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In Vietnamese high schools, learning in general and self-study in particular plays a very important role in helping learners to deeply understand, expand, consolidate and memorise lessons profoundly thanks to the ability to self-analyze, synthesize and apply existing knowledge in solving new learning tasks. The article presents some issues on guided self-studying and the method to facilitate students with math instructions at high school. To organize the implementation of guided self-studying for students effectively, teachers are required to invest considerable time as well as flexibility in the design of instructional guides to help them access the question the fastest and most suitable way to their capabilities.

Prior studies on chief executive officer (CEO) compensation focus mainly on large firms. This paper aims to suggest new factors associated with CEO compensation for small, homogeneous firms, specifically, Australian early‐stage mining exploration entities (MEEs). We document a set of predictors of CEO compensation proxying for economic performance, including geological prospectivity components of the exploration and evaluation (E&E) asset account and proceeds from equity raisings that enhances survival probabilities. We find positive associations between these predictors and CEO remuneration. In terms of CEO pay mix, we find that E&E asset acquisitions and equity proceeds are both positively associated with the proportion of option value in CEO total compensation. This suggests MEEs allocate their cash resources to investment opportunities, rather than CEO compensation. Overall, these findings, coupled with a significant and positive pay‐performance relation, provide evidence supporting efficient compensation practices in the MEE context.

The article points out the shortcomings in the labor arrangement at the 11th long wall. The analysis results have shown: (i) The actual number of employees assigned to use is often much higher than expected. It is because Ha Lam Coal Joint Stock Company only designs for good conditions, but actually, the company faces many obstacles due to the characteristic production conditions; (ii) the actual productivity is much lower than the designed labor productivity because the calculation of the number of employees is not consistent with the production conditions of the long wall; at the same time, the number of manual workers for ancillary work is too much arranged according to actual needs; (iii) The current level of direct labor productivity at the 11th long wall is still low compared to the actual capacity, not motivating workers to increase labor productivity. The solutions to overcome the problems are (i) Complete the calculation of the number of employees considering the specific production conditions and the number of auxiliary workers; (ii)Re-arrange labor in manual auxiliary production to reduce labours; (iii) Recalculate the direct labor productivity assigned to the 11th long wall. With these solutions, the company will increase the initiative in production, improve labor productivity and lower product costs.

The presence of volcanic materials in reservoir will reduce the porosity value and effect to the quality of reservoirs. Therefore, understanding the distribution of this object will be of great significance in the orientation of oil and gas exploration and exploitation. This paper applies seismic attribute analysis method combined with artificial neural network (ANN) application to predict the distribution of volcanic materials in D sequence. Attributes selected as input for ANN training including RMS, RAI and Specdecom attribute. The results indicate that volcanic materials mainly appear in the to the Southwest of block (around D well and the West of E well), a small part is scattered near Con Son swell. The correlation coefficient among seismic attribute is from 71 to ~ 80%, this shows that the reliability of the results of network training is relatively high. Therefore, this method can be used to predict the distribution of volcanic materials in the study area.

Asymptomatic transmission was found to be the Achilles' heel of the symptom-based screening strategy, necessitating the implementation of mass testing to efficiently contain the transmission of COVID-19 pandemic. However, the global shortage of molecular reagents and the low throughput of available realtime PCR facilities were major limiting factors.A novel semi-nested and heptaplex (7-plex) RT-PCR assay with melting analysis for detection of SARS-CoV-2 RNA has been established for either individual testing or 96-sample pooled testing. The complex melting spectrum collected from the heptaplex RT-PCR amplicons was interpreted with the support of an artificial intelligence algorithm for the detection of SARS-CoV-2 RNA. The analytical and clinical performance of the semi-nested RT-PCR assay was evaluated using RNAs synthesized in-vitro and those isolated from nasopharyngeal samples.The LOD of the assay for individual testing was estimated to be 7.2 copies/reaction. Clinical performance evaluation indicated a sensitivity of 100% (95% CI: 97.83-100) and a specificity of 99.87% (95% CI: 99.55-99.98). More importantly, the assay supports a breakthrough sample pooling method, which makes possible parallel screening of up to 96 samples in one real-time PCR well without loss of sensitivity. As a result, up to 8,820 individual pre-amplified samples could be screened for SARS-CoV-2 within each 96-well plate of realtime PCR using the pooled testing procedure.The novel semi-nested RT-PCR assay provides a solution for highly multiplex (7-plex) detection of SARS-CoV-2 and enables 96-sample pooled detection for increase of testing capacity. .

This dataset provides an insight into the reality and experiences of online learning as perceived by secondary school students in Vietnam during COVID-related school closures. The dataset addresses four main aspects of online learning, namely (a) students' access to learning devices, (b) their digital skill readiness, (c) their experience with online learning and assessment activities, and (d) their overall evaluation of the effectiveness of online learning. The survey was administered online via Google Form from September to December 2021 with responses received from 5,327 secondary school students in 5 provinces of Vietnam. The dataset is expected to benefit local educators, administrators, and teachers who are interested in COVID educational practices and pedagogical interventions. The dataset can also benefit international researchers who wish to conduct comparative studies on student online learning or who wish to seek further insight into the responsiveness of an educational system to pandemic situations.

IntroductionPhysical health conditions are the leading causes of death in people living with severe mental illness. In particular, the risk of metabolic syndrome; the constellation of abnormalities in weight, blood pressure, blood glucose and lipid levels, is high in this cohort. It has been recognised that commonly prescribed pharmacological agents for mental illness can further amplify the risk of developing metabolic syndrome; therefore, monitoring guidelines are in place for consumers prescribed antipsychotics. However, there is a disconnect between recommended guidelines and current practice. Our study aims to investigate: (1) the feasibility of a community pharmacist-led physical health monitoring for metabolic parameters in consumers with mental illness currently taking second generation antipsychotics and (2) the potential outcomes of the intervention (eg, rates and outcome of referrals to general practitioners, relationship between the pharmacist’s lifestyle counselling advice and change in metabolic parameters).Methods and analysisWe propose a longitudinal metabolic monitoring study led by community pharmacists with one-to-one consultations between trained pharmacists and participants at set intervals over a 12-month period. Our primary outcome is to determine the feasibility of the pharmacist-led intervention. The secondary outcome is to explore the overall health outcomes of consumers enrolled in the intervention. This is a mixed-methods study including both quantitative and qualitative outcomes. Qualitative data will be analysed via the process of data immersion, coding and identification of themes. Quantitative outcomes will be analysed using IBM Statistics SPSS software. Univariate descriptive, regression analysis and dependent t-tests will be performed. Statistical significance will be at α 0.05.Ethics and disseminationOur study has been approved by the institutional Human Research Ethics Committee (Protocol no: 203433). Findings will be made publicly available in peer-reviewed articles, conference presentations to health professionals, as well as other stakeholders. Protocol V.2.1, August 2021.Trial registration numberACTRN12621001435875.

Refereed/Peer-reviewed In Australia, mental illness has been recognised as a National Health Priority area, with the coronavirus pandemic adding a layer of urgency to the need to address the multiple health problems faced by clients with mental illnesses. Whilst much has been done in efforts to support these clients, little is known about their medication knowledge and experience with health professionals. The aim of the study was to explore the knowledge and beliefs of clients on the use of psychotropic medications and study their experiences with healthcare providers. Adult participants at a not-for-profit community-managed specialist mental health service provider in Adelaide, South Australia were recruited. Four focus group sessions were conducted between February 2020 and March 2021. All sessions were co-facilitated by a peer practitioner with lived experience. Sessions were audio recorded and transcribed verbatim. Participants (n = 27) reported that provision of medication education was inadequate and, in some cases, non-existent. There was an apparent lack of support for monitoring and managing common side effects, such as weight gain. Participants described not being involved in any decision-making processes and that establishing and maintaining a therapeutic relationship with their healthcare providers was challenging. Perceived stigma remains a barrier in accessing healthcare. Despite participants regularly interacting with a range of healthcare providers, findings highlight key gaps in care, particularly medication education and establishing a therapeutic relationship with their healthcare providers. Future mental health reforms should consider the provision of additional medication education in community settings, such as at not-for-profit organisations. Moreover, healthcare providers should take a proactive approach in establishing therapeutic relationships.

The Vu Gia - Thu Bon river basin is one of the largest basins in Vietnam. Research and assessment of this potential basin is a great interest to scientists and regulators. One of the important studies is the evaluation of morphological parameters of the basin. The morphological parameters represent water resources and at the same time are one of the factors that help researchers give a comprehensive view of the basin, assessing the factors related to the direction of the flow, the flow rate or hazards throughout the basin. Therefore, this paper is an attempt to evaluate the morphology of Vu Gia - Thu Bon river basin using DEM SRTM (30 m) data in GIS. This analysis can be achieved through the measurement of linear aspects, aerial aspects and relief aspects of the drainage basin. The results of the study show that stream order ranges from first to sixth order with a total stream length of 1024, a total length of 3183.2 km. Basin was divided into three subregions: upland, midland, and lowland. Those represent 66,9%, 26,0% and 7,1% percent of the region’s total area respectively.

Forest fires are always a problem around the world because of its great harm. Especially in Vietnam, the prevention and detection of forest fires are mainly based on the patrolling forest rangers; the warning board is not automatically controlled. In this article, we will present the design of an automatic controller, which was applied fuzzy logic to control the forest fire - level forecast warning signage. The controller relies on regional meteorological information to control the signage on the spot, and to directly inform the manager about the forest fire forecasting situation via text message. The experienced results of some forest protection units in Thai Nguyen prove that the application of fuzzy logic has met the requirements of the forest protection sector in improving the forest fire forecasting system.

This study examines the current situation of responsibility accounting and proposed management solutions according to responsibility centers on public universities in Vietnam. The study applies quantitative research methods, and collected data through structured questionnaires to 138 public universities in Vietnam in 2019, receiving back 55 valid questionnaires. The data was cleaned and analyzed with SPSS software. The results show that most public universities in Vietnam assigned management responsibility to their departments, but responsibility accounting was not comprehensive since many universities are not financially autonomous. The Kruskal Wallis Test was conducted to compare the current situation of responsibility accounting among universities by the degree of autonomy and by geographic area. The research found out that totally autonomous universities assigned management responsibility to responsibility centers better than semiautonomous and non-autonomous universities did. Regarding the evaluation of management responsibility, universities in Central Vietnam rated specific quantitative criteria, residual income (RI) and returns on investment (ROI) higher than universities in the North and the South of Vietnam did. However, universities in the South of Vietnam rated the evaluation of profits by department higher than the rest. The study also suggests structure for establishing responsibility centers in accordance with public universities in Vietnam.

This study aims to research credit solutions for sustainable marine economic development in Tra Vinh Province on the case of aquaculture by using themethod of collecting secondary data from reports of the State Bank in Tra Vinh Province, Department of Statistics Tra Vinh Province, Department of Agriculture and Rural Development Tra Vinh Province in the period of 2016 to 2018. By using statistical and general, evaluating and analyzing methods, the authors have assessed the realities of financing credit, clarified advantages and challenges for marine economy in Tra Vinh Province. Thereby, the study has implied policies for sustainable development of marine economy in Tra Vinh Province in the coming time.

Lão Tử là người sáng lập nên Đạo giáo, là người viết nên Đạo Đức Kinh – một trong những cuốn sách đáng chú ý nhất trong lịch sử triết học Trung Quốc cổ đại. Trong tác phẩm Đạo Đức Kinh, Lão Tử đã xây dựng nên tư tưởng về phép biện chứng về quá trình vận động, phát triển của vạn vật trong xã hội, tự nhiên và cả trong nhận thức. Sự vận động biến đổi của vạn vật tuân theo sự vận động biến đổi của Đạo. Và Đạo luôn tuân theo quy luật quân bình và phản phục. Luật quân bình được ông đã nâng lên thành một nghệ thuật sống của con người; lối sống hoà hợp, nhân ái; hoà hợp với tự nhiên, hoà hợp với xã hội, hoà hợp với mọi người xung quanh, hoà hợp giữa tâm hồn và thể xác con người. Đây cũng là bài học đáng quý cho con người ngày nay khi muốn nâng cao chất lượng cuộc sống của mình.

Case studies of changes in the status and roles of smart school libraries point out that the world has entered the “digital era” with digital libraries, smart libraries, smart schools and smart classrooms featured with research and development, Internet-based innovation of modern communication technology. In Vietnam, educational management in general and university governance in particular are undergoing a radical and comprehensive renovation in which libraries are digitalized to become smart libraries to better meet the needs of learners, instructors, managers and people interested in scientific research and training of high quality human resources.

A high prevalence of mental disorders in adolescents has been reported worldwide, but little is known about mental health literacy in this population, particularly in developing countries. The goal of this study was to evaluate mental health literacy level and help-seeking preferences in high school students in Ho Chi Minh City, Vietnam. These two variables were also compared between students who had stress, anxiety and depression with students who did not. A cross-sectional study was conducted with 1094 students across 27 classes at three high schools. Students completed a self-report questionnaire that included validated scales such as the Depression Anxiety Stress Scale (DASS-21), the Mental Health Literacy Scale (MHLS) and the General Help-Seeking Questionnaire. Based on the DASS-21, the prevalence of students reporting symptoms of stress, depression and anxiety was 36.1%, 39.8% and 59.8%, respectively. The mean MHLS score was 104.12 (SD = 10.09) and was significantly lower in students who had symptoms of depression. The most common help-seeking preferences for mental illness were friends, classmates and relatives or family members. Help-seeking preferences were almost identical among students with stress, anxiety or depression. While Vietnamese high school students had high levels of symptoms of stress, depression and anxiety and moderate levels of mental health literacy, non-professionals were preferred as their first help-seeking choice. Our findings revealed the need for routine school-based mental health screening and referral activities as well as mental health education programs for high school students in Vietnam.

Teacher professional development (TPD) plays a significant role in better school improvement and student achievements. Research on TPD shows that favourable workplace conditions greatly enhance teachers’ teaching knowledge and practice. This research was conducted to find out what workplace conditions principals had created to promote TPD in four schools in a province in Vietnam. The study utilises multiple-site case study design relating to principal leadership and TPD in those schools. The four key workplace conditions were identified in this study including collaboration, teacher empowerment, supervision and evaluation, and teachers’ motivational strategies. Based on the findings, the study offers implications for both research and practice on principal leadership for TPD within and beyond the Vietnamese context. Link athttps://www.researchgate.net/publication/338406386_Workplace_conditions_created_by_principals_for_their_teachers'_professional_development_in_Vietnam Doi:10.1080/13603124.2019.1708472 &nbsp

This paper investigated the level of management accounting application in Vietnamese enterprises in relation to the management functions of planning, controlling, assessing and decision making. Both qualitative and quantitative research methods were used. Qualitative research was conducted with 23 directors and chief accountants. Quantitative research was conducted by sending questionnaires to 120 enterprises. The results showed that 100 percent of Vietnamese enterprises have been applying management accounting. The level and content of management accounting applications in enterprises varied by size, length of business operation and business sector. Small companies often applied conventional management accounting techniques while large ones used contemporary management accounting techniques such as activity-based costing, activity-based budgeting, analysis for decision making, target costing and strategic planning. The research provides an overview of the reality, effects of management accounting on enterprises, helping enterprises understand management accounting and ways to use it effectively in the future.

