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Article ; Online: Combination of a Green and a Traditional Method for Estimating Relative and Absolute Ink Age

Anh Duc Hoang / Minh Binh Tu / Thi Thao Ta / Manh Hung Hoang

Journal of Analytical Methods in Chemistry, Vol

A Case Study of Ballpoint Pen Ink Dating in Vietnam

2021 Volume 2021

Abstract: The dating of ink in questioned documents remains a significant challenge in forensic investigations in Vietnam and other countries. Many forensic examination methods have been usually applied to ensure the highest accuracy of the assessment results ... ...

Abstract	The dating of ink in questioned documents remains a significant challenge in forensic investigations in Vietnam and other countries. Many forensic examination methods have been usually applied to ensure the highest accuracy of the assessment results while maintaining high environment awareness. In this study, paper characteristics were physically tested to confirm source similarity, and the relative ink dating was established by high-performance thin-layer chromatography (HPTLC). Absolute ink dating by solvent and dye identification was performed by Raman spectrometry—a green technique, using a time-dependent degradation model for crystal violet and the comparison between 2-phenoxyethanol peak intensities. We found that the relative dating of the questioned document was 14 ± 3 months lesser than that of the reference samples, i.e., the absolute age of the questioned samples was estimated to be 24 ± 3 months. The combination of the conventional HPTLC method with the dynamic crystal violet degradation Raman model provides promising results for relative and absolute ink dating of ballpoint pens, which can be applied for documents written 1–15 years prior to the time of examination. The combination of the abovementioned methods demonstrated an acceptable error margin, affording highly practical applications in modern forensic science.
Keywords	Analytical chemistry ; QD71-142
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Hindawi Limited
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Dataset of Vietnamese teachers’ habits and motivation behind continuous professional development programs participation

Thanh-Thao Thi Phan / Ngoc-Thuy Ta / Viet-Anh Phu Duong / Anh-Duc Hoang

Data in Brief, Vol 33, Iss , Pp 106525- (2020)

2020

Abstract: In every educational system, teacher development has a vital role in its sector and the health of the social, cultural, and economic sectors. For this redeeming feature, all stakeholders such as education policymakers, school superintendents, and school ... ...

Abstract	In every educational system, teacher development has a vital role in its sector and the health of the social, cultural, and economic sectors. For this redeeming feature, all stakeholders such as education policymakers, school superintendents, and school faculties make a big room for teachers' improvement throughout continuous professional development (CPD) provisions. However, to embark on a new educational adventure is a challenging target to meet, especially when the teacher frames their teaching and learning concept years after years. We decided to survey Vietnamese teachers' habits and motivation to trace their origin back to teachers' partaking reason in these programs. This dataset acquisition occurred from 24 Sep 2019 to 26 Mar 2020 and approached public and private schools (using traditional, bi-lingual, or international curriculum). Overall, the dataset includes 464 observations (263 Vietnamese teachers and 202 expatriate teachers) from 48 K-12 schools across Vietnam. The researchers divided this dataset into three main sections, including (i) The demographic information; (ii) Teacher's CPD habits; and (iii) Teacher's perceptions concerning Project-based and Problem-based Learning (PBL).
Keywords	Teacher professional development ; Continuous professional development ; K-12 School ; Vietnam ; Public education ; Private education ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Science (General) ; Q1-390
Subject code	370
Language	English
Publishing date	2020-12-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Dataset of Vietnamese preschool teachers' readiness towards implementing STEAM activities and projects

Thi-Lam Bui / Thi-Tham Tran / Thanh-Huong Nguyen / Luyen Nguyen-Thi / Viet-Nhi Tran / Ut Phuong Dang / Manh-Tuan Nguyen / Anh-Duc Hoang

Data in Brief, Vol 46, Iss , Pp 108821- (2023)

2023

Abstract: STEAM education has significant impacts on improving preschoolers' learning engagement, cognition, confidence, and innovative thinking skills. The integration of content about local culture into STEAM projects also triggers students' awareness and ... ...

Abstract	STEAM education has significant impacts on improving preschoolers' learning engagement, cognition, confidence, and innovative thinking skills. The integration of content about local culture into STEAM projects also triggers students' awareness and engagement with surrounding communities and societies. However, teachers' competencies and willingness to implement STEAM activities are irreplaceable in determining STEM projects' frequency and effectiveness. This dataset surveyed 754 preschool teachers across ten cities and provinces in Vietnam from 8 Apr 2022 to 15 May 2022. The dataset includes seven main sections: (i) Demographics; (ii) Teachers' know-how about STEAM education; (iii) Teachers' competencies; (iv) Conditions to implement STEAM projects; (v) School policies; (vi) Local culture factors integrated with STEAM projects; and (vii) Teachers' willingness to implement STEAM education.
Keywords	Early childhood education ; Teacher education ; STEAM education ; Culture education ; Place-based education ; Vietnam ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Science (General) ; Q1-390
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Dataset of Vietnamese student's learning habits during COVID-19

Tran Trung / Anh-Duc Hoang / Trung Tien Nguyen / Viet-Hung Dinh / Yen-Chi Nguyen / Hiep-Hung Pham

Data in Brief, Vol 30, Iss , Pp 105682- (2020)

2020

Abstract: A dataset was constructed to examine Vietnamese student's learning habits during the time schools were suspended due to the novel coronavirus - SARS-CoV-2 (COVID-19), in response to a call for interdisciplinary research on the potential effects of the ... ...

Abstract	A dataset was constructed to examine Vietnamese student's learning habits during the time schools were suspended due to the novel coronavirus - SARS-CoV-2 (COVID-19), in response to a call for interdisciplinary research on the potential effects of the coronavirus pandemic (Elsevier, 2020). The questionnaires were spread over a network of educational communities on Facebook from February 7 to February 28, 2020. Using the snowball sampling method, researchers delivered the survey to teachers and parents to provide formal consent before they forwarded it to their students and children. In order to measure the influence of students’ socioeconomic status and occupational aspirations on their learning habits during school closures, the survey included three major groups of questions: (1) Individual demographics, including family socioeconomic status, school type, and occupational aspirations; (2) Student's learning habits, including hours of learning before and during the period of school suspension, with and without other people's support; and (3) Students’ perceptions of their self-learning during the school closures. There was a total of 920 clicks on the survey link, but only 460 responses accompanied by consent forms were received. Non-credible answers (e.g., year of birth after 2009, more than 20 hours of learning per day) were eliminated. The final dataset included 420 valid observations.
Keywords	Learning habits ; School closure ; Socioeconomic ; Occupational Aspiration ; COVID-19 ; Vietnam ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Science (General) ; Q1-390 ; covid19
Subject code	370
Language	English
Publishing date	2020-06-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A Bibliometric Review of Research on International Students’ Mental Health

Quoc-Thai Cao / Quan-Hoang Vuong / Hiep-Hung Pham / Dinh-Hai Luong / Manh-Toan Ho / Anh-Duc Hoang / Minh-Trang Do

European Journal of Investigation in Health, Psychology and Education, Vol 11, Iss 56, Pp 781-

Science Mapping of the Literature from 1957 to 2020

2021 Volume 794

Abstract: The mental health of university students is not only a predominant topic for psychology and education researchers but also a source of interest for policymakers and various stakeholders. Although there has been a lot of research on higher education ... ...

Abstract	The mental health of university students is not only a predominant topic for psychology and education researchers but also a source of interest for policymakers and various stakeholders. Although there has been a lot of research on higher education students’ mental health, we have little understanding on the mental health of international students (MHIS). Despite their distinctive characteristics compared to native students, the mental health issues of international students only started receiving attention very recently. So far, the literature on this topic lacks a comprehensive overview of its sub-topic and trending issues. By using bibliometric analysis, this research aims to fulfil this gap and provide a review of the extant literature about MHIS. Specifically, this study aims to (i) draw the growth trajectory and geographic distribution of the literature on MHIS; (ii) identify the documents and authors that have the greatest impact, generally and locally, within the major topic clusters of the literature on MHIS; and (iii) identify the most researched keywords in the literature on MHIS over time. The results have shown that academic documents about international students’ mental health are increasing in number and becoming more extensive content-wise. The research’s findings provide implications for stakeholders and identifies some prominent research avenues for the future.
Keywords	review ; mental health ; international student ; science mapping ; bibliometric review ; COVID-19 ; Public aspects of medicine ; RA1-1270 ; Psychology ; BF1-990
Subject code	001
Language	English
Publishing date	2021-07-01T00:00:00Z
Publisher	Asociación Universitaria de Educación
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Top economics universities and research institutions in Vietnam

Quan-Hoang Vuong / Anh-Tuan Bui / Manh-Toan Ho / Thanh-Hang Pham / Thi-Hanh Vu / Hung-Hiep Pham / Anh-Duc Hoang / Manh-Tung Ho / Viet-Phuong La

Heliyon, Vol 7, Iss 2, Pp e06273- (2021)

evidence from the SSHPA dataset

2021

Abstract: Economic research is vital for creating more suitable policies to facilitate economic growth. Employing a combination of descriptive and Bayesian analyses, this paper investigates the research landscape of the economics discipline in Vietnam, in ... ...

