guill (Escuela de Trabajo Social, Universidad de Sevilla) Becarias.............................................................................................106 COMPATIBILIDAD TRABAJO-FAMILIA......................................................109 LAS

  6. UTILIZACIN DE DATOS LIDAR Y SU INTEGRACIN CON SISTEMAS DE INFORMACIN GEOGRFICA

    E-print Network

    Gilbes, Fernando

    information to a wide variety of geospatial applications including assessing forest inventories, mapping of industries from forestry to defense and intelligence, LiDAR has become increasingly popular in recent years for the important 3D information it provides about objects in a geospatial context," said Beau Legeer, vice

  7. Investigacion Participativa y Gestion de Sistemas Educativos. (Participatory Research and the Management of Educational Systems).

    ERIC Educational Resources Information Center

    Valle, Victor M.

    Elements which, when put in harmony, might generate powerful tools for social change and educational development are (1) the ever present need of the educational systems to evaluate their performance; (2) the universal acceptance of the life-long education concept as a major guideline to design educational programs; (3) the trend toward a…

  8. Adaptac~ao ao Contexto em Sistemas de Comunicac~ao Heterogeneos

    E-print Network

    Rodrigues, Luís E.T.

    . Considerem-se por exemplo aplicac¸ ~oes cooperativas multi-utilizador tais como os jogos em rede ou aplicac¸~oes cooperativas multi-utilizador (tais como os jogos on-line). Embora a maioria das concretizac¸~oes actuais destes jogos se baseiem em arquitecturas cliente-servidor, foram j´a de- Este trabalho foi

  9. Sistemas Eólicos Pequeños para Generación de Electricidad: Una guia para consumidores en Nuevo México

    SciTech Connect

    Not Available

    2005-10-01

    This Spanish version of the popular Small Wind Electric Systems: A New Mexico 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 business based on their wind resource, energy needs, and economics. Topics include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a list of contacts for more information.

  10. Sistemas Eolicos Pequenos para Generacion de Electricidad; Una guia para consumidores en los EE.UU.

    SciTech Connect

    Not Available

    2007-09-01

    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 business based on their wind resource, energy needs, and economics. Topics include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a list of contacts for more information.

  11. Sistemas Eolicos Pequenos para Generacion de Electricidad: Una guia para consumidores en Nuevo Mexico

    SciTech Connect

    Not Available

    2007-09-01

    This Spanish version of the popular Small Wind Electric Systems: A New Mexico 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 business based on their wind resource, energy needs, and economics. Topics include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a list of contacts for more information.

  12. Mejorando la eficiencia de sistemas embebidos utilizando estrategias paralelas de busqueda de

    E-print Network

    Duarte, Abraham

    arquitectura de memoria que se ha utilizado 1Dpto. de Inform´atica y Estad´istica, Universi- dad Rey Juan Carlos, M´ostoles, Spain. E-mail: {jesus.sanchezoro,abraham.duarte}@urjc.es 2Dpto. de Estad´istica e

  13. INAUGURACI DEL CURS ACADMIC 2012-2013 DEL SISTEMA UNIVERSITARI CATAL.

    E-print Network

    Verschure, Paul

    , universitats i consells socials hem anat creant diversos premis i distincions, amb l'objectiu comú de un gran desconeixement de la universitat i el teixit social i productiu li reclama ben poques coses

  14. Paralelizacin del modelo hidrodinmico secuencial COHERENS para sistemas multicore mediante OpenMP

    E-print Network

    Giménez, Domingo

    nuestro caso el medio marino. Reciben este nombre debido a Claude-Louis Navier y George Gabriel Stokes Ec.Navier-Stokes hidrodinámico es un programa computacional basado en las ecuaciones de Navier-Stokes, las cuales se tratan de un

  15. Estudio de la Velocidad de Rotacion EN LOS Sistemas Estelares a Simetria Axial

    NASA Astrophysics Data System (ADS)

    Sanz, J.; Catala, M. A.

    1986-12-01

    This paper contains the calculation of the tangential component of the velocity for a model of galaxy with axial symmetry, non.stationary state and equatorial symmetry plane, from the postulates and fundamental equations of Chandrasekhar theory, that shows a shift of the maximum for different values of the Z coordinate and the 0 direction. Key words: STELLAR DYNAMICS - STELLAR SYSTEMS

  16. Luca Cossaro -M31 Italia s.r.l. SISTEMA INTEGRATO/DISTRIBUITO DI

    E-print Network

    Schenato, Luca

    /TEMPORANEO Wi-Fi ZigBee Mesh ZigBee Mesh LUCA COSSARO - M31 ITALIA S.R.L. 429/11/2010 #12;CARATTERISTICHE dei materiali utilizzati · In cui gli impianti non possano essere modificati · Alto numero di Mote ZigBee-esistenti LUCA COSSARO - M31 ITALIA S.R.L. 729/11/2010 #12;ACQUISIZIONE DEI DATI · Mobile / Temporanea · ZigBee

  17. EVALUACIN Y CREACIN DE DOS CORREDORES ECOLGICOS: UTILIZANDO SISTEMAS DE INFORMACIN GEOGRFICA

    E-print Network

    Gilbes, Fernando

    Departamento de Salud Ambiental Escuela Graduada de Salud Pública Recinto de Ciencias Médicas Universidad de contribución a la salud) utilizadas en la valoración de estos espacios a escala local y regional se usará como

  18. The Solar System/El Sistema Solar--A Fully Integrated Instructional Unit.

    ERIC Educational Resources Information Center

    Van Heukelem, Tom; Mercado, Maria de Jesus

    This lesson plan for the second grade uses information on the solar system to provide science education for limited-English-proficient (LEP) students in San Diego, California. The lesson has been developed to be taught in a bilingual class, a Spanish-language immersion class, or a two-way bilingual class. Lessons are arranged so that native…

  19. Una guia a los padres acerca del sistema educacional = A Parent's Guide to Education. Spanish Edition.

    ERIC Educational Resources Information Center

    Rowch, Nancy

    A guide for Spanish-speaking parents of elementary and secondary school students in Nebraska provides in Spanish, and then in English, information concerning education in the state. Topics covered include: state policy concerning enrolling children in school, medical requirements for enrollment and attendance, the school curriculum requirements…

  20. Introduccin a los Sistemas de Informacin Pervasivos Abril 2007 Prof. R. LAURINI

    E-print Network

    Laurini, Robert

    · Infraestructuras · « pervasive computing » · Redes inalámbricas 1960 1970 1980 1990 2000 2010 Tiempo Penetración » · Tres infraestructuras ­ Telecomunicaciones ­ Datos ­ Servicios Bases de datos Docu- mentos Conoci

  1. Sistemas binarios viuda negra: conectando sus orígenes con su estado final

    NASA Astrophysics Data System (ADS)

    Benvenuto, O. G.; De Vito, M. A.; Horvath, J. E.

    ``Black widow'' systems are located in a well determined region of the plane (where is the mass of the pulsar companion and is the orbital period of the system). An attempt has been made to understand which are the mechanisms that lead to companions of ``black widows'' to be located in this region; since standard binary evolution does not provide a satisfactory response. From our evolutionary calculations; we study the path performed in the plane by a binary system to reach the state of ``black widow''. We also discuss whether there is a connection between ``redbacks'' and ``black widows''. FULL TEXT IN SPANISH

  2. Sistemas de Cúmulos Globulares: trazando la formación y evolución de las galaxias

    NASA Astrophysics Data System (ADS)

    Faifer, F. R.

    In this paper; we review some properties and mentioned several aspects that have caused a marked and renewed interest in the study of globular cluster systems in the last decade. We emphasised on the relationship between some of these properties and galaxies formation processes. FULL TEXT IN SPANISH

  3. La producción de cráteres en el Sistema de Satélites de Saturno

    NASA Astrophysics Data System (ADS)

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

    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

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

    NASA Astrophysics Data System (ADS)

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

    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

  5. Calibración de isócronas semi-empíricas en el sistema fotométrico de Washington

    NASA Astrophysics Data System (ADS)

    Perren, G.; Piatti, A. E.; Vázquez, R.

    We have compiled a database of star clusters observed in the Washington photometric system composed of more than 180 objects; covering a wide range of ages. Through a systematic study of their sequences in the Color-Magnitude Diagram we plan to obtain; for the first time; a set of semi-empirical isochrones in this system. FULL TEXT IN SPANISH

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

    NASA Astrophysics Data System (ADS)

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

    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

  7. Estudio fotométrico de sistemas binarios y multiples de cumulos estelares de la Nube Mayor de Magallanes

    NASA Astrophysics Data System (ADS)

    Palma, T.; Clariá, J. J.; Geisler, D.; Ahumada, A. V.

    We study 11 probable binary or multiple systems of star clusters (SCs) of the Large Magellanic Cloud. They are formed by 31 SCs; out of which 19 have been observed in the Washington system with the Cerro Tololo ``Victor Blanco'' 4m telescope. We confirm a high probability of physical reality for some of the studied binary or multiple system candidates. We also determine their probable formation epochs and show that some of them could not be genuine physical systems. In all cases we recommend to confirm the physical association of these SC systems by examining their heliocentric distances and relative radial velocities. FULL TEXT IN SPANISH

  8. Sistemas No-Integrveis 6.1 O Mtodo WKB Dependente do Tempo

    E-print Network

    de Aguiar, Marcus A. M.

    . Os momentos inicial e final são p R q0 = / e p q= / . Dessa forma, dada uma superfície lagrangeana clássica dessa superfície, ou seja, cada ponto inicial ( )00 , pq L0 vai em ( ) ( )( )tptq , Lt onde q(t) e 1, 1 > 0, mesmo que muito pequenos. Dessa forma, a construção de funções estacionárias torna

  9. sistemA de CotAs PArA negros dA

    E-print Network

    Maier, Rudolf Richard

    10/12. o presente relatório é fruto do trabalho dessa comissão, que contou com o apoio estatístico do a discussão dessa po- lítica. Por esse motivo, o relatório é mais descritivo do que propositivo. #12;4 Análise

  10. Sistemas de ecuaciones lineales Comenzamos este primer tema con un problema de motivacion.

    E-print Network

    Hurtado, Ana

    de ox´igeno y un 1 por ciento de arg´on. Para poder realizar un experimento en el planeta Marte se forma de rect´angulo, que usualmente se delimitan por medio de par´entesis. Si una matriz tiene n filas

  11. Curso Introductorio sobre el Sistema DIALOG (Introductory Course on the DIALOG System).

    ERIC Educational Resources Information Center

    Rodriguez, Ketty

    As an introduction to the use of the DIALOG online retrieval service, this guide presents material that was developed during a fellowship at Carlos III University, School of Library Science and Documentation, Madrid (Spain) and that is based on a course on the same subject taught in English at Texas Women's University. Although the use of DIALOG…

  12. Para Amal y Henry. Estas notas constituyen el material de apoyo para el curso de Sistemas

    E-print Network

    Guerra Hernández, Alejandro

    Para Amal y Henry. #12;#12;Prefacio Estas notas constituyen el material de apoyo para el curso de curso ha sido ofertado por la Facultad de F´isica e Inteli- gencia Artificial en cuatro ocasiones, dando lugar a cuatro tesis de maestr´ia. Aunque es un curso general sobre los SMA, el contenido del mismo est

  13. (2151) Mster en Ingeniera del Software, Mtodos Formales y Sistemas de Informacin -MISMFSI

    E-print Network

    Villanueva, Alicia

    2151-01-01

    Programación de Actividades Académicas Curso 2014 ­ 2015 El máster se modifica para este curso académico. Los docencia) y examen de asignaturas de primer curso pendientes de superar para completar la titulación. Asimismo podrán matricularse de asignaturas de segundo curso, en ese caso con derecho a recibir docencia y

  14. Coexistencia e integracion de comunicaciones inalambricas en sistemas de transmision opticos

    NASA Astrophysics Data System (ADS)

    Perez Soler, Joaquin

    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.

  15. http://astronomy.swin.edu.au/~pbourke/fractals/lorenz/ Il sistema di Lorenz

    E-print Network

    Mocenni, Chiara

    valore di r pari a 24.74 le parti reali dei tre autovalori non risultano essere tutte negative. Da questo.74 le parti reali dei tre autovalori non risultano essere tutte negative. Da questo punto in poi

  16. Suporte `a computac~ao orientada aos grupos em sistemas distribuidos tolerantes a faltas

    E-print Network

    Rodrigues, Luís E.T.

    ¸ ~ao em grupo de modo eficiente sobre este tipo de infra-estrutura, prop ~oe-se uma arquitectura hier¸ ~ao destas tecnologias, a dissertac¸ ~ao sugere uma arquitectura gen´erica para su- portar interacc estar replicados. Esta arquitectura permite suportar de um modo integrado diversos protocolos de gest

  17. Incentivos para atraer y retener personal de salud de zonas rurales del Perú: un estudio cualitativo

    PubMed Central

    Huicho, Luis; Canseco, Francisco Díez; Lema, Claudia; Miranda, J. Jaime; Lescano, Andrés G.

    2014-01-01

    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. PMID:22488318

  18. Resonancias en la región trans-neptuniana

    NASA Astrophysics Data System (ADS)

    Gallardo, T.; Ferraz-Mello, S.

    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.

  19. DATOS RPIDOS PARA ESTUDIANTES INTERNACIONALES

    E-print Network

    ;PROGRAMAS ACADÉMICOS UBICADOS EN LOS PRINCIPALES 20 O PRINCIPALES 20 PORCENTAJE ARQUITECTURA: DISEÑO EDUCACIÓN LIDERAZGO EDUCATIVO LEY MEDIOAMBIENTAL CIENCIAS GEOLÓGICAS GEOGRAFÍA ARQUITECTURA DE INTERIORES

  20. GPS, punto de contacto entre la Astronomía y otras disciplinas

    NASA Astrophysics Data System (ADS)

    Perdomo, R.

    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.

  1. Determinacion de Caracteristicas Opticas del Telescopio OAN150

    NASA Astrophysics Data System (ADS)

    Galan, M. J.; Cobos, F. J.

    1987-05-01

    En el Observatorio de Calar Alto, en Almería, España, está ubicado un telescopio de 15O-cms de diámetro -construído por REOSC- perteneciente al Observatorio Astronómico Nacional, con sede en Madrid, España. La infraestructura técnica del OAN ha sido tradicionalmente débil y actualmente se está haciendo un esfuerzo por fortalecerla. Existe una información muy limitada del telescopio en general; de su óptica en particular se conocían los valores de los parámetros principales pero sin saber si éstos corresponden a valores teóricos ó de construcción. Por ello se consideró necesario iniciar una investigación para conocer en detalle los valores reales de las componentes ópticas del telescopio, obteniéndose algunos resultados de interés. El primario del telescopio OANl5O es aproximadamente F/3 y el siste ma en su conjunto es F/8.2, con su sistema corrector de campo. En términos generales, la imagen es satisfactoria en todo el campo y, sin sistema corrector, la imagen axial también es buena. En un futuro muy cercano se piensa diseñar instrumentación adicional para este telescopio. Conocer con mayor precisión sus características puede ser de gran utilidad para tal fin, pues se efectúan los cálculos considerando conjuntamente al telescopio y al instrumento.

  2. Beyond Firewalls: Professional Certification Ensures Your Staff Will Understand Information Security in Its Proper Context

    ERIC Educational Resources Information Center

    Svetcov, Eric

    2004-01-01

    When it comes to security, many people do not know what they do not know. Consider for example, an administrator who leaves her password taped under her keyboard, or a teacher who doesn't change his password (ever!) or can't be bothered to log out or lock the computer, all the firewalls and antivirus programs in the world will not protect a…

  3. New Student Checklist 1. Sign up for text/email emergency messages.

    E-print Network

    Saldin, Dilano

    PantherID & Password ePanther.uwm.edu Access to: · Web-based UWM services · Campus wireless network · Campus Computer & Procedures" 3. Make sure your computer has anti-virus software. security.uwm.edu 4. Set up your laptop and mobile devices to use the secure UWMWiFi option. UWMWiFi.uwm.edu 5. Download UWM's free mobile app for i

  4. An efficient synthesis of novel bis-triazole glycoconjugates via a three-component condensation as a key reaction.

    PubMed

    Cheng, Jie; Gu, Zhenlong; He, Caiyu; Jin, Jie; Wang, Lijun; Li, Guojun; Sun, Bei; Wang, Hui; Bai, Jun

    2015-09-23

    Novel bis-triazole glycoconjugates were designed and prepared successfully via 5 steps from propargyl per-O-acetyl-?-d-glucoside or xyloside (total yield of 48-53%), after utilizing a three-component condensation of propargyl per-O-acetyl-?-d-glycoside, formaldehyde, and sodium azide as a key step to synthesize 2-hydroxymethyl-2H-1,2,3-triazole glycoconjugates. The developed bis-triazole glycoconjugates would be crucial in antivirus pharmacology and chemical biology. PMID:26257377

  5. CRISPR sabotage.

    PubMed

    van der Oost, John; Brouns, Stan J J

    2015-01-01

    The biological arms race generally involves the rapid co-evolution of anti-virus systems in host organisms and of anti-anti-virus systems in their viral parasites. The CRISPR-Cas system is an example of a prokaryotic immune system in which such co-evolution occurs, as was recently demonstrated by the characterization of a set of viral anti-CRISPR proteins. PMID:26553202

  6. Passaremos agora ao estudo de sistemas com mais de um grau de liberdade. Existe a um salto qualitativo muito grande devido ao fato de que, em geral, sistemas com mais de um grau de liberdade so

    E-print Network

    de Aguiar, Marcus A. M.

    uma condição inicial ( ) ( ) q R q,0 = , a solução dessa equação diferencial é [22] [ ]dt no tempo t. Os momentos inicial e final são dados por p R q 0 0 = e p q = . Dessa forma, a evolução do tempo. Soluções completas dessa equação diferencial só existem quando o Hamiltoniano é integrável

  7. EXAMEN DE ALGOR ITMICA. Segundo Ingenier a T ecnica en Inform atica de Gesti on y de Sistemas. Diciembre 2002

    E-print Network

    Giménez, Domingo

    otro caso i = i 4 #12;nsi #12;nmientras a) (1.5 puntos) Calcular O y #18; del tiempo de ejecuci#19;on #12;npara si valor > V O fo = f co = c V O = valor #12;nsi #12;npara #12;npara a) (1 punto) Obtener

  8. Study of apsidal motion in massive close binary systems. (Spanish Title: Estudio del movimiento apsidal en sistemas binarios masivos)

    NASA Astrophysics Data System (ADS)

    Ferrero, G.; Gamen, R.; Fernández-Lajús, E.

    In O+OB close binary systems, superior order momenta of the classical gravitational potential and general relativity effects produce a secular motion of the apsides. This phenomenon, together with theoretical stellar structure models, can be used to estimate the absolute masses of the system components, even for non-eclipsing binaries. We are conducting a spectroscopic study of eccentric close O+OB binaries in order to detect or confirm the existence of apsidal motion, determine its rate, and calculate the absolute masses of the stars. In this work we describe the current status of the project and present some preliminary results obtained for the systems iota Ori A, HD 93205, HD 152248, and HD 165052.

  9. Escola de EngenhariaUniversidade do Minho Departamento de Sistemas de Informao MERCADOS E NEGCIOS: DINMICAS E ESTRATGIAS

    E-print Network

    Instituto de Sistemas e Robotica

    " Julho 2013 Rediscovering the economic film by Michael Polanyi (1940) Eduardo Beira #12;»«MERCADOS E NEGÓCIOS: DINÂMICAS E ESTRATÉGIAS »«wp 129 (2013) 2 Rediscovering the economic film by Michael Polanyi of the 2012 Loyola University (Chicago) conference of the Polanyi Society in June 2012 that included

  10. Distribuciones Espectrales de Energía de las compañeras visibles en sistemas binarios que albergan agujeros negros de masas estelares

    NASA Astrophysics Data System (ADS)

    Cúneo, V. A.; Gómez, M. N.

    Stellar mass black holes are mainly detected in binary systems; where the compact object accretes material from its visible compa-nion. With the objective of characterizing visible companions; we analyse the Spectral Energy Distributions (SEDs) of a sample of these objects; selected from a galactic stellar black holes catalogue built by the authors. Using the VOSA SED Analyzer; we obtained; from several catalogues; the fluxes to construct the SEDs. A black body for a single star was adjusted for every observed SED. The excesses found between these distributions are attributed to the presence of the compact object. FULL TEXT IN SPANISH

  11. Avaliao de dados dos Sistemas de Alerta da Amaznia: DETER e SAD Maria Isabel Sobral Escada1

    E-print Network

    comparing two deforestation monitoring system data, DETER and SAD, for the period of August 2008 to July 2009 for Amazônia Legal region. This study uses as reference clear cut deforestation data from PRODES, and forest degradation data from DEGRAD (INPE). DETER is a deforestation Alert System developed by INPE

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

    ERIC Educational Resources Information Center

    Peace Corps, Washington, DC.

    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)…

  13. Life Support Systems. Environment Booklet 1. Teacher's Edition=Sistemas vitales. Libro del medio ambiente 1. Manual para El Maestro.

    ERIC Educational Resources Information Center

    California State Univ., Los Angeles. National Dissemination and Assessment Center.

    The booklet is part of a grade 10-12 social studies series produced for bilingual education. The series consists of six major thematic modules, with four to five booklets in each. The interdisciplinary modules are based on major ideas and designed to help students understand some major human problems and make sound, responsive decisions to improve…

  14. Estudio del sistema de cúmulos globulares de la galaxia lenticular NGC6861: en busca de evidencias de una fusión.

    NASA Astrophysics Data System (ADS)

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

    We present a photometric study of the globular cluster system (GCS); associated to the lenticular galaxy NGC6861. It is based on GEMINI/GMOS images in the filters g'; r'; i' of three fields; one of them centered on the galaxy. Studying the colour-magnitude diagram of the system; we detect the presence of at least two populations of GCs (``blue'' and ``red'') and the presence of the phenomenon known as ``blue-tilt''. However; analyzing the colour distribution we infer the existence of a third population with intermediate colours which could be interpreted as evidence of a past interaction or fusion event. FULL TEXT IN SPANISH

  15. Sistemas Eolicos Pequenos para Generacion de Electridad (Spanish version of Small Wind Electric Systems: A U.S. Consumer's Guide)

    SciTech Connect

    Not Available

    2005-07-01

    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 business based on their wind resource, energy needs, and economics. Topics include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a list of contacts for more information.

  16. Analysis of the maximum discharge of karst springs

    NASA Astrophysics Data System (ADS)

    Bonacci, Ognjen

    2001-07-01

    Analyses are presented of the conditions that limit the discharge of some karst springs. The large number of springs studied show that, under conditions of extremely intense precipitation, a maximum value exists for the discharge of the main springs in a catchment, independent of catchment size and the amount of precipitation. Outflow modelling of karst-spring discharge is not easily generalized and schematized due to numerous specific characteristics of karst-flow systems. A detailed examination of the published data on four karst springs identified the possible reasons for the limitation on the maximum flow rate: (1) limited size of the karst conduit; (2) pressure flow; (3) intercatchment overflow; (4) overflow from the main spring-flow system to intermittent springs within the same catchment; (5) water storage in the zone above the karst aquifer or epikarstic zone of the catchment; and (6) factors such as climate, soil and vegetation cover, and altitude and geology of the catchment area. The phenomenon of limited maximum-discharge capacity of karst springs is not included in rainfall-runoff process modelling, which is probably one of the main reasons for the present poor quality of karst hydrological modelling. Résumé. Les conditions qui limitent le débit de certaines sources karstiques sont présentées. Un grand nombre de sources étudiées montrent que, sous certaines conditions de précipitations extrêmement intenses, il existe une valeur maximale pour le débit des sources principales d'un bassin, indépendante des dimensions de ce bassin et de la hauteur de précipitation. La modélisation des débits d'exhaure d'une source karstique n'est pas facilement généralisable, ni schématisable, à cause des nombreuses caractéristiques spécifiques des écoulements souterrains karstiques. Un examen détaillé des données publiées concernant quatre sources karstiques permet d'identifier les raisons possibles de la limitation de l'écoulement maximal: (1) la dimension limitée du conduit karstique, (2) l'écoulement en charge, (3) le débordement dans un autre bassin, (4) le débordement du réseau s'écoulant vers la source principale par des sources temporaires dans le même bassin, (5) le stockage d'eau dans la zone surmontant l'aquifère karstique ou la zone épikarstique du bassin, et (6) des facteurs tels que le climat, le sol et le couvert végétal, l'altitude et la géologie du bassin d'alimentation. Le phénomène de capacité limitée du débit maximal des sources karstiques n'est pas pris en compte dans la modélisation des processus de précipitation-ruissellement, ce qui est probablement une des principales raisons de l'actuelle médiocre qualité de la modélisation hydrologique du karst. Resumen. Se presenta un análisis de las condiciones que limitan la descarga de algunos manantiales kársticos. Un elevado número de los manantiales estudiados muestra que, bajo condiciones de precipitación extremadamente intensa, hay un valor máximo para la descarga de los manantiales principales de la cuenca, independientemente del tamaño de ésta y del volumen de precipitación. La modelación de la descarga de manantiales kársticos no es fácil de generalizar y esquematizar debido a la existencia de numerosas características que son inherentes a los sistemas kársticos de flujo. A partir del estudio detallado de los datos publicados sobre cuatro manantiales kársticos, se identificó las posibles causas de la existencia de un caudal máximo de descarga: (1) el tamaño limitado del conducto kárstico, (2) el caudal surgente, (3) la descarga a otras cuencas, (4) el desbordamiento del sistema de flujo principal hacia manantiales intermitentes dentro de la misma cuenca, (5) el almacenamiento de agua en la zona superior del acuífero kárstico o zona epikárstica de la cuenca, y (6) factores tales como el clima, suelo y cubierta vegetal, y la altitud y geología de la zona de captación. La limitación de la descarga máxima de los manantiales kársticos no ha sido incluida en la modelación del proceso lluvi

  17. Aplicación de la metodología Molecular de Orbitales de Defecto Cuántico (MQDO) al cálculo de intensidades vibrónicas y vidas medias de niveles vibracionales

    NASA Astrophysics Data System (ADS)

    María Velasco Sanz, Ana

    Desde que se formuló, en 1996, la metodología Molecular de Orbitales de Defecto Cuántico (MQDO) [1], se han obtenido datos de calidad relativos a intensidades de bandas electrónicas que implican estados Rydberg para una gran variedad de sistemas moleculares [2]. Animados por los buenos resultados obtenidos, recientemente hemos abordado el estudio de transiciones vibrónicas, es decir aquellas que ocurren entre estados vibracionales que pertenecen a distintos estados Rydberg electrónicos. Como prototipo adecuado para nuestros propósitos hemos elegido la molécula de NO, importante en la química de la atmósfera, y para la cual existen en la bibliografía datos experimentales de calidad suficiente para contrastar la validez de nuestros resultados. En concreto, hemos calculado las fuerzas de oscilador y coeficientes de Einstein para transiciones electrónicas y vibrónicas de las principales bandas del NO, al igual que vidas medias radiativas de niveles vibracionales de dicha molécula. Las propiedades estudiadas son esenciales para la comprensión de los aspectos teóricos de los procesos físicos básicos relativos a la dispersión electrónica en moléculas heteronucleares con capas abiertas. Además, valores fiables de probabilidades de transición moleculares tienen importantes aplicaciones en Astrofísica, en la modelización de procesos fotodinámicos moleculares, etc., al igual que para evaluar más profundamente la validez de nuestra metodología teórica.

  18. ADIPOQUINAS EN EL NIÑO SANO Y AFECTO DE OBESIDAD

    PubMed Central

    Martos-Moreno, G.A.; Kopchick, J.J.; Argente, y J.

