Video-Based Eye Tracking in Sex Research: A Systematic Literature Review

Although eye tracking has been used for decades, it has gained popularity in the area of sex research only recently. The aim of this article is to examine the potential merits of eye tracking for this field. We present a systematic review of the current use of video-based eye-tracking technology in this area, evaluate the findings, and identify future research opportunities. A total of 34 relevant studies published between 2006 and 2014 were identified for inclusion by means of online databases and other methods. We grouped them into three main areas of research: body perception and attractiveness, forensic research, and sexual orientation. Despite the methodological and theoretical differences across the studies, eye tracking has been shown to be a promising tool for sex research. The article suggests there is much potential for further studies to employ this technique because it is noninvasive and yet still allows for the assessment of both conscious and unconscious perceptional processes. Furthermore, eye tracking can be implemented in investigations of various theoretical backgrounds, ranging from biology to the social sciences.     

From Pillarized Active Membership to Populist Active Citizenship: The Dutch Do Democracy

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This contribution about the Netherlands to the special issue [or: section] on volunteering and civic action focuses on...     

End‐of‐Life Inventory Problem with Phaseout Returns

We consider the service parts end‐of‐life inventory problem of a capital goods manufacturer in the final phase of its life cycle. The final phase starts as soon as the production of parts terminates and continues until the last service contract expires. Final order quantities are considered a popular tactic to sustain service fulfillment obligations and to mitigate the effect of obsolescence. In addition to the final order quantity, other sources to obtain serviceable parts are repairing returned defective items and retrieving parts from phaseout returns. Phaseout returns happen when a customer replaces an old system platform with a next‐generation one and returns the old product to the original equipment manufacturer (OEM). These returns can well serve the demand for service parts of other customers still using the old generation of the product. In this study, we study the decision‐making complications as well as cost‐saving opportunities stemming from phaseout occurrence. We use a finite‐horizon Markov decision process to characterize the structure of the optimal inventory control policy. We show that the optimal policy consists of a time‐varying threshold level for item repair. Furthermore, we study the value of phaseout information by extending the results to cases with an uncertain phaseout quantity or an uncertain schedule. Numerical analysis sheds light on the advantages of the optimal policy compared to some heuristic policies.     

The Role of Contract Expirations in Service Parts Management

The majority of after‐sales service providers manage their service parts inventory by focusing on the availability of service parts. This approach, combined with automatic replenishment systems, leads to reactive inventory control policies where base stock levels are adjusted only after a service contract expires. Consequently, service providers often face excess stock of critical service parts that are difficult to dispose due to their specificity. In this study, we address this problem by developing inventory control policies taking into account contract expirations. Our key idea is to reduce the base stock level of the one‐for‐one policy before obsolescence (a full or partial drop in demand rate) occurs and let demand take away excess stock. We refer to this policy as the single‐adjustment policy. We benchmark the single‐adjustment policy with the multiple‐adjustment policy (allowing multiple base stock adjustments) formulated as a dynamic program and verify that for a wide range of instances the single‐adjustment policy is an effective heuristic for the multiple‐adjustment policy. We also compare the single‐adjustment policy with the world‐dependent base stock policy offered by Song and Zipkin (1993) and identify the parameter combinations where both policies yield similar costs. We consider two special cases of the single‐adjustment policy where the base stock level is kept fixed or the base stock adjustment is postponed to the contract expiration time. We find that the initial demand rate, contract expiration time, and size of the drop in demand rate are the three key parameters driving the choice between the single‐adjustment policy and its special cases.     

A Local Dimension of Integration Policies? A Comparative Study of Berlin,Malmö, and Rotterdam

This study examines three theses on local integration policies by a qualitative comparative case study of integration policies in three cities in three different countries (Berlin, Malmö, and Rotterdam). We found little evidence of a congruent local dimension of integration policies. Local policies resemble their national policy frameworks fairly well in terms of policy approaches and domains. Our multi‐level perspective shows that this is not the result of top‐down hierarchical governance, but rather of a multilevel dynamic of two‐way interaction. Local policy legacies and local politics matter and national policies are also influenced by local approaches of integration.     

Civil Society in Comparative Perspective: Involvement in Voluntary Associations in North America and Western Europe

Involvement in voluntary associations is analyzed from the perspective of questions raised in the debate about civil society. After demarcating the concept of civil society in relation to the community, the market, and the state, expectations are formulated about the negative effects of modernization and individualization on volunteering and the positive effects of volunteering on social capital and public discourse. World Values 1990 data are used for inter- and intranational analyses. Neither rankings of thirteen Western nations nor in-depth analyses of the U.S., the Netherlands, and Italy support worried reflections about the effects of modernization. The Idea that involvement in voluntary associations is conducive to social cohesion and political democracy finds empirical support. Both mere membership of an association and actual volunteering within such an association appear to be important in this respect.     

Workforce size and work-related role stress

This paper examines the relationships between workforce size and four work-role stressors, along with two variables that are proposed here to mediate these relationships: objective organizational support and perceived organizational support. A total of 112 clerical workers in organizations of 1-500 employees participated in the study. Workforce size was positively associated with role ambiguity, role conflict, quantitative and qualitative role overload, and objective organizational support; and it was negatively correlated with perceived organizational support. Partial correlations were then computed between workforce size and role stress, controlling sequentially for objective and perceived support. The relationships between workforce size and the four role stressors remained significant when objective support was controlled. However, the corresponding relationships were non-significant after partialling out the effects of perceived organizational support, which suggests that the effect of workforce size on role stressors is indirect, and a function of perceived organizational support.