Abstract	Economic research is vital for creating more suitable policies to facilitate economic growth. Employing a combination of descriptive and Bayesian analyses, this paper investigates the research landscape of the economics discipline in Vietnam, in particular, the leading affiliations in the field and how these institutions compare to each other in terms of productivity, the number of lead authors, new authors and publications' journal impact factor. We also examine the differences in the authors' productivity based on their age and gender. The dataset extracted from the SSHPA database includes 1,444 articles. The findings show that among top producers of economic research in Vietnam, seven are universities, leaving only one representative of research institutes. These top producers account for 52% of research output among 178 institutes recorded in the database. We also find a correlation between a researcher's affiliation, sex, and scientific productivity in Vietnam's economic discipline. Overall, publications by male researchers outnumber those by female ones in most of the top affiliations. The findings also indicate that 40–44 is the age group with the highest scientific productivity. Researchers' collaboration, which is observed through co-authorship, is on the rise in all of the top eight economic research affiliations. However, the quality of current Vietnam's scientific works in the discipline is questionable. Therefore, it is suggested that in order to sustain scientific productivity, economic researchers might need to balance the quantity and quality of their contributions.
Keywords	Scientific collaboration ; Scientific publishing ; Economics discipline ; Vietnam ; Bayesian analysis ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Subject code	001
Language	English
Publishing date	2021-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Factors Associated with the Regularity of Physical Exercises as a Means of Improving the Public Health System in Vietnam

Quan-Hoang Vuong / Anh-Duc Hoang / Thu-Trang Vuong / Viet-Phuong La / Hong Kong T. Nguyen / Manh-Tung Ho

Sustainability, Vol 10, Iss 11, p

2018 Volume 3828

Abstract: Being ranked among the most sedentary countries, Vietnam’s social public health is challenged by the rising number of overweight people. This study aims to evaluate factors associated with the regularity of exercise and sports (EAS) among Vietnamese ... ...

Abstract	Being ranked among the most sedentary countries, Vietnam’s social public health is challenged by the rising number of overweight people. This study aims to evaluate factors associated with the regularity of exercise and sports (EAS) among Vietnamese people living in the capital city of Hanoi, using data collected from a randomized survey involving 2068 individuals conducted in 2016. Physical exercises and daily sports are considered a major means for improving the Vietnamese social public health system by the government, families, and individuals. Applying the baseline-category logit model, the study analyzed two groups of factors associated with EAS regularity: (i) physiological factors (sex, body mass index (BMI)) and (ii) external factors (education, health communication, medical practice at home). Females with a university education or higher usually exercise less than those with lower education, while the opposite is true for males. The study also shows that those with a higher BMI tend to report higher activity levels. Additionally, improved health communication systems and regular health check-ups at home are also associated with more frequent EAS activities. These results, albeit limited to only one location in Vietnam, provide a basis for making targeted policies that promote a more active lifestyle. This, in turn, could help the country realize the goal of improving the average height of the population and reducing the incidents of non-communicable diseases.
Keywords	physical exercises and sports ; sex ; educational background ; social public health ; health communication ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
Subject code	796
Language	English
Publishing date	2018-10-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Dataset of ex-pat teachers in Southeast Asia's intention to leave due to the COVID-19 pandemic

Anh-Duc Hoang / Ngoc-Thuy Ta / Yen-Chi Nguyen / Cong-Kien Hoang / Tien-Trung Nguyen / Hiep-Hung Pham / Linh-Chi Nguyen / Phuong-Thuc Doan / Quynh-Anh Dao / Viet-Hung Dinh

Data in Brief, Vol 31, Iss , Pp 105913- (2020)

2020

Abstract: The COVID-19 pandemic exerted an adverse influence on the global education system, especially since starting school lockdown. The growth of teacher unemployment figures climbed double-digit and spawned these unexpected sequels. For instance, while native ...

Abstract	The COVID-19 pandemic exerted an adverse influence on the global education system, especially since starting school lockdown. The growth of teacher unemployment figures climbed double-digit and spawned these unexpected sequels. For instance, while native teachers seemed indisposed to leave the profession with the aim of seeking another more profited and seasonal jobs, many ex-pat teachers presented themselves with moving or stayed dilemma in the way the government salvaged their situation. In preference with the ex-pat teacher's case, we elucidated further throughout an e-survey in the International Baccalaureate community on Facebook from 4 to 11 April 2020 for 18,000 ex-pat teachers, who are teaching at Southeast Asia. This dataset includes 307 responses of ex-pat teachers who are staying in Singapore, Thailand, Vietnam, the Philippines, and Indonesia during the pandemic. The dataset comprises (i) Survey partakers' Demographics; (ii) Ex-pat teachers' perceptions in the relation of national, regional and school plans were afoot to the pandemic; (iii) The degree of attachment of ex-pat teacher to their current society, the ex-pat community, friends, and families during the pandemic time; (iv) Ex-pat teachers' embryo intention to reconsider their current teaching location.
Keywords	Teacher engagement ; Teacher retention ; COVID-19 ; Southeast Asia ; International school ; Ex-pat Teacher ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Science (General) ; Q1-390 ; covid19
Subject code	370
Language	English
Publishing date	2020-08-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Dataset of Vietnamese teachers’ perspectives and perceived support during the COVID-19 pandemic

