Water Leakage
Mostrando 13-24 de 117 artigos, teses e dissertações.
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13. Efeito da carga dos lipídios na interação do BP100 em modelos de membrana / Charge effect of lipids in interaction of BP100 and model membranes
Antimicrobial peptides (AMPs) have been a promising alternative therapy to antibiotics. These molecules, consisting of less than 80 amino acids, with different structures and amino acids composition, have amphipathic character which gives them the ability to act on lipid bilayers. They act, by different mechanisms, over bacteria to mammal cells. The AMPs are
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2012
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14. Physiological and biochemical traits as tools to screen sensitive and resistant varieties of tomatoes exposed to salt stress
The present study was conducted to evaluate salt tolerance in seven different pure-line cultivars of tomato (Solanum lycopersicum L.) viz. K-21, Pusa Ruby, Pusa Gorav, Hera research, Selection N5, PKM-1 and S-22 based on several physiological and biochemical traits. Seedlings were transplanted to the pots, being exposed to different salinity levels in the fo
Braz. J. Plant Physiol.. Publicado em: 2012-12
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15. Photosynthesis and antioxidant activity in Jatropha curcas L. under salt stress
Biodiesel is an alternative to petroleum diesel fuel. It is a renewable, biodegradable, and nontoxic biofuel. Interest in the production of biodiesel from Jatropha curcas L. seeds has increased in recent years, but the ability of J. curcas to grow in salt-prone areas, such as the Caatinga semiarid region, has received considerably meager attention. The aim o
Braz. J. Plant Physiol.. Publicado em: 2012
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16. Análise quantitativa do corante azul de Evan extravasado do interior das câmaras internas dos implantes por suas interfaces protéticas nas condições: Hexágono Externo (HE) - Hexágono Interno (HI) - Cone Morse (CM) / Quantitative analysis of Evans blue dye leakage from internal implant chambers through their prosthetic interfaces under the following conditions: External Hexagon (HE) Internal Hexagon (IH) Morse Cone (MC)
Research and studies seek to evaluate the capacity of adaptation and sealing between the implant-intermediate connections of different dental implant systems. It has recently been observed that in implants with screw-retained abutments, various phenomena, such as screw4 loosening and fracture, rotation and fracture of the abutment with bacterial penetration
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/09/2011
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17. Effect of artificial aging on polymeric surge arresters and polymer insulators for electricity distribution networks
A study was conducted to evaluate new and laboratory-aged samples of surge arresters and anchorage polymeric insulators, for 12 and 24 kV networks, which are used by the Rio Grande Energia (RGE). Power Utility Polymeric compounds were analyzed by Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TG), Dynamic-Mechanic Analysis (DMA), Fourie
Polímeros. Publicado em: 13/12/2011
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18. Characterization of aqueous silver nitrate solutions for leakage tests
OBJECTIVE: To determine the pH over a period of 168 h and the ionic silver content in various concentrations and post-preparation times of aqueous silver nitrate solutions. Also, the possible effects of these factors on microleakage test in adhesive/resin restorations in primary and permanent teeth were evaluated. MATERIAL AND METHODS: A digital pHmeter was
Journal of Applied Oral Science. Publicado em: 2011-06
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19. Preservation of rhizobia by Iyophilization with trehalose.
The objective of this study was to determine if trehalose can effectively enhance the viability and storage lifetime of Rhizobium tropici and Rhizobium etli after lyophilization as compared to the traditional protective combination of sucrose and peptone. Two strains of bean-nodulating rhizobia were effectively preserved in the lyophilized state by 100 mM tr
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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20. The effect of irrigation solutions on the apical sealing ability in different root canal sealers
The aim of this study was to assess the effect of three root canal irrigation solutions on the apical sealing ability of three root canal obturation materials: gutta-percha/AH plus or MM-seal and Resilon/Epiphany SE. A total of 100 teeth with single straight root canals were randomly divided into three equal groups of 30 samples each, with the other 10 teeth
Brazilian Oral Research. Publicado em: 2010-06
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21. Influence of storage times on bond strength of resin cements to root canal
The resin cements are responsible to retention of the indirect materials decreasing marginal leakage, increasing failure resistance compared with conventional cementation. The cementation within root canal is very hard due unfavorable conditions regarding the application of adhesive techniques caused by inadequate access. Therefore, considering the possibili
Materials Research. Publicado em: 2010-03
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22. Importance of three techniques of cavity preparation and three adhesive systems on microleakage of composite resin restorations / Importância de três técnicas de preparo cavitário e de três sistemas adesivos na microinfiltração marginal em restaurações Classe V de resina composta
This in vitro study compared the microleakage of class V resin composite restorations placed in cavities prepared with high-speed dental bur (AR), ultrasonic preparation devices (US) and high-speed dental bur plus ultrasonic preparation devices(AR+US), and restored using three different adhesive systems (One all etch Single Bond (SB) , and two Self-etch Clea
Publicado em: 2010
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23. AlteraÃÃes fisiolÃgicas induzidas por estresses abiÃticos em plantas jovens de pinhÃo-manso / PHYSIOLOGICAL CHANGES INDUCED BY ABIOTIC STRESSES IN PHYSIC NUT YOUNG PLANTS
In this work were studied diverse physiological mechanisms, as the osmotic adjustment, photosynthesis, including gas exchange and chlorophyll fluorescence parameters, as well the oxidative responses in physic nuts submitted to different abiotic stresses as: salinity, drought and high temperature. The first experiment aimed to study the effects of increase of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/10/2009
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24. Influence of human and bovine substrate on the microleakage of two adhesive systems
The aim of this study was to evaluate in vitro the marginal sealing of two adhesive systems and to analyze the influence of human and bovine substrates on marginal microleakage in enamel. Rectangular-shaped class V cavities (4 mm wide x 2 mm high x 2 mm deep) were made as follows: 8 cavities were prepared on the buccal and lingual surfaces of the human teeth
Journal of Applied Oral Science. Publicado em: 2009-04