نتایج جستجو برای: bronsted type acid
تعداد نتایج: 1984667 فیلتر نتایج به سال:
Branched fatty acids are of great interest in the oleochemical industry for many high-end applications due to their interesting physicochemical properties. In last decades, research has focused mainly on use ferrierite (FER) as catalyst isomerization into these branched acids. With FER, high yields can be obtained. FER is however expensive, and additives necessary obtain a selectivity toward th...
docosahexaenoic acid (dha), as an omega-3 fatty acid, in a natural ligand of peroxisome proliferator-activated receptors (ppars). regarding the combinative effects of nutrigenomics and nutrigenetics and due to the lack of in vivo studies conducted using natural ligands of ppars, we aimed to evaluate the effects of dha supplementation on vascular function, telomerase activity, and pparγ-lxrα-abc...
results apoptosis induced by pa in ins-1 cells was significantly resolved after liraglutide treatment. simultaneously, autophagy was enhanced with the treatment of pa and liraglutide. conclusions: liraglutide appears to protect ins-1 cells from apoptosis ffa-induced by promoting autophagy. conclusions these findings provide a novel role for glp-1 analogue in preventing or treating with t2d. obj...
In order to develop new, efficient and environmentally friendly methods for the preparation of practically valuable esters carboxylic acids, studies hydroalkoxycarbonylation reaction a number terminal olefins normal structure (hexene-1, heptene-1, octene-1, nonene-1) with carbon monoxide alcohols in presence metal complex catalysts based on palladium phosphine complexes at low pressures (≤ 20 a...
Sommary-_The polarographic reduction of hydrogen ion, furnished by dissociation of a Brransted acid or present in the undissociated Brsnsted acid, is reviewed for the situation where a solvent other than water is involved. INTRODUCTION THE electrochemical reduction of hydrogen ion in aqueous solution has long been a major problem in electrochemistry, as indicated by the voluminous literature on...
The structural evolution of small copper clusters of up to 15 atoms and the dissociative chemisorption of H2 on the minimum energy clusters are studied systematically using density functional theory. The preferred copper sites for chemisorption are identified and the transition state structures and activation barriers for clusters four to nine atoms are determined and found to be inconsistent w...
A misconception is a problem that often encountered in the world of education caused by several things, including students' initial prejudices, incompetent teachers, unclear textbooks, different contexts student experience, and teaching methods only contain lectures. This study intended to answer regarding effectiveness cognitive conflict-based chemistry learning reducing misconceptions about a...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید