Performance models for unreliable flexible manufacturing systems

This paper deals with the analysis and application of queueing models for single and multi stage flexible manufacturing systems that are subject to resource failure. Exact results are derived for the single stage queueing system. Two approximations are presneted for the multi stage queueing system as a closed network. We validate the approximations by comparing their performance estimates against the exact global balance solution.     

Working Together to Improve Accessibility: Consortial E-Resource Accessibility and Advocacy

Abstract

In 2015, the Big Ten Academic Alliance (BTAA) Libraries formed the BTAA Library E-Resource Accessibility Group. This group, which consists of members from each Big Ten library and the BTAA Library Initiatives staff, was charged with creating boilerplate accessibility license language for vendor contracts, as well as collectively funding high level accessibility testing of e-resources and posting these publicly for all libraries and users. Since the creation of the group, about 50 databases have been tested and accessibility license language has been created that can be used and adapted by anyone. In 2019, the group welcomed another consortia, the Association of Southeastern Research Libraries (ASERL), to be partners in this work, renaming themselves the Library Accessibility Alliance. This paper examines the mission, accomplishments, and new partnership in more depth while also discussing the need for focused efforts to help ensure accessible e-resources.     

The horizons of technological control: automated surveillance in the New York subway

Surveillance technologies may be capable of monitoring a domain, but they need a sufficiently orderly domain to monitor. This article examines the secretive effort to institute artificial-intelligence-based ‘smart surveillance’ in the New York subway, using object- and pattern-recognition algorithms to identify dangerous activities in video feeds, such as a person abandoning a package. By considering the necessary preconditions for computer vision systems to recognize patterns and objects, I show how smart surveillance was challenged by the lack of visual and social uniformities necessary for smart surveillance systems to make its fine-toothed distinctions. In spite of vast resources and involvement of a major military contractor, the project was eventually deemed a failure. Although problems in computer vision are being incrementally solved, those improvements do not yet add up to a holistic technology capable of parsing the real-world ambiguity of open-ended settings which do not meet the assumptions of the detection algorithms. In the absence of technologies that can handle the actual mess, the world itself must cooperate, but it often does not. The article demonstrates the importance of looking beyond the claims of technical efficacy in the study of security and surveillance to discover how technologies of inspection and control actually work, as a means to cut through the heavy rhetorical packaging in which they are sold to their publics.     

Variables Affecting Readiness to Benefit From Career Interventions

This article identifies and briefly describes the broad range of variables that may influence clients’ readiness to benefit from career interventions. The article also discusses consequences of low readiness for effective use of career interventions and addresses implications for practice as well as for future research. Variables contributing to low readiness for effective use of career interventions include personal characteristics and circumstances; knowledge of self, options, and decision making; and prior experience with career interventions. Consequences of low readiness for using career interventions include premature disengagement, negative perception of skills and interests, selective acquisition of incomplete information, premature choice foreclosure, protracted exploration, dependent decision‐making style, and poor evaluation of options.     

Assessing MSW Students’ Integrated Behavioral Health Skills Using an Objective Structured Clinical Examination

Within the last decade, there has been a significant shift in the field of social work toward competency-based education. This article details the use of the Objective Structured Clinical Examination (OSCE) Adapted for Social Work Performance Rating Scale. We used the measure to evaluate specific practice competencies among students (n=33) participating in a professional workforce development program, funded by the Health Resources Services Administration Behavioral Health Workforce Education and Training for Professionals. We report on students’ performance and their views of the OSCE as an assessment measure and learning experience, and on the interrater reliability and consistency of the OSCE. Results can be used by other social work programs to inform the use of OSCEs to facilitate competency-based assessment.     

Incorporating Prototyping and Iteration Into Intervention Development: A Case Study of a Dining Hall–Based Intervention

Abstract

Background: Previous research from the fields of computer science and engineering highlight the importance of an iterative design process (IDP) to create more creative and effective solutions. Objective: This study describes IDP as a new method for developing health behavior interventions and evaluates the effectiveness of a dining hall–based intervention developed using IDP on college students’ eating behavior and values. Participants: participants were 458 students (52.6% female, age = 19.6 ± 1.5 years [M ± SD]). Methods: The intervention was developed via an IDP parallel process. A cluster-randomized controlled study compared differences in eating behavior among students in 4 university dining halls (2 intervention, 2 control). Results: The final intervention was a multicomponent, point-of-selection marketing campaign. Students in the intervention dining halls consumed significantly less junk food and high-fat meat and increased their perceived importance of eating a healthful diet relative to the control group. Conclusion: IDP may be valuable for the development of behavior change interventions.     

Creating Welcoming Spaces for Lesbian,Gay, Bisexual,and Transgender (LGBT) Patients: An Evaluation of the Health Care Environment

ABSTRACT

Health outcomes are affected by patient, provider, and environmental factors. Previous studies have evaluated patient-level factors; few focusing on environment. Safe clinical spaces are important for lesbian, gay, bisexual, and transgender (LGBT) communities. This study evaluates current models of LGBT health care delivery, identifies strengths and weaknesses, and makes recommendations for LGBT spaces. Models are divided into LGBT-specific and LGBT-embedded care delivery. Advantages to both models exist, and they provide LGBT patients different options of healthcare. Yet certain commonalities must be met: a clean and confidential system. Once met, LGBT-competent environments and providers can advocate for appropriate care for LGBT communities, creating environments where they would want to seek care.     

Reducing depression among mothers in a residential treatment setting: building evidence for the PST4PPD intervention

ABSTRACT

Objective

The prevalence of postpartum depression (PPD) nearly doubles among low-income mothers in the United States compared to the general population. Problem Solving Therapy (PST) is an effective treatment for populations of low-income women and more accessible than costly, long term interventions. This study aimed to assess the feasibility of implementing a problem-solving-focused intervention originally designed for home visits. Method: This study was conducted in a residential treatment facility (RTF). A chemical dependency counselor delivered the 5-session intervention named “PST4PPD”. A one-group pretest/posttest design was adopted. The standardized tools: Edinburgh Postnatal Depression Scale (EPDS) and Patient Health Questionnaire (PHQ-9) were used to assess depressive symptoms. The New General Self-Efficacy Scale (NGSE) was used to measure self-efficacy. Results: Among the 41 eligible women, 90% (n = 37) completed the intervention. The research found statistically significant decreases in depression (EPDS t(36) = 6.70, p <.001; PHQ-9 t(36) = 4.67, p <.001) and increases in self-efficacy (NGSE t(36) = ?2.41, p =.02). Conclusions: This pilot study finds positive results and feasibility of “PST4PPD”, a community-based, affordable intervention to lower symptoms of postpartum depression. Recommendations for future research and practice, including suggestions for engaging and retaining low-income mothers in PPD interventions, are discussed.