    2015-01-01

    El incremento universal de la prevalencia de obesidad en niños y adolescentes durante las últimas décadas, junto con la evidencia creciente de que el establecimiento de obesidad en etapas precoces de la vida está asociado con un incremento de la prevalencia de comorbilidades y del riesgo de muerte prematura, con gran repercusión económica en los sistemas sanitarios de los países occidentales, ha impulsado la investigación en este área. Estos estudios han remarcado la importante actividad endocrina del tejido adiposo, ejercida por medio de la síntesis y secreción de un gran número de péptidos y citoquinas, denominados adipoquinas. En esta revisión se resume el estado actual de los conocimientos, así como los estudios más relevantes, en relación con la dinámica de secreción de las principales adipoquinas en niños, centrándose en el control de la homeostasis energética, regulación metabólica (fundamentalmente, metabolismo de los hidratos de carbono) e inflamación. Asímismo, se analizan las particularidades de la síntesis, secreción y acciones de las adipoquinas desde el nacimiento hasta la adolescencia, reseñando el efecto que, sobre ellas, ejerce la instauración de la obesidad. PMID:23228441

  19. Iridoid and bis-iridoid glucosides from the fruit of Gardenia jasminoides.

    PubMed

    Li, Hai-Bo; Yu, Yang; Wang, Zhen-Zhong; Dai, Yi; Gao, Hao; Xiao, Wei; Yao, Xin-Sheng

    2013-07-01

    Three new iridoid glucosides, 6?-O-trans-feruloylgenipin gentiobioside (1), 2'-O-trans-caffeoylgardoside (2), jasmigeniposide A (3), and one new bis-iridoid glucoside, jasmigeniposide B (4), along with six known analogues (5-10), were isolated from the fruit of Gardenia jasminoides. Their structures were established on the basis of spectroscopic analyses and chemical methods. Anti-virus activity of isolated compounds were evaluated in vitro and only compound 9 showed moderate inhibitory activity against H1N1 with 50% effective concentration (EC50) value of 104.36 ?M, and selective index (SI) value greater than 4.79. PMID:23567862

  20. Evaluation of Tools for Protection of Interest against Hacking and Cracking

    NASA Astrophysics Data System (ADS)

    Jahankhani, Hossein; Antonijevic, Branko; Walcott, Terry

    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.

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

    NASA Astrophysics Data System (ADS)

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

    1995-02-01

    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.

  2. Design and Implementation of a Secure Modbus Protocol

    NASA Astrophysics Data System (ADS)

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

    The interconnectivity of modern and legacy supervisory control and data acquisition (SCADA) systems with corporate networks and the Internet has significantly increased the threats to critical infrastructure assets. Meanwhile, traditional IT security solutions such as firewalls, intrusion detection systems and antivirus software are relatively ineffective against attacks that specifically target vulnerabilities in SCADA protocols. This paper describes a secure version of the Modbus SCADA protocol that incorporates integrity, authentication, non-repudiation and anti-replay mechanisms. Experimental results using a power plant testbed indicate that the augmented protocol provides good security functionality without significant overhead.

  3. EXAMEN DE ALGOR ITMICA, segundo de Ingenier a T ecnica en Inform atica de Gesti on y de Sistemas, septiembre 2002

    E-print Network

    Giménez, Domingo

    : indices ) i = 1 cont = 0 mientras i #20; n 2 si a[i] = a[i + 1] si a[i] = a[i + 2] cont ++ #12;nsi #12;nsi cont ++ i ++ #12;nsi #12;nmientras devolver cont Se puede demostrar formalmente que el tiempo promedio[izq + 2] devolver 1 en otro caso devolver 0 #12;nsi en otro caso devolver 0 #12;nsi donde en combinar se

  4. Um Sistema de Simulao 3D de Evacuao de Emergncia em Plataformas de A 3D Simulation System for Emergency Evacuation in Offshore Platforms

    E-print Network

    Barbosa, Alberto

    arquitetura uma engine de jogos (Unity). A solução desenvolvida foi testada em modelos de plataformas reais; Multidão; Engine de Jogos; Petróleo e Gás; 3D Abstract--An application for evacuation simulation using

  5. Consideriamo il sistema mostrato in figura 1, costituito da due aste AC e BC, di ugual massa b ed ugual lunghezza L, vincolate con cerniera nell'estremo

    E-print Network

    Demeio, Lucio

    determinare le reazioni vincolari utilizzando le equazioni cardinali della dinamica. x s y O A B C Figura 1 separatamente. Nell'applicare le equazioni cardinali a ciascuna asta, dobbiamo rappresentare l'azione dell j. Il diagramma delle forze `e illustrato in figura 2. Per scrivere le equazioni cardinali

  6. Sistema Integral para Construir y Explotar Bases de Datos Geogrficas Va Integral System to Build and Exploit Geographical Information Systems via Internet

    E-print Network

    Sagols, Feliú

    System to Build and Exploit Geographical Information Systems via Internet Feliú D. Sagols Troncoso1 Geographical Information Systems (GIS) by the Internet in a client-server architecture. The system has evolved from a project designed in 1996 to establish links between spatial and alphanumeric information

  7. 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

    Migrant Clinicians Network, Inc., Austin, TX.

    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…

  8. PLANEACION MULTIOBJETIVO EN LOS DISTRITOS DE RIEGO EN MEXICO. APLICACION DE UN SISTEMA DE AUXCLIO PARA LA TOMA DE DECISIONES 1817

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The problem of agreement among interests in the management of natural resources is complex with interactions difficult of measure. Watershed users have several objectives that impact in the short run the environment. Multiobjective decision theory considers interests, options and impacts of possible...

  9. Sistemas de Documentacion e Informacion Educativa en Belgica, Paises Bajos y Francia (Educational Documentation and Information Systems in Belgium, Holland, and France).

    ERIC Educational Resources Information Center

    Rossi Etchelouz, Nelly Yvis

    This booklet describes the working and organization of the information and documentation systems in Belgium, the Netherlands, and France. The discussion begins with a look at the Belgium educational system and how information services operate within that system. The central library, specialized services, and specialized information centers are all…

  10. Sistema de Transferencia de Archivos para Estudiantes Migrantes: Un Mejor Entendimiento para Padres. (Migrant Student Record Transfer System: A Better Understanding for Parents).

    ERIC Educational Resources Information Center

    Jaramillo, Senaida I.

    When migrant children are enrolled in the Migrant Education Program, they are also enrolled in the Migrant Student Record Transfer System (MSRTS), a national system which accumulates educational and health information for each child on a computer located in Little Rock, Arkansas. The system affords teachers the opportunity to review the records,…

  11. 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

    Arredondo, C.; And Others

    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,…

  12. XII CURSO DE INICIACIN A LA INVESTIGACIN EN ESTRUCTURA DE LA MATERIA: DESDE LAS PARTCULAS ELEMENTALES A LOS SISTEMAS DE ALTO PESO MOLECULAR

    E-print Network

    XII CURSO DE INICIACI�N A LA INVESTIGACI�N EN ESTRUCTURA DE LA MATERIA: DESDE LAS PARTÍCULAS cursos de grado en Ciencias e Ingenierías. El objetivo de este curso es iniciar a los estudiantes en la instalaciones experimentales del instituto y entrevistas con los investigadores. Título del curso Resumen del

  13. El humanismo y la educacion en diversos niveles del sistema educativo national (Humanism and Education at Different Levels of the National Education System).

    ERIC Educational Resources Information Center

    Consejo Nacional Tecnico de la Educacion (Mexico).

    This document is an English-language abstract (approximately 1,500 words) of six studies of the different levels of education and the humanistic content of the teaching program at each level. On the preschool level, it is stated that kindergarten education in Mexico attempts to put the small child in contact with the world that surrounds him.…

  14. I Workshop de Tec. da Inf. Apl. ao Meio Ambiente -CBComp 2003 Sis. de Apoio Tomada de Deciso DESIGN DE UM SISTEMA DE SUPORTE DECISO BASEADO

    E-print Network

    Cengarle, María Victoria

    I Workshop de Tec. da Inf. Apl. ao Meio Ambiente - CBComp 2003 Sis. de Apoio à Tomada de Decisão Workshop de Tec. da Inf. Apl. ao Meio Ambiente - CBComp 2003 Sis. de Apoio à Tomada de Decisão 1895 de conhecimento com base em modelos fornecem meios para tornar disponível o conhecimento de

  15. Osnovi polojenia na reformata v obrasovatelnata sistema na Narodna republika Bulgaria (Basic Provisions of the Reform of the Public Education System in the People's Republic of Bulgaria).

    ERIC Educational Resources Information Center

    Bulgarian Communist Party, Sofia.

    This document is an English language abstract (approximately 1,500 words) of the reform provisions of the Bulgarian education system as formulated by the Bulgarian Communist Party in 1969. These reforms include the following items: access to compulsory secondary education for all; enrollment of all six-year olds; teachers to be specialized from…

  16. "Buddy System": A Pedagogical Innovation to Promote Online Interaction (Sistema de amigos: una innovación pedagógica para fomentar la interacción en línea)

    ERIC Educational Resources Information Center

    Espitia Cruz, Martha Isabel; Kwinta, Anna

    2013-01-01

    Recent technological development has created new pedagogical practices in the EFL classroom to maximize the time for students to use the language by considering online tools. Whilst working in a pedagogical context with new technologies, some educators were concerned with how online interaction in EFL content-based classes could be effectively…

  17. Conjunctival Flap Covering Combined with Antiviral and Steroid Therapy for Severe Herpes Simplex Virus Necrotizing Stromal Keratitis

    PubMed Central

    Jia, Yanni; Li, Suxia; Wang, Ting; Tan, Yaohong; Shi, Weiyun

    2015-01-01

    Herpes simplex virus (HSV) necrotizing stromal keratitis is a common type of herpetic stromal keratitis (HSK). Antiviral medication alone cannot control the disease, and corticosteroid eye drops may aggravate the ulcer and result in corneal perforation. Amniotic membrane transplantation effectively treats superficial corneal ulcer resulting from necrotizing stromal HSK. However, the efficacy of this approach seems to be limited for more serious cases. This study presented the clinical treatment of severe HSV necrotizing stromal keratitis (ulcer depth greater than half of the corneal stroma) by conjunctival flap covering surgery in 25 patients (25 eyes) combined with antivirus and corticosteroid treatment at Shandong Eye Hospital from January 2007 to December 2013. Clinical results showed that the mean best spectacle-corrected visual acuity improved from preoperative 20/333 to postoperative 20/40 (P < 0.05). All patients recovered ocular surface stabilization. There was recurrence in two eyes, which was cured with antiviral medication. Conjunctival flap covering combined with antivirus and corticosteroid treatment is effective in treating severe HSV necrotizing stromal keratitis. PMID:25785282

  18. Malware Detection Module using Machine Learning Algorithms to Assist in Centralized Security in Enterprise Networks

    E-print Network

    Singhal, Priyank; 10.5121/ijnsa.2012.4106

    2012-01-01

    Malicious software is abundant in a world of innumerable computer users, who are constantly faced with these threats from various sources like the internet, local networks and portable drives. Malware is potentially low to high risk and can cause systems to function incorrectly, steal data and even crash. Malware may be executable or system library files in the form of viruses, worms, Trojans, all aimed at breaching the security of the system and compromising user privacy. Typically, anti-virus software is based on a signature definition system which keeps updating from the internet and thus keeping track of known viruses. While this may be sufficient for home-users, a security risk from a new virus could threaten an entire enterprise network. This paper proposes a new and more sophisticated antivirus engine that can not only scan files, but also build knowledge and detect files as potential viruses. This is done by extracting system API calls made by various normal and harmful executable, and using machine l...

  19. university-logo Sincronizacin de Relojes Fsicos

    E-print Network

    Rajsbaum, Sergio

    university-logo Sincronización de Relojes Físicos Ejemplo de Gráficas de Sincronización Sergio Sistemas Distirbuidos #12;university-logo Sincronización de Relojes Físicos Sistema parcialmente síncrono en su retardo Facultad de Ciencias Sistemas Distirbuidos #12;university-logo Sincronización de

  20. Evolución de estrellas de Helio

    NASA Astrophysics Data System (ADS)

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

    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.

  1. ECOLOGA APLICADA Y CAMBIO Grado en Biologa

    E-print Network

    Rey Benayas, José María

    cambios que las actividades humanas producen en los ecosistemas así como de las herramientas principales Módulo I: Biodiversidad, servicios ecosistémicos y huella ecológica: - Biodiversidad, ecosistemas y

  2. Deep PDF parsing to extract features for detecting embedded malware.

    SciTech Connect

    Munson, Miles Arthur; Cross, Jesse S.

    2011-09-01

    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.

  3. Universit degli Studi di Roma "La Sapienza" CF 80209930587 PI 02133771002

    E-print Network

    Di Pillo, Gianni

    su Google Apps, di sistemi documentali basati su Microsoft Sharepoint Server 2013; Conoscenza Laboratorio Leopardi (basato sul sistema Drupal), di un sistema di posta elettronica (basato su Google Apps Drupal), di un sistema di posta elettronica (basato su Google Apps), configurazione di un sistema per l

  4. Corso di Laurea in Ingegneria Meccanica Anno Accademico 2011/2012

    E-print Network

    Demeio, Lucio

    ) scrivere l'energia cinetica del sistema; (c) scrivere l'energia potenziale del sistema; (d) scrivere le libert`a e scegliere le coordinate lagrangiane; (b) scrivere l'energia cinetica del sistema; (c) scrivere l'energia potenziale del sistema; (d) scrivere le equazioni di Lagrange. x y O C RQ H K P,m M #12

  5. On-Site Wastewater Treatment Systems: Alternative Collection Systems (Spanish) 

    E-print Network

    Lesikar, Bruce J.; Enciso, Juan

    2002-04-22

    de OyM* (capital anualizado Opci?n tecnol?gica ($ de 1995) ($ de 1995) m?s OyM* - $ de 1995) Sistemas centralizados $2,321,840 - $3,750,530 $29,740 - $40,260 $216,850 - $342,500 Sistemas de recolecci?n AGDP** y sistemas peque?os de agrupamiento...?ptico Efluente Sistemas individuales para el tratamiento de aguas negras Sistemas de recolecci?n alternativos Bruce Lesikar y Juan Enciso Promotores Especialistas en Ingenier?a Agr?cola El Sistema Universitario Texas A&M B-6098S 4-02 Figura 1: Un sistema de...

  6. A study of malware detection on smart mobile devices

    NASA Astrophysics Data System (ADS)

    Yu, Wei; Zhang, Hanlin; Xu, Guobin

    2013-05-01

    The growing in use of smart mobile devices for everyday applications has stimulated the spread of mobile malware, especially on popular mobile platforms. As a consequence, malware detection becomes ever more critical in sustaining the mobile market and providing a better user experience. In this paper, we review the existing malware and detection schemes. Using real-world malware samples with known signatures, we evaluate four popular commercial anti-virus tools and our data shows that these tools can achieve high detection accuracy. To deal with the new malware with unknown signatures, we study the anomaly based detection using decision tree algorithm. We evaluate the effectiveness of our detection scheme using malware and legitimate software samples. Our data shows that the detection scheme using decision tree can achieve a detection rate up to 90% and a false positive rate as low as 10%.

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

    NASA Astrophysics Data System (ADS)

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

    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.

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

    NASA Astrophysics Data System (ADS)

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

    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.

  9. The effect of infected external computers on the spread of viruses: A compartment modeling study

    NASA Astrophysics Data System (ADS)

    Yang, Lu-Xing; Yang, Xiaofan

    2013-12-01

    Inevitably, there exist infected computers outside of the Internet. This paper aims to understand how infected external computers affect the spread of computer viruses. For that purpose, a new virus-antivirus spreading model, which takes into account the effect of infected/immune external computers, is established. A systematic study shows that, unlike most previous models, the proposed model admits no virus-free equilibrium and admits a globally asymptotically stable viral equilibrium. This result implies that it would be practically impossible to eradicate viruses on the Internet. As a result, inhibiting the virus prevalence to below an acceptable level would be the next best thing. A theoretical study reveals the effect of different parameters on the steady virus prevalence. On this basis, a number of suggestions are made so as to contain virus spreading.

  10. Collecting Autonomous Spreading Malware Using High-Interaction Honeypots

    NASA Astrophysics Data System (ADS)

    Zhuge, Jianwei; Holz, Thorsten; Han, Xinhui; Song, Chengyu; Zou, Wei

    Autonomous spreading malware in the form of worms or bots has become a severe threat in today's Internet. Collecting the sample as early as possible is a necessary precondition for the further treatment of the spreading malware, e.g., to develop antivirus signatures. In this paper, we present an integrated toolkit called HoneyBow, which is able to collect autonomous spreading malware in an automated manner using high-interaction honeypots. Compared to low-interaction honeypots, HoneyBow has several advantages due to a wider range of captured samples and the capability of collecting malware which propagates by exploiting new vulnerabilities. We validate the properties of HoneyBow with experimental data collected during a period of about nine months, in which we collected thousands of malware binaries. Furthermore, we demonstrate the capability of collecting new malware via a case study of a certain bot.

  11. Interaction of nanodiamonds materials with influenza viruses

    NASA Astrophysics Data System (ADS)

    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

    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.

  12. Metamorphic Virus Variants Classification Using Opcode Frequency Histogram

    E-print Network

    Rad, Babak Bashari

    2011-01-01

    In order to prevent detection and evade signature-based scanning methods, which are normally exploited by antivirus software, metamorphic viruses use several various obfuscation approaches. They transform their code in new instances as look entirely or partly different and contain dissimilar sequences of string, but their behavior and function remain unchanged. This obfuscation process allows them to stay away from the string based signature detection. In this research, we use a statistical technique to compare the similarity between two files infected by two morphed versions of a given metamorphic virus. Our proposed solution based on static analysis and it uses the histogram of machine instructions frequency in various offspring of obfuscated viruses. We use Euclidean histogram distance metric to compare a pair of portable executable (PE) files. The aim of this study is to show that for some particular obfuscation methods, the presented solution can be exploited to detect morphed varieties of a file. Hence,...

  13. Access Control of Web and Java Based Applications

    NASA Technical Reports Server (NTRS)

    Tso, Kam S.; Pajevski, Michael J.; Johnson, Bryan

    2011-01-01

    Cyber security has gained national and international attention as a result of near continuous headlines from financial institutions, retail stores, government offices and universities reporting compromised systems and stolen data. Concerns continue to rise as threats of service interruption, and spreading of viruses become ever more prevalent and serious. Controlling access to application layer resources is a critical component in a layered security solution that includes encryption, firewalls, virtual private networks, antivirus, and intrusion detection. In this paper we discuss the development of an application-level access control solution, based on an open-source access manager augmented with custom software components, to provide protection to both Web-based and Java-based client and server applications.

  14. Analysis and Synthesis of Leaky-Wave Devices in Planar Technology

    NASA Astrophysics Data System (ADS)

    Martinez Ros, Alejandro Javier

    The work developed along this doctoral thesis has been focused on the analysis and synthesis of microwave devices in planar technology. In particular, several types of devices based on the radiation mechanism of leaky waves have been studied. Typically, the radiation properties in leaky-wave devices are determined by the complex propagation constant of the leaky mode, wherein the phase constant is responsible for the pointing angle and the leakage rate for the intensity of the radiated fields. In this manner, by controlling both amplitude and phase of the leaky mode, an effective control over the device's radiation diagram can be obtained. Moreover, with the purpose of efficiently obtaining the leaky mode's radiation properties as function of the main geometrical parameters of the structure, several modal tools based on the transverse resonance analysis of the structure have been performed. In order to demonstrate this simultaneous control over the complex propagation constant in planar technology, several types of leaky-wave devices, including antennas (LWAs), multiplexors and near-field focusing systems, have been designed and manufactured in the technology of substrate integrated waveguide (SIW). This recently proposed technology, allows the design of devices based on classical waveguide technology with standard manufacturing techniques used for printed circuit board (PCB) designs. In this way, most of the parts that form a communication system can be integrated into a single substrate, thus reducing its cost and providing a more robust and compact device, which has less losses compared to other planar technologies such as the microstrip. El trabajo llevado a cabo durante la realizacion de esta tesis doctoral, se ha centrado en el analisis y sintesis de dispositivos de microondas en tecnologia planar. En concreto, se han estudiado diferentes tipos de dispositivos basados en radiacion por ondas de fuga "leaky waves", en los cuales las propiedades de radiacion estan determinadas por la constante de fase del modo "leaky" que es el que determina el angulo de apuntamiento y por la tasa de radiacion que es la que determina la intensidad de los campos radiados. De esta manera, controlando en amplitud y fase el modo "leaky" se puede obtener un control efectivo sobre el diagrama de radiacion del dispositivo. Ademas, con el objetivo de poder obtener de una manera mas eficiente las caracteristicas de propagacion de los modos de fuga "leaky" en funcion de los principales parametros geometricos de la estructura, se han desarrollado diversas herramientas de analisis modal basadas en la tecnica de resonancia transversa de la estructura. La capacidad para obtener un control simultaneo de la constante de propagacion compleja del modo "leaky", ha sido demostrada mediante el diseno y fabricacion de varios tipos de antena "leaky wave" (LWA) y de otros dispositivos como multiplexores y sistemas de enfoque en campo cercano. Para ello, se ha utilizado la tecnologia planar de guia de onda integrada en sustrato (susbstrate integrated waveguide, SIW). Esta recientemente desarrollada tecnologia, permite disenar dispositivos de microondas basados en tecnologia clasica de guia de ondas con sistemas de fabricacion estandar usados en tecnologia de circuitos impresos (printed circuit board, PCB). De esta forma, se pueden integrar en un mismo sustrato muchas de las diferentes partes que forman un sistema de comunicaciones, mejorando asi su robustez y compactibilidad, ademas de reducir el coste y de contar con menores perdidas que otras tecnologias planares como la microstrip.

  15. Como Lo Hago Yo: Mielomeningocele En Bolivia

    PubMed Central

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

    2014-01-01

    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. PMID:24791220

  16. Lack of security of networked medical equipment in radiology.

    PubMed

    Moses, Vinu; Korah, Ipeson

    2015-02-01

    OBJECTIVE. There are few articles in the literature describing the security and safety aspects of networked medical equipment in radiology departments. Most radiologists are unaware of the security issues. We review the security of the networked medical equipment of a typical radiology department. MATERIALS AND METHODS. All networked medical equipment in a radiology department was scanned for vulnerabilities with a port scanner and a network vulnerability scanner, and the vulnerabilities were classified using the Common Vulnerability Scoring System. A network sniffer was used to capture and analyze traffic on the radiology network for exposure of confidential patient data. We reviewed the use of antivirus software and firewalls on the networked medical equipment. USB ports and CD and DVD drives in the networked medical equipment were tested to see whether they allowed unauthorized access. Implementation of the virtual private network (VPN) that vendors use to access the radiology network was reviewed. RESULTS. Most of the networked medical equipment in our radiology department used vulnerable software with open ports and services. Of the 144 items scanned, 64 (44%) had at least one critical vulnerability, and 119 (83%) had at least one high-risk vulnerability. Most equipment did not encrypt traffic and allowed capture of confidential patient data. Of the 144 items scanned, two (1%) used antivirus software and three (2%) had a firewall enabled. The USB ports were not secure on 49 of the 58 (84%) items with USB ports, and the CD or DVD drive was not secure on 17 of the 31 (55%) items with a CD or DVD drive. One of three vendors had an insecure implementation of VPN access. CONCLUSION. Radiologists and the medical industry need to urgently review and rectify the security issues in existing networked medical equipment. We hope that the results of our study and this article also raise awareness among radiologists about the security issues of networked medical equipment. PMID:25615757

  17. F. Langrognet F. Langrognet () SVN Mars 2014 1 / 32

    E-print Network

    Jeanjean, Louis

    SVN F. Langrognet F. Langrognet () SVN Mars 2014 1 / 32 #12;PLAN 1 Principales commandes SVN 2 Gestion des conflits F. Langrognet () SVN Mars 2014 2 / 32 #12;PLAN 1 Principales commandes SVN 2 Cycle de conflits F. Langrognet () SVN Mars 2014 3 / 32 #12;checkout checkout Opération qui consiste à récupérer

  18. BIBLIOTECAPOLITCNICADISTRIBUCINTEMTICADELOSLIBROSENLOSESTANTES ESTANTESTEMASSIGNATURAS

    E-print Network

    Bilbao Arrese, Jesús Mario

    ­TEMASSIGNATURAS ESTANTERÍA Núm. TEMAS principales DE LOS LIBROS SIGNATURAS T 0 Libros de Consulta: Diccionarios de decoración interior / Mobiliario Inglés: Gramáticas, Libros de texto, Ejercicios ..... Series­DISTRIBUCIÓNTEMÁTICADELOSLIBROSENLOSESTANTES ESTANTES­TEMASSIGNATURAS ESTANTERÍA Núm. TEMAS principales DE LOS LIBROS SIGNATURAS T 2

  19. El CONTEXTO GEOHISTRICO DEEl CONTEXTO GEOHISTRICO DE LOS DELTAS MEDITERRNEOS:LOS DELTAS MEDITERRNEOS

    E-print Network

    Politècnica de Catalunya, Universitat

    ;1.1. HIDROESTRATIGRAFíAHIDROESTRATIGRAFíA DELTAICADELTAICA 1.1 RELACIÓN DE FACIES1.1 RELACIÓN DE FACIES 1.2 ARQUITECTURA1.2 ARQUITECTURA 1.3 PROCESOS1.3 PROCESOS 1.4 PRINCIPALES DELTAS MEDITERRÁNEOS1.4 PRINCIPALES DELTAS MEDITERRÁNEOS.2 ARQUITECTURA1.2 ARQUITECTURA ArquitecturaArquitectura deltaicadeltaica comocomo resultadoresultado de unde un

  20. Memorias Conferencia Internacional IEEE Mexico 1971, Sobre Sistemas, Redes Y Computadoras. Volumen I and Volumen II. (Proceedings of International Conference of IEEE Concerning Systems, Networks, and Computers. Volume I and Volume II.

    ERIC Educational Resources Information Center

    Concheiro, A. Alonso, Ed.; And Others

    The following papers in English from this international conference may be of particular interest to those in the field of education. T. Nakahara, A. Tsukamota, and M. Matsumoto describe a computer-aided design technique for an economical urban cable television system. W. D. Wasson and R. K. Chitkara outline a recognition scheme based on analysis…

  1. Comparing Teaching Styles and Personality Types of EFL Instructors in the Public and Private Sectors (Una comparación de los estilos de enseñanza y los tipos de personalidad de profesores de inglés de los sistemas educativos estatal y privado)

    ERIC Educational Resources Information Center

    Diaz Larenas, Claudio H.; Rodriguez Moran, Andrea Victoria; Poblete Rivera, Karen Jocelyn

    2011-01-01

    This is an exploratory non-experimental research study whose main objective is to compare the teaching styles of a group of thirty teachers of English working in either public or private secondary education in Chile. In order to collect the required data, two instruments were administered to the participants: a teaching style inventory and a…

  2. O mtodo WKB exposto no ltimo captulo no pode ser aplicado diretamente a sistemas genricos com mais de um grau de liberdade. A razo para isso ficar mais clara no captulo 6, onde trataremos de

    E-print Network

    de Aguiar, Marcus A. M.

    ¢¡ £¢¤¦¥§¡©¨ ¢¢ ¢¡ ©¨©§¢¢¢ ¢©¨ O método WKB exposto no último capítulo não pode ser aplicado) quanto sobre as funções de onda (os resíduos). Como discutimos no capítulo 1, G± pode ser obtida da intervalo de tempo finito pode ser expresso em termos de propagadores infinitesimais. O intervalo t é

  3. Metric System Resource Units = Unidades de Trabajo del Sistema Metrico Decimal. K-12. Project C.A.M.B.I.O., Changing Attitudes towards Metrics for Bilingual Instruction & Operations.

    ERIC Educational Resources Information Center

    Pulido, Josefina; Almendares, Simon

    Four resource units are included in this document. For each, general objectives on knowledge and concepts, skills, and attitudes are given; content is outlined; and some suggestions for initiating the unit are listed. The first unit, on measuring length, provides six lesson plans, to teach about the meter, the smaller units of the meter, units…

  4. CURRENT PEACH PRODUCTION PRACTICES INCLUDING NEX TRAINING SYSTEMS IN THE SOUTHEASTERN U.S. PRACTICAS ACTUALES DE PRODUCCION DE DURAZNO, INCLUYENDO SISTEMAS DE FORMACION EN EL SURESTE DE LOS ESTADOS UNIDOS

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The current production systems used commercially in the Southeastern United States are discussed in relation to their utility for commercial producers in Mexico. Standard southeastern cultural practices are discussed in detail. Topics covered include pre-plant land preparation, fumigation, nematod...

  5. Primera Reunion de la Comision Nacional de Analisis y Evaluacion del Sistema Educativo: Informe Final (The First Meeting of the National Committee for Analysis and Evaluation of the Educational System: Final Report).

    ERIC Educational Resources Information Center

    Ministerio de Cultura y Educacion, Buenos Aires (Argentina). Centro National de Documentacion e Informacion Educativa.

    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…

  6. Barok"t v slavjanskite literaturi. S osoben ogled na promenite v zhanrovata sistema na literaturite ot pravoslavnija region. Avtoreferat na disertacija za pris"zhdane na nauchnata i obrazovatelna stepen "Doktor" (05.04.06 - slavjanski literaturi)

    E-print Network

    Vassileva-Karagyozova, Svetlana

    2006-04-05

    stream_size 29 stream_content_type text/plain stream_name svk_avtoreferat_11apr07.pdf.txt stream_source_info svk_avtoreferat_11apr07.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  7. Investigacion educativa. El sistema escolar en sus diferentes niveles, factores que favorecen o frenan su eficacia y medidas de superacion (Educational Research. The Educational System at Different Levels; Factors Promoting or Hindering Its Efficiency; Possible Improvements.

