These are representative sample records from Science.gov related to your search topic.
For comprehensive and current results, perform a real-time search at Science.gov.
1

MAEB 2012 Albacete, 8-10 de Febrero de 2012 Tecnicas de pruebas automaticas para  

E-print Network

. Para demostar el uso estas estrategias, se aplican a un algoritmo gen´etico estacionario, comprobando c algoritmo gen´etico con codificaci´on real [11], aun- que el enfoque planteado puede extenderse a otros AEsMAEB 2012 Albacete, 8-10 de Febrero de 2012 T´ecnicas de pruebas autom´aticas para algoritmos

Granada, Universidad de

2

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO eCT - Biblioteca de Comercio Electronico No contexto das areas de comercio electronico e sistemas de gest~ao de conteudo (CMS), analisam-se varias extens~oes de comercio electronico para CMS, com o objectivo de identi- ficar as suas caracter

da Silva, Alberto Rodrigues

3

UNIVERSIDAD TECNICA FEDERICO SANTA MARIA DEPARTAMENTO DE ELECTRICIDAD  

E-print Network

UNIVERSIDAD TECNICA FEDERICO SANTA MARIA DEPARTAMENTO DE ELECTRICIDAD PROGRAMACION DE LA GENERACION DEPARTAMENTO DE ELECTRICIDAD PROGRAMACION DE LA GENERACION DE CORTO PLAZO EN SISTEMAS HIDROTERMICOS USANDO

Catholic University of Chile (Universidad Católica de Chile)

4

Faculty Activity Analysis in the Universidad Tecnica Del Estado Campuses.  

ERIC Educational Resources Information Center

An analysis of academic activities of college faculty at the eight campuses of Chile's Universidad Tecnica del Estado was conducted. Activities were grouped into seven categories: direct teaching, indirect teaching, research, community services, faculty development, academic administration, and other activities. Following the narrative

Karadima, Oscar

5

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

, provavelmente, mais fortemente influenciou a minha maneira de ser. A Ana ensinou-me que o racionalismo mais bem^encia e Tecnologia, que financiou o meu Doutoramento, e `a Funda¸c~ao Luso-Americana para o

Instituto de Sistemas e Robotica

6

Uso del conocimiento de la arquitectura Fermi para mejorar el rendimiento en aplicaciones  

E-print Network

Uso del conocimiento de la arquitectura Fermi para mejorar el rendimiento en aplicaciones CUDA Yuri arquitectura Fermi de NVIDIA introduce nuevos criterios a la hora de selec- cionar los tama~nos y la geometr arquitectura para aplicar adecua- damente tecnicas de optimizacion de codigo. Fermi [2] [3] [4] es la

Llanos, Diego R.

7

Algoritmos Basados en Nubes de Particulas y Evolucion Diferencial para el Problema de  

E-print Network

Algoritmos Basados en Nubes de Particulas y Evolucion Diferencial para el Problema de Optimizaci con variables reales pode- mos destacar a los algoritmos basados en nubes de particulas y evoluci propuestas en la literatura. Este estu- dio permite analizar las distintas tecnicas en funcion de sus

Granada, Universidad de

8

Strategic Planning for Institutions of Higher Education: A Content Analysis for the Universidad Tecnica del Estado Planning System.  

ERIC Educational Resources Information Center

Ten-year development plans of each of the eight campuses of the Universidad de Santiago de Chile, formerly called Universidad Tecnica del Estado, are evaluated, using content analysis. In addition to narrative descriptions, diagrams illustrate the features of each plan, which covers the period 1983-1993. Topics covered by the plans were grouped

Karadima, Oscar

9

TECNICAS DE PRECONDICIONAMIENTO DE LOS METODOS DE KRYLOV PARA LA DISCRETIZACION DEL PROBLEMA STOKES  

E-print Network

@kuaimare.ciens.ucv.ve Centro de Calculo Cientifico y Tecnologico (CCCT). Facultad de Ciencias. Universidad Central deomputo Cientifico (CEMVICC). Facultad Experimental de Ciencias y Tecnologia. Universidad de Carabobo, Valencia-Venezuela. Lopez, Hilda. hlopez@kuaimare.ciens.ucv.ve Molina, Brigida. bmolina

Raydan, Marcos

10

Nuevas tecnicas basadas en redes neuronales para el diseno de filtros de microondas multicapa apantallados  

NASA Astrophysics Data System (ADS)

In this PhD thesis one method of shielded multilayer circuit neural network based analysis has been developed. One of the most successful analysis procedures of these kind of structures is the Integral Equation technique (IE) solved by the Method of Moments (MoM). In order to solve the IE, in the version which uses the media relevant potentials, it is necessary to have a formulation of the Green's functions associated to the mentioned potentials. The main computational burden in the IE resolution lies on the numerical evaluation of the Green's functions. In this work, the circuit analysis has been drastically accelerated thanks to the approximation of the Green's functions by means of neural networks. Once trained, the neural networks substitute the Green's functions in the IE. Two different types of neural networks have been used: the Radial basis function neural networks (RBFNN) and the Chebyshev neural networks. Thanks mainly to two distinct operations the correct approximation of the Green's functions has been possible. On the one hand, a very effective input space division has been developed. On the other hand, the elimination of the singularity makes feasible the approximation of slow variation functions. Two different singularity elimination strategies have been developed. The first one is based on the multiplication by the source-observation points distance (rho). The second one outperforms the first one. It consists of the extraction of two layers of spatial images from the whole summation of images. With regard to the Chebyshev neural networks, the OLS training algorithm has been applied in a novel fashion. This method allows the optimum design in this kind of neural networks. In this way, the performance of these neural networks outperforms greatly the RBFNNs one. In both networks, the time gain reached makes the neural method profitable. The time invested in the input space division and in the neural training is negligible with only few circuit analysis. To show, in a practical way, the ability of the neural based analysis method, two new design procedures have been developed. The first method uses the Genetic Algorithms to optimize an initial filter which does not fulfill the established specifications. A new fitness function, specially well suited to design filters, has been defined in order to assure the correct convergence of the optimization process. This new function measures the fulfillment of the specifications and it also prevents the appearance of the premature convergence problem. The second method is found on the approximation, by means of neural networks, of the relations between the electrical parameters, which defined the circuit response, and the physical dimensions that synthesize the aforementioned parameters. The neural networks trained with these data can be used in the design of many circuits in a given structure. Both methods had been show their ability in the design of practical filters.

Pascual Garcia, Juan

11

Tecnicas avanzadas de medida en intensimetria acustica para la caracterizacion de materiales aislantes  

NASA Astrophysics Data System (ADS)

The measurement rate of acoustic reduction (R) in an insulating material is determined in special designed enclosures according to UNE EN ISO 140-1 standard. The construction of a testing room that complies with the standards requires a significant financial investment, that too often can not be provided by general machinery manufacturers. The outdoor machines have to be designed considering the noise emission limits established in the European Directive 2000/14, making the installment of insulating materials in enclosures of machines necessary. Suppliers of insulating materials for industrial use does not normally provide the insulating properties of their products, which are often obtained from rock wool, polyethylene, polyurethane, synthetic rubber, etc. It is difficult to test these materials that are characterized by low density surface in a room standardized test procedure that is based on the measurement of sound pressure. The main problem is getting the validation of the measurement when the rate of acoustic reduction is relatively low, as in the case of materials mentioned above. An alternative procedure is proposed in this Doctoral Thesis based on the measurement of sound intensity. The vector nature of this parameter allows just the flow of energy through a given surface to be measured. The validation of the measurement is achieved with the highest degree of accuracy by applying the criteria included in the standard UNE EN ISO 9614. A steel plate 6 mm thick incorporated with a sound source for amplification of a pink noise signal is designed for carrying out the tests. Faced with the source is placed a piece of material to test. The source is connected and the transmitted sound intensity is measured with a probe consisting of two microphones located opposite one another. Previously it has been determined the flow of acoustic energy that impinges on the piece. The difference between the two measures provides directly the rate of acoustic reduction. The main advantage of the described test procedure is that it can be done in a room with normal dimensions and without specific conditioning. The vibroacoustic behaviour of the testing box and its influence on the measures is another important aspect to be considered. A test of modal analysis has been carried out with a steel plate similar to the enclosures of the box. A mathematical model based on the Statistical Energy Analysis SEA has been developed to estimate the paths of energy transmission from the sound source to the point of measurement with the sound intensity probe. The commercial software AUTOSEA2 LT is used. General conclusions regarding the alternative method of measurement and specific ones related to the capacity of insulation of the tested materials have been obtained. As for the general conclusions, the limitations of measuring with the intensity probe at low and high frequencies have been proved, validating measurements with an accuracy of 0.5 dB according to the criteria set forth in the standard UNE EN ISO 9614 Part 3 have been obtained, and a new test procedure for easy determination of the rate of acoustic reduction of an insulating material with low density surface has been established. Finally, the devised procedure allows future developments in the field of vibroacoustics, such as the application of the principle of reciprocity and the determination of acoustic impedance of materials by application of techniques for measuring of acoustics intensity.

Munuera Saura, Gregorio

12

EVALUACION DE TECNICAS BASADAS EN CONOCIMIENTO PARA EL DISEO DE CONTROLES DE EXCITACION EN  

E-print Network

que han alcanzado los sistemas eléctricos de potencia, debido al aumento de interconexiones, al uso de (Anderson y Fouad, 1993; Kundur, 1994). En las últimas dos décadas se ha desarrollado un número considerable utilizando las teorías de control óptimo en H y control proyectivo subóptimo (Morales, 1993). En todos los

Catholic University of Chile (Universidad Católica de Chile)

13

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

14

Rastreamento de Multiplas Larvas utilizando Tecnicas de Vis~ao Computacional: Resultados Preliminares  

E-print Network

Preliminares Jaime Henrique Ferreira de S´a Queiroz e Hemerson Pistori INOVISAO UCDB Campo Grande, Brasil, MS Biotecnologia UCDB Campo Grande, Brasil, MS portokra@ucdb.br,arroel@ucdb.br Resumo--Este artigo apresenta os resultados preliminares de um experimento com filtros de part´iculas para rastreamento de m´ultiplas larvas

Lewiner, Thomas (Thomas Lewiner)

15

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

16

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

17

Aplicacion de nuevas tecnicas y procedimientos para la ensenanza de la lectura-escritura (Application of the New Techniques and Procedures for Teaching Reading-Writing).  

ERIC Educational Resources Information Center

This document is an English-language abstract (approximately 1,500 words) of experiments performed in Mexico, D. F. by way of introducing new techniques for teaching reading and writing, particularly in the remedial classes. The first part of the document deals with a series of experiments carried out with first grade remedial groups as follows:

Instituto Nacional de Pedagogia (Mexico).

18

(DOCFRADIS 1201) Estrategia publicitaria del minorista en las redes sociales. Factores que motivan las compras en la web 2.0  

Microsoft Academic Search

El uso de las redes sociales, como estrategia publicitaria del minorista, favorece la comunicacin interactiva de la marca y sus productos y motiva las compras, en la web 2.0, producindose una revolucin en el paradigma estimulo-respuesta del siglo XXI. El trabajo analiza la potencialidad de la interactividad como estrategia de marca en las redes sociales e identifica los factores clave

Ines Kster Boluda; Natalia Vila Lpez; Asuncin Hernndez Fernndez

2012-01-01

19

Desarrollo de un instrumento para medir percepciones sobre el contexto de construccion del conocimiento cientifico de estudiantes universitarios de nuevo ingreso  

NASA Astrophysics Data System (ADS)

En esta investigacion, se desarrollo un instrumento que permite medir percepciones relacionadas al contexto de constriccion del conocimiento cientifico. Se examinaron instrumentos existentes y se encontro que el VOSTS (Views on science, technology, and society), instrumento desarrollado empiricamente en Canada por Aikenhead, Ryan y Fleming, podia traducirse y validarse en el contexto cultural puertorriqueno. El instrumento es extenso, consta de 113 reactivos, cada uno con una premisa basica relacionada a la tematica ciencia, tecnologia y sociedad y un numero de alternativas relacionadas a la premisa que oscila entre siete y trece. Se delimito su utilizacion a los quince reactivos identificados por los autores como relacionados a la construccion social del conocimiento cientifico. Metodologicamente, se procedio a utilizar el modelo de adaptacion intercultural, que permite que el instrumento desarrollado satisfaga las dimensiones de equivalencia semantica, de contenido, tecnica, de criterio y conceptual, atemperado asi al instrumento original. Se cumplio con este proposito mediante la traduccion de la version original en ingles al espanol y viceversa. Se utilizaron comites para examinar la traduccion y la retro-traduccion del instrumento. Se realizo una prueba piloto con estudiantes universitarios de nuevo ingreso, utilizando el instrumento traducido para asegurar su intelegibilidad. La confiabilidad del instrumento se determino mediante la intervencion de un panel de expertos quienes clasificaron las distintas posiciones dentro de cada reactivo en: realista, con merito e ingenua; se transformaron estas opciones en valores numericos lo que permitio establecer una escala Likert para cada una. Se suministro el instrumento a una muestra de estudiantes universitarios de nuevo ingreso con caracteristicas similares a las de la poblacion puertorriquena en cuanto a ejecucion en las pruebas de aptitud verbal y matematica del College Board. Los resultados de sus contestaciones fueron transformados numericamente para poder obtener el coeficiente de correlacion de Spearman-Brown para el instrumento (0.661, p < 0.01). El analisis de las contestaciones de los estudiantes refleja percepciones diversas y, en algunos casos, contradictorias con respecto al contexto de construccion del conocimiento cientifico.

Garcia-Ramirez, Jaime Antonio

20

Grupo de Trabajo Para la Preparacion del Proyecto Sobre el Desarrolo de Servicias de Bibliotecas y de Informacion Cientifica y Tecnica (Working Group for the Preparation of the Proposal on the Development of Library Services and Scientific and Technical Information).  

ERIC Educational Resources Information Center

The Office of Iberoamerican Education, an intergovernmental body based on educational and cultural cooperation for the purpose of disseminating information, documentation, advice, and assistance in the field of education, co-sponsors (with UNESCO) the work represented in this study of library and information planning and facilities in the Andean

Oficina de Educacion Iberoamericana, Madrid (Spain).

21

ParaSITE  

E-print Network

paraSITE proposes the appropriation of exterior ventilation systems on existing architecture to inflate pneumatic shelters that are designed for homeless people. This project involves the production of a series of inflatable ...

Rakowitz, Michael

1998-01-01

22

TESIS DOCTORAL NEGACION CONSTRUCTIVA PARA  

E-print Network

TESIS DOCTORAL NEGACION CONSTRUCTIVA PARA PROGRAMACION LOGICA-ECUACIONAL Memoria presentada por Mar CONSTRUCTIVA PARA PROGRAMACION LOGICA-ECUACIONAL Tesis Doctoral en Inform#19;atica presentada por Mar#19;#16;a

Alpuente, María

23

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

SPECT, PET and CT imaging Molecular imaging Theoretical and psychophysical investigations of image metrology with maximum-likelihood methods Electron imaging Stem cells Digital radiology and telemedicine

Instituto de Sistemas e Robotica

24

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

´atica Aplicada Orientador: Doutor Jos´e F´elix Gomes da Costa Provas conclu´idas em: Resumo: Pretende-se analisar and Recursive Functions Over the Reals Daniel da Silva Gra¸ca MSc thesis (submitted) July 2002 #12;#12;O Computador Anal´ogico e Fun¸c~oes Reais Recursivas Nome: Daniel da Silva Gra¸ca Curso de Mestrado em: Matem

Lisboa, Universidade Técnica de

25

Redes inalambricas y robotica movil: tecnicas geograficas  

Microsoft Academic Search

En los ultimos anos ha surgido un creciente interes por los equipos multi-robot y las comunicaciones inalambricas. Varios robots pueden realizar un con- junto de tareas de forma mas eficiente que un solo robot, ademas de ofrecer nuevas posibilidades de uso mas alla de las capacidades de un robot en soli- tario. Es frecuentemente necesario o conveniente que los

Alejandro R. Mosteo Chagoyen; Jose L. Villarroel Salcedo

26

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

;#12;Resumo Muitas tarefas em robotica podem bene ciar perceptualmente do seguimento de alvos moveis no espaco genericos. Apresenta-se a implementac~ao do sistema projectado numa cabeca robotica de vis~ao activa~ao utilizadas no controlo dos movimentos de seguimento. Palavras Chave: vis~ao robotica, percepc~ao, sistemas

Instituto de Sistemas e Robotica

27

Universidade Tecnica de Lishoa Investiga~ao  

E-print Network

a partir de quatro escolas ja existentes: a Escola Superior de Medicina Veterinaria (a ac tual Faculdade tor experimental de fusao em que participa todo 0 mundo Ocidental) e outros que cruzam a tecnologia '".... '"~ tricidade - e e, desde ja, «0primeiroexemploda globalizacao da ciencia e da tecnologia», atesta Carlos

28

AYUDA PARA INVIDENTES UTILIZANDO TELEFONOS  

E-print Network

´on, aplicaci´on para m´oviles, c´odigo, base de da- tos,dpi (puntos por pulgada, dots per inch),layout,GPS. III la UAM. #12;Resumen Resumen El proyecto desarrolla aplicaciones para ayuda a invidentes utlizando tel´efonos inteligentes. La aplicaci´on principal est´a desarrollada para aparatos Android. Tiene como objetivo ayudar

Autonoma de Madrid, Universidad

29

"Estudio tribologico de aceros para moldes. Aplicacion al moldeo por inyeccion de polibutilentereftalato reforzado con fibra de vidrio"  

NASA Astrophysics Data System (ADS)

Mould materials for injection moulding of polymers and polymer-matrix composites represent a relevant industrial economic sector due to the large quantity of pieces and components processed. The material selection for mould manufacturing, its composition and heat treatment, the hardening procedures and machining and finishing processes determine the service performance and life of the mould. In the first part of the present study, the relationship between the hardness and microstructure and the wear resistance of mould steels from large blocks has been studied by pin-on-disc tests, studying the main wear mechanisms. In order to determine the surface damage on mould steels under real injection conditions, different commercial steels have been studied by measuring the variation of surface roughness with the number of injected pieces with different reinforcement percentages and different mould geometries, by using optical profilometry and scanning electron microscopy techniques. It was important to determine the variation of surface roughness of the moulded pieces with the number of injection operations. The materials used were polybutyleneterephthalate pure and reinforced with either 20% or 50% glass fibre. For the different mould designs, the evolution of the glass fibre orientation with injection flow has been determined by image analysis and related to roughness changes and surface damage, both of the composite parts and of the mould steel surface. Finally, the abrasion resistance of the composite parts has been studied by scratch tests as a function of the number of injected parts and of the scratch direction with respect to injection flow and glass fibre orientation. Los materiales para moldes de inyeccion de polimeros y materiales compuestos representan un sector economicamente muy relevante debido al gran aumento del numero de componentes fabricados a partir de materiales polimericos obtenidos mediante moldeo por inyeccion. La seleccion del material para la fabricacion del molde, tienen una gran influencia sobre su comportamiento en servicio a lo largo de la vida util del molde. En la primera parte del presente estudio, a partir de ensayos punzon sobre disco, se ha determinado la relacion entre la resistencia al desgaste y la dureza de aceros para moldes obtenidos a partir de bloques de gran espesor, estudiando los principales mecanismos de desgaste que tienen lugar. A continuacion, con el fin de determinar el dano superficial que sufren los aceros para moldes en condiciones reales de inyeccion, se han estudiado distintos tipos de aceros utilizados comercialmente en moldes de inyeccion de polimeros y materiales compuestos, seleccionando las condiciones de operacion para determinar la variacion de la rugosidad superficial del acero en funcion del material inyectado, del numero de operaciones sucesivas de inyeccion y de la orientacion del flujo de inyeccion, mediante tecnicas de perfilometria optica y microscopia electronica de barrido. Ademas del dano superficial sufrido por el acero con el numero de piezas inyectadas, tambien se ha determinado la evolucion de la rugosidad superficial de los materiales inyectados, polibutilentereftalato (PBT) puro y materiales compuestos derivados de PBT por adicion de un 20 o un 50% en peso de fibra de vidrio. En el caso de las piezas inyectadas, se ha caracterizado su microestructura en funcion del flujo de inyeccion y de la densidad de fibra, se han determinado sus propiedades termicas y dinamico-mecanicas, asi como la variacion de la rugosidad superficial de las piezas inyectadas con el numero de operaciones de inyeccion y con la geometria de las distintas secciones de las piezas. Finalmente, se ha evaluado la resistencia a la abrasion de PBT reforzado con un 50% de fibra, en funcion del numero de piezas inyectadas y de la direccion de rayado con respecto a la orientacion del flujo de inyeccion.

Martinez Mateo, Isidoro Jose

30

Tomografa computarizada (TC) y exploraciones para cncer  

Cancer.gov

Hoja informativa que describe el procedimiento y la tecnologa de exploraciones con tomografa computarizada as como sus usos para el diagnstico, para exmenes de deteccin y para tratamiento del cncer.

31

Pruebas genticas para sndromes hereditarios de cncer  

Cancer.gov

Hoja informativa sobre pruebas genticas para riesgos heredados de cncer; incluye tipos de pruebas, para quin estn indicadas y explicacin y confidencialidad de los resultados. Ofrece informacin de pruebas genticas a domicilio o pruebas para el consumidor.

32

Separating para and ortho water.  

PubMed

Water exists as two nuclear-spin isomers, para and ortho, determined by the overall spin of its two hydrogen nuclei. For isolated water molecules, the conversion between these isomers is forbidden and they act as different molecular species. Yet, these species are not readily separated, and no pure para sample has been produced. Accordingly, little is known about their specific physical and chemical properties, conversion mechanisms, or interactions. The production of isolated samples of both spin isomers is demonstrated in pure beams of para and ortho water in their respective absolute ground state. These single-quantum-state samples are ideal targets for unraveling spin-conversion mechanisms, for precision spectroscopy and fundamental symmetry-breaking studies, and for spin-enhanced applications, for example laboratory astrophysics and astrochemistry or hypersensitized NMR experiments. PMID:25196938

Horke, Daniel A; Chang, Yuan-Pin; D?ugo??cki, Karol; Kpper, Jochen

2014-10-27

33

SEGURIDAD ENERGETICASEGURIDAD ENERGETICA UN DESAFIO PARA CHILEUN DESAFIO PARA CHILE  

E-print Network

Universidad Catlica de Chile Departamento de Ingeniera Elctrica Hugh Rudnick 24 Noviembre 2006 #12;2 Tabla Producto Geogrfico Bruto versus Consumo Energtico (Fuente: CNE y Banco Central) Desarrollo econmico y con petrleo a EEUU en relacin a Israel el ao 1970 Venezuela utilizando energa para influir en

Catholic University of Chile (Universidad Catlica de Chile)

34

Compatibilidad con audfonos para sordos  

E-print Network

Compatibilidad con audfonos para sordos Hearing Aid Compatibility Q&A Q. What does hearing aid the different features of the phone thoroughly and in different locations, using your hearing aid or cochlear implant, to determine if you hear any interfering noise. Consult a sales representative about phone return

Greenberg, Albert

35

Prmio para trs novas aplicaes  

E-print Network

Prémio para três novas aplicações Tecnologia. A "wiride" venceu o "Lisbon Big Apps", concurso de Instituto Superior Técnico que desenvolveu o projeto, citada pelo/dAT, a "wiride" é uma nova forma de andar

Instituto de Sistemas e Robotica

36

Estudios ALCHEMIST para el cncer de pulmn  

Cancer.gov

Conjunto de informacin sobre los estudios ALCHEMIST para el cncer de pulmn, los cuales examinarn los tejidos de tumores de pacientes con cncer de pulmn en estadio inicial para detectar mutaciones genticas en genes EGFR y ALK.

37

Presidncia da Repblica Subchefia para Assuntos Jurdicos  

E-print Network

credenciamento e recredenciamento de instituies de educao superior; II - homologar os instrumentos de necessrias; III - propor ao CNE diretrizes para a elaborao, pelo INEP, dos instrumentos de avaliao para credenciamento de instituies; IV - estabelecer diretrizes para a elaborao, pelo INEP, dos instrumentos de

Paran, Universidade Federal do

38

Tutorial para rellenar el formulario de expediente de personal y cargos TUTORIAL PARA RELLENAR EL  

E-print Network

Tutorial para rellenar el formulario de expediente de personal y cargos TUTORIAL PARA RELLENAR EL EXPEDIENTE ESPACIAL DE PERSONAS Y CARGOS Objetivo del tutorial: Explicar paso a paso el procedimiento para ubicadas. En este tutorial aprender a: Seleccionar mapas de los edificios para imprimir Comprobar los

Escolano, Francisco

39

Fundo Global para o Meio Ambiente  

E-print Network

#12;#12;Fundo Global para o Meio Ambiente Global Environment Facility Avaliao dos Recursos de Climticos Center for Weather Forecasts and Climate Studies Programa das Naes Unidas para o Meio Ambiente Fernando Ramos Martins Samuel Luna de Abreu Ricardo Rther Realizao Diviso de Clima e Meio Ambiente

40

Ciudades inteligentes: beneficios para la inclusin social  

E-print Network

Ciudades inteligentes: beneficios para la inclusin social http://www.iuii.ua.es/CatedraTelefonicaUA/smart-cities Universidad de Alicante Inscripcin gratuita a travs del formulario http://www.iuii.ua.es/smart-cities trasladar los conceptos de Smart City al mbito de la Universidad para lograr el objetivo de mejora de la

Escolano, Francisco

41

UNIVERSIDAD DE GRANADA ESCUELA TECNICA SUPERIOR DE INGENIERIAS  

E-print Network

to everything I do. Thanks also to my family. This work has been funded by programs TIC-2003-01504 and TEC2006/13845/TCM from the Spanish Ministerio de Educacion y Ciencia. xi #12;#12;Summary In the modern world

Granada, Universidad de

42

Departamento de Matematica, Universidad Tecnica Federico Santa Maria  

E-print Network

diferenciable excepto en el origen) en una funci´on g(r). Comprobar las siguientes f´ormulas: f(r cos , r sin ecuaci´on de Laplace en el disco de radio 1, con valores en la frontera f() = 10 cos2 . 9) (Ecuaci

Markina, Irina

43

UNIVERSIDAD DE GRANADA ESCUELA TECNICA SUPERIOR DE INGENIERIAS  

E-print Network

UNIVERSIDAD DE GRANADA ESCUELA T´ECNICA SUPERIOR DE INGENIER´IAS INFORM´ATICA Y DE TELECOMUNICACI CIENCIAS DE LA COMPUTACI´ON E INTELIGENCIA ARTIFICIAL ESCUELA T´ECNICA SUPERIOR DE INGENIER´IAS INFORM Departamento de Ingenier´ia de dicha Universidad, donde he pasado tan buenos ratos. Tambi´en agradezco a Mario

Granada, Universidad de

44

Universidad Rey Juan Carlos Escuela Tecnica Superior de Ingenieria Informatica  

E-print Network

´agenes mediante un computador, por lo que lo que su aplicaci´on en v´ideo vigilancia resulta m´as que apropiada. En este campo resulta frecuente el seguimiento o detecci´on de elementos m´oviles, siendo menos computador. Una aplicaci´on directa de esto es el seguimiento de objetos desatendidos en zonas de paso, como

Pantrigo Fernández, Juan José

45

PROGRAMA JOVENS TALENTOS PARA A CINCIA  

E-print Network

Relações Exteriores para estrangeiros; a Carteira de Trabalho e Previdência Social; o Certificado de: máquinas calculadoras, agendas eletrônicas ou similares, telefones celulares, smartphones, tablets, ipod

Lucero, Jorge Carlos

46

Consejos para pacientes que reciben quimioterapia  

Cancer.gov

Serie de dieciocho (18) hojas sobre los efectos secundarios de la quimioterapia. Cada hoja contiene recomendaciones y sugerencias prcticas para ayudarle a controlar los efectos secundarios durante la quimioterapia, y a que se sienta mejor durante el tratamiento.

47

Consejos para pacientes que reciben radioterapia  

Cancer.gov

Serie de nueve (9) hojas sobre los efectos secundarios de la radioterapia. Cada hoja contiene recomendaciones y sugerencias prcticas para ayudarle a controlar los efectos secundarios durante la radioterapia, y a que se sienta mejor durante el tratamiento.

48

Introduccion Tecnica de backtracking Recorridos secuenciales Recorridos paralelos Conclusiones y trabajos futuros Tecnicas de autooptimizacion en recorridos de  

E-print Network

programaci´on de los usuarios no expertos. #12;Introducci´on T´ecnica de backtracking Recorridos secuenciales dado, programando una t´ecnica particular. Facilitan la programaci´on de los usuarios no expertos. #12. Facilitan la programaci´on de los usuarios no expertos. #12;Introducci´on T´ecnica de backtracking

Giménez, Domingo

49

TECNICA ENDOSCOPICA E TECNICA A CIELO APERTO PER IL TRATTAMENTO DEL DITO A SCATTO: RISULTATI A CONFRONTO  

Microsoft Academic Search

SUMMARY According to our experience and reports found in the literature, the main complaint of patients after an open trigger finger release is pain persistence at the incision site and, in a few cases, scar retraction. For this reason, endoscopic trigger finger release has been introduced in our Unit. In this prospective clinical trial, we operated two consecutive groups of

E. CAVALLI; L. PEGOLI; P. CORTESE; A. GHEZZI; G. PAJARDI

50

Software Libre para ensear o aprender Matemtica  

E-print Network

Software Libre para enseñar o aprender Matemática Porqué y Cómo Pablo De Nápoli pdenapo@dm.uba.ar #12;Introducción · En esta charla, presentaremos algunos de los pogramas que son software libre, que ventajas de utilizar software libre para la docencia y la investigación en matemática. #12;¿Por qué

De Nápoli, Pablo Luis

51

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

52

The ParaScope parallel programming environment  

NASA Technical Reports Server (NTRS)

The ParaScope parallel programming environment, developed to support scientific programming of shared-memory multiprocessors, includes a collection of tools that use global program analysis to help users develop and debug parallel programs. This paper focuses on ParaScope's compilation system, its parallel program editor, and its parallel debugging system. The compilation system extends the traditional single-procedure compiler by providing a mechanism for managing the compilation of complete programs. Thus, ParaScope can support both traditional single-procedure optimization and optimization across procedure boundaries. The ParaScope editor brings both compiler analysis and user expertise to bear on program parallelization. It assists the knowledgeable user by displaying and managing analysis and by providing a variety of interactive program transformations that are effective in exposing parallelism. The debugging system detects and reports timing-dependent errors, called data races, in execution of parallel programs. The system combines static analysis, program instrumentation, and run-time reporting to provide a mechanical system for isolating errors in parallel program executions. Finally, we describe a new project to extend ParaScope to support programming in FORTRAN D, a machine-independent parallel programming language intended for use with both distributed-memory and shared-memory parallel computers.

Cooper, Keith D.; Hall, Mary W.; Hood, Robert T.; Kennedy, Ken; Mckinley, Kathryn S.; Mellor-Crummey, John M.; Torczon, Linda; Warren, Scott K.

1993-01-01

53

PREPARE UN EQUIPO PORTTIL PARA EMERGENCIAS Prepare un equipo portatil para emergencias de modo que pueda  

E-print Network

libre) 2. Equipos medicos caseros (ejemplos: medidor de glucosa, monitor de presion arterial, bastonPREPARE UN EQUIPO PORTÁTIL PARA EMERGENCIAS Prepare un equipo portatil para emergencias de modo que llevar el equipo. Incluya los siguientes artículos en el equipo: 1. Medicamentos (recetados y de venta

54

MTODOS PARA DETERMINAO DA DENSIDADE BSICA DE CAVACOS PARA CONFERAS E FOLHOSAS  

Microsoft Academic Search

1 - INTRODUO A densidade da madeira uma caracterstica complexa resultante da combinao de diversos fatres. Existem inmeros trabalhos mostrando sua relao com as dimenses das fibras, particularmente espessura da parede, volume dos vasos e parnquimas, proporo entre madeira primaveril e outonal, e arranjo dos elementos anatmicos. ste assunto tem sido intensivamente estudado para as conferas, porm para as

Celso Edmundo; Bochetti Foelkel; Maria Aparecida Mouro Brasil; Luiz Ernesto; George Barrichelo

55

PROJECTO LEXNET OLHA PARA AS REDES WIRELESS  

E-print Network

PROJECTO LEXNET OLHA PARA AS REDES WIRELESS As radiaes provocadas pelas redes sem fios esto. PAG. 6 #12;Radiaes das redes wireless debaixo de olho O projecto europeu Lexnet tem como objectivo redes de comunicaes mveis, GSM, Wi-Fi, r- dio, sem comprometer a qualidade dos ser- vios. Tendo

Instituto de Sistemas e Robotica

56

Smartphones para cegos Uma inveno portuguesa  

E-print Network

Smartphones para cegos Uma invenção portuguesa Usar um ecrã tátil de forma discreta, sem recurso ao mentores do projeto. O Holi?raille é uma espécie de capa, acoplável à parte de trás de um smartphone e que

Instituto de Sistemas e Robotica

57

Cartilha para Legalizao de Casas Religiosas  

E-print Network

Cartilha para Legalizao de Casas Religiosas de Matriz Africana #12;2 Rio de Janeiro, 30 de maio Secretaria Estadual de Assistncia Social e Direitos Humanos do Rio de Janeiro. NIREMA: Ncleo Social e Direitos Humanos do Rio de Janeiro Coordenador Geral Prof. Adriano Pilatti Centro de Cincias

58

Semntica Operacional para la Programacin en Lgica  

E-print Network

sustitucin tal que (A) = A Def: Sean ={ [U1, s1], ..., [Um, sm] } y = { [V1, t1], ..., [Vn, tn] } sendas sustituciones, tales que Ui Vj y Ui no aparece en tj, para todo par i, j tal que 1 i m y 1 j n. Entonces(S) ], [Y, a], [Z, T] }{ [S,W], [T, b]}= {[X, f(W)], [Y, a], [Z, b], [S,W], [T, b]} Def: Sean ={ [U1, s1

Simari, Guillermo R.

59

Semntica Operacional para la Programacin en Lgica  

E-print Network

(A) = A Def: Sean ={ [U1, s1], ..., [Um, sm] } y = { [V1, t1], ..., [Vn, tn] } sendas sustituciones, tales que Ui Vj y Ui no aparece en tj, para todo par i, j tal que 1 i m y 1 j n. Entonces, definimos la, T] }{ [S,W], [T, b]}= {[X, f(W)], [Y, a], [Z, b], [S,W], [T, b]} Def: Sean ={ [U1, s1], ..., [Um

Simari, Guillermo R.

60

Ortho-Para Hydrogen Ratiometer Design  

Microsoft Academic Search

The design and performance of a thermal conductivity gauge to measure the ratio of ortho- to para-hydrogen content is reported. The gauge employs an ultra-thin film as heater and sensor. This ratiometer has a nearly pressure-independent thermal conductivity response over a broad pressure range. The thermal conductivity of hydrogen gas and nitrogen gas have been measured and found qualitatively correct.

D. Zhou; N. S. Sullivan

2006-01-01

61

Para-hydrogen perspectives in hyperpolarized NMR.  

PubMed

The first instance of para-hydrogen induced polarization (PHIP) in an NMR experiment was serendipitously observed in the 1980s while investigating a hydrogenation reaction (Seldler et al., 1983; Bowers and Weitekamp, 1986, 1987; Eisenschmid et al., 1987) [1-4]. Remarkably a theoretical investigation of the applicability of para-hydrogen as a hyperpolarization agent was being performed in the 1980's thereby quickly providing a theoretical basis for the PHIP-effect (Bowers and Weitekamp, 1986) [2]. The discovery of signal amplification by a non-hydrogenating interaction with para-hydrogen has recently extended the interest to exploit the PHIP effect, as it enables investigation of compounds without structural alteration while retaining the advantages of spectroscopy with hyperpolarized compounds [5]. In this article we will place more emphasis of the future applications of the method while only briefly discussing the efforts that have been made in the understanding of the phenomenon and the development of the method so far. PMID:23932399

Glggler, Stefan; Colell, Johannes; Appelt, Stephan

2013-10-01

62

TELEMEDICINA: UN DESAFO PARA AMRICA LATINA  

PubMed Central

La telemedicina es una tendencia creciente en la prestacin de los servicios mdicos. Aunque la eficacia de esta prctica no ha estado bien establecida, es probable que los pases en desarrollo compartirn este nuevo paradigma con los desarrollados. Los defensores de la telemedicina en Amrica Latina sostienen que ser una herramienta til para reducir las disparidades y mejorar la accesibilidad de atencin de salud. Aunque Amrica Latina quiz se convierta en un lugar para la investigacin e investigacin de estos procedimientos, no est claro cmo la telemedicina podra contribuir a mejorar la accesibilidad para las poblaciones desfavorecidas, o coexistir con sistemas de atencin de salud pblicos crnicamente enfermos. Telemedicine is a growing trend in the provision of medical services. Although the effectiveness of this practice has not been well established, it is likely that developing countries will share this new paradigm with developed ones. Supporters of telemedicine in Latin America maintain that it will be a useful tool for reducing disparities and improving health care accessibility. Although Latin America might become a place for research and investigation of these procedures, it is not clear how telemedicine could contribute to improving accessibility for disadvantaged populations, or coexist with chronically ill-funded public healthcare systems. PMID:21625326

Litewka, Sergio

2011-01-01

63

BECAS DE MASTER PARA DESARROLLAR TRABAJOS DE INVESTIGACIN EN EL  

E-print Network

10 becas para realizar masters para estudiantes de cualquier nacionalidad que sean admitidos en las.alvarez@co.ieo.es Biodiversidad y Actividad Microbiana del Ecosistema Pelgico Profundo en el Atlntico Norte Marta M. Varela

Fraguela, Basilio B.

64

Centro para la Salud Mundial (CGH) del NCI  

Cancer.gov

El Centro para la Salud Mundial (CGH) del Instituto Nacional del Cncer coordina actividades de investigacin y trabaja con socios nacionales e internacionales para comprender y enfrentar la carga que representa el cncer a nivel mundial.

65

Planificacin para la etapa final de la vida  

Cancer.gov

Informacin para pacientes, sus familiares y amigos sobre el cuidado del paciente terminal, la planificacin para el final de la vida, y la afliccin, el duelo y manejo de la prdida de un ser querido.

66

Gua para la Evaluacin de Riesgo Ambiental de Organismos  

E-print Network

Gua para la Evaluacin de Riesgo Ambiental de Organismos Genticamente Modificados #12;#12;Gua para la Evaluacin de Riesgo Ambiental de Organismos Genticamente Modificados #12;APOYO: 2012 ILSI) Guia para la evaluacin de riesgo ambiental de organismos genticamente midificados / [editores] Paulo

Parrott, Wayne

67

Guia para a Avaliao do Risco Ambiental de Organismos  

E-print Network

Guia para a Avaliao do Risco Ambiental de Organismos Geneticamente Modificados 1 Edio, So Paulo - ILSI Brasil 2012 #12;#12;Guia para a Avaliao do Risco Ambiental de Organismos Geneticamente para a Avaliao do Risco Ambiental de Organismos Geneticamente Modificados / [editores] Paulo Paes de

Parrott, Wayne

68

Protocolo de Espacios. Tutorial de estancias TUTORIAL PARA RELLENAR EL  

E-print Network

Protocolo de Espacios. Tutorial de estancias TUTORIAL PARA RELLENAR EL EXPEDIENTE ESPACIAL DE ESTANCIAS Objetivo del tutorial: Explicar paso a paso el procedimiento para realizar el expediente de estancias En este tutorial aprender a: Seleccionar mapas de los edificios para imprimir Comprobar los

Escolano, Francisco

69

Technological Foresight - Um instrumento para poltica cientfica e tecnolgica1  

Microsoft Academic Search

Este texto tem por objetivo apresentar a abordagem de technological foresight2, crescentemente utilizada em vrios pases como instrumento para a alocao de fundos pblicos de C&T, para definio de priorida- des de pesquisa e para melhorar a articulao das organizaes de pes- quisa com as redes de inovao e o setor produtivo. So discutidas suas bases tericas, suas principais caractersticas

MAURO ZACKIEWICZ; SRGIO SALLES-FILHO

70

Control del dolor: Apoyo para las personas con cncer  

Cancer.gov

Contiene informacin sobre las medicinas contra el dolor para pacientes con cncer, los planes para controlarlo, cmo hablar con su equipo de atencin mdica sobre el dolor que usted siente y qu hacer para controlar los efectos fsicos y emocionales del mismo.

