Co2 Injection
Mostrando 13-24 de 227 artigos, teses e dissertações.
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13. Methylene Blue to Treat Protamine-induced Anaphylaxis Reactions. An Experimental Study in Pigs
ABSTRACT Objective: To examine if methylene blue (MB) can counteract or prevent protamine (P) cardiovascular effects. Methods: The protocol included five heparinized pig groups: Group Sham -without any drug; Group MB - MB 3 mg/kg infusion; Group P - protamine; Group P/MB - MB after protamine; Group MB/P - MB before protamine. Nitric oxide levels were obtai
Braz. J. Cardiovasc. Surg.. Publicado em: 2016-06
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14. Combustibility and reactivity of coal blends and charcoal fines aiming use in ironmaking
Charcoal is a very important reducing agent in Brazil, the world’s largest steel industry based on charcoal blast furnace. Charcoal generates large amounts of charcoal fines during its production and processing. A good alternative for harnessing this fuel is the injection into coke-based blast furnaces via PCI process (Pulverized Coal Injection), a key tec
Mat. Res.. Publicado em: 08/04/2016
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15. Does a small size needle puncture cause intervertebral disc changes?
PURPOSE:Small size needles have been regularly used for intradiscal injection of innocuous/potential therapeutic compounds in experimental conditions, but also in clinic procedures, such as discography. Our aim was to investigate if a 30-gauge needle could trigger observable changes on intact intervertebral discs. We compared these effects to those induced b
Acta Cir. Bras.. Publicado em: 2015-08
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16. Effects of ropivacaine combined with morphine at 0.15 and 0.2 mg kg-1 in bitches undergoing epidural anesthesia
PURPOSE: To investigate cardiorespiratory effects and serum concentration of ropivacaine combined with morphine at different doses.METHODS: Sixteen healthy adult female dogs weighting 9.8±4.1 kg were included in the study. Twenty minutes after being premedicated with acepromazine and midazolam, the animals were randomly assigned to receive an epidural injec
Acta Cir. Bras.. Publicado em: 2015-03
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17. Zinc layered hydroxide salts: intercalation and incorporation into low-density polyethylene
In this study, polymer composites using low-density polyethylene (LDPE) and layered hydroxide salts (LHS) were synthesized. The following compositions of LHS were obtained Zn5(OH)8(An-)2/n.yH2O, where A was varied in order to obtain hydrophilic (A = NO3-) or hydrophobic (A = DDS- - dodecyl sulfate or DBS- - dodecyl benzene sulfonate). Synthesis was carried o
Polímeros. Publicado em: 2014-12
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18. Effects of subcutaneous carbon dioxide on calcitonin gene related peptide and substance P secretion in rat skin
PURPOSE: To investigate the subcutaneous injection of carbon dioxide (CO2) on neuropeptides Calcitonin Gene-Related Peptide (CGRP) and Substance P (SP) secretion in rat skin.METHODS: Fifty-six Wistar-EPM rats were distributed in two groups: one for CGRP analysis, the other for SP analysis. Each group was subdivided into four subgroups: control (Cont), contro
Acta Cir. Bras.. Publicado em: 2014-04
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19. The effect of carbon dioxide therapy on composite graft survival
PURPOSE: To investigate the effect of carboxytherapy in auricular composite grafts in rabbits. METHODS: An experimental study was conducted using 20 rabbits randomly assigned to a treatment group of carboxytherapy or a control group of saline solution. In each ear, a circular graft with 1.5 cm or 2 cm of diameter was amputated and reattached. Animals underwe
Acta Cir. Bras.. Publicado em: 2013-08
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20. Effects of the administration of a catalase inhibitor into the fourth cerebral ventricle on cardiovascular responses in spontaneously hypertensive rats exposed to sidestream cigarette smoke
OBJECTIVE: Previous studies have demonstrated a relationship between brain oxidative stress and cardiovascular regulation. We evaluated the effects of central catalase inhibition on cardiovascular responses in spontaneously hypertensive rats exposed to sidestream cigarette smoke. METHODS: Male Wistar Kyoto (WKY) rats and spontaneously hypertensive rats (S
Clinics. Publicado em: 2013-06
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21. DEVELOPMENT OF OIL FIELDS CONSIDERING THE PRESENCE OF CO2: THEORETICAL FRAMEWORK AND CASE STUDY / PRESENÇA DE CO2 EM PROJETOS DE DESENVOLVIMENTO DE CAMPOS DE PETRÓLEO: ARCABOUÇO TEÓRICO E ESTUDO DE CASO
A degradação do meio ambiente está no topo da agenda de países e empresas. O foco principal é a redução das emissões de gases causadores do efeito estufa, sendo CO2 o maior contribuinte. O consumo elevado de combustíveis fósseis está criando um efeito irreversível no planeta. De forma a contrabalancear seus impactos ambientais, surge o segmento d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/09/2012
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22. Coeficiente de partição do C O IND 2 no processo de injeção de água carbonatada / C O IND 2 partition coefficient in the process of carbonated water injection
O processo de recuperação de óleo pelo deslocamento com CO2 é um método líder na recuperação melhorada de óleos leves e médios. No entanto, a rápida irrupção do CO2 no poço produtor e a baixa eficiência de varrido diminuem sua atratividade. Uma alternativa mais eficiente é a injeção de água carbonatada (IAC). Um dos fatores mais importante
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2012
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23. Produção, composição do leite e desempenho reprodutivo de ovelhas Santa Inês alimentadas com rações contendo óleo de canola ou linhaça / Milk yield, milk composition and reproductive performance of Santa Inês ewes fed diets containing canola or linseed oil
The objective in this study was to evaluate the effect of the addition of canola oil (CO) or linseed oil (LO) on milk production and composition and reproductive performance of Santa Inês ewes. In the experiment I, 33 Santa Inês ewes were fed diets containing 50% of roughage (Cynodon dactylon hay). Experimental diets included a control (no oil) and two rem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/04/2012
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24. Especiação redox de crômio em amostras de solos contaminados / Redox especiation of chromium in contaminated soil samples
Chromium and its compounds are employed in various industrial processes, and these activities are responsible for the disposal of significant amounts of materials containing this element in the environment. Due to the known toxic feature of Cr(VI) in biological systems, the determination of chromium species has acquired great importance in environmental chem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/03/2012