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991.
992.
Mary J. Bartholomew David J. Vose Linda R. Tollefson Curtis C. Travis 《Risk analysis》2005,25(1):99-108
A linear population risk model used by the U.S. Food and Drug Administration (FDA) Center for Veterinary Medicine (CVM) estimates the risk of human cases of campylobacteriosis caused by fluoroquinolone-resistant Campylobacter. Among the cases of campylobacteriosis attributed to domestically produced chicken, the fluoroquinolone resistance is assumed to result from the use of fluoroquinolones in poultry in the United States. Properties of the linear population risk model are contrasted with those of a farm-to-fork model commonly used for microbial risk assessments. The utility of the linear population model for the purpose for which it was used by CVM is discussed. 相似文献
993.
The relation between skin color and intelligence was examined in a representative sample of 430 adult African Americans. A statistically significant positive correlation of 0.17 was obtained between light skin color and intelligence. It is proposed that the result supports the hypothesis that the level of intelligence in African Americans is significantly determined by the proportion of Caucasian genes. 相似文献
994.
Using data on 189 adolescents who have a living biological father and a resident stepfather, we examined the effects of children's relationships with both fathers on child outcomes. Interview data from mothers and stepfathers provide an assessment of two types of child outcomes, internalizing and externalizing problems. Interviews with the children themselves provide data about the child's relationships with the mother, stepfather, and biological father. Results show a significant positive association between quality of relationship with stepfathers and child outcomes. Relationships with noncustodial fathers have less consistent but appear to have positive effects on child outcomes. We find that many children have good relationships with both fathers and that, even controlling for quality of relationship with the mother, good relationships with both fathers are associated with better child outcomes. 相似文献
995.
996.
Lynn Kemp 《Disability & Society》2002,17(2):205-218
Australia has legislation that states that 'people with disabilities have the same rights as other members of society to services', yet nearly one-third of all people with spinal injuries have their need for community services unmet. If all people have the same rights, why are some people's needs unmet? How equitable is the distribution of services? This study challenges service providers' beliefs that decisions about the provision and distribution of services are made objectively and equitably. To obtain needed services, people had to demonstrate their worthiness by conforming to providers' stereotype-based expectations of the disabled, based in entrenched philosophies. Service structures reinforce these disabling ideologies Service provision must thus undergo fundamental philosophical and structural change in order to meet community service needs. 相似文献
997.
998.
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Previous research indicates that children of adolescent mothers are more likely to experience an adolescent birth than are children of older mothers. Using a longitudinal sample of 293 high‐risk mothers and their 19‐year‐old children, we investigated mediators of the intergenerational pattern of adolescent childbearing. Results from multigroup path models indicate that the intergenerational effect is (a) significant for children of unmarried mothers above and beyond mother’s prebirth socioeconomic status and education level, (b) fully mediated through early sexual intercourse related to presence of a father figure and early home environment for girls, and (c) partially mediated by early physical development for boys. Relation of findings to current models of early sexual behavior and childbearing is discussed. 相似文献
1000.
Lisa Y. Flores LaVerne A. Berkel Johanna E. Nilsson Lizette Ojeda Shiloh E. Jordan Ginger L. Lynn Veronica M. Leal 《The Career development quarterly》2006,55(1):2-21
The authors examined 281 racial/ethnic minority (REM) career‐related studies published in the Journal of Vocational Behavior, The Career Development Quarterly (CDQ), the Journal of Career Assessment (JCA), and the Journal of Career Development between 1969 and 2004. Publication trends, article content and type, samples, and leading author and institutional contributors are reported. CDQ published the largest percentage of these articles (33.5%, n = 94), whereas JCA had the largest percentage (13%) of REM career articles relative to other articles it published during this time frame. There was an increase in the number of REM career articles being published across the years. 相似文献