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731.
Wesley J. Kasprow Doreen Catterson Todd R. Schachtman Ralph R. Miller 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1984,36(1):53-63
Using lick suppression by water-deprived rats as an associative index, white noise-footshock pairings resulted in less manifest conditioning when repeated non-reinforced presentations of the white noise preceded conditioning than when no stimulus pre-exposure was given, i.e., latent inhibition was observed. However, the latent inhibition deficit was reduced in animals who received as a reminder treatment shock-alone presentations in another context during the retention interval. Animals conditioned without prior stimulus pre-exposure and those exposed to the white noise and shock unpaired during the conditioning phase of the study showed no change in lick suppression as a result of the reminder treatment. These results suggest that the behavioural deficit produced by non-reinforced pre-exposure to the to-be-conditioned stimulus arises at least in part from a reversible retrieval failure rather than a lack of acquisition. 相似文献
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Mary Vriniotis MS Catherine Barber MPA Elaine Frank PhD Ralph Demicco the New Hampshire Firearm Safety Coalition 《Suicide & life-threatening behavior》2015,45(2):157-163
A spate of suicides involving a just‐purchased firearm led a statewide coalition of firearm dealers, firearm rights advocates, and suicide prevention professionals to discuss the role of gun shops in preventing suicide. The group developed and mailed materials for (1) firearm retailers on avoiding sales to suicidal customers and (2) their customers on suicide and firearm safety. All storefront retailers were identified (n = 65), visited unannounced 6 months after receiving materials, and asked to complete a survey. Nearly half (48%) had at least one campaign product on display. Belief that reducing a suicidal person's access to firearms might save a life was associated with displaying materials (69% vs. 41%, p = .06). Public health and gun groups can successfully collaborate on suicide prevention activities. 相似文献
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A simple normal approximation is supplied to test the equality of two independent Chi-square variables. The approximation
appears to be valid for degrees of freedom as small as two. Thus no new table of critical values is needed. The standard unit
normal distribution tables are sufficient. 相似文献
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ABSTRACTA stalemate has emerged in mainstream liberal/left responses to Trump. Many commentators prefer to see our predicament in terms of either class-based or identity politics. Vis-à-vis the influence of the Chicago school of economics and its structural adjustment schemes, we crosshatch MLK’s Poor People’s Campaign and Polanyi’s Great Transformation to envision overcoming this stalemate. King’s effort to radicalize the welfare state from below by linking struggles against poverty, racism, and imperialism shares Polanyi’s focus on the economy’s embeddedness in society. We underscore the importance of King’s and Polanyi’s visions for building a leftist coalition that does not divorce social from economic justice. 相似文献
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Lloyd B. Potter Marcie-jo Kresnow Kenneth E. Powell Patrick W. O'Carroll Roberta K. Lee Ralph F. Frankowski Alan C. Swann Timothy L. Bayer Marilyn H. Bautista Margaret G. Briscoe 《Suicide & life-threatening behavior》1998,28(2):174-186
The Self-inflicted Injury Severity Form (SIISF) was developed as an epidemiological research tool for identifying individuals in hospital emergency departments who have life-threatening self-inflicted injuries. Data were collected from 715 patients with self-inflicted injuries in two large hospitals. In 295 of these cases, a second set of data was independently collected for assessment of interrater reliability. Validity was assessed by comparing the SIISF results with simultaneously collected Risk—Rescue Ratings. Assessment of interrater reliability found that only 2.4% of physicians disagreed on the suicide method used. The kappa statistic for method used was .94, indicating excellent agreement. The SIISF was found to distinguish between severe and less severe injuries. Thus, it appears to provide a simple method to distinguish patients who have life-threatening self-inflicted injuries. 相似文献