Because blaExtracted DNA samples obtained from 168 Escherichia coli isolates possessing blaNucleotide sequences and locations of 168 UGSs obtained from the examined E. coli isolates were determined. Among the 168 determined UGSs, 150 (89.3%) UGS were confirmed on plasmid and classified into eight types. Interestingly, coding sequence of ISEcp1 transposase gene in seven of the eight types were disrupted by IS26 insertion. The remaining 18 (10.7%) UGSs were observed in identical chromosomal region. The obtained nucleotide sequences the locations of UGSs were confirmed by conventional capillary sequencer and Southern blotting, respectively, and any discrepant result was not observed with these confirmation procedures.Our results indicated that the established method was efficient for simultaneously determining at least 100 different UGS, and suggested that the determined UGSs of ISEcp1-bla

Purpose The purpose of this paper is to examine effects of regional economic integration on the concentration of manufacturing firms in provinces of Thailand on the border with Cambodia. It aims to clarify the interactions between dispersion and agglomeration forces within a firm’s location choice in the presence of economic integration and thereby to explain the feasibility of the border SEZs. Design/methodology/approach The theory of industrial clustering and New Economic Geography provides a theoretical framework to understand the locations of economic activities when regional economies are integrated. This paper employs provincial level data to calculate industry location quotients across a 10-year period from 2007 to 2017 in central Thailand and uses firm-level data from industrial censuses in 2006 and 2011 to estimate logit models for two border provinces with Cambodia and three eastern seaboard provinces. Two base models and extended models are tested to explain the persistent agglomeration of Thai firms in each manufacturing industry. Findings The authors found a positive correlation between the agglomeration level in 2006 and the choice of firms toward the border provinces in 2011. The disaggregated analysis shows that depending on the initial level of concentration in each industry, there can be agglomeration or dispersion effects. The advantage of low trade costs and labor costs of unskilled migrant workers are not significant factors attracting firms to the border. Firms in industries with increasing returns are more likely to stay in the hub. Practical implications The disaggregated analysis by industry provides very important implications for SEZ policy interventions. The important role of agglomeration economies limits the extent to which such policies can be successful. It would be an enormous challenge for policy makers to initiate forces which are strong enough to induce firms to relocate away from areas with high agglomerations. Policy interventions with attractive incentives should be very selective to industries already have a certain degree of concentration in the provinces so as to reinforce the agglomeration effects. Originality/value The research extends the empirical literature on SEZs by offering a unique case study of an emerging economy with a strong market foundation rather than a transitional or developed economy. It is also different from other research on SEZs when taking into account the effects of regional integration on border SEZ formation and firms’ location choices. In addition, this study employs firm-level data rather than provincial data to bring empirical insights and fill in the knowledge gap on agglomeration economies in Thailand with the presence of regional economic integration.

We investigate whether bilateral exports of goods flowing from Vietnam to its 46 top trading partners are affected by corruption over the period 2000–2014. We capture the effects of corruption of V...

Sediment bioelectrochemical systems (SBESs) can be integrated into brackish aquaculture ponds for in-situ bioremediation of the pond water and sediment. Such an in-situ system offers advantages including reduced treatment cost, reusability and simple handling. In order to realize such an application potential of the SBES, in this laboratory-scale study we investigated the effect of several controllable and uncontrollable operational factors on the in-situ bioremediation performance of a tank model of a brackish aquaculture pond, into which a SBES was integrated, in comparison with a natural degradation control model. The performance was evaluated in terms of electricity generation by the SBES, Chemical oxygen demand (COD) removal and nitrogen removal of both the tank water and the tank sediment. Real-life conditions of the operational parameters were also experimented to understand the most close-to-practice responses of the system to their changes. Predictable effects of controllable parameters including external resistance and electrode spacing, similar to those reported previously for the BESs, were shown by the results but exceptions were observed. Accordingly, while increasing the electrode spacing reduced the current densities but generally improved COD and nitrogen removal, increasing the external resistance could result in decreased COD removal but also increased nitrogen removal and decreased current densities. However, maximum electricity generation and COD removal efficiency difference of the SBES (versus the control) could be reached with an external resistance of 100 Ω, not with the lowest one of 10 Ω. The effects of uncontrollable parameters such as ambient temperature, salinity and pH of the pond (tank) water were rather unpredictable. Temperatures higher than 35°C seemed to have more accelaration effect on natural degradation than on bioelectrochemical processes. Changing salinity seriously changed the electricity generation but did not clearly affect the bioremediation performance of the SBES, although at 2.5% salinity the SBES displayed a significantly more efficient removal of nitrogen in the water, compared to the control. Variation of pH to practically extreme levels (5.5 and 8.8) led to increased electricity generations but poorer performances of the SBES (vs. the control) in removing COD and nitrogen. Altogether, the results suggest some distinct responses of the SBES under brackish conditions and imply that COD removal and nitrogen removal in the system are not completely linked to bioelectrochemical processes but electrochemically enriched bacteria can still perform nonbioelectrochemical COD and nitrogen removals more efficiently than natural ones. The results confirm the application potential of the SBES in brackish aquaculture bioremediation and help propose efficient practices to warrant the success of such application in real-life scenarios.

The quality of training is an important issue and is of special concern to universities. Lecturers has a pioneering role in innovation of higher education management since the quality of higher education is always associated with the quality of lecturers. Assessing job satisfaction of lecturers is a fundamental step for universities to improve quality and job satisfaction of lecturers as well as attract and retain qualified lecturers. This study aims at assessing job satisfaction of lecturers in Vietnamese universities. For the purpose of this study, quantitative research method was applied. The questionnaires were sent randomly to 131 lecturers from 48 universities in Vietnam via email and google doc. Then, data was analyzed by various tool including descriptive statistics, frequency, exploratory factor analysis and multiple regression analysis. The study examined four factors affecting lecturer job satisfaction include Facilities, Job Characteristics, Salaries and Fringe Benefits, Development Opportunities. Specifically, Job Characteristics have the strongest impact on lecturer job satisfaction while Salary and Fringe Benefits have the smallest impact on lecturer job satisfaction. The research on factors affecting job satisfaction of lecturers helps universities to develop appropriate policies in order to maintain and develop lecturers, as well as attract talents and prevent the “brain drain”.

In Vietnam’s society where the economy is under restructuring into a market one, the renovation of education started in 1982 and the comprehensive educational renovation have created huge changes in the national educational system in 2001. The educational renovation has been led by the Vietnam Communist Party’s (CPV) policy course, regulated by the country’s legislation and has opened up education opportunities, reduced social inequality in education, and changing educational level structure. A number of studies have clarified factors of educational opportunities and their relationship to the human resource and economy, but these studies are relevant mainly to societies with developed and developing market economy. Therefore, based on the systematical theory approach and literature analysis method, this paper concentrates on clarifying the education renovation triangle comprising education policy, education opportunity, and educational level in a society restructuring into a market economy in Vietnam.

Respiratory syncytial virus (RSV) is a leading cause of Acute Respiratory Tract Infections (ARTIs) in young children. However, there is currently no vaccine or treatment available for children. Here, we demonstrated that nasal-spraying probiotics containing 5 billion of Bacillus spores (LiveSpo Navax) is an effective symptomatic treatment in a 6-day randomized controlled clinical study for RSV-infected children (n = 40–46/group). Navax treatment resulted in 1-day faster recovery-time and 10–50% better efficacy in relieving ARTI symptoms. At day 3, RSV load and level of pro-inflammatory cytokines in nasopharyngeal samples was reduced by 630 folds and 2.7–12.7 folds respectively. This showed 53-fold and 1.8–3.6-fold more effective than those in the control-standard of care-group. In summary, nasal-spraying Bacillus spores can rapidly and effectively relieve symptoms of RSV-induced ARTIs while exhibit strong impacts in reducing viral load and inflammation. Our nasal-spraying probiotics may provide a basis for simple-to-use, low-cost, and effective treatment against viral infection in general.

Particulate matter (PM), an extremely serious type of air pollution, leads to numerous human diseases. Mitigating PM in the urban city, where resident density has been increasing, has been a major challenge. The increase in residents leads to increasing traffic, the primary source of PM in urban areas. Plants play an important role in reducing PM and maintaining an ecological balance. For some Asian countries, such as Korea, with differing seasons and environmental conditions, PM accumulation and plant survival are greatly impacted by environmental conditions. In this study, we analyzed the amount of PM accumulation on the leaf surfaces and wax layers of 24 plant species during four seasons (spring, summer, autumn, and winter) to determine the PM accumulation in plants under different environmental conditions. The leaf traits of plant chlorophyll a (Chl a), chlorophyll b (Chl b), total chlorophyll (TChl), relative water content (RWC), leaf extract pH (pH), and leaf specific area (SLA) were analyzed to determine the influence of PM on plants and the relationship between PM and leaf traits. In this study, we found that the amount of PM accumulation differed among plants and seasons. Among the 24 plant species, plants Pinus strobus, P. parviflora, P. densiflora, Euonymus japonicus, and Acer palmatum were most adept at PM accumulation. Leaf structure, environmental conditions, such as PM concentration, and rainfall may be the main factors that impact the ability of plant leaves to accumulate PM. The plant leaf traits differed among the four seasons. PM accumulation on the leaf was negatively correlated with SLA (in all four seasons) and pH (in spring, summer, and autumn). PM was negatively correlated with Chl a, Chl b, and TChl in summer.

Thinh H Nguyen,1,* Truc T Thai,2,* Phuong TT Pham,2 Tam NM Bui,1 Han HT Bui,3 Bac Hoang Nguyen1 1Training and Scientific Research Department, University Medical Center Ho Chi Minh City, Ho Chi Minh City, Vietnam; 2Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam; 3Woolcock Institute of Medical Research, Ho Chi Minh City, Vietnam*These authors contributed equally to this workCorrespondence: Truc T ThaiFaculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, Ward 11, District 5, Ho Chi Minh City, VietnamTel +84 908 381 266Email thaithanhtruc@ump.edu.vnPurpose: Continuing medical education (CME) is a compulsory requirement for every health professional. However, to date, little is known about the effectiveness of CME in Vietnam. This study assessed CME programs based on attendees’ perception and evaluation.Methods: A cross-sectional study was conducted during a five-month period in all 62 CME courses at a university hospital. A self-report, anonymous questionnaire was distributed to the participants during the course and was collected at the end of the course. The questionnaire included questions about demographic characteristics, experiences during the course and participants’ perception and evaluation as measured by the 19-item Program Evaluation Instrument (PEI). A higher score on the PEI indicates a higher level of positive reaction toward CME programs.Results: Among 1312 participants in the analysis, the majority were females (58.1%) with a mean age of 34.5 (SD = 10.6) years. Almost all participants had good, positive perceptions toward CME. However, about 5% of participants reported CME a waste of time. Participants reported a high score on the PEI (95.0± 8.9) and all four dimensions including program objectives (20.7± 2.2), learner’s objectives (18.8± 2.3), teacher’s behavior (25.7± 2.7) and program satisfaction (29.7± 3.4). While there was no association between demographic characteristics and PEI score, attendance rate during the courses and perceptions toward CME were positively associated with PEI score.Conclusion: CME programs receive positive reaction and evaluation from healthcare professionals and are helpful in providing and updating knowledge, attitude and practice in Vietnam. However, further studies are needed in other settings and specialties to fully understand the effectiveness of CME in Vietnam.Keywords: effectiveness, perception, evaluation, continuing medical education, health professional, Vietnam

Truc Thanh Thai,1 Mairwen K Jones,2 Thao Phuong Nguyen,1 Thao Van Pham,1 Han Hy Thi Bui,3 Loan Xuan Kim,1 Tap Van Nguyen4 1Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City Vietnam; 2Faculty of Medicine & Health, The University of Sydney, Sydney, New South Wales, Australia; 3Woolcock Institute of Medical Research Vietnam, Ho Chi Minh City, Vietnam; 4Department of Medicine and Pharmacy, Tra Vinh University, Tra Vinh, VietnamCorrespondence: Truc Thanh ThaiFaculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, VietnamTel +84 908381266Email thaithanhtruc@ump.edu.vnTap Van NguyenDepartment of Medicine and Pharmacy, Tra Vinh University, Tra Vinh, VietnamTel +84 914064340Email nvtap@tvu.edu.vnPurpose: Research conducted across different countries has consistently identified non-suicidal self-injury (NSSI) to be a common and significant public health problem. This study examined the prevalence, associated factors and functions of NSSI, among a large sample of Vietnamese adolescents.Methods: A total of 1316 high school students (15– 18 years old, 63.3% female) across urban and suburban areas in Ho Chi Minh City, participated in this cross-sectional study. NSSI was assessed by the Functional Assessment of Self-Mutilation.Results: Almost half (43.9%) of the adolescents engaged in at least one type of NSSI within the preceding 12-month period and more than one quarter (26.1%) engaged in multiple types of NSSI. Hitting self on purpose (23.1%), picking at a wound (17.0%), or biting self (16.7%) were the most frequent behaviours. Severe forms of NSSI such as scraping, burning or erasing skin were reported by 17.2%. The most common functions for NSSI were to stop bad feelings (56.0%), to punish self (48.7%), to get control of a situation (44.0%) and to feel relaxed (42.2%). Symptoms of depression, anxiety and stress were significant factors associated with NSSI, particularly for participants who engaged in moderate/severe NSSI and multiple types of NSSI.Conclusion: High rates of NSSI were found in Vietnamese adolescents. There is a pressing need for the development and implementation of effective interventions to reduce NSSI. Strategies that promote positive mental health and reduce symptoms of depression, anxiety and stress as well as approaches that help adolescents manage their internal emotions are likely to be beneficial.Keywords: non-suicidal self-injury, functions, high school students, adolescents, associated factors, Vietnam

Extended spectrum β-lactamase (ESBL)-producing Escherichia coli have been found in healthy individuals in Indonesia and Vietnam. The ISEcp1-bla

Background. Preservation and restoration of skin integrity following surgery is paramount for optimal patient wound healing outcomes. Acute wounds such as incisional wounds, skin tears, trauma or burn injury cause pain, reduce quality of life and are a considerable economic burden to the Australian healthcare system. Despite considerable advances in surgical technique and even with a panacea of innovative novel wound dressings, our scientific and clinical understanding of wound healing prevention and management of acute wound complications continue to present a considerable challenge to clinicians and policy makers. Understanding the gaps in knowledge and identifying clinical practice deficits are key for prevention and management of acute wounds. Aims. This scoping review aims to (i) map current research evidence and outcomes in acute wounds management, (ii) map current research evidence and outcomes in acute wounds prevention and (iii) determine research gaps in acute wound research relevant to Australia. Methods. The framework for this scoping review will utilise the PRISMA-ScR framework developed by Tricco et al.1. We will search the following databases – Medline, CINAHL, Embase, Joanna Briggs Institute (JBI), Cochrane Library and PubMed from January 2010 to March 2021. Trial registries (e.g. ISRCTN, ANZCTR and clinicaltrials.gov) and websites and publications of professional associations for wound care will also be searched. Two reviewers will independently screen all titles, abstracts and full text for articles to include. Conflicts will be solved by a third reviewer. This scoping review will include both qualitative and quantitative studies on acute wounds conducted in Australia. We will extract data from eligible articles and results will be grouped according to area of research and synthesised in a narrative review. Ethics and dissemination. As we will use data (i.e., journal articles) from publicly available platforms this scoping review does not require ethical approval. Findings will be disseminated through a peer-reviewed journal and conference presentation and social media platforms.

The aim of the current study was to examine use of moral disengagement among middle school students as bystanders to bullying, as well as the links between four domains of moral disengagement and bystander’s behaviors in bullying episode, including pro-bullying, victim-defending and passive bystanding behavior. Participants included 736 adolescents from the urban area of Hanoi (Mage = 13.69; 53.1% male). According to the main hypotheses, all four domains of moral disengagement were negatively correlated with victim-defending behavior and positively correlated with passive bystanding behavior, whereas only three sets of mechanisms were found to be related to pro-bullying behavior, including minimizing one’s agentive role, consequences distortion, and victim attribution. Linear regression analyses indicated that bystander’s behaviors were predicted by minimizing one’s agentive role. Differences regarding gender and grade were also found. These results highlight the importance of particular moral disengagement sets of mechanisms and have potential implications for prevention tackling bullying.

High concentration of particulate matter (PM) threatens public health and the environment. Increasing traffic in the city is one of the main factors for increased PM in the air. Urban green spaces play an important role in reducing PM. In this study, the leaf surface and in-wax PM (sPM and wPM) accumulation were compared for 11 plant species widely used for landscaping in South Korea. In addition, biochemical characteristics of leaves (ascorbic acid chlorophyll content, leaf pH, and relative water content) were analyzed to determine air pollution tolerance. Plant species suitable for air quality improvement were selected based on their air pollution tolerance index (APTI) and anticipated performance index (API). Results showed a significant difference according to the accumulation of sPM and wPM and the plant species. PM accumulation and APTI showed a positive correlation. Pinus strobus showed the highest PM accumulation and APTI values, while Cercis chinensis showed the lowest. In 11 plants, API was divided into five groups. Pinus densiflora was classified as the best group, while Cornus officinalis and Ligustrum obtusifolium were classified as not recommended.

Particulate matter (PM) is the most dangerous form of air pollution and is known to cause severe health problems to humans. Plants as biological filters can reduce PM in urban areas by accumulating PM on the surface and epicuticular wax of leaves. The present study determined the amount of PM (large PM (10–100 µm) and coarse PM (2.5–10 µm)) collected on 10 plant species from two sites (urban forest and roadside) of Cheongju City, South Korea. Selected leaf traits (chlorophyll a (Chl a), chlorophyll b (Chl b), total chlorophyll (TChl), carotenoid, relative leaf water content (RWC), specific leaf area (SLA), and pH of these plant species at the two sites were concurrently determined to find about the correlation between the leaf straits and PM accumulation on leaf. Study results showed that the amount of accumulated large PM (10–100 µm) and coarse PM (2.5–10 µm) were different depending on the plant species and the collection site. Plants from the roadside tended to have higher amounts of PM accumulation as compared to the same plant species from the urban forest. In addition, the amount of PM accumulated on the leaf surface was higher than that of the epicuticular wax. PM accumulation on the leaf surface was positively correlated with the amount of PM accumulated on the epicuticular wax. Among the 10 plant species selected, P. strobus, P. densiflora, M. denudata, and S. vulgaris were the most effective plant for PM accumulation, while M. glyptostroboides was the least effective plant ones. Chl a, Chl b, TChl, and carotenoid contents were higher in plants collected along the roadside than in those collected from the urban forest, whereas RWC was higher in plants from the urban forest. No distinct tendency was noted regarding the pH. Coarse PM (2.5–10 µm) was negatively correlated with leaf traits of plants along the roadside. The tolerance of plants to pollution might be due to an increase in chlorophyll content. Features of the leaf were also essential in increasing PM accumulation on the leaf surface.

Nanodiamond (ND) has recently emerged as a potential nanomaterial for nanovaccine development. Here, a plant-based haemagglutinin protein (H5.c2) of A/H5N1 virus was conjugated with detonation NDs (DND) of 3.7 nm in diameter (ND4), and high-pressure and high-temperature (HPHT) oxidative NDs of ~40–70 nm (ND40) and ~100–250 nm (ND100) in diameter. Our results revealed that the surface charge, but not the size of NDs, is crucial to the protein conjugation, as well as the in vitro and in vivo behaviors of H5.c2:ND conjugates. Positively charged ND4 does not effectively form stable conjugates with H5.c2, and has no impact on the immunogenicity of the protein both in vitro and in vivo. In contrast, the negatively oxidized NDs (ND40 and ND100) are excellent protein antigen carriers. When compared to free H5.c2, H5.c2:ND40, and H5.c2:ND100 conjugates are highly immunogenic with hemagglutination titers that are both 16 times higher than that of the free H5.c2 protein. Notably, H5.c2:ND40 and H5.c2:ND100 conjugates induce over 3-folds stronger production of both H5.c2-specific-IgG and neutralizing antibodies against A/H5N1 than free H5.c2 in mice. These findings support the innovative strategy of using negatively oxidized ND particles as novel antigen carriers for vaccine development, while also highlighting the importance of particle characterization before use.

Nanostructured lipid carriers (NLCs) are gaining attention as the new generation of lipid vehicles. These carriers consist of saturated lipids with small drops of liquid oil dispersed into the inner lipid matrix and are stabilized by a surfactant. Conventionally, NLC-based drug delivery systems have been widely studied, and many researchers are looking into the composition of NLC properties to improve the performance of NLCs. The membrane fluidity and polarity of self-assembling lipids are also essential properties that must be affected by membrane compositions; however, such fundamental characteristics have not been studied yet. In this study, NLCs were prepared from cetyl palmitate (CP), caprylic triglyceride (CaTG), and Tween 80 (T80). Structural properties, such as particle size and ζ-potential of the CP/CaTG/T80 ternary mixtures, were investigated. Then, the systematic characterization of self-assembly properties using fluorescence-based analysis was applied for the first time to the NLC system. As a final step, the ternary diagram was developed based on the self-assembly properties to summarize the possible structures formed at different compositions. The results showed four states: micelle-like, oil-in-water (O/W) emulsion-like, solid lipid nanoparticle-like, and intermediate (solid-liquid coexistence). For the purpose of making the lipid matrix more liquified, the heterogeneous state and the disordered state of the O/W emulsion-like structure might fulfill the criteria of NLCs. Finally, the ternary diagram provides new information about the assembly state of NLC constituents that could become an important reference for developing high-performance NLCs.

Fe2O3 nanoparticles were synthesized from iron nitrate [Fe(NO3)3·9H2O] by hydrothermal method for Fe-air battery anodes. The crystal structure and morphology of the obtained Fe2O3 powder were studied by x-ray diffraction and scanning electron microscopy. Fe2O3/acetylene black (AB) composite electrodes were fabricated by mixing the synthesized Fe2O3 nanoparticles with AB carbon and were then subjected to electrochemical measurements. Results indicated that the duration of hydrothermal treatment significantly influences the morphology and size of synthesized Fe2O3. The morphology and particle size of Fe2O3 also affect the electrochemical properties of Fe2O3/AB composite electrodes, viz., smaller particles provide greater capacity than larger ones. The resistance of electrodes gradually increases during cycling, thereby causing a decrease in the capacity of Fe2O3/AB electrodes.

Library and Information Service is a bridge which supports effectively for lectures, postgraduates and undergraduates in exploiting efficiently the information resources in the University Library. Therefore, the improvement of the quality of the Library and Information Service is a regular activity in university libraries. Based on the assessment reports and surveys concerning to the Library and Information Services at the University Library of Social Sciences and Humanities, Vietnam National University Ho Chi Minh City, the paper presents measure to improve this activity, thereby contributing to create valuable products and services in order to meet the needs of training and scientific research for users.

The sterol ergosterol (Erg) is ubiquitous in the membranes of lower eukaryotes such as fungi. To investigate the interactions between Erg and phosphocholine (PC) molecules, we studied ternary lipid mixture systems composed of unsaturated 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC), saturated 1,2-dipalmitoyl-sn-glycero-3-phophocholine (DPPC), and Erg. Bilayer membrane fluidity and polarity were systematically analyzed using fluorescent probes. The presence of ≥30 mol % of Erg exhibited a significant ordering effect and stabilized membrane properties when temperatures increased, suggesting that Erg has a similar function to cholesterol (Chol) in comparable lipid systems that form a liquid-ordered phase. Erg was also observed to have a significant condensing effect at the monolayer level in saturated PC-enriched systems. The phase behavior of Erg in bilayer systems was compared with that of Chol, with the data suggesting that Erg behaves in a similar manner to Chol in membranes enriched with saturated lipids.

Population aging, which is a global phenomenon, has strongly impacted the social lives of many societies around the world. In which, Japan and Vietnam are two of the twenty countries with the largest older population in the world. The “Kaso”- depopulation, has been occurring in rural Japan since the 1960s and has had negative impacts on community development. Vietnam in general, and Thua Thien Hue Province in particular is revealed to be in the beginning period of the “aging phase” - one of the Kaso signs. This paper attempts to clarify (1) how the extent of “Kaso” in Japan occurs in the study area of Vietnam; and (2) how is the inhabitant consciousness on daily life, socioeconomic development status and the concern of local people on the future development of rural community in context of projected population aging. Based on preliminary typology analysis of the demographic statistics (total population, aging population structure) of Thua Thien Hue at the commune level during the period of 1989-2012, two rural communes with aging population characters were chosen for further analysis through household questionnaires. The research result demonstrated that there has been similar to the initial situation of Kaso in rural Japan. However, the deep analysis result indicated that the presence of rural people’s negative consciousness of community development is not strong. Those preliminary results enable to emphasize significant importance on providing implicit information on the negative consciousness of rural people regarding the future of rural Vietnam.

This study investigated whether screening for symptoms of mental disorders and referral to mental health services was associated with decreased depression symptoms among people living with HIV/AIDS (PLHIV) in Vietnam. Four hundred PLHIV (63.5% male, mean age 34.8 (SD = 6.8) years) at two outpatient clinics in Ho Chi Minh City were interviewed by psychiatrists and also completed the Center for Epidemiologic Studies-Depression scale (CES-D). One hundred and seventy-four (43.5%) were identified with symptoms of a range of mental illnesses, including depression, anxiety, alcohol use disorder, substance use disorder and HIV associated dementia and were referred to mental health services. Of the 174 PLHIV referred, 162 (93%) returned and completed the CES-D three months later and 125 of these 162 (77%) had attended a mental health service and undertaken treatment. A significant improvement was found in the mean CES-D scores of the 125 attenders from baseline (M = 19.0, SD = 7.5) to month three (M = 11.7, SD = 7.9, p < 0.001). PLHIV who had attended a mental health service and undertaken treatment demonstrated a greater reduction of mean scores on the CES-D compared to PLHIV who had either received a referral but not attended a mental health service to undertake treatment, or not been referred initially.

This paper analyzes recreation demand on the fringe of an urban center in Norway. Specifically, it investigates the potential impact of wind energy projects on local recreation values. Recreation areas near cities are often scarce and under increasing pressures from growing populations with associated real-estate development and expanding or emerging industries. Hence, public planners and policy makers who seek to make optimal resource management decisions need information on all opportunity costs, including those associated with diminished recreational access or quality. Two separate case studies utilize the travel cost method (TCM) to derive baseline recreation demands. Supplementary information from contingent behavior (CB) scenarios provides identification of the impact of wind turbines on recreation benefits. For a unique comparison, one case examines a possible inland wind farm near a popular local mountain area, whereas the other case examines an offshore wind farm near local beaches. Econometric estimations are performed in a joint revealed preference (RP) – stated preference (SP) pseudo-panel count-data framework. The analysis generates baseline consumer surplus estimates in the range of NOK 70–155 per trip and indicates that the wind turbines would have negative impacts that are both statistically and economically significant.