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1

Estresse hídrico induzido por manitol em sementes de soja de diferentes tamanhos  

Microsoft Academic Search

The first event in the germination sequence is imbibition. Water uptake limitation has an effect on germination velocity, decreasing or stopping this process. In water stress conditions seeds with different sizes may present different behaviour. The purpose of this study was to evaluate the effects of hydric stress induced by mannitol on the physiological seed quality of soybean cultivar 'IAC-18'

Paulo Roberto Costa; Ceci Castilho Custódio; Nelson Barbosa Machado Neto; Oswaldo Massuo Marubayashi

2004-01-01

2

Per : un cncer de hgado muy diferente  

E-print Network

lugares del mundo, donde el ratio de sexo es mucho más desequilibrado. Otra singularidad de Perú es que la de sexo: númerodehombresporcadacienmujeres. Prevalencia: número de personas afectadas por una

3

Avaliação da permeabilidade do esmalte expos- to a diferentes concentrações de peróxido de hi- drogênio e peróxido de carbamida Evaluation of the permeability of the enamel expo sed to the differents concentrations of hydrogen pe- roxide and carbamide  

Microsoft Academic Search

Key-words Avaliou-se a permeabilidade do esmalte bovino exposto a diferentes concen- trações de peróxido de hidrogênio (10% e 35%) e peróxido de carbamida (10%, 16% e 20%), sendo empregados de forma contínua, ou intercalada por saliva artificial. O grau de permeabilidade foi determinado por meio de escores, através da penetração do corante na estrutura dentária. Os resulta- dos demonstraram que

Ana Paula Cândido; João Thomaz; Lins de Araújo; Cláudio Heliomar; Vicente da Silva

4

POLARIZAÇÃODO MERCADO DE TRABALHO SOB VIÉS TECNOLÓGICO EIMPACTOS SOBRE DIFERENCIAIS SALARIAIS POR GÊNERO  

Microsoft Academic Search

Resumo: este estudo dedica-se à captação dos efeitos da polarização do mercado de trabalho brasileiro sob viés tecnológico e os diferentes impactos sobre a remuneração e absorção de homens e mulheres em ocupações com requerimentos de habilidades sofisticadas. Por intermédio de regressões MQO constata-se um aumento na demanda em ocupações de requerimentos superiores para administração de recursos tecnológicos e não

Gustavo Saddi Bressan; Ana Maria Hermeto Camilo de Oliveira

2011-01-01

5

Reconstrução tridimensional de arcos magnéticos por tomografia  

NASA Astrophysics Data System (ADS)

Uma explosão solar é uma variação súbita do brilho que ocorre nas regiões ativas da atmosfera solar. Estas regiões são constituídas por um plasma magnetizado com intensa indução magnética e em cenários bem complexos como visto recentemente através de experimentos embarcados em satélites operando instrumentos em raios X moles e ultra-violeta distante. A energia magnética, que pode ser armazenada por um período de horas até dias em configurações magnéticas estressadas, é subitamente lançada na atmosfera solar e transferida para partículas como elétrons, prótons e núcleos pesados, que são acelerados e/ou aquecidos, produzindo radiação eletromagnética. A proposta final deste projeto é determinar as características espaciais de alta resolução da emissão e polarização girossincrotrônica de explosões solares em ambientes complexos de campos magnéticos. Os recentes resultados da emissão difusa em EUV apresentado pelos satélites TRACE e SOHO dos arcos magnéticos conectando as diferentes polaridades magnéticas sobre as regiões ativas possibilitam novas abordagens sobre o papel do campo magnético na emissão em rádio. Nesta etapa apresentamos os resultados da reconstrução da geometria tridimensional das linhas de força destes arcos utilizando técnicas tomográficas, a partir de imagens de alta resolução espacial obtidas pelo instrumento EIT (Extreme ultraviolet Imaging Telescope), além da modelagem das induções magnéticas por um campo dipolar e as densidades de partículas aceleradas. Utilizamos para a reconstrução geométrica, imagens tomadas em vários ângulos dos arcos devido à rotacão solar. Com estes resultados, daremos continuidade ao projeto, com os cálculos da transferência radiativa nos modos ordinário e extraordinário de propagação da radiação girossincrotrônica de explosões solares.

Simões, P. J. A.; Costa, J. E. R.

2003-08-01

6

PorSalsa User's Manual  

SciTech Connect

This report describes the use of PorSalsa, a parallel-processing, finite-element-based, unstructured-grid code for the simulation of subsurface nonisothermal two-phase, two component flow through heterogeneous porous materials. PorSalsa can also model the advective-dispersive transport of any number of species. General source term and transport coefficient implementation greatly expands possible applications. Spatially heterogeneous flow and transport data are accommodated via a flexible interface. Discretization methods include both Galerkin and control volume finite element methods, with various options for weighting of nonlinear coefficients. Time integration includes both first and second-order predictor/corrector methods with automatic time step selection. Parallel processing is accomplished by domain decomposition and message passing, using MPI, enabling seamless execution on single computers, networked clusters, and massively parallel computers.

MARTINEZ,MARIO J.; HOPKINS,POLLY L.; REEVES,PAUL C.

2001-06-01

7

Las infecciones emergentes transmitidas por garrapatas  

Microsoft Academic Search

ResumenLas infecciones transmitidas por garrapatas aparecen por todo el mundo y son bien conocidas desde hace más de 100 años. Algunas enfermedades transmitidas por garrapatas son muy comunes mientras que otras son extremadamente raras. Las técnicas genéticas moleculares modernas (y la mayor disponibilidad de la reacción en cadena de la polimerasa) han llevado al descubrimiento y la clasificación de nuevos

Ingomar Mutz

2009-01-01

8

Respostas posturais à perturbação externa inesperada em judocas de diferentes níveis de habilidade  

Microsoft Academic Search

RESUMO O judô é uma modalidade esportiva na qual é requerido o con- trole eficiente do equilíbrio pelo atleta, por estar constantemente sujeito a movimentos inesperados impostos por seus adversários. Este estudo teve o objetivo de analisar as respostas posturais a uma perturbação externa inesperada de judocas (n = 20) em dois níveis de habilidade (faixas marrom e verde) e

Sheylla Kyoko Yoshitomi; Clarice Tanaka; Marcos Duarte; Fernanda Lima; Edgard Morya; Fuad Hazime

2006-01-01

9

Spectra/Por Easy-to-Use  

E-print Network

dialysis which combine efficiency and convenience. They are pre-assembled dialy- sis tubes that floatSpectra/Por® Easy-to-Use Dialysis Membrane Products Micro DispoDialyzer® Float-A-Lyzer® DispoDialyzer® A Dialysis Device for Ultra Micro Volume Samples The Micro DispoDialyzer was developed for efficiently dia

Lebendiker, Mario

10

EDITAL COMPLETO PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

1 EDITAL COMPLETO PARA INGRESSO POR TRANSFER�NCIA EXTERNA (BRASIL) PERÍODO 2014.1 PRAZO PARA deverá entregar a convalidação dos estudos concedida pela Secretaria Estadual de Educação, no Brasil. Se, do qual conste: A forma de ingresso / processo seletivo (vestibular, ENEM, transferência externa

11

Comprometimento órbito-craniano por tumores malignos sinonasais: estudo por tomografia computadorizada  

Microsoft Academic Search

Tumores malignos das cavidades sinonasais são raros e freqüentemente diagnosticados em estágio avan- çado da doença. A extensão destes tumores para locais críticos como a órbita e o crânio gera dificuldades no tratamento destas lesões. Dez pacientes com neoplasia maligna sinonasal, sem qualquer tratamento prévio e com evidência radiológica de extensão órbito-craniana, foram estudados por tomografia computa- dorizada. Dos dez

Ana Célia Baptista; Edson Marchiori; Edson Boasquevisque; Carlos Eduardo Lassance Cabral

2002-01-01

12

ANÁLISE DE VIABILIDADE ECONÔMICO-FINANCEIRA DE DIFERENTES SISTEMAS DE EXPLOTAÇÃO DE SERINGUEIRAS  

Microsoft Academic Search

Qualquer pessoa física ou jurídica, antes de fazer um investimento produtivo, precisa empregar técnicas de análise econômico-financeira, que o auxiliem a decidir onde empregar seus recursos financeiros, de forma a verificar a viabilidade de cada alternativa de investimento. Neste sentido, torna-se necessário a montagem do Orçamento de Capital, que representa um resumo dos gastos e benefícios gerados por uma alternativa

Aloizio Lunga; Juliano Quarteroli Silva; Marcelo Alvaro da Silva Macedo

2008-01-01

13

Efecto de Diferentes Cultivos y Prácticas Culturales Sobre la Multiplicación del Nematodo Quiste de la Papa (Globodera spp.) en Bolivia  

Microsoft Academic Search

Resumen Bajo condiciones del altiplano central de Bolivia (Provincia de Ingavi, La Paz) se realizó un estudio de campo para evaluar diferentes especies cultivadas y prácticas culturales sobre el nematodo quiste de la papa (Globodera spp.) y determinar la factibilidad de su incorporación en una estrategia para el manejo integrado de esta plaga. Se evaluaron tres clones de papa con

G. Pacajes; Javier Franco; Raúl Esprella; Gladys Main

14

Relação entre diferentes índices de atividade física e preditores de adiposidade em adolescentes de ambos os sexos  

Microsoft Academic Search

RESUMO Objetivo: Determinar a relação entre diferentes índices de ativi- dade física e preditores de adiposidade em adolescentes de am- bos os sexos. Métodos: Foram avaliadas 111 crianças (57 meni- nos e 54 meninas), com idade média de 11,62 ± 0,72. Como preditores de adiposidade foram determinados o IMC, percenta- gem de gordura corporal e a relação cintura\\/quadril (RCQ). Quanto

Luís Paulo Gomes Mascarenhas; Fabiano de Macedo Salgueirosa; Gabriel Ferreira Nunes; Paulo Ângelo Martins; Antonio Stabelini Neto; Wagner de Campos

2005-01-01

15

Candidatos selecionados por ordem alfabtica Aldo Roberto Pereira  

E-print Network

PPGAU UFSC Candidatos selecionados por ordem alfabética Aldo Roberto Pereira Ana Lúcia Moraes Ana Fernando Lauro Pereira Fernando Ramos Lebgler Glória Silva do Amaral Isabel Machado Canabarro Isabela Moreira Rosemar da Silva Sandra Regina Velasques Pereira Walquiria Martins Suplentes (por ordem de

Floeter, Sergio Ricardo

16

Distribución espacial de órbitas con diferentes grados de caoticidad en modelos autoconsistentes de satélites galácticos  

NASA Astrophysics Data System (ADS)

En trabajos anteriores (Carpintero et al., Cel. Mech. Dynam. Astron. 85, 247, 2003), mostramos que las órbitas caóticas son muy importantes en los satélites galácticos. Sin embargo, los únicos modelos autoconsistentes de los que se disponía para ellos eran los de Heggie-Ramamani, cuya función de distribución depende sólo de la energía por lo que no mostraban diferencias entre las distribuciones de sus órbitas regulares y caóticas. Ahora, mediante una aproximación cuadrupolar, hemos logrado construir modelos autoconsistentes de satélites galácticos con distribuciones de velocidades anisotrópicas (lo que indica que sus funciones de distribución no dependen sólo de la energía) y hemos logrado revelar las diferencias entre las estructuras espaciales de las órbitas de distinta caoticidad.

Muzzio, J. C.; Mosquera, M.

17

Infección por VIH y el riesgo de cáncer  

Cancer.gov

Hoja informativa que describe el mayor riesgo de ciertos tipos de cánceres que presentan las personas con infección por VIH. Dichos cánceres son el sarcoma de Kaposi, los linfomas de Hodgkin y no Hodgkin, y los cánceres de ano, de cérvix, de hígado y de pulmón. Trata también de lo que las personas con infección por VIH pueden hacer para reducir su riesgo de cáncer o para detectar temprano la enfermedad.

18

RIGIDEZ E RESISTÊNCIA DE VIGAS ESTRUTURAIS DE MADEIRA LAMINADA COLADA E COM PERFIL I COMPOSTAS POR DIFERENTES ADESIVOS BENDING STIFFNESS AND RESISTENCE OF STRUCTURAL GLULAM BEAMS AND I - JOIST COMPOSED OF DIFFERENT ADHESIVES  

Microsoft Academic Search

A madeira sempre foi utilizada estruturalmente na construção civil na forma sólida, com baixo grau de processamento e inovação tecnológica e, muitas vezes, em outros componentes como em pisos, paredes e telhados. Entretanto, a mudança nos padrões adotados envolveu o aperfeiçoamento da tecnologia, bem como a mudança do conceito estético e funcional requerido nas construções. Dessa forma, surgiram as vigas

Alexsandro Bayestorff da Cunha; Jorge Luis; Monteiro de Matos

2010-01-01

19

System design description for portable 1,000 CFM exhauster Skids POR-007/Skid E and POR-008/Skid F  

SciTech Connect

The primary purpose of the two 1,000 CFM Exhauster Skids, POR-007-SKID E and POR-008-SKID F, is to provide backup to the waste tank primary ventilation systems for tanks 241-C-106 and 241-AY-102, and the AY-102 annulus in the event of a failure during the sluicing of tank 241-C-106 and subsequent transfer of sluiced waste to 241-AY-102. This redundancy is required since both of the tank ventilation systems have been declared as Safety Class systems.

Nelson, O.D.

1998-07-25

20

Intoxicación por administración parenteral de insecticidas organoclorados e hidrocarburos aromáticos  

Microsoft Academic Search

Resumen: La intoxicación por vía parenteral debida a insectici- das organoclorados e hidrocarburos aromáticos, es muy poco frecuente. La toxicidad comporta efectos locales y sistémicos que pueden llegar a comprometer la vida del paciente. Se pre- senta el caso clínico de un varón que desarrolló una importante reacción local necrótico-inflamatoria, con leve afectación sisté- mica hepática y renal, tras administrarse

Martínez-Pérez J; Muñoz E; Santiago Nogué

21

UN LABORATORIO DE DISEÑO DIGITAL EN VHDL: APRENDIZAJE POR PROYECTOS  

Microsoft Academic Search

El aprendizaje del lenguaje VHDL en la Ingeniería Electrónica necesita de una constante realización práctica de ejercicios, tanto de simulación como de implementación. Por ello, este trabajo describe la metodología llevada a cabo para conseguir que el aprendizaje de este lenguaje de descripción hardware sea efectivo y rápido, especialmente en lo referido al VHDL orientado a síntesis hardware. Se han

A. ROSADO; M. BATALLER; J. GUERRERO; J. MUÑOZ; J. VILA

22

I CONGRESO INTERNACIONAL DEL AGUA .... por la vida  

E-print Network

I CONGRESO INTERNACIONAL DEL AGUA .... por la vida Jueves 09 y viernes 10 de junio de 2005/Ciudad. Temática: Riesgos y agua. Hacia una redefinición del riesgo para una mejor gestión social. Julien Rebotier (IHEAL), Paris 3 ­ Sorbonne Nouvelle. Los riesgos socionaturales y el agua, un enfoque renovado para una

Paris-Sud XI, Université de

23

ÓPTIMO DE COBERTURA VEGETAL EN RELACIÓN A LAS PÉRDIDAS DE SUELO POR EROSIÓN HÍDRICA Y LAS PÉRDIDAS DE LLUVIA POR INTERCEPTACIÓN  

Microsoft Academic Search

RESUMEN Se establece, en una primera aproximación, el óptimo de cobertura en función de las pér- didas de suelo por erosión hídrica y de las pérdidas de lluvia por interceptación, en un mato- rral (romeral), en condiciones ambientales semiáridas mediterráneas, con un mismo tipo de suelo y dos tramos de pendiente de ladera, 11% y 25%. Se utiliza el promedio

Belmonte Serrato; Romero Díaz; López Bermúdez; E. Hernández Laguna

24

POR UNA BELLEZA MS SIMPLE por Blazes Boylan En La sociedad de consumo, libro en el cual Jean Baudrillard propone que en nuestra  

E-print Network

POR UNA BELLEZA MÁS SIMPLE por Blazes Boylan En La sociedad de consumo, libro en el cual Jean, llegados a este punto, el comentario que Baricco hace en Los Bárbaros sobre la industria del libro acceso al mercado editorial, puede comprar cualquier libro aunque nunca haya leído uno: la industria

Geffner, Hector

25

Mitochondrial Porin Por1 and Its Homolog Por2 Contribute to the Positive Control of Snf1 Protein Kinase in Saccharomyces cerevisiae  

PubMed Central

Saccharomyces cerevisiae Snf1 is a member of the conserved Snf1/AMP-activated protein kinase (Snf1/AMPK) family involved in regulating responses to energy limitation, which is detected by mechanisms that include sensing adenine nucleotides. Mitochondrial voltage-dependent anion channel (VDAC) proteins, also known as mitochondrial porins, are conserved in eukaryotes from yeast to humans and play key roles in mediating mitochondrial outer membrane permeability to small metabolites, including ATP, ADP, and AMP. We previously recovered the yeast mitochondrial porin Por1 (yVDAC1) from a two-hybrid screen for Snf1-interacting proteins. Here, we present evidence that Snf1 interacts with Por1 and its homolog Por2 (yVDAC2). Cells lacking Por1 and Por2, but not respiratory-deficient rho0 cells lacking the mitochondrial genome, exhibit reduced Snf1 activation loop phosphorylation in response to glucose limitation. Thus, Por1 and Por2 contribute to the positive control of Snf1 protein kinase. Physical proximity to the VDAC proteins and mitochondrial surface could facilitate Snf1's ability to sense energy limitation. PMID:23104570

Strogolova, Vera; Orlova, Marianna; Shevade, Aishwarya

2012-01-01

26

Identification of two differentially regulated isoforms of protochlorophyllide oxidoreductase ( POR ) from tobacco revealed a wide variety of light- and development-dependent regulations of POR gene expression among angiosperms  

Microsoft Academic Search

NADPH-protochlorophyllide oxidoreductase (POR) catalyzes the light-dependent reduction of protochlorophyllide a in the chlorophyll biosynthetic pathway. Here, we identified two distinct POR cDNAs from tobacco. Both POR isoforms are encoded by a respective single copy gene in tobacco genome. The overall deduced\\u000a amino acid sequences of two tobacco cDNAs, designated here POR1 and POR2, displayed significant identities (?75%), but showed different

Tatsuru Masuda; Naoki Fusada; Toshihiko Shiraishi; Hirofumi Kuroda; Koichiro Awai; Hiroshi Shimada; Hiroyuki Ohta; Ken-ichiro Takamiya

2002-01-01

27

VDAC and the bacterial porin PorB of Neisseria gonorrhoeae share mitochondrial import pathways  

PubMed Central

The human pathogen Neisseria gonorrhoeae induces host cell apoptosis during infection by delivering the outer membrane protein PorB to the host cell’s mitochondria. PorB is a pore-forming ?-barrel protein sharing several features with the mitochondrial voltage-dependent anion channel (VDAC), which is involved in the regulation of apoptosis. Here we show that PorB of pathogenic Neisseria species produced by host cells is efficiently targeted to mitochondria. Imported PorB resides in the mitochondrial outer membrane and forms multimers with similar sizes as in the outer bacterial membrane. The mitochondria completely lose their membrane potential, a characteristic previously observed in cells infected with gonococci or treated with purified PorB. Closely related bacterial porins of non-pathogenic Neisseria mucosa or Escherichia coli remain in the cytosol. Import of PorB into mitochondria in vivo is independent of a linear signal sequence. Insertion of PorB into the mitochondrial outer membrane in vitro depends on the activity of Tom5, Tom20 and Tom40, but is independent of Tom70. Our data show that human VDAC and bacterial PorB are imported into mitochondria by a similar mechanism. PMID:11953311

Muller, Anne; Rassow, Joachim; Grimm, Jan; Machuy, Nikolaus; Meyer, Thomas F.; Rudel, Thomas

2002-01-01

28

La servidumbre por deuda en el mbito rural del sur de la India  

E-print Network

4 83 La servidumbre por deuda en el ámbito rural del sur de la India David Picherit David Picherit trabajadores rurales migrantes en el sur de la India negocian y conciben el endeudamiento en un contexto de eventual del estatus. PalaBras clave: servidumbre por deuda, trabajo, migraciones laborales, India

Paris-Sud XI, Université de

29

Colocación de marcapasos diafragmático por toracotomía mínima para tratamiento de hipoincoercible  

Microsoft Academic Search

RESUMEN Presentamos un caso de hipo incoercible de cuatro años de duración y con clínica de pérdida de peso y fatiga. Refractario al tratamiento médico. Se le implantó un marcapasos diafragmático por vía intratorácica. Este aparato controla los movimientos del diafragma por estimulación eléctrica del nervio frénico. Se consiguió con ello disminuir la intensidad de los episodios de hipo. Este

JUAN JOSÉ FIBLA; GUILLERMO GÓMEZ; CÉSAR FARINA; GASPAR ESTRADA; CARLOS LEÓN

30

Costos generados por la violencia armada en Colombia: 1993-2003  

Microsoft Academic Search

Este documento incluye un ejercicio de valoración de los costos tanto directos como indirectos que la violencia armada ha impuesto a la economía nacional entre los años 1999 y 2003. Entre los costos considerados se cuentan aquellos generados por el daño a infraestructura energética, vial y aeroportuaria, por fenómenos como el secuestro, al extorsión, el narcotráfico, el desplazamiento forzado, el

Maria Eugenia PINTO BORREGO; Andrés VERGARA BALLEN; Yilberto LAHUERTA PERCIPIANO

2005-01-01

31

Gliding Motility and Por Secretion System Genes Are Widespread among Members of the Phylum Bacteroidetes  

PubMed Central

The phylum Bacteroidetes is large and diverse, with rapid gliding motility and the ability to digest macromolecules associated with many genera and species. Recently, a novel protein secretion system, the Por secretion system (PorSS), was identified in two members of the phylum, the gliding bacterium Flavobacterium johnsoniae and the nonmotile oral pathogen Porphyromonas gingivalis. The components of the PorSS are not similar in sequence to those of other well-studied bacterial secretion systems. The F. johnsoniae PorSS genes are a subset of the gliding motility genes, suggesting a role for the secretion system in motility. The F. johnsoniae PorSS is needed for assembly of the gliding motility apparatus and for secretion of a chitinase, and the P. gingivalis PorSS is involved in secretion of gingipain protease virulence factors. Comparative analysis of 37 genomes of members of the phylum Bacteroidetes revealed the widespread occurrence of gliding motility genes and PorSS genes. Genes associated with other bacterial protein secretion systems were less common. The results suggest that gliding motility is more common than previously reported. Microscopic observations confirmed that organisms previously described as nonmotile, including Croceibacter atlanticus, “Gramella forsetii,” Paludibacter propionicigenes, Riemerella anatipestifer, and Robiginitalea biformata, exhibit gliding motility. Three genes (gldA, gldF, and gldG) that encode an apparent ATP-binding cassette transporter required for F. johnsoniae gliding were absent from two related gliding bacteria, suggesting that the transporter may not be central to gliding motility. PMID:23123910

Zhu, Yongtao

2013-01-01

32

Science Highlight April 2011 Structure of N. meningitidis PorB. a) PorB trimer viewed from the top of  

E-print Network

backbone or can have a specific binding mode to LPS. Importantly, TLRs do not undergo affinity maturation of bacterial meningitis, which is a potentially deadly inflammation of the membranes lining the brain unexpected surprises found in the N. meningitidis PorB structure that may improve our understanding of how

Wechsler, Risa H.

33

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

34

Fuentes de variabilidad en el diagn?stico de gastritis atr?fica multifocal asociada con la infecci?n por Helicobacter pylori1  

PubMed Central

RESUMEN Introducción El mapeo de las diferentes regiones del estómago y el número de fragmentos de mucosa gástrica disponibles para evaluación histopatológica son fuentes importantes de variación en el momento de clasificar y hacer la gradación de la gastritis crónica. Objetivos Estimar la sensibilidad del número de fragmentos de mucosa gástrica necesarios para establecer los diagnósticos de gastritis atrófica con metaplasia intestinal (MI), displasia y estado de infección por Helicobacter pylori. Además evaluar la variabilidad intra-observador en la clasificación de estas lesiones precursoras del cáncer gástrico. Materiales y métodos En una cohorte de 6 años de seguimiento se evaluaron 1,958 procedimientos de endoscopia realizados por dos gastroenterólogos. En cada procedimiento y de cada participante se obtuvieron 5 biopsias de mucosa gástrica que representaban antro, incisura angularis y cuerpo. Un único patólogo hizo la interpretación histológica de las 5 biopsias y proporcionó un diagnóstico definitivo global que se utilizó como patrón de referencia. Cada fragmento de mucosa gástrica examinado condujo a un diagnóstico individual para cada biopsia que se comparó con el patrón de referencia. La variabilidad intra-observador se evaluó en 127 personas que corresponden a una muestra aleatoria de 20% del total de endoscopias hechas a los 72 meses de seguimiento. Resultados La sensibilidad del diagnóstico de MI y displasia gástrica aumentó de manera significativa con el número de fragmentos de mucosa gástrica evaluados El sitio anatómico de mayor sensibilidad para el diagnóstico de MI y displasia fue la incisura angularis. Para descubrir H. pylori se logró alta sensibilidad con el estudio de un solo fragmento de mucosa gástrica (95.9%) y fue independiente del sitio de obtención de la biopsia. El acuerdo intra-observador para el diagnóstico de gastritis crónica fue 86.1% con valor kappa de 0.79 IC 95% (0.76-0.85). Las biopsias fijadas en alcohol fueron inadecuadas para demostrar H. pylori e interpretar los cambios de displasia. Conclusión El número de fragmentos de mucosa gástrica evaluados, el método de fijación y la región del estómago donde se obtienen las biopsias son factores muy importantes para lograr una correcta clasificación de la gastritis crónica atrófica multifocal.

Bravo, Luis Eduardo; Bravo, Juan Carlos; Realpe, Jose Luis; Zarama, Guillermo; Piazuelo, MarIa Blanca; Correa, Pelayo

2014-01-01

35

Structural basis for solute transport, nucleotide regulation, and immunological recognition of Neisseria meningitidis PorB  

SciTech Connect

PorB is the second most prevalent outer membrane protein in Neisseria meningitidis. PorB is required for neisserial pathogenesis and can elicit a Toll-like receptor mediated host immune response. Here, the x-ray crystal structure of PorB has been determined to 2.3 {angstrom} resolution. Structural analysis and cocrystallization studies identify three putative solute translocation pathways through the channel pore: One pathway transports anions nonselectively, one transports cations nonselectively, and one facilitates the specific uptake of sugars. During infection, PorB likely binds host mitochondrial ATP, and cocrystallization with the ATP analog AMP-PNP suggests that binding of nucleotides regulates these translocation pathways both by partial occlusion of the pore and by restricting the motion of a putative voltage gating loop. PorB is located on the surface of N. meningitidis and can be recognized by receptors of the host innate immune system. Features of PorB suggest that Toll-like receptor mediated recognition outer membrane proteins may be initiated with a nonspecific electrostatic attraction.

Tanabe, Mikio; Nimigean, Crina M.; Iverson, T.M. (Weill-Med); (Vanderbilt)

2010-06-25

36

La UA aparece por primera vez entre las 200 mejores universidades del mundo en materia de Qumica  

E-print Network

supone un reconocimiento a la labor realizada por la instituci�n y en concreto por sus investigadores dentro de esta �rea", apunta Enrique Herrero, director del Secretariado de Investigaci�n. En concreto

Escolano, Francisco

37

In Silico Studies of Outer Membrane of Neisseria Meningitidis Por A: Its Expression and Immunogenic Properties  

PubMed Central

Neisseria meningitidis is a major causative agent of bacterial septicemia and meningitis in humans. Currently, there are no vaccines to prevent disease caused by strains of N.meningitidis serogroup B. The Class 1 Outer Membrane Protein (OMP) has been named porA which is a cation selective transmembrane protein of 45 KDa that forms trimeric pore in the meningococcal outer membrane. PorA from serogroup B N. meningitidis was cloned into prokaryotic expression vector pBAD-gIIIA. Recombinant protein was expressed with arabinose and affinity purified by Ni-NTA agarose, SDS-PAGE and western blotting were performed for protein determination and verification. BALB/c mice were immunized subcutaneously with purified rPorA together with alum adjuvant. Serum antibody responses to serogroups B N.meningitidis were determined by ELISA. Serum IgG response significantly increased in the group immunized with rPorA together with alum adjuvant in comparison with control groups. These results suggest that rPorA can be a potential vaccine candidate for serogroup B N.meningitidis. PMID:25317403

Behrouzi, Ava; Bouzari, Saeid; Siadat, Seyed Davar; Irani, Shiva

2014-01-01

38

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

E-print Network

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

Cardinale Villarreal, Yudith C.

39

Pramos de Costa Rica Editado por M. Kappelle y S. P. Horn  

E-print Network

Páramos de Costa Rica Editado por M. Kappelle y S. P. Horn ISBN 9968-927-09-0 Copyright © 2005, Editorial INBio Todos los derechos reservados G, C R1 Matthew S. Lachniet Smithsonian Tropical, Universidad de Costa Rica (UCR), 2060 San José, Costa Rica RESUMEN. En este artículo se presenta un breve

Lachniet, Matthew S.

40

Introduccion a la demostracion asistida por ordenador (con Isabelle/Isar)  

E-print Network

Introducci´on a la demostraci´on asistida por ordenador (con Isabelle/Isar) Jos´e A. Alonso Jim recursi´on primitiva . . . . . . . . . . . . . . . . . . . . . . 14 2 El lenguaje de demostraci´on Isar 15 2.1 Panorama de la sintaxis (simplificada) de Isar . . . . . . . . . . . . . . . . . 15 2

Alonso, José A.

41

Consecuencias de la restricción de peso impuesta por el deporte en la infancia  

Microsoft Academic Search

ExtractoActualmente, los competidores jóvenes emprenden programas de entrenamiento que se basan en un nivel elevado de actividad física desde una temprana edad. Este entrenamiento intensivo (volumen e intensidad) aumenta el gasto de energía, que tiene que ser compensado por una mayor ingesta nutricional. Los bailarines de ballet, los patinadores artísticos, los gimnastas o los gimnastas rítmicos comienzan a entrenar a

Nathalie Boisseau

2006-01-01

42

Insect Queens Sterilize Workers With Chemicals Escrito por Claudia Bringas Reyes  

E-print Network

Insect Queens Sterilize Workers With Chemicals Escrito por Claudia Bringas Reyes viernes, 17 de. Experts suggest that insects may have been using the chemicals to signal fertility for roughly 150 million these pheromones evolved could provide a window onto how social insects developed their cooperative living system

Wenseleers, Tom

43

Global Microlending in Education Reform: Enseñá Por Argentina and the Neoliberalization of the Grassroots  

ERIC Educational Resources Information Center

This article examines the workings and underlying assumptions behind Enseñá por Argentina (Teach for Argentina), one specific program that takes part in the larger and expanding network of Teach for All, by thinking about the ways in which a global push for redefining teaching and teacher education encounters local characteristics and histories,…

Friedrich, Daniel S.

2010-01-01

44

Prdidas de insercin en diferentes tipos de materiales y rboles El gran avance que se est produciendo en los sistemas WiFi y WiMAX, y su habitual  

E-print Network

gran avance que se está produciendo en los sistemas WiFi y WiMAX, y su habitual utilización en el mundo Dispersión Antena Polarización Banda de trabajo WiFi WiMAX #12;Pérdidas de inserción en diferentes tipos Abstract The advance occurring in WiFi and WiMAX systems, and their habitual use in the world

Autonoma de Madrid, Universidad

45

Sequence Evolution of the porB Gene of Neisseria gonorrhoeae and Neisseria meningitidis: Evidence of Positive Darwinian Selection  

Microsoft Academic Search

Protein 1 (PI) is a major porin of Neisseria gonorrhoeae and Neisseria meningitidis and is encoded by a single locus, porB. Alleles of the porB locus of N. gonorrhoeue are assigned to two homology groups, PI(A) and PI(B), on the basis of immunological and structural similarity. In a like manner, alleles of the porB locus of the closely related bacterium,

N. H. Smith; J. Maynard Smith; B. G. Spratt

46

EFICÁCIA DE TRÊS MEDICAMENTOS NO CONTROLE DA INFECÇÃO EXPERIMENTAL POR TRYPANOSOMA EVANSI EM RATOS (RATTUS NORVEGICUS) LINHAGEM WISTAR.  

E-print Network

??Este trabalho objetivou verificar os achados laboratoriais e histológicos da infecção experimental por Trypanosoma (Trypanozoon) evansi (Steel, 1885) Balbiani, 1888, em ratos (Rattus norvegicus) da… (more)

Rovaina Laureano Doyle

2006-01-01

47

Diagn?stico diferencial en la encefalitis por anticuerpos contra el receptor NMDA  

PubMed Central

Resumen Introducción La encefalitis por anticuerpos contra el receptor de NMDA (NMDAR) suele desarrollarse como un síndrome característico de evolución multifásica y diagnóstico diferencial amplio. Pacientes Presentamos a 2 pacientes diagnosticadas de encefalitis por anticuerpos NMDAR con un cuadro clínico típico, pero que inicialmente señaló otras etiologías. Discusión La afectación frecuente de pacientes jóvenes con manifestaciones psiquiátricas prominentes indica frecuentemente otras consideraciones diagnósticas; las más frecuentes son las encefalitis virales, los procesos psiquiátricos y el síndrome neuroléptico maligno. Varios síndromes previamente definidos de manera parcial o descriptiva en adultos y pacientes pediátricos probablemente eran casos de encefalitis anti-NMDAR. Conclusiones La encefalitis anti-NMDAR debe considerarse en pacientes jóvenes con manifestaciones psiquiátricas subagudas, movimientos anormales y alteraciones autonómicas. La caracterización clínica e inmunológica de esta enfermedad ha llevado a la identificación de nuevos anticuerpos que afectan a procesos de memoria, aprendizaje, conducta y psicosis. PMID:20964986

Gonzalez-Valcarcel, J.; Rosenfeld, M.R.; Dalmau, J.

2011-01-01

48

ANLISE DE SUPERFCIES BOMBARDEADAS POR FEIXES DE ELTRONS AUTOFOCALIZADOS EM UM SISTEMA DE PLAMA  

E-print Network

ANÁLISE DE SUPERFÍCIES BOMBARDEADAS POR FEIXES DE EL�TRONS AUTOFOCALIZADOS EM UM SISTEMA DE PLAMA um considerável aumento de dureza e redução de desgaste no material sem afetar suas propriedades feixes de elétrons deslocando-se em um tubo contento um gás de baixa densidade. A colisão de elétrons com

49

Pramos de Costa Rica Editado por M. Kappelle y S. P. Horn  

E-print Network

Páramos de Costa Rica Editado por M. Kappelle y S. P. Horn ISBN 9968-927-09-0 Copyright © 2005 Correo electrónico: dbarring@zoo.uvm.edu RESUMEN. Los páramos de Costa Rica albergan 25 géneros de endémica de los páramos de Costa Rica y Panamá, lo cual sugiere que estos páramos parecen formar un

Lintilhac, Philip M.

50

Un cuento distribuido por el Instituto Nacional de las Ciencias de la Salud Ambiental  

E-print Network

su cara y se peinó. Se cepilló los dientes y observó el agua saliendo del grifo y yéndose por el Herman moviendo su colita peluda le dijo ­ ¡Así es! Y acaso ¿tomaste agua antes de salir? El agua también ambiente es el aire, el agua, el suelo, y nuestra comida. En realidad, es todo lo que se encuentra

Bezrukov, Sergey M.

51

Gestión por competencias: importante para las pymes maquila de pantalón en índigo en la ciudad de Bogotá  

Microsoft Academic Search

Este artículo presenta una revisión de literatura internacional y nacional, sobre temas como el de competencias, los tipos de competencias, competencias laborales y proceso de implementación de la gestión por competencias. Adicionalmente, se muestra la reseña sobre la gestión por competencias en Colombia, así como la metodología utilizada para el trabajo de campo con relación al tema del artículo y

Nathalia Andrea Martínez Valero; Juan Carlos Rincón Gaviria

2010-01-01

52

Molecular typing of Neisseria gonorrhoeae isolates by pyrosequencing of highly polymorphic segments of the porB gene.  

PubMed

For prevention and control of gonorrhea, an objective, highly discriminating, and reproducible molecular epidemiological characterization of Neisseria gonorrhoeae is essential. In the present study, in pursuance of providing such qualities, pyrosequencing technology, a fast real-time DNA sequence analysis, was applied to six short, highly polymorphic porB gene segments, with subsequent genetic variant (genovar) determination of the bacterial isolates. The sequencing templates were obtained by real-time PCR amplification, which also included fluorescence melting curve analysis of the entire porB gene in order to determine the genogroup (porB1a or porB1b allele) prior to pyrosequencing analysis. The PSQ 96 MA system used allowed rapid (in approximately 1.5 h) determination of 96 sequences of 20 to 65 correct nucleotides each. The results were reproducible and mostly in concordance with the results of conventional Sanger dideoxy sequencing, with the exception of shorter read lengths and some uncertainty in determining the correct number of identical nucleotides in homopolymeric segments. The number of sequence variants identified in each of the six highly polymorphic segments of the porB1a and porB1b alleles (encoding surface-exposed amino acid loops of the mature PorB protein) ranged from 5 to 11 and from 8 to 39, respectively. Among porB1a isolates (n = 22) and porB1b isolates (n = 65), 22 and 64 unique genovars, respectively, were identified. All isolates were typeable. The present results provide evidence of a high discriminatory ability, practically the same as that for sequencing of the entire porB gene. In conclusion, the fast and high-throughput pyrosequencing technology can be used for molecular epidemiological characterization of N. gonorrhoeae. PMID:15243040

Unemo, Magnus; Olcén, Per; Jonasson, Jon; Fredlund, Hans

2004-07-01

53

Análise dos Conceitos Astronômicos Apresentados por Professores de Algumas Escolas Estaduais Brasileiras  

NASA Astrophysics Data System (ADS)

A razão para o desenvolvimento deste trabalho baseia-se no fato de que muitos professores da Educação Básica (EB) não lidam com conceitos relacionados à astronomia, e quando o fazem eles simplesmente seguem livros didáticos que podem conter erros conceituais. Como é de conhecimento geral a astronomia é um dos conteúdos a serem ensinados na EB fazendo parte dos Parâmetros Curriculares Nacionais e das Propostas Curriculares do Estado de São Paulo, mas é um fato, que vários pesquisadores apontam, a existência de muitos problemas no ensino da astronomia. Com o propósito de minimizar algumas dessas deficiências foi realizado um trabalho de pesquisa com a utilização de questionários pré e pós pesquisa, para tanto foi desenvolvido um Curso de Extensão Universitária para professores da Diretoria de Ensino Regional (DE) que abrange Mauá, Ribeirão Pires e Rio Grande da Serra (no Estado de São Paulo) com os seguintes objetivos: levantar concepções alternativas; subsidiar os professores por meio de palestras, debates e workshops, e verificar o sucesso da aprendizagem após o curso, adotando-se como referência, para a análise dos resultados, os dicionários de Língua Portuguesa (FERREIRA, 2004) e Enciclopédico de Astronomia e Astronáutica (MOUR?O, 1995). Portanto, dezesseis questões foram aplicadas antes e após o curso, assim pode-se verificar após a pesquisa que 100,0% dos professores sabiam os nomes das fases da Lua, 97,0% entenderam que o Sistema Solar é composto por oito planetas, 78,1% foram capazes de explicar como ocorre um eclipse lunar, um eclipse solar e um solstício, 72,7% sabiam como explicar a ocorrência das estações do ano; 64,5% explicaram corretamente a ocorrência do equinócio, 89,7% foram capazes de definir adequadamente o termo cometa; 63,6% definiram asteróide, 54,5% meteoro, 58,1% galáxia, e 42,4% planeta. Os resultados obtidos indicam uma aprendizagem significativa por parte dos participantes.

Voelzke, Marcos Rincon; Gonzaga, Edson Pereira

2011-12-01

54

Genetic polymorphisms and haplotypes of por, encoding cytochrome p450 oxidoreductase, in a Japanese population.  

PubMed

Cytochrome P450 oxidoreductase (POR) transfers electrons from NADPH to all microsomal cytochrome P450 (CYP) enzymes and is necessary for microsomal CYP activities. In this study, to find genetic variations and to elucidate the haplotype structures of POR, we comprehensively screened the genetic variations in the 5'-flanking region, all the exons and their flanking introns of POR for 235 Japanese subjects. Seventy-five genetic variations including 26 novel ones were found: 7 were in the 5'-flanking region, 2 in the 5'-untranslated region (5'-UTR, non-coding exon 1), 16 in the coding exons (10 nonsynonymous and 6 synonymous), 45 in the introns, 4 in the 3'-UTR and 1 in the 3'-flanking region. Of these, 4 novel nonsynonymous variations, 86C>T (T29M), 1648C>T (R550W), 1708C>T (R570C) and 1975G>A (A659T), were detected with allele frequencies of 0.002. We also detected known nonsynonymous SNPs 683C>T (P228L), 1237G>A (G413S), 1453G>A (A485T), 1508C>T (A503V), 1510G>A (G504R) and 1738G>C (E580Q) with frequencies of 0.002, 0.009, 0.002, 0.434, 0.002 and 0.002, respectively. Based on the linkage disequilibrium (LD) profiles, the analyzed region could be divided into two LD blocks. For Blocks 1 and 2, 14 and 46 haplotypes were inferred, respectively, and 2 and 6 common haplotypes found in more than 0.03 frequencies accounted for more than 81% of the inferred haplotypes. This study provides fundamental and useful information for the pharmacogenetic studies of drugs metabolized by CYPs in the Japanese population. PMID:21084761

Saito, Yoshiro; Yamamoto, Noboru; Katori, Noriko; Maekawa, Keiko; Fukushima-Uesaka, Hiromi; Sugimoto, Daisuke; Kurose, Kouichi; Sai, Kimie; Kaniwa, Nahoko; Sawada, Jun-Ichi; Kunitoh, Hideo; Ohe, Yuichiro; Yoshida, Teruhiko; Matsumura, Yasuhiro; Saijo, Nagahiro; Okuda, Haruhiro; Tamura, Tomohide

2011-01-01

55

Los dioses en sí mismos: lo afrocubano en Requiem por Yarini de Carlos Felipe  

E-print Network

por Yarini. Felipe es uno de los mejores dramaturgos de la generación anterior a 1959. Sobre su teatro, Riñe Leal comenta: Lo q ue Carlos Felipe ha significado en importancia para nuestra escena es que junto a Virgilio Pinera y Rolando Ferrer le... convencer a Yarini de que ahora todo depende de él porque las fuerzas mágicas ya están de su parte, y para esto le manifiesta: En estos momentos todos los batas de la isla están sonando pidiendo para ti. No hay mano negra de Yoruba maestro, que no esté...

Linares-Ocanto, Luis

2000-04-01

56

Se calcula que los costos del cáncer ascenderán por lo menos a $158.000 millones en 2020  

Cancer.gov

Con base en el crecimiento y en el avance de edad de la población de EE. UU., se proyecta que los gastos médicos por cáncer en el año 2020 ascenderán por lo menos a $158.000 millones (en dólares de 2010); lo que significa un aumento de 27% sobre 2010. Si los instrumentos creados últimamente para diagnosticar, tratar y seguir observando el cáncer continúan subiendo de precio, los gastos médicos por cáncer podrían ascender hasta $207.000 millones. Las proyecciones están basadas en los datos más recientes disponibles acerca de la incidencia del cáncer, de supervivencia y de costos de atención médica.

57

Effect of SPM-based cleaning POR on EUV mask performance  

NASA Astrophysics Data System (ADS)

EUV masks include many different layers of various materials rarely used in optical masks, and each layer of material has a particular role in enhancing the performance of EUV lithography. Therefore, it is crucial to understand how the mask quality and patterning performance can change during mask fabrication, EUV exposure, maintenance cleaning, shipping, or storage. The fact that a pellicle is not used to protect the mask surface in EUV lithography suggests that EUV masks may have to undergo more cleaning cycles during their lifetime. More frequent cleaning, combined with the adoption of new materials for EUV masks, necessitates that mask manufacturers closely examine the performance change of EUV masks during cleaning process. We have investigated EUV mask quality and patterning performance during 30 cycles of Samsung's EUV mask SPM-based cleaning and 20 cycles of SEMATECH ADT exposure. We have observed that the quality and patterning performance of EUV masks does not significantly change during these processes except mask pattern CD change. To resolve this issue, we have developed an acid-free cleaning POR and substantially improved EUV mask film loss compared to the SPM-based cleaning POR.

Choi, Jaehyuck; Lee, Han-shin; Yoon, Jinsang; Shimomura, Takeya; Friz, Alex; Montgomery, Cecilia; Ma, Andy; Goodwin, Frank; Kang, Daehyuk; Chung, Paul; Shin, Inkyun; Cho, H.

2011-11-01

58

Immunization with the Recombinant PorB Outer Membrane Protein Induces a Bactericidal Immune Response against Neisseria meningitidis  

Microsoft Academic Search

Infections with Neisseria meningitidis are characterized by life-threatening meningitis and septicemia. The meningococcal porin proteins from serogroup B meningococci have been identified as candidates for inclusion in vaccines to prevent such infections. In this study, we investigated the vaccine potential of the PorB porin protein free of other meningococcal components. The porB gene from a strain of Neisseria meningitidis express-

J. Claire Wright; Jeannette N. Williams; Myron Christodoulides; John E. Heckels

2002-01-01

59

Trazodona: ¿Nuevo enfoque selectivo para el tratamiento de los sofocos generados por la deprivación androgénica en el carcinoma prostático?  

Microsoft Academic Search

toxicidad nada despreciable. Dentro del tratamiento no hormonal de esta patología juegan un papel destacado los antidepresivos. Latrazodona,unantidepresivoSARI(inhibidoresdelarecaptacióndeserotonina\\/antagonistadela2A),conunperfildeactua - ciónmásselectivosobrelosreceptoresimplicadosenlossofocos;podríaserdegraninterés.Trazodonamuestraunagranafinidad por los receptores 5-HT 2A y una moderada afinidad por los receptores 5-HT 1A. Comoesconocidolosnivelesdeserotonina(5-hidroxitriptaminao5-HT)enmujerespostmenopáusicasestándisminuidos,nor - malizándoseconlasterapiassustitutivas.Todoellosugierequeladeprivaciónabruptadehormonassexualesdalugaraunareduc - ción en la circulación de serotonina, con el consiguiente aumento de sus receptores 5-HT 2A hipotalámicos. Estos receptores esta - rían implicados

Santiago Vilar González; Francesc Montañá Puig; Sebastiá Sabater Martí; Manuel Aguayo Martos

2009-01-01

60

El MUA acoge una jornada cultural organizada por alumnos de Publicidad Alicante, 9 de marzo de 2012  

E-print Network

Malabares y una muestra de Capoeira y bailes coreográficos abiertos a todo el que quieran participar. A las de Malabares en el patio interior del MUA 12. 00­ 14.45 horas Batukada por el campus y Capoeira en el Talleres de magia en el patio interior del MUA 14.00 ­ 14.45 horas Batukada por el campus y Capoeira en el

Escolano, Francisco

61

Distribucin de los graduados en titulaciones de centros propios en el curso acadmico 2007 / 2008, por centro, plan de estudios y sexo.  

E-print Network

, por centro, plan de estudios y sexo. CENTRO PLAN DE ESTUDIOS TOTAL MUJERES CIENCIAS DIPLOMADO EN académico 2007 / 2008, por centro, plan de estudios y sexo. CENTRO PLAN DE ESTUDIOS TOTAL MUJERES ESC. UNIV

Autonoma de Madrid, Universidad

62

O Debate sobre a Homossexualidade Mediado por Representações Sociais: Perspectivas Homossexuais e Heterossexuais The Debate on Homosexuality Mediated by Social Representations: Homosexual and Heterosexual Perspectives  

Microsoft Academic Search

Resumo O objetivo deste trabalho foi estudar as representações sociais da homossexualidade entre estudantes universitários, segundo orientação sexual e sexo. Foram aplicadas uma questão de associação livre sobre a palavra homossexualidade e outra sobre as possíveis causas da mesma, sendo os dados analisados segundo os princípios da análise de conteúdo. Houve diferenças significativas entre os grupos, possibilitando-nos encontrar diferentes maneiras

Anderson Scardua; Edson Alves de Souza

63

Substrate-specific modulation of CYP3A4 activity by genetic variants of cytochrome P450 oxidoreductase (POR)  

PubMed Central

Objectives CYP3A4 receives electrons from P450 oxidoreductase (POR) to metabolize about 50% of clinically used drugs. There is substantial inter-individual variation in CYP3A4 catalytic activity that is not explained by CYP3A4 genetic variants. CYP3A4 is flexible and distensible, permitting it to accommodate substrates varying in shape and size. To elucidate mechanisms of variability in CYP3A4 catalysis, we examined the effects of genetic variants of POR, and explored the possibility that substrate-induced conformational changes in CYP3A4 differentially affect the ability of POR variants to support catalysis. Methods We expressed human CYP3A4 and four POR variants (Q153R, A287P, R457H, A503V) in bacteria, reconstituted them in vitro and measured the Michaelis constant and maximum velocity with testosterone, midazolam, quinidine and erythromycin as substrates. Results POR A287P and R457H had low activity with all substrates; Q153R had 76–94% of wild type (WT) activity with midazolam and erythromycin, but 129–150% activity with testosterone and quinidine. The A503V polymorphism reduced CYP3A4 activity to 61–77% of wild type with testosterone and midazolam, but had nearly wild type activity with quinidine and erythromycin. Conclusion POR variants affect CYP3A4 activities. The impact of a POR variant on catalysis by CYP3A4 is substrate-specific, probably due to substrate-induced conformational changes in CYP3A4. PMID:20697309

Agrawal, Vishal; Choi, Ji Ha; Giacomini, Kathleen M.; Miller, Walter L.

2010-01-01

64

Estudio financiado por NIH muestra un riesgo mayor de cáncer de próstata debido a complementos de vitamina E  

Cancer.gov

De acuerdo a una revisión ulterior de los datos del Estudio del Selenio y la Vitamina E para Prevenir el Cáncer (SELECT), los hombres que tomaron diariamente 400 unidades internacionales (U.I.) de vitamina E tuvieron más cánceres de próstata que los hombres que tomaron un placebo. Los resultados mostraron que, por cada 1 000 hombres, hubo 76 casos de cáncer de próstata entre hombres que tomaron solamente complementos de vitamina E en comparación con 65 casos de cáncer entre hombres que tomaron un placebo durante un período de 7 años; es decir, 11 casos más de cáncer de próstata por cada 1 000 hombres. Esto representa un aumento de 17% en cánceres de próstata en relación con los que tomaron un placebo. Esta diferencia fue estadísticamente significativa y, por lo tanto, es posible que no se deba a la casualidad.

65

Obtención de la curva de luz en la ocultación de 35 Sgr por Júpiter el 6 de marzo de 1996  

NASA Astrophysics Data System (ADS)

La ocultación de la estrella de quinta magnitud 35 Sgr por Júpiter, se produjo el 6 de Marzo de 1996 a las 13 hs. TU. El objetivo era medir el cambio del flujo de la estrella en el ingreso y egreso por el limbo del planeta. Con estos datos se pueden determinar parámetros físicos del planeta (radio, eccentricidad) y de su atmósfera (escala de altura, temperatura, densidad, presión) Para lograr ésto se programó la cámara CCD TH 7896 1024 x 1025 instalada en el telescopio de 1.54 m de Bosque Alegre con el objetivo de lograr 2 imágenes por segundo. De esta forma se obtuvieron 2100 imágenes de la inmersión y otras tantas de la emersión. Hubo que tener grandes precauciones para evitar la saturación del CCD ya que la observación se realizó de día. En este momento las imágenes se encuentran en el Department of Planetary Sciences, Lunar and Planetary Laboratory, University of Arizona, para su reducción.

Paolantonio, S.; Duffard, R.; Carranza, G.

66

C ALCULO Y DISE ~NO ASISTIDO POR ORDENADOR DE TOMAS DE TIERRA CON MODELOS DE SUELO NO UNIFORMES  

E-print Network

C ALCULO Y DISE ~NO ASISTIDO POR ORDENADOR DE TOMAS DE TIERRA CON MODELOS DE SUELO NO UNIFORMES suelo no uniformes. La formulacion se ha derivado especialmente para modelos de terreno de dos capas a disposiciones muy simples de los electrodos de tierra en modelos de suelo uniforme, elevados requerimientos

Colominas, Ignasi

67

Mutations in Helicobacter pylori porD and oorD Genes May Contribute to Furazolidone Resistance  

PubMed Central

Aim To determine the rate of furazolidone resistance of Helicobacter pylori (H. pylori) isolated from gastric biopsy specimens and to explore the relationship between genetic mutations in porD and oorD genes of H. pylori and its resistance to the antibiotic. Methods Gastric biopsy was performed in 83 adult patients aged 31-77 years with gastric complaints. H. pylori was isolated from biopsy specimens of 46 patients. E-test and 2-fold agar dilution method were used to determine the rate of H. pylori resistance to furazolidone. The genes porD and oorD from susceptible and resistant isolates were amplified by polymerase chain reaction (PCR), and their PCR products were sequenced. Results Resistance to furazolidone was found in 8.7% of H. pylori isolates and 6 mutations were detected in porD and oorD genes of the resistant isolates. Three mutations – G353A, A356G, and C357T – occurred in porD and the other mutations – A041G, A122G, C349A(G) – occurred in oorD genes. Conclusions Changes in 6 amino acids may be associated with the resistance of H. pylori to furazolidone. PMID:16758519

Su, Zhaoliang; Xu, Huaxi; Zhang, Chiyu; Shao, Shihe; Li, Liangju; Wang, Hua; Wang, Huifang; Qiu, Gufeng

2006-01-01

68

La percepcin de los impactos del turismo residencial por parte de la sociedad receptora1 Raquel Huete  

E-print Network

1 La percepción de los impactos del turismo residencial por parte de la sociedad receptora1 Raquel sobre turismo y sociedad. IESA-CSIC Córdoba, febrero de 2008 Resumen La pregunta que orienta el trabajo), indirectamente (técnicos de turismo, presidentes de asociaciones de comerciantes, directores de entidades

Escolano, Francisco

69

Molecular Typing of Neisseria gonorrhoeae Isolates by Pyrosequencing of Highly Polymorphic Segments of the porB Gene  

Microsoft Academic Search

For prevention and control of gonorrhea, an objective, highly discriminating, and reproducible molecular epidemiological characterization of Neisseria gonorrhoeae is essential. In the present study, in pursuance of providing such qualities, pyrosequencing technology, a fast real-time DNA sequence analysis, was applied to six short, highly polymorphic porB gene segments, with subsequent genetic variant (genovar) determination of the bacterial isolates. The sequencing

Magnus Unemo; Per Olcen; Jon Jonasson; Hans Fredlund

2004-01-01

70

Por qu se invierte en plantaciones de Jatropha? Respuestas desde Costa Rica Abigail Fallot a,b,*  

E-print Network

1 Título ¿Por qué se invierte en plantaciones de Jatropha? Respuestas desde Costa Rica Autores, France b CATIE, Programa cambio climático y cuencas, 30501 Turrialba, Costa Rica * Contacto: fallot de plantaciones de Jatropha curcas (Tempate) para biodiesel, analizamos el caso de Costa Rica donde

Paris-Sud XI, Université de

71

Declaración del Instituto Nacional del Cáncer sobre la aprobación de la vacuna de VPH por la FDA  

Cancer.gov

Hace casi dos décadas que los investigadores del NCI y de otras instituciones comenzaron a investigar las causas fundamentales del cáncer cervical. Esta búsqueda científica resultó en la aprobación de hoy de la vacuna GardasilTM por la Food and Drug Administration.

72

Inversor Resonante de Tres Elementos L-LC con Caracteristica Cortocircuitable para Aplicaciones de Calentamiento por Induccion  

NASA Astrophysics Data System (ADS)

Los generadores de calentamiento por induccion son puentes inversores con carga resonante, cuya mision es basicamente crear una corriente sinusoidal de gran amplitud sobre la "bobina de caldeo", que forma parte del tanque resonante. En el interior de esta bobina se introduce la pieza que se desea calentar. EI campo magnetico creado induce corrientes superficiales (corrientes de Foucault) sobre la pieza, que producen su calentamiento. Los tanques resonantes (tambien llamados osciladores) utilizados en la actualidad son el resonante serie y el resonante paralelo. Aunque ya desde hace algun tiempo se vienen construyendo generadores de alta potencia basados en estos dos osciladores, el exito nunca ha. sido completo en ninguno de los dos casos. Tal y como se explica en la introduccion de esta memoria, los puentes inversores utilizados deben operar sobre una carga inductiva (corriente retrasada) para evitar el fenomeno de la recuperacion inversa de sus diodos y la consiguiente ruptura de los transistores. De la restriccion topologica anterior se deduce que el generador paralelo debe conmutar a frecuencias inferiores a la resonancia, y el serie a frecuencias superiores. A esta restriccion topologica hay que unir otra que es exclusiva del calentamiento por induccion: La corriente por la bobina de caldeo debe ser sinusoidal. De no ser asi, resultaria imposible disponer toda la potencia de calentamiento sobre la pieza en el espesor requerido por la aplicacion. Como consecuencia, los inversores no pueden operar por debajo de la frecuencia de resonancia del oscilador, pues en ese caso se amplifican los armonicos de orden superior de la tension/corriente de entrada situados sobre la resonancia, con la consiguiente distorsion de la corriente de salida. La conjuncion de las dos restricciones anteriores obligan al inversor paralelo a funcionar a la frecuencia de resonancia del oscilador. Esto imposibilita un control por variacion de frecuencia, regulandose la potencia desde la seccion de entrada mediante un mayor o menor aporte de corriente al puente. Como consecuencia, la seccion de entrada del paralelo, ya de por si mas voluminosa que lao del serie por el uso de grandes componentes magneticos (bobinas de filtro o de "alisamiento"), result a tambien mas complicada y costosa debido a la necesidad de ser implementada mediante rectificador controlado. Ademas, la regulacion que ofrece el rectificador es pobre, dada su baja frecuencia de conmutacion. En cambio, el circuito serie puede funcionar por encima de la resonancia manteniendo una secuencia de conmutacion sin riesgos de recuperacion inversa y con una corriente de salida practicamente sinusoidal, lo que permite un control de la potencia por variacion de frecuencia. Puesto que la tarea de regulacion se realiza desde el puente inversor, la regulacion resulta mucho mas eficaz y la seccion de entrada se puede implementar mediante un simple rectificador no controlado y un condensador de filtro. (Abstract shortened by UMI.).

Espi Huerta, Jose Miguel

73

Hiperfenilalaninemia por deficiência de fenilalanina hidroxilase : avaliação da responsividade ao BH4 em pacientes acompanhados no Serviço de Genética Médica do HCPA e que apresentam controle metabólico adequado.  

E-print Network

??Introdução: Estudos recentes, utilizando vários protocolos, têm demonstrado que pacientes com Hiperfenilalaninemia por deficiência de fenilalanina hidroxilase (HPA-PAH) podem apresentar redução das concentrações plasmáticas de… (more)

Tatiéle Nalin

2011-01-01

74

El Parque Municipal de El Campello exhibe Las Meninas realizadas con material reciclado por profesores de la Universidad de Alicante  

E-print Network

reutilizados con el objetivo de fomentar el reciclaje a través del arte. La inauguración de la muestra contó exposición viva". Vida/reciclaje versus muerte/no reciclaje El hilo conductor de la exposición, realizada por (ingeniero industrial), todos ellos de la Universidad de Alicante, es transmitir el mensaje de la vida/reciclaje

Escolano, Francisco

75

Estudio sobre las dosis de radiación y los riesgos de cáncer causados por la prueba atómica “Trinity” realizada en 1945  

Cancer.gov

El NCI tiene planeado realizar entrevistas en profundidad para determinar cuál era la alimentación característica de las poblaciones indígenas americanas, hispanas (latinas) y chicanas que vivían en New Mexico a mediados de 1940 y utilizar información fácilmente disponible sobre la alimentación y el estilo de vida de las poblaciones blancas. Estas entrevistas representan un paso importante para hacer estimaciones de las dosis de radiación generadas por la prueba Trinity.

76

PRACTICA 2: Ecologa aplicada al diseo de medidas correctoras de la fragmentacin de hbitats por infraestructuras lineales de  

E-print Network

para la caracterización y censo de vertebrados del entorno de las estructuras de la A-15 5. Metodología seguimiento de la utilización de las estructuras transversales a la vía Sesión 3: Síntesis ecológica. Análisis tipos de estructuras 3. Análisis conjunto de la utilización por los vertebrados de distintos tipos de

Rodríguez, Miguel Ángel

77

TABLA DE ADAPTACIONES DE ASIGNATURAS SUPERADAS EN EL PROGRAMA SIMULTNEO DERECHO-ADE POR LAS ASIGNATURAS DEL GRADO DE ADE  

E-print Network

TABLA DE ADAPTACIONES DE ASIGNATURAS SUPERADAS EN EL PROGRAMA SIMULTÁNEO DERECHO-ADE POR LAS ASIGNATURAS DEL GRADO DE ADE 1º CURSO ADE Créditos Tipo DERECHO-ADE Créditos Tipo Matemáticas I 6 FB Economía de la Empresa 6 FB Derecho de la Empresa 6 FB Derecho Mercantil I 6 OB Matemáticas II 6 FB

Escolano, Francisco

78

Derechos Bsicos de Ausencia La Ley de Ausencia Familiar y Mdica (FMLA-por sus siglas en ingls) exige  

E-print Network

Derechos Básicos de Ausencia La Ley de Ausencia Familiar y Médica (FMLA-por sus siglas en inglés condición de salud seria que le impida al empleado desempeñar su puesto. Derechos de Ausencia Para Familias avisado de una llamada a estado de servicio activo bajo cobertura pueden usar su derecho de ausencia de 12

Rock, Chris

79

TABLA DE ADAPTACIONES DE ASIGNATURAS SUPERADAS EN EL PROGRAMA SIMULTNEO DERECHO-ADE POR LAS ASIGNATURAS DEL GRADO DE DERECHO  

E-print Network

TABLA DE ADAPTACIONES DE ASIGNATURAS SUPERADAS EN EL PROGRAMA SIMULTÁNEO DERECHO-ADE POR LAS ASIGNATURAS DEL GRADO DE DERECHO 1º CURSO DERECHO Créditos Tipo DERECHO-ADE Créditos Tipo Derecho Romano 6 FB Derecho Romano 6 FB Historia del Derecho Español y de las Instituciones 6 FB Historia del Derecho Español

Escolano, Francisco

80

Multiscale Habitat Selection by Ruffed Grouse at Low Population Densities (Seleccin de Hbitat a Varias Escalas por Bonasa umbellus a Densidades Poblacionales Bajas)  

E-print Network

a Varias Escalas por Bonasa umbellus a Densidades Poblacionales Bajas) Author(s): Guthrie S. Zimmerman, R óptimo para Bonasa umbellus. Usamos la fase de densidad poblacional pequeña del ciclo de una población de por Bonasa umbellus a Densidades Poblacionales bajas Abstract. Theory suggests habita

Gutiérrez, R.J.

81

IMPUESTO FEDERAL A LOS SUELDOS GENERADO POR LAS MICROEMPRESAS: CASO CANCÚN, MÉXICO \\/ FEDERAL INCOME TAX ON SALARIES GENERATED BY MICRO-ENTERPRISES: CASE CANCÚN, MEXICO  

Microsoft Academic Search

Se plantea el objetivo de identificar, a través de una muestra representativa de microempresas (mipyme) de sectores económicos que dependen del turismo, cuáles son los rangos de sueldos y el sector a que pertenecen aquellos que generan una mayor recaudación fiscal o, caso contrario,son mayormente subsidiados por el gobierno. Las obligaciones fiscales para las mipymes en México son múltiples, por

Sergio Lagunas Puls; Miguel Angel Olivares Urbina; Natascha Tamara Post

2012-01-01

82

No es pues de extraar que el tratado siga generando controver-sia. Mientras sus defensores dan crdito al tratado por estimular  

E-print Network

vida de la mayoría de las personas. En Estados Unidos se culpa al tratado por la pérdida de empleos para desplegar políticas adecuadas para el bienestar social. En México, se culpa al TLCAN por crear

Tufts University

83

Proceso de cloracin La cantidad de cloro necesaria es determinada por la cantidad de agua estancada en el pozo. Contacte a la compaa  

E-print Network

Proceso de cloración La cantidad de cloro necesaria es determinada por la cantidad de agua el nivel de agua estática. La profundidad del agua estancada en el pozo será la profundidad del pozo menos el nivel del agua estática. Por ejemplo, un pozo de agua de 110 pies de profundidad con un nivel

84

El Informe Anual a la Nación indica que la tasa de mortalidad por cáncer está bajando el doblesu enfoque especial examina el cáncer entre los indígenas americanos y los nativos de Alaska  

Cancer.gov

Según un nuevo informe de las principales organizaciones oncológicas de la nación, las tasas de mortalidad por cáncer disminuyeron en promedio 2,1 por ciento por año de 2002 a 2004; casi el doble de la disminución anual de 1,1 por ciento por año de 1993 a 2002. Estos resultados se encuentran en el "Informe Anual a la Nación sobre el Estado del Cáncer de 1975 a 2004. Preguntas y respuestas

85

Hitchcock and the art of murder: selected films 1945-60; Hitchcock e a arte do assassínio: filmes seleccionados 1945-60.  

E-print Network

??O presente trabalho propõe-se examinar diferentes representações e interpretações do assassínio enquanto arte. Esta dissertação tem por objectivo analisar filmes seleccionados realizados por Alfred Hitchcock… (more)

Paula, Marlene Monteiro Pires de

2006-01-01

86

Monitoring Shifts in the Conformation Equilibrium of the Membrane Protein Cytochrome P450 Reductase (POR) in Nanodiscs*  

PubMed Central

Nanodiscs are self-assembled ?50-nm2 patches of lipid bilayers stabilized by amphipathic belt proteins. We demonstrate that a well ordered dense film of nanodiscs serves for non-destructive, label-free studies of isolated membrane proteins in a native like environment using neutron reflectometry (NR). This method exceeds studies of membrane proteins in vesicle or supported lipid bilayer because membrane proteins can be selectively adsorbed with controlled orientation. As a proof of concept, the mechanism of action of the membrane-anchored cytochrome P450 reductase (POR) is studied here. This enzyme is responsible for catalyzing the transfer of electrons from NADPH to cytochrome P450s and thus is a key enzyme in the biosynthesis of numerous primary and secondary metabolites in plants. Neutron reflectometry shows a coexistence of two different POR conformations, a compact and an extended form with a thickness of 44 and 79 ?, respectively. Upon complete reduction by NADPH, the conformational equilibrium shifts toward the compact form protecting the reduced FMN cofactor from engaging in unspecific electron transfer reaction. PMID:22891242

Wadsäter, Maria; Laursen, Tomas; Singha, Aparajita; Hatzakis, Nikos S.; Stamou, Dimitrios; Barker, Robert; Mortensen, Kell; Feidenhans'l, Robert; Møller, Birger Lindberg; Cárdenas, Marité

2012-01-01

87

Efeitos de um programa de ginástica laboral sobre as principais sintomatologias das lesões por esforço repetitivo / distúrbios osteomusculares relacionados ao trabalho (LER/DORT): dor e fadiga.  

E-print Network

??As LER/DORT (Lesões por Esforços Repetitivos/Distúrbios Osteomusculares Relacionados ao Trabalho) tomaram proporções de grande medida e tornaram-se um problema de interesse e responsabilidade de todos,… (more)

Cynara Cristina Domingues Alves Pereira

2009-01-01

88

Un estudio financiado por los Institutos Nacionales de la Salud (NIH) muestra reducción en la mortalidad entre hombres con cáncer de próstata en grado intermedio:  

Cancer.gov

Terapia hormonal por corto tiempo administrada en combinación con radioterapia a hombres con cáncer de próstata en estadio inicial aumentó sus posibilidades de vivir más en comparación con tratamiento de radioterapia sola, según un estudio clínico patrocinado por el NCI. Los beneficios del tratamiento combinado se limitaron principalmente a pacientes con enfermedad de riesgo intermedio y no se observaron en hombres con cáncer de próstata de riesgo bajo, indican los investigadores.

89

Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

últimos años, los estudios turísticos han ido dando una creciente relevancia al rol del turismo (y las consecuencias que el turismo, como vector del cambio climático, tiene sobre otros sectores propuestas que la industria y diferentes instituciones plantean para amortiguar o compensar ese impacto

Paris-Sud XI, Université de

90

Reactions of nitrogen oxides with the five-coordinate Fe(III)(porphyrin) nitrito intermediate Fe(Por)(ONO) in sublimed solids.  

PubMed

Detailed experimental studies are described for reactions of several nitrogen oxides with iron porphyrin models for heme/NxOy systems. It is shown by FTIR and optical spectroscopy and by isotope labeling experiments that reaction of small increments of NO2 with sublimed thin layers of the iron(II) complex Fe(Por) (Por = meso-tetraphenylporphyrinato dianion, TPP, or meso-tetra-p-tolylporphyrinato dianion, TTP) leads to formation of the 5-coordinate nitrito complexes Fe(Por)(eta1-ONO) (1), which are fairly stable but very slowly decompose under vacuum giving mostly the corresponding nitrosyl complexes Fe(Por)(NO). Further reaction of 1 with new NO2 increments leads to formation of the nitrato complex Fe(Por)(eta2-O2NO) (2). The interaction of NO with 1 at low temperature involves ligand addition to give the nitrito-nitrosyl complexes Fe(Por)(eta1-ONO)(NO) (3); however, these isomerize to the nitro-nitrosyl analogs Fe(Por)(eta1-NO2)(NO) (4) upon warming. Experiments with labeled nitrogen oxides argue for an intramolecular isomerization ("flipping") mechanism rather than one involving dissociation and rebinding of NO2. The Fe(III) centers in the 6-coordinate species 3 and 4 are low spin in contrast to 1, which appears to be high-spin, although DFT computations of the porphinato models Fe(P)(nitrite) suggest that the doublet nitro species and the quartet and sextet nitrito complexes are all relatively close in energy. The nitro-nitrosyl complex 4 is stable under an NO atmosphere but decomposes under intense pumping to give a mixture of the ferrous nitrosyl complex Fe(Por)(NO) and the ferric nitrito complex Fe(Por)(eta1-ONO) indicating the competitive dissociation of NO and NO2. Hence, loss of NO from 4 is accompanied with nitro --> nitrito isomerization consistent with 1 being the more stable of the 5-coordinate NO2 complexes of iron porphyrins. PMID:17338521

Kurtikyan, Tigran S; Hovhannisyan, Astghik A; Hakobyan, Manya E; Patterson, James C; Iretskii, Alexei; Ford, Peter C

2007-03-28

91

CELULITIS POR CITOMEGALOVIRUS  

Microsoft Academic Search

Cytomegalovirus cellulitis. Cutaneous lesions in CMV infection are rare, often a late manifestation of systemic infection, and usually herald a fatal course. A 70 year-old woman received a kidney transplantation one month before consulting and immunosuppressive therapy that included cyclosporine A and methylprednisone. She complained of fever, local pain in her right leg, and an erythematous and swelling plaque. She

ALEJANDRO RUIZ LASCANO; RAQUEL KUZNITZKY; ILIANA GARAY; MARIA KURPIS; PABLO MASSARI

92

OJO POR OJO  

Microsoft Academic Search

THIS VIDEO WAS MADE FOR THE OPENING SHOW OF AN ART PAINTING NATIONAL FESTVAL IN MEXICO AND IS A TRIBUTE TO THE EYE, WE USED SEVERAL KINDS OF EYES IN ITS FORM OR IN ITS PARTICULAR NAME THAT YOU FIND IN ESPANISH LENGAGESLIKE THE HURACANS EYE, OR THE EYE OF A NEDLE, BUT NOT A HUMAN EYE. SUPORT WITH MOTIONS

2001-01-01

93

Intoxicación aguda por plaguicidas  

Microsoft Academic Search

Objective. To describe the epidemiologic pattern of acute pesticide poisoning (APP) in a general hospital in Merida, Yucatan, Mexico. Material and methods. From 1994 to 1998, 33 patients 13 years of age or older with diagnosis of APP were studied. Descriptive statistics were used to ana- lyze information. Results. Males were frequently affect- ed (82%), specially those coming from rural

Jaime Jesús Durán-Nah; Julián Collí-Quintal

2000-01-01

94

Estudio teórico de la desorción de Na y K de SiO2 estimulada por la acción de fotones o electrones  

NASA Astrophysics Data System (ADS)

Se ha estudiado el mecanismo de generación de sodio y potasio atómico a partir de muestras de SiO2 utilizando cálculos basados tanto en la teoría del funcional de la densidad como en métodos post-Hartree Fock, así como en el método de cluster para modelar el sólido. Como consecuencia del estudio se han propuesto distintos caminos posibles para la desorción, estimulada por la acción de fotones o electrones, de sodio y potasio desde el óxido de silicio, proporcionando por lo tanto una explicación a la atmósfera tenue de sodio y potasio de La Luna.

Domínguez Ariza, D.; López, N.; Illas, F.; Pacchioni, G.; Madey, T. E.

95

Spectroscopic and kinetic characterization of the light-dependent enzyme protochlorophyllide oxidoreductase (POR) using monovinyl and divinyl substrates.  

PubMed

The enzyme POR [Pchlide (protochlorophyllide) oxidoreductase] catalyses the reduction of Pchlide to chlorophyllide, which is a key step in the chlorophyll biosynthesis pathway. This light-dependent reaction has previously been studied in great detail but recent reports suggest that a mixture of MV (monovinyl) and DV (divinyl) Pchlides may have influenced some of these properties of the reaction. Low-temperature absorbance and fluorescence spectroscopy have revealed several spectral differences between MV and DV Pchlides, which were purified from a Rhodobacter capsulatus strain that was shown to contain a mixture of the two pigments. A thorough steady-state kinetic characterization using both Pchlide forms demonstrates that neither pigment appears to affect the kinetic properties of the enzyme. The reaction has also been monitored following illumination at low temperatures and was shown to consist of an initial photochemical step followed by four 'dark' steps for both pigments. However, minor differences were observed in the spectral properties of some of the intermediates, although the temperature dependency of each step was nearly identical for the two pigments. This work provides the first detailed kinetic and spectroscopic study of this unique enzyme using biologically important MV and DV substrate analogues. It also has significant implications for the DV reductase enzyme, which is responsible for converting DV pigments into their MV counterparts, and its position in the sequence of reactions that comprise the chlorophyll biosynthesis pathway. PMID:16274361

Heyes, Derren J; Kruk, Jerzy; Hunter, C Neil

2006-02-15

96

El proceso hacia la integracion de la equidad por genero al curriculo.(The Process of the Integration of Gender Equity in the Curriculum.)  

ERIC Educational Resources Information Center

"El Proyecto Colaborativo de Equidad por Genero en la Educacion," or the Collaborative Project for Gender Equity in Education, was undertaken in Puerto Rico between 1990 and 1992 to study how to facilitate the integration of gender equity themes in the curriculum through the direct action of participating teachers. A study examined the attitudes…

Rivera-Bermudez, Carmen D.

97

Nuevo sitio web en español del Instituto Nacional del Cáncer, (NCI, por sus siglas en inglés) Cancer.gov en español - Silvia Inéz Salazar - transcript  

Cancer.gov

Transmisiones de radio para promover Cancer.gov en espa%XF1ol | Nuevo sitio web en espa%XF1ol del Instituto Nacional del C%XE1ncer, (NCI, por sus siglas en ingl%XE9s) Cancer.gov en espa%XF1ol | Transcripci%XF3n Transmisiones de radio para promover

98

Instituciones al Servicio de los Hispanos están a la vanguardia de la investigación de las desigualdades en salud por cáncer en la comunidad latina  

Cancer.gov

Varias Instituciones al Servicio de los Hispanos forman parte de un grupo de escuelas profesionales y universidades que se han asociado con el Instituto Nacional del Cáncer (NCI) y cierto número de centros oncológicos regionales para abordar el tema de las desigualdades en salud por cáncer que afectan a la comunidad latina.

99

Estudio financiado por los NIH indica un aumento de la supervivencia en hombres con cáncer de próstata metastásico que reciben quimioterapia desde el inicio de la terapia hormonal  

Cancer.gov

Los hombres con cáncer de próstata metastásico sensible a las hormonas que recibieron el fármaco quimioterapéutico docetaxel al inicio de la terapia hormonal convencional vivieron más tiempo que los pacientes que recibieron solo terapia hormonal, de acuerdo con los resultados preliminares de un estudio clínico controlado y aleatorizado patrocinado por los Institutos Nacionales de la Salud (NIH).

100

Ctedra Telefnica -UIB: Sanidad Digital y Turismo Sostenible La Ctedra Telefnica de la UIB para Sanidad Digital y Turismo Sostenible, creada por  

E-print Network

Cátedra Telefónica - UIB: Sanidad Digital y Turismo Sostenible La Cátedra Telefónica de la UIB para Sanidad Digital y Turismo Sostenible, creada por la iniciativa de la Universidad de las Illes Balears y actual e identificar las tendencias sobre el impacto de la tecnología en la sociedad. Se trata de

Oro, Daniel

101

Saturating Mutagenesis of an Essential Gene: a Majority of the Neisseria gonorrhoeae Major Outer Membrane Porin (PorB) Is Mutable  

PubMed Central

The major outer membrane porin (PorB) of Neisseria gonorrhoeae is an essential protein that mediates ion exchange between the organism and its environment and also plays multiple roles in human host pathogenesis. To facilitate structure-function studies of porin's multiple roles, we performed saturating mutagenesis at the porB locus and used deep sequencing to identify essential versus mutable residues. Random mutations in porB were generated in a plasmid vector, and mutant gene pools were transformed into N. gonorrhoeae to select for alleles that maintained bacterial viability. Deep sequencing of the input plasmid pools and the output N. gonorrhoeae genomic DNA pools identified mutations present in each, and the mutations in both pools were compared to determine which changes could be tolerated by the organism. We examined the mutability of 328 amino acids in the mature PorB protein and found that 308 of them were likely to be mutable and that 20 amino acids were likely to be nonmutable. A subset of these predictions was validated experimentally. This approach to identifying essential amino acids in a protein of interest introduces an additional application for next-generation sequencing technology and provides a template for future studies of both porin and other essential bacterial genes. PMID:24244002

Chen, Adrienne

2014-01-01

102

PRODUTIVIDADE E DESEMPENHO AGRONÔMICO DE DUAS FORRAGEIRAS PARA USO EM TRATAMENTO POR DISPOSIÇÃO NO SOLO DAS ÁGUAS RESIDUÁRIAS DA LAVAGEM E DESPOLPA DE FRUTOS DO CAFEEIRO11  

Microsoft Academic Search

RESUMO: Com o objetivo de selecionar espécies forrageiras a serem utilizadas como cobertura vegetal de rampas de tratamento de águas residuárias por escoamento superficial, foram cultivados o Azevém Comum (Lolium multiflorum) e a Aveia Preta (Avena strigosa Schreb), submetidas à fertirrigação com águas residuárias da lavagem e despolpa de frutos doa cafeeiro (ARC), numa taxa de aplicação de 250 kg

Andressa Bacchetti PINTO; Antonio Teixeira de MATOS; Danilo Costa FUKUNAGA

103

Síndrome de Munchausen por terceiro simulada como alergia alimentar múltipla: relato de caso Munchausen syndrome by proxy simulating food multiple allergy: a case report  

Microsoft Academic Search

Objetivo: Descrever um caso da síndrome de Munchau- sen simulada na forma de alergia alimentar múltipla, cujo diagnóstico pode ter sido retardado, em parte, por alguns resultados de exames subsidiários. Descrição do caso: Paciente do sexo masculino atendido aos 3,5 anos com diarréia e vômitos desde o nascimento. Anterior- mente havia recebido diagnóstico de hiperplasia nodular linfóide no íleo terminal.

Roseli Monteiro Robles; Maria Dirce Benedito; Ulysses Fagundes Neto

104

Brunet Estarelles, Pere J., y Glvez Capell, Francisco, J. (1995). Estructura urbana y movilidad: anlisis del trfico inducido por el Campus de la Universitat de les Illes  

E-print Network

Brunet Estarelles, Pere J., y Gálvez Capellá, Francisco, J. (1995). Estructura urbana y movilidad Nacional de Geografía. Salamanca. Pp: 322-325. ESTRUCTURA URBANA Y MOVILIDAD. ANALISIS DEL TRAFICO INDUCIDO). Estructura urbana y movilidad: análisis del tráfico inducido por el Campus de la Universitat de les Illes

Oro, Daniel

105

MEDIDAS ACORDADAS POR LA DEFENSORIA DE LOS DERECHOS UNIVERSITARIOS DE LA UNAM RELATIVAS A LA SUSPENSION DE LOS PROCEDIMIENTOS ACADEMICOS Y  

E-print Network

MEDIDAS ACORDADAS POR LA DEFENSORIA DE LOS DERECHOS UNIVERSITARIOS DE LA UNAM RELATIVAS A LA Derechos Universitarios Dr. Leoncio Lara Sáenz con fundamento en las disposiciones contenidas tanto en el derechos y obligaciones de los estudiantes y miembros del personal académico en lo relativo a dichos

Arroyo Rodríguez, Víctor

106

Cell Growth Defect Factor1/CHAPERONE-LIKE PROTEIN OF POR1 Plays a Role in Stabilization of Light-Dependent Protochlorophyllide Oxidoreductase in Nicotiana benthamiana and Arabidopsis[C][W  

PubMed Central

Angiosperms require light for chlorophyll biosynthesis because one reaction in the pathway, the reduction of protochlorophyllide (Pchlide) to chlorophyllide, is catalyzed by the light-dependent protochlorophyllide oxidoreductase (POR). Here, we report that Cell growth defect factor1 (Cdf1), renamed here as CHAPERONE-LIKE PROTEIN OF POR1 (CPP1), an essential protein for chloroplast development, plays a role in the regulation of POR stability and function. Cdf1/CPP1 contains a J-like domain and three transmembrane domains, is localized in the thylakoid and envelope membranes, and interacts with POR isoforms in chloroplasts. CPP1 can stabilize POR proteins with its holdase chaperone activity. CPP1 deficiency results in diminished POR protein accumulation and defective chlorophyll synthesis, leading to photobleaching and growth inhibition of plants under light conditions. CPP1 depletion also causes reduced POR accumulation in etioplasts of dark-grown plants and as a result impairs the formation of prolamellar bodies, which subsequently affects chloroplast biogenesis upon illumination. Furthermore, in cyanobacteria, the CPP1 homolog critically regulates POR accumulation and chlorophyll synthesis under high-light conditions, in which the dark-operative Pchlide oxidoreductase is repressed by its oxygen sensitivity. These findings and the ubiquitous presence of CPP1 in oxygenic photosynthetic organisms suggest the conserved nature of CPP1 function in the regulation of POR. PMID:24151298

Lee, Jae-Yong; Lee, Ho-Seok; Song, Ji-Young; Jung, Young Jun; Reinbothe, Steffen; Park, Youn-Il; Lee, Sang Yeol; Pai, Hyun-Sook

2013-01-01

107

Corynebacterium jeikeium jk0268 Constitutes for the 40 Amino Acid Long PorACj, Which Forms a Homooligomeric and Anion-Selective Cell Wall Channel  

PubMed Central

Corynebacterium jeikeium, a resident of human skin, is often associated with multidrug resistant nosocomial infections in immunodepressed patients. C. jeikeium K411 belongs to mycolic acid-containing actinomycetes, the mycolata and contains a channel-forming protein as judged from reconstitution experiments with artificial lipid bilayer experiments. The channel-forming protein was present in detergent treated cell walls and in extracts of whole cells using organic solvents. A gene coding for a 40 amino acid long polypeptide possibly responsible for the pore-forming activity was identified in the known genome of C. jeikeium by its similar chromosomal localization to known porH and porA genes of other Corynebacterium strains. The gene jk0268 was expressed in a porin deficient Corynebacterium glutamicum strain. For purification temporarily histidine-tailed or with a GST-tag at the N-terminus, the homogeneous protein caused channel-forming activity with an average conductance of 1.25 nS in 1M KCl identical to the channels formed by the detergent extracts. Zero-current membrane potential measurements of the voltage dependent channel implied selectivity for anions. This preference is according to single-channel analysis caused by some excess of cationic charges located in the channel lumen formed by oligomeric alpha-helical wheels. The channel has a suggested diameter of 1.4 nm as judged from the permeability of different sized hydrated anions using the Renkin correction factor. Surprisingly, the genome of C. jeikeium contained only one gene coding for a cell wall channel of the PorA/PorH type found in other Corynebacterium species. The possible evolutionary relationship between the heterooligomeric channels formed by certain Corynebacterium strains and the homooligomeric pore of C. jeikeium is discussed. PMID:24116064

Norouzy, Amir; Schulz, Robert; Nau, Werner M.; Kleinekathofer, Ulrich; Tauch, Andreas; Benz, Roland

2013-01-01

108

Dependence of the POR and NBOHC defects as function of the dose in hydrogen-treated and untreated KU1 glass fibers  

Microsoft Academic Search

We evaluated the performances of the hydrogen-loading technique to reduce the radiation-induced absorption in optical fibers in the visible part of the spectrum. A reduction factor as large as one order of magnitude can be obtained in high dose-rate regime. Based on a spectral deconvolution method, we showed that hydrogen preferentially interacts with NBOHC defects while the number of POR

Benoit Brichard; Alberto Fernandez Fernandez; Hans Ooms; P. Borgermans; F. Berghmans

2003-01-01

109

09/01/2006 04:29 PMRadio Beethoven -Ciencia y Saber: Descubren por qu algunos animales slo usan dos de sus cuatro aletas Page 1 of 1http://www.beethovenfm.cl/microprogramas/tecnologia/33.act  

E-print Network

09/01/2006 04:29 PMRadio Beethoven - Ciencia y Saber: Descubren por qué algunos animales sólo usan Programación Ciencia y Saber Descubren por qué algunos animales sólo usan dos de sus cuatro aletas Los

Long Jr., John H.

110

A etapa de construção, no ciclo de vida de um edifício, responde por uma parcela significativa dos impactos causados pela construção civil no ambiente, principalmente os conseqüentes às perdas de materiais e à geração de resíduos e os referentes às interferências na vizinhança da obra e nos meios físico, biótico e antrópico do local onde a construção é edificada. As perdas de materiais, quer incorporadas ao edifício, quer pela formação de entulho ou por roubo, embora aqui citadas, são abordadas no capítulo \\  

Microsoft Academic Search

É bastante grande a importância dos resíduos gerados nos canteiros de obra, tanto pela quantidade que representam - da ordem de 50% da massa total dos resíduos sólidos produzidos nas áreas urbanas - como pelos impactos que causam, principalmente ao serem levados para locais inadequados. Por isso, são tratados por uma resolução federal, a de nº 307\\/2002 do CONAMA -

CANTEIRO DE OBRAS; Francisco Ferreira Cardoso; Viviane Miranda Araujo

2002-01-01

111

Pincharse sin infectarse: estrategias para prevenir la infecci?n por el VIH y el VHC entre usuarios de drogas inyectables  

PubMed Central

Resumen Objetivo Desde principios de los noventa, en la ciudad de Nueva York se han implementado con éxito programas para reducir la incidencia del virus de la inmunodeficiencia humana (VIH) y, en menor medida, del virus de la hepatitis C (VHC). A pesar de ello, aproximadamente el 70% de los usuario de drogas inyectables (UDI) están infectados por el VHC. Queremos investigar cómo el 30% restante se las ha arreglado para no infectarse. El Staying safe (nombre original del estudio) explora los comportamientos y mecanismos que ayudan a evitar la infección por el VHC y el VIH a largo plazo. Material y métodos Hemos utilizado el concepto de «desviación positiva» aplicado en otros campos de salud pública. Estudiamos las estrategias, prácticas y tácticas de prevención de aquellos UDI que, viviendo en contextos de alta prevalencia, se mantienen sin infectar por VIH y el VHC, a pesar de haberse inyectado heroína durante años. Los resultados preliminares presentados en este artículo incluyen el análisis de las entrevistas realizadas a 25 UDI (17 doble negativos, 3 doble positivos y 5 con infección por el VHC y sin infección por el VIH). Se usaron entrevistas semiestructuradas que exploraban con detalle la historia de vida de los sujetos, incluyendo su consumo de drogas, redes sociales, contacto con instituciones, relaciones sexuales y estrategias de protección y vigilancia. Resultados La intencionalidad es importante para no infectarse, especialmente durante períodos de involución (períodos donde hay un deterioro económico y/o social que llevan al que se inyecta a situaciones de mayor riesgo). Presentamos tres dimensiones independientes de intencionalidad que conllevan comportamientos que pueden ayudar a prevenir la infección: a) evitar «el mono» (síntomas de abstención) asegurando el acceso a la droga; b) «llevarlo bien» para no convertirse en un junkie y así evitar la «muerte social» y la falta de acceso a los recursos, y c) seguir sin infectarse por el VIH (sólo un doble negativo tuvo un amplio conocimiento sobre la hepatitis C). Estas intencionalidades no son mutuamente excluyentes. La presencia de varias refuerza la puesta en práctica a diario de comportamientos que pueden ayudar al que se inyecta a mantenerse libre de infecciones durante años. Algunas prácticas que hemos identificado se implementan en grupo y se comunican de UDI a UDI, de esta manera se extienden entre algunas redes sociales de UDI. Conclusiones Los UDI que permanecen sin infectarse planean e implementan estrategias de prevención en circunstancias donde otros UDI aplican prácticas de riesgo. El mantenimiento de la no infección no es, por lo tanto, un resultado del azar, sino más bien el resultado del esfuerzo (agencia) de los UDI. Investigar y extender estas estrategias y tácticas a través de programas de prevención podría contribuir a la prevención del VIH y el VHC. PMID:21915175

MATEU-GELABERT, P.; FRIEDMAN, S.; SANDOVAL, M.

2011-01-01

112

Los índices de mortalidad por cáncer de pulmón siguen bajando y contribuyen a reducción de índices generales de muertes por cáncer; Informe Anual a la Nación tiene una sección especial de los efectos de otras enfermedades en la supervivencia de pacientes  

Cancer.gov

El Informe Anual a la Nación sobre el Estado del Cáncer (1975 a 2010), mostró un descenso más acelerado que en años anteriores de los índices de mortalidad por cáncer de pulmón. También contiene una sección especial que destaca los efectos significativos que tienen otras enfermedades en la supervivencia de pacientes con cáncer.

113

Impacto clínico de la tomografía de emisión por positrones (PET) en pacientes oncológicos y su potencial aplicación en el contexto sanitario y académico nacional  

Microsoft Academic Search

La tomografía de emisión de positrones (PET) es una técnica de medicina nuclear que tiene la\\u000d\\u000acapacidad de detectar el cáncer por medio de mecanismos basados en las alteraciones\\u000d\\u000amoleculares de los procesos neoplásicos. En esta revisión se describen las aplicaciones\\u000d\\u000aoncológicas del PET y se analiza la potencial aplicación de esta tecnología en el contexto\\u000d\\u000asanitario y académico nacional.

Omar Alonso Nuñez

2006-01-01

114

El Informe Anual a la Nación indica que las tasas de mortalidad por cáncer continúan declinando. Se observan tasas menores de cáncer en las poblaciones latinas de los Estados Unidos.  

Cancer.gov

Un informe nuevo de las principales organizaciones oncológicas de la nación informa que el riesgo de los estadounidenses de morir por cáncer continúa descendiendo, y que mantiene una tendencia que comenzó a principios de los años noventa. Preguntas y respuestas

115

Hospital/UF Nivel Cargo Inscritos Vagas Demanda Hospital de Base do Distrito Federal / DF PROGRAMAS POR REA DE SADE Enfermagem em Clnica Cirrgica 11 2 5,50  

E-print Network

Hospital/UF Nivel Cargo Inscritos Vagas Demanda Hospital de Base do Distrito Federal / DF PROGRAMAS POR ÁREA DE SA�DE Enfermagem em Clínica Cirúrgica 11 2 5,50 Hospital de Base do Distrito Federal / DF PROGRAMAS POR ÁREA DE SA�DE Enfermagem em Clínica Médica 15 2 7,50 Hospital de Base do Distrito Federal / DF

Maier, Rudolf Richard

116

El Informe Anual a la Nación indica que las tasas de mortalidad por cáncer continúan declinando: los avances en el tratamiento del cáncer varían según el tipo de cáncer  

Cancer.gov

Las organizaciones oncológicas principales de la nación informan que el riesgo de los estadounidenses de morir de cáncer sigue disminuyendo y que las tasas de casos nuevos de cáncer permanecen estables. El Informe Anual a la Nación sobre el Estado del Cáncer, de 1975 a 2002, señala que las tasas de mortalidad de cáncer que se observaron para todos los cánceres combinados disminuyeron 1,1 por ciento por año de 1993 a 2002.

117

Coupling Antibody to CNBr Sepharose 1. Dialyze purified antibody against 0.2 M NaHCO3, pH 8.9. Use SpectraPor 2 (12-14 kDal cut off)  

E-print Network

against 500 mM NaPi, pH 7.5. Use SpectraPor 2 (12-14 kDal cut off) tubing. Use twice as much dialysis tubing as needed for the dialyzed volume. This will allow enough space for expansion during dialysis. Use.9. Use SpectraPor 2 (12-14 kDal cut off) tubing and tubing clips. The volume of antibody solution should

Aris, John P.

118

La curva de rendimientos como predictor de expectativas macroeconómicas  

Microsoft Academic Search

La búsqueda de información basada en las diferentes herramientas que el mercado ha desarrollado, ha convertido a la curva de rendimientos en una de las más utilizadas. Diferentes autores a nivel internacional se han preocupado por investigar y extraer información, teniendo en cuenta la formación de expectativas de los agentes sobre las tasas de interés, el comportamiento de diferentes variables

Juan Camilo Rojas

2007-01-01

119

Por que coito interrompido? Por que não? Perspectivas masculinas  

Microsoft Academic Search

Withdrawal is an ancient and prevalent form of male contraception which has largely been ignored by family planning programme managers all over the world. The objective of this study was to understand men's perspectives on withdrawal use, both users and non-users. In-depth interviews with 62 male factory workers in western Turkey are reported, on use of withdrawal, attitudes to family

Nuriye Ortayli; Metin Ozugurlu

120

Crescimento de mudas de gipsofila em diferentes substratos  

Microsoft Academic Search

Development of young plants of gypsophila in different substrates Floriculture is one of the branches in horticulture that has expanded in the last years because of its profitability. The study and the use of substrates for producing young plants are important, once the gypsophila production depends on young plants quality. Considering that the quality of a substrate is the result

Nair Bosa; Eunice Oliveira Calvete; Vilson Antônio Klein; Marilei Suzin

2003-01-01

121

Limiar de variabilidade da freqüência cardíaca em diferentes protocolos ergométricos.  

E-print Network

??The heart rate variability (VFC) decreases gradually during progressive exercise, which tends to stabilization in intermediate loads. Initially, the possibility of identification of a threshold… (more)

Lenise Fronchetti

2008-01-01

122

Por que que as humanidades  

E-print Network

, numa reflexão sobre o país, numa capacidade de ir para além de si mesma e de se voltar para o país. �, no século XXI, não podem deixar de traduzir essa matriz, esse pensamento crítico, numa reflexão sobre os

Instituto de Sistemas e Robotica

123

Fumar cigarrillos está relacionado con la mitad de los casos de cáncer de vejiga en mujeres; estudio de los NIH confirma que el riesgo de cáncer de vejiga por fumar es mayor de lo que se calculó anteriormente  

Cancer.gov

Los fumadores actuales de cigarrillos tienen un mayor riesgo de padecer cáncer de vejiga que lo que se informó anteriormente, y ahora el riesgo de las mujeres es comparable al riesgo de los hombres, de acuerdo a un estudio llevado a cabo por científicos del Instituto Nacional del Cáncer (NCI). Aunque estudios anteriores mostraron que solo 20 a 30 % de los casos de cáncer en mujeres eran causados por fumar, estos nuevos datos indican que fumar es responsable de aproximadamente la mitad de los casos de cáncer de vejiga en la mujer.

124

Estudio de exámenes selectivos de detección de cáncer en los Estados Unidos indica que las pruebas anuales para detectar cáncer de próstata no tienen un beneficio en la mortalidad por esta enfermedad  

Cancer.gov

Un nuevo e importante informe de un estudio, diseñado para proporcionar respuestas sobre la eficacia de los exámenes de detección de cáncer de próstata, fue difundido hoy por el Estudio de Exámenes Selectivos de Detección de Cáncer de Próstata, Pulmón, Colorrectal y Ovarios (Prostate, Lung, Colorectal, and Ovarian, PLCO), e indicó que los seis exámenes de detección de cáncer de próstata que se hicieron en seis años (uno cada año) dieron como resultado más diagnósticos de la enfermedad, pero no menos muertes por cáncer de próstata.

125

IgE Reactivity of Blue Swimmer Crab (Portunus pelagicus) Tropomyosin, Por p 1, and Other Allergens; Cross-Reactivity with Black Tiger Prawn and Effects of Heating  

PubMed Central

Shellfish allergy is a major cause of food-induced anaphylaxis, but the allergens are not well characterized. This study examined the effects of heating on blue swimmer crab (Portunus pelagicus) allergens in comparison with those of black tiger prawn (Penaeus monodon) by testing reactivity with shellfish-allergic subjects' serum IgE. Cooked extracts of both species showed markedly increased IgE reactivity by ELISA and immunoblotting, and clinical relevance of IgE reactivity was confirmed by basophil activation tests. Inhibition IgE ELISA and immunoblotting demonstrated cross-reactivity between the crab and prawn extracts, predominantly due to tropomyosin, but crab-specific IgE-reactivity was also observed. The major blue swimmer crab allergen tropomyosin, Por p 1, was cloned and sequenced, showing strong homology with tropomyosin of other crustacean species but also sequence variation within known and predicted linear IgE epitopes. These findings will advance more reliable diagnosis and management of potentially severe food allergy due to crustaceans. PMID:23840718

Varese, Nirupama; Zubrinich, Celia; Lopata, Andreas L.; O'Hehir, Robyn E.; Rolland, Jennifer M.

2013-01-01

126

Una cinta transportadora de longitud l se mueve con velocidad v respecto al suelo. Por su extremo derecho se introduce un bloque de masa m que se mover en contra de la cinta  

E-print Network

Problema 2 Una cinta transportadora de longitud l se mueve con velocidad v respecto al suelo. Por). Determine la velocidad vo (respecto al suelo) con la cual es necesario impulsar el bloque contra el, y que ahí se detenga respecto al suelo. En tal punto, con el bloque en reposo respecto al suelo

Chang, Mark J. L.

127

Estudios de la Zona No Saturada del Suelo Vol. VI. J. lvarez-Bened y P. Marinero, 2003 ELIMINACIN DE NITRATOS POR DESNITRIFICACIN EN LA ZONA NO SATURADA DEL SUELO EN  

E-print Network

Estudios de la Zona No Saturada del Suelo Vol. VI. J. Álvarez-Benedí y P. Marinero, 2003 385 ELIMINACI�N DE NITRATOS POR DESNITRIFICACI�N EN LA ZONA NO SATURADA DEL SUELO EN UN HUMEDAL DEL CINTUR�N PERI-Euskal Herriko Unibertsitatea, 48940 Leioa (Bizkaia), gopanaui@lg.ehu.es. RESUMEN. Los cambios de usos del suelo

Chave, Jérôme

128

XXIII CONGRESO LATINOAMERICANO DE HIDRÁULICA CARTAGENA DE INDIAS COLOMBIA, SEPTIEMBRE 2008 EVALUACION DE LA RESUSPENSIÓN POR EFECTO DE UNA CORRIENTE DE DENSISDAD EN UN EMBALSE. APLICACIÓN AL CASO DEL EMABALSE DE FLIX-ESPAÑA  

Microsoft Academic Search

RESUMEN: En este artículo se estudia la capacidad de las corrientes de densidad, formadas por diferencia de temperatura, para resuspender el sedimento en el fondo de un embalse. El estudio se enmarca dentro de un suceso de contaminación que se produjo en el embalse de Flix en 2001, en el que murieron varios miles de peces y se vio afectada

Albert Herrero Casas; Vicente Medina Iglesias; Allen Bateman Pinzón

129

Informe a la Nación indica que el índice de mortalidad por cáncer sigue bajando; la sección especial destaca las tendencias de los cánceres asociados con el VPH y los grados de cobertura de vacunación contra el VPH.  

Cancer.gov

El Informe Anual a la Nación sobre el Estado del Cáncer, de 1975 a 2009, indica que los índices generales de mortalidad por cáncer siguen bajando en los Estados Unidos en hombres y mujeres, entre todos los grupos raciales y étnicos principales y para todos los sitios más comunes de cáncer, como pulmón, colon y recto, seno femenino y próstata.

130

Informe Anual a la Nación indica una reducción en los índices de incidencia y mortalidad por cáncer; una sección especial revela amplias variaciones en las tendencias del cáncer de pulmón en los estados  

Cancer.gov

Un nuevo informe de las principales organizaciones oncológicas del país muestra que, por primera vez desde la primera publicación del informe en 1998, tanto el índice de incidencia como el de mortalidad para todos los cánceres combinados están disminuyendo en hombres y mujeres.

131

PERFIL DOS ACIDENTES POR LIQUIDOS AQUECIDOS EM CRIANÇAS ATENDIDAS EM CENTRO DE REFERÊNCIA DE FORTALEZA The Profile of Accidents by Hot Liquids in Children Attended at a Reference Center in Fortaleza  

Microsoft Academic Search

RESUMO As queimaduras são acidentes frequentes e representam a segunda causa de morte na infância. Este trabalho objetivou identificar o perfil dos acidentes em crianças queimadas por líquidos aquecidos. Estudo descritivo, realizado com 62 pais de crianças internadas em um Centro de Tratamento para Queimados, em Fortaleza, Ceará, no período de janeiro a junho de 2002. As variáveis estudadas foram:

Rita Neuma; Dantas Cavalcante; Érika Porto Xavier; Luiza Jane; Eyre de Souza

132

Psicología de las mujeres y de género. Pasado, presente y futuro. Notas de un seminario impartido por Rhoda Unger Women and Gender Psychology. Past, present and future. Notes on a seminar  

Microsoft Academic Search

Este trabajo está compuesto por una serie de notas que recopiló quien esto escribe en el seminario que recientemente impartió Rhoda Unger en el doctorado de Psicología Social de la UAB. Se trata de cinco conferencias que abordaban la historia de la psicología feminista, y de la psicología en general, en Estados Unidos. Al tiempo que ofrecían un panorama de

Rhoda Unger

2007-01-01

133

Impact of the CYP3A5, CYP3A4, COMT, IL-10 and POR genetic polymorphisms on tacrolimus metabolism in Chinese renal transplant recipients.  

PubMed

Tacrolimus is a widely used immunosuppressive drug for preventing the rejection of solid organ transplants. The efficacy of tacrolimus shows considerable variability, which might be related to genetic variation among recipients. We conducted a retrospective study of 240 Chinese renal transplant recipients receiving tacrolimus as immunosuppressive drug. The retrospective data of all patients were collected for 40 days after transplantation. Seventeen SNPs of CYP3A5, CYP3A4, COMT, IL-10 and POR were identified by the SNaPshot assay. Tacrolimus blood concentrations were obtained on days 1-3, days 6-8 and days 12-14 after transplantation, as well as during the period of the predefined therapeutic concentration range. Kruskal-Wallis test was used to examine the effect of genetic variation on the tacrolimus concentration/dose ratio (C 0/D) at different time points. Chi-square test was used to compare the proportions of patients who achieved the target C 0 range in the different genotypic groups at weeks 1, 2, 3 and 4 after transplantation. After correction for multiple testing, there was a significant association of C 0/D with CYP3A5*3, CYP3A4*1G and CYP3A4 rs4646437 T>C at different time points after transplantation. The proportion of patients in the IL-10 rs1800871-TT group who achieved the target C 0 range was greater (p?=?0.004) compared to the IL-10 rs1800871-CT and IL-10 rs1800871-CC groups at week 3 after transplantation. CYP3A5*3, CYP3A4 *1G, CYP3A4 rs4646437 T>C and IL-10 rs1800871 C>T might be potential polymorphisms affecting the interindividual variability in tacrolimus metabolism among Chinese renal transplant recipients. PMID:24465960

Li, Chuan-Jiang; Li, Liang; Lin, Li; Jiang, Hai-Xia; Zhong, Ze-Yan; Li, Wei-Mo; Zhang, Yan-Jun; Zheng, Ping; Tan, Xu-Hui; Zhou, Lin

2014-01-01

134

Incidencia de infecciones del torrente sanguíneo por Staphylococcus aureus en pacientes críticamente enfermos en unidades de cuidado intensivo en Colombia 2004-2008 / Incidence bloodstream infection by Staphylococcus aureus in critically ill patients intensive care unit in Colombia 2004-2008.  

E-print Network

??Contreras Villamizar, Kateir Mariel (2010) Incidencia de infecciones del torrente sanguíneo por Staphylococcus aureus en pacientes críticamente enfermos en unidades de cuidado intensivo en Colombia… (more)

Contreras Villamizar, Kateir Mariel

2010-01-01

135

Long-term RNA persistence of Porcine rubulavirus (PorPV-LPMV) after an outbreak of a natural infection: the detection of viral mRNA in sentinel pigs suggests viral transmission.  

PubMed

The persistence of porcine rubulavirus (PorPV-LPMV) in five pigs that had survived an outbreak of a natural infection was determined. After the resolution of the outbreak, each animal was housed in an isolation pen together with one sentinel pig. Approximately every 2 months thereafter one group of animals was euthanized and tissue samples taken for virological and serological analysis. Infectious virus was not isolated from any samples; antibodies to PorPV-LPMV were detected in convalescent pigs by virus neutralisation test and blocking ELISA but not in sentinel pigs. PorPV-LPMV mRNA of the nucleoprotein (NP) and phosphoprotein (P) genes was detected by a nested polymerase chain reaction (nPCR) in samples of trigeminal and optic nerves, cervical spinal cord, tonsils, salivary gland, lung and pancreas from convalescent pigs. mRNA was also detected in the midbrain, corpus callosum, or olfactory bulb in four out of five pigs by nRT-PCR, this result was confirmed by the sequencing of a 260bp PCR product of P gene region. The highest average viral copies/?g of total RNA occurred in the olfactory bulb and pancreas tissues of convalescent pigs and midbrain, tonsil and pancreas of sentinel pigs housed with the convalescent pigs. Satellitosis and gliosis of the midbrain, olfactory bulb, corpus callosum, medulla oblongata or choroid plexus were microscopically observed in four convalescent pigs. The control pig remained negative in all tests. The results indicate that PorPV-LPMV mRNA persists and induces a durable humoral immune response in pigs that have recovered from a natural infection. After a possible reactivation of the virus, it was transmitted to sentinel pigs in contact with the convalescent pigs. PMID:24768705

Cuevas-Romero, S; Hernández-Baumgarten, E; Kennedy, S; Hernández-Jáuregui, P; Berg, M; Moreno-López, J

2014-08-01

136

De conformidad con la Ley de Derechos Humanos de 1977 del Distrito de Columbia, segn enmendada, Cdigo Oficial del Distrito de Columbia, Seccin 2-1401.01 et seq., (Ley), el Distrito de Columbia no discrimina, de forma visible ni percibida, por  

E-print Network

De conformidad con la Ley de Derechos Humanos de 1977 del Distrito de Columbia, según enmendada la ausencia, el empleado no perderá ninguno de sus beneficios de empleo, ni tampoco los derechos por las estipuladas por la Ley. LAS QUEJAS CON RESPECTO A ALGUNA DENEGACI�N DE LOS DERECHOS EN VIRTUD DE

Weaver, Harold A. "Hal"

137

Protection by Meningococcal Outer Membrane Protein PorA-Specific Antibodies and a Serogroup B Capsular Polysaccharide-Specific Antibody in Complement-Sufficient and C6-Deficient Infant Rats  

PubMed Central

The relative contributions of antibody-induced complement-mediated bacterial lysis and antibody/complement-mediated phagocytosis to host immunity against meningococcal infections are currently unclear. Further, the in vivo effector functions of antibodies may vary depending on their specificity and Fc heavy-chain isotype. In this study, a mouse immunoglobulin G2a (mIgG2a) monoclonal antibody (MN12H2) to meningococcal outer membrane protein PorA (P1.16), its human IgG subclass derivatives (hIgG1 to hIgG4), and an mIgG2a monoclonal antibody (Nmb735) to serogroup B capsular polysaccharide (B-PS) were evaluated for passive protection against meningococcal serogroup B strain 44/76-SL (B:15:P1.7,16) in an infant rat infection model. Complement component C6-deficient (PVG/c?) rats were used to assess the importance of complement-mediated bacterial lysis for protection. The PorA-specific parental mIgG2a and the hIgG1 to hIgG3 derivatives all induced efficient bactericidal activity in vitro in the presence of human or infant rat complement and augmented bacterial clearance in complement-sufficient HsdBrlHan:WIST rats, while the hIgG4 was unable to do so. In C6-deficient PVG/c? rats, lacking complement-mediated bacterial lysis, the augmentation of bacterial clearance by PorA-specific mIgG2a and hIgG1 antibodies was impaired compared to that in the syngeneic complement-sufficient PVG/c+ rat strain. This was in contrast to the case for B-PS-specific mIgG2a, which conferred similar protective activity in both rat strains. These data suggest that while anti-B-PS antibody can provide protection in the infant rats without membrane attack complex formation, the protection afforded by anti-PorA antibody is more dependent on the activation of the whole complement pathway and subsequent bacterial lysis. PMID:16622217

Toropainen, Maija; Saarinen, Leena; Vidarsson, Gestur; Kayhty, Helena

2006-01-01

138

Informe a la nación indica que continúa la disminución de las tasas de mortalidad por cáncer que empezó a principios de los noventa; Una sección especial destaca los cánceres asociados al exceso de peso y a la falta de actividad física adecuada  

Cancer.gov

Los índices de mortalidad por todos los cánceres combinados para hombres, mujeres y niños siguieron bajando en Estados Unidos entre 2004 y 2008, según el Informe Anual a la Nación sobre el Estado del Cáncer de 1975 a 2008. El índice general de diagnósticos nuevos de cáncer, que se conoce también como incidencia, bajaron entre los hombres un promedio de 0,6% por año entre 2004 y 2008. Los índices generales de incidencia de cáncer entre las mujeres bajaron 0,5% por año de 1998 hasta 2006; estos índices se nivelaron de 2006 a 2008.

139

Diseño de calendarios para transporte de componentes de automóviles. Soluciones heurísticas  

Microsoft Academic Search

En este trabajo se analiza un caso particular del Periodic Vehicle Routing Problem, (PVRP), planteado recientemente a los autores de este trabajo por los directivos de una empresa logística. Una empresa fabricante de componentes de automóviles recoge diferentes piezas, que utiliza como materias primas, en diferentes factorías distribuidas geográficamente. Las recogidas de estas piezas deben seguir determinadas periodicidades. Se trata

JESÚS F. ALEGRE; SILVIA CASADO; CRISTINA R. DELGADO

2002-01-01

140

AS AREIAS COLORIDAS E O LABIRINTO DAS FALÉSIAS: O TURISMO COMO FATOR DE TRANSFORMAÇÃO DAS PAISAGENS NAS PRAIAS DE MORRO BRANCO E DAS FONTES NO MUNICÍPIO DE BEBERIBE-CEARÁ  

Microsoft Academic Search

RESUMO O litoral brasileiro atrai muitas pessoas para o cenário de suas praias, a fim de se realizarem passeios e diferentes atividades turísticas. O turismo cearense se destaca por ser desenvolvido principalmente na costa cearense, em seus 573 Km de extensão. O município de Beberibe com um litoral de aproximadamente 52 km possui diferentes paisagens naturais favoráveis ao desenvolvimento do

Juliana Maria Oliveira Silva

2004-01-01

141

AGRUPACIONES HUMANAS ATENDIENDO A SU ESTRUCTURA ORGANIZATIVA  

Microsoft Academic Search

La agrupación humana como categoría ha sido definida por innumerables estudiosos. En las diferentes definiciones se ha hecho referencia a las características de las distintas agrupaciones humanas y se han clasificado atendiendo a diferentes criterios. Actualmente, atendiendo a la estructura organizativa y al sentido de pertenencia de sus miembros, existen tres formas de agruparse los seres humanos: los colectivos humanos,

Diosveldy Navarro Lores

2012-01-01

142

Miopía y estrías retinianas por topiramato  

Microsoft Academic Search

Clinical caseA 23-year-old woman who was seen due to decreasing far visual acuity 24hours after starting treatment with topiramate. In the cycloplegic refraction, RE showed -4.25 and LE -4.50. Retinal striae could be seen in the macula of both eyes. The alterations ceased 48hours after the drug treatment was interrupted.

E. Dorronzoro; E. Santos-Bueso; E. Vico-Ruiz; F. Sáenz-Frances; J. Argaya; J. A. Gegúndez-Fernández

2011-01-01

143

NORMAS GERAIS PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

, do qual conste: A forma de ingresso (vestibular, ENEM, transferência externa, concurso de títulos ou do exame de seleção. Se for ENEM basta esta informação e o ano da realização do exame. Relação das

144

DOCUMENTAO PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

conste: A forma de ingresso / processo seletivo (vestibular, ENEM, transferência externa, concurso de realização do exame de seleção. Se for ENEM basta entregar o documento do INEP com a data da realização do

145

DOCUMENTAO PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

ingresso / processo seletivo (vestibular, ENEM, transferência externa, concurso de títulos ou outro). Mês seleção. Se for ENEM basta esta informação e o ano da realização do ENEM. Relação das disciplinas

146

NORMAS GERAIS PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

, do qual conste: A forma de ingresso / processo seletivo (vestibular, ENEM, transferência externa da realização do exame de seleção. Se for ENEM basta esta informação e o ano da realização do ENEM

147

Reacciones cutáneas adversas por tatuajes y piercings  

Microsoft Academic Search

Piercings and tattoos have become very popular in western society in recent decades, particularly among younger generations. Reports of medical complications associated with these decorative techniques have increased in parallel with the rise in their popularity. Due to their high frequency, adverse cutaneous reactions are particularly important among these potential complications.Tattoo-related complications include a number of cutaneous and systemic infections

J. Mataix; J. F. Silvestre

2009-01-01

148

La violencia latinoamericana vista por los economistas  

Microsoft Academic Search

Este artículo sintetiza los estudios económicos publicados recientemente sobre la violencia en América Latina y analiza las causas susceptibles de acrecentarla: pobreza, desigualdad de los ingresos en nivel y variación, impunidad, diferencia entre la probabilidad de ser arrestado y la severidad de la pena impuesta, y narcotráfico. Sin embargo, la explicación de la violencia no se limitará a factores económicos,

Pierre Salama

2003-01-01

149

S?ndrome del Outlet Tor?cico: ?Una Patolog?a Siempre Quir?rgica? An?lisis de una Serie de 31 Cirug?as Realizadas por V?a Supraclavicular Serie cl?nica  

PubMed Central

Introducción: El síndrome de outlet torácico es una compresión del plexo braquial que suscita polémica. Se clasifica en Outlet Torácico Verdadero o neurogénico (OTV) y Outlet Torácico Disputado o no neurogénico (OTD). El primero presenta síntomas motores en la mano, mientras que el segundo sólo síntomas sensitivos en el miembro superior. El objetivo de este trabajo es analizar los resultados obtenidos en una serie de 31 cirugías. Métodos: Se analizaron las cirugías de nervios efectuadas entre 2003-2012, tomando los diagnósticos de outlet torácico cuyo período de seguimiento post-operatorio mínimo fuera de 6 meses. Se buscaron los siguientes datos: edad, sexo, presencia de síntomas sensitivos y/o motores, clasificación, resultado de los estudios neurofisiológicos y de imágenes, resultado de la cirugía, complicaciones post-operatorias y recidivas. Resultados: Se incluyeron 31 cirugías realizadas en 30 pacientes, 9 OTV (8 mujeres) de 24.3 años, y 21 con OTD (18 mujeres) de 37.4 años de edad en promedio. Un 90% presentaron alteraciones neurofisiológicas preoperatorias, y 66,6% imagenológicas. En el intraoperatorio, el 100% de los OTV presentó una alteración anatómica relacionada con la sintomatología, hecho observado sólo en el 36.7% de los OTD operados. El 87,5% de los OTV mejoraron sensitivamente, mientras que 77,7% mejoraron la atrofia. Por el contrario, 45.4% de los OTD mejoraron permanentemente, 36.3% no tuvieron cambios, 13.6% mejoraron transitoriamente y 4.5% (un caso) empeoró. Las complicaciones post-operatorias fueron más frecuentes aunque transitorias en el grupo de OTV (3 casos sobre 9 operados, 33.3%) que en los OTD (3 casos sobre 22, un 13.6%). Conclusión: El OTV suele mayormente mejorar luego de la cirugía, igual que el OTD aunque en una proporción mucho menor. Estos hallazgos coinciden con otros reportes recientes de esta patología. PMID:25165614

Socolovsky, Mariano; Di Masi, Gilda; Binaghi, Daniela; Campero, Alvaro; Paez, Miguel Dominguez; Dubrovsky, Alberto

2014-01-01

150

Comparação entre modelos digitais de elevação gerados por sensores ópticos e por radar  

Microsoft Academic Search

The aim of this paper is to compare the quality and accuracy of Digital Elevation Models (DEM) generated from different sources. Three different DEMs, covering the same geographic area (region of Uberaba, MG), are tentatively evaluated in this work. The first is a DEM derived from radar interferometry, through the Shuttle Radar Topographic Mission (SRTM). The other two are DEMs

Lucas de Melo Melgaço; Roberto de Souza; Michael Steinmayer; Caixa Postal; R. Felipe Neri

2005-01-01

151

EFEITOS DE DIFERENTES NÍVEIS DE ENCHARCAMENTO DO SOLO SOBRE O CRESCIMENTO DO ALGODOEIRO HERBÁCEO - PARTE 1  

Microsoft Academic Search

PART 1 ABSTRACT - The cotton-plant (Gossypium hirsutum L) depending on its stadium and duration of the water logging is sensible to low levels of oxygen in the soil showing reduction in the productive potential of the crop. On the other hand, this characteristic can be dependent on the cultivar. The purpose of the work was to evaluate the effects

Maria Isabel de Lima; Wilton Nunes de Queiroz

152

Efeitos da Kinesio Taping no desempenho neuromuscular durante exercício resistido com diferentes velocidades.  

E-print Network

??Dissertação (mestrado)—Universidade de Brasília, Faculdade de Educação Física, Programa de Pós-Graduação Strictu-Sensu em Educação Física, 2013. OBJETIVOS: Analisar os efeitos imediatos e após 24 horas… (more)

Guedes, Rogério Avelar

2013-01-01

153

A INFLUÊNCIA DE AGREGADOS GRAÚDOS DE DIFERENTES MINERALOGIAS NAS PROPRIEDADES MECÂNICAS DO CONCRETO DE ALTO DESEMPENHO  

Microsoft Academic Search

Concrete in normal conditions is a versatile and strong construction material. However under certain environmental conditions it may deteriorate in a short period of time. This fact has led researchers in recent times to develop the high-performance concrete. In this scenario, the aim of this paper is to present the effects of the different types of coarse aggregate on the

A. G. Magalhães; E. P. de França; M. T. P. Aguilar; J. M. Calixto; W. L. Vasconcelos

154

Deterioro atmosférico del concreto en ambientes urbanos colombianos de diferente agresividad  

Microsoft Academic Search

The concrete behavior in service depends on the atmospheric conditions where it is exposed. The determination of the atmosphere effect in sta- bility of a given material depends on several factors related with time of wetness and atmospheric pollution. In Colombia, a few studies about this subject had been performed. In this study, cylindrical specimens of mortars, reinforced and non-reinforced,

Esteban A. Correa; Rubiela M. Montoya; Sergio L. Peñaranda; Juan G. Castaño

2008-01-01

155

Biodigestão anaeróbia de dejetos de bovinos leiteiros submetidos a diferentes tempos de retenção hidráulica  

Microsoft Academic Search

Continuous biodigestors filled with dairy cattle manure and operated at different hydraulic retention times, were used to determine the number of coliforms and the presence of helmints eggs and parasite larvae of ruminants and to analyze the total and volatile solid contents and the production and quality of the biogas produced. Twenty days of the retention time were sufficient to

Cecília Maria Costa do Amaral; Luiz Augusto do Amaral; Jorge de Lucas Júnior; Adjair Antônio do Nascimento; Daniel de Souza Ferreira; Márcia Rita Fernandes Machado

2004-01-01

156

Avaliação da Perda Endógena de Aminoácidos, em Função de Diferentes Níveis de Fibra para Suínos1  

Microsoft Academic Search

The experiment was carried out with the objective of evaluating the ileal endogenous losses of amino acids in function of different fiber levels inclusion in a free protein diet. Were used eight crossbreed swine, castrated males, averaging 50.17 ± 4.10 kg initial weight, submitted previously to the simple T canula surgery implantation, allotted to a randomized blocks design, with four

Paulo Cesar Pozza; Paulo Cezar Gomes; Horacio Santiago Rostago; Juarez Lopes Donzele; Magali Soares dos Santos; Rony Antônio Ferreira

157

Cultivo do Agrião em Hidroponia, Sob Diferentes Concentrações de Solução Nutritiva em Sistema NFT  

Microsoft Academic Search

Hydroponics cultivation of water-cress in different nutritious solution concentrations, for NFT system The research aim was assess the different nutritious solution concentrations for hydroponics cultivation tof water-cress in NFT system. For experimental outline was used the entirely casual standard, in a subdividide allotment scheme, that is: the nutritious solution concentrations are allotments (I-50%, II - 75%, III - 100%, IV

Mariluce Borges Precioso; José Magno Queiroz Luz; Lenita Lima Haber; Monalisa Alves; Diniz da Silva

158

Produção hidropônica de alface (Lactuca sativa), do tipo Mimosa, em diferentes concentrações de solução nutritiva  

Microsoft Academic Search

Hidroponic Production of lettuce (Lactuca sativa), Mimosa type, in different concentrations of nutritive solution. This experiment tried to show the development of the specie lettuce ( Lactuca sativa ) , Mimosa type, under different concentrations of nutritive solution proposed by Furlani et al (1999) in NFT hidroponic system cultivation, verifing a possible influence of plant's positions in the cultivation canals

Natália Simarro Fagundes; José Magno Queiroz Luz; Vinícius Borges dos Santos; Ana Carolina; Borges Sodré; Pedro Augusto de Araújo

1999-01-01

159

Produção de frutos e estolhos do morangueiro em diferentes sistemas de cultivo em ambiente protegido  

Microsoft Academic Search

FRUIT AND RUNNER TIPS PRODUCTION OF STRAWBERRY PLANTS GROWN ON DIFFERENT CROPPING SYSTEMS UNDER PROTECTED CULTIVATION The objective of this work was to compare the strawberry (Fragaria x ananassa Duch.) fruit and runner tips production in function of three types of cropping systems (conventional soil, NFT hydroponics, and vertical bags with carbonized rice straw as substrate) under protected cultivation. The

Flavio Fernandes-Júnior; Pedro Roberto Furlani; Ivan José Antunes Ribeiro; Cassia Regina Limonta Carvalho

2002-01-01

160

Nota Tecnica GERMINACION Y DESARROLLO RADICULAR DE TEMPISQUE (Sideroxylon capiri) A DIFERENTES TEMPERATURASI  

Microsoft Academic Search

Se evalu6 el efecto de varias temperaturas Germination and root development of (15,20,26,30, 35, 40°C) sobre la germinaci6n y tempisque (Sideroxylon capiri) at different crecimiento radicular de plantulas a partir de se- temperatures. The effect of various temperatu- millas recien cafdas de 5 arboles de tempisque res (15, 20, 26, 30, 35, 40°C) on the germination (Sideroxylon capiri), ubicados en

Jose Francisco Di Stejano; Elmer Garc

2000-01-01

161

ANÁLISIS COMPARATIVO DE LA ALIMENTACIÓN DEL GATO MONTÉS (LYNX RUFUS) EN DOS DIFERENTES AMBIENTES DE MÉXICO  

Microsoft Academic Search

Feeding habits of the bobcat (Lynx rufus) in two different localities of Mexico were studied by the analysis of 197 and 922 scats. Lagomorphs, and rodents were the more important prey items in both places. At El Plomito, state of Sonora, we found 18 different prey species, and the most important were Sylvilagus audubonii (35.5%), Lepus sp. (31.5%), Neotoma albigula

Marcelo ARANDA; Octavio ROSAS; Francisco I. Madero

2002-01-01

162

Estudio comparativo entre diferentes productos igualadores en la tintura de la lana  

Microsoft Academic Search

Dans cet étude, on effectue une comparaison du pouvoir égalisateur racine-pointe de plusieurs produits auxiliaires du type commercial ainsi que de la bétaine C12, en utilisant des colorants foulon, prémétallisés 1:2 et réactifs.\\u000aEn général, les produits auxiliaires augmentant l'absortion, produisent un meilleur effet égalisateur qui dépend du type et de la concentration du colorant, ainsi que de la concentration

José Cegarra Sánchez; Ascensión Riva Juan

1970-01-01

163

DESENVOLVIMENTO DO RABANETE RAPHANUS SATIVUS L. SUBMETIDO A DIFERENTES PULVERIZAÇÕES COM SOLUÇÕES HOMEOPÁTICAS  

Microsoft Academic Search

The rational agriculture focus is beyond natural resources preservation of our planet, the alternative products use which minimize decades of impacts created by mankind. The agrocology, agriculture model which its philosophy concepts a clean, healthy agriculture is still in need of researchers to solve problems that deal with several agricultures. Less toxic products based on non-polluting substances would be accepted

Fabrizio Carbone Romano; Maria do Carmo Arenales; Ricieri Zerbatto; Juliana Neves; Sueli Reis Bonturi; Celso Camilo Ribeiro; Marcos Felipe Poptiz; Maria do Carmo

164

Efeitos cardiorrespiratório, analgésico, sedativo e neuroendócrino de diferentes doses de tramadol em cães.  

E-print Network

??This double-blind study compared the cardiorespiratory, analgesic, sedative and neuroendocrine effects of different doses of tramadol administered intravenously (iv) in bitches, submitted to ovariohisterectomy. The… (more)

Rodrigo Jesus Paolozzi

2009-01-01

165

Diferentes etiologías de las válvulas aórticas bicúspides: implicaciones genéticas, patológicas, clínicas y quirúrgicas  

Microsoft Academic Search

It has recently been shown that bicuspid aortic valves with different spatial orientation of the leaflets (cusps) are etiologically distinct. This finding has led to reconsidering several of the current concepts on the genetics of these anomalous valves, on their association with other hereditary cardiac malformations, their clinical complications and on the possible surgical decisions to make with regard to

Borja Fernández; Josep Maria Arqué; Ana Carmen Durán; Miguel Such; Valentín Sans-Coma

2010-01-01

166

Composição química e valores energéticos de fontes protéicas em codornas de corte em diferentes idades  

Microsoft Academic Search

Four proteic feeds chemical composition were evaluated, as well as the age effect in meat quails on the values of apparent metabolizable energy (AME) and the apparent corrected by the nitrogen balance (AMEn). The feeds tested were poultry by-product meal, feather meal, poultry by-product meal and feather meal and soybean meal, which have substituted 30% of the reference diet. It

Alda Letícia da Silva Santos; Augusto Vidal da Costa Gomes; Marcus Ferreira Pessôa; Samara Mostafá; Alexandre Herculano Borges de Araújo; Antônio Assis Vieira

2006-01-01

167

Diferentes instrumentos para adecuar la demanda de la tomografía computarizada y la resonancia magnética  

Microsoft Academic Search

Diagnostic tests are a very important element in ensuring the quality of health care provided as they make, essential on occasions, a contribution to the improvement of diagnostic accuracy, and with this, therapeutic decisions. Technological development, the increased possibilities of diagnostic tests, and the growing demand for those by society means that equipment, and therefore, the number of studies carried

Isabel Rodrigo

2008-01-01

168

Módulo de entrenamiento de equipos médicos utilizando simuladores por software  

Microsoft Academic Search

Resumen —En las últimas décadas se han suscitado marcados avances en la tecnología hospitalaria, es to llevo al desarrollo de equipamientos médicos cada vez más exactos, seguros e indiscutiblemente más complejos. El marcado aumento en las capacidades de los nuevos equipamientos no fue acompañado en la misma medida en la capacitación de los profesionales usuarios de los mismos. Todo esto

Santiago Romero Ayala; Priscila Avelar; Renato Garcia Ojeda

169

Crioterapia en pacientes intervenidos quirúrgicamente por artroscopia de rodilla  

Microsoft Academic Search

Pain and swelling are common complications of knee arthros- copy, which may lead to inhibition of the extensor mechanism and ultimately a delay in rehabilitation. Cryotherapy has been used for many years, following knee surgery, as a treatment for decreasing knee swelling and pain. However, there is little evi- dence in the medical literature of the beneficial effects that sup-

Sergio Abush T; Sandra Ciklik P

170

[The right to avoid pregnancy] [POR, ENG translation included].  

PubMed

Signs are finally appearing in Brazil that despite the government's hesitations and the hostility of the Catholic Church the decade of the 1980s shall bring effective changes intended to restrain population growth. Now, 4 years after its inclusion in the social program of the Geisel administration in 1977, family planning will become a reality. It is certainly about time, for at the present rate of growth the Brazilian population increases by about 6 persons per minute--about 3 million a year. At this pace, only a large scale State intervention that provides the population with information, assistance and free access to contraception may decisively reverse the trend. Figueiredo's government has decided that family planning should be introduced slowly, gradually and subtly, thus avoiding specific programs and publicity campaigns through the mass communication vehicles. In an effort to get around sharper criticism from the Church and the opposition, the government intends to mobilize catholic laypersons, priests, and nuns and, if possible, bishops in a national attempt to disseminate information on natural methods of birth control. As a 1st step, the Ministry of Health will widely distribute information on human reproduction and fecundity along with explanations of artificial contraceptive methods. Subject to the couple's decision and under medical indications, the free supply of contraceptive means to low income families shall be ensured by the government. The government will also allow sterilization. Despite its cautious approach, in actuality the government's program will in many places and circumstances be a massive inducement to contraceptive use. PMID:12337558

1981-01-21

171

Hipertensión arterial pulmonar: un recorrido por el año 2008  

Microsoft Academic Search

There have been spectacular developments in pulmonary arterial hypertension (PAH), both in its treatment and knowledge of its pathogenesis. Several studies have been published throughout 2008 that have contributed to improve these two aspects a little. As regards the pathogenesis, mutations in BMPR2 continue gaining points as fundamental factors in the development of the disease. It has been shown that

Adolfo Baloira

2009-01-01

172

VMASCINNOVATION reseArch rePOrT 2012 . 2013  

E-print Network

time Evacuation Planning Model 's VMASC has successfully focused on developing a very progressive pathway into the future of modeling constructive solutions to critical challenges facing academic, government, and industry partners, and fosters

173

INFECCIÓN POR VIH Y SUS IMPLICACIONES EN ENFERMEDADES  

Microsoft Academic Search

Introduction: In 1980 AIDS appeared in the USA in the homosexual community. Characteristics of the virus: a particle of HIV is formed by two identical RNA chains that are packed within a center of viral proteins, and surrounded by double layer of fosfolipids derived from the cellular membrane of the host. Clinical symptoms: It starts with a severe infection, evolving

PATRICIA MONTERO MORA; OLGA ADRIANA TINAJERO; CASTAÑEDA MARÍA DEL CARMEN GONZÁLEZ; PÉREZ GUILLERMO; ARTURO GUIDOS; FRANCISCO SUÁREZ NÚÑEZ

174

Elementos de um laboratório virtual de Física controlados por Wiimote  

Microsoft Academic Search

This paper presents the development of a Physics learning environment in which the Nintendo Wii Remote controller is used not only to select an object via pointing and to track an object’s motion, but also to move experiment objects and measuring instruments. Its rumble feature is explored in our project to provide appropriate haptic feedback.

Roberto Scalco

2012-01-01

175

Involución de la condición física por el envejecimiento  

Microsoft Academic Search

The elderly population is increasing in Spain. The aging process is associated with gradual declines in physical fitness and functional ability. These facts can lead to serious public health problems with the appearance of degenerative diseases and the resulting economic cost for their treatment. There is a lost of strength, a not constant decrease of VO2max and a progressive but

Ana Carbonell Baeza; Virginia Aparicio García-Molina; Manuel Delgado Fernández

2009-01-01

176

Organizado por el Departamento de Ciencias de la Comunicacin II  

E-print Network

y política. El desarrollo de estos campos abre nuevas posibilidades profesionales, creando necesida Calvo Roy. MI�RCOLES 17 DE ABRIL: Taller V. Elaboración reportaje sobre el Consejo de Seguridad Nuclear

Rey Juan Carlos, Universidad

177

Daño renal agudo por sulfadiacina en paciente con toxoplasmosis oftálmica  

Microsoft Academic Search

A patient on treatment with sulfadiazine plus pyrimethamine for ophthalmic toxoplasmosis developed renal failure. Using a microscope it is possible to see the characteristic wheat sheaf images of the sulfadiazine crystals.

Susana García de Cruz; Olaia Cores Calvo; Ángel Campos Bueno; Cristina Peña Busto

2011-01-01

178

Organizado por el Departamento de Ciencias de la Comunicacin II  

E-print Network

, como económica y política. El desarrollo de estos campos abre nuevas posibilidades profesionales Comunicación II. Clara Navío, presidenta de APIA. Anotino Calvo Roy, presidente de la AECC. Pablo Francescutti

Rey Juan Carlos, Universidad

179

Consulta por Classificao / rea Avaliao STATUSESTRATOTTULOISSN REA DE AVALIAO  

E-print Network

-2863 Journal of Nutritional Biochemistry A1 NUTRIÃ?Ã?O Atualizado 0002-8223 Journal of the American Dietetic and Science in Sports and Exercise A1 NUTRIÃ?Ã?O Atualizado 1756-5901 Metallomics (Print) A1 NUTRIÃ?Ã?O Atualizado Atualizado 0091-3057 Pharmacology, Biochemistry and Behavior A1 NUTRIÃ?Ã?O Atualizad

Floeter, Sergio Ricardo

180

Estudio vascular renal por tomografía computada multidetector de 64 canales  

Microsoft Academic Search

Purpose: To show the wide range of anatomical vascular variants, arterial and venous, that can be seen in the angiographic renal study using 64-multidetector-row CT (64-MDCT), due to its importance in an eventual surgical planning. Material and methods: We have evaluated retrospectively 26 studies that have been performed using a 64 channels Philips Brilliance CT scanner. We have obtained non

Daniela Stoisa; Fabrizio Galiano; Andrés J. Quaranta; Roberto. L. Villavicencio; J. R. Villavicencio

2007-01-01

181

Camina por Salud: Walking in Mexican-American women  

Microsoft Academic Search

Forty-six percent of older Mexican-American women report that they do not engage in leisure time physical activity (PA); 38.1% of them are obese. This study (1) evaluated a PA intervention for coronary heart disease risk reduction and (2) determined which variables affect adherence to PA. For 36 weeks, Group I members walked for 3 days a week and Group II

Colleen S. Keller; Adelita Cantue

2008-01-01

182

Cincinnati levanta el telón para destacar a las mujeres en el teatro  

E-print Network

dramaturgas sirvieron este propósito espléndidamente. En las mismas, el encuentro entre escritoras del teatro de diferentes nacionalidades—por citar un ejemplo, la mesa redonda en la que participaron las españolas Carmen Resino, Lidia Falcón y Julia Verdugo... por el Centro de Investigaciones Teatrales Rodolfo Usigli, México). La primera noche (5 de octubre) se representaron textos de Diana Raznovich, de Lidia Falcón y de Nora Glickman (Argentina/ Nueva York). Se presentó la pieza Autumn Garden de...

Seda, Laurietz; Garcí a, William

1995-10-01

183

Calidad de vida relacionada con la salud de pacientes infectados por VIH medida por el Cuestionario de Salud SF36  

Microsoft Academic Search

Objectives: The aim of the study was to known the influence of HIV- infection in healthrelated quality of life (HRQL). We have used clinico- immune variables and progressionmortality presented by the disease. Patients and methods: From March 1997 through March 1998 a total of 300 HIV-infected patients were carried out the Health Survey SF-36. We included a control group (also

M. A. García Ordóñez; J. J. Mansilla Francisco; E. Nieto Aragón; M. R. Cereto; F. Salas Samper; M. Vallejo Díaz; J. Martínez González

2001-01-01

184

CONTAMINACIÓN POR METALES PESADOS EN SUELO PROVOCADA POR LA INDUSTRIA MINERA HEAVY METALS POLLUTION IN SOILS DAMAGED BY MINING INDUSTRY  

Microsoft Academic Search

Mining in the study area has been carried out for several centuries, causing environmental alterations, generating poor soils for plant establishment and health hazards for humans. The objective was to evaluate presence of Lead, Cadmium, Zinc and Arsenic in soil with variables: distance to the pollution source and soil depth, hence determining relations with soil physical- chemical characteristics. The study

Soraya Puga; Manuel Sos; Toutcha Lebgue; Cesar Quintana; Alfredo Campos

185

Predação de Opisthocomus hoazin por Spizaetus ornatus e de Bubulcus ibis por Bubo virginianus em Tocantins, Brasil  

Microsoft Academic Search

Predation of Cattle Egret by the Great Horned Owl and Hoazin by the Ornate Hawk-Eagle in western Tocantins State, Brazil. We report the predation of Hoazin Opisthocomus hoazin by an immature Ornate Hawk-Eagle Spizaetus ornatus, a new prey for this species in Brazil. The Ornate Hawk-Eagle roosted together with Hoazin assembly in branches of Sapium haematospermum, typical river borderline vegetation.

Túlio Dornas; Renato Torres Pinheiro

186

PERFORMANCE HIDRÁULICA E PERFIL DE DISTRIBUIÇÃO DE ÁGUA DO MICROASPERSOR NAAN 7110, SOB DIFERENTES CONDIÇÕES DE VENTO1  

Microsoft Academic Search

The main purpose of testing equipments used in trickle irrigation systems consists of determining its hydraulic characteristics and analyzing its performance. Aiming to supply subsidies for an adequate design of trickle irrigation systems, a research was developed under laboratory and field conditions, in area belonging to the Irrigation and Drainage Engineering Laboratory at the of Paraíba, Federal University, in order

José Dantas Neto; Mônica Garcia; Agra de Medeiros; Carlos Alberto; Vieira de Azevedo; Hamilton Medeiros de Azevedo

187

Produção hidropônica de couve-chinesa (Brassica pekinensis), em sistema NFT, com diferentes concentrações de solução nutritiva  

Microsoft Academic Search

Hidroponic productin of chinese cabbage crop (Brassica pekinensis) in NFT system, with different concentrations of nutritive solution. Hidropony is an agricultural technic where the plants are cultivated without utilization of soil, because the necessary nutrients to their growth are available in the nutritive solution. Its viability on comercial scale ocurred in the midle sixties, with the creation of the Nutrients

Irlan Araújo de Lima; Ana Carolina; Borges Sodré; José Magno Queiroz Luz; Borges dos Santos Vinícius; Cecília Alves Bittar

188

Producción y rendimiento reproductivo en Petrolisthes granulosus (Decapoda, Anomura, Porcellanidae) en diferentes localidades del norte de Chile: Una comparación latitudinal  

Microsoft Academic Search

Ovigerous females of the porcellanid crab Petrolisthes granulosus were collected in the northern zone of Chile, to analyze latitudinal variations in their reproductive biology. Samples were taken from five localities situated between 18°33'S to 25°20'S. The average fecundity values for both locality and size strata, size of minimum sexual maturity, reproductive output and egg volume in the final stage of

Patricio Hernáez Bové

2001-01-01

189

As diferentes abordagens do conteúdo de Cinemática nos livros didácticos do ensino de Ciências brasileiro (1810-1930)  

Microsoft Academic Search

Resumo: Este trabalho tem o objetivo mostrar como o conteúdo de Cinemática foi abordado ao longo do século XIX até a década de 1930. Destacamos também que alguns livros estrangeiros tiveram grande influência no ensino de Física brasileiro, uma vez que no início do século XIX não existiam autores de livros didáticos nacionais nesta disciplina. Esse fenômeno não ocorreu apenas

Roberto B. Nicioli Junior; Cristiano Rodrigues de Mattos

190

Comparação de efeitos dos extratos de Hypericum perforatum (Hipérico) e de Mentha crispa (Hortelã) em diferentes modelos experiemtais.  

E-print Network

??Avaliações clínicas têm sido possíveis com radiobiocomplexos marcados com tecnécio-99mTc (99mTc). Drogas naturais ou sintéticas são capazes de interferir na marcação de estruturas sanguíneas com… (more)

Sebastião David dos Santos Filho

2007-01-01

191

AVALIAÇÃO FÍSICO-QUÍMICA E SENSORIAL DO IOGURTE NATURAL PRODUZIDO COM LEITE DE BÚFALA CONTENDO DIFERENTES NÍVEIS DE GORDURA  

Microsoft Academic Search

Palavras-chave: SUMMARY PHYSICO-CHEMICAL AND SENSORY EVALUATION OF PLAIN YOGURT MANUFACTURED FROM BUFFALO MILK WITH DIFFERENT FAT CONTENT. Yogurt can be considered an excellent alternative for utilization of buffalo milk. However, consumers may have some acceptance problems in relation to buffalo yogurt because of the original high fat content of the milk. The aim of the present study was to evaluate

Otaviano Carneiro; CUNHA NETO; Carlos Augusto; Fernandes OLIVEIRA; Ricardo Muta HOTTA; Paulo José; Amaral SOBRAL

2005-01-01

192

CARACTERÍSTICAS DA CARCAÇA DE OVINOS SANT A INÊS TERMINADOS EM PASTEJO E SUBMETIDOS A DIFERENTES NÍVEIS DE SUPLEMENT AÇÃO1  

Microsoft Academic Search

The aim of this study was to evaluate carcass characteristics of Santa Inês lambs, maintained in native pasture and submitted to different supplementation levels in the diet (1,5%, 1,0% e 0,0% do LW). Twenty-four castrated sheep with 15 ±1,44 kg of mean live weight (LW) were used and average age of 150 days. The concentrate was constituted of cracked corn,

Adriano Freitas Dantas; José Morais; Pereira Filho; Aderbal Marcos de Azevedo Silva; Bonifácio Benício de Sousa; Marcílio Fontes Cézar

193

USO DO CONCEITO DE PROTEÍNA IDEAL EM RAÇÕES COM DIFERENTES NÍVEIS ENERGÉTICOS, SUPLEMENT ADAS COM FIT ASE PARA FRANGOS DE  

Microsoft Academic Search

An experiment was carried out to evaluate the performance and nutrients digestibility by broiler chickens in the period of 1 to 21 days of age. The experimental design was completely randomized, where T1 was the control treatment constituted by 21.1% of crude protein (CP), 3000 kcal of apparent metabolizable energy (AMEn)\\/kg, 0.46% of available phosphorus (AP) and 1.0% of calcium

Adriano Kaneo Nagata; Paulo Borges Rodrigues; Kênia Ferreira Rodrigues; Rilke Tadeu; Fonseca de Frietas; Luiz Fernando Teixeira Albino; Elias Tadeu Fialho

194

AVALIAÇÃO DA INFESTAÇÃO DO BICHO-MINEIRO E DO CRESCIMENTO DO CAFEEIRO SUBMETIDO A DIFERENTES NÍVEIS DE DÉFICIT HÍDRICO  

Microsoft Academic Search

The effect of different levels of water deficit over leaf minner ( Leucoptera coffellum (Guérin- Ménevile & Perrottet, 1842)) infestation and coffee culture growth (Coffea arabic L., cultivar Mundo Novo), in the initial phase of culture formation, were evaluated appraised through an experiment conducted in a green house. The treatments were based on water reposition directly to the soil corresponding

DANIEL FURTADO DE MEIRELES; JACINTO DE ASSUNÇÃO CARVALHO; JAIR CAMPOS MORAES

195

Emergência e vigor de plântulas de Cedrela fissilis L. em função de diferentes posições de profundidades de semeadura  

Microsoft Academic Search

Emergence and vigor of Cedrela fissilis L. seedlings in function of the sowing position and depth. Cedrela fissilis L. are Meliaceae, popularly known as cedro. This species is native to Brazil, and owing to its qualities for the timber industry, it is being exploited progressively at its place of occurrence until the point of exhaustion. It is now listed as

Sueli da Silva Santos; Mácio Farias de Moura; Roberta Sales Guedes; Edilma Pereira Gonçalves; Edna Ursulino; Paulo Alexandre; Fernandes Rodrigues de Melo

2009-01-01

196

FORMATOS ESTNDAR DE METADATOS PARA LOS DIFERENTES TIPOS DE DOCUMENTOS EN Digital.CSIC: LIBROS o PARTE DE LIBRO  

E-print Network

.CSIC: LIBROS o PARTE DE LIBRO Metadato Campo DC Cualificador Observaciones 1. AUTOR dc.contributor author Number (ISBN). Código internacional de identificación del libro. 10. IDENTIFICADOR: OTRO (DL, NIPO) dc.identifier other Otros códigos de identificación del libro (DL, NIPO, etc.). Se consignará el tipo de código en

197

OS PRIMEIROS A MORRER: AS VANGUARDAS ARTÍSTICAS NO PERÍODO DA DITADURA MILITAR NO BRASIL  

Microsoft Academic Search

O presente estudo tem por objetivo verificar como as correntes artísticas responderam ao estabelecimento da ditadura militar no Brasil. Nosso objeto é a produção artística engajada do primeiro período de regime militar, de 1964 a 1968 (do golpe ao AI- 5). É necessário determinar o nível de engajamento de diferentes grupos artísticos e como os suportes foram utilizados para esta

Rodrigo Medina Zagni

198

Nuevos enfoques del tratamiento de la fenilcetonuria  

Microsoft Academic Search

ResumenDesde su descubrimiento por Følling en 1934, la fenilcetonuria (FCU) ha sido objeto de numerosos estudios de investigación, abarcando varias disciplinas como genética humana, bioquímica, desarrollo, neurobiología y otras. Durante los últimos 75 años se han mapeado diferentes mutaciones en los genes responsables de la enfermedad, se ha aclarado su base bioquímica y se han revelado los mecanismos conducentes al

Ronen Eavri; Haya Lorberboum-Galski

2010-01-01

199

Structure du capital et coûts d'information : le cas des entreprises françaises à la fin des années quatre-vingt  

Microsoft Academic Search

[spa] Estructura del capital y costes de informaciôn : el caso de las empresas francesas a finales de los ochenta . La estructura de financiaciôn de una empresa es el resultado de un arbitraje entre los costes de los diferentes recursos : autofinanciaciôn, deudas o emisiones de acciones. Estes costes son determinados, en su mayor parte, por las asimetrfas de

Béatrice Colin-Sédillot; Jérôme Bourdieu

1993-01-01

200

Efectos heterogéneos del trabajo infantil en la adquisición de habilidades cognitivas  

Microsoft Academic Search

El estudio se ocupa de los efectos heterogéneos del trabajo en la formación de capital humano a través de una definición amplia de trabajo que incluye toda actividad asociada a responsabilidades no escolares. Dada la variedad de responsabilidades asumidas por niños y adolescentes peruanos, se toma en cuenta dos criterios para clasificar los diferentes tipos de trabajo: el tipo de

Carmen Ponce

2012-01-01

201

ESTILO DE VIDA DOS PROFESSORES DE EDUCAÇÃO FÍSICA AO LONGO DA CARREIRA DOCENTE NO ESTADO DE SANTA CATARINA  

Microsoft Academic Search

Resumo: O objetivo deste estudo foi analisar o nível de associação entre os Ciclos de Desenvolvimento Profissional (CDP) e o Estilo de Vida (EV) dos professores do magistério público estadual de Santa Catarina. A amostra foi constituída por 580 docentes de diferentes regiões do estado, sendo 265 do sexo masculino e 315 do sexo feminino. Na coleta de dados foi

VIEIRA DO NASCIMENTO; ADRIANO FERRETI BORGATTO

202

ESTUDO DO IMPACTO DA VARIAÇÃO DOS MEIOS DE HOSPEDAGEM NAS DESTINAÇÕES TURÍSTICAS  

Microsoft Academic Search

O turismo, diferente de outras áreas, constitui-se de um ramo de atividades executadas por pessoas que, em determinadas situações, tornam-se turistas. Como a área de estudo, o turismo é recente e vem sendo matéria de pesquisa em diversos campos com mais tradição como a sociologia, a economia, a geografia, a psicologia, dentre outras. Principalmente pelo fato de ser um campo

José Gustavo Ferreira Candelária

2008-01-01

203

Evaluación de la influencia de la revaluación del tipo de cambio sobre la demanda de turismo en Colombia  

Microsoft Academic Search

El turismo representa una actividad fundamental dentro de una economía, por los diferentes impactos que tiene sobre otros sectores. En el mundo se está viviendo cierto auge en la actividad turística, reflejando Colombia similares tendencias en esta materia. Recientemente se está presentando un fenómeno revaluativo del tipo de cambio peso-dólar, aspecto este que motiva al estudio de tal situación, e

Raúl Quejada Pérez; Felipe Del Río Carrasquilla

2009-01-01

204

IMPACTOS DE LA ACTIVIDAD TURÍSTICA EN LA FORMA DE VIDA DE LA SOCIEDAD LOCAL Y EL PATRIMONIO CULTURAL EN GUARANDA, EDUCADOR: PERCEPCIÓN DE LOS VISITANTES  

Microsoft Academic Search

En la actualidad existe una enorme tendencia en incentivar el crecimiento económico por medio del fomento de actividades vinculadas con el sector servicios. En contraparte, diversos críticos e investigadores, hablan sobre los efectos del turismo en diferentes regiones del mundo, señalando que muchas veces dicha actividad puede generar efectos positivos en el bienestar de los países, sin embrago también se

Reyna Ibáñez

2011-01-01

205

Un modelo descriptivo del sistema reproductor hembra del coipo (Myocastor coypus) I: el ovario (A descriptive model of the female reproductive system of coypu (Myocastor coypus) I: the  

Microsoft Academic Search

El coipo (Myocastor coypus) es un roedor de amplia utilización como especie peletera a escala mundial. Los ambientes naturales ocupados por el coipo son los acuático-continentales, si bien la especie ha demostrado gran adaptabilidad a diferentes ambientes y regiones geográficas. A partir de su liberación accidental de granjas de cría, se localizan poblaciones naturalizadas en Inglaterra, EEUU, países del Este

R. Argentina

206

Evolución de la estructura de ingresos relativos en Lima Metropolitana: un análisis de los factores de oferta y de demanda, 1986-1995  

Microsoft Academic Search

La investigación analiza la evolución de los ingresos por trabajo en Lima Metropolitana durante el periodo 1986-1995. Para ello se divide a la población ocupada en grupos de género, educación y experiencia, lo que permite explorar la evolución de la estructura de ingresos relativos entre los diferentes grupos. El objetivo general del estudio es analizar el mercado de trabajo de

Juan José Diaz

2003-01-01

207

Economía del conocimiento, ciudad y competitividad  

Microsoft Academic Search

Desde finales de los años 80’s, Barcelona se convierte en una metrópolis internacional en la que se concentra el grueso de la competitividad exterior de la economía española. Hasta el momento, el esfuerzo para comprender las razones por las cuales la economía de Barcelona ha conseguido esta posición tan destacada son de naturaleza fundamentalmente urbana. En diferentes investigaciones se ha

Joan Trullén; Josep Lladós; Rafael Boix

2002-01-01

208

Precio del agua y relocalización del recurso en la economía andaluza. Una aproximación desde un modelo de equilibrio general aplicado  

Microsoft Academic Search

El objetivo de este trabajo consiste en analizar los efectos que tendría un incremento en la tarifa del agua del sector agrario sobre la conservación del recurso, la eficiencia en el consumo y la posible relocalización del mismo entre los diferentes sectores productivos. La política tarifaria se aplicará sobre el sector agrario debido, por un lado, al excesivo consumo de

M. Alejandro Cardenete; G. J. D. Hewings; E. Velázquez

2005-01-01

209

Análisis funcional y actividades documentadas en el nivel II de la Cueva del Parco (Alòs de Balaguer, La Noguera)  

Microsoft Academic Search

Este artículo es el resumen de la Tesis de Licenciatura presentada en la Universidad de Barcelona en junio de 1996. En él se presentan las conclusiones obtenidas del análisis funcional de la industria lítica del nivel II de la Cueva del Parco (Alos de Balaguer, La Noguera). Destaca por su importancia el trabajo sobre la piel en sus diferentes fases

Manuel Calvo Trias

1997-01-01

210

Sazonalidade dos ductos secretores e óleo essencial de Foeniculum vulgare var. vulgare Mill. (Apiaceae)  

Microsoft Academic Search

RESUMO: Este trabalho teve como objetivo analisar os ductos secretores e o óleo essencial das folhas de Foeniculum vulgare em diferentes épocas do ano. Para esta fi nalidade, foram realizados estudos de caracterização anatômica, bem como anatomia comparada dos ductos secretores e testes histoquímicos das folhas. O óleo essencial foi obtido de folhas e frutos, por hidrodestilação em aparelho de

L. A. Sousa; J. C. R. Albuquerque; M. N. Leite; M. B. Stefanini

2005-01-01

211

El Proceso de Gobernanza de la Cadena de la Mora. Un Estudio de Caso en el Departamento de Caldas (Colombia)  

Microsoft Academic Search

La Mora (Rubus Glaucus Benth) es un cultivo relativamente pequeño en el contexto de la agricultura colombiana. No obstante, en la última década, se ha aumentado el área cultivada y la productividad por hectárea en diferentes zonas de Colombia, esto debido principalmente a la implementación de políticas públicas y estrategias gubernamentales articuladoras, que han generado interesantes dinámicas de cooperación y

A. I. Tobasura; P. C. Ospina

2010-01-01

212

Una Evaluación Geográfica de la Política de Educación Media Superior de la Ciudad de México  

Microsoft Academic Search

En este trabajo presentamos una evaluación geográfica de la política de las preparatorias creadas y administradas por el gobierno de la ciudad de México. La revisión teórica y evaluación estadística realizadas nos ha permitido (1) construir relaciones explicativas útiles entre varios conceptos de teorías urbanas provenientes de escuelas divergentes, y de disciplinas diferentes, y a la vez (2) hacer una

LAURA CERVANTES-SALCIDO; CARLOS J. VILALTA-Y PERDOMO

2006-01-01

213

Informe de actividades 2007 +Encuesta nutricional\\Burkina Faso.  

E-print Network

clara convergencia de las diferentes estructuras de fortalecimiento del potencial científico de los. Una política refrendada por la certificación ISO 9001 de la estructura que tiene a su cargo la estructuras de fortalecimiento del potencial de investigación de las instituciones asociadas de los países en

214

Método de determinación del origen geográfico del polen apícola comercial  

Microsoft Academic Search

Cinco muestras de marcas de polen apícola, que son frecuentes en el comercio regional, han sido estudiadas y su composición po- línica analizada mediante diferentes técnicas con el objetivo de conocer su origen geográfico. Se han usado tres métodos que pueden con- siderarse complementarios: los valores porcentuales del análisis de polen por microscopía óptica, el análisis colorimétrico y el estudio

Pilar de Sá-Otero; Silvia Marcial-Bugarín; Sandra Armesto-Baztán; Emilia Díaz-Losada

2002-01-01

215

Ingenieros militares en España en el siglo XIX. Del arte de la guerra en general a la profesión del ingeniero en particular  

Microsoft Academic Search

Esta comunicación tiene por objeto mostrar las diferentes opciones profesionales del Cuerpo de Ingenieros Militares español durante el siglo XIX. Una corporación técnica y facultativa que desde principios del ochocientos perdió algunas competencias del campo de la ingeniería civil. En este trabajo señalaremos la adaptación de los mecanismos de selección de estos ingenieros y las reivindicaciones que realizaron para equipararse

José Ignacio Muro Morales

2007-01-01

216

Nuestro Instituto  

Cancer.gov

Información acerca de nuestra misión como Instituto Nacional del Cáncer, así como sobre los diferentes tipos de investigación que apoya nuestro Instituto, el programa de centros oncológicos, y sobre el Informe Anual a la Nación acerca del cáncer, el cual es preparado por las principales organizaciones oncológicas de los Estados Unidos.

217

La salida de la crisis pasa por el no keynesianismo y por la apuesta por las energías renovables, ¿que es mas eficiente, la energía solar o la energía eólica?  

Microsoft Academic Search

Este testo trata de resolver la duda mas importante en tema de alternativa económica que existe hoy día, así que le daré toda la importancia y rigor que necesita, y básicamente, demostrare en economía, casi todo es posible, y desde luego, cualquier cambio tecnológico, es posible, y a coste real 0.

David Sánchez Palacios

2009-01-01

218

Soy Cuba, de cierta manera  

Microsoft Academic Search

Resumen:El triunfo revolucionario en 1959 y la inmediata creación del Instituto Cubano del Arte e Industria Cinematográficos (ICAIC) posibilitaron la aparición de un cine cubano diferente al producido hasta entonces y, al mismo tiempo, la exhibición de filmes de otras latitudes casi desconocidas por el público. Esta profunda transformación cultural trajo consigo una nueva manera de promocionar el cine mediante

Sara Vega

2010-01-01

219

Atlas del Genoma del Cáncer  

Cancer.gov

Es posible que haya más de 200 tipos diferentes de cáncer y muchos subtipos más, cada uno de estos causado por errores en el ADN que desencadenan el crecimiento descontrolado de las células. La identificación de los cambios en el conjunto completo de ADN de cada tipo de cáncer, su genoma, y el entendimiento de cómo interactúan dichos cambios para impulsar el proceso de la enfermedad sentarán las bases de una era individualizada de tratamiento del cáncer.

220

Na Cauda do Cometa  

NASA Astrophysics Data System (ADS)

Quando viam um cometa, os antigos gregos imaginavam uma estrela com uma vasta cabeleira. Não à toa, a palavra deriva do termo koma, que significa cabelo. Constituídos por fragmentos de gelo e gases, os cometas possuem um núcleo sólido, que pode ter vários quilômetros de diâmetro, e uma cauda que sempre aponta na direção contrária ao Sol, devido aos ventos solares. Graças à aparência de pontos luminosos em movimento (ao contrário de outros astros, que parecem estáticos), esses corpos celestes foram interpretados por diferentes povos com muito misticismo, inspirando mitos tanto de boas-novas como de maus presságios. Conheça algumas dessas histórias:

Voelzke, M. R.

2009-01-01

221

Drinking Water Problems: Arsenic (Spanish)  

E-print Network

E l elemento ars?nico ocurre naturalmente en formas diferentes, y se puede clasificar como org?nico o inorg?nico. El ars?nico se distribuye extensamente en las piedras, la tierra, el agua y el viento, as? como en los seres vivos. El ars?nico puede... de la erosi?n, la disoluci?n y el des- gaste por el clima, el ars?nico se puede liberar de la corteza terrestre al agua subterr?nea o superficial. Las aguas geot?rmicas (por ejemplo, las ?fuentes ter- males?) tambi?n pueden liberar ars?nico en el agua...

Lesikar, Bruce J.; Melton, Rebecca; Hare, Michael; Hopkins, Janie; Dozier, Monty

2006-06-19

222

Coeficiente de fricción por curvatura no intencional en Coeficiente de fricción por curvatura no intencional en concreto postensado concreto postensado Wobble friction coefficient in post-stressed concrete  

Microsoft Academic Search

This work was aimed at establishing a wobble friction coefficient (K) from records regarding some post-stressed bridges built in Colombia. Such records were arranged and analysed together with stress diagrams resulting from the corres- ponding plans, calculations and reports. Suitable records were produced from this review to make the analysis. Once the records had been selected, the probable wobble friction

Diego Ernesto; Dueñas Puentes; Maritzabel Molina Herrera

223

La Convencin sobre el Comercio Internacional de Especies Amenazadas de Fauna y Flora Silvestres (CITES, por sus siglas en ingls) es un acuerdo internacional firmado por  

E-print Network

garantizar que el comercio internacional de animales y plantas no amenace su supervivencia en la naturaleza. Los animales o plantas enu- merados en CITES que son tomados de alta mar --definido como "el entorno

224

CARACTERÍSTICAS SEMINAIS DE GALOS ALIMENTADOS COM RAÇÕES SUPLEMENTADAS COM DIFERENTES ÓLEOS E NÍVEIS DE VITAMINA E Seminal characteristics roosters fed diets supplemented with different oils and vitamin E  

Microsoft Academic Search

The objective of this study was evaluate breeding and productive performance of Lohmann- LSL roosters. A total of 112 breeding roosters from 16 to 32 weeks of age were allotted to a randomized block design in a 3 x 2 + 1 factorial arrangement, with three sources of oil (soybean, canola and sunflower in 3%of inclusion ) and two levels

Carolina Elizabeth Orihuela Rodenas; Luis David Solis Murgas; Mônica Patrícia Maciel; Julliana Melo Ferraz; Maria Carolina Ribeiro; Antonio Gilberto; Rilke Tadeu; Fonseca de Freitas; Elias Tadeu Fialho

225

PROPAGAÇÃO DE ESTACAS APICAIS DE FIGUEIRA: DIFERENTES AMBIENTES, ÁCIDO INDOLBUTÍRICO E TIPO DE ESTACA Propagation of fig tree apical cuttings: Different ambient, indolbutyric acid and type of cutting  

Microsoft Academic Search

The aim of work was to verify the influence of different ambient, apical bud and indolbutyric acid in the rooting of fig tree apical cutting. Woody cutting of fig tree apical was collected in August, standardized with 20 cm of length and without leaves. The treatments were constituted of cutting with or without the apical bud, immerged or not in

Rafael Pio; José Darlan Ramos; Nilton Nagib; Jorge Chalfun; Tiago Chaltein Almeida Gontijo; Vander Mendonça; Edney Paulo Carrijo; Edvan Alves Chagas

226

EFEITOS DE DIFERENTES FORMULAÇÕES COMERCIAIS DE GLYPHOSATE SOBRE ESTIRPES DE Bradyrhizobium 1 Effects of Different Glyphosate Commercial Formulations on Bradyrhizobium Strains  

Microsoft Academic Search

This work aimed to evaluate the effects of glyphosate commercial formulations on Bradyrhizobium strains under laboratory conditions. The formulations were applied in the concentration of 43.2 µg L -1 of the a.e. and the strains were inoculated in yeast extract manitol (YM). Herbicide effect on the growth of the Bradyrhizobium strains was assessed by optic density reading in a spectrophotometer.

E. A. SANTOS

227

Estudio comparativo de diferentes estrategias metaheurísticas para la resolución del labor scheduling problem.\\/Analisys of different methauristas for solving labor scheduling  

Microsoft Academic Search

En este trabajo se analiza el labor scheduling problem que consiste en programar el horario de trabajo o los turnos de los distintos empleados de forma que se minimicen los gastos de personal y los costes de oportunidad esperados. Dado que generalmente las empresas y organismos mantienen un elevado nivel de flexibilidad en sus horarios, tradicionalmente muchos procedimientos usados para

S. CASADO YUSTA; J. PACHECO BONROSTRO

2003-01-01

228

DIFERENTES TIPOS DE SERVIÇOS IMPLICAM EM DIFERENCIADAS ESTRATÉGIAS REDUTORAS DE RISCO PERCEBIDO: UM ESTUDO EM ACADEMIAS DE GINÁSTICA, FAST-FOODS E LABORATÓRIOS DE ANALISES CLÍNICAS  

Microsoft Academic Search

Many factors contribute to the high risk associated with the purchase of services. The construct of perceived risk was considered to be an appropriate framework with which to examine the purchase process of services such as fast-food, clinical labs and gyms classes. A sample of 1157 students from a major Brazilian university was assessed via questionnaire. The results indicate different

Sergio Carvalho; Benício de Mello; Francisco Ricardo Bezerra Fonsêca; Arcanjo Ferreira de Souza; Tatiana Bittencourt Gouveia

229

AVALIAÇÃO FÍSICO-QUÍMICA DE GOIABAS DESIDRA TADAS OSMOTICAMENTE EM DIFERENTES SOLUÇÕES Phisical-chemistry evaluate of guava osmostic dehidration in solutions different  

Microsoft Academic Search

The present research had the purpose to evaluate the effect of ascorbic acid, calcium lactate and blanching in the quality of guava osmotic dehydrated through analyses physical-chemistry. The treatment with sucrose syrup and calcium lactate obtained product with larger pH not presenting significant difference in the texture of product in relation to the treatment just with sucrose syrup. The osmotic

Kelen Cristina dos Reis; Ligia Ferreira de Azevedo; Heloisa Helena de Siqueira; Fabiana Queiroz Ferrua

230

EV ALUACION DE DIFERENTES FORMAS DE SUPLIR EL BANANO EN LA ALIMENT ACION DE CERDOS DURANTE LA ET AP A DE CRECIMIENTO Y ENGORDEI  

Microsoft Academic Search

Effect of different practices of feeding bananas to growing and fattening pigs. The effects of feeding bananas in different systems to growing and fattening pigs with an average weight of 32.5 kg were randomly assigned to 3 treatments: a) unpeeled green bananas, b) unpeeled ripe bananas and c) smashed peeled ripe bananas. All forms of bananas were given ad libitum,

Carlos Campabadal; Jorge Eduardo Solis; Jose-Ramon Molina

231

VARIAÇÃO NAS CARACTERÍSTICAS FÍSICAS E QUÍMICAS DA ÁGUA DO RIO TOCANTINS A JUSANTE DA USINA HIDRELÉTRICA SERRA DA MESA (GO), EM DIFERENTES ÉPOCAS DO ANO  

Microsoft Academic Search

RESUMO O presente trabalho objetivou estudar a avaliação das características físicas e químicas das águas do rio Tocantins (TO), a jusante da UHE Serra da Mesa, nas épocas seca e chuvosa. Os dados foram coletados junto ao Projeto de Monitoramento Limnológico do rio Tocantins a jusante da UHE Serra da Mesa, como integrante de um convênio firmado entre Universidade do

Daniela Alves Oliveira; Ricardo H. P. B. Peixoto; Cleverland Carvalho de Araújo; Oliveira Barros; Ana Márcia; Fernandes da Cruz

232

Modificação parcial do ambiente de cultivo da videira 'Cabernet Sauvignon' sobre diferentes porta-enxertos: efeito sobre a produção e o teor de sólidos solúveis  

Microsoft Academic Search

CROP PARTIALLY MODIFIED ENVIRONMENT ON DIFFERENT ROOTSTOCKS OF 'CABERNET SAUVIGNON' GRAPEVINE: EFFECT ON YIELD AND SUGAR CONCENTRATION In the traditional regions of grape growers, where the incidence of rain is concentrated on the stage of fruit development and maturation, the search for improved crop management strategies is justified, aiming at attenuate the impact of it on yield quality. An experiment

Maria Aparecida Ferreira; Mário José Pedro Júnior; Antonio Odair Santos; José Luiz Hernandes

2004-01-01

233

Relação entre diferentes indicadores antropométricos e a percepção da imagem corporal em idosas ativas Association between different anthropometric indicators and body image perceptions in active elderly  

Microsoft Academic Search

Background: The prevalence of body image dissatisfaction have grown, and relationships between self-image and different anthropometric indicators are not yet well known in many groups. Objective: Identify the relationship betwe- en body image perception and different anthropometric indicators among active elderly. Methods: Sixty-two elderly who are part of a hydro-gymnastics program for at least 5 years participated in the study.

Fe L den Pereira; Ferreti Borgatto; L uciane

234

QUALITY OF FRESH-CUT AVOCADO (Persea americana Mill.) STORED UNDER DIFFERENT TEMPERA TURES Qualidade de abacates (Persea americana Mill.) minimally processados armazenados sob diferentes temperaturas  

Microsoft Academic Search

The goal of this work was to evaluate the effect of different storage temperatures on the quality maintenance of fresh-cut 'Fortuna' avocado (Persea americana Mill.). The fruit was selected, washed and sanitized with sodium hypochlorite solution (190 ppm total residual chlorinee) for 15 minutes. After that, the tip was cut and the fruit was also cut in halves, peeled and

Ana Carla; Marques Pinheiro; Eduardo Valério de Barros; Vilas Boas; Lucas Carvalho e Silva; Alessandra de Paiva Alves; Marcelo La Selva; Adimilson Bosco Chitarra

235

PRODUÇÃO DE ENERGIA DO FUSTE DE Eucalyptus grandis HILL EX-MAIDEN e Acacia mangium WILLD EM DIFERENTES NÍVEIS DE ADUBAÇÃO  

Microsoft Academic Search

The objective of this work was to compare the energy production of Acacia mangium wood with Eucalyptus grandis at 7 yars old in Botucatu-SP. Both species belonged to a 2x2x2 fertilization trial with two randomized blocks in the presence and absence of calcium. A total of 128 trees from each tree specie was sampled with wood transversal sections collected along

Ailton Teixeira; Maria Aparecida Mourão Brasil; Carlos Marchesi de Carvalho; Ricardo Antonio de Arruda Veiga

2000-01-01

236

EFICIÊNCIA DO INSETICIDA BF314 EM DIFERENTES DOSES E EM MISTURA COM O PADRÃO ACETAMIPRID PARA CONTROLE DE Aphis gossypii NA CULTURA DO ALGODOEIRO  

Microsoft Academic Search

It was evaluated in Rio Verde - GO, the control of Aphis gossypii with applied systemic insecticides in pulverization, in the culture of the cotton. It was used the cultivar Aroeira and the experimental design used was blocks completely randomized with six treatments and four replications, and each plot was constituted of four lines of six meters in length. The

Eduardo Machado; Roges Borges

237

CONTENIDO DE TANINOS CONDENSADOS EN GERMOPLASMA DE TRES ESPECIES DEL GÉNERO Lotus EN DIFERENTES AMBIENTES Condensed tannin concentrations of three Lotus species germplasm grown in different environments  

Microsoft Academic Search

The condensed tannins (TC) present in Lotus spp., according their concentrations in plant, can avoid bloat and improve the protein absorption in ruminants. With the objective to know the variability of this characteristic, the TC concentration (% dry matter basis) determined by the butanol-HCl procedure in 13 cultivars of Lotus corniculatus L. (Lc) introduced from North and South-America and Oceania,

Hernán Acuña; Alex Concha; Marcos Figueroa

238

Comparación del sellado apical obtenido mediante una técnica de gutapercha termoplastificada a baja temperatura y condensación lateral de gutapercha con dos conos maestros diferentes  

Microsoft Academic Search

Aim: To compare the apical sealing in mesio-buccal canals of extracted molars obturated with low-temperature thermoplas- ticized gutta-percha or cold lateral condensation techniques using a .06 or a .02 mm\\/mm tapered gutta-percha master cone. The secondary aim was to evaluate the depth of spreader penetration in root canals using a .06 or a .02 mm\\/mm tapered gutta- percha master cone.

Mercedes Pérez Heredia; Javier Clavero González; Carmen María; Ferrer Luque; María Paloma González Rodríguez; Pérez-Heredia M; Clavero-González J; Ferrer-Luque CM

239

Cultura de aula de matemática presente nas narrativas de formação por professores do ensino fundamental  

Microsoft Academic Search

This text is about th e research is inserted in the scope of the Project of Improvement of Public Teaching Representations of infancy and youth in school culture , supported by Fapesp, developed next to a municipal public school (Itatiba-SP). From a work shared with the teachers of this school, narratives of formation were produced by the teachers, allowing to

Valéria Galvão; França Cezari; Regina Célia Grando

240

Pneumopatia causada por Mycobacterium kansasii * Lung disease caused by Mycobacterium kansasii  

Microsoft Academic Search

Introdução: O Mycobacterium kansasii é uma micobacté- ria não tuberculosa que pode causar colonização ou infecção pulmonar. Objetivo: Relatar experiência com doença pulmonar cau- sada pelo M. kansasii em uma série de seis pacientes diag- nosticados ao longo de cinco anos. Método: Entre junho de 1995 e junho de 2000 foram ad- mitidos 1.349 pacientes no Dispensário do Ipiranga Ari

NELSON MORRONE; NELSON MORRONE JUNIOR; CARLA GONÇALVES

2003-01-01

241

O EFEITO DA ESPLENECTOMIA SOBRE A OBESIDADE INDUZIDA POR GLUTAMATO MONOSSÓDICO(MSG).  

E-print Network

??Introdução: O excesso de tecido adiposo está associado a instalação da síndrome metabólica (SM), reunindo diversas alterações fisiológicas, tais como, intolerância a glicose, dislipidemia, hipertensão… (more)

ELISANGELA GUEIBER MONTES

2013-01-01

242

1/4 XXII CBEB 2010 MEDIO DA VARIABILIDADE DO VOLUME SISTLICO POR MEIO DE  

E-print Network

, ressonância magnética de fluxo, RMN, VFC, HRV. Introdução O débito cardíaco é o volume médio de sangue atividade do sistema nervoso autônomo, conectando a variabili- dade da freqüência cardíaca (VFC) às sinais de respiração, VFC e VVS. Materiais e Métodos A técnica proposta consiste em: (1) obter imagens de

Carvalho, João Luiz

243

XXIII Congresso Brasileiro em Engenharia Biomdica XXIII CBEB ANLISE MULTIDIMENSIONAL DA FADIGA MUSCULAR POR MEIO DE  

E-print Network

and spectral fatigue estimators in high-density surface electromyography, using topological maps (in with topological maps to represent the spatial information provided by the use of a 2D matrix of electrodes, allows

Carvalho, João Luiz

244

Integrantes Originales de la Comisin Central de RRHH La comisin estuvo conformada originalmente por  

E-print Network

Medicina. Sr. José Luís Figueroa Ayala, Subdirector de Administración y Finanzas de la Escuela Salud Rodríguez, Presidenta Asociación de Funcionarios Medicina Norte. Sr. Carlos Lazcano Morales, Director Humanos. Dra. Isabel Segovia Dreyer, Directora del Departamento de Atención Primaria y Salud Familiar. Sr

Rapaport, Iván

245

Expectativas profesionales de internos de medicina y su inclinación por la atención primaria de salud  

Microsoft Academic Search

Introduction: Current availability of human resources in health is within international standards, but in our country distribution is not equitable and in inverse relation with central health problems. Objective: To determine professional expectations of medical interns and their inclination for primary health care. Design: Descriptive and transversal study, with randomized systematic sampling. Setting: Five Lima and Callao's national hospitals, during

Marco Ramírez

246

Infraestructura y Servicios a la Comunidad: Servicios por campus Cantoblanco Medicina  

E-print Network

Medicina Cafeterías y Comedores 15 1 16 Oficinas de correos 1 0 1 Sucursales bancarias ( * ) 3 0 3 Cajeros Centro Médico de Salud Laboral y un Centro Médico del Estudiante Fuente: Oficina de Servicios a la

Autonoma de Madrid, Universidad

247

Perfiles de densidad de galaxias 3-D y segregación por tipo espectral en grupos de galaxias  

NASA Astrophysics Data System (ADS)

We have analysed the distribution of galaxies in groups identified in the largest redshift surveys available: the final release of the 2dF Galaxy Our work comprises the study of the galaxy density profiles and the fraction of galaxies per spectral type as a function of the group-centric distance. We have calculated the projected galaxy density profiles of groups using composite samples in order to increase the statistical significance of the results and we infer the 3-D galaxy density profiles using a deprojection method similar to the developed by Allen & Fabian. Special cares have been taken in order to avoid possible biases in the group identification and the construction of the projected galaxy density profile estimator due to the irregular sky coverage of the 2dF Galaxy Redshift Survey. We have adopted a generalized King profile to fit the obtained projected density profiles and use them to construct mock clusters and obtain the 3-D density profiles per spectral type. From the 3-D galaxy density profile we have estimated the 3-D fraction of galaxies per spectral type. Comparing with the fraction of galaxies computed using the projected profiles we observe a similar behavior of the galaxy spectral type segregation as the obtained by Domínguez et al. for groups in the early data release of the 2dF Galaxy Redshift Survey. As expected, the trends obtained for the 3-D galaxy fractions show steeper slopes.

Díaz, E.; Zandivarez, A.; Merchán, M. E.; Muriel, H.

248

"¿Por qué leemos esto en la clase de español?": The Politics of Teaching Literature in Spanglish  

ERIC Educational Resources Information Center

This article discusses what is at stake in teaching works written in "Spanglish" in Spanish departments and what teaching such works might mean for students and the scholarly community at large. This article primarily comes out of the author's experiences teaching "Spanglish" works in Spanish courses at a major research…

Postma, Regan L.

2013-01-01

249

Diferenças na seleção de hospedeiros de Fluvicolinae (Tyrannidae) por Molothrus ater e Molothrus bonariensis (Icteridae).  

E-print Network

??Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, 2013. O parasitismo interespecífico de ninhada é uma estratégia reprodutiva em que… (more)

Souza, Nelma Martelli Toledo de

2013-01-01

250

EFEITOS DO ACOMPANHAMENTO DE HIPERTENSOS EM UM GRUPO DE CAMINHADA POR ACADÊMICOS DE ENFERMAGEM  

Microsoft Academic Search

Systemic Arterial Hypertension (SAH) is one of the most common problems in adults, the main risk factor for cardiovascular disorders. The objective was to investigate the effects of monitoring of hypertensive patients in a walking group. In order to control the SAH of the coverage area. Used the methodology an experience report, attended by 27 women and one man, aged

Maria Alves Barbosa; Márcio Felipe; Bastos Coelho; Maisa de Sousa Santos; Mara Rubia; Sousa Barbosa; Marina Araújo Pessôa

2010-01-01

251

Fases lquido-cristalinas anisotrpicas Fases lamelares preparao de lipossomas por  

E-print Network

,25 0,50 0,75 1,00 Univestigated area VIII VII VI V IV III II I C16 TAPA6000 P-xylene Water CTAPA + água,00 0,00 0,25 0,50 0,75 1,00 0,0 0,2 0,4 0,6 0,8 1,0 hexagonal + p-xylene hexagonal inverted hexagonal + p-xylene 15 14 13 12 11 6 10 9 8 7 543 2 1 hexagonal inverted hexagonal+ lamellar or hexagonal + p-xylene

Loh, Watson

252

Tóxicos detectados en muertes relacionadas con fuegos e intoxicaciones por monóxido de carbono  

Microsoft Academic Search

Other toxics that also appeared were, among others, benzodi- azepines, butane, antidepressants and ethyl alcohol in variable concentrations but with the trend being higher in those cases where fire was involved, indicating some responsability of this toxic in the course of the event. Resumen: Se presentan en este trabajo las conclusiones del estudio realizado sobre los resultados de los análisis

J. Gómez; F. Valcarce

2003-01-01

253

Introduccin a la demostraccin asistida por ordenador con Isabelle/HOL  

E-print Network

Matemáticas), en concreto en los temas de deducción natural proposicional5 y de de primer orden6 En este nivel del Grado en Mate- máticas) y Programación declarativa8 (de 3o del Grado en Informática), en concreto

Alonso, José A.

254

ABSORCION DE NITROGENO POR CEBADA CERVECERA EN DOS SUELOS DEL SUR BONAERENSE, ARGENTINA  

Microsoft Academic Search

-1 (60N) were studied in a pot experiment in a glasshouse using urea labelled with 15 N applied at sowing to two soils: Bordenave (B, Typic Haplustoll), and Tres Arroyos (TA, Petrocalcic Argiudoll). Pots were destructively sampled at the fifth leaf, ear emergence, milky kernel and physiological maturity stages. Distribution of 15 N and 14 N in shoots and roots,

MA LAZZARI; MA CANTAMUTTO; RA ROSELL; FE MÖCKEL; ME ECHAGÜE

255

¿POR QUÉ LOS SUELOS VOLCÁNICOS NO SIGUEN LA ECUACIÓN DE TOPP?  

Microsoft Academic Search

The transmission of an electromagnetic wave through the soil using Time Domain Reflectometry (TDR) permits the determination of its water content, q, given the composite dielectric constant of the soil, ?c, via Topp's equation. This is possible since the dielectric constant of water is much larger than that of the soil's solid phase (80 vs. 5), and therefore changes in

C. M. Regalado; R. Muñoz Carpena; A. R. Socorro

256

BIODEGRADACIÓN DE DIESEL MEXICANO POR UN CONSORCIO DE BACTERIAS DE UN SUELO AGRÍCOLA  

Microsoft Academic Search

The biodegradation of diesel in water was done by means of the microorganisms present in an agriculture soil. The kinetics of biodegradation and adsortion of diesel were determined in order to aplying the procedure in soil and water resources contamined with diesel. The mehodology and results of biodegradation and adsortion of diesel in sintetic water is presented with a soil

SANTIAGO CARDONA; ROSARIO ITURBE

2003-01-01

257

COMPACTACIÓN INDUCIDA POR EL TRÁNSITO VEHICULAR SOBRE UN SUELO EN PRODUCCIÓN HORTÍCOLA  

Microsoft Academic Search

Field tests were carried out with the objective of characterizing the state of compaction in horticultural soil induced by traffic, after the development of a cabbage crop ( Brassica oleracea L. group capitata) cycle, and its incidence on yield. Measurements of penetration resistance, bulk density, and moisture content in soil were made and aeread biomass at the end of the

Antonino Marcelo Terminiello; Roberto Hernan; Jorge Alejandro Claverie; Juan Pablo Casado

258

PERDIDA DE NUTRIENTES POR EROSION HIDRICA EN DOS SUELOS DEL CALDENAL PAMPEANO  

Microsoft Academic Search

2 ). Losses of N and P were significantly higher in March than in September. In the bare soil, nutrient losses were higher in the Haplustoll than in the Ustipsamment, while with vegetation cover, erosion was of lesser importance, and similar for both soil types. Organic carbon was the soil constituent that suffered the highest losses due to water erosion.

