Students’ Perceived Well-Being and Online Preference : Evidence from Two Universities in Vietnam during COVID-19

University education is still being impacted two years after the COVID-19 outbreak. We performed a rapid survey in February 2022 at two public universities in Vietnam to examine the effects of the pandemic on well-being and the factors that may associate with online class preference among university students as well as to investigate the need for support to improve resilience. A web-based survey included 1589 undergraduate students in total. Both quantitative and qualitative data analysis was carried out. Overall, approximately a quarter of respondents said that they perceived an influence on their health, 42.9% expressed stress, and more than 70% reported worrying about the future. In total, 61.9% of the respondents reported having satisfaction with online classes, while over half of them preferred a program of 50% online classes. Students who live in an urban area, are female, have had pre-COVID-19 campus life experience, have decreased income, and/or experience low online satisfaction and over-information may be in need of more support. The results show implications for universities to consider policies addressing well-being and post-pandemic online education. Providing support to university students to improve their resilience against the impact on their studying, campus life, health, and well-being should be prioritized during and post-pandemic

Factors affecting the adoption of climate-smart aquaculture (CSAq) in the North Central Coast of Vietnam

Climate-smart aquaculture (CSAq) is considered an appropriate and effective adaptation approach for the coastal aquaculture sector under the climate change phenomenon. This study, applying probit model, aims to assess the influence of several factors on the farmers’ decision to apply CSAq practices in extensive coastal shrimp farming. Data were collected from interviews with 200 households who have both already applied and have yet to apply CSAq practices in five coastal districts of Thanh Hoa Province. The results showed six key factors that influenced the decision of the farmers to apply CSAq practices: availability of household labor; access to information on CSAq practices; market price of products applying CSAq practices; economic efficiency; ability to ensure food security; and improved pond environment when applying CSAq practices. These factors explained 69.41% of their decision to apply CSAq, among which economic efficiency had the greatest impact (30.2%). Market prices and access to information about CSAq are also important factors with respective levels of influence at 16.0% and 14.9%. The result implies that strengthening access to CSAq information and improving technical understanding of CSAq practices are important solutions to upscale CSAq in the North Central Coast of Vietnam

Xác định yêu cầu cho sản xuất lúa ứng dụng công nghệ cao tại tỉnh An Giang trên cơ sở tham vấn các chủ thể khác nhau

Nghiên cứu nhằm xác định các yêu cầu cho sản xuất lúa ứng dụng công nghệ cao dưới hình thức sản xuất đại trà, từ đó làm cơ sở khoa học xây dựng vùng có khả năng phát triển lúa ứng dụng công nghệ cao tại tỉnh An Giang. Nghiên cứu đã sử dụng phương pháp hệ thống hóa cơ sở lý luận về nông nghiệp ứng dụng công nghệ cao, tham vấn ý kiến chuyên gia và phương pháp đánh giá đa tiêu chí. Kết quả nghiên cứu đã xác định được bốn yêu cầu chung và 20 yêu cầu cụ thể cho sản xuất lúa ứng dụng công nghệ cao tại tỉnh An Giang. Trong đó, yêu cầu cụ thể về thị trường tiêu thụ, lợi nhuận, chi phí đầu tư, khả năng quản lý, phương thức tổ chức sản xuất, thổ nhưỡng, nguồn nước và các yêu cầu môi trường được quan tâm nhiều, yêu cầu nguồn lao động và quyền sử dụng đất ít được quan tâm từ các chủ thể. Bên cạnh đó, các chủ thể cũng cho rằng cần quan tâm đến quy mô diện tích canh tác khi thực hiện ứng dụng công nghệ cao. Kết quả này là cơ sở bước đầu xây dựng được các tiêu chí đánh giá khả năng phù hợp để xác định vùng sản xuất lúa ứng dụng công nghệ cao, hướng đến phát triển nông nghiệp bền vững trong thời kỳ hội nhập

VỀ CHỈ SỐ CHÍNH QUY CASTELNUOVO-MUMFORD CỦA VÀNH TỌA ĐỘ CỦA TẬP n + 3 ĐIỂM BÉO KHÔNG SUY BIẾN TRONG KHÔNG GIAN XẠ ẢNH Pn

In this paper we calculate the Castelnuovo-Mumford regularity index of the coordinate ring of n + 3 a set of  non-degenerate fat points in Pn for almost all of cases.Trong bài báo này chúng tôi tính chỉ số chính quy Castelnuovo-Mumford của vành tọa độ của tập n + 3 điểm béo không suy biến trong Pn cho hầu hết các trường hợp của tập điểm

Novel dependencies of currents and voltages in power system steady state mode on regulable parameters of three-phase systems symmetrization

The unbalanced mode, negative/zero sequence, variation of real power are caused by the nonlinear or unbalanced loads increase the power transmission losses in distributing power systems and also harmful to the electric devices. Reactive power compensation is considered as the common methods for overcoming asymmetry. The critical issue in reactive power compensation is the optimal calculation of compensation values that is extremely difficult in complex circuits. We proposed a novel approach to overcome these difficulties by providing the creation of new analytical connections of the steady-state mode parameters (voltages, currents) depends on the controlled parameter for the arbitrary circuits. The base of our approach to reactive power compensation is the fractional-polynomial functions. We present a new description of the behavior of voltages and currents depending on the controlled parameters of the reactive power compensation devices, and we prove its effectiveness

Gravity terrain correction for mainland territory of Vietnam

Terrain corrections for gravity data are a critical concern in rugged topography, because the magnitude of the corrections may be largely relative to the anomalies of interest. That is also important to determine the inner and outer radii beyond which the terrain effect can be neglected. Classical methods such as Lucaptrenco, Beriozkin and Prisivanco are indeed too slow with radius correction and are not extended while methods based on the Nagy’s and Kane’s are usually too approximate for the required accuracy. In order to achieve 0.1 mGal accuracy in terrain correction for mainland territory of Vietnam and reduce the computing time, the best inner and outer radii for terrain correction computation are 2 km and 70 km respectively. The results show that in nearly a half of the Vietnam territory, the terrain correction values ≥ 10 mGal, the corrections are smaller in the plain areas (less than 2 mGal) and higher in the mountainous region, in particular the correction reaches approximately 21 mGal in some locations of northern mountainous region. The complete Bouguer gravity map of mainland territory of Vietnam is reproduced based on the full terrain correction introduced in this paper

STUDY ON REMOVING COLOR IN THE EXTRACT SOLUTION FROM VEGETABLES FOR ANALYZING ORGANOCHLORIDE PESTICIDES RESIDUE IN HANOI MARKETS

Joint Research on Environmental Science and Technology for the Eart

The role of environmental social and governance in achieving sustainable development goals: evidence from ASEAN countries

Recently, sustainable development goals (SDGs) have become an international requirement that needs to be achieved and requires the focus of recent literature and regulation authorities. Thus, the current article investigates the impact of environmental, social, and governance (ESG) and economic growth on the SDG of ASEAN countries. The current study has extracted secondary data from secondary sources such as SDGs reports and world development indicators (WDI) from 1986 to 2020. The present study has used the Panel Autoregressive Distributed Lag (ARDL) to test the linkage among the variables. The results highlighted that the environmental score, social score, governance score, and economic growth positively associated with the ASEAN countries’ SDGs. The current article provides help to new researchers while conducting research on achieving SDGs and guides policymakers while establishing policies regarding achieving the SDGs through ES