Buscar
Itens para a visualização no momento 2791-2800 of 4090
Atividade antimicrobiana e antibiofilme de porfirinas catiônicas meso-tetra (piridil) contendo cisplatina
(Universidade Federal de Santa Maria, 2022-09-29)
Biofilms are responsible for up to 80% of antimicrobial-resistant nosocomial infections. Most of these infections are associated with the use of medical devices such as urinary catheters, and in this context, it is estimated ...
Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
(Universidade Federal de Santa Maria, 2022-11-28)
The complexity of integrated energy systems, with centralized load and generation, generally results from their operation, coordination and planning. In addition, an electric system with multiple energy generation sources ...
Perfil eletroforético das proteínas do plasma seminal e sua relação com a congelabilidade do sêmen bovino
(Universidade Federal de Santa Maria, 2001-12-07)
The objective of this study was to evaluate the protein profile of bovine seminal plasma
using two dimensional polyacrilamide gel electrophoresis (2D PAGE) and to find out if any of these
proteins was correlated with ...
Proposta, análise e implementação de técnicas de comutação sob tensão nula aplicadas a fontes cc-cc isoladas para telecomunicações
(Universidade Federal de Santa Maria, 2003-08-13)
Dc-dc isolated converters with Zero-Voltage-Switching are proposed and studied in this
thesis. Special attention is focused on converters with series switches connections, which
allow the use of switches designed for ...
Procedimentos para a determinação de cádmio para análise de amostras sólidas por espectrometria de absorção atômica com chama (SSA-FAAS)
(Universidade Federal de Santa Maria, 2004-02-12)
The purpose of this study was to develop a system for solid sampling
analysis by flame atomic absorption spectrometry (SSA-FAAS), which would allow
the use of higher sample mass when compared to other devices reported ...
Reações de 3-trialoacetil-4,5-diidrofuranos e 5-trialoacetil-3,4-diidro-2H-piranos com aminas e álcoois
(Universidade Federal de Santa Maria, 2003-03-21)
This work presents the synthesis of α-alkylaminomethylene-γ-
lactones 8 (one pot reaction) and α-alkylaminomethylene-δ-lactones 9 (two steps
reaction), from the reaction of 3-trichloroacetyl-4,5-dihydrofuran (3) and ...
Purificação, caracterização e dosagem radioimunológica de glicopoteínas associadas à gestação em zebuínos
(Universidade Federal de Santa Maria, 2002-03-26)
The pregnancy
associated glycoproteins (PAGs) constitute a large family of aspartic
pro teinases expressed in the outer epithelial cell layer of the Artyodactyla placenta. In the first
part of the present work, two ...
Caracterização de perfis fisiológicos e marcadores moleculares em fêmeas Brangus-Ibagé com distintos graus de fertilidade
(Universidade Federal de Santa Maria, 2000-12-28)
The aim of the present study was to characterize physiological differences between animals of high and low fertility and to search for associations between molecular markers and reproductive performance, studding a population ...
Polímero e tratamento fitossanitário em sementes de soja e sua relação com a absorção de ingrediente ativo e desempenho em condições de estresse
(Universidade Federal de Santa Maria, 2022-08-12)
The use of high quality seeds is of fundamental importance for the correct establishment of
plants in the field, in which this will provide a greater guarantee for the producer. Lots with
inferior physiological quality ...
Crescimento de uma floresta estacional decidual, em três estágios sucessionais, no município de Santa Tereza, RS, Brasil
(Universidade Federal de Santa Maria, 2002-08-30)
The changes in the floristic composition, its phytosociological structures and
the dynamic processes of the growth as ingrowth, increment in basal area and
mortality, were studied in three successional phases of Deciduous ...