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Modelagem do incremento de árvores individuais de Cedrela odorata L. na floresta Amazônica
(Universidade Federal de Santa Maria, 2009-08-05)
The periodic growth in basal area of 62 trees of cedro (Cedrela odorata L.) was reconstructed from 2005 to 2008, by dendrochronological techniques in Porto Acre, AC, to quantify and describe the growth rate by relationship ...
Biomarcadores de estresse oxidativo em carpas (Cyprinus carpio) expostas aos inseticidas carbofuran e fipronil em condições de lavoura de arroz
(Universidade Federal de Santa Maria, 2009-07-24)
The contamination of the aquatic environment by pesticides is a problem of global importance because of their toxic effect on non-target organisms. These products may affect toxicological parameters and oxidative stress ...
Carbonatação e absorção capilar em concretos de cimento Portland branco com altos teores de adição de escória de alto forno e ativador químico
(Universidade Federal de Santa Maria, 2008-08-12)
The carbonation phenomenon, reaction between CO2 from the atmosphere in the presence of humidity with the Portland cement hydration products, induces pH reduction to levels that can cause the elimination of steel s protective ...
Análise do processo de lavagem e desinfeção de roupas hospitalares: o caso da lavanderia do HUSM
(Universidade Federal de Santa Maria, 2008-04-15)
Water is the most important element of the nature, fundamental to all existent life. The possibility of its breakdown has influence upon the urgent necessity of its preservation. Human beings, in their individual existential ...
Efeitos fisiológicos do mercúrio em plantas de Pfaffia glomerata (Spreng.) Pedersen
(Universidade Federal de Santa Maria, 2009-02-26)
Mercury (Hg) is a highly toxic non-essential heavy metal. Soil, water and air contamination by Hg leads to its accumulation in fish, birds and mammals, thus entering human food. Due to the hazardous effects to the ecosystem, ...
Características acústicas e do esfíncter velofaríngeo durante o som basal em fissurados
(Universidade Federal de Santa Maria, 2009-05-15)
This study aimed at describing the vocal acoustic characteristics and analyzing the velopharyngeal closing during vocal fry, comparing it with the emission in modal register of male adult patients with post-foramen cleft, ...
Desenvolvimento de uma família de reatores eletrônicos para lâmpadas de multivapor metálico empregando a técnica de conexão diferencial de conversores CC/CC
(Universidade Federal de Santa Maria, 2009-02-25)
This work presents and analyzes a new family of electronic ballasts to supply metal halide lamps applied to interior lighting systems. These lamps present the best light quality among the high intensity discharge lamps, ...
Eficiência de absorção e utilização de fósforo em batata cultivada in vitro
(Universidade Federal de Santa Maria, 2009-02-26)
Phosphorus (P) restriction to plants is one of major limiting factors for crop productivity. Alternatively to application of P-containing fertilizer, this obstacle to the vegetal production can be surmounted by developing ...
Implementação de técnicas de controle de motor de passo em aplicações CNC
(Universidade Federal de Santa Maria, 2009-02-20)
The objective of this work is to develop a methodology to control of equipments powered by stepping motors, via the computer parallel port, with up to three programmable axes, for use in automated processes. To implement ...
Aspectos nutricionais de um sistema agroflorestal com eucalipto no sul do Rio Grande do Sul, Brasil
(Universidade Federal de Santa Maria, 2008-05-16)
This study was conducted at an experimental area at Aroeira Farm, belonging to Votorantim Celulose e Papel company, under the geographic coordinates 31° 45 50.7 S e 53° 50 34.9 W, located in Candiota county. In the ...