Purpose – Brand personality plays an important role in the development of tourists’ self-image congruence and revisit intention. This paper attempts to shed light on the relationship between brand ...personality and self-image congruence and revisit intention through a quantitative analysis. Design – Data were collected from 496 Vietnamese tourists who visited the top five tourist sites in Vietnam, including Ha Long, Phu Quoc, Sapa, Nha Trang, and Hoi An. Methodology – By using SEM in AMOS version 24 CFA was performed to test the the overall measurement model. Findings – Multivariate data analysis demonstrated that five dimensions of brand personalitỵ (Excitement, Sincerity, Sophistication, Competence, and Ruggedness) have a positive effect on self-image congruence and revisit intention. While excitement appears to be most helpful for developing self-image congruence, sincerity has the highest benefit for increasing revisit intention, sincerity has the highest utility for increasing revisit intention. In addition, revisit intention is most influenced by excitement and least influenced by sophistication through selfimage congruence. Originality of the research – The findings highlight the important role of attributes associated with tourist destinations. Managers in the tourism sector should be familiar with these characteristics in order to position or strengthen their destination’s brand with the aim of delivering to each tourist group a customized experience that resonate with their shared values. The insights provided by this paper also have important implications for travel companies in the gradual recovery of the country’s smoke-free industry under the conditions of the COVID -19 pandemic
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.
Scientific collaboration; scientific publishing; economics discipline; Vietnam; Bayesian analysis.
•Salinity intrusion (SI) is intensified in the Vietnamese Mekong Delta (VMD).•Freshwater exploitability is investigated to cope with SI driven by climate change.•SI in the VMD has progressively ...increased and started earlier in the dry season.•Early and the late of the dry season are suitable time for freshwater exploitation.•Storing freshwater in the river is a promising strategy.
Climate change-driven sea level rise has intensified salinity intrusion (SI) in deltas worldwide, posing significant threats to the exploitation of freshwater resources. In the Vietnamese Mekong Delta (VMD), the third largest delta globally, SI is a recurring challenge along the coastline, degrading freshwater resources for agricultural and domestic use and affecting socio-economic development. In this paper, we investigate the spatiotemporal extent of salinity intrusion in the Ben Tre Province, the hotspot of salinity disaster within the VMD. Long-term salinity monitoring data (25 years from 1996 to 2020) has been analyzed, and a 1D (Mike 11) coupled with 3D hydrodynamic model (Mike 3) was developed. Three scenarios were used to investigate the freshwater resources exploitation: (i) the year of investigation (2021), (ii) 2021 to 2030 climate change impacts, considering different annual exceedance probability of the upstream Mekong discharge (i.e., average flow, relatively low, low and very low), and (iii) extreme salinity intrusion (i.e., the 2016 condition). Our results indicated that salinity patterns are well-stratified at the beginning and end of the dry season but well-mixed during the middle period. Furthermore, over the last 25 years, SI has progressively increased and started earlier in the dry season. The modeling scenarios for SI have also revealed a growing complexity in the exploitation of freshwater resources, highlighting challenges related to timing, depth, and geographical location. The exceedance probability scenarios disclosed higher and deeper salinity intrusion along the channel in VMD, ranging from 50 % to 95 %. This poses significant limitations on the feasibility of freshwater exploitation throughout the Ben Tre Province. Under the current trajectory of climate change, the 2030 scenario anticipates salinity intrusion reaching further inland from the 2021 scenario. This is likely to exacerbate the existing challenges in freshwater resource exploitation, even with comprehensive water infrastructure. We, therefore, propose several management strategies to adapt to salinity intrusion: storing freshwater in main rivers, maintaining consistent operation of water infrastructure systems, and encouraging water-saving distribution and exploitation methods. Moreover, we also recommend supporting the development of new drought-tolerant crop patterns.
Science, technology, engineering, and mathematics (STEM) education has become a
critical factor in promoting sustainable development. Meanwhile, book reading is
still an essential method for ...cognitive development and knowledge acquisition.
In developing countries where STEM teaching and learning resources are limited,
book reading is an important educational tool to promote STEM. Nevertheless,
public data sets about STEM education and book reading behaviors in emerging
countries are scarce. This article, therefore, aims to present a data set of
4,966 secondary school students from a school-based data collection in Vietnam.
