نتایج جستجو برای: fb 11
تعداد نتایج: 391068 فیلتر نتایج به سال:
Background. The aim was to evaluate the effects of a 12-week, Facebook-delivered lifestyle counselling intervention, with or without physical activity self-monitoring, on physical activity and body mass index (BMI) in overweight and obese 13-16-year-old adolescents. Methods. Three-arm randomized controlled trial. Participants (n = 46) were randomly assigned to intervention and control groups: o...
Although in physiological conditions RR interval and systolic arterial pressure (SAP) are likely to interact in a closed loop, the traditional cross-spectral analysis cannot distinguish feedback (FB) from feedforward (FF) influences. In this study, a causal approach was applied for calculating the coherence from SAP to RR (Ks-r) and from RR to SAP (Kr-s), and the gain and phase of the barorefle...
CONTEXT Profound side-effects following intrathecal use of local anesthetics as the sole drugs of choice make spinal anesthesia for open appendicectomy uncommon. AIM The aim of this study was to evaluate the effectiveness of intra-operative analgesia produced by intrathecal tramadol and fentanyl during bupivacaine spinal anesthesia for open appendicectomy. SETTINGS AND DESIGN A prospective ...
BACKGROUND Deep inspiration breath hold (DIBH) reduces heart and left anterior descending artery (LAD) dose during left-sided breast radiation therapy (RT); however there is limited information about which patients derive the most benefit from DIBH. The primary objective of this study was to determine which patients benefit the most from DIBH by comparing percent reduction in mean cardiac dose ...
Limited information is available on the effects of foliar boron (B) application on soybean seed composition. The objective of this research was to investigate the effects of foliar B on seed composition (protein, oil, fatty acids, and sugars). Our hypothesis was that since B is involved in nitrogen and carbon metabolism, it may impact seed composition. A repeated greenhouse experiment was condu...
Encountering a foreign body (FB) in the kidney is uncommon. Most of the time a FB is introduced externally (violence or accident) or through endourological interventions. An ingested FB reaching the kidneys is extremely rare. This article includes an interesting case of FB, which apparently reached the kidney through the gastrointestinal tract as well as a brief review of the relevant literatur...
Delayed diagnosis of tracheobronchial foreign body (FB) aspiration is not uncommon in children. It occurs when symptoms are underappreciated and/or radiological findings are overlooked. In such cases serious complications can arise, which make the diagnosis and removal of the FB much more difficult. Here, we present a case where FB aspiration was misdiagnosed as asthma after a radio-opaque FB o...
We consider the upper bounds of the finite block length capacity Cn,FB(P ) of the discrete time Gaussian channel with feedback. We prove the refinements of relations Cn(P ) ≤ Cn,FB(P ) ≤ Cn(P ) + 1 2 and Cn(P ) ≤ Cn,FB(P ) ≤ 2Cn(P ), which are given by Cover and Pombra. And we prove the relation C2(P ) ≤ C2,FB(P ) < C2(2P ), which is a partial solution of the conjecture given by Cover.
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