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1

Crispen's Five Antivirus Rules.  

ERIC Educational Resources Information Center

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

Crispen, Patrick Douglas

2000-01-01

2

AVG Anti-Virus  

NSDL National Science Digital Library

Those who wish for an antivirus program that is both versatile and reliable should definitely consider this latest iteration of the AVG Anti-Virus program. With this program, visitors can be assured that AVG will look for new virus definitions on a daily basis and that it will also create an effective rescue disk in case a dire situation emerges. This website features a number of archived versions of the AVG software for users to choose from.

2008-01-01

3

Crispen's Five Antivirus Rules.  

ERIC Educational Resources Information Center

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

Crispen, Patrick Douglas

2000-01-01

4

New Attack Tricks Antivirus Software  

Microsoft Academic Search

Traditionally, antivirus products stop malicious software by recognizing code signatures unique to different types of malware. When the applications encounter a file with a code string that matches one in their database for a known virus, they block its access to the intended victim's computer. However, with the advent of Web 2.0, in which Web sites make it easy for

Karen Heyman

2007-01-01

5

Sophos Anti-Virus for Windows, version 7 user manual  

E-print Network

Sophos Anti-Virus for Windows, version 7 user manual For Windows 2000 and later Document date: August 2008 #12;Contents 1 About Sophos Anti-Virus ........................................................................................................................3 2 Introduction to Sophos Anti-Virus

6

Lab Anti-Virus Policy 1.0 Purpose  

E-print Network

Lab Anti-Virus Policy COE­LAV­02 1.0 Purpose To establish requirements which must be met by all computers connected to College of Engineering lab networks to ensure effective virus detection facilities must have a reputable vendor's anti-virus software installed, and scheduled to scan the system

Demirel, Melik C.

7

Page 1 of 4 University of Warwick Antivirus Policy June 2002 University of Warwick Anti-Virus Policy  

E-print Network

Page 1 of 4 University of Warwick Antivirus Policy June 2002 University of Warwick Anti-Virus Policy Scope This document describes the measures taken by the University to counter computer viruses and the responsibilities of individuals, departments and IT Services in protecting the University against viruses

Davies, Christopher

8

AMG Anti-Virus Free Edition 9.0  

NSDL National Science Digital Library

With this version of its popular product, AMG Anti-Virus is offering a few new notable highlights. For one, visitors can use the full-featured scheduling utility for automating tasks and checking for new definitions. This version of Anti-Virus also includes new anti-phishing detection techniques and an up-to-date link scanner. Users running Windows 2000 and newer as well as Linux will be able to use this application.

9

Guidelines for Anti-Virus Protection Recommended processes to prevent virus problems  

E-print Network

Guidelines for Anti-Virus Protection COE­AVP­01 Recommended processes to prevent virus problems: · Always run either the current University site licensed anti-virus software, which is available from the University download site or through ECS, or other reputable anti-virus software. · Download and run

Demirel, Melik C.

10

Review on the application of artificial intelligence in antivirus detection systemi  

Microsoft Academic Search

Artificial intelligence (AI) techniques have played increasingly important role in antivirus detection. At present, some principal artificial intelligence techniques applied in antivirus detection are proposed, including heuristic technique, data mining, agent technique, artificial immune, and artificial neural network. It believes that it will improve the performance of antivirus detection systems, and promote the production of new artificial intelligence algorithm and

Xiao-bin Wang; Guang-yuan Yang; Yi-chao Li; Dan Liu

2008-01-01

11

Evolution of Computer Virus Concealment and Anti-Virus Techniques: A Short Survey  

E-print Network

This paper presents a general overview on evolution of concealment methods in computer viruses and defensive techniques employed by anti-virus products. In order to stay far from the anti-virus scanners, computer viruses gradually improve their codes to make them invisible. On the other hand, anti-virus technologies continually follow the virus tricks and methodologies to overcome their threats. In this process, anti-virus experts design and develop new methodologies to make them stronger, more and more, every day. The purpose of this paper is to review these methodologies and outline their strengths and weaknesses to encourage those are interested in more investigation on these areas.

Rad, Babak Bashari; Ibrahim, Suhaimi

2011-01-01

12

IInoculate your computer with Symantec AntiVirus, for free! Welchia virus? Blaster  

E-print Network

IInoculate your computer with Symantec AntiVirus, for free! Welchia virus? Blaster virus? PC all locked up? Ever run into these? Help is on the way. NC State has licensed Symantec AntiVirus and NC State students, faculty and staff can get a free copy. Computer viruses on campus are no laughing matter. Last

13

East Tennessee State University Symantec Campus Agreement Student / Employee Personal Computer Antivirus Request  

E-print Network

East Tennessee State University Symantec Campus Agreement Student / Employee Personal Computer Antivirus Request East Tennessee State University (ETSU) has purchased the Symantec Campus Agreement, which understand that no technical support is provided by East Tennessee State University. _____ I understand

Karsai, Istvan

14

Impact of anti-virus software on computer virus dynamical behavior  

NASA Astrophysics Data System (ADS)

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

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

2014-11-01

15

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

ERIC Educational Resources Information Center

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

Primich, Tracy

1992-01-01

16

Quick Reference Guide Updating Mac Anti-Virus to ClamXav  

E-print Network

. This will manually scan your computer for viruses. If your computer is shown to have viruses please contact with viruses will be quarantined by the software If your computer is shown to have viruses please contactQuick Reference Guide Updating Mac Anti-Virus to ClamXav CSUF Last Revised: 06/27/11 Page 1 of 5

de Lijser, Peter

17

active immunity by using pigs previously injected with variable amounts of swine fever antivirus immunoglobins.  

E-print Network

active immunity by using pigs previously injected with variable amounts of swine fever antivirus immunoglobins. The vaccine used was an attenuated strain of swine fever virus : the Thiverval Strain. The immune. Swine fever vaccination of piglets in natural conditions with the « Thiverval » strain in presence

Paris-Sud XI, Université de

18

Theoretical and experimental analysis of the impacts of removable storage media and antivirus software on viral spread  

NASA Astrophysics Data System (ADS)

In this paper, a new computer virus propagation model, which incorporates the effects of removable storage media and antivirus software, is proposed and analyzed. The global stability of the unique equilibrium of the model is independent of system parameters. Numerical simulations not only verify this result, but also illustrate the influences of removable storage media and antivirus software on viral spread. On this basis, some applicable measures for suppressing virus prevalence are suggested.

Gan, Chenquan; Yang, Xiaofan

2015-05-01

19

Nucleotide bias of DCL and AGO in plant anti-virus gene silencing  

Microsoft Academic Search

Plant Dicer-like (DCL) and Argonaute (AGO) are the key enzymes involved in anti-virus post-transcriptional gene silencing\\u000a (AV-PTGS). Here we show that AV-PTGS exhibited nucleotide preference by calculating a relative AV-PTGS efficiency on processing\\u000a viral RNA substrates. In comparison with genome sequences of dicot-infecting Turnip mosaic virus (TuMV) and monocot-infecting Cocksfoot streak virus (CSV), viral-derived small interfering RNAs (vsiRNAs) displayed positive

Thien Ho; Liang Wang; Linfeng Huang; Zhigang Li; Denise W. Pallett; Tamas Dalmay; Kazusato Ohshima; John A. Walsh; Hui Wang

2010-01-01

20

I use OIT's free anti-virus software to scan my computer at least once every month.  

E-print Network

I use OIT's free anti-virus software to scan my computer at least once every month. I set up my computer to receive operating system updates automatically. · Windows:update.microsoft.com · Macintosh prompted to do so. My computer has a User Account for everyday use. Ionlyusethe

Schweik, Charles M.

21

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

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. ...

Zhao, Xiaojun

22

Selección de los principales problemas de seguridad de las vacunas  

Microsoft Academic Search

ExtractoEjemplos recientes de los principales beneficios en salud pública de la vacunación incluyen reducciones globales de la mortalidad por sarampión y el registro de niveles bajos de enfermedades evitables por vacunas en Estados Unidos. No obstante, los problemas reales o percibidos de seguridad de las vacunas pueden ejercer un impacto adverso sobre los programas de vacunación. La monitorización sólida de

John K. Iskander; Jane Gidudu; Nelson Arboleda; Wan-Ting Huang

2008-01-01

23

Tratamiento Léxico en los Sistemas de Recuperación y Representación de Información en Biomedicina  

Microsoft Academic Search

La terminología usada en Biomedicina tiene rasgos léxicos que han requerido la elaboración de recursos terminológicos y sistemas de recuperación de información con funcionalidades específicas. Las principales características son las elevadas tasas de sinonimia y homonimia, debidas a fenómenos como la proliferación de siglas polisémicas y su interacción con el lenguaje común. Los sistemas de recuperación de información en el

Mónica Marrero; Sonia Sánchez-Cuadrado; Julián Urbano; Jorge Morato; José Antonio Moreiro González

2010-01-01

24

Estabilización de imágenes obtenidas por una cámara a bordo de un vehículo en movimiento para la mejora de un sistema Light-Beam  

Microsoft Academic Search

Los sistemas de visión artificial juegan un impor- tante papel en numerosos Sistemas de Transporte Inteligente (STI), tales como monitorización del tráfico, asistencia al conduc- tor o conducción automática de vehículos. Uno de los principales problemas que suelen sufrir este tipo de sistemas, bien estén instalados en puntos fijos del entorno o en los propios vehículos, es la inestabilidad en

Álvaro González; Luis M. Bergasa; Pablo F. Alcantarilla; Pedro Jiménez

25

Sistemas de costos, presupuesto por resultados y Sistemas Integrados de Administración Financiera: Aportes y desafíos para incrementar el impacto del gasto público en el bienestar de los ciudadanos  

Microsoft Academic Search

El presente documento analiza el enfoque de gestión pública Presupuesto por Resultados, el cual al centrarse en las necesidades de los ciudadanos y tener la solidez conceptual para mejorar la eficiencia y eficacia del gasto público, puede contribuir al logro de los objetivos principales de las finanzas públicas. Sin embargo, para ello se necesita del apoyo de los sistemas de

Roger Díaz

2012-01-01

26

TUDE LMENTAIRE DE LA RFRACTION DANS UN PRISME HORS DE LA SECTION PRINCIPALE. LOIS DE BRAVAIS  

E-print Network

ÉTUDE ÉLÉMENTAIRE DE LA RÉFRACTION DANS UN PRISME HORS DE LA SECTION PRINCIPALE. LOIS DE BRAVAIS d'un rayon à travers un prisme hors du plan de la section principale. D'un point 0 quelconque (fig vecteur BA est :parallèle à la normale à la première face du prisme. Article published online by EDP

Paris-Sud XI, Université de

27

El Sistema's Open Secrets  

ERIC Educational Resources Information Center

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…

Booth, Eric

2011-01-01

28

El sistema ESO 296-IG 11  

NASA Astrophysics Data System (ADS)

El objeto ESO 296-IG 11 que se presenta en forma de ``V'' y posee destacadas condensaciones a lo largo de cada una de sus dos ramas, las que son de igual extensión (~ 1'), es estudiado en base a material espectroscópico obtenido en el CASLEO. Así se establecen las principales características espectrales, las condiciones físicas y los mecanismos de excitación dominantes de las zonas más notables de su estructura, como así también la distribución de su extinción interna y la variación del grado de excitación de las mismas. Del análisis de las velocidades radiales se determina que se trata de dos galaxias de tipo disco que se están interpenetrando y que conforman un sistema triple junto con una galaxia de contorno elíptico y tamaño considerablemente menor (0.2') que se encuentra a ~ 1.3' del punto de intersección de las dos primeras, ubicada sobre la dirección que contiene a una de éstas y hacia la que se extienden unas débiles y largas prolongaciones de la otra.

Agüero, E. L.; Paolantonio, S.

29

Introduccion Sistemas y Programacion Paralela  

E-print Network

Introducci´on Sistemas y Programaci´on Paralela Paradigmas de Programaci´on Paralela Entornos de Programaci´on Paralela Metodolog´ia de la Programaci´on Paralela 2014-2015 Facultad Inform´atica, Universidad´on Sistemas y Programaci´on Paralela Paradigmas de Programaci´on Paralela Entornos de Programaci´on Paralela

Giménez, Domingo

30

Sistemas de cúmulos globulares extragalácticos  

NASA Astrophysics Data System (ADS)

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

Forte, J. C.

31

Caos en sistemas clásico-cuánticos  

NASA Astrophysics Data System (ADS)

Una de las formas de estudiar la existencia de caos en el comportamiento de un sistema clásico-cuántico, es truncando el espacio de Hilbert del sistema cuántico. El objetivo de este trabajo es analizar como afecta dicho truncamiento en la dinámica del sistema. Para tal fin se propone un Hamiltoniano integrable, cuyos valores de expectación asociados a coordenadas y momentos cuánticos responden, por el teorema de Ehrenfest, a un sistema de dos osciladores clásicos con acoplamiento lineal.

Dirani, L. D.; Núñez, J. A.

32

Knowledge exchange with Sistema Scotland  

Microsoft Academic Search

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, within the Raploch, a disadvantaged area of Scotland. The

Julie Allan; Nikki Moran; Celia Duffy; Gica Loening

2010-01-01

33

Knowledge Exchange with Sistema Scotland  

ERIC Educational Resources Information Center

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,…

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

2010-01-01

34

Thoughts on Seeing "El Sistema"  

ERIC Educational Resources Information Center

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

Booth, Eric

2009-01-01

35

Sebastin Nieto Parra* ESTABILIDAD DEL SISTEMA  

E-print Network

Sebastián Nieto Parra* ESTABILIDAD DEL SISTEMA FINANCIERO Y REGULACI�N DE CAPITAL: EL CASO DE LOS financieros que pueden subsanar la fragilidad de los sistemas financieros y favorecer así la estabilidad de éstos. Palabras clave: sistema financiero internacional, instituciones financieras y crediticias, crisis

Paris-Sud XI, Université de

36

SISTEMA FINANCIERO Y CRECIMIENTO ECONÓMICO EN CHILE  

Microsoft Academic Search

Este trabajo presenta una breve descripción del grado de desarrollo de los mercados financieros en Chile, en comparación con otros países. Luego de resumir las principales reformas financieras imple- mentadas en el país en las últimas décadas, se destacan las fortalezas y debilidades más importantes de los mercados financieros en Chile. A continuación se analizan los problemas urgentes, en particular

Leonardo Hernández; Fernando Parro

37

Memorias Cache en Sistemas de Tiempo Real  

Microsoft Academic Search

Resumen El cálculo de una cota del WCET de una tarea (en un procesador moderno) es uno de los principales retos en el estudio de los RTS, ya que el funcionamiento de algunos de los componentes hardware del procesador tiene latencia variable. Un caso particular, muy utilizado en los procesadores actuales son las memorias cache. Estas memorias se emplean para

L. C. Aparicio; J. Segarra; J. L. Villarroel; V. Viñals

38

Une nouvelle analyse multi-temporelle d'images satellitales, les residus de l'Analyse en Composantes Principales. Un cas d'etude: une serie  

E-print Network

Composantes Principales) du tableau des NDVI par la proce´dure suivante: calculer les variables NDVI a` chacune des dates; construire le tableau de donne´es espace 6 temps, par accolement des variables NDVI; re stables au cours du temps du paysage; et calculer les re´sidus entre le tableau NDVI et celui reconstruit

Thioulouse, Jean

39

Sistemas Elctricos: Sesin I Auditorio Antonio Rodrguez  

E-print Network

Sistemas Eléctricos: Sesión I Auditorio Antonio Rodríguez Chairman: Dr. Pável Zúñiga Haro 9, CINVESTAV GDL 12:30-13:00 RECESO Sistemas Eléctricos: Sesión II Auditorio Antonio Rodríguez Chairman: Dr Auditorio Antonio Rodríguez Chairman: Dr. Claudio Rubén Fuerte Esquivel 16:30-17:15 "Estabilidad de Voltaje

40

Tecnologa para todos Sistema Inalmbrico de Rice  

E-print Network

Tecnología para todos Sistema Inalámbrico de Rice Andrea Trevino Rice University http://www.techforall.org/tfa_wireless.html http://tfa.rice.edu #12;Por qué en Pecan Park? La Misión de TFA: Proporcionar conocimientos a la comunidad. El propósito de Rice: Usar este programa para explorar la siguiente generación del sistema

41

El Sistema and American Music Education  

ERIC Educational Resources Information Center

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

Lesniak, Melissa

2012-01-01

42

UNIVERSIDADE FEDERAL DO PARAN SISTEMA DE BIBLIOTECAS  

E-print Network

, composta por teses, dissertações, livros, separatas, monografias de cursos de especialização, fotografias e acervo do Sistema de Bibliotecas da UFPR é composto por livros, teses, dissertações e monografias, além Acervo do SiBi - UFPR Livros (1) Outros materiais (2) PeriódicosBibliotecas Títulos exemplares exemplares

Paraná, Universidade Federal do

43

Sistema de protección social Chile Solidario  

Microsoft Academic Search

Esta presentación fue comisionada por la Red de Reducción de la Pobreza y Protección Social del Diálogo Regional de Política para la Reunión Subregional de los Países Andinos celebrada los días 28 y 29 de agosto de 2006 en Colombia. El documento presenta el programa Chile Solidario, un sistema de protección social dirigido a las personas y familias en situación

Banco Interamericano de Desarrollo

2006-01-01

44

Sistemas de reescritura de redes* M. Llorens, J. Oliver  

E-print Network

Sistemas de reescritura de redes* M. Llorens, J. Oliver Univ. Polit´ecnica de Valencia. Depto´amicos utilizando extensiones de las redes de Petri. Comenzamos recordando la noci´on de sistema de reescritura de redes y probamos que tales sistemas tienen el mismo poder computacional que la m´aquina de Turing. Una

Alpuente, María

45

Sistemas de Informao para a Web: Arquitecturas Aplicacionais  

E-print Network

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

da Silva, Alberto Rodrigues

46

UNIVERSIDADE FEDERAL DO PARAN SISTEMA DE BIBLIOTECAS  

E-print Network

, composta por teses, dissertações, livros, separatas, monografias de cursos de especialização, fotografias e do Sistema de Bibliotecas da UFPR é composto por livros, teses, dissertações e monografias, além deBi/UFPR ­ 2012 Livros (1) Outros materiais (2) Periódicos Bibliotecas Títulos exemplares exemplares Títulos AG 18

Paraná, Universidade Federal do

47

Compensacin NAP de variabilidad en sistemas de reconocimiento facial  

E-print Network

Compensación NAP de variabilidad en sistemas de reconocimiento facial en entornos no controlados compensación de variabilidad de carácter general basado en Nuisance Attribute Projection (NAP) que puede ser en Nuisance Attribute Projection (NAP) aplicado a los sistemas de re- conocimiento facial. En este

Autonoma de Madrid, Universidad

48

Experiencias en el uso del sistema de laboratorios virtuales  

Microsoft Academic Search

Resumen: en este artículo presentamos las experiencias obtenidas del desarrollo y uso de SimulNet, una plataforma telemática de laboratorios docentes sobre Internet. SimulNet proporciona un entorno para el aprendizaje práctico altamente interactivo y colaborativo, incluyendo herramientas de apoyo a las tareas de seguimiento por parte de los profesores. Los criterios y principales líneas de su diseño fueron presentados en Novática

SimulNet L. Anido; M. Llamas; M. J. Fernández

49

Los sistemas de bienestar europeos tras la crisis económica  

Microsoft Academic Search

El presente trabajo analiza la situación del welfare en el Viejo Continente tras el “crack” financiero de 2007. Se analizan las Edades del Bienestar europeo prestando particular atención a las principales transformaciones de las políticas sociales y las diversas trayectorias seguidas por los regímenes del bienestar (welfare regimes), los cuales son conceptualizados y caracterizados con el fin de mostrar las

Luis Moreno; Eloísa del Pino; Pau Marí-Klose; Francisco Javier Moreno-Fuentes

2014-01-01

50

Calibração do sistema imageador do telescópio MASCO  

NASA Astrophysics Data System (ADS)

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.

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

2003-08-01

51

DSM-PEPE: Un Sistema de Memoria Compartida Distribuida para Multicomputadores de Bajo Costo  

Microsoft Academic Search

Resumen El paradigma de memoria compartida distribuida permite aprovechar la potencialidad de com- putacion paralela que ofrecen los sistemas multicomputador. Estos sistemas son mas escalables y menos costosos que los sistemas multiprocesador fuertemente acoplados. Su programacion es simple, a diferencia de los sistemas distribuidos basados en paso de mensajes. En este art¶‡culo describimos el dise~ no y los detalles de

Alvaro E. Campos; Federico Meza

52

Nuevos sistemas de frecuencia intermedia para el IAR  

NASA Astrophysics Data System (ADS)

Se presenta el diagrama en bloques de los nuevos sistemas de Frecuencia Intermedia para los dos radiómetros instalados en el IAR. Entre las características más importantes del sistema podemos mencionar la posibilidad de conectar cualquiera de las dos antenas a los ``backend" disponibles: analizador espectral de alta resolución (META II) de 0,05 Hz, autocorrelador de 1008 canales y contínuo. Se incorporan al sistema nuevos sintetizadores de frecuencia implementados con PLL y la moderna técnica de síntesis digital directa. Por último, el conjunto del sistema es susceptible de ser configurado por las computadoras de adquisición de datos, supervisadas por otra, que entrega el estado de funcionamiento actual y evita la selección de configuraciones incorrectas por parte del usuario.

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

53

Sistemas Correctores de Campo Para EL Telescopio Cassegrain IAC80  

NASA Astrophysics Data System (ADS)

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.

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

1987-05-01

54

Universidad de Zaragoza Departamento de Informatica e Ingenieria de Sistemas  

E-print Network

Universidad de Zaragoza Departamento de Inform´atica e Ingenier´ia de Sistemas MEMORIA DE TESIS Ingenier´ia Inform´atica por D~na. Sandra S. Baldassarri Departamento de Inform´atica e Ingenier´ia de´atica e Ingenier´ia de Sistemas Universidad de Zaragoza Septiembre 2004 Grupo de Inform´atica Gr

Baldassarri, Sandra

55

Avira AntiVir Personal-Free Antivirus  

NSDL National Science Digital Library

Viruses are quite pesky, and the free version of Avira AntiVir Personal can help those bedeviled by such afflictions. This application will help users locate and remove Trojans, worms, and backdoor programs. Users can customize their scans and they can elect to fully scan all hard drives. This version is compatible with computers running Windows 2000, XP, and Vista.

2008-01-01

56

Sistemas de ayuda inteligente para entornos informáticos complejos  

Microsoft Academic Search

Los sistemas de ayuda inteligente (SAI) o asistentes inteligentes son una propuesta para mejorar el aprendizaje y el rendimiento en la utilización de entornos informáticos complejos. Habitualmente la ayuda tiene como único fin la mejora del rendimiento del usuario, pero nosotros creemos que dicha asistencia debe tener también un propósito educativo. Si el usuario mejora su conocimiento sobre la aplicación

Baltasar Fernández Manjón

2001-01-01

57

Oficina de Ordenacin Territorial Sistemas de Informacin Geogrfica  

E-print Network

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

Gilbes, Fernando

58

Aprendizaje Evolutivo de Sistemas Difusos Jerarquicos en Serie  

E-print Network

ayu- dar a paliar esta situaci´on. Por ello, en este trabajo presentamos un Algoritmo Gen´etico Multiobjetivo dise~nado para el aprendizaje de Sistemas Difusos Jer´arquicos en Serie. El algoritmo minimiza dos (interpretabilidad). Se proponen operadores gen´eticos (uno de cruce y dos de mutaci´on) adecuados para aprender este

Casillas Barranquero, Jorge

59

TESE DE DOUTORADO EM ENGENHARIA DE SISTEMAS ELETRNICOS E AUTOMAO  

E-print Network

BRASÍLIA FACULDADE DE TECNOLOGIA #12;#12;UNIVERSIDADE DE BRASÍLIA FACULDADE DE TECNOLOGIA DEPARTAMENTO DE Tecnologia TESE DE DOUTORADO EM ENGENHARIA DE SISTEMAS ELETRÔNICOS E AUTOMAÇÃO REALCE DE VÍDEO PARA de Engenharia Elétrica da Faculdade de Tecnologia da Universidade de Brasília, como parte dos

de Queiroz, Ricardo L.

60

Mtricas de Funcionalidad: una taxonoma para sistemas Web  

E-print Network

Muy poco de lo aprendido en ingeniería de software, se aplica en el desarrollo de sistemas Web. Esto, métricas para aplicaciones Web, aplicaciones/sitios Web. 1. Introducción El desarrollo y crecimiento del desarrollo de sitios y aplicaciones Web está caracterizado por cuatro importantes factores: (1) las

Guerrero, Luis

61

Curso Taller Sistema Integral de Gestin de Proyectos  

E-print Network

://quihicha.colciencias.gov.co:7777/portal/IngresoPreproyectos.jsp Proyectos 4 de 40Universidad Nacional de Colombia Software fuera de Línea (Instalación) Requisitos del Sistema (http://www.colciencias.gov.co/web salud En Línea 502 Banco de Programas Estratégicos y Proyectos de Investigación, Desarrollo Tecnológico

Prieto, Germán A.

62

Capacidad de pago de los usuarios del sistema UPAC  

Microsoft Academic Search

Desde su creación en 1972, el sistema UPAC ha generado grandes controversias, en algunas ocasiones sustentadas en hechos económico-financieros, en otras basadas en posiciones y creencias personales, y en otras fundamentadas en situaciones de las corporaciones de ahorro y vivienda o de los usuarios. Esto ha originado una gran polarización de conceptos y opiniones que obligan a revisar en detalle

Rodrigo Varela Villegas; Royman Ricardo Cañón López; Carlos M. Restrepo

1998-01-01

63

SISTEMA DE TRANSMISI PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE  

E-print Network

SISTEMA DE TRANSMISI PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE ESCUELA DE INGENIERIA METODOLOGÍA DE de Chile, Abril de 2011 © 2011, Daniel Raimundo Charlín Dussaillant AD CATOLICA DE CHILE METODOLOGÍA Daniel Raimundo Charlín Dussaillant #12;PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE ESCUELA DE INGENIERIA

Catholic University of Chile (Universidad Católica de Chile)

64

UNIVERSIDADE FEDERAL DO PARAN (UFPR) SISTEMA DE BIBLIOTECAS (SiBi)  

E-print Network

UNIVERSIDADE FEDERAL DO PARANÁ (UFPR) SISTEMA DE BIBLIOTECAS (SiBi) PROGRAMA DE EDUCAÇÃO CONTINUADA em Rede. #12;UNIVERSIDADE FEDERAL DO PARANÁ (UFPR) SISTEMA DE BIBLIOTECAS (SiBi) PROGRAMA DE EDUCAÇÃO OK. #12;UNIVERSIDADE FEDERAL DO PARANÁ (UFPR) SISTEMA DE BIBLIOTECAS (SiBi) PROGRAMA DE EDUCAÇÃO

Paraná, Universidade Federal do

65

Departamento de Electronica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na  

E-print Network

Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru;Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na AC LUCEH;Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na AC LUCEH

Fraguela, Basilio B.

66

Departamento de Electronica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na  

E-print Network

Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru 2004­ p.1/29 #12;Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na AC LUCEH Curriculum Vitae

Fraguela, Basilio B.

67

Modelao da Integrao em Arquitecturas de Sistemas de Informao Andr Vasconcelos  

E-print Network

Modelação da Integração em Arquitecturas de Sistemas de Informação André Vasconcelos Instituto.tribolet@ceo.inesc.pt #12;Modelação da Integração em Arquitecturas de Sistemas de Informação Resumo No passado, na definição de arquitecturas de sistemas de informação (ASI) a integração era considerada uma questão de segunda

68

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

E-print Network

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

Ortega, Eusebi Calle

69

CONTROL ROBUSTO EN SISTEMAS DE POTENCIA MULTIMAQUINAS UTILIZANDO LOGICA DIFUSA Y TEORIAS DE  

E-print Network

complejidad creciente que han alcanzado los sistemas eléctricos de potencia, debido al aumento de interconexiones, al uso de nuevas tecnologías y a la necesidad de operar el sistema económicamente, ha llevado sistemas eléctricos de potencia (Anderson, 1993; Kundur, 1994). En las últimas dos décadas se han

Catholic University of Chile (Universidad Católica de Chile)

70

Ingeniera en Sistemas de Computacin PRIMER AO PRIMER CUATRIMESTRE  

E-print Network

Física II Análisis Matemático II Física I Análisis Matemático II Física I 7526 Arquitectura de Programación 5949 Sistemas Operativos Arquitectura de Computadoras para Ingeniería Organización de Computadoras Arquitectura de Computadoras para Ingeniería 2516 Análisis de Circuitos Eléctricos Física II Funciones de

Maguitman, Ana Gabriela

71

APLICACIÓN DE PICOBLAZE AL DISEÑO DE SISTEMAS DE CONTROL INDUSTRIAL  

Microsoft Academic Search

En este trabajo se presenta un ejemplo de aplicación del microprocesador PicoBlaze: el diseño e implementación de un sistema digital de carácter in dustrial que emula el comportamiento de un GPS. PicoBlaze es un microprocesador de características similares a la d e muchos microcontroladores como el 68HC11 de Motorola o el 8742 de Intel, teniendo la principal ventaja de que

Julián Viejo; Enrique Ostua; Manuel J. Bellido; Paulino Ruiz-de-Clavijo; Alejandro Muñoz; Alejandro Millán

72

Estudo e aplicação do código de desembaraçamento espectral - Korel - em sistemas triplos  

NASA Astrophysics Data System (ADS)

O código KOREL é uma ferramenta adicional eficiente para a determinação simultânea de parâmetros orbitais espectroscópicos para o desembaraço de espectros individuais de sistemas estelares com até cinco componentes. Estudos já realizados (Torres,KBV,2002, Dissertação de Mestrado DF-ICEx-UFMG) mostram as limitações, aplicabilidade e eficiência do código para sistemas com duas componentes. Apresentamos, neste trabalho, a continuação dos estudos para sistemas com três componentes (sistemas hierárquicos), utilizando espectros sintéticos "gabaritos" de estrelas individuais em órbitas cujos parâmetros são conhecidos "a priori". Geramos os espectros compostos e verificamos como o código reproduz os parâmetros orbitais e espectros individuais em diversas situações físicas. É apresentado, ainda, uma discussão da aplicabilidade do código em sistemas reais como RV Crateris (Machado,ACM,1997, Dissertação de Mestrado DF-ICEx-UFMG), um sistema triplo cujas componentes eclipsantes estão, provavelmente, ainda na fase pré-sequência principal.

