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81.
82.
This research focuses on female underrepresentation in managerial positions. Specifically, two studies examine gender‐typing for managerial roles in Spain using ratings for real and ideal managers. In addition, we analyse the existence of same‐gender bias on evaluations of the behavior of actual leaders. In the first study, 195 Spanish workers evaluate the extent to which gender‐stereotypical traits are important for becoming a successful middle manager in three conditions (female managers, male managers, and managers in general). In the second study, we explore the degree to which the behavior of real Spanish managers is gender‐typed and the existence of same‐gender bias on leadership styles – transformational, transactional and avoidant/passive – and on leadership outcomes – effectiveness, extra effort and satisfaction – from the perspective of subordinates (= 605). Overall, the results demonstrate that masculine characteristics were rated as more important than feminine characteristics for managerial positions, and they were more often assigned to male managers than to female managers. Unexpectedly, this manager‐male association is stronger among female participants than among male participants. Our findings also demonstrate that women subordinates evaluate their same‐sex supervisors more favorably in transformational leadership, effectiveness, and extra effort. The negative consequences derived from gender‐typing managerial positions are highlighted according to the role congruity theory of prejudice toward female leaders. The positive effects of in‐group female bias on behavior ratings are also noted. The mixed implications of these results for women's advancement to leadership positions are discussed.  相似文献   
83.
This paper explores the ramifications of excessive use of media on personality development, the development of symbolic and thinking functions and on psychic reality. In doing so, the questions of whether there are specific media objects possessing an intrinsic symbolic quality, and which attachments in the inner world of a child/adolescent can be mobilized or destroyed are discussed. By selecting specific material, computer gamers use their game to activate the field of a personal psychic reality. Hereby, they attempt some kind of self‐healing. However, after leaving the game, conflicts and traumata re‐enacted but unresolved in the game disappear from their temporary representation without generating any resonance in the gamer's psychic experience. Consequently, although states of mind and affects are activated in the computer game, their processing and integration fail; the game results in a compulsive repetition. The construction and consolidation of retrievable maturation and structural development, the representation of the unrepresentable, succeed in the context of the triangulating analytic relationship, initially through a jointly performed symbolic and narrative re‐experience or the recreation of the game. Theoretical considerations are illustrated by means of clinical vignettes.  相似文献   
84.
Multiple-exemplar training with stimuli in four domains induced two new fill-based (A1' and A2') and satellite-image-based (B1' and B2') perceptual classes. Conditional discriminations were established between the endpoints of the A1' and B1' classes as well as the A2' and B2' classes. The emergence of linked perceptual classes was evaluated by the performances occasioned by nine cross-class probes that contained fill variants as samples and satellite variants as comparisons, along with nine other cross-class probes that consisted of satellite variants as samples and fill variants as comparisons. The 18 probes were first presented serially and then concurrently. Class-consistent responding indicated the emergence of linked perceptual classes. Of the linked perceptual classes, 70% emerged during the initial serial test. An additional 20% of the linked perceptual classes emerged during the subsequently presented concurrent test block. Thus, linked perceptual classes emerged on an immediate or delayed basis. Linked perceptual classes, then, share structural and fuctional similarities with equivalence classes, generalized equivalence classes, cross-modal classes, and complex maturally occurring categories, and may clarify processes such as intersensory perception.  相似文献   
85.
书写和阅读是在文字的基础上发展起来的, 二者存在共享的神经网络。书写能影响阅读, 阅读不仅依靠视觉加工, 还依赖书写运动表征。不同书写方式对阅读的影响不同, 传统书写对阅读有促进作用, 电脑打字对阅读产生了一定的消极影响。对汉字来说, 传统书写能加强汉字的正字法表征, 促进汉字阅读; 电脑打字对汉字阅读的影响尚无一致结论。未来研究可以考察传统书写与电脑打字神经机制的差异, 以及电脑打字对汉字认知加工的影响及神经机制。  相似文献   
86.
