Browsing Teses e dissertações by Title
Now showing items 809-828 of 1065
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Padronização de extratos de folhas de amoreira com potencial fitoestrogênico para uso no tratamento dos sintomas do climatério
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 13/08/2015)Mulberry leaves are commonly used by women to alleviate hot flashes, shivering and night sweats. These symptoms appear due to the irregular estrogen secretion by ovaries during climacteric and are often alleviated using ... -
Papaína imobilizada em partículas magnéticas: novos modelos de triagem de ligantes
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 29/03/2019)Cathepsins, human lysosomal enzymes, are associated with the development of various diseases, and cruzaine is an important enzyme in the development of the protozoan Trypanosoma cruzi, causes Chagas' disease. Cysteine ... -
Parametrização de ligantes em Co(salen) aplicados na despolimerização de ligninas
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 26/05/2022)Since the industrial revolution, fossil sources such as oil, natural gas or coal have become indispensable resources for human development with a variety of uses: from energy generation to drugs production and household ... -
Parametrização de ligantes em reações catalisadas por metais de transição
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 24/04/2023)The approach of statistical methods capable of accurately predicting the relationship between catalyst structure and reactivity represents a major impact on reaction development, since both reactivity and selectivity of ... -
Perfil cromatográfico e análise multivariada para o controle de qualidade de amostras comerciais do gênero Phyllanthus (quebra-pedra)
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 05/12/2008)This work present the development and application of methods by High Performance Liquid Chromatography (HPLC) to the quality control of vegetable samples known as stone breaker , that correspond to Phyllanthus species, ... -
Perfil dos cursos de formação de professores dos programas de licenciatura em química das instituições públicas de ensino superior da região nordeste do Brasil
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 28/05/2010)This study aimed to determine the profile of Chemistry´s courses of Public Institutions of higher education in Brazilian Northeastern, referencing the current educational paradigms and also the legal guidelines regarding ... -
Perfil químico e caracterização estrutural de metabólitos na polpa do açaí (Euterpe oleracea Mart.) por RMN
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 06/07/2018)Acai is a widely consumed fruit in the North Region of Brazil and has gained consumers in other regions of the country and abroad. With the increasing acai pulp demand, quality control measures become necessary to improve ... -
Perfil químico e dinâmica espacial e temporal de flavonoides de soja [Glycine Max (L.) Merr.].
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 11/03/2021)The soybean (Glycine max) is a legume species originally from China, belonging to the Fabaceae family. This crop is exposed throughout its cycle to attack by different species of insect pests, which can affect the plant ... -
Performance optimization in redox flow batteries: a computational approach
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 22/02/2022)Redox flow batteries (RFBs) emerge as an alternative technology for the storage of energy on a large scale. The main characteristics of this type of device are related to its unique design, which provides scalability, ... -
Perovskitas baseadas no PZT e PLZT sintetizadas usando o método dos complexos oxidantes de peróxido (OPM)
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 17/03/2011)Were synthesized by the OPM, the solid solutions of Pb(Zr1-xTix)O3 with x = 0.8, 0.48 and 0.2, and also the lanthanum modified lead zirconate titanate compositions (Pb0.95La0.05) (Zr1-xTix)O3 with x = 0.8 and 0.2. This ... -
Pesquisa participativa no Rio São Francisco, região de Três Marias-MG: contaminação ambiental e comunidade pesqueira
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 12/05/2007)The increasing public recognition of environmental degradation and inequitable use of natural resources drives the search for environmentally sustainable and socially equitable resource utilization. In this search context ... -
Photocatalytic controlled oxidation reaction of methane
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 28/06/2023)The CH4 partial oxidation into value-added chemicals by solar means has been discussed as alternative for emission abatement, a fundamental topic for sustainable production with lower global warming gas emissions in future. ... -
Photochemical access to noncanonical amino acids and modified peptides
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 26/04/2024)This thesis holds new opportunities on the synthetic state-of-the-art for the photochemical elaboration of noncanonical amino acids and exogenous peptides as judged by (i) the incorporation of a desired structural motif ... -
Photoredox-mediated aminoalkylation and carbamoylation of azomethine imines
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 25/08/2021)Over the past decade, the organic synthetic community has witnessed the emergence of a new and complementary approach to the conventional radical chemistry. Photochemistry has proven to be a powerful and more sustainable ... -
Picramnia glazioviana and Picramnia bahiensis as source for new natural products. Insecticidal and fungicidal evaluations and High-Resolution Bioassay/HPLC-HRMS-SPE/NMR studies
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 27/04/2018)Leaf-cutting ants of the genus Atta and Acromyrmex are considered the most important pests in agriculture, pastures, and reforestation programs due to the defoliation caused by the uncontrolled herbivory that the plants ... -
Pigmentos cerâmicos nanométricos a base de CeO2 dopado com Pr6O11, NiO e CoO.
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 30/09/2005)In the last few years, the study of ceramic materials has increased very fast, mainly studies related to advanced ceramics. The several applications of these materials as ceramic pigments in nanometric scale justify more ... -
Pigmentos nanométricos de alumina dopada com ferro, níquel e manganês
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 08/11/2006)In the recent years, the necessity of ceramic pigments production with new shades and variable distributions of particle size has increased considerably. The color and size of pigment particles are responsible for important ... -
Planejamento de inibidores da cruzaína baseado em fragmentos
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, , 27/07/2011)The Chagas disease, described in 1909 by the Brazilian sanitary physician, scientist and bacteriologist Dr. Carlos Chagas, is caused by the Trypanosomatid parasite Trypanosoma cruzi. Current treatments involve the use of ... -
Planejamento e avaliação de fragmentos moleculares como inibidores da enzima cruzaína
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 24/08/2015)The available drugs for treating Chagas disease are not effective, therefore the development of new therapies is needed. Cruzain is the major Trypanosoma cruzi cysteine protease, the causative agent of the disease, and ... -
Planejamento experimental aplicado aos estudos de degradação forçada do fármaco Ticagrelor
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Química - PPGQ, Câmpus São Carlos, 31/08/2020)Stability indicating tests are an essential part during pharmaceutical drug production, besides being a mandatory step for the regulation and approval from the regulatory agencies. Forced degradation consist of an exposure ...