Capillary Permeability
Mostrando 1-12 de 137 artigos, teses e dissertações.
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1. Hypotension and Bradycardia Produced by Transthoracic Application of Low-Intensity Ultrasound Therapy in Hearts of Healthy Rats - A Preclinical Study
Abstract Objective: To investigate the cardiovascular effects produced by transthoracic application of low-intensity pulsed ultrasound therapy (LIPUST). Methods: Three-month-old male Wistar rats (± 300 g, N=16) were randomly allocated in two groups, namely SHAM (control group, faked procedures) and UST (animals treated with LIPUST). These animals, under a
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-10
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2. Synthesis of Hybrid Monolithic Columns Using a Click Chemistry Reaction for Application in Capillary Liquid Chromatography
Hybrid monolithic columns present characteristics of both silica and organic monoliths, such as good mechanical properties, wide pH tolerance, high permeability and stability and little swelling or shrinkage. A common way to prepare this type of material is by using alkoxysilanes and organic monomers via the sol-gel process and click chemistry reactions. In
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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3. Curcumin exerts anti-inflammatory and vasoprotective effects through amelioration of NFAT-dependent endothelin-1 production in mice with acute Chagas cardiomyopathy
BACKGROUND The anti-inflammatory and cardioprotective properties of curcumin (Cur), a natural polyphenolic flavonoid isolated from the rhizomes of Curcuma longa, are increasingly considered to have beneficial effects on the progression of Chagas heart disease, caused by the protozoan parasite Trypanosoma cruzi. OBJECTIVE To evaluate the effects of oral t
Mem. Inst. Oswaldo Cruz. Publicado em: 16/07/2018
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4. LEACHING OF COARSE CALICHE ORE. EXPERIMENT AND MODELLING
Abstract Heap leaching of caliche ores is frequently performed with run-of-mine (ROM) material, which includes rocks of very different sizes; however, most of the experimental data are obtained using small particles. To contribute to the understanding of caliche leaching, an experiment using coarse particles was carried out. The recoveries obtained from this
Braz. J. Chem. Eng.. Publicado em: 2016-03
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5. Durability Enhancement Of SCC With Waste Glass Powder
Self compacting concrete (SCC) requires a large quantity of fine materials compared to common concrete. In this work waste glass powder was used to replace (50%) of filler required. Two types of SCC were manufactured, a control SCC type (CTL) using cement and limestone filler and another with glass powder replacing 50% of the filler. Mechanical and durabilit
Mat. Res.. Publicado em: 19/02/2016
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6. Anti-inflammatory and antinociceptive activities of non-alkaloids fractions from Aconitum flavum in vivo
Aconitum flavum Hand.-Mazz., Ranunculaceae, has been used for the treatment of rheumatism, traumatic injury in folk and clinical medicine, but the alkaloids has high toxicity. This study was designed to investigate the acute toxicity, anti-inflammatory and antinociceptive activities of non-alkaloids fractions from A. flavum in rodents. The anti-inflammatory
Rev. bras. farmacogn.. Publicado em: 2015-02
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7. Gender differences in microcirculation: Observation using the hamster cheek pouch
OBJECTIVES: Estrogen has been shown to play an important protective role in non-reproductive systems, such as the cardiovascular system. Our aim was to observe gender differences in vivo with regard to the increase in macromolecular permeability and leukocyte-endothelium interaction induced by ischemia/reperfusion as well as in microvascular reactivity to v
Clinics. Publicado em: 2013-12
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8. Phlebotonics for haemorrhoids
BACKGROUND Haemorrhoids are variceal dilatations of the anal and perianal venous plexus and often develop secondary to the persistently elevated venous pressure within the haemorrhoidal plexus. Phlebotonics are a heterogenous class of drugs consisting of plant extracts (i.e. flavonoids) and synthetic compounds (i.e. calcium dobesilate). Although their preci
Sao Paulo Med. J.. Publicado em: 2013
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9. Desenvolvimento de método para medida de permeabilidade superficial de revestimentos de argamassa. / Development of method for measuring the surface permeability of coating mortar.
The phenomenon of permeability refers to the ability with which a fluid is transported through a porous medium, driven by pressure gradient between the material and the external environment. Degradation agents are conducted to the interior of mortar and concrete driven through such a phenomenon. Therefore, it is the permeability as a key parameters for durab
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2011
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10. Avaliação das propriedades de transporte de massa contendo adições minerais / Evaluation of the mass transport containing mineral admixtures
A durabilidade das estruturas de concreto armado é prejudicada pela ação deteriorante da penetração de substâncias na forma de gases, vapores e líquidos através de poros e fissuras. Sabe-se que a água, tanto no seu estado puro ou com íons dissolvidos, como os cloretos, sulfato, dióxido de carbono ou oxigênio, pode comprometer a durabilidade das e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/10/2009
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11. Avaliação das propriedades de transporte de massa contendo adições minerais / Evaluation of the mass transport containing mineral admixtures
The durability of reinforced concrete structures is damaged by the degrading action of the penetration of substances in the form of gases, vapors and liquids through the pores and cracks. It is known that water both in its pure form or containing dissolved ions such as chloride, sulphate, carbon dioxide or oxygen ions, can compromise the durability of concre
Publicado em: 2009
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12. FLOW OF EMULSIONS IN POROUS MEDIA: EXPERIMENTS AND CAPILLARY NETWORK MODEL / ESCOAMENTO DE EMULSÕES EM MEIOS POROSOS: EXPERIMENTOS E MODELO DE REDE DE CAPILARES
Objective: Transport of emulsions in porous media is relevant to several subsurface applications. Many enhanced oil recovery processes involve emulsion formation and their flow in some form. Modeling the flow of emulsion in porous media is extremely challenging. The available descriptions based on effective viscosity are not valid when the drop size is of th
Publicado em: 2009