Characteristic properties of FPTP systems

In this article, we model FPTP systems as social preference rules and give two characterizations. We show that a social preference rule is an FPTP system if, and only if, it satisfies the axioms of subset consistency, district consistency, subset cancellation, and district cancellation. The second characterization consists of the axioms of subset consistency, subset anonymity, neutrality, topsonlyness, Pareto optimality, district consistency and district cancellation. The characterizations give us an opportunity to compare the characteristic properties of FPTP systems to the characteristic properties that we found for list systems of proportional representation (list PR systems) in Hout et al. (Social Choice and Welfare, 27:459–475, 2006), where we modelled those systems also as social preference rules. We find that consistency and anonymity distinguish list PR systems from FPTP systems. On the other hand, it is district cancellation that distinguishes FPTP systems from list PR systems.     

Who Believes in the Storybook Image of the Scientist?

Do lay people and scientists themselves recognize that scientists are human and therefore prone to human fallibilities such as error, bias, and even dishonesty? In a series of three experimental studies and one correlational study (total N = 3,278) we found that the “storybook image of the scientist” is pervasive: American lay people and scientists from over 60 countries attributed considerably more objectivity, rationality, open-mindedness, intelligence, integrity, and communality to scientists than to other highly-educated people. Moreover, scientists perceived even larger differences than lay people did. Some groups of scientists also differentiated between different categories of scientists: established scientists attributed higher levels of the scientific traits to established scientists than to early-career scientists and Ph.D. students, and higher levels to Ph.D. students than to early-career scientists. Female scientists attributed considerably higher levels of the scientific traits to female scientists than to male scientists. A strong belief in the storybook image and the (human) tendency to attribute higher levels of desirable traits to people in one’s own group than to people in other groups may decrease scientists’ willingness to adopt recently proposed practices to reduce error, bias and dishonesty in science.     

Impaired Metacognitive Capacities in Individuals with Problem Gambling

Impaired insight into behavior may be one of the clinical characteristics of pathological gambling. In the present study, we tested whether the capacity to evaluate accurately the quality of one’s own decisions during a non-gambling task was impaired in problem gamblers. Twenty-five problem gamblers and 25 matched healthy participants performed an artificial grammar-learning paradigm, in which the quality of choice remains uncertain throughout the task. After each trial of this task, participants had to indicate how confident they were in the grammaticality judgements using a scale ranging from 1 (low confidence) to 7 (high confidence). Results showed that (i), problem gamblers’ performance on the grammaticality test was lower than controls’; (ii) there was a significant correlation between grammaticality judgments and confidence for control participants, which indicates metacognitive insight and the presence of conscious knowledge; (iii) this correlation was not significant in problem gamblers, which suggests a disconnection between performance and confidence in this group. These findings suggest that problem gamblers are impaired in their metacognitive abilities on a non-gambling task, which suggests that compulsive gambling is associated with poor insight as a general factor. Clinical interventions tailored to improve metacognition in gambling could be a fruitful avenue of research in order to prevent pathological gambling.     

Discussion: Why do we test multiple traits in genetic association studies

Zhu and Zhang [Zhu, W., &; Zhang, H. (2009). Why do we test multiple traits in genetic association studies. Journal of the Korean Statistical Society, 38(1), 1–10] publish a paper “Why Do We Test Multiple Traits in Genetic Association Studies?” in this issue. The authors used linear structural equations and acyclic graph as tools to explore the performance of testing multiple traits simultaneously by large-scale simulations for various genetic models. The methods, conclusions and results are of great interest in quantitative genetics. Diseases are caused by dynamic interaction among many genes and many environmental exposures through regulation and metabolism. In the past several decades, researchers have primarily focused on (1) the role of individual genetic variation in determining the diseases and (2) one single trait at a time. Little attention has been paid to determining how the genetic variations and environmental perturbation are integrated into networks which act together to dynamically alter regulations and metabolism leading to the emergence of complex phenotypes and diseases. Pending conceptual and statistical challenges are (1) how to identify networks involved in molecular phenotypes and endpoint clinical phenotypes under perturbation of environments and (2) how to connect DNA variation to disease outcomes through gene regulations and cellular intermediate traits. Structural equations and graphical models of multiple quantitative traits provide a general framework for developing novel analytic strategies for identifying the path from genomic information coupled with the environmental exposures, through gene expressions and other intermediate traits, to the clinical endpoints of complex diseases, to meet the above conceptual and statistical challenges. In this discussion, we use structural equations to analyze multiple intermediate traits of ankylosing spondylitis (AS) as a real example to further demonstrate the importance of network approach to genetic studies of complex traits.     

The next stage of managed care.

Since the turn of the century, we have gone from medicine as a cottage industry, based largely on barter, to the complex entity it is today. What we will see in the coming decade, if not sooner is the emergence of the next level of managed care. As managed care matures, contradictions in the health care system that we have not been able to resolve will be addressed, as well as other value-related issues. The ability to deliver value and then to monitor outcomes will be the nut to crack. The next big movement will be to hone in on outcomes and measurement. This will be the path to increasing the inherent value of the medical care system. This will go hana in hand with accountability, which is where physician-sponsored networks (PSNs) will be an indispensable tool. Centered as they are around accountability and responsibility, PSNs will be a natural starting point for developing the protocols to produce and collect this data. The standardization of care, anchored upon medical evidence, is the objective.     

“Spoken Word” and “Poetry Slams”: the voice of youth today

In this article the authors discuss a relatively new cultural expression that has become popular in high schools across the United States: Spoken Word and Poetry Slam. This type of poetry appeals to teenagers because it allows them to express themselves in their own language, and it allows them to address issues that they find important. This article describes the history of poetry slams, as well as the educational developments presently taking place in the United States and Europe.     

The Partial Linear Model in High Dimensions

Partial linear models have been widely used as flexible method for modelling linear components in conjunction with non‐parametric ones. Despite the presence of the non‐parametric part, the linear, parametric part can under certain conditions be estimated with parametric rate. In this paper, we consider a high‐dimensional linear part. We show that it can be estimated with oracle rates, using the least absolute shrinkage and selection operator penalty for the linear part and a smoothness penalty for the nonparametric part.     

Romantic Relationship Commitment and Its Linkages with Commitment to Parents and Friends during Adolescence

This five‐wave longitudinal study examines linkages between adolescents' perceptions of romantic relationship commitment and the development of adolescents' perceptions of commitment to parents and friends. A total of 218 early‐to‐middle adolescents (39.0 percent boys) and 185 middle‐to‐late adolescents (30.8 percent boys) participated. Multivariate growth curves showed that higher base levels of commitment and a stronger positive development of commitment to parents and friends were associated with higher levels of later commitment to romantic partners. The effects were equally strong in early‐to‐middle adolescence and middle‐to‐late adolescence. Also, commitment to parents and commitment to friends were associated equally strong to romantic relationship commitment. No gender differences were found regarding these linkages. Overall, this study shows the importance of parents and friends for boys and girls regarding committed romantic relationships. The results support the idea of one stable and general working model used in different types of relationships.     

Transactional Sex: Supply and Demand Among European Men Who have Sex with Men (MSM) in the Context of Local Laws

Objectives: Transactional sex (TS) is generally defined as the trading of sex for material goods. Cast within the broader context of prostitution laws, we examined variations in the sociodemographic profile of men who have sex with men engaging in TS by payment direction (buying/selling). Methods: The data were collected as part of the 38-country European Men who have sex with men Internet Survey project, conducted in 2010. Results: About 12% of respondents reported engaging in TS in the past year. TS was associated with laws, age, education, employment, and residence. Conclusions: The striking sociodemographic differences in TS by payment direction suggest a power differential and a leading role of socioeconomic factors in TS.     

Othering the ‘leaky body’. An autoethnographic story about expressing breast milk in the workplace

In this paper, I present an autoethnographic story about my experiences of expressing breast milk at a Dutch university department. My story illustrates how interrelated and conflicting discourses about gender, motherhood, breastfeeding, embodiment and professionalism raised issues about (in)visibility, embodied control, spatiality and discipline of my body and shaped my experience as a newly maternal employee. This paper thus aims to include bodies and embodied experiences in organization studies and highlights the need to consider spatiality as an important topic of research. I address these issues in my writing and use insights from feminist poststructuralism to show how the experiences I describe are part of a larger cultural framework of power structures that produce the ‘leaky’ maternal body as the Other, subject to (self-)discipline and marginalization. I hope my story inspires reflexivity and empathic understanding of the complex reality of experiences related to expressing breast milk in the workplace.