Biomedical subjects

Peter Adams

Publications and source records attributed to Peter Adams.

4 recordsLinked to original sources

PubMed2003

Problematising depression: young people, mental health and suicidal behaviours.

The published literature provides strong evidence for connections between mental health issues, such as depression, and suicidal behaviours. However, in spite of this, no investigations to date have explored young people's perceptions of the interconnections between depression, and suicidal behaviours. This article presents discussive analyses of discussions of the contributions of depression to their suicidal behaviours of young people in New Zealand. Two dominant discourses of depression emerged: a medicalised discourse, and a moral discourse. The medicalised discourse was accessible to the majority of participants, and constructed depression as a disease. This discourse prioritised the voices of health professionals and suggested that depression was difficult to resist. The moral discourse was an alternative to the medicalised discourse, and constructed young people who experienced depression and suicidal behaviours as failures. Both discourses were informed by a mechanistic cause-and-effect relationship between depression and suicidal behaviours: attempting suicide was seen as an inevitable outcome of experiencing depression, and suicidal behaviours were inevitably undertaken by young people who were depressed. Resistance to either of these dominant discourses was problematic, and was best articulated during discussions of the stigma associated with mental ill-health and depression.

Adult↗

PubMed2002

Presentations by youth to Auckland emergency departments following a suicide attempt.

The objective of this study was to describe the population of European youth (15-24 years) presenting to emergency departments (EDs) at one of the three Auckland public hospitals following attempted suicide; and to identify factors associated with presentations to EDs by these youth. A 1-year medical record review was undertaken. A total of 212 presentations (196 individuals) occurred during the surveillance; alcohol was present for 29%. Attempts involving alcohol were more likely to occur at weekends (P < 0.01); involve cutting and piercing (P < 0.05); be undertaken by employed people (P < 0.05), and be undertaken by those not residing with family (P < 0.01). Two groups of particular concern were identified: those who involved alcohol in their attempt; and those who represented during the study period following multiple suicide attempts. These findings have implications for immediate care within an ED setting, and long-term follow-up healthcare options for distressed young people.

Adolescent↗

PubMed2002

A simulated annealing algorithm for finding consensus sequences.

MOTIVATION: A consensus sequence for a family of related sequences is, as the name suggests, a sequence that captures the features common to most members of the family. Consensus sequences are important in various DNA sequencing applications and are a convenient way to characterize a family of molecules. RESULTS: This paper describes a new algorithm for finding a consensus sequence, using the popular optimization method known as simulated annealing. Unlike the conventional approach of finding a consensus sequence by first forming a multiple sequence alignment, this algorithm searches for a sequence that minimises the sum of pairwise distances to each of the input sequences. The resulting consensus sequence can then be used to induce a multiple sequence alignment. The time required by the algorithm scales linearly with the number of input sequences and quadratically with the length of the consensus sequence. We present results demonstrating the high quality of the consensus sequences and alignments produced by the new algorithm. For comparison, we also present similar results obtained using ClustalW. The new algorithm outperforms ClustalW in many cases.

Algorithms↗

PubMed2002

Resiliency in the victim-offender cycle in male sexual abuse.

The prevalence of childhood sexual abuse in child molesters is considerably higher than that in the general population. This finding had led to the "victim-offender cycle" being popularized as an explanation for sexual offending. However, not all child molesters were victimized as children, so it is of interest to examine the factors that contribute to the victim-offender cycle or, conversely, resiliency. This study examined the "moderating factors" that may prevent a male victim of sexual abuse from entering the victim-offender cycle. Two groups were interviewed as part of the study: a "resilient group" (n = 47) and a victim-offender group (n = 41). After correction for age and education level, the resilient group were less likely to have fantasized and masturbated about the abuse, less likely to report deriving pleasure from the abuse, more likely to have had frequent social contact with adolescent peers and to have had more family and nonfamily support during childhood. The findings support the need for multifactorial models of resiliency, the victim-offender cycle, and sexual offending. Recommendations about the prevention of the victim-offender cycle are made, including the need for a thorough systemic assessment of all male victims of sexual abuse and the involvement of their family system in counseling.

Adult↗