نتایج جستجو برای: changes in childbearing behavior can be explained

تعداد نتایج: 17335649  

Journal: :Journal of Modern Physics 2023

We proposed an empirical equation for a fine-structure constant: . Then, where mp and me are the rest mass of proton electron, respectively. In this report, using electrochemical method, we equivalent circuit. refined version our own old equations about electromagnetic force gravity. Regarding factors 9/2 π, used 3.132011447 4.488519503, The calculated values Tc G 2.726312 K 6.673778 × 10-11 (m...

ژورنال: طلوع بهداشت یزد 2017
جاروندی, فرزانه, حاجی نجف, سعیده, ساکی, مریم, شاکری نژاد, قدرت اله,

Introduction: During the recent years, significant demographic changes have occurred in the world. One of the most important changes has been an unprecedented decline in fertility in all regions of the world. Parallel to these changes, the Islamic Republic of Iran has experienced extensive changes, So that during the last three decades, the fertility rate in Iran has fallen astonishingly. The a...

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