Torres, K. B. V.; Vaz, L. P. R.

2003-08-01

73

Publications principales Articles dans les revues internationales  

E-print Network

. Zeitlin, Solitary Rossby waves in a weakly stratified medium 1985, Izvestiya: Atm. Ocean Physics 21, p and V. Shelest Thermal properties of the QED (2+1) and confinement 1986, Sov. J. Theor. Math. Phys, p. 16771 16778. 26.A. Stegner and V. Zeitlin, Asymptotic expansions and monopolar solitary

Zeitlin, Vladimir

74

Sistemas Distribuidos e Redes de Sensores Mais Chamada Remota de Procedimento  

E-print Network

Sistemas Distribu´idos e Redes de Sensores Mais Chamada Remota de Procedimento abril de 2013 Sistemas Distribu´idos e Redes de Sensores #12;RPC ­ refer^encias A. Birrell and B. Nelson. 1984´idos e Redes de Sensores #12;RPC: concorr^encia e assincronismo no cliente oneway futuros chamadas ass

Rodriguez, Noemi

75

Uma Ferramenta de Monitoramento de Redes usando Sistemas Gerenciadores de Streams de Dados  

E-print Network

Uma Ferramenta de Monitoramento de Redes usando Sistemas Gerenciadores de Streams de Dados Natascha uma ferramenta gen´erica de monitoramento de redes utilizando um Sistema Gerenciador de Streams de¸~oes e topologias de rede, considerando tamb´em diver- sos objetivos de monitoramento. As medic¸~oes s

Hara, Carmem Satie

76

Sistemas de Enseñanza Adaptativos : experiencias de PDinamet en la enseñanza de la Física  

Microsoft Academic Search

Artículo sobre el aprendizaje a través de sistemas adaptativos enfocado al aprendizaje de un tema de Física denominado Dinámica. En primer lugar se hace una pequeña introducción en la que se justifica el uso de los sistemas adaptativos como una nueva forma metodológica que permita personalizar la enseñanza y se nos presenta PDinamet. Después se explica el diseño pedagógico de

Miguel Montero López

2007-01-01

77

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

E-print Network

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

da Silva, Alberto Rodrigues

78

ltima modificacin: 16-11-2012 11477 -ARISO 1 -Arquitectura de Computadores y Sistemas Operativos I  

E-print Network

Última modificación: 16-11-2012 11477 - ARISO 1 - Arquitectura de Computadores y Sistemas ECTS: 701 - AC - Departamento de Arquitectura de Computadores 2013 5 Unidad responsable: 230 - ETSETB asignatura Arquitectura de Computadores y Sistemas Operativos 1 cuenta con una carga lectiva de 6 créditos

Politècnica de Catalunya, Universitat

79

Sistema de Dialogo Estadistico y Adquisicion de un Nuevo Corpus de Dialogos  

E-print Network

Sistema de Di´alogo Estad´istico y Adquisici´on de un Nuevo Corpus de Di´alogos D. Griol, E funcionamiento del sistema. Asimismo, se descri- be la adaptaci´on de la arquitectura utilizada para la adquisici´on´alogo, Adquisici´on de Corpus, Modelos Estad´isticos Abstract: We present a dialog system in which the main modules

Goterris, Francisco Torres

80

Métodos de depuración HW-SW para sistemas on chip reconfigurables  

Microsoft Academic Search

El dinamismo de las aplicaciones en sistemas on chip reconfigurables re- quiere un eficiente uso de los recursos disponibles. Para permitir la asignación en tiempo real de los recursos, el sistema operativo y la plataforma SoC reconfigurable han de estar diseñadas en paralelo. En este contexto, el desarrollo del hardware y software encastado presenta los inconvenientes individuales de cada uno,

Guillermo Talavera; Vincent Nollet; Jean-Yves Mignolet; Diederick Verkest; Rudy Lauwereins; Jordi Carrabina

81

AstroFácil: Sistema Computacional Embarcado para Automatização de Telescópios de Pequeno Porte  

Microsoft Academic Search

O uso de telescópios de pequeno porte na observação astronômica amadora é muitas vezes restringido pela dificuldade que astrônomos amadores enfrentam para localizar um astro desejado e acompanhá-lo no céu. Este artigo apresenta o desenvolvimento de um sistema embarcado a ser utilizado na automação de telescópios de pequeno porte visando facilitar a operação desses equipamentos por amadores. O sistema é

Marcos Roberto Silva; Maicon Carlos Pereira; Caroline Farias Salvador; Rafael Luiz Cancian; Roberto Miguel Torres; Cesar Albenes Zeferino

2006-01-01

82

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO SISTEMA DE BIBLIOTECAS E INFORMAO SiBI  

E-print Network

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO SISTEMA DE BIBLIOTECAS E INFORMAÇÃO ­ SiBI Série Manual de/IBICT Angela Felix - SiBI Jane Maria Medeiros - CCJE/BT #12;REITOR DA UNIVERSIDADE FEDERAL DO RIO DE JANEIRO Mello Universidade Federal do Rio de Janeiro. Sistema de Bibliotecas e Informação U58m Manual para

Liu, I-Shih

83

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO SISTEMA DE BIBLIOTECAS E INFORMAO SiBI  

E-print Network

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO SISTEMA DE BIBLIOTECAS E INFORMAÇÃO ­ SiBI Divisão de CONSTA NAS BIBLIOTECAS DA UFRJ Rio de Janeiro 2011 #12;Sistema de Bibliotecas e Informação ­ Grupo de Estudo do Módulo de Circulação/ALEPH 2 UFRJ Universidade Federal do Rio de Janeiro Prof. Carlos Antônio

Liu, I-Shih

84

Sistemas Distribuidos e Redes de Sensores Aula 6: Outros Padr~oes disseminac~ao e roteamento  

E-print Network

Sistemas Distribu´idos e Redes de Sensores Aula 6: Outros Padr~oes ­ dissemina¸c~ao e roteamento abril de 2013 Sistemas Distribu´idos e Redes de Sensores #12;Padr~oes de programas distribu´idos padr 1991, 49-90. Sistemas Distribu´idos e Redes de Sensores #12;Nota¸c~ao Andrews canais desacoplamento em

Rodriguez, Noemi

85

33. moto in un sistema mobile di coordinate 273 Capitolo 8. Moti relativi e sistemi di riferimento  

E-print Network

33. Moto in un sistema mobile di coordinate sec.33 p.33.1 33.1. Introduzione. Abbiamo giâ??a visto nei riferimento di laboratorio, poichâ??e lo si puâ??o immaginare come il sistema di riferimento (fisso) in cui si e qualsiasi laboratorio in essa) non costituisce un sistema di riferimento fisso, si puâ??o apprezzare subito l

Roma "La Sapienza", Università di

86

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.

87

Evolucin del desarrollo y del costo de los sistemas fotovoltaicos en el mundo y en Chile  

E-print Network

Evolución del desarrollo y del costo de los sistemas fotovoltaicos en el mundo y en Chile Pontificia Universidad Católica de Chile Escuela de Ingeniería Departamento de Ingeniería Eléctrica IEE3372............................................................................................ 28 SMA Solar Technology

Rudnick, Hugh

88

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...

89

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

E-print Network

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

Barbosa, Alberto

90

Un Algoritmo Genetico para Aprendizaje de un Sistema Basado en Reglas Difusas tipo  

E-print Network

Un Algoritmo Gen´etico para Aprendizaje de un Sistema Basado en Reglas Difusas tipo Takagi Sugeno F´atico, sistemas basados en reglas difusas TS, algoritmos gen´eticos, I. INTRODUCCI ´ON El modelado difuso ling´on por m´inimos cuadrados. Para la definici´on de la BD se emplear´a un Algoritmo Gen´etico que incluye

Granada, Universidad de

91

ltima actualizacin: 25 de febrero de 2011 SISTEMA DE GARANTA DE CALIDAD DEL TTULO  

E-print Network

planificación y control de la calidad en la Universidad es el Comité de Calidad de la Universidad. Este comité.urjc.es/ordenacion_docente/sistema_interno/plan_estrategico.pdf). b) Realizar el seguimiento y control de la ejecución de la Política de Calidad y de los Objetivos de�ltima actualización: 25 de febrero de 2011 SISTEMA DE GARANTÍA DE CALIDAD DEL TÍTULO 1

Rey Juan Carlos, Universidad

92

OPTIMIZACIÓN CONJUNTA DEL DISEÑO Y LA ESTRATEGIA DE MANTENIMIENTO DE SISTEMAS DE SEGURIDAD EN INDUSTRIAS POTENCIALMENTE PELIGROSAS  

Microsoft Academic Search

En el presente trabajo se describen las metodologías necesarias para realizar la optimización desde criterios, tanto económicos como de confiabilidad, de sistemas industriales complejos. Se utiliza como ejemplo ilustrativo la optimización conjunta del diseño y la estrategia de man- tenimiento de un sistema de seguridad de una central nuclear. Las metodologías que se des- criben son los Métodos Evolutivos de

M. Méndez; G. Winter; División de Computación Evolutiva

93

La efectividad de las redes de protección social: El rol de los sistemas integrados de información social en Chile  

Microsoft Academic Search

El presente trabajo se centra en el análisis del Sistema Integrado de Información Social (SIIS) que como el registro único de beneficiarios implementado en Chile. Se describe detalladamente su operación para mejorar la estrategia de protección social. Se concluye que los datos integrados al sistema son de gran utilidad para los organismos prestadores de beneficios sociales. Por ejemplo, estos datos

Francisco Covarrubias; Ignacio Irarrazaval

2011-01-01

94

Desarrollo de un Módulo de Visualización y Navegación de Información Basada en Ontologías para el Sistema de Recuperación Semántica SABIOS  

Microsoft Academic Search

Resumen: Este articulo presenta el desarrollo del Módulo de Visualización y Navegación del Sistema de Re- cuperación Semántica SABIOS (Sistema de Almacenamiento y Búsqueda de Información Organizada Semántica- mente). Este módulo permite dar soporte a las tareas de recuperación añadiendo elementos visuales que faciliten la localización de información relevante para el usuario. Esto implica un cambio en el paradigma de

Juan David Giraldo; Jaime Alberto Guzmán Luna; Juan Carlos Ceballos

2006-01-01

95

Esercitazione del 21 marzo 2003 Progetto del sistema di controllo di vibrazione per la sospensione di un'automobile  

E-print Network

di un'automobile (sospensione attiva) Il sistema raffigurato rappresenta lo schema semplificato pneumatico-ammortizzatore-telaio di un'automobile. Il sistema è caratterizzato dalla massa equivalente M dell'automobile esercitare sulla ruota e sul telaio dell'automobile e come azione disturbante d il profilo dell'asperità del

Monaco, Salvatore

96

Esercitazione del 7 marzo 2003 Progetto del sistema di controllo di vibrazione per la sospensione di un'automobile  

E-print Network

di un'automobile (sospensione attiva) Il sistema raffigurato rappresenta lo schema semplificato pneumatico-ammortizzatore-telaio di un'automobile. Il sistema è caratterizzato dalla massa equivalente M dell'automobile esercitare sulla ruota e sul telaio dell'automobile e come azione disturbante d il profilo dell'asperità del

Monaco, Salvatore

97

Esercitazione del 14 febbraio 2003 Progetto del sistema di controllo di vibrazione per la sospensione di un'automobile  

E-print Network

sospensione di un'automobile (sospensione attiva) Il sistema raffigurato rappresenta lo schema semplificato pneumatico-ammortizzatore-telaio di un'automobile. Il sistema è caratterizzato dalla massa equivalente M dell'automobile esercitare sulla ruota e sul telaio dell'automobile e come azione disturbante d il profilo dell'asperità del

Monaco, Salvatore

98

Esercitazione del 28 febbraio 2003 Progetto del sistema di controllo di vibrazione per la sospensione di un'automobile  

E-print Network

sospensione di un'automobile (sospensione attiva) Il sistema raffigurato rappresenta lo schema semplificato pneumatico-ammortizzatore-telaio di un'automobile. Il sistema è caratterizzato dalla massa equivalente M dell'automobile esercitare sulla ruota e sul telaio dell'automobile e come azione disturbante d il profilo dell'asperità del

Monaco, Salvatore

99

Redes Seguras Usando el Sistema GNU/Linux Luis Gerardo de la Fraga  

E-print Network

Redes Seguras Usando el Sistema GNU/Linux Luis Gerardo de la Fraga Secci´on de Computaci´on de redes se- guras: una por divisi´on de redes usando puer- tas (gateways), cortafuegos (firewalls), lo que generan los esquemas de redes militarizadas y redes desmilitarizadas; y otra por monito- reo

Fraga, Luis Gerardo de la

100

Appendix 18-A page 1 of 2 Sistema de la Universidad de Wisconsin  

E-print Network

empleador dentro de su discreción la cual regula la conducta personal de sus empleados". Las siguientes reglas de trabajo relacionadas a la conducta personal son emitidas por el Sistema de la Universidad de conducta personal considerada inaceptable como empleado de la Universidad de Wiscosin. Estas reglas están

Sheridan, Jennifer

101

REVISIÓN DE METADATOS EDUCATIVOS Y SU UTILIZACIÓN EN SISTEMAS DE INTERMEDIACIÓN  

Microsoft Academic Search

El proceso de estandarización en las tecnologías de las comunicaciones está desempeñando un papel protagonista en la investigación en el campo de la educación basada en ordenador. Dentro de este proceso uno de los campos más prolíficos es el de la definición de formatos para la descripción de recursos educativos a través de metadatos. Utilizando éstos es posible desarrollar sistemas

Judith Rodríguez; Manuel Caeiro; Juan M. Santos; Luis Anido; ETSI Telecomunicación

102

Il Ruolo del PQA nel sistema AVA Fausto Fan4ni  

E-print Network

Il Ruolo del PQA nel sistema AVA Fausto Fan4ni Università degli Studi grado di vicinanza tra obieEvi prestabili8 e risulta8 oHenu8. (Documento AVA fiducia che gli obieEvi della Qualità saranno soddisfaE. (Documento AVA). Tu

Malerba, Donato

103

Trasgo: Sistema en tiempo de ejecucion para codigo paralelo abstracto y portable  

E-print Network

´on en sistemas h´ibridos y/o heterog´eneos. Palabras clave-- Lenguajes de programaci´on parale- la entorno de ejecuci´on. Hasta ahora han aparecido diversos modelos de programaci´on que han sido adoptados

Llanos, Diego R.

104

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

E-print Network

para aplicar una calidad de servicio (QoS) adecuada. Aunque el control de acceso es una característicaUn Sistema de Control de Acceso para la Distribución de Contenidos Multimedia M. Sánchez1 , G que se intercambie la información necesaria para realizar las tareas de control de acceso, así como

Sánchez Cuenca, Manuel

105

Il sistema agro-alimentare di Roma antica nel Medio Padano  

Microsoft Academic Search

Il sistema agro-alimentare di Roma antica nel Medio Padano (di Cristiana Prestianni) - ABSTRACT: Agrofood system in the region of Italy, called Padania, at the times of Ancient Rome derives from the interlacing between Roman and Celtic elements, which were the two populations presents in the area. This study underlines the roman alimentation, underlining the differences in the classes of

Cristiana Prestianni

2004-01-01

106

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

ERIC Educational Resources Information Center

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

Tunstall, Tricia

2013-01-01

107

PISCIS: Comercio Electrónico basado en Infraestructuras de Certificación Avanzadas y Sistemas de Tarjeta Inteligente  

Microsoft Academic Search

El proyecto PISCIS tiene como principal objetivo rellenar el importante vacío de entornos piloto de comercio electrónico serios que hay en la actualidad. Para ello, y haciendo uso de novedosas propuestas de investigación relacionadas con la seguridad en las comunicaciones, se ha definido una infraestructura completa de certificación sobre la cual se ha desarrollado un sistema de comercio electrónico avanzado,

Óscar Cánovas Reverte; Antonio F. Gómez Skarmeta; Gregorio Martínez Pérez

108

SISTEMAS DE RECOMENDACIÓN EN EL COMERCIO ELECTRÓNICO Y LA E-EDUCACIÓN  

Microsoft Academic Search

Resumen La cantidad de información disponible y su dispersión, hace que los individuos acudan a fuentes de información externas a la hora de tomar decisiones de compra o cuando están buscando información con fines académicos y\\/o investigativos, a fin de obtener recomendaciones que optimicen el uso de sus recursos. En el contexto de internet, se han desarrollado aplicaciones denominadas Sistemas

CLAUDIA CONSTANZA CABAL CRUZ; FRANCISCO J. MARTÍNEZ LÓPEZ; VALENTÍN MOLINA MORENO

2010-01-01

109

KEEL: UNA HERRAMIENTA SOFTWARE PARA EL ANALISIS DE SISTEMAS DIFUSOS EVOLUTIVOS  

E-print Network

problemas de miner´ia de datos (regresi´on, clasificaci´on, asociaci´on, agrupamiento . . . ) mediante la. Palabras Clave: Herramienta software, Miner´ia de Datos, Java, Sistemas Difusos Evolutivos. 1 INTRODUCCI de problemas de miner´ia de datos: Re- gresi´on, clasificaci´on, agrupamiento, asociaci´on, etc

Granada, Universidad de

110

ltima modificacin: 16-11-2012 11512 -ARISO 2 -Arquitectura de Computadores y Sistemas Operativos II  

E-print Network

Última modificación: 16-11-2012 11512 - ARISO 2 - Arquitectura de Computadores y Sistemas: Curso: Créditos: 701 - AC - Departamento de Arquitectura de Computadores 2013 4,5 Idiomas docencia Conocimientos sólidos de programación en C y ensamblador. Conocimientos básicos de: 1. Arquitectura de

Politècnica de Catalunya, Universitat

111

Sistema integrado de avaliação de impacto ambiental aplicado a atividades do Novo Rural  

Microsoft Academic Search

(2) Resumo - O objetivo deste trabalho foi apresentar o sistema de Avaliação Ponderada de Impacto Ambiental de Atividades do Novo Rural (APOIA-NovoRural), que consiste de um conjunto de planilhas eletrônicas (plataforma MS-Excel) que integram 62 indicadores da performance ambiental de uma atividade econômica em um estabelecimento rural. Cinco dimensões de avaliação foram consideradas: ecologia da paisagem, qualidade ambiental (atmosfera,

Geraldo Stachetti Rodrigues; Clayton Campanhola

2003-01-01

112

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

E-print Network

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

Gilbes, Fernando

113

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

Microsoft Academic Search

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

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

114

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

ERIC Educational Resources Information Center

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…

Booth, Eric; Tunstall, Tricia

2014-01-01

115

Propriedades químicas de um Neossolo Quartzarênico sob diferentes sistemas de manejo no Cerrado mato-grossense  

Microsoft Academic Search

Resumo - O objetivo deste trabalho foi avaliar o efeito de diferentes usos da terra e sistemas de manejo do solo, nas características químicas de um Neossolo Quartzarênico, no Cerrado de Mato Grosso. Os tratamentos estudados foram: cerrado nativo; uma pastagem de baixa produtividade com 22 anos de implantação; plantio convencional com 1 e 4 anos de uso e diferentes

Leidivan Almeida Frazão; Marisa de Cássia Píccolo; Brigitte Josefine Feigl; Carlos Clemente Cerri; Carlos Eduardo Pellegrino Cerri

2008-01-01

116

Sistemas de explot ação de seringueira utilizados em clones asiáticos Prang Besar no Oeste paulista  

Microsoft Academic Search

Resumo - O objetivo deste trabalho foi avaliar o desempenho produtivo e os aspectos fisiológicos e econômicos de quatro clones asiáticos Prang Besar de seringueira (Hevea brasiliensis (Willd. ex A. Juss.) Muell. Arg.), sob diferentes sistemas de sangria. O experimento foi instalado na Fazenda Santa Gilda, Município de Guararapes, SP, em delineamento de blocos ao acaso, com parcelas subdivididas no

Fazenda Santa

117

PLANIFICACIÓN COLABORATIVA Y UBICUA PARA EL APRENDIZAJE DEL DISEÑO EN EL SISTEMA DOMOSIM-TPC  

Microsoft Academic Search

Resumen En este artículo, como punto de partida, describimos parte de nuestra experiencia en un caso de estudio particular y sobre un e scenario real en el que se trabaja para resolver una cierta problemática asociada al aprendizaje del diseño domótico. Para este caso de estudio desarrollamos un sistema para el aprendizaje colaborativo basado en los paradigmas de interacción asistida

Miguel A. Redondo; Ana I. Molina; Crescencio Bravo; José Bravo; Manuel Ortega

118

Metodología para el Análisis y Diseño de Sistemas Multi Agente Robóticos: MAD-Smart  

Microsoft Academic Search

RESUMEN En este artículo se describe la metodología para el desarrollo de Sistemas Multi-Agente Robóticos MAD-Smart y se desarrollan algunos ejemplos para visualizar algunas de sus car acterísticas. La metodología buscar dar cobertura en la fase de con ceptuación, análisis y diseño mediante la definición de un conj unto de actividades que ayudan al desarrollador a entender mejor el problema

Marcela Vallejo Valencia; John Fredy; Ochoa Gómez; Términos Generales

119

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

Microsoft Academic Search

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

J. Cuadrado; D. Dopico

120

Métodos Rápidos para el cálculo del Slack Stealing Exacto y Aproximado para Aplicaciones en Sistemas Embebidos  

Microsoft Academic Search

Resumen: Desde los comienzos de los años 90 se vienen desarrollando diversos métodos aplicables a sistemas de tiempo real (STR) duro con el objetivo de aportar flexibilidad a los mismos sin perder la necesaria robustez que debe caracterizarlos. Las sobrecargas producidas por los mecanismos de tolerancias a las fallas, la atención de tareas esporádicas y de tiempo real blando, conjuntamente

José M. Urriza; Javier D. Orozco

121

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

E-print Network

Clasificación de las amenazas a la seguridad en sistemas RFID - EPC Gen2 Joan Melià-Seguí, Joaquin este artículo una vista rápida a la familia de amenazas a las que se enfrenta la tecnología EPC. Index las amenazas de seguridad. Como sucede en otras tecnologías emergentes, la falta de seguridad y las

Garcia-Alfaro, Joaquin

122

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO SISTEMA DE BIBLIOTECAS E INFORMAO  

E-print Network

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO SISTEMA DE BIBLIOTECAS E INFORMAÇÃO Série Manual de ELABORAÇÃO E NORMALIZAÇÃO DE TRABALHOS DE CONCLUSÃO DE CURSO Rio de Janeiro 2 0 1 1 iBI Série Manual de Abrantes Cotta de Mello #12;REITOR DA UNIVERSIDADE FEDERAL DO RIO DE JANEIRO Prof.Aloisio Teixeira

Liu, I-Shih

123

AMIR-ST: Propuesta de una Aproximación Metodológica para la Ingeniería de Requisitos de Sistemas Telemáticos  

Microsoft Academic Search

Resumen En el presente artículo se propone a AMIR-ST (Aproximación Metodológica para la Ingeniería de Requisitos de Sistemas Telemáticos), como un conjunto articulado y bien balanceado de métodos para el flujo de trabajo de Ingeniería de Requisitos, que constituye un proceso de desarrollo fundamentado en la interacción continua con los usuarios, la obtención del Modelo de Negocio, el desarrollo de

Mario Fernando; Solarte Sarasty

124

Dept. de Formation Doctorale en Informatique Doctorado en Ingenieria UFR IEEA Depto. de Sistemas y Computacion  

E-print Network

D´ept. de Formation Doctorale en Informatique Doctorado en Ingenier´ia UFR IEEA Depto. de Sistemas l'Universit´e de Lille 1 - Sciences et Technologies and Doctor en Ingenier´ia de la Universidad de

Paris-Sud XI, Université de

125

INGENIERIA TECNICA EN INFORMATICA DE SISTEMAS Curso Academico 2007/2008  

E-print Network

sistema que evoluciona en el tiempo. Dadas unas condiciones iniciales y una realimentaci´on, los filtros ampliando la incertidumbre de la posici´on real del objeto en funci´on del tiempo transcurrido desde su´otesis de continuidad . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2. M´etodos de predicci

Pantrigo Fernández, Juan José

126

Estudio experimental de m'etodos de Jacobi bilaterales en sistemas Intel \\Lambday  

E-print Network

Estudio experimental de m'etodos de Jacobi bilaterales en sistemas Intel \\Lambday Domingo Gim'enez C'anovas z 1 Introducci'on En este trabajo se realiza un estudio experimental de diferentes m'etodos]. Hay multitud de m'etodos para resolver el problema del que nos ocupamos ([2, 3, 4, 5, 6, 7, 8, 9]) y

Giménez, Domingo

127

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

Microsoft Academic Search

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

Denis Boizan Romero

2012-01-01

128

El sistema internacional y el cambio medioambiental en el siglo xx  

Microsoft Academic Search

En este artículo se analiza una vertiente de la relación entre el sistema internacional y el cambio medioambiental. Los especialistas en ciencias políticas han creado recientemente un nuevo campo llamado «seguridad medioambiental» y sostienen que las presiones medioambientales aumentan los riesgos para la seguridad. Aquí se prefiere argumentar al revés: son los riesgos para la seguridad los que aumentan la

John R. McNeill

2002-01-01

129

Sistema informtico para gestionar la Garanta de Calidad de centros y titulaciones  

E-print Network

componentes de software libre Francisco Grimaldo, Jesús Santiago Aupi, Ricardo Ferrís, Vicente Cerverón desarrollo de un Sistema de Garantia Interna de Calidad (SGIC) para los centros y las titulaciones de laSQL. · Arquitectura web: J2EE, Spring, Hibernate, JavaMail... Figura 2. Proceso de orientación al estudiante en XPDL

Grimaldo, Francisco

130

Antivirus agent, Ro 09-0410, binds to rhinovirus specifically and stabilizes the virus conformation.  

PubMed

The antiviral mechanisms of Ro 09-0410 (4'-ethoxy-2'-hydroxy-4,6'-dimethoxychalcone), which inactivates rhinovirus exclusively, have been investigated. It was suggested that Ro 09-0410 bound to human rhinovirus type 2 (HRV-2) and made it inactive, since the reduced infectivity was completely restored to original levels by extraction of the agent with chloroform [H. Ishitsuka, Y. Ninomiya, C. Ohsawa, M. Fujiu, and Y. Suhara (1982) Antimicrob. Agents Chemother. 22, 617-621]. This was confirmed using radioactively labeled Ro 09-0410 and HRV-2. HRV-2 was inactive while bound to the agent, whereas a subline of HRV-2 resistant to the agent had no binding site for the agent. Ro 09-0410 appeared to bind to some specific site(s) on the virion of susceptible virus strains. Treatment of rhinovirus at pH 5 or 56 degrees caused a change of the virion size and greatly reduced its infectivity. Ro 09-0410 could no longer bind to HRV-2 after such treatment. On the other hand, when the virion bound with Ro 09-0410 was treated at pH 5 or 56 degrees, the Ro 09-0410 remained bound and the conformational alteration of the virion did not take place. Furthermore, Ro 09-0410 protected HRV-2 from the reduction of infectivity caused by mild acid or heat treatment, as revealed by infectivity measurements after extraction of the agent with chloroform. These results suggest that Ro 09-0410 binds to the HRV-2 virion and prevents viral replication in the cell. PMID:6100571

Ninomiya, Y; Ohsawa, C; Aoyama, M; Umeda, I; Suhara, Y; Ishitsuka, H

1984-04-30

131

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

E-print Network

of Hong Kong {mzheng,pclee,cslui}@cse.cuhk.edu.hk Abstract. With the rising threat of smartphone malware to defend against smartphone malware. Thus, how to assess the effec- tiveness of these defense mechanisms of smartphone malware becomes more formidable. TGDaily [49] reported that there was a 33% increase in smartphone

Lui, John C.S.