EO ADEMA; FJ BABINEC; N PEINEMANN

259

22 BULLETIN OF THE UNITED STATES FISH COMMISSION. LIST O F WATER PLANTS POR CARP PONDS.  

E-print Network

minor, L. Lemna gibba, L. Widely diffused. America and Europe. Chiefly in Europe, but has been found.-sweet Flag. Calamus. LEMNACELE. Duckweed family. Common. Lemna triszclca, L.-Duckweed. Duck's-meat. Lenana

260

Recuperação de proteínas do soro de leite por meio de coacervação com polissacarídeo  

Microsoft Academic Search

This work aimed to recover and fractionate milk whey proteins through the coacervation technique, using sodium carboxymethyl cellulose (CMC) polysaccharide. Milk whey was obtained from the manufactured cheese type \\

Caroline Dário Capitani; Maria Teresa Bertoldo Pacheco; Homero Ferracini Gumerato; Alfredo Vitali; Flávio Luis Schmidt

2005-01-01

261

Manejo sustentable de los recursos naturales guiado por proyectos científicos en la mixteca poblana mexicana  

Microsoft Academic Search

Sustainable management of natural resources guided by scientific projects at the Mexican Mixteca Poblana. We raised the necessity of an effectively and fast transfer of the results obtained by researchers to inhabitants of the natural areas. This necessity is more peremptory in the case of the developing countries, and when researches work in the management of natural resources. It is

E. Baraza Ruiz; J. P. Estrella-Ruiz

2008-01-01

262

Couer: This image of a por tion of the sky was produced  

E-print Network

mission to Jupiter. At the same time, Voyager flight operations continued with an emphasis on planning involve Cal- tech faculty, and Campus research has led to projects undertaken at JPL. These ties are very projects in alter- native energy sources reached a stage where it was appropriate to transfer them

Waliser, Duane E.

263

16 FEBRUARY 2005 hree in the morning, too much coffee, and hours of por-  

E-print Network

was born in the late 1170s. MH: What was it like growing up in Pisa? LP: Pisa, Genoa, Amalfi, and Venice good, the merchants pret- ty much ruled the roost. They put kids to work early in those days; labor, even before that I learned to read. Hanging around merchants, peddlers, money-lenders, etc. I learned

Brown, Ezra

264

Violencia y prosocialidad en los contenidos televisivos infantiles visionados por menores  

E-print Network

the contents, beating antisocial behaviours treated with humour. Young children keep watching more adult TV-edukietan Violence and Prosociality in Children Television Contents Viewed by Children from Alicante Victoria Tur children programmes. We see gender differences on violence apprecial. Keywords: Television Contents

Escolano, Francisco

265

El Pacto por la Educación en Cataluña. La realidad y el deseo  

Microsoft Academic Search

Resumen Se examina en este artículo en qué medida el cambio de gobierno en la Generalitat de Cataluña a finales de 2003 supuso un giro en la política educativa de esta comunidad autóno- ma. Los tres partidos que entonces formaron gobierno concedieron en su programa una importancia destacada a la cuestión educativa. En los meses siguientes, se desarrolló un amplio

David Medina

266

Investigación y política educativa en el Perú: lecciones de los estudios promovidos por el CIES  

Microsoft Academic Search

Se ha intentado identificar y discutir, a partir de las investigaciones realizadas en el marco del Consorcio de Investigación Económica y Social (CIES) desde 1999, las lecciones o mensajes para la política educativa nacional. Siendo importante la cantidad de investigación realizada en este marco, ésta no es, sin embargo, toda la investigación que se ha producido. Se ha tratado de

Martín Benavides; José Rodríguez

2006-01-01

267

RESPONSABILIDADE CIVIL OBJETIVA DO ESTADO POR DANOS DECORRENTES DA MÁ CONSERVAÇÃO DAS VIAS PÚBLICAS 1  

Microsoft Academic Search

RESUMO: O presente artigo visa demonstrar que é Responsabil idade do Estado a conservação das vias públicas e, se a Administração Pública não cumprir com a prestação dos serviços públicos, responderá pelos danos que decor rerem de sua omissão objetivamente, como prevê o § 6º do Art. 37 da Constituição Federa l. Ter as vias públicas conservadas garante a segurança

Patrícia Bispo Zanusso

268

S U M A R I O CARGAS DE HUNDIMIENTO POR PUNTA PARA PILOTES EN ROCA  

E-print Network

DE PROYECTOS DE INGENIERÍA CIVIL. Sarah Ruiz Arriaga y Manuel Ramón García Sánchez-Colomer 92) no se hace responsable de las opiniones, teorías o datos publicados en los artículos de Ingeniería Civil, siendo ello responsabilidad exclusiva de sus autores. COORDINACI�N DE PUBLICIDAD Manuel Pombo Martínez

Espigares, Tíscar

269

Home before You Know It = De regres en casa en un dos por tres.  

ERIC Educational Resources Information Center

The arrival of a newborn requires a great deal of adjustment. Intended for new and expectant parents, this booklet and companion video provide practical advice and hands-on demonstrations of the essentials of mother and baby care, from birth to the first visit to the pediatrician. The first part of the booklet, which comes in both English- and…

Vida Health Communications, Inc., Cambridge, MA.

270

La gestión del ruido ambiental provocado por infraestructuras de transporte: una aplicación para Euskadi  

Microsoft Academic Search

Although the damaging effects of noise on human health had been recognized since the seventies, the European Environmental Policy had been focused in specific transport emissions, such as the gases of the greenhouse effect or the suspension particles. It was the approval of the law by the European Board regarding ambient noise that marked the start of a new stage

David Hoyos Ramos

2010-01-01

271

Segregación educativa y la brecha salarial por género entre los recién graduados universitarios en Colombia  

Microsoft Academic Search

In this paper we show the importance of subject of degree in explaining the gender wage gap in Colombia. In order to minimize the influence of gender differences in experience, promotions, and job changes on the wage gap, we focus on college graduates who have a formal job and who have been in the labor market at most one year.

Laura Cepeda Emiliani; Juan D. Barón

2012-01-01

272

Avaliação da resistência à corrosão de aços inoxidáveis com Nb endurecíveis por precipitação  

Microsoft Academic Search

Precipitation hardening stainless steel was developed from 1945 in consequence of the aerospace industry needs. These steels possess substitutional martensitic microstructures that can be hardened by precipitation lately. On this work it was produced two steels with alternative compositions using Nb as a precipitate former, as well a steel PH13-8Mo for comparison purposes in terms of mechanical and corrosion resistance.

Luiz Carlos Casteletti; Frederico Augusto Pires Fernandes; Amadeu Lombardi-Neto; Carlos Alberto Picon; Germano Tremiliosi-Filho

2010-01-01

273

Evaluación del extracto lipofílico de Cucurbita pepo L. sobre la hiperplasia prostática inducida por andrógenos  

Microsoft Academic Search

Es conocido que el aceite extraído de semillas de C. pepo L. es rico en ácidos grasos insaturados, destacándose el linoleico (43-56 %) y el oleico (24-38 %). Además contiene tocoferoles beta y gamma (vitamina E) y carotenoides: luteolina y beta- caroteno. Otros componentes lipídicos son escualeno y esteroides (1%), entre los que destacan delta7-esteroles como alfa-espinasterol, delta7, (27)-estigmastatrien-3beta-ol, delta7-estigmastenol,

Juana Tillán Capó

274

Hiperplasia nodular regenerativa: hepatotoxicidad por azatioprina en un paciente con enfermedad de Crohn  

Microsoft Academic Search

We report the case of a 53-year-old man with Crohn's disease who developed azathioprine-induced nodular regenerative hyperplasia of the liver. The diagnosis was suspected when abnormalities in liver function tests were observed and transabdominal ultrasonography and upper gastrointestinal endoscopy showed signs of portal hypertension. The final diagnosis was established by liver biopsy, showing the characteristic alterations in liver architecture. Outcome

Cristina López-Martín; Enrique de la Fuente-Fernández; Paloma Corbatón; María Chaparro Sánchez; J. P. Gisbert

2011-01-01

275

Marchitez Bacteriana en Chile Bell Causada por Erwinia carotovora subsp carotovora  

Microsoft Academic Search

Since 1998-1999 a new disease was detected in bell pepper plants in the horticultural region of La Cruz de Elota, Sinaloa, Mexico, causing an estimated damage of 10 to 60% in different areas. Plants become diseased at about 40 day after planting. The characteristic symptoms appear as a soft lesion at the crown which induces general wilting and death of

Raymundo Saúl García-Estrada; Claudia Juárez-Reyes; José Armando Carrillo; Raúl Allende-Molar; Isidro Márquez-Zequera; María Dolores Muy

2000-01-01

276

CORPO NOSSO DE CADA DIA: POR ONDE ELE ANDA, PARA ONDE ELE VAI?  

Microsoft Academic Search

Through this text I intend to broach our everyday body, and its future perspectives, as a cultural production with distinct historical itineraries; a provisional result of diverse discourses and product of a sofisticated corporal technology. Also, I try to put in question how the phisical education, supported by a utilitarian and essentialist vision, has been helping to build our anatomies

Alex Branco Fraga

277

Análise de associações de major royal jelly protein 1 por cromatografia de exclusão molecular.  

E-print Network

??Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Biologia Celular, Pós-Graduação em Biologia Molecular, 2012. Polifenismo é a habilidade de um genoma expressar… (more)

Jorge, Humberto Gonczarowska

2012-01-01

278

Avaliação eletroquímica de juntas soldadas por fricção radial de aços inoxidáveis supermartensíticos.  

E-print Network

??Os aços inoxidáveis supermartensíticos são utilizados na indústria de petróleo e gás na construção de tubulações, cuja aplicação requer procedimentos de soldagem. Estes processos influenciam… (more)

Carlos Alberto Della Rovere

2007-01-01

279

CENS D'ALUMNES PER DEPARTAMENT CENSO DE ALUMNOS POR DEPARTAMENTO  

E-print Network

AMAT PAMIES, MARI CARMEN48685663E63 AMERIGO GILABERT, IRENE48670887N64 AMOR GARCIA, MARAVILLAS48697720G65 AMOROS DIEZ, INES15422246X66 AMOROS IBAÃ?EZ, LEONOR20473255N67 AMOROS PEREZ, ANA15423941A68 ANDRÃ?S

Escolano, Francisco

280

EFECTO DEL AMPERAJE EN LAS PROPIEDADES DE RECUBRIMIENTOS DUROS RESISTENTES A LA ABRASIÓN APLICADOS POR SOLDADURA  

Microsoft Academic Search

The effect of amperage on microstructure, hardness and abrasive wear resistance of two Fe- based hardfacing alloys with high Cr and C was studied. Two and three layers of each hardfacing electrode were applied by SMAW process onto ASTM A36 steel plates. The abrasive wear resistance was calculated from the mass losses measured after abrasion tests, using a dry sand-rubber

HÉCTOR IVÁN; MONSALVE GIL

281

Estudos iniciais da poluicao por chumbo na Guanabara. (First studies of lead pollution in Guanabara).  

National Technical Information Service (NTIS)

The main sources of direct lead intake are studied, and metal concentrations in several medium are examined. Lead was extracted by dithizone in C Cl(sub 4), being determined by optical spectrophotometry. (sub 2) (sub 1) (sub 2) Pb was used as a radioactiv...

C. L. Silveira Branquinho

1973-01-01

282

DESINFECCIÓN SOLAR DE AGUAS POR FOTÓLISIS Y FOTOCATÁLISIS: APLICACIÓN EN TUCUMÁN, ARGENTINA  

Microsoft Academic Search

Solar Water Disinfection (SODIS) and Solar Heterogeneous Photocatalysis (FHS) are effective, inexpensive and easy to use methods in places that lack water mains and have scant resources. This work reports studies carried out to validate SODIS and FHS technologies for bacterial disinfection. In the latter case, TiO2 was used as a catalyst on different supports like PET bottles and porcelain

M. Litter; Energía Atómica

283

Determinação espectrofotométrica de dipirona em produtos farmacêuticos por injeção em fluxo pela geração de íons triiodeto  

Microsoft Academic Search

-1 (n = 10) with a detection limit (three-fold blank standard deviation\\/slope) of 6.0 x 10 -5 mol L -1 The feasibility of the system was demonstrated for the determination of metamizol in commercial samples with sixty results obtained per hour. The results obtained for metamizol in pharmaceutical formulations using the proposed flow procedure and those obtained using an iodimetric

Airton Vicente Pereira; Luciane Penckowski; Marcos Vosgerau; Michelli Fernanda Sassá; Orlando Fatibello Filho

2002-01-01

284

Home | Search | Employee Locator | Visitor Info | Library | Espaol | Site Overview Enfermedades provocadas por el  

E-print Network

detergentes también pueden causar urticarias y ampollas. El viento y el sol dejan la piel paspada y seca. Las, haga clic aquí. Dermatitis Dermatitis es el nombre médico para la piel inflamada e irritada. Muchos de

Bezrukov, Sergey M.

285

Utilización de la ventilación mecánica no invasiva en neumonía grave por virus H1N1  

Microsoft Academic Search

ObjectiveThe use of noninvasive mechanical ventilation was evaluated in our series of patients admitted to our ICU with pneumonia due to influenza A virus H1N1, assessing the need for intubation, arterial blood gases and clinical improvement, the development of complications and ICU and hospital stay.

A. Belenguer-Muncharaz; R. Reig-Valero; S. Altaba-Tena; P. Casero-Roig; A. Ferrándiz-Sellés

2011-01-01

286

Qualidade de vida e dimensão ocupacional na esquizofrenia: uma comparação por sexo  

Microsoft Academic Search

Schizophrenia has been associated with low quality of life in patients, and the impact can vary by gender. Knowing gender differences may help implement specific interventions. This study focuses on quality of life in male and fe- male outpatients with schizophrenia, particu- larly examining the occupational domain. A cross-sectional study using the Quality of Life Scale (QLS-BR) was carried out.

Clareci Silva Cardoso; Waleska Teixeira Caiaffa; Marina Bandeira; Arminda Lucia Siqueira; Mery Natali Silva Abreu; José Otávio Penido Fonseca

2006-01-01

287

El Titulo IX y La Discriminacion por Sexo (Title IX and Sex Discrimination).  

ERIC Educational Resources Information Center

Title IX of the Education Amendments of 1972 protects people from discrimination based on sex in education programs or activities that receive Federal financial assistance. This brochure outlines the responsibilities of education programs and activities covered by Title IX, the responsibilities of the Office for Civil Rights (OCR) in enforcing…

Office for Civil Rights (ED), Washington, DC.

288

IMPLEMENTAÇÃO E ANÁLISE DE LOCALIZAÇÃO EM ROBÓTICA MÓVEL POR FILTRO DE KALMAN  

Microsoft Academic Search

This paper presents the verification of continuous positioning estimation for a mobile robot using four sensors (three sonars and one odometer). These estimations are performed by a computationally efficient algorithm, with recursive formulation called Kalman Filter. The robot has the capability of moving on static environments, knowing its initial position and all environment obstacles. According to this information, the Kalman

Claudiney Calixto da Silva; Juliano Augusto Pereira; Praça Marechal Eduardo Gomes

289

Por qué importan las instituciones. La banca y el crecimiento económico en México  

Microsoft Academic Search

If finance is crucial to growth, as a large literature has demonstrated, then why is there wide variance in financial development across countries? Why have governments not put the appropriate policies into place to encourage the development of banks and securities markets? This paper addresses this question by exploring the development of the Mexican banking system from the 1880s to

Stephen Haber

2006-01-01

290

Listado de cursos de verano por lugar de realizacin CAMPUS DE LA UA  

E-print Network

Proyección de la voz y lectura dramatizada Reparación de estructuras de hormigón Trastornos mentales y Cálculo de estructuras de hormigón armado con Cypecad ¿Cuáles son los derechos de los turistas y cómo se

Escolano, Francisco

291

Función pulmonar pre y post operatoria en bypass gástrico laparotómico y laparoscópico por obesidad mórbida .  

E-print Network

??Introducción: La obesidad está asociada a múltiples comorbilidades, entre ellas la patología respiratoria, que puede verse incrementada después de realizar cirugía bariátrica. Objetivo: Evaluar en… (more)

Burgos L., Ana María

2008-01-01

292

SINTESIS Y CARACTERIZACIÓN DE PEROVSKITAS DE LaCoO3 POR EL MÉTODO CITRATO  

Microsoft Academic Search

In this work were synthesized LaCoO3 perovskites by the citrate method at temperatures lower than 650ºC and calcination temperatures lower than 5 hours. Perovskite precursors were characte- rized by FT- IR, crystalline structure were analyzed by X ray diffraction after calcinations process and morphology was evaluated by scanning electronic microscopy SEM. It was verified by FT - IR that complex

J. M. Rendón Ramírez; L. C. Moreno Aldana; J. S. Valencia Ríos

293

EVALUACIÓN DEL RIESGO POR CONTAMINANTES CRITERIO Y FORMALDEHÍDO EN LA CIUDAD DE MÉXICO  

Microsoft Academic Search

An environmental risk assessment study for Mexico City on criteria pollutants (O3, NO2, SO2 and PM10) and formaldehyde (HCHO) is presented. The methodology for non-carcinogenic effects is based on the Hazard Index and for carcinogenic effects is based on the life cancer probability and life loss expectancy (LLE). These quantitative estimates, which can be applied in other cities, have the

José Agustín GARCÍA-REYNOSO; Michel GRUTTER; Daniel CINTORA-JUÁREZ

294

Paciente intervenido de aneurisma de aorta abdominal por técnica quirúrgica endovascular. Caso clínico  

Microsoft Academic Search

An aneurysm is an abnormal dilation or irreversible convex of a portion of an artery. The most common site of aneurysms is the abdominal aorta and their appearance is often due to degeneration of the arterial wall, associated with atherosclerosis and favored by risk factors such as smoking and hypertension, among others. Left untreated, aneurysm of the abdominal aorta usually

Ana Rosa Alconero-Camarero; José Luis Cobo-Sánchez; María Casaus-Pérez; María Elena García-Campo; María José Garcia-Zarrabeitia; Marta Calvo-Diez; Luz Elena Mirones-Valdeolivas

2008-01-01

295

Brote familiar de infección por Mycoplasma pneumoniae A FAMILIAR OUTBREAK OF Mycoplasma pneumoniae INFECTION  

Microsoft Academic Search

We present the cases of 3 children and their mother, with a respiratory disease by Mycoplasma pneumoniae. Diagnosis was made in 4 weeks. They all present respiratory symptoms, in different degrees of severity. Chest X rays show basal infiltrate in the children and no alteration in the mother. Serology for Mycoplasma pneumoniae (Ig M) was positive in two kids and

JUAN GARCÍA GUERRERO; TANIA SOLÍS MEZARINO; GIAN MENDIOLA BARRIOS

296

ARRITMIAS VENTRICULARES INDUCIDAS POR LA MALFUNCIÓN DE MARCAPASOS TEMPORALES EN PACIENTES CON INFARTO VENTRICULAR DERECHO  

Microsoft Academic Search

Transvenous temporary pacemakers (TTP) can provoke ventricular arrhythmias, especially during their implant, while the electrode is being manipulated to be situated in the ventricular cavity. This complication is described in the biomedical and nursing bibliography. On rare occasions TTP can induce late ventricular arrhythmias secondary to generator dysfunction. We present three patients with acute myocardial infarc- tion (AMI) with right

García-Velasco Sánchez-Morago S; Puebla Martín A; Puebla Martín MA

297

Mapeamento da cobertura vegetal natural e antrópica do bioma Cerrado por meio de imagens Landsat ETM  

Microsoft Academic Search

The Cerrado biome occupies 204,7 million hectares in the central part of Brazil. Mapping its land cover from satellite remote sensing is challenging because of its geographic extension, marked seasonality, highly dynamic and intensive land occupation, and spectral confusion between some natural and anthropogenic classes (e.g., natural grasslands and cultivated pastures). The goal of this study was to produce 1:250,000

Edson Eyji Sano; Roberto Rosa; Jorge Luís; Silva Brito; Laerte Guimarães Ferreira; Heleno da Silva Bezerra

298

Narcotráfico y conflicto: ¿por qué bajó el precio de la cocaína?  

Microsoft Academic Search

Combining the approaches of Ortiz and Mejía et al., this paper proposes a new model of drug trafficking and conflict. In a general equilibrium framework, an explanation of the downward trend in the price of cocaine over the last two decades is developed. The model shows that the main factor causing this trend is the increase in productivity in the

Leonardo Raffo López

2010-01-01

299

Estudio multicéntrico de factores pronósticos en adultos hospitalizados por neumonía adquirida en la comunidad .  

E-print Network

??Background: Severity assessment of community-acquired pneumonia (CAP) patients allows the clinician to decide the place of management and guide empirical antimicrobial treatment. Aim: To assess… (more)

Gil D., Rodrigo

2006-01-01

300

The Escuela Moderna Movement of Francisco Ferrer: "Por la Verdad y la Justicia."  

ERIC Educational Resources Information Center

The educational theory and practice of the Escuela Modern (Modern School) movement of the Spanish educator Francisco Ferrer, born in 1850, are discussed. Two fundamental tendencies of the movement are child-centered education and education in didactic terms. (RM)

Fidler, Geoffrey C.

1985-01-01

301

Tomografía por impedancia eléctrica. Estandarización del procedimiento para su aplicación en neumología  

Microsoft Academic Search

The following conditions are optimal for obtaining an adequate number of informative images by electric impedance tomography: a) patient seated or standing with hands at the nape of the neck; b) breathing at rest; c) recording of at least 300 images (at a frequency of 10 Hz), and d) readings taken at the sixth intercostal space.

Bruno de Lema; Pere Casana; Pere Riu

2006-01-01

302

Limitaciones tecnológicas de la tomografía por emisión de positrones (PET) para pequeños animales de laboratorio  

Microsoft Academic Search

Visualization and quantification of organ function by PET in small laboratory animals is becoming an outstanding tool for characterization of phenotype of transgenic and knock-out animals, for the study of animal models of human diseases, and for the development of new therapeutic drugs and diagnostic biochemical probes. To be able to make use of the PET with small laboratory animals

J. J. Vaquero; M. Desco

2005-01-01

303

Medición del patrón ventilatorio mediante tomografía por impedancia eléctrica en pacientes con EPOC  

Microsoft Academic Search

Background and ObjectiveThe measurement of breathing pattern in patients with chronic obstructive pulmonary disease (COPD) by electrical impedance tomography (EIT) requires the use of a mathematical calibration model incorporating not only anthropometric characteristics (previously evaluated in healthy individuals) but probably functional alterations associated with COPD as well. The aim of this study was to analyze the association between EIT measurements

Marco Balleza; Núria Calaf; Teresa Feixas; Mercedes González; Daniel Antón; Pere J. Riu; Pere Casan

2009-01-01

304

Carcinoma de células de Merkel, leucemia linfática crónica y tomografía por emisión de positrones  

Microsoft Academic Search

Merkel cell carcinoma (MCC) is an infrequent neuroendocrine tumor of the skin with a high potential for local recurrence, lymphatic dissemination and distant dissemination. We present a case of MCC in a male patient with chronic lymphocytic leukemia (CLL). The immunosuppression induced by the leukemia or by the chemotherapy could play a pathogenic role in the association of these diseases.

Iván Cervigón; Ana B. Gargallo; Constanza Bahillo; José L. Martínez-Amo; Juan L. Orradre; Vicente Muñoz-Madero; Domingo García-Almagro

2006-01-01

305

Aplicaciones clínicas de la coronariografía por tomografía computarizada multicorte: ¿qué sabemos y qué más podemos saber?  

Microsoft Academic Search

The clinical applications of computed tomography coronary angiography (CTCA) are constantly evolving. Initially employed to quantify coronary artery calcification, multidetector CT also makes it possible to evaluate the anatomy and anatomical variations of coronary circulation, rule out coronary disease, and follow up surgical and percutaneous revascularization procedures. Moreover, CTCA may potentially be useful to quantify ventricular function, characterize non-calcified atherosclerotic

G. Bastarrika; U. J. Schoepf

2009-01-01

306

Plantas visitadas por abelhas africanizadas em duas localidades do estado de São Paulo  

Microsoft Academic Search

The knowledge of plants from a given region, as well as the blooming period and the pollen characteristics, help for the determination of the plant species which contribute for the honey composition. Plants visited by honey bees were listed during the period 1994 to 1997. The survey was carried out weekly, at different times and within a 300 m radius

Luís Carlos Marchini; Augusta Carolina de Camargo Carmell Moreti; Erica Weinstein Teixeira; Etelvina Conceição Almeida da Silva; Ricardo Ribeiro Rodrigues; Vinicius Castro Souza

2001-01-01

307

Abuso sexual por parte de los empleados del colegio (Sexual Misconduct by School Employees). ERIC Digest.  

ERIC Educational Resources Information Center

This digest in Spanish defines sexual misconduct and offers guidelines that school boards and administrators can initiate to protect students from unwanted sexual behavior. The law recognizes two types of sexual misconduct: quid pro quo, when a school employee grants a student a favor in exchange for sexual gratification, and hostile environment,…

Goorian, Brad

308

arco de canto multiansas (multiloop edgewise archwire: meaw) ¿por qué multiloop? a spectos clínicos y biomecánica  

Microsoft Academic Search

resumen La utilización del loop en los tratamientos con aparatolo- gía fija, usando alambres rectangulares, en el contexto de una filosofía de diagnóstico y tratamiento basada en el crecimiento dinámico del complejo maxilofacial, ha pro- vocado un creciente interés entre los clínicos y los investi- gadores. Se destacan en este campo, el profesor Youg Kim, presidente de Mea w Foundation

Ricardo Voss

2008-01-01

309

Producao d Dijatos por Dupla Troca de Pomeron Exclusiva no Experimento D0  

SciTech Connect

The first search for exclusive diffractive dijet production with invariant mass {approx}> 100 GeV in Run II of the Fermilab Tevatron Collider is performed. The set of data used is the Run IIa, corresponding to an integrated luminosity of 30 pb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV taken with the D0 detector. At 95% CL, an upper limit for the ratio between the number of diffractive exclusive events and the number of non diffractive events is set to be 7.5 x 10{sup -6}, excluding two of the three models proposed to explain this production.

Rangel, Murilo, Santana; /Rio de Janeiro, CBPF

2008-10-01

310

"Por Los Ojos De Madres": Latina Mothers' Understandings of College Readiness  

ERIC Educational Resources Information Center

In this study, data from six focus groups with 30 Latina mothers in South Texas were analyzed utilizing a "funds of knowledge" approach to uncover their understandings of college readiness and their role in ensuring their children are college ready. Findings indicate that Latina mothers perceived college readiness in a holistic fashion,…

Cortez, Laura Jean; Martinez, Melissa Ann; Sáenz, Victor B.

2014-01-01

311

USO DA TERRA NA BACIA DO RIO DOURADOS, MS, POR MEIO DE IMAGENS LANDSAT  

Microsoft Academic Search

RESUMO: Com o objetivo de mapear o uso da terra na Bacia do Rio Dourados, foram utilizadas imagens Landsat 7-TM, fusionadas nas bandas Red (R), Green (G) e Blue (B) de 30m, juntamente com a banda Pancromática (PAN) com resolução de 15m, classificadas pelo método supervisionado do software Spring \\/INPE. Concluiu-se que: A vegetação nativa remanescente (mata, cerrado, capoeira e

Omar Daniel; Cristiane de Oliveira Veronesi; Leidiane Silva; Evandro Gelain

312

DETERMINACIÓN DEL CALOR DE RESPIRACIÓN DE FRUTAS POR EL MÉTODO DE TITULACIÓN  

Microsoft Academic Search

The respiration heating of fruits, specially in apples, was the principal objective of the present work by starting with a titration method. An alkaline solution of titration is used by this method where air exempt of CO2 is circulating through a drier to hold the fruit to be studied at a determined temperature. Then, it is bubbled by an alkaline

Juana Montes; Segundo Arévalo

313

DESENVOLVIMENTO DE LIGAS FERROSAS PARA SOLDA DE REVESTIMENTO DURO AUXILIADO POR SIMULAÇÕES TERMODINÂMICAS  

Microsoft Academic Search

A thermodynamic model is used to investigate the solidification of a hardfacing material in Fe-Cr-C-Nb system and, developed for cladding components subjected to severe abrasive wear by welding. Microstructural characterization of the alloy showed that the theoretical simulations carried out to predict the amount and volume fraction of the phases using the module Scheil of MT-DATA Software presented very realistic

Edmilson Otoni Correa; Nelson Guedes de Alcântara; Dorival Gonçalves Tecco; Ramachandran Vasant Kumar

314

El efecto invernadero producido por el CO2 atmosférico: una nueva interpretación termodinámica  

Microsoft Academic Search

The glasshouse effect caused by atmospheric CO2: a new thermodynamic interpretation: At present times the use of models to simulate and predict the climate change and its consequences on global ecological processes has contributed to a better understanding of the phenomena in several disciplines. However, there is evidence that current models fail to simulate a number of well known climatic

EDUARDO R ABRIL

315

Bases para la elaboracion de unidades didacticas de calidad en el area de ciencias (Fisica y Quimica 3 deg ESO)  

NASA Astrophysics Data System (ADS)

Este Trabajo Fin de Master tiene como objeto, el estudio previo de la educacion de la ciencia en la actualidad y mas destacable, del diseno de las unidades didacticas segun las metodologias mas frecuentes aplicadas por los diferentes sistemas educativos en el area de las Ciencias teniendo en cuenta la importancia y el efecto de la psicologia del alumnado y todo ello como no puede ser de otro modo bajo el corse de la Legislacion aplicable, Estatal, Autonomica y europea. Con estos antecedentes, se extrae cuales son las preguntas que deben contestarse en la elaboracion de una unidad didactica de calidad en el contexto, generacional (edad y sexo), del Proyecto Educativo de Centro, y de la Programacion del Departamento, discutiendo y justificando cada uno de los apartados en que estructuradamente dividiremos dicha Unidad, con un formato manejable, util, y dinamico en el tiempo que sea un verdadero instrumento educativo de aula. Teniendo en cuenta estas premisas, se procede a hacer una recopilacion de una misma unidad didactica publicada por diferentes editoriales, elegidas no al azar, sino en funcion de su penetracion editorial en nuestros centros de ESO, siendo las elegidas (SM y Oxford). Las diferentes unidades seleccionadas son analizadas de forma critica, atendiendo a los criterios generales de calidad bajo parametros cientificos y normativos, concluyendo con la aportacion final que es la redaccion de unas pautas cientifico-pedagogicas, para redactar unidades didacticas de calidad en el area de la Ciencias, en concreto en la Asignatura de Fisica y Quimica de 3º de ESO.

Maccioni, Elena Lucia

316

Un modelo general de eyección de materia estelar  

NASA Astrophysics Data System (ADS)

Posiblemente, la más directa y dramática evidencia de la pérdida de masa por parte de diferentes objetos astrofísicos la constituye el fenómeno de eyección persistente de materia. En el caso particular de las estrellas, las características y los mecanismos que impulsan a sus atmósferas externas hacia el medio interestelar varían a lo largo del diagrama evolutivo. En parte por este motivo, en parte por las dificultades matemáticas involucradas, es muy difícil elaborar un modelo que pueda dar cuenta de los diferentes mecanismos que originan e impulsan el viento estelar. Cabe entonces preguntarse si es posible desarrollar un único modelo en el que estos mecanismos puedan ser considerados (y variados) como parámetros externos que responden a las características de cada región de la secuencia evolutiva. La respuesta es que, en función de la geometría del campo electromagnético involucrado, todo depende de la simetría del problema. En este trabajo se presenta el análisis detallado de una de tales simetrías, discutiendo en particular los resultados obtenidos a la luz de las observaciones disponibles.

Rotstein, N. O.

317

Estructura espacial de las órbitas caóticas en un modelo autoconsistente de galaxia elíptica  

NASA Astrophysics Data System (ADS)

Hemos logrado construir modelos autoconsistentes de sistemas estelares utilizando una aproximación cuadrupolar para el potencial. Esto nos permite determinar órbitas y exponentes de Lyapunov de objetos que tienen posiciones y velocidades equivalentes a las que se obtienen de la funcón de distribución del sistema. La distribución espacial de las órbitas caóticas exhibe considerable estructura y, lo que es más importante aún, los valores de los exponentes de Lyapunov calculados sobre intervalos finitos de tiempo, muestran una fuerte correlación con el comportamiento de la órbita en esos mismos intervalos, por lo que permiten reconocer distintos subsistemas con diferentes distribuciones espaciales.

Muzzio, J. C.

318

Male courtship behavior in Ceratitis Capitata (Diptera: Tephritidae) that have received Aromatherapy with ginger root oil  

SciTech Connect

The results of previous studies that showed that exposing mass-reared male Mediterranean fruit flies Ceratitis capitata (Wiedemann) to ginger root oil ('aromatherapy') increases the likelihood of mating with wild females were confirmed. The increased male success could be due to female responses to changes in male behavior or male pheromones. There were no significant differences in the types of courtship movements executed by males with and without aromatherapy. The durations of movements also did not differ when mass-reared males were paired with mass-reared females; however, when they were paired with wild females, there were a few, small differences. Previous studies indicated that the effectiveness of the male long-distance attractant pheromone is not affected by aromatherapy, but these studies did not consider pheromones released at close range during courtship, which behavioral analyses suggest may be different. We propose the following possible explanation for the different effects of aromatherapy with different females. Selection on males under mass rearing may have altered their close-range pheromones in ways that can be remedied by aromatherapy; and only wild females respond because the pheromonal responsiveness of mass-reared females has also changed. We propose observations that could test these ideas. (author) [Spanish] Los resultados de estudios previos que muestran que al exponer machos criados en masa de la mosca mediterranea de la fruta Ceratitis capitata (Wiedemann) al aceite de la raiz del jengibre ('aromaterapia') aumento la probabilidad del apareamiento con hembras naturales fueron confirmados. El aumento en el exito de los machos puede ser debido a las respuestas de las hembras a los cambios en el comportamiento o feromonas de los machos. No hubo una diferencia significativa en la clase de los movimientos del cortejo ejecutados por los machos con y sin la aromaterapia. La duracion de los movimientos tampoco fue diferente cuando los machos criados en masa fueron apareados con hembras criadas en masa; sin embargo, cuando ellos fueron apareados con hembras naturales, resultaron unas pequenas diferencias. Los estudios previos indicaron que la eficacia de la feromona atrayente de machos de larga distancia no esta afectada por la aromaterapia, pero estos estudios no consideran las feromonas sueltas en un rango corto durante el cortejo, cuando el analisis de comportamiento sugiere que puede ser diferente. Nosotros proponemos la explicacion siguiente para los efectos diferentes de la aromaterapia con las diferentes hembras. La seleccion de machos bajo condiciones de cria en masa puede haber alterado las feromonas de rango corto de manera que puede ser remediada por la aromaterapia; y solamente las hembras naturales responden por que tambien ha cambiado la respuesta de las hembras criadas en masa a la feromona. Nosotros indicamos observaciones que pueden probar estas ideas. (author)

Briceno, D. [Escuela de Biologia, Universidad de Costa Rica, Ciudad Universitaria (Costa Rica); Eberhard, W. [Escuela de Biologia, Universidad de Costa Rica, Ciudad Universitaria (Costa Rica); Smithsonian Tropical Research Institute (Panama); Shelly, T. [USDA/APHIS/CPHST, 41-650 Ahiki St. Waimanalo, HI 96795 (United States)

2007-03-15

319

Calendario de Animales  

NSDL National Science Digital Library

Este Web site contiene links a 12 calendarios (12 meses). Junio contiene siete actividades que combinan matemáticas con explorar diferentes animales. Por ejemplo, los chicos hacen una encuesta sobre animales preferidos, buscan un animal que tenga las zarpas más grandes que sus manos, y dicen tantos animales con manchas como puedan en un minuto. Se puede utilizar como actividad independiente, como actividad para hacer en casa, o como actividad de grupo. Disponible para descargar en formato pdf y en Inglés.

Terc

2010-01-01

320

A protocol for storage and long-distance shipment of Mediterranean fruit fly (Diptera: Tephritidae) eggs. 1. Effect of temperature, embryo age , and storage time on survival and quality  

SciTech Connect

The operational use of Mediterranean fruit fly (medfly) Ceratitis capitata (Wiedemann), genetic sexing strains in Sterile Insect Technique applications can be maximized by developing methods for effective shipment of eggs. This would enable a central production facility to maintain the relevant mother stocks and large colonies to supply eggs to satellite centers that would mass produce only males for irradiation and release. In order to achieve this, the survival of medfly embryos of different ages was assessed after storage at 5, 10, 15, 20, and 25 deg. C in water for different periods of time. Survival was affected by all 3 variables, i.e., embryo age, water temperature, and length of storage. Storage of embryos at any temperature for 120 h resulted in almost no survival. Controlling the age of the embryo at the time of the temperature treatment is crucial for the success of this procedure. Embryos collected between 0 to 12 h after oviposition and pre-incubated at 25 deg. C for 12 h provide a suitable 72 h window for shipment when maintained between 10 to 15 deg. C. Under these conditions, no significant reductions in survival during all the developmental stages were observed. (author) [Spanish] El uso operacional de cepas de la mosca del mediterraneo Ceratitis capitata (Wiedemann) en las cuales es posible separar los sexos a traves de mecanismos geneticos para su utilizacion en la Tecnica del Insecto Esteril (TIE), puede ser maximizado con el desarrollo de metodos efectivos para el envio y transporte de huevos. Esto permite que un laboratorio de produccion centralizada mantenga las respectivas colonias responsables por la produccion de huevos para este abastecer laboratorios satelites responsables por la produccion masiva de solamente machos para subsiguiente irradiacion y liberacion. Para ser posible esta alternativa fue evaluada la supervivencia de embriones de diferentes edades despues de su almacenamiento en agua a 5, 10, 15, 20 y 25 deg. C por diferentes periodos de tiempo. La supervivencia fue afectada por las 3 variables evaluadas, la edad del embrion, la temperatura del agua y el periodo de almacenamiento. El almacenamiento de los embriones a cualquier temperatura por 120 horas dio como resultado la casi no supervivencia. Una edad controlada de los embriones a tratar es crucial para el exito de este protocolo. Embriones colectados entre 0 a 12 horas despues de la oviposicion y su previa incubacion a 25 deg. C por 12 horas brinda un margen de hasta de 72 horas de duracion del almacenamiento y transporte, siempre y cuando estos se mantengan en una temperatura de entre 10 a 15{sup o}C. En estas condiciones, fue registrada una reduccion no significante de la supervivencia de los diferentes estados de desarrollo. (author)

Caceres, C.; Wornoayporn, V.; Islam, S.M.; Ahmad, S. [Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Agency's Laboratories, A-2444 Seibersdorf (Austria); Ramirez, E. [Programa Moscamed-Guatemala, Planta de Produccion de Mosca del Mediterraneo km 48, Carretera a El Salvador, El Cerinal, Barberena, Santa Rosa (Guatemala)

2007-03-15

321

Análisis comparativo de las ecuaciones desarrolladas por Jackson et al y por el American College of Sports Medicine (ACSM) para predecir el consumo máximo de oxígeno en estudiantes de fisioterapia  

Microsoft Academic Search

ObjectiveComparativily to analyze the equations developed by Jackson et al, in order to prediction of functional capacity aerobic exercise without making exercise (Nonexercise regression models to estimate peak oxygen consumption [PAR\\/PAF]) and the calculation made in endless band propose by ACSM (American College of Sports Medicine) in a group of students physical therapy.