    ERIC Educational Resources Information Center

    Jimenez Lozano, Blanca; And Others

    This document is an English-language abstract (Approximately 1,500 words) of a study on educational research in Mexico. Chapter one discusses the importance of educational research, in terms of its role both in scientific and technical development; it should use scientific methods so that it will have solid foundations. Chapter two is a survey of…

  8. Sistemas de Informacin Geogrfica (SIG) y su aplicacin en Historia y Arqueologa Subacutica, siglos XVI-XVIII. Este curso pretende ofrecer al alumno una perspectiva sobre las nuevas tecnologas aplicadas a la Historia moderna y la

    E-print Network

    , siglos XVI-XVIII. Este curso pretende ofrecer al alumno una perspectiva sobre las nuevas tecnologías histórico y conceptual de los SIG Históricos (HGIS) y manejo de herramientas. En este curso se profundizará-temporal, network analysis, Cartografía) Título del curso Resumen del contenido y objeto del curso Áreas de interés

  9. Instituto Nacional de Electrification, Guatemala Load Dispatch Center and Global Communications Center. Feasibility report (Instituto Nacional de Electrificacion, Guatemala Centro Nacional de Despacho de Carga y Sistema Global de Comunicaciones). Export trade information

    SciTech Connect

    Not Available

    1985-07-01

    The report presents the results of a feasibility study for the National Load Dispatch Center and Global Communications System Project in Guatemala. The project consists of a communication system which will provide Institute Nacional de Electrificacion (INDE) operations personnel direct voice access to all major power system facilities. In addition, a modern computer based load dispatch center has been configured on a secure and reliable basis to provide automatic generation control of all major interconnected generating plants within Guatemala.

  10. Pautas para Organizar Una Actividad de Capacitacion: Un Seminario-Taller para el Desarrollo de Personal de Direccion de Sistemas Educativos (Guidelines to Organize a Training Activity: A Workshop for Management Development of Educational Systems).

    ERIC Educational Resources Information Center

    Valle, Victor M.

    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…

  11. The origin of increased salinity in the Cambrian-Vendian aquifer system on the Kopli Peninsula, northern Estonia

    NASA Astrophysics Data System (ADS)

    Karro, Enn; Marandi, Andres; Vaikmäe, Rein

    Monitoring of the confined Cambrian-Vendian aquifer system utilised for industrial water supply at Kopli Peninsula in Tallinn over 24 years reveals remarkable changes in chemical composition of groundwater. A relatively fast 1.5 to 3.0-fold increase in TDS and in concentrations of major ions in ed groundwater is the consequence of heavy pumping. The main sources of dissolved load in Cambrian-Vendian groundwater are the leaching of host rock and the other geochemical processes that occur in the saturated zone. Underlying crystalline basement, which comprises saline groundwater in its upper weathered and fissured portion, and which is hydraulically connected with the overlying Cambrian-Vendian aquifer system, is the second important source of ions. The fractured basement and its clayey weathering crust host the Ca-Cl type groundwater, which is characterised by high TDS values (2-20 g/L). Intensive water ion accelerates the exchange of groundwaters and increases the area of influence of pumping. Chemical and isotopic studies of groundwater indicate an increasing contribution of old brackish water from the crystalline basement and rule out the potential implication of an intrusion of seawater into aquifer. L'origine de la salinité croissante dans le système aquifère du Cambrien-Vendien dans la péninsule de Kopli, nord de l'Estonie Le suivi à long terme du système aquifère captif du Cambrien-Vendien utilisé pour l'approvisionnement d'eaux industrielles dans la Péninsule de Kopli, nord de l'Estonie, révèle de remarquables changements dans la composition chimique des eaux souterraines. Une augmentation de facteur 1.5 à 3 de la TDS et des concentrations en ions majeurs dans l'eau souterraine est la conséquence de pompages intensifs. Les sources principales des charges dissoutes dans les eaux de l'aquifère du Cambrien-Vendien sont le lessivage des roches et d'autres phénomènes géochimiques ayant lieu dans la zone saturée. Le soubassement rocheux cristallin, qui renferme des eaux souterraines salines dans sa partie supérieure altérée et fissurée, et est hydrauliquement connecté avec l'aquifère supérieur du Cambrien-Vendien, est la deuxième importante source d'ions. Le soubassement fracturé et le matériel argileux de l'altération, renferme l'eau souterraine de type Ca-Cl, caractérisée par un haut TDS (2-20 g/l). A cause de la mobilisation intensive de l'eau les échanges d'eau souterraine est sont accélérés et la zone d'influence des pompages augmentent. Les études chimiques et isotopiques indiquent une contribution croissante du drainage des eaux du soubassement cristallin. L'intrusion d'eaux salées de la mer dans le système aquifère n'est pas un phénomène évident. El origen del incremento en salinidad en un sistema de acuíferos Cámbrico-Vendiano en la Península Kopli, norte de Estonie Monitoreo a largo plazo de un sistema de acuíferos confinados, de edad Cámbrico-Vendiano, que se utiliza como fuente de abastecimiento industrial en la Península Kopli, al norte de Estonie, revela cambios notables en la composición química del agua subterránea. Un incremento de 1.5 a 3 veces en TDS y en concentraciones de iones mayores en agua subterránea explotada ha sido ocasionado por bombeo fuerte. Las fuentes principales de carga disuelta en el agua subterránea Cámbrico-Vendiano son la lixiviación de la roca encajonante y los procesos geoquímicos que ocurren en la zona saturada. Basamento cristalino subyacente, que aloja agua subterránea salada en la parte superior intemperizada y fisurada, y está conectado hidráulicamente con el sistema acuífero Cámbrico-Vendiano sobreyacente, es la segunda fuente importante de iones. El basamento fracturado y su corteza de intemperismo arcillosa alojan agua subterránea de tipo Ca-Cl la cual se caracteriza por valores altos de TDS (2-20 g/l). Debido a extracción intensiva se ha acelerado el intercambio de agua subterránea y se ha incrementado el área de influencia del bombeo. Los estudios químicos e isotópicos de agua subterránea indican una co

  12. UNIVERSIDAD POLITCNICA DE MADRID Facultad de Informtica

    E-print Network

    Fernandez, Thomas

    ellos. En el caso de esta tesis, se utilizará PRODIGY4.0 como planificador base y HAMLET como método de de otros sistemas de aprendizaje (éste es realmente el sistema multi-estrategia EVOCK-HAMLET). En

  13. A seleo dos candidatos ser feita atravs de: i. Prova de Conhecimentos Gerais sobre Mudanas Ambientais Globais (Eliminatrio)

    E-print Network

    no Sistema Terrestre 3) Modelagem no Sistema Terrestre Obs.: A linha de pesquisa de cada Docente pode ser deve ser apresentado de maneira clara e resumida, ocupando no máximo 20 páginas digitadas em espaço

  14. SECCIN DE COMUNICACIONES Personal acadmico y temas de investigacin

    E-print Network

    sistemas de telecomunicaciones. Sistema funcional de redes de telecomuni- caciones. Metodologías modernas investigación: Procesamiento de señales, redes ad-hoc móviles, detección multiusuario, igualación y estimación local inalámbrica; propaga- ción y antenas para redes inalámbricas; técnicas de acceso múltiple; mecanis

  15. SECCIN DE COMUNICACIONES Personal acadmico y temas de investigacin

    E-print Network

    sistemas de telecomunicaciones. Sistema funcional de redes de telecomuni- caciones. Metodologías modernas. Temas de investigación: Redes de computadoras, interconexión de redes y protocolos para comunicación de. Doctor en Ciencias (1984) Instituto de Telecomunicaciones de Moscú, Rusia. Temas de investigación

  16. Investigacin Centro de Investigacin y de Estudios Avanzados del Instituto Politcnico Nacional

    E-print Network

    controlabilidad, observabilidad, estabilidad, diagnostico. Principalmente uso redes de petri y lenguajes. Sistemas Montiel Diseño de dispositivos ASICs y sistemas electrónicos para telecomunicaciones, cómputo y equipo de grandes redes eléctricas. Luis Ernesto López Mellado Modelado, simulación y automatización de

  17. UNIDAD GUADALAJARA La Unidad Guadalajara del Cinvestav se inici el 14 de noviembre de 1988 con

    E-print Network

    sistemas diseñados en esta Unidad se encuentran funcionando principalmente en las redes telefónicas de, control automático, diseño electrónico, sistemas eléctricos de potencia y telecomunicaciones. En 1995 la datos de alta velocidad; diseño de circuitos integrados para telecomunicaciones. luis

  18. On-Site Wastewater Treatment Systems: Trickling Filter (Spanish) 

    E-print Network

    Lesikar, Bruce J.; Enciso, Juan

    2002-04-18

    por Agricultural Communications, el Sistema Universitario Texas A&M Toda la serie de publicaciones, ?Sistemas individuales para el tratamiento de aguas negras,? puede obtenerse gratis de la World Wide Web en: http://texaserc.tamu.edu Los programas...

  19. Reconocimiento automtico de locutores independiente de texto

    E-print Network

    Autonoma de Madrid, Universidad

    Sistemas automáticos de reconocimiento de locutor independiente de texto Arquitectura básica Funcionamiento locutor independiente de texto Arquitectura básica Funcionamiento de sistemas basados en información evidencia utilizando reconocimiento automático Metodología LR Arquitectura: transformación de score a LR

  20. Thanks to 70 years of Inter American Statistical cooperation, the world’s largest integrated census microdata dissemination site www.ipums.org/international

    PubMed Central

    McCAA, ROBERT

    2014-01-01

    Seventy years of Inter American Statistical cooperation, symbolized by the 70th anniversary of Estadística, made possible the construction of IPUMS-International, the world’s largest integrated census microdata dissemination site, www.ipums.org/international. Currently, the site offers access to 238 samples totaling over 540 million person records representing 74 countries. The Americas, which account for only about one-seventh of the world’s population, amount to over one-third (36%) of the person records in the IPUMS-International database. Likewise, 35% of the citations in the IPUMS-International bibliography are for studies focused on Latin America, with about half of these analyzing a single Latin American country. This article discusses salient features of the IPUMS integration methods and system. National Statistical Institutes that have not yet entrusted 2010 census microdata to the initiative are invited to do so. Researchers and teachers are invited to use the data freely in analysis and teaching. Setenta años de cooperación estadística inter-Americana, simbolizada por el 70 aniversario de la revista Estadística, han hecho posible la construcción de IPUMS-internacional, la base en línea de microdatos censales harmonizados más grande del mundo, www.ipums.org/international. Actualmente, IPUMS proporciona acceso a 238 muestras con más de 540 millones de registros individuales de 74 países. Las Américas, que albergan una séptima parte de la población mundial, representan más de un tercio (36%) de todos los registros individuales en la base de datos IPUMS-internacional. Asimismo, el 35% de todas las referencias en la bibliografía de IPUMS son de estudios realizados sobre América Latina, la mitad de éstas basadas en un sólo país de la región. Este artículo presenta las principales características del sistema de integración y difusión de datos de IPUMS. Los Institutos Nacionales de Estadísticas que todavía no ha entregado la muestra de microdatos de la ronda de 2010 son invitados a hacerlo. Los investigadores y profesores son invitados a utilizar los datos de forma gratuita para sus actividades de investigación y docencia. PMID:26028691

  1. SECCIN DE PROYECTOS DE INGENIERA

    E-print Network

    comunicaciones electromagnéticas. Diseño de sistemas de telecomunicaciones. Sistema funcional de redes de tele Díaz. #12;386/ CINVESTAV 2 Proyecto: Sistema global de telecomunicaciones e informática. Este proyecto las redes hidráuli- cas. Investigador responsable: Ing. Jorge Suárez Díaz. Solicitante: Gobierno del

  2. y' Istituto Nazionale ^SBSB>^ di Fisica Nucleare

    E-print Network

    Roma "La Sapienza", Università di

    STORAGE DISCO DI ALMENO 8000 TERABYTE NETTI E RELATIVA MANUTENZIONE 1. INTRODUZIONE Si richiede la connessione sui server e sul sistema disco. In alternativa al sistema SAN FC è possibile Fornire un server e sul sistema disco. Sono da intendersi inclusi nella fornitura i seguenti servizi accessori

  3. Plataformas de soporte computacional: Programacion con OpenMP (rev. 1.1)

    E-print Network

    Llanos, Diego R.

    algoritmo secuencial 1 2. Medici´on del tiempo 2 3. Opciones del compilador 3 4. Nuestra arquitectura paralelizaci´on OpenMP. Eleva el nivel de optimizaci´on a -O3. 4. Arquitectura de nuestro sistema paralelo Arquitectura de nuestro sistema paralelo Dos sistemas: · Frontend: nodoyuna, 2 n´ucleos, arquitectura Intel

  4. Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae)

    SciTech Connect

    Segura, D.; Petit-Marty, N.; Cladera, J.; Sciurano, R.; Calcagno, G.; Gomez Cendra, P.; Vilardi, J.; Vera, T.; Allinghi, A.

    2007-03-15

    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 sistema 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 principales 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 sistema 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)

  5. Medicinal ethnobotany in Huacareta (Chuquisaca, Bolivia)

    PubMed Central

    2012-01-01

    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 principales 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 sistema 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 sistema respiratorio, son mayormente tratadas en el Hospital. Observando los datos del libro de consultas del Hospital, se puede inferir que los desórdenes gastrointestinales

  6. Geostatistical mapping of leakance in a regional aquitard, Oak Ridges Moraine area, Ontario, Canada

    NASA Astrophysics Data System (ADS)

    Desbarats, A. J.; Hinton, M. J.; Logan, C. E.; Sharpe, D. R.

    2001-01-01

    The Newmarket Till forms a regionally extensive aquitard separating two major aquifer systems in the Greater Toronto area, Canada. The till is incised, and sometimes eroded entirely, by a network of sand- and gravel-filled channels forming productive aquifers and, locally, high-conductivity windows between aquifer systems. Leakage through the till may also be substantial in places. This study investigates the spatial variability of aquitard leakance in order to assess the relative importance of recharge processes to the lower aquifers. With a large database derived from water-well records and containing both hard and soft information, the Sequential Indicator Simulation method is used to generate maps of aquitard thickness and window probability. These can be used for targeting channel aquifers and for identifying potential areas of recharge to the lower aquifers. Conductivities are modeled from sparse data assuming that their correlation range is much smaller than the grid spacing. Block-scale leakances are obtained by upscaling nodal values based on simulated conductivity and thickness fields. Under the "aquifer-flow'' assumption, upscaling is performed by arithmetic spatial averaging. Histograms and maps of upscaled leakances show that heterogeneities associated with aquitard windows have the largest effect on regional groundwater flow patterns. Résumé. La moraine glaciaire de Newmarket constitue un imperméable d'extension régionale séparant deux systèmes aquifères dans la région du Grand Toronto (Canada). La moraine est entaillée, et parfois entièrement érodée, par un réseau de chenaux comblés de sables et de graviers formant des aquifères productifs et, localement, des «fenêtres», zones à forte conductivité hydraulique reliant les systèmes aquifères. Une drainance au travers de la moraine peut également être significative par endroits. Cette étude s'intéresse à la variabilité spatiale de la drainance au travers de l'imperméable, dans le but d'évaluer l'importance relative des processus d'alimentation des aquifères inférieurs. À partir d'une vaste base de données constituée par les mesures faites dans les puits et contenant des informations à la fois certaines et incertaines, la méthode de simulation par indicateur séquentiel est utilisée pour créer des cartes d'épaisseur de l'imperméable et de probabilité d'existence des fenêtres. Ces cartes peuvent être utilisées pour mettre en évidence les aquifères de chenaux et pour identifier les zones potentielles de recharge des aquifères inférieurs. Les conductivités hydrauliques sont modélisées à partir de données clairsemées en supposant que leur gamme de corrélation est beaucoup plus faible que le pas de la grille. La drainance à l'échelle des blocs est obtenue par accroissement du niveau d'échelle des valeurs nodales basé sur les champs de conductivité simulée et des épaisseurs. À partir de l'hypothèse d'écoulement dans l'aquifère, l'accroissement d'échelle est réalisé en faisant une moyenne arithmétique spatiale. Des histogrammes et des cartes de drainance avec accroissement d'échelle montrent que les hétérogénéités associées aux fenêtres dans l'imperméable constituent l'effet le plus important dans l'organisation des écoulements souterrains régionaux. Resumen. El Till de Newmarket forma un acuitardo de extensión regional que separa dos sistemas acuíferos principales en la zona de Greater Toronto (Canadá). El till está horadado, y a veces completamente erosionado, por una red de canales rellenos de arena y grava. Estos constituyen acuíferos productivos y, localmente, conexiones de alta permeabilidad entre sistemas acuíferos. El goteo a través del till puede ser fundamental en ciertos lugares. Este estudio investiga la variabilidad espacial del goteo desde el acuitardo con el fin de establecer la importancia relativa de los procesos de recarga hacia los acuíferos inferiores. Se ha utilizado el método de la Simulación Indicadora Secuencial, soportado por una gran base de dato

  7. 18 (3): 304-316 (2011) Milne Fiord epishelf lake:A coastal Arctic ecosystem

    E-print Network

    Vincent, Warwick F.

    2011-01-01

    , prasinophytes prevailed in the halocline, and the bottom layer harboured mainly fucoxanthin-containing groups'halocline et la couche de fond hébergeait principalement des groupes contenant de la fucoxanthine. Les banques

  8. COMMUNIQU DE PRESSE. mardi 10 mai 2011

    E-print Network

    Bordenave, Charles

    . C'est une organisation de services pour le compte de ses clients, principalement industriels. C engagement public-privé de 842 M sur les 10 prochaines années. L'IRT s'appuie sur un important investissement

  9. Atlas del Genoma del Cáncer: Antecedentes

    Cancer.gov

    El Atlas del Genoma del Cáncer es una iniciativa de los Institutos Nacionales de la Salud (NIH) para crear mapas multidimensionales completos de los cambios genómicos clave en los tipos y subtipos principales de cáncer.

  10. 6 avril 2015 Volume 31, Numro 26

    E-print Network

    Vellend, Mark

    dans le camp du P'tit bonheur, au lac Supérieur. En plus de celui-ci, il sera possible de participer à minutes de travail pour vous assurer une meilleure concentration. Relevez les idées principales et

  11. Investigacin Instituto Nacional de Ecologa-SEMARNAT Volumen 4 Nmero 2

    E-print Network

    Rey Benayas, José María

    ; recuadro 1). Así, Ellis y Ramankutty (2008), en su clasificación antropogénica de los biomas #12;Investigaciónambiental2012·4(1):101-110 102 José M. Rey Benayas del mundo, distinguen 21 tipos principales de biomas de

  12. Predation rates, timing, and predator composition for Scoters (Melanitta spp.) in marine habitats

    E-print Network

    sud-est de l'Alaska, les émetteurs ont été récupérés principalement près des aires d'alimentation des des aires d'alimentation des pygargues à tête blanche (Haliaee- tus leucocephalus (L., 1766)). Il est

  13. Descripcin de las cuencas mediterrneas seleccionadas en el proyecto GUADALMED.

    E-print Network

    Bonada, Núria

    que los ecosistemas fluviales sufran un marcado contraste entre la época más húmeda (coinci- dente con, son otros de los principales impactos que afectan a los ecosistemas fluviales estudiados. Palabras

  14. A N U A R I O C I N V E S T A V780 DEPARTAMENTO DE ECOLOGA HUMANA

    E-print Network

    investigaciones del Departamento se orientan hacia dos áreas principales: Uso social de los ecosistemas, que ecosistemas. Categoría en el SNI: Nivel I batllori@mda.cinvestav.mx ERIC JOHN CASTAÑARES MADDOX Investigador

  15. Modifi le 09/03/2015 1 SUJET DE THESE

    E-print Network

    Greff, Isabelle

    'architecture de Système de systèmes Smart Energy RESUME : Les réseaux électriques nouveaux réseaux électriques (Smart Energy). L'idée principale est de pouvoir définir multiplication des producteurs d'énergie renouvelable, de petite taille, comme par exemple

  16. Critical role of phospholipase A2 group IID in age-related susceptibility to severe acute respiratory syndrome-CoV infection.

    PubMed

    Vijay, Rahul; Hua, Xiaoyang; Meyerholz, David K; Miki, Yoshimi; Yamamoto, Kei; Gelb, Michael; Murakami, Makoto; Perlman, Stanley

    2015-10-19

    Oxidative stress and chronic low-grade inflammation in the lungs are associated with aging and may contribute to age-related immune dysfunction. To maintain lung homeostasis, chronic inflammation is countered by enhanced expression of proresolving/antiinflammatory factors. Here, we show that age-dependent increases of one such factor in the lungs, a phospholipase A2 (PLA2) group IID (PLA2G2D) with antiinflammatory properties, contributed to worse outcomes in mice infected with severe acute respiratory syndrome-coronavirus (SARS-CoV). Strikingly, infection of mice lacking PLA2G2D expression (Pla2g2d(-/-) mice) converted a uniformly lethal infection to a nonlethal one (>80% survival), subsequent to development of enhanced respiratory DC migration to the draining lymph nodes, augmented antivirus T cell responses, and diminished lung damage. We also observed similar effects in influenza A virus-infected middle-aged Pla2g2d(-/-) mice. Furthermore, oxidative stress, probably via lipid peroxidation, was found to induce PLA2G2D expression in mice and in human monocyte-derived macrophages. Thus, our results suggest that directed inhibition of a single inducible phospholipase, PLA2G2D, in the lungs of older patients with severe respiratory infections is potentially an attractive therapeutic intervention to restore immune function. PMID:26392224

  17. Molecular cloning, recombinant expression, and antimicrobial activity of EC-hepcidin3, a new four-cysteine hepcidin isoform from Epinephelus coioides.

    PubMed

    Qu, HaiDong; Chen, Bei; Peng, Hui; Wang, KeJian

    2013-01-01

    Hepcidin, a cysteine-rich antimicrobial peptide, is widespread in fish and shows multiple activities, including antimicrobial, antivirus, and antitumor. Here, a new four-cysteine hepcidin isoform gene, EC-hepcidin3, was cloned from the marine-cultured orange-spotted grouper (Epinephelus coioides). The complete cDNA sequence consisted of 603 bases with an open reading frame (ORF) of 270 bases. The genomic DNA sequence was composed of two introns and three exons, and its 312-bp upstream region had multiple putative transcription factor binding sites. Soluble recombinant protein EC-proHep3 containing a His-tag at the C-terminus was obtained from expression plasmid pET-28a/EC-proHep3 in Escherichia coli Rosetta. It was purified by immobilized metal affinity chromatography (IMAC), and it showed antibacterial activity in vitro. Kinetic studies indicated that recombinant EC-proHep3 has strong, rapid activity against Staphylococcus aureus and Pseudomonas stutzeri. The results indicate that EC-hepcidin3 might be an effective component in the innate immune system of groupers. PMID:23291752

  18. Silver nanoparticles in combination with acetic acid and zinc oxide quantum dots for antibacterial activities improvement-A comparative study

    NASA Astrophysics Data System (ADS)

    Sedira, Sofiane; Ayachi, Ahmed Abdelhakim; Lakehal, Sihem; Fateh, Merouane; Achour, Slimane

    2014-08-01

    Due to their remarkable antibacterial/antivirus properties, silver nanoparticles (Ag NPs) and zinc oxide quantum dots (ZnO Qds) have been widely used in the antimicrobial field. The mechanism of action of Ag NPs on bacteria was recently studied and it has been proven that Ag NPs exerts their antibacterial activities mainly by the released Ag+. In this work, Ag NPs and ZnO Qds were synthesized using polyol and hydrothermal method, respectively. It was demonstrated that Ag NPs can be oxidized easily in aqueous solution and the addition of acetic acid can increase the Ag+ release which improves the antibacterial activity of Ag NPs. A comparative study between bactericidal effect of Ag NPs/acetic acid and Ag NPs/ZnO Qds on Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumonia and Staphylococcus aureus was undertaken using agar diffusion method. The obtained colloids were characterized using UV-vis spectroscopy, Raman spectrometry, X-ray diffraction (XRD), transmission electron microscopy (TEM) and atomic force microscopy (AFM).

  19. Herbal Mouthwash Containing Extracts of Baccharis dracunculifolia as Agent for the Control of Biofilm: Clinical Evaluation in Humans

    PubMed Central

    Leite, Mateus Freire; Tavares, Reisla Cristina; Sato, Sandra; do Nascimento, Glauce Crivelaro; Issa, João Paulo Mardegan

    2015-01-01

    Baccharis dracunculifolia DC (Asteraceae), popularly known as “alecrim-do-campo,” is largely distributed in South America, is shown to exhibit protective actions against gastric ulcers, has anti-inflammatory properties, and is hepatoprotective. Several essential oils obtained from Baccharis species possess biological activities, such as antimicrobial and antivirus activities. This randomized controlled trial evaluated the efficacy of B. dracunculifolia in the reduction of dental biofilm, comparing this natural product with other mouthwashes already known in the dental market. In measuring the time after use of mouthwash (t = 1), there was no difference between products (P = 0.602); that is, subjects in the study had a similar PI after the first use. After one week (t = 2), there was no difference between the four products evaluated (P = 0.674), so, all research individuals completed the study with a similar reduction in dental biofilm between themselves but it was different from initial state (Friedman test). It is possible to conclude that B. dracunculifolia had the same efficiency of the materials used to oral hygiene in reduction of dental plaque and, consequently, prevention of dental caries. Thus, we can consider B. dracunculifolia as a good candidate for new material to be implemented in dental care. PMID:25874255

  20. ARDS associated with pneumonia caused by avian influenza A H7N9 virus treated with extracorporeal membrane oxygenation.

    PubMed

    Tang, Xiao; He, Hangyong; Sun, Bing; Wan, Jun; Ban, Chengjun; Zhang, Chunyan; Wang, Shuqin; Xia, Jingen; Li, Jie; Liu, Yingmei; Cao, Bin; Tong, Zhaohui

    2015-07-01

    This is a sporadic H7N9 avian influenza case that was the first severe imported case in Beijing and the first case of Hebei province in China. A 61-year-old female who had rapidly progressive pneumonia with respiratory distress and bilateral exduation and consolidation changes on chest X-ray and computerized tomography (CT) scan that did not respond to ordinary antibiotics was diagnosed with influenza A (H7N9) infection in our hospital on July 19, 2013. Intravenous peramivir, veno-venous extracorporeal membrane oxygenation (VV-ECMO) and continuous veno-venous hemofiltration were given on the same day of lab diagnosis because of severe acute respiratory distress syndrome and acute renal failure. With antimicrobial therapy and other supportive treatment, clinical symptoms and oxygenation of the patient improved gradually. VV-ECMO was successfully removed on the 13th day. The testing for influenza A (H7N9) turned negative on day 16 since the antivirus therapy. Twenty-three?days after hospitalization, blood stream infection with multidrug-resistant Acinetobacter Baumannii occurred, which lead to septic shock and death. Whether or not the influenza season in north China, the influenza screening should be carried out as a conventional test for the patients who are suspected of viral pneumonia. For the patients who need mechanical ventilation and ECMO support, the lung protective strategy under the guidance of transpulmonary pressure may be helpful for recovering the lung. PMID:24725670

  1. A Drosophila ABC transporter regulates lifespan.

    PubMed

    Huang, He; Lu-Bo, Ying; Haddad, Gabriel G

    2014-12-01

    MRP4 (multidrug resistance-associated protein 4) is a member of the MRP/ABCC subfamily of ATP-binding cassette (ABC) transporters that are essential for many cellular processes requiring the transport of substrates across cell membranes. Although MRP4 has been implicated as a detoxification protein by transport of structurally diverse endogenous and xenobiotic compounds, including antivirus and anticancer drugs, that usually induce oxidative stress in cells, its in vivo biological function remains unknown. In this study, we investigate the biological functions of a Drosophila homolog of human MRP4, dMRP4. We show that dMRP4 expression is elevated in response to oxidative stress (paraquat, hydrogen peroxide and hyperoxia) in Drosophila. Flies lacking dMRP4 have a shortened lifespan under both oxidative and normal conditions. Overexpression of dMRP4, on the other hand, is sufficient to increase oxidative stress resistance and extend lifespan. By genetic manipulations, we demonstrate that dMRP4 is required for JNK (c-Jun NH2-terminal kinase) activation during paraquat challenge and for basal transcription of some JNK target genes under normal condition. We show that impaired JNK signaling is an important cause for major defects associated with dMRP4 mutations, suggesting that dMRP4 regulates lifespan by modulating the expression of a set of genes related to both oxidative resistance and aging, at least in part, through JNK signaling. PMID:25474322

  2. Ginseng Berry Extract Promotes Maturation of Mouse Dendritic Cells

    PubMed Central

    Zhang, Wei; Cho, Si-Young; Xiang, Gao; Min, Kyung-Jin; Yu, Qing; Jin, Jun-O

    2015-01-01

    Ginseng extract has been shown to possess certain anti-virus, anti-tumor and immune-activating effects. However, the immunostimulatory effect of ginseng berry extract (GB) has been less well characterized. In this study, we investigated the effect of GB on the activation of mouse dendritic cells (DCs) in vitro and in vivo. GB treatment induced up-regulation of co-stimulatory molecules in bone marrow-derived DCs (BMDCs). Interestingly, GB induced a higher degree of co-stimulatory molecule up-regulation than ginseng root extract (GR) at the same concentrations. Moreover, in vivo administration of GB promoted up-regulation of CD86, MHC class I and MHC class II and production of IL-6, IL-12 and TNF-? in spleen DCs. GB also promoted the generation of Th1 and Tc1 cells. Furthermore, Toll like receptor 4 (TLR4) and myeloid differentiation primary response 88 (MyD88) signaling pathway were essential for DC activation induced by GB. In addition, GB strongly prompted the proliferation of ovalbumin (OVA)-specific CD4 and CD8 T cells. Finally, GB induced DC activation in tumor-bearing mice and the combination of OVA and GB treatment inhibited B16-OVA tumor cell growth in C57BL/6 mice. These results demonstrate that GB is a novel tumor therapeutic vaccine adjuvant by promoting DC and T cell activation. PMID:26090808

  3. Angel of human health: current research updates in toad medicine

    PubMed Central

    Yang, Qian; Zhou, Xuanxuan; Zhang, Meng; Bi, Linlin; Miao, Shan; Cao, Wei; Xie, Yanhua; Sun, Jiyuan; Tang, Haifeng; Li, Ying; Miao, Qing; Wang, Siwang

    2015-01-01

    There are currently 34 genera and 410 species of toads in the world. The medicinal parts of toads mainly include their venom, skin, and clothing. The toad’s venom and skin possess the same chemical components, mainly the toad venom lactone class, and their pharmacological effects primarily include the maintenance of strong heart, antitumor, antivirus, anti-infection, and analgesic effects. So far, the produces from the medicinal raw materials of the toad are widely used clinically around the world, especially in China, Japan, and South Korea. About 50 varieties of medicines are used in the clinical treatment of various complicated diseases in China, such as “Liushen pills” which was popular in the whole world. Toads are mainly used in treating malignant tumors (e.g., liver cancer, gastric cancer, esophageal cancer, colon cancer, cervical cancer, among others), and some major diseases such as hepatitis B. Despite the therapeutic effects of toad-derived medicines on human health, there is insufficient research and development of toad-derived medicines by leading drug companies. In order to harness the beneficial effects of the resources of the toad species, it is the responsibility of global pharmaceutical researchers to develop and generate economically feasible toad-derived therapeutic products, while promoting maximum protection to the resources of the toad species. PMID:25755824

  4. A dual character of flavonoids in influenza A virus replication and spread through modulating cell-autonomous immunity by MAPK signaling pathways.