132

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

E-print Network

sensitive information such as bank log-ins and credit cards. As computer systems become more difficult in prevalence, both abso- lutely, and relative to other forms of web-based mal- ware. Fake AV currently accounts including spam web sites and on-line Ads. These attacks account for 60% of the malware dis- covered

Tomkins, Andrew

133

Antivirus antibody-dependent cell-mediated cytotoxicity during murine cytomegalovirus infection.  

PubMed Central

BALB/c mice infected with murine cytomegalovirus were studied to determine whether antibody-dependent cell-mediated cytotoxicity contributes to the immune control of this infection. Antibody-dependent killer cells from uninfected mice were used as effector cells to assay for antibody in sera of infected mice. Secondary immune sera were found to contain both cytomegalovirus-specific and autoreactive antibodies. After primary infection only cytomegalovirus-specific antibodies were found. These were detected by antibody-dependent cell-mediated cytotoxicity within 8 to 10 days after onset of infection, but usually not until day 21, by a neutralizing antibody assay. Antibody titers were about 10-fold higher by antibody-dependent cell-mediated cytotoxicity than by neutralization. The results indicate that cellular immunity to cytomegalovirus infection includes an antibody-dependent cell-mediated cytotoxicity response which is likely to be highly efficient and may contribute significantly to control of both acute and later stages of infection. PMID:6253395

Manischewitz, J E; Quinnan, G V

1980-01-01

134

Interferon s: the modulators of antivirus, antitumor, and immune responses  

Microsoft Academic Search

IFN-s, including IFN-1, IFN-2, and IFN-3, also known as IL-29, IL-28A, or IL-28B, are a newly described group of cytokines distantly related to the type I IFNs and IL-10 family members. The IFN-R complex con- sists of a unique ligand-binding chain, IFN-R1 (also designated IL-28R), and an accessory chain, IL-10R2, which is shared with receptors for IL-10-related cyto- kines. IFN-s

Mingcai Li; Xiaojin Liu; Yanchun Zhou; Shao Bo Su

2009-01-01

135

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)

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.

Callegari, Nelson, Jr.

2006-12-01

136

Sesin 3 -Sistemas Distribuidos y Aplicaciones Mdicas 89 Escuela de Computacin Universidad Central de Venezuela UCV  

E-print Network

Computación Universidad Central de Venezuela UCV #12;Sesión 3 - Sistemas Distribuidos y Aplicaciones Médicas 91 Escuela de Computación Universidad Central de Venezuela UCV #12;II Simposio Científico y Tecnológico en Computación 201292 Escuela de Computación Universidad Central de Venezuela UCV #12;Sesión 3

Coto, Ernesto

137

Sinais e Sistemas -1 semestre de 2013/2014 Classificaes finais  

E-print Network

Sinais e Sistemas - 1º semestre de 2013/2014 Classificações finais Número Nome Teste 1 Teste 2.500 8.660 9 63187 Tiago Filipe Coelho Simões 3.630 4 63192 João Filipe Abreu de Paulo e Cunha 9.667 7 65326 Catarina José Afonso Dias 11.767 7.375 3.000 9.132 9 65347 Fábio Jorge Pedro Coelho 65357

Almeida, Luis B.

138

Sinais e Sistemas -2 semestre de 2013/2014 Classificaes aps o 2 teste  

E-print Network

Sinais e Sistemas - 2º semestre de 2013/2014 Classificações após o 2º teste Número Nome Teste 1 65326 Catarina José Afonso Dias 5.900 9.148 7.849 8 65347 Fábio Jorge Pedro Coelho 0 65349 Fernando Abreu Tavares Delgado Alves 5.300 2.120 2 69872 João Maria de Barros Inácio Almeida e Brito 0 69973

Almeida, Luis B.

139

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

NASA Astrophysics Data System (ADS)

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

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

2003-08-01

140

USOS EXPERIMENTALES DE ESTÁNDARES EDUCATIVOS EN EL SISTEMA  

Microsoft Academic Search

El principal objetivo del proyecto es crear un entorno de investigación sobre sistemas de aprendizaje personalizado en la Web (e-learning) basados en estándares educativos (e.g. IMS) y utilizando tecnologías de lenguajes de marcas (e.g. XML). Con este punto de partida se pretende obtener un entorno de aprendizaje adaptado a las necesidades del alumno que considere, por lo menos, tres

Pilar Sancho; Borja Manero; Baltasar Fernández-Manjón

141

ARQUITECTURA MULTI-AGENTE SEGURA BASADA EN UN SISTEMA DE IMPLEMENTACIÓN AUTOMÁTICA DE PROTOCOLOS DE SEGURIDAD  

Microsoft Academic Search

En este artículo presentamos una Arquitectura Multi-agente segura basada en un nuevo concepto de implementación de servicios de seguridad. La idea se basa en incorporar a nuestros agentes una capa de seguridad denominada S.I.A.P.S (Sistema de Implementació n Automática de Protocolos de Seguridad). Esta capa adicional en el software del agente proporciona un código único, versátil y flexible capaz de

Luis Mengual; Nicolás Barcia; Jesús Bobadilla; Ernesto Jiménez; Julio Setién; Javier Yágüez

2000-01-01

142

Paula Salgado Lucena Rodrigues Um Sistema de Gerac~ao de Express~oes Faciais  

E-print Network

Rio de Janeiro Dezembro de 2007 #12;Paula Salgado Lucena Rodrigues Um Sistema de Gera¸c~ao de Express Centro T´ecnico Cient´ifico -- PUC­Rio Rio de Janeiro, 20 de Dezembro de 2007 #12;Todos os direitos´atica pela PUC-Rio (Pon- tif´icia Universidade Cat´olica do Rio de Janeiro). Ao longo do Doutorado atuou como

143

Sistemas Distribuidos e Redes de Sensores Aula 6,5...: Outros Padr~oes disseminac~ao e roteamento  

E-print Network

Sistemas Distribu´idos e Redes de Sensores Aula 6,5...: Outros Padr~oes ­ dissemina¸c~ao e roteamento abril de 2013 Sistemas Distribu´idos e Redes de Sensores #12;Observa¸c~oes sobre o padr´idos e Redes de Sensores #12;Algoritmo probe/echo Um probe ´e uma mensagem enviada por um n´o para o seu

Rodriguez, Noemi

144

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

NASA Astrophysics Data System (ADS)

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

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

2003-08-01

145

Sinais e Sistemas -2013/2014 -1 semestre Classificaes do 2 teste  

E-print Network

Sinais e Sistemas - 2013/2014 - 1º semestre Classificações do 2º teste Número Nome Versão 2.0 1.3 0 Matos B e c a 2.000 1.300 -0.175 0.000 0.000 1.0 0.5 1.0 0.6 0.3 0.0 1.2 1.4 0.0 0.0 0.0 9.125 53750 Vasco André Meireles Escaleira 54532 Filipe André Rodrigues Henriques Martinho A d e d a -0.333 -0

Almeida, Luis B.

146

Deux lacs pour contrôler la scissure porte principale  

Microsoft Academic Search

Herein we report a technique that allows a rapid and selective clamping of the left and right glissonian sheats and that secures the opening of the main fissure.The posterior face of segment IV capsula is opened immediately above the hilum on the left side of the gallbladder fossa. The tip of a right angled dissector is gently pushed in the

K Boudjema; L. A Veilhan; E Dupont-Bierre; M Lakehal

2002-01-01

147

ltima actualizacin: 5 de abril de 2013 SISTEMA DE GARANTA DE CALIDAD DE LOS TTULOS DE LA UNIVERSIDAD  

E-print Network

máximo órgano encargado de la planificación y control de la calidad en la Universidad es el Comité de.urjc.es/ordenacion_docente/sistema_interno/plan_estrategico.pdf). b) Realizar el seguimiento y control de la ejecución de la Política de Calidad y de los Objetivos de�ltima actualización: 5 de abril de 2013 SISTEMA DE GARANTÍA DE CALIDAD DE LOS TÍTULOS DE LA

Rey Juan Carlos, Universidad

148

Sesso Especial: Novas Tendncias em Modelagem do Sistema Terrestre (New Trends on Land System Modelling) Coordenadores: Gilberto Cmara (INPE) e Giovana Espindola (IPO-GLP/INPE)  

E-print Network

Sessão Especial: Novas Tendências em Modelagem do Sistema Terrestre (New Trends on Land System múltipla escala, obteremos novas informações sobre os processos que comandam as mudanças do sistema

149

Los impuestos en la época de la Independencia, su impacto social, evolución e implicaciones en el sistema tributario actual  

Microsoft Academic Search

resumen la evolución histórica de los tributos en colombia se encuentra inmersa en una serie de acontecimientos que hacen parte de la historia patria. el sistema impositivo colombiano fue implementado por españa durante la colonización a semejanza del aplicado en dicho país; el incremento de los impuestos para financiar sus actividades y las guerras que sostenía por la lucha de

Constanza Loreth Fajardo Calderón; Dora Cecilia Suárez Amaya

2012-01-01

150

La efectividad de las redes de protección social: El rol de los sistemas integrados de información social en Brasil  

Microsoft Academic Search

Este trabajo forma parte de una serie de estudios realizados en el marco del proyecto “La efectividad de las redes de protección social: El rol de los sistemas integrados de información social”. Los estudios de caso fueron realizados en el período 2007-08. Se agradecen los comentarios de Amélia Cohn, Lúcia Maria Modesto Pereira y Paulo de Martino Jannuzzi. El texto

Leticia Bartholo; Ricardo Rodrigues Dutra

2011-01-01

151

Optimización de herramientas multiobjetivo para la toma de decisiones de inversión en sistemas aislados sostenibles de energía  

Microsoft Academic Search

El problema multiobjetivo que nos ocupa en esta investigación es el de la provisión de energía eléctrica a una localidad perteneciente a zonas aisladas o que estén alejadas del sistema que interconecta a una región o un país, en Colombia se denominan zonas no interconectadas (ZNI). Las cuales, aunque representan 4,11% de la población nacional, abarcan cerca del 66% de

David Tobón Orozco; Sergio Agudelo Flórez

152

Desarrollo del sistema financiero y crecimiento económico.Una aproximación a partir del caso boliviano: 2000-2009  

Microsoft Academic Search

De acuerdo a la teoría económica y la literatura empírica, el sistema por su rol de intermediación financiera, cumple un importante papel en la promoción del crecimiento económico. Sin embargo, en el caso boliviano la evidencia empírica existente es limitada, por lo cual este trabajo tiene como propósito averiguar mediante la utilización de métodos estadísticos y modelos VAR la relación

Julio Humeréz Quiroz; Ernesto Yáñez Aguilar

2011-01-01

153

SISTEMAS DE INFORMAÇÕES NO GERENCIAMENTO DE RECURSOS HÍDRICOS NO BRASIL E RIO GRANDE DO SUL: BREVES CONSIDERAÇÕES  

Microsoft Academic Search

Resumo - A água é um recurso natural essencial a todos, surgindo assim a necessidade de gerenciá-la adequadamente para que se possa obter o seu uso sustentável. Sabendo-se que um grande número de informações são necessários para gerenciar os recursos hídricos, o adequado uso da tecnologia da informação e, mais especificamente, de sistemas de informação elaborados para esta função, certamente

Letícia Coradini Frantz; Jussara Cabral Cruz; Carin Maria Schmitt

154

Sinais e Sistemas -2013/2014 -1 semestre Classificaes do exame e das repeties de testes  

E-print Network

Sinais e Sistemas - 2013/2014 - 1º semestre Classificações do exame e das repetições de testes.2 0.8 0.5 0.5 0.5 0.8 0.8 0.7 0.7 0.7 1.2 Classificação P1 P2a P2b P2c P2d P2e P3 P4 P9 P10 P11 P12 P1 P2a P2b P2c P2d P2e P3 P4 P5.1 P5.2 P5.3 P5.4 P6 P7.1 P7.2 P7.3 P8 P9 P10 P11 P12 P13.1 P13.2 P14

Almeida, Luis B.

155

Sinais e Sistemas -2013/2014 -1 semestre Classificaes do 1 teste  

E-print Network

Sinais e Sistemas - 2013/2014 - 1º semestre Classificações do 1º teste Número Nome Versão 2.0 2.0 0.4 0.4 0.4 0.4 0.4 2.0 2.0 2.0 2.0 2.0 1.0 1.0 0.70 1.3 20.000 P1 P2 P3a P3b P3c P3d P3e P4 P1 P2 P3a P3b P3c P3d P3e P4 P5 P6 P7.1 P7.2 P7.3 P8 P9.1 P9.2 Desconto* Total 24210 João Pedro Collard Bovy de

Almeida, Luis B.

156

Sinais e Sistemas -2013/2014 -2 semestre Classificaes do 1 teste  

E-print Network

Sinais e Sistemas - 2013/2014 - 2º semestre Classificações do 1º teste Número Nome Versão 2.0 2.0 0.333 0.333 0.333 0.333 0.333 0.333 2.000 3.0 2.5 1.5 2.0 1.0 2.0 20.0 P1 P2 P3a P3b P3c P3d P3e P3f P4 P1 P2 P3a P3b P3c P3d P3e P3f P4 P5 P6 P7.1 P7.2 P7.3 P8 Total 24210 João Pedro Collard Bovy de Vilhena

Almeida, Luis B.

157

Sinais e Sistemas -2013/2014 -2 semestre Classificaes do 2 teste  

E-print Network

Sinais e Sistemas - 2013/2014 - 2º semestre Classificações do 2º teste Atenção! Número Nome (Total.5 20.0 P1a P1b P1c P1d P1e P1f P1g P1h P1i P2 P3 P4 P1a P1b P1c P1d P1e P1f P1g P1h P1i P2 P3 P4 P5 P6 Fernandes 5.264 B e c g 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 -0.286 2.0 -0.25 0.5 0.6 0.5 0

Almeida, Luis B.

158

Sinais e Sistemas -2013/2014 -2 semestre Classificaes do exame e das repeties de testes  

E-print Network

Teixeira 65096 Flávio Leal Jovchelevitch 65326 Catarina José Afonso Dias A g c v v v v e f v f v v c d b eSinais e Sistemas - 2013/2014 - 2º semestre Classificações do exame e das repetições de testes9c P9d P9e P10.1 P10.2 P10.3 P10.4 P11.1 P11.2 P1 P2 P3a P3b P3c P3d P4 P5 P6.1 P6.2 P7.1 P7.2 P7

Almeida, Luis B.

159

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

NASA Astrophysics Data System (ADS)

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

Ferreres Sabater, Agustin

160

AVALIA?ˆO DA FERTILIDADE DOS SOLOS DE SISTEMAS AGROFLORESTAIS COM CAFEEIRO (Coffea arabica L.) EM LAVRAS-MG  

Microsoft Academic Search

RESUMO ñ Com o objetivo de avaliar a fertilidade dos solos em um sistema agroflorestal composto por cafeeiros (Coffea arÆbica L. ñ Mundo Novo), ingazeiros (Inga vera Willd) e grevÌleas (Grevilea robusta A. Cunn), situado em Lavras, Minas Gerais, foi instalado o presente experimento. Usou-se um delineamento experimental inteiramente casualizado com trŒs tratamentos e sete repetiÁies. Os tratamentos foram: a)

Bruno Grandi Salgado; Renato Luiz Grisi Macedo; Maria InŒs; Nogueira Alvarenga; Nelson Venturin

2006-01-01

161

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

ERIC Educational Resources Information Center

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…

Benson, Allen C.

162

A mathematical model to study the effect of hepatitis B virus vaccine and antivirus treatment among the Canadian Inuit population  

Microsoft Academic Search

The prevalence of hepatitis B among the Canadian Inuit population is 4%. This study will use a mathematical model to compare\\u000a the roles of vaccination and therapy to predict future prevalence and incidence among the Canadian Inuit population for the\\u000a next 50 years. We applied a mathematical model developed by Medley et al. (Nat Med 7(5):619–624, 2001), combined with data\\u000a on

C. O’Leary; Z. Hong; F. Zhang; M. Dawood; G. Smart; K. Kaita; J. Wu

2010-01-01

163

Transferências orbitais dentro do modelo quase bicircular no sistema Terra-Lua-Sol  

NASA Astrophysics Data System (ADS)

O problema quase bicircular planar consiste na determinação da dinâmica de um corpo, de massa desprezível, que se move sob o campo gravitacional de três corpos. No caso estudado, o quarto corpo é considerado um satélite artificial e os demais são a Terra, a Lua e o Sol, formando o sistema de três corpos. Este modelo permite a construção de uma hamiltoniana similar a do problema restrito de três corpos (PRTC), incluindo termos periódicos não autônomos, provenientes da presença do Sol, portanto pode ser entendido como uma perturbação ao PRTC. Suas órbitas periódicas aparecem isoladas e possuem o mesmo período solar. Os pontos de equilíbrio colineares possuem o mesmo caráter de estabilidade linear dos pontos lagrangianos (L1, L2 e L3) do PRTC, sendo do tipo sela x centro x centro, instável na direção x e estáveis nas direções y e z. As órbitas periódicas tridimensionais ao redor do ponto colinear é chamada órbita Halo. O objetivo deste trabalho é determinar órbitas de transferências de baixo consumo de combustível para um veículo espacial partindo de uma órbita de estacionamento ao redor da Terra em direção a uma órbita Halo do ponto L1, situado entre a Terra e Lua. Esta tarefa pode ser transformada no problema de valor de contorno: dado um ponto inicial na órbita de estacionamento, um ponto final na órbita halo e o tempo de transferência, deseja-se obter a trajetória que liga estes dois pontos e que minimize os incrementos de velocidade do veículo. Essas transferências são realizadas baseadas no método de Lambert e analisadas de modo a fornecer um baixo consumo. Posteriormente, é feita uma comparação de consumo com as órbitas de transferência equivalentes do PRTC.

Corrêa, A. A.; de Almeida Prado, A. F. B.; Stuchi, T. J.; Beaugé, C.

2003-08-01

164

Desafíos metodológicos de los Sistemas de Evaluación e Incentivos en Educación. El caso del SNED en Chile (Methodological challenges for evaluation and incentive systems in education. The case of SNED in Chile)  

Microsoft Academic Search

En este trabajo se analizan los desafíos más importantes que enfrentan los sistemas de evaluación e incentivos, esto es, qué elementos considerar en la medición del desempeño del establecimiento escolar y cómo comparar entre establecimientos educacionales que atienden a una población de distinto nivel socioeconómico. Este análisis es fundamentalmente metodológico y se realiza respecto del Sistema Nacional de Evaluación del

Alejandra Mizala; Pilar Romaguera

2003-01-01

165

PUC Sistema de Comunicaes Pessoais para as Redes de Prxima Gerao Alberto Rodrigues Silva, Joo Patriarca, Joo Clemente, Paulo Chainho, Paulo Ferreira  

E-print Network

1 PUC ­ Sistema de Comunicações Pessoais para as Redes de Próxima Geração Alberto Rodrigues Silva para as Redes de Próxima Geração". O artigo tem como principal objectivo apresentar a visão geral do, a substituir as suas redes antigas (analógicas e ou digitais, orientadas fundamentalmente por serviços de voz

da Silva, Alberto Rodrigues

166

Un reattore prototipoad acqua bollente e refrigeratocon un sistema a ricircolazionenaturale. I1 vessel separato da un corpo cilindrico ove awiene la separazione acqua vapore da un opportuno  

E-print Network

del reattore, per una potenza elettrica complessiva di 100 kW,sono alimentati da un'energia Eh sia degradatain calore. 2) Dirnensionare il sistema di raffreddamento. La potenza termica generata potenza termica viene quindi asportata da olio minerale in circuito chiuso (la piastrina di rame

Di Pillo, Gianni

167

Sistema de control basado en fusion de GPS y odometr´õa para la navegacion autonoma de veh´õculos en plantaciones de vinedos, frutales y campo abierto  

Microsoft Academic Search

En este trabajo se propone una fusion de estados obtenidos a partir de dos sensores, odometro y GPS, funcionando cada uno con su respectivo tiempo de muestreo, pudiendo coincidir o no con el tiempo de muestreo del sistema controlador. Se pretende que un robot movil navegue en forma autonoma, con alto nivel de robustez, por el centro de corredores formados

Franco Penizzotto; Orlando Alvarez; Daniel Patino; Ricardo Carelli

168

UmSistema Sistema AnimaoBaseado  

E-print Network

. #12; lMovies and television -- Terminator 2, Titanic, StarWars and others. lMedicine -- study to correctly represent the mainMoCap abstractions and entities. l Used paradigm: digital video editing + UNIX l Rendering: OpenGL l Standard GUI facilities: XForms l Real­time animation preview l Tested

169

Il sistema di crittograa RSA Il teorema di Fermat dice che, se p primo e a mod p 6= 0, allora  

E-print Network

Il sistema di crittogra�a RSA Il teorema di Fermat dice che, se p è primo e a mod p 6= 0, allora ap. Dal teorema di Fermat otteniamo un importante risultato: Se n = p � r con p e r due numeri primi, poniamo (n) = (p - 1)(r - 1) (questa è detta la funzione di Eulero). Dal teorema di Fermat si ottiene che

Catenacci, Roberto

170

VARIA?'ES GEN…TICAS PARA CARACTER?STICAS DO SISTEMA RADICULAR DE MUDAS DE BARU (Dipteryx alata Vog.)1  

Microsoft Academic Search

RESUMO ñ Este estudo objetivou estimar os par‚metros genØticos relativos ‡ qualidade do sistema radicular de mudas de baru. Para isso, foram utilizadas mudas provenientes de sementes colhidas em 21 Ærvores-matriz de polinizaÁªo livre no MunicÌpio de CapinÛpolis, Minas Gerais. Quarenta e cinco dias apÛs a germinaÁªo, as imagens das raÌzes de 20 mudas de cada progŒnie foram obtidas por

Adelson Nascimento Oliveira; Ana Carolina da Silva; Carlos da Silva Rosado; Crespo Rodrigues

2006-01-01

171

Positive Predictive Value of ICD–9th Codes for Upper Gastrointestinal Bleeding and Perforation in the Sistema Informativo Sanitario Regionale Database  

Microsoft Academic Search

We identified patients whose records in the Sistema Informativo Sanitario Regionale database in the Italian region of Friuli–Venezia Giulia showed a code of upper gastrointestinal bleeding (UGIB) and perforation according to codes of the International Classification of Diseases (ICD)-9th revision. The validity of site- and lesion-specific codes (531 to 534) and nonspecific codes (5780, 5781, and 5789) was ascertained through

Chiara Cattaruzzi; Maria Grazia Troncon; Luisa Agostinis; Luis A Garc??a Rodr??guez

1999-01-01

172

NIDO: Navegación e interacción con el usuario en el desarrollo de sistemas de información Web: Métodos, Técnicas y Herramientas TIC2003-00369  

Microsoft Academic Search

NIDO (Navegación e Interacción con el usuario en el Desarrollo de sistemas de Información Web: Métodos, Técnicas y Herramientas) is a research project with two main lines of research. The first one is to continue with the research developed in the coordinated projects MENHIR (TIC97-0593-C05-03) and DOLMEN (TIC2000-1673-C06-03), while the second one is related to the opening of new research

Jesús Torres

173

REDES CELULARES DE TERCERA GENERACIÓN: CDMA2000 Y WCDMA THIRD GENERATION CELLULAR NETWORKS: CDMA2000 AND WCDMA  

Microsoft Academic Search

RESUMEN. Este artículo ofrece un panorama general de los sistemas de comunicaciones móviles celulares de tercera generación (3G) que han tenido una mayor aceptación (CDMA2000 y WCDMA) en el mercado, y una comparación basada en los puntos principales donde los sistemas difieren que indica las ventajas y desventajas de cada uno. Los sistemas de comunicaciones móviles celulares 3G ofrecen mayores

Jaime Sánchez García; Myriam Meza Múgica

2005-01-01

174

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

PubMed

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

Aké-Castillo, José A

2011-07-01

175

ORGANIZZAZIONE DEL SISTEMA UNIVERSITARIO  

E-print Network

sperimentare propri modelli funzionali e organizzativi, ivi comprese modalita` di composizione e costituzione, provvedono, entro sei mesi dalla data di entrata in vigore della presente legge, a modificare i propri

Segatti, Antonio

176

vent un abri nocturne, par exemple sous des feuilles. C'est la principale raison pour  

E-print Network

at the fallow site and 112 at the suburban site. The share of endangered species was high- est at the suburban of species, and the great share of endangered species and ecologically specialized species at the urban site in a suburban area of Berlin. Twenty-eight species of aculeata were found at the bee meadow site, 51 species

Boyer, Edmond

177

Principales resultados del Estudio Nacional de Exámenes de pulmón (NLST): Síntesis  

Cancer.gov

El 4 de noviembre de 2010, el Estudio Nacional de Exámenes de Pulmón dio a conocer resultados iniciales que indican que hubo 20% menos muertes por cáncer de pulmón entre los participantes del estudio evaluados con tomografía computarizada espiral de baja dosis (también conocida como tomografía computarizada helicoidal) que en los participantes que fueron evaluados con radiografías de pecho.

178

Clasificación de petróleos mexicanos mediante cromatografía de gases y análisis de componentes principales  

Microsoft Academic Search

Resumen. En el presente trabajo se evaluó la metodología tradicional para caracterizar y clasificar petróleos a partir de los hidrocarburos con 7 átomos de carbono. Con esta finalidad se utilizó un juego de datos cromatográficos de 43 muestras de aceites colectados en tres importantes áreas productivas de México. Se encontró que dicha metodología no permite clasificar claramente las muestras de

Comunicación Técnica; Nora K. Cañipa-Morales; Carlos A. Galán-Vidal; José A. Pérez-Ortiz; Mario A. Guzmán-Vega

2003-01-01

179

Consejo Social Principales acuerdos de las sesiones del pleno del Consejo Social durante el curso  

E-print Network

Neurociencias. Máster Universitario en Cognición y Evolución Humana. Máster Universitario en Ingeniería Geografía. Doctorado en Microbiología Ambiental y Biomédica. Doctorado en Neurociencias. Doctorado en

Oro, Daniel

180

400 J. CERF. --:. ETUDR COMPARATIVR DES PRINCIPALES CONSTANTES TUDE COMPARATIVE DES PRINCIPALESCONSTANTES  

E-print Network

colostrum, est, en général, assez faible dans les laits de vaches fraîches à lait; puis il augmente dépasser même 50 0/0')) b) « Le taux de matières protéiques totales, très élevé dans le colostrum, tombe.les..» 1 c) « Les cendres brutes" totales, très élevées dans le colostrum, s'abaissent rapidement jusqu

Paris-Sud XI, Université de

181

Mejora docente y adaptacin al Espacio Europeo de Educacin Superior Tabla II. Principales resultados conseguidos  

E-print Network

) entre las instituciones miembros del CBUC (17/10/2011); Interface renovada y mejorada del repositorio institucional (e-Repositorio) (21/12/2011); Versión de la web Biblioteca y TIC para dispositivos móviles (24

Geffner, Hector

182

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

Microsoft Academic Search

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

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

2007-01-01

183

CRECIMIENTO Y SUPERVIVENCIA DE JUVENILES DE Argopecten purpuratus EN SISTEMAS DE FONDO Y SUSPENDIDO EN LA ZONA DE CASMA, PERÚ GROWTH AND SURVIVAL OF JUVENILES OF Argopecten purpuratus IN BOTTOM AND SUSPENDED CULTURES IN CASMA, PERU  

Microsoft Academic Search

individuos\\/m2. Cada 2 semanas se colectaron 20 individuos y se registro la altura (mm) y peso de partes blandas (gramos) y mensualmente el número de muertos. Adicionalmente se registró información sobre los costos de producción para comparar la rentabilidad en ambos sistemas. Al final del experimento las tallas y pesos en el cultivo suspendido fueron mayores que en fondo y

Juan Arturo; Alcázar Zamora; Jaime Mendo Aguilar

184

Un nou mètode de restitució cartogràfica: cartografia digital tridimensional com a base de dades per a disseny assistit a l'enginyeria civil  

Microsoft Academic Search

Mitjançant la fotogrametria assistida per sistema gràfic digital, s'ha establert un mètode de restitució tridimensional que està en plena producció a l'Institut Cartogràfic de Catalunya. Aquest sistema serveig principalment com a base de dades per al disseny assistit a l'enginyeria civil. L'objectiu és aconseguir-ne un sistema integrat que comprengui des del recull de les dades fins a la realització dels

Jordi Sendra

1987-01-01

185

Arquitectura de un Sistema Operativo Web Basado en Sistemas Multiagentes  

Microsoft Academic Search

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

Jose Aguilar; Niriaska Perozo; Edgar Ferrer; Juan Vizcarrondo

2004-01-01

186

Sistema de Gravacao Dados Digitais  

NASA Astrophysics Data System (ADS)

ABSTRACT. A Large data ( 3.7 Gigabytes/tape) recording system using commercial videocassette recorders with digital data interface is being developed at INPE. The digital interface converts the data into NTSC video format for recording. This high-speed system is planned for use in stratospheric balloon experiments. tt'Oit : DATA RECORDING - INSTRUMENTS

Neri, J. A. C. F.; Jayanthi, U. B.; Alves, A. M. R.

