Controlled Liberation
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Determination of maximum zinc recovery of Vazante mine ore by flotation process
Abstract Nowadays, Nexa Resources (ex-Votorantim Metais) operates two zinc mines in Brazil, represented by the Vazante unit in Vazante - MG and the Morro Agudo unit in Paracatu - MG. The present study was carried out at the Vazante unit, where zinc concentrate is produced from a silicate ore called Willemite (Zn2SiO4) through froth flotation processes. The t
REM, Int. Eng. J.. Publicado em: 2019-06
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2. ESTUDO QUÍMICO DO SOLO E LIXIVIADO DO ATERRO CONTROLADO DO BOTUQUARA
Currently, the production and storage of solid residues have generated a discuss range about linked aspects to the disease propagation and environment damage, mainly due to the formation of leach and its infiltration, could cause earth contamination, flow and ground water. The final disposition place of trash at Ponta Grossa city started out in 1969, in an a
Publicado em: 2008
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3. Polymeric coating and pharmacokinetic of chitosan granules containing ddI incorporated in microparticles / Revestimento polimerico e farmacocinetica de granulos gastrorresistentes contendo didanosina incorporada em microparticulas de quitosana
This work studied the production and pharmacokinetic of a new pharmaceutical formulation of the didanosine (ddI) drug ,composed by chitosan granules containing ddI incorporated in microparticles, for oral administration in the AIDS therapy. The advantages of this new pharmaceutical formulation compared to the conventional one are: to assure ddI stability in
Publicado em: 2008
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4. Distribuição diária do comportamento da mosca da fruta Anastrepha zenildae Zucchi, (Diptera: Tephritidae) em laboratório.
The knowledge of Anastrepha zenildae behavioral aspects combined with the biology of Tephritidae may contribute to monitoring and control programs of this fruit fly that is considered as economically important to the Rio Grande do Norte state. In order to characterize the daily activity profile of this species, we studied the behaviors of resting, locomotion
Publicado em: 2008
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5. Aplicação e caracterização de microsferas de poli (L-acido-lactico) contendo proteina morfogenetica ossea (BMP) no tratamento de perda do tecido dental / Aplication and caracterization of microspheres of poly (L-lactide acid) contends Bone morphogenetic Proteins (BMP) in thetreatment of loss of the tissue dental
Um dos pontos que deve ser considerado de difícil solução no Brasil é a perda dentinária. Vários materiais tem sido estudados para minimizar o problema, mas nenhum atende às necessidades de tal aplicação. Nesse sentido, o objetivo do presente avaliar a biocompatibilidade do Poli (L-ácido láctico), PLLA, contendo BMP-2 no tratamento de grandes perd
Publicado em: 2008
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6. Effects of the application off slow release fertilizer for the establishment off ipÃ-roxo e angico branco in the area of ciliar dominion / Uso de fertilizantes de liberaÃÃo lenta no estabelecimento de mudas de ipà roxo e angico branco em Ãrea de domÃnio ciliar
O uso de fertilizantes de liberaÃÃo controlada constitui-se em umas das modernas tÃcnicas na produÃÃo de mudas. PorÃm, existem poucos relatos de seus efeitos sobre crescimento em espÃcies florestais nativas em Ãrea de domÃnio ciliar. Objetivou-se testar diferentes fertilizantes de liberaÃÃo controlada com um fertilizante convencional no estabeleci
Publicado em: 2008
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7. EFEITO DO TREINAMENTO AERÓBICO E ANAERÓBICO SOBRE AS CONCENTRAÇÕES DO HORMÔNIO DO CRESCIMENTO EM RATOS SUBMETIDOS A EXERCÍCIO FÍSICO
Generally, all the functions of the human body and the vertebrate ones as well, are controlled by the nervous and endocrine system that work on an integrated form, providing stability to the internal and external environment of the body, through the various homeostatic mechanisms. The general aim of this work was to verify the effects of different types of p
Publicado em: 2006
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8. Estudo da Ação da Toxina Botulínica do tipo A na profilaxia da Migrânea Sem Aura / Study of the Action of Botulinum Toxin Type A in the Prophylaxis of Migraine Without Aura
A randomized, double-blind, placebo-controlled study of the use of botulinum toxin type A in the prophylactic treatment of Migraine is presented. Migraine is a common type of primary, benign, episodic headache. It is characterized by pain usually unilateral and throbbing. Other associated symptoms are nausea, sensitivity to light and sound, or irritability.
Publicado em: 2004
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9. Preparo e caracterização de microcapsulas obtidas por polimerização ionica para alimentação de larvas de peixe / Preparation and characterization of microcapsules obtained by polymerization Ionica feeding of fish larvae
This research aimed at producing microcapsules capable of retaining proteins, with the objective of substituting the live organisms used in larval fish feed. Four different polysaccharides: alginate, carrageenan, gelan gum and pectin were used, all having the capacity to form gels by ionic polymerization both individually and in association, in order to prod
Publicado em: 2003
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10. Estudos sobre sistemas de liberaÃÃo controlada da vacina antiaftosa e do cobalto II para uso veterinÃrio
On the first stage of our work, suspended virus O1 Campos (causing subtype of virus of foot-and-mouth disease) prepared by VALLÃE S/A was proposed as ligands to be bound to the Starch through covalents or by using carbodiimide in order to produce crosslinkings. The starch is oxidated by sodium metaperiodate 0,4 N in pH 4,5, that vicinal hidroxlicos groups a
Publicado em: 1996
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11. Energetics of fast- and slow-twitch muscles of the mouse.
1. The energetic cost of work performance by mouse fast- and slow-twitch muscle was assessed by measuring the rates of thermal and mechanical energy liberation of the muscles at 21 degrees C. Thermal energy (heat) liberation was measured using a fast-responding thermopile. 2. Bundles of muscles fibres from the slow-twitch soleus and fast-twitch extensor digi
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12. Ca2+ influx modulation of temporal and spatial patterns of inositol trisphosphate-mediated Ca2+ liberation in Xenopus oocytes.
Inositol 1,4,5-trisphosphate (InsP3) functions as a second messenger by liberating intracellular Ca2+ and by promoting influx of extracellular Ca2+. We examined the effects of Ca2+ influx on the temporal and spatial patterns of intracellular Ca2+ liberation in Xenopus oocytes by fluorescence imaging of cytosolic free Ca2+ together with voltage clamp recordin