2‐(o‐Tolyl)pyridine as ligand improves the efficiency in ketone directed ortho‐arylation

Melatonin improves spermatogonial stem cells transplantation efficiency in azoospermic mice

Objective(s):Transplantation quality improvement and reduction of cellular damage are important goals that are now considered by researchers. Melatonin is secreted from the pineal gland and some organs such as testes. According to beneficial effects of melatonin (such as its antioxidant and antiapoptotic properties), researchers have proposed that the use of melatonin may improve transplantatio...

Site-directed ligand discovery.

We report a strategy (called "tethering") to discover low molecular weight ligands ( approximately 250 Da) that bind weakly to targeted sites on proteins through an intermediary disulfide tether. A native or engineered cysteine in a protein is allowed to react reversibly with a small library of disulfide-containing molecules ( approximately 1,200 compounds) at concentrations typically used in d...

the significance of conjunction as a cohesive device in teaching writing

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...

Ligand efficiency indices as guideposts for drug discovery.

modernist poetics as reflected in the poetry of selected modernist poets

فن شعر (poetics) که پیش از این به معنای مطالعه ی شعر و شیوه های آن بود در قرن بیستم در مفهوم گسترده به نظریه ی ادبی و مشخصه هایی که سبب پیدایش ادبیات است، اطلاق می شود. نوگرایی (modernism) بیش از آنکه از نقطه نظر زمانی دارای اهمیت باشد، گویای زمینه های فکری و اجتماعی است که تحولاتی بنیادین را در هنر و ادبیات رقم زد. تی. اس. الیوت، تی. ئی. هولم و ازرا پاوند از مهمترین نظریه پردازان نوگرایی هستند...