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1

Qualidade da bebida de café de frutos cereja submetidos a diferentes manejos pós-colheita  

Microsoft Academic Search

Resumo _ O objetivo deste trabalho foi avaliar a qualidade da bebida de café obtida de frutos cereja submetidos a diferentes práticas de manejo pós-colheita, considerando-se infecções iniciadas na planta e persistentes durante o tempo de exposição às fontes infectantes. Admitiu-se que os grãos de cereja recolhidos na planta têm máximo potencial de qualidade da bebida, avaliada por meio de

José Laércio Favarin; André Luis Gnaccarini Villela; Maria Heloisa Duarte Moraes; Helena Maria Carmignani Pescarin Chamma; José Dias Costa; Durval Dourado-Neto

2004-01-01

2

QUALIDADE FISIOLÓGICA E SANITÁRIA DE SEMENTES DE ARROZ COM DIFERENTES GRAUS DE UMIDADE E TRATADAS COM FUNGICIDA1  

Microsoft Academic Search

RESUMO - O presente estudo teve por objetivo analisar o efeito do tratamento químico, com diferentes concentrações de calda fungicida, sobre a qualidade fisiológica e sanitária das sementes de arroz, durante período de seis meses de armazenamento hermético. Foram utilizadas sementes de arroz, variedades BR-IRGA 410, BRS PELOTA e EMBRAPA 7 TAIM, colhidas na região de Pelotas, RS, na safra

JULIANO ZAMBRANO SCHUCH; ORLANDO ANTONIO; LUCCA FILHO; SILMAR TEICHERT PESKE; LUIZ MARCELO; COSTA DUTRA; MIRIAN FERNANDES

3

Crystallic silver amalgam--a novel electrode material.  

PubMed

A crystallic silver amalgam was found to be a suitable working electrode material for voltammetric determination of electrochemically reducible organic nitro-compounds. Optimum conditions for crystal growth were found, the crystal surface was investigated by atomic force microscopy in tapping mode and single crystals were used for the preparation of quasi-cylindrical single crystal silver amalgam electrode (CAgAE). An electrochemical behavior of this alternative electrode material was investigated in aqueous media by direct current voltammetry, cyclic voltammetry (CV), differential pulse voltammetry (DPV) and adsorptive stripping voltammetry (AdSV) using 4-nitrophenol as a model compound. Applicable potential windows of the CAgAE were found comparable with those obtained at a hanging mercury drop electrode, providing high hydrogen overpotential, and polished silver solid amalgam electrode. Thanks to the smooth single crystal electrode surface, the effect of the passivation is not too pronounced, direct DPV determination of 100 ?mol l(-1) of 4-nitrophenol at CAgAEs in 0.2 mol l(-1) acetate buffer pH 4.8 provides a RSD around 1.5% (n = 15). DPV calibration curves of 4-nitrophenol are linear in the whole concentration range 1-100 ?mol l(-1) with a limit of quantification of 1.5 ?mol l(-1). The attempt to increase sensitivity by application of AdSV was not successful. The mechanism of 4-nitrophenol reduction at CAgAE was investigated by CV. PMID:21799953

Danhel, Ales; Mansfeldova, Vera; Janda, Pavel; Vyskocil, Vlastimil; Barek, Jiri

2011-07-28

4

do maracujazeiro sob diferentes doses de potássio aplicadas por fertirrigação doses de potássio aplicadas por fertirrigação doses de potássio aplicadas por fertirrigação doses de potássio aplicadas por fertirrigação doses de potássio aplicadas por fertirrigação  

Microsoft Academic Search

Abstract: Abstract: Abstract: Abstract: The objective of this work was to study the effect of different doses of potassium applied through fertigation by drip irrigation system on the length, area and spatial distribution of the root system of the yellow passion fruit plant (Passiflora edulis Sims. f. flavicarpa Deg), using digital image technique. The experiment was conducted at the Experimental

Valdemício F. de Sousa; Marcos V. Folegatti; Maurício A. Coelho Filho; José A. Frizzone

5

Portable exhausters POR-004 SKID B, POR-005 SKID C, POR-006 SKID D storage plan  

SciTech Connect

This document provides a storage plan for portable exhausters POR-004 SKID B, POR-005 SKID C, AND POR-006 SKID D. The exhausters will be stored until they are needed by the TWRS (Tank Waste Remediation Systems) Saltwell Pumping Program. The storage plan provides criteria for portable exhauster storage, periodic inspections during storage, and retrieval from storage.

Nelson, O.D.

1997-09-04

6

Detección y estudio mediante Fluorescencia Inducida por Láser de radicales libres formados por Disociación Multifotónica Infrarroja  

NASA Astrophysics Data System (ADS)

Una de las principales aplicaciones actuales de los procesos de disociación multifotónica inducidos por radiación láser infrarroja (DMI) es la producción de radiales libres, con el fin de estudiar sus propiedades cinéticas y espectroscópicas. La disociación de moléculas poliatómicas en el IR con láseres de CO2 tiene lugar desde la superficie de energía molecular mas baja y conduce generalmente a la formación de fragmentos en el estado electrónico fundamental, con diversos grados de excitación vibracional. En el Grupo de Procesos Multifotónicos del Instituto de Estructura de la Materia del C.S.I.C. hemos puesto a punto la técnica de Fluorescencia Inducida por Láser (LIF) para la detección y análisis en tiempo real de los fragmentos producidos en la DMI inducida mediante uno o dos campos láseres de diferentes longitudes de onda. Objetivos de nuestro trabajo han sido el estudio de los canales de disociación mayoritarios y de las especies transitoria producidas, así como de la distribución de energía interna con que éstas son generadas. En particular hemos detectado mediante LIF las especies: C2, CF, CH, SiH2, CF2, CH2, SiHCl, y CF3 a partir de la disociación de, entre otras, las siguientes moléculas: C2H3Br, C3F6, C4H8Si, C2H5ClSi y CH5ClSi. En este trabajo presentamos algunos de los resultados obtenidos mediante el estudio por LIF de estos radicales: estudio temporal de la señal LIF obtenida con determinación de tiempos de vida, espectros de excitación y fluorescencia, temperaturas vibracionales de formación, variación de la intensidad LIF con el tiempo de retraso entre los láseres de disociación y prueba, etc.

Santos, M.; Díaz, L.; Torresano, J. A.; Rubio, L.; Samoudi, B.

7

Efeito da idade cronológica na distribuição dos futebolistas por escalões de formação e pelas diferentes posições especificas  

Microsoft Academic Search

Relative age effects among youth soccer players according to playing positions This study analysed the distribution of the birthdates from soccer players according to each player's age-group and specific position on the field. The players from the Lisbon Soccer Association (n=188) were divided into their age-groups during the 2004\\/2005 season: Under 8s (n=26), Under 11s (n=39), Under 13s (n=43), Under

H. A. Folgado; P. F. Caixinha; J. Sampaio; V. Maçãs

8

CARACTERÍSTICAS DE LA POLÍTICA CRIMINAL ADOPTADA POR CUBA EN RELACIÓN AL TRÁFICO Y USO DE LA DROGA, PSICOFÁRMACOS Y OTRAS SUSTANCIAS DE EFECTOS SIMILARES  

Microsoft Academic Search

La droga, psicofármacos y otras sustancias de similares efectos, han ido evolucionando a lo largo de la historia con sus características específicas, de acuerdo a las condiciones de la sociedad, pero en Cuba, este flagelo ha sido atendido y controlado especialmente por las diferentes instituciones de nuestro Estado, debido a las graves consecuencias que acarrea para la población, específicamente para

Yaniuska Pose Roselló

2011-01-01

9

DISTENSION ABDOMINAL POR HERPES ZOSTER  

Microsoft Academic Search

Resumen Se presenta un caso de distensión abdominal por parálisis parietal debida a herpes zoster con erup- ción cutánea a nivel del 11° dermatoma dorsal izquierdo. El déficit motor en el zoster es inusual (2-3% de los casos publicados) y generalmente se observa en las extremidades. La frecuencia del compromiso de los músculos abdominales en series clínicas se estima en

FABIO A. BARROSO

10

Oral Lichenoid Contact Lesions to Mercury and Dental Amalgam--A Review  

PubMed Central

Human oral mucosa is subjected to many noxious stimuli. One of these substances, in those who have restorations, is dental amalgam which contains mercury. This paper focuses on the local toxic effects of amalgam and mercury from dental restorations. Components of amalgam may, in rare instances, cause local side effects or allergic reactions referred to as oral lichenoid lesions (OLLs). OLLs to amalgams are recognised as hypersensitivity reactions to low-level mercury exposure. The use of patch testing to identify those susceptible from OLL is explored, and recommendations for removing amalgam fillings, when indicated are outlined. We conclude that evidence does not show that exposure to mercury from amalgam restorations poses a serious health risk in humans, except for an exceedingly small number of hypersensitivity reactions that are discussed.

McParland, Helen; Warnakulasuriya, Saman

2012-01-01

11

Oral lichenoid contact lesions to mercury and dental amalgam--a review.  

PubMed

Human oral mucosa is subjected to many noxious stimuli. One of these substances, in those who have restorations, is dental amalgam which contains mercury. This paper focuses on the local toxic effects of amalgam and mercury from dental restorations. Components of amalgam may, in rare instances, cause local side effects or allergic reactions referred to as oral lichenoid lesions (OLLs). OLLs to amalgams are recognised as hypersensitivity reactions to low-level mercury exposure. The use of patch testing to identify those susceptible from OLL is explored, and recommendations for removing amalgam fillings, when indicated are outlined. We conclude that evidence does not show that exposure to mercury from amalgam restorations poses a serious health risk in humans, except for an exceedingly small number of hypersensitivity reactions that are discussed. PMID:22888200

McParland, Helen; Warnakulasuriya, Saman

2012-07-24

12

[Amalgam--a question of belief? A review and assessment of the current literature].  

PubMed

Several hundred written sources have been researched regarding old and new findings. Forgotten and new facts are covered in four chapters. One of the authors is a retired industrial chemist, and the other a dental surgeon. In the first section the natural and synthetic sources of mercury are explained. In every scientific study the ubiquity of mercury for billions of years must be taken into consideration. The second chapter looks at the toxicology of mercury and its compounds. Well known catastrophies in Japan and Iraq are depicted. Individual intoxications are hardly mentioned in literature. The third chapter is devoted to the dental amalgam, a silver alloy with both physical-chemical properties, and corrosive and thermal behaviour. An attempt is made to define the mercury balance. The forth paragraph deals with the disposal and recycling of mercury. Many dental associations are currently discussing the possibility of recycling amalgam, which is rather a stable silver alloy than a volatile mercury compound. A controlled landfill disposal of dental amalgam will absorb a certain quantity of mercury during its life cycle, and is positive. Recycling is expensive, energy consuming and causes additional exposure. Unless silver and mercury become rare metals, recycling should not be considered. As yet no worldwide regulatory procedures exist. PMID:9741247

Metzler, H; Metzler, C

1998-01-01

13

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

14

Diferentes metodologias aplicadas ao ensino de astronomia no Ensino Médio  

NASA Astrophysics Data System (ADS)

O presente trabalho de intervenção foi realizado junto à Escola Estadual Colònia dos Pescadores na cidade de Caraguatatuba, com très turmas do terceiro ano do Ensino Médio, envolvendo 119 alunos com idades entre 16 e 19 anos. A fase inicial foi composta de um questionário de vinte questíes dissertativas e objetivas, aplicado pelo professor titular da sala, que era o mesmo nas très turmas, para diagnosticar nos educandos os conceitos prévios sobre Astronomia e, partindo destes realizar um trabalho de intervenção nas classes envolvidas utilizando, em cada uma, metodologias diferentes: (A) sob forma de seminários, elaborados e apresentados pelos educandos, no qual o educador faz apenas as intervençíes necessárias; (B) de forma tradicional, com auxílio de multimídias para desenvolvimento das aulas e a terceira (C) tradicional, fazendo uso exclusivo de lousa e giz. Ao final do trabalho os alunos responderam novamente o questionário inicial para diagnosticar dentre as très metodologias utilizadas qual apresentou melhores aplicaçíes, os resultados iniciais foram comparados com os finais. Quando questionados a respeito do significado de Astronomia observou-se inicialmente que os acertos na turma A foram de 100%, turma B: 64%, turma C: 84%, após a intervenção os acertos foram: 100%, 97% e 85% respectivamente, demonstrando que houve um avanço significativo na turma B, a turma A manteve seu índice e a turma C evoluiu, porém não tanto quanto a B. Quando interrogados sobre quantos planetas vocè acha que existem em nosso Sistema Solar? os acertos foram: turma A: 39%, turma B: 48% e turma C: 46%, após o desenvolvimento do trabalho os acertos foram 94%, 97% e 90% respectivamente. Dentro das respostas obtidas observa-se que a metodologia tradicional com o auxílio de multimeios, aplicada na turma B, demonstrou melhores resultados, sendo a mais significativa. Outra conclusão muito importante é que apesar de o tema Astronomia ser amplamente recomendado, este não é ensinado, nem no Ensino Fundamental, nem no Ensino Médio.

Albrecht, E.; Voelzke, M. R.

2009-03-01

15

Análise do desgAste produzido no prepAro de cAnAis rAdiculAres com o sistemA oscilAtório em três diferentes velocidAdes AnAly SiS Of the PROdUCed COnSUming in the ROOt CAnAlS PRePARAtiOn with the OSCillAt ORy Sy Stem in thRee diffeRent SPeedS  

Microsoft Academic Search

resumo Introdução: Este estudo avalia, in vitro, a quantidade de desgaste produzido por instrumentos endodônti- cos de aço inoxidável, acionados a um sistema automatizado de movimento oscilatório, em três diferentes velocidades: 6.000, 8.000 e 10.000 rotações por minuto. Métodos: Para isso, foram utilizadas 18 raízes palatinas de molares superiores, que foram distribuídas aleatoriamente em três grupos experimentais e individualmente pesadas

Orlando Limongi; Anelise Vieira Bernardes; Patrícia Rodriguez; Silveira Netto; Tiago André; Fontoura de Melo; Renata Grazziotin Soares

16

Portable exhauster POR-007/Skid E and POR-008/Skid F storage plan  

SciTech Connect

This document provides storage requirements for 1,000 CFM portable exhausters POR-O07/Skid E and POR-008/Skid F. These requirements are presented in three parts: preparation for storage, storage maintenance and testing, and retrieval from storage. The exhauster component identification numbers listed in this document contain the prefix POR-007 or POR-008 depending on which exhauster is being used.

Nelson, O.D.

1998-07-25

17

Organismos que causan enfermedades transmitidas por los ...  

Center for Food Safety and Applied Nutrition (CFSAN)

Text Version... Staphylococcus aureus Envenenamiento por consumo de alimentos con estafilococos De 1 a 6 horas Inicio repentino de náuseas y vómitos ... More results from www.fda.gov/downloads/food/foodborneillnesscontaminants

18

AVALIAÇÃO DE ÁGUA-DE-COCO OBTIDA POR DIFERENTES MÉTODOS DE CONSERVAÇÃO Evaluation of coconut water obtained by different methods of conservation  

Microsoft Academic Search

The cultivation of green coconut is expanding in the last years and at present it is observed a trend to an increase of the production of green coconut to obtain coconut water. This fact requires an offer to the coconut water market a product with great stability and shelf life. In this context, the purpose of this work was to

Geraldo Arraes Mai

19

Estudo comparativo das amplitudes de movimento da coluna cervical em idosos com diferentes níveis de aptidão  

Microsoft Academic Search

REsumo Introdução:Este estudo tem como objetivo analisar e comparar as amplitudes de movimento (ADM) da coluna cervical em dois grupos de idosos com níveis diferentes de aptidão física. Métodos: Foram selecionados 40 voluntários assintomáticos com idade entre 60-75 anos e subdivididos pelo seu respectivo nível de aptidão física. Os voluntários então foram submetidos a mensuração de suas respectivas ADM pelo

Cristiano Oliveira de Carvalho; Denis Aron; José Alberto; Alves Silva; Luis Flávio Horta Bicalho; Ana Paula; Leonardo Oliveira Pena Costa; Vânia Ferreira de Figueiredo

2006-01-01

20

ANÁLISIS PRELIMINAR DE COMPUESTOS FENÓLICOS Y CAPSAICINOIDES EN VARIEDADES DE CHILE CON DIFERENTE CAPACIDAD PUNGENTE  

Microsoft Academic Search

El chile jalapeño provoca un alto nivel de irritación a diferentes niveles del tracto estomacal en comparación con el chile habanero. A pesar de que el chile habanero presenta una mayor capacidad pungente, no es irritante. A la fecha se desconoce la naturaleza de los compuestos responsables de este efecto. En el presente trabajo se reporta el análisis preliminar de

Salvador Horacio; Guzmán Maldonado; Irineo Torres Pacheco; Mario González Chavira; María Alejandra; Mora Avilés; Guadalupe Herrera Hernández; David Hernández López

21

Desempenho de um trator operando em solo com diferentes tipos de cobertura vegetal  

Microsoft Academic Search

RESUMO: A eficiência de um trator para desenvolver esforço tratório depende da interação entre o rodado e o solo, envolvendo um complexo conjunto de fatores: característica do rodado, patinagem, transferência de peso do trator, tipo de solo, umidade, estado de compactação, tipo de cobertura do solo, entre outros, que proporcionam diferentes condições de trabalho e interferem no desempenho do trator.

Antonio Gabriel Filho; Suedêmio de L. Silva; Alcir J. Modolo; João C. M. da Silveira

2004-01-01

22

Consequences of POR mutations and polymorphisms.  

PubMed

P450 oxidoreductase (POR) transports electrons from NADPH to all microsomal cytochrome P450 enzymes, including steroidogenic P450c17, P450c21 and P450aro. Severe POR mutations A287P (in Europeans) and R457H (in Japanese) cause the Antley-Bixler skeletal malformation syndrome (ABS) plus impaired steroidogenesis (causing genital anomalies), but the basis of ABS is unclear. We have characterized the activities of ?40 POR variants, showing that assays based on P450c17 activities, but not cytochrome c assays, correlate with the clinical phenotype. The human POR gene is highly polymorphic: the A503V sequence variant, which decreases P450c17 activities to ?60%, is found on ?28% of human alleles. A promoter polymorphism (?8% of Asians and ?13% of Caucasians) at -152 reduces transcriptional activity by half. Screening of 35 POR variants showed that most mutants lacking activity with P450c17 or cytochrome c also lacked activity to support CYP1A2 and CYP2C19 metabolism of EOMCC (a fluorogenic non-drug substrate), although there were some remarkable differences: Q153R causes ABS and has ?30% of wild-type activity with P450c17 but had 144% of WT activity with CYP1A2 and 284% with CYP2C19. The effects of POR variants on CYP3A4, which metabolizes nearly 50% of clinically used drugs, was examined with multiple, clinically relevant drug substrates, showing that A287P and R457H dramatically reduce drug metabolism, and that A503V variably impairs drug metabolism. The degree of activity can vary with the drug substrate assayed, as the drugs can influence the conformation of the P450. POR is probably an important contributor to genetic variation in both steroidogenesis and drug metabolism. PMID:21070833

Miller, Walter L; Agrawal, Vishal; Sandee, Duanpen; Tee, Meng Kian; Huang, Ningwu; Choi, Ji Ha; Morrissey, Kari; Giacomini, Kathleen M

2010-11-09

23

Trauma ocular ocupacional por corpo estranho superficial  

Microsoft Academic Search

Objetivo: Estudar a ocorrência de trauma ocular provocado por corpos estranhos superficiais durante a realização de atividades ocupacionais. Métodos: Estudo prospectivo de pacientes portadores de trauma ocular ocupacional atendidos no serviço de urgência do Hospital Getúlio Vargas (HGV) \\/ Universidade Federal do Piauí (UFPI), no período de outubro de 1997 a março de 1999. Os seguintes dados foram coletados: idade,

Fernando Antônio de Macedo Leal; Arthur Pereira da Silva e Filho; Daniela Martins Neiva; Josilene Carvalho Soares Learth; Durwagner Barros da Silveira

2003-01-01

24

Evaluaci6n de Diferentes Modelos Auxiliares en Inventarios de Recursos Naturales: Estimacion de Areas 1  

Microsoft Academic Search

Resumen-Los inventarios de recursos naturales se enfrentan a una serie de obstaculos que influyen en gran medida en la precision y por 10 tanto en la confiabilidad de los analisis de datos. El diseiio de muestreo y el analisis de los datos estan muy relacionados; por 10 que la decision sobre un diseiio de muestreo para un caso de estudio

Fabian Islas; Gerardo H. Terrazas Gonzalez; Juan Islas Gutierrez

25

Películas delgadas de CdS: Preparación y comparación de propiedades usando diferentes técnicas de depósito  

Microsoft Academic Search

Se depositaron películas delgadas de CdS sobre substratos de vidrio usando la técnica de depósito por baño químico en dos modalidades: agitando magnéticamente la solución del baño y vibrándola con frecuencias de ultrasonido, así como por la técnica de sublimación en espacio cerrado. Se comparan las propiedades encontradas en este material mediante el estudio de su morfología, su estructura cristalina,

A. I. Oliva; O. Solis-Canto; R. Castro-Rodríguez; Víctor Sos; P. Quintana

26

Distribución espacial de cúmulos y asociaciones estelares con diferentes edades en la Nube Mayor de Magallanes  

NASA Astrophysics Data System (ADS)

Sobre la base de observaciones realizadas en Cerro Tololo y el Casleo, se presenta un catálogo con fotometría UBV integrada de 504 cúmulos y 120 asociaciones estelares en la Nube Mayor de Magallanes. Se determinan edades en términos de los tipos SWB y se identifican 38 cúmulos tipo VII, muchos de los cuales pueden ser cúmulos globulares clásicos. El tamaño de las distribuciones espaciales crece uniformemente con la edad (tipo SWB), en tanto que existe una diferencia en el cociente axial entre los grupos más jóvenes y más viejos que 30 millones de años, lo que implica una orientación aproximadamente de frente para los primeros y una posición inclinada ~ 45o para el segundo grupo. Las asimetrías en las distribuciones espaciales, juntamente con la falta de coincidencia de los centroides de los diferentes grupos de edad, sugiere que el disco de la Nube Mayor de Magallanes fue severamente perturbado en el pasado.

Bica, E.; Clariá, J. J.; Dottori, H.; Santos, J. F. C.; Piatti, A. E.

27

Efeito do praziquantel incorporado a lipossomas nos diferentes estágios de desenvolvimento dos ovos de Schistosoma mansoni  

Microsoft Academic Search

RESUMO A esquistossomose mansônica é causada pelo trematódeo digenético intravascular Schistosoma mansoni. Para o tratamento dessa enfermidade o praziquantel (PZQ) e a oxamniquina (OXA) são os fármacos escolhidos. No entanto, esses fármacos apresentam limitações quanto à ação e casos de resistência ou tolerância já foram relatados. Por esse motivo, são necessários os estudos de novas alternativas que visam melhorar os

M. C. Pinto; A. L. R. Souza; S. M. Allegretti

28

Immunogenicity of meningococcal PorA antigens in OMV vaccines  

Microsoft Academic Search

For the prevention of meningococcal infection caused by group B meningococci, the Netherlands Vaccine Institute (NVI) has developed a hexavalent Porin A (PorA) based Outer Membrane Vesicle (OMV) vaccine (Hexamen). In various clinical studies with HexaMen, differences in the immune responses to the individual PorAs were observed. Factors involved in the development of the PorA specific immune response were studied,

T. A. Luijkx

2006-01-01

29

Desinfestação e estabelecimento in vitro de explantes de bananeiraIAC 2001´ em diferentes concentrações de hipoclorito de sódio  

Microsoft Academic Search

Resumo - A contaminação de explantes ocasiona grandes perdas na micropropagação de plantas, comprometendo a fase de estabelecimento in vitro. Com o objetivo de obter material vegetal livre de contaminação, foram avaliadas diferentes concentrações de hipoclorito de sódio na desinfestação de explantes de bananeira (Musa sp.) cultivar IAC 2001. Os explantes foram imersos em soluções de hipoclorito de sódio contendo

Gustavo Alves Pereira; Bruno Vasconcellos Ribeiro; Humberto de Carvalho Marcílio; Marcílio Bobroff Santaella

30

CARACTERIZAÇÃO MOLECULAR DE BUTIAZEIRO POR MARCADORES RAPD1  

Microsoft Academic Search

RESUMO- O grupo botânico Arecaceae é de extremo interesse por compreender plantas em extinção e por apresentar um grande potencial de exploração econômica. O butiazeiro (Butia capitata (Mart.) Becc.) ocorre naturalmente no Sul do Brasil. Sua caracterização molecular é de extremo interesse para futuros trabalhos de melhoramento genético. Assim sendo, verificou-se a variabilidade genética existente entre vinte e dois genótipos

ADRISE MEDEIROS NUNES; VALMOR JOÃO BIANCHI; JOSÉ CARLOS FACHINELLO; ALEXANDRE ZANARDO DE CARVALHO; GUILHERME CARDOSO

31

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

32

O Ensino da Astronomia no Ensino Médio sob Diferentes Abordagens Metodológicas  

NASA Astrophysics Data System (ADS)

O presente trabalho, sobre a intervenção de metodologias de ensino, foi desenvolvido na Escola Estadual Colônia dos Pescadores, na cidade de Caraguatatuba - SP, em três turmas do terceiro ano do Ensino Médio, perfazendo um total de 119 educandos, entre 16 e 19 anos. Antes de iniciar-se a intervenção, um questionário de vinte perguntas objetivas e dissertativas foi desenvolvido, aplicado pelo professor da classe, que ministrou as aulas correspondentes. Este questionário foi o mesmo em todas as três classes com o objetivo de diagnosticar o conhecimento prévio dos alunos sobre Astronomia. Começando a intervenção nas turmas, o professor envolvido usou três diferentes metodologias de ensino: (A) em forma de seminários, elaborados e apresentados pelos alunos, nos quais o professor fazia apenas as intervenções necessárias, (B) na forma tradicional, com a ajuda de multimídia para o desenvolvimento das aulas e a terceira (C) a tradicional, fazendo uso exclusivo de lousa e giz. No final do trabalho os alunos responderam o mesmo questionário novamente, de modo que os três métodos utilizados puderam ser comparados. Os resultados apresentados após a intervenção foram melhores que os resultados iniciais indicando a ocorrência de uma aprendizagem significativa. Quando os estudantes foram inicialmente questionados sobre quantos planetas existem no nosso sistema solar, a classe A obteve 39% de respostas certas, a classe B 48% e a classe C 46%, mas após o desenvolvimento das atividades, as classes obtiveram respectivamente 94%, 97 % e 90% de aproveitamento. No término do bimestre, foi sugerido aos educandos que elaborassem uma história em quadrinhos, a qual serviu para averiguar se os conceitos inicialmente observados foram alterados e se novos foram agregados. A análise das histórias foi dividida em três partes: Criatividade; Temas abordados; Emprego correto dos conceitos estudados. Ao final quatorze histórias foram confeccionadas. O aprendizado foi tão significativo que os alunos produzira m histórias em quadrinhos, com informações muito ricas. Outro dado muito importante é que, apesar da Astronomia ser um tema amplamente recomendado, não é ensinado nem em escolas de ensino fundamental nem no ensino médio.

Voelzke, Marcos Rincon; Albrecht, Evonir

2011-12-01

33

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

34

Identification of Porphyromonas gingivalis proteins secreted by the Por secretion system.  

PubMed

The Gram-negative bacterium Porphyromonas gingivalis possesses a number of potential virulence factors for periodontopathogenicity. In particular, cysteine proteinases named gingipains are of interest given their abilities to degrade host proteins and process other virulence factors such as fimbriae. Gingipains are translocated on the cell surface or into the extracellular milieu by the Por secretion system (PorSS), which consists of a number of membrane or periplasmic proteins including PorK, PorL, PorM, PorN, PorO, PorP, PorQ, PorT, PorU, PorV (PG27, LptO), PorW and Sov. To identify proteins other than gingipains secreted by the PorSS, we compared the proteomes of P. gingivalis strains kgp rgpA rgpB (PorSS-proficient strain) and kgp rgpA rgpB porK (PorSS-deficient strain) using two-dimensional gel electrophoresis and peptide-mass fingerprinting. Sixteen spots representing 10 different proteins were present in the particle-free culture supernatant of the PorSS-proficient strain but were absent or faint in that of the PorSS-deficient strain. These identified proteins possessed the C-terminal domains (CTDs), which had been suggested to form the CTD protein family. These results indicate that the PorSS is used for secretion of a number of proteins other than gingipains and that the CTDs of the proteins are associated with the PorSS-dependent secretion. PMID:23075153

Sato, Keiko; Yukitake, Hideharu; Narita, Yuka; Shoji, Mikio; Naito, Mariko; Nakayama, Koji

2012-11-08

35

Compton imaging with the PorGamRays spectrometer  

Microsoft Academic Search

The PorGamRays project aims to develop a portable gamma-ray detection system with both spectroscopic and imaging capabilities. The system is designed around a stack of thin Cadmium Zinc Telluride (CZT) detectors. The imaging capability utilises the Compton camera principle. Each detector is segmented into 100 pixels which are read out through custom designed Application Specific Integrated Circuits (ASICs). This device

D. S. Judson; A. J. Boston; P. J. Coleman-Smith; D. M. Cullen; A. Hardie; L. J. Harkness; L. L. Jones; M. Jones; I. Lazarus; P. J. Nolan; V. Pucknell; S. V. Rigby; P. Seller; D. P. Scraggs; J. Simpson; M. Slee; A. Sweeney

2011-01-01

36

TESTES F PARA MODELOS MISTOS DE GRUPOS DE EXPERIMENTOS COM CULTIVARES AVALIADAS EM DIFERENTES FASES DA LUA, MESES E ANOS1  

Microsoft Academic Search

RESUMO - Com este estudo objetivou -se determinar as expressões que justifiquem a aplicação dos testes F em grupos de experimentos com cultivares, avaliadas em diferentes fases da lua, épocas de semeadura e anos. Para efetuar a análise conjunta, adotou -se um modelo linear misto, no qual os efeitos de cultivares (C), fases da lua (L), épocas (E) e suas

AQUILES JÚNIOR DA CUNHA; AUGUSTO RAMALHO DE MORAIS; ROVILSON JOSÉ DE SOUZA; CRISTIANE R. B. AGUIRRE RAMOS

37

Restored functional immunogenicity of purified meningococcal PorA by incorporation into liposomes  

Microsoft Academic Search

The impact of the conformation, lipooligosaccharide (LOS)-depletion and the presentation form of outer membrane protein PorA from Neisseria meningitidis (PorA) subtype P1.7-2,4 on the immune response in mice was studied. Native PorA was purified from outer membrane vesicles (OMVs) derived from meningococci and reconstituted into liposomes. The conformation of PorA after purification from OMVs and reconstitution in liposomes was monitored

Carmen Arigita; Gideon F. A. Kersten; Ton Hazendonk; Wim E. Henninka; Daan J. A. Crommelin; Wim Jiskoot

2003-01-01

38

El Instituto Nacional del Cáncer publica nuevo atlas de mortalidad por cáncer  

Cancer.gov

El Instituto Nacional del Cáncer (NCI, por sus siglas en inglés) ha publicado un nuevo atlas, el Atlas de Mortalidad por Cáncer en los Estados Unidos, 1950-94, que muestra los patrones geográficos de las tasas de mortalidad por cáncer durante más de cuatro décadas, en más de 3.000 condados a lo largo del país.

39

ZOONOSES CAUSADAS POR PARASITAS INTESTINAIS DE CÃES E O PROBLEMA DO DIAGNÓSTICO  

Microsoft Academic Search

RESUMO Os últimos 20 anos foram marcados por um intenso progresso tecnológico e por importantes alterações culturais e sociais com reflexos tanto em saúde humana como animal. Entretanto, infelizmente, as zoonoses causadas por parasitas intestinais de cães não deixaram de ser um problema permanente de saúde pública nos países em desenvolvimento, e uma preocupação crescente nos países desenvolvidos. A eficácia

S. Katagiri; T. C. G. Oliveira-Sequeira

2007-01-01

40

Acceptance test report for portable exhauster POR-007/Skid E  

SciTech Connect

This document describes Acceptance Testing performed on Portable Exhauster POR-007/Skid E. It includes measurements of bearing vibration levels, pressure decay testing, programmable logic controller interlocks, high vacuum, flow and pressure control functional testing. The purpose of Acceptance testing documented by this report was to demonstrate compliance of the exhausters with the performance criteria established within HNF-0490, Rev. 1 following a repair and upgrade effort at Hanford. In addition, data obtained during this testing is required for the resolution of outstanding Non-conformance Reports (NCR), and finally, to demonstrate the functionality of the associated software for the pressure control and high vacuum exhauster operating modes provided for by W-320. Additional testing not required by the ATP was also performed to assist in the disposition and close out of receiving inspection report and for application design information (system curve). Results of this testing are also captured within this document.

Kriskovich, J.R.

1998-07-24

41

Compton imaging with the PorGamRays spectrometer  

NASA Astrophysics Data System (ADS)

The PorGamRays project aims to develop a portable gamma-ray detection system with both spectroscopic and imaging capabilities. The system is designed around a stack of thin Cadmium Zinc Telluride (CZT) detectors. The imaging capability utilises the Compton camera principle. Each detector is segmented into 100 pixels which are read out through custom designed Application Specific Integrated Circuits (ASICs). This device has potential applications in the security, decommissioning and medical fields. This work focuses on the near-field imaging performance of a lab-based demonstrator consisting of two pixelated CZT detectors, each of which is bonded to a NUCAM II ASIC. Measurements have been made with point 133Ba and 57Co sources located ˜35mm from the surface of the scattering detector. Position resolution of ˜20mm FWHM in the x and y planes is demonstrated.

PorGamRays Collaboration Judson, D. S.; Boston, A. J.; Coleman-Smith, P. J.; Cullen, D. M.; Hardie, A.; Harkness, L. J.; Jones, L. L.; Jones, M.; Lazarus, I.; Nolan, P. J.; Pucknell, V.; Rigby, S. V.; Seller, P.; Scraggs, D. P.; Simpson, J.; Slee, M.; Sweeney, A.

2011-10-01

42

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

43

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.

Strogolova, Vera; Orlova, Marianna; Shevade, Aishwarya

2012-01-01

44

Proposed Standardization of Neisseria meningitidis PorA Variable-Region Typing Nomenclature  

PubMed Central

Neisseria meningitidis isolates are conventionally classified by serosubtyping, which characterizes the reactivities of the PorA outer membrane protein variable-region (VR) epitopes with monoclonal antibodies (MAbs). A newer method (PorA VR typing) uses predicted amino acid sequences derived from DNA sequence analysis. The resulting classification schemes are not standardized, offering conflicting and sometimes irreconcilable data from the two methods. In this paper, we propose a standardization of the PorA VR typing nomenclature that incorporates serologic information from traditional PorA serosubtyping with molecular data from predicted VR sequences. We performed a comprehensive literature and database search, generating a collection of strains and DNA sequences that reflects the diversity within PorA that exists to date. We have arranged this information in a comprehensive logical model that includes both serosubtype and PorA VR type assignments. Our data demonstrate that the current panel of serosubtype-defining MAbs underestimates PorA VR variability by at least 50%. Our proposal for VR typing is informative because amino acid sequence and serologic information, when serosubtype-defining MAbs are available, can be deduced simultaneously from the PorA VR designation. This scheme will be useful in future classification and applied epidemiologic studies of N. meningitidis, being a systematic way of selecting PorA vaccine candidates and analyzing vaccine coverage and failure.

Sacchi, Claudio T.; Lemos, Ana P. S.; Brandt, Mary E.; Whitney, Anne M.; Melles, Carmo E. A.; Solari, Claude A.; Frasch, Carl E.; Mayer, Leonard W.

1998-01-01

45

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

46

Gliding motility and Por secretion system genes are widespread among members of the phylum bacteroidetes.  

PubMed

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

McBride, Mark J; Zhu, Yongtao

2012-11-02

47

Identification of a cation transport pathway in Neisseria meningitidis PorB.  

PubMed

Neisseria meningitidis is the main causative agent of bacterial meningitis. In its outer membrane, the trimeric Neisserial porin PorB is responsible for the diffusive transport of essential hydrophilic solutes across the bilayer. Previous molecular dynamics simulations based on the recent crystal structure of PorB have suggested the presence of distinct solute translocation pathways through this channel. Although PorB has been electrophysiologically characterized as anion-selective, cation translocation through nucleotide-bound PorB during pathogenesis is thought to be instrumental for host cell death. As a result, we were particularly interested in further characterizing cation transport through the pore. We combined a structural approach with additional computational analysis. Here, we present two crystal structures of PorB at 2.1 and 2.65 Å resolution. The new structures display additional electron densities around the protruding loop 3 (L3) inside the pore. We show that these electron densities can be identified as monovalent cations, in our case Cs(+), which are tightly bound to the inner channel. Molecular dynamics simulations reveal further ion interactions and the free energy landscape for ions inside PorB. Our results suggest that the crystallographically identified locations of Cs(+) form a cation transport pathway inside the pore. This finding suggests how positively charged ions are translocated through PorB when the channel is inserted into mitochondrial membranes during Neisserial infection, a process which is considered to dissipate the mitochondrial transmembrane potential gradient and thereby induce apoptosis. PMID:23255122

Kattner, Christof; Zaucha, Jan; Jaenecke, Frank; Zachariae, Ulrich; Tanabe, Mikio

2013-02-25

48

Porin variation among clinical isolates of Neisseria gonorrhoeae over a 10-year period, as determined by Por variable region typing.  

PubMed

The Neisseria gonorrhoeae porin protein (Por) is a potential vaccine target and is the antigenic determinant for serovar typing. Two classes of Por, PIA and PIB, and antigenically distinct variants within each class result from sequence variations in the por gene variable regions (VRs) encoding surface-exposed loops. Oligonucleotide probes to 5 VRs of each class were used in checkerboard hybridizations to type 282 clinical gonococcal isolates selected from strains collected over the course of 10 years. PIA strains (n=63) showed limited por diversity, with 90% having 1 of 4 por types. PIB strains (n=219) were more diverse, although several common por types were identified that persisted over time. Variation within individual VRs was found to be limited. The present study provides information about the diversity of Por in strains circulating in a single geographic region over time, illustrates the utility of a novel por typing method, and has implications for vaccine development. PMID:12696000

McKnew, Durrie L; Lynn, Freyja; Zenilman, Jonathan M; Bash, Margaret C

2003-04-02

49

Mutational analysis of the promoter region of the porA gene of Neisseria meningitidis  

Microsoft Academic Search

The porA gene encodes the class 1 outer membrane protein (OMP1) in Neisseria meningitidis and is under transcriptional control. Promoter regions of porA from different clinical isolates were sequenced and were found to differ in the number of guanosine residues in a poly(G) track located upstream of the ?10 region. Isolates that did not express OMP1 had up to nine

R Sawaya; F. F Arhin; F Moreau; J. W Coulton; E. L Mills

1999-01-01

50

A novel porA-based real-time PCR for detection of meningococcal carriage.  

PubMed

Real-time PCR based on the capsule transfer gene (ctrA) is a significant aid in the diagnosis of meningococcal infection but fails to detect a high proportion (60 %) of non-groupable strains associated with nasopharyngeal carriage. This study aimed to design a novel real-time (TaqMan) PCR that would detect more strains of meningococci and be suitable for large-scale carriage studies. Primer and probe sequences were based on the meningococcal porA gene and designed specifically to exclude the highly related porA pseudogene in Neisseria gonorrhoeae. The specificity of the assay was confirmed by testing strains of N. gonorrhoeae known to contain the porA pseudogene together with commensal strains of Neisseria lactamica and Neisseria sicca. None of these was detected in the assay. Neisseria meningitidis strains representing a wide range of serogroups together with non-groupable strains isolated from the nasopharynx were tested by ctrA assay and the novel porA-based TaqMan PCR. All carriage strains were detected by the porA-based assay including four that gave weak or no reaction with the ctrA assay. Comparison of ctrA and porA assays on 71 throat swabs obtained from university students showed that the porA assay detected meningococcal DNA in all samples that were ctrA positive plus three that were ctrA negative but culture positive. This novel porA-based TaqMan assay provides a highly specific method for detecting meningococcal DNA that is more sensitive than the ctrA assay for detecting meningococcal carriage and is particularly suitable for carriage studies where non-groupable strains and other Neisseria are present. PMID:15824424

Jordens, J Zoe; Heckels, John E

2005-05-01

51

POR structural domains important for the enzyme activity in R. capsulatus complementation system  

Microsoft Academic Search

NADPH:protochlorophyllide oxidoreductase (POR) catalyzes hydrogen transfer from NADPH to protochlorophyllide (PChlide) in\\u000a the course of chlorophyll biosynthesis in photosynthetic organisms and is involved in the regulation of the development of\\u000a photosynthetic apparatus in higher plants, algae and cyanobacteria. To approach molecular factors determining the enzyme activity\\u000a in a living cell, several mutants of POR from pea (Pisum sativum) with site-directed

Nikolai Lebedev; Michael P. Timko

2002-01-01

52

Relative Immunogenicity of PorA Subtypes in a Multivalent Neisseria meningitidis Vaccine Is Not Dependent on Presentation Form  

Microsoft Academic Search

The hexavalent meningococcal vaccine HexaMen, containing six PorAs on two vesicles, was tested in clinical studies. Although fourfold increases in serum bactericidal activity (SBA) titers against all of the PorAs were observed, there were significant differences between PorA-specific SBA titers. SBA titers were mainly directed against one PorA from each vesicle, P1.5-2,10 and P1.5-1,2-2, and were lower against the other

Thomas A. Luijkx; Harry van Dijken; Hendrik-Jan Hamstra; Betsy Kuipers; Peter van der Ley; Loek van Alphen; Germie van den Dobbelsteen

2003-01-01

53

An investigation of exploitation versus exploration in GBEA optimization of PORS 15 and 16 Problems  

SciTech Connect

It was hypothesized that the variations in time to solution are driven by the competing mechanisms of exploration and exploitation.This thesis explores this hypothesis by examining two contrasting problems that embody the hypothesized tradeoff between exploration and exploitation. Plus one recall store (PORS) is an optimization problem based on the idea of a simple calculator with four buttons: plus, one, store, and recall. Integer addition and store are classified as operations, and one and memory recall are classified as terminals. The goal is to arrange a fixed number of keystrokes in a way that maximizes the numerical result. PORS 15 (15 keystrokes) represents the subset of difficult PORS problems and PORS 16 (16 keystrokes) represents the subset of PORS problems that are easiest to optimize. The goal of this work is to examine the tradeoff between exploitation and exploration in graph based evolutionary algorithm (GBEA) optimization. To do this, computational experiments are used to examine how solutions evolve in PORS 15 and 16 problems when solved using GBEAs. The experiment is comprised of three components; the graphs and the population, the evolutionary algorithm rule set, and the example problems. The complete, hypercube, and cycle graphs were used for this experiment. A fixed population size was used.

Koch, Kaelynn

2012-05-08

54

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

55

Por Secretion System-Dependent Secretion and Glycosylation of Porphyromonas gingivalis Hemin-Binding Protein 35  

PubMed Central

The anaerobic Gram-negative bacterium Porphyromonas gingivalis is a major pathogen in severe forms of periodontal disease and refractory periapical perodontitis. We have recently found that P. gingivalis has a novel secretion system named the Por secretion system (PorSS), which is responsible for secretion of major extracellular proteinases, Arg-gingipains (Rgps) and Lys-gingipain. These proteinases contain conserved C-terminal domains (CTDs) in their C-termini. Hemin-binding protein 35 (HBP35), which is one of the outer membrane proteins of P. gingivalis and contributes to its haem utilization, also contains a CTD, suggesting that HBP35 is translocated to the cell surface via the PorSS. In this study, immunoblot analysis of P. gingivalis mutants deficient in the PorSS or in the biosynthesis of anionic polysaccharide-lipopolysaccharide (A-LPS) revealed that HBP35 is translocated to the cell surface via the PorSS and is glycosylated with A-LPS. From deletion analysis with a GFP-CTD[HBP35] green fluorescent protein fusion, the C-terminal 22 amino acid residues of CTD[HBP35] were found to be required for cell surface translocation and glycosylation. The GFP-CTD fusion study also revealed that the CTDs of CPG70, peptidylarginine deiminase, P27 and RgpB play roles in PorSS-dependent translocation and glycosylation. However, CTD-region peptides were not found in samples of glycosylated HBP35 protein by peptide map fingerprinting analysis, and antibodies against CTD-regions peptides did not react with glycosylated HBP35 protein. These results suggest both that the CTD region functions as a recognition signal for the PorSS and that glycosylation of CTD proteins occurs after removal of the CTD region. Rabbits were used for making antisera against bacterial proteins in this study.

Shoji, Mikio; Sato, Keiko; Yukitake, Hideharu; Kondo, Yoshio; Narita, Yuka; Kadowaki, Tomoko; Naito, Mariko; Nakayama, Koji

2011-01-01

56

SOLUBILIZAÇÃO DE FOSFATO IN VITRO POR MICRORGANISMOS RIZOSFÉRICOS DE GUANDU IN VITRO PHOSPHATE SOLUBILIZATION BY RHIZOSPHERIC MICROORGANISMS FROM PIGEONPEA  

Microsoft Academic Search

RESUMO: Diversos microrganismos do solo têm a capacidade de solubilizar diferentes formas de fosfatos inorgânicos, podendo contribuir para o aproveitamento de fontes menos solúveis. Seis meios de cultura sólidos foram testados para isolar microrganismos solubilizadores de fosfato (MSF). O isolamento foi feito a partir do rizoplano mais rizosfera de guandu utilizando a metodologia das diluições sucessivas e Número Mais Provável.

Edson Luiz; Antonio Carlos de Souza ABBOUD; Ana Lucy CAPRONI

57

Comparison of PorA VR types and porA promoter sequence from Neisseria meningitidis B isolated from non-immunised children and vaccine failures immunised with a serogroup B outer membrane protein vaccine  

Microsoft Academic Search

PorA protein is an important component of group B meningococcal protein-based vaccines. The goals of this study were: (i) to classify the non-serosubtypable strains recovered from vaccine failures and controls by porA variable region (VR) type; (ii) to investigate if point mutations of VRs of the porA gene are present in P1.19,15 strains recovered from vaccine failures and controls; (iii)

Maria Cec??lia O. Gorla; Ana Paula S. Lemos; Claudio T. Sacchi; José Cássio de Moraes; Lucimar G. Milagres

2003-01-01

58

Trabalho rural e saúde: intoxicações por agrotóxicos no município de Teresópolis - RJ  

Microsoft Academic Search

Resumo: Este estudo procura avaliar as características do trabalho rural no município de Teresópolis, procurando encontrar associações entre variáveis que indicam o uso indevido de agrotóxicos e a intoxicação por esse tipo de produto entre aplicadores de agrotóxicos. Adicionalmente, pretende-se criar subsídios à discussão das práticas de regulação ao uso desses produtos. Os dados foram obtidos de uma pesquisa realizada

Wagner Lopes Soares; Elpídio Antônio Venturine de Freitas; José Aldo Gonçalves Coutinho

2005-01-01

59

Análise de Alergia e Rinite em Escolares por meio da Shell Orion Data Mining Engine  

Microsoft Academic Search

Resumo - A análise de dados, que compreende a busca de conhecimento, pode tornar-se complexa e exaustiva quando é realizada a partir de um enorme volume de dados. Uma maneira eficaz e inteligente de analisar esses dados pode ser realizada por meio do processo de Knowledge Discovery in Databases (KDD), que reúne vários passos e tarefas para a descoberta de

Merisandra Côrtes de Mattos; Diana Colombo Pelegrin; Diego Paz Casagrande

60

RECONOCIMIENTO Y NOMINACI~N DE DIVERSAS EXPRESIONES FACIALES DE EMOCIONES POR JÓVENES Y ADULTOS AUTISTAS  

Microsoft Academic Search

RESUMEN: Este trabajo tiene por objeto presentar el alcance y validez de un proce- dimiento de intervención para reconocer y nominar diversas expresiones faciales de las emociones, fundado en las relaciones de equivalencia de estímulos y destinado a jóvenes y adultos Autistas. La habilidad para reconocer exactamente y responder de forma apropiada a las expre- siones faciales de las emociones

Domingo García; Luis Nieto del Rincón

61

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

62

Kinetic characterisation of the light-driven protochlorophyllide oxidoreductase (POR) from Thermosynechococcus elongatus.  

PubMed

The light-driven enzyme NADPH:protochlorophyllide oxidoreductase (POR) catalyses the reduction of the C17-C18 double bond of protochlorophyllide (Pchlide) to chlorophyllide (Chlide), which is a key regulatory step in the chlorophyll biosynthesis pathway. POR from the thermophilic cyanobacterium Thermosynechococcus elongatus is an attractive system for following the reaction and in the present work we have carried out a detailed steady state kinetic characterisation of this enzyme. The thermophilic POR was shown to have maximal activity at approximately 50 degrees C, which is similar to the growth temperature of the organism. The V(max) was calculated to be 0.53 microM min(-1) and the K(m) values for NADPH and Pchlide were 0.013 microM and 1.8 microM, respectively. The binding properties for both substrates as well as the NADP(+) product have been analysed by using fluorescence emission measurements, which have allowed the dissociation constants for binding to be calculated. These results represent the first steady state kinetic characterisation of a thermophilic version of POR. PMID:16307122

McFarlane, Michael J; Hunter, C Neil; Heyes, Derren J

2005-09-09

63

Immunogenicity of various presentation forms of PorA outer membrane protein of Neisseria meningitidis in mice  

Microsoft Academic Search

In this study we compare different vaccine formulations containing meningococcal PorA outer membrane protein; purified PorA, outer membrane vesicles (OMV) and immune-stimulating complexes (iscom). Bactericidal antibodies could be generated by the OMV and iscom formulation but not with purified PorA using either AlPO4 or Quil-A as adjuvant. OMV and iscom formulations revealed similar immunogenicity when tested in a dose response

Carla C. A. M Peeters; Ivo J. T. M Claassen; Margje Schuller; Gideon F. A Kersten; Eileene M Rouppe van der Voort; Jan T Poolman

1999-01-01

64

La calidad de los ajustes por devengo no afecta al coste de la deuda de las PYMES españolas  

Microsoft Academic Search

Este trabajo examina la relación entre el coste de la deuda y la calidad de los ajustes por devengo en una amplia muestra de empresas españolas mayoritariamente no cotizadas. La relación inversa entre ambas variables obtenida por Francis et al. (2005) en un contexto de grandes compañías cotizadas no se aprecia al restringir la muestra a pequeñas y medianas empresas.

Belén Gill de Albornoz Noguer; Manuel Illueca Muñoz

2007-01-01

65

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

66

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.

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

2011-01-01

67

Por La Vida model intervention enhances use of cancer screening tests among Latinas  

Microsoft Academic Search

Objectives: To describe the short-term impact of the intervention known as Por La Vida (PLV) on cancer screening for Latinas in San Diego, California.Methods: Thirty-six lay community workers (consejeras) were recruited and trained to conduct educational group sessions. Each consejera recruited approximately 14 peers from the community to participate in the program. The consejeras were randomly assigned to either a

Ana M Navarro; Karen L Senn; Lori J McNicholas; Robert M Kaplan; Beatriz Roppé; Mary C Campo

1998-01-01

68

Intermitência alfvênica gerada por caos na atmosfera solar e no vento solar  

NASA Astrophysics Data System (ADS)

Dados medidos no vento solar rápido proveniente dos buracos coronais revelam que os plasmas no meio interplanetário são dominados por flutuações Alfvênicas, caracterizadas por uma alta correlação entre as variações do campo magnético e da velocidade do plasma. As flutuações exibem muitas características esperadas em turbulência magneto-hidrodinâmica totalmente desenvolvida, tais como intermitência e espectros contínuos. Contudo, os mecanismos responsáveis pela evolução de turbulência Alfvênica intermitente não são completamente compreendidos. Neste trabalho a teoria de caos é usada para explicar como sistemas Alfvênicos, modelados pela equação Schrödinger não-linear derivativa e pela equação Kuramoto-Sivashinsky, podem se tornar fortemente caóticos à medida em que parâmetros do plasma são variados. Pequenas perturbações no parâmetro de dissipação podem fazer com que o sistema mude bruscamente de um regime periódico, ou fracamente caótico, para um regime fortemente caótico. As séries temporais das flutuações do campo magnético nos regimes fortemente caóticos exibem comportamento intermitente, em que fases laminares ou fracamente caóticas são interrompidas por fortes estouros caóticos. É mostrado que o regime fortemente caótico é atingido quando as soluções periódicas ou fracamente caóticas globalmente estáveis interagem com soluções do sistema que são fortemente caóticas, mas globalmente instáveis. Estas soluções globalmente instáveis são conjuntos caóticos não-atrativos conhecidos como selas caóticas, e são responsáveis pelos fortes estouros nos regimes intermitentes. Selas caóticas têm sido detectadas experimentalmente em uma grande variedade de sistemas, sendo provável que elas desempenhem um papel importante na turbulência intermitente observada em plasmas espaciais.

Rempel, E. L.; Chian, A. C.-L.; Macau, E. E. N.; Rosa, R. R.

2003-08-01

69

Elimination of POR expression correlates with red leaf formation in Amaranthus tricolor.  

PubMed

Amaranthus tricolor L. tricolor cv. Earlysplendor, an ornamental amaranth, generates red leaves instead of green leaves in late summer to early autumn. Red leaf formation was promoted under short-day conditions and delayed by night-break treatments. Red leaves were characterized by lower levels of chlorophyll accumulation rather than higher levels of red pigment (betacyanin) accumulation. However, the metabolic activity toward the production of Mg-protoporphyrin, an intermediate in the biosynthesis pathway for chlorophyll, was detected in red leaves as well as in green leaves. RNA gel blot analysis was performed to assess the expression of nine genes encoding eight enzymes involved in chlorophyll biosynthesis. Among these enzymes, red-leaf-specific reduction of gene expression was observed only for NADPH-protochlorophyllide oxidoreductase (POR), a key enzyme catalyzing a later step of chlorophyll biosynthesis. In addition, immunoblot analysis showed no accumulation of POR protein(s) in red leaves. These data indicate that the repression of POR gene expression and resultant loss of chlorophyll synthesis activity plays a role in red leaf formation of A. tricolor. PMID:11532173

Iwamoto, K; Fukuda, H; Sugiyama, M

2001-08-01

70

Respostas de Freqüência Cardíaca, Consumo de Oxigênio e Sensação Subjetiva ao Esforço em um Exercício de Hidroginástica Executado por Mulheres em Diferentes Situações Com e Sem o Equipamento Aquafins ? Heart Rate, Oxygen Consumption and Rating of Perceived Exertion Responses in a Water Aerobic Exercise Performed by Women at Different Situations with and without the Aquafins Apparatus  

Microsoft Academic Search

Aquatic exercise sessions are becoming increasingly diversified due to the use of apparatus appropriate to aquatic environment. However, few studies analyzed the influence of the use of such apparatus in the car- diorespiratory responses. The purpose was to analyze the heart rate, oxygen consumption and the rating of perceived exertion of effort in women during an aquatic exercise performed in

Stephanie Santana Pinto; Cristine Lima Alberton; Paulo André; Luiz Fernando Martins Kruel; Porto Alegre

71

Artigo Original Simpatectomia torácica por videotoracoscopia para tratamento da hiperidrose primária: estudo retrospectivo de 521 casos comparando diferentes níveis de ablação* Video-assisted thoracic sympathectomy in the treatment of primary hyperhidrosis: a retrospective study of 521 cases comparing different levels of ablation  

Microsoft Academic Search

Objective: To compare different levels of ablation in terms of the degree of patient satisfaction and extent of postoperative reflex sweating in sympathectomized patients. Methods: A retrospective study involving 521 patients with primary hyperhidrosis, submitted to thoracic sympathectomy at the Monte Sinai Hospital and University Hospital of the Federal University of Juiz de Fora, from January of 2001 to December

Jorge Montessi; Edmílton Pereira de Almeida; João Paulo Vieira; Marcus da Matta Abreu

2007-01-01

72

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

73

Expression, purification and preliminary X-ray analysis of the Neisseria meningitidis outer membrane protein PorB  

SciTech Connect

The Neisseria meningitidis outer membrane protein PorB was expressed in Escherichia coli and purified from inclusion bodies by denaturation in urea followed by refolding in buffered LDAO on a size-exclusion column. PorB has been crystallized in three different crystal forms: C222, R32 and P6{sub 3}. The C222 crystal form may contain either one or two PorB monomers in the asymmetric unit, while both the R32 and P6{sub 3} crystal forms contained one PorB monomer in the asymmetric unit. Of the three, the P6{sub 3} crystal form had the best diffraction quality, yielding data extending to 2.3 {angstrom} resolution.

Tanabe, Mikio; Iverson, Tina M.; (Vanderbilt)

2010-01-28

74

Cross-reactivity of antibodies against PorA after vaccination with a meningococcal B outer membrane vesicle vaccine  

Microsoft Academic Search

The cross-reactivity of PorA-specific antibodies induced by a monovalent P1.7-2,4 (MonoMen) and\\/or a hexavalent (HexaMen) meningococcal B outer membrane vesicle vaccine (OMV) in toddlers and school children was studied by serum bactericidal assays (SBA). First, isogenic vaccine strains and PorA-identical patient isolates were compared as a target in SBA, to ensure that the vaccine strains are representative for patient isolates.

C. L. Vermont; H. H. van Dijken; A. J. Kuipers; Limpt van C. J. P; W. C. M. Keijzers; A. van der Ende; R. de Groot; L. van Alphen; Dobbelsteen van den G. P. J. M

2003-01-01

75

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.

2011-10-01

76

Immunogenicity of a combination vaccine containing pneumococcal conjugates and meningococcal PorA OMVs  

Microsoft Academic Search

The pre-clinical immunogenicity of a combination vaccine containing 13-valent pneumococcal conjugate (13vPnC) vaccine (serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F conjugated to CRM197) and nine-valent meningococcal B PorA vaccine (NonaMen; serosubtypes P1.7,16; P1.5-1,2-2; P1.19,15-1; P1.5-2,10; P1.12-1,13; P1.7-2,4; P1.22,14; P1.7-1,1 and P1.18-1,3,6), and any potential immunological interference between pneumococcal and MenB components of

Germie P. J. M. van den Dobbelsteen; Harry H. van Dijken; Subramonia Pillai; Loek van Alphen

2007-01-01

77

Bifurcación de las soluciones de vientos impulsados por radiación en estrellas Be: formación de líneas  

NASA Astrophysics Data System (ADS)

Se ha estudiado la topología de la ecuación hidrodinámica no-lineal que describe el perfil de velocidades de vientos impulsados por radiación en estrellas tempranas. Al aplicar este modelo a estrellas Be se encuentra que existen dos tipos De soluciones: la estándar, que describe el viento polar, y una nueva, que describe un viento más denso y lento y que explicaría el disco que se encuentra alrededor de estos objetos. Existe una región de transición en donde ambas soluciones coexisten (bifurcación}). Ambas soluciones satisfacen en esta región las mismas condiciones de borde. Para estas dos soluciones se han obtenido los perfiles de líneas de hidrógeno del visible y del IR, resolviendo el transporte de radiación en el ``comoving frame". Para la solución estándar, se obtienen perfiles con componentes en emisión, mientras que para la nueva solución se obtienen perfiles en absorción. Se comparan cualitativamente los resultados con las observaciones.

Curé, M.; Rial, D.; Cidale, L.; Venero, R.

78

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.

79

Nation, empire and local community in Lope de Vega's Peasant Drama and El Nuevo Mundo descubierto por Cristóbal Colón  

Microsoft Academic Search

In the drama of early modern Spain the colonisation of America wasassociated with criticism of the corruption of the religious and chivalricideals of the reconquest of Muslim Spain. In Lope de Vega's early play, El Nuevo Mundo descubierto por Cristóbal Colón (c.1598–1603), the greed andlust of Columbus's companions make them prototypes of the tyrannicalnoblemen of Lope's peasant honour plays, which

Ivan Cañadas

2002-01-01

80

Molecular Epidemiology of Neisseria gonorrhoeae: Sequence Analysis of the porB Gene Confirms Presence of Two Circulating Strains  

Microsoft Academic Search

The phenotypic and genotypic characteristics of Neisseria gonorrhoeae strains fluctuate over time both locally and globally, and highly discriminative and precise characterization of the strains is essential. Conventional characterization of N. gonorrhoeae strains for epidemiological purposes is mostly based on phenotypic methods, which have some inherent limitations. In the present study sequence analysis of porB1b gene sequences was used for

Magnus Unemo; Per Olcen; Torsten Berglund; Jan Albert; Hans Fredlund

2002-01-01

81

Competencia por Comparación en el Sector de Distribución Eléctrica: El Papel de la Política de Defensa de la Competencia  

Microsoft Academic Search

En este trabajo, abordamos en primer lugar el problema de la interacción entre las políticas regulatorias y de defensa de la competencia en relación a la potencial implementación del mecanismo regulatorio de competencia por comparación en el sector de distribución eléctrica en Argentina. En segunda instancia, se estudia la concentración accionaria en distribución eléctrica, y los riesgos de tal proceso

Diego Bondorevsky; Diego Petrecolla; Carlos A. Romero; Christian A. Ruzzier

2002-01-01

82

Comparison of immune responses to gonococcal PorB delivered as outer membrane vesicles, recombinant protein, or Venezuelan equine encephalitis virus replicon particles.  

PubMed

Porin (PorB) is a major outer membrane protein produced by all Neisseria gonorrhoeae strains and has been a focus of intense interest as a vaccine candidate. In this study, the immunogenicity of PorB in mice was investigated after several immunization regimens. Outer membrane vesicles (OMV), recombinant renatured PorB (rrPorB), and PorB-expressing Venezuelan equine encephalitis (VEE) virus replicon particles (PorB VRP) were delivered intranasally (i.n.) or subcutaneously (s.c.) into the dorsal area or the hind footpad in three-dose schedules; the PorB VRP-immunized mice were given a single additional booster dose of rrPorB in Ribi adjuvant. Different delivery systems and administration routes induced different immune responses. Mice immunized s.c. with rrPorB in Ribi had the highest levels of PorB-specific serum immunoglobulin G (IgG) by enzyme-linked immunosorbent assay. Surprisingly, there was an apparent Th1 bias, based on IgG1/IgG2a ratios, after immunization with rrPorB in Ribi in the footpad while the same vaccine given in the dorsal area gave a strongly Th2-biased response. PorB VRP-immunized mice produced a consistent Th1 response with a high gamma interferon response in stimulated splenic lymphocytes and very low IgG1/IgG2a ratios. Immunization by OMV delivered i.n. was the only regimen that resulted in a serum bactericidal response, and it generated an excellent mucosal IgA response. Serum from mice immunized with rrPorB preferentially recognized the surface of whole gonococci expressing a homologous PorB, whereas serum from PorB VRP-immunized mice had relatively low whole-cell binding activity but recognized both heterologous and homologous PorB equally. The data resulting from this direct comparison suggested that important aspects of the immune response can be manipulated by altering the form of the antigen and its delivery. This information coupled with an understanding of protective antigonococcal immune responses will enable the design of the optimal vaccine for N. gonorrhoeae. PMID:16239559

Zhu, Weiyan; Thomas, Christopher E; Chen, Ching-Ju; Van Dam, Cornelius N; Johnston, Robert E; Davis, Nancy L; Sparling, P Frederick

2005-11-01

83

The Amino Acid Sequence of Neisseria lactamica PorB Surface-Exposed Loops Influences Toll-Like Receptor 2-Dependent Cell Activation  

PubMed Central

Toll-like receptors (TLRs) play a major role in host mucosal and systemic defense mechanisms by recognizing a diverse array of conserved pathogen-associated molecular patterns (PAMPs). TLR2, with TLR1 and TLR6, recognizes structurally diverse bacterial products such as lipidated factors (lipoproteins and peptidoglycans) and nonlipidated proteins, i.e., bacterial porins. PorB is a pan-neisserial porin expressed regardless of organisms' pathogenicity. However, commensal Neisseria lactamica organisms and purified N. lactamica PorB (published elsewhere as Nlac PorB) induce TLR2-dependent proinflammatory responses of lower magnitude than N. meningitidis organisms and N. meningitidis PorB (published elsewhere as Nme PorB). Both PorB types bind to TLR2 in vitro but with different apparent specificities. The structural and molecular details of PorB-TLR2 interaction are only beginning to be unraveled and may be due to electrostatic attraction. PorB molecules have significant strain-specific sequence variability within surface-exposed regions (loops) putatively involved in TLR2 interaction. By constructing chimeric recombinant PorB loop mutants in which surface-exposed loop residues have been switched between N. lactamica PorB and N. meningitidis PorB, we identified residues in loop 5 and loop 7 that influence TLR2-dependent cell activation using HEK cells and BEAS-2B cells. These loops are not uniquely responsible for PorB interaction with TLR2, but NF-?B and MAP kinases signaling downstream of TLR2 recognition are likely influenced by a hypothetical “TLR2-binding signature” within the sequence of PorB surface-exposed loops. Consistent with the effect of purified PorB in vitro, a chimeric N. meningitidis strain expressing N. lactamica PorB induces lower levels of interleukin 8 (IL-8) secretion than wild-type N. meningitidis, suggesting a role for PorB in induction of host cell activation by whole bacteria.

Toussi, Deana N.; Carraway, Margaretha; Wetzler, Lee M.; Lewis, Lisa A.; Liu, Xiuping

2012-01-01

84

Adequação do consumo de ferro por gestantes e mulheres em idade fértil atendidas em um serviço de pré-natal Adequacy of iron consumption in pregnant and fertile women assisted by a prenatal service Adecuación del consumo de hierro por mujeres embarazadas y fértiles asistidas por un servicio prenatal  

Microsoft Academic Search

ReSumo: Anemia por carência alimentar de ferro é o problema nutricional mais prevalente em nível de saúde coletiva e afeta crianças e mulheres em idade reprodutiva, em especial as gestantes. Este estudo avaliou o consumo de alimentos fontes de ferro, naturais e fortificados, e a adequação de energia e nutrientes de mulheres em idade reprodutiva, gestantes ou não. Desenvolveu-se um

Juliana Moreira Lino Viana; Adriana Uehara Santos; Maria Alice Tsunechiro; Ana Paula; Sayuri Sato; Isabel Bonadio; Sophia Cornbluth Szarfarc; Elizabeth Fujimori

85

The effect of essential oil on heart rate and blood pressure among solus por aqua workers.  

PubMed

Background: Aromatherapy is widely used around the world for stress relief. Whether exposure to essential oil increases the risk of cardiovascular events is still unknown. The purpose of this study was to investigate the effect of essential oil on heart rate and blood pressure among solus por aqua (spa) workers.Methods: We recruited 100 healthy workers from various spa centres in Taipei, Taiwan. Between July and August of 2010, three repeated measurements - resting heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) - were taken of each spa worker in our study room. Participants were exposed to essential oil vapour generated from an ultrasonic atomizer in the study room for two consecutive hours. The total volatile organic compound (VOC) level in the study room was measured during the study period. We used a linear mixed-effect model to determine the association between the total VOC level and the participants' HR, SBP, and DBP.Results: For the times from 15 to 60 min after start of exposure, we found that the VOC level was significantly associated with reduced 15-min mean BP and HR. After exposure for more than 1 hour, from 75 to 120 min after start of exposure, we found that the VOC levels were associated with increased 15-min mean BP and HR.Conclusions: Exposure to essential oil for 1 hour was found to be an effective method of relaxation, as indicated by decreases in the HR and BP. Prolonged exposure for longer than 1 hour to essential oils may be harmful to cardiovascular health among spa workers. PMID:23197402

Chuang, Kai-Jen; Chen, Hua-Wei; Liu, I-Jung; Chuang, Hsiao-Chi; Lin, Lian-Yu

2012-11-29

86

IgG antibody subclass responses determined by immunoblot in infants’ sera following vaccination with a meningococcal recombinant hexavalent PorA OMV vaccine  

Microsoft Academic Search

The introduction of meningococcal serogroup C conjugate vaccines into the UK immunisation schedule has led to the decline of serogroup C disease in those vaccinated but there is no imminent vaccine solution for serogroup B disease. The PorA outer membrane protein (OMP) is a potential serogroup B vaccine candidate and an outer membrane vesicle (OMV) vaccine containing six different PorA

Sarah Martin; Francesca Sadler; Ray Borrow; Maureen Dawson; Andrew Fox; Keith Cartwright

2001-01-01

87

Avidity maturation following vaccination with a meningococcal recombinant hexavalent PorA OMV vaccine in UK infants  

Microsoft Academic Search

To date, there are no data assessing the utility of avidity indices as a surrogate marker for the induction of immunological memory following meningococcal serogroup B outer membrane vesicle (OMV) vaccination. We studied infants who had been immunized with three doses of a recombinant hexavalent PorA OMV vaccine at ages 2–4 months, together with a fourth dose at age 12–18

Emma Longworth; Ray Borrow; David Goldblatt; Paul Balmer; Maureen Dawson; Nick Andrews; Elizabeth Miller; Keith Cartwright

2002-01-01

88

Chlorophyll Synthesis in a Deetiolated (det340) Mutant of Arabidopsis without NADPH-Protochlorophyllide (PChlide) Oxidoreductase (POR) A and Photoactive PChlide-F655.  

PubMed Central

Chlorophyll (Chl) synthesis in Arabidopsis is controlled by two light-dependent NADPH-protochlorophyllide (PChlide) oxidoreductases (PORs), one (POR A) that is active transiently in etiolated seedlings at the beginning of illumination and another (POR B) that also operates in green plants. The function of these two enzymes during the light-induced greening of dark-grown seedlings has been studied in the wild type and a deetiolated (det340) mutant of Arabidopsis. One of the consequences of the det mutation is that POR A is constitutively down-regulated, and therefore, synthesis of the POR A enzyme is shut off. When grown in the dark, the det340 mutant lacks POR A and the photoactive PChlide-F655 species but maintains the second PChlide reductase, POR B. Previously, photoactive PChlide-F655 has often been considered to be the only PChlide form that leads to Chl formation. Despite its deficiency in POR A and photoactive PChlide-F655, the det340 mutant is able to green when placed in the light. Chl accumulation, however, proceeds abnormally. At the beginning of illumination, seedlings of det340 mutants are extremely susceptible to photooxidative damage and accumulate Chl only at extremely low light intensities. They form core complexes of photosystems I and II but are almost completely devoid of light-harvesting structures. The results of this study demonstrate that in addition to the route of Chl synthesis that has been studied extensively in illuminated dark-grown wild-type plants, a second branch of Chl synthesis exists that is driven by POR B and does not require POR A.

Lebedev, N; Van Cleve, B; Armstrong, G; Apel, K

1995-01-01

89

DNA immunization of mice with a plasmid encoding Neisseria gonorrhea PorB protein by intramuscular injection and epidermal particle bombardment.  

PubMed

Immunogenicity of a DNA vaccine encoding PorB from Neisseria gonorrhoeae strain FA1090 was analyzed in BALB/C mice immunized by intramuscular needle injection or epidermal gene gun bombardment. Both delivery routes generated measurable specific antibodies although the gene gun response was slower. Antibody isotypes were indicative of Th2 activation following gene gun immunization and of Th1 activation following intramuscular injection. In both immunization protocols, boosting with either renatured recombinant (rr) PorB protein or PorB expressed from Venezuelan equine encephalitis virus replicon particles (VRPs) significantly increased anti-PorB antibody levels. Boosting with rrPorB protein had little effect on antibody isotypes, while boosting with VRPs expressing PorB-enhanced a Th1 type response. Whole cell binding experiments showed that a portion of the antibodies recognized the surface of the homologous N. gonorrhoeae strain. Serum from groups with high antibody levels showed some opsonization of the homologous strain using human neutrophils. These results showed the potential of DNA vaccination for the purpose of priming an antibody response against PorB of N. gonorrhoeae. When combined with a protein or VRP boost, DNA priming resulted in high-titer and long-lasting responses. Based on different prime-boost protocols, we could polarize immune responses to predominantly Th1 or Th2, which should enable future studies of the types of immune responses that are protective in mouse models of gonorrhea. PMID:14741158

Zhu, W; Thomas, C E; Sparling, P F

2004-01-26

90

Nuevo estudio relaciona a los índices de utilización de servicios de atención médica más que a la biología con las desigualdades en salud por cáncer colorrectal  

Cancer.gov

Los índices más altos de incidencia y mortalidad por cáncer colorrectal que experimentan los afroamericanos pueden deberse principalmente a las diferencias en la utilización de servicios médicos y en menor proporción a la biología, según un nuevo estudio dirigido por investigadores del NCI. Índices más bajos de seguimiento podrían resultar en un retraso del diagnóstico y de tratamiento y en un aumento de la mortalidad.

91

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.

Wadsater, Maria; Laursen, Tomas; Singha, Aparajita; Hatzakis, Nikos S.; Stamou, Dimitrios; Barker, Robert; Mortensen, Kell; Feidenhans'l, Robert; M?ller, Birger Lindberg; Cardenas, Marite

2012-01-01

92

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.

93

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.

94

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

PubMed Central

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.

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

2005-01-01

95

CYP1A and POR gene mediated mitochondrial membrane damage induced by carbon nanoparticle in human mesenchymal stem cells.  

PubMed

Nanoparticles (NPs) can cause respiratory and cardiovascular problems, furthermore small carboxyl polystyrene NPs induce hemolysis, activate platelets and induce inflammation in human blood. Carbon nanoparticles (CNPs) are known to interfere with cellular metabolism, specific cellular functions and moreover may cause cellular toxicity. We aimed to study the influence of CNPs on oxidative stress, mitochondrial membrane damage and intracellular gene expression in human mesenchymal stem cells (hMSCs). CNPs cause a dose and time dependent growth inhibition in hMSCs at a dose range from 50 to 400?g/mL. Exposure of CNPs toxic doses viz., 50?g/mL (D1) and 100?g/mL (D2) decreased intracellular mitochondrial membrane potential compared to control. CNPs treated cells were found to lose their morphology due to cell membrane damage have been confirmed by propidium iodide staining and fluorescence microscopic analysis. Oxidative stress responsive genes like GSTM3 and GSR1 expression have increased a fold when compared to control, interim there is no change were observed in SOD and GPx. We found an increased expression of CYP1A and POR genes by at least 2- fold, which is involved in mitochondrial trans-membrane potential. In conclusion, routine and high exposure of CNPs to hMSCs increased oxidative stress and mitochondrial membrane damage. PMID:23624273

Alshatwi, Ali A; Periasamy, Vaiyapuri Subbarayan; Subash-Babu, Pandurangan; Alsaif, Mohammed A; Alwarthan, Abdulrahman A; Lei, K A

2013-04-03

96

La demanda por combustible y el impacto de la contaminación al interior de los hogares sobre la salud: el caso de Guatemala  

Microsoft Academic Search

El consumo de leña para la preparación de alimentos es aún común en algunos países en desarrollo. La exposición a la contaminación dentro de los hogares, causada por la quema de este combustible en estufas sin sistemas de ventilación adecuados, aumenta la probabilidad de adquirir enfermedades respiratorias agudas. En este trabajo, se construye un modelo de decisión de hogares que

Martínez Mariana

2003-01-01

97

LA DEMANDA POR COMBUSTIBLE Y EL IMPACTO DE LA CONTAMINACIÓN AL INTERIOR DE LOS HOGARES SOBRE LA SALUD: EL CASO DE GUATEMALA  

Microsoft Academic Search

El consumo de leña para la preparación de alimentos es aún común en algunos países en desarrollo. La exposición a la contaminación dentro de los hogares, causada por la quema de este combustible en estufas sin sistemas de ventilación adecuados, aumenta la probabilidad de adquirir enfermedades respiratorias agudas. En este trabajo, se construye un modelo de decisión de hogares que

MARIANA MARTÍNEZ CUÉLLAR

2003-01-01

98

Angioembolización selectiva: un valioso adyuvante en la estrategia de control de daños en heridas faciales por proyectil de arma de fuego. Informe de un caso  

Microsoft Academic Search

Resumen Introducción: La angioembolización selectiva es una alterna- tiva no quirúrgica para controlar el sangrado facial traumático. Caso clínico: Informamos el caso de un paciente con herida facial por proyectil de arma de fuego tratado con angioemboli- zación selectiva como adyuvante al control de daños, con lo que se logró detener la hemorragia. Conclusiones: La angioembolización selectiva es un valioso

Luis Manuel García-Núñez; Gustavo Enrique Sánchez-Villanueva; Ruy Cabello-Pasini; Luis Enrique Soto-Ortega; José María Rivera-Cruz; Olliver Núñez-Cantú

2009-01-01

99

DISCUSSÃO SOBRE INTOXICAÇÕES POR MEDICAMENTOS E AGROTÓXICOS NO BRASIL DE 1999 A 2002 Discussion about Medication and Pesticide Poisonings in Brazil from 1999 to 2002  

Microsoft Academic Search

RESUMO: Medicamentos e agrotóxicos são intensamente consumidos e os contextos produtivos e mercadológico nos quais estes estão inseridos aproximam os riscos à saúde e ao meio ambiente relacionados à sua utilização, dentre os quais estão as intoxicações, cujos principais agentes são os medicamentos e agrotóxicos. Objetivos. Discutir o padrão de intoxicações por medicamentos e agrotóxicos no Brasil, mostrando a aproximação

Reginaldo T. Mendonça; Jaqueline L. Marinho

100

Síndrome pulmonar e cardiovascular por Hantavirus: aspectos epidemiológicos, clínicos, do diagnóstico laboratorial e do tratamento Hantavirus pulmonary and cardiovascular syndrome: epidemiology, clinical presentation, laboratory diagnosis and management aspects  

Microsoft Academic Search

Resumo A síndrome pulmonar e cardiovascular por Hantavirus (SPCVH), é doença emergente com descrição crescente de casos no Brasil. Neste trabalho, estudou-se 8 casos confirmados da doença. Todos apresentaram febre e dispnéia. Taquicardia, astenia, hipotensão e estertoração pulmonar ocorreram em 75 a 87,5% dos casos. Plaquetopenia e hipoxemia ocorreram em 100% dos casos, hemoconcentração, leucocitose com desvio à esquerda e

Luiz Tadeu; M. Figueiredo; Gelse Mazzoni Campos; Fernando Bellissimo Rodrigues

101

Associação entre trauma por perda na infância e depressão na vida adulta Association between childhood loss trauma and depression in adulthood  

Microsoft Academic Search

Observações clínicas efetuadas por psicanalistas sugerem que psicopatologias da idade adulta podem ter sido originadas na infância. Estudos publicados na última década identificaram associação entre trauma na infância e depressão na vida adulta. Vivências traumáticas na infância, como a perda de vínculos afetivos devido à morte de pais ou de irmãos ou, ainda, a privação de um ou de ambos

Maria Lucrécia; Scherer Zavaschia; Fabíola Satlerb; Daniela Poesterc; Cláudia Ferrão; Rafael Piazenskib Vargasd; Luís Augusto Paim Rohdee; Cláudio Laks Eizirikf

102

Timectomia estendida por cirurgia torácica videoassistida e cervicotomia no tratamento da miastenia * Extended thymectomy through video assisted thoracic surgery and cervicotomy in the treatment of myasthenia  

Microsoft Academic Search

Introdução: A relação entre a miastenia e o timo é evidente e o tratamento atual desta condição inclui a timectomia. No entanto, uma revisão de nossa experiência com a timectomia revelou a necessidade do uso de uma técnica mais radical. Objetivo: Analisar retrospectivamente pacientes portado- res de miastenia gravis que foram submetidos a timectomia radical por videotoracoscopia, ressaltando vantagens do

EDUARDO HARUO SAITO; GÉRSON C. MAGALHÃES; LUIZ CARLOS; AGUIAR VAZ; VICENTE FARIA CERVANTE

2003-01-01

103

Adult Student Retention and Achievement with Language-Based Modular Materials. POR FIN: Program Organizing Related Family Instruction in the Neighborhood.  

