based on the latest records of typhlops vermicularis merrem, 1820 from iran, this species is distributed in the northern and southern regions of the country. in this study, new records of typhlops vermicularis are presented and it is shown that distribution range of this species is extended towards the eastern and western iran, and according to the new distribution map, it can be assumed that t...

this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...

.In a knowledge-based economy, the development of knowledge and skills leads to innovation which in turn will lead to increase in productivity and revenue and to decrease unemployment. Therefore, according to the importance of using knowledge to improve economic conditions, the current research has been tried to test and analyze the impact of knowledge-based economy on controlling unemployment ...

The profitability of momentum and contrarian strategies indicates the predictability of stock returns, so these strategies contradict the concept of market efficiency. This paper investigates the profitability of intermediate and short-term horizon trading strategies in Tehran Stock Exchange. To do this, a sample of 50 companies accepted in Tehran Stock Exchange for the period of 2002 to 2007 w...

in chapter one we will describe definitions and preliminary results to provide the global context of our own results to be presented in detail in the subsequent chapters in chapter two we consider degree-one maps of the circle and we study their rotation set. our main result in this chapter says that if the map is topologically mixing then its rotation interval is nontrivial (that is, not reduc...

one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...

this study was an attempt to investigate the effect of subtitling on vocabulary learning among iranian intermediate students. to find the homogeneity of the groups, tofel test was administered to student in kish mehr institute in garmsar. after analyzing the data, 60 participants (female students) who scored within the range of one standard deviation above and below the mean, were selected as h...

the present study is an attempt to investigate the potential impact of inspirational quotes on improving english abstract vocabulary recall. to achieve this goal, a multiple choice language proficiency test of 60 items including vocabulary and grammar component was administered to a sample of 63 second-semester male and female students whose age ranged between 17 to 22 and they were studying en...

برگروه لی‎$ g=so_{0}(n,1) $‎، یک متریک ناوردای چپ تعریف می شود که از فرم کیلینگ-کارتان بدست می آید. زیرگروه فشرده همبند بیشین آن عبارت است از ‎$ so(n)=so(n) imeslbrace 1 brace $‎که با‎$ k $‎ نمایش می دهیم.گروه طولپایی های‎$ g $‎ عبارت است از ‎egin{equation*}‎ ‎isom_{0}(g)=g imes k‎, ‎end{equation*}‎ یعنی ضرب چپ توسط عضو های‎$ g $‎ و ضرب راست توسط عضو های ‎$ k $.‎ بنابراین، دو عمل برای ‎$ k...