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81.
This study examines factors associated with the high attrition rate in treatment programs for men who batter. In accord with past research, we expected demographic variables of age, race, employment status, relationship status, and socioeconomic status to predict attrition. We also hypothesized that attitudinal and personality variables, as well as contextual/program variables, might account for attrition more parsimoniously. Specifically, we hypothesized that attrition would be predicted by frequency and severity of violence, denial of a problem with violence, rigidity of thinking, low levels of self-disclosure, and higher anxiety and constriction in social situations. In addition, we predicted attrition would relate to dependency, maladaptive personality styles, and expectations regarding group counseling (e.g., whether treatment is perceived as aversive). Finally, we proposed that attrition would relate to whether batterer participation in treatment was self-motivated or the result of external pressures. Participants were 61 men enrolled in a batterer treatment program in a mid-sized city. Analyses of variance and discriminant analyses indicated that program attrition was unrelated to demographic, attitudinal, or personality variables. Only the contextual/program variables of mileage traveled to attend and external monitoring of attendance significantly differentiated treatment rejecters, drop-outs, and treatment continuers. Findings are discussed with regard to intrinsic and extrinsic motivational factors. Future directions for exploration are discussed.  相似文献   
82.
The location, type, and local mechanism of tibial shaft fracture were determined for 66 drivers injured in frontal automobile crashes. The results from the analyses showed that the distal third is the most common fracture location (p<0.05) and that bending is responsible for the majority of these fractures regardless of the fracture site. These findings indicate that the current injury criterion for predicting the occurrence of tibial shaft fracture in crash tests with anthropometric test devices is appropriate in terms of accounting for the primary mechanism of fracture but that increased protective effectiveness could be achieved by redefining the criterion for the distal third shaft section instead of the currently specified mid-shaft section of the tibia.  相似文献   
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The overwhelming majority of cases of acute subdural hematoma in the forensic setting occur as a result of head trauma. We report a case of sudden unexpected death in a middle-aged woman with a history of arachnoid cyst who had sudden spontaneous onset of severe headache that was rapidly followed by collapse and death. A postmortem multiple-slice computed tomographic scan showed a large acute subdural hematoma associated with hemorrhage into an arachnoid cyst. Subdural hemorrhage is an uncommon but well-described complication of an arachnoid cyst.  相似文献   
84.

Research in developmental psychology highlights youth’s self-schemas as one possible pathway to improve adolescents’ functioning and promote positive developmental outcomes. Despite this, the trajectory of positive and negative self-schemas is relatively understudied. This study addresses this limitation by empirically examining the trajectory of self-schemas in a community sample of 623 youth (M?=?13.04 years; 54% female; 49% African American, 4% Biracial, 47% European American) who were followed over a seven-year period. Caregivers completed measures of parenting practices, maternal rumination and negative inferential style, and adolescents completed a computerized behavioral task assessing self-schemas (i.e., mental frameworks that guide attention, interpretation, and memory of one’s experiences). Multilevel growth curve modeling results demonstrated a quadratic slope for negative self-schemas and no mean-level change for positive self-schemas. These trajectories did not vary by gender or racial group. However, parenting factors differentially influenced the trajectories. Specifically, higher levels of parental involvement at baseline, or an active interest and engagement in a child’s experiences and activities, related to lower levels of negative self-schemas during adolescence. Additionally, higher levels of parental rumination and parental negative control at baseline related to lower levels of youth positive self-schemas at baseline. These findings contribute to models of youth cognitive development.

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85.
We examine the ability of pre-election polls to aggregate information about voter preferences. We show that if the electorate is small and voting costs are negligible, then an equilibrium exists in which citizens report their true political preferences. If the electorate is large or voting costs are significant, however, then no such equilibrium exists because poll respondents possess incentives to influence the voting behavior of others by misreporting their true preferences. We find that when a truthful equilibrium does exist, a poll can raise expected welfare by discouraging turnout among members of the minority.  相似文献   
86.
From 2000-2005, Somerville, MA, experienced a number of youth overdoses and suicides. The community response followed CDC recommendations for contagion containment. A community coalition, Somerville Cares About Prevention, became a pivotal convener of community partners and a local research organization, the Institute for Community Health, provided needed expertise in surveillance and analysis. Mayoral leadership provided the impetus for action while community activists connected those at risk with mental health resources. Using a variety of data sources (including death certificates, youth risk surveys, 911 call data, and hospital discharges) overdose and suicide activity were monitored. Rates of suicide and overdose for 10-24-year-olds were higher than in previous years. Using case investigation methods, the majority of suicide victims were found to be linked through common peer groups and substance abuse. Subsequent community action steps included: a community-based trauma response team, improved media relationships, focus groups for suicide survivors, and prevention trainings to community stakeholders. Youth suicide and overdose activity subsided in May of 2005. The community partnerships were critical elements for developing a response to this public health crisis. This collaborative approach to suicide contagion used existing resources and provides important lessons learned for other communities facing similar circumstances.  相似文献   
87.
With the development of highly sensitive drug testing technologies that can detect a minute quantity of a prohibited substance in an athlete's body, accidental contamination through contact with publicly circulated materials can more readily result in a "positive" reading. To discharge the burden of a positive finding, the athlete must show the "factual circumstances" in which the prohibited substance entered his/her system. In cases of accidental contamination, the athlete generally cannot even know how it occurred, as there are many known and unknown possible sources of contamination. When an athlete does give an account, it cannot generally be proven or disproven. Outside the realm of sports anti-doping, the use of scientifically established thresholds for drug testing is standard practice. Basic logic dictates that thresholds would enable one to differentiate between relevant and irrelevant amounts in the context of a possible sports doping offence. Such a threshold should be functionally motivated, i.e., enable the differentiation between relevant and irrelevant quantities in the context of a possible doping offence, rather than based on instrument performance limits.  相似文献   
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