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101.
Barbara L. Harper Brian Flett Stuart Harris Corn Abeyta Fred Kirschner 《Risk analysis》2002,22(3):513-526
Exposure scenarios are a critical part of risk assessment; however, representative scenarios are not generally available for tribal communities where a traditional subsistence lifestyle and diet are relevant and actively encouraged. This article presents portions of a multipathway exposure scenario developed by AESE, Inc. in conjunction with the Spokane Tribal Cultural Resources Program. The scenario serves as the basis for a screening-level reasonable maximum exposure (RME) developed for the Midnite Uranium Mine Superfund site. The process used in developing this scenario balances the need to characterize exposures without revealing proprietary information. The scenario and resulting RME reflect the subsistence use of original and existing natural resources by a hypothetical but representative family living on the reservation at or near the mine site. The representative family lives in a house in a sparsely populated conifer forest, tends a home garden, partakes in a high rate of subsistence activities (hunting, gathering, fishing), uses a sweat lodge daily, has a regular schedule of other cultural activities, and has members employed in outdoor monitoring of natural and cultural resources. The scenario includes two largely subsistence diets based on fish or game, both of which include native plants and home-grown produce. Data gaps and sources of uncertainty are identified. Additional information that risk assessors and agencies need to understand before doing any kind of risk assessment or public health assessment in tribal situations is presented. 相似文献
102.
103.
Juliet Harper 《The Australian journal of social issues》1992,27(1):3-16
This study of social attitudes to adoption as reflected in Australian women's journals over a forty year period indicates that secrecy has given way to more open acknowledgement of adoptive status and access to original birth records at 18 years in all Australian states. However, while there have been changes in official social welfare policies, the notion of entitlement to a child by a couple still prevails. Despite a more liberal approach towards single parenthood, there remains a strong underlying feeling that the single pregnant female should give up her child so as to allow an infertile couple to create a family. 相似文献
104.
105.
Heather Peters Maree Hunt David Harper 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2010,26(4):521-531
Despite the prevalence of problem gamblers and the ethical issues involved in studying gambling behavior with humans, few
animal models of gambling have been developed. When designing an animal model it is necessary to determine if behavior in
the paradigm is similar to human gambling. In human studies, response latencies following winning trials and near win trials
are greater than those following clear losses. Weatherly and Derenne (Anal Gambl Behav 1:79–89, 2007) investigated whether this pattern was found with rats working in an animal analogue of slot machine gambling. They found
a similar pattern of response latencies but the subjects’ behavior did not come under control of the visual stimuli signalling
the different outcomes. The animal model of slot machine gambling we used addressed procedural issues in Weatherly and Derenne’s
model and examined whether reinforcer magnitude and the presence of near win trials influenced response latency and resistance
to extinction. Response latencies of the six female Norway Hooded rats varied as a function of reinforcer magnitude and the
presence of near-win trials. These results are consistent with prior research and with the idea that near win trials serve
as conditional reinforcers. 相似文献
106.
Dorothy L. Espelage Christopher R. Harper Katherine M. Ingram Kathleen C. Basile Ruth W. Leemis Kyle K. Nickodem 《Journal of research on adolescence》2023,33(2):530-546
Using family systems theory, this longitudinal study of middle school youth examined the effects of abuse, family conflict, and sibling aggression on sexual harassment perpetration (N = 1563; Mage 11.2, 51% boys; 39% Hispanic, 29% Black, and 19% White). Boys reported more sexual harassment than girls; perpetration increased for both. The association between a hostile home environment and sexual harassment perpetration was moderated by school experiences. School belonging buffered effects of hostile home environment on baseline sexual harassment perpetration for boys who experienced abuse and White adolescents with high sibling aggression. Academic grades moderated change in perpetration over time, but effects differed by sex and race. It is important to understand how early violence exposures relate to sexual violence perpetration during early adolescence. 相似文献
107.
Casandra Elena Harper 《Race Ethnicity and Education》2016,19(5):927-949
This longitudinal study of 1101 multiracial college students from 105 US institutions reveals the dynamic racial designation choices of participants as freshmen and as seniors, as 56% of the sample gave inconsistent responses about their race over time. Logistic regressions predicting a multiracial designation choice as seniors reveal the pre-college and college factors associated with developing or maintaining this choice over the span of college. Experiences such as living on campus, joining a racial or ethnic student organization, taking an ethnic studies course, participating in a racial awareness workshop, and discussing issues of political or personal importance were each significant predictors of the racial identification patterns examined in this study. The results of this study offer evidence of the need to consider longitudinal changes in students’ race and the ways in which students’ racial identification preferences change between the time they enter and leave college. 相似文献
108.
Pamela‐Zoe Topalli Niina Junttila Emmanuel O. Acquah Koen Veermans Pivi M. Niemi 《Journal of research on adolescence》2020,30(1):109-125
We examined the perceptual discrepancy profiles between self‐ and peers, and self‐ and teacher evaluations of adolescents’ social competence (SC) and the interrelations of these profiles with self‐reported depressive symptoms. The participants were 390 Finnish lower secondary school pupils. Latent profile analysis revealed five classes of discrepancy profiles; adolescents with congruent perceptions, quite congruent perceptions, and positively discrepant perceptions of SC reported lower scores of depressive symptoms, whereas those with negatively and extremely positively discrepant perceptions of SC reported the highest scores of depressive symptoms. The larger the discrepancy between self‐ and others’ evaluations of SC were, the more depressive symptoms were reported. The results indicate that interventions designed to mitigate depression need to be tailored to individual needs. 相似文献
109.
Karin S. Frey Zoe Higheagle Strong Adaurennaya C. Onyewuenyi Cynthia R. Pearson Brendan R. Eagan 《Journal of research on adolescence》2020,30(3):633-650
African American, European American, Mexican American, and Native American adolescents (N = 270) described how they felt and appraised their own actions in response to a peer's victimization. Analyses compared times they had calmed victim emotions, amplified anger, avenged, and resolved conflicts peacefully. Adolescents felt prouder, more helpful, more like a good friend, and expected more peer approval after calming and resolving than after amplifying anger or avenging peers. They also felt less guilt and shame after calming and resolving. Avenging elicited more positive self‐evaluation than amplifying. Epistemic network analyses explored links between self‐evaluative and other emotions. Pride was linked to relief after efforts to calm or resolve. Third‐party revenge reflected its antisocial and prosocial nature with connections between pride, relief, anger, and guilt. 相似文献
110.
Do Siblings Matter Independent of Both Parents and Friends? Sympathy as a Mediator Between Sibling Relationship Quality and Adolescent Outcomes
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James M. Harper Laura M. Padilla‐Walker Alexander C. Jensen 《Journal of research on adolescence》2016,26(1):101-114
The study explored whether sibling affection and hostility were longitudinally associated with adolescents' prosocial, externalizing, and depressive behaviors, after controlling for parent–child and best friend relationship quality. Sympathy was examined as a possible mediator. Three hundred and eight randomly selected families completed Waves 3, 4, and 5 of the Flourishing Families Project. Multiple group comparison via structural equation modeling compared differences between girls and boys. Sibling affection (T3) was positively associated with adolescents' sympathy (T4) and prosocial behavior (T5). Sibling hostility (T3) was positively associated with adolescents' depression (T5) and externalizing behavior (T5) (for boys only), even after controlling for parent and friend relationships. Discussion focuses on the unique role of the sibling relationship on adolescent development. 相似文献