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I review the existing literature in international trade that uses Indonesian firm-level data, particularly the Survei Tahunan Perusahaan Industri Pengolahan (Annual Manufacturing Survey) compiled b...

Web-based technology has proven itself indispensable in education, especially in distance education and in developing countries. Technological advances and the Covid-19 pandemic have forced higher education institutions to be innovative in delivering education in their countries. This paper seeks to demonstrate the role and value of e-portfolios as an alternative teaching and learning tool in distance education and the online environment, especially in developing countries. A systematic review of peer-reviewed academic studies of e-portfolios between 2010 and 2020 was conducted. A total of 18 papers were selected according to the inclusion criteria. The review shows that the use of e-portfolios is still a relatively new trend in developing countries. The study also revealed that e-portfolios can infuse important skills such as self-directed learning, critical thinking and lifelong learning. These results have the potential to help institutions to creatively design appropriate support tools and strategies alongside the implementation of e-portfolios in their contexts.

Our study investigates the interlink between liquidity, corporate governance and firm value with the adoption of meta-analysis. The final sample consists of 428 studies extracted from 55 papers, covering 632,196 firm-year observations in a worldwide scope. The diversity in data is believed to reduce possible homogeneity due to regional or time period concentration. Using random-effects model, it is reported that both illiquidity factors (Spread and Amihud illiquidity) can significantly worsen the performance of a firm, while the corporate governance – firm value connection is significantly positive via three out of four factors (Corporate governance index, Board size and Institutional ownership). Besides studying the overall relationship direction, the paper also looks into its heterogeneity. The existence of heterogeneity is confirmed in all liquidity – firm value and governance – firm value relationship. The running of meta-regression indicates that both illiquidity factors are significantly moderated by most of the examined paper characteristics, whilst only two out of four corporate governance indicators (Corporate governance index and Institutional ownership) are significantly altered.

This article aims to contextualise the inherent resilience of Central Eurasian states through the exploration of their particular history. The main purpose is to ground the ideas of resilience and capacity building in the context of the geography and ecology of Central Eurasia thus confronting the current views of the need for making these communities resilient by borrowing European, Western or global ‘best practice’ in order to achieve stability and development. This paper offers an overview of the history of the region to bring into focus the ‘local’ Central Eurasian milieu. The sophisticated tapestry of understanding, action and strategies developed over centuries has made this region resilient in the face of unpredictability caused by natural and manmade events. This paper seeks to locate how the region has consistently overcome obstacles in its long history of inhabiting a disparate space. We apply the term intercalation here to describe the emergence of a collective identity from strongly interacting ingredients that represents the inherent resilience of the region. Consequently, the focus is on the ways in which communities within the region connect, cooperate and build nodes of interaction to achieve prosperity and development.

The verifications of current-state opacity (CSO) and initial-state opacity (ISO) in discrete event systems (DESs) both suffer from the curse of dimensionality, as these issues were proved to be PSPACE-complete. Hence, how to reduce the state space is crucial. In this paper, we investigate CSO and ISO in modular DESs, which consist of several individual components. Necessary and sufficient conditions of CSO and ISO for modular DESs are derived under the assumption that all synchronous events are observable by each components of modular DESs. Moreover, we prove that the initial state estimator of modular system is isomorphic to the synchronous composition of initial state estimators for individual components. These results offer us the opportunity to reduce the complexity in verifying the opacity of modular DESs.

Efficient bandwidth utilization is significant in new communication systems where secondary users can be used besides of primary users considering interference issues and idle state of primary users. Using secondary users as relays to transmit their own signals in addition to the primary signals can be applied for more reliability of the system where opportunistic relay selection can significantly enhance the performance of the system. The best-condition secondary user is selected as the optimum relay for retransmission of primary/secondary signal. Outage probability is analyzed in this paper based on decode and forward techniques in secondary users while the closed-form statement for outage probability is provided and verified by numerical evaluations.

