نتایج جستجو برای: فرایند snd
تعداد نتایج: 36066 فیلتر نتایج به سال:
The Dirac particle SD is investigated by means of dynamic methods, i.e. without a use of the principles of quantum mechanics. It is shown that the Pauli particle SP and the nonrelativistic approximation SnD of the Dirac particle SD are different dynamic systems. SnD contains the high frequency degrees of freedom, which are absent in the dynamic system SP. It means that the nonrelativistic Dirac...
In the SND experiment at VEPP-2M e + e − collider the φ(1020) → ηγ → 3π 0 γ decay was studied. The branching ratio B(φ → ηγ) = (1.246 ± 0.025 ± 0.057) % was measured.
BACKGROUND The aim of this prospective study was to evaluate the effect of the closed loop stimulation (CLS) on the ejection fraction in pediatric patients, affected by complete atrioventricular block (CAVB) or CAVB and sinus node dysfunction (SND), with a previously implanted pacemaker (PM) and ventricular dysfunction. The role of electrical therapy in the treatment of pediatric patients with ...
The first ten cycles following cessation of atrial pacing were evaluated in 44 control subjects (mean age 52.9 +/- 14.88 yr) and 39 patients (mean age 62.9 +/- 15.41 yr) suspected of having sinus node dysfunction (SND). The maximal cycle length for each postpacing cycle following several pacing periods in each control subject was determined, and was normalized by dividing it by the subject's me...
OBJECTIVES/HYPOTHESIS Robot-assisted neck dissection (ND) in head and neck cancer patients has been demonstrated to be feasible. We hypothesized that surgery for parotid cancer could be achieved via a gasless modified facelift approach using the robotic system. We intended to evaluate the feasibility of robot-assisted selective ND (SND) via a modified facelift (MFL) approach in parotid gland ca...
BACKGROUND Sentinel node biopsy (SNB) has been proposed for staging of N0 neck in oral/oropharyngeal carcinomas. It is claimed that SNB may be superior to selective neck dissection (SND) with respect to quality of life (QOL) and postoperative morbidity. METHODS Twenty-four patients after SNB and 25 patients after SND (levels I-III) were enrolled. QOL and psychosocial variables were assessed b...
The Dirac particle SD is investigated by means of dynamic methods, i.e. without a use of the principles of quantum mechanics. It is shown that the Pauli particle SP and the nonrelativistic approximation SnD of the Dirac particle SD are different dynamic systems. SnD contains the high frequency degrees of freedom, which are absent in the dynamic system SP. It means that the nonrelativistic Dirac...
AIMS Several studies have tested non-pharmacological therapies for atrial tachyarrhythmias (ATs) by measuring the cumulative time (burden) the patient spends in arrhythmia. Contradictory results questioned either therapy efficacy or statistical power of the trials. We studied AT burden variability in patients paced for sinus node disease (SND) in order to interpret currently published data appr...
This paper examines whether the supervisory objective of strengthening market discipline is compatible with the one of enhancing competitive equality for internationally active banks. This issue is empirically investigated by comparing the determinants of major US and European banks’ subordinated notes and debentures (SND) spreads. Three main results emerge. First, the spread/rating relationshi...
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