The reciprocal relationship between motivation and self-regulation: A longitudinal study on academic performance

While previous studies have examined the single directional effects of motivation constructs in influencing students' use of self-regulatory strategies, few attempts have been made to unravel their interrelationship in a unified framework. In this study we adopt the social cognitive perspective and examine the reciprocal interplay between motivation and self-regulation constructs (as measured by the Learning and Study Strategies Inventory) in influencing academic performance. Based on two waves of measurements obtained from a large sample of undergraduates from a university in Hong Kong, a cross-lagged structural equation model identified significant reciprocal effects whereby students' self-regulation predicted their subsequent motivation. After controlling for prior academic achievement, student motivation was also found to be the strongest predictor of academic performance. The findings from this study have major implications for the importance placed on motivation and self-regulation as means of facilitating academic success.     

Understanding and reducing the fear of COVID-19

Journal of Zhejiang University-SCIENCE B -     

Developing,Evaluating and Demonstrating the Use of a Conceptual Survey in Mechanical Waves

An understanding of mechanical waves is a pre‐requisite for the study of many topics in advanced physics, and indeed in many other disciplines. There have been many research studies in mechanical waves, all of which have revealed that students have trouble with the basic concepts. Therefore, in order for teachers to prepare appropriate instruction for their classes, it is useful to diagnose their students' conceptions—if possible before they enter class. It is for this purpose that many diagnostic instruments have been developed, often in the form of multiple‐choice tests. In this study, we have used the open‐ended Wave Diagnostic Test to develop a multiple‐choice conceptual survey in an evolutionary manner. The two‐year development procedure included open‐ended surveys and interviews involving 299 Thai students and 88 Australian students. The final version, called the Mechanical Waves Conceptual Survey, has been administered to 632 Australian students from high school to second‐year university and 270 Thai high school students. Standard statistical analyses show that the survey is reliable and valid. Further validity checks, including consultation with experts, were also carried out. The survey has four subtopics—propagation, superposition, reflection, and standing waves—and the teachers can choose the subtopics relevant for their students. In this paper we also demonstrate the use of a typical survey question to test students' conceptual understanding and identify common alternative conceptions.     

Two-dimensional ferromagnetic superlattices

Mechanically exfoliated two-dimensional ferromagnetic materials (2D FMs) possess long-range ferromagnetic order and topologically nontrivial skyrmions in few layers. However, because of the dimensionality effect, such few-layer systems usually exhibit much lower Curie temperature (T_C) compared to their bulk counterparts. It is therefore of great interest to explore effective approaches to enhance their T_C, particularly in wafer-scale for practical applications. Here, we report an interfacial proximity-induced high-T_C 2D FM Fe₃GeTe₂ (FGT) via A-type antiferromagnetic material CrSb (CS) which strongly couples to FGT. A superlattice structure of (FGT/CS)_n, where n stands for the period of FGT/CS heterostructure, has been successfully produced with sharp interfaces by molecular-beam epitaxy on 2-inch wafers. By performing elemental specific X-ray magnetic circular dichroism (XMCD) measurements, we have unequivocally discovered that T_C of 4-layer Fe₃GeTe₂ can be significantly enhanced from 140 K to 230 K because of the interfacial ferromagnetic coupling. Meanwhile, an inverse proximity effect occurs in the FGT/CS interface, driving the interfacial antiferromagnetic CrSb into a ferrimagnetic state as evidenced by double-switching behavior in hysteresis loops and the XMCD spectra. Density functional theory calculations show that the Fe-Te/Cr-Sb interface is strongly FM coupled and doping of the spin-polarized electrons by the interfacial Cr layer gives rise to the T_C enhancement of the Fe₃GeTe₂ films, in accordance with our XMCD measurements. Strikingly, by introducing rich Fe in a 4-layer FGT/CS superlattice, T_C can be further enhanced to near room temperature. Our results provide a feasible approach for enhancing the magnetic order of few-layer 2D FMs in wafer-scale and render opportunities for realizing realistic ultra-thin spintronic devices.     

Wireless Cities: Local Governments' Involvement in the Shaping of Wi-Fi Networks

This study examines the role of local government in the deployment of municipal Wi-Fi networks from the perspective of path dependency and social shaping of technology. By employing a case study method, the study investigated ways in which municipal networks in three cities in the United States were constructed and operated. The study found that the technology models developed from each city's past experiences in communication technologies played an essential role in the rollout of the current Wi-Fi networks. It also uncovered that social and political factors accounted for the different characteristics of each city's network implementation.     

The relationship between teacher value orientations and engagement in professional learning communities

The development of teacher professional learning communities (PLC) has attracted growing attention among practitioners, policy-makers and researchers. The aims of this study were to identify typologies of professional learning teams based on measures of professional learning engagement, and assess their linkages with teachers’ value orientations. Based on data obtained from 408 professional learning teams in Singapore schools, cluster analysis identified three types of professional learning teams: highly engaged, moderately engaged and less engaged. These three profiles differ mainly in terms of level of endorsement for the four measures of professional learning engagement (collective focus on student learning, collaborative learning, reflective dialogue and shared values and vision). Results revealed that highly engaged professional learning teams reported the highest levels of endorsement for all four engagement measures. Teachers among the learning teams in the highly engaged profile reported a significantly higher level of uncertainty avoidance than those in the moderately engaged and less engaged profiles. Teachers in the less engaged profile also reported a significantly higher level of power distance than those in the highly engaged teams. Multinomial logistic regression analysis found that team power distance and team uncertainty avoidance were significant predictors of engagement profile membership. The implications for fostering effective teacher development through more systematic support of PLC are discussed.     

