Análise da rentabilidade de animais em pastagem de braquiária no outono-inverno.

bitstream/item/111337/1/04-analise-marlon.pd

Potencial produtivo de sorgo sacarino em dois solos e épocas de semeadura.

bitstream/item/111771/1/52-potencial-valdecir.pd

Concentração de flúor em diferentes espécies de pastagens da região carboelétrica de Candiota, RS.

  Previous studies shower that native pasture in the “coal energetic” region of Candiota, RS/ BRAZIL was considerably contaminated by fluorine. In this work 21 different species of native pasture plants were indentificated and their fluorine concentrations evaluated. The determinations were performed by ion- selective electrode technique isto the resulting solutions of pasture sample decomposition with a H202 + HNO3 MIXTURE. Pasture samples collected at three different sites from the vicinity of the coal- fired power plant (UTPM) showed values between 2.17 and 15.18ppm of F-. The fluorine concentrations of the pastures from Candiota were higher than the measured levels in reference samples. The different absorption and retention ability of this element by the studied species is evidenced by the variability of the measured concentration levels.Estudos anteriores demonstraram uma considerável contaminação de pastagens da região carboelétrica de Candiota, RS. Neste trabalho 21 espécies de pastagens nativas desta região foram identificadas e analisadas quanto a seus teores de flúor. A determinação deste elemento foi feita por meio da técnica de eletrodo íon-seletivo em soluções resultantes da decomposição de amostras de pastagens com mistura HNO3 + H2O2. Amostras coletadas em três pontos das vizinhanças da usina termoelétrica (UTM) acusaram valores de referência. A diferenciada capacidade de absorção e de retenção deste elemento pelas espécies estudadas fica evidenciada pela variabilidade dos níveis de concentração medidos

Comitê Local de Gestão Ambiental - CLGA.

Projeto/Plano de Ação: 11.11.11.111

Novel image–novel location object recognition task sensitive to age-related cognitive decline in nondemented elderly

Traditional tests used in the clinic to identify dementia, such as the mini-mental state examination (MMSE), are useful to identify severe cognitive impairments but might be less sensitive to detect more subtle age-related cognitive changes. Previously, the novel image–novel location (NINL) object recognition test was shown to be sensitive to detect effects of apolipoprotein E4, a risk factor for developing age-related cognitive decline and Alzheimer’s disease, in nondemented elderly. In the present longitudinal study, performance on the MMSE and the NINL tests were compared over a 4-year period. Individual NINL scores over this period were highly correlated. In addition, while MMSE scores did not change over the 4-year period, NINL scores did. In a final testing session of a subset of the participants, NINL scores correlated with logical memory and word recall lists, cognitive tasks used to detect dementia in the clinic, as well as clinical dementia rating scales. These results support that the NINL might be a valuable tool to assess age-related cognitive decline