The gender identity/gender dysphoria questionnaire for adolescents and adults

The present study reports on the construction of a dimensional measure of gender identity (gender dysphoria) for adolescents and adults. The 27-item gender identity/gender dysphoria questionnaire for adolescents and adults (GIDYQ-AA) was administered to 389 university students (heterosexual and nonheterosexual) and 73 clinic-referred patients with gender identity disorder. Principal axis factor analysis indicated that a one-factor solution, accounting for 61.3% of the total variance, best fits the data. Factor loadings were all >or= .30 (median, .82; range, .34-.96). A mean total score (Cronbach's alpha, .97) was computed, which showed strong evidence for discriminant validity in that the gender identity patients had significantly more gender dysphoria than both the heterosexual and nonheterosexual university students. Using a cut-point of 3.00, we found the sensitivity was 90.4% for the gender identity patients and specificity was 99.7% for the controls. The utility of the GIDYQ-AA is discussed.     

Methods for testing subblock patterns

A number of statistical tests have been recommended over the last twenty years for assessing the randomness of long binary strings used in cryptographic algorithms. Several of these tests include methods of examining subblock patterns. These tests are the uniformity test, the universal test and the repetition test. The effectiveness of these tests are compared based on the subblock length, the limitations on data requirements, and on their power in detecting deviations from randomness. Due to the complexity of the test statistics, the power functions are estimated by simulation methods. The results show that for small subblocks the uniformity test is more powerful than the universal test, and that there is some doubt about the parameters of the hypothesised distribution for the universal test statistic. For larger subblocks the results show that the repetition test is the most effective test, since it requires far less data than either of the other two tests and is an efficient test in detecting deviations from randomness in binary strings.     

A model for national planning policies

This paper attempts to develop a multiobjective model to help policy-makers choose the most appropriate mix of economic policies concurrent with the elimination of serious gaps. Each individual policy attempts to achieve a specific goal or a set of subgoals; but it may hinder the achievement of some other subgoals. To differentiate between the importance of different objectives, the analyst assigns different priorities to each of the given set of subgoals. Three sets of results are provided by three separate computer runs of this model. Each set of results corresponds to one of the three priority structures, and each run indicates quite differing underachievements or over-achievements of individual subgoals. A detailed explanation for each of these deviations (gaps) from the targeted subgoals is attempted in an overall framework and some interactions between various gaps (savings gaps, foreign exchange gap, domestic growth gap, GNP gap, etc.) are also identified.     

Maternal labor market return and domestic work after childbirth in Britain and Germany

This study investigates how the duration of maternal labor market interruptions and mothers' employment status after return relate to the division of domestic work in couples after childbirth in West Germany, East Germany, and Britain. It extends the literature by considering how these two aspects of postnatal labor market return decisions of mothers may give rise to or counteract growing gender inequality in domestic work afterbirth events. Using data on 826 British and 1614 German new parent couples based on the British Household Panel Study (BHPS) (1991–2008) and on the German Socio-Economic Panel (SOEP) (1990–2010), I apply fixed-effects panel models. Mothers perform more housework with increasing length of their employment interruptions across the three contexts. For childcare, longer time-outs increase mothers' childcare share in West Germany but not in East Germany. This result is in line with institutional variations in day-care provision. Across contexts, mothers' full-time returns are associated with a larger reduction in their domestic work share than short time-out. After mothers returned to part-time employment, couples show no or much weaker compensating behaviors for longer previous maternal time-outs than after a full-time return.     

A comparison of applications of microcomputers in production

Earlier research has established that the full potential of microcomputers is not being achieved by production management in small companies. Moreover, questionnaire results and in-company interviews were used to support suggested reasons for this situation. This paper reports further work carried out to examine the issues raised in far more detail. Collaboration took place with nine separate companies over a range of applications. Three of these case studies are presented in detail, and general conclusions drawn relating both to these specific studies and to the total collaboration.     

Local Day Care Quality and Maternal Employment: Evidence From East and West Germany

By investigating how locally available early childhood education and care quality relates to maternal employment choices, this study extends the literature, which mostly has focused on the importance of day care availability or costs. The authors provide differentiated analyses by the youngest child's age and for West and East Germany to examine moderating influences, such as work‐care cultures, in a market with strongly state‐subsidized provision and near‐universal participation of preschool children. The empirical analysis linked the Socio‐Economic Panel and the Families in Germany Study for 2010 and 2011 (N = 3,301 mothers) with regional structural quality data and applied multivariate regression models. In East Germany, mothers with a child under age 3 years who lived in districts with smaller day care groups were more likely to be employed and to extend their work hours. For mothers in West Germany and those with older children, day care quality was not significantly related to employment.     

Optimal replacement strategies in network infrastructures under quality penalties

As a consequence of liberalization, electric utilities have developed different asset management strategies with the aim of reducing total maintenance costs by prolonging replacement cycles. A cost-minimizing network operator has to optimize the trade-off between costs for early replacement and quality penalties he faces in the case of outages (due to a resulting higher number of failures). The basic purpose of this paper is to identify the optimal decisions for a network operator under output-based quality regulation and to determine the main drivers for his decisions. In order to derive general insights, an analytical framework is chosen for this paper. This work builds on the foundations of optimal maintenance and replacement strategies as developed across Operations Research, Production Economics and Engineering Production Theory. As main results we are able to analytically derive optimal replacement strategies for network components depending on the characteristics of their failure distributions linked to the equipment’s cost, respective replacement cost, and quality penalties.