The multidimensional and dynamic nature of ethnic identity(1)

The present study explores the extent to which ethnic identity is multidimensional and susceptible to changes in social context. Two groups of Welsh adolescents were asked to write an essay either related or unrelated to English-Welsh conflicts. They were then administered a multidimensional scaling questionnaire which involved having them make similarity judgments between various stimulus labels including certain Welsh and English social groups. It was found that both groups of subjects conceptualized the stimulus labels multidimensionally in terms of a Welsh-English cultural dimension and a radical separatist-conservative integrationist dimension. In addition, it was found that increasing the salience of intergroup conflict led Welshmen to closer affiliation with ingroups and an accentuated polarization of outgroups on the former dimension.     

SOCIAL IDENTITY IN PUERTO RICO*

This study examines the social identity of 384 high school students from four age levels (10, 12, 15 and 17 years-old) in Puerto Rico. This complex society represents an interesting context because of the potential relevance of a number of dimensions for identity including language, cultural heritage, economic status, religion and political beliefs. An important methodological refinement is introduced in order to permit simultaneous examination of these various dimensions in terms of Puerto Rican identity. Three major dimensions of the students' social identity emerged from multidimensional scaling analyses and these were seen to contrast with previous research on ethnic identity in Canada, the United States and Wales.     

The science, fiction, and reality of embryo cloning.

Although many scientists view cloning as a useful procedure for scientific research into early embryo development -- one that cannot currently be used to produce multiple copies of humans -- the popular literature has led some individuals to view it as sinister. To address the concerns of the public, various conceptions of cloning are distinguished and their basis in fact analyzed. The possible uses, benefits, and detriments of both embryo splitting and nuclear transplantation are explained. Once the nature and purposes of cloning are understood, and the distinctive ethical dilemmas created by embryo splitting and nuclear transplantation are sorted out, these procedures should be clinically implemented to assist in vitro fertilization treatment for those who are infertile and to further other therapeutic and investigational efforts in medicine.     

Suicide without explicit precursors: a state of secret despair?

Although it is usually assumed that all those who commit suicide give some prior indication of their intention to take their own life, there is growing evidence that a small but significant proportion of suicides occur without any clear, explicit indicators. It is proposed that these suicides share similar pathways to other suicides but that the despair involved is not expressed so clearly, often being kept secret. In order to identify such suicides and potential suicides it is helpful to have an indicator of the dominant sub‐sets of constituents that are precursors to suicide. A 14‐item Suicide Precursors Scale (SPS) was therefore developed. This was applied to 128 cases of suicide that occurred between January 1997 and December 2000 in Stockport (South Manchester, UK). A very high alpha coefficient of 0.98 supported the reliability and homogeneity of the SPS. A Multi‐Dimensional Scaling (MDS) analysis of the SPS revealed three prototypical sub‐sets of expressions of suicidal actions—illness, life circumstances, and depressive history. These are offered as coherent themes in the life of potential suicides, which may be of assistance both in determining whether an equivocal death is suicide or not, and in alerting caring agencies to the potential for suicide even when the despair is kept secret. Copyright © 2004 John Wiley & Sons, Ltd.     

Behavioral and genetic characterization of habituation using Caenorhabditis elegans

This review surveys the literature that investigates the behavioral characterization and cellular and molecular mechanisms of habituation using the model organism Caenorhabditis elegans. In 1990, C. elegans was first observed to show habituation to a non-localized mechanical tap. The parameters that govern this behavioral plasticity in C. elegans were subsequently characterized, which lead to the important hypothesis that habituation is mediated by multiple mechanisms. Many tools are available to C. elegans researchers that allow for relatively easy genetic manipulation. This has lead to a number of recent genetic studies that have begun to identify key genes and molecules that play a role in the mechanisms of habituation. Some of these genes include a vesicular glutamate transporter, a glutamate receptor subunit, a dopamine receptor and downstream intracellular signaling molecules, such as G proteins and kinases. Some of these genes only affect certain parameters of habituation, but not others supporting the hypothesis that multiple mechanisms mediate habituation. The field of research has also led to the dissection of different phases of memory (short-term vs. long-term memory for habituation), which are triggered by different training paradigms. The differences in mechanism between these various forms of memory are also beginning to be revealed.     

Reliability of the Child and Adolescent Needs and Strengths-Mental Health (CANS-MH) Scale

We examined the interrater reliability of the Child and Adolescent Needs and Strengths-Mental Health (CANS-MH) scale among researchers and between researchers and clinicians. All children presenting to a treatment facility for either protective or mental health needs were eligible to be included in the study. As part of standard assessment procedure, all children entering the facility were described by caseworkers using the CANS-MH. A random sample of 60 cases was selected and researchers made retrospective assessments using the CANS-MH based on chart review. Results of the interrater reliability support previous findings that the CANS-MH is a reliable measure of clinical and psychosocial needs and strengths. Results also suggest that ratings on the CANS-MH based on medical record abstraction by researchers relate to ratings performed by clinical staff, demonstrating the clinical and research utility of the CANS-MH. The CANS-MH can be used reliably to assess the type and severity of problem presentation, risk behaviors, functioning, care intensity and organization, caregiver capacity and strengths among children with protective and mental health needs. In addition, items of the CANS-MH appear to be reliable supporting the use of these items individually. Findings are relevant to the ongoing delivery of clinical services, monitoring of quality assurance, and outcomes.     

Becoming a teller of tales: associations between children's fictional narratives and parent-child reminiscence narratives

Previous research has revealed a connection between the contributions parents make while reminiscing and their children’s narratives for personally experienced events. The current research expands the literature by focusing on the connection between parental reminiscing and children’s production of fictional narratives. After 4- to 9-year-olds and their parents reminisced about past shared events, the children (with an experimenter) produced narratives based on wordless picture books. The results revealed that the overall quality of the fictional narratives was correlated with parents’ provision statements that emphasized orientation and evaluation in the reminiscence narrative. For younger children, correlations held for reminiscence narratives about recent events. For older children, correlations held for reminiscence narratives about events from the distant past. The results are consistent with the suggestion that children learn general storytelling skills from adult models.     

Selecting for Creativity and Innovation: The relationship between the innovation potential indicator and the team selection inventory

This article describes a study carried out to investigate the relationship between individual scores on the Innovation Potential Indicator (IPI), a measure of individual innovation behaviors for use in personnel selection, and the Team Selection Inventory (TSI), an individual‐level measure of a person's preferred team‐working climate for innovation. Results from a sample of 142 Greek employees found that the Motivation to Change scale of the IPI positively correlated with all of the TSI scales, and that the Adaptation scale positively correlated with the TSI's Vision and Task Orientation scales. Findings are discussed.