155 resultados para normalize
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A political interview intended to justify refugee detention in Australia is analysed using an interdisciplinary critical discourse method. Barthesian semiotic theory in which the 'Other' is the foundation of national myth provides a context for a close textual analysis using Hallidayan linguistics. The lexico-grammatical analysis identifies features associated with processes (verbs), grammatical metaphors, and nominals. Essentially, the effect is to blunt agency and distance the speaker, but, more importantly, create a classificatory system that allows humans to be treated in certain ways according to bureaucratic procedures. The discursive strategy is labelled technologizing the inhumane because it objectifies the subjective, turning profound human issues into technical issues. Analysed discursively, the interview reveals how discursive control is established and how democracy is represented as impeding the orderly procedure of 'objective' procedures.
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This paper describes the development of a tree-based decision model to predict the severity of pediatric asthma exacerbations in the emergency department (ED) at 2 h following triage. The model was constructed from retrospective patient data abstracted from the ED charts. The original data was preprocessed to eliminate questionable patient records and to normalize values of age-dependent clinical attributes. The model uses attributes routinely collected in the ED and provides predictions even for incomplete observations. Its performance was verified on independent validating data (split-sample validation) where it demonstrated AUC (area under ROC curve) of 0.83, sensitivity of 84%, specificity of 71% and the Brier score of 0.18. The model is intended to supplement an asthma clinical practice guideline, however, it can be also used as a stand-alone decision tool.
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Background - Amygdala-orbitofrontal cortical (OFC) functional connectivity (FC) to emotional stimuli and relationships with white matter remain little examined in bipolar disorder individuals (BD). Methods - Thirty-one BD (type I; n = 17 remitted; n = 14 depressed) and 24 age- and gender-ratio-matched healthy individuals (HC) viewed neutral, mild, and intense happy or sad emotional faces in two experiments. The FC was computed as linear and nonlinear dependence measures between amygdala and OFC time series. Effects of group, laterality, and emotion intensity upon amygdala-OFC FC and amygdala-OFC FC white matter fractional anisotropy (FA) relationships were examined. Results - The BD versus HC showed significantly greater right amygdala-OFC FC (p = .001) in the sad experiment and significantly reduced bilateral amygdala-OFC FC (p = .007) in the happy experiment. Depressed but not remitted female BD versus female HC showed significantly greater left amygdala-OFC FC (p = .001) to all faces in the sad experiment and reduced bilateral amygdala-OFC FC to intense happy faces (p = .01). There was a significant nonlinear relationship (p = .001) between left amygdala-OFC FC to sad faces and FA in HC. In BD, antidepressants were associated with significantly reduced left amygdala-OFC FC to mild sad faces (p = .001). Conclusions - In BD, abnormally elevated right amygdala-OFC FC to sad stimuli might represent a trait vulnerability for depression, whereas abnormally elevated left amygdala-OFC FC to sad stimuli and abnormally reduced amygdala-OFC FC to intense happy stimuli might represent a depression state marker. Abnormal FC measures might normalize with antidepressant medications in BD. Nonlinear amygdala-OFC FC–FA relationships in BD and HC require further study.
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Genetic and environmental factors interact to influence vulnerability for internalizing psychopathology, including Major Depressive Disorder (MDD). The mechanisms that account for how environmental stress can alter biological systems are not yet well understood yet are critical to develop more accurate models of vulnerability and targeted interventions. Epigenetic influences, and more specifically, DNA methylation, may provide a mechanism by which stress could program gene expression, thereby altering key systems implicated in depression, such as frontal-limbic circuitry and its critical role in emotion regulation. This thesis investigated the role of environmental factors from infancy and throughout the lifespan affecting the serotonergic (5-HT) system in the vulnerability to and treatment of depression and anxiety and potential underlying DNA methylation processes. First, we investigated the contributions of additive genetic vs. environmental factors on an early trait phenotype for depression (negative emotionality) in infants and their stability over time in the first 2 years of life. We provided evidence of the substantial contributions of both genetic and shared environmental factors to this trait, as well as genetically- and environmentally- mediated stability and innovation. Second, we studied how childhood environmental stress is associated with peripheral DNA methylation of the serotonin transporter gene, SLC6A4, as well as long-term trajectories of internalizing behaviours. There was a relationship between childhood psychosocial adversity and SLC6A4 methylation in males, as well as between SLC6A4 methylation and internalizing trajectory in both sexes. Third, we investigated changes in emotion processing and epigenetic modification of the SLC6A4 gene in depressed adolescents before and after Mindfulness-Based Cognitive Therapy (MBCT). The alterations from pre- to post-treatment in connectivity between the ACC and other network regions and SLC6A4 methylation suggested that MBCT may work to optimize the connectivity of brain networks involved in cognitive control of emotion as well as also normalize the relationship between SLC6A4 methylation and activation patterns in frontal-limbic circuitry. Our results from these three studies strengthen the theory that environmental influences are critical in establishing early vulnerability factors for MDD, driving epigenetic processes, and altering brain processes as an individual undergoes treatment, or experiences relapse.
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PURPOSE: To investigate cardiomyopathy in offspring in a mouse model of pregestational type 1 diabetic pregnancy.
METHODS: Pregestational diabetes was induced with STZ administration in female C57BL6/J mice that were subsequently mated with healthy C57BL6/J males. Offspring were sacrificed at embryonic day 18.5 and 6-week adolescent and 12-week adult stages. The size and number of cardiomyocyte nuclei and also the extent of collagen deposition within the hearts of diabetic and control offspring were assessed following cardiac tissue staining with either haematoxylin and eosin or Picrosirius red and subsequently quantified using automated digital image analysis.
RESULTS: Offspring from diabetic mice at embryonic day 18.5 had a significantly higher number of cardiomyocyte nuclei present compared to controls. These nuclei were also significantly smaller than controls. Collagen deposition was shown to be significantly increased in the hearts of diabetic offspring at the same age. No significant differences were found between the groups at 6 and 12 weeks.
CONCLUSIONS: Our results from offspring of type 1 diabetic mice show increased myocardial collagen deposition in late gestation and have increased myocardial nuclear counts (hyperplasia) as opposed to increased myocardial nuclear size (hypertrophy) in late gestation. These changes normalize postpartum after removal from the maternal intrauterine environment.
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Despite a rich body of research on the conflict and peace process in Northern Ireland, the ‘disappearances’ carried out by Republican armed groups have so far escaped scrutiny. In this article I examine how the Republican movement has framed the rationale behind ‘disappearing’ as a rational response to informing and as an example of historical continuity. In doing so, Republicans appear to attempt to confer legitimacy on their choice of target and normalize the use of the practice within a Republican framework. However, these rationales incorporate techniques of neutralization and attempts to contextualize the ‘disappearances’ in such a way as to distance the Irish Republican Army from agency. Such distancing speaks to a third, overarching rationale for ‘disappearing’: the avoidance of an embarrassment that has continued into the postconflict period. I consider why Republicans persist in claiming the ‘disappeared’ were legitimate targets, killed by a method for which there is historical precedent, when such framing left them open to criticism at a time when they were seeking to demonstrate that they had left violence behind. I conclude that Republican attempts to satisfy two audiences resulted in a gulf between their engagement in the process of recovering remains and their rhetoric surrounding this issue. In so doing, light is shed on some of the challenges the Republican movement faced in their transition away from violence. More broadly, the value of unpicking the framing of key actors in transitional processes is illuminated.
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[EN]Facial image processing is becoming widespread in human-computer applications, despite its complexity. High-level processes such as face recognition or gender determination rely on low-level routines that must e ectively detect and normalize the faces that appear in the input image. In this paper, a face detection and normalization system is described. The approach taken is based on a cascade of fast, weak classi ers that together try to determine whether a frontal face is present in the image.
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An interdisciplinary field trip to a remote marine lab joined graduate students from fine arts and natural resource science departments to think creatively about the topic of climate change and science communication. We followed a learning cycle framework to allow the students to explore marine ecosystems and participate in scientific lectures, group discussions, and an artist-led project making abstract collages representing climate change processes. Students subsequently worked in small groups to develop environmental communication material for public visitors. We assessed the learning activity and the communication product using pre- and post-field trip participant surveys, focus group discussions, and critiques by art and communication experts of the products. Significant changes in knowledge about climate change occurred in program participants. Incorporating artists and the arts into this activity helped engage multiple senses and emphasized social interaction, as well as providing support to participants to think creatively. The production of art helped to encourage peer learning and normalize the different views among participants in communicating about climate change impacts. Students created effective communication products based on external reviews. Disciplinary differences in cultures, language, and standards challenged participating faculty, yet unanticipated outcomes such as potentially transformative learning and improved teacher evaluations resulted.
