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161.
Jennifer E. Swanberg Sharon P. McKechnie Mamta U. Ojha Jacquelyn B. James 《Journal of Vocational Behavior》2011,79(3):613-624
The changing natures of both work and the lives of the U.S. workforce have created an array of challenges for organizations attempting to foster work engagement. To accommodate the work and family needs of an increasingly diverse workforce, many firms are offering flexible work solutions to employees. However, the distribution of these types of organizational resources is unequal, with workers in lower-wage hourly jobs having the least access to any form of flexibility. The purpose of this paper is to examine the relationship of schedule control, as a form of flexible work practice, and work engagement among workers employed in hourly retail jobs. Authors tested a model whereby the relationship between schedule control and work engagement is mediated by schedule satisfaction and perceived supervisor support. A sample of 1343 full-time hourly retail workers was used to address the study's purpose. Hypothesized relationships were fully or partially supported. Implications for research and practice are discussed. 相似文献
162.
Public understanding of climate change in the United States 总被引:2,自引:0,他引:2
This article considers scientific and public understandings of climate change and addresses the following question: Why is it that while scientific evidence has accumulated to document global climate change and scientific opinion has solidified about its existence and causes, U.S. public opinion has not and has instead become more polarized? Our review supports a constructivist account of human judgment. Public understanding is affected by the inherent difficulty of understanding climate change, the mismatch between people's usual modes of understanding and the task, and, particularly in the United States, a continuing societal struggle to shape the frames and mental models people use to understand the phenomena. We conclude by discussing ways in which psychology can help to improve public understanding of climate change and link a better understanding to action. (PsycINFO Database Record (c) 2011 APA, all rights reserved). 相似文献
163.
C. U. Moulines 《Axiomathes》2010,20(2-3):255-268
In spite of the ‘experimental turn’ now fashionable in the philosophy of science, the question of the structure and identity criteria of scientific theories continues to be a central issue for the philosophical analysis of empirical science. We need a precise metatheory of empirical theories to deal with this issue. Metatheoretical structuralism appears to offer the most adequate approach in this sense so far. First, some basic intuitions about what empirical theories are, and how they are structured, are laid out. Then, the main notions used by metatheoretical structuralism to analyze theories are explained, and they are illustrated by applying them to an example of a simple physical theory. Finally, it is argued that the picture of the structure and identity of empirical theories coming out of structuralistic analysis adequately corresponds to the basic intuitions stated at the beginning. 相似文献
164.
The aim of this study was to examine the effects of histaminergic antagonists on memory upon injection into the region of the nucleus basalis magnocellularis (NBM). In experiment 1, rats with chronically implanted cannulae were trained on the uphill avoidance task, which involves a punishment of a high-probability turning response on a tilted platform (negative geotaxis). Immediately after the training trial, that is, after a tail shock was administered upon performing the response, rats received one microinjection (0.5 microliter) of H1-receptor blocker chlorpheniramine (dose range 0.1 to 20 microgram) or the H2-receptor blocker ranitidine (same dose range) or saline into the NBM region. When tested 24 h later, rats treated with chlorpheniramine (20 micrograms) had significantly longer uphill latencies than vehicle controls and ranitidine-treated animals, indicative of superior learning of the avoidance response. In experiment 2, a test for possible proactive effects of posttrial chlorpheniramine on performance during the retention trial was performed. Animals were injected with either 20 micrograms chlorpheniramine or saline immediately after the training trial of the uphill task. One chlorpheniramine control group was treated with a delay of 5 h. Additional groups which received chlorpheniramine or vehicle after the training trial but no trail shock were included. When tested 24 h later, rats injected with 20 micrograms chlorpheniramine again exhibited significantly longer uphill latencies than did vehicle-injected rats. Retention latencies for the rats of the chlorpheniramine 5-h delayed group did not differ from those of the vehicle-injected rats, ruling out proactive effects of chlorpheniramine on performance. In summary, the histaminergic H1-blocker chlorpheniramine can enhance mnemonic functioning in addition to its reinforcing effects upon NBM injection as reported previously. 相似文献
165.
Both your intention and mine are reflected in the kinematics of my reach-to-grasp movement 总被引:1,自引:0,他引:1
The aim of the present study is to ascertain whether in a social context the kinematic parameters are influenced by the stance of the participants. In particular, we consider two basic modes of social cognition, namely cooperation and competition. Na?ve subjects were asked either to cooperate or to compete with a partner (a professional female actor), whose attitude could be either congruent or incongruent with the task instructions. Thus, on congruent conditions, subjects cooperated or competed with a partner showing a congruent cooperative or competitive attitude. On incongruent trials, the partner assumed an attitude that was manifestly in contrast with the instruction: competitive for the cooperative task, cooperative for the competitive task. We hypothesized that this mismatch between partner's attitude and instruction would produce a sort of unexpected social situation, affecting the kinematics of reach-to-grasp movement performed by the agents. If cooperative and competitive kinematic patterns are sensitive to the partner's attitude, then we should expect that an incongruent attitude have the potency to determine a reversal in kinematic patterning. Results revealed that for the incongruent trials the specific kinematic patterns for cooperation and competition found for the congruent conditions where modified according to the incongruent attitude assumed by the model actor. We suggest that this 'attitude' contagion is part of a sophisticated system that allows us to infer about the intention to act in a social context. 相似文献
166.
167.
U. Schöflinger 《Psychopraxis》2008,11(6):31-33
Aggression und Gewalt bei Jugendlichen stilisieren sich zum Sinnbild für unsere „kranke Gesellschaft“. Was sich bei jüngeren
Jugendlichen noch – oft als Lausbuben-Verhalten bagatellisiertes – Herumschubsen und Rangeln im Pausenhof ?u?ert, tritt in
Form von Bullying und Mobbing immer st?rker zutage. Jugendliche, die trinken, stehlen, Drogen zu sich nehmen, Mitschüler oder
Gruppenmitglieder bedrohen und Gegenst?nde ?ffentlichen Gutes besch?digen etc., stehen auf der Tagesordnung. Selbst Erpressung
von Mitschülern ist kein Einzeldelikt mehr. 相似文献
168.
In the explicit cuing version of the task-switching paradigm, each individual task is indicated by a unique task cue. Consequently,
a task switch is accompanied by a cue switch. Recently, it has been proposed that priming of cue encoding contributes to the
empirically observed switch costs. This proposal was experimentally supported by using a 2:1 mapping of cues to tasks, so
that a cue switch does not necessarily imply a task switch. The results indeed suggested a substantial contribution of “cue-switch
costs” to task-switch costs. Here we argue that the 2:1 mapping potentially leads to an underestimation of “pure” task-switch
costs. To support this argument, we report the results of a new study in which we used “transition cues” that indicate the
identity of the current task based on the identity of the preceding task. This new type of cue allows a full factorial manipulation
of cue switches and task switches because it includes the condition in which a cue repetition can also indicate a task switch
(i.e., when the “switch” cue is repeated). We discuss the methodological implications and argue that the present approach
has merits relative to the previously used 2:1 mapping of cues to tasks. 相似文献
169.
Prof. Dr. Dr. Dipl.-Ing. B. Widder R. Dertwinkel U.T. Egle K. Foerster M. Schiltenwolf 《Psychotherapeut》2007,52(5):334-346
The present guidelines for expert testimony have been elaborated for the first time in 2004 by medico-legal representatives from several German professional academic societies (neurology, orthopedic surgery, psychiatry, psychosomatic medicine, psychotherapy). Their aim is to standardize the course and the content of expert testimony in subjects, who complain about chronic pain as the leading symptom for seeking pension or other compensation. In 2006, the guidelines have been revised and completed by adding detailed data about classification and prognosis of chronic pain, about causality questions, and about estimation of functional impairment in different legal areas. 相似文献
170.
C. Gabbard and C. Helbig (2004) found, when examining seated participants' limb selection for reaching and grasping in hemispace, that right-handers preferred to switch to the nondominant left arm for objects located approximately 20 degrees horizontally from body midline (90 degrees) in left hemispace. In the present study, the authors examined 13 strongly lateralized seated right-handers' kinematics of reaching to object positions ranging from body midline to 40 degrees horizontally in left hemispace. Participants executed faster reaches with the left arm than with the right arm to objects placed 20 degrees-40 degrees from midline, whereas they did not change the proportion of time they spent accelerating the hands when the position of the object changed. A 2nd main finding was an increase in the left hand's trajectory curvature as object position moved farther from midline, with a corresponding decrease in the contribution of upper-arm motion to the reach. Those observations suggest that the switch from dominant right-arm reaching to nondominant left-arm reaching in left hemispace reported in the aforementioned study may have emerged from a shift from a shoulder-driven reach to an elbow-driven action. 相似文献