71

Publicaciones IFMBE - Instrucciones para los Autores en la Preparacin de Artculos para el IV Congreso Latinoamericano de Ingeniera Biomdica  

Microsoft Academic Search

Este modelo presenta las instrucciones para la preparacin de artculos para el CLAIB2007, basado en la serie de publicaciones del IFMBE. El mismo pretende guiar a los autores en la preparacin de la versin electrnica de sus artculos. Solamente los artculos que respeten este modelo sern considerados para aceptacin y publicacin en los Ana- les del evento. El Abstract debe

A. B. Firstauthor; C. Coauthor

72

Semana nacional de preparacin para clima severo 2 al 8 de marzo de Manual para las redes sociales  

E-print Network

clima severo en las redes sociales. Prepararse para clima severo va ms all de proteger a su familiaSemana nacional de preparacin para clima severo 2 al 8 de marzo de 2014 Manual para las redes sociales Usted, tambin, puede ser como una fuerza de la naturaleza en su comunidad ayudando a la Agencia

73

Modelizaci'on conceptual declarativa en un lenguaje l'ogicofuncional avanzado \\Lambda  

E-print Network

programaci'on declarativos proporcionan un estilo de programaci'on potente que reduce el tiempo de desarrollo modelizaci'on conceptual utilizan­ do t'ecnicas de programaci'on declarativa. La Secci'on 4 plantea el modelo multinacional que aspira a convertir el lenguaje Curry en un est'andar para la programaci'on l'ogico funcional

Escobar, Santiago

74

Producing and quantifying enriched para-H2  

NASA Astrophysics Data System (ADS)

The production of enriched para-H2 is useful for many scientific applications, but the technology for producing and measuring para-H2 is not yet widespread. In this note and in the accompanying auxiliary material, we describe the design, construction, and use of a versatile standalone converter that is capable of producing para-H2 enrichments of up to ?99.99% at continuous flow rates of up to 0.4 SLM. We also discuss para-H2 storage and back conversion rates, and improvements to three techniques (thermal conductance, NMR, and solid hydrogen impurity spectroscopy) used to quantify the para-H2 enrichment.

Tom, Brian A.; Bhasker, Siddhartha; Miyamoto, Yuki; Momose, Takamasa; McCall, Benjamin J.

2009-01-01

75

Allergic contact dermatitis to para-phenylenediamine.  

PubMed

Exposure to hair dye is the most frequent route of sensitisation to para-phenylenediamine (PPD), a common contact allergen. International studies have examined the profile of PPD, but Australian-sourced information is lacking. Patients are often dissatisfied with advice to stop dyeing their hair. This study examines patients' characteristics, patch test results and outcomes of PPD allergy from a single Australian centre, through a retrospective analysis of patch test data from 2006 to 2013 at the Liverpool Hospital Dermatology Department. It reviews the science of hair dye allergy, examines alternative hair dyes and investigates strategies for hair dyeing. Of 584 patients, 11 were allergic to PPD. Our PPD allergy prevalence rate of 2% is at the lower end of international reported rates. About half these patients also react to para-toluenediamine (PTD). Affected patients experience a significant lifestyle disturbance. In all, 78% tried alternative hair dyes after the patch test diagnosis and more than half continued to dye their hair. Alternative non-PPD hair dyes are available but the marketplace can be confusing. Although some patients are able to tolerate alternative hair dyes, caution is needed as the risk of developing an allergy to other hair dye ingredients, especially PTD, is high. PMID:25302475

Jenkins, David; Chow, Elizabeth T

2015-02-01

76

Programas del NCI: Anlisis molecular para la eleccin de tratamientos (MATCH) y MATCH para pacientes infantiles  

Cancer.gov

Informacin sobre el Programa de anlisis molecular para la eleccin de tratamientos (MATCH) del NCI, el cual asignar pacientes con tumores slidos y linfomas avanzados que hayan dejado de responder al tratamiento convencional a estudios clnicos de acuerdo con las anomalas genticas de sus tumores.

77

Semana Nacional de Preparacin para Clima Severo 2014 Pgina 1 Plantilla para artculos de blog  

E-print Network

amenaza de clima severo. El tornado categora EF-5 que azot a Moore, Oklahoma el 20 de mayo fue el supervivencia. Esto es especialmente importante ante la amenaza de clima severo. Se estima que el tornado. Visite weather.gov para obtener la informacin ms actualizada sobre las amenazas meteorolgicas. Tome

78

Chapter 4: PARAS Microkernel at a Glance 1 PARAS Microkernel at a Glance  

E-print Network

current ones) to manage its resources. To meet this requirement, we have developed an OS kernel called-of-the-art microkernel technology. It supports most essential services such as process, memory, and interprocess communication management. In the design of the PARAS microkernel, we have adopted the philosophy of migrating

Melbourne, University of

79

Controlling External Parasites CeCarter\\FactSheets\\ExParas.indd ExParas.pdf  

E-print Network

, or manure ­ or in wet areas such as a muddy area around a water tub. Good stable management practices canParas.pdf Revised 2009-11 by removing places where larva can grow. Drain any muddy areas; clean up any spilled feed is important. Make sure the shelter is kept clean, and consider adding a walk through barrier such as hanging

New Hampshire, University of

80

Ms para ellas - Sugerencias para cerrar la brecha entre gneros en las regiones en desarrollo  

Microsoft Academic Search

Segn el pensamiento convencional, la salud y la educacin son factores esenciales para el desarrollo econmico y social: permiten mejorar la distribucin del ingreso y la productividad, y adems, los ms beneficiados son los pobres. Sin embargo, en muchas regiones del mundo no todos los miembros de la sociedad reciben estos servicios equitativamente. En muchos casos las mujeres estn excluidas

Alessandro Magnoli

2005-01-01

81

Potencial de las comarcas aragonesas para la localizacin industrial. Implicaciones para las autoridades pblicas  

Microsoft Academic Search

RESUMEN Para que las empresas puedan desarrollar favorablemente sus actividades manufactureras, logsticas o de cualquier otra ndole, es necesario que el espacio fsico en el que se van a desarrollar disponga, de la infraestructura bsica que las organizaciones demandan y que afectan no slo al suelo industrial sino a las instalaciones que los propios polgonos les facilitan. El objetivo de

Luca Isabel Garca Cebrin; Antonio Muoz Porcar

2010-01-01

82

PLAN ARGENTINA INNOVADORA 2020 Temas estratgicos para convocatorias 2014  

E-print Network

abiótico. Producción de germoplasma de calidad para diferentes usos/servicios ambientales. Productos por capa. Control bacteriano en fondo de pozo para la reducción de la producción de sulfhídrico componentes electrónicos y microelectrónicos. Sistemas de automatización y control para procesos industriales

Santos, Juan

83

Ortho and Para Molecules of Water in Electric Field  

E-print Network

Stark effect is calculated by the perturbation theory method separately for the ortho and para water molecules. At room temperature, a 30%-difference in the energy change is found for the two species put in electric field. This implies a sorting of the ortho and para water molecules in non-uniform electric fields. The ortho/para water separation is suggested to occur in the course of steam sorption on a solid surface and of large-scale atmospheric processes.

S. N. Andreev; V. P. Makarov; V. I. Tikhonov; A. A. Volkov

2007-03-04

84

On Lightlike Geometry of Para-Sasakian Manifolds  

PubMed Central

We study lightlike hypersurfaces of para-Sasakian manifolds tangent to the characteristic vector field. In particular, we define invariant lightlike hypersurfaces and screen semi-invariant lightlike hypersurfaces, respectively, and give examples. Integrability conditions for the distributions on a screen semi-invariant lightlike hypersurface of para-Sasakian manifolds are investigated. We obtain a para-Sasakian structure on the leaves of an integrable distribution of a screen semi-invariant lightlike hypersurface. PMID:24892072

Acet, Bilal Eftal; K?l?, Erol

2014-01-01

85

Algoritmo genetico para la Descomposicion de Minkowski de poligonos convexos  

E-print Network

Algoritmo gen´etico para la Descomposici´on de Minkowski de pol´igonos convexos Edilma O´i presentamos un algoritmo gen´etico para el problema. 1 Introducci´on En diversas disciplinas actuales como rob´i presentamos una propuesta usando Algoritmos Gen´eticos, para resolver el problema de la de- scomposici´on de

Llanos, Diego R.

86

Estrategias cognitivo-conductuales para el manejo del craving  

Microsoft Academic Search

En el presente trabajo se revisaron los aspectos genera- les del craving y se destac su importancia para la adhe- rencia al tratamiento en adicciones. De igual manera se revisaron las diferentes estrategias cognitivo-conductua- les para el manejo del craving, las cuales incluan: detencin del pensamiento, tcnicas de distraccin, con- trol y programacin de actividades, entrenamiento en relajacin, tcnicas de

Ivn Gonzlez Salazar

2004-01-01

87

Elementos para una estrategia de desarrollo industrial en el Per  

Microsoft Academic Search

El objetivo de este trabajo es discutir las propuestas de desarrollo industrial existentes para el caso peruano. Esta discusin se ha1la a la luz de las experiencias de industrializacin seguidas por los pases en desarrollo, a fin de identificar los elementos cruciales para el diseo de una estrategia de desarrollo industrial de largo plazo.

Rodolfo Cermeo

1989-01-01

88

JavaLog: Un Lenguaje para la Programacion de Agentes  

Microsoft Academic Search

Resumen La programacin de sistemas multi-agentes ha sido generalmente soportada por le nguajes orientados a objetos o lenguajes lgicos. Ambos paradigmas muestran poseer caractersticas para soportar parcialmente el desarrollo de agentes. Sin embargo, si ambos paradigmas son integrados, una solucin a la programacin de agentes aparece en forma evidente. En este artculo, un lenguaje multi-paradigma para la programacin de agentes

Alejandro Zunino; Luis Berdn; Anala Amandi

2001-01-01

89

Identificador : 987811692 IMPRESO SOLICITUD PARA VERIFICACIN DE TITULOS OFICIALES  

E-print Network

UNIVERSIDAD SOLICITANTE CENTRO CDIGO CENTRO Universidad de A Corua Escuela Universitaria de Arquitectura A Corua RAMA DE CONOCIMIENTO Ingeniera y Arquitectura CONJUNTO CONVENIO No HABILITA PARA EL EJERCICIO DE ISCED 2 Ingeniera y Arquitectura Construccin e ingeniera civil Arquitectura y urbanismo HABILITA PARA

Fraguela, Basilio B.

90

Sistemas de Informao para a Web: Arquitecturas Aplicacionais  

E-print Network

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

da Silva, Alberto Rodrigues

91

Uma Proposta de Modelo para Objetos de Aprendizagem  

Microsoft Academic Search

Resumo. Algumas polticas pblicas tm impulsionado o desenvolvimento de material digital para uso como recurso no processo de ensino e aprendizagem, incentivando o surgimento de vrias equipes, cujos produtos desenvolvidos tendem a se concentrar em repositrios para que sejam acessveis ao pblicoalvo. Muitas vezes o entendim ento de quais elementos devem estar presentes num objeto varia entre as equipes, dificultando

Santos Rosa; Rogrio Avellar Cordeiro; Darcy Ribeiro

92

Mundos Virtuales para la Enseanza a travs de Internet  

Microsoft Academic Search

Resumen La aplicacin de los mundos virtuales para la docencia a travs de Internet hacen que el alumno pueda sumergirse en ambientes amigables que hacen ms ameno el aprendizaje. Este artculo presenta tres aplicaciones docentes desarrolladas en estos entornos. La primera de ellas, para la enseanza del vocabulario, muestra un conjunto de mundos virtuales diseados en VRML en los que

Inmaculada Remolar; Miguel Chover; scar Belmonte; Cristina Rebollo; Celso Campos

93

Evolucin de Funciones de Densidad de Probabilidad para Optimizacin Continua  

E-print Network

Evolución de Funciones de Densidad de Probabilidad para Optimización Continua Jorge Casillas y algoritmo está basado en la evolución de funciones de densidad de probabilidad para adaptarse a las zonas. Palabras clave -- optimización continua, funciones de densidad de probabilidad, estimación de

Casillas Barranquero, Jorge

94

Gua rpida para la solicitud de una accin Marie Curie  

E-print Network

Guía rápida para la solicitud de una acción Marie Curie Fellowship Subdirección General de ser considerado elegible para la solicitud de una Marie Curie Fellowship existen tres tipos de el proyecto Marie Curie a iniciar el doctorado. #12;¿Existen requisitos según mi nacionalidad? Las

Escolano, Francisco

95

Reitor da Universidade de Lisboa reclama "medidas urgentes" para  

E-print Network

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior António Cruz Serra pública, para que as universidades ganhem "mais autonomia administrativa e financeira" O novo reitor da Universidade de Lisboa (UL), resultante da fusão entre a Clássica e a Técnica, falou hoje na necessidade de

Instituto de Sistemas e Robotica

96

Creciendo Juntos Plan de la Universidad de Columbia para  

E-print Network

reubicación y reconstrucción de utilidades para sustituir alcantarillado y tuberías de agua y otros servicios a un ya existente regulador del alcantarillado en la avenida 12th. Columbia adjudicó este contrato para

Hone, James

97

Astronaut Walter Schirra during water egress para-drop training  

NASA Technical Reports Server (NTRS)

Astronaut Walter M. Schirra Jr., the Gemini-Titan 3 backup crew command pilot, is shown during water egress para-drop training activity in nearby Galveston Bay (10171); Schirra is shown in the water with his parachute crumpling during water egress para-drop training (10172); Schirra is retrieved from Galveston Bay by divers during water egress training (10173).

1965-01-01

98

Cooling by Para-to-Ortho-Hydrogen Conversion  

NASA Technical Reports Server (NTRS)

Catalyst speeds conversion, increasing capacity of solid hydrogen cooling system. In radial-flow catalytic converter, para-hydrogen is converted to equilibrium mixture of para-hydrogen and ortho-hydrogen as it passes through porous cylinder of catalyst. Addition of catalyst increases capacity of hydrogen sublimation cooling systems for radiation detectors.

Sherman, A.; Nast, T.

1983-01-01

99

LA LECTURA PARA LOS PROFESIONALES UNIVERSITARIOS. REFLEXIONES METODOLGICAS  

Microsoft Academic Search

La enseanza de las matemticas es actualmente de gran inters para los actores responsables del acto educativo, ya que los propsitos se entienden diferente para alumnos y profesores. Tal situacin ha llevado a los matemticos educativos y otros investigadores a indagar sobre las creencias y actitudes de estudiantes y docentes de matemticas y su influencia en el logro acadmico. Las

Maritza Batista Batista

2011-01-01

100

Towards a double field theory on para-Hermitian manifolds  

SciTech Connect

In a previous paper, we have shown that the geometry of double field theory has a natural interpretation on flat para-Khler manifolds. In this paper, we show that the same geometric constructions can be made on any para-Hermitian manifold. The field is interpreted as a compatible (pseudo-)Riemannian metric. The tangent bundle of the manifold has a natural, metric-compatible bracket that extends the C-bracket of double field theory. In the para-Khler case, this bracket is equal to the sum of the Courant brackets of the two Lagrangian foliations of the manifold. Then, we define a canonical connection and an action of the field that correspond to similar objects of double field theory. Another section is devoted to the Marsden-Weinstein reduction in double field theory on para-Hermitian manifolds. Finally, we give examples of fields on some well-known para-Hermitian manifolds.

Vaisman, Izu [Department of Mathematics, University of Haifa, Haifa (Israel)] [Department of Mathematics, University of Haifa, Haifa (Israel)

2013-12-15

101

Towards a double field theory on para-Hermitian manifolds  

NASA Astrophysics Data System (ADS)

In a previous paper, we have shown that the geometry of double field theory has a natural interpretation on flat para-Khler manifolds. In this paper, we show that the same geometric constructions can be made on any para-Hermitian manifold. The field is interpreted as a compatible (pseudo-)Riemannian metric. The tangent bundle of the manifold has a natural, metric-compatible bracket that extends the C-bracket of double field theory. In the para-Khler case, this bracket is equal to the sum of the Courant brackets of the two Lagrangian foliations of the manifold. Then, we define a canonical connection and an action of the field that correspond to similar objects of double field theory. Another section is devoted to the Marsden-Weinstein reduction in double field theory on para-Hermitian manifolds. Finally, we give examples of fields on some well-known para-Hermitian manifolds.

Vaisman, Izu

2013-12-01

102

Son las polticas locales una buena estrategia para dinamizar el mercado de trabajo? Algunos elementos para el caso colombiano  

Microsoft Academic Search

Resumen: En perodos de bajo crecimiento econmico, tiempos de recesin o crisis econmica, implementar una poltica fiscal contra-cclica puede ser una herramienta fundamental para crear empleo y dinamizar la economa. En Colombia, especficamente en las principales ciudades del pas existe una posibilidad concreta para que los gobiernos locales, a travs de incrementos del gasto de inversin, impacten positivamente en la

Diana Galvis G; Mauricio Lpez Gonzalez

2010-01-01

103

Dissociative recombination of highly enriched para-H3+  

NASA Astrophysics Data System (ADS)

The determination of the dissociative recombination rate coefficient of H3+ has had a turbulent history, but both experiment and theory have recently converged to a common value. Despite this convergence, it has not been clear if there should be a difference between the rate coefficients for ortho-H3+ and para-H3+. A difference has been predicted theoretically and could conceivably impact the ortho:para ratio of H3+ in the diffuse interstellar medium, where H3+ has been widely observed. We present the results of an experiment at the CRYRING ion storage ring in which we investigated the dissociative recombination of highly enriched (83.6%) para-H3+ using a supersonic expansion source that produced ions with Trot60-100 K. We observed an increase in the low energy recombination rate coefficient of the enriched para-H3+ by a factor of 1.25 in comparison to H3+ produced from normal H2 (ortho:para=3:1). The ratio of the rate coefficients of pure para-H3+ to that of pure ortho-H3+ is inferred to be 2 at low collision energies; the corresponding ratio of the thermal rate coefficients is 1.5 at electron temperatures from 60 to 1000 K. We conclude that this difference is unlikely to have an impact on the interstellar ortho:para ratio of H3+.

Tom, Brian A.; Zhaunerchyk, Vitali; Wiczer, Michael B.; Mills, Andrew A.; Crabtree, Kyle N.; Kaminska, Magdalena; Geppert, Wolf D.; Hamberg, Mathias; af Ugglas, Magnus; Vigren, Erik; van der Zande, Wim J.; Larsson, Mats; Thomas, Richard D.; McCall, Benjamin J.

2009-01-01

104

Construction of a Para-Ortho Hydrogen Test Cryostat  

NASA Astrophysics Data System (ADS)

In a prospective hydrogen economy it is necessary to verify the para concentration of the employed hydrogen. In case of a short storage time of about a few days only it has been shown that a partial conversion into para-hydrogen gives an optimized overall efficiency. Hence, an easy and reliable method of measuring the para-hydrogen concentration is needed. In this paper, the concept and construction of a small test cryostat are described and first results are presented. The measuring principle is based on a catalytic induced adiabatic ortho-para conversion of a hydrogen gas flow starting from a known temperature. The operation of the system only requires a certain amount of liquid nitrogen as coolant. To determine the concentration of para-hydrogen it is only necessary to measure the temperature of the gas before and after the adiabatic catalyst cell. The measuring cryostat is used for further investigation of the spontaneous para-ortho conversion in the supercritical state. In addition, the design of the cryostat allows the investigation of different catalyst materials regarding the catalytic activity and possible degradation by using a known para concentration for the measurement.

Essler, J.; Haberstroh, Ch.

2010-04-01

105

Influence of size effects on para-dichlorobenzene lattice dynamics  

NASA Astrophysics Data System (ADS)

We have obtained experimental low-frequency Raman spectra for light scattering by nanoparticles of para-dichlorobenzene of size 300-70 nm. As their sizes decrease, the line frequencies decrease. The size of the nanoparticles was determined using an electron microscope. We found that in the lattice vibrational spectrum of nanoparticles of size 300-70 nm, a summed spectrum appears from ?- para-dichlorobenzene and ?- para-ichlorobenzene. This is consistent with molecular dynamics calculations of the structure of the nanoparticle and calculations of the histograms for the lattice vibrational spectra by the Dean method.

Korshunov, M. A.

2010-05-01

106

Kinetics and mechanism of benzyl para -chlorophenyl ketone oxidation  

Microsoft Academic Search

The oxidation of benzyl para-chlorophenyl ketone in chlorobenzene at 100C occurs through the formation of short chains. Non-peroxide reaction products\\u000a (1-(4-chlorophenyl)-2-hydroxy-2-phenyl-1-ethanone, para-chlorobenzyl, benzaldehyde, and para-chlorobenzoic acid) are formed not only by the transformation of hydroperoxide (1-(4-chlorophenyl)-2-hydroxy-2-phenyl-1-ethanone)\\u000a but also (or solely) through the recombination of ?-ketoperoxyl radicals with or without chain termination. ?-Hydroperoxide\\u000a decomposes predominantly through a heterolytic route to form

O. A. Revkov; S. G. Voronina; A. L. Perkel

2007-01-01

107

Vibronic Spectroscopy of a Nitrile/Isonitrile Isoelectronic Pair: para-Diisocyanobenzene and para-Isocyanobenzonitrile.  

PubMed

The ultraviolet spectroscopy of isoelectronic pair para-diisocyanobenzene (pDIB) and para-isocyanobenzonitrile (pIBN) has been studied under gas-phase, jet-cooled conditions. These molecules complete a sequence of mono and disubstituted nitrile/isonitrile benzene derivatives, enabling a comparison of the electronic effects of such substitution. Utilizing laser-induced fluorescence (LIF) and resonant two-photon ionization (R2PI) spectroscopy, the S0-S1 electronic origins of pDIB and pIBN have been identified at 35?566 and 35?443 cm(-1), respectively. In pDIB, the S0-S1 origin is very weak, with b3g fundamentals induced by vibronic coupling to the S2 state dominating the spectrum at 501 cm(-1) (?17, isocyano bend) and 650 cm(-1) (?16, ring distortion). The spectrum extends over 5000 cm(-1), remaining sharp and relatively uncongested over much of this range. Dispersed fluorescence (DFL) spectra confirm the dominating role played by vibronic coupling and identify Franck-Condon active ring modes built off the vibronically-induced bands. In pDIB, the S2 state has been tentatively observed at about 6100 cm(-1) above the S0-S1 origin. In pIBN, the S0-S1 origin is considerably stronger, but vibronic coupling still plays an important role, involving fundamentals of b2 symmetry. The bending mode of the nitrile group dominates the vibronically-induced activity. Calculations carried out at the TD-DFT B3LYP/6-31+G(d) level of theory account for the extremely weak S0-S1 oscillator strength of pDIB and the larger intensity of the S0-S1 origins of pIBN and pDCB (para-dicyanobenzene) as nitrile groups are substituted for isonitrile groups. In pDIB, a nearly perfect cancellation of transition dipoles occurs due to two one-electron transitions that contribute nearly equally to the S0-S1 transition. The spectra of both molecules show no clear evidence of charge-transfer interactions that play such an important role in some cyanobenzene derivatives. PMID:25699407

Mehta-Hurt, Deepali N; Korn, Joseph A; Gutberlet, Anna K; Zwier, Timothy S

2015-03-26

108

Preguntas para hacerle al doctor acerca del cncer  

Cancer.gov

Serie de preguntas, organizadas por tema, que los pacientes con cncer pueden hacerle al mdico o a otros miembros de su equipo de atencin mdica para conocer ms acerca de su tipo de cncer y lo que pueden esperar.

109

DIANA: Anlisis del discurso para la comprensin del conocimiento  

E-print Network

DIANA: Análisis del discurso para la comprensión del conocimiento DIANA: DIscourse ANAlysis by the Spanish Ministry of Economy and Competitiveness. Paolo Rosso coordinates the DIANA project and leads

Rosso, Paolo

110

Inmunoterapia: Uso del sistema inmunitario para tratar el cncer  

Cancer.gov

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

111

Control del dolor: Apoyo para las personas con cncer  

Cancer.gov

Libro sobre el control del dolor en pacientes con cncer. Cubre los mtodos y medicinas, as como los efectos fsicos y emocionales del dolor. Es una adaptacin cultural para el pblico de habla hispana del libro en ingls Pain Control.

112

La terapia hormonal para la menopausia y el cncer  

Cancer.gov

Hoja informativa acerca de los resultados de los estudios sobre el uso de la terapia hormonal para la menopausia. Incluye informacin sobre el efecto de esta terapia en el cuerpo y explica los riesgos y beneficios del uso de hormonas.

113

DEPARTAMENTO DE INGENIERIA INFORMATICA Normativas para el Programa Doctorado del  

E-print Network

DEPARTAMENTO DE INGENIERIA INFORMATICA Normativas para el Programa Doctorado del Departamento de Valiente, 11. Madrid, 28049. Teléfono: 914972230 #12;DEPARTAMENTO DE INGENIERIA INFORMATICA 4. Una vez

Autonoma de Madrid, Universidad

114

MANUAL PARA EL ANLISIS ECONMICO DE REAS NATURALES PROTEGIDAS EN  

E-print Network

VOLUMEN 3 INSTRUMENTOS, ESTRATEGIAS E INCENTIVOS ECONMICOS PARA LA CONSERVACIN EN LAS REAS NATURALES.3. Regulacin directa o instrumentos econmicos?......................................... 4 1.4. El contexto goce o aprovechamiento...................................... 19 5. Instrumentos financieros

Enrquez Andrade, Roberto Ramn

115

Mensaje para alumnos y padres - Duration: 3:01.  

NASA Video Gallery

El astronauta de la NASA Jos Hernndez alienta a los estudiantes a que sigan sus sueos. Hernndez tambin habla acerca del papel que juegan los padres para ayudar a que sus hijos hagan realidad s...

116

Preguntas para el doctor si tiene un cncer avanzado  

Cancer.gov

Serie de preguntas que los pacientes con cncer pueden hacerle al mdico sobre las opciones de tratamiento si el cncer es avanzado, las formas de controlar los sntomas y cmo prepararse para la etapa final de la vida.

117

40 CFR 721.9520 - Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye (generic).  

Code of Federal Regulations, 2010 CFR

... false Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...9520 Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...generically as methylated-para-rosaniline salt of a trisulfonated triarylmethane...

2010-07-01

118

40 CFR 721.9520 - Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye (generic).  

Code of Federal Regulations, 2013 CFR

... false Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...9520 Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...generically as methylated-para-rosaniline salt of a trisulfonated triarylmethane...

2013-07-01

119

Cooling by conversion of para to ortho-hydrogen  

NASA Technical Reports Server (NTRS)

The cooling capacity of a solid hydrogen cooling system is significantly increased by exposing vapor created during evaporation of a solid hydrogen mass to a catalyst and thereby accelerating the endothermic para-to-ortho transition of the vapor to equilibrium hydrogen. Catalyst such as nickel, copper, iron or metal hydride gels of films in a low pressure drop catalytic reactor are suitable for accelerating the endothermic para-to-ortho conversion.

Sherman, A. (inventor)

1983-01-01

120

Pasanta en TICs para el Carlos Rey Moreno  

E-print Network

EHAS 3 en Perú con GTR-PUCP Objetivo Madrid: Desarrollo software para la mejora de la metodología de1 Pasantía en TICs para el desarrollo Carlos Rey Moreno I.T.T Sistemas de Telecomunicación UC3M MSc Relaciones Internacionales y Desarrollo AAU Investigador Fundación EHAS Actividades académicas en Cooperación

Autonoma de Madrid, Universidad

121

Para hydrogen equilibration in the atmospheres of the outer planets  

NASA Technical Reports Server (NTRS)

The thermodynamic behavior of the atmospheres of the Jovian planets is strongly dependent on the extent to which local thermal equilibration of the ortho and para states of molecular hydrogen is achieved. Voyager IRIS data from Jupiter imply substantial departures of the para hydrogen fraction from equilibrium in the upper troposphere at low latitudes, but with values approaching equilibrium at higher latitudes. Data from Saturn are less sensitive to the orth-para ratio, but suggest para hydrogen fractions near the equilibrium value. Above approximately the 200 K temperature level, para hydrogen conversion can enhance the efficiency of convection, resulting in a substantial increase in overturning times on all of the outer planets. Currently available data cannot definitively establish the ortho-para ratios in the atmospheres of Uranus and Neptune, but suggest values closer to local equilibrium than to the 3.1 normal ratio. Modeling of sub-millimeter wavelength measurements of these planets suggest thermal structures with frozen equilibrium lapse rates in their convective regions.

Conrath, Barney J.

1986-01-01

122

ParaText : scalable text modeling and analysis.  

SciTech Connect

Automated processing, modeling, and analysis of unstructured text (news documents, web content, journal articles, etc.) is a key task in many data analysis and decision making applications. As data sizes grow, scalability is essential for deep analysis. In many cases, documents are modeled as term or feature vectors and latent semantic analysis (LSA) is used to model latent, or hidden, relationships between documents and terms appearing in those documents. LSA supplies conceptual organization and analysis of document collections by modeling high-dimension feature vectors in many fewer dimensions. While past work on the scalability of LSA modeling has focused on the SVD, the goal of our work is to investigate the use of distributed memory architectures for the entire text analysis process, from data ingestion to semantic modeling and analysis. ParaText is a set of software components for distributed processing, modeling, and analysis of unstructured text. The ParaText source code is available under a BSD license, as an integral part of the Titan toolkit. ParaText components are chained-together into data-parallel pipelines that are replicated across processes on distributed-memory architectures. Individual components can be replaced or rewired to explore different computational strategies and implement new functionality. ParaText functionality can be embedded in applications on any platform using the native C++ API, Python, or Java. The ParaText MPI Process provides a 'generic' text analysis pipeline in a command-line executable that can be used for many serial and parallel analysis tasks. ParaText can also be deployed as a web service accessible via a RESTful (HTTP) API. In the web service configuration, any client can access the functionality provided by ParaText using commodity protocols ... from standard web browsers to custom clients written in any language.

Dunlavy, Daniel M.; Stanton, Eric T.; Shead, Timothy M.

2010-06-01

123

Sistemas Correctores de Campo Para EL Telescopio Cassegrain IAC80  

NASA Astrophysics Data System (ADS)

El proyecto de instrumentacin de mayor importancia que ha tenido el Instituto de Astrofisica de Canarias en los ltimos afios ha sido el diseflo y construccin del te1escopio IAC8O. Este requera del esfuerzo con junto en mecnica, ptica y electrnica, lo que facilit la estructuracin 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 clsico tipo Cassegrain, con una razn focal F/i 1.3 para el sistema Casse grain y una razn focal F/20 para el sistema Coud. Posteriormente, aunque se mantuvo la filosofia de que el sistema bsico fuera el F/11.3, se consider conveniente el diseo de secundarios para razones focales F/16 y F/32, y se elimin el de F/20. Sin embargo, dada la importancia relativa que un foco estrictamente fotogrfico tiene en un telescopio moderno, diseado bsicamente para fotometra fotoelctrica y con un campo util mnimamente de 40 minutos de arco, se decdi Ilevar a cabo el diseo de un secundario F/8 con un sistema corrector de campo, pero que estuviera formado nicamente por lentes con superficies esfricas para que asl su construccin fuera posible en Espaa en Mxico. La creciente utilizacin de detectores bidimensionales para fines de investigacin astron6mica y la viabilidad de que en un futuro cercano stos tengan un rea sensible cada vez mayor, hicieron atractiva la idea de tener diseado un sistema corrector de campo para el foco primario (F/3), con un campo til mnimo de un grado, y tambin con la limitante de que sus componentes tuvieron slamente suprficies esfricas. Ambos diseos de los sis-temas correctores de campo se llevaron a cabo, en gran medida, como parte de un proyecto de colaboracin e intercambio en el rea de diseo y evaluacin de sistemas pticos.

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

1987-05-01

124

Evolution of invertebrate deuterostomes and Hox/ParaHox genes.  

PubMed

Transcription factors encoded by Antennapedia-class homeobox genes play crucial roles in controlling development of animals, and are often found clustered in animal genomes. The Hox and ParaHox gene clusters have been regarded as evolutionary sisters and evolved from a putative common ancestral gene complex, the ProtoHox cluster, prior to the divergence of the Cnidaria and Bilateria (bilaterally symmetrical animals). The Deuterostomia is a monophyletic group of animals that belongs to the Bilateria, and a sister group to the Protostomia. The deuterostomes include the vertebrates (to which we belong), invertebrate chordates, hemichordates, echinoderms and possibly xenoturbellids, as well as acoelomorphs. The studies of Hox and ParaHox genes provide insights into the origin and subsequent evolution of the bilaterian animals. Recently, it becomes apparent that among the Hox and ParaHox genes, there are significant variations in organization on the chromosome, expression pattern, and function. In this review, focusing on invertebrate deuterostomes, I first summarize recent findings about Hox and ParaHox genes. Next, citing unsolved issues, I try to provide clues that might allow us to reconstruct the common ancestor of deuterostomes, as well as understand the roles of Hox and ParaHox genes in the development and evolution of deuterostomes. PMID:21802045

Ikuta, Tetsuro

2011-06-01

125

Study on cross-reactivity to the para group.  

PubMed

In 80 patients, positive to at least one hapten of the para group (para-phenylenediamine, diaminodiphenylmethane, benzocaine, PPD mix), patch tests were carried out with freshly prepared solutions of para-phenylenediamine (PPD) and of 3 selected aromatic compounds related structurally to PPD (para-aminophenol, ortho-aminophenol, hydroquinone). The number of positive reactions correlated with the rate of decomposition of the substances as evaluated by high-pressure liquid chromatography. PPD, which was almost decomposed after 24 h, gave the highest number of positive reactions, followed by ortho-aminophenol and by para-aminophenol, while hydroquinone, which was oxidized to the extent of 35%, did not give any reactions. To evaluate if a different rate of oxidation can modify the patch test response, in the same patients and in 10 normal volunteers, tests were carried out with PPD solutions containing the oxidizing agent silver oxide (0.1%). By this procedure a significant increase in the number of positive responses was observed. The results suggest that the rate of decomposition and therefore the amount of quinone(s) generated, might be the key to eliciting patch test responses to oxidizable aromatic haptens. PMID:2242776

Picardo, M; Cannistraci, C; Cristaudo, A; De Luca, C; Santucci, B

1990-01-01

126

El uso de la neuromodulacin para el tratamiento del temblor  

PubMed Central

Introduccin: El temblor puede ser un desorden incapacitante y el tratamiento de primera lnea para estos pacientes es farmacolgico. Sin embargo, este tratamiento puede llevar a una reduccin satisfactoria del temblor en slo el 50% de los pacientes con temblor esencial. La talamotoma era el tratamiento de eleccin para el temblor refractario al tratamiento mdico hasta que comenz a utilizarse la estimulacin cerebral profunda (ECP) del ncleo ventral intermedio (Vim) del tlamo. En la actualidad, raramente se realiza la talamotoma. Mtodos: Este artculo es una revisin no sistemtica de las indicaciones, resultados, parmetros de programacin y tcnica quirrgica de la ECP del Vim para el tratamiento del temblor. Resultados: Aunque los resultados clnicos son similares usando la talamotoma o la ECP del Vim, la primera causa ms efectos adversos que la ltima. Adems, la ECP puede ser usada bilateralmente, mientras que la talamotoma tiene un alto riesgo de causar disartria cuando se realiza de ambos lados. La ECP del Vim logr una adecuada mejora del temblor en varias series de pacientes con temblor causado por temblor esencial, enfermedad de Parkinson o esclerosis mltiple. Adems del Vim, hay otros blancos que estn siendo usados por varios autores, tales como la zona incerta y las radiaciones prelemniscales. Conclusin: La ECP del Vim es un tratamiento til para el temblor incapacitante refractario al tratamiento mdico. Es esencial realizar una precisa seleccin de pacientes, as como utilizar una tcnica quirrgica correcta. An se desconoce el mejor blanco estereotctico para el temblor, aunque el Vim es el ms usado. PMID:25165613

Bendersky, Damin; Ajler, Pablo; Yampolsky, Claudio

2014-01-01

127

Hox and ParaHox genes: a review on molluscs.  

PubMed

Hox and ParaHox genes are involved in patterning the anterior-posterior body axis in metazoans during embryo development. Body plan evolution and diversification are affected by variations in the number and sequence of Hox and ParaHox genes, as well as by their expression patterns. For this reason Hox and ParaHox gene investigation in the phylum Mollusca is of great interest, as this is one of the most important taxa of protostomes, characterized by a high morphological diversity. The comparison of the works reviewed here indicates that species of molluscs, belonging to different classes, share a similar composition of Hox and ParaHox genes. Therefore evidence suggests that the wide morphological diversity of this taxon could be ascribed to differences in Hox gene interactions and expressions and changes in the Hox downstream genes rather than to Hox cluster composition. Moreover the data available on Hox and ParaHox genes in molluscs compared with those of other Lophotrochozoa shed light on the complex and controversial evolutionary histories that these genes have undergone within protostomes. PMID:25394269

Biscotti, Maria Assunta; Canapa, Adriana; Forconi, Mariko; Barucca, Marco

2014-12-01

128

Matriz de contabilidad social extendida ambientalmente para anlisis econmico de la regin del Bio Bio  

Microsoft Academic Search

Se construye una Matriz de Contabilidad Social Extendida Ambientalmente para la Regin del Bo Bo. Para ello aplicamos el mtodo indirecto conocido como Cross Entropy para actualizar una Matriz de Contabilidad Social de esta regin desde el ao 1996 al 2006. Esta matriz sirve de base para un anlisis de multiplicadores, cuyo fin es identificar los sectores productivos de la

Cristian Mardones P; Jorge Saavedra E

2011-01-01

129

Un algoritmo para la deteccion de horizonte en dispositivos voladores radiocontrolados  

Microsoft Academic Search

Presentamos un algoritmo para la deteccion no supervisada en tiempo real del hori- zonte en imagenes de video. El mismo estad isenado para ser implementado en dispositivos autonomos de bajo costo y capacidad de computo (microcontroladores), como para ser incorporados en vehculos voladores no tripulados (UAVs). Esto permitiral a obtencion de informacion indispensable para la orientacion, navegacion, georeferenciamiento y la

Pablo Odorico; Claudio Delrieux

130

Usina de cincias: um espao pedaggico para aprendizagens mltiplas  

NASA Astrophysics Data System (ADS)

Entendemos que o Ensino de Astronomia especialmente apropriado para motivar os alunos e aprofundar contedos em diversas reas do conhecimento, pois envolve temas ligados Fsica, Matemtica, Qumica, Computao, Tratamento de Imagens e Instrumentao de Alta Preciso, alm daqueles pertinentes as reas de Geografia, Histria e Antropologia. Contudo, apesar do carter interdisciplinar que esta cincia possui, a realidade atual que a maioria dos professores em sala de aula no foram devidamente capacitados, durante o perodo de formao acadmica, para ministrar contedos de Astronomia nos atuais Ensinos Fundamental e Mdio. Neste trabalho, discutiremos de maneira ampla, num primeiro momento, a realidade do atual ensino de cincias praticado no Estado da Bahia, apontando por dependncia administrativa, o crescimento e a reduo do nmero de escolas, da taxa de analfabetismo por faixa etria, da escolarizao, do atendimento, da aprovao, reprovao e abandono, de equipamentos e laboratrios e o grau de formao dos nossos atuais professores em pleno exerccio de atividade docente. Num segundo momento, discutiremos o papel do Observatrio Astronmico Antares/UEFS dentro desse contexto, ou seja, suas aes implementadas ao longo dos ltimos anos e em particular, o recente projeto de extenso Ensino e Difuso de Astronomia, financiado pela Fundao Vitae, que procura traduzir no ldico, no brincar de cincias, um espao pedaggico para aprendizagens mltiplas. Neste, o papel do professor multiplicador associado ao laboratrio de kits didticos, de fcil construo e manipulao (alguns dos quais sero mostrados), perfazem os principais veculos para o desenvolvimento de conhecimentos, atitudes, habilidades e valores que preparam os nossos alunos para a carreira tcnico-cientfica e para sua participao crtica e criativa na Sociedade.

Martin, V. A. F.; Poppe, P. C. R.; Orrico, A. C. P.; Pereira, M. G.

2003-08-01

131

Estudiar las redes sociales: Aportes y perspectivas para las  

E-print Network

Estudiar las redes sociales: Aportes y perspectivas para las ciencias sociales Claire Bidart LEST muchas razones en interesarse en las redes socia- les. Estos sistemas relacionales construyen lazos entre estructuracio- nes, sus dinmicas. Transversales a los grupos y a las estructuras sociales glo- bales, las redes

Paris-Sud XI, Universit de

132

Reconocimiento robusto de marcadores artificiales para la navegacion de robots  

E-print Network

cambios de escala. Los experimentos demuestran que nuestra soluci´on es r´apida y muy robusta incluso en Introducci´on Dentro del campo de investigaci´on dedicado a la navegaci´on de robots, son mu- chos los experimentos. 2 Histogramas polares Los histogramas polares son definidos como un medio para comparar s

Escolano, Francisco

133

actuar en el Sur y para el Sur  

E-print Network

Pginas 06-07 Recursos para la investigacin El IRD en 2013 Investigaciones de excelencia La Agencia desarrollo. As, las investigaciones sobre el cambio climtico, la gestin de los recursos, la biodiversidad lado, de una progresin cuanti- tativa y cualitativa de las publicaciones del IRD y la tasa de copu

134

CHAMADA PARA APRESENTAO DE PROPOSTAS Programa Santander TOP USA MASSACHUSETSS  

E-print Network

CHAMADA PARA APRESENTAO DE PROPOSTAS Programa Santander TOP USA MASSACHUSETSS O Diretor de Relaes Internacionais da Universidade Federal de Minas Gerais, Prof. Eduardo Viana Vargas, no uso de suas EUA, no mbito do Programa Santander TOP USA MASSACHUSSETSS, gerenciado UNICAMP conforme

Chaimowicz, Luiz

135

Acerca del Centro para la Salud Mundial del NCI  

Cancer.gov

El Centro para la Salud Mundial (CGH) coordina y fija las prioridades en las actividades que lleva a cabo el Instituto Nacional del Cncer a nivel mundial. Su objetivo es avanzar la investigacin mundial del cncer y reducir las muertes causadas por esta enfermedad.

136

Sistemas de ayuda inteligente para entornos informticos 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 utilizacin de entornos informticos complejos. Habitualmente la ayuda tiene como nico fin la mejora del rendimiento del usuario, pero nosotros creemos que dicha asistencia debe tener tambin un propsito educativo. Si el usuario mejora su conocimiento sobre la aplicacin

Baltasar Fernndez Manjn

2001-01-01

137

Propuestas para la formacin de conceptos en informtica  

Microsoft Academic Search

Las tecnologas de la informtica (TI) imponen poner en prctica estrategias comunicativas y educativas para establecer nuevas formas de enseanza y aprendizaje. La enseanza-aprendizaje de la Informtica es una problemtica actual. En que es necesario estudiarla, no son muchos los que se disgregan; pero en qu y cmo ensear, si existen grandes divergencias de criterios y enfoques. En este trabajo

Dora Mercedes Prez Mok; Idalmis Urgells Castillo

2011-01-01

138

ELABORACION DE ALGORITMOS DE PRUEBA PARA RELES DE PROTECCION  

E-print Network

protección de naturaleza electrónica digital; estos mismos, para su control periódico requieren de pruebas nature; these same ones, for their periodic control require of tests with the object of corroborating with the equipment PULSAR. 1. INTRODUCCION La continuidad y la calidad del servicio son dos requisitos íntimamente

Boyer, Edmond

139

Para-acetabular periarthritis calcarea: Its radiographic manifestations  

Microsoft Academic Search

On retrospective reviews of radiographs, periarthritis calcarea was distinguished from os acetabula by interval radiographic progression and regression. Among 59 men and 51 women, there were 137 instances of para-acetabular calcifications and ossifications, which were morphologically classified as 58 discrete, 58 amorphous, and 21 segmented types. Correlations with other radiographic abnormalities, symptoms, signs, and laboratory abnormalities were sought, but not

Akira Kawashima; Sadayuki Murayama; Toshiyuki Ohuchida; Walter J. Russell

1988-01-01

140

Una Arquitectura para una Herramienta de Patrones de Diseo  

E-print Network

Una Arquitectura para una Herramienta de Patrones de Diseo Jos Sez Martnez1 , Jess Garca herramientas es necesario disponer de una arquitectura flexible que permita manipularlos eficientemente. Este trabajo presenta una arquitectura, basada a su vez en patrones, diseada con este fin y describe una

Molina, Jess Garca

141

Para-[18F]-fluorohippurate [ [18F]-PFH  

E-print Network

are evaluating the use of dynamic SPECT or positron emission tomography (PET) to assess kidney function to evaluate kidney function and perform renography with PET, para-18F-fluorohippurate ([18F]-PFH), a renal emission tomography (PET) Source of signal / contrast: 18F Activation: No Studies: In vitro Rodents

Levin, Judith G.

142

IMAGEN TRIDIMENSIONAL DE SUSTRATOS BIODEGRADABLES PARA SOPORTE CELULAR  

Microsoft Academic Search

En la ltima dcada se ha despertado un gran inters en investigar y desarr ollar biomateriales con propiedades ptimas para la reparacin y regeneracin de tejidos 1. Idealmente, el objetivo es obtener una estructura extracelular que, despus de proporcionar soporte inicial a las clulas, se reabsorba durante la regeneracin del t ejido y finalmente sea remplazada completamente sin perjuicio o

Leoncio Garrido

143

Recursos financieros Familias confan en varios recursos para pagar costos  

E-print Network

Recursos financieros Familias confían en varios recursos para pagar costos universitarios. Cuando Recursos personales que ya tienen Recursos financieros que pueden buscar Las fechas de vencimiento de la contribuido tu familia ha este fondo? Recursos financieros que tú puedes buscar Llenar la solicitud por ayuda

144

Ambiente para la Captura y Administracin de Versiones de Modelos  

Microsoft Academic Search

El proceso de desarrollo de modelos para la gestin, investigacin, produccin, etc., en general involucra actividades creativas, que frecuentemente son poco estructuradas, es decir, no existe un flujo de trabajo definido previamente. Durante este proceso se genera un gran nmero de modelos de distinto nivel de abstraccin del objeto que se desarrolla, el cual puede consistir en un sistema de

Diego Snchez Schenone; Silvio Gonnet; Horacio Leone

145

Analyzing and Visualizing Cosmological Simulations with ParaView  

SciTech Connect

The advent of large cosmological sky surveys - ushering in the era of precision cosmology - has been accompanied by ever larger cosmological simulations. The analysis of these simulations, which currently encompass tens of billions of particles and up to a trillion particles in the near future, is often as daunting as carrying out the simulations in the first place. Therefore, the development of very efficient analysis tools combining qualitative and quantitative capabilities is a matter of some urgency. In this paper, we introduce new analysis features implemented within ParaView, a fully parallel, open-source visualization toolkit, to analyze large N-body simulations. A major aspect of ParaView is that it can live and operate on the same machines and utilize the same parallel power as the simulation codes themselves. In addition, data movement is in a serious bottleneck now and will become even more of an issue in the future; an interactive visualization and analysis tool that can handle data in situ is fast becoming essential. The new features in ParaView include particle readers and a very efficient halo finder that identifies friends-of-friends halos and determines common halo properties, including spherical overdensity properties. In combination with many other functionalities already existing within ParaView, such as histogram routines or interfaces to programming languages like Python, this enhanced version enables fast, interactive, and convenient analyses of large cosmological simulations. In addition, development paths are available for future extensions.

Woodring, Jonathan [Los Alamos National Laboratory (LANL); Heitmann, Katrin [ORNL; Ahrens, James P [ORNL; Fasel, Patricia [Los Alamos National Laboratory (LANL); Hsu, Chung-Hsing [ORNL; Habib, Salman [ORNL; Pope, Adrian [Los Alamos National Laboratory (LANL)

2011-01-01

146

Modelo para la Integracin de Tecnologas en Educacin Superior  

Microsoft Academic Search

Abstract En este trabajo se discute un modelo para la incorporacinde tecnologas en educacin superior. Este modelo surge a partir de un proyecto de investigacinque est siendo desarrollado en conjunto por investigadores de la Universidad Nacional de La Pampa (Argentina) y de la Universidad de Illinois (USA). La colaboracin interdisciplinaria de docentes e investigadorescon experiencia en las reas de e-learning

Pedro A. Willging; Norma I. Scagnoli

147

EL APORTE DE LA NEUROCIENCIA PARA LA FORMACIN DOCENTE  

Microsoft Academic Search

Resumen: El siguiente artculo se propone, a partir del anlisis de un proceso de investigacin sobre el rea pedaggica en los planes de formacin docente, realizar una invitacin a la incorporacin del estudio del cerebro humano, como eje dentro de la formacin profesional para el ejercicio docente. La capacidad de educabilidad propia de los seres humanos tiene su explicacin sobre

Susan Francis Salazar

2005-01-01

148

Terapias adyuvantes y neoadyuvantes para el cncer de seno  

Cancer.gov

Hoja informativa que explica las terapias adyuvantes (tratamiento que se administra adems de la terapia primaria para aumentar la posibilidad de supervivencia a largo plazo) y las neoadyuvantes (terapia que se administra antes de la terapia principal). Contiene informacin sobre los efectos secundarios y sobre los riesgos y beneficios de estas terapias.

149

Marvin, rob construtor para competio em robtica mvel  

Microsoft Academic Search

renatohsp@gmail .com Resumo: Este artigo sobre a construo do rob autnomo Marvin o Construtor, que foi construdo para participar da IV Competio IEEE Brasileira de Rob. A tarefa consiste em empilhar blocos em uma rea predeterminada em um menor tempo possvel, ganha a torre mais alta. O rob, construdo por alunos do Instituto Tecnolgico de Aeronutica (ITA), foi construdo

Andr Martin Narciso; Carlos Augusto; Bentes da Silva; Jackson Paul Matsuura

150

O JORNAL ESCOLAR: INSTRUMENTO PARA A FORMAO CRTICA E CIDAD  

Microsoft Academic Search

RESUMO: Neste relato de pesquisa, pretendo analisar a viabilidade de se trabalhar, na escola, com a produo do jornal escolar como recurso para mobilizar uma srie de aes visando promoo, no aluno, da conscincia crtica dos usos da linguagem no mundo e da sua formao enquanto ser participativo e agente em questes que lhe dizem respeito dentro e fora

Rosana Cristina DA CUNHA

151

Algoritmo genetico para o problema de rotas de cobertura multiveiculo  

E-print Network

Algoritmo genetico para o problema de rotas de cobertura multiveiculo Washington Alves dec~oes subotimas s~ao obtidas aplicando-se duas propostas de algoritmo genetico (AG), os quais geram rotas de tamanho menor possivel. Palavras-chave: Programac~ao inteira e combinatoria, algoritmo genetico

Gomes, Francisco A. M.

152

Creciendo Juntos Plan de la Universidad de Columbia para  

E-print Network

proyecto de reubicación y reconstrucción de utilidades para sustituir alcantarillado y tuberías de agua y calles 129th y 125th a un ya existente regulador del alcantarillado en la avenida 12th. Columbia adjudicó

Hone, James

153

Anise oil as para-methoxyamphetamine (PMA) precursor  

Microsoft Academic Search

These days, MDMA is one of the most popular drugs of abuse. Due to its illegality, MDMA and its chemical precursors are watched by governmental organizations in many countries. To avoid conflicts with legal instances, underground chemists have tried to market several new unregulated amphetamine analogues, such as 4-MTA. Para-methoxyamphetamine (PMA), on the other hand, is regulated by law but

Dieter Waumans; Nol Bruneel; Jan Tytgat

2003-01-01

154

ACUTE TOXICITY OF PARA-NONYLPHENOL TO SALTWATER ANIMALS  

EPA Science Inventory

?para-Nonylphenol (PNP), a mixture of alkylphenols used in producing nonionic surfactants, is distributed widely in surface waters and aquatic sediments, where it can affect saltwater species. This article describes a database for acute toxicity of PNP derived for calculating a n...

155

UN ESQUEMA ADAPTATIVO PARA LA COMPRESION DE IMAGENES  

E-print Network

articulo de Amat, Ar`andiga, Cohen, Donat, Garcia y von Oehsen titulado "Data compresion with ENOUN ESQUEMA ADAPTATIVO PARA LA COMPRESION DE IMAGENES En la era de la comunicacion en la que la compresion de imagenes. Con compresion nos referimos a tener una version de la foto original

Amat, Sergio

156

Subastando la Energa para Clientes Regulados: Un Anlisis de Equilibrio  

Microsoft Academic Search

La reciente liberalizacin del mercado de generacin elctrica para clientes regulados autoriza a las empresas distribuidoras a contratar energa a precios que pueden ser superiores al precio nudo fijado por el regulador, traspasndolos ntegramente a sus consumidores. Motivado en esta reforma legal, este artculo analiza el equilibrio que resulta de una subasta hipottica en que una empresa distribuidora contratara su

Francisco Caravia; Eduardo Saavedra

2005-01-01

157

Para lle l Support Vector Mach ines: The Cascade SVM  

E-print Network

Para lle l Support Vector Mach ines: The Cascade SVM Hans Peter Graf, Eric Cosatto, Leon Bottou, leonb, igord, vlad}@neclabs.com Abstract We describe an algorithm for support vector machines (SVM in a `Cascade' of SVMs, until the global optimum is reached. The Cascade SVM can be spread over multiple

Bottou, Lon

158

LIMITAES LOGSTICAS PARA EXPORTAO: O CASO DOS PRODUTOS LCTEOS BRASILEIROS  

Microsoft Academic Search

O propsito desta pesquisa avaliar a estrutura do agribusiness do leite no Brasil, identificando as principais limitaes logsticas para exportao. Especificamente pretende identificar as principais empresas exportadoras de produtos lcteos, os produtos mais exportados e os pases de destino; relatar as maneiras mais freqentes de insero dos produtos no mercado externo; e mencionar as estruturas fsicas utilizadas pelas empresas

Adriano Abreu Rezende; Antonio Carlos dos Santos

2008-01-01

159

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

160

Tcnicas grupales para identificacin de valores en estudiantes de estomatologa  

Microsoft Academic Search

Se realiz un estudio descriptivo transversal en el Centro Universitario Municipal Julio A. Mella de Guantnamo, curso escolar 2010-2011, con el objetivo de identificar los valores en los estudiantes de primer ao de la carrera de Estomatologa a travs de tcnicas grupales. El universo de estudio 19 estudiantes. Se utilizaron tres tcnicas grupales. La primera para aumentar el entendimiento y

Nivia Ernestina Snchez Fernndez

2011-01-01

161

NCI Anuncia Contribuciones para Incrementar Acceso de Minoras a Informacin sobre el Cncer  

Cancer.gov

El Instituto Nacional del Cncer (NCI) anunci este mes una variedad de contribuciones que totalizan casi 1 milln de dlares para ayudar a desarrollar la investigacin y programas para comprender y finalmente romper la Divisin Digital que existe en muchas poblaciones minoritarias para el acceso y uso de la informacin sobre el cncer disponible en la Internet. Las contribuciones son un esfuerzo del Servicio de Informacin sobre el Cncer (CIS), dependiente de la NCI, para trabajar con grupos y organizaciones regionales para el control del cncer para probar estrategias destinadas a aumentar las comunicaciones sobre el cncer en comunidades deficientemente atendidas

162

Zoneamento de riscos climticos para a cultura de milho na Regio Centro-Oeste do Brasil e para o estado de Minas Gerais Climatic risks zoning for maize production in West-Center Region and in Minas Gerais state, Brazil  

Microsoft Academic Search

Resumo - Para a cultura de milho, a gua um fator limitante, principalmente, na fase de germinao e nos perodos de florao e enchimento de gros. Desta forma, conhecer os elementos climticos uma estratgia para definir manejos que possibilitem minimizar riscos climticos, contribuindo para melhorar a poltica de alocao de recursos para crdito agrcola e para o aumento

Luiz Marcelo Aguiar Sans; Eduardo Delgado Assad; Daniel Pereira Guimares; Gisela Avellar

2001-01-01

163

Um satlite brasileiro para observao do dimetro solar  

NASA Astrophysics Data System (ADS)

Propomos uma misso espacial para medir a forma e o dimetro solar com o objetivo de ajudar a determinar o potencial gravitacional do Sol e a sua rotao com preciso, testar modelos tericos de variao de energia e pela primeira vez medir os modos g de oscilao. As observaes sero obtidas atravs do instrumento denominado APT (Astrometric and Photometric Telescope) descrito por Kuhn(1983). A sensibilidade do instrumento de 0,2 mas em 27 dias para as observaes do dimetro solar feitas a cada minuto. Esta uma misso de trs anos de durao e pode complementar as medidas que sero feitas pelo satlite PICARD (a ser lanado em 2007). Outros parmetros fsicos podem ser obtidos com as mesmas imagens o que certamente interessar comunidade de fsica solar. Um primeiro contato foi realizado com a agncia espacial brasileira que pretende lanar um satlite cientfico a cada dois anos.

Emilio, M.; Leister, N. V.; Benevides Soares, P.; Teixeira, R.; Kuhn, J.

2003-08-01

164

Para-Sasakian geometry in thermodynamic fluctuation theory  

NASA Astrophysics Data System (ADS)

In this work we tie concepts derived from statistical mechanics, information theory and contact Riemannian geometry within a single consistent formalism for thermodynamic fluctuation theory. We derive the concrete relations characterizing the geometry of the thermodynamic phase space stemming from the relative entropy and the FisherRao information matrix. In particular, we show that the thermodynamic phase space is endowed with a natural para-contact pseudo-Riemannian structure derived from a statistical moment expansion which is para-Sasaki and ?-Einstein. Moreover, we prove that such manifold is locally isomorphic to the hyperbolic Heisenberg group. In this way we show that the hyperbolic geometry and the Heisenberg commutation relations on the phase space naturally emerge from classical statistical mechanics. Finally, we argue on the possible implications of our results.

Bravetti, A.; Lopez-Monsalvo, C. S.

2015-03-01

165

ANEXO DELIBERAO 01/2010 AUTORIZAO PARA PUBLICAO DE  

E-print Network

a publicar na rede mundial de computadores (Internet), na Biblioteca virtual da PUC-Rio, entendendo-se os certificação da obra. 2 [ ] AUTORIZO a disponibilização completa a partir de 01 (um) ano após a data da, agradecimentos, resumo, sumário. Entendo que uma nova extensão por mais 01 (um) ano para a publicação digital só

Rodriguez, Noemi

166

The rotational excitation of methanol by para-hydrogen  

Microsoft Academic Search

In this paper, we present the results of calculations of cross-sections and rate coefficients for rotationally inelastic transitions in methanol (CH3OH), in its ground torsional state, induced by collisions with para-H2 in its ground rotational state. The interaction potential was calculated by means of many-body perturbation theory, and the corresponding cross-sections computed using the coupled states approximation to the Schrdinger

J. T. Pottage; D. R. Flower; Stephen L. Davis

2004-01-01

167

Ultrafast photogeneration mechanisms of triplet states in para-hexaphenyl  

Microsoft Academic Search

We present femtosecond pump-probe measurements, both conventional and electric field-assisted, on organic light-emitting devices based on para-hexaphenyl. The dominant triplet exciton generation mechanism is assigned to nongeminate bimolecular recombination of photogenerated, spin-12 polarons. This process is active within a few hundred femtoseconds after photoexcitation and involves about 20% of the initially excited states. At higher photoexcitation densities, we observe an

C. Zenz; G. Cerullo; G. Lanzani; W. Graupner; F. Meghdadi; G. Leising; S. de Silvestri

1999-01-01

168

arquivo Proposta de regras e tabela para progresso funcional  

E-print Network

reconhecidos publicamente (arxiv.org, por exemplo). Livros - Pontuam-se livros e capítulos de livros por artigos e livros pontuam por obra. Nesse caso, aceita-se o comprovante de emissão de parecer emitido pelo editor do jornal, revista ou livro. Assessoria ad-hoc para órgãos de fomento pontuam por emissão de

Floeter, Sergio Ricardo

169

Linguagens para Programac~ao Paralela October 26, 2010  

E-print Network

estruturas de dados Linguagens para Programa¸c~ao Paralela #12;flat data-parallelism: HPF/Fortran90 opera 1.0 to each element of A A = SQRT(A) ! Computes square root of each element of A L = A .EQ. B ! Sets¸c~ao Paralela #12;Exemplo F77 C diferen¸cas finitas program f77_finite_diff real X(100,100), New(100,100) do i

Rodriguez, Noemi

170

Linguagens para Programac~ao Paralela November 26, 2009  

E-print Network

estruturas de dados Linguagens para Programa¸c~ao Paralela #12;flat data-parallelism: HPF/Fortran90 opera 1.0 to each element of A A = SQRT(A) ! Computes square root of each element of A L = A .EQ. B ! Sets¸c~ao Paralela #12;Exemplo F77 C diferen¸cas finitas program f77_finite_diff real X(100,100), New(100,100) do i

Rodriguez, Noemi

171

Relativistic treatment of ortho-para-H2 transitions  

NASA Astrophysics Data System (ADS)

The rate for radiative decay from ortho- to para-H2 is calculated using the quantum electrodynamical method of Feinberg and Sucher (1971). The calculation is greatly simplified by switching to the dipole length form while the fields are still second quantized. The rate, about 10 to the -12th/a, differs only slightly from that calculated by Raich and Good (1964) and is small enough to be neglected even in interstellar space.

Dodelson, Scott

1986-09-01

172

ACOR hibrido con multiples colonias para problemas de optimizacion continua  

E-print Network

tiempo. Este tipo de algo- ritmo se conoce com´unmente como un m´etodo multi- colonia. El objetivo de la este tipo de algoritmos hacia un m´etodo multi-colonia para incrementar la capacidad de ex- ploraci, y los m´etodos de BL utilizados, SW y Simplex. En la Secci´on IV se ex- plica como se hace la

Granada, Universidad de

173

Uma simulao do QuicktimeVR para mundos poligonais  

E-print Network

a tecnologia de image-based rendering para realidade virtual. Essa abordagem consiste em se obter um número de ressaltar que a tecnologia de image-based rendering se propõe a reconstruir visões do ambiente e não o ambiente propriamente dito. #12;3 Essa tecnologia no entanto é relativamente nova e muito ainda há que ser

174

Nuclear Quadrupole Resonance Zeeman Study of paraChlorophenol  

Microsoft Academic Search

The major field gradient directions for Cl in para-chlorophenol as determined by NQR and x-ray diffraction are compared quantitatively, and found to agree. The minor field gradient directions are examined qualitatively, and are consistent with those predicted on the basis of Cl&sngbnd;C partial double bonding. From a measurement of the field gradient asymmetry parameter &eegr;, the degree of chlorinecarbon double

G. E. Peterson; P. M. Bridenbaugh

1967-01-01

175

Un API para el desarrollo de aplicaciones paralelas 100% Java  

E-print Network

Un API para el desarrollo de aplicaciones paralelas 100% Java Antonio Talón Toledo 5º curso de://www.cs.rit.edu/~ark/pj.shtml) · PJ es software libre que se distribuye bajo los términos de la GNU General Public License (http sobre un cluster #12;· Web del autor: http://www.cs.rit.edu/~ark/pj.shtml · Descargas: binario y fuentes

Giménez, Domingo

176

Edukalibre: una herramienta para la creacion colaborativa de material didactico  

Microsoft Academic Search

El Software Libre, con sus caractersticas y su particular modelo de desarrollo, ha permitido la creacion de un conjunto de metodologas de trabajo en grupo que han resultado satisfactorias en gran cantidad diferentesambitos. En este sentido, el proyecto Edukalibre importa y adapta estas metodologas para ser aplicadas en la creacion y man- tenimiento de documentacion en elambito de la educacion.

Diego Chaparro; Teofllo Romera

177

Consistent Assignment of the Vibrations of Para Disubstituted Benzene Molecules  

NASA Astrophysics Data System (ADS)

When disubstituted benzene molecules are considered the relative position of the substituents must be defined. The three possible forms are ortho-, meta-, and para- where the latter is investigated in this work by consideration of the effect para positioned substituents will have on the vibrational modes. The consistency of the labelling and assignment of the vibrational frequencies of the para disubstituted benzene molecules is investigated in their ground states (S0) and first electronically excited states (S1). The work extends a previously published nomenclature where ring-localised vibrations are compared straightforwardly across different monosubstituted benzene species and given the label Mi. The assignments of the frequencies include previous work but also the calculated wavenumbers for both hydrogenated disubstituted benzenes (-h4) and the deuterated isotopologues (-d4) employing density functional theory (DFT) and time-dependent density functional theory (TDDFT). A. M. Gardner and T. G. Wright, J. Chem. Phys., 135, 114305 (2011) A. M. Gardner, A. M. Green, V. M. Tame-Reyes, V. H. K. Wilton and T. G. Wright, 138, 134303 (2013) A. M. Gardner, A. M. Green, V. M. Tame-Reyes, K. L. Reid, J. A. Davies, V. H. K. Wilton and T. G. Wright, manuscript accepted

Andrejeva, Anna; Lee, Alison Jasmin; Wright, Tim

2014-06-01

178

Determination of the Ratio of Ortho Hydrogen and Para Hydrogen  

NASA Astrophysics Data System (ADS)

The two different quantum states of hydrogen, ortho-hydrogen and para-hydrogen, possess different properties. The accurate determination of the ortho/para ratio in gaseous, liquid and solid state is important both for research needs and for applications in cryogenic engineering, such as H2 production, transport and storage. NMR can determine the ratio1 accurately, but it is cumbersome and often not practical. Cryogenic applications need a simple and reliable method. We report on the development of a thermal conductivity gauge employing a pure metal thin film that serves as both heater and thermometer for the detection of ortho-para hydrogen ratios in the gaseous state. This ratio-meter has been tested and found to have a nearly pressure-independent voltage response over a broad pressure range with a constant current. The thermal conductivity of hydrogen and nitrogen was measured and found to agree quantitatively with published data. The new development will be presented. *Thanks to Larry Phelps, Bill Malphurs, Stephen Wood, David Hernandez. # Supported by NASA Contract NAG3-2750 Ref. 1. D. Zhou, C. M. Edwards, and N. S. Sullivan, Phys. Rev. Lett. 62, 1528 (1989)

Zhou, D.; Ihas, G. G.; Sullivan, N. S.

2003-03-01

179

Aplicacion de PCA y tecnicas bayesianas a la clasificacion de pixeles basada en color  

E-print Network

patrones de las clases de un clasificador bayesiano. El m´etodo se ilustra a trav´es de varios experimentos´agenes y tiene m´ultiples aplicaciones en campos como la detecci´on de defectos de fabricaci´on en procesos la secci´on V se comentar´an varios experimentos realizados y finalmente en la secci´on VI se ver

Granada, Universidad de

180

Escuela Tecnica Superior de Ingenieros de Caminos, Canales y Puertos (Madrid) Mecanica de Medios Continuos  

E-print Network

Escuela T´ecnica Superior de Ingenieros de Caminos, Canales y Puertos (Madrid) Mec´anica de Medios: 70 min. 1.-- Definir el tensor de deformaci´on derecho de Cauchy-Green, explicando su utilidad en mec´anica

Romero, Ignacio

181

TEORIA DEL MATCHING COMPLEJO Y TECNICAS DE RESURGENCIA APLICADAS AL CALCULO DE INVARIANTES  

E-print Network

podemos suponer con =t 0 ? 0. Se trata de calcular \\Deltar 2 ('') = r 2 (+1; '') \\Gamma r 2 (\\Gamma1(x)(1 \\Gamma '' 2 w 2 ) donde f(x) = ?? \\Phi 2\\Phi 2 (t). El c'alculo de \\Deltar 2 ('') viene determinado

Politècnica de Catalunya, Universitat

182

La interpretacion consecutiva: metodologia y tecnicas (Consecutive Interpretation: Methodology and Techniques).  

ERIC Educational Resources Information Center

Describes the purpose and appropriate methodology for various levels of interpreter training, for both consecutive and simultaneous interpretation. The importance of relating the intent of the text to the explicit language forms through which that intent is realized is discussed, and appropriate criteria for evaluation of student interpreters are

Drallny, Ines

1987-01-01

183

LA TECNICA ENDOSCOPICA SECONDO NAKAO NEL TRATTAMENTO DEL DITO A SCATTO  

Microsoft Academic Search

SUMMARY Introduction: Pain at the level of the incision site is the main complain of patients treated for trigger finger. En- doscopic trigger finger release has been introduced in our unit to try to minimize this discomfort. Materials and methods: In this prospetic study 65 patients has been treated for a total of 76 fingers. All the patients has benn

L. PEGOLI; E. CAVALLI; S. DE SANTIS; J. PAJARDI

184

EXAMEN DE ALGOR ITMICA. Segundo Ingeniera 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: t M (n) = n # k=1 n # l=k+1 l los nodos, y c??omo se puede usar el m??etodo de avance r??apido anterior en combinaci??on con el Branch

Giménez, Domingo

185

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

186

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

187

ESCUELA TECNICA SUPERIOR DE INGENIEROS DE TELECOMUNICACI ON PROYECTO FIN DE CARRERA  

E-print Network

tecnolog´ia microstrip utilizados en sat´elites espaciales. Las altos costes computacionales de los m´etodos sistemas de ecuaciones que en ´el aparecen. De es- ta forma el tiempo de ejecuci´on se reduce de forma

Giménez, Domingo

188

Consejos para los efectos de la quimioterapia: Cambios en la memoria  

Cancer.gov

Provee consejos prcticos para las personas que estn reflejando cambios en la memoria durante la quimioterapia. Enumera sntomas que requieren que se comuniquen con su mdico o enfermera e incluye preguntas para su mdico o enfermera.

189

Taller de Ciencia para J ovenes CIMAT, 20-31 julio, 1998  

E-print Network

~nar los cursos de \\Ciencia para J#19;ovenes'' para alumnos de escuelas preparatorias en los a~nos 1997 of Numbers", por L. E. Dickson (The Uni- versity of Chicago Press, 1947). Un cl#19;asico del tema. Todos

Bor, Gil

190

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

E-print Network

2008 para a prtese, a coordenao entre os micro-controladores escravos para fazer medies de diferentes variveis, e a gerao de trajetrias de juntas. Os micro-controladores escravos utilizados so d

Carvalho, Joo Luiz

191

Pitones Birmanas en Florida del Sur: Soporte Cientfico para el Manejo de Especies Invasoras1  

E-print Network

clasificada por la Unin Internacional para la Conservacin como "casi amenazada" en su rango nativo en el Sureste de Asia, debido a su exportacin para el comercio como mascota y a la cacera por su piel. Miles

Mazzotti, Frank

192

El Centro para la Salud Mundial del NCI anuncia las primeras becas de investigacin para apoyar las tecnologas porttiles  

Cancer.gov

El Centro para la Salud Mundial del NCI (CGH) anunci el otorgamiento de subvenciones que apoyarn el desarrollo y la validacin de tecnologas porttiles y de bajo costo. Estas tecnologas tienen el potencial de mejorar la deteccin temprana, el diagnstico y los tratamientos no invasivos o mnimamente invasivos de varios tipos de cncer con una prevalencia particularmente alta en ciertos pases con economas de ingreso bajo y mediano.

193

A study of the valence shell electronic structure and photoionisation dynamics of para-dichlorobenzene and para-bromochlorobenzene  

NASA Astrophysics Data System (ADS)

The valence shell electronic structure and photoionisation dynamics of para-dichlorobenzene and para-bromochlorobenzene have been investigated both experimentally and theoretically. High resolution photoelectron spectra of the outer valence orbitals have been recorded with HeI radiation and the observed structure has been interpreted using calculated ionisation energies and spectral intensities. The theoretical predictions for the single-hole ionic states due to outer valence ionisation agree satisfactorily with the experimental results. Ionisation from the inner valence orbitals is strongly influenced by many-body effects and the with a particular orbital is spread amongst numerous satellites. Some of the photoelectron bands exhibit vibrational progressions and tentative assignments have been proposed. The photoionisation dynamics of the outer valence orbitals of para-dichlorobenzene have been investigated theoretically by using the continuum multiple scattering approach to calculate photoionisation partial cross-sections and photoelectron anisotropy parameters. The results show that ionisation from some of the orbitals is affected by the Cooper minimum associated with the chlorine atom. Synchrotron radiation has been used to record angle resolved photoelectron spectra of the entire valence shell, for photon energies between threshold and 100 eV, and these have allowed the corresponding experimental data to be derived. A comparison between the predicted and measured anisotropy parameters confirms the influence of the Cooper minimum in those orbitals related to the chlorine lone-pairs.

Powis, I.; Trofimov, A. B.; Bodzuk, I. L.; Holland, D. M. P.; Potts, A. W.; Karlsson, L.

2013-03-01

194

Zeeman Effect of the Nuclear Quadrupole Resonance of 81Br in para-Bromophenol and 35Cl in paraChlorophenol  

Microsoft Academic Search

The Zeeman effect of the 81Br and 35Cl nuclear quadrupole resonance has been studied with high precision on single crystals of para-bromophenol and para-chlorophenol, respectively. The results substantially agree with previous x-ray and NQR studies of para-chlorophenol (x-ray studies are known only for this substance). In p-bromophenol, four physically inequivalent sites were found, instead of two, as reported by other

P. Bucci; P. Cecchi; A. Colligiani

1969-01-01

195

Um Framework para a Simulao de Redes Mveis Ad hoc Alexandre Mele & Markus Endler  

E-print Network

Um Framework para a Simulao de Redes Mveis Ad hoc Alexandre Mele & Markus Endler Departamento de, um framework flexvel para a prototipao e simulao de protocolos para redes mveis ad hoc. Depois.11. Palavras-chave Redes Mveis Ad hoc, Framework, Simulao, Roteamento, Prototipao de Protocolos #12;Um

Endler, Markus

196

Fondos del SBIR para el desarrollo de tecnologas de imgenes ms avanzadas  

Cancer.gov

El Programa de Investigacin de la Innovacin de la Pequea Empresa (SBIR), junto con el Programa de Transferencia Tecnolgica para la Pequea Empresa (STTR), son los motores del NCI para la creacin y comercializacin de nuevas tecnologas para prevenir, diagnosticar y tratar el cncer.

197

Notas para un curso de introduccion a la Teoria de Numeros  

E-print Network

´i inicialmente para acompa~nar los cursos de "Ciencia para J´ovenes" para alumnos de escuelas preparatorias en traducido al espa~nol. "Modern Elementry Theory of Numbers", por L. E. Dickson (The Univer- sity of Chicago

Bor, Gil

198

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

199

Propuesta de autorizacin para entornos Grid basada en la arquitectura NAS-SAML  

E-print Network

Propuesta de autorizacin para entornos Grid basada en la arquitectura NAS-SAML Manuel Snchez1 que acceden a sus recursos. Se han propuesto varias arquitecturas de autorizacin para este tipo de como un recurso ms. La arquitectura AAA fue diseada para resolver este problema usando diferentes

Snchez Cuenca, Manuel

200

PLANIFICACIN COLABORATIVA Y UBICUA PARA EL APRENDIZAJE DEL DISEO EN EL SISTEMA DOMOSIM-TPC  

Microsoft Academic Search

Resumen En este artculo, 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 problemtica asociada al aprendizaje del diseo domtico. Para este caso de estudio desarrollamos un sistema para el aprendizaje colaborativo basado en los paradigmas de interaccin asistida

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

201

Aplicacin del Teorema de Nekhorochev para tiempos de estabilidad en Mecnica Celeste  

Microsoft Academic Search

En Mecnica Celeste, uno de los problemas centrales consiste en la determinacin de los tiempos de estabilidad. El teorema de Nekhorochev proporciona un mtodo para dicho estudio, para un sistema determinado por un hamiltoniano descripto en las variables accin-ngulo. El trabajo consiste en la acotacin tanto del potencial perturbador y de la matriz hessiana del hamiltoniano integrable para determinar luego

O. Miloni; J. Nez; A. Brunini

1999-01-01

202

Accesibilidad para personas con debilidad auditiva Mac OS X Snow Leopard  

E-print Network

Accesibilidad para personas con debilidad auditiva Mac OS X Snow Leopard ASIC 18 de noviembre de LEOPARD MAC OS X Snow Leopard ofrece algunas ayudas para personas sordas o con problemas para escuchar Snow Leopard ASIC 18 de noviembre de 2010 Pg. 2 de 14 1. Recomendaciones previas frente al uso del

Fernndez de Crdoba, Pedro

203

Accesibilidad para personas con debilidad motriz Mac Os X Snow Leopard  

E-print Network

Accesibilidad para personas con debilidad motriz Mac Os X Snow Leopard ASIC 18 de noviembre de LEOPARD Si usted tiene problemas para utilizar el teclado, el ratn o el trackpad de su porttil, puede para personas con debilidad motriz Mac Os X Snow Leopard ASIC 18 de noviembre de 2010 Pg. 2 de 9

Fernndez de Crdoba, Pedro

204

ParA resolvase catalyzes site-specific excision of DNA from the Arabidopsis genome  

Technology Transfer Automated Retrieval System (TEKTRAN)

The small serine resolvase ParA from bacterial plasmids RK2 and RP4 catalyzes the recombination of two identical 133 bp recombination sites known as MRS. Previously, we reported that ParA is active in the fission yeast Schizosaccharomyces pombe. In this work, the parA recombinase gene was placed un...

205

Females prefer carotenoid colored males as mates in the pentamorphic livebearing fish, Poecilia parae  

Microsoft Academic Search

The first results of female preference and chosen male mating success in a new model organism, the pentamorphic livebearing fish, Poecilia parae, are presented. Poecilia parae is a relative of the guppy, P. reticulata, and is assumed to have similar reproductive behavior. We tested the hypothesis that P. parae females, like female guppies, prefer caretenoid colored males as mates. Here

Godfrey R. Bourne; Felix Breden; Teresa C. Allen

2003-01-01

206

REDES TRANSACIONALES: APORTES PARA LA LECTURA SOBRE EL CASO AMERICANO DE LA ALIANZA SOCIAL CONTINENTAL  

E-print Network

del rea de Libre Comercio para las Amricas (ALCA) desarrollada por un novedoso actor transnacional y recomposicin sindical a nivel internacional. Estas cuestiones resultan cardinales para comprender el relieve al proyecto del rea de Libre Comercio para las Amricas (ALCA) en el continente americano. Con este

Paris-Sud XI, Universit de

207

ANLISIS DE RBOL 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 fabricacin y los productos se monitorean constantemente incluso cuando estn en su fase de diseo para asegurar la calidad que los clientes exigen. Los costos generados por reparaciones en las instalaciones del cliente o por la salida de

Rosalva Martnez Aguilar; Jos Francisco Rodrguez Silva

2007-01-01

208

Buenas prcticas para la digitalizacin de documentos destinados al repositorio Digital.CSIC  

E-print Network

prcticas para la digitalizacin de documentos en el repositorio institucional Digital.CSIC: digitalizacin1 Buenas prcticas para la digitalizacin de documentos destinados al repositorio Digital instituciones culturales disponen de escneres de mesa para uso interno del personal o de autoservicio, como

209

Cmo cuidarse mientras usted cuida a su ser querido: Apoyo para personas que cuidan a un ser querido con cncer  

Cancer.gov

Un folleto para las personas responsables del cuidado de un ser querido que recibe tratamiento para el cncer. Ofrece informacin prctica y apoyo para ayudarlas a sobrellevar este perodo difcil y estresante.

210

Amazon Land Wars in the South of Para  

NASA Technical Reports Server (NTRS)

The South of Para, located in the heart of the Brazilian Amazon, has become notorious for violent land struggle. Although land conflict has a long history in Brazil, and today impacts many parts of the country, violence is most severe and persistent here. The purpose of this article is to examine why. Specifically, we consider how a particular Amazonian place, the so-called South of Para has come to be known as Brazil's most dangerous badland. We begin by considering the predominant literature, which attributes land conflict to the frontier expansion process with intensified struggle emerging in the face of rising property values and demand for private property associated with capitalist development. From this discussion, we distill a concept of the frontier, based on notions of property rights evolution and locational rents. We then empirically test the persistence of place-based violence in the region, and assess the frontier movement through an analysis of transportation costs. The findings from the analyses indicate that the prevalent theorization of frontier violence in Amazonia does little to explain its persistent and pervasive nature in the South of Para. To fill this gap in understanding, we develop an explanation based the geographic conception of place, and we use contentious politics theory heuristically to elucidate the ways in which general processes interact with place specific history to engender a landscape of violence. In so doing, we focus on environmental, cognitive, and relational mechanisms (and implicated structures), and attempt to deploy them in an explanatory framework that allows direct observation of the accumulating layers of the region's tragic history. We end by placing our discussion within a political ecological context, and consider the implications of the Amazon Land War for the environment.

Simmons, Cynthia S.; Walker, Robert T.; Arima, Eugenio Y.; Aldrich, Stephen P.; Caldas, Marcellus M.

2007-01-01

211

ORTHO-PARA SELECTION RULES IN THE GAS-PHASE CHEMISTRY OF INTERSTELLAR AMMONIA  

SciTech Connect

The ortho-para chemistry of ammonia in the cold interstellar medium is investigated using a gas-phase chemical network. Branching ratios for the primary reaction chain involved in the formation and destruction of ortho- and para-NH{sub 3} were derived using angular momentum rules based on the conservation of the nuclear spin. We show that the 'anomalous' ortho-to-para ratio of ammonia ({approx}0.7) observed in various interstellar regions is in fact consistent with nuclear spin selection rules in a para-enriched H{sub 2} gas. This ratio is found to be independent of temperature in the range 5-30 K. We also predict an ortho-to-para ratio of {approx}2.3 for NH{sub 2}. We conclude that a low ortho-to-para ratio of H{sub 2} naturally drives the ortho-to-para ratios of nitrogen hydrides below the statistical values.

