نتایج جستجو برای: af جبر
تعداد نتایج: 22811 فیلتر نتایج به سال:
هندسه ناجابجایی، هندسه فضاهای کوانتمی را مطالعه می کند. به عبارت ساده تر، این کار به معنی مطالعه خواص هندسی جبرهای ناجابجایی است. اساس کار بر توجه به این نکته است که رسته های مختلفی از فضاها را می توان به وسیله جبرهای جابه جایی نگاشت ها بر آنها کاملا توصیف کرد. در این صورت به یک جبر جابجایی می توان به عنوان جبر نگاشت ها بر یک فضای ناجابجایی نگریست. حال سوال این است: خاصیت هندسی یک جبر ناجابجای...
results the mean age of patients was 60 ± 9.9 years. statistically significant relationship between the occurrence of af with mitral valve annulus, la volume index (lavi) , right ventricle function, and type of surgery (off pump or on pump) were detected in our study (p < 0.05) . there was no statistically significant relationship between the occurrence of af and time interval of p wave to a wa...
دراین پایان نامه پایداری معادله تابعی ((f(x) = af(h(x)) + bf(?h(x را با شرایطی که روی aوb و تابع hدر نظر می گیریم بررسی می کنیم.نتایج حاصله در این پایداری رابرای معادلات تابعی با چندین متغیر به کار خواهیم برد.همچنین پایداری معادله تابعی ((f(x) = af(h(x)) + bf(?h(x در حالت یکنواخت فازی بررسی می کنیم.
aim : thereby we aimed to detection of bacterial dna (bactdna) in sbp by polymerase chain reaction (pcr) and its prognostic relevance in cirrhotic patients with culture-negative non-neutrocytic ascites(cnnna). background: approximately 60% of patients with spontaneous bacterial peritonitis (sbp) are ascites culture negative. methods : of each 77 patients with cirrhosis and ascites, two samples...
Background: Studies of the association between post operative AF and Plasma level of NT- Pro BNP have reported conflicting findings. The aim of the present study was evaluation of the association between post coronary bypass graft- Atrial Fibrillation (AF) and Plasma level of NT- ProBNP as an independent risk factor of AF development in patients undergoing coronary artery bypass graft. Methods...
This experiment was conducted to study the effect of Aflatoxins (AF) on broiler performance, organ weight, plasma characteristics, protein digestibility, and metabolizable energy of the diets. Dietary treatments were: 1) control diet based on corn and soybean meal; 2, 3 and 4) control diet plus 1 mg kg-1 AF, 1 mg kg-1 AF and 0.25% mycosorb, and 0.25% Mycosorb, respectively. The results in the A...
The optimal catheter ablation approach for longstanding persistent atrial fibrillation (AF) remains elusive despite significant advances made in our understanding of this arrhythmia. A recent systematic review highlighted the significant variation in procedural success rate both within and between techniques, necessitating repeat ablation procedures and anti-arrhythmic drugs to achieve improved...
Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA, USA; Division of Preventive Medicine, Brigham and Women’s Hospital, Boston, MA, USA; Section of Cardiology, Evans Department of Medicine, Boston University School of Medicine, Framingham, MA, USA; Cardiac Arrhythmia Service, Massachusetts General Hospital, Boston, MA, USA; and Preventive Medicine Section, Whitaker ...
Introduction: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmias that cardiologists and internists encounter. The goal of this article is to clarify an overview of the evidence linking inflammation to AF existence, which may highlight the effect of some pharmacological agents that have genuine potential to reduce the clinical burden of AF by modulating inflammatory pathways. Mat...
Introduction: Atrial fibrillation (AF) is the most common complication of cardiac surgery which may cause remarkable morbidity and complications. Identifying predicting factors of this arrhythmia can help prophylactic therapy. The present study is designed to investigate the hypothesis that HsCRP level and P-wave characteristics are associated with the incidence of post-operative AF. Methods: ...
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