background: a lot of women die each because of unwanted pregnancies and unsafe abortion. according to importance of unwanted pregnancies, the purpose of the current study is to determine prevalence of unwanted pregnancy and its related factors in interruption method users in gorgan health-care centers in 2010. methods: in this descriptive-analytical study, 339 eligible women that were under sup...

this research was done in order to submit a model for salinity map made with tm satellite data and salinity values in a buienzahra. the necessary processings such as principal component analysis and producing of different indices was done on the main bands. the 38 soil samples using random sampling (with 10×10 km dimension) from different horizons were designed and performed on the study area. ...

abiotic stress are the main factors causing low growth and yield in crops. osmotic stress is an important stress and in case of salinity stress is presuming at the first step. there are different experimental and computational methods to study plant response to stress and lead to better understanding of mechanism involved in these conditions and improvement of plant tolerance to stress. upstrea...

the activities of 4-aminobutyric-2-oxoglutaric acid transaminase (gaba-t) and succinate semialdehyde dehydrogenase (ssadh) were determined in mouse hypothalamus after peripheral injections of cholecystokinin-8 (cck-x)and/or caerulein (cln). gaba transaminase activity was measured utilizing endogenous succinate semialdellyde dehydrogenase to convert the product of gab a-t, succinate semialdehyde...

purpose– analysis of non-prismatic beams has been focused of attention due to wide use in complex structures such as aircraft, turbine blades and space vehicles. apart from aesthetic aspect, optimization of strength and weight is achieved in use of this type of structures. the purpose of this paper is to present new shape functions, namely 3-node basic displacement functions (bdfs) for derivati...

splash erosion recognized as first stage of erosion process that results of bombing soil surface with rain drop. falling rain drops to soil surface resulted moving soil particles and destructing soil structure. at this research effects of various pam rate (0, 2, 4 and 6 kg.ha) on splash erosion on three soil textuere clay, silty clay and sandy clay loam was tested. simulations were done with ra...

abstract: the first period of abbasi dynasty is one of the glorious periods of islamic culture and civilization, which is known as the golden era of islamic culture and civilization. because in this era the power and riches of abbasi dynasty increased so high that led the islamic civilization grow in the various fields of science, literature and art especially music. while pretending as firm re...

the present paper is concerned with the structural characteristics and contents of the russian resistance poets from the outset up to the end of the world war ii, 1941-1945. regarding the linguistic and literary structures of the resistance poetry of this period, such features as changes in the lexical structure of poems, outspokenness, proximity of poetry to slogans can be easily observed. sem...