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Esta tese foi produzida no Programa de Pós -Graduação em Educação em Ciências : Química da Vida e Saúde , na linha de pesquisa "Educação científica : implicações das práticas científicas na constituição dos sujeitos ". O objetivo desta pesquisa é analisar a rede de enunciações sobre o sexting em alguns materiais (reportagens, programas televisivos, postagens em blogs e comentários realizados por leitores dos sites) presentes na internet e investigar as condições de emergência da prática do sexting. O sexting é um termo criado nos Estados Unidos da América, que deriva das expressões sex (sexo) e texting (envio de mensagens). Esse conceito descreve uma prática social e cultural que está sendo difundida mundialmente: esta consiste em produzir e enviar fotos e vídeos sexuais, sensuais e eróticos entre conhecidos/as, amigos/as, namorados/as, “ficantes” etc.. Nesta pesquisa, utilizamos como aporte teórico os estudos de Pierre Lévy, André Lemos, Paula Sibilia, Guy Debord, Hannah Arendt, Michel Foucault e Zygmunt Bauman. Tais autores ajudam-nos a pensar que o sexting emerge devido a alguns acontecimentos sociais, culturais, históricos etc., que vêm provocando alguns deslocamentos em nossa sociedade. Para proceder com tal pesquisa, utilizamos a internet como campo empírico. Em nossa busca, encontramos 48 artefatos culturais que discutem, de alguma forma, sobre sexting. Dentre estes, 37 comentam sobre vídeos caseiros que mostram relações sexuais, 8 discutem sobre o fenômeno sexting e 3 debatem sobre a produção de fotos sensuais. Para análise dos dados, utilizamos algumas ferramentas foucaultianas, especialmente os conceitos de discurso, dispositivo e enunciado. Ao olharmos os materiais, percebemos que os/os adolescentes vêm se utilizando das tecnologias digitais para visibilizarem a sua sexualidade, o que nos dá indícios de que estas vêm possibilitando a constituição de jornalistas cidadãos/ãs. Além disso, evidenciamos que as fotos e vídeos dos/as adolescentes foram produzidos em comum acordo entre eles/as. Muitos dessas fotos e vídeos, foram disseminados pelos próprios sujeitos que aderiram a essa prática. Assim, a exposição da sexualidade, por meio do sexting, tem sido realizada com o propósito de adquirir visibilidade e de tornar-se a personalidade do momento. Entendemos que essa vontade de escancarar a sexualidade, por meio das tecnologias digitais, está vinculada à sociedade do espetáculo, que manifesta a necessidade de tornar-se visível. Além disso, notamos que essa prática está relacionada à escola, pois muitos dos casos relatados ocorreram no interior dessa instituição ou tiveram uma repercussão nesse ambiente. Em muitos casos, a escola era culpabilizada pelos casos de sexting que envolviam seus/sua alunos/as. No entanto, são os pais o foco de maiores críticas pela mídia massiva, pois, para essa instância, são estes os maiores responsáveis pela disciplinarização desses corpos. Evidenciou-se também que os/as praticantes do sexting sofreram micropenalidades, as quais tinham como objetivo corrigir suas condutas. Nesse sentido, entendemos o sexting como uma atualização do dispositivo da sexualidade, pois este coloca a sexualidade – a qual, durante a modernidade sólida, constituía-se como algo exclusivamente do âmbito privado – em evidência nos espaços públicos. Ao mesmo tempo, verificamos que algumas práticas disciplinares ainda buscam governar e normalizar a sexualidade dos sujeitos. A análise do material empírico possibilitou-nos verificar dois enunciados que fazem parte do discurso do sexting. O primeiro destes é que, na contemporaneidade, aparecer é uma condição de existência; o outro é que a sexualidade é entendida como algo que deve ser regulado, governado e normalizado. Consideramos importante centrarmos os estudos no sexting, pois entendemos que essa prática vem contribuindo para o surgimento de outros modos de viver e entender a sexualidade, pois o sexting enquadra a sexualidade como algo a ser exibido e mostrado para todos/as.