1990-11-01

187

Patologie del sistema nervoso vegetativo  

Microsoft Academic Search

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

Jessica Mandrioli; Pietro Cortelli

188

ANÁLISIS CUANTITATIVOS DE LOS PRINCIPALES CONSTITUYENTES QUÍMICOS DE RAÍCES DE Echinacea purpurea Y E. angustifolia PRODUCIDAS EN COSTA RICA1  

Microsoft Academic Search

Quantitative analyses of the main che- mical constituents in the roots of Echinacea purpurea and E. angustifolia produced in Cos- ta Rica. Free phenylpropanoids (chlorogenic and cichoric acids), and a glycosidic (echinecoside), as well as the alkamides, present in root extracts of the medicinal plants Echinacea purpureaand E. angustifolia produced in 3 different locations of Costa Rica (Los Santos at

Jorge Loaiza; Roberto Valverde; Gerardo Rodríguez; Jorge Molina

189

2000-2010 : Principales volutions et avances technologiques en forage Auteur : Stphane MENAND, MINES ParisTech  

E-print Network

roches dures et abrasives que dans des argiles (shales) ont ainsi vu le jour. Signalons également & Gaz Informations, 1806 (2010) 38-41" #12;Equipements de fond C'est un domaine dans lequel le rythme d

Paris-Sud XI, Université de

190

Coecien ts g en eralis es de s eries principales sph eriques relatifs aux espaces sym etriques d eploy es  

Microsoft Academic Search

Let G be a connected semisimple Lie group and H be the xed point group for a non trivial involution of G. Assume G=H is split. In this case we compute some generalized coecien ts of the spherical principal series of G in term of the B -matrix introduced by E. van den Ban. We use the wave front set

Mustapha Tinfou

1999-01-01

191

How to Keep Your Campus Safe from Infection  

ERIC Educational Resources Information Center

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;…

Brown, Scott

2005-01-01

192

YORK APARTMENTS INRES SERVICES NEW USER CHECKLIST  

E-print Network

User: Microsoft Update Website. Mac user: Apple Software Update RESNET ­ REGISTER YOUR CMPUTER WHEN on to ResNet. Anti-virus Software Ensure your computer has an anti-virus software installed. Ensure. Do not have an anti-virus software? We recommend using Symantec Endpoint Protection that is supported

193

UNDERGRADUATE RESIDENCE INRES SERVICES NEW USER CHECKLIST  

E-print Network

: Microsoft Update Website. Mac user: Apple Software Update RESNET ­ REGISTER YOUR CMPUTER WHEN YOU ARRIVENet. Anti-virus Software Ensure your computer has an anti-virus software installed. Ensure the latest anti an anti-virus software? We recommend using Symantec Endpoint Protection that is supported by UIT

194

76 FR 47564 - Procurement List; Additions  

Federal Register 2010, 2011, 2012, 2013, 2014

...5340-00-NIB-0079--Notebook Computer Combination Lock. NSN: 5340-00-NIB-0099...7045-00-NIB-0360--Anti-Virus, 2G. NSN: 7045-00-NIB-0361--Anti-Virus, 4G. NSN: 7045-00-NIB-0362--Anti-Virus, 8G. NSN:...

2011-08-05

195

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

E-print Network

) ­ available on campus or off campus Acceptable Windows OS: XP, Vista, Win7 and 8/8.1 1. Click START 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

196

UU NN II VV EE RR SS II DD AA DD EE FF EE DD EE RR AA LL DD OO RR II OO DD EE JJ AA NN EE II RR OO --UU FF RR JJ Sistema de Bibliotecas e Informao -SiBI  

E-print Network

. revista e atualizada Rio de Janeiro 2011 #12;REITOR DA UNIVERSIDADE FEDERAL DO RIO DE JANEIRO Aloisio Teixeira VICE-REITORA DA UNIVERSIDADE FEDERAL DO RIO DE JANEIRO Sylvia da Silveira de Mello Vargas. - Rio de Janeiro : Universidade Federal do Rio de Janeiro, Sistema de Bibliotecas e Informação, 2011. 92

Liu, I-Shih

197

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)

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.

Davila Montanez, Melissa

198

ACTUALIDAD INTERNACIONAL DEL TRATAMIENTO MAGNÉTICO PARA EL CONTROL DE INCRUSTACIONES. REVISIÓN  

Microsoft Academic Search

Luego de una breve descripción del proceso de endurecimiento del agua, se brinda una amplia información actualizada sobre la tecnología del tratamiento magnético del agua como método anti- incrustante en sistemas de intercambio de calor. Se destaca las principales hipótesis o mecanismos que pudieran responder a los efectos industriales observados, así como algunos de los resultados experimentales de los investigadores

Rigoberto del Toro Rodríguez; Arístides Berenguer Maurant

199

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

Cancer.gov

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

200

UNIVERSIT DI BRESCIA FACOLT DI INGEGNERIA  

E-print Network

'Informazione Laboratorio di Robotica Avanzata Advanced Robotics Laboratory Corso di Robotica (Prof. Riccardo Cassinis corso di "Robotica Industriale" e il suo scopo principale consiste nell'implementare un sistema di) presenti nel laboratorio di robotica dell'Università degli Studi di Brescia. Gli attuali sistemi di

Cassinis, Riccardo

201

VI096 - GUIA METODOLOGICA PARA ELABORACION DE ESTUDIOS DE IMPACTO AMBIENTAL PARA PROYECTOS DE AGUA POTABLE Y ALCANTARILLADO EN LA CIUDAD DE LIMA  

Microsoft Academic Search

RESUMEN El medio ambiente es sensible a una serie de impactos, tanto de origen natural o antropogénico y además pueden ser positivos o negativos. Hoy en día nadie duda que los principales impactos al ambiente y sus sistemas de vida provienen de las actividades humanas, convirtiéndose éstas en las mayores fuentes generadoras de impactos negativos. Sin embargo, estas actividades, entre

Marco A. Cerrón Palomino

202

Comunicacin entre ProcesosComunicacin entre Procesos por pase de mensajespor pase de mensajes  

E-print Network

librerías especiales Las primitivas principales son: send(destination, this_msg, msg_length) receive(source, a_msg, &how_long) #12;IntroducciónIntroducción Sistemas donde la comunicación por memoria enlaces pueden ser unidireccionales o bidireccionales send(tothisprocess, this_msg, msg_length) receive

Cardinale Villarreal, Yudith C.

203

POSGRADO EN DIRECCIN DE SISTEMAS DE INFORMACIN  

E-print Network

Añaños Carrasco Ingeniero Superior de Telecomunicaciones. IT Services Director en IESE Business School. Jordi Bosch i Garcia Freelance. Ingeniero de Telecomunicaciones por la UPC. Rufino Fernández Redondo

Politècnica de Catalunya, Universitat

204

Un análisis de los sistemas financieros latinoamericanos  

Microsoft Academic Search

Presenta a continuación es una elaboración especial para Economía y Sociedad del estudio ‘Acuerdos de integración de servicios financieros en América Latina: perfiles de negociación hacia el ALGA”, realizado por los autores para la Federación de Bancos Latinoamericanos FELABAN, en diciembre de 1995. Se publica debido a la importancia que ha adquirido el tema financiero y, en particular, a la

Torres Luis Alfonso; Humberto Mora; Martín Maurer; Magdalena Pardo

1997-01-01

205

SISTEMAS TENSÉGRICOS: NUEVAS ALTERNATIVAS PARA LA ROBÓTICA  

Microsoft Academic Search

in this article an introduction to the tensegrity systems is shown. It is also stated some definitions and the notation used for the elements of this kind of structures. The two morphologies more frequently used in the field of robotics and some applications used around the world are described: geodesic domes, tensegrity masts for space applications, tensegrity robot, sensors and

Rafael Esteban Vásquez; Julio César Correa

2005-01-01

206

SISTEMA MICROPROCESSADO PARA MEDIÇÃO DA FREQUÊNCIA CARDÍACA  

Microsoft Academic Search

Control of heart rate (HR) during exercise will permit to assess if physical training is being executed in a safe and efficient way. This paper presents an equipment to measure HR using an optical infrared sensor. The design and tests of the main development stages were detailed: analog circuits for signal acquisition and initial conditioning; signal processing using 8051 microcontroller;

L. K. Taho; F. M. Neri; E. F. Ferreyra Ramírez; N. Silva

207

Sistema de Balizamento de um Veículo Autônomo  

Microsoft Academic Search

The goal of this paper is to present the project and development of a mobile robot. It was develop an autonomous system to do the self parking correctly and in a safe mode. The vehicle, before start the parking procedures, calculates if the target spot is enough. For validation, the mechanic structure of the vehicle was done with LEGO pieces,

Hariel Petry Pitz; José F. Velozo

208

SISTEMA DE CONTROLE DE TEMPERATURA PARA ESTUFA  

Microsoft Academic Search

In this paper, are presented two stove temperature control systems: analog and digital. To produce efficient results on gateway current experiments realized on ZnO blocks, the process temperature must be stable. The systems were developed to satisfy the necessity to realize a refined stove temperature control. Although the controller was developed for a specific applica- tion, it can be used

MAX G. G. NERI; VICTOR G. P. ARAÚJO; EDSON G. COSTA; JOSÉ SÉRGIO R. NETO; KLEBER M. SILVA

209

DEPARTAMENTO DE SISTEMAS INFORMTICOS Y COMPUTACIN  

E-print Network

efectos se utiliza en televisi´on [3] [4], donde lo m´as importante es que funcione en tiempo real. La efecto. Dichos m´etodos se basan en la experiencia del usuario, y normalmente funcionan por la t

Abad, Francisco

210

IBEX: La Frontera de Nuestro Sistema Solar  

NSDL National Science Digital Library

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

2008-01-01

211

LA CALIDAD Y SUS SISTEMAS DE GESTIÓN  

Microsoft Academic Search

El desarrollo constante de la ciencia y la técnica imponen cada día mayores exigencias a la industria del software; exigencias medidas en términos de productividad y calidad. Esto lleva a las organizaciones a la necesidad de reducir sus costos sin afectar la calidad, además de satisfacer los requerimientos y plazos de entrega exigidos por los clientes, de tal manera que

Juan Carlos Mayo Alegre; Yuslaidys Avila Puig

2010-01-01

212

Standards-Based Instruction for All Learners: A Treasure Chest for Principal-Led Building Teams in Improving Results for Learners Most At-Risk  

ERIC Educational Resources Information Center

This document is designed to help administrators and faculties understand how the many complicated pieces of a high-performing school fit together. Trying to implement all the pieces at once may not be a solid plan for accomplishing a vision of quality. Taking steps to determine what is most critical for students is the logical starting place. The…

Searle, Margaret

2004-01-01

213

Experiencias de cuidadores principales de pacientes portadores de un desfibrilador durante el ingreso en el Hospital Virgen Macarena y tras el alta  

Microsoft Academic Search

ObjectiveTo determine the needs of the main caregivers of implantable cardioverter defibrillator (ICD) recipients during admission to the Coronary Unit of the Virgin Macarena Hospital and after discharge.

María Isabel Álvarez-Leiva; María Jesús Albar-Marín; María Eugenia Acosta-Mosquera; María Dolores Maestre-Guzmán; María Rosa Martín-García; Pilar Nieto-Gutiérrez

2007-01-01

214

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

ERIC Educational Resources Information Center

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

McWilliams, Ellen K.

2011-01-01

215

liquide suivant les parois mmes de ceux-ci, tandis que sous l'action des forces hy drostatiques l'coulement du liquide a lieu principale-  

E-print Network

'influence du courant électrique sur le mouve- ment de solutions de tannin à travers les peaux telles qu'elles sont traitées dans les tanneries. Il est arrivé aux conclusions sui- vantes : ~ Des solutions de tannin tannin, il faut renverser le courant à de courts intervalles, par exemple toutes les minutes. ' H. BAGARD

Paris-Sud XI, Université de

216

ANÁLISIS ESTADÍSTICO DE DATOS DE CALIDAD DE AGUA DE LOS POZOS EN LA REGIÓN Y EN LAS PRINCIPALES CIUDADES DEL ACUÍFERO DE IRAPUATO-VALLE, GUANAJUATO, MÉXICO  

Microsoft Academic Search

Resumen - En base a la necesidad de conocer si un evento extraordinario de lluvias en el acuífero de Irapuato Valle afectó la calidad del agua subterránea extraída, se realizó un análisis estadístico a través de pruebas no paramétricas de datos ordenados por rango y de nivel nominal de los parámetros físicos, químicos y bacteriológicos que determinan la calidad del

José de Jesús; Mora Rodríguez; Carlos Gutiérrez Ojeda; Luis González Hita

217

Enterprise Information Security Management Framework [EISMF  

E-print Network

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, ...

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

2011-01-01

218

Planificacion y Bibliografia Sistemas paralelos Sistemas multicore Posibles trabajos Nociones basicas de computacion paralela  

E-print Network

:00-18:00: Nociones generales y programaci´on en multicore. Domingo Gim´enez 18:00-19:00: Programaci´on en multicore con OpenMP. Javier Cuenca 19:00-21:00: Pr´acticas de programaci´on con OpenMP (opcional). Javier´on de la Fundaci´on Parque Cient´ifico de Murcia 18:00-19:00: Programaci´on en clusters con MPI. Javier

Giménez, Domingo

219

Servicio de Informtica NOTICIAS Y EVENTOS  

E-print Network

Endpoint Antivirus" y "Panda Antivirus Pro 2014" (Publicada 04/03/2014) La anterior licencia con Kaspersky campaña de actualización en la red wifi de la Universidad. Servicio de Informática #12;El SI participa en las Jornadas Técnicas de RedIRIS 2013 (Publicada 25/10/2013) El Servicio de Informática participa en

Escolano, Francisco

220

Updated April 2014 UTHSC College of Nursing  

E-print Network

by the University. For more information on antivirus software, go to http://antivirus.uthsc.edu. Apple Reader or Apple Preview These software read PDF files and often comes pre-installed on many machinesUpdated April 2014 UTHSC College of Nursing Computer and Software Requirements Each incoming

Cui, Yan

221

Testing and evaluating virus detectors for handheld devices  

Microsoft Academic Search

The widespread use of personal digital assistants and smartphones gives securing these devices a high priority. Yet little attention has been placed on protecting handheld devices against viruses. Currently available antivirus software for handhelds is few in number. At this stage, the opportunity exists for the evaluation and improvement of current solutions. By pinpointing weaknesses in the current antivirus software,

Jose Andre Morales; Peter J. Clarke; Yi Deng; B. M. Golam Kibria

2006-01-01

222

An Attack Vector for Deception Through Persuasion Used by Hackers and Crakers  

Microsoft Academic Search

We always uses the Anti-virus or Anti- Spyware software to secure our data but still most of our computers are infected by the Malware because we thought computer security as just technical field and anti-virus or firewall only can prevent us. Despite all the technological advancement in security, there is still one attack vector that leaves our network and computer

Mosin I. Hasan; Nilesh B. Prajapati

2009-01-01

223

Metamorphic Detection via Emulation  

Microsoft Academic Search

In parallel with improvements in anti-virus technologies, computer virus writers have developed innovative viruses that are challenging to detect. Metamorphic viruses change their appearance from one generation to another by using various code obfuscation techniques. Today, signature detection is the most common method used in anti-virus products, but well designed metamorphic viruses cannot be detected using signatures. Hence, there is

Sushant Priyadarshi

2011-01-01

224

On the Feasibility of Online Malware Detection with Performance Counters  

E-print Network

, adware and other classes of malware. De- spite the existence of anti-virus software, malware threats persist and are growing as there exist a myriad of ways to subvert anti-virus (AV) software. In fact the potential to advance state-of-the-art online malware detection. Categories and Subject Descriptors C.0

Yang, Junfeng

225

Estrutura genética e sistema de acasalamento de Piper hispidinervum  

Microsoft Academic Search

Long pepper (Piper hispidinervum C. DC.) is a small tree with high commercial value found in areas under anthropic influence in the State of Acre, Brazil. The genetic structure and mating system of P. hispidinervum were evaluated using RAPD markers. The genetic diversity within and between natural populations were evaluated in 13 populations in the Basin Acre River - Western

Lúcia Helena de Oliveira Wadt; Paulo Yoshio Kageyama

2004-01-01

226

El origen del sistema de relaciones laborales en el Uruguay  

Microsoft Academic Search

The purpose of this paper is the identification of issues that help to explain the origin of a Labor Relations Systems in this country. It includes the analysis of the different components and their links with the social, economic and political context.

Jorge Notaro; Mariángeles Chevalier; Claudio Fernández Caetano; Virginia Motta; Magdalena Viera

2011-01-01

227

DISEÑO DE UN SISTEMA DE GESTIÓN DE SEGURIDAD INDUSTRIAL  

Microsoft Academic Search

The present work has like objective designing a System of Management of Industrial Security, the purpose of the proposed System is to assure integrity the resources of the company. The first passage for the design of this system was to diagnose the present situation of the plant, for it is used the effective labor legislation in the matter of industrial

José Castro Rites; Mario Moya Reyes

228

Sistema de Labranza y Productividad de los Suelos  

Microsoft Academic Search

In this Chapter we discuss the effect of tillage on the physical, chemical and biological properties of the soil.The intensification of agriculture using traditional crop tillage practices involving the inversion of the upper soil layer, decreases de soil organic matter content. No-tillage practices, leaving the crop residues on top of the soil, increase the soil organic matter content positively affecting

E. ACEVEDO; Y E. MARTÍNEZ

229

INTRODUCCION AL MODELADO FISICO 1 Modelado de Sistemas Dinamicos  

E-print Network

ingenier a en diversos campos: Mecanica. Electricidad. Hidraulica. Termolog a. Etc. El primer paso consiste ' & $ % Algunos Tipos de Interfases Dominio Esfuerzo e(t) Flujo f(t) MECANICA (ROT) torque (t) rotacion !(t) MECANICA (LIN) fuerza F(t) velocidad V(t) ELECTRICA voltaje e(t) corriente i(t) HIDRAULICA presion P

Batlle, Carles

230

UNIVERSIDAD POLITECNICA DE VALENCIA Departamento de Sistemas Informticos y Computacin  

E-print Network

___________________________ EL LENGUAJE CLP(H/E): UNA APROXIMACION BASADA EN RESTRICCIONES A LA INTEGRACION DE LA PROGRAMACION LA PROGRAMACION LOGICA Y ECUACIONAL Memoria presentada por María Alpuente Frasnedo para la obtención PROGRAMACION LOGICA Y ECUACIONAL Tesis Doctoral en Informática presentada por María Alpuente Frasnedo

Alpuente, María

231

CÉLULA COMBUSTÍVEL E BATERIA INTEGRADOS A SISTEMA FOTOVOLTAICO  

Microsoft Academic Search

New technologies are coming to improve the use of power for the consumers in a bigger time from photovoltaic source. This paper works arrangement with two types of technology of energy storage: Battery and electrolyzer-fuel cell set and three types of photovoltaic use: stand-alone, hybrid and connected to the grid.

Paulo C. Carvalho; Lutero C. de Lima

232

Programacin de Agentes y Sistemas Multi-Agentes  

E-print Network

. Compare la propuesta de Yoav Shoham (1993) expuesta en su artículo en Artificial Intelligence 60-Hernández Departamento de Inteligencia Artificial Universidad Veracruzana Facultad de Física e Inteligencia Artificial:51­92 "Agent Oriented Programming" con las con- ceptos básicos introducidos en clase. Señale claramente

Guerra Hernández, Alejandro

233

EL SISTEMA FINANCIERO DE ANGOLA Y ESTRATEGIAS DE FUTURO  

Microsoft Academic Search

The basic objectives of this article are presenting the current financial system of Angola, taking into account the points of view Institutional and Monetary Policy; an analysis of internal and external competitive environment of the financial system by applying the Angolan DAFO or SWOT Matrix, with the aim of formulate concrete strategies, in a chart or a summary table, assessing

Casanovas Ramón; Jesus Fortes

234

Fisica de Sistemas Fuera del Equilibrio Gas de Knudsen  

E-print Network

´eculas, y n la densidad molecular. El flujo de mol´eculas a trav´es de la abertura depender´a de la cantidad estado: PV = NkBT = ni = Ni V = Pi kBTi (10) Aqu´i N es la cantidad de mol´eculas, y n la densidad

Ritort, Felix

235

Sinais e Sistemas Exame final 2/6/2012  

E-print Network

- - 1/ . Respostas aos problemas 1 a 5 e 8 a 12: Prob. 1 a b c d e f g Prob. 8 a b c d e f g Prob. 2 a b c d e Prob. 9 a b c d e f g Prob. 3 a b c d e f Prob. 10 a b c d e f g Prob. 4 a b c d e Prob. 11 a b c d e f g Prob. 5 a b c d e f g Prob. 12 a b c d e Problema 1 (0.7 valores) Indique qual o valor

Almeida, Luis B.

236

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.

237

Sistema pioner d'avaluaci de la docncia en lnia  

E-print Network

preveu enllestir el setembre del 2005, serà una de les peces del Parc Barcelona Media, el gran complex'estació de França. El nou equipament universitari serà una de les peces centrals del Parc Barcelona Media, un empresarial comportarà beneficis recíprocs, un millor aprofitament dels recursos i el desenvolupament de

Geffner, Hector

238

www.biblio.polimi.it Il Sistema bibliotecario  

E-print Network

da Vinci (1452 - 1519) progetto grafico D. Ferretti #12;C'è differenza tra diritto d'autore e del 1941 e successive modifiche. ** in copertina particolare tratto dal Codice Atlantico di Leonardo da parte dell'autore o dell'editore/eredi (ovvero del titolare dei diritti economici). Per i giornali

239

The Mexican Sistema de Alerta Sismica (SAS) Experience  

NASA Astrophysics Data System (ADS)

The Mexico City's SAS is an Early Warning System developed in accordance with recommendations of foreign and national seismology experts, after the disaster generated in 1985 by the M8.1 Michoacan earthquake. The SAS aim is to help mitigate future seismic disasters in Mexico City (MC), mainly if the big forecast "Guerrero Earthquake" hits. In 1991 the SAS started its service in an experimental basis for evaluating its performance both with a group of basic education students in public schools, and with the emergency stop function for the Mexico City Metropolitan Subway System (METRO of MC); after this The Federal District Government (FDG) opened the SAS as a public service in August, 1993, shortly after the SAS warned, with more than 60 seconds of anticipation, the incoming effect of May 13, 1993, M5.8, and M6 double earthquake originated more than 300 Km from MC between Guerrero and Oaxaca, on the coast. That year, an initial technical flaw generated one false alert signal; the cause was readily corrected. The SAS has 12 seismic sensor stations covering a stripe close to 400 X 100 Km on the Guerrero's coast, between Papanoa and Punta Maldonado, that send information through a dedicated radio relay system to the SAS Central Control in MC., using the valuable support of some TELMEX field installations. Until August, 2003, the SAS sensor system has detected more than 1550 earthquakes in the 2.55 magnitude events, which are the ones felt in MC. The SAS has generated 57 warning signals with an average of 60 sec in advance to earthquake effects: 46 of restricted use for M<6, and 11 of public use for M>6 events. Public warnings have the automatic broadcast support of many commercial radio AM/FM and TV stations in Mexico City and Toluca valleys. The FDG controls the SAS signal service that includes the more frequent events (from M>5 up), asking the user to develop procedures and practice useful actions to mitigate seismic disasters. Each validated SAS seismic warning automatically generates and sends the event information by fax and e-mail to the DFG and Civil Protection Authorities, users and news media; it also sends information about the SAS operating conditions to service technicians, via radio, and phone.

Espinosa-Aranda, J.; Rodriguez, F.

2003-12-01

240

Integracin de ERNCs a los sistemas elctricos chilenos  

E-print Network

Incorporación de ERNC en la matriz energética de Chile Cámara de Diputados de Chile y Ministerio de Energía Santiago, 6 Mayo 2013 Departamento de Ingeniería Eléctrica Pontificia Universidad Católica de Chile #12 · A una visión integral técnica-ambiental-social #12;Las renovables reducen la dependencia externa Fuente

Catholic University of Chile (Universidad Católica de Chile)

241

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...

242

Ozka grla sistema odprtega dostopa: glasovi iz sveta  

E-print Network

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, ...

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, Victor; Smolí k, Filip; Snoj, Marko; Szilá gyi, Imre; Torres, Orlando; Tykarski, Piotr

2014-12-01

243

Diseo de sistemas electrnicos basados en plataformas FPGA y ASIC.  

E-print Network

partición HW/SW óptima. Adicionalmente dichas me- todologías consiguen reducir los tiempos de verificación presentamos las bases para esta exploración, metodo- logías y test. Estos puntos se introducen en 6 partes incluir para mejorar el tiempo de prototipado. Una plataforma debe estar documentada para que pueda usarse

Autònoma de Barcelona, Universitat

244

Master en Sistemas Telematicos e Informaticos Curso 2007-2008  

E-print Network

se siguen obteniendo t´ecnicas para reducir la complejidad de ejecuci´on y tiempo para darles soluci poco tiempo. No obstante, durante la historia de estos problemas, se han aplicado t´ecnicas heur obtener resultados ´optimos en muy poco tiempo. Tambi´en podr´a contemplar los pseudo-c´odigos utilizados

Pantrigo Fernández, Juan José

245

UNIVERSIDAD DE VALLADOLID DEPARTAMENTODE INGENIER IA DE SISTEMAS Y AUTOM  

E-print Network

elegida a priori, asâ??� como los parâ??ametros de la incertidumbre. #15; El estudio de los algoritmos genâ??eticos â? NO DE CONTROLADORES ROBUSTOS MULTIOBJETIVO POR MEDIO DE ALGORITMOS GEN â?? ETICOS TESIS DOCTORAL ALBERTO MEDIO DE ALGORITMOS GEN â?? ETICOS Autor: ALBERTO HERREROS L â?? OPEZ Ingeniero Industrial Directores: Dr. D

Coello, Carlos A. Coello

246

Identificación del sistema de Rössler: enfoque algebraico y algoritmos genéticos  

Microsoft Academic Search

Not Available Bibtex entry for this abstract Preferred format for this abstract (see Preferences) Find Similar Abstracts: Use: Authors Title Return: Query Results Return items starting with number Query Form Database: Astronomy Physics arXiv e-prints

C. Aguilar Ibáñez; J. Sánchez H; M. S. Suárez C; F. Flores A

2005-01-01

247

CURSO DE PS-GRADUAO EM CINCIA DO SISTEMA TERRESTRE  

E-print Network

Morisson Valeriano, Ph.D., Univ. Of Califórnia, 1996 Diogenes Salas Alves, Doutor, Univ. de Paris, 1983 Francisco de Assis Costa, Ph.D., Freie Universität Berlin , 1988 Franz Josef Bruseke, Ph.D., Westfälische

248

Efectos relativistas en los sistemas Galileo, GPS y GLONASS  

E-print Network

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.

J. -F. Pascual-Sánchez

2004-05-18

249

Anlise Formal de SistemasUma abordagem orientada a linguagem  

E-print Network

líder: topologia (grafo) com três nós msg(2) 0 2 1 msg(0) msg(1) msg(2) 0 2 1 msg(0) msg(1) msg(2) msg(2) msg(2) 0 2 1 msg(0) msg(1) msg(2) Início Encaminhamento das mensagens Identificação do líder #12;Por

Ayala-Rincón, Mauricio

250

WORKSHOP DIGITAL.CSIC 2014 NUEVOS SISTEMAS PARA LA EVALUACIN  

E-print Network

abierta e impacto científico" se pasó la palabra a la comunidad institucional del CSIC mediante la repositorios institucionales dentro de prácticas emergentes en la evaluación y análisis de la ciencia

251

UmUm SistemaSistema dede Animao BaseadoAnimao Baseado emem Movimento CapturadoMovimento Capturado  

E-print Network

Movies and television ­ Terminator 2, Titanic, Star Wars and others. q Medicine ­ study of motion deaf the main MoCap abstractions and entities. q Used paradigm: digital video editing ­ motions are independent Standard GUI facilities: XForms q Real-time animation preview q Tested on SGI, RS6000 and Linux

252

Le cancer du sein, qui est caractris par une prolifration accrue et anarchique des cellules mammai-res, constitue l'une des principales causes de mortalit par cancer chez la femme. Lorsque les cellules  

E-print Network

Le cancer du sein, qui est caractérisé par une prolifération accrue et anarchique des cellules cellules malignes contiennent des récepteurs aux oestrogènes, ces hormones participent à la progression de prolifé- ration cellulaire par l'intermédiaire de ces récepteurs, présents dans le noyau des cellules

Halazonetis, Thanos

253

Historia del Banco de la República en Cali, y el establecimiento de los principales pilares bancarios en la ciudad a finales del siglo XIX e inicios del siglo XX  

Microsoft Academic Search

Dada la escasez de literatura sobre historia de las primeras entidades financieras que se establecieron en Cali a finales del siglo XIX e inicios del XX, este trabajo tuvo como fin, revelar, además de la historia, el papel que desempeñaron dichas instituciones como medio crediticio para financiar obras transcendentales para el desarrollo comercial, industrial y social de Cali, como lo

Jaime Andrés Collazos Rodríguez; Arley Barandica Villegas

2006-01-01

254

MAXIMIZE YOUR CAMPUS ELECTRONIC  

E-print Network

accessing your laptop, smartphone or tablet is to require a password. If you lose it, no one else can use it to your computer, smartphone and tablet when they are available. Use antivirus software. Make sure your

255

NUIT Recommended Practices for Digital Devices Use the checklist below to help you maintain a problem-free computer, tablet, smartphone, or other device.  

