On the leadership function of self-sacrifice

This paper describes the leadership function of self-sacrifice in organizational settings using a multiple-level model of leadership. It explores why self-sacrificial behaviors would arise in organizational settings and what would be the effects on followers if a leader exhibits self-sacrificial behaviors. It is proposed that self-sacrificial leadership will facilitate individual and organizational adaptations to changing environments and that followers will attribute charisma and legitimacy to a self-sacrificial leader and intend to reciprocate.     

Determinants of stability and changes in self-reported work disability among older working-age populations

Data from the Health and Retirement Study, 1992-1994, were used to analyze (1) the prevalence and incidence of self-reported work disability among older working-age populations over a two-year period, and (2) the effect of the stability/changes in physical and functional health conditions, controlling for socioeconomic and occupational characteristics, on the stability/changes in self-reported work ability/disability. Findings show a high rate of transitions into and out of work-disabled status over the two-year period. Findings also show that, although objective physical and functional health problems and low self-ratings of health at wave 1 were significant determinants of self-reported work disability at wave 1, most subsequent changes in objective physical and functional health conditions over the two-year period were not significantly associated with the changes in self-report of work disability between wave 1 and wave 2. Especially, improved health conditions were not significantly associated with regained work ability between the two waves. Of the demographic variables, female gender significantly increased the likelihood of reporting work disability at wave 2, and being Black or Hispanic significantly decreased the likelihood of reporting regained work ability at wave 2. Research and policy implications of the findings are discussed.     

Single-machine scheduling with periodic due dates to minimize the total earliness and tardy penalty

We consider a single-machine scheduling problem such that the due dates are assigned to each job depending on its order, and the lengths of the intervals between consecutive due dates are identical. The objective is to minimize the total penalty for the earliness and tardiness of each job. The early penalty proportionally increases according to the earliness amount, while the tardy penalty increases according to the step function. We show that the problem is strongly NP-hard, and furthermore, polynomially solvable if the two types of processing times exist.

     

Limited Income Mobility: Empirical Evidence from Korea

Longitudinal child cohort studies collect large amounts of information about children’s families and the types of activities they participate in. With such a broad array of information to select from, researchers investigating aspects of the family environment may be overwhelmed by the choices available if they only need summary measures reflecting domains of the family environment. Using data from the Longitudinal Study of Australian Children, this study aimed to derive and assess summary indices of three domains of the family environment, including a Family Stress Index, Home Education Index and Parenting Index. Indices were derived by identifying a set of candidate indicators, dichotomising the indicators to determine elements of risk, then averaging across the dichotomised items to create measures that captured cumulative risk. Assessments of the three indices suggest that the measures are consistent across time, and have good predictive validity with socioeconomic measures and assessments of children’s social-emotional wellbeing and learning outcomes. Structural equation models estimating children’s outcomes suggested that models using the indices had comparable model fit to models using the broader array of variables used to construct the indices, but the Parenting Index in particular explained less variation in children’s problem behaviour outcomes. Overall, the family environment indices derived in this study may be useful for researchers wishing to simplify complex models or explore the circumstances of children exposed to multiple risks, but less useful in analyses where the primary goal is to explain variance in children’s developmental outcomes.     

Is Ethnic Identity a Buffer? Exploring the Relations Between Racial Microaggressions and Depressive Symptoms Among Asian-American Individuals

ABSTRACT

This study explores the moderating role of ethnic identity in the relations between racial microaggressions and depressive symptoms. Using survey data from 353 Asian-American college students, we found that racial microaggressions significantly predicted depressive symptoms and accounted for 24% of the variance in a hierarchical multiple regression analysis. In addition, ethnic identity moderated the relations between racial microaggressions and depressive symptoms. Thus, ethnic identity buffers Asian-Americans against the negative mental health effects of racial microaggressions. Implications for research and practice in the field of social work are discussed.     

Racial/Ethnic Inequality Among Older Workers: Focusing On Whites,Blacks, and Latinos Within the Cumulative Advantage/Disadvantage Framework

The experience of older racial/ethnic minority workers may differ from that of their non-Hispanic White counterparts because of persistent racial/ethnic differences; however, our knowledge of older minority workers is fragmentary. Using the cumulative advantage/disadvantage framework, this study aimed to identify factors that explain older Americans’ labor market participation after age 65 and whether racial/ethnic differences exist among those factors. Using the 2004 and 2008 waves of the Health and Retirement Study data, racially separate analyses were performed to systematically compare factors by race. The results showed that factors influencing labor force participation after age 65 were indeed conditioned by race. Health and meaning of work significantly influenced non-Hispanic Whites, whereas home ownership increased the odds of working among non-Hispanic Blacks, and Latinos were concerned with health alone. The findings suggest that older ethnic minorities appear to experience a greater vulnerability to involuntary labor market exit—as opposed to personal preference or financial necessity. This racial/ethnic inequality should be understood not as sudden occurrences in old age, but as a by-product of the interplay between the individuals’ lifetime experiences and the social structures that impose cumulative advantages/disadvantages on them. Continued research will help reduce racial gaps in the next generation of older workers.     

Motivational signage increases stair usage on a Hispanic serving institution

Abstract

Objective: Stair climbing is considered a good physical activity. Motivational signage has been successful in promoting stair usage in various settings. This study was to investigate the effects of motivational signage on stair usage in a Hispanic serving institution. Participants: A total of 31,067 pedestrians were observed from February to March 2013. Methods: Stair usage was monitored for 9?h per day each week at phase 1 (baseline), 2 (intervention), and 3 (post-intervention). Results: Overall, participants’ stair usage was higher during phase 2 (49.0%) and phase 3 (48.0%), compared with phase 1 (39.7%). The participants during phase 2 and 3 were more likely to use the stairs compared to participants during phase 1, regardless of floor level (3-story or 4-story building), status (student or staff/faculty), and time of day (7:30–10:29, 10:30–13:29, or 13:30–16:30) (p?<?.001). Conclusion: Motivational signage can effectively encourage more stair usage, and hence promote healthy behavior in a predominantly Hispanic-serving institution.     

Organizational innovativeness and its determinants in South Korean nonprofit human service organizations

This study compares the level of organizational innovativeness and its determinants in different types of nonprofit human service organizations. Based on theoretical conceptualizations of organizational innovation, it was hypothesized that community service organizations (CSOs) would be more innovative than residential service organizations (RSOs), and determinants of organizational innovation (such as organizations' characteristics, internal and external properties, and executive leadership) would influence innovativeness. Data from a survey of two types of human service organizations in South Korea (127 RSOs for children and 220 CSOs) revealed that the level of innovation in both types of organizations was not significantly different. The determinants of decentralization and formalization showed significant impacts on innovativeness in CSOs. Decentralization also had a significant positive effect on innovativeness in RSOs. However, executive leadership was a significant determinant of organizational innovativeness in CSOs only. Based on these results, administrative implications are suggested for the facilitation of organizational innovation in nonprofit human service organizations.     

Religion,spirituality, coping,and resilience among African Americans with diabetes

Study aims were to explore how religion and spirituality impacted attitudes about self-management practices among African Americans with homelessness histories and to understand resilience in diabetes care practices. Qualitative semistructured face-to-face interviews were conducted with 42 African Americans older than 18 years. All audio-taped interviews lasted between 1–1.5 hr, transcribed verbatim, and analyzed using ATLAS.ti (version 7.0). Five resilience themes emerged. While participants recognized diabetes as an illness requiring professional treatment, the context of balancing treatment with religion and spiritual practices mattered. The study findings highlight the importance of spirituality, religious beliefs, and coping strategies in diabetes self-care activities.