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As Microcistinas são heptapeptídios cíclicos produzidos como metabólitos secundários por diferentes espécies de cianobactérias, sendo relevantes pelo seu potencial hepatotóxico. Peixes apresentam estratégias bioquímicas para detoxificar contaminantes ambientais, incluindo a ativação de enzimas de fase II de biotransformação, que incluem as isoformas de glutationa S-transferase (GST). As GST catalizam a conjugação de glutationa reduzida (GSH) com uma variedade de xenobióticos, incluindo as microcistinas. O presente estudo avaliou os níveis transcricionais de quinze isoformas de GST a fim de identificar isoformas possivelmente envolvidas na detoxificação de contaminantes ambientais como a microcistina-LR (MC-LR) em Danio rerio. A técnica de PCR em tempo real (RT-qPCR) foi utilizada para avaliação dos níveis transcricionais, permitindo análise das GST em diferentes órgãos, abundância e a ativação/repressão das isoformas de GST pela exposição à MC-LR. Foram avaliados os possíveis efeitos causados em brânquia e fígado após exposição por 24 hs às concentrações de 5 µg.L-1 e 50 µg.L-1 de MC-LR. Baseado nos scores de estabilidade para oito genes normalizadores, foram selecionados glicose-6-fosfato desidrogenase (g6pdh), β-actina1 e beta-2-microglobulina (b2m); b2m, alfa-tubulina 1 (tuba) e β- actin1; e tuba, b2m e g6pdh, para normalização dos níveis trancricionais de GST para distribuição órgão-específica, abundância e efeito da MC-LR em brânquia e fígado, respectivamente. A avaliação transcricional da distribuição órgão-específica revelou níveis significativos de gstal e gstk1.1 no fígado; gstp1 e gstp2 em brânquia; mgst3a, gstr1, gstm2, gstm33, gstp1, gstp2 e gstk1.1 no intestino; gstm2, gstm3 e gstal no olho e gstt1a e gsta2.1 no cérebro. Considerando os níveis de transcritos para um dado órgão, gstk1.1, gstal, gstp1 e gstt2 foram mais abundantes nos órgãos de detoxificação, tais como o fígado, brânquias e intestino, enquanto gstt1a e gsta2.1 foram mais abundantes no rim. Em brânquia, gsta2.1 e gstt1b foram reprimidas por 5 µg.L-1 de MC-LR e mgst1.1 foi reprimida em 50 µg.L-1 de MC-LR. No fígado, as isoformas gst2.2 e gstp2 foram reprimidas em ambas as concentrações, gstal foi reprimida em 5 µg.L-1, e gstt1a e gstk1.1 foram reprimidas em 50 µg.L-1 de MC-LR. As isoformas gstal, gstr1, gstp1, mgst3a, gstm1, gstm2 e gstm3 não foram alteradas pela exposição a MC-LR. Os resultados obtidos fornecem informações para a escolha de isoformas específicas de GST possivelmente envolvidas na detoxificação/toxicidade de MC-LR, a serem melhores caracterizadas ao nível protéico e também contribui para a escolha de genes normalizadores a serem utilizados em outros estudos da mesma natureza
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International audience
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El propósito de este artículo es práctico: enseñar al usuario de Winisis a reformatear las bases de datos diseñadas e implementadas en cualquier formato, normalizado o no, convirtiéndolas al formato de interés de la unidad de información.Winisis es un paquete que permite utilizar cualquier nomenclatura en la definición de las etiquetas que identifican los campos. Este aspecto es una ventaja y una desventaja porque permite libertad en la selección del formato a utilizar, pero, se generan una gran diversidad de formatos en las unidades de información, dificultando la compatibilidad en los sistemas automatizados de catalogación, la normalización y la transferencia efectiva de la información entre unidades de información.Algunos problemas que enfrentan los bibliotecólogos en su trabajo cotidiano al normalizar la información son por ejemplo:a) la diversidad de bases de datos sin normalización, b) la variación entre formatos, c) los diferentes números, etiquetas y nombres de los campos que integran las bases de datos, e incluso bases de datos creadas con diferentes versiones de Microisis; d) un catálogo automatizado en un formato sin normalización; e) para la participación en una red y exige la reconversión del catálogo al formato común de la red. En algunos casos se ha optado por digitar de nuevo la información en el nuevo formato, sin embargo, ante esta situación, Microisis y Winisis dispone de un recurso denominado "Tabla de Selección de Campos para reformateo".