E-print Network

a problem-free computer, tablet, smartphone, or other device. Whatever your role, Northwestern is our home, or tablets, including: Operating system Security software (antivirus, anti-spyware, firewall, etc

Shahriar, Selim

256

NUIT Recommended Practices for Digital Devices Use the checklist below to help you maintain a problem-free computer, tablet, smartphone, or other device.  

E-print Network

a problem-free computer, tablet, smartphone, or other device. Whatever your role, Northwestern is our home on computers, smartphones, or tablets, including: Operating system Security software (antivirus, anti

Shahriar, Selim

257

October 29, 2012 Boguslaw P. Nocek | Phone: 630-935-0793 | Email: bnocek@anl.gov 1 of 8  

E-print Network

meningitidis M1 alanine aminopeptidase by fluorogenic substrate profiling, inhibitory studies and molecular, A.M., Yakunin, A.F. A dual function of the CRISPR-Cas system in bacterial antivirus immunity and DNA

Kemner, Ken

258

Eradicating Computer Viruses on Networks  

E-print Network

Spread of computer viruses can be modeled as the SIS (susceptible-infected-susceptible) epidemic propagation. We show that in order to ensure the random immunization or the targeted immunization effectively prevent computer viruses propagation on homogeneous networks, we should install antivirus programs in every computer node and frequently update those programs. This may produce large work and cost to install and update antivirus programs. Then we propose a new policy called "network monitors" to tackle this problem. In this policy, we only install and update antivirus programs for small number of computer nodes, namely the "network monitors". Further, the "network monitors" can monitor their neighboring nodes' behavior. This mechanism incur relative small cost to install and update antivirus programs.We also indicate that the policy of the "network monitors" is efficient to protect the network's safety. Numerical simulations confirm our analysis.

Huang, Jinyu

2012-01-01

259

Approved and Issued By: Issue No: 1 Revision No: Date of Issue: 11.1.2010 Page No: 1  

E-print Network

and Internet 2. High Performance Computing Environment 3. Personal Computer and peripheral Hardware service 4. Data Centre to house High Performance Computers and Network Servers 5. Antivirus and Spam filter 6

Sivalingam, Krishna M.

260

Designing security into software  

E-print Network

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. ...

Zhang, Chang Tony

2006-01-01

261

We'd sound like a Smurf if we talked on Venus, researchers  

E-print Network

ORANGE OFFER WEIGHT WATCHERS #12;RECENTLY PUBLISHED Cleverer than Carol Vorderman at just 4 years old wireless router, McAfee Antivirus and £20 in HMV vouchers Want to lose weight? Sign up online today

Sóbester, András

262

Virus Information Database  

NSDL National Science Digital Library

Symantec Corporation's AntiVirus Research Center has recently released a virus information database that includes over 10,000 computer viruses. The searchable and browseable database can include information about aliases for each virus, infection length, area of infection, likelihood of infection, region reported, characteristics, target platform and target date, in addition to a brief description of how the virus works. The site also provides a basic tutorial on viruses. Symantec, under the Norton name, produces several anti-virus products.

263

Directives concerning student use of IT resources 10 September 2007  

E-print Network

) that are connected to the EPFL network (on campus or remotely) must be protected against viruses by up-to-date anti-virus software (anti-virus software is supplied on request by the DIT http://winsec.epfl.ch); the student must Civil Code (Articles 28 to 28f http://www.admin.ch/ch/f/rs/210/index1.html). 3 Penal Code · Users must

Picasso, Marco

264

Combating computer viruses: IBM's new computer immune system  

Microsoft Academic Search

At IBM's Thomas J. Watson Research Center (in Yorktown Heights, New York), the Anti-Virus Science and Technology group is doing groundbreaking work in automatic virus detection and eradication. IBM incorporated some of the group's work in virus detection using machine learning techniques into its AntiVirus product. The group has also developed a prototype computer immune system. Modeled after the human\\/vertebrate

Sara Hedberg

1996-01-01

265

El Sistema Cooperativo de Extensin: Ms relevante hoy que nunca El Sistema Cooperativo de Extensin es una organizacin nica en la educacin  

E-print Network

alta calidad de programas educativos informales. Tradicionalmente concebido como un programa rural, el, y para mejorar la productividad a través de recursos de manejo, control de pestes en la cosecha, control de enfermedades y parásitos, manejo de desechos de césped, mercados agrícolas y desarrollando

266

Struttura interna del Sistema OperativoStruttura interna del Sistema Operativo CAP. 7. LaCAP. 7. La gestionegestione delladella memoriamemoria virtualevirtuale  

E-print Network

indirizzamento #12;2 Pag. 2 Codifica EsadecimaleCodifica Esadecimale HEX Bin HEX Bin HEX Bin HEX Bin 0 0000 4 6 0110 A 1010 E 1110 3 0011 7 0111 B 1011 F 1111 -- 33 -- 32 bit di indirizzo corrispondono a 232

Silvano, Cristina

267

Reconocimiento y seguimiento de objetos móviles en un sistema de fútbol robótico  

Microsoft Academic Search

The element of vision within a robotic soccer system is the one in charge to say what it is happening in the playground, for which fulfills tasks like: recognition and classification of robots, differentiating between robots local and the opponents, additionally indicate the trajectory of the ball. In order to obtain these tasks it must overcome obstacles related to illumination,

Jorge Chical; Rodrigo Jacho; Luis Atiencia; Boris Vintimilla

268

Estrategias de Sistema de Agentes (Simple y Múltiple): Caso de Estudio Fútbol de Robots  

Microsoft Academic Search

This Master Thesis describes the simulation and models concerned with Multi -agent System in a Robot Soccer's environment. This work introduces the concepts of multi-agent system and robot soccer, shows a description of some of the leading organizations dedicated to this research area in the world, and presents an introduction to the simulation software. Also, it shows the Development of

Wilson Sotomonte; Jonatan Gómez

269

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

E-print Network

redes de grande escala geogr´afica. Estas redes destinguem-se das redes locais principalmente pelas suas desempenho aceit´avel sobre este tipo de redes. A grande maioria das redes de grande-escala hoje existentes s~ao constitu´idas por aglomerados de redes locais interligados por redes ponto-a-ponto. Para oferecer comunicac

Rodrigues, Luís E.T.

270

SISTEMAS INTRAUTERINOS LIBERADORES DE HORMONAS EN EL TRATAMIENTO DE LA MENORRAGIA  

Microsoft Academic Search

Levonogestrel intrauterine system is indicated for treatment of menorrhagia.The menhorragia is defined as greater than or equal to 80 ml of blood loss per menstrual cycle. Objectives. To evaluate the effectiveness and security of levonogestrel intrauterine system and to compare with others medical or surgical treatments. Material and methods. We used bibliography of gynaecology and randomized controlled clinical trials about

María Josefa Toledo; Elena Elizabet Gomez

271

Distribuição de raízes de mamoeiro sob diferentes sistemas de irrigação localizada em latossolo de tabuleiros costeiros  

Microsoft Academic Search

The root system is responsible for water uptake and should be considered in irrigation water requirement calculations. The work had as objective to define papaya root distribution under sprayer and drip irrigation in a Tableland Coast Soil of Recôncavo Baiano. Two trenches were dug at different positions related to plants irrigated by sprayer and surface and buried drip irrigation. The

Eugênio Ferreira Coelho; Marcelo Rocha Santos; Mauricio Antonio Coelho Filho

2005-01-01

272

IMPLEMENTAZIONE E VALUTAZIONE DI UNA FACCIA PARLANTE ESPRESSIVA IN UN SISTEMA DI E-TUTORING  

Microsoft Academic Search

The role of tutoring systems and the user modelling interface are central issues on in e-learning community studies (Bevacqua et al., in press ; Berry et al., 2005; De Carolis et al., 2005). In this paper we propose a system based on a text-to-speech 3D synthesised animated face incorporating cognitive, linguistic and phonetics features (and the consequent multimodal integration of

EMANUELA MAGNO CALDOGNETTO; FEDERICA CAVICCHIO; PIERO COSI

2005-01-01

273

Asignación de trasplantes renales en México. Estimación de un sistema de puntaje  

Microsoft Academic Search

Through an estimation of an implicit point system, we try to infer some of the principles used by a medical team in the allocation of kidneys for transplantation in Mexico. Results indicate that criteria linked to principles of medical efficiency and of position in the waiting list fundamentally determine the final allocation of organs.\\/\\/ Por medio de la estimación de

Gabriela Calderón; Alexander Elbittar

2010-01-01

274

ANÁLISE COMPARATIVA DE SISTEMAS DE PRODUÇÃO DE GADO DE CORTE: PASTO ROTACIONADO X CONFINAMENTO  

Microsoft Academic Search

O Brasil tem se destacado no contexto mundial como um dos maiores produtores e exportadores de carne bovina. Essa posição foi cons eguida graças à introdução de uma série de inovações tecnológicas e à tomada de consc iência dos criadores de que é necessário acompanhar o desenvolvimento tecnológico e profissionalizar-se para obter competitividade no mercado atual. Nesse sentido, o criador

JAILSON DE OLIVEIRA ARIEIRA; CLÁUDIA REGINA DIAS-ARIEIRA

275

DISEÑO E IMPLANTACIÓN DEL SISTEMA ACTIVITY BASED COSTING EN EL SECTOR HOTELERO: ESTUDIO DE UN CASO  

Microsoft Academic Search

Little existing Literature about the utility and the applications of the activity based costing or ABC in the tourism, especially in the hotel industry, has supposed an important motivation for the accomplishment of this work. For that reason we considered its real application using the case method that we describe in all its phases of implantation in this paper. The

M. Victoria Sánchez Rebull

276

Análisis clínico de un nuevo sistema de anestesia: Temel Supra ® (II)  

Microsoft Academic Search

® cuyo fin es aportar nuevas ventajas a la ventilación del paciente anestesiado. PACIENTES Y MÉTODOS: Se realiza una evaluación clí- nica en 100 pacientes adultos anestesiados, y ventilados con este equipo. RESULTADOS: Los pacientes fueron oxigenados y venti- lados correctamente sin registrarse incidencia alguna. Se pudo elegir independientemente circuito abierto, bajos flujos y circuito cerrado. La monitorización ventilatoria es

J. Roca; A. Pérez; J. M. Mendieta; J. Mateu; P. Asensi; J. Burruezo; M. J. Rivera

277

Nutrición mineral en sistemas ganaderos de las sabanas centrales de Venezuela  

Microsoft Academic Search

To evaluate mineral nutrition in cattle production systems in the central plains of Venezuela, in well drained (WDS) and poorly drained (PDS) savannas as well as intermediate savannas (IS), nine cattle production units were selected in the municipal district of Pao de San Juan Bautista of Cojedes state, Venezuela, corresponding to a dry tropical forest. Soil, forage, animal blood serum,

Luis Depablos; Susmira Godoy; Claudio F. Chicco; Jorge Ordoñez

2009-01-01

278

SISTEMA DE INTELIGENCIA TERRITORIAL FRENTE A EMERGENCIAS Y DESASTRES DE CRUZ ROJA CHILENA  

Microsoft Academic Search

The Human Security is the set of actions coordinated with authorities, scientific society and community in the space, destined to the protection of people, goods and ambient, before, during and after threats of natural origin and\\/or human. Direction of Aids of the Chilean Red Cross, in coordination with Pan-American Unit of Disasters arranges integrated as of year 2006 of a

Cristian Andrés; Ramírez Sepúlveda

279

Construção e validação de um sistema hipermídia para o ensino de Física Moderna  

Microsoft Academic Search

We relate the characteristics and the potentiality of a hypermedia system elaborated in order to support the teaching and learning of Modern Physics topics at High School level. The research involved the production and validation of a software based on ausubelian principles, studies regarding the insertion of Modern Physics in High School, debates related to the Science- Technology-Society-Environment movement, considerations

Daniel Iria Machado; Roberto Nardi

280

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

E-print Network

/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

Schenato, Luca

281

Revista Ingenieria de Sistemas Volumen XXIII, Septiembre 2009 Optimizacion de la Recoleccion de  

E-print Network

Buenos Aires (Argentina), utilizando t´ecnicas de programaci´on matem´atica. Se describe el proceso de depuraci´on de los datos disponibles y los pasos realizados para apli- car herramientas de programaci´on camiones. Palabras Clave: Programaci´on Entera, Recolecci´on de Residuos, Ruteo de Veh

Bonomo, Flavia

282

Plataformas de soporte computacional: Sistemas de memoria Diego R. Llanos, Belen Palop  

E-print Network

. Los datos escritos en ella por un procesador son visibles al resto. Utilizan un modelo de programaci´on (cach´es). En este tema veremos el modelo de programaci´on OpenMP, basado en el uso de variables compar- tidas. Modelo de programaci´on de variables compartidas Caracterizado porque todos los procesadores

Llanos, Diego R.

283

Integración de sistemas de control de calidad y gestión en unidades de hospitalización domiciliaria  

Microsoft Academic Search

ObjectivesTo determine the health management indicators established during the implantation a new domiciliary care unit using 2 defined management tools: the balanced scorecard (BSC) and the patient management process following the norms defined by ISO 9002.

Sara Mazo; Carlos Emparán

2006-01-01

284

Curva de luz y análisis del sistema CPD59 2603 (=Tr16-104)  

Microsoft Academic Search

CPD -59 2603 is a multiple system which belongs to the open cluster Trumpler 16. This system is composed by a short period eclipsing binary (O7V+O9.5V) and at least a third star (B0.2IV). We have made CCD observations using the HSH Telescope at CASLEO in order to obtain photometric data from this system. Some additional CCD images were obtained with

E. Fernández Lajús; M. Schwartz; A. Torres; C. Fariña; V. Niemela

2004-01-01

285

Curva de luz y análisis del sistema CPD-59 2603 (=Tr16-104)  

NASA Astrophysics Data System (ADS)

CPD -59 2603 is a multiple system which belongs to the open cluster Trumpler 16. This system is composed by a short period eclipsing binary (O7V+O9.5V) and at least a third star (B0.2IV). We have made CCD observations using the HSH Telescope at CASLEO in order to obtain photometric data from this system. Some additional CCD images were obtained with the the Reflector Telescope at La Plata Observatory. In this work we present the resulting light curve of CPD -59 2603 in the Johnson-Cousins's V band. We have performed a preliminary analysis of the system from our photometry and the published spectroscopic data by means of the Wilson & Devinney (1971) code.

Fernández Lajús, E.; Schwartz, M.; Torres, A.; Fariña, C.; Salerno, N., Llinares, C.; Niemela, V.

286

Cinemática de sistemas interactuantes de tipo M51: Relación de Tully-Fisher  

NASA Astrophysics Data System (ADS)

We present heliocentric radial velocity distributions of six M51-type galaxies. Additionally we present Tully-Fisher relations for M51-type systems from our kinematic catalog (Gunthardt et al. 2006) with the velocities determined from H-alpha and using B-band absolute magnitudes; we also considered systems with maximum velocities from HI lambda-21 cm line. In both cases, we found shallower relations compared with nearby spiral galaxies, in agreement with the results found by Reshetnikov & Klimanov (2003). FULL TEXT IN SPANISH

Gúnthardt, G.; Díaz, R. J.

287

SISTEMA DE PARTIDOS EN LA REGIN ANDINA (1980-1995) Fernando TUESTA SOLDEVILLA  

E-print Network

industrialización, iniciado después de la segunda guerra mundial, permitió que la mayor parte de su población se organice socialmente en las ciudades. Hay, sin embargo, diferencias. El Perú, es un país más urbano, el 70

Boyer, Edmond

288

SAGISc: Sistema Colaborativo para Recolha de Dados Paula Andr Pedro Antunes  

E-print Network

, etc. A segunda etapa processa-se no campo, onde se efectua o levantamento da geologia da área. Este deslocações ao local de estudo. � de salientar que actualmente este processo pode demorar alguns anos. Este verificar as situações de dúvida ou para dar uma segunda opinião sobre determinado elemento geológico. O

Antunes, Pedro

289

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

ERIC Educational Resources Information Center

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…

Van Heukelem, Tom; Mercado, Maria de Jesus

290

Creación de un Sistema de bases de datos federadas a través de Tecnología Java  

Microsoft Academic Search

Resumen: Este artículo p resenta el Proyecto Europeo InTouriSME (building an Internet- based Tourism Constituency for Small and Medium Enterprises in the Less Favoured Regions of Europe) como el punto d e partida pa ra la creación d e un S istema Europeo d e Bases de Datos Federadas para el área d e Turismo. El proyecto InTouriSME permitirá d

Francisca Campins Verger; Pedro Fiol Noguera

291

Un modelo de arquitectura para el aprendizaje y compartición de conocimiento entre sistemas inteligentes autónomos distribuidos  

Microsoft Academic Search

It is presented a model of architectures for distributed independent intelligent systems with sharing of knowledge. This one is focused on raising a model so that intelligent independent systems interoperate in distributed surroundings focusing their use in problems of scenes of interaction of virtual, hybrid and real nature. The architecture is provided with a preliminary model of learning and a

Jorge Salvador Ierache; Marcelo R. Naiouf; Ramón García-martínez; Armando De Giusti

2008-01-01

292

Sistema de dialogo multimodal basado en modelos estadisticos Multimodal dialog system based on statistical models  

E-print Network

utilizando la arquitectura desarrollada en el proyecto SD- TEAM. Esta arquitectura permite la comu- nicaci-5948 © 2011 Sociedad Española Para el Procesamiento del Lenguaje Natural #12;Figura 1: Arquitectura del

Escolano, Francisco

293

Procesos de precipitación mineral bioinducidos en sistemas kársticos subterráneos: breve revisión y nuevas tendencias  

Microsoft Academic Search

Microorganisms, particularly bacteria, inhabit all possible environments in the biosphere including subterranean ones. They play an important role in geological processes such as mineral precipitation and dissolution, and significantly influence biogeochemical cycles. At present, relatively few studies have focused on the active role of microorganisms, especially bacteria, in the formation of speleothems. Thus, the involvement of microbial activity in the

S. Sánchez-Moral; J. M. González; J. C. Cañaveras; S. Cuezva; J. Lario; C. Cardell; J. Elez; L. Luque; C. Saiz-Jiménez

294

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

NSDL National Science Digital Library

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

1997-01-01

295

BIBLIOTECA VIRTUAL CON MATLAB PARA LA SIMULACIÓN DE SISTEMAS MULTIVARIABLES INDUSTRIALES  

Microsoft Academic Search

In this paper the authors present and discuss results obtained on the conformation of virtual library attained with MATLAB for the design and simulation of multivariable industrial systems. Subsystems in form of blocks are conformed from known models of industrial processes, installations and devices. This is done using SIMULINK, which allows the design and simulation of any system of interest.

Daniel Guzmán del Río; Luis Delfín; Rojas Purón; Cleto de Souza; Cavalcante Leal

296

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

NASA Astrophysics Data System (ADS)

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

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

297

las antropologías del mundo. transformaciones de la disciplina a través de los sistemas de poder 1  

Microsoft Academic Search

From world anthropologies' perspective, in this article we explore the diversity of anthropologies being practiced around the world in the early twenty-first century and the ways in which the pluralizing potential of globalization might enable anthropologists worldwide to benefit from this diversity. Our critical standpoint on the monotony and incompleteness of the current inter- national anthropological landscape, as it has

Gustavo Lins Ribeiro; Arturo Escobar

2006-01-01

298

SUSANA CARDOSO DE FREITAS, INVESTIGADORA DO INSTITUTO DE ENGENHARIA DE SISTEMAS E COMPUTADORES (INESC-MN)  

E-print Network

instituto e a formação avançada na área das nanotecnologias. Os seus interesses de investigação incluem Nanotecnologias em Portugal. O grupo de Estado Sólido do INESC individuaíi- ZDU-se em 2002 como INESC-Microsis- temas e Nanotecnologias (INESC-MN), e tem conseguido afirmar-se nacional e internacionalmente em várias

Instituto de Sistemas e Robotica

299

POLÍTICAS PÚBLICAS E SISTEMAS NACIONAIS DE INOVAÇÃO EM NANOTECNOLOGIA: EVIDÊNCIAS EMPÍRICAS NOS PAÍSES SELECIONADOS  

Microsoft Academic Search

The nanotechnology and the nanoscience can promote a revolution in various scientific and productive fields, generating a new wave of creative destruction, since the proprieties of the substances and products in the nanometric and molecular scale differ if compared to their proprieties in traditional scale. The article realizes a literature's review to delineate the state of the art and analyzes

GUSTAVO ANTONIO DE SOUZA; MÁRCIA REGINA GABARDO DA CÂMARA

300

PERSPECTIVAS DE UTILIZAÇÃO DE SISTEMAS MICROELETROMECÂNICOS (MEMS) VISANDO A INTEGRAÇÃO GPS\\/INS DE BAIXO CUSTO  

Microsoft Academic Search

RESUMO - Em levantamentos geodésicos, a integração GPS\\/INS enfrenta desafios em relação a questões de alto custo dos instrumentos e ausência de recursos computacionais específicos. A utilização de dispositivos de baixo custo, baseados em tecnologia MEMS (MicroElectroMechanical Systems), procura a redução do custo instrumental. Desta forma, utilizou-se um dispositivo de baixo custo contendo acelerômetros baseados em MEMS. Entretanto, os sensores

SANDRO REGINATO SOARES DE LIMA; CLÁUDIA PEREIRA KRUEGER

2002-01-01

301

Química de conchas de ostrácodos: una alternativa para medir la contaminación por metales en sistemas acuáticos  

Microsoft Academic Search

Trace metal accumulation in water, sediments and organisms is a major environmental concern because of the many adverse effects of heavy metals on human health. The rapid industriali- zation that has occurred over the last century highlights the significance and urgency to understand the historic records and effects of trace metals on the environment. We document the occurrence of trace

Manuel R. Palacios-Fest; Lisa E. Park; Jordi González-Porta; Martha R. Palacios-Fest; George R. Dix

2003-01-01

302

Indicadores para la Gestión de Riesgos: Aplicación del Sistema de Indicadores 1980 ¿ 2000: Bolivia  

Microsoft Academic Search

Los desastres son eventos socio-ambientales cuya materialización es el resultado de la construcción social del riesgo. Por lo tanto, su reducción debe hacer parte de los procesos de toma de decisiones, no sólo en el caso de reconstrucción posdesastre, sino también en la formulación de políticas públicas y la planificación del desarrollo. Por esta razón, es necesario fortalecer el desarrollo

Luis Eduardo Yamín; Omar D. Cardona

2006-01-01

303

Importancia de los recursos genéticos de la agrobiodiversidad en el desarrollo de sistemas de producción sostenibles  

Microsoft Academic Search

Colombia is a megadiverse country, from the viewpoint of genetic diversity, with ample ecosystem variability, which can be employed for the development of sustainable production systems, efficient and competitive. This means, besides conservation of strategic genetic resources of plants, animals and microorganisms, to know the potential of this agrobiodiversity for its ample utilization, with the support of conventional procedures and

2008-01-01

304

Sistema Tutor Inteligente integrado a Monitoria Estudantil para elaboração de um Assistente Virtual de Ensino Inteligente  

Microsoft Academic Search

This paper shows the project of extra activities carried on for students with support from Monitoring Aid, giving teachers a more complete vision about the cognitive situation of their students by the information system available on the Internet. The integration of this project to the formal architecture of Intelligent Tutoring Systems has obtained satisfactory results to teaching-learning in Computer area

Breno S. B. Assunção; Edelson S. Lopes; Vandor R. V. Rissoli

305

Relato de uma experiência de Sistema Híbrido no Ensino Fundamental: Projeto Aulativa  

Microsoft Academic Search

O Projeto Aulativa teve como objetivo principal repensar o modelo tradicional de aula e, ao mesmo tempo, introduzir novas práticas educacionais. Os princípios norteadores do projeto incluíram, entre outros, estimular a cooperação entre os participantes e desenvolver a autonomia na busca da informação e a capacidade de investigação. Para isso, utilizou-se, como metáfora, o recurso das histórias interativas. O projeto,

Laura Maria Coutinho Lopes; Carlos Klimick; Marco Antonio Casanova

306

Previses Globais de Mudanas Climticas com o Modelo Brasileiro do Sistema Climtico Global  

E-print Network

Henrique M. J. Barbosa1 , I.F.A. Cavalcanti2 , J.C.S. Chagas2 e S.N. Figueroa2 1 IF ­ USP, Rua do Matão implementado no MBSCG (Chagas e Barbosa, 2008). Para isso foi necessário incluir também uma microfísica nuvens (Barbosa e Chagas, 2009). Neste trabalho, o MBSCG foi modificado para considerar a variação

Barbosa, Henrique

307

Sistema Hipermídia com Interface Adaptativa em Câncer de Mama usando Redes Neurais Artificiais MLP e IAC  

Microsoft Academic Search

This article presents an interface adaptation methodology to hipermedia systems based on the methodology developed by Barbosa (1), where the site development with breast cancer contents is used to refine the students' knowledge of the healthy area of UFSC who receive in their classroom. While this system was been developed it was defined the adaptation will only occur in the

Rosele Luchesi Paim; Fernando Mendes de Azevedo; Grácia Maria Koerich; Márcia dos Santos Malinverni; Rozany M. Dufloth; Daniella S. C. Vieira; Felipe Chaves Santos

308

Sistemas Híbridos Aplicados à Filtragem de Sinais de Alarme de Proteção de uma Subestação Telecomandada  

Microsoft Academic Search

In this work an Artificial Inteligent Hybrid System is applied to the filtering process of an alarm signal set, generated at a substation. This combined system consists in an Artificial Neural Network, using MLP backpropagation algorithm and a Fuzzy Logic Inference System of the Mamdani type. The results show that the Hybrid System is able to interpret correctly the alarm

Milde Maria da Silva; Manoel Lira; Afonso de Carvalho Jr

309

O EFEITO DE INCONSISTNCIAS EM BASES DE TREINAMENTO PARA SISTEMAS SIMB\\  

Microsoft Academic Search

With the grow of data volume and the quantity of data bases in the last years begining to study a new research area nominated Data Mining (DM), this worry principaly to found utily and new informations inside of big data bases. This places the DM how a research area many profitable inside of Artificial Inteligence (IA). The grow of data

Martins Carvalho

2001-01-01

310

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

Microsoft Academic Search

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

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

2008-01-01

311

UM SISTEMA BASEADO EM CONHECIMENTO PARA DIAGNÓSTICO, SOLUÇÂO E APRENDIZADO DE FALHAS EM CONTROLADORES LÓGICOS PROGRAMÁVEIS  

Microsoft Academic Search

Programmable Logic Controllers (PLC) have been widely used in the control of automated industrial processes. The diagnosis, solution and learning of PLC failures represent an important topic in automation. However, there are not many special- ized references about this issue and, besides, the lack of expert people has aggravated the problem. This paper aims at proposing an approach for the

MARCELO P. WERNECK; LUIZ E. SOUZA

312

DEGRADACIÓN FÍSICA Y QUÍMICA DE UN HAPLUSTOL TÍPICO BAJO DISTINTOS SISTEMAS DE MANEJO DE SUELO  

Microsoft Academic Search

In the province of Tucumán there was a great process of expansion of the farming borders to dry sub humid and semi- arid areas. This process led to the physical, chemical and biological degradation of the soils. The objective of this work was to determine the long term effects of different tillage systems on physical and chemical degradation of a

GERARDO AGUSTÍN SANZANO; ROBERTO DANIEL CORBELLA; JOSÉ RAMÓN GARCÍA; GUILLERMO SALVADOR FADDA

313

Efeito da desrama artificial na qualidade da madeira de clones de eucalipto em sistema agrossilvipastoril  

Microsoft Academic Search

This work aimed to evaluate the effect of artificial pruning on wood quality of eucalypt clones, under an agrosylvopastoral system, owned by the Riacho of the Companhia Mineira de Metais Farm in Paracatu- MG, Brazil. The experiment was installed in December 1994 with the planting of seedlings of 3 clones of natural hybrids of Eucalyptus camaldulensis, Dehnh. (code 06) and

Rodrigo Silva do Vale; Renato Luiz Grisi Macedo; Nelson Venturin; Fábio Akira Mori; Augusto Ramalho de Morais

2002-01-01

314

EVOLUCIÓN DEL SISTEMA FINANCIERO COLOMBIANO DURANTE EL PERÍODO 1980-2007  

Microsoft Academic Search

The evolution and structure of Colombian fi nancial system is studied in this document. Its development has focused on banking; while stock market maintains incipient. Reforms at the beginnings of nineties, implementation of multibank and stock market unifi cation are some of most relevant changes. However, credit access is limited, banking effi ciency and its competence could increase, last tributary

JAIME ANDRÉS; SARMIENTO ESPINEL; LAURA ANDREA; CRISTANCHO GIRALDO

315

Equidad y distribución geográfica de recursos financieros en los sistemas de salud  

Microsoft Academic Search

This study focuses on equity in health and specifically the geographic distribution of financial resources. The author reviews the main contemporary theories of social justice and dis- cusses the concept of equity in general and specifically in the health field. Based on the discus- sion of selected international experiences (United Kingdom, Spain, and Italy), the Resource Allo- cation Working Party

Silvia Marta Porto

2002-01-01

316

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

SciTech Connect

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.

