How the size of a coalition affects its chances to influence an election

Since voting rules are prototypes for many aggregation procedures, they also illuminate problems faced by economics and decision sciences. In this paper we are trying to answer the question: How large should a coalition be to have a chance to influence an election? We answer this question for all scoring rules and multistage elimination rules, under the Impartial Anonymous Culture assumption. We show that, when the number of participating agents n tends to infinity, the ratio of voting situations that can be influenced by a coalition of k voters to all voting situations is no greater than $D_{m} \frac{k}{n}Since voting rules are prototypes for many aggregation procedures, they also illuminate problems faced by economics and decision sciences. In this paper we are trying to answer the question: How large should a coalition be to have a chance to influence an election? We answer this question for all scoring rules and multistage elimination rules, under the Impartial Anonymous Culture assumption. We show that, when the number of participating agents n tends to infinity, the ratio of voting situations that can be influenced by a coalition of k voters to all voting situations is no greater than , where D _m is a constant which depends only on the number m of alternatives but not on k and n. Recent results on individual manipulability in three alternative elections show that this estimate is exact for k=1 and m=3.

Arkadii SlinkoEmail:

     

Implementation of an ergonomics program for the welding department inside a car assembly company

The premise for this project is to implement an ergonomics program for the welding department of a car assembly company, considering that this area represents the highest occupational risk in relation to musculoskeletal injuries. The project also allows the demonstration of the different implementation processes of an ergonomics program; it also permits the determination of individual risks faced by workers of the welding department, and finally gives a chance of improving common injuries using the sentinel system. The main challenge is to reduce musculoskeletal injuries and absenteeism among welders through actions implemented by the ergonomics program.     

Contextual influence on evaluation capacity building in a rapidly changing environment under new governmental policies

Evaluation capacity building (ECB) is a context-dependent process. Contextual factors affecting ECB implementation have been explored theoretically and practically, but their influence within a changing environment has seldom been discussed. This study examined essential context-sensitive parameters, particularly those involved in implementing new governmental policies regarding higher education. Taiwan was used as a case study for exploring the effect of contextual change on ECB attributes from the perspectives of training receivers and providers. Surveys and interviews were used for data collection and importance–performance analysis was applied for data analysis. Four prominent features were identified. First, the ECB attributes perceived as important by receivers were performed adequately, whereas those perceived as less important were performed less well. Second, under new policies, training provider designed training covering a wide range of ECB, whereas receivers focused on those can be directly applied in evaluation process. Third, in a small education system such as Taiwan’s, the complexity of peer review is high and ethical issues become important. Fourth, because the evaluation structure has been changed from single- to dual-track, receivers expect more training for institution staff, whereas providers insist on hierarchical training. Aligning ECB supply and needs is paramount for adaptation to new policies.     

Cognitively automated assembly processes: a simulation based evaluation of performance

The numerical control of an experimental assembly cell with two robots--termed a cognitive control unit (CCU)--is able to simulate human information processing at a rule-based level of cognitive control. To enable the CCU to work on a large range of assembly tasks expected of a human operator, the cognitive architecture SOAR is used. The CCU can plan assembly processes autonomously and react to ad-hoc changes in assembly sequences effectively. Extensive simulation studies have shown that cognitive automation based on SOAR is especially suitable for random parts supply, which reduces planning effort in logistics. Conversely, a disproportional increase in processing time was observed for deterministic parts supply, especially for assemblies containing large numbers of identical parts. In this contribution, the effect of phase-shifts in deterministic part supply is investigated for assemblies containing maximal different parts. It can be shown that the concept of cognitive automation is as well suitable for these planning problems.     

Macroergonomic analysis of an assembly sector of a furniture company

From of Macroergonomic Analysis of Work were diagnosed the main ergonomics demands in a furniture company in the city of Cambé, Paraná. Through this method we could identify the most problematic points of the analyzed environment for posterior solutions of improvement with the objective of increasing the working and psychological quality of the employees, motivating their good performance and satisfaction.     