Technological advances in tea production are critical to meet global demands for tea consumption. To illuminate differences in the scientific and commercial relevance of research programs between major tea-related research organizations around the world, we conducted a bibliometric analysis comparing the scientific outputs, including peer-reviewed publications and patents, of six major research organizations published between January 01, 2008 and July 11, 2020. For this competitive ranking analysis, we examined a number of papers, research topics, academic influence, capacity for development, capacity for collaboration, and capacity for technological innovation. Among the six research organizations, Anhui Agricultural University (in China) had the most publications, while the Chinese Academy of Agricultural Sciences, Tea Research Institute showed a higher capacity for development. The Council for Scientific and Industrial Research (in India) and the University of Shizuoka (Japan) both showed high academic influence, while the University of Shizuoka, Tea Research Association Tocklai and National Agriculture and Food Research Organization (Japan) showed a high capacity for collaboration. The Chinese Academy of Agricultural Sciences, Tea Research Institute applied for the most patents, while the Council for Scientific and Industrial Research applied for the most international patents.

The goal of this paper is to evaluate the informational content of sentiment extracted from news articles about the state of the economy. We propose a fine-grained aspect-based sentiment analysis that has two main characteristics: 1) we consider only the text in the article that is semantically dependent on a term of interest (aspect-based) and, 2) assign a sentiment score to each word based on a dictionary that we develop for applications in economics and finance (fine-grained). Our data set includes six large US newspapers, for a total of over 6.6 million articles and 4.2 billion words. Our findings suggest that several measures of economic sentiment track closely business cycle fluctuations and that they are relevant predictors for four major macroeconomic variables. We find that there are significant improvements in forecasting when sentiment is considered along with macroeconomic factors. In addition, we also find that sentiment matters to explains the tails of the probability distribution across several macroeconomic variables., Comment: 46 pages, 11 figures, to be published in Journal of Business & Economic Statistics

Most patients with psoriasis present with localized mild-to-moderate disease. In this case, the application of topical treatments in the first-line setting is recommended in most cases. Among different topical options, the fixed-dose combination of betamethasone dipropionate (BD) and vitamin D analogue (Cal) aerosol foam (Enstilar®, Leo Pharma) is approved as first-line topical therapy for the treatment of psoriasis in USA and the EU, due to its high efficacy and its favorable administration scheme. The PSO-LONG was the first trial to report on the long-term efficacy and safety of the Cal/DB foam treatment for the proactive management of psoriasis and now, the indications of Cal/BD foam included its use in the psoriasis maintenance treatment. However, the precise role of this treatment and the potential therapeutic schemes in the long-term management of psoriasis need further clarification. This Position Paper, authored by a group of Italian Expert Dermatologists, critically discusses the long-term management of psoriasis with Cal/BD foam in clinical practice. In particular, the biological rationale in the proactive treatment with Cal/BD foam and current evidence regarding this therapeutic approach are presented, along with its application also in patients with moderate-to-severe disease, difficult-to-treat lesions, or within combination regimens. In addition, strategies to improve adherence to long-term treatment of psoriasis are discussed,.

A recent survey of Europe’s highway infrastructure has concluded that almost half of Europe’s bridges are nearing the end of their design live. Work in the wider Structural Health Monitoring sector is aiming to develop reliable and cost-effective methods for verifying condition, remaining service life and safety of ageing structures. Most bridge condition assessment methods are based on deflection, acceleration or strain measurements. This paper looks at the possibility of using rotation measurements as a main parameter to identify damage. This study looks at numerical analyses of a moving point load on a one-dimensional bridge model to provide the theoretical basis of the proposed damage detection method. It is shown that when local damage occurs, even when it is remote from a sensor location, it results in an increase in the magnitude of rotation measurements. This study looks at how best to exploit this fact for damage detection. A number of damage scenarios, sensor locations, and load arrangements are investigated in this study and their influence on the ability of the algorithm to detect damage are reported.

This study explores urban forestry as a maintenance practice capable of enhancing more-than-human commons in the city. Focusing on the places associated with tree care, the methodology takes as a case study the Tokyo Metropolitan Parks, conducting quantitative and qualitative analysis through the means of immersive field work and questionnaires, to reveal how urban forestry practices materialize within the parks. Regarding the spatial relations between humans and/or non-humans with resources, different Urban Forestry Elements (UFE) have been found, as well as their collection in groups within the parks forming Urban Forestry Assemblages (UFA). The paper creates a comprehensive framework that reveals these places for urban forestry as important beacons for urban commoning.

In this paper, I empirically study the effect of chain affiliation on product variety and price in the movie theater industry. Using longitudinal data on Korean movie theaters, I find that movie variety in a theater increases by 3.2-5.5 percent after the theater joins a chain. Admission price, however, does not change after chain affiliation, implying that consumers benefit from the organizational form change. These results are consistent with the growing dominance of chain-affiliated theaters in recent decades. The results also suggest that the regulatory authorities should carefully examine the trade-off between increase in market power and efficiency gains when evaluating the implications of chain affiliation.

In computational and applied statistics, it is of great interest to get fast and accurate calculation for the distributions of the quadratic forms of Gaussian random variables. This paper presents a novel approximation strategy that contains two developments. First, we propose a faster numerical procedure in computing the moments of the quadratic forms. Second, we establish a general moment-matching framework for distribution approximation, which covers existing approximation methods for the distributions of the quadratic forms of Gaussian variables. Under this framework, a novel moment-ratio method (MR) is proposed to match the ratio of skewness and kurtosis based on the gamma distribution. Our extensive simulations show that 1) MR is almost as accurate as the exact distribution calculation and is much more efficient; 2) comparing with existing approximation methods, MR significantly improves the accuracy of approximating far right tail probabilities. The proposed method has wide applications. For example, it is a better choice than existing methods for facilitating hypothesis testing in big data analysis, where efficient and accurate calculation of very small $p$-values is desired. An R package Qapprox that implements related methods is available on CRAN.

This paper explores how university staff in Denmark, Germany, and England perceived higher education (HE) policy as impacting the experience of being a student in their respective countries. While,...

Health is becoming an increasingly important aspect of built environment design. We aim to bridge the gap between existing knowledge in medicine and its potential applications. This paper tests the extent to which Active Urbanism can facilitate gaining and maintaining bone mass widely across the population through encouraging serendipitous high impact exercise. Based on a review of successful high impact exercise programs, we run a biokinetics experiment in a laboratory measuring ground reaction forces to match those based on field sociological pilot studies in the urban environment. Considering data collected, Active Urbanism can increase the bone density of an average child not previously involved in sport by 12% in 10 years, and that of an average adult by 2.8% in 10 years. This new parameter has the potential to support infrastructure and landscape designers to optimize their plans and will need further examination by communities of these practices.

This research uses the theoretical framework of CALL normalisation developed by Bax (2003) and Chambers and Bax (2006) to offer a systematic review (Gough et al., 2012) of the uses and spread of data-driven learning (DDL) and corpora in language learning and teaching across five major CALL-related journals during the 2011–2015 period. DDL research represented 4.2% of all published papers on CALL during this time frame. The main focus of research was found to be the use of concordancing and collocations when developing university students’ writing skills. Contrary to previous research, access to technology was not identified as an impeding factor for normalisation. Syllabus integration and a lack of contribution from language teachers other than researchers emerged as threats to the normalisation of corpora use. Further theorisation is needed if DDL and corpora are to expand their influence on mainstream second language education.

Automated steering technology offers significant benefits to the safety and efficiency of vehicles, but desire to keep the human driver in the loop requires better understanding of the interaction between driver and vehicle. An existing noncooperative-game-theoretic framework for modelling such interaction is revisited in this paper, leading to the development of two alternative driver steering control models. Both models bears Nash-equilibrium properties but involve different assumptions about driver steering control behaviour. A simulation study is performed to demonstrate the difference between the two driver models in terms of their simulated driver steering angles and vehicle lateral motions. An experiment using a fixed-base driving simulator is conducted to measure six test subjects’ steering control behaviour in response to the lane- change manoeuvres generated by an automated steering control system. The two proposed driver models are fitted to the measured driver steering angle data to investigate their capabilities for representing individual driver’s steering control behaviour. Key model parameters are identified following a system identification procedure. It is found that the two driver models have equivalent capability for capturing the trend exhibited in all the six test subjects’ steering angle histories, but less good at reproducing the severe overshoot or oscillation involved in two subjects’ measured steering angles. It is found that the inclusion of an arm neuromuscular system model can improve the performance of the proposed driver models on representing human driver steering control behaviour.

Calls continue for the decolonisation of higher education (HE). Based on internationalisation debates, a research team from Africa, Europe and Latin America reviewed published decolonisation voices. Using bibliometric analysis and a conceptual review of abstracts, the authors examined the drivers framing decolonisation in HE and identified the voices in those debates which involved the historically oppressed and those wishing to elicit change in these debates. The paper recognises the importance for decolonisation in education as the tensions explored by the authors often intersect through HE into other domains of the political, social, economic and culturally important areas for replication and change in society.