Efficient simulation of tail probabilities in a queueing model with heterogeneous servers

This paper considers a multi-server queue with Markov-modulated Poisson input and server-dependent phase-type service times. We develop an efficient rare-event simulation technique to estimate the probability that the number of customers in this system reaches a high value. Relying on explicit bounds on the probability under consideration as well as the associated likelihood ratio, we succeed in proving that the proposed estimator is of bounded relative error. Simulation experiments illustrate the significant speed-up that can be achieved by the proposed algorithm.     

Subjective and Occupational Well-Being in a Sample of Mexican Workers

This article examines the well-being of workers, observing that subjective and occupational well-being are interrelated but independent dimensions and analyzing their interaction with their modulating factors. Specifically, the relationships between well-being and personal value structures are examined, hypothesizing that congruence between personal and socially predominant values improves the well-being of workers. The influence of various occupational and personal factors is also analyzed. We studied 209 workers of a multinational company in Mexico using different standardized questionnaires. The results demonstrate that subjective and occupational well-being are related but are independent variables influenced by differentiated variables. Specifically, the occupational wellbeing of workers is influenced by the nature of their work, whereas subjective well-being is affected by their social values and level of education. We present a model for the interaction of these variables and their consequences with the intention of the worker to stay with or leave the company. We discuss some practical issues raised by the study and make recommendations for future.     

Ein theoretisches Modell zur Integration von Arbeitsmigranten in Organisationen

This article in the journal “Gruppe. Organisation. Interaktion. (GIO)” portraits a model of organizational acculturation that describes the emergence of acculturative and socialization stressors upon the encounter of different cultures when migrant workers enter organizations, while taking into account the perspective of persons already employed in those organizations. This model combines approaches of acculturation and socialization research. Intrapersonal (cyclic interplay of information, uncertainty reduction and learning) and interpersonal (voice, participation, empowerment and social support) coping-processes lead to successful adaptation of work migrants. In turn, successful adaptation has positive effects on further work-related outcomes. The model takes account of the fact that due to the additional challenge of having to adapt to a new culture, organizational socialization of work migrants proceeds in a more complex fashion. The model provides starting points for future research and practical applications.     

Career Outcomes Data From Social Media: Examining Quality in Current Practices

Social media websites contain information that can be used to assess career outcomes. Yet, questions remain about the quality of this data source. This study examined social media data collected from a large sample of recent college graduates (N = 3,094), considering how well those data represented the broader population of graduates and to what extent social media data matched survey responses on 5 employment variables. Results indicated that indiscriminately using social media data can lead to biased inferences about career outcomes. Specifically, social media data matched survey data in just 67% to 76% of comparisons. Despite these limitations, findings also revealed strategies to improve agreement between data sources, leading to more trustworthy inferences about career outcomes from social media. Results indicate a need to heighten practitioner awareness of data quality issues related to career outcomes data sources. A framework for examining data quality is offered, with suggested directions for future research.     

Women With Hypoactive Sexual Desire Disorder Versus Sexual Interest/Arousal Disorder: An Empirical Test of Raising the Bar

In 2013, the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) was published with a major revision to the sexual dysfunction categories, and the diagnosis of female hypoactive sexual desire disorder (HSDD) was replaced with female sexual interest/arousal disorder (SIAD). Since being introduced, concern has been expressed that SIAD inappropriately “raises the bar” for diagnosis. To address these concerns, we sought to evaluate the number of women with a diagnosis of HSDD who also met criteria for SIAD. In a sample of 151 women, we found that 73.5% of women with a diagnosis of HSDD met criteria for SIAD. The two groups were compared on the Sexual Interest/Desire Inventory, and women who met criteria for both HSDD and SIAD consistently scored lower on sexual desire frequency and satisfaction, satisfaction with sex, receptivity, positive sexual thoughts, reactions to erotica, arousal frequency, ease, continuation, and orgasm ease/achievement, and higher on distress. In addition, women meeting criteria for HSDD only tended to have mild symptoms across the six SIAD criteria compared to those meeting criteria for both HSDD and SIAD. These findings suggest that the SIAD criteria does not unduly raise the bar for diagnosis.     

Reviews

Book reviewed in this article: Relationship Counselling For Children, Young People and Families Geldard, K. Geldard, D. MENDS Counsellor Manual: A Structured Approach to Assisting Men in Relationship Crisis: Pershouse, Owen C.     

Sex-Related Alcohol Expectancies Among African American Women Attending an Urban STI Clinic

African American women are disproportionately affected by human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) and sexually transmitted infections (STIs). Alcohol use is a significant risk factor for HIV/STI acquisition. Sex-related alcohol expectancies (SRAEs) may partially account for alcohol-related risky sexual behaviors. Using qualitative interviews we explored the link between alcohol use and risky sex among 20 African American women attending an STI clinic who had consumed four or more alcoholic drinks per drinking day (binge drinking) and/or reported vaginal or anal sex while under the influence of alcohol. Four SRAEs emerged, which we named drink for sexual desire, drink for sexual power, drink for sexual excuse, and drink for anal sex. While the desire SRAE has been documented, this study identified three additional SRAEs not currently assessed by expectancy questionnaires. These SRAEs may contribute to high-risk sex when under the influence of alcohol and suggests the importance of developing integrated alcohol–sexual risk reduction interventions for high-risk women.