Diaspora mobilization and the politics of loyalty in the time of Ebola: evidence from the Sierra Leonean diaspora in the UK

Following the recent involvement of overseas diasporas and citizen groups in humanitarian crises, scholars are reconsidering how these groups mobilize and what distinguishes them from formal humanitarian organizations. In this article, I document the individual and collective mobilization of a section of the Sierra Leonean diaspora during the 2014/15 Ebola outbreak. I focus on the individual health‐related communications of Sierra Leoneans living in London, on a specific UK‐based diaspora association called the Kono District Development Association‐UK, and on efforts to coordinate the diaspora. Bolten (2012), and Van Hear and Cohen (2017), show that diasporic mobilization operates through ‘nested scales’ of loyalty to kin, association and nation, and that these different loyalties overlap and conflict. I argue that such overlapping engagements challenge policy orientations to ‘national’ diasporas and offer an alternative model of international humanitarianism.     

AN INTEGRATIVE APPROACH TO PROCESS PARAMETER SELECTION

This case study of a process improvement project from the Hewlett-Packard Analytic Products Group illustrates a number of important approaches for operations strategy. First, we show how process control in capillary tube manufacturing led to a significant improvement in tubing strength, a quality measure that relates to the frequency of tube defects at a particular stress level. Next, we show how one particular approach used for experimental design and process improvement was considerably more economical than another standard method. In conclusion, we link the process characteristics such as defect frequency to strategic measures such as company revenue and investment to underscore the strategic importance of process control.     

Special issue introduction: maritime networks and transnational spaces

This article introduces the key contributions of the special issue on ‘Maritime networks and transnational spaces’. It draws attention to three key thematics that the papers develop. These are a set of engagements between law, space and maritime networks; a set of questions around maritime spaces, subaltern histories and transnational networks and finally a set of concerns around the forms of ‘geopolitical literacy’ articulated by maritime actors (Troutman 2005). Through drawing together these interlocking problematics the articles contribute to a broad agenda highlighting the productive intersection of work on maritime networks and transnational spaces. The introduction sets out some of the ways in which engagements with maritime contexts and scholarship can offer new perspectives on the transnational spatialities of politics, resistance and regulation.     

WAGES,EMPLOYMENT, AND STATISTICAL DISCRIMINATION: EVIDENCE FROM THE LABORATORY

We report results from laboratory experiments designed to examine statistical discrimination. Our design expands upon existing research by generating data both on wage contracts and unemployment rates of directly competing worker groups. We find some evidence for statistical wage discrimination against workers having an identical expected productivity but a higher productivity variance. However, those same subjects are less likely to be unemployed, suggesting that our employer‐subjects view hiring choice and wage contracts as substitutable. A clear implication is that field data discrimination estimates based on wages alone may overestimate the true impact of such discrimination. (JEL C90, J71)     

COMPUTER INTEGRATION AND CATASTROPHIC PROCESS FAILURE IN FLEXIBLE PRODUCTION: AN EMPIRICAL INVESTIGATION

This paper empirically investigates the effect of advanced manufacturing technology on process stability during flexible production in a process industry. A sample of 61 North American fine paper plants is used to examine the relationship between the level of automation installed for controlling changes between paper grades and the incidence of paper web breaks. These web breaks are catastrophic failures; they require the entire plant to be stopped, reinitialized, and restarted. Because a large fraction of breaks occurs shortly after changeovers, they are an important determinant of the aspect of plant flexibility, called mobility, or the ability to move between products with only small penalties. In an attempt to ensure stable and mobile production, many plants have implemented changeover automation. We find, however, that higher levels of this automation are significantly associated with higher rates of catastrophic failure among the plants studied. We suggest that this finding becomes less paradoxical when considered in light of a recent stream of research on advanced manufacturing technologies, loosely called the usability perspective. According to this perspective, automation designed and implemented with the narrow, technical goal of replacing human operators or removing their discretion over a production process is misguided, especially in environments in which requirements are changing rapidly.     

SEQUENCING AND BATCHING FOR TWO CLASSES OF JOBS WITH DEADLINES AND SETUP TIMES

We formulate a general sequencing problem that includes two classes of jobs with setup times, setup costs, holding costs, and deadlines. The formulation is unique in its explicit recognition of the opportunities to exploit productive capacity increases due to batching. An algorithm based on tabu search is then used as a solution method. Computational results are presented that suggest that the algorithm is effective.     

AN EXPERIMENTAL MODEL FOR INVESTIGATING THE SENSITIVITY OF JOB SHOP PERFORMANCE TO JOB RELEASE TIME DISTRIBUTION PARAMETERS

Work flows in a job shop are influenced by the load per release and time interval between release factors. We focus on the latter factor, job release times. Building on Elvers' work, this study evaluates the impact of different job release time distributions on shop performance. Using a computer simulation of a random job shop and a full factorial experimental design, we demonstrate that the type of distribution does affect performance–a finding consistent with results from job shops characterized by good shop floor control practices. These findings are explained by examining the shape and variance traits of the underlying job release time distributions.     

Agency Function and Social Work Principles

Summary The concept of agency function is examined in relation to thenature of the social work task. It is often the case that agencyfunction is seen more as a problem for social work and not asone of its characteristics. It is argued in this paper thatthe agency itself is not responsible for the apparently delicatestate of present day social work, but that on the contrary,the failure to appreciate social work's relationship to societyand social processes in part accounts for its uncertain condition.     

Understanding Mortality Rate Deceleration and Heterogeneity

ABSTRACT

Generic relationships between heterogeneity in population frailty and flattening of aggregate population hazard functions at extreme ages are drawn from classical mathematical results on the limiting behavior of Laplace transforms. In particular, it shows that the population hazard function converges to a constant precisely when the distribution of unobserved heterogeneity in initial mortalities behaves asymptotically as a polynomial near zero.     

STRATEGIC RITUALIZATION AND ETHNICITY: ATYPOLOGY AND ANALYSIS OF RITUAL ENACTMENTS IN AN ITALIAN AMERICAN COMMUNITY

This investigation utilizes a theoretical framework that focuses on ritual enactments to examine the ways members of an Italian American community in southeastern Oklahoma use social rituals to achieve different outcomes. Several methodological strategies (especially interviews and historical analysis) are utilized to document how individuals within this ethnic community have, for over the last century, employed numerous rituals to, among other things, express their ethnicity, create community ties, enhance personal gain, and survive. Building upon the theory of structural ritualization, the concept of strategic ritualization is employed and expanded upon to examine this issue. A typology of three types of strategic ritualization is presented and defined: ritual legitimators, ritual entrepreneurs, and ritual sponsors. This conceptualization represents the first elaboration of structural ritualization theory addressing this topic. In focusing on this little studied ethnic community, the importance of ritualized practices and their strategicuse throughout society are emphasized. The relation of this research to broader concerns dealing with the social constructionist approach to ethnicity and the intersection of decision-making, culture, and structure are briefly highlighted and directions for future theory development and research are indicated.