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Sample records for agentes infecciosos relacionados

  1. Listeria monocytogenes: UM AGENTE INFECCIOSO AINDA POUCO CONHECIDO NO BRASIL

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    C. D. CRUZ

    2009-01-01

    Full Text Available

    Listeria monocytogenes é o agente infeccioso responsável pela doença de origem alimentar denominada listeriose. Apesar de baixa incidência, a listeriose representa importante risco à saúde pública, pelo grau de severidade das seqüelas e alto índice de mortalidade (20% a 30% que promove em populações de risco, como pacientes imunocomprometidos, idosos e gestantes. No Brasil e em outros países em desenvolvimento, além da falta de preocupação por parte das autoridades de saúde pública em relação à sua disseminação, não há estatísticas oficiais de casos de listeriose, pois sua notifi cação não é obrigatória. Considerando o aumento da incidência de L. monocytogenes no mundo todo, e a falta de informações atualizadas na língua portuguesa sobre o comportamento desta bactéria, sua prevalência, fatores de virulência e outros aspectos relevantes para a saúde pública, se elaborou esta revisão.

  2. Dairy cow abortion associated with Neospora caninum and other infectious agents Aborto em vacas leiteiras associado a Neospora caninum e a outros agentes infecciosos

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    A.P.M.E. Santos

    2005-08-01

    Full Text Available Trinta e cinco vacas de rebanhos leiteiros da região Norte do estado do Paraná, com histórico de abortamento, foram pesquisadas sorologicamente para verificar a presença de anticorpos contra Neospora caninum, Toxoplasma gondii, Leptospira spp., Brucella abortus, BHV-1 e BVDV. Vinte e uma vacas apresentaram títulos sorológicos compatíveis com infecção. Todas elas, soropositivas para N. caninum, foram também soropositivas para outros agentes infecciosos, sugerindo a possibilidade de associação desses agentes nos problemas reprodutivos de bovinos, no estado do Paraná.

  3. La infertilidad como manifestación clínica de la infección por Chlamydia y otros agentes infecciosos

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    Amparo Mirabal Fariñas

    2014-08-01

    Full Text Available Introducción: la infección por Chlamydia trachomatis es la enfermedad de transmisión sexual bacteriana más común a escala mundial. Prevalece en adolescentes de 15-19 años. Objetivos: identificar la presencia de Chlamydia trachomatis y su asociación con agentes infecciosos en parejas infértiles. Métodos: se realizó un estudio observacional, descriptivo de serie de casos de 390 mujeres en edad fértil, atendidas en la consulta de Sexología Clínica del Hospital Provincial Docente Clinicoquirúrgico "Saturnino Lora Torres" de Santiago de Cuba, desde febrero del 2011 hasta mayo del 2012. Resultados: esta enfermedad se presentó en 78,0 % de los casos. Predominaron el grupo etario de 20-24 años (21,0 %, los niveles de técnico medio y universitario (29,0 %, así como las mujeres casadas o acompañadas (39,0 %. El principal motivo de consulta fue la infertilidad (41,0 %, que en 29,0 % de las féminas estuvo relacionada con otros gérmenes. Conclusiones: la Chlamydia trachomatis afecta a las parejas independientemente de la edad, color de la piel y condiciones socioeconómicas; generalmente se asocia a otros agentes biológicos, produce serias complicaciones y deja secuelas a corto y largo plazo

  4. Malassezia pachydermatis e outros agentes infecciosos nas otites externas e dermatites em cães Malassezia pachydermatis and other infectious agents in external otitis and dermatitis in dogs

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    Márcia Nobre

    1998-09-01

    Full Text Available Malassezia pachydermatis (Pityrosporum canis faz parte da microbiota da pele e quando ocorrem alterações no microambiente local como aumento da umidade, da temperatura e do substrato, determinando uma elevação do número de células, ocorre a transição da forma comensal para o parasitismo. O objetivo deste trabalho foi determinar a prevalência da infeçâo por M. pachydermatis e outros agentes infecciosos nas otites externas e dermatites de cães. Foram analisadas 78 amostras de cães com otite, 36 amostras de cães com o conduto auditivo normal e 24 com dermatite. Todas as amostras foram submetidas ao exame direto. cultivo em ágar sangue e em ágar Sabouraud dextrose, acrescido de cloranfenicol e cicloheximida. Ao exame direto, 50% das amostras de otite e 16,6% das amostras de dermatite apresentaram numerosas células semelhante a M. pachydermatis, enquanto 83,3% das amostras de ouvidos saudáveis apresentaram ausência de células com esta morfologia. M. pachydermatis foi isolada em 25% das amostras do conduto auditivo normal, em 80,7% das amostras de otite e em 37,5% das amostras de dermatite. Foram também isolados das amostras de otite Staphylococcus intermédias, S. aureus, S. epidermidis, Pseudomonas aeruginosa, Proteus sp, Actinomyces sp, Streptococcus sp e Otodectes cynotis e das de dermatite Staphylococcus intermédias, S. áureas, S. epidermidis Microsporum canis, M. gypseum,. Trychophyton sp e Demodex canis. M. pachydermatis foi o agente com maior prevalência nas otites externas e dermatites, sendo um agente oportunista que causa otite e dermatite quando há uma alteração do microambiente.The Malassezia pachydermatis ( Pityrosporum canis is found in the whole skin microflora. It seems to occur as a consequence of changes in the local microenvironment, such as moist increase, temperature or substrate enhancement, generating a raising on cell quantity, which brings the transition from commensal form to parasitism. The

  5. Herpesvirus canino 1: agente etiológico y enfermedad

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    Galosi, Cecilia Mónica

    2007-01-01

    El herpesvirus canino 1 es un alphaherpesvirus del cual se describe un solo serotipo. Este virus fue aislado en varios paises y en Europa es enzoótico en la población canina. Es uno de los principales agentes infecciosos relacionados a lesiones vesiculares en mucosas genitales y es causante de desórdenes reproductivos en caninos tales como reabsorciones fetales, abortos y muertes perinatales. Participa ocasionalmente como causante de la denominada Tos de las Perreras. Epidemiológicamente revi...

  6. Analisando conhecimentos e práticas de agentes educacionais e professoras relacionados à alimentação infantil Analyzing knowledge and practices of educational agents and teachers regarding to feeding children up to 3 years-old

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    Andréia Cristina de Almeida Silva

    2010-01-01

    Full Text Available Objetivou-se identificar os conhecimentos e as práticas relacionados à alimentação de crianças entre zero e três anos, a fim de complementar a formação das profissionais que trabalham com crianças, na área da educação nutricional. O procedimento metodológico seguiu as orientações do estudo de caso, com abordagem qualitativa. Os saberes e as práticas das participantes do estudo foram analisados por meio de questões abertas e fechadas e das observações dos tópicos relacionados à nutrição infantil, juntamente com os dados sobre a formação dessas profissionais. Pode-se concluir que tanto as agentes educacionais quanto as professoras de Ensino Infantil são detentoras de um conhecimento sobre Nutrição Infantil, porém a preocupação maior destas foi atender as necessidades nutricionais das crianças por meio de uma boa alimentação, deixando, em segundo plano, as atividades pedagógicas, as quais poderiam ser realizadas em um programa de educação nutricional, construído coletivamente e inserido no projeto político-pedagógico da escola.This study aimed to identify the knowledge and practices that people have regarding 0 to 3 year-old children in order to add information for professionals who work with this age group of children in the Nutrition Education field. The methodological procedure followed a case study, with a qualitative approach. The sample studied was analyzed through questions and observations of topics related to infantile nutrition along with data about these professionals' educational degrees. The results show that both, educational agents and infant education teachers have a significant knowledge about infant nutrition. However their biggest concern was to supply the children's nutritional necessities through a healthy meal, leaving in a second place the activities that could be accomplished by a Nutritional Education Program, built collectively and introduced into the school.

  7. Etiologic diagnosis of bovine infectious abortion by PCR Diagnóstico etiológico de aborto infeccioso bovino por PCR

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    Teane Milagres Augusto da Silva

    2009-12-01

    Full Text Available Infectious abortion is a significant cause of reproductive failure and economic losses in cattle. The goal of this study was to detect nucleic acids of several infectious agents known to cause abortion including Arcanobacterium pyogenes, Bovine Herpesvirus 1, Brucella abortus, Campylobacter fetus subsp. venerealis, Chlamydophila abortus, Leptospira sp., Listeria monocytogenes, Salmonella sp., Mycoplasma bovis, Mycoplasma bovigenitalium, Neospora caninum, and Tritrichomonas foetus. Tissue homogenates from 42 fetuses and paraffin-embedded tissues from 28 fetuses and 14 placentas/endometrium were included in this study. Brucella abortus was detected in 14.2% (12/84 of the samples. Salmonella sp. DNA was amplified from 2 fetuses, and there was one positive for Neospora caninum, and another for Listeria monocytogenes. This PCR-based approach resulted in identification of the etiology in 19% of samples, or 20% if considered fetal tissues only.Aborto infeccioso é uma causa significativa de falhas reprodutivas e perdas econômicas na bovinocultura. O objetivo deste estudo foi detectar ácidos nucleicos de vários agentes infecciosos reconhecidos como causadores de aborto, incluindo-se Arcanobacterium pyogenes, Herpesvirus bovino tipo 1, Brucella abortus, Campylobacter fetus subsp. venerealis, Chlamydophila abortus, Leptospira sp., Listeria monocytogenes, Salmonella sp., Mycoplasma bovis, Mycoplasma bovigenitalium, Neospora caninum e Tritrichomonas foetus. Homogenados de tecidos de 42 fetos e tecidos incluídos em parafina de 28 fetos e 14 placentas/endométrio foram incluídos neste estudo. Brucella abortus foi detectada em 14,2% (12/84 das amostras. DNA de Salmonella sp. foi amplificado de dois fetos e houve um feto positivo para Neospora caninum e outro para Listeria monocytogenes. Essa metodologia baseada em PCR resultou na identificação da etiologia em 19% das amostras ou 20% se considerados somente os tecidos fetais.

  8. Alignment in the decision-making process between agents in biodiesel supply chains; Identificacao dos fatores e motivacoes relacionados ao processo de tomada de decisao dos diferentes agentes da cadeia produtiva do biodiesel do Rio Grande do Sul, Brazil

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    Rathmann, Regis; Santos, Omar Inacio Benedetti [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-Graduacao de Engenharia (COPPE). Programa de Planejamento Energetico; Padula, Antonio Domingos [Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil)

    2008-07-01

    The aim of the present study is to identify and analyze the factors, motivations and criteria being considered in the decision-making processes of the actors belonging to the biodiesel production chain in RS, and confirm or otherwise, the existence of alignment in the decision-making process. Interviews were carried out with the main agents of the links that comprise the biodiesel chains in RS: 11 agricultural co-operatives, 3 biodiesel production plants and a firm that processes and distributes diesel/biodiesel. With regard the decision-making process of the cooperatives, it is centered on the decision to offer, or otherwise, oil-bearing crops for the production of biodiesel. Their decisions emphasize operational and short-term aspects. In contrast, in the firms producing biodiesel, their decision to produce this fuel is associated with addition of one more product to their market portfolio, and is correlated with a long-term view and the search for economic efficiency. In these firms, the benefits of the tax incentives offered by the public policies strongly influence the decision regarding the alternative oil-bearing crops used in the production of biodiesel. In the distributor, it was seen that the decision-making process was guided by long-term strategies. The decision to mix biodiesel with diesel oil being related to the institutional aspect, whatever the legal obligation to mix the fuels may be. In summary, the results show the existence of different characteristics linked to the decision-making process and a significant lack of synchronicity in the aims and motivations of the agents decisions. This state of decisional mis-alignment, associated with the fragilities of public policy, leads to heightened uncertainty regarding the sustainability of the Brazilian biodiesel production program. (author)

  9. Higiene alimentaria para la prevención de trastornos digestivos infecciosos y por toxinas

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    G. Manuel Moreno, Dr.

    2010-09-01

    Full Text Available El principal factor que interviene en el origen y prevención de las enfermedades trasmitidas por los alimentos es la higiene alimentaria. Dichas enfermedades son causadas por la ingestión de alimentos o agua contaminados con microorganismos patógenos ocasionando una infección o por la ingestión de alimentos contaminados con toxinas. Los principales agentes involucrados son Escherichia Coli, Campylobacter, Salmonella, Shigella, Listeria Monocytogenes, Norovirus, virus Hepatitis A, Astrovirus, Rotavirus, y Virus Coxsackie. Toxinas producidas por hongos o por microflora marina y los contaminantes orgánicos persistentes pueden también causar serios problemas de salud. La inocuidad alimentaría ha tomado relevancia debido a una mayor exigencia por consumidores cada día más informados y por las demandas del comercio exterior. Medidas que aseguren una adecuada higiene alimentaría nos permitirá prevenir enfermedades, principalmente digestivas, causadas por variados agentes en los alimentos. Esto se logra por la implementación de las medidas propuestas por la Comisión Internacional conocida como Codex Alimentarius.

  10. Factores prenatales relacionados con la prematuridad

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    Guillermo Arias Macías

    2001-03-01

    Full Text Available Se estudiaron 130 madres y sus recién nacidos prematuros con su correspondiente grupo control, nacidos en el Hospital Ginecoobstétrico Provincial Docente "Justo Legón Padilla", de Pinar del Río, desde febrero hasta julio de 1998, con el objetivo de analizar algunos factores perinatales relacionados con la prematuridad. Se analizaron las variables: edad materna, paridad, peso al inicio del embarazo, talla materna, período intergenésico, edad gestacional, oligoamnios, hipertensión arterial materna y sexo del niño. Se demostró que la edad materna inferior a 17 años, la baja talla materna, el oligoamnio, la sepsis ovular y el período intergenésico de más de 5 años tuvieron resultados significativos para el nacimiento de pretérminos.130 mothers and their premature infants with their corresponding control group delivered at "Justo Legón Padilla" Provincial Gynecoobstetric Teaching Hospital, in Pinar del Río, from February to July, 1998, were studied aimed at analyzing some perinatal factors connected with prematurity. The following variables were analyzed: maternal age, parity, weight at the beginning of pregnancy, maternal height, intergenesic period, gestational age, oligohydramnios, maternal hypertension and sex of the child. It was proved that maternal age under 17, low maternal height, the oligohydramnios, vulvar sepsis and the intergenesic period of more than 5 years had significant results for the birth of preterm infants.

  11. El papel del médico de la familia en el control de los síndromes neurológicos infecciosos

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    Ibrahin Quintana Jardines

    1999-01-01

    Full Text Available En el presente trabajo se exponen las actividades que debe desarrollar el Médico y Enfermera de la Familia en el control de los Síndromes Neurológicos Infecciosos, destacándose, que en estos momentos en que se ha sobrepasado el período epidémico que provocó el meningococo en los últimos años, es necesario el abordaje de estas enfermedades fundamentalmente a través de las inmunizaciones contra el Haemophilus influenzae tipo b y el meningococo, el reforzamiento de las actividades de control de foco y la participación en las actividades de rehabilitación y evitación de las secuelas que estas entidades provocan.This paper presents the activities to be carried out by the family physician and nurse in order to control Infectious Neurological Syndromes, underlining that at these moments, when the epidemic period provoked by the meningococcus in the last years has been overcome, it is necessary to FACE these diseases mainly throug immunizations against Haemophilus influenzae type B and meningococcus, to reinforce those activities for focus control and to participate in activities for the rehabilitation and the prevention of the sequelae produced by these inities.

  12. ABORTO NO INFECCIOSO EN CAPRINOS

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    Francisco J. Pastor

    2006-10-01

    Full Text Available Las pérdidas por abortos constituyen la principal falla reproductiva de los caprinos en sistemas extensivos donde se presenta una restricción alimenticia durante la gestación. Los abortos en estas condiciones suelen presentarse en más de la mitad de las cabras gestantes. El alto número de abortos en cabras en condiciones de escasez de forraje obedece a la particular estrategia reproductiva de la cabra, la cual “responde” al estímulo del macho cabrío, aun con bajas reservas corporales de energía, y una vez gestante, la cabra continúa o suspende la preñez, según la disponibilidad de nutrientes. Bajo condiciones intensivas y en diversas áreas geográficas, se presenta una mayor ocurrencia de abortos en cabras lecheras de origen Europeo, en comparación com cabras no lecheras (nativas. En climas templados poco extremosos, las cabras lecheras son menos propensas a abortar durante las épocas más calurosas del año, en comparacióncon las épocas más frías. La ausencia de cuernos, una pobre condición corporal, la gestación de más de un feto y la deficiencia de magnesio, cobre y selenio son factores importantes de riesgo de abortos en caprinos. La deficiencia de fósforo provoca también el aborto en caprinos, aunque esto sólo se ha demostrado forzando artificialmente esta deficiencia. Se han documentado además abortos en cabras tratadas com antihelmínticos y en animales que han consumido algunas plantas de zonas áridas con fitotoxinas. PALABRAS-CHAVE: Condición corporal, desnutrición, edad, peso corporal, plantas tóxicas.

  13. Actitudes de estudiantes de enfermería mexicanos al manejar residuos peligrosos biologico infecciosos Atitudes de estudantes de enfermagem mexicanos ao manipular resíduos biológicos infecciosos perigosos Attitudes of students of nursing to handle mexican biological infectious hazardous waste

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    Micaela Olivos Rubio

    2008-09-01

    Full Text Available El manejo de residuos peligrosos biológico infecciosos es actualmente un problema para los estudiantes de enfermería como integrantes del equipo de salud debido a su capacidad para provocar enfermedades. El propósito fue identificar las actitudes como factor de riesgo para los estudiantes de Enfermería en el manejo de los Residuos Peligrosos Biológico Infeccioso. Estudio de tipo cuanti-cualitativo con enfoque descriptivo transversal observacional. La muestra la constituyeron 403 estudiantes de 1º,2º y 3er grado de la Facultad de Enfermería durante las prácticas clínicas realizadas en hospitales de la ciudad de Toluca México. Se aplicó al total de estudiantes una escala actitudinal tipo Likert, 25 entrevistas y 12 guías de observación. Teniendo como resultados con respecto a las actitudes que muestran los estudiantes durante sus prácticas clínicas la incertidumbre y temor de contraer alguna enfermedad infectocontagiosa, por no saber manejar estos residuos, indiferencia por no creer que existe riesgo, vergüenza a la crítica, coraje por sufrir accidentes con residuos, arrepentimiento por no realizar adecuadamente la clasificación.O manuseio de resíduos biológicos infecciosos é perigoso e é atualmente um problema para os estudantes de Enfermagem como membros da equipe de saúde, em razão da sua capacidade de provocar doenças. O propósito foi identificar as atitudes como fator de risco para os estudantes de Enfermagem no manuseio destes resíduos. Estudo do tipo quantiqualitativo, com enfoque descritivo, transversal e observacional. A amostra constituiu-se de 403 estudantes de 1º, 2º e 3º graus, da Faculdade de Enfermagem durante as práticas clínicas realizadas em hospitais da cidade de Toluca México. Aplicou-se a escala atitudinal, tipo Likert, ao total de estudantes, com 25 entrevistas e 12 roteiros de observação. Obteve-se como resultado que os estudantes nas práticas clínicas sofrem com a incerteza e o medo de

  14. Teletandem e episódios relacionados a cultura

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    João Antonio TELLES

    2015-12-01

    Full Text Available Teletandem é um contexto telecolaborativo de aprendizagem que envolve dois falantes nativos (ou competentes de diferentes línguas. Utilizando o Skype, cada participante faz papel de aluno por meia hora, falando e praticando a língua do seu parceiro. Este artigo enfoca a interação em teletandem entre dois estudantes universitários - uma brasileira e um estadunidense. Na primeira parte, sustentamos nossa pressuposição de que os participantes do teletandem compartilham informações acerca das respectivas culturas. Na segunda, apresentamos cinco dimensões do conceito de cultura, definimos aprendizagem cultural e propomos uma unidade de análise para interpretação dos dados - o episódio relacionado a cultura. Por fim, sugerimos diretrizes para futuras pesquisas relacionadas à aprendizagem de línguas e culturas em contextos colaborativos on-line.

  15. Prospective risk analysis of the anti-infective medication administration process Análisis prospectivo de riesgo del proceso de administración de medicamentos anti-infecciosos Análise prospectiva de risco do processo de administração de medicamentos anti-infecciosos

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    Ana Elisa Bauer de Camargo Silva

    2013-02-01

    Full Text Available OBJECTIVE: The objective of this study was to analyze the potential risks involved in the administration process of intravenous anti-infective medication at a medical clinic, using the Failure Mode and Effect Analysis. METHOD: This exploratory study was conducted at the medical clinic of a hospital in the State of Goiás. For data collection we convened a team comprised of six professionals involved in medication treatment: a doctor, nurse, nursing technician, pharmacist, a nursing and a risk manager. A total of 24 meetings were held, for a total of 56 hours. The data were transcribed into an electronic database within Microsoft Excel®, and the Xfmea4 software was used. RESULT: The results indicated 52 failure modes, 79 effects of failure, and 285 causes of failure. The causes were related to: the management of organizational processes, human resources, physical and material structure. A total of 298 actions for improvement were recommended for 215 causes of high and average priority, 81.9% of which were short-term priorities. The simulation of the impact of the proposed interventions revealed a 79.7% reduction of the high-priority failure modes. CONCLUSION: It was concluded that the study identified potential risks to patients and recommended proactive actions, of rapid application and low cost, evaluated positively in the reduction of risk of occurrence of avoidable incidents, increasing reliability and safety of the medication administration process. Studies like this demonstrate that, with the application of a method of risk analysis, nurses can effectively assist in preventing medication incidents.OBJETIVO: Este estudio objetivó analizar los riesgos potenciales de administración de medicamentos anti-infecciosos por vía endovenosa en una unidad de Clínica Médica, utilizando el Método de Análisis del Modo y Efecto de Falla. MÉTODO: De naturaleza exploratoria, se realizó en la Clínica Médica de un Hospital del Estado de Goi

  16. Aspectos claves relacionados con la gestión del e.Learning

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    Francisco Lupiáñez Villanueva

    Full Text Available La introducción y uso de las Tecnologías de la Información y la Comunicación, especialmente Internet, en el ámbito de la salud, la medicina y los sistemas sanitarios enfrenta a todos los agentes e instituciones ante numerosos retos. La educación y la formación, como actividades claves tanto de la sociedad de la información como de los sistemas sanitarios, también se ven afectadas por este proceso de cambio. La finalidad de este artículo es identificar y analizar algunos de los aspectos claves relacionados con la introducción de las TIC e Internet en el ámbito de la educación médica continuada desde el punto de vista organizacional. Esta visión nos permite combinar factores pedagógicos, tecnológicos y organizativos. Todos ellos necesarios a la hora de abordar las complejas interacciones que se producen en la implantación de un proyecto de e.Learning.

  17. Aspectos claves relacionados con la gestión del e.Learning

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    Francisco Lupiáñez Villanueva

    2006-12-01

    Full Text Available La introducción y uso de las Tecnologías de la Información y la Comunicación, especialmente Internet, en el ámbito de la salud, la medicina y los sistemas sanitarios enfrenta a todos los agentes e instituciones ante numerosos retos. La educación y la formación, como actividades claves tanto de la sociedad de la información como de los sistemas sanitarios, también se ven afectadas por este proceso de cambio. La finalidad de este artículo es identificar y analizar algunos de los aspectos claves relacionados con la introducción de las TIC e Internet en el ámbito de la educación médica continuada desde el punto de vista organizacional. Esta visión nos permite combinar factores pedagógicos, tecnológicos y organizativos. Todos ellos necesarios a la hora de abordar las complejas interacciones que se producen en la implantación de un proyecto de e.Learning.

  18. Factores familiares protectores y de riesgo relacionados al consumo de drogas en adolescentes

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    Patricia Cid-Monckton

    Full Text Available Se trata de un estudio transversal, cuantitativo, cuyo objetivo fue verificar los factores familiares protectores y de riesgo relacionados al consumo de drogas en adolescentes, considerando los patrones de interacción que se desarrollan en la familia, sus grados de adaptabilidad y vulnerabilidad. Participaron del estudio 80 adolescentes de género femenino, del 1º al 4º año de la Enseñanza Media, que respondieron a un cuestionario. Se establecieron los factores de riesgo y protección de mayor relevancia que estarían influyendo en esta situación, tales como, patrones de interacción, grado de adaptabilidad, modo de afrontamiento de los problemas, recursos de la familia y valores. Los factores de mayor riesgo fueron el modo de enfrentar los problemas, y dentro de estos, la falta de apoyo religioso y la búsqueda de apoyo profesional, conjuntamente con las dificultades de comunicación intrafamiliares. Los de menor riesgo fueron los valores, como el esfuerzo personal. Los resultados obtenidos resaltan que el enfermero debe asumir como parte de su rol las intervenciones psicosociales, especialmente en la población escolar, ya que así estarían actuando como agentes de prevención del consumo de drogas.

  19. Factores relacionados con la adquisición de medicamentos

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    Gerardo Alberto Castaño-Riobueno

    2016-12-01

    Full Text Available Objetivo: identificar los factores relacionados con la adquisición de medicamentos, de los usuarios de droguerías. Materiales y Métodos: estudio descriptivo de corte transversal. La muestra fue de 138 usuarios de droguerías urbanas en una ciudad del noroccidente del departamento del Meta, mayores de 18 años, que expresaron su deseo de participar en el estudio cuando se les abordó al salir de la droguería. Se construyó un cuestionario revisado por 5 expertos. Resultados: las personas que compran medicamentos en las droguerías son, principalmente, del estrato 2; el 75 % de los usuarios no recibió información sobre los productos adquiridos; el 30 % leyó información del envase del medicamento, el 32.3 % de los usuarios de las droguerías recomienda medicamentos para el dolor de cabeza, la automedicación en la ciudad estudiada alcanza el 78 %, el 21 % de los usuarios se asesoran del personal de la droguería. Los grupos farmacológicos que más compran son analgésicos, antiinflamatorios, antibióticos y antigripales. Conclusiones: el gran reconocimiento del personal que labora en la droguería, como personal idóneo para recomendar el uso de medicamentos, lo debe llevar a liderar los procesos de dispensación pensando más en las personas y dejar de ver al medicamento como una mercancía.

  20. Stress relacionado com o trabalho e burnout em técnicos de radiologia

    OpenAIRE

    Melo, Sandra da Piedade Gonçalves de

    2012-01-01

    RESUMO - O fenómeno stress relacionado com o trabalho é um tema atual, bastante debatido e alvo de diversas investigações. No entanto, os estudos portugueses sobre o stress relacionado com o trabalho em profissionais de saúde não são muito frequentes, apesar de desempenharem uma atividade considerada de alto risco em termos de stress. O síndrome de burnout é a consequência de prolongados níveis de stress relacionado com o trabalho e compreende três dimensões: exaustão emocional (EE), despe...

  1. conceitos relacionados

    Directory of Open Access Journals (Sweden)

    Maria José D. Martins

    2005-01-01

    Full Text Available In this article we review the literature and reflect about the theme of school violence, and also about all the concepts that are related with that theme, namely: indiscipline, anti-social conduct, delinquency, conduct disorder and bullying. We clarify and differentiate these concepts in view of their operational definition and relation in future investigations.

  2. Reacciones adversas y problemas relacionados con medicamentos en un servicio de urgencia

    Directory of Open Access Journals (Sweden)

    Güemes Artiles Martín

    1999-01-01

    Full Text Available FUNDAMENTO: Las Reacciones Adversas a Medicamentos y los Problemas Relacionados con Medicamentos (PRM, son una causa frecuente de asistencia en los servicios de urgencias y requieren una mejor evaluación. MÉTODO: Se analizaron 1.097 admisiones consecutivas en el servicio de urgencias de "Nuestra Señora de los Volcanes" (actualmente "Hospital General de Lanzarote" en Arrecife de Lanzarote (Islas Canarias durante un período de tres meses, para determinar la existencia de Reacciones Adversas a Medicamentos o de otros problemas relacionados con fármacos. RESULTADOS: Diecinueve de las 1.097 admisiones se debieron a reacciones adversas a medicamentos (1.73%; 95 % CI: 0.96 % - 2.5%. Entre los otros "Problemas Relacionados con los Medicamentos", destacaron la intoxicación por medicamentos, que se diagnosticó en 5 de los pacientes (0.45%; el agravamiento del cuadro clínico por supresión del medicamento apareció en 8 (0.72% y los tratamientos inadecuados que precisaron atención médica en el servicio de urgencia fueron 11 (1.0%. El número total de problemas relacionados con medicamentos en la muestra fue de 43 (3.9%. Los problemas relacionados con medicamentos causaron hospitalización en el 1.9% de los pacientes atendidos en urgencias y resultó ser la causa de hospitalización en el 9.6% del total de ingresos urgentes en el hospital durante el periodo de estudio. En cuanto a las reacciones adversas a medicamentos causaron 4.1% del total de ingresos en el hospital. CONCLUSIONES: Los problemas relacionados con los medicamentos son un problema frecuente, importante y no bien estudiado en los servicios de urgencias. Además, los servicios de urgencias pueden actuar como el primer sitio de reconocimiento para las reacciones adversas a medicamentos en la población ambulatoria.

  3. Instrumentos relacionados con la actividad textil de época tardoantigua y altomedieval en Cantabria

    Directory of Open Access Journals (Sweden)

    Gutiérrez Cuenca, E.

    2010-01-01

    Full Text Available Los instrumentos relacionados con la actividad textil son relativamente abundantes en el repertorio de cultura material de época tardoantigua y altomedieval en Cantabria. Muchos de estos objetos han pasado desapercibidos o no han sido correctamente identificados en trabajos previos. Recogemos en este estudio un inventario detallado de los diferentes instrumentos, relacionados con el hilado (fusayolas, ganchos de huso, ruecas de mano y con el tejido (punzones, pesas de telar, con numerosos paralelos en diferentes zonas de Europa. La mayor parte de los hallazgos procede de cuevas, algunas con depósitos sepulcrales, y se pueden datar en líneas generales entre los siglos VI y X.

  4. Biological Agents

    Science.gov (United States)

    ... E-Tools Safety and Health Topics / Biological Agents Biological Agents This page requires that javascript be enabled ... 202) 693-2300 if additional assistance is required. Biological Agents Menu Overview In Focus: Ebola Frederick A. ...

  5. Factores relacionados con el rendimiento académico en alumnos de fisiopatología

    OpenAIRE

    Sanguinetti, José María; López, Raquel; Vieta, María Eugenia; Berruezo, Silvana; Chagra, Carolina

    2013-01-01

    Introducción: El rendimiento académico está relacionado con diferentes variables. Objetivos: Evaluar factores sociales, demográficos y hábitos, así como determinar su relación con el rendimiento académico. Material y métodos: Trabajo observacional, transversal, correlacional entre abril y noviembre de 2012. Se realizó una encuesta a alumnos de Fisiopatología, de la Universidad Nacional de Salta y se constató en noviembre quienes habían regularizado la asignatura. Variables estudiadas: edad, s...

  6. Ressalto no canto posteromedial do joelho relacionado ao músculo sartório

    Directory of Open Access Journals (Sweden)

    Marcello Henrique Nogueira-Barbosa

    2011-06-01

    Full Text Available As causas da síndrome de ressalto no joelho relatadas com maior frequência são relacionadas a anormalidades meniscais, ao tendão do músculo bíceps femoral e aos tendões grácil e semitendíneo. Neste trabalho é descrito um caso de ressalto no canto posteromedial relacionado à junção miotendínea do músculo sartório em um paciente do sexo masculino, de 58 anos de idade, com hiperextensão do joelho.

  7. Câncer de mama e sofrimento psicológico: aspectos relacionados ao feminino

    OpenAIRE

    Silva, Lucia Cecilia da

    2008-01-01

    No Brasil e no mundo a incidência do câncer de mama vem aumentando e aparecendo cada vez mais cedo na vida da mulher. O tratamento envolve mastectomia, quimioterapia e radioterapia, que, pelos seus efeitos físicos, podem comprometer em variados graus a auto-estima, a imagem corporal e a identidade feminina daquelas que recebem o diagnóstico da doença. Além disso, em nossa sociedade o câncer adquiriu significados relacionados a culpa, punição, deterioração, dor e morte, agravando o sofrimento ...

  8. Frecuencia y factores de riesgo de enfermedad cerebrovascular en esquizofrenia y trastornos relacionados

    OpenAIRE

    Berrocal Izquierdo, Núria

    2017-01-01

    [spa] La salud física de los pacientes con trastorno mental grave es un campo de interés creciente en medicina. En concreto, la enfermedad cerebrovascular es la causa más frecuente de muerte natural prematura en los pacientes con trastornos relacionados con la esquizofrenia, por lo que debería incluirse en toda estrategia de salud que incluya a dicha población. La tesis presentada nace de la percepción de los neurólogos del Parc Sanitari Sant Joan de Déu de que los pacientes con trastornos ...

  9. Instrumentos relacionados ao diabetes mellitus adaptados e validados para a cultura brasileira

    Directory of Open Access Journals (Sweden)

    Raquel Curcio

    2011-06-01

    Full Text Available Trata-se de um estudo de revisão integrativa, cujo objetivo foi buscar evidências disponíveis na literatura sobre os instrumentos e escalas relacionados ao diabetes mellitus adaptados e validados para a cultura brasileira. Após busca nas bases eletrônicas BDENF, SciELO, LILACS, foram incluídos sete instrumentos que atenderam aos critérios de inclusão: Diabetes Mellitus Knowledge (DKN-A; Diabetes Mellitus Attitude (ATT-19; Diabetes Quality of Life Measure (DQOL-Brasil; Diabetes Quality of Life for Youths (DQOLY-Brasil; Diabetes 39 (D-39; Insulin Management Diabetes Self-efficacy (IMDSES; Problem Areas in Diabetes (PAID e Summary of Diabetes Self-Care Activities Questionnaire (QAD. Os resultados permitiram traçar uma comparação entre os instrumentos disponíveis, além de conhecer as limitações quanto ao processo de validação e aplicação clínica. Espera-se que esse estudo possa contribuir para uma maior divulgação dos instrumentos relacionados ao diabetes mellitus disponíveis para a cultura brasileira, e oferecer subsídios para a sua utilização em pesquisa ou assistência de enfermagem.

  10. Sintomatologia osteomuscular e qualidade de vida de portadores de distúrbios osteomusculares relacionados ao trabalho

    Directory of Open Access Journals (Sweden)

    Giselle Santana Dosea

    Full Text Available RESUMO Objetivo: Analisar, a partir de um perfil ocupacional, os aspectos da sintomatologia osteomuscular e da qualidade de vida (QV de trabalhadores notificados como portadores de distúrbios osteomusculares relacionados ao trabalho (DORT no estado de Sergipe. Métodos: A pesquisa foi realizada entre os meses de julho/2013 e julho/2014 e utilizou-se os questionários Nórdico de Sintomas Osteomusculares e o SF-36, em 56 voluntários. Resultados: Observou-se maior severidade dos sintomas na região dos ombros e cervical, e baixas médias de QV em todos os domínios, com relação significativa entre sexo e sintomatologia nos membros superiores, e entre componentes mentais e físicos da QV e a sintomatologia em ombros e punhos. Considerações finais: Esta pesquisa possuiu limites metodológicos relacionados ao reduzido número de indivíduos da amostra, no entanto, ainda assim, foi possível atingir seus objetivos, através da análise do perfil ocupacional, da sintomatologia osteomuscular e da QV dos trabalhadores notificados como portadores de DORT no estado de Sergipe. A QV do portador de DORT é reduzida, embora sua relação com a sintomatologia da doença precise ser investigada mais profundamente.

  11. Traducción y comentario de texto relacionado con enfermedades infantiles raras

    OpenAIRE

    Oliver Calabuig, Aaron

    2014-01-01

    Treball Final de Grau en Traducció i Interpretació. Codi: TI0983. Curs: 2013/2014 La traducción científica es, quizás, uno de los campos en los que más se requiere a sus profesionales que tengan un amplio bagaje cultural relacionado con su propio ámbito. En mi opinión, esto es en gran parte debido al hecho de que, en traducción científica, gran parte de las decisiones que se toman se basan en el uso de la lengua entre profesionales, desdeñando lo prescriptivo y los consejos y n...

  12. Percepción de riesgo en adolescentes relacionado con aborto

    Directory of Open Access Journals (Sweden)

    Bárbara Díaz Díaz

    2017-12-01

    Full Text Available Introducción: Los estudios realizados sobre la educación de la sexualidad han permitido constatar que aún son insuficientes los conocimientos que poseen los adolescentes sobre aspectos relacionados con el tema, en especial los riesgos del aborto y su repercusión de manera desfavorable en la salud sexual. Objetivo: Determinar la percepción de riesgo en adolescentes relacionado con aborto por embarazos no deseados. Métodos: Estudio observacional descriptivo, transversal y prospectivo, se utilizaron encuestas y entrevistas, así como métodos estadísticos para el procesamiento de la información. El universo estuvo conformado por 354 adolescentes pertenecientes a los consultorios médicos 20, 28 y 30 del Grupo Básico de Trabajo 2 del policlínico Pedro Borrás Astorga, la muestra de 190 adolescentes se encontraron entre las edades de 14 a 18 años. Resultados: Se evidenció una tendencia de los jóvenes a practicar conductas sexuales precoces y riesgosas, lo que favorece el aumento creciente de la práctica del aborto, con insuficientes conocimientos y percepción de riesgo sobre las consecuencias y riesgos de una interrupción de embarazo, donde se encuentran debilitados el rol de los padres y el papel del personal de salud de las áreas donde pertenecen. Conclusiones: Se demostró que el proceso de educación para la salud muestra insuficiencias en cuanto a la creación de programas educativos más creativos que fomentan actividades de promoción y prevención de salud dirigidos a los adolescentes.

  13. Factores relacionados al uso excesivo de alcohol en adultos jóvenes en Puerto Rico

    Directory of Open Access Journals (Sweden)

    David Pérez-Jiménez

    2018-05-01

    Full Text Available El propósito de este estudio fue identificar los factores relacionados con el uso excesivo de alcohol en personas jóvenes en Puerto Rico. Se realizó un estudio exploratorio de tipo cualitativo mediante el cual se entrevistaron de forma cualitativa a 20 adultos jóvenes (10 hombres y 10 mujeres, entre las edades de 21 a 29 años. Los datos fueron analizados mediante la técnica de análisis de contenido cualitativo. Los/as jóvenes identificaron más factores sociales y culturales que individuales. Algunos de los factores sociales más mencionados incluyen a la familia y a las campañas publicitarias que se transmiten por los medios de comunicación. Con respecto a la familia indicaron que en esta se comienza a transmitir valores de aceptación y uso del alcohol. Sobre las campañas publicitarias mencionaron que van dirigidas a resaltar la necesidad de consumir alcohol como una condición imprescindible para pasarla bien. También mencionaron que hay jóvenes que usan alcohol como un mecanismo para lidiar con los problemas que enfrentan. Esta investigación documenta algunos de los factores más relevantes relacionado con el uso de alcohol en jóvenes. Los esfuerzos de prevención deben ir dirigidos a minimizar esos factores de riesgo presentes en la cultura puertorriqueña y posiblemente latinoamericana

  14. [Alkylating agents].

    Science.gov (United States)

    Pourquier, Philippe

    2011-11-01

    With the approval of mechlorethamine by the FDA in 1949 for the treatment of hematologic malignancies, alkylating agents are the oldest class of anticancer agents. Even though their clinical use is far beyond the use of new targeted therapies, they still occupy a major place in specific indications and sometimes represent the unique option for the treatment of refractory diseases. Here, we are reviewing the major classes of alkylating agents and their mechanism of action, with a particular emphasis for the new generations of alkylating agents. As for most of the chemotherapeutic agents used in the clinic, these compounds are derived from natural sources. With a complex but original mechanism of action, they represent new interesting alternatives for the clinicians, especially for tumors that are resistant to conventional DNA damaging agents. We also briefly describe the different strategies that have been or are currently developed to potentiate the use of classical alkylating agents, especially the inhibition of pathways that are involved in the repair of DNA lesions induced by these agents. In this line, the development of PARP inhibitors is a striking example of the recent regain of interest towards the "old" alkylating agents.

  15. Factores relacionados con la mortalidad intrahospitalaria en el infarto agudo del miocardio

    Directory of Open Access Journals (Sweden)

    Yanier Coll Muñoz

    2012-09-01

    Full Text Available Fundamento: la identificación de los factores relacionados con la mortalidad en el infarto agudo del miocardio representa un eslabón primordial en la evaluación inicial de los pacientes. Objetivo: identificar los factores relacionados con la mortalidad intrahospitalaria de los pacientes con infarto agudo del miocardio, ingresados en la Unidad de Cuidados Intensivos Coronarios de Cienfuegos durante el año 2010. Método: se realizó un estudio de serie de casos, que incluyó 241 pacientes con diagnóstico de infarto agudo del miocardio, ingresados en la Unidad de Cuidados Intensivos Coronarios del Hospital General Universitario Dr. Gustavo Aldereguía Lima de Cienfuegos, en el año 2010. Las variables que se analizaron fueron: edad, sexo, antecedentes patológicos personales, tipo de infarto agudo del miocardio (según electrocardiograma y localización topográfica, frecuencia cardiaca y tensión arterial al ingreso, clasificación de la insuficiencia cardiaca según Killip Kimball, creatinina, glicemia, colesterol total, triglicéridos, CPK-MB, y eventos adversos cardiovasculares durante su estadía hospitalaria. Resultados: la edad media de los pacientes estudiados fue de 65,6 años, con predominio del sexo masculino. La hipertensión arterial, el tabaquismo y el infarto miocárdico previo fueron los antecedentes de mayor interés, predominan los pacientes sin insuficiencia cardiaca y fracción de eyección conservada. Los eventos adversos cardiovasculares más frecuentes fueron: la angina post-infarto, arritmias ventriculares malignas y el choque cardiogénico. Conclusiones: se encontró relación significativa con la mortalidad para la edad avanzada (>70 años, taquicardia, glicemia ≥7 mmol/l al ingreso, y la presentación de arritmias ventriculares y choque cardiogénico durante la evolución intrahospitalaria.

  16. Atores profissionais e estudantes de teatro: aspectos vocais relacionados à prática

    Directory of Open Access Journals (Sweden)

    Juliana Richinitti Vilanova

    Full Text Available RESUMO Objetivo: identificar e comparar, em atores profissionais e estudantes de teatro, os aspectos relacionados à prática profissional, ao uso profissional da voz, hábitos e cuidados vocais, hábitos de saúde e condições ambientais no trabalho. Métodos: participaram 60 sujeitos de ambos os sexos, subdivididos em 2 grupos: Grupo Profissional - atores profissionais de teatro e Grupo Alunos - alunos de teatro sem experiência profissional teatral. Ambos os grupos responderam a um questionário que abordou aspectos relacionados à prática profissional, à voz, hábitos vocais, de saúde, condições ambientais e cuidados vocais. Resultados: os indivíduos do Grupo Profissional apresentaram maior ocorrência de rouquidão; maior ocorrência dos hábitos de usar a voz profissional quando está gripado, em posturas corporais e com respiração inadequadas, gritar, e permanecer em local com mofo ou pouca ventilação, fechado e empoeirado, e realizar ensaio em local diferente do local do espetáculo. O hábito de saúde de ingerir bebidas geladas foi maior no Grupo Alunos. O número de sujeitos que não possuem dificuldade em cena e que realizam aquecimento vocal é significantemente maior no Grupo Profissional. O tipo de aquecimento realizado significantemente mais pelo Grupo Profissional foi som de "s", respiração costo-diafragmática, som basal e vogais. Conclusão: constatou-se que ambos os grupos realizam hábitos prejudiciais e estão expostos a ambiente de trabalho inadequado para saúde vocal. Estes dados apontam a necessidade de ações de saúde vocal, a fim de minimizar o risco de alterações vocais nos profissionais e preparar os estudantes para o aumento da demanda vocal.

  17. FACTORES DE RIESGO RELACIONADOS CON LAS INFECCIONES DE TRANSMISIÓN SEXUAL

    Directory of Open Access Journals (Sweden)

    María Ángeles Pérez-Morente

    2017-01-01

    Full Text Available Conocer los factores determinantes en Infecciones de Transmisión sexual (ITS es necesario para evaluar y diseñar medidas efectivas para su prevención y tratamiento. El objetivo de este estudio fue determinar los factores de riesgo relacionados con la sexualidad de sujetos atendidos en un centro de control de Infecciones de Transmisión Sexual y analizar si hubo diferencias en función del sexo. Método: Estudio transversal utilizando como fuente de información 496 historias clínicas correspondientes al periodo 2010-2014, de sujetos que acudieron al Centro de Enfermedades de Transmisión Sexual y Orientación Sexual de la provincia de Granada por sospecha de ITS. Se recogieron datos sociodemográficos, clínicos y relacionados con pautas sexuales. Se realizó análisis descriptivo y análisis bivariante mediante comparación de proporciones con test de la chi-cuadrado. Resultados: El 56% de los sujetos eran hombres y el 44% mujeres. La edad media fue de 29,01 años (DT=9,07. El 85,9% estaban solteros. El 54,2% presentaba un nivel de estudios superior. Las infecciones más prevalentes fueron el virus del papiloma humano (18,8%, Molluscum contagioso (5,6% y candidiasis (3,8%. Se hallaron diferencias estadísticamente significativas por sexo con la variable conducta sexual, hallando 89 hombres homosexuales y 4 mujeres, así como 22 hombres bisexuales frente a 7 mujeres(p<0,001.También se hallaron diferencias entre sexo y vida sexual, encontrando mayor prevalencia de hombres con entre 10-20 parejas (n=23 y más de 20 parejas (n=20 que mujeres (n=10, n= 4, respectivamente (p<0,001. Conclusiones: El perfil es el de una persona joven, soltera, con estudios superiores. La infección más prevalente es el virus del papiloma humano. Los hombres siguen constituyendo la población más vulnerable para contraer infecciones de transmisión sexual debido a sus prácticas sexuales.

  18. Problemas de salud bucal relacionados al uso de medicamentos por vía inhalatoria en trastornos respiratorios

    Directory of Open Access Journals (Sweden)

    Rosemarie Huartamendia

    Full Text Available En el Uruguay la prevalencia de niños con problemas respiratorios no infecciosos es alta. El tratamiento medicamentoso de esas afecciones puede tener un impacto negativo en la salud bucal. El objetivo del presente estudio fue profundizar en los conocimientos sobre el asma en niños y adolescentes, de los fámacos y dispositivos terapéuticos utilizados y relacionarlos con los eventos adversos observados a nivel bucal. La revisión bibliográfica realizada demuestra que el uso de medicació por vía inhalatoria para las afecciones respiratorias no infecciosas se relaciona con reacciones adversas como la erosión, caries dental, gingivitis, halitosis, candidiasis y xerostomía. El relevamiento realizado en pacientes del Centro Hospitalario Pereira Rossell (2009-2010 mostró una correlación positiva entre los datos de la bibliografía revisada y lo observado en la clínica. Teniendo en cuenta estos antecedentes, es de importancia que el equipo de salud reconozca a la población que utiliza inhaladores como de alto riesgo potencial para el desarrollo de patologías bucales, enfatizando la necesidad de contar con programas educativo-preventivos específicos. La atención para la salud de los pacientes portadores de afecciones respiratorias requiere de un abordaje multidisciplinario

  19. Factores relacionados con el éxito del mantenimiento productivo total

    Directory of Open Access Journals (Sweden)

    Jorge Luis García Alcaraz

    2011-01-01

    Full Text Available El mantenimiento productivo total (TPM es una herramienta ampliamente usada en las áreas productivas, encaminada a incrementar la disponibilidad de la maquinaria y equipo de producción y los beneficios económicos de las empresas. Sin embargo, no se conocen los factores administrativos que aseguren su éxito de implantación. En este artículo se presentan los resultados de una encuesta que constó de 20 ítems y fue aplicada a 203 gerentes y supervisores de mantenimiento de empresas localizadas en Ciudad Juárez, la cual debía ser respondida en una escala Likert. El cuestionario se validó mediante el índice Alfa de Cronbach, se aplicó un análisis factorial exploratorio (AFE mediante el método de componentes principales y se realizó una rotación Varimax y se determinó que solamente 3 factores podían explicar el 65,06% de la varianza total, los cuales estaban relacionados con el compromiso de la gerencia, la cultura de limpieza e integración de operadores en decisiones de TPM. Además, se realizó un análisis factorial confirmatorio (AFC para validar los resultados obtenidos, confirmándose los hallazgos del AFE.

  20. ALIMENTAÇÃO DOS LACTENTES E FATORES RELACIONADOS AO ALEITAMENTO MATERNO

    Directory of Open Access Journals (Sweden)

    Nileide Lima Araújo

    2013-01-01

    Full Text Available El objetivo fue investigar la alimentación y los factores relacionados con la lactancia materna de lactantes en Picos-PI, Brasil. Estudio descriptivo y transversal, llevado a cabo con 90 niños menores de 12 meses de edad, cuyas madres comparecieron a las Unidades de Salud de la Familia para vacunarlos, en abril y mayo 2011. Se utilizó encuesta para recolectar datos socioeconómicos de la familia y del niño, y acerca de la comida que ofrecida. La tasa de lactancia materna exclusiva y la lactancia materna predominante fueron 57,8% y 47,8% respectivamente, siendo que la lactancia materna exclusiva tuvo duración media de 1 mes. Presentaron relación estadísticamente significativa (p <0,05 y positiva con la duración de la lactancia materna exclusiva: haber sido amamantado en la primera hora después del parto, edad materna y nivel de educación de la madre. Las prácticas alimentarias fueron inadecuadas para niños menores de un año.

  1. La epidemia de obesidad y sus factores relacionados: el caso de España

    Directory of Open Access Journals (Sweden)

    Gutiérrez-Fisac Juan Luis

    2003-01-01

    Full Text Available La epidemia de obesidad es un fenómeno universal que no parece reconocer límites ni geográficos ni sociodemográficos. Las investigaciones sobre los factores responsables de la epidemia se centran sobre algunas de las condiciones sociales y económicas que imperan en las sociedades actuales. El presente artículo muestra la situación de la obesidad en España y la tendencia de una serie de factores potencialmente relacionados. El incremento en la prevalencia de obesidad se acompañó de importantes cambios en el patrón de alimentación de la población a pesar de una tendencia estabilizada en la ingesta calórica total y de grasas. Diversos indicadores indirectos muestran la tendencia sedentaria de la población, a pesar de que un mayor porcentaje de la población declara realizar ejercicio físico en su tiempo libre. Los factores dependientes del gasto energético parecen tan o más importantes que los derivados del ingreso. Para explicar la situación paradójica de los distintos indicadores de sedentarismo se sugiere la hipótesis de un aumento del "stock de tiempo libre" en las sociedades actuales.

  2. La epidemia de obesidad y sus factores relacionados: el caso de España

    Directory of Open Access Journals (Sweden)

    Juan Luis Gutiérrez-Fisac

    Full Text Available La epidemia de obesidad es un fenómeno universal que no parece reconocer límites ni geográficos ni sociodemográficos. Las investigaciones sobre los factores responsables de la epidemia se centran sobre algunas de las condiciones sociales y económicas que imperan en las sociedades actuales. El presente artículo muestra la situación de la obesidad en España y la tendencia de una serie de factores potencialmente relacionados. El incremento en la prevalencia de obesidad se acompañó de importantes cambios en el patrón de alimentación de la población a pesar de una tendencia estabilizada en la ingesta calórica total y de grasas. Diversos indicadores indirectos muestran la tendencia sedentaria de la población, a pesar de que un mayor porcentaje de la población declara realizar ejercicio físico en su tiempo libre. Los factores dependientes del gasto energético parecen tan o más importantes que los derivados del ingreso. Para explicar la situación paradójica de los distintos indicadores de sedentarismo se sugiere la hipótesis de un aumento del "stock de tiempo libre" en las sociedades actuales.

  3. Factores de riesgo relacionados con la conducta suicida en la infancia y adolescencia

    Directory of Open Access Journals (Sweden)

    Ariane Hernández Trujillo

    2013-12-01

    Full Text Available Se realizó un estudio observacional, descriptivo y transversal en el Hospital Infantil Norte Docente "Dr. Juan de la Cruz Martínez Maceira" de la provincia de Santiago de Cuba en el 2010, a fin de describir los factores relacionados con la conducta suicida en 26 de 31 adolescentes de 11 a 17 años, atendidos en dicha institución durante ese período. Se halló que el grupo más afectado fue el de 14-15 años, con primacía del sexo femenino. Entre los factores de riesgo predominantes figuraron, por citar los principales en la casuística: los maltratos físicos y psicológicos como las humillaciones efectuadas por los propios padres; la falta de redes de apoyo familiar en la mayoría de ellos; la ausencia de solución de sus problemas; la ingestión de medicamentos para suicidarse, fundamentalmente psicofármacos, así como la depresión y el consumo de alcohol como antecedentes patológicos familiares.

  4. Chemical Agents

    Science.gov (United States)

    ... CR) see Riot Control Agents Digitalis Distilled mustard (HD) see Sulfur mustard E Ethylene glycol F Fentanyls and other opioids H Hydrazine Hydrofluoric acid (hydrogen fluoride) Hydrogen chloride Hydrogen cyanide (AC) Hydrogen ...

  5. Eventos toxicológicos relacionados a medicamentos no Estado de São Paulo Drug-related toxic events in the state of São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Eliane Gandolfi

    2006-12-01

    Full Text Available OBJETIVO: Analisar as características epidemiológicas dos eventos toxicológicos relacionados a medicamentos. MÉTODOS: Realizou-se um estudo epidemiológico descritivo de série de casos. Utilizando a categoria "evento toxicológico relacionado a medicamentos", analisaram-se 6.673 casos registrados em centros de assistência toxicológica do Estado de São Paulo, no ano de 1998. As variáveis estudadas compreenderam características dos eventos, das pessoas afetadas, dos agentes tóxicos e das circunstâncias envolvidas. A análise dos agentes tóxicos considerou três níveis de desagregação: grupos terapêuticos, princípios ativos e nomes comerciais. RESULTADOS: Os medicamentos ocuparam o primeiro lugar entre todos os tipos de agentes tóxicos registrados pelos centros. Os eventos toxicológicos relacionados a medicamentos caracterizaram-se por serem registrados por telefone (78,5%, a partir de hospitais (86,6%; originaram-se de exposições agudas, pela via oral (90,2%, ocorridas em residência (85,7% de área urbana (95%. Houve predomínio do sexo feminino (59% e maior concentração na primeira década de vida (49,4%, sobretudo aos dois e três anos de idade. Os princípios ativos mais freqüentemente encontrados foram: fenobarbital, diazepam, haloperidol, carbamazepina e bromazepam. As principais circunstâncias foram as acidentais (38,8% e tentativas de suicídio (36,5%. Entre os princípios ativos relacionados predominaram os dos grupos terapêuticos psiquiatria, analgesia/anestesia e respiratório. CONCLUSÕES: Aponta-se a necessidade de cumprimento da legislação quanto à venda de medicamentos sob receituário médico e de construção da toxicovigilância conforme diretrizes do Sistema Único de Saúde.OBJECTIVE: To assess the epidemiological characteristics of drug-related toxic events in the State of São Paulo, Brazil. METHODS: A descriptive epidemiological case series study was conducted. Using the category "drug

  6. LATENCIA DEL HERPESVIRUS BOVINO-1: EL PAPEL DE LOS TRANSCRITOS RELACIONADOS CON LATENCIA (RL

    Directory of Open Access Journals (Sweden)

    JULIÁN, RUIZ

    2008-01-01

    Full Text Available El herpesvirus bovino-1 es un virus de distribución mundial causante de graves pérdidas económicas debidas principalmente a la disminución de la eficiencia y en los indicadores de salud y productividad de cualquier hato ganadero infectado. Luego de la infección inicial del tracto respiratorio de los animales, el virus establece un estado de latencia viral en las neuronas sensoriales del ganglio trigémino y en los centros germinales de las tonsilas faríngeas. Periódicamente, el virus es reactivado y excretado en secreciones a través de las cuales puede infectar a otros animales susceptibles. Durante dicho estado de latencia hay disminución dramática de la expresión de genes virales, llevando solo a la expresión de dos transcritos: El RNA codificado por el gen relacionado con latencia (RL y el ORF-E viral. Múltiples estudios demuestran como el RL y el ORF-E están involucrados en la regulación del complejo ciclo de latencia y reactivación de la infección. La presente revisión de literatura se enfocará en describir y analizar los distintos estudios que han llevado a dilucidar el papel jugado por el gen RL y el ORF-E, sus transcritos y sus productos proteicos en el establecimiento, mantenimiento y reactivación de la latencia del HVB-1.

  7. FACTORES RELACIONADOS CON LA PERSISTENCIA DEL HÁBITO TABÁQUICO EN ESTUDIANTES UNIVERSITARIOS

    Directory of Open Access Journals (Sweden)

    Felipe Ernesto Parrado Corredor

    2016-01-01

    Full Text Available El hábito tabáquico es un problema de salud pública que causa millones de muertes en el mundo. A pesar de la existencia de leyes nacionales que restringen su venta y distribución en espacios próximos a centros educativos, el cigarrillo es consumido al menos una vez en la vida por uno de cada cuatro estudiantes universitarios en Colombia. El presente estudio tuvo como objetivo describir los factores relacionados con la persistencia del hábito tabáquico en un grupo de 57 estudiantes universitarios, en comparación a 14 estudiantes que cumplieron al menos el 50% de un programa de cesación de consumo. Se utilizaron: Test de Fagerström, el cuestionario QSU Brief, cooximetría y un cuestionario sobre el hábito tabáquico. Se encontró que el craving determina la persistencia de los estudiantes en la conducta de fumar, los fumadores que evitan el proceso de cesación marcan niveles más altos de dependencia y craving negativo frente a los participantes que realizaron el programa; la consideración de dejar de fumar estuvo asociada a exámenes académicos, reuniones sociales y la forma de consumo. En conclusión, los exámenes académicos, las reuniones sociales y las formas de consumo, son situaciones que facilitan la persistencia del hábito, probablemente controlan el craving en los estudiantes y podrían reforzar la dependencia al cigarrillo.

  8. DERMATITE DIGITAL BOVINA: ASPECTOS RELACIONADOS À EVOLUÇÃO CLÍNICA

    Directory of Open Access Journals (Sweden)

    Olízio Claudino da Silva

    2006-10-01

    Full Text Available A dermatite digital bovina é uma enfermidade de etiologia multifatorial e patogenia complexa que representa grande entrave produtivo e econômico à pecuária mundial.O objetivo deste estudo foi avaliar aspectos relacionados à evolução clínica da enfermidade após antibioticoterapia parenteral. Foram utilizadas 28 fêmeas bovinas, da raça Girolando, com idade entre quatro a dez anos, portadoras de lesões digitais clinicamente caracterizadas como dermatite digital. Os bovinos enfermos foram distribuídos em dois grupos (I e II de quatorze animais. Aqueles pertencentes ao grupo I constituíram o grupo-controle, em que,portanto, não foi utilizada antibioticoterapia. Nas vacas que compuseram o grupo II, aplicaram-se, por via intramuscular,20 mg/kg de peso corporal de oxitetraciclina, em intervalos de 48 horas, até completar quatro aplicações. Ao final de um ano de observação, a maioria das lesões na pele do espaço interdigital entre os talões evoluiu para a forma clínica erosiva e aquelas localizadas nos pontos limítrofes entre apele e o cório coronário dos talões, na parede abaxial do estojo córneo ou no espaço interdigital dorsal, evoluíram para a forma proliferativa. Não houve cura de nenhum animal em ambos os grupos, porém a antibioticoterapia parenteral reduziu a gravidade das lesões. PALAVRAS-CHAVE: Antibioticoterapia, bovinos, dermatite digital, evolução clínica.

  9. Factores de riesgo relacionados con la prevalencia de sobrepeso y obesidad en adolescentes

    Directory of Open Access Journals (Sweden)

    Yasmin Gabriela Otero-Esteban

    2015-12-01

    Full Text Available Objetivo: identificar los factores de riesgo relacionados con la prevalencia de sobrepeso y obesidad en adolescentes entre 10 y 18 años que pertenecen a los colegios públicos de la ciudad de Cúcuta, durante el primer semestre del 2014. Materiales y Métodos: estudio descriptivo de corte transversal; con una población: 61.172 adolescentes y una muestra de 382 estudiantes matriculados en los colegios públicos de Cúcuta. El instrumento fue diseñado por las investigadoras para valorar las características sociodemográficas, medidas antropométricas, factores endógenos, exógenos y percepción del exceso de peso y de su imagen. Resultados: el exceso de peso presento alta proporción en la adolescencia temprana y en el estrato socioeconómico 2. Predominio de sobrepeso en mujeres y obesidad en hombres. En los factores endógenos asociados con estos trastornos, prevaleció el antecedente familiar de sobrepeso y obesidad, además recibieron otra alimentación y no leche materna durante los primeros seis meses, y como antecedentes personales presentaron ansiedad y parto prematuro. En los factores exógenos la alimentación de los adolescentes con sobrepeso es alta en grasas y en los obesos es alta en azúcares, baja en verduras y fibra. Los estudiantes con déficit y con peso normal, se sienten flacos y sanos; los adolescentes con sobrepeso perciben su silueta mayor, y los obesos la perciben menor a la establecida para su índice de masa corporal. Conclusiones: los adolescentes escolarizados presentan una alta prevalencia de sobrepeso y obesidad, observándose una mayor preponderancia de factores de riesgo endógenos y exógenos. De igual manera, presentan una imagen corporal que no corresponde a su estado nutricional.

  10. Evaluation of aptamers labelled with {sup 99m}Tc for identification of Staphylococcus aureus bacteria; Avaliacao de aptameros marcados com {sup 99m}Tc para identificacao de focos infecciosos de Staphylococcus aureus

    Energy Technology Data Exchange (ETDEWEB)

    dos Santos, Sara Roberta

    2014-06-01

    Staphylococcus aureus is specie of great medical importance because it is often associated with many infections in humans. This bacterium can cause diseases ranging from simple infections to life-threatening infections such as endocarditis, pneumonia, meningitis, toxic shock syndrome, septicemia, osteomyelitis, among others. S. aureus is the most commonly agent found in infections of the skin and soft tissues, bone infections and bone prostheses. The difficulty in early detection of specific foci caused by bacteria has raised the need to search for new techniques for this purpose. Diagnosis by scintigraphy has advantages over other methods because it is able to identify damage tissues without the need of invasive procedures and is able to perform an early diagnosis even before anatomic changes. Thus, nuclear medicine could contribute to an accurate diagnosis of bacterial infections, since specific radiopharmaceuticals were developed. Aptamers are oligonucleotides that have high affinity and specificity for their molecular targets and are emerging as a new class of molecules for radiopharmaceuticals development. Radiolabeled aptamers specific to the infectious agents, could give a significant contribution to the infection diagnosis by scintigraphy. In this study, aptamers selected to S. aureus were labeled with {sup 99m}Tc and used for the bacteria identification in vitro and in vivo. The aptamers labeled with {sup 32}P and incubated in vitro with S. aureus cells showed high affinity for the bacterial cells when compared with the library of oligonucleotides with random sequences used as control. The aptamers labeled with {sup 99m}Tc also showed affinity for S. aureus cells when compared with the library, but unspecific binding was also verified. The {sup 99m}Tc labelled aptamers were stable in 0.9% saline, plasma of Swiss mice and in excess of cysteine. The in vivo biodistribution studies using Swiss mice with intramuscular infection in the right thigh showed that

  11. {sup 99m} Tc-UBI 29-41: radiolabelled antimicrobial peptide for the diagnostic by image of infectious processes; {sup 99m} Tc-UBI 29-41: peptido antimicrobiano radiomarcado para el diagnostico por imagen de procesos infecciosos

    Energy Technology Data Exchange (ETDEWEB)

    Ferro F, G.; Ramirez C, F.M. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico); Murphy, C.A. de; Pedraza L, M.; Rodriguez C, J. [INCMNSZ, 14000 Mexico D.F. (Mexico); Melendez A, L. [Facultad de Medicina, UAEM, 50000 Toluca, Estado de Mexico (Mexico)

    2005-07-01

    used so much in the detection of infectious processes as inflammatory, obtaining the respective gamma graphic images. Once proven the specificity and non toxicity of the {sup 99m}Tc-UBI 29-41, their capacity of detecting infectious focuses obtaining images diagnoses in some osteomyelitis courses was evaluated. The results showed that the {sup 99m}Tc-UBI 29-41 can prepare it as a highly stable radio complex with radiochemical purity >97%. This radiopharmaceutical unites specifically to the bacteria so much in vivo as in vitro, while the control peptides unites as much to bacteria as to tumoral cells. The gamma graphic images showed a quick renal purifying with minimum accumulation in non target organs and a relationship in infection sites/not infected infected sites of 2.2{+-}0.7 at 2 hours. The {sup 99m}Tc-UBI 29-41 can prepare it by a direct method with high radiochemical purity and, for their properties of molecular recognition and biokinetics, to be used as a diagnostic agent for the specific detection of infectious processes. (Author)

  12. Factores peri y postnatales relacionados con el asma bronquial en niños

    Directory of Open Access Journals (Sweden)

    Odalys Orraca Castillo

    2014-06-01

    Full Text Available Introducción: el asma es una de las enfermedades que recuerda a los médicos la importancia de los elementos clínicos y epidemiológicos en el reconocimiento del paciente. La enfermedad surge por factores genéticos y ambientales. Objetivo: describir los factores peri y postnatales del asma bronquial en pacientes de edad pediátrica en Pinar del Río. Material y método: se realizó un estudio descriptivo en la provincia Pinar del Río durante el periodo enero-junio 2010. Fueron seleccionados 585 asmáticos de edad pediátrica, por muestreo probabilístico estratificado, proporcional al universo de pacientes de las capitales municipales. Se consideró a cada municipio como estrato. Se usó la técnica de muestreo sistemático. Se calcularon las frecuencias absolutas y relativas de las variables cualitativas estudiadas. Resultados: el 10.8% de las madres fueron fumadoras durante el embarazo. El 6.7% y 39.5% de los niños fueron fumadores activos y pasivos respectivamente. El 34.2% de los niños asmáticos no mantuvo lactancia materna exclusiva hasta los tres meses. La rinitis ocupó el primer lugar (55% dentro de las co-morbilidades alérgicas. El 73.2% de los pacientes presentaron catarros, seguido de las amigdalitis e infecciones parasitarias. Conclusiones: el tabaquismo (pasivo y activo, la convivencia con animales domésticos, el consumo excesivo y temprano de leche de vaca con el retiro temprano de la lactancia materna exclusiva y las infecciones respiratorias como antecedentes patológicos personales constituyen factores peri y postnatales relacionados con niños asmáticos en Pinar del Río en quienes la rinitis y dermatitis se asociaron como parte de la marcha atópica.

