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Search Results: 1 - 10 of 198779 matches for " Nelson-Goens G. Christina "
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Desenvolvimento da vida emocional durante o segundo ano de vida: narrativas e sistemas dinamicos
Pantoja, Andréa P. F.;Nelson-Goens, G. Christina;
Psicologia: Reflex?o e Crítica , 2000, DOI: 10.1590/S0102-79722000000200007
Abstract: emotions have been investigated traditionally as internal and pre-existing states manifested in the face. this paper proposes an alternative perspective by illustrating the theoretical and methodological utility of the concepts of narratives and dynamic systems to the study of emotions. emotions are conceived as emerging from the interaction between the individual and the environment. we consider the body, vocal, and facial actions of both partners simultaneously, as well as the communicative contexts created during their interaction. we use the method of narrative analysis to capture the emergent and social nature of emotions in one mother-infant dyad during the second year of life. we aim to elucidate how the development of emotions emerge from the subtle transformations in the daily relationship of the mother-infant dyad.
Desenvolvimento da vida emocional durante o segundo ano de vida: narrativas e sistemas dinamicos
Pantoja Andréa P. F.,Nelson-Goens G. Christina
Psicologia: Reflex?o e Crítica , 2000,
Abstract: Tradicionalmente, a emo o tem sido concebida como um estado interno e preexistente manifestado na face. Assim, a emo o tem sido analisada através do estudo detalhado da face. O presente trabalho prop e uma perspectiva alternativa, defendendo a utilidade teórica e metodológica dos conceitos de narrativas e sistemas dinamicos para o estudo da emo o. Partindo desta perspectiva, a emo o é concebida enquanto emergente da intera o do indivíduo com seu meio. Em nossas investiga es, enfatizamos, simultaneamente, as a es corporais, vocais, e faciais de ambos parceiros bem como os contextos comunicativos construídos durante a intera o. Utilizamos o método de análise de narrativas aplicado a dados longitudinais de uma díade m e-bebê durante o segundo ano de vida. Procuramos ilustrar como o desenvolvimento das emo es emerge das sutis transforma es que ocorrem no relacionamento social entre o bebê e sua m e.
Evidence for Maternal-Fetal Genotype Incompatibility as a Risk Factor for Schizophrenia
Christina G. S. Palmer
Journal of Biomedicine and Biotechnology , 2010, DOI: 10.1155/2010/576318
Abstract: Prenatal/obstetric complications are implicated in schizophrenia susceptibility. Some complications may arise from maternal-fetal genotype incompatibility, a term used to describe maternal-fetal genotype combinations that produce an adverse prenatal environment. A review of maternal-fetal genotype incompatibility studies suggests that schizophrenia susceptibility is increased by maternal-fetal genotype combinations at the RHD and HLA-B loci. Maternal-fetal genotype combinations at these loci are hypothesized to have an effect on the maternal immune system during pregnancy which can affect fetal neurodevelopment and increase schizophrenia susceptibility. This article reviews maternal-fetal genotype incompatibility studies and schizophrenia and discusses the hypothesized biological role of these ‘‘incompatibility genes’’. It concludes that research is needed to further elucidate the role of RHD and HLA-B maternal-fetal genotype incompatibility in schizophrenia and to identify other genes that produce an adverse prenatal environment through a maternal-fetal genotype incompatibility mechanism. Efforts to develop more sophisticated study designs and data analysis techniques for modeling maternal-fetal genotype incompatibility effects are warranted.
Parental relocation Free movement rights and joint parenting
Christina G. Jeppesen de Boer
Utrecht Law Review , 2008,
Abstract: As joint parental authority increasingly becomes the legal norm applied in situations where the parents do not live together, for example, after divorce or the breakup of a relationship, the settlement of disputes regarding the concrete exercise of parental authority gain relevance. A common dispute concerns the relocation of the resident parent. How do the courts deal with relocation disputes? Is relocation dealt with even-handedly between resident and non-resident parents? Do the same principles apply to relocation inside and outside the jurisdiction? This article compares the approaches taken in Dutch and Danish law, as well as the Principles on Parental Responsibilities drafted by the European Commission on Family Law.
The nonlinear stability of rotationally symmetric spaces with low regularity
Philippe G. LeFloch,Christina Sormani
Mathematics , 2014,
Abstract: We consider rotationally symmetric spaces with low regularity, which we regard as integral currents spaces or manifolds with Sobolev regularity and are assumed to have nonnegative scalar curvature. Relying on the flat distance and on Sobolev norms, we establish several nonlinear stability estimates about the ``distance'' between a rotationally symmetric manifold and the Euclidian space, which are stated in terms of the ADM mass of the manifold. Importantly, we make explicit the dependencies and scales involved in this problem, particularly the ADM mass, the depth, and the CMC reference hypersurface. Several notions of independent interest are introduced in the course of our analysis, including the notion of depth of a manifold and a scaled version of the flat-distance, the D-flat distance as we call it, which involves the diameter of the manifold. Finally we prove a compactness theorem for sequences of regions with uniformly bounded depth, whose outer boundaries have fixed area and an upper bound on Hawking mass.