    PubMed

    Dong, Wenjuan; Wei, Xiuli; Zhang, Fayun; Hao, Junfeng; Huang, Feng; Zhang, Chunling; Liang, Wei

    2014-01-01

    Flavonoids are well known as a large class of polyphenolic compounds, which have a variety of physiological activities, including anti-influenza virus activity. The influenza A/WSN/33 infected A549 cells have been used to screen anti-influenza virus drugs from natural flavonoid compounds library. Unexpectedly, some flavonoid compounds significantly inhibited virus replication, while the others dramatically promoted virus replication. In this study, we attempted to understand these differences between flavonoid compounds in their antivirus mechanisms. Hesperidin and kaempferol were chosen as representatives of both sides, each of which exhibited the opposite effects on influenza virus replication. Our investigation revealed that the opposite effects produced by hesperidin and kaempferol on influenza virus were due to inducing the opposite cell-autonomous immune responses by selectively modulating MAP kinase pathways: hesperidin up-regulated P38 and JNK expression and activation, thus resulting in the enhanced cell-autonomous immunity; while kaempferol dramatically down-regulated p38 and JNK expression and activation, thereby suppressing cell-autonomous immunity. In addition, hesperidin restricted RNPs export from nucleus by down-regulating ERK activation, but kaempferol promoted RNPs export by up-regulating ERK activation. Our findings demonstrate that a new generation of anti-influenza virus drugs could be developed based on selective modulation of MAP kinase pathways to stimulate cell-autonomous immunity. PMID:25429875

  5. DROP: Detecting Return-Oriented Programming Malicious Code

    NASA Astrophysics Data System (ADS)

    Chen, Ping; Xiao, Hai; Shen, Xiaobin; Yin, Xinchun; Mao, Bing; Xie, Li

    Return-Oriented Programming (ROP) is a new technique that helps the attacker construct malicious code mounted on x86/SPARC executables without any function call at all. Such technique makes the ROP malicious code contain no instruction, which is different from existing attacks. Moreover, it hides the malicious code in benign code. Thus, it circumvents the approaches that prevent control flow diversion outside legitimate regions (such as W ? X ) and most malicious code scanning techniques (such as anti-virus scanners). However, ROP has its own intrinsic feature which is different from normal program design: (1) uses short instruction sequence ending in "ret", which is called gadget, and (2) executes the gadgets contiguously in specific memory space, such as standard GNU libc. Based on the features of the ROP malicious code, in this paper, we present a tool DROP, which is focused on dynamically detecting ROP malicious code. Preliminary experimental results show that DROP can efficiently detect ROP malicious code, and have no false positives and negatives.

  6. Generation of memory T cells for adoptive transfer using clinical-grade anti-CD62L magnetic beads.

    PubMed

    Verfuerth, S; Sousa, P S E; Beloki, L; Murray, M; Peters, M D; Mackinnon, S; Lowdell, M W; Chakraverty, R; Samuel, E R

    2015-10-01

    Pre-clinical studies of allogeneic stem cell transplantation suggest that depletion of naive T cells from donor lymphocytes will reduce the risk of GvHD but preserve immunity to infectious pathogens. In this study, we have established a clinical-grade protocol under good manufacturing practice conditions for purging CD62L(+) naive T cells from steady-state leukapheresis products using the CliniMACS system. The efficacy of immunomagnetic CD62L depletion was assessed by analysis of cell composition and functional immune responses. A median 2.9 log CD62L depletion was achieved with no evidence of CD62L shedding during the procedure and a mean T-cell yield of 47%. CD62L(-) cells comprised an equal mix of CD4(+) and CD8(+) T cells, with elimination of B cells but maintenance of regulatory T cells and natural killer cell populations. CD62L-depleted T cells were predominantly CD45RA(-) and CD45RA(+) effector memory (>90%) and contained the bulk of pentamer-staining antivirus-specific T cells. Functional assessment of CD62L(-) cells revealed the maintenance of antiviral T-cell reactivity and a reduction in the alloreactive immune response compared with unmanipulated cells. Clinical-grade depletion of naive T cells using immunomagnetic CD62L beads from steady-state leukapheresis products is highly efficient and generates cells suitable for adoptive transfer in the context of clinical trials. PMID:26076125

  7. Antiviral activity of Rheum palmatum methanol extract and chrysophanol against Japanese encephalitis virus.

    PubMed

    Chang, Shu-Jen; Huang, Su-Hua; Lin, Ying-Ju; Tsou, Yi-Yun; Lin, Cheng-Wen

    2014-01-01

    Rheum palmatum, Chinese traditional herb, exhibits a great variety of anti-cancer and anti-viruses properties. This study rates antiviral activity of R. palmatum extracts and its components against Japanese encephalitis virus (JEV) in vitro. Methanol extract of R. palmatum contained higher levels of aloe emodin, chrysophanol, rhein, emodin and physcion than water extract. Methanol extract (IC?? = 15.04 ?g/ml) exhibited more potent inhibitory effects on JEV plaque reduction than water extract (IC?? = 51.41 ?g/ml). Meanwhile, IC?? values determined by plaque reduction assay were 15.82 ?g/ml for chrysophanol and 17.39 ?g/ml for aloe-emodin, respectively. Virucidal activity of agents correlated with anti-JEV activity, while virucidal IC?? values were 7.58 ?g/ml for methanol extract, 17.36 ?g/ml for water extract, 0.75 ?g/ml for chrysophanol and 0.46 ?g/ml for aloe-emodin, respectively. In addition, 10 ?g/ml of extract, chrysophanol or aloe emodin caused 90 % inhibition of JEV yields in cells and significantly activated gamma activated sequence-driven promoters. Hence, methanol extract of R. palmatum and chrysophanol with high therapeutic index might be useful for development of antiviral agents against JEV. PMID:24395532

  8. A Novel Method for Simultaneous Production of Two Ribosome-Inactivating Proteins, ?-MMC and MAP30, from Momordica charantia L

    PubMed Central

    Liu, Shuangfeng; Fan, Xiang; Li, Gangrui; Meng, Yanfa

    2014-01-01

    Alpha-momorcharin (?-MMC) and momordica anti-HIV protein (MAP30) from Momordica charantia L. have been confirmed to possess anti-tumor and anti-virus 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

  9. Biological properties of garlic and garlic-derived organosulfur compounds.

    PubMed

    Iciek, Ma?gorzata; Kwiecie?, Inga; W?odek, Lidia

    2009-04-01

    Medicinal properties of garlic (Allium sativum) have been widely known and used since ancient times till the present. Garlic enhances immune functions and has antibacterial, antifungal and antivirus activities. It is known to prevent platelet aggregation, and to have hypotensive and cholesterol- and triglyceride-lowering properties, although the latter features have been questioned. This review is focused on anticancer efficacy of Allium sativum, and attempts to explain the mechanisms of this action. Medicinal properties of garlic rely upon organosulfur compounds mostly derived from alliin. Organosulfur compounds originating from garlic inhibit carcinogen activation, boost phase 2 detoxifying processes, cause cell cycle arrest mostly in G2/M phase, stimulate the mitochondrial apoptotic pathway, increase acetylation of histones. Garlic-derived sulfur compounds influence also gap-junctional intercellular communication and participate in the development of multidrug resistance. This review presents also other little known aspects of molecular action of garlic-derived compounds, like modulation of cellular redox state, involvement in signal transduction and post-translational modification of proteins by sulfane sulfur or by formation of mixed disulfides (S-thiolation reactions). PMID:19253339

  10. Effects of Nidus Vespae extract and chemical fractions on the growth and acidogenicity of oral microorganisms.

    PubMed

    Xiao, Jin; Liu, Yuan; Zuo, Yu Ling; Li, Ji Yao; Ye, Ling; Zhou, Xue Dong

    2006-09-01

    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, anti-virus, 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

  11. A dual character of flavonoids in influenza A virus replication and spread through modulating cell-autonomous immunity by MAPK signaling pathways

    PubMed Central

    Dong, Wenjuan; Wei, Xiuli; Zhang, Fayun; Hao, Junfeng; Huang, Feng; Zhang, Chunling; Liang, Wei

    2014-01-01

    Flavonoids are well known as a large class of polyphenolic compounds, which have a variety of physiological activities, including anti-influenza virus activity. The influenza A/WSN/33 infected A549 cells have been used to screen anti-influenza virus drugs from natural flavonoid compounds library. Unexpectedly, some flavonoid compounds significantly inhibited virus replication, while the others dramatically promoted virus replication. In this study, we attempted to understand these differences between flavonoid compounds in their antivirus mechanisms. Hesperidin and kaempferol were chosen as representatives of both sides, each of which exhibited the opposite effects on influenza virus replication. Our investigation revealed that the opposite effects produced by hesperidin and kaempferol on influenza virus were due to inducing the opposite cell-autonomous immune responses by selectively modulating MAP kinase pathways: hesperidin up-regulated P38 and JNK expression and activation, thus resulting in the enhanced cell-autonomous immunity; while kaempferol dramatically down-regulated p38 and JNK expression and activation, thereby suppressing cell-autonomous immunity. In addition, hesperidin restricted RNPs export from nucleus by down-regulating ERK activation, but kaempferol promoted RNPs export by up-regulating ERK activation. Our findings demonstrate that a new generation of anti-influenza virus drugs could be developed based on selective modulation of MAP kinase pathways to stimulate cell-autonomous immunity. PMID:25429875

  12. Attenuation of Histone Methyltransferase KRYPTONITE-mediated transcriptional gene silencing by Geminivirus

    PubMed Central

    Sun, Yan-Wei; Tee, Chuan-Sia; Ma, Yong-Huan; Wang, Gang; Yao, Xiang-Mei; Ye, Jian

    2015-01-01

    Although histone H3K9 methylation has been intensively studied in animals and a model plant Arabidopsis thaliana, little is known about the evolution of the histone methyltransferase and its roles in plant biotic stress response. Here we identified a Nicotiana benthamiana homolog of H3K9 histone methyltransferase KRYPTONITE (NbKYP) and demonstrated its fundamental roles on methylation of plant and virus, beside of leading to the suppression of endogenous gene expression and virus replication. NbKYP and another gene encoding DNA methyltransferase CHROMOMETHYLTRANSFERASE 3 (NbCMT3-1) were further identified as the key components of maintenance of transcriptional gene silencing, a DNA methylation involved anti-virus machinery. All three types of DNA methylations (asymmetric CHH and symmetric CHG/CG) were severely affected in NbKYP-silenced plants, but only severe reduction of CHG methylation found in NbCMT3-1-silenced plants. Attesting to the importance of plant histone H3K9 methylation immunity to virus, the virulence of geminiviruses requires virus-encoded trans-activator AC2 which inhibits the expression of KYP via activation of an EAR-motif-containing transcription repressor RAV2 (RELATED TO ABI3 and VP1). The reduction of KYP was correlated with virulence of various similar geminiviruses. These findings provide a novel mechanism of how virus trans-activates a plant endogenous anti-silencing machinery to gain high virulence. PMID:26602265

  13. Quality control of tuirejieduling granules using high-performance liquid chromatography fingerprint method and simultaneous determination of four main active ingredients

    PubMed Central

    Yang, Aixia; Wang, Xiaoxian; Xiong, Chaomei; Chen, Jing; Ruan, Jinlan

    2013-01-01

    Background: The Tuirejieduling granule is a compound preparation made from four kinds of Chinese medicines. It is effective for anti-inflammation, antivirus, defervescence and anti-bacterium; however, its quality control standards have remained unknown. Objective: To establish a simple and accurate fingerprint method for quality control of the Tuirejieduling granule. Materials and Methods: The methanol extract of the Tuirejieduling granule was used for the fingerprint analysis and the four selected active ingredients (epigoitrin, phillyrin, saikosaponin A and glycyrrhetinic acid) in the extract were determined. The fingerprint method was performed on an Amethyst C18-P chromatography column by gradient elution with acetonitrile and aqueous phase (containing 0.5% H3PO4 (v/v), pH 3.0). Results: Under the optimal chromatographic condition, twenty peaks were chosen as fingerprint peaks of the Tuirejieduling granules extractions. The similarities of 10 batches of Tuirejieduling granule was more than 0.99. This indicates that the different batches of Tuirejieduling granules were under the consistent quality control. Good linear behaviors over the investigated concentration ranges were obtained with the values of R2 higher than 0.99 for four studied active ingredients. The recoveries for spiked samples were in the range of 96.2–105.5%. The developed method was successfully applied to determine the contents of active constituents in different batches of Tuirejieduling granule. Conclusion: The HPLC fingerprint was proved to be a reliable method for the quality control of Tuirejieduling granule. PMID:23772113

  14. Rig-I regulates NF-?B activity through binding to Nf-?b1 3?-UTR mRNA

    PubMed Central

    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

    2013-01-01

    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 antivirus immunity. PMID:23553835

  15. Attenuation of Histone Methyltransferase KRYPTONITE-mediated transcriptional gene silencing by Geminivirus.

    PubMed

    Sun, Yan-Wei; Tee, Chuan-Sia; Ma, Yong-Huan; Wang, Gang; Yao, Xiang-Mei; Ye, Jian

    2015-01-01

    Although histone H3K9 methylation has been intensively studied in animals and a model plant Arabidopsis thaliana, little is known about the evolution of the histone methyltransferase and its roles in plant biotic stress response. Here we identified a Nicotiana benthamiana homolog of H3K9 histone methyltransferase KRYPTONITE (NbKYP) and demonstrated its fundamental roles on methylation of plant and virus, beside of leading to the suppression of endogenous gene expression and virus replication. NbKYP and another gene encoding DNA methyltransferase CHROMOMETHYLTRANSFERASE 3 (NbCMT3-1) were further identified as the key components of maintenance of transcriptional gene silencing, a DNA methylation involved anti-virus machinery. All three types of DNA methylations (asymmetric CHH and symmetric CHG/CG) were severely affected in NbKYP-silenced plants, but only severe reduction of CHG methylation found in NbCMT3-1-silenced plants. Attesting to the importance of plant histone H3K9 methylation immunity to virus, the virulence of geminiviruses requires virus-encoded trans-activator AC2 which inhibits the expression of KYP via activation of an EAR-motif-containing transcription repressor RAV2 (RELATED TO ABI3 and VP1). The reduction of KYP was correlated with virulence of various similar geminiviruses. These findings provide a novel mechanism of how virus trans-activates a plant endogenous anti-silencing machinery to gain high virulence. PMID:26602265

  16. Flaviviruses are neurotropic, but how do they invade the CNS?

    PubMed

    Neal, J W

    2014-09-01

    Flaviruses (FV) are RNA viruses carried by mosquitoes. Neurological signs including acute encephalitis, meningitis and acute flaccid paralysis develop in a small percentage of infected individuals; long term sequlae are, Parkinsonism, dystonias and cognitive changes. FV neuroinfection is neurotropic involving subcortical nuclei (substantia nigra and thalamus) anterior horn neurons and neocortex. Glycosylation of the FV E envelope protein is one determinant of neuroinvasion, increasing both axonal and trans-epithelial transportation. Neutralizing antibodies against the E and NS proteins prevents FV uptake into several cell types, including axons. CD8+ T cells are vital for clearance of WNF infected cells from the CNS, whereas TLR-3 and TLR-7 mediated anti-virus response through increased serum inflammatory cytokines to disrupt the BBB providing infected leucocytes and free virus access to the CNS (so called Trojan horse) Cellular virus attachment factors, promoting FV cell entry are widely distributed and include DC-SIGN (that detects complex carbohydrate molecules); Glycosamino glycans (GAG), Heparan sulphate(HSPG) Semaphorin 7A, Low Density Lipid receptors (LDLR); these are not FV specific virus entry receptors. The FV also crosses epithelial and endothelial barriers by disrupting Tight Junction complexes to increase BBB permeability. This review describes the multiple pathways responsible for the neuroinvasive properties of the Flaviviruses. PMID:24880028

  17. Phishing for suitable targets in the Netherlands: routine activity theory and phishing victimization.

    PubMed

    Leukfeldt, E Rutger

    2014-08-01

    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 antivirus 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

  18. Design, Synthesis and Structure-Activity Relationship Optimization of Lycorine Derivatives for HCV Inhibition

    PubMed Central

    Chen, Duozhi; Cai, Jieyun; Cheng, Junjun; Jing, Chenxu; Yin, Junlin; Jiang, Jiandong; Peng, Zonggen; Hao, Xiaojiang

    2015-01-01

    Lycorine is reported to be a multifunctional compound. We previously showed that lycorine is an HCV inhibitor with strong activity. Further research on the antivirus mechanism indicated that lycorine does not affect the enzymes that are indispensable to HCV replication but suppresses the expression of Hsc70 in the host cell to limit HCV replication. However, due to the cytotoxicity and apoptosis induction of lycorine, lycorine is unsafe to be a anti-HCV agent for clinical application. As a result of increasing interest, its structure was optimized for the first time and a novel series of lycorine derivatives was synthesized, all of which lost their cytotoxicity to different degrees. Structure-activity analysis of these compounds revealed that disubstitution on the free hydroxyl groups at C1 and C2 and/or degradation of the benzodioxole group would markedly reduce the cytotoxicity. Furthermore, an ?, ?-unsaturated ketone would improve the HCV inhibitory activity of lycorine. The C3-C4 double bond is crucial to the anti-HCV activity because hydrogenation of this double bond clearly weakened HCV inhibition. PMID:26443922

  19. Investigating weaknesses in Android certificate security

    NASA Astrophysics Data System (ADS)

    Krych, Daniel E.; Lange-Maney, Stephen; McDaniel, Patrick; Glodek, William

    2015-05-01

    Android's application market relies on secure certificate generation to establish trust between applications and their users; yet, cryptography is often not a priority for application developers and many fail to take the necessary security precautions. Indeed, there is cause for concern: several recent high-profile studies have observed a pervasive lack of entropy on Web-systems leading to the factorization of private keys.1 Sufficient entropy, or randomness, is essential to generate secure key pairs and combat predictable key generation. In this paper, we analyze the security of Android certificates. We investigate the entropy present in 550,000 Android application certificates using the Quasilinear GCD finding algorithm.1 Our results show that while the lack of entropy does not appear to be as ubiquitous in the mobile markets as on Web-systems, there is substantial reuse of certificates only one third of the certificates in our dataset were unique. In other words, we find that organizations frequently reuse certificates for different applications. While such a practice is acceptable under Google's specifications for a single developer, we find that in some cases the same certificates are used for a myriad of developers, potentially compromising Android's intended trust relationships. Further, we observed duplicate certificates being used by both malicious and non-malicious applications. The top 3 repeated certificates present in our dataset accounted for a total of 11,438 separate APKs. Of these applications, 451, or roughly 4%, were identified as malicious by antivirus services.

  20. Dimeric Sesquiterpenoids.

    PubMed

    Liao, Shang-Gao; Yue, Jian-Min

    2016-01-01

    It is widely accepted that a large number of proteins that are responsible for cellular function exist as dimers or need to be activated by dimerization before mediating certain signaling pathways. Simultaneously targeting both monomeric moieties of the dimeric proteins has shown potential in the development of various therapeutic agents. As dimeric molecules might be able to act on both moieties of a dimeric protein, dimeric sesquiterpenoids (DSs), which are generated biogenetically from coupling of two sesquiterpenoid molecules, are in essence potential biologically active molecules, and have attracted in recent years great attention for their peculiar structures and biological activities. In fact, a number of DSs are more potent than their monomeric precursors for some activities such as anti-inflammatory, anti-tumor, immunosuppressive, potassium channel blocking, antimalarial, anti-virus, and neurotrophic activities.The complex and diversified structures of DSs also attracted attention of chemists in their isolation, structural elucidation, and synthetic construction.In the contribution, a general view of the classification and distribution of DSs will be provided. Strategies for the structural elucidation of DSs and their analogues is presented. Chemical strategies for the convergence of the two sesquiterpenoid units is reviewed. Biological activities are discussed under each type of activity. PMID:26659108

  1. Scrophularia buergeriana regulates cytokine production in vitro.

    PubMed

    Kim, Su-Jin; Park, Jeong-Su; Myung, Noh-Yil; Moon, Phil-Dong; Choi, In-Young; An, Hyo-Jin; Kim, Na-Hyung; Na, Ho-Jeong; Kim, Dong-Hyun; Kim, Min-cheol; An, Nyeon-Hyoung; Kim, Il-Kwang; Lee, Joo-Young; Jeong, Hyun-Ja; Um, Jae-Young; Kim, Hyung-Min; Hong, Seung-Heon

    2009-06-01

    The Scrophularia buergeriana (SB) has long been used to treat various diseases an account of its antimicrobial and anti-virus activity. However, it is unclear how SB regulates the immune responses. This study investigated the effect of SB on the production of cytokines in a human T-cell line, MOLT-4 cells, and mouse peritoneal macrophages. The MOLT-4 cells were cultured for 24 h in the presence or absence of SB plus concanavalin (con) A. SB plus con A significantly increased the level of interleukin (IL)-2, IL-4 and interferon (IFN)-gamma production compared with that of con A alone (approximately 1.79-fold for IL-2, 2-fold for IL-4, and 1.85-fold for IFN-gamma, p < 0.05). SB plus recombinant IFN-gamma (rIFN-gamma) increased the level of IL-12 and NO production compared with rIFN-gamma alone. In addition, SB plus rIFN-gamma increased the level the iNOS expression on mouse peritoneal macrophages. Overall, SB may have an immune-enhancement effect through cytokine production. PMID:18821220

  2. Geometria Simpletica 2015, Lista 5 Prof. H. Bursztyn

    E-print Network

    Bursztyn, Henrique

    A : TQ R, A(x, v) := FL(x, v), v , e defina a energia do sistema lagrangiano como E = A - L. Se x(t) ´e-regular. Seja H = E FL-1 , onde E ´e a energia. Mostre que: (a) Se (t) ´e solu¸c~ao do sistema lagrangiano, a energia E, a forma L em TQ, e o campo hamiltoniano associado a E; compare diretamente o sistema

  3. Para Candidatos en Programas de Centros de Cuidado y Educacion Infantil con Bebes y "Toddlers": Asociado en Desarrollo Infantil Sistema de Evaluacion y Normas de Competencia CDA (Infant/Toddler Caregivers in Center-Based Programs: The Child Development Associate Assessment System and Competency Standards).

    ERIC Educational Resources Information Center

    Council for Early Childhood Professional Recognition, Washington, DC.

    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…

  4. Para Candidatos en Programas de Centros de Cuidado y Educacion Infantil con Ninos de Edad Pre-escolar: Asociado en Desarrollo Infantil Sistema de Evaluacion y Normas de Competencia CDA (Preschool Caregivers in Center-Based Programs: The Child Development Associate Assessment System and Competency Standards).

    ERIC Educational Resources Information Center

    Council for Early Childhood Professional Recognition, Washington, DC.

    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.…

  5. DEPARTAMENTO DE RECURSOS DEL MAR

    E-print Network

    investigación: Redes tróficas y funcionamiento trófico en ecosistemas arrecifales. Evaluación de eficiencia de ambiental, análisis espacial de ecosistemas, teledetección y sistemas de información geográfica. euan

  6. DEPARTAMENTO DE RECURSOS DEL MAR

    E-print Network

    Etudes, Perpignan, Francia. Temas de investigación:Redes tróficas y funcionamiento trófico en ecosistemas legislación ambiental, análisis espacial de ecosistemas, teledetección y sistemas de información geográfica

  7. SECCIN DE PROYECTOS DE INGENIERA

    E-print Network

    redes de telecomunicaciones. Metodologías modernas de educa- ción coadyuvadas con tecnologías avanzadas Massachusetts, EUA. Temas de investigación: Diseño de sistemas de telecomunicaciones. Siste- ma funcional de

  8. Sistemi Operativi* Giuseppe Prencipe

    E-print Network

    Prencipe, Giuseppe

    'utilizzo delle risorse Gli utenti possono Essere connessi a Mainframe Massimizzare uso risorse Essere connessi Sistema Operativo. Computers sono esotici strumenti sperimentali (mainframe). Programmi in linguaggio

  9. Measurement and evaluation of national family planning programs.

    PubMed

    Mauldin, W P

    1967-03-01

    RESUMEN: En los últimos quince años diez paises han inaugurado programas nacionales de planeamiento familiar: India, Pakistán, Corea del Sur, Taiwan, Turquía, Malasia, Ceilán, Túez, la República Arabe Unida, y Marruecos. Otros paises, incluyendo Tailandia, Hong Kong, Singapur, Kenya, Barbados, Trinidad y los Estados Unidos, apoyan y/o estimulan actividades de planeamiento familiar. En la mayor parte de los casos la razón fundamental del programa ha sido que si la tasa de crecimiento poblacional disminuyera, aumentaría la tasa de crecimiento económico.Las metas de largo alcance, expresadas típicamente en términos de reducir las tasa.de de natalidad o de crecimiento, tienen su ejemplo en el propósito de Pakistán de reducir su tasa de crecimiento a 26 para 1970; el de Corea de reducir su tasa de natalidad a 20 para 1971; y el de India de reducir su tasa de natalidad a 25 para 1973.Los objectivos intermedios, que cubren diversos aspectos del pro grama, incluyen metas específicas para un determinado mes a año, considerando personal, la adquisición de anticonceptivos, y el número de usarios por método. Las metas específicas anuales de aceptantes de dispositivos intrauterinos (IUD), para Taiwán, Corea, Túnez, Pakistán e India, son comunes, tanto por la naturaleza del artefacto, como por la facilidad de medición de los que continúan utilizándolos. El programa de evaluación en Taiwán, que trata de medir por diversos medios los efectos inmediatos, mediatos y de largo plazo del programa de planeamiento familiar sirve de modelo. El propósito de la evaiuación de un programa de planeamiento familiar es contribuir a la efectividad y eficiencia del programa, midiendo y analizando su progreso. Las áreas a medir pueden ser clasificadas como- (1) conocimiento acerca de; (2) actitudes hacia; (3) práctica de control de natalidad; y (4) nivel de fecundidad.Un buen sistema de evaluación debería incluir: A. Un buen conjunto de estadísticas de servicio presentadas en formularios estandarizados, en las siguienies formas: 1. Informes nensuales por áreas administrativas, sobre los actuales servicios de planeamiento familiar proporcionados en la actualidad, de carácter permanente o de larga duración (al presente, esterilización y IUD de acuerdo a las siguientes características del receptor: residencia, edad, paridad (número de hijos vivos por sexo), y donde se enteró del programa, si es posible "clase";(probablemente educación de la madre, pero posiblemente ocupación del esposo, ingreso, o equivalente); prácticas anticonceptivas anteriores; intervalo; y deseo de tener más hijos. En un programa grande estos datos pueden obtenerse en base a una muestra. 2. Informes mensuales sobre la distribución de suministros anticonceptivos (condones, píldoras, sustancias efervescentes, etc.), los primeros suministros deben ir acompañados de un registro de las características del recipiente, como anteriormente; los suministros subsecuentes se regietrarán sólo en volumen bruto. Esto también se aplicará al ritmo, donde éste método se enseñe a un número considerable de mujeres. 3. Informes regulares sobre las actividades de planeamiento familiar de médicos privados, como una estimación del efecto catalítico del programa del gobierno sobre ci sector privado. 4. Datos generates mensuales, ppr áreas admirtistrativas importantes, sabre: visitas domiciliarias, reuniones, cuñas radiates y televisadas, avisos en los periódicos y personal que trabaja. 5. Para propósitos de seguimiento una entrevi eta de campo cada 6 a 12 meses a cada N mujer de las listas para (1) y (2) arriba, en un total de 300 o 400, para conocer las tasas de continuación y las razones de abandono (ej: desea otro hijo, insatisfecha can ci método, otras). Las mue.stras podrían ser de 300 cada una, con una supuesta experiencia de 6, 12, 18 y 24 meses. B. Un buen conjunto de datos sobre costa (datos sobre cotos actulaes atribuíbles directamente al programa de planeamiento familiar) fraccionados par áreas principales y cinco a seis

  10. Urbanization and the groundwater budget, metropolitan Seoul area, Korea

    NASA Astrophysics Data System (ADS)

    Kim, Yoon-Young; Lee, Kang-Kun; Sung, Ig Hwan

    2001-07-01

    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 principales 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 sistema 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.

