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Ultrasonic activation of internal bleaching agents
(2013-01-01)
Aim: To evaluate the effectiveness of ultrasonic activation of bleaching agents during ex vivo internal bleaching. Methodology: Fifty canine human teeth were artificially stained, root filled and divided into five groups ...
Eels: Electric SnakesEels: Electric Snakes
(Computación y Sistemas, 2009)
Mineral status in cyclists
(2016)
International Regulations of Propolis Quality: Required Assays do not Necessarily Reflect their Polyphenolic-Related In Vitro Activities
(Institute of Food Technologists, 2015)
Propolis has been proposed as a polyphenolic-rich natural product potentially able to be used for human consumption or even for medicinal proposes. To guarantee a minimum phenolic and flavonoid content and as consequence ...
In Vitro Phytotoxicity and Antioxidant Activity of Selected Flavonoids
(Mdpi Ag, 2012-05-01)
The knowledge of flavonoids involved in plant-plant interactions and their mechanisms of action are poor and, moreover, the structural characteristics required for these biological activities are scarcely known. The objective ...
In Vitro Phytotoxicity and Antioxidant Activity of Selected Flavonoids
(Mdpi Ag, 2012-05-01)
The knowledge of flavonoids involved in plant-plant interactions and their mechanisms of action are poor and, moreover, the structural characteristics required for these biological activities are scarcely known. The objective ...
A critical analysis on "Active Learning" in the light of Cultural-Historical Activity Theory (CHAT): Implications to Physics Education and to experimental activities as a particular case.
(The International Commission on Physics Education (ICPE) Commission C14 of the International Union of P ure and Applied Physics (IUPAP)The European Physical Society Physics Education Division (EPS PED)The Faculty of Mathematics and Physics, Charles Un iversity in PraguePraga, 2013-08-05)
This is a research paper in which we discuss “active learning” in the light of Cultural-Historical Activity Theory (CHAT), a powerful framework to analyze human activity, including teaching and learning process and the ...