نتایج جستجو برای: zygote intrafallopian transfer
تعداد نتایج: 293095 فیلتر نتایج به سال:
In this paper, we present a general derivation of a modified fluctuation-dissipation theorem (MFDT) valid near an arbitrary non-stationary state for a system obeying Markovian dynamics. We show that the method for deriving modified fluctuation-dissipation theorems near non-equilibrium stationary states used by Prost et al (2009 Phys. Rev. Lett. 103 090601) is generalizable to non-stationary sta...
where e11 and e33 denote the flexoelectric coefficients related to splay and bend distortions, respectively. The phenomenon is somewhat similar to the piezoelectric effect in certain solid crystals where a coupling between mechanical stress and polarization is observed, so that the polarization manifests itself due to a positional deformation. The flexoelectric effect has attracted a great deal...
BACKGROUND Cash-transfer programmes can improve the wellbeing of vulnerable children, but few studies have rigorously assessed their effectiveness in sub-Saharan Africa. We investigated the effects of unconditional cash transfers (UCTs) and conditional cash transfers (CCTs) on birth registration, vaccination uptake, and school attendance in children in Zimbabwe. METHODS We did a matched, clus...
Inheritance Bazex-Dupré-Christol syndrome is an X-linked dominant genodermatosis, with a prevalence below 1/1 000 000. The female to male ratio reaches the expected 2:1, and females appear to be less affected than males. There is intrafamilial and interfamilial phenotypic variability (Lacombe and Taïeb, 1995; Kidd et al., 1996). Most cases are European patients. Oley syndrome (Oley et al., 1992...
Mitochondrial replacement techniques (MRTs) have the potential to allow prospective parents who are at risk of passing on mitochondrial disorders to have healthy children to whom they are genetically related. Mitochondrial disorders are often debilitating or even lifeshortening and the development of techniques to prevent them is a welcome prospect. Ethical concerns have however been raised abo...
Background: Reviewing the literature, reveals that pentoxifylline (PTX) plus tocopherol (vitamin E) are used mainly to promote sperm quality. However trials focusing on the effects of these drugs in female partner are limited. Combination of pentoxifylline and vitamin E appeared to improve the pregnancy rate in patients with a thin endometrium by increasing the endometrial thickness and improvi...
We construct a molecular model of an internal combustion engine, by coupling a Brownian ratchet with an exothermic chemical cycle. We derive explicitly the thermodynamically allowed couplings, and show that almost every such coupling will result in motion. We compute from this formalism the maximal transmission efficiency of Brownian gears. Cells have a service infrastructure, just like cities ...
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