نتایج جستجو برای: کربن 13
تعداد نتایج: 342567 فیلتر نتایج به سال:
In the treatment of complex paraclinoidal and giant cavernous aneurysms, preservation of the patency of the internal carotid artery (ICA) is not always possible, and therapeutic occlusion of the carotid is still an important option for their management. A complete preoperative evaluation of the carotid reserve circulation, including the use of temporary balloon occlusion test and single photon ...
Advances in our understanding of angiogenesis and blood vessel growth have given rise to efforts to develop novel therapeutic approaches for patients with ischaemia who are not adequately treated with presently available therapies. Among the growth factors that play a role in blood vessel growth and development, vascular endothelial growth factors and fibroblast growth factors have been the mos...
ELLIS-van CREVELD SYNDROME IN A NIGERIAN WOMAN: A CASE STUDY 1 2 1 1 AHMADU MS, TALLEMA, AHIDJO A, TAHIR AA Ellis-van Creveld (EVC) syndrome or chondroectodermal dysplasia is a rare, autosomal recessive th disorder that was first described by Ellis and van Creveld in the mid-20 century.The syndrome is characterized by a tetrad of chondrodystrophy, post axial polydactyly, and hidrotic ectodermal...
With this opening sentence, Albert Spaulding introduced a now commonly used statistical procedure to archaeology called chi-square analysis. Spaulding was dissatisfied by typological procedures in common use at the time, and sought to make typology rigorous, replicable, and scientific. Most archaeologists at the time created archaeological types by putting artifacts together on a table, and the...
Address correspondence to: Susan Corey, PhD, Institute of Neurobiology 201 Blvd del Valle, San Juan, PR 00901. Tel: 787-721-4149, ext 222 • Fax: 787-721-4584 • E-mail: [email protected] Background: The CYP2D6 liver enzyme, which metabolizes 25-30% of common medications, is highly polymorphic. Existing studies of Hispanics have focused on Mexicans and Mexican-Americans. The goal of the study w...
This paper describes LIMSI’s submissions to the shared WMT’13 translation task. We report results for French-English, German-English and Spanish-English in both directions. Our submissions use n-code, an open source system based on bilingual n-grams, and continuous space models in a post-processing step. The main novelties of this year’s participation are the following: our first participation ...
معرف های آلی فلزی نقش کلیدی در تشکیل پیوندهای کربن-کربن و کربن-هترواتم، که اسکلت اصلی سنتز ترکیبات آلی هستند را بازی می کنند. در بین آن ها، تشکیل پیوند کربن-کربن و کربن-هترواتم کاتالیز شده به وسیله ی مس، به شدت موردمطالعه قرارگرفته و به طور گسترده در سنتز ترکیبات آلی استفاده می شود. اخیرا، نانو ذرات فلزی در زمینه شیمی و فیزیک اهمیت پیداکرده اند. خواص فیزیکی و شیمیایی فلزات در مقیاس نانو نسبت به...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید