: 1989 – 2009
نویسندگان
چکیده
منابع مشابه
بررسی میزان همکاری های علمی کشورهای حوزه خلیج فارس با کشورهای اسکاندیناوی در پایگاه اطلاعاتی اسکاپوس طی سال های 1989-2009
در سالهای اخیر مطالعات فراوانی توسط پژوهشگران و سیاستگذاران علمی کشورها در رابطه با همکاریهای علمی پژوهشی صورت گرفته و اهمیت و مزایای این همکاریها و همچنین جنبههای گوناگون آن به شدت مورد توجه قرار گرفته است. هدف از این پژوهش بررسی میزان همکاریهای علمی کشورهای حوزه خلیج فارس با کشورهای اسکاندیناوی در پایگاه اطلاعاتی اسکاپوس طی سالهای 1989-2009، است. پژوهش حاضر، پژوهشی پیمایشی- توصیفی است...
متن کاملHepatitis B sero-markers evaluation in People born in 1989 in Zabol
Background: Hepatitis B virus is known as one of the most common pathogen in the world. 350 million people are chronic carrier in the world and more than 3/4 hepatitis B virus infection are in Middle East and Africa. Various statistics of this infection has been reported in Iran. Since vaccination plan of 1989 born not only in Zabol but through Iran, will be performed and there is no exact info...
متن کاملFive-decade profile of women in leadership positions at ophthalmic publications.
OBJECTIVE To evaluate the balance between the sexes of published ophthalmic material at the editorial, reviewer, and author levels. DESIGN Cross-sectional study of 3 journals, American Journal of Ophthalmology, Archives of Ophthalmology, and Ophthalmology, for 1969, 1979, 1989, 1999, and 2009. The data were compared with ophthalmologist-in-training and physician profile in major contributing ...
متن کاملThalassemia in Iran in Last Twenty Years: the Carrier Rates and the Births Trend
Background: Iran is one of the countries located on “the thalassemia belt” with a significant annual number of thalassemia new births. Given the importance of thalassemia prevention, a program to this effect was approved in Iran in 1995. Screening of carrier couples and prenatal diagnosis were the two main elements of this program. In the present study, the authors have tried to address the imp...
متن کاملDetection and prediction of land use/ land cover changes using Markov chain model and Cellular Automata (CA-Markov), (Case study: Darab plain)
unprincipled changes in land use are major challenges for many countries and different regions of the world, which in turn have devastating effects on natural resources, Therefore, the study of land-use changes has a fundamental and important role for environmental studies. The purpose of this study is to detect and predicting of land use/ land cover (LULC) changes in Darab plain through the Ma...
متن کاملPrimary succession on Mount St. Helens, with reference to Surtsey
STUDY AREA The 18 May 1980 eruptions of Mount St. Helens formed a complex pattern of new and denuded land (Dale et al. 2005). This extraordinary landscape beckoned irresistibly to ecologists to study reassembly (Fig. 1). This report draws on studies conducted by myself and colleagues since 1980. Methods are in the references. Vegetation structure was monitored in transects of permanent plots: 1...
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