The essentiality of certain amino acids and certain fatty acids was established for growing rats at about the same time. W.C. Rose at the University of Illinois in the early 1930’s identified 10 essential dietary amino acids for rats. Soon thereafter, these same essential dietary amino acids were confirmed experimentally in growing nonruminant livestock. The fatty acids, linoleic acid (C18:2) a...

یکی از جذاب ترین روش های ماشینکاری مدرن، تخلیه الکتریکی است که در اواخر دهه 1960 معرفی شد. با سیم کاربردهای مختلفی دارد، جمله دقت بالا تمام مواد رسانا مانند فلزات، آلیاژهای فلزی، گرافیت و سرامیک همچنین صنایع هوافضا، خودروسازی سایر صنایع. به منظور افزایش سرعت کاهش زبری سطح عرض شکاف، پارامترهای برش بهینه نقش مهمی انتخاب خروجی دارند. این مطالعه، ورودی (دبی، مدت پالس، فرکانس سیم، کشش جریان دی الکتر...

isolated five known iridoids glycosides (scrophuloside a, harpagoside b, 5-hydroxyloganin, 8-o-acetylharpagide and 6-o-methyl,1-glucopyranosyl catalpol ),one phenyl ethanoid glycoside (verbascoside) and a phenyl ethanol amine (2-(4-chlorobenzyl amino) ethanol ) compound from the methanolic extract of aerial parts of scrophularia oxysepala using by high performance liquid chromatography based on...

Bu çalışmada, arıcılık sektöründe önemli bir yeri olan Bingöl ilinin Genç, Adaklı, Solhan, Merkez (metan) ve (meğmir) ilçelerinde tespit edilen farklı arılıklardan toplanan ham liyofilize apilarnil örneklerinin biyoaktif özellikleri belirlemek amacıyla yapılmıştır. Denemede GC-MS, HPLC teknikleri kullanılarak yağ asitleri türevleri incelenmiştir. Çalışma sonucunda doymuş sonuçları; C14:0 (Miris...

Abstract Essential oils can modulate ruminal biohydrogenation. Dorper x Santa Inês lambs (n=40; initial BW of 30.3 ± 5.76 kg and 92 9 d old) were assigned to a randomized complete block evaluate the effect different levels arnica montana essential oil (AM) as feed additive on fatty acid (FA) profile meat. The treatments were: 25 mg monensin/kg DM (M25); four monensin-free diets containing 0 (AM...

We determined the acyl and alkyl chain composition of GPI-anchors isolated from MDCK and Fischer rat thyroid (FRT) cells. Both cell lines synthesize GPI-anchors containing C16/C18 or C18/C18 saturated acyl and alkyl chains. The GPI-anchored placental alkaline phosphatase (PLAP) expressed in both cells is raft-associated and PLAP purified from FRT cells is raft-associated in vitro when reconstit...

Milk samples were collected in early lactation (8–14 days milk; DIM) and late (199–326 from 11 cows to assess the differences bovine milk fatty acid (FA) triacylglycerol (TAG) composition, FA positional distribution TAG structure, solid fat content (SFC). Cows that negative energy balance, mobilised C16:0, C18:0, C18:1cis9 their body stores, increasing concentrations of these fat. These high C1...