Faure, A.; Hily-Blant, P.; Le Gal, R.; Rist, C. [UJF-Grenoble 1/CNRS-INSU, Institut de Planetologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, Grenoble F-38041 (France); Pineau des Forets, G., E-mail: afaure@obs.ujf-grenoble.fr [Institut d'Astrophysique Spatiale, Universite Paris-Orsay and CNRS, Orsay (France)

2013-06-10

212

Do Well, Be Well with Diabetes 2013 1 Formulario de Conclusin para Personas con Diabetes Formulario de Conclusin para Personas con Diabetes 201  

E-print Network

Do Well, Be Well with Diabetes ­ 2013 1 Formulario de Conclusión para Personas con Diabetes Formulario de Conclusión para Personas con Diabetes ­ 201 Si usted NO TIENE diabetes, por favor NO LLENE este últimos cuatro números de mi número telefónico son __ __ __ __. C. Marque todas las clases sobre diabetes

213

Do Well, Be Well with Diabetes 2013 1 Formulario de Registro para Personas con Diabetes Formulario de Registro para Personas con Diabetes 2013  

E-print Network

Do Well, Be Well with Diabetes ­ 2013 1 Formulario de Registro para Personas con Diabetes Formulario de Registro para Personas con Diabetes ­ 2013 Si usted NO TIENE diabetes, por favor NO LLENE este sobre diabetes en el Condado de _______________. D. El código postal en mi casa es __ __ __ __ __. E

214

Una propuesta para el dise~no de m'etodos de Jacobi unilaterales por bloques para el Problema Sim'etrico de Valores Propios \\Lambda  

E-print Network

los tiempos de ejecuci'on te'oricos con los de un m'etodo bilateral por bloques. Palabras clave: m'etodosUna propuesta para el dise~no de m'etodos de Jacobi unilaterales por bloques para el Problema Sim'etrico de Valores Propios. Se estudian dos m'etodos secuenciales y sus versiones paralelas, y se comparan

Giménez, Domingo

215

The infrared dielectric function of solid para-hydrogen  

E-print Network

We report laboratory measurements of the absorption coefficient of solid para-H2, within the wavelength range from 1 to 16.7 micron, at high spectral resolution. In addition to the narrow rovibrational lines of H2 which are familiar from gas phase spectroscopy, the data manifest double transitions and broad phonon branches that are characteristic specifically of hydrogen in the solid phase. These transitions are of interest because they provide a spectral signature which is independent of the impurity content of the matrix. We have used our data, in combination with a model of the ultraviolet absorptions of the H2 molecule, to construct the dielectric function of solid para-H2 over a broad range of frequencies. Our results will be useful in determining the electromagnetic response of small particles of solid hydrogen. The dielectric function makes it clear that pure H2 dust would contribute to IR extinction predominantly by scattering starlight, rather than absorbing it, and the characteristic IR absorption s...

Kettwich, Cassie; Walker, Mark; Tuntsov, Artem

2015-01-01

216

Para-Sexiphenyl Layers Grown On Light Sensitive Polymer Substrates  

NASA Astrophysics Data System (ADS)

In this contribution the deposition of Para-sexiphenyl (PSP) layers on poly (diphenyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate) (PPNB) by Hot Wall Epitaxy (HWE) is reported. It is demonstrated that pre-treating the substrate by UV-illumination induces a clear change in the morphology of the grown PSP films due to the polarity modification of the substrate surface. PPNB surface polarity increases when illuminated by UV via photo-Fries rearrangement. By detailed atomic force microscopy analysis the influence on the growth kinetics by the substrate temperature, deposition time and particularly by the UVtreatment of the substrate was investigated. A high crystalline order of the films is underlined by the observation of growth spirals and terraced islands, providing mono-layer step heights of standing PSP-molecules.

Hernandez-Sosa, G.; Simbrunner, C.; Hfler, T.; Moser, A.; Werzer, O.; Kunert, B.; Trimmel, G.; Kern, W.; Resel, R.; Sitter, H.

217

Photophysics of Isolated Nanostructured Poly(para-phenylenevinylene)  

NASA Astrophysics Data System (ADS)

The photophysics of bulk poly(para-phenylenevinylene) (PPV) films are compared to those of isolated PPV chains incorporated into a self-assembled lyotropic liquid-crystalline matrix ordered at the nanometer scale (nano-PPV). As expected, the optical spectra and the spectral dependence of the photoluminescence (PL)-detected magnetic resonance (PLDMR) show that the nano-PPV structure largely eliminates the interchain charge transfer excitons, allowing only intrachain migration of singlet excitons (SEs). The observed unusual sublinear dependence of the PL on the excitation density in nano-PPV indicates that these SEs are strongly nonradiatively quenched at trapped polarons. A rate-equation model based on this quenching mechanism provides strong evidence that this quenching process is responsible for the polaron PLDMR. *Operated by ISU for the USDOE under Contract W-7405-Eng-82.

List, Emil J. W.; Partee, Jonathan; Shinar, Joseph; Zojer, Egbert; Markart, P.; Gadermaier, Christoph; Leising, Guenther; Smith, R.; Gin, D.; Graupner, Wilhelm

2000-03-01

218

Technique to match mantle and para-aortic fields  

SciTech Connect

A technique is described to match the mantle and para-aortic fields used in treatment of Hodgkin's disease, when the patient is treated alternately in supine and prone position. The approach is based on referencing the field edges to a point close to the vertebral column, where uncontrolled motion is minimal and where accurate matching is particularly important. Fiducial surface points are established in the simulation process to accomplish the objective. Dose distributions have been measured to study the combined effect of divergence differences, changes in body angulation and setup errors. Even with the most careful technique, the use of small cord blocks of 50% transmission is an advisable precaution for the posterior fields.

Lutz, W.R.; Larsen, R.D.

1983-11-01

219

ParaText : scalable text analysis and visualization.  

SciTech Connect

Automated analysis of unstructured text documents (e.g., web pages, newswire articles, research publications, business reports) is a key capability for solving important problems in areas including decision making, risk assessment, social network analysis, intelligence analysis, scholarly research and others. However, as data sizes continue to grow in these areas, scalable processing, modeling, and semantic analysis of text collections becomes essential. In this paper, we present the ParaText text analysis engine, a distributed memory software framework for processing, modeling, and analyzing collections of unstructured text documents. Results on several document collections using hundreds of processors are presented to illustrate the exibility, extensibility, and scalability of the the entire process of text modeling from raw data ingestion to application analysis.

Dunlavy, Daniel M.; Stanton, Eric T.; Shead, Timothy M.

2010-07-01

220

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 radimetros instalados en el IAR. Entre las caractersticas ms importantes del sistema podemos mencionar la posibilidad de conectar cualquiera de las dos antenas a los ``backend" disponibles: analizador espectral de alta resolucin (META II) de 0,05 Hz, autocorrelador de 1008 canales y contnuo. Se incorporan al sistema nuevos sintetizadores de frecuencia implementados con PLL y la moderna tcnica de sntesis digital directa. Por ltimo, el conjunto del sistema es susceptible de ser configurado por las computadoras de adquisicin de datos, supervisadas por otra, que entrega el estado de funcionamiento actual y evita la seleccin de configuraciones incorrectas por parte del usuario.

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

221

Procedimento para utilizar a assinatura do IB no Webmail 1) Acesse a sua conta no webmail;  

E-print Network

1/5 Procedimento para utilizar a assinatura do IB no Webmail 1) Acesse a sua conta no webmail; 2 clique no ícone imagem; 8) Na tela seguinte, digite a seguinte URL da imagem: www.ib.usp.br/webmail/assinatura.jpg A imagem da assinatura do IB será exibida. Clique em OK para voltar para a tela de configuração e salve

Morandini, Andre C.

222

The existence of all three ParaHox genes in the clitellate annelid, Perionyx excavatus  

Microsoft Academic Search

A ParaHox gene cluster is composed of three genes (Gsx, Xlox, and Cdx). It has been proposed that all three ParaHox genes were present in the last common ancestor to the lophotrochozoan protostomes and the deuterostomes and that gene loss event has occurred in the ecdysozoan lineage. In this paper, we report the existence of all three ParaHox genes in

Bum Joon Park; Sung-Jin Cho; Eun Sik Tak; Bo Eun Lee; Soon Cheol Park

2006-01-01

223

Nueva opcin de tratamiento para mujeres jvenes con cncer de seno sensible a las hormonas  

Cancer.gov

Un frmaco usado para el tratamiento del cncer de seno (mama), conocido como exemestano, es ms eficaz que tamoxifeno, un frmaco preventivo de uso comn para el cncer de seno, en la prevencin de la recidiva del cncer de seno en mujeres jvenes que tambin reciben tratamiento posoperativo para suprimir el funcionamiento ovrico. Los resultados de este estudio se presentaron en mujeres que tenan un tipo de cncer de seno en estadio inicial sensible al tratamiento hormonal.

224

Tcnicas de Investigacin y Manejo para la Conservacin de las Tortugas Marinas 199 Tcnicas de Investigacin y Manejo para la Conservacin de las Tortugas Marinas  

E-print Network

instalaciones y que se dispone de suficientes recursos financieros para el mantenimiento. Además deberán considerarse las siguientes advertencias: 1. Los viveros son muy costosos tanto en recursos financieros como

Prestwich, Ken

225

Features of the ancestral bilaterian inferred from Platynereis dumerilii ParaHox genes  

PubMed Central

Background The ParaHox gene cluster is the evolutionary sister to the Hox cluster. Whilst the role of the Hox cluster in patterning the anterior-posterior axis of bilaterian animals is well established, and the organisation of vertebrate Hox clusters is intimately linked to gene regulation, much less is known about the more recently discovered ParaHox cluster. ParaHox gene clustering, and its relationship to expression, has only been described in deuterostomes. Conventional protostome models (Drosophila melanogaster and Caenorhabditis elegans) are secondarily derived with respect to ParaHox genes, suffering gene loss and cluster break-up. Results We provide the first evidence for ParaHox gene clustering from a less-derived protostome animal, the annelid Platynereis dumerilii. Clustering of these genes is thus not a sole preserve of the deuterostome lineage within Bilateria. This protostome ParaHox cluster is not entirely intact however, with Pdu-Cdx being on the opposite end of the same chromosome arm from Pdu-Gsx and Pdu-Xlox. From the genomic sequence around the P. dumerilii ParaHox genes the neighbouring genes are identified, compared with other taxa, and the ancestral arrangement deduced. Conclusion We relate the organisation of the ParaHox genes to their expression, and from comparisons with other taxa hypothesise that a relatively complex pattern of ParaHox gene expression existed in the protostome-deuterostome ancestor, which was secondarily simplified along several invertebrate lineages. Detailed comparisons of the gene content around the ParaHox genes enables the reconstruction of the genome surrounding the ParaHox cluster of the protostome-deuterostome ancestor, which existed over 550 million years ago. PMID:19627570

Hui, Jerome HL; Raible, Florian; Korchagina, Natalia; Dray, Nicolas; Samain, Sylvie; Magdelenat, Ghislaine; Jubin, Claire; Segurens, Batrice; Balavoine, Guillaume; Arendt, Detlev; Ferrier, David EK

2009-01-01

226

DYNA3D/ParaDyn Regression Test Suite Inventory  

SciTech Connect

The following table constitutes an initial assessment of feature coverage across the regression test suite used for DYNA3D and ParaDyn. It documents the regression test suite at the time of production release 10.1 in September 2010. The columns of the table represent groupings of functionalities, e.g., material models. Each problem in the test suite is represented by a row in the table. All features exercised by the problem are denoted by a check mark in the corresponding column. The definition of ''feature'' has not been subdivided to its smallest unit of user input, e.g., algorithmic parameters specific to a particular type of contact surface. This represents a judgment to provide code developers and users a reasonable impression of feature coverage without expanding the width of the table by several multiples. All regression testing is run in parallel, typically with eight processors. Many are strictly regression tests acting as a check that the codes continue to produce adequately repeatable results as development unfolds, compilers change and platforms are replaced. A subset of the tests represents true verification problems that have been checked against analytical or other benchmark solutions. Users are welcomed to submit documented problems for inclusion in the test suite, especially if they are heavily exercising, and dependent upon, features that are currently underrepresented.

Lin, J I

2011-01-25

227

Ab initio dynamics study of poly-para-phenylene vinylene  

NASA Astrophysics Data System (ADS)

We present an ab initio dynamics investigation within a density-functional perturbation theory framework of the properties of the conjugated polymer poly-para-phenylene vinylene (PPV) in both the isolated chain and crystalline states. The calculated results show that for an isolated chain, most of the vibrational modes correspond to experimentally observed modes in crystalline PPV. However, additional hitherto unidentified modes have been observed in experiment and our calculations on crystalline material have allowed us to assign these. We also present the results of calculations of the polarizability and permittivity tensors of the material, which are in reasonable agreement with the typical values for conjugated polymers. Dynamical Born effective charges [S. Baroni, S. de Gironcoli, A. Dal Corso, and P. Giannozzi, Rev. Mod. Phys. 73, 515 (2001)] are calculated and compared with atomic charges obtained from Mulliken population analysis [M. D. Segall, C. J. Pickard, R. Shah, and M. C. Payne, Mol. Phys. 89, 571 (1996)] and we conclude that effective charges are more appropriate for use in the study of the dynamics of the system. Notable differences are found in the infrared-absorption spectra obtained for the isolated chain and crystalline states, which can be attributed to the differences in the crystalline packing effects, which clearly play a key role in influencing the lattice dynamics of PPV.

Zheng, Guang; Clark, S. J.; Tulip, P. R.; Brand, S.; Abram, R. A.

2005-07-01

228

Para-hydrogen induced polarization in heterogeneous hydrogenationreactions  

SciTech Connect

We demonstrate the creation and observation ofpara-hydrogen-induced polarization in heterogeneous hydrogenationreactions. Wilkinson's catalyst, RhCl(PPh3)3, supported on eithermodified silica gel or a polymer, is shown to hydrogenate styrene intoethylbenzene and to produce enhanced spin polarizations, observed throughNMR, when the reaction was performed with H2 gas enriched in the paraspinisomer. Furthermore, gaseous phase para-hydrogenation of propylene topropane with two catalysts, the Wilkinson's catalyst supported onmodified silica gel and Rh(cod)(sulfos) (cod = cycloocta-1,5-diene;sulfos) - O3S(C6H4)CH2C(CH2PPh2)3) supported on silica gel, demonstratesheterogeneous catalytic conversion resulting in large spin polarizations.These experiments serve as a direct verification of the mechanism ofheterogeneous hydrogenation reactions involving immobilized metalcomplexes and can be potentially developed into a practical tool forproducing catalyst-free fluids with highly polarized nuclear spins for abroad range of hyperpolarized NMR and MRI applications.

Koptyug, Igor V.; Kovtunov, Kirill; Burt, Scott R.; Anwar, M.Sabieh; Hilty, Christian; Han, Song-I; Pines, Alexander; Sagdeev, Renad Z.

2007-01-31

229

Quadrupole Approximation for Para-Positronium in Relativistic Schrdinger Theory  

E-print Network

The non-relativistic energy levels of para-positronium are calculated in the quadrupole approximation of the interaction potential. This approximation technique takes into account the anisotropy of the electrostatic electron-positron interaction in the lowest order. The states due to different values of the quantum number $(l_z)$ of angular momentum are found to be no longer degenerate as is the case in the conventional theory. The physical origin of this elimination of the conventional degeneracy may intuitively be attributed to the state-dependent inertial \\emph{broadening} of the rotating charge clouds; the corresponding \\emph{anisotropic} deformation (in the quadrupole approximation) lowers then the negative electrostatic interaction energy. The result of this influence of anisotropy is that the states with $l_z=0$ adopt smaller binding energy whereas the states with maximal value of $|l_z|$ (for fixed principal quantum number $n$) have the largest binding energy within the angular momentum multiplet $(-|l_{z,\\mathrm{max}}| \\le l_z \\le |l_{z,\\mathrm{max}}|)$. This yields a certain kind of electric fine-structure splitting with the splitted RST levels being placed in a relatively narrow band around the (highly degenerated) conventional levels.

M. Mattes; M. Sorg

2011-09-11

230

Vibrational relaxation in jet-cooled para-alkylanilines  

NASA Astrophysics Data System (ADS)

Absorption and fluorescence spectra have been obtained for the 1B2(??*)?1A1 transition of a series of para-alkylanilines cooled in a supersonic free jet. The series consists of all p-n-alkylanilines through n-butyl- as well as p-isopropylaniline and aniline itself. For those members of the series having an alkyl chain length of three or greater, two distinct molecular conformations are found to be populated in the jet with roughly equal likelihood. Spectra of both the extended chain conformation [p-n-(t)-alkylanilines] and the coiled chain conformation [p-n-(g)-alkylanilines] show that two optically active aniline vibrations are largely unaffected by changes in the length and nature of the n-alkyl chain. One of these vibrations (the inversion motion of the -NH2 group) would be expected to be particularly weakly coupled to the torsions and bends of p-alkyl chain. Nonetheless, fluorescence spectra obtained when this vibration is excited in the 1B2 state show that intramolecular vibrational relaxation occurs into the chain modes within a nanosecond.

Powers, D. E.; Hopkins, J. B.; Smalley, R. E.

1980-05-01

231

Para-dichlorobenzene toxicity a review of potential neurotoxic manifestations  

PubMed Central

Background: Para-dichlorobenzene (PDCB) is an active ingredient of mothballs, deodorizers and fumigants. Due to the easy availability of this chemical, there is a considerable risk for accidental or intentional toxic exposure. Recently, multiple cases of PDCB toxicity due to mothball ingestion were reported. PDCB toxicity can affect multiple organ systems including liver, kidneys, skin, lung and the central nervous system (CNS). CNS toxicity often results in leukoencephalopathy and heterogeneous neurological manifestations. Objectives: The objective of this study was to illustrate the clinical presentation, imaging findings, diagnosis and management of PDCB toxicity. Methods: We carried out a literature review of the pharmacological and toxicological properties of PDCB. Conclusions: PDCB and other aromatic hydrocarbons are capable of CNS tissue damage and in promoting functional neurological decline. While very little is currently known about prevalence of PDCB addiction, it cannot be ruled out that its illicit use among young people is under-recognized. The number of cases of PDCB toxicity might also rise due to the increasing industrial and domestic use of this chemical. PMID:24790648

Dubey, Divyanshu; Sharma, Vibhash D.; Pass, Steven E.; Sawhney, Anshudha

2014-01-01

232

Analise de Mecanismos de CAC para Redes ATM Michel Ferreira Abdalla  

E-print Network

Analise de Mecanismos de CAC para Redes ATM Michel Ferreira Abdalla Department of Computer Science~ao em redes ATM. Uma classificac~ao destes mecanismos baseada no principio implicito neles utilizado encontrar em redes ATM, estes mecanismos apre- sentam resultados bastante superestimados para a capaci- dade

Abdalla, Michel Ferreira

233

MiCCS4Mobile Middleware para Comunicao e Coordenao Segura em Redes Ad-hoc  

E-print Network

MiCCS4Mobile Middleware para Comunicao e Coordenao Segura em Redes Ad-hoc com Participantes desenvolvimento de aplicaes mveis. Algumas aplicaes exploram protocolos de redes sem fios e a mobilidade dos dispositivos para aumentar as suas funciona- lidades. A classe de protocolos de redes sem fios com dispositivos

Neves, Nuno

234

Uma Implementac~ao Concorrente de Redes Neurais PCA para Compress~ao de Imagens  

E-print Network

Uma Implementac~ao Concorrente de Redes Neurais PCA para Compress~ao de Imagens Willian Y. Honda1 dados. Considerando uma rede neural que aproxima os resultados da PCA classica, a principal contribuic~ao deste trabalho consiste em apresentar um modelo de implementac~ao concorrente para essa rede. Um estudo

Pereira, Marcone Corra

235

Opciones de ciruga para mujeres con CDIS o con cncer de seno  

Cancer.gov

Contiene informacin sobre los tipos de ciruga de seno, como la operacin para conservar el seno y la mastectoma, y ayuda a las mujeres diagnosticadas con CDIS o con cncer de seno a decidir cul ciruga es la ms conveniente para ellas.

236

MEDIDA DE LA CSF CROMTICA Y ACROMTICA CON MONITORES ORDINARIOS PARA PRCTICAS DE LABORATORIO  

E-print Network

comerciales, de prestaciones inferiores, que presentan problemas para generar estímulos para experimentos distinguir la red de un campo uniforme. La CSF se obtiene como la inversa del contraste global en el espacio imposibilita su uso durante un experimento, por lo que trabajamos con estímulos pre-calculados. MEDIDA El

Escolano, Francisco

237

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO XIV CONCURSO PBLICO PARA PROVIMENTO DE CARGO DE  

E-print Network

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO XIV CONCURSO PBLICO PARA PROVIMENTO DE CARGO DE JUIZ FEDERAL SUBSTITUTO 1 REGIO Edital de Retificao O Desembargador Federal Presidente da Comisso de Concurso do XIV Concurso Pblico para provimento de cargo de Juiz Federal Substituto do Tribunal Regional

Maier, Rudolf Richard

238

CAPACITACIN A LIDERES DE LAS COMUNIDADES RURALES PARA LLEGAR CON EL MENSAJE  

Microsoft Academic Search

Para lograr introducir en nuestras comunidades rurales cualquiera informacin tcnica o participativa debemos de pensar en forma de desarrollo futuro buscando alternativas que propicien una buena capacitacin en este caso para la introduccin de nuevas tcnicas, cultivos, utilizacin de los recursos racionales e introduccin de otros de mejor resultados y hasta hacer de los diferentes productores de comunidades una escuela

Jorge Alfredo Gonzlez Prez

2010-01-01

239

Evaluacin de dos esquemas de inmunizacin para la Evaluacin de dos esquemas de inmunizacin para la Evaluacin de dos esquemas de inmunizacin para la Evaluacin de dos esquemas de inmunizacin para la produccin de sueros produccin de sueros produccin de sueros produccin de sueros hiperinmunes contra hiperinmunes contra hiperinmunes contra hiperinmunes contra Leptospira Leptospira Leptospira Leptospira interrogans interrogans interrogans interrogans  

Microsoft Academic Search

Los antisueros policlonales utilizados para el serotipaje de cepas de Leptospira deben caracterizarse por un alto nivel de aglutininas especficas a un serogrupo o serovar determinado y una baja reactividad cruzada frente al resto de las serovariedades. El presente trabajo se desarroll con el objetivo de evaluar y comparar dos de los esquemas de inmunizacin reportados para la obtencin de

Andrs Gonzlez; Niurka Batista; Manuel Ortz; Vismark Torres; Juan F. Infante; Marta Gonzlez

2002-01-01

240

Planificacin y Lenguaje para la Iniciacin a la Programacin Orientada a Objetos  

Microsoft Academic Search

Resumen La programacin orientada a objetos suele ensearse despus de la procedimental en los planes de estudio actuales. La parte prctica de una asignatura de programacin suele consistir en la realizacin de programas. Elegir un lenguaje para cada paradigma, uno orientado a objetos para ambos o un lenguaje hbrido, presenta diferentes problemas de aprendizaje. Adems, muchos lenguajes comerciales orientados a

Luis Fernndez Muoz; Rosala Pea Ros; J. ngel Velzquez-Iturbide

241

Extensi'on del c'alculo para la Modelizaci'on de Procesos Concurrentes  

E-print Network

casos como para pensar en 'el como recurso expresi­ vo adecuado para la programaci'on, vamos a definir un lenguaje de m'as alto nivel, ALEPH, que posee los recursos expresivos deseables en programaci'on y

Alpuente, María

242

Notas de Aula: Fisica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi  

E-print Network

Notas de Aula: F´isica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi 27 de junho de´ificas nem discutir a biologia por tr´as destas aplica¸c~oes. Esperamos que isso seja estudado em outras problema maior para estudantes de biologia pode ser o tratamento matem´atico. Usaremos novamente o

Caticha, Nestor

243

Arquitectura Multiagente para la Gestin de Informacin de Awareness en Entornos CSCL  

E-print Network

Arquitectura Multiagente para la Gestin de Informacin de Awareness en Entornos CSCL Ivn D razn, este artculo presenta una Arquitectura Multiagentes como alternativa para la gestin de usuario mediante una Arquitectura Multiagente que permite gestionar la informacin de Conciencia Grupal o

Guerrero, Luis

244

Desarrollo y Aplicacin de un ndice de Calidad de Agua para ros en Puerto Rico  

E-print Network

Desarrollo y Aplicacin de un ndice de Calidad de Agua para ros en Puerto Rico por Francisco J en INGENIERA CIVIL UNIVERSIDAD DE PUERTO RICO RECINTO UNIVERSITARIO DE MAYAGEZ 2009 Aprobado por trabajo presenta la elaboracin de un ndice de Calidad de Agua (ICA) para los ros en Puerto Rico. Dicho

Gilbes, Fernando

245

SELEO PRECOCE DE CLONES DE BATATA PARA CARACTERES DO TUBRCULO1  

Microsoft Academic Search

RESUMO - Nos ltimos anos, foi despertado um grande interesse para o pr ocessamento da batata na forma de fritura no Brasil. Visando obteno de culti- vares nacionais que atendam aos padres de qualidade culinria exigidos pelas indstrias de processamento, os programas de melhoramento de batata tm estabelecido estratgias para a reduo de custos e de tempo. Reali- zou-se

GEOVANI BERNARDO AMARO; CSAR AUGUSTO; BRASIL PEREIRA; EDUARDO DE SOUZA LAMBERT; LEITE MARTINS

246

Un test adaptativo informatizado para evaluar el conocimiento de ingls escrito: diseo y comprobaciones psicomtricas  

Microsoft Academic Search

El presente artculo muestra el trabajo desarrollado para disear un test adaptativo informatizado que evala el nivel de conocimientos de ingls escrito en castellano-parlantes. Se describe el proceso se- guido para la elaboracin del banco de tems, la comprobacin de sus propiedades psicomtricas, el ajuste obtenido al modelo logstico de tres parmetros y las principales caractersticas del algoritmo adaptativo. Se

Julio Olea; Francisco Jos Abad; Vicente Ponsoda; M. Carmen Ximnez

2004-01-01

247

Interpoladores Espaciais para Gerao de Superfcies de Densidade Populacional na Amaznia Brasileira: problemas e perspectivas.  

E-print Network

Interpoladores Espaciais para Geração de Superfícies de Densidade Populacional na Amazônia de superfícies de densidade populacional na Amazônia Brasileira. Os principais problemas de mais utilizados para gerar superfícies de densidade populacional. Discute-se a aplicabilidade destes

Camara, Gilberto

248

Bases morfofisiolgicas para maior tolerncia dos hbridos modernos de milho a altas densidades de plantas  

Microsoft Academic Search

RESUMO O lanamento de hbridos de milho tolerantes ao aumento da densidade de plantas contribuiu para o incremento do potencial produtivo da cultura na segunda metade do sculo XX. Objetiva-se com esta reviso de literatura discutir caractersticas morfolgicas, fisiolgicas, fenolgicas e alomtricas que contriburam para maior adaptao do milho a elevadas densidades de plantas. Os processos de seleo utilizados pelos

Lus Sangoi; Milton Luiz de Almeida; Paulo Regis Ferreira da Silva; Gilber Argenta

2002-01-01

249

Escalamiento en la Densidad de Im agenes para una Reconstrucci on Tridimensional  

E-print Network

Escalamiento en la Densidad de Im#19;agenes para una Reconstrucci#19;on Tridimensional Luis Gerardo microscopio electr#19;onico de transmisi#19;on. El escalamiento en la densidad es un paso previo para usar semejante, a una densidad cero y una varianza arbitraria de valor 100. Roseman et al [6] simplemente

Fraga, Luis Gerardo de la

250

Metodologa para el Anlisis y Diseo de Sistemas Multi Agente Robticos: MAD-Smart  

Microsoft Academic Search

RESUMEN En este artculo se describe la metodologa para el desarrollo de Sistemas Multi-Agente Robticos MAD-Smart y se desarrollan algunos ejemplos para visualizar algunas de sus car actersticas. La metodologa buscar dar cobertura en la fase de con ceptuacin, anlisis y diseo mediante la definicin de un conj unto de actividades que ayudan al desarrollador a entender mejor el problema

Marcela Vallejo Valencia; John Fredy; Ochoa Gmez; Trminos Generales

251

The effects of para-chlorophenylalanine on brain serotonin, food intake, and U-Maze behavior  

Microsoft Academic Search

The effects of the serotonin depleting drug dl para-chlorophenylalanine on conditioned alternation in the U-Maze were examined. Rats given para-chlorophenylalanine and nondrugged rats received reward contingent upon alternating choices between the left and right maze arms.

Robert A. McFarlain; J. M. Bloom

1972-01-01

252

Livro de actividades em ToonTalk para o pr-escolar  

Microsoft Academic Search

Como orientao para os educadores, foi desenvolvido um conjunto de actividades adequadas a contextos de educao pr-escolar (crianas dos 3 aos 5 anos, na presena de educadores), que se apoiam no videojogo - ou videobrinquedo - ToonTalk. Para permitir uma fcil compreenso e acompanhamento por parte de crianas e educadores, foi ento desenvolvida uma forma grfica de transmitir essas actividades,

Leonel Morgado; Maria Gabriel Bulas Cruz; Ana Teresa Tavares; Christophe Moura

253

Plastic debris ingestion by sea turtle in Para??ba, Brazil  

Microsoft Academic Search

Coastal gill net entanglement and debris intake are important threats to the survival of sea turtles. Two sea turtles (Lepidochelys olivacea and Chelonia mydas) were found stranded along the coast of Para??ba. After necropsy, plastic debris were found in the stomach. The debris is described. This is the first record of this sort of problem for the Para??ba littoral.

Rita Mascarenhas; Robson Santos; Douglas Zeppelini

2004-01-01

254

Accesibilidad para personas con debilidad visual Mac OS X Snow Leopard  

E-print Network

Accesibilidad para personas con debilidad visual Mac OS X Snow Leopard ASIC 18 de noviembre de LEOPARD Al igual que otros sistemas operativos, MAC OS X Snow Leopard ofrece algunas ayudas para que las debilidad visual Mac OS X Snow Leopard ASIC 18 de noviembre de 2010 Pg. 2 de 25 1. Recomendaciones

Fernndez de Crdoba, Pedro

255

PROPUESTAS PARA EL PERFECCIONAMIENTO DEL CLCULO DE LOS COSTOS EN LA EMPRESA FORESTAL INTEGRAL GUANTNAMO  

Microsoft Academic Search

El trabajo se desarrollo en la Empresa Forestal Integral Guantnamo. Para la realizacin de la propuesta se analiz el sistema de costo que se utiliza y su aplicacin en las 3 Unidades Bsicas de Produccin Industrial con que cuentan. Estas unidades para realizar su actividad productiva tienen como punto de partida la demanda que existe por parte de los organismos

Rebeca Judith Gabriel Pellicier; Mara del Pilar Garzn Wilson

2011-01-01

256

Corynebacterium diphtheriae diphtheriae diphtheriae diphtheriae, empleados en la , empleados en la , empleados en la , empleados en la produccin de vacunas para uso humano produccin de vacunas para uso humano produccin de vacunas para uso humano produccin de vacunas para uso humano  

Microsoft Academic Search

En el presente estudio se evalu el mtodo de congelacin a -70C para la preservacin de Bordetella pertussis y Corynebacterium diphtheriae. Para verificar el sustento de los cultivos se realiz un adecuado control de calidad, que incluy comprobacin de pureza, viabilidad y estabilidad de las propiedades de inters. En este trabajo se probaron diferentes formulaciones. Se seleccion la que arroj

Elsie Iglesias; Yilian Plasencia; Teresita Morales; Luis Izquierdo

2000-01-01

257

AMIR-ST: Propuesta de una Aproximacin Metodolgica para la Ingeniera de Requisitos de Sistemas Telemticos  

Microsoft Academic Search

Resumen En el presente artculo se propone a AMIR-ST (Aproximacin Metodolgica para la Ingeniera de Requisitos de Sistemas Telemticos), como un conjunto articulado y bien balanceado de mtodos para el flujo de trabajo de Ingeniera de Requisitos, que constituye un proceso de desarrollo fundamentado en la interaccin continua con los usuarios, la obtencin del Modelo de Negocio, el desarrollo de

Mario Fernando; Solarte Sarasty

258

Seguimiento de Objetos para la reconstruccin de Ambientes en 3D  

Microsoft Academic Search

Este documento presenta el estado del arte en el seguimiento de objetos por medio de visin artificial para generar ambientes reconstruidos en tres dimensiones. El proceso en general, es la consecucin o el flujo cclico de los procesos para llegar a los mdulos de seguimiento y reconstruccin. Partiendo desde los dispositivos de visin que son quienes proporcionan al sistema la

Alvarez Tirado

259

Montaje de INTEGRAL -1 -Manual de Montaje para los Astrnomos de Soporte  

E-print Network

montado. No obstante, hay que tener en cuenta que esta sala se utiliza tambin para otros instrumentos, y explica el montaje del instrumento. Este documento complementa el "Instrument Change Checklist" del WHT utili- zacin para las observaciones de esa noche con otros instrumentos. Los distintos pasos a ejecutar

260

Modelo de desarrollo de aplicaciones mviles basadas en videojuegos para la navegacin de personas ciegas  

Microsoft Academic Search

Existe una necesidad real de contar con sistemas para que personas con discapacidad visual mejoren las habilidades de movilidad y orientacin, es especial para que los nios puedan mejorar su autonoma en el futuro. Sin embargo, estos sistemas deben ser diseados acorde a los objetivos, metodologas y recursos disponibles, as como tambin considerando los intereses y formas de interaccin de

Jaime Snchez; Luis Guerrero; Mauricio Senz; Hctor Flores

261

EVALUACIN DEL POTENCIAL AGROECOLGICO DE CAA DE AZCAR EN ARGENTINA PARA LA PRODUCCIN DE BIOCOMBUSTIBLES  

Microsoft Academic Search

En el presente trabajo se muestran los resultados obtenidos a partir de la evaluacin del cultivo de Caa de Azcar; La puesta en vigencia de las leyes argentinas, que fija incentivos especficos para este cultivo, reabren las posibilidades de retomar la produccin de bioetanol anhidro para uso como combustible. El objetivo final del presente estudio es entonces, contribuir al uso

Rene Alicia Anschau; Noelia Flores Marco; Stella Maris Carballo; Jorge Hilbert

2010-01-01

262

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase.

Arnold, Frances H. (Pasadena, CA); Moore, Jeffrey C. (Pasadena, CA)

1998-01-01

263

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase.

Arnold, Frances H. (Pasadena, CA); Moore, Jeffrey C. (Pasadena, CA)

1999-01-01

264

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method is disclosed for isolating and identifying modified para-nitrobenzyl esterases. These enzymes exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase. 43 figs.

Arnold, F.H.; Moore, J.C.

1998-04-21

265

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method is disclosed for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase. 43 figs.

Arnold, F.H.; Moore, J.C.

1999-05-25

266

Um enfoque antropolgico para o ensino de astronomia no nvel mdio  

NASA Astrophysics Data System (ADS)

H uma enorme carncia de materiais didtico-pedaggicos em astronomia para professores do ensino mdio, sobretudo materiais que explorem tambm aspectos humansticos. A origem do Universo um bom exemplo desta constatao central. Embora tal origem teve explicaes culturais diversas, os professores no tm informaes sobre isso e muito menos material que trabalhe diferentes vises de mundo e treinamento que os capacite a abord-las devidamente. Conseqentemente o ensino de astronomia costuma ser tecnicista e dissociado do aspecto humano que alimenta o grande interesse e curiosidade que esses temas despertam. Aqui apresentamos propostas visando contribuir para reverter esse quadro e trabalhamos distintas vises de Universo: espontneas, autctones e cientficas. Desenvolvemos prticas, materiais instrucionais e textos para viabilizar a adoo de um enfoque antropolgico para o ensino de astronomia no nvel mdio, no qual as culturas humanstica e cientfica sejam integradas de uma maneira contextualizada e eficaz para aquele ensino. Estas propostas foram aplicadas em um curso de treinamento para professores da rede pblica de diferentes disciplinas. A receptividade dos professores abordagem proposta e os resultados alcanados foram muito estimulantes. Destes, destacamos: produo de roteiros de atividades; desenvolvimento de prticas didtico-pedaggicas especficas (e.g., encenao de mitos; dana primordial guarani; "criao" de constelaes e interpretaes pluriculturais; etc.); e sugestes concretas para a efetiva realizao de um ensino interdisciplinar contextualizado, onde questes cosmognicas servem de mote para iniciar tal ensino. Discutimos estes resultados e como o enfoque adotado pode instrumentalizar os professores para leituras de mundo que incluem naturalmente aspectos culturais, sociais e histricos associados aos temas estudados. (PPGECNM/UFRN; PRONEX/FINEP; NUPA/USP; Temticos/FAPESP)

Costa, G. B.; Jafelice, L. C.

2003-08-01

267

Construo de um catlogo de aglomerados abertos para estudo da dinmica da estrutura espiral da Galxia  

NASA Astrophysics Data System (ADS)

Os aglomerados abertos so objetos de grande valor para o estudo da dinmica da Galxia devido esses objetos terem uma faixa de idade relativamente ampla. O trabalho visa estudar a dinmica da estrutura espiral da Galxia principalmente atravs do uso desses aglomerados, uma vez que o estudo da cinemtica desses objetos fundamental para esse objetivo. Nosso grupo trabalha no sentido de construir uma base de dados de aglomerados abertos contendo coordenadas, distncia, idade, movimentos prprios e velocidades radiais e j disponibiliza uma nova verso do catlogo de aglomerados abertos o qual uma compilao de edies anteriores, principalmente Lynga (1987), Mermilliod (1995) e ESO-B (Lauberts 1982). Nossa amostra possui cerca de 1630 aglomerados, mas nem todos os parmetros acima citados foram determinados em sua totalidade. Para determinarmos esses parmetros, derivamos as cores intrnsecas das estrelas membro de cada aglomerado a partir de seus tipos espectrais (busca feita no SIMBAD) obtendo assim o excesso de cor individual. A distribuio dos excessos de cor foi ento utilizada para derivarmos o avermelhamento mdio para cada aglomerado. De maneira similar, os tipos espectrais foram usados para estimar as magnitudes absolutas, e com as magnitudes absolutas e aparentes determinamos a respectiva distribuio do mdulo de distncia e finalmente a distncia. Para determinar as idades foram confeccionados os diagramas cor-magnitude das estrelas de cada aglomerado onde foram superpostas a Seqncia Principal de Idade Zero (ZAMS). Superpomos a ZAMS de Schmidt-Kaler e iscronas de composio solar. Essas iscronas foram usadas para determinao das idades dos aglomerados. Uma vez que no temos ainda resultados finais, apresentamos ento alguns diagramas cor-magnitude os quais foram usados para determinao, principalmente, da distncia e idade dos aglomerados.

Carlos, I. M.; Lpine, J. R. D.

2003-08-01

268

COD, para-chlorophenol and toxicity removal from para-chlorophenol containing synthetic wastewater in an activated sludge unit.  

PubMed

Chlorinated phenolic compounds present in some chemical industry wastewaters cause severe toxic effects on the organisms and often are resistant to biological degradation. Synthetic wastewater containing different concentrations of para-chlorophenol (4-chlorophenol, 4-CP) was biologically treated in an activated sludge unit for COD, 4-CP and toxicity removal. Effects of feed 4-CP concentration on COD, 4-CP, toxicity removals and on sludge volume index were investigated at a constant sludge age of 20 days and hydraulic residence time (HRT) of 25 h. Resazurin method based on dehydrogenase activity was used for determination of the toxicity of the feed and effluent wastewater. COD and 4-CP removals were not affected by the presence of 4-CP in the wastewater up to feed 4-CP concentration of 925 mg l(-1) because of almost complete degradation of 4-CP yielding lower than 50 mg l(-1) 4-CP in the aeration tank. Percent COD, 4-CP and toxicity removals decreased and the effluent COD, 4-CP and toxicity levels increased with further increases in the feed 4-CP concentrations above 925 mg l(-1) because of inhibitory concentrations of 4-CP in the reactor. Biomass concentration in the aeration tank decreased and the sludge volume index (SVI) increased with feed 4-CP concentrations above 925 mg l(-1) resulting in lower COD and 4-CP removal rates. The rates of COD and 4-CP removals indicated substrate (4-CP) inhibition for the feed 4-CP concentrations above 925 mg l(-1) corresponding to the reactor 4-CP of above 200 mg l(-1). The system should be operated at the feed 4-CP concentrations of less than 900 mg l(-1) (4-CP(R) < 200 mg l(-1)) in order to obtain high rates and extents of COD, 4-CP and toxicity removals at a sludge age of 20 days and HRT of 25 h. PMID:16257114

Kargi, Fikret; Konya, Isil

2006-05-20

269

75 FR 34943 - Defense Federal Acquisition Regulation Supplement; Para-Aramid Fibers and Yarns Manufactured in a...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Domestic Para-Aramid Sewing Thread May Be of Lower Quality...specification to use para-aramid thread that was heavier and weaker than the commercial thread that was used in the commercial...Regulatory Flexibility Analysis One respondent...

2010-06-21

270

Aplicacin del Teorema de Nekhorochev para tiempos de estabilidad en Mecnica Celeste  

NASA Astrophysics Data System (ADS)

En Mecnica Celeste, uno de los problemas centrales consiste en la determinacin de los tiempos de estabilidad. El teorema de Nekhorochev proporciona un mtodo para dicho estudio, para un sistema determinado por un hamiltoniano descripto en las variables accin-ngulo. El trabajo consiste en la acotacin tanto del potencial perturbador y de la matriz hessiana del hamiltoniano integrable para determinar luego el tiempo de estabilidad de dicho sistema, donde por estabilidad se entiende la separacin en norma infinito en el espacio de las acciones.

Miloni, O.; Nez, J.; Brunini, A.

271

Colonization of wheat para-nodules by N2-fixing cyanobacterium Nostoc 2S9  

SciTech Connect

The treatment of wheat roots with 2,4-Dichlorophenoxyacetic acid led to the formation of tumor-like structures, para-nodules, which were readily colonized by cyanobacteria. The amount of cyanobacteria found on 2,4-D treated roots was 3.6 times higher than that found on untreated roots. Cyanobacteria penetrated the para-nodules by migrating in between loosely arranged cells that covered their surfaces or by penetrating the space at the junction of root and para-nodule. In plants treated with 2,4-D and co-cultivated with cyanobacteria, the rate of acetylene reduction was three times higher than in control plants.

Gantar, Miroslav; Elhai, Jeff

1999-03-01

272

Endovascular Treatment of a Ruptured Para-Anastomotic Aneurysm of the Abdominal Aorta  

SciTech Connect

We report a case of a ruptured para-anastomotic aortic aneurysm treated with implantation of a bifurcated stent-graft. A 72-year-old patient, who had undergone aortobifemoral bypass for aortoiliac occlusive disease 16 years ago, presented with a ruptured para-anastomotic aortic aneurysm. A bifurcated stent-graft was successfully deployed into the old bifurcated graft. This is the first report of a bifurcated stent-graft being placed through an 'end-to-side' anastomosed old aortobifemoral graft. Endovascular treatment of ruptured para-anastomotic aortic aneurysms can be accomplished successfully, avoiding open surgery which is associated with increased mortality and morbidity.

Sfyroeras, Giorgos S.; Lioupis, Christos, E-mail: lioupisC@vodafone.net.gr; Bessias, Nikolaos; Maras, Dimitris [Red Cross Hospital of Athens, Department of Vascular Surgery (Greece); Pomoni, Maria [Red Cross Hospital of Athens, Department of Radiology (Greece); Andrikopoulos, Vassilios [Red Cross Hospital of Athens, Department of Vascular Surgery (Greece)

2008-07-15

273

Modelos Teoricos de Linhas de Recombinacao EM Radio Frequencias Para Regioes H II  

NASA Astrophysics Data System (ADS)

Foram feitos modelos de linhas de recombino provenientes de regies HII nas frequncias de rdio para distintos nmeros qunticos. Estes modelos consideram regres H II esfericamente simtricas com variaes radiais na densidade e temperatura eletrnica, efeitos de colisoes inelsticas dos eletrons (alargarnento por presso), e afastarnento do equilibrio termodinmico local. 0 bojetivo construir o perfil da linha para cada ponto da nuvern e obter o valor mdio resultante da sua convolu com o feixe da antena de tarnanho comparvel corn o tarnanho angular da nuvern para posterIor cornpara o corn

Abraham, Z.; Cancoro, A. C. O.

1987-05-01

274

All the three ParaHox genes are present in Nuttallochiton mirandus (Mollusca: polyplacophora): evolutionary considerations.  

PubMed

The ParaHox gene cluster contains three homeobox genes, Gsx, Xlox and Cdx and has been demonstrated to be an evolutionary sister of the Hox gene cluster. Among deuterostomes the three genes are found in the majority of taxa, whereas among protostomes they have so far been isolated only in the phylum Sipuncula. We report the partial sequences of all three ParaHox genes in the polyplacophoran Nuttallochiton mirandus, the first species of the phylum Mollusca where all ParaHox genes have been isolated. This finding has phylogenetic implications for the phylum Mollusca and for its relationships with the other lophotrochozoan taxa. PMID:16331637

Barucca, Marco; Biscotti, Maria A; Olmo, Ettore; Canapa, Adriana

2006-03-15

275

Measurement of the formaldehyde ortho to para ratio in three molecular clouds  

NASA Technical Reports Server (NTRS)

Observations of ortho and para H2CO in two types of clouds, a warm cloud (Orion A) and two cold clouds (L183 and TMC1), are presented. The ortho to para ratio in Orion deduced from the H2(C-13)O data is about three, while that for TMC1 is about one and that for L183 is 1-2. The former value is in agreement with the value calculated from chemical models of ortho and para H2CO production. The values for the cold clouds are consistent with thermal equilibrium at a temperature slightly smaller than 10 K.

Kahane, C.; Lucas, R.; Frerking, M. A.; Langer, W. D.; Encrenaz, P.

1984-01-01

276

Descripcin de la zona de alta difusin en un modelo bidimensional para hojas de corriente  

NASA Astrophysics Data System (ADS)

Los modelos bidimensionales para describir hojas de corriente de alta simetra no suministran una descripcin detallada de las regiones donde la difusin es considerablemente importante. Tal es el caso de los modelos desarrollados en la dcada del '60 por Sweet, Parker, Petschek y Sonnerup. En esta comunicacin presentamos una solucin de las ecuaciones MHD en el entorno del origen, construyendo series bidimensionales para todas las magnitudes fsicas involucradas. Valindonos de la alta simetra y de las caractersticas del problema, logramos reducir el nmero de coeficientes a calcular. Utilizamos un programa autoconsistente para extender el clculo a regiones vecinas con difusin moderada o despreciable.

Montero, M. F.; Paola, C. A.; Platzeck, A. M.

277

Algoritmos genticos para la resolucin de problemas de Programacin por Metas Entera. Aplicacin a la Economa de la Educacin  

Microsoft Academic Search

En este trabajo se presenta un algoritmo gentico para la resolucin de problemas de Programacin por Metas Entera. Este tipo de problemas presentan en general un gran nmero de dificultades para su resolucin utilizando algoritmos tradicionales de Programacin Entera, siendo en la mayora de los casos de problemas reales demasiado costosa computacionalmente para afrontarla con garantas. Sin embargo, se mostrar

Rafael Caballero; Julin Molina Luque; Angel Torrico Gonzlez; Trinidad Gmez Nuez

278

Evaluacin de la facilitacin del comercio y el transporte: Una herramienta prctica para su implementacin en los pases  

Microsoft Academic Search

En este documento se presenta una herramienta para evaluar los obstculos en las cadenas de abastecimiento internacional y las medidas necesarias para superarlos. Esta herramienta se ha diseado para los grupos interesados en la facilitacin del comercio y la logstica en los pases en vas de desarrollo, tales como los oficiales de los gobiernos responsables de formular polticas, los especialistas

Banco Interamericano de Desarrollo

2010-01-01

279

Reglas y Estrategias de Transformaci'on para Programas L'ogico--Funcionales  

E-print Network

Alba U.P. Valencia Mayo de 2000 #12; #12; Resumen El problema de la integraci'on de la programaci'on l programaci'on declarativa. Para que los lenguajes declarativos sean ' utiles y puedan utilizarse en apli

Alpuente, María

280

Successful Mnemonics for "por"/"para" and Affirmative Commands with Pronouns.  

ERIC Educational Resources Information Center

Two mnemonic devices, "4A Rule" and "PERFECT," are described to simplify the learning of two grammar points: the placement of object pronouns with respect to commands and the distinction between "por" and "para." (five references) (LB)

Mason, Keith

1992-01-01

281

Communications: Development and characterization of a source of rotationally cold, enriched para-H3+  

NASA Astrophysics Data System (ADS)

In an effort to develop a source of H3+ that is almost entirely in a single quantum state (J =K=1), we have successfully generated a plasma that is enriched to 83% in para-H3+ at a rotational temperature of 80 K. This enrichment is a result of the nuclear spin selection rules at work in hydrogenic plasmas, which dictate that only para-H3+ will form from para-H2, and that para-H3+ can be converted to ortho-H3+ by subsequent reaction with H2. This is the first experimental study in which the H2 and H3+ nuclear spin selection rules have been observed at cold temperatures. The ions were produced from a pulsed solenoid valve source, cooled by supersonic expansion, and interrogated via continuous-wave cavity ringdown spectroscopy.

Tom, Brian A.; Mills, Andrew A.; Wiczer, Michael B.; Crabtree, Kyle N.; McCall, Benjamin J.

2010-02-01

282

Lo que usted debe saber antes de dar sus tejidos para investigacin mdica  

Cancer.gov

Contiene informacin sobre las cosas que usted debe saber y tener en cuenta al tomar una decisin de donar sus tejidos para investigacin. El tejido puede incluir materiales de su cuerpo tales como piel, cabello, uas, sangre y orina.

283

revised January 2009 Formulario de Inscripcin para Voluntario de 4-H  

E-print Network

,000 Sexo: ( ) Nativo Hawaiano o Islas del Pacifico ( ) Suburbio mas de 50,000 ( ) Masculino ( ) Blanco o para todos sin tener en cuenta raza, color, religión, sexo, orientación sexual, nacionalidad, edad

Tullos, Desiree

284

The design and synthesis of linear and macrocyclic Poly(para-arylene)s  

E-print Network

Poly(para-phenylene) (PPP) has generated sustained scientific interest due to its potential as a blue-emitting material for use in Organic Light Emitting Devices (OLEDs). However, due to its highly unfavorable solubility, ...

Batson, Joel Marcus

2013-01-01

285

ParaLearn: a massively parallel, scalable system for learning interaction networks on FPGAs  

Microsoft Academic Search

ParaLearn is a scalable, parallel FPGA-based system for learning interaction networks using Bayesian statistics. ParaLearn includes problem specific parallel\\/scalable algorithms, system software and hardware architecture to address this complex problem. Learning interaction networks from data uncovers causal relationships and allows scientists to predict and explain a system's behavior. Interaction networks have applications in many fields, though we will discuss them

Narges Bani Asadi; Christopher W. Fletcher; Greg Gibeling; John Wawrzynek; Wing H. Wong; Garry P. Nolan; Zoey Zhou

2010-01-01

286

v*i*d*a lab: repensar los objetos para la vida cotidiana  

Microsoft Academic Search

v*i*d*a lab (2005-2008) fue un taller experimental para estudiantes de diseo industrial de la Pontificia Universidad Javeriana de Bogot (Colombia ) el cual explor la concepcin de nuevos objetos para la vida cotidiana tomando como punto de partida acercamientos de distintas disciplinas sobre el fenmeno de la vida. El presente texto expone las principales re flexiones del taller, sus ejercicios

Alejandro Tamayo

2009-01-01

287

Vers denouvelles molculesantibactriennes. Intrt du para-guanidinothylcalix[4]arne  

Microsoft Academic Search

We present here the results concerning the antibacterial properties evaluation of para-guanidinoethylcalix[4]arene, compared with its constitutive monomer, the para-guanidinoethylphenol, and hexamidine (Hexomdine), an antiseptic from the diamidine family widely used in therapeutic, chosen as a reference in this study for its resemblance in terms of functional groups. Antibacterial activities of those three compounds were evaluated by microdilution methods, in Mueller

M. Grare; M. Mourer; J.-B. Regnouf de Vains; R.-E. Duval

2006-01-01

288

Una alternativa teraputica para micosis superficiales An alternative therapy to superficial mycosis  

Microsoft Academic Search

RESUMEN: se realizaron ensayos in-vivo e in-vitro de una solucin saturada de sacarosa, eugenol (0.4%v\\/v) y polietilenglicol 400 (0.4%v\\/v) para determinar su accin fungicida sobre cepas productoras de micosis superficiales y su genotoxicidad. A suspensiones de Microsporum canis, Trichophyton rubrum, Trichophyton mentagrophytes y Epidermophyton flocosum, se les agreg la solucin de ensayo y se hicieron cultivos en agar Sabouraud para

289

Desenvolvimento de um data logger porttil para sinais de movimento utilizando cartes MMC  

Microsoft Academic Search

Resumo - Neste artigo descreve-se o desenvolvimento de um data logger porttil para armazenagem de sinais relacionados ao movimento humano. O sistema utiliza cartes MultiMediaCard como dispositivo de armazenamento de alta capacidade e um microcontrolador com oito canais de converso A\\/D para entrada dos sinais analgicos provenientes de sensores de movimento ou eletrodos de eletromiografia. A taxa de amostragem pode

R. E. M. Farias; J. P. J Conti; E. F. Manffra; P. Nohama

290

Curing of some epoxy-acrylate glycidyl ethers based on para-alkyl substituted phenols  

Microsoft Academic Search

Curing of epoxy-acrylate glycidyl ethers based on phenol and para-alkyl [?CH3, ?C(CH3)3, ?C9H19] substituted phenols in the presence of benzoyl peroxide was examined by differential scanning calorimetry at different heating rates. The tested monomers polymerize first as acrylic monomers and the reaction continues by the curing process only in the case of the epoxy-acrylate glycidyl ethers of para-alkyl substituted phenols,

C. N. Ca?caval; D. Ro?u; A. Stoleriu

1997-01-01

291

Hibridacion entre Filtros de Particulas y Meta-heuristicas para resolver problemas dinamicos  

E-print Network

optimizaci´on en los cuales la descripci´on del problema y/o los datos relevantes cambian en el tiempo. Para de adaptaci´on a cambios. Los m´etodos metaheur´isticos son procedimientos para explorar de forma´es de la hibridaci´on de los m´etodos anteriores. 1. Introducci´on Muchos problemas de optimizaci´on con

Pantrigo Fernández, Juan José

292

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

293

REPERTORIO DIDCTICO ESPAOL EN EL MARCO DE LA ENSEANZA PARA CUERDA EN EL CONSERVATORIO DE MADRID EN EL SIGLO XIX: OBRAS PARA VIOLN, VIOLONCELLO Y VIOLA  

Microsoft Academic Search

El anlisis del conjunto de aportaciones al repertorio didctico para violn, viola y violoncello, realizadas por autores vinculados al Conservatorio de Madrid durante el siglo XIX, pone de manifiesto la conexin de la enseanza de cuerda con modelos europeos, al tiempo que representa un captulo imprescindible dentro del estudio de la msica instrumental espaola en esa centuria. El Mtodo Elemental

Mnica Garca Velasco

2005-01-01

294

ALCHEMIST (Estudios sobre la Secuenciacin e Identificacin de Marcadores para el Mejoramiento de la Terapia Adjuvante para el Cncer de Pulmn): Preguntas y respuestas  

Cancer.gov

ALCHEMIST comprende tres estudios clnicos integrados de medicina de precisin diseados para identificar a personas con cncer de pulmn en estadio inicial cuyos tumores tienen ciertos cambios genticos poco comunes. Tambin buscan evaluar si los tratamientos con medicamentos que combaten esos cambios moleculares pueden mejorar la supervivencia

295

Competing ParA structures space bacterial plasmids equally over the nucleoid.  

PubMed

Low copy number plasmids in bacteria require segregation for stable inheritance through cell division. This is often achieved by a parABC locus, comprising an ATPase ParA, DNA-binding protein ParB and a parC region, encoding ParB-binding sites. These minimal components space plasmids equally over the nucleoid, yet the underlying mechanism is not understood. Here we investigate a model where ParA-ATP can dynamically associate to the nucleoid and is hydrolyzed by plasmid-associated ParB, thereby creating nucleoid-bound, self-organizing ParA concentration gradients. We show mathematically that differences between competing ParA concentrations on either side of a plasmid can specify regular plasmid positioning. Such positioning can be achieved regardless of the exact mechanism of plasmid movement, including plasmid diffusion with ParA-mediated immobilization or directed plasmid motion induced by ParB/parC-stimulated ParA structure disassembly. However, we find experimentally that parABC from Escherichia coli plasmid pB171 increases plasmid mobility, inconsistent with diffusion/immobilization. Instead our observations favor directed plasmid motion. Our model predicts less oscillatory ParA dynamics than previously believed, a prediction we verify experimentally. We also show that ParA localization and plasmid positioning depend on the underlying nucleoid morphology, indicating that the chromosomal architecture constrains ParA structure formation. Our directed motion model unifies previously contradictory models for plasmid segregation and provides a robust mechanistic basis for self-organized plasmid spacing that may be widely applicable. PMID:25521716

Ietswaart, Robert; Szardenings, Florian; Gerdes, Kenn; Howard, Martin

2014-12-01

296

Spontaneous Emission Between - and Para-Levels of Water-Ion H_2O^+  

NASA Astrophysics Data System (ADS)

Nuclear spin conversion interaction of water ion, H_2O^+, has been studied to derive spontaneous emission lifetime between ortho- and para-levels. H_2O^+ is a radical ion with the ^2B_1 electronic ground state. Its off-diagonal electron spin-nuclear spin interaction term, Tab(S_a? I_b + S_b? I_a), connects para and ortho levels, because ? I = I_1 - I_2 has nonvanishing matrix elements between I = 0 and 1. The mixing by this term with Tab = 72 MHz predicted by ab initio theory in the MRD-CI/Bk level, is many orders of magnitude larger than for closed shell molecules because of the large magnetic interaction due to the un-paired electron. Using the molecular constants reported by Mrtz et al. by FIR-LMR, we searched for ortho and para coupling channels below 1000 cm-1 with accidental near degeneracy between para and ortho levels. For example, hyperfine components of the 42,2(ortho) and 33,0(para) levels mix by 1.2 10-3 due to their near degeneracy (? E = 0.417 cm-1), and give the ortho-para spontaneous emission lifetime of about 0.63 year. The most significant low lying 10,1(para) and 11,1(ortho) levels, on the contrary, mix only by 8.7 10-5 because of their large separation (? E = 16.267 cm-1) and give the spontaneous emission lifetime from 10,1(para) to 00,0(ortho) of about 100 year.These results qualitatively help to understand the observed high ortho- to para- H_2O^+ ratio of 4.8 0.5 toward Sgr B2 but they are too slow to compete with the conversion by collision unless the number density of the region is very low (n 1 cm-3) or radiative temperature is very high (T_r > 100 K). M. Staikova, B. Engels, M. Peric, and S.D. Peyerimhoff, Mol. Phys. 80, 1485 (1993) P. Mrtz, L.R. Zink, K.M. Evenson, and J.M. Brown J. Chem. Phys. 109, 9744 (1998). LP. Schilke, et al., A&A 521, L11 (2010).

Tanaka, Keiichi; Harada, Kensuke; Nanbu, Shinkoh; Oka, Takeshi

2012-06-01

297

On the Ortho:Para Ratio of H+ 3 in Diffuse Molecular Clouds  

NASA Astrophysics Data System (ADS)

The excitation temperature T 01 derived from the relative intensities of the J = 0 (para) and J = 1 (ortho) rotational levels of H2 has been assumed to be an accurate measure of the kinetic temperature in interstellar environments. In diffuse molecular clouds, the average value of T 01 is ~70 K. However, the excitation temperature T(H+ 3) derived from the (J, K) = (1, 1) (para) and (1, 0) (ortho) rotational levels of H+ 3 has been observed to be ~30 K in the same types of environments. In this work, we present observations of H+ 3 in three additional diffuse cloud sight lines for which H2 measurements are available, showing that in four of five cases T 01 and T(H+ 3) are discrepant. We then examine the thermalization mechanisms for the ortho:para ratios of H+ 3 and H2, concluding that indeed T 01 is an accurate measure of the cloud kinetic temperature, while the ortho:para ratio of H+ 3 need not be thermal. By constructing a steady-state chemical model taking into account the nuclear spin dependence of reactions involving H+ 3, we show that the ortho:para ratio of H+ 3 in diffuse molecular clouds is likely governed by a competition between dissociative recombination with electrons and thermalization via reactive collisions with H2. Based in part on observations made with ESO Telescopes at the La Silla or Paranal Observatories under program ID 384.C-0618.

Crabtree, Kyle N.; Indriolo, Nick; Kreckel, Holger; Tom, Brian A.; McCall, Benjamin J.

2011-03-01

298

ParaPep: a web resource for experimentally validated antiparasitic peptide sequences and their structures  

PubMed Central

ParaPep is a repository of antiparasitic peptides, which provides comprehensive information related to experimentally validated antiparasitic peptide sequences and their structures. The data were collected and compiled from published research papers, patents and from various databases. The current release of ParaPep holds 863 entries among which 519 are unique peptides. In addition to peptides having natural amino acids, ParaPep also consists of peptides having d-amino acids and chemically modified residues. In ParaPep, most of the peptides have been evaluated for growth inhibition of various species of Plasmodium, Leishmania and Trypanosoma. We have provided comprehensive information about these peptides that include peptide sequence, chemical modifications, stereochemistry, antiparasitic activity, origin, nature of peptide, assay types, type of parasite, mode of action and hemolytic activity. Structures of peptides consisting of natural, as well as modified amino acids have been determined using state-of-the-art software, PEPstr. To facilitate users, various user-friendly web tools, for data fetching, analysis and browsing, have been integrated. We hope that ParaPep will be advantageous in designing therapeutic peptides against parasitic diseases. Database URL: http://crdd.osdd.net/raghava/parapep/ PMID:24923818

Mehta, Divya; Anand, Priya; Kumar, Vineet; Joshi, Anshika; Mathur, Deepika; Singh, Sandeep; Tuknait, Abhishek; Chaudhary, Kumardeep; Gautam, Shailendra K.; Gautam, Ankur; Varshney, Grish C.; Raghava, Gajendra P.S.

2014-01-01

299

The formaldehyde ortho/para ratio as a probe of dark cloud chemistry and evolution  

NASA Technical Reports Server (NTRS)

We present measurements of the H2CO ortho/para ratio toward four star-forming cores, L723, L1228, L1527, and L43, and one quiescent core, L1498. Combining these data with earlier results by Minh et al., three quiescent cores are found to have ortho/para ratios near 3, the ratio of statistical weights expected for gas-phase formation processes. In contrast, ortho/para ratios are 1.5-2.1 in five star-forming cores, suggesting thermalization at a kinetic temperature of 10 K. We attribute modification of the ortho/para ratio in the latter cores to formation and/or equilibration of H2CO on grains with sub-sequent release back into the gas phase due to the increased energy inputs from the forming star and outflow. We see accompanying enhancements in the H2CO abundance relative to H, to support this idea. The results suggest that the formaldehyde ortho/para ratio can differentiate between quiescent cores and those in which low-mass star formation has occurred.

Dickens, J. E.; Irvine, W. M.

1999-01-01

300

Introduccion Tecnica de backtracking Recorridos secuenciales Recorridos paralelos Conclusiones y trabajos futuros Modelado y autooptimizacion en esquemas  

E-print Network

dado, programando una t´ecnica particular. Facilitan la programaci´on de los usuarios no expertos. #12. Facilitan la programaci´on de los usuarios no expertos. #12;Introducci´on T´ecnica de backtracking resolver un problema dado, programando una t´ecnica particular. Facilitan la programaci´on de los usuarios

Giménez, Domingo

301

Relaciones Culturales de Mexico: Convenios de Intercambio Cultural y Asistencia Tecnica (Mexican Cultural Relations: Cultural Exchange and Technical Assistance Agreements).  

ERIC Educational Resources Information Center

This document is an English-language abstract (approximately 1500 words) describing briefly Mexico's cultural relations with 23 nations with which she has cultural exchange agreements. The reasons for cultural exchange are stated, such as the belief that cultural relations promote good relations among nations. The agreements concluded between

n10 p43-83, 1971

1971-01-01

302

Caracteristicas de la Instruccion Programada como Tecnica de Ensenanza (Characteristics of Programed Instruction as a Teaching Technique).  

ERIC Educational Resources Information Center

This discussion of programed instruction begins with the fundamental psychological aspects and learning theories behind this teaching method. Negative and positive reinforcement, conditioning, and their relationship to programed instruction are considered. Different types of programs, both linear and branching, are discussed; criticism of the

Dorrego, Maria Elena

303

Davis o ambiente ideal para estudantes internacionais estudarem, desenvolverem-se como cidados mundiais e fazerem amigos para toda a vida. Davis tem uma populao  

E-print Network

a sociedade e o 10º lugar em termos de gastos com pesquisas. Todos os anos, mais de 30 000 alunos estudam informações Para baixar um folheto com informações sobre todos os nossos cursos, visite nosso website ou entre o ano todo, é um dos cursos de inglês intensivo mais antigos e respeitados dos EUA. Com uma carga

California at Davis, University of

304

Comparison of Divalent Transition Metal Ion ParaCEST MRI Contrast Agents  

PubMed Central

Transition metal ion-based paraCEST agents (TM-CEST) are a promising new class of compounds for MRI contrast. Members in this class of compounds include paramagnetic complexes of FeII, CoII and NiII. The development of the coordination chemistry for these paraCEST agents is presented with an emphasis on the choice of azamacrocycle backbone and pendent groups with the goals of controlling oxidation state, spin state and stability of the complexes. CEST spectra and images are compared for different macrocyclic complexes containing amide or heterocyclic pendent groups. The potential of paraCEST agents that function as pH and redox-activated MRI probes is discussed. PMID:24253281

Dorazio, Sarina J.; Olatunde, Abiola O.; Tsitovich, Pavel B.

2013-01-01

305

Irritant contact dermatitis from a black henna tattoo without sensitization to para-phenylendiamine.  

PubMed

Allergic contact dermatitis from nonpermanent black henna tattoos has been frequently reported, particularly in children. Contamination or adulteration of the dyes with para-phenylendiamine has been identified as major cause of active sensitization and elicitation of severe allergic contact dermatitis. Sequelae include permanent sensitization, hyper- or hypopigmentation, scarring, keloids, and hypertrichosis. We report a rare case of irritant dermatitis to an unknown ingredient in a black henna tattoo with consecutive hypopigmentation. Sensitization to para-phenylendiamine and other para-compounds was excluded by patch test evaluation. This is relevant for future exposure to consumer products such as hair dyes or in occupational settings. Generally, black henna tattoos, particularly if done with dyes of unknown composition, should be strongly discouraged. PMID:23690526

Kind, Fabiola; Hofmeier, Kathrin Scherer; Bircher, Andreas J

2013-06-01

306

Allergic contact dermatitis to para-phenylenediamine in a tattoo: a case report.  

PubMed

It is highly popular among children and young adults to have temporary henna tattoos on their bodies in different colors and figures. Henna is a greenish natural powder obtained from the flowers and dry leaves of Lawsonia alba plant and its allergenicity is very low. Henna is also used in combination with other coloring substances such as para-phenylenediamine in order to darken the color and create a permanent tattoo effect. Para-phenylenediamine is a substance with high allergenicity potential and may cause serious allergic reactions. Here, we aimed to draw attention to the potential harms of para-phenylenediamine containing temporary tattoos by presenting a child patient who developed allergic contact dermatitis after having a scorpion-shaped temporary tattoo on his forearm. PMID:22909181

Turan, Hakan; Okur, Mesut; Kaya, Ertugrul; Gun, Emrah; Aliagaoglu, Cihangir

2013-06-01

307

Determinacion de periodos fundamentales del suelo mediante vibraciones ambientales en el municipio de Humacao, Puerto Rico  

NASA Astrophysics Data System (ADS)

La tecnica de Nakamura ha sido utilizada a nivel mundial para determinar periodos fundamentales del suelo. La tecnica consiste en calcular y graficar cocientes espectrales H/V de vibraciones ambientales registradas sobre el suelo. Mediciones de vibraciones ambientales fueron tomadas en 151 lugares dentro del municipio de Humacao, localizado al este de Puerto Rico. Los datos se procesaron utilizando espectros de Fourier y espectros de potencia. La tecnica fue validada al compararla con los resultados de cocientes espectrales H/V de registros de sismos debiles y tambien con una modelacion numerica realizada con datos de un ensayo "downhole". Las graficas de los cocientes espectrales H/V fueron divididas en casos y grupos, los cuales dependen de la facilidad para identificar el periodo fundamental pico y amplitudes en frecuencias menores de 1 Hz, respectivamente. Los resultados obtenidos con ambos espectros fueron comparados y se concluye que los mismos se complementan para proveer resultados mas confiables. Se crearon mapas de periodos fundamentales, factores de amplitud, isoperiodos y clasificacion sismica de sitio. Los mapas de isoperiodos fueron realizados en las zonas mas pobladas sobre depositos de suelo. El mapa de periodos fundamentales del suelo mostro buena correlacion con la geologia local. El mapa de clasificacion sismica derivado de periodos de sitio fue comparado con el mapa de clasificacion sismica derivado de barrenos geotecnicos. El mapa de clasificacion obtenido de periodos puede sobreestimar un poco algunas clasificaciones del suelo. Sin embargo, este mapa puede proveer un estimado aproximado de la velocidad de onda de corte promedio del suelo hasta una profundidad de 100 pies (30 metros).

Cintron Aponte, Rommel

308

Animaciones en 3D en tiempo real para las clases de ciencias e ingeniera: Ejemplos desarrollados con el mdulo de programacin VPython  

Microsoft Academic Search

RESUMEN: Se describe el uso del mdulo de programacin VPython para desarrollar animaciones en 3D por computadora para ilustrar temas de inters para las clases. Mostramos la utilidad del uso de animaciones para reforzar las presentaciones de materias como fsica y matemtica, entre otras. Con tales presentaciones se puede innovar en el desarrollo de las clases de ciencias e ingeniera

Eduardo E. Rodrguez

309

Quantum rotation of ortho and para-water encapsulated in a fullerene cage  

PubMed Central

Inelastic neutron scattering, far-infrared spectroscopy, and cryogenic nuclear magnetic resonance are used to investigate the quantized rotation and orthopara conversion of single water molecules trapped inside closed fullerene cages. The existence of metastable ortho-water molecules is demonstrated, and the interconversion of ortho-and para-water spin isomers is tracked in real time. Our investigation reveals that the ground state of encapsulated ortho water has a lifted degeneracy, associated with symmetry-breaking of the water environment. PMID:22837402

Beduz, Carlo; Carravetta, Marina; Chen, Judy Y.-C.; Concistr, Maria; Denning, Mark; Frunzi, Michael; Horsewill, Anthony J.; Johannessen, Ole G.; Lawler, Ronald; Lei, Xuegong; Levitt, Malcolm H.; Li, Yongjun; Mamone, Salvatore; Murata, Yasujiro; Nagel, Urmas; Nishida, Tomoko; Ollivier, Jacques; Rols, Stphane; Rm, Toomas; Sarkar, Riddhiman; Turro, Nicholas J.; Yang, Yifeng

2012-01-01

310

Tcnicas de Minera de Datos para la Deteccin de Lavado de Activos  

Microsoft Academic Search

AbstractLa tarea de deteccin de lavado,de activos no es un tema fcil de resolver, teniendo en cuenta las mltiples modalidades,y la evolucin rpida que,este tema,ha,tenido. En la actualidad muchas entidades financieras a nivel mundial, utilizan tcnicas de,minera de,datos,y modelos,estadsticos para reconocer,patrones,de comportamiento,de las transacciones fraudulentas,o de la utilizacin normal,de los clientes para detectar operaciones sospechosas. Este documento,realiza una introduccin,al tema

Wilfredy Santamaria Ruiz

311

Large scale visualization on the Cray XT3 using ParaView.  

SciTech Connect

Post-processing and visualization are key components to understanding any simulation. Porting ParaView, a scalable visualization tool, to the Cray XT3 allows our analysts to leverage the same supercomputer they use for simulation to perform post-processing. Visualization tools traditionally rely on a variety of rendering, scripting, and networking resources; the challenge of running ParaView on the Lightweight Kernel is to provide and use the visualization and post-processing features in the absence of many OS resources. We have successfully accomplished this at Sandia National Laboratories and the Pittsburgh Supercomputing Center.

Rogers, David; Geveci, Berk (Kitware, Inc.); Eschenbert, Kent (Pittsburgh Supercomputing Center); Neundorf, Alexander (Technical University of Kaiserslautern); Marion, Patrick (Kitware, Inc.); Moreland, Kenneth D.; Greenfield, John

2008-05-01

312

Natural bond orbital analysis of some para -substituted N -nitrosoacetanilide biological molecules  

Microsoft Academic Search

Theoretical study of several para-substituted N-nitrosoacetanilide biological molecules has been performed using density functional B3LYP method with 6-31G(d,p) basis set.\\u000a Geometries obtained from DFT calculation were used to perform natural bond orbital analysis. The p characters of two nitrogen\\u000a natural hybrid orbital (NHO) ?\\u000a N3N2 bond orbitals increase with increasing ?\\u000a p values of the para substituent group on the

Xiao-Hong Li; Rui-Zhou Zhang; Xian-Zhou Zhang

2009-01-01

313

LIVROS DIDTICOS E SUAS FUNES PARA O PROFESSOR DE MATEMTICA NO BRASIL E NA FRANA.  

E-print Network

LIVROS DIDÁTICOS E SUAS FUN??ES PARA O PROFESSOR DE MATEMÁTICA NO BRASIL E NA FRAN?A. Clovis Gomes-Claude.Regnier@univ-lyon2.fr RESUMO Esse texto aborda as funções do livro didático de matemática em dois n que visa pôr em evidência o livro didático de matemática como «vetor de formação continuada» para os

Paris-Sud XI, Université de

314

REDES-Revista hispana para el anlisis de redes sociales Vol.17,#13, Diciembre 2009  

E-print Network

REDES- Revista hispana para el anlisis de redes sociales Vol.17,#13, Diciembre 2009 http://revista-redes - Universidad de Sevilla Resumen Este artculo resume una parte de nuestro trabajo sobre las redes de apoyo clasificacin de los tipos de redes de apoyo de los inmigrantes con menos de diez aos de residencia en Espaa

Boyer, Edmond

315

ABORDAGEM MULTIOBJETIVO PARA OTIMIZAO DE REDES DE FILAS F. R. B. Cruz  

E-print Network

1 ABORDAGEM MULTIOBJETIVO PARA OTIMIZAO DE REDES DE FILAS FINITAS F. R. B. Cruz Departamento de uma rede de filas finitas com servio geral. Como tais objetivos so conflitantes, utiliza-se uma sistemas estocsticos. Palavras-Chaves: Redes de filas; algoritmos genticos; otimizao multiobjetivo

Cruz, Frederico

316

REDES-Revista hispana para el anlisis de redes sociales Vol.15, #4, Diciembre 2008  

E-print Network

REDES- Revista hispana para el anlisis de redes sociales Vol.15, #4, Diciembre 2008 http://revista-redes.rediris.es Patrones de cambio de las redes personales de inmigrantes en Catalua Jos Luis Molina1 (UAB), Jrgen Lerner2 (UK) y Slvia Gmez Mestres3 (UAB) Resumen A travs del anlisis de las redes personales de

Brandes, Ulrik

317

Aplicao de Tcnicas de Redes Sociais para o Sucesso Alexandre Baro  

E-print Network

Aplicao de Tcnicas de Redes Sociais para o Sucesso Educativo Alexandre Baro alexandrebarao combate ao insucesso escolar. A anlise de redes sociais concentra-se nas relaes existentes entre informao electrnicos, a aplicao da anlise de redes sociais pode proporcionar um conjunto de inferncias

da Silva, Alberto Rodrigues

318

REDES-Revista hispana para el anlisis de redes sociales Vol.6,#7, Junio 2009  

E-print Network

REDES- Revista hispana para el anlisis de redes sociales Vol.6,#7, Junio 2009 http://revista-redes propone devolverle a la relacin social su importancia como unidad bsica de las redes sociales, y explorar lo que constituye su "sustancia" considerada aqu como el "motivo" de las relaciones. Las redes

Boyer, Edmond

319

REDES-Revista hispana para el anlisis de redes sociales Vol.19,#10, Diciembre 2010  

E-print Network

REDES- Revista hispana para el anlisis de redes sociales Vol.19,#10, Diciembre 2010 http://revista-redes.rediris.es Redes de consejo en la industria biotecnolgica en Francia1 Alvaro Pia-Stranger2 IRISSO (CNRS artculo exploramos las redes de consejo inter-organizacionales, apoyndonos en la idea de que la

Boyer, Edmond

320

Um Framework para Proviso de QoS em Redes Mveis Sem Fio1  

E-print Network

Um Framework para Proviso de QoS em Redes Mveis Sem Fio1 Luciana dos Santos Lima, Antnio Tadeu A proviso de QoS em redes mveis sem fio integrando solues isoladas encontradas na literatura. Esses descrita atravs de um cenrio simulado em que servios integrados so oferecidos sobre uma rede IP Mvel

Colcher, Srgio

321

REDES-Revista hispana para el anlisis de redes sociales Vol.6,#7, Junio 2009  

E-print Network

REDES- Revista hispana para el anlisis de redes sociales Vol.6,#7, Junio 2009 http://revista-redes.rediris.es En busca del contenido de las redes sociales: los "motivos" de las relaciones1 Claire Bidart2 , CNRS devolverle a la relacin social su importancia como unidad bsica de las redes sociales, y explorar lo que

Paris-Sud XI, Universit de

322

REDES-Revista hispana para el anlisis de redes sociales Vol.9,#6, Diciembre 2005  

E-print Network

REDES- Revista hispana para el anlisis de redes sociales Vol.9,#6, Diciembre 2005 http://revista-redes.rediris.es La explicacin a travs de la visualizacin de redes1 Ulrik Brandes, Universidad de Konstanz. Tercero, valoramos algunos ejemplos especficos de la visualizacin de redes basada en estos principios

Brandes, Ulrik

323

Submetido revista Pesquisa Naval Abordagem Multiobjetivo para Otimizao de Redes de Filas Finitas  

E-print Network

Submetido revista Pesquisa Naval Abordagem Multiobjetivo para Otimizao de Redes de Filas atendimento global de uma rede de filas finitas com servio geral. Como tais objetivos so conflitantes of these important stochastic systems. Palavras-chave: Redes de filas. Algoritmos genticos. Otimizao multiobjetivo

Cruz, Frederico

324

DEPENDNCIA DE MICORRIZAS PARA A NODULAO DE LEGUMINOSAS ARBREAS TROPICAIS1  

Microsoft Academic Search

RESUMO - As espcies de leguminosas Piptadenia gonoacantha e Piptadenia paniculata apresentam dificuldade para nodular e crescer em substratos esterilizados, o que dificulta a seleo de estirpes de rizbio eficientes dessas espcies. As plantas que apresentam ndulos no campo esto micorrizadas. Assim, a boa resposta das plantas no campo pode ser devida presena de FMAs. O objetivo deste trabalho

Ederson da Conceio Jesus; Jolimar Antnio Schiavo; Srgio Miana de Faria

325

Planejamento Hierrquico Para Enxames Robticos Baseado na Explorao do Espao de Configuraes  

E-print Network

independente do número de robôs. Experimentos foram realizados em simulação e ambientes reais e os resultados espaço de configurações individual, ou definir campos vetoriais globais para con- trolar o enxame como um

Chaimowicz, Luiz

326

Montagem e Resultados Preliminares de Aparato Experimental para Estudo Trmico de Materiais Ablativos  

Microsoft Academic Search

O estudo do fenmeno fsico de ablao, que ocorre em determinados materiais usados em sistemas de proteo trmica de satlites, bem como a caracterizao das propriedades trmicas dos mesmos so considerados de grande importncia, por representar um ponto estratgico para a tecnologia espacial. No Brasil, os estudos de materiais ablativos tm sido realizados dentro da perspectiva do Programa Nacional de

Gabriel Antnio de Souza Jnior; Lucas Mello de Campos Arruda; Walber Ferreira Braga; Mrcia Barbosa; Henriques Mantelli

327

Interrupting Commemoration: Thinking with Art, Thinking through the Strictures of Argentina's "Espacio para la memoria"  

ERIC Educational Resources Information Center

Recently, a few buildings within the "Espacio para la memoria" in Buenos Aires have been designated as a UNESCO Centre where, amongst other educational activities, evidentiary materials of the past repression are to be stored and displayed. Another building in the complex houses a Community Centre operated by the Mothers of the Plaza de Mayo,

Paolantonio, Mario Di

2011-01-01

328

SELECCIN DE ACACIAS PARA LA CONSTRUCCIN DE NIDOS DE AVES: UN BENEFICIO INDIRECTO DEL MUTULISMO  

E-print Network

SELECCI?N DE ACACIAS PARA LA CONSTRUCCI?N DE NIDOS DE AVES: UN BENEFICIO INDIRECTO DEL MUTULISMO caducifolio centroamericano, y comúnmente construyen sus nidos en acacias, principalmente en Acacia collinsii alimenta de las secreciones de los nectarios y los cuerpos de Belt de la de la acacia. Por su parte, la

Cuervo, Andrés

329

Creacin de gua ergonmica para el diseo de interfaz de supervisin  

Microsoft Academic Search

En tareas de supervisin humana de sala de control industrial se aplican de forma genrica disciplinas como la ingeniera del software y la ergonoma fsica para el diseo de la interfaz computerizada y el diseo de la sala de control. Desde el punto de vista de la interaccin persona ordenador, a estas disciplinas hay que aadir la ingeniera de la

Pere Ponsa; Marta Daz; Andreu Catal

330

Significado de los cambios en el cuello uterino: Gua para la salud de la mujer  

Cancer.gov

Explica los pasos que deben seguirse despus de un resultado anormal en una prueba de Pap o del VPH, as como las formas de diagnosticar y tratar las afecciones en el cuello uterino. Tambin contiene informacin sobre las pautas para los exmenes de deteccin y las vacunas contra el VPH.

331

Estructuras de comunicacin para la resolucin de problemas de manera distribuida en la ingeniera concurrente  

Microsoft Academic Search

Se presenta el problema de la comunicacin en la resolucin de problemas distribuidos. Se analizan las siguientes tecnologas de la comunicacin: actores, pizarrones, las comunicaciones homogneas y heterogneas en un ambiente de multiagentes. Se ilustra la discusin con ejemplos del ambiente para el Diseo de Objetos Estructurados (Design of Structured Objects - DESO). El prototipo actual integra algunos sistemas preexistentes

Leonid B. Sheremetov

332

INSTRUMENTACIN DE GRANDES CALDERAS DE POTENCIA PARA LA APLICACIN DE MODELOS AVANZADOS DE INGENIERA  

Microsoft Academic Search

RESUMEN La implementacin de modelos de monitorizacin del funcionamiento de calderas de potencia requiere de gran cantidad de datos para su validacin, que adems deben cumplir unos mnimos requi- sitos de precisin y completitud. La importancia de estos modelos es cada da mayor, pues se aplican en el control de procesos complejos que suceden en este tipo de instalaciones. Frente

Luis Ignacio Dez; Cristbal Corts; Inmaculada Arauzo

333

1/5 CBEB 2008 NOVO MTODO PARA COMPRESSO DE SINAIS DE EMG USANDO  

E-print Network

1/5 CBEB 2008 NOVO MTODO PARA COMPRESSO DE SINAIS DE EMG USANDO JPEG2000 M. V. C. Costa*, P. A for two-dimensional compression of EMG signals, namely correlation sorting. We also present an algorithm for compression of electromyographic (EMG) signals based on the JPEG2000 coding system. Originally designed

Carvalho, Joo Luiz

334

Michael Faraday e o manuscrito Matter: uma soluo metafsica para o problema da ao a distncia  

Microsoft Academic Search

O texto aqui traduzido, intitulado simplesmente Matria, revela um Faraday muito pouco conhecido. notrio que Michael Faraday (1791-1867) fez grandes contribuies para a cincia do eletromagnetismo; dentre elas, duas merecem destaque: a descoberta ex- perimental da induo eletromagntica e a elaborao terica do conceito de linhas de fora, alternativa explicao (de perspectiva newtoniana) baseada na ao a distn-

Sonia Maria Dion

2006-01-01

335

Para presentar una queja en la Oficina de Equidad y Diversidad (OED), por favor incluya  

E-print Network

de Oportunidades de Empleo de los EE.UU. (U.S. Equal Employment Opportunity Commission) o del Estado para la Igualdad de Oportunidades en el Empleo de los Estados Unidos (U.S. Equal Employment Opportunity Commission) Reuss Federal Plaza 310 West Wisconsin Avenue, Suite 800 Milwaukee, WI 53203-2292 Telfono: 414

Sheridan, Jennifer

336

NOTAS TAXONMICAS SOBRE EL GNERO VALERIANELLA MILL. (VALERIANACEAE) PARA LA FLORA IBRICA  

Microsoft Academic Search

RESUMEN. Notas taxonmicas sobre el gnero Valerianella Mill. (Valerianaceae) para la Flora Ibrica. Sobre la base de estudios experimentales que han puesto de manifiesto que Valerianella coronata y V. pumila no son sino dos morfotipos de una misma especie, que difieren fundamentalmente en caracteres carpolgicos, se plantea la hiptesis de que igual sucede en el caso de V. locusta V.

Juan Antonio DEVESA; Josefa LPEZ; Ral GONZALO

2005-01-01

337

Factor Structure of the "Escala de Autoeficacia para la Depresion en Adolescentes" (EADA)  

ERIC Educational Resources Information Center

The current concept and measures of self-efficacy for depression in adolescents do not consider developmental and cultural aspects essential to understand and assess this construct in Latino youth. We examined the factor structure of the "Escala de Autoeficacia para la Depresion en Adolescentes" (EADA), a Spanish instrument designed to assess this

Diaz-Santos, Mirella; Cumba-Aviles, Eduardo; Bernal, Guillermo; Rivera-Medina, Carmen

2011-01-01

338

UN ENFOQUE CONSTRUCTIVISTA PARA USO DE MAPAS CONCEPTUALES EN EDUCACIN A DISTANCIA DE PROFESORES  

Microsoft Academic Search

Resumen. Este trabajo presenta una propuesta de utilizacin de los mapas conceptuales en la formacin de profesores a distancia usando el software CmapTools del Institute for Human and Machine Cognition, dentro de un paradigma constructivista. Nuestra propuesta utiliza como base terica la Epistemologa Gentica de Jean Piaget y, en especial, la teora de las Implicaciones Significantes para la construccin de

Lea Fagundes; Alberto J. Caas

339

BIBLIOTECA GRAPHICALSPRITEKERNEL (GSK): IMPLEMENTACIN DE UNA ARQUITECTURA DE TRES MODELOS PARA CREAR MULTIMEDIA EDUCATIVA  

Microsoft Academic Search

Resumen En este trabajo se presenta una arquitectura de tres modelos para desarrollar multimedia educativa, a travs de una implementacin particular de sta, la biblioteca GraphicalSpriteKernel. Esta arquitectura est constituida por tres modelos diferentes, a emplear en tres fases fundamentales del desarrollo de una aplicacin multimedia: diseo, implementacin y prueba. Esta especializacin permite que cada modelo incluya slo la lgica

Vicente Arturo Romero Zaldivar

340

LA PREPARACIN DEL PROFESOR PARA EL DESARROLLO DE HABILIDADES BSICAS EN EDUCACIN LABORAL  

Microsoft Academic Search

El modelo educativo de Secundaria Bsica exige de un profesional que por su nivel de preparacin, sea capaz de garantizar la formacin integral de las presentes y futuras generaciones. En tal sentido, la presente investigacin incursiona en una de las problemticas acuciantes de esta educacin la preparacin de los profesores de Secundaria Bsica, para favorecer el desarrollo de habilidades prcticas

Alfredo Puig Batista

2010-01-01

341

SIGACLE: SIMULADOR GRFICO ASISTIDO POR COMPUTADOR PARA LA ENSEANZA DE PROGRAMACIN DE LENGUAJES ESTRUCTURADOS  

Microsoft Academic Search

Se plantea la importancia que brinda el desarrollo de herramientas asistidas por computador como apoyo al proceso de enseanza. SIGACLE (Simulador Grfico Asistido por Computador Para la Enseanza de Programacin de Lenguajes Estructurados), tiene como principal objetivo el desarrollo de habilidades cognoscitivas en estudiantes de pregrado en las materias de programacin de computadores. Este documento define especficamente los conceptos necesarios

George Franco Cendales; Mara Paula Daz; Rafael J. Barros

342

The Combined Ortho / Para Hydrogen Assignments in H_2 Metal Chlorides  

NASA Astrophysics Data System (ADS)

The rotational spectra of H_2-AgCl and H_2-AuCl have been measured using a cavity FTMW spectrometer equipped with a laser ablation source. A combination of isotopic substitution, including HD and D_2 substitutions, and the spin-spin interaction of ortho hydrogen were used to determine the structures of these species. Trends in these structures and the strengths of the H_2 interaction will be discussed. Previous work with hydrogen containing complexes have shown that separate spectra are observed for the both the ortho and para hydrogen species. In this work, ortho and para hydrogen are assigned together. The a-axis in the present species is coincident with internal rotation axis of hydrogen. This symmetry, along with a covalent interaction of the H_2 with the metal chlorides, allows for a straightforward global assignment of the ortho and para species. The differences in the present study from the previous works will be discussed, as well as the assignment of the combined ortho and para fits. Y. Zhenhong, K. J. Higgins, W. Klemperer, M. C. McCarthy and P. Thaddeus, J. Chem. Phys., 123(2005) 221106. J. M. Michaug, W. C. Topic, W. Jger, J. Phys. Chem. A., 115(2011) 9456 M. Ishiguro, K Harada, K. Tanaka, Y. Sumiyoshi, Y. Endo, Chem. Phys. Lett., 554(2012) 33.

Obenchain, Daniel A.; Grubbs, G. S., II; Frank, Derek S.; Pickett, Herbert M.; Novick, Stewart E.

2014-06-01

343

Notas de Aula: Fisica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi  

E-print Network

Notas de Aula: F´isica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi 17 de abril de´oxima d´ecada. H´a vezes em que a escolha de carreira dos estudantes de biologia ´e descrita usando exemplos de simbiose entre biologia e f´isica que demostram alguns dos pontos altos da

Caticha, Nestor

344

Problemtica de Seguridad para el Comercio Electrnico en el Sector Turstico  

Microsoft Academic Search

Resumen: Uno d e los s ervicios que c ada da cobra ms importancia y que promete un cambio radical para las empresas es el comercio electrnico en Internet, pero tradicionalmente las empresas r elacionadas con el t urismo slo han empleado la red pa ra darse a conocer y ofertar s us productos. La razn esencial es la d

Javier Lpez; Javier Areitio; Felipe Rosell

345

EL COMERCIO ELECTRNICO EN PASES EN DESARROLLO: LA PLANEACIN PARA EL XITO DEL NEGOCIO  

Microsoft Academic Search

Desde un enfoque que identifica al conocimiento como una fuente de capacidad de competencia en el contexto social, organizacional e individual se explica al Comercio electrnico como un proceso estratgico de las organizaciones de negocio, en el mbito econmico actual. En particular se enfatiza la trascendencia del proceso especfico de planeacin para el xito del negocio a travs de la

L. P. Carrillo

2010-01-01

346

The nongenotoxic carcinogens naphthalene and para-dichlorobenzene suppress apoptosis in Caenorhabditis elegans  

Microsoft Academic Search

Naphthalene (1) and para-dichlorobenzene (PDCB, 2), which are widely used as moth repellents and air fresheners, cause cancer in rodents and are potential human carcinogens. However, their mechanisms of action remain unclear. Here we describe a novel method for delivering and screening hydrophobic chemicals in C. elegans and apply this technique to investigate the ways in which naphthalene and PDCB

David Kokel; Yehua Li; Jun Qin; Ding Xue

2006-01-01

347

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

E-print Network

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

Ortega, Eusebi Calle

348

El proyecto InterAct: Una arquitectura de pizarra para la implementacin de Entornos Activos*  

E-print Network

El proyecto InterAct: Una arquitectura de pizarra para la implementacin de Entornos Activos en una arquitectura en la que se distinguen tres capas: la capa de contexto, la capa de interaccin columna vertebral de la arquitectura de InterAct. Se ha optado por una arquitectura basada en una

Autonoma de Madrid, Universidad

349

SNTESE DE POLISTER PARA APLICAO EM CLULAS A COMBUSTVEL DO TIPO PEM  

Microsoft Academic Search

RESUMO Dos diversos tipos de celulas a combustveis (CaC), a PEMFC (Proton Exchange Membrane Fuel Cell) se destaca pela versatilidade de aplicaes, tanto para uso estacionrio como mvel. Entretanto a PEMFC apresenta alto custo de fabricao, com reflexos diretos no custo da energia produzida. Este trabalho propem a sulfonao do cido ftalico e polimerizao deste com o glicerol, usando como

R. P. Fiuza; D. R. de Souza; R. A. Fiuza; N. M. Jos; J. S. Boaventura

350

Anniversary VetTech Training Hawai`i's First Para-Professionals  

E-print Network

facilities, and private veterinary practice (there are over 80 veterinary clinics in Hawai`i). The new a tremendous success, placing more than 70 percent of graduates in the veterinary industry. Building40th Anniversary VetTech Training Hawai`i's First Para-Professionals Veterinary Technology is among

Olsen, Stephen L.

351

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

Microsoft Academic Search

RESUMEN Este artculo propone el diseo de un sistema de adquisicin de datos con componentes digitales y analgicos microelectrnicos reconfigurables, como son el FPGA (Field Programmable Gate Array) y el FPAA (Field Programmable Analog Array), para monitorear y analizar la contaminacin por ruido ambiental. Este prototipo obtiene los datos del ruido de una zona vial (zona centro de una ciudad)

A. Castillo Atoche; J. Vzquez Castillo; V. Sanchez Huerta; P. Del Ro Dawn

352

UNA EXPERIENCIA DE TRABAJO PARA EL DESARROLLO LOCAL EN UNA COMUNIDAD URBANA DE CUBA  

Microsoft Academic Search

La presente monografa titulada: Una experiencia de trabajo para el desarrollo local en una comunidad urbana de Cuba es fruto de una investigacin realizada hace algn tiempo ya, en el cual se ha contado con el apoyo del CITMA por ser el rgano rector en cuestin del medio ambiente en Cuba, especficamente en este caso se obtuvo la ayuda de

Milena Gmez Navarro

2008-01-01

353

Estudio para la Deteccin de Plomo en Alimentos de Origen Vegetal por Anlisis Infrarrojo  

Microsoft Academic Search

Resumen El objetivo del estudio es determinar un mtodo no invasivo, basado en espectroscopia infrarroja, que sirva como herramienta para la deteccin de plomo en alimentos de origen vegetal. Teniendo presente que los vegetales son una parte importante de nuestra dieta, resulta necesario realizar investigaciones referentes a la presencia de metales pesados en los vegetales, en este caso plomo. El

Daniel Octavio Garca Romero; Leopoldo Flix; Yabar Escribanel

354

Taller: Enfoque Multisectorial para la Seguridad Alimentaria y Nutricin 7-8 Marzo 2013  

E-print Network

desarrollo del sector agrícola más sostenible ambientalmente? ¿Cuál es el rol de los gobiernos y demás Multilaterales de la Agencia Colombiana de Cooperación Internacional para el Desarrollo. Colombia. Con recursos. Coordinador de la Alianza Panamericana de Nutrición y Desarrollo. Moderador: Pablo Mandeville. Coordinador

Liu, X. Shirley

355

Indicadores de gestin urbana. Los observatorios urbano-territoriales para el desarrollo sostenible. Manizales, Colombia  

Microsoft Academic Search

Los Observatorios para el Desarrollo Sostenible del Municipio de Manizales en Colombia, hacen parte del Sistema de Monitoreo diseado por el Municipio como apoyo a la gestin urbana local. A partir de los resultados de indicadores econmicos, sociales y ambientales, los ciudadanos podrn evaluar de forma permanente el desempeo de programas y proyectos del Plan de Desarrollo Municipal y participar

Luz Stella Velsquez

2001-01-01

356

O e-learning como etapa da universidade para o virtual  

Microsoft Academic Search

Resumo. A adopo de prticas de ensino a distncia ou presencial de suporte electrnico, normalmente designadas por e-learning, tem sido vistas como a direco a seguir para um ensino superior, moderno e adequado realidade da Sociedade da Informao. Tendo em linha de conta a realidade especfica da Universidade Fernando Pessoa, traado pelos autores uma reflexo que sustenta que

357

EL WIKI COMO RECURSO PARA DESARROLLAR COMPETENCIAS EN EL PROCESO DE ENSEANZA-APRENDIZAJE  

Microsoft Academic Search

En el presente trabajo se analiza la utilidad de las tecnologas de la informacin y la comunicacin (TIC), y especficamente del Wiki, como herramienta para el modelo de enseanza-aprendizaje derivado del Espacio Europeo de Educacin Superior (EEES). Se realiza una aproximacin al significado del EEES y al modelo de enseanza que propone, en el que lo relevante no es tanto

Mabel Lpez Garca; Jos Mara Souvirn Morenilla

2010-01-01

358

On the Ortho:Para Ratio of H3+ in Diffuse Molecular Clouds  

E-print Network

The excitation temperature T_01 derived from the relative intensities of the J = 0 (para) and J = 1 (ortho) rotational levels of H2 has been assumed to be an accurate measure of the kinetic temperature in interstellar environments. In diffuse molecular clouds, the average value of T_01 is ~70 K. However, the excitation temperature T(H3+) derived from the (J,K) = (1,1) (para) and (1,0) (ortho) rotational levels of H3+ has been observed to be ~30 K in the same types of environments. In this work, we present observations of H3+ in three additional diffuse cloud sight lines for which H2 measurements are available, showing that in 4 of 5 cases T_01 and T(H3+) are discrepant. We then examine the thermalization mechanisms for the ortho:para ratios of H3+ and H2, concluding that indeed T_01 is an accurate measure of the cloud kinetic temperature, while the ortho:para ratio of H3+ need not be thermal. By constructing a steady-state chemical model taking into account the nuclear-spindependence of reactions involving H3...

Crabtree, Kyle N; Kreckel, Holger; Tom, Brian A; McCall, Benjamin J

2011-01-01

359

ConPor: um modelo de gerao conceitual para o Lucia Specia, Lucia Helena Machado Rino  

E-print Network

ConPor: um modelo de geração conceitual para o português Lucia Specia, Lucia Helena Machado Rino ­ 13565-905 ­ São Carlos ­ SP ­ Brasil {lspecia,lucia}@dc.ufscar.br Abstract. This paper describes Con

Specia, Lucia

360

REVISION DE MARCOS TEORICOS EDUCATIVOS PARA EL DISEO Y USO DE PROGRAMAS DIDCTICOS  

Microsoft Academic Search

RESUMEN Se desea presentar la aparicin del software educativo y su evolucin a la luz de algunas de las teoras educati- vas ms representativas. En este paralelismo, slo se mencionan aquellas teoras y\\/o autores que darn los marcos con- ceptuales para los desarrollos de los programas didcticos en funcin de las aplicaciones deseadas. Partiendo del con- ductismo skinneriano1, se pasa

Z. Cataldi; F. Lage; R. Pessacq; Garca Martnez

361

EMPLEO DE FRACCIONES CELULARES DE LA LEVADURA Saccharomyces cerevisiae COMO ADITIVO ALIMENTARIO PARA Artemia franciscana  

Microsoft Academic Search

RESUMEN En el presente estudio se evala la levadura Saccharomyces cerevisiae de forma desintegrada (LD) y tres fracciones celulares obtenidas de ella: complejo pared-membrana (FP), ncleo-protenas (FN) y citoplasma (FC) como aditivo alimentario utilizando al crustceo Artemia franciscana como modelo de experimentacin. Se realizaron dos bioensayos para determinar el efecto que ejercan dichos aditivos en el crecimiento, biomasa seca, supervivencia

Yamil Comabella; Tsai Garca-Galano; Olimpia Carrillo; Yadir Mauri

362

ELEMENTOS DE CONTEXTO DE LA POLTICA MIGRATORIA PARA TRABAJADORES EXTRANJEROS NO COMUNITARIOS EN ESPAA  

Microsoft Academic Search

La poltica migratoria es considerada un objetivo primordial en Espaa, por eso el anlisis las directrices en trabajadores extranjeros no comunitarios es el tema de este artculo. Objetivo: identificar los elementos de contexto de la poltica migratoria. Metodologa: Se trata de la revisin analtica de las polticas y sistematizacin de la literatura sobre el tema de la poltica migratoria para

ROCO BEDOYA

2010-01-01

363

Se necesitan 50 000 fumadores y exfumadores para el Estudio Nacional de Exmenes de Pulmn (NLST)  

Cancer.gov

El Instituto Nacional del Cncer (NCI) lanz hoy un nuevo estudio para determinar si el examinar a las personas ya sea con una tomografa computarizada espiral o con una radiografa de pecho antes de que tengan sntomas puede reducir las muertes por cncer de pulmn.

364

ACADEMIA DE POLCIA CIVIL CONCURSO PBLICO PARA PROVIMENTO DE VAGAS E FORMAO DE CADASTRO DE RESERVA  

E-print Network

ACADEMIA DE POLÍCIA CIVIL CONCURSO P?BLICO PARA PROVIMENTO DE VAGAS E FORMA??O DE CADASTRO DE ACADEMIA DE POLÍCIA CIVIL DO DISTRITO FEDERAL (APCDF), no uso de suas atribuições legais, torna pública Diretor da Academia de Polícia Civil do Distrito Federal #12;

Maier, Rudolf Richard

365

Long-range excitons in conjugated polymers with ring torsions: poly(para-phenylene) and polyaniline  

E-print Network

Long-range excitons in conjugated polymers with ring torsions: poly(para-phenylene) and polyaniline (Running head: Long-range excitons in conjugated polymers) Kikuo Harigaya Physical Science Division formalism. Long-range excitons are charac- terized, and the long-range component of the oscillator strengths

Harigaya, Kikuo

366

Antimicrobial effect of para-alkoxyphenylcarbamic acid esters containing substituted N-phenylpiperazine moiety  

PubMed Central

In current research, nine basic esters of para-alkoxyphenylcarbamic acid with incorporated 4-(4-fluoro-/3-trifluoromethylphenyl)piperazin-1-yl fragment, 6i6m and 8f8i, were screened for their in vitro antimicrobial activity against Candida albicans, Staphylococcus aureus and Escherichia coli, respectively. Taking into account the minimum inhibitory concentration assay (MIC), as the most active against given yeast was evaluated 8i (MIC = 0.20 mg/mL), the most lipophilic structure containing para-butoxy and trifluoromethyl substituents. Investigating the efficiency of the compounds bearing only a single atom of fluorine and appropriate para-alkoxy side chain against Candida albicans, the cut-off effect was observed. From evaluated homological series, the maximum of the effectiveness was noticed for the stucture 6 k (MIC = 0.39 mg/mL), containing para-propoxy group attached to phenylcarbamoyloxy fragment, beyond which the compounds ceased to be active. On the contrary, all the tested molecules were against Staphylococcus aureus and Escherichia coli (MICs > 1.00 mg/mL) practically inactive. PMID:24294237

Malk, Ivan; Bukovsk, Marin; Andriamainty, Fils; Galiinov, Jana

2013-01-01

367

Estados Unidos y cuatro pases de Amrica Latina se unen para combatir el cncer  

Cancer.gov

El Instituto Nacional del Cncer (NCI) de Estados Unidos formaliz esta semana alianzas bilaterales con los gobiernos de Argentina, Brasil, Mxico y Uruguay, para acelerar el avance contra el cncer en la poblacin hispana de Estados Unidos y de Amrica Latina y mejorar la investigacin del cncer.

368

Mtodos de depuracin 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 asignacin en tiempo real de los recursos, el sistema operativo y la plataforma SoC reconfigurable han de estar diseadas 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

369

Sensores CMOS para robotica e industria: Sensor ret nico espacio variante y vision activa  

E-print Network

Sensores CMOS para robotica e industria: Sensor ret nico espacio variante y vision activa Fernando Pardo, Francisco Vegara, Jose A. Boluda, Santiago Felici Instituto de Robotica Universidad de Valencia C venido estudiando especialmente en el terreno de aplicaciones en robotica 2]. Sin em- bargo, en el

Valencia, Universidad de

370

AstroFcil: Sistema Computacional Embarcado para Automatizao de Telescpios de Pequeno Porte  

Microsoft Academic Search

O uso de telescpios de pequeno porte na observao astronmica amadora muitas vezes restringido pela dificuldade que astrnomos amadores enfrentam para localizar um astro desejado e acompanh-lo no cu. Este artigo apresenta o desenvolvimento de um sistema embarcado a ser utilizado na automao de telescpios de pequeno porte visando facilitar a operao desses equipamentos por amadores. O sistema

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

2006-01-01

371

Mdulo II.-Amenazas para la biodiversidad l La sexta gran extincin  

E-print Network

Mdulo II.- Amenazas para la biodiversidad l La sexta gran extincin l Cambio global l Causas y ejemplos de extincin y amenaza Fecha actualizacin: 14-11-13 #12;n La diversidad de especies en la Tierra riesgo de extincin global desde 1980 #12;Geografa de las amenazas a la seguridad del agua y la

Rey Benayas, Jos Mara

372

Tutorial sobre o uso de Geotecnologias no estudo de Bacias Hidrogrficas para professores da Educao Bsica  

E-print Network

Tutorial sobre o uso de Geotecnologias no estudo de Bacias Hidrogrficas para professores da of hydrographic basing degradation, a tutorial was developed for secondary school teachers to use in environmental education and other environmentally-based subjects. This tutorial gives them the possibility of performing

373

Regulamenta os procedimentos para a alocao de vagas docentes de Magistrio Superior da  

E-print Network

Universidade Federal do Rio de Janeiro. O Conselho de Ensino de Graduao (CEG) e o Conselho de Ensino para 2006; Considerando: a. que a admisso de professores na Universidade Federal do Rio de Janeiro um Universidade Federal do Rio de Janeiro; d. que o banco de professores-equivalente corresponder soma dos

Liu, I-Shih

374

Para-Professionals in Further Education: Changing Roles in Vocational Delivery  

ERIC Educational Resources Information Center

Roles and structures within further education colleges seem to be in constant change and development; roles are becoming blurred, and lecturers are taking on more management tasks. Alongside this has been the development of para-professional roles, using non-lecturers to undertake teaching tasks. This can allow for the greater involvement of

Scott, Gill

2005-01-01

375

Involvement of mitochondrial ferredoxin and para-aminobenzoic acid in yeast coenzyme Q biosynthesis  

E-print Network

1 Involvement of mitochondrial ferredoxin and para-aminobenzoic acid in yeast coenzyme QABA is a precursor of yeast coenzyme Q *Manuscript Click here to view linked References #12;2 Summary Yeast ubiquinone or coenzyme Q6 (Q6) is a redox active lipid with a crucial role in the mitochondrial electron

Boyer, Edmond

376

Computer-controlled radiation therapy machine for pelvic and para-aortic nodal areas  

Microsoft Academic Search

A computer-controlled radiation therapy technique has been developed to treat cancer of the uterine cervix that has extended to the pelvic and para-aortic lymph nodes. During five longitudinal scans with a 4 cm wide 8 MV X ray beam, conformation of the high dose region to the target volume was achieved primarily by varying the other field dimensions. Treatment planning

Lee M. Chin; Peter K. Kijewski; Gran K. Svensson; John T. Chaffey; Martin B. Levene; B. E. Bjaerngard

1981-01-01

377

Hacia un framework Orientado a Objetos para Bills of Materials Complejos  

Microsoft Academic Search

Las empresas de produccin industrial se enfrentan por un lado, a los cambios constantes de las condiciones del mercado, como po r ejemplo, los patrones de demanda, ciclo de vida de los productos mucho ms cortos, etc. Por otro, a un mercado global, que requiere que la cadena de suministros, alcance muy altos niveles de eficiencia. Para mantener la competitividad

Marcela Vegetti; Gabriela Henning; Horacio Leone

378

Um Instrumento para a Avaliao de Estressores Psicossociais no Contexto de Emprego  

Microsoft Academic Search

Resumo Os contextos onde se desenvolvem as atividades humanas apresentam caractersticas diferentes que tm importantes implicaes no momento da elaborao e aplicao de procedimentos de avaliao. O contexto de emprego muito importante para importantes setores de nossa populao. Moos desenvolveu um marco conceitual scio-ecolgico no qual a relao, entre os acontecimentos vitais estressantes e as condutas adaptativas, encontra-se influenciada

Nora Leibovich de Figueroa; Marta Schufer; Roberto Muios; Claudia Marro; Elizabeth Aranda Coria

2001-01-01

379

Metaheurstica algoritmo gentico para soluo de problemas de planejamento florestal com restries de integridade  

Microsoft Academic Search

2 RESUMO - Os objetivos deste trabalho foram desenvolver e testar um algoritmo gentico (AG) para a soluo de problemas de gerenciamento florestal com restries de integridade. O AG foi testado em quatro problemas, contendo entre 93 e 423 variveis de deciso, sujeitos s restries de singularidade, produo mnima e produo mxima, periodicamente. Todos os problemas tiveram como objetivo a

Flvio Lopes Rodrigues; Helio Garcia Leite; Heleno do Nascimentos Santos; Agostinho Lopes de Souza; Gilson Fernandes da Silva

2004-01-01

380

Diseo y evaluacin de una interfaz mvil para lectura de medidores de energa  

Microsoft Academic Search

El Instituto de Investigaciones Elctricas (IIE) havenido trabajando durante varios aos en el rea deAMR (Lectura Automtica de Medidores, por sus siglas eningls) as como en la deteccn del robo deenerga elctrica como lneasestratgicas para el desarrollo de infraestructura interna ytambin como respuesta a las demandas deautomatizacin de la Comisin Federal de Electricidad(CFE) y de la Compaa de Luz y

Vctor lvarez-Corts; Benjamn Zayas-Prez

2005-01-01

381

Desarrollo de un servidor HTTP para dispositivos moviles en J2ME  

Microsoft Academic Search

El protocolo HTTP viene siendo ampliamente utilizado desde el nacimiento de la web, en donde es indispensable para la creacion de aplicaciones que hacen uso deesta. Con la llegada de las tecnologias moviles pueden darse diversas situaciones en las que la creacion de un servidor HTTP en dispositivos limitados pueda resultar de gran utilidad. Un ejemplo, es la comparticion de

Guillermo Diez-Andino Sancho; Rosa Ma Garc; Celeste Campo

382

Reconocimiento de Palabras Aisladas Utilizando LPC Y DTW, para control de navegacin de un  

Microsoft Academic Search

ResumenLa utilizacin de herramientas computacionales, hardware y software con capacidades de desarrollo en torno al manejo de modelos bioinspirados gener la construccin de un minirobot mvil aplicando la caracterizacin de comandos de voz y el aprovechamiento de las capacidades de procesamiento paralelo ofrecidas por el gene digital para gobernar la correspondiente navegacin. A nivel general en la etapa de software

Y. Baquero; Z. Alezones

383

Esquema Adaptativo de Reserva para el Control de Admisin Jerrquico en Redes Mviles Celulares  

Microsoft Academic Search

Se propone un esquema adaptativo de reserva diseado para trabajar en cooperacin con la poltica de con- trol de admisin Multiple Guard Channel (MGC). El esquema ajusta los parmetros de configuracin de MGC mediante un seguimiento continuo de la calidad de servicio (QoS) percibida por el usuario y permite adaptar la poltica a cualquier combi- nacin de trfico entrante, permitiendo

David Garca Roger; Jorge Martnez

384

Irradiation of para-aortic lymph node metastases from carcinoma of the cervix or endometrium  

SciTech Connect

Twenty-two patients with biopsy-proved para-aortic lymph node metastases from carcinoma of the cervix (15 patients) or endometrium (7 patients) received a median dose of 5,000 rad/25 fractions. Para-aortic nodal metastases were controlled in 77% of cases. Control was significantly lower following radical retroperitoneal lymph node dissection than less extensive sampling procedures. Obstruction of the small bowel developed in 3 patients with tumor recurrence in the para-aortic region. Eight of the 10 patients who were disease-free at 2 years received >5,000 rad. Three patients were still alive without disease at 129, 63, and 60 months, respectively. The 5-year disease-free survival rate was 40% for cervical cancer and 60% for endometrial cancer: in the former group, it was significantly different depending on whether the para-aortic nodes were irradiated (40%) or not (0%). The authors suggest that 5,000-5,500 rad in 5-5.5 weeks is well tolerated and can control aortic nodal metastases in cervical and possibly endometrial cancer.

Komaki, R.; Mattingly, R.F.; Hoffman, R.G.; Barber, S.W.; Satre, R.; Greenberg, M.

1983-04-01

385

Control mioelctrico para movimientos en 2D de un manipulador robtico industrial  

Microsoft Academic Search

Resumen En este trabajo se describe un sistema de control mioelctrico de un manipulador robtico para la ejecucin de tareas sobre el plano x-y. Las seales mioelctricas provinieron de voluntarios sanos y especialmente de amputados de miembro superior conectadas mediante placas de acondicionamiento de seal y adquisicin digital al entorno MATLAB . Se compar el desempeo de parmetros descriptivos de

Natalia Lpez; Carlos Soria; Eugenio Orosco; Fernando di Sciascio; Mximo Valentinuzzi

386

Effect of the site of infusion of para-aminohippuric acid (PAH) on portal blood flow  

E-print Network

Effect of the site of infusion of para-aminohippuric acid (PAH) on portal blood flow LM Zeoula C requirements of animals. In this context, the determination of portal blood flow is critical. When dilution techniques are used for such measurements, eg using PAH, a homogeneous mixing of the marker in the blood

Paris-Sud XI, Université de

387

ADS -Accelerator Driven System -Uma tecnologia do futuro para a produo de energia nuclear  

E-print Network

ADS - Accelerator Driven System - Uma tecnologia do futuro para a produção de energia nuclear 1980, quando as restrições ligadas principalmente a possíveis catástrofes relacionadas à tecnologia nessa tecnologia, que poderá ser de grande importância num futuro não muito distante. 2 #12;

Ribas, Roberto Vicençotto

388

MINISTRIO DA CINCIA, TECNOLOGIA E INOVAO (MCTI) CONCURSO PBLICO PARA PROVIMENTO DE VAGAS EM CARGOS  

E-print Network

1 MINISTRIO DA CINCIA, TECNOLOGIA E INOVAO (MCTI) CONCURSO PBLICO PARA PROVIMENTO DE VAGAS EM DA CINCIA, TECNOLOGIA E INOVAO, tendo em vista o disposto na Portaria n 553, de 8 de dezembro de, Planejamento e Infraestrutura em Cincia e Tecnologia e da Carreira de Desenvolvimento Tecnolgico de que trata

389

LA ENERGA EN LA FORMACIN DE LOS SUELOS: ASPECTOS TERICOS Y METODOLGICOS PARA SU EVALUACIN  

Microsoft Academic Search

RESUMEN El suelo es un sistema abierto que tiende hacia un equilibrio dinmico acumulando y reciclando materia y energa a travs del tiempo. Mediante un balance energtico es posible evaluar la energa acumulada o la que circula a travs de su masa. Esta miscelnea tiene por objetivo presentar aspectos tericos y metodolgicos para cuantificar la energa dinamizada durante la formacin

AMRICO DEGIOANNI; ESTELA BRICCHI; EUGENIO HAMPP

2008-01-01

390

SISTEMA PARA GESTIONAR LA ACTIVIDAD CIENTFICA DEL DEPARTAMENTO DE INFORMTICA DE LA UNIVERSIDAD DE GUANTNAMO  

Microsoft Academic Search

El sistema para gestionar la actividad cientfica del Departamento de Informtica de la Universidad de Guantnamo surge debido a la necesidad de gestionar de manera ms rpida, 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

391

BIOCOMBUSTVEIS E COMRCIO INTERNACIONAL: OPORTUNIDADES E DESAFIOS PARA AMRICA LATINA E CARIBE  

Microsoft Academic Search

O grande desafio do mundo nos prximos anos ser convergir desenvolvimento econmico com sustentabilidade. Nesse sentido a busca para ampliar a participao de energias sustentveis nas matrizes energticas tanto pases de desenvolvidos como de pases em desenvolvimento dever cada vez sofrer mais presso da comunidade internacional. Nesse ambiente alguns pases da America Latina e Caribe podem beneficiar-se, j que possuem

Andr Luiz Marques Ks; Mario Miguel Amin Garcia Herreros; Heriberto Wagner Amanajs Pena

2011-01-01

392

ALTERNATIVAS PARA A GERAO DE ENERGIA RENOVVEL NO BRASIL: A OPO PELA BIOMASSA  

Microsoft Academic Search

Durante muito tempo, os recursos fsseis e hdricos foram os grandes propulsores da civilizao e da economia. O Brasil tambm se apoiou nessas fontes energticas para o desenvolvimento de atividades industriais, agrcolas, de servios e da prpria sociedade. Entretanto, vive-se hoje uma crise no abastecimento energtico, em funo da problemtica geopoltica, econmica e ambiental em torno da extrao e comercializao

Mariane Silva Marconato; Giuliana Aparecida Santini

2008-01-01

393

Modelo para la reduccin del ciclo de desarrollo de software basado en CMM. Francisco J. ALVAREZ.  

E-print Network

alto costo de implementacin de modelos y la disminucin de productividad en el perodo de aprendizaje: Calidad de Software, Procesos de desarrollo, CMM (Capability Maturity Model), KPA's (Key Process Areas desarrollo lograran el estandarizar procesos e incrementar la calidad de los productos. Para adoptar el CMM

Weitzenfeld, Alfredo

394

PROCEDIMIENTO PARA EL DIAGNSTICO DE LA LOGSTICA INTERNA APLICADO EN UNA EMPRESA DE SERVICIOS EXTRAHOTELEROS  

Microsoft Academic Search

En este trabajo se presenta un procedimiento para realizar el diagnstico de la logstica interna, el cual fue aplicado en una empresa de servicios extrahoteleros. A partir de su aplicacin se determin un banco de problemas teniendo en cuenta las principales dificultades encontradas, as como un conjunto de acciones que le permitieron a la entidad mejorar los niveles de eficiencia

Damaris Valds Ferrer

2012-01-01

395

PROCEDIMIENTO PARA LA PLANEACIN INTEGRAL DEL CAPITAL HUMANO EN ENTIDADES LOGSTICAS  

Microsoft Academic Search

Este trabajo tiene como objetivo proponer un procedimiento para la planeacin integral del capital humano aplicado a Empresas Logsticas, en el mismo se tienen en cuenta los principales enfoques modernos sobre el tema, integra las actividades relacionadas con el capital humano, aborda la perspectiva cuantitativa y cualitativa, los diferentes plazos de tiempo: corto, mediano y largo, con un enfoque estratgico;

Daniel Machado Labrada; Margarita de Miguel Guzmn; Clara Marrero Fornaris

2011-01-01

396

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

397

AOWE : una Metodologa Orientada a Aspectos para Desarrollo de Aplicaciones Web  

Microsoft Academic Search

Un enfoque para la separacion de intereses que ha cobrado cada vez mas importancia en la ultima decada es la orientacion a aspec- tos, debido a que permite evitar que un mismo interes este re?ejado en el dise~no en varios modulos o clases y que un mismo modulo o clase con- temple distintos intereses. Existe una carencia de metodos

Hernan Casalanguida; Juan Eduardo Duran

398

Desarrollo de Tcnicas Ultrasnicas para Seguimiento y Interaccin de la Marcha  

Microsoft Academic Search

En este trabajo se expone un sistema ultrasnico en desarrollo de captacin y seguimiento de la marcha que es empleado como entrada a un sistema de control en el que eventualmente los patrones de movimientos y posiciones constituyen realmente un medio de comunicacin ya sea de tipo general o bien para control natural de dispositivos de ayuda a la movilidad.

Anselmo Frizera; Rafael Raya; Juan C. Moreno; Ramn Ceres; Leopoldo Caldern

399

Limnological variables and macrophyte infestation in Tucuruı reservoir - Para - Brazil  

Microsoft Academic Search

This paper identified the relationship between aquatic macrophyte infestation and some limnological variables in Tucuruı reservoir, a hydroelectric power facility in Para State, northern Brazil. The spread of macrophyte stands jeopardizes environmental quality in many aspects since it is a natural habitat for the malaria vector; it is also an area of increased methane emission. On top of that, macrophyte

PEREIRA FILHO; E. M. Lde. M. Novo

2002-01-01

400

International Collaboration and Capacity Building at the Federal University of Para, Brazil: the Geoscience Cyberinfrastructure Journey  

Microsoft Academic Search

For over three decades, the Federal University of Para (UFPA) has been committed to building faculty and student capacity through national and international collaboration. Since the early 1980s, the Meteorology Department has actively participated in a large number of international scientific experiments in the Amazon region. One difficulty in the continuation of research after the field phase was data sharing

E. M. Cutrim; T. C. Yoksas; D. Nechet; J. Cohen

2006-01-01

401

Intact cluster and chordate-like expression of ParaHox genes in a sea star  

PubMed Central

Background The ParaHox genes are thought to be major players in patterning the gut of several bilaterian taxa. Though this is a fundamental role that these transcription factors play, their activities are not limited to the endoderm and extend to both ectodermal and mesodermal tissues. Three genes compose the ParaHox group: Gsx, Xlox and Cdx. In some taxa (mostly chordates but to some degree also in protostomes) the three genes are arranged into a genomic cluster, in a similar fashion to what has been shown for the better-known Hox genes. Sea urchins possess the full complement of ParaHox genes but they are all dispersed throughout the genome, an arrangement that, perhaps, represented the primitive condition for all echinoderms. In order to understand the evolutionary history of this group of genes we cloned and characterized all ParaHox genes, studied their expression patterns and identified their genomic loci in a member of an earlier branching group of echinoderms, the asteroid Patiria miniata. Results We identified the three ParaHox orthologs in the genome of P. miniata. While one of them, PmGsx is provided as maternal message, with no zygotic activation afterwards, the other two, PmLox and PmCdx are expressed during embryogenesis, within restricted domains of both endoderm and ectoderm. Screening of a Patiria bacterial artificial chromosome (BAC) library led to the identification of a clone containing the three genes. The transcriptional directions of PmGsx and PmLox are opposed to that of the PmCdx gene within the cluster. Conclusions The identification of P. miniata ParaHox genes has revealed the fact that these genes are clustered in the genome, in contrast to what has been reported for echinoids. Since the presence of an intact cluster, or at least a partial cluster, has been reported in chordates and polychaetes respectively, it becomes clear that within echinoderms, sea urchins have modified the original bilaterian arrangement. Moreover, the sea star ParaHox domains of expression show chordate-like features not found in the sea urchin, confirming that the dynamics of gene expression for the respective genes and their putative regulatory interactions have clearly changed over evolutionary time within the echinoid lineage. PMID:23803323

2013-01-01

402

Vicerrectorado de Profesorado, Titulaciones, Ordenacin Acadmica, Coordinacin y Campus.  