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En el campo bibliotecológico para desarrollar instrumentos de trabajo que nos permitan comunicarnos con las demás unidades y clientes de información, debemos pensar en normalizar nuestros procesos.Normalizar, en el sentido más amplio, significa seguir reglas que hagan un registro uniforme en cualquier lugar del mundo. Esto se logra mediante la aplicación de códigos y normas que han sido aceptadas internacionalmente por los organismos creados para este fin.El valor de la normalización estriba en evitar la duplicación de los esfuerzos de la catalogación en las diferentes unidades de información documental y facilitar el intercambio de datos bibliográficos tan pronto como sea posible. También, cosiste en darle al cliente la posibilidad de localizar la información en un a forma homogénea que obvie las barreras idiomáticas.
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Bodies On the Line: Violence, Disposable Subjects, and the Border Industrial Complex explores the construction of identity and notions of belonging within an increasingly privatized and militarized Border Industrial Complex. Specifically, the project interrogates how discourses of Mexican migrants as racialized, gendered, and hypersexualized “deviants” normalize violence against border crossers. Starting at Juárez/El Paso border, I follow the expanding border, interrogating the ways that Mexican migrants, regardless of sexual orientation, have been constructed and disciplined according to racialized notions of “sexual deviance." I engage a queer of color critique to argue that sexual deviance becomes a justification for targeting and containing migrant subjects. By focusing on the economic and racially motivated violence that the Border Industrial Complex does to Mexican migrant communities, I expand the critiques that feminists of color have long leveraged against systemic violence done to communities of color through the prison industrial system. Importantly, this project contributes to transnational feminist scholarship by contextualizing border violence within the global circuits of labor, capital, and ideology that shape perceptions of border insecurity. The project contributes an interdisciplinary perspective that uses a multi-method approach to understand how border violence is exercised against Mexicans at the Mexico-US border. I use archival methods to ask how historical records housed at the National Border Patrol Museum and Memorial Library serve as political instruments that reinforce the contemporary use of violence against Mexican migrants. I also use semi-structured interviews with nine frequent border crossers to consider the various ways crossers defined and aligned themselves at the border. Finally, I analyze the master narratives that come to surround specific cases of border violence. To that end, I consider the mainstream media’s coverage, legal proceedings, and policy to better understand the racialized, gendered, and sexualized logics of the violence.
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Purpose: To investigate the effect of Astragalus membranaceus (Fisch.) Bunge. extract (AMBE) on streptozotocin-induced diabetic rats. Methods: The aqueous extract of AMB was obtained by steeping the dried Astragalus membranaceus (Fisch.) Bunge. in water at 60 oC three times, each for 1 h, before first drying in an oven at 100 oC and then freeze-drying the last extract thus obtained. Diabete model rats was induced by a single intraperitoneal injection of a freshly prepared solution of streptozotocin (50 mg/kg). The rats were randomly divided into 6 groups of ten rats each: negative control group, normal control group, reference group (glibenclamide1 mg/kgbody weight) as well as AMB extract groups, namely, 40, 80 and 160 mg/kg body weight. Antihyperglycemic effect was measured by blood glucose and plasma insulin levels. Oxidative stress was evaluated in liver and kidney by antioxidant markers, viz, lipidperoxidation (LPO), superoxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GPx) and catalase (CAT), while blood serum levels of creatinine and urea were also determined in both diabetic control and treated rats. Results: Compared with diabetic rats, oral administration of AMBE at a concentration of 160 mg/kg daily for 30 days showed a significant decrease in fasting blood glucose (109.438 ± 3.52, p < 0.05) and increased insulin level (13.96 ± 0.74, p < 0.05). Furthermore, it significantly reduced biochemical parameters (serum creatinine, 0.86 ± 0.29, p < 0.05) and serum urea (45.14 ± 1.79, p < 0.05). The treatment also resulted in significant increase in GSH (49.21 ± 2.59, p < 0.05), GPx (11.96 ± 1.16, p < 0.05), SOD (14.13 ± 0.49, p < 0.05), CAT (83.25 ± 3.14, p < 0.05) level in the liver and kidney of diabetic rats. Conclusion: The results suggest that AMBE may effectively normalize impaired antioxidant status in streptozotocin-induced diabetes in a dose-dependent manner. AMBE has a protective effect against lipid peroxidation by scavenging free radicals and is thus capable of reducing the risk of diabetic complications.