ERIC Educational Resources Information Center

The goal of the POR FIN research design was to develop a language-based curriculum emphasizing the audiolingual approach and integrating academic and social-functioning subject matter. The modular curriculum is designed so that each lesson is independent and complete in itself, and provides a high degree of motivation, retention, and achievement…

Bexar County School Board, San Antonio, TX.

104

Desenvolvimento e aplicação de metodologia por cromatografia em camada delgada para determinação do perfil de alcalóides oxindólicos pentacíclicos nas espécies sul-americanas do gênero Uncaria  

Microsoft Academic Search

RESUMO: O gênero Uncaria (Rubiaceae) é representado na América do Sul e Central por duas espécies: U. tomentosa (Willd.) DC. e U. guianensis (Aubl.) Gmel., conhecidas popularmente como unha-de-gato. Ambas são trepadeiras perenes, sendo empregadas na prevenção e cura de várias doenças. Nessas plantas são encontrados alcalóides oxindólicos e indólicos, triterpenos glicosilados, taninos e fl avonóides. Seis alcalóides oxindólicos pentacíclicos,

Ligia M. M. Valente; Flaviane F. Alves; Giselle M. Bezerra; Maria Beatriz S. Almeida; Sandra L. Rosario; José L. Mazzei; Luiz A. d'Avila; Antonio C. Siani

2006-01-01

105

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.

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

2013-01-01

106

Baja Incidencia de Taquicardia Auricular por Macro-Reentrada luego de la Ablación de Fibrilación Auricular Usando como Guía Potenciales Auriculares Fraccionados en Ritmo Sinusal  

Microsoft Academic Search

Resumen La ablación de fibrilación auricular puede resultar pro-arrítmica. Las taquicardias auriculares por macro-reentrada han sido reportadas hasta en 1\\/3 de los pacientes que son sometidos a ablación de fibrilación auricular. Métodos y Resultados: En el presente trabajo se utilizo un abordaje electrofisiológico para eliminar potenciales auriculares izquierdos fraccionados durante ritmo sinusal, sin la intención de crear líneas de bloqueo.

Javier E. Banchs; Erica Penny-Peterson; Soraya Samii; Deborah L. Wolbrette; Gerald V. Naccarelli; Mario D. Gonzalez

2009-01-01

107

DNA Immunization of mice with a plasmid encoding Neisseria gonorrhea PorB protein by intramuscular injection and epidermal particle bombardment  

Microsoft Academic Search

Immunogenicity of a DNA vaccine encoding PorB from Neisseria gonorrhoeae strain FA1090 was analyzed in BALB\\/C mice immunized by intramuscular needle injection or epidermal gene gun bombardment. Both delivery routes generated measurable specific antibodies although the gene gun response was slower. Antibody isotypes were indicative of Th2 activation following gene gun immunization and of Th1 activation following intramuscular injection. In

W. Zhu; C. E. Thomas; P. F. Sparling

2004-01-01

108

Neisseria meningitidis PorB, a Toll-Like Receptor 2 Ligand, Improves the Capacity of Francisella tularensis Lipopolysaccharide To Protect Mice against Experimental Tularemia  

Microsoft Academic Search

Francisella tularensis causes severe pneumonia that can be fatal if it is left untreated. Due to its potential use as a biological weapon, research is being conducted to develop an effective vaccine and to select and study adjuvant molecules able to generate a better and long-lasting protective effect. PorB, a porin from Neisseria meningitidis, is a well-established Toll-like receptor 2

Damiana Chiavolini; Susan Weir; John R. Murphy; Lee M. Wetzler

2008-01-01

109

Serum bactericidal activity and isotype distribution of antibodies in toddlers and schoolchildren after vaccination with RIVM hexavalent PorA vesicle vaccine  

Microsoft Academic Search

A clinical phase II trial with the RIVM hexavalent OMV vaccine containing six different PorAs was carried out in toddlers (2–3 years) and schoolchildren (7–8 years) in The Netherlands. Children were vaccinated three times (0, 2, 8 months). Sera after two and three vaccinations were analysed for serum bactericidal activity (SBA) and isotype distribution in whole cell enzyme linked immunosorbent

Ester de Kleijn; Lilian van Eijndhoven; Clementien Vermont; Betsy Kuipers; Harry van Dijken; Hans Rümke; Ronald de Groot; Loek van Alphen; Germie van den Dobbelsteen

2001-01-01

110

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

PubMed

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

Abdali, Narges; Barth, Enrico; Norouzy, Amir; Schulz, Robert; Nau, Werner M; Kleinekathöfer, Ulrich; Tauch, Andreas; Benz, Roland

2013-10-08

111

Neisserial PorB is translocated to the mitochondria of HeLa cells infected with Neisseria meningitidis and protects cells from apoptosis  

Microsoft Academic Search

Summary We have previously shown that purified meningococ- cal porin PorB associates with mitochondria and pre- vents apoptosis of B cells, Jurkat cells and HeLa cells (Massari et al ., 2000, Proc Natl Acad Sci USA 97: 9070-9075). This work examines if intact meningo- cocci have a similar effect as purified porins. It was first determined that intact live meningococci

Paola Massari; Carol A. King; Alan Yu Ho; Lee M. Wetzler

2003-01-01

112

ANÁLISE DO VIGOR E DA ATIVIDADE DA a-AMILASE EM SEMENTES DE CULTIVARES DE ARROZ SUBMETIDAS A DIFERENTES TRATAMENTOS COM ÁCIDO ACÉTICO VIGOUR AND a-AMYLASE ANALISIS IN SEEDS OF RICE CULTIVARS SUBMITTED TO SEVERAL TREATMENTS WITH ACETIC ACID  

Microsoft Academic Search

RESUMO Os ácidos orgânicos acumulados, devido a decomposição da matéria orgânica no solo sob irrigação, afetam o desenvolvimento de plântulas em lavouras de arroz. Por isso, a qualidade fisiológica das sementes de arroz, submetidas à ação de ácidos orgânicos, deve ser estudada. Sementes de arroz das cultivares BR IRGA-410 e Epagri 111 foram submetidas a tratamentos com ácido acético nas

Luiz Augusto; Dario Munt de Moraes

113

Analysis of Pathogen-Host Cell Interactions in Purpura Fulminans: Expression of Capsule, Type IV Pili, and PorA by Neisseria meningitidis In Vivo  

PubMed Central

The pattern of meningococcal surface structure expression in different microenvironments following bloodstream invasion in vivo is not known. We used immunohistochemistry to determine the expression of capsule, type IV pili, and PorA by meningococci residing in the skin lesions of children with purpura fulminans. All the skin biopsy samples showed evidence of thrombosis and, frequently, a perivascular inflammatory cell infiltrate consisting of neutrophils (elastase positive) and monocytes/macrophages (CD68 positive). Modified Gram staining revealed 20 to over 100 gram-negative diplococci in each 4-?m-thick section, usually grouped into microcolonies. Immunoperoxidase staining demonstrated that the invading meningococci expressed PorA, capsule, and type IV pilin. Expression of these antigens was not restricted to any particular environment and was found in association with meningococci located in leukocytes, small blood vessels, and the dermal interstitium. Confocal laser scanning microscopy demonstrated coexpression of pilin and capsule by numerous microcolonies. However, there was some discordance in capsule and pilin expression within the microcolonies, suggesting phase variation. The strategy employed in this study will be helpful in investigating invasive bacterial diseases where antigenic and phase variation has a significant impact on virulence and on vaccine design.

Harrison, O. B.; Robertson, B. D.; Faust, S. N.; Jepson, M. A.; Goldin, R. D.; Levin, M.; Heyderman, R. S.

2002-01-01

114

A produção científica sobre intoxicações por agrotóxicos na região serrana do Rio de Janeiro Scientific papers on intoxications by pesticides in the mountain region of Rio de Janeiro Producción científica acerca intoxicaciones por pesticidas en la región de montaña de Río de Janeiro  

Microsoft Academic Search

ReSumo: Buscou-se analisar a produção científica sobre intoxicação por agrotóxicos na região serrana do Rio de Janeiro. Para tanto, utilizou-se os periódicos disponíveis na Biblioteca Virtual de Saúde, no período de 1995 a 2005. A partir da técnica de análise de con- teúdo foram identificadas duas categorias centrais: percepção do risco de intoxicação e fatores relacionados às intoxicações humanas e

Maria Clara Coelho Camara; Carmem L. C. Marinho; Leila Costa; Maria Cristina R. Guilam

115

Uncountable categoricity of local abstract elementary classes with amalgamation  

Microsoft Academic Search

We give a complete and elementary proof of the following upward categoricity theorem: Let K be a local abstract elementary class with amalgama- tion and joint embedding, arbitrarily large models, and countable L ¨ owenheim- Skolem number. If K is categorical in @1 then K is categorical in every un- countable cardinal. In particular, this provides a new proof of

John T. Baldwin; Olivier Lessmann

2006-01-01

116

GASTROPATIAS POR ANTIINFLAMATORIOS NO ESTEROIDES  

Microsoft Academic Search

SUMMARY The Gastropathy by nonsteroidal antiinflammatory drugs (NSAIDs) are injuries, produced by the use of NSAIDs, that affects the gastroduodenal mucosal, besides involves esophagus,small and lar- ge intestine. There are different factors from risks associated with the patient, the drug and other factors, pro- nouncing themselves contradictions with respect to the E. Pilory. The suitable method of diagnose are endoscopy

Natalia Silvana; Araoz Olivos; Roxana Beatriz; Nancy Karina; Lilian Holzer; Mariana Teresa Mansilla

2005-01-01

117

El nuevo sistema de financiación autonómica. Una visión crítica. \\/The New Regional Financing System. A Critical Review  

Microsoft Academic Search

La reforma del sistema de financiación aprobada en julio del año 2009 es esencialmente diferente de las reformas de los sistemas de financiación anteriores. Por un lado, no ha venido exigida por el tradicional plazo de caducidad de los sistemas de financiación cada cinco años, sino por circunstancias esencialmente políticas. Por otro lado, se ha dicho que el nuevo sistema

J. AGUSTÍN MANZANO MOZO

2010-01-01

118

do aplicador de agrotóxicos na cultura da uva, com diferentes pulverizadores cultura da uva, com diferentes pulverizadores cultura da uva, com diferentes pulverizadores cultura da uva, com diferentes pulverizadores  

Microsoft Academic Search

Abstr Abstr Abstr Abstr Abstract: act: act: act: act: The aim of present study was to evaluate the dermal exposure of pesticide applicator, during spraying in grapes crop, with 4 different sprayers. The equipments utilized were a typical semi-stationery sprayer, a boom sprayer adapted with a semi-circulate boom with the nozzle returned upward, an airblast sprayer utilized in coffee crop

Hamilton H. Ramos; José V. G. Maziero; Kiyoshi Yanai; Ila M. Corrêa; Francisco J. Severino; Oscar Y. Kanno; Paulo S. Martins; Cláudio Mura; Marcelo A. Morgano

119

Microrganismos do solo produtores de fosfatases em diferentes sistemas agrícolas  

Microsoft Academic Search

RESUMO Considerando-se que uma forma de prover fosfato disponível para as plantas é através da atividade mineralizadora microbiana do fósforo orgânico, avaliou-se a influência da planta (braquiária, guandu e sem planta), dos fertilizantes (superfosfato simples, fosfato de rocha e sem adubo) e da calagem (com e sem calcário) nas populações de microrganismos produtores de fosfatases ácida e alcalina. Do total

Ely Nahas

2002-01-01

120

Milho para Ensilagem Colhido em Diferentes Estádios de Maturidade1  

Microsoft Academic Search

4 Aluno de graduação em Agronomia - UNIFENAS 5 Aluno (a) de graduação em Zootecnia - UNIFENAS Abstract: This research work was conducted in the agricultural crop of 2005\\/2006 on the José do Rosário Vellano University farm in Alfenas\\/MG, with the purpose of evaluating the effect of the maturity stage of the corn for ensiling on the percentage of DM,

Adauton Vilela de Rezende; Hélio Henrique Vilela; Fabiana Ribeiro Caldara; André Ricardo da Silva; Geraldo Benedito de Souza Almeida; Simone Silvia Senedese

121

A EFICIÊNCIA DOS PROGRAMAS EDUCATIVOS IMPLEMENTADOS POR EMPRESAS E ORGÃOS GOVERNAMENTAIS COMO FORMA DE PREVENÇÃO AO IMPACTO AMBIENTAL CAUSADO PELO DESCARTE INCORRETO DAS EMBALAGENS DE AGROTÓXICOS EM CAMPOS GERAIS NO SUL DO ESTADO DE MINAS GERAIS  

Microsoft Academic Search

Este estudo atua com uma ferramenta de feedback quanto aos resultados obtidos com os programas educacionais em combate ao descarte incorreto de embalagens vazias no município de Campos Gerais no Sul do Estado de Minas Gerais. Os objetivos são mensurar a eficiência dos -programas educativos implementados por empresas e órgãos governamentais como forma de prevenção ao impacto ambiental causado pelo

Jairo Gustavo De Lima; Marcelo Marcio Romaniello; Cristhiane Oliveira Da Graca Amancio

2008-01-01

122

Controle biológico natural de pulgões (Hemiptera: Aphididae) em lavoura de trigo por parasitóides (Hymenoptera, Aphidiinae), no município de Medianeira, PR, Brasil Natural biological control of aphids (Hemiptera: Aphididae) in a wheat field by parasitoids (Hymenoptera, Aphidiinae) in Medianeira, PR, Brazil  

Microsoft Academic Search

Os pulgões são um dos principais problemas fitossanitários da cultura do trigo no sul do Brasil, sendo alvo de um programa de controle biológico por parasitóides implantado no Brasil a partir da década de 1970. A despeito do sucesso inicial rapidamente obtido não há na região oeste do Paraná nenhum estudo recente avaliando a situação atual do controle biológico dos

Luis Francisco Angeli Alves; Tânia M. V. Prestes; Agostinho Zanini; Maria F. Dalmolin

123

Phenotypic and Genotypic Analyses of Neisseria gonorrhoeae Isolates That Express Frequently Recovered PorB PIA Variable Region Types Suggest that Certain P1a Porin Sequences Confer a Selective Advantage for Urogenital Tract Infection?  

PubMed Central

Typing of the porB variable region (VR) is an epidemiological tool that classifies gonococcal strains based on sequence differences in regions of the porB gene that encode surface-exposed loops. The frequent isolation of certain porB VR types suggests that some porin sequences confer a selective advantage during infection and/or transmission. Alternatively, certain porin types may be markers of strains that are successful due to factors unrelated to porin. In support of the first hypothesis, here we show urogenital tract isolates representing the most common PIA VR types identified in an urban clinic in Baltimore, MD, over a 10-year period belonged to several different clonal types, as determined by pulsed-field gel electrophoresis (PFGE). Serum resistance, which was confirmed by factor H and C4b-binding protein binding studies, was more often associated with gonococcal the most common VR types. In contrast, three porin-independent phenotypes, namely, lactoferrin utilization, ?-lactamase production, and multiple transferable resistance (Mtr), were segregated with the PFGE cluster and not with the VR type. Data combined with another PIA strain collection showed a strong correlation between serum resistance and the most common VR types. A comparison of VR typing hybridization patterns and nucleotide sequences of 12 porB1a genes suggests that certain porin loop 1, 3, 6, and/or 7 sequences may play a role in the serum resistance phenotype. We conclude that some PorB PIA sequences confer a survival or transmission advantage in the urogenital tract, perhaps via increased resistance to complement-mediated killing. The capacity of some porin types to evade a porin-specific adaptive immune response must also be considered.

Garvin, Lotisha E.; Bash, Margaret C.; Keys, Christine; Warner, Douglas M.; Ram, Sanjay; Shafer, William M.; Jerse, Ann E.

2008-01-01

124

LA SUSTITUCION DE MAIZ POR PULP A DE CITRICOS DESHffiRATADA SOBRE LA PRODUCCION Y COMPOSICION LACTEA DE VACAS ENCASTADAS HOLSTEIN EN EL TROPICO HUMEDO DE COSTA RICAl  

Microsoft Academic Search

Se evalu6 la sustituci6n de mafz por pul- Replacement of corn by dehydrated ci- pa de cftricos deshidratada en la dieta de ganado trus pulp on milk production and composition lechero, mediante la inclusi6n de 0, 15,30 Y 45% of crossbred Holstein in the humid tropics. A de la pulpa en el alimento balanceado. EI alimen- study was conducted to

Augusto Rojas-Bourrillon; Luis Gamboa; Milton Villareal

2001-01-01

125

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.

126

EFEITO DO PROCESSAMENTO PÓS-COLHEITA SOBRE A QUALIDADE DO CAFÉ CONILLON  

Microsoft Academic Search

RESUMO O presente trabalho avaliou a qualidade do café conillon submetido a três diferentes tipos de processamento pós-colheita: café natural, produzido por via seca, café descascado, produzido por via úmida sem a etapa de retirada da mucilagem, e café despolpado, produzido por via úmida com a etapa de retirada da mucilagem. Os atributos avaliados foram: fragrância, aroma, defeitos, acidez, amargor,

Sérgio Henriques Saraiva; Lilian Bozzi Zeferino; Suzana Maria Della Lucia; Luciano José Quintão Teixeira; Mateus da Silva Junqueira

2010-01-01

127

Neisseria gonorrhoeae Isolates with Reduced Susceptibility to Cefixime and Ceftriaxone: Association with Genetic Polymorphisms in penA, mtrR, porB1b, and ponA  

Microsoft Academic Search

reduced cefixime and ceftriaxone susceptibility (Cefi) and two susceptible isolates were characterized using serovar determination, antibiograms, N. gonorrhoeae multiantigen sequence typing (NG-MAST), and sequenc- ing of penA, mtrR, porB1b, and ponA alleles. For the Cefi isolates (n 18), the MICs of cefixime and ceftriaxone ranged between 0.032 to 0.38 g\\/ml and 0.064 to 0.125 g\\/ml, respectively. These isolates were assigned

Robert Lindberg; Hans Fredlund; Robert Nicholas; Magnus Unemo

2007-01-01

128

DETERMINACIÓN DE LAS RESERVAS DE CARBONO EN LA BIOMASA AÉREA DE SISTEMAS AGROFORESTALES DE Theobroma cacao L. EN EL DEPARTAMENTO DE SAN MARTÌN, PERU DETERMINATION OF CARBON RESERVATIONS IN THE AERIAL BIOMASS OF AGROFORESTRY SYSTEMS OF Theobroma cacao L. IN THE DEPARTMENT OF SAN MARTÌN, PERU  

Microsoft Academic Search

Resumen En este estudio se evaluó la biomasa aérea en seis diferentes sistemas agroforestales de cacao (Theobroma cacao L.) asociado con especies forestales maderables y frutales; con el propósito de conocer el potencial de captura de carbono por cada sistema. El estudio se realizó en dos diferentes sitios ubicados en la región San Martín (provincias de San Martín y Mariscal

Juanita Y. Concha; Julio C. Alegre; Vicente Pocomucha

129

MEDICIÓN DE LA FUNCIÓN DE DISTRIBUCIÓN BIDIRECCIONAL DE TRANSMITANCIA Y LA FUNCIÓN DE TRANSFERENCIA DE MODULACIÓN PARA MATERIALES DIFUSORES ASSESSMENT OF BIDIRECTIONAL TRANSMISSION DISTRIBUTION FUNCTIONS (BTDF) AND THE MODULATION TRANSFERENCE FUNCTION (MTF) FOR DIFUSSIVE MATERIALS  

Microsoft Academic Search

Las mediciones tradicionales de transmitancia resultan insuficientes para caracterizar ópticamente el comportamiento de materiales difusores en diferentes aplicaciones. En este trabajo se describe, por una parte, la implementación de un sistema de medición de la función de distribución bidireccional de transmitancia (BTDF), que en este caso se identifica con la función de punto extendido (PSF), de diferentes muestras de materiales

Corregidor Diego; Jaén Mirta; Sandoval José

130

EL CONCEPTO DE CONSONANCIA EN LA TEORÍA MUSICAL. DE LA ESCUELA PITAGÓRICA A LA REVOLUCIÓN CIENTÍFICA  

Microsoft Academic Search

El fenómeno de la consonancia musical siempre ha intrigado a teóricos de todas las épocas. Desde la escuela pitagórica y su tetraktys, pasando por el numero senario de Zarlino y las teorías de Helmholtz, hasta nuestros días, se han buscado diferentes explicaciones al hecho de que sonidos musicales diferentes que son percibidos simultáneamente puedan o no resultar consonantes. En ocasiones

Amaya Sara García Pérez

2005-01-01

131

Trabalho rural e intoxicações por agrotóxicos  

Microsoft Academic Search

Pesticide use is intensive in Brazilian agriculture. Popula- tion-based studies on the characteristics of pesticide use and pesticide poisoning are scarce. This study describes the profile of occupational exposure and pesticide poisoning incidence. Farm characteristics and pesticide occupational exposure were evaluated using a cross-sectional design. Among 1,379 farmers\\/ farm workers, annual incidence of pesticide poisoning was 2.2 episodes per 100

Neice Müller Xavier Faria; Luiz Augusto Facchini; Anaclaudia Gastal Fassa; Elaine Tomasi

2004-01-01

132

Restauração de imagens NOAA por Morfologia Matemática  

Microsoft Academic Search

The striping effect on NOAA image can be reduced by using the Mathematical Morphology tools. At the first stage, the corrupted pixels are localized and, at the second stage, their values are interpolated from the uncorrupted neighbored pixel values. The implemented algorithm uses the Mathematical Morphol- ogy Toolbox for the KHOROS system.

GERALD JEAN; FRANCIS BANON; ANA LÚCIA BEZERRA CANDEIAS

133

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

134

Dismenorrea por útero unicorne con cuerno rudimentario  

Microsoft Academic Search

Dysmenorrhea is highly frequent in adolescents and young women, affecting 40-50% of this population to some degree.Unicornuate uterus with rudimentary horn and functional endometrium can cause dysmenorrhea due to the distension produced by blood in a closed cavity and the consequent development of hematometra, hematosalpinx, and retrograde menstruation. Treatment is necessarily surgical and the recommended intervention is excision of the

Borja Rivero; Iurdana Aizpitarte; Ainhoa Elvira; José Ramón Becerro

2007-01-01

135

Infecciones causadas por el género Malassezia  

Microsoft Academic Search

Summary The yeast from the gender Malassezia sp, previously called Pityrosporum are found as part of the microbiota of the skin and 92 to 100% of them have been isolated from healthy people. The taxonomy of the gender has been controversial since it was named M. furfur. These opportunistic yeasts are related with some human and animal (mamifers) diseases and

R. Arenas

136

Infecção natural por Trypanosoma evansi em cães  

Microsoft Academic Search

The present paper describes cases of natural infection by Trypanosoma evansi in dogs that eventually died in Uruguaiana, in the southern Brazilian state of Rio Grande do Sul, Brazil. The animals from the rural zone were admitted to the Pontifícia Universidade Católica do Rio Grande do Sul (PUC-RS) Veterinary Hospital presenting the following clinical signs: apathy, fever and enlargement of

Cristina Braccini Colpo; Silvia Gonzalez Monteiro; Daniel Roulim Stainki; Elida Teresita Braccini Colpo; Graciela Braccini Henriques

2005-01-01

137

Inspecciones de Productos Regulados por el CBER  

Center for Biologics Evaluation and Research (CBER)

Text Version... la Ley de Alimentos, Fármacos y Cosméticos, o Ley FD&C (Food, Drug and ... Se invita a un investigador de la oficina distrital local en la ubicación de ... More results from www.fda.gov/downloads/biologicsbloodvaccines/internationalactivities

138

Nuevas voces por la justicia social  

Microsoft Academic Search

New Voices for Social Justice illustrates the discovery by the dalits, the groups most oppressed by the Indian caste system, of writing, particularly poetry, as a weapon in their fight against discrimination. It quotes men and women writing in several of the languages and dialects of India on subjects from extreme poverty and filth to humiliations and exclusions. It refers

Rowena Hill

139

Pansinusitis y afectación intracraneal por implante dental  

Microsoft Academic Search

Odontogenic sinusitis is a relatively common disease caused by dental infections, periapical cysts and oral procedures such as root canal, sinus lift or implant placement. We report an extreme case of a right pansinusitis with an epidural space fistula caused by osseointegrated implants. When maxillary sinusitis of odontogenic origin is suspected, we should quickly start effective antibiotic treatment and monitor

Josep Rubio-Palau; Jordi García-Linares; Javier Gutiérrez-Santamaría; Juan Antonio Hueto-Madrid; Mitchel Chávez-Gatty; Eduard Ferrés-Padró

140

Síndrome de Stevens-Johnson y necrólisis epidérmica tóxica por profilaxis con TARGA en el Hospital Nacional Almanzor Aguinaga Asenjo, Lambayeque,Perú Stevens Johnson syndrome and toxic epidermal necrolysis induced by HAART prophylaxis in the National Hospital Almanzor Aguinaga Asenjo, Lambayeque, Perú  

Microsoft Academic Search

RESUMEN Síndrome de Stevens-Johnson (SSJ) y necrólisis epidérmica tóxica (NET) son reacciones inflamatorias agudas originadas por hipersensibilidad (reacción inmunológica), que incluye piel y membranas mucosas. Se presenta un caso de reacción adversa medicamentosa en un paciente varón de 25 años, que recibió profilaxis con Terapia Antiretroviral de Gran Actividad. Presentó exantema, que progresa a SSJ y evoluciona a NET. Permaneció

Victor A. Soto Cáceres; Rosa E. Rodríguez Barboza

2007-01-01

141

TURISMO SUSTENTABLE: EL PLANTEAMIENTO INICIAL PARA UNA DISCUSIÓN QUE CONTINÚA…  

Microsoft Academic Search

El desarrollo es un término que ha despertado un extenso debate dentro de las filas de la antropología. Dos tendencias, van a surgir en los abordajes teóricos sobre el desarrollo. Por un lado, la liberal la cual presupone que existen sociedades ubicadas en estadios diferentes de desarrollo cuya carrera es en forma lineal y se lleva a cabo por el

Maximiliano Korstanje

2009-01-01

142

EL OCIO LATINO Y EL TURISMO: COMENTARIOS CRÍTICOS  

Microsoft Academic Search

El siguiente trabajo trata sobre la revisión del capítulo I del clásico Historia del Turismo, escrito por el prestigioso investigador Miguel Khatchikian y publicado en el 2000 por la Universidad San Martín de Porres en Perú. Su obra trata con rigurosidad científica las diferentes etapas del turismo hasta la actualidad. Comprendido, además, que la Historia del turismo es la historia

Maximiliano Korstanje

2008-01-01

143

COMO O COMPORTAMENTO DAS ABELHAS NA FLOR DO MORANGUEIRO (Fragaria ananassa Duchesne) INFLUENCIA A FORMAÇÃO DOS FRUTOS? HOW BEE BEHAVIOR ON STRAWBERRY FLOWER (Fragaria ananassa Duchesne) CAN INFLUENCE FRUIT DEVELOPMENT?  

Microsoft Academic Search

RESUMO: Para avaliar o efeito do comportamento de três espécies de abelhas na polinização e produção de morangos, flores primárias dos cultivares Oso Grande (OS) e Sweet Charlie (SC) foram expostas a diferentes tratamentos de polinização: OS - uma e quatro visitas por Trigona spinipes (Apidae), uma visita por Dialictus sp (Halictidae) e quatro visitas mistas (Apis mellifera e T.

Kátia Sampaio MALAGODI-BRAGA

144

Chlamydia trachomatis clinical isolates identified as tetracycline resistant do not exhibit resistance in vitro: whole-genome sequencing reveals a mutation in porB but no evidence for tetracycline resistance genes.  

PubMed

Chlamydia trachomatis is the most common bacterial sexually transmitted infection worldwide and the leading cause of preventable blindness in developing countries. Tetracycline is commonly the drug of choice for treating C. trachomatis infections, but cases of antibiotic resistance in clinical isolates have previously been reported. Here, we used antibiotic resistance assays and whole-genome sequencing to interrogate the hypothesis that two clinical isolates (IU824 and IU888) have acquired mechanisms of antibiotic resistance. Immunofluorescence staining was used to identify C. trachomatis inclusions in cell cultures grown in the presence of tetracycline; however, only antibiotic-free control cultures yielded the strong fluorescence associated with the presence of chlamydial inclusions. Infectivity was lost upon passage of harvested cultures grown in the presence of tetracycline into antibiotic-free medium, so we conclude that these isolates were phenotypically sensitive to tetracycline. Comparisons of the genome and plasmid sequences for the two isolates with tetracycline-sensitive strains did not identify regions of low sequence identity that could accommodate horizontally acquired resistance genes, and the tetracycline binding region of the 16S rRNA gene was identical to that of the sensitive control strains. The porB gene of strain IU824, however, was found to contain a premature stop codon not previously identified, which is noteworthy but unlikely to be related to tetracycline resistance. In conclusion, we found no evidence of tetracycline resistance in the two strains investigated, and it seems most likely that the small, aberrant inclusions previously identified resulted from the high chlamydial load used in the original antibiotic resistance assays. PMID:23378575

O'Neill, C E; Seth-Smith, H M B; Van Der Pol, B; Harris, S R; Thomson, N R; Cutcliffe, L T; Clarke, I N

2013-02-01

145

Characterization of fHbp, nhba (gna2132), nadA, porA, and sequence type in group B meningococcal case isolates collected in England and Wales during January 2008 and potential coverage of an investigational group B meningococcal vaccine.  

PubMed

Invasive disease caused by meningococcal capsular groups A, C, W-135, and Y is now preventable by means of glycoconjugate vaccines that target their respective polysaccharide capsules. The capsule of group B meningococci (MenB) is poorly immunogenic and may induce autoimmunity. Vaccines based on the major immunodominant surface porin, PorA, are effective against clonal epidemics but, thus far, have a limited scope of coverage against the wider MenB population at large. In an alternative approach, the first-generation, investigational, recombinant MenB (rMenB) plus outer membrane vesicle (OMV) (rMenB-OMV) vaccine contains a number of relatively conserved surface proteins, fHBP, NHBA (previously GNA2132), and NadA, alongside PorA P1.4-containing OMVs from the New Zealand MeNZB vaccine. MenB currently accounts for approximately 90% of cases of meningococcal disease in England and Wales. To assess potential rMenB-OMV vaccine coverage of pathogenic MenB isolates within this region, all English and Welsh MenB case isolates from January 2008 (n = 87) were genetically characterized with respect to fHBP, NHBA, NadA, and PorA. Alleles for fHbp, nhba, and porA were identified in all of the isolates, of which 22% were also found to harbor nadA alleles. On the basis of genotypic data and predicted immunological cross-reactivity, the potential level of rMenB-OMV vaccine coverage in England and Wales ranges from 66% to 100%. PMID:20375242

Lucidarme, Jay; Comanducci, Maurizio; Findlow, Jamie; Gray, Stephen J; Kaczmarski, Edward B; Guiver, Malcolm; Vallely, Pamela J; Oster, Philipp; Pizza, Mariagrazia; Bambini, Stefania; Muzzi, Alessandro; Borrow, Ray

2010-04-07

146

Produção hidropônica de bat ata em diferentes concentrações de solução nutritiva e épocas de cultivo  

Microsoft Academic Search

The objectives of this work were to evaluate photosynthetic efficiency and hydroponic production of potato minitubers, in different concentrations of nutrient solution and growing seasons. The experiment was carried out inside a screenhouse, in a closed hydroponic system with sand as growing media, during fall and spring of 2005. The nutrient solution concentrations of 0.5, 1, 1.5, 2 and 2.5

Douglas Renato Muller; Dilson Antônio Bisognin; Jerônimo Luiz Andriolo; Jacso Dellai; Francis Copetti

147

Erosão hídrica em um Argissolo Vermelho-Amarelo, sob diferentes padrões de chuva simulada  

Microsoft Academic Search

This study was carried out in order to determine the soil, water and nutrient losses in a Yellow-Red Ultisol, under four different patterns of simulated rainfall. The experiment was conducted at the Embrapa Agrobiologia experimental field, located in the municipality of Seropédica, Rio de Janeiro, Brazil. The study consisted in the application of simulated rains using variable rainfall intensity classified

João R. de Oliveira; Marinaldo F. Pinto; Wanderley de J. Souza; José G. M. Guerra; Daniel F. de Carvalho

2010-01-01

148

Evaluación de las alteraciones de la comprensión de textos en diferentes tipos de lesión cerebral  

Microsoft Academic Search

IntroductionBoth decoding and reading comprehension can be affected by brain injuries depending on type and localization. Impairments of decoding (alexia) are assessed with tasks included in batteries to study aphasic patients. The assessment of text comprehension impairments, despite its frequency and ecological importance, has received fewer attention and the tools to evaluate it in pathologies other than aphasia are sparse.

Bárbara Sampedro; Aldo Ferreres; Valeria Abusamra; Julia Otero; Andrea Casajús; Romina Cartoceti

149

Desempenho de híbridos de milho submetidos a diferentes espaçamentos e densidades populacionais  

Microsoft Academic Search

The objective of this work was to evaluate the influence of row spacing and population densities on yield and yield components of two maize (Zea mays) hybrids. The experiment was carried out in the agricultural year 2006\\/2007, in a Typical Haplustox, in a clay texture soil, in Jaboticabal, SP, Brazil. The experimental design was a randomized complete block, with split-split

Claudia Sousa Demétrio; Domingos Fornasieri Filho; Jairo Osvaldo Cazetta; Disnei Amélio Cazetta

2008-01-01

150

Aspectos histoquímicos e morfológicos de grãos de café de diferentes qualidades  

Microsoft Academic Search

This research studied the histological and morphological aspects of the dry grain coffee classified as 'mole, 'dura' and 'rio' beverage. Concomitantly to these studies there were realized in each group of grains, potassium lixiviation, electric conductivity and polyphenol oxidase activity. A higher potassium lixiviation with the consequent increase in electric conductivity showed to be a strong indicator of membrane and

Patrícia de Fátima Pereira Goulart; José Donizeti Alves; Evaristo Mauro de Castro; Daniela Deitos Fries; Marcelo Murad Magalhães; Hyrandir Cabral de Melo

2007-01-01

151

GERMINABILIDADE E TOLERÂNCIA À DESSECAÇÃO EM SEMENTES DE MILHO COLHIDAS EM DIFERENTES ESTÁDIOS DE MATURAÇÃO  

Microsoft Academic Search

Aiming at obtaining additional subsides to decision-making concerning harvest time and corn seeds drying on ears, biochemical and physiological aspects of seeds harvested at different milk line stages and submitted to artificial drying were studied. The experiments were accomplished at UFLA Seed Laboratory in association with Monsanto do Brasil S.A. Seeds of the hybrids AG-9090, AG-9010, DKB-350 and DKB- 747,

RENZO GARCIA VON PINHO; ÉDILA VILELA DE RESENDE VON PINHO; RENATO MENDES GUIMARÃES; FABRÍCIO ELIAS DE OLIVEIRA FREITAS

152

Ação de diferentes soluções de própolis na superfície dentinária - avaliação ultra-estrutural  

Microsoft Academic Search

The propolis is a natural product, collected by the bees, of the sprouts of trees flowers and pollen and known by its biological properties: antibacterial activity, anti-inflammatory activity, healing, anti-fungal activity, etc. In this in vitro research the extract of ethyl alcohol propolis was evaluated as a cleaning agent of the dentinal surface of 15 teeth divided in five groups.

CLEUSA APARECIDA; CAMPANINI GERALDINI; ELIZABETH GODOY; CEZAR SALGADO

153

"Diferente Desde Aqui": Twenty-Four Ways of Looking at Religious Education  

ERIC Educational Resources Information Center

This article presents an overview of how "Christian religious education" as a "polydoxical" discipline is being taught, based on a survey of 24 syllabi of graduate courses offered by scholars teaching in Mainline Protestant, Evangelical Protestant, and Catholic theological schools. The review offers an account of how the scholars frame the…

Tran, Mai-Anh Le

2011-01-01

154

Fatores que influenciam o prognóstico deambulatório nos diferentes níveis de lesão da  

Microsoft Academic Search

SUMMARY Objective: to determine which factors they influence the prognostic ambulatory for the different levels of injury of the MMC, adding excellent information for the manaje physical therapy. Method: bibliographical revision through books that are part of the quantity of the Padre Innocente Radrizzani library of the Centro Universitário São Camilo and scientific articles searched by the databases Medline and

Ramos FS; Macedo LK; Scarlato A; Herrera G

155

Padrão de qualidade de mudas de Trema micrantha (L.) Blume, produzidas sob diferentes períodos de sombreamento  

Microsoft Academic Search

This work aimed to verify the influence of the under shading period in the parameters employed to evaluate Trema micrantha (crindiúva) seedling quality pattern. The research was carried out using a randomized design, with four replications per treatment and 88 plants per replication. Three evaluations were performed at 90, 120 and 150 days after emergence. The following treatments were used

Ésio de Pádua Fonseca; Sérgio Valiengo Valéri; Édison Miglioranza; Nilva Aparecida Nicolao Fonseca; Laércio Couto

2002-01-01

156

Comparação de diferentes abordagens para avaliação da incerteza na cromatografia gasosa do gás natural  

Microsoft Academic Search

COMPARISON OF DIFFERENT APPROACHES TO EVALUATE THE UNCERTAINTY OF GAS CHROMATOGRAPHY FOR NATURAL GAS. The evaluation of uncertainty associated with an analytic result is an essential part of the measurement process. Recently, several approaches to evaluate the uncertainty in measurement have been developed. Here, the gas chromatography assay uncertainty for natural gas is compared by some of these approaches: the

Elcio Cruz de Oliveira; Paula Fernandes de Aguiar

2009-01-01

157

Avaliação de sementes de melancia submetidas a diferentes períodos de envelhecimento acelerado com solução salina  

Microsoft Academic Search

Evaluation of cucumber seeds submited to differents periods of speed aging test with salt solution The presente work had the purpose to evaluate the germination and the cucumber seeds emergence submited to differents periods of exposition to speed aging test with salt solution. Speed aging test was made with a NaCl satured solution, under temperature of 41ºC during 0, 48,

Cristina B. de Lima; Nair M. T. Bellettini; Marcela A. V. Vieira; Ana L. C. Moda; Luciani Bassi; Jamile K. Janani; Ana Paula Cheirubim

158

ESTUDO COMPARATIVO DA PRODUÇÃO DE TOMATE SOB DIFERENTES AMBIENTES E SISTEMAS HIDROPÔNICOS  

Microsoft Academic Search

The proposed project intends to utilize different hydroponics systems whits Aeroponics that allow to create a cooling zone covering the entire plant (aerial and root parts). However, there is the necessity to adapt the Aeroponics system in order to cool the plant environment (nutritive solution and the air). It will be utilized three types of systems to cultivate the hybrid

WELLINGTON MARY; PAULO MARTINS LEAL

159

Algunas relaciones entre diferentes ejes que se consideran en la rotación de la Tierra.  

NASA Astrophysics Data System (ADS)

In this paper some relations between the "Celestial Ephemeris Pole" and several axes are considered for an elementary elastic earth model. The authors give a geometrical and geodynamical interpretation.

Camacho, A. G.; Sevilla, M. J.

160

A phase 1 study of a meningococcal native outer membrane vesicle vaccine made from a group B strain with deleted lpxL1 and synX, over-expressed factor H binding protein, two PorAs and stabilized OpcA expression  

Microsoft Academic Search

This phase I clinical trial assessed the safety and immunogenicity of a native outer membrane vesicle (NOMV) vaccine prepared from an lpxL1(?) synX(?) mutant of strain 8570(B:4:P1.19,15:L8-5) of Neisseria meningitidis. Additional mutations enhance the expression of factor H binding protein variant 1 (fHbp v.1), stabilize expression of OpcA and introduce a second PorA (P1.22,14). Thirty-six volunteers were assigned to one

P. B. Keiser; S. Biggs-Cicatelli; E. E. Moran; D. H. Schmiel; V. B. Pinto; R. E. Burden; L. B. Miller; J. E. Moon; R. A. Bowden; J. F. Cummings; W. D. Zollinger

2011-01-01

161

Higienização em Prótese Parcial removível Cleaning Way S Of RemOvable PaR tial DentUReS  

Microsoft Academic Search

resUmo: Introdução e Métodos: Este estudo tem o objetivo de fazer uma revisão de literatura sobre os meios de higienização para prótese parcial removível, já que esta necessita de cuidados diferentes da prótese total e da prótese removível provisória por possuir metal em sua composição. Dentre os meios para desinfecção estão os mecânicos (escovas, microondas e ultrasom) e químicos (peróxidos

Sugano Denise Kazuo; Ueno Camila; Satie Ferreira; Kamoi Daniela Justo; Otani Eliane Rye; Uemura Eduardo Shigueyuki

162

A través de los ojos de Carl Marx: reseña de los escritos de Marx sobre América Latina en Alberto Fillipi  

Microsoft Academic Search

La historia de las instituciones latinoamericanas es compleja, densa y ambivalente. Italiano de nacimiento, pero venezolano por opción; el profesor Alberto Fillipi es considerado como uno de los principales estudiosos de las instituciones latinoamericanas en el mundo. En su obra, Las Instituciones e Ideologías en la Independencia Hispanoamericana, Fillipi recoge un conjunto de ensayos los cuales fueron escritos en diferentes

Maximiliano Korstanje

2007-01-01

163

DISCURSO DE LA PERSPECTIVA TÉCNICA EN EL ESTUDIO DEL TURISMO  

Microsoft Academic Search

Actualmente, el turismo puede ser comprendido en tanto que actividad económica también como un aspecto psico-social (Kadt, 1992) (Jiménez-Guzmán, 1986) cuyas implicancias aún han sido poco exploradas, o mejor dicho poco difundidas en comparación con otras disciplinas. Por otro lado, también es cierto que cada disciplina (Management, geografía, psicología, sociología) ha propuesto un modelo diferente para el estudio y la

Maximiliano E. Korstanje

2010-01-01

164

¿CIENCIA DEL TURISMO O CÍNICO PASATIEMPO ACADÉMICO?  

Microsoft Academic Search

Los términos y las palabras son funcionales a la vida social, permiten que los hombres puedan compartir marcos de referencia en forma coherente. Sin embargo, en ocasiones la permeabilidad o el uso ideológico de los mismos llevan a confusiones o a callejones sin salida. El siguiente artículo crítico ha sido escrito por medio de diferentes trabajos realizados durante 4 años

Maximiliano Korstanje; Francisco Muñoz de Escalona

2011-01-01

165

DE VIAJES Y MIEDOS: LA AGORAFOBIA COMO UNA FORMA DE CONTROL ECONÓMICO  

Microsoft Academic Search

El objetivo del siguiente trabajo es describir casos análogos de fobia o miedo a los viajes en otras culturas y tiempos diferente a los modernos. En este sentido, consideramos que tanto la cultura aymará como la vida en la antigua roma nos proveen de ejemplos suficientes para considerar a la fobia a los viajes como un problema en extensión. Por

Maximiliano Korstanje

2008-01-01

166

COMENTARIOS SOBRE LA SATURACIÓN VISUAL: la paradoja de la mayoría  

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

Maximiliano Korstanje

2008-01-01

167

LA EDUCACIÓN AMBIENTAL DESDE UN ENFOQUE INTERDISCIPLINAR EN ESTUDIANTES DE LA CARRERA INGENIERÍA EN AGRONOMÍA ORIENTADA AL DESARROLLO SOSTENIBLE  

Microsoft Academic Search

La investigación objeto de análisis ofrece un estudio teórico curricular para determinar la presencia del sistema de contenidos, conceptos, habilidades y valores básicos de la problemática relacionada con la Educación Ambiental desde un enfoque interdisciplinario en la carrera de Agronomía, aunque este campo de investigación es muy ilustrado por diferentes autores nacionales e internacionales, se debe señalar que todavía existen

Orlando Rodríguez Ávila

2010-01-01

168

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

169

Efecto de la irradiación luminosa en la aclimatación de Mammillaria carmenae Castañeda (Cactaceae) proveniente de cultivo in vitro  

Microsoft Academic Search

Resumen Se reprodujo Mamillaria carmenae por cultivo in vitro a partir de areolas de una planta etiolada in vivo. Se obtuvieron plantas a partir de callos, las cuales se aclimatizaron bajo diferentes tratamientos de irradiación luminosa (50, 150 y 970 µmol m -2 s -1 ) bajo condiciones de invernadero. Durante la acli- matación se registraron la variación en el

Coca Soriano; Ortiz Montiel; Juan Gerardo; Sánchez Correa; Pérez Crisanto Joel

170

Controle de qualidade de produtos à base de plantas medicinais comercializados na cidade do Recife-PE: erva-doce (Pimpinella anisum L.), quebra-pedra (Phyllanthus spp.), espinheira santa (Maytenus ilicifolia Mart.) e camomila (Matricaria recutita L.) 1  

Microsoft Academic Search

RESUMO: As plantas têm sido bastante utilizadas para a cura de doenças e por isso, a cada dia, mais fitoterápicos têm sido colocados à disposição no mercado. Apesar do aumento no consumo de diferentes produtos a base de plantas medicinais, fatores como a precariedade na fiscalização da produção e da venda têm comprometido a qualidade dos mesmos. O presente trabalho

V. T. Nascimento; E. U. Lacerda; J. G. Melo; E. L. C. Amorim

171

EFEITO DE PREPAROS E CULTURAS DE COBERTURA VEGETAL SOBRE AS PROPRIEDADES FÍSICAS DO SOLO E A PRODUTIVIDADE DA MANDIOCA NA REGIÃO OESTE DO PARANÁ - BRASIL  

Microsoft Academic Search

RESUMO: O preparo convencional é muito utilizado para o cultivo da mandioca e tem preocupado produtores, técnicos, agrônomos e pesquisados em função dos problemas ambientais associados e este tipo de manejo. Dessa forma, o presente trabalho objetivou avaliar as propriedades físicas do solo e a produtividade da mandioca proporcionada por diferentes sistemas de preparo. O experimento foi realizado no município

Emerson FEY; Arno Udo DALLMEYER; Laércio Augusto PIVETTA; Laerte Gustavo PIVETTA; Julio Henrique de SOUZA

172

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

173

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

174

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

175

HAMMONDIA HEYDORNI, NEOSPORA CANINUM E TOXOPLASMA GONDII EM CAPRINOS ABATIDOS NO ESTADO DA BAHIA, BRASIL  

Microsoft Academic Search

Resumo Hammondia heydorni, Neospora caninum e Toxoplasma gondii são protozoários coccídios que parasitam diferentes espécies animais domésticas e silvestres. E nquanto a infecção por H. heydorni parece ser assintomática, N. caninum e T. gondii podem provocar alterações reprodutivas em ruminantes. N. caninum é um importante causador de abortamentos em bovinos, ao passo que T. gondii induz a abortamentos em caprinos

R. S. UZÊDA; K. ABE-SANDES; L. F. P. GONDIM

176

Evaluación paramétrica y no paramétrica del desempleo pesquero en Marruecos: Una aplicación para el caso andaluz  

Microsoft Academic Search

RESUMEN El principal objetivo es el análisis de las medidas que las diferentes administraciones pusieron en marcha para reducir las altas tasas de desempleo en la población andaluza afectada por la paralización de la actividad pesquera como consecuencia de la finalización del Acuerdo de Pesca entre la Unión Europea y Marruecos desde el 30 de noviembre de 1999. Mediante la

Encarnación Cordón Lagares; Félix García Ordaz

2010-01-01

177

Insuficiencia renal aguda por linfoma de Burkitt renal primario bilateral  

Microsoft Academic Search

We report the case of a 12 year-old girl who presented with acute renal failure with massive infiltration in both kidneys due to a Burkitt lymphoma that was diagnosed by percutaneous renal biopsy.This case fulfilled all the diagnostic criteria of Malbrain et al. to be considered as primary renal non-Hodgkin lymphoma.We discuss the differential diagnosis with other processes that present

A. Romay Ageitos; J. Freire Bruno; A. M. López Vázquez; I. Castro López; A. Pavón Freire

2010-01-01

178

Durabilidade de compósito biomassa vegetal-cimento modificado por polímero  

Microsoft Academic Search

DURABILITY OF CELLULOSE-CEMENT COMPOSITES MODIFIED BY POLYMER ABSTRACT: The durability of the cellulose-cement composites is a decisive factor to introduce such material in the market. Polymers have been used in concrete and mortar production to increase its durability. The goal of this work was the physical and mechanical characterization of cellulose-cement composites modified by a polymer and the subsequent durability

Lia L. Pimentel; Antonio L. Beraldo; Holmer Savastano Júnior

2006-01-01

179

Espectro de enfermedad cardiovascular en pacientes infectados por el VIH  

Microsoft Academic Search

A large body of evidence indicates that HIV-infected patients, both men and women, as well as adults and children, have a higher risk of developing arteriosclerotic cardiovascular disease. This evidence comes from studies whose main primary variables were the clinical manifestations of arteriosclerotic cardiovascular disease (acute myocardial infarction, silent myocardial ischemia, stroke and peripheral arterial disease) and the distinct markers

Fernando Lozano

2009-01-01

180

RESPUESTASRAPIDAS BIFASICAS DEL SISTEMA INMUNE POR FRUSTRACION y EUFORIAl  

Microsoft Academic Search

This article is divided into three seclions. The first part presents a description of a project of investigation about the efects of frustration and euphoria in the irnmune system, social and maternal behaviorin rats, and the rol of context in these effects. The second part describes the main results of the effects of consumatory succesive negative.and posilive contrast (CSNCand csrc)

ALBA EUSABETH MUSTACA

181

Custos das Mortes por Causas Externas no Brasil  

Microsoft Academic Search

Violence in Brazil is well known to be one of the biggest problems nowadays affecting the society. This problem incurs in several economic costs, in addition to all kinds of immeasurable costs due to life losses. For the economic costs, we can mention, for example, medical treatment costs, police maintenance costs, production costs. In this paper, we focus in the

Alexandre X. Carvalho; Daniel R. C. Cerqueira; Rute I. Rodrigues; Waldir J. A. Lobão

2007-01-01

182

Hepatitis colestática grave por fiebre Q: presentación de un caso  

Microsoft Academic Search

Severe cholestatic hepatitis due to Coxiella burnetii is a rare form of clinical presentation of acute Q fever that is only occasionally detected in association with this infectious disease. We report a case of severe cholestatic hepatitis due to acute Q fever, with clinical signs of hepatic insufficiency, marked cholestasis, and renal insufficiency. The results of the initial serologic study

Saturnino Suárez Ortega; José Rivero Vera; Marion Hemmersbach; Fernando Artiles Campelo; Ricardo Reyes Pérez; Pedro Betancor León

2010-01-01

183

Anorexia por actividad: una revisión teórica y experimental  

Microsoft Academic Search

In the present study, we describe the phenomenon of the activity anorexia in rats. The procedures that have been used for in this experimental study in the laboratory are revised, as well as the main factors that influence its development. The most relevant theories that have tried to explain the origin of this behaviour are also presented. Lastly, we propose

María Teresa Gutiérrez Domínguez; Ricardo Pellón

2002-01-01

184

Infección por VPH en mujeres con artritis reumatoide  

Microsoft Academic Search

Background: Human papillomavirus (HPV) is the main risk factor for the development of cervical cancer, which remains the most com- mon malignancy in our country. There are studies in which immunosuppressed patients have an increased risk of suffering an infection by HPV. Objective: To determine the prevalence of HPV infection in patients with rheumatoid arthritis (RA) compared with women matched

Diana E Flores Alvarado; Rocío Ortiz López; Mario Alberto; Garza Elizondo; Jacqueline Rodríguez Amado; Brenda R Vázquez Fuentes; Anajulia González Betancourt

185

Presentación atípica de tuberculosis peritoneal: Caso clínico diagnosticado por laparoscopia  

Microsoft Academic Search

The presence of peritoneal tuberculosis has to be clinically sus - pected in all patients with abdominal pain of unknown etiology, particularly when it is accompanied by fever, ascites, and abdomi - nal distension. Access to the abdominal cavity using routine la - paroscopy provides essential information on the diagnosis, from both macroscopic images and biopsy sampling, which will later

J. M. Suárez Grau; C. Rubio Chaves; J. L. García Moreno; J. A. Martín Cartes; M. Socas Macías; J. M. Álamo Martínez; F. López Bernal; H. Cadet Dussort; M. Bustos Jiménez; J. D. Tutosaus Gómez; S. Morales Méndez

2007-01-01

186

Ciencia en el CBER: ¿Por Qué, Cómo y Qué?  

Center for Biologics Evaluation and Research (CBER)

Text Version... DIAPOSITIVA 20 También en el área de las vacunas hay un trabajo publicado en el Journal of Virology, que describe un ensayo mejorado para ... More results from www.fda.gov/downloads/biologicsbloodvaccines/internationalactivities

187

Orientación y Reforma: el reto de la intervención por programas  

Microsoft Academic Search

This work analyses the guidance functions from the referente frame of the controversy Services versus Programs. The author defends the thesis that the intervention through programs is the right way of guidance practice in the educational reform aproved kv the Ley de Ordenación del Sistema Educativo. On the other hand, it is pointed out the determinant factors of the programs

Sebastián Rodríguez Espinar

188

Por uma agenda de pesquisa em democracia eletrônica  

Microsoft Academic Search

The mechanisms of democratic participation provided by the new technologies of information and communication represent the possibility of widening the public space. The creation of channels such as online discussion foruns ans public consultations brings a promissing advance, but their results were not satisfactorily studied yet. This paper revises theories which have been supported investigations in this field, characterizes recent

Danilo Rothberg

2008-01-01

189

Deterioro de los bosques de Canadá por contaminación del aire  

Microsoft Academic Search

SUMMARY This paper discusses the role of air pollution in the dieback of forests in the northem hemisphere. Its emphasis is on the situation in Canada and the Canadian Chemistry of High Elevation Fog project. Topies to be discussed are the extent of the diebackand its consequencesand possible causesas well as the field measurementsthat arebeingmade at the present time.

PILAR CERECEDA TRONCOSO; ROBERTS. SCHEMENAUER

190

Neuropatía inducida por quimioterapia: un problema no resuelto  

Microsoft Academic Search

IntroductionChemotherapy-induced peripheral neuropathy (CIPN) is the most prevalent neurological complication of cancer treatment, affecting a third of all patients who undergo chemotherapy. CIPN impairs functional capacity, compromises the quality of life and results in dose reduction or cessation of chemotherapy, representing a dose-limiting side effect of many antineoplastic drugs. In addition to classic, novel agents, bortezomib and oxaliplatin have been

R. Velasco; J. Bruna

2010-01-01

191

Brote por Salmonella enteritidis en trabajadores de un hospital  

Microsoft Academic Search

Objective. To describe and identify the causes of an out- break of Salmonella enteritidis gastroenteritis that took place in June 1998, among tertiary care hospital workers, in Me- xico City. Material and methods. Cases were hospital workers who developed diarrhea or fever associated with gastrointestinal symptoms, after a meal at the hospital's dining room on June eight; controls were asymptomatic

Ma. Eugenia Chávez-de la Peña; Anjarath L. Higuera-Iglesias; Martha A. Huertas-Jiménez; Rosa Báez-Martínez; Josefina Morales-de León; Fernando Arteaga-Cabello; Sigfrido Rangel-Frausto; Samuel Ponce de León-Rosales

2001-01-01

192

Osteoporosis secundaria y Osteoporosis inducida por glucocorticoides (OIG)  

Microsoft Academic Search

Osteoporosis is a major public health problem in a worldwide and its prevalence is increasing. The secondary osteoporosis can be produced by several pathologies and the drug use. Glucocorticoids are a group of grugs widely used in medical practice due to their unquestionable utility. Glucocor- ticoid-induced osteoporosis (GIOP) is a significant public health issue. Although the pathogenesis of glucocorticoid mediated

Elías Forero Illera

193

Fotodermatitis de contacto por dexketoprofeno. Descripción de dos casos  

Microsoft Academic Search

Dexketoprofen is the active isomer of ketoprofen and likewise belongs to the group of non-steoidal anti-inflammatory drugs (NSAIDs) derived from propionic acid. We have recently studied, using patch and photopatch tests, two women with a characteristic clinical picture of contact photo-dermatitis who had used topical dexketoprofen (Enangel®) in the days before onset of the rash. In both cases we used

R. González-Pérez; I. Trébol; I. García-Ríos; M. A. Arregui; R. Soloeta-Arechavala

2006-01-01

194

Perforación en bóveda palatina por consumo de cocaína  

Microsoft Academic Search

Worldwide, the use of cocaine has an increased over the years, various secondary effects have been described. Here we present a 48 years old female with a 2-month evolution bucconasal ulcer in the hard palate induced by cocaine usage accompanied by swallow and phonation dysfunctions. Ethiopathogenesis, differential diagnoses and treatment are discussed.

Miguel Padilla Rosas; Cecilia Irene; Jimenez Santos; Claudia Lorena; García González

195

DISTENSION ABDOMINAL Y EDEMAS POR QUISTE DEL CORDON ESPERMATICO  

Microsoft Academic Search

Resumen La distensión abdominal es un síntoma común, siendo en general la presentación inicial de enfer- medades sistémicas o desórdenes gastrointestinales. Otras causas son infrecuentes. Los quistes del cordón espermático son poco frecuentes, pero aún más su ubicación intraabdominal, su tamaño habitual es insuficiente para producir distensión. El paciente presentado en este caso es un varón con criptorquidia bilateral admitido

GUILLERMO A. KELLER; CECILIA SESSA

196

Control de las Enfermedades Transportadas por el Aire  

NSDL National Science Digital Library

The air that you breathe indoors may be dangerous to your health. How can we make indoor environments safer? Apply aerobiological engineering principles to buildings to control the bioaerosols in our indoor environments. Retrofit old buildings or specifically design new buildings to control airborne microbes. Develop regulatory standards for indoor environments. Become educated about sources and transmission routes of airborne pathogens.

Wladyslaw Kowalski (Pennsylvania State UniversityâÂÂs Indoor Environment Center;)

2009-08-19

197

Eventos centinela y la notificación por el personal de enfermería  

Microsoft Academic Search

Introduction: International reports show that only 5 % of adversity effects are notified; which is due to inherent factors related to health staff, such as being afraid to be punished, being exposed to the professional praxis, unknowing the notification program and the lack of reinformation after the first notification, among others. Objective: To identify among nursing staff their knowledge of

Hernán Juárez-Pérez; Carlos Durán-Muñoz

198

Un brote de enfermedad causado por los alimentos que se ...  

Center for Food Safety and Applied Nutrition (CFSAN)

Text Version... Mary está disfrutando un almuerzo con su El pan estaba delicioso pero ella no podía imaginar restaurante se quejó de estar enfermos con papá. ... More results from www.fda.gov/downloads/food/guidanceregulation

199

¿POR QUÉ MIRIAM SÍ VA A LA ESCUELA?  

Microsoft Academic Search

This article explores the meaning young people in situations of economic marginalization attach to staying in school. The study aims at defining the processes and actors—in the family, school, or community—who participate in successful scholastic trajectories in the most difficult contexts; it also attempts to determine if these actors have a relation with the theory of resilience. A presentation is

JUAN CARLOS; SILAS CASILLAS

2008-01-01

200

Diagnóstico por tomografía axial computarizada de sinusitis esfenoidal  

Microsoft Academic Search

Sphenoidal sinusitis is an uncommon pathology potencially dange condition, what we can find in young population. Clinically it is very dif- ficult the diagnosis because of its nonspecific symptoms, but cranial computer tomography proves the diagnosis. The most cases were trated with antbiotics and recovered completely. We present a young-man with isolated sphenoidal sinusitis who were managed in our medical

S. Cinza Sanjurjo; A. Cabarcos Ortiz de Barrón; D. Rey Aldana; V. Lorenzo Zúñiga

2006-01-01

201

EDICAS POR MEDIO DE DETECTORES DE MICROCINTAS DE SILICIO  

Microsoft Academic Search

This article describes the procedure followed in order to obtain digital images with medi- cal purposes using a silicon microstrip detector. It is shown the calibration procedure and obtention of the parameters that optimize the performance of the RX64 readout circuit. It is also described the analysis procedure applied to a group of images obtained from a dynamics angyography phantom

J. D. Soler; L. Ramello; C. Avila; D. Bollini; A. E. Cabal; C. Ceballos; W. Dabrowski; M. Gambaccini; P. Giubellino; P. Grybos; J. Lopez; A. Marzari-Chiesa; L. M. Montano; F. Prino; J. C. Sanabria; A. Sarnelli; K. Swientek; A. Taibi; A. Tuffanelli; P. Van Espen; P. Wiacek

202

¿Por dónde empezar?: la pregunta en investigación cualitativa  

Microsoft Academic Search

A qualitative research question reflects the researcher’s paradigm and should be consistent with the proposed research method. A research question implies engaging in a process that defines the research area, subject, question, and place of the study. Because this process is interactive and changes during the course of the investigation, the beginnings are necessarily provisional. The qualitative research question is

Carmen de la Cuesta-Benjumea

2008-01-01

203

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

204

Identificación de péptidos miméticos al epítopo reconocido por el anticuerpo monoclonal específico por el EGF, CB-EGF1  

Microsoft Academic Search

Identification of peptide mimics of the epitope recognized by CB-EGF1, a monoclonal antibody EGF specific. As part of an integral structure and function study, we characterized the natural epitope on the EGF recognized by the CB-EGF1 monoclonal antibody, by using peptides displayed on the coat protein of filamentous bacteriophages. Data analyzed demonstrated that the CB-EGF1 monoclonal antibody recognizes a conformational

Yaquelin Puchades; Ariana G Ojalvo; Yanet García; Glay Chinea; Haydée Gerónimo; Nelson S Vispo

205

RESISTENCIA A LA CORROSIÓN DE ACEROS INOXIDABLES AUSTENITICOS CON ALTO CONTENIDO DE NITROGENO RECUBIERTOS CON HIDROXIAPATITA POR ASPERSIÓN POR PLASMA  

Microsoft Academic Search

In this study was evaluated the corrosion resistance of nitrogen austenitic stainless steel, ASTM-F1586 and Böhler-P558, plasma-sprayed hydroxyapatite coating. The layers were characterized by SEM and DRX. The corrosion resistance was evaluated using tests of potential open circuit and cyclical polarization in Ringer solution to 37°C. The layers present lamelar morphology and pores. In the electrochemical tests was observed that

CLAUDIA PATRICIA OSSA; ANDRÉ TSCHIPTSCHIN

206

Potencial de Seqüestro de Carbono Atmosférico entre Diferentes Cultivares de Milho (Zea mays L.) sob Condiç o de Déficit Hídrico  

Technology Transfer Automated Retrieval System (TEKTRAN)

There is a question concerning the role of agricultural practices on carbon sequestration enhancement. By producing biomass with agricultural crops and adding this residue to soil, it should act on the mitigation process of the greenhouse effect, especially CO2. The objectives of this study were to ...

207

ANÁLISE FILOGENÉTICA DE DUAS ESPÉCIES SIMPÁTRICAS DE TUCUNARÉ (Cichla, PERCIFORMES), COM REGISTRO DE HIBRIDIZAÇÃO EM DIFERENTES PONTOS DA BACIA AMAZÔNICA  

Microsoft Academic Search

Among the species of Amazonian fishes of recognized economic importance, we may highlight Cichla (tucunarés) species, which is the biggest cichlid from South America. This genus is described as having at least 15 different forms, but recent authors accept only five valid species: Cichla temensis, C. monoculus, C. orinocensis, C. ocellaris and C. intermedia. Recent chromosomal analysis in tucunarés from

Fernanda Andrade; Horacio Schneider; Izeni Farias; Eliana Feldberg; Iracilda Sampaio

208

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

209

EFECTO DE DIFERENTES PATRONES DE CÍTRICAS E INTERVALOS DE RIEGO SOBRE LA CALIDAD Y PRODUCCIÓN DE LA NARANJA 'VALENCIA  

Microsoft Academic Search

Effect of different rootstocks and irrigation intervals on quality and yield of 'Valencia' orange The effect of the irrigation frequency (5, 10 and 15 days) and rootstock (Cleopatra mandarin, Volkamer lemon and Carrizo Citrange) on yield and fruit quality of 'Valencia' orange was evaluated under a split plot design. The experiment was conducted in a sandy loam soil in Maracay,

Manuel Wagner; Gastón Laborem; Carlos Marín; Gerardo Medina; Luis Rangel

210

TEXTURA DAS ROCHAS, SUAS DEFORMABILIDADES E RESISTÊNCIAS, PARA DIFERENTES SOLICITAÇÕES ROCK TEXTURE, DEFORMABILITIY AND STRENGTH, UNDER DIFFERENT TYPES OF LOADINGS  

Microsoft Academic Search

The work presented in this article intended to verify if the characteristics of deformability and resistance of rocks are dependent in some way on its texture, and size, shape and spatial distribution of the minerals that constitute most rocks. For that purpose, specimens of eight distinct types of rocks (igneous, sedimentary and metamorphic) with distinct granular textures, were submitted to

Dinis da Gama

211

¡Helados!  

NSDL National Science Digital Library

En esta tira cómica, Mateo y Cientina emplean su conocimiento de la química y las medidas para esta actividad deliciosa - ¡hacer helado! En hacer la actividad los participantes experimentarán las causas y efectos por cambiar las medidas de los ingredientes para ver los diferentes resultados en su helado. También aprenderán lo importante que es seguir instrucciones para que todo quede sabroso.

Science, Lawrence H.

2009-01-01

212

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

213

Determinacao de hafnio e zirconio em materiais geologicos por analise por ativacao com neutrons. (Determination of hafnium and zirconium in geological materials by neutron activation analysis).  

National Technical Information Service (NTIS)

In this paper, neutron activation analysis was developed for determining hafnium and zirconium in geological materials. The USGS geological standard rocks GSP-1 (granodiorite) and W-1 (di abase). The Brazilian geological standards GB-1 (granite) and BB-1 ...

J. P. Lins

1992-01-01

214

HPLC DETERMINATION OF ORGANIC ACIDS IN MOROCCAN APRICOT DETERMINACIÓN POR HPLC DE ÁCIDOS ORGÁNICOS EN ALBARICOQUE MARROQUÍ DETERMINACIÓN POR HPLC DE ÁCIDOS ORGÁNICOS EN ALBARICOQUE MARROQUÍ  

Microsoft Academic Search

Organic acids content of Moroccan apricot (Prunus armeniaca L.) var. Canino were separated and measured by HPLC. Good chromatograms were obtained by coupling three RP18 columns of 25 cm of length. The mobile phase was adjusted at an optimum pH of 2.15. The absorbance at 210 nm, measured with a diode array UV detector, was used for quantification. The method

A. Hasib; A. Jaouad; M. Mahrouz; M. Khouili

2002-01-01

215

Kinetika koalestsentsii ansamblya vakansionnykh por s uchetom mikroskopicheskikh protsessov, proiskhodyashchikh na poverkhnostyakh por. (Coalescence kinetics of vacancy void ensemble with accounting for microscopical processes on void surfaces).  

National Technical Information Service (NTIS)

This paper deals with the kinetics of Ostwald ripening of voids, taking into account the microscopic processes, which occur on the surfaces of voids and control the absorption and evaporation of point defects. The kinetics of Ostwald ripening of voids is ...

A. I. Ryazanov D. G. Sherstennikov

1988-01-01

216

Verification and validation interim report for portable 1,000 CFM exhauster skids POR-007/Skid E and POR-008/Skid F  

SciTech Connect

This Verification and Validation (V/V) interim report summarizes to date the results of the V/V tasks performed in each of the following life cycle phases: concept, requirements, design, implementation, test, installation and checkout, and operation and maintenance. At the end of the installation and checkout phase, the V/V final report will be issued. This interim report contains or references the following for each phase: Description of V/V tasks performed; Summary of task results; Summary of anomalies and resolution; Assessment of system quality; Recommendations.

Nelson, O.D.

1998-07-25

217

Cuantificacion de radon en habitaciones de diferente construccion, localizadas en la provincia de Pichincha. (Radon quantification in dwellings of different construction located in Pichincha Province).  

National Technical Information Service (NTIS)

The desintegration of uranium-238 yields radon-222 present in most dwellings and buildings. Radon-222 gets into them, accumulatively, through floors and walls, domestic fuel-gas and drinking water pipes. Upon inhalation radon is cancer's causes, death-rat...

M. M. Ayala

1992-01-01

218

Coexistencia de los diferentes discursos patriarcales y efectos desarrollados en la novela de escritoras de la restauracion: La moda como liberacion de la mujer  

Microsoft Academic Search

The role of women in Spanish society, at the end of the nineteenth century and at the beginning of the twentieth century, was shaped by interactions between the legal system, the Catholic Church, customs, and the politics of marriage. The inflexibility of these aforementioned institutions catalyzed the feminist movement in Spain. Specifically, some women writers used the unyielding nature of

Maria Julia Bello-Bravo

2008-01-01

219

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

220

DIFERENTES AMBIENTES E OSMOCOTE NA PRODUÇÃO DE MUDAS DE TAMARINDEIRO ( Tamarindus indica ) Different ambient and Osmocote for growth of tamarind (Tamarindus indica) fruits seedlings  

Microsoft Academic Search

-3 de substrato. Avaliaram-se a altura da muda (cm), comprimento da raiz (cm), número de folhas\\/ planta, matéria seca da parte aérea (g), matéria seca da raiz (g) e a matéria seca total (g). Os resultados demonstraram que o Osmocote (15-10-10) pode ser recomendado para a formação de mudas de tamarindo, em doses de até 6,0 kg.m -3 . O

Vander Mendonça; Nildo Antônio; Arruda de Abreu; Henrique Antunes de Souza; Glauco Antônio Teixeira; José Darlan Ramos

221

Síntese de proteína microbiana e concentrações de uréia em vacas alimentadas com dietas à base de palma forrageira e diferentes volumosos  

Microsoft Academic Search

Five Holstein cows were allotted to a 5 × 5 Latin square design with the objective of evaluating the microbial protein production, using the total excretion of purine derivatives (PD), obtained from spot urine collection, plasma and milk urea and nitrogen (N)-urea. The five treatments contained different forage sources: sugar cane bagasse (CB), tifton hay (TH), elephant grass hay (EH),

Marcelo de Andrade Ferreira; Renata Rodrigues da Silva; Alenice Ozino Ramos; Antonia Sherlânea Chaves Véras; Airon Aparecido Silva de Melo; Amanda Vasconcelos Guimarães

2009-01-01

222

Produção de Proteína Microbiana, Concentração Plasmática de Uréia e Excreções de Uréia em Novilhos Alimentados com Diferentes Níveis de Uréia ou Casca de Algodão1  

Microsoft Academic Search

Two trials were conducted to study the effects of different levels of urea or cottonseed hulls on yield of microbial protein, estimated by the urinary excretion of purine derivatives, concentration of plasma urea, and excretion of urea in steers. In the first trial, 24 crossbred castrated steers averaging 300 kg of initial live weight (LW) were uniformly assigned to four

Karla Alves Magalhães; Sebastião de Campos; Valadares Filho; Rilene Ferreira Diniz Valadares; Mônica Lopes Paixão; Douglas dos Santos Pina; Pedro Veiga Rodrigues Paulino; Mário Luiz Chizzotti; Marcos Inácio Marcondes; Alexandre Magno Araújo; Marlos Oliveira Porto

223

MICRONUTRIENTS ACCUMULA TION AT DIFFERENT MAIZE DEVELOPMENT STAGES1 Acúmulo de micronutrientes em híbridos de milho em diferentes estádios de desenvolvimento  

Microsoft Academic Search

The study of micronutrients accumulation as a function of plant development stage is of fundamental importance to subsidize strategies for fertilizer application and minimum amount to maintain soil fertility. This study evaluated micronutrient accumulation in two maize cultivars at different development stages. The experimental design was randomized blocks with four replications in split-plots, with two maize hybrids as the plots

Renzo Garcia Von Pinho; José Luiz de Andrade; Rezende Pereira

224

Perfil de atividade física em escolares da rede pública de diferentes estados nutricionais Physical activity profile among children of public school of different nutritional status  

Microsoft Academic Search

JENOVESI, J.F.; BRACCO, M.M.; COLUGNATI, F.A.B.; TADDEI, J.A.A.C. Physical activity profile among children of public school of different nutritional status. R. bras. Ci. e Mov. 2003; 11(4): 57-62. The aim of study was to compare physical activity levels among school children of different nutritional status. The sample was composed of 2519 children of both sexes (male 50,7%; female 49,3%), of

Jefferson Ferreira Jenovesi; Mario Maia Bracco; Fernando Antonio; Basile Colugnati

225

Relación de la resistencia a la insulina con diferentes medidas antropométricas y factores de riesgo cardiovascular en una población no diabética  

Microsoft Academic Search

Background and ObjectiveInsulin resistance (IR) has been directly related to obesity, particularly central obesity, and to other cardiovascular risk factors (CVRFs). Direct IR quantification is difficult in clinical practice, and indirect methods such as HOMA (homeostasis model assessment) have therefore been developed. The aim of this study was to assess the association of IR, as measured by HOMA, with different

Marta Simarro Rueda; Julio A. Carbayo Herencia; Javier Massó Orozco; Luis Miguel Artigao Rodenas; Lucinio Carrión Valero; Juan Antonio Divisón Garrote; Pilar Torres Moreno; Juan López Abril; Abel J. Herrero Hernández; Francisca Molina Escribano

226

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

227

RESPUESTA DE HÍBRIDOS DE MAÍZ A LA APLICACIÓN DE POTASIO EN DIFERENTES DENSIDADES DE POBLACIÓN RESPONSE OF MAIZE HYBRIDS TO POTASSIUM APPLICATION AT DIFFERENT POPULATION DENSITIES  

Microsoft Academic Search

Maize producers in México confront a permanent challenge of getting a greater production at a lower cost. To increase the bene- fit\\/cost ratio, requires an optimal combination of factors involved in maize production. Some of these factors are variety, population den- sity, disease resistance and mineral nutrition. The importance of po- tassium in crop production is well known; however, studies

José Blas; Maya Lozano; José Luis Ramírez Díaz

2002-01-01

228

Response of osteoblastic cells to titanium submitted to three different surface treatments Resposta de células osteoblásticas ao titânio submetido a três diferentes tratamentos de superfície  

Microsoft Academic Search

In the complex process of bone formation at the implant-tissue interface, surface properties are rel- evant factors modulating osteoblastic function. In this study, commercially pure titanium (cp Ti) samples were prepared with different surface characteristics using chemical attack with a sulfuric acid\\/hydrochloric acid based solution (treatment A); chemical attack plus anodic oxidation using phosphoric acid (treatment B); and chemical attack

Adriana Soares Santiago; Euler Araújo dos Santos; Márcia Soares Sader; Marcelo Felippe Santiago; Gloria de Almeida Soares

229

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

230

ECOLOGY, BEHAVIOR AND BIONOMICS Térmitas Construtores de Ninhos Conspícuos em Duas Áreas de Mata Atlântica com Diferentes Níveis de Perturbação Antrópica  

Microsoft Academic Search

The effects of selective logging on termite assemblages that build conspicuous nests were studied in two areas of semideciduous Atlantic Forest, located in the Reserva Biológica Guaribas, Northeastern Brazil. The two study areas went through selective logging until 1985 (A17) and 1972 (A30). In 2002, termite nests were studied in two plots of 1 ha (100 x 100 m), being

ALEXANDRE VASCONCELLOS; ADELMAR G. BANDEIRA; WALTÉCIO O. ALMEIDA; FLÁVIA M. S. MOURA

231

Fotografias Aeras Verticais 35 mm para Mapear Povoamentos de Bracatinga em Diferentes Idades (35 mm Vertical Aerial Photographs for Mapping Stands of Bracatinga in Different Age Classes).  

National Technical Information Service (NTIS)

The value of 35 mm vertical aerial photographs used to identify and map Mimosa scabrella Benth (bracatinga) in different age classes is shown. It was possible to differentiate three age classes of bracatinga using the elements of image interpretation. Com...

A. A. Disperati N. C. Rosot J. Robertodossantos

1986-01-01

232

Efecto de la luz en ciruela mexicana manejada en diferentes condiciones de almacenamiento Effect of light on Mexican plum stored under different storage conditions  

Microsoft Academic Search

The effect of light on ripening of Mexican plums (Spondias purpurea cv. Lutea) that were held refrigerated inside sealed containers (SC) was evaluated. Plums were stored at 16°C under normal atmosphere or sealed containers, and exposed to cycles of 12 h light\\/12 h no light (L\\/NL), 24 h light (L) and 24 h no light (NL) respectively. Fruit stored in air and 24 h no

E. Montalvo-González; H. S. García; M. Mata-Montes de Oca; B. Tovar-Gómez

2011-01-01

233

Estudo comparativo de duas diferentes modalidades de analgesia controlada pelo paciente após cirurgia cardíaca Comparasion study of two different patient- controlled anesthesia regiments after heart surgery  

Microsoft Academic Search

Introduction: Acute and severe pain is frequent in patients who undergo heart surgery and patient controlled analgesia (PCA) can be used to manage postoperative pain. Objective: To compare analgesia using PCA without continous infusion with PCA plus a continuous infusion of morphine on postoperative period of heart surgery and to assess pain scores, morphine consumption, number of demand, patient satisfaction

Fabiane Almeida MOTA; João Fernando MARCOLAN; Mara Helena; Corso PEREIRA; Adriano Márcio de Melo MILANEZ; Luis Alberto; Oliveira DALLAN; Solange DICCINI

2010-01-01

234

Aplicação da técnica de remoção do contínuo para a discriminação espectral de diferentes dosagens de Nitrogênio aplicadas ao trigo ( Triticum aestivum, L. - IAC370)  

Microsoft Academic Search

The continuum removal method has been explored to evaluate the spectral characterization of winter wheat exposed to three different amount of nitrogen (N0, N120 and N120 Kg ha -1). The continuum removal consist in normalize absorption bands. Three absorption bands on visible and near infrared regions centered on 665, 983 and 1205 nm were studied in terms of band depth,

Fábio Marcelo Breunig

235

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

236

Morbimortalidad por CIUR. Estudio del año 2002 en el Hospital Docente Ginecobstétrico América Arias  

Microsoft Academic Search

A retrospective, and descriptive study of 154 mothers who had children with Intrauterine Growth Retardation (IUGR) at birth. The study was conducted at the America Arias Gynaecology and Obstetric Teaching Hospital in 2002, It was aimed at identifying the mortality and morbidity in our cases. The continual delivery registries, as well as the medical history of mothers and neonates, were

A. Laffita; J. M. Ariosa

2005-01-01

237

CRISIS FINANCIERA INTERNACIONAL Lo que hemos aprendido y lo que nos queda por aprender  

Microsoft Academic Search

Desde aquel ya lejano, y para mí infausto, día de verano del año 2007 - cuya mañana me cogió en Palm Beach, Florida, en una piscina de hotel leyendo el New York Times mientras tomaba el sol - hasta hoy, he venido siguiendo, con insospechado interés, lo que pasó y lo que está pasando en la economía de los Estados

José Jurado Gil

2009-01-01

238

Predição de Aspectos da Emoção Constatada em Música por Descritores Cognitivos Musicais  

Microsoft Academic Search

Resumo. O estudo de cognição musical normalmente se utiliza de modelos computacionais para calcular aspectos específicos da percepção e interpretação da informação musical. Estes modelos são chamados na literatura de descritores acústicos quando calculam características musicais, na forma de series temporais, diretamente de arquivos de áudio. Chamamos de descritores cognitivos musicais (DCM) aos descritores acústicos que calculam aspectos contextuais da

Jose Fornari

239

Dinamica de Atitude Para Satelites Estabilizados Por Rotacao (Attitude Dynamics for Satellites Stabilized Through Spin).  

National Technical Information Service (NTIS)

A simplified dynamic modelling for the attitude motion of spin stabilized artificial satellites is proposed. Torques due to induced magnetic fields on the satellite, eddy currents, and gravity gradient are considered. The corresponding Euler equations are...

H. K. Kuga W. C. C. Silva U. T. V. Guedes

1987-01-01

240

Atención de los niños hecha por SIATE en Cascavel en 2004  

Microsoft Academic Search

Nowadays accidents involving children are being a relevant cause of morbimortality. Physical injuries are responsible for 98 % of death in developing countries. The study had as aim identifying the kinds of accidents involving zero to twelve-year-old children assisted by Integrated Study of Trauma and Emergency Reception (SIATE) from Cascavel. The descriptive study was developed through a survey of SIATE's

Márcio Briccius; Neide Tiemi Murofuse

241

Músico, Exilio y Memoria — La Lucha Por Los Restos De Manuel De Falla  

Microsoft Academic Search

En vísperas de la guerra civil, España era uno de los centros intelectuales más efervescentes de Europa. A partir de 1898, tras perder los últimos restos del Imperio en el Nuevo Mundo (Cuba y Puerto Rico), y particularmente en los años de la Segunda República (1931–1936), se llevaron a cabo apasionantes debates sobre cuestiones de identidad nacional y el sendero

Raanan Rein

1996-01-01

242

Análise da contaminação dos sistemas hídricos por agrotóxicos numa pequena comunidade rural do Sudeste do Brasil  

Microsoft Academic Search

Recent advances in analytical techniques allow identifying pesticide pollution in water systems. In small rural communities, the negative effects of pesticide pollution can be aggravated by the lack of infrastructure and adverse socioeconom- ic conditions. This study investigated pesticide pollution in potential water supply sources in a tomato growing area in Paty do Alferes, Rio de Janeiro State, Brazil. The

Marcelo Motta Veiga; Dalton Marcondes Silva; Lilian Bechara Elabras Veiga; Mauro Velho de Castro Faria

2006-01-01

243

Incidência de suicídios e uso de agrotóxicos por tra- balhadores rurais em Luz (MG), Brasil  

Microsoft Academic Search

The article presents the incidence of suicides and attended cases of poisoning in the micro-region of Luz, Minas Gerais, and their possible relationship with pesticides. A descriptive study was held involving 50 local residents, who were asked to answer a questionnaire. Acetylcholinesterase, gamma-glutamyl- transferase (GGT), Serum glutamic oxaloacetic transaminase(SGOT), and Serum glutamic pyruvic transaminase(SGPT) were measured, and suicides between the

Tufi Neder Meyer; Ione Lamounier Camargos; Juscélio Clemente de Abreu

244

A contaminação por agrotóxicos e os Equipamentos de Proteção Individual (EPIs)  

Microsoft Academic Search

This study has analyzed the efficiency and adequacy of Personal Protective Equipment (PPE) used when mixing and spraying pesticides in Brazilian and French farming. Analysis was based on two case studies: The first one, concerning a tomato crop located in a small rural community in the Southeast of Brazil; the second, a vineyard in France. The findings showed that PPE

Luiz Antonio Meirelles; Alain Garrigou; Isabelle Baldi

245

Dissolução de tecido pulpar bovino por duas substâncias químicas do preparo do canal radicular  

Microsoft Academic Search

O presente trabalho avaliou a dissolução de polpas bovinas pelo gel de clorexidina a 2,0% e pela solução de hipoclorito de sódio - em diferen- tes concentrações e valores de pH - so bd uas tem- peraturas. Os fragmentos de tecido pulpar foram imersos em clorexidina a 2,0%, veiculado em gel de natrosol, e hipoclorito de sódio a 5,0%; 2,5%;

EVANDRO LUIZ SIQUEIRA; MARCELO DO SS ANTOS; ANTONIO CARLOS BOMBANA

246

Grafite & pichação: por uma nova epistemologia da cidade e da arte  

Microsoft Academic Search

Graffiti: a huge channel of communication with no fiber optic or electric connection, but a force directly linked to the city, the public and the here and now. It resides in the city and in the public space and has neither owner nor guardian. Together with the buildings, random scribbles appear, messages of love, political graffiti and advertising announcements in

Celia Maria Antonacci Ramos

247

Capítulo V LA RESPUESTA DEL HUÉSPED A LA INFECCIÓN POR Nocardia brasiliensis  

Microsoft Academic Search

Nocardia brasiliensis is the most frequently isolated bacterium from human actinomycetoma cases in Mexico. This organism lives as a saprophyte in soil and enters the skin by traumatic inoculation. Host response to this infection is a remarkable inflammatory accumulation of granulocytes around the bacteria. Chronic infection up to seven years in humans is also characterized by multiple microabscesses separated by

Mario Cesar; Salinas Carmona; Nuevo León

248

Sintomas Depressivos e Qualidade de Vida em Indivíduos com Epilepsia por Esclerose Mesial Temporal  

Microsoft Academic Search

RESUMO Introdução: Dificuldades no trabalho, em relacionamentos interpessoais, familiares e sociais, a percepção do estigma, da discriminação dentre outros têm sido associados aos estados depressivos interictais, influen- ciando negativamente a qualidade de vida (QV) das pessoas com epilepsia. A depressão tem alta prevalência (20 a 55%) nas epilepsias, sendo vista como o fator mais importante no julgamento do paciente sobre

Neide Barreira Alonso; Tatiana Indelicato da Silva; Ana Carolina Westphal; Auro Mauro Azevedo

249

Hidratación oral continua o a dosis fraccionadas en niños deshidratados por diarrea aguda  

Microsoft Academic Search

Mota-Hernández F, Gutiérrez-Camacho C, Cabrales-Martínez G, Villa-Contreras S. Oral rehydration in continuous administration or in fractionated doses in dehydrated children with acute diarrhea. Salud Publica Mex 2002;44:21-25. The English version of this paper is available at: http:\\/\\/www.insp.mx\\/salud\\/index.html Abstract Objective. To evaluate the safety and effectiveness of two oral rehydration techniques. Material and Methods. A randomized clinical trial was conducted at

Felipe Mota-Hernández; Claudia Gutiérrez-Camacho; Rosa Georgina Cabrales-Martínez; Sofía Villa-Contreras

2002-01-01

250

Rombencefalitis por Listeria: correlación clínico-radiológica Rhombencephalitis caused by Listeria: clinical-radiological correlation  

Microsoft Academic Search

Rhombencephalitis due to Listeria is a serious and infrequent infection of the brainstem. It principally affects subjects who were previously healthy. It shows itself clinically in two phases: the first with unspecific symptoms, which could last one week, and the second with the appearance of focal neurologic signs at the level of the brainstem. We present the case of a

N. Aymerich; F. Lacruz; J. Gállego; G. Soriano; T. Ayuso; J. A. Villanueva; NOTAS CLÍNICAS

251

SEÑALIZACIÓN CON ORINA Y EXCRECIÓN POR LOBOS EN CAUTIVIDAD: CRITERIOS DE IDENTIFICACIÓN Y DIFERENCIAS SEXUALES  

Microsoft Academic Search

Signalling with urine and excretion by captive wolves: criteria for identification and sexual differences In a study carried out during a year in captivity, with two reproductive pairs of Iberian wolf (Canis lupus signatus Cabrera, 1907), it was observed as the micturitions were made onto conspicuous and high substrates (trees and stones). For raised leg urination (a typical males posture)

I. BARJA; Y F. J. DE MIGUEL

252

OBTENÇÃO DO COMPÓSITO 3Y-TZP\\/SI2N2O POR SINTERIZAÇÃO SEM PRESSÃO  

Microsoft Academic Search

The addition of Si3N4 and SiC in a Y-TZP matrix is very interesting because leads to formation of silicon oxynitride and it increases the mechanical properties, but properties increment is limited by several difficulties which have appeared during processing and heating of these materials. This paper studies the Y-TZP\\/Si2N2O pressureless sintered composite showing the behavior of 20vol%Si3N4-SiC when added in

AUGUSTO XAVIER SANTOS; MOTOZO HAYAKAWA; E JOSÉ CARLOS BRESSIANI; ESCOLA SENAI; MARIO AMATO

253

Controle da Mosca Branca na Cultura de Berinjela Por Três Inseticidas  

Microsoft Academic Search

Control of the white fly in the eggplant crop for three insecticides This research aimed to evaluate the efficacy of the insecticides cyfluthrin 50 CE, thriflumuron 480 SC and chlorpyriphos 450 CE in the control of white fly B. argentifolii in the eggplant in Coimbra Minas Gerais State. The experimental design was realized in randomized blocks with four replications. The

Emerson C. de Barros; Marcelo C. Picanço; Carla do C. Milagres; Ézio M. da Silva; Lessando M. Gontijo

254

Applying Cognitive Linguistics to Teaching the Spanish Prepositions "Por" and "Para"  

ERIC Educational Resources Information Center

L2 prepositions are traditionally taught in a non-explanatory manner by having students learn each use individually. This study examines the effectiveness of an alternative explanatory approach based on cognitive linguistics, which considers the multiple uses of a preposition as related. Consequently, learners can be shown a general schema that…

Lam, Yvonne

2009-01-01

255

Competencias requeridas por los egresados del programa de Medicina según el pensamiento de autoridades y docentes  

Microsoft Academic Search

The gone away one(graduated one) from the university and specifically of the program of medicine of the UCLA, must rely on competitions that they should qualify it to exercise successfully this profession. The present investigationwas realized to know the thought of authorities and teachers in relation with the competitions needed for gone away(graduated) from the Program of Medicine of the

Isabel Cristina; Ramos de Fernández; María Cristina; Fernández UCLA

256

MECANISMO DE INFECCIÓN Y TRANSFORMACIÓN NEOPLÁSICA PRODUCIDO POR VIRUS PAPILOMA HUMANO EN EL EPITELIO CERVICAL  

Microsoft Academic Search

SUMMARY A bibliographical revision of the infection mechanism and neoplastic transformation produced by human papilloma virus of high risk in cervical epithelium is presented. The capside receptor interaction, interna- lization, early genes expression, integration of genoma to the host cell and mechanisms associated to the cell multiplication and neoplastic growth is described.

Angélica Larraín H

2006-01-01

257

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

258

EFEITO DO pH DA SOLUÇÃO NUTRITIVA NA FITOTOXIDEZ CAUSADA POR ÁCIDOS ORGÂNICOS EM ARROZ  

Microsoft Academic Search

The occurrence of anaerobic conditions in hydromorphic soils, associated to the presence of organic matter favors the development of anaerobic microorganisms which produce phytotoxic substances represented mainly by short chain organic acids. The selection of promising rice genotypes adapted to these situations requires cumbersome field evaluations wich can be replaced by simpler hydroponic culture evaluations. The objective of this work

Mauricio Marini Kopp; Viviane Kopp da Luz; Vanessa Neumann Silva; Jefferson Luis Meirelles

259

Monitoramento da contaminação por elementos traço em ostras comercializadas em Recife, Pernambuco, Brasil  

Microsoft Academic Search

Samples of oysters marketed in Recife, Pernambuco, Brazil, were monitored for the concentration of trace elements (Hg, Zn, Fe, Cu, and Mn) for one year (from March 2001 to Feb- ruary 2002). Mercury was the principal contaminant found in oysters and the element posing the greatest public health risk. Mercury levels in oysters reached 551.12µg\\/kg (wet weight). These values suggest

André Dias Cavalcanti

2003-01-01

260

Pacientes en tratamiento por desnutrición en atención primaria, estudio sobre 500 pacientes reales  

Microsoft Academic Search

Objective: The worsening of the nutritional status of certain segments of the population has led to frequent si- tuations of chronic undernourishment even in the he- althy population. There are very few data available on the prevalence and causes of malnutrition in Primary Health Care. The present study attempts to provide me- asurable information, obtained at random from the doc-

A. Soto Moreno; E. Venegas Moreno; M. Santos; Rubio M; León Sanz; P. P. García Luna; Virgen del Rocío

2002-01-01

261

determinado por variáveis ventilatórias e pela resposta do lactato sanguíneo em ciclistas  

Microsoft Academic Search

Comparison between anaerobic threshold determined by ven- tilatory variables and blood lactate response in cyclists Many investigations have shown that the coincidence between the ventilatory thresholds and those thresholds using the lactate response does not happen all of the time, suggesting that there is no relationship between the cause-effect between these phenom- ena. Thus, the present study had as main

Alexandre Hideki Okano; Leandro Ricardo Altimari; Herbert Gustavo Simões; Antonio Carlos de Moraes; Fábio Yuzo Nakamura; Edilson Serpeloni Cyrino; Roberto Carlos Burini

262

Costos secundarios por infecciones nosocomiales en dos unidades pediátricas de cuidados intensivos  

Microsoft Academic Search

Objective. We estimated associated costs to nosocomial infections in two pediatric intensive care units in Mexico City. Material and methods. A transversal study in the neonatal (NICU) and pediatric (PICU) intensive care units, was done. We reviewed use and cost of diagnostic procedu- res, medications, and excess of hospital stay. Results. There were 102 infections, 46 in the NICU and

Susana Navarrete-Navarro; Gerardo Armengol-Sánchez

1999-01-01

263

Religião e uso de drogas por adolescentes Religion and drug use by adolescents  

Microsoft Academic Search

Introduction Many international studies show that religion is an important dimension modulating the use of alcohol and drugs by adolescents. Objectives: to determine which religious variables are associated to frequent or heavy use of alcohol, tobacco and drugs among adolescents in inter- mediate and high schools in Campinas, Brazil. Methods: A cross-sectional study using a self-report anonymous questionnaire was administered

Paulo Dalgalarrondo

264

Principales características de la pandemia por el nuevo virus influenza A (H1N1)  

Microsoft Academic Search

At the end of March 2009, a new influenza virus A (H1N1) of porcine origin was isolated in two children from California presenting flu-like clinical syndrome. This virus was initially disseminated in Mexico and US and then worldwide. Eight weeks later, it had reached 74 countries with almost 30,000 cases and had caused 145 deaths. The virus had also sustained

Josep Vaqué Rafart; Julita Gil Cuesta; María Brotons Agulló

2009-01-01

265

Panorámica actual en la Blefaritis por Demodex Folliculorum Present outlook of Blepharitis by Demodex Folliculorum  

Microsoft Academic Search

A bibliographic review on Blepharitis caused by Demodex Folliculorum was made consulting many papers of different authors allowing us the deepening and the increase of our knowledges on pathogeny, clinical picture, diagnosis and treatment. Its causal agent is an Acarus of hair follicle, a regular parasite causing a chronic eczematous blepharitis with an in- frequent clinical diagnosis. Main objective was

Yaumara Román Pereira; Yohanys Díaz Díaz

266

Quantificação de esforço de pesca através de dados de rastreamento de embarcações por satélite  

Microsoft Academic Search

During the period of closure of the pink-shrimp f ishery in southeastern and southern Brazil, from 01\\/03\\/2008 to 31\\/05\\/2008, 110 vessels were provisio nally licensed to operate at depths of between 100 and 250 meters. All fishing boats transmitted data through the Vessel Monitoring System - VMS during their fishing cruises. Additionally, in ten fishery cruises, fish ing activity was

RODRIGO CLAUDINO DOS SANTOS; CLAUDIA RAMOS ZAGAGLIA; MAICON GILSON BARBOSA; MAURÍCIO BRICHTA

267

PorPhrin Based Compounds for Tumor Imaging and Photodynamic Therapy.  

National Technical Information Service (NTIS)

This invention describes a first report on the synthesis of certain (sup)124I-labelled photosensitizers related to chlorines and bacteriochlorins with long wavelength absorption in the range of 660-800 nm. In preliminary studies, these compounds show a gr...

A. Gryshuk A. Oseroff H. A. Nabi M. Sajjad R. K. Pandey S. Pandev

2006-01-01

268

A new confirmatory Neisseria gonorrhoeae real-time PCR assay targeting the porA pseudogene  

Microsoft Academic Search

The Roche Cobas Amplicor system is widely used for the detection of Neisseria gonorrhoeae but is known to cross react with some commensal Neisseria spp. Therefore, a confirmatory test is required. The most common target for confirmatory tests is the cppB gene of N. gonorrhoeae. However, the cppB gene is also present in other Neisseria spp. and is absent in

D. M. Whiley; P. J. Buda; J. Bayliss; J. Bates; T. P. Sloots

2004-01-01

269

A novel porA-based real-time PCR for detection of meningococcal carriage  

Microsoft Academic Search

Real-time PCR based on the capsule transfer gene (ctrA) is a significant aid in the diagnosis of meningococcal infection but fails to detect a high proportion (60%) of non-groupable strains associated with nasopharyngeal carriage. This study aimed to design a novel real-time (TaqMan) PCR that would detect more strains of meningococci and be suitable for large-scale carriage studies. Primer and

J. Zoe Jordens; John E. Heckels

2005-01-01

270

Alterações no metabolismo da homocisteína induzidas por aguardente de cana-de-açúcar em alcoólatras  

Microsoft Academic Search

Alcoholism is related to malnutrition and low levels of several vitamins that take part in the metabolism of homocystein (HCY). The objective of this study was to analyse the prevalence of hyperhomocysteinaemia in patients with heavy daily intake of sugar-cane liquor. In this study were included 31 hospitalized man for alcoholism treatment. Serum folate (FOL), HCY, vitamin B12 (B12) and

Rogério Nogueira Prioste; Cesar Iracil Casagranda; Christiane Martinez Hungaro; Demerval Antonio Nunes; Éder Aparecido Bueno; Lilian Bordin; Osmar Marchiotto Jr.; Paulo Fernando de Moraes Nicolau; Renê Izaias Lozano; Victor Andriguetti Coronado Antunes; Wilson Takahi Hida; Tânia Leme da Rocha Martinez

2003-01-01

271

La inteligencia competitiva en España: una encuesta sobre su utilización por parte de las empresas exportadoras  

Microsoft Academic Search

This article analyses the results of a survey among Spanish exporters, and the experiences of four organisations implementing a formal competitive intelligence programme. The research confirms that a formal approach to competitive intelligence, rather than informal or discontinuous approaches, gives businesses of all sizes competitive advantage, and justifies the value of its implementation by Spanish exporters. However, competitive intelligence as

Jorge Postigo

2001-01-01

272

TRASTORNO POR ESTRÉS POSTRAUMÁTICO EN PACIENTES CON LESIONES NO INTENCIONALES PRODUCIDAS EN ACCIDENTES DE TRÁNSITO  

Microsoft Academic Search

SUMMARY We have carried out this research because accidents are a serious public health problem in Mexico. They are the third overall mortality cause and the first among young adults. In addition, in our country, the study of posttraumatic stress disorder (PTSD) has not been focused sufficiently on accidents, not to speak of motor vehicles accidents. Among the different types

Ernesto Pérez-Rincón Merlín; Catalina González-Forteza; Luciana Ramos Lira; José Alberto Jiménez Tapia

2007-01-01

273

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

274

Determinação de misturas de sulfametoxazol e trimetoprima por espectroscopia eletrônica multivariada  

Microsoft Academic Search

DETERMINATION OF SULFAMETHOXAZOLE AND TRIMETHOPRIM MIXTURES BY MULTIVARIATE ELECTRONIC SPECTROSCOPY. In this work a multivariate spectroscopic methodology is proposed for quantitative determination of sulfamethoxazole and trimethoprim in pharmaceutical associations. The multivariate model was developed by partial least-squares regression, using twenty synthetic mixtures and the spectral region between 190 and 350 nm. In the validation stage, which involved the analysis of

Gilcélia A. Cordeiro; Patricio Peralta-Zamora; Noemi Nagata; Roberto Pontarollo

2008-01-01

275

El tratamiento de la violencia en el futbol por la prensa deportiva  

Microsoft Academic Search

Journalists are also main players with regard to violence in sports. Many organisms are worried about this issue and have pointed out the need for the mass media to take care of their own behaviour in order not to create a climate of violence. In this report, we exhaustively review those actions carried out by sports journalists that contribute to

JoseBarrero Munoz

276

TÉCNICAS DE BIORRECUPERACIÓN IN SITU EN ACUÍFEROS CONTAMINADOS POR METALES PESADOS  

Microsoft Academic Search

The basis of aquifers and soils bioremediation is the immobilisation, degradation or transformation of toxic substances through the activity of microbes, getting no-toxic or at least less toxic chemical species as final products. Bioremediation processes occur in nature, basically in the vadose zone and in a lesser degree in the saturated zone of aquifers,

LÓPEZ GUTIÉRREZ; GARCÍA MENENDEZ; GRIMA OLMEDO; BALLESTEROS NAVARRO; Bruno José; PÉREZ GAGO

277

El Libro de la Escritura por Pinguino Tinto (The Writing Book, by Inky Penguin).  

ERIC Educational Resources Information Center

|Presented completely in Spanish and intended for elementary level students, this book offers 12 writing ideas and several suggestions on how students can make a book using their writing. Each writing idea is presented with a brief description (addressed to the student), several examples of student writing, and a blank page on which to write.…

Padgett, Ron

278

Estresores académicos percibidos por estudiantes universitarios de ciencias de la salud  

Microsoft Academic Search

This study aimed to identify those situations within the academic context that are perceived as stress generators in a sample of university students of Health Sciences and the amount of their impact. We also analyzed the differences in the academic stressors perceived based on the variables of career and academic year. These were measured with the Academic Stress Questionnaire, which

R. González Cabanach; R. Fernández Cervantes; L. González Doniz; C. Freire Rodríguez

2010-01-01

279

Diferencias por género en el consumo de alcohol en la Ciudad de México  

Microsoft Academic Search

Objective. The objectives of the present study were: 1) To corroborate the increase in alcohol consumption in the fe- male population registered by results from the National Surveys on Addictions (ENA), 1988 and 1993; and 2) to de- termine affected age groups, and obtain basic information on age of onset, amount consumed per event and drunken- ness frequency in the

Jorge Javier Caraveo-Anduaga; Eduardo Colmenares-Bermúdez; Gabriela Josefina Saldívar-Hernández

1999-01-01

280

Contaminación del Aire Atmosférico por Material Particulado en una Ciudad Intermedia: El Caso de Chillán (Chile)  

Microsoft Academic Search

Through an analysis of the urban contamination of the city of Chillán in Chile, it is demonstrated that the increase in atmospheric pollution during autumn and winter in the city of Chillán must be considered as a problem of anthropogenic origin. This is explained mainly due to the massive use of wood for residential heating in urban areas of the

José E. Celis; José R. Morales; Claudio A. Zaror; Omar F. Carvacho

2007-01-01

281

Impacto Económico en la Salud por Contaminación del Aire en Lima Metropolitana  

Microsoft Academic Search

I. Objetivos y Justificación del Proyecto: La contaminación ambiental es un problema que se ha venido agravando en las ?ltimas décadas en el Perú, sin embargo, en la práctica es poco lo que se ha hecho para reducirla a niveles aceptables o permitidos. A principios de la presente década se han emitido ciertas normas legales que buscan regular los niveles

Juan José Miranda

282

Padrões de comportamento de busca e uso de informação por pesquisadores de biologia  

Microsoft Academic Search

The information seeking and use behavior of Molecular Biology and Biotechnology researchers has been analyzed based on David Ellis´ model, in order to verify how scientific information published in digital media affects this behavior. A qualitative research approach was used and data was collected by means of an interview guide with a set of

Isabel Merlo Crespo; Sônia Elisa Caregnato

283

Pasando por comadrona, midwife y médico: el itinerario terapéutico de una embarazada  

Microsoft Academic Search

In this article, I discuss, according to the theoretical-analytical framework of Menendez (1994), how women and their midwives fo- llow a plural therapeutical itinerary during pregnancy and labor in the region of Antigua, Guatemala. I look foward to present and analyze an example of a delivery that happened during my research, first, as

Soraya Fleischer

2006-01-01

284

RESOLUCION DE FLUJOS POTENCIALES COMPRESIBLES NO-ESTACIONARIOS POR EL METODO DE LOS ELEMENTOS FINITOS  

Microsoft Academic Search

SUMMARY In this work inviscid irrotational flows around aerodynamic profiles which experiment rigid motions are studied. To avoid the use of deformable grids the fuli potential equation is transformed to a non-inertial frame of reference where the domain of integration is fixed. The problem is discretized in this frame of reference and the resulting system of equations is resolved via

Santa Fe-Argentina

285

Fermentação da proteína de seis alimentos por microrganismos ruminais, incubados puros ou com monensina ou rumensin®  

Microsoft Academic Search

RESUMO - Avaliaram-se os efeitos da fermentação in vitro de seis alimentos: fubá de milho (FM), farelo de soja (FS), farelo de trigo (FT), sorgo (SO), glúten de milho (GM) e uréia (UR), incubados puros ou com o antibiótico monensina, esse na forma pur a para análise (Monensina) ou comercial (Rumensin®). O experimento constituiu-se de 18 unidades experimentais (três alimentos

Natália Guarino Souza Barbosa; Rogério de Paula Lana; Antônio Bento Mâncio; Arnaldo Chaer Borges; Cesar de Queiroz; Juliana Silva Oliveira

2001-01-01

286

DESENVOLVIMENTO DE UM AÇO INOXIDÁVEL ENDURECÍVEL POR PRECIPITAÇÃO PARA MOLDES DE PLÁSTICO  

Microsoft Academic Search

The thermoplastic productive chain, usually known as plastics, have experimented intense growth. In the manufacture of goods, the use of dies and tools is essential to obtain the desired quality and productivity. The present work reports the development of a new steel for dies, called VP80, specifically to applications in processes which must bear high corrosive conditions. Plastics such as

Rafael Agnelli Mesquita; Celso Antonio Barbosa

287

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

288

Master equipment list 500 CFM portable exhauster POR-005 skid C  

SciTech Connect

The Master Equipment List (MEL) lists all the major components of the 500 cfm exhauster PORO5. The purpose of this Master Equipment List is to provide basic information and references to other documents for the listed components.

KRISKOVICH, J.R.

1999-07-08

289

Un caso de pseudomiasis por larvas de Hermetia illucens (Diptera: Stratiomyidae) en un bovino  

Microsoft Academic Search

SUMMARY. A case of bovine pseudomyiasis caused by Her- metia illucens larvae (Diptera: Stratiomyidae). Introduction. Hermetia illucens is a dipterous which can produce gastroenteric pseudomyasis in humans and domestic animals. The larvae develop in a wide range of animal and vegetable decaying materials and can be accidentally ingested by

Pablo Manrique-Saide; Roger I. Rodríguez-Vivas; Manuel Quiñones Rodríguez

290

Un índice de carencias en la niñez. Una aproximación por Dpartamentos para Colombia  

Microsoft Academic Search

RESUMEN En este trabajo se construye un indicador sintético, denominado Índice de Carencias para la Niñez Colombiana (ICNC). El ICNC resume el acceso a un conjunto de bienes y servicios en áreas clave para el bienestar y cumplimiento de los derechos del niño. En particular, las carencias que mide el ICNC tienen el objeto de dar a conocer si los

Luis Fernando Aguado Quintero; Ana María Osorio Mejía; Carlos Alberto García González

2009-01-01

291

revisão Secreção da Insulina: Efeito Autócrino da Insulina e Modulação por Ácidos Graxos  

Microsoft Academic Search

219 RESUMO A insulina exerce um papel central na regulação da homeostase da gli- cose e atua de maneira coordenada em eventos celulares que regulam os efeitos metabólicos e de crescimento. A sub-unidade ? do receptor de insulina possui atividade tirosina quinase intrínseca. A autofosforilação do receptor, induzida pela insulina, resulta na fosforilação de substratos protéicos intracelulares, como o substrato-1

Esther P. Haber; Rui Curi; Carla R. O. Carvalho; Angelo R. Carpinelli

2001-01-01

292

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

293

Inducao de cor, por irradiacao, em cristais de topazio. (Radiation induced color in topaz crystals).  

National Technical Information Service (NTIS)

The presence of defects and impurities in the crystal lattice alters the eletric field distribution within the crystal, allowing the electrons to occupy energy levels in the forbbiden band. Ionizing radiation supply the required energy to permit the elect...

A. C. Castagnet H. C. C. Rocca M. E. C. Rostilato

1989-01-01

294

Utilidad del análisis geográfico en el estudio de las muertes por atropellamiento  

Microsoft Academic Search

Objective. The purpose of this paper is to demonstrate the usefulness of geographic analysis to assess the distri- bution of fatal pedestrian run-over injuries. Material and methods. Cross-sectional study of mortality due to pe- destrian run-over injuries was conducted in year 2000. Data were abstracted from death certificates of pedestrians who died due to run-over injuries in Mexico City, during

Martha C. Híjar-Medina

2000-01-01

295

Prevalencia de úlceras por presión en la Comunidad Autónoma de las Islas Baleares  

Microsoft Academic Search

ObjectiveThe absence of reliable information regarding Pressure Ulcers in the Balearic Islands has led to the development of this study. The main objective was to acquire knowledge of the prevalence in hospitals, nursing homes and patients who have received domiciliary care in the public and semi-private services.

Antonia M. Tomàs-Vidal; María Soledad Hernández-Yeste; M. Dolores García-Raya; Reyes Marín-Fernández; Josefina Cardona-Roselló

2011-01-01

296

Tendencias de mortalidad por traumatismos y envenenamientos en adolescentes. México, 1979-1997  

Microsoft Academic Search

Objective. To describe the external causes of death and mortality trends due to injuries and poisoning in Mexican adolescents, from 1979 to 1997. Material and Methods. This is a descriptive study of deaths occurring in Mexico from 1979 to 1997. Data were abstracted, coded, and ente- red in electronic format, by Instituto Nacional de Estadísti- ca, Geografía e Informática (National

Celis A; Gómez-Lomelí Z

2003-01-01

297

Mastite com lesies sistŒmicas por Staphylococus aureus subesp. aureus em coelhos  

Microsoft Academic Search

At a commercial rabbitry which was composed of 1800 New Zealand White rabbits, 30% of the does had presented mastitis and purulent cutaneal lesions. The age of the animals ranged from 10 to 12 months and were at the second parturition. At necropsy, microabscesses were observed in several organs. Bacteriological samples collected from affected animals resulted Staphylococcus aureus subesp. aureus..

Sandra Davi Traverso; Leonardo da Cunha; Teixeira Fernandes; Alexandre Paulino Loretti; Adriana Rhoden; Elsio Wunder Jr; David Driemeier

2003-01-01

298

ANÁLISE COMPARATIVA DOS FICOCOLÓIDES PRODUZIDOS POR ALGAS CARRAGENÓFITAS USADAS INDUSTRIALMENTE E ALGAS CARRAGENÓFITAS PORTUGUESAS  

Microsoft Academic Search

Palavras-chave : macroalgas, ficocolóides, carragenanas, FTIR-ATR, FT-Raman Resumo: As Carragenanas (E-407) constituem um dos principais aditivos usados pela indústria alimentar, como agentes gelificantes, emulsionantes, estabilizantes e espessantes. São ingredientes naturais, usados há várias décadas na área alimentar e são considerados como seguros, tendo obtido a classificação GRAS ( Generally Recognised As Safe ). Neste trabalho foram analisadas a percentagem de

Leonel Pereira; Alan T. Critchley; Ana M. Amado; Paulo J. A. Ribeiro-Claro

299

USO MEDICINAL DE LAS PLANTAS POR LOS OTOMÍES DEL MUNICIPIO DE NICOLÁS FLORES, HIDALGO, MÉXICO  

Microsoft Academic Search

The otomies (the hñähñü) of the Nicolás Flores municipality, Hidalgo, have maintained their knowledge of medicinal plants over generations. Allopathic medicine is limited mostly to prevention of diseases such as poliomyelitis, measles, smallpox, and malaria. It is considered that traditional medicine is more viable for this group of people because of the socioeconomic, cultural and physiographic conditions prevalent in the

A. Sánchez-González; D. Granados-Sánchez

2008-01-01

300

Programação de uma Rede de Sensores para o Corpo Humano por meio de uma Interface Gráfica  

Microsoft Academic Search

Palavras-chave: Redes de Sensores para o Corpo Humano (RSCH), autômatos, multiprogramação, Java Abstract - The inherent characteristics of the Body Sensor Networks (BSN) have a great potential to influence clinical applications for the next decades. It can promote a new paradigm for health monitoring based on wearable systems. The handling of a BSN through a command-line programming interface may not

Talles M. G. A. Barbosa; Iwens G. Sene Jr; F. Rocha; Francisco A. O. Nascimento; S. Carvalho

301

LA TOMOGRAFÍA POR EMISIÓN DE POSITRONES EN PATOLOGÍA QUIRÚRGICA DEL TÓRAX. UNA REVISIÓN  

Microsoft Academic Search

Positron emission tomographycomputed tomography in thoracic surgery. A revision. The introduction of positron emission tomography (PET) into the management of neoplastic disease in thoracic surgery signified an important change from classic algorithms based exclusively on anatomic information obtained through computed tomography (CT). Non-small cell lung cancer and solitary pulmonary nodule were the two diseases in which metabolic PET imaging offered

Jorge Lucena Olavarrieta

302

Caracterizacion de oxidos de hierro por espectroscopia Mossbauer. (Iron oxides characterization by Moessbauer spectroscopy).  

National Technical Information Service (NTIS)

In this work rust development on low carbon wire surface after the conformation process at different temperatures was studied by Moessbauer spectroscopy. The characterization was made by determining the following spectral parameters; (1) Quadrupole splitt...

R. Basurto Sanchez

1993-01-01

303

Infección cutánea esporotricoide por Mycobacterium haemophilum en un paciente con sida  

Microsoft Academic Search

We report a case of primary cutaneous infection by Mycobacterium haemophilum after the bite of an aquarium fish in a severely immunodepressed AIDS patient. Clinical features consisted in nodular and ulcerative lesions that followed a sporotrichoid pattern. Histological study of nodular lesions showed a granulomatous dermatitis with numerous acid-fast bacilli. The mycobacterium was identified 3 months later by genetic hybridization

D. Cameselle; J. Hernández; A. Francès; T. Montenegro; F. Cañas; L. Borrego

2007-01-01

304

Análisis químicos realizados en casos de intoxicaciones por detergentes y limpiadores  

Microsoft Academic Search

Toxicological analysis performed in cases of poi- sonings due to detergents and cleansers. This paper is a review of 21 cases related to poisonings due to cleansers. They are either intentional or of accidental or even criminal origin. They are forensic and clinic cases that have been studied by the Chemistry Department in the Institute of Toxicology (Madrid) from 1998

Almarza E; Martínez MA

2002-01-01

305

¿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

306

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

307

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

308

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

309

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

310

Separacao de tracos de plutonio por cromatografia de troca ionica. (Plutonium removal by ion exchange chromatography).  

National Technical Information Service (NTIS)

A study for plutonium recovery at trace level from uranium solutions by ion exchange technique is presented. Plutonium retention > 99,5% onto strong anionic resin, AG-X8, from nitric acid solutions and a 92% recovery using 0,4 H NO(sub 3) at 60(sup 0) C a...

B. F. Araujo H. T. Matsuda E. I. Carvalho I. C. Araujo

1991-01-01

311

RESIDUOS DE PLAGUICIDAS ORGANOFOSFORADOS EN CABEZUELA DE BRÓCOLI (Brassica oleracea) DETERMINADOS POR CROMATOGRAFÍA DE GASES  

Microsoft Academic Search

Handling of pests in broccoli culture was documented; also, the residues of organophos- phate pesticides were determined in broccoli heads by means of gas chromatography and capillary column. The results indicate that the pests of most incidence in broccoli are Brevicoryne brassicae, Trichoplusia ni, Copitarsia consueta, Artogeia rapae, Tri- aleurodes sp and Bermisia tabaci, as reported by producers, with a

Antonia PÉREZ; Antonio SEGURA; Rosario GARCÍA; Teresa COLINAS; Mario PÉREZ; Antonio VÁZQUEZ; Hermilio NAVARRO

2009-01-01

312

Determinação da pressão de vapor de compostos orgânicos por cromatografia gasosa  

Microsoft Academic Search

SUMMARY DETERMINATION OF VAPOR PRESSURE OF ORGANIC COMPOUNDS BY GAS CHROMATOGRAPHY. The knowledge of the vapor pressures of natural compounds, as well as their critical properties are of great interest for the application of supercritical extraction and supercritical impregnation dye, and necessary for the thermodynamic modeling of equilibria phase. The scarcity of experimental data for these compounds results from their

Fabrício P. Povh; Vera M. Rodrigues; Maria A. A. Meireles; Nanci Pinheiro

2006-01-01

313

Demanda por fundos de investimento RF e DI: um modelo de escolha discreta  

Microsoft Academic Search

Resumo : Neste artigo usamos a teoria da organização industrial para analisar os determinantes da demanda de fundos de investimento de renda fixa e DI no Brasil. Utilizamos um Modelo de Escolha Discreta conhecido como Logit Aninhado, dividindo os fundos de investimento em grupos de acordo com a similaridade das instituições que os administram. Dessa forma, evitamos os problemas relacionados

Thiago Rodrigues; Ricardo Buscariolli Pereira; Juliana Inhasz

2008-01-01

314

AVALIAÇÃO DA PREDAÇÃO DE OVOS EM NINHOS ARTIFICIAIS POR Callithrix spp. EM PARATY-RJ  

Microsoft Academic Search

Several studies have been demonstrating as the habi tat fragmentation and the border effect has been affecting communities of birds, and the predation is viewed as the main cause of the failure of birds nesting in open nests. Due to the difficulty in studies with natural nests, it is us ed artificial nests to quickly evaluate predation impa ct on

JULIANA DO CARMO PADILHA

315

Conductas adoptadas por los profesionales de salud el niño hospitalizado victima de violencia  

Microsoft Academic Search

Exploratory descriptive study, quantitative approach, performed in Hospital da Criança Santo Antônio (HCSA), in Boa Vista - RR. The population was composed of 235 health professionals and the data was collected from june to august 2006. Aiming to acknowledge the type of violence identified by the health professionals in the confirmed or suspected cases of violence on hospitalized children and

Pollyanna Dantas de LimaI

316

Características clínico-microbiológicas de la meningitis por Streptococcus pneumoniae resistente a la penicilina  

Microsoft Academic Search

Objective. To evaluate the susceptibility to antibiotics of Streptococcus pneumoniae isolated from cerebrospinal fluid of children with meningitis. To describe and compare the clinical and microbiological characteristics, treatment and outcome among children infected with strains either suscep- tible or resistant to penicillin and cephalosporin. Material and methods. A total of 38 children with pneumococcal meningitis were prospectively enrolled in the

Demóstenes Gómez-Barreto; Ernesto Calderón-Jaimes; Romeo S. Rodríguez; Luz Elena Espinosa de los Monteros; Maricruz Juárez

1999-01-01

317

Incorporating the viewer's point of regard (POR) in gaze-contingent virtual environments  

NASA Astrophysics Data System (ADS)

Awareness of the viewer's gaze position in a virtual environment can lead to significant savings in scene processing if fine detail information is presented `just in time' only at locations corresponding to the participant's gaze, i.e., in a gaze-contingent manner. This paper describes the evolution of a gaze-contingent video display system, `gcv'. Gcv is a multithreaded, real-time program which displays digital video and simultaneously tracks a subject's eye movements. Treating the eye tracker as an ordinary positional sensor, gcv's architecture shares many similarities with contemporary virtual environment system designs. Performance of the present system is evaluated in terms of (1) eye tracker sampling latency and video transfer rates, and (2) measured eye tracker accuracy and slippage. The programming strategies developed for incorporating the viewer's point-of-regard are independent of proprietary eye tracking equipment and are applicable to general gaze- contingent virtual environment designs.

Duchowski, Andrew T.

1998-04-01

318

Realce de Bordas em Imagens Digitais: Uma Abordagem por Números Fuzzy  

Microsoft Academic Search

O objetivo deste trabalho é apresentar uma nova abordagem para a extração de bordas em imagens em tons de cinza. A abordagem proposta é baseada na teoria de números fuzzy. Os números fuzzy são apropriados para lidar com incertezas, uma vez que quantificam matematica- mente termos lingüísticos do tipo \\

Inês Ap; Gasparotto Boaventura; Adilson Gonzaga

319

A AMOSTRAGEM POR PONTOS NA ESTIMATIVA DE ÁREA BASAL EM POVOAMENTOS DE EUCALYPTUS  

Microsoft Academic Search

SUMMARY - A test of point sampling was made in a Eucalyptus saligna plantation forest with 4 years of age in two regions (flat and sloping terrains) in the state of São Paulo. Basal area values of 648 m2 plots and for point samples (basal area factor 2, 3 and 4 m2\\/ha) established at each plot center, were compared. Point

Hilton Thadeu; Zarate do Couto; Nelson Luiz; Magalhães Bastos; Jeanicolau Simone de Lacerda

320

Prevalencia de infección por Chlamydia trachomatis en prostitutas registradas de la ciudad de Durango, México  

Microsoft Academic Search

Objective. To determine the prevalence of Chlamydia tra- chomatis infection among registered prostitutes of Duran- go City and to establish whether there is a correlation between epidemiological factors and infection. Material and methods. Two-hundred-and-forty-seven registered prosti- tutes of Durango city were studied. Endocervical samples and epidemiological data were obtained. C. trachomatis anti- gen was detected with the Chlamydiazyme test (Abbott

Cosme Alvarado-Esquivel; Alfonso García-Villanueva; Dora Elia Castruita-Limones; Francisco Javier Cardosa-Nevárez; Rosario Ruiz-Astorga

2000-01-01

321

DEPRESIÓN EN NIÑOS CON TRASTORNO POR DÉFICIT DE ATENCIÓN CON HIPERACTIVIDAD  

Microsoft Academic Search

Attention Deficit\\/Hyperactivity Disorder (ADD\\/ADHD) is a neuropsychiatric condition very common in the infantile population. It characterizes for the inattention presence and impulsivity and can be presented with or without hyperactivity in diverse degrees; it affects the academic achievement from each 7 to 10 patients, with a frequent comorbility dysfunctional behavior like: the Oppositional Defiant Disorder, Conduct Disorder, Learning Disabilities, Depression

María Elena; Navarro Calvillo

322

AVANCES EN LA DETERMINACION DE DAÑOS POR FRIO EN FRUTOS DE AGUACATE DE CASCARA VERDE  

Microsoft Academic Search

SUMMARY Avocado fruit of cv Colín V-33 were stored to 50C for a period of 70 days to determine cold injuries, once exposed to the environment was found a 80% of fruit chilling injury. The content of chlorophyl a, b and total(a+b), showed a low accordant the fruit was reaching its senescents. A similar trend was observed with the variable

J. F. Cajuste

323

Estudo das relações entre tipos de solos, alteração, mineralogia e topografia por sensoriamento remoto hiperespectral  

Microsoft Academic Search

Principal components, band depth analysis and the Spectral Feature Fitting (SFF) technique were applied over hyperspectral data collected by the Airborne Visible\\/InfraRed Imaging Spectrometer (AVIRIS) in the vicinity of Campo Verde (MT) to characterize major variations in reflectance of different soil types; changes in the depth of major absorption bands due to kaolinite (2210 nm) and gibbsite (2260 nm); and

Lênio Soares Galvão

324

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.

325

El ensayo latinoamericano de escritoras: Asuntos de genero literario, identidad femenina y concientizacion por la escritura  

Microsoft Academic Search

At the end of the twentieth century an increasing interest developed toward recovering Latin American women's essays from their hidden place in the literary canon. New critical perspectives and anthologies by Latin American, Spanish and American scholars shed light to the study of a genre that traditional criticism had hitherto denied a place. This dissertation examines feminist conceptions of the

Lucero Tenorio-Gavin

2001-01-01

326

Pneumonite por amiodarona- -um caso clínico Amiodarone pneumonitis A clinical case report  

Microsoft Academic Search

Amiodarone is an anti-arrhythmic drug that causes many side effects, even when used in low doses (200mg\\/day). The most important non-cardiologic side effect is hyper- sensitivity pneumonitis. We present a clinic case of a man, treated with amioda- rone for one year, who was admitted with a hypersensitivity pneumonitis. The patient was treated with systemic corticosteroids and amiodarone was suspended,

Nuno Germano; Maria do Carmo Catarino; Rogélia Paula Mendonça

2002-01-01

327

Evaluación de una unidad de rehabilitación de salud mental realizada por pacientes con trastorno esquizofrénico  

Microsoft Academic Search

For the present study we asked 74 schizophrenic patients to fill in a questionnaire. The purpose of this work was to find out their perception and satisfaction with the following aspects: measures of the treatments' efficacy, human and material resources of our service, quality of the relationship. In our conclusions we reflect on the utility of this type of studies.

Carlos CUEVAS YUST; Remedios DORADO GARCÍA; Agustina HERVÁS DE LA TORRE; Margarita LAVIANA CUETOS; Manuel Jesús; MARTÍNEZ LÓPEZ; Emilia NAVARRÓN CUEVAS; Salvador PERONA GARCELÁN; José Manuel; RAMOS LEÓN; Servicio Andaluz de Salud

328

Una propuesta de recorrido bibliográfico por las migraciones femeninas en España  

Microsoft Academic Search

A bibliographical journey through female migration in Spain This article refers to the key points arised from more than 100 works (published or unpub- lished) on female immigration that have came out in Spain during the last decade. What we propose here is to look over these materials in order to identify the most important characteristics. This essay will allow

Gemma Aubarell; Avda. Diagonal

2000-01-01

329

Revisión y recomendaciones sobre la prevención, diagnóstico y tratamiento de la infección posnatal por citomegalovirus  

Microsoft Academic Search

Postnatal cytomegalovirus (CMV) infection in the newborn can occur from exposure to maternal cervical secretions during birth, ingestion of breast milk, transfusion of blood products or transmission by body fluids of infected people. Breast milk is the main source of infection, given the high rate of CMV-positive mothers excreting CMV in milk. Freezing reduces the risk of CMV transmission by

A. Alarcón Allen; F. Baquero-Artigao

2011-01-01

330

Bacteriemia por Escherichia coli y dolor lumbar en mujer de 80 años  

Microsoft Academic Search

We report the case of an 80-year-old woman who presented with general deterioration, fever and low back pain. Diagnostic tests revealed spondylodiscitis with a paravertebral abscess. The main features of this osteoarticular infection, which mainly affects adults over the age of 50 years old, are discussed. Because the symptoms of this process are highly frequent in the elderly, diagnosis can

Silvia Rada Martínez; M. Ángeles García-Alhambra; Francisco Coca Díaz; José Antonio Serra Rexach

2007-01-01

331

Vota por tu Futuro: Partisan Mobilization of Latino Voters in the 2000 Presidential Election  

Microsoft Academic Search

Over the past two presidential elections, the major parties have been making a push at appealing to Latinos, airing over 3000 political advertisements in Spanish in the 2000 presidential election. In this paper, we ask whether the political ads used in the 2000 election had any effect on Latino turnout. We argue that the effectiveness of ads on the likelihood

Victoria M. DeFrancesco Soto; Jennifer L. Merolla

2006-01-01

332

Alternativas para la clarificación del jarabe de glucosa Alternativas para la clarificación del jarabe de glucosa Alternativas para la clarificación del jarabe de glucosa Alternativas para la clarificación del jarabe de glucosa Alternativas para la clarificación del jarabe de glucosa obtenido por hidrólisis enzimática del almidón obtenido por hidrólisis enzimática del almidón obtenido por hidrólisis enzimática del almidón obtenido por hidrólisis enzimática del almidón obtenido por hidrólisis enzimática del almidón  

Microsoft Academic Search

The present paper studies some routes for separating and purifying glucose syrup obtained by enzymatic hydrolysis of potato starch. The clarifying process is done in three stages. The first one (solids remotion) is done by applying conventional solid-liquid separation techniques such as sedimentation, centrifugation and filtration, as well as studying the effect of using flocculant and coagulant agents, prior to

Óscar Fernando; Castellanos Domínguez; Gloria Teresa Cruz Guerrero; Gloria González; Andira Yesil Rentería Ayala

2004-01-01

333

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.

334

Sobre o uso das séries de Puiseux em mecanica celeste  

NASA Astrophysics Data System (ADS)

Neste trabalho é apresentada uma demonstração do uso dos diferentes desenvolvimentos em séries para as equações de perturbação em Mecânica Celeste no marco Hamiltoniano. Em trabalhos clássicos como os de Poincaré (Poincaré, 1893) por exemplo, já esta planteado o uso de potências não inteiras no pequeno parâmetro, o que evidencia a não analiticidade das funções quando uma ressonância ocorre. Nestes trabalhos os desenvolvimentos são na raíz quadrada da massa de Júpiter (o pequeno parâmetro). Mais recentemente (Ferraz-Mello, 1985) outros tipos de desenvolvimentos foram aplicados modificando substancialmente as ordens de grandeza e a velocidade de convergência das séries. Com esta abordagem, os desenvolvimentos foram expressados em termos da raíz cúbica do pequeno parâmetro. Neste trabalho apresentamos um enfoque geral, onde os diferentes tipos de desenvolvimentos em séries de Puiseux (Valiron, 1950) são obtidos a partir da aplicação de Teorema de Preparação de Weierstrass (Goursat, 1916) considerando a equação de Hamilton-Jacobi como uma equação algébrica. Os resultados são aplicados ao problema restrito dos três corpos em ressonância de primeira ordem e, dependendo da grandeza da excentricidade do asteróide em relação à de Júpiter, obtemos os diferentes desenvolvimentos, em raíz quadrada ou raíz cúbica da massa de Júpiter.

Miloni, O. I.

2003-08-01

335

Gradientes de abundâncias em galáxias espirais  

NASA Astrophysics Data System (ADS)

Gradientes de abundâncias obtidos através de observações de regiões H II têm um papel importante no estudo de formação e evolução de galáxias espirais. Determinações diretas de abundâncias somente são obtidas quando linhas de emissão sensíveis à temperatura eletrônica (e.g., [O III]l4363) são detectadas. Infelizmente estas linhas são fracas ou não observadas em regiões H II de baixa excitação. Nestes casos métodos empíricos são utilizados para estimar as abundâncias químicas. Entretanto, diferentes métodos têm produzido diferentes estimativas de gradientes de abundâncias. Neste trabalho, nós construímos modelos de fotoionização com o objetivo de descrever diagramas de diagnósticos construídos com dados publicados de algumas galáxias espirais normais e barradas. Comparações entre nossas estimativas de abundâncias e de outros métodos mostram que quando não há acordo entre eles, nossos modelos superestimam as abundâncias de O/H e N/H por um fator de 0.3 dex em relação a estimativas diretas de abundâncias, e por fator de 0.2 dex em relação a outros métodos empíricos. A origem da produção de nitrogênio nas galáxias estudadas é discutida.

Dors, O. L.., Jr.; Copetti, M. V. F.

2003-08-01

336

Nebulosas planetárias galácticas: idades e cinemática  

NASA Astrophysics Data System (ADS)

As nebulosas planetárias são formadas a partir de estrelas com massas entre 0.8 e 8 massas solares na sequência principal, formando um conjunto de objetos com idades e populações diferentes. Esse fato torna as nebulosas interessantes ao estudo da rotação galáctica, uma vez que as populações mais jovens devem estar claramente associadas ao disco fino da Galáxia, enquanto que as populações mais velhas estariam associadas ao disco espesso ou mesmo ao halo galáctico. Neste trabalho, utilizamos uma grande amostra de nebulosas com velocidades radiais conhecidas para determinar a curva de rotação da Galáxia. Para minimizar os erros decorrentes das incertezas nas distâncias, usamos quatro diferentes escalas estatísticas. Para a atribuição da idade dos objetos, utilizamos o método proposto recentemente por Maciel et al. (Astron. Astrophys. 397, 667, 2003), em um estudo da variação temporal dos gradientes de abundâncias. Com esse método, é possível obter uma classificação das nebulosas por grupos de idade, totalmente independente de outros sistemas de classificação, uma vez que as idades são estimadas individualmente, a partir das metalicidades das nebulosas. Nossos resultados são comparados com as previsões dos tipos de Peimbert, e mostram que os desvios médios das curvas obtidas são sensivelmente menores nos casos dos objetos mais jovens, associados ao disco fino, com relação aos objetos mais velhos do disco espesso, levando à determinação de uma curva de rotação semelhante à dos objetos de população I jovem. (CNPq)

Lago, L. G.; Maciel, W. J.

2003-08-01

337

BIODEGRADATION OF THE CELLULOSE FROM SUGARCANE BAGASSE BY FUNGAL CELLULASE BIODEGRADACIÓN DE CELULOSA DE BAGAZO DE CAÑA DE AZÚCAR POR HONGOS CELULOLÍTICOS BIODEGRADACIÓN DE CELULOSA DE BAGAZO DE CAÑA DE AZUCRE POR FUNGOS CELULOLÍTICOS  

Microsoft Academic Search

The enzyme production by Aspergillus niger IZ 9 was evaluated in different carbon sources: glucose; non-treated bagasse; bagasse treated with 4% solution of sodium hydroxide; bagasse treated with 4% solution of sodium hydroxide-phosphoric acid-steam; and filter paper. Maximum production of cellulase was obtained with filter paper, when the average activity was 0.44 UI mL-. With relationship to the work-temperature, maximum

C. L Aguiar

2001-01-01

338

Sintetizacao de Filmes de Diamante Assistido Por JATO de Plasma Gerado Por Uma Descarga Eletrica Tipo Arco Em Baixa Pressao, Parte 2 (Synthesis of Diamond Film Assisted by an Arcjet Plasma Source, Part 2).  

National Technical Information Service (NTIS)

This report presents the results of the initial characterization of a plasma jet projected for diamond thin film deposition. The temperature and density profiles were measured with a double electrostatic probe. A conceptual project involving the design of...

P. R. P. Barreto E. Delbosco

1993-01-01

339

¿POR QUÉ HA SIDO MAYOR LA REDUCCIÓN DE LA POBREZA EN CHINA QUE EN INDIA EN LAS ÚLTIMAS TRES DÉCADAS?  

Microsoft Academic Search

The aim of this dissertation is to analyze the reasons for the reduction of poverty in China and India in the last 30 years. The dimensions of both countries have produced an effect at worldwide scale, since in this period, the number of poor people has declined for first time in History. At the same time, China and India have

David Francisco López García

2011-01-01

340

Contaminação de águas superficiais por agrotóxicos em função do uso do solo numa microbacia hidrográfica de Agudo, RS  

Microsoft Academic Search

This work was accomplished with the intention of quantifying the presence of pesticide molecules in surface waters of three landscape units (LU) with different usage configurations in the Agudo watershed of the State of Rio Grande do Sul, Brazil. Two semiautomatic water collectors were installed at the stream of each LU, from which samples were collected during rain over three

Edson C. Bortoluzzi; Danilo dos S. Rheinheimer; Celso S. Gonçalves; João B. R. Pellegrini; Renato Zanella; André C. C. Copetti

2006-01-01

341

LOS PROCESOS DE LA ATENCIÓN Y EL ELECTROENCEFALOGRAMA CUANTIFICADOS EN UN GRUPO DE PACIENTES CON TRASTORNO POR DÉFICIT DE ATENCIÓN  

Microsoft Academic Search

SUMMARY The Attention Deficit Disorder (ADD) is a developmental and chronical disorder, characterized mainly by a decrease in attention. Difficulties in the inhibitory control (expressed through behavioral and cognitive impulsiveness) and also verbal and motor restlessness are characteristic in this disorder. They should appear at an early age (before 7) and be considered inadequate in regard to the patient's age

Ernesto Reyes-Zamorano; Josefina Ricardo-Garcell; Gabriela Galindo; José Cortes; Gloria Otero

2003-01-01

342

Fascitis necrosante por Staphylococcus aureus resistente a la meticilina adquirido en la comunidad productor de leucocidina de Panton-Valentine  

Microsoft Academic Search

Community-Acquired Methicillin-Resistant Staphylococcus aureus (CA-MRSA) is a worldwide emerging pathogen that is able to produce serious skin and soft- tissue infections such as necrotizing fasciitis, as well as pneumonia and osteomyelitis. We present a 14 month child with necrotizing fasciitis, confirmed by magnetic resonance imaging, produced by CA-MRSA Panton-Valentine leukocidin producer. The clinical outcome was good after early surgical treatment

M. Tobeña Rué; F. Coll Usandizaga; C. García Fontecha; R. Bartolomé Comas; F. A. Moraga Llop

2009-01-01

343

Educación superior e ingresos laborales: Estimaciones paramétricas y no paramétricas de la rentabilidad por niveles y carreras en el Perú  

Microsoft Academic Search

Si relacionamos el logaritmo del ingreso laboral con los años de educación a través de una especificación “minceriana” tradicional obtenemos que, en el Perú, el rendimiento de un año adicional de educación sería del orden del 10%. En la primera parte de este estudio, sin embargo, encontramos que los principales supuestos que permiten relacionar este porcentaje con el concepto de

Gustavo Yamada; Juan F. Castro

2010-01-01

344

Modo comunicativo utilizado por crianças com síndrome de Down*** Communicative profile used by children with Down Syndrome  

Microsoft Academic Search

Background: the communication of children with Down syndrome (DS) is frequently impaired due to difficulties in the phonological, syntactic and semantic aspects of language. In order to compensate these difficulties, many children use gestures for a longer period of time than children who present typical development (TD). Aim: to verify the performance of children with DS regarding their communicative profile

Suelly Cecilia; Olivan Limongi

2008-01-01

345

CARACTERIZACIÓN DE PELÍCULAS DELGADAS DE CARBURO DE TUNGSTENO (W-C) OBTENIDAS POR EL MÉTODO DE CO-SPUTTERING  

Microsoft Academic Search

Tungsten Carbide (W-C) thin films were obtained by r.f. (13.56 MHz) magnetron co-sputtering process in a argon background gas, from a mosaic targets of carbon C (99.9%) and tungsten W (99.9%) with different W and C cmncentrations. The thin films were deposited at temperatures between 300 and 500 °C onto the silicon (100) and AISI D3 steel substrates. Energy Dispersive

J. M. Caicedo; N. Ramírez; L. Yate; J. C. Caicedo; V. García; G. Zambrano; P. Prieto; Nuevos Materiales

2005-01-01

346

Riesgo laboral y residencial por exposición a campos electromagnéticos Labour and residential risk due to electromagnetic fields exposition  

Microsoft Academic Search

In the recent years, there has been an increment of ex- position to electromagnetic fields (EMF), specially residen- tial and labour exposure. Some scientist allege that exposure to electric and mag- netic fields generated mainly by electric power delivery sys- tems is responsible for health problems as reproductive dys- function, birth defects, neurological disorders and cancer. This article provides a

M. Física; Pastor Vega

347

El papel de las combinaciones de antirretrovirales a dosis fijas en el tratamiento de la infección por VIH-1  

Microsoft Academic Search

The launch of generic forms of some of the drugs included in fixed-dose combinations of antiretrovirals (FDCA) raises the potential risk of breaking these combinations in order to allow the administration of the new cheaper generic drug. This could result in a step back in some major advances achieved in simplicity and treatment adherence, resulting in an increased risk of

Josep M. Llibre; Antonio Antela; José Ramón Arribas; Pere Domingo; Josep M. Gatell; José López-Aldeguer; Fernando Lozano; Celia Miralles; José Moltó; Santiago Moreno; Enrique Ortega; Melcior Riera; Antonio Rivero; Concepción Villalonga; Bonaventura Clotet

2010-01-01

348

Validación del termociclador TEMPER en ensayos basados en la amplificación de ácidos nucleicos por reacción en cadena de la polimerasa  

Microsoft Academic Search

Validation of the TEMPER thermocycler in nucleic acid amplification by polymerase chain reaction. The thermocycler is a programmable cycling incubator that automatically performs the cyclic changes in temperature required for Polymerase Chain Reaction (PCR). In this paper we present the results of the Operational Qualification (OQ) of TEMPER thermocyclers (Center for Immunoassays, CIE). OQ is carried out to ensure that

Anny Armas; Iria García; Enny Morales; Vivian Alonso; Idania González; Jorge G Martínez-Casado; Yenitse Perea; Yaimé González

349

Porin Variation among Clinical Isolates of Neisseria gonorrhoeae over a 10?Year Period, as Determined by Por Variable Region Typing  

Microsoft Academic Search

America, San Francisco, 25–27 October 2001 (abstract 917). Financial support: Food and Drug Administration Office of Women’s Health; Oak Ridge Institute for Science and Education (postdoctoral fellowship to D.L.M.); National Institutes of Health (grant K24-AI01633 to J.M.Z.). Reprints or correspondence: Dr. Margaret C. Bash, Division of Bacterial, Parasitic,

Freyja Lynn

2003-01-01

350

Efeito do gradiente de martensita induzida por deformação sobre o fenômeno de delayed cracking em aços inoxidáveis austeníticos  

Microsoft Academic Search

Resumo: O principal objetivo deste trabalho foi estudar o fenômeno de Delayed Cracking em aços inoxidáveis austeníticos quando foram severamente deformados em operações de estampagem. Durante a conformação, a austenita destes aços se transformou em martensita e a fração volumétrica desta fase apresentou variação em relação à altura da parede do copo e à composição química dos aços. O cobre

Marta Ribeiro dos Santos; Hélio José Batista Alves; Robson Guimarães Lopes; Berenice Mendonça Gonzalez

2007-01-01

351

Sistema de injeção em fluxo espectrofotométrico para monitorar peróxido de hidrogênio em processo de fotodegradação por reação foto-Fenton  

Microsoft Academic Search

Fenton processes (Fe2+\\/H2O2\\/UV). Sample is injected manually in a carrier stream and then receives by confluence a 0.1 mol L-1 NH4VO3 solution in 0.5 mol L -1 H 2SO4 medium. The product formed shows absorption at 446 nm which is recorded as a peak with height proportional to H 2O2 concentration. The performance of the proposed system was evaluated by

Mirela C. Oliveira; Raquel F. Pupo Nogueira; José A. Gomes Neto; Wilson F. Jardim; Jarbas J. R. Rohwedder

2001-01-01

352

Obtencao do litio metalico por eletrolise de sais fundidos. (Obtainment of lithium metal by electrolysis of molten salts).  

National Technical Information Service (NTIS)

The obtainment metallic lithium through KCL + LiCl, using a stainless steel cathode and a graphite anode is studied. The applications of lithium on nuclear energy, aerospatial program, metalurgy and as refining and degassing agent are also presented. The ...

M. A. Z. Silva Costa

1988-01-01

353

Comparação entre a intensidade do esforço realizada por jovens futebolistas no primeiro e no segundo tempo do jogo de Futebol  

Microsoft Academic Search

Comparison between the effort intensity of young soccer players in the first and second halves of the soccer game Objective: Compare the effort intensity (IE) of young soccer players between the first and second halves of official games. Methods: 25 ath- letes were evaluated (17,5 ± 1,2 years; 8,5 ± 1,0% of body fat; 175,1 ± 6,8 cm; 69,3 ±

Lucas Mortimer; Luciano Condessa; Vinícius Rodrigues; Daniel Coelho; Danusa Soares; Emerson Silami-Garcia; Belo Horizonte

354

PRODUCCIÓN Y TECNOLOGÍA DE SEMILLAS MEJORADAS DE MAÍZ POR EL INIFAP EN EL ESCENARIO SIN LA PRONASE1  

Microsoft Academic Search

Seed technology and production of improved maize varieties from INIFAP without PRONASE. The National Institute of Research on Forestry, Agriculture, and Livestock (INIFAP) of Mexico, with other preceding institutions have released 221 hybrids and developed varieties during 62 years. This time INIFAP has worked in maize plant breeding. The genotypes had specific adaptation to different environmental conditions. The materials were

Alejandro Espinosa; Mauro Sierra Macías; Noel Gómez Montiel

355

Produtos de degradacao do TBP. Separacao e determinacao por cromatografia gasosa. (TBP degradation products. Separation and gas-chromatographic determination).  

National Technical Information Service (NTIS)

A separation method for di butylphosphate, mono butylphosphate and phosphoric acid as degradation products in organic and aqueous streams of the process containing variable amounts of actinides and fission products is described. The products were separate...

T. A. Kuada C. M. Alem H. T. Matsuda B. F. Araujo J. Araujo

1991-01-01

356

Bacillus cereus EM AMOSTRAS DE DOCES INDUSTRIALIZADOS COMERCIALIZADOS POR AMBULANTES NOS MUNICÍPIOS DE SEROPÉDICA E ITAGUAÍ - RJ  

Microsoft Academic Search

GOMES, L. P.; RODRIGUES, M. M.; SOARES, G.; BARONI, F. de A. and SOUZA, M. M. S. de. Bacillus cereus in samples of street-vended candies in counties of Seropédica and Itaguaí - RJ. Revista Universidade Rural: Série Ciências da Vida, Seropédica, RJ: EDUR, v. 24, n.2, p. 103-106, jul.-dez, 2004. Bacillus. cereus is a facultative aerobic sporeforming bacterium commonly found

LIGIA PORTUGAL GOMES; MAURA MENEZES RODRIGUES; GABRIELA SOARES; FRANCISCO DE ASSIS BARONI; MILIANE MOREIRA SOARES DE SOUZA

357

Detecção de aglomerados espaciais de óbitos por causas violentas em Porto Alegre, Rio Grande do Sul, Brasil, 1996  

Microsoft Academic Search

Violence is of major importance in the health profile of Brazilian metropolitan areas and should be treated as a public health problem. Spatial analysis methods can be highly useful for the surveillance and prevention of violence. This paper analyzes the spatial distribution of victims' place of residence in relation to the main causes of violent death in Porto Alegre (1996)

Simone M. Santos; Christovam Barcellos; Marilia Sá Carvalho; Rui Flôres

2001-01-01

358

Óbitos por acidentes de trânsito e frota de veículos Death by traffic accidents and motor vehicles in use  

Microsoft Academic Search

The number of death by traffic accidents per motor vehicles in use represent a better indicator of the level of violence in traffic than the mortality rate for traffic accidents utilized for public health policies. This paper decomposes the mortality rate for traffic accidents in motor vehicles in use per capita and number of deaths per motor vehicles and analyses

Samuel Kilsztajn; Roberto Leite da Silva; Dorivaldo Francisco da Silva; André da Cunha Michelin; Aissa Rendall de Carvalho; Ivan Lopes; Bezerra Ferraz

359

EFECTO DE LA AUXINA AIB EN LA PROPAGACIÓN DE AZAHAR DE LA INDIA (Murraya paniculata (L. Jack)) POR ACODO AÉREO  

Microsoft Academic Search

Effect of AIB when propagating azahar of India (Murraya paniculata (L. Jack) by air layering Azahar of India (Murraya paniculata) is widely cultivated as an ornamental plant. Its commercial propagation has been done by seeds, but the plants show very slow growth, taking a long time for transplanting; the asexual propagation has been difficult. The present study was conducted to

Maicol Castillo; Noris Hernández de Bernal

2005-01-01

360

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

361

Infertilidade associada a defeito microtubular dos espermatozóides de jumento (Equus asinus) avaliados por microscopia eletrônica de transmissão  

Microsoft Academic Search

A donkey infertility was described by transmission electron microscopy (MET). The spermiogram evaluated by light microscopy showed low sperm motility and high concentration of abnormal sperm with proximal cytoplasmic droplets. The material was evaluated by MET, where it was observed disarrangement of microtubules, causing irregular protrusions in the spermatic neck. The last test done was the in vivo fertility, using

André Maciel Crespilho; Fernanda da Cruz Landim-Alvarenga; Frederico Ozanam Papa

2006-01-01

362

EFEITO DO TAMANHO DE BLOCOS DE IMAGENS DIGITAIS NA CLASSIFICAÇÃO AUTOMÁTICA DE PLANTAS DE MILHO ATACADAS POR Elasmopalpus lignosellus  

Microsoft Academic Search

The precision agriculture technology has been motivated by cost minimization, labor optimization and environmental pollution reduction. The Lesser Cornstalk Borer damages the corn plants on initial stage affecting the production because of stand reduction. Therefore, algorithms have been proposed for classifying damaged corn plants by that pest. The objective of this work was to evaluate the influence of image block

R. S. ZANDONADI; F. A. C. PINTO; D. G. SENA JÚNIOR; D. M. QUEIROZ

363

Radiostrontium Contamination During the Year 1960. Report No. 50; CONTAMINACION POR RADIOESTRONCIO DURANTE EL ANO 1960. Informe No. 50  

Microsoft Academic Search

The annual deposition of Sr⁹°sup >\\/measured in the Buenos Aires ; region during 1960 was 0.8 mc\\/km², and the concentration in the air was 0.2 ; x 10⁻³ mu mu c\\/kg, which is lower than the corresponding data for the ; previous year. The studies clearly indicated that during rainy seasons in spring ; and autumn the deposition of Sr⁹°

D. Beninson; J. Kramer; E. Mariano; E. Ramos

1961-01-01

364

Estabilizacao de Osciladores Controlados Por Tensao Atraves de Cavidades Ressonantes (Stabilization of Voltage-Controlled Oscillators Through Resonant Cavities).  

National Technical Information Service (NTIS)

Described is a design procedure for cavity stabilization of voltage-controlled oscillators. The procedure is applied to the design of a voltage controlled oscillator, mechanically tuned in the 0.95 GHz to 1.35 GHz frequency band.

P. M. Marshall C. E. Santana

1986-01-01

365

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

National Technical Information Service (NTIS)

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

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

1984-01-01

366

Extraccion de vanadio por procesos combinados tostacion y lixiviacion. (Vanadium extraction by combined process of lixiviation and toasting).  

National Technical Information Service (NTIS)

Combinated toasting and leaching processes were applied at laboratory level to vanadiferous ore from Puyango deposit in order to evaluate different rates. Before leaching, a pretreatment consisting in toasting at open atmosphere was given to the ore. Both...

A. Coral

1992-01-01

367

Muerte por sobredosis: de la reacción aguda tras consumo de opiáceos a la muerte asociada al policonsumo  

Microsoft Academic Search

Drugs consumption is one of the main causes of death in young people from the European Union, either by an acute reaction to their consumption or because of AIDS. Mortality rates register is a prevalence indicator of drugs consumption, being introduced in our country in 1987 by the SEIT, and from the establishment of the European Observatory for drugs and

CÉSAR PEREIRO GÓMEZ; ANA BERMEJO BARRERA; BENITO LÓPEZ DE ABAJO

368

Tiña del cuero cabelludo por Microsporum canis en una mujer adulta Tinea capitis in the elderly: an unusual situation  

Microsoft Academic Search

Summary Tinea capitis is very rare in adults. We report a new case of tinea capitis caused by Microsporum canis in a healthy postmenopausal woman. We argue the predisposing factors of the dermatophytoses in adult patients and discuss about the use of terbinafine like first line of treatment in this entity, because of the apparition of resistances.

María López-Escobar García-Prendes; Cristina Raya Aguado; Cayetana Maldonado Seral; Narciso Pérez Oliva

369

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

370

VARIABILIDAD ESPACIAL DE PROPIEDADES HIDRAULICAS Y ELEMENTOS TRAZA EN SUELOS AFECTADOS POR EL VERTIDO DE AZNALCOLLAR SOMETIDOS A RECUPERACION  

Microsoft Academic Search

RESUMEN. Después del accidente minero de Aznalcóllar (25\\/04\\/98) se llevaron a cabo las labores de recuperación de los suelos, consistentes en: a) la remoción de los lodos depositados sobre la superficie de los mismos, así como de una capa de suelo contaminado de hasta 20 cm de profundidad, y b) la aplicación de enmiendas. Como consecuencia de estas labores, quedaron

F. Moreno; I. F. Girón; F. Cabrera

371

Neoplasia vesical tras nefroureterectomía por tumores de urotelio superior. ¿La cirugía del uréter distal influye en la evolución?  

Microsoft Academic Search

BLADDER NEOPLASM AFTER NEPHROURETERECTOMY FOR UPPER URINARY TRACT TUMOR. DOES DISTAL URETER SURGERY INFLUX ON THE EVOLUTION? Objective. To compare evolution in patients with urothelial upper tract tumor (UUTT) in whom we performed the classic open appro- ach to the distal ureter with those in whom whe performed the endoscopic approach. We study the bladder recurrences in each group and

Blanco Díez; Armas Molina J; Artíles Hernández JL; Martín Betancor

372

En otras palabras: Perfeccionamiento del espanol por medio de la traduccion (In Other Words: Perfecting Spanish Language Skills through Translation).  

ERIC Educational Resources Information Center

|This publication, written primarily in Spanish, is an activity book designed to teach Spanish through translation based on the theory that, in order to produce an acceptable translation, students must focus their attention on lexical and grammatical detail. The book combines incisive grammar explanations, relevant lexical information, and a wide…

Lunn, Patricia V.; Lunsford, Ernest J.

373

ANALISIS DE FATIGA DE LOS COMPONENTES DE UNA CENTRAL NUCLEAR POR EL METODO DE LAS FUNCIONES DE INFLUENCIA  

Microsoft Academic Search

In nuclear power plants, the fatigue in vessels and their associated components is caused by transients that occur at normal operating temperatures. Fatigue analysis validity must be continuously reviewed during the design period of the components. Fatigue accumulation due to in plant events produces the degradation of the vessel components. This is the cause that everyday is more under consideration

R. Cicero; I. Gorrochategui; J. A. Alvarez

374

Por que as firmas industriais dos países em desenvolvimento crescem após a estréia no mercado internacional? Evidências  

Microsoft Academic Search

Firstly, we show that innovative new-exporters in 2 001-2002 become larger and more productive than innovative non-exporters. However, our major contribution relies on the characterization o f the technological patterns behind the learning-by-exporting hypothesi s. Whilst innovative activities in general (but especially intramural R& D) were important to all firms, other sources of information were found to be very important

Bruno César Araújo; Sérgio Kannebley Jr; Beatriz Selan

375

Tomografía por emisión de positrones con 18F-fluorodeoxy-glucosa en un caso de plasmocitoma solitario de paladar blando  

Microsoft Academic Search

Solitary plasmacytoma is an uncommon tumor of plasma cells that can appear in the head and neck. It must be differentiated from multiple myeloma because of its initial presentation.A case of solitary plasmacytoma on the palate is presented. Furthermore, role of 18F-fluorodeoxyglucose Positron Emission Tomography (18F-FDG-PET) in its initial staging is analyzed.

R. Fernández López; I. Borrego Dorado; A. Paz Coll; R. Vázquez Albertino; P. Gómez Camarero; S. Sanz Viedma

2010-01-01

376

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

377

Patrones de uso, creencias populares y accidentabilidad por andador infantil (tacatá). Bases para una campaña de información sanitaria  

Microsoft Academic Search

Baby walkers are a potential cause of accidents in infants from 6 months to 1 year of age. We conducted a study to determine the patterns of walker use, the different points of view of the parents and the baby walker-related injuries in our health district. For this purpose, between November 1, 1992 and January 31, 1993, a questionnaire was

L. Santos Serrano; J. M. Paricio Talayero; A. Salom Pérez; M. Grieco Burucúa; J. Martín Ruano; M. J. Benlloch Muncharaz; T. Llobat Estellés; B. Beseler Soto

1996-01-01

378

[Encefalitis por anticuerpos contra el receptor de NMDA: experiencia con seis pacientes pediatricos. Potencial eficacia del metotrexato].  

PubMed

INTRODUCTION. Anti-N-methyl-D-aspartate (NMDA) receptor encephalitis is a condition that is increasingly more frequently diagnosed in the paediatric age. Unlike adults, in many cases it is not associated to tumours and the most common initial manifestations in children are seizures and movement disorders, while in adults there is a predominance of psychiatric alterations. CASE REPORTS. We present six confirmed paediatric cases with antibodies against the subunit NR1 of the NMDA receptor in serum and cerebrospinal fluid. Five of the cases began with seizures as the initial clinical symptom prior to the development of the classical clinical features of this condition. In all cases, steroids were used as the first line of treatment, although these only brought about control over the manifestations in one of them; the other patients therefore required second-line immunomodulators. All the patients received methotrexate as immunomodulator treatment to prevent relapses, and in all cases there was an improvement in the patients' situation. CONCLUSIONS. In our series of patients with anti-NMDA receptor encephalitis, none were associated with tumours. All of them were given methotrexate for at least one year and no adverse clinical or analytical events were observed; likewise, there were no neurological sequelae or relapses during treatment. Although it is a small series and it would be advisable to increase the number and time to progression, we see methotrexate as an excellent alternative immunomodulator treatment for this pathology. PMID:24150952

Bravo-Oro, A; Abud-Mendoza, C; Quezada-Corona, A; Dalmau, J; Campos-Guevara, V

2013-11-01

379

DISPERSIÓN DE SEMILLAS POR MURCIÉLAGOS EN UN BORDE DE BOSQUE MONTANO SEED DISPERSAL BY BATS IN A MOUNTAIN FOREST EDGE  

Microsoft Academic Search

Seed dispersal by bats has been overlooked and the effects of different vegetation types in this process are still unknown. We measured abundance and diversity of seeds dispersed by bats and other dispersal agents in a forest edge next to a young eucalyptus plantation in the Santuario de Fauna y Flora Otún-Quimbaya, Risaralda, Colombia. We compared seed shadows generated by

Sergio Estrada-Villegas; Jairo Pérez-Torres; Pablo Stevenson

2007-01-01

380

Combinación de colgajos locales y libre microvascularizado para reconstrucción del tercio facial inferior tras traumatismo por arma de fuego  

Microsoft Academic Search

Gunshot wounds to the maxillofacial region are a challenging problem for the surgeon responsible for reconstruction. The essential difference with respect to other injuries is the severity of the lesion and soft and hard tissue loss. Extensive literature exists on facial reconstruction following tumor extirpation, but there are few reports on the use of local flaps and free tissue transfer

Laura Villanueva-Alcojol; Damián Manzano Solo De Zaldivar; Raúl González-García; David González Ballester; Isidoro Rubio Correa; Cristina Hernández Vila; Luis Ruiz Laza; Carlos Moreno García; Florencio Monje

381

UTILIZACIÓN DEL MODELO DE EDEMA AURICULAR INDUCIDO POR TPA EN LA EVALUACIÓN FARMACOLÓGICA DE LOS CÁLICES DE PHYSALIS PERUVIANA L  

Microsoft Academic Search

The anti-inflammatory activity of dry-calices from Physalis peruviana is common in folk medicine. Using the ear oedema murine model induced by TPA this was confirmed, and was find that this activity is dose-dependent. By solvent partitions and preparative chromatographic techniques, 38 fractions was isolated, encountered that the Pp-D38-LF one is the more abundant and active against inflammation.

LUIS A. FRANCO; LUIS F. OSPINA; GERMAN E. MATIZ; RICARDO GAITAN

2007-01-01

382

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

383

Deteccion de radon en suelos por track-etch. (Track-etch detection of radon in soils).  

National Technical Information Service (NTIS)

In this work it is described the methodology to apply the track-etch technique, using detectors of nitrocellulose LR-115, for the detection of radon in soil. It is supported the use of the new detector carries and determined the parameters for revealing a...

P. Cervantes Gonzales D. Gonzalez

1990-01-01

384

PRACTICAS DE REHABILITACION DE ARIDISOLES Y ENTISOLES DEL NORTE DE LA PATAGONIA A FECTADOS POR LA APERTURA DE LINEAS SISMICAS  

Microsoft Academic Search

The north Patagonian region of Argentina is affected by desertification processes. The combination of petroleum activity and the existence of seismic lines across of this arid area increases desertification. The purpose of this study was to evaluate the application of different soil rehabilitation practices. Five soils, representative of the most important landscape units were selected: Typic Torripsamment, Argic Petrocalcid, Natric

P SCHMID; P BROQUEN

385

Plantas asociadas a la pesca y a sus recursos por los Indígenas Chorote del Chaco Semiarido (Argentina)  

Microsoft Academic Search

Summary: Plants associated to fishing and to their resources by Chorote indians from Chaco Semiarido (Argentine). Chorote indians belong to the Mataco-mataguayo linguistic family, they live in Argentina's Semiarid Chaco along the riverbanks of the Pilcomayo river in Salta province. Traditionally, they obtained their own living from hunting, gathering and fishing; being the latter of high cultural and economic value

GUSTAVO F. SCARPA

386

Analisis Por Cromatografia Liquida de Lubricantes Sinteticos Tipo Ester (Liquid Chromatography Analysis of Ester Type Synthetic Lubricants).  

National Technical Information Service (NTIS)

A chromatographic analytical method is described. The method is adapted to a Waters modular instrument and an absorption infrared spectrophotometer. The measurement parameters are described and several examples are presented. It is shown that the combinat...

M. C. Gutierrez L. Aliste

1985-01-01

387

Análise de ácidos graxos não-esterificados de plasma humano por cromatografia gasosa capilar com injeção sem divisão de fluxo  

Microsoft Academic Search

ANALYSIS OF NON-ESTERIFIED FATTY ACIDS IN HUMAN PLASMA BY CAPILLARY GAS-CHROMATOGRAPHY WITH SPLITLESS INJECTION. The aim of the present work was to test the combination of non-esterified fatty acid (NEFA) isolation using fumed silicon dioxide with capillary gas-chromatography (C-GC) with splitless injection for the analysis of NEFAs in human plasma. Injection volume, solvent re-condensation and split purge flow-rate were the

Jacqueline G. Ney; Alexandre G. Torres; Nádia M. F. Trugo

2004-01-01

388

Pré-concentração de nitrosaminas a partir de amostras aquosas por extração em fase sólida e cromatografia capilar eletrocinética micelar  

Microsoft Academic Search

-1 of each nitrosamines standards (dimethylnitrosamine, DMN; diethylnitrosamine, DEN; N-nitrosopyrrolidine, NPYR; N-nitrosopiperidine, NPIP; N- nitrosomorpholine, NMOR), the methodology showed a range of recuperation from 29 to 107% with a linear zone between 10 and 500 µg L -1 . The developed methodology can be applicable to the determination of these analytes in different aqueous samples.

Pedro José Sanches Filho; Kelen Daiane Zanin; Elina Bastos Caramão; Ronaldo Caramão Garcia; Angel Rios; Miguel Valcárcel

2003-01-01

389

ESTRUTURA FLORAL DAS ANGIOSPERMAS USADAS POR HELICONIUS ERATO PHYLLIS (LEPIDOPTERA, NYMPHALIDAE) NO RIO GRANDE DO SUL, BRASIL1  

Microsoft Academic Search

FLOWER STRUCTURE OF ANGIOSPERMS USED BY HELICONIUS ERATO PHYLLIS (LEPIDOPTERA, NYMPHALIDAE) IN RIO GRANDE DO SUL STATE, BRAZIL. A field survey of flowering plants used as food resource by the adults of Heliconius erato phyllis (Fabricius, 1775) was carried out in four sites located in Rio Grande do Sul state, Brazil. Samples were taken in preserved areas of the Atlantic

Claudine A. Corrêa; Bruno E. Irgang; Gilson R. P. Moreira

390

Prevalencia y factores asociados con infección por virus del papiloma humano cervical en pacientes con artritis reumatoide  

Microsoft Academic Search

Background: Nevertheless its association with cervicouterine cancer, there is no information about cervical human papillomavirus infection prevalence in patients with rheumatoid arthritis. Objective: To evaluate human papillomavirus infection prevalence through molecular biology tests, and to analyze this infection related factors in patients with rheumatoid arthritis. Material and method : Analytic, transversal study to 250 patients: 61 women with rheumatoid arthritis

Wendoline Rojo Contreras; Héctor Montoya Fuentes; Jorge I Gámez Nava; Ángel E Suárez Rincón; Jesús Vázquez Salcedo; Miguel Padilla Rosas; Luz M Baltazar Rodríguez; Xochitl Trujillo; Mario Ramírez Flores; Benjamín Trujillo Hernández; Laura González López

391

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

392

Fechamiento de zircones por el metodo de trazas de fision. (Dating of zircons by the fission track method).  

National Technical Information Service (NTIS)

This work describes dating zircons by the Fission Track Method. Physical principles of the method, physical properties of zircons and geochemical properties of uranium are discussed briefly. When starting with a hand sample, mineral separation is required...

L. M. Tenorio Hernandez

1992-01-01

393

ANÁLISIS DEL RIESGO PARA LA SALUD PÚBLICA OCASIONADO POR LA EXPOSICIÓN A FLUORUROS EN EL ESTADO DE AGUASCALIENTES, MÉXICO  

Microsoft Academic Search

of the groundwater wells that provide drinking water for the state of Aguascalientes show fluoride concentrations above 1.5 mg\\/L. The objective of our research was to perform a risk analysis study to estimate the health implicationsof fluoride exposure through drinking water in Aguascalientes. Fluoride exposure doses were calculated for local population in each of the state municipalities. These estimates were

Adrián BONILLA-PETRICIOLET; Rodolfo TREJO-VÁZQUEZ; Carlos MÁRQUEZ-ALGARA

394

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

395

Prevention of thermal degradation of anthocyanins in blackberry juice with addition of different sugars Prevención de degradación termal de antocianinas en zumo de mora con adición de diferentes azúcares  

Microsoft Academic Search

The aim of this study was prevention of thermal degradation of blackberry juice anthocyanins through sugar addition. Blackberry juice samples were prepared without and with addition of 10% of different sugars (sucrose, fructose, glucose and trehalose), and heated at 50, 70 and 90 °C for 1 and 2 h. Since degradation of anthocyanins, over the time, followed first-order reaction model, calculation

M. Kopjar; V. Piližota

2011-01-01

396

QUALIDADE FISIOLÓGICA DE SEMENTES DE FEIJÃO EM PLANTIO DIRETO SOBRE DIFERENTES COBER TURAS DE PLANT AS EM DIAMANTINA, MG Physiological quality seeds of bean in no-tillage system over different coverings of plants in Diamantina, MG1  

Microsoft Academic Search

The objective this work was evaluate the effect of different coverings plants on the physiological quality seeds of bean in no- tillage system in Diamantina MG. The experiment was installed in the Campus II of UFVJM, in a Neossolo Quartzarênico Órtico típico, in blocks randomized design, with ten treatments and four replicates. The treatments were constituted of control chemical and

Ubirajara Russi Nunes; Nelson França Santos; Valter Carvalho; Andrade Júnior; Delacyr da Silva; Brandão Júnior; Geraldo Durães Pereira

397

MANIFESTACIÓN DE PETECA Y PÉRDIDA DE CALIDAD EN LIMONES EUREKA BAJO DIFERENTES CONDICIONES DE ALMACENAMIENTO REFRIGERADO MANIFESTATION OF PETECA AND FRUIT QUALITY LOSS IN EUREKA LEMON UNDER DIFFERENT COLD STORAGE CONDITIONS  

Microsoft Academic Search

Peteca, a physiological disorder of lemons (Citrus limon (L.) Burm. f.), has been linked to calcium nutrition and low temperatures in the orchard and postharvest storage. To establish the effect of cold storage period and temperatures on fruit quality and incidence of the disorder, yellow lemons (cv. Eureka (0.25 °Brix\\/acidity ratio) were harvested 5 d after a rainfall event and

Pedro L. Undurraga; José A. Olaeta; Jorge B. Retamales; Ana M. Toso

398

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

399

Microleakage evaluation of resin composite restorations polymerized with different blue light-emitting diode units (LED) Avaliação da microinfiltração marginal de restaurações de resina composta polimerizadas com diferentes aparelhos de LEDs  

Microsoft Academic Search

The aim of this study was to evaluate the microleakage of class II resin composite restorations polymerized with light- emitting diodes (LEDs) with different numbers of blue diodes. One hundred sixty-eight class II cavities were prepared in bovine teeth. A one-bottle adhesive system (Single Bond\\/3M ESPE) was applied. The microhybrid or packable resin composites were inserted in three horizontal increments

Cristiane Mariote AMARAL

400

Emergencia y sobrevivencia de gramíneas con diferentes secuencias de humedad\\/sequía en tres tipos de suelo Emergence and survival of native and introduced grasses in an arid environment under different wet-dry sequences in three soil types  

Microsoft Academic Search

Land degradation can be reversed using revegetation. Reseeding in degraded pastures is high risk, and requires knowledge of grass species behavior under several precipitation regimens. A study was done to evaluate germination and survival of native and introduced gramineas in an arid environment under different wet-dry sequences and in different soil types. The experiment was conducted under greenhouse conditions. Soils

Mario Humberto Esqueda Coronado; Alicia Melgoza Castillo; Manuel Sosa Cerecedo; Regina Carrillo Romo; Jorge Jiménez Castro

401

Un Acercamiento al Concepto de la Transferencia de Tecnología en las Universidades y sus Diferentes Manifestaciones1 An Approach to the Concept of Technology Transfer in Universities and their Different Manifestations  

Microsoft Academic Search

Palabras clave: Transferencia tecnológica, modelos de transferencia tecnológica, innovación. ABSTRACT. Historically, Society has formally given universities and research centers the almost exclusive mission of knowledge production; however, nowadays the trend is to expand this mission in order to meet the demands of the economically productive sectors and the society in general. This broadening of the purpose has, in turn, demanded

María del Socorro; Juan Carlos

402

CHEMICAL COMPOSITION AND RUMINAL DEGRADABILITY OF COWPEA AND SILVERLEAF DESMODIUM FORAGE LEGUMES HARVESTED AT DIFFERENT STAGES OF MATURITY (COMPOSICIÓN QUÍMICA Y DEGRADABILIDAD RUMINAL DE FORRAJE DE FRIJOL VIGNA Y DESMODIUM COSECHADOS A DIFERENTES ETAPAS DE MADUREZ)  

Microsoft Academic Search

SUMMARY The chemical composition and ruminal degradability of dry matter (DM) and nitrogen (N) of Cowpea and Silverleaf desmodium harvested at various stages of maturity was determined. In sacco degradability of protein and DM of the two legumes were determined using four mature Hereford x Nkone rumen- cannulated steers. The crude protein (CP), total ash, neutral detergent fibre (NDF), acid

J. J. Baloyi; N. T. Ngongoni; H. Hamudikuwanda

2008-01-01

403

Alimentación de protozoeas del langostino Pleoticus muelleri Bate utilizando diferentes microencapsulados y especies de microalgas Feeding of protozoeal stages of the shrimp Pleoticus muelleri Bate with different microencapsulated food and microalgae species  

Microsoft Academic Search

The aim of this work was to obtain an adequate diet for the growth and survival of protozoeal stages of Pleoticus muelleri. Parabolic tanks of 10 liters were used and the shrimp were kept under controlled conditions of temperature, salinity and pH. Naupliar stages were stored at a density of 100 l-1. Different combinations of Chaetoceros gracilis, Tetraselmis chuii, dry

Juan C. Mallo; Jorge L. Fenucci

404

Efeitos de diferentes fontes de energia sobre taxa ovulatória, fertilidade e sobrevivência embrionária em marrãs cíclicas (Effects of different energy sources on ovulation rate, pregnancy rate and embryo survival in cyclic gilts)  

Microsoft Academic Search

Fifty four cyclic gilts were randomly selected and uniformized according to genetic background, litter of origin, weight gain, backfat, number of cycles and clinical score. Gilts were alloted to one of two groups fed isocaloric, isoproteic and isolysinic diets. Two energy sources were tested: corn starch (T1) and soybean oil (T2). Second estrus was synchronized with oral allyl-trenbolone, so that

G. S. Machado; D. O. Fontes; M. A. Silva; V. F. Oliveira; T. C. T. Silva

405

COMPOSIÇÃO FÍSICO-QUÍMICA E QUALIDADE DO CAFÉ SUBMETIDO A DOIS TIPOS DE TORRAÇÃO E COM DIFERENTES FORMAS DE PROCESSAMENTO Physical-chemical composition and quality of coffee submitted to two roasting procedures and to different methods of preparation  

Microsoft Academic Search

This study was carried out to determine alterations in the physical-chemical, chemical and sensorial composition of a Rubi cultivar coffee, which was submitted to different methods of preparation and two roasting procedures. The coffees were harvested in a farm at UFLA with a central pivot design. After processing, samples were divided into raw and roasted coffees and the following parameters

Heloisa Helena de Siqueira; Celeste Maria; Patto de Abreu

406

COMPOSTOS NÃO VOLÁTEIS EM CAFÉS DA REGIÃO SUL DE MINAS SUBMETIDOS A DIFERENTES PONT OS DE TORRAÇÃO Non-volatile compounds in coffee from the south of Minas Gerais state region submitted to different roasting degrees  

Microsoft Academic Search

The roasting process of coffee induces sensorial, chemical and physical alterations in the raw material. The type and intensity of the process depend mainly on the chemical composition of the grains and on the time and temperature used. This process promotes the degradation, formation and volatilisation of several compounds. There are roast and ground coffees submitted to different roasting conditions

Mirian Pereira Rodarte; Sheila Andrade Abrahão; Gualberto Fonseca; Alvarenga Pereira; Marcelo Ribeiro Malta

407

Efecto de diferentes iones sobre el comportamiento anodico de la aleacion 800 en soluciones de cloruros a alta temperatura. (Effect of different ions on the anodic behaviour of alloy 800 chloride solutions at high temperature).  

National Technical Information Service (NTIS)

The anodic behavior and passivity breakdown of alloy 800 in sodium bicarbonate and sodium phosphate aqueous solutions were studied in the temperature range from 100 C to 280 C by means of electrochemical techniques. The effect of phosphate or bicarbonate ...

C. J. Lafont M. G. Alvarez

1993-01-01

408

DETERMINAÇÃO DA COR, IMAGEM SUPERFICIAL TOPOGRÁFICA E ÂNGULO DE CONTATO DE BIOFILMES DE DIFERENTES FONTES DE AMIDO 1 Determination of color, topographic superficial image and contact angle of the biofilms of different starch sources  

Microsoft Academic Search

Nowadays, the pollution has considerably increased by the large amount of the non-degradable synthetic plastics that is discarded everyday in the environment. One of the alternatives that could contribute to minimize this problem would be the use of the starch as main composite in biodegradable films also called biofilms; in other words, this material is easily degradable when disposed in

Washington Azevêdo da Silva; Joelma Pereira; Carlos Wanderlei; Piler de Carvalho; Fabiana Queiroz Ferrua

409

Av AliAção de diferentes híbridos suínos submetidos À insensibiliz Ação elétric A e gAsos A (co 2). PArte 3 - m ensur Ações visu Ais de qu AlidAde1  

Microsoft Academic Search

The electric stunning provided higher blood splashed levels in the areas of the inside round (0.477 and 0.26, p ? 0.01), shoulder\\/ cranial (0.154 and 0.039, p ? 0.005), shoulder\\/central (0.261 e 0.052, p ? 0.001), shoulder\\/caudal (0.180 and 0.030, p ? 0.01), loin\\/ central (0.185 and 0.065, p ? 0.01), loin\\/caudal (0.06 and 0.207, p ? 0.01) and loin\\/lateral

William BERTOLONI; Expedito Tadeu; Facco SILVEIRA; Marcela de R. COSTA; Charlí B. LUDTKE

410

RESPONSE OF MAIZE (Zea mays L) TO DIFFERENT NITROGEN FERTILIZER FORMULATIONS UNDER Striga lutea (LOUR) ARTIFICIAL INFESTATION (RESPUESTA DEL MAIZ (Zea mays L) CON INFESTACION ARTIFICIAL DE Striga lutea (Lour) A DIFERENTES FORMULACIONES DE FERTILIZANTES NITROGENADOS)  

Microsoft Academic Search

SUMMARY An experiment was conducted in the glass house of the Institute of Agricultural Research and Training of Obafemi Awolowo University, Moor Plantation, Ibadan, Nigeria in year 2000. The objective was to assess the response of maize to different fertilizer formulations under Striga lutea artificial infestation, and to test the efficacy of nitrogen fertilizer in controlling striga on maize. Six

S. A. Olakojo; G. Olaoye

2007-01-01

411

PRESENCIA DE DIFERENTES VIRUS DEL PIMIENTO (Capsicum annuum L.) EN ESPECIES DE MALEZAS ASOCIADAS AL CULTIVO Presence of different sweet pepper (Capsicum annuum L.) viruses on associated weed species  

Microsoft Academic Search

A B S T R A C T In a two growth-cycle survey, 30 annual and 13 perennial weed species were determined in different sweet pepper (Capsicum annuum L.) growing areas of the Limari and Elqui valleys of Coquimbo Region of Chile (29º to 30° S lat). The samples were randomly taken in and outside tomato fields, with and without

2005-01-01

412

CAPSAICINOIDES Y PREFERENCIA DE USO EN DIFERENTES MORFOTIPOS DE CHILE (Capsicum annuum L.) DEL CENTRO-ORIENTE DE YUCATÁN CAPSAICINOIDS AND PREFERENCE OF USE IN DIFFERENT MORPHOTYPES OF CHILI PEPPERS (Capsicum annuum L.) OF EAST-CENTRAL YUCATÁN  

Microsoft Academic Search

Based on the structure of the morphological diversity of pepper Capsicum annuum populations from the east-central region of Yucatán, the content of capsaicin and dihydrocapsaicin with high performance liquid chromatograph (HPLC) was assessed in 19 populations of nine morpho-types belonging to C. annuum L., known as Xcat ik (3), Sukurre (1), Ya'x ik (4), Dulce (5), Picopaloma (1) and Chowak

Esmeralda Cázares-Sánchez; Porfirio Ramírez-Vallejo; Fernando Castillo-González; R. Marcos Soto-Hernández; M. Teresa Rodríguez-González; J. Luis Chávez-Servia

2005-01-01

413

ALTERAÇÕES DE INDICADORES NEUROMUSCULARES EM DIFERENTES MOMENTOS DA PERIODIZAÇÃO EM ATLETAS DE VOLEIBOL. ALTERATIONS OF THE INDICATOR NEUROMUSCULAR IN FEMININE ATHLETE OF VOLLEYBALL AT DIFFERENT MOMENTS OF THE PERIODIZATION  

Microsoft Academic Search

The aim of this work was to know the alterations of the indicator neuromuscular in feminine athlete of volleyball at different moments of the periodization. Thirteen athletes of the feminine sex had been part of this study, with age average - 15,7±2 years, average corporal weight of 66,1± 3kg, stature - 1,75± 0,4 m and percentage of fat - 20,4%±

João Paulo Borin; Gabriel Baillo; Henrique Del Bem; Carlos Roberto Padovani; Roberto Pereira Padovani; Nathalia Arnosti Vieira; Miriam Fernandes; Debora Trevisan

2007-01-01

414

El compostaje como tecnologia para el tratamiento de residuos: compostaje de bagazo de sorgo dulce con diferentes fuentes nitrogenadas. (Composting as a waste treatment technology: composting of sweet sorghum bagasse with different nitrogen sources).  

National Technical Information Service (NTIS)

The purpose of this work is to study aerobic solid fermentation of sweet sorghum bagasse in mixture with other additives as nitrogen sources to evaluate the utilization of this material as a substrate for composting. The characteristics of sweet sorghum b...

J. Vicente J. E. Carrasco M. J. Negro

1996-01-01

415

EVALUACIÓN Y CARACTERIZACIÓN DE LA HERRUMBRE DE ACEROS AUTOPROTECTORES (PATINABLES) OBTENIDA EN DIFERENTES ENSAYOS ACELERADOS DE CORROSIÓN Evaluation and charaterization of weathering steel corrosion products obtained in different accelerated corrosion tests  

Microsoft Academic Search

The rust layesr formed on weathering steels surface has been object of numerous studies thanks to its excellent protective properties, allowing to the accurate use of weathering steel by long periods of time and therefore, their low maintenance cost. In the present work, the two weathering steels behaviour have been evaluated in the corrosion first stages in different atmospheres: urban-

Grupo de Corrosión; Investigaciones Metalúrgicas; DANIEL DE LA FUENTE; Ciencias Ambientales

2007-01-01

416

QUALIDADE FÍSICO-QUÍMICA DE DIFERENTES MARCAS DE CAFÉS EM PÓ, PRODUZIDOS E COMERCIALIZADOS EM DOURADOS\\/MS PHYSICOCHEMICAL QUALITY OR VARIOUS BRANDS OF COFFEE POWDER COMMERCIALIZED AND PRODUCED IN DOURADOS \\/ MS  

Microsoft Academic Search

Coffee is a beverage consumed worldwide and widely used as a stimulant. Many species of coffee are known, but the most used are Coffea arábica and Coffea robusta. Coffee is a product commonly adulterated, giving them characteristics that they do not possess and thus, compromising the flavour and nutrients of the product. This study aimed to evaluate the quality of

Regieli Rincon; Juliana da Silva AGOSTINI

417

Comparación de las determinaciones de glucosa en sangre Comparación de las determinaciones de glucosa en sangre Comparación de las determinaciones de glucosa en sangre Comparación de las determinaciones de glucosa en sangre por química seca y química húmeda: su influencia en la por química seca y química húmeda: su influencia en la por química seca y química húmeda: su influencia en la por química seca y química húmeda: su influencia en la por química seca y química húmeda: su influencia en la toma de decisiones terapéuticas toma de decisiones terapéuticas toma de decisiones terapéuticas toma de decisiones terapéuticas toma de decisiones terapéuticas  

Microsoft Academic Search

Objetive. To determine the variability between glucose quantifi- cation through dry and wet chemistry , and its importance in treatment handling. Methods and Materials. Glucose was quantificated in 106 diabetic patients, with two methods: 1.- By using portable whole blood glucose meter ( Dry Chemistry ) and 2.- By sequential enzimatic method utilizing glucose oxidase and peroxidase ( GOD \\/

Eugenia Dávila-Esqueda; M. C. Rosendo Silva-Ruiz; Flavio Martínez-Morales; Yazmin Rivera-Berlanga

418

Perfis de temperatura eletrônica em regiões HII  

NASA Astrophysics Data System (ADS)

As flutuações de temperatura eletrônica em regiões HII, inicialmente propostas para explicar as discrepâncias entre os valores de temperatura obtidos por diferentes métodos, têm sido apontadas como a causa mais provável das enormes diferenças encontradas entre as abundâncias químicas medidas através de linhas excitadas colisionalmente e de linhas de recombinação. Recentemente têm sido reportadas tentativas de detecção e quantificação diretas das flutuações de temperatura eletrônica através de medidas ponto a ponto, obtidas por meio de espectroscopia de fenda longa, das razões de linhas [OIII]l4263/l5007 e [NII]l5755/l6584, principais sensores de temperatura. Neste trabalho, utilizamos o código numérico de fotoionização Cloudy para avaliar a confiabilidade desse procedimento. Concluímos que, para valores de densidade eletrônica e de temperatura efetiva da estrela ionizante típicos das regiões HII, os perfis superficiais de temperatura obtidos via medidas do sensor [OIII]l4263/l5007 são bons traçadores dos gradientes internos de temperatura eletrônica. Já os perfis de temperatura eletrônica medidos por meio da razão [NII]l5755/l6584 não reproduzem os gradientes verdadeiros de temperatura.

Copetti, M. V. F.

2003-08-01

419

Número misterioso  

NSDL National Science Digital Library

Combine la lógica y los números en este juego para todas las edades. Una persona escoge un número y anuncia en qué rango cae, como por ejemplo: âEstoy pensando en un número entre 1 y 50.â Los otros jugadores hacen preguntas de sí o no para identificar el número. El jugador que identifica el número secreto gana. Este juego es fácil de adaptar a diferentes edades: los chicos más jóvenes pueden preguntar y pensar sobre âmayor queâ y âmenor queâ (Es menor de 7? Tiene un 1 en las decenas?) y los chicos mayores pueden preguntar sobre múltiples, factores, o relaciones entre números (Es un múltiple de 3? Es un número cuadrado?). Disponible para descargar en formato pdf y en Inglés.

Terc

2010-01-01

420

The science and politics of dental amalgam.  

PubMed

Dental amalgam--a mixture of elemental mercury and a silver-dominated metal alloy--has been the most widely used dental filling material for well over a century. Alternative materials exist but are not well suited for some important applications, and all are more expensive than amalgam. The toxic effects of occupational mercury exposure have long been known, but it was not until about 1980 that serious consideration was given to the possibility that mercury vapor escaping from amalgam fillings might be affecting health, specifically producing subtle effects on the central nervous system. Such effects have been reported among dentists and other dental personnel, whose exposures are well below industrial levels but above those from fillings alone. No large studies have been completed that examine the effects of mercury exposure from dental amalgam fillings. In the face of inadequate evidence on the possible risks of dental amalgam, countries have reacted desperately. Sweden is phasing out amalgam entirely, possibly by the end of 1997. Germany has produced guidelines for limiting its use, other countries have signaled their intention to reduce it, and others--the United States and Canada--have studied the matter but taken no action. Policy differences within Europe have made dental amalgam a test case for the European Community's new medical device regulations. Relatively little epidemiologic research has been initiated to try to answer the question of dental amalgam's possible health effects. An international effort to define and carry out a research agenda to guide public policy is called for. PMID:9509800

Gelband, H

1998-01-01

421

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.

422

O 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

423

Precessão do jato de 3C120: simulações hidrodinâmicas 3D  

NASA Astrophysics Data System (ADS)

Observações com técnicas de interferometria com longa linha de base têm mostrado a existência de um jato relativístico com componentes superluminais na região central de 3C 120. Estas componentes são ejetadas em distintas direções no plano do céu e com diferentes velocidades aparentes. Estas características foram interpretadas em trabalhos anteriores como efeitos da precessão do jato relativístico. Neste trabalho, realizamos simulações tri-dimensionais do jato de 3C 120 utilizando os parâmetros de precessão determinados em trabalhos anteriores e variando as características iniciais do jato e meio ambiente, tais como densidade numérica e temperatura. Todas as simulações foram feitas com o código hidrodinâmico YGUAZÚ-A, assumindo-se um jato adiabático descrito por uma equação de estado relativística. Pelo fato de estarmos utilizando um código hidrodinâmico, nós assumimos que a intensidade do campo magnético e a distribuição de partículas, necessários para se calcular a emissão sincrotron, são proporcionais à pressão hidrodinâmica. Comparação entre dois cenários distintos, nos quais o material do jato é ejetado com velocidade constante (jato contínuo) e com velocidade modulada por um padrão sinusoidal no tempo (jato intermitente), é apresentada e discutida. Para jatos que apresentam fenômenos de precessão e intermitência, com amplitude de variação na velocidade de injeção maior que dez por cento da velocidade média de injeção, a hipótese balística, controlada pela intermitencia, é mais provável. Por outro lado, para jatos com precessão mas sem intermitência (ou com amplitude de variabilidade em velocidade mais baixa que no caso anterior), o efeito da precessão na morfologia do jato não é desprezível. Portanto, de um modo geral, ambos efeitos (precessão e movimentos balísticos) devem estar concorrendo para afetar a morfologia dos jatos superluminais.

Caproni, A.; de Gouveia dal Pino, E. M.; Abraham, Z.; Raga, A. C.

2003-08-01

424

INFORMES JURÍDICOS Y NOTAS POLÍTICAS SOBRE LA SITUACIÓN POLÍTICA Y JURÍDICA DE ANDORRA REMITIDOS AL PREFECTO DE LOS PIRINEOS ORIENTALES (1881-1965) POR EL MINISTERIO DE ASUNTOS EXTERIORES GALO, POR EL COMISARIO EXTRAORDINARIO PARA LOS VALLES DE ANDORRA RENÉ BAULARD (1933 Y 1936-1940) Y POR OTRAS AUTORIDADES Y PERSONALIDADES POLÍTICAS Y ACADÉMICAS (CUARTA PARTE) [PARTICULAR REFERENCIA A LA RECIENTE PELÍCULA «THERE BE DRAGONS»  

Microsoft Academic Search

The main aim of the fourth part of this article is to continue publishing service notes by René Baulard, lieutenant colonel, later colonel, and Special Commissioner for the Andorran Valleys, regarding his second term of office, between 1936 and 1940. The recent release of the film «There Be Dragons», directed and written by the British Roland Joffé, is a truly

Manuel J. Peláez; María del Carmen Amaya Galván; Cristina Castillo Rodríguez

2011-01-01

425

Validación del Cuestionario de Variables de Interacción Psicosocial (VIP): hacia un modelo de tratamiento de las conductas adictivas «guiado por la personalidad»  

Microsoft Academic Search

ObjectiveThe personality can be studied at three levels: clinical (disorders), traits and the level of interactive variables. There are valid instruments for the measurement of both first, but we do not have any that explores in a combined way the interactional level. We propose a model of «personality guided treatment» for the addictive behaviours in the direction of the one

E. J. Pedrero Pérez; M. Pérez López; S. de Ena de la Cuesta; C. Garrido Caballero

2005-01-01

426

Estrategia de atención de niños hospitalizados por infecciones respiratorias agudas bajas A strategy for the management of hospitalized children with acute lower respiratory infections  

Microsoft Academic Search

Objectives To improve the quality of care provided to hospitalized children having acute lower respiratory infections (ALRI), to increase the knowledge on this health condition, and to broaden the utilization of health care resources through a program called \\

Ana M Ferrari; María C Pireza; Alicia Montanoa

427

COMPARACIÓN DE LA COMPOSICIÓN QUÍMICA DE LOS METABOLITOS SECUNDARIOS VOLÁTILES DE CUATRO PLANTAS DE LA FAMILIA PIPERACEAE OBTENIDOS POR DESTILACIÓN-EXTRACCIÓN SIMULTÁNEA  

Microsoft Academic Search

Volatile fractions were isolated by simultaneous distillation- solvent extraction (SDE) from leaves of four Piperaceae species: Piper marginatum Jacq, P. aduncum L., P. hispidum Sw. and Pothomorphe peltata L. Components were separated and identified by gas chromatography coupled to mass spectrometry (GC - MS).

EDWIN J. BOTTIA; Estudiante de Química; OLGA L. DÍAZ; DEYNY L. MENDIVELSO; JAIRO RENÉ MARTÍNEZ; ELENA E. STASHENKO

2007-01-01

428

Cambios del EEG por habituación y condicionamiento en niños de tres a 15 años que acuden al Instituto Nacional de Rehabilitación (INR)  

Microsoft Academic Search

SUMMARY During waking, stimuli activate the sensory pathways giving rise to sensation and the response to such stimulation. The electrobiochemical changes and modifications in EEG rhythms event- related synchronization or event-related desynchronization, ERD or ERS) propagated in the specific and unspecific cortex are added to the changes elicited by the responses and to the new signals originated by those same

Héctor Brust-Carmona; Francisco Ramírez-Aboytes; José Martínez; Ángel Rodríguez Miguel; Blanca Flores-Ávalos; Oscar Yáñez-Suárez

2009-01-01

429

Dengue Hemorrágico \\/ Síndrome de choque por dengue en un paciente trasplantado cardiaco: reporte del primer caso y revision de la literatura  

Microsoft Academic Search

Dengue fever (DF), dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) are little known and topics studied in the context of transplant patients (especially in cardiac transplants). In our knowled- ge there are no reports in the literature on dengue cases in cardiac transplant patients. Objective. To make the report of a patient who develops a hemorrhagic dengue and

Eduardo Contreras Zúñiga

430

Nível de entendimento das informações de primeiros socorros de bula e rótulo de agrotóxico por meeiros de plantações de tomate de Sumaré, SP  

Microsoft Academic Search

Level of understanding of first aid information contained in agrochemical labels by tomato growing tenant farmers in Sumaré, SP Agrochemical product labels contain information required by law indicating how to use it and handle safely in order to prevent accidents, avoid intoxications and minimize damages to rural workershealth. The main objective of this work was to assess the level of

Cybelle Cristina Tomazin; Flávio Ailton; Duque Zambrone

431

Intoxicações provocadas por agrotóxicos de uso agrícola na microrregião de Dourados, Mato Grosso do Sul, Brasil, no período de 1992 a 2002  

Microsoft Academic Search

Reports of poisoning and suicide attempts in- volving pesticides in the micro region of Doura- dos, Mato Grosso do Sul State, Brazil, from 1992 to 2002, were evaluated, using data from the In- tegrated Center for Toxicological Surveillance under the State Health Department. A total of 475 reports were made during the period, of which 261 were accidental or occupational

Dario Xavier Pires; Eloísa Dutra Caldas; Maria Celina Piazza Recena

2005-01-01

432

EFECTO DE LA GEOMETRÍA DEL MOLDE EN EL ELECTROFORMADO DE MICROPIEZAS POR UV-LIGA EFFECT OF MOLD GEOMETRY IN MICROPARTS ELECTROFORMING BY UV-LIGA  

Microsoft Academic Search

UV-LIGA is a versatile technique which allows the fabrication of metal parts with high aspect ratio (height \\/ width) through the combination of a photolithographic processing of a polymer and the electroforming of a metal inside the cavities engraved in the polymer. This low-cost technique is used in a variety of areas including microfluidic, optics, instrumentation, plastic molding and telecommunications,

JUAN C. GAVIRIA VILLA; JOHNATAN M. CASTELBLANCO; LUZ M. OCAMPO CARMONA; SERGIO LOPERA

2009-01-01

433

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

434

Modificación de la función renal y la presión arterial inducida por antiinfla- matorios no esteroideos de uso odon- tológico en terapia de corto plazo  

Microsoft Academic Search

The aim of the study was to evaluate the possible modifications in the arterial pressure, corporal weigh and creatinine cleareance in urine gathered during 24 hours, in healthy young people, under therapy with two non steroidal anti inflammatory drugs (NSAID's); one of them not selective to Ciclooxigenase (Ibuprofen) and a selective inhibitor of Ciclooxigenase - 2 (Celecoxib), during three days

Miguel Óscar; Rodríguez Alfaro; Manuel Chumpitaz Cerrate; Jonny Burga Sánchez; Roger López Bellido; Jorge Arturo; Ramón Rosales; Roberto Carlos; Varas Hilario; Juan Manuel Zegarra

435

Diferenças sexuais no desenvolvimento da preocupação moral por outras pessoas: um estudo empírico da expressão de emoções morais em crianças1  

Microsoft Academic Search

This study investigated gender and age differences in children's feelings of guilt and personal responsibility towards other people's distress. Forty-eight children, aged between seven and eleven years, were randomly recruited from a state school in Kent, England. Children were presented with sets of cartoon stories depicting a variety of open-ended moral dilemmas. They were then asked to recount the story

Heliane de Almeida; Lins Leitão

436

Caracterización de medios de crecimiento compuestos por corteza de pino y aserrín Growth media characterization based on pine bark and sawdust  

Microsoft Academic Search

Forest nursery production in containers in México mainly uses peat moss, vermiculite and agrolite (standard mixture). Sawdust and pine bark are subproducts of the forest industry which can be used as subs- trates. The objective of this work was the characterization of five mixtures using pine bark, sawdust, peat moss, vermiculite. Evaluation included physical (bulk density, total porosity, air porosity

ARTÍCULO DE INVESTIGACIÓN; Tito Sánchez-Córdova; Arnulfo Aldrete; Víctor M. Cetina-Alcalá; Javier López-Upton

2008-01-01

437

Efectos antidiabéticos de liposomas cargados con glibenclamida en ratas con diabetes inducida por alloxan Antidiabetic Activity of Glibenclamide Loaded Liposomes in Alloxan Induced Diabetic Rats  

Microsoft Academic Search

The antidiabetic activity of Glibenclamide loaded liposomes was investigated in model of alloxan-induced diabetes in rats. The blood glucose level was measured at 0 h and 1, 2, 4, 6, 8, 10, 12, 14 and 16h after the treatment. The alloxan - diabetic rats showed signifi cant reduction in blood glucose level, after treatment with Glibenclamide loaded liposomes and orally

SINGH M; GUPTA A; YADAV S; RAMASAMY M

438

ESTIMATIVA DO EFLUXO DE CO2 DO SOLO, POR MEIO DE REGRESSÃO MÚLTIPLA, PARA FLORESTA DE TRANSIÇÃO NO NOROESTE DE MATO GROSSO  

Microsoft Academic Search

Many research groups have being studying the contribution of tropical forests to the global carbon cycle, and the climatic consequences of substituting the forests for pastures. Considering that soil CO2 efflux is the greater component of the carbon cycle of the biosphere, this work found an equation for estimating the soil CO2 efflux of an area of the Transition Forest,

Carla Maria Abido Valentini; Mariano Martínez Espinosa; Sérgio Roberto de Paulo

2008-01-01

439

Estimativa de produtividade de cana-de-açúcar ( Saccharum officinarum L.) por meio de técnica de análise de regressão linear múltipla  

Microsoft Academic Search

Crop yield estimation methods using GIS and remote sensing techniques have been developed mainly during the last decade, but have not yet been used to support operational agriculture statistics. The aim of this work is to estimate sugarcane ( Saccharum officinarum L.) yield using a multiple linear regression model. The study was carried out over two growing seasons from 2004\\/2005

Luciana Miura Sugawara

440

Use of medicinal plants among patients with diabetes mellitus type 2 in Morelos, Mexico (Uso de plantas medicinales por pacientes con diabetes mellitus tipo 2 en Morelos, México)  

Microsoft Academic Search

The aim of the study was the identification of the most frequently used plants by patients with DM2 with access to public health services in Morelos, Mexico. A questionnaire was employed with 259 patients with DM2 who regularly utilize medicinal plants as a complementary therapy, and another 259 patients who only use the pharmaceutical prescription in primary-care clinics from two

Ofelia ROMERO-CERECERO; Hortensia REYES-MORALES; Lucía AGUILAR-SANTAMARÍA; Maira HUERTA-REYES; Jaime TORTORIELLO-GARCIA

441

Curva de calibracion en espectrometros de germanio a partir de disoluciones calibradas por centelleo liquido. (Calibration curve for germanium spectrometers from solutions calibrated by liquid scintillation counting).  

National Technical Information Service (NTIS)

The beta-gamma emitters ''60Co, ''137 Cs, ''131 I, ''210 Pb y ''129 I are radionuclides for which the calibration by the CIEMAT/NIST method is possible with uncertainties less than 1%. We prepared, from standardized solutions of these radionuclides, sampl...

A. Grau N. Navarro L. Rodriguez A. Alvarez S. Salvador

1996-01-01

442

Resultados de un programa mixto de implantación de prótesis aórtica por vía transfemoral con los dispositivos de Edwards y CoreValve  

Microsoft Academic Search

Introduction and objectivesTransfemoral implantation of an Edwards SAPIEN (ES) or Medtronic CoreValve (MCV) aortic valve prosthesis is an alternative to surgical replacement for patients with severe aortic stenosis and a high surgical risk. The study's aim was to compare results obtained with these two devices.

Rosa Ana Hernández-Antolín; Eulogio García; Santiago Sandoval; Carlos Almería; Ana Cuadrado; Javier Serrano; Eduardo de Obeso; Raquel del Valle; Camino Bañuelos; Fernando Alfonso; Fernando Guerrero; Jerónimo Heredia; Juan Carlos Martín Benítez; Juan Carlos García-Rubira; Enrique Rodríguez; Carlos Macaya

2011-01-01

443

VIABILIDADE TÉCNICA E ECONÔMICA DA SUBSTITUIÇÃO DE FONTES CONVENCIONAIS DE ENERGIA POR BIOGÁS EM ASSENTAMENTO RURAL DO ESTADO DE SÃO PAULO1  

Microsoft Academic Search

The aim of this work was to evaluate the economic feasibility of two biodigestion systems using animal excrements in a rural settlement, in Itaberá - SP, Brazil, in the year of 2005. One of them was constructed to supply biogas for five residences. The other one was constructed to supply biogas for production activities. The generated benefits related to the

MAURA S. T. ESPERANCINI; FERNANDO COLEN; OSMAR DE C. BUENO; ANDRÉA E. B. PIMENTEL; ELIAS J. SIMON

444

PREFERENCIA DE ÁRBOLES FORRAJEROS POR CABRAS EN LA ZONA BAJA DE LOS ANDES VENEZOLANOS. Goats Preference of Fodder Tree in the Venezuelan Andes Low Zone  

Microsoft Academic Search

In order to know the preference of twelve fodder species (Chlo- rophora tinctoria, Morus alba, Pithecellobium pedicellare, Gliri- cidia sepium, Guazuma ulmifolia, Cordia alba, Trichantera gi- gantea, Tithonia diversifolia, Leucaena leucocephala, Moringa oleifera, Azadirachta indica and Samanea saman) a cafeteria trial was carried out in goats at Trujillo State, Venezuela. An ex- perimental square latin design with evaluation period of

Danny Eugenio García; María Gabriela Medina; Tyrone Clavero; Johny Humbría; Alfredo Baldizán; Carlos Domínguez

2008-01-01

445

Pesquisa Etnográfica em Saúde: Sua apreciação por Comitês de Ética em Pesquisa Ethnographic Research in Healthcare: Examination by Research Ethics Committees  

Microsoft Academic Search

This documentary and bibliographic survey discusses the demands imposed on researchers when ethnographic projects focused on healthcare are examined by Research Ethics Committees. These assessments are conducted without taking the specific characteristics of ethnographic studies into consideration, requiring sample size definition, with descriptions of hypotheses to be tested and data collection tools, including questions to be asked during interviews. Descriptions

Silva Carvalho Vila; Lídia Aparecida Rossi; Maria Cristina Silva Costa; Márcia Maria Fontão Zago

446

Modificación de los parámetros inmunitarios hemolinfáticos en el ostión del norte (Argopecten purpuratus Lamarck, 1819) afectados por el cuadro de retracción del manto  

Microsoft Academic Search

The scallop Argopecten purpuratus is characterized by variations in some immunity parameters of the hemolymph when faced with the pathology known as mantle retraction. A relationship between the hemocytic reaction of encapsulation and this pathology was established with light and electronic transmission microscopy. The quantita- tive comparison of the number of hemocytes, the phagocytic capacity of these cells in the

Marcelo González; Gloria Arenas

2007-01-01

447

QUALIDADE PÓS-COLHEIT A DE BANANA PRATA TRATADA POR HIDROTERMIA Postharvest quality of Prata banana as affected by hot water treatment  

Microsoft Academic Search

Postharvest rots are among the most serious problems for banana commercialization and can be controlled by immersion of the fruits in hot water. The aim of this work was to study the influence of hot water treatments on the postharvest quality of Prata banana. Temperatures of 47, 50, 53 and 56 ºC were tested, under immersion for 0, 3, 6,

Claudio de Azevedo Nolasco; Luiz Carlos Chamhum Salomão; Paulo Roberto Cecon; Claudio Horst Bruckner; Aline Rocha

448

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

449

Ressonancia paramagnetica eletronica dos radicais livres induzidos por raios-X em pireno. (Electronic Paramagnetic Resonance (EPR) of free radicals induced by X-rays in pyrene).  

National Technical Information Service (NTIS)

Pyrene single crystals C(sub 16)H(sub 10), irradiated by X-rays, at room temperature, were studied by EPR technique, to determine free radicals formed by radiation. The angular dependence of EPR spectra was explained by the presence of two kinds of radica...

C. S. Moya Partiti

1982-01-01

450

Obtenção de mutantes de Aspergillus carbonarius via transformação genética mediada por Agrobacterium tumefaciens Generation of Aspergillus carbonarius mutants by Agrobacterium tumefaciens-mediated transformation method  

Microsoft Academic Search

Aspergillus carbonarius is a potent ochratoxin A producer , a mycotoxin that has nephrotoxic and carcinogenic effects. The knowledge of genes involved in biosynthesis of this toxin may be useful for the development of detection and control methods. The Agrobacterium tumefaciens-mediated transformation method has been demonstrated as a powerful tool to obtain insertional mutants for the characterization of new genes.

Lígia Uno Lunardi; Carla Beatriz Fier; Fernando Yuldi Ashikaga; Luiz Rodrigo Morioka; Maria Helena Pelegrinelli Fungaro

451

In vitro susceptibility of two tropical Acacia species to Agrobacterium tumefaciens Suscetibilidade ‡ infecÁªo por Agrobacterium tumefaciens de duas espØcies tropicais de Acacia in vitro  

Microsoft Academic Search

Acacia mangium and A. mearnsii are leguminous N-fixing trees which can be used for afforestation of degraded soils. The application of modern techniques of genetic transformation to such species should allow some traits, like insect resistance, to be improved, or to modify lignin metabolism. In order to establish an efficient transformation system for these species, ten wild strains of Agrobacterium

Marguerite Quoirin; Wilhelm E. Hagiwara; Flávio Zanette; Dulce E. de Oliveira

452

Modelado por elementos finitos de situaciones de incendio en contenedores para el transporte de UF6. (Finite element modelling of fire situations in UF6 transport containers).  

National Technical Information Service (NTIS)

In this report we describe some runs made with the code FASES2. They concern different situations associated to fires originated by accidents in the transport of containers filled with UF6. Such situations have been inspired in cases taken from the curren...

F. G. Basombrio

1996-01-01

453

Producción de enzimas lignolíticas por Basidiomycetes mediante la técnica de fermentación en sustrato sólido Solid substrate fermentation for lignolytic enzyme production using Basidiomycetes  

Microsoft Academic Search

Solid substrate fermentation has wide industrial application; nowadays enzymes are mainly used in obtaining dairy products, sweeteners, drugs, food, liquor, detergent, etc. Lignin is enzymatically degraded by Basidiomycetes fungi through the non-specific oxidation of three different types of enzymes: laccase, manganese-peroxidase and lignin-peroxidase. Their non-specificity is most important in degrading different recalcitrant substances showing structural similarity with lignin, such as

Angélica María; García Torres; Rodrigo Gonzalo Torres Sáe

2003-01-01

454

Interpretação das características espectrais de emissividade de minerais e plantas no infravermelho termal (2,5 a 14 µm) por comparação com refletância total atenuada  

Microsoft Academic Search

This work interprets spectra measured with directional hemispherical reflectance (DHR) using attenuated total reflectance (ATR) to observe what kind of information from transmission spectra can be retained in emissivity spectra. A small amount of a component in a sample, as a thin layer of a mineral with small particle size exhibits emissivity features similar to transmission features; but, when the

Beatriz Ribeiro da Luz

455

Potencial carcinogênico do açafrão (Curcuma longa L.) identificado por meio do teste para detecção de clones de tumor em Drosophila melanogaster  

Microsoft Academic Search

The saffron (Curcuma long Linn) is a herbaceous perennial, rizomatosa, belonging to the family Zingibe- raceae and classified as condimental plant. The curcumina is the main dye present in the cúrcuma rhi- zomes. Besides being used as a dye and condiment, it presents antioxidants and antimicrobial sub- stances, which bring to it the possibility of employment in the fields of

Priscila Capelari Orsolin; Júlio César Nepomuceno

456

CONSUMO DE NUTRIMENTOS POR LOS FRUTOS Y BANDOLAS DE CAFE CATURRA DURANTE UN CICLO DE DESARROLLO Y MADURACION EN AQUIARES, TURRIALBA, COSTA RICA 1  

Microsoft Academic Search

Con el fin de detenninar las etapas de ab- Nutrient consumption by Caturra co- sorci6n mas importantes durante el periodo de tYee fruits and fruit-bearing branches during llenado del fruto de cafe, con miras a mejorar el a cycle of development and maturation in suplemento de nutrimentos via fertilizaci6n fo- Aquiares, Thrrialba, Costa Rica. A curve of liar, se elabor6

Floria Ram; Floria Bertsch; Luis Mora

457

CARACTERIZACIÓN DE LAS COMUNIDADES VEGETALES EN UN ÁREA AFECTADA POR DERRAMES DE HIDROCARBUROS Characterization of Plant Communities in an Area Affected by Hydrocarbon Spill  

Microsoft Academic Search

SUMMARY The petroleum industry development in the Mexican southeast has caused pollution of its environment due to oil spills, which affect several components of the ecosystems where its infrastructure is located. At present, methods to evaluate the botanic quality of polluted areas are being developed in a specific level or considering the whole ecosystem. The objective of this study was

Eustolia García-López; Joel Zavala-Cruz; David J. Palma-López

2005-01-01

458

Medida de los descendientes del radon en aire por espectrometria alfa. (Measurement of radon daughters in air samples by alpha spectroscopy).  

National Technical Information Service (NTIS)

The concentration of radon progeny in air has been determined by alpha spectrometry measurement of polonium 214 and polonium 218. A known volume of air was passed through a filter, then the alpha activity was directly measured on this filter (Author). (At...

M. L. Acena M. T. Crespo

1989-01-01

459

PARTICIPACIÓN DE MADRES\\/PADRES EN EL CUIDADO DEL NIÑO PREMATURO EN LA UNIDAD NEONATAL: SIGNIFICADOS ATRIBUIDOS POR EL EQUIPO DE SALUD 1  

Microsoft Academic Search

This qualitative study aims to identify and analyze the meanings the health team attributes to the parents' participation in the care of premature children hospitalized at a public hospital. Data were recorded and collected through semi-structured interviews performed with 23 professionals. The results show that parents' participation in the care of these children is still in an initial stage at

Josefina Gallegos Martínez

460

ALTA DENSIDAD DE SIEMBRA EN LA PRODUCCIÓN DE MAÍZ CON IRRIGACIÓN POR GOTEO SUBSUPERFICIAL PRODUCTION OF MAIZE USING HIGH DENSITY SOWING AND SUBSURFACE DRIP IRRIGATION  

Microsoft Academic Search

Maize is the main staple food in the Mexican diet and is also the most important irrigated crop. However, water shortage is very serious in México, and food security cannot be maintained without irrigation. To address this problem, the effect of maize density sowing was evaluated using a subsurface drip irrigation system. There were no differences in forage and grain

Aurelio Guevara-Escobar; Gabriela Barcenas-Huante; Francisco R. Salazar-Martínez; Enrique González-Sosa; Humberto Suzán-Azpiri; Monsanto México

461

A PROPÓSITO DE LA ETIOLOGÍA BACTERIANA DE EPOC Y ASMA. INFECCIÓN POR Chlamydia pneumoniae Y ENFERMEDAD PULMONAR CRÓNICA: ¿RELACIÓN CAUSAL O EPIFENÓMENO?  

Microsoft Academic Search

Chlamydia pneumoniae is an intracellular bacteria involved in the development of acute respira- tory infections and in the physiopathology of chronic lung illnesses, specifi cally in COPD and adult asthma where it seems to play a role in their exacerbations. At the present time, there are diverse hypothesis being proposed to explain the relationship between the respiratory infections due to

LUIS EDUARDO PINO; Y GUSTAVO HINCAPIÉ; Servicio de Medicina Interna; División Médica

2008-01-01

462

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

463

INFECCIÓN POR Mycobacterium avium subsp. paratuberculosis EN UN REBAÑO CRIOLLO LIMONERO Mycobacterium avium subsp. paratuberculosis Infection in a Criollo Limonero Herd  

Microsoft Academic Search

The purpose of this research was to define, analyze and evalu- ate the situation of an elite Criollo Limonero herd related to bo- vine paratuberculosis. The investigation was carried out using the epidemiological variables and samples analysis (milk and serum) through a commercial enzyme immunoassay (ELISA). The results of the above test were taken as a foundation to use other

Alfredo Sánchez-Villalobos; Nailet Arráiz-Rodríguez; Luis Becerra-Ramírez; Nelba Faria; Merilio Montero-Urdaneta; Ana Oviedo-Bustos; Sunny A. Zambrano-Nava; Julio Boscán-Ocando; Gladys Molero-Saras; Disney Pino-Ramírez

464

DETECTION OF GENETICALLY MODIFIED MAIZE FOOD PRODUCTS BY THE POLYMERASE CHAIN REACTION DETECCIÓN DE PRODUCTOS DE MAIZ GENETICAMENTE MODIFICADOS POR LA REACCIÓN EN CADENA DE LA POLIMERASA  

Microsoft Academic Search

A polymerase chain reaction (PCR) was applied to detect genetically modified (GM) maize and soybean food product, using specific 35S promoter primers for inserted chimerical genes in maize or soybean. The PCR detected food products that include ingredients obtained from GMOs in maize grains and flour, as well as processed in foods such as tortillas (Mexican crepe), corn chips, corn

A. Mendoza; S. Fernández; M. A. Cruz; M. A. Rodríguez-Perez; D. Resendez-Perez; H. A. Barrera Saldaña

2006-01-01

465

Analisis multielemental por activacion neutronica de sedimentos del Golfo de Ana Maria. (Multielemental analysis by neutron activation of sediments in the Ana Maria Gulf, Cuba).  

National Technical Information Service (NTIS)

In this paper general samples of marine sediments taken from six control stations of the Ana Maria Gulf (Cuba) were analyzed. For this purpose the thermal neutron activation analysis method was used. 18 elements were determinated. They are: Al, Ce, Co, Cs...

O. Diaz Rizo D. Gandarias R. Calzavilla G. Garcia

1990-01-01

466

Automatizacion del proceso de medicion de analisis por activacion neutronica del laboratorio de analisis nuclear. (Automatization of the neutron activation analysis method in the nuclear analysis laboratory).  

National Technical Information Service (NTIS)

In the present paper the work done to automatice the Neutron Activation Analysis technic with a neutron generator is described. An interface between an IBM compatible microcomputer and the equipment in use to make this kind of measurement was developed. i...

N. R. Gonzalez Rivero M. A. Gonzalez F. Larramendi

1993-01-01

467

Modelación de episodios críticos de contaminación por material particulado (PM10) en Santiago de Chile. Comparación de la eficiencia predictiva de los modelos paramétricos y no paramétricos  

Microsoft Academic Search

ObjectiveTo evaluate the predictive efficiency of two statistical models (one parametric and the other non-parametric) to predict critical episodes of air pollution exceeding daily air quality standards in Santiago, Chile by using the next day PM10 maximum 24h value. Accurate prediction of such episodes would allow restrictive measures to be applied by health authorities to reduce their seriousness and protect

Sergio A. Alvarado; Claudio S. Silva; Dante D. Cáceres

468

Contamination by I-131 from Fall-out. Report No. 75; CONTAMINACION POR I¹³¹ DEBIDA AL FALL-OUT. INFORME NO. 75  

Microsoft Academic Search

The mean levels of I¹³¹ in the milk of Buenos Aires from the last ; of April to the last of July 1962 were determined, and the significance of the ; results was discussed. The results showed that from May 16 to the first days of ; July there was a detectable iodine activity in the milk. An estimation was

D. Benninson; E. Ramos

1962-01-01

469

Marcado general con tritio de la gentamicina C por intercambio catalitico con agua tritiada. (General Tritium labelling of gentamicin C by catalytic hydrogen exchange reaction with tritiated water).  

National Technical Information Service (NTIS)

Gentamicin C was labelled with tritium by means of a PtO(sub 2) catalyzed hydrogen exchange reaction. Under the conditions of the exchange (100 mg of gentamicin, basic form, 0,3 ml H(sub 2)O-(sup 3)H, and 50 mg of prereduced PtO(sub 2)) the radiochemical ...

C. Suarez D. Diaz

1991-01-01

470

Microcantidades de hafnio en circonio en filmes delgados por fluorescencia de Rayos X. (X-ray fluorescence of microquantities of hafnium in zirconium by precipitation as thin film).  

National Technical Information Service (NTIS)

The importance of Zr and Hf in the nuclear industry represents and increasing need for the development of reliable chemical methods to determine Hf traces in Zr matrix. A precipitation method in amoniacal medium was developed. A thin film is obtained wher...

D. Vigoda de Leyt A. F. Caridi J. Deibe

1988-01-01

471

Determinacion de uranio por columbimetria a potencial controlado con electrodo de platino. (Determination of uranium by controlled-potential coulometry with platinum electrode).  

National Technical Information Service (NTIS)

In this work it was investigated the process by which is possible to determine uranium by means of a controlled-potential coulometry with a platinum electrode, using a reversible method, in presence of Pu(III) or Fe(II), that permits to analyze uranium an...

M. R. Eppis P. Adelfang

1990-01-01

472

CARACTERÍSTICAS TECNOLÓGICAS DE F ARINHAS DE ARROZ PRÉ- GELATINIZADAS OBTIDAS POR EXTRUSÃO TERMOPLÁSTICA Technological properties of pre-gelatinized rice flour obtained by thermoplastic extrusion  

Microsoft Academic Search

o C e a 50 o C foram maiores quando temperatura e umidade estavam em extremos opostos. O IAA foi menor quando se usaram baixas temperaturas e maiores teores de umidades; no entanto, o ISA, quando analisado pela MRS, não apresentou influência da temperatura e umidade, mas quando analisado pela ACP, foi maior quando as temperaturas estavam entre 120 -

Maria Teresa Pedrosa; Silva Clerici; Ahmed Attia El-Dash

473

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.

474

Asociación del índice de resistencia a la insulina con niveles de cortisol y medidas antropométricas por género de niños mexicanos en edad escolar  

Microsoft Academic Search

Introduction: Diabetes mellitus and cardiovascular di- sease represent some of the most important public health problems in the world. In Mexico, they are the foremost mortality causes in general population. In addition, it is widely documented that obesity is one of the main factor associated with diabetes mellitus and cardiovascular di- sease, and cases of obesity among children are increasing.

Jesús Eduardo Méndez-Castillo; Jorge Flores-Sánchez; Daniel E Noyola; Esperanza de la Cruz-Mendoza; Jacqueline Calderón-Hernández; Celia Aradillas-García

2007-01-01

475

Avaliação da Qualidade de Vida em Pacientes com Fibrilação Atrial Submetidos à Ablação por Cateter Quality of Life in Patients with Atrial Fibrillation Subjected to Catheter Ablation  

Microsoft Academic Search

Objective: To assess the quality of life in 25 patients with atrial fibrillation after catheter ablation. Methods: Two questionnaires were completed. One was the more general Short Form SF-36 Health Survey Questionnaire that assesses the quality of life through eight aspects, scored from 0 to 100, with higher scores reflecting a better quality of life. The other was the more

Lutgarde Magda; Suzanne Vanheusden; Deyse Conceição Santoro; Erika Olivier Bragança; Marcio Luis Alves Fagundes; Bernardo Rangel Tura; Leonardo Bandeira Arantes; Maila Seifert; Macedo Silva; Adriana Monteiro; Correa David; Roberto Menssing da Silva; Fernando Eugênio dos Santos; Cruz Filho

476

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

477

Estudio retrospectivo de las denuncias por malpraxis* médica en la provincia de Málaga. Retrospective study of medical malpractice suits in the province of Malaga (Spain)  

Microsoft Academic Search

Suits against doctors are now more frequent than ever. A situation that was almost anecdotic some years ago have become very common nowadays. The aim of this study is to compile main data which, from our point of view, are more relevant of the obtained from the files of the Institute of Legal Medicine of Malaga (Spain) related to the

F. Álvarez González; E. Hidalgo Salvador; D. Sánchez del Castillo; H. García Pérez

478

Efeito tópico de iodo-povidona 0,5% comparado com natamicina 5% em ceratites fúngicas causadas por Fusarium solani em um modelo animal de coelhos: estudo piloto  

Microsoft Academic Search

Purpose: To evaluate the efficacy of topical administration of 0.5% povidone-iodine in experimental Fusarium solani keratitis in rabbits. Methods: Fungal keratitis caused by Fusarium solani was induced in the right eye of 24 New Zealand rabbits. The rabbits were randomly divided into 3 different treatment groups: Group I (povidone-iodine) - treated with topical 0.5% povidone-iodine; Group II (natamycin) - treated

Lauro Augusto de Oliveira; Thales Takeo Takata; Olga Fischman Gompertz; Luciene Barbosa de Sous; Mark J. Mannis

479

Rerradiacao por Corpos Condutores de Geometria Arbitraria na Regiao de Ressonancia (Scattering by Arbitrary Shape Conducting Bodies in the Resonance Region).  

National Technical Information Service (NTIS)

The scattering of plane electromagnetic waves by arbitrarily shaped perfectly conducting bodies in the resonance region is analyzed in the thesis. The Method of Moments, with a triangular patch basis function formulation, is used to solve several integral...

L. M. de Jesus Sousa Correia

1990-01-01

480

Aglomerante puzolánico formado por cal y ceniza de paja de caña de azúcar: la influencia granulométrica de sus componentes en la actividad aglomerante  

Microsoft Academic Search

The present study carried out a characterization of the components of a binary blend comprised of lime-cane sugar straw ash by means of the analytic techniques of ray-x diffraction, chemical, and granulometric analysis. The evolution of the setting process of this binary blend was assessed, and it appears as an alternative mineral active addition to cement. The statistical parameters of

Lesday Martínez Fernández; Rafael Quintana Puchol; José Fernando Martirena Hernández

481

Una revisión de los beneficios del aporte complementario de nutrientes durante el embarazo: desde hierro y ácido fólico hasta probióticos pasando por ácidos grasos poliinsaturados de cadena larga  

Microsoft Academic Search

ResumenEn esta revisión se resume el conocimiento actual sobre la eficacia de los aportes complementarios prenatales de nutrientes, desde hierro y ácido fólico (HAF), que representan el patrón asistencial en muchas partes del mundo, hasta los más novedosos como ácidos grasos ?–3 y probióticos, en la mejora de los desenlaces del estado de salud materno-infantil. En ensayos aleatorios controlados se

Usha Ramakrishnan

2010-01-01

482

EFECTO RESIDUAL DE LA ROCA FOSFÓRICA DE RIECITO MODIFICADA POR CALCINACIÓN O ACIDULACIÓN SOBRE PLANTAS DE MAÍZ EN SUELOS CON NIVEL VARIABLE DE CALCIO1  

Microsoft Academic Search

Residual effect of acidulated or burnt Riecito phosphoric rock on maize grown in soils with variable levels of calcium With the purpose of evaluating the residual effect of phosphoric rock from Riecito (Venezuela) treated with vinaza or high temperatures, three successive crops of corn, used as indicative plant, were grown in an acid soil (pH 3.7) whitewashed up to pH

Shirley M. Fernández; Carlos A. Meza

2004-01-01

483

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

484

Estudio de zeolitas de hierro por el efecto Moessbauer y la resonancia paramagnetica electronica. (Study of iron exchanged zeolites by Moessbauer effect and electron spin resonance spectroscopy).  

National Technical Information Service (NTIS)

Crystalline iron exchanged NaY zeolites, prepared from aqueous solutions and calcined at atmospheric conditions, have been studied and characterized by XRD, Moessbauer and EPR spectroscopies and TGA analysis. Three iron sites are clearly distinguished fro...

C. E. Aguirre Campuzano

1993-01-01

485

Investigacion de nuevos compuestos para su aplicacion en dosimetria de radicales libres por resonancia paramagnetica electronica. (Study of new compounds for their application on free radicals EPR dosimetry).  

National Technical Information Service (NTIS)

L- (alpha) alanine is an amino acid which has been used for electron and (gamma) ray dosimetric purposes, when crystallites of L-(alpha) alanine are irradiated with ionizing radiation free radicals are produced. The yield of free radicals produced by irra...

C. S. Condes

1996-01-01

486

Otimização de método para determinação de flavonóis e flavonas em frutas por cromatografia líquida de alta eficiência utilizando delineamento estatístico e análise de superfície de resposta  

Microsoft Academic Search

hydrolysis\\/extraction of these flavonoids in fruits, using the statistical central composite design and response surface analysis. A reverse phase method was developed using a gradient of methanol\\/water acidified with 0.3% formic acid as mobile phase and a photodiode array detector. The samples were extracted with methanol\\/water (50:50 v\\/v) at 90 ºC. The optimum time and HCl concentration varied for the

Rosemary Hoffmann-Ribani; Delia B. Rodriguez-Amaya

2008-01-01

487

Padronizacao da dosagem de diidrotestosterona por radioimunoensaio apos cromatografia em coluna de celite. (Measurement of dihydro testosterone by radioimmunoassay after celite column chromatography).  

National Technical Information Service (NTIS)

A method for measuring dihydro testosterone after celite column chromatography is developed. One milliliter of serum containing 1000 cpm of tritiated dihydro testosterone was extracted with hexane: ethyl acetate (2:3): dried, diluted with non saturated is...

V. S. Lando

1992-01-01

488

ANÁLISE POR CROMATOGRAFIA GASOSA DE BTEX NAS EMISSÕES DE MOTOR DE COMBUSTÃO INTER NA ALIMENTADO COM DIESEL E MISTURA DIESEL-BIODIESEL (B10)  

Microsoft Academic Search

ANALYSIS OF BTEX IN THE EMISSIONS FROM AN INTERNAL COMBUSTION ENGINE BURNING DIESEL OIL AND DIESEL-BIODIESEL MIXTURE (B10) BY GAS CHROMATOGRAPHY. This paper describes the procedures for analysing pollutant gases emitted by engines, such as volatile organic compounds (benzene, toluene, ethylbenzene, o-xylene, m-xylene and p-xylene) by using high resolution gas chromatography (HRGC). For IC engine burning, in a broad sense,

Sérgio L. Ferreira; Antônio M. dos Santos; Gustavo R. de Souza; Wagner L. Polito; Délson L. Módolo; Fundação Hermínio Ometto; Maximiliano Baruto

2008-01-01

489

Determinación de la excreción total de alantoína en suero de leche por Cromatografía Líquida de Alta Eficiencia (HPLC) en vacas Holstein alimentadas con pasto Kikuyo (Pennisetum clandestinum )  

Microsoft Academic Search

A B S T R A C T Title: Determination of allantoin excre- tion by High Performance Liquid Chromatography (HPLC) in milk serum from Holstein cows fed kikuyu grass (Pennisetum clandestinum). An experiment was carried out to deter- mine allantoin excretion in late lactation dairy cows, using tree multiparous (four lactations or more) Holstein cows, fed exclusively on kikuyu grass

Luis C. Arreaza; Hugo R. Jiménez; Dora E. Sánchez; Leonardo Sánchez

490

Determinación de residuos de siete insecticidas organofosforados en frutas mediante cromatografía de gases con detector de nitrógeno- fósforo y confirmación por espectrometría de masas  

Microsoft Academic Search

Residue analysis of seven organophosphorous insecticides in fruit by GC\\/NPD and confirmation by mass spectrometry. The presence of seven organophosphate residues has been studied in apples and pears acquired from the market in León (Spain). An extraction system for aqueous matrixes and a multiresidue analysis based on gas chromatography (GC) with nitrogen phosphorous detection (NPD) have been used. Positive samples

Calonge M; Pérez-Pertejo Y; Ordóñez C; Reguera RM; Balaña-Fouce R; Ordóñez D

2002-01-01

491

Preparacion por descarga luminiscente y caracterizacion electrooptica de aleaciones de silicio amorfo para celulas solares. (Glow discharge preparation and electrooptical characterisation of amorphous silicon alloys for solar cells).  

National Technical Information Service (NTIS)

A study is presented, focused on the preparation and characterisation of hydrogenated amorphous silicon alloy thin films for their application as p type window layers in pin silicon solar cells. The preparation technique used was radio frequency glow disc...

J. Carabe

1990-01-01

492

Caracterização da vegetação no município de Marabá, no estado do Pará, através de dados e transformações espectrais (Índice de Vegetação por Diferença Normalizada) do sensor ETM+ \\/ Landsat 7  

Microsoft Academic Search

The objective of this work is to evaluate the spectral response of several vegetation physiognomies in the municipality of Maraba, Para, in relation to the reflectance in Landsat -7 ETM+ and to NDVI (\\

Adriana Gomes Affonso; Dalton de Morrison Valeriano; Getúlio Teixeira Batista

2005-01-01

493

Cs-137 en leche procedente de Lituania. Dosis en infantes por ingestion. (Cs-137 in milk produced in Lithuania. Dose in infants by ingestion).  

National Technical Information Service (NTIS)

The Chernobyl accident caused a wide dispersion of radionuclides over extended in Europe. Cuba received a shipment of evaporated, milk produced in Lithuania to feed infants in Havana. Taking into account the origin and the final use of the mentioned produ...

S. F. Jerez Vegueria I. Frometa Suarez

1997-01-01

494

Analisis de leche en polvo por PIXE (Proton induced X-ray emission). (Analysis of powdered milk by PIXE (Proton Induced X-ray Emission)).  

National Technical Information Service (NTIS)

The purpose of this work was to establish the conditions to analyze elements of Z>15 in powdered milk samples using the PIXE technique. Ten different commercial samples were analyzed: 2 full-cream, 3 half-cream and 5 for infant feeding. They were all purc...

G. Desales Galeana

1990-01-01

495

AUMENTO DE LA RESISTENCIA A LA DEGRADACIÓN POR ENVEJECIMIENTO A BAJAS TEMPERATURAS DE Y-TZP MEDIANTE CAPAS SUPERFICIALES NO TRANSFORMABLES  

Microsoft Academic Search

It has been investigated the resistance to low temperature ageing of 2.5Y-TZP, as well as of the this material after surface modification by heat treatments at 1650 ºC in a nitrogen atmosphere and in contact with ZrN, or AlN powder. From both treatments a surface layer results, although by different mechanisms: (i) significant diffusion of nitrogen ions in a surface

A. Feder; P. Morcillo; M. Anglada

496

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

497

Análise do Padrão de Marcação da NADPH diaforase na Área Somestésica Primária (SI) de Ratos Adultos Submetidos à Intoxicação por Metilmercúrio (MeHg)  

Microsoft Academic Search

Mercury (Hg) is a heavy metal that has known toxic effects on the human central nervous system. However, mercury is still used in the amazon region as part of processes related to gold extraction. The dejects resulting of these processes are simply discarded on the rivers of that region. The continued use of mercury in this region is a dramatic

Marco Aurélio de Moura Freire; Walace Gomes Leal; Antônio Pereira Jr; Cristovam Wanderley

2001-01-01

498

Numerical Method for Solving by Approximation an Advanced Integro-Differential Equation Um Metodo Numerico Para Resolucao Por Aproximacao de Uma Equacao Integro-Diferencial de Argumento Avancado.  

National Technical Information Service (NTIS)

Optimally exploring and consuming a nonrenewable natural resource in the presence of uncertainties are addressed. Deshmukh and Pliska proved that the objective function, and the expected utility value of consumption minus the exploration costs, discounted...

A. Z. Milioni P. R. Demorais

1983-01-01

499

Un asteroide proveniente de la Luna  

NASA Astrophysics Data System (ADS)

El descubrimiento de un débil objeto en movimiento por el telescopio Spacewatch (un instrumento dedicado a la búsqueda de Asteroides Cercanos a la Tierra) en 1991, ha generado una gran controversia en la comunidad planetaria. El objeto, denominado 1991 VG, tiene elementos orbitales llamativamente similares a los de la Tierra, lo que ha llevado a B. G. Marsden a aventurar:``El objeto podría ser una nave espacial en retorno (IAUC 5387)". Luego de analizar las características dinámicas de 1991 VG y las diferentes hipótesis sobre su origen, favorecemos la alternativa de que el objeto es un gran fragmento de material eyectado de la Luna durante un reciente impacto (en las últimas decenas de miles de años). El hallazgo en 1983 en la Antártida de meteoritos con composición tipo lunar, confirma la posibilidad de que material de la superficie del satélite puede ser eyectado a velocidades superiores a la de escape del sistema Tierra-Luna y alcance órbitas heliocéntricas. Los elementos orbitales de 1991 VG corresponden a los valores alcanzados por partículas que apenas escapan de la gravedad lunar y entran en órbitas heliocéntricas a través del punto Lagrangiano exterior del sistema Tierra-Sol.

Tancredi, G.

500

Estudio multiespectral del remanente de supernova W 28  

NASA Astrophysics Data System (ADS)

Se presentan observaciones en continuo de radio con muy alta resolución angular y sensibilidad del remanente de supernova (RSN) W28. Las observaciones fueron realizadas con el interferómetro Very Large Array (Estados Unidos), en las configuraciones C y D, en 1415 y 324 MHz. Por la gran extensión de este remanente (diámetro ~ 1o), las observaciones en 1415 MHz se realizaron en modo mosaico, combinando 48 apuntamientos diferentes en una única imagen. En ambas frecuencias los datos se procesaron con el agregado de observaciones de menor resolución angular, a fin de recuperar información en todas las frecuencias espaciales y obtener estimaciones precisas de densidad de flujo. Las imágenes resultantes muestran por primera vez la presencia de extensiones con forma de arco, cuya naturaleza se investiga. Las observaciones en radio se comparan con una imagen óptica de W28, y con la emisión en rayos X, observada con el satélite ROSAT. Este remanente muestra una clara morfología híbrida, tipo cáscara en frecuencias de radio y de centro lleno en las bandas óptica y de rayos X blandos.

Dubner, G.; Velázquez, P.; Castelletti, G.