Load-Oriented Order Release (LOOR) revisited: bringing it back to the state of the art

In the workload control literature, the Load-Oriented Order Release (LOOR) approach has been neglected since its robustness was questioned at the end of the 1990s. This paper revisits LOOR and evaluates whether its performance can be improved in two ways. First, an intermediate pull release mechanism is added to avoid starvation between periodic release events. This mechanism was recently shown to be effective at improving the performance of a state-of-the-art release method known as LUMS COR. Second, an integer linear programming model is used to manage the trade-off between the timing and load balancing functions of order release. The two refinements are assessed using simulations of different shop configurations, which allow us to evaluate robustness. Results demonstrate that the refinements contribute to improving the performance of LOOR such that it can even outperform LUMS COR. Perhaps counter-intuitively, putting more emphasis on load balancing than on the urgency of individual orders is shown to lead to a lower percentage of tardy orders. Overall, the improvements mean that concerns about LOOR’s robustness are no longer valid – it now appears suitable for a wide range of shops found in practice.     

Measuring Loneliness Among Middle-Aged and Older Adults: The UCLA and de Jong Gierveld Loneliness Scales

This study examined the measurement and invariance properties of the R-UCLA and de Jong Gierveld loneliness scales for research involving middle-aged and older adults. Confirmatory factor analyses (CFAs) of data from interviews with adults aged 45–84 revealed limited support for the unidimensionality of either scale while subsequent analyses indicated the multidimensionality of both. However, method effects associated with positive and negative item wording were also evident. Multiple group CFAs provided limited support for assumptions of measurement invariance across age groups and from baseline to follow-up with regard to the R-UCLA scale. In contrast, strong measurement invariance across age groups and successive measurements was established for the bi-dimensional dJG scale. Overall, the findings supported the relative utility of the dJG scale for research involving middle-aged and older adults but suggested a need for attention to the implications of method effects associated with item wording and lack of measurement invariance with respect to item residuals.     

Opportunities for woman-initiated HIV prevention methods among female sex workers in southern China

Rapid changes in China over the past two decades have led to significant problems associated with population migration and changing social attitudes, including a growing sex industry and concurrent increases in STIs and HIV. This article reports results of an exploratory study of microbicide acceptability and readiness and current HIV prevention efforts among female sex workers in two rural and one urban town in Hainan and Guangxi Provinces in southern China. The study focused on these women's knowledge and cultural understandings of options for protecting themselves from exposure to STIs and HIV, and the potential viability and acceptability of woman-initiated prevention methods. We report on ethnographic elicitation interviews conducted with women working within informal sex-work establishments (hotels, massage and beauty parlors, roadside restaurants, boarding houses). We discuss implications of these findings for further promotion of woman-initiated prevention methods such as microbicides and female condoms among female sex workers in China.     

Women and Their Work on Australian Farms

Traditional definitions of farm work have been narrow and commodity-based, allowing the efforts of women to be discounted because they have not been viewed as directly contributing to production. This paper examines the structural gender arrangements that operate to render farm women powerless and to discount their contributions. Data are presented on the extent of women's economic contribution on Australian farms.     

Time to listen: strategies to improve hospital-based postnatal care

BACKGROUND: In Australia and internationally, women report high levels of dissatisfaction with hospital-based postnatal care. AIM: To design and implement strategies to improve hospital-based postnatal care at a Sydney metropolitan hospital. METHOD: This was an Action Research study. In Phase One, midwives considered the literature and participated in group discussions and interviews to determine their perceptions of postnatal care and the factors that facilitate or hinder the provision of quality care. In Phase Two, midwives participated in 12 working group meetings to design strategies to improve care. RESULTS: Several important principles of postnatal care were described, including building a relationship with women, meeting their individual needs, being flexible in approach and providing continuity of care. 'Listening to women', 'being there,' and 'normalising experiences and expectations' were believed to be critical to achieving these principles. A key strategy 'One to One Time' was designed to provide women with an uninterrupted period of time each day with a midwife who was available to listen to their needs and concerns and discuss issues related to their health and that of their baby. CONCLUSION: Midwives designed and implemented strategies that they believed would improve in-hospital postnatal care.     

Employment and earnings of foreign-born scientists and engineers

Population Research and Policy Review -     

Child and Youth Well-Being in the United States, 1975–1998: Some Findings from a New Index

Social Indicators Research - This paper addresses the following questions: Overall, on average, how did child and youthwell-being in the United States of Americachange in the last quarter of the...     

Uprooted belonging: the formation of a ‘Jumma Diaspora’ in New York City

A growing number of so-called indigenous ‘Jumma’ people from the Chittagong Hill Tracts (CHT) in Bangladesh are migrating to New York City (NYC) in search of a ‘better life’, an attempt to escape from a situation defined largely by deprivation and exclusion. This paper asks how these migrants navigate the new terrain, which often does not comply with their expectations but instead fuels a deep sense of disappointment. It will be shown that their transnational practices and belonging are not only extensions of the global ‘Jumma’ network, but also that the formation of a diaspora community and the maintenance of cultural boundaries simultaneously create attachment to NYC. Making NYC a home is shaped by their dreams and aspirations, and by the ambiguous ways in which they relate to both the CHT and NYC, places where they find themselves torn between feelings of longing and detachment.     

Punks,Goths, and Other Eye‐Catching Peer Crowds: Do They Fulfill a Function for Shy Youths?

Adolescent peer crowds such as Punks and Goths are mainly identified by their strikingly unusual or even shocking appearances. Although many studies find these crowds, few have tried to explain why some youths take on these startling or shocking appearances. We hypothesized that an off‐putting appearance is a way to cope with behavioral inhibition by limiting social contacts. Using data from 1,200 7th–11th graders, we compared peer crowds characterized by their startling appearance (“Radical” crowds) with three theoretically relevant comparison groups. Results showed that youths affiliating with Radical crowds were more inhibited than other youths, including those in crowds previously shown to be shy or socially anxious. Inhibited Radicals, however, had poorer emotional adjustment than inhibited youths in other crowds. If Radical styles are a way for inhibited youths to cope by limiting social contacts, the strategy does not seem to be beneficial for emotional adjustment.     

Ecological research can augment restoration practice in urban areas degraded by invasive species—examples from Chicago Wilderness

Urban biodiversity conservation needs a firm scientific foundation, one that draws upon active and regionally calibrated research programs. Until recently this foundation has not existed. In this paper we examine the way in which the emerging discipline of restoration ecology in an urban context can learn from the experiences of ongoing restoration projects and in turn how novel insights from research of urban soils can help these projects define and reach their goals. Limitations on collaboration between academic researchers and practitioners continues be problematic. We discuss a model whereby this impediment may be removed. A case study of Rhamnus cathartica, an invader of Midwestern woodlands which modifies some important soil ecosystem properties will be used to illustrate the potential for engagement between research and practice.