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Litter production and leaf nutrient concentration and remobilization in response to climate seasonality in the central Amazon

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Journal of Forestry Research 2024年第3期35卷 131-141页

作者： Ricardo Antonio Marenco saul alfredo.antezana-vera Daniela Pereira Dias Luiz Antonio Candido Instituto Nacional de Pesquisas da Amazonia Coordenagao de Uso da Terra e Mudanca ClimaticaAv.Andre Araujo 2936ManausAM69067-375Brazil Programa de pos-Graduagao em Agricultura no Tropico Umido Instituto Nacional de Pesquisas da Amazonia-INPAManausAMBrazil Unidade Academica de Ciencias Agrarias Universidade Federal de JataiBR 364km 195JataiGO 75801-615Brazil

Litterfall is the largest source of nutrients to for-est soils of tropical ***,variability in lit-terfall production,nutrient remobilization,and changes in leaf nutrient concentration with climate seasonality remain largely unknown for the central *** study meas-ured litterfall production,leaf nutrient remobilization,and leaf area index on a forest plateau in the central *** was measured at monthly intervals during 2014,while nitrogen,phosphorus,potassium,calcium and mag-nesium concentrations of leaf litter and canopy leaves were measured in the dry and rainy seasons,and remobilization rates *** area index was also recorded in the dry and rainy *** litterfall varied from 33.2(in the rainy season)to 87.6 g m^(-2) in the dry season,while leaf area index increased slightly in the rainy *** seasonality had no effect on concentrations of nitrogen,calcium,and magnesium,whereas phosphorous and potassium responded to rainfall seasonality *** phosphorous increased,potassium decreased during the dry *** seasons,nitrogen,potassium,and phosphorous decreased in leaf litter;calcium increased in leaf litter,while magnesium remained unaffected with leaf ***,the five nutrients had similar remobilization rates over the *** absence of climate seasonality on nutrient remobilization suggests that the current length of the dry season does not alter nutrient remobilization rates but this may change as dry periods become more prolonged in the future due to climate change.

关键词： Throughfall Nutrient cycling Climatic seasonality Leaf mass per area

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Epidemiology of ADRs in Internal Medicine, HCC

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Journal of Life Sciences 2016年第1期10卷 54-57页

作者： Alba Delia Campana S. Anthon Alvarez Arredondo J. alfredo Contreras G. S. saul Irizar S. A. MiroslavaFlores R Faculty of Medicine Autonomous University of Sinaloa Center of Research and Teaching in Health Sciences (CIDOCS) UASCA-285 M~xico

We aimed to characterize, and analyze the presence of factors such as polypharmacy and personal medical history that predispose to Adverse Drug Reactions （ADRs） and potential preventability of these. The Civil Hospital of Culiacan （HCC）, in Sinaloa, where the study was conducted has 80 beds in total, in which the Department of Internal Medicine with 24 beds： 12 lbr men and 12 for women, we found the part of the share to contribute to the 200,000 cases of ADRs that according with the WHO each of the countries members report ever）, year to the Uppsala Monitoring Centre. We have not only but also ordered frequency of drugs, pathologies, and analytical tests of the hospitalized patients.

关键词： ADRs hospitalized patients polypharmacy pharmacovigilance analytical tests.

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