منابع مشابه
Tobacco-specific nitrosamines in new tobacco products.
New tobacco products, designed to attract consumers who are concerned about the health effects of tobacco, have been appearing on the market. Objective evaluation of these products requires, as a first step, data on their potentially toxic constituents. Tobacco-specific nitrosamines (TSNAs) are an important class of carcinogens in tobacco products, but virtually no data were available on their ...
متن کاملLevels of tobacco-specific nitrosamines and polycyclic aromatic hydrocarbons in mainstream smoke from different tobacco varieties.
It has been estimated that one in every five cancer deaths worldwide are related to tobacco use. According to the IARC, 10 polycyclic aromatic hydrocarbons (PAH) and 8 tobacco-specific nitrosamines (TSNA), as well as at least 45 other compounds or substances found in tobacco smoke, are potential human carcinogens. The levels of these carcinogens in contents of tobacco and smoke emissions vary b...
متن کاملNew Examples of Defective Secant Varieties of Segre-veronese Varieties
We prove the existence of defective secant varieties of three-factor and four-factor Segre-Veronese varieties embedded in certain multi-degree. These defective secant varieties were previously unknown and are of importance in the classification of defective secant varieties of Segre-Veronese varieties with three or more factors.
متن کاملNew Varieties of Western Willows.
Increasing collections of West American Salices make possible better interpretations of the variations of expression noted in different species. The present paper adds two varieties to Salix melanopsis Nuttall, that one of the western long-leaf or sandbar willows most closely related to the eastern S. interior Rowlee (S. longifolia Muhl.). Continuing study of the abundant Alaskan collections ma...
متن کاملassessing the genetic diversity of tobacco (nicotiana tabacum l.) varieties
the genetic diversity of 40 tobacco (nicotiana tabacum l.) cultivars was analyzed using 12 issr primers. thecultivars were evaluated for 14 traits using a simple lattice design (7×7) with two replications. of 149 amplified bands, 142 (95.3%) were polymorphic. maximum and minimum bands were generated by primers ubc825 (17 bands and 94.11% polymorphic) and ubc824 (7 bands and 100% polymorphic), r...
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ژورنال
عنوان ژورنال: Magarach Vinogradstvo i Vinodelie
سال: 2020
ISSN: 2309-9305
DOI: 10.35547/im.2020.47.47.005