Construct Validation and Application of a Common Measure of Social Cohesion in 33 European Countries

The aim of the paper is to assess the construct validation of a multidimensional measure of social cohesion which is well theoretically grounded and has an equivalent/comparable interpretation across all European countries. Up-to-now published research on social cohesion is deficient in either one or both of these important aspects. This paper attempts to cover this gap. The task is accomplished in two steps. In the first step, we conceptualize social cohesion, flowing mainly from Bernard and Chan’s definitions of social cohesion. Based on this theoretical framework we operationalize social cohesion and derive a set of intermediate indicators in the data. By return we verify whether these indicators empirically reflect/corroborate the multidimensional structure of the concept proposed by the theory. In the second step, we examine whether the obtained intermediate indicators of social cohesion form the same constructs across countries and whether they can yield a cross country equivalent measure of social cohesion. To test the validity of the theory we use multidimensional scaling and confirmatory factor analysis. Both models are able to verify the equivalence of the structural results between groups (i.e. countries). Confirmatory factor analysis produces further meaningful measures of these constructs. The analyses are based on the data from the 1999 European Values Study (EVS). The outcomes of the analyses reveal that, firstly, the existence of the multifaceted construct of social cohesion suggested by the theory has been corroborated by empirical analysis of the EVS data (i.e. social cohesion consists of components of formal and substantial relationships and political and socio-cultural domains). Secondly, the proposed constructs measuring social cohesion are equivalent across all analysed countries and thus allow the calculation of internationally comparable national scores of social cohesion. Application of the aggregate measures at the country level will illustrate the interest of the approach for further research.     

The evaluation of team lifting on physical work demands and workload in ironworkers

Lifting and carrying heavy loads occur frequently among ironworkers and result in high prevalence and incidence rates of low back complaints, injuries and work-disability. From a health perspective, little information is available on the effect of team lifting on work demands and workload. Therefore, the objective of this study was to compare the effects of team lifting of maximally 50 kg by two ironworkers (T50) with team lifting of maximally 100 kg by four ironworkers (T100). This study combined a field and laboratory study with the following outcome measures: duration and frequency of tasks and activities, energetic workload, perceived discomfort and maximal compression forces (Fc peak) on the low back. The physical work demands and workload of an individual iron worker during manual handling of rebar materials of 100 kg with four workers did not differ from the manual handling of rebar materials of 50 kg with two workers, with the exception of low back discomfort and Fc peak. The biomechanical workload of the low back exceeded for both T50 and T100 the NIOSH threshold limit of 3400N. Therefore, mechanical transport or other effective design solutions should be considered to reduce the biomechanical workload of the low back and the accompanying health risks among iron workers.     

Does team lifting increase the variability in peak lumbar compression in ironworkers?

Ironworkers frequently perform heavy lifting tasks in teams of two or four workers. Team lifting could potentially lead to a higher variation in peak lumbar compression forces than lifts performed by one worker, resulting in higher maximal peak lumbar compression forces. This study compared single-worker lifts (25-kg, iron bar) to two-worker lifts (50-kg, two iron bars) and to four-worker lifts (100-kg, iron lattice). Inverse dynamics was used to calculate peak lumbar compression forces. To assess the variability in peak lumbar loading, all three lifting tasks were performed six times. Results showed that the variability in peak lumbar loading was somewhat higher in the team lifts compared to the single-worker lifts. However, despite this increased variability, team lifts did not result in larger maximum peak lumbar compression forces. Therefore, it was concluded that, from a biomechanical point of view, team lifting does not result in an additional risk for low back complaints in ironworkers.     

An exploratory study on the impact of daily activities on the pleasure and physical activity of older adults

Background

Pleasure is one determinant of intrinsic motivation and yet a dimension often forgotten when promoting physical activity among the older population. In this study we investigate the relation between daily activities and physical activity, experience of pleasure, and the interaction between pleasure and physical activity in the daily lives of community-dwelling older adults.

Methods

Participants carried a hip-worn accelerometer during 30 consecutive days resulting in a total of 320 days of data collection. Current activity, location, companion and experience of pleasure during each activity were assessed through experience sampling on a smartphone every 1–2 h. Between- and within-individual differences were analysed with multi-level models and 10xN?=?1 regression analysis.

Results

Outdoor activities were associated with higher physical activity than indoor activities (p?<?0.001). Performing leisure activities, outdoors and not alone significantly predicted pleasure in daily life (all p’s?<?0.05). Being more active while performing leisure activities resulted in higher experiences of pleasure (p?<?0.001). However, when performing basic activities of daily living (e.g. commuting or households) this relation was inverted. Results provide meaningful indication for individual variance. The 30 days of data collected from each participant allow for identification of individual differences.

Conclusions

Daily activities and their contexts do influence the experience of pleasure and physical activity of older adults in daily life of older adults, although similar research with larger population is recommended. Results are in accordance with the literature, indicating that the method adopted (accelerometry combined with experience sampling) provides reliable representation of daily life. Identification of individual differences can eventually be automatically performed through data mining techniques. Further research could look at innovative approaches to promote Active Ageing using mobile technology in the daily life, by promoting physical activity through recommendation of pleasurable activities, and thus likely to increase the intrinsic motivation to become physically active.

     

Veränderungen der Rollenstruktur von Arbeitsgruppen im Rahmen einer Software-Implementierung

Introducing new technologies in organizations often brings about tremendous changes regarding structures and processes that also impact procedures, communication and cooperation in working groups. In this study we investigate whether the structure of working teams changed in the course of a software implementation process, what kind of impact these changes had on the teams, and how these changes could be used to shape the implementation process in a positive way. To that end, working teams from different organizations and sectors were analyzed using sociometric methods prior to and after a software implementation process. Results show typical changes in role structures that can be used to shape the implementation process. Implications for research and practice are discussed.     

Kommunikation und Kooperation in Virtuellen Teams

This paper reflects on characteristics of virtual teams as well as potentials and challenges of this coopewration form. A crucial aspect of computer-mediated cooperation is the interplay of technical, social, as well as organizational factors. Therefore, Janneck’s (Proceedings of the 5th International Conference on Web Information Systems (S. 521–526), Lisboa, INSTICC Press, 2009) Multidimensional Model of Computer-Mediated Communication, which makes a clear distinction between social and technical factors influencing computer-mediated communication, is presented in more detail.     

Marital Status and Reproductive Performance in Kipsigis Women: Re-evaluating the Polygyny-Fertility Hypothesis

The effects of marital status on fertility and offspring survivorship are examined with data on six marriage cohorts of Kipsigis women, agro-pastoralists of south western Kenya. Neither marriage order, nor the average number of co-wives married to a man during a woman's reproductive years, is associated with completed family size, nor with any of the components of reproductive performance. The mechanisms whereby polygyny might potentially lower the reproductive performance of polygynously married women in the Kipsigis and other populations are discussed in some detail, with particular reference to resource shortages, sexual and economic favouritism, the observance of post partum taboos, disease, husband's age, co-wife co-operation, education, sterility, and age at menarche and marriage.     

Kompetenz- und karrieref?rderliches Führungsverhalten: Zum Stand der Forschung

The direct manager which has close contact with his employees is suited to challenge and support them according to their interests and abilities. This paper provides a summary of the empirical literature about the meaning and mechanism of different leadership behaviors influencing employees?? competencies and career advancement. The leader??s behaviors are divided in two ways of support. The direct contact (feedback, training measures, promotion, trust and expectations, objectives?? management, social support, role model behavior) and support by providing competence and career enhancing tasks and job design (delegation of challenging tasks, job control, person-job-fit). Thereby a particular focus is placed upon gender-specific outcomes. Based on the actual research findings, additional recommendations for the career enhancement in practice and for future research are provided.     

Doctors doing drugs and drinking

Meet Dr. Kevin, Dr. Bob and Dr. Robert, three physicians whose behavior problems included doing drugs or drinking. All three got sober, but their struggles with substance abuse still haunt them today.