Investigating the effects of gamification-enhanced flipped learning on undergraduate students’ behavioral and cognitive engagement

ABSTRACT

In recent years, flipped learning has attracted much attention around the world. This instructional approach is appealing because it can free up class time for knowledge application activities with help from the instructor and peers. However, its implementation can be fraught with challenges. Student disengagement in out-of-class activities, for example, is one of the major challenges of flipped learning. The purpose of this study is to examine whether gamification can enhance student engagement in a flipped course. A comparison study was conducted, involving two classes of undergraduate students in an Information Management course. The results indicated that students in the gamification-enhanced flipped learning group (n?=?48) were more likely to complete the pre-class and post-class activities on time than those in the non-gamified flipped learning group (n?=?48). Students in the gamification-enhanced flipped learning group also produced higher quality artifacts than the non-gamified flipped learning group in the pre-class thinking activities. Moreover, students in the gamification-enhanced flipped learning group scored significantly higher in the post-course test than did their non-gamified counterparts.     

Towards precision medicine: from quantitative imaging to radiomics

Radiology (imaging) and imaging-guided interventions, which provide multi-parametric morphologic and functional information, are playing an increasingly significant role in precision medicine. Radiologists are trained to understand the imaging phenotypes, transcribe those observations (phenotypes) to correlate with underlying diseases and to characterize the images. However, in order to understand and characterize the molecular phenotype (to obtain genomic information) of solid heterogeneous tumours, the advanced sequencing of those tissues using biopsy is required. Thus, radiologists image the tissues from various views and angles in order to have the complete image phenotypes, thereby acquiring a huge amount of data. Deriving meaningful details from all these radiological data becomes challenging and raises the big data issues. Therefore, interest in the application of radiomics has been growing in recent years as it has the potential to provide significant interpretive and predictive information for decision support. Radiomics is a combination of conventional computer-aided diagnosis, deep learning methods, and human skills, and thus can be used for quantitative characterization of tumour phenotypes. This paper discusses the overview of radiomics workflow, the results of various radiomics-based studies conducted using various radiological images such as computed tomography (CT), magnetic resonance imaging (MRI), and positron-emission tomography (PET), the challenges we are facing, and the potential contribution of radiomics towards precision medicine.     

Singaporean gifted adolescents under scrutiny: The gender factor

Research on the sex-role problems of gifted adolescents rarely lifts its sight beyond Western developed countries, making generalizations to the Third World suspect. The present study, by exploring the relationship between gender and adjustment among gifted adolescents in Singapore, hopes to extend the consideration of developmental sex-role issues to a society different from the West. Specifically, it reports that Singaporean gifted girls, like some of their Western counterparts, had difficulty in reconciling their giftedness with societal notions of femininity.Conceivably, this conflict placed them on the threshold of stress, leaving them more vulnerable than the gifted boys to adjustment problems. In addition, having internalized the gender stereotypic view that academic excellence was less important to them than to the boys, the gifted girls might inadvertently put ceilings on their own achievements. The paper concludes with several remedies for educators, counsellors, and parents to help gifted girls embark upon their road to self-fulfilment.

---

Zusammenfassung Forschungen über die Probleme begabter Jugendlicher bezüglich geschlechtsspezifischer Rollen erfassen selten Zielgruppen außerhalb der entwickelten westlichen Länder. Demnach wird jede Übertragung auf die dritte Welt fragwürdig. Diese Studie beabsichtigt, mit einer Untersuchung über die Beziehungen zwischen Geschlecht und Anpassungsfähigkeit unter begabten Jugendlichen in Singapur, den Kontext der Debatte über entwicklungsbezogene geschlechtsspezifische Rollen auf eine nicht-westliche Gesellschaft zu erweitern. Insbesondere wird berichtet, daß begabte singapurische Mädchen es ebenso wie westliche Mädchen schwierig finden, ihre Begabtheit mit gesellschaftsüblichen Begriffen der Weiblichkeit zu vereinbaren. Es wäre durchaus möglich, daß dieser Konflikt sie bis an die Schwelle des Stresses bringt, so daß sie für Anpassungsprobleme anfälliger als begabte Jungen sind. Indem sie die geschlechtstypische Ansicht verinnerlichen, daß wissenschaftlicher Erfolg für sie weniger bedeutsam ist als für Jungen, könnten die begabten Mädchen ihren eigenen Leistungen unbewußt Grenzen setzen. Der Artikel endet mit verschiedenen Vorschlägen, wie Pädagogen, Berater und Eltern begabter Mädchen dazu beitragen könnten, daß diese Mädchen zu ihrer Selbsterfüllung finden.

---

Résumé La recherche sur les problèmes liés au rôle des sexes des adolescents doués porte rarement son regard au-delà des pays industrialisés occidentaux, rendant les généralisations au Tiers Monde suspectes. En étudiant le rapport entre les sexes et l'adaptation chez les adolescents talentueux de Singapour, la présente étude espère étendre l'examen des problèmes de développement liés au rôle des sexes à une société différente de celles du monde occidental. En particulier, elle relate que les filles douées de Singapour, comme certaines de leurs homologues occidentales, ont des difficultés à concilier leur talent avec les notions sociales de fémininité. II est concevable que ce conflit les ait mises sous pression, les rendant ainsi plus vulnérables que les garçons doués aux problèmes d'adaptation. Par ailleurs, ayant assimilé le point de vue stéréotypé des sexes selon lequel l'excellence scolaire est moins importante pour elles que pour les garçons, il se peut que les filles douées fixent, par inadvertance, un plafond à leurs propres performances. Cet article conclut en proposant quelques remèdes aux éducateurs, conseillers et aux parents pour aider les filles capables à s'engager dans la voie qui leur permettra de s'accomplir.