نتایج جستجو برای: after a while

تعداد نتایج: 13796823  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

2010

Governmental systems are one of the significant topics of constitutional law literature and comprehensive studies have been carried out on this issue. The answer to the question whether a parliamentary system, a presidential system or a mixed system is the most suitable system of government can change according to the political preferences of the countries. Since countries search for the best s...

Journal: :Journal of studies on alcohol 2003
Thor Norström Ole-Jørgen Skog

OBJECTIVE The objective of this study was to assess the impact of Saturday opening of alcohol retail shops in Sweden. METHOD An experimental design was applied. Prior to February 2000, all alcohol monopoly outlets we closed on Saturdays. After this date, stores in an experimental area (six counties) were open on Saturdays. In the control area (seven counties) the shops remained closed. To pre...

Journal: :iranian rehabilitation journal 0
mostafa pouya kian department of occupational health, school of medicine, tarbiat modares university, tehran, iran. hassan asilian mahabadi department of occupational health, school of medicine, tarbiat modares university, tehran, iran. seyedeh monavar yazdi department of psychology, faculty of education and psychology, alzahra university, tehran, iran. ebrahim hajizadeh department of biostatistics, faculty of mathematical sciences, tarbiat modares university, tehran, iran. ali nahvi department of mechatronics, faculty of electrical engineering, k.n. toosi university of technology, tehran, iran.

objectives: most studies have performed to identify the affective variables in using mobile phone by drivers based on interview and questionnaire. in this study call answering rate while driving was investigated in a sample of male postgraduate students of a university in tehran by a driving simulator. methods: six driving scenario designed differing in risk of driving. answer rate to mobile ph...

2016
Yi-Hao Kang Ye-Hong Chen Qi-Cheng Wu Bi-Hua Huang Yan Xia Jie Song

We propose an effective and flexible scheme for reverse engineering of a Hamiltonian by designing the evolution operators to eliminate the terms of Hamiltonian which are hard to be realized in practice. Different from transitionless quantum driving (TQD), the present scheme is focus on only one or parts of moving states in a D-dimension (D ≥ 3) system. The numerical simulation shows that the pr...

2010
Wen-Long Jin Daji Yuan Hao Yang WEN-LONG JIN DAJI YUAN HAO YANG

Journal: :Pediatrics 2015
Brett A Ewing Joan S Tucker Jeremy N V Miles Regina A Shih Magdalena Kulesza Eric R Pedersen Elizabeth J D'Amico

OBJECTIVE Little is known about risk factors in early adolescence that lead to driving under the influence (DUI) and riding with a drinking driver (RWDD). In a diverse group of adolescents, we longitudinally explored the influence of alcohol and marijuana (AM) use, AM beliefs, and peer and family factors (including familism) on DUI/RWDD in high school. METHODS We conducted 3 surveys 2 years a...

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