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901.
This paper investigated the impact of leadership style on the stability of small social dilemma groups. In two experiments, group members were more likely to exit their group and take their resources elsewhere if they were supervised by an autocratic style leader than by a democratic or laissez-faire style leader. The destabilizing influence of autocratic leadership is due to the procedural rather than distributive aspects of this leadership style: More members exited their group under an autocratic style leader, relative to a democratic style leader, regardless of whether or not they received favorable personal outcomes from the leader. Hence, autocratic leadership is not a stable long-term solution to the problem of public goods in groups.  相似文献   
902.
903.
The term “evolution” is often used in the administrative sciences to designate dynamic processes of change in general. In biology, evolution has a very specific meaning, namely the application of a generative variation-selective retention scheme to change. Applying this to the administrative sciences is more exacting: describing what the variation consists of, how replication of the generated variation occurs and delineating the population from which the selection is made are far from easy. While it is the intention of this special issue as a whole to provide some empirical examples of evolutionary change in the public and private sectors, this introduction will lay out the main lines of thought in what is often referred to as universal Darwinism and what this means in the administrative sciences. Key concepts here are generative variation, selective retention, and selective institutional environment. According to the authors, the Darwinian scheme of evolutionary theory focuses on how new ideas or concepts arise, how they propagate and influence wider actor thinking and on how the institutional environment in which they operate affects their differential survival. This evolutionary process is an interplay between actors and replicators (sounds, images, and in this context mostly words) in which it cannot be said in advance which one is fooling the other. Martin De Jong is associate professor of public management. Haiko Van der Voort is a research associate who lectures and publishes on a wide range of issues including process management and system innovations.  相似文献   
904.
905.
Models of morphological processing make different predictions about whether morphologically complex written words are initially decomposed and recognized on the basis of their morphemic subunits or whether they can directly be accessed as whole words and at what point semantics begin to influence morphological processing. In this study, we used unprimed and masked primed lexical decision to compare truly suffixed (darkest) and pseudosuffixed words (glossary) with within-boundary (d ra kest/g ol ssary) to across-boundary (dar ek st/glos as ry) letter transpositions. Significant transposed-letter similarity effects were found independently of the morphological position of the letter transposition, demonstrating that, in English, morphologically complex whole-word representations can be directly accessed at initial word processing stages. In a third masked primed lexical decision experiment, the same materials were used in the context of stem target priming, and it was found that truly suffixed primes facilitate the recognition of their stem-target (darkest-DARK) to the same extent as pseudosuffixed primes (glossary-GLOSS), which is consistent with theories of early morpho-orthographic decomposition. Taken together, our findings provide evidence for both whole-word access and morphological decomposition at initial stages of visual word recognition and are discussed in the context of a hybrid account.  相似文献   
906.
The primary aim of this three‐wave 10‐year follow‐up study was to investigate the intra‐individual change trajectories of job‐related affective well‐being among Finnish managers (n= 402). Job‐related affective well‐being as indicated by anxiety, depression, comfort, and enthusiasm was measured in 1996, 1999, and 2006. The characteristics of the trajectories were sought from experienced career disruptions (i.e., periods of unemployment or lay‐offs) and perceived job insecurity. The growth mixture modelling (GMM) revealed altogether three latent trajectories that differed from each other in their mean levels and regard to changes in job‐related affective well‐being over time: (1) high and improving well‐being (n= 347), (2) decreased well‐being (n= 32), and (3) low and improving well‐being (n= 23). The associations between job‐related affective well‐being trajectories and career disruptions depended upon the timing of the career disruptions. In addition, perceived job insecurity is associated with concurrently decreased occupational well‐being. Overall, the results highlighted both typical and untypical development trajectories of job‐related affective well‐being and related career characteristics.  相似文献   
907.
We explored personal, social, and legal factors associated with different types of mental health treatment orders in one Missouri metropolitan court where the majority of system-involved youth are African-American. The research question under investigation is: with objective assessment information at their disposal, do judges order mental health treatment based on indicators of need or do they follow the pattern found in other studies where demographic and legal variables are key indicators? The bivariate results indicate that while males and females do not differ in mental health status, they do differ in psychosocial needs and offense patterns. In the multivariate analysis, the mental health treatment specific model indicates that commonly used indicators of need, prior mental health status and being female are related to receiving treatment orders. In the substance abuse treatment specific model, the significant factors are closely aligned with need: drug offenses, substance abuse problems, and negative influence of peers.  相似文献   
908.
In three experiments, participants decided whether a Star of David shape was present among distractors. Although the participants were instructed to ignore the colors in the display, detection was slower when each triangle of the Star of David was printed in a different color than when the Star of David was printed in a uniform color or when each triangle was in two colors. Extending the object file theory, we suggest that when the parts of an object are distinguished by a color difference and are perceived as separate objects, the perception of the whole object, which is composed of these same parts, is damaged. One interpretation within object file theory is that when the visual system represents the location of a complex object as occupied by identity tags for its different parts, it cannot also link the same location to the identity of the complex object. A new object file must then be created.  相似文献   
909.
Perceptual learning refers to the phenomenon that practice or training in perceptual tasks often substantially improves perceptual performance. Often exhibiting stimulus or task specificities, perceptual learning differs from learning in the cognitive or motor domains. Research on perceptual learning reveals important plasticity in adult perceptual systems, and as well as the limitations in the information processing of the human observer. In this article, we review the behavioral results, mechanisms, physiological basis, computational models, and applications of visual perceptual learning.  相似文献   
910.
Contemplative Pedagogy is a new and sometimes controversial pedagogical practice. Faculty often have basic questions about how to implement the pedagogy in their classrooms, in addition to questions that challenge the educational value and appropriateness of the practice. Assembled here are the most frequently asked questions about Contemplative Pedagogy, with responses from six contemplative professors, each from a different institutional and philosophical location. The respondents are founding members of the Contemplative Studies Consultation of the American Academy of Religion. The diversity of views expressed by the respondents invites the reader to see that there is no single theory or praxis of contemplative pedagogy.  相似文献   
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