Ergonomic evaluation of a situation of coexposure to solvents and noise in a printing of flexible packaging

The purpose of this paper is to present an ergonomic evaluation of a situation of co-exposure to solvents and noise in a flexible packaging printer. We discuss how such an approach carried out in the field of printing industry work has made it possible to highlight serious shortcomings in the effectiveness of the prevention actions that are supposed to protect workers from chemicals risks and noise. The ergonomic analysis identified a strain working conditions. Indeed, some jobs expose to noise and toxic risk. Lamination operations, winding and cutting are purveyors of noise. Some physical and spatial factors contribute to amplify the toxic risk. The not wearing of personal protective equipment (PPE) by the operators maybe explained by the fact that it doesn't any possibility to do "otherwise". Indeed, operators adopt a compromise to achieve the objectives of production to the detriment of their health and safety. These constraints are causing gene and psychosocial factors. The interviews revealed a state of psychosis in the workshop, which was accentuated by the reclassification of an operator which has created a climate of panic and anxiety especially for older operators who have more than 20 years exposed to handling of toxic and more exposure to high noise level.     

Institutional design and utilization of evaluation: a contribution to a theory of evaluation influence based on Swiss experience

Growing interest in the institutionalization of evaluation in the public administration raises the question as to which institutional arrangement offers optimal conditions for the utilization of evaluations. Institutional arrangement denotes the formal organization of processes and competencies, together with procedural rules, that are applicable independently of individual evaluation projects. It reflects the evaluation practice of an institution and defines the distance between evaluators and evaluees. This article outlines the results of a broad-based study of all 300 or so evaluations that the Swiss Federal Administration completed from 1999 to 2002. On this basis, it derives a theory of the influence of institutional factors on the utilization of evaluations.     

The effects of workstation changes and behavioral interventions on safe typing postures in an office

The purpose of the present study was to determine the effectiveness of an ergonomic and behavioral safety intervention for improving participants' safe typing postures in a library office setting. A single-subject multiple baseline design across five participants was employed to evaluate the effects of the four independent variables (workstation adjustment, equipment trial (rollermouse mouse alternative), peer observations, and graphic feedback). Six participant postures were observed repeatedly while participants worked at their workstations throughout the study. Each of the interventions resulted in improvements in safety for more than one posture compared to the previous phase. Results of the study indicate that a comprehensive ergonomic program that includes a workstation adjustment and a behavioral safety approach may be helpful to produce maximum improvements in employees' safe ergonomic postures.     

Product option framing under the influence of a promotion versus prevention focus

Investigations into the option framing effect involve the use of a subtractive versus an additive option-framing method to gauge their impact on consumer behaviors. This research examines how option framing could affect choice decisions as a function of a consumer’s goal orientation. Study 1 offers convergent support for the proposition that regulatory focus moderates the option framing effect and the mediating role of action/inaction on the relationship between regulatory focus and the option framing effect. In particular, a reverse finding shows that promotion-focused consumers provided with a +OF options list tend to choose more options than those who are given a −OF option list. To explain the reverse effect, Study 2 examines and demonstrates regulatory fit as a possible moderator. The results of Study 2 also confirm our inference and echo the same results of Study 1. Finally, based on the regulatory fit theory, Study 3 examines if cognitive constraints associate with a consumer’s regulatory orientation may also account for the interaction between regulatory focus and option framing. The results of Study 3 also support the proposition.     

Design of a collaborative monitoring and evaluation system for a community-based nutrition project in rural Bangladesh

Poor diet and undernutrition are common among children living in Bangladesh. To promote appropriate complementary feeding of young children, an economic development (ED) program involving income-generating asset transfer was implemented alongside a social and behavior change (SBC) program. This paper introduces a collaborative monitoring and evaluation (M&E) system in which diverse collaborators (“research group”, “implementation team”, and “coordinators”) facilitate M&E data acquisition by leveraging their comparative advantages. The implementation team built a monitoring system to track the ED (n = 2960) and SBC participants (n=∼10,000) over 12 months. Based on the baseline design and the monitoring records, the collaborators planned an impact evaluation introducing a quasi-experimental design using two cross-sectional surveys and a prospective cohort survey of child feeding and nutritional status. Using various data sources generated from the M&E system, the collaborators will also reveal the program impact pathway through which each intervention component is delivered, received, and utilized alongside the context-specific facilitators and barriers, including the programs’ uptake. The collaborative M&E system enables the sharing of program goals, strengthens collaborators' commitment to the program, and extends the understanding of the program's progress and evaluation activities.     