Cam-Tu Vu / Anh-Duc Hoang / Van-Quan Than / Manh-Tuan Nguyen / Viet-Hung Dinh / Quynh-Anh Thi Le / Thu-Trang Thi Le / Hiep-Hung Pham / Yen-Chi Nguyen

Data in Brief, Vol 31, Iss , Pp 105788- (2020)

2020

Abstract: The COVID-19 pandemic has caused unprecedented damage to the educational system worldwide. Besides the measurable economic impacts in the short-term and long-term, there is intangible destruction within educational institutions. In particular, teachers – ...

Abstract	The COVID-19 pandemic has caused unprecedented damage to the educational system worldwide. Besides the measurable economic impacts in the short-term and long-term, there is intangible destruction within educational institutions. In particular, teachers – the most critical intellectual resources of any schools – have to face various types of financial, physical, and mental struggles due to COVID-19. To capture the current context of more than one million Vietnamese teachers during COVID-19, we distributed an e-survey to more than 2,500 randomly selected teachers from two major teacher communities on Facebook from 6th to 11th April 2020. From over 373 responses, we excluded the observations which violated our cross-check questions and retained 294 observations for further analysis. This dataset includes: (i) Demographics of participants; (ii) Teachers' perspectives regarding the operation of teaching activities during the pandemic; (iii) Teachers' received support from their schools, government bodies, other stakeholders such as teacher unions, and parents' associations; and (iv) teachers' evaluation of school readiness toward digital transformation. Further, the dataset was supplemented with an additional question on the teachers' primary source of professional development activities during the pandemic.
Keywords	Education management ; Teacher satisfaction ; Teacher engagement ; COVID-19 ; Vietnam ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Science (General) ; Q1-390 ; covid19
Subject code	370
Language	English
Publishing date	2020-08-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Toward Sustainable Learning during School Suspension

Trung Tran / Anh-Duc Hoang / Yen-Chi Nguyen / Linh-Chi Nguyen / Ngoc-Thuy Ta / Quang-Hong Pham / Chung-Xuan Pham / Quynh-Anh Le / Viet-Hung Dinh / Tien-Trung Nguyen

Sustainability, Vol 12, Iss 4195, p

Socioeconomic, Occupational Aspirations, and Learning Behavior of Vietnamese Students during COVID-19

2020 Volume 4195

Abstract: The overspread of the novel coronavirus—SARS-CoV-2—over the globe has caused significant damage to manufacturing and service businesses, regardless of whether they are commercial, public, or not-for-profit sectors. While both the short-term and long-term ...

Abstract	The overspread of the novel coronavirus—SARS-CoV-2—over the globe has caused significant damage to manufacturing and service businesses, regardless of whether they are commercial, public, or not-for-profit sectors. While both the short-term and long-term impacts of most companies can be approximately measured or estimated, it is challenging to address the enduring effects of COVID-19 on teaching and learning activities. The target of this research is to investigate students’ manners of studying at home during the school suspension time as a result of COVID-19. Through analyzing original survey data from 420 K6–12 students in Hanoi, Vietnam, this work demonstrates the different learning habits of students with different socioeconomic statuses and occupational aspirations during the disease’s outbreak. In particular, we featured the differences in students’ learning behaviors between private schools and public schools, as well as between students who plan to follow STEM-related careers and those who intend to engage in social science-related careers. The empirical evidence of this study can be used for the consideration of the local government to increase the sustainability of coming policies and regulations to boost students’ self-efficacy, as it will affect 1.4 million students in Hanoi, as well as the larger population of nearly 10 million Vietnamese students. These results can also be the foundation for future investigations on how to elevate students’ learning habits toward Sustainable Development Goal 4 (SDG4)—Quality Education—especially in fanciful situations in which the regular school operation has been disrupted, counting with limited observation and support from teachers and parents.
Keywords	sustainable education ; learning habit ; school closure ; socioeconomic ; occupational aspiration ; COVID-19 ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350 ; covid19
Subject code	370
Language	English
Publishing date	2020-05-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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