on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...

this study investigates the strategies native english and persian speakers employ for expressing gratitude in different situations. the strategies of persian efl learners are also compared with english strategies in order to find the differences that may exist between these two languages. social status and size of imposition of the favor are social variables which are investigated in detail for...

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

‏‎the community dynamics of aquatic coleoptera(insecta)in one of the spring-stream habitats of bammo national park in fars province called cheshmeh-ye-ghanbari is studied as a pilot project and model for acquaintance with and furthering the biodiversity studies on fauna of iran. sixteen species-populations out of nineteen of this community were already identified for their taxonomy and for thei...

in the first chapter we study the necessary background of structure of commutators of operators and show what the commutator of two operators on a separable hilbert space looks like. in the second chapter we study basic property of jb and jb-algebras, jc and jc-algebras. the purpose of this chapter is to describe derivations of reversible jc-algebras in term of derivations of b (h) which are we...

the frame semantic theory is a nascent approach in the area of translation studies which goes beyond the linguistic barriers and helps us to incorporate cognitive and cultural factors to the study of translation. based on rojos analytical model (2002b), which centered in the frames or knowledge structures activated in the text, the present research explores the various translation problems that...

One of the important and effective factors in improving and increasing quality of teaching and learning is appropriate educational space. Improving physical space can help students in emotional, cognitive and psycho - motor domain and promote their motivations. In this research researcher has investigated and evaluated the physical condition of Isfahan schools with respect to standards set fort...

Having a mild and humid climate, Gilan province is closer to the comfort zone than other regions of Iran. In addition, the use of radiation, wind, precipitation and humidity components in the spatial organization of native houses has led to the formation of a semi-open space next to the closed space. In general, the placement of spaces in this climate is such that there is no clear border betwe...

Background and Aim: Urban outdoor space is an area of social interactions and face-to-face encounters due to the high power of certain spaces in various exchanges, such as information. The COVID-19 pandemic has had a profound effect on these relationships, resulting in numerous shifts in human mobility and interaction patterns, especially in cities. However, urban outdoor spaces have the potent...