نتایج جستجو برای: russia as an important trans
تعداد نتایج: 8657836 فیلتر نتایج به سال:
we describe here a suitable approach for the synthesis of n-unsubstituted monocyclic b-lactams under mild reaction conditions by the annelation of imines with substituted acetylchlorides. in this method the reaily available phtalimidoacetyl chloride were allowed to react with - dibenzylideneiminotoluene (hydrobenzamide) in the presence of an equimolar amount of triethylamine in refluxing toluen...
The mechanism of the self-reaction of HCO radicals is investigated by using high-level quantum-chemical methods including M05-2X, CCSD, CCSD(T) and CRCC(2,3). Next, the rate coefficients for several product channels as a function of pressure and temperature are computed by employing statistical rate theories. Four important product channels are predicted to be CO + CO + H2, HCOH + OH, cis-(HCO)...
introduction: cholesterol and fatty acids are two important components of the lipids. various fatty acids have different effects on plasma lipoproteins. consumption of saturated fatty acids tends to increase total plasma and ldl cholesterol levels. while polyunsaturated fatty acids reduce both ldl and hdl cholesterol, edible oil rich in monounsaturated fatty acid (mufa) however, tend to lower ...
BACKGROUND High violent mortality rate in Russia and its profound fluctuation over recent decades have attracted considerable interest. A mounting body of evidence points to the binge drinking pattern as a potentially important contributor to the violent mortality crisis in Russia. In line with this evidence, we assume that higher level of vodka consumption in conjunction with binge drinking pa...
this study investigated how group formation method, namely student-selected vs. teacher-assigned, influences the results of the community model of teaching creative writing; i.e., group dynamics and group outcome (the quality of performance). the study adopted an experimental comparison group and microgenetic research design to observe the change process over a relatively short period of time. ...
According to its historical background, natural conditions and political geography, Caucasus is made up of a variety of races, followers and cultures of different rituals and religions. Historical links of Caucasus residents with Iranian civilization and culture resulted in their adherence to Iranian governments in equilibrium with Roman, Ottoman and Russian policies. Following the collapse of ...
the present study is an attempt to investigate the potential impact of inspirational quotes on improving english abstract vocabulary recall. to achieve this goal, a multiple choice language proficiency test of 60 items including vocabulary and grammar component was administered to a sample of 63 second-semester male and female students whose age ranged between 17 to 22 and they were studying en...
With an ever-increasing number of briefer interactions with a larger number of different “things”, innovative perspectives on authentication could be helpful. Ideally, authentication solutions are designed to balance requirements of security with those of usability, with the latter including cognitive ability for choosing credentials such as passwords, and memorability of those credentials. Som...
labonté et al provide an insightful analysis of the trans-pacific partnership (tpp) and its impact on a selection of important health determinants. their work confirms concerns raised by previous analyses of leaked drafts and offers governments serious and timely reasons to carefully consider provisions of the agreement prior to moving forward with ratification. it also contributes more general...
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