Not Available

2007-09-01

317

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

SciTech Connect

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.

Not Available

2007-09-01

318

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

SciTech Connect

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.

Not Available

2005-10-01

319

Densidade, porosidade e resistência à penetração em Latossolo cultivado sob diferentes sistemas de preparo do solo  

Microsoft Academic Search

Soil tillage and management affect soil physical conditions for plant growth and crop productivity. The objective of this research was to evaluate some soil physical properties of an Typic Haplorthox located in the Northwest region of the State of Paraná, Brazil, after two years of different tillage systems, with same crop. The tillage systems used were: No-tillage (cultivated only along

Cássio Antonio Tormena; Mauro Cezar Barbosa; Antônio Carlos Saraiva da Costa; Antonio Carlos Andrade Gonçalves

2002-01-01

320

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

ERIC Educational Resources Information Center

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…

Valle, Victor M.

321

INAUGURACI DEL CURS ACADMIC DEL SISTEMA UNIVERSITARI CATAL 2011/2012  

E-print Network

per l'arquitectura, les ciències i les tecnologies sostenibles. Al vestíbul podreu veure el resultat'Enginyers Industrials de Barcelona i de Terrassa, i de l'Escola Tècnica Superior d'Arquitectura de Barcelona, a les Terrassa i de Vilanova i la Geltrú, així com les d'Arquitectura Tècnica de Barcelona, d'Enginyeria Tècnica

Casanellas, Marta

322

Sistema agro alimentare, industria alimentare e ruolo delle politiche di settore  

Microsoft Academic Search

The biotech revolution, after some relevant steps carried out in pharmaceutical industry, is now expanding over the world agricultural sector. The analysis of economic characteristics and research activities of this new sector, completed with scenario's evaluation - specifically related to North American and European markets - allow to define a specific view of industrial competitors. In this field, with some

De Castro Paolo

2000-01-01

323

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

E-print Network

photodegradation of organic contaminants in photo- Fenton processes (Fe2+ /H2O2/UV). Sample is injected manually (Fe2+ /H2O2/UV) tem atraído grande inte- resse no tratamento de efluentes devido ao seu alto poder a reação foto-Fenton depende da concentração de H2O2, o desenvolvimento de um procedimento automatizado

Jardim, Wilson de Figueiredo

324

1/4 CBEB 2008 SISTEMA PARA ESTIMAO DE INTENO DE MOVIMENTO EM  

E-print Network

2008 para a prótese, a coordenação entre os micro-controladores escravos para fazer medições de diferentes variáveis, e a geração de trajetórias de juntas. Os micro-controladores escravos utilizados são d

Carvalho, João Luiz

325

MONITOREO DE UNA PLANTA SOLAR A PARTIR DE SISTEMAS DE ADQUISICIÓN DESARROLLADOS CON INSTRUMENTACIÓN VIRTUAL  

Microsoft Academic Search

This article describes the development of a system that allows monitoring, using Virtual Instrumentation, electricity generating Plants formed by photovoltaic modules. The acquisition and statistical processing of the collected data are made through Virtual Instruments developed based on I\\/O modular high precision Field Point type electronic systems and special programs developed with LabVIEW graphic programming software. The system has facilities

N. L. Forero; L. M. Caicedo; J. Hernández

2006-01-01

326

FUZZYCOMP: UNA HERRAMIENTA PARA LA CONSTRUCCIÓN DE PROTOTIPOS DE SISTEMAS DIFUSOS EN MICROCONTROLADORES DE 8 BITS  

Microsoft Academic Search

This article presents the development of a software tool that allows the implementation of Fuzzy Systems (FS) on 8 bits microcontrollers. Similar to a compiler, this tool generates the code in assembler for efficient execution of the fuzzy system on a CPU08 microcontroller family. The code is generated from a textual specification of the fuzzy system. Therefore this tool reduces

JORGE BAENA; Grupo de Microelectrónica; Facultad de Ingeniería; MÓNICA VALLEJO; JOSÉ AEDO

2002-01-01

327

IMPACTO DE COSTOS AMBIENTALES EN EL DESPACHO DEL SISTEMA INTERCONECTADO CENTRAL  

E-print Network

Hugh Rudnick Escuela de Ingeniería, Pontificia Universidad Católica de Chile Casilla 306, Correo 22, Santiago, Chile Fono 56-2-6864281 Fax 56-2-5522563 Email hrudnick@ing.puc.cl Homepage http del combustible utilizado. Desde el punto de vista social, estos efectos deben considerarse como

Catholic University of Chile (Universidad Católica de Chile)

328

Sistema Chile Solidario: Protección Social Integral a las 225.000 Familias más Pobres del País  

Microsoft Academic Search

Esta presentación fue comisionada por la Red de Reducción de la Pobreza y Protección Social del Diálogo Regional de Política para la IV Reunión Hemisférica celebrada los días 11 y 12 de noviembre de 2002. El crecimiento económico sostenido experimentado por el país desde mediados de los 80 hasta 1998, permitió una importante y sostenida disminución de la pobreza y

2002-01-01

329

El sistema urbano de Chile central. Desafíos sociales y medio ambientales  

Microsoft Academic Search

Se encuentran en el territorio de Chile a inicios del tercer milenio, tres áreas metropolitanas: Santiago, Valparaíso-Viña del Mar y Concepción-Talcahuano, más la Conurbación La Serena-Coquimbo. Las ciudades de nivel intermedio siguen en rango y llegan a doce centros las mayores de 100.000 habitantes. La localización de estos centros urbanos presentan un carácter litoral al norte de Santiago, en cambio,

Didima Olave Farias

2007-01-01

330

AKTIVNI PREMIKI OB PRELOMIH PERIADRIATSKEGA PRELOMNEGA SISTEMA V VZHODNI SLOVENIJI: PRVI REZULTATI GPS-MERITEV  

Microsoft Academic Search

Razširjeni povzetek Periadriatski prelomni sistem (PPS) je ena izmed najbolj pomembnih postkolizijskih struktur v Alpah. V procesih miocenske ekstruzije ozemlja Vzhodnih Alp proti vzhodu se je ob PPS, ki je imel vlogo ju&ne meje ekstruzije, izvršilo najmanj 100 km desnega premika. Jedro prelomne cone PPS po zaetku srednjega miocena sicer ni bilo veaktivno, saj najvzhodnejši del cone, ki izdanja vzhodni

Marko Vrabec; Polona PavloviPrešeren; Bojan Stopar

331

Emisión H? en sistemas binarios cromosféricamente activos (RS CVn y BY Dra)  

NASA Astrophysics Data System (ADS)

We report here high and medium resolution Balmer H? line profiles for 11 chromospherically active binary systems including the class of RS Canum Venaticorum binaries (RS CVn) and BY Draconis (BY Dra) with a total range of rotation periods from 0.8 to 24 days. We have obtained different types of H? line profiles: strong emission line, weak emission line with strong superposed absorption profile and filled-in absorption line profile. We have measured the H? equivalent width of the program stars and the H? core emission was determined by subtraction of the equivalent width of a presumably inactive star with the same spectral type and luminosity class.

Fernández-Figueroa, M. J.; Montes, D.; de Castro, E.

1992-05-01

332

SISTEMA DE VISIÓN ARTIFICIAL PARA EL REGISTRO DE DENSIDAD PEATONAL EN TIEMPO REAL  

Microsoft Academic Search

In this work, we describe development, implementation, and testing of a computer vision system for passer-by detection in a controlled environment during a specified time window. Proposed system is parameter-free, calibration- free, and single-camera. System localizes and tracks in real-time a passer-by within the interest zone, determines his or her direction, and keeps a detailed record. This paper also summarize

MAURICIO ABRIL CAÑAS; Ingeniero Electricista; BONIE JOHANA RESTREPO; GERMÁN ANDRÉS HOLGUÍN

2007-01-01

333

Introducción de algoritmos genéticos en sistemas de reconocimiento de objetos 2D  

Microsoft Academic Search

This paper presents the optimization of the hierarchical classification stage thresholds of a new unsupervised planar shape recognition algorithm which has been implemented for an autonomous mobile agent and thus must be precise to avoid external supervision. Since the thresholds are mutually dependant and function of multiple variables, classical methods often fail to find suitable values.Genetic Algorithms are a powerful

A. Bandera; C. Urdiales; F. Arrebola; F. Sandoval

334

EXAMEN DE ALGOR ITMICA. Segundo Ingeniera Tecnica en Informatica de Gestion y de Sistemas. Febrero 2003  

E-print Network

del tiempo de ejecuciâ??on. ¿Se puede obtener # del tiempo de ejecuciâ??on? b) (1 punto) Calcular o (oâ??as desfavorable es un array de datos pares ordenados inversamente. El tiempo serâ??a: t M (n) = n # k=1 n # l=k+1 l los nodos, y câ??omo se puede usar el mâ??etodo de avance râ??apido anterior en combinaciâ??on con el Branch

Giménez, Domingo

335

EXAMEN DE ALGORITMICA. Segundo Ingenieria Tecnica en Informatica de Gestion y de Sistemas. Febrero 2003  

E-print Network

del tiempo de ejecuci´on. ¿Se puede obtener del tiempo de ejecuci´on? b) (1 punto) Calcular o (o´as desfavorable es un array de datos pares ordenados inversamente. El tiempo ser´a: tM (n) = n k=1 n l=k+1 l r=k 1 los nodos, y c´omo se puede usar el m´etodo de avance r´apido anterior en combinaci´on con el Branch

Giménez, Domingo

336

EXAMEN DE ALGORITMICA. Segundo Ingenieria Tecnica en Informatica de Gestion y de Sistemas. Septiembre 2003  

E-print Network

O del tiempo de ejecuci´on del algoritmo. ¿Se puede obtener ? b) (1 punto) Estudiar y o del tiempo . Dado que la intersecci´on de y O es vac´ia no conocemos . b) Para estudiar el tiempo promedio contamos´e marcado, 1 corresponde a la actualizaci´on interna, y tp cc1v es el tiempo promedio de cc1v. Del mismo

Giménez, Domingo

337

Escuela Complutense Latinoamericana Buenos Aires 2011 Curso: Modelizacion y simulacion matematica de sistemas  

E-print Network

a unir modelado y programaci´on paralela. El trabajo pr´actico consta en resolver por el m´etodo de´on adicional. Se deber´an tomar tiempos y aumentar el tama~no del problema para que la paralelizaci´on hasta

Figueira, Santiago

338

EXAMEN DE ALGORITMICA. Segundo Ingenieria Tecnica en Informatica de Gestion y de Sistemas. Diciembre 2003  

E-print Network

calcular´ia del tiempo promedio suponiendo que los elementos del array son enteros entre 0 y 9 (no hace) En ese caso m´as favorable el tiempo tiguales es constante, con lo que tm = n i=1 k = nk, y tm (n inferior y superior del tiempo promedio, con lo que: e) tp(n) (n), f) tp(n) O n2 . Para obtener el orden

Giménez, Domingo

339

APRENDIZAJE HIBRIDO DE LA BASE DE CONOCIMIENTO DE UN SISTEMA BASADO EN REGLAS DIFUSAS MEDIANTE  

E-print Network

ALGORITMOS GEN´ETICOS Y COLONIAS DE HORMIGAS J. Casillas, O. Cord´on, F. Herrera Dept. Ciencias de la (particiones difusas y reglas difusas), que combina un algoritmo gen´etico y un algoritmo de opti- mizaci colonias de hormigas (proceso COR-OCH). Para la definici´on de la BD se emplear´a un Algoritmo Gen´etico

Casillas Barranquero, Jorge

340

Otimização de controladores nebulosos e sistemas especialistas reativos utilizando algoritmos genéticos  

Microsoft Academic Search

This work presents the development of a tool for fuzzy control and reactive expert system parameters otimization using genetic algorithms. This tool allows the use of genetic algorithms to determine the optimal values to the fuzzy control and to the expert system parameters, responsible, respectively, by the reactive behaviour and by the instintive behaviour of the UFSC-Team agents. Therefore, the

Eder Mateus; Nunes Gonçalves; Augusto Loureiro da Costa; Guilherme Bittencourt

341

REDES DE PETRI Y ALGORITMOS GENÉTICOS, UNA PROPUESTA PARA LA PROGRAMACIÓN DE SISTEMAS DE MANUFACTURA FLEXIBLE  

Microsoft Academic Search

this paper uses the Petri networks and genetic algorithms strengths for modelling and solving manufacturing systems and combinatorial problems, respectively. This article generates active schedules for flexible manufacturing systems that minimize weighted tardiness. The algorithm works for problems involving aspects such as: setups dependent on the operations sequences, stations with non identical parallel machines and stations buffers with finite capacity.

Juan Pablo Caballero Villalobos; Gonzalo Mejía

2006-01-01

342

SUPLEMENTAÇÃO NA TARIFAÇÃO DE USO DO SISTEMA DE TRANSMISSÃO DE ENERGIA ELÉTRICA UTILIZANDO ALGORITMOS GENÉTICOS  

Microsoft Academic Search

Assuming a competitive market environment, one of the challenges for the electric utilities is related to maximize ef- ficiency on sale and production of electrical energy. So, the investment in the systems should be recovered through the use of system charges. The charges should be allocated among customers in such way it results in economic efficiency and must have influence

DANIELLY F. P. DE MOURA; WELLINGTON S. MOTA; FRANCISCO MARCOS DE ASSIS; S. DE JESUS

343

Participación del sector privado en los sistemas de agua potable y saneamiento: Ventajas, riesgos y obstáculos  

Microsoft Academic Search

El objetivo de este trabajo es analizar la incorporación del sector privado a los servicios de agua y saneamiento desde una doble perspectiva. De un lado, se discute en qué medida la incorporación del sector privado permite romper el círculo de ineficiencia en la que están atrapados la mayoría de los servicios de agua y alcantarillado en la región y

Paulina Beato

1997-01-01

344

Aplicación de la simulación al diseño de los sistemas de riego por aspersión: el modelo SIRIAS  

Microsoft Academic Search

En el diseño de instalaciones de riego se busca fundamentalmente la mayor uniformidad en el reparto de\\u000aagua, ya que ésta afecta a la producción del cultivo y a la eficiencia en la utilización del agua y la energía. Se\\u000apresenta una metodología para la distribución del agua de un aspersor teniendo en cuenta la acción del viento.\\u000aPara ello

Pedro Carrión; Jesús Montero; José Maria Tarjuelo

1970-01-01

345

ENERGÍA Y AMBIENTE: PASADO, PRESENTE Y FUTURO PARTE TRES: SISTEMA ENERGÉTICO BASADO EN EL HIDRÓGENO  

Microsoft Academic Search

Resumen Las energías alternativas (EA) son fuentes energéticas de mayor calidad ambiental y perdurabilidad que las de tipo fósil. Sin embargo, su producción intermitente y\\/o alejada de los centros de consumo, sus dificultades de transporte y almacenamiento hacen imprescindible la utilización de un vector energético que conecte los centros de producción con los de consumo. La electricidad lo es actualmente,

Fausto Posso

2003-01-01

346

Sarcoma granulocítico de sistema nervoso central pós transplante de medula óssea: relato de caso  

Microsoft Academic Search

RESUMO - Sarcoma granulocítico é tumor sólido, constituído por células precursoras de granulócitos, localizado em sítio extra medular. Geralmente surge precedendo uma leucemia mielóide aguda ou concomitantem ente a ela, sendo considerado fator de mau prognóstico. Tem como principais modalidades terapêuticas a radioterapia e a quimioterapia. Um caso de sarcoma granulocítico intracraniano ocorrido seis meses após transplante de medula óssea

Cláudio Esteves Tatsui; Andrei Koerbel; Daniel Monte-Serrat Prevedello; João Candido Araújo; Léo Fernando da Silva Ditzel; Luis Fernando Bleggi-Torres

2002-01-01

347

Atributos químicos e físicos de um Argissolo Vermelho-Amarelo em sistema integrado de produção agroecológica  

Microsoft Academic Search

The objective of this study was to evaluate the influence of agroecological management systems on physical and chemical attributes of an Udult soil. The following areas were selected: conventional tillage (corn\\/beans); no tillage (eggplant\\/corn); consortium of passion fruit\\/Desmodium sp.; fig cultivation; and an agroforestry system (AFS). The undisturbed soil samples were taken from two layers (0-5 and 5-10 cm) and

Maria Ribeiro da Silva

2009-01-01

348

Versión avanzada del sistema Diralec: una tecnología para el análisis de la calidad de la leche  

Microsoft Academic Search

Advanced version of diralec system: a breakthrough technology for the analysis of the quality of the milk. The National Center for Scientific Research (CNIC) and the National Center for Agricultural Sanitation (CENSA) have been jointly working for over a decade on the development of the Diralec System to evaluate the bacteriological quality of the milk. Diralec-02 is the latest version

Nardo Ramírez; José Álvarez; Pastor Ponce; Enrique Suárez; Juan E Hernández

2007-01-01

349

A UTILIZAÇÃO DOS SISTEMAS DE INFORMAÇÃO GEOGRÁFICA COMO AUXÍLIO PARA UMA FERTILIZAÇÃO MAIS RACIONAL  

Microsoft Academic Search

A utilização de matérias fertilizantes de forma pouco correcta, quer quantitativa quer qualitativamente, apresenta-se hoje em dia como uma das principais ameaças em termos ambientais aos ecossistemas agrícolas. De facto a aplicação de nutrientes sem ter em conta as existências no solo ou o potencial produtivo das culturas a que se destinam, conduz a aplicações por defeito ou por excesso

S. Dias; M. P. Rasquilha

350

DETERMINAÇÃO DE MAPA DE QUALIDADE DE UM RESERVATÓRIO UTILIZANDO SISTEMA FUZZY  

Microsoft Academic Search

Resumo - A principal tarefa da engenharia de reservatórios é o desenvolvimento e gerenciamento de campos de petróleo a fim de determinar a melhor estratégia de produção e recuperação de óleo e gás. Dependendo do caso, procura-se buscar a maximização da produção de hidrocarbonetos e de indicadores econômicos, ou realizar uma comparação entre projetos para que se trabalhe com projetos

L. Nakajima; C. C. Mezzomo; D. J. Schiozer; I. R. Guilherme

351

Sistema mecánico de dirección a las cuatro ruedas para vehículos automóviles  

Microsoft Academic Search

Reduced radius for U-turns, improved manouvrability in narrow spaces and easier parking, are some of the advantages introduced by rear-axle steering systems. Furthermore, these systems provide a better behaviour of vehicle at high speeds: increased velocity in curves and reduction of overturning are some of this advantages. Although most of these systems are hydraulically actuated and electronically controlled, fully mechanical

D. Dopico; J. Cuadrado; P. Morer

352

ANÁLISIS DE ÁRBOL DE FALLAS DEL SISTEMA DE UNA LLAVE PARA AGUA  

Microsoft Academic Search

La competitividad en las organizaciones es un factor primordial para su permanencia y desarrollo en el mercado. Para ello, los procesos de fabricación y los productos se monitorean constantemente incluso cuando están en su fase de diseño para asegurar la calidad que los clientes exigen. Los costos generados por reparaciones en las instalaciones del cliente o por la salida de

Rosalva Martínez Aguilar; José Francisco Rodríguez Silva

2007-01-01

353

Productos de software para la facilitación del aprendizaje sobre sistemas de producción de bovinos y ovinos  

Microsoft Academic Search

In this paper, we describe four developments oriented to help in the learning process on different issues of beef and sheep production systems. Also two preliminar tests for training of two of the products are presented. Products are a web-based Simulator of agricultural systems and three desktop software products, two about reproductive response of sheep and cattle, and one last

Claudio F. Machado; Mauricio Arroqui; Pablo Mangudo; Rodolfo Catalano; Eduardo Ponssa; Claudia Marcos

354

Desarrollo basado en modelos de sistemas Web de tele-educación TIN2006-09678  

Microsoft Academic Search

Model-based development is the suitable paradigm for web systems. Implementation technologies as well as offered functionality are in constant evolution. Abstract web designs are far more stable than the implementations, so it is essential to allow developers to express themselves using problem domain entities so there is an improvement in productivity. However, it must be noticed that web development teams

Paloma Díaz Pérez

355

Plataforma de e-Learning SEMENTE: Sistemas e Métodos de Ensino Usando Tecnologias de Informação Avançadas  

Microsoft Academic Search

Resumo — Neste trabalho apresentamos as ideias gerais e uma aplicação de novas tecnologias de informação para ensino de medicina e engenharia, desenvolvida no Projecto SEMENTE que está a decorrer na UBI no Departamento Electromecânica (DEM) e Faculdade de Ciências de Saúde (FCS) em colaboração com Hospital de Cova da Beira e Esco- la Secundária Campos Melo. Todos os módulos

Rui Pedro Costa; Anna D. Guerman; Cláudia Sofia Santos; Cristina Lopes; Adriano Raposo

356

Desenvolvimento de um Sistema para Anlise da Variabilidade da Freqncia Cardaca  

E-print Network

), Departamento de Engenharia Elétrica (ENE), Faculdade de Tecnologia (FT), Universidade de Brasília (UnB), Brasil Medicina (FMD), Universidade de Brasília (UnB), Brasil, 70910-090 Fone: +55 61 307 2274, Fax: +55 61 273

Carvalho, João Luiz

357

Mapeamento de Projees por Sistema Kinect-Projetor Projection Mapping for a Kinect-Projector System  

E-print Network

diversas aplicações. Chamada de Realidade Aumentada [1], essa tecnologia combina conceitos de realidade]. · Propaganda[9]. · Performances ao vivo[10]. · Lazer[11][12]. · Medicina[13]. · Quaisquer indivíduos que tecnologia. O framework proposto neste trabalho visa englobar as seguintes caracteristicas: · Compreensão dos

Barbosa, Alberto

358

La Tarea Intelectual en Matematicas Afecto, Meta-afecto y los Sistemas de Creencias  

Microsoft Academic Search

1I ntroduccion La investigacion en Educacion matematica ha estado principalmente centrada en los aspectos cognitivos, dejando un poco de lado los aspectos afectivos. En gran parte, posiblemente, esto sea debido al popular mito de que las matematicas son algo puramente intelectual, donde el comportamiento relativo a las emociones no juega un papel esencial. Por supuesto que nuestra perspectiva no esesta

Ines M. Gomez-Chacon

359

O Uso do Orçamento no Sistema de Gestão dos Supermercados e Hipermercados do Distrito Federal.1  

Microsoft Academic Search

Nowadays a lot of organizations have a structured management system in which decisions are taken in a step process of planning, executing and controlling. The purpose of this papers is to identify if the supermarkets and hypermarkets located in the Brazil Distrito Federal region use a formal budgeting process in their decision management system. Budget is a tool that can

Luciana Moura Gerônimo; Paulo Roberto; Barbosa Lustosa

360

Sistema andaluz del conocimiento (I+D+i): evolución y resultados  

Microsoft Academic Search

resumen abstract Studying the innovation systems is useful to identify regional differences in the capacity to research and inno- vate. Such capacity is linked to R&D investment that increase the stock of scientific knowledge, and to tech- nology transfer between the public R&D system and industry. This paper describes the Andalusian System of Knowkedge (R&D&i), and compare several dimensions to

Carlos A. Benavides Velasco; Cristina Quintana García

361

SISTEMAS DE INFORMAÇÃO NO ATENDIMENTO AO TRAUMA: ANÁLISE DA SITUAÇÃO ATUAL EM CURITIBA  

Microsoft Academic Search

3 Professora do programa de Pós-Graduação - Mestrado em Tecnologia da Saúde da PUCPR, Resumo - Nos estudos epidemiológicos o trauma é a principal causa de morte nas quatro primeiras décadas de vida e responsável pela perda de mais anos de vida produtiva, quando comparado à doença cardíaca e o câncer combinados. A informação e a comunicação têm um papel

Ubaldino da Rosa; Ferreira Filho; Sandra Honorato da Silva; Raquel Kolitski Stasiu

362

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

PubMed Central

El objetivo fue identificar incentivos de atracción y retención en zonas rurales y distantes de Ayacucho, Perú. Fueron realizadas entrevistas en profundidad con 80 médicos, enfermeras, obstetras y técnicos (20 por grupo) de las zonas más pobres y con 11 funcionarios. No existen políticas sistemáticas de atracción y retención de personal de salud en Ayacucho. Los principales incentivos, en orden de importancia, fueron mejoras salariales, oportunidades de formación y capacitación, estabilidad laboral y nombramiento, mejoras en infraestructura y equipos, e incremento del personal. Se mencionaron también mejoras en la vivienda y alimentación, mayor cercanía con la familia y reconocimiento por el sistema de salud. Existen coincidencias y singularidades entre los distintos grupos sobre los incentivos clave para estimular el trabajo rural, que deben considerarse al diseñar políticas públicas. Las iniciativas del Estado deben comprender procesos rigurosos de monitoreo y evaluación, para asegurar que las mismas tengan el impacto deseado. PMID:22488318

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

2014-01-01

363

Compilation of analytical methods to characterize and determine chitosan, and main applications of the polymer in food active packaging Recopilación de métodos analíticos para la caracterización y determinación del quitosano y las principales aplicaciones del polímero en los envases activos alimentarios  

Microsoft Academic Search

Antimicrobial films for food packaging applications have received increasing attention from the industry in recent years. Due to their exceptional properties, such as non-toxicity, biodegradability, antimicrobial characteristics, and biocompatibility, chitosan has proven useful for the development of active materials. This review aims to provide anoverview of the main techniques used for the characterization of chitin and chitosan, including Fourier transforminfrared

M. A. Lago; A. Rodríguez Bernaldo de Quirós; R. Sendón; A. Sanches-Silva; H. S. Costa; D. I. Sánchez-Machado; J. López-Cervantes; H. Soto Valdez; G. P. Aurrekoetxea; I. Angulo; P. Paseiro Losada

2011-01-01

364

SITUACIÓN SOBRE LAS EXPORTACIONES DE LAS CINCO PRINCIPALES ESPECIES FRUTALES DE CHILE A LOS MERCADOS DE AMÉRICA DEL SUR ENTRE LOS AÑOS 1993-2004 SITUATION ON THE EXPORTS OF THE FIVE MAIN FRUIT SPECIES FROM CHILE TO THE MARKETS OF SOUTH AMERICA BETWEEN YEARS 1993-2004  

Microsoft Academic Search

Since 1993 Chile initiates an active process of signing Economic Integration Treaties with several countries in South America and the MERCOSUR area that aimed to have commercial partners to place its exports within a pre-established frame of tariff preferences. In this research the results reached for the top five Chilean fruit species (grape, apple, pear, kiwi and avocado) are analyzed

Luis Tapia Iturrieta

365

Safe Computing: An Overview of Viruses.  

ERIC Educational Resources Information Center

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

Wodarz, Nan

2001-01-01

366

Detecting Virus Mutations Via Dynamic Matching Min Feng Rajiv Gupta  

E-print Network

Detecting Virus Mutations Via Dynamic Matching Min Feng Rajiv Gupta CSE Dept., University, the virus developers are employing obfuscation techniques to create mutating viruses. The current antivirus software can- not handle the obfuscated viruses well since its detection methods that are based upon static

Gupta, Rajiv

367

Symantec: Virus Alerts and Hoaxes  

NSDL National Science Digital Library

This website by Symantec (makers of Norton AntiVirus) provides information on the latest virus threats, security advisories, updates for Symantec products and removal tools, as well as some basic information on viruses. The Reference Area includes FAQ, a Glossary, Newsletter, White Papers, a section where you can Submit Virus Samples, postings of Hoaxes, a Security Database, Virus Encyclopedia, and Virus Calendar.

368

Lock It Up! Computer Security.  