  11. UNIVERSIDADE FEDERAL DE SANTA CATARINA Coordenadoria do Programa de Ps-Graduao em

    E-print Network

    Hanazaki, Natalia

    Quarta Quinta Sexta 08h20 às 10h00 DAS 410038 Conceitos Básicos de Controle e Automação Profs. Marcelo e Controle Prof. Eugenio 14h20 às 16h00 Reuniões DAS 410037 Técnicas de Implementação de sistemas. Leandro e Rômulo DAS 410064 Sistemas Dinâmicos Lineares Prof. Daniel Coutinho 16h20 às 18h00 Reuniões #12;

  12. {00012710;1} Fecha efectiva: 23 de septiembre de 2013

    E-print Network

    Leistikow, Bruce N.

    SALUD DE LA UNIVERSIDAD DE CALIFORNIA DAVIS ESTE AVISO DESCRIBE CÓMO LA INFORMACIÓN DE SALUD SOBRE USTED DETENIDAMENTE. SISTEMA DE SALUD DE UC DAVIS El Sistema de Salud de UC Davis es uno de los componentes de la facultades de medicina y otras escuelas profesionales de salud de UC, las áreas de servicios de salud para

  13. UNIDAD GUADALAJARA La Unidad Guadalajara del Cinvestav se inici el 14 de noviembre de 1988 con

    E-print Network

    . Nuestros sistemas se en- cuentran funcionando principalmente en las redes telefónicas de Estados Uni- dos, diseño electrónico, sistemas de potencia y telecomunicaciones. En 1995 la Unidad Guadalajara inició sus velocidad; diseño de circuitos integrados para telecomunicaciones. luis.leyva@cts-design.com #12

  14. COMUNICACIONES PERSONAL ACADMICO Y TEMAS DE

    E-print Network

    investigación. Diseño de Sistemas de Telecomunicaciones. Sistema Funcional de Redes de Telecomunicaciones, Inglaterra. Temas de investigación: Procesamiento de señales, Redes Ad-hoc móviles, Detección multiusuario antenas para redes inalámbricas; técnicas de acceso múltiple; mecanismos para mejorar la capa- cidad de

  15. Anuario 2012/2013 Departamento de Arquitectura de Computadores

    E-print Network

    Politècnica de Catalunya, Universitat

    Computadores, Redes y Sistemas (Master CANS) . . . . 16 2.1.6 Máster en Tecnologías de la Información (Master . . . . . . . . . . . . . . . . . . . . . . . 24 2.3.1 Máster en Arquitectura de Computadores, Redes y Sistemas (FIB) . . . . . . . . 24 2.3.2 Máster en Ciencias de la Ingeniería de las Telecomunicaciones y Gestión (EETAC) . . 25 2.3.3 Máster en

  16. Anuario 2009/2010 Departamento de Arquitectura de Computadores

    E-print Network

    Politècnica de Catalunya, Universitat

    ) . . . . . . . . . . . . . . . . 15 2.1.7 Máster en Arquitectura de Computadores, Redes y Sistemas (Master CANS) . . . . 15 2 Computadores, Redes y Sistemas (FIB) . . . . . . . . 24 2.3.2 Máster en Ciencias de la Ingeniería de las Telecomunicaciones y Gestión (EPSC) . . 25 2.3.3 Máster en Tecnologías de la Información (FIB) . . . . . . . . . . . . . . .

  17. Universit degli Studi di Verona Dipartimento di Biotecnologie

    E-print Network

    Romeo, Alessandro

    blocco? e) Qual'è l'energia totale del sistema? Esercizio 2. Due'è l'energia potenziale elettrica del sistema di cariche se q1=+q, q2=-4q e q. Un protone con energia cinetica di 5.3 MeV entra nella camera, muovendosi

  18. REGIMENTO DO CURSO DE PS-GRADUAO EM ENGENHARIA E TECNOLOGIA ESPACIAIS

    E-print Network

    REGIMENTO DO CURSO DE PÓS-GRADUAÇÃO EM ENGENHARIA E TECNOLOGIA ESPACIAIS ÁREA DE CONCENTRAÇÃO EM ENGENHARIA E GERENCIAMENTO DE SISTEMAS ESPACIAIS TÍTULO I DOS OBJETIVOS DO CURSO Art. 1º ­ A Área de Concentração em Engenharia e Gerenciamento de Sistemas Espaciais (CSE) do Curso de Pós-graduação em Engenharia

  19. Matematica Generale 2013-2014 (D-L) Determinanti e caratteristica di una matrice

    E-print Network

    Robbiano, Lorenzo

    orlati (Kronecker). Es. 5. Calcolare la caratteristica delle seguenti matrici reali 1 1 -1 1 1 1 -3 1 z t b = + 1 0 a) Per quali valori reali di il sistema ha tra le sue soluzioni (2, 1, 1, 0) ? b) Per quali valori reali di il sistema ha 1 soluzioni? c) Esistono valori reali di per i quali il

  20. Teoria delle pertubazioni 1 Teoria delle perturbazioni in Meccanica Classica

    E-print Network

    Roma "La Sapienza", Università di

    delle Scienze Fisiche dell'Istituto della Enciclopedia Italiana Autore Giovanni Gallavotti Roma hamiltoniana vicina a quella di un sistema integrabile. L'esempio forse piâ??u noto â??e quello della teoria dei sistema di semplici oscillatori armonici (rimpiazzando l'energia potenziale con una funzione puramente

  1. Universit degli Studi di Roma "La Sapienza" CF 80209930587 PI 02133771002

    E-print Network

    Di Pillo, Gianni

    sistema di monitoraggio basato su Arduino da svolgere per il Dipartimento di Informatica dell' Università svolgimento delle seguenti attività: Sviluppo di un sistema di monitoraggio basato su Arduino. Articolo 2 comparativa sono: 1) Laurea Magistrale in Informatica 2) Esperienze pregresse di programmazione Arduino Il

  2. On-Site Wastewater Treatment Systems: Sand Filters (Spanish) 

    E-print Network

    Lesikar, Bruce J.; Enciso, Juan

    2000-10-13

    -Galveston. Producido por Agricultural Communications, el Sistema Universitario Texas A&M Toda la serie de publicaciones, ?Sistemas individuales para el tratamiento de aguas negras,? puede obtenerse gratis del World Wide Web en: http://texaserc.tamu.edu/pubs/ewaste Los...

  3. N 27, quinta-feira, 7 de fevereiro de 201364 ISSN 1677-7069 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,

    E-print Network

    Liu, I-Shih

    de Iniciação Cientifica, Introdução e Pesquisa Cientifica, e Mo- delagem Molecular 40h-DE Graduação - IBCCF Biologia de Sistemas Biologia de Sistemas: Fronteiras do Conhecimento 40h-DE Doutorado 3 182 CCS Instituto de Ciências Biomédicas - ICB Programa de Graduação em Histologia Biologia Tecidual e Sistêmica 40h

  4. De Novo Characterization of the Spleen Transcriptome of the Large Yellow Croaker (Pseudosciaena crocea) and Analysis of the Immune Relevant Genes and Pathways Involved in the Antiviral Response

    PubMed Central

    Ding, Yang; Ao, Jingqun; Hu, Songnian; Chen, Xinhua

    2014-01-01

    The large yellow croaker (Pseudosciaena crocea) is an economically important marine fish in China. To understand the molecular basis for antiviral defense in this species, we used Illumia paired-end sequencing to characterize the spleen transcriptome of polyriboinosinic:polyribocytidylic acid [poly(I:C)]-induced large yellow croakers. The library produced 56,355,728 reads and assembled into 108,237 contigs. As a result, 15,192 unigenes were found from this transcriptome. Gene ontology analysis showed that 4,759 genes were involved in three major functional categories: biological process, cellular component, and molecular function. We further ascertained that numerous consensus sequences were homologous to known immune-relevant genes. Kyoto Encyclopedia of Genes and Genomes orthology mapping annotated 5,389 unigenes and identified numerous immune-relevant pathways. These immune-relevant genes and pathways revealed major antiviral immunity effectors, including but not limited to: pattern recognition receptors, adaptors and signal transducers, the interferons and interferon-stimulated genes, inflammatory cytokines and receptors, complement components, and B-cell and T-cell antigen activation molecules. Moreover, the partial genes of Toll-like receptor signaling pathway, RIG-I-like receptors signaling pathway, Janus kinase-Signal Transducer and Activator of Transcription (JAK-STAT) signaling pathway, and T-cell receptor (TCR) signaling pathway were found to be changed after poly(I:C) induction by real-time polymerase chain reaction (PCR) analysis, suggesting that these signaling pathways may be regulated by poly(I:C), a viral mimic. Overall, the antivirus-related genes and signaling pathways that were identified in response to poly(I:C) challenge provide valuable leads for further investigation of the antiviral defense mechanism in the large yellow croaker. PMID:24820969

  5. Viperin protein expression inhibits the late stage of respiratory syncytial virus morphogenesis.

    PubMed

    Jumat, Muhammad Raihan; Huong, Tra Ngyen; Ravi, Laxmi Iyer; Stanford, Rebecca; Tan, Boon Huan; Sugrue, Richard J

    2015-02-01

    We examined the effect of respiratory syncytial virus (RSV) infection on viperin protein expression in the permissive HEp2 and non-permissive RAW 264.7 macrophage cell lines. In RSV-infected HEp2 cells low levels of the viperin protein was localized to the virus-induced inclusion bodies and did not impair virus transmission in these cells. In contrast, RSV-infected RAW 264.7 cells increased expression of the STAT1 protein occurred at between 6 and 12h post-infection, which coincided with the appearance of P-STAT1. A relatively high level of viperin protein expression was detected in infected RAW 264.7 cells, and it was extensively localized throughout the cytoplasm of infected cells. The effect of early viperin protein expression on RSV infection in cells that are normally permissive to RSV cultivation was examined by using either transient transfected HEp2 cells or stable transfected HeLa cells that expressed the viperin protein. The early expression of viperin in HeLa cells did not prevent virus infection, and no significant inhibitory effect on either virus protein expression or targeting of virus proteins to the cell surface was noted. However, while inclusion body formation was not inhibited, early viperin protein expression was associated with the inhibition of virus filament formation and reduced cell-to-cell virus transmission. Inhibition of virus filament formation was also observed in HEp2 cells expressing viperin. Collectively our data suggested that viperin impaired RSV transmission by inhibiting virus filament formation, providing a basis for its anti-virus activity in RSV-infected cells. PMID:25433308

  6. Therapeutic approaches to the treatment of recurrent respiratory papillomatosis of the aerodigestive tract (a clinical study)

    PubMed Central

    Avramov, Toma; Vetckova, Evelina; Nikolova, Maria; Valev, Dinko; Manolova, Antoaneta; Tafradgiiska, Maya; Kostadinov, Dimitar; Tchalacov, Ivan

    2014-01-01

    Recurrent respiratory papillomatosis (RRP) is a rare disease, characterized by recurrent proliferation of benign squamous cell papillomas in the larynx as well as in the other parts of the aerodigestive tract. We have compared different treatment options for RRP of the aerodigestive tract including surgical, conservative and combined approaches. A total of 43 patients with papillomatosis that received a combined therapy were followed in the period from 2009 to 2013. The treatment included electrosurgery and CO2 laser surgery alongside with either immunotherapy with Bacillus Calmette-Guerin (BCG) (Calgevax) or ?-interferon. In the control group without immunotherapy (n = 16) we used conventional microlaryngeal surgery. During the follow-up, relapse occurred in two patients for the CO2 laser surgery with Calgevax immunotherapy group (n = 16). In the group treated with ?-interferon preceded by CO2 laser surgery (n = 9) and electrosurgery (n = 2), relapse had occurred in three patients. Among the control group, recurrence was observed in six patients. This required re-operation. Our data showed a three times more frequent relapses among patients who were operated with conventional surgery as compared to those operated with CO2 laser surgery and Calgevax immunotherapy, and two times more often relapses in patients operated with conventional surgery as compared to those with electrosurgery and CO2 laser surgery and application of ?-interferon therapy. Conventional and laser surgeries have a palliative effect, though playing an important role in ensuring the airway patency. While specific antivirus treatment for human papilloma viruses does not exist, the immune modulation with Calgevax considerably reduces the frequency of relapses, by stimulating cellular immune effector mechanisms. The combined protocol allows rarefication of relapses and improvement of patients’ quality of life, but not complete healing.

  7. Targeting N-Glycan Cryptic Sugar Moieties for Broad-Spectrum Virus Neutralization: Progress in Identifying Conserved Molecular Targets in Viruses of Distinct Phylogenetic Origins

    PubMed Central

    Wang, Denong; Tang, Jin; Tang, Jiulai; Wang, Lai-Xi

    2015-01-01

    Identifying molecular targets for eliciting broadly virus-neutralizing antibodies is one of the key steps toward development of vaccines against emerging viral pathogens. Owing to genomic and somatic diversities among viral species, identifying protein targets for broad-spectrum virus neutralization is highly challenging even for the same virus, such as HIV-1. However, viruses rely on host glycosylation machineries to synthesize and express glycans and, thereby, may display common carbohydrate moieties. Thus, exploring glycan-binding profiles of broad-spectrum virus-neutralizing agents may provide key information to uncover the carbohydrate-based virus-neutralizing epitopes. In this study, we characterized two broadly HIV-neutralizing agents, human monoclonal antibody 2G12 and Galanthus nivalis lectin (GNA), for their viral targeting activities. Although these agents were known to be specific for oligomannosyl antigens, they differ strikingly in virus-binding activities. The former is HIV-1 specific; the latter is broadly reactive and is able to neutralize viruses of distinct phylogenetic origins, such as HIV-1, severe acute respiratory syndrome coronavirus (SARS-CoV), and human cytomegalovirus (HCMV). In carbohydrate microarray analyses, we explored the molecular basis underlying the striking differences in the spectrum of anti-virus activities of the two probes. Unlike 2G12, which is strictly specific for the high-density Man9GlcNAc2Asn (Man9)-clusters, GNA recognizes a number of N-glycan cryptic sugar moieties. These include not only the known oligomannosyl antigens but also previously unrecognized tri-antennary or multi-valent GlcNAc-terminating N-glycan epitopes (Tri/m-Gn). These findings highlight the potential of N-glycan cryptic sugar moieties as conserved targets for broad-spectrum virus neutralization and suggest the GNA-model of glycan-binding warrants focused investigation. PMID:25774492

  8. IgA antibody response of swine to foot-and-mouth disease virus infection and vaccination.

    PubMed

    Pacheco, Juan M; Butler, John E; Jew, Jessica; Ferman, Geoffrey S; Zhu, James; Golde, William T

    2010-04-01

    Foot-and-mouth disease virus (FMDV) continues to be a significant economic problem worldwide. Control of the disease involves the use of killed-virus vaccines, a control measure developed decades ago. After natural infection, the primary site of replication of FMDV is the pharyngeal area, suggesting that a mucosal immune response is the most effective. Humoral immunity to killed-virus vaccination induces antibodies that can prevent the clinical disease but not local infection. Determining whether infection or vaccination stimulates IgA-mediated local immunity depends on the method of analysis. Different assays have been described to analyze the quality of antibody responses of cattle and swine to FMDV, including indirect double-antibody sandwich enzyme-linked immunosorbent assay (IDAS-ELISA) and antibody capture assay-ELISA (ACA-ELISA). We tested these assays on swine and show that vaccinated animals had FMDV-specific IgM and IgG but no IgA in either serum or saliva. After the infection, both assays detected FMDV-specific IgM, IgG, and IgA in serum. Notably, serum IgA was more readily detected using the ACA-ELISA, whereas IgA was not detected in saliva with this assay. FMDV-specific IgA antibodies were detected in saliva samples using the IDAS-ELISA. These data show that parenterally administered, killed-virus vaccine does not induce a mucosal antibody response to FMDV and illuminates limitations and appropriate applications of the two ELISAs used to measure FMDV-specific responses. Further, the presence of the IgA antivirus in serum correlates with the presence of such antibodies in saliva. PMID:20107003

  9. Physicochemical characterization of silver nanoparticles synthesize using Aloe Vera (Aloe barbadensis)

    NASA Astrophysics Data System (ADS)

    Kuponiyi, Abiola; Kassama, Lamin; Kukhtareva, Tatiana

    2014-08-01

    Production of silver nanoparticles (AgNPs) using different biological methods is gaining recognition due to their multiple applications. Although, several physical and chemical methods have been used for the synthesis and stabilizing of AgNPs, yet, a green chemistry method is preferable because it is cost effective and environmentally friendly. The synthesis was done using Aloe Vera (AV) extract because it has chemical compounds such as "Antrokinon" that are known for its antibacterial, antivirus and anticancer properties. We hypothesize that AV extract can produce a stable nanoparticles within the 100 nm range and be biologically active. The biological compounds were extracted from AV skin with water and ethanol which was used as the reduction agent for the synthesis of nanoparticles. The biological extract and AgNO3 were blended and heated to synthesize AgNPs. The reaction process was monitored using UV-Visible spectroscopy. Fourier Transfer Infrared spectroscopy (FTIR) was used for the characterization of biological compounds and their substituent groups before and after the reaction process. Dynamic Light scattering (DLS) method was used to characterize particle size of AgNPs and their biomolecular stability. Results showed that biological compounds such as aliphatic amines, alkenes (=C-H), alkanes (C-H), alcohol (O-H) and unsaturated esters(C-O), which has an average particle size of 109 and 215.8 nm and polydispersity index of 0.451 and 0.375 for ethanol and water extract, respectively. According to TEM measurements the size of AgNPs are in the range 5-20 nm The results suggested that ethanol derived AgNPs contained higher yield of organic compounds, thus has better solubility power than water. Ag NPs can be used to control salmonella in poultry industry.

  10. Sangivamycin induces apoptosis by suppressing Erk signaling in primary effusion lymphoma cells.

    PubMed

    Wakao, Kazufumi; Watanabe, Tadashi; Takadama, Tadatoshi; Ui, Sadaharu; Shigemi, Zenpei; Kagawa, Hiroki; Higashi, Chizuka; Ohga, Rie; Taira, Takahiro; Fujimuro, Masahiro

    2014-02-01

    Sangivamycin, a structural analog of adenosine and antibiotic exhibiting antitumor and antivirus activities, inhibits protein kinase C and the synthesis of both DNA and RNA. Primary effusion lymphoma (PEL) is an aggressive neoplasm caused by Kaposi's sarcoma-associated herpesvirus (KSHV) in immunosuppressed patients and HIV-infected homosexual males. PEL cells are derived from post-germinal center B cells, and are infected with KSHV. Herein, we asked if sangivamycin might be useful to treat PEL. We found that sangivamycin killed PEL cells, and we explored the underlying mechanism. Sangivamycin treatment drastically decreased the viability of PEL cell lines compared to KSHV-uninfected B lymphoma cell lines. Sangivamycin induced the apoptosis of PEL cells by activating caspase-7 and -9. Further, sangivamycin suppressed the phosphorylation of Erk1/2 and Akt, thus inhibiting activation of the proteins. Inhibitors of Akt and MEK suppressed the proliferation of PEL cells compared to KSHV-uninfected cells. It is known that activation of Erk and Akt signaling inhibits apoptosis and promotes proliferation in PEL cells. Our data therefore suggest that sangivamycin induces apoptosis by inhibiting Erk and Akt signaling in such cells. We next investigated whether sangivamycin, in combination with an HSP90 inhibitor geldanamycin (GA) or valproate (valproic acid), potentiated the cytotoxic effects of the latter drugs on PEL cells. Compared to treatment with GA or valproate alone, the addition of sangivamycin enhanced cytotoxic activity. Our data thus indicate that sangivamycin may find clinical utility as a novel anti-cancer agent targeting PEL. PMID:24434142

  11. [Explore new clinical application of Huanglian and corresponding compound prescriptions from their traditional use].

    PubMed

    Feng, Yi-Bin; Luo, Wei-Quan; Zhu, Shi-Qing

    2008-05-01

    Huanglian is a commonly used Chinese medicinal herb in the ancient and the present. It has a history of 2000 years in clinical application, having the efficacy of "Clear away heat and remove dampness, purge the sthenic fire and eliminate toxic materials", therefore can be used for various diseases or syndromes in types of dampness-heat and fire-toxin by internal or external use. Compound prescriptions mainly based on Huanglian or prescribed by Huanglian, such as Puji Xiaodu Yin, Huanglian Jiedu Tang, Zhusha Anshen Wan, Qingying Tang, Angong Niuhuang Wan, Niuhuang Qingxin Wan, Jiaotai Wan, Huanglian Ejiao Tang, Zuojin Wan, Danggui Longhui Wan, Huanglian Yanggan Wan, Wu Xiexin Tang, Lianpu Yin, Gegen Huangqin Huanglian Tang, Baitouweng Tang, Xianglian Wan etc. All of these are well-known formulas for clearing away toxin of heat-fire of heart and liver, as well as dampness-heat of stomach and intestines. Nowadays, Huanglian is generally considered as a kind of antibiotic and antivirus herb and is widely used for many infective diseases. In fact, it is also used to cure cardiovascular and cerebrovascular diseases, diabetes and cancer based on pharmacological studies. Having been using Huanglian in treating the above diseases and having conducted clinical and experimental research on cancer and liver diseases, the author observed that Huanglian and its compound prescriptions have obvious effects on liver diseases such as acute or chronic hepatitis, liver fibrosis, liver cirrhosis and liver cancer due to types of dampness-heat and fire-toxin. Part of the effects has been proved by experimental research and it is worth carrying out more research in this area for development and clinical application. PMID:18720877

  12. Role of endoplasmic reticulum stress in age-related susceptibility to lung fibrosis.

    PubMed

    Torres-González, Edilson; Bueno, Marta; Tanaka, Atsuko; Krug, Laurie T; Cheng, Dong-Sheng; Polosukhin, Vasiliy V; Sorescu, Dan; Lawson, William E; Blackwell, Timothy S; Rojas, Mauricio; Mora, Ana L

    2012-06-01

    The incidence of idiopathic pulmonary fibrosis (IPF) increases with age. The mechanisms that underlie the age-dependent risk for IPF are unknown. Based on studies that suggest an association of IPF and ?herpesvirus infection, we infected young (2-3 mo) and old (?18 mo) C57BL/6 mice with the murine ?herpesvirus 68. Acute murine ?herpesvirus 68 infection in aging mice resulted in severe pneumonitis and fibrosis compared with young animals. Progressive clinical deterioration and lung fibrosis in the late chronic phase of infection was observed exclusively in old mice with diminution of tidal volume. Infected aging mice showed higher expression of transforming growth factor-? during the acute phase of infection. In addition, aging, infected mice showed elevation of proinflammatory cytokines and the fibrocyte recruitment chemokine, CXCL12, in bronchoalveolar lavage. Analyses of lytic virus infection and virus reactivation indicate that old mice were able to control chronic infection and elicit antivirus immune responses. However, old, infected mice showed a significant increase in apoptotic responses determined by in situ terminal deoxynucleotidyl transferase dUTP nick end labeling assay, levels of caspase-3, and expression of the proapoptotitc molecule, Bcl-2 interacting mediator. Apoptosis of type II lung epithelial cells in aging lungs was accompanied by up-regulation of endoplasmic reticulum stress marker, binding immunoglobulin protein, and splicing of X-box-binding protein 1. These results indicate that the aging lung is more susceptible to injury and fibrosis associated with endoplasmic reticulum stress, apoptosis of type II lung epithelial cells, and activation of profibrotic pathways. PMID:22227563

  13. Role of Endoplasmic Reticulum Stress in Age-Related Susceptibility to Lung Fibrosis

    PubMed Central

    Torres-González, Edilson; Bueno, Marta; Tanaka, Atsuko; Krug, Laurie T.; Cheng, Dong-Sheng; Polosukhin, Vasiliy V.; Sorescu, Dan; Lawson, William E.; Blackwell, Timothy S.; Rojas, Mauricio

    2012-01-01

    The incidence of idiopathic pulmonary fibrosis (IPF) increases with age. The mechanisms that underlie the age-dependent risk for IPF are unknown. Based on studies that suggest an association of IPF and ?herpesvirus infection, we infected young (2–3 mo) and old (?18 mo) C57BL/6 mice with the murine ?herpesvirus 68. Acute murine ?herpesvirus 68 infection in aging mice resulted in severe pneumonitis and fibrosis compared with young animals. Progressive clinical deterioration and lung fibrosis in the late chronic phase of infection was observed exclusively in old mice with diminution of tidal volume. Infected aging mice showed higher expression of transforming growth factor-? during the acute phase of infection. In addition, aging, infected mice showed elevation of proinflammatory cytokines and the fibrocyte recruitment chemokine, CXCL12, in bronchoalveolar lavage. Analyses of lytic virus infection and virus reactivation indicate that old mice were able to control chronic infection and elicit antivirus immune responses. However, old, infected mice showed a significant increase in apoptotic responses determined by in situ terminal deoxynucleotidyl transferase dUTP nick end labeling assay, levels of caspase-3, and expression of the proapoptotitc molecule, Bcl-2 interacting mediator. Apoptosis of type II lung epithelial cells in aging lungs was accompanied by up-regulation of endoplasmic reticulum stress marker, binding immunoglobulin protein, and splicing of X-box–binding protein 1. These results indicate that the aging lung is more susceptible to injury and fibrosis associated with endoplasmic reticulum stress, apoptosis of type II lung epithelial cells, and activation of profibrotic pathways. PMID:22227563

  14. Functional stability of 3D8 scFv, a nucleic acid-hydrolyzing single chain antibody, under different biochemical and physical conditions.

    PubMed

    Lee, Joungmin; Park, Hyunjoon; Kim, Minjae; Seo, Youngsil; Lee, Yeonjin; Byun, Sung June; Lee, Sukchan; Kwon, Myung-Hee

    2015-12-30

    3D8 single-chain Fv (scFv) is a catalytic nucleic acid antibody with anti-viral activity against a broad spectrum of viruses. Here we investigated the functional stability of 3D8 scFv to provide a basis for engineering a 3D8 scFv derivative and for developing stable formulations with improved stability and potential use as an anti-viral agent. The stability of 3D8 scFv was assessed by measuring its DNA-hydrolyzing activity under different biochemical and physical conditions using a fluorescence resonance energy transfer (FRET)-based method. In addition, the anti-influenza (H9N2) effect of 3D8 scFv was evaluated in A549 cells. 3D8 scFv was stable at 50°C for 6h at pH 7.2, for 3 days at pH 4-10 at 37°C and 30 days at pH 4-8 at 37°C. The stability was not affected by a reducing condition, freeze-thawing for up to 30 cycles, or lyophilization. Evaluation of the anti-virus effect showed that cells treated with 32-128 units of 3D8 scFv showed a 50% decrease in influenza replication compared to untreated cells. Based on its enzymatic stability in various biochemical and physical environments, 3D8 scFv holds good potential for development as an anti-viral therapeutic. PMID:26536531

  15. Evolution of microbes and viruses: a paradigm shift in evolutionary biology?

    PubMed Central

    Koonin, Eugene V.; Wolf, Yuri I.

