In welchen Lebensbereichen lernen Jugendliche Ausländerfeindlichkeit?

Youth research largely ignores apprentices. What little evidence there is on hostility towards foreigners among apprentices is contradictory. Starting with this scant knowledge the paper investigates in which life spheres (family, peers, school, work) apprentices learn this hostility. The study surveyed 374 respondents with German parents in Nuremberg. The results show clear evidence that family and peers are particularly important.     

robROSE: A robust approach for dealing with imbalanced data in fraud detection

Statistical Methods & Applications - A major challenge when trying to detect fraud is that the fraudulent activities form a minority class which make up a very small proportion of the data set....     

Fremdheit und Unterschied als Hürde und Chance

This paper is based on the personal experience of persons who have been strangers themselves and discusses the effect of (actual and attributed) strangeness on a person’s identity within a group, the subjective perception people have of others who are different, and also the way groups handle this strangeness. The attempts to explain these experiences and the observed social phenomena within groups serve to introduce the issue of what role ‘difference’ plays in organizational development. Difference is perceived both as barrier and opportunity, a window to self-knowledge, learning and further development.     

Psychopathology of transvestism and transsexualism

Vaginismus being a reaction of avoidance of an anxiety‐producing situation, is readily amenable to treatment by systematic desensitization. This may proceed in two main ways: “in vitro” or “in vivo”. In order to strengthen and speed‐up the desensitization process, we used hypnotic techniques in a dynamic approach.

The first session of both methods is dedicated to building an adequate doctor‐couple relationship, careful history‐taking and dissipation of myths and fallacies regarding sexuality or hypnosis. Any attempts at sexual intercourse are forbidden at this stage.

The “in vitro” treatment proceeds with the imagery, under hypnosis, of an “anxiety hierarchy” of increasingly erotic and sexually intimate situations, which will be reproduced at home with the partner, until sexual intercourse is achieved. In the “in vivo” method the patient learns self‐hypnosis and then inserts into her vagina first her finger, then Hegar dilators of gradually increasing size. The partner, the patient and the physician will then successively proceed to the insertion, forming a team work situation. This continues until the “female superior position”, practiced first with the largest dilator, is reproduced at home by intercourse.     

Bargaining with reasonable aspirations

Consider bargaining situations with two persons, where both have a specific idea of what would be an equitable outcome. In case these ideas differ, a procedure is needed which leads to a compromise between the different views. In the present paper the axioms of restricted homogeneity and of relative monotonicity are introduced, each of which, together with other standard conditions, allows one to determine a solution for this class of bargaining problems. An extension of this solution to bargaining problems with more than two persons is formulated.     

A theorem on utilitarian redistribution

A theorem is presented which characterizes regions where the marginal utilities of most goods decrease with increasing utility, given non-inferiority of one good and a strictly concave utility function. An analysis of the optimum utilitarian tax rests on this result.I am grateful to Josef Falkinger and Bengt-Arne Wickström for helpful comments. A previous version of the paper was written when the author visited Oxford University, Wolfson College.     

Validation of a measure of college students' intoxicated behaviors: associations with alcohol outcome expectancies, drinking motives, and personality

OBJECTIVE: The authors aimed to develop a measure of college students' intoxicated behaviors and to validate the measure using scales assessing alcohol outcome expectancies, motives for drinking, and personality traits. PARTICIPANTS AND METHOD SUMMARY: The authors administered these measures and an inventory describing 50 intoxicated behaviors to 198 college students and conducted factor analysis on intoxicated behaviors. Logistic regression models examined relationships between intoxicated behavior dimensions and expectances, motives, and personality traits. RESULTS: Self-reported behaviors during intoxication episodes were reducible to 3 basic dimensions that formed reliable and valid scales: social, antisocial, and emotionally labile intoxication. CONCLUSIONS: Researchers can use the Intoxicated Behaviors Inventory to evaluate the effectiveness of interventions targeting drinking or to identify college students at risk for problematic consequences of alcohol use. In addition, results point to the need for community efforts to encourage more moderate drinking among college students.     

On generalized variance of product of powered components and multiple stable Tweedie models

A flexible family of multivariate models, named multiple stable Tweedie (MST) models, is introduced and produces generalized variance functions which are products of powered components of the mean. These MST models are built from a fixed univariate stable Tweedie variable having a positive value domain, and the remaining random variables given the fixed one are also real independent Tweedie variables, with the same dispersion parameter equal to the fixed component. In this huge family of MST models, generalized variance estimators are explicitly pointed out by maximum likelihood method and, moreover, computably presented for the uniform minimum variance and unbiased approach. The second estimator is brought from modified Lévy measures of MST which lead to some solutions of particular Monge–Ampère equations.