Articulating influence: Toward a research agenda for interpreting the evaluation of soft power,public diplomacy and nation brands

While the terms soft power, public diplomacy (PD) and nation brands have cemented their place in academic discourse during the early 21st century, the evaluation of these activities has not been given anywhere near the same level of attention. When describing how campaigns are evaluated, scholars tend to make assumptions based on the goals or outputs of an initiative rather than on the basis of reliable, empirical data on its results. Strong positivist tendencies within current scholarship usually lead to evaluation being considered in terms of methodology and best practice, typically with the assumption that certain preferred outcomes will be demonstrable if an ideal model is followed. Most significantly, such approaches seem to underplay the interests and objectives that inform and constrain choices surrounding modes of communication and evaluation. I argue here that PD activities are rarely the product of rational choices about communication options, and nor is PD evaluation the result of applying the “best” methodology. Rather, questions of PD and evaluation practices are bound together in complex organizational and power structures that generate pragmatic responses both to the “problem of influence” and the reporting of results. Through use of the concept of articulation, this article outlines a framework for interpreting evaluation practices from a contextualized perspective, which grasps how and why soft power practices assume certain forms.     

A case study of smoke detector assembly work method intervention and evaluation

The study aimed to evaluate a work method intervention in a smoke detector assembly line. High hand gripping forces and extreme wrist postures were found in the smoke detector assembly line at UTC Fire & Security Company in Maine. A fixture was introduced to replace the old assembly method. Electromyography (EMG) and electrogoniometry were used to measure the workers' hand gripping force and wrist motions with both the old and new assembly methods. Results show both hand gripping forces and wrist postures improved significantly with the new method.     

Demand for gambling: development and assessment of a gambling purchase task

Self-report purchase tasks are a novel approach examining the reinforcing value of addictive behaviour relative to increasing monetary costs required to access the addictive behaviour (i.e. demand). These measures reveal a positive relationship between the indices of demand and addiction problem severity and can elucidate factors associated with motivation for substance use. Gambling is an addictive behaviour that has not been examined using this paradigm. This study seeks to adapt and examine the purchase task for gambling behaviour. A gambling purchase task was devised that asked individuals how often per month they would gamble at various cover charges. Participants were 73 adults from the community with either gambling disorder (n = 28) or alcohol use disorder (n = 24) or were a healthy control (n = 21). Both the alcohol and gambling purchase tasks were administered. Results demonstrate discriminant validity of the gambling purchase task, as individuals with gambling disorder have significantly greater demand for accessing gambling than other groups. The alcohol purchase task also evidenced discriminant validity in that individuals with alcohol use disorder have significantly greater demand for alcohol than other groups. These findings support the use of the gambling purchase task to assess the demand for gambling.     

Military-civilian differences in a driving under the influence (DUI) program sample

ABSTRACT

It is unknown how military-connected participants in DUI programs differ from civilians on sociodemographic, health, and alcohol severity factors. This study analyzed data from 19,639 DUI program participants from 2009 to 2014. Compared to civilians, active duty participants were younger, more likely male and married/partnered or separated, less likely disabled, more likely to be Black, less likely to report anxiety or involvement in domestic violence, more likely to report prior alcohol treatment and having a first-time conviction, and less likely to score in the problematic drinking category. Veterans showed patterns similar to those of active duty with some notable exceptions. Results may be helpful in tailoring culturally competent DUI program content, particularly among social workers who often serve this population.     

Indian Ocean Tsunami and its influence on the resurgence of social work as an academic discipline in Sri Lanka

ABSTRACT

In December 2004, the massive Indian Ocean Tsunami hit the coastal areas of Sri Lanka causing a devastating impact on the lives of people. National and International humanitarian aid received in the aftermath was unprecedented. Among this was a team of professors and students from the faculty of Social Work, University of Ljubljana, Slovenia, who conducted a summer camp as a social work practice project together with Sri Lankan undergraduates. The objective was to initiate a project for support based on an action research model adopting a short-term design built upon a needs assessment. While critically looking at the process of international support in the context of country’s long history of state welfare and community support systems, the paper also focuses on one major lapse among others, negligence of people’s needs during disaster interventions. The paper attempts to view this situation in relation to the absence of an established social work profession in the country and examines the applicability of an international framework and concepts of social work in developing academic and professional social work in a context as diverse as Sri Lanka.