نتایج جستجو برای: af جبر
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RESULTS Overall, AF was documented in 80 patients (32%) following LVAD placement. Before LVAD placement, 182 patients had no history of AF, whereas 67 patients had documented AF. Among these 67 patients, 56 (84%) continued to have AF following LVAD placement; 24 patients without a history of AF (13%) developed AF after LVAD placement. Patients manifesting AF after LVAD placement were more likel...
در این مقاله، ضمن ارائه اثباتهایی از نامساوی میانگین های حسابی - هندسی، چندین کاربرد آن را بیان می کنیم. به علاوه میانگین های مهم دیگری را معرفی نموده، به توصیف تعمیم های مهم این نامساوی در جبر ماتریس ها و جبر عملگرها می پردازیم.
فرض کنیم A یک گراف سطری- متناهی و K یک میدان است. در این مقاله، به مطالعه تجزیهپذیری جبر کامیان-پسک KP(A) و C*-جبر C*(A) متناظر با A میپردازیم. به ویژه، به کمک ویژگیهای A و گروهوار G_A ، شرایط لازم و کافی برای این تجزیهپذیری ارایه میشود. علاوه بر این نشان میدهیم در شرایط خاص میتوان جبر کامیان-پسک را بهصورت حاصلجمع مستقیم متناهی از جبرهای کامیان-پسک تجزیهناپذیر نوشت.
بزرگترین دشواری اختیار، تردید و اضطرابِ ماست، اما آفتِ بزرگِ جبر، بیمسؤولیتی است. مولانا با جمعِ اختیار و جبر، نظریهای را بنیان مینهد که خود آن را جبّاری مینامد. معنیِ جبّاری نزد مولانا، پذیرش جبر است از منظرِ روانشناختی و قبول اختیار از نظرگاه جامعه شناختی؛ نزد خود بپذیر که هر آنچه رخ داده باید میبوده و بدینسان نه از خود متنفّر باش، نه از دیگری. لیکن هم مسؤولیتِ رفتارِخود را آگاهانه بپذیر و هم ...
atrial fibrillation (af) is the most common arrhythmia after cardiothoracic surgery. af following coronary artery bypass graft (cabg) is associated with an increase in morbidity, mortality, hemodynamic instability, thromboembolic events, severity of heart failure and icu and hospital stay. corticosteroids have a variety of beneficial effects on recovery after elective surgery. this study was de...
background: atrial fibrillation (af) is the most common cardiac arrhythmia and an independent risk factor for stroke among the elderly. a role for inflammation in the atrial remodeling as well as development and recurrence of af is known. objective: to compare il-17a between patients with different types of af and healthy individuals. methods: il-17a was measured in sera of 112 patients and 107...
Let (A,LA) be a quantum metric space. Then clearly S(A) with the metric ρLA is a compact balanced convex metric space, i.e. the metric ρLA is convex and balanced. Another important property of S(A) is that the R−valued affine continuous functions Af(S(A)) separate the points of S(A). Conversly, let (X, ρ) be a compact balanced convex metric space on which Af(X) separate the points of X. Then Af...
Background Drug therapy to maintain sinus rhythm in patients with atrial fibrillation (AF) is limited by adverse effects and inadequate efficacy. There has been an increased interest in the use of class III drugs to treat AF, and several new agents have been developed, but there is little information available about mechanisms of class III drug action in AF. The present study was designed to co...
Atrial fibrillation (AF) was first described in humans approximately 100 years ago,1 and familial forms of AF were reported more than 70 years ago.2,3 Within the last 10 years, 3 critical developments have advanced our understanding of the genetic basis of AF. First, multiple epidemiological studies have demonstrated that AF is heritable. Second, rare mutations predisposing to AF have been iden...
BACKGROUND The epidemiology of atrial fibrillation (AF) without comorbidities, known as 'lone AF', is uncertain. Although it has been considered a benign condition, we hypothesized that it confers a worse prognosis compared with a matched sample without AF. METHODS We described the proportion of AF without comorbidities (clinical, subclinical cardiovascular disease and triggers) among the ent...
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