Epidemiología clínica
Nelson Gómez Viera
Revista Cubana de Medicina , 1997,
Abstract:
Deterioro cognitivo: Avances y controversias
Nelson Gómez Viera
Revista Cubana de Medicina , 2003,
Abstract:
DE LA RABIA HUMANA DE ORIGEN CANINO Y OTRAS VERGüENZAS
Nelson Alvis G
Revista MVZ Córdoba , 2006,
Abstract: Colombia invierte cerca de diez puntos de su PIB en salud, sin embargo, sus indicadores desalud pública desdicen de la efectividad de su sistema sanitario. A las ya altas tasas deprevalencia e incidencia de patologías controlables o erradicables, como malaria, dengueclásico y hemorrágico, fiebre amarilla, tuberculosis, cólera y leishmaniasis, se agrega otravergüenza: los brotes de rabia humana de origen canino recientemente observados en laregión caribe colombiana.La rabia es una enfermedad letal transmitida al hombre por animales domésticos o silvestresproducida por el virus rábico perteneciente al género Lyssavirus de la familia Rhabdoviridae,prevenible mediante vacunación. Los mecanismos para evitar muertes por rabia estándesarrollados y bien descritos: a) cortar la cadena de transmisión del virus en especiesdomésticas (vacunación, manejo de poblaciones de perros y atención de focos); b) aplicaciónoportuna de tratamientos pre y post exposición a personas en riesgo; c) Vigilanciaepidemiológica y monitoreo y control de la enfermedad en especies silvestres.En el informe final sobre “Evaluación del Programa Nacional de rabia de Colombia”, realizadopor la organización Panamericana de la Salud y el Ministerio de la Protección Social en 2003se destaca: “….la rabia transmitida por el perro aún constituye una situación preocupanteen Colombia, además de los pocos casos registrados en los últimos a os. Persisten situacionesde circulación viral, fundamentalmente en los departamentos de la costa atlántica querequieren de la aplicación de medidas de emergencia..” (1). Sin embargo, al parecer talesmedidas quedaron solo en simples recomendaciones de política sin que las mismas hubiesensido tenidas en cuenta, con los resultados ya conocidos y sin que aparecieran los responsables.En el citado informe se revela que entre los a os 1995 a 2003 la región de la región caribecolombiana presentó el mayor número de defunciones por rabia humana del período(17casos); seguida de la región occidental (5 casos), la Orinoquia (3 casos), la Amazonía (2casos) y la Región Central, un sólo caso en el 2003. Es decir todo estaba anunciado.Los muertos se presentaron como consecuencia de la mordedura de perros infectados con elvirus de la enfermedad, en diciembre de 2006. El Instituto Nacional de Salud confirmó loscasos y estimó éste como el brote mas grave, luego del ocurrido entre mayo y julio del 2004en el que se notificaron 14 casos en el Bajo Baudó, por mordedura de murciélago. Cabeaclarar que se trata de un tipo de virus distinto al transmitido por caninos.Según informes de la Secreta
A 3D Freehand Ultrasound System for Multi-view Reconstructions from Sparse 2D Scanning Planes
Honggang Yu, Marios S Pattichis, Carla Agurto, M Beth Goens
BioMedical Engineering OnLine , 2011, DOI: 10.1186/1475-925x-10-7
Abstract: We present a low-cost and flexible ultrasound imaging system that integrates several image processing components to allow for 3D reconstructions from limited numbers of 2D image planes and multiple acoustic views. Our approach is based on a 3D freehand ultrasound system that allows users to control the 2D acquisition imaging using conventional 2D probes.For reliable performance, we develop new methods for image segmentation and robust multi-view registration. We first present a new hybrid geometric level-set approach that provides reliable segmentation performance with relatively simple initializations and minimum edge leakage. Optimization of the segmentation model parameters and its effect on performance is carefully discussed. Second, using the segmented images, a new coarse to fine automatic multi-view registration method is introduced. The approach uses a 3D Hotelling transform to initialize an optimization search. Then, the fine scale feature-based registration is performed using a robust, non-linear least squares algorithm. The robustness of the multi-view registration system allows for accurate 3D reconstructions from sparse 2D image planes.Volume measurements from multi-view 3D reconstructions are found to be consistently and significantly more accurate than measurements from single view reconstructions. The volume error of multi-view reconstruction is measured to be less than 5% of the true volume. We show that volume reconstruction accuracy is a function of the total number of 2D image planes and the number of views for calibrated phantom. In clinical in-vivo cardiac experiments, we show that volume estimates of the left ventricle from multi-view reconstructions are found to be in better agreement with clinical measures than measures from single view reconstructions.Multi-view 3D reconstruction from sparse 2D freehand B-mode images leads to more accurate volume quantification compared to single view systems. The flexibility and low-cost of the proposed sy
The Relationship between Sympatric Defended Species Depends upon Predators' Discriminatory Behaviour
Christina G. Halpin, John Skelhorn, Candy Rowe
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0044895
Abstract: Toxic prey species living in the same environment have long been thought to mutually benefit from having the same warning signal by sharing the education of na?ve predators. In contrast, ‘saturation theory’ predicts that predators are physiologically limited by the amount of toxin that they can eat in a given time period. Therefore, sympatric species that contain the same toxin should mutually benefit from reduced predation even when they are visually distinct, reducing the benefits to visual mimicry. For the first time, we found that mutualism can occur between unequally defended prey that are visually distinct, although the benefits to each prey type depends on the predators' abilities and/or motivation to visually discriminate between them. Furthermore, we found that this variability in predatory behaviour had a significant impact on the benefits of mimicry for unequally defended prey. Our results demonstrate that variability in the foraging decisions of predators can have a significant effect on the benefits of shared toxicity and visual mimicry between sympatric species, and highlights the need to consider how predators exert selection pressures on models and mimics over their entire lifetimes.
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