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981.
Marc H. Bornstein Janet A. DiPietro Chun‐Shin Hahn Kathleen Painter O. Maurice Haynes Kathleen A. Costigan 《Infancy》2002,3(4):475-494
Fetal cardiac function was measured at 24, 30, and 36 weeks gestation and quantified in terms of heart rate, variability, and episodic accelerations. Children's representational capacity was evaluated at 27 months in terms of language and play. Thirty‐ and 36‐wcek‐old fetuses that displayed greater heart‐rate variability and more episodic accelerations, and fetuses that exhibited a more precipitous increase in heart‐rate variability and acceleration over gestation achieved higher levels of language competence. Thirty‐six‐week‐old fetuses with higher heart‐rate variability and accelerations, and steeper growth trajectories over gestation, achieved higher levels of symbolic play. Cardiac patterning during gestation may reflect an underlying neural substrate that persists through early childhood: Individual variation in rate of development could be stable, or efficient cardiac function could positively influence the underlying neural substrate to enhance cognitive performance. 相似文献
982.
983.
Patricia Lewis 《Gender, Work and Organization》2006,13(5):453-469
The emphasis in research on female entrepreneurship remains focused on the impact of gender on women’s experience of business ownership, often demonstrated through comparisons of male and female entrepreneurs. By contrast, this article explores the differences and divisions between women business owners who are silent about gender issues and those who are not. The main data drawn on in the article are e‐mails conducted through a web‐based entrepreneurial network set up to promote and support women in business, supplemented with interview material derived from an interview study of 19 women business owners. By considering the way in which some women business owners not only treat entrepreneurship as gender‐neutral, but also seek to conceal its gendered nature, we can see how some female entrepreneurs are trying to avoid being identified as different from the masculine norm of entrepreneurship. 相似文献
984.
In this study, three factors appear to influence significantly whether a child in foster care would be returned to the parent. The factors proved to be the number of persons in the parent's home, the number of friends in the neighborhood, and the frequency with which the parent saw those friends. 相似文献
985.
986.
987.
In the assessment of developmental and reproductive effects, the timing and duration of exposures to chemical compounds or other environmental contaminants are of particular interest, as the gestational cycle is known to have periods of increased sensitivity. The goal of this research is to identify optimal experimental designs for conducting developmental toxicity studies when the effects of both exposure level and duration of exposure are of interest. The elements of the study design considered in this evaluation are the allocation of animals to dose-duration exposure groups and the determination of the most efficient intermediate exposure levels. The optimality of various designs is assessed via the accuracy of the estimated excess risk as well as testing criteria. Simulation studies are conducted to compare these criteria and determine optimal design strategies under various underlying dose-response patterns. Asymptotic results are also derived to lend support to the simulation studies. 相似文献
988.
989.
This paper discusses the advances in care of children with diabetes mellitus, with particular reference to ocular disease, and its prevention in children. Emphasis is upon the inter-disciplinary care of children. Suggested ways of preventing later diabetic problems. 相似文献
990.
A.-C. Hermansson V. A. Carlsson J. O. Hörnquist M. Thyberg 《International Journal of Social Welfare》1995,4(4):255-261
Sixty-one newly arrived war-wounded refugees were interviewed about their background and flight while treated at the Medical Center for Refugees, University Hospital, Linköping, Sweden. They came from 9 countries in Asia, Africa and Latin America. Spinal cord injuries, nerve lesions, amputations and fractures were the most frequent injuries. The group was heavily burdened with regard to factors that might be of significance for wellbeing and integration in Swedish society: torture (51%), imprisonment (49%), loss of kin in war (62%), difficulties while growing up (54%), little or no schooling (48%), not having made the decision to flee oneself (46%) and having to leave the family behind (90%). This study is a first step in a longitudinal research project to shed light upon the situation of war-wounded refugees on arrival in Sweden and after 2 years. 相似文献