E-print Network

Mora Valentn, Eva Mara Si TECNICAS DE INVESTIGACION SOCIAL CUALITATIVAS Ciencias Sociales Sociologa Social Derecho del Trabajo y Seguridad Social Conde Marn, Emilia Si METODOLOGIA DE LA INVESTIGACION Garca Manso, Almudena Si TECNICAS DE INVESTIGACION SOCIAL CUANTITATIVAS Ciencias Sociales Sociologa

Rey Juan Carlos, Universidad

403

Vicerrectorado de Profesorado, Titulaciones, Ordenacin Acadmica, Coordinacin y Campus.  

E-print Network

Guadalupe Si TECNICAS DE INVESTIGACION SOCIAL CUALITATIVAS Ciencias Sociales Sociologa Garca Manso Informtica Martnez Garca, Miguel ngel No METODOLOGIA DE LA INVESTIGACION SOCIAL Ciencias Sociales, Almudena Si TECNICAS DE INVESTIGACION SOCIAL CUANTITATIVAS Ciencias Sociales Sociologa Barbeito Iglesias

Rey Juan Carlos, Universidad

404

Vicerrectorado de Profesorado, Titulaciones, Ordenacin Acadmica, Coordinacin y Campus.  

E-print Network

No TECNICAS DE INVESTIGACION SOCIAL CUALITATIVAS Ciencias Sociales Sociologa Garca Manso, Almudena Si LA INVESTIGACION SOCIAL Ciencias Sociales Sociologa Perell Oliver, Salvador Si CURSO 2 ASIGNATURA TECNICAS DE INVESTIGACION SOCIAL CUANTITATIVAS Ciencias Sociales Sociologa Barbeito Iglesias, Roberto

Rey Juan Carlos, Universidad

405

La Importancia De Las Ayudas Informticas Para Los Anlisis Ergonmicos En El Diseo Industrial. Caso: la implementacin de la silla sit-stand para las cajeras de supermercado en el estado de Quebec - Canad  

Microsoft Academic Search

El diseo industrial est estrechamente relacionado con las necesidades de los diferentes utilizadores (clientes) y con el desarrollo de nuevos productos; en este proceso para llegar a los resultados esperados, el diseador debe establecer las soluciones que deben satisfacer las necesidades encontradas. Para llegar a los objetivos, el producto debe ser pasado por diversas validaciones y verificaciones. Los anlisis ergonmicos

Alvaro Enrique Diaz

406

MECANISMOS PARA LA CREACIN DE HROES Y ANTI HROES PARA LA OPININ PBLICA INTERNACIONAL EN PERIODOS DE GUERRA HOW MEDIA CREATES HEROS AND ANTIHEROS FOR THE INTERNATIONAL PUBLIC OPINION IN WAR PERIODS  

Microsoft Academic Search

La intencin principal de esta investigacin es encontrar las claves que se utilizan a diario en los medios de comunicacin para crear, de cara a la opinin pblica, hroes y anti -hroes en periodos de crisis internacional como los que se vienen viendo desde el pasado 11 de septiembre. Para plantear esta investigacin partimos de dos ideas. La primera de

Garca Gordillo

407

Ancient origins of axial patterning genes: Hox genes and ParaHox genes in the Cnidaria.  

PubMed

Among the bilaterally symmetrical, triploblastic animals (the Bilateria), a conserved set of developmental regulatory genes are known to function in patterning the anterior-posterior (AP) axis. This set includes the well-studied Hox cluster genes, and the recently described genes of the ParaHox cluster, which is believed to be the evolutionary sister of the Hox cluster (Brooke et al. 1998). The conserved role of these axial patterning genes in animals as diverse as frogs and flies is believed to reflect an underlying homology (i.e., all bilaterians derive from a common ancestor which possessed an AP axis and the developmental mechanisms responsible for patterning the axis). However, the origin and early evolution of Hox genes and ParaHox genes remain obscure. Repeated attempts have been made to reconstruct the early evolution of Hox genes by analyzing data from the triphoblastic animals, the Bilateria (Schubert et al. 1993; Zhang and Nei 1996). A more precise dating of Hox origins has been elusive due to a lack of sufficient information from outgroup taxa such as the phylum Cnidaria (corals, hydras, jellyfishes, and sea anemones). In combination with outgroup taxa, another potential source of information about Hox origins is outgroup genes (e.g., the genes of the ParaHox cluster). In this article, we present cDNA sequences of two Hox-like genes (anthox2 and anthox6) from the sea anemone, Nematostella vectensis. Phylogenetic analysis indicates that anthox2 (= Cnox2) is homologous to the GSX class of ParaHox genes, and anthox6 is homologous to the anterior class of Hox genes. Therefore, the origin of Hox genes and ParaHox genes occurred prior to the evolutionary split between the Cnidaria and the Bilateria and predated the evolution of the anterior-posterior axis of bilaterian animals. Our analysis also suggests that the central Hox class was invented in the bilaterian lineage, subsequent to their split from the Cnidaria. PMID:11324016

Finnerty, J R; Martindale, M Q

1999-01-01

408

LA TERAPIA FACILITADA POR ANIMALES DE COMPAA COMO PROGRAMA DE REHABILITACIN ADJUNTO PARA PERSONAS CON DIAGNSTICO DE ESQUIZOFRENIA CRNICA  

Microsoft Academic Search

Coincidiendo con el surgimiento de la psiquiatra comunitaria, ha habido un progresivo proceso de desinstitucionalizacin de los pacientes psiquitricos; seleccionando a los menos discapacitados para los recursos comunitarios y dejando los pacientes con ms discapacidad al cuidado de las instituciones. La rehabilitacin pretende afrontar la discapacidad para realizar actividades, con la finalidad de mejorar la desventaja social consecuencia del deterioro

Victoria Villalta Gil; Susana Ochoa Gerre

2007-01-01

409

BUSCA LOCAL PARA POS-PROCESSAMENTO EM RESULTADOS DE OTIMIZAC~AO MULTI-OBJETIVO EM REDES DE FILAS  

E-print Network

BUSCA LOCAL PARA POS-PROCESSAMENTO EM RESULTADOS DE OTIMIZAC~AO MULTI-OBJETIVO EM REDES DE FILAS otimizac~ao de redes de filas finitas, a capacidade total do sistema em areas de espera deve ser a menor algoritmo simulated annealing foi desenvolvido, especialmente para redes de filas finitas, produzindo solu

Cruz, Frederico

410

Bacillus subtilis Soj (ParA): The involvement of DNA binding and dynamic localization in plasmid partitioning  

E-print Network

The ParA family of ATPases encompasses proteins with a wide variety of functions. The prototype of this family is the ParA ATPase from the P1 prophage plasmid, which, along with ParB and the parS binding site, is required for the faithful...

Hester, Christina Marie

2008-05-08

411

La UA dirige un programa para prevenir conductas adictivas en los ms jvenes a travs del deporte  

E-print Network

La UA dirige un programa para prevenir conductas adictivas en los más jóvenes a través del deporte la Diputación de Alicante, han puesto en marcha un programa para prevenir conductas adictivas y impacto y cambios de conducta en los jóvenes", explica Carreres. Juan M. Cortell, vicedecano de Ciencias

Escolano, Francisco

412

Thouless theorem for one and two degrees of freedom (Teorema de Thouless para um e dois graus de liberdade)  

Microsoft Academic Search

Realizamos uma demonstracao acess ivel do teorema de Thouless para um ou dois graus de liberdade, usando somente mecanica quantica elementar. Este teoremae especialmenteutil para encontrar o vacuo relativo au m conjunto de operadores bosonicos transformados. Outra motivacaoe a existencia de experimentos envolvendo ions capturados ou campos em eletrodinamica quantica de cavidades, usualmente modelados por osciladores harmonicos interagindo linearmente.

A. R. Bosco de Magalhaes; Avila Fonseca; M. C. Nemes

413

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO Edital de divulgao de Sesso Pblica para julgamento dos recursos interpostos da 1  

E-print Network

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO Edital de divulgao de Sesso Pblica para julgamento dos de Juiz Federal Substituto da 1 Regio O Presidente da Comisso do XIV Concurso Pblico para Provimento de Cargo de Juiz Federal Substituto da 1 Regio, no uso de suas atribuies, comunica que

Maier, Rudolf Richard

414

Characterization of the axon initial segment (AIS) of motor neurons and identification of a para-AIS  

E-print Network

Characterization of the axon initial segment (AIS) of motor neurons and identification of a para-AIS and a juxtapara-AIS, organized by protein 4.1B Duflocq et al. Duflocq et al. BMC Biology 2011, 9:66 http initial segment (AIS) of motor neurons and identification of a para-AIS and a juxtapara-AIS, organized

Paris-Sud XI, Université de

415

EVALUATION OF PARA-DICHLOROBENZENE EMISSIONS FROM SOLID MOTH REPELLANT AS A SOURCE OF INDOOR AIR POLLUTION  

EPA Science Inventory

Mothcakes made of para-dichlorobenzene have been widely available for the general population to be used as a moth repellant to protect garments from insect damage. Usually, a mothcake is expected to last for weeks or even months during which the para-dichlorobenzene emits slowly ...

416

Diseo y desarrollo del subsistema de deteccin y reaccin de una plataforma para la prevencin de ataques coordinados  

Microsoft Academic Search

Resumen. Uno de los requisitos imprescindibles para el xito en el comercio electrnico es el de proporcionar confianza y seguridad. A pesar del gran avance en este mbito, tales como sistemas cortafuegos, mecanismos de autenticacin y sistemas para la deteccin de intrusos, la mayora de las infraestructuras que respaldan el comercio electrnico son actualmente vulnerables a sufrir un gran nmero

Sergio Castillo; Joaqun Garca; Joan Borrell

417

Entornos Operativos para la Gestin de Recursos...Dept. d'Arquitectura de Computadors Execution Environments for  

E-print Network

Entornos Operativos para la Gestin de Recursos...Dept. d'Arquitectura de Computadors UPC Execution Environments for Parallel Applications Master CANS 2007/2008 Departament d'Arquitectura de Computadors Universitat Politcnica de Catalunya #12;Dept. d'Arquitectura de Computadors Entornos Operativos para la

Corbalan, Julita

418

Lmite de prazas para o curso 2014-2015 Consello de Goberno da UDC 27 de marzo de 2014  

E-print Network

Direccin de Empresas 180 180 Grao en Arquitectura 200 200 Grao en Arquitectura Tcnica 190 160(1) Grao en Arquitectura Tcnica 301 Simultaneidade de estudos dos Graos en CC. Empresariais e Turismo 30 30 DILIXENCIA e Arquitectura Tcnica. Ofrtanse 30 prazas para a simultaneidade e mantense 90 prazas para o grao

Fraguela, Basilio B.

419

Directrices de consenso en el campo de las microfinanzas: Definicin de trminos, coeficientes y ajustes financieros para las microfinanzas  

Microsoft Academic Search

El propsito de este documento es proponer una definicin estndar para cada uno de los trminos financieros seleccionados y plantear un mtodo comn de clculo para determinados coeficientes financieros. Fue producido en colaboracin entre el Banco Interamericano de Desarrollo (BID) y el Grupo Consultivo de Ayuda a la Poblacin ms Pobre (CGAP) del Banco Mundial, con los aportes de varias

Damian von Stauffenberg; Frank Abate; Tillman Bruett; Isabelle Barres; Robert Peck Christen; Richard Rosenberg; Dana de Kanter; Tor Jansson; Barry Lennon; Alice Negre; Sanjay Singha

2003-01-01

420

Mtodo de Prueba GAED: Tiempo ptimo para el Reemplazo de CAG en Plantas de Tratamiento de Agua Potable  

Microsoft Academic Search

l carbn activado granular (CAG) no dura para siempre en una planta de tratamiento de agua (PTA), su rendimiento no necesita ser monitoreado peridicamente, y deber ser reemplazado con CAG fresco, no usado o reactivado. El CAG usado, que se remueve, puede ser reactivado en plantas dedicadas a carbones de agua potable para ser retornado a la planta. Los reactivadores

Por Henry Nowicki; H. George Nowicki; Wayne Schuliger; Barbara Sherman

421

COMPARACIN DE VARIOS MTODOS PARA LA REPRESENTACIN CARTOGRFICA DE INFORMACIN CLIMTICA EN ZONAS ALTAS DEL ESTADO LARA  

Microsoft Academic Search

Se compararon tres mtodos cartogrficos diferentes para la representacin de aspectos climticos (temperatura y precipitacin) en zonas altas del estado Lara. Se us conjuntamente A) Representacin analgica (en papel), B) Mapas digitalizados de coberturas mediante el software para Sistema de Informacin Geogrfica (SIG) ArcInfo y C) Modelos numricos interpolados mediante software de aplicacin geoestadstica (SURFER), empleando el modelo de interpolacin

Jorge Lpez Mrquez; Rigoberto Andressen

2001-01-01

422

STRATIFIED\\/PCA: UN MTODO DE PROCESAMIENTO DE DATOS Y VARIABLES PARA LA CONSTRUCCIN DE MODELOS DE REDES NEURONALES  

Microsoft Academic Search

Resumen. Este artculo describe un mtodo para reducir observaciones y variables contenidas en grandes archivos de datos a nuevos conjuntos de datos cuyo tamao es mucho ms reducido. Estos nuevos conjuntos son confiables para mejorar tanto en calidad como en tiempo, la construccin de los modelos de redes neuronales. El mtodo, Stratified\\/PCA utiliza la tcnica de muestreo estratificado y anlisis

423

O recurso a veculos areos tripulados remotamente para realizar vrias tarefas, da investigao cientfica ao controlo de fronteiras,  

E-print Network

TECNOLOGIA DRONES PARA TODO O SERVI?O O recurso a veículos aéreos tripulados remotamente para privacidade aumentam TEXTOS DE ALEXANDRA SIM?ES DE ABREU FOTOGRAFIAS DE NUNO BOTELHO UAV, VANT, RPA, drones falar mais dos drones (zangões em portu- guês), nomeadamente com fins mi- litares -- podem realizar

Instituto de Sistemas e Robotica

424

Comienza la construccin de instalacin patrocinada por el NCI en Puerto Rico para realizar estudios clnicos sobre el cncer  

Cancer.gov

El gobierno de Puerto Rico ha destinado $196 millones de dlares para construir un hospital oncolgico de 287 000 pies cuadrados en San Juan, que contar con 96 camas. El nuevo hospital es el primero en su clase en la regin caribea y en l se llevarn a cabo tratamientos para el cncer y estudios clnicos.

425

Instrumentos para la conservacin de la Diversidad Biolgica y los HbitatsDiversidad Biolgica y los Hbitats  

E-print Network

Instrumentos para la conservacin de la Diversidad Biolgica y los HbitatsDiversidad Biolgica y. 5 de Biologa. 2011-12 Jess ngel Cuevas MorenoJess ngel Cuevas Moreno #12;Instrumentos para la. Principales impulsores de la prdida de Diversidad Biolgica y los hbitats Instrumentos de conservacin

Rodrguez, Miguel ngel

426

Zoneamento agrcola e poca de semeadura para trigo no Brasil Agricultural zoning and sowing dates for wheat in Brazil  

Microsoft Academic Search

Resumo - Um Programa de Zoneamento Agrcola para o Brasil, subsidiando a poltica de crdito e securidade rural, comeou a ser posto em prtica pelo Ministrio da Agricultura, Pecuria e Abastecimento (MAPA) a partir da safra de inverno de 1996, com a cultura de trigo no sul do Brasil. Este artigo apresenta uma sntese dos trabalhos sobre zoneamento agrcola para

Gilberto Rocca da Cunha; Joo Carlos Haas; Jaime Ricardo; Tavares Maluf; Paulo Henrique Caramori; Eduardo Delgado Assad; Hugo Jos Braga; Jurandir Zullo Jr; Cludio Lazzarotto; Srgio Gonalves; Marcos Wrege; Dionsio Brunetta; Srgio Roberto Dotto; Hilton Silveira Pinto; Orivaldo Brunini; Vera Magali; Radtke Thom; Srgio Luiz Zampieri; Aldemir Pasinato; Mrcia Barrocas Moreira Pimentel; Cristina Pandolfo

2001-01-01

427

Ambulacrarian prototypical Hox and ParaHox gene complements of the indirect-developing hemichordate Balanoglossus simodensis.  

PubMed

The Hox genes and its evolutionary sister, the ParaHox genes, are widely distributed among animals. Although it has been expected that hemichordates and echinoderms have a single set of Hox genes and most likely a single set of ParaHox genes, it is not known whether the ortholog of Hox8 is absent in hemichordates, and in turn, consensus view about Hox/ParaHox gene complements in hemichordates has not been established. In this study, we isolated either complete or nearly complete coding sequences of 12 Hox genes, including the ortholog of the Hox8 that has not been reported in the previous studies, and three ParaHox genes from the recently discovered indirect-developing acorn worm, Balanoglossus simodensis. Our data suggest that the ancestral hemichordate had intact complements of ambulacrarian prototypical Hox and ParaHox genes, consisting of 12 and three members, respectively. PMID:19669790

Ikuta, Tetsuro; Miyamoto, Norio; Saito, Yasunori; Wada, Hiroshi; Satoh, Nori; Saiga, Hidetoshi

2009-07-01

428

Realizacao domestica e escolar de foto e video 3D  

E-print Network

English: Industry does not give attention to the small domestic or professional market of digital technologies for 3D images. What was done on the XX century by using photographic film is not know available to the common people, though the facilities are even better. Some technique developed in Brasil twenty years ago and the use of conventional domestic photo or video cameras allows fot making pictures and films at home by using digital conversions for editing, and two-color goggles. The anaglyphic technique, the same NASA employs to show Mars images to the public, is not employed in Brazil yet. We must analize the reasons for that. Portugues: A industria nao tem dado atencao ao mercado domestico ou profissional de pequena escala nas novas tecnologias digitais para imagem 3D. O que foi feito ao longo do seculo XX usando filme fotografico nao esta hoje ao alcance das pessoas, sendo que a facilidade de uso e muito maior. Tecnicas desenvolvidas no Brasil ha mais de vinte anos, e o uso de simples cameras convencionais de fotografia e video permitem realizar fotos e filmes caseiros por meio de conversoes digitais na edicao e o uso de oculos bicolor. A tecnica anagifica, a mesma que a NASA usa para mostrar ao publico as imagens de Marte, por exemplo, nao teve espaco no Brasil ainda. Devemos analisar os motivos que podem estar influenciando e os caminhos para mudar isso.

Jose J. Lunazzi

2012-12-19

429

Saturns Tropospheric Temperatures and Para-Hydrogen Distribution from Ten Years of Cassini Observations  

NASA Astrophysics Data System (ADS)

Cassini/CIRS observations of Saturns 10-1400 cm-1 spectrum have been inverted to construct a global record of tropospheric temperature and para-hydrogen variability over the ten-year span of the Cassini mission. The data record the slow reversal of seasonal asymmetries in tropospheric conditions from northern winter (2004, Ls=293), through northern spring equinox (2009, Ls=0) to the present day (2014, Ls=60). Mid-latitude tropospheric temperatures have cooled by approximately 4-6 K in the south and warmed by 2-4 K in the north, with the seasonal contrast decreasing with depth. CIRS detected the north polar minimum 100-mbar temperatures 6-8 years after winter solstice, whereas the south polar maximum occurred 1-2 years after summer solstice, consistent with the lag times predicted by radiative equilibrium models. Warm polar cyclones and the northern hexagon persist throughout the mission, suggesting that they are permanent features of Saturns tropospheric circulation. The 200-mbar thermal enhancement (knee) that was strongest in the summer but weak or absent in winter in 2004-2006 (Fletcher et al., 2007, Icarus 189, p.457-478) has now shifted northward and is present globally in 2014, suggestive of radiative heating in Saturns tropospheric haze layer. Saturns para-H2 fraction, which serves as a tracer of both tropospheric mixing and the efficiency of re-equilibration between the ortho- and para-hydrogen states, is slowly altering: super-equilibrium conditions (para-H2 fraction exceeding equilibrium expectations and suggestive of subsiding airmasses) that dominated the southern summer hemisphere are now weakening, whereas the sub-equilibrium conditions (suggestive of uplift) of the northern winter are being replaced by equilibrium or super-equilibrium conditions in spring. The thermal knee and the para-H2 distribution are tracking both the increased spring illumination and the increasing tropospheric haze opacity of the springtime hemisphere observed via colour changes in visible light, suggesting a close connection between the tropospheric temperatures, para-H2 and haze characteristics.

Fletcher, Leigh N.; Irwin, Patrick G.; Sinclair, James; Giles, Rohini; Barstow, Joanna; Achterberg, Richard K.; Orton, Glenn S.

2014-11-01

430

A nanoparticle catalyst for heterogeneous phase para-hydrogen-induced polarization in water.  

PubMed

Para-hydrogen-induced polarization (PHIP) is a technique capable of producing spin polarization at a magnitude far greater than state-of-the-art magnets. A significant application of PHIP is to generate contrast agents for biomedical imaging. Clinically viable and effective contrast agents not only require high levels of polarization but heterogeneous catalysts that can be used in water to eliminate the toxicity impact. Herein, we demonstrate the use of Pt?nanoparticles capped with glutathione to induce heterogeneous PHIP in water. The ligand-inhibited surface diffusion on the nanoparticles resulted in a (1) H?polarization of P=0.25?% for hydroxyethyl propionate, a known contrast agent for magnetic resonance angiography. Transferring the (1) H?polarization to a (13) C?nucleus using a para-hydrogen polarizer yielded a polarization of 0.013?%. The nuclear-spin polarizations achieved in these experiments are the first reported to date involving heterogeneous reactions in water. PMID:25565403

Glggler, Stefan; Grunfeld, Alexander M; Ertas, Yavuz N; McCormick, Jeffrey; Wagner, Shawn; Schleker, P Philipp M; Bouchard, Louis-S

2015-02-16

431

Renormalization-group approach for para-hydrogen adsorbed on exfoliated graphite  

NASA Astrophysics Data System (ADS)

Heat-capacity measurements of para-hydrogen adsorbed on graphite were performed recently and revealed an interesting phase diagram similar to 4He. We report a renormalization-group study based on a three-state Potts model with vacancies which approximates the experimental situation. The resulting global phase diagram is in a three parameter space of pair-interaction constants and chemical potential as studied by Berker, Ostlund and Putnam. The Lennard-Jones or other effective potential between the para-H 2 adsorbed molecules determines the subspace relevant to this adsorbate. A method to calculate thermodynamic densities is discussed and the resulting temperature versus density diagram agrees well with the experiment.

Mello, E. V. L.; Carneiro, G. M.

1986-04-01

432

High dose para-aortic lymph node irradiation for gynecologic cancer: technique, toxicity, and results  

SciTech Connect

A technique for high dose (5600-6100 cGy) extended field irradiation to the para-aortic lymph nodes is described. Fourteen patients have been treated with this technique, of whom 10 have had histologic confirmation of para-aortic node metastases. With follow-up ranging from 11 to 78 months, 7 of 14 patients are alive and clinically cancer-free. Acute effects of extended field treatment on patient weight and circulating blood counts are analyzed, and late treatment morbidity assessed. The findings suggest that such treatment, executed with modern equipment and appropriate technique, is not significantly more hazardous than pelvic irradiation, and can result in a substantial probability of disease-free survival.

Russell, A.H.; Jones, D.C.; Russell, K.J.; Gerdes, A.J.; Figge, D.C.; Greer, B.E.; Tamimi, H.K.; Cain, J.M.

1987-02-01

433

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

PubMed Central

El objetivo fue identificar incentivos de atraccin y retencin en zonas rurales y distantes de Ayacucho, Per. Fueron realizadas entrevistas en profundidad con 80 mdicos, enfermeras, obstetras y tcnicos (20 por grupo) de las zonas ms pobres y con 11 funcionarios. No existen polticas sistemticas de atraccin y retencin de personal de salud en Ayacucho. Los principales incentivos, en orden de importancia, fueron mejoras salariales, oportunidades de formacin y capacitacin, estabilidad laboral y nombramiento, mejoras en infraestructura y equipos, e incremento del personal. Se mencionaron tambin mejoras en la vivienda y alimentacin, mayor cercana 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 disear polticas pblicas. Las iniciativas del Estado deben comprender procesos rigurosos de monitoreo y evaluacin, para asegurar que las mismas tengan el impacto deseado. PMID:22488318

Huicho, Luis; Canseco, Francisco Dez; Lema, Claudia; Miranda, J. Jaime; Lescano, Andrs G.

2014-01-01

434

H2CS abundances and ortho-to-para ratios in interstellar clouds  

NASA Technical Reports Server (NTRS)

Several H2CS ortho and para transitions have been observed toward interstellar molecular clouds, including cold, dark clouds and star-forming regions. H2CS fractional abundances f(H2CS) about 1-2 10 to the -9th relative to molecular hydrogen toward TMC-1, Orion A, and NGC 7538, and about 5 10 to the -10th for L134N are derived. The H2CS ortho-to-para ratios in TMC-1 are about 1.8 toward the cyanopolyyne peak and the ammonia peak, which may indicate the thermalization of H2CS on 10 K grains. A ratio of about 3, the statistical value, for Orion (3N, 1E) and NGC 7538 is derived, while a value of about 2 for Orion (KL) is found.

Minh, Y. C.; Irvine, W. M.; Brewer, M. K.

1991-01-01

435

Molecular Characterization of Neurally Expressing Genes in the Para Sodium Channel Gene Cluster of Drosophila  

PubMed Central

To elucidate the mechanisms regulating expression of para, which encodes the major class of sodium channels in the Drosophila nervous system, we have tried to locate upstream cis-acting regulatory elements by mapping the transcriptional start site and analyzing the region immediately upstream of para in region 14D of the polytene chromosomes. From these studies, we have discovered that the region contains a cluster of neurally expressing genes. Here we report the molecular characterization of the genomic organization of the 14D region and the genes within this region, which are: calnexin (Cnx), actin related protein 14D (Arp14D), calcineurin A 14D (CnnA14D), and chromosome associated protein (Cap). The tight clustering of these genes, their neuronal expression patterns, and their potential functions related to expression, modulation, or regulation of sodium channels raise the possibility that these genes represent a functionally related group sharing some coordinate regulatory mechanism. PMID:8849894

Hong, C. S.; Ganetzky, B.

1996-01-01

436

Development of an integrated remote monitoring technique and its application to para-stressing bridge system  

NASA Astrophysics Data System (ADS)

Bridge monitoring system via information technology is capable of providing more accurate knowledge of bridge performance characteristics than traditional strategies. This paper describes not only an integrated Internet monitoring system that consists of a stand-alone monitoring system (SMS) and a Web-based Internet monitoring system (IMS) for bridge maintenance but also its application to para-stressing bridge system as an intelligent structure. IMS, as a Web-based system, is capable of addressing the remote monitoring by introducing measuring information derived from SMS into the system through Internet or intranet connected by either PHS or LAN. Moreover, the key functions of IMS such as data management system, condition assessment, and decision making with the proposed system are also introduced in this paper. Another goal of this study is to establish the framework of a para-stressing bridge system which is an intelligent bridge by integrating the bridge monitoring information into the system to control the bridge performance automatically.

Miyamoto, Ayaho; Motoshita, Minoru; Casas, Joan R.

2013-12-01

437

EL PROGRAMA CITI: UNA ALTERNATIVA PARA LA CAPACITACIN EN TICA DE LA INVESTIGACIN EN AMRICA LATINA  

PubMed Central

El Programa CITI (Collaborative Institutional Training Initiative) es un curso basado en Internet y desarrollado por voluntarios, que brinda material educacional sobre proteccin de sujetos humanos en investigaciones biomdicas y de conducta, buenas prcticas clnicas, conducta responsable de la investigacin y trato humanitario a animales de laboratorio. Es un esfuerzo conjunto del Fred Hutchinson Cancer Research Center y la Universidad de Miami. Con la colaboracin de expertos locales, gran parte del contenido se ha adaptado para Amrica Latina, se ha traducido al espaol y portugus y se han establecido acuerdos de colaboracin con instituciones especializadas en biotica en Chile, Brasil, Costa Rica y Per. Los autores presentan una metodologa accesible para la capacitacin en tica de la investigacin y una justificacin de su uso y difusin en Amrica Latina PMID:21687817

Litewka, Sergio; Goodman, Kenneth; Braunschweiger, y Paul

2011-01-01

438

Desarrollo de un receptor polarimtrico en banda S para aplicacin en estudios radioastronmicos  

NASA Astrophysics Data System (ADS)

Desde el punto de vista tecnolgico, el objetivo principal de este proyecto es desarrollar un cabezal de receptor en la frecuencia de 3.3 GHz, con una temperatura del sistema de 60 K y un ancho de banda de 140 MHz. El mismo ser instalado en el foco primario de un reflector parablico de 30 metros de dimetro que funcionar como radimetro en el IAR. El receptor es del tipo polarimtrico, con lo cual permite la posibilidad de obtener las componentes de polarizacin lineal y circular. Para tal fin el cabezal constar de dos ramas receptoras que amplificarn la seal y la trasladarn a una frecuencia menor, (frecuencia intermedia), permitiendo de esa forma un mejor transporte de la seal a la sala de control para su posterior procesamiento. El receptor, adems de tener caractersticas polarimtricas, podr ser usado en el contnuo y en la lnea, utilizando las ventajas observacionales y de procesamiento de seal que actualmente posee el IAR.

Barberis, C. M.; Bava, J. A.; Sanz, A. J.

439

Kinetic energy of solid and liquid para-hydrogen: a path integral Monte Carlo simulation  

NASA Astrophysics Data System (ADS)

The translational (center of mass) kinetic energy of solid and liquid para-hydrogen have been recently measured by means of Deep Inelastic Neutron Scattering. We have evaluated the same quantity, in similar thermodynamic conditions, by means of Path Integral Monte Carlo computer simulation, modelling the system as composed of a set of spherical molecules interacting through a pairwise additive Lennard-Jones potential. In spite of the crude approximations on the interaction potential, the agreement is excellent. The pressure was also computed by means of the same simulations. This quantity, compared with the equation of state for solid para-hydrogen given by Driessen and Silvera, gives an agreement of a lesser quality and a negative value for the liquid state. We attribute this discrepancy to the limitations of the Lennard-Jones potential.

Zoppi, Marco; Neumann, Martin

1992-06-01

440

Improvement of some pharmaceutical properties of mycophenolate mofetil (MMF) by para sulphonatocalix[4]resorcinarene inclusion complex  

Microsoft Academic Search

As a part of our investigations to unfold the chemistry of calixresorcinarene, we have focused on the formation of inclusion\\u000a complex of a poorly soluble (43?gml?1 at pH 7) drug mycophenolate mofetil (MMF) an immunosuppressive agent and an inosine monophosphate dehydrogenase (IMPDH) inhibitor\\u000a with para sulphonatocalix[4]resorcinarene (PSC4R). The complete complexation of the drug was achieved after 48h of stirring\\u000a with

Shobhana K. Menon; Nishith R. Modi; Bhoomika Mistry; Kuldeep Joshi

2011-01-01

441

Programao 1 Encontro para Estudos em Polticas e Prticas de Educao Ambiental  

E-print Network

Programação 1º Encontro para Estudos em Políticas e Práticas de Educação Ambiental 14:00 às 14:20 - A unidade curricular Políticas de Educação Ambiental no contexto da proposta interdisciplinar do Projeto Pedagógico do Curso de Bacharelado em Ciência Ambiental do Instituto de Geociências - Profa. Patricia Almeida

Souza, Max O.

442

NMR Imaging of Catalytic Hydrogenation in Microreactors with the Use of paraHydrogen  

Microsoft Academic Search

Catalysis is vital to industrial chemistry, and the optimization of catalytic reactors attracts considerable resources. It has proven challenging to correlate the active regions in heterogeneous catalyst beds with morphology and to monitor multistep reactions within the bed. We demonstrate techniques, using magnetic resonance imaging and para-hydrogen (p-H2) polarization, that allow direct visualization of gas-phase flow and the density of

Louis-S. Bouchard; Scott R. Burt; M. Sabieh Anwar; Kirill V. Kovtunov; Igor V. Koptyug; Alexander Pines

2008-01-01

443

Injection Molding Poly(Para-phenylene) with a Rapidly Heated Mold  

Microsoft Academic Search

Poly(para-phenylene), a self-reinforced rigid-chain polymer, has superb mechanical properties. Its use as a thermoplastic polymer in injection molding, however, is prohibited because of its extremely high viscosity. In this study, an injection molding process with a rapidly heated mold was used to enhance the moldability. The mold can be heated from room temperature to 250C in 5s and thermally cycled

Thomas E. Kimerling; Donggang Yao; Byung H. Kim

2009-01-01

444

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

NASA Astrophysics Data System (ADS)

O detector de ondas gravitacionais Mario Schenberg est sendo projetado e construdo pelo grupo Grviton. Sua construo est ocorrendo no Laboratrio de Estado Slido e Baixas Temperaturas (LESBT) da Universidade de So Paulo, na cidade de So Paulo. Esse detector possui uma massa ressonante esfrica de cobre-alumnio, com 65 cm de dimetro, pesando aproximadamente 1150 Kg, suspensa por um sistema de isolamento vibracional, que se encontra em fase de testes preliminares. A real eficcia desse sistema, entretanto, s poder ser comprovada quando o detector estiver aparelhado com, pelo menos, um transdutor eletromecnico de altssima sensibilidade acoplado massa ressonante. Neste momento, no s este sistema de isolamento vibracional ser posto em teste, como o do projeto da fiao que transporta os sinais de microondas at os transdutores e destes para a pr-amplificao. Apesar dessa fiao ter sido projetada para no apresentar nenhum contato com a superfcie esfrica da antena, de maneira a no haver nenhuma transmisso de rudo vibracional do laboratrio para esta, deve-se minimizar o rudo microfnico produzido nessa fiao por oscilaes mecnicas, uma vez que ela no 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 no ter nenhuma ressonncia mecnica na faixa de freqncias de interesse para deteco (3000 - 3400 Hz). Desta forma, as vibraes nessa faixa no sero amplificadas. O projeto foi feito usando iterativamente, de maneira a otimizar os resultados obtidos, o programa de elementos finitos Msc/Nastran. Atravs de simulaes feitas neste programa, determinamos os parmetros geomtricos ideais a serem utilizados, os quais proporcionam a maior regio espectral de interesse livre de ressonncias.

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

2003-08-01

445

Modelos auxiliares para problemas de programacion lineal con coeficientes imprecisos en las restricciones  

Microsoft Academic Search

ResumenEn este artculo se considera un problema de Programacin Lineal en el que los coeficientes del sistema de inecuaciones lineales,\\u000a que definen el conjunto de restricciones, estn dados de forma imprecisa o vaga. Se supone entonces que tales coeficientes\\u000a pueden ser definidos mediante nmeros difusos. Se propone un enfoque de resolucin basado en las distintas versiones existentes\\u000a para la comparacin

L. Campos; J. L. Verdegay

1989-01-01

446

Un Marco No-Monotonico para Representar Intenciones Bajo un Modelo BDI  

E-print Network

- vas, est´an ´intimamente relacionadas con las creencias y los planes, al tiempo que proveen elementos posibilidades l´ogicas leg´itimas. As´i, resulta ilustrativo notar que aunque el cambio de creencias sobre la,8,12,16], llevando a teor´ias de revisi´on de creencias y l´ogicas no-monot´onicas para creencias, los #12;2 procesos

Guerra Hernández, Alejandro

447

Calendrio escolar para o ano lectivo 2006/2007 1 SEMESTRE  

E-print Network

de Curso) Período de Aulas do 1º Ano: Segunda-feira, dia 25 de Setembro de 2006, a Sexta-feira, dia, a Quinta-feira, dia 14 de Setembro de 2006 ?poca Especial de Exames referente ao ano de 2006/2007 SegundaCalendário escolar para o ano lectivo 2006/2007 1º SEMESTRE Período de Aulas (excepto 1ºano

Ribeiro,Isabel

448

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

449

Lanzamiento del estudio de tratamiento personalizado para el cncer de seno  

Cancer.gov

Hoy se inici el Estudio de Asignacin de Opciones Individualizadas de Tratamiento (Trial Assigning IndividuaLized Options for Treatment (Rx), o TAILORx, el cual evaluar si los genes que estn frecuentemente asociados con el riesgo de recurrencia entre las mujeres con cncer de seno en etapa inicial pueden ser utilizados para asignar a las pacientes el tratamiento ms adecuado y efectivo. Preguntas y respuestas

450

Aplicando Metodos de Aprendizaje Sensible al Coste para Mejorar Problemas de Big Data  

E-print Network

ecnicas de mineria de datos no estan bien preparadas para afrontar los requerim- ientos de tiempo y espacio datos y las tecnologias de mineria de datos han quedado desbordados por no poder hacer frente a dichas,vlopez,j.m.benitez,herrera}@decsai.ugr.es Abstract. Debido a la explosion y proliferacion de datos en los ultimos a~nos, surge la necesidad de

Granada, Universidad de

451

Propuesta de Diseo para la Gestin Colaborativa del Conocimiento Mediante Informacin Semntica  

Microsoft Academic Search

ABSTRACT Uno,de los ,efectos indeseables ,de la ,introduccin de las tecnologas de la informacin y las comunicaciones, Internet y la Web ha sido ,la sobrecarga ,de informacin. Se estn buscando soluciones,a este ,problema ,desde ,distintos campos ,de investigacin, Gestin del Conocimiento, Minera de Informacin, Web Semntica, etc. Una hiptesis interesante para buscar soluciones a este problema,en el mbito de los

Jaime Moreno Llorena; Xavier Alamn Roldn; Ruth Cobos Prez

452

Solvatochromism and preferential solvation of para -derivatives of guaiacol in water-N,N-dimethylformamide mixtures  

Microsoft Academic Search

The influence of the composition of the water-N,N-dimethylformamide mixed solvent on the position of the B absorption band\\u000a in UV spectra of 2-methoxyphenol, its para-substituted derivatives, and corresponding phenolate anions simulating base units of natural lignin is investigated. The\\u000a data obtained are interpreted in terms of the model of preferential solvation. The preferential solvation parameters and compositions\\u000a of the solvation

D. S. Kosyakov; N. S. Gorbova; K. G. Bogolitsyn; L. V. Gusakov

2007-01-01

453

Exito para el XVI Festival Internacional de Teatro Hispano del Teatro Avante  

E-print Network

Nueva York del 20 al 30 de junio 2001 en el New 42nd Street Studios logr traer maravillosos representantes del teatro latinoamericano y espaol contemporneo. En Miami el programa incluy: Cenizas sobre el mar (Colombia/Miami), La ciudad sitiada...) y Melodrama (Brasil). Y hubo tres obras de teatrodanza: Jacinta-todas las plegarias (Ecuador/EEUU), Seque volvers (Colombia) y Materia (Brasil). Por ltimo el Teatro Taller de Colombia present Los cngaros, obra para espacios abiertos pblicos...

