998 resultados para Toxicidade Teses
Resumo:
Ps-graduao em Biologia Geral e Aplicada - IBB
Resumo:
Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
Resumo:
Ps-graduao em Biologia Geral e Aplicada - IBB
Resumo:
Este trabalho teve como objetivo identificar e quantificar os constituintes dos leos essenciais de Illicum verum, Ageratum conyzoides, Piper hispidinervum e Ocotea odorifera, bem como avaliar a toxicidade para o pulgo-verde Schizaphis graminum. A qualificao dos constituintes foi realizada por meio de um cromatgrafo gasoso + espectrmetro de massas, e a quantificao, por um cromatgrafo gasoso + detector de ionizao de chama, ambos com uma coluna DB5. O mtodo de hidrodestilao promoveu um rendimento (p/p) de 3,81% para I. verum, 0,46% para A. conyzoides, 2,85% para P. hispidinervum e 0,68% para O. odorfera. J os componentes majoritrios foram: precoceno (87,0%) e (E)-cariofileno (7,1%) para A. conyzoides; (E)-anetol (90,4%), limoneno (2,6%) e metil-chavicol (1,3%) para I. verum; metil-eugenol (81,2%) e safrol (10,6%) para Ocotea odorfera; e safrol (82,5%) e -terpinoleno (13,4%) para P. hispidinervum. Pelos testes de toxicidade aguda (24 horas) com folhas de sorgo ou papel-filtro contaminados, verificou-se que o leo de A. conyzoides foi o mais txico para o pulgo, com CL50 de 7,13 e 7,08 L leo/cm2 respectivamente, seguido por O. odorifera com CL50 de 11,80 e 103,00 L leo/cm2 respectivamente; I. verum de 51,80 L leo/cm2 em ambos os substratos; e o menos txico foi o leo essencial de P. hispidinervum, com CL50 de 62,50 e 143,00 L leo/cm2, respectivamente. Dessa maneira, sugere-se que o uso dos leos essenciais pode representar uma nova ferramenta em programas de manejo integrado de pragas.
Resumo:
The objective of this study was to evaluate the effects of dimethyl sulfoxide (DMSO) treatment on aspects of renal function, serum profile, total blood count parameters and clinical condition of health or chronic kidney disease (CKD) dogs. The evaluations were done before, during and after the administration of DMSO 10% at a dose of 0.5g kg-1, each 24h, for three days. DMSO resulted in some adverse effects in both healthy and CKD dogs, however the effects were more frequent and worse in CKD dogs. Despite these adverse effects, both groups don't have contraindications to use the drug in a short time. The severity of adverse effects related to the DMSO and its possible association with death in stage 4 CKD dogs, are contraindications for the drug in this group of patients.
Resumo:
O objetivo deste trabalho foi caracterizar o gene vip3A de Bacillus thuringiensis e verificar a toxicidade da protena Vip3Aa50 a larvas da lagarta-do-cartucho (Spodoptera frugiperda) e da lagarta-da-soja (Anticarsia gemmatalis). O gene vip3A foi amplificado por PCR, com iniciadores especficos, e gerou um fragmento de 2.370 pb. Esse fragmento foi clonado em vetor pGEM-T Easy e, em seguida, sequenciado, subclonado em vetor de expresso pET-28a (+) e inserido em clulas de Escherichia coli BL21 (DE3). A expresso da protena Vip3Aa50 foi induzida por isopropil--D-1-tiogalactopiranosdeo (IPTG), visualizada em SDS-PAGE e detectada por Western blot. Os ensaios de toxicidade revelaram alta atividade da protena Vip3Aa50 contra as larvas neonatas da lagarta-da-soja e da lagarta-do-cartucho, com CL50 de 20,3 e 79,6 ng cm-2, respectivamente. O gene vip3Aa50 um novo gene da classe vip3A.
Resumo:
Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
Resumo:
Ps-graduao em Agronomia (Gentica e Melhoramento de Plantas) - FCAV
Resumo:
Ps-graduao em Agronomia (Entomologia Agrcola) - FCAV
Resumo:
Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)
Resumo:
Ps-graduao em Bases Gerais da Cirurgia - FMB
Resumo:
Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
Resumo:
Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
Resumo:
The interview has been a widely used procedure of research in humanities. Despite the frequent use, researches are not always supported in the literature on research methodology. The aim of this study was to analyze how the interview was used in dissertations and theses in a graduate Program in Education at a university in Sao Paulo state. This study examined 167 final papers developed in to period of five years. Variables focused were: justification for the use of interview, type of interview used, guide elaboration and adaptation, kind of analysis, among others. The results showed that it is still necessary to incorporate the contents of the research methodology underlying the use of the interview to achieve the scientific rigor for this procedure.
Resumo:
The Assistive Technology makes the lives of people without disabilities more practical, but for people with disabilities it can make things possible. For these individuals can provide the conditions, making their limitations are not obstacles to their social and personal empowerment, and may contribute to their effective participation in tasks that were previously impossible, such as remaining seated correctly. A segment on which the necessary assistive technology works, is the adaptation of furniture such as chairs, tables, chairs-to-wheels for individuals with disabilities, as well as cerebral palsy. The study aimed to conduct a survey and brief description of theses and dissertations produced in Brazil on furniture adapted for students with cerebral palsy. We made searching in databases of libraries of major universities and federal state national banks, theses and dissertations. Nine studies were selected for description. It was concluded that there is a considerable array of professionals, both in engineering as the field of rehabilitation, to contribute in the adaptation, creation and even the manufacture of furniture for children with cerebral palsy and that the securities most studied are the chairs and their components.