A Bayesian Approach for Analyzing Results of Vehicle Collision Tests

Certain motor vehicle safety standards stipulate a collision test speed and a set of performance criteria that vehicles must satisfy during or after the collision test. For example, Federal Motor Vehicle Safety Standard 301 requires a 30 mile per hour (mph) barrier collision and specifies a certain maximum allowable limit on the total spillage of fuel. Vehicle designs are required to meet this standard; however, when collision tests are conducted at speeds higher than the standard, vehicles do not always satisfy the performance criteria. This paper develops a mathematical model for estimating the probability of meeting the standard by using a Bayesian framework to incorporate engineering judgment with collision test results. The model is based on the idea that there are random features to a vehicle's ability to meet performance standards in a collision, especially at such elevated speeds. Example calculations are included to illustrate the estimation of the probability of meeting the standard and to compare it with a maximum likelihood approach.     

Open Order Rescheduling in Job Shops with Demand Uncertainty: A Simulation Study

This paper addresses the problem of open order rescheduling in a job shop. Results are reported of experiments conducted in a simulation model of an 8-machine job shop. Four different order updating policies are examined. The due-date process is modeled to include several realistic features about the pattern of due-date variability. These features are parameterized and tested at several levels. Tardiness results indicate that open order rescheduling is beneficial only when allowances are loosely set. The results indicate that inventory performance is improved by order rescheduling, particularly in cases when due dates are revised to earlier times than originally forecast.     

Family violence in gambling help-seeking populations

Elevated rates of family violence among treatment-seeking problem gamblers compared to general population estimates have been reported in Spain, Canada and Australia. This study examined the occurrence of family violence among 454 problem gambling help-seeking clients (370 gamblers, 84 affected others) recruited through 3 national gambling treatment services in New Zealand. Measures used were the Problem Gambling Severity Index, and a modified version of the HITS Scale which assessed physical, emotional, verbal and sexual abuse. Past-year family violence among gamblers in this sample was 46.8% for victimization, 41.2% for perpetration and 55.0% for any form of family violence. Among affected others the occurrence was 65.5% for victimization, 57.1% for perpetration and 71.4% for any form of violence. The most common type of violence was verbal intimate partner violence. Affected others and women gamblers reported higher rates of violence victimization and perpetration. These findings underscore the importance of screening gambling help-seeking clients for family violence, and the development of prevention and treatment programmes to address violence in this population, with particular attention to affected others and women gamblers. Future research should assess coercive control and the gendered nature of family violence among problem gambling help-seekers.     

Relearning to Live Life Without Substances: A Grounded Theory of the Impact of Group Physical Exercise on Sobriety

Research has found significant benefits in using exercise as an adjunct treatment for substance use. This study used a qualitative grounded theory approach to explore the role of group exercise on maintaining sobriety. Sixteen persons (13 White men and 3 White women, age M = 31.81, SD = 8.23), recruited from a substance use recovery group that meets at a gym in an urban area in the Southeast part of the United States, were individually interviewed. Data were analyzed using Charmaz’s (2006) constructivist grounded theory strategies. Central themes revealed a parallel process between the steps taken to seek sobriety and those taken to maintain sobriety. The driving forces of sobriety success in both was 12 steps and group exercise programming that included elements of mentorship, structure, accountability, and fellowship or community. This study supported the use of physical group exercise as an adjunct treatment option for substance use treatment.     

Synthetic double sampling s chart

This study proposes a synthetic double sampling s chart that integrates the double sampling (DS) s chart and the conforming run length chart. An optimization procedure is proposed to compute the optimal parameters of the synthetic DS s chart. The performance of the synthetic DS s chart is compared with other existing control charts for monitoring process standard deviation. The results show that the synthetic DS s chart is more effective for detecting increases in the process standard deviation for a wide range of shifts. An example is provided to illustrate the operation procedure of the synthetic DS s chart.     

Confidence Corridors for Multivariate Generalized Quantile Regression

We focus on the construction of confidence corridors for multivariate nonparametric generalized quantile regression functions. This construction is based on asymptotic results for the maximal deviation between a suitable nonparametric estimator and the true function of interest, which follow after a series of approximation steps including a Bahadur representation, a new strong approximation theorem, and exponential tail inequalities for Gaussian random fields. As a byproduct we also obtain multivariate confidence corridors for the regression function in the classical mean regression. To deal with the problem of slowly decreasing error in coverage probability of the asymptotic confidence corridors, which results in meager coverage for small sample sizes, a simple bootstrap procedure is designed based on the leading term of the Bahadur representation. The finite-sample properties of both procedures are investigated by means of a simulation study and it is demonstrated that the bootstrap procedure considerably outperforms the asymptotic bands in terms of coverage accuracy. Finally, the bootstrap confidence corridors are used to study the efficacy of the National Supported Work Demonstration, which is a randomized employment enhancement program launched in the 1970s. This article has supplementary materials online.     