    2012-01-01

    When Charles Darwin formulated the central principles of evolutionary biology in the Origin of Species in 1859 and the architects of the Modern Synthesis integrated these principles with population genetics almost a century later, the principal if not the sole objects of evolutionary biology were multicellular eukaryotes, primarily animals and plants. Before the advent of efficient gene sequencing, all attempts to extend evolutionary studies to bacteria have been futile. Sequencing of the rRNA genes in thousands of microbes allowed the construction of the three- domain “ribosomal Tree of Life” that was widely thought to have resolved the evolutionary relationships between the cellular life forms. However, subsequent massive sequencing of numerous, complete microbial genomes revealed novel evolutionary phenomena, the most fundamental of these being: (1) pervasive horizontal gene transfer (HGT), in large part mediated by viruses and plasmids, that shapes the genomes of archaea and bacteria and call for a radical revision (if not abandonment) of the Tree of Life concept, (2) Lamarckian-type inheritance that appears to be critical for antivirus defense and other forms of adaptation in prokaryotes, and (3) evolution of evolvability, i.e., dedicated mechanisms for evolution such as vehicles for HGT and stress-induced mutagenesis systems. In the non-cellular part of the microbial world, phylogenomics and metagenomics of viruses and related selfish genetic elements revealed enormous genetic and molecular diversity and extremely high abundance of viruses that come across as the dominant biological entities on earth. Furthermore, the perennial arms race between viruses and their hosts is one of the defining factors of evolution. Thus, microbial phylogenomics adds new dimensions to the fundamental picture of evolution even as the principle of descent with modification discovered by Darwin and the laws of population genetics remain at the core of evolutionary biology. PMID:22993722

  16. Integration of Transcriptome, Proteome and Metabolism Data Reveals the Alkaloids Biosynthesis in Macleaya cordata and Macleaya microcarpa

    PubMed Central

    Liu, Fuqing; Huang, Peng; Zhu, Pengcheng; Chen, Jinjun; Shi, Mingming; Guo, Fang; Cheng, Pi; Zeng, Jing; Liao, Yifang; Gong, Jing; Zhang, Hong-Mei; Wang, Depeng; Guo, An-Yuan; Xiong, Xingyao

    2013-01-01

    Background The Macleaya spp., including Macleaya cordata and Macleaya microcarpa, are traditional anti-virus, inflammation eliminating, and insecticide herb medicines for their isoquinoline alkaloids. They are also known as the basis of the popular natural animal food addictive in Europe. However, few studies especially at genomics level were conducted on them. Hence, we performed the Macleaya spp. transcriptome and integrated it with iTRAQ proteome analysis in order to identify potential genes involved in alkaloids biosynthesis. Methodology and Principal Findings We elaborately designed the transcriptome, proteome and metabolism profiling for 10 samples of both species to explore their alkaloids biosynthesis. From the transcriptome data, we obtained 69367 and 78255 unigenes for M. cordata and M. microcarpa, in which about two thirds of them were similar to sequences in public databases. By metabolism profiling, reverse patterns for alkaloids sanguinarine, chelerythrine, protopine, and allocryptopine were observed in different organs of two species. We characterized the expressions of enzymes in alkaloid biosynthesis pathways. We also identified more than 1000 proteins from iTRAQ proteome data. Our results strongly suggest that the root maybe the organ for major alkaloids biosynthesis of Macleaya spp. Except for biosynthesis, the alkaloids storage and transport were also important for their accumulation. The ultrastructure of laticifers by SEM helps us to prove the alkaloids maybe accumulated in the mature roots. Conclusions/Significance To our knowledge this is the first study to elucidate the genetic makeup of Macleaya spp. This work provides clues to the identification of the potential modulate genes involved in alkaloids biosynthesis in Macleaya spp., and sheds light on researches for non-model medicinal plants by integrating different high-throughput technologies. PMID:23326424

  17. Physiological role of alternative oxidase (from yeasts to plants).

    PubMed

    Rogov, A G; Zvyagilskaya, R A

    2015-04-01

    Mitochondria of all so far studied organisms, with the exception of Archaea, mammals, some yeasts, and protists, contain, along with the classical phosphorylating cytochrome pathway, a so-called cyanide-insensitive alternative oxidase (AOX) localized on the matrix side of the mitochondrial inner membrane, and electron transport through which is not coupled with ATP synthesis and energy accumulation. Mechanisms underlying plentiful functions of AOX in organisms at various levels of organization ranging from yeasts to plants are considered. First and foremost, AOX provides a chance of cell survival after inhibiting the terminal components of the main respiratory chain or losing the ability to synthesize these components. The vitally important role of AOX is obvious in thermogenesis of thermogenic plant organs where it becomes the only terminal oxidase with a very high activity, and the energy of substrate oxidation by this respiratory pathway is converted into heat, thus promoting evaporation of volatile substances attracting pollinating insects. AOX plays a fundamentally significant role in alleviating or preventing oxidative stress, thus ensuring the defense against a wide range of stresses and adverse environmental conditions, such as changes in temperature and light intensities, osmotic stress, drought, and attack by incompatible strains of bacterial pathogens, phytopathogens, or their elicitors. Participation of AOX in pathogen survival during its existence inside the host, in antivirus defense, as well as in metabolic rearrangements in plants during embryogenesis and cell differentiation is described. Examples are given to demonstrate that AOX might be an important tool to overcome the adverse aftereffects of restricted activity of the main respiratory chain in cells and whole animals. PMID:25869356

  18. Sangivamycin induces apoptosis by suppressing Erk signaling in primary effusion lymphoma cells

    SciTech Connect

    Wakao, Kazufumi; Watanabe, Tadashi; Takadama, Tadatoshi; Ui, Sadaharu; Shigemi, Zenpei; Kagawa, Hiroki; Higashi, Chizuka; Ohga, Rie; Taira, Takahiro; Fujimuro, Masahiro

    2014-02-07

    Highlights: • Sangivamycin induces the apoptosis of B cell lymphoma PEL cells. • Sangivamycin suppresses Erk signaling by inhibiting Erk phosphorylation in PEL cells. • The activation of Erk signaling is essential for PEL cell survival. • Sangivamycin induces the apoptosis of PEL cells without production of progeny virus. • Sangivamycin may serve as a novel drug for the treatment of PEL. - Abstract: Sangivamycin, a structural analog of adenosine and antibiotic exhibiting antitumor and antivirus activities, inhibits protein kinase C and the synthesis of both DNA and RNA. Primary effusion lymphoma (PEL) is an aggressive neoplasm caused by Kaposi’s sarcoma-associated herpesvirus (KSHV) in immunosuppressed patients and HIV-infected homosexual males. PEL cells are derived from post-germinal center B cells, and are infected with KSHV. Herein, we asked if sangivamycin might be useful to treat PEL. We found that sangivamycin killed PEL cells, and we explored the underlying mechanism. Sangivamycin treatment drastically decreased the viability of PEL cell lines compared to KSHV-uninfected B lymphoma cell lines. Sangivamycin induced the apoptosis of PEL cells by activating caspase-7 and -9. Further, sangivamycin suppressed the phosphorylation of Erk1/2 and Akt, thus inhibiting activation of the proteins. Inhibitors of Akt and MEK suppressed the proliferation of PEL cells compared to KSHV-uninfected cells. It is known that activation of Erk and Akt signaling inhibits apoptosis and promotes proliferation in PEL cells. Our data therefore suggest that sangivamycin induces apoptosis by inhibiting Erk and Akt signaling in such cells. We next investigated whether sangivamycin, in combination with an HSP90 inhibitor geldanamycin (GA) or valproate (valproic acid), potentiated the cytotoxic effects of the latter drugs on PEL cells. Compared to treatment with GA or valproate alone, the addition of sangivamycin enhanced cytotoxic activity. Our data thus indicate that sangivamycin may find clinical utility as a novel anti-cancer agent targeting PEL.

  19. Access Control of Web- and Java-Based Applications

    NASA Technical Reports Server (NTRS)

    Tso, Kam S.; Pajevski, Michael J.

    2013-01-01

    Cybersecurity has become a great concern as threats of service interruption, unauthorized access, stealing and altering of information, and spreading of viruses have become more prevalent and serious. Application layer access control of applications is a critical component in the overall security solution that also includes encryption, firewalls, virtual private networks, antivirus, and intrusion detection. An access control solution, based on an open-source access manager augmented with custom software components, was developed to provide protection to both Web-based and Javabased client and server applications. The DISA Security Service (DISA-SS) provides common access control capabilities for AMMOS software applications through a set of application programming interfaces (APIs) and network- accessible security services for authentication, single sign-on, authorization checking, and authorization policy management. The OpenAM access management technology designed for Web applications can be extended to meet the needs of Java thick clients and stand alone servers that are commonly used in the JPL AMMOS environment. The DISA-SS reusable components have greatly reduced the effort for each AMMOS subsystem to develop its own access control strategy. The novelty of this work is that it leverages an open-source access management product that was designed for Webbased applications to provide access control for Java thick clients and Java standalone servers. Thick clients and standalone servers are still commonly used in businesses and government, especially for applications that require rich graphical user interfaces and high-performance visualization that cannot be met by thin clients running on Web browsers

  20. A Novel MVA Vectored Chikungunya Virus Vaccine Elicits Protective Immunity in Mice

    PubMed Central

    Weger-Lucarelli, James; Chu, Haiyan; Aliota, Matthew T.; Partidos, Charalambos D.; Osorio, Jorge E.

    2014-01-01

    Background Chikungunya virus (CHIKV) is a re-emerging arbovirus associated with febrile illness often accompanied by rash and arthralgia that may persist for several years. Outbreaks are associated with high morbidity and create a public health challenge for countries affected. Recent outbreaks have occurred in both Europe and the Americas, suggesting CHIKV may continue to spread. Despite the sustained threat of the virus, there is no approved vaccine or antiviral therapy against CHIKV. Therefore, it is critical to develop a vaccine that is both well tolerated and highly protective. Methodology/Principal Findings In this study, we describe the construction and characterization of a modified Vaccinia virus Ankara (MVA) virus expressing CHIKV E3 and E2 proteins (MVA-CHIK) that protected several mouse models from challenge with CHIKV. In particular, BALB/c mice were completely protected against viremia upon challenge with CHIKV after two doses of MVA-CHIK. Additionally, A129 mice (deficient in IFN?/?) were protected from viremia, footpad swelling, and mortality. While high anti-virus antibodies were elicited, low or undetectable levels of neutralizing antibodies were produced in both mouse models. However, passive transfer of MVA-CHIK immune serum to naïve mice did not protect against mortality, suggesting that antibodies may not be the main effectors of protection afforded by MVA-CHIK. Furthermore, depletion of CD4+, but not CD8+ T-cells from vaccinated mice resulted in 100% mortality, implicating the indispensable role of CD4+ T-cells in the protection afforded by MVA-CHIK. Conclusions/Significance The results presented herein demonstrate the potential of MVA to effectively express CHIKV E3-E2 proteins and generate protective immune responses. Our findings challenge the assumption that only neutralizing antibodies are effective in providing protection against CHIKV, and provides a framework for the development of novel, more effective vaccine strategies to combat CHIKV. PMID:25058320

  1. Informe a la Nación de mortalidad por cáncer sigue bajando

    Cancer.gov

    El Informe Anual a la Nación sobre el Estado del Cáncer, de 1975 a 2009, indica que los índices generales de mortalidad por cáncer siguen bajando en los Estados Unidos en hombres y mujeres, entre todos los grupos raciales y étnicos principales y para todo

  2. Comunicado de prensa del Informe Anual sobre el Estado del Cáncer 2015

    Cancer.gov

    Por primera vez, los investigadores han usado datos a nivel nacional para determinar la incidencia de los cuatro subtipos moleculares principales de cáncer de seno (mama) por edad, raza y grupo étnico, nivel de pobreza y varios otros factores. El informe

  3. Paris |13 dcembre, 2013 La dpendance au tabac renforce

    E-print Network

    viennent de prouver chez la souris que le besoin de nicotine, principale substance addictive du tabac mutation, qui affecte le récepteur neuronal à la nicotine, perturbe son fonctionnement et provoque en, la nicotine qu'il contient se fixe aux récepteurs nicotiniques, ce qui entraine l'activation du

  4. R E T O S D E I N V E S T I G A C I N E N

    E-print Network

    Escolano, Francisco

    Identificar los principales retos de investiga- ción en Ciencias de la Salud OBJETIVOS ESPECÍFICOS Presentar de Ciencias de la Salud. Vertebrar las diferentes líneas de investiga- ción desarrolladas en la Facultad de Ciencias de la Salud. Debatir sobre las prioridades de investigación en Ciencias de la Salud

  5. Reproduccion del ganado

    Technology Transfer Automated Retrieval System (TEKTRAN)

    La determination de prenez es una de las principales herramientas de manejo en el Ganado de came. Le habilidad de determiner prenez proporciona al productor un medio de tomar sus decsiones de seleccion y descartarte en momentos decisivos, enfocando los recursos de la operacion en reporductores confi...

  6. La pollution lumineuse Quelques remarques gnrales

    E-print Network

    Le Coroller, Hervé

    La pollution lumineuse Quelques remarques générales "Le terme pollution lumineuse sert à décrire un extérieur. Pour certains, la pollution lumineuse empêche l'observation de nuit du ciel et de ses principales sources de pollution lumineuse peuvent être clairement identifiées et il est possible d

  7. | 4 | 26 mars-23 avril 2015 | le journal n102 Pharmacie hospitalire

    E-print Network

    Halazonetis, Thanos

    pratiques vu d'ici vie étudiante La plateforme numérique Pharm-Ed propose gratuitement des cours et un colla- boratif, l'outil a déjà enregis- tré près de 260 inscriptions dans plus de 30 pays. Une, plusieurs innovations ont été appor- tées à la formule déjà bien rodée. «Une des principales remarques qui

  8. Departement d'informatique et de recherche operationnelle

    E-print Network

    Monnier, Stefan

    ), effacement des types. Ces sujets seront vu avec en arri`ere plan, comme application principale, les sont d´ej`a tr`es utilis´ees dans le design de syst`emes logiques, mais beaucoup moins dans le domaine

  9. Experimentos en columnaExperimentos en columna con aporte de materialcon aporte de material

    E-print Network

    Politècnica de Catalunya, Universitat

    . Mejora de la calidad del agua debida a procesos: Físicos Químicos Microbiolígicos Principales... #12;¿Por qué las columnas? #12;Objetivo proyecto ENSAT: Mejora del SAT para renaturalización de aguas) ·Cubiertas con papel aluminio. ·Agua de entrada del Llobregat. #12;Metodología 3-Muestreo y parámetros

  10. Deteccin Remota de Descargas a la Baha de San Juan, Puerto Rico. Jorge I. Wichy-Rosado

    E-print Network

    Gilbes, Fernando

    de Calidad Ambiental de P.R. y el USGS, mantienen un monitoreo anual de la calidad de sus aguas para aguas superficiales a cuerpos de aguas costeras, siempre es de vital importancia para proteger estos la Bahía de San Juan. Por medio de estas imágenes, se detecto que las descargas principales de aguas

  11. Lifelines-Pancreatic-Cancer-SPA-2013

    Cancer.gov

    LOS HISPANOS Y EL CÁNCER DE PÁNCREAS: COSAS PARA SABER por el Instituto Nacional del Cáncer Una de las causas principales de muerte relacionadas con el cáncer en los hispanos o latinos de los Estados Unidos es una enfermedad poco común pero con frecuencia

  12. Perte d'habitat Dfinitions, effets de la perte d'habitat sur la biodiversit,

    E-print Network

    Blouin-Demers, Gabriel

    Perte d'habitat Définitions, effets de la perte d'habitat sur la biodiversité, relations aire: 1771-1774 #12;La cause principale · Conversion, exploitation et altération des habitats naturels sont des conséquences de la croissance de la population humaine Perte d'habitat/ Risque d

  13. Rupture sous-cutanée du tendon long extenseur du pouce: à propos de 5 cas

    PubMed Central

    Abdelillah, Rachid; Abbassi, Najib; Erraji, Moncef; Abdeljawad, Najib; Yacoubi, Hicham; Daoudi, Abdelkrim

    2014-01-01

    La rupture spontanée du muscle long extenseur du pouce (EPL) du tendon au niveau du poignet est rare et principalement rapportés après fracture du radius distal à tubercule de Lister, dans la synovite, ténosynovite ou la polyarthrite rhumatoïde. Nous rapportons 5 cas de rupture spontanée du tendon long extenseur du pouce, traités par une greffe ou un transfert tendineux. PMID:25317233

  14. El medio interestelar alrededor de estrellas Of: HD 108

    NASA Astrophysics Data System (ADS)

    Cappa, C.; Testori, J. C.

    Hemos analizado la distribución del hidrógeno neutro interestelar en la vecindad de la estrella Of HD 108 en base a perfiles de la línea de 21 cm. Estos datos nos han permitido encontrar una probable burbuja interestelar asociada a la estrella. Comparamos estos resultados con la emisión en otros rangos espectrales y estimamos los principales parámetros físicos de la estructura.

  15. Photographic astrometry with MAMA.

    NASA Astrophysics Data System (ADS)

    Guibert, J.; Soubiran, C.; Geffert, M.

    Les qualités astrométriques de la MAMA (précision de positionnement: 1 micron, répétitivité: 0.2 micron), permettent d'obtenir, avec des plaques de Schmidt et une échelle de temps de 30 ans, des mouvement propres à mieux que 0.3?siècle. On présente les charactéristiques principales du système et quelques uns des projets astrométriques reposant sur l'utilisation de la machine.

  16. African Crop Science Journal, Vol. 22, No. 1, pp. 59 -67 ISSN 1021-9730/2014 $4.00 Printed in Uganda. All rights reserved 2014, African Crop Science Society

    E-print Network

    Gepts, Paul

    buds, and 100 seed weight. Key Words: Phaseolus vulgaris, Principal Component Analysis, Shannon Weaver diversity index RÉSUMÉ Les cultivars et variétés de haricot commun (Phaseolus vulgaris L.) cultivés par les graines. Mots Clés: Phaseolus vulgaris, Analyse de la Composante Principale, indice de diversité de

  17. La Gaceta de la RSME, Vol. 00 (0000), Num. 0, Pags. 116 1 Nudos y enlaces en mecanica de fluidos

    E-print Network

    Enciso, Alberto

    principales son los matem´aticos Leonhard Euler y Vladimir Arnold. A Euler (Basilea, 1707­San Petersburgo], que actualmente se conoce como ecuaci´on de Euler. Adem´as de en mec´anica de fluidos, Euler trabaj la propagaci´on del sonido. Euler introdujo mucha de la notaci´on matem´atica moderna del c

  18. Analisis de opiniones con ontologias Opinion mining with ontologies

    E-print Network

    Mascardi, Viviana

    que con ella se tendr´an m´as bases sustentables para poder decidir cu´ales son los pasos a seguir y poder dar sus opiniones, positivas o negativas sobre cualquier producto o servicio. Las principales los medios de comunicaci´on sociales, para obtener la informaci´on adecuada para modificar sus

  19. CAMPAGNE DE RECRUTEMENT ATER 2015-2016 Section(s) Intitul de la section Profil Candidats

    E-print Network

    Avignon et des Pays de Vaucluse, Université de

    , principalement en 1ère année et 2ème année de droit (Droit constitutionnel, droit administratif) ATER en droit'ATER feront l'objet d'un contrat conclu du 01/09/2015 au 31/08/2016. Aucun contrat ne sera conclu au-delà de

  20. ADJOINT EN GESTION ADMINISTRATIVE Corps : Adjoint technique de recherche et formation

    E-print Network

    Brest, Université de

    recrutement : contrat PACTE Branche d'activité professionnelle (BAP) : J « Gestion et pilotage » Emploi type recrutée exécutera des actes administratifs et de gestion courante au sein de la Faculté (UFR) de Sciences internes et externes Activités principales : 1. Agent administratif au sein du service de scolarité (50

  1. Educational Development Center ITC Febrero 2003

    E-print Network

    Capacitación ­ Proyecto RAP-CA Honduras ­ Febrero 2003 1 Introducción En el marco del proyecto RAP;Informe: Análisis de Necesidades de Capacitación ­ Proyecto RAP-CA Honduras ­ Febrero 2003 2 1 necesidades de capacitación para el proyecto RAP-CA Honduras consistió de tres componentes principales: 1. La

  2. FICHE DE POSTE Adjoint technique

    E-print Network

    Dellandréa, Emmanuel

    des espaces verts ACTIVITES PRINCIPALES Rénovations intérieures et extérieures sur l'ensemble de l'établissement : Rénovation de cloisons, sols, faux plafonds. Entretien des espaces verts Logistique : courses et courrier. QUALITES RELATIONNELLES COMPORTEMENT ... Sens du travail en équipe Autonomie, Respect des consignes

  3. La Soufrire: un volcan actif Histoire et Formation

    E-print Network

    Beauducel, François

    , déposant de très larges coulées de lave, ponces et débris. La dernière éruption magmatique remonte à l trois phases principales : 200 000 à 42 000 ans : phase " Grande Découverte" La première phase Bouillante et du Sans Toucher. Cette première phase se traduit par une alternance d'épisodes laviques

  4. CaroleAnne Godbout, stagiaire en nutrition, janvier 2014 La caroube

    E-print Network

    Laval, Université

    cette raison que parfois, on la substitut au cacao dans les recettes. On s'en sert parfois en tant qu remplacement au cacao lorsqu'on cuisine à maison. Une des raisons principales est qu'elle contient beaucoup moins de gras (0,2 comparé à 13,7). Comme la caroube est naturellement plus sucrée que le cacao

  5. N o D'ORDRE : ???? UNIVERSIT '

    E-print Network

    Zwald, Laurent

    PROJECTION MACHINE'' ET ANALYSE EN COMPOSANTES PRINCIPALES ` A NOYAU Rapporteurs : M. Peter L. BARTLETT M notre travail agr'eable et efficace. I should acknowledge the researchers of the departement ``Empirical referees, Jean­Philippe Vert and Peter L. Bartlett. ` A tous les membres du jury pour leur pr

  6. COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES DRHRS / SCP

    E-print Network

    Dobigeon, Nicolas

    LONGUE DUREE EN ENTREPRISE LAURENCE LOURS / CEA Saclay 01.69.08.20.90 stages@cea.fr http://www.cea 0438784067 cgodin@cea.fr Stéphanie Riché 0438781891 Développement d'algorithmes de traitement pour l'estimation des émotions et du stress Situé au sein du campus MINATEC, à Grenoble, la mission principale du LETI

  7. 86323 -Inspecteur Assurance Qualit Offre affiche : 5 octobre 2015

    E-print Network

    Leclercq, Remi

    86323 - Inspecteur Assurance Qualité Offre affichée : 5 octobre 2015 Nombre de poste(s) : 1(s)-ressource(s) Courriel : manon.comtois@lsu3pl.ca Description du poste Se rapportant au Directeur Assurance Qualité, les principales responsabilités de l'inspecteur assurance qualité comprennent toutes les activités visant à

  8. Nome e Cognome: Appello di Informatica

    E-print Network

    Dal Palù, Alessandro

    ha un tempo di accesso pi`u alto del tempo di accesso alla memoria principale. a. vero b. falso 5 quanto di tempo b. effettua una chiamata di I/O c. l'operazione di I/O richiesta `e terminata d. la CPU

  9. Revue d’Etudes Tibétaines

    E-print Network

    Achard, Jean-Luc

    2003-01-01

    , 157, 159. III : 164, 166, 168,169, 171, 172, 179, 181, 184, 186, 188, 197, 199, 200, 206, 207, 208, 209, 211, 212, 214, 218. Gling dang gling phran : La principale lignée et les lignées secondaires de Gling. DN : I : 8. Gling dkar : Pays de Gesar. La...

  10. SUJET DE THESE Ecole Doctorale "Mer et Sciences" de l'USTV

    E-print Network

    SUJET DE THESE Ecole Doctorale "Mer et Sciences" de l'USTV Titre : Approche numérique et expérimentale pour une meilleure description physique des processus de sub-méso-échelle: application à la mer (principalement les échanges de quantité de mouvement et de chaleur à l'interface air-mer) (Schaeffer et al, 2011a

  11. INFORMATICA Preparazione delle presentazioni con

    E-print Network

    Sproston, Jeremy

    ­ SCHERMATA INIZIALE 7 IMPRESS (OPENOFFICE) 8 FINESTRA PRINCIPALE 9 Barra di accesso rapido: Accesso immediato ad alcuni comandi (personalizzabile) Barra del titolo: nome del documento e dell'applicazione Barra dei menu: Divide i comandi in tipologie. I comandi di ogni voce di menu sono visualizzati nella barra

  12. Mieux dpenser son argent pour tre plus heureux !

    E-print Network

    Shoubridge, Eric

    en plus heureux. Par exemple, une promotion ou un nouvel emploi plus prestigieux, c'est plus d principale ? Que vous coûtera ce changement en termes de bonheur ou de satisfaction à vivre en tenant compte la rareté L'abondance peut être l'ennemi de la satisfaction. Que vous aimiez les voyages, les

  13. RUEEDMONDLABBE RUE RENE DESCARTES

    E-print Network

    Franchi, Jacques

    Brant Placedel'Université CAMPUS DE L'ESPLANADE Juin 2001 34. Institut Le Bel - Université Louis Pasteur (ULP. Centre médical étudiant (SIMPS) Bâtiments de l'Université Louis Pasteur Bâtiments interuniversitaires Entrées principales (Source : Université Louis Pasteur - Service communication > Numérotation des

  14. Xarxes de computadors II Tema 2 Administracin de ISP

    E-print Network

    Xarxes de computadors II #12;Tema 2 ­ Administración de ISP } a) Arquitectura y direccionamiento en } e) Conceptos avanzados #12;Tema 2 ­ Administración de ISP } a) Arquitectura y direccionamiento en Internet } 1) Entender la arquitectura general de Internet } 2) Identificar los actores principales de

  15. Plan Estratgico de Igualdad de Oportunidades Plan Estratgico de Igualdad de Oportunidades 2014-2016.

    E-print Network

    Cardeñosa, Jesús

    1 Plan Estratégico de Igualdad de Oportunidades 2014-2016 #12;Plan Estratégico de Igualdad de Algunas cifras sobre la igualdad y desigualdad de oportunidades entre mujeres y hombres. Principales problemas detectados...........................14 Eje 1. Igualdad entre mujeres y hombres en el ámbito

  16. Un vistazo al auge de la cirugía robótica para el cáncer de próstata

    Cancer.gov

    El uso de la cirugía robótica para el cáncer de próstata ha aumentado en forma acelerada. Lo que esta tendencia significa para los pacientes y el sistema de salud todavía sigue siendo objeto de estudio y debate.

  17. Dinámica de planetas extrasolares resonantes

    NASA Astrophysics Data System (ADS)

    Beauge, C.

    Actualmente se han detectado 117 planetas alrededor de estrellas de Secuencia Principal, incluyendo 12 sistemas planetarios, cada uno con dos o tres miembros. De estos últimos, ocho poseen planetas en órbitas próximas y sus perturbaciones gravitacionales se convierten en un factor fundamental para la estabilidad orbital del sistema. Todos se encuentran en configuraciones resonantes, desde la conmensurabilidad de movimientos 2/1 de Gliese 876, hasta la resonancia secular de Ups And. En esta presentación analizamos varios aspectos de la dinámica resonante de los planetas extrasolares, incluyendo la existencia de soluciones de equilibrio, construcción de modelos analógicos y métodos para la determinación de masas individuales. También discutimos por qué las resonancias son tan frecuentes en estos sistemas, comparado con nuestro propio Sistema Solar. Por último, intentamos relacionar estos modelos con la hipótesis de migración planetaria, buscando límites en su extensión y en los posibles mecanismos que le dieron origen.

  18. Asteroides - Duration: 31 seconds.

    NASA Video Gallery

    Los asteroides son más que una roca metálica que orbita alrededor del sol. Al igual que la Tierra, es posible que Ceres, el asteroide más grande del sistema solar, tenga casquetes polares. Únete a ...

  19. Corso di Laurea in Ingegneria Meccanica -Vecchio Ordinamento Anno Accademico 2010/2011

    E-print Network

    Demeio, Lucio

    . Determinare le configurazioni di equilibrio utilizzando le equazioni cardinali della statica. A O x y P, m H k equazioni cardinali della dinamica. #12;3. Nel sistema di riferimento O(x, y) indicato in figura, calcolare

  20. Corso di Laurea in Ingegneria Meccanica Anno Accademico 2010/2011

    E-print Network

    Demeio, Lucio

    le configurazioni di equilibrio utilizzando le equazioni cardinali della statica. A B C O x y k2 k R equazioni del moto del sistema utilizzando le equazioni cardinali della dinamica. m1 m2 l 3. Un corpo rigido

  1. Curso de Calculo de Uma Variavel

    E-print Network

    Cabral, Marco

    baseado no TEX; · Linus Torvalds pelo kernel do sistema operacional GNU-Linux; · Richard Stallman Tantau pelo ik e qp e Supoj Sutanthavibul, Brian Smith, Paul King e outros pelo fig, que possibilitaram

  2. Problemas para dormir

    Cancer.gov

    Dormir bien es importante para su salud física y mental. Un buen sueño en la noche no solo le ayuda a pensar claramente, también le baja su presión arterial, ayuda su apetito y fortalece su sistema inmunitario.

  3. Base Lunar Alpha - Duration: 30 seconds.

    NASA Video Gallery

    Tu misión: Recuperar los sistemas críticos cuando un meteoro daña los equipos de supervivencia de tu ambiente lunar. Parece una película de ciencia ficción, ¿verdad? En realidad, es el nuevo juego ...

  4. Gripe de temporada, gripe aviar, gripe

    E-print Network

    actualidad, hay preocupación entre los funcionarios de salud pública de Estados Unidos ante la posibilidad de sistema de salud estaría sobrecargado y sólo podría atender a los enfermos más graves, las familias

  5. PERSONAL ACADMICO Y TEMAS DE INVESTIGACIN

    E-print Network

    : Salud, nutrición y comportamiento materno-infantil y preescolar en relación al entorno ecológico. Perfil relación con procesos socioambientales. Desarrollo de un sistema de información geográfica en salud. lola

  6. Comunicado de Reportes, Publicacin o Radiodifusin Nombre del Paciente________________________________________ Fecha de Nacimiento ____________

    E-print Network

    Illinois at Chicago, University of

    Illinois y el Sistema de Ciencias de la Salud (UI Health), la ley requiere que distribuya, comparta; publique información de salud ­especificada en #2- que pueda, televisión, radio, Internet y medios sociales ("Reporteros"). 2. Información de Salud

  7. Captulo 1 Introduccin Pgina 1 de 2

    E-print Network

    inglés: Standart Operating Procedures) así como un plan de control de calidad apropiado. Estas no son las sistema de solución de dióxido de carbono en el agua de mar ha sido dado (Capítulo 2) junto a los valores

  8. Escuela Tcnica Superior de Ingeniera Universidad de Sevilla

    E-print Network

    Bilbao Arrese, Jesús Mario

    agua en la tabla (identificadas con el nombre concreto de cada asignatura) son asignaturas obligatorias Gestión de la calidad Sistemas de información Seguridad laboral e industrial Métodos cuantitativos de

  9. Curriculum Vit Horacio Saggion

    E-print Network

    Saggion, Horacio

    -1988. Thesis Director, Lic. Jose Alvarez. Bachelor's Thesis: "Un sistema de texto a habla para el espa: Prof. Lic. Alejandro Raiter and Prof. Lic. Jose Alvarez. 1995-1996: Assistant Professor, full time

  10. Una Propuesta para la Evaluacin de Procesos de Colaboracin en Ambientes de Aprendizaje Colaborativo

    E-print Network

    Guerrero, Luis

    evaluar la presencia de ciertos indicadores de colaboración. Se muestra un mecanismo llamado redes de@ing.puc.cl ¤ Depto. de Sistemas de la Facultad de Ingeniería Electrónica y Telecomunicaciones, Universidad del Cauca

  11. A N U A R I O C I N V E S T A V 463 MECATRNICA

    E-print Network

    telecomunicaciones. Sistema funcional de redes de telecomunicaciones. Metodologías modernas de educación a base de Electrónico Computarizado de las Redes de Drenaje y Agua Potable de la Ciudad de México del Gobierno del

  12. ltima modificacin: 29-04-2014 11673 -TELFIB -Telecomunicacin por Fibra ptica

    E-print Network

    Politècnica de Catalunya, Universitat

    de los componentes de las redes de transporte ópticas, así como su realización. También estudiarán submarinos, así como las arquitecturas de redes ópticas más relevantes: acceso, área metropolitana (MAN previas Comunicaciones ópticas. Sistemas de Telecomunicaciones. Requisitos #12;Última modificación: 29

  13. SECCIN DE COMUNICACIONES Personal acadmico y temas de investigacin

    E-print Network

    ) Cinvestav. Temas de investigación: Redes de computadoras, interconexión de redes y protocolos para Ciencias (1984) Instituto de Telecomunicaciones de Moscú, Rusia. Temas de investigación: Radiocomunicación y del Tecnológico de Massachusetts. Temas de investigación: Diseño de sistemas de telecomunicaciones

  14. Calcolo Numerico e Programmazione

    E-print Network

    Guerrini, Carla

    ' utenti condividono le stesse risorse hardware (workstation, mainframe, PC). In questo caso il SO nasconde. #12;Calcolo Numerico e Programmazione IL sistema operativo (VI) Per I mainframe: Sistemi proprietari

  15. Nuevas oportunidades de inmunoterapia dirigida

    Cancer.gov

    Un equipo de investigadores del NCI ha informado que varios tipos de cánceres gastrointestinales tienen mutaciones específicas al tumor que pueden ser reconocidas por el sistema inmunitario, lo que ofrece una posible oportunidad terapéutica para pacientes

  16. BOLETN OFICIAL DEL ESTADO Nm. 295 Martes 10 de diciembre de 2013 Sec. I. Pg. 97858

    E-print Network

    : Que las Cortes Generales han aprobado y Yo vengo en sancionar la siguiente ley orgánica. PREÁMBULO I herramientas de aprendizaje que capacitan a una persona para cumplir con éxito sus objetivos. Solo un sistema

  17. LA ASAMBLEA NACIONAL DE LA REPBLICA BOLIVARIANA DE VENEZUELA

    E-print Network

    Vásquez, Carlos

    LA ASAMBLEA NACIONAL DE LA REP�BLICA BOLIVARIANA DE VENEZUELA DECRETA la siguiente, LEY ORGÁNICA DE organizativas y de funcionamiento del Sistema Educativo de la República Bolivariana de Venezuela. Ámbito de

  18. Modelización de las transformaciones de fase en calentamiento continuo de aceros con microestructura inicial de ferrita, perlita y ferrita-perlita

    E-print Network

    Garcia Caballero, Francisca

    garantizan que ninguna transformación tiene lugar entre la temperatura de austenización y la temperatura del isotérmico y medir el tiempo mínimo necesario para transformar completamente la austenita a dicha temperatura. Este equipo está dotado de sistemas de...

  19. DEPARTAMENTO DE QUMICA Personal acadmico y temas de investigacin

    E-print Network

    no lineales en sistemas pequeños y grandes. Participación en el desarrollo del programa deMon (http://www.demon-software.com) probando y aplicando el nuevo código deMon 2002. pcalamin@mail.cinvestav.mx Rosalinda Contreras Theurel

  20. MODELAGEM DE CHEGADAS EM FILAS GI[X]/M/C/K VIA NCLEO-ESTIMADORES

    E-print Network

    Cruz, Frederico

    flexibilidade para lidar com praticamente qualquer conjunto de dados. Existe uma extensa literatura discutindo revisão da literatura sobre sistemas de filas e núcleo-estimadores. Apresentamos então resultados

  1. Protocolo Tolerante a Faltas Bizantinas para Bases de Dados Transacionais

    E-print Network

    Correia, Miguel

    ¸~oes ´e um problema bastante discutido na literatura, onde ele ´e referenciado como confirmac¸~ao at¸~ao de novos protocolos para sistemas confi´aveis. Na literatura, ´e encontrado um vasto conjunto de

  2. DEPARTAMENTO DE FISIOLOGA, BIOFSICA Y NEUROCIENCIAS

    E-print Network

    experimentales: registros extra e intra- celulares [microelectrodos convencionales y de microáreas de membrana) Cinvestav. Temas de investigación: Neurofarmacología celular y molecular. Función del sistema hista Celular y Molecular de Membranas Epiteliales. Contactos intercelulares, Canales iónicos. Mecanismos de

  3. UNIVERSIDAD SIMON BOLIVAR SEDE DEL LITORAL

    E-print Network

    Vásquez, Carlos

    datos, fibras ópticas, Sistemas PABX, Enlaces de microondas, Tecnología satelital y tecnología celular. Utilización del analizador de constelación. Tema N°9. Transmisión celular móvil GSM Estudio de herramientas de

  4. Informatica Grafica I Marco Gribaudo

    E-print Network

    Gribaudo, Marco

    vengono modificati i filmati. Macromedia Flash MX La parte superiore mostra il menu e la barra degli strumenti di sistema: nuovo, salva, carica... Macromedia Flash MX La barra degli strumenti di disegno e

  5. ARQUITECTURA PARA LA DISTRIBUCIN DE DOCUMENTOS

    E-print Network

    Navarro Moldes, Leandro

    T E S I S ARQUITECTURA PARA LA DISTRIBUCIÓN DE DOCUMENTOS EN UN SISTEMA DISTRIBUIDO A GRAN ESCALA: ARQUITECTURA Y TECNOLOGÍA DE COMPUTADORES BARCELONA, OCTUBRE DE 2002 #12;Dr. President Dr. Secretari Dr. Vocal

  6. Revista de la Sociedad Chilena de Ciencia de la Computaci'on 1,1 (1996) 3144 31 Optimizaci'on Sem'antica de Consultas: Un Caso

    E-print Network

    Bertossi, Leopoldo

    1996-01-01

    transformaci'on sint'actica, adem'as, de informaci'on estad'istica y el uso de las estructuras de datos. Finalmente, en la secci'on 6, se extrae algunas conclusiones. 2. El Problema El Sistema de Estad'isticas es obtener informaci'on estad'istica acerca de estas prestaciones. El n'ucleo del Sistema de Estad'istica lo

  7. Mec^anica Estatistica Lista 3 1 Deduza a ocupac~ao media de niveis

    E-print Network

    Levin, Yan

    Mec^anica Estat´istica ­ Lista 3 1 Deduza a ocupa¸c~ao m´edia de n´iveis com energia num sistema dividir N f´ermions entre V n´iveis de energia, sendo que a degeneresc^encia de cada n´ivel ´e gi e energia j num sistema de b´osons livres usando o ensemble microcan^onico. Dica: de quantos jeitos

  8. MAC-212 --Laboratorio de Computac~ao Exercicio Programa 2: Simulac~ao a Eventos Discretos

    E-print Network

    Reverbel, Francisco

    cada tarefa, s~ao dados: · o tempo de chegada da tarefa · a dura¸c~ao da tarefa. O sistema simulado. A dura¸c~ao de uma tarefa ´e o tempo que o sistema efetivamente leva para executar essa tarefa. Ela n~ao inclui o tempo que a tarefa fica aguardando sua execu¸c~ao. Seu programa simular´a o comportamento do

  9. MAC212 ---Laboratorio de Computacao Exerccio Programa 2: Simulacao a Eventos Discretos

    E-print Network

    Reverbel, Francisco

    cada tarefa, sâ?ao dados: . o tempo de chegada da tarefa . a duraâ?ºcâ?ao da tarefa. O sistema simulado . A duraâ?ºcâ?ao de uma tarefa â??e o tempo que o sistema efetivamente leva para executar essa tarefa. Ela nâ?ao inclui o tempo que a tarefa fica aguardando sua execuâ?ºcâ?ao. Seu programa simularâ??a o comportamento do

  10. Recherche de production électrofaible supersymétrique dans des cascades de désintégration contenant un boson de Higgs avec le détecteur ATLAS au LHC

    E-print Network

    Ughetto, Michael; Muanza, Steve; Moultaka, Gilbert; Kneur, Jean-Loïc

    Ce début de XXIème siècle marque le commencement d’une nouvelle ère pour la physique des particules. Avec le démarrage du LHC en 2009, l’échelle du téra-electronvolt peut être sondée directement. Cette échelle est particulièrement importante pour la physique des particules dont les principales théories attendent de nouveaux phénomènes à cette échelle. Mais avant de découvrir cette nouvelle physique, le LHC a d’ores et déjà permis de découvrir en 2012 le boson de Brout-Englert-Higgs, dernière particule qui restait à observer dans le Modèle Standard. Cette première découverte majeure est à la fois un succès pour le Modèle Standard, mais renforce aussi les principales motivations des théories au delà du Modèle Standard, avec au premier rang les théories supersymétriques. Cette thèse qui s’est déroulée entre 2011 et 2014 couvre à la fois la phénoménologie des théories supersymétriques et la recherche expérimentale des signaux prédits par ces théories, sous la su...

  11. La prévention des infections par le virus respiratoire syncytial

    PubMed Central

    Robinson, JL

    2011-01-01

    RÉSUMÉ L’infection par le virus respiratoire syncytial (VRS) est la principale cause d’infections des voies respiratoires inférieures chez les jeunes enfants. Le palivizumab, un anticorps monoclonal anti-VRS, réduit le taux d’hospitalisation des enfants à haut risque mais est très coûteux. Le présent document de principes remplace les trois précédents documents de principes de la Société canadienne de pédiatrie sur le sujet et est mis à jour principalement pour traiter des récentes modifications aux lignes directrices de l’American Academy of Pediatrics dans le contexte canadien. Il contient une analyse des publications ainsi que des recommandations au sujet de l’utilisation du palivizumab chez les enfants à haut risque

  12. L'astronomie dans le monde

    NASA Astrophysics Data System (ADS)

    Manfroid, J.

    2014-04-01

    Cartographie d’une naine brune; 2006DP14; Anatomie d’un astéroïde; L’astéroïde P/2013 R3; Formation des planètes; Planètes Kepler; Bêta Pictoris; Cratère Mojave; Les astéroïdes de la ceinture principale; Planète X; Mercure et la gravitation; Gloire sur Vénus; Galaxies elliptiques massives; Cas A; SN 2014J et les supernovae Ia; Le Grand Nuage de Magellan; Nébuleuse d’Andromède; ESO 137-001

  13. El teatro brasileño en transición: Entrevista a Yan Michalski

    E-print Network

    Espinosa Domí nguez, Carlos

    1982-10-01

    teatro brasileño en transición: Entrevista a Yan Michalski Carlos Espinosa Domínguez Aunque Yan Michalski (Czestochowa, 1932) nació en Polonia, su labor artística la ha desarrollado en la patria de Tiradentes, cuya nacionalidad adoptó en 1956. Es... de los principales autores de la resistencia: Leilah Assunção, Consuelo de Castro, Plínio Marcos, Gianfrancesco Guarnieri, Mareio Souza . . . Una excepción ha sido la de Alfredo Dias Gomes, quien estrenó Campeones del mundo, donde se plantea el...

  14. Une cause rare du choc septique chez le diabétique: la cystite emphysémateuse compliquée d'une rupture vésicale

    PubMed Central

    Shimi, Abdelkarim; Boumedian, Abderrahman; Elbakouri, Nabil; Derkaoui, Ali; Khatouf, Mohammed

    2015-01-01

    La cystite emphysémateuse est une affection rare rencontrée principalement chez les patients diabétiques mal équilibrés. Elle se caractérise par la présence de l'air dans la paroi et/ou la lumière vesicale. La tomodensitométrie abdomino-pelvienne reste l'examen clé pour confirmer le diagnostic. Nous rapportons l'observation d'une patiente diabétique ayant présentée une cystite emphysémateuse favorisée par un diabète déséquilibré et compliquée d'une rupture vésicale intrapéritonéale avec évolution défavorable. PMID:26301019

  15. Rapport de stage DEA Algorithmique 2003/2004

    E-print Network

    Doyen, Laurent

    décidables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Le modèle d'Alur et Dill manipulé de façon explicite. Cette avancée est principalement due aux travaux d'Alur et Dill [AD90], qui zéro. Le résultat d'Alur et Dill est un algorithme qui répond à la question : #16;le langage reco

  16. L'Aventure du LHC

    ScienceCinema

    None

    2011-10-06

    Cette présentation s?adressera principalement aux personnes qui ont construit le LHC. La construction du LHC fut longue et difficile. De nombreux problèmes sont apparus en cours de route. Tous ont été résolus grâce au dévouement et à l?engagement du personnel et des collaborateurs. Je reviendrai sur les coups durs et les réussites qui ont marqués ces 15 dernières années et je vous montrerai combien cette machine, le fruit de vos efforts, est extraordinaire.

  17. Curvas de rotación - Atlas

    NASA Astrophysics Data System (ADS)

    Martín, C.

    Se está elaborando un atlas con imágenes y datos publicados en las revistas principales por diversos autores, de las curvas de rotación en galaxias observadas en diferentes frecuencias. Las curvas de rotación constituyen uno de los medios más apropiados para el estudio de las diferencias cinemáticas entre los diversos componentes y quizá la mejor prueba observacional de la existencia de materia oscura en el universo. Este atlas tiene el propósito de servir como una guía cualitativa y cuantitativa para estos estudios.

  18. Formación y evolución de planetas gigantes

    NASA Astrophysics Data System (ADS)

    Benvenuto, O. G.; Brunini, A.

    Presentamos el estado actual del trabajo que estamos realizando en el estudio de la formación de planetas gigantes. Detallamos los algoritmos numéricos necesarios para realizar este tipo de cálculo. Presentamos algunos resultados de la formación de objetos con masas de hasta una docena de veces la del planeta Júpiter, resaltando las principales caracteríticas. Finalmente detallamos los problemas que pensamos abordar en un futuro cercano en este tema de investigación.

  19. La para-osteo-arthropathie neurogene dans le syndrome de guillain barre: complication rare (à propos d'un cas et revue de la littérature)

    PubMed Central

    Abid, Hatim; El Idrissi, Mohamed; Shimi, Mohamed; El Ibrahimi, Abdelhalim; El Mrini, Abdelmajid

    2015-01-01

    Les para-ostéo-arthropathies neurogènes sont des complications classiques des affections neurologiques centrales, surtout dans les contextes traumatiques. Elles surviennent principalement au voisinage des grosses articulations. Leur physiopathologie exacte reste inconnue malgré de très nombreux travaux et cas rapportés. Il semble que leur survenue au décours d'affections neurologiques périphériques soit exceptionnelle. Nous présentons le cas d'une para-ostéo-arthropathie de hanche bilatérale compliquant un syndrome de Guillain-Barré. PMID:26161168

  20. Probabilit'es et applications `a l'algorithmique TD num'ero 8 : s'eries g'en'eratrices

    E-print Network

    Portier, Natacha

    : rappels math'ematiques Qu'est-ce qu'une s'erie enti`ere ? Qu'est-ce que le rayon de convergence ? Que rayon de convergence ? Quand et comment calculer la d'eriv'ee d'une s'erie enti`ere ? Quel est son rayon de convergence* * ? Question 2 : principale d'efinition Soit X une variable al'eatoire `a

  1. MM Multivariee Morphologie Mathematique Multivariee

    E-print Network

    Lefèvre, Sébastien

    MM Multivari´ee Morphologie Math´ematique Multivari´ee S´ebastien Lef`evre et Erchan Aptoula-ISIS #12;MM Multivari´ee Plan de la pr´esentation 1 Introduction Morphologie Math´ematique Relations d la pr´esentation 1 Introduction Morphologie Math´ematique Relations d'ordre 2 Principales approches

  2. ENSEEIHT --3`eme Annee Informatique & Mathematiques Appliquees Stages Mathinfo

    E-print Network

    Dobigeon, Nicolas

    ENSEEIHT -- 3`eme Ann´ee Informatique & Math´ematiques Appliqu´ees Stages Math­info 2007­2008 Stage- seignants-chercheurs `a l'ENSEEIHT, en collaboration avec l'Universit´e de Bourgogne (Institut de math´ematiques EADS-Astrium. Les principales difficult´es sur le plan math´ematique et num´erique proviennent du

  3. Educación no formal

    NASA Astrophysics Data System (ADS)

    Tignanelli, H.

    Se comentan en esta comunicación, las principales contribuciones realizadas en el campo de la educación en astronomía en los niveles primario, secundario y terciario, como punto de partida para la discusión de la actual inserción de los contenidos astronómicos en los nuevos contenidos curriculares de la EGB - Educación General Básica- y Polimodal, de la Reforma Educativa. En particular, se discuten los alcances de la educación formal y no formal, su importancia para la capacitación de profesores y maestros, y perspectivas a futuro.

  4. RUEEDMONDLABBE RUE RENE DESCARTES

    E-print Network

    Franchi, Jacques

    'Université CAMPUS DE L'ESPLANADE Juin 2001 34. Institut Le Bel - Université Louis Pasteur (ULP) (présidence, accueil'Université Louis Pasteur Bâtiments interuniversitaires Autres bâtiments universitaires Bâtiments du CNRS I E C point de l'Esplanade 58 Rue Louis Arbogast 33 Entrées principales (Source : Université Louis Pasteur

  5. Induction of potent cellular immune response in mice by hepatitis C virus NS3 protein with double-stranded RNA

    PubMed Central

    Jin, Bo; Wang, Richard Y; Qiu, Qi; Sugauchi, Fuminaka; Grandinetti, Teresa; Alter, Harvey J; Shih, J Wai-Kuo

    2007-01-01

    Double-stranded RNA is produced during virus replication and, together with the viral antigen, is responsible for inducing host antivirus immunity. The hepatitis C virus (HCV) non-structural protein-3 (NS3) has been implicated in the immune evasion of HCV, and is one of the prime targets for inducing immunity against HCV infection. Mice were immunized with recombinant NS3 protein (rNS3) and poly (I:C) emulsified in Montanide ISA 720 (M720). Cytokine production was assayed by enzyme-linked immunospot assay, and CD4+ IFN-?+ T helper (Th) cells or CD8+ IFN-?+ cytotoxic T lymphocytes were detected by flow cytometry. Anti-NS3 titre and immunoglobulin G2a (IgG2a) and IgG1 levels were monitored by enzyme-linked immunosorbent assay. Administration of rNS3 formulated in poly (I:C) and M720 induced anti-NS3 titres with a predominantly IgG2a isotype comparable to those induced by rNS3 in CpG-ODN and M720. The cytokine profiles showed that this formulation induced a Th1-biased immune response with several-fold more interferon-? (IFN-?)-producing cells than interleukin-4-producing cells. In contrast, rNS3 in M720 induced a Th2-biased immune response. The frequency of IFN-?-producing CD4+ and CD8+ cells induced by rNS3 in poly (I:C) and M720 was significantly higher than that induced by rNS3, rNS3 in M720, or rNS3 in poly (I:C), and was comparable to that induced by rNS3 in CpG-ODN with M720. The antigen-specific CD8+ T-cell immune response persisted for up to 7 months after immunization. In conclusion, poly (I:C) with rNS3 in M720 can elicit a strong and persistent Th1-biased immune response and a cytotoxic T-lymphocyte response through cross-priming in mice. This study highlighted a promising formulation for inducing an efficient cellular immune response against HCV that has potential for HCV vaccine development. PMID:17451465

  6. Network Penetration Testing and Research

    NASA Technical Reports Server (NTRS)

    Murphy, Brandon F.

    2013-01-01

    This paper will focus the on research and testing done on penetrating a network for security purposes. This research will provide the IT security office new methods of attacks across and against a company's network as well as introduce them to new platforms and software that can be used to better assist with protecting against such attacks. Throughout this paper testing and research has been done on two different Linux based operating systems, for attacking and compromising a Windows based host computer. Backtrack 5 and BlackBuntu (Linux based penetration testing operating systems) are two different "attacker'' computers that will attempt to plant viruses and or NASA USRP - Internship Final Report exploits on a host Windows 7 operating system, as well as try to retrieve information from the host. On each Linux OS (Backtrack 5 and BlackBuntu) there is penetration testing software which provides the necessary tools to create exploits that can compromise a windows system as well as other operating systems. This paper will focus on two main methods of deploying exploits 1 onto a host computer in order to retrieve information from a compromised system. One method of deployment for an exploit that was tested is known as a "social engineering" exploit. This type of method requires interaction from unsuspecting user. With this user interaction, a deployed exploit may allow a malicious user to gain access to the unsuspecting user's computer as well as the network that such computer is connected to. Due to more advance security setting and antivirus protection and detection, this method is easily identified and defended against. The second method of exploit deployment is the method mainly focused upon within this paper. This method required extensive research on the best way to compromise a security enabled protected network. Once a network has been compromised, then any and all devices connected to such network has the potential to be compromised as well. With a compromised network, computers and devices can be penetrated through deployed exploits. This paper will illustrate the research done to test ability to penetrate a network without user interaction, in order to retrieve personal information from a targeted host.

  7. K-bZIP Mediated SUMO-2/3 Specific Modification on the KSHV Genome Negatively Regulates Lytic Gene Expression and Viral Reactivation

    PubMed Central

    Yang, Wan-Shan; Hsu, Hung-Wei; Campbell, Mel; Cheng, Chia-Yang; Chang, Pei-Ching

    2015-01-01

    SUMOylation is associated with epigenetic regulation of chromatin structure and transcription. Epigenetic modifications of herpesviral genomes accompany the transcriptional switch of latent and lytic genes during the virus life cycle. Here, we report a genome-wide comparison of SUMO paralog modification on the KSHV genome. Using chromatin immunoprecipitation in conjunction with high-throughput sequencing, our study revealed highly distinct landscape changes of SUMO paralog genomic modifications associated with KSHV reactivation. A rapid and widespread deposition of SUMO-2/3, compared with SUMO-1, modification across the KSHV genome upon reactivation was observed. Interestingly, SUMO-2/3 enrichment was inversely correlated with H3K9me3 mark after reactivation, indicating that SUMO-2/3 may be responsible for regulating the expression of viral genes located in low heterochromatin regions during viral reactivation. RNA-sequencing analysis showed that the SUMO-2/3 enrichment pattern positively correlated with KSHV gene expression profiles. Activation of KSHV lytic genes located in regions with high SUMO-2/3 enrichment was enhanced by SUMO-2/3 knockdown. These findings suggest that SUMO-2/3 viral chromatin modification contributes to the diminution of viral gene expression during reactivation. Our previous study identified a SUMO-2/3-specific viral E3 ligase, K-bZIP, suggesting a potential role of this enzyme in regulating SUMO-2/3 enrichment and viral gene repression. Consistent with this prediction, higher K-bZIP binding on SUMO-2/3 enrichment region during reactivation was observed. Moreover, a K-bZIP SUMO E3 ligase dead mutant, K-bZIP-L75A, in the viral context, showed no SUMO-2/3 enrichment on viral chromatin and higher expression of viral genes located in SUMO-2/3 enriched regions during reactivation. Importantly, virus production significantly increased in both SUMO-2/3 knockdown and KSHV K-bZIP-L75A mutant cells. These results indicate that SUMO-2/3 modification of viral chromatin may function to counteract KSHV reactivation. As induction of herpesvirus reactivation may activate cellular antiviral regimes, our results suggest that development of viral SUMO E3 ligase specific inhibitors may be an avenue for anti-virus therapy. PMID:26197391

  8. Texas AgrAbility Project 

    E-print Network

    Smith, David

    2005-08-16

    parte del Proyecto de Ley para Fincas de 1990. de Texas AgrAbility Producido por AgriLife Communications, El Sistema Texas A&M Las publicaciones de Texas AgriLife Extension Service se pueden encontrar en Internet en: http://AgriLifebookstore.org Los... Agricultura y Econom?a del Hogar, Leyes del Congreso del 8 de mayo de 1914 con sus reformas y del 30 de junio de 1914 junto con el Departamento de Agricultura de los Estados Unidos, Edward G. Smith, Director, Texas AgriLife Extension Service, Sistema Texas A&M. ...

  9. Drinking Water Problems: Iron and Manganese (Spanish) 

    E-print Network

    Dozier, Monty; McFarland, Mark L.

    2004-02-20

    tratadas con un sistema de aireaci?n/fil- traci?n. En este sistema el aire es llevado hacia adentro y mezclado con la corriente de agua fluyente. El agua saturada de aire entra despu?s en un recipiente precipitador/aireador, donde el aire se separa del... el filtro. Oxidaci?n qu?mica Niveles altos de hierro y manganeso disuelto u oxi- dado (combinaciones combinadas de hasta 25 mg/L) pueden ser tratadas por oxidaci?n qu?mica. Este m?todo es particularmente de ayuda cuando el hier- ro es combinado con...

  10. Disinfecting Water Wells by Shock Chlorination (Spanish) 

    E-print Network

    Dozier, Monty; McFarland, Mark L.

