نتایج جستجو برای: surrogate parents
تعداد نتایج: 104764 فیلتر نتایج به سال:
In developed nations, approximately half of household environments contain pets. Studies of Human-Animal Interaction (HAI) have proposed that there are health benefits and risks associated with pet ownership. However, accurately demonstrating and understanding these relationships first requires a better knowledge of factors associated with ownership of different pet types. A UK birth cohort, th...
The aim of this study was to evaluate the effect of prenatal exposure to lead, cadmium and mercury levels on the secondary sex ratio. Whole blood samples were collected from pregnant women enrolled in the Avon Longitudinal Study of Parents and Children (ALSPAC) study at a median gestational age of 11 weeks and were analyzed for lead, cadmium and mercury. Regression analysis was used to identify...
The technique of surrogate data has been used as a method to test for membership of particular classes of linear systems. We suggest an obvious extension of this to classes of nonlinear parametric models and demonstrate our methods with respiratory data from sleeping human infants. Although our data are clearly distinct from the different classes of linear systems we are unable to distinguish b...
In the light of remarkable advancement in medical science the use of medical treatment is increasingly using in order to overcome to the problem of infertility. One of the most popular of these medical treatments is the method of surrogacy. Surrogacy is an arrangement in which a woman carries and delivers a child for another couple. She may be the child's genetic mother (the more traditional fo...
STUDY QUESTION What impact does surrogacy have on the surrogates' own children? SUMMARY ANSWER The children of surrogate mothers do not experience any negative consequences as a result of their mother's decision to be a surrogate, irrespective of whether or not the surrogate uses her own egg. STUDY DESIGN, SIZE AND DURATION Participants were recruited as part of a study of the long-term eff...
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