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Now showing items 581-590 of 606
Uma avaliação qualitativa da presença de micotoxinas e micro-organismos toxigênicos em insumos e em cervejas artesanais
(Universidade Federal de São Carlos, 2019-12-06)
Consisting primarily of water, hops, malted and non-malted cereals as well as yeast, beer is one of the most consumed alcoholic fermented beverages in the world. Although there are risk laws that compromise product quality, ...
Estudos bioquímicos e cinéticos de acetilcolinesterases de formigas cortadeiras (Atta sexdens)
(Universidade Federal de São Carlos, 2017-09-29)
Acetylcholinesterase (AChE) (EC 3.1.1.7) is the enzyme responsible for catalyzing the hydrolysis of the neurotransmitter acetylcholine leading to the release of acetate and choline. In insects, acetylcholine is one of the ...
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, 2018-04-27)
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 ...
Reações fotoquímicas promovidas por luz visível para a síntese de compostos heterocíclicos
(Universidade Federal de São Carlos, 2017-07-27)
In the last decades, the emphasis and application of the principles of Green Chemistry have inspired a change of behavior, both in industry and academy, towards a more sustainable chemistry aiming the synthesis of the ...
Electrochemistry and STM-assisted Molecular electronics study of bimetallic hexaphyrins
(Universidade Federal de São Carlos, 2019-09-23)
ELECTROCHEMISTRY AND STM-ASSISTED MOLECULAR ELECTRONICS STUDY OF BIMETALLIC HEXAPHYRINS. The electron transport in porphyrinoids are related to several bioprocesses in Nature, from conversion from solar energy to chemical ...
Obtenção de derivados de compostos isolados de Zingiber officinale por biotransformação e semi-síntese e avaliação frente à cisteinil-proteases
(Universidade Federal de São Carlos, 2016-07-01)
Several aromatic polyketide derivatives from Ginger (Zingiber officinale), like zingerone,
6-gingerol and 6-shogaol were obtained by biocatalytic reactions and semi-synthesis and
both their antifungal and cysteine-proteinase ...
Avaliação do comportamento de BTEX e seus metabólitos de biodegradação em solos: estudos de remedição em microcosmos
(Universidade Federal de São Carlos, 2015-08-28)
The monoaromatic hydrocarbons composed by benzene, toluene, ethylbenzene and xylenes isomers (BTEX), are commonly found near local oil refineries, filling stations, or around pipelines, as a result ofleaks and/or spills. ...
Síntese e caracterização de vanadato de prata decorado com hidroxiapatita
(Universidade Federal de São Carlos, 2018-03-26)
The continued need for improved technological devices makes the development of advanced nanostructured materials urgently. Hydroxyapatite [HA, Ca10(PO4)6(OH)2] is a biocompatible material well known for its optical properties ...
Produção de Na-β″-alumina e o seu transporte iônico do Na+
(Universidade Federal de São Carlos, 2019-02-25)
In the present doctorate thesis, in order to study the Na+ ion transport in Na-βʺ-alumina(cr), we started by studying the production stages of Na-βʺ-alumina(cr) sodium ion conductive membranes. In order to do so, we studied ...
Busca de substâncias inseticidas e fungicidas para controle de formigas-cortadeiras através do estudo fitoquímico biomonitorado de espécies de Picramnia e avaliação da atividade bacteriostático em Xanthomonas citri subsp citri
(Universidade Federal de São Carlos, 2019-10-31)
The search for insecticide and fungicide substances to control leaf-cutting ants through biomonitored phytochemical study of Picramnia species and evaluation of bacteriostatic activity in Xanthomonas citri. Subsp citri. ...