A Multi-Dimensional Conceptual Framework for Trauma-Informed Practice in Addictions Programming

Previous research has conceptualized trauma-informed practice in relation to five key values: safety, trust, choice, collaboration, and empowerment. This research identifies key organizational, programmatic, and interpersonal characteristics in community-based residential addictions treatment programming that exemplify each of these principles. Utilizing qualitative research methods, involving open-ended, one to one interviews with clients in residential substance misuse treatment (n = 41), respondents identified the importance of experiencing “safety” in relation to physical safety, confidentiality, reassurance, rule enforcement, and peer relationships. “Trust” was manifested in sharing, staff availability, nonjudgmental interactions, positive relationship dynamics, and caring. “Choice” was articulated in relation to individual needs, participation, opportunities, and focus of efforts. “Collaboration” was characterized in relation to opportunities for feedback, planning, goal setting, specificity, and support. Finally, “empowerment” was characterized by comfort in sharing, trigger management, trauma awareness, and understanding. The findings provide a conceptual framework for a trauma-informed social services organizational practice environment. Findings can inform adaptations to social service delivery processes and programs to become aligned with the values of trauma-informed practice. Future research can build on this framework by testing the study findings with quantitative methods along with replicating current methods in other social service delivery sectors.     

How can context and discourse affect teachers’ and mental health professionals’ interactions with adults with mental illness?

Patients with severe mental illness may have needs different from those of patients with more limited illnesses and might benefit from other types of intervention than traditional treatment. We interviewed health care professionals from two open, short-term psychiatric wards and teachers from two schools for adults with psychiatric diagnoses. The focus was to explore how differences in contextual factors such as time, tasks, and organizational demands might affect the actions and attitudes of health care professionals and teachers, as well as the potential consequences for patients and students. Data were collected through qualitative interviews. Participants included 14 health care professionals and 14 teachers. The informants worked with patients and students with similar diagnoses and illness durations. All interviews were conducted during the informants’ work time. Findings and interpretations showed that both teachers and health care professionals were engaged in their work and in the wellbeing of students and patients. However, they described marked differences in practice, including the amount of time spent with students/patients, the organization of their work, main tasks, amount of control over their tasks, and social structure. These differences seemed to affect relationships with students/patients, attitudes toward students/patients, norms and values, and opportunities for patient empowerment. Our findings suggest that while existing psychiatric health care might be appropriate for limited short-term problems such as single-episode depression, a model with a supportive environment, based on stable relations and possibility for learning, may improve personal development and mental health for persons with severe mental illness and disturbances in self-experience.     

Examining implementation and preliminary performance indicators of veterans treatment courts: The Kentucky experience

Veterans’ Treatment Courts (VTCs) are posited as a solution to offer rehabilitation for veterans involved in the criminal justice system. Despite the pervasive implementation of VTCs, there is little research focused specifically on VTC implementation and outcomes, which are based on other problem-solving court models such as drug court. The current study presents qualitative process evaluation data from key stakeholders (n = 21) and veteran participants (n = 4) to show accomplishments, challenges, and lessons learned during first-year implementation at two VTC sites. Quantitative performance data is also presented on veteran participants (n = 19) served during the first year to show: types of services, monitoring, judicial interaction, sanctions/therapeutic responses, and rewards, as well as preliminary data on recidivism. Qualitative data, from both key stakeholders and veteran participants, suggests that offering rehabilitation via various program components, services/referrals, and accountability are critical to the success of the VTC. Data also provides valuable lessons learned for VTC implementation including communication, collaboration, information/protocols, and resources. Performance data shows that a variety of services are utilized and that frequent judicial interaction, drug testing, and sanctions are cornerstones of the VTC. Implications and future directions for research are discussed.     

美丽乡村建设中村民获得感调查报告

青浦美丽乡村建设除了项目建设的一般意义之外,还具有两个特别的意义:一是生态保护的意义,它不是一个单纯的施惠过程,而是一次共享发展的机会;二是社会综合治理意义,它是一次治理社会管理顽疾的契机,可以唤起村民的公共意识,共同克服生活陋习,集体守望美丽家园.这对整体提升区域文明程度和市民幸福感,进而培育向上向善的社会力量具有重要作用.