The Effects of Diversity on Small Work Group Processes and Performance

Diversity is an increasingly important factor inorganizational life as organizations worldwide becomemore diverse in terms of the gender, race, ethnicity,age, national origin, and other personal characteristics of their members. The exact impact ofwithin-group diversity on small group processes andperformance is unclear. Sometimes the effect ofdiversity seems positive, at other times negative, andin other situations, there seems to be no effect at all.In this article, we suggest that these types of findingsmight be explained by using agroup-development model to examine theimpact of diversity on group processes and performance. Our modeluses concepts from Jackson et al.'s (1995), Milliken andMartins' (1996), and other models, as well as our ownconcepts, to show how diversity affects group development and performance. Among the conceptsincluded in the model are readily detectable personalattributes, underlying personal attributes, cognitiveparadigm dissimilarity, cognitive costs and rewards, diversity management skills, group behavioralintegration, and cognitive performance resources. In thepages that follow, we will explain each of thecomponents of the model and suggest specific hypotheses generated from the model.     

Transnational youth transitions: becoming adults between Vancouver and Hong Kong

In the context of the academic interest shown in the enduring transnationalism of contemporary migrants and in the modes of transitions to adulthood in different global settings, in this article we examine the transnational lives of adolescents moving between Vancouver (Canada) and Hong Kong. While there is a lot of literature on the parents' political and economic calculations, there is very little on how adolescents in these situations articulate their geographical sensibilities. We draw on three periods of fieldwork undertaken in 2002, 2008 and 2010 during which we employed a transnational methodology to interview young people in Vancouver and Hong Kong. We argue that becoming an adult involves a process in which, in their discussions about the geographical and emotional distance between themselves and their families, young people articulate their own complex emotions towards specific places in their transnational social field. Their families sporadically interrupt the adolescents' otherwise independent lives with fragmented modes of supervision. By examining the complex intentions and emotions behind circular migration from the perspective of transnational youth in a community of split families, we advance the discussion on transnational geographies, particularly of the family in the context of a flexible global economy.     

Improving quality of life in old age: the role of regular physical activity

Physical activity in old age has been shown to produce considerable physiological, psychological and social benefits. However, many older adults take very little exercise. Lack of facilities or meaningful role models together with social and cultural expectations concerning the appropriateness of physical activity for older adults have been cited as reasons for lack of involvement. The development of intergenerational programs is suggested as a potential means of increasing the proportion of older individuals who participate in regular physical exercise.     

Male age and progeny

Testicular aging affects simultaneously the individual and his lineage. In the individual, changes in the vascular and endocrine systems, in the blood-testis barrier and in Sertoli cells, because of increasing age, lead to a decrease in the number of spermatozoa and an alteration in their form and motility. Gamete quality is also low in very young men. These changes lead to a gradual decrease of fertility. In the progeny, paternal aging is responsible for new dominant autosomic mutations which themselves cause different malformations such as achondroplasia, Apert's or Recklinghausen disease, Marfan's syndrome, and, perhaps, certain chromosome X-linked recessive mutations such as Duchenne's myopathy or hemophilia A. Moreover, in mouse, rat and man, a very young age and paternal aging seem to be responsible for a gradual lowering in the level of cognitive functions in the progeny. Thus, the curve corresponding to this phenomenon presents an inverted U-shape, of which the top corresponds in man to about 30 years of paternal age. Maternal age does not appear to play a part in this event. These results pose the problem of the optimum age for fatherhood.     

Long-term low-dose dehydroepiandrosterone replacement therapy in aging males with partial androgen deficiency

Dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS) age-related withdrawal is very likely to be involved in the aging process and the onset of age-related diseases, giving rise to the question of whether preventing or compensating the decline of these steroids may have endocrine and clinical benefits. The aim of the present trial was to evaluate the endocrine, neuroendocrine and clinical consequences of a long-term (1 year), low-dose (25?mg/day) replacement therapy in a group of aging men who presented the clinical characteristics of partial androgen deficiency (PADAM). Circulating DHEA, DHEAS, androstenedione, total testosterone and free testosterone, dihydrotestosterone (DHT), progesterone, 17-hydroxyprogesterone, allopregnanolone, estrone, estradiol, sex hormone binding globulin (SHBG), cortisol, follicle stimulating hormone (FSH), luteinizing hormone (LH), growth hormone (GH) and insulin-like growth factor 1 (IGF-1) levels were evaluated monthly to assess the endocrine effects of the therapy, while β-endorphin values were used as a marker of the neuroendocrine effects. A Kupperman questionnaire was performed to evaluate the subjective symptoms before and after treatment.

The results showed a great modification of the endocrine profile; with the exception of cortisol levels, which remained unchanged, DHEA, DHEAS, androstenedione, total and free testosterone, DHT, progesterone, 17-hydroxyprogesterone, estrone, estradiol, GH, IGF-1 and β-endorphin levels increased significantly with respect to baseline values, while FSH, LH and SHBG levels showed a significant decrease. The Kupperman score indicated a progressive improvement in mood, fatigue and joint pain.

