Reliability of accelerometric measurement of physical activity in older adults-the benefit of using the trimmed sum

There is general consensus that physical activity is important for preserving functional capacities of older adults and positively influencing quality of life. While accelerometry is widely accepted and applied to assess physical activity in studies, several problems with this method remain (e.g., low retest reliability, measurement errors). The aim of this study was to test the intra-instrumental retest reliability of a wrist-worn accelerometer in a 3-day measurement of physical activity in older adults and to compare different estimators. A sample of 123 older adults (76.5?±?5.1?years, 59?% female) wore a uniaxial accelerometer continuously for 1?week. The data were split into two repeated measurement values (week set) of 3?days each. The sum, the 80?C99th quantiles and the 80?C99th trimmed sums were built for each week set. Retest reliability was assessed for each estimator and graphically demonstrated by Bland?CAltman plots. The intraclass correlation of the retest reliability ranged from 0.22 to 0.91. Retest reliability increases when a more robust estimator than the overall sum is used. Therefore, the trimmed sum can be recommended as a conservative estimate of the physical activity level of older adults.     

Schedule flexibility in hourly jobs: unanticipated consequences and promising directions

This article considers the challenge of extending conventional models of flexibility to hourly jobs that are often structured quite differently than the salaried, professional positions for which flexibility options were originally designed. We argue that the assumptions of job rigidity and overwork motivating existing flexibility options may not be broadly applicable across jobs in the US labor market. We focus specifically on two types of flexibility: (1) working reduced hours and (2) varying work timing. We first review central aspects of the US business and policy contexts that inspire our concerns, and then draw on original analyses from US census data and several examples from our comparative case-study research to explain how conventional flexibility options do not always map well onto hourly jobs, and in certain instances may disadvantage workers by undermining their ability to earn an adequate living. We conclude with a discussion of alternative approaches to implementing flexibility in hourly jobs when hours are scarce and fluctuating rather than long and rigid.     

Macht und Gender

What prevents women, who wish to pursue a career, from gaining power???If organizational micro-politics, which means using and developing power, is conceptualized as an acting competence, the acquisition of cognitive competences and also the willingness to act micro-politically will turn into focus, which can be regarded as an indicator for the integration of micro-political acting into a self-concept. According to common models of competences this illustrates self-competence. The interviews conducted with female young executives revealed that the willingness??more than the ??pure motivation to advance a career????represents a key factor to be successful in advancing a career. The willingness seems to be even more marked, the less the self-concept is linked to female gender-stereotype. With regards to this result it is discussed what this means to the development of micro-political competences for women.     

Public sector managers: the decision to leave or remain in a job

The public sector faces a grave problem as far as managerial retention as the result of the increasing number of retirements and of voluntary resignations. Despite the vital interest in managerial turnover in the public sector, research is scarce. This study, which increases our understanding of why public sector managers leave their positions, takes a qualitative and narrative research approach in examining voluntary turnover. Interviews were conducted with operations managers (in education, social care, and technical activities) at three Swedish municipalities. We identify a multitude of environment push and pull factors with a focus on administrative support, supervisory support and illegitimate tasks. The narratives of managerial turnover reveal the complexity of the decision to leave or remain in a job, containing a mixture of push and pull factors, negative feelings, unmet expectations and extraordinary events. Three possible HRD actions to decrease undesirable managerial turnover are identified: re-work organizational structures; re-model job characteristics; and re-examine managerial turnover decisions as a long and complex process. Our hope is that the findings are used for ultimately create healthy organizations.     

Determinants of recent immigrants’ location choices: quasi-experimental evidence

This paper exploits a Danish spatial dispersal policy on refugees, which can be regarded as a natural experiment to investigate the influence of regional factors on recent immigrants’ location choices. The main push factors are lack of co-nationals and immigrants. Additional push factors are lack of rental, including social, housing and lack of institutions for qualifying education, which explain why recent immigrants are attracted to large cities. Finally, placed refugees tend to leave locations with relatively high regional unemployment, and there is indirect evidence of welfare seeking.

Continuity and Change in the Family System Across the Transition from Adolescence to Emerging Adulthood

As adolescents move into emerging adulthood, their social networks shift toward a focus on peers and romantic partners, yet parents and siblings remain important sources of support. The present review takes a family systems approach to integrate the growing body of literature examining longitudinal continuity and change in both positive (e.g., intimacy, support) and negative (e.g., conflict, rivalry) qualities of parent–child and sibling relationships as adolescents transition to emerging adulthood. In general, contact with family members decreases, yet the quality of family relationships appears to improve or, at the very least, stabilize across this transition. These pathways are interpreted within the lens of several prominent theories, and a discussion of the limitations of the current literature and ideas for future research are presented.     

The effect of number of siblings on adult mortality: Evidence from Swedish registers for cohorts born between 1938 and 1972

Demographic research has paid much attention to the impact of childhood conditions on adult mortality. We focus on one of the key aspects of early life conditions, sibling group size, and examine the causal effect of growing up in a large family on mortality. While previous studies have focused on low- or middle-income countries, we examine whether growing up in a large family is a disadvantage in Sweden, a context where most parents have adequate resources, which are complemented by a generous welfare state. We used Swedish register data and frailty models, examining all-cause and cause-specific mortality between the ages of 40 and 74 for the 1938–72 cohorts, and also a quasi-experimental approach that exploited multiple births as a source of exogenous variation in the number of siblings. Overall our results do not indicate that growing up in a large family has a detrimental effect on longevity in Sweden.     

The “what” and “who” of co-optation: gendered racialized migrations,settler nation-states and postcolonial difference

In this article, I focus on the management of postcolonial difference and the production of belonging in a white settler nation-state in order to rethink the notion of co-optation. I first develop a theoretical framework for understanding co-optation by separating the “who” and the “what” of co-optation: actors who embody diversity in public, political debate become the “who” of co-optation, as their agency is shaped by gendered and racialized processes of subject making. The “what” of co-optation revolves around particular conceptualizations of practices, rights and freedoms, associated in this case with “gender equality,” which is rendered an empty signifier in the process. I then illustrate this framework by drawing from research on the Sharia-based arbitration debate that took place in Ontario, Canada, between late 2003 and early 2006. I focus on the claims of two Canadian Muslim women activists to show that co-optation occurs as attempts to further liberation instead advance illiberal practices.