55 research outputs found

    Different Shades—Different Effects? Consequences of Different Types of Destructive Leadership

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    Destructive leadership comes in many shapes and forms. From reviewing the literature, we conclude that three major forms of destructive leader behaviors are described: (1) follower-directed destructive behaviors, i.e., genuine abusive forms of destructive leadership, (2) organization-directed behaviors, i.e., behaviors such as stealing from the organization or embezzlement, and (3) self-interested destructive leader behavior, i.e., leader who exploit others to reach their goals. One can easily imagine that these three types of leader behavior have very different effects on followers. Unfortunately, so far, there is no empirical evidence to support this, since comparative research in the field of destructive leadership is scarce. With this paper, we aim to address this gap: In two studies, an experimental and a field study, we examine the differential impact of these three different destructive leader behaviors on two important outcomes: first, their impact on different emotional reactions of followers, the most proximal outcome to a social interaction. Second, we examine a key outcome in leadership research: followers' turnover intention. The results suggest that different types of destructive leader behavior do impact followers differently. Whereas all three behaviors had a positive relationship with negative affect, follower-directed destructive behaviors had the strongest relation out of the three. As expected, all three types of destructive behavior relate to turnover intention, yet, the results of our study suggest that different types of destructive leader behavior relate to different urgencies of turnover intention. We conclude that a tailored approach to destructive leadership, whether in research or practice, seems necessary, as diverse types of destructive leader behaviors affect employees differentially

    The Multiple Dimensions of Gender Stereotypes: A Current Look at Men’s and Women’s Characterizations of Others and Themselves

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    We used a multi-dimensional framework to assess current stereotypes of men and women. Specifically, we sought to determine (1) how men and women are characterized by male and female raters, (2) how men and women characterize themselves, and (3) the degree of convergence between self-characterizations and charcterizations of one’s gender group. In an experimental study, 628 U.S. male and female raters described men, women, or themselves on scales representing multiple dimensions of the two defining features of gender stereotypes, agency and communality: assertiveness, independence, instrumental competence, leadership competence (agency dimensions), and concern for others, sociability and emotional sensitivity (communality dimensions). Results indicated that stereotypes about communality persist and were equally prevalent for male and female raters, but agency characterizations were more complex. Male raters generally descibed women as being less agentic than men and as less agentic than female raters described them. However, female raters differentiated among agency dimensions and described women as less assertive than men but as equally independent and leadership competent. Both male and female raters rated men and women equally high on instrumental competence. Gender stereotypes were also evident in self-characterizations, with female raters rating themselves as less agentic than male raters and male raters rating themselves as less communal than female raters, although there were exceptions (no differences in instrumental competence, independence, and sociability self-ratings for men and women). Comparisons of self-ratings and ratings of men and women in general indicated that women tended to characterize themselves in more stereotypic terms – as less assertive and less competent in leadership – than they characterized others in their gender group. Men, in contrast, characterized themselves in less stereotypic terms – as more communal. Overall, our results show that a focus on facets of agency and communality can provide deeper insights about stereotype content than a focus on overall agency and communality

    MORC1 exhibits cross-species differential methylation in association with early life stress as well as genome-wide association with MDD

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    Early life stress (ELS) is associated with increased vulnerability for diseases in later life, including psychiatric disorders. Animal models and human studies suggest that this effect is mediated by epigenetic mechanisms. In humans, epigenetic studies to investigate the influence of ELS on psychiatric phenotypes are limited by the inaccessibility of living brain tissue. Due to the tissue-specific nature of epigenetic signatures, it is impossible to determine whether ELS induced epigenetic changes in accessible peripheral cells, for example, blood lymphocytes, reflect epigenetic changes in the brain. To overcome these limitations, we applied a cross-species approach involving: (i) the analysis of CD34+ cells from human cord blood; (ii) the examination of blood-derived CD3+ T cells of newborn and adolescent nonhuman primates (Macaca mulatta); and (iii) the investigation of the prefrontal cortex of adult rats. Several regions in MORC1 (MORC family CW-type zinc finger 1; previously known as: microrchidia (mouse) homolog) were differentially methylated in response to ELS in CD34+ cells and CD3+ T cells derived from the blood of human and monkey neonates, as well as in CD3+ T cells derived from the blood of adolescent monkeys and in the prefrontal cortex of adult rats. MORC1 is thus the first identified epigenetic marker of ELS to be present in blood cell progenitors at birth and in the brain in adulthood. Interestingly, a gene-set-based analysis of data from a genome-wide association study of major depressive disorder (MDD) revealed an association of MORC1 with MDD

    Über einige Bestandsveränderungen märkischer Raubvögel

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    Teaching Evaluation at the Medical Faculty of Freiburg, part I: an overview

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    A comprehensive evaluation-based system for quality assurance was developed at the Medical Faculty of Freiburg during the course of several years. The system comprises the following levels: Level-I: Annual summative evaluation of the entire curriculum (academic years 1 through 5 and separately the Practical Year). The primary goal is a deficit analysis of the teaching quality of the several disciplines, thereby mainly referring to structural parameters.Level-II: Formative evaluation of the several courses/lectures with emphasis on didactic parameters. It allows a more detailed analysis of the quality of teaching. Especially those disciplines are examined that are identified by the level-I-evaluation as being in need of improvement. The intention of any form of evaluation is its use as an instrument for optimising the teaching quality. Therefore transferring the evaluation results in measures improving quality is resolutely pursued on all levels of evaluation.Im Laufe mehrerer Jahre ist in Freiburg ein umfassendes evaluationsbasiertes System zur Sicherung bzw. Optimierung der Lehrqualität entstanden. Dieses System umfasst folgende Ebenen: Ebene-I: Summative Jahresendevaluation aller Hauptvorlesungen und Kurse der scheinpflichtigen Fächer der ersten fünf Studienjahre sowie gesondert des Praktischen Jahres (PJ). Ziel ist die Defizitanalyse der Lehrqualität auf der Ebene der einzelnen Fächer, vorwiegend bezogen auf strukturelle Faktoren. Ebene-II: Formative Evaluation einzelner Lehrveranstaltungen schwerpunktmäßig unter didaktischen Gesichtspunkten. Besonders die durch die Ebene-I identifizierten Schwachstellen des Lehrangebotes werden hier detaillierter analysiert. Der Anspruch jeglicher Form der Evaluation ist ihre Nutzung als Instrument zur Optimierung der Qualität. Insofern wird auf allen Ebenen konsequent an der Umsetzung der Ergebnisse in qualitätsverbessernde Maßnahmen gearbeitet

    Mise à jour taxonomique et répartition des puces du genre Ctenophthalmus

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    Taxonomic update and geographic distribution of fleas of the genus Ctenophthalmus Kolenati 1856 in the Western Palearctic Region (Insecta: Siphonaptera: Ctenophthalmidae). Among fleas (Siphonaptera), the genus Ctenophthalmus is the one that comprises the largest number of taxa and is also characterized by a large geographical range. Here, we present a taxonomic revision of the Western Paleartic subgenera, groups, species and subspecies. We recognized a total of 143 taxa (57 species and 86 subspecies). These taxa are clustered into 23 groups of species, which fall into seven of the 16 subgenera of the genus Ctenophthalmus. According to Hopkins & Rothschild (1966), the subgenus Ctenophthalmus would only include the agyrtes group, itself divided into subgroups. We decided to raise these subgroups to group status to clarify taxonomic relationships within the subgenus Ctenophthalmus. Within this subgenus, the arvernus group is renamed baeticus, the fransmiti group is confirmed, and the egregius group is created. For each taxon, we provided information on geographical distribution, mammalian hosts, and host specificity
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