529 research outputs found

    Avaliacao da deficiencia subclínica de zinco em vacas de cria e a relacao com a higidez de seus bezerros.

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    De um modo geral, as concentracoes de zinco nas braquiarias sao bastante baixas, nao atendendo as necessidades de bovinos em pastejo na maioria das categorias. As vacas de cria formam a categoria do rebanho mais predisposta a esse tipo de deficiencia, por seus elevados requisitos nutricionais, ao tempo que permanecem no rebanho, e por serem destinadas a elas geralmente as piores areas de pastagens. Resultados de analises de forrageiras nativas e cultivadas das areas de cerrado, realizadas no laboratorio da Embrapa Gado de Corte, demonstraram que 90% das amostras apresentaram teores de Zn abaixo do nível considerado minimo (20 ppm) para um bom desempenho animal. O principal objetivo e evidenciar a relacao entre a suplementacao de zinco das vacas e a resposta do sistema imunologico de bezerros.bitstream/item/105024/1/COT65.pdfCNPGC

    Catálogo de fava (Phaseolus lunatus L.) conservada na Embrapa.

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    The translation, validity and reliability of the German version of the Fremantle Back Awareness Questionnaire

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    Background: The Fremantle Back Awareness Questionnaire (FreBAQ) claims to assess disrupted self-perception of the back. The aim of this study was to develop a German version of the Fre-BAQ (FreBAQ-G) and assess its test-retest reliability, its known-groups validity and its convergent validity with another purported measure of back perception. Methods: The FreBaQ-G was translated following international guidelines for the transcultural adaptation of questionnaires. Thirty-five patients with non-specific CLBP and 48 healthy participants were recruited. Assessor one administered the FreBAQ-G to each patient with CLBP on two separate days to quantify intra-observer reliability. Assessor two administered the FreBaQ-G to each patient on day 1. The scores were compared to those obtained by assessor one on day 1 to assess inter-observer reliability. Known-groups validity was quantified by comparing the FreBAQ-G score between patients and healthy controls. To assess convergent validity, patient\u27s FreBAQ-G scores were correlated to their two-point discrimination (TPD) scores. Results: Intra- and Inter-observer reliability were both moderate with ICC3.1 = 0.88 (95%CI: 0.77 to 0.94) and 0.89 (95%CI: 0.79 to 0.94), respectively. Intra- and inter-observer limits of agreement (LoA) were 6.2 (95%CI: 5.0±8.1) and 6.0 (4.8±7.8), respectively. The adjusted mean difference between patients and controls was 5.4 (95%CI: 3.0 to 7.8, p\u3c0.01). Patient\u27s FreBAQ-G scores were not associated with TPD thresholds (Pearson\u27s r = -0.05, p = 0.79). Conclusions: The FreBAQ-G demonstrated a degree of reliability and known-groups validity. Interpretation of patient level data should be performed with caution because the LoA were substantial. It did not demonstrate convergent validity against TPD. Floor effects of some items of the FreBAQ-G may have influenced the validity and reliability results. The clinimetric properties of the FreBAQ-G require further investigation as a simple measure of disrupted self-perception of the back before firm recommendations on its use can be made

    ANÁLISE EXPLORATÓRIA DOS POTENCIAIS EFEITOS DAS MUDANÇAS CLIMÁTICAS NOS "VALES DA UVA GOETHE"

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    The future of agriculture has been conditioned by uncertainties about the effects of climate change. Thus, the main goal of this work is to develop an exploratory analysis of the potential impacts of climate change in dynamics in the vitiviniculture in the region bounded by the Indication of Origin of Vales da Uva Goethe. The analysis was developed based on direct consultation at producers and production and climate data. The results indicate that only share of producers has related changes in the quantity and quality of the grapes to the effects of climate change. However, there was an actual change in climate. The average monthly minimum temperatures increased from 5.75°C to 8.30°C 1924-2012, which can increase the probability of occurrence of disease and pests associated with high average temperatures.O futuro da agricultura está condicionado as incertezas envolvidas em relação aos efeitos das mudanças climáticas. Deste modo, o objetivo principal deste trabalho é desenvolver uma análise exploratória a respeito dos potenciais impactos decorrentes da mudança na dinâmica climática na vitivinicultura na região delimitada pela Indicação de Procedência dos Vales da Uva Goethe. A análise foi desenvolvida com base em consulta direta aos produtores e dados climáticos e da produção da região. Os resultados indicam que apenas parcela dos produtores relaciona as variações na quantidade e na qualidade das uvas aos efeitos das mudanças climáticas. Todavia, constatou-se uma efetiva alteração no clima. As temperaturas médias mínimas mensais aumentaram de 5,75° C para 8,30° C entre 1924 a 2012, o que pode elevar a probabilidade de ocorrência de doenças e pragas associadas às altas temperaturas médias.El futuro de la agricultura está condicionado las incertidumbres sobre los efectos del cambio climático. Por lo tanto, el objetivo principal de este trabajo es desarrollar un análisis exploratorio de los impactos potenciales del cambio climático en la dinámica de la viticultura en la región limitada por la Indicación del Origen de Vales da Uva Goethe. El análisis se desarrolló con base en la consulta directa con los productores y de los datos de la producción y climáticos. Los resultados indican que sólo una parte de los productores en relación con los cambios en la cantidad y calidad de la uva a los efectos del cambio climático. Sin embargo, hubo un cambio real en el clima. Las temperaturas mínimas promedio mensual aumentó de 5,75°C para 8,30°C entre 1924-2012, lo que puede aumentar la probabilidad de ocurrencia de enfermedades y plagas asociado con altas temperaturas medias

    Biological properties of natural dyes

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    El propósito del presente trabajo es evaluar el aumento en el uso de colorantes naturales en la industria alimentariay la posibilidad de desarrollar nuevos medicamentos gracias a sus diversas propiedades biológicas. La presenterevisión aborda las principales actividades biológicas observadas en los carotenoides y las antocianinas y poneénfasis en el amplio uso del extracto de achiote o bija (Bixa orellana L.) y de la curcumina (Curcuma longa) en estasactividadesThe aim of the present work is to evaluate the increase uses of natural colorants in the nourishing industry and in thepromising of new medicines due its several biological properties. In this review the main biological activities observedin the carotenóids and the anthocyianins are boarded, with emphasis in the wide use of the urucum‘s extract from Bixaorellana L.) and of curcumin from Curcuma longa in these activities

    host extracellular to systemic effects of SARS-CoV-2 infection

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    Funding Information: The opinions expressed in this article are those of the authors and do not reflect the view of the National Institutes of Health, the Department of Health and Human Services, the National Science Foundation, or the United States government. APK’s research is supported by the Department of Defense and Swezey & Jewell, Moore and MacKenzie Research Fund. Funding Information: The opinions expressed in this article are those of the authors and do not reflect the view of the National Institutes of Health, the Department of Health and Human Services, the National Science Foundation, or the United States government. APK’s research is supported by the Department of Defense and Swezey & Jewell, Moore and MacKenzie Research Fund. Funding Information: This work was supported by supplemental funds for COVID-19 research from Translational Research Institute of Space Health through NASA Cooperative Agreement NNX16AO69A (T-0404) to AB, and by a NASA Space Biology Postdoctoral Fellowship (80NSSC19K0426) and Human Research Program Augmentation Award (80NSSC19K1322) to SAN. Publisher Copyright: © 2023, The Author(s).COVID-19, the disease caused by SARS-CoV-2, has caused significant morbidity and mortality worldwide. The betacoronavirus continues to evolve with global health implications as we race to learn more to curb its transmission, evolution, and sequelae. The focus of this review, the second of a three-part series, is on the biological effects of the SARS-CoV-2 virus on post-acute disease in the context of tissue and organ adaptations and damage. We highlight the current knowledge and describe how virological, animal, and clinical studies have shed light on the mechanisms driving the varied clinical diagnoses and observations of COVID-19 patients. Moreover, we describe how investigations into SARS-CoV-2 effects have informed the understanding of viral pathogenesis and provide innovative pathways for future research on the mechanisms of viral diseases.publishersversionpublishe
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