نتایج جستجو برای: term and short
تعداد نتایج: 16937679 فیلتر نتایج به سال:
this study investigated how group formation method, namely student-selected vs. teacher-assigned, influences the results of the community model of teaching creative writing; i.e., group dynamics and group outcome (the quality of performance). the study adopted an experimental comparison group and microgenetic research design to observe the change process over a relatively short period of time. ...
The present study is dealing with presenting a model for evaluating the effectiveness of short and medium-term training courses at Mazandaran University of Medical Sciences. a combined research method (quantitative, qualitative) was conducted. The statistical population consists of specialists and university administrators and staff of the Medical Sciences Organization in Mazandaran Province. ...
abstract: introduction: nitric oxide (no) is a retrograde messenger in hippocampal synaptic plasticity which involves in learning and memory processes. previous studies revealed that hippocampal pyramidal cells contain no synthase (nos) enzyme which produce no and could be a promising target to evaluate the role of no in brain cognitive functions. so in this study, using nos inhibitor (l-name),...
Background and aims: Formaldehyde (FA) is a colorless toxic gas used as a disinfectant and preservative and known as a carcinogen and strong irritant. Due to its germicidal, preservative and fixative properties, formaldehyde or other chemicals that potentially produce formaldehyde, are used in some cosmetics. OSHA has warned about hair dresser’s exposure to FA higher than thre...
در این مقاله با استفاده از یک مدل سری زمانی ساختاری چند متغیره شامل چهار متغیر کلیدی اقتصاد کلان و مالی، رابطه بین این متغیرها را در چرخههای کوتاهمدت و میانمدت برای اقتصاد ایران بدست میآوردیم. جنبه جدید رویکرد مورد استفاده این است که از طریق چرخه های برآورد شده، پویاییهای کوتاهمدت و میان مدت این متغیرها تجزیه میشود. نتایج پژوهش نشان میدهد که حرکات چرخهای حجم اعتبار و وام مسکن به طور عم...
Agricultural sector is one of the most important sectors of the country regarding both economic and employment development. This sector which is influenced by macroeconomic variables and policies interacts with other sectors importantly. In this regard, this study was conducted to investigate the short-term and long-term effects of government macroeconomic policies on the development of employm...
the ability of artificial neural network (ann) for estimating the natural gas demand load for the next day and month of the populated cities has shown to be a real concern. as the most applicable network, the ann with multi-layer back propagation perceptrons is used to approximate functions. throughout the current work, the daily effective temperature is determined, and then the weather data w...
high resolution range profile (hrrp) is being known as one of the most powerful tools for radar target recognition. the main problem with range profile for radar target recognition is its sensitivity to aspect angle. to overcome this problem, consecutive samples of hrrp (or feature vectors extracted from them)were assumed to be identically independently distributed (iid) in small frames of aspe...
More than one hundred countries are using wind energy due to their easy implementation, cheap energy, and high energy efficiency. Implementation of FACTS devices in Wind Energy Conversion Systems (WECS) has been dramatically improved due to cooperative and accurate performance of FACTS devices. However, dealing with wind turbine faults promptly is crucial. Short-term and long-term faults may ha...
With the emergence of the phenomenon of "Arab revolutions", the Middle East has entered a new era. The investigation of the goals of the Arab revolutions requires their pathology. The developments of the Arab world, although occurred with the self-immolation of a young Tunisian and its widespread reflection in the global media, but these events origins returns to the previous years. These count...
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