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Busca de compostos inseticidas: estudo de espécies do gênero Trichilia (Meliaceae)
(Universidade Federal de São Carlos, 2006-05-15) Matos, Andréia Pereira; Fernandes, João Batista; https://lattes.cnpq.br/269133607745960; https://lattes.cnpq.br/6155202940087696
This work describes the results of the search for insecticidal compounds from the Meliaceae family. The samples assayed against fall armyworm Spodoptera frugiperda were the hexane, methanol and hydromethanol extracts of twigs, leaves, seeds, aril and exocarp of T. catigua; twigs, leaves, fruits, seeds, aril and exocarp of T. claussenii and twigs, leaves and fruits of T. elegans. The hexane and methanol extracts of leaves, hexane of twigs and methanol of fruits from T. claussenii showed to possess the higher insecticidal activity against S. frugiperda. Nevertheless, the hexane and methanol extracts of fruits from T. elegans showed the highest rate of larval mortality (100 %). The hydromethanol extract of T. elegans showed moderate insecticidal activity and also showed growth inhibition and antifeedant activities. The active extracts were fractionated and the chemical study led to isolation of 20 compounds, including limonoids, triterpenes, coumarins, steroids and one sesquiterpene. From the hexane extract of leaves from T. claussenii were isolated the steroids β-sitosterol, stigmasterol, campesterol and sitostenone; the triterpenoids α-amyrin, β-amyrin, lupeol, lupenone, in addition to the cycloartane triterpene 24-methylen-26- hydroxycicloartan-3-on and sesquiterpene criptomeridiol. From the methanol extract of leaves of T. claussenii were isolated the steroids 24-methylen-3 β,4 β,22 α- trihydroxy-colesterol and 3- β-O- β-D-glucopyranosilsitosterol. From the methanol extract of fruits from T. elegans were isolated the coumarins 6,7- dimethoxycoumarin, 6-methoxy-7-hydroxycoumarin e 7-hydroxycoumarin. The same coumarins and the steroids were also isolated from the hexane extract of fruits from T. elegans. The limonoids cedrelone and 11 β-methoxycedrelone were isolated from the hexane extract of aril from T. catigua. Limonoids methylangolensate together with the photogedunin epimeric mixture were isolated from the methanol extract of aril from T. catigua. This is first report of the isolation of limonoids from T. catigua. Triterpens isolated from Cedrela fissilis and limonoids isolated from Cipadessa fruticosa (Meliaceae) were tested against S. frugiperda. Among them odoratol showed the best results (insecticidal activity, growth inhibition and antifeedant). Febrifugin A showed the highest rate of mortality of total cycle (at 50 mg kg-1) of 73.3%.
Análise exploratória da prática da melhoria contínua em empresas fornecedoras do setor automobilístico e de bens de capital certificadas pela norma ISO 9001:2000
(Universidade Federal de São Carlos, 2006-05-15) Gonzalez, Rodrigo Valio Dominguez; Martins, Manoel Fernando; https://lattes.cnpq.br/3921504261628850
The strong competition, prominent by the globalized dispute, stipulate that the organizations establish innovations much more frequent and rapid in order to attend the technological, economic and political changes which the society goes through. In this context, the continuous improvement of products and productive processes, which determines incremental and constant changes, is necessary to maintain the competitive company. The need of the organizations to emphasize the customers satisfaction makes the ISO 9001 (International Organization for Standardization) quality system to overview its approach, considering in its requirements this subject with the continuous improvement as well as management for processes. In spite of the norm demands a systemic and structured practice, the continuous improvement activities needs initiatives development, on behalf of the organizations, which goes further than programs and techniques, considering also cultural and behavioral aspects which allows the supported continuous improvement of products and processes. In conclusion, it can be pointed out that the norm ISO 9001:2000 relates only what to do and not how to proceed in order to ensure that the company really accomplishes the continuous improvement of its processes. Therefore, the main goal of this research is to analyses the practice of the continuous improvement, identifying the aspects that promote it, related to the individual culture and behavior as well as the organization as a whole. This work describes the results of an exploratory qualitative research accomplished in supplier companies of capital goods and automotive sectors, certified by the norm ISO 9001, analyzing how they promote its continuous improvement programs, considering the cultural development. Afterwards, considerations are accomplished through the examined companies to evaluate the differences identified among the sector organizations presented, concerning the practice of the continuous improvement and the cultural development which support it.
Direito e política na constituição dos direitos do trabalho: a trajetória institucional do TST desde 1946 e seus debates doutrinários do último governo militar à constituinte de 87/88.
(Universidade Federal de São Carlos, 2006-05-15) Freitas, Lígia Barros de; Noronha, Eduardo Garuti; https://lattes.cnpq.br/6908348693613769
The main objective of this research is to present and analyse the debates which happen in the Tribunal Superior do Trabalho TST (High Labour Court), superior organ of the Brazilian Labour Justice from 1979 to 1988, i. e., from the period of political opening to the National Constituent Assembly. This study tried to draw the issues that gained notoriety in the Labour Justice at the moment of the democracy consolidation which culminated with the approval of the New Federal Constitution and which is its correlation with the debates of the Political Science of the time. Thus, our aim is to establish the relationship between the fields of Law and Politics.