Article of Science and Technology Development
Chuyên san của Trung tâm Phát triển Khoa học và Công nghệ Trẻ
Trung tâm Phát triển Khoa học và Công nghệ Trẻ
Copyright (c) 2022 Article of Science and Technology Development
COVID-19 VACCINE: PATENT AND PUBLIC BENEFITS
Covid-19 vaccine has been researched, developed and widely applied around the world. This is the result of the creative labor process of subjects in the field of pharmaceutical research. Intellectual property law protects industrial property rights for Covid-19 vaccine in the form of patent, allowing the owner to exploit for a certain period of time. However, in order to protect the public benefits, especially the right to access pharmaceuticals, the legal provisions on the protection of Covid-19 vaccine have their own characteristics. Since then, people especially developing countries have better opportunities to access this product. The article analyzes the ability to protect the Covid-19 vaccine in accordance with the provisions of intellectual property law and the limits of protection to protect the public interest.
MENTAL HEALTH IN COVID-19 PANDEMIC AND LONG COVID SYNDROME: OVERVIEW
The COVID-19 panademic is seen as a cataclysmic event, bringing about a crisis on a global scale. Since its occurrence, normal daily lives have been tremendously affected, resulting in fear, rising levels of stress and fatigue. Hence, the number of mental health issues experiencing a surge in quantity is but a predictable matter. Among COVID-19 patients, not only is their well-being influenced negatively during the course of infection but also in the long term after recovery, namely the “long COVID syndrome”. Prolonged ramifications of COVID-19 on human’s physical and mental statuses have been seen in multiple records and articles but haven’t quite gotten sufficient attention and research. Therefore, we conducted a meta-analysis of relevant research papers and articles to shed more light on the subject of COVID-19 impact before, during and after infection and provide a comprehensive view on the topic, thus offering suggestions to enhance people’s physical and mental conditions, even after recuperation.
SARS-COV-2 ALWAYS CHANGES: WHAT DO WE KNOW ABOUT CURRENT VARIANTS?
Since 11/03/2020, WHO had officially announced Severe Acute Respiratory Syndrome – COVID 19 as a global pandemic, causing immensive pain and human suffering in every continent. During the fourth outbreak of COVID 19 in Viet Nam, infected cases were reported in 58 over 63 provinces and cities, with Ho Chi Minh city held the leading number of cases: over 342,000 infected patients and over 12,000 death cases (updated to 29/09). COVID 19 had adversely affect the country and raised many concerns among the society. Therefore, this paper aimed to provide a general view about COVID 19 under the scope of science. We will answer several common questions and clarify the misconceptions about COVID 19 using findings from the latest researches. The first part discussed about current Sars-Cov-2 variants, particularly the new Delta variant, while the lifespan of virus in different environments, as well as the symptoms of COVID 19 and prevention methods were mentioned in the latter.parts.
RODENT MODELS IN COVID-19 VACCINE RESEARCH
The COVID-19 pandemic is taking place globally, causing severe economic consequences. The number of deaths of the disease stays high and because of the new virus variants, it is likely to increase. The study of disease and the development of therapeutic vaccines have been utilizing animal models, especially rodent models infected with SAR-CoV-2. Commonly used models include transgenic mice (K18-hACE2, Ad-hACE2), Syrian Hamster and Ferret. They show a lot of similar symptoms to human when infected such as pneumonia, respiratory failure, difficulty breathing. In addition, preclinical vaccine trials in rodent models have also yielded positive results, thereby paving the way for clinical and clinical trials.
IMPACT OF COVID-19 VACCINATION ON MORTALITY RATE - LESSONS FROM THE WORLD
The acute respiratory disease (COVID-19) caused by SARS-CoV-2 has been a pandemic, causing severe consequences on mental and physical health and all aspects of society. Countries around the world have been issuing and updating policies and recommendations to minimize the potential of the infection. To evaluate the correlation between countries' policies and epidemiological factors, the study used primary and secondary data from five countries including, the United States, the United Kingdom, Israel, India, and Singapore. Based on correlation analysis and visualization using heatmap graphs, the research showed a relationship between vaccination and epidemiological factors affecting new infections and mortality, then related to the vaccination program and the proposal for the post-lockdown process, opening the economy in Vietnam
PERFECTING THE LAW ON PRODUCTION RESEARCH, CLINICAL TRIALS AND LICENSING OF COVID-19 VACCINE REGISTRATION AND USE IN VIETNAM
The article focuses on analyzing the legal provisions on research, production, clinical trials and licensing of COVID-19 vaccines in Vietnam in case of urgency, clarifying the situation of the implementation of legal regulations as well as making some complete recommendations on this issue..
