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Quan-Hoang Vuong,Quang-Hoi Vu,Thu-Trang Vuong 질병관리본부 2017 Osong Public Health and Research Persptectives Vol.8 No.2
Objectives: General health examinations (GHE) have become an increasingly common measure for preventive medicine in Vietnam. However, little is known about the factors among Vietnamese people who attend or miss GHE. Budget or time constraints remain to be evaluated for better-informed policy making. This study investigates factors affecting behaviors in attending periodic GHE. The main objectives are as follows: (1) to explore empirical relationships between influencing factors and periodic GHE frequencies, and (2) to predict the probabilities of attending GHE under associated conditions. Methods: The study used a 2,068-observational dataset, obtained from a Vietnamese survey in 2016. The analysis was then performed using the methods of baseline-category logits for establishing relationships between predictor and response variables. Results: Significant relationships were found among the expenditure and time consumption, health priority and sensitivity to health data, insurance status, and frequency of GHE, with most p-values = 0.01. Conclusion: Generally, people attended the GHE when they had the resources and health priorities (72.7% probability). Expenditure and time remain key obstacles to the periodic GHE. Health priority and health data are important in improving rates for GHEs. Health insurance should play a positive role in promoting the GHE.
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Thu Giang VUONG,Toan Thuyen VUONG 국제이네비해양경제학회 2021 International Journal of e-Navigation and Maritime Vol.16 No.1
It would appear that the diversification of the methods of international transport has made global trade much easier. With the outstanding advantages of cargo volumes, shipping costs and safety of goods, sea transport always accounts for a high proportion of the export and import activities of coastal countries. Today, therefore, seaborne trade is the main method of foreign trade in Vietnam and the world. Towards solutions in the area of seaborne trade development, this study aims to find the essential macroeconomics factors influencing directly seaborne trade by applying autoregressive distributed lag (ARDL) models with a case study of Vietnam. This paper finds that Vietnam’s GDP and FDI have positive impacts on Vietnam’s seaborne trade turnover in both the short run and long run. The findings here make a significant contribution to the search for practical scientific solutions to enhance Vietnam’s seaborne trade development.
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Quan-Hoang Vuong,Viet-Phuong La,Manh-Tung Ho,Thu-Trang Vuong,Manh-Toan Ho 한국과학학술지편집인협의회 2020 Science Editing Vol.7 No.1
Purpose: Although retractions are commonly considered to be negative, the fact remains that they play a positive role in the academic community. For instance, retractions help scientific enterprise perform its self-correcting function and provide lessons for future researchers; furthermore, they represent the fulfillment of social responsibilities, and they enable scientific communities to offer better monitoring services to keep problematic studies in check. This study aims to provide a thorough overview of the practice of retraction in scientific publishing from the first incident to the present. Methods: We built a database using SQL Server 2016 and homemade artificial intelligence tools to extract and classify data sources including RetractionWatch, official publishers’ archives, and online communities into ready-to-analyze groups and to scan them for new data. After data cleaning, a dataset of 18,603 retractions from 1,753 (when the first retracted paper was published) to February 2019, covering 127 research fields, was established. Results: Notable retraction events include the rise in retracted articles starting in 1999 and the unusual number of retractions in 2010. The Institute of Electrical and Electronics Engineers, Elsevier, and Springer account for nearly 60% of all retracted papers globally, with Institute of Electrical and Electronics Engineers contributing the most retractions, even though it is not the organization that publishes the most journals. Finally, reasons for retraction are diverse but the most common is “fake peer review”. Conclusion: This study suggests that the frequency of retraction has boomed in the past 20 years, and it underscores the importance of understanding and learning from the practice of retracting scientific articles.
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Pt-AlGaN/GaN HEMT-based hydrogen gas sensors with and without SiNx post-passivation
Vuong, Tuan Anh,Kim, Hyungtak Institute of Korean Electrical and Electronics Eng 2019 전기전자학회논문지 Vol.23 No.3
GaN-based sensors have been widely investigated thanks to its potential in detecting the presence of hydrogen. In this study, we fabricated hydrogen gas sensors with AlGaN/GaN heterojunction and investigated how the sensing performance to be affected by SiN surface passivation. The gas sensor employed a high electron mobility transistors (HEMTs) with 30 nm platinum catalyst as a gate to detect the hydrogen presence. SiN layer was deposited by inductively-coupled chemical vapor deposition as post-passivation. The sensors with SiN passivation exhibited hydrogen sensing characteristics with various gas flow rates and concentrations of hydrogen in inert background gas at $200^{\circ}C$ similar to the ones without passivation. Aside from quick response time for both sensors, there are differences in sensitivity and recovery time because of the existence of the passivation layer. The results also confirmed the dependence of sensing performance on gas flow rate and gas concentration.
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VUONG, Bui Nhat,TUNG, Dao Duy,GIAO, Ha Nam Khanh,DAT, Ngo Tan,QUAN, Tran Nhu Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.7
Capital mobilization is a traditional business of commercial banks and is one of the core foundations for the development of a bank. Capital mobilization is the main input in the operation of a bank, and this is also the basis for generating output for credit activities as well as other banking activities. This study aims to determine the main factors that affect the decisions of individual customers to put savings deposit in Vietnamese commercial banks. Survey data collected from 403 individual customers were analyzed to provide evidence. The results from the multiple regression analysis by using SPSS software revealed that all scales in this study were reliable, and there were six components impacting the savings deposit decision of individual customers from the strongest to the weakest in the following order: the form of promotion, bank brand, service quality, interest rate policy, and employee knowledge and attitude. Besides, the finding showed customers who have high income tend to have a stronger decision on savings deposits in commercial banks. The main findings of this article provide some empirical implications for marketers in banks and serve as a suggestion to improve these factors in order to retain and attract individual customers' savings deposit decisions.
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Vuong, Pham-Thi,Kim, Jinho,Yoohan Song Korean Society of Applied Entomology 2003 Journal of Asia-Pacific Entomology Vol.6 No.1
In southern Korea, the two aphid species, Myzus Pessicae(Sulzer) and Lipaphis Pseudobrassicae (Davis), had been known to have sexual phase to produce hibernating eggs on their alternate hosts. However, we have fequently found that they were still alive in the parthenogenetic form even in below freezing conditions in winter. This study had been focused on verifying the possibility of overwintering of the two important aphid species in the parthenogenetic morph, by comparing the population density changes within greenhouse and open field condition. In green- house condition, though not heated, both species successfully continued reproducing in a parthenogenetic form. In open field, L. pseudobrassicae successfully survived and reproduced on chinese cabbage and spinach even below freezing temperatures. M. persicae were also able to survive in the winter but not as much capability of reproduction as L. preudobrassicae. This study provided the evidence that the aphid infestations in greenhouse can be mostly from overwintering populations in the parthenogenetic morph in southern greenhouse area of Korea.
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Vuong Tan Tu,Peter Estok,Gabor Csorba,Nguyen Truong Son,Hoang Trung Thanh,Le Quang Tuan,Tamas Gorfol 국립중앙과학관 2016 Journal of Asia-Pacific Biodiversity Vol.9 No.3
Three short field surveys were conducted in the Phia Oac-Phia Den Nature Reserve to assess the species diversity and endemism of local bat fauna. In combination with data from a previous study, 24 bat species of 5 families, representing > 20% of the national bat diversity, were recorded in the study area. The occurrence of several bat species restricted to montane forests, that is, Murina chrysochaetes, Pipistrellus coromandra, and a potentially new species Rhinolophus cf. macrotis, suggests that Phia Oac is an important area for bat conservation in Vietnam and thus more comprehensive studies need to be performed.
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Research on Transnational Ethnic Relations : World Context and Cases in Vietnam
Vuong Xuan Tinh 인하대학교 다문화융합연구소 2018 다문화와 교육 Vol.3 No.2
Transnational ethnic relations (TER) are the relations between ethnic groups, living internally in one country and their coethnics or counterparts of other ethnic minorities, living abroad in other countries that share or do not share common borders. For a multi-ethnic country, TER play a very important role, affecting national socio-economic development and security, since being external relations with counterparts living abroad, but they have profound internal impacts on live of the country. So far, there have been various TER researches conducted by scholars in all over the world. Concerning the studied concepts and theories, the most notable are: the concepts of fluid border, soft border, social space border, the theories of diaspora and neoliberalism. In accordance with these concepts and theories, the authors have carried out the application researches on transnational migration, marriage, religious belief, culture, politics, smuggling, crime. In Vietnam, a country with 46 ethnic groups having coethnics inhabiting in various countries, under the influence of historical background, globalization and the Doi Moi (the Innovation policy of Vietnam), TER have been developing significantly, especially since 1986. This relationship has been expressed in numerous fields, such as politics, economy, society, culture and national security; in the majority Kinh and other ethnic minorities. This relationship relates to, not only 3 countries bordering Vietnam, such as China, Laos and Cambodia, but also to other countries: USA, Canada, France, Australia, Korea, Thailand, Malaysia, Indonesia... that do not share common borders with Vietnam, as well. TER researches in Vietnam reveal that, economic TER are the most exposed, via such as aspects: labor migration, trade, cross-border business, especially those activities carried out in the areas along Vietnam-China, Vietnam-Laos and Vietnam-Cambodia borders. Concerning the social TER, transnational marriages have been increasing, since trend of getting married to coethnics is preferred, especially in ethnic minorities. On cultural relations, festival and religious activities have connected many ethnic minorities in Vietnam with their overseas coethnics and counterpart who are practicing the same religion. Meanwhile, TER have also resulted in some illegal activities, such as cross-border smuggling, drug or women trafficking.
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