نتایج جستجو برای: lif mg and ti
تعداد نتایج: 16859952 فیلتر نتایج به سال:
مقدمه: با توجه به نبود گزارشی مبنی بر ارزیابی رشد فولیکولی، فراساختار و وقوع آپوپتوز در بافت تخمدانی انسانی منجمد/ذوب شده در دو مرحله پس از ذوب و پس از کشت در حضور فاکتورهای gdf-9b و یا هدف از این پژوهش ارزیابی آنها برای اولین بار بود. مواد و روشها: بیوپسیهای بافت تخمدان از زنان نرمال تحت عمل سزارین جمع آوری شد و در دو گروه انجماد شیشه ای و غیر انجمادی تقسیم بندی شدند. پس از انجام مراحل انج...
Lenalidomide is approved for the treatment of transfusion-dependent (TD) del(5q) myelodysplastic syndromes (MDS). However, few data are available in patients with transfusion-independent (TI) del(5q) MDS. In the first, observational, part of this 2-part study, we assessed the impact of transfusion dependence on overall survival (OS) and non-leukemic death in untreated del(5q) MDS patients who w...
Björn Alling , Metal to semiconductor transition and phase stability of Ti1-xMgxNy alloys investigated by first-principles calculations, 2014, Physical Review B. Titanium nitride based materials are applied in several technological applications owing to their stability at high temperatures, mechanical and optical properties, as well as good electrical conductivity. Here, I use theoretical first...
This study aims to investigate the effects on hot cracking susceptibility of fluoride powders such as CaF2, NaF, LiF, and metal Mn, Ti, Nb mixed Ti-Nb deposited 316L stainless steel during TIG (Tungsten Inert Gas) welding process. A self-restraint bench test using specimens trapezoidal shape 3 mm thickness was selected. The obtained results weldability with different were compared those convent...
Background: Leukemia inhibitory factor (LIF) is a pleiotropic cytokine of interleukin-6 family with a remarkable range of biological actions such as proliferative effects on the granulosa and theca cells. The aim of this study was to evaluate the effects of LIF on the growth and maturation of mouse fresh and vitrified preantral follicles, an in vitro model was developed. Methods: The ovaries of...
Background: As condition and component of culture determine fate map of spermatogonial stem cells (SSCs), the aim of this study was to evaluate of growth factors GDNF, LIF and RA on proliferation and differentiation of SSC. Materials and Methods: SSCs were cultured in two groups: The first group GDNF and LIF and the second group RA. The number of clumps and colony formation was monitored dur...
The selection of twin variants has a great influence on deformation texture and mechanical property in hcp metals where slip systems are limited twinning types abundant during deformation. Local strain accommodations among considered to shed light variant rules Ti Mg alloys. Five kinds discussed terms different regions that affected by the shear primary twin. These contain (I) whole sample, (II...
The plasma immersion ion implantation and deposition (PIIID) technique was used to implant zinc (Zn) ions into smooth surfaces of pure titanium (Ti) disks for investigation of tooth implant surface modification. The aim of the present study was to evaluate the surface structure and chemical composition of a modified Ti surface following Zn ion implantation and deposition and to examine the effe...
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