The Effect of Migration on a Similarity Index

Fewster and Buckland (2001 Fewster , R. M. , Buckland , S. T. ( 2001 ). Similarity indices for spatial ecological data . Biometrics 57 : 495 – 501 . [Google Scholar]) defined a similarity index between two communities by allowing changes between sites to reduce the influence of local discrepancies. The similarity index of Fewster and Buckland is calculated to attain the maximum similarity between two communities in the presence of migration. Instead of maximizing similarity, we propose random migration to measure the similarity of two communities with two types of stochastic migration. The similarity values based on the proposed methods can be treated as the expected value of similarity under migration. We use computer simulation and empirical examples to demonstrate our approach.     

Young Women's Use of a Vaginal Microbicide Surrogate: The Role of Individual and Contextual Factors in Acceptability and Sexual Pleasure

Currently in clinical trials, microbicides have historically been promoted as a woman-controlled (although more recently woman initiated) method of sexually transmitted infection (STI) prevention. The contradicition that exists in this rationale is that women's bodies, specifically the genitals, have been constructed as a negotiated space within sexual interactions. This study qualitatively explored the factors influencing 40 young women's use of a vaginal moisturizer (VM), utilized as a microbicide surrogate. The results indicated that use of the VM was dependent upon product characteristics (i.e., the lubricating qualities affect on sexual pleasure, timing of insertion), individual factors (i.e., reproductive health goals, experiences with side effects of existing contraceptive methods), and contextual factors (i.e., social norms). An understanding of these bodily and social issues may be beneficial in designing targeted educational campaigns and effective instructional materials as well as in facilitating positive dialogue around women's bodies and their sexuality.     

The ‘recidivist tongue’: embracing an embodied language of trauma

This article analyses selected excerpts from the writing of Antjie Krog and Yvonne Vera in order to theorise strategies for overcoming the disjuncture between the mind and the body that tends to result from violence. Both authors repeatedly return to the bodies of their characters and they insist that psychic and physical pain and trauma reside in the bodies of survivors as much as in their psyches. Acknowledging this corporeal reality of violence circumvents any opportunity to deny the totality of the impact that violence has on the lives of survivors. This has implications for survivors as well as for those who read or hear about violence. By developing an embodied language of violence and trauma, these authors offer new and more comprehensive ways of dealing with traumatic violations. When survivors reclaim their bodies, they are also able to utilise their bodies’ capacity for healing and comfort. When readers, and society at large, are unable to deny the harm that violence does to bodies, they are compelled to recognise the reality of survivors’ suffering. The article illustrates that the body can speak and that we ignore its voice at our peril.     

Evaluation of a Seven State Criminal History Screening Pilot Program for Long-Term Care Workers

This article summarizes results from an evaluation of a federally sponsored criminal history screening (CHS) pilot program to improve screening for workers in long-term care settings. The evaluation addressed eight key issues specified through enabling legislation, including efficiency, costs, and outcomes of screening procedures. Of the 204,339 completed screenings, 3.7% were disqualified due to criminal history, and 18.8% were withdrawn prior to completion for reasons that may include relevant criminal history. Lessons learned from the pilot program experiences may inform a new national background check demonstration program.     

Postamenorrheic versus postpartum strategies of contraception

The postpartum strategy of inserting an intra-uterine device shortly after a birth essentially eliminates the risk of conceiving again before starting contraception but maximizes the overlap between wearing time and postpartum anovulation when protection is not needed. In contrast, the postamenorrheic strategy of delaying insertion until right after the woman’s first menses all but removes overlap with anovulation but allows a chance of conception before start of contraception because sometimes an ovulation precedes the first menstruation. In this paper some algebra is developed and utilized to see which of the two strategies delays the next conception longer. The postamenorrheic strategy is found to have a slight advantage over the postpartum approach for a wide range of fecundability levels, lengths of anovulation, and rates of continuation of IUD. However this slight advantage presupposes that insertions are taking place at the exact time prescribed. When a progressively larger factor of procrastination is introduced, the advantage rapidly passes from the postamenorrheic to the postpartum approach. An explanation for the differing sensitivity of the two insertion strategies with respect to procrastination is derived from the results of an earlier analysis.