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Based on the absolute dynamic topography data from the Copernicus Marine Environment Monitoring Service, this paper applies the Topographic Position Index to develop a new approach for mapping the anticyclonic eddies in the South China Sea (SCS). The results show that anticyclonic eddies are active in the deep basin of SCS, and the five selected parameters (number or frequency, lifetime, kinetic energy, amplitude, and area or radius) of anticyclonic eddies have a similar temporal variation and a similar spatial distribution pattern. (1) As for monthly variations, anticyclonic eddies are active in late spring and most active in summer. (2) The El Niño–Southern Oscillation had a stronger impact on the inter-annual variations of anticyclonic eddies in the SCS before 2013, resulting in a significant transition of inter-annual variations of these five parameters in around 2004. After 2013, most of these five parameters had a minimum in 2015 and a maximum in 2017. (3) Analyses show that the eddy activities in the SCS are significantly influenced by the monsoon wind and the western boundary current like Kuroshio. Therefore, the areas southwest of Taiwan Island and east of Vietnam are the two areas where the anticyclonic eddies are most active, with much larger eddy kinetic energy and much higher eddy amplitude. [ABSTRACT FROM AUTHOR]

Labor exports are currently considered among the most important foreign economic sectors, implying that they contribute to a country's economic development and serve as a strategic solution for employment creation. Therefore, with the support of data collected between 1992 and 2020, this paper proposes that labor exports contribute significantly to Vietnam's socio-economic development. This study also aims to employ the Backpropagation Neural Network (BPNN), k-Nearest Neighbor (kNN), and Random Forest Regression (RFR) models to analyze labor migration forecasting in Taiwan, Korea, and Japan. The study results indicate that the BPNN model was able to achieve the highest accuracy regarding the actual labor exports. In terms of these accuracy metrics, this study will aid the Vietnamese government in establishing new legislation for Vietnamese migrant workers in order to improve the nation's economic development. [ABSTRACT FROM AUTHOR]

The various possibilities that social media offers to language learners and teachers have long been recognized by researchers within the field of language instruction, and many studies have been carried out in an attempt to address and unpack its potential contributions. This paper aims to review such research on the use of mainstream social media in language teaching and learning published in "Computer Assisted Language Learning," a top tier (i.e., Q1) journal indexed in major citation index systems (e.g., Arts & Humanities Citation Index, the Social Sciences Citation Index and Scopus), between the years 2016-2020 inclusive. For the purposes of the study, a total of 23 articles that meet the selection criteria is reviewed and presented in five sections. The first section deals with the majority of the articles, which are found to be on the use of social networking in language teaching and learning. In the following sections, studies on the use of videoconferencing, wikis, blogging and forums are discussed. Collectively, the studies reviewed in this paper outline a critical role for the use of social media in language instruction and the study aims to provide valuable insights for researchers, teachers and learners.

Heeding the call to examine industrial fisheries with a migratory lens, this article explores how homeland processes in Vietnam—linked to the 2016 chemical spill—affect migrant fish workers' work on the high seas. Drawing on ethnographic fieldwork and interviews in Vietnam and Taiwan, my paper relays two findings. First, the disaster's negative consequences undermined many men and women's ability to adequately contribute to household subsistence. Second, the inability to sustain livelihoods in Vietnam compelled migrant fish workers to exchange longer, and potentially more hazardous, workdays for additional wages and wage advances. These findings illustrate the benefits of studying industrial fisheries with a transnational prospective and can be applied to other contexts, such as the ongoing COVID-19 pandemic. [ABSTRACT FROM AUTHOR]