  13. Principales daños sanitarios y sociales relacionados con el consumo de alcohol

    Directory of Open Access Journals (Sweden)

    Ana Sarasa-Renedo

    2014-01-01

    Full Text Available El alcohol afecta al cerebro y a la mayoría de los órganos y sistemas y se relaciona con numerosos problemas sanitarios, incluyendo enfermedades mentales, neurológicas, digestivas, cardiovasculares, endocrinas y metabólicas, perinatales, cáncer, infecciones y lesiones intencionadas y no intencionadas. Los mecanismos fisiopatológicos aún no se comprenden bien, aunque se ha postulado toxicidad directa del etanol y de sus metabolitos, déficits nutricionales y absorción de endotoxinas microbianas intestinales, todo modulado por los patrones de consumo y factores genéticos y ambientales. A nivel individual no puede predecirse con precisión quién tendrá o no problemas. A nivel poblacional para muchos problemas, como varios tipos de cánceres, hepatopatías, lesiones y probablemente conductas de riesgo, como relaciones sexuales sin protección, se suele observar una relación dosis respuesta lineal o exponencial. Para otros, como mortalidad general en mayores de 45 años, enfermedades isquémicas o diabetes mellitus la relación es en forma de J. Su impacto sobre la carga global de enfermedad es enorme, incluso después de descontar los efectos beneficiosos sobre la enfermedad cardiovascular, con diferencias importantes según país, edad, género, posición socioeconómica y otros factores. Buena parte de los daños se relacionan con su capacidad para producir dependencia y con la intoxicación aguda. A menudo genera también consecuencias negativas para otras personas (violencia, incumplimiento de responsabilidades familiares o laborales, molestias que no suelen considerarse al evaluar la carga de enfermedad. El objetivo de este trabajo es describir los principales daños sociales y sanitarios relacionados con el consumo de alcohol y los mecanismos que los generan a partir de fuentes secundarias.

  14. [Biological agents].

    Science.gov (United States)

    Amano, Koichi

    2009-03-01

    There are two types of biological agents for the treatment of rheumatoid arthritis (RA); monoclonal antibodies and recombinant proteins. Among the latter, etanercept, a recombinant fusion protein of soluble TNF receptor and IgG was approved in 2005 in Japan. The post-marketing surveillance of 13,894 RA patients revealed the efficacy and safety profiles of etanercept in the Japanese population, as well as overseas studies. Abatacept, a recombinant fusion protein of CTLA4 and IgG, is another biological agent for RA. Two clinical trials disclosed the efficacy of abatacept for difficult-to-treat patients: the AIM for MTX-resistant cases and the ATTAIN for patients who are resistant to anti-TNF. The ATTEST trial suggested abatacept might have more acceptable safety profile than infliximab. These biologics are also promising for the treatment of RA for not only relieving clinical symptoms and signs but retarding structural damage.

  15. Experiencias en la vigilancia epidemiológica de agentes patógenos transmitidos por alimentos a través de electroforesis en campo pulsado (PFGE en el Perú Experiences in the epidemiological surveillance of foodborne pathogens by pulsed field gel electrophoresis (PFGE in Peru

    Directory of Open Access Journals (Sweden)

    María Luz Zamudio

    2011-03-01

    Full Text Available Las enfermedades transmitidas por alimentos (ETA y otras enfermedades entéricas infecciosas ocurren a menudo como brotes y son causa de morbilidad y mortalidad en todo el mundo. En el Perú, son un importante problema de salud pública y son causados por una gran variedad de agentes infecciosos. Para la investigación epidemiológica se utiliza una variedad de métodos de tipificación. Una de las herramientas más importantes en la subtipificación molecular de patógenos bacterianos es la técnica de la electroforesis en campo pulsado (PFGE, que es un método altamente resolutivo que permite la discriminación entre diferentes aislamientos bacterianos epidemiológicamente relacionados. El Instituto Nacional de Salud (INS del Perú integra las redes WHO Global Foodborne Infections Network y la Red PulseNet América Latina y Caribe, con quienes comparte los perfiles genéticos de las cepas patógenas aisladas, permitiendo comparar los genotipos de cepas semejantes halladas en diferentes países y reconocer la ocurrencia de brotes epidémicos en la región, fortaleciendo el sistema de vigilancia epidemiológica regional y generando una rápida respuesta conjunta entre países. Se presenta la experiencia de los dos últimos años sobre los avances en la utilización de estas herramientas estratégicas que nos ha permitido caracterizar patrones de genotipo de principales patógenos implicados en ETA a partir de aislamientos recuperados de la red de laboratorios del Perú.Foodborne diseases and other enteric infections often occur as outbreaks and cause morbidity and mortality all over the world. In Perú, they represent a serious public health problem, and are caused by a great variety of infectious agents. For epidemiological research, a wide array of typification methods are used. One of the most important tools for the molecular subtyping of bacterial pathogens is the Pulsed Field Gel Electrophoresis (PFGE, which is a highly precise method that

  16. Fatores maternos e perinatais relacionados à macrossomia fetal Maternal and perinatal factors related to fetal macrosomia

    Directory of Open Access Journals (Sweden)

    José Mauro Madi

    2006-04-01

    Full Text Available OBJETIVO: identificar fatores maternos e perinatais relacionados a fetos com peso igual ou maior do que 4.000 g no nascimento. MÉTODOS: estudo de corte transversal, de 411 casos consecutivos de macrossomia fetal, ocorridos no período de março de 1998 a março de 2005. Compararam-se os dados obtidos aos de 7.349 casos de fetos com peso entre 2.500 e 3.999 g ao nascimento, ocorridos no mesmo período. Foram analisadas variáveis maternas (idade, paridade, diabete melito, ocorrência de parto cesáreo, mecônio, desproporção feto-pélvica, principais indicações das cesáreas e perinatais (ocorrência de tocotraumatismo, índice de Apgar inferior a sete no 1º e 5º minuto, natimortalidade, neomortalidade precoce, necessidade de internação na Unidade de Tratamento Intensivo Neonatal. As avaliações estatísticas foram realizadas com o teste não paramétrico do chi2 com a correção de Yates e com o teste t de Student. Adotou-se o nível de significância de pPURPOSE: to identify maternal and perinatal factors related to neonates with birthweight >4,000 g. METHODS: cross-section cohort study with 411 consecutive cases of fetal macrosomia (FM which occurred from March 1998 to March 2005. Data were compared to 7,349 cases of fetal birthweight >2,500 and <3,999 g which occurred in the same period. Maternal variables (maternal age, parity, diabetes, previous cesarean section, meconium-stained amniotic fluid, cephalopelvic disproportion, main cesarean section indications and perinatal variables (birth injury, <7 1-min and 5-min Apgar score, fetal and early neonatal mortality range, need of neonatal intensive care unit were analyzed. For statistical analysis the chi2 test with Yates correction and Student's t test were used with the level of significance set at 5%. RESULTS: FM was significantly associated with older mothers, more parous and <7 1-min Apgar score (p<0.05; OR=1.8; 95% CI: 1,4-2.5 and <7 5-min Apgar score (p<0,05; OR=2.3; 95% CI: 1

  17. ASPECTOS RELACIONADOS CON LAS BASES BIOQUÍMICAS DE LA SIMBIOSIS MICORRÍZICA ARBUSCULAR

    OpenAIRE

    Yakelin Rodríguez

    2005-01-01

    Las investigaciones en el contexto agrícola, en los últimos años, se han dirigido a buscar soluciones donde los microorganismos del suelo juegan un papel protagónico, pues contribuyen a la recuperación de los agroecosistemas, permiten la sustitución parcial o total de los agentes químicos, además de su bajo costo de producción y la posibilidad de fabricarse a partir de recursos locales renovables. En Cuba y otros países, se han dado pasos acelerados para poner en práctica el uso de los biofer...

  18. Fatores relacionados à gravidade da doença periodontal em cães

    OpenAIRE

    Mariano, Kauana Peixoto

    2013-01-01

    A doença periodontal caracteriza-se pela inflamação e destruição de estruturas do periodonto. É uma das doenças que mais frequentemente acometem os cães, sendo seu agente etiológico a placa bacteriana que se acumula na superfície dos dentes. O objetivo desse estudo foi avaliar a interferência de fatores como dietas caseira, mista e seca, idade e escore corporal na gravidade da doença periodontal em 73 cães. Foi realizada avaliação nutricional, exame clínico da cavidade bucal...

  19. Aspectos claves relacionados con la gestión del e.Learning

    OpenAIRE

    Francisco Lupiáñez Villanueva

    2006-01-01

    La introducción y uso de las Tecnologías de la Información y la Comunicación, especialmente Internet, en el ámbito de la salud, la medicina y los sistemas sanitarios enfrenta a todos los agentes e instituciones ante numerosos retos. La educación y la formación, como actividades claves tanto de la sociedad de la información como de los sistemas sanitarios, también se ven afectadas por este proceso de cambio. La finalidad de este artículo es identificar y analizar algunos de los aspectos claves...

  20. Perfiles e indicadores psicológicos relacionados con la dispareunia y el vaginismo: Estudio cualitativo. Segunda parte

    OpenAIRE

    Sánchez Bravo, Claudia; Carreño Meléndez, Jorge; Corres Ayala, Norma Patricia; Taracena Ruiz, Bertha Elvia

    2010-01-01

    Una de las metas de la psicología de la salud es la búsqueda de especificidad en la detección de factores relacionados con los trastornos psicológicos, entre los que se encuentran las disfunciones sexuales femeninas por dolor: la dispareunia y el vaginismo (no debidas a enfermedad médica). La dispareunia es la presencia de dolor genital en la relación sexual. El vaginismo se caracteriza por espasmos de la musculatura de la entrada vaginal que dificultan o hacen imposible la realización del co...

  1. Eventos adversos relacionados à terapia ventilatória em recém-nascidos de alto risco

    OpenAIRE

    França, Débora Feitosa de

    2016-01-01

    Objetivou-se analisar os eventos adversos relacionados à terapia respiratória em recém-nascidos de alto risco de uma unidade neonatal. Trata-se de um estudo observacional, longitudinal e prospectivo, realizado em uma maternidade, unidade de referencia no Estado do Rio Grande do Norte para gravidez e nascimento de alto risco. Os dados foram coletados no período de abril a setembro 2016, após aprovação do projeto no Comitê de Ética em Pesquisa da UFRN com CAAE nº 51832415.0.0000.5537. A amostra...

  2. Factores económicos y sociales relacionados con los indicadores de salud en la República de Yemen

    OpenAIRE

    Mohamed Gharama, Al-Rae; Más Bermejo, Pedro

    2005-01-01

    El sistema de salud en Yemen es una consolidación de 2 sistemas de salud (Norte y Sur). Estos servicios se ofrecen basados en 3 niveles: atención primaria de salud (unidades y centros), los servicios secundarios (distrito y hospitales del governorate) y la atención terciaria con los hospitales universitarios especializados. Los recursos humanos para la salud se encuentran por encima de 40 000 trabajadores. Los principales problemas de este sector en el país están relacionados con las enfermed...

  3. Eventos adversos relacionados con los cuidados de enfermería en el Hospital de Ibarra, provincia de Imbabura

    OpenAIRE

    Adela Janet Vaca Aúz; Zoila Paulina Muñoz Navarro; Mercedes del Carmen Flores Grijalba; Geovana Narciza de Jesús Altamirano Zabala; Margarita Susana Meneses Dávila; Mireya Estefanía Barahona Cisneros; Carla Elizabeth Ortega López

    2017-01-01

    Introducción: Dado el rol de la enfermería asociado a la prevención de errores y gestión de riesgos sanitarios en el ámbito asistencial, resulta de interés el estudio de la participación de Enfermería en la seguridad de los pacientes. Objetivo: Determinar los eventos adversos relacionados con los cuidados de enfermería en pacientes hospitalizados en un centro hospitalario de segundo nivel en la ciudad de Ibarra-Ecuador. Métodos: Se realizó una investigación observac...

  4. Trading Agents

    CERN Document Server

    Wellman, Michael

    2011-01-01

    Automated trading in electronic markets is one of the most common and consequential applications of autonomous software agents. Design of effective trading strategies requires thorough understanding of how market mechanisms operate, and appreciation of strategic issues that commonly manifest in trading scenarios. Drawing on research in auction theory and artificial intelligence, this book presents core principles of strategic reasoning that apply to market situations. The author illustrates trading strategy choices through examples of concrete market environments, such as eBay, as well as abst

  5. Diagnósticos de enfermagem relacionados à amamentação em unidade de alojamento conjunto

    Directory of Open Access Journals (Sweden)

    Evilene Pinto da Silva

    2013-04-01

    Full Text Available O estudo objetivou identificar, em uma unidade de Alojamento Conjunto, diagnósticos de enfermagem relacionados ao fenômeno da Amamentação de acordo com a taxonomia II da NANDA-I. Realizou-se um estudo descritivo-exploratório, envolvendo 83 mães e seus bebês, no período de fevereiro a abril de 2011. Os dados foram coletados por meio de um instrumento fundamentado na Teoria das Necessidades Humanas Básicas e, após tratamento estatístico, apresentados em tabelas. Nos resultados, o diagnóstico mais frequente foi Amamentação eficaz, com 65 (78,3%. Estima-se que os diagnósticos de enfermagem relacionados à Amamentação contribuirão para que os cuidados de enfermagem possam ser mais direcionados, de modo a promover uma assistência mais qualificada, humanizada e eficaz.

  6. Radioprotective Agents

    Directory of Open Access Journals (Sweden)

    Ilker Kelle

    2008-01-01

    Full Text Available Since1949, a great deal of research has been carried out on the radioprotective activity of various chemical substances. Thiol compounds, compounds which contain –SH radical, different classes of pharmacological agents and other compounds such as vitamine C and WR-2721 have been shown to reduce mortality when administered prior to exposure to a lethal dose of radiation. Recently, honey bee venom as well as that of its components melittin and histamine have shown to be valuable in reduction of radiation-induced damage and also provide prophylactic alternative treatment for serious side effects related with radiotherapy. It has been suggested that the radioprotective activity of bee venom components is related with the stimulation of the hematopoetic system.

  7. Medo, ansiedade e controle relacionados ao tratamento odontológico Fear, anxiety and control related to dental treatment

    Directory of Open Access Journals (Sweden)

    Kira Anayansi SINGH

    2000-06-01

    Full Text Available Nosso objetivo foi avaliar medo, ansiedade e controle relacionados ao tratamento odontológico. Os sujeitos foram 364 crianças da faixa etária de 7 a 13 anos. Três questionários com questões de múltipla escolha foram aplicados em grupos de 10 crianças. O primeiro questionário destinou-se à avaliação do medo ao tratamento odontológico e outras situações. Foi traduzido e adaptado do "Child’s Fear Survey Schedule"9 e contém 15 itens. O segundo questionário contém 20 itens relacionados as situações potencialmente produtoras de ansiedade. Foi traduzido e adaptado do "State Trait Anxiety Inventory for Children"16. O terceiro questionário contém 40 itens sendo 20 relacionados ao controle percebido e 20 ao controle desejado e foi traduzido e adaptado do "Child Dental Control Assessment"19. Em relação ao medo e ansiedade, a média dos escores foi mais elevada para o sexo feminino do que para o sexo masculino (P The aim of this study was to test fear, anxiety and control related to dental treatment. The subjects were 364 children with ages between 7 and 13 years. Three questionnaires with multiple choice questions were applied in groups of 10 children. The first instrument was the 15-item dental subscale from the Children’s Fear Survey Schedule9. The subjects rated their level of fear on a 5-point scale. The second survey instrument was the 20-item subscale from the State Trait Anxiety Inventory for Children16. This measure was used to capture how anxious the child was, in general. The third instrument was the Child Dental Control Assessment19. It contained 20 items to assess perceived control and 20 items to assess desired control. The results of the survey indicated that dental fear and anxiety were slightly higher for females when compared with male subjects (P < 0.05. Older children (11 to 13 years old obtained higher fear scores than younger ones (7 to 9 years old. Concerning perceived control, the results indicate that

  8. SENTIMENTOS RELACIONADOS COM A AUTO-IMAGEM DE IDOSOS SUBMETIDOS À AMPUTAÇÃO DE MEMBROS

    Directory of Open Access Journals (Sweden)

    Maria José D'Elboux Diogo

    Full Text Available O presente estudo é parte da monografia de DIOGO6 e tem por objetivo verificar junto a idosos submetidos à amputação de membros inferiores os sentimentos relacionados à sua auto-imagem. Os dados foram coletados com 25 pacientes internados e de ambulatório, de um hospital universitário governamental. A análise dos resultados nos 3ugere que os sentimentos relatados pelos pacientes submetidos à amputação há menos de 10 dias são diferentes dos referidos pelos idosos que tiveram membros amputados há um mês ou mais enquanto, a dependência foi manifestada nos dois grupos. Com relação às reações de parentes e amigos, em ambos os grupos houve semelhança.

  9. Sentimentos do adolescente relacionados ao fenômeno BULLYING: possibilidades para a Assistência de Enfermagem nesse contexto

    Directory of Open Access Journals (Sweden)

    Agnes Schutz de Oliveira

    2006-04-01

    Full Text Available O bullying é um fenômeno devastador podendo vir a afetar a auto-estima e a saúde mental dos adolescentes. Geralmente ocorre quando o adolescente é mais suscetível ou vulnerável às agressões verbais ou morais que lhes causam angústia e dor, principalmente quando ocorrido em ambiente escolar traduzindo-se como uma forma de exclusão social. Pode desencadear alguns problemas de saúde tais como a anorexia, bulimia, depressão, ansiedade e até mesmo o suicídio. A enfermagem, pautada com princípios de prevenir agravos de diversos males, preocupa-se também com esta intercorrência traumática na adolescência. O objetivo deste estudo foi identificar sentimentos que possam estar relacionados com o bullying em adolescentes alunos de 5ª a 8ª séries. Tratou-se de uma pesquisa descritiva de abordagem qualitativa, realizada em uma escola de segmento religioso conveniada com o estado. A coleta de dados ocorreu auxiliada por entrevistas gravadas, posteriormente transcritas e submetidas à análise temática. Os resultados mostraram que os sentimentos relacionados ao fenômeno são múltiplos e variados, sendo categorizados como aspectos de caráter positivo, aspectos de caráter negativo e aspectos de caráter necessário.

  10. Estigma relacionado a VIH/SIDA asociado con adherencia al tratamiento antirretroviral en pacientes de un hospital de Lima, Perú 2014

    Directory of Open Access Journals (Sweden)

    Jessica Hanae Zafra-Tanaka

    Full Text Available Objetivos.Determinar el nivel de estigma relacionado a VIH/SIDA y su asociación con la adherencia al tratamientoantirretroviral (TARV en pacientes de un hospital nacional de Lima, Perú. Materiales y métodos. Estudio transversal que incluyó a pacientes adultos que seguían el programa de TARV con un mínimo de seis meses. Se consideró el estigma como la desvalorización de la persona por tener la infección de VIH y se midió con la escala de Berger para estigma relacionado a VIH, la adherencia a la toma adecuada de los medicamentos fue medida con la encuesta Simplified medication adherence questionaire (SMAQ. Para evaluar los factores asociados a estigma se calcularon razones de prevalencia (RP usando la regresión de Poisson. Resultados. Se analizaron 339 encuestas, la mediana de edad fue 39 años (RIC: 16 donde 74,0% eran hombres. Se halló un estigma alto en 25,4% y moderado en 47,5% de los encuestados. Una reducción de 10 puntos en la escala de estigma relacionado a VIH/SIDA se asoció a un aumento de 5% de adherencia al TARV en hombres (RPa 0,95, IC95%: 0,91-0,99 y un aumento del 7% en mujeres (RPa 0,93, IC95%: 0,87-0,98. Conclusiones. Existe un alto nivel de estigma relacionado a VIH/SIDA y se asocia a la falta de adherencia al tratamiento con diferencias de acuerdo al sexo. Se recomiendan intervenciones dirigidas a reducir el estigma relacionado a divulgación de estatus en las mujeres y el relacionado a actitudes públicas en hombres.

  11. EXPERIENCIAS RELACIONADAS A UNA INTERVENCIÓN PARA REDUCIR EL ESTIGMA RELACIONADO AL VIH/SIDA ENTRE ESTUDIANTES DE MEDICINA EN PUERTO RICO

    OpenAIRE

    Cintrón-Bou, Francheska; Varas-Díaz, Nelson; Marzán-Rodríguez, Melissa; Neilands, Torsten B.

    2016-01-01

    Existe estigma relacionado al VIH. A las personas con VIH/SIDA-PCVS se les viola sus derechos y obstaculiza su bienestar mental/físico. Profesionales de la salud-PS son fuente de apoyo primordial, sin embargo estos/as le estigmatizan. Es útil adiestrar a PS en relación al estigma social. Implantamos la intervención para reducir el estigma relacionado al VIH/SIDA con 507 estudiantes de medicina. Resultó ser una intervención efectiva, hubo reducción en los niveles de estigma a partir de nuestra...

  12. Validação do envelhecimento como fator relacionado do diagnóstico de enfermagem memória prejudicada

    OpenAIRE

    Enaura Helena Brandão Chaves

    2008-01-01

    Objetiva-se validar o envelhecimento como Fator Relacionado do Diagnóstico de Enfermagem Memória Prejudicada (DEMP). Realizou-se o estudo em duas etapas metodológicas. A primeira etapa constou da validação de conteúdo das Características Definidoras do DEMP, através da Validação de Conteúdo Diagnóstico de Fehring (1987), da validação do conceito e dos Fatores Relacionados, incluindo-se o envelhecimento. Enviou-se 20 instrumentos para enfermeiros experts selecionados através dos critérios adap...

  13. Interacting agents in finance

    NARCIS (Netherlands)

    Hommes, C.; Durlauf, S.N.; Blume, L.E.

    2008-01-01

    Interacting agents in finance represent a behavioural, agent-based approach in which financial markets are viewed as complex adaptive systems consisting of many boundedly rational agents interacting through simple heterogeneous investment strategies, constantly adapting their behaviour in response

  14. Riot Control Agents

    Science.gov (United States)

    ... Submit What's this? Submit Button Facts About Riot Control Agents Interim document Recommend on Facebook Tweet Share Compartir What riot control agents are Riot control agents (sometimes referred to ...

  15. Selección de fragmentos diferenciales de ADNc relacionados con estrés hídrico en Ullucus tuberosus Loz. (Bassellaceae «olluco» (*

    Directory of Open Access Journals (Sweden)

    Mariela Romero-Carpio

    2013-05-01

    Full Text Available A partir de la expresión diferencial de ARNm de plántulas in vitro de dos accesiones de Ullucus tuberosus Loz. «olluco» altamente tolerantes a estrés osmótico, fueron seleccionados 31 fragmentos diferenciales de ADNc relacionados con tolerancia a sequía.

  16. Factores de riesgo sociales y ambientales relacionados con casos de leptospirosis de manejo ambulatorio y hospitalario, Turbo, Colombia

    Directory of Open Access Journals (Sweden)

    Dionisia Yusti

    2013-08-01

    Full Text Available Introducción. La leptospirosis es un problema de salud pública en el Urabá colombiano y poco se sabe sobre las condiciones ambientales y sociales de esta enfermedad en la región. Objetivo. Explorar algunos factores de riesgo relacionados con leptospirosis de manejo hospitalario y ambulatorio, en pacientes del municipio de Turbo durante los años 2010 y 2011. Materiales y métodos. Mediante un estudio descriptivo se exploraron factores relacionados conla exposición a Leptospira spp. (aspectos socio-demográficos, hábitos, condiciones físicas y de saneamiento de la vivienda, hacinamiento, fuentes de agua potable, presencia de roedores sinantrópicos y convivencia con animales en pacientes con leptospirosis que requirieron manejo hospitalario en el municipio de Turbo durante los años 2010 y 2011. Se utilizaron medidas estadísticas estandarizadas para estudios descriptivos. Resultados. Se encontró que el hábito de caminar descalzo en ambientes domésticos representó 4,27 (1,32-13,82 veces el riesgo para presentar leptospirosis de manejo hospitalario (p=0,012. El análisis multivariado exploratorio mostró que la presencia de fauna silvestre en las viviendas puede estar relacionada también con casos de manejo hospitalario. Este hallazgo representó 4,22 (1,13-15,72 veces el riesgo comparado con los casos ambulatorios que manifestaron no tener este tipo deanimales dentro de la vivienda (p=0,032. Conclusión. Este estudio plantea bases para diseñar e implementar intervenciones efectivas, orientadas desde el perfil de riesgos al que se exponen sus habitantes, en un área geográfica queexhibe una epidemiología dinámica de contexto complejo para leptospirosis.   doi: http://dx.doi.org/10.7705/biomedica.v33i0.1457

  17. Factores determinantes de las conductas de riesgo para ITS - HIV en los estudiantes de las Escuelas de Salud de la Universidad Alas Peruanas, Arequipa

    OpenAIRE

    Martínez Montes, José Carlos

    2010-01-01

    Los estudiantes de las Escuelas de Salud están continuamente expuestos al riesgo de accidentes ocupacionales en los centros asistenciales, donde realizan sus prácticas, así como a una vida sexual activa, en donde el contagio por agentes infecciosos como Hepatitis B, Hepatitis C y HIV, transmisibles por mecanismos relacionados con accidentes de trabajo sanitario y relaciones sexuales entre otros, resultan como consecuencia de las conductas de riesgo, en donde el nivel de conocimientos, las act...

  18. Atributos do Solo Relacionados com a Produção da Castanheira-do-Brasil (Bertholletia excelsa

    Directory of Open Access Journals (Sweden)

    Mirian Gomes Costa

    2017-05-01

    Full Text Available RESUMO Neste estudo foram analisados os atributos do solo relacionados com variações na produção de frutos da castanheira bem como o estado nutricional da espécie. As árvores foram selecionadas em parcela permanente (Caracaraí, RR e divididas em quatro classes de produção: alta, média, baixa e muito baixa. Em novembro de 2009, amostras de solo e folhas foram coletadas para se avaliar a fertilidade do solo, o número de esporos de fungos micorrízicos arbusculares e o estado nutricional das árvores. Árvores com maior produção de frutos ocorreram associadas a maior teor de Al trocável na camada de 0-20 cm do solo, bem como a menor valor de pH e saturação por bases. A variável discriminante resultante deste estudo não foi considerada como responsável por interferir no potencial produtivo da castanheira-do-brasil, mas serviu como indicativo de que árvores mais produtivas contribuem na remoção de bases trocáveis, favorecendo a acidificação do solo.

  19. Suporte relacionado ao cuidado em saúde ao doente com aids: o modelo de comboio e a enfermagem

    Directory of Open Access Journals (Sweden)

    Edilene Aparecida Araújo da Silveira

    2011-06-01

    Full Text Available O presente estudo teve como objetivo conhecer a relação e a troca de suporte entre o doente com AIDS e pessoas à sua volta. O estudo está baseado no modelo de comboio das relações sociais que tem como uma de suas características a representação da rede em três círculos concêntricos. Os participantes eram pessoas que estavam internadas e que falaram sobre o suporte relacionado ao cuidado em saúde proporcionado por pessoas próximas, ou seja, que pertenciam ao círculo interno do comboio. A maioria dos participantes descreveu o círculo como sendo composto por no máximo cinco integrantes, sendo que pessoas da família foram as mais citadas. Os profissionais de saúde precisam conhecer o paciente e seu comboio, reconhecendo-os no contexto psicossocial e cultural de forma a favorecer a aceitação da soropositividade, mudanças no estilo de vida, ajuda nos cuidados de saúde e adesão ao tratamento.

  20. Success factors in cause-related marketing projects Determinantes de suceso en cumplimiento de programas de marketing relacionado a causas Determinantes de sucesso na implementação de programas de marketing relacionado a causas

    Directory of Open Access Journals (Sweden)

    Maíse Soares Pereira

    2011-03-01

    Full Text Available Corporate social responsibility attempts to align organizational and social objectives. Alignment can be achieved by application of cause-related marketing (CRM methods. Therefore this article seeks to identify main determinants of success in CRM campaigns. This research was qualitative for an in depth study of three Brazilian companies. Results show that widespread communication, use of marketing mix, synergy between the cause and company business and long term action as well as a strong reputation for social responsibility are mainstays for success in CRM objectivesLa visión de responsabilidad social como recurso estratégico empresarial representa una manera de, aunque bajo consideraciones éticas, hacer conque objetivos organizacionales caminen lado a lado con objetivos sociales. Una de las formas encontradas para aliar tales propósitos se refiere al esfuerzo de utilización de herramientas de Marketing Relacionado a Causas (MRC. Así, la intención de este artículo es identificar el conjunto de factores que influencian el suceso de campañas de MRC, a partir de su adopción por las empresas más actuantes y representativas del estado del arte en esta área. Las campañas desarrolladas en tres empresas actuantes en Brasil fueron evaluadas basándose en el modelo de factores extraído de las propuestas de Adkins (1999 y de Pringle y Thompson (2000. Por lo tanto, la finalidad de este estudio fue alcanzada mediante la investigación cualitativa con casos múltiples. Factores como amplia divulgación y utilización de los componentes (mix de marketing, sinergia entre causa y negocio de la empresa y duración de largo plazo, aliados a fuerte reputación de responsabilidad social, independientemente de las campañas, fueron identificados como los pilares necesarios para el suceso en el alcance de las metas de campañas de MRCA visão de responsabilidade social como recurso estratégico empresarial representa uma maneira de, ainda que sob

  1. Factors associated to the development of hypothermia in the intraoperative period Factores relacionados al desarrollo de hipotermia en el período intraoperatorio Fatores relacionados ao desenvolvimento de hipotermia no período intra-operatório

    Directory of Open Access Journals (Sweden)

    Vanessa de Brito Poveda

    2009-04-01

    Full Text Available This study aimed to assess factors associated to body temperature changes intraoperatively in patients undergoing elective surgery. A prospective study including 70 patients was carried out in a charity hospital. A data collection instrument was developed and its face and content validity was established. The variables measured were operating room temperature and humidity and patient body temperature at different times. In the multivariate linear regression, the variables type of anesthesia, duration of anesthesia, body mass index, and operating room temperature were directly associated to mean body temperature. Nurses are responsible for planning and implementing effective interventions that can contribute to minimize costs and most importantly reduce hypothermia complications.La investigación tuvo como objetivo analizar los factores relacionados a las alteraciones de la temperatura corporal del paciente sometido a cirugía electiva en el período intraoperatorio. Para esto, se realizó un estudio de correlación, prospectivo, en un hospital filantrópico. Fue elaborado un instrumento y sometido a validación aparente y de contenido, el cual fue utilizado para recolectar datos de 70 pacientes. La temperatura y humedad de la sala de operación y la temperatura corporal del paciente, en diferentes momentos, fueron las variables mensuradas. En la regresión linear multivariada, las variables: tipo de anestesia, duración de la anestesia, índice de masa corporal y temperatura de la sala de operación estaban directamente relacionadas a la temperatura corporal promedio de los sujetos investigados. Es el enfermero quien debe planificar e implementar intervenciones efectivas que contribuyan para minimizar los costos y principalmente reducir las complicaciones asociadas a la hipotermia.A pesquisa teve como objetivo analisar os fatores relacionados às alterações da temperatura corporal do paciente submetido à cirurgia eletiva no período intra

  2. Reasoning about emotional agents

    OpenAIRE

    Meyer, J.-J.

    2004-01-01

    In this paper we discuss the role of emotions in artificial agent design, and the use of logic in reasoning about the emotional or affective states an agent can reside in. We do so by extending the KARO framework for reasoning about rational agents appropriately. In particular we formalize in this framework how emotions are related to the action monitoring capabilities of an agent.

  3. Factores psicosociales relacionados con la rehospitalización de pacientes con psicosis orgánica

    Directory of Open Access Journals (Sweden)

    Cortés-Padilla María Teresa

    2001-01-01

    Full Text Available Objetivo. Conocer los factores psicosociales relacionados con la frecuente rehospitalización de pacientes con psicosis orgánica. Material y métodos. Estudio de tipo observacional descriptivo, de corte transversal. La muestra estuvo formada por 33 pacientes del Hospital Psiquiátrico Guillermo Dávila, con Unidad de Medicina Familiar Número 10 del Instituto Mexicano del Seguro Social de la Ciudad de México, con psicosis orgánica y quienes durante los años de 1993-1994 presentaron más de dos rehospitalizaciones. Instrumentos: Entrevista grabada, o muestra de conversación de cinco minutos, para la emoción expresada (EE, cuestionarios mixtos para la Concepción de Enfermedad y la Relación médico-paciente. La validez y confiabilidad de los datos se establecieron con las pruebas de Kappa y Alpha de Cronbach y se efectuó análisis estadístico descriptivo e inferencial. Resultados. El 60.9% de los familiares presentan alto nivel de EE, es decir, expresan crítica, hostilidad o sobreinvolucramiento emocional; el 64.3% de los sujetos de la muestra conviven más de 35 horas a la semana con familiares que presentan Alta EE. Conclusiones. Altos niveles de EE estuvieron asociados con los frecuentes reingresos a hospitalización. Existe mayor conocimiento de las características de la enfermedad por parte del familiar que del paciente. La relación médico-paciente es satisfactoria pero no forma conciencia de enfermedad ni propicia apego al tratamiento terapeútico. El texto completo en inglés de este artículo está disponible en: http://www.insp.mx/salud/index.html

  4. Estudio de factores socioculturales relacionados con la donación voluntaria de sangre en las Américas

    Directory of Open Access Journals (Sweden)

    García Gutiérrez Marcela

    2003-01-01

    Full Text Available OBJETIVO: Obtener información de base sobre los conocimientos, actitudes y prácticas relacionados con la donación voluntaria de sangre, así como la capacidad instalada de los bancos de sangre para la atención de donantes. MÉTODOS: El estudio se realizó en 15 países de la Región: Argentina, Bolivia, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guatemala, Jamaica, Nicaragua, Panamá, Paraguay, Perú, República Dominicana y Venezuela, con la cooperación técnica de la Organización Panamericana de la Salud, oficina regional de la Organización Mundial de la Salud. Se utilizó una metodología formativa cualitativa mediante entrevistas a donantes, público en general y personal de salud, así como observación directa, grupos focales, pruebas de conocimientos y revisión documental. RESULTADOS: Se identificaron el conocimiento de las personas sobre la donación, sus creencias, percepciones y actitudes, sus barreras y motivaciones, al igual que los medios más eficaces para transmitir el mensaje a favor de la donación voluntaria. CONCLUSIONES: Esta información servirá como base para diseñar una estrategia en los países encaminada a promover la captación y lealtad de los donantes voluntarios de sangre. Esta estrategia podrá ser el sustento para llevar a la práctica los cambios necesarios en la atención y motivar a los donantes a regresar con regularidad a donar sangre.

  5. O papel do fator nuclear eritróide 2 relacionado ao fator 2 (Nrf2 no diabetes mellitus

    Directory of Open Access Journals (Sweden)

    Gabriela Fernandes Hahn

    2017-09-01

    Full Text Available O diabetes mellitus (DM é uma doença metabólica complexa. Sua etiologia é atribuída a uma combinação entre fatores genéticos, ambientais e de estilo de vida. Contudo, sabe-se que o estresse oxidativo desempenha papel crucial na patogênese do DM, acarretando em disfunção das células β pancreáticas e resistência à insulina. Neste contexto, o fator nuclear eritroide 2 relacionado ao fator 2 (Nrf2 é considerado o regulador mestre da resposta antioxidante do organismo, sendo um mecanismo de importância crítica para a manutenção da homeostase e sobrevivência celular. Todavia, a função do Nrf2 não se limita somente à resposta antioxidante. Ao interagir com outras vias metabólicas, o Nrf2 possui importante papel na regulação do metabolismo, atuando no metabolismo dos lipídios, manutenção da glicemia, resposta inflamatória, entre outros. Entretanto, a exata relação do Nrf2 com outras vias metabólicas ainda não é totalmente conhecida. Contudo, sabe-se que o comprometimento da função do Nrf2 é evidente na fisiopatologia do DM bem como no desenvolvimento de suas complicações clínicas. A ativação do Nrf2 protege contra os danos mediados pelo DM, podendo ser adequada uma intervenção exógena para aumentar a sua atividade. Palavras-chave: Complicações do diabetes; estresse oxidativo; antioxidantes; inflamação; obesidade

  6. Daño pulmonar agudo relacionado con la transfusión (Trali y Bartonelosis aguda

    Directory of Open Access Journals (Sweden)

    Douglas López de Guimaraes

    2006-07-01

    Full Text Available Se presenta el caso de un varón de 22 años procedente de la periferia de la ciudad de Huaraz, Perú, que acude al Hospital "Victor Ramos Guardia" de Huaraz con un tiempo de enfermedad de 14 días, febril, pálido e ictérico, en el frotis de sangre periférica se encuentran formas bacilares de Bartonella bacilliformis en 99% de la lámina; se inicia tratamiento antibiótico con ceftriaxona y ciprofloxacino. Al día siguiente se le indica transfusión de dos paquetes globulares (puesto que tenía 6,2 g/dL de Hb, dos horas después presenta dolor toráxico, tos seca exigente, vómitos, dificultad respiratoria y cianosis, en la auscultación se encuentran roncantes y crepitantes, la radiografía de tórax muestra infiltrado alveolar difuso a predominio derecho. Es trasladado a la UCI donde recibe oxígeno con máscara de reservorio, dopamina, corticoides y se inicia el monitoreo hemodinámico; responde en forma satisfactoria, sale de alta con frotis negativo a Bartonella bacilliformis. Es el primer caso de daño pulmonar agudo relacionado con la transfusión (TRALI asociado con Bartonelosis aguda con cuadro clínico - radiológico y evolución compatible, es importante distinguir entre la complicación pulmonar debido a la sepsis grave por Bartonelosis aguda, que puede producir un cuadro clínico similar y el TRALI.

  7. Identificación de un polimorfismo del gen Est9 relacionado con resistencia a piretroides en Rhipicephalus (Boophilus microplus

    Directory of Open Access Journals (Sweden)

    Edgar Diaz R.

    2013-10-01

    Full Text Available Objetivo. Mediante procedimientos de PCR-RFLP, detectar un polimorfismo en el gen Est9 de garrapatas Rhipicephalus (Boophilus microplus resistentes a piretroides en Ibagué, Colombia, determinando el grado de asociación entre los fenotipos y los genotipos resultantes. Materiales y métodos. El ADN de 30 teleoginas R. (Boophilus microplus fenotípicamente susceptibles, resistentes o medianamente resistentes a piretroides en una prueba de Drummond modificada, fue amplificado por PCR con cebadores específicos para obtener un fragmento de 372 pb del gen Est9, que fue sometido a digestión con la enzima EcoRI para estudiar los RFLPs generados y poder diferenciar los respectivos genotipos. El grado de asociación entre los fenotipos y los genotipos resultantes se determinó mediante la prueba exacta de Fisher. Resultados. Luego de digerir el fragmento con la endonucleasa, se generaron dos segmentos en teleoginas con algún nivel de resistencia, mientras en las teleoginas susceptibles no hubo división del fragmento de 372 pb, demostrándose así la presencia de una mutación puntual y los genotipos homocigoto natural, homocigoto mutante y heterocigoto. Las diferencias altamente significativas (p<0.01 entre teleoginas susceptibles y aquellas con algún nivel de resistencia, mostraron una relación directa entre el genotipo y el fenotipo con un nivel de confianza de p=0.0009852. Conclusiones. Se comprobó, por primera vez en Colombia, la presencia de una mutación puntual en el gen Est9 de garrapatas R. (Boophilus microplus resistentes a piretroides, sugiriendo la necesidad de realizar estudios para detectar alteraciones moleculares en otros genes relacionados con quimioresistencia.

  8. Chemical warfare agents.

    Science.gov (United States)

    Kuca, Kamil; Pohanka, Miroslav

    2010-01-01

    Chemical warfare agents are compounds of different chemical structures. Simple molecules such as chlorine as well as complex structures such as ricin belong to this group. Nerve agents, vesicants, incapacitating agents, blood agents, lung-damaging agents, riot-control agents and several toxins are among chemical warfare agents. Although the use of these compounds is strictly prohibited, the possible misuse by terrorist groups is a reality nowadays. Owing to this fact, knowledge of the basic properties of these substances is of a high importance. This chapter briefly introduces the separate groups of chemical warfare agents together with their members and the potential therapy that should be applied in case someone is intoxicated by these agents.

  9. Desarrollo de la Escala sobre el Estigma Relacionado con el VIH/SIDA para Profesionales de la Salud mediante el uso de métodos mixtos123

    Science.gov (United States)

    Varas-Díaz, Nelson; Neilands, Torsten B.; Guilamo-Ramos, Vincent; Cintrón Bou, Francheska N.

    2009-01-01

    El estigma relacionado con el VIH/SIDA continúa siendo un obstáculo para la prevención primaria y secundaria del VIH. Las consecuencias para las personas que viven con la enfermedad han sido muy documentadas y continúan siendo una gran preocupación para las personas que proveen servicios de salud y para aquellas que investigan el tema. Estas consecuencias son preocupantes cuando el estigma emana de profesionales de la salud porque se puede limitar el acceso a los servicios. Uno de los principales obstáculos para la investigación del estigma relacionado con el VIH en Puerto Rico es la falta de instrumentos cuantitativos para evaluar las manifestaciones del estigma entre profesionales de la salud. El objetivo principal de este estudio fue desarrollar y probar las propiedades psicométricas de una escala sobre el estigma relacionado con el VIH/SIDA culturalmente apropiada para personas que proveen servicios de salud puertorriqueñas y desarrollar una versión corta de la escala que pudiera usarse en escenarios clínicos con tiempo limitado. El instrumento desarrollado estuvo basado en evidencia cualitativa recopilada entre profesionales y estudiantes de profesiones de la salud puertorriqueños/as (n=80) y administrado a una muestra de 421 profesionales de la salud en adiestramiento. La escala contenía 12 dimensiones del estigma relacionado con el VIH/SIDA. El análisis cuantitativo corroboró 11 de ellas, teniendo como resultado un instrumento con validez y confiabilidad satisfactoria. Estas dimensiones, a su vez, fueron subcomponentes de un factor de estigma general superior. PMID:20333258

  10. EXPERIENCIAS RELACIONADAS A UNA INTERVENCIÓN PARA REDUCIR EL ESTIGMA RELACIONADO AL VIH/SIDA ENTRE ESTUDIANTES DE MEDICINA EN PUERTO RICO

    Science.gov (United States)

    Cintrón-Bou, Francheska; Varas-Díaz, Nelson; Marzán-Rodríguez, Melissa; Neilands, Torsten B.

    2016-01-01

    Existe estigma relacionado al VIH. A las personas con VIH/SIDA-PCVS se les viola sus derechos y obstaculiza su bienestar mental/físico. Profesionales de la salud-PS son fuente de apoyo primordial, sin embargo estos/as le estigmatizan. Es útil adiestrar a PS en relación al estigma social. Implantamos la intervención para reducir el estigma relacionado al VIH/SIDA con 507 estudiantes de medicina. Resultó ser una intervención efectiva, hubo reducción en los niveles de estigma a partir de nuestra intervención y diferencias significativas con el grupo control (p≤.05). Generar espacios de adiestramiento para atender el estigma relacionado al VIH/SIDA es pertinente para la psicología comunitaria porque colaboramos en la reducción de actitudes estigmatizantes que afectan adversamente la prevención de nuevas infecciones, la adherencia al tratamiento antirretroviral y la calidad de vida. PMID:27829690

  11. Perfil das vítimas de acidentes de transporte terrestre relacionados ao trabalho em unidades de saúde sentinelas de Pernambuco, 2012 - 2014

    Directory of Open Access Journals (Sweden)

    Caroline Cordeiro Souto

    Full Text Available Resumo OBJETIVO: descrever o perfil das vítimas de acidentes de transporte terrestre (ATT relacionados ao trabalho, notificados nas Unidades Sentinelas de Informação sobre Acidentes de Transporte Terrestre no estado de Pernambuco, Brasil, no período 2012-2014. MÉTODOS: estudo descritivo das vítimas (fatais e não fatais de acidente de transporte terrestre relacionados ao trabalho, notificados em 21 Unidades Sentinelas de Informação sobre ATT de Pernambuco. RESULTADOS: dos 10.691 casos notificados, 87,8% ocorreram entre homens; do total dos registros, 69,0% concentraram-se na faixa etária de 20 a 39 anos; os setores com mais trabalhadores acidentados foram Transporte (24,4% e Comércio (21,3%; a maioria das vítimas eram condutores (82,0% e a motocicleta o meio de locomoção mais utilizado no momento do acidente (77,0%. CONCLUSÃO: entre as vítimas, predominaram motociclistas jovens e do sexo masculino; os achados poderão subsidiar ações intersetoriais de prevenção dos ATT relacionados ao trabalho, adequadas ao perfil das vítimas.

  12. Nursing diagnoses related to skin: operational definitions Diagnósticos de enfermería relacionados a la piel: definiciones operacionales Diagnósticos de enfermagem relacionados à pele: definições operacionais

    Directory of Open Access Journals (Sweden)

    Maria Andréia Silva Ribeiro

    2012-10-01

    Full Text Available OBJECTIVE: to validate the operational definitions of the defining characteristics and risk factors of the three NANDA International (NANDA-I nursing diagnoses and to revise these diagnoses' definitions. METHOD: content validation of nursing diagnosis. 146 defining characteristics and risk factors were identified in the literature in Brazilian and international databases. This was followed by content validation of the definitions of these diagnoses (presented by NANDA-I and of the operational definitions (developed by the researchers of the defining characteristics and risk factors, carried out by six expert nurses, regarding relevance, clarity and comprehensiveness. RESULT: of the 146 defining characteristics and risk factors, 22 were considered redundant and were excluded. The experts proposed changing the definitions of the diagnoses of Impaired Tissue Integrity and Risk for Impaired Skin Integrity. It was possible to identify various defining characteristics and risk factors which are not present in the NANDA-I taxonomy but which are indicated in the literature. CONCLUSION: the process attained its objective of producing valid operational definitions for defining characteristics and risk factors, which will permit the undertaking of validation studies for these diagnoses. The study's contribution to advancing scientific knowledge consists in its presenting clearer operational definitions for these diagnoses and a higher number of defining characteristics and risk factors, which will assist the nurses in the identification and use of the same with greater accuracy in clinical practice.OBJETIVO: validar las definiciones operacionales de las características definidoras y factores de riesgo de los tres diagnósticos de enfermería relacionados a la piel de la NANDA International (NANDA-I y revisar las definiciones de eses diagnósticos. MÉTODO: validación de contenido de diagnóstico de enfermería. Se identificaron 146 caracter

  13. Radiopharmaceutical scanning agents

    International Nuclear Information System (INIS)

    1976-01-01

    This invention is directed to dispersions useful in preparing radiopharmaceutical scanning agents, to technetium labelled dispersions, to methods for preparing such dispersions and to their use as scanning agents

  14. Taskable Reactive Agent Communities

    National Research Council Canada - National Science Library

    Myers, Karen

    2002-01-01

    The focus of Taskable Reactive Agent Communities (TRAC) project was to develop mixed-initiative technology to enable humans to supervise and manage teams of agents as they perform tasks in dynamic environments...

  15. QUEMERINA E FATORES RELACIONADOS AO RISCO CARDIOVASCULAR EM CRIANÇAS E ADOLESCENTES: UMA REVISÃO SISTEMÁTICA

    Directory of Open Access Journals (Sweden)

    Vanessa Sequeira Fontes

    2018-01-01

    Full Text Available RESUMO Objetivo: Sintetizar os achados sobre a quemerina e os fatores relacionados ao risco cardiovascular em crianças e adolescentes. Fontes de dados: Realizou-se uma revisão sistemática de acordo com os itens propostos pela diretriz PRISMA nas bases de dados PubMed, Science Direct e Lilacs. Utilizaram-se os descritores chemerin de forma associada a children e adolescent, sem limite de tempo. A pesquisa limitou-se a artigos originais realizados com seres humanos, em língua inglesa, excluindo-se a população adulta e idosa, assim como os artigos de revisão, comunicação breve, cartas e editoriais. Síntese dos dados: Após análise dos estudos por dois revisores, de forma independente, segundo os critérios de elegibilidade, permaneceram na revisão sete artigos, publicados entre 2012 e 2016. Foram incluídos estudos de delineamento transversal, prospectivo, coorte e caso-controle. A importância da adipocina quemerina nos fatores de risco para doenças cardiovasculares é demonstrada por meio de sua associação com obesidade e diabetes melito, assim como com parâmetros clínicos, antropométricos e bioquímicos. Entretanto, a força da evidência dos estudos é relativamente baixa, em função da heterogeneidade das publicações, destacando-se como limitações o número reduzido das amostras e sua ausência de representatividade, a falta de padronização dos métodos de dosagem, o delineamento transversal de grande parte dos estudos e a impossibilidade de extrapolação dos resultados. Conclusões: A desregulação da quemerina provocada pelo aumento de tecido adiposo pode contribuir para o aparecimento de doenças cardiovasculares, sugerindo que tal adipocina tem papel relevante na identificação precoce de indivíduos em risco.

  16. Polimorfismo genético relacionado con la probabilidad de desarrollar asma ocupacional en trabajadores expuestos a isocianatos

    Directory of Open Access Journals (Sweden)

    Gaetano Pepe Betancourt

    2014-03-01

    Full Text Available Introducción: El desarrollo tecnológico ha traído como consecuencia el uso de sustancias químicas potencialmente perjudiciales para la salud de los trabajadores. Particularmente el uso de isocianatos ha resultado en una mayor morbilidad de patología respiratoria, especialmente el asma. Considerando que no todos los trabajadores expuestos desarrollan la enfermedad se ha propuesto un modelo de interacción gen-medioambiental, el cual trata de explicar la predisposición genética que tienen algunos individuos a desarrollar asma ocupacional y otros no. Objetivo: Conocer la evidencia científica relacionada con el polimorfismo genético y la susceptibilidad que tienen los trabajadores expuestos a isocianatos a desarrollar asma ocupacional. Metodología: Se realizó una revisión sistemática mediante una búsqueda bibliográfica utilizando las bases de datos PubMedline, así como en los repositorios Dialnet y ELSEVIER. Se extrajeron los artículos relacionados al objetivo de esta revisión, no se aplicaron filtros de temporalidad, utilizándose los siguientes descriptores: MeSH Major Topic, MeSH Terms. El periodo de búsqueda fue desde el 20 de noviembre de 2013 y finalizó el 15 de diciembre de 2013. El nivel de evidencia se estableció de acuerdo a los criterios GRADE. Resultados: Se analizaron a texto completo 42 artículos, la evidencia científica se sustentó en 11 estudios de casos-controles. Dada la complejidad del polimorfismo genético asociado con la expresión fenotípica de la enfermedad, como limitación de los estudios, los autores coinciden que el tamaño muestral no es suficientemente grande, sin embargo después de ajustar los factores de confusión los artículos encontrados tuvieron un nivel de evidencia B de GRADE. Conclusión: La genética tiene una influencia significativa en el asma ocupacional inducida por isocianatos. El peso de la susceptibilidad genética y de la interacción gen-medioambiente aún no se han

  17. Conocimientos, actitudes y habilidades de los adolescentes escolarizados del sector público de Barranquilla (Colombia relacionados con su sexualidad

    Directory of Open Access Journals (Sweden)

    Rodrigo Barceló Martínez

    2013-01-01

    Full Text Available Objetivo: Determinar los conocimientos, actitudes y prácticas de los adolescentes esco- larizados del sector público de Barranquilla (Colombia relacionados con su sexualidad. Materiales y métodos: Estudio descriptivo transversal, en una muestra probabilística de tamaño mínimo de 2460 adolescentes de edades entre 10 a 19 años, de ambos sexos, de los grados 6 a 11 (bachillerato. Los datos fueron recolectados mediante la técnica de encuesta utilizando un formulario autodiligenciado. Resultados: el 58 % de los encuestados eran mujeres; y cabe destacar que un 1% refirió que tenía algún tipo de relación estable. Entre los principales resultados están: padres como modelo para seguir; poco modelaje de profesores; inicio temprano de relaciones sexuales en ambos sexos (en mujeres 14,76 años [±1.6] y en hombres 13,79 años [±2,12]; expectativas poco claras de relaciones sexuales futuras (21 % planea tener ≥2 parejas sexuales no al mismo tiempo y 8,6 % al mismo tiempo; segmentos de adolescentes que tienen relaciones sexuales en grupo (12.7 % de hombres vs. 4% de mujeres [p0,05] y mecanismos de transmisión, pero poca aplicación del condón y otras medidas de prevención e identifica- ción de falencias en la educación sexual de los adolescentes. Conclusiones: Existe un déficit grande en el proceso de educación, que se refleja en los resultados, lo que implica hacer ajustes en los programas de promoción de la salud sexual y reproductiva ofrecidos por el ente territorial a través de sus secretarías de Salud y Educación de Barranquilla. De igual manera, se detectan inconsistencias entre el grado de conocimiento con las actitudes y prácticas de los adolescentes, lo cual incide negativamente en el desarrollo de su sexualidad.

  18. Algunos aspectos relacionados con la planificación familiar en un estudio realizado en 63 comunidades costarricenses

    Directory of Open Access Journals (Sweden)

    Rodrigo Gutiérrez

    2015-07-01

    Full Text Available El acelerado crecimiento que ha experimentado la población costarricense en las últimas décadas y la proyección de la misma, ha sido motivo de preocupación y estudio por parte de especialistas en el campo y autoridades nacionales. El desarrollo económico y social de la nación costarricense ha dejado saldos muy importantes de pobreza que ha sido comentado en otro trabajo (1. Los Índices de desarrollo económico, que han sido muy altos, si se proyectan, no van a satisfacer las necesidades de todo orden del sector mayoritario de la población. Hay razones importantes para creer que si la población y la economía continúan desarrollándose al ritmo actual, las diferencias económicas y sociales entre los estratos altos y los estrados bajos de la sociedad costarricense serán más profundas a la vez que, cuantitativamente, la población marginada será aún mayor en las décadas del 80 y 90, que en la actualidad. Por otro lado, conceptos modernos bien definidos de la salud materno infantil, así como de tipo social y educacional, han creado una corriente favorable que impulsa la Planificación Familiar como proceso conveniente en la sociedad moderna. Entendida ésta como el conjunto de conocimientos psicobiosociales que los padres deben poseer para decidir sobre el número de hijos y la frecuencia del nacimiento de éstos, con el propósito de fortalecer la unidad familiar y garantizar la paternidad responsable. El gobierno de la República y varios grupos privados han mantenido una activa acción en el campo de la Planificación Familiar en los últimos años. Todo parece indicar que el futuro estos programas se intensificarán. Por estas razones, se creyó conveniente investigar en recientes encuestas realizadas, algunos aspectos relacionados con la Planificación Familiar, que pudieran mejorar la eficiencia de esos programas, o por lo menos, contribuir al conocimiento de las características de algunas actitudes importantes del

  19. Impacto da terapia cognitivo-comportamental nos fatores neurobiológicos relacionados à resiliência

    Directory of Open Access Journals (Sweden)

    Carlos Eduardo Norte

    2011-01-01

    Full Text Available A resiliência, como uma variável de desfecho, tem sido largamente negligenciada no campo terapêutico. Nosso objetivo foi investigar os efeitos da terapia cognitivo-comportamental (TCC nos marcadores neurobiológicos de resiliência em pacientes com transtorno de estresse pós-traumático (TEPT. Nesta pesquisa experimental de caso único, foram acessadas variáveis fisiológicas (frequência cardíaca, frequência respiratória, tônus vagal cardíaco, balanço simpático e condutância da pele e neuroendócrinas (cortisol e de-hidroepiandrosterona - DHEA e medidas psicométricas de autorrelato (afeto negativo, resiliência, sintomas de TEPT, depressão, ansiedade e apoio social. Foram medidas as respostas fisiológicas, neuroendócrinas e psicométricas em repouso antes e após quatro meses de TCC. O paciente era um homem de 45 anos que sofreu dois assaltos com arma de fogo e não respondeu adequadamente ao tratamento farmacológico com paroxetina. A TCC levou a uma redução da frequência cardíaca, frequência respiratória, balanço simpático, condutância da pele e cortisol, bem como a um aumento no tônus vagal e DHEA. Além disso, a TCC promoveu redução na pontuação dos sintomas de TEPT, depressão, ansiedade e afeto negativo e aumento da pontuação de resiliência e apoio social. Nossos dados sugerem que a TCC aumenta os fatores relacionados à resiliência (DHEA, tônus vagal, autorrelato de resiliência e apoio social. Isso não é somente "antipatológico", mas também pode ser considerado "pró-bem-estar". Adicionalmente, nossos resultados mostram a relevância da investigação dos efeitos do tratamento psicológico em múltiplos sistemas neurobiológicos no mesmo paciente com TEPT, visando desvendar as bases neurobiológicas dos fatores de resiliência.

  20. Factores y mecanismos relacionados con la dormancia en tubérculos de papa. Una revisión

    Directory of Open Access Journals (Sweden)

    Rodriguez Luis Ernesto

    2010-08-01

    Full Text Available Los tubérculos de la papa (Solanum tuberosum L., al momento
    de la cosecha y por un tiempo determinado, se encuentran en
    estado dormante. La dormancia se induce con el inicio de la
    tuberización y se define como un período en el cual no ocurre
    ningún crecimiento visible de los brotes. Las hormonas vegetales
    están involucradas en todas las fases de progresión de
    la dormancia. Si bien el ácido abscísico (ABA y el etileno son
    necesarios para su inducción, sólo el primero se requiere para
    su mantenimiento. Los niveles de ABA se incrementan durante
    la formación de los tubérculos, se mantienen constantes durante
    la dormancia y disminuyen con el crecimiento activo de los
    brotes. Un incremento en los niveles del ácido giberélico (AG
    es necesario para inducir la formación del tubérculo, mientras
    que una sensibilidad mayor a las citoquininas es determinante
    para la pérdida de la dormancia. Cambios en los contenidos de
    ácido indol acético (AIA y AG , están relacionados con la regulación
    del crecimiento del brote una vez se rompe la dormancia.
    Se ha comprobado que un factor importante, que contribuye
    tanto a la inducción de la tuberización como a la pérdida de la
    dormancia, es el flujo simplástico que controla la asignación de
    azúcares, el cual se inicia con un meristemo apical dormante
    aislado simplásticamente. La pérdida de dormancia se asocia
    con la conexión simplástica del meristemo del brote con la red
    de floema del tubérculo, y con una descarga simplástica en la
    región de la yema, todo lo cual favorece el crecimiento activo
    de los nuevos brotes.

  1. Análisis de factores relacionados con hipercapnia crónica en la distrofia miotónica

    Directory of Open Access Journals (Sweden)

    Patricia K. Aruj

    2013-12-01

    Full Text Available La distrofia miotónica (DM es la distrofia muscular más común en adultos. Diversos factores pueden explicar la retención crónica de CO2. La selección de pacientes, diferentes estadios evolutivos y formas de evaluación, pueden explicar los resultados disímiles al respecto. Nuestros objetivos fueron caracterizar la función respiratoria y analizar los factores relacionados con la retención crónica de CO2 en la DM. Se incluyeron 27 pacientes ambulatorios consecutivos, estables clínicamente y se los agrupó como normocápnicos e hipercápnicos (PaCO2 ≥ 43 mm Hg. Se determinaron capacidad vital forzada (FVC, presiones estáticas máximas, tiempo de apnea voluntaria, escala de Epworth y gases arteriales. La quimiosensibilidad al CO2 se evaluó mediante la reinhalación de CO2 (método de Read. La pendiente ∆P0.1/∆PCO2 expresa la quimiosensibilidad al CO2. El 59.3% tenían hipercapnia. La FVC y la fuerza muscular respiratoria fueron normales o mostraron disminución leve a moderada, sin diferencias significativas en ambos grupos. La inadecuada respuesta al CO2 (pendientes ∆P0.1/∆PCO2 bajas (< 0.1 cmH2O/mm Hg o planas se asoció con hipercapnia (p < 0.005 y ésta significó un riesgo 11.6 veces mayor de inadecuada respuesta al CO2. El grupo con pendiente ∆P0.1/∆PCO2 baja-plana mostró mayor PaCO2 (p = 0.0017 y tiempo de apnea voluntaria más prolongado (p = 0.002. Concluimos que, en nuestros pacientes con DM, la hipercapnia crónica se asoció a la presencia de anomalías del control central de la respiración. Estos resultados permiten explicar los informes previos que describen la llamativa ocurrencia de insuficiencia respiratoria postoperatoria y las dificultades en el proceso de desvinculación de asistencia ventilatoria mecánica en estos pacientes.

  2. Users, Bystanders and Agents

    DEFF Research Database (Denmark)

    Krummheuer, Antonia Lina

    2015-01-01

    Human-agent interaction (HAI), especially in the field of embodied conversational agents (ECA), is mainly construed as dyadic communication between a human user and a virtual agent. This is despite the fact that many application scenarios for future ECAs involve the presence of others. This paper...

  3. Asymptotically Optimal Agents

    OpenAIRE

    Lattimore, Tor; Hutter, Marcus

    2011-01-01

    Artificial general intelligence aims to create agents capable of learning to solve arbitrary interesting problems. We define two versions of asymptotic optimality and prove that no agent can satisfy the strong version while in some cases, depending on discounting, there does exist a non-computable weak asymptotically optimal agent.

  4. Reasoning about emotional agents

    NARCIS (Netherlands)

    Meyer, J.-J.

    In this paper we discuss the role of emotions in artificial agent design, and the use of logic in reasoning about the emotional or affective states an agent can reside in. We do so by extending the KARO framework for reasoning about rational agents appropriately. In particular we formalize in

  5. Radiographic scanning agent

    International Nuclear Information System (INIS)

    Bevan, J.A.

    1983-01-01

    This invention relates to radiodiagnostic agents and more particularly to a composition and method for preparing a highly effective technetium-99m-based bone scanning agent. One deficiency of x-ray examination is the inability of that technique to detect skeletal metastases in their incipient stages. It has been discovered that the methanehydroxydiphosphonate bone mineral-seeking agent is unique in that it provides the dual benefits of sharp radiographic imaging and excellent lesion detection when used with technetium-99m. This agent can also be used with technetium-99m for detecting soft tissue calcification in the manner of the inorganic phosphate radiodiagnostic agents

  6. Agente adaptable y aprendizaje

    Directory of Open Access Journals (Sweden)

    Arturo Angel Lara Rivero

    2013-05-01

    Full Text Available En este trabajo se contrasta el concepto de agente programado con el de agente complejo adaptable, se presenta una nueva visión ligada al aprendizaje y la estructura del agente. La imagen del agente se analiza considerando los modelos internos, la práctica, el concepto de rutina y la influencia en su comportamiento, y la importancia del aprendizaje ex ante y ex post. Por último se muestra que la resolución de problemas está sujeta a restricciones del agente y se describen las formas de explorar el espacio de soluciones mediante tres tipos de exploración: exhaustiva, aleatoria y selectiva.

  7. Moral actor, selfish agent.

    Science.gov (United States)

    Frimer, Jeremy A; Schaefer, Nicola K; Oakes, Harrison

    2014-05-01

    People are motivated to behave selfishly while appearing moral. This tension gives rise to 2 divergently motivated selves. The actor-the watched self-tends to be moral; the agent-the self as executor-tends to be selfish. Three studies present direct evidence of the actor's and agent's distinct motives. To recruit the self-as-actor, we asked people to rate the importance of various goals. To recruit the self-as-agent, we asked people to describe their goals verbally. In Study 1, actors claimed their goals were equally about helping the self and others (viz., moral); agents claimed their goals were primarily about helping the self (viz., selfish). This disparity was evident in both individualist and collectivist cultures, attesting to the universality of the selfish agent. Study 2 compared actors' and agents' motives to those of people role-playing highly prosocial or selfish exemplars. In content (Study 2a) and in the impressions they made on an outside observer (Study 2b), actors' motives were similar to those of the prosocial role-players, whereas agents' motives were similar to those of the selfish role-players. Study 3 accounted for the difference between the actor and agent: Participants claimed that their agent's motives were the more realistic and that their actor's motives were the more idealistic. The selfish agent/moral actor duality may account for why implicit and explicit measures of the same construct diverge, and why feeling watched brings out the better angels of human nature.

  8. Transtorno afetivo bipolar: carga da doença e custos relacionados Bipolar disorder: burden of disease and related costs

    Directory of Open Access Journals (Sweden)

    Anna Maria Niccolai Costa

    2008-01-01

    Full Text Available CONTEXTO: O transtorno afetivo bipolar (TAB é uma doença recorrente, crônica e grave. Comorbidades psiquiátricas e físicas, aumento do risco de suicídio, maior utilização de serviços de saúde e prejuízo na esfera social/profissional aumentam significativamente a carga e custos relacionados à doença. OBJETIVOS: Revisar aspectos clínicos, de carga da doença e conseqüentes desfechos financeiros do TAB. MÉTODOS: Pesquisa de base de dados MEDLINE/PubMed utilizando os termos bipolar disorder, epidemiology, burden of disease, comorbidity, cost of illness, outcomes e financial consequences, publicados entre 1980 e 2006. RESULTADOS: O TAB apresenta alta comorbidade com outros transtornos, o que agrava seu prognóstico e eleva os custos com os serviços de saúde. Os indivíduos com TAB apresentam mais fatores de risco cardiovascular e, conseqüentemente, maior risco de morte por evento cardíaco. O atraso e o erro diagnóstico no TAB elevam consideravelmente a carga e os custos da doença. CONCLUSÕES: As comorbidades, o risco de suicídio, o prejuízo social/profissional e a baixa adesão ao tratamento contribuem para a alta carga e os custos associados à doença. A pesquisa de comorbidades pode ajudar os médicos a ajustarem suas estratégias de tratamento, considerando cuidadosamente todos os fatores de risco e custos associados, fatores estes que devem ser levados em conta também pelos profissionais que trabalham com gestão de saúde, tanto no setor privado quanto público.BACKGROUND: Bipolar disorder (BD is a recurrent, chronic and severe disease. Mental and physical comorbidities, risk of suicide, health services use and impairment of social and professional domains significantly worsen the burden and increase the costs of illness. OBJECTIVES: Review clinical aspects, burden of disease, and consequent financial outcomes of BD. METHODS: MEDLINE/PubMed database search using the terms bipolar disorder, epidemiology, burden of

  9. Factores relacionados con el descontrol de la presión arterial Factors associated with uncontrolled hypertension

    Directory of Open Access Journals (Sweden)

    Oliva Mejía-Rodríguez

    2009-08-01

    Full Text Available OBJETIVO: Evaluar las características de la atención del paciente hipertenso, y su relación con el descontrol de la presión arterial, en una unidad de medicina familiar. MATERIAL Y MÉTODOS: Diseño: estudio transversal. Se revisó la mitad de 8 080 (4 040 expedientes. Se registraron las características de los pacientes, los médicos tratantes y la unidad de atención. RESULTADOS: Se encontraron como factores asociados a la hipertensión descontrolada la edad (RM, 1.43; IC95%: 1.015-1.030, IMC (RM, 1.03; IC95%: 1.02-1.05, creatinina (RM, 1.16; IC95%: 1.03-1.30, tomar tres o más fármacos antihipertensivos (RM, 1.48; IC95%: 1.31-1.07, ser atendido por un médico con más de 20 años de antigüedad (RM, 1.21; IC95%: 1.06-1.39, sin especialidad (RM, 1.43; IC95%: 1.20-1.71 y ser atendido en el turno matutino (RM, 1.21; IC95%: 1.07-1.56. CONCLUSIONES: La presión arterial está bien controlada en la mayoría de los pacientes. En el descontrol de la presión arterial intervienen factores relacionados con el paciente mismo, pero las características del sistema de salud también tienen un papel significativo.OBJECTIVE: To assess health care characteristics for hypertensive patients and their association with uncontrolled hypertension in a primary care outpatient clinic. MATERIAL AND METHODS: Design: cross-sectional.A review was conducted of 50% of 8080 (n= 4040 files. Patient, physician and primary health care clinic characteristics were recorded. RESULTS: The factors associated with uncontrolled hypertension were: age (OR, 1.43; CI95% : 1.015-1.030, BMI (OR, 1.03; CI95%: 1.02-1.05, creatinine serum levels (OR, 1.16; CI95%: 1.03-1.30, three or more different antihypertensive drugs (OR, 1.48; CI95%: 1.31-1.07, to be treated by a physician with more than 20 years of medical practice (OR, 1.21; CI95%; 1.06-1.39 or by a non-specialist physician (OR, 1.43; CI95%: 1.20-1.71 and to be treated in the morningshift (OR, 1.21; CI95%: 1.07- 1.56. CONCLUSIONS

  10. Agent Architectures for Compliance

    Science.gov (United States)

    Burgemeestre, Brigitte; Hulstijn, Joris; Tan, Yao-Hua

    A Normative Multi-Agent System consists of autonomous agents who must comply with social norms. Different kinds of norms make different assumptions about the cognitive architecture of the agents. For example, a principle-based norm assumes that agents can reflect upon the consequences of their actions; a rule-based formulation only assumes that agents can avoid violations. In this paper we present several cognitive agent architectures for self-monitoring and compliance. We show how different assumptions about the cognitive architecture lead to different information needs when assessing compliance. The approach is validated with a case study of horizontal monitoring, an approach to corporate tax auditing recently introduced by the Dutch Customs and Tax Authority.

  11. Stabilized radiographic scanning agents

    International Nuclear Information System (INIS)

    Fawzi, M.B.

    1982-01-01

    Stable compositions useful as technetium 99m-based scintigraphic agents comprise gentisic acid or a pharmaceutically-acceptable salt or ester thereof in combination with a pertechnetate reducing agent or dissolved in pertechnetate-99m (sup(99m)TcOsub(4)sup(-)) solution. The compositions are especially useful in combination with a phosphate or phosphonate material that carries the radionuclide to bone, thus providing a skeletal imaging agent

  12. Impacto na qualidade de vida de um programa educacional para prevenção de distúrbios osteomusculares relacionados ao trabalho (LERDORT)

    OpenAIRE

    Antonio Cardoso dos Santos

    2009-01-01

    Introdução: Os Distúrbios Osteomusculares Relacionados ao Trabalho (LERDORT) são um grande problema em saúde pública e frequentemente são causas de incapacidade temporária ou permanente. LERDORT constitui uma síndrome que se manifesta por patologias diversas: sinovites, tenossinovites, neurites, síndrome miofascial, epicondilites, tendinites, bursites, que acometem principalmente os membros superiores, coluna, mas também os membros inferiores. São de etiologia multifatorial: ergonômicas, orga...

  13. Identificación de distintos loci de susceptibilidad relacionados al desarrollo de diabetes de inicio temprano y enfermedad cardiovascular en familias mexicanas

    OpenAIRE

    Canizales-Quinteros, Samuel; Huertas-Vázquez, Adriana; Riba-Ramírez, Laura; Monroy-Guzmán, Adriana; Domínguez-López, Aarón; Romero-Hidalgo, Sandra; Aguilar-Salinas, Carlos; Rodríguez-Torres, Maribel; Ramírez-Jiménez, Salvador; Tusié-Luna, María Teresa

    2005-01-01

    La enfermedad arterial coronaria y la diabetes mellitus figuran entre las primeras causas de mortalidad y morbilidad en México. Factores genéticos juegan un papel fundamental en el desarrollo de estas entidades. A partir del reconocimiento y estudio de familias con formas monogénicas de diabetes y distintas dislipidemias asociadas al desarrollo de ateroesclerosis, se han identificado en los últimos años distintos genes y loci relacionados con estos padecimientos a través de estudios de mapeo ...

  14. A tuberculose no interior das famílias: uma análise sobre conhecimento, atitudes e estigma social relacionados à doença

    OpenAIRE

    Marcela Paschoal Popolin

    2013-01-01

    O estudo teve por objeto analisar o conhecimento, atitudes e estigma social relacionados à tuberculose em famílias de pacientes diagnosticados com essa doença, em Ribeirão Preto, SP. Trata-se de estudo epidemiológico analítico, de corte transversal, com amostragem do tipo probabilística, constituído por 110 familiares e coabitantes de pacientes de tuberculose diagnosticados entre 1 de janeiro de 2010 e 31 de julho de 2011. A cole...

  15. Análisis predictivo de los eventos adversos relacionados con los indicadores de eficiencia hospitalaria de una IPS de Bogotá

    OpenAIRE

    Salamanca, Lucia; Mora, Sandra

    2015-01-01

    En este estudio se realizó un análisis predictivo de la aparición de eventos adversos de los pacientes de una IPS de Bogotá, Mederi Hospital Universitario de Barrios Unidos (HUBU) durante el año 2013; relacionados con los indicadores de eficiencia hospitalaria (Porcentaje de ocupación hospitalaria, número de egresos hospitalarios, promedio de estancia hospitalaria, número de egresos de urgencias, promedio de estancia en urgencias). Los datos fueron exportados a una matriz de análisis de...

  16. Estudio del efecto de los ácidos grasos poliinsaturados, polifenoles e iminociclitoles sobre marcadores relacionados con el síndrome metabólico

    OpenAIRE

    Molinar Toribio, Eunice María

    2015-01-01

    La prevalencia del denominado Síndrome Metabólico (SM) está aumentando rápidamente en todo el mundo a tal punto que se está convirtiendo en un problema de salud global. Se conoce como SM a un conjunto de factores de riesgo para la salud, que incluyen la obesidad (obesidad central), resistencia a la insulina (RI), dislipidemia, hígado graso no alcohólico y la hipertensión. Estas alteraciones se han relacionado con un alto riesgo de desarrollar diabetes tipo 2 (DM2) y enfermedades cardiovascula...

  17. Estudio del efecto de los ácidos grasos poliinsaturados, polifenoles e iminociclitoles sobre marcadores relacionados con el síndrome metabólico

    OpenAIRE

    Molinar Toribio, Eunice María

    2015-01-01

    [spa] La prevalencia del denominado Síndrome Metabólico (SM) está aumentando rápidamente en todo el mundo a tal punto que se está convirtiendo en un problema de salud global. Se conoce como SM a un conjunto de factores de riesgo para la salud, que incluyen la obesidad (obesidad central), resistencia a la insulina (RI), dislipidemia, hígado graso no alcohólico y la hipertensión. Estas alteraciones se han relacionado con un alto riesgo de desarrollar diabetes tipo 2 (DM2) y enfermedades cardiov...

  18. Contrast agents for MRI

    International Nuclear Information System (INIS)

    Bonnemain, B.

    1994-01-01

    Contrast agents MRI (Magnetic Resonance Imaging) have been developed to improve the diagnostic information obtained by this technic. They mainly interact on T1 and T2 parameters and increase consequently normal to abnormal tissues contrast. The paramagnetic agents which mainly act on longitudinal relaxation rate (T1) are gadolinium complexes for which stability is the main parameter to avoid any release of free gadolinium. The superparamagnetic agents that decrease signal intensity by an effect on transversal relaxation rate (T2) are developed for liver, digestive and lymph node imaging. Many area of research are now opened for optimal use of present and future contrast agents in MRI. (author). 28 refs., 4 tabs

  19. Decontamination Data - Blister Agents

    Data.gov (United States)

    U.S. Environmental Protection Agency — Decontamination efficacy data for blister agents on various building materials using various decontamination solutions. This dataset is associated with the following...

  20. Change Agent Survival Guide

    Science.gov (United States)

    Dunbar, Folwell L.

    2011-01-01

    Consulting is a rough racket. Only a tarantula hair above IRS agents, meter maids and used car sales people, the profession is a prickly burr for slings and arrows. Throw in education, focus on dysfunctional schools and call oneself a "change agent," and this bad rap all but disappears. Unfortunately, though, consulting/coaching/mentoring in…

  1. Teaching Tourism Change Agents

    DEFF Research Database (Denmark)

    Stilling Blichfeldt, Bodil; Kvistgaard, Hans-Peter; Hird, John

    2017-01-01

    course that is part of a Tourism Master’s program, where a major challenge is not only to teach students about change and change agents, but to teach them how change feels and ho w to become change agents. The c hange management course contains an experiment inspired by experiential teaching literature...... change in tourism in the future....

  2. Travel Agent Course Outline.

    Science.gov (United States)

    British Columbia Dept. of Education, Victoria.

    Written for college entry-level travel agent training courses, this course outline can also be used for inservice training programs offered by travel agencies. The outline provides information on the work of a travel agent and gives clear statements on what learners must be able to do by the end of their training. Material is divided into eight…

  3. Radiographic scintiscanning agent

    International Nuclear Information System (INIS)

    Bevan, J.A.

    1979-01-01

    A new technetium-based scintiscanning agent has been prepared comprising a water soluble sup(99m)Tc-methanehydroxydiphosphonate in combination with a reducing agent selected from stannous, ferrous, chromous and titanous salts. As an additional stabilizer salts and esters of gentisic or ascorbic acids have been used. (E.G.)

  4. Radiographic scanning agent

    International Nuclear Information System (INIS)

    Tofe, A.J.

    1976-01-01

    A stable radiographic scanning agent on a sup(99m)Tc basis has been developed. The substance contains a pertechnetate reduction agent, tin(II)-chloride, chromium(II)-chloride, or iron(II)-sulphate, as well as an organospecific carrier and ascorbic acid or a pharmacologically admissible salt or ester of ascorbic acid. (VJ) [de

  5. Stable radiographic scanning agents

    International Nuclear Information System (INIS)

    1976-01-01

    Stable compositions which are useful in the preparation of Technetium-99m-based scintigraphic agents are discussed. They are comprised of ascorbic acid or a pharmaceutically acceptable salt or ester thereof in combination with a pertechnetate reducing agent or dissolved in oxidized pertechnetate-99m (sup(99m)TcO 4 - ) solution

  6. Aspectos legales relacionados con las úlceras por presión Legal aspects related to pressure ulcers

    Directory of Open Access Journals (Sweden)

    J. Javier Soldevilla Agreda

    2006-12-01

    hace años" en España. Finalmente la exposición pormenorizada y comentada de los pronunciamientos judiciales de los casos relacionados con estas lesiones de los últimos años, permiten concluir que, a pesar del creciente número de sentencias que hacen mención a las UPP, son simbólicas las que con rotundidad pronuncian como causa de éstas una deficiencia en los cuidados, negligencia o mala praxis y llama la atención las raquíticas condenas e indemnizaciones. Tal vez el mismo e histórico espíritu de devaluación de estas lesiones, presente en ámbitos profesionales y en la sociedad en general, se ha trasladado a la judicatura, especialmente de la mano de peritos y/o forenses, no alcanzando a cifrar la dimensión real del problema (pérdida de salud y calidad de vida y las fatales consecuencias de las UPP (incluida la muerte por esa causa y olvidando que son previsibles casi en la totalidad de las situaciones.Over the past few years, Spain has been experiencing a significant increase in questionable health care practices. During the long process which aims to dismiss pressure ulcer (PU as a banal, especially inevitable process due to being closely related to old age and terminal illness, it is becoming apparent that patients and their families are now reacting, complaining and suing for lack of prevention or inadequate treatment, something that has already been happening for years in other countries with similar cultural and economic characteristics. A revision on the impact and the way the pressure ulcer issue is being legally dealt with in our surrounding countries (United Kingdom, United States, Germany... from the point of view of penal law, civil law or through disciplinary procedures, has made a very noticeable difference in the way professionals, institutions and people behave with regards to this subject. With an entirely instructive purpose, the legal configuration of our country's health care practice is described, as well as the types of liability

  7. Hyperthermia and chemotherapy agent

    International Nuclear Information System (INIS)

    Roizin-Towle, L.; Hall, E.J.

    1981-01-01

    The use of chemotherapeutic agents for the treatment of cancer dates back to the late 19th century, but the modern era of chemotherapy drugs was ushered in during the 1940's with the development of the polyfunctional alkylating agent. Since then, numerous classes of drugs have evolved and the combined use of antineoplastic agents with other treatment modalities such as radiation or heat, remains a large relatively unexplored area. This approach, combining local hyperthermia with chemotherapy agents affords a measure of targeting and selective toxicity not previously available for drugs. In this paper, the effects of adriamycin, bleomycin and cis-platinum are examined. The adjuvant use of heat may also reverse the resistance of hypoxic cells noted for some chemotherapy agents

  8. CIRCULACION DEL NEUMOCOCO RELACIONADO A CAMBIOS EN LOS FACTORES CLIMÁTICOS EN LA PROVINCIA DE LA RIOJA

    Directory of Open Access Journals (Sweden)

    Patricia Cordoba, PhD

    2003-01-01

    Full Text Available Resumen: Streptococo pneumoniae (Neumococo, Neisseria meningitidis y Haemophilus influenzae producen meningitis bacterianas. Este trabajo describe las caracteristicas del aumento de casos de meningitis bacterianas en la Provincia de la Rioja, Argentina. Se realizó un estudio descriptivo retrospectivo de las meningitis desde 1997 hasta 2001. Se estudió la circulación de los agentes etiologicos; la distribución de las neumonías y bacteriemias producidas por neumococo; las variaciones de la humedad relativa y de las temperaturas promedios (aportadas por el Servicio Meteorológico Nacional. Los casos se estudiaron desde fichas epidemiológicas de la Dirección de epidemiología y de historias clínicas del Hospital "Dr. E. Vera Barros". Los liquidos cefalorraquideos y lavados pleurales o bronquiales se procesaron en el laboratorio de bacteriología. Los aislamientos se remitieron para su serotipificación al laboratorio de referencia nacional. Durante el año 2000, la tasa de incidencia de meningitis fue mayor y la tasa de meningitis por neumococo fue mayor en el periodo estudiado. En ese año, el neumococo aumenta la circulación presentandose aumento de meningitis, neumonias mientras que las infecciones neumococcicas invasivas fueron simirales a otros años. La circulación de los otros agentes etiológico se mantienen constante en el periodo estudiado. Los serotipos circulantes fueron sensibles penicilina. Durante el año 2000 aumenta en la humedad (2-6 puntos y disminuye la amplitud térmica en los meses simultáneamente a la presencia de los casos de infecciones por neumococo. Los resultados sugieren que la circulación del neumococo en una población estaría relacionada con la alta humedad relativa y la poca amplitud térmica.

  9. Agent Programming Languages and Logics in Agent-Based Simulation

    DEFF Research Database (Denmark)

    Larsen, John

    2018-01-01

    and social behavior, and work on verification. Agent-based simulation is an approach for simulation that also uses the notion of agents. Although agent programming languages and logics are much less used in agent-based simulation, there are successful examples with agents designed according to the BDI...

  10. Biological warfare agents

    Directory of Open Access Journals (Sweden)

    Duraipandian Thavaselvam

    2010-01-01

    Full Text Available The recent bioterrorist attacks using anthrax spores have emphasized the need to detect and decontaminate critical facilities in the shortest possible time. There has been a remarkable progress in the detection, protection and decontamination of biological warfare agents as many instrumentation platforms and detection methodologies are developed and commissioned. Even then the threat of biological warfare agents and their use in bioterrorist attacks still remain a leading cause of global concern. Furthermore in the past decade there have been threats due to the emerging new diseases and also the re-emergence of old diseases and development of antimicrobial resistance and spread to new geographical regions. The preparedness against these agents need complete knowledge about the disease, better research and training facilities, diagnostic facilities and improved public health system. This review on the biological warfare agents will provide information on the biological warfare agents, their mode of transmission and spread and also the detection systems available to detect them. In addition the current information on the availability of commercially available and developing technologies against biological warfare agents has also been discussed. The risk that arise due to the use of these agents in warfare or bioterrorism related scenario can be mitigated with the availability of improved detection technologies.

  11. Biological warfare agents

    Science.gov (United States)

    Thavaselvam, Duraipandian; Vijayaraghavan, Rajagopalan

    2010-01-01

    The recent bioterrorist attacks using anthrax spores have emphasized the need to detect and decontaminate critical facilities in the shortest possible time. There has been a remarkable progress in the detection, protection and decontamination of biological warfare agents as many instrumentation platforms and detection methodologies are developed and commissioned. Even then the threat of biological warfare agents and their use in bioterrorist attacks still remain a leading cause of global concern. Furthermore in the past decade there have been threats due to the emerging new diseases and also the re-emergence of old diseases and development of antimicrobial resistance and spread to new geographical regions. The preparedness against these agents need complete knowledge about the disease, better research and training facilities, diagnostic facilities and improved public health system. This review on the biological warfare agents will provide information on the biological warfare agents, their mode of transmission and spread and also the detection systems available to detect them. In addition the current information on the availability of commercially available and developing technologies against biological warfare agents has also been discussed. The risk that arise due to the use of these agents in warfare or bioterrorism related scenario can be mitigated with the availability of improved detection technologies. PMID:21829313

  12. Culturally Aware Agent Communication

    DEFF Research Database (Denmark)

    Rehm, Matthias; Nakano, Yukiko; Koda, Tomoko

    2012-01-01

    Agent based interaction in the form of Embodied Conversational Agents (ECAs) has matured over the last decade and agents have become more and more sophisticated in terms of their verbal and nonverbal behavior like facial expressions or gestures. Having such “natural” communication channels...... available for expressing not only task-relevant but also socially and psychologically relevant information makes it necessary to take influences into account that are not readily implemented like emotions or cultural heuristics. These influences have a huge impact on the success of an interaction...

  13. Agent-Based Optimization

    CERN Document Server

    Jędrzejowicz, Piotr; Kacprzyk, Janusz

    2013-01-01

    This volume presents a collection of original research works by leading specialists focusing on novel and promising approaches in which the multi-agent system paradigm is used to support, enhance or replace traditional approaches to solving difficult optimization problems. The editors have invited several well-known specialists to present their solutions, tools, and models falling under the common denominator of the agent-based optimization. The book consists of eight chapters covering examples of application of the multi-agent paradigm and respective customized tools to solve  difficult optimization problems arising in different areas such as machine learning, scheduling, transportation and, more generally, distributed and cooperative problem solving.

  14. Diagnóstico de factores de riesgo relacionados con la accidentabilidad de mano en trabajadores de una empresa refresquera Diagnostic of risk factor related to the accidentes of hand in workers of solf-drinks industry

    Directory of Open Access Journals (Sweden)

    Gabriela Betzabé Pérez-Manriquez

    2012-03-01

    Full Text Available Con el propósito de que se profundice en el reconocimiento de factores de riesgos derivados de este tipo de empresas y de estas actividades específicamente, para que se prevengan y minimicen los efectos a la salud de forma integral al interior de las empresas, el presente trabajo pretende determinar los factores de riesgo potencialmente relacionados con los accidentes de mano. Objetivos: Determinar los factores de riesgo relacionados con los accidentes en mano para identificar que permitan disminuir la posibilidad de accidentes de mano mediante la modificación, eliminación y/o control de los factores presentes. Material y métodos: Estudio observacional, descriptivo y longitudinal llevado a cabo en la población trabajadora del área de ventas, compuesta por 206 ayudantes y 81 agentes, de una Cooperativa productora Bebidas frutales de la Ciudad de México, en el periodo de 2007-2009. Se empleo el Método de Freeman Modificado para el Diagnóstico Situacional. Resultados: Los factores de riesgo relacionados con accidentes de mano identificados y jerarquizados son: en primer lugar los psicosociales derivados de Organización Laboral (ritmo acelerado de la actividad y la Condición Insegura (traslado del personal en la defensa trasera del camión; en segundo lugar se encontraron los Ergonómicos (movimientos repetitivos, manejo manual de cargas, junto con el Acto Inseguro (omisión del uso del equipo de protección personal, y la Condición Insegura (tipo de unidad, puerta y material transportado; y falta de capacitación; finalmente en tercer lugar los psicosociales de Organización Laboral (jornada indefinida mínima de 8 horas máxima de 14 y Condición Insegura (objetos punzocortantes en cajas. Conclusiones: Los accidentes de mano constituyen un problema de salud pública importante a nivel nacional e internacional. Es de suma importancia identificar los factores de riesgo que se relacionan con su génesis como son: los factores

  15. Mobile Agent Data Integrity Using Multi-Agent Architecture

    National Research Council Canada - National Science Library

    McDonald, Jeffrey

    2004-01-01

    .... Security issues for mobile agents continue to produce research interest, particularly in developing mechanisms that guarantee protection of agent data and agent computations in the presence of malicious hosts...

  16. Delta agent (Hepatitis D)

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/000216.htm Hepatitis D (Delta agent) To use the sharing features on this page, please enable JavaScript. Hepatitis D is a viral infection caused by the ...

  17. Comportamientos relacionados con la salud en estudiantes de Santa Marta: comparación entre colegios públicos y privados

    Directory of Open Access Journals (Sweden)

    Lauris Munive Gutierrez

    2013-10-01

    Full Text Available Resumen Hoy en día se sabe que los perfiles de morbilidad y mortalidad de un país se encuentran ligados a patrones de comportamientos que pueden ser modificados y que, por tanto, cualquier persona puede adoptar conductas saludables para contribuir a su propio bienestar. Por ello, los comportamientos relacionados con la salud han sido objeto de estudios en los últimos años. Esto aunado, a sus consecuencias sociales, económicas y de la salud, como son los embarazos no planeados, infecciones de transmisión sexual (ITS, en especial el VIH-SIDA, lo cual ha hecho que se reconozca como un problema de salud pública. El objetivo de la presente investigación fue el de comparar los comportamientos relacionados con la salud de adolescentes escolarizados de colegios públicos y privados de la ciudad de Santa Marta. Se utilizó un diseño de tipo transversal, con 2039 mujeres y 1536 varones, con una edad promedio de 17.5 años. Se concluye que existen diferencias en los comportamientos relacionados con la salud en estudiantes de colegios públicos y privados de la ciudad, siendo los estudiantes de colegios públicos, independiente del género, quienes presentan mayores comportamientos de riesgo para la salud. (DUAZARY 2011, 58 - 65AbstractToday it is known that morbidity and mortality profile of a country are linked to patterns of behavior that can be modified and that therefore, anyone can adopt healthy behaviors to contribute to their own welfare. Thus, behaviors related to health have been studied in recent years. This coupled, their social, economic and health, such as unplanned pregnancies, sexually transmitted infections (STIs including HIV / AIDS, which has led to recognized as a public health problem. The objective of this research was to compare health-related behaviors of adolescent students in schools public and private in the city of Santa Marta. We used a cross-sectional design with 2039 women and 1536 men with an average age of 17

  18. Análise dos fatores de risco relacionados às amputações maiores e menores de membros inferiores em hospital terciário

    Directory of Open Access Journals (Sweden)

    Seleno Glauber de Jesus-Silva

    Full Text Available Resumo Contexto As amputações dos membros inferiores, sejam definidas como maiores ou menores, são um grave problema de saúde, com altos índices de morbimortalidade e de relevante impacto social. Diferentes características clínicas dos pacientes parecem estar relacionadas aos diferentes tipos de amputação realizados. Objetivos Analisar os fatores de risco presentes em pacientes submetidos a amputações de membros inferiores em hospital terciário. Métodos Estudo retrospectivo, transversal, envolvendo 109 pacientes submetidos a amputação de membro inferior em um período de 31 meses, através da análise de gênero e idade, 15 dados clínicos e cinco parâmetros laboratoriais presentes no momento da admissão. Os dados foram submetidos a estatística descritiva e comparativa através do teste t de Student não pareado (para variáveis numéricas, e dos testes de Mann-Whitney e exato de Fisher (para variáveis categóricas. Resultados Das 109 amputações realizadas, 59 foram maiores e 50 menores. A maioria dos pacientes era do gênero masculino (65%, e a média de idade foi de 65 anos (mín. 39, máx. 93. Dentre os fatores de risco observados, idade avançada, acidente vascular encefálico, isquemia, sepse e níveis baixos de hemoglobina e hematócrito estavam estatisticamente mais relacionados às amputações maiores (p < 0,05. Diabetes melito, neuropatia e pulsos distais palpáveis foram fatores mais associados às amputações menores. Conclusões Os níveis das amputações de membros inferiores estão relacionados a diferentes fatores de risco. Os quadros isquêmicos mais graves e de maior morbidade estiveram associados a amputações maiores, enquanto a neuropatia e perfusão preservada, mais relacionados às amputações menores.

  19. Análise dos fatores de risco relacionados às amputações maiores e menores de membros inferiores em hospital terciário

    Science.gov (United States)

    de Jesus-Silva, Seleno Glauber; de Oliveira, João Pedro; Brianezi, Matheus Henrique Colepicolo; Silva, Melissa Andreia de Moraes; Krupa, Arturo Eduardo; Cardoso, Rodolfo Souza

    2017-01-01

    Resumo Contexto As amputações dos membros inferiores, sejam definidas como maiores ou menores, são um grave problema de saúde, com altos índices de morbimortalidade e de relevante impacto social. Diferentes características clínicas dos pacientes parecem estar relacionadas aos diferentes tipos de amputação realizados. Objetivos Analisar os fatores de risco presentes em pacientes submetidos a amputações de membros inferiores em hospital terciário. Métodos Estudo retrospectivo, transversal, envolvendo 109 pacientes submetidos a amputação de membro inferior em um período de 31 meses, através da análise de gênero e idade, 15 dados clínicos e cinco parâmetros laboratoriais presentes no momento da admissão. Os dados foram submetidos a estatística descritiva e comparativa através do teste t de Student não pareado (para variáveis numéricas), e dos testes de Mann-Whitney e exato de Fisher (para variáveis categóricas). Resultados Das 109 amputações realizadas, 59 foram maiores e 50 menores. A maioria dos pacientes era do gênero masculino (65%), e a média de idade foi de 65 anos (mín. 39, máx. 93). Dentre os fatores de risco observados, idade avançada, acidente vascular encefálico, isquemia, sepse e níveis baixos de hemoglobina e hematócrito estavam estatisticamente mais relacionados às amputações maiores (p < 0,05). Diabetes melito, neuropatia e pulsos distais palpáveis foram fatores mais associados às amputações menores. Conclusões Os níveis das amputações de membros inferiores estão relacionados a diferentes fatores de risco. Os quadros isquêmicos mais graves e de maior morbidade estiveram associados a amputações maiores, enquanto a neuropatia e perfusão preservada, mais relacionados às amputações menores. PMID:29930618

  20. Agents Within our Midst

    Science.gov (United States)

    2012-03-14

    agents; and the development of bio -monitoring protocols for civilian and service personnel during a chemical attack. These efforts have resulted in greater...produced by staphylococcal bacteria that is and is classified as a CDC select agent which has the potential to be used as a biological weapon .1...NMR chemical shift perturbation titrations with Fab (fragment, antigen binding regions) domains of 20B1, 14G8, and 6D3 using deuterated (2H) SEB

  1. Adrenal imaging agents

    International Nuclear Information System (INIS)

    Davis, M.A.; Hanson, R.N.; Holman, B.L.

    1980-01-01

    The goals of this proposal are the development of selenium-containing analogs of the aromatic amino acids as imaging agents for the pancreas and of the adrenal cortex enzyme inhibitors as imaging agents for adrenal pathology. The objects for this year include (a) the synthesis of methylseleno derivatives of phenylalanine and tryptophan, and (b) the preparation and evaluation of radiolabeled iodobenzoyl derivatives of the selenazole and thiazole analogs of metyrapone and SU-9055

  2. FACTORES SOCIO-AFECTIVOS RELACIONADOS CON LAS DIFICULTADES ESCOLARES EN NIÑAS Y NIÑOS “ESTRELLA” DEL PROGRAMA PSICOMOTRICIDAD E INTERVENCIÓN

    Directory of Open Access Journals (Sweden)

    Pilar Vargas Ramírez

    2012-07-01

    Full Text Available El presente estudio muestra los principales factores socio-afectivos relacionados con las dificultades escolares de un grupo de tres niñas y tres niños identificados como “estrella” por el Programa Psicomotricidad e Intervención. El mismo se desarrolló a través de una metodología mixta, en la que se aplicaron el Test de Figura Humana, el Dibujo Kinético de la Familia y una entrevista a la madre de cada estudiante. Los resultados revelaron la existencia de factores conflictivos familiares que afectan el estado emocional de las y los niños, generándoles sentimientos negativos consigo mismos que terminan afectado sus interacciones sociales y también su desempeño escolar.

  3. Consumo alimentar e antropometria relacionados à síndrome de fragilidade em idosos residentes em comunidade de baixa renda de um grande centro urbano

    OpenAIRE

    Amanda de Carvalho Mello; Marilia Sá Carvalho; Luciana Correia Alves; Viviane Pereira Gomes; Elyne Montenegro Engstrom

    2017-01-01

    Resumo: O objetivo deste estudo foi descrever dados antropométricos e de alimentação relacionados à síndrome de fragilidade em idosos. O desenho foi transversal, com indivíduos ≥ 60 anos de inquérito domiciliar realizado em Manguinhos, Município do Rio de Janeiro, Brasil (n = 137). Foram obtidos o diagnóstico de síndrome de fragilidade segundo Fried et al., medidas antropométricas e aplicado questionário de frequência de consumo alimentar, comparando-se às recomendações do Ministério da Saúde...

  4. Monitoring volatile anaesthetic agents

    International Nuclear Information System (INIS)

    Russell, W.J.

    2000-01-01

    Full text: The methods that have been used for monitoring volatile anaesthetic agents depend on some physical property such as Density, Refractometry, Mass, Solubility, Raman scattering, or Infra-red absorption. Today, refractometry and infra-red techniques are the most common. Refractometry is used for the calibration of vaporizers. All anaesthetic agents increase the refractive index of the carrier gas. Provided the mixture is known then the refractive change measures the concentration of the volatile anaesthetic agent. Raman Scattering is when energy hits a molecule a very small fraction of the energy is absorbed and re-emitted at one or more lower frequencies. The shift in frequency is a function of the chemical bonds and is a fingerprint of the substance irradiated. Electromagnetic (Infra-red) has been the commonest method of detection of volatile agents. Most systems use a subtractive system, i.e. the agent in the sampling cell absorbed some of the infrared energy and the photo-detector therefore received less energy. A different approach is where the absorbed energy is converted into a pressure change and detected as sound (Acoustic monitor). This gives a more stable zero reference. More recently, the detector systems have used multiple narrow-band wavelengths in the infrared bands and by shape matching or matrix computing specific agent identification is achieved and the concentration calculated. In the early Datex AS3 monitors, a spectral sweep across the 3 micron infrared band was used to create spectral fingerprints. The recently released AS3 monitors use a different system with five very narrow band filters in the 8-10 micron region. The transmission through each of these filters is a value in a matrix which is solved by a micro computer to identify the agent and its concentration. These monitors can assist in improving the safety and efficiency of our anaesthetics but do not ensure that the patient is completely anaesthetized. Copyright (2000

  5. Monitoring volatile anaesthetic agents

    Energy Technology Data Exchange (ETDEWEB)

    Russell, W J [Royal Adelaide Hospital, SA (Australia). Department of Anaesthesia and Intensive Care

    2000-12-01

    Full text: The methods that have been used for monitoring volatile anaesthetic agents depend on some physical property such as Density, Refractometry, Mass, Solubility, Raman scattering, or Infra-red absorption. Today, refractometry and infra-red techniques are the most common. Refractometry is used for the calibration of vaporizers. All anaesthetic agents increase the refractive index of the carrier gas. Provided the mixture is known then the refractive change measures the concentration of the volatile anaesthetic agent. Raman Scattering is when energy hits a molecule a very small fraction of the energy is absorbed and re-emitted at one or more lower frequencies. The shift in frequency is a function of the chemical bonds and is a fingerprint of the substance irradiated. Electromagnetic (Infra-red) has been the commonest method of detection of volatile agents. Most systems use a subtractive system, i.e. the agent in the sampling cell absorbed some of the infrared energy and the photo-detector therefore received less energy. A different approach is where the absorbed energy is converted into a pressure change and detected as sound (Acoustic monitor). This gives a more stable zero reference. More recently, the detector systems have used multiple narrow-band wavelengths in the infrared bands and by shape matching or matrix computing specific agent identification is achieved and the concentration calculated. In the early Datex AS3 monitors, a spectral sweep across the 3 micron infrared band was used to create spectral fingerprints. The recently released AS3 monitors use a different system with five very narrow band filters in the 8-10 micron region. The transmission through each of these filters is a value in a matrix which is solved by a micro computer to identify the agent and its concentration. These monitors can assist in improving the safety and efficiency of our anaesthetics but do not ensure that the patient is completely anaesthetized. Copyright (2000

  6. Documentos relacionados con el Visir Amen-Hotep, Huy, dueño de la tumba nº -28- en Asasif : (Luxor Occidental

    Directory of Open Access Journals (Sweden)

    Francisco J. Martín Valentín

    2011-01-01

    Full Text Available Los documentos y monumentos relacionados con el Visir Amen-Hotep, Huy, que desempeñó su función como Visir del Sur en los años finales del reinado de Amen-Hotep III (dinastía XVIII, hacia 1358-1353 a. C. son muy escasos, en comparación con los referidos a otros personajes del mismo periodo. El motivo principal de esta oscuridad es, sin duda, el hecho de haber sido perseguida su memoria, y destruidos sus monumentos. Este artículo tiene por objeto publicar la compilación de los documentos arqueológicos y textuales conocidos, relacionados con el Visir Amen-Hotep, Huy, hasta el momento en que, en el año 2009, se inició por el Instituto de Estudios del Antiguo Egipto de Madrid la exploración y excavación sistemática de la tumba nº -28- , construida por orden del Visir Amen-Hotep, Huy, en la necrópolis de Asasif (Luxor Occidental.The documents and monuments connected with the vizier Amen-Hotep, Huy, who was Vizier of the South, at the end of the reign of Amen-Hotep III (XVIIIth. dynasty c.1358 - 1353 BC, are very scarce, compared with referrals to other courtiers in the same period. The main reason for this darkness is, without doubt, the fact of having been persecuted his memory, and his monuments, destroyed . This article aims to publish the compilation of known archaeolgical and textual documents, in relation with the Vizier Amen-Hotep, Huy, before 2009, when the Instituto de Estudios del Antiguo Egipto of Madrid started the systematic exploration and excavation in the tomb No. 28-, built by order of this high royal functionary, in the necropolis of Asasif (Luxor West Bank.

  7. Agent independent task planning

    Science.gov (United States)

    Davis, William S.

    1990-01-01

    Agent-Independent Planning is a technique that allows the construction of activity plans without regard to the agent that will perform them. Once generated, a plan is then validated and translated into instructions for a particular agent, whether a robot, crewmember, or software-based control system. Because Space Station Freedom (SSF) is planned for orbital operations for approximately thirty years, it will almost certainly experience numerous enhancements and upgrades, including upgrades in robotic manipulators. Agent-Independent Planning provides the capability to construct plans for SSF operations, independent of specific robotic systems, by combining techniques of object oriented modeling, nonlinear planning and temporal logic. Since a plan is validated using the physical and functional models of a particular agent, new robotic systems can be developed and integrated with existing operations in a robust manner. This technique also provides the capability to generate plans for crewmembers with varying skill levels, and later apply these same plans to more sophisticated robotic manipulators made available by evolutions in technology.

  8. Elaboración y aplicación de un manual para estudiantes de la UPS Sede Cuenca, con aspectos relacionados a un correcto desenvolvimiento dentro del proceso de una entrevista laboral, jul/2011-dic/2011

    OpenAIRE

    Delgado Quispe, Ximena Alexandra

    2011-01-01

    El producto intitulado "Elaboración y aplicación de un manual para estudiantes de la UPS - Sede Cuenca, con aspectos relacionados a un correcto desenvolvimiento dentro del proceso de una Entrevista Laboral", contiene temas exclusivamente relacionados con información muy útil y actualizada, para los estudiantes y futuros profesionales, acerca de todos los requerimientos que dentro del ámbito laboral se exige, dada la tecnología y el entorno altamente competitivo en el que nos desenvolvemos, se...

  9. [Supramolecular Agents for Theranostics].

    Science.gov (United States)

    Deyev, S M; Lebedenko, E N

    2015-01-01

    This mini-review summarizes recent data obtained in the process of creation of a versatile module platform suitable for construction of supramolecular theranostic agents. As an example, we consider multifunctional hybrid agents for imaging and elimination of cancer cells. The use of an adapter protein system barnase:barstar for producing targeted multifunctional hybrid structures on the basis of highly specific peptides and mini-antibodies as addressing modules and recombinant proteins and/or nanoparticles of different nature (quantum dots, nanogold, magnetic nanoparticles, nanodiamonds, upconverting nanophosphores, polymer nanoparticles) as agents visualizing and damaging cancer cells is described. New perspectives for creation of selective and highly effective compounds for theranostics and personified medicine are contemplated.

  10. Teaching tourism change agents

    DEFF Research Database (Denmark)

    Blichfeldt, Bodil Stilling; Kvistgaard, Hans-Peter; Hird, John

    2017-01-01

    This article discuss es know ledge, competencies and skills Master’s students should obtain during their academic studies and particularly, the differences between teaching about a topic and teaching to do. This is ex emplified by experiential learning theory and the case of a change management...... course that is part of a Tourism Master’s program, where a major challenge is not only to teach students about change and change agents, but to teach them how change feels and ho w to become change agents. The c hange management course contains an experiment inspired by experiential teaching literature...... and methods. The experiment seeks to make students not only hear/learn about change agency and management, but to make them feel cha nge, hereby enabling them to develop the skills and competencies necessary for them to take on the role as change agent s and thus enable them to play key role s in implementing...

  11. Câncer de mama e sofrimento psicológico: aspectos relacionados ao feminino El cáncer de mama y el sufrimiento psicológico: aspectos relacionados con el femenino Breast cancer and psychological suffering: female-related aspects

    OpenAIRE

    Lucia Cecilia da Silva

    2008-01-01

    No Brasil e no mundo a incidência do câncer de mama vem aumentando e aparecendo cada vez mais cedo na vida da mulher. O tratamento envolve mastectomia, quimioterapia e radioterapia, que, pelos seus efeitos físicos, podem comprometer em variados graus a auto-estima, a imagem corporal e a identidade feminina daquelas que recebem o diagnóstico da doença. Além disso, em nossa sociedade o câncer adquiriu significados relacionados a culpa, punição, deterioração, dor e morte, agravando o sofrimento ...

  12. Agents unleashed a public domain look at agent technology

    CERN Document Server

    Wayner, Peter

    1995-01-01

    Agents Unleashed: A Public Domain Look at Agent Technology covers details of building a secure agent realm. The book discusses the technology for creating seamlessly integrated networks that allow programs to move from machine to machine without leaving a trail of havoc; as well as the technical details of how an agent will move through the network, prove its identity, and execute its code without endangering the host. The text also describes the organization of the host's work processing an agent; error messages, bad agent expulsion, and errors in XLISP-agents; and the simulators of errors, f

  13. Agent Persuasion Mechanism of Acquaintance

    Science.gov (United States)

    Jinghua, Wu; Wenguang, Lu; Hailiang, Meng

    Agent persuasion can improve negotiation efficiency in dynamic environment based on its initiative and autonomy, and etc., which is being affected much more by acquaintance. Classification of acquaintance on agent persuasion is illustrated, and the agent persuasion model of acquaintance is also illustrated. Then the concept of agent persuasion degree of acquaintance is given. Finally, relative interactive mechanism is elaborated.

  14. SECOND BUYING AGENT

    CERN Multimedia

    SPL - SERVICES ACHATS

    2000-01-01

    Last year the buying agent LOGITRADE started operations on the CERN site, processing purchasing requests for well-defined families of products up to a certain value. It was planned from the outset that a second buying agent would be brought in to handle the remaining product families. So, according to that plan, the company CHARLES KENDALL will be commencing operations at CERN on 8 May 2000 in Building 73, 1st floor, offices 31 and 35 (phone and fax numbers to be announced).Each buying agent will have its own specific list of product families and will handle purchasing requests up to 10'000 CHF.Whenever possible they will provide the requested supplies at a price (including the cost of their own services) which must be equivalent to or lower than the price mentioned on the purchasing request, changing the supplier if necessary. If a lower price cannot be obtained, agents will provide the necessary administrative support free of charge.To ensure that all orders are processed in the best possible conditions, us...

  15. Socially Intelligent Tutor Agents

    NARCIS (Netherlands)

    Heylen, Dirk K.J.; Nijholt, Antinus; op den Akker, Hendrikus J.A.; Vissers, M.; Aylett, R.; Ballin, D.; Rist, T.

    2003-01-01

    Emotions and personality have received quite a lot of attention the last few years in research on embodied conversational agents. Attention is also increasingly being paid to matters of social psychology and interpersonal aspects, for work of our group). Given the nature of an embodied

  16. Alternative inerting agents

    CSIR Research Space (South Africa)

    Du

    1997-08-01

    Full Text Available Final Project Report ALTERNATIVE INERTING AGENTS Author/s: J J L DU PLESSIS Research Agency: OSIR MINING TECHNOLOGY Project No: Date: 3 2 7 2 COL 443 APRIL 1999 N’ ) ( G~6~ I Title: 9 / The results show...

  17. Multimodal training between agents

    DEFF Research Database (Denmark)

    Rehm, Matthias

    2003-01-01

    In the system Locator1, agents are treated as individual and autonomous subjects that are able to adapt to heterogenous user groups. Applying multimodal information from their surroundings (visual and linguistic), they acquire the necessary concepts for a successful interaction. This approach has...

  18. Stabilized radiographic scanning agent

    International Nuclear Information System (INIS)

    Fawzi, M.B.

    1979-01-01

    A stable composition useful in preparation of technetium-99m-based radiographic scanning agents has been developed. The composition contains a stabilizing amount of gentisate stabilizer selected from gentisic acid and its soluble pharmaceutically-acceptable salts and esthers. (E.G.)

  19. A waterproofing agent

    Energy Technology Data Exchange (ETDEWEB)

    Shchipanov, A.I.; Bass, U.M.; Belousov, E.D.; Chernova, S.P.; Gioev, K.A.; Perlin, L.M.; Shapiro, B.O.; Silantev, U.R.

    1979-12-25

    A waterproofing agent is proposed with improved physiomechanical properties. The agent contains (by parts): bitumens: 100; emulsifier: .6-5; polyvinylpyrrolidone: .4-8; synthetic latex: 5.24; a corrosion inhibitor: .2-10; SPL methyl methacrylate with chloroprene: 2.24; hydrochlorinated amine of adduct diethylene triamine with diglycidyl diamine: 2-10, water: 118-220. The agent is prepared using either periodic or continuous action in emulsifying dispersion machines. The bitumen is dispersed in the machine in an aqueous emulsifying solution in which polyvinylpyrrolidone and the corrosion inihibitor are first introduced. Then a synthetic latex solution is introduced into the bitumen emulsion while being mixed in rotor-type turbulent mixers; a solution and a hydrochlorinated amine of adduct diethylene triamine with diglycidyl diamine solution until a homogeneous mixture is obtained. Example: a waterproofing agent is obtained in parts: bitumen 100, emulsifyer (oxidized petrolatum): .6; polyvinylpyrrolidone: .4; synthetic latex (nitrile): 5; corrosion inhibitor (guanidine chromate): .2, SPL:2; and water 118. The properties of the proposed composition are better than the properties of the composition currently used.

  20. Product and Agent

    DEFF Research Database (Denmark)

    Montecino, Alex; Valero, Paola

    2015-01-01

    In this paper we will explore how the “mathematics teacher” becomes a subject and, at the same time, is subjected as part of diverse dispositive of power. We argue that the mathematics teacher becomes both a product and a social agent, which has been set, within current societies, from the ideas...

  1. E-Learning Agents

    Science.gov (United States)

    Gregg, Dawn G.

    2007-01-01

    Purpose: The purpose of this paper is to illustrate the advantages of using intelligent agents to facilitate the location and customization of appropriate e-learning resources and to foster collaboration in e-learning environments. Design/methodology/approach: This paper proposes an e-learning environment that can be used to provide customized…

  2. Diagnósticos de enfermagem relacionados à amamentação em unidade de alojamento conjunto Diagnósticos de enfermería relacionados a la lactancia materna en unidad de alojamiento conjunto Nursing diagnoses related to breastfeeding in a rooming-in unit

    Directory of Open Access Journals (Sweden)

    Evilene Pinto da Silva

    2013-04-01

    Full Text Available O estudo objetivou identificar, em uma unidade de Alojamento Conjunto, diagnósticos de enfermagem relacionados ao fenômeno da Amamentação de acordo com a taxonomia II da NANDA-I. Realizou-se um estudo descritivo-exploratório, envolvendo 83 mães e seus bebês, no período de fevereiro a abril de 2011. Os dados foram coletados por meio de um instrumento fundamentado na Teoria das Necessidades Humanas Básicas e, após tratamento estatístico, apresentados em tabelas. Nos resultados, o diagnóstico mais frequente foi Amamentação eficaz, com 65 (78,3%. Estima-se que os diagnósticos de enfermagem relacionados à Amamentação contribuirão para que os cuidados de enfermagem possam ser mais direcionados, de modo a promover uma assistência mais qualificada, humanizada e eficaz.El objetivo del estudio fue identificar, en una unidad de Alojamiento Conjunto, los diagnósticos de enfermería relacionados con la Lactancia materna, así como sus factores relacionados y características definitorias. Realizó-se un estudio descriptivo, exploratorio, involucrando 83 madres y sus bebés, de febrero a abril de 2011. Los datos fueran recogidos por medio de un instrumento basado en la Teoría de las Necesidades Humanas Básicas, presentados en tablas estadísticas. En los resultados, el diagnóstico más frecuente fue la Lactancia materna eficaz, con 65 (78,3% casos. Se estima que los diagnósticos de enfermería relacionados con la Lactancia materna contribuyen para que la atención de enfermería pueda ser más específica con el fin de promover una asistencia más calificada, humana y efectiva.The study aimed to identify, in a Rooming-in unit, diagnoses related to the phenomenon of breastfeeding according to the NANDA-I Taxonomy II. It was conducted a descriptive exploratory study involving 83 mothers and their babies in the period of February to April 2011. Data were collected by means of an instrument based on the Theory of Basic Human Needs and

  3. Topical antifungal agents: an update.

    Science.gov (United States)

    Diehl, K B

    1996-10-01

    So many topical antifungal agents have been introduced that it has become very difficult to select the proper agent for a given infection. Nonspecific agents have been available for many years, and they are still effective in many situations. These agents include Whitfield's ointment, Castellani paint, gentian violet, potassium permanganate, undecylenic acid and selenium sulfide. Specific antifungal agents include, among others, the polyenes (nystatin, amphotericin B), the imidazoles (metronidazole, clotrimazole) and the allylamines (terbinafine, naftifine). Although the choice of an antifungal agent should be based on an accurate diagnosis, many clinicians believe that topical miconazole is a relatively effective agent for the treatment of most mycotic infections. Terbinafine and other newer drugs have primary fungicidal effects. Compared with older antifungal agents, these newer drugs can be used in lower concentrations and shorter therapeutic courses. Studies are needed to evaluate the clinical efficacies and cost advantages of both newer and traditional agents.

  4. Halon firefighting agents

    International Nuclear Information System (INIS)

    Pope, P.R.; Dalzell, G.A.

    1991-01-01

    This paper examines the current state of the International agreements on the use of halons and the subsequent National and industry approaches to the subject. It examines the definition of Essential Use and gives particular examples to clarify its interpretation. Alternative methods of loss control are reviewed. It does not address alternative active firefighting agents but examines the need for protection in particular areas. It addresses reduction of the hazards and consequences so that the need for protection can be minimized. Practical measures to minimize the installed quantities of halon are described. This covers specifications for new, essential, systems and the short term reduction of inventories in existing systems. The causes of leakage and accidental releases are studied and preventive measures are proposed. The paper concludes with an overview of the current research into replacement agents and the future outlook

  5. Blasting agent package

    Energy Technology Data Exchange (ETDEWEB)

    Fox, R.

    1971-03-17

    A protected preassembled package for blasting agents susceptible to desensitization by water consists of, in combination: (1) an inner rigid and self-supporting tube, the upper end of which is suited to be connected, or attached, to the discharge end of a loading hose for a blasting agent and the lower end of which is open; and (2) a flexible tubular liner made of water-resistant film, having a diameter greater than that of the inner tube and a length at least equal to the desired depth of its insertion into the borehole, the liner being sleeved over the length of the inner tube, the upper end of the liner being attached to the inner tube and the lower end of the liner being closed so as to prevent substantial discharge of the explosive mixture therefrom when the latter is pumped into it. (24 claims)

  6. Distúrbios relacionados ao álcool em um setor de urgências psiquiátricas. Ribeirão Preto, Brasil (1988-1990

    Directory of Open Access Journals (Sweden)

    Oliveira Eliene Reis de

    1996-01-01

    Full Text Available Este estudo apresenta o resultado de uma investigação conduzida no setor de urgências psiquiátricas do Hospital das Clínicas de Ribeirão Preto, Universidade de São Paulo (1988-1990, objetivando caracterizar distúrbios pasiquiátricos relacionados ao consumo de álcool. A amostra incluiu um total de 1.082 pacientes diagnosticados durante o período da investigação. Ao todo, 576 casos foram diagnosticados com "síndrome de dependência alcoólica", 379 com "psicose alcoólica" e 127 pacientes com "álcool sem dependência". A maioria dos atendimentos recaiu sobre pacientes do sexo masculino e o grupo de idade mais afetado foi, para ambos os sexos, o de 25-44 anos. O estudo chama atenção para a importância do abuso de álcool como um problema em saúde pública.

  7. AVALIAÇÃO DO JOGO DIDÁTICO “DESAFIO DA REPRODUÇÃO” COMO FERRAMENTA PARA ABORDAGEM DE TEMAS RELACIONADOS À VIDA SEXUAL

    Directory of Open Access Journals (Sweden)

    Rosa Cristina COSTA

    2016-12-01

    Full Text Available O presente trabalho teve por objetivo avaliar, por meio de questionário de opinião discente, o jogo didático “Desafio da Reprodução”, desenvolvido como ferramenta complementar na abordagem de conteúdos relacionados à anatomia dos aparelhos reprodutores masculino e feminino, gravidez, uso de métodos contraceptivos e doenças sexualmente transmissíveis, no Ensino Fundamental Regular. Os dados obtidos indicam uma boa avaliação do jogo didático, de forma que podemos considera-lo adequado como ferramenta de apoio no processo de ensino-aprendizagem dos temas abordados, pois cumpriu seus objetivos de favorecer a consolidação do conhecimento científico e respeitar a diversidade de conhecimento tácito de cada aluno, proporcionando a construção e fixação do conhecimento de forma gradual, dinâmica e lúdica.

  8. Características dos primeiros casos de microcefalia possivelmente relacionados ao vírus Zika notificados na Região Metropolitana de Recife, Pernambuco

    Directory of Open Access Journals (Sweden)

    Alexander Vargas

    2016-09-01

    Full Text Available Resumo OBJETIVO: descrever os primeiros casos de microcefalia possivelmente relacionados ao vírus Zika em nascidos vivos notificados na Região Metropolitana do Recife, Pernambuco, Brasil. MÉTODOS: estudo descritivo de tipo série de casos (notificados de 1º de agosto a 31 de outubro de 2015, com dados obtidos dos registros médicos e de questionário aplicado às mães. RESULTADOS: foram confirmados 40 casos com microcefalia, distribuídos em oito municípios da Região Metropolitana do Recife, com maior concentração no Recife (n=12; a mediana do perímetro cefálico foi de 29 cm, do perímetro torácico, 31 cm, e do peso, 2.628 gramas; 21/25 casos apresentaram calcificação cerebral, ventriculomegalia ou lisencefalia; entre as 40 mães, 27 referiram exantema na gestação, 20 no primeiro trimestre e sete no segundo, além de prurido, cefaleia, mialgia e ausência de febre. CONCLUSÃO: a maioria dos casos apresentou características de infecção congênita; a maioria das mães apresentou quadro sugestivo de infecção pelo vírus Zika na gestação.

  9. ASPECTOS DE BIOSSEGURANÇA RELACIONADOS AO USO DO JALECO PELOS PROFISSIONAIS DE SAÚDE: UMA REVISÃO DA LITERATURA

    Directory of Open Access Journals (Sweden)

    Carmem Milena Rodrigues Siqueira Carvalho

    2009-01-01

    Full Text Available El objetivo del estudio fue analizar la literatura publicada sobre los aspectos de bioseguridad relacionados al uso del jaleco por profesionales del área de la salud. Se trata de una revisión narrativa de la literatura publicada en el período de 1991 a 2008. Se utilizaron las bases de datos MEDLINE, LILACS y SciELO, siendo seleccionados 22 artículos que fueron agrupados para su análisis considerando los enfoques cuyo énfasis es dado en: infecciones cruzadas causadas por los jalecos; jalecos contaminados; flora bacteriana presente en los uniformes de los profesionales de salud. El jaleco fue considerado como fuente de contaminación y como equipo de protección individual en la prevención de las infecciones. Por lo tanto, son necesarias campañas educativas en el sentido de orientar los profesionales de salud sobre el uso del jaleco.

  10. Constructing Secure Mobile Agent Systems Using the Agent Operating System

    NARCIS (Netherlands)

    van t Noordende, G.J.; Overeinder, B.J.; Timmer, R.J.; Brazier, F.M.; Tanenbaum, A.S.

    2009-01-01

    Designing a secure and reliable mobile agent system is a difficult task. The agent operating system (AOS) is a building block that simplifies this task. AOS provides common primitives required by most mobile agent middleware systems, such as primitives for secure communication, secure and

  11. Logics for Intelligent Agents and Multi-Agent Systems

    NARCIS (Netherlands)

    Meyer, John-Jules Charles

    2014-01-01

    This chapter presents the history of the application of logic in a quite popular paradigm in contemporary computer science and artificial intelligence, viz. the area of intelligent agents and multi-agent systems. In particular we discuss the logics that have been used to specify single agents, the

  12. Organizations as Socially Constructed Agents in the Agent Oriented Paradigm

    NARCIS (Netherlands)

    G. Boella (Guido); L.W.N. van der Torre (Leon)

    2005-01-01

    htmlabstractIn this paper we propose a new role for the agent metaphor in the definition of the organizational structure of multiagent systems. The agent metaphor is extended to consider as agents also social entities like organizations, groups and normative systems, so that mental attitudes can

  13. Three-agent Peer Evaluation

    OpenAIRE

    Vicki Knoblauch

    2008-01-01

    I show that every rule for dividing a dollar among three agents impartially (so that each agent's share depends only on her evaluation by her associates) underpays some agent by at least one-third of a dollar for some consistent profile of evaluations. I then produce an impartial division rule that never underpays or overpays any agent by more than one-third of a dollar, and for most consistent evaluation profiles does much better.

  14. Agent control of cooperating satellites

    OpenAIRE

    Lincoln, N.K.; Veres, S.M.; Dennis, Louise; Fisher, Michael; Lisitsa, Alexei

    2011-01-01

    A novel, hybrid, agent architecture for (small)swarms of satellites has been developed. The software architecture for each satellite comprises ahigh-level rational agent linked to a low-level control system. The rational agent forms dynamicgoals, decides how to tackle them and passes theactual implementation of these plans to the control layer. The rational agent also has access to aMatLabmodel of the satellite dynamics, thus allowing it to carry out selective hypothetical reasoningabout pote...

  15. Believable Social and Emotional Agents.

    Science.gov (United States)

    1996-05-01

    While building tools to support the creation of believable emotional agents, I had to make a number of important design decisions . Before describing...processing systems, it is difficult to give an artist direct control over the emotion - al aspects of the character. By making these decisions explicit, I hope...Woody on “Cheers”). Believable Agents BELIEVABLE SOCIAL AND EMOTIONAL AGENTS 11 Lesson: We don’t want agent architectures that enforce rationality and

  16. Chemical warfare agents

    Directory of Open Access Journals (Sweden)

    Vijayaraghavan R

    2010-01-01

    Full Text Available Among the Weapons of Mass Destruction, chemical warfare (CW is probably one of the most brutal created by mankind in comparison with biological and nuclear warfare. Chemical weapons are inexpensive and are relatively easy to produce, even by small terrorist groups, to create mass casualties with small quantities. The characteristics of various CW agents, general information relevant to current physical as well as medical protection methods, detection equipment available and decontamination techniques are discussed in this review article. A brief note on Chemical Weapons Convention is also provided.

  17. Chemical warfare agents

    Science.gov (United States)

    Ganesan, K.; Raza, S. K.; Vijayaraghavan, R.

    2010-01-01

    Among the Weapons of Mass Destruction, chemical warfare (CW) is probably one of the most brutal created by mankind in comparison with biological and nuclear warfare. Chemical weapons are inexpensive and are relatively easy to produce, even by small terrorist groups, to create mass casualties with small quantities. The characteristics of various CW agents, general information relevant to current physical as well as medical protection methods, detection equipment available and decontamination techniques are discussed in this review article. A brief note on Chemical Weapons Convention is also provided. PMID:21829312

  18. Holograms as Teaching Agents

    Science.gov (United States)

    Walker, Robin A.

    2013-02-01

    Hungarian physicist Dennis Gabor won the Pulitzer Prize for his 1947 introduction of basic holographic principles, but it was not until the invention of the laser in 1960 that research scientists, physicians, technologists and the general public began to seriously consider the interdisciplinary potentiality of holography. Questions around whether and when Three-Dimensional (3-D) images and systems would impact American entertainment and the arts would be answered before educators, instructional designers and students would discover how much Three-Dimensional Hologram Technology (3DHT) would affect teaching practices and learning environments. In the following International Symposium on Display Holograms (ISDH) poster presentation, the author features a traditional board game as well as a reflection hologram to illustrate conventional and evolving Three-Dimensional representations and technology for education. Using elements from the American children's toy Operation® (Hasbro, 2005) as well as a reflection hologram of a human brain (Ko, 1998), this poster design highlights the pedagogical effects of 3-D images, games and systems on learning science. As teaching agents, holograms can be considered substitutes for real objects, (human beings, organs, and animated characters) as well as agents (pedagogical, avatars, reflective) in various learning environments using many systems (direct, emergent, augmented reality) and electronic tools (cellphones, computers, tablets, television). In order to understand the particular importance of utilizing holography in school, clinical and public settings, the author identifies advantages and benefits of using 3-D images and technology as instructional tools.

  19. Amphoteric surface active agents

    Directory of Open Access Journals (Sweden)

    Eissa, A.M. F.

    1995-10-01

    Full Text Available 2-[trimethyl ammonium, triethyl ammonium, pyridinium and 2-amino pyridinium] alkanoates, four series of surface active agents containing carbon chain C12, C14, C16 and C18carbon atoms, were prepared. Their structures were characterized by microanalysis, infrared (IR and nuclear magnetic resonance (NMR. Surface and interfacial tension, Krafft point, wetting time, emulsification power, foaming height and critical micelle concentration (cmc were determined and a comparative study was made between their chemical structure and surface active properties. Antimicrobial activity of these surfactants was also determined.

    Se prepararon cuatro series de agentes tensioactivos del tipo 2-[trimetil amonio, trietil amonio, piridinio y 2-amino piridinio] alcanoatos, que contienen cadenas carbonadas con C12, C14, C16 y C18 átomos de carbono.
    Se determinaron la tensión superficial e interfacial, el punto de Krafft, el tiempo humectante, el poder de emulsionamiento, la altura espumante y la concentración critica de miscela (cmc y se hizo un estudio comparativo entre la estructura química y sus propiedades tensioactivas. Se determinó también la actividad antimicrobiana de estos tensioactivos. Estas estructuras se caracterizaron por microanálisis, infrarrojo (IR y resonancia magnética nuclear (RMN.

  20. [New agents for hypercholesterolemia].

    Science.gov (United States)

    Pintó, Xavier; García Gómez, María Carmen

    2016-02-19

    An elevated proportion of high cardiovascular risk patients do not achieve the therapeutic c-LDL goals. This owes to physicians' inappropriate or insufficient use of cholesterol lowering medications or to patients' bad tolerance or therapeutic compliance. Another cause is an insufficient efficacy of current cholesterol lowering drugs including statins and ezetimibe. In addition, proprotein convertase subtilisin kexin type 9 inhibitors are a new cholesterol lowering medications showing safety and high efficacy to reduce c-LDL in numerous already performed or underway clinical trials, potentially allowing an optimal control of hypercholesterolemia in most patients. Agents inhibiting apolipoprotein B synthesis and microsomal transfer protein are also providing a new potential to decrease cholesterol in patients with severe hypercholesterolemia and in particular in homozygote familial hypercholesterolemia. Last, cholesteryl ester transfer protein inhibitors have shown powerful effects on c-HDL and c-LDL, although their efficacy in cardiovascular prevention and safety has not been demonstrated yet. We provide in this article an overview of the main characteristics of therapeutic agents for hypercholesterolemia, which have been recently approved or in an advanced research stage. Copyright © 2015 Elsevier España, S.L.U. All rights reserved.

  1. Atributos físicos do solo relacionados ao armazenamento de água em um Argissolo Vermelho sob diferentes sistemas de preparo

    Directory of Open Access Journals (Sweden)

    Silva Mellissa Ananias Soler da

    2005-01-01

    Full Text Available Os sistemas de preparo afetam a estrutura do solo e podem influenciar o armazenamento de água disponível para as plantas. O objetivo deste estudo foi avaliar o efeito de longo prazo (17 anos dos sistemas de preparo convencional (PC, preparo reduzido (PR e semeadura direta (SD sobre os atributos físicos relacionados ao armazenamento e disponibilidade de água de um Argissolo Vermelho com textura média, em Eldorado do Sul, RS. Amostras de solo (0-2,5, 2,5-7,5, 7,5-12,5, 12,5-17,5cm foram coletadas numa seqüência ervilhaca/milho. Adicionalmente, amostrou-se uma área sob campo nativo (CN, adjacente à área experimental, como referência à condição natural do solo. O solo em SD apresentou maiores teores de carbono orgânico (CO na camada superficial e maiores valores de resistência ao penetrômetro em profundidade, em relação ao solo em preparo convencional. Os sistemas de preparo não se diferenciaram quanto ao seu efeito na macro e microporosidade do solo, contudo o revolvimento no PC aumentou a condutividade hidráulica saturada em profundidade. Não se verificou nenhuma restrição física ao desenvolvimento radicular sob os diferentes sistemas de preparo, o que foi comprovado pelos valores de densidade (1,35 a 1,65 Mg m-3, macroporosidade (0,09 a 0,20 m³ m-3 e resistência ao penetrômetro (0,25 a 0,75 MPa. Do ponto de vista hídrico, as curvas de retenção e o volume de água disponível (AD = 10 kPa (capacidade de campo - 1.500 kPa (ponto de murcha permanente, não foram influenciados pelos sistemas de preparo, sendo o baixo volume de água disponível (0,05 a 0,09 m³ m-3 relacionado à textura desse solo. Nesse caso, o aumento da taxa de infiltração e a diminuição da evaporação da água decorrente da manutenção dos resíduos vegetais sobre o solo nos sistemas de preparo reduzido e semeadura direta, podem contribuir para uma maior disponibilidade hídrica na fase inicial do estabelecimento das culturas nesses sistemas

  2. CAMBIOS EN LA COMPOSICIÓN DE LÍQUENES EPÍFITOS RELACIONADOS CON LA CALIDAD DEL AIRE EN LA CIUDAD DE LOJA (ECUADOR

    Directory of Open Access Journals (Sweden)

    DIEGO A. OCHOA-JIMÉNEZ

    2015-01-01

    Full Text Available A pesar de que la contaminación del aire constituye uno de los principales problemas en la ciudad de Loja, actualmente no existe una estrategia para monitorear las emisiones de contaminantes. Los líquenes epífitos han sido ampliamente utilizados como bioindicadores de la contaminación atmosférica, debido a que obtienen la mayor parte de nutrientes del aire, lo que los hace muy sensibles a los cambios derivados de la contaminación. Se evaluó la calidad del aire en siete parques de la ciudad, donde se registró la presencia y la cobertura de líquenes epífitos sobre árboles de Salix humboldtiana. Se determinaron los niveles de contaminación con el Índice de Pureza Atmosférica (IPA y se establecieron diferencias en la composición de especies de los parques mediante análisis de escalamiento multidimensional no métrico (NMDS y PERMANOVA. Nuestros resultados mostraron la existencia de una mayor calidad ambiental en las zonas norte y sur de la ciudad, mientras que se observa un patrón contrario para los parques ubicados en la zona central de la urbe, muy relacionados con un aumento de tráfico vehicular. Las comunidades de líquenes epífitos resultaron ser excelentes indicadores biológicos para detectar la contaminación del aire en la ciudad.

  3. Microencapsulation of chemotherapeutic agents

    International Nuclear Information System (INIS)

    Byun, Hong Sik

    1993-01-01

    Mixing various amounts of chemotherapeutic agents such as cisplatinum, 5-fluorouracil, mitomycin-C, and adriamycin with polymers such as poly-d, 1-lactide, ethylhydroxyethylcellulose, and polycaprolactone, several kinds of microcapsules were made. Among them, microcapsule made from ethylhydroxyethylcellulose showed best yield. Under light microscopy, the capsules were observed as particles with refractive properties. For the basic toxicity test, intraarterial administration of cisplatinum was done in 6 adult mongrel dogs. Follow-up angiography was accomplished in 2 wk intervals for 6 wks. Despite no significant difference in the histopathological examination between the embolized and normal kidneys, follow-up angiogram showed atrophy of renal cortex and diminished numbers of arterial branches in the embolized kidneys. In order to identify the structural properties of microcapsules, and to determine the drug content and the rate of release, further experiment is thought to be necessary. (Author)

  4. New MR contrast agent

    International Nuclear Information System (INIS)

    Grossman, C.D.; Subramanian, G.; Schneider, R.; Szeverenyi, N.E.; Rosenbaum, A.M.; Gagne, G.; Tillapaugh-Fay, G.; Berlin, R.; Ritter-Hrncirik, C.; Yu, S.

    1990-01-01

    This paper evaluates an MR contrast agent-meglumine tris-(2,6-dicarboxypyridine) gadolinium (III) or gadolinium dipicolinate (Gd-DPC)-produced in-house. Rats were anesthetized with pentobarbital. For renal imaging, bowel motion artifact was minimized with glucagon (0.014 mg/kg, intravenous (IV)). Enhanced images were generated on a 2-T chemical shift imaging system with a 31-cm horizontal bore magnet after IV injection of Gd-DPC (100 μM/kg). Coronal sections of the kidneys and sagittal sections of the brain, 2 mm thick, were made. Six to eight excitations and 128 or 356 phase-encoding steps were used for each image. Control animals were injected with equivalent doses of gadopentetate dimeglumine

  5. A Composite Agent Architecture for Multi-Agent Simulations

    OpenAIRE

    VanPutte, Michael; Osborn, Brian; Hiles, John

    2002-01-01

    CGF Computer Generated Forces and Behavioral Representation The MOVES Institute’s Computer-Generated Autonomy Group has focused on a research goal of modeling complex and adaptive behavior while at the same time making the behavior easier to create and control. This research has led to several techniques for agent construction, that includes a social and organization relationship management engine, a composite agent architecture, an agent goal apparatus, a structure for capturi...

  6. MIOCARDIOPATÍA DILATADA: ASPECTOS GENÉTICOS, INFECCIOSOS, INFLAMATORIOS Y DEL SISTEMA INMUNE

    Directory of Open Access Journals (Sweden)

    Dr. José Luis Vukasovic R.

    2015-03-01

    No hay duda que en un futuro próximo las mejoras en la secuenciación de genes y el mayor conocimiento de la patogenia influirán decididamente en el diagnóstico, evaluación y tratamiento de esta entidad.

  7. Odor Classification using Agent Technology

    Directory of Open Access Journals (Sweden)

    Sigeru OMATU

    2014-03-01

    Full Text Available In order to measure and classify odors, Quartz Crystal Microbalance (QCM can be used. In the present study, seven QCM sensors and three different odors are used. The system has been developed as a virtual organization of agents using an agent platform called PANGEA (Platform for Automatic coNstruction of orGanizations of intElligent Agents. This is a platform for developing open multi-agent systems, specifically those including organizational aspects. The main reason for the use of agents is the scalability of the platform, i.e. the way in which it models the services. The system models functionalities as services inside the agents, or as Service Oriented Approach (SOA architecture compliant services using Web Services. This way the adaptation of the odor classification systems with new algorithms, tools and classification techniques is allowed.

  8. Agent-based enterprise integration

    Energy Technology Data Exchange (ETDEWEB)

    N. M. Berry; C. M. Pancerella

    1998-12-01

    The authors are developing and deploying software agents in an enterprise information architecture such that the agents manage enterprise resources and facilitate user interaction with these resources. The enterprise agents are built on top of a robust software architecture for data exchange and tool integration across heterogeneous hardware and software. The resulting distributed multi-agent system serves as a method of enhancing enterprises in the following ways: providing users with knowledge about enterprise resources and applications; accessing the dynamically changing enterprise; locating enterprise applications and services; and improving search capabilities for applications and data. Furthermore, agents can access non-agents (i.e., databases and tools) through the enterprise framework. The ultimate target of the effort is the user; they are attempting to increase user productivity in the enterprise. This paper describes their design and early implementation and discusses the planned future work.

  9. Radioactive scanning agents with stabilizer

    International Nuclear Information System (INIS)

    Fawzi, M.B.

    1982-01-01

    Stable compositions useful as technetium 99-based scintigraphic agents comprise gentisyl alcohol or a pharmaceutically-acceptable salt or ester thereof in combination with a pertechnetate reducing agent or dissolved in pertechnetate-99m (sup(99m)TcOsub(4)sup(-)) solution. The compositions are especially useful in combination with a phosphate or phosphonate material that carries the radionuclide to bone, thus providing a skeletal imaging agent

  10. Principals, agents and research programmes

    OpenAIRE

    Elizabeth Shove

    2003-01-01

    Research programmes appear to represent one of the more powerful instruments through which research funders (principals) steer and shape what researchers (agents) do. The fact that agents navigate between different sources and styles of programme funding and that they use programmes to their own ends is readily accommodated within principal-agent theory with the help of concepts such as shirking and defection. Taking a different route, I use three examples of research programming (by the UK, ...

  11. Fatores relacionados à institucionalização: perspectivas de crianças vítimas de violência intrafamiliar Factores relacionados con la institucionalización: perspectiva de niños víctimas de violencia intrafamiliar Factors associated with institutionalization: perspectives for children who suffered domestic violence

    Directory of Open Access Journals (Sweden)

    Ruth Irmgard Bärtschi Gabatz

    2010-12-01

    Full Text Available Pesquisa qualitativa que objetivou compreender os fatores relacionados à institucionalização de crianças vítimas de violência intrafamiliar. Foi desenvolvida em duas instituições de abrigo localizadas no sul do Brasil, nos meses de junho e julho de 2008. Para produção dos dados, utilizou-se o Método Criativo Sensível desenvolvendo-se duas dinâmicas de criatividade e sensibilidade, brincar em cena e corpo saber, com quatro crianças, com idades entre 8 e 11 anos. Os dados foram submetidos à análise de discurso francesa. Os resultados apontaram como fatores associados à institucionalização: problemas mentais e uso abusivo de álcool da mãe e agressão. Acredita-se que o reconhecimento dos fatores associados à violência intrafamiliar possibilita atuar preventivamente, minimizando os efeitos deletérios que esta pode causar aos integrantes da família. Assim, o cuidado não deve se resumir somente às crianças vítimas de violência, mas necessita envolver o cuidado às famílias, abrangendo vítimas e agressores.Investigación cualitativa que ha objetivado comprender los factores relacionados a la institucionalización de niños víctimas de violencia intrafamiliar. Ha sido desarrollada en dos instituciones de abrigo ubicadas en el sur de Brasil, durante los meses de junio y julio de 2008. Ha sido empleado el Método Creativo Sensible con la realización de dos dinámicas de creatividad y sensibilidad: Jugar en Escena y Cuerpo Saber, con cuatro niños cuya edad variaba entre 8 y 11 años. Los datos han sido sometidos al análisis del discurso francés. Los resultados: problemas mentales e empleo abusivo del alcohol de la madre y agresión. Se cree que el reconocimiento los factores relacionados a la violencia intrafamiliar posibilita actuar preventivamente y reducir los efectos nocivos. Así pues, no se puede solamente dar atención y cuidado a los niños, sino hay que asistir también a las familias, es decir, atender a las v

  12. Business Intelligence using Software Agents

    Directory of Open Access Journals (Sweden)

    Ana-Ramona BOLOGA

    2011-12-01

    Full Text Available This paper presents some ideas about business intelligence today and the importance of developing real time business solutions. The authors make an exploration of links between business intelligence and artificial intelligence and focuses specifically on the implementation of software agents-based systems in business intelligence. There are briefly presented some of the few solutions proposed so far that use software agents properties for the benefit of business intelligence. The authors then propose some basic ideas for developing real-time agent-based software system for business intelligence in supply chain management, using Case Base Reasoning Agents.

  13. GOAL Agents Instantiate Intention Logic

    OpenAIRE

    Hindriks, Koen; van der Hoek, Wiebe

    2008-01-01

    It is commonly believed there is a big gap between agent logics and computational agent frameworks. In this paper, we show that this gap is not as big as believed by showing that GOAL agents instantiate Intention Logic of Cohen and Levesque. That is, we show that GOAL agent programs can be formally related to Intention Logic.We do so by proving that the GOAL Verification Logic can be embedded into Intention Logic. It follows that (a fragment of) Intention Logic can be used t...

  14. Aspects of agents for safeguards

    International Nuclear Information System (INIS)

    Kotte, U.

    1999-01-01

    With the development of the Internet and the WWW, information treatment has gained a new dimension. (Intelligent) software agents are one of the means expected to relieve human staff of the burden of information overload, and in the future to contribute to safeguards data acquisition, data evaluation and decision-making. An overview is given for the categories of Internet, intranet and desktop agents. Aspects of the potential application of agents are described in three fields: information access and delivery, collaboration and workflow management, adaptive interfaces and learning assistants. Routine application of agents is not yet in sight, but the scientific and technical progress seems to be encouraging. (author)

  15. Stable agents for imaging investigations

    International Nuclear Information System (INIS)

    Tofe, A.J.

    1976-01-01

    This invention concerns highly stable compounds useful in preparing technetium 99m based scintiscanning exploration agents. The compounds of this invention include a pertechnetate reducing agent or a solution of oxidized pertechnetate and an efficient proportion, sufficient to stabilize the compounds in the presence of oxygen and of radiolysis products, of ascorbic acid or a pharmaceutically acceptable salt or ester of this acid. The invention also concerns a perfected process for preparing a technetium based exploration agent, consisting in codissolving the ascorbic acid or a pharmaceutically acceptable salt or ester of such an acid and a pertechnetate reducing agent in a solution of oxidized pertechnetate [fr

  16. Fatores prognósticos relacionados à falha do tratamento não-operatório de lesões esplênicas no trauma abdominal fechado

    Directory of Open Access Journals (Sweden)

    Fábio Henrique de Carvalho

    Full Text Available OBJETIVO: Identificar fatores prognósticos relacionados com a falha do tratamento não-operatório (TNO de lesões esplênicas no trauma abdominal fechado. MÉTODOS: Análise prospectiva de 56 pacientes adultos submetidos à TNO e divididos em um grupo de sucesso e outro de falha, que foi definida como necessidade de laparotomia por qualquer indicação. As lesões foram diagnosticadas por tomografia computadorizada e classificadas de acordo com os critérios da AAST (American Association for Surgery of Trauma. Os parâmetros estudados foram: na admissão - pressão arterial sistólica, frequências cardíaca e respiratória, nível de consciência (Escala de Glasgow e RTS (Revised Trauma Score; durante a hospitalização - presença de lesões associadas, transfusão sanguínea e parâmetros hematológicos, tempo de internação e ISS (Injury Severity Score. RESULTADOS: As falhas do TNO (19,6% foram devidas à dor abdominal (45,4%, instabilidade hemodinâmica (36,4%, queda do volume globular associada a hematoma esplênico (9,1% e abscesso esplênico (9,1%. Não foram observadas diferenças entre os grupos de sucesso e de falha nos dados na admissão. A taxa de falha de acordo com o grau da lesão esplênica foi 0% nos graus I e II agrupados; 17,5% nos graus III e IV agrupados e 80% no grau V (p = 0,0008. O uso de hemoderivados foi maior e mais frequente no grupo de falha (p=0,05. As relação do ISS (Injury Severity Score com as taxas de falha foram 0% nos pacientes com ISS = 8; 15,9% nos com ISS entre 9 e 25, e 50% nos com ISS = 26 (p = 0,05. Não houve mortalidade e nem lesões de vísceras ocas despercebidas. CONCLUSÃO: O Injury Severity Score e grau da lesão esplênica relacionaram-se com a falha do tratamento não-operatório.

  17. Risk factors relating to helminth infections in cows during the peripartum Fatores de risco relacionados à infecção por helmintos em vacas durante o periparto

    Directory of Open Access Journals (Sweden)

    Jenevaldo Barbosa da Silva

    2012-06-01

    Full Text Available The aim of this study was to investigate whether season, lactation number, breed standard and milk production were risk factors relating to occurrences of gastrointestinal nematodes in dairy cows during the peripartum period. Eighty-four cows were randomly selected through proportional stratified sampling. In order to analyze the fecal egg per gram (EPG count, the data were subjected to the Spearman test, Kruskal-Wallis test at 5% significance and linear regression. At the time of calving, the cows showed high EPG counts in relation to all variables analyzed. Among the animals studied, we observed that purebred Holstein cows at their first lactation and with high milk production showed high EPG counts (600 and comprised the group most at risk within the herd studied. In this group, the animals showed moderate EPG during the prepartum period (300 and a significant increase (p O objetivo foi investigar a estação do ano, número de lactações, padrão racial e produção de leite como fatores de risco relacionados à ocorrência de helmintos gastrintestinais em vacas durante o periparto. Foram selecionadas randomicamente 84 vacas através de amostragem estratificada proporcional. Para análise dos resultados da contagem de ovos por grama de fezes (OPG, foram utilizados os testes de Spearman , Kruskal-Wallis a 5% de significância e regressão linear. Entre os fatores de risco avaliados, o parto esteve associado à elevada contagem de OPG em todos os grupos estudados. Por ocasião do parto, as vacas apresentaram alta contagem de OPG em relação a todas as variáveis analisadas. Dentre os animais estudados, observou-se que vacas holandesas puras de primeira lactação e de alta produção leiteira apresentaram elevada contagem de OPG (600, constituindo o grupo de maior risco dentro do rebanho estudado. Nesse grupo, observou-se que os animais apresentaram contagem de OPG moderada no pré-parto (300, com aumento significativo (p < 0.01 na contagem

  18. Conocimientos y factores de riesgo relacionados con la enfermedad de Chagas en dos comunidades panameñas donde Rhodnius pallescens es el vector principal

    Directory of Open Access Journals (Sweden)

    Lisbeth A. Hurtado

    2014-06-01

    Full Text Available Introducción. La implementación de los programas de vigilancia, prevención y control de la enfermedad de Chagas requiere una aproximación integral. La sostenibilidad de los programas depende de la participación comunitaria amparada en un conocimiento básico del problema. Objetivo. Evaluar los conocimientos de los entrevistados que facilitan o limitan la vigilancia, prevención y control de la enfermedad de Chagas en dos comunidades endémicas de Panamá donde Rhodnius pallescens es el vector principal. Materiales y métodos. Mediante un cuestionario se evaluaron los conocimientos y los factores de riesgo relacionados con la enfermedad de Chagas en 201 personas mayores de 10 años de las comunidades endémicas de Las Pavas y Lagartera Grande, ubicadas en la ribera oeste del Canal de Panamá. Con ayuda de los moradores también se evaluó la presencia de chinches triatominos en 93 viviendas a lo largo de un año. Resultados. De las personas entrevistadas, 69,2 % (139/201 tenía pocos o muy pocos conocimientos sobre la enfermedad de Chagas y 93 % (187/201 estaba expuesto a factores de riesgo moderados o altos. Se capturaron chinches triatominos en 20,4 % (19/93 de las viviendas evaluadas, de los cuales, el 86,8 % (66/76 era R. pallescens. Se encontró asociación significativa entre la presencia de chinches dentro de las viviendas y las viviendas catalogadas como precarias (p<0,01. Conclusión. A pesar de que en estas dos comunidades se han desarrollado programas de educación sanitaria, es necesario reforzar los conocimientos básicos sobre la enfermedad de Chagas antes de establecer medidas de prevención y vigilancia que involucren la participación activa de sus habitantes.

  19. Desastres relacionados à seca e saúde coletiva – uma revisão da literatura científica

    Directory of Open Access Journals (Sweden)

    Tais Ariza Alpino

    2016-03-01

    Full Text Available Resumo No Brasil, a história das secas é marcada por seguidas tragédias sociais e sanitárias, com estimativas de 3 milhões de óbitos entre o início do século XIX e o final do século XX e o registro de quase 32 mil eventos e mais de 96 milhões de afetados entre 1991 e 2010. Apesar de no Brasil a seca ser um desastre histórico, não encontramos, desde a expedição científica de Arthur Neiva e Belisário Penna em 1912 nas zonas flageladas pela seca, muitas pesquisas sobre a relação seca e saúde no Brasil. O objetivo deste trabalho é apresentar uma revisão dos artigos científicos sobre a relação seca e saúde coletiva. Foram utilizadas as bases de dados PubMed, Portal Preparação e Respostas a Desastres da BVS e Portal de Periódicos da Capes, utilizando-se os descritoresdrought and health no título e resumo, selecionando-se somente artigos em inglês e espanhol com relação direta com os temas em saúde. Dentre os efeitos sobre a saúde encontrados, destacam-se os relacionados à desnutrição e deficiências nutricionais, saúde mental, qualidade das águas e do ar, além do comprometimento da qualidade e do acesso aos serviços de saúde. Considerando-se as tendências de episódios de seca mais intensos e frequentes e de escassez de água até 2030, torna-se urgente ampliar as pesquisas sobre o tema e revisões da literatura.

  20. La epidemia de obesidad y sus factores relacionados: el caso de España The obesity epidemic and related factors: the case of Spain

    Directory of Open Access Journals (Sweden)

    Juan Luis Gutiérrez-Fisac

    2003-01-01

    Full Text Available La epidemia de obesidad es un fenómeno universal que no parece reconocer límites ni geográficos ni sociodemográficos. Las investigaciones sobre los factores responsables de la epidemia se centran sobre algunas de las condiciones sociales y económicas que imperan en las sociedades actuales. El presente artículo muestra la situación de la obesidad en España y la tendencia de una serie de factores potencialmente relacionados. El incremento en la prevalencia de obesidad se acompañó de importantes cambios en el patrón de alimentación de la población a pesar de una tendencia estabilizada en la ingesta calórica total y de grasas. Diversos indicadores indirectos muestran la tendencia sedentaria de la población, a pesar de que un mayor porcentaje de la población declara realizar ejercicio físico en su tiempo libre. Los factores dependientes del gasto energético parecen tan o más importantes que los derivados del ingreso. Para explicar la situación paradójica de los distintos indicadores de sedentarismo se sugiere la hipótesis de un aumento del "stock de tiempo libre" en las sociedades actuales.The obesity epidemic is a global phenomenon that does not respect geographic or socio-demographic boundaries. Thus, research on factors related to the obesity epidemic has focused on social and economic characteristics of modern societies. This article discusses obesity in Spain and trends in several associated factors. Together with the increase in the prevalence of obesity, important changes in the population's dietary pattern have been observed, although total energy and fat intake appear to be stable. According to several indirect indicators, sedentary behavior predominates, although the percentage of the population reporting some leisure exercise is increasing. An increase in the amount of leisure time in modern societies is suggested as an explanation for this paradox. Factors related to energy expenditure could be as important as

  1. Profissionais do sexo: sentidos produzidos no cotidiano de trabalho e aspectos relacionados ao HIV Sex professionals: HIV-related aspects and generating meanings in daily work

    Directory of Open Access Journals (Sweden)

    Ana Paula Gomes Esposito

    2006-01-01

    Full Text Available Nesta pesquisa qualitativa foi analisado o processo de construção da subjetividade de nove profissionais do sexo entrevistadas, apreendendo o processo de produção de sentidos relacionados à contextualização do HIV em seu cotidiano de trabalho. Destas, quatro eram soropositivas. Foram identificados e analisados sete núcleos de significado (Família como desencadeadora e mantedora da atividade de profissional do sexo; Identidades diversas nos diferentes ambientes freqüentados: cisão trabalho x afetividade; Contradições vividas acerca do trabalho; AIDS como fator limitante dos prazeres em suas vidas e como empecilho para a continuidade do exercício de suas atividades; Fatores associados ao aumento da vulnerabilidade ao HIV; Serviço de Saúde como facilitador do processo de adesão ao tratamento e Entrevista como propiciadora de intervenções. Enquanto nas entrevistadas soronegativas predominaram sentimentos ambivalentes e contraditórios em relação à atividade, nas soropositivas foi observada uma polarização nos desprazeres desta atividade, inviabilizando sua continuidade após processo de adoecimento desencadeado pela AIDS.This qualitative research analyzes the construction process of subjectivity of nine sex professionals who have been interviewed, grasping the process of generating meanings in the context of HIV in their daily work. Amongst these nine women, four were HIV carriers. Seven nodes of signification were identified and analyzed (Family as an element that causes and maintains their activity as sex professionals; Varying identities in different frequented environments: separation of work from affectivity; Contradictions that were experienced concerning work; AIDS as a limiting factor for pleasure in their lives and as an impediment to continue to practice their activities; Factors associated with the increase of vulnerability to HIV; Health Care as a facilitator in the process of adhering to treatment and the

  2. Carcinoma basocelular da pálpebra: fatores relacionados com a recidiva tumoral Basal cell carcinoma of the eyelid: factors related to recurrence

    Directory of Open Access Journals (Sweden)

    Luciana Akemi Ishi

    2004-08-01

    Full Text Available FUNDAMENTOS: O carcinoma basocelular (CBC palpebral é o tumor maligno mais freqüente das pálpebras, sendo possível observar casos em que existe recidiva após a exérese tumoral. OBJETIVO: O objetivo deste estudo foi procurar reconhecer fatores relacionados com a recidiva do CBC palpebral. MÉTODOS: No período de 1998 a 2001 foram detectados, na Faculdade de Medicina de Botucatu/Unesp, 23 pacientes que apresentaram recidiva clínica de CBC palpebral. Foi realizada análise retrospectiva dos pacientes, analisando-se idade, sexo, história de exposição solar, localização do tumor na pálpebra, diagnóstico clínico, diagnóstico histológico, acometimento de bordas cirúrgicas e tempo de seguimento. RESULTADOS: Em meio aos 23 pacientes analisados, não houve predominância de sexo, e a média de idade foi de 72,9 anos. Dos tumores localizados exclusivamente na pálpebra inferior, sobretudo no canto interno (74,0%, 34,7% eram do tipo sólido ulcerado, e a maioria (66,6% apresentava margens cirúrgicas livres, quando da ressecção tumoral. CONCLUSÃO: A maioria das recidivas de CBC palpebral foi de tumores do tipo sólido e localizados no canto interno. Margens cirúrgicas livres não representam garantia de que a lesão não vá recidivar ou surgir "de novo".BACKGROUND: Basal cell carcinoma (BCC is the most common malignant tumor located in the eyelid and there is a possibility of recurrent tumor after excision. OBJECTIVE: This study was done to evaluate the features related to recidive basal cell carcinoma. METHODS: A retrospective survey was done at Botucatu School of Medicine - UNESP, from 1998 to 2001. A total of 23 patients presented recidive basal cell carcinoma. The patients were studied according to sex, age, solar exposure, tumor localization, histological presentation, resection margins and follow up. RESULTS: Recidive BCC occurred in Caucasians, mostly in females (52.0%, all in the lower eyelid, mainly in the internal canthus

  3. Problemas relacionados con el consumo de alcohol en jóvenes de la provincia de Jujuy, Argentina Problems related to alcohol drinking among youth in Jujuy, Argentina

    Directory of Open Access Journals (Sweden)

    Ethel Alderete

    2008-08-01

    Full Text Available OBJETIVO: Examinar los patrones de consumo y los problemas relacionados con el alcohol en jóvenes de la provincia de Jujuy, Argentina. MATERIAL Y MÉTODOS: En el año 2005 se aplicó una encuesta a una muestra representativa de 2924 jóvenes de noveno grado (12-17 años, incluidas la información sociodemográfica y de consumo y la prueba AUDIT-C. RESULTADOS: Hasta 9% de las mujeres y 11% de los varones refirieron consumo de riesgo; asimismo, 12% de las mujeres y 19% de los varones notificaron síntomas de dependencia. Las mujeres presentaban menor probabilidad que los varones de experimentar síntomas de dependencia (RM ajustada 0.7; IC95% 0.6-0.8 o de consumo perjudicial (RM ajustada 0.7; IC95% 0.6-0.8. Tener mayor edad, trabajar y asistir al turno nocturno fueron factores de riesgo para el consumo de riesgo, síntomas de dependencia y consumo perjudicial. CONCLUSIONES: Los resultados ponen de relieve la importancia de instituir intervenciones de prevención y tratamiento para los adolescentes.OBJECTIVE: To examine drinking patterns and alcohol-related problems among youth in Jujuy, Argentina. MATERIAL AND METHODS: A survey was conducted in 2005 with a representative sample of 9th grade youth (12 to 17 years old including sociodemographic and consumption data, and the AUDIT-C test. RESULTS: Nine percent of girls and 11% of boys reported hazardous drinking; 12% of girls and 19% of boys reported dependence symptoms. The odds ratio for dependence symptoms (adjusted OR 0.7; 95%CI: 0.6-0.8 and for hazardous drinking (adjusted OR 0.7; 95%CI: 0.6-0.8 was significantly lower for girls compared with boys. Older age, working, and attending night school were risk factors for hazardous drinking, dependence symptoms, and harmful drinking. CONCLUSIONS: A significant proportion of youth reported problematic patterns of alcohol drinking, highlighting the need to implement prevention and treatment interventions tailored to the adolescent population.

  4. Incorporating BDI Agents into Human-Agent Decision Making Research

    Science.gov (United States)

    Kamphorst, Bart; van Wissen, Arlette; Dignum, Virginia

    Artificial agents, people, institutes and societies all have the ability to make decisions. Decision making as a research area therefore involves a broad spectrum of sciences, ranging from Artificial Intelligence to economics to psychology. The Colored Trails (CT) framework is designed to aid researchers in all fields in examining decision making processes. It is developed both to study interaction between multiple actors (humans or software agents) in a dynamic environment, and to study and model the decision making of these actors. However, agents in the current implementation of CT lack the explanatory power to help understand the reasoning processes involved in decision making. The BDI paradigm that has been proposed in the agent research area to describe rational agents, enables the specification of agents that reason in abstract concepts such as beliefs, goals, plans and events. In this paper, we present CTAPL: an extension to CT that allows BDI software agents that are written in the practical agent programming language 2APL to reason about and interact with a CT environment.

  5. The Agent of Change: The Agent of Conflict.

    Science.gov (United States)

    Hatfield, C. R., Jr.

    This speech examines the role of change agents in third world societies and indicates that the change agent must, to some extent, manipulate the social situation, even if his view of society is a more optimistic one than he finds in reality. If he considers strains and stresses to be the lubricants of change, then his focus on conflict as a…

  6. Biofeedback no tratamento de transtornos relacionados ao estresse e à ansiedade: uma revisão crítica Biofeedback en el tratamiento de trastornos relacionados con el estrés y la ansiedad: una revisión crítica Biofeedback in the treatment of stress and anxiety-related disorders: a critical review

    Directory of Open Access Journals (Sweden)

    Ricardo da Costa Padovani

    2013-04-01

    Full Text Available O treinamento em biofeedback tem sido utilizado para o tratamento de diferentes quadros clínicos e para a prevenção/alívio de sintomas relacionados ao estresse/ansiedade. Este trabalho analisou a literatura de 2008 a 2012 sobre o tema "biofeedback, estresse e ansiedade" publicada nas bases MEDLINE, LILACS e Web of Sciences, utilizando como palavras-chave "biofeedback", "anxiety", "stress", "psychology" e "biofeedback training". Os resultados demonstram que técnicas de biofeedback são eficazes no manejo do estresse/ansiedade nas diferentes populações estudadas. Entretanto, todos os estudos encontrados foram realizados fora do Brasil, o que sugere que técnicas de biofeedback como ferramenta terapêutica não tem sido utilizadas no país, por algum motivo que merece ser melhor investigado.El entrenamiento con biofeedback se ha utilizado para el tratamiento de diferentes manifestaciones clínicas y para la prevención y alivio de síntomas relacionados con el estrés/ansiedad. Este estudio analizó la literatura desde 2008 hasta 2012 sobre el tema "biofeedback, estrés y ansiedad", publicada en MEDLINE, LILACS y Web of Sciences, utilizando como palabras clave "biofeedback", "anxiety", "stress", "psychology" y "biofeedback training". Los resultados demuestran que técnicas de biofeedback son eficaces para el tratamiento del estrés y la ansiedad en diferentes poblaciones. Sin embargo, todos los estudios encontrados se realizaron fuera de Brasil, un indicador de que el biofeedback como herramienta terapéutica no ha sido utilizado en el país por una razón que debe investigarse más a fondo.Biofeedback training has been utilized for the treatment of different pathological conditions, in particular those related to stress/anxiety. This study reviews the scientific literature from 2008 to 2012 about the subject "biofeedback, stress and anxiety", published in MEDLINE, LILACS and Web of Sciences, using as keywords "biofeedback", "anxiety

  7. Distúrbios osteomusculares relacionados ao trabalho em profissionais de enfermagem: revisão integrativa da literatura Disturbios osteomusculares relacionados al trabajo en profesionales de enfermería: revisión integrativa de la literatura Work-related musculoskeletal disorders in nursing professionals: an integrative literature review

    Directory of Open Access Journals (Sweden)

    Cheila Maíra Lelis

    2012-01-01

    Full Text Available OBJETIVO: Avaliar as evidências sobre o adoecimento de trabalhadores de enfermagem pelos Distúrbios Osteomusculares Relacionados ao Trabalho (DORT. MÉTODOS: Revisão integrativa da literatura utilizando as bases: Biblioteca Virtual em Saúde (BVS, BVS Enfermagem, Scopus e Banco de Teses da Universidade de São Paulo (USP obtendo-se 17 estudos. RESULTADOS: Evidenciou-se que os DORT acometem os profissionais de enfermagem e relacionam-se às condições inadequadas dos ambientes de trabalho, à organização e estrutura do trabalho. CONCLUSÃO: É necessário investir em programas preventivos, capacitações, educação em saúde, estratégias de intervenção e organização dos serviços existentes.OBJETIVO: Evaluar las evidencias sobre el padecimiento de trabajadores de enfermería por los Disturbios Osteomusculares Relacionados al Trabajo (DORT. MÉTODOS: Revisión integrativa de la literatura utilizando las bases: Biblioteca Virtual en Salud (BVS, BVS Enfermagem, Scopus y Banco de Tesis de la Universidad de Sao Paulo (USP obteniéndose 17 estudios. RESULTADOS: Se evidenció que los DORT atacan a los profesionales de enfermería y se relacionan a las condiciones inadecuadas de los ambientes de trabajo, a la organización y estructura del trabajo. CONCLUSIÓN: es necesario invertir en programas preventivos, capacitaciones, educación en salud, estrategias de intervencion y organización de los servicios existentes.OBJECTIVE: To evaluate evidence of the susceptibility of the nursing staff for Work-Related Musculoskeletal Disorders (WRMD. METHODS: An integrative review of the literature using the databases: Virtual Health Library (VHL , VHL Nursing, Scopus and Theses Database of the University of São Paulo (USP, obtained 17 studies. RESULTS: It was evident that WRMD affect nursing professionals and relate to the inadequate conditions of the workplace, and to the organization and structure of work. CONCLUSION: It is necessary to invest in

  8. Gastrointestinal scanning agent

    International Nuclear Information System (INIS)

    Francis, M.D.

    1980-01-01

    An easily prepared radiolabeled gastrointestinal scanning agent is described. Technetium-99m has ideal characteristics for imaging the upper and lower GI tract and determining stomach emptying and intestinal transit time when used with an insoluble particulate material. For example, crystalline and amorphous calcium phosphate particles can be effectively labeled in a one-step process using sup(99m)TcO 4 and SnCl 2 . These labeled particles have insignificant mass and when administered orally pass through the GI tract unchanged, without affecting the handling and density of the intestinal contents. Visualization of the esophageal entry into the stomach, the greater and lesser curvatures of the stomach, ejection into the duodenum, and rates of passage through the upper and lower GI tract are obtained. The slurry of sup(99m)TC particulate can be given rectally by enema. Good images of the cecum and the ascending, transverse, and descending colon are obtained. Mucosal folds and the splenic and hepatic flexures are visualized. The resilience of the large intestine is also readily visualized by pneumocolonographic techniques. (author)

  9. TACtic- A Multi Behavioral Agent for Trading Agent Competition

    Science.gov (United States)

    Khosravi, Hassan; Shiri, Mohammad E.; Khosravi, Hamid; Iranmanesh, Ehsan; Davoodi, Alireza

    Software agents are increasingly being used to represent humans in online auctions. Such agents have the advantages of being able to systematically monitor a wide variety of auctions and then make rapid decisions about what bids to place in what auctions. They can do this continuously and repetitively without losing concentration. To provide a means of evaluating and comparing (benchmarking) research methods in this area the trading agent competition (TAC) was established. This paper describes the design, of TACtic. Our agent uses multi behavioral techniques at the heart of its decision making to make bidding decisions in the face of uncertainty, to make predictions about the likely outcomes of auctions, and to alter the agent's bidding strategy in response to the prevailing market conditions.

  10. Prevalência e fatores de risco relacionados ao uso de drogas entre escolares Prevalence and risk factors associated with drug use among school students, Brazil

    Directory of Open Access Journals (Sweden)

    José Baus

    2002-02-01

    Full Text Available OBJETIVO: Analisar a prevalência e os fatores de risco relacionados ao uso indevido de drogas entre estudantes de uma escola pública de primeiro e segundo graus. MÉTODOS: Foi realizado estudo descritivo transversal, utilizando, como instrumento de pesquisa, um questionário anônimo, padronizado e amplamente testado no Brasil para levantamento do uso de drogas. A população estudada foi constituída de 478 estudantes de escola pública de primeiro e segundo graus, de Florianópolis, SC. Os questionários foram aplicados por estudantes universitários devidamente treinados. Entre os estudantes pesquisados, 43% e 32% foram de faixa etária de 13 a 15 anos e de 16 a 18 anos, respectivamente, com predomínio de classes socioeconômicas mais altas. RESULTADOS: A prevalência de uso de maconha na vida (19,9%, solventes (18,2%, anfetamínicos (8,4% e álcool (86,8% foi elevada em Florianópolis, comparada a outras capitais da região Sul e à média brasileira. Notou-se elevado e freqüente uso (seis ou mais vezes por mês de álcool (24,2%, maconha (4,9%, solventes (2,5% e anfetamínicos (2,3%. Os fatores demográficos relacionados ao uso de drogas na vida foram idade, sexo, classe socioeconômica e vida junto aos pais. A chance de garotas usarem remédios para emagrecer ou ficarem acordadas foi o dobro da chance de garotos e, quanto ao uso de tranqüilizantes, quase o triplo. Os garotos tinham um risco quase duas vezes maior de uso de solvente do que as garotas. A classe socioeconômica alta foi associada a um risco duas vezes maior do uso de álcool do que a classe baixa. O risco de uso de cigarro e maconha na vida foi 84% e 67% maior, respectivamente, para alunos cujos pais estavam separados. CONCLUSÃO: Constatou-se alta prevalência de uso de várias drogas entre os alunos de primeiro e segundo graus.OBJECTIVE: To assess prevalence and risk factors associated with drug abuse among public elementary and high school students in the southern

  11. Artificial agents learning human fairness

    NARCIS (Netherlands)

    Jong, de S.; Tuyls, K.P.; Verbeeck, K.; Padgham, xx; Parkes, xx

    2008-01-01

    Recent advances in technology allow multi-agent systems to be deployed in cooperation with or as a service for humans. Typically, those systems are designed assuming individually rational agents, according to the principles of classical game theory. However, research in the field of behavioral

  12. Overview of shoreline cleaning agents

    International Nuclear Information System (INIS)

    Clayton, J.

    1992-01-01

    Chemical cleaning agents may be used to promote release of stranded oil from shorelines for reasons including biological sensitivity of indigenous fauna and flora to the oil, amenity considerations of the shoreline, or concern about refloating of the oil and subsequent stranding on adjacent shorelines. While use of chemical cleaning agents may be appropriate under proper toxic responses in circumstances, certain limitations should be recognized. The potential for toxic responses in indigenous fauna and flora to the cleaning agents must be considered. Enhanced penetration of oil into permeable shorelines following treatment with chemical cleaning agents also is not desirable. However, if conditions related to toxicity and substrate permeability are determined to be acceptable, the use of chemical cleaning agents for treatment of stranded oil can be considered. Chemical agents for cleaning oiled shorelines can be grouped into three categories: (1) non-surfactant-based solvents, (2) chemical dispersants, and (3) formulations especially designed to release stranded oil from shoreline substrates (i.e., shoreline-cleaning-agents). Depending on the specific circumstances present on an oiled shoreline, it is generally desirable that chemical agents used for cleaning will release oil from shoreline substrate(s) to surface waters. Recovery of the oil can then be accomplished by mechanical procedures such as booming and skimming operations

  13. Reactive agents and perceptual ambiguity

    NARCIS (Netherlands)

    Dartel, M. van; Sprinkhuizen-Kuyper, I.G.; Postma, E.O.; Herik, H.J. van den

    2005-01-01

    Reactive agents are generally believed to be incapable of coping with perceptual ambiguity (i.e., identical sensory states that require different responses). However, a recent finding suggests that reactive agents can cope with perceptual ambiguity in a simple model (Nolfi, 2002). This paper

  14. Radiopharmaceutical agents for skeletal scanning

    International Nuclear Information System (INIS)

    Jansen, S.E.; Van Aswegen, A.; Loetter, M.G.; Minnaar, P.C.; Otto, A.C.; Goedhals, L.; Dedekind, P.S.

    1987-01-01

    The quality of bone scan images obtained with a locally produced and with an imported radiopharmaceutical bone agent, methylene diphosphonate (MDP), was compared visually. Standard skeletal imaging was carried out on 10 patients using both agents, with a period of 2 to 7 days between studies with alternate agents. Equal amounts of activity were administered for both agents. All images were acquired on Polaroid film for subsequent evaluation. The acquisition time for standard amount of counts per study was recorded. Three physicians with applicable experience evaluated image quality (on a 4 point scale) and detectability of metastasis (on a 3 point scale). There was no statistically significant difference (p 0,05) between the two agents by paired t-test of Hotelling's T 2 analysis. It is concluded that the imaging properties of the locally produced and the imported MDP are similar

  15. A Verification Logic for GOAL Agents

    Science.gov (United States)

    Hindriks, K. V.

    Although there has been a growing body of literature on verification of agents programs, it has been difficult to design a verification logic for agent programs that fully characterizes such programs and to connect agent programs to agent theory. The challenge is to define an agent programming language that defines a computational framework but also allows for a logical characterization useful for verification. The agent programming language GOAL has been originally designed to connect agent programming to agent theory and we present additional results here that GOAL agents can be fully represented by a logical theory. GOAL agents can thus be said to execute the corresponding logical theory.

  16. Smart Agents and Sentiment in the Heterogeneous Agent Model

    Czech Academy of Sciences Publication Activity Database

    Vácha, Lukáš; Baruník, Jozef; Vošvrda, Miloslav

    2009-01-01

    Roč. 18, č. 3 (2009), s. 209-219 ISSN 1210-0455 R&D Projects: GA MŠk(CZ) LC06075; GA ČR GP402/08/P207; GA ČR(CZ) GA402/09/0965 Institutional research plan: CEZ:AV0Z10750506 Keywords : heterogeneous agent model * market structure * smart traders * Hurst exponent Subject RIV: AH - Economics http://library.utia.cas.cz/separaty/2009/E/vacha- smart agent s and sentiment in the heterogeneous agent model.pdf

  17. Contrast agents for cardiac angiography: effects of a nonionic agent vs. a standard ionic agent

    International Nuclear Information System (INIS)

    Bettmann, M.A.; Bourdillon, P.D.; Barry, W.H.; Brush, K.A.; Levin, D.C.

    1984-01-01

    The effects on cardiac hemodynamics and of a standard contrast agent, sodium methylglucamine diatrizoate [Renografin 76] were compared with the effects of a new nonionic agent (iohexol) in a double-blind study in 51 patietns undergoing coronary angiography and left ventriculography. No significant alteration in measured blood parameters occurred with either contrast agent. Hemodynamic changes occurred with both, but were significantly greater with the standard renografin than with the low-osmolality, nonionic iohexol. After left ventriculography, heart rate increased and peripheral arterial pressure fell with both agents, but less with iohexol. It is concluded that iohexol causes less alteration in cardiac function than does the agent currently most widely used. Nonionic contrast material is likely to improve the safety of coronary angiography, particularly in those patients at greatest risk

  18. Lesões por esforços repetitivos/distúrbios osteomusculares relacionados ao trabalho em cirurgiões-dentistas Work related musculoskeletal disorders in dentists

    Directory of Open Access Journals (Sweden)

    Gilsée Ivan Regis Filho

    2006-09-01

    Full Text Available As patologias denominadas genericamente de Lesões por Esforços Repetitivos (LERs/Distúrbios Osteomusculares Relacionados ao Trabalho (DORTs, apresentando sinais e sintomas de inflamações dos músculos, tendões, fáscias e nervos dos membros superiores, cintura escapular e pescoço, entre outros, têm chamado a atenção não só pelo aumento da sua incidência mas por existirem evidências de sua associação com o ritmo de trabalho. O exercício profissional obriga que cirurgiões-dentistas utilizem na execução das tarefas os membros superiores e estruturas adjacentes, freqüentemente com repetitividade de um mesmo padrão de movimento, compressão mecânica das estruturas localizadas na região, assumindo posturas incorretas, utilizando força excessiva e ainda, na maioria dos casos, trabalhando sob pressão temporal. O presente estudo utilizou o método epidemiológico transversal para buscar evidências da existência da relação entre as tarefas executadas pelo cirurgião-dentista e as LERs/DORTs. Os estudos empíricos revelaram presença de associação estatisticamente significante entre os dois sexos e as patologias. O sexo feminino apresenta mais lesões que o masculino. Ombro/braço (39,40%, punho/mão (18,30% e pescoço (17,20% são as regiões mais afetadas. Finalmente, o presente estudo é mais um indicativo de que as tarefas executadas estão expondo esses profissionais a um risco considerável de adquirir LERs/DORTs.Conditions generally named Cumulative Trauma Disorders (CTD / Work Related Musculoskeletal Disorders (WRMD, that present with signs and symptoms of inflammation in the muscles, tendons, fascia and nerves of the upper limb, shoulder girdle and neck, among others, have been observed not only on account of their incidence but also for their association with work. Dentists are forced to use upper and adjacent structures during their professional activities and frequently perform the same movement pattern, or cause

  19. Factores psicosociales relacionados con la rehospitalización de pacientes con psicosis orgánica Psychosocial factors associated with hospital readmissions of patients with organic psychoses

    Directory of Open Access Journals (Sweden)

    María Teresa Cortés-Padilla

    2001-12-01

    Full Text Available Objetivo. Conocer los factores psicosociales relacionados con la frecuente rehospitalización de pacientes con psicosis orgánica. Material y métodos. Estudio de tipo observacional descriptivo, de corte transversal. La muestra estuvo formada por 33 pacientes del Hospital Psiquiátrico Guillermo Dávila, con Unidad de Medicina Familiar Número 10 del Instituto Mexicano del Seguro Social de la Ciudad de México, con psicosis orgánica y quienes durante los años de 1993-1994 presentaron más de dos rehospitalizaciones. Instrumentos: Entrevista grabada, o muestra de conversación de cinco minutos, para la emoción expresada (EE, cuestionarios mixtos para la Concepción de Enfermedad y la Relación médico-paciente. La validez y confiabilidad de los datos se establecieron con las pruebas de Kappa y Alpha de Cronbach y se efectuó análisis estadístico descriptivo e inferencial. Resultados. El 60.9% de los familiares presentan alto nivel de EE, es decir, expresan crítica, hostilidad o sobreinvolucramiento emocional; el 64.3% de los sujetos de la muestra conviven más de 35 horas a la semana con familiares que presentan Alta EE. Conclusiones. Altos niveles de EE estuvieron asociados con los frecuentes reingresos a hospitalización. Existe mayor conocimiento de las características de la enfermedad por parte del familiar que del paciente. La relación médico-paciente es satisfactoria pero no forma conciencia de enfermedad ni propicia apego al tratamiento terapeútico. El texto completo en inglés de este artículo está disponible en: http://www.insp.mx/salud/index.html Objective. To assess the relationship between psychosocial factors, frequent relapses and hospital readmissions in patients with organic psychoses. Material and Methods. A cross-sectional descriptive study was conducted among 33 patients diagnosed with organic psychosis, seen at Hospital Psiquiatrico Guillermo Dávila, of Instituto Mexicano del Seguro Social in Mexico City. Patients

  20. Aspectos relacionados à fadiga durante o ciclismo: uma abordagem biomecânica Aspects related with fatigue during cycling: a biomechanical approach

    Directory of Open Access Journals (Sweden)

    Fernando Diefenthaeler

    2008-10-01

    Full Text Available A fadiga muscular pode ser definida como a incapacidade funcional na manutenção de um nível esperado de força. As competições de ciclismo, especialmente provas de estrada, apresentam como característica longa duração e altas intensidades. Tais características resultam na instauração do processo de fadiga, que pode estar associado a mecanismos e fatores metabólicos que afetam os músculos (fadiga periférica e o sistema nervoso central (fadiga central. O objetivo deste trabalho é fazer uma revisão sobre aspectos relacionados com as mudanças na técnica de pedalada e na atividade elétrica dos músculos envolvidos nesse movimento durante o processo de fadiga. Alguns desses aspectos têm sido reportados na literatura e podem ter repercussão na (1 magnitude, direção e sentido de aplicação das forças no pedal; no (2 padrão de ativação muscular; na (3 geração de força e, conseqüentemente, no (4 desempenho do ciclista. No entanto, poucos estudos associam a fadiga muscular ao comportamento das forças aplicadas no pedal e ao padrão da ativação muscular. Os resultados dos estudos revisados demonstram a incapacidade dos ciclistas em manter a força desejada, perda da técnica de pedalada e mudança nos padrões de ativação elétrica sob condições de fadiga.Muscular fatigue can be defined as functional inability to maintain a desired force output. During cycling competition, especially road races, cyclists are required to exercise for extended duration at high intensities. These features often result in fatigue, which can be associated with metabolic mechanisms and factors affecting both muscles (peripheral fatigue and the central nervous system (central fatigue. The aim of this study is to review aspects related to alterations in the pedaling technique and electrical activation of the muscles during a fatiguing exercise bout. Some of these alterations have been reported in the literature and can reflect on the (1

  1. LEVANTAMENTO DE AUTOS DE INFRAÇÃO PELO IBAMA/RN RELACIONADOS AOS EMPREENDIMENTOS DE CERÂMICA NO ESTADO DO RIO GRANDE DO NORTE

    Directory of Open Access Journals (Sweden)

    Sângela Ramos de Souza

    2007-12-01

    Full Text Available A produção brasileira de cerâmica continua em seu processo de expansão. O tamanho do mercado nordestino e os custos de transportes associados ao baixo valor agregado dos revestimentos cerâmicos estimularam um movimento de desconcentração regional da produção, uma vez que a implantação de unidades produtivas no Nordeste passou a fazer parte da estratégia competitiva de algumas empresas. O presente trabalho busca mostrar os principais autos de infração relacionados aos empreendimentos de Cerâmica no Estado do Rio Grande do Norte pelo Instituto Brasileiro do Meio Ambiente e dos Recursos Renováveis do RN - IBAMA/RN, órgão ambiental fiscalizador no Estado, no período de 01/01/2002 a 04/10/2005. O levantamento de dados foi realizado através do acesso a Sistemas operados pelo IBAMA/RN, que informou o número de indústrias cadastradas no Rio Grande do Norte, o número de infrações, entre outras. Foram verificadas 140 indústrias cadastradas no Estado, distribuídas em 24 municípios. O alto número de indústrias do setor pode ser decorrente da centralização da atividade como alternativa econômica visto que a região apresenta condições ambientais que prejudicam seu potencial produtivo. O levantamento dos dados revelou que as principais infrações eram receber, armazenar ou transportar produto florestal sem cobertura de ATPF (Autorização de Transporte de Produtos Florestais e funcionar sem prévio registro no IBAMA. A atuação dos órgãos governamentais foi constatada como de fundamental importância para a diminuição do número de autos de infração das indústrias de cerâmica, referente ao período avaliado. A substituição da matriz energética, nas indústrias de cerâmica, de lenha para gás natural é a alternativa ideal no combate à poluição e de outras formas impactantes. Parece haver um direcionamento dos empreendedores, buscando um desenvolvimento sustentável, ainda que seja na intenção de obterem

  2. Identification of related multilingual documents using ant clustering algorithms Identificación de documentos multilingües relacionados mediante algoritmos de clustering de hormigas

    Directory of Open Access Journals (Sweden)

    Ángel Cobo

    2011-12-01

    Full Text Available This paper presents a document representation strategy and a bio-inspired algorithm to cluster multilingual collections of documents in the field of economics and business. The proposed approach allows the user to identify groups of related economics documents written in Spanish and English using techniques inspired on clustering and sorting behaviours observed in some types of ants. In order to obtain a language independent vector representation of each document two multilingual resources are used: an economic glossary and a thesaurus. Each document is represented using four feature vectors: words, proper names, economic terms in the glossary and thesaurus descriptors. The proper name identification, word extraction and lemmatization are performed using specific tools. The tf-idf scheme is used to measure the importance of each feature in the document, and a convex linear combination of angular separations between feature vectors is used as similarity measure of documents. The paper shows experimental results of the application of the proposed algorithm in a Spanish-English corpus of research papers in economics and management areas. The results demonstrate the usefulness and effectiveness of the ant clustering algorithm and the proposed representation scheme.Este artículo presenta una estrategia de representación documental y un algoritmo bioinspirado para realizar procesos de agrupamiento en colecciones multilingües de documentos en las áreas de la economía y la empresa. El enfoque propuesto permite al usuario identificar grupos de documentos económicos relacionados escritos en español o inglés usando técnicas inspiradas en comportamientos de organización y agrupamiento de objetos observados en algunos tipos de hormigas. Para conseguir una representación vectorial de cada documento independiente del idioma, se han utilizado dos recursos lingüísticos: un glosario económico y un tesauro. Cada documento es representado usando

  3. Factores relacionados con el acoso escolar (bullying en los adolescentes de Barcelona Factors related to bullying in adolescents in Barcelona (Spain

    Directory of Open Access Journals (Sweden)

    Xavier Garcia Continente

    2010-04-01

    Full Text Available Objetivos: La violencia y el acoso escolar constituyen un problema social y de salud que ha generado una gran alarma en los últimos años. En este estudio se describe el acoso escolar y los factores relacionados en estudiantes de Barcelona. Métodos: Estudio transversal de una muestra representativa de 2.727 estudiantes de 66 centros escolares de secundaria de Barcelona. Se definió «acoso escolar» como haber sido objeto de burla, golpeado o marginado cuatro o más veces, o al menos una vez en cada uno de los ítems, en los últimos 12 meses. Se realizó un análisis de regresión logística bivariado y multivariado para estudiar la relación entre el acoso y diversos factores, incluyendo variables sociodemográficas, actitudes y comportamientos. Resultados: La prevalencia de acoso escolar fue del 18,2%, 10,9% y 4,3% en chicos, y del 14,4%, 8,5% y 4,5% en chicas de 2º y 4º de educación secundaria obligatoria y 2º de bachillerato o ciclos formativos de grado medio, respectivamente. Los factores que se asociaron con un incremento de la probabilidad de padecer acoso fueron el estado de ánimo negativo y la conducta violenta, mientras que tener mayor edad, el consumo de riesgo de alcohol, el consumo de cannabis e ir a bares y discotecas se asociaron negativamente. Conclusiones: Los resultados confirman la relevancia del problema del acoso escolar en nuestro medio, y señalan diversos factores asociados, como el estado de ánimo negativo y varios comportamientos de riesgo, que deberían ser analizados con detalle en estudios longitudinales para diseñar e implementar programas preventivos apropiados.Objectives: Violence and bullying in the school setting are a serious social and health problem that have created great alarm in the last few years. We aimed to describe bullying and factors related to this phenomenon in students in the city of Barcelona. Methods: We performed a cross-sectional study of a representative sample of 2,727 students

  4. PADRÕES DE LINEAMENTOS RELACIONADOS A LITOESTRUTURA E FRATURAMENTO NEOTECTÔNICO(ESTADO DO ESPÍRITO SANTO, -SE DO BRASIL

    Directory of Open Access Journals (Sweden)

    Luiza Leonardi Bricalli

    2014-03-01

    Full Text Available O presente trabalho tem como objetivo identificar domínios de lineamentos no estado do Espírito Santo (região Sudeste do Brasil, a partir da análise de padrões de orientação e comprimento dos lineamentos e de sua distribuição, como base para investigações sobre o condicionamento morfotectônico e neotectônico da evolução geomorfológica. O estado do Espírito Santo, é geologicamente dividido em dois compartimentos contrastantes: i embasamento pré-cambriano; e ii depósitos sedimentares cenozóicos (Formação Barreiras e sedimentos quaternários. A base metodológica utilizada integrou a análise de domínios de lineamentos (setores do terreno identificáveis por conjuntos com padrões particulares, em escala regional. Mapas de lineamentos foram confeccionados a partir da técnica de extração manual, utilizando ferramentas de edição do ArcGisTM 9.2, sobre um Modelo Digital de Elevação (MDE com diferentes iluminações artificiais. Com base nos mapas de lineamentos elaborados, foi possível identificar dois compartimentos fortemente contrastantes, diretamente relacionados à subdivisão geológica básica do estado do Espírito Santo: i Compartimento do Embasamento Pré-Cambriano, a oeste, onde as direções NE-SW e N-S predominam de forma marcante; e ii Compartimento dos Depósitos Cenozóicos, a leste, onde as direções E-W, NE-SW e NW-SE ocorrem de maneira expressiva. Os padrões de lineamentos identificados podem ser associados a conjuntos de estruturas rúpteis gerados em três regimes tectônicos deformadores distintos: transcorrência sinistral E-W (de idade possivelmente neogênica, transcorrência dextral E-W (pleistocênica a holocênica e distensão NW-SE (holocênica, correlacionáveis a eventos anteriormente descritos no sudeste do Brasil. O fato de os padrões de fraturamento verificados no Compartimento dos Depósitos Cenozóicos apresentarem semelhanças aos encontrados no Compartimento do Embasamento Pr

  5. Incidencia de caídas en un hospital de nivel 1: factores relacionados Incidence of falls in a University Hospital: factors related

    Directory of Open Access Journals (Sweden)

    Juan Manuel Laguna-Parras

    2011-12-01

    Full Text Available Introducción: las caídas son un riesgo real que acontece en el medio hospitalario, y constituyen un indicador de calidad asistencial. La Organización Mundial de la Salud (OMS define el término caída como "la consecuencia de cualquier acontecimiento que precipita al individuo hacia el suelo en contra de su voluntad". Objetivo: analizar la incidencia de caídas, el perfil de los pacientes que sufren caídas en el hospital e identificar las posibles causas y efectos de la misma. Metodología: estudio descriptivo sobre las caídas registradas en el Complejo Hospitalario de Jaén durante la estancia hospitalaria. La obtención de datos se hizo directamente por las supervisoras. Se elaboró una hoja de recogida de datos cuyas anotaciones se transmitieron a una base de datos electrónica. Las variables que se recogieron fueron datos de filiación del paciente, fecha y hora de la caída, unidad donde se produce la caída, puntuación escala Morse, caídas previas, circunstancias de la caída, factores relacionados como medicación, trastornos cognitivos, funcionales, factores del entorno, cuidados tras la caída y necesidad de dispositivos de apoyo. Resultados: durante el periodo analizado se notificaron un total de 36 caídas, lo que representa una incidencia del 0,18%. La mayor frecuencia de caídas se ha producido en las unidades de Salud Mental y Cuidados Paliativos. Conclusiones: el estudio de las diferentes variables del registro nos permite afirmar que la mayoría de las caídas que ocurrían en nuestro hospital se producían en pacientes con una edad media de 63 años, no existen diferencias entre sexos, la mayoría tenían un riesgo bajo de caída según la escala Morse, producidas en el turno de tarde, sin caídas previas y que el lugar donde más caídas se produjeron fué en la habitación.Introduction: falls are a real risk that occurs in hospitals; falls are health a care quality indicator. The World Health Organization (WHO defines

  6. Agents Play Mix-game

    Science.gov (United States)

    Gou, Chengling

    In recent years, economics and finance see the shift of paradigm from representative agent models to heterogeneous agent models [1, 2]. More and more economists and physicists made efforts in research on heterogeneous agent models for financial markets. Minority game (MG) proposed by D. Challet, and Y. C. Zhang [3] is an example among such efforts. Challet and Zhang's MG model, together with the original bar model of Arthur, attracts a lot of following studies [4-6]. Given MG's richness and yet underlying simplicity, MG has also received much attention as a financial market model [4]. MG comprises an odd number of agents choosing repeatedly between the options of buying (1) and selling (0) a quantity of a risky asset. The agents continually try to make the minority decision, i.e. buy assets when the majority of other agents are selling, and sell when the majority of other agents are buying. Neil F. Johnson [4, 5] and coworkers extended MG by allowing a variable number of active traders at each timestep— they called their modified game as the Grand Canonical Minority Game (GCMG). GCMG, and to a lesser extent the basic MG itself, can reproduce the stylized facts of financial markets, such as volatility clustering and fat-tail distributions.

  7. Agent Communications using Distributed Metaobjects

    Energy Technology Data Exchange (ETDEWEB)

    Goldsmith, Steven Y.; Spires, Shannon V.

    1999-06-10

    There are currently two proposed standards for agent communication languages, namely, KQML (Finin, Lobrou, and Mayfield 1994) and the FIPA ACL. Neither standard has yet achieved primacy, and neither has been evaluated extensively in an open environment such as the Internet. It seems prudent therefore to design a general-purpose agent communications facility for new agent architectures that is flexible yet provides an architecture that accepts many different specializations. In this paper we exhibit the salient features of an agent communications architecture based on distributed metaobjects. This architecture captures design commitments at a metaobject level, leaving the base-level design and implementation up to the agent developer. The scope of the metamodel is broad enough to accommodate many different communication protocols, interaction protocols, and knowledge sharing regimes through extensions to the metaobject framework. We conclude that with a powerful distributed object substrate that supports metaobject communications, a general framework can be developed that will effectively enable different approaches to agent communications in the same agent system. We have implemented a KQML-based communications protocol and have several special-purpose interaction protocols under development.

  8. Immunological effects of hypomethylating agents.

    Science.gov (United States)

    Lindblad, Katherine E; Goswami, Meghali; Hourigan, Christopher S; Oetjen, Karolyn A

    2017-08-01

    Epigenetic changes resulting from aberrant methylation patterns are a recurrent observation in hematologic malignancies. Hypomethylating agents have a well-established role in the management of patients with high-risk myelodysplastic syndrome or acute myeloid leukemia. In addition to the direct effects of hypomethylating agents on cancer cells, there are several lines of evidence indicating a role for immune-mediated anti-tumor benefits from hypomethylating therapy. Areas covered: We reviewed the clinical and basic science literature for the effects of hypomethylating agents, including the most commonly utilized therapeutics azacitidine and decitabine, on immune cell subsets. We summarized the effects of hypomethylating agents on the frequency and function of natural killer cells, T cells, and dendritic cells. In particular, we highlight the effects of hypomethylating agents on expression of immune checkpoint inhibitors, leukemia-associated antigens, and endogenous retroviral elements. Expert commentary: In vitro and ex vivo studies indicate mixed effects on the function of natural killer, dendritic cells and T cells following treatment with hypomethylating agents. Clinical correlates of immune function have suggested that hypomethylating agents have immunomodulatory functions with the potential to synergize with immune checkpoint therapy for the treatment of hematologic malignancy, and has become an active area of clinical research.

  9. Creación de un marco de control para la administración del riesgo operativo relacionado con la tecnologias de la información como modelo para las cooperativas de ahorro y crédito del Ecuador

    OpenAIRE

    Brito Domínguez, Jimmy Arturo; Echeverria Briones, Pedro Fabricio

    2009-01-01

    Creación de un marco de control para la administración del riesgo operativo relacionado con la tecnologías de la informacion como modelo para las cooperativas de ahorro y credito del Ecuador Creación de un marco de control para la administración del riesgo operativo relacionado con la tecnologías de la informacion como modelo para las cooperativas de ahorro y credito del Ecuador

  10. Complex responses to alkylating agents

    International Nuclear Information System (INIS)

    Samson, L.D.

    2003-01-01

    Using Affymetrix oligonucleotide GeneChip analysis, we previously found that, upon exposure to the simple alkylating agent methylmethane sulfonate, the transcript levels for about one third of the Saccharomyces cerevisiae genome (∼2,000 transcripts) are induced or repressed during the first hour or two after exposure. In order to determine whether the responsiveness of these genes has any relevance to the protection of cells against alkylating agents we have undertaken several follow-up studies. First, we explored the specificity of this global transcriptional response to MMS by measuring the global response of S. cerevisiae to a broad range of agents that are known to induce DNA damage. We found that each agent produced a very different mRNA transcript profile, even though the exposure doses produced similar levels of toxicity. We also found that the selection of genes that respond to MMS is highly dependent upon what cell cycle phase the cells are in at the time of exposure. Computational clustering analysis of the dataset derived from a large number of exposures identified several promoter motifs that are likely to control some of the regulons that comprise this large set of genes that are responsive to DNA damaging agents. However, it should be noted that these agents damage cellular components other than DNA, and that the responsiveness of each gene need not be in response to DNA damage per se. We have also begun to study the response of other organisms to alkylating agents, and these include E. coli, cultured mouse and human cells, and mice. Finally, we have developed a high throughput phenotypic screening method to interrogate the role of all non-essential S. cerevisiae genes (about 4,800) in protecting S. cerevisiae against the deleterious effects of alkylating agents; we have termed this analysis 'genomic phenotyping'. This study has uncovered a plethora of new pathways that play a role in the recovery of eukaryotic cells after exposure to toxic

  11. Requirements Modeling with Agent Programming

    Science.gov (United States)

    Dasgupta, Aniruddha; Krishna, Aneesh; Ghose, Aditya K.

    Agent-oriented conceptual modeling notations are highly effective in representing requirements from an intentional stance and answering questions such as what goals exist, how key actors depend on each other, and what alternatives must be considered. In this chapter, we review an approach to executing i* models by translating these into set of interacting agents implemented in the CASO language and suggest how we can perform reasoning with requirements modeled (both functional and non-functional) using i* models. In this chapter we particularly incorporate deliberation into the agent design. This allows us to benefit from the complementary representational capabilities of the two frameworks.

  12. Dynamics of Three Agent Games

    OpenAIRE

    Rador, Tonguc; Mungan, Muhittin

    2007-01-01

    We study the dynamics and resulting score distribution of three-agent games where after each competition a single agent wins and scores a point. A single competition is described by a triplet of numbers $p$, $t$ and $q$ denoting the probabilities that the team with the highest, middle or lowest accumulated score wins. We study the full family of solutions in the regime, where the number of agents and competitions is large, which can be regarded as a hydrodynamic limit. Depending on the parame...

  13. Perda de oportunidade de vacinação: aspectos relacionados à atuação da atenção primária em Recife, Pernambuco, 2012

    OpenAIRE

    Barros, Marla Geórgia Monteiro; Santos, Michelle Caroline da Silva; Bertolini, Raphaella Patrícia Torres; Netto, Valderlane Bezerra Pontes; Andrade, Maria Sandra

    2015-01-01

    OBJETIVO: descrever aspectos relacionados à perda de oportunidade de vacinação em unidades básicas de saúde (UBS) no Distrito Sanitário II de Recife-PE, Brasil. MÉTODOS: estudo descritivo, voltado a crianças menores de 1 ano de idade com atraso vacinal em 2012; os dados foram coletados mediante aplicação de formulários estruturados e de entrevista com os pais ou responsáveis. RESULTADOS: foram avaliadas 18 UBS, 33 vacinadores e 300 cadernetas de saúde, das quais 120 (40,0%) apresentaram atr...

  14. Conocimientos, percepciones y comportamientos relacionados con el consumo de sal, la salud y el etiquetado nutricional en Argentina, Costa Rica y Ecuador Knowledge, perceptions, and behavior related to salt consumption, health, and nutritional labeling in Argentina, Costa Rica, and Ecuador

    OpenAIRE

    Germana Sánchez; Lorena Peña; Soledad Varea; Patricia Mogrovejo; María Lorena Goetschel; María de los Ángeles Montero-Campos; Raúl Mejía; Adriana Blanco-Metzler

    2012-01-01

    OBJETIVO: Identificar los conocimientos, percepciones y comportamientos relacionados con el consumo de la sal y el sodio alimentarios y su relación con la salud y el etiquetado nutricional de los alimentos, en tres países de la Región. MÉTODOS: Estudio cualitativo-exploratorio basado en entrevistas semiestructuradas, según las categorías del modelo de creencias en salud. Se realizaron 34 entrevistas y 6 grupos focales con líderes comunales (71 informantes en total) en áreas rurales y urbanas ...

  15. Aislamientos de Staphylococcus aureus sensibles a meticilina relacionados genéticamente con el clon USA300, ¿origen de los aislamientos SARM de genotipo comunitario en Colombia?

    Directory of Open Access Journals (Sweden)

    Javier Antonio Escobar-Pérez

    2014-04-01

    Full Text Available Introducción. USA300 es un linaje genético que se encuentra en aislamientos de Staphylococcus aureus sensibles (SASM y resistentes a meticilina (SARM. Actualmente, en Colombia las infecciones por SARM en hospitales y en la comunidad son causadas principalmente por un clon con genotipo comunitario (SARM-GC relacionado genéticamente con el clon USA300. El origen de esta variante es aún desconocido. Objetivo. Identificar y caracterizar aislamientos de S. aureus resistentes y sensibles a meticilina con el fin de aportar información para establecer un posible origen de los aislamientos SARM-GC en Colombia. Materiales y métodos. Se realizó una caracterización de aislamientos SASM relacionados con el clon USA300 detectados a partir de un análisis de 184 aislamientos de S. aureus (90 SARM y 94 SASM causantes de infecciones. La relación genética de los aislamientos se determinó por electroforesis en gel de campo pulsado (PFGE, tipificación de secuencias multilocus (MLST y tipificación del gen de la proteína A (spa. Resultados. De los 184 aislamientos, 27 (14,7 % presentaron características moleculares y relación genética con el clon USA300, y de ellos, 18 fueron SARM y nueve fueron SASM. Todos los aislamientos SARM relacionados con este clon albergaban un casete estafilocócico cromosómico mec (SCCmec IVc (3.1.2. En ningún aislamiento SASM se detectaron secuencias remanentes de SCCmec o una duplicación del sitio attB que evidenciaran la pérdida del casete. Conclusión. El origen de los aislamientos SARM-GC en Colombia probablemente se encuentre en la diseminación de clones SASM relacionados con el clon USA300 que adquirieron el SCCmec IVc posteriormente.

  16. Factores relacionados con la elección de la opción de titulación en estudiantes de la Facultad de Ciencias de la Salud de la Universidad Nacional Jorge Basadre Grohmann

    OpenAIRE

    Calla Enríquez, Wilber Dante

    2014-01-01

    El objetivo del estudio se centró en determinar los factores relacionados con la elección de la opción de titulación en estudiantes promocionales de la Facultad de las Ciencias de la Salud de la Universidad Nacional Jorge Basadre Grohmann en el año 2014. El diseño fue de un estudio de tipo No experimental Descriptivo – correlacional de corte transversal. La muestra de estudio estuvo constituida por 106 estudiantes de las Escuelas Académico Profesionales de Medicina Humana, Enfermería, Obstetr...

  17. Diagnóstico dos procedimentos relacionados à assistência farmacêutica das farmácias hospitalartes dos hospitais de pequeno e médio porte do sul do estado de Santa Catarina - Brasil

    OpenAIRE

    Rossato, Angela Erna

    2008-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-graduação em Farmácia Os procedimentos relacionados com a Assistência Farmacêutica e a participação do profissional farmacêutico nesse processo foram analisados em 25 Farmácias Hospitalares dos Hospitais do sul do estado de Santa Catarina # Brasil. Os dados foram coletados através de questionário estruturado que foi aplicado in loco na forma de entrevista e, posteriormente, consol...

  18. Plan de mercadeo para la comercialización de cursos relacionados con el marketing digital y software de aplicación empresarial en la ciudad de Guayaquil para la Empresa LINCE.

    OpenAIRE

    Linch Coloma, Luis Enrique

    2014-01-01

    El proyecto de titulación consiste en un plan de mercadeo para comercializar cursos relacionados al marketing digital y manejo de software de aplicación empresarial, el proyecto está enfocado en la ciudad de Guayaquil y como target primario tiene a estudiantes universitarios de los últimos ciclos de las carreras de negocio, también se plantea trabajar un target secundario, para este caso se apunta a jóvenes profesionales de empresas comerciales y a profesionales de ejercicio independien...

  19. Noncontraceptive use of contraceptive agents.

    Science.gov (United States)

    Nickles, Monique Collier; Alderman, Elizabeth

    2014-06-01

    • On the basis of strong research evidence, there are many noncontraceptive advantages to use of hormonal contraceptive agents in adolescent girls. (3) (4)(5)(7)(10)(11)(12)(13)(14). • On the basis of research evidence and consensus, most of these agents are safe with minor adverse effects. (2)(3)(4)(5)(7)(10)(11)(12)(13)(14). • On the basis of research evidence and consensus, through application of evidence-based approaches and proper counseling, pediatricians can use various contraceptive agents to treat several medical conditions and to help alleviate many of the undesired symptoms and complications associated with menstrual periods. (2)(3)(4)(5)(7)(10)(11)(12)(13) (14). • On the basis of research evidence and consensus, these agents may be used in sexually active adolescents to simultaneously help prevent unintended adolescent pregnancies. (2)(3)(4)(5)(7)(10)(11)(12)(13)(14).

  20. Chemical Agents: Facts about Evacuation

    Science.gov (United States)

    ... What CDC is Doing Blog: Public Health Matters Chemical Agents: Facts About Evacuation Format: Select One PDF [ ... on Facebook Tweet Share Compartir Some kinds of chemical accidents or attacks, such as a train derailment ...

  1. Peripheral Neuropathy and Agent Orange

    Science.gov (United States)

    ... Enter ZIP code here Enter ZIP code here Peripheral Neuropathy and Agent Orange VA presumes Veterans' early-onset ... 10 percent disabling by VA's rating regulations. About peripheral neuropathy Peripheral neuropathy is a condition of the peripheral ...

  2. Antisense Treatments for Biothreat Agents

    National Research Council Canada - National Science Library

    Warfield, Kelly L; Panchal, Rekha G; Aman, M J; Bavari, Sina

    2006-01-01

    ... a variety of pathogens in cell culture studies and nonhuman primate models of infection. For these reasons, antisense technologies are being pursued as treatments against biothreat agents such as Ebola virus, dengue virus and Bacillus anthracis...

  3. Câncer de mama e sofrimento psicológico: aspectos relacionados ao feminino El cáncer de mama y el sufrimiento psicológico: aspectos relacionados con el femenino Breast cancer and psychological suffering: female-related aspects

    Directory of Open Access Journals (Sweden)

    Lucia Cecilia da Silva

    2008-06-01

    Full Text Available No Brasil e no mundo a incidência do câncer de mama vem aumentando e aparecendo cada vez mais cedo na vida da mulher. O tratamento envolve mastectomia, quimioterapia e radioterapia, que, pelos seus efeitos físicos, podem comprometer em variados graus a auto-estima, a imagem corporal e a identidade feminina daquelas que recebem o diagnóstico da doença. Além disso, em nossa sociedade o câncer adquiriu significados relacionados a culpa, punição, deterioração, dor e morte, agravando o sofrimento psicológico das doentes. Neste sentido, este artigo tem o objetivo de levantar alguns pontos de reflexão no que se relaciona aos significados culturais da doença e do significado do seio enquanto ícone da identidade feminina. Partimos do princípio de que enriquecer a compreensão dos aspectos que influenciam o sofrimento da mulher com câncer de mama contribui para que os profissionais de saúde, principalmente os de saúde mental, possam assisti-la de maneira mais eficiente e abrangente.En Brasil y en el mundo la incidencia del cáncer de mama está en acenso. Es una enfermedad que está manifestándose cada vez más temprano en la vida de la mujer. El tratamiento envuelve mastectomía, quimioterapia y radioterapia que, por sus efectos físicos, pueden comprometer en variados grados la autoestima, la imagen corporal y la identidad femenina de aquellas mujeres que reciben el diagnóstico de la enfermedad. Además de eso, en nuestra sociedad el cáncer ha adquirido significados relacionados con la culpa, punición, deterioración, dolor y muerte, agravando el sufrimiento psicológico de las enfermas. En este sentido, este artículo tiene como objetivo levantar algunos puntos de reflexión en lo que se relaciona con los significados culturales de la enfermedad y del significado del seno como icono de la identidad femenina. Partimos del supuesto de que enriquecer la comprensión de los aspectos que pueden influenciar el sufrimiento de la mujer

  4. Macroeconomic Policies and Agent Heterogeneity

    OpenAIRE

    GOTTLIEB, Charles

    2012-01-01

    Defence date: 24 February 2012 Examining Board: Giancarlo Corsetti, Arpad Abraham, Juan Carlos Conesa, Jonathan Heathcote. This thesis contributes to the understanding of macroeconomic policies’ impact on the distribution of wealth. It belongs to the strand of literature that departs from the representative agent assumption and perceives agent heterogeneity and the induced disparities in wealth accumulation, as an important dimension of economic policy-making. Within such economic envir...

  5. Agents in E-learning

    Directory of Open Access Journals (Sweden)

    S. Mencke

    2007-12-01

    Full Text Available This paper presents a framework to describe thecrossover domain of e-learning and agent technology.Furthermore it is used to classify existing work and possiblestarting points for the future development of agenttechniques and technologies order to enhance theperformance and the effectiveness of several aspects of elearningsystems. Agents are not a new concept but their usein the field of e-learning constitutes a basis for consequentialadvances.

  6. Building Agents to Serve Customers

    OpenAIRE

    Barbuceanu, Mihai; Fox, Mark S.; Hong, Lei; Lallement, Yannick; Zhang, Zhongdong

    2004-01-01

    AI agents combining natural language interaction, task planning, and business ontologies can help companies provide better-quality and more costeffective customer service. Our customer-service agents use natural language to interact with customers, enabling customers to state their intentions directly instead of searching for the places on the Web site that may address their concern. We use planning methods to search systematically for the solution to the customer's problem, ensuring that a r...

  7. Business Intelligence using Software Agents

    OpenAIRE

    Ana-Ramona BOLOGA; Razvan BOLOGA

    2011-01-01

    This paper presents some ideas about business intelligence today and the importance of developing real time business solutions. The authors make an exploration of links between business intelligence and artificial intelligence and focuses specifically on the implementation of software agents-based systems in business intelligence. There are briefly presented some of the few solutions proposed so far that use software agents properties for the benefit of business intelligence. The authors then...

  8. What makes virtual agents believable?

    Science.gov (United States)

    Bogdanovych, Anton; Trescak, Tomas; Simoff, Simeon

    2016-01-01

    In this paper we investigate the concept of believability and make an attempt to isolate individual characteristics (features) that contribute to making virtual characters believable. As the result of this investigation we have produced a formalisation of believability and based on this formalisation built a computational framework focused on simulation of believable virtual agents that possess the identified features. In order to test whether the identified features are, in fact, responsible for agents being perceived as more believable, we have conducted a user study. In this study we tested user reactions towards the virtual characters that were created for a simulation of aboriginal inhabitants of a particular area of Sydney, Australia in 1770 A.D. The participants of our user study were exposed to short simulated scenes, in which virtual agents performed some behaviour in two different ways (while possessing a certain aspect of believability vs. not possessing it). The results of the study indicate that virtual agents that appear resource bounded, are aware of their environment, own interaction capabilities and their state in the world, agents that can adapt to changes in the environment and exist in correct social context are those that are being perceived as more believable. Further in the paper we discuss these and other believability features and provide a quantitative analysis of the level of contribution for each such feature to the overall perceived believability of a virtual agent.

  9. Interactions of ionic and nonionic contrast agents with thrombolytic agents

    International Nuclear Information System (INIS)

    Fareed, J.; Moncada, R.; Scanlon, P.; Hoppensteadt, D.; Huan, X.; Walenga, J.M.

    1987-01-01

    Both the ionic and nonionic intravascular contrast media have been used before and after the administration of thrombolytic agents to evaluate clot lysis during angioplasty and the treatment of myocardial infarction. In experimental animal models, the authors found that the clot lytic efficacy of streptokinase, streptokinase-plasminogen complex, and tissue plasminogen activator (t-PA) is markedly augmented if these agents are administered within 1 hour after the angiographic producers. Furthermore, contrast agents injected after the administration of t-Pa exhibit a synergistic action. In stimulated models administration of one ionic contrast medium (Angiovist, Berlex, Wayne, NJ) and two nonionic contrast agents (Isovue-370, Squibb Diagnostics, New Brunswick, NJ; Omnipaque-350, Winthrop, NY) 15 minutes before the administration of t-PA resulted in marked enhancement of the lytic activity. Although the mechanism of this interaction is unknown at this time, it should be taken into consideration in the treatment of patients with myocardial infarction, in whom contrast agents are continually used to evaluate the therapeutic lysis. Furthermore, this interaction may be partly related to the therapeutic efficacy and/or hemorrhagic actions observed

  10. Factores relacionados con enfermedades transmitidas por alimentos en restaurantes de cinco ciudades de Colombia, 2007 Factors related to foodborne diseases in restaurants from 5 Colombian cities, 2007

    Directory of Open Access Journals (Sweden)

    Astrid Carolina Flórez

    2008-12-01

    Full Text Available Antecedentes. En Colombia existe subregistro de la notificación de casos de enfermedades transmitas por alimentos. de la Salud plantea que la mayoría de las contaminaciones de alimentos que generan enfermedades transmitidas por alimentos ocurren por problemas sanitarios y de manipulación, dentro del hogar y en sitios en donde se elaboran para la venta. Objetivo. Identificar los factores relacionados con la transmisión de enfermedades transmitidas por alimentos en expendios de alimentos. Materiales y métodos. En cinco ciudades de Colombia se encuestaron 300 establecimientos y 1.522 manipuladores de alimentos a quienes se les hizo control microbiológico de manos y, a 1.286, examen coprológico y coprocultivo. Resultados. Veinticinco establecimientos (8,3% no tenían una ubicación adecuada, 113 (37,7% no contaban con planes de saneamiento y sólo 26 (8,7% realizaban prácticas apropiadas de almacenamiento. En los manipuladores se halló que 765 (50,3% ingresaron con examen médico y 924 (60,7% realizaron curso de manipulación de alimentos. En sus prácticas de trabajo se evidenció manejo simultáneo de dinero y alimentos (17%, uso de joyas (15,2%, uñas largas y con esmalte (8,9%, y 15,2% refirieron no lavarse las manos cuando manipulaban dinero y en los no capacitados se halló 1,3 veces más frecuente este hábito (RR=1,36 IC 95%=1,10 - 1,69. Se encontraron parásitos intestinales en 26,9%; 49 (3,8% fueron positivos para parásitos patógenos, 6 (0,46% para enterobacterias patógenas y 8 (0,52% cultivos de manos, para Staphylococcus aureus. Conclusión. Se evidenció incumplimiento de las buenas prácticas de manufactura, prácticas inadecuadas y malos hábitos higiénicos en manipuladores de alimentos, factores influyentes en la aparición de brotes de enfermedades transmitidas por alimentos.Background: In Colombia, there is an underreporting of cases of foodborne diseases. The World Health Organization suggests that contamination of

  11. Prevalência de eczema atópico e sintomas relacionados entre estudantes Prevalence of atopic eczema and associated symptoms in school children

    Directory of Open Access Journals (Sweden)

    Inês C Camelo-Nunes

    2004-02-01

    Full Text Available OBJETIVO: Determinar a prevalência de eczema atópico e de sintomas relacionados entre estudantes da região centro-sul da cidade de São Paulo, em 1996 e 1999. MÉTODOS: Em 1996 e 1999, o questionário escrito do International Study of Asthma and Allergies in Childhood (ISAAC foi aplicado aos pais de crianças com 6-7 anos (3.005 em 1996 e 3.033 em 1999 e a adolescentes de 13-14 anos (3.008 em 1996 e 3.487 em 1999. Para o ISAAC: a o relato de eczema alguma vez indica que, pelo menos uma vez na vida, foi fornecido por um médico o diagnóstico de eczema atópico, sendo utilizado para definir "diagnóstico médico" b o relato concomitante de lesões no último ano evidenciadas em locais característicos constitui o "critério combinado" para o diagnóstico de eczema atópico e foi, também, utilizado por nós. Os dados obtidos foram transcritos no banco de dados Epi-Info 6.0 e analisados. RESULTADOS: No grupo dos 6-7 anos houve redução significante do "diagnóstico médico" de eczema atópico em 1999 (11,4% em comparação a 1996 (13,2%. O aumento da prevalência de "diagnóstico médico" observado em 1999, entre os adolescentes, não foi significante (14% x 15%. Considerando-se o "critério combinado", não houve diferenças significantes, entre 1996 e 1999, em ambos os grupos (6,6% x 6,8% para crianças de 6-7 anos e 3,7% x 4,4% para adolescentes. CONCLUSÕES: Apesar do aumento da prevalência das doenças atópicas em várias partes do mundo, documentamos redução na prevalência de "diagnóstico médico" de eczema atópico entre crianças de 6 a 7 anos. Contudo, o eczema atópico é doença relevante na população pediátrica.OBJECTIVE: To determine the prevalence of atopic dermatitis and associated symptoms in schoolchildren from the city of São Paulo in 1996 and 1999. METHODS: The International Study of Asthma and Allergies in Childhood (ISAAC written questionnaire was applied to the parents of 6 to 7-year-old children in 1996 and

  12. Smart Agents and Sentiment in the Heterogeneous Agent Model

    Czech Academy of Sciences Publication Activity Database

    Vácha, Lukáš; Baruník, Jozef; Vošvrda, Miloslav

    -, č. 81 (2010), s. 39-40 ISSN 0926-4981 R&D Projects: GA ČR(CZ) GA402/09/0965; GA ČR GP402/08/P207 Grant - others:GAUK(CZ) GAUK 46108 Institutional research plan: CEZ:AV0Z10750506 Keywords : Smart traders * price movements * smart traders concept Subject RIV: AH - Economics http://library.utia.cas.cz/separaty/2010/E/vacha- smart agent s and sentiment in the heterogeneous agent model.pdf

  13. Homeostatic Agent for General Environment

    Science.gov (United States)

    Yoshida, Naoto

    2018-03-01

    One of the essential aspect in biological agents is dynamic stability. This aspect, called homeostasis, is widely discussed in ethology, neuroscience and during the early stages of artificial intelligence. Ashby's homeostats are general-purpose learning machines for stabilizing essential variables of the agent in the face of general environments. However, despite their generality, the original homeostats couldn't be scaled because they searched their parameters randomly. In this paper, first we re-define the objective of homeostats as the maximization of a multi-step survival probability from the view point of sequential decision theory and probabilistic theory. Then we show that this optimization problem can be treated by using reinforcement learning algorithms with special agent architectures and theoretically-derived intrinsic reward functions. Finally we empirically demonstrate that agents with our architecture automatically learn to survive in a given environment, including environments with visual stimuli. Our survival agents can learn to eat food, avoid poison and stabilize essential variables through theoretically-derived single intrinsic reward formulations.

  14. Multi-Agent Software Engineering

    International Nuclear Information System (INIS)

    Mohamed, A.H.

    2014-01-01

    This paper proposed an alarm-monitoring system for people based on multi-agent using maps. The system monitors the users physical context using their mobile phone. The agents on the mobile phones are responsible for collecting, processing and sending data to the server. They can determine the parameters of their environment by sensors. The data are processed and sent to the server. On the other side, a set of agents on server can store this data and check the preconditions of the restrictions associated with the user, in order to trigger the appropriate alarms. These alarms are sent not only to the user who is alarmed to avoid the appeared restriction, but also to his supervisor. The proposed system is a general purpose alarm system that can be used in different critical application areas. It has been applied for monitoring the workers of radiation sites. However, these workers can do their activity tasks in the radiation environments safely

  15. Agent review phase one report.

    Energy Technology Data Exchange (ETDEWEB)

    Zubelewicz, Alex Tadeusz; Davis, Christopher Edward; Bauer, Travis LaDell

    2009-12-01

    This report summarizes the findings for phase one of the agent review and discusses the review methods and results. The phase one review identified a short list of agent systems that would prove most useful in the service architecture of an information management, analysis, and retrieval system. Reviewers evaluated open-source and commercial multi-agent systems and scored them based upon viability, uniqueness, ease of development, ease of deployment, and ease of integration with other products. Based on these criteria, reviewers identified the ten most appropriate systems. The report also mentions several systems that reviewers deemed noteworthy for the ideas they implement, even if those systems are not the best choices for information management purposes.

  16. Monitoring presence of chemical agents

    International Nuclear Information System (INIS)

    Preston, J.M.

    1984-01-01

    The specification describes a case for use with a hand-portable chemical agent detector for continuously monitoring an atmosphere for the presence of predetermined chemical agents. The detector having means for ionizing air samples and providing at an output terminal electrical signals representative of the mobility spectrum of ionized chemical vapours produced by the ionizing means. The case comprises means for defining a chamber in the case for supporting and removably enclosing the detector, means for communicating ambient atmosphere to the chamber, electrical circuit means in the case, the circuit means being adapted to be detachably connected to the detector output terminal when the detector is positioned in the chamber and being responsive to the electrical signals for producing an alarm signal when the signals detect a chemical agent concentration in the atmosphere exceeding a predetermined concentration level, and alarm means responsive to the alarm signal. (author)

  17. Alkylating agents for Waldenstrom's macroglobulinaemia.

    Science.gov (United States)

    Yang, Kun; Tan, Jianlong; Wu, Taixiang

    2009-01-21

    Waldenstrom's macroglobulinaemia (WM) is an uncommon B-cell lymphoproliferative disorder characterized by bone marrow infiltration and production of monoclonal immunoglobulin. Uncertainty remains if alkylating agents, such as chlorambucil, melphalan or cyclophosphamide, are an effective form of management. To assess the effects and safety of the alkylating agents on Waldenstrom's macroglobulinaemia (WM). We searched the Cochrane Central Register of Controlled Trials (Issue 1, 2008), MEDLINE (1966 to 2008), EMBASE (1980 to 2008), the Chinese Biomedical Base (1982 to 2008) and reference lists of articles.We also handsearched relevant conference proceedings from 1990 to 2008. Randomised controlled trials (RCTs) comparing alkylating agents given concomitantly with radiotherapy, splenectomy, plasmapheresis, stem-cell transplantation in patients with a confirmed diagnosis of WM. Two authors independently assessed trial quality and extracted data. We contacted study authors for additional information. We collected adverse effects information from the trials. One trial involving 92 participants with pretreated/relapsed WM compared the effect of fludarabine versus the combination of cyclophosphamide (the alkylating agent), doxorubicin and prednisone (CAP). Compared to CAP, the Hazard ratio (HR) for deaths of treatment with fludarabine was estimated to be 1.04, with a standard error of 0.30 (95% CI 0.58 to 1.48) and it indicated that the mean difference of median survival time was -4.00 months, and 16.00 months for response duration. The relative risks (RR) of response rate was 2.80 (95% CI 1.10 to 7.12). There were no statistically difference in overall survival rate and median survival months, while on the basis of response rate and response duration, fludarabine seemed to be superior to CAP for pretreated/relapsed patients with macroglobulinaemia. Although alkylating agents have been used for decades they have never actually been tested in a proper randomised trial. This

  18. Autonomous sensor manager agents (ASMA)

    Science.gov (United States)

    Osadciw, Lisa A.

    2004-04-01

    Autonomous sensor manager agents are presented as an algorithm to perform sensor management within a multisensor fusion network. The design of the hybrid ant system/particle swarm agents is described in detail with some insight into their performance. Although the algorithm is designed for the general sensor management problem, a simulation example involving 2 radar systems is presented. Algorithmic parameters are determined by the size of the region covered by the sensor network, the number of sensors, and the number of parameters to be selected. With straight forward modifications, this algorithm can be adapted for most sensor management problems.

  19. Imprecise Beliefs in a Principal Agent Model

    NARCIS (Netherlands)

    Rigotti, L.

    1998-01-01

    This paper presents a principal-agent model where the agent has multiple, or imprecise, beliefs. We model this situation formally by assuming the agent's preferences are incomplete. One can interpret this multiplicity as an agent's limited knowledge of the surrounding environment. In this setting,

  20. 2APL: a practical agent programming language

    NARCIS (Netherlands)

    Dastani, M.M.

    2008-01-01

    This article presents a BDI-based agent-oriented programming language, called 2APL (A Practical Agent Programming Language). This programming language facilitates the implementation ofmulti-agent systems consisting of individual agents thatmay share and access external environments. It realizes

  1. Clustering recommendations to compute agent reputation

    Science.gov (United States)

    Bedi, Punam; Kaur, Harmeet

    2005-03-01

    Traditional centralized approaches to security are difficult to apply to multi-agent systems which are used nowadays in e-commerce applications. Developing a notion of trust that is based on the reputation of an agent can provide a softer notion of security that is sufficient for many multi-agent applications. Our paper proposes a mechanism for computing reputation of the trustee agent for use by the trustier agent. The trustier agent computes the reputation based on its own experience as well as the experience the peer agents have with the trustee agents. The trustier agents intentionally interact with the peer agents to get their experience information in the form of recommendations. We have also considered the case of unintentional encounters between the referee agents and the trustee agent, which can be directly between them or indirectly through a set of interacting agents. The clustering is done to filter off the noise in the recommendations in the form of outliers. The trustier agent clusters the recommendations received from referee agents on the basis of the distances between recommendations using the hierarchical agglomerative method. The dendogram hence obtained is cut at the required similarity level which restricts the maximum distance between any two recommendations within a cluster. The cluster with maximum number of elements denotes the views of the majority of recommenders. The center of this cluster represents the reputation of the trustee agent which can be computed using c-means algorithm.

  2. Estágios de mudança de comportamento relacionados à atividade física em adolescentes Estadios de cambio de comportamiento relacionados a la actividad física en adolescentes Behavior change stages related to physical activity in adolescents

    Directory of Open Access Journals (Sweden)

    Gustavo de Sá e Souza

    2005-04-01

    Full Text Available Estudos relacionados ao comportamento quanto à prática de atividades físicas vêm despertando interesse cada vez maior nos pesquisadores. Porém, especialmente em adolescentes ainda percebe-se grande carência de investigações com esse enfoque. O objetivo desta pesquisa do tipo descritivo analítico foi classificar a prática de atividade física segundo a teoria dos estágios de mudança de comportamento (EMC de acordo com o sexo, série e nível socioeconômico. Os sujeitos foram adolescentes do ensino médio, da cidade do Recife-PE, com média de idade de 16,2 ± 1,1 (14 a 19 anos, selecionados por amostragem por conglomerados, totalizando 2.271 estudantes (1.022 rapazes e 1.249 moças, de 29 escolas de ensino privado. Características sociodemográficas e EMC foram levantados mediante aplicação de um questionário de auto-relato. As análises dos dados foram feitas usando a estatística descritiva, o teste do qui-quadrado, a correlação de Spearman e o teste U de Mann-Whitney (p Estudios relacionados al comportamiento en relación a la práctica de actividades físicas vienen despertando un interés cada vez mayor en los investigadores. Por ello, especialmente en adolescentes aún se percibe una gran carencia de investigaciones con ese enfoque. El objetivo de esta investigación, de tipo descriptivo analítico fue el de clasificar la práctica de actividad física según los Estadios de Cambios de Comportamiento (EMC de acuerdo con el sexo, años de estudio y nivel socioeconomico. Los sujetos fueron adolescentes de enseñanza media de la ciudad de Recife-PE, con una media de edad de 16,2 ± 1,1 (14 a 19 años, seleccionados por amuestras en conglomerados, totalizando 2.271 estudiantes (1.022 jóvenes y 1.249 chicas, de 29 escuelas de enseñanza privada. Características socio-demográficas y los EMC fueron levantados mediante la aplicación de un cuestionario de auto relato. Los análisis de los datos fueron hechas usando la estad

  3. Comunicação prejudicada: fatores relacionados e características definidoras em pacientes internados com queimaduras Comunicación alterada, factores relacionados y características que la definen, en pacientes internados con quemaduras Impaired communication, related factors and defining characteristics in burned patients

    Directory of Open Access Journals (Sweden)

    Adriana Silva Meneguello

    1996-04-01

    Full Text Available O presente estudo aborda as questões do paciente portador de queimaduras e suas influências no processo comunicacional. Busca contribuir com a preocupação recente da Enfermagem na criação de instrumentos de identificação de problemas de comunicação, a formulação de diagnósticos de enfermagem que envolve tais alterações, bem como, a elaboração de propostas alternativas para o cuidado a pacientes de comunicação prejudicada. A partir do conhecimento dos resultados de DALRI (1993, que encontrou 03 pacientes com diagnóstico de comunicação prejudicada, utilizando a Taxonomia I da North American Nursing Diagnosis Association (NANDA, realizamos uma análise secundária dos dados tomando como subsídio a proposta de CARVALHO & COLER (1994. Nesta amostra, encontramos 14 pacientes com esta alternação (Comunicação Prejudicada, confirmando a hipótese de que a segunda proposta para o diagnóstico de enfermagem de Comunicação Prejudicada se apresenta mais abrangente. Os fatores relacionados mais freqüentes foram: condições físicas - alteração anatômica (aparelho visual e fonador; stress e percepção alterada. As características definidoras mais comuns foram: expressões de ansiedade/depressão; déficit visual parcial ou total e dispnéia.El presente estudio aborda las cuestiones del paciente portador de quemaduras y sus influencias en el proceso de comunicación. Busca contribuir con la preocupación reciente de la Enfermería con la creación de instrumentos de identificación de problemas de comunicación, la formulación de diagnósticos de enfermería que envuelven estas alteraciones y también, la elaboración de propuestas alternativas para el cuidado de pacientes con comunicación alterada. A partir del conocimiento de los resultados de DALRI (1993, quien encontró 03 pacientes con diagnósticos de comunicación alterada, utilizando la Taxonomía I de la North American Nursing Diagnosis Association (NANDA 1990 ano

  4. Fatores relacionados ao diagnóstico de enfermagem autocontrole ineficaz da saúde entre diabéticos Factores relacionados al diagnóstico de enfermería autocontrol ineficaz de la salud entre diabéticos Factors related to nursing diagnosis, ineffective self-health management, among diabetics

    Directory of Open Access Journals (Sweden)

    Roberto Wagner Júnior Freire de Freitas

    2011-01-01

    Full Text Available OBJETIVO: Investigar os fatores relacionados ao diagnóstico de enfermagem autocontrole ineficaz da saúde em usuários, de serviço de atenção básica à saúde, com Diabetes mellitus tipo 2, tratados com antidiabéticos orais (AO, segundo o sexo. MÉTODOS: Estudo de análise secundária de um banco de dados de pesquisa realizada, entre janeiro e julho de 2009, nos domicílios de 377 usuários de 12 centros de saúde da família de Fortaleza-CE. Para determinar a presença do diagnóstico de enfermagem foi realizada uma analogia entre as questões do teste Medida de Adesão ao Tratamento e quatro das cinco características definidoras do diagnóstico pesquisado. RESULTADOS: Os homens tinham um sentimento de impotência maior (30,4% que as mulheres (18,4% acerca da tomada dos AO (p=0,034. As mulheres conseguiram perceber melhor os benefícios da tomada correta dos AO no controle do Diabetes (p=0,002. CONCLUSÃO: Fatores de caráter socioeconômico importantes no controle da doença como a demanda excessiva e deficit de apoio social foram predominantes e significativos entre os homens.OBJETIVO: Investigar los factores relacionados al diagnóstico de enfermería autocontrol ineficaz de la salud en usuarios, del servicio de atención básica a la salud, con Diabetes mellitus tipo 2, tratados con antidiabéticos orales (AO, según el sexo. MÉTODOS: Estudio de análisis secundario de un banco de datos de investigación realizada, entre enero y julio del 2009, en los domicilios de 377 usuarios de 12 centros de salud de la familia de Fortaleza-CE. Para determinar la presencia del diagnóstico de enfermería fue realizada una analogía entre las preguntas del test Medida de Adhesión al Tratamiento y cuatro de las cinco características definidoras del diagnóstico investigado. RESULTADOS: los hombres tenían un sentimiento de impotencia mayor (30,4% que el de las mujeres (18,4% respecto a la toma de los AO (p=0,034. Las mujeres consiguieron percibir

  5. Fundamental studies of oral contrast agents for MR. Comparison of manganese agent and iron agent

    International Nuclear Information System (INIS)

    Fujita, Osamu; Hiraishi, Kumiko; Suginobu, Yoshito; Takeuchi, Masayasu; Narabayashi, Isamu

    1996-01-01

    We investigated and compared signal intensity and the effect of imaging the upper abdomen with blueberry juice (B.J.), a Mn agent utilizing the properties of paramagnetic metals, and FerriSeltz (F.S.), an iron agent. Since the relaxation effect was much stronger with B.J. than with F.S., the signal intensity required of a peroral contrast agent was able to be obtained at a much lower concentration of B.J. In imaging the upper abdomen, B.J. had a positive effect on imaging in T1-weighted images, and a negative effect in T2-weighted images. F.S. had a positive imaging effect in both, and because it showed extremely high signals in T2-weighted images, motion artifact arose. (author)

  6. Raspberry Pi for secret agents

    CERN Document Server

    Sjogelid, Stefan

    2015-01-01

    This book is an easy-to-follow guide with practical examples in each chapter. Suitable for the novice and expert alike, each topic provides a fast and easy way to get started with exciting applications and also guides you through setting up the Raspberry Pi as a secret agent toolbox.

  7. Real Estate Agent Commission Disputes

    Directory of Open Access Journals (Sweden)

    Anida Duarte

    2015-06-01

    Full Text Available The purpose of this study was to examine the relationship among Procuring Cause Law, real estate agent years of experience, and real estate commission disputes. A pilot survey was conducted in the southwestern United States among real estate agents, realtor(s, and brokers. After testing the hypothesis, the decision was made to fail to reject the hypothesis and conclude that real estate agent experience and not Procuring Cause Law produced favorable outcomes in disputes. As a result, the following recommendations were made: (a Agency seller and buyer’s agreements should be used in each transaction to avoid disputes, (b proper expectations and guidelines should be reviewed prior to starting any real estate transaction, (c a checklist may assist in the assurance that all valuable information is reviewed, (d agents could benefit from fully understanding Procuring Cause Law and sharing this information with their clients, (e state and national regulatory requirements of the law could be modified for easier understanding and use, and (f consumers who willfully violate the law could be subject to monetary penalties.

  8. Ultrasound Contrast Agent Microbubble Dynamics

    NARCIS (Netherlands)

    Overvelde, M.L.J.; Vos, Henk; de Jong, N.; Versluis, Michel; Paradossi, Gaio; Pellegretti, Paolo; Trucco, Andrea

    2010-01-01

    Ultrasound contrast agents are traditionally used in ultrasound-assisted organ perfusion imaging. Recently the use of coated microbubbles has been proposed for molecular imaging applications where the bubbles are covered with a layer of targeting ligands to bind specifically to their target cells.

  9. Travel Agent. Occupational Simulation Kit.

    Science.gov (United States)

    Peterson, Wayne

    This career exploration instructional booklet on the travel agent's occupation is one of several resulting from the rural southwestern Colorado CEPAC Project (Career Education Process of Attitude Change). Based on a job analysis and utilizing a programed instructional format, the following content is included: A brief description of what a travel…

  10. Why Do Extension Agents Resign?

    Science.gov (United States)

    Manton, Linda Nunes; van Es, J. C.

    1985-01-01

    Past and current Illinois extension agents were surveyed via mail questionnaires as to reasons for staying or leaving extension programs. Reasons for leaving included family changes, family moves, opportunity to advance, better salary/benefits, dissatisfaction with administration, and too much time away from family. (CT)

  11. The Power Trading Agent Competition

    NARCIS (Netherlands)

    Ketter, W.; Collins, J.; Reddy, P.; Flath, C.; De Weerdt, M.M.

    2011-01-01

    This is the specification for the Power Trading Agent Competition for 2012 (Power TAC 2012). Power TAC is a competitive simulation that models a “liberalized” retail electrical energy market, where competing business entities or “brokers” offer energy services to customers through tariff contracts,

  12. The Power Trading Agent Competition

    NARCIS (Netherlands)

    W. Ketter (Wolfgang); J. Collins (John); P. Reddy (Prashant); C. Flath (Christoph); M.M. de Weerdt (Mathijs)

    2011-01-01

    textabstractThis is the specification for the Power Trading Agent Competition for 2012 (Power TAC 2012). Power TAC is a competitive simulation that models a “liberalized” retail electrical energy market, where competing business entities or “brokers” offer energy services to customers through tariff

  13. Design of Collaborative Information Agents

    NARCIS (Netherlands)

    Jonker, C.M.; Klusch, M.; Treur, J.; Klusch, M.; Kerschberg, L.

    2000-01-01

    Effective development of nontrivial systems of collaborative information agents requires that an in-depth analysis is made resulting in (1) specification of requirements at different levels of the system, (2) specification of design structures, and (3) a systematic verification. To support a

  14. FACT : forgiving agent comfort technology

    NARCIS (Netherlands)

    Zeiler, W.; Wortel, W.; Kamphuis, I.G.; Akkermans, Hans; Jelsma, J.; Bakker, L.

    2005-01-01

    To further reduce energy consumption of office buildings, a new control technology is needed in which the end-user behaviour is integrated. Improvement of the energy consumption is offered by agent-based systems for energy management in buildings, as well as possibilities for enhancing the comfort

  15. Tc-99m imaging agents

    International Nuclear Information System (INIS)

    Weininger, J.; Trumper, J.

    1984-01-01

    A wide range of pharmaceuticals for labeling with Tc-99m, developed by the Soreq Radiopharmaceuticals Department, is described. Details of the production and quality control of 13 kits are given, as well as the range of results required for consistently high quality imaging agents

  16. Kriitikute lemmikfilm on "Agent Sinikael"

    Index Scriptorium Estoniae

    2003-01-01

    Eesti Filmiajakirjanike Ühing andis kümnendat korda välja auhinda Aasta film 2002. Parimaks filmiks tunnistati mängufilm "Agent Sinikael" : režissöör Marko Raat. Viimane sai preemiaks Neitsi Maali kuju ja 12 000 krooni

  17. SEM: A Cultural Change Agent

    Science.gov (United States)

    Barnes, Bradley; Bourke, Brian

    2015-01-01

    The authors advance the concept that institutional culture is a purposeful framework by which to view SEM's utility, particularly as a cultural change agent. Through the connection of seemingly independent functions of performance and behavior, implications emerge that deepen the understanding of the influence of culture on performance outcomes…

  18. Agent Supported Serious Game Environment

    Science.gov (United States)

    Terzidou, Theodouli; Tsiatsos, Thrasyvoulos; Miliou, Christina; Sourvinou, Athanasia

    2016-01-01

    This study proposes and applies a novel concept for an AI enhanced serious game collaborative environment as a supplementary learning tool in tertiary education. It is based on previous research that investigated pedagogical agents for a serious game in the OpenSim environment. The proposed AI features to support the serious game are the…

  19. Sophisticated Players and Sophisticated Agents

    NARCIS (Netherlands)

    Rustichini, A.

    1998-01-01

    A sophisticated player is an individual who takes the action of the opponents, in a strategic situation, as determined by decision of rational opponents, and acts accordingly. A sophisticated agent is rational in the choice of his action, but ignores the fact that he is part of a strategic

  20. Humor and Embodied Conversational Agents

    NARCIS (Netherlands)

    Nijholt, Antinus

    This report surveys the role of humor in human-to-human interaction and the possible role of humor in human-computer interaction. The aim is to see whether it is useful for embodied conversational agents to integrate humor capabilities in their internal model of intelligence, emotions and

  1. Bridging humans via agent networks

    International Nuclear Information System (INIS)

    Ishida, Toru

    1994-01-01

    Recent drastic advance in telecommunication networks enabled the human organization of new class, teleorganization, which differ from any existing organization in that the organization which is easy to create by using telecommunication networks is virtual and remote, that people can join multiple organizations simultaneously, and that the organization can involve people who may not know each other. In order to enjoy the recent advance in telecommunication, the agent networks to help people organize themselves are needed. In this paper, an architecture of agent networks, in which each agent learns the preference or the utility functioin of the owner, and acts on behalf of the owner in maintaining the organization, is proposed. When an agent networks supports a human organization, the conventional human interface is divided into personal and social interfaces. The functionalities of the social interface in teleconferencing and telelearning were investigated. In both cases, the existence of B-ISDN is assumed, and the extension to the business meeting scheduling using personal handy phone (PHS) networks with personal digital assistant (PDA) terminals is expected. These circumstances are described. Mutual selection protocols (MSP) and their dynamic properties are explained. (K.I.)

  2. Evolución de la mortalidad y de los años de vida perdidos prematuramente relacionados con el consumo de alcohol en las Islas Canarias (1980-1998

    Directory of Open Access Journals (Sweden)

    Bello L.M.

    2003-01-01

    Full Text Available Objetivo: Describir la mortalidad y los años de vida perdidos prematuramente (AVPP relacionados con el alcohol en las Islas Canarias durante el período 1980-1998. Métodos: Las defunciones por edad, sexo y causa desde 1980 a 1998 se obtuvieron del Instituto Nacional de Estadística (Movimiento Natural de la Población. Se calculó la proporción de muertes relacionadas con el alcohol para cada año, sexo y grupo de edad a partir de la fracción atribuible poblacional propuesta por los Centers for Disease Control (Estados Unidos. Para cada categoría diagnóstica, los años de vida perdidos prematuramente relacionados con el alcohol fueron calculados multiplicando las defunciones por la fracción poblacional en grupos quinquenales de edad para ambos sexos hasta la edad de 65 años. Resultados: Durante el período 1980-1998, el número de fallecimientos por causas relacionadas con el alcohol fue de 12.614, con un promedio del 6,4% anual y una razón varón/mujer de aproximadamente 2:1. Las neoplasias malignas, las enfermedades digestivas y los accidentes no intencionales relacionados con el alcohol presentan las mayores tasas de mortalidad y de AVPP tanto en varones como en mujeres; en particular, los accidentes no intencionales generan AVPP por encima de las otras causas, lo que supone el 50,6% del total de AVPP por causas relacionadas con el alcohol en varones y el 55,5% en mujeres. Durante el período de estudio, la cirrosis hepáticas y otras enfermedades crónicas del hígado (CIE 571 van decreciendo paulatinamente en los varones y se mantienen en las mujeres. Conclusiones: En el ámbito y período de estudio (Islas Canarias, 1980-1998, se ha observado que el porcentaje de fallecidos por causas relacionadas con el alcohol es elevado, incluyendo la mortalidad por cirrosis hepática. Por tanto, sería necesario potenciar el desarrollo de estrategias educativas y otras dirigidas para controlar su consumo, sobre todo en los jóvenes.

  3. Gender and alcohol consumption and alcohol-related problems in Latin America and the Caribbean Género, consumo de alcohol y problemas relacionados con el alcohol en América Latina y el Caribe

    Directory of Open Access Journals (Sweden)

    2002-07-01

    Full Text Available Durante la última década ha aumentado la preocupación por el consumo de alcohol como problema de salud pública. El consumo de alcohol es especialmente problemático en América Latina y el Caribe (ALC. Mientras que en todo el mundo la proporción de muertes atribuibles al alcohol es del 1,5%, en los países de ALC esta cifra es del 4,5%. Los esfuerzos para reducir los efectos negativos del alcohol sobre la sociedad y la salud pública necesitan tener en cuenta el contexto sociocultural en el que tiene lugar el consumo, y en particular los roles de género. Este tema ha sido tratado en un documento de trabajo publicado recientemente por el Banco Mundial, cuyo contenido se resume aquí. Dicho documento afirma que el consumo y el abuso de alcohol están relacionados con los roles de los hombres y las mujeres y sus expectativas en la sociedad. Los hombres tienen mayores probabilidades que la mujeres de beber mucho, y también menos probabilidades de abstenerse de consumir alcohol. Además, hay diferentes expectativas y significados del consumo de alcohol de unos y otras y de la forma como responden a él. Las políticas sobre el alcohol adoptadas por los gobiernos deberían basarse en la eficacia y en los costos de su puesta en práctica. Estas políticas pueden clasificarse en función de cuatro grandes objetivos: 1 prevenir el consumo y los comportamientos de alto riesgo relacionados con él; 2 reducir los daños a los consumidores individuales y a sus familias y comunidades; 3 regular la disponibilidad del alcohol y las condiciones de su consumo, y 4 proporcionarles tratamiento a personas con problemas relacionados con el alcohol. Las actuales medidas legislativas de los países de ALC tratan sobre todo de reducir la disponibilidad de bebidas alcohólicas, generalmente estableciendo una edad mínima para su consumo. Sin embargo, raramente se vela por el cumplimiento de estas leyes. El documento del Banco Mundial concluye con una serie de

  4. Security Infrastructure and Applicationsfor Mobile Agents

    OpenAIRE

    Shibli, Awais

    2010-01-01

    Research areas of this dissertation are security for mobile agents, for applications based on mobile agents, and for distributed network environments in which mobile agents execute. Mobile agents paradigm has captured researchers’ and industry’s interests long time ago because of its innovative capabilities and attractive applications. The ability of mobile agents to autonomously migrate from host to host, transferring their code and internal state, enables them to accomplish tasks in network...

  5. From SMART to agent systems development

    OpenAIRE

    Ashri, R; Luck, M; d'Inverno, M

    2005-01-01

    In order for agent-oriented software engineering to prove effective it must use principled notions of agents and enabling specification and reasoning, while still considering routes to practical implementation. This paper deals with the issue of individual agent specification and construction, departing from the conceptual basis provided by the smart agent framework. smart offers a descriptive specification of an agent architecture but omits consideration of issues relating to\\ud construction...

  6. Limonene and tetrahydrofurfuryl alcohol cleaning agent

    Science.gov (United States)

    Bohnert, George W.; Carter, Richard D.; Hand, Thomas E.; Powers, Michael T.

    1996-05-07

    The present invention is a tetrahydrofurfuryl alcohol and limonene or terpineol cleaning agent and method for formulating and/or using the cleaning agent. This cleaning agent effectively removes both polar and nonpolar contaminants from various electrical and mechanical parts and is readily used without surfactants, thereby reducing the need for additional cleaning operations. The cleaning agent is warm water rinsable without the use of surfactants. The cleaning agent can be azeotropic, enhancing ease of use in cleaning operations and ease of recycling.

  7. Limonene and tetrahydrofurfurly alcohol cleaning agent

    Science.gov (United States)

    Bohnert, George W.; Carter, Richard D.; Hand, Thomas E.; Powers, Michael T.

    1997-10-21

    The present invention is a tetrahydrofurfuryl alcohol and limonene cleaning agent and method for formulating and/or using the cleaning agent. This cleaning agent effectively removes both polar and nonpolar contaminants from various electrical and mechanical parts and is readily used without surfactants, thereby reducing the need for additional cleaning operations. The cleaning agent is warm water rinsable without the use of surfactants. The cleaning agent can be azeotropic, enhancing ease of use in cleaning operations and ease of recycling.

  8. Halide test agent replacement study

    Energy Technology Data Exchange (ETDEWEB)

    Banks, E.M.; Freeman, W.P.; Kovach, B.J. [and others

    1995-02-01

    The intended phaseout of the chlorofluorocarbons (CFCs) from commercial use required the evaluation of substitute materials for the testing for leak paths through both individual adsorbers and installed adsorbent banks. The American Society of Mechanical Engineers (ASME) Committee on Nuclear Air and Gas Treatment (CONAGT) is in charge of maintaining the standards and codes specifying adsorbent leak test methods for the nuclear safety related air cleaning systems. The currently published standards and codes cite the use of R-11, R-12 and R-112 for leak path test agents. All of these compounds are CFCs. There are other agencies and organizations (USDOE, USDOD and USNRC) also specifying testing for leak paths or in some cases for special life tests using the above compounds. The CONAGT has recently developed criteria for the suitability evaluation of substitute test agents. On the basis of these criteria, several compounds were evaluated for their acceptability as adsorbent bed leak and life test agents. The ASME CONAGT Test Agent Qualification Criteria. The test agent qualification is based on the following parameters: (1) Similar retention times on activated carbons at the same concentration levels as one of the following: R-11, R-12, R-112 or R-112a. (2) Similar lower detection limit sensitivity and precision in the concentration range of use as R-11, R-12, R-112 and R-112a. (3) Gives the same in-place leak test results as R-11, R-12, R-112, or R-112a. (4) Chemical and radiological stability under the use conditions. (5) Causes no degradation of the carbon and its impregnant or of the other NATS components under the use conditions. (6) Is listed in the USEPA Toxic Substances Control Act (TSCA) inventory for commercial use.

  9. Influência do vício, relacionado ao uso de mídias sociais, na extensão dos limites da confiança

    OpenAIRE

    Lopez, Manuel Jesus Mamani

    2015-01-01

    É fato que as mídias eletrônicas são utilizadas cada dia mais como ferramentas de comunicação e interação entre usuários, criando assim as chamadas comunidades sociovirtuais. Um dos problemas decorrentes disso, como em qualquer outra situação, está relacionado aos excessos no seu uso. A sociedade se dá conta de que alguns usuários transgridem limites considerados razoáveis do ponto de vista da dependência das mídias, do tempo a elas dedicado e dos conteúdos compartilhados. Esse vício surge em...

  10. Estrategia de inclusión de la historia de la ciencia y la experimentación para construir en e aula el conocimiento científico escolar relacionado con la electrización

    Directory of Open Access Journals (Sweden)

    Liliana Sandoval Manzano

    2009-10-01

    Full Text Available En la presente investigación se plantea una propuesta de secuenciación de actividades, mediante el uso de la historia de la ciencia para la enseñanzaaprendizajeevaluación del concepto de electrización como un fenómeno de estudio fundamental de la física, tomando como punto de partida la vivencia de Tales de Mileto, la cual pretende contribuir en la solución al problema que se encuentra en la enseñanza de las ciencias, donde primero se presenta la teoría y posteriormente se procede a experimentar para comprobar lo que se ha dicho anteriormente? esto genera en nuestros estudiantes de la básica secundaria el no desarrollo de competencias científicas y el no lograr construir significativamente conceptos relacionados con la física.

  11. Avaliação geoestatística do depósito estano-tungstenífero relacionado ao Maciço Granítico Correas-Ribeirão Branco-SP

    OpenAIRE

    José Maximino Tadeu Miras Ferron

    2000-01-01

    Esta dissertação apresenta os resultados de um estudo geoestatístico realizado sobre os dados de pesquisa em um depósito estano-tungstenífero relacionado ao Maciço Granítico Correas, localizado no Município de Ribeirão Branco - SP. Este depósito mineral foi intensivamente pesquisado pela Mineração Taboca S.A., em cooperação com o Instituto de Pesquisas Tecnológicas do Est. de São Paulo - IPT. Cerca de 5000 metros de sondagem rotativa a diamante foram realizados resultando na descoberta de sei...

  12. Análise das ocorrências das lesões no trânsito e fatores relacionados segundo resultados da Pesquisa Nacional por Amostra de Domicílios (PNAD) Brasil, 2008

    OpenAIRE

    Malta,Deborah Carvalho; Mascarenhas,Márcio Dênis Medeiros; Bernal,Regina Tomie Ivata; Silva,Marta Maria Alves da; Pereira,Cimar Azeredo; Minayo,Maria Cecília de Souza; Morais Neto,Otaliba Libânio de

    2011-01-01

    O objetivo foi descrever as estimativas de ocorrência de lesões decorrentes do trânsito e os fatores relacionados à população brasileira a partir dos dados obtidos na Pesquisa Nacional por Amostra de Domicílios (PNAD). Trata-se de amostra probabilística em três estágios: municípios, setores censitários e domicílios. Foram entrevistadas 391.868 pessoas. As variáveis acidente de trânsito (AT) e uso de cinto de segurança foram descritas segundo dados sociodemográficos e de região de residência. ...

  13. Causes of drug-related problems in the emergency room of a hospital in southern Brazil Problemas relacionados con medicamentos en el servicio de urgencias de un hospital en el sur de Brasil

    Directory of Open Access Journals (Sweden)

    Roberta Simone Andreazza

    2011-12-01

    Full Text Available Objective: To assess the frequency and types of drug-related problems (DRPs in patients seeking emergency care in a teaching hospital in southern Brazil and to identify the possible causes and drugs involved in these problems. Method: A cross-sectional study was performed, using a structured questionnaire for data collection. Multivariate logistic regression was used to control for possible confounding factors and to establish an independent association between the presence of DRPs and the amount of medication, patient's age and their educational level. Results: A total of 350 patients were interviewed. The frequency of DRPs was 31.6%. Quantitative ineffectiveness was observed in 30.9% of DRPs and the main cause of the DRP was an inadequate dosing regimen. Sixty-six DRPs (53.7% were caused by the health system or the health professionals. Factors independently influencing the development of DRPs were educational level and the number of drugs being taken. Conclusions: Our data suggest that one-third of the patients attending the emergency room of our hospital had a drug-related problem, highlighting the importance of considering drugs as a possible cause of health problems and the need for their more rational use.Objetivo: Evaluar la frecuencia y el tipo de problemas relacionados con medicamentos que presentan los pacientes que acuden al servicio de urgencias en un hospital universitario del sur de Brasil, e identificar las posibles causas y los fármacos involucrados. Método: La investigación siguió el modelo de estudio transversal, con una encuesta estructurada para la recogida de los datos. Se empleó el análisis de regresión logística múltiple para controlar posibles factores de confusión y establecer una asociación independiente entre la presencia de problemas relacionados con medicamentos y el número de éstos, la edad y el nivel educativo. Resultados: Se entrevistaron 350 pacientes y la frecuencia de problemas relacionados con

  14. Innovative agents in cancer prevention.

    Science.gov (United States)

    Manson, Margaret M; Farmer, Peter B; Gescher, Andreas; Steward, William P

    2005-01-01

    There are many facets to cancer prevention: a good diet, weight control and physical activity, a healthy environment, avoidance of carcinogens such as those in tobacco smoke, and screening of populations at risk to allow early detection. But there is also the possibility of using drugs or naturally occurring compounds to prevent initiation of, or to suppress, tumour growth. Only a few such agents have been used to date in the clinic with any success, and these include non-steroidal anti-inflammatory drugs for colon, finasteride for prostate and tamoxifen or raloxifene for breast tumours. An ideal chemopreventive agent would restore normal growth control to a preneoplastic or cancerous cell population by modifying aberrant signalling pathways or inducing apoptosis (or both) in cells beyond repair. Characteristics for such an agent include selectivity for damaged or transformed cells, good bioavailability and more than one mechanism of action to foil redundancy or crosstalk in signalling pathways. As more research effort is being targeted towards this area, the distinction between chemotherapeutic and chemopreventive agents is blurring. Chemotherapeutic drugs are now being designed to target over- or under-active signalling molecules within cancer cells, a philosophy which is just as relevant in chemoprevention. Development of dietary agents is particularly attractive because of our long-standing exposure to them, their relative lack of toxicity, and encouraging indications from epidemiology. The carcinogenic process relies on the cell's ability to proliferate abnormally, evade apoptosis, induce angiogenesis and metastasise to distant sites. In vitro studies with a number of different diet-derived compounds suggest that there are molecules capable of modulating each of these aspects of tumour growth. However, on the negative side many of them have rather poor bioavailability. The challenge is to uncover their multiple mechanisms of action in order to predict their

  15. Factors relating to depressive symptoms among elderly people with chronic vestibular dysfunction Fatores relacionados aos sintomas depressivos de idosos com disfunção vestibular crônica

    Directory of Open Access Journals (Sweden)

    Juliana Maria Gazzola

    2009-06-01

    Full Text Available OBJECTIVE: To identify factors relating to depressive symptoms among elderly people with chronic vestibular dysfunction. METHOD: This was a cross-sectional study in which 120 elderly people with chronic vestibular dysfunction answered the Geriatric Depression Scale questionnaire. Multivariate linear regression analysis was performed (pOBJETIVO: Identificar os fatores relacionados aos sintomas depressivos de idosos com disfunção vestibular crônica. MÉTODO: Estudo transversal, em que 120 idosos com disfunção vestibular crônica submeteram-se ao questionário Geriatric Depression Scale. Realizou-se análise de regressão linear multivariada (p<0,05 e IC de 95%. RESULTADOS: Os pacientes apresentaram média de 12,86 ± 6,39 pontos no GDS, sendo que 67 idosos (55,8% pontuaram acima da nota de corte 11. O modelo preditivo para piora dos sintomas depressivos foi composto por gênero feminino, distúrbios de memória e da concentração, insônia, hipoacusia, visão péssima, não utilização de dispositivo de auxílio à marcha e maior impacto da tontura no aspecto emocional. CONCLUSÃO: O maior número de sintomas depressivos de idosos vestibulopatas crônicos está relacionado à presença de distúrbios de memória e da concentração, insônia, hipoacusia, visão péssima, maior impacto da tontura no aspecto emocional, gênero feminino e não utilização de dispositivo de auxílio à marcha.

  16. The Role of Context-Related Parameters in Adults’ Mental Computational Acts (El papel de los parámetros relacionados con el contexto en actos de cálculo mental en adultos

    Directory of Open Access Journals (Sweden)

    Nirmala Naresh

    2012-01-01

    Full Text Available Researchers who have carried out studies pertaining to mental computation and everyday mathematics point out that adults and children reason intuitively based upon experiences within specific contexts; they use invented strategies of their own to solve real-life problems. We draw upon research areas of mental computation and everyday mathematics to report on a study that investigated adults’ use of mental mathematics in everyday settings. In this paper, we report on one adult’s use of mental computation at work and highlight the role of context and context related parameters in his mental mathematical activities.Los investigadores que han realizado estudios relacionados con el cálculo mental y las matemáticas cotidianas señalan que los adultos y los niños razonan intuitivamente basándose en las experiencias de contextos específicos; usan estrategias inventadas por sí mismos para resolver problemas de la vida real. Nos basamos en las áreas de investigación del cálculo mental y las matemáticas cotidianas para informar sobre un estudio que investigó el uso que hacen los adultos de la matemática mental en el entorno cotidiano. En este artículo, informamos sobre el uso que hace un adulto del cálculo mental en su trabajo y destacamos el papel del contexto y de los parámetros relacionados con el contexto en sus actividades matemáticas mentales.

  17. Neuroprotective "agents" in surgery. Secret "agent" man, or common "agent" machine?

    Science.gov (United States)

    Andrews, R. J.

    1999-01-01

    The search for clinically-effective neuroprotective agents has received enormous support in recent years--an estimated $200 million by pharmaceutical companies on clinical trials for traumatic brain injury alone. At the same time, the pathophysiology of brain injury has proved increasingly complex, rendering the likelihood of a single agent "magic bullet" even more remote. On the other hand, great progress continues with technology that makes surgery less invasive and less risky. One example is the application of endovascular techniques to treat coronary artery stenosis, where both the invasiveness of sternotomy and the significant neurological complication rate (due to microemboli showering the cerebral vasculature) can be eliminated. In this paper we review aspects of intraoperative neuroprotection both present and future. Explanations for the slow progress on pharmacologic neuroprotection during surgery are presented. Examples of technical advances that have had great impact on neuroprotection during surgery are given both from coronary artery stenosis surgery and from surgery for Parkinson's disease. To date, the progress in neuroprotection resulting from such technical advances is an order of magnitude greater than that resulting from pharmacologic agents used during surgery. The progress over the last 20 years in guidance during surgery (CT and MRI image-guidance) and in surgical access (endoscopic and endovascular techniques) will soon be complemented by advances in our ability to evaluate biological tissue intraoperatively in real-time. As an example of such technology, the NASA Smart Probe project is considered. In the long run (i.e., in 10 years or more), pharmacologic "agents" aimed at the complex pathophysiology of nervous system injury in man will be the key to true intraoperative neuroprotection. In the near term, however, it is more likely that mundane "agents" based on computers, microsensors, and microeffectors will be the major impetus to improved

  18. Uso y actitudes relacionados a las drogas en las estudiantes de enfermería de la Universidad Mayor de San Andrés Uso e atitudes relacionados às drogas em estudantes de enfermagem da Universidade Maior de San Andres Use and attitudes about drugs among nursing students at the Universidad Mayor de San Andres

    Directory of Open Access Journals (Sweden)

    Iblin Elizabeth Enriquez Flores

    2004-04-01

    Full Text Available Este trabajo representa los resultados del Uso y Actitudes relacionando el alcohol, tabaco, Hojas de coca, tranquilizantes y anfetaminas en Estudiantes de Enfermería de la Universidad Mayor de San Andrés. El objetivo es analizar las actitudes mediante el uso de diferentes substancias con aquellos que no usan en los últimos 12 meses. Los datos fueron recolectados en Agosto del 2002, utilizando un cuestionario auto administrado y distribuido, garantizando el anonimato. Se obtuvieron estos resultados: Las actitudes relacionadas a las drogas aprueban el uso de hojas de coca, uso de alcohol, uso de tranquilizantes y desaprueban el uso de cocaína. El uso personal de drogas en los últimos 12 meses corresponde a: hojas de coca diariamente, alcohol menos que una vez por semana y tabaco diariamente. El principal motivo de uso de estas drogas vinculase a la práctica religiosa; los estudiantes son introducidos por primera vez por familiares y por amigos/enamorados.Este trabalho representa os resultados do Uso e Atitudes relacionados ao álcool, tabaco, folhas de coca, tranqüilizantes e anfetaminas em estudantes de enfermagem da Universidade Mayor de San Andrés. O objetivo é analisar as atitudes mediante o uso das diferentes substâncias com aqueles que usaram ou não drogas nos últimos 12 meses. Os dados da amostra estratificada e intencional foram coletados em agosto de 2002, utilizando um questionário auto administrado distribuído para preservar o anonimato. Obtiveram-se estes resultados: as atitudes relacionadas às drogas demonstram a aprovação do uso das folhas de coca, álcool, tranqüilizantes e desaprovam o uso da cocaína. O uso pessoal de drogas nos últimos 12 meses corresponde a: às folhas de coca diariamente, ao álcool menos que uma vez por semana, e tabaco diariamente. O principal motivo do uso destas drogas vincula-se a prática religiosa; os estudantes são introduzidos pela primeira vez pelos familiares, pelos amigos

  19. Factors related to patient adherence to antidiabetic drug therapy Factores relacionados a la adhesión del paciente diabético a la terapéutica medicamentosa Fatores relacionados à adesão do paciente diabético à terapêutica medicamentosa

    Directory of Open Access Journals (Sweden)

    Heloisa Turcatto Gimenes

    2009-02-01

    Full Text Available The objective of the present study was to assess patient adherence to antidiabetic drug therapy and its association with factors related to the patient, patient-provider relationship, therapeutic regimen and the disease itself. The study comprised 46 diabetic patients enrolled in a research and extension education center in the State of Sao Paulo, southeastern Brazil, in 2007. Data was collected through interviews using a questionnaire and the Treatment Adherence Measure (TAM. The patient adherence level to antidiabetic drug therapy was 78.3%. In conclusion, since prevalence of adherence is below that recommended in the literature, and in the light of poor blood glucose control and alleged failure of therapeutic regimen, health providers are urged to measure diabetic patient treatment adherence, because it is key to adequate diabetes management with drugs.Este estudio tuvo el objetivo de determinar la adhesión del paciente diabético a la terapéutica medicamentosa y verificar la asociación de la adhesión con factores relacionados al paciente, a la relación profesional-paciente, al esquema terapéutico y a la enfermedad. Participaron 46 diabéticos registrados en un centro de investigación y extensión universitaria en el interior del Estado de San Pablo, en 2007. Los datos fueron obtenidos mediante entrevista, utilizándose un cuestionario y la prueba de Medida de Adhesión al Tratamiento - MAT. Los resultados mostraron que la adhesión del paciente diabético al tratamiento medicamentoso para tratamiento de la diabetes fue de 78,3%. Se concluye que, al considerar que la prevalencia de la adhesión obtenida en el presente estudio estuvo por debajo de la recomendada en la literatura y frente a la vigencia del mal control de la glucemia y de la supuesta falencia en el esquema terapéutico, se urgente que los profesionales de la salud reconozcan la importancia de evaluar la adhesión de los pacientes diabéticos, al tratamiento medicamentoso

  20. Logical Theories for Agent Introspection

    DEFF Research Database (Denmark)

    Bolander, Thomas

    2004-01-01

    Artificial intelligence systems (agents) generally have models of the environments they inhabit which they use for representing facts, for reasoning about these facts and for planning actions. Much intelligent behaviour seems to involve an ability to model not only one's external environment...... by self-reference. In the standard approach taken in artificial intelligence, the model that an agent has of its environment is represented as a set of beliefs. These beliefs are expressed as logical formulas within a formal, logical theory. When the logical theory is expressive enough to allow...... introspective reasoning, the presence of self-reference causes the theory to be prone to inconsistency. The challenge therefore becomes to construct logical theories supporting introspective reasoning while at the same time ensuring that consistency is retained. In the thesis, we meet this challenge by devising...

  1. Injectable agents affecting subcutaneous fats.

    Science.gov (United States)

    Chen, David Lk; Cohen, Joel L; Green, Jeremy B

    2015-09-01

    Mesotherapy is an intradermal or subcutaneous injection of therapeutic agents to induce local effects, and was pioneered in Europe during the 1950s. For the past 2 decades, there has been significant interest in the use of mesotherapy for minimally invasive local fat contouring. Based on the theorized lipolytic effects of the agent phosphatidylcholine, initial attempts involved its injection into subcutaneous tissue. With further studies, however, it became apparent that the activity attributed to phosphatidylcholine mesotherapy was due to the adipolytic effects of deoxycholate, a detergent used to solubilize phosphatidylcholine. Since then, clinical trials have surfaced that demonstrate the efficacy of a proprietary formulation of deoxycholate for local fat contouring. Current trials on mesotherapy with salmeterol, a b-adrenergic agonist and lipolysis stimulator, are underway-with promising preliminary results as well. ©2015 Frontline Medical Communications.

  2. Diagnostic agent for radioimmunological determinations

    International Nuclear Information System (INIS)

    Updike, S.J.

    1978-01-01

    The invention concerns a diagnostic agent for radioimmunological determinations. According to the invention, a binding protein (protein globulins, antibodies) of an aqueous solution specific for the substance to be determined is incorporated in gel particles of a strongly hydrophilic insoluble gel of controlled pore size. After subsequent drying of the system, a radioactively labelled form of the substance to be determined from a non-aqueous medium is included. The mixture is dried again. The diagnostic agent forred can be well stored and is very stable. There is no loss of activity of the specific bonding protein when drying according to the invented method. The described reagent can be effectively applied to the determination of many antigens and haptens: The gel is rehydrated by the sample to be investigated; as a result of this, the non-bonded tracer is set free and competes with the non-labelled substance for the bonding position. (VJ) [de

  3. Dopamine agents for hepatic encephalopathy

    DEFF Research Database (Denmark)

    Junker, Anders Ellekær; Als-Nielsen, Bodil; Gluud, Christian

    2014-01-01

    BACKGROUND: Patients with hepatic encephalopathy may present with extrapyramidal symptoms and changes in basal ganglia. These changes are similar to those seen in patients with Parkinson's disease. Dopamine agents (such as bromocriptine and levodopa, used for patients with Parkinson's disease) have...... therefore been assessed as a potential treatment for patients with hepatic encephalopathy. OBJECTIVES: To evaluate the beneficial and harmful effects of dopamine agents versus placebo or no intervention for patients with hepatic encephalopathy. SEARCH METHODS: Trials were identified through the Cochrane...... hepatic encephalopathy that were published during 1979 to 1982 were included. Three trials assessed levodopa, and two trials assessed bromocriptine. The mean daily dose was 4 grams for levodopa and 15 grams for bromocriptine. The median duration of treatment was 14 days (range seven to 56 days). None...

  4. Behavior acquisition in artificial agents

    OpenAIRE

    Thurau, Christian

    2006-01-01

    Computational skill acquisition in robots and simulated agents has been a topic of increasing popularity throughout the last years. Despite impressive progress, autonomous behavior at a level of animals and humans are not yet replicated by machines. Especially when a complex environment demands versatile, goal-oriented behavior, current artificial systems show shortcomings. Consider for instance modern 3D computer games. Despite their key role for more emersive game experience, surprisingly l...

  5. Belief Change in Reasoning Agents

    OpenAIRE

    Jin, Yi

    2007-01-01

    The capability of changing beliefs upon new information in a rational and efficient way is crucial for an intelligent agent. Belief change therefore is one of the central research fields in Artificial Intelligence (AI) for over two decades. In the AI literature, two different kinds of belief change operations have been intensively investigated: belief update, which deal with situations where the new information describes changes of the world; and belief revision, which assumes the world is st...

  6. Preponderant agent, what is that?

    Directory of Open Access Journals (Sweden)

    Clara Luz Álvarez

    2015-05-01

    Full Text Available Purpose – Preponderant agent is a new instrument for preventing and reverting adverse impact in competition due to highly concentrated markets. Therefore, this paper's objective is to present and analyze the preponderant agent concept in Mexico with emphasis on the broadcast sector, the telecommunication regulator decisions and the courts' interpretation. Methodology/approach/design – The objectives were achieved by researching and analyzing the main legal documents, the Congress reports and debates, the regulator's decisions and other relevant regulator's documents, as well as final decisions by the courts in connection with broadcast sector. Findings – Among the findings are that certain topics were not duly addressed by the Mexican regulator, or by the Congress, whereas the courts were more willing to hold decisions in favor of public interest based on constitutional intent and deference to the regulator's decision. Originality/value – This paper will be valuable for persons interested in telecommunications, broadcast and antitrust. Although the preponderant agent concept created in Mexico is not necessarily a “best practice”, it does provide an alternative instrument in antitrust. Moreover, the courts decisions also provide criteria regarding regulatory deference for the regulator.

  7. Biochemical toxicology of environmental agents

    International Nuclear Information System (INIS)

    Bruin, A. de

    1976-01-01

    A thorough and up-to-date account of the molecular-biological aspects of harmful agents - both chemical and physical - is given. This current treatise is principally intended to serve as an informative reference work for researchers in various areas of the field. In the pursuit of this aim, a devision of the entire field into 42 chapters has been made. Each chapter starts with a short introductory account dealing with the biochemical essentials of the particular subject. Radiation effects are discussed briefly at the end of each treatise. In order to make the treatise useful as a source book, a substantial collection of pertinent literature references is provided which are numbered in order of citation in the text. Initial chapters are devoted to the metabolic fate of the major classes of xenobiotic compounds. Peripheral topics, closely related to metabolism and dealing with modification of xenobiotic-metabolizing ability, as well as interaction phenomena follow (chs. 5-8). Subjects that draw heavily on the practical field of occupational hygiene are dealt with in chapters 9 and 10. The systematic treatment of how chemical and physical agents interact with the various biochemical and enzymatic systems they encounter during their passage through the organism occupies quantitatively the main part of the book (chs. 11-36). Finally, radiation biochemistry is discussed from the viewpoint of its high degree of scientific advancement, and secondly because the type of biochemical changes produced in vivo by X-rays closely parallel those evoked by chemical agents

  8. Agent planning in AgScala

    Science.gov (United States)

    Tošić, Saša; Mitrović, Dejan; Ivanović, Mirjana

    2013-10-01

    Agent-oriented programming languages are designed to simplify the development of software agents, especially those that exhibit complex, intelligent behavior. This paper presents recent improvements of AgScala, an agent-oriented programming language based on Scala. AgScala includes declarative constructs for managing beliefs, actions and goals of intelligent agents. Combined with object-oriented and functional programming paradigms offered by Scala, it aims to be an efficient framework for developing both purely reactive, and more complex, deliberate agents. Instead of the Prolog back-end used initially, the new version of AgScala relies on Agent Planning Package, a more advanced system for automated planning and reasoning.

  9. A Framework for Organization-Aware Agents

    DEFF Research Database (Denmark)

    Jensen, Andreas Schmidt; Dignum, Virginia; Villadsen, Jørgen

    2016-01-01

    This short paper introduces and summarizes the AORTA reasoning framework that can be integrated into BDI-agents to enable organizational decision-making. This work has recently been published in the Journal of Autonomous Agents and Multi-Agent Systems (JAAMAS), as [3].......This short paper introduces and summarizes the AORTA reasoning framework that can be integrated into BDI-agents to enable organizational decision-making. This work has recently been published in the Journal of Autonomous Agents and Multi-Agent Systems (JAAMAS), as [3]....

  10. 14th International Conference on Practical Applications of Agents and Multi-Agent Systems : Special Sessions

    CERN Document Server

    Escalona, María; Corchuelo, Rafael; Mathieu, Philippe; Vale, Zita; Campbell, Andrew; Rossi, Silvia; Adam, Emmanuel; Jiménez-López, María; Navarro, Elena; Moreno, María

    2016-01-01

    PAAMS, the International Conference on Practical Applications of Agents and Multi-Agent Systems is an evolution of the International Workshop on Practical Applications of Agents and Multi-Agent Systems. PAAMS is an international yearly tribune to present, to discuss, and to disseminate the latest developments and the most important outcomes related to real-world applications. It provides a unique opportunity to bring multi-disciplinary experts, academics and practitioners together to exchange their experience in the development of Agents and Multi-Agent Systems. This volume presents the papers that have been accepted for the 2016 in the special sessions: Agents Behaviours and Artificial Markets (ABAM); Advances on Demand Response and Renewable Energy Sources in Agent Based Smart Grids (ADRESS); Agents and Mobile Devices (AM); Agent Methodologies for Intelligent Robotics Applications (AMIRA); Learning, Agents and Formal Languages (LAFLang); Multi-Agent Systems and Ambient Intelligence (MASMAI); Web Mining and ...

  11. Validation of Agent Based Distillation Movement Algorithms

    National Research Council Canada - National Science Library

    Gill, Andrew

    2003-01-01

    Agent based distillations (ABD) are low-resolution abstract models, which can be used to explore questions associated with land combat operations in a short period of time Movement of agents within the EINSTein and MANA ABDs...

  12. Security Measures to Protect Mobile Agents

    Science.gov (United States)

    Dadhich, Piyanka; Govil, M. C.; Dutta, Kamlesh

    2010-11-01

    The security issues of mobile agent systems have embarrassed its widespread implementation. Mobile agents that move around the network are not safe because the remote hosts that accommodate the agents initiates all kinds of attacks. These hosts try to analyze the agent's decision logic and their accumulated data. So, mobile agent security is the most challenging unsolved problems. The paper analyzes various security measures deeply. Security especially the attacks performed by hosts to the visiting mobile agent (the malicious hosts problem) is a major obstacle that prevents mobile agent technology from being widely adopted. Being the running environment for mobile agent, the host has full control over them and could easily perform many kinds of attacks against them.

  13. Prostate Activated Prodrugs and Imaging Agents

    National Research Council Canada - National Science Library

    Jones, Graham B

    2004-01-01

    .... The substrate chosen was a 3 component system composed of a peptide sequence with affinity for PSA, an imaging agent and a deactivating bridge-linker, which electronically incapacitates the imaging agent...

  14. Comparison of Communication Models for Mobile Agents

    Directory of Open Access Journals (Sweden)

    Xining Li

    2003-04-01

    Full Text Available An agent is a self-contained process being acting on behalf of a user. A Mobile Agent is an agent roaming the internet to access data and services, and carry out its assigned task remotely. This paper will focus on the communication models for Mobile Agents. Generally speaking, communication models concern with problems of how to name Mobile Agents, how to establish communication relationships, how to trace moving agents, and how to guarantee reliable communication. Some existing MA systems are purely based on RPC-style communication, whereas some adopts asynchronous message passing, or event registration/handling. Different communication concepts suitable for Mobile Agents are well discussed in [1]. However, we will investigate these concepts and existing models from a different point view: how to track down agents and deliver messages in a dynamic, changing world.

  15. Protecting mobile agents from external replay attacks

    OpenAIRE

    Garrigues Olivella, Carles; Migas, Nikos; Buchanan, William; Robles, Sergi; Borrell Viader, Joan

    2014-01-01

    Peer-reviewed This paper presents a protocol for the protection of mobile agents against external replay attacks. This kind of attacks are performed by malicious platforms when dispatching an agent multiple times to a remote host, thus making it reexecute part of its itinerary. Current proposals aiming to address this problem are based on storing agent identifiers, or trip markers, inside agent platforms, so that future reexecutions can be detected and prevented. The problem of these solut...

  16. Extinguishing agent for combustible metal fires

    Science.gov (United States)

    Riley, John F.; Stauffer, Edgar Eugene

    1976-10-12

    A low chloride extinguishing agent for combustible metal fires comprising from substantially 75 to substantially 94 weight percent of sodium carbonate as the basic fire extinguishing material, from substantially 1 to substantially 5 weight percent of a water-repellent agent such as a metal stearate, from substantially 2 to substantially 10 weight percent of a flow promoting agent such as attapulgus clay, and from substantially 3 to substantially 15 weight percent of a polyamide resin as a crusting agent.

  17. Agent based energy management systems

    Energy Technology Data Exchange (ETDEWEB)

    Wolter, Martin

    2012-07-01

    In liberalized, regulated energy markets, the different participants - namely producers and consumers of energy, transmission and distribution system operators as well as regulatory authorities - have partly divergent and partly convergent interests. Loads, power plants and grid operators try to maximize their own benefit in this highly complex environment accepting to act detrimentally to others. Although the relationship between the participants is mostly competitive, there are some fundamental shared interests, e.g. voltage stability, a constant system frequency or efficient energy production, transmission and distribution, which are endangered e.g. by increased injection of volatile sources in low and medium voltage grids, displacement of stabilizing bulk generation and the slowly progressing extension of the electric grid. There is a global consensus, that the resulting challenges can efficiently be faced using information and communication technologies to coordinate grid utilization and operation. The basic idea is to benefit from unused reserves by participating in deployment of system services e.g. reactive power supply to keep the voltage within certain bounds. The coordination can best be done by the grid operator. All activities of that kind are summarized under the umbrella term ''Smart Grid''. To simultaneously model the behavior and interests of different types of market participants and their convergent and divergent interests, multi-agent systems are used. They offer a perfectly fitting framework for this sort of game theory and can easily be adapted to all kinds of new challenges of electricity markets. In this work, multi-agent systems are used to either cooperatively or competitively solve problems in distribution and transmission systems. Therefore, conventional algorithms have to be modified to converge into multiple local optima using only small pieces of the entire system information. It is clearly stated, that personal

  18. Pathogenic agents in freshwater resources

    Science.gov (United States)

    Geldreich, Edwin E.

    1996-02-01

    Numerous pathogenic agents have been found in freshwaters used as sources for water supplies, recreational bathing and irrigation. These agents include bacterial pathogens, enteric viruses, several protozoans and parasitic worms more common to tropical waters. Although infected humans are a major source of pathogens, farm animals (cattle, sheep, pigs), animal pets (dogs, cats) and wildlife serve as significant reservoirs and should not be ignored. The range of infected individuals within a given warm-blooded animal group (humans included) may range from 1 to 25%. Survival times for pathogens in the water environment may range from a few days to as much as a year (Ascaris, Taenia eggs), with infective dose levels varying from one viable cell for several primary pathogenic agents to many thousands of cells for a given opportunistic pathogen.As pathogen detection in water is complex and not readily incorporated into routine monitoring, a surrogate is necessary. In general, indicators of faecal contamination provide a positive correlation with intestinal pathogen occurrences only when appropriate sample volumes are examined by sensitive methodology.Pathways by which pathogens reach susceptible water users include ingestion of contaminated water, body contact with polluted recreational waters and consumption of salad crops irrigated by polluted freshwaters. Major contributors to the spread of various water-borne pathogens are sewage, polluted surface waters and stormwater runoff. All of these contributions are intensified during periods of major floods. Several water-borne case histories are cited as examples of breakdowns in public health protection related to water supply, recreational waters and the consumption of contaminated salad crops. In the long term, water resource management must focus on pollution prevention from point sources of waste discharges and the spread of pathogens in watershed stormwater runoff.

  19. Mobile Agents in Networking and Distributed Computing

    CERN Document Server

    Cao, Jiannong

    2012-01-01

    The book focuses on mobile agents, which are computer programs that can autonomously migrate between network sites. This text introduces the concepts and principles of mobile agents, provides an overview of mobile agent technology, and focuses on applications in networking and distributed computing.

  20. On Programming Organization-Aware Agents

    DEFF Research Database (Denmark)

    Jensen, Andreas Schmidt

    2013-01-01

    Since it is difficult (or even impossible) to assume anything about the agents’ behavior and goals in an open multi-agent system, it is often suggested that an organization is imposed upon the agents, whichhich, by abstracting away from the agents, specifies boundaries and objectives that the age...

  1. Modelling an Agent's Mind and Matter

    NARCIS (Netherlands)

    Jonker, C.M.; Treur, J.; Boman, M.

    1997-01-01

    In agent models often it is assumed that the agent maintains internal representations of the material world (e.g., its beliefs). An overall model of the agent and the material world necessarily incorporates sub-models for physical simulation and symbolic simulation, and a formalisation of the

  2. Switching dynamics of multi-agent learning

    NARCIS (Netherlands)

    Vrancx, P.; Tuyls, K.P.; Westra, R.

    2008-01-01

    This paper presents the dynamics of multi-agent reinforcement learning in multiple state problems. We extend previous work that formally modelled the relation between reinforcement learning agents and replicator dynamics in stateless multi-agent games. More precisely, in this work we use a

  3. Animated BDP agents in virtual environments

    NARCIS (Netherlands)

    Nijholt, Antinus; Egges, A.; op den Akker, Hendrikus J.A.; Zwiers, Jakob; Krose, B.; de Rijke, M.; Schreiber, G.; van Someren, M.

    2001-01-01

    We introduce a Believes, Desires and Plans (BDP) agent that acts in a virtual environment using multi-modal interaction with the user. The environment is our virtual theatre environment. In this environment different agents have been introduced. In order to obtain a more uniform framework for agent

  4. 21 CFR 178.3860 - Release agents.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Release agents. 178.3860 Section 178.3860 Food and... and Production Aids § 178.3860 Release agents. Substances listed in paragraph (b) of this section may be safely used as release agents in petroleum wax complying with § 178.3710 and in polymeric resins...

  5. 21 CFR 181.28 - Release agents.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 3 2010-04-01 2009-04-01 true Release agents. 181.28 Section 181.28 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) FOOD FOR HUMAN... Release agents. Substances classified as release agents, when migrating from food-packaging material shall...

  6. Cooperative heuristic multi-agent planning

    NARCIS (Netherlands)

    De Weerdt, M.M.; Tonino, J.F.M.; Witteveen, C.

    2001-01-01

    In this paper we will use the framework to study cooperative heuristic multi-agent planning. During the construction of their plans, the agents use a heuristic function inspired by the FF planner (l3l). At any time in the process of planning the agents may exchange available resources, or they may

  7. Fairness in multi-agent systems

    NARCIS (Netherlands)

    Jong, de S.; Tuyls, K.P.; Verbeeck, K.

    2008-01-01

    Multi-agent systems are complex systems in which multiple autonomous entities, called agents, cooperate in order to achieve a common or personal goal. These entities may be computer software, robots, and also humans. In fact, many multi-agent systems are intended to operate in cooperation with or as

  8. Radioactive scanning agents with hydroquinone stabilizer

    International Nuclear Information System (INIS)

    Whitehouse, H.S.

    1982-01-01

    Stable compositions useful as technetium 99m-based scintigraphic agents comprise hydroquinone in combination with a pertechnetate reducing agent or dissolved in pertechnetate-99m (sup(99m)TcOsub(4)sup(-)) solution. The compositions are especially useful in combination with a phosphate or phosphonate material which carries the radionuclide to bone, thus providing a skeletal imaging agent

  9. Effectiveness testing of spill-treating agents

    International Nuclear Information System (INIS)

    Fingas, M.F.; Stoodley, R.; Laroche, N.

    1990-01-01

    Laboratory effectiveness tests are described for four classes of spill-treating agents: solidifiers, demulsifying agents, surface-washing agents and dispersants. Many treating agents in these four categories have been tested for effectiveness and the results are presented. Solidifiers or gelling agents solidify oil, requiring a large amount of agent to solidify oil-ranging between 16% by weight, to over 200%. Emulsion breakers prevent or reverse the formation of water-in-oil emulsions. A newly-developed effectiveness test shows that only one product is highly effective; however, many products will work, but require large amounts of spill-treating agent. Surfactant--containing materials are of two types, surface-washing agents and dispersants. Testing has shown that an agent that is a good dispersant is conversely a poor surface-washing agent, and vice versa. Tests of surface-washing agents show that only a few agents have effectiveness of 25-40%, where this effectiveness is the percentage of heavy oil removed from a test surface. Results using the 'swirling flask' test for dispersant effectiveness are reported. Heavy oils show effectiveness values of about 1%, medium crudes of about 10%, light crude oils of about 30% and very light oils of about 90%. (author)

  10. Individualism and Collectivism in Trade Agents

    NARCIS (Netherlands)

    Hofstede, G.J.; Jonker, C.M.; Verwaart, D.

    2008-01-01

    Agent-Based Modeling can contribute to the understanding of international trade processes. Models for the effects of culture and cultural differences on agent behavior are required for realistic agent-based simulation of international trade. This paper makes a step toward modeling of culture in

  11. A principal-agent Model of corruption

    NARCIS (Netherlands)

    Groenendijk, Nico

    1997-01-01

    One of the new avenues in the study of political corruption is that of neo-institutional economics, of which the principal-agent theory is a part. In this article a principal-agent model of corruption is presented, in which there are two principals (one of which is corrupting), and one agent (who is

  12. Modeling culture in intelligent virtual agents

    NARCIS (Netherlands)

    Mascarenhas, S.; Degens, N.; Paiva, A.; Prada, R.; Hofstede, G.J.; Beulens, A.J.M.; Aylett, R.

    2016-01-01

    This work addresses the challenge of creating virtual agents that are able to portray culturally appropriate behavior when interacting with other agents or humans. Because culture influences how people perceive their social reality it is important to have agent models that explicitly consider social

  13. Diarrhea caused by circulating agents.

    Science.gov (United States)

    Fabian, Elisabeth; Kump, Patrizia; Krejs, Guenter J

    2012-09-01

    Circulating agents cause intestinal secretion or changes in motility with decreased intestinal transit time, resulting in secretory-type diarrhea. Secretory diarrhea as opposed to osmotic diarrhea is characterized by large-volume, watery stools, often more than 1 L per day; by persistence of diarrhea when patients fast; and by the fact that on analysis of stool-water, measured osmolarity is identical to that calculated from the electrolytes present. Although sodium plays the main role in water and electrolyte absorption, chloride is the major ion involved in secretion. Copyright © 2012 Elsevier Inc. All rights reserved.

  14. [Antiangiogenic agents in ARMD treatment].

    Science.gov (United States)

    Coroi, Mihaela-Cristiana; Demea, Sorina; Todor, Meda; Apopei, Emmanuela

    2012-01-01

    The aim of antiangiogenic agents in the treatment of age related senile macular degeneration is to destroy coroidian neoformation vessels by minimally affecting the central vision. We present a case of important central vision recovery after 3 intravitreal injections of Avastin. The therapeutic decision and patient monitoring have been made using imaging studies, such as OCT and AFG. A modern therapeutic approach of neovascular forms of age related macular degeneration, backed up by AFG and OCT is a modern treatment method of this disabling illness which brings patients optimal functional and structural improvement.

  15. Social Robots as Persuasive Agents

    DEFF Research Database (Denmark)

    Vlachos, Evgenios; Schärfe, Henrik

    2014-01-01

    Robots are more and more used in a social context, and in this paper we try to formulate a research agenda concerning ethical issues around social HRI in order to be prepared for future scenarios where robots may be a naturally integrated part of human society. We outline different paradigms to d...... to describe the role of social robots in communication processes with humans, and connect HRI with the topic of persuasive technology in health care, to critically reflect the potential benefits of using social robots as persuasive agents....

  16. Protein binding of psychotropic agents

    International Nuclear Information System (INIS)

    Hassan, H.A.

    1990-01-01

    Based upon fluorescence measurements, protein binding of some psychotropic agents (chlorpromazine, promethazine, and trifluoperazine) to human IgG and HSA was studied in aqueous cacodylate buffer, PH7. The interaction parameters determined from emission quenching of the proteins. The interaction parameters determined include the equilibrium constant (K), calculated from equations derived by Borazan and coworkers, the number of binding sites (n) available to the monomer molecules on a single protein molecule. The results revealed a high level of affinity, as reflected by high values of K, and the existence of specific binding sites, since a limited number of n values are obtained. 39 tabs.; 37 figs.; 83 refs

  17. Agent Based Individual Traffic guidance

    DEFF Research Database (Denmark)

    Wanscher, Jørgen Bundgaard

    2004-01-01

    When working with traffic planning or guidance it is common practice to view the vehicles as a combined mass. >From this models are employed to specify the vehicle supply and demand for each region. As the models are complex and the calculations are equally demanding the regions and the detail...... of the road network is aggregated. As a result the calculations reveal only what the mass of vehicles are doing and not what a single vehicle is doing. This is the crucial difference to ABIT (Agent Based Individual Trafficguidance). ABIT is based on the fact that information on the destination of each vehicle...

  18. Multi agent gathering waste system

    Directory of Open Access Journals (Sweden)

    Álvaro LOZANO MURCIEGO

    2016-07-01

    Full Text Available Along this paper, we present a new multi agent-based system to gather waste on cities and villages. We have developed a low cost wireless sensor prototype to measure the volume level of the containers. Furthermore a route system is developed to optimize the routes of the trucks and a mobile application has been developed to help drivers in their working days. In order to evaluate and validate the proposed system a practical case study in a real city environment is modeled using open data available and with the purpose of identifying limitations of the system.

  19. Persisting problems related to race and ethnicity in public health and epidemiology research Problemas persistentes relacionados con la raza y etnia en la investigación en salud pública y epidemiología Problemas persistentes relacionados à raça e etnia na pesquisa em saúde pública e epidemiologia

    Directory of Open Access Journals (Sweden)

    Jean-Claude Moubarac

    2013-02-01

    se refiere a la salud pública y epidemiología, en el período de 2009-2011. El total de artículos seleccionados fue de 280. La revisión se basó en un conjunto de aspectos conceptuales, teóricos y metodológicos relacionados con el uso de ambos conceptos. La mayoría de los artículos revisados estuvo fundamentada en un referencial teórico y con interpretaciones de varios modelos. Sin embargo, los principales problemas identificados incluyen a falla de investigadores para diferenciar conceptos de raza y etnia; b utilización inadecuada de categorías raciales para atribuir etnia; c falta de transparencia en los métodos utilizados para evaluar ambos conceptos; y d falta de límites de direcciones asociada a la clasificación y uso de taxonomías raciales o étnicas. Se concluye que los futuros estudios que tengan como objetivo examinar las disparidades de salud deben establecer claramente la distinción entre raza y etnia, desarrollar investigaciones con orientación teórica? que trata de aspectos específicos sobre las relaciones entre raza, etnia y salud. Se argumenta que una manera de pensar sobre raza, etnia y salud es dicotomizar la investigación en dos conjuntos de aspectos sobre la relación entre la diversidad humana y la salud.Realizou-se revisão recente e abrangente da utilização de raça e etnia em pesquisas dedicadas às disparidades de saúde em epidemiologia e saúde pública. Foi descrita a base teórica sobre qual raça e etnia diferem nos métodos de trabalhos em ciência, antropologia social e de saúde pública. A revisão foi feita com base na seleção de artigos publicados em periódicos de alto fator de impacto no que diz respeito à saúde pública e epidemiologia, no período de 2009-2011. O total de artigos selecionados foi de 280. A revisão foi baseada sobre um conjunto de questões conceituais, teóricas e metodológicas relacionadas ao uso de ambos os conceitos. A maioria dos artigos revisados foi fundamentada em um

  20. Mobile agent location in distributed environments

    Science.gov (United States)

    Fountoukis, S. G.; Argyropoulos, I. P.

    2012-12-01

    An agent is a small program acting on behalf of a user or an application which plays the role of a user. Artificial intelligence can be encapsulated in agents so that they can be capable of both behaving autonomously and showing an elementary decision ability regarding movement and some specific actions. Therefore they are often called autonomous mobile agents. In a distributed system, they can move themselves from one processing node to another through the interconnecting network infrastructure. Their purpose is to collect useful information and to carry it back to their user. Also, agents are used to start, monitor and stop processes running on the individual interconnected processing nodes of computer cluster systems. An agent has a unique id to discriminate itself from other agents and a current position. The position can be expressed as the address of the processing node which currently hosts the agent. Very often, it is necessary for a user, a processing node or another agent to know the current position of an agent in a distributed system. Several procedures and algorithms have been proposed for the purpose of position location of mobile agents. The most basic of all employs a fixed computing node, which acts as agent position repository, receiving messages from all the moving agents and keeping records of their current positions. The fixed node, responds to position queries and informs users, other nodes and other agents about the position of an agent. Herein, a model is proposed that considers pairs and triples of agents instead of single ones. A location method, which is investigated in this paper, attempts to exploit this model.

  1. Animal venoms as antimicrobial agents.

    Science.gov (United States)

    Perumal Samy, Ramar; Stiles, Bradley G; Franco, Octavio L; Sethi, Gautam; Lim, Lina H K

    2017-06-15

    Hospitals are breeding grounds for many life-threatening bacteria worldwide. Clinically associated gram-positive bacteria such as Staphylococcus aureus/methicillin-resistant S. aureus and many others increase the risk of severe mortality and morbidity. The failure of antibiotics to kill various pathogens due to bacterial resistance highlights the urgent need to develop novel, potent, and less toxic agents from natural sources against various infectious agents. Currently, several promising classes of natural molecules from snake (terrestrial and sea), scorpion, spider, honey bee and wasp venoms hold promise as rich sources of chemotherapeutics against infectious pathogens. Interestingly, snake venom-derived synthetic peptide/snake cathelicidin not only has potent antimicrobial and wound-repair activity but is highly stable and safe. Such molecules are promising candidates for novel venom-based drugs against S. aureus infections. The structure of animal venom proteins/peptides (cysteine rich) consists of hydrophobic α-helices or β-sheets that produce lethal pores and membrane-damaging effects on bacteria. All these antimicrobial peptides are under early experimental or pre-clinical stages of development. It is therefore important to employ novel tools for the design and the development of new antibiotics from the untapped animal venoms of snake, scorpion, and spider for treating resistant pathogens. To date, snail venom toxins have shown little antibiotic potency against human pathogens. Copyright © 2017 Elsevier Inc. All rights reserved.

  2. Sustained release of radioprotective agents

    International Nuclear Information System (INIS)

    Shani, J.

    1980-11-01

    New pharmaceutical formulations for the sustained release into the G.I. tract of radioprotective agents have been developed by the authors. The experimental method initially consisted in the production of methylcellulose microcapsules. This method failed apparently because of the premature ''explosion'' of the microcapsules and the consequent premature release of massive amounts of the drug. A new method has been developed which consists in drying and pulverising cysteamine and cysteine preparations, mixing them in various proportions with stearic acid and ethylcellulose as carriers. The mixture is then compressed into cylindrical tablets at several pressure values and the leaching rate of the radioprotective agents is then measured by spectrophotometry. The relation between the concentration of the active drug and its rate of release, and the effect on the release rate of the pressure applied to the tablet during its formation were also investigated. Results indicating that the release rate was linearly related to the square root of ''t'' seem to be in agreement with what is predictable, according to Higuchi's equation, save for the very initial and terminal phases. A clear correlation was also established between the stearic acid/ethylcellulose ratios and the release of 20% cysteine, namely a marked decrease in the rate of cysteine release was observed with increasing concentrations of stearic acid. Finally, it was observed that a higher formation pressure results in quicker release of the drug

  3. Fatores relacionados à fidelidade ao tratamento do glaucoma: opiniões de pacientes de um hospital universitário Factors related to glaucoma treatment compliance: patients' opinions from a University Hospital

    Directory of Open Access Journals (Sweden)

    Lucas Ravagnani Silva

    2010-04-01

    Full Text Available OBJETIVO: Considerando que a não-adesão ao tratamento do glaucoma é um dos fatores de risco para a sua progressão, o objetivo do presente trabalho foi coletar informações sobre: 1 conhecimento e sentimentos dos pacientes sobre a doença; 2 a não-fidelidade ao tratamento e fatores relacionados; e 3 eventual influência da doença no estilo de vida participantes. MÉTODOS: Foram realizadas entrevistas, utilizando questionário semiestruturado, com 50 pacientes com glaucoma primário de ângulo aberto. A análise das respostas foi feita utilizando a técnica do ''Discurso do Sujeito Coletivo'' (DSC (qualitativa/quantitativa. RESULTADOS: Trinta e oito por cento dos pacientes não se consideraram bem informados sobre o glaucoma. A porcentagem de pacientes que declararam nãofidelidade ao tratamento foi de 20%. Os principais fatores relacionados foram: efeitos colaterais dos medicamentos (24%; falta de informação sobre a doença (22%; dificuldade de comunicação com o médico (14%; dificuldades na administração do tratamento (14%; falta de recursos financeiros para adquirir medicamentos (10%; atitudes e crenças (10%. Dezoito por cento dos participantes afirmaram que a doença alterou a qualidade de vida. CONCLUSÃO: Na população estudada, os fatores relacionados à não-adesão ao tratamento de glaucoma, abrangem desde o desconhecimento do que é a doença até atitudes, valores e crenças. Na sua maioria, podem causar a progressão da doença. A influência desses fatores pode ser diminuída com medidas educacionais, intervenções sobre comportamentos e atitudes, melhora da relação médico-paciente e suprimento de medicamentos.PURPOSE: Considering that noncompliance to glaucoma treatment is one of the risk factors associated with disease´s progression, the purpose of the present study was to evaluate: 1 knowledge and feelings about the disease; 2 self-reported noncompliance to treatment and related factors; and 3 influence of

  4. Preemptive mobile code protection using spy agents

    OpenAIRE

    Kalogridis, Georgios

    2011-01-01

    This thesis introduces 'spy agents' as a new security paradigm for evaluating trust in remote hosts in mobile code scenarios. In this security paradigm, a spy agent, i.e. a mobile agent which circulates amongst a number of remote hosts, can employ a variety of techniques in order to both appear 'normal' and suggest to a malicious host that it can 'misuse' the agent's data or code without being held accountable. A framework for the operation and deployment of such spy agents is described. ...

  5. Reversal agents in anaesthesia and critical care

    Directory of Open Access Journals (Sweden)

    Nibedita Pani

    2015-01-01

    Full Text Available Despite the advent of short and ultra-short acting drugs, an in-depth knowledge of the reversal agents used is a necessity for any anaesthesiologist. Reversal agents are defined as any drug used to reverse the effects of anaesthetics, narcotics or potentially toxic agents. The controversy on the routine reversal of neuromuscular blockade still exists. The advent of newer reversal agents like sugammadex have made the use of steroidal neuromuscular blockers like rocuronium feasible in rapid sequence induction situations. We made a review of the older reversal agents and those still under investigation for drugs that are regularly used in our anaesthesia practice.

  6. Building Multi-Agent Systems Using Jason

    DEFF Research Database (Denmark)

    Boss, Niklas Skamriis; Jensen, Andreas Schmidt; Villadsen, Jørgen

    2010-01-01

    We provide a detailed description of the Jason-DTU system, including the used methodology, tools as well as team strategy. We also discuss the experience gathered in the contest. In spring 2009 the course “Artificial Intelligence and Multi- Agent Systems” was held for the first time...... on the Technical University of Denmark (DTU). A part of this course was a short introduction to the multi-agent framework Jason, which is an interpreter for AgentSpeak, an agent-oriented programming language. As the final project in this course a solution to the Multi-Agent Programming Contest from 2007, the Gold...

  7. A Framework for Organization-Aware Agents

    DEFF Research Database (Denmark)

    Jensen, Andreas Schmidt; Dignum, Virginia; Villadsen, Jørgen

    2017-01-01

    boundaries and work towards the objectives of the organization. In this paper, we present the AORTA reasoning framework and show how it can be integrated into typical BDI-agents. We provide operational semantics that enables agents to make organizational decisions in order to coordinate and cooperate without......’ behavior space and describe the expected behavior of the agents. Assuming an open environment, where agents are developed independently of the Organizational structures, agents need to be able to reason about the structure, so that they can deliberate about their actions and act within the expected...

  8. Variations on agent-oriented programming

    Directory of Open Access Journals (Sweden)

    Dalia Baziukė

    2017-12-01

    Full Text Available Occurrence of the agent paradigm and its further applications have stimulated the emergence of new concepts and methodologies in computer science. Today terms like multi-agent system, agent-oriented methodology, and agent-oriented programming (AOP are widely used. The aim of this paper is to clarify the validity of usage of the terms AOP and AOP language. This is disclosed in two phases of an analysis process. Determining to which concepts, terms like agent, programming, object-oriented analysis and design, object-oriented programming, and agent-oriented analysis and design correspond is accomplished in the first phase. Analysis of several known agent system engineering methodologies in terms of key concepts used, final resulting artifacts, and their relationship with known programming paradigms and modern tools for agent system development is performed in the second phase. The research shows that in most cases in the final phase of agent system design and in the coding stage, the main artifact is an object, defined according to the rules of the object-oriented paradigm. Hence, we say that the computing society still does not have AOP owing to the lack of an AOP language. Thus, the term AOP is very often incorrectly assigned to agent system development frameworks that in most cases, transform agents into objects.DOI: 10.15181/csat.v5i1.1361

  9. An Agent Framework of Tourism Recommender System

    Directory of Open Access Journals (Sweden)

    Jia Zhi Yang

    2016-01-01

    Full Text Available This paper proposes the development of an Agent framework for tourism recommender system. The recommender system can be featured as an online web application which is capable of generating a personalized list of preference attractions for tourists. Traditional technologies of classical recommender system application domains, such as collaborative filtering, content-based filtering and content-based filtering are effectively adopted in the framework. In the framework they are constructed as Agents that can generate recommendations respectively. Recommender Agent can generate recommender information by integrating the recommendations of Content-based Agent, collaborative filtering-based Agent and constraint-based Agent. In order to make the performance more effective, linear combination method of data fusion is applied. User interface is provided by the tourist Agent in form of webpages and mobile app.

  10. Knowledge Management in Role Based Agents

    Science.gov (United States)

    Kır, Hüseyin; Ekinci, Erdem Eser; Dikenelli, Oguz

    In multi-agent system literature, the role concept is getting increasingly researched to provide an abstraction to scope beliefs, norms, goals of agents and to shape relationships of the agents in the organization. In this research, we propose a knowledgebase architecture to increase applicability of roles in MAS domain by drawing inspiration from the self concept in the role theory of sociology. The proposed knowledgebase architecture has granulated structure that is dynamically organized according to the agent's identification in a social environment. Thanks to this dynamic structure, agents are enabled to work on consistent knowledge in spite of inevitable conflicts between roles and the agent. The knowledgebase architecture is also implemented and incorporated into the SEAGENT multi-agent system development framework.

  11. Identificación de síntomas relacionados al Síndrome de Apnea Obstructiva del sueño en historias clínicas de pacientes con eventos vasculares agudos.

    Directory of Open Access Journals (Sweden)

    Darwin Roger VIZCARRA ESCOBAR

    2006-07-01

    Full Text Available El síndrome de apnea obstructiva del sueño (SAOS se caracteriza por ronquidos, pausas en la respiración y somnolencia diurna excesiva entre los síntomas más relevantes. Se ha demostrado una asociación con incremento de riesgo vascular en pacientes con SAOS. Objetivo: Evaluar si el personal médico busca síntomas relacionados al SAOS en pacientes con un cuadro cerebrovascular o síndrome coronario agudo, en los servicios de Medicina del Hospital Nacional Cayetano Heredia en Lima, Perú, desde septiembre del 2003 hasta septiembre del 2004. Materiales y métodos: Se planteó un estudio observacional retrospectivo. Se revisaron historias clínicas de 291 pacientes con diagnóstico al ingreso de accidente cerebrovascular, ataque isquémico transitorio o síndrome coronario agudo, buscando información sobre síntomas relacionados al SAOS, incluyendo evaluación por especialidades y epicrisis, detallando los evaluadores que recogieron los datos. Resultados: En la evaluación de 291 pacientes participaron 1122 evaluadores, 0,98 % de ellos consignó descartar el SAOS, que correspondió a 9 pacientes. En sólo 1 paciente se sugirió realizar un estudio de polisomnografía para corroborar el diagnóstico, sin ofrecerse ninguna opción terapéutica. Del total de pacientes, en el 6,87 % se indagó por ronquidos durante el sueño, 28,52 % por somnolencia y 0,68 % por episodios de apneas durante el sueño. Conclusiones: No se realiza una adecuada búsqueda del SAOS en pacientes con un evento cardiovascular o cerebrovascular agudo. En los pocos pacientes en los que se sospecha esta patología no existe seguimiento clínico ni tampoco se ofrece opción diagnóstica ni terapéutica alguna. (Rev Med Hered 2006;17:148-155.

  12. Potencial evocado auditivo tardio relacionado a eventos (P300 na síndrome de Down Late auditory event-related evoked potential (P300 in Down's syndrome patients

    Directory of Open Access Journals (Sweden)

    Carla Patrícia Hernandez Alves Ribeiro César

    2010-04-01

    Full Text Available A síndrome de Down é causada pela trissomia do cromossomo 21 e está associada com alteração do processamento auditivo, distúrbio de aprendizagem e, provavelmente, início precoce de Doença de Alzheimer. OBJETIVO: Avaliar as latências e amplitudes do potencial evocado auditivo tardio relacionado a eventos (P300 e suas alterações em indivíduos jovens adultos com síndrome de Down. MATERIAL E MÉTODO: Estudo de caso prospectivo. Latências e amplitudes do P300 foram avaliadas em 17 indivíduos com síndrome de Down e 34 indivíduos sadios. RESULTADOS: Foram identificadas latências do P300 (N1, P2, N2 e P3 prolongadas e amplitude N2 - P3 diminuída nos indivíduos com síndrome de Down quando comparados ao grupo controle. CONCLUSÃO: Em indivíduos jovens adultos com síndrome de Down ocorre aumento das latências N1, P2, N2 e P3, e diminuição significativa da amplitude N2-P3 do potencial evocado auditivo tardio relacionado a eventos (P300, sugerindo prejuízo da integração da área de associação auditiva com as áreas corticais e subcorticais do sistema nervoso central.Down syndrome is caused by a trisomy of chromosome 21 and is associated with central auditory processing deficit, learning disability and, probably, early-onset Alzheimer's disease. AIM: to evaluate the latencies and amplitudes of evoked late auditory potential related to P300 events and their changes in young adults with Down's syndrome. MATERIALS AND METHODS: Prospective case study. P300 test latency and amplitudes were evaluated in 17 individuals with Down's syndrome and 34 healthy individuals. RESULTS The P300 latency (N1, P2, N2 and P3 was longer and the N2-P3 amplitude was lower in individuals with Down syndrome when compared to those in the control group. CONCLUSION: In young adults with Down syndrome, N1, P2, N2 and P3 latencies of late auditory evoked potential related to P300 events were prolonged, and N2 - P3 amplitudes were significantly reduced

  13. Fatores relacionados à suscetibilidade da erosão em entressulcos sob condições de uso e manejo do solo Factors influencing susceptibility to interrill soil erosion under different land use and management conditions

    Directory of Open Access Journals (Sweden)

    Flávio P. de Oliveira

    2012-04-01

    Full Text Available Neste trabalho foram avaliados fatores relacionados com a suscetibilidade a erosão em entressulcos de um Neossolo Litólico submetido a diferentes intensidades de uso e manejo do solo. O experimento foi realizado em condições de laboratório, utilizando-se amostras deformadas de solo colocadas em parcelas experimentais (0,23 m2 e declividade de 0,09 m m-1. O delineamento experimental utilizado foi em blocos casualizados, em que foram aplicadas chuvas simuladas com intensidade de 100 mm h-1 para os seguintes tratamentos: (I solo cultivado com fumo sob preparo convencional (PC; (II solo cultivado com fumo sob plantio direto (PD e (III solo sob mata nativa (MN. Para avaliar a suscetibilidade a erosão em entressulcos utilizaram-se índices referentes à relação energia cinética total (chuva e escoamento sobre perda de solo, taxa média de desagregação e índice de estabilidade de agregados, cujos resultados mostraram que os fatores relacionados com a suscetibilidade a erosão em entressulcos estão associados não apenas com características e propriedades que conferem coesividade ao solo, mas, também, com condicionantes que afetam a hidráulica do escoamento e, consequentemente, a fase de transporte dos sedimentos.This study evaluated factors related to the suscetibility to the interrill soil erosion in an Entisol subjected to different degrees of soil use and management. The experiment was carried out under laboratory conditions using samples collected from tobacco fields and disturbed soil placed in erosion pans measuring (0.23 m2 with a slope of 0.09 m m-1. The experimental design was in randomized blocks. Simulated rainfall intensity of 100 mm h-1 was applied to the following treatments: (I conventionally tilled soil; (II no-till soil; and (III native forest soil. Total kinetic energy (rainfall and runoff to soil loss, average rate of detachment, and aggregate stability indexes were used to assess susceptibility to interrill erosion

  14. Factores relacionados con la deserción en el primer y segundo año de estudio en la carrera de Enseñanza de la Matemática de la Universidad Nacional de Costa Rica

    Directory of Open Access Journals (Sweden)

    Paola Michelle Pascua-Cantarero

    2016-01-01

    Full Text Available Recibido 21 de mayo de 2014 • Corregido 15 de setiembre de 2015 • Aceptado 3 de noviembre de 2015El presente artículo da a conocer detalles sobresalientes obtenidos al realizar una investigación que tuvo entre sus objetivos determinar los factores relacionados con deserción de estudiantes, quienes ingresaron en los años 2007, 2008, 2009, durante el primer y segundo año del Bachillerato y Licenciatura en Enseñanza de la Matemática (carrera de Enseñanza de la Matemática de la Universidad Nacional de Costa Rica. La citada investigación respondió a un estudio mixto, con una fase cuantitativa de carácter descriptivo y una parte cualitativa con un diseño fenomenológico; su fundamentación teórica se basó en investigaciones sobre deserción universitaria en distintas regiones y la teoría de personas expertas como Tinto y Spady con respecto a las causas de esta problemática. Para  el  análisis de la información se empleó una base de datos proporcionada por el Departamento de Registro de la UNA y una entrevista telefónica semi-estructurada aplicada a estudiantes que desertaron de la carrera en forma definitiva. La población en la fase cuantitativa estuvo constituida por la totalidad de participantes que ingresaron en los años 2007, 2008 y 2009 y que desertaron en el primer y segundo año de la carrera. El grupo en estudio para la etapa cualitativa estuvo compuesto por quince informantes pertenecientes a las diferentes cohortes 2007, 2008 y 2009 y quienes desertaron en el primer y segundo año de la carrera. Los resultados mostraron que el fenómeno de  deserción en el primer año tuvo factores similares a la que se produjo en el segundo año de la carrera de Enseñanza de la Matemática. Las conclusiones indican que entre los diversos factores relacionados con la deserción en el primer y segundo año de las cohortes 2007, 2008 y 2009 sobresalieron las expectativas no satisfechas y la falta de integración académica y

  15. ESTADO DEL ARTE SOBRE LOS TRABAJOS PRÁCTICOS EN LA ENSEÑANZA DE LA BIOLOGÍA ABORDADOS EN PUBLICACIONES (2004-2008: RESULTADOS RELACIONADOS CON LAS FINALIDADES

    Directory of Open Access Journals (Sweden)

    Mónica Alexandra Correa

    2014-05-01

    Full Text Available Presentamos la investigación ESTADO DEL ARTE SOBRE LOS TRABAJOS PRÁCTICOS EN LA ENSEÑANZA DE LA BIOLOGÍA (2004-2008: UN APORTE A LA FORMACIÓN DOCENTE, cuyo objetivo se centró en caracterizar los Trabajos Prácticos en la Enseñanza de la Biología a partir de 216 publicaciones de 16 revistas especializadas realizadas durante  el periodo (2004-2008 y realizar un análisis de los aportes a la formación docente derivados de esto. La metodología que orientó la caracterización corresponde a un enfoque cualitativo interpretativo-hermenéutico, la investigación documental, y la  modalidad de estado del arte. Para la sistematización de la información se empleó como instrumento el RAE, cuyo diseño se basó en los criterios que se han acogido para la caracterización de la Didáctica de las Ciencias como campo de conocimiento y los de un sistema de categorías para el análisis de Trabajos Prácticos en la enseñanza de la Biología: Problema, Composición de equipo de trabajo, Sección de la revista, Autores, Temáticas Biológicas, Tipo de trabajo, Población objeto de estudio, Metodología, Naturaleza del TP (Tipo de TP, imagen de Práctica, relación T-P, clase de TP, Finalidades, Metodología del TP, Evaluación, Relación con aspectos epistemológicos y Aspectos relacionados con la formación docente. Para efectos de esta ponencia mostramos exclusivamente los resultados relacionados con  las finalidades de los trabajos prácticos, quienes mayoritariamente propenden por finalidades que abarcan simultáneamente aspectos tanto Conceptuales y Procedimentales y aquellas que abordan exclusivamente elementos Conceptuales

  16. Aspectos da biologia floral relacionados à produção de frutos de pinha (Annona squamosa L. = Floral biology aspects related to the production of sugar apple (Annona squamosa L. fruits

    Directory of Open Access Journals (Sweden)

    Generosa Sousa Ribeiro

    2007-10-01

    Full Text Available O Estado da Bahia é o maior produtor de pinha no Brasil, apresentando uma área produtiva que ultrapassa os 5.400 ha. Para a boa produtividade e qualidade dos frutos, estudos relacionados à polinização são fundamentais e fornecem dados que subsidiamprogramas de fitomelhoramento. Este trabalho objetivou o estudo de aspectos da biologia floral relacionados à produção de frutos de pinha. O estudo foi realizado em dois pomares comerciais da região Sudoeste do Estado da Bahia, compreendendo: observação dodesenvolvimento floral; coleta e armazenamento dos grãos de pólen em duas condições de temperatura; análise da viabilidade e germinabilidade do pólen e polinização manual em cinco horários após a coleta do pólen. O delineamento experimental utilizado foi ointeiramente casualizado. Os resultados demonstraram que a antese ocorre às 5 horas da manhã nas condições edafoclimáticas avaliadas; os grãos de pólen permanecem viáveis por até 12 horas, permitindo a produção de frutos com peso comercial.The State of Bahia is the largest producer of sugar apple inBrazil, reaching a production area of 5,400 ha. In order to ensure good fruit productivity and quality, studies related to pollination are essential, and provide data that subsidize phyto-improvement programs. The objective of this work was the study of floral biologyaspects linked to the production of sugar apple. The study was carried out in two commercial orchards in the Southwestern region of the State of Bahia, Brazil, comprising the following steps: observation of the morphological characteristics of the flowers;collection and storage of pollen grains under two temperature conditions; analysis of the viability and pollen germinability; and manual pollination at five different times after collecting the pollen grains. The experimental design used was entirely randomized blocks. The results provided by the regression analysis and by the variance analysis enabled the

  17. ESTADO DEL ARTE SOBRE LOS TRABAJOS PRÁCTICOS EN LA ENSEÑANZA DE LA BIOLOGÍA ABORDADOS EN PUBLICACIONES (2004-2006: RESULTADOS RELACIONADOS CON LA IMAGEN DE PRÁCTICA (Pag: 117-135

    Directory of Open Access Journals (Sweden)

    Monica Alexandra Correa

    2012-12-01

    Full Text Available Presentamos la investigación Estado del arte sobre los trabajos prácticos en la enseñanza de la Biología (2004-2008: un aporte a la formación docente, cuyo objetivo se centró en caracterizar los trabajos prácticos en la enseñanza de la biología a partir de 216 publicaciones encontradas en 16 revistas especializadas realizadas durante el periodo (2004-2008 y hacer un análisis de los aportes a la formación docente derivados de esto. La metodología que orientó la caracterización corresponde a un enfoque cualitativo desde un posicionamiento epistemológico interpretativo-hermenéutico, el método de la investigación documental, y la modalidad de estado del arte. Para la sistematización de la información se empleó el instrumento RAE, cuyo diseño se basó en los criterios que se han acogido para la caracterización de la didáctica de las ciencias como campo de conocimiento y los de un sistema de categorías para el análisis de trabajos prácticos en la enseñanza de la Biología: problema, composición de equipo de trabajo, sección de la revista, autores, temáticas biológicas, tipo de trabajo, población objeto de estudio, metodología, naturaleza del TP (tipo de TP, imagen de práctica, relación TP, clase de TP, finalidades, metodología del TP, evaluación, relación con aspectos epistemológicos y elementos relacionados con la formación docente. Para efectos de este artículo mostramos exclusivamente los resultados relacionados con la imagen de práctica. Se encuentra que existe una tendencia mayoritaria en considerar las prácticas como alternativa a aspectos específicos de enseñanza aprendizaje, lo cual implica reconocerlas como un componente fundamental del conocimiento didáctico del contenido biológico en tanto resaltan las diferentes potencialidades de esta estrategia para abarcar diversos aspectos la enseñanza–aprendizaje.

  18. 10th International Conference on Practical Applications of Agents and Multi-Agent Systems

    CERN Document Server

    Pérez, Javier; Golinska, Paulina; Giroux, Sylvain; Corchuelo, Rafael; Trends in Practical Applications of Agents and Multiagent Systems

    2012-01-01

    PAAMS, the International Conference on Practical Applications of Agents and Multi-Agent Systems is an evolution of the International Workshop on Practical Applications of Agents and Multi-Agent Systems. PAAMS is an international yearly tribune to present, to discuss, and to disseminate the latest developments and the most important outcomes related to real-world applications. It provides a unique opportunity to bring multi-disciplinary experts, academics and practitioners together to exchange their experience in the development of Agents and Multi-Agent Systems.   This volume presents the papers that have been accepted for the 2012 in the workshops: Workshop on Agents for Ambient Assisted Living, Workshop on Agent-Based Solutions for Manufacturing and Supply Chain and Workshop on Agents and Multi-agent systems for Enterprise Integration.

  19. Survey of agent for intelligent information retrieval; Chiteki kensaku no tame no agent no chosa

    Energy Technology Data Exchange (ETDEWEB)

    Yazawa, T [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1996-09-01

    Development of agent systems has been surveyed, to classify and arrange characteristic functions of the agents, and to grasp the realization situation of these agents in their development. In addition, prospective functions of information retrieval systems using the agents at maximum and functions to be developed among these in the future are clarified. The agents are characterized by the expression function, communication function, planning function, adaptive function, and learning function. The agents are desired to be classified into interface agents whose works are to respond to individual workers, coordinator agents which conduct works with high pervasion, such as assignment of works and their control, and task agents which conduct specialized works for individual examples. Thus, design and configuration of the agent system, and improvement and expansion of system functions can be effectively and easily conducted. 52 refs., 5 figs., 3 tabs.

  20. Beliefs and taboos related to the care after delivery: their meaning for a women group Creencias y tabúes relacionados al cuidado en el postparto: el significado para un grupo de mujeres Crenças e tabus relacionados ao cuidado no pós-parto: o significado para um grupo de mulheres

    Directory of Open Access Journals (Sweden)

    Juliana Stefanello

    2008-01-01

    Full Text Available OBJECTIVE: To identify the meaning of care in the puerperal phase, within the family context. METHODS: It is a qualitative research, developed with 12 puerperal women and their relatives, who helped them with care after delivery. Data collection was performed by means of semi-structured interviews. The data were analyzed based on the technique of thematic content analysis. RESULTS: In the postnatal period, care needs to be doubled, as it affects mother and child, besides the body vulnerability, which is open to diseases. In articulation with these ideas, the recommendations and restrictions as components of postpartum care are justified. CONCLUSION: Care in the puerperal phase is a feminine practice filled with beliefs and taboos that grants women with power of agents in this process, since she bears the knowledge of many generations at the same time that they act as subjects and reinvent the previously established systems, constructing themselves as mothers.OBJETIVO: Identificar los significados del cuidado en la fase puerperal en el contexto familiar. MÉTODOS: Se trata de una investigación cualitativa, desarrollada con 12 puérperas y respectivos familiares (11 que las auxiliaban en el cuidado del postparto. Se utilizó entrevistas semi-estructuradas. Los datos fueron analizados con base en la técnica de análisis de contenido, modalidad temática. RESULTADOS: En el puerperio es preciso tener un cuidado extremo, por tener efectos en la madre y el hijo además de la vulnerabilidad del cuerpo, susceptible a enfermedades. Articuladas a estas ideas es que se justifican las recomendaciones y restricciones como componentes del cuidado en el postparto. CONCLUSIÓN: El cuidado en la fase puerperal es una práctica femenina permeada de creencias y tabúes, que otorga a las mujeres un poder de agentes en ese proceso, ya que traen consigo conocimientos de muchas generaciones a la vez que actúan como sujetos y reinventan sistemas establecidos

  1. Bioprotective agents in safety control

    Directory of Open Access Journals (Sweden)

    Dimitrijević-Branković Suzana I.

    2003-01-01

    Full Text Available Food poisoning is the one of the main health hazards even today. More than 200 known diseases are transmitted through food. The causes of foodborne illness include viruses, bacteria, parasites, toxins, metals, and prions and the symptoms of foodborne illness range from mild gastroenteritis to life-threatening neurological, hepatic and renal syndromes.The prevention of food poisonings represents very serious task for food manufacturers. Beside food control according to the concept "from the farm to the table" there is increased need for the development of new technology for longer shelf lifes of food. Food fermented by lactic acid bacteria (LAB and traditionally considered to be safe. There are many substances produced by LAB that affect the shelf life of fermented food, by active suppression of poisoning microorganisms growth. Because of that, the LAB is recently considered as bioprotective agents that have important role in food safety.

  2. Blasting agents and initiation systems

    Energy Technology Data Exchange (ETDEWEB)

    Fiscor, S.

    2000-01-01

    Although blasting differs between and within each industry, as a whole, the mines and quarries are making a shift from a purely ammonium nitrate/fuel oil (ANFO) mixture to a blend of emulsion and ANFO on a straight emulsion. Non-electric (shock tube) initiation systems have provided a viable alternative to the electric detonator (blasting cap). Explosives manufacturers are seeing their roles changes to being blasting contractors or consultants rather than just suppliers. The article discusses these trends and gives examples of typical blasting techniques and amounts of blasting agent used at large USA surface coal mines. Electric caps are still used in blasting underground coal. The Ensign Bickford Co. (EBCo) is developing electronic detonators and has been field testing an electronic initiator, the DIGIDET detonator, for the last four years. When commercially available, electronic detonators will be accurate but will come with a hefty price tag. 2 photos.

  3. DNA minor groove alkylating agents.

    Science.gov (United States)

    Denny, W A

    2001-04-01

    Recent work on a number of different classes of anticancer agents that alkylate DNA in the minor groove is reviewed. There has been much work with nitrogen mustards, where attachment of the mustard unit to carrier molecules can change the normal patterns of both regio- and sequence-selectivity, from reaction primarily at most guanine N7 sites in the major groove to a few adenine N3 sites at the 3'-end of poly(A/T) sequences in the minor groove. Carrier molecules discussed for mustards are intercalators, polypyrroles, polyimidazoles, bis(benzimidazoles), polybenzamides and anilinoquinolinium salts. In contrast, similar targeting of pyrrolizidine alkylators by a variety of carriers has little effect of their patterns of alkylation (at the 2-amino group of guanine). Recent work on the pyrrolobenzodiazepine and cyclopropaindolone classes of natural product minor groove binders is also reviewed.

  4. Toxic agents causing cerebellar ataxias.

    Science.gov (United States)

    Manto, Mario

    2012-01-01

    The cerebellum is particularly vulnerable to intoxication and poisoning, especially so the cerebellar cortex and Purkinje neurons. In humans, the most common cause of a toxic lesion to the cerebellar circuitry is alcohol related, but the cerebellum is also a main target of drug exposure (such as anticonvulsants, antineoplastics, lithium salts, calcineurin inhibitors), drug abuse and addiction (such as cocaine, heroin, phencyclidine), and environmental toxins (such as mercury, lead, manganese, toluene/benzene derivatives). Although data for the prevalence and incidence of cerebellar lesions related to intoxication and poisoning are still unknown in many cases, clinicians should keep in mind the list of agents that may cause cerebellar deficits, since toxin-induced cerebellar ataxias are not rare in daily practice. Moreover, the patient's status may require immediate therapies when the intoxication is life-threatening. 2012 Elsevier B.V. All rights reserved.

  5. Il libro agente della socializzazione

    Directory of Open Access Journals (Sweden)

    Daniela Sideri

    2017-06-01

    Full Text Available Il saggio indaga il ruolo del libro come agente di socializzazione, con particolare riferimento al pubblico dei lettori ragazzi e bambini e alle specifiche funzioni formative della “lettura della letteratura” in età pre-scolare e scolare fino ai 14 anni. La ricerca di matrice socio-culturale si è occupata per lo più del libro in qualità di prodotto eminentemente sociale (sociologia della letteratura, contenitore di testi significanti (semiotica, e bene di consumo dell’industria culturale (cultural studies: lo studio proposto richiama le conclusioni fondamentali di decenni di studi intorno al libro, con l’intento di rintracciare i criteri adeguati (tema, target, identità visiva, funzione pratica e utopica a guidare una classificazione dei generi 0-14 che evidenzi il valore socializzante di ciascuno, proponendo così una originale tipologia, che giustifica l’inserimento del libro tra quelle definite “agenzie testuali” della socializzazione.

  6. Children as digital rights agents

    DEFF Research Database (Denmark)

    Stald, Gitte Bang

    2016-01-01

    This paper looks at children’s involvement and contribution to internet safety policy. In many respects, the research perspective on children and young people has also seen a shift towards the child as agent, as citizen (Livingstone 2002, 2009; Dahlgren 2007). With increasing attention given...... to children’s communication rights there is an acknowledgement that children’s voices should be heard in all matters that affect them (Hamelink 2008). We still, however, primarily discuss how adults could and should take responsibility in guarding children and young people from risk and harm, and what...... the role of the “adult world” is. We need to focus more on the active role that children and adolescents play, according to age, skills and various capacities, in identifying, reflecting upon and acting according to opportunities and challenges in relation to digital media and digital rights (Hartman et al...

  7. Sustainable Society Formed by Unselfish Agents

    Science.gov (United States)

    Kikuchi, Toshiko

    It has been pointed out that if the social configuration of the three relations (market, communal and obligatory relations) is not balanced, a market based society as a total system fails. Using multi-agent simulations, this paper shows that a sustainable society is formed when all three relations are integrated and function respectively. When agent trades are based on the market mechanism (i.e., agents act in their own interest and thus only market relations exist), weak agents who cannot perform transactions die. If a compulsory tax is imposed to enable all weak agents to survive (i.e., obligatory relations exist), then the fiscal deficit increases. On the other hand, if agents who have excess income undertake the unselfish action of distributing their surplus to the weak agents (i.e., communal relations exist), then trade volume increases. It is shown that the existence of unselfish agents is necessary for the realization of a sustainable society. However, the survival of all agents is difficult in a communal society. In an artificial society, for all agents survive and fiscal balance to be maintained, all three social relations need to be fully integrated. These results show that adjusting the balance of the three social relations well lead to the realization of a sustainable society.

  8. SOME FACTORS RELATED WITH MICROBIOLOGICAL QUALITY OF RAW MILK OBTAINED IN FARMS AROUND GOIÂNIA (GO ESTUDO DE ALGUNS FATORES RELACIONADOS COM A QUALIDADE MICROBIOLÓGICA DO LEITE CRU OBTIDO NA FONTE DE PRODUÇÃO

    Directory of Open Access Journals (Sweden)

    José Carlos Seraphin

    2007-09-01

    Full Text Available

    The aim of this work is the evaluation of some factors that contribute to the microbiological and hygienic quality of raw milk, obtained at production level, placing emphasis to verify some important variables performance in raw production, like: spoil or free tail, pen floor types, strainers type utilized, etc, in relation to a group of present microorganisms; the counting of viable mesophilic aerobes, thermodurics and the most probable number of total coliform and the lactofiltration test.

    O presente trabalho objetivou estudar alguns fatores relacionados com a qualidade microbiológica e higiênica do leite cru obtido na fonte da produção, tendo a preocupação de verificar o desempenho de algumas variáveis importantes na produção do leite “in natura” tais como: cauda solta ou presa, tipo de piso dos currais, tipo de coador empregado etc., em relação a grupos microbianos presentes como a contagem de microorganismos termodúricos, número mais provável de coliformes totais e da prova da lactofiltração.

  9. Process for preparation of MR contrast agents

    DEFF Research Database (Denmark)

    2002-01-01

    The present invention provides a process for the preparation of an MR contrast agent, said process comprising: i) obtaining a solution in a solvent of a hydrogenatable, unsaturated substrate compound and a catalyst for the hydrogenation of said substrate compound; ii) introducing said solution...... in droplet form into a chamber containing hydrogen gas (H2) enriched in para-hydrogen (p-1H2) and/or ortho-deuterium (o-2H2) whereby to hydrogenate said substrate to form a hydrogenated imaging agent; iii) optionally subjecting said hydrogenated imaging agent to a magnetic field having a field strength below...... earth's ambient field strength; iv) optionally dissolving said imaging agent in an aqueous medium; v) optionally separating said catalyst from the solution of said imaging agent in said aqueous medium; vi) optionally separating said solvent from the solution of said imaging agent in said aqueous medium...

  10. An Important Chemical Weapon Group: Nerve Agents

    Directory of Open Access Journals (Sweden)

    Hakan Yaren

    2007-12-01

    Full Text Available As a result of developing modern chemistry, nerve agents, which are one of the most important group of efficient chemical warfare agents, were developed just before Second World War. They generate toxic and clinical effects via inhibiting acetylcholinesterase irreversibly and causing excessive amounts of acetylcholine at cholinergic synapses in the body. Clinical symptoms are occurred as a result of affected muscarinic (stimulation of secretuar glands, miosis, breathing problems etc., nicotinic (stimulation of skeletal muscles, paralyse, tremors etc. and central nerve system (convulsions, loss of consciousness, coma etc. areas. In case of a nerve agent exposure, treatment includes the steps of ventilation, decontamination, antidotal treatment (atropine, oximes, diazepam and pyridostigmine bromide and supportive theraphy. Because of arising possibility of using chemical warfare agents due to current conjuncture of the world, medical staff should know about nerve agents, their effects and how to treat the casualties exposured to nerve agents. [TAF Prev Med Bull 2007; 6(6.000: 491-500

  11. An Important Chemical Weapon Group: Nerve Agents

    Directory of Open Access Journals (Sweden)

    Hakan Yaren

    2007-12-01

    Full Text Available As a result of developing modern chemistry, nerve agents, which are one of the most important group of efficient chemical warfare agents, were developed just before Second World War. They generate toxic and clinical effects via inhibiting acetylcholinesterase irreversibly and causing excessive amounts of acetylcholine at cholinergic synapses in the body. Clinical symptoms are occurred as a result of affected muscarinic (stimulation of secretuar glands, miosis, breathing problems etc., nicotinic (stimulation of skeletal muscles, paralyse, tremors etc. and central nerve system (convulsions, loss of consciousness, coma etc. areas. In case of a nerve agent exposure, treatment includes the steps of ventilation, decontamination, antidotal treatment (atropine, oximes, diazepam and pyridostigmine bromide and supportive theraphy. Because of arising possibility of using chemical warfare agents due to current conjuncture of the world, medical staff should know about nerve agents, their effects and how to treat the casualties exposured to nerve agents. [TAF Prev Med Bull. 2007; 6(6: 491-500

  12. Persuasive Conversational Agent with Persuasion Tactics

    Science.gov (United States)

    Narita, Tatsuya; Kitamura, Yasuhiko

    Persuasive conversational agents persuade people to change their attitudes or behaviors through conversation, and are expected to be applied as virtual sales clerks in e-shopping sites. As an approach to create such an agent, we have developed a learning agent with the Wizard of Oz method in which a person called Wizard talks to the user pretending to be the agent. The agent observes the conversations between the Wizard and the user, and learns how to persuade people. In this method, the Wizard has to reply to most of the user's inputs at the beginning, but the burden gradually falls because the agent learns how to reply as the conversation model grows.

  13. Pinning synchronization of a mobile agent network

    International Nuclear Information System (INIS)

    Wang, Lei; Sun, You-xian

    2009-01-01

    We investigate the problem of controlling a group of mobile agents in a plane in order to move them towards a desired orbit via pinning control, in which each agent is associated with a chaotic oscillator coupled with those of neighboring agents, and the pinning strategy is to have the common linear feedback acting on a small fraction of agents by random selection. We explore the effects of the pinning probability, feedback gains and agent density in the pinning synchronization of a mobile agent network under a fast-switching constraint, and perform numerical simulations for validation. In particular, we show that there exists a critical pinning density for network synchronization with an unbounded region: above the threshold, the dynamical network can be controlled by pinning; below it, anarchy prevails. And for the network with a single bounded synchronization region, pinning control has little effect as regards enhancing network synchronizability

  14. Multi-Agent Information Classification Using Dynamic Acquaintance Lists.

    Science.gov (United States)

    Mukhopadhyay, Snehasis; Peng, Shengquan; Raje, Rajeev; Palakal, Mathew; Mostafa, Javed

    2003-01-01

    Discussion of automated information services focuses on information classification and collaborative agents, i.e. intelligent computer programs. Highlights include multi-agent systems; distributed artificial intelligence; thesauri; document representation and classification; agent modeling; acquaintances, or remote agents discovered through…

  15. Trabalho em saúde: retrato dos agentes comunitários de saúde da região Nordeste do Brasil

    Directory of Open Access Journals (Sweden)

    Paloma Ribeiro Pires Simas

    Full Text Available Resumo O objetivo deste estudo consistiu em caracterizar o perfil e os aspectos relacionados à gestão do trabalho dos agentes comunitários de saúde na Região Nordeste do Brasil. Trata-se de um estudo transversal, que contemplou 535 agentes comunitários distribuídos em 107 unidades básicas de saúde da Região Nordeste do Brasil. Os dados foram extraídos de oito blocos de questões referentes à Percepção dos Agentes Comunitários de Saúde sobre aspectos: sociodemográficos, econômico e político; mecanismos de contratação e remuneração; valorização do trabalhador, condições de trabalho e processos de formação dos agentes. Os resultados apontam que a proporção de agentes comunitários contratados pela administração direta na Região Nordeste é predominante. A forma de inserção dos agentes comunitários nos serviços de saúde se deu por concurso seguido de seleção pública. A administração direta é a principal forma de contratação, no entanto, novas modalidades, como as fundações de direito público e privado, organizações sociais e consórcios intermunicipais, constituem alternativas adotadas pelos gestores, produzindo um conjunto de fragilidades provocadas pela flexibilização das relações de trabalho.

  16. Modeling culture in intelligent virtual agents

    OpenAIRE

    Mascarenhas, S.; Degens, N.; Paiva, A.; Prada, R.; Hofstede, G.J.; Beulens, A.J.M.; Aylett, R.

    2016-01-01

    This work addresses the challenge of creating virtual agents that are able to portray culturally appropriate behavior when interacting with other agents or humans. Because culture influences how people perceive their social reality it is important to have agent models that explicitly consider social elements, such as existing relational factors. We addressed this necessity by integrating culture into a novel model for simulating human social behavior. With this model, we operationalized a par...

  17. Glutamic acid as anticancer agent: An overview

    OpenAIRE

    Dutta, Satyajit; Ray, Supratim; Nagarajan, K.

    2013-01-01

    The objective of the article is to highlight various roles of glutamic acid like endogenic anticancer agent, conjugates to anticancer agents, and derivatives of glutamic acid as possible anticancer agents. Besides these emphases are given especially for two endogenous derivatives of glutamic acid such as glutamine and glutamate. Glutamine is a derivative of glutamic acid and is formed in the body from glutamic acid and ammonia in an energy requiring reaction catalyzed by glutamine synthase. I...

  18. Emotional Storytelling using Virtual and Robotic Agents

    OpenAIRE

    Costa, Sandra; Brunete, Alberto; Bae, Byung-Chull; Mavridis, Nikolaos

    2016-01-01

    In order to create effective storytelling agents three fundamental questions must be answered: first, is a physically embodied agent preferable to a virtual agent or a voice-only narration? Second, does a human voice have an advantage over a synthesised voice? Third, how should the emotional trajectory of the different characters in a story be related to a storyteller's facial expressions during storytelling time, and how does this correlate with the apparent emotions on the faces of the list...

  19. Intelligent Agents in E-Commerce

    Directory of Open Access Journals (Sweden)

    Valentin LITOIU

    2006-01-01

    Full Text Available This paper emphasizes the importance of intelligent agents in e-commerce, with a particular focus on the B2C and B2B context. From the consumer buying behaviour perspective, agents can be used to assist the following stages: need identification, product brokering, buyer coalition formation, merchant brokering and negotiation. Related to B2B commerce, intelligent agents are involved in partnership formation, brokering and negotiation.

  20. Intelligent Agents in E-Commerce

    OpenAIRE

    Valentin LITOIU; Amelia BADICA; Cristian ETEGAN

    2006-01-01

    This paper emphasizes the importance of intelligent agents in e-commerce, with a particular focus on the B2C and B2B context. From the consumer buying behaviour perspective, agents can be used to assist the following stages: need identification, product brokering, buyer coalition formation, merchant brokering and negotiation. Related to B2B commerce, intelligent agents are involved in partnership formation, brokering and negotiation.

  1. Three essays in agent-based macroeconomics

    OpenAIRE

    Canzian, Giulia

    2009-01-01

    The dissertation is aimed at offering an insight into the agent-based methodology and its possible application to the macroeconomic analysis. Relying on this methodology, I deal with three different issues concerning heterogeneity of economic agents, bounded rationality and interaction. Specifically, the first chapter is devoted to describe the distinctive characteristics of agent-based economics and its advantages-disadvantages. In the second chapter I propose a credit market framework c...

  2. Ultrasound contrast agents: an overview.

    Science.gov (United States)

    Cosgrove, David

    2006-12-01

    With the introduction of microbubble contrast agents, diagnostic ultrasound has entered a new era that allows the dynamic detection of tissue flow of both the macro and microvasculature. Underpinning this development is the fact that gases are compressible, and thus the microbubbles expand and contract in the alternating pressure waves of the ultrasound beam, while tissue is almost incompressible. Special software using multiple pulse sequences separates these signals from those of tissue and displays them as an overlay or on a split screen. This can be done at low acoustic pressures (MIdeveloped for myocardial perfusion. In radiology, the most important application is the liver, especially for focal disease. The approach parallels that of dynamic CT or MRI but ultrasound has the advantages of high spatial and temporal resolution. Thus, small lesions that can be indeterminate on CT can often be studied with ultrasound, and situations where the flow is very rapid (e.g., focal nodular hyperplasia where the first few seconds of arterial perfusion may be critical to making the diagnosis) are readily studied. Microbubbles linger in the extensive sinusoidal space of normal liver for several minutes whereas they wash out rapidly from metastases, which have a low vascular volume and thus appear as filling defects. The method has been shown to be as sensitive as three-phase CT. Microbubbles have clinical uses in many other applications where knowledge of the microcirculation is important (the macrocirculation can usually be assessed adequately using conventional Doppler though there are a few important situations where the signal boost given by microbubbles is useful, e.g., transcranial Doppler for evaluating vasospasm after subarachnoid haemorrhage). An important situation where demonstrating tissue devitalisation is important is in interstitial ablation of focal liver lesions: using microbubble contrast agents at the end of a procedure allows immediate evaluation of the

  3. A Multi-Agent Environment for Negotiation

    Science.gov (United States)

    Hindriks, Koen V.; Jonker, Catholijn M.; Tykhonov, Dmytro

    In this chapter we introduce the System for Analysis of Multi-Issue Negotiation (SAMIN). SAMIN offers a negotiation environment that supports and facilitates the setup of various negotiation setups. The environment has been designed to analyse negotiation processes between human negotiators, between human and software agents, and between software agents. It offers a range of different agents, different domains, and other options useful to define a negotiation setup. The environment has been used to test and evaluate a range of negotiation strategies in various domains playing against other negotiating agents as well as humans. We discuss some of the results obtained by means of these experiments.

  4. Agent-Based Negotiation in Uncertain Environments

    Science.gov (United States)

    Debenham, John; Sierra, Carles

    An agent aims to secure his projected needs by attempting to build a set of (business) relationships with other agents. A relationship is built by exchanging private information, and is characterised by its intimacy — degree of closeness — and balance — degree of fairness. Each argumentative interaction between two agents then has two goals: to satisfy some immediate need, and to do so in a way that develops the relationship in a desired direction. An agent's desire to develop each relationship in a particular way then places constraints on the argumentative utterances. The form of negotiation described is argumentative interaction constrained by a desire to develop such relationships.

  5. Story telling engine based on agent interaction

    OpenAIRE

    Porcel, Juan Carlos

    2008-01-01

    Comics have been used as a programming tool for agents, giving them instructions on how to act. In this thesis I do this in reverse, I use comics to describe the actions of agents already interacting with each other to create a storytelling engine that dynamically generate stories, based on the interaction of said agents. The model for the agent behaviours is based on the improvisational puppets model of Barbara Hayes-Roth. This model is chosen due to the nature of comics themselves. Comics ...

  6. Improving Multi-Agent Systems Using Jason

    DEFF Research Database (Denmark)

    Vester, Steen; Boss, Niklas Skamriis; Jensen, Andreas Schmidt

    2011-01-01

    We describe the approach used to develop the multi-agent system of herders that competed as the Jason-DTU team at the Multi-Agent Programming Contest 2010. We also participated in 2009 with a system developed in the agentoriented programming language Jason which is an extension of AgentSpeak. We ...... used the implementation from 2009 as a foundation and therefore much of the work done this year was on improving that implementation. We present a description which includes design and analysis of the system as well as the main features of our agent team strategy. In addition we discuss...

  7. Multi-agent and complex systems

    CERN Document Server

    Ren, Fenghui; Fujita, Katsuhide; Zhang, Minjie; Ito, Takayuki

    2017-01-01

    This book provides a description of advanced multi-agent and artificial intelligence technologies for the modeling and simulation of complex systems, as well as an overview of the latest scientific efforts in this field. A complex system features a large number of interacting components, whose aggregate activities are nonlinear and self-organized. A multi-agent system is a group or society of agents which interact with others cooperatively and/or competitively in order to reach their individual or common goals. Multi-agent systems are suitable for modeling and simulation of complex systems, which is difficult to accomplish using traditional computational approaches.

  8. Characterization of chemical agent transport in paints.

    Science.gov (United States)

    Willis, Matthew P; Gordon, Wesley; Lalain, Teri; Mantooth, Brent

    2013-09-15

    A combination of vacuum-based vapor emission measurements with a mass transport model was employed to determine the interaction of chemical warfare agents with various materials, including transport parameters of agents in paints. Accurate determination of mass transport parameters enables the simulation of the chemical agent distribution in a material for decontaminant performance modeling. The evaluation was performed with the chemical warfare agents bis(2-chloroethyl) sulfide (distilled mustard, known as the chemical warfare blister agent HD) and O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate (VX), an organophosphate nerve agent, deposited on to two different types of polyurethane paint coatings. The results demonstrated alignment between the experimentally measured vapor emission flux and the predicted vapor flux. Mass transport modeling demonstrated rapid transport of VX into the coatings; VX penetrated through the aliphatic polyurethane-based coating (100 μm) within approximately 107 min. By comparison, while HD was more soluble in the coatings, the penetration depth in the coatings was approximately 2× lower than VX. Applications of mass transport parameters include the ability to predict agent uptake, and subsequent long-term vapor emission or contact transfer where the agent could present exposure risks. Additionally, these parameters and model enable the ability to perform decontamination modeling to predict how decontaminants remove agent from these materials. Published by Elsevier B.V.

  9. Multi-agent systems simulation and applications

    CERN Document Server

    Uhrmacher, Adelinde M

    2009-01-01

    Methodological Guidelines for Modeling and Developing MAS-Based SimulationsThe intersection of agents, modeling, simulation, and application domains has been the subject of active research for over two decades. Although agents and simulation have been used effectively in a variety of application domains, much of the supporting research remains scattered in the literature, too often leaving scientists to develop multi-agent system (MAS) models and simulations from scratch. Multi-Agent Systems: Simulation and Applications provides an overdue review of the wide ranging facets of MAS simulation, i

  10. Conversational Agents in E-Learning

    Science.gov (United States)

    Kerry, Alice; Ellis, Richard; Bull, Susan

    This paper discusses the use of natural language or 'conversational' agents in e-learning environments. We describe and contrast the various applications of conversational agent technology represented in the e-learning literature, including tutors, learning companions, language practice and systems to encourage reflection. We offer two more detailed examples of conversational agents, one which provides learning support, and the other support for self-assessment. Issues and challenges for developers of conversational agent systems for e-learning are identified and discussed.

  11. Genes relacionados con microftalmia y anoftalmia hereditarias.

    Science.gov (United States)

    Matías-Pérez, Diana; García-Montalvo, Iván Antonio; Zenteno, Juan Carlos

    2017-01-01

    Congenital eye malformations are the second most common cause of childhood blindness and are originated by disruption of the normal process of eye development during embryonic stage. Their etiology is variable, although monogenic causes are of great importance as they have a high risk of familial recurrence. Included among the most severe congenital eye abnormalities are microphthalmia, defined by an abnormally small eye, and anophthalmia, characterized by congenital absence of ocular structures. The currrent knowledge of the genes involved in human microphthalmia and anophthalmia in humans is revised in this work. Copyright: © 2017 SecretarÍa de Salud.

  12. Toxicologia do tolueno: aspectos relacionados ao abuso

    Directory of Open Access Journals (Sweden)

    Forster Letícia M.K.

    1994-01-01

    Full Text Available O tolueno está presente em muitos produtos de uso doméstico e industrial e é o principal solvente envolvido no abuso de substâncias e na exposição ocupacional. O problema mais grave no estudo de patologias relacionadas ao tolueno é que este está geralmente associado, em suas preparações comerciais, a outras substâncias. O potencial tóxico do tolueno foi abordado nos seguintes aspectos: parâmetros farmacológicos; características físico-químicas; exposição; estudos clínicos; diagnóstico; pesquisa experimental; tolerância e dependência; efeitos agudos e crônicos; neurotoxicidade; teratogenicidade; doenças psiquiátricas; carcinogenicidade e tratamento. Conclui-se ser de grande importância e urgência que se realizem estudos clínicos com amostras maiores para definição mais precisa das conseqüências do uso crônico

  13. Toxicologia do tolueno: aspectos relacionados ao abuso

    Directory of Open Access Journals (Sweden)

    Letícia M.K. Forster

    1994-04-01

    Full Text Available O tolueno está presente em muitos produtos de uso doméstico e industrial e é o principal solvente envolvido no abuso de substâncias e na exposição ocupacional. O problema mais grave no estudo de patologias relacionadas ao tolueno é que este está geralmente associado, em suas preparações comerciais, a outras substâncias. O potencial tóxico do tolueno foi abordado nos seguintes aspectos: parâmetros farmacológicos; características físico-químicas; exposição; estudos clínicos; diagnóstico; pesquisa experimental; tolerância e dependência; efeitos agudos e crônicos; neurotoxicidade; teratogenicidade; doenças psiquiátricas; carcinogenicidade e tratamento. Conclui-se ser de grande importância e urgência que se realizem estudos clínicos com amostras maiores para definição mais precisa das conseqüências do uso crônico

  14. Direct anti-HCV agents

    Directory of Open Access Journals (Sweden)

    Xingquan Zhang

    2016-01-01

    Full Text Available Unlike human immunodeficiency virus (HIV and hepatitis B virus (HBV, hepatitis C virus (HCV infection is a curable disease. Current direct antiviral agent (DAA targets are focused on HCV NS3/4A protein (protease, NS5B protein (polymerase and NS5A protein. The first generation of DAAs includes boceprevir and telaprevir, which are protease inhibitors and were approved for clinical use in 2011. The cure rate for genotype 1 patients increased from 45% to 70% when boceprevir or telaprevir was added to standard PEG-IFN/ribavirin. More effective and less toxic second generation DAAs supplanted these drugs by 2013. The second generation of DAAs includes sofosbuvir (Sovaldi, simeprevir (Olysio, and fixed combination medicines Harvoni and Viekira Pak. These drugs increase cure rates to over 90% without the need for interferon and effectively treat all HCV genotypes. With these drugs the “cure HCV” goal has become a reality. Concerns remain about drug resistance mutations and the high cost of these drugs. The investigation of new HCV drugs is progressing rapidly; fixed dose combination medicines in phase III clinical trials include Viekirax, asunaprevir+daclatasvir+beclabuvir, grazoprevir+elbasvir and others.

  15. Cutting agents for special metals

    International Nuclear Information System (INIS)

    Sugito, Seiji; Sakakibara, Fumi

    1979-01-01

    The quantity of use of special metals has increased year after year in the Plasma Research Institute, Nagoya University, with the development of researches on plasma and nuclear fusion. Most of these special metals are hard to cut, and in order to secure the surface smoothness and dimensional accuracy, considerable efforts are required. The method of experiment is as follows: cutting agents salt water and acetone, rape-seed oil, sulfide and chloride oil and water soluble cutting oil W grade 3; metals to be cut niobium, molybdenum, tantalum, titanium and tungsten; cutting conditions cutting speed 4.7 to 90 m/min, feed 0.07 to 0.2 mm/rev, depth of cut 0.1 to 0.4 mm, tool cemented carbide bit. Chemicals such as tetrachloromethane and trichloroethane give excellent cutting performance, but the toxicity is intense and the stimulative odor exists, accordingly they are hard to use practically. Cutting was easier when the salt water added with acetone was used than the case of rape-seed oil, but salt water is corrosive. Recently, the machining of molybdenum has been often carried out, and the water soluble cutting oil was the best. It is also good for cutting stainless steel, and its lubricating property is improved by adding some additives such as sulfur, chlorine, phosphorus and molybdenum disulfide. However after cutting with it, washing is required. (Kako, I.)

  16. Departments as Agents of Change

    Science.gov (United States)

    Lagowski, J. J.

    1996-07-01

    Higher education is changing because it has no choice. And, for the most part, outside influences are dictating the processes of change. The more fortunate institutions have had a flat budget during this period, but most have been forced to deal with a declining revenue stream as well. Legislators seem bent on micromanaging state-supported institutions, even as they cut their support. Regulators demand greater institutional accountability. Students and their parents expect more service at lower prices and increased flexibility. Technological advances have dramatically affected the availability and accessibility of extant knowledge. It is no longer a question of whether institutions will change, but rather, who will control the change. Most institutions possess long-standing academic traditions, but these are placed at risk in an increasingly competitive market that holds little sympathy for such traditions and may even see them as obstacles or barriers. As a result, the change agents will undoubtedly have a profound effect on the very nature of academic institutions. From the academic point of view, it would seem prudent to attempt to manage the changes that will inevitably occur. A number of concerned observers, notably the Pew Higher Education Roundtable and the American Association for Higher Education, argue persuasively that the academic department is the logical focus for responding to the current winds of change. Using a marketing metaphor, the academic department has been likened to a "producers' cooperative" of services that consumers seek. Thus, the department should be held accountable for the quality of teaching delivered by its members, for the coherence of its major, for its contributions to the general education curriculum, and for supervising and rewarding its individual faculty members. If departments are to be held accountable, it is surely in their best interest to act in such a way that they are accountable. Expecting academic departments to be

  17. Novel Methylselenoesters as Antiproliferative Agents

    Directory of Open Access Journals (Sweden)

    Nuria Díaz-Argelich

    2017-08-01

    Full Text Available Selenium (Se compounds are potential therapeutic agents in cancer. Importantly, the biological effects of Se compounds are exerted by their metabolites, with methylselenol (CH3SeH being one of the key executors. In this study, we developed a new series of methylselenoesters with different scaffolds aiming to modulate the release of CH3SeH. The fifteen compounds follow Lipinski’s Rule of Five and with exception of compounds 1 and 14, present better drug-likeness values than the positive control methylseleninic acid. The compounds were evaluated to determine their radical scavenging activity. Compound 11 reduced both DPPH and ABTS radicals. The cytotoxicity of the compounds was evaluated in a panel of five cancer cell lines (prostate, colon and lung carcinoma, mammary adenocarcinoma and chronic myelogenous leukemia and two non-malignant (lung and mammary epithelial cell lines. Ten compounds had GI50 values below 10 μM at 72 h in four cancer cell lines. Compounds 5 and 15 were chosen for further characterization of their mechanism of action in the mammary adenocarcinoma cell line due to their similarity with methylseleninic acid. Both compounds induced G2/M arrest whereas cell death was partially executed by caspases. The reduction and metabolism were also investigated, and both compounds were shown to be substrates for redox active enzyme thioredoxin reductase.

  18. Toddlers Selectively Help Fair Agents

    Directory of Open Access Journals (Sweden)

    Luca Surian

    2017-06-01

    Full Text Available Previous research showed that infants and toddlers are inclined to help prosocial agents and assign a positive valence to fair distributions. Also, they expect that positive and negative actions directed toward distributors will conform to reciprocity principles. This study investigates whether toddlers are selective in helping others, as a function of others’ previous distributive actions. Toddlers were presented with real-life events in which two actresses distributed resources either equally or unequally between two puppets. Then, they played together with a ball that accidentally fell to the ground and asked participants to help them to retrieve it. Participants preferred to help the actress who performed equal distributions. This finding suggests that by the second year children’s prosocial actions are modulated by their emerging sense of fairness.HighlightsToddlers (mean age = 25 months are selective in helping distributors.Toddlers prefer helping a fair rather than an unfair distributor.Toddlers’ selective helping provides evidence for an early sense of fairness.

  19. Viruses: agents of coral disease?

    Science.gov (United States)

    Davy, S K; Burchett, S G; Dale, A L; Davies, P; Davy, J E; Muncke, C; Hoegh-Guldberg, O; Wilson, W H

    2006-03-23

    The potential role of viruses in coral disease has only recently begun to receive attention. Here we describe our attempts to determine whether viruses are present in thermally stressed corals Pavona danai, Acropora formosa and Stylophora pistillata and zoanthids Zoanthus sp., and their zooxanthellae. Heat-shocked P. danai, A. formosa and Zoanthus sp. all produced numerous virus-like particles (VLPs) that were evident in the animal tissue, zooxanthellae and the surrounding seawater; VLPs were also seen around heat-shocked freshly isolated zooxanthellae (FIZ) from P. danai and S. pistillata. The most commonly seen VLPs were tail-less, hexagonal and about 40 to 50 nm in diameter, though a diverse range of other VLP morphotypes (e.g. rounded, rod-shaped, droplet-shaped, filamentous) were also present around corals. When VLPs around heat-shocked FIZ from S. pistillata were added to non-stressed FIZ from this coral, they resulted in cell lysis, suggesting that an infectious agent was present; however, analysis with transmission electron microscopy provided no clear evidence of viral infection. The release of diverse VLPs was again apparent when flow cytometry was used to enumerate release by heat-stressed A. formosa nubbins. Our data support the infection of reef corals by viruses, though we cannot yet determine the precise origin (i.e. coral, zooxanthellae and/or surface microbes) of the VLPs seen. Furthermore, genome sequence data are required to establish the presence of viruses unequivocally.

  20. Application Framework with Abstractions for Protocol and Agent Role

    DEFF Research Database (Denmark)

    Kristensen, Bent Bruun

    2016-01-01

    In multi-agent systems, agents interact by sending and receiving messages and the actual sequences of message form interaction structures between agents. Protocols and agents organized internally by agent roles support these interaction structures. Description and use of protocols based on agent ...... roles are supported by a simple and expressive application framework....

  1. Critérios adotados para seleção de indicadores de contaminação ambiental relacionados aos resíduos sólidos de serviços de saúde: uma proposta de avaliação Criteria for definition of environmental contamination indicators related to solid waste from health care facilities: a proposal for evaluation

    Directory of Open Access Journals (Sweden)

    Aída Cristina do Nascimento Silva

    2002-10-01

    Full Text Available O objetivo deste estudo é identificar microrganismos indicadores de contaminação ambiental, a partir dos principais aspectos ambientais e cadeia epidemiológica relacionados aos agentes. A seleção dos microrganismos a serem definidos como indicadores foi realizada a partir de informações específicas sobre a caracterização microbiológica de resíduos sólidos de serviços de saúde (RSSS, e a avaliação de riscos de infecção pelos materiais perfurocortantes presentes nesses resíduos. A forma de avaliação proposta para os critérios adotados na seleção de indicadores de contaminação abrangeu entrega prévia de questionário estruturado a uma rede de especialistas do Distrito Federal. A formação multidisciplinar dos especialistas, composta por profissionais da área de saúde e microbiologista ambiental, permitiu definir, de forma consensual, os indicadores de contaminação ambiental. Patógenos como Mycobacterium tuberculosis e os vírus da Hepatite A e B destacam-se no estudo com capacidade de sobrevivência ou resistência ambiental.The objective of this study was to identify target microorganisms as indicators of environmental contamination. The study evaluates the main environmental aspects and epidemiological chain related to such agents. Microorganisms were selected through key information about microbiological characterization of health care facilities' solid waste and evaluation of risk of infection from discarded sharps. The form of evaluation proposed for criteria adopted in the selection of contamination indicators included prior submission of a structured questionnaire to a network of specialists from the Federal District of Brazil. The specialists' multidisciplinary background, including professionals from the health field and an environmental microbiologist, helped define environmental contamination indicators by consensus. Pathogens such as Mycobacterium tuberculosis and hepatitis A and B viruses were

  2. Prevalence of lifestyle-related cardiovascular risk factors in Peru: the PREVENCION study Prevalencia de factores de riesgo cardiovascular relacionados con el estilo de vida en Perú: el estudio PREVENCIÓN

    Directory of Open Access Journals (Sweden)

    Josefina Medina-Lezama

    2008-09-01

    Full Text Available OBJECTIVES: To estimate the prevalence of lifestyle-related cardiovascular risk factors in the adult population of Arequipa, the second largest city in Peru. METHODS: The prevalence and patterns of smoking, alcohol drinking, lack of physical activity, high-fat diet, and low fruit and vegetable intake were evaluated among 1 878 subjects (867 men and 1 011 women in a population-based study. RESULTS: The age-standardized prevalence of current smoking, former smoking, and never smoking were 21.6%, 14.3%, and 64.1%, respectively. The prevalence of current smoking was significantly higher in men than women (31.1% vs. 12.1%; P OBJETIVOS: Estimar la prevalencia de factores de riesgo cardiovascular relacionados con el estilo de vida de adultos de Arequipa, la segunda mayor ciudad de Perú. MÉTODOS: Se realizó un estudio de base poblacional para evaluar la prevalencia y los patrones de consumo de tabaco y bebidas alcohólicas, la falta de actividad física, la dieta rica en grasas y el bajo consumo de frutas y vegetales en 1 878 personas (867 hombres y 1 011 mujeres. RESULTADOS: Las prevalencias estandarizadas por la edad de los fumadores actuales, pasados y de los que nunca fumaron fueron 21,6%, 14,3% y 64,1%, respectivamente. La prevalencia de tabaquismo fue significativamente mayor en los hombres que en las mujeres (31,1% frente a 12,1%; P < 0,01. La prevalencia del consumo de bebidas alcohólicas fue de 37,7%, significativamente mayor en los hombres que en las mujeres (55,5% frente a 19,7%; P < 0,01. La prevalencia del consumo excesivo de alcohol fue de 21,1%, mayor en los hombres que en las mujeres (36,1% frente a 6,4%; P < 0,01. La gran mayoría de los bebedores presentó un patrón de consumo concentrado fundamentalmente en los fines de semana y los días feriados, más que el consumo habitual con las comidas en los días laborables. La proporción de personas con insuficiente actividad fue de 57,6%, significativamente mayor en las mujeres que en

  3. Adherencia al tratamiento en trabajadores de la Administración Pública: factores relacionados con la salud y el bienestar Adherence to treatment by public administration workers: factors related to health and well-being

    Directory of Open Access Journals (Sweden)

    Carmen Pozo Muñoz

    2009-06-01

    Full Text Available Objetivos: a Analizar los niveles de adherencia al tratamiento por parte de los trabajadores estudiados; b determinar los factores relacionados con el incumplimiento terapéutico y, por ende, con la salud y el bienestar de los participantes en el estudio y c sentar las bases para el diseño futuro de estrategias de intervención preventiva. Métodos: El estudio se llevó a cabo durante el año 2008 en el Servicio de Prevención de los Servicios Centrales del Instituto Nacional de la Seguridad Social. Para ello, se diseñó un cuestionario aplicado a cada paciente (trabajador en el que se recogen, además de las variables sociodemográficas, el tipo de enfermedad, tipo de tratamiento, razones de incumplimiento, apoyo social, salud y bienestar subjetivo. Resultados: Los análisis muestran que la adherencia a la medicación se da en mayor medida que la relacionada con la dieta y/o ejercicio físico. Entre los motivos de incumplimiento se señala especialmente el olvido, seguido del temor a los efectos secundarios. Existen diferencias en salud y bienestar entre quienes siguen las recomendaciones y quienes no; aquélla son estadísticamente significativas en la dieta y el ejercicio físico. El apoyo social juega un papel importante en la adherencia, en la salud y el bienestar subjetivo. Conclusiones: El conocimiento de los factores relacionados con el incumplimiento terapéutico y su vinculación con la salud y el bienestar ayuda a planificar actuaciones encaminadas a la prevención de la enfermedad en el ámbito laboral.Objectives: a to analyse the levels of adherence to treatment by the workers studied, b to determine the factors related to therapeutic failure and thus to participants´ health and well-being and c to make the design of future preventive strategies. Methods: The study was carried out during 2008 in the Prevention Service of Central Services, National Institute of Social Security. A questionnaire was designed and applied to each

  4. Ultrasound contrast agents: An overview

    International Nuclear Information System (INIS)

    Cosgrove, David

    2006-01-01

    With the introduction of microbubble contrast agents, diagnostic ultrasound has entered a new era that allows the dynamic detection of tissue flow of both the macro and microvasculature. Underpinning this development is the fact that gases are compressible, and thus the microbubbles expand and contract in the alternating pressure waves of the ultrasound beam, while tissue is almost incompressible. Special software using multiple pulse sequences separates these signals from those of tissue and displays them as an overlay or on a split screen. This can be done at low acoustic pressures (MI < 0.3) so that the microbubbles are not destroyed and scanning can continue in real time. The clinical roles of contrast enhanced ultrasound scanning are expanding rapidly. They are established in echocardiography to improve endocardial border detection and are being developed for myocardial perfusion. In radiology, the most important application is the liver, especially for focal disease. The approach parallels that of dynamic CT or MRI but ultrasound has the advantages of high spatial and temporal resolution. Thus, small lesions that can be indeterminate on CT can often be studied with ultrasound, and situations where the flow is very rapid (e.g., focal nodular hyperplasia where the first few seconds of arterial perfusion may be critical to making the diagnosis) are readily studied. Microbubbles linger in the extensive sinusoidal space of normal liver for several minutes whereas they wash out rapidly from metastases, which have a low vascular volume and thus appear as filling defects. The method has been shown to be as sensitive as three-phase CT. Microbubbles have clinical uses in many other applications where knowledge of the microcirculation is important (the macrocirculation can usually be assessed adequately using conventional Doppler though there are a few important situations where the signal boost given by microbubbles is useful, e.g., transcranial Doppler for evaluating

  5. A Secure Protocol Based on a Sedentary Agent for Mobile Agent Environments

    OpenAIRE

    Abdelmorhit E. Rhazi; Samuel Pierre; Hanifa Boucheneb

    2007-01-01

    The main challenge when deploying mobile agent environments pertains to security issues concerning mobile agents and their executive platform. This paper proposes a secure protocol which protects mobile agents against attacks from malicious hosts in these environments. Protection is based on the perfect cooperation of a sedentary agent running inside a trusted third host. Results show that the protocol detects several attacks, such as denial of service, incorrect execution and re-execution of...

  6. Mechanisms of bacterial resistance to antimicrobial agents.

    NARCIS (Netherlands)

    van Duijkeren, Engeline; Schink, Anne-Kathrin; Roberts, Marilyn C; Wang, Yang; Schwarz, Stefan

    During the past decades resistance to virtually all antimicrobial agents has been observed in bacteria of animal origin. This chapter describes in detail the mechanisms so far encountered for the various classes of antimicrobial agents. The main mechanisms include enzymatic inactivation by either

  7. Dynamics of three-agent games

    International Nuclear Information System (INIS)

    Mungan, Muhittin; Rador, Tonguc

    2008-01-01

    We study the dynamics and resulting score distribution of three-agent games where after each competition a single agent wins and scores a point. A single competition is described by a triplet of numbers p, t and q denoting the probabilities that the team with the highest, middle or lowest accumulated score wins. The three-agent game can be regarded as a social model where a player can be favored or disfavored for advancement, based on his/her accumulated score. We study the full family of solutions in the regime, where the number of agents and competitions is large, which can be regarded as a hydrodynamic limit. Depending on the parameter values (p, q, t), we find six qualitatively different asymptotic score distributions and we provide a qualitative explanation of these results. We also compare our analytical results against numerical simulations of the microscopic model and find these to be in excellent agreement. It is possible to decide the outcome of a three-agent game through a mini-tournament of two-agent competitions among the participating players and it turns out that the resulting possible score distributions are a subset of those obtained for the general three-agent games. We discuss how one can add a steady and democratic decline rate to the model and present a simple geometric construction that allows one to obtain the score evolution equations for n-agent games

  8. Prophylaxis and Therapy Against Chemical Agents

    Science.gov (United States)

    2009-11-01

    Hematopoietic Consequences F. Dorandeu 5) pH Dependent Toxicity of Sulphur Mustard In Vitro J. Mikler Nerve Agents / Scavengers 1) Mutagenesis...symptoms such as salivation or shortness of breath and lower level exposures could be rendered inconsequential. B.2 CURRENT THERAPY FOR NERVE AGENT

  9. Modeling agents with a theory of mind

    NARCIS (Netherlands)

    Harbers, M.; Bosch, K. van den; Meyer, J.J.C.

    2009-01-01

    Training systems with intelligent virtual agents provide an effective means to train people for complex, dynamic tasks like crisis management or firefighting. Virtual agents provide more adequate behavior and explanations if they not only take their own goals and beliefs into account, but also the

  10. 13 CFR 120.952 - Fiscal agent.

    Science.gov (United States)

    2010-01-01

    ... Fiscal Agent to assess the financial markets, minimize the cost of sales, arrange for the production of... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Fiscal agent. 120.952 Section 120.952 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION BUSINESS LOANS Development Company...

  11. Biological agents in polyarticular juvenile idiopathic arthritis

    DEFF Research Database (Denmark)

    Amarilyo, Gil; Tarp, Simon; Foeldvari, Ivan

    2016-01-01

    BACKGROUND AND OBJECTIVE: Although various biological agents are in use for polyarticular juvenile idiopathic arthritis (pJIA), head-to-head trials comparing the efficacy and safety among them are lacking. We aimed to compare the efficacy and safety of biological agents in pJIA using all currently...

  12. Assurance in Agent-Based Systems

    Energy Technology Data Exchange (ETDEWEB)

    Gilliom, Laura R.; Goldsmith, Steven Y.

    1999-05-10

    Our vision of the future of information systems is one that includes engineered collectives of software agents which are situated in an environment over years and which increasingly improve the performance of the overall system of which they are a part. At a minimum, the movement of agent and multi-agent technology into National Security applications, including their use in information assurance, is apparent today. The use of deliberative, autonomous agents in high-consequence/high-security applications will require a commensurate level of protection and confidence in the predictability of system-level behavior. At Sandia National Laboratories, we have defined and are addressing a research agenda that integrates the surety (safety, security, and reliability) into agent-based systems at a deep level. Surety is addressed at multiple levels: The integrity of individual agents must be protected by addressing potential failure modes and vulnerabilities to malevolent threats. Providing for the surety of the collective requires attention to communications surety issues and mechanisms for identifying and working with trusted collaborators. At the highest level, using agent-based collectives within a large-scale distributed system requires the development of principled design methods to deliver the desired emergent performance or surety characteristics. This position paper will outline the research directions underway at Sandia, will discuss relevant work being performed elsewhere, and will report progress to date toward assurance in agent-based systems.

  13. Anonymity and Software Agents: An Interdiscplinary Challenge

    NARCIS (Netherlands)

    Brazier, F.M.; Oskamp, A.; Prins, J.M.; Schellekens, M.H.M.; Wijngaards, N.J.E.

    2004-01-01

    Software agents that play a role in E-commerce and E-government applications involving the Internet often contain information about the identity of their human user such as credit cards and bank accounts. This paper discusses whether this is necessary: whether human users and software agents are

  14. Anonymity and Software Agents: An Interdisciplinary Challenge

    NARCIS (Netherlands)

    Oskamp, A.; Brazier, F.M.; Prins, J.E.J.; Schellekens, M.H.M.; Wijngaards, N.J.E.

    2004-01-01

    Software agents that play a role in E-commerce and E-government applications involving the Internet often contain information about the identity of their human user such as credit cards and bank accounts. This paper discusses whether this is necessary: whether human users and software agents are

  15. Deliberate normative agents : principles and architecture

    NARCIS (Netherlands)

    Dignum, F.P.M.; Castelfranchi, C.; Jonker, C.; Treur, J.; Jennings, N.R.; Lespérance, Y.

    2000-01-01

    In this paper norms are assumed to be useful in agent societies. It is claimed that not only following norms, but also the possibility of ‘intelligent’ norm violation can be useful. Principles for agents that are able to behave deliberatively on the basis of explicitly represented norms are

  16. Deliberate Evolution in Multi-Agent Systems

    NARCIS (Netherlands)

    Brazier, F.M.; Jonker, C.M.; Treur, J.; Wijngaards, N.J.E.; Gabbay, D.

    2001-01-01

    Evolution in societies of agents is a challenging phenomenon, both from a fundamental perspective and from an applied perspective. In the literature often genetic programming approaches are used and relatively simple agents are considered, which have no deliberate influence on the direction of the

  17. Agent Based Reasoning in Multilevel Flow Modeling

    DEFF Research Database (Denmark)

    Lind, Morten; Zhang, Xinxin

    2012-01-01

    to launch the MFM Workbench into an agent based environment, which can complement disadvantages of the original software. The agent-based MFM Workbench is centered on a concept called “Blackboard System” and use an event based mechanism to arrange the reasoning tasks. This design will support the new...

  18. Stock market dynamics created by interacting agents

    Directory of Open Access Journals (Sweden)

    Mohamed Riad Remita

    2006-01-01

    Full Text Available We study a stock market model, consisting in a large number of agents, going eventually to infinity, and evaluate the stock price under the influence of opinions of different agents. Next we study the behavior of prices when the market is very nervous; there appear discontinuities (phase transitions which can be interpreted as stock market crashes.

  19. Marine Natural Products as Prototype Agrochemical Agents

    Science.gov (United States)

    Peng, Jiangnan; Shen, Xiaoyu; El Sayed, Khalid A.; Dunbar, D. C Harles; Perry, Tony L.; Wilkins, Scott P.; Hamann, Mark T.; Bobzin, Steve; Huesing, Joseph; Camp, Robin; Prinsen, Mike; Krupa, Dan; Wideman, Margaret A.

    2016-01-01

    In the interest of identifying new leads that could serve as prototype agrochemical agents, 18 structurally diverse marine-derived compounds were examined for insecticidal, herbicidal, and fungicidal activities. Several new classes of compounds have been shown to be insecticidal, herbicidal, and fungicidal, which suggests that marine natural products represent an intriguing source for the discovery of new agrochemical agents. PMID:12670165

  20. Evolution of hemostatic agents in surgical practice

    Directory of Open Access Journals (Sweden)

    Chandru P Sundaram

    2010-01-01

    Conclusions : A review of the evolution of topical hemostatic agents highlights opportunities for potential novel research. Fibrin sealants may have the most opportunity for advancement, and understanding the history of these products is useful. With the drive in urology for minimally invasive surgical techniques, adaptation of topical hemostatic agents to this surgical approach would be valuable and offers an opportunity for novel contributions.

  1. Assurance in Agent-Based Systems

    International Nuclear Information System (INIS)

    Gilliom, Laura R.; Goldsmith, Steven Y.

    1999-01-01

    Our vision of the future of information systems is one that includes engineered collectives of software agents which are situated in an environment over years and which increasingly improve the performance of the overall system of which they are a part. At a minimum, the movement of agent and multi-agent technology into National Security applications, including their use in information assurance, is apparent today. The use of deliberative, autonomous agents in high-consequence/high-security applications will require a commensurate level of protection and confidence in the predictability of system-level behavior. At Sandia National Laboratories, we have defined and are addressing a research agenda that integrates the surety (safety, security, and reliability) into agent-based systems at a deep level. Surety is addressed at multiple levels: The integrity of individual agents must be protected by addressing potential failure modes and vulnerabilities to malevolent threats. Providing for the surety of the collective requires attention to communications surety issues and mechanisms for identifying and working with trusted collaborators. At the highest level, using agent-based collectives within a large-scale distributed system requires the development of principled design methods to deliver the desired emergent performance or surety characteristics. This position paper will outline the research directions underway at Sandia, will discuss relevant work being performed elsewhere, and will report progress to date toward assurance in agent-based systems

  2. Vivid agents : theory, architecture, and applications

    NARCIS (Netherlands)

    Schroeder, M.; Wagner, G.R.

    2000-01-01

    Vivid agents (Wagner, 1996) are software-controlled systems whose state comprises the mental components of knowledge, perceptions, tasks, and intentions, and whose behavior is represented by means of action and reaction rules. An execution model for vivid agents is presented, which is based on an

  3. Cognitive agent programming : A semantic approach

    NARCIS (Netherlands)

    Riemsdijk, M.B. van

    2006-01-01

    In this thesis we are concerned with the design and investigation of dedicated programming languages for programming agents. We focus in particular on programming languages for rational agents, i.e., flexibly behaving computing entities that are able to make "good" decisions about what to do. An

  4. Practice among Novice Change Agents in Schools

    Science.gov (United States)

    Blossing, Ulf

    2016-01-01

    The aim of the article is to understand practice as negotiation of meaning among novice and internal change agents in school organisations. The research question is as follows: What themes of participation and reification/management occur among the change agents? The study was qualitative in design using the social learning theory of community of…

  5. Computational Intelligence Agent-Oriented Modelling

    Czech Academy of Sciences Publication Activity Database

    Neruda, Roman

    2006-01-01

    Roč. 5, č. 2 (2006), s. 430-433 ISSN 1109-2777 R&D Projects: GA MŠk 1M0567 Institutional research plan: CEZ:AV0Z10300504 Keywords : multi-agent systems * adaptive agents * computational intelligence Subject RIV: IN - Informatics, Computer Science

  6. Explor@ Advisory Agent: Tracing the Student's Trail.

    Science.gov (United States)

    Lundgren-Cayrol, Karin; Paquette, Gilbert; Miara, Alexis; Bergeron, Frederick; Rivard, Jacques; Rosca, Ioan

    This paper presents research and development of an adaptive World Wide Web-based system called Explor@ Advisory Agent, capable of tailoring advice to the individual student's needs, actions, and reactions toward pedagogical events, as well as according to diagnosis of content acquisition. Explor@ Advisory Agent consists of two sub-systems, the…

  7. Process for encapsulating active agents in gels

    NARCIS (Netherlands)

    Yilmaz, G.; Jongboom, R.O.J.; Oosterhaven, J.

    2001-01-01

    The present invention relates to a process for encapsulating an active agent in a biopolymer in the form of a gel, comprising the steps of: a) forming a dispersion or solution of the biopolymer in water; and b) adding the active agent to the dispersion or solution obtained in step a); wherein the

  8. Biomonitoring of exposure to chemical warfare agents

    NARCIS (Netherlands)

    Noort, D.; Schans, M.J. van der; Benschop, H.P.

    2006-01-01

    An overview is presented of the major methods that are presently available for biomonitoring of exposure to chemical warfare agents, i.e., nerve agents and sulfur mustard. These methods can be applied for a variety of purposes such as diagnosis and dosimetry of exposure of casualties, verification

  9. Mansion, A Distributed Multi-Agent System

    NARCIS (Netherlands)

    van t Noordende, G.; Brazier, F.M.; Tanenbaum, A.S.

    2001-01-01

    In this position summary we present work in progress on a worldwide, scalable multi-agent system, based on a paradigm of hyperlinked rooms. The framework offers facilities for managing distribution, security and mobility aspects for both active elements (agents) and passive elements (objects) in the

  10. Dynamics of three-agent games

    Science.gov (United States)

    Mungan, Muhittin; Rador, Tonguç

    2008-02-01

    We study the dynamics and resulting score distribution of three-agent games where after each competition a single agent wins and scores a point. A single competition is described by a triplet of numbers p, t and q denoting the probabilities that the team with the highest, middle or lowest accumulated score wins. The three-agent game can be regarded as a social model where a player can be favored or disfavored for advancement, based on his/her accumulated score. We study the full family of solutions in the regime, where the number of agents and competitions is large, which can be regarded as a hydrodynamic limit. Depending on the parameter values (p, q, t), we find six qualitatively different asymptotic score distributions and we provide a qualitative explanation of these results. We also compare our analytical results against numerical simulations of the microscopic model and find these to be in excellent agreement. It is possible to decide the outcome of a three-agent game through a mini-tournament of two-agent competitions among the participating players and it turns out that the resulting possible score distributions are a subset of those obtained for the general three-agent games. We discuss how one can add a steady and democratic decline rate to the model and present a simple geometric construction that allows one to obtain the score evolution equations for n-agent games.

  11. Improving Disability Awareness among Extension Agents

    Science.gov (United States)

    Mahadevan, Lakshmi; Peterson, Rick L.; Grenwelge, Cheryl

    2014-01-01

    Increasing prevalence rates and legislative mandates imply that educators, parents, and Extension agents will need better tools and resources to meet the needs of special populations. The Texas A&M AgriLife Extension Service addresses this issue by using e-learning tools. Extension agents can take advantage of these courses to gain critical…

  12. Your company's secret change agents.

    Science.gov (United States)

    Pascale, Richard Tanner; Sternin, Jerry

    2005-05-01

    Organizational change has traditionally come about through top-down initiatives such as hiring experts or importing best-of-breed practices. Such methods usually result in companywide rollouts of templates mandated from on high. These do little to get people excited. But within every organization, there are a few individuals who find unique ways to look at problems that seem impossible to solve. Although these change agents start out with the same tools and access to resources as their peers, they are able to see solutions where others do not. They find a way to bridge the divide between what is happening and what is possible. These positive deviants are the key, the authors believe, to a better way of creating organizational change. Your company can make the most of their methods by following six steps. In Step 1, Make the group the guru, the members of the community are engaged in the process of their own evolution. Step 2, Reframe through facts, entails restating the problem in a way that opens minds to new possibilities. Step 3, Make it safe to learn, involves creating an environment that supports innovative ideas. In Step 4, Make the problem concrete, the community combats abstraction by stating uncomfortable truths. In Step 5, Leverage social proof, the community looks to the larger society for examples of solutions that have worked in parallel situations. In Step 6, Confound the immune defense response, solutions are introduced organically from within the group in a way that promotes acceptance. Throughout the steps, the leader must suspend his or her traditional role in favor of more facilitatory practices. The positive-deviance approach has unearthed solutions to such complicated and diverse problems as malnutrition in Mali and human trafficking in East Java. This methodology can help solve even the most extreme dilemmas.

  13. Fatores relacionados à institucionalização de crianças e adolescentes acolhidos na comarca de Uberaba - MG - doi: 10.5020/18061230.2012.p139

    Directory of Open Access Journals (Sweden)

    Daniela Tavares Gontijo

    2012-11-01

    Full Text Available Objetivo: Descrever o perfil sociodemográfico e os fatores relacionados à institucionalização de crianças e adolescentes acolhidos na Comarca de Uberaba, no ano de 2009. Métodos: Estudo descritivo, documental, retrospectivo, no qual se incluíram todas as crianças e adolescentes que estiveram abrigados, por decisão judicial, na Comarca de Uberaba-MG, Brasil, no ano de 2009. Os dados coletados nos processos judiciais foram analisados através de estatística descritiva. Resultados: Das 169 crianças e adolescentes acolhidos em 2009, 82 (51,47% eram do sexo feminino. As idades de 4 a 6 anos (33 - 19,53% e 13 a 15 anos (30 - 17,75% foram as faixas etárias mais prevalentes. Entre as crianças em idade escolar, somente 41 (24,26% tinham a escolaridade adequada à faixa etária. Em 109 (65,08% dos casos não se identificou a figura paterna, presente na composição familiar. Os principais motivos para o acolhimento foram negligência, condições socioeconômicas da família, uso de álcool e drogas pelos responsáveis, maus tratos, abandono, violência física e violência sexual. Conclusões: Os dados apontam para o processo de vulnerabilidade social vivenciado pelas famílias, que suscita a articulação e fortalecimento de políticas e ações intersetoriais, com a participação ativa da sociedade na busca da promoção de melhores condições de vida e de saúde das crianças e adolescentes.

  14. Sintomatología depresiva y problemas relacionados al consumo de alcohol durante la formación académica de estudiantes de medicina Depressive symptomatology and alcohol-related problems during the academic training of medical students

    Directory of Open Access Journals (Sweden)

    Rubén Valle

    2013-03-01

    Full Text Available Con el objetivo de evaluar la frecuencia de sintomatología depresiva (SDe y problemas relacionados al consumo de alcohol (PRCA durante la formación académica de estudiantes de Medicina de la Universidad Nacional Mayor de San Marcos, se realizó un estudio transversal en estos estudiantes, del primero a sexto año. Usando la escala de depresión de Zung, para evaluar SDe, y el cuestionario CAGE, para evaluar PRCA, se encontró que el 23,3% de los encuestados presentó SDe y el 7,3%, PRCA. Se encontró, así mismo que la frecuencia de SDe y PRCA fue mayor en los estudiantes de los primeros años de estudios. Se recomienda que hay necesidad de actuar en la prevención y detección de estas entidades desde los primeros años de formación académica de estudiantes de MedicinaIn order to evaluate the frequency of depressive symptomatology (DS and alcohol-related problems (ARP during the academic training of medical students from Universidad Nacional Mayor de San Marcos, a cross-sectional study was conducted among students from first to sixth year of career. The Zung Self-Rating depression scale was used to evaluate DS and the CAGE questionnaire to evaluate ARP. 23.3% of participants had DS, and 7.3% had ARP. We found that the frequency of DS and ARP was higher among students in the first years of career. We recommend it is necessary to take action in the prevention and detection of these disorders from the first years of training of medical students

  15. COMERCIO EQUITATIVO: TENSIONES Y DESAFÍOS RELACIONADOS CON LA AMPLIACIÓN DE LOS MERCADOS. APROXIMACIÓN EN TÉRMINOS DE DINÁMICA DE ACTORES Y DE GÉNERO

    Directory of Open Access Journals (Sweden)

    Sophie Charlier Yépez Del Castillo

    2009-06-01

    Full Text Available En esta comunicación se analiza el impacto y las consecuencias de la ampliación de mercados sobre el comercio justo. Fundado sobre principios y normas precisas, el comercio justo de un mercado incipiente se ha convertido en el lapso de diez años en un mercado en plena expansión. Este crecimiento relacionado con la entrada del comercio equitativo en el circuito convencional —sobre todo en los supermercados— ha sido acompañado de un cambio progresivo de los valores del comercio justo. Su apertura al mercado internacional permitió ampliar mercados y desarrollar nuevas competencias. Pero igualmente se crearon tensiones entre nuevos e históricos actores del comercio justo. A partir de una perspectiva de género, en este artículo se analizan las consecuencias de la ampliación de los mercados sobre el empoderamiento de las mujeres —individual y colectivo—, las relaciones de género, la participación y el desarrollo local.   ABSTRACT This essay analyzes the impact and the consequences of expansion of markets on fair trade. Founded on precise principles and norms, in a lapse of ten years fair trade has converted from an incipient market into one in full expansion. This growth related with the entry of equitable trade into the conventional circuit —in particular in supermarkets— has been accompanied by a progressive change of the values of fair trade. Its opening to the international market enabled the expansion of markets and development of new competencies. But tensions were also created between new and historic actors of fair trade. Based on a gender perspective, this article analyzes the consequences of market expansion on the —individual and collective— empowerment of women, gender relations, participation, and local development.

  16. Potenciales cerebrales relacionados con categorización lógica en humanos: estudio descriptivo y planteos experimentales Brain potentiales associated with logic categorization in humans: descriptive study and experimental issues

    Directory of Open Access Journals (Sweden)

    Angel Tabullo

    2007-12-01

    Full Text Available El presente trabajo investiga desde un abordaje "biocomportamental" aspectos electroneurofisiológicos correlativos al aprendizaje de categorías lógicas en sujetos humanos sanos. Se empleó la técnica de potenciales relacionados a eventos (PREs para registrar la actividad electrofisiológica de los sujetos durante la realización de una tarea de relaciones de equivalencia (Sidman, 1982. Como resultado, pudo observarse la siguiente sucesión temporal relacionada con los estímulos de comparación: un potencial visual temprano en la región occipital, luego un componente negativo en la región frontal y otro positivo tardío parietal. Finalmente, en sincronía con las respuestas, se obtuvo un componente negativo lateralizado en la región central. Se discute el significado funcional de los potenciales identificados, y se propone como planteo experimental examinar la correspondencia temporal de los distintos componentes PREs entre sí y con el tiempo de respuesta, como dispositivo experimental para el estudio de aspectos funcionales y estructurales del comportamiento complejo en humanos.The present work investigates electroneurophysiological aspects of logical category learning in healthy human subjects, from a biocomportamental standpoint. Event - related potentials method (ERPs was used to measure subject's electric brain activity, while performing an equivalence relations task (Sidman, 1982. As a result, the following temporal succession was observed in association with the comparison stimuli: an early visual potential in the occipital region, then a negative potential in the frontal region and a late parietal positivity. Finally, a lateralized central negativity was observed, in synchrony with the subject's answers. The functional meaning of the observed ERPs is discussed, and it is proposed to examine the correspondence between different ERP components timing and reaction times, as an experimental device for the study of functional and

  17. COMPARATIVO DE LOS ALGORITMOS DE DIMENSIÓN FRACTAL HIGUCHI, KATZ Y MULTIRESOLUCIÓN DE CONTEO DE CAJAS EN SEÑALES EEG BASADAS EN POTENCIALES RELACIONADOS POR EVENTOS

    Directory of Open Access Journals (Sweden)

    Santiago Fernández Fraga

    Full Text Available La obtención de información por medio de la medición de señales registradas durante diferentes procesos o condiciones fisiológicas del cerebro es importante para poder desarrollar interfaces computacionales que traduzcan las señales eléctricas cerebrales a comandos computacionales de control. Un electroencefalograma (EEG registra la actividad eléctrica del cerebro en respuesta al recibir diferentes estímulos externos (potenciales por eventos. El análisis de estas señales permite identificar y distinguir estados específicos de la función fisiológica del cerebro. La Dimensión Fractal se ha utilizado como una herramienta para el análisis de formas de ondas biomédicas, en particular se ha utilizado para determinar la medida de la complejidad en series de tiempo generadas por EEG. El presente documento pretende analizar la base de datos HeadIT de series de tiempo biomédicas obtenidas por EEG a las cuales se obtendrán la FD por medio de los métodos Higuchi, Katz y Multi-resolución de Conteo de Cajas, que muestre la relación entre el método para la obtención de la Dimensión Fractal y la condición fisiológica de la señal basada en Potenciales Cerebrales Relacionados por Eventos.

  18. Caracterización de los egresos hospitalarios con tumores malignos, según la información de los Grupos Relacionados con el Diagnóstico

    Directory of Open Access Journals (Sweden)

    Lina María López-Cano

    2017-09-01

    Full Text Available Objetivo: caracterizar los egresos hospitalarios del año 2014 con diagnóstico de cáncer, de acuerdo a la información de los Grupos Relacionados con el Diagnóstico (GRD. Metodología: estudio analítico con análisis descriptivo e inferencial, compuesto por información secundaria. La descripción estadística se hizo según la naturaleza y nivel de medición de las variables, y se realizó un análisis bivariado para estimar la diferencia de medias utilizando la t-Student (t y la anova paramétrica (F de Snedecor. Resultados: se atendieron 3.030 egresos, con un peso medio relativo de 1,62, una estancia media inliers de 10,69 días y un iema de 0,97. El 56,01% de los egresos presentó un nivel de severidad mayor, con un peso relativo de 2,09 y una estancia media de 13,53 días. De los pacientes que presentaron una probabilidad mayor de morir, el 32,64% egresaron vivos y el 19,62% fallecieron. Se encontraron diferencias estadísticamente significativas en la estancia media con el estado al alta, el nivel de severidad y el nivel de mortalidad. Conclusiones: los resultados de este estudio indican el manejo eficaz que la institución le da a la estancia hospitalaria, evidenciado en la atención de 76 pacientes más por el ahorro de los días de estancia y en los indicadores funcionales, los cuales fueron acordes con la complejidad de los pacientes.

  19. Educação a distância: uma análise estatística dos fatores relacionados à evasão e à permanência

    Directory of Open Access Journals (Sweden)

    Ricardo Antonio Cornelio

    2016-12-01

    Full Text Available O maior desafio que as organizações enfrentam nos dias atuais está relacionado à adoção de medidas adequadas para lidar com a grande velocidade de inovação. A Educação a Distância (EaD, com a utilização das novas tecnologias de informação e comunicação (TICs, tem viabilizado o acesso a um número cada vez maior de sujeitos. Uma das vantagens frequentemente citada da EaD é permitir ao aluno estudar onde quer que esteja e quando lhe for mais conveniente. Junte-se a essa liberdade a utilização de computadores cada vez mais velozes e o desenvolvimento de novos aplicativos, propiciando o crescimento da educação a distância. Entretanto, essa expansão e o uso das tecnologias, por si só, não são capazes de evitar a ocorrência de evasão. Evitar o aumento da evasão e levantar as suas causas é atividade relevante para as instituições que tenham a capacidade de dar apoio aos estudantes durante o desenvolvimento de seu curso. Para identificar as questões que mais retratam as facilidades e dificuldades enfrentadas pelo alunado em cursos EaD, optou-se pela técnica da Análise Fatorial Exploratória, aplicada em duas categorias de alunos, uma delas constituída pelos alunos matriculados e alunos formados e a outra categoria composta de alunos que abandonaram o curso em um polo de apoio presencial do município de Itabira – MG.

  20. Problema crônico de coluna e diagnóstico de distúrbios osteomusculares relacionados ao trabalho (DORT autorreferidos no Brasil: Pesquisa Nacional de Saúde, 2013

    Directory of Open Access Journals (Sweden)

    Max Moura de Oliveira

    Full Text Available OBJETIVO:descrever a prevalência de problemas crônicos de coluna e de distúrbios osteomusculares relacionados ao trabalho (DORT autorreferidos em adultos brasileiros, segundo variáveis sociodemográficas.MÉTODOS:estudo descritivo com 60.202 indivíduos ≥18 anos incluídos na Pesquisa Nacional de Saúde 2013; foram estimadas prevalências e intervalos de confiança (IC95%.RESULTADOS:a prevalência de problema crônico de coluna foi de 18,5% (IC95%:17,8-19,1, maior em mulheres (21,1%; IC95%:20,2-21,9, indivíduos com baixa escolaridade (24,6%; IC95%:23,5-25,6 e residentes na região Sul (23,3%; IC95%:21,6-25,1; dos que referiram problema de coluna, 16,4% (IC95%:15,2-17,6 relataram possuir grau intenso/muito intenso de limitações nas atividades habituais, principalmente na área rural (20,3%; IC95%:17,5-23,0; a prevalência de DORT foi de 2,4% (IC95%:2,2-2,7, superior entre mulheres (3,3%; IC95%:2,9-3,7 e indivíduos com Ensino Superior (3,8; IC95%:3,0-4,7, e mais baixa no Norte (0,7%; IC95%:0,5-1,0.CONCLUSÃO:a prevalência de problema crônico de coluna foi elevada mas a prevalência de DORT, baixa, possivelmente indicando falta deste diagnóstico.

  1. Agent-Based Models in Social Physics

    Science.gov (United States)

    Quang, Le Anh; Jung, Nam; Cho, Eun Sung; Choi, Jae Han; Lee, Jae Woo

    2018-06-01

    We review the agent-based models (ABM) on social physics including econophysics. The ABM consists of agent, system space, and external environment. The agent is autonomous and decides his/her behavior by interacting with the neighbors or the external environment with the rules of behavior. Agents are irrational because they have only limited information when they make decisions. They adapt using learning from past memories. Agents have various attributes and are heterogeneous. ABM is a non-equilibrium complex system that exhibits various emergence phenomena. The social complexity ABM describes human behavioral characteristics. In ABMs of econophysics, we introduce the Sugarscape model and the artificial market models. We review minority games and majority games in ABMs of game theory. Social flow ABM introduces crowding, evacuation, traffic congestion, and pedestrian dynamics. We also review ABM for opinion dynamics and voter model. We discuss features and advantages and disadvantages of Netlogo, Repast, Swarm, and Mason, which are representative platforms for implementing ABM.

  2. CEST and PARACEST MR contrast agents

    International Nuclear Information System (INIS)

    Hancu, Ileana; Dixon, W. Thomas; Woods, Mark; Sherry, A. Dean; Vinogradov, Elena; Lenkinski, Robert E.

    2010-01-01

    In this review we describe the status of development for a new class of magnetic resonance (MR) contrast agents, based on chemical exchange saturation transfer (CEST). The mathematics and physics relevant to the description of the CEST effect in MR are presented in an appendix published in the online version only. We discuss the issues arising when translating in vitro results obtained with CEST agents to using these MR agents in in vivo model studies and in humans. Examples are given on how these agents are imaged in vivo. We summarize the status of development of these CEST agents, and speculate about the next steps that may be taken towards the demonstration of CEST MR imaging in clinical applications

  3. Advances on Practical Applications of Agents and Multi-Agent Systems 10th International Conference on Practical Applications of Agents and Multi-Agent Systems

    CERN Document Server

    Müller, Jörg; Rodríguez, Juan; Pérez, Javier

    2012-01-01

    Research on Agents and Multi-Agent Systems has matured during the last decade and many effective applications of this technology are now deployed. PAAMS provides an international forum to present and discuss the latest scientific developments and their effective applications, to assess the impact of the approach, and to facilitate technology transfer. PAAMS started as a local initiative, but has since grown to become THE international yearly platform to present, to discuss, and to disseminate the latest developments and the most important outcomes related to real-world applications. It provides a unique opportunity to bring multi-disciplinary experts, academics and practitioners together to exchange their experience in the development and deployment of Agents and Multi-Agent Systems. PAAMS intends to bring together researchers and developers from industry and the academic world to report on the latest scientific and technical advances on the application of multi-agent systems, to discuss and debate the major ...

  4. Highlights on Practical Applications of Agents and Multi-Agent Systems 10th International Conference on Practical Applications of Agents and Multi-Agent Systems

    CERN Document Server

    Sánchez, Miguel; Mathieu, Philippe; Rodríguez, Juan; Adam, Emmanuel; Ortega, Alfonso; Moreno, María; Navarro, Elena; Hirsch, Benjamin; Lopes-Cardoso, Henrique; Julián, Vicente

    2012-01-01

    Research on Agents and Multi-Agent Systems has matured during the last decade and many effective applications of this technology are now deployed. PAAMS provides an international forum to present and discuss the latest scientific developments and their effective applications, to assess the impact of the approach, and to facilitate technology transfer. PAAMS started as a local initiative, but has since grown to become THE international yearly platform to present, to discuss, and to disseminate the latest developments and the most important outcomes related to real-world applications. It provides a unique opportunity to bring multi-disciplinary experts, academics and practitioners together to exchange their experience in the development and deployment of Agents and Multi-Agent Systems. PAAMS intends to bring together researchers and developers from industry and the academic world to report on the latest scientific and technical advances on the application of multi-agent systems, to discuss and debate the major ...

  5. Fault Reconnaissance Agent for Sensor Networks

    Directory of Open Access Journals (Sweden)

    Elhadi M. Shakshuki

    2010-01-01

    Full Text Available One of the key prerequisite for a scalable, effective and efficient sensor network is the utilization of low-cost, low-overhead and high-resilient fault-inference techniques. To this end, we propose an intelligent agent system with a problem solving capability to address the issue of fault inference in sensor network environments. The intelligent agent system is designed and implemented at base-station side. The core of the agent system – problem solver – implements a fault-detection inference engine which harnesses Expectation Maximization (EM algorithm to estimate fault probabilities of sensor nodes. To validate the correctness and effectiveness of the intelligent agent system, a set of experiments in a wireless sensor testbed are conducted. The experimental results show that our intelligent agent system is able to precisely estimate the fault probability of sensor nodes.

  6. Econophysics of agent-based models

    CERN Document Server

    Aoyama, Hideaki; Chakrabarti, Bikas; Chakraborti, Anirban; Ghosh, Asim

    2014-01-01

    The primary goal of this book is to present the research findings and conclusions of physicists, economists, mathematicians and financial engineers working in the field of "Econophysics" who have undertaken agent-based modelling, comparison with empirical studies and related investigations. Most standard economic models assume the existence of the representative agent, who is “perfectly rational” and applies the utility maximization principle when taking action. One reason for this is the desire to keep models mathematically tractable: no tools are available to economists for solving non-linear models of heterogeneous adaptive agents without explicit optimization. In contrast, multi-agent models, which originated from statistical physics considerations, allow us to go beyond the prototype theories of traditional economics involving the representative agent. This book is based on the Econophys-Kolkata VII Workshop, at which many such modelling efforts were presented. In the book, leading researchers in the...

  7. 9th KES Conference on Agent and Multi-Agent Systems : Technologies and Applications

    CERN Document Server

    Howlett, Robert; Jain, Lakhmi

    2015-01-01

    Agents and multi-agent systems are related to a modern software paradigm which has long been recognized as a promising technology for constructing autonomous, complex and intelligent systems. The topics covered in this volume include agent-oriented software engineering, agent co-operation, co-ordination, negotiation, organization and communication, distributed problem solving, specification of agent communication languages, agent privacy, safety and security, formalization of ontologies and conversational agents. The volume highlights new trends and challenges in agent and multi-agent research and includes 38 papers classified in the following specific topics: learning paradigms, agent-based modeling and simulation, business model innovation and disruptive technologies, anthropic-oriented computing, serious games and business intelligence, design and implementation of intelligent agents and multi-agent systems, digital economy, and advances in networked virtual enterprises. Published p...

  8. Factores económicos relacionados con los Objetivos de Desarrollo del Milenio en salud: una revisión bibliográfica Economic factors related to the Millennium Development Goals: a literature review

    Directory of Open Access Journals (Sweden)

    Marco Palma

    2009-08-01

    Full Text Available OBJETIVOS: Sistematizar la información publicada sobre la situación y los avances en el logro de los Objetivos de Desarrollo del Milenio relacionados con la salud (ODMS, así como analizar su asociación con algunos factores económicos y los pronósticos de cumplimiento. MÉTODOS: Se realizó una búsqueda de los artículos científicos sobre los Objetivos de Desarrollo del Milenio en general publicados entre el 1 de enero de 2000 y el 31 de agosto de 2006 en las bases bibliográficas electrónicas EBSCO, CSA Illumina, Thomson Gale, SwetsWise y BIREME. Se seleccionaron los artículos originales en inglés o español que evaluaran la situación de los ODMS o sus avances y se refirieran a factores determinantes. Se analizó la distribución de los factores determinantes de la situación de los ODMS o sus avances, los ODMS referidos, el tipo de evaluación, la relación entre los indicadores económicos y la salud, el lugar estudiado, y la situación y los pronósticos del cumplimiento de los ODMS. Se valoró la calidad de los artículos. RESULTADOS: Se identificaron 304 artículos originales, de ellos 114 (37,5% se ocupaban de uno o varios ODMS. Los objetivos relacionados con la mortalidad infantil y materna fueron los más frecuentemente abordados. De los 39 artículos que evaluaban los ODMS y su relación con los factores económicos, en 13 se consideraban factores económicos relacionados con la equidad, la política o la globalización. Los factores económicos y políticos fueron los más frecuentemente asociados con la situación de los ODMS o sus avances. CONCLUSIONES: Existe una tendencia a utilizar variables económicas vinculadas con las condiciones de la población para analizar la situación de los ODMS y sus avances. Falta información sobre la relación con el gasto gubernamental, el comercio exterior, la ayuda externa y las políticas económicas mundiales. Los pronósticos para lograr los ODMS en los países pobres son

  9. Factores de riesgo y de protección relacionados con el consumo de sustancias psicoactivas en estudiantes de enfermería Fatores de risco e proteção relacionados ao consumo de substâncias psicoativas em alunos de graduação em enfermagem Risk and protection factors related to the consumption of psychoactive substances in undergraduate nursing students

    Directory of Open Access Journals (Sweden)

    Blanca Nivia Morales

    2011-06-01

    Full Text Available Este estudio tiene como objetivo identificar la frecuencia de factores de riesgo y de protección relacionados con el consumo de drogas en estudiantes de enfermería. Es un estudio de corte transversal en que se aplicó el instrumento de Factores de Riesgo y de Protección para el Consumo de Sustancias Psicoactivas validado (FRP-SPA a estudiantes de enfermería. La información se analizó en el programa STATA 10. Se encuestaron 390 estudiantes. Los dominios "preconceptos y valoración", "permisividad social y accesibilidad a SPA", "habilidades sociales y de autocontrol" son factores de riesgo en casi el 100% de los encuestados para el consumo de drogas. La "Espiritualidad" y "satisfacción con relaciones interpersonales" son los dominios protectores predominantes. Con base en los datos, se puede presumir que los estudiantes no dimensionan los riesgos frente al consumo de alcohol y tabaco, lo que los lleva a considerar su consumo como normal y de aceptación social.O estudo apresentou como objetivo identificar a frequência de fatores de risco e proteção, relacionados ao consumo de drogas, em estudantes de enfermagem. É estudo de coorte transversal, onde foi aplicado instrumento de fatores de risco e proteção para o consumo de substâncias psicoativas validado (FRP-SPA para alunos de graduação em enfermagem. Os dados foram analisados por meio do programa STATA 10. Participaram do estudo 390 estudantes. Os domínios "pré-conceito e valoração", "permissividade social e acesso a SPA", "habilidades sociais e autocontrole" são fatores de risco para o consumo de drogas em quase 100% dos participantes. "Espiritualidade" e "satisfação com as relações interpessoais" são domínios protetores predominantes. Com base nos dados, pode-se presumir que os estudantes não dimensionam os riscos frente ao consumo de álcool e cigarro, o que os leva a considerar seu consumo como normal e de aceitação social.This study aims to identify the

  10. Avaliação tomográfica de parâmetros morfométricos do processo odontoide relacionados à fixação interna com parafusos Evaluación tomográfica de parámetros morfométricos del proceso odontoides relacionados con la fijación interna con tornillos Tomographic evaluation of odontoid parameters related to its internal fixation

    Directory of Open Access Journals (Sweden)

    Murilo Tavares Daher

    2010-09-01

    Full Text Available OBJETIVOS: avaliar, por meio da tomografia computadorizada, os parâmetros morfométricos do processo odontoide relacionados com a sua fixação interna. MÉTODOS: cinquenta e cinco exames de tomografia computadorizada (TC da coluna cervical que permitissem o estudo do áxis foram utilizados para o estudo. Destes, 24 (47% pertenciam a pacientes do sexo masculino e 31 do sexo feminino. A média de idade foi de 42,05 anos (± 15,82. Foram excluídos os casos com diagnóstico de tumores, infecções, sequelas de fratura, artrose muito avançada ou malformações congênitas. Nenhum dos exames tinha como indicação problemas relacionados à coluna cervical alta. Foram avaliados os seguintes parâmetros: 1 - comprimento estimado do implante (CEI, 2 - angulação do parafuso (aP, 3 - diâmetro transverso mínimo (DTmín e 4 - diâmetro anteroposterior mínimo (DAPmín. Foi utilizado o teste t de Student para comparar os resultados entre o grupo de pacientes do sexo masculino e do feminino. RESULTADOS: o valor médio do CEI foi de 37,95 mm ± 3,44 para a população geral do estudo. O valor médio da angulação do parafuso (aP foi de 60,91º ± 4,06. O diâmetro transverso mínimo (DTmín foi de 9,05 mm ± 0,88 e o diâmetro antero-posterior mínimo DAPmín foi de 10,35 mm ±1,04. Os valores do CEI e do DAPmín na população masculina foram significativamente maiores do que aqueles encontrados na feminina, enquanto os outros parâmetros não apresentaram diferenças entre os dois sexos na população estudada. Dos 55 pacientes, 39% apresentaram DTmín OBJETIVOS: evaluar, por medio de la tomografía computarizada, los parámetros morfométricos del proceso odontoides relacionados con su fijación interna. MÉTODOS: para el estudio, fueron utilizados 55 exámenes de tomografía computarizada (TC de la columna cervical que permitieran el estudio del axis. De éstos, 24 (47% pertenecían a pacientes del sexo masculino. El promedio de edad fue de 42.05 a

  11. Study of Crossling Agent and Couplink Agent Synergism on Mechanical Properties of HDPE-Cu Composites

    International Nuclear Information System (INIS)

    Mashuri; Sujud, A.A.; Karo Karo, Aloma

    2001-01-01

    The effects of crosslink agents, coupling agents and synergism on mechanical properties of HDPE-Cu composites materials has been investigated. The crosslink was made with dicumyl peroxide as crosslink agents of 2% concentration, so the interface adhesion of matrix-filler was made with 3-amino propyl triethoxysilane as coupling agents of 0.5% concentration. The results of research's showed, that the crosslink and interface adhesion of matrix-filler can increase tensile strength and elongation at break of HDPE-Cu composites. The synergism of two agents can increase tensile strength to 20% and elongation at break to 23% of HDPE-Cu composites materials

  12. Multi-Agent Systems for E-Commerce

    OpenAIRE

    Solodukha, T. V.; Sosnovskiy, O. A.; Zhelezko, B. A.

    2009-01-01

    The article focuses on multi-agent systems (MAS) and domains that can benefit from multi-agent technology. In the last few years, the agent based modeling (ABM) community has developed several practical agent based modeling toolkits that enable individuals to develop agent-based applications. The comparison of agent-based modeling toolkits is given. Multi-agent systems are designed to handle changing and dynamic business processes. Any organization with complex and distributed business pro...

  13. Traitement de l'hétérogénéité sémantique dans les interactions humain-agent et agent-agent

    OpenAIRE

    Mazuel , Laurent

    2008-01-01

    The main purpose of this thesis is the management of semantic heterogeneity in human-agent and agent-agent interaction. We especially focus on the situation where a software agent, supplied with a knowledge representation model, has to understand requests coming from different interlocutors; either it is a human user or another software agent.Most work in this domain either focus on human-agent interaction or agent-agent interaction. On the contrary, we suggest that it is possible to use a co...

  14. [Decorporation agents for internal radioactive contamination].

    Science.gov (United States)

    Ohmachi, Yasushi

    2015-01-01

    When radionuclides are accidentally ingested or inhaled, blood circulation or tissue/organ deposition of the radionuclides causes systemic or local radiation effects. In such cases, decorporation therapy is used to reduce the health risks due to their intake. Decorporation therapy includes reduction and/or inhibition of absorption from the gastrointestinal tract, isotopic dilution, and the use of diuretics, adsorbents, and chelating agents. For example, penicillamine is recommended as a chelating agent for copper contamination, and diethylene triamine pentaacetic acid is approved for the treatment of internal contamination with plutonium. During chelation therapy, the removal effect of the drugs should be monitored using a whole-body counter and/or bioassay. Some authorities, such as the National Council on Radiation Protection and Measurements and International Atomic Energy Agency, have reported recommended decorporation agents for each radionuclide. However, few drugs are approved by the US Food and Drug Administration, and many are off-label-use agents. Because many decontamination agents are drugs that have been available for a long time and have limited efficacy, the development of new, higher-efficacy drugs has been carried out mainly in the USA and France. In this article, in addition to an outline of decorporation agents for internal radioactive contamination, an outline of our research on decorporation agents for actinide (uranium and plutonium) contamination and for radio-cesium contamination is also presented.

  15. Agent-Supported Mission Operations Teamwork

    Science.gov (United States)

    Malin, Jane T.

    2003-01-01

    This slide presentation reviews the development of software agents to support of mission operations teamwork. The goals of the work was to make automation by agents easy to use, supervise and direct, manage information and communication to decrease distraction, interruptions, workload and errors, reduce mission impact of off-nominal situations and increase morale and decrease turnover. The accomplishments or the project are: 1. Collaborative agents - mixed initiative and creation of instructions for mediating agent 2. Methods for prototyping, evaluating and evolving socio-technical systems 3. Technology infusion: teamwork tools in mISSIons 4. Demonstrations in simulation testbed An example of the use of agent is given, the use of an agent to monitor a N2 tank leak. An incomplete instruction to the agent is handled with mediating assistants, or Intelligent Briefing and Response Assistant (IBRA). The IBRA Engine also watches data stream for triggers and executes Act-Whenever actions. There is also a Briefing and Response Instruction (BRI) which is easy for a discipline specialist to create through a BRI editor.

  16. Metareasoning and Social Evaluations in Cognitive Agents

    Science.gov (United States)

    Pinyol, Isaac; Sabater-Mir, Jordi

    Reputation mechanisms have been recognized one of the key technologies when designing multi-agent systems. They are specially relevant in complex open environments, becoming a non-centralized mechanism to control interactions among agents. Cognitive agents tackling such complex societies must use reputation information not only for selecting partners to interact with, but also in metareasoning processes to change reasoning rules. This is the focus of this paper. We argue about the necessity to allow, as a cognitive systems designers, certain degree of freedom in the reasoning rules of the agents. We also describes cognitive approaches of agency that support this idea. Furthermore, taking as a base the computational reputation model Repage, and its integration in a BDI architecture, we use the previous ideas to specify metarules and processes to modify at run-time the reasoning paths of the agent. In concrete we propose a metarule to update the link between Repage and the belief base, and a metarule and a process to update an axiom incorporated in the belief logic of the agent. Regarding this last issue we also provide empirical results that show the evolution of agents that use it.

  17. New antithrombotic agents in the ambulatory setting.

    Science.gov (United States)

    Gibbs, Neville M; Weightman, William M; Watts, Stephen A

    2014-12-01

    Many patients presenting for surgical or other procedures in an ambulatory setting are taking new antiplatelet or anticoagulant agents. This review assesses how the novel features of these new agents affect the management of antithrombotic therapy in the ambulatory setting. There have been very few studies investigating the relative risks of continuing or ceasing new antithrombotic agents. Recent reviews indicate that the new antithrombotic agents offer greater efficacy or ease of administration but are more difficult to monitor or reverse. They emphasize the importance of assessing the bleeding risk of the procedure, the thrombotic risk if the agent is ceased, and patient factors that increase the likelihood of bleeding. The timing of cessation of the agent, if required, depends on its pharmacokinetics and patients' bleeding risks. Patients at high risk of thrombotic complications may require bridging therapy. Once agreed upon, the perioperative plan should be made clear to all involved. As there are few clinical studies to guide management, clinicians must make rational decisions in relation to continuing or ceasing new antithrombotic agents. This requires knowledge of their pharmacokinetics, and a careful multidisciplinary assessment of the relative thrombotic and bleeding risks in individual patients.

  18. Persistent agents in Axelrod's social dynamics model

    Science.gov (United States)

    Reia, Sandro M.; Neves, Ubiraci P. C.

    2016-01-01

    Axelrod's model of social dynamics has been studied under the effect of external media. Here we study the formation of cultural domains in the model by introducing persistent agents. These are agents whose cultural traits are not allowed to change but may be spread through local neighborhood. In the absence of persistent agents, the system is known to present a transition from a monocultural to a multicultural regime at some critical Q (number of traits). Our results reveal a dependence of critical Q on the occupation probability p of persistent agents and we obtain the phase diagram of the model in the (p,Q) -plane. The critical locus is explained by the competition of two opposite forces named here barrier and bonding effects. Such forces are verified to be caused by non-persistent agents which adhere (adherent agents) to the set of traits of persistent ones. The adherence (concentration of adherent agents) as a function of p is found to decay for constant Q. Furthermore, adherence as a function of Q is found to decay as a power law with constant p.

  19. Continuum deformation of multi-agent systems

    CERN Document Server

    Rastgoftar, Hossein

    2016-01-01

    This monograph presents new algorithms for formation control of multi-agent systems (MAS) based on principles of continuum mechanics. Beginning with an overview of traditional methods, the author then introduces an innovative new approach whereby agents of an MAS are considered as particles in a continuum evolving in ℝn whose desired configuration is required to satisfy an admissible deformation function. The necessary theory and its validation on a mobile-agent-based swarm test bed are considered for two primary tasks: homogeneous transformation of the MAS and deployment of a random distribution of agents on a desired configuration. The framework for this model is based on homogeneous transformations for the evolution of an MAS under no inter-agent communication, local inter-agent communication, and intelligent perception by agents. Different communication protocols for MAS evolution, the robustness of tracking of a desired motion by an MAS evolving in ℝn, and the effect of communication delays in an MAS...

  20. Relay tracking control for second-order multi-agent systems with damaged agents.

    Science.gov (United States)

    Dong, Lijing; Li, Jing; Liu, Qin

    2017-11-01

    This paper investigates a situation where smart agents capable of sensory and mobility are deployed to monitor a designated area. A preset number of agents start tracking when a target intrudes this area. Some of the tracking agents are possible to be out of order over the tracking course. Thus, we propose a cooperative relay tracking strategy to ensure the successful tracking with existence of damaged agents. Relay means that, when a tracking agent quits tracking due to malfunction, one of the near deployed agents replaces it to continue the tracking task. This results in jump of tracking errors and dynamic switching of topology of the multi-agent system. Switched system technique is employed to solve this specific problem. Finally, the effectiveness of proposed tracking strategy and validity of the theoretical results are verified by conducting a numerical simulation. Copyright © 2017 ISA. Published by Elsevier Ltd. All rights reserved.

  1. Agent and multi-Agent systems in distributed systems digital economy and e-commerce

    CERN Document Server

    Hartung, Ronald

    2013-01-01

    Information and communication technology, in particular artificial intelligence, can be used to support economy and commerce using digital means. This book is about agents and multi-agent distributed systems applied to digital economy and e-commerce to meet, improve, and overcome challenges in the digital economy and e-commerce sphere. Agent and multi-agent solutions are applied in implementing real-life, exciting developments associated with the need to eliminate problems of distributed systems.   The book presents solutions for both technology and applications, illustrating the possible uses of agents in the enterprise domain, covering design and analytic methods, needed to provide a solid foundation required for practical systems. More specifically, the book provides solutions for the digital economy, e-sourcing clusters in network economy, and knowledge exchange between agents applicable to online trading agents, and security solutions to both digital economy and e-commerce. Furthermore, it offers soluti...

  2. Multi-Agent Pathfinding with n Agents on Graphs with n Vertices

    DEFF Research Database (Denmark)

    Förster, Klaus-Tycho; Groner, Linus; Hoefler, Torsten

    2017-01-01

    We investigate the multi-agent pathfinding (MAPF) problem with $n$ agents on graphs with $n$ vertices: Each agent has a unique start and goal vertex, with the objective of moving all agents in parallel movements to their goal s.t.~each vertex and each edge may only be used by one agent at a time....... We give a combinatorial classification of all graphs where this problem is solvable in general, including cases where the solvability depends on the initial agent placement. Furthermore, we present an algorithm solving the MAPF problem in our setting, requiring O(n²) rounds, or O(n³) moves...... of individual agents. Complementing these results, we show that there are graphs where Omega(n²) rounds and Omega(n³) moves are required for any algorithm....

  3. Mechanisms of resistance to alkylating agents

    OpenAIRE

    Damia, G.; D‘Incalci, M.

    1998-01-01

    Alkylating agents are the most widely used anticancer drugs whose main target is the DNA, although how exactly the DNA lesions cause cell death is still not clear. The emergence of resistance to this class of drugs as well as to other antitumor agents is one of the major causes of failure of cancer treatment. This paper reviews some of the best characterized mechanisms of resistance to alkylating agents. Pre- and post-target mechanisms are recognized, the former able to limit the formation of...

  4. AORTA: Adding Organizational Reasoning to Agents

    DEFF Research Database (Denmark)

    Jensen, Andreas Schmidt; Dignum, Virginia

    2014-01-01

    the expected behavior of the agents. Agents need to be able to reason about the regulations, so that they can act within the expected boundaries and work towards the objectives of the organization. This extended abstract introduces AORTA, a component that can be integrated into agents’ reasoning mechanism......, allowing them to reason about (and act upon) regulations specified by an organizational model using simple reasoning rules. The added value is that the organizational model is independent of that of the agents, and that the approach is not tied to a specific organizational model....

  5. Automatic Generation of Agents using Reusable Soft Computing Code Libraries to develop Multi Agent System for Healthcare

    OpenAIRE

    Priti Srinivas Sajja

    2015-01-01

    This paper illustrates architecture for a multi agent system in healthcare domain. The architecture is generic and designed in form of multiple layers. One of the layers of the architecture contains many proactive, co-operative and intelligent agents such as resource management agent, query agent, pattern detection agent and patient management agent. Another layer of the architecture is a collection of libraries to auto-generate code for agents using soft computing techni...

  6. Francisella tularensis - potential biological agent

    International Nuclear Information System (INIS)

    Taleski, V.

    2009-01-01

    Francisella tularensis is a small, nonmotile, aerobic, gram-negative coccobacillus capable of surviving for weeks at low temperatures in water, moist soil, hay, straw, or decaying animal carcasses. F. tularensis is the causative of the zoonotic disease tularemia. This bacterium was first identified in ground squirrels in Tulare County, California (1912). The human disease was recognized and described by Edward Francis (1922) as tularemia, and the agent was renamed Francisella tularensis in his honor. F. tularensis is one of the most infectious bacterial pathogens known, as few as 10-50 organisms can cause disease. Humans can become incidentally infected through diverse environmental exposures: bites by infected arthropods; handling infectious animal tissues or fluids; direct contact with or ingestion of contaminated food, water, or soil and inhalation of infective aerosols. Humans can develop severe and sometimes fatal illness, but do not transmit the disease to others. F. tularensis have few subspecies: 1) F. tularensis subsp. tularensis (type A), highly virulent, found only in North America. The bacterium is transmitted among animals and from animals to humans by ticks, occasionally deerfly, or by aerosols; 2) F. tularensis subsp. holarctica (type B), moderately virulent, occurs in Euroasia and North America, mainly associated with streams, lakes, ponds, rivers and semi-aquatic animals such as muskrats and beavers (water-borne disease). Type B tularemia has been observed during war times (during Second World War 100 000 cases occurred each year, in Kosovo in 2000 and 2003 over 300 cases each year); 3) F. tularensis subsp. mediasiatica, rarely reported, isolated only in Kazahstan and Turkmenistan; 4) F. tularensis subsp. novicida is of low virulence, isolated in USA, Canada, Spain and Australia; 5) F. tularensis subsp. philomiragia, is of low virulence, associated with salt water (Atlantic, Mediterranean). Tularemia is very rear in Macedonia, but in 1996 an

  7. Double agents and secret agents: the emerging fields of exogenous chemical exchange saturation transfer and T2-exchange magnetic resonance imaging contrast agents for molecular imaging.

    Science.gov (United States)

    Daryaei, Iman; Pagel, Mark D

    2015-01-01

    Two relatively new types of exogenous magnetic resonance imaging contrast agents may provide greater impact for molecular imaging by providing greater specificity for detecting molecular imaging biomarkers. Exogenous chemical exchange saturation transfer (CEST) agents rely on the selective saturation of the magnetization of a proton on an agent, followed by chemical exchange of a proton from the agent to water. The selective detection of a biomarker-responsive CEST signal and an unresponsive CEST signal, followed by the ratiometric comparison of these signals, can improve biomarker specificity. We refer to this improvement as a "double-agent" approach to molecular imaging. Exogenous T 2 -exchange agents also rely on chemical exchange of protons between the agent and water, especially with an intermediate rate that lies between the slow exchange rates of CEST agents and the fast exchange rates of traditional T 1 and T 2 agents. Because of this intermediate exchange rate, these agents have been relatively unknown and have acted as "secret agents" in the contrast agent research field. This review exposes these secret agents and describes the merits of double agents through examples of exogenous agents that detect enzyme activity, nucleic acids and gene expression, metabolites, ions, redox state, temperature, and pH. Future directions are also provided for improving both types of contrast agents for improved molecular imaging and clinical translation. Therefore, this review provides an overview of two new types of exogenous contrast agents that are becoming useful tools within the armamentarium of molecular imaging.

  8. Modelling User Preferences and Mediating Agents in Electronic Commerce

    NARCIS (Netherlands)

    Dastani, M.M.; Jacobs, N.; Jonker, C.M.; Treur, J.

    2005-01-01

    An important ingredient in agent-mediated electronic commerce is the presence of intelligent mediating agents that assist electronic commerce participants (e.g. individual users, other agents, organisations). These mediating agents are in principle autonomous agents that interact with their

  9. Modeling User Preferences and Mediating Agents in Electronic Commerce

    NARCIS (Netherlands)

    Dastani, M.M.; Jacobs, N.; Jonker, C.M.; Treur, J.; Dignum, F.; Sierra, C.

    2001-01-01

    An important ingredient in agent-mediated Electronic Commerce is the presence of intelligent mediating agents that assist Electronic Commerce participants (e.g., individual users, other agents, organisations). These mediating agents are in principle autonomous agents that will interact with their

  10. Towards Culturally-Aware Virtual Agent Systems

    DEFF Research Database (Denmark)

    Endrass, Birgit; André, Elisabeth; Rehm, Matthias

    2010-01-01

    Globalization leads to an increase in intercultural encounters with a risk of misunderstandings due to different patterns of behavior and understanding. Learning applications have been proposed that employ virtual agents as their primary tool. Through their embodiment, learning can be done...... in a game-like environment in a more interesting way than for example learning with a textbook. The authors support the idea that virtual agents are a great opportunity for teaching cultural awareness. Realizing this, the concept of culture needs to be translated into computational models and the advantages...... of different systems using virtual agents need to be considered. Therefore, the authors reflect in this chapter on how virtual agents can help to learn about culture, scan definitions of culture from the social sciences, give an overview on how multiagent systems developed over time and classify the state...

  11. Agent-based modeling of sustainable behaviors

    CERN Document Server

    Sánchez-Maroño, Noelia; Fontenla-Romero, Oscar; Polhill, J; Craig, Tony; Bajo, Javier; Corchado, Juan

    2017-01-01

    Using the O.D.D. (Overview, Design concepts, Detail) protocol, this title explores the role of agent-based modeling in predicting the feasibility of various approaches to sustainability. The chapters incorporated in this volume consist of real case studies to illustrate the utility of agent-based modeling and complexity theory in discovering a path to more efficient and sustainable lifestyles. The topics covered within include: households' attitudes toward recycling, designing decision trees for representing sustainable behaviors, negotiation-based parking allocation, auction-based traffic signal control, and others. This selection of papers will be of interest to social scientists who wish to learn more about agent-based modeling as well as experts in the field of agent-based modeling.

  12. Veterans and agent orange: update 2000

    National Research Council Canada - National Science Library

    Committee to Review the Health Effects in Vietnam Veterans of Exposure to Herbicides (Third Biennial Update), Division of Health Promotion and Disease Prevention

    2001-01-01

    Veterans and Agent Orange: Update 2000 examines the state of the scientific evidence regarding associations between diseases and exposure to dioxin and other chemical compounds in herbicides used in Vietnam...

  13. Ontology-based multi-agent systems

    Energy Technology Data Exchange (ETDEWEB)

    Hadzic, Maja; Wongthongtham, Pornpit; Dillon, Tharam; Chang, Elizabeth [Digital Ecosystems and Business Intelligence Institute, Perth, WA (Australia)

    2009-07-01

    The Semantic web has given a great deal of impetus to the development of ontologies and multi-agent systems. Several books have appeared which discuss the development of ontologies or of multi-agent systems separately on their own. The growing interaction between agents and ontologies has highlighted the need for integrated development of these. This book is unique in being the first to provide an integrated treatment of the modeling, design and implementation of such combined ontology/multi-agent systems. It provides clear exposition of this integrated modeling and design methodology. It further illustrates this with two detailed case studies in (a) the biomedical area and (b) the software engineering area. The book is, therefore, of interest to researchers, graduate students and practitioners in the semantic web and web science area. (orig.)

  14. Penetratin and derivatives acting as antifungal agents

    NARCIS (Netherlands)

    Masman, Marcelo F.; Rodriguez, Ana M.; Raimondi, Marcela; Zacchino, Susana A.; Luiten, Paul G. M.; Somlai, Csaba; Kortvelyesi, Tamas; Penke, Botond; Enriz, Ricardo D.

    The synthesis, in vitro evaluation, and conformational study of RQIKTWFQNRRMKWKK-NH(2) (penetratin) and related derivatives acting as antifungal agents are reported. Penetratin and some of its derivatives displayed antifungal activity against the human opportunistic pathogenic standardized ATCC

  15. Ulipristal acetate as an emergency contraceptive agent.

    Science.gov (United States)

    Martinez, Alan M; Thomas, Michael A

    2012-09-01

    Emergency contraceptive agents play a crucial role in preventing unplanned pregnancy. These agents and devices have been studied since the 1960s and have had varied results in terms of side effects and efficacy. A new oral tablet for emergency contraception (EC), ulipristal acetate (UPA) , is a selective progesterone receptor modulator and can be used up to 120 h following unprotected intercourse, without an increase in adverse effects or a decrease in efficacy. This article reviews studies that evaluate the pharmacodynamics, pharmacokinetics, clinical efficacy, and safety profile of UPA as an emergency contraceptive agent. UPA, a selective progesterone receptor modulator, is administered as a single 30 mg dose for EC. This agent provides a comparable, if not better, efficacy and side effect profile than seen with levonorgestrel or mifepristone. Because it has both agonistic and antagonistic effects on the progesterone receptor, ongoing clinical trials are documenting UPA's use for patients with endometriosis and as an extended use contraceptive.

  16. Competing intelligent search agents in global optimization

    Energy Technology Data Exchange (ETDEWEB)

    Streltsov, S.; Vakili, P. [Boston Univ., MA (United States); Muchnik, I. [Rutgers Univ., Piscataway, NJ (United States)

    1996-12-31

    In this paper we present a new search methodology that we view as a development of intelligent agent approach to the analysis of complex system. The main idea is to consider search process as a competition mechanism between concurrent adaptive intelligent agents. Agents cooperate in achieving a common search goal and at the same time compete with each other for computational resources. We propose a statistical selection approach to resource allocation between agents that leads to simple and efficient on average index allocation policies. We use global optimization as the most general setting that encompasses many types of search problems, and show how proposed selection policies can be used to improve and combine various global optimization methods.

  17. Putative neuroprotective agents in neuropsychiatric disorders.

    Science.gov (United States)

    Dodd, Seetal; Maes, Michael; Anderson, George; Dean, Olivia M; Moylan, Steven; Berk, Michael

    2013-04-05

    In many individuals with major neuropsychiatric disorders including depression, bipolar disorder and schizophrenia, their disease characteristics are consistent with a neuroprogressive illness. This includes progressive structural brain changes, cognitive and functional decline, poorer treatment response and an increasing vulnerability to relapse with chronicity. The underlying molecular mechanisms of neuroprogression are thought to include neurotrophins and regulation of neurogenesis and apoptosis, neurotransmitters, inflammatory, oxidative and nitrosative stress, mitochondrial dysfunction, cortisol and the hypothalamic-pituitary-adrenal axis, and epigenetic influences. Knowledge of the involvement of each of these pathways implies that specific agents that act on some or multiple of these pathways may thus block this cascade and have neuroprotective properties. This paper reviews the potential of the most promising of these agents, including lithium and other known psychotropics, aspirin, minocycline, statins, N-acetylcysteine, leptin and melatonin. These agents are putative neuroprotective agents for schizophrenia and mood disorders. Copyright © 2012 Elsevier Inc. All rights reserved.

  18. Agentes de software móviles

    Directory of Open Access Journals (Sweden)

    Crisman Martínez Barrera

    2001-10-01

    Full Text Available Los agentes móviles son programas de software inteligentes que realizan un objetivo que involucran desarrollos soportados en técnicas de Inteligencia Artificial, los cuales pretenden facilitar la interoperabilidad de sistemas. Este artículo define las disciplinas, plataformas y herramientas necesarias para el desarrollo de agentes móviles, sus características principales y las arquitecturas predominantes de éstas; presenta además una evaluación de sus perspectivas futuras.Mobile agents are intelligent software programs that can obtain an objective that involucrates developments supported in Artificial Intelligence techniques. These pretend to facilitate the interoperability of systems. This article defines disciplines, platforms and tools necessary for the development of mobile agents, their principal characteristics and the predominant architectures of these. A final evaluation and future perspectives are offered.

  19. Mandatory Compensation to Commercial Agents upon Termination ...

    African Journals Online (AJOL)

    Kamil Abdu Oumer

    the compensation due to the agent upon the termination of the commercial .... Virginia School of Law Legal Studies Working Papers Series, Working Paper No. ..... grant up to a one year commission if they find the circumstances equitable.67 In.

  20. Chemical Agents: Facts about Sheltering in Place

    Science.gov (United States)

    ... What CDC is Doing Blog: Public Health Matters Chemical Agents: Facts About Sheltering in Place Format: Select ... What “sheltering in place” means Some kinds of chemical accidents or attacks may make going outdoors dangerous. ...

  1. Nominaliseeritud protsessi agent meediauudistes / Reet Kasik

    Index Scriptorium Estoniae

    Kasik, Reet, 1946-

    2006-01-01

    Ajalehe "Postimees" 2005. aasta materjalile toetudes vaadeldakse, mis tüüpi on nominalisatsioonides representeeritavad protsessid ja mis kujul on esitatud protsessi agent ehk tegija. Aluseks on võetud funktsionaalse grammatika põhimõtted.

  2. Argumentation and Multi-Agent Decision Making

    OpenAIRE

    Parsons, S.; Jennings, N. R.

    1998-01-01

    This paper summarises our on-going work on mixed- initiative decision making which extends both classical decision theory and a symbolic theory of decision making based on argumentation to a multi-agent domain.

  3. Contrast Agent in Magnetic Resonance Imaging

    DEFF Research Database (Denmark)

    Vu-Quang, Hieu

    2015-01-01

    Nanoparticles have been employed as contrast agent in magnetic resonance imaging (MRI) in order to improve sensitivity and accuracy in diagnosis. In addition, these contrast agents are potentially combined with other therapeutic compounds or near infrared bio-imaging (NIR) fluorophores to obtain...... theranostic or dual imaging purposes, respectively. There were two main types of MRI contrast agent that were synthesized during this PhD project including fluorine containing nanoparticles and magnetic nanoparticles. In regard of fluorine containing nanoparticles, there were two types contrast agent...... cancer cells for cancer diagnosis in MRI. F127-Folate coated SPION were stable in various types of suspension medium for over six months. They could specifically target folate receptor of cancer cells in vitro and in vivo thus enhancing the contrast in MRI T2/T2* weighted images. These are preliminary...

  4. Production of Antimicrobial Agent by Streptomyces violachromogenes

    International Nuclear Information System (INIS)

    Ahmed, Arwa A.

    2007-01-01

    The isolation of antibiotics from microorganisms improved the discovery of novel antibiotics, which is relatively easy as compared to chemical synthesis of antimicrobial agents. This study starts from isolation and purification of the antimicrobial producing Sterptomycetes obtained from soil habitat of Yemen. The good antimicrobial producing Sterptomycetes isolate was selected from a batch of Sterptomycetes isolates then identified. This isolate has bioactivity against some G+ve and G-ve bacteria. The antimicrobial agent isolated from Streptomyces violachromogenes (isolate no.YA118) was extracted with ethyl acetate at pH 3. The residue was applied to a silica gel column chromatography and eluted stepwise with many solvent systems. The active fractions were tested with B. subtilis NCTC10400. The purification of the antibiotic has been carried out by thin layer chromatography then the physical and chemical properties were studied to identify the antimicrobial agent. The isolated antimicrobial agent is an antibiotic belonging to the neomycin group. (author)

  5. Intelligent agents in data-intensive computing

    CERN Document Server

    Correia, Luís; Molina, José

    2016-01-01

    This book presents new approaches that advance research in all aspects of agent-based models, technologies, simulations and implementations for data intensive applications. The nine chapters contain a review of recent cross-disciplinary approaches in cloud environments and multi-agent systems, and important formulations of data intensive problems in distributed computational environments together with the presentation of new agent-based tools to handle those problems and Big Data in general. This volume can serve as a reference for students, researchers and industry practitioners working in or interested in joining interdisciplinary work in the areas of data intensive computing and Big Data systems using emergent large-scale distributed computing paradigms. It will also allow newcomers to grasp key concepts and potential solutions on advanced topics of theory, models, technologies, system architectures and implementation of applications in Multi-Agent systems and data intensive computing. .

  6. Enzymatic Decontamination of Chemical Warfare Agents

    National Research Council Canada - National Science Library

    Raushel, Frank

    2000-01-01

    The primary objective of this research program is the development of a versatile enzyme-based system that is fully optimized for the decontamination, destruction, and detection of know chemical warfare agents...

  7. Behavioural domain knowledge transfer for autonomous agents

    CSIR Research Space (South Africa)

    Rosman, Benjamin S

    2014-11-01

    Full Text Available , and Behavior Transfer in Autonomous Robots, AAAI 2014 Fall Symposium Series, 13-15 November 2014 Behavioural Domain Knowledge Transfer for Autonomous Agents Benjamin Rosman Mobile Intelligent Autonomous Systems Modelling and Digital Science Council...

  8. Multi-agent sequential hypothesis testing

    KAUST Repository

    Kim, Kwang-Ki K.; Shamma, Jeff S.

    2014-01-01

    incorporate costs of taking private/public measurements, costs of time-difference and disagreement in actions of agents, and costs of false declaration/choices in the sequential hypothesis testing. The corresponding sequential decision processes have well

  9. Spions as nano-theranostics agents

    CERN Document Server

    Zarepour, Atefeh; Khosravi, Arezoo

    2017-01-01

    This Brief introduces SuperParamagnetic Iron Oxide Nanoparticles (SPIONs), the different synthesis approaches, their applications in the field of diagnostics and treatment and finally as theranostic agents in cancer.

  10. Gestión, Implementación y Control de los riesgos relacionados con la tecnología de la información en los Bancos

    Directory of Open Access Journals (Sweden)

    Mariá Florencia Gaibazzi

    2012-11-01

    Full Text Available La información es un recurso muy importante dentro de los activos de una organización, tiene un valor determinado de acuerdo al grado de criticidad que posea, por consiguiente debe ser debidamente protegida tanto interna como externamente. La seguridad de la información resguarda a la “información” de una amplia gama de amenazas, a fin de garantizar la continuidad del negocio, minimizar el daño al mismo y maximizar el retorno sobre las inversiones y las oportunidades. La seguridad de la información se logra implementando un conjunto adecuado de controles, que abarcan políticas, prácticas, procedimientos, estructuras organizacionales y funciones del software. Se deben establecer estos controles para garantizar que se logren los objetivos específicos de seguridad de la organización. Con el advenimiento de las nuevas Tecnologías Informáticas y de Comunicación (TIC, la operatoria bancaria se hizo aún más riesgosa porque al utilizar medios electrónicos para la captura, procesamiento de los datos y transmisión de la información es necesario contar con medidas adecuadas a los tiempos que corren para asegurar los tres principios básicos de seguridad: confidencialidad, integridad y disponibilidad de la información. Por todo lo expresado anteriormente y siendo el B.C.R.A. el ente regulador de la actividad financiera y supervisor de las Entidades Financieras (EF, propone ampliar la normativa vigente sobre Seguridad de la Información, actualizarla y detallar con claridad los requisitos mínimos en cuanto a la gestión, implementación y control de los riesgos relacionados con Tecnología Informática, Sistemas de Información y Recursos Asociados con el fin de que las EF implementen las mejores prácticas de control y seguridad, teniendo en cuenta el riesgo de dicha actividad, la criticidad de sus activos y la adopción de la Normativa Internacional vigente.

  11. Estágios de mudança de comportamento relacionados ao exercício físico em adolescentes doi: 10.5007/1980-0037.2010v12n5p367

    Directory of Open Access Journals (Sweden)

    Maick da Silveira Viana

    2010-01-01

    Full Text Available O presente estudo teve por objetivo analisar os estágios de mudança de comportamento (EMC relacionados aos exercícios físicos em adolescentes estudantes de escolas públicas do Município de Florianópolis/SC. Participaram do estudo 400 adolescentes com idade entre 14 e 18 anos, sendo 53,8% meninas (idade média de 16,3 anos e 46,2% meninos (idade média de 16,4 anos, selecionados aleatoriamente nas escolas estaduais que contemplavam o Ensino Médio no município de Florianópolis. As associações entre as variáveis foram verificadas por meio do teste Qui-Quadrado (α=0,05. Praticam algum tipo de exercício físico com regularidade 67,6% dos estudantes (estágios de ação e manutenção, enquanto apenas 9,8% não praticam e não pretendem praticar (estágio de pré-contemplação. Meninos praticam mais exercícios físicos do que as meninas, pois se encontram em EMC mais avançados (p<0,000. Idade, série e turno de estudo não estiveram estatisticamente associados aos EMC para a amostra geral, porém, entre os meninos, os estudantes do período matutino são mais sedentários (p=0,050. As análises evidenciam uma população que, em sua maioria, pratica algum exercício físico, porém atenção deve ser dada a minoria que apresenta comportamento sedentário, especialmente, aos que não pretendem praticar exercícios físicos. Destaca-se a importância dos EMC para uma intervenção mais efetiva em saúde, pois mesmo que um programa não torne, em um curto espaço de tempo, um indivíduo ativo, a sua evolução nos estágios é considerada positiva.

  12. Conocimientos, actitudes y prácticas relacionados con el consumo de sustancias psicoactivas en estudiantes de enfermería de una universidad del departamento del Atlántico (Colombia

    Directory of Open Access Journals (Sweden)

    Julio Melina Castrillo

    2012-01-01

    Full Text Available Objetivo: Establecer los conocimientos, actitudes y prácticas relacionados con el consumo de sustancias psicoactivas en estudiantes de enfermería de una universidad del departamento del Atlántico. Materiales y métodos: Estudio descriptivo transversal; población diana: estudiantes de primero a octavo semestre de enfermería de una universidad del departamento del Atlántico (Colombia. Fuente de información primaria, instrumento utilizado: encuesta de 37 preguntas validada. La información se procesó en el software SPSS, se tabuló en tablas de frecuencia y asociación, gráficas de barras y sectores, la información resumida se manejó en frecuencias relativas, medidas de tendencia central y se determinó significancia estadística mediante proporciones. Resultados: El 71,5% tiene conocimiento sobre la composición de las sustancias psicoactivas. El 45% está totalmente en desacuerdo con el consumo de sustancias psicoactivas para relacionarse fácilmente con la gente. El 37,2% está totalmente en desacuerdo con consumir sustancias psicoactivas para divertirse. El 90,7% está de acuerdo con la inversión de recursos económicos en programas de rehabilitación, seguimiento de la población afectada por el consumo de drogas. El 55,5 % consumé alcohol, el 22,2% consume éxtasis y el 22,2 restante consume marihuana y bazuco. Conclusiones: Se encontró un balance negativo en cuanto al consumo de sustancias psicoactivas en los estudiantes de enfermería, debido a que la gran mayoría ha consumido sustancias psicoactivas. Además de encontrarse deficiencia relacionada al conocimientos de las mismas, y en cuanto a las actitudes, se concluyó que la mayoría de los sujetos estudiados tiene actitudes favorables relacionadas con la legalización de las sustancias psicoactivas.

  13. Expressão de genes relacionados à função adrenocortical no estado de caquexia neoplásica = Expression of genes related to the adrenocortical function in the neoplastic cachexia process

    Directory of Open Access Journals (Sweden)

    Nicole de Angelis Scripes

    2009-04-01

    Full Text Available A glândula adrenal tem papel fundamental na resposta neuroendócrina,especialmente em situações em que há comprometimento da homeostasia. No processo de caquexia neoplásica, há prejuízo da homeostasia por alterações nutricionais e metabólicas do câncer em estágio avançado, envolvendo a resposta do eixo hipotálamo-hipófise-adrenal. Neste trabalho, foi utilizado um modelo animal de caquexia induzida pelo tumor de Walker-256 em ratos Wistar. Os animais (n=4 foram sacrificados dez dias após a inoculação de células tumorais e a glândula adrenal foi removida. O RNA foi extraído para o estudo da expressão de genes relacionados ao controle da esteroidogênese por RT-PCR semiquantitativa. A análise dos dados demonstrou expressão significativamente reduzida dos genes MC2R (receptor tipo 2 para melacortina, 3ßHSD I (3β-hidroxiesteroidedesidrogenase tipo I e TSPO (proteína translocadora em animais com caquexia neoplásica(valores de P=0,037; 0,0097 e 0,052, respectivamente, revelando falência do córtex da adrenal.The adrenal gland plays a crucial role in the neuroendocrine response, especially in situations where homeostasis is disturbed. In the neoplastic cachexia process, there is homeostasis impairment by nutritional and metabolic alterations of advanced-stage cancer, involving hypothalamus-pituitary-adrenal axis response. In thisassignment, an experimental model of cachexia induced by Walker-256 tumor was performed in Wistar rats. Animals (n=4 were sacrificed 10 days after inoculation of tumor cells, and the adrenal glands were excised. The RNA was isolated for the study of gene expression related to the steroidogenesis control by semi-quantitative RT-PCR. Data analysis showed a significant reduced expression of MC2R (melancortin type 2 receptor, 3ßHSD I (3-beta-hydroxysteroid dehydrogenase type I and TSPO (translocator protein genes in animals with neoplastic cachexia (P=0.037, 0.0097 and 0.052, respectively, revealing

  14. Marcadores microssatélites relacionados com a resistência à vassoura-de-bruxa do cacaueiro Microsatellite markers related to resistance of cocoa tree against witches'-broom

    Directory of Open Access Journals (Sweden)

    Rogério Mercês Ferreira Santos

    2007-08-01

    Full Text Available Os objetivos deste trabalho foram caracterizar a resistência à vassoura-de-bruxa de plantas de cacau originadas do cruzamento entre TSH 1188 e CCN 51 (população segregante, por meio de dois métodos de inoculação em condições de campo, e identificar marcadores microssatélites específicos para grupos de plantas resistentes e suscetíveis. As plantas-controle avaliadas pelos métodos de inoculação natural e inoculação artificial em campo produziram os mesmos padrões de sintomas. As plantas da população segregante também coincidiram os padrões de sintomas em 90%, por esses dois métodos. O método de inoculação artificial em campo permite detectar falso-resistentes. Dos 18 pares de primers microssatélites amplificados, 15 foram polimórficos entre os genitores, e seis entre os grupos de plantas segregantes contrastantes quanto à resistência à vassoura-de-bruxa. Foram confirmadas três marcas previamente associadas a QTL (locos para características quantitativas relacionados com a resistência à vassoura-de-bruxa, comuns a outras populações. Também foram identificados três novos QTL para esta característica, típicos desta população, o que comprova sua utilidade para o melhoramento genético do cacaueiro.The objectives of this work were to evaluate cocoa tree resistance against witches'-broom, in plants originated from the crossing between TSH 1188 and CCN 51 (segregating population, by means of two methods of inoculation in field conditions, and to identify microsatellite markers specific for resistant and susceptible plants. The control plants bore identical symptoms as the plants of the segregating population in 90% of the cases under the two methods. The method of artificial inoculation in the field allows the detection of false resistance to the disease. Of the 18 pairs of microsatellite primers amplified, 15 were polymorphic between genitors and six were polymorphic between the two groups of plants evaluated

  15. Neuromodulatory effects of caffeine and bromazepam on visual event-related potential (P300: a comparative study Efeitos neuromoduladores da cafeína e do bromazepam no potencial evocado visual relacionado a evento (P300: estudo comparativo

    Directory of Open Access Journals (Sweden)

    Mariana Montenegro

    2005-06-01

    Full Text Available The P300 component of the event-related potential (ERP is a general measurement of "cognitive efficiency". It is an index of the ability of an individual's central nervous system (CNS to process incoming information. OBJECTIVE: To compare the neuromodulatory effects of caffeine and bromazepam on the visual ERP (P300, in relation to a P300 normative database. METHOD: 15 right-handed individuals (7 male and 8 female, between 20 and 30 years of age, healthy, free of any cognitive impairment and not making use of psychoactive substances were studied. Participants were submitted to a visual discrimination task, which employed the "oddball" paradigm, after the administration of caffeine and bromazepam, in a randomized, double-blind design. RESULTS: Statistically significant differences were observed when the caffeine and bromazepam conditions were compared to the normative database. CONCLUSION: The present results suggest that caffeine and bromazepam have distinct modulatory effects on CNS functioning.O componente P300 do potencial evocado relacionado a evento é uma medida geral de "eficiência cognitiva" e um índice da qualidade do processamento e armazenamento de informações pelo sistema nervoso central (SNC. OBJETIVO: Comparar os efeitos neuromoduladores da cafeína e do bromazepam a partir do banco normativo do potencial evocado visual (P300. MÉTODO: 15 sujeitos destros (7 homens e 8 mulheres, entre 20 e 30 anos de idade, sadios, livres de qualquer déficit cognitivo e sem uso de substâncias psicotrópicas ou psicoativas foram estudados. Os sujeitos foram submetidos a uma tarefa de discriminação visual utilizando o paradigma "oddball", após a administração de uma cápsula de cafeína ou de bromazepam, em um desenho duplo-cego randomizado. RESULTADOS: Foram observadas diferenças estatisticamente significativas quando as condições cafeína e bromazepam foram comparadas com o banco normativo. CONCLUSÃO: Os resultados sugerem que a cafe

  16. Bromeliad ornamental species: conservation issues and challenges related to commercialization=Espécies ornamentais de bromélias: conservação e desafios relacionados a sua comercialização

    Directory of Open Access Journals (Sweden)

    Darcy Mitchell

    2012-01-01

    Full Text Available Bromeliads grow almost exclusively in the New World tropics and subtropics, mainly in South America in the Brazilian Atlantic Forest (ca. 1200 species. Within the last few decades, their beautiful shapes and colors, low maintenance and easy adaptability to small gardens have brought bromeliads into worldwide use as ornamental plants. While the ornamental bromeliad trade could make significant contributions to household economies in rural areas, the trade may represent a significant threat in some of the bromeliad biodiversity hotspot countries such as Brazil, Bolivia and Colombia. This paper presents an overview of production volumes, analysis of the Brazilian bromeliads trade chain – at the state, national and international levels – and recommendations to address development and conservation challenges.Bromélias crescem quase que exclusivamente nas regiões tropicais e subtropicais do Novo Mundo, ocorrendo principalmente na Floresta Atlântica brasileira na América do Sul. (ca. 1200 espécies. Nas últimas décadas, pelas suas belas formas e cores, baixa demanda de manutenção e fácil adaptabilidade a pequenos jardins, as bromélias tem sido mundialmente utilizadas como plantas ornamentais. O comércio de bromélias ornamentais pode promover significante acréscimo de renda em áreas rurais, mas por outro lado pode também significar uma ameaça à manutenção da diversidade destes recursos biológicos, especialmente em países como Brasil, Bolívia e Colômbia. Este trabalho apresenta uma caracterização geral dos volumes de produção e da cadeia brasileira de comercialização de bromélias - em nível estadual, nacional e internacional assim como recomendações para promover o desenvolvimento deste setor e superar desafios relacionados ao uso sustentável deste recurso.

  17. Redução da densidade de extrassístoles e dos sintomas relacionados após administração de magnésio por via oral

    Directory of Open Access Journals (Sweden)

    Cristina Nádja Muniz Lima De Falco

    2012-06-01

    Full Text Available FUNDAMENTO: As extrassístoles ventriculares e supraventriculares (EV e ESSV são frequentes e muitas vezes sintomáticas. O íon magnésio (Mg desempenha um papel importante na fisiologia do potencial de ação transmembrana celular e do ritmo cardíaco. OBJETIVO: Avaliar se a administração do pidolato de magnésio (PMg em pacientes com EV e ESSV tem desempenho superior ao uso do placebo (P na melhora dos sintomas e densidade das extrassístoles (DES. MÉTODOS: Estudo duplo-cego, randomizado, com 60 pacientes sintomáticos consecutivos, com mais de 240/EV ou ESSV ao Holter de 24 horas e selecionados para receber P ou PMg. Para avaliar a melhora da sintomatologia, foi feito um questionário categórico e específico de sintomas relacionados às extrassístoles. Após o tratamento, foi considerada significante uma redução de mais de 70% na DES por hora. A dose do PMg foi de 3,0 g/dia por 30 dias, equivalente a 260 mg do elemento Mg. Nenhum paciente tinha cardiopatia estrutural ou insuficiência renal. RESULTADOS: Dos 60 pacientes estudados, 33 eram do sexo feminino (55%. A faixa etária variou de 16 a 70 anos. No grupo PMg, 76,6% dos pacientes tiveram redução maior que 70%, 10% deles maior que 50% e somente 13,4% tiveram redução menor que 50% na DES. No grupo P, 40% dos pacientes tiveram melhora de apenas 30% na frequência de extrassístoles (p < 0,001. A melhora dos sintomas foi alcançada em 93,3% dos pacientes do grupo PMg, comparada com somente 16,7% do grupo P (p < 0,001. CONCLUSÃO: A suplementação de Mg via oral reduziu a DES, resultando em melhora dos sintomas.

  18. Estudo de mecanismos e fatores relacionados com o abuso sexual em crianças e adolescentes do sexo feminino Study of mechanisms and factors related to sexual abuse in female children and adolescents

    Directory of Open Access Journals (Sweden)

    Jefferson Drezett

    2001-10-01

    Full Text Available OBJETIVO: estudar mecanismos e fatores relacionados com o abuso sexual, comparando suas freqüências entre vítimas crianças e adolescentes. MÉTODOS: estudo retrospectivo de 617 vítimas de abuso sexual atendidas entre julho de 1994 e agosto de 1999 pelo Centro de Referência da Saúde da Mulher; 71 crianças (idade OBJECTIVE: to study the frequency of sexual abuse in children and adolescents and its related factors. METHODS: retrospective analysis of 617 cases of sexual abuse, assisted between July 1994 and August 1999 at the Women's Health Reference Center, divided into two groups: 71 children (age or =10 and <20 years. The analyzed variables were: sexual crime; embarrassment; presumption of violence; characteristics and number of abusers; the victim's situation at the moment of the crime; and occurrence of physical traumas. Epi Info 6 software was utilized to gather data, and the results were analyzed by the chi-square test. RESULTS: significant statistic results were found. 90.8% of the adolescents were victims of rape, and 46.5% of the children suffered sexual assault. The presupposed violence (PV was more frequent in the group of children (63.4% and a serious threat in the group of adolescents (63.2%. Innocentia consilli was exclusive PV among 100% of children and 59.5% of adolescents. 84.5% of children were molested by identifiable abusers, most frequently family members. Perpetrators were unknown in 72.3% of the cases of adolescent abuse. 42.3% of sexual abuse of children occurred in their homes, and 28.2% at the abuser's. Adolescents were approached during daily activities (34.8% and on their way to work or school (28.4%. Most patients did not have genital or extragenital trauma. CONCLUSIONS: children suffered sexual assault, perpetrated by a known abuser through presupposed violence in private places. Adolescents were raped by unknown individuals, under serious threat, in nondomestic places.

  19. Rediseñando el trabajo en las aulas universitarias: Factores relacionados con la satisfacción en estudiantes de ingeniería y administración de empresas

    Directory of Open Access Journals (Sweden)

    Juan A. Marin-Garcia

    2014-12-01

    Full Text Available Objeto: Con este trabajo se pretende analizar cómo afectan las características del contexto del aprendizaje, es decir, cómo es el trabajo de los estudiantes en la asignatura, al potencial motivador de la asignatura y a la satisfacción de los estudiantes Diseño/metodología: Mediante ecuaciones estructurales (SEM se ha analizado los datos de una muestra transversal (cursos 2008, 2009 y 2010 de 535 estudiantes de ingeniería industrial y administración de empresas, de una universidad pública española. Aportaciones y resultados: Los resultados, utilizando un instrumento validado y adaptado al mundo docente, demuestran la asociación existente entre las características del tipo de trabajo de los estudiantes, el perfil motivador de la asignatura  y la satisfacción. Limitaciones: la escala de identidad no tiene un ajuste excesivamente bueno y sus resultados deberían considerarse tentativos. La muestra es limitada para generalizar las conclusiones, debería extenderse en el futuro a otras universidades y contemplar estudiantes de posgrado. Valor añadido: en este trabajo confirmamos que se cumple el modelo JDS adaptado a la docencia. Comprobamos que las variedad, la identidad, la significación, la autonomía, la retroalimentación del puesto y la retroalimentación social  son elementos de un constructo de segundo orden que representa el perfil motivador de de la asignatura y que los valores de este constructo están relacionados positiva, significativa y sustancialmente con la satisfacción general percibida por el estudiante. También hemos comprobado que estas relaciones se mantienen en muestras de alumnos de diferentes años o de titulaciones bastante dispares. Gracias a ello, los profesionales docentes pueden utilizar el modelo de  análisis y rediseño de puesto para ayudar a favorecer la motivación y la satisfacción de sus estudiantes. 

  20. Riscos de problemas relacionados com medicamentos em pacientes de uma instituição geriátrica Drug-related problems risks in patients of a geriatric institution

    Directory of Open Access Journals (Sweden)

    Cassyano Januário Correr

    2007-03-01

    Full Text Available Em pacientes geriátricos, o uso de medicamentos leva com freqüência ao surgimento de Problemas Relacionados com Medicamentos (PRM e exige estrat��gias de prevenção da morbi-mortalidade relacionada a esses produtos. Este estudo observacional teve por objetivo avaliar prescrições e a presença de riscos de PRM em uma instituição geriátrica. Dois farmacêuticos avaliaram esquemas farmacoterapêuticos de 76 pacientes com relação a duplicidades terapêuticas, desvios de dose, medicações inadequadas e interações medicamentosas potenciais. Os pacientes utilizavam em média 3 medicamentos, principalmente do aparelho cardiovascular (36,4% e sistema nervoso central (47,8%. 13,5% dos medicamentos utilizados (n=230 foram considerados inadequados com riscos de PRM ligados principalmente à segurança da terapia. Foram identificadas 69 interações medicamentosas em 38 pacientes (51,3%, com manifestações ligadas principalmente à efetividade da terapêutica. Os resultados reforçam a importância da avaliação do processo de uso de medicamentos. Os dados apontam, ainda, a necessidade de aprofundamento de estudos de avaliação de riscos de PRM nessa população.In geriatric patients, the use of medication frequently leads to the development of drug-related problems (DRP and demands prevention strategies about morbidity and mortality related to medication. This observational study aims to evaluate the medical prescriptions and the presence of DRP risks in a geriatric institution. Two clinical pharmacists had evaluated medication regimen of 76 internal patients observing therapeutical duplicities, dose-related problems, inadequate medication and potential drug interactions. To the patients, were administrated in average 3 medications, mainly to cardiovascular system (36.4% and central nervous system (47.8%. 13.5% of the used drugs (n=230 were considered inadequate with risks of DRP, mainly related to therapy safety. 69 drug interactions