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Waste fiber reinforced composite materials : production and mechanical properties

Efeito do ultra-som terapêutico em tendinite experimental de eqüinos: estudo cl...

Avaliaram-se dois protocolos de ultra-som no tratamento de lesões do tendão flexor digital superficial (TFDS). Foram estudados 18 eqüinos, nos quais foi injetada uma solução de colagenase a 0,25% no TFDS esquerdo, à altura do terço médio da região metacarpiana. Os eqüinos foram divididos em: grupo A - tratado por ultra-som (UST) na freqüência de 3 MHz e intensidade de 1W/cm², no modo contínuo, por seis minutos;...

Chromium(VI) interaction with plant and animal mitochondrial bioenergetics: A c...

The mechanism of Cr(VI)-induced toxicity in plants and animals has been assessed for mitochondrial bioenergetics and membrane damage in turnip root and rat liver mitochondria. By using succinate as the respiratory substrate, ADP/O and respiratory control ratio (RCR) were depressed as a function of Cr(VI) concentration. State 3 and uncoupled respiration were also depressed by Cr(VI). Rat mitochondria revealed a ...

WATER NEEDS FOR WINTER BEAN CROP

A study of water use by bean winter crop (Phaseolus vulgaris, L., cv. Carioca) was carried out in a Red Yellow Latosol, clay texture. A furrow irrigation system maintained soil water potentials higher than -40 KPa. Two broadcast nitrogen treatments (0 and 30 kg N/ha) were applied 25 days after planting. The major objectives were to study the nitrogen and evapotranspiration interaction and measure the crop coeff...