The data set comprises of five major categories: 1) students' personal
information (including STEM performance), 2) family-related information, 3) book
reading preferences, 4) book reading frequency/habits, and 5) classroom
activities. By introducing the designing principles, the data collection method,
and the variables in the data set, we aim to provide researchers, policymakers,
and educators with well-validated resources and guidelines to conduct low-cost
research, pedagogical programs in emerging countries.
Profound dengue shock syndrome (DSS) complicated by severe respiratory failure necessitating mechanical ventilation (MV) accounts for high case fatality rates among PICU-admitted patients. A major ...challenge to management is the assessment of intravascular volume, which can be hampered by severe plasma leakage and the use of MV.
Retrospective cohort, from 2013 to 2021.
Sixty-seven children with profound DSS supported by MV, some of whom underwent bedside point-of-care ultrasound (POCUS) for assessment and monitoring of hemodynamics and fluid administration.
PICU of the tertiary Children's Hospital No. 2 in Vietnam.
None.
We analyzed data clinical and laboratory data during PICU stay. In particular, during use of MV (i.e., at times 0-, 6-, and 24-hr after commencement) and fluid resuscitation. The primary study outcome was 28-day in-hospital mortality, and the secondary outcomes were associations with changes in hemodynamics, blood lactate, and vasoactive-inotrope score (VIS). Patients had a median age of 7 years (interquartile range, 4-9). Use of POCUS during fluid management (39/67), as opposed to not using (28/67), was associated with lower mortality (6/39 15% vs. 18/28 64%; difference 49 % 95% CI, 28-70%, p < 0.001). Use of POCUS was associated with lower odds of death (adjusted odds ratio 0.17 95% CI, 0.04-0.76, p = 0.02). The utilization of POCUS, versus not, was associated with greater use of resuscitation fluid, and reductions in VIS and pediatric logistic organ dysfunction (PELOD-2) score at 24 hours after MV and PICU discharge.
In our experience of pediatric patients with profound DSS and undergoing MV (2013-2021), POCUS use was associated with lower odds of death, a higher volume of resuscitation fluid, and improvements in the blood lactate levels, VIS, and PELOD-2 score.
Abstract
In Ho Chi Minh City, Vietnam, there are about 9 thousand tons of domestic waste every day and 73% of them are treated by using landfill sites 2. With the population growth rate in recent ...years, the generated waste volume will then increase in the future and is estimated to reach a total of around 13 thousand tons that could cost Ho Chi Minh City about 260 thousand dollars in treating this waste in 2025 3. Although this treatment method is not without advantages, the downsides will be far more significant. Moreover, in recent years, the cultivation of Perionyx Excavatus, a species that had been reported to have the ability to treat organic waste in some foreign articles, has become increasingly popular in Vietnam. So, this research was aimed to evaluate the potentiality of Earthworm (Perionyx Excavatus) for food waste management of households in Lab-scale in Ho Chi Minh City, Vietnam. According to this study, the average outdoor humidity and temperature of Ho Chi Minh City are higher than optimal conditions to raise Earthworm. In addition, the percentage of biomass is highest when rising the proportion of food waste and cow dung 4:6, respectively. It’s a point for encourage the applying Earthworm (Perionyx Excavatus) for food waste management in Ho Chi Minh.
Using the capacitively coupled contactless conductivity detection (C4D) principle in microfluidic systems has attracted researchers from various fields. Different measurement methods using this ...structure in microchips have been developed to overcome the difficulties and limitations of the conventional C4D structures. In this study, we proposed and implemented a passive wireless method utilizing C4D structure to monitor the fluidic flow based on the principle of a passive wireless LC sensor combined with the microfluidic C4D structure. NaCl with different concentrations has been used in the experiments for evaluating the performance of the proposed structure. The dependence of the resonant frequency shifts on the conductivity of the fully filled channel and in-flow occurred micro-droplets were examined. The experimental results reveal that the detector works well to detect the NaCl concentration ranging from 0.01 M to 1 M. In particular, the resonant frequency of the sensing resonator decreases as the concentration of NaCl, i.e., the conductivity of the solution, increases. Based on the shift in resonant frequency and the acquired reflection coefficient S 11 value, the generated in-flow micro-droplets can also be detected. This work demonstrates that the implementation of LC wireless sensing technique in fluidic flow detection is reasonable, and it will lay the foundation for future research on the miniaturization and simplification of sensing-microfluidic systems.
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