In conclusion, the present study demonstrates that 25?mg/day of DHEA is able to cause significant changes in the hormonal profile and clinical symptoms and can counteract the age-related decline of endocrine and neuroendocrine functions. Restoring DHEA levels to young adult values seems to benefit the age-related decline in physiological functions but, however promising, placebo-controlled trials are required to confirm these preliminary results.     

Serum levels of inhibin B in men of different age groups

The decline of testosterone levels in aging men is well documented. However, it is unclear to what extent the Sertoli cell marker inhibin B changes during aging. Herein we report on the determination of serum levels of inhibin B, follicle stimulating hormone (FSH), luteinizing hormone (LH) and testosterone in 906 patients from 16 to 89 years of age, presenting to our department for different complaints. There was a weak but significant correlation of the levels of inhibin B with age (r = 0.064, p < 0.05). A significant negative correlation of FSH and inhibin B was documented in all age groups (r = -0.423, p < 0.01). Also, the LH levels increased significantly with low inhibin B levels (r = -0.289, p < 0.01). Testosterone levels showed no significant correlation with inhibin B. We conclude from our study that Sertoli cell function as documented by serum levels of inhibin B is stable throughout life. In addition, the ongoing correlation of FSH and inhibin levels also indicates no significant decline of Sertoli cell function in the aging male.     

Deep Roles: Twelve Primordial Roles of Mind and Organization

The thesis in this paper is that there are 12archetypal roles in groups and organizations. Thesedeep roles have their origin in the rolesof the essential family — father, mother, son, anddaughter. In groups and organizations, each of theseimages of family roles will — through the basicdefense mechanisms of splitting and projection —be polarized into a good and bad part: The father as Godor devil, the mother as queen or witch, the son as crownprince or black sheep, and the daughter as princess orwhore. In addition to these eight primary deep roles,there come two secondary ones: the helpers Shaman and Slave whose function are to help the familysurvive spiritually and materially, respectively. Thetwo last deep roles are of a transcendental nature: thehero (winner) and the clown (loser), i.e., the one who has won a good family role, and the onewho has lost it — or never gained it. These 12deep roles are well known from such cultural artifactsas fairy tales and mythology. In groups andorganizations, deep roles are attended with power andinterest. Those who are attributed a deep role in theirorganization will have a similar symbolic power ascharacters in fairy tales and mythology.     

Group Identity and Individuality in Times of Crisis: Psychoanalytic Reflections on Social Psychological Knowledge

This paper locates contemporary socialpsychological conceptions of group identity in thecontext of crises in forms of knowledge, and in the waysresearchers have responded to crises in disciplinaryidentity. Forms of group social psychology that emergedwithin the European tradition of research promised afully social account of human activity and experience,but recent trends of research in the discipline, even within group identity frameworks, havereturned to the individual as a focus of study. The workof Bion is used to draw attention to the ways in whichcrises in group identity often provoke particular varieties of response which serve to defend thegroup, varieties of response which look to theindividual as an escape from the threat or as a solutionto the problem.     

Health-related quality of life in old age: preliminary report on the male perspective

Health-related quality of life is a key element of successful aging. With life expectancy increasing, postmenopausal estrogen/gestagen replacement therapy has been under discussion for some time with the aim of achieving a higher quality of life in old age. For a long time, the relevance of hormonal aging was only discussed with reference to women; however, more recent work deals with concepts that affect both sexes. According to recent studies, numerous symptoms and complaints which may impair quality of life, can be attributed to hormonal changes in old age in both women and men. The majority of age-related complaints, such as a decline in physical performance, decreased sexual activity and a deterioration of general well-being, are strongly reminiscent of the symptoms of classical pituitary disorders in adulthood. Since the early 1990s, scientific studies have also been investigating the influence of hormone 'replacement' in elderly men, using, for example, growth hormones. However, until now there has been no suitable measure for assessing the quality of life specifically in elderly men. In a research project aimed at developing a questionnaire (the VITA? questionnaire), roughly equal numbers of elderly men and women were asked about their subjective health and quality of life. It was found that men assessed their health-related quality of life very positively in a number of different dimensions of the questionnaire. In the present article the individual aspects of the quality of life of men are described and examples of gender-related differences are presented and discussed.     

Three Social Dilemmas of Workforce Diversity in Organizations: A Social Identity Perspective

This paper explores the relationship among threesocial dilemmas faced by organizations wishing to attainand maintain workforce diversity: the dilemmas oforganizational participation, managerial participation, and individual participation. Functional andsocial category diversity offer benefits fororganizations (creativity, adaptation and innovation,and access to external networks), but there are costswhich deter organizations from pursuing thesebenefits. The costs associated with organizationalparticipation in diversity initiatives arise becausemanagers and their employees perceive organizationalconflicts and organize their interactions along socialidentity lines, so that temporal traps and collectivefences surround diversity. Resolving the subordinatedilemmas of managerial and individual participation provides the key to resolving the dilemma oforganizational participation. Social identity theory isused to understand the dilemmas and to develop possibleresolutions, which should make the benefits of diversity more immediately accessible toorganizations and society.