نتایج جستجو برای: 1346
تعداد نتایج: 730 فیلتر نتایج به سال:
In a multicenter study more than 300 central European systemic lupus erythematosus (SLE) patients were examined for HLA-B, HLA-DR, and complement C4 phenotypes. For 174 SLE patients MHC haplotypes were determined by family segregation analysis, and for 155 patients C4 gene deletions were determined by TaqI restriction fragment length polymorphism. Two haplotypes, B8-C4AQO-C4B1-DR3 and B7-C4A3-C...
BACKGROUND Free perforation is the most severe and debilitating complication associated with Crohn's disease (CD), and it usually requires emergency surgery. The aim of this study was to evaluate the incidence of free perforation among Korean patients with CD. METHODS The CrOhn's disease cliNical NEtwork and CohorT (CONNECT) study was conducted nationwide in Korea, and patients who were diagn...
Abstract: Isotope labelling is a powerful tool to study elemental cycling within terrestrial ecosystems. Here we describe a new multi-isotope technique to label organic matter (OM). We exposed poplars (Populus deltoides x nigra) for 14 days to an atmosphere enriched in 13CO� and depleted in 2H�1�O. After one week, the water-soluble leaf OM (�13C = 1346 ± 162‰) and the leaf water were strongly l...
Abstract This study sought to compare the efficiency of different nitrogen (N) fertilizer forms applied perennial ryegrass swards that were rotationally grazed by dairy cows or sheep under Irish conditions for two three years. A 3 × 2 factorial random complete block design plot arrangement was used calcium ammonium nitrate (CAN), urea and + N-(n-butyl) thiophosphoric triamide (urea NBPT) at 150...
حامل‌های انرژی از جمله انرژی الکتریکی، نقش اساسی در توسعة جوامع بشری ایفا می‌کند و به مرور زمان اهمیت آنها در حیات اقتصادی و اجتماعی بشر گسترش پیدا می‌کند. از این رو شناخت تقاضای انرژی الکتریکی و عوامل مؤثر بر آن، در کنار دیگر سیاست‌های حاکم بر تقاضای انرژی می‌تواند نقش مؤثری در فرایند تصمیم‌گیری‌های اقتصادی داشته باشد. دراین مطالعه، با بهرهگیری از روش ARDL به براورد تابع تقاضای انرژی الکتریکی...
The most critical problems of electronic components are the high power consumption and lesser life. This paper aims to numerically model working process water-cooled heat sink obtain effective design. In this context, four types configurations with different passes (Type-A, Type-B, Type-C, Type-D) were designed at water velocities, which 0.25 m/s, 0.5 1 m/s constant air velocity (6 m/s) simulat...
Propriété privée, le moulin de Canet conserve spectaculaires vestiges médiévaux et des adjonctions postérieures témoignant son intense utilisation durant sept siècles. Ces dernières années, recherches bénévoles (histoire, archéologie du bâti, dendrochronologie…) ont abouti à une approche globale ce véritable château-usine sur l’eau édifié la rive droite l’Aude (commune (Aude)). La documentation...
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