Miracle-dz/UniFAR-FTUs huggingface dataset:
Racial equity in the post-civil rights suburbs? Evidence from US regions 2000–2012

Minority suburbanites in the US have historically lived in more disadvantaged neighbourhoods than Whites. Yet, those in suburbs that came of age after the 1960s civil rights era may be experiencing more equal outcomes. Using US Census data and descriptive statistics, this research tests whether post-civil rights suburbs had greater racial equity in neighbourhood poverty, college educated, and homeownership rates relative to central cities and older suburbs in 88 regions from 2000 to 2012. Minorities typically experienced better and more equitable neighbourhood conditions in the post-civil rights suburbs, with African American and low-income households accruing the greatest gains. Ordinary least squares regression modelling reveals that post-civil rights suburbs’ newer housing stock and greater racial integration and income equality contributed to their greater racial equity.
HIV-Specific CD8+ Lymphocytes in Semen Are Not Associated with Reduced HIV Shedding12

Sexual contact with HIV-infected semen is a major driving force behind the global HIV pandemic. Little is known regarding the immune correlates of virus shedding in this compartment, although HIV-1-specific CD8+ T cells are present in semen. We collected blood and semen from 27 chronically HIV-infected, therapy-naive men without common sexually transmitted infections or urethral inflammation and measured HIV-1 RNA viral load and cytokine/chemokine levels in both compartments. HIV-1 RNA levels were 10-fold higher in blood than semen, but discordantly high semen shedding was associated with higher semen levels of the proinflammatory cytokines IL-6, IL-8, IL-12, and IFN-γ. Virus-specific CD8+ T cell epitopes were mapped in blood by IFN-γ ELISPOT, using an overlapping HIV-1 clade B peptide matrix, and blood and semen CD8+ T cell responses were then assayed ex vivo using intracellular IFN-γ staining. HIV-specific CD8+ responses were detected in 70% of semen samples, and their frequency was similar to or higher than blood. There was no correlation between the presence of virus-specific CD8+ T cells in semen and levels of HIV-1 RNA shedding. Among participants with detectable CD8+ IFN-γ semen responses, their relative frequency was not associated with reduced HIV-1 RNA shedding, and their absolute number was correlated with higher levels of HIV-1 RNA semen shedding (r = 0.6; p = 0.03) and of several proinflammatory cytokines. Neither the presence nor the frequency of semen HIV-specific CD8+ T cell IFN-γ responses in semen correlated with reduced levels of HIV RNA in semen.
Health and Wellbeing through Work and Retirement Transitions in Mature Age: Understanding Pre—Post and Retrospective Measures of Change

The capacity to measure change is essential in examining successful adaptation to ageing. Few studies measuring change have compared findings using pre—post approaches (employing difference scores) with those from retrospective approaches (employing self-ratings). Where this has occurred, differences have been attributed either to ceiling and floor effects or to the operation of social comparison (Choi, 2002, 2003). Our study compared pre—post and retrospective measures of change in health, health behaviors, and wellbeing over periods of 1 and 3 years among retirees. Retrospective measures were found to be more positive than pre—post measures. This discrepancy was associated with floor and ceiling effects and with a robust self-image, but not with recency, social comparison, or social desirability response sets. Pre—post difference scores have limitations as indicators of change, particularly where ceiling effects operate. A retrospective perception of improvement, combined with deterioration in scores, may result from successful psychological adaptation as people grow older.
A time synchronization method of power grid based on TD — LTE frame synchronization

The operation of intelligent power distribution network automation, control and other services require accurate time synchronization. Therefore, based on the technology of TD-LTE wireless private network communication system, this paper proposes a time synchronization method based on TD-LTE frame synchronization, which includes the research of TD-LTE frame synchronization mechanism and the method of time delay compensation. TD-LTE frame synchronization mechanism is used for the primary and secondary synchronization signals, mapped absolute time and TD-LTE system synchronization frame structure; at the same time, the method of time delay compensation is designed to improve the accuracy by correct the delay caused by radio propagation path. Finally, the feasibility of this technology is analyzed and verified by simulation experiment, and test accuracy can reach the order of sub-microsecond, which can meet the demand of power distribution network service.
Modelling climate change impacts on the flood pulse in the Lower Mekong floodplains

The flood pulse is a key element characterizing the hydrology of the Mekong River and driving the high ecosystem productivity in the Lower Mekong floodplains, both in the Cambodian lowlands and the Mekong Delta in Vietnam. This paper assesses the impacts of climate change, both in terms of changed basin water balance and sea level rise, on the Lower Mekong flood pulse. The impacts were simulated by a three-dimensional hydrodynamic model using the projected changes in sea level and the Mekong mainstream discharge under the influence of climate change as boundary conditions. The model simulations projected that average and maximum water levels and flood duration increase in 2010–2049. The most consistent and notable changes occurred in the average and dry hydrological years. Sea level rise had the greatest effects in the Mekong Delta, whereas the impacts of changed basin water balance were more notable in the upper areas of the Mekong floodplains. The projected impacts were mostly opposite to those resulting from regional water infrastructure development. Higher and longer flooding could cause damage to crops, infrastructure and floodplain vegetation, and decrease the fertile land area. On the other hand, it might boost ecosystem productivity and enhance dry season water availability.
Overexpression of human UDP-glucose pyrophosphorylase rescues galactose-1-phosphate uridyltransferase-deficient yeast.

To better understand the pathophysiology of galactose-1-phosphate uridyltransferase (GALT) deficiency in humans, we studied the mechanisms by which a GALT-deficient yeast survived on galactose medium. Under normal conditions, GALT-deficient yeast cannot grow in medium that contains 0.2% galactose as the sole carbohydrate, a phenotype of Gal(-). We isolated revertants from a GALT-deficient yeast by direct selection for growth in galactose, a phenotype of Gal(+). Comparison of gene expression profiles among wild-type and revertant strains on galactose medium revealed that the revertant down-regulated genes encoding enzymes including galactokinase, galactose permease, and UDP-galactose-4-epimerase (the GAL regulon). By contrast, the revertant strain up-regulated the gene for UDP-glucose pyrophosphorylase, UGP1. There was reduced accumulation of galactose-1-phosphate in the galactose-grown revertant cells when compared to the GALT-deficient parent cells. In vitro biochemical analysis showed that UDP-glucose pyrophosphorylase had bifunctional properties and could catalyze the conversion of galactose-1-phosphate to UDP-galactose in the presence of UTP. To test if augmented expression of this gene could produce a Gal(+) phenotype in the GALT-deficient parent cells, we overexpressed the yeast UGP1 and the human homolog, hUGP2 in the mutant strain. The Gal(-) yeast transformed with either UGP1 or hUGP2 regained their ability to grow on galactose. We conclude that revertant can grow on galactose medium by reducing the accumulation of toxic precursors through down-regulation of the GAL regulon and up-regulation of the UGP1 gene. We speculate that increased expression of hUGP2 in humans could alleviate poor outcomes in humans with classic galactosemia.
FORECASTING STOCK INDEX VOLATILITY: COMPARING IMPLIED VOLATILITY AND THE INTRADAY HIGH-LOW PRICE RANGE

The intraday high–low price range offers volatility forecasts similarly efficient to high-quality implied volatility indexes published by the Chicago Board Options Exchange (CBOE) for four stock market indexes: S&P 500, S&P 100, NASDAQ 100, and Dow Jones Industrials. Examination of in-sample and out-of-sample volatility forecasts reveals that neither implied volatility nor intraday high–low range volatility consistently outperforms the other.
Customer satisfaction: some results for European Retailing

Customer satisfaction and customer loyalty are becoming increasingly important factors in modern retailing—a market characterized by slow growth and intense competition. Big non-European chains such as Walmart are already present in some countries and are considering buying some of the retail chains in other countries, e.g. the Scandinavian countries. This development will demand even more focus on customer satisfaction and customer loyalty in order to stay in business and may also demand that existing actors in the market-place form new coalitions. Promising new partners may be identified partly based upon measures identifying how potential partners are perceived by the customers. Based on results from the European Customer Satisfaction study, a comparative analysis of customer satisfaction in Europe is conducted. Some specific Danish results are shown and the relationship between customer loyalty, supermarket type and ownership structure is studied.
Violence in the emergency department: a survey of health care workers.

BACKGROUND Violence in the workplace is an ill-defined and underreported concern for health care workers. The objectives of this study were to examine perceived levels of violence in the emergency department, to obtain health care workers' definitions of violence, to determine the effect of violence on health care workers and to determine coping mechanisms and potential preventive strategies. METHODS A retrospective written survey of all 163 emergency department employees working in 1996 at an urban inner-city tertiary care centre in Vancouver. The survey elicited demographic information, personal definition of violence, severity of violence, degree of stress as a result of violence and estimate of the number of encounters with violence in the workplace in 1996. The authors examined the effects of violence on job performance and job satisfaction, and reviewed coping and potential preventive strategies. RESULTS Of the 163 staff, 106 (65%) completed the survey. A total of 68% (70/103) reported an increased frequency of violence over time, and 60% (64/106) reported an increased severity. Most of the respondents felt that violence included witnessing verbal abuse (76%) and witnessing physical threats or assaults (86%). Sixty respondents (57%) were physically assaulted in 1996. Overall, 51 respondents (48%) reported impaired job performance for the rest of the shift or the rest of the week after an incident of violence. Seventy-seven respondents (73%) were afraid of patients as a result of violence, almost half (49%) hid their identities from patients, and 78 (74%) had reduced job satisfaction. Over one-fourth of the respondents (27/101) took days off because of violence. Of the 18 respondents no longer working in the emergency department, 12 (67%) reported that they had left the job at least partly owing to violence. Twenty-four-hour security and a workshop on violence prevention strategies were felt to be the most useful potential interventions. Physical exercise, sleep and the company of family and friends were the most frequent coping strategies. INTERPRETATION Violence in the emergency department is frequent and has a substantial effect on staff well-being and job satisfaction.
Rhesus Rotavirus Entry into a Polarized Epithelium Is Endocytosis Dependent and Involves Sequential VP4 Conformational Changes

ABSTRACT Rotavirus (RV) cell entry is an incompletely understood process, involving VP4 and VP7, the viral proteins composing the outermost layer of the nonenveloped RV triple-layered icosahedral particle (TLP), encasing VP6. VP4 can exist in three conformational states: soluble, cleaved spike, and folded back. In order to better understand the events leading to RV entry, we established a detection system to image input virus by monitoring the rhesus RV (RRV) antigens VP4, VP6, and VP7 at very early times postinfection. We provide evidence that decapsidation occurs directly after cell membrane penetration. We also demonstrate that several VP4 and VP7 conformational changes take place during entry. In particular, we detected, for the first time, the generation of folded-back VP5 in the context of the initiation of infection. Folded-back VP5 appears to be limited to the entry step. We furthermore demonstrate that RRV enters the cell cytoplasm through an endocytosis pathway. The endocytosis hypothesis is supported by the colocalization of RRV antigens with the early endosome markers Rab4 and Rab5. Finally, we provide evidence that the entry process is likely dependent on the endocytic Ca2+ concentration, as bafilomycin A1 treatment as well as an augmentation of the extracellular calcium reservoir using CaEGTA, which both lead to an elevated intraendosomal calcium concentration, resulted in the accumulation of intact virions in the actin network. Together, these findings suggest that internalization, decapsidation, and cell membrane penetration involve endocytosis, calcium-dependent uncoating, and VP4 conformational changes, including a fold-back.
Sickness absence, performance pay and teams

Purpose - Performance pay is growing in importance. Even in a centralised economy such as the Norwegian economy, the prevalence of performance pay has increased significantly from 1997 to 2003, and internationally changes in payment methods also occur increasingly. The purpose of this paper is to analyse how performance pay and team organisation and the interaction between these affect publicly-financed sickness absences of workers. Design/methodology/approach - Standard panel and cross-section non-linear and linear regression techniques are applied to Norwegian panel register and questionnaire data on private sector workers and workplaces during 1996-2005. Findings - Team organisation and performance pay are found to be negatively related to sickness absence incidence rates and sick days, partly due to strong negative relationships in workplaces providing jointly performance pay and team organisation. The negative effect of performance pay on sickness absence survives even when fixed job effects are taken into account. The negative effects were stronger for weak incentives than stronger, and they are primarily related to group-based incentive schemes. Practical implications - Introducing weak group-based incentive schemes might be one way to successfully tackle absenteeism for firms. Originality/value - The paper's findings contribute to the growing literature on how performance pay and team organisation affect absenteeism.
An organizational entrepreneurship model of supply management integration and performance outcomes

Purpose – The role of supply managers in driving corporate performance is changing, with an increased emphasis on supply market intelligence, collaboration, inter‐organizational partnerships, and operational integration with supply partners. These traits are also mirrored in the research on entrepreneurial settings and firms. The purpose of this paper is to explore the parallels between supply management roles, and the entrepreneurial skill sets and mechanisms that have been identified in prior research.Design/methodology/approach – A structural equation model, using a sample of 151 manufacturing and service firms based in the UK, tests this hypothesised model.Findings – The theoretical framework was supported, with results indicating that entrepreneurial behaviours (supply market intelligence and supply management influence) contribute to integration within the firm and with suppliers, in order to drive performance improvement.Practical implications – The results provide support for purchasing managers s.
Before September: A History of Counter-terrorism in New Zealand

The events of 11 September 2001 have prompted many states throughout the world to reinvigorate and strengthen their focus on countering terrorism. Surprisingly New Zealand, arguably a relatively unlikely target for terrorist action, already had in place a very comprehensive set of counter-measures both prior to this more recent event and even before the bombing of the Rainbow Warrior in the mid-1980s. This article investigates why and how a state as 'secure' as New Zealand has purposely created a comprehensive set of counter-terrorist measures over the years. Reasons of caution and prudence in the domestic arena are perhaps sufficient, but this article further asserts that various other 'international' elements have also been, and will continue to be, major factors in the development of legislative and substantive counter-terrorist measures in New Zealand.
The influence of transformational leadership on trust, psychological empowerment, and team effectiveness

This study investigated the growing phenomenon of teams in the workplace, and how team effectiveness can be established. It was therefore important to establish what contributes to team effectiveness. The aim of this study was to investigate existing relationships between constructs that play a significant role in enhancing team effectiveness. These constructs include transformational leadership, organisational trust, and psychological empowerment. This study was therefore undertaken to obtain more clarity about these aspects. Based on existing literature, a theoretical model depicting how the different constructs are related to one another was developed and various hypotheses were formulated. Data for the purpose of the quantitative study were collected by means of an electronic web-based questionnaire. A total of 224 completed questionnaires were returned. The final questionnaire comprised of four scales, namely the Multifactor Leadership Questionnaire (MLQ), the Workplace Trust Survey (WTS), the Psychological Empowerment Scale (PES), and the Team Effectiveness Scale (TES). The postulated relationships and the conceptual model were empirically tested using various statistical methods. Reliability analysis was done on all the measurement scales and satisfactory reliability was found. The content and structure of the measured constructs were investigated by means of confirmatory and exploratory factor analyses. The results indicated that reasonable good fit was achieved for all the refined measurement models. Subsequently, Structural Equation Modelling (SEM) was used to determine the extent to which the conceptual model fitted the data obtained from the sample and to test the hypothesised relationships between the constructs. The results indicated positive relationships between transformational leadership and organisational trust; organisational trust and team effectiveness; transformational leadership and psychological empowerment; psychological empowerment and organisational trust; and psychological empowerment and team effectiveness. However, no support was found for a direct relationship between transformational leadership and team effectiveness. The present study contributes to existing literature on team effectiveness by providing insights into the relationship between transformational leadership, Stellenbosch University http://scholar.sun.ac.za
Management Accounting Practices in Europe: A Perspective from the States

I provide a perspective on four questions based on Management Accounting: European Perspectives edited by Al Bhimani (1996). First, seven factors are identified as having shaped management accounting practice in European nations - academics, education, government, professional associations, consultants, technology, and inter-nation transfer of information. Second, evidence supports the view that substantive change in management accounting techniques in European nations is occurring, but on a limited basis (e.g., adopting ABC for some products). Third, evidence indicates that convergence is occurring across European nations in the presence of management accounting techniques, but not necessarily in how those techniques are used. Fourth, management accounting practice in European nations, particularly the presence of techniques, is converging on a global management accounting practice model. I propose that management accounting practice (particularly the presence of techniques) is converging across nations (at least for those firms that are affected by the global economy) and diverging across industries both within and between nations.
Governance Mechanisms and Bond Prices

We investigate the effects of shareholder governance mechanisms on bondholders and document two new findings. First, the impact of shareholder control (proxied by large institutional blockholders) on credit risk depends on takeover vulnerability. Shareholder control is associated with higher (lower) yields if the firm is exposed to (protected from)takeovers. In the presence of shareholder control, the difference in bond yields due to differences in takeover vulnerability can be as high as 66 basis points. Second, event risk covenants reduce the credit risk associated with strong shareholder governance. Therefore, without bond covenants, shareholder governance and bondholder interests diverge.
“Political” Corporate Social Responsibility in Small- and Medium-Sized Enterprises

“Political” corporate social responsibility (CSR) involves businesses taking a political role to address “regulatory gaps” caused by weak or insufficient social and environmental standards and norms. The literature on political CSR focuses mostly on how large multinational corporations (MNCs) can address environmental and social problems that arise globally along their supply chains. This article addresses political CSR of small- and medium-sized enterprises (SMEs). SMEs represent a major share of economic value creation worldwide and are increasingly exposed to regulatory gaps. Although SMEs differ substantially from MNCs in terms of organizational characteristics, behavioral guiding principles, and financial and human resources, they should still tackle such regulatory gaps by accepting a political role. Drawing on Zadek’s model of CSR-based organizational learning and Young’s concept of social connection, this study develops a conceptual framework as the basis for discussing why SMEs should become involved in political CSR, how they can manage political CSR internally and systematically, and how their progress can be assessed by third-party observers externally.