Weak and strong laws of large numbers for coherent lower previsions

We prove weak and strong laws of large numbers for coherent lower previsions, where the lower prevision of a random variable is given a behavioural interpretation as a subject's supremum acceptable price for buying it. Our laws are a consequence of the rationality criterion of coherence, and they can be proven under assumptions that are surprisingly weak when compared to the standard formulation of the laws in more classical approaches to probability theory.     

Critical success factors of medical technology supply chains

This paper investigates Critical Success Factors that affect the performance of organizations involved in Medical Technology supply chains (MTSCs) in Germany. The Medical Technology sector in Germany is considered an innovative, fast-growing and promising industry, being third behind the USA and China as the biggest market in the world, worth 29.9 billion euros in 2017. MTSCs in this country are under pressure from health service funding and cheaper imports, primarily from China. Consequently, supply chain success is of high importance and OEM operational improvements are critical. This exploratory study involved a multiple case study approach where 15 OEMs within German MTSCs were investigated. Following within-case and cross-case analysis, empirical results led to the development of testable propositions, which constitute a foundation for further research investigation. The findings show that there are six, prioritized Critical Success Factors for MTSCs that include sales and operations planning, product development process and quality and compliance. These findings challenge existing assumptions about Critical Success Factors within MTSCs, providing practitioners with strategies showing that re-prioritized CSFs should improve the operational performance of OEMs.     

Employer‐oriented labour market policies in Sweden: Creating jobs and the division of labour in the public sector

In many European countries, greater importance is accorded to labour market policies in which employers are involved in activating unemployed people. Such employer‐oriented policies target employers’ demand for labour and attempt to influence their willingness to hire, train or guide (often disadvantaged) unemployed groups. Using data from a qualitative interview study of an employer‐oriented programme in a medium‐size city in Sweden, the present article aims to develop knowledge about how these policies are used to influence employers to hire unemployed workers and how jobs created in this context differ from regular jobs. The article argues that creating jobs through new arrangements for the division of labour, with the promise of relieving regular staff of unskilled tasks, may influence employers’ willingness to hire the unemployed when used alongside other kinds of policy instruments. However, the article also shows that this new division of labour, with programme participants performing mainly unskilled tasks, has been difficult to realize, as new staff gradually come to perform an increasing number of regular working tasks.     

Anthropometric data of adult wheelchair users for Mexican population

The aim of the study was to obtain anthropometric data of adult wheelchair users at Mexico. This study count with 108 disabled people (56 men and 52 women) using the wheelchair and having the upper extremities sufficiently efficient to perform professional activities. The subjects were aged 18-60. From the measurements obtained, it can be said that in each of these measures was observed that men have larger dimensions than women, except for body depth, in which women had a slightly greater difference. When comparing the data in this study against other studies it shows that there is a significant difference between the averages of these studies. Similar results were obtained when comparing our data against data of standard population. Anthropometric data obtained through this study appear to be the only of this kind in Mexico and showed significant differences between measures of disabled persons and standard persons. the use of these data may be helpful for the proper design of workstations designed for use by adults who use.     

A study of automotive workers anthropometric physical characteristics from Mexico Northwest

Due to the lack of anthropometric information in northwest Mexico, we did an anthropometric study that represents the population physical characteristics and that is reliable for the design or redesign of workstations. The study was divided in two phases. The first one was the anthropometric study of 2900 automotive industry workers in northwest of Mexico. The study includes 40 body dimensions of 2345 males and 555 females personalized to be used in future researches. Second phase includes compared anthropometric characteristics of population reported in four Mexican studies and a Colombian study against the current study. Benefits of this project are: a reliable database of anthropometric characteristic of automotive industry population for workstations design or redesign that match with the users, increase product quality and reduce economic, medical and union complains.     

Ergonomics principles to design clothing work for electrical workers in Colombia

The recent development of the Colombian legislation, have been identified the need to develop protective clothing to work according to specifications from the work done and in compliance with international standards. These involve the development and design of new strategies and measures for work clothing design. In this study we analyzes the activities of the workers in the electrical sector, the method analyzes the risks activity data in various activities, that activities include power generation plants, local facilities, industrial facilities and maintenance of urban and rural networks. The analyses method is focused on ergonomic approach, risk analysis is done, we evaluate the role of security expert and we use a design algorithm developed for this purpose. The result of this study is the identification of constraints and variables that contribute to the development of a model of analysis that leads to the development the work protective clothes.     

The mixture of left–right truncated normal distributions

This paper introduces the mixture of left–right truncated normal distributions, from the spreads between bid and ask prices, as a statistical model for handle non-normality of asset price returns. It has been proved that there is only one maximum for the likelihood function of the new model.     

Dimensions of ethnic identity as protective factors for substance use and sexual risk behaviors in African American college students

Objective: To examine ethnic identity and ethnic socialization as potential protective factors for risk behaviors among US college students. Participants: Participants were 398 African American and Afro-Caribbean students recruited from 30 colleges and universities during September 2008–October 2009. Methods: Data on hazardous alcohol use, substance use, sexual behaviors, ethnic identity, and ethnic/racial socialization were collected. Hierarchical linear and negative binomial regression analyses were conducted to determine the degree to which ethnic identity and ethnic/racial socialization predicted the risk behaviors. Results: Ethnic Identity affirmation, belonging, and commitment (EI-ABC) significantly predicted lower substance use and hazardous alcohol use. Ethnic/racial socialization was not a significant predictor of substance use or sexual risk behaviors. Conclusions: Components of ethnic identity are potentially protective against alcohol and substance use behaviors. Additional research is recommended to determine effective intervention strategies.     

Moral education as intercultural moral education

In a diverse country such as Peru, moral education should reflect social, cultural, political and spiritual dilemmas of both indigenous and non-indigenous peoples and their communities. To promote understanding and respect amongst people from different sociocultural backgrounds, moral education should encourage a dialogue between indigenous values and mainstream hegemonic values. In this article, we argue for the need to conceptualise moral education as intercultural. Against a common view that portraits indigenous people as incommensurable, that is, as trapped in their own radically different moral perspective, our own research in Shipibo-Konibo and Asháninka communities show that indigenous people display a moral point of view when analysing cultural traditions and practices. This moral point of view appears intertwined with their cultural values and ethnic identities and allows intercultural dialogue. In this vein, we argue for the need to incorporate intercultural moral conflicts and dilemmas into moral education to promote understanding and respect for others.     

Inducing efficient conditional cooperation patterns in public goods games, an experimental investigation

This study analyses the behavior in a repeated public goods game when subjects know about the possibility of existence of strict conditional cooperators. We employed a baseline treatment and a threat treatment in which subjects are informed about the possibility of being in a group together with automata playing a grim trigger strategy. We conjecture the resulting game allows for almost fully efficient outcomes. Contributions in the threat treatment increase by 40% before a surprise restart, and by 50% after the surprise restart. In line with the grim trigger strategy subjects contribute either all or nothing in the threat treatment.