Propylene Glycol
Mostrando 13-24 de 76 artigos, teses e dissertações.
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13. Effect of acute administration of sildenafil to rats with detrusor overactivity induced by chronic deficiency of nitric oxide
Purpose Recently, the effect of phosphodiesterase inhibitors (PDE5i) in the lower urinary tract symptoms (LUTS) associated to benign prostatic hyperplasia have been studied thoroughly. However, it remains unclear how the PDE5i improve LUTS. Therefore, the aim of the present study was to evaluate the potential of acute administration of the PDE5i sildenafil
Int. braz j urol.. Publicado em: 2013-04
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14. Controle preditivo baseado em modelo neuro-fuzzy de sistemas não-lineares aplicado em sistema de refrigeração = : Model predictive control based on neuro-fuzzy nonlinear systems applied to a refrigeration plant / Model predictive control based on neuro-fuzzy nonlinear systems applied to a refrigeration plant
Refrigeration systems can be found in many different branches of industry and are characterized as great energy consumers with considerable non-linear behavior. Several studies have been developed to promote the reduction of energy costs and to minimize the effects of nonlinearities in these systems. The use of automation and process control, particularly th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2012
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15. Assessment of ion diffusion from a calcium hydroxide-propolis paste through dentin
This study evaluated the ability of ions from a non-alcoholic calcium hydroxide-propolis paste to diffuse through dentinal tubules. Thirty-six single-rooted bovine teeth were used. The tooth crowns were removed, and the root canals were instrumented and divided into 3 groups: Group 1 - calcium hydroxide-propylene glycol paste; Group 2 - calcium hydroxide-sal
Brazilian Oral Research. Publicado em: 2012-08
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16. Thermodynamic study of the solubility of triclocarban in ethanol + propylene glycol mixtures
By using the van't Hoff and Gibbs equations the apparent thermodynamic functions Gibbs energy, enthalpy, and entropy of solution for triclocarban in ethanol + propylene glycol mixtures were evaluated from solubility data determined at temperatures from (293.15 to 313.15) K. The drug solubility was greatest in the mixture with 0.60 in mass fraction of ethanol
Química Nova. Publicado em: 2012
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17. Desenvolvimento de protocolo para criopreservação de folículos ovarianos de peixes usando vitrificação / Development of cryopreservation protocol for fish ovarian follicles using vitrification
Cryopreservation of fish embryos has been under investigation for over two decades; however every protocol tested so far has failed. The use of oocytes has more recently been reported as an alternative, nevertheless most of the studies were carried out using a single technique - controlled slow cooling - and success also remains elusive. Vitrification is an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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18. Efeitos do estrogênio, raloxifeno e extrato de soja rico em genisteína sobre o osso de ratas adultas ovariectomizadas previamente androgenizadas / Effects of estrogen, raloxifene and genistein-rich soy extract on bone of ovariectomized adult female rats and previously androgenized
INTRODUCTION: Hypoestrogenism can determine bone mineral loss, resulting in decreased bone quality. To prevent that process, several drugs are administered, which can lead, however, to important side effects. Therefore, it is questionable whether the use of estrogen associated with those substances could minimize the adverse effects and maintain bone mineral
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/11/2011
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19. Interference of propylene glycol with the hole-board test
Experimental drugs and/or plant extracts are often dissolved in solvents, including propylene glycol. Nevertheless, there is evidence for psychoactive properties of this alcohol. In this study we found that in the hole-board test 10% propylene glycol did not modify the headdipping behavior. However, 30% propylene glycol induced an increase in the number of h
Publicado em: 2010
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20. Minimum alveolar concentrations and hemodynamic effects of two different preparations of sevoflurane in pigs
BACKGROUND: Original sevoflurane (Sevo A) is made with water, while a generic sevoflurane (Sevocris) is produced with propylene glycol as a stabilizing additive. We investigated whether the original and generic sevoflurane preparations differed in terms of their minimum alveolar concentration (MAC) values and hemodynamic effects. METHODS: Sixteen pigs weighi
Clinics. Publicado em: 2010
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21. Dose-related effects of propericiazine in rats
We evaluated the effects of the neuroleptic agent propericiazine on animal models of anxiety and memory. Adult male Wistar rats (250 to 350 g) received intraperitoneal injections of propericiazine (0.05, 0.075 and 0.1 mg/kg), diazepam (1 mg/kg), saline, or diazepam vehicle (20% propylene glycol and 80% saline) 30 min prior to the experimental procedure. Anim
Publicado em: 2010
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22. Estudo físico-químico de copoliéteres por viscosimetria / Physical-chemical study of copolyethers by viscosimetry
A viscosimetria é um procedimento experimental simples e pouco oneroso, que pode fornecer informações valiosas sobre o volume hidrodinâmico e a conformação de macromoléculas em solução, num determinado solvente, em uma dada temperatura. Os parâmetros viscosimétricos podem ser matematicamente calculados por extrapolação gráfica, cuja execução
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/07/2009
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23. Evaluation of the diffusion capacity of calcium hydroxide pastes through the dentinal tubules
This study aimed to evaluate the diffusion capacity of calcium hydroxide pastes with different vehicles through dentinal tubules. The study was conducted on 60 extracted single-rooted human teeth whose crowns had been removed. The root canals were instrumented and divided into 4 groups according to the vehicle of the calcium hydroxide paste: Group I - distil
Brazilian Oral Research. Publicado em: 2009-06
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24. Avaliação do desempenho energetico e operação de uma camara de estocagem com fluido secundario termoacumulado / Energy performance evaluation and operation of a cold storage chamber with thermo-accumulated secondary fluid
El uso racional de la energía es, en la actualidad, una preocupación mundial. Las cuestiones ambientales relativas a la degradación de la capa de ozono y el calentamiento global van conjuntamente al buen uso energético. La refrigeración se destaca como grande consumidora de energía eléctrica, debido principalmente al uso de los compresores. Hacer un e
Publicado em: 2009