Marrero, Marí a Teresa

2002-04-01

454

ltima Hora Seminario Orientacin para Mayores de 25 Aos NOTICIAS Y EVENTOS  

E-print Network

Alumnos/as para las sesiones del 14 al 28 de marzo (Publicada 10/03/2014) Importante: El aula común de la Primer Apellido y Aula del Aulario II de 16 a 19 horas: Aula Desde Hasta C02 A L C03 M Z 19.30 - 21.00 : Los alumnos que deseen asistir a la clase sobre el manejo del Campus Virtual deberán acudir a las

Escolano, Francisco

455

Mitotic Haploidization by Treatment of Aspergillus niger Diploids with para-Fluorophenylalanine  

Microsoft Academic Search

IN genetic analysis based on mitotic segregation1-4 an important step is the recovery of haploid segregants from heterozygous diploids. This has been done until recently by laborious or complicated techniques4,5. I am indebted to Dr. G. Morpurgo, of the Istituto Superiore di Sanit, Rome, for informing me and permitting me to make use of his discovery that treatment with para-fluoro-phenylalanine

Pol Lhoas

1961-01-01

456

Natural bond orbital (NBO) population analysis of para-substituted S-Nitroso-thiophenols  

Microsoft Academic Search

Theoretical study of several para-substituted S-Nitroso-thiophenols has been performed using quantum computational ab initio RHF and density functional B3LYP and B3PW91 methods with 6-31G(d,p) basis set. Geometries obtained from DFT calculations were used to perform NBO analysis. It is noted that the weakness in the SN sigma bond is due to nO1??S3N2? delocalisation and is responsible for the longer SN

Li Xiao-Hong; Tang Zheng-Xin; Zhang Xian-Zhou

2009-01-01

457

An Unusual Case of Bilateral Maxillary and Mandibular Para Premolar: A Case Report  

PubMed Central

The presence of supernumerary teeth is not uncommon in the general population. They occur more frequently in patients with a family history of such teeth. It is rare to find multiple supernumeraries in individuals with no other associated disease or syndrome. There have been very few documented cases of bilateral maxillary and mandibular supernumeraries in the premolar region. An unusual case of a 35-year-old man with six para premolars and complete dentition is presented. PMID:24396358

Chanagay, Sunil Kumar Vishwanath; Singh, Vikram; Bantwal, Sunil Rao; Muniyappa, Manjunatha

2013-01-01

458

ACADEMIA DE POLCIA CIVIL CONCURSO PBLICO PARA PROVIMENTO DE VAGAS E FORMAO DE CADASTRO DE RESERVA  

E-print Network

ACADEMIA DE POLÍCIA CIVIL CONCURSO P?BLICO PARA PROVIMENTO DE VAGAS E FORMA??O DE CADASTRO DE ACADEMIA DE POLÍCIA CIVIL DO DISTRITO FEDERAL (APCDF), no uso de suas atribuições legais, torna pública inalterados os demais itens e subitens do referido edital. SANDRA GOMES MELO Diretora da Academia de Polícia

Maier, Rudolf Richard

459

Oficinas aprovadas OF1 Ensino de portugus como segunda lngua: uma abordagem bilngue para surdos  

E-print Network

(HQ's): análise de livros didáticos de ensino de Espanhol/LE Carolina Parrini Ferreira e Camila no ensino de E/LE; ii) analisar o uso do gênero HQ em livros didáticos para o ensino de E/LE; iii) propor tem o potencial de dar vida ao livro didático, através da criação de personagens e contações. Propomos

460

Contribuio dos fatores de risco psicossociais para o transtorno de dficit de ateno\\/hiperatividade  

Microsoft Academic Search

RESUMO - Objetivo: Analisar a contribuio dos fatores psicossociais para a ocorrncia do transtorno de dficit de ateno\\/hiperatividade (TDAH).M t o d o:Este um estudo retrospectivo de casos-controles que analisou 403 alunos de uma escola pblica primria. Preencheram-se o questionrio de sintomas do DSM- IV e um questionrio psicossocial especfico e realizaram-se anamnese e exames fsico e neurolgico

Marcio M. Vasconcelos; Ana Flvia de A. Malheiros; Jairo Werner Jr.; Adriana R. Brito; Jane Bardawil Barbosa; talo S. Oliveira Santos; Daniel Fampa N. Lima

2005-01-01

461

Stable self-trapping and ring formation in polydiacetylene para-toluene sulfonate  

NASA Astrophysics Data System (ADS)

Numerical simulations of two-dimensional beam propagation in polydiacetylene para-toluene sulfonate measured values for n2>0 and n3<0 , where Delta n=n2I+n 3I2 , predict stable self-trapping and a new phenomenon in which a spatial ring evolves from a Gaussian input beam. We interpret the numerical results theoretically, using the variational model of nonlinear Gaussian beam propagation.

Wright, Ewan M.; Lawrence, Brian L.; Torruellas, William; Stegeman, George

1995-12-01

462

RETROANLISE NEURAL PARA A IDENTIFICAO DOS PARMETROS ELSTICOS DA BARRAGEM CASCA DE FUNIL.  

E-print Network

1 RETROANÁLISE NEURAL PARA A IDENTIFICA??O DOS PAR?METROS ELÁSTICOS DA BARRAGEM CASCA DE FUNIL trabalho utiliza­se uma rede neural na identificação dos parâmetros elásticos dos materiais da casca e do maciço de fundação da barragem de Funil, a partir das medições efetuadas em cinco pontos instrumentados

Coutinho, Alvaro L. G. A.

463

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior  

E-print Network

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior António Cruz Serra tomou posse como reitor da nova universidade que resulta da fusão da Clássica com a Técnica. Cruz Serra reitor da Universidade de Lisboa (UL), resultante da fusão entre a Clássica e a Técnica, falou nesta

Instituto de Sistemas e Robotica

464

Design, synthesis and structure of novel para-quinones and their antibacterial activity.  

PubMed

Eight new para-quinones and one known analogue have been synthesized from p-chloranil. Five have been structurally characterized by single crystal diffraction, and a range of ligand folding is observed. All nine have been tested for their potency towards Gram(+) S.aureus and Gram(-) E.coli. Quinones 3, 6, 7 and 8 have shown activity towards S.aureus and quinones 3 and 8 also show good activity towards E.coli. PMID:21756289

Pandurangan, Komala; Murnaghan, Kevin D; Walshe, Aurora; Mller-Bunz, Helge; Paradisi, Francesca; Morgan, Grace G

2011-11-01

465

UM MODELO PARA RECOMENDAO DE ARTIGOS ACADMICOS BASEADO EM FILTRAGEM COLABORATIVA APLICADO AMBIENTES MVEIS  

Microsoft Academic Search

Resumo. Sistemas de Recomendao (SR) so hoje amplamente utilizados, principalmente na rea de e-commerce como, por exemplo, Amazon.com e Submarino.com. Neste trabalho, prope-se a utilizao destes sistemas na educao, especificamente para a recomendao de contedo em dispositivos mveis. A vantagem de se utilizar sistemas de recomendao em dispositivos mveis est na facilidade da entrega da recomendao aos usurios. Com base

Slvio Csar Cazella

466

4-Amino-12-methylsulfonyloxy-[2.2]paracyclophane  

PubMed Central

The title compound, C17H19NO3S, was synthesized from 4-benzhydrylideneamino-12-hydroxy-[2.2]paracyclophane and methanesulfonyl chloride. In the molecule, the distance between the centroids of two aromatic rings is 2.960?(5)?. In the crystal, weak NH?O and CH?O hydrogen bonds link the molecules into layers parallel to the ac plane. PMID:24526969

Meng, Xiangchao; Duan, Wenzeng; Han, Yinfeng

2014-01-01

467

Spontaneous rearrangement of para-sexiphenyl crystallites into nano-fibers  

Microsoft Academic Search

In the growth of para-sexiphenyl films on mica(001), an interesting phenomenon was observed where small individual crystallites\\u000a spontaneously arrange into parallel running high-aspect ratio chains with a length in the micrometer range. A statistical\\u000a analysis of the chain dimensions reveals a very narrow length distribution and the existence of a threshold length. The observation\\u000a of denuded zones around the chains

C. Teichert; G. Hlawacek; A. Yu. Andreev; H. Sitter; P. Frank; A. Winkler; N. S. Sariciftci

2006-01-01

468

El Grupo Actoral 80: Una alternativa para la integracin latinoamericana en el teatro  

E-print Network

Adjunto y uno de sus idelogos principales) y reconocido oficialmente como grupo de teatro de la institucin. EL GA '80: EL ACTOR Y LA INTEGRACIN LATINOAMERICANA Pero el hecho de que actores de distintas nacionalidades latino americanas (boliviana... sesiones de reflexin terica (conducidas por Gene), decidi convertir la integracin latino americana en uno de los ejes orientadores para su actividad, en su alternativa frente al Teatro, en su ideologa. Not tambin que la reunin de distintas...

Herná ndez, Alex

1988-04-01

469

Quantum chemical and experimental study of 1,2,4-trihydroxy-para-menthane  

NASA Astrophysics Data System (ADS)

The conformational analysis of the para-menthane (PM) and 1,2,4-trihydroxy-para-menthane (TPM) is performed using the quantum chemical density functional theory (DFT) and ab initio Mller-Plesset perturbation theory up to the second order (MP2). In TPM, three hydroxyl groups generate eight stereoisomers comparing to the four para-menthane stereoisomers. From the thermodynamics point of view, the most preferred conformations show the chair-shaped configuration of the cyclohexane ring. The obtained energy barriers for the isopropyl group rotation in the chair-shaped stereoisomers are between 35 and 45 kJ mol-1. The crystal structure as well as the solvated TPM stereoisomer isolated from the Tea tree oil, Melaleuca alternifolia (Maiden & Betche) Cheel, were investigated experimentally. Isolated stereoisomer corresponds to the most energetically preferred conformation and the calculated structural data agree very well with the results from the X-ray and nuclear magnetic resonance measurements. Finally, the influence of the conformation and the presence of the intramolecular hydrogen bonds on the homolytic Osbnd H bond dissociation enthalpies and proton affinities were also discussed with respect to the simple alcohols (methanol, iso-propanol, iso-pentanol, tert-butanol, cyclohexanol) and phenol.

Rottmannov, Lenka; Luke, Vladimr; Il?in, Michal; Fodran, Peter; Herich, Peter; Koek, Jozef; Liptaj, Tibor; Klein, Erik

2013-10-01

470

Atlas de aves: Un metodo para documentar distribucion y seguir poblaciones  

USGS Publications Warehouse

Los Atlas de Aves son proyectos nacionales o regionalies para trazar en mapas la distribucion en reproduccion de cada especie de ave. Ese procedimiento se esta usando en Europa, Australia, Nueva Zelanda, Norteamerica, y partes de Africa. El tama?o de los cuadrados varia de medio grado de latitud y Iongitud hasta 5 x 5 km. El trabajo de campo de cada proyecto exige aproxlmadamente cinco a?os, pero los aficionados pueden llevar a cabo la mayor parte del trabajo. Es posible almacenar los resultados en un computador personal. Hay muchos beneficios: (I) se presenta la distribucion corriente de las aves de la nacion, del estado, o de la Iocalidad; (2) se desarrolla nueva informacion especialmente sobre especies raras o en peligro; (3) se descubren areas que tienen una avlfauna sobresaliente o habitats raros y ayuda a su proteccion, (4) se documentan cambios de dlstribucion; (5) se pueden usar para documentar cambios de poblacion, especialmente en los tropicos donde otros metodos son mas dificiles de usar porque hay muchas especies y no hay muchos observadores calificados en la identificacion de sonidos de las aves; (6) son proyectos buenos de investigacion para estudiantes graduados; (7) los turistas y los jefes de excursiones de historia natural pueden contribuir con muchas informaciones

Robbins, C.S.; Dowell, B.A.; Dawson, D.K.

1988-01-01

471

Para-GMRF: parallel algorithm for anomaly detection of hyperspectral image  

NASA Astrophysics Data System (ADS)

The hyperspectral imager is capable of collecting hundreds of images corresponding to different wavelength channels for the observed area simultaneously, which make it possible to discriminate man-made objects from natural background. However, the price paid for the wealthy information is the enormous amounts of data, usually hundreds of Gigabytes per day. Turning the huge volume data into useful information and knowledge in real time is critical for geoscientists. In this paper, the proposed parallel Gaussian-Markov random field (Para-GMRF) anomaly detection algorithm is an attempt of applying parallel computing technology to solve the problem. Based on the locality of GMRF algorithm, we partition the 3-D hyperspectral image cube in spatial domain and distribute data blocks to multiple computers for concurrent detection. Meanwhile, to achieve load balance, a work pool scheduler is designed for task assignment. The Para-GMRF algorithm is organized in master-slave architecture, coded in C programming language using message passing interface (MPI) library and tested on a Beowulf cluster. Experimental results show that Para-GMRF algorithm successfully conquers the challenge and can be used in time sensitive areas, such as environmental monitoring and battlefield reconnaissance.

Dong, Chao; Zhao, Huijie; Li, Na; Wang, Wei

2007-12-01

472

Madres para la Salud: Design of a Theory-based Intervention for Postpartum Latinas  

PubMed Central

Background Weight gain in young women suggests that childbearing may be an important contributor to the development of obesity in women. Depressive symptoms can interfere with resumption of normal activity levels following childbirth or with the initiation of or adherence to physical activity programs essential for losing pregnancy weight. Depression symptoms may function directly to promote weight gain through a physiologic mechanism. Obesity and its related insulin resistance may contribute to depressed mood physiologically. Although physical activity has well-established beneficial effects on weight management and depression, women tend to under participate in physical activity during childbearing years. Further, the mechanisms underpinning the interplay of overweight, obesity, physical activity, depression, and inflammatory processes are not clearly explained. Objectives This report describes the theoretical rationale, design considerations, and cultural relevance for Madres para la Salud [Mothers for Health]. Design and Methods Madres para la Salud is a 12 month prospective, randomized controlled trial exploring the effectiveness of a culturally specific intervention using bouts of physical activity to effect changes in body fat, systemic and fat tissue inflammation, and postpartum depression symptoms in sedentary postpartum Latinas. Summary The significance and innovation of Madres para la Salud includes use of a theory-driven approach to intervention, specification and cultural relevance of a social support intervention, use of a Promotora model to incorporate cultural approaches, use of objective measures of physical activity in post partum Latinas women, and the examination of biomarkers indicative of cardiovascular risk related to physical activity behaviors in postpartum Latinas. PMID:21238614

Keller, Colleen; Records, Kathie; Ainsworth, Barbara; Belyea, Michael; Permana, Paska; Coonrod, Dean; Vega-Lpez, Sonia; Nagle-Williams, Allison

2011-01-01

473

Interstellar processes: Ortho/para conversion, radiative association, and dissociative recombination  

NASA Astrophysics Data System (ADS)

The study of the ortho-to-para ratio of assorted gas-phase interstellar molecules such as H2, H2O, NH3, and H2O+ has gained interest in recent years, based partially on new spectral observations of light hydrides by the Herschel Space Observatory. Although these ratios can yield valuable information about the thermal history of the interstellar cloud where the molecules are found, an understanding of how the ratios are determined involves a number of often poorly studied processes, which can include both gas-phase and grain-surface reactions. In this article, we consider the processes that determine the ortho-to-para ratio of the molecular ion H2O+ in diffuse interstellar clouds and attempt to reproduce an unusual observed ratio for this ion. In addition to the study of ortho-to-para ratios, we look carefully at current uncertainties in the gas-phase formation of large neutral molecules in cold dense interstellar clouds via ion-neutral radiative association and dissociative recombination, among other processes.

Herbst, Eric

2015-01-01

474

The ortho:para ratio of H3+ in laboratory and astrophysical plasmas  

NASA Astrophysics Data System (ADS)

The discovery of H3+ in the diffuse interstellar medium has dramatically changed our view of the cosmic-ray ionization rate in diffuse molecular clouds. However, another surprise has been that the ortho:para ratio of H3+ in these clouds is inconsistent with the temperature derived from the excitation of H2, the dominant species in these clouds. In an effort to understand this discrepancy, we have embarked on an experimental program to measure the nuclear spin dependence of the dissociative electron recombination rate of H3+ using the CRYRING and TSR ion storage rings. We have also performed the first measurements of the reaction H3++ H2? H2+ H3+ below room temperature. This reaction is likely the most common bimolecular reaction in the universe, and plays an important role in interconverting ortho- and para-H3+. Finally, we have constructed a steady-state chemical model for diffuse clouds, which takes into account the spin-dependence of the formation of H3+, its electron recombination, and its reaction with H2. We find that the ortho:para ratio of H3+ in diffuse clouds is likely governed by a competition between dissociative recombination and thermalization by reactive collisions.

Crabtree, Kyle N.; Indriolo, Nick; Kreckel, Holger; McCall, Benjamin J.

2015-01-01

475

Conserved Alternative Splicing Patterns and Splicing Signals in the Drosophila Sodium Channel Gene Para  

PubMed Central

We cloned genomic DNA corresponding to the Drosophila virilis homologue of para, a gene encoding a sodium channel ?-subunit, and obtained many partial cDNA clones from embryos and adults. Para protein has been well conserved, and the optional elements at six different sites of alternative splicing in D. melanogaster are present in D. virilis, in addition to one new optional exon. Among 31 different splice-types observed in D. virilis, the stage-specific pattern of alternative splicing seen in D. melanogaster is also conserved. Comparison of genomic DNA sequence revealed three aspects that vary between alternatively and constitutively used exon sequences. Sixteen short blocks (10-75 bp), the only recognizably conserved intron sequence, were disproportionately associated with alternatively used splice sites. Silent site substitutions were found much less frequently in alternative than constitutive exon elements, and the degree of match to the Drosophila splice site consensus tended to be lower at less frequently selected alternative splice junctions. This study shows that the developmentally regulated variability of para products is highly conserved and therefore likely to be of functional significance and suggests that a variety of different sequence-dependent mechanisms may regulate this pattern of alternative splicing. PMID:8536968

Thackeray, J. R.; Ganetzky, B.

1995-01-01

476

Theoretical study of the design of a catalyst for para to ortho hydrogen conversion  

NASA Technical Reports Server (NTRS)

The theory of Petzinger and Scalapino (1973) was thoroughly reviewed, and all of the basic equations for paramagnetic para to ortho hydrogen catalysis re-derived. There are only a few minor phase errors and errors of omission in the description of the theory. Three models (described by Petzinger and Scalapino) for the rate of para to ortho H2 catalysis were worked out, and uniform agreement obtained to within a constant factor of 2 pi. The analytical methods developed in the course of this study were then extended to two new models, which more adequately describe the process of surface catalysis including transfer of hydrogen molecules onto and off of the surface. All five equations for the para to ortho catalytic rate of conversion are described. The two new equations describe the catalytic rate for these models: H2 on the surface is a 2-D gas with lifetime tau; and H2 on the surface is a 2-D liquid undergoing Brownian motion (diffusion) with surface lifetime tau.

Coffman, Robert E.

1992-01-01

477

Estudio de terapias dirigidas para el cncer de seno estableci un modelo de estudios clnicos a nivel mundial  

Cancer.gov

Dos medicamentos de accin dirigida, diseados para tratar una forma agresiva de cncer de seno (mama), se pusieron a prueba en un estudio que incluy a 8 000 participantes en 44 pases. Si bien la finalidad del estudio fue ayudar a que los investigadores determinaran si el tratamiento combinado con trastuzumab y lapatinib para el tratamiento del cncer de seno HER2 positivo en estado inicial era mejor que la terapia solo con trastuzumab, los resultados del estudio no indicaron que existan ventajas para las mujeres al recibir la combinacin de frmacos de trastuzumab o lapatinib.

478

ParaDyn Implementation in the US Navy's DYSMAS Simulation System: FY08 Progress Report  

SciTech Connect

The goal of this project is to increase the computational efficiency and capacity of the Navy's DYSMAS simulation system for full ship shock response to underwater explosion. Specifically, this project initiates migration to a parallel processing capability for the structural portion of the overall fluid-structure interaction model. The capstone objective for the first phase is to demonstrate operation of the DYSMAS simulation engine with a production model on a Naval Surface Warfare Center (IHD) parallel platform using the ParaDyn code for parallel processing of the structural dynamics. This year saw a successful launch to integrate ParaDyn, the high-parallel structural dynamics code from Lawrence Livermore National Laboratory (LLNL), into the DYSMAS system for simulating the response of ship structures to underwater explosion (UNDEX). The current LLNL version of DYNA3D, representing ten years of general development beyond the source branch used to initiate DYNA-N customization for DYSMAS, was first connected to the GEMINI flow code through DYSMAS Standard Coupler Interface (SCI). This permitted an early 'sanity check' by Naval Surface Warfare Center, Indian Head Division (NSWC-IHD) personnel that equivalent results were generated for their standard UNDEX test problems, thus ensuring the Verification & Validation pedigree they have developed remains intact. The ParaDyn code was then joined to the SCI in a manner requiring no changes to GEMINI. Three NSWC-IHD engineers were twice hosted at LLNL to become familiar with LLNL computer systems, the execution of the prototype software system, and to begin assessment of its accuracy and performance. Scaling data for the flow solver GEMINI was attained up to a one billion cell, 1000 processor run. The NSWC-IHD engineers were granted privileges to continue their evaluations through remote connections to LLNL's Open Computing Facility. Finally, the prototype changes were integrated into the mainline ParaDyn source repository and issued as part of its Version 8.1 beta release. This source was transmitted to NSWC-IHD and in collaboration with LLNL personnel the entire ParaDyn software suite successfully installed and demonstrated on its new SGI Altix machine. The ability of even minor numbers of processors for the structural dynamics to impact overall time-to-solution for DYSMAS has been demonstrated. Assessments of combined parallel efficiencies are beginning to highlight areas for further DYSMAS optimizations.

Ferencz, R M; DeGroot, A J; Lin, J I; Zywicz, E; Durrenberger, J K; Sherwood, R J; Corey, I R

2008-07-29

479

Experiencia en la Construccin de un Objeto de Aprendizaje sobre el Ciclo de Krebs para favorecer el proceso de Enseanza Aprendizaje en Bioqumica  

Microsoft Academic Search

Se describe el proceso de diseo y construccin de un Objeto de Aprendizaje (OA) sobre el Ciclo de Krebs, utilizando la metodologa ISD- MeLO (Instructional Systems Development Methodology based on e-Learning Objects). Para el desarrollo del OA se utilizaron las herramientas de software SWiSHMax para elaborar las animaciones, Adobe Photoshop para crear las imgenes del OA y Dreamweaver para el

Vanessa Miguel; Mara Gertrudis Lpez; Lisbeth Ramos; Omar Villarroel; Nora Montao; Yosly Hernandez

2007-01-01

480

A single amino acid change in the para sodium channel protein is associated with knockdown-resistance ( kdr) to pyrethroid insecticides in German cockroach  

Microsoft Academic Search

Previous genetic and pharmacological studies suggest that knockdown-resistance (kdr) to pyrethroid insecticides likely results from a mutation(s) in the para sodium channel gene. In this study, para sodium channel genes from an insecticide-susceptible German cockroach strain, CSMA, and a kdr-type German cockroach strain, Ectiban-R, were cloned and sequenced. Comparison of the nucleotide sequences of paraCSMA and paraEctiban-R revealed two nucleotide

Ke Dong

1997-01-01

481

-REDES Y TELECOMUNICACIONES PARA PASES EN DESARROLLO No es previsible que sea necesaria una adaptacin de alumnos del Mster Oficial en  

E-print Network

- REDES Y TELECOMUNICACIONES PARA PASES EN DESARROLLO No es previsible que sea necesaria una adaptacin de alumnos del Mster Oficial en Redes de Telecomunicacin para Pases en Desarrollo hacia el nuevo ttulo de Mster Universitario en Redes de Telecomunicacin para Pases en Desarrollo. Las razones

Rey Juan Carlos, Universidad

482

El embarazo en la mujer con enfermedad cardiaca congnita: enfoque para el cardilogo Congenital heart disease in the pregnant woman: a guide for the cardiologist  

Microsoft Academic Search

La enfermedad cardiaca congnita es la forma ms comn de alteracin estructural cardiaca que afecta a la mujer en edad reproductiva en los pases en va de desarrollo. En estas pacientes el embarazo se asocia con mayor riesgo tanto para la madre como para el feto. Se recomienda la consejera y una evaluacin prenatal adecuada, para evaluar los riesgos e

Edgardo Vanegas; Juan K. Urrea

483

E S P A O L V A L E N C I E N G L I S H Mster Universitario en Desarrollo de Software para Dispositivos  

E-print Network

la pgina web del nuevo Mster Universitario en Desarrollo de Software para Dispositivos Mviles, queE S P A O L V A L E N C I E N G L I S H Mster Universitario en Desarrollo de Software para a impartirse el Mster Universitario en Desarrollo de Software para Dispositivos Mviles de la Universidad de

Escolano, Francisco

484

Instrucciones para la Preparacin de Manuscritos en Espaol Manuscritos sometidos a consideracin deben reportar resultados de investigaciones  

E-print Network

geográfica. Manuscritos que reporten resultados de trabajos rutinarios de laboratorio o de campo cuyo experimentos con insecticidas, acaricidas e insecticidas microbiales son aceptables para su publicación

Behmer, Spencer T.

485

IMPLEMENTAC ~AO PARALELA DA LOCALIZAC ~AO DE MONTE CARLO PARA ROB^OS MOVEIS EM GPUS COMERCIAIS  

E-print Network

Andr´e Lima Gaspar Ruas , Mario Montenegro Campos , Luiz Chaimowicz Emails: algruas@gmail.com, mario sensores laser em ambientes internos. Experimentos foram conduzidos para grandes quantidades de part

Chaimowicz, Luiz

486

Ensayo Ensayo Ensayo Ensayo in vivo in vivo in vivo in vivo para determinar agentes extraos en para determinar agentes extraos en para determinar agentes extraos en para determinar agentes extraos en clulas BHK-21 empleadas en la obtencin de biolgicos clulas BHK-21 empleadas en la obtencin de biolgicos clulas BHK-21 empleadas en la obtencin de biolgicos clulas BHK-21 empleadas en la obtencin de biolgicos  

Microsoft Academic Search

La controversia sobre los parmetros de calidad de las clulas de lnea como substrato para la obtencin de productos farmacuticos ha sido un tema de inters desde 1987. Las pruebas realizadas a las clulas, generalmente siguen las recomendaciones de los \\

Georgina Pardo; Ernesto Almora; Odalys Fidalgo; Arelys Zamora; Niurka Rodrguez; Ela Mara Prez

487

IN VITRO EMBRYOTOXICITY OF A SERIES OF PARA-SUBSTITUTED PHENOLS: STRUCTURE, ACTIVITY AND CORRELATION WITH IN VIVO DATA  

EPA Science Inventory

The embryotoxicity of phenol and twelve para-substituted congeners on mid-gestation rat embryos was evaluated in vitro. hrough application of correlative procedures and stepwise regression, equation describing the relationship between physical-chemical properties and various meas...

488

Resultados de estudio para cncer de pulmn indican beneficio en mortalidad con el uso de tomografa computarizada de baja dosis  

Cancer.gov

El Instituto Nacional del Cncer (NCI) da a conocer hoy resultados iniciales de un estudio de gran envergadura sobre mtodos de deteccin para reducir el nmero de muertes por cncer de pulmn al detectar cnceres en estadios relativamente iniciales.

489

Desarrollo de Recursos para el Analisis Sintactico Automatico del Espa~nol: AVALON, una gramatica formal y CSA, un corpus  

E-print Network

Desarrollo de Recursos para el An´alisis Sint´actico Autom´atico del Espa~nol: AVALON, una gram, Desarrollo de Re- cursos para el An´alisis Sint´actico del Es- pa~nol: AVALON, una gram´atica formal, y CSA por una secci´on del grupo de investigaci´on Gram´atica del espa~nol perteneciente a la Universidad de

Escolano, Francisco

490

Aceleraci'on de la convergencia en m'etodos de Jacobi para el Problema Sim'etrico de Valores  

E-print Network

puede resolver por m'etodos de Jacobi. Para reducir el tiempo de ejecuci'on de estos m'etodos se puede posibilidad de reducci'on del tiempo de ejecuci'on con­ siste en usar m'etodos por bloques [3] con los que seAceleraci'on de la convergencia en m'etodos de Jacobi para el Problema Sim'etrico de Valores

Giménez, Domingo

491

A Introduo de Astronomia Bsica para Estudantes de 5 e 6 Sries do Ensino Fundamental  

NASA Astrophysics Data System (ADS)

Com intuito de despertar o interesse pelo estudo da astronomia, desenvolveu-se entre 2003 e 2006 no Centro Educacional do Servio Social da Indstria situado no municpio de Mau, So Paulo, um trabalho com durao de 12 meses para turmas de 11 e 12 anos, sendo trs turmas por perodo (2003 / 2004, 2004 / 2005 e 2005 / 2006). O trabalho realizado, objetivando a introduo da astronomia bsica com observaes de constelaes e das fases da Lua, permitindo estender-se a outros corpos celestes, iniciou-se com visita ao planetrio Mundo Estelar, localizado no Ipiranga, So Paulo levantou-se a questo da importncia do estudo da astronomia e foi lanado aos estudantes um trabalho de observao, com a proposta de localizar as constelaes e compreender as fases da Lua, para o registro de tais observaes, foram distribudos mapas celestes, pastas, planilhas de anotaes com lacunas para, constelaes, fases da Lua e relatos, onde os estudantes acrescentaram pesquisas e relatrios. Os resultados dos 346 estudantes foram que 86,7% (300) concluram a etapa de observao, destes 300 estudantes 43,3% (130) pesquisaram sobre as constelaes e 19,0% (57) localizaram at quatro constelaes. Dos 346 estudantes, 44,2% (153) registraram as fases da Lua equivocadamente e 10,4% (36) anexaram reportagens sobre astronomia. Conclui-se que os estudantes se dividiram em pesquisadores, sendo os estudantes que registraram e anexaram informaes e, os observadores que preencheram as planilhas de observaes, alm de desenvolverem habilidades e competncias relacionadas ao estudo da astronomia.

Gonzaga, E. P.; Voelzke, M. R.

2008-09-01

492

Supported transition metal catalysts for para- to ortho-hydrogen conversion  

NASA Technical Reports Server (NTRS)

The main goal of this study was to develop and improve on existing catalysts for the conversion of ortho- to para-hydrogen. Starting with a commercially available Air Products nickel silicate, which had a beta value of 20, we were trying to synthesize catalysts that would be an improvement to AP. This was accomplished by preparing silicates with various metals as well as different preparation methods. We also prepared supported ruthenium catalysts by various techniques using several metal precursors to improve present technology. What was also found was that the activation conditions prior to catalytic testing was highly important for both the silicates and the supported ruthenium catalysts. While not the initial focus of the research, we made some interesting observations into the adsorption of H2 on ruthenium. This helped us to get a better understanding of how ortho- to para-H2 conversion takes place, and what features in a catalyst are important to optimize activity. Reactor design was the final area in which some interesting conclusions were drawn. As discussed earlier, the reactor catalyst bed must be constructed using straight 1/8 feet OD stainless steel tubing. It was determined that the use of 1/4 feet OD tubing caused two problems. First, the radius from the center of the bed to the wall was too great for thermal equilibrium. Since the reaction of ortho- to para-H2 is exothermic, the catalyst bed center was warmer than the edges. Second, the catalyst bed was too shallow using a 1/4 feet tube. This caused reactant blow-by which was thought to decrease the measured activity when the flow rate was increased. The 1/8 feet tube corrected both of these concerns.

Brooks, Christopher J.; Wang, Wei; Eyman, Darrell P.

1994-01-01

493

Un diverticule gant para urtral chez lenfant rvl par une masse pelvienne  

PubMed Central

Rsum Nous rapportons un cas de diverticule gant para-urtral chez un enfant de 18 mois, du point de vue des aspects cliniques, diagnostiques et thrapeutiques. Aucune anomalie associe na t releve. Le patient tait un enfant de sexe masculin, et la symptomatologie tait domine par la rtention aigu durine et la prsence dune infection urinaire. La chirurgie a consist en une diverticulectomie laparoscopique avec rimplantation urtro-vsicale. Lvolution a t favorable avec disparition des signes urinaires. PMID:24940473

Kassogu, Amadou; Diarra, Alkadri; Benzekri, Younes; Doumbia, Aliou; Bouabdallah, Youssef; Traor, Zacharia; Tizniti, Siham; Mellas, Soufiane; Tazi, Mohammed Fald; Ammari, Jalal Eddine El; Khallouk, Abdelhak; Fassi, Mohammed Jamal El; Farih, My Hassan

2014-01-01

494

Abnormal expansion during the ferro- to para-magnetic transition in pure iron  

NASA Astrophysics Data System (ADS)

The strain change near the Curie temperature was investigated during continuous heating of pure iron using two different types of dilatometers with and without a radio frequency (RF) field. Contrary to the well-known fact that the ferro- to para-magnetic transition accompanies volumetric contraction, abnormal expansion was observed near the Curie temperature only when the quench dilatometer employing the RF field for heating was used. The abnormal expansion was caused primarily by the change in electron-phonon interaction under the RF field.

Park, Jihye; Jung, Minsu; Lee, Young-Kook

2015-03-01

495

Three-dimensional treatment planning for para-aortic node irradiation in patients with cervical cancer  

SciTech Connect

Three-dimensional treatment planning has been used by four cooperating centers to prepare and analyze multiple treatment plans on two cervix cancer patients. One patient had biopsy-proven and CT-demonstrable metastasis to the para-aortic nodes, while the other was at high risk for metastatic involvement of para-aortic nodes. Volume dose distributions were analyzed, and an attempt was made to define the role of 3-D treatment planning to the para-aortic region, where moderate to high doses (50-66 Gy) are required to sterilize microscopic and gross metastasis. Plans were prepared using the 3-D capabilities for tailoring fields to the target volumes, but using standard field arrangements (3-D standard), and with full utilization of the 3-D capabilities (3-D unconstrained). In some but not all 3-D unconstrained plans, higher doses were delivered to the large nodal volume and to the volume containing gross nodal disease than in plans analyzed but not prepared with full 3-D capability (3-D standard). The small bowel was the major dose limiting organ. Its tolerance would have been exceeded in all plans which prescribed 66 Gy to the gross nodal mass, although some reduction in small bowel near-maximum dose was achieved in the 3-D unconstrained plans. All plans were able to limit doses to other normal organs to tolerance levels or less, with significant reductions seen in doses to spinal cord, kidneys, and large bowel in the 3-D unconstrained plans, as compared to the 3-D standard plans. A high probability of small bowel injury was detected in one of four 3-D standard plans prescribed to receive 50 Gy to the large para-aortic nodal volume; the small bowel dose was reduced to an acceptable level in the corresponding 3-D unconstrained plan. An optimum beam energy for treating this site was not identified, with plans using 4, 6, 10, 15, 18, and 25 MV photons all being equally acceptable. (Abstract Truncated)

Munzenrider, J.E.; Doppke, K.P.; Brown, A.P.; Burman, C.; Cheng, E.; Chu, J.; Chui, C.; Drzymala, R.E.; Goitein, M.; Manolis, J.M. (Massachusetts General Hospital, Boston, MA (USA))

1991-05-15

496

Photochemical transformation of nitrate in the presence of para-halogenated phenols in frozen solutions  

NASA Astrophysics Data System (ADS)

Photochemical reactions leading to the chemical transformation of trace compounds in the atmosphere do not only occur in the atmospheric gas and liquid phases, but also in the tropospheric ice phase. The photochemical reactions of trace compounds embedded in ice have important implications for the composition of the atmospheric boundary layer in ice and snow covered regions and for interpretation of concentration profiles in snow and ice in the context of the composition of the past atmosphere. One of the prominent reactions is the photolysis of nitrate. This reaction is well established in natural waters, and is of interest since formation of highly mutagenic/carcinogenic nitro-compounds is possible. In contrast, the photochemical behaviour of nitrate in ice and snow is more complex. The photolysis of nitrate embedded in ice has been shown to generate OH radical, NO2(g) and NO(g) as primary photoproducts, but little is known how this photochemistry is affected by the presence of organic impurities embedded in the ice surface. In this work, we studied the effect of the presence of para-halogenated phenols on the photo-transformation of frozen nitrate solutions by Diffuse Reflective Infrared Fourier Transform Spectroscopy (DRIFTS). Moreover, the evolution of volatile nitrogen oxides to the gas phase was monitored by a commercial chemiluminescence NO/NOy monitor, chemical ionization mass spectrometry (CIMS), and thermal-dissociation cavity ring-down spectroscopy (TD-CRDS). In addition, some of the organic intermediate products were characterized by GC/MS and HPLC/PDA. We show that DRIFTS can provide a qualitative picture of the chemical transformations that take place at the ice surface and kinetic data on the phototransformation of nitrate. The photochemistry of frozen solutions of nitrate in the presence of various para-halogenated phenols was found to be dependent on the ice temperature, pH, the light intensity, and the concentration and nature of para-halogenated phenols added. The release of NOy species to the gas-phase was dramatically accelerated by low pH values as well as the nature of para-halogen, in the order Cl>Br>F. The major species released were identified as NO2 and HONO.

Abida, O.; Osthoff, H. D.; Sutherland, T. C.

2010-12-01

497

The Ortho:Para Ratio of H3+ in Diffuse Molecular Clouds  

NASA Astrophysics Data System (ADS)

Since its first interstellar detection in the mid 1990s, H3+ has proved to be a powerful probe of astrophysical conditions. In cold molecular clouds, only the lowest two rotational energy levels of H3+ are populated: the (J,K) = (1,1) para state and the (1,0) ortho state. The relative populations of these levels can be used to calculate an excitation temperature, Tex. In dense molecular clouds, Tex agrees well with the estimated cloud kinetic temperature. However, in diffuse molecular clouds, Tex is found to be 30 K, while the kinetic temperature, as determined from the excitation temperature T01 (given by the relative populations of the J = 0 and J = 1 rotational levels of H2) is on average 60-70 K in these environments. Because the (1,1) state of H3+ is the lower-energy state, this indicates that there is more para-H3+ in diffuse molecular clouds than would be expected based on the cloud kinetic temperature. To understand the excess para-H3+ (or the lower-than-expected Tex), we have constructed a chemical model that takes into account the nuclear spin dependence of H3+ formation, proton scrambling via collisions with H2, and dissociative recombination with electrons. At the heart of this model is the reaction H3+ + H2 ? H2 + H3+ , which can proceed by one of three pathways: the identity, proton hop, and hydrogen exchange. The branching fractions for the three pathways, Sid, Shop, and Sexch, influence the nature and extent of the proton scrambling. We use the microcanonical statistical model of Park and Light (J. Chem. Phys. 126, 044305, 1997) to calculate nuclear-spin-dependent rate coefficients that describe the extent of proton scrambling as a function of temperature and the aforementioned branching fractions. As a result, our model predicts, based on these parameters, what the observed Tex should be for a certain cloud kinetic temperature. Our model suggests that on its own, the H3+ + H2 reaction would effectively thermalize the ortho:para H3+ ratio (i.e., Tex = T01). However, dissociative recombination is taken into account, this thermalization is incomplete, and the resultant competition between thermalization and dissociative recombination seems to reproduce the astronomical observations for Sid ~ 0.8-0.9. However, the details of the spin-dependence of H3+ dissociative recombination are important, and at present, experimentally uncertain. More information about this process is needed to determine the validity of our modeling results.

Crabtree, Kyle N.; Indriolo, Nick; Kreckel, Holder; Tom, Brian A.; McCall, Benjamin J.

2010-11-01

498

Natural bond orbital population analysis of para-substituted O -nitrosyl carboxylate compounds  

Microsoft Academic Search

Theoretical study of several para-substituted O-nitrosyl carboxylate compounds has been performed using density functional B3LYP method with 6-31G(d,p) basis set. Geometries\\u000a obtained from DFT calculation were used to perform natural bond orbital analysis. It is noted that weakness in the O3N2 sigma bond is due to $$ n_{{{\\\\text{O}}_{1} }} \\\\to \\\\sigma_{{{\\\\text{O}}_{3} - {\\\\text{N}}_{2} }}^{*} $$ delocalization and is responsible for

Li Xiao-Hong; Chen Qing-Dong; Zhang Xian-Zhou

2009-01-01

499

A centroid molecular dynamics study of liquid para-hydrogen and ortho-deuterium.  

PubMed

Centroid molecular dynamics (CMD) is applied to the study of collective and single-particle dynamics in liquid para-hydrogen at two state points and liquid ortho-deuterium at one state point. The CMD results are compared with the results of classical molecular dynamics, quantum mode coupling theory, a maximum entropy analytic continuation approach, pair-product forward- backward semiclassical dynamics, and available experimental results. The self-diffusion constants are in excellent agreement with the experimental measurements for all systems studied. Furthermore, it is shown that the method is able to adequately describe both the single-particle and collective dynamics of quantum liquids. PMID:15446940

Hone, Tyler D; Voth, Gregory A

2004-10-01

500

Semantics-based distributed I/O with the ParaMEDIC framework.  

SciTech Connect

Many large-scale applications simultaneously rely on multiple resources for efficient execution. For example, such applications may require both large compute and storage resources; however, very few supercomputing centers can provide large quantities of both. Thus, data generated at the compute site oftentimes has to be moved to a remote storage site for either storage or visualization and analysis. Clearly, this is not an efficient model, especially when the two sites are distributed over a wide-area network. Thus, we present a framework called 'ParaMEDIC: Parallel Metadata Environment for Distributed I/O and Computing' which uses application-specific semantic information to convert the generated data to orders-of-magnitude smaller metadata at the compute site, transfer the metadata to the storage site, and re-process the metadata at the storage site to regenerate the output. Specifically, ParaMEDIC trades a small amount of additional computation (in the form of data post-processing) for a potentially significant reduction in data that needs to be transferred in distributed environments.

Balaji, P.; Feng, W.; Lin, H.; Mathematics and Computer Science; Virginia Tech; North Carolina State Univ.

2008-01-01