Austronesian (AN) is the second-largest language family in the world, particularly widespread in Island Southeast Asia (ISEA) and Oceania. In Mainland Southeast Asia (MSEA), groups speaking these languages are concentrated in the highlands of Vietnam. However, our knowledge of the spread of AN-speaking populations in MSEA remains limited; in particular, it is not clear if AN languages were spread by demic or cultural diffusion. In this study, we present and analyze new data consisting of complete mitogenomes from 369 individuals and 847 Y-chromosomal single nucleotide polymorphisms (SNPs) from 170 individuals from all five Vietnamese Austronesian groups (VN-AN) and five neighboring Vietnamese Austroasiatic groups (VN-AA). We found genetic signals consistent with matrilocality in some, but not all, of the VN-AN groups. Population affinity analyses indicated connections between the AN-speaking Giarai and certain Taiwanese AN groups (Rukai, Paiwan, and Bunun). However, overall, there were closer genetic affinities between VN-AN groups and neighboring VN-AA groups, suggesting language shifts. Our study provides insights into the genetic structure of AN-speaking communities in MSEA, characterized by some contact with Taiwan and language shift in neighboring groups, indicating that the expansion of AN speakers in MSEA was a combination of cultural and demic diffusion. [ABSTRACT FROM AUTHOR]

Wolbachia is a ubiquitous endosymbiotic bacterium that manipulates insect reproduction. A notable feature of Wolbachia is male killing (MK), whereby sons of infected females are killed during development; however, the evolutionary processes by which Wolbachia acquired the MK ability remain unclear. The tea tortrix moth Homona magnanima (Tortricidae) harbours three non‐MK Wolbachia strains (wHm‐a, wHm‐b and wHm‐c) and an MK strain wHm‐t. Although wHm‐t and wHm‐c are closely related, only wHm‐t has an MK‐associated prophage region. To understand the evolutionary processes underlying the emergence of MK wHm‐t, we examined Wolbachia infections and phenotypes in 62 tortricid species collected from 39 localities across Japan, Taiwan, Vietnam and Indonesia. PCR assays detected wHm‐c relatives in 51 species and triple infection of wHm‐a, wHm‐b and wHm‐c in 31 species. Apart from Taiwanese H. magnanima, no species exhibited the MK phenotype and were positive for the wHm‐t‐specific prophage. While wHm‐t infection was dominant in Taiwanese H. magnanima, wHm‐a, wHm‐b and wHm‐c were dominant in Japanese H. magnanima populations. These results suggest that wHm‐a, wHm‐b and wHm‐c strains descended from a common ancestor with repeated infection loss and that wHm‐t evolved from the wHm‐c acquiring MK ability in allopatric populations of H. magnanima. [ABSTRACT FROM AUTHOR]

Background: Rare diseases, also referred to as orphan diseases, are characterised by their low prevalence with majority of them are chronically debilitating and life threatening. Given the low prevalence and the widely dispersed but very small patient base for each disease, there may often be a disproportion in the availability of treatments and resources to manage patients, spur research and train experts. This is especially true in Southeast Asian countries that are currently in the process of implementing or revising their universal health coverage schemes. This paper aims to examine the status of rare disease management in Southeast Asian countries. It will serve as the basis for a more active discussion on how countries in the region can address an under-recognised rare disease burden and enhance national and regional capacities.Methods: The study consists of literature reviews and key stakeholders interviews in six focus countries, including the Philippines, Singapore, Malaysia, Indonesia, Vietnam, and Thailand and five countries as best practice, comprising of France, Canada, Australia, Taiwan, and South Korea. Rare disease management initiatives across each country were examined based on the World Health Organization's framework for action in strengthening health systems.Results: The results suggest rare disease management remains challenging across Southeast Asia, as many of the focus countries face fundamental issues from basic healthcare systems to funding. Nonetheless, there are substantial improvement opportunities, including leveraging best practices from around the world and organising a multi-stakeholder and regional approach and strategy.Conclusions: Southeast Asian countries have made significant progress in the management of rare disease, but there remain key areas for substantial development opportunities. [ABSTRACT FROM AUTHOR]

The purpose of this study was to construct a scheme that makes it possible to compare the relationship between water usage, satisfaction, and physical properties in three countries. The physical properties of the shower were measured using physical properties testing apparatus of water-saving standard or scheme for shower heads issued in several water-saving countries and data for users satisfaction evaluation was acquired through bathing experiments. In this paper, we analyzed the result from Taiwanese and Vietnamese individuals to compare them to of Japanese subjects analyzed in the previous study. We compared the physical properties of showers assessed low in satisfaction by Taiwanese, Vietnamese and Japanese subjects. It was assumed that spray pattern tends to decrease satisfaction when the water volume ratio within 100 mm and 150 mm of a measuring device is located a 450 mm distance from the showerhead is low, and that, because all three countries showed the same value, it was imagined that there were no differences in the water volume ratio of high-satisfaction showerheads among three countries. On the other hand, the values of Spray Force-per-Hole, Temperature Drop, and Spray Angle were different among three countries. We speculated that these differences are affected respectively by ethnic differences in pain tolerance, thermoregulatory response and bathing habit. [ABSTRACT FROM AUTHOR]

Recent science education reforms center at having students learn the practices of scientists. In this study, we aim at exploring how science curricular documents reflect the latest updates from the "practice turn" reform. To do that, we utilize the notion of the scientist's ways of doing science as a perspective to observe the distribution of components constituting scientific practices in national science curricula. Current literature provides several curriculum analysis frameworks based on taxonomies of cognitive demands or international tests. Still, those frameworks are either not intended for science curricula or limited in indicators and hence failed to capture an updating picture of science curricula that reflect the recent practice turn. We employ multiple case study research design and qualitative content analysis approach to compare learning outcomes in Taiwan and Vietnam's two national science curricula. Results from this study offer maps of scientific practices across curricular documents and relevant suggestions for stakeholders to improve science curricula. The study opens a new direction on researching science curricula to make science learning approaching the scientist's ways in reality. [ABSTRACT FROM AUTHOR]

The photographic essay, 'Quiet Dream', by photographer and lecturer Oh Soon-Hwa, represents the culmination of years of work with young Vietnamese women during a "bride phase" in Vietnam, which refers to a period of waiting before leaving home and kin to travel overseas in order to marry foreign men, usually in Taiwan and South Korea. This series was taken on and around a small island in the region of the Mekong Delta (one of the poorest areas in Vietnam), nicknamed "Taiwan Island", where many young women are pressured to marry foreigners for various complex reasons, which the author discusses. Oh's photographic essay focuses on the beauty and serenity of the environment surrounding these women while they have to deal with diverse expectations, which includes leaving behind part of their identity, the familiar landscape, climate, language, family, friends, traditions, and way of living. Until recently, studies on marriage migration have tended to focus on remittances and the economic impact of migration. New studies adopt a more comprehensive social perspective, examining the effects of migration on the social fabric of the migrants' home community. Placed in the context of these ongoing studies, Oh's work is important in drawing attention to the lives and identities of these women (what they give up) before entering into marriage migration. My article focuses on two aspects of Oh's photographs: 1) the technique of stitched photography; and 2) the compo-sition of the photograph, particularly the choice of dress worn by the subject. Half of the portraits are stitched photographs, which is a technique that merges together several photographs to form a unique piece, with the aim of providing a wider view of the environment of the subject. This method of stitching also bears testimony to the stitched futures of these women; the hopes and dreams they harbour as foreign brides, as well as the familiar landscapes and identities they leave behind, all "stitched" together as it were, to constitute a hopeful, but also unsure, resigned and imagined future. [ABSTRACT FROM AUTHOR]

Milk vetch dwarf virus (MDV) is an important member of the genus Nanovirus and is transmitted by the aphid Aphis craccivora. MDV has multiple single‐stranded DNA genome components, each approximately 1 kb, and two or three alpha‐satellite molecules. It mainly infects plants of the legume family Fabaceae. Recently, papaya (Carica papaya) collected in Yesan, South Korea, displaying symptoms of leaf yellowing and dwarfism, was identified as a new host for MDV. To examine the geographical distribution of MDV, papaya samples with symptoms were harvested in South Korea, Vietnam, and Taiwan in August 2018, along with tomato and pepper samples grown in adjacent fields in Vietnam. The results revealed the presence of MDV not only in papaya but also in pepper and tomato. This MDV infection in members of the Solanaceae family was confirmed by Southern blot hybridization performed using a PCR product of segment S as a probe. Based on sequence analysis of three MDV components (M, S, and C3), we verified the presence of three different isolates of MDV in these three countries and homology between sequences of isolates from papaya and from members of the Solanaceae from Vietnam. Taken together, our results clearly demonstrate MDV infection in Vietnam and Taiwan for the first time and confirm that MDV can infect economically important pepper and tomato. [ABSTRACT FROM AUTHOR]

