Assembly Line Balancing Using Genetic Algorithms with Heuristic-Generated Initial Populations and Multiple Evaluation Criteria*

We use genetic algorithms (GA) to solve the assembly line balancing (ALB) problem. Inparticular, we show how this technique can be used to generate feasible line balances, improve upon solutions obtained by other heuristics reported in the literature, and utilizeany one or more evaluation criteria that can be expressed in functional form. The procedure is demonstrated with two examples: (1) intimating the improvement of heuristic-generated ALB solutions by including them in the GA initial population, and (2) the possibility of balancing assembly lines with multiple criteria and side constraints. These examples suggest that GA can be a powerful tool in ALB. To investigate the utility of GA on single-criterion problems, an experiment is conducted that compares both the GA approach and conventional heuristics. Results indicate that the GA solutions are significantly improved over the heuristic solutions under the conditions studied. It is also found that the presence of heuristic-generated conventional solutions in the GA initial population leads to statistically preferred results.     

Suicide prevention and intervention with young people in foster care in Canada

Given the history of turmoil in their lives, foster children and young people coming into care are particularly at risk of suicide. Whether a crisis is successfully prevented, or treated and transcended, depends upon the ability of foster parents and agency staff members to understand the nature of the situation and to work together in dealing with it.     

Episodic Cessation of Gambling: A Numerically Aided Phenomenological Assessment of Why Gamblers Stop Playing in a Given Session

The topic of permanent cessation of gambling behavior has received increased attention as the rates gaming (and pathology) increase with accessibility and legalization. Despite this increased attention there is a paucity of research on why people stop gambling in a given session, i.e. episodic cessation. We propose that the study of first-person experiential accounts of why gamblers stopped engaging in play within a given session will shed light on the progression and maintenance of wagering behavior. Using numerically aided phenomenology, we systematically examined accounts of episodic cessation. In doing so, we were able to identifying recurrent themes and then clustering these accounts according to similarities in theme profiles. People reported that episodic cessation occurred because they had lost all their money or because they were forced to (Cluster I), a sufficient amount of money had been won or lost (Cluster II), and a priori limits on wins or losses had been reached (Cluster III). As predicted, gamblers with maladaptive reasons for episodic cessation (Cluster I and II) reported more illusory perceptions of control and negative attitudes toward treatment seeking than those who engage in responsible gambling behavior (Cluster III). Moreover, illusions of control mediated the effect of cluster membership on attitudes toward treatment seeking. The findings of the present research help to integrate recent studies of gambling progression and maintenance.     

Can self-regulation deliver an ethical commercial literature? A critical reading of the “Good Publication Practice” (GPP3) guidelines for industry-financed medical journal articles

Much medical journal literature is developed by the pharmaceutical and device industries, sometimes with assistance from marketing agencies, writers, and academics. This literature is vulnerable to commercial bias. The publications trade issues self-regulatory ethical guidelines for its production, called “Good Publication Practice” (GPP). I evaluated the most recent iteration, GPP3. The most progressive recommendations in GPP3 call for complete publication of all clinical trials, and full data sharing. GPP3 makes numerous further recommendations more directly concerning the publications trade. Many of these repeat existing editorial requirements, chiefly those of the International Committee of Medical Journal Editors, but readers are not adequately advised of this. Despite its emphasis on ethical and transparent reporting, the detail of GPP3 enables continued use of academic medical literature for drug marketing, on the basis of commercial steerage of content, coupled with the attribution of published articles to collaborating academic authors. As such, GPP3 provides a de facto manual for how marketing through academic journal content can be conducted in compliance with contemporary editorial standards. Consequently, the self-regulatory GPP3 guidelines are not a sound basis for the production of unbiased industry-financed medical journal literature. I suggest improvements for future iterations of these influential guidelines.     

Imperial culture and cultural imperialism

During the period of colonialism the imperial powers had to create a situation in which the inevitability and necessity of subjugation was felt. Colonised peoples were presented as children. Indigenous knowledge was considered inferior to the knowledge of Europeans. European academic diplomas were considered as more useful than vocational training. Still it is a common occurrence in many countries throughout the world to use external exams of the old colonial power. The number of persons with diplomas exceeds the places vacant. Stereotypes of the colonial past still carry weight. UK history teaching is still primarily Anglo‐centric. In the media, developing countries only ever figure in the news when disaster strikes. The new form of cultural imperialism: the sheer volume of television programmes produced in the USA, with all of its assumptions and values, may be more dangerous than any which existed in colonial times.