R. Ramírez Vélez; P. Delgado

2008-01-01

322

ASTAXANTHIN PRODUCTION BY PHAFFIA RHODOZYMA IN A FED BATCH CULTURE USING A LOW COST MEDIUM FEEDING PRODUCCIÓN DE ASTAXANTINA POR PHAFFIA RHODOZYMA EN UN CULTIVO POR LOTE ALIMENTADO UTILIZANDO UN MEDIO DE CULTIVO DE BAJO COSTO  

Microsoft Academic Search

The mutant strain 25-2 of Phaffia rhodozyma was grown in Yucca medium using a fed-batch culture system. The feeding control in the culture medium was carried out in response to pH changes (acid to alkaline) caused by the metabolic activity of the yeasts. This change was understood as a signal of low nutrients of the culture and, therefore, as the

Jesús Ramírez; Noemí Obledo; Melchor Arellano; Enrique Herrera

323

ENRAIZAMENTO DE ESTACAS DOS MARMELEIROS Portugal E Japonês EM DIFERENTES AMBIENTES E POSIÇÕES NO RECIPIENTE Rooting of quince Portugal and Japonês cuttings in different ambient and positions in the recipients  

Microsoft Academic Search

This work had the objective to verify the rooting of quince Portugal and Japonês cuttings in different ambient conditions and positions in the recipients. Woody cuttings of the branch were collected from quinces plants localized in Lavras-MG, in the hibernal period (August). The cuttings were standardized with 20 cm of length, being placed in plastic recipients measuring 28 x 22

Rafael Pio; José Darlan Ramos; Nilton Nagib; Jorge Chalfun; Tiago Chaltein Almeida Gontijo; Edney Paulo Carrijo; Vander Mendonça; Ângelo Albérico Alvarenga; Enilson Abrahão

324

Efeito de diferentes meios de cultivo no desenvolvimento e proporção do sexo de embriões bovinos produzidos in vitro (Effect of different culture media on development and sex ratio of bovine embryos fertilized in vitro)  

Microsoft Academic Search

The effect of culture media on the development and on the sex ratio of bovine embryos fertilized in vitro was studied. Cumulus oocyte-complexes from slaughterhouse ovaries were matured and fertilized in vitro. Zygotes (n= 484) were randomly allotted to different culture media and cultured with their cumulus cells in CR2aa medium and an atmosphere of 5% CO2 in air at

S. G. T. Gilardi; W. F. Sá; L. S. A. Camargo; A. M. Ferreira; M. A. Machado; R. V. Serapião; A. B. M. Soares; T. G. Pinho; J. H. M. Viana; Embrapa Gado de Leite

325

DETERMINACIÓN DE LOS PARÁMETROS HIDRÁULICOS DEL SUELO A PARTIR DE LA MEDIDA DE LA EVOLUCIÓN TEMPORAL DE LA HUMEDAD A DIFERENTES PROFUNDIDADES EN CONDICIONES HOMOGÉNEAS DE PERFIL DEL SUELO  

Microsoft Academic Search

Measurements of soil hydraulic properties are crucial for many studies in agronomy, hydrology and environmental sciences. This paper presents a quick and precise method for estimating the soil hydraulic properties, i.e. soil water retention and hydraulic conductivity curves, for homogeneous soil profile conditions. The method relies on the best-fit between modeled and measured transient soil water content at four different

D. Moret; Z. Saâdi; R. Haverkamp

2007-01-01

326

Dibenzo-p-dioxinas policloradas y dibenzofuranos en peces de cuatro regiones diferentes de México Polychlorinated dibenzo-p-dioxins and dibenzofurans in fish from four different regions of Mexico  

Microsoft Academic Search

Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs\\/Fs), known commonly as dioxins, have been recognized as ubiquitous environmental contaminants. Among those, the 2,3,7,8-substituted congeners, the most toxic compounds, were measured in fish tissue (Caranx caninus, Caranx hippos and Chirostoma estor estor) from three marine regions and one freshwater lagoon in Mexico. Samples were commercially available and were acquired between September and December

Y Cañedo-López; JV Macías-Zamora

327

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

ERIC Educational Resources Information Center

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

Jimenez Lozano, Blanca; And Others

328

MULTIPLICAÇÃO in vitro DA AMOREIRA-PRETA 'ÉBANO' EM DIFERENTES CONCENTRAÇÕES DE MEIO MS E BAP In vitro multiplication of blackberry (Rubus sp.) 'ÉBANO' in diferents MS medium concentrations and BAP  

Microsoft Academic Search

With the objective to micropropagation the blackberry (Rubus sp.), cv. Ébano, nodal segments of plants in vitro, originated from Embrapa Clima Temperado\\/CPACT-Pelotas, RS, were inoculated in MS culture medium (0, 50, 100, 150 and 200%), suplemented with different BAP concentrations (0; 0,5; 1,0; 2,0 and 4,0 mg L-1). The pH was adjusted for 5,8 before adding 6 g L-1 agar

Fabíola Villa; Aparecida Gomes de Araújo; Leila Aparecida; Salles Pio; Moacir Pasqual

329

DESEMPENHO DE NOVILHOS MESTIÇOS NELORE SUPLEMENTADOS EM PASTAGEM COM DIFERENTES NÍVEIS DE CONCENTRADO NO PERÍODO SECO DO ANO 1 Levels of concentrate for grazing nelore crossbred steers in the dry period of the year  

Microsoft Academic Search

In Brazil, the fattening of suplemented grazing animals in the last years accounted for most of the finishing animals in this time of the year. This work had the objective to evaluate the effect of increasing levels of concentrate in the fattening of crossbreed bullocks of Nelore breed grazing suplemented Brachiaria brizanta cv. Marandu pasture in the dry period of

Afranio Afonso; Ferrari Baião; Ivo Francisco de Andrade; Edinéia Alves Moreira Baião; Leonardo Alves Baião; Juan Ramón Olalquiaga Pérez; Carlos Alberto; Pereira de Rezende; Joel Augusto Muniz; Carlos Alexandre; Jeronimo Vieira

330

DETERMINACIÓN DE LAS RESERVAS DE CARBONO DE LA BIOMASA AÉREA, EN DIFERENTES SISTEMAS DE USO DE LA TIERRA EN SAN MARTÍN, PERU DETERMINATION OF CARBON RESERVES OF THE AERIAL BIOMASS IN DIFFERENT LAND USE SYSTEMS IN SAN MARTIN, PERU  

Microsoft Academic Search

Carbon (C) reserves of the aerial biomass were determined, to evaluate the potential of C captures in different land uses in the region of, San Martin, Perú. The land use systems (LUS) were: Primary forest, secondary forest of different ages, traditional agricultural maize systems (Zea maiz), rice (Oriza Sativa), pastures (Brachiaria) and coffee agroforestry systems (Coffea arabica) under shade and

Tatiana Lapeyre; Julio Alegre; Luis Arévalo

2004-01-01

331

EFECTO DE LA FERMENTACION MALOLACTICA SOBRE LA EDAD QUIMICA DE UN VINO TINTO CABERNET SAUVIGNON EN DIFERENTES CONDICIONES DE AÑEJAMIENTO MALOLACTIC FERMENTATION EFFECT ON THE CHEMICAL AGE OF CABERNET SAUVIGNON RED WINE UNDER DIFFERENT AGING CONDITIONS  

Microsoft Academic Search

The effect of the malolactic fermentation on the chemical age of red wine was studied as a measure of its aging. The evaluated factors and levels were: temperature (15 and 25º C), total SO2 concentration (30 and 50 ppm), and pH (3.0 and 3.5). Grapes of Cabernet sauvignon cultivar from the Mexican state of Zacatecas were used. The changes occurring

J. R. Verde-Calvo

332

FORMAÇÃO DE MUDAS DE Coffea arabica L. cv. RUBI UTILIZANDO SEMENTES OU FRUTOS EM DIFERENTES ESTÁDIOS DE DESENVOLVIMENTO Coffea arabica L. cv Rubi seedlings formation from seeds or berries at different developmental stages  

Microsoft Academic Search

Coffee seeds present slow germination and poor storage potential, which makes it difficult seedling formation in a suitable time and under climatic conditions favorable to the crop establishment. The propagation of the coffee plant by means of seedlings coming from seeds is still widely accomplished and reduction of the time for the obtaining a good developed and vigorous seedlings is

Veiga Franco da Rosa; Leonardo Q. de Melo; André Delly Veiga; Sirlei de Oliveira; Carlos Alberto Spaggiari Souza

333

AVALIAÇÃO QUÍMICA DE GELÉIAS DE MANGA FORMULADAS COM DIFERENTES NÍVEIS DE CASCAS EM SUBSTITUIÇÃO À POLP A Chemical evaluation of mango (Mangifera indica L) jams formulated with different levels of peels in substitution to pulp  

Microsoft Academic Search

Objetivou-se, neste estudo, avaliar a qualidade de geléias formuladas com níveis de 0 %, 25 %, 50 %, 75 % e 100 % de cascas em substituição à polpa de manga (Mangifera indica L. cv. Haden). Os critérios de qualidade utilizados foram os teores de umidade, cinzas, proteínas, lipídios, carboidratos totais, açúcares totais, açúcares redutores, sacarose, vitamina C, fibra insolúvel,

Clarissa Damiani; Eduardo Valério de Barros; Vilas Boas; Manoel Soares Soares Junior; Marcio Caliari; Maria do Livramento de Paula; Eduardo Ramirez Asquieri

334

Rendimiento y Crecimiento de Nopalitos de Cultivares de Nopal (Opuntia ficus-indica) bajo Diferentes Densidades de Plantación? Yield and Growth of Green Cladodes of Prickly Pear (Opuntia ficus-indica) Cultivars under Different Plant Densities  

Microsoft Academic Search

The experiment was carried out during March through August, 2001, in the experimental field of the Universidad Autónoma de Baja California Sur, in La Paz, B.C.S., Mexico. A complete randomized block design with split-plots arrangement was used. The fresh and dry yield and growth of tender or young cladodes were evaluated in five prickly pear cultivars 'CEN-1', 'SQ-1', 'CAL-2', 'MEZQ'

Francisco Higinio Ruiz-Espinoza; Jesús Felipe Alvarado-Mendoza; Bernardo Murillo-Amador; José Luis García-Hernández; Roberto Pargas-Lara; Juan de Dios Duarte-Osuna; F. Alfredo Beltrán; Liborio Fenech-Larios

335

INFLUENCIA DE LA LONGITUD DE TRANSICIÓN DE LA HILERA DE TREFILADO SOBRE LA FRAGILIZACIÓN POR HIDRÓGENO DE ACEROS DE PRETENSADO  

Microsoft Academic Search

Prestressing steels are highly susceptible to hydrogen embrittlement (HE). Residual stress and strain states, produced by the wire drawing process, play an essential role in this fracture process because stress and strains fields affect the hydrogen diffusion towards specific places of the material. Therefore variations on stress and strain fields, due to changes in wire drawing process conditions, could modify

M. Lorenzo; V. Kharin; J. Toribio; Fernando Ballesteros

2009-01-01

336

INFLUENCIA DEL ÁNGULO DE ENTRADA EN LA HILERA DE TREFILADO SOBRE LA FRAGILIZACIÓN POR HIDRÓGENO DE ACEROS DE PRETENSADO  

Microsoft Academic Search

Prestressing steels are highly susceptible to Hydrogen Embrittlement (HE). Stress and strain states, produced by wire drawing process, play an essential role in this fracture process because stress and strains fields affect the hydrogen accumulation in specific places of the material. Therefore variations on stress and strain fields, due to changes in wire drawing process conditions could modify service life

M. Lorenzo; V. Kharin; J. Toribio; Fernando Ballesteros

2008-01-01

337

Identificação de fissuras em sementes de arroz após a secagem artificial, por meio de raios-X  

Microsoft Academic Search

The vegetable unit used as rice seed is a caryopsis protected by glumes, which obstruct the visualization of internal damages. X-ray radiographs in rice seeds make possible to see and identify fissures, without preparing the seeds. The objective of this work was to determine parameters that may be possible to obtain radiographs of rice seeds to evaluate fissures, after drying

Nilson Lemos de Menezes; Silvio Moure Cícero; Francisco Amaral Villela

2005-01-01

338

MIGRAÇÃO DE SISTEMA ERP: ESTRUTURAÇÃO DE PRODUTOS POR CENÁRIOS ERP MIGRATION: USING SCENARIOS TO SUPPORT PRODUCTS STRUCTURE DEFINITION  

Microsoft Academic Search

This work presents the main aspects related to the product information re-structure within an ERP system migration process. To support the migration process different test scenarios have been developed and applied to study case model i.e. pressed button, which is the main company product. A estrutura de produto foi modificada de um único nível para modular. Four scenarios have been

Germana Farina Rechden; Carlos Alberto Costa; Enor J. Tonolli Jr; Marcos A. Luciano

339

Extraccion del tritio generado por irradiacion neutronica de aluminato de litio. (Tritium extraction from neutron-irradiated lithium aluminate.).  

National Technical Information Service (NTIS)

Lithium aluminate is being strongly considered as a breeder material because of its thermophysical, chemical and mechanical stability at high temperatures and its favorable irradiation behavior. Furthermore, it is compatible with other blanket and structu...

F. Garcia

1995-01-01

340

QUANDO A HISTÓRIA INVADE A CENA: O CASO VLADIMIR HERZOG (RE)SIGNIFICADO POR FERNANDO PEIXOTO EM \\  

Microsoft Academic Search

Primeiramente, deve-se ressaltar que a proposta desta pesquisa (que se encontra em estágio inicial e que, portanto, muitos questionamentos são apenas apontados neste texto) é uma reflexão sobre a encenação do espetáculo teatral Ponto de Partida de Gianfrancesco Guarnieri, em 1976, no Teatro TAIB (SP), numa produção de Othon Bastos Produções Artísticas e Documenta Produções Artísticas. Neste sentido, tais análises

Ludmila Sá de Freitas

341

Estudo do mecanismo de corrosão por pites em água do mar de aços inoxidáveis supermartensíticos microligados com Nb e Ti  

Microsoft Academic Search

Supermartensitic stainless steel (SMSS) show increasing use, being used in harsh environments due to its good weldability, good mechanical properties at higher temperatures and high resistance to corrosion under stress. Applications in exploration for oil demand superior combination of properties and duplex stainless steel and superduplex have found wide application in this area, despite its high costs. The SMSS consist

Carlos Alberto Picon; Frederico Augusto Pires Fernandes; C. A. D. Rodrigues; G. Tremiliosi-Filho; Luiz Carlos Casteletti

2010-01-01

342

Participación local de la vía L-arginina-óxido nítrico-GMPc en el efecto antinociceptivo inducido por parecoxib  

Microsoft Academic Search

Summary Objective: The present study was undertaken to determine whether the local antinociceptive activity of parecoxib is mediated, at least in part, through the L-arginine-NO-cGMP pathway using the pain-induced functional impairment model in the rat. Material and methods: A comparative and experimental study was designed using 48 female Wistar rats, weighing between 180 and 200 g. Pain was induced through

Zoraida Irene Martínez-Quiroz; Francisco Javier López-Muñoz; Uriah Medardo Guevara-López

2005-01-01

343

AMPUTACIÓN DEL MIEMBRO INFERIOR POR PIE DIABÉTICO EN HOSPITALES DE LA COSTA NORTE PERUANA 1990 - 2000: CARACTERÍSTICAS CLÍNICO-EPIDEMIOLÓGICAS  

Microsoft Academic Search

Objective: To identify the characteristic clinical-epidemiology of the amputation of the inferior member (AIM) by diabetic foot (DF) in patients of the peruvian north coast during years 1990-2000. Materials and methods: Study descriptive, retrospective, that collected information of patients taken care of 5 hospitals of 4 capitals of department of the peruvian north coast. Demographic data and the disease were

David Escalante Gutiérrez; Leonid Lecca García; Julio Gamarra Sánchez; Giannina Escalante Gutiérrez

2003-01-01

344

Metilfenidato: influência da notificação de receita A (cor amarela) sobre a prática de prescrição por médicos brasileiros  

Microsoft Academic Search

Four hundred and sixty three brazilian neurologists and 411 brazilian psychiatrists answered a questionnaire aimed at to obtain information on the prescription of methylphenidate for the treatment of the Attention Deficit and Hyperactivity Disorder. The majority of the doctors reported the erratic occurrence of a few non serious adverse reactions such as headache, weight loss, inapetence, hyperexcitability and tachycardia. On

Elisaldo A. Carlini; Solange A. Nappo; Vagner Nogueira; Fernando G. M. Naylor

2003-01-01

345

"Avaliação clínica do crescimento gengival induzido por ciclosporina-A e tacrolimus em indivíduos transplantados renais: estudo prospectivo".  

E-print Network

??Este estudo teve como objetivos avaliar a ocorrência de crescimento gengival derivado da administração de duas drogas imunossupressoras ciclosporina-A (CsA) e tacrolimus, em indivíduos transplantados… (more)

Ricardo Takiy Sekiguchi

2006-01-01

346

Contaminación por nitrógeno inorgánico en los ecosistemas acuáticos: problemas medioambientales, criterios de calidad del agua, e implicaciones del cambio climático  

Microsoft Academic Search

climate change. The major environmental problems related to inorganic nitrogen pollution in aquatic ecosystems are: (1) acidification of lakes and rivers with low or reduced alkalinity; (2) eutrophication of fresh and marine waters (with the additional problem of toxic algae); and (3) direct toxicity of nitrogenous compounds to aquatic animals. Additionally, inorganic nitrogen pollution could induce adverse effects on human

J. A. Camargo; A. Alonso

347

CAMBIOS EN EL CONTENIDO DE FÓSFORO EN EL SUELO SUPERFICIAL POR LA CONVERSIÓN DE SABANAS EN PINARES  

Microsoft Academic Search

Changes in phosphorus content in the topsoil by the conversion of savanna to pine forest We assessed the changes in P fractions, acid phosphatase activity, and phosphate sorption by the establishment of a pine forest on an acidic, sandy savanna soil. After 24 years, it was found an increase in organic matter and its light fraction content in the topsoil,

Ismael Hernández-Valencia; Montserrat Bautis

348

ESTIMACION DE PROPIEDADES HIDRÁULICAS DE SUELOS POR MEDICIONES A CAMPO Y EL USO DE MODELOS DE FLUJO ESTACIONARIO Y TRANSITORIO  

Microsoft Academic Search

Soil management influences physical properties of the soil, mainly hydraulic functions. Their measurement have been one of the research preferences in Soil Physics. Tension disc infiltrometer has become a valuable instrument for the in situ measurement of soil surface hydraulic properties. Methods of analysis of the information obtained with this instrument have generally relied on the restrictive assumptions of steady-state

ROBERTO R FILGUEIRA; CG SORACCO; GO SARLI; LL FOURNIER

349

Comienza la construcción de instalación patrocinada por el NCI en Puerto Rico para realizar estudios clínicos sobre el cáncer  

Cancer.gov

El gobierno de Puerto Rico ha destinado $196 millones de dólares para construir un hospital oncológico de 287 000 pies cuadrados en San Juan, que contará con 96 camas. El nuevo hospital es el primero en su clase en la región caribeña y en él se llevarán a cabo tratamientos para el cáncer y estudios clínicos.

350

OPTIMIZACIÓN DE UNA POLÍTICA DE INVENTARIOS POR MEDIO DE BÚSQUEDA TABÚ INVENTORY POLICIES OPTIMIZATION USING TABU SEARCH  

Microsoft Academic Search

Ingles: The inventory management problem assumes the estimation of some parameters which are associated to demand, costs and lead time. This work studies and efficient inventory policy for a real application, with the aid of an optimization model adapted from the literature which uses: variable lead time, service levels and order frequency. The solution to this problem was obtained by

Andrea Urrea; Fidel Torres

351

Cirugía videoendoscópica y por laparotomía en el embarazo ectópico complicado Videoendoscopic Surgery and by laparotomy in the complicated ectopic pregnancy  

Microsoft Academic Search

Taking into account that 2% of the pregnancies are ectopic and can cause maternal death, a cross- sectional and descriptive study of the operated patients and discharged with diagnostic of complicated ectopic pregnancy was carried out in \\

José Manuel Ricardo Ramírez; Carmen Cisneros Domínguez

352

Produção por dip coating e caracterização de revestimentos compósitos de poliuretano/alumina sobre fibras de poliamida 6.  

E-print Network

??Este trabalho teve como objetivo produzir, pela técnica de dip coating contínuo, revestimentos compósitos poliuretano/alumina sobre fibras de poliamida 6. Para tanto, foram produzidas suspensões… (more)

Felipe Antonio Lucca Sánchez

2009-01-01

353

Avaliação do emprego da fototerapia laser no processo inflamatório induzido por carragenina na articulação temporomandibular de rato.  

E-print Network

??Temporomandibular disorders (TMDs) are frequent in the population and generally present an inflammatory component. Previous studies have evidenced positive effects of laser photobiomodulation (LPB) on… (more)

Carolina Montagn Carvalho

2008-01-01

354

IDENTIFICACIÓN DE NOMBRES PERSONALES POR MEDIO DE SISTEMAS DE CODIFICACIÓN FONÉTICA PERSONAL NAME IDENTIFICATION THROUGH PHONETIC CODIFICATION SYSTEMS  

Microsoft Academic Search

Resumen La necesidad de identificar las variantes de los nombres personales es un problema muy conocido en diversas aplicaciones, tales como los sistemas de recuperación de información (SRI), las bibliotecas digitales, las bases de datos de pacientes en un hospital, los sistemas de reservas aéreas, o los sistemas de censo. Los métodos de codificación fonética constituyen uno de los procedimientos

Carmen Gálvez

2006-01-01

355

Hipertensión pulmonar tromboembólica crónica debida a trombosis venosa profunda de miembro superior por síndrome del desfiladero torácico  

Microsoft Academic Search

We report on a 20 year-old woman diagnosed with pulmonary embolism (PE) and right subclavian vein thrombosis attributable to stasis caused by right clavicular prominence. At the 10-months follow-up, the patient had developed chronic thromboembolic pulmonary hypertension (CTEPH), and treatment was begun with a dual endothelin receptor antagonist. Very few cases of deep venous thrombosis of upper limb have been

Marta Ferrer Galván; Luis Jara Palomares; Candela Caballero Eraso; José Luis López Villalobos; Ángel Milla Salva; Remedios Otero Candelera

356

Efectos de la desigualdad del ingreso sobre el crecimiento económico: un análisis por entidad federativa para México  

Microsoft Academic Search

El objetivo de esta investigación es identificar cuál es el efecto final que la desigualdad del ingreso ejerce sobre el crecimiento económico en los estados de la República Mexicana. Para ello, se utiliza un panel de datos que comprende las 32 entidades federativas durante el período de 1984-1999. Se corren regresiones del modelo estándar que se utiliza en esta clase

Sergio Rios Santos

2003-01-01

357

Avaliação do comportamento eletroquímico de juntas soldadas de aço inoxidável supermartensítico por feixe de elétrons baixo vácuo.  

E-print Network

??The electrochemical evaluation of low vacuum electron beam weldments of supermartensitic stainless steel was carried out in terms of anodic polarization in potentiodynamic regime, intergranular… (more)

José Mario de Aquino

2007-01-01

358

AT&T: La red 4G LTE ms con able del pas Ms del 90 por ciento del trfico  

E-print Network

Tacoma Tri-Cities Walla Walla Yakima West Virginia Beckley Charleston Huntington Morgantown Oak Hill City­ Northern New Jersey­ Long Island (NY & NJ) Poughkeepsie Rochester Saratoga Springs Seneca Falls

Greenberg, Albert

359

RELACIÓN MICROESTRUCTURA RESISTENCIA AL DESGASTE DE RECUBRIMIENTOS DUROS RICOS EN CROMO Y TUNGSTENO APLICADOS POR SOLDADURA ELECTRICA (SMAW)  

Microsoft Academic Search

PALABRAS CLAVES: Recubrimientos duros, Carburos dispersos, Resistencia a la abrasión ABSTRACT: The microstructure and abrasive wear resistance of several hardfacing alloys were compared as a function of the chemical composition of the electrodes and the number of layers deposited onto ASTM A36 steel plates. High-Cr, low-Cr and high-W commercial electrodes were used, and the deposits were applied in one or

MARGARITA LEÓN SEVILLA; ALEJANDRO TORO

2004-01-01

360

Prevención de la Enfermedad Oral en Familias Desplazadas por la Violencia de la Comunidad de Nelson Mandela Cartagena Colombia  

Microsoft Academic Search

Introduction and Objective: The interventions with health promotion and prevention programs had been used in vulnerable communities, in order to reduce operative dentistry. The aim of the present study was to analyze the knowledge and application of health and illness concepts, in families displaced by violence. Materials and Methods: This project is based on a qualitative methodological focus, supported in

Farith González; Luis Carmona; Paula Campo

361

Diferencias por sexo en los criterios y estándares de productividad científica y docente en profesores funcionarios en España  

Microsoft Academic Search

El objetivo del presente trabajo es analizar las diferencias en la opinión que tienen los profesores y pro- fesoras universitarios españoles sobre los criterios y estándares de productividad científica, así como el número mínimo en éstos para ser acreditado como Profesor Titular de Universidad (PTU) o como Catedrático de Universidad (CU). Para ello se encuestó a una muestra de 960

Juan Carlos Sierra; Gualberto Buela-Casal; María Paz Bermúdez; Pablo Santos-Iglesias

2009-01-01

362

RELATO DE EXPERIÊNCIA: TERAPIA ASSISTIDA POR ANIMAIS (TAA) - MAIS UM RECURSO NA COMUNICAÇÃO ENTRE PACIENTE E ENFERMEIRO  

Microsoft Academic Search

This study consists of an experiment report after getting to know the benefits obtained through Animal Assisted Therapy in four health institutions of the city of São Paulo. The visits occurred in the second semester of 2001 in one place specialized in special education for children with diverse syndromes; one that houses old people who are abandoned or with no

Cíntia Hissae Kawakami; Cyntia Kaori Nakano

363

PROPUESTA DE MINOR La siguiente ficha de proposicin de minor ser evaluada por el Consejo de Escuela para su  

E-print Network

especialidad. En particular será capaz de: - usar e implementar algoritmos y estructuras de datos fundamentales CC3001 Algorimos y estructuras de datos 10 6 Cursos Electivos del Minor: Código Nombre de Curso cursos que componen el Minor: Código Nombre CC3001 Algoritmos y estructuras de datos Nombre en Inglés

Rapaport, Iván

364

PROPUESTA DE MINOR La siguiente ficha de proposicin de minor ser evaluada por el Consejo de Escuela para su  

E-print Network

algoritmos y estructuras de datos fundamentales - programar usando conceptos de orientación a objetos estructuras de datos 10 CC3002 Metodologías de programación y diseño 10 CC3301 Programación de software de que componen el Minor: Código Nombre CC3001 Algoritmos y estructuras de datos Nombre en Inglés

Rapaport, Iván

365

PROPUESTA DE MINOR La siguiente ficha de proposicin de minor ser evaluada por el Consejo de Escuela para su  

E-print Network

Unidades Docentes SCT CC3001 Algoritmos y Estructuras de Datos 10 6 1 Los Minors son parte de las 10 6 Estructuras de Datos Avanzados 10 6 Cursos Electivos del Minor: Área de Software de Sistemas cursos que componen el Minor: Código Nombre CC3001 Algoritmos y Estructuras de Datos Nombre en Inglés

Rapaport, Iván

366

Avaliação da aeração e edema pulmonar por meio de tomografia computadorizada em pacientes submetidos a revascularização do miocárdio.  

E-print Network

??Introduction: Hypoxemia is a frequent complication after coronary artery bypass graft (CABG) with cardiopulmonary bypass (CPB), usually attributed to atelectasis. Using computed tomography (CT), we… (more)

Roseny dos Reis Rodrigues

2010-01-01

367

Broncopneumonia causada por Arcanobacterium pyogenes em Veado Campeiro (Ozoteceros bezearticus). Bronchopneumonia caused by Arcanobacterium pyogenes in Pampas Deer (Ozoteceros bezearticus)  

Microsoft Academic Search

Arcanobacterium pyogenes is a commensal bacteria of the mucous membranes of the respiratory and genital tracts of a number of domestic and wildlife animal species. However, following a stress or traumatic insults, A. pyogenes can become an opportunistic pathogen, associated with suppurative infections. Stress is an important risk factor for disease in all animals but especially in wild animals unaccustomed

Joelma Lucioli; Fernando Henrique Furlan; Denis Augusto Spricigo; Sandra Maria Ferraz; Sandra Davi Traverso

368

Reconnaissance evaluation of Honduran geothermal sites. Una evaluacion por medio de reconocimiento de seis areas geotermicas en Honduras  

SciTech Connect

Six geothermal spring sites were selected on the basis of preliminary investigations conducted in Honduras over the last decade and were evaluated in terms of their development potential. Of the six, the Platanares and San Ignacio sites have high base temperatures and high surface fluid discharge rates and appear to have the best potential for further development as sources of electrical power. A third site, Azacualpa, has a high enough base temperature and discharge rate to be considered as a back-up, but the logistical problems involved in geophysical surveys make it less attractive than the two primary sites. Of the remaining three sites, Pavana may be a source of direct-use heat for local agricultural processing. Sambo Creek and El Olivar have either severe logistical problems that would impede further investigation and development or base temperatures and flow rates that are too low to warrant detailed investigation at this time.

Eppler, D.; Fakundiny, R.; Ritchie, A.

1986-12-01

369

LA CAPTURA INCIDENTAL DE LOS GRANDES ALBATROS (DIOMEDEA SPP.) POR LA FLOTA URUGUAYA DE PALANGRE PELÁGICO EN EL ATLÁNTICO SUDOCCIDENTAL  

Microsoft Academic Search

SUMMARY Commercial fishing with longline is currently one of the major threats facing the albatross stocks around the world. Four albatross species of the Diomedea genus are distributed in the southwestern Atlantic Ocean. These include two currently recognized species of Diomedea exulans sensu lato: the South Georgia stock of D. exulans and D. dabbenena of Gough Island. The two remaining

Sebastián Jiménez; Martín Abreu; Andrés Domingo

370

TENDENCIAS (/HOME/TENDENCIAS) Por Staff Domingo, 26 Enero, 2014 -14:20 TURBINA MS CHICA QUE UN CENTAVO LE  

E-print Network

/blogindio/medio-ambiente/staff/turbina-mas-chica-que-un-centa... #12;Relacionado (http://www.indio.com.mx/blogindio/medio-ambiente/staff/salchichas-baby-poop-tan-extremas- como-saludables) Salchichas 'baby poop'... tan extremas como saludables (/blogindio/medio-ambiente/staff/salchichas-baby-poop

Chiao, Jung-Chih

371

enero-marzo2007Cinvestav6 El pelo fue tomado de Beethoven por mi pap, el Dr.  

E-print Network

Nucleares (CERN). Estudia las aplicaciones de la física en la medicina y trabaja con algunas ideas de, atribuye su muerte a una probable Los aceleradores de partículas y la medicina Gerardo Herrera Corral LA

372

VIOLENCIA PERCIBIDA POR TRABAJADORES DE ATENCIÓN PRIMARIA DE SALUD PERCEIVED VIOLENCE BY WORKERS OF A PRIMARY HEALTH CARE CENTER  

Microsoft Academic Search

Cross-sectional descriptive and correlation research, whose general objective was to find out about the perception of the violence phenomena in a primary health care center, in a district of the VIII Region in Chile, from the perspective of different categories of health employees. The universe were 62 workers. Data were collected through the questionnaire of Paravic et al., that was

TATIANA PARAVIC KLIJN; SANDRA VALENZUELA SUAZO; MÓNICA BURGOS MORENO

373

Significados dos conceitos da termodinâmica e possíveis indicadores de invariantes operatórios apresentados por estudantes do ensino médio e técnico  

Microsoft Academic Search

This study aimed at finding out the level of conceptualization assigned by students to basic concepts of thermodynamics (temperature, heat, internal energy, work and entropy) and inferring possible indicators of operational invariants. The research was carried out through a questionnaire with 99 students from Fundação Escola Técnica Liberato Salzano Vieira da Cunha (a technical high school) in Novo Hamburgo, Brazil.

Edi Terezinha; Marco Antonio Moreira

374

Mercury Exposure and Health Impacts among Individuals in the Artisanal and Small-Scale Gold Mining Community: A Comprehensive Review  

PubMed Central

Background: Mercury (Hg) is used in gold mining to extract gold from ore by forming “amalgam”—a mixture composed of approximately equal parts mercury and gold. Approximately 15 million people, including approximately 3 million women and children, participate in artisanal small-scale gold mining (ASGM) in developing countries. Thirty-seven percent of global air emissions of Hg are produced by ASGM. The recently adopted Minamata Convention calls for nations to gather health data, train health-care workers, and raise awareness in regard to ASGM activity. Objective: The purpose of our review was to evaluate the current literature regarding the health effects of Hg among those working and/or living in or near ASGM communities. Methods: We searched PubMed, ScienceDirect, and Google Scholar for studies relating to health effects and biomarkers of Hg exposure in ASGM communities. Articles published from 1990 through December 2012 were evaluated for relevance. Discussion: Studies reporting health assessments, kidney dysfunction, neurological disorders and symptoms, and immunotoxicity/autoimmune dysfunction in individuals living in or near an ASGM community were identified. More than 60 studies that measured biomarkers of Hg exposure in individuals living in or near ASGM communities were also identified. These studies, conducted in 19 different countries in South America, Asia, and Africa, demonstrated that hair and urine concentrations are well above World Health Organization health guidance values in ASGM communities. Conclusions: ASGM workers and their families are exposed to Hg vapor, and workers, workers’ families, and residents of nearby and downstream communities are consuming fish heavily contaminated with methylmercury. Citation: Gibb H, O’Leary KG. 2014. Mercury exposure and health impacts among individuals in the artisanal and small-scale gold mining community: a comprehensive review. Environ Health Perspect 122:667–672;?http://dx.doi.org/10.1289/ehp.1307864 PMID:24682486

O'Leary, Keri Grace

2014-01-01

375

Actividad en la superficie lunar: fenómenos lunares transitorios  

NASA Astrophysics Data System (ADS)

Los fenómenos lunares transitorios que se presentan en la superficie de la Luna son raros, poco frecuentes y de corta duración, lo que origina que exista poca información al respecto. Esto hace evidente la importancia de estudiarlos con detalle. Han sido registrados como nubes muy brillantes a base de gases residuales de la pasada actividad geológica lunar, de diferentes colores (amarillas, anaranjadas, rojas), de acuerdo con el tiempo de duración cambian su color, con tamaños de pocos kilómetros hasta de centenares de kilómetros. Por lo general, se presentan en ciertos lugares, como cráteres (Aristarco, Plato, Kepler, etc.), y en los bordes de los mares lunares (mar de la Fecundidad, zona de los montes Alpes, etc.).Variando su tiempo de exposición puede ser de unos pocos segundos hasta un poco más de una hora.

Roa, A. F. C.

376

PROBLEMAS PARA A AULA PRATICA, SEMANA 14 Exercicio 1. Mostre que a func~ao definida por (u, v) = f(x, y) com  

E-print Network

) = f(x, y) com u = exy + 1 v = exy + y2 possui, numa bola Br(0, 1), uma inversa local de classe C1 . Sendo g(u, v) esta inversa, calcule g2 u no ponto (2, 2). Exerc´icio 2. Mostre que, numa vizinhan¸ca do) ) g(w) = 1 - eu-2v Mostre que a equa¸c~ao (g f)(x, y, z) = 0 define implicitamente numa vizinhan

Santos, João

377

Effect of Diesel Engine Converted to Sequential Por t Injection Compressed Natural Gas Engine on the Cylinder Pressure vs Crank Angle in Variation Engine Speeds  

Microsoft Academic Search

The diesel engine converted to compressed natural gas (CNG) engine effect is lower in performance. Problem statement : The hypothesis is that the lower performance of C NG engine is caused by the effect of lower in engine cylinder pr essure. Are the CNG engine is lower cylinder pressure than diesel engine? This research is condu cted to investigate the

Abdul Rahim Ismail

2009-01-01

378

Actividad antioxidante de la melatonina sobre el hígado graso inducido por etionina en ratones# Antioxidant activity of melatonin on fatty liver induced by ethionine in mice  

Microsoft Academic Search

SUMMARY The aim of this study was to determine the antioxidant activity of melatonin in female mice with ethionine-induced hepatic oxidative stress (HOS), and the effect of this hormone on the gluthatione peroxidase enzyme antioxidant activity. Twenty adult female NMRI mice were given intraperitoneally 3 mg\\/kg melatonin in 1% ethanol daily for 15 days, and 1% ethanol to the control

SM Ferraro; A López-Ortega

379

El consumo femenino de la imagen de la mujer en la publicidad. El sexismo en las campañas publicitarias rechazadas por la audiencia  

Microsoft Academic Search

This article presents the results of research into the perceptions and attitudes of women with regard to gender\\u000arepresentations in advertising discourse. This study is\\u000apart of a research project begun in 2005 on the subject of\\u000athe consumption of the image of women in advertising\\u000aand the media carried out by the Catalan Institute of\\u000aWomen (ICD) of the

Nuria García-Muñoz; Luisa Martínez

2008-01-01

380

ADIÇÃO DE FONTE DE CARBONO NO INÍCIO DA FASE ANÓXICA NA REMOÇÃO DE MACRONUTRIENTES E DQO POR LODO ATIVADO USANDO RBS NO TRATAMENTO DE ÁGUA RESIDUÁRIA AVÍCOLA  

Microsoft Academic Search

Several strategies of sequencing batch reactor operation were utilised to promote carbonaceous material and nutrients removal from poultry wastewater by activated sludge. The reactor started with 500 mL of sludge suspension or 500 mL of sludge suspension plus 1500 mL of raw wastewater, being fed up to 4 litres. The operation strategy that led to the best results was: initial

MAURO DE PAULA MOREIRA

381

Tratamiento del trastorno por déficit de atención con o sin hiperactividad en Atención Primaria: tratamiento farmacológico con metilfenidato y opciones no farmacológicas  

Microsoft Academic Search

The attention deficit disorder with or without hyperactivity (ADHD) offers a great cli- nical variability. Therefore, after a correct diagnosis and evaluation many different thera- peutic options can be considered, and reconsidered along its evolution, including precise information to families, up to complex intervention in multidisciplinary surroundings. Pharmacologic treatment is a very valid choice, alone or combined with other proce-

X. Txakartegi Etxebarria; M. Fernández Pérez

382

Efecto del metilfenidato sobre el sueño. Resultados de un estudio multicéntrico en una población infantil afecta de trastorno por déficit de atención e hiperactividad  

Microsoft Academic Search

IntroductionThe attention-deficit\\/hyperactivity disorder (ADHD) is the most common neuro-behavioural disorder in children and adolescents. Methylphenidate (MPH) is the drug most often used in the treatment of this disorder. It is important to know the effects methylphenidate can have on sleep due to the repercussions that insufficient sleep can have on the behaviour and cognitive function of children and adolescents.

M. Tomás Vila; M. Aleu Pérez-Gramunt; B. Beseler Soto; M. Benac Prefasi; J. Pantoja Martínez; I. Pitarch Castellano

2010-01-01

383

Producción preferente de IL8 por linfocitos T CLA+ circulantes con tropismo cutáneo en pacientes con psoriasis y en sujetos sanos  

Microsoft Academic Search

BackgroundPsoriasis is an immune-mediated disease typically associated with cutaneous neutrophilic infiltration and Munro microabscesses. Interleukin (IL)-8 is one of the main neutrophil-attracting chemokines. Although keratinocytes have traditionally been considered to be the principal source of IL-8 in psoriasis, we present data that suggest that cutaneous lymphocyte associated antigen (CLA)+ T lymphocytes synthesize this cytokine.

M. Ferran; A. B. Galván; A. Giménez-Arnau; R. M. Pujol; L. F. Santamaría-Babi

2010-01-01

384

Influência da substituição parcial de cimento por cinza ultrafina da casca de arroz com elevado teor de carbono nas propriedades do concreto  

Microsoft Academic Search

This paper describes the use of ultrafine rice husk ash with high-carbon content in ordinary and high-strength concretes. The influence of ultrafine ash (10, 15 and 20% of cement replacement, in mass) on rheology (yield stress and plastic viscosity), compressive strength (7, 28, 90, and 180 days) and rapid chloride-ion penetrability was investigated. In addition, two experiments were carried out

Guilherme Chagas Cordeiro; Eduardo de Moraes; Rego Fairbairn; Guilherme Chagas

385

Relación entre Condiciones de Suelo y Manejo de Huertas de Nogal Pecanero Carya illinoensis Koch con la Dinámica de la Pudrición Texana, causada por Phymatotrichum omnivorum Duggar  

Microsoft Academic Search

From 1995 to 1998, 26 plots of three ha each were selected in commercial walnut orchards. The objective of the survey was to relate the dynamics of Phymatotrichum root rot with orchard management and soil condition. The management variables were: age of the trees, plantation distance, trees\\/ha, pest management, number of irrigations and incidence of diseased trees (in 1995); for

José Alfredo Samaniego-Gaxiola; Teodoro Herrera-Pérez; Jesús Santamaría-César

2001-01-01

386

Análisis comparativo del VO 2máx estimado mediante las ecuaciones desarrolladas por Jackson et al y el American College of Sport Medicine en corredores de maratón  

Microsoft Academic Search

BackgroundReduced cardiorespiratory function is an independent risk factor for mortality by all causes, but mainly for coronary heart disease. Nevertheless, there are many difficulties in evaluating it by exercise testing in the epidemiological context. Alternative forms of evaluation have therefore been suggested using non-exercise regression models.

Robinson Ramírez Vélez; Ricardo Antonio Agredo Zuñiga; José Guillermo Ortega Ávila; Viviana Andrea Dosman González; Carlos Alejandro López Alban

2009-01-01

387

LA VEGETACI~N DE RIBERA DE LOS RÍOS ÉSERA Y CINCA EN EL TRAMO AFECTADO POR EL VACIADO DEL EMBALSE DE JOAQUIN COSTA  

Microsoft Academic Search

La Confederación Hidrográfica del Ebro detectó en 1993 la necesidad de llevar a cabo un proyecto de rehabilitación de los desagües de fondo del embalse de Joaquín Costa (Barasona). La justificación de esta actuación radicaba en la necesidad de reparar las compuertas de fondo de la presa (mecanismos de apertura y cierre) y de retirar los sedimentos acumulados en el

Jorge Alcázar; Isabel Ferrán

1998-01-01

388

Prevalencia de E. histolytica y E. dispar por Microscopía y ELISA en Muestras Fecales de una Población Urbano Marginal de Lima  

Microsoft Academic Search

RESUMEN OBJETIVOS: El propósito del presente estudio fue utilizar pruebas inmunoenzimáticas (ELISA) para estudiar la prevalencia de Entamoeba histolytica y Entamoeba dispar en una localidad urbano marginal de Lima (Callao). MATERIAL Y MÉTODOS: Se utilizaron dos ELISA: uno que detecta E. histolytica y E. dispar (ELISA Entamoeba), y otro que identifica específicamente a E. histolytica. RESULTADOS: Se obtuvieron aleatoriamente 128

WILLIAM CORNEJO; YRMA ESPINOZA; ALINA HUIZA; PILAR ALVA; ROXANA SUAREZ; CARLOS SEVILLA; CÉSAR NÁQUIRA

389

"Pig in a poke (gato por liebre)": the "mota" (Calophysus macropterus) fishery, molecular evidence of commercialization in Colombia and toxicological analyses.  

PubMed

Overfishing has affected the population abundance trends of many commercial fish species. In the Amazon, the fishery of a catfish commonly known as "mota" or "piracatinga" (Calophysus macropterus) has become an important economic activity in the region as this species has replaced a number of other overexploited great catfish species in the markets. Due to this high exploitation, ways in which to increase captures have been identified. One strategy is to use decomposing animal carcasses as bait. Such strategy has increased the hunting pressure on endangered species such as caimans and river dolphins. We investigated which catfish species are currently commercialized in Colombian fish markets using DNA barcoding, and measured mercury concentration in the tissues of fish molecularly identified as C. macropterus. We collected 86 fish samples in markets of four Colombian cities. Sixty-eight of these were identified molecularly as C.macropterus. The mercury concentration of 29 such samples was analyzed. Samples presented total Hg concentrations higher than the limit for human consumption established by the WHO (0.5 ?g/g). These results are worrisome and suggest that (1) C. macropterus is a widely used fish species for human consumption in Colombia and (2) C. macropterus has high concentrations of total Hg, making its consumption a public health risk. Results presented here suggest that C. macropterus has replaced capaz in most Colombian markets. This fishery threatens wild species of river dolphins and caimans, and is also a public health risk given the high mercury levels we found in a subsample of these fishes. PMID:24419666

Salinas, Cristian; Cubillos, Juan Camilo; Gómez, Rigoberto; Trujillo, Fernando; Caballero, Susana

2014-06-01

390

ATIVIDADES DE ELABORAÇÃO CONCEITUAL POR ESTUDANTES NA SALA DE AULA DE FÍSICA NA EJA STUDENTS' CONCEPTUAL ACTIVITIES IN ADULT EDUCATION PHYSICS CLASSROOM  

Microsoft Academic Search

In this paper we shall analyze a conceptual activity elaborated by adults in a physics classroom context, related to Newton First Law of Movement. Data comes from writing activities carried by the students, in which they argue about the possibility of Earth movement by using the concepts of inertia and relative movement. The analysis, founded in Bakhtin's Philosophy of Language,

Erico Tadeu; Fraga Freitas; Orlando Aguiar Jr

391

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

National Technical Information Service (NTIS)

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

J. L. Gonzalez Guadarrama

1992-01-01

392

INTEGRACIÓN DE UN MODELO DIGITAL DEL TERRENO EN UN S.I.G. PARA EL ESTUDIO DE LA DISPERSIÓN Y DISMINUCIÓN DEL RUIDO GENERADO POR TRANSPORTES  

Microsoft Academic Search

The present study addresses the problem of how to quantify, evaluate and represent noise pollution within a defined area. The necessity for doing so has provided a new method efficient, inexpensive and easily comprehensible to all people about environmental noise conditions and their evaluation. The geographical area evaluated is the city of Bilbao. It is situated in the north of

Javier Pueyo Echevarría; José García López; Carlos Larraz Duerto

393

Realidades Suburbanas: Latinos en el Condado de Dakota. Una Investigacion Dirigida por HACER = Suburban Realities: Latinos in Dakota County. A Study Conducted by HACER.  

ERIC Educational Resources Information Center

A research project was conducted between April and December of 1998 to learn about the experiences of the sizable numbers of Latinos who live in Dakota County (Minnesota). This diverse group was studied through examining existing demographic information, conducting interviews with 45 Latino and Anglo individuals, and conducting several focus…

HACER: Hispanic Advocacy and Community Empowerment through Research, Minneapolis, MN.

394

Compósitos de Polipirrol e Li1,05Mn2O4 : preparação por dip coating ou casting e caracterização eletroquímica.  

E-print Network

??Films of polypyrrole/Li1.05Mn2O4 composites were prepared by chemical synthesis over a carbon-fiber substrate, using the dipcoating and casting techniques, aiming at improving the performance of… (more)

Ricardo Francisco Brocenschi

2009-01-01

395

ESTIMATIVAS DA AREA DE ATRAC~AO DE SISTEMAS N~AO LINEARES COM INCERTEZAS VARIANTES NO TEMPO POR MEIO DE UMA CLASSE DE  

E-print Network

on the mean value theorem in conjunction to an approximation technique of convex sets to obtain this LDI differential inclusions, linear matrix inequalities Resumo-- Este artigo prop~oe utilizar uma classe particular forma de inclus~oes diferenciais lineares ou LDIs (do ingl^es, linear differential in- clusions), sendo

Pota, Himanshu Roy

396

Avaliação da qualidade dos registros de enfermagem no prontuário por meio da auditoria Evaluation of the quality of nursing documentation though the review of patient medical records  

Microsoft Academic Search

Objective: To evaluate the quality of nursing documentation on medical records of patients from a university hospital in São Paulo, Brazil. Methods: A retrospective descriptive study was used to conduct the study. Four hundred and twenty four medical records of patients from medical and surgical units were reviewed from November 2006 to January 2007. The medical records were from patients

Vanessa Grespan Setz; Maria D'Innocenzo

2009-01-01

397

Evaluación endoscópica de hemorragia pulmonar inducida por el ejercicio en equinos de polo Endoscopic evaluation of Exercise Induced Pulmonary Hemorrhage in Polo Ponies  

Microsoft Academic Search

SUMMARY The objective of the present study was to determine the presence of Exercise Induced Pulmonary Hemorrhage (EIPH) by endoscopic examination in polo ponie after competition. Thirty nine polo horses in training were used in this study. The animal were classified by the number of polo seasons they had played (two seasons and three or more) and by sex independently

G. MORAN; R. CARRILLO; B. CAMPOS; C. GARCIA; Olivares N

2003-01-01

398

Epidemiologia dos traumatismos buco-maxilo-faciais por agressões em Aracaju\\/SE Epidemiology of oral and maxillofacial injuries by aggression in Aracaju\\/SE  

Microsoft Academic Search

This paper was based on a prospective, cross-sectional and observational study for the purpose of analyzing the characteristics of maxillofacial injuries due to aggression in the Emergency Hospital of Sergipe (HUSE). A total of 106 patients were treated, the statistical analysis demonstrating a prevalence of male (69.,4%), brown-skinned i (52.,7%) individuals, with a predominance of the 21-30 years age group

Joanes Silva Santos; Bernardo Ferreira Brasileiro; Thiago de Santana Santos

399

Resolucin de 24 de mayo de 2007 del Vicerrectorado de Relaciones Internacionales y Cooperacin de la Universidad de Alicante, por la que se publica la lista definitiva de  

E-print Network

Gutiérrez Roger BECA 3: Doctorado en Electroquímica. Ciencia y Tecnología. Apellidos Nombre Armenise Gil Antonio Suarez Suarez Lady Yesenia Torreblanca Gonzales Renzo Emmanuel Uribe Acosta Carolina Mercedes BECA

Escolano, Francisco

400

Communicating with Mexican Americans: Por Su Buena Salud = Communicando Con Mexico Americanos: For Their Good Health. Proceedings of the Conference (Houston, TX, September 13-14, 1979).  

ERIC Educational Resources Information Center

The conference focused on the role of the Mexican American's cultural language, tradition, life style, health practices, and media utilization in the design of effective health education and information programs. Representing various local, state, and national health, education, and media organizations, the 108 participants attended sessions on…

Moore, Thomas J., Ed.; And Others

401

Estudo Experimental da Produção de Sorbitol por Zymomonas mobilis em Altas Concentrações de Sacarose Experimental Study of Sorbitol Production by Zymomonas mobilis in High Sucrose Concentration  

Microsoft Academic Search

The sorbitol presents several industrial applications and its conventional production is of high cost and low yield. Sorbitol production by Zymomonas mobilis production has attracted attention as both production cost and environmental impact are low. The sorbitol plays an osmo-protective rule so that its production is promoted by high sugar concentrations. This work has evaluated the effect of high sucrose

Batista Buzato; Rui Sérgio; Santos Ferreira da Silva

402

Report of a human accident caused by Conus regius (Gastropoda, Conidae) Relato de um acidente em ser humano causado por Conus regius (Gastropoda, Conidae)  

Microsoft Academic Search

Conus regius is a venomous mollusc in the Conidae family, which includes species responsible for severe or even fatal accidents affecting human beings. This is the first report on a clinical case involving this species. It consisted a puncture in the right hand of a diver who presented paresthesia and movement difficulty in the whole limb. The manifestations disappeared after

Vidal Haddad Junior; Marcus Coltro; Luiz Ricardo; L. Simone

403

La Convencin sobre el Comercio Internacional de Especies Amenazadas de Fauna y Flora Silvestres (CITES, por sus siglas en ingls) es un acuerdo internacional firmado  

E-print Network

garantizar que el comercio internacional de animales y plantas silvestres no amenaza su supervivencia en la naturaleza. Los animales o plantas enumerados en CITES que son tomados de alta mar ­ definida como «el

404

Inhibition of Salmonella spp. isolated from mango using bacteriocin-like produced by lactobacilli Inhibición de Salmonella spp. aislada de mango usando sustancias tipo bacteriocinas producidas por lactobacilos  

Microsoft Academic Search

Five mangos from every step of the packaging process of mango as well as five samples from tap water and five samples from dip tank water were analyzed for Salmonella. Four presumptive Salmonella spp. strains were isolated from mango fruits and from water used for its washing. When identification of the strains was performed by PCR, only three strains turned

J. A. Ragazzo-Sanchez; L. Sanchez-Prado; P. Gutiérrez-Martínez; G. Luna-Solano; B. Gomez-Gil; M. Calderon-Santoyo

2009-01-01

405

Informações sobre substâncias psicoativas por telefone: análise de dez anos de atividades Telephone drug information service: analysis of ten years of activity  

Microsoft Academic Search

SINOPSE Objetivos: As consultas telefônicas feitas ao Serviço de Informações sobre Substân- cias Psicoativas de Porto Alegre (SISP), no período compreendido entre 1990 e 1999, foram analisadas, objetivando-se descrever características dos usuários e analisar os mo- tivos que os levaram a procurar o serviço. Métodos: Dados como o enfoque da pergunta, a droga envolvida, a duração do aten- dimento, a

Maristela Ferigolo

406

TEREMOS QUE TROCAR ENERGIA POR COMIDA? ANÁLISE DO IMPACTO DA EXPANSÃO DA PRODUÇÃO DE CANA-DE-AÇÚCAR SOBRE O PREÇO DA TERRA E DOS ALIMENTOS  

Microsoft Academic Search

O trabalho discute os principais argumentos contrários a expansão da produção de cana-de-açúcar no país, sobretudo para produção de etanol. Mais especificamente, um dos obstáculos à expansão da produção desta commodity diz respeito ao seu potencial impacto sobre o preço da terra e, conseqüentemente, sobre os preços dos alimentos. Os defensores deste ponto de vista argumentam que a pressão sobre

Andre Luiz Squarize Chagas; André Luis Squarize Chagas

2008-01-01

407

Marcadores biológicos de estrés oxidativo. Distribución por edad y sexo de las concentraciones basales de MDA, NO y ácido úrico en niños y adolescentes de Maracaibo-Venezuela  

Microsoft Academic Search

Despite recognition of the detrimental effects of malondial- dehyde (MDA), nitric oxide (NO) and uric acid on oxidative stress, this hypothesis has not yet been tested in healthy chil- dren and adolescents. The objective of the present study was to describe the behavior of these parameters, in a sample of healthy children and adolescents from Maracaibo, Zulia State, Venezuela. After

Souki A; Cano C; Mengual E; García D; Torres D; Almarza J; León L; Chávez Z; Molero E; Medina M; Félix Gómez

2007-01-01

408

Brazilian study on substance misuse in adolescents: associated factors and adherence to treatment Estudo brasileiro sobre abuso de substâncias por adolescentes: fatores associados e adesão ao tratamento  

Microsoft Academic Search

Objectives: To investigate developmental and environmental factors associated to substance misuse in adolescents seen at a university day-hospital in Brazil and to verify the correlations between those factors and adherence to treatment. To compare factors associated to substance misuse in adolescents with the available scientific literature and to suggest specific preventive interventions for a national policy in Brazil. Methods: Eighty-six

Vilma A da Silva; Aline S de Aguiar; Felippe Felix; Gabrielle P Rebello; Helcio F Mattos

409

Órteses em PVC para membro superior: utilização por terapeutas ocupacionais brasileiros, propriedades físicomecânicas e de toxicidade e desempenhos funcional e mioelétrico.  

E-print Network

??As órteses são dispositivos que tem como função, estabilizar, imobilizar, prevenir e corrigir deformidades e maximizar a função e atualmente são confeccionadas em termoplásticos, especialmente… (more)

Larissa Galvão da Silva

2013-01-01

410

RECUPERACIÓN DE RESERVAS CONFINADAS POR ALTA PRESIÓN Y GASTO DE AGUA INVIRTIENDO EN UN NUEVO CONCEPTO DE BOMBEO Y USO FINAL DEL AGUA  

Microsoft Academic Search

Water in the San Antonio Mine stays inside bulk packages of limestone that belong to the rock formation named Glen Rose, which have displayed porosity and secondary permeability caused by physical (tectonics) and chemical phenomena that have caused fault lines, fractures and caves respectfully in the rock, giving rise to a huge natural aquifer, but which is too complicated in

LUIS MOLINAR OLIVAS

411

Reservorios y vías de transmisión de la infección por Helicobacter pylori Reservoirs and means of transmission of the infection by Helicobacter pylori  

Microsoft Academic Search

Infection by Helicobacter pylori is responsible for the majority of gastroduodenal pathologies. The person- person type of transmission, whether oral-oral or faecal- oral, is well documented, and there is speculation regar- ding the vectors of transmission of a zoonotic type (flies, cats...) and of an environmental type (water) that would in their turn act as reservoirs of the infection. The

T. Parra; F. Carballo

412

Atividades melanogÃnica, genotÃxica e antiproliferativa de extratos de Brosimum gaudichaudii TrÃcul e Dorstenia brasiliensis Lam induzidas por radiaÃÃo UVA.  

E-print Network

??As furanocumarinas lineares ou psoralenos sÃo fotossensibilizadores empregados na dermatologia associados a ultravioleta A no tratamento de doenÃas como o vitiligo. A fotoquimioterapia tem reaÃÃes… (more)

Adriana Elias Pires Quevedo

2011-01-01

413

EL FENÓMENO DE «EL NIÑO» ORIGINADO POR LA DESCOMPRESIÓN ENERGÉTICA DE LA TIERRA «EL NIÑO» PHENOMENON'S ORIGIN FOR ENERGETIC DECOMPRESSION THE EARTH  

Microsoft Academic Search

The following is a theorical yet exploratory and descriptive study, on which it is sustained that the Sun's additional energy provided from the Earth's core produces «El Niño» phenomenon trough energetic decompression through the weakest zones or Subduction zones of the Pacific Ocean's, Ring of Fire. That, depends on: The Earth's interior dynamic, plate tectonics, energetic antipodes and the Earth's

Honorio Campoblanco Díaz; Julia Gomero Torres

414

Fundamentos del rechazo a la transfusión sanguínea por los Testigos de Jehová. Aspectos ético-legales y consideraciones anestésicas en su tratamiento  

Microsoft Academic Search

Summary The refusal of Jehovah's Witnesses to agree to blood or blood product transfusion based on religious beliefs is one of the most challenging conflictive issues health care givers have to face today. Such conflict is a by product of the ideological and religious diversity in society today. The perioperative care of such patients constitutes a genuine challenge for anesthesiologists

A. Pérez Ferrer; E. Gredilla; J. de Vicente; J. García Fernández; F. Reinoso Barbero

415

Library Safari: Tips for Parents of Young Readers and Explorers = De safari por la biblioteca: Consejos para padres de lectores y exploradores jovenes.  

ERIC Educational Resources Information Center

Visiting the library is a great way for parents to encourage their child's imagination and learning. It gives parents the opportunity to model good reading behavior and to show their child that they value books and reading. No matter how young the child is, a trip to the library can be an enjoyable outing for parents and their children. Most…

Clements, Aedin

416

Potencial forrajero del pasto salado Distichlis spicata L. (Greene) en ecosistemas costeros de Baja California Sur, México por el método de \\  

Microsoft Academic Search

Forage potential of the non-domesticated saltgrass Distichlis spicata (Gramineae) was determined by analyzing its chemical and productive variables using principal components analysis (PCA). Plants were collected from five sites amongst three locations, in areas including wetlands shores, centers, and beach. The results suggested that D. spicata is a rough, poorly digested forage, as explained by the statistical significance of the

Arturo Escobar-Hernándezab; Enrique Troyo-Dieguez; José Luis García-Hernández; Hugo Hernández-Contreras; Bernardo Murillo-Amador; Raúl López-Aguilar

417

CONSIDERACIONES SOBRE EL SEX-RATIO DE PATUDO (Thunnus obesus) EN EL ATLÁNTICO ESTE TROPICAL, CAPTURADO POR LA FLOTA DE CERCO  

Microsoft Academic Search

SUMMARY In 2001 and 2002 a series of samplings of bigeye tuna were made at the canning factories at the port of Abidjan. The objective is to carry out a study on sex ratio. A total of 202 individuals were sampled and the problems encountered during the sampling are discussed. RÉSUMÉ

Sarralde Roberto; Bard F. Xavier

418

Pesca del bacalao de profundidad (Dissostichus eleginoides), efectuada por la flota chilena en torno a la isla Georgia del Sur (1991\\/1992)  

Microsoft Academic Search

This study analyses fisheries activities carried out for the first time by the Chilean longline fishery targeting the Patagonian toothfish (Dissostichus eleginoides) in the Convention for the Conservation of the Antarctic Marine Living Resources (CCAMLR) Statistical Subarea 48.3 (South Georgia Island). From the end of December 1991 until the closing of the fishery on the 10th March 1992, the fleet

PATRICIO ARANA

419

Utilidad de la tomografía por emisión de positrones en la detección de metástasis ocultas extratorácicas en el carcinoma broncogénico no células pequeñas  

Microsoft Academic Search

IntroductionPositron emission tomography combined with computed axial tomography (PET\\/CT) is used for staging non small cell lung cancer (NSCLC). This study aims to describe PET\\/CT findings of unsuspected extrathoracic metastasis when used in mediastinal evaluation of patients with apparently resectable NSCLC.

Rodrigo Alonso Moralejo; Javier Sayas Catalán; Ricardo García Luján; Mónica Coronado Poggio; Eduard Monsó Molas; Ángel López Encuentra

2010-01-01

420

Construcci\\'on de un reactor de nitruraci\\'on por plasma y simulaci\\'on de la distribuci\\'on de temperaturas  

E-print Network

Ion nitriding and ion carburising by plasma discharges are promising techniques in order to modify the surface of austenitic steels. Plasma treatments improve mechanical properties, e.g., hardness and wear resistance. Indeed, these techniques do not change the natural austenitic properties, like corrosion resistance. Hidden parameters of the system are very important in order to do a good characterization and a good experimental reproducibility. In this work a new cathode design has been done and it is placed in a new plasma reactor. The electric field edge effect has been discarded in the austenitic samples thanks to a special lodging procedure. After an experimental validation of this new set-up, a numerical simulation has been carried out. Temperature distribution has been analyzed using the cathode-molecular nitrogen collision method. Under these assumptions, reactor cooling is a key issue. This simulation has been done after the resolution of the Laplace equation with the parallel Jacobi method. Finally,...

Molleja, Javier García; Feugeas, Jorge

2014-01-01

421

Del 29 de Junio al 13 de Julio de 2012 Curso ONLINE (convalidable* por 2 crditos de Libre eleccin). 50 horas.  

E-print Network

Campus Virtual de la UA y software Photoshop. Para realizar el curso es imprescindible disponer de una versión de Photoshop CS2 o superior. Evaluación mediante entrega de ejercicios con Photoshop. Nivel: medio ­ alto. (El/la alumno/a debe poseer nociones básicas de Photoshop). Temario: 1. Introducción. 2. Gestión

Escolano, Francisco

422

Comparacion de modelos de Educacion Sexual en el conocimiento y cambio de actitudes en practicas sexuales por alumnos de nivel superior en la region de Caguas, Puerto Rico  

NASA Astrophysics Data System (ADS)

In opposition to the Sexual Education Traditional Model (SETM) that is used in the state schools of Puerto Rico, the Health Beliefs Model (HBM) appears. It facilitates a curricular design that improves the ability of the students to respond to the group pressure by means of attitudes that stimulate sexual conducts of smaller risk of propagation of the Sexually Transmitted Diseases (STD). In addition, it provides activities to increase the self-esteem, the communication and the decision making. This investigation had the intention to compare the SETM and the HBM in the increase of knowledge and change of attitudes of high risk of propagation of the STD using a validated questionnaire (Agency of the United States for the International-USAID Development), named "Endesa 2007" and, adapted to Puerto Rico by the Dra.Marta Collazo to a sample of students between the 17 and 19 years of 2 state schools of San Lorenzo, as a pretest, and, selected by convenience. Then, a 10 hours training was administered to half of the students using the SETM to STD and condom use lessons. The other half of the students received additional lessons using the HBM. Finally, both groups took the questionnaire again as a posttest. The sample of students, in average, did not reach the knowledge and basic levels of attitudes towards the STD in the pretest. This reflected 2 possible implications on the SETM. In first place, that the way in which the STD is implemented as part of the Sexual Education curriculum is inefficient. Secondly, the possibility that the acquired information or attitudes does not have permanence. Culminated the questionnaire, the HBM increase the knowledge of the STD in 0.41 points (average) over the SETM. There was not a significant difference between both models, in attitudes, implying that both models are equally effective. The findings suggests that the HBM is more effective increasing the knowledge on the STD, but equally effective than the SETM in attitude change for the Puerto Rican youth.

Juan, Vallejo Ramos L.

423

HOMEOPATIA NA TERAPIA DE ANIMAIS DE LABORATÓRIO NATURALMENTE INFECTADOS POR COCCÍDEOS Homeopathy in the therapy of laboratory animals naturally infected by coccidea  

Microsoft Academic Search

This study aimed to evaluate the anticoccidian action of a homeopathic complex including Allium sativum, Carduus marianus and Arsenicum album in mice and rats naturally infected. Twenty mice (Mus musculus) and 12 rats (Rattus norvergicus) infected by coccidea were evaluated. The control groups and the medicated groups of each species with the homeopathic complex at a dose of 100 drops\\/liter

Aleksandro Schafer da Silva; Claudia Dal; Molin Soares; Gabriela Pesamosca Coradini; Camila Belmonte Oliveira; Régis Adriel Zanette; Angélika Sharom; Silvia Gonzalez Monteiro

2007-01-01

424

Grupos españoles de cálculos ab initio de moléculas de interés astrofísico  

NASA Astrophysics Data System (ADS)

Pocos campos de la química están tan bien adaptados a la modelización por medio de los métodos teóricos de la Química Cuántica como la Astroquímica y la Química de la Atmósfera, donde las interacciones moleculares son, generalmente, lo suficientemente pequeñas para que el modelo de molécula aislada funcione muy bien. En España son varios los grupos teóricos que dedican su esfuerzo de investigación, o parte de él, al estudio de moléculas o procesos de interés en Astrofísica o en atmósferas planetarias. Presentaremos diferentes ejemplos paradigmáticos de esta actividad en la que se exploran desde aspectos estructurales, hasta aspectos espectroscópicos y dinámicos. Entre los últimos, cabe destacar estudios en los que se demuestra la importancia de procesos a dos estados, prohibidos por espín, en la formación astrofísica de diversos derivados de interés. En el tratamiento espectroscópico se han hecho esfuerzos interesantes, que han aunado teoría y experimento, en el estudio de sistemas relevantes desde el punto de vista atmosférico, como los hidratos de ácido nítrico, o el tratamiento espectroscópico de moléculas no rígidas. No menos interesantes son los estudios de fotoabsorción de radicales o de procesos multifotónicos. Son particularmente abundantes los estudios dedicados a la reactividad específica de sistemas de interés astrofísico o atmosférico, con el objetivo de esclarecer vías de formación de determinados compuestos o de proporcionar mecanismos que permitan identificar las etapas reactivas limitantes de reacciones de interés en esos medios y sobre los que no existía información previa. Así, por ejemplo, se han publicado interesantes estudios sobre la formación o propiedades de compuestos de fósforo, de silico o de azufre o sobre mecanismos de reacción en los que intervienen el ozono, el radical nitrato, el radical OH u otras especies. Finalmente, son también particularmente relevantes los estudios que varios grupos españoles han llevado, y siguen llevando a cabo, sobre sistemas débilmente enlazados, como complejos de Van der Waals o complejos por enlace de hidrógeno, que sin duda juegan un papel importante tanto en medios atmosféricos como interestelares.

Yáñez, M.

425

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

NASA Astrophysics Data System (ADS)

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

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

2003-08-01

426

Variación espacial y temporal de la composición por tallas y sexos del gatuso Mustelus schmitti Springer, 1939 capturado por la pesca de arrastre en la costa oceánica uruguaya durante 2004 Spatial and temporal variation of length and sex composition of the narrownose smooth-hound Mustelus schmitti Springer, 1939 in the trawl fishery off the oceanic coast of Uruguay during 2004  

Microsoft Academic Search

This study analyses the seasonal fisheries and sexual proportion of the narrownose smooth-hound Mustelus schmitti from the Uruguayan oceanic coast. The maximum catches took place during the fall. Of a total of 2105 individuals, 1483 were males and 622 females, being females larger than males. Females were dominant at maximum depths of 50 m (inner shelf), whereas males occupied major

Inés Pereyra; Luis Orlando; Walter Norbis; Laura Paesch

427

Evaluation of antibacterial activity on different solvent extracts of Euphorbia caracasana Boiss and Euphorbia cotinifolia L. (Euphorbiaceae) collected in Venezuela (Evaluación de la actividad antibacteriana en extractos de diferentes solventes de Euphorbia caracasana Boiss y Euphorbia cotinifolia L. (Euphorbiaceae) recolectadas en Venezuela)  

Microsoft Academic Search

In the present investigation the evaluation of the antibacterial activity of Euphorbia caracasana Boiss and Euphorbia cotinifolia L. has been evaluated against Gram positive and Gram negative bacteria using the disc diffusion agar method. E. caracasana and E. cotinifolia leaves were extracted with isopropyl alcohol. These extracts, after concentration, were fractionated by column chromatography and selected fractions, based on their

Janne ROJAS; Judith VELASCO; Antonio MORALES; Tulia DÍAZ; Gina MECCIA

2008-01-01

428

B8. RESPUESTA DE GYPSOPHILA (Gypsophila paniculata var. Bambino) A LA INYECCIÓN DE CO 2 EN SUS DIFERENTES FASES FENOLÓGICAS. GUAYLLABAMBA, PICHINCHA*. RESPONSE OF GYPSOPHILA (Gypsophila paniculata var. Bambino) TO THE INJECTION OF CO 2 IN DIFFERENT PHENOLOGIC PHASES. GUAYLLABAMBA, PICHINCHA  

Microsoft Academic Search

con cuatro repeticiones. La unidad experimental net a fue 20m 2 (20mx1m). Las variables evaluadas fueron: Incremento de altura y diámetro, número de brotes, producción de tallos, peso de tallos en verde, determinación de m ateria seca, peso de tallos en blanca, número de días de apertura de flor, número de días en florero y análisis económico. El tratamiento que

429

Deriving sediment quality guidelines in the Guadalquivir estuary associated with the Aznalcóllar mining spill: A comparison of different approaches Obtención de guías de calidad de sedimento en el estuario del Guadalquivir asociadas con el vertido minero de Aznalcóllar: Una comparación de diferentes métodos  

Microsoft Academic Search

Concentrations of heavy metals (Fe, Zn, Cd, Pb, Cu and Mn) and sediment toxicity tests (mortality of amphipods, Ampelisca brevicornis, of clams, Scrobicularia plana, and of fish, Solea senegalensis) were used to derive sediment quality guidelines (SQGs). The approaches are based on the determination of LC50, on the application of a multivariate analysis (MAA), and on the Threshold Effect Level

I. Riba; V. Zitko; J. M. Forja; T. A. DelValls

2003-01-01

430

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

431

Nanoparticulas basadas en complejos de Fe(II) con transicion de espin: sintesis, caracterizacion y aplicaciones en electronica molecular  

NASA Astrophysics Data System (ADS)

Esta tesis doctoral esta organizada en 5 capitulos y esta destinada al estudio de sistemas de Fe (II) que presentan el fenomeno de la transicion de espin a escala nanometrica. El capitulo 1 contiene una introduccion general sobre materiales moleculares multifuncionales, destacando aquellos ejemplos mas importantes. Por otro lado, se explicara el fenomeno de la transicion de espin, tratando aspectos conceptuales, los antecedentes mas importantes y la situacion actual. En el capitulo 2 se describen los diferentes procesos existentes para la obtencion de diferentes tipos de nanoparticulas. Ademas, se presenta la sintesis y caracterizacion de nanoparticulas del polimero de coordinacion unidimensional [Fe(Htrz)2(trz)]BF4, obtenidas mediante el metodo de micelas inversas. Estas nanoparticulas, con una estrecha distribucion de tamanos centrada alrededor de los 11 nm, presentan una transicion de espin muy abrupta, con un ancho ciclo de histeresis termica de unos 40K. En el capitulo 3 se describe el proceso de modificacion del tamano de las nanoparticulas descritas en el capitulo anterior, llevado a cabo variando la proporcion de surfactante/H2O en el medio. Ademas, con el objetivo de modificar las propiedades magneticas de las nanoparticulas obtenidas en el capitulo 2, se lleva a cabo la sintesis de nanoparticulas de polimeros de la misma familia del [Fe(Htrz)2(trz)]BF4. En concreto se sintetizaron 3 nuevos tipos de nanoparticulas basadas en el polimero [Fe(Htrz)1-x(NH2trz)x](ClO4)2, siendo x = 0.05, 0.15 y 0.3, en cada caso. Estas nanoparticulas siguen presentando una estrecha distribucion de tamanos y una transicion de espin muy abrupta y con un ancho ciclo de histeresis. Ademas, se observa que este ciclo se desplaza a temperaturas mas proximas a la temperatura ambiente a medida que se aumenta el porcentaje de 4-amino-1, 2, 4- triazol en la muestra. Pero al mismo tiempo se produce una disminucion de la anchura de este ciclo. Por ultimo, en este capitulo se presenta la sintesis de otro nuevo tipo de nanoparticulas, obtenidas a partir de otro polimero de la misma familia, el [FeO8ZnO2(Htrz)3](BF4). Estas nanoparticulas se sintetizaron con el objetivo de estudiar el efecto de la dilucion del metal en la muestra. Como resultado se obtuvieron nanoparticulas que tambien presentan una estrecha distribucion de tamanos pero en este caso la transicion de espin no es tan abrupta como en los casos anteriores. Aunque sigue presentando un ciclo de histeresis termica bastante ancho y a temperaturas proximas a la temperatura ambiente. En el capitulo 4 se describiran las estrategias que se han seguido para mejorar la estabilidad y afinidad sobre diferentes sustratos de las nanoparticulas sintetizadas en el capitulo 2. Tambien se hablara de los intentos realizados parar depositarlas en superficies y embeberlas en diferentes matrices organicas e inorganicas. En el capitulo 5 presentaremos la obtencion de un interruptor molecular realizado poniendo en contacto nanoparticulas individuales sintetizadas en el capitulo 2, con unos electrodos separados varios nanometros. Este dispositivo exhibe "switching" y efecto memoria a temperaturas proximas a la temperatura ambiente como consecuencia de la biestabilidad intrinseca de las nanoparticulas. Ademas demostraremos que el estado magnetico de estas nanoparticulas puede ser controlado electricamente, ya que la transicion de espin en este nanodispositivo molecular puede ser inducida simplemente aplicando un voltaje, lo que puede ser de gran interes para la electronica molecular.

Monrabal Capilla, Maria

432

The Latinas' Guide to the Information Superhighway: A Bilingual Guide for Latinas by Latinas = Guia para Mujeres Latinas sobre la Supercarretera de la Informacion: Una Guia Bilingue para Latinas por medio de Latinas.  

ERIC Educational Resources Information Center

This guide to the Internet is designed to give Latinas basic information on computers and the information superhighway. Written in both Spanish and English, the guide begins by defining the Internet and making some suggestions about acquiring access to a computer. Among the topics discussed are how to choose an Internet service provider, how to…

MANA, A National Latina Organization, Washington, DC.

433

Comparación de las pruebas quantitative buffy coat, frotis grueso de sangre y observación directa para el diagnóstico de la infección por Dirofilaria immitis en perros de tres zonas geográficas de México  

Microsoft Academic Search

The objective of this study was to compare three diagnostic tests: the quantitative buffy coat (QBC) analysis, thick blood smear (TBS) and direct observation (DO) to detect canine Dirofilaria immitis infection. Ninety four blood samples were taken from stray dogs from three states of Mexico (48 from Mexico City, 31 from the State of Puebla, and 15 from the State

Carlos Ramón; Bautista Garfias; Manuel Arroyo Rojas; Oscar Velasco Castrejón; Ligia Canto Ortiz

2001-01-01

434

Strain and slackness of achilles tendon during passive joint mobilization via imaging ultrasonography Deformação relativa e frouxidão do tendão calcanear durante mobilização articular passiva através de ultra-sonografi a por imagem  

Microsoft Academic Search

Background: In vivo study of the mechanical behavior of tendons may bring advances in evaluating the impact of intervention programs for fl exibility and strength, in clinical practice and sports. Objective: The aim of this study was to quantify the relative strain and slackness of achilles tendons during passive mobilization, for four ankle joint angles and two knee angles. Methods:

Peixinho CC; Alves DS; Lacerda RG; Vieira TMM; Oliveira LF

435

Concepções dos cuidados em saúde mental por uma equipe de saúde da família, em perspectiva histórico-cultural The concept of mental care of a family health team from a historical-cultural perspective  

Microsoft Academic Search

The present study aims at analyzing the individual senses and social meanings of mental care actions carried out by professionals working in a Family Health Care Team. The study is based on Vigotsky's (1896-1934) theoretical perspective of a historical and cultural psychology. The work is part of a participant research and as such conducted in the context of a field

Marcelo Dalla Vecchia; Sueli Terezinha Ferreira Martins

436

EFECTOS FARMACOLÓGICOS SOBRE EL SISTEMA NERVIOSO CENTRAL INDUCIDOS POR CUMARINA, AISLADA DE Hygrophila tyttha LEONARD PHARMACOLOGICAL EFFECTS ON THE CENTRAL NERVOUS SYSTEM INDUCED BY COUMARIN, ISOLATED FROM Hygrophila tyttha LEONARD  

Microsoft Academic Search

This study shows the isolation, identification and pharmacological profile on the central nervous system induced by coumarin (1-2 benzpyrone), molecule obtained from Hygrophila tyttha Leonard (Acanthaceae. Vulgar name:: \\

Sandra Y. ARIZA; Diana C. RUEDA; Edgar L. LINARES; Mario F. GUERRERO

437

Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

tras dejar el puesto; y algunos casos de reciclaje o éxito político. Los hallazgos permiten comenzar formación de élites legislativas en reciclaje continuo. Con lo anterior se pretende comenzar a cubrir un

Paris-Sud XI, Université de

438

Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

-84-92755-88-2 #12;ÁREA DE CIENCIA POLÍTICA 290 DE SECRETARIOS DE ESTADO A PARLAMENTARISTAS: EL RECICLAJE, afectar una precaria cultura democrática. Observaremos en qué medida el "reciclaje" de políticos influye

Boyer, Edmond

439

Análisis clínico y epidemiológico de los accidentes por mordeduras de serpientes del género Bothrops en Venezuela [A clinical and epidemiological analysis of accidental bites by snakes of the genus Bothrops in Venezuela].  

PubMed

Clinical register of 60 patients bitten by Bothrops snake who assisted at Leopoldo Manrique Hospital and the Institute of Tropical Medicine (HLM-IMT) in Caracas during 1996-1997 were analysed. The accident was more frequent in males (45/75%). In 32 cases (53.3%) the snake was classified and 26 were Bothrops lanceolatus, 4 Bothrops venezuelensis and 2 Bothrops atrox. Anatomic regions more frequent bitten were superior members (40/66.6%): hands (36/60%), forearm (2/3.3%), elbow (1/1.6%) and arm (1/1.6%). On inferior members (20/33.3%): legs (6/10%), feet (10/16.7%), ankle (2/3.3%), and the hip (2:3.3%). The most frequent clinical manifestations in moderate and severe cases (33 patient) were pain (100%), oedema (98%), ecchymosis (76%), blisters (20%), necrosis (12%), abscess (6%) bleeding (19%), heart failure (1/1.6%), renal failure (1/1.6%). The blood clotting was evaluated in 60 (100%) cases and it was altered in 33 (55%) patients. No deaths were recorded. PMID:11107900

Rodríguez Acosta, A; Uzcategui, W; Azuaje, R; Aguilar, I; Girón, M E

2000-01-01

440

ACUERDO por el que se emiten las Disposiciones en las materias de Recursos Humanos y del Servicio Profesional de Carrera, as como el Manual Administrativo de Aplicacin General en materia de Recursos Humanos y  

E-print Network

Presupuesto y Responsabilidad Hacendaria; 2, 13, 67, 68, 69 fracciones IV, V y XIV de la Ley del Servicio del Sistema de Registro del Personal Civil del Gobierno Federal, denominado RUSP, publicados en el

441

Perdidos en la selva. Un estudio del proceso de re-arriage y de desarrollo local de la Comunidad-Cooperativa Unión Maya Itza, formada por campesinos guatemaltecos, antiguos refugiados, reasentados en el Departamento de El Petén, Guatemala  

Microsoft Academic Search

Lost in the forest<\\/strong> : A study of the reintegration, re-rooting, and endogenous development process of the communal co-operative Unión Maya Itzá, formed by Guatemalan peasants, former refugees in Mexico, resettled in the Department of Petén, Guatemala.

Lost in the Forest: the return of the refugees to the El Quetzal \\

Vaeren van der P

2000-01-01

442

Taxa de concepção de cabras inseminadas com sêmen caprino resfriado a 5ºC, por 12 ou 24 horas, em meio diluidor à base de gema de ovo  

Microsoft Academic Search

The fertilizing capacity of goat semen cooled in egg yolk diluent at 5 o C, for 12 or 24 hours was evaluated. Sixty-two Toggenburg does and two sexually mature Toggenburg bucks were used in a fatorial treatment combination (two bucks and two storage periods). The semen was diluted in 2.5% Tris-frutose-egg yolk; envased in 0.25mL plastic straws, with 150x10 6

A. P. Siqueira; J. M. Silva Filho; J. F. Fonseca; J. H. Bruschi; M. S. Palhares; A. M. Borges; M. C. M. Bruschi; M. P. Peixoto; R. Rossi

2009-01-01

443

Crystal structure of bis-(4-nitro-aniline-?N 1)(5,10,15,20-tetra-phenyl-por-phy-rin-ato-?4 N)cobalt(III) chloride di-chloro-methane monosolvate  

PubMed Central

The reaction of [CoIII(TPP)Cl] (TPP is the dianion of 5,10,15,20-tetra­phenyl­porphyrin) with an excess of 4-nitro­aniline in di­chloro­methane leads to the title compound, [CoIII(C44H28N4)(C6H6N2O2)2]Cl·CH2Cl2. The CoIII ion lies on an inversion centre and is octa­hedrally coordinated by two N atoms of the NH2 groups of the two 4-nitro­aniline trans-axial ligands and four pyrrole N atoms of the porphyrin. The asymmetric unit contains one half of the [CoIII(TPP)(4-nitro­aniline)2]+ ion complex, one chloride counter-ion (lying on a twofold rotation axis) and one half di­chloro­methane solvent mol­ecule, where the C atom lies on a twofold rotation axis. The average equatorial Co—N(pyrrole) distance (Co—Np) is 1.982?(2)?Å and the axial Co—N(4-nitro­aniline) bond length is 2.006?(2)?Å. The crystal packing is stabilized by an N—H?Cl hydrogen bond between the N atom of the amino group of the 4-nitro­aniline axial ligand and the chloride counter-ion. The supra­molecular architecture is further stabilized by weak C—H?? inter­actions.

Belghith, Yassine; Mansour, Anissa; Nasri, Habib

2014-01-01

444

Viajando por la Carretera de la Educacion Especial: Una Guia para los Padres para Tener un Viaje Feliz y Seguro (Traveling the Special Education Highway: A Parent's Guide to a Safe and Happy Journey).  

ERIC Educational Resources Information Center

Designed for Spanish-speaking parents, this brochure, written in Spanish, uses a car-trip analogy to describe special education services for students with disabilities. It addresses: (1) child find; (2) initial evaluation and eligibility determination; (3) categories of students who receive special education services and related services; (4)…

Santa Maria, Karen

445

ENDOSCOPÍA TRAQUEAL EN EL DIAGNÓSTICO DE CASOS SUBCLÍNICOS DE HEMORRAGIA PULMONAR INDUCIDA POR EJERCICIO EN CABALLOS DE CARRERA TRACHEAL ENDOSCOPY ON THE DIAGNOSIS OF P ULMONARY HEMORRAGHYCAL SUBCLINICAL CASES INDUCED BY EXERCISE IN RACING HORSES  

Microsoft Academic Search

This study aimed to determine the percentage of Exercise-Indu ced Pulmonary Hemorrhage (EIPH) by endoscopic evaluation after racing in Thoroughbred horses. A total of 172 horses between 2 to 8 years old (75 females and 97 males) at Monterrico racetrack in Lima were used. The endoscopic tracheal evaluation was done between 30 and 90 minutes of rest after the race.

446

Sintese, por fusao alcalina da zirconia a partir da zirconita: caracterizacao e preparacao do titanato-zirconato de chumbo. (Synthesis, by alkaline fusion of zirconia from zirconite: characterization and preparation of lead zirconate-titanate).  

National Technical Information Service (NTIS)

Zirconium oxide was prepared from zirconite by alkaline fusion. The purity of zirconia was determined by atomic absorption spectroscopy and was found to be 99,94 wt%. In order to prepare en unglomerated and dry hidrous zirconia powder it was used alcohol ...

M. A. Zaghete

1985-01-01

447

Produção de Sorbitol por Zymomonas Mobilis ATCC 29191 em Meio de Sacarose Pré-Tratado com Invertase Sorbitol Production By Zymomonas Mobilis ATCC 29191 In Medium Of Sucrose Pre-Treated With Invertase  

Microsoft Academic Search

Sorbitol production by Zymomonas mobilis ATCC 29191 in medium of sucrose pre-treated with invertase was studied. The best results were obtained when the medium was pre-treated with invertase as sorbitol production of 41,39 g\\/L and a productivity of 1,72 g\\/L.h-1 in 24 hours of fermentation. The invertase addition in the fermentation broth increased 72,17% in the sorbitol formation.

Márcio de Barros; Josiane Alessandra Vignoli; Viviane Cristina Schiabel

448

Efecto de la metionina de zinc en el casco del equino: una evaluación por microscopía electrónica de barrido ambiental Effect of zinc methionine on the equine hoof: an evaluation by environmental scanning electron microscopy  

Microsoft Academic Search

The hoof is a relatively simple structure, mainly constituted by keratin, a highly sulfated protein, that provides hardness to the hoof and certain elasticity to support the weight and distribute the impact's intensity on the hoof. The hoof needs to have an adequate quality to be able to carry out these functions and that requires a good nutrition based on

Rosario Neri Basurto; Lilia Solís Arrieta; Hilda Villegas Castrejón; José Antonio; Esquivel Martínez; Carlos Alberto; Castro Herrera

449

Vistazos Intimos De Puebla; Una Compilacion De Informes Individuales Preparados Por Los Participantes Del Instituto De Verano (NDEA) (Close-ups on Puebla; A Compilation of Individual Reports Prepared by the Participants of the NDEA Summer Institute).  

ERIC Educational Resources Information Center

The individual and committee reports on the sociology of Puebla, Mexico, which are collected here, were written by participants in an NDEA Summer Institute program of the University of Wichita, Kansas. The underlying motives of the program, described in the preface, were to provide participants with real language experience and a chance to…

Wichita State Univ., KS.

450

Depredación de aves acuáticas por la nutria neotropical (Lontra longicaudis annectens), en el río Yaqui, Sonora, México Aquatic bird predation by neotropical river otter (Lontra longicaudis annectens), at Río Yaqui, Sonora, México  

Microsoft Academic Search

We report the predation of aquatic birds by neotropical river otters (L. longicaudis annectens) at Río Yaqui, Sonora. As many as 25 skulls, post-cranial skeletons and feathers were found at river otter feeding sites. The neotropical cormorant (Phalacrocorax brasilianus) was the most predated bird with 16 individuals, followed by Mexican mallard (Anas platyrhynchos diazi) with 4 individuals, great egret (Ardea

Juan Pablo Gallo-Reynoso; Nadia Nayeli Ramos-Rosas; Óscar Rangel-Aguilar

451

Angular phase-plate analyzers for measuring the dimensionality of multimode fields J. B. Pors,* A. Aiello, S. S. R. Oemrawsingh, M. P. van Exter, E. R. Eliel, and J. P. Woerdman  

E-print Network

, and in the manipulation of Bose-Einstein condensates 17,18 , where they are utilized to rotate samples. Orbital,20 , motivated by the advantages that quantum entanglement in a high-dimensional mode space might pro- vide. As mentioned above, the angular phase operation per- formed on the field can be realized with either

Exter, Martin van

452

Cold stress effects on cardiomyocytes nuclear size in rats: light microscopic evaluation Efeitos do estresse pelo frio sobre o tamanho nuclear do cardiomiócito em ratos: avaliação por microscopia de luz  

Microsoft Academic Search

Introduction: Total body induced hypothermia and myocardial cooling are effective methods regarding myocardial protection during heart surgery and ischemia. It is described in previous studies that extreme low temperature exposure causes mitochondrial cristae and myofilament disarrangement in cardiomyocytes, however, no investigation has analyzed the effects of cold stress on nuclear size of cardiomyocytes. Objectives: To evaluate the effects of acute

Adriano MENEGHINI; Celso FERREIRA; Luiz Carlos de ABREU; Marcelo FERREIRA; Celso FERREIRA FILHO

453

Efeitos do estresse pelo frio sobre o tamanho nuclear do cardiomiócito em ratos: avaliação por microscopia de luz Cold stress effects on cardiomyocytes nuclear size in rats: light microscopic evaluation  

Microsoft Academic Search

Introduction: Total body induced hypothermia and myocardial cooling are effective methods of myocardial protection during heart surgery and ischemia. It has been described in previous studies that extremely low temperatures cause mitochondrial cristae and myofilament disarrangement in cardiomyocytes, however, no investigation has analyzed the effects of cold stress on the nuclear size of cardiomyocytes. Objectives: To evaluate the effects of

Adriano MENEGHINI; Celso FERREIRA; Luiz Carlos de ABREU; Marcelo FERREIRA; Celso FERREIRA FILHO

454

Diferencias en las características sociales, conductas de riesgo y prevalencia de infección por el virus de la inmunodeficiencia humana e infecciones de transmisión sexual entre trabajadoras del sexo españolas e inmigrantes en Cataluña  

Microsoft Academic Search

Background and objectiveTo describe and compare the social characteristics, human immunodeficiency virus (HIV), Chlamydia trachomatis and Neisseria gonorrhoae prevalences, and risk behaviours among immigrant female sex workers (FSW) according to their geographical area of origin.

Cinta Folch; Cristina Sanclemente; Anna Esteve; Elisa Martró; Sonia Molinos; Jordi Casabona

2009-01-01

455

Síndrome de Wolff-Parkinson-White e outras Vias Acessórias Atrioventriculares em 1465 Pacientes Submetidos à Ablação por Radiofreqüência Wolff-Parkinson-White Syndrome and other Atrioventricular Accessory Pathways in 1,465 Patients Undergoing Radio-Frequency Ablation  

Microsoft Academic Search

Background: Several studies analyzed clinical and electrophysiological data for patients with accessory pathways, most of them not Brazilian and based on a relatively small number of patients. Objective: To describe the number and location of the accessory pathways in Brazilian patients undergoing radiofrequency ablation. Methods: A retrospective analysis was conducted of 1,465 consecutive patients with accessory pathways who u n

Iara Atié; Washington Maciel; Eduardo Andréa; Nilson Araújo; Hecio Carvalho; Luís Belo; Leonardo Siqueira; Cláudio Munhoz; Rodrigo Cosenza; Fabiana Mitidieri; Lara Fonseca; Cristiane Bortoluzzo; Tarik Arcoverde; Bruno Andréa; Jacob Atié

456

Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

. Editores: Heriberto Cairo Carou, Almudena Cabezas González, Tomás Mallo Gutiérrez, Esther del Campo García Adán (La casa de cartón), María Luisa Bombal (La última niebla), Lino Novas Calvo (No sé quién soy

Paris-Sud XI, Université de

457

Ingestion Reiterada de Cuerpos Extranos. Forma Inusual de Presentacion del Sindrome de Munchausen por Poderes (Reiterated Ingestion of Foreign Bodies. Unusual Form of Presentation of Munchausen Syndrome by Proxy).  

ERIC Educational Resources Information Center

An unusual case of Munchausen syndrome by proxy is reported. A mother with a psychiatric record of behavior disorders and family dysfunction perpetrated the ingestion of foreign bodies (for example, earrings, a screw, sewing needles) on a 10-month-old infant with a history of prematurity, repeated visits to emergency rooms, and nonjustified…

Terreros, I. Gomez de; And Others

1996-01-01

458

«Amigos con derecho a roce»: una oportunidad para contraer la infección por el virus de la inmunodeficiencia humana en hombres homo\\/bixesuales con prácticas sexuales de alto riesgo  

Microsoft Academic Search

ObjectiveDespite prevention efforts, the prevalence of unprotected anal intercourse (UAI) remains substantial among men who have sex with men (MSM). This study describes and analyzes how a group of MSM manages sexual risk with sexual partners.

Percy Fernández-Dávila

2007-01-01

459

224. Toda cosa tiene un lado bueno y otro malo: aprende a buscarlos. Toma todo por el lado conveniente. Nunca en forma rabiosa, aunque venga as. Todas las cosas tienen un derecho y  

E-print Network

conveniente. Nunca en forma rabiosa, aunque venga así. Todas las cosas tienen un derecho y un revés. De modo. En palabras de Gracián, todas las cosas tienen un derecho y un revés y los fracasos temporales en la

Muiño, Ricardo Díez

460

Benefits and limitations of food processing by high-pressure technologies: effects on functional compounds and abiotic contaminants Beneficios y limitaciones del procesamiento de alimentos por tecnologías de alta presión: efectos en componentes funcionales y contaminantes abióticos  

Microsoft Academic Search

The continuing and worldwide growth of pressure processing technologies to pasteurize and sterilize foods justifies the need to study the effects on functional compounds and abiotic contaminants as affected by high-pressure processing (HPP) and pressure-assisted thermal processing (PATP). Substantially more research will be required to determine the complex effects of the food matrix on chemical reactions leading to losses of

Zamantha Escobedo-Avellaneda; Mirian Pateiro Moure; Nattaporn Chotyakul; J. Antonio Torres; Jorge Welti-Chanes; Concepción Pérez Lamela

2011-01-01

461

John Tracy Clinic: Programa de Ensenanza por Correspondencia para Los Padres de Ninos Sordo-Ciegos de Edad Preescolar (John Tracy Clinic Correspondence Learning Program for Parents of Preschool Deaf-Blind Children).  

ERIC Educational Resources Information Center

Written in Spanish, the document contains a correspondence learning program for parents of deaf blind preschoolers. An introductory section gives preliminary instructions, an introduction to sign language, and a list of resources for deaf blind children. Twelve lessons follow with information on: the parent's role in teaching the child, visual…

Thielman, Virginia B.; And Others

462

Estudio por difraccion de rayos X de la disminucion de la concentracion de metales en solidos de aguas residuales industriales. (X-ray diffraction of the diminution in the concentration of heavy metals from industrial waste water sludge).  

National Technical Information Service (NTIS)

We worked with an apparatus and process patented for Jaime Vite Torres, in the United States of America, for extracting simultaneously toxic and value metals from foundry sands. In this research, we used similar devices to remove toxic metals of waste wat...

M. C. Carreno de Leon

1996-01-01

463

A Study of the Topography of Crystalline Imperfections by the Parallel Beam Method of X-Ray Diffraction (Estudio Topografico de Las Imperfecciones de UN Cristal Por Difraccion de Rayos X; Metodo Del Haz Paralelo).  

National Technical Information Service (NTIS)

The theoretical background of the parallel beam method is discussed. The intensity of the diffracted beam is proportional to absolute value of F(h) or absolute value squared of F(h)2 according to the dynamical or geometrical theory, respectively. The dyna...

J. L. Amoros, P. Tavira

1964-01-01

464

Fields without Borders: An Anthology of Documentary Writing and Photography by Student Action with Farmworkers' Interns = Campos sin Fronteras: Una Antologia de Obras Escritas y Fotografia por Estudiantes Internos de Accion Estudiantil con Trabajadores Agricolas.  

ERIC Educational Resources Information Center

In this booklet, essays and poems, presented both in English and in Spanish, portray the feelings, conditions, and economic plight of migrant and seasonal farmworkers in North and South Carolina, often in their own words. A preface describes Student Action with Farmworkers summer internships in which college students spend 10 weeks working with…

Manly, Libby, Ed.; Okie, Alejandra, Ed.; Wiggins, Melinda, Ed.

465

EFFECT OF THE PARTIAL SUBSTITUTION OF SUCROSE BY NEOTAME ON THE SENSORY AND CONSISTENCY CHARACTERISTICS OF PLAIN YOGURT EFECTO DE LA SUSTITUCIÓN PARCIAL DE SACAROSA POR NEOTAME EN LAS CARACTERÍSTICAS SENSORIALES Y DE CONSISTENCIA DE YOGUR NATURAL  

Microsoft Academic Search

The purpose of this study was to evaluate the effect of the partial substitution of sucrose by neotame on the sensory and physical characteristics of plain yogurt. Yogurts consisted of a 100 % sucrose control and 3 formulations with 25, 37.5, and 50 % of the sucrose substituted by neotame. Sweetness of all treatments was evaluated using time- intensity (TI)

C. Hernández-Morales; A. Hernández-Montes; A. Villegas-de Gante

2007-01-01

466

Abundância química de simbióticas na direção do bojo galáctico  

NASA Astrophysics Data System (ADS)

O estudo da distribuição de metalicidades de gigantes K no Bojo indica um largo intervalo com valores entre 0.1 a 10 vezes o valor solar. As razões elementais Ca/Fe, Si/Fe, Mg/Fe são típicas de estrelas do halo, apontando para um processo rápido de enriquecimento, via estrelas masssivas (SN's tipo II). No entanto, este cenário não combina com os resultados derivados de nebulosas planetárias do bojo tais como os de Ratag et al. (1992, A&A,255,270), Cuisinier et al.(2000, A&A,353, 543), Escudero e Costa (2001, A&A,380, 300),que obtêm abundâncias análogas às do disco. Neste cenário, o estudo de estrelas simbióticas possibilita uma abordagem particularmente apropriada para o problema das abundâncias químicas de estrelas de massa intermediária em estágios avançados da evoluçao estelar. Apresentamos aqui os resultados da determinacão das abundâncias do grupo do CNO numa extensa amostra de simbióticas do bojo. Aliás, com a disponibilidade de espectros no visível determinamos também abundâncias de Ar, Ne, S e He, fundamentais para analisar os processos de enriquecimento químico ocorridos ao longo da evolução estelar, bem como a evolução química do meio interestelar. Com os espectros UV do satelite IUE obtivemos abundâncias de C, necessárias no estudo da evolução dos sistemas. As relaçoes C/N-O/N mostram que o material nebular é produto do vento da componente gigante e não dos eventos de nova que às vezes acontecem nestes sistemas, como foi mostrado por Nussbaumer et al (1988,A&A,198,179). As abundâncias de Ar, S, Ne e O são compativeis com resultados de fontes no disco e bojo, seguindo o gradiente proposto por muitos autores na literatura a partir de diferentes objetos como cefeidas, nebulosas planetárias e anãs G. (CAPES,FAPESP,CNPq)

Luna, G. J. M.; Costa, R. D. D.

2003-08-01

467

A causa das estações do ano: modelos mentais  

NASA Astrophysics Data System (ADS)

A década de 70 do século passado foi marcada pelo estudo das concepções alternativas que os alunos trazem para a sala de aula. A identificação destas concepções foi o ponto de partida para promover a mudança conceitual, onde as pré-concepções seriam trocadas pelas concepções científicas. Na década seguinte, surgiram muitas propostas de estratégias educacionais para facilitar esta troca, na sua maioria baseadas na idéia do conflito cognitivo, proposta por Piaget. Entretanto, os resultados pouco animadores conduziram à percepção de que a mudança conceitual é um processo mais complexo. Pelas idéias da Ciência Cognitiva, a mudança conceitual é uma mudança progressiva dos modelos mentais que o aluno tem sobre o mundo físico, através de enriquecimento e revisão. A causa das Estações do Ano é um tópico sobre o qual a maioria dos estudantes apresenta concepções alternativas. Os autores fizeram um levantamento sobre as pré-concepções encontradas em trabalhos sobre o tema (16 referências), procurando encontrar elementos comuns que indicassem a presença de modelos mentais específicos. As pré-concepções encontradas na literatura foram obtidas usando-se diversas metodologias (desde entrevistas clínicas até questionários de múltipla escolha) e envolvendo alunos e professores de diferentes regiões geográficas. A partir de uma análise aprofundada de cada trabalho, e utilizando-se a técnica das Redes Sistêmicas, chegou-se a conclusão que as diversas pré-concepções identificadas (em torno de 50), poderiam ser representadas por 6 modelos mentais, onde a explicação da causa das estações do ano tem um mecanismo causal responsável. Os mecanismos causais identificados foram: a dependência da distância, a dependência da orientação, a dependência conjunta da distância e orientação, a dependência da obstrução, a dependência da velocidade e a dependência da inclinação dos raios solares. Foram ainda identificadas associações alternativas, que são um conjunto de pré-concepções, onde não existe a idéia de um modelo científico completo mas, sim, fragmentos de observação do dia a dia das pessoas.

de Campos, J. A. S.; de Araujo, J. F. S.

2003-08-01

468

Reacciones de intercambio de carga  

NASA Astrophysics Data System (ADS)

Se discute la validez de diversas metodologías y su aplicación al estudio de procesos de intercambio de carga electrónico entre iones y blancos atómicos y moleculares. Para energías de impacto entre 0.05 y 5 eV / amu se emplea el método cuántico de la Coordenada de Reacción Común (CRC). A mayores energías, se utiliza el método semiclásico iconal con un desarrollo de la función de onda dinámica en estados moleculares adiabáticos, modificados con un factor de traslación común (FTC). Estos estados pueden obtenerse con cálculos ab initio o empleando potenciales modelo. Cuando la ionización compite con la transferencia de carga, la inclusión de pseudoestados en estos desarrollos permite calcular simultáneamente las secciones eficaces de ambos procesos. Otra técnica utilizada es el método estadístico CTMC. En el tratamiento de colisiones ión-molécula (diatómica) contrastamos la aplicabilidad de distintos métodos, desde la llamada aproximación Franck-Condon hasta un desarrollo en estados vibrónicos, pasando por la aproximación súbita vibro-rotacional, obteniéndose secciones eficaces de captura electrónica total y a estados individuales, así como secciones de excitación vibracional a estados ligados y del continuo (disociación). En todos los casos es necesario calcular superficies de energía y los correspondientes acoplamientos dinámicos entre los estados. La aplicación de estos métodos permite determinar el grado de contaminación de los haces por estados metaestables en un experimento dado, el cambio en los resultados con diferentes isótopos, la importancia de procesos de doble captura, seguida de explosión culombiana, todo ello con precisión comparable a la de medidas experimentales, para sistemas de interés en distintos tipos de plasmas.

Errea, L. F.

470

Percepci?n de competencia y adiestramiento profesional especializado relativos al VIH/SIDA en estudiantes y profesionales de la salud: el estigma como un indicador de necesidad  

PubMed Central

El proceso de estigmatización asume una devaluación de la persona debido a una característica o marca que haya sido identificada socialmente y que permita que se le describa como diferente. Desde que se desató la epidemia del VIH/SIDA, vivir con la enfermedad ha sido señalado de manera social como una marca estigmatizante. Las manifestaciones de dicha estigmatización se han documentado entre profesionales de la salud. Este estigma puede afectar los servicios de salud que las personas que viven con VIH/SIDA reciben de estos profesionales. Los objetivos de esta investigación fueron explorar: 1) la percepción que tienen estudiantes y profesionales de la salud sobre su nivel de competencia para ofrecer servicios a personas que viven con VIH/SIDA, 2) las opiniones de éstos sobre el tipo de adiestramiento profesional recibido y la necesidad del mismo, y 3) la manifestación de actitudes estigmatizantes como indicadores de necesidad de adiestramiento profesional. La muestra total del estudio estuvo compuesta por 80 de diversas profesiones de la salud. Los resultados reflejan que algunos/as de los/as participantes han recibido formación en VIH pero ésta no ha sido suficiente para contrarrestar las nociones estigmatizantes. Discutimos las implicaciones de los resultados para investigaciones futuras y el desarrollo de intervenciones con vías de minimizar las nociones estigmatizantes en los escenarios de salud. PMID:20011236

RODRIGUEZ, Yarimar ROSA; DIAZ, Nelson VARAS

2009-01-01

471

Determinação do extremo de baixa luminosidade da função de luminosidade através de simulações de Monte Carlo  

NASA Astrophysics Data System (ADS)

Neste trabalho apresentamos os principais resultados do estudo da população de galáxias anãs de baixo brilho superficial dos grupos compactos HCG44 e HCG68. A inclinação do extremo de baixa luminosidade a da função de luminosidade desses grupos foi estimado através de simulações de Monte Carlo. O método consistiu em simular galáxias anãs de baixo brilho superficial em imagens reais seguindo uma distribuição de magnitudes dada uma função de Schechter. Foram testados vários modelos com diferentes valores para os parâmetros M* e a da função de Schechter, e para cada um dos modelos foi repetido o mesmo processo de recuperação, seleção e análise usados com as galáxias anãs dos grupos. Os resultados de cada modelo foram então comparados com o observado nos grupos. Nossos resultados indicam que a distribuição de magnitudes (para magnitudes absolutas até MR»-12) observadas nos grupos são compatíveis com uma função de luminosidade de Schechter dada por um M* = -16 e um a entre -1.0 e -1.4, e portanto de acordo com a tendência observada de uma inclinação do extremo de baixa luminosidade da função de luminosidade de grupos mais plana (~1.2, Trentham & Tully 2002, MNRAS, 335, 712) que esperado pelo modelo hierárquico de formação de estruturas CDM (Cold Dark Matter - Matéria Escura Fria).

Campos, P. E.; Mendes de Oliveira, C.

2003-08-01

472

Systematics, distribution, and host specificity of Edrabius Fauvel (Insecta: Coleoptera: Staphylinidae)  

E-print Network

(host: Ctenomys maulinus maulinus); and Edrabius chilensiformis (host: Octodon degus). New distribution and host records are given for E. alticolus Seevers, E. argentinus Seevers, E. chilensis Scheerpeltz, E. peruanus Seevers, E. philippianus Fauvel...RESUMEN—Se presenta una revisión de la sistemática, la distribución y las relaciones de los hospederos de los amblyopininos del género Edrabius (Coleoptera: Staphylinidae). Se reconocen 11 especies de Edrabius, todas parásitos obligados de roedores caviomorfos sudamericanos de las familias Caviidae, Ctenomyidae y Octodontidae (Mammalia: Rodentia). Se describen tres nuevas especies: Edrabius grandis, hospedador: Ctenomys haigi); Edrabius australis, hospedador: Ctenomys maulinus maulinus); y Edrabius chilensiformis, hospedador: Ocrodon degus). Se entregan nuevos registros distribucionales y de hospederos para E. alticolus Seevers, E. argentinus Seevers, E. chilensis Scheerpeltz, E. peruanus Seevers, E. philippianus Fauvel y E. weiseri Seevers. Por primera vez se reporta la presencia de Edrabius en roedores octodóntidos (E. chilensis en Aconaemys y E. chilensiformis en Octodon). EI género Edrabius anterionnente se conocía solamente asociado a diferentes especies de Ctenomys, con la excepción de una especie, E. kuscheli, asociada a Galea musteloides (Caviidae)....

Ashe, James S.; Timm, Robert M.; Gallardo, Milton H.

1996-12-01

473

Del sujeto que ha intentado suicidarse y el Otro: la Institución Psiquiátrica  

PubMed Central

El hospital psiquiátrico se ha constituido como un lugar donde se posibilita legitimar la exclusión y la radicalidad de ese otro “que no es igual”, como es el caso del sujeto que atenta contra su propia vida. En consecuencia, el intento de suicidio desde el pensamiento foucaultiano, es una resistencia que desmantela la estructura de dominación a través de un acto de poder, el cual se ejerce sobre el propio cuerpo. Así, la intención de este texto es mostrar que la relación Otro-otro es un lugar en la estructura subjetiva, que se deposita en la institución psiquiátrica, la cual representa el poder, la ley, y es aquello a lo que se le quiere agredir, resistir, abatir con un intento de suicidio. Para demostrar como se materializan estos hechos, se exponen los testimonios de tres adolescentes atendidas en un hospital psiquiátrico por intentos suicidas, en los cuales se señalan los diferentes significados que le atribuyen a la institución psiquiátrica en tanto que representa un Otro en sus actos autoinfligidos.

Liliana, Mondragón B.; Miguel Ángel, Caballero G.

2009-01-01

474

A atuação do Observatório Nacional registrada nos relatórios ministeriais 1889 a 1930  

NASA Astrophysics Data System (ADS)

O período republicano até 1930 foi marcante na história do Observatório Nacional. Diversas reformas levaram a instituição a três ministérios diferentes e mudaram a ênfase do seu trabalho. A tão aguardada mudança para uma nova sede, em São Cristóvão, em 1920, não foi suficiente para que a instituição acompanhasse o ritmo tomado pela astronomia no mundo e se firmasse como ambiente de pesquisa. Uma análise simplificada poderia caracterizar um período de produção científica insignificante, dado o distanciamento da instituição dos novos rumos da astrofísica e da rápida inovação dos instrumentos, além do pequeno volume de publicações. Era uma época em que ainda não existiam os mecanismos formais de apoio e avaliação da atividade científica. Esse trabalho procura identificar a real atividade do Observatório no conteúdo dos Relatórios Ministeriais que, ao final de cada ano, apresentava as atividades, sucessos e problemas enfrentados pela instituição. Questões como instrumental e recursos humanos necessários; entraves burocráticos e financeiros; e articulações com outros observatórios se complementaram entre si ao longo desses anos para definir o perfil institucional e alguns aspectos fundamentais para a construção da astronomia no país. É possível concluir que a ênfase em serviços geográficos e de meteorologia, ao lado da inadequação dos instrumentos e do local, quase fizeram desaparecer a pesquisa em astronomia. Porém, vale destacar a sobrevivência de alguns trabalhos, como, por exemplo, variação de latitude e observação de estrelas duplas que mantiveram importante intercâmbio com outros grupos de pesquisa, demonstrando o constante esforço dos astrônomos e das diretorias em defesa da atividade científica.

Rodrigues, T.

2003-08-01

475

Incorporando a variabilidade no processo de identifica??o do modelo de m?ximo global no Grade of Membership (GoM): considera??es metodol?gicas  

PubMed Central

A disponibilidade de bases de dados cada vez mais complexas e multidimensionais é um dos principais motivadores para o aumento do número de estudos que utilizam análises multivariadas baseadas em lógica de conjuntos nebulosos. Apesar da disseminação do método Grade of Membership nos trabalhos empíricos brasileiros da área de ciências sociais e saúde, questões relativas à identificabilidade e estabilidade dos parâmetros finais estimados pelo programa GoM 3.4 não foram suficientemente aprofundadas. Dada a relevância de se obterem parâmetros únicos e estáveis, Guedes et al. (2010) propuseram um procedimento empírico para localizar um modelo de máximo global (MG) com parâmetros estáveis. Entretanto, seu localizador de MG não incorpora qualquer medida de variabilidade. Neste artigo, tal limitação é contornada por meio da utilização de uma estatística de ponderação – Máximo Global Ponderado (MGP) – semelhante ao coeficiente de variação. Esse indicador busca não penalizar de forma desproporcional situações nas quais os desvios médios, apesar de diferentes de zero, são muito pequenos. Apresentam-se evidências de que o localizador MGP reduz a distância do modelo identificado à real estrutura latente dos dados em análise, quando comparados ao modelo identificado pelo localizador não ponderado, MG. PMID:23293402

Guedes, Gilvan Ramalho; Siviero, Pamila Cristina Lima; Caetano, Andre Junqueira; Machado, Carla Jorge; Brondizio, Eduardo

2012-01-01

476

Servicio de Referencia Digital en Bibliotecas de Ciencia y Tecnología: alternativas para las prestaciones  

E-print Network

Referencia digital: servicio de referencia que se brinda utilizando distintos medios de comunicación digitales para la interacción usuario-referencista. Referencia virtual: “ … servicio de referencia iniciado electrónicamente, a menudo en tiempo real, donde los usuarios emplean computadoras u otra tecnología de Internet para comunicarse con los bibliotecarios, sin estar físicamente presentes. Los canales de comunicación usados frecuentemente en referencia virtual incluyen videoconferencia, servicios de voz en Internet, correo electrónico y mensajería instantánea. Aunque es frecuente la utilización de fuentes en línea para la provisión del servicio de referencia virtual, el uso de fuentes electrónicas en la búsqueda de respuestas no es en sí misma referencia virtual. El seguimiento de las consultas de referencia virtual se hace a menudo por teléfono, fax o correo electrónico, aún cuando esos modos de comunicación no son considerados virtuales” American Library Association. MARS Ad Hoc Committee on Virtual Reference Guidelines. (2003). Draft guidelines for implementing and maintaining virtual services. •Referencia digital •Referencia virtual •Referencia en línea Terminología variada y aún no consolidada: •Ask a librarian (u otro especialista) •Referencia permanente (24/7) •Referencia en tiempo real Los conceptos son bastante diferentes; sin embargo, estas expresiones suelen considerarse intercambiables. En general se aplican a servicios de referencia que utilizan tecnología digital para la comunicación con los usuarios, principalmente a través de Internet. Un glosario de términos relacionados con RD:

Pedro Falcato; Sistemas Asincrónicos; Correo Electrónico

477

A estabilidade dos PAHS em função da energia da radiação interestelar nas faixas UV e raios-X  

NASA Astrophysics Data System (ADS)

A nebulosa CRL 618, uma proto-nebulosa planetária cuja nuvem molecular espessa envolve uma estrela B0, contém uma grande quantidade de C2H2 e CH4. Estas moléculas são consideradas os tijolos da criação de grandes moléculas carbonadas como os Hidrocarbonetos Policíclicos Aromáticos (PAHs). Esta nebulosa, por estar exposta a intensos campos de UV e Raios-X, é uma região de fotodissociação molecular que propicia a formação de novas moléculas, confirmada pela presença de C4H2 e C6H6 (Benzeno), que é a unidade básica dos PAHs. Atribui-se a esta família de moléculas orgânicas duas propriedades fundamentais, a resistência para sobreviver ao campo de radiação UV interestelar e a geração das bandas de emissão não identificadas (UIR) observadas no infravermelho. No entanto, alguns autores questionam a resistência dos PAHs ao campo de radiação UV interestelar. Empregando a técnica de Espectrometria de Massas por Tempo de Vôo, no modo de coincidência fotoelétron-fotoíon, estudamos a ionização e fragmentação das seguintes moléculas: Benzeno, Benzeno deuterado, Naftaleno, Antraceno e Fenantreno. Utilizamos uma fonte de Hélio monocromática em 21,21 eV (584,5 Å) e a radiação Síncroton do Laboratório Nacional de Luz Síncroton (LNLS) em diferentes energias nas proximidades da borda do C 1s ( 290 eV). Comprovamos a estabilidade dos PAHs sob ação de UV (21,21 eV), onde eles apresentam um baixo nível de fotodissociação, produzindo fragmentos ionizados com rendimento total na ordem de 5 por cento em relação ao íon molecular pai. Entretanto, em altas energias, na faixa de Raios-X, a quebra destas moléculas torna-se mais intensa, com a produção de muitos fragmentos. Como uma das rotas de fragmentação do Naftaleno é [(C10H8) = > (C6H6+) + (C4H2) + (e-)], e como temos as evidências observacionais da existência do C4H2 e C6H6 na nebulosa CRL 618, sugerimos que este ambiente também possui o Naftaleno.

Pinotti, R.; Costa, R. K.; Boechat-Roberty, H. M.; Lago, A.; Souza, G. B.

2003-08-01

478

Analysis of astronomy knowledge of the students in the Federal Institute Sao Paulo  

NASA Astrophysics Data System (ADS)

Este trabalho é parte integrante da pesquisa de mestrado acadêmico em ensino de ciências. Nele, busca-se apresentar os resultados da pesquisa realizada entre os 106 alunos do curso superior de tecnologia em automação industrial do Instituto Federal de Educação, Ciência e Tecnologia de São Paulo campus Cubatão, divididos em cinco turmas, duas no período matutino e três no período noturno. A análise dos resultados deste pré questionárioconstatou a falta de conhecimento básico dos discentes, sobre assuntos relacionados à astronomia, o que pode ser atribuído ao ineficiente processo de aprendizado pelo qual eles passaram tanto no ensino médio como no ensino fundamental, em escolas municipais, estaduais e particulares onde estudaram. No ensino de astronomia, têm-se diagnosticado constantemente diversas dificuldades conceituais tanto por parte de alunos como de professores de todas as áreas e níveis de ensino e poucos de fato a compreendem (ALBRECHT; VOELZKE, 2010). Demonstra-se as duas etapas concluídas do trabalho. A primeira etapa indica a análise dos conhecimentos prévios sobre conceitos astronômicos, através do questionário com 25 perguntas. A fim de corrigir as falhas constatadas, experimentalmente ministrou-se, externo ao conteúdo programático, um curso básico em astronomia, com diferentes estratégias de ensino, tais como, utilização de aulas expositivas dialogadas, recursos audiovisuais e palestras, para corrigir as dificuldades diagnosticadas. Essas estratégias de ensino se comprovaram adequadas às necessidades dos alunos e os conceitos foram finalmente compreendidos. Ao término do curso, completado o interstício de 120 dias, para caracterizar que houve a aprendizagem significativa, realizou-se uma nova pesquisa, quando, exatamente os mesmos 106 alunos responderam as mesmas 25 questões aplicadas na primeira etapa. Constata-se na segunda etapa, após análise, que em todas as questões, houve maior compreensão dos assuntos abordados e os alunos obtiveram uma melhora significativa no aprendizado dos conceitos relacionados à astronomia. Nota-se que a astronomia está presente e é elemento importante dos parâmetros curriculares nacionais e que há muito interesse por parte dos alunos com relação ao tema. Diante dos resultados obtidos no pós-curso, pode-se afirmar que o curso básico em astronomia, realizado na própria escola, mas externo ao conteúdo programático, proporcionou uma integração entre os alunos, estreitando os laços de amizade e do conhecimento entre eles não importando a turma ou o período pois a dificuldade inicial foi vencida por todos, com muita dedicação e comprometimento entre todos; hoje estes alunos podem seguramente continuar estudando estes conceitos de astronomia. ALBRECHT, E.; VOELZKE, M. R.Teaching of Astronomy and scientific literacy. Journal of Science Education, v. 11, n. 1, p.35-38, 2010.

Moraes, A. C.; Voelzke, M. R.

2014-08-01

479

Optimization design of antenna used in a automotive electromagnetic compatibility tests.  

E-print Network

??Frente aos vários avanços tecnológicos envolvidos na construção de automóveis e os diferentes fenômenos eletromagnéticos existentes, a análise de Compatibilidade Eletromagnética em equipamentos eletrônicos torna-se… (more)

Javier Andres Garcia Alfaro

2006-01-01

480

Musicoterapia aplicada à avaliação da comunicação não verbal de crianças com transtornos do espectro autista : revisão sistemática e estudo de validação.  

E-print Network

??Introdução: os transtornos do espectro autista (TEA) representam uma desordem comportamental complexa, com etiologias múltiplas e diferentes níveis de severidade. Indivíduos com TEA compreendem e… (more)

Gustavo Schulz Gattino

2012-01-01

481

Analysis, implementation and validation of a Love mode surface acoustic wave device for its application as sensor of biological processes in liquid media.  

E-print Network

??En las últimas dos décadas, han surgido diferentes tecnologías acústicas para aplicaciones biosensoras como alternativas a tecnologías de detección bien establecidas ¿acústicas o ópticas¿ como… (more)

ROCHA GASO, MARÍA ISABEL

2013-01-01

482

Performance Enhancement MEMS Based INS/GPS Integrated System Implemented on a FPGA for Terrestrial Applications.  

E-print Network

??Hoy en día con el desarrollo de sensores inerciales basados en Sistemas Micro-electromecánicos (MEMS), podemos encontrar acelerómetros y giróscopos embebidos en diferentes dispositivos y plataformas,… (more)

Garcia Quinchia, Alex

2014-01-01

483

DIAGNOSTICO Y ANALISIS DEL IMPACTO DE LOS CASINOS EN EL ECUADOR  

Microsoft Academic Search

En el Ecuador los juegos de azar a diferencia de los países del orbe no es una industria millonaria en la que se jueguen altísimas sumas de dinero, sino más bien es moderado el consumo, así, para 13 millones de habitantes hay 45 casinos de diferente categoría ubicados a lo largo y ancho de las diferentes ciudades del país, los

Autor Alfredo Uquillas

2011-01-01

484

Compartiendo el paisaje En Belice existen cinco especies de gato silvestre, los  

E-print Network

principalmente en bosques y humedales en donde cazan diferentes animales; tales como gibnut (tepezcuintle hogar y cazan diferentes animales, particularmente aquellos de mayor tamaño como venados y pecaríes animales de mayor tamaño. Los pumas son felinos grandes con cabezas menos anchas que de los jaguares. Las

Mazzotti, Frank

485

Estructuras organizacionales, esquemas salariales y calidad educativa en América Latina: un estudio comparativo de los casos de Chile,México,Perú y Ur  

Microsoft Academic Search

Las deficiencias que registran los diferentes países de América Latina en los indicadores relacionados con el rendimiento escolar y la calidad educativa han sido un tema recurrente en la agenda política de los gobiernos de la región durante las últimas décadas. Diferentes estudios sugieren la incidencia de variables como la razón maestro\\/alumno, el gasto per cápita y la formación docente,

Carolina Albán

2005-01-01

486

A constitutive-relationship model for film flow on rough fracture surfaces  

NASA Astrophysics Data System (ADS)

Film flow on fracture surfaces may be an important mechanism for fast flow in unsaturated fractured rocks. Incorporating this mechanism into a numerical model requires knowledge of constitutive relationships for film flow. Based on fractal concepts and a conceptual argument of Tokunaga et al. that water films could be treated as analogues to water in unsaturated porous media, a simple constitutive-relationship model has been developed. The validity of the model is supported by excellent agreements between calculation results and experimental observations for two different fracture surfaces. L'écoulement en film sur les surfaces de fracture peut être un mécanisme important pour l'écoulement rapide dans les roches fracturées non saturées. L'incorporation de ce mécanisme dans un modèle numérique nécessite la connaissance des relations fondamentales pour l'écoulement en film. Basé sur des concepts fractals et sur un argument conceptuel de Tokunaga et al. selon lequel des films d'eau peuvent être considérés comme des analogues de l'eau en milieu poreux non saturé, un modèle simple des relations fondamentales a été développé. La validité de ce modèle est confirmée grâce à une excellente concordance entre les résultats du calcul et les observations expérimentales pour deux surfaces différentes de fractures. El flujo pelicular en la superficie de las fracturas puede ser un mecanismo importante para el flujo rápido en rocas fracturadas no saturadas. Incorporarlo en un modelo numérico requiere conocer las relaciones constitutivas del flujo pelicular. Se ha desarrollado un modelo de una relación constitutiva sencilla partiendo de conceptos fractales y de un argumento conceptual de Tokunaga et al., según el cual las películas de agua pueden ser tratadas como análogos del agua en medios porosos no saturados. La validez del modelo es corroborada por los excelentes ajustes entre los resultados numéricos y las observaciones experimentales en dos superficies de fracturas diferentes.

Liu, H. H.

487

Hydrogeology in North America: past and future  

NASA Astrophysics Data System (ADS)

This paper is a retrospective on the evolution of hydrogeology in North America over the past two centuries, and a brief speculation of its future. The history of hydrogeology is marked by developments in many different fields such as groundwater hydrology, soil mechanics, soil science, economic geology, petroleum engineering, structural geology, geochemistry, geophysics, marine geology, and more recently, ecology. The field has been enriched by the contributions of distinguished researchers from all these fields. At present, hydrogeology is in transition from a state of discovering new resources and exploiting them efficiently for maximum benefit, to one of judicious management of finite, interconnected resources that are vital for the sustenance of humans and other living things. The future of hydrogeology is likely to be dictated by the subtle balance with which the hydrological, erosional, and nutritional cycles function, and the decision of a technological society to either adapt to the constraints imposed by the balance, or to continue to exploit hydrogeological systems for maximum benefit. Although there is now a trend towards ecological and environmental awareness, human attitudes could change should large parts of the populated world be subjected to the stresses of droughts that last for many decades. Cet article est une rétrospective de l'évolution de l'hydrogéologie en Amérique du Nord sur les deux derniers siècles, et une brève évaluation de son futur. L'histoire de l'hydrogéologie est marquée par le développement de plusieurs techniques de terrain telles, l'hydrologie des eaux souterraines, la mécanique des sols, les sciences du sol, la géologie économique, l' ingénierie pétrolière, la géologie structurale, la géochimie, la géophysique, la géologie marine et plus récemment l'écologie. La science a été enrichie par la contribution de plusieurs chercheurs distingués, provenant de toutes ces branches. A présent, l'hydrogéologie est à la transition entre la volonté de découvrir de nouvelles ressources et l' exploitation la plus bénéfique au possible, et un management judicieux des ressources finies, interconnectées, qui sont vitales pour l' approvisionnement des hommes et autres formes de vie. Le futur de l' hydrogéologie sera dicté par la balance subtile dans laquelle intervient les cycles de l'hydrologie, de l'érosion, de la nutrition, et la décision d'une société technologique qui s'adapterait aux contraintes de la balance, ou qui continuerait d'exploiter les systèmes hydrologiques pour un bénéfice maximum. Par ailleurs il y a une nette tendance à inclure les aspects écologiques, les aspects environnementaux, et les changements humains qui pourraient être influencés par les modifications hydrogéologiques observées depuis une dizaine d'années. Este articulo es una retrospectiva sobre la evolución de la hidrogeología en Norte América en los pasados dos siglos, y una breve especulación de su futuro. La historia de la hidrogeología está marcada por desarrollos en muchos campos diferentes tal como hidrología de aguas subterráneas, mecánica de suelos, ciencia del suelo, geología económica, ingeniería del petróleo, geología estructural, geoquímica, geofísica, geología marina, y más recientemente, ecología. El campo se ha enriquecido por las contribuciones de investigadores distinguidos en todos esos campos. Actualmente, la hidrogeología se encuentra en transición de un estado de descubrir nuevos recursos y explotarlos eficientemente para un beneficio máximo, a un estado de gestión juiciosa de recursos finitos, interconectados, que son vitales para el sustento de humanos y otras cosas vivientes. El futuro de la hidrogeología posiblemente esté determinado por el balance sutil con el cual funcionan los ciclos nutricionales, erosionales e hidrológicos, y la decisión de una sociedad tecnológica para ya sea adaptarse a las restricciones impuestas por el balance o para continuar con la explotación de los sistemas hidrogeológicos para un benefici

Narasimhan, T. N.

2005-03-01

488

Quality control method to measure predator evasion in wild and mass-reared Mediterranean fruit flies (Diptera: Tephritidae)  

SciTech Connect

Sterile male insects, mass-reared and released as part of sterile insect technique (SIT) programs, must survive long enough in the field to mature sexually and compete effectively with wild males for wild females. An often reported problem in Mediterranean fruit fly (medfly) Ceratitis capitata (Wiedemann) SIT programs is that numbers of released sterile males decrease rapidly in the field for various reasons, including losses to different types of predators. This is a serious issue in view that most operational programs release sterile flies at an age when they are still immature. Previous field and field-cage tests have confirmed that flies of laboratory strains are less able to evade predators than wild flies. Such tests involve, however, considerable manipulation and observation of predators and are therefore not suitable for routine measurements of predator evasion. Here we describe a simple quality control method with aspirators to measure agility in medflies and show that this parameter is related to the capacity of flies to evade predators. Although further standardization of the test is necessary to allow more accurate inter-strain comparisons, results confirm the relevance of measuring predator evasion in mass-reared medfly strains. Besides being a measure of this sterile male quality parameter, the described method could be used for the systematic selection of strains with a higher capacity for predator evasion. (author) [Spanish] Insectos machos esteriles criados en forma masiva para ser liberados en programas que utilizan la tecnica del insecto esteril (TIE), tienen que tener la capacidad de sobrevivir en el campo el tiempo necesario para poder madurar sexualmente y competir efectivamente con los machos silvestres por hembras silvestres. Un problema frecuentemente reportado por dichos programas de la mosca del Mediterraneo, Ceratitis capitata (Wiedemann), es que el numero de machos esteriles de laboratorio liberados en el campo, decrecen rapidamente por varias razones, incluyendo perdidas debidas a diferentes tipos de depredadores. Estudios anteriores conducidos en el campo, y en jaulas de campo, han confirmado que las cepas de machos de laboratorio tienen menos capacidad de evadir depredadores que los machos silvestres. Estos estudios involucran, sin embargo, una considerable cantidad de manipulacion y observacion de depredadores, por lo que no son adecuados para ser usados como medidas rutinarias en los programas de cria masiva. Aqui describimos un metodo sencillo de control de calidad usando aspiradores para medir agilidad en la mosca del Mediterraneo y mostramos que este parametro esta relacionado a la capacidad de la moscas a evadir a depredadores. Aunque aun es necesario refinar la estandarizacion de este metodo para permitir la comparacion entre cepas, los resultados confirman la importancia de tener un metodo rutinario para medir la capacidad de evasion de depredadores en cepas de cria de laboratorio de la mosca del Mediterraneo. Ademas de medir este parametro de control de calidad de los machos esteriles, el metodo descrito podria tambien ser usado para la seleccion sistematica de cepas con una mayor capacidad de evasion de depredadores. (author)

Hendrichs, M. [Department for Conservation Biology, Vegetation and Landscape Ecology, University of Vienna, Althanstrasse 14, A-1090 Vienna (Austria); Wornoayporn, V.; Hendrichs, J. [Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Wagramerstrasse 5, P.O. Box 100, A-1400 Vienna (Austria); Katsoyannos, B. [Laboratory of Applied Zoology and Parasitology, Department of Agriculture, Aristotle University of Thessaloniki, 541 24 Thessaloniki (Greece)

2007-03-15

489

High-pressure thermal aureoles around two Neoproterozoic synorogenic magmatic epidote-bearing granitoids, Northeastern Brazil  

NASA Astrophysics Data System (ADS)

Unusual high-pressure inner thermal aureoles are described from the Minador and Angico Torto epidote-bearing tonalitic plutons that emplaced into greenschist-facies metasedimentary rocks of the Neoproterozoic Cachoeirinha-Salgueiro belt, northeastern Brazil. The foliated pelitic hornfelses display the mineral assemblage garnet, kyanite, staurolite, muscovite, biotite, plagioclase ± quartz. Rare fibrolite is only found very close to the contacts. Hornfelses display steep mineral lineations and steeply-dipping foliations concordant with magmatic contacts. Leucocratic veinlets containing quartz, oligoclase, garnet, kyanite, staurolite, rutile and ilmenite suggest that limited melting conditions were reached very close to magmatic contacts ( T ? 650 °C, P around 8 kbar). These high-pressure hornfelses form a few meters thick, rigid envelopes around the two plutons. Contrary to known examples of kyanite-bearing hornfelses that recorded high-temperature decompression, the nearly isobaric cooling down to ca. 450 °C is constrained by 3.20-3.30 Si contents of retrogressive phengites from both inner hornfelses and ductilely-deformed tonalite at the pluton margins. Isograds and bathograds are, therefore, apparently telescoped due to HP/LT shearing, possibly caused by subsequent differential vertical movements affecting these two solidified plutons. The unusual depth of emplacement of these syn-kinematic calc-alkaline plutons is explained by a tentative geodynamic model involving a pre-620 Ma-subduction setting. Resumen Las aureolas internas que rodean dos plutones tonalíticos emplazados dentro de rocas cajas en facies esquistos verdes del Cinturón-plegado Cachoeirinha-Salgueiro al noreste de Brasil, contienen hornfelses pelíticos foliados con granate, kyanita, estaurolita, muscovita, biotita, plagioclasa ± cuarzo. Fibrolita es rara ó es encontrada solamente cerca de las zonas de contacto. Los hornfelses desarrollaron foliaciones concordantes con buzamiento fuerte cerca de los contactos magmáticos y muestran lineaciones minerales casi verticales. Venillas leucocraticas contienen cuarzo, oligoclasa, granate, kyanita, estaurolita, rutilo e ilmenita sugiriendo que el límite en las condiciones de fusión fueron cercanas a los contactos magmáticos ( T ? 650 °C, P entorno 8 kbar). Estos hornfelses de alta presión forman una cobertura rígida de poco metros entorno a los dos plutones. Contrariamente a lo conocido en diferentes ejemplos de hornfelses con kyanita con registro de descompresión, la isóbara de enfriamiento para cerca de 450 °C está controlada por el contenido de Si 3.20-3.30 de fengitas retrógradas, en los hornfelses internos y en las márgenes de los plutones donde las tonalitas están deformadas ductilmente. Isógradas y batógradas son, por lo tanto, aparentemente telescopadas debido a cizalla de alta presión/baja temperatura, posiblemente causado por subsecuentes movimientos verticales diferenciales afectando estos dos plutones solidificados. El emplazamiento a una profundidad inusual de estos plutones calci-alcalinos syn-cinemáticos es explicado por un modelo geodinámico tentativo que involucra un escenario de subducción pre-620 Ma.

Caby, Renaud; Sial, Alcides N.; Ferreira, Valderez P.

2009-02-01

490

Deposição pulmonar de tobramicina inalatória antes e após fisioterapia respiratória e uso de salbutamol inalatório em pacientes com fibrose cística colonizados por Pseudomonas aeruginosa* Pulmonary deposition of inhaled tobramycin prior to and after respiratory therapy and use of inhaled albuterol in cystic fibrosis patients colonized with Pseudomonas aeruginosa  

Microsoft Academic Search

Objective: To evaluate whether respiratory therapy followed by the use of inhaled albuterol modifies the pulmonary deposition of inhaled tobramycin in patients with cystic fibrosis (CF) and whether pulmonary deposition correlates with disease severity or genotype. Methods: A prospective study was carried out including patients with CF older than 6 years of age and colonized with Pseudomonas aeruginosa. Exclusion criteria

Milena Baptistella Grotta; Antonio Fernando Ribeiro; Juliana Romanato; Maria Ângela; Gonçalves de Oliveira Ribeiro; José Dirceu Ribeiro

2009-01-01

491

ARTIGO ARTICLE Atenção Básica em Saúde: comparação entre PSF e UBS por estrato de exclusão social no município de São Paulo Primary Health Care: a comparison of PSF and UBS units per stratum of socially excluded users in the city of São Paulo  

Microsoft Academic Search

Within the baseline studies of the PROESF, this article aims to compare the assis- tance modalities PSF and the traditional UBS per stratum of socially excluded users in São Paulo. The study is considering the opinions of users, health professionals and managers. The tool used for this comparison was the Primary Care Assess- ment Tool (PCAT), which contemplates eight di-

Paulo Eduardo Elias; Clara Whitaker Ferreira; Maria Cecília Góis Alves; Amélia Cohn; Vanessa Kishima; Álvaro Escrivão Junior; Adriana Gomes; Aylene Bousquat

492

Obstrucción intestinal postoperatoria por bridas y adherencias en niños: estudio retrospectivo de 90 casos ocurridos en el IESN. 1998-2002 POSTOPERATIVE INTESTINAL OBSTRUCTION FOR BANDS AND ADHERENCES IN CHILDREN: RETROSPECTIVE STUDY OF 90 CASES IN THE IESN. 1998-2002  

Microsoft Academic Search

Objective: To determine the incidence, age and sex more affected, causes, presentation, surgical decision, surgical technique and number of reinterventions for intestinal obstruction. Methods: Descriptive- retrospective study of 90 cases of postoperative intestinal obstruction for bands and adherences from 1998 to 2002 in the IESN. Results: We found an incidence of 20 cases (n=90) of postoperative intestinal obstruction per year,

MARIO MORE FLORES; MELVA BENAVIDES

493

Composición por tallas y edades de las poblaciones de abulón Haliotis fulgens y H. corrugata de la zona de Bahía Tortugas, Baja California Sur, México Size and age composition of the populations of abalone Haliotis fulgens and H. corrugata of Bahía Tortugas, Baja California Sur, Mexico  

Microsoft Academic Search

The size and age composition was determined for pink abalone Haliotis corrugata and green abalone H. fulgens populations of Bahía Tortugas in the western coast of the Baja California Peninsula, Mexico, in October 1997. The biomass was estimated by means of a stratified random design using semiautonomous Hooka diving. The abalones were collected from 1 to 18 m of depth

María Georgina Gluyas-Millán; Jesús Talavera-Maya

2003-01-01

494

La autopercepción de su verdadero estado nutricional fue inadecuada, siendo aún peor en las mujeres. En las madres, un 34% no consumía leche; en el resto, el 73% prefiere la leche entera y menos del 30% la cambiaría por leche descremada. (Palabras clave: estrategia educativa, obesidad infantil, consumo alimentario, actividad física.)  

Microsoft Academic Search

Validation and application of methods to evaluate educative interventions in obesity in schoolchildren Childhood obesity is a public health problem in Chile. In order to advance in the process of developing comprehensive preventive programmes, a pilot project studying schoolchildren in the 4th grade attending public schools and their mothers was carried out with the object of developing, validating and applying

495

Prevalência de tripanossomíase americana, sífilis, toxoplasmose, rubéola, hepatite B, hepatite C e da infecção pelo vírus da imunodeficiência humana, avaliada por intermédio de testes sorológicos, em gestantes atendidas no período de 1996 a 1998 no Hospital Universitário Regional Norte do Paraná (Universidade Estadual de Londrina, Paraná, Brasil)  

Microsoft Academic Search

In order to evaluate the seroprevalence of the american trypanosomiasis, syphilis, toxoplasmosis, rubella, hepatitis B infection, hepatitis C infection and human immunodeficiency virus infection among pregnant women attended at the Hospital Universitário Regional Norte do Paraná, Londrina State University, Paraná, a retrospective study of the serologic results performed in the prenatal routine during the period of June 1996 to June

Edna Maria Vissoci Reiche; Helena Kaminami Morimoto; Grazieli Nogueira Farias; Kátia Regina Hisatsugu; Lilian Geller; Ana Carolina Lima Frade Gomes; Helena Yurika Inoue; Gisele Rodrigues; Tiemi Matsuo

2000-01-01

496

A MODEL PREDICTING THE EFFECTS OF OSCILLATING DISSOLVED OXYGEN TENSION ON THE MOLECULAR WEIGHT OF ALGINATE BY AZOTOBACTER VINELANDII UN MODELO QUE PREDICE LOS EFECTOS DE LAS OSCILACIONES EN LA TENSION DE OXIGENO DISUELTO EN EL PESO MOLECULAR DEL ALGINATO PRODUCIDO POR AZOTOBACTER VINELANDII  

Microsoft Academic Search

A semiempirical model that describes and predicts the evolution of alginate mean molecular weight (MMW) produced by Azotobacter vinelandii, from cultures carried out under oscillating dissolved oxygen tension (DOT), was developed. Data from the literature of cultures carried out at constant DOT was used. The model is able to explain that the main effect on the MMW of alginate is

M. A. Trujillo-Roldán; C. Peña; E. Galindo

497

Lo que los educadores necesitan saber sobre...El agrupamiento por habilidad [y] La compactacion del curriculum [y] Los alumnos dotados y el aprendizaje cooperativo [y] La actividad tutoral. Guias practica (What Educators Need To Know about...Ability Grouping [and] Curriculum Compacting [and] Gifted Students and Cooperative Learning [and] Mentoring. Practitioners' Guides).  

ERIC Educational Resources Information Center

These four pamphlets in Spanish offer guidelines supported by theory-driven quality research that is problem-based, practice-relevant, and consumer-oriented. Each pamphlet has a section summarizing research from the literature or topic notes as well as implications for the classroom. The first guide offers principles for teachers concerning the…

Siegle, Del, Ed.

498

TeCNoLoGíAS De INFoRMACIÓN Y CoMUNICACIÓN PARA LA PReVeNCIÓN Y CoNTRoL De LA INFeCCIÓN PoR eL VIH Y oTRAS ITS  

Microsoft Academic Search

Innovative tools such as the Internet, personal digital assistants, tablet computers, cell phones, and other technologies are a growing arsenal in the global effort to prevent and control HIV and other sexually transmitted infections (STIs). While a variety of information and communication technology tools are in various stages of use for HIV\\/STI prevention, relatively few areas have accumulated a critical

Walter H. Curioso; Magaly M. Blas; Ann E. Kurth; Jeffrey D. Klausner

2007-01-01

499

Los Hispanos: Problemas y Oportunidades. Resumen de la Actual Situacion Demografica, Economica, Social y Politica de los Hispanos en los Estados Unidos y de las Iniciativas Tomadas por la Fundacion Ford Para Hacer Frente a las Necesidades de esta Poblacion en Aumento y Determinar sus Efectos Sobre la Sociedad Estadounidense. Documento de Trabajo de la Fundacion Ford, No. 436.  

ERIC Educational Resources Information Center

The Hispanic population's growing impact on American society has caused the Ford Foundation to explore new Foundation initiatives. The 1980 census revealed 14.6 million Hispanics: 60% Mexican American; 14% Puerto Rican; 6% Cuban, and 20% Other. The Hispanic population in the United States is growing and is characterized by diversity; rapid growth…

Ford Foundation, New York, NY.

500

Dynamic Behavior of Contaminants in the Water Distribution Network of Cuernavaca Mexico, a Real Application of Multiobjective Distributed Reinforcement Learning Comportamiento Dinámico de Contaminantes en la Red de Distribución de Agua de la Ciudad de Cuernavaca México, una Aplicación Real de Aprendizaje por Refuerzo Distribuido Multi-Objetivo  

Microsoft Academic Search

Water systems often allow efficient water uses via water reuse and\\/or recirculation. The design of the network layout connecting water-using processes is a complex problem which involves several criteria to optimize. The use of the water pinch approach to define which of the effluents from unitary operations are most convenient to reuse is a good alternative used by some practitioners.

Carlos Eduardo Mariano Romero; Eduardo F. Morales Manzanares

2008-01-01