نتایج جستجو برای: toxicological assessment
تعداد نتایج: 568515 فیلتر نتایج به سال:
Synthetic musk fragrances are widely used as replacements for natural musks not only in perfumes but also in soaps, toiletries and disinfectants. The worldwide annual production of musk fragrances ranges between 6000 and 8000 metric tons per year, of which nitroand polycyclic musks represent 30 and 70%, respectively. As a result of their inherently low biodegradability, nitroand polycyclic musk...
Suggesting a need for more research, Mr. Elliott argues that it is too soon for risk-assessment policy to account for recent challenges to a toxicological linear dose-response assumption.
Statistical techniques as applied to toxicological data are discussed. Issues concerning statistical hypothesis testing and combining studies are considered as well as design of experiments. The problems surrounding risk assessment are also mentioned.
SEURAT-1 is a European public-private research consortium that is working towards animal-free testing of chemical compounds and the highest level of consumer protection. A research strategy was formulated based on the guiding principle to adopt a toxicological mode-of-action framework to describe how any substance may adversely affect human health.The proof of the initiative will be in demonstr...
this study was conducted to investigate the impact of portfolio assessment as a process-oriented assessment mechanism on iranian efl students’ english writing and its subskills of focus, elaboration, organization, conventions, and vocabulary. out of ninety juniors majoring in english literature and translation at the university of isfahan, sixty one of them who were at the same level of writing...
The security risk of magnesium alloys used as biodegradable implant material was evaluated in this study. Dose-response assessment was conducted by using toxicological data from authoritative public health agencies (World Health Organization) and assuming 1~3 years of uniform corrosion. Through modification calculation, the tolerable corrosion rate of biodegradable magnesium alloys in vivo was ...
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