Miracle-dz/UniFAR-FTUs huggingface dataset:
Digital gaming and social networking: English teachers' perceptions, attitudes and experiences

Elements of popular culture, in particular the film and song genres, have already been integrated into the senior curriculum in Hong Kong. While academic researchers advocate the inclusion of online social networking and video gaming as curricular alternatives to connect learners to digital literacy practices, its reception by teachers has yet to be fully explored. This paper reports on an action research carried out by 34 Hong Kong English teachers on video gaming and social networking. Though the teachers believed their students frequently engaged in such popular activities, they had strong reservations concerning classroom application, in particular the values of online gaming and the dangers of online social networking. Through a survey, interviews, lived experience, online journal entries and responses and reflection, these teachers explored the two popular cultural practices for personal experience, pedagogical potential and professional development. The teachers' own private engagement with such popular cultural activities did not necessarily favour pedagogical consideration. The paper also discusses the pedagogical implications of seeking alternative popular cultural activities for language learning and teacher training.
The relationship between modes of governance and relational tie in new product development relationships

Purpose – This paper aims to examine the impact of trust, norm of information sharing, and vertical control on relational ties in new product development (NPD) relationships.Design/methodology/approach – Survey research was conducted to collect data from 112 NPD relationships and structural equation modeling was conducted to test the hypotheses.Findings – The results suggest that trust and norms of information sharing are positively related to relational ties, while vertical control and relational ties are negatively related. Three independent variables (i.e. trust, norm of information sharing, and vertical control) could significantly predict relational ties. It was also found that there are threshold effects for independent variables as they influence relational ties.Originality/value – The study enhances the understanding of NPD relationships by examining the key modes of governance through which relational ties are influenced.
Linking emotional dissonance and organizational identification to turnover intention and emotional well‐being: A study of medical representatives in India

Influencing customers' perception of service quality through service interaction is becoming imperative for organizations to sustain competitive advantage. As a result, the critical challenge before many organizations is to retain employees in service occupations and promote their well-being. This study examined the relationship of organizational identification and emotional dissonance with turnover intention and well-being among a sample of 468 medical representatives in the Indian pharmaceutical industry. Drawing from the conservation of resource theory, this study shows that apart from its direct effect, emotional dissonance has a mediating effect on the relationship of organizational identification with turnover intention and emotional well-being. Contributions of this study to the theory and practice of human resource management (HRM) are discussed. © 2010 Wiley Periodicals, Inc.
Selective Trading of Available-for-Sale Securities: Evidence from U.S. Commercial Banks

Abstract This paper examines the selective trading of available-for-sale (AFS) securities by U.S. banks after the implementation of fair value accounting under Statement of Financial Accounting Standards No. 115, Accounting Standards Codification Topic 320. Our findings suggest firms still engage in earnings management through selective selling of AFS securities despite the mandatory disclosure of unrealized security holding gains and losses in their financial statements. Such activities do not appear to be driven by the lack of reliability of the fair value measure. Instead, the degree of earnings management varies significantly with the reporting format of unrealized AFS security holding gains and losses. We find evidence of earnings management among banks that choose to report unrealized holding gains and losses in the statement of shareholders’ equity. By contrast, we find no such evidence among banks disclosing unrealized holding gains and losses in the income statement.
Small Modular Infrastructure

In this article we argue that advances made in automation, communication, and manufacturing portend a dramatic reversal of the “bigger is better” approach to cost reductions prevalent in many basic infrastructure industries; for example, transportation, electric power generation, and raw material processing. We show that the traditional reductions in capital costs achieved by scaling up in size are generally matched by learning effects in the mass production process when scaling up in numbers instead. In addition, using the U.S. electricity generation sector as a case study, we argue that the primary operating cost advantage of large unit scale is reduced labor, which can be eliminated by employing low-cost automation technologies. Finally, we argue that locational, operational, and financial flexibilities that accompany smaller unit scale can reduce investment and operating costs even further. All of these factors combined imply that with current technology, economies of numbers may well dominate economies of unit scale. Yet realizing the full potential of small unit scale will require technologists and business leaders to develop a new ability to “think small. ”
Growth and Productivity in ASEAN Countries

This study examines the nature of the growth process in the ASEAN countries, and particularly whether it has been generated primarily by more inputs or by productivity gains. It uses internationally comparable data and explores an alternative method for estimating the capital and labor factor shares. The results, contradicting some previous studies, indicate a very impressive growth rate of TFP in Singapore, Thailand, and Malaysia, a relatively strong rate for Indonesia, and a negative rate for the Philippines. This study argues that the results of previous studies were driven mainly by the fact that they relied on national accounts data for measures of various variables and, in particular, the factor income shares of capital and labor.
Empirical study on continuance intentions towards E-Learning 2.0 systems

Although E-Learning 2.0 has played a significant role in training and development within the organisational environment, after an initial acceptance, its use is frequently discontinued. Prior studies offered insights into participation in E-Learning; however, there is limited research on continuance intention towards E-Learning 2.0 systems in organisational contexts. Furthermore, the most widely used research models, such as technology acceptance model (TAM), neglect the interactive social processes in E-Learning 2.0. Therefore, this study proposes a unified model integrating the TAM, the information system success model and social motivation theories to investigate continuance intentions towards E-Learning 2.0 in an organisational context. A sample of 284 participants from companies in China that have already implemented E-Learning 2.0 systems took part in this study. Structural equation modelling was conducted to test the research hypotheses. The results show that the unified model provides a more comprehensive understanding of the cognitive processes and behaviours related to this context: (1) perceived usefulness and attitude were critical to the continuance intention towards an E-Learning 2.0 system; (2) perceived usefulness was a significant mediator of the effects from perceived ease of use, information quality and social influence on continuance intention; (3) perceived ease of use, information quality and social influence were found to play important roles in predicting the continuance intention; (4) system quality played an important role in affecting the perceived ease of use; and (5) unexpectedly, social motivations had no significant effect on attitude.
Excess volatility and closed‐end fund discounts

Purpose - The purpose of this paper is to examine the conditions under which discount risk leads to closed-end funds trading at a discount. Design/methodology/approach - A model of investor portfolio choice is developed in which investors face proportional fees for holding managed funds but fixed transaction fees for purchasing other risky assets. The conditions under which investors will hold shares in closed-end funds are derived. Findings - It is shown that, with fixed transaction costs in the market for risky assets, investors with wealth below a certain threshold will hold pooled index funds that charge a proportional fee, rather than the market portfolio chosen by wealthier investors. If a portfolio of closed-end index funds yields greater volatility of returns to investors than open-end index funds (i.e. displays “excess volatility”), and charges the same fees, the closed-end funds need to trade at a discount in equilibrium to attract buyers. The same applies to actively managed funds if higher fees fully reflect extra expected returns from the managers' skill. Practical implications - A primary determinant of closed-end fund discounts is discount volatility and co-movement across funds. Originality/value - Until now it has been argued that discount risk needs to be systematic (correlated with market returns) to be priced. The evidence that discount risk is systematic is weak. There is strong empirical evidence of excess volatility and co-movement of discounts across closed-end funds, which in our model are a sufficient condition for funds to trade at a discount, under plausible assumptions. This model thus provides a stronger argument that discount risk explains why discounts exist.
Economic growth, foreign direct investment and corruption in developed and developing countries

Purpose – The purpose of this paper is to examine the relationship between economic growth, foreign direct investment (FDI) and corruption.Design/methodology/approach – Data for 42 developing countries and 28 developed countries is analyzed using panel dynamic ordinary least squares.Findings – FDI has a significant influence on economic growth in both the short run and the long run for developing and developed countries. In the cases of the developing economies, lower levels of corruption enhance the impact that FDI has on economic growth.Originality/value – The study links corruption to the impact of FDI on economic growth.
Age and sex differences in human skeletal muscle: Role of reactive oxygen species

Previous studies, conducted on experimental animals, have indicated that reactive oxygen species (ROS) are involved in the aging process. The objective of this work was to study the relationship between oxidative damage and human skeletal muscle aging, measuring the activity of the main antioxidant enzymes superoxide dismutase (total and MnSOD), glutathione peroxidase (GPx) and catalase in the skeletal muscle of men and women in the age groups: young (17–40 years), adult (41–65 years) and aged (66–91 years). We also measured glutathione and glutathione disulfide (GSH and GSSG) levels and the redox index; lipid peroxidation and protein carbonyl content. Total SOD activity was lower in the 66–91 year-old vs. the 17–40 year-old men; MnSOD activity was significantly greater in 66–91 year-old vs. 17–40 year-old women. GPx activity remained unchanged. The activity of catalase was lower in adults than in young men but higher in the aged. We observed no changes in GSH levels and significantly higher GSSG levels only in aged men vs. adult men, and a significant decrease in aged women vs. aged men. The protein carbonyl content increased significantly in the 41–65 and 66–91 year-old vs. the 17–40 year-old men. Finally, young women have lower lipid peroxidation levels than young men. Significantly higher lipid peroxidation levels were observed in aged men vs. both young and adult men, and the same trend was noticed for women. We conclude that oxidative damage may play a crucial role in the decline of functional activity in human skeletal muscle with normal aging in both sexes; and that men appear to be more subject to oxidative stress than women.
Cognitive–behavioural therapy and return-to-work intervention for patients on sick leave due to common mental disorders: a randomised controlled trial

Objectives Common mental disorders (CMDs) cause great individual suffering and long-term sick leave. Cognitive–behavioural therapy (CBT) effectively treats CMDs, but sick leave is not reduced to the same extent as psychiatric symptoms. Research results regarding return-to-work interventions (RTW-Is) and their effect on sick leave are inconclusive. The aim of this study was to evaluate CBT, a RTW-I and combined CBT and RTW-I (COMBO) for primary care patients on sick leave due to CMDs. Methods Patients with CMDs (n=211) were randomised to CBT (n=64), RTW-I (n=67) or COMBO (n=80). Sick-leave registry data after 1 year and blinded Clinician’s Severity Rating (CSR) of symptoms post-treatment and at follow-ups after 6 and 12 months were primary outcomes. Results There was no significant difference between treatments in days on sick leave 1 year after treatment start (mean difference in sick-leave days range=9–27). CBT led to larger reduction of symptoms post-treatment (CSR; Cohen’s d=0.4 (95% CI 0.1 to 0.8)) than RTW-I, whereas COMBO did not differ from CBT or RTW-I. At follow-up, after 1 year, there was no difference between groups. All treatments were associated with large pre-treatment to post-treatment improvements, and results were maintained at 1-year follow-up. Conclusion No treatment was superior to the other regarding reducing sick leave. All treatments effectively reduced symptoms, CBT in a faster pace than RTW-I, but at 1-year follow-up, all groups had similar symptom levels. Further research is needed regarding how CBT and RTW-I can be combined more efficiently to produce a larger effect on sick leave while maintaining effective symptom reduction.
Privately Versus Publicly Held Asset Investment Performance

Classic asset pricing is problematic as a method to assess privately held asset investment performance. We propose an alternative approach that involves adjusting the characteristics of assets constituting an index or portfolio to match the asset characteristics of a reference index or portfolio. This approach is applied to commercial real estate, where we create an index of REIT returns to compare to the NCREIF index. To enhance comparability, return indices are adjusted for partial-year financial data, leverage, asset mix and fees. Adjusted results over a 1980-1998 sample period show general convergence between the indices, although an annual return difference of over three percentage points remains in favor of public market asset ownership. Possible causes of the investment performance gap include liquidity and geography as missing risk factor adjustments, an unrepresentative sample period, and the form in which commercial real estate assets are held. Copyright 2005 by the American Real Estate and Urban Economics Association
Life Cycle Assessment of Diesel and Electric Public Transportation Buses

The Clean Air Act in the United States identifies diesel‐powered motor vehicles, including transit buses, as significant sources of several criteria pollutants that contribute to ground‐level ozone formation or smog. The effects of air pollution in urban areas are often more significant due to congestion and can lead to respiratory and cardiovascular health impacts. Life cycle assessment (LCA) has been utilized in the literature to compare conventional gasoline‐powered passenger cars with various types of electric and hybrid‐powered alternatives, however, no similarly detailed studies exist for mass transit buses.
Behavior of aluminum in aluminum welders and manufacturers of aluminum sulfate--impact on biological monitoring.

OBJECTIVES The suitability of determining aluminum in serum or urine as a form of biological monitoring was critically assessed. METHODS Airborne and internal aluminum exposure was assessed for 12 aluminum welders in a shipyard and 5 manufacturers of aluminum sulfate. Particles were characterized with X-ray diffraction and scanning electron microscopy. Aluminum in air and biological samples was analyzed using electrothermal atomic absorption spectrometry. Basic toxicokinetic features were inferred from the data. RESULTS The mean 8-hour time-weighted average concentration of aluminum was 1.1 (range 0.008-6.1) mg/m(3) for the shipyard and 0.13 (range 0.02-0.5) mg/m(3) for the aluminum sulfate plant. Welding fume contained aluminum oxide particles <0.1 microm in diameter and their agglomerates, whereas bauxite and aluminum sulfate particles ranged from 1 to 10 microm in diameter. The shipyard welders' mean postshift serum and urinary concentrations of aluminum (S-Al and U-Al, respectively) were 0.22 and 3.4 micromol/l, respectively, and the aluminum sulfate workers' corresponding values were 0.13 and 0.58 micromol/l. Between two shifts, the welders' S-Al concentration decreased by about 50% (P<0.01), but their U-Al concentration did not change (P=0.64). No corresponding temporal changes occurred among the aluminum sulfate workers. After aluminum welding at the shipyard had ceased, the median S-Al concentration decreased by about 50% (P=0.007) within a year, but there was no change (P=0.75) in the corresponding U-Al concentration. CONCLUSIONS About 1% of aluminum in welding fume appears to be rapidly absorbed from the lungs, whereas an undetermined fraction is retained and forms a lung burden. A higher fractional absorption of aluminum seems possible for aluminum sulfate workers without evidence of a lung burden. After rapid absorption, aluminum is slowly mobilized from the lung burden and dominates the S-Al and U-Al concentrations of aluminum welders. For kinetic reasons, S-Al or U-Al concentrations cannot be used to estimate the accumulation of aluminum in the target organs of toxicity. However, using U-Al analysis to monitor aluminum welders' lung burden seems practical.
Second-order Beliefs and the Individual Investor

In a panel survey of individual investors, we show that investors’ second-order beliefs—their beliefs about the return expectations of other investors—influence investment decisions. Investors who believe others hold more optimistic stock market expectations allocate more of their own portfolio to stocks even after controlling for their own risk and return expectations. However, second-order beliefs are inaccurate and exhibit several well-known psychological biases. We observe both the tendency of investors to believe that their own opinion is relatively more common among the population (false consensus) and that others who hold divergent beliefs are considered to be biased (bias blind spot).
Teaching Probability with Graphic Calculator Instructional Approach

Positive effects have been reported when graphic calculator (GC) is used in Mathematics classrooms as it influences the way Mathematics is taught and learned. This study aims to examine the effects of GC instructional approach on students’ Probability performance, particularly for students with different levels of Mathematics performance. Two groups of students were involved in this study; Group A adopted the GC instructional approach while group B used the conventional teaching approach. Students from different Mathematics performance levels, particularly the low-performing students, gained benefits when the GC instructional approach was adopted in learning Probability.
Glucosinolates in ten cultivars of Chinese kale (Brassica alboglabra L.H Bailey) seperation and identification by HPLC-PAD-ESI/MS

A little information is available on the kinds and contents of glucosinolate (GS) in Chinese kale (Brassica alboglabra L.H.Bailey). The objectives were to separate and identify the GSs in Chinese kale by HPLC-PAD-ESI/MS, and determine the variety of GSs in ten cultivars widely grown in China. Eleven GSs were separated and identified in bolting stems of Chinese kale among ten cultivars, including seven aliphatic GSs and four indolyl GSs. Total GS content in bolting stem varied significantly and ranged from 5.21 to 11.92 µmol g−1 DW among ten cultivars of Chinese kale. The aliphatic GSs were predominant, representing 81.63% of the total glucosinolate content on average. The presence of high concentration of sinigrin, glucoraphanin, glucoiberin, and glucobrassicin in bolting stems warrant further research into their potential use to enhance the level of these important phytochemicals in Chinese kale.
Pricing European and American Derivatives under a Jump-Diffusion Process: A Bivariate Tree Approach

Abstract We develop a straightforward procedure to price derivatives by a bivariate tree when the underlying process is a jump-diffusion. Probabilities and jump sizes are derived are derived by matching higher order moments or cumulants. We give comparisons with other published results along with convergence proofs and estimates of the order of convergence. The bivariate tree approach is particularly useful for pricing long-term American options and long-term real options because of its robustness and flexibility. We illustrate the pedagogy in an application involving a long-term investment project.
Involvement of c-Jun-JNK Pathways in the Regulation of Programmed Cell Death of Developing Chick Embryo Spinal Cord Motoneurons

Key features of developmentally regulated programmed cell death (PCD) have been described for the first time in the chick nervous system. JNK/c-Jun pathway was involved in early events determining normal and pathological neuronal death as shown in experimental models. In the chick embryo, PCD of motoneurons (MNs) in ovo occurs within a well-defined temporal window and can be subjected to experimental manipulation. Taking advantage of this in vivo system, we explored the role of c-Jun and JNK pathway in the regulation of PCD in MNs. By using specific antibodies against phospho-c-Jun (Ser 63, 73) and JNK we demonstrated that before MNs acquire apoptotic phenotype there is an increase in c-Jun. Blockage of neuromuscular activity by the GABA agonist muscimol reduces PCD and diminishes c-Jun immunoreactivity in MNs. Extensive induction of PCD, either due to injection of β-bungarotoxin or limb bud removal, is also preceded by an increase in c-Jun immunoreactivity that is also associated with upregulation of phospho-c-Jun and JNK. Translocation of JNK from cytoplasm to MN nuclei was also detected. After acute application of β-bungarotoxin, which is a strong apoptotic stimulus for MNs, c-Jun phosphorylation occurs on serine 73, whereas serine 63 is the main site for c-Jun phosphorylation after limb bud removal. These results demonstrated that the JNK/c-Jun pathway is involved in the decision phase of normal and induced apoptosis in MNs. Pharmacological interventions involving this pathway should be explored as a potential therapeutic target for promoting MN survival.