نتایج جستجو برای: trans thioacetalization
تعداد نتایج: 65652 فیلتر نتایج به سال:
tagetes is a genus of 56 species of annual and perennial mostly herbaceous plants in the sunflower family (asteraceae or compositae).in this research our goal was recognizing the main components of the plant to extract useful ones. essential oils of the leaves, seeds and flowers of tagets minuta l., growing wild in iran, were extracted by hydrodistillation and analyzed by gc and gc-ms. identifi...
Background & Aim: Impressive research demonstrates the importance of essential fatty acids for many physiological and behavioral mechanisms in both humans and animals. Experimental research showed that deficit in learning and memory is induced after kindling. The objective of this study was to investigate whether dietary cis and trans fatty acids, pre and during pentylenetetraxol(PTZ) kindl...
Amyloid-β (Aβ) self-assembly into cross-β amyloidfibrils is implicated in a causative role in Alzheimer’s disease pathology.Uncertainties persist regarding the mechanisms of amyloid self assembly and the role of metastable prefibrillar aggregates. Aβ fibrilsfeature a sheet-turn-sheet motif in the constituent β-strands; as such, turn nucleation has been proposed as a rate-limiting step in the se...
Introduction: Long-term work with computer can lead to damage of vision and musculoskeletal disorder on the computer users. The aim of this study was to determine the predictors of ergonomic computer users based on the Trans theoretical model of computer users working in Baqiyatallah hospital (Aj) in Tehran. Material and Methods: This descriptive study - an analysis on 102 computer users wit...
Long chain cis-prenyltransferase in rat liver microsomes was studied using various allylic isoprenoid substrates. Microsomes could utilize trans-geranyl pyrophosphate, but not cis-geranyl pyrophosphate for polyprenyl pyrophosphate synthesis. Both trans, trans-farnesyl pyrophosphate and trans,cis-farnesyl pyrophosphate were used as substrates with Km values of 24 and 5 microM, respectively. tran...
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