    2007-10-05

    hipercloraci?n, desconecte o excluya temporalmente los filtros de agua potable como son filtros de carb?n y sistemas de osmosis inversa. Durante el proceso de desinfecci?n, el agua del sistema no resulta adecuada para consumo; no permita que personas o... equivalente al doble del valor de la profundidad para el di?metro del entubado del pozo (ver Tabla 1 y 2). Por ejemplo, Desinfecci?n de pozos de agua por hipercloraci?n un di?metro de entubado de 8 pulgadas, si desconoce la profundidad del agua de pozo...

  11. On-Site Wastewater Treatment Systems: Pump Tank (Spanish) 

    E-print Network

    Lesikar, Bruce J.; Enciso, Juan

    2000-08-29

    abren los circuitos el?ctricos con interruptores mec?nicos o de l?quido de mercurio. Cada flotador se clasifica de acuerdo a la corriente el?ctrica que puede enviar al interruptor. Si la bomba usa m?s corriente de la que el flotador puede cargar, seg... flotador interruptor no logra cortar la corriente de la bomba cuando el tanque no tiene suficiente agua. Este flotador se utiliza cuando un tablero de control opera el sistema. El tanque bomba recolecta las aguas negras hasta que se dosifiquen al sistema de...

  12. On-Site Wastewater Treatment Systems: Septic Tank/Soil Absorption Field (Spanish) 

    E-print Network

    Lesikar, Bruce J.; Enciso, Juan

    2000-10-13

    no pueden aceptar aguas negras. Si siembra c?sped de clima fr?o sobre el campo de absorci?n en el invierno ayudar? a eliminar el agua de la tierra y a mantener el sistema funcionando apropiadamente. Tabla 2. N?mero de a?os que se recomienda entre cada bombeo... correr por el suelo que no est? saturado para que los microbios que se encuentran all? y en la capa puedan ingerir los desperdicios y los nutrientes del efluente. El c?sped que cubre el sistema de campo de absorci?n tambi?n usa los nutrientes y el agua...

  13. Voting Systems for Environmental Decisions

    PubMed Central

    BURGMAN, MARK A; REGAN, HELEN M; MAGUIRE, LYNN A; COLYVAN, MARK; JUSTUS, JAMES; MARTIN, TARA G; ROTHLEY, KRIS

    2014-01-01

    Voting systems aggregate preferences efficiently and are often used for deciding conservation priorities. Desirable characteristics of voting systems include transitivity, completeness, and Pareto optimality, among others. Voting systems that are common and potentially useful for environmental decision making include simple majority, approval, and preferential voting. Unfortunately, no voting system can guarantee an outcome, while also satisfying a range of very reasonable performance criteria. Furthermore, voting methods may be manipulated by decision makers and strategic voters if they have knowledge of the voting patterns and alliances of others in the voting populations. The difficult properties of voting systems arise in routine decision making when there are multiple criteria and management alternatives. Because each method has flaws, we do not endorse one method. Instead, we urge organizers to be transparent about the properties of proposed voting systems and to offer participants the opportunity to approve the voting system as part of the ground rules for operation of a group. Sistemas de Votación para Decisiones Ambientales Resumen Los sistemas de votación agregan preferencias eficientemente y muy seguido se usan para decidir prioridades de conservación. Las características deseables de un sistema de votación incluyen la transitividad, lo completo que sean y la optimalidad de Pareto, entre otras. Los sistemas de votación que son comunes y potencialmente útiles para la toma de decisiones ambientales incluyen simple mayoría, aprobación y votación preferencial. Desafortunadamente, ningún sistema de votación puede garantizar un resultado y a la vez satisfacer un rango de criterios de desempeño muy razonable. Además, los métodos de votación pueden manipularse por los que toman las decisiones y votantes estratégicos si tienen el conocimiento de los patrones de votación y de las alianzas entre miembros dentro de las poblaciones votantes. Las propiedades difíciles de los sistemas de votación sobresalen en las tomas de decisiones rutinarias cuando hay criterios múltiples y alternativas de manejo. Ya que ambos métodos tienen fallas, no apoyamos a uno sobre el otro. En lugar de esto le pedimos urgentemente a los organizadores ser transparentes con respecto a las propiedades de los sistemas de votación y ofrecer a los participantes la oportunidad de aprobar el sistema de votación como parte de las reglas básicas para la operación de un grupo. PMID:24423154

  14. L'effet Casimir : théorie et expériences

    NASA Astrophysics Data System (ADS)

    Lambrecht, A.; Genet, C.; Intravaia, F.; Reynaud, S.

    2004-11-01

    L'existence de fluctuations irréductibles de champ dans le vide est une prédiction importante de la théorie quantique. Ces fluctuations ont de nombreuses conséquences observables comme l'effet Casimir, qui est maintenant mesuré avec une bonne précision et un bon accord avec la théorie, pourvu que celle-ci tienne compte des différences entre les expériences rélles et la situation idéale considérée par H.G.B. Casimir. Nous présenterons quelqu'unes des expériences récentes et discuterons les principales corrections à la force de Casimir liées à la situation expérimentale.

  15. Los Suelos y la agricultura en los municipios de San Cristobal y Los Palacios 

    E-print Network

    Banco de Fomento Agrí cola e Industrial de Cuba. Division Agrí cola. Departamento de Diversificací on

    1959-01-01

    stream_source_info pdf_1485.pdf.txt stream_content_type text/plain stream_size 19781 Content-Encoding ISO-8859-1 stream_name pdf_1485.pdf.txt Content-Type text/plain; charset=ISO-8859-1 Una de las principales prioridades... en el ade- cuado manejo de los pastizales es el establec- imiento del balance entre el n?mero de ani- males en pastoreo y la producci?n de forraje. Es necesario tener un balance entre la carga animal y la utilizaci?n del pastizal para lograr una con...

  16. Que peut-on voir avec des neutrons? Une introduction pour des non spécialistes

    NASA Astrophysics Data System (ADS)

    Schweizer, J.

    2005-11-01

    Le neutron est une particule élémentaire qui a été découverte en 1932 par James Chadwick. Ses caractéristiques principales sont résumées dans le tableau I. Il a été utilisé pour la première fois par Clifford Shull en 1946 comme outil pour des expériences de diffusion. Cette technique s'est depuis constamment développée pour concerner tous les aspects de la matière condensée: physique, chimie, matériaux, biologie. Il s'agit d'un outil tout à fait exceptionnel car le neutron possède des propriétés uniques et particulièrement adaptées pour ces études.

  17. Les rivie?res et les sources de la Plaine du Cul-de-Sac: extrait du rapport sur les eaux souterraines de la Plaine du Cul-de-Sac

    USGS Publications Warehouse

    Taylor, George C., Jr.; Lemoine, Rémy C.

    1949-01-01

    Les principales rivières de la Plaine du Cul-de-Sac, la Rivière Grise ou Grande Rivière du Cul-de-Sac et la Rivière Blanche, prennent naissance sur le flanc Nord du Massif de la Selle à des altitudes de 1,300 à 1,800 mètres au dessus du niveau de la mer. Elles coulent à l’amont à travers des gorges profondes et sont éloignées de 9 Kms. dans la partie central de la bordure Sud de la plaine.

  18. Micro-usinage nanoseconde UV ou femtoseconde: état de l'art et comparaison

    NASA Astrophysics Data System (ADS)

    Lopez, J.; Salin, F.; Hernandez, M.-C.; Faucon, M.

    2003-06-01

    Jusqu'ici les applications liées au micro-usinage étaient principalement réservées aux sources de types Nd :YAG, pour les matériaux métalliques, ou Excimère, pour les polymères. Les avancées récentes dans le domaine des lasers à impulsions ultra-brèves (<10 ps), en terme de performances, fiabilité et coût, permettent aujourd'hui d'envisager des applications industrielles dans le domaine du niicro-usinage. Ces applications tirent profit de la possibilité d'usiner tout type matériau sans diffusion de chaleur hors du volume irradié. Après avoir rappeler les spécificités des interactions avec ces différents types de laser, nous présenterons quelques exemples de réalisations par rayonnement laser UV ou fenitoseconde.

  19. ((page de garde)) Universit de Montral

    E-print Network

    Keller, Rudolf K.

    modélisation des logiciels déjà implantés. L'incompatibilité des outils rend difficile ou impossible la avec ceux de développement. Vu l'imposante présence des outils et des modèles basés sur UML dans la pour les logiciels déjà en place. La faiblesse principale d'UML vis-à-vis les logiciels implantés est

  20. Kyste dermoïde géant de la paroi abdominale: une observation rare

    PubMed Central

    Yaka, Mbarek; Ehirchiou, Abdelkader; Alkandry, Sifeddine; Zentar, Aziz

    2015-01-01

    Les kystes dermoïdes sont des lésions bénignes fréquentes. Ils peuvent être volumineux et entrainer une destruction des tissus avoisinants surtout au niveau du crâne. Ces kystes dermoïdes sont le plus souvent de localisation ovarienne ou testiculaire mais d'autres localisations, principalement axiales, sont décrites. Le kyste dermoïde de la paroi abdominale est rare. Quant aux volumineux kystes, ils sont encore plus rares. La possibilité de leur dégénérescence impose une exérèse chirurgicale. Nous rapportons un cas rare de kyste dermoïde géant de la paroi abdominale antérolatérale, qui peut poser un problème de diagnostic différentiel avec le un kyste hydatique, surtout dans un pays endémique comme le Maroc. PMID:26327968

  1. Réseaux résonnants pour la compression d'impulsions laser femtosecondes

    NASA Astrophysics Data System (ADS)

    Trisorio, A.; Flury, M.; Lyndin, N.; Tishchenko, A. V.; Tonchev, S.

    2005-06-01

    La compression d'impulsions laser femtosecondes est en général réalisée par une paire de réseaux métalliques moulés dans un film de résine. Ces derniers ont des performances intrinsèquement limitées en termes d'efficacité et de tenue au flux. Ceci est dû principalement à la présence du métal à la surface du réseau. Les réseaux résonnants démontrant un effet de diffraction de 100% d'efficacité pour l'ordre 1 sont une alternative intéressante. Deux types de réseaux hautes performances ont été modélisés. La configuration ainsi que les performances théoriques des deux systèmes modélisés sont présentées.

  2. Transcendental Meditation

    ScienceCinema

    None

    2011-04-25

    K.Wallace, qui vient des Etats Unis, parle des effects physiologiques de la méditation transcendantale. Il a fait son bachelor en physique à l'Université de Los Angeles et son doctorat en physiologie aussi à Los Angeles, mais à l'Institut de Recherche sur le cerveau. Il travaille maintenat à Harvard Medical School ou il continue des recherches biochimiques et physiologiques sur l'application médicale de la méditation transcendantale. Il s'occupe principalement des maladies cardiaques et de hypertension artérielle.

  3. Transcendental Meditation

    SciTech Connect

    2005-11-29

    K.Wallace, qui vient des Etats Unis, parle des effects physiologiques de la méditation transcendantale. Il a fait son bachelor en physique à l'Université de Los Angeles et son doctorat en physiologie aussi à Los Angeles, mais à l'Institut de Recherche sur le cerveau. Il travaille maintenat à Harvard Medical School ou il continue des recherches biochimiques et physiologiques sur l'application médicale de la méditation transcendantale. Il s'occupe principalement des maladies cardiaques et de hypertension artérielle.

  4. FIS01020 -TERMODIN^AMICA A Lista de problemas 4

    E-print Network

    Arenzon, Jeferson J.

    a equa¸c~ao fundamental na representa¸c~ao de Helmholtz. b) Verifique se a energia livre de Helmholtz ´e´ermica para este sistema. 17. Considere a energia livre de Landau G = 1 2 a2 + 1 4 b4 + 1 6 c6 onde c ´e uma

  5. Lista de Problemas da Area II 1. Modelo de Blume-Capel I (Salinas): Considere um modelo unidimensional

    E-print Network

    Stariolo, Daniel Adrián

    N 2 , u( , )f( )f( ) e S NkB = - f() ln f() respectivamente. Minimizando a energia livre U - TS . 6. Ponto tricrítico (Pathria): Considere um sistema descrito por uma energia livre de Landau da transferência. (b) Calcule expressões para a energia interna e a entropia por spin. (c) Qual o estado

  6. 16 Evento de Iniciao Cientfica da UFPR 16 EVINCI N 000 MODELAGEM E SIMULAO DE MICROPROCESSADORES

    E-print Network

    Hexsel, Roberto A

    , processamento, armazenamento e principalmente energia. Um sistema embarcado deve ser projetado para ser Motorola DSP 56827 disponibilizado como software livre. Este trabalho de iniciação científica foi realizado celular digital por automação" e mostra que a simulação de simuladores utilizando ferramentas livres pode

  7. Constructing a New Vision: Undoing Gender through Secondary Education in Honduras

    ERIC Educational Resources Information Center

    Murphy-Graham, Erin

    2009-01-01

    This article presents results from a qualitative study on how the Honduran secondary education programme, "Sistema de Aprendizaje Tutorial" (SAT), attempts to "undo gender" (Deutsch 2007: 122) by encouraging students to rethink gender relations in their everyday lives in a way that reflects their increased consciousness of gender equality. My…

  8. How Argumentation can Enhance Dialogues in Social Networks

    E-print Network

    McBurney, Peter

    , Vicente BOTTI a , Floriana GRASSO b , Vicente JULIAN a , and Peter MCBURNEY b a Dep. de Sistemas Informáticos y Computación, Univ. Politécnica de Valencia, Spain b Dep. of Computer Science, University Schemes Introduction The current incarnation of the Web as a platform for computing and collaborative in

  9. Converting Mikrokosmos frames into Description Logics P.J. Beltran-Ferruz and P.A. Gonzalez-Calero and P.Gervas

    E-print Network

    ´alez-Calero and P.Gerv´as GAIA - Applied Artificial Intelligence Group Dep. Sistemas Inform´aticos y Programaci into OWL and thus provide a powerful ontology in the formalism of the semantic web. Furthermore benefits. Since DL is the underlying knowl- edge representation approach in the Semantic Web, a big number

  10. How Argumentation can Enhance Dialogues in Social Networks

    E-print Network

    Atkinson, Katie

    , Vicente BOTTI a , Floriana GRASSO b , Vicente JULIAN a , and Peter MCBURNEY b a Dep. de Sistemas Informáticos y Computación, Univ. Politécnica de Valencia, Spain b Dep. of Computer Science, University Introduction The current incarnation of the Web as a platform for computing and collaborative in- teraction

  11. On-Site Wastewater Treatment Systems: Evapotranspiration Bed (Spanish) 

    E-print Network

    Lesikar, Bruce J.; Enciso, Juan

    2002-04-18

    pulgadas de distancia una de la otra y no m?s de 2 pies de las paredes del lecho. La parte superior del tubo de distribuci?n debe estar al ras con la parte superior del material de piedra. Otros tipos de medio, como trozos de llantas, o sistemas de alma...

  12. Interfaces cerebro-mquina, un gran paso hacia la Inteligencia Artificial Jess Corts

    E-print Network

    Cortes, Jesus

    meses. Electrodos de este tipo se han implantado en animales muy diferentes, ratones, monos, e incluso de todos los sistemas cerebro-máquina es la misma. Después de la implantación de electrodos en alguna están implantando bio-electrodos, con lo que se consiguen registros estables incluso durante varios

  13. Casos de Estudo com a Bolsa de Objectos de Aprendizagem: Anlise na Perspectiva da Computao

    E-print Network

    da Silva, Alberto Rodrigues

    propor o sistema BOA (Bolsa de Objectos de Aprendizagem) como uma plataforma de Objectos de Aprendizagem utilizadores, privilegiando uma competitividade saudável e consequente qualidade dos OA submetidos. O BOA popularidade. Por outro lado, os utilizadores são recompensados com créditos sempre que interagem no BOA, quer

  14. CORSO DI LAUREA TRIENNALE IN SCIENZE NATURALI GEOGRAFIA E CARTOGRAFIA

    E-print Network

    temperatura dell'aria, Equatore termico. La pressione atmosferica e i venti. La circolazione generale dell. Cause dinamiche della circolazione atmosferica. L'umidità dell'aria e le precipitazioni. Il tempo radiativo del sistema Terra - atmosfera. La temperatura dell'aria, Equatore termico. La pressione

  15. Capitolato Tecnico Fornitura in opera di attrezzature ed apparati per il

    E-print Network

    Roma "La Sapienza", Università di

    rack con scambiatori di calore aria- acqua; 1.4.2 Fornitura in opera di un chiller; 1.4.3 Fornitura Isola di contenimento e n. 8 armadi rack con scambiatori di calore aria-acqua 2.1.1 Isola di.1.3 Tra gli armadi saranno opportunamente posizionati gli scambiatori di calore aria-acqua con un sistema

  16. UNIVERSIDAD NACIONAL AUTONNOMA DE MXICO PROGRAMA DE POSGRADO EN CIENCIAS DE LA TIERRA

    E-print Network

    Grutter, Michel

    QUÍMICA AMBIENTAL DE SUELOS 87 GEOQUÍMICA 89 QUÍMICA DE LA ATMÓSFERA 92 RIESGOS AMBIENTALES 94 ROCAS TÉCNICAS DE MEDICIÓN DE PARTÍCULAS ATMOSFÉRICAS 147 DEGRADACIÓN Y CONTAMINACIÓN DE SUELOS 149 SISTEMAS DE DEPÓSITOS 167 OBSERVACIÓN, PROCESAMIENTO E INTERPRETACIÓN SISMOLÓGICA 169 SISMOLOGÍA AVANZADA 171 SUELOS

  17. METODOLOGA PARA EL DISEO DE MUESTREO SOCIOAMBIENTAL EN LA CUENCA DEL RO PIEDRAS

    E-print Network

    Gilbes, Fernando

    quebradas en esta red, la variación de usos del suelo alrededor de la red y la diversidad en vegetación, suelos y condiciones geológicas. También, se buscó asegurar que los puntos de muestreo fueran, topografía, suelo, cuenca hidrográfica del Río Piedras y municipios de San Juan y Guaynabo en el sistema de

  18. Introduction to Kalman Filtering A set of two lectures

    E-print Network

    Ribeiro,Isabel

    Introduction to Kalman Filtering A set of two lectures Maria Isabel Ribeiro Associate Professor.Isabel Ribeiro - June.2000 Instituto de Sistemas e Robótica/Instituto Superior Técnico INTRODUCTION TO KALMAN FILTERING · What is a Kalman Filter ? ­ Introduction to the Concept ­ Which is the best estimate ? ­ Basic

  19. Universit degli Studi di Roma "La Sapienza" CF 80209930587 PI 02133771002

    E-print Network

    Di Pillo, Gianni

    Microsoft Exchange Server 2013, di strumenti di collaborazione basati su Google Apps, di sistemi documentali Google Apps), configurazione di un sistema per l'invio di newsletter, installazione e configurazione di Sistemi operativi basati su Microsoft Windows Server 2012, dei sistemi di posta elettronica basati

  20. Transfer^encia de Dados entre Grupos de Processos no Modelo BAR

    E-print Network

    Rodrigues, Luís E.T.

    comportamento de um sistema com n´os Racionais, ´e poss´ivel recorrer `a Teoria de Jogos[16], na qual o conjunto de interac¸c~oes entre n´os ´e visto como um jogo, em que os jogadores correspondem `as entidades e

  1. Corsi di Laurea in Ingegneria Meccanica e Informatica e corsi V.O. Anno Accademico 2013/2014

    E-print Network

    Demeio, Lucio

    cardinali della statica). xO A M B L C K H D y Q T m 3. Scrivere le equazioni di Lagrange per il sistema cardinali della dinamica). #12;Corsi di Laurea in Ingegneria Meccanica e Informatica e corsi V.O. Anno di Fisica Matematica: determinare le configurazioni di equilibrio con le equazioni cardinali della

  2. Equazioni di Eulero del corpo rigido. In questa nota vogliamo scrivere e studiare le equazioni del moto di un corpo

    E-print Network

    Demeio, Lucio

    faremo usando le equazioni cardinali della dinamica per il corpo rigido. Una rotazione stazionaria equazioni cardinali della dinamica per questo sistema sono m a0 = mg (2) K(P0) = M(e) (P0) (3) Ma l massa, quindi M(e) (P0) = 0; inoltre, la prima delle equazioni cardinali descrive semplicemente la

  3. Corsi di Laurea in Ingegneria Meccanica e Informatica e corsi V.O. Anno Accademico 2013/2014

    E-print Network

    Demeio, Lucio

    Matematica: determinare le configurazioni di equilibrio usando le equazioni cardinali della statica). 2 Matematica: scrivere le equazioni del moto usando le equazioni cardinali della dinamica, senza forze viscose equazioni cardinali della statica). 2. Scrivere le equazioni di Lagrange per il sistema dell

  4. 296 PARA SABER, EXPERIMENTARY SIMULAR 4& Aqut comienza una serie que deprincipio busca ser una oportunidad, para saber,

    E-print Network

    Talanquer, Vicente A.

    296 PARA SABER, EXPERIMENTARY SIMULAR 4& Aqut comienza una serie que deprincipio busca ser una- tamiento de las propiedades de respuesta del sistema ante variacionesde los parámetros externos, puede ser transición de fase puede ser concebida como una catástrofe en la que todos los participantes se han puesto de

  5. DOKBOT: UM AVATAR SEMI-AUT^ONOMO PARA APLICAC~OES TELE IMERSIVAS Kayran G. R. S. Domingos

    E-print Network

    Chaimowicz, Luiz

    DOKBOT: UM AVATAR SEMI-AUT^ONOMO PARA APLICA¸C~OES TELE IMERSIVAS Kayran G. R. S. Domingos , Ot avatar. O sistema desenvolvido ´e semi-aut^onomo e ´e tele-operado por um usu´ario remotamente localizado. Para melhor percep¸c~ao do ambiente remoto, o avatar envia ao usu´ario ´audio e v´ideo streams

  6. Pgina 1 de 20 1. ANTECEDENTES

    E-print Network

    Función Pública (SFP), del 2 al 13 de septiembre de 2013, el Cinvestav aplicó por quinta vez la encuesta por medio del sistema habilitado en internet por la SFP. Un total de 184 trabajadores la requisitaron diferentes. El 6 de noviembre de 2013, la SFP celebró la "Reunión de Entrega de Resultados de la Encuesta de

  7. 78 FR 62947 - Unblocking of Specially Designated Nationals and Blocked Persons Pursuant to the Foreign...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-22

    ...c/o AVIANDINA S.A.C., Lima, Peru; c/o SISTEMA DE DISTRIBUCION MUNDIAL S.A.C., Lima, Peru; Cerro Alto De La Posada 58, Los Andes...DOB 21 Aug 1958; LE Number 06367724 (Peru) (individual) [SDNTK]. 2....

  8. Education Policy Analysis Archives, 2001: Numbers 23-45.

    ERIC Educational Resources Information Center

    Glass, Gene V., Ed.

    2001-01-01

    This document consists of articles 23-45 published in the electronic journal "Education Policy Analysis Archives" for the year 2001: (23) "La Participacion de las Minorias Nacionales dentro de Sistemas Educativas Pre-Modernos: El Caso de los Garifunas de Guatemala" (Carlos R. Ruano); (24) "'Alexander v. Sandoval': A Setback for Civil Rights"…

  9. Governance istituzionale degli atenei pubblici: uno sguardo all'estero

    E-print Network

    Marrucci, Lorenzo

    Governance istituzionale degli atenei pubblici: uno sguardo all'estero Lorenzo Marrucci Università di Napoli Federico II Dipartimento di Scienze Fisiche Governance e finanziamento del sistema universitario italiano ­ Lucca 27 luglio 2006 #12;Governance istituzionale di ateneo: cos'è? La struttura di

  10. PPGEAS 3 B. 10/08 A 02/10 Horrio Segunda Tera Quarta Quinta Sexta

    E-print Network

    Hanazaki, Natalia

    PPGEAS 3 B.­ 10/08 A 02/10 Horário Segunda Terça Quarta Quinta Sexta 08h20 às 10 h DAS 410068 Máquina - Prof. Marcelo (sala 2) 14h20 às 16h00 Reuniões DAS DAS 410042 Sist. Eventos Discretos I - Profs1) ____________________ DAS 410051 Sistemas de Tempo Real I - Profs. Montez e Rômulo (sala 2) 16h20

  11. "O financiamento da Cincia pretende garantir o

    E-print Network

    Instituto de Sistemas e Robotica

    acusado de estar a cortar no dinheiro para a Ciência. A secretária de Estado nega. Não houve mostra os valores que provam que o sistema tem recebido mais dinheiro. Porém, a secretária de Estado da Ciên- cia reconhece mudanças nos critérios de financiamento. Há menos dinheiro para bolsas e mais para

  12. Redes Complejas Maximino Aldana

    E-print Network

    Aldana, Maximino

    simple suma de sus partes. Como un ejemplo t´ipico de sistema complejo consideremos a la c´elula. Evidentemente la c´elula est´a compuesta de muchas partes (ribosomas, mi- tocondrias, n´ucleo, membrana, ret´on espec´ifica dentro de la c´elula. Las partes de la c´elula responden de forma no lineal ante

  13. Esquema Hibrido para Amostragem de Mapas de Iluminac~ao em renderizac~oes foto-realistas

    E-print Network

    de Figueiredo, Luiz Henrique

    Esquema H´ibrido para Amostragem de Mapas de Iluminac¸~ao em renderizac¸~oes foto-realistas Aldo R¸~ao foto- realista com mapas de iluminac¸~ao provenientes de cenas reais. Desenvolvemos um sistema que¸~ao gr´afica. Atual- mente a renderizac¸~ao foto-realista de cenas sint´eticas com iluminac

  14. XII Escola de Modelos de Regress~ao, Fortaleza-CE, 13-16 Marco 2011 Atribuic ~ao de Trafego em Redes de Filas Finitas Dependentes do Estado

    E-print Network

    Cruz, Frederico

    modelos s~ao normalmente consideradas, o modelo do ´otimo do sistema (do ingl^es System Optimum (SO) Model) e o modelo do equil´ibrio do usu´ario (do ingl^es User Equilibrium (UE) Model). O modelo SO pode ser

  15. Joandomnec Ros Departament d'Ecologia, Universitat de Barcelona

    E-print Network

    Escolano, Francisco

    , entre la termodinámica y el juego (1980) Limnología (1983) Teoría de los sistemas ecológicos (1991 desenvolupament de la seva teoria de la biosfera. Hi ha línia directa entre els primers treballs (Perspectives-la entendre #12;"Adherència" entre successió i evolució (1973) (1985) (1986) #12;Teoria de base empírica #12

  16. Ao IV, Vol. II. Julio -Diciembre 2012 Columnas Komputer Sapiens 29 / 32 Deskubriendo Konocimiento

    E-print Network

    Grimaldo, Francisco

    la teor´ia de sis- temas y del funcionalismo estructu- ral, la simulaci´on por computador se ha usado´on conducen a establecer un cla- ro paralelismo con la teor´ia de los sistemas complejos. Por ´ultimo, co- mo prosocial. Por ejemplo, cuando se trata de juegos competitivos con interaccio- nes en pareja, como en el

  17. Mapa de Uso de Suelo de Puerto Rico 2003: Proyecto Xplorah Geographic Mapping Technologies Corp.

    E-print Network

    Gilbes, Fernando

    Mapa de Uso de Suelo de Puerto Rico 2003: Proyecto Xplorah Geographic Mapping Technologies Corp Puerto Rico. La meta principal de este sistema es modelar cambios en el uso del terreno en función de Technologies, Corp. San Juan, Puerto Rico mailto:groman@gmtgis.com (787) 2508182 / (787) 2508185 #12;

  18. Visualizacin de cambios en la costa de Puerto Rico

    E-print Network

    Gilbes, Fernando

    Visualización de cambios en la costa de Puerto Rico Tania del Mar López Marrero1, 2, 3 , Monique Remota y Sistemas de Información Geográfica en Puerto Rico 9 de octubre de 2015 · Mayagüez, Puerto Rico las costa de Puerto Rico del año 1930 · Creación de herramienta de visualización · Hacer accesible la

  19. Montenegro Greenhouse Ornamental Production Workshop October 2007

    E-print Network

    Lieth, J. Heinrich

    production system: Greenhouse Cut flower rose production. Primer odreenog proizvodnog sistema: proizvodnja of Montenegro is promotion of the their greenhouse flower production industry. At the time when the program Flower Production (Lieth) Uvod u proizvodnju cvea u staklenicima 8:30 Virtual tour of some California

  20. Prevent the Spread of Zoonotic Diseases (Spanish) 

    E-print Network

    Pena, Josefa

    2008-11-10

    distinci?n de raza, color, sexo, discapacidad, religi?n, edad u origen nacional. Una cooperaci?n del Sistema Universitario Texas A&M, el Departamento de Agricultura de EE.UU. y las Cortes de Comisionados de los Condados de Texas Producido por Agri...