Copyright of Advances in Atmospheric Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study aims to cross-examine a model about how personality traits, personal values and perceived cultural values contribute to diversity value orientation (DVO) and attitudes toward sport provision diversity (SDA) in three countries: the United States of America (USA), Taiwan (TW) and Vietnam (VN). A questionnaire was distributed both online (via Google form) and the hard copy and it was completed by 142, 145 and 333 college students in the USA, TW and VN respectively where 48% were males. Convenience sampling was employed via mailing lists, social networks, selected courses and university lecturers. The results showed that the USA group seemed to have higher OE (open to experience), S (stimulation), SD (selfdirection) and stronger SDA than the VN group. The TW group was lower than the USA group in OE and S, but higher than the VN group in OE. The analyses of structural equation modeling showed that LPD (low power distance) played as major predictor of DVO and SDA in the model. The explained variance of DVO was 68.8%, whereas SDA was 49.1%. Comparison of the models among the three countries showed that the model worked best in the VN group. [ABSTRACT FROM AUTHOR]

The Gnamptogenys taivanensis group (Hymenoptera: Formicidae: Ectatomminae) is a species-group that contains eight described species known from southern China, Taiwan, and northern Vietnam. The taxonomy of the group remains poorly understood due to limited morphological evidence (mostly relying on the morphology of the worker caste), the complete lack of molecular evidence, as well as poor sampling effort: most of the species except G. taivanensis have so far been known only from one or two localities in southern China each, and are allopatric to each other. However, our recent collection of many colonies of G. taivanensis group from three localities (Tay Con Linh, Phia Oac - Phia Den, and Hoang Lien Son) in the northern mountainous region of Vietnam showed remarkable diversity in the external morphology of workers, even within a single locality. The present study thus aims to explore species delimitation of the G. taivanensis group in the region using a combination of phylogenetic and morphometric analyses. Phylogenetic analyses for the genome-wide sequence datasets generated by MIG-seq and morphometric analysis using Nest-Centroid (NC) clustering consistently recovered seven major lineages of the G. taivanensis group (six Vietnamese and one Taiwanese lineages), with four singleton colonies for which these analyses yielded inconsistent and complex pictures. Moreover, the sympatric occurrence of the two or three lineages in each of the three localities of northern Vietnam is indirect evidence of the presence of reproductive isolation among these lineages. These lines of evidence strongly support heterospecificity of the lineages. However, phylogenetic analysis for mitochondrial COI gene showed an almost incompatible pattern with these lineages, possibly due to incomplete lineage sorting and/or introgressive hybridisation. A future comprehensive study on a larger geographic scale is needed to clarify the placement of the singleton colonies and conduct a formal taxonomic revision of the group. [ABSTRACT FROM AUTHOR]

Copyright of Taiwanese Journal of Sociology is the property of Taiwanese Sociological Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The climatology of the mesoscale eddies in the upper layer of the South China Sea (SCS) is investigated for an understanding of its genesis using the outputs from a 1/12.5° ocean reanalysis. Employed is a recently developed multiscale energetics formalism on the basis of a multiscale window transform (MWT) and the theory of canonical transfer. Three scale windows, namely, background flow, mesoscale eddy and synoptic eddy, are differentiated, and fields on different scales are reconstructed henceforth. Diagnosis of the mesoscale eddy energy budget reveals that barotropic and baroclinic instabilities, wind work, advection and pressure work are essential ingredients of the eddy energy sources and sinks in the SCS, but their contributions vary from region to region. In the southwestern part of the SCS, the regional mesoscale eddy energy is mainly generated by barotropic instability, while in the northeastern SCS, baroclinic instability and the wind working directly on the eddies are the two dominant eddy generation processes. The eddies southwest of Taiwan are damped by outward energy transport via advection, while the decay of those southeast of Vietnam is due to pressure work. The three-scale framework also reveals that the interaction between the mesoscale eddies and higher-frequency synoptic eddies mainly serves as a sink for the mesoscale eddy energy in the SCS, except for the northeastern SCS, where significant inverse cascade of kinetic energy is found. [ABSTRACT FROM AUTHOR]

Partially fermented tea such as oolong tea is a popular drink worldwide. Preventing fraud in partially fermented tea has become imperative to protect producers and consumers from possible economic losses. Visible/near-infrared (VIS/NIR) spectroscopy integrated with stepwise multiple linear regression (SMLR) and support vector machine (SVM) methods were used for origin discrimination of partially fermented tea from Vietnam, China, and different production areas in Taiwan using the full visible NIR wavelength range (400–2498 nm). The SMLR and SVM models achieved satisfactory results. Models using data from chemical constituents' specific wavelength ranges exhibited a high correlation with the spectra of teas, and the SMLR analyses improved discrimination of the types and origins when performing SVM analyses. The SVM models' identification accuracies regarding different production areas in Taiwan were effectively enhanced using a combination of the data within specific wavelength ranges of several constituents. The accuracy rates were 100% for the discrimination of types, origins, and production areas of tea in the calibration and prediction sets using the optimal SVM models integrated with the specific wavelength ranges of the constituents in tea. NIR could be an effective tool for rapid, nondestructive, and accurate inspection of types, origins, and production areas of teas. [ABSTRACT FROM AUTHOR]

Mesoscale eddy process with at least one splitting and/or merging event can be defined as either a complex process or a simple process. Investigation of the difference between these two categories could provide new insights into how different factors, such as the seabed topography, Kuroshio intrusion, and winds, affect the origin, migration, and decay of the mesoscale eddies. This study compared the characteristics of the complex against the simple eddy processes in the South China Sea (SCS) from 1993 to 2016. We comprehensively analyzed the eddy processes with regards to their characteristic points, trajectories, and networks. The simple and complex processes share many similarities but do show significantly different behaviors. Both the simple and complex processes mainly start from the eastern SCS. However, the complex processes mainly vanish in the western SCS whereas the simple processes disappear almost everywhere across the SCS. The complex processes last longer and migrate more than the simple processes. Lastly, the complex processes mainly move westward within the community. The complex processes can be further categorized into complex anticyclonic and cyclonic eddy processes. Spatially, the splitting and merging events mainly occur in the southwest of Taiwan, northwest of the Luzon Island, and the southeast of Vietnam. Temporally, the merging and splitting events mainly occur in the fall. The interaction among the communities reveals the different migration patterns of the complex anticyclonic and cyclonic eddy processes in the SCS. [ABSTRACT FROM AUTHOR]

Testing and case identification are key strategies in controlling the COVID-19 pandemic. Contact tracing and isolation are only possible if cases have been identified. The effectiveness of testing should be assessed, but a single comprehensive metric is not available to assess testing effectiveness, and no timely estimates of case detection rate are available globally, making inter-country comparisons difficult. The purpose of this paper was to propose a single, comprehensive metric, called the COVID-19 Testing Index (CovTI) scaled from 0 to 100, derived from epidemiological indicators of testing, and to identify factors associated with this outcome. The index was based on case-fatality rate, test positivity rate, active cases, and an estimate of the detection rate. It used parsimonious modeling to estimate the true total number of COVID-19 cases based on deaths, testing, health system capacity, and government transparency. Publicly reported data from 165 countries and territories that had reported at least 100 confirmed cases by June 3, 2020 were included in the index. Estimates of detection rates aligned satisfactorily with previous estimates in literature (R2 = 0.44). As of June 3, 2020, the states with the highest CovTI included Hong Kong (93.7), Australia (93.5), Iceland (91.8), Cambodia (91.3), New Zealand (90.6), Vietnam (90.2), and Taiwan (89.9). Bivariate analyses showed the mean CovTI in countries with open public testing policies (66.9, 95% CI 61.0-72.8) was significantly higher than in countries with no testing policy (29.7, 95% CI 17.6-41.9) (p<0.0001). A multiple linear regression model assessed the association of independent grouping variables with CovTI. Open public testing and extensive contact tracing were shown to significantly increase CovTI, after adjusting for extrinsic factors, including geographic isolation and centralized forms of government. The correlation of testing and contact tracing policies with improved outcomes demonstrates the validity of this model to assess testing effectiveness and also suggests these policies were effective at improving health outcomes. This tool can be combined with other databases to identify other factors or may be useful as a standalone tool to help inform policymakers., Competing Interests: The authors have declared that no competing interests exist.