DETECTION OF COVID-19 FROM CHEST X-RAY USING DEEP LEARNING
As the Coronavirus Disease 2019 (COVID-19) have left devastating consequences over the world, an effective screening test procedure is crucial to strengthen public health and put the disease to a halt. This study introduces a refined pipeline to train deep learning predictive models for the detection of COVID-19 from chest X-rays, as well as the resulting models themselves. The pipeline involves multiple techniques to combat overfitting and optimize predictive results, such as data augmentation, Bayesian optimization for hyperparameter tuning, selecting the appropriate performance metric, and early stopping during model training. On the COVID-XRay-5K v3 dataset, the three models, ResNet50, NASNet-A-Mobile, and Xception, achieved the areas under the precision-recall curves of 0.9773, 0.9633, and 0.9003; and the areas under the receiver operating characteristic curves of 0.9940, 0.9964, and 0.9812, respectively. At 98% recall (sensitivity), they sustained high specificity of 97.53%, 97.60%, and 86.00%. With such performance, these deep learning models are promising tools to aid in the combat against the pandemic.
STUDIES ON THE LINK BETWEEN SELENIUM AND COVID-19
Coronavirus 2019 (COVID-19), an acute respiratory syndrome caused by coronavirus 2 (SARS-CoV-2), was discovered in 2019. However, it spreads quickly and creates many dangerous strains affecting hundreds of millions of people worldwide, with high mortality rates. Recent studies show that balancing and supplementing the body with nutrition determines the risk of contracting and recovering from SARS-CoV-2 infection. Selenium is one of the main trace elements needed by the body with many essential activities in supporting immunity, antioxidant and preventing viral infections, especially selenium in nano form. The review reveals several worldwide studies to date on the role of nano selenium in the fight against COVID-19. Thereby provides a rationale for future studies on selenium and nano selenium applied in the prevention and treatment of COVID-19.
OPTIMIZING THE PROCESS OF SEPARATION OF WATER WITH VACUUM TREATMENT OF BLACK MARBLE TOMATOES (Solanum lycopersicum cv. OG)
Osmosis is a treatment method that partially reduces the moisture of vegetables before drying. The application of low pressure during the first few minutes of osmosis pushes the trapped gases out and facilitates the penetration of hypertonic solution into the food, thereby improving efficiency. mass transmission. In this study, the effects of independent variables (concentration of saccharose 52-68oBrix solution, vacuum 516-684 mmHg and vacuum treatment time 5-15 minutes) on water loss as well as increase in function The dry quality of the black ball tomatoes (Solanum lycopersicum cv. OG) was investigated. The experiment is arranged optimally according to the response surface method (RSM) with the central complex model (Central Composite Design - CCD). Under optimal conditions (concentration 59,38oBrix saccharose solution, vacuum degree 627.22 mmHg, vacuum treatment time 11.61 minutes), the maximum water loss is 28.60% of the sample weight after 4 hours of osmosis, respectively, the dry matter content increased to 2.94%. Meanwhile, the corresponding values for the control sample (without vacuum treatment) were 15.62% and 1.66% after 5.5 hours of osmosis. This proves the effectiveness and potential of the application of vacuum treatment in the osmotic water separation process.
Copyright (c) 2021 Article of Science and Technology Development
THE SITUATION OF PRESERVATION OF AQUATIC INGREDIENTS AFTER HARVEST AND FOOD HYGIENE AND SAFETY AT THE BUYING AND TRANSPORT ESTABLISHMENTS
Ensuring the quality and hygiene of food safety for (nlts) raw materials is necessary for domestic consumption and export. The study has focused on assessing the situation of preservation of nlts and the state of food safety at the buying and transport establishments in the distribution chain. By the method of collecting the secondary document, the same interview, monitoring related subjects in the distribution chain, has built up the plan for purchasing, transporting nlts' s acquisition and transportation. Starting from farming and catching through intermediate stages to bring up processing or retail establishments. In the process of distribution of nlts is forwarded to the purchasing establishments including purchasing agents, vựa, and leads. The main activities in these locations are described, and the mistakes in preservation affect quality and loss of atvs. The study also assessed the level of security of nlts through examination of microorganisms, instructions on hygiene and microorganisms of samples collected by samples. The sample is not met by the ministry of health as prescribed by the ministry of health, 46. 66% in the basket and fishing ports ; 41. 33% at retail markets and lead markets. The final part of the study suggests that the quality of nlts and ensure atvst by adopting the combination of schools, research institutes, management agencies and the same society, construction.
ESTABLISHING THE REAL-TIME PCR ASSAY TO DETECT TROPOMYOSIN GENE CAUSING ALLERGY OF SEAFOOD ORIGIN
Seafood is an important dietary source of protein in the world. In addition to the many benefits of seafood such as heart prevention, micronutrient supplementation, high macronutrients, etc., seafood itself is the source of allergies affecting health, even threatening to human’s life with symptoms related to the immune system: red rash, dermatitis, asthma, etc. Gen Tropomyosin - encodes for the protein Tropomyosin, the main allergenic molecule of seafood origin. Therefore, this study aims to establish a detection process, namely Real-time PCR assay, to detect the Tropomyosin gene - a seafood-derived allergen that can be applied in Vietnam. The results, successfully built a positive control for the Real-time assay of detecting the Tropomyosin gene: recombinant vector pUC19-Tropo; Successful design of Real-time PCR assay with TropoF and TropoR primers (amplification of Tropomyosin gene), N18SF and N18SR primers (amplification of 18S rRNA gene – internal control) applied in Tropomyosin gene amplification of seafood origin with the following parameters: detection limit: 101,% CