نتایج جستجو برای: 1231

تعداد نتایج: 509  

2002
Katherine Peterson Anna Stefanopoulou Yan Wang

A considerable amount of research is currently being done on electromechanical valve (EMV) actuators as a potential replacement for the camshaft in order to achieve variable valve timing. Unfortunately, EMV actuators suffer from large impact velocities between the valve, valve seat, and the actuator itself resulting in excessive wear on the system and producing unacceptable levels of noise. Add...

Journal: :FEMS microbiology letters 2015
Jing Guo Zhiming Rao Taowei Yang Zaiwei Man Meijuan Xu Xian Zhang Shang-Tian Yang

A 30-kDa novel tyrosinase was purified to homogeneity. The Km for L-Dopa and L-tyrosine were determined as 0.42 and 0.25 mM. The 1231 bp (base pair) melC gene and its 167 bp promoter Pskmel were obtained by thermal asymmetric interlaced polymerase chain reaction based on the amino acids fragment obtained from MS results of the purified enzyme. The protein sequence of tyrosinase shows maximum id...

2005
Thomas Wichter Gerhard Hindricks Hartmut Lerch Martin Borggrefe Otmar Schober Gunter Breithardt

Background In patients with arrhythmogenic right ventricular cardiomyopathy (ARVC), the frequent provocation of ventricular tachycardia during exercise, the sensitivity toward catecholamines, and the response toward antiarrhythmic drug regimen with antiadrenergic properties suggest an involvement of the sympathetic nervous system in arrhythmogenesis. Methods and Results To analyze the presence,...

Journal: :Computers in Human Behavior 2023

Social virtual reality (social VR) platforms are gaining popularity among users. Previous qualitative research suggests that feelings of presence can make these an attractive environment to obtain social support from others. Building on exploratory insights, we carried out a quantitative study illuminate how different types in VR facilitate support. The results large survey conducted users ( N ...

Journal: :Annals OR 2008
Jiashan Tang Yiqiang Q. Zhao

Motivated by applications in computer networks, in this talk, we consider a tandem queue with feedback.In this model, both the interarrival time and the service time are exponential. Upon completion of the service at thesecond station, the customer either leaves the system with probability p or goes back together with all customersin the second queue to the first queue with probabil...

Journal: :Chest 2005
Sarah A Spinler Paul Dobesh

1 Um SW, Choi CM, Lee CT, et al. Prospective analysis of clinical characteristics and risk factors of postbronchoscopy fever. Chest 2004; 125:945–952 2 Koh WJ, Lee KS, Kwon OJ, et al. Bilateral bronchiectasis and bronchiolitis at thin-section CT: diagnostic implications in non-tuberculous mycobacterial pulmonary infection. Radiology 2005; 235:282–288 3 Yamazaki Y, Kubo K, Sekiguchi M, et al. An...

Journal: :Physical chemistry chemical physics : PCCP 2016
Jinfeng Liu John Z H Zhang Xiao He

Geometry optimization and vibrational spectra (infrared and Raman spectra) calculations of proteins are carried out by a quantum chemical approach using the EE-GMFCC (electrostatically embedded generalized molecular fractionation with conjugate caps) method (J. Phys. Chem. A, 2013, 117, 7149). The first and second derivatives of the EE-GMFCC energy are derived and employed in geometry optimizat...

Journal: :The Yale Journal of Biology and Medicine 1936
Paul William Preu

THEORY AND PRACTICE OF PSYCHIATRY. By William S. Sadler. C. V. Mosby Company, St. Louis, 1936. Pp. xxii + 1231. $10. This is the largest text-book of psychiatry in English. It covers the entire field of psychiatry, with special emphasis upon the diagnosis and treatment of the less severe personality disturbances (neuroses) which may be handled in the office of the private practitioner. The book...

2017
Sheng Yue Jian Jia Ning Zhang Yi-Yang Zhan Hai-Xia Ding

The role of IL-6 rs1800795 polymorphism in the development of hypertension has been inclusive. Therefore, the purpose of our study was to determine whether there is an association between IL-6 rs1800795 polymorphism and hypertension risk. PubMed, Embase and China National Knowledge Infrastructure (CNKI) were searched till Jun 2017. A total of 7 case-control studies with 1231 cases and 1122 cont...

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