نتایج جستجو برای: four factors were identified factor 1 includes li
تعداد نتایج: 6428031 فیلتر نتایج به سال:
objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...
abstract although music possesses some kind of power and using it has been welcome by many students in language classrooms, it seems that they take a non-serious image of the lesson while listening to songs and they may think that it is a matter of fun. the main objective of the present study was to investigate whether learning a foreign language through musical texts (songs) can have an impac...
abstract this research has been carried out with the purpose of investigating the conditions and related elements of the employment of the educational sciences graduates of hamedan province universities in 1382-1387 academic years. it has been a descriptive research of a correlation kind, and the population number has been 1180 grduates of payam- e noor universites in asad – abaad, kaboudaraha...
because of reducing the number of spectators of football premier league, this study is seeking for identifying factors put the most impact on this decline. the statistical population consisted of all spectators in iran football premier league in 2015-16, out of which 395 spectators were randomly selected as the research samples. the data were collected via a researcher-made questionnaire. the f...
The main purpose of this study was to explore the factors affecting optimal management of agricultural water in Hamadan's area. The statistical population of the study included all Hamadan's farmers. A number of 148 farmers were selected randomly through a proportional sampling method in two phases. Both questionnaire and interview techniques were used in order to collect data. The empirical an...
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
potassium is an essential plant macronutrient. different microorganisms including bacteria, fungi, yeast, algae and mosses are able to decompose silicate minerals of soil and to dissolve nutrient such as k, fe, zn and si, among them bacteria are more important. the aim of this study was to investigate the influence of two bacteria (azospirillum lipoferum and azotobacter chrococoum) on soil avai...
the present study is paid to the evaluation of the welfare program of the unemployment insurance in iran. the main purpose which was the main reason for performing this thesis, was the unemployment insurance plan’s challenges in iran such as financial problems of this plan, prolongation of the credit receipt for some insured people, unemployment slow exiting from the unemployment insurance fund...
BACKGROUND Although p21 is an important component that regulates cell-cycle progression, no consensus has been reached about its clinicopathological significance in esophageal squamous cell carcinoma (ESCC). In the present study, we investigated its prognostic significance and correlation with cyclin-D1 (CCND1) expression in ESCC. MATERIALS AND METHODS The p21 labeling index (LI) was calculat...
conclusions to resolve the unequal geographic distribution of physicians, it is necessary to consider the key factors affecting the attractiveness of a district for gps and the existing demand for health services. attempting to resolve the developmental inequalities among different districts, as well as implementing motivational policies to encourage physicians to work in less developed distric...
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