The influence of Viking-Age migrants to the British Isles is obvious in archaeological and place-names evidence, but their demographic impact has been unclear. Autosomal genetic analyses support Norse Viking contributions to parts of Britain, but show no signal corresponding to the Danelaw, the region under Scandinavian administrative control from the ninth to eleventh centuries. Y-chromosome haplogroup R1a1 has been considered as a possible marker for Viking migrations because of its high frequency in peninsular Scandinavia (Norway and Sweden). Here we select ten Y-SNPs to discriminate informatively among hg R1a1 sub-haplogroups in Europe, analyse these in 619 hg R1a1 Y chromosomes including 163 from the British Isles, and also type 23 short-tandem repeats (Y-STRs) to assess internal diversity. We find three specifically Western-European sub-haplogroups, two of which predominate in Norway and Sweden, and are also found in Britain; star-like features in the STR networks of these lineages indicate histories of expansion. We ask whether geographical distributions of hg R1a1 overall, and of the two sub-lineages in particular, correlate with regions of Scandinavian influence within Britain. Neither shows any frequency difference between regions that have higher (≥10%) or lower autosomal contributions from Norway and Sweden, but both are significantly overrepresented in the region corresponding to the Danelaw. These differences between autosomal and Y-chromosomal histories suggest either male-specific contribution, or the influence of patrilocality. Comparison of modern DNA with recently available ancient DNA data supports the interpretation that two sub-lineages of hg R1a1 spread with the Vikings from peninsular Scandinavia.
Newly released data from the U.S. Department of Defense shows military spouse suicide to be an imminent concern for the U.S. military. Currently, there is an absence of research in the counseling profession related to suicide prevention and intervention for this population. Therefore, this qualitative phenomenological study explored the perceptions of military spouses regarding suicide within their community. Ten military spouses were interviewed twice and were asked to provide written responses to follow-up questions. Six main themes emerged: (a) loss of control, (b) loss of identity, (c) fear of seeking mental health services, (d) difficulty accessing mental health services, (e) the military spouse community as a protective factor, and (f) desire for better communication about available mental health resources. Implications for practicing counselors and military leadership in helping to prevent military spouse suicide as well as recommendations for future research regarding ways to support military spouse mental health and prevent suicide in this community are included.
Do you get the most from the expertise of your school business leader? Hayley Dunn looks at how schools can maximise the impact of the business leader position
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