Behavioral momentum was examined in 2 individuals with severe mental retardation via within-subject manipulations of obtained reinforcer rates. Subjects performed self-paced discrimination problems presented on a touch screen computer monitor. Two different problems, Tasks A and B, alternated in blocks of 15 trials on a multiple schedule. Reinforcers were snack foods. The reinforcement schedule for Task A was continuous (fixed-ratio 1) and the schedule for Task B was continuous in some conditions and variable ratio in other conditions. Behavioral momentum was assessed in test sessions by prefeeding, presenting response-independent food, and making available alternatives to the tasks. When the obtained reinforcer rate for Task A was at least twice that for Task B, resistance to change was greater for Task A. When both reinforcer rates and response rates were a pproximately equal for the two tasks, resistance to change was approximately equal. These results are consistent with behavioral momentum effects. They extend previous findings with humans by examining momentum in self-initiated discrete-trial discrimination tasks with ratio schedules, and by isolating relative reinforcer rates as a controlling variable via within-subject manipulations.  相似文献   
87.
A four-member equivalence class (A → B → C → D) can be formed by training AB, BC, and CD. The nodal stimuli, B and C, mediate all of the derivative (transitive and equivalence) relations in the class. The derivative relations AC, CA, BD, and DB are separated by one node, whereas AD and DA are separated by two nodes. How do the number of nodes that separate the stimuli in a derivative relation influence the induction of stimulus control exerted by that relation? Seven college students learned two four-member classes made up of nonsense syllables. After training, all derivative relations were presented repeatedly without informative feedback. Stimulus control exerted by each derivative relation was assessed concurrently. For the 7 subjects, control exerted by the derivative relations increased gradually with repeated presentations. With 6 of the 7 subjects, the one-node relations exerted more control than the two-node relations during the process. However, the disparity between the one- and two-node relations decreased with repeated presentations. Eventually, all derivative relations exerted complete control. The control exerted by derivative relations during induction was inversely related to the number of nodes separating the terms in the derivative relations. These results demonstrate that nodal distance is a determinant of the relatedness of stimuli in equivalence classes. The findings are discussed in terms of remote association, semantic memory networks, and the study of transitive inference.  相似文献   
88.
The influence of ruthenium (Ru) on the partitioning behavior of W, Re and Cr in γ′-Ni3Al has been studied using the Dmol3 method based on the density functional theory. The calculated results show that W, Re and Cr have a preference for the Ni site in γ′-Ni3Al alloyed with Ru. When Ru substitutes the central Ni atom, the site preference for W, Re and Cr varies. Furthermore, an electronic structure analysis of the alloy in terms of the Mulliken population and partial density of states was performed to elucidate the alloying mechanism of Ru in γ′-Ni3Al. The results show that the strengthening effect of Ru in the alloy arises from a reduction in the binding energy of Ru as well as p-orbital hybridization between Ru and the host atoms.  相似文献   
89.
As the culture of information technology grows and with it the exacerbation of associated problems, so does the body of literature that seeks to reflect on its impact and prospects. The advancements in information technology tend to be outpacing critical reflection and solid ethical analysis. The quality of the foundational ethical work done in information technology ethics has been inadequate, consisting of applied ethics or an appeal to law. This article considers how the richer perspective—the common good, as expressed through the lens of the Roman Catholic Church—can serve as a hermeneutic in the field of information technology ethics, offering a more substantial foundation to address pressing controversial issues associated with this burgeoning field and function as a guide for future developments in this industry. The common good can supplement the operative ways of appealing to law and business ethics to address crime and abuse associated with the World Wide Web with a specifically Roman Catholic paradigm and, in turn, offer a broader and richer appreciation of the societal-wide context that information technology impacts.  相似文献   
90.
This study examined the influence of mode of test administration (paper based or computer-based) on anxiety levels and test performance. Participants were 44 learners (males = 22, females = 22) from three schools in Johannesburg, South Africa who completed both a computer and paper version of the Differential Aptitude Test—Form K Non-Verbal Reasoning test, the Computer Attitude Scale, the Computer Anxiety Rating Scale and Sarason's Test Anxiety Scale. Test anxiety was significantly related to both computer and paper based testing.  相似文献   
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