نتایج جستجو برای: second demographic transition theory
تعداد نتایج: 1648958 فیلتر نتایج به سال:
the hydrogen abstraction reaction of oh radical with ch3ch2ocf2chf2 (hfe-374pc2) is investigated theoretically by semi-classical transition state theory. the stationary points on the potential energy surface of the reaction are located by using kmlyp density functional method along with 6-311++g(d,p) basis set. vibrational anharmonicity coefficients, xij, required for semi-classical transition ...
Background: Infant's transition is a challenge for parents and the health system that requires ongoing assessment and management to improve each newborn`s growth and development. The purpose of this study was to explore the management of infant` transition from neonatal intensive care unit (NICU) to home.Materials and Methods: We used a grounded theory study to explore and describe the manageme...
The article considers the changing position of women and the family from the Second World War until today using the UK as its example. It offers a theoretical perspective by setting out to examine the possibility that the rise of second-wave feminism both reflected and spearheaded an aspect of demographic transition to non-replacement populations. It considers the tension between the formation ...
There is a wide-spread belief in the literature on Bose-Einstein condensation of interacting atoms that all variants of mean-field theory incorrectly describe the condensation phase transition, exhibiting, instead of the necessary second-order transition, a first-order transition, even for weakly interacting Bose gas. In the present paper, it is shown that a self-consistent mean-field approach ...
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