BACKGROUND The mechanism of development of atrial fibrillation (AF) in patients undergoing coronary artery bypass grafting (CABG) has not been clearly defined, and the involvement of multiple factors such as advanced age, withdrawal of β-blockers, inadequate atrial protection, and electrolyte imbalance, particularly hypomagnesemia has been documented by several authors. Despite all the availabl...

: Bu araştırmanın amacı, Suriyeli mülteci öğrencilerin fen bilimleri dersine yönelik tutumlarının okula yabancılaşma üzerindeki etkisinde dersinde yapılan etkinliklere tutumların aracılık etkisini tespit etmektir. Araştırmanın evrenini Ankara’da bulunan 7 farklı okulda öğrenim gören 1370 öğrenci oluşturmaktadır. örneklemini ise bu okullarda 347 ortaöğretim öğrencisi Veriler anket uygulaması ara...

The recent severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) pandemic has highlighted the importance of pulmonary computed tomography (CT) for diagnosis and prognostic stratification this new viral pneumonia. 1370 lung CT scans (performed at time admission) consecutive patients hospitalized SARS-CoV-2 in Northern Italy during first epidemic wave were analyzed by a radiologica...

We summarize some persistent problems in scalar spectroscopy and discuss what could be learned here from charmless B-decays. Recent experimental results are discussed in comparison with theoretical expectations: a simple model based on penguin dominance leads to various symmetry relations in good agreement with recent data; a factorisation approach yields absolute predictions of rates. For more...