Multiple logistic regressions: controlling factors in applications to soil class prediction.

Métodos mais eficazes para determinação do padrão de distribuição de classes de solo na paisagem precisam ser avaliados visando suprir a demanda por mapas de solo em escalas regional e global. Neste estudo, Regressões Logísticas Múltiplas foram utilizadas como modelos preditores em uma aplicação de Mapeamento Digital de Solos. Os modelos foram gerados utilizando um mapa de solos existente como variável dependente e atributos de terreno como variáveis independentes, o que possibilitou determinar a probabilidade de encontrar classes de solo na paisagem no primeiro e no segundo nível categórico do SiBCS. A qualidade dos mapas preditos foi verificada por meio da matriz de contingência. A classe dos Argissolos foi predita corretamente, em relação ao mapa original, em aproximadamente 85 %. As classes de solos hidromórficos (Planossolos e Gleissolos) foram preditas corretamente em 75 %. Houve confundimento dos modelos para as classes que ocupam posições muito semelhantes na paisagem. Foi verificado também que classes de solo pouco representativas na paisagem não são adequadamente espacializadas em razão da sensibilidade dos modelos logísticos à proporção relativa das amostras usadas para treinar os modelos

Towards a genome-wide transcriptogram: the Saccharomyces cerevisiae case

A genome modular classification that associates cellular processes to modules could lead to a method to quantify the differences in gene expression levels in different cellular stages or conditions: the transcriptogram, a powerful tool for assessing cell performance, would be at hand. Here we present a computational method to order genes on a line that clusters strongly interacting genes, defining functional modules associated with gene ontology terms. The starting point is a list of genes and a matrix specifying their interactions, available at large gene interaction databases. Considering the Saccharomyces cerevisiae genome we produced a succession of plots of gene transcription levels for a fermentation process. These plots discriminate the fermentation stage the cell is going through and may be regarded as the first versions of a transcriptogram. This method is useful for extracting information from cell stimuli/responses experiments, and may be applied with diagnostic purposes to different organisms

Ceratoplastia com enxerto autógeno lamelar livre de córnea fixado com adesivo de cianoacrilato em cães

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Ceratoplastia com enxerto pediculado de conjuntiva fixado com adesivo de cianoacrilato em cães

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AÇÕES DO PROJETO COLETA SELETIVA SOLIDARIA DENTRO E FORA DA UNIVERSIDADE

O projeto coleta seletiva solidária com o inicio em 2008 tem como objetivo possibilitar espaços dinâmicos de diálogo entre as comunidades científicas, organizações de catadores, lideranças de bairros e de organizações públicas e privadas, com foco na inclusão social produtiva de catadores e catadoras em programas de coleta seletiva de resíduos sólidos urbanos recicláveis no município de Criciúma e na AMREC

Effect of ω-conotoxin MVIIA and Phα1β on paclitaxel-induced acute and chronic pain

AbstractThe treatment with the chemotherapeutic agent paclitaxel produces a painful peripheral neuropathy, and is associated with an acute pain syndrome in a clinically significant number of patients. However, no standard therapy has been established to manage the acute pain or the chronic neuropathic pain related to paclitaxel. In the present study, we evaluated the analgesic potential of two N-type voltage-gated calcium channel (VGCC) blockers, ω-conotoxin MVIIA and Phα1β, on acute and chronic pain induced by paclitaxel. Adult male rats were treated with four intraperitoneal injections of paclitaxel (1+1+1+1mg/kg, in alternate days) and the development of mechanical hyperalgesia was evaluated 24h (acute painful stage) or 15days (chronic painful stage) after the first paclitaxel injection. Not all animals showed mechanical hyperalgesia 24h after the first paclitaxel injection, but those that showed developed a more intense mechanical hyperalgesia at the chronic painful stage. Intrathecal administration (i.t.) of ω-conotoxin MVIIA (3–300pmol/site) or Phα1β (10–300pmol/site) reduced the mechanical hyperalgesia either at the acute or at the chronic painful stage induced by paclitaxel. When administered at the acute painful stage, ω-conotoxin MVIIA (300pmol/site, i.t.) and Phα1β (300pmol/site, i.t.) prevented the worsening of chronic mechanical hyperalgesia. Furthermore, Phα1β (30-300pmol/site, i.t.) elicited less adverse effects than ω-conotoxin MVIIA (10-300 pmol/site, i.t.). Taken together, our data evidence the involvement of N-type VGCC in pain sensitization induced by paclitaxel and point out the potential of Phα1β as a safer alternative than ω-conotoxin MVIIA to treat the pain related to paclitaxel

Avaliação do Cenário Agropecuário Atual de Assentamentos Rurais do MATOPIBA.

Land use and suitability are essential tools for territorial planning of rural settlement. This work describes an analysis of these factors in a group of 18 MATOPIBA consolidated rural settlements created more than 10 years ago. These settlements are located in 12 different cities, 1 in Bahia, 6 in Maranhão and 11 in Tocantins, summarizing more than 77 thousand hectares and sheltering almost one thousand families. Regional scale data allows an overview of the situation. A land use analysis indicates a majority of natural vegetation and pasture, which represents 56% and 36%, respectively. Land suitability presents that 63% of the area is suitable for crops use and 36% for pasture. The intensive use for crops heavily depends on the use of technology. This can be a limiting factor for the development of many rural settlements. The intensive use to the land for agriculture heavily depends on the technology application. These results provide a background to discussions about suitable land use and regional development

Manual de competição de solos.

Este manual busca apresentar informações sobre as competições de solos para o público brasileiro, os procedimentos e regras usualmente empregadas, contribuindo para a sua divulgação e implementação.1. ed

Caracterização do gene 25k FP de Anticarsia gemmatalis nucleopolyhedrovirus.

bitstream/CENARGEN/24691/1/bp044.pd