ERIC Educational Resources Information Center

The data contained on desktop computer systems and networks pose security issues for virtually every district. Sensitive information can be protected by educating users, altering the physical layout, using password protection, designating access levels, backing up data, reformatting floppy disks, using antivirus software, and installing encryption…

Wodarz, Nan

1997-01-01

369

IT at Sussex Now you're at Sussex, you  

E-print Network

, check your email and use the customised set of programs installed on each PC to support your work to the internet You must install antivirus software if you connect your own Windows PC to the campus network! SeeIT at Sussex 2012|2013 #12;Now you're at Sussex, you have access to a wide range of computing

Sussex, University of

370

Software Analysis for Security Spiros Mancoridis  

E-print Network

vulnerabilities, and integer vulnerabilities to attack computer systems. One approach to software security control, file backups, anti-virus software, biometrics, intrusion detec- tion systems, and honey pots [38 of software systems. A particular emphasis is placed on validating security architectures, verifying

Mancoridis, Spiros

371

Revised: June 2, 2003 MICL Equipment  

E-print Network

. Utilities: Acrobat Reader Ghost View McAffee Antivirus Paint Shop Pro Quickdraw 3D Quicktime SSH Winzip #12;Revised: June 2, 2003 MICL Equipment: Workstations(25), file servers(2), scanner, laser printer, color laser printer, D-size large format printer. Equipment Location 14 Win2K Machines Dell P4, 2.3 GHz

Massachusetts at Amherst, University of

372

IT user guide Using the Kent network  

E-print Network

and links to free anti-virus software for Windows or Mac: www.kent.ac.uk/itservices/secure Saving. Don't lose your work - have a back up! It's too easy to lose precious work due to computer or software is on your Mac: click on the Apple icon and select About This Mac. The vers

Banaji,. Murad

373

Soil & Crop Sciences Inventory & IP Information Request Form  

E-print Network

adapter. Take care to read the IP address from the correct adapter. Max OS X: Click on the Apple antivirus software installed and will be kept current according to SAP 24.99.99.M1.23 which states software

374

WISC Software New Student Checklist  

E-print Network

WISC Software 2012 New Student Checklist 1. Sign up for text/email emergency messages. safe.uwm.edu; click on "Policies & Procedures" 3. Protect your computer with free campus anti-virus software. security: Bolton 225A TechStore.uwm.edu Stop by to test drive and purchase the most popular Apple, Dell and HP

Saldin, Dilano

375

Open Problems in Computer Virus Research  

Microsoft Academic Search

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

Steve R. White

1998-01-01

376

!#"%$'&)(!0"% Digital broadcast technology is hot. A casual glance at a newspaper reveals  

E-print Network

reveals it: articles describe the impact of streaming media, questions of intellectual property being. Broadcast enables quick and wide-spread distri- bution of software updates. For example, consider anti-virus software. Viruses utilize the Internet to infect hundreds of thousands of PC's in a few hours

Perrig, Adrian

377

RiskRanker: scalable and accurate zero-day android malware detection  

Microsoft Academic Search

Smartphone sales have recently experienced explosive growth. Their popularity also encourages malware authors to penetrate various mobile marketplaces with malicious applications (or apps). These malicious apps hide in the sheer number of other normal apps, which makes their detection challenging. Existing mobile anti-virus software are inadequate in their reactive nature by relying on known malware samples for signature extraction. In

Michael Grace; Yajin Zhou; Qiang Zhang; Shihong Zou; Xuxian Jiang

2012-01-01

378

Malware Obfuscation Techniques: A Brief Survey  

Microsoft Academic Search

As the obfuscation is widely used by malware writers to evade antivirus scanners, so it becomes important to analyze how this technique is applied to malwares. This paper explores the malware obfuscation techniques while reviewing the encrypted, oligomorphic, polymorphic and metamorphic malwares which are able to avoid detection. Moreover, we discuss the future trends on the malware obfuscation techniques.

Ilsun You; Kangbin Yim

2010-01-01

379

University of Bristol Information Security Policy  

E-print Network

, smartphones, tablets, USB sticks, external or removable disc drives and flash/memory cards. Scope This policy system and its applications. Devices which are at risk of malware infection must run anti-virus software not undermine the security of the device (e.g. by "jail breaking" or "rooting" a smartphone). Do not leave

Bristol, University of

380

Science and Technology Resources on the Internet: Computer Security.  

ERIC Educational Resources Information Center

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

Kinkus, Jane F.

2002-01-01

381

Standard software installations Standard software, as listed below, is installed free of charge on all University of Aberdeen supplied PCs and Windows laptops.  

E-print Network

Standard software installations Standard software, as listed below, is installed free of charge with Microsoft Windows 7 64-bit Enterprise Edition as standard. Software Name Description 7-Zip Used to open transfer Microsoft Security Centre Endpoint Protection (SCEP) 2012 Anti-virus software for University

Pym, David J.

382

An artificial immune system architecture for computer security applications  

Microsoft Academic Search

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

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

2002-01-01

383

How To: Protect against a Zero-Hour Attack  

ERIC Educational Resources Information Center

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

McCarthy, Rob

2005-01-01

384

A Comparative Study on Marketing Mix Models for Digital Products  

E-print Network

A Comparative Study on Marketing Mix Models for Digital Products KanLiang Wang1 Yuan Wang1 Jing for digital products. It is significant to discuss whether established marketing models can be revised, and then three typical digital products, in- cluding e-books, anti-virus, and online translation services

Yao, JingTao

385

Peace (of Mind) in Our Time  

ERIC Educational Resources Information Center

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…

Panettieri, Joseph C.

2007-01-01

386

Residence Life Office 101 Turner Hall  

E-print Network

will provide my own Payment Information: Check No._____________ Credit Card (Visa or MasterCard) Complete individual room, you must follow these steps: 1. Submit this form with check or credit card (make checks antivirus. Refunds are not available for any or all past dates for lost connection due to either a port

Vonessen, Nikolaus

387

How Much Security Does Your Library Need?  

ERIC Educational Resources Information Center

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…

Banerjee, Kyle

2003-01-01

388

Security Adoption in Heterogeneous Networks: the Influence of Cyber-insurance Market  

E-print Network

Security Adoption in Heterogeneous Networks: the Influence of Cyber-insurance Market Zichao Yang the awareness of these risks and the availability of anti-virus software, investment in security protection of the network. Our second con- tribution is in analyzing a new form of risk management called cyber

Lui, John C.S.

389

Proceedings of the 2003 IEEE Workshop on Information Assurance  

E-print Network

interconnected nature of today's computers and the reactive nature of anti-virus (AV) technologies. A virus formal specification [2]. It has previously been argued that computer viruses are artificial life forms. Unlike a biological life form, the organs of a computer virus may not be physically distinguishable from

Lakhotia, Arun

390

Computer Viruses: Pathology and Detection.  

ERIC Educational Resources Information Center

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

Maxwell, John R.; Lamon, William E.

1992-01-01

391

The impact of countermeasure propagation on the prevalence of computer viruses  

Microsoft Academic Search

Countermeasures such as software patches or warnings can be effective in helping organizations avert virus infection problems. However, current strategies for disseminating such countermeasures have limited their effectiveness. We propose a new approach, called the countermeasure competing (CMC) strategy, and use computer simulation to formally compare its relative effectiveness with three antivirus strategies currently under consideration. CMC is based on

Li-chiou Chen; Kathleen M. Carley

2004-01-01

392

Biologically Inspired Defenses Against Computer Viruses  

Microsoft Academic Search

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

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

1995-01-01

393

Multi-Stage Delivery of Malware Marco Ramilli  

E-print Network

Introduction Ever since Cohen's 1984 paper [6] described computer viruses in detail, a battle has raged between virus writers and anti-virus defenders. The simple computer virus has evolved into more complex stealth Department of Computer Science University of California, Davis Davis, CA 95616-8562, USA bishop

Bishop, Matt

394

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

Microsoft Academic Search

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

Takeshi Okamoto; Yoshiteru Ishida

1999-01-01

395

A modified epidemiological model for computer viruses  

Microsoft Academic Search

Since the computer viruses pose a serious problem to individual and corporative computer systems, a lot of effort has been dedicated to study how to avoid their deleterious actions, trying to create anti-virus programs acting as vaccines in personal computers or in strategic network nodes. Another way to combat viruses propagation is to establish preventive policies based on the whole

José Roberto C. Piqueira; Vanessa O. Araujo

2009-01-01

396

The effectiveness of vaccinations on the spread of email-borne computer viruses  

Microsoft Academic Search

In the last decade, computer viruses have caused tremendous losses to organizations. New viruses continue to cause havoc, in spite of having better antivirus software. It is thus imperative that we understand what factors significantly influence the spread of viruses. In this paper, we model the networks of users as graphs. For simplicity, we assume that every user works only

S. Data; Hui Wang

2005-01-01

397

Computer viruses: a quantitative analysis  

Microsoft Academic Search

This paper provides interesting insights for anti-virus research, as it reflects a period of rapid uptake in the application of the Internet and the use of e-mail for business purposes. The purpose of the research is to provide independent justification of the growing prevalence of computer virus incidents over the past five years, and identify patterns in the frequency and

A. Coulthard; T. A. Vuori

2002-01-01

398

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

ERIC Educational Resources Information Center

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

Lateulere, John

1992-01-01

399

Modeling Computer Viruses MSc Thesis (Afstudeerscriptie)  

E-print Network

Modeling Computer Viruses MSc Thesis (Afstudeerscriptie) written by Luite Menno Pieter van Zelst About half a year ago, Alban Ponse, my thesis supervisor, suggested that the topic of `computer viruses indus- try and the creators of computer viruses. After all, the anti-virus industry stands to lose a lot

Amsterdam, University of

400

Defense Against the Dark Arts Computer science faculty must attract and retain students by offer-  

E-print Network

. Our initial vision was to offer a course covering computer viruses--a subject that even a novice. Keywords Anti-virus software, compilers, computer viruses, computer sci- ence education. 1 INTRODUCTION's students consider relevant. Given that computer security breaches, including those committed by viruses

Bailey, Mark W.

401

Detection of New Malicious Code Using N-grams Tony Abou-Assaleh, Nick Cercone, Vlado Keselj, and Ray Sweidan  

E-print Network

. INTRODUCTION Since the appearance of the first computer virus in 1986, a significant number of new viruses has Keselj, and Ray Sweidan Privacy and Security Laboratory, Faculty of Computer Science Dalhousie University is the standard technique in all commercial anti-virus software. This method can detect a virus only after

Keselj, Vlado

402

On the Spread of Viruses on the Internet Noam Berger  

E-print Network

, and the software removes the virus if the computer is found to be infected. A computer can be infected by the same. In this case, the antivirus software prevents any given computer from being reinfected with the same virusOn the Spread of Viruses on the Internet Noam Berger Christian Borgs Jennifer T. Chayes Amin

Chaudhuri, Surajit

403

In an effort to further protect the IT community, OMC is asking for your help in updating the local PC Symantec Anti Virus (SAV) client which is installed on you computer.  

E-print Network

PC Symantec Anti Virus (SAV) client which is installed on you computer. The manufacturer of the Anti-virus software which protects individual computers, our servers and by extension the network for us all has, but OMC does need your assistance to update every PC. You should do this on each and every computer

Sachs, Frederick

404

Virus Alert: Ten Steps to Safe Computing.  

ERIC Educational Resources Information Center

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

Gunter, Glenda A.

1997-01-01

405

Quantifying the Effectiveness of Mobile Phone Virus Response Mechanisms Elizabeth Van Ruitenbeek,  

E-print Network

@orange-ftgroup.com Abstract Viruses that infect smartphones are emerging as a new front in the fight against computer viruses the effectiveness of mobile phone virus response mech- anisms. 1. Introduction The enhanced computational measures can leverage existing antivirus efforts against traditional computer viruses

Illinois at Urbana-Champaign, University of

406

The Queen's College ICT Rules and Regulations for the use of Computing Facilities  

E-print Network

of facilities 1. Your computer MUST have up-to-date anti-virus software that updates automatically from for University members. http://www.oucs.ox.ac.uk/viruses/ 2. Your computer MUST be kept up-to-date with operating computer vulnerable to viruses, malware and malicious attacks which could result in your computer being

Capdeboscq, Yves

407

A Pact with the Devil Mike Bond and George Danezis  

E-print Network

be damned." The Tragicall History of D. Faustus -- Christopher Marlowe Computer viruses and their payloads computer), through user education, to sophisticated anti-virus software, which today include full virtualA Pact with the Devil Mike Bond and George Danezis Computer Laboratory, University of Cambridge, 15

Danezis, George

408

Scob Attack: A Sign of Bad Things to Come?  

Microsoft Academic Search

A recent Internet attack that exploited a powerful new assault technique has computer security officials worried that it could be a harbinger of worse things to come. The attack was based on a Trojan horse - a nonreplicating program that hides malicious code inside apparently harmless programming, data, or Web pages - dubbed JS.Scob.Trojan by antivirus experts. These servers hosted

Neal Leavitt

2004-01-01

409

JStill: Mostly Static Detection of Obfuscated Malicious JavaScript Code  

E-print Network

JStill: Mostly Static Detection of Obfuscated Malicious JavaScript Code Wei Xu Department University University Park, PA szhu@cse.psu.edu ABSTRACT The dynamic features of the JavaScript language the detection of anti-virus software. To defend against ob- fuscated malicious JavaScript code, in this paper we

Zhu, Sencun

410

The Power of Obfuscation Techniques in Malicious JavaScript Code: A Measurement Study  

E-print Network

The Power of Obfuscation Techniques in Malicious JavaScript Code: A Measurement Study Wei Xu University, University Park Email:{wxx104, fuz104, szhu}@cse.psu.edu Abstract JavaScript based attacks have rely on anti-virus software to protect themselves from malicious JavaScript code, attackers exploit

Zhu, Sencun

411

Collective Defense: Applying the Public-Health Model to the Internet  

Microsoft Academic Search

Governments, enterprises, and consumers face myriad technically advanced and persistent computer threats. Commonly available cyberdefenses such as firewalls, antivirus software, and automatic updates for security patches help reduce the risk from threats. However, they're inadequate because many consumers sometimes ignore the guidance provided or engage in other unsafe actions (such as downloading executable programs from unknown sources). Those with infected

Scott Charney

2012-01-01

412

An Impact Assessment Model for Distributed Adaptive Security Situation Assessment*  

E-print Network

Teknowledge Corporation Abstract: The goal of any intrusion detection, anti-virus, firewall or other security of a system to complete its mission. A human or robot analyst can use the model to assess the security status of a monitored system and to allocate resources in an optimal way. 1. Introduction* Intrusion detection and other

California at Davis, University of

413

Framework for Zombie Detection Using Neural Networks  

Microsoft Academic Search

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

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

2009-01-01

414

January, 2014 IT Help Desk  

E-print Network

://cf.umaryland.edu/software_sales/ Windows 8.1 Professional upgrade (32 or 64 bit) Office 2013 Professional Plus (Windows) Windows 8 Professional upgrade (32 or 64 bit) Office 2010 Professional Plus (Windows) Windows 7 Ultimate upgrade (32 or 64 bit) Office 2011 Standard (MAC) Windows Vista Ultimate upgrade (32 bit) Symantec Anti-Virus (End

Weber, David J.

415

Variant Rabbit Hemorrhagic Disease Virus in Young Rabbits, Spain  

PubMed Central

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

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

2012-01-01

416

Lesions more than cerebellum in a puerpera of acute cerebellitis: concurrent encephalitis, not a subtype of ADEM  

PubMed Central

Key Clinical Message We report a puerpera who has acute-onset ataxia with fever, headache, convulsions, and altered mental status. She had a good response to antivirus treatment and low-dose steroid. Acute cerebellitis was the tentative diagnosis. But concurrent encephalitis was proposed with multiple lesions beyond cerebellum. PMID:25356202

Zhang, Yong-Qing; Chen, Dan; Zou, Ya-Fen; Huang, Ming; Jia, Xiao-Yan

2013-01-01

417

Macroeconomic Analysis of Malware Vaibhav Garg, L. Jean Camp  

E-print Network

is on an explanation of and argument for our method: macroeconomic analysis informed by crime science.1 I. INTRODUCTION Technical efforts, such as, anti-virus, aim to thwart cyber- criminals, through what is effectively an arms of policy and technical solu- tions to crime online, not grounded in deterrence, requires a science

Camp, L. Jean

418

The synthesis of analogs of shuangkangsu, a novel natural cycloperoxide glucoside from Lonicera japonica Thunb.  

PubMed

Four novel optically pure cycloperoxide glucosides 9a, 9b, 10a, and 10b, analogs of shuangkangsu--a natural product with unusual skeleton and antivirus activity from the buds of Lonicera japonica Thunb, were firstly synthesized by employing peroxidation and glucosidation reactions from phthalaldehyde or 4,5-dichloro phthalaldehyde and glucose. PMID:19219731

Tang, Yan-Bo; Huang, Long-Jiang; Li, Di-Zao; Zhang, Qing-Jian; Chen, Ruo-Yun; Yu, De-Quan

2009-01-01

419

GPS, punto de contacto entre la Astronomía y otras disciplinas  

NASA Astrophysics Data System (ADS)

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

Perdomo, R.

420

Determinacion de Caracteristicas Opticas del Telescopio OAN150  

NASA Astrophysics Data System (ADS)

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.

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

1987-05-01

421

Diseño de un software software educativo para el análisis de educativo para el análisis de sistemas hidráulicos a presión en ingeniería civil sistemas hidráulicos a presión en ingeniería civil Designing educational software for analysing pressurised hydraulic systems in civil engineering  

Microsoft Academic Search

New information technologies have opened up a world of inexhaustible possibilities in teaching. Using such technologies in technical teaching has become indispensable due to the nature of current resources in industrial design and production. This work consists of preparing didactic material (educational software) aimed at tea- ching fluid mechanics, particularly analysing tube, tank and pumping systems, initially aimed at civil

Myriam Rocío; Pallares Muñoz; Wilson Rodríguez Calderón

2006-01-01

422

Esteróides anabolizantes: mecanismos de ação e efeitos sobre o sistema cardiovascular Anabolic steroids: action mechanisms and effects on the cardiovascular system Esteroides anabólicos: mecanismos de acción y efecto sobre el sistema cardiovascular  

Microsoft Academic Search

Anabolic androgenic steroids are ergogenic aids commonly used by athletes in search of better performances. However, the use of these substances by individuals who are not athletes with aesthetic aims is becoming an increasing problem in fitness and sport centers. This behavior has favored the indiscriminate and abusive use of these steroids, exposing their users to health risks. Anabolic steroids

Fernando Lima Rocha; Fernanda Roberta Roque; Edilamar Menezes de Oliveira

423

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

Microsoft Academic Search

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

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

2008-01-01

424

Implantação e funcionalidades de um sistema de informação geográfica mineral na Companhia Vale do Rio Doce - CVRD  

Microsoft Academic Search

This work develops a geoprocessing application model to the necessities of a mining company in technician works about geologic evaluation resources and mineral research, enclosing governmental factors. A model for the implantation of a System of Geographic Information is presented, with the use of geoprocessing techniques, the organization in a georreferenced data base is possible, centered and in the same

Patrícia Procópio Calazans

425

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

Microsoft Academic Search

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

Marjorie Paris Colombini

426

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

Microsoft Academic Search

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

Marjorie Paris Colombini

427

Código para imageamento indireto de estrelas em sistemas binarios: simulação de variações elipsoidais e do perfil das linhas  

NASA Astrophysics Data System (ADS)

As estrelas secundárias em variáveis cataclí smicas (VCs) e binárias-x de baixa massa (BXBMs) são cruciais para o entendimento da origem, evolução e comportamento destas binárias interagentes. Elas são estrelas magneticamente ativas submetidas a condições ambientais extremas [e.g., estão muito próximas de uma fonte quente e irradiante; têm rotação extremamente rápida e forma distorcida; estão perdendo massa a taxas de 10-8-10-10 M¤/ano] que contribuem para que suas propriedades sejam distintas das de estrelas de mesma massa na seqüência principal. Por outro lado, o padrão de irradiação na face da secundária fornece informação sobre a geometria das estruturas de acréscimo em torno da estrela primária. Assim, a obtenção de imagens da superfície destas estrelas é de grande interesse astrofísico. A Tomografia Roche usa as variações no perfil das linhas de emissão/absorção da estrela secundária em função da fase orbital para mapear a distribuição de brilho em sua superfície. Neste trabalho apresentamos os resultados iniciais do desenvolvimento de um programa para o mapeamento da distribuição de brilho na superfí cie das estrelas secundárias em VCs e BXBMs com técnicas de astro-tomografia. Presentemente temos em operação um código que simula as variações no perfil das linhas em conseqüência de efeito Doppler resultante da combinação de rotação e translação de uma estrela em forma de lobo de Roche em torno do centro de massa da binária, em função da distribuição de brilho na superfície desta estrela. O código igualmente produz a curva de luz resultante das variações de aspecto da estrela em função da fase orbital (variações elipsoidais).

Souza, T. R.; Baptista, R.

2003-08-01

428

Análisis comparativo de las herramientas de programación Web: PHP, ASP y JSP, bajo los sistemas operativos Linux y Windows  

Microsoft Academic Search

Web Programming has generated in consecuence the creation of several development tools, therefore is important to identificate which offer good performance and under Operative System. The Web programming tools analized were: PHP, ASP and JSP, using the Operative System Linux and Windows with a common criterias. It was a descriptive trial, developing a prototype for PHP, ASP and JSP, in

Daladier Jabba Molinares; Adalgisa Alcocer Olaciregui; Carmenza Rojas Morales

429

Estudio general de la region del Lago Titicaca evaluando en forma preliminar un sistema de analisis interactivo de imagenes multiespectrales  

USGS Publications Warehouse

ERTS-1 digital data in the form of computer compatible tapes provide the geoscientist with an unusual opportunity to test the maximum flexibility of the satellite system using interactive computers, such as the General Electric Image 100 System. Approximately 9 hours of computer and operator time were used to analyze the Lake Titicaca image, 1443-14073, acquired 9 October 1973. The total area of the lake and associate wetlands was calculated and found to be within 3 percent of previous measurements. The area was subdivided by reflectance characteristics employing cluster analysis of all 4 bands and later compared with density values of band 4. Reflectance variations may be attributed to surface roughness, water depth and bottom characteristics, turbidity, and floating matter. Wetland marsh vegetation, vegetation related to ground-water effluents, natural grasses, and farm crops were separated by cluster analysis. Sandstone, limestone, sand dunes, and several volcanic rock types were similarly separated and displayed by assigned colors and extended through the entire scene. Waste dumps of the Matilde Zinc Mine and smaller mine workings were tentatively identified by signature analysis. Histograms of reflectance values and map printouts were automatically obtained as a record of each of the principal themes. These themes were also stored on a work tape for later display and photographic record as well as to serve in training. The Image 100 System is rapid, extremely flexible and very useful to the investigator in identifying subtle features that may not be noticed by conventional image analysis. The entire scene, which covers 34,225 km2, was analyzed at a scale of 1:600,000, and portions at 1:98,000 and 1:25,000, during a 9-hour period at a rental cost of $250 per hour. Costs to the user can be reduced by restricting its uses to specific areas, objectives, and procedures, rather than undertaking a complete analysis of a total scene.

Brockmann, C.E.; Carter, William D.

1976-01-01

430

EL SISTEMA DE VOUCHERS EN LA EDUCACIÓN: UNA REVISIÓN DE LA TEORÍA Y LA EVIDENCIA EMPÍRICA PARA CHILE  

Microsoft Academic Search

En Chile el 90% de los niños cursa su educación básica y media en escuelas municipales o particulares financiadas parcial o totalmente con recursos públicos. Los recursos que reciben estas escuelas dependen del número de alumnos atendidos. Cada alumno es \\

Cristian Aedo; Claudio Sapelli

431

Sistema recomendador colaborativo usando minería de datos distribuida para la mejora continua de cursos e-learning  

Microsoft Academic Search

Nowadays, the application of data mining techniques in e-learning and web based adaptive educational systems is increasing exponentially. The discovered useful information can be used directly by the teacher or the author of the course to improve the instructional\\/learning performance. This can be an arduous task and therefore educational recommender systems are used in order to help the teacher in

Enrique García Salcines; Cristóbal Romero Morales; Sebastián Ventura Soto; Carlos de Castro

2008-01-01

432

Sistemas de Información para Organizaciones que aprenden. Utilización de Técnicas de Minería de Datos en entornos PyME AUTORES  

Microsoft Academic Search

En la sociedad del conocimiento, la organización que aprende será aquella capaz de adaptarse y responder rápidamente a los cambios, en un continuo proceso evolutivo. Frente a la necesidad de reducir la dependencia que tiene la organización respecto al conocimiento que poseen los individuos, se propone una metodología que promueva la autoevaluación explícita del grupo social, para luego capturar, sistematizar

Alicia G. PICCO; Alicia M. INGRASSIA; Ramiro GALIZZI

433

La arquitectura del pastoreo: Uso del espacio y sistema de asentamientos en la Puna de Atacama (Susques)  

Microsoft Academic Search

RESUMEN El objetivo del trabajo es contribuir al conocimiento de la arquitectura del pastoreo en los Andes. El foco regio- nal del estudio es Huancar en el Departamento Susques (Jujuy, Argentina). En primer lugar se describen los sis- temas de asentamientos vinculados con las actividades pastoriles de Huancar y luego se presentan los esquemas del uso del espacio por parte

Barbara Göbel

2002-01-01

434

Sistemas Baseados em Localização em um Mundo Sem-fio com J2ME e API Location  

Microsoft Academic Search

The sprouting of a new generation of mobile devices, as well as the nanotecnologic and the accessibility of the LBS of high precision, allied to the biggest easiness of devices programming, opens the doors for new interactive applications, suggesting routes or points of interest, including services as geocodification and reverse geocodification, routes planning and maps generation and visualization services. This

Elias F. Lopes; Jaime G. Nogueira; Thiego G. Nacif; Thienne M. Johnson

435

Influencia de diferentes ecuaciones de transformacion del sistema UBVal RGU en el estudio fotometrico de cumulos galacticos.  

NASA Astrophysics Data System (ADS)

Three-colour photometry of ten open clusters in the RGU system has been carried out. The calibration sequence has been defined using the Buser's transformation equations between the UBV and RGU systems, while in earlier works the Steinlin's formulae have been used. The results have been compared with those given in these works. Some differences have been found in G, G-R and U-G as a function of the spectral type and the interstellar absorption. They have a systematic character.

Huestamendia Aparicio, G.

436

CONTAMINACION ENTEROBACTERIANA EN LA RED DE AGUA POTABLE Y EN ALGUNOS SISTEMAS ACUATICOS DEL SURESTE DE MEXICO  

Microsoft Academic Search

The total number of coliform, feacal, and other pathogenic bacteria were established in the surface layen of water and sediment samples collected at stations located in the Coat- zacoalcos and Tonala riven and the Ostion Lagoon in Veracruz, Mexico. The distnbution of the microorganisms found in the area studied seems to be influenced by the waste water dkharges and surface

HECTOR RODRIGUEZ-SANTIAGO; ALFONSO V. BOTELLO

1987-01-01

437

INDIAM - Um sistema de ensino para auxiliar estudantes na interpretação de mamogramas e diagnóstico de câncer de mama via Web  

Microsoft Academic Search

This paper presents an overview of INDIAM - INterpretation and DIAgnosis of Mammograms - an e-learning system for assisting medical students in the interpretation of mammograms and diagnosis of breast cancer. The knowledge base of INDIAM is composed of a mammographic database and breast cancer ontology. The system integrates a hypertext tutorial about breast cancer and four Web services: one

Ricardo S. Bôaventura; Denise Guliato; Mariangela S. Simedo; Marcelo A. Maia; Túlio A. A. Macedo; Rangaraj M. Rangayyan; Caixa Postal

2007-01-01

438

MODELO PARA FASE DE PLANEJAMENTO DE UM SISTEMA INTEGRADO DE GESTÃO EM USINAS DE CANA-DE-AÇÚCAR  

Microsoft Academic Search

To optimize the activities, services and products of a Sugar Cane Plant, the promising activity for Brazil's interior development, reducing losses, adding value to the final product and minimizing risks, through a planning of an Integrated Management System (IMS) which integrates Quality, Environment, Health and Occupational Safety. The article encloses the planning of an IMS, giving basic emphasis to the

Nelson Siqueira Neto; Antônio Pasqualetto

439

NOVA FILOSOFIA PARA O PROJETO DE SOFTWARES NA ÁREA DE SISTEMAS DE ENERGIA ELÉTRICA UTILIZANDO MODELAGEM ORIENTADA A OBJETOS  

Microsoft Academic Search

This work presents a new approach for the development of software for electric power systems, using object ori- ented modeling (OOM). The definition of class structures to represent power systems follows strictly the OOM paradigm and in- cludes the reuse of well-tested software employed by electric utilities. The physical elements are classified as structural and composition elements, defining different modeling

MARCELO N. AGOSTINI; ILDEMAR C. DECKER; AGUINALDO S. E SILVA

440

DESREGULACI ´ ON FINANCIERA, DESARROLLO DEL SISTEMA FINANCIERO Y CRECIMIENTO ECON ´ OMICO EN M ´ EXICO: EFECTOS DE LARGO PLAZO Y CAUSALIDAD  

Microsoft Academic Search

Specialized literature states that a deregulated financial system has positive eects on long-term economic growth. The Mexican finan- cial system has gone through two major phases: regulation until 1988 and soon after liberalization. In this framework, by using cointegra- tion and causality tests the eects of financial repression and financial intermediation on economic growth are examined.

Francisco Venegas Mart ´ inez; Angel Tinoco Zermeno; V ´ ictor Hugo; Torres Preciado

2009-01-01

441

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

E-print Network

hasta después de trans- curridos otros cien años, gracias a las valiosas contribuciones de James Joule y también por esos años (1860) que James Clerk Maxwell publicó su famosa expresión para la distribución de

Méndez Alcaraz, José Miguel

442

A assembléia de aves de áreas úmidas em dois sistemas de cultivo de arroz irrigado no extremo sul do Brasil  

Microsoft Academic Search

The wetland bird assemblage in two irrigated rice fields in southern Brazil. Seventeen wetland bird counts were conducted from November 1998 to March 1999 in two 52 ha rice paddies using no-tillage and \\

Rafael A. Dias; Maria Inês Burger

443

COEFICIENTES DE PARTIÇÃO DA ? ? -LACTOALBUMINA E ? ? -LACTOGLOBULINA EM SISTEMAS AQUOSOS BIFÁSICOS : INFLUÊNCIA DA MASSA MOLAR DO POLIMERO  

Microsoft Academic Search

In this work had been analyzed the partition coefficients (K) of ?-lactalbumin (?-la) and ?-lactoglobulin (?-lg) in Aqueous Two Phase Systems (ATPS) formed by polyethylene glycol (PEG) + potassium phosphate (FFP) + water, in pH 7 and 25°C. The ATPS preselected was formed by PEG of molecular mass (MM) 1500 Daltons, with concentrations 14% PEG -14% FFP, 16% PEG -14%

Giraldo Zuñiga; Reis Coimbra; L. A. Minim

2001-01-01

444

Prototipo HW y SW de un Sistema de Digitalizacin de Ramon Pla, Borja Martinez, Marius Monton y Jordi Carrabina  

E-print Network

librerías de procesamiento de imágenes (IPL) de Intel y las librerías OpenCV (Open Source Computer Vision últimas generaciones de procesadores de Intel [1]. OpenCV es una librería de algoritmos de implementación

Autònoma de Barcelona, Universitat

445

Circuiti di produzione e consumo “alternativi” per l’organizzazione del sistema agro-alimentare calabrese: un quadro introduttivo  

Microsoft Academic Search

The work aims at formulating hypothesis on the actual alterity (Kirwan, 2004) of those realities that either define themselves or have been considered in the Calabria political, social and scientific contexts as examples of “filiere corte”, that is as food practices characterised by the AFN (Alternative Food Networks) features, in the way they have been defined by the international scientific

Giovanni Gulisano; Simona DAmico; Anna Irene De Luca

2012-01-01

446

Sistema de Predicción y Clasificación para la Utilización de Recursos Humanos para el Área de Emergencias de un Hospital  

Microsoft Academic Search

The faulty quality in the attention toward the patients in the emergency's area in a hospital, as well as the limited human resources that work in the same one, are the main reasons to apply the techniques of data mining to help a improve the support of the decision in the care's industry . The Prediction and Classification System (SISPRED)

Fabricio Echeverría; Jennifer Avilés; Tatiana Navarro

447

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

ERIC Educational Resources Information Center

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

Peace Corps, Washington, DC.

448

PASTEUR: Un Sistema para Indexación y Búsqueda de Componentes de Software PASTEUR: An Indexing and Localization System for Software Components  

Microsoft Academic Search

This article presents PASTEUR, a system of indexing and localization of software components on large scale that promotes the commerce of components, in open, dynamic and heterogeneous environment. Its design and implementation are supported in the technology of systems P2P DHT from which it takes the distributed lookup and distributed storage services, adding services of distributed data, particularly for the

Alexandra Pomares Quimbaya

449

Un nuevo sistema de topografía de superficie de la espalda: fotogrametría digital. Fundamento, procedimiento y aplicación clínica cualitativa  

Microsoft Academic Search

IntroductionSome of the most known back surface topography methods are based on a structured light focus. This study aims to present a new method that uses a conventional light source to obtain an image which is then analyzed by digital photogrametry.

J. Pradas-Silvestre; J. M. Climent; A. Martínez-Assucena; D. Gumbau-Climent

2007-01-01

450

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

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…

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

451

Analysis of the maximum discharge of karst springs  

NASA Astrophysics Data System (ADS)

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

Bonacci, Ognjen

2001-07-01

452

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

453

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

NASA Astrophysics Data System (ADS)

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

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

2005-12-01

454

Page 1 of 3 Radiogram No. 3906u Form 24 for 08/23/2010  

E-print Network

Columbus VCA1 Setup 08:15-08:55 FE-5 Auxiliary Laptop Computer System Anti-Virus Update. Tagup:10-12:30 FE-3 IMS Update 13:00-14:00 . LUNCH 14:00-14:40 CDR Maintenance 14:00-14:15 FE-2 MELFI 3 Dewar 1 Function System Setup 14:20-14:25 FE-6 HRF Urine Sample Insertion Into MELFI 14:25-14:35 FE-6 Cube Video

455

Anti-malicious Code Technology Based on SSDT Restoration  

Microsoft Academic Search

(Abstract)By amending System Service Dispatch Table(SSDT), the malicious code can avoid being cleared by antivirus software or anti-malice software. Aiming at SDDT hook technology, this paper realizes an anti-malicious code technology based on SSDT restoration through system file relocation. It expatiates the method of resetting Ntoskrnl.exe files and the method of shifting comparison of Ntoskrnl.exe files. Experimental results show that

CHEN Meng

2009-01-01

456

Network Traffic Sensor for Multiprocessor Architectures: Design Improvement Proposals  

Microsoft Academic Search

\\u000a This document describes several design proposals to enhance net-work sensor performance on multiprocessor architectures. Our\\u000a main contributions are related to the design of an autonomous sensor and to the idea of per-forming some parallelization of\\u000a the analysis. These proposals can be implemented in network sensors such as intrusion detection systems, network antivirus\\u000a appliances, QoS monitors and any other device based

Armando Ferro; Fidel Liberal; Alejandro Muñoz; Cristina Perfecto

2004-01-01

457

Ad-Aware Free Internet Security 8.3.1  

NSDL National Science Digital Library

Many users may be familiar with the Ad-Aware application, and those who are will be glad to learn that this latest version installs a bit faster and that it now has a built-in scheduler for security scans. The application still features high-level anti-virus protection, a "quick-scan" setting, and a number of additional updates. This version is compatible with computers running Windows 2000 and newer.

458

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

ERIC Educational Resources Information Center

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…

Svetcov, Eric

2004-01-01

459

Computer viruses  

Microsoft Academic Search

Computer viruses have been around since the mid 1980s. Over 40,000 different viruses have been cataloged so far and the number of viruses is increasing dramatically. The damage they cause is estimated to be several billions of U.S. dollars per year. Most often, the origin of the virus is difficult to trace. Various kinds of anti-virus software have been developed

S. R. Subramanya; N. Lakshminarasimhan

2001-01-01

460

E. coli expressed proteins as diagnostic reagents for typing of foot-and-mouth disease virus  

Microsoft Academic Search

Summary.  ?Truncated proteins corresponding to the C-terminal half of VP1 of four vaccine strains and two field variants of foot-and-mouth\\u000a disease virus (FMDV) were expressed in E. coli. The expressed proteins were affinity purified and their type specific reactivity was confirmed by immunoprecipitation with\\u000a anti-virus antibodies. Antibodies were raised against the purified proteins in guinea pigs and the type specificity of

V. V. S. Suryanarayana; S. Viswanathan; G. Ratish; P. Bist; K. Prabhudas; M. R. Gajendragad; C. Natarajan

1999-01-01

461

Page 1 of 2 Radiogram No. 7851u Form 24 for 12/05/2011  

E-print Network

behind panel 139. 06:10-06:40 . Post-sleep 06:40-07:30 . BREAKFAST 07:30-08:00 . Work Prep 08 Exercise (CEVIS) 11:05-12:35 CDR Physical Exercise (ARED) 11:15-11:25 FE-1 comm assets switchover to a backup string 11:20-12:00 FE-2 Auxiliary Laptop Anti-Virus Update 11:25-12:55 FE-1 Physical Exercise

462

UNIVERSIDAD AUTNOMA DE MADRID ESCUELA POLITCNICA SUPERIOR  

E-print Network

sistema UWB sobre sistemas de telecomunicaciones con bandas de operación mayor de 3.1 GHz Sergio Cervera Irimia Abril 2009 #12;II #12;III Efecto del sistema UWB sobre sistemas de telecomunicaciones con bandas

Autonoma de Madrid, Universidad

463

UNIVERSIDAD AUTNOMA DE MADRID ESCUELA POLITCNICA SUPERIOR  

E-print Network

del sistema UWB sobre sistemas de telecomunicaciones móviles de segunda y tercera generación Sergio Rico Arias Septiembre 2007 #12;II #12;III Efecto del sistema UWB sobre sistemas de telecomunicaciones: Sergio Rico Arias Título: Efecto del sistema UWB sobre sistemas de telecomunicaciones móviles de segunda

Autonoma de Madrid, Universidad

464

UNIVERSIDAD AUTONOMA DE MADRID ESCUELA POLITECNICA SUPERIOR  

E-print Network

sistema UWB sobre sistemas de telecomunicaciones con bandas de operación por debajo de los 3 GHz Alicia Jiménez Tejero Octubre 2008 #12;II #12;III Efecto del sistema UWB sobre sistemas de telecomunicaciones con sistema UWB sobre sistemas de telecomunicaciones con bandas de operación por debajo de los 3 GHz Autora

Autonoma de Madrid, Universidad

465

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

Microsoft Academic Search

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

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

466

RED FUNCIONAL DE IMPLANTOLOGÍA. SU PAPEL EN EL SISTEMA DE EVALUACIÓN BIOLÓGICA PRECLÍNICA DE BIOMATERIALES Y EQUIPOS MÉDICOS IMPLANTABLES EN CUBA  

Microsoft Academic Search

The use of biomaterials and implantable medical devices is nowadays a key element of the health care system. These materials require, before being introduced in medical practice, a biological evaluation on scientific, ethical and regulatory basis. The safety and efficacy requirements are set in the Rules for Evaluation and Registry of Medical Device of the Public Health Ministry (MINSAP), as

M. Ríos; T. Ballenilla; J. Cepero; V. Rodríguez; R. Delgado; D. Carnesoltas; F. Vedado; G. Vedado

2002-01-01

467

Diseño e Implementación de un Sistema Web para la Gestión del Conocimiento para la Facultad de Ingeniería en Electricidad y Computación (FIEC)  

Microsoft Academic Search

SUMMARY: One of the fundamental purposes of the educational systems of this century, is to find the means that favor their quality, reason why our contribution to fulfill this purpose consists in the \\

Silvia Gavilanes Naranjo; Kelly Carvajal Cuji

468

DISEÑO E IMPLEMENTACIÓN DE UN SISTEMA DE OBSERVACIÓN AXIAL PARA UNA ANTORCHA DE PLASMA GENERADO POR ACOPLAMIENTO INDUCTIVO (ICP-AES)  

Microsoft Academic Search

ICP-AES use normally radial observation. However, radial observation presents some limitations that suggest the convenience of studing the axial observation. Radial observation gathers the spectroscopic signal of a limited volume perpendicularly to the central channel of the plasma flame. Axial observation gathers the spectroscopic signal along the central axis of the plasma flame. Up to date publications on axial observation

D. Padilla; J. Fonseca; E. Mejía; R. Cabanzo; O. Aya-Ramirez

469

DISEÑO DE UN SISTEMA PARA LA PLANEACIÓN DE LA PRODUCCIÓN Y ADMINISTRACIÓN DE INVENTARIO DE PRODUCTO TERMINADO EN UN AMBIENTE DE FABRICACIÓN PARA INVENTARIO  

Microsoft Academic Search

The present project is a design of a System for the Production Planning and Inventory Management applied to the glass manufacturing industry. The designed system is a Pull System with Fixed Reorder Points and Economic Lot Sizes considering a finite production rate. This New System was designed using real data during 8 months of activity of the factory. These data

Miguel Columbus Ponce; Juan Cajas Mendoza

2005-01-01

470

Uso de Sistemas Auto-organizados na Sntese de Materiais Auto-organizao uma das ferramentas mais versteis e mais poderosas para a  

E-print Network

manuseio de monocamadas de surfactantes foram desenvolvidas por Agnes Pockels em 1891. Irving Langmuir e filmes de Langmuir-Blodgett. O reconhecimento do potencial de filmes organizados como materiais avançados

Loh, Watson

471

Quality of service management efficient scheme for the universal mobile telecommunications system Esquema eficiente de administración de la calidad de servicio para el sistema de telecomunicaciones móviles universales  

Microsoft Academic Search

This research work proposes a new Radio Resource Management (RRM) scheme in or- der to accomplish the Quality of Service (QoS) management for the Universal Mobile Telecommunications System (UMTS). The solution is based on UMTS standardization and a performance evaluation is presented to demonstrate its efficiency.

E. Zaleta-Alejandre; C. F. García-Hernández; G. Cahue-Díaz; J. A. Pérez-Díaz; P. Sibaja-Terán; Desarrollo Tecnológico-CENIDET; Servicios a Computadoras-RISC

2008-01-01

472

Diseño y Desarrollo de un Modelo Experimental para la Auditoria de Sistemas de Gestión de Calidad Total de Empresas del Sector de Telecomunicaciones  

Microsoft Academic Search

Nowadays, the organizations are looking for the excellence with the objective to excel in their industrial sector, improvement their products, increase the satisfaction of their customers and have high incomes. This has promoted the implementation and management of quality systems in the organizations, especially in the telecommunications sector, which increases to high velocity, and where only the best ones achieve

Ana María; Zambrano Ibarra; Daniel Vicente Serdán Ruiz

473

MoViSys Um Sistema de Visualizao para Dispositivos Ana F. Vaz, Paulo P. de Matos, Ana Paula Afonso, Maria Beatriz Carmo  

E-print Network

Paula Afonso, Maria Beatriz Carmo Departamento de Informática, Faculdade de Ciências, Universidade de próprias para estes dispositivos. O tamanho reduzido do ecrã e os modos de interacção são as características que, entre outras, mais desafios colocam em termos de visualização e interacção na concepção deste

Carmo, Maria Beatriz

474

CORRECCIÓN DE LA ACIDEZ DEL SUELO CON CA Y MG Y SU EFECTO EN EL DESARROLLO DEL SISTEMA RADICAL DEL PALMITO EN LA ETAPA DE PREVIVERO1  

Microsoft Academic Search

Ameliorization of soil acidity with Ca and Mg on the development of peach palm root system at the pre-nursery growth stage. The effect of ameliorization of soil acidity with different sources of Ca and Mg on the initial development of the root system of peach palm was evaluated under nursery conditions. Soils classified as Andisol and Ultisol were used, as

Rafael E. Salas; Thomas J. Smyth; Danilo Alpízar; Jimmy Boniche; Alfredo Alvarado; Anthony Rivera; Nota Técnica

2002-01-01

475

Un sistema de cuentas para la valoración de los efectos comerciales y ambientales del gasto público en la mitigación del fuego en el bosque mediterráneo  

Microsoft Academic Search

A system of accounts for valuing commercial and environmental public spending effects on mitigation forest fires in Mediterranean areas This paper proposes an economic accounting system for measuring the commercial and environmental effects of public spending in mitigation of forest f ires in Mediterranean areas. It describes the application of this system (Agroforestry Accounts System) in the Alcornocales Natural Park.

P. Campos Palacín; J. L. Oviedo Pro; A. Caparrós Gass

476

M A T E R I A S O P T A T I V A S Ingeniera en Sistemas de Computacin Plan 2001  

E-print Network

PROGRAMACION DE SERVIDORES (Cod. 7908) Profesor: Diego C. Martínez Programación Orientada a Objetos (Cód. 5746 LENGUAJES PARA LA PROGRAMACION DE SERVIDORES (Cod. 7908) Profesor: Diego C. Martínez Tecnología de

Maguitman, Ana Gabriela

477

MODELO DE PROGRAMACION LINEAL PARA ASISTIR EN EL DISEÑO DE SISTEMAS DISTRIBUIDOS DE TRATAMIENTO DE EFLUENTES LINEAR PROGRAMMING MODEL TO ASSIST THE DESIGN OF DISTRIBUTED WASTEWATER TREATMENT SYSTEMS  

Microsoft Academic Search

One of the procedures available for the synthesis of distributed wastewater treatment networks is based on an extension of the concepts and methodology derived from heat recovery pinch technology. The minimum flowrate target and the design of a wastewater treatment subnetwork are obtained within the pinch technology methodology in a sequential manner in two different steps. In this paper a

J. M. Zamora-Mata; R. Hernández-Suárez; J. Castellanos-Fernández

2004-01-01

478

Evaluación del uso de las cartas de control X, EWMA y CUSUM en un sistema de control de calidad para procesos no correlacionados  

Microsoft Academic Search

Due to globalization and the present tendencies of the economy, the organizations have oriented their strategies to the improvement of the quality and to the reduction of the costs of manufacture. The present investigation looks for to detec the situa- tions outside control that can be displayed when a process is folloed and to make oriented decisions to improve the

Francisco Eljach; Gustavo Penagos; Rita Patricia; Peña-Baena Niebles

2006-01-01

479

PROPUESTA DE UN SISTEMA DE POLÍTICAS PARA EL PROCESO DE EVALUACIÓN DEL DESEMPEÑO. CASO DE ESTUDIO LA EMPRESA CONSTRUCTORA DE OBRAS DE ARQUITECTURA E INGENIERÍA NO. 1  

Microsoft Academic Search

La Evaluación del Desempeño constituye una técnica de dirección imprescindible en la actividad administrativa. Es un proceso dentro de la Dirección de Recursos Humanos (DRH) que permite encontrar problemas relacionados con la supervisión de personal, de integración del empleado a la empresa o al cargo y sobre todo es vital en el proceso de control.

Maidelyn Díaz Pérez; Rosaelys Cruz Cañet; Soleidy Rivero Amador; Yimian de Lyz Contreras Díaz

2009-01-01

480

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

ERIC Educational Resources Information Center

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

Arredondo, C.; And Others

481

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

Microsoft Academic Search

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

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

482

PLANEJAMENTO DE UM SISTEMA INTEGRADO DE GESTÃO APLICADO EM USINAS DE CANA-DE-AÇÚCAR (PLANNING OF A INTEGRATED MANAGEMENT SYSTEM TO SUGAR CANE PLANTS)  

Microsoft Academic Search

To optimize the activities, services and products of a Sugar Cane Plant, the promising activity for Brazil's interior developmen t, reducing losses, adding value to the final product and minimizing risks, through a planning of an Integrated Management System (IMS) which integrates Quality, Environment, Health and Occupational Safety. The article encloses the planning of an IMS, giving basic emphasis to

Nelson Siqueira Neto; Antônio Pasqualetto

483

ATRIBUTOS DO SOLO SOB P ASTAGENS EM SISTEMA DE SEQUEIRO E IRRIGADO Soil attributes under pasture system with and without irrigation  

Microsoft Academic Search

2 cada. Adotou-se o delineamento em blocos completamente casualisados, referindo-se aos quatro tratamentos: capim-Tanzânia e braquiarão com e sem irrigação, com quatro repetições. Foram realizadas análises de atributos físicos (estabilidade de agregados) e químicas (pH, cálcio, magnésio, potássio, fósforo, acidez potencial, capacidade de troca catiônica, saturação por bases e conteúdo de matéria orgânica). Os atributos químicos variaram em ambas as

Ana Lúcia Pereira; Milton César; Costa Campos; Zigomar Menezes de Souza; Ítalo Heberte; Lucena Cavalcante; Vagner Alves da Silva; Marcílio Vieira; Martins Filho

484

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

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.…

Consejo Nacional Tecnico de la Educacion (Mexico).

485

El colapso del sistema de emisión, depósitos y descuentos en la Argentina. El caso del Banco de la Provincia de Buenos Aires (1887-1891)  

Microsoft Academic Search

The reasons for the external debts and the financial crack in Argentina in 1890 have been thoroughly analized. However,i t has not been the same with the shock that this phenomenon has caused in the banking structure. The purpose of this essay is to answer the enquires referred to the theory and risky factors of credit portfolio, examining the issue

Gerardo Marcelo Martí

1998-01-01

486

A COMPUTAÇÃO DO FLUXO ÓPTICO EM IMAGENS OBTIDAS POR UM SISTEMA MÓVEL DE MAPEAMENTO TERRESTRE Optical flow computation for land-based mobile mapping system images  

Microsoft Academic Search

The positioning of a land-based mobile mapping system (LBMMS) is obtained by the GPS signal processing. However, buildings and trees, for instance, can cause obstruction to the GPS signal reception, while the vehicle travels along a road. There are mobile systems that have inertial sensors integrated with GPS receivers to orient the road images. Such integration can not control the

Ricardo Luís Barbosa

487

SISTEMAS DE PRODUÇÃO DE FEIJÃO INTERCALADO COM CAFEEIRO ADENSADO RECÉM-PLANT ADO Production systems for bean associated with recently planted dense coffee shrub cropping  

Microsoft Academic Search

-1 de P2O5 e 20 kg ha -1 de K2O no plantio mais 30 kg ha -1 de N em cobertura), mais um tratamento adicional (o monocultivo do cafeeiro ou do feijoeiro). O experimento foi conduzido em lavoura comercial da cv. Catucaí recém-plantada e a cv. de feijoeiro foi a BRS-MG-Talismã. No feijoeiro foram avaliados os estandes inicial e final,

Abner José de Carvalho; Messias José Bastos de Andrade; Rubens José Guimarães

488

Comparación del citómetro UF100i con el sistema Kova y el método convencional para el conteo de leucocitos y eritrocitos en orina  

Microsoft Academic Search

Background: Usually, the microscopic analysis of urine sediment is performed manually, by a conventional or standardized method, but it is a tiring, intensive and imprecise procedure. The Sysmex UF-100i is an auto- mated analyzer that performs a microscopic urinalysis by flow cytometry. Objectives: To determinate the preci- sion of UF-100i using urine commercial controls, dif- ferent controls from the ones

Verónica Gómez-Gaviño; Carolina Jiménez-López; Norma P. Vivar-Guzmán

2008-01-01

489

Un sistema casi ideal de demanda para el gasto en Colombia: Una estimación utilizando el método generalizado de los momentos en el período 1968-2007  

Microsoft Academic Search

El presente trabajo utiliza una Aproximación Lineal del Modelo Casi Ideal de Demanda (Linear Approximation\\/Almost Ideal Demand System) para examinar los gastos de los colombianos en la canasta básica, y estimar sus respectivas elasticidades precio y gasto, a partir de datos de series de tiempo para Colombia en el período de 1968-2007. Las elasticidades gasto y precio, compensadas y no

Daniel Londoño Cano; Edwar Londoño Zapata; Andrés Ramirez Hassan

2011-01-01

490

Innovaciones de sistema y gestión de la transición en Austria: el caso de los compuestos de madera y plástico y los biopolímeros  

Microsoft Academic Search

Austria is at the forefront of Europe in terms of innovation in the use of renewable resources for energy supplies. In recent years Austria has also sought to use renewables resources as widely as possible in product manufacturing, though for the moment their adoption is still limited. This paper presents transition field analysis and puts it to the test through

Matthias Weber; Klaus Kubeczko; Karl-Heinz Leitner

2010-01-01

491

Validaci'on experimental de estrategias de reducci'on del consumo de sensores inal'ambricos en sistemas de control en red  

Microsoft Academic Search

En este trabajo se describe una red inalámbrica experimental que se ha desarrollado para la prueba de algoritmos de control. La plataforma dispone de tres nodos; el controlador, el sensor y el actuador. Cada nodo utiliza un microcontrolador en el que se puede implementar diferentes algoritmos de control. La comunicación se basa en una red inalámbrica de área personal de

Ignacio Peñarrocha; Adrian Dinu; Roberto Sanchis

2013-01-01

492

Articulación de miradas para una aproximación a la inclusión social de adolescentes infractores de ley. Teorías de redes sociales y de sistemas sociales  

Microsoft Academic Search

The Chilean legislation attempts to reconcile apparently conflicting objectives for adolescent prison population: the sanction of criminal acts and the protection of his rights of the adolescents. Discussed in this document the difficulties that this process presents a public policy in a complex society characterized by the functional differentiation of systems, mass exclusion and individualisation of the construction of personal

Enzo Zamorano Brugueras

493

Compito Comunicazioni Radiomobili: 27 Luglio Si consideri la connessione uplink di un sistema radiomobile con accesso multiplo al canale a divisione  

E-print Network

ogni utente trasmetta con potenza Ptx = 0.25 W, che le perdite nel canale siano uguali per tutti gli calcoli la potenza in trasmissione necessaria affinche' ogni utente raggiunga un Eb/I0 pari a 8 dB nell - P (i) rx + N0W × G(i) #12;2 dove Itot = M j=1 P (j) rx e' la potenza totale ricevuta dalla stazione

Abrardo, Andrea

494

A luta dos anarquistas contra o sistema penal e a emergência da ação global de associações que compõem a Cruz Negra Anarquista (CNA)  

Microsoft Academic Search

The prison, this recent creation, is thought by the existence of several anarchists associations- Anarchist Black Cross- which dedicates themselves for the struggle against penal system. The urgency in thinking prisons in a way that to privilege liberty, finds in anarchists brave partners. Those, during the search for uthopical free society, generate freedom experiences that rocks the sorrowed logic of

Acácio Augusto; Michel Foucault

495

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

ERIC Educational Resources Information Center

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

Migrant Clinicians Network, Inc., Austin, TX.

496

Estudio de supervivencia de tres sistemas de ataches extracoronarios utilizados en prótesis mixta Survival study of three systems of extracoronary attachments used in mixed prostheses  

Microsoft Academic Search

Introduction: The objective is to determine the clinical behaviour and survival of three systems of extra coronary attachments: Roach, MiniDalbo and MiniSG. Material and method: A retrospective study was performed on clinical histories of patients who had been treated with mixed prostheses using the attachments mentioned, at least 48 months prior to the study. Cli- nical aspects which might influence

Ma Iciar; Fernando Sabras-Puras; San Martín-Martínez; J. Antonio; Jaime Gil-Lozano

497

SISTEMA DE VISIÓN ARTIFICIAL PARA ASISTIR LA CONDUCCIÓN DE UNA SILLA DE RUEDAS ARTIFICIAL VISION SYSTEM TO GUIDE THE MOVEMENT OF A WHEEL CHAIR  

Microsoft Academic Search

This document is the development of an algorithm of detection of doors from images taken with one webcam, with the purpose of obtaining excellent data that it allows to guide a wheel chair whose object is the attendance in the conduction to incapacitated children

César Augusto; Peña Cortés

498

REAL-TIME WORKSHOP EN LA INVESTIGACIÓN : IMPLEMENTACIÓN DE DIVERSOS CONTROLADORES SOBRE UN SISTEMA SISO NO LINEAL Y SOBRE UN ROBOT MÓVIL CON VISIÓN ARTIFICIAL  

Microsoft Academic Search

Resumen En este artículo se muestra el trabajo que se está realizando en nuestra universidad en relación a Real-Time Workshop. Con el objetivo de disponer de un entorno que permita completar el proceso de análisis, diseño y implementación, se han desarrollado drivers específicos para tarjetas de adquisición de datos así como para permitir el acceso al puerto de comunicación serie

A. Oller; C. Pous; S. Esteva; J. Ll

499

Transmitancia acústica para un sistema multicapas con un perfil del Triángulo de Pascal Acoustical transmitance for multilayer system with Pascal's Triangle character  

Microsoft Academic Search

We calculate the acoustical transmittance, for normal incidence, as a function of the waves frequency, for a multilayer structure made of bilayers, where one layer is glass and the other is water. The width of the glass layer is modulated by a quasi-periodical numerical sequence taken from the Pascal's Triangle. This sequence is formed by quantity of odd numbers in

R. A. Reyes Villagrana; J. Madrigal Melchor; D. A. Contreras Solorio

500

Proposta de um Sistema Integral de Informações Gerenciais (SIIG): aplicado numa indústria de alimentos Proposition of a Management Information Integral System (MIIS): applied in a food industry  

Microsoft Academic Search

This article aims to present the conceptual base of the management information integral system (MIIS), devel- oped according to the integral monetary correction methodology, the resources of information technology (IT) and the structure of the accounting information system. The MIIS uses as internal source the hierarchic data base and as external one the IGP-DI\\/FGV-RJ. The MIIS also utilizes the following

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