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Wylie Eng Sarah Moore Leon Grunberg Edward Greenberg Pat Sikora 《Current psychology (New Brunswick, N.J.)》2010,29(2):104-120
The current study examined how work support resources and working from home influenced forms of work-family conflict (WFC)
in employees at a large corporation. Scales measuring employee’s general WFC, time-based WFC, and strain-based WFC were used
to evaluate the extent to which employees experienced work-induced conflict at home. Two forms of working at home were assessed,
days worked at home and extra hours worked at home, and five variables measured the extent of one’s support resources: work
social support, organizational support, individual consideration from one’s manager, idealized influence from one’s manager
and contingent reward from one’s manager. We predicted that days worked at home would be negatively related to the three forms
of WFC, while the extra hours worked at home would be positively related. Moreover, we hypothesized that the five support
variables would moderate the relationship between extra hours worked at home and the types of WFC. The data supported some
of the predictions, and the implications of these findings are discussed. 相似文献
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Defecation rate was monitored during daily 30-min periods as 16 rats were exposed to different sequences of the following three experimental conditions: (a) a fixed-time 60-s food delivery schedule, (b) a massed-food presentation baseline, and/or (c) a no-food baseline. All food delivery was response independent. Rate of defecation increased during fixed-time 60-s food delivery when compared to baseline rates of defecation established during no-food and massed-food baselines. This effect was present for 12 of 16 rats during four alternative sequences of experimental conditions. Within-subject reversals established reliability of this effect. Schedule induction of defecation is clearly demonstrated under these conditions. 相似文献
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SF Akana ES Hanson CJ Horsley AM Strack S Bhatnagar MJ Bradbury ED Milligan MF Dallman 《Stress (Amsterdam, Netherlands)》1996,1(1):33-49
To determine the effects of both corticosterone (B) and chronic stressors on acute ACTH responses to restraint, young male rats were exposed to streptozotocin-induced diabetes, cold (5-7 degreesC) or intracerebroventricular (icv) neuropeptide Y (NPY) for 5 d and then exposed to restraint within 2 h after lights on. Two groups of rats were studied: intact and adrenalectomized replaced with B pellets that maintained plasma B in the normal mean 24-h range of intact rats. In addition to ACTH and B responses to restraint on d 5, body weight, food intake, fat depots, glucose and other hormones were measured to determine the role of stress-induced elevations in B on energy balance. ACTH responses to restraint were normal in intact rats subjected to diabetes or cold. By contrast, there was no ACTH or B response to restraint in NPY-infused intact rats. All 3 groups of chronically stimulated adrenalectomized rats with clamped B had facilitated ACTH responses to restraint compared to their treatment controls. Overall food intake increased in all groups of stressed rats; however, augmented intake occurred only during the light in intact rats and equally in the light and dark in B-clamped rats. White adipose depot weights were decreased by both diabetes and cold and increased by NPY in intact rats; the decreases with cold and increases with NPY were both blunted and changes in fat stores were not significant in adrenalectomized, B-clamped rats. We conclude that: 1. diabetes- and cold-induced facilitation of restraint-induced afferent input to hypothalamic control of the hypothalamo-pituitary-adrenal (HPA) axis is opposed in intact rats by the elevated feedback signal of B secretion; 2. NPY does not induce facilitation of afferent stress pathways; 3. chronic stimulation of the HPA axis induces acute hyperresponsiveness of hypothalamic neurons to restraint provided that the afferent input of this acute stimulus is not prevented by B feedback; 4. stimulus-induced elevations in B secretion result in day-time feeding; 5. insensitivity of both caloric efficiency and white fat stores to chronic stress in adrenalectomized, B-clamped rats results from loss of normally variable B levels. 相似文献
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RESPONSE REDUCTION THROUGH THE SUPERIMPOSITION OF CONTINUOUS REINFORCEMENT: A SYSTEMATIC REPLICATION
Prior clinical research suggests that superimposition and subsequent removal of a schedule of continuous reinforcement (CRF) may be a viable rate-decreasing procedure in that an extinction-like condition is arranged. The arrangement of similar conditions in the laboratory, however, resulted in the quick recovery of baseline rates. Lever-pressing patterns of eight male rats maintained by different schedules of variable-ratio and variable-interval food reinforcement were examined in an A-B-A experimental design of CRF food superimposition and removal. Responding was substantially reduced during the superimposition of CRF. Upon removal of the superimposed schedule, responding quickly approached presuperimposition baseline rates. 相似文献
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The purpose of this study was to compare the drinking behaviors of college students at a large state university to the drinking behaviors of their counterparts at a smaller church university.Questionnaires were administered to a total sample of 764—434 students represented the state university, while 330 students represented the church university. Statistical analysis of the data revealed significant differences at the .05 alpha level between the two groups of drinkers. However, many similarities between the two groups did exist. Two of the three null hypotheses were supported by the data. Only in one category did the drinkers at the church school respond notably higher than the state school drinkers. Considerably more church school drinkers admitted to drinking primarily when in a lonely or sad mood than the state school drinkers. Drinkers at the church school felt a need to hide or be alone when drinking and did not use alcohol to socialize as often as their state school counterparts. 相似文献
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