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The polymorphism of the properdin factor B (Bf, C3-proactivator, GBG = glycin-rich-beta-glycoprotein) has been investigated by high voltage agarose gel immunofixation electrophoresis in 1115 unrelated persons from Southern Germany. Seven phenotypes were observed; the allele frequencies were calculated as BfS = 0.8094, BfF = 0.1790, BfSI = 0.0094, BfFI = 0.0022. A study of 94 parents with 98 children and 420 mother-child combinations showed no deviation from the assumed autosomal codominant mode of inheritance. In one additional family the findings suggested the existence of a silent allele at the Bf-locus. 相似文献
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Schlomer Gabriel L. Cleveland H. Harrington Deutsch Arielle R. Vandenbergh David J. Feinberg Mark E. Greenberg Mark T. Spoth Richard L. Redmond Cleve 《Journal of youth and adolescence》2019,48(1):71-85
Journal of Youth and Adolescence - Better integrating human developmental factors in genomic research is part of a set of next steps for testing gene-by-environment interaction hypotheses. This... 相似文献
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Legal education is in a period of rapid development driven by changing industry demands and developing technologies. This paper will describe an innovative pilot study which utilises new technologies to provide an alternative mode of teaching and learning to meet growing industry demands for graduates who are technologically savvy and have strong communication and collaboration skills. The pilot study redesigns a law unit combining a more traditional approach with an approach in which online collaboration is critical to student learning as a teaching and assessment tool. After completing an online collaborative activity as part of their assessment for the unit, students completed an online survey to identify their perspectives of the online collaborative experience. The online survey data was analysed to identify common themes and the experiences of students are shared in this paper. The paper provides an example of how instructors might take advantage of a learning design process, online tools and infrastructure to develop educational experiences which promote communication and collaboration within the law discipline. It will also include five recommendations to consider when including online collaboration in unit design for law students. 相似文献
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Rhonda K. Lewis Felecia A. Lee Chris M. Kirk Michelle Redmond 《Journal of prevention & intervention in the community》2013,41(4):289-298
The purpose of this article is to examine the attitudes and substance use behaviors of African American adolescents living in the Midwest. A baseline survey was administered to 463 African American teens between the ages of 11–19. The article examines the relationship between attitudes toward drugs and drug-using behavior in this African American sample. Drug use will be compared to national drug use norms established by the Youth Risk Behavior Surveillance Survey. Overall participants had fairly negative attitudes toward drugs. Sixty percent of the sample reported that they were committed to a drug-free life, 74% had made a decision to stay away from marijuana, 79% reported making a decision not to smoke cigarettes, and 71% reported they would not get drunk in the next year. Females were more likely to stay away from marijuana than males. In this current study there is cause for alarm; participants reported higher percentages of ever smoking cigarettes and marijuana than the Youth Risk Behavior Surveillance Survey. This study shows there is a need to provide substance abuse prevention programs for African American adolescents. Limitations and future directions are also discussed. 相似文献