نتایج جستجو برای: b 1999 creation and freedom tehran
تعداد نتایج: 16964742 فیلتر نتایج به سال:
Using microscopic models in which both photons and excitons are treated as microscopic degrees of freedom, we discuss polaritons of two cases: One is the case when excitonic parameters are time dependent. The time dependence causes creation of polaritons from a “false vacuum.” It is shown that both the creation sepctra and the creation efficiency are much different from the results of the previ...
abstract the primary purpose of this study was to explore the actual practices and cognitions of two groups of iranian eap teachers, i.e. language teachers and content teachers, with respect to teaching reading-comprehension and vocabulary. to this end, tehran university of medical sciences which authorizes both groups of teachers to teach eap courses was selected as the context of the study s...
Background and aim: Psoriasis is one of the most common inflammatory skin disorders with a genetic background. Several treatment modalities have been used, including systemic and bath PUVA. The aim of this study was to evaluate the efficacy of systemic and bath PUVA in the treatment of psoriasis in Razi Hospital.Materials and methods: This retrospective database study was done in Razi Hospital ...
BACKGROUND The purpose of this study was to evaluate mortality after coronary artery bypass grafting (CABG) comparing the use of only in situ arterial grafts with the use of arterial and venous conduits. METHODS AND RESULTS From April 1985 to March 1999, 1159 patients with multivessel disease underwent elective, isolated, primary, multiple CABG with at least one in situ arterial conduit. Pati...
We consider use of collective variables for description of composite fields as collective phenomena due to the strong coupling regime. We discuss two approaches, where identification of collective variables of complex quantum system does not depend on knowledge of other degrees of freedom: (a) collective variables as parameters of group transformations changing the path integral of the system, ...
The simple programming model and very low-overhead I/O capabilities of emerging packet processing techniques leveraging kernel-bypass poll-mode is gaining significant popularity for building high performance software middleboxes ( xmlns:xlink="http://www.w3.org/1999/xlink">aka xmlns:xlink="...
Introduction: The aim of this study was to investigating the relationship between knowledge management and training and development and human resource. Methods: The research method was descriptive-correlation and practical in terms of purpose, and in terms of data collection, it is field-based. The statistical population of this research consists of the employees of Tehran Municipal Sports Or...
The main purpose of this study was to investigate the role of social capital in the motivation of students for job creation. The statistical population of this study included all students of Islamic Azad University of Karaj (N=3200) that 178 cases of these students were selected as research samples according to the Cochran formula. Data were collected by using a regulated questionnaire whose co...
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