Facets of dispositional mindfulness versus sources of social support predicting college students' psychological adjustment.

Objective: This study examined the relative contribution of five dispositional mindfulness (DM) facets and two aspects of social support along with sex in predicting psychological adjustment. Participants: Three hundred fifty-three undergraduates (72% female; M = 18.82 years) participated with data collected from September 2014 through March 2016. Methods: Self-report measures of DM, social support, perceived stress, and emotional well-being were completed. Results: Sex and higher scores on specific mindfulness facets (ie, nonreactivity, nonjudging) predicted lower stress and greater emotional well-being. Higher family support predicted lower stress, whereas friend support predicted greater emotional well-being. The mindfulness facets were stronger predictors of adjustment than the social support domains. Females reported higher perceived stress and lower emotional well-being than males, and males scored significantly higher on total mindfulness, nonjudging, and nonreactivity. Conclusions: Results have implications for mindfulness-based interventions with college students such that focusing on the nonjudging and nonreactivity facets may enhance effectiveness.

High-density single-nucleotide polymorphism maps of the human genome.

Here we report a large, extensively characterized set of single-nucleotide polymorphisms (SNPs) covering the human genome. We determined the allele frequencies of 55,018 SNPs in African Americans, Asians (Japanese-Chinese), and European Americans as part of The SNP Consortium's Allele Frequency Project. A subset of 8333 SNPs was also characterized in Koreans. Because these SNPs were ascertained in the same way, the data set is particularly useful for modeling. Our results document that much genetic variation is shared among populations. For autosomes, some 44% of these SNPs have a minor allele frequency > or =10% in each population, and the average allele frequency differences between populations with different continental origins are less than 19%. However, the several percentage point allele frequency differences among the closely related Korean, Japanese, and Chinese populations suggest caution in using mixtures of well-established populations for case-control genetic studies of complex traits. We estimate that approximately 7% of these SNPs are private SNPs with minor allele frequencies <1%. A useful set of characterized SNPs with large allele frequency differences between populations (>60%) can be used for admixture studies. High-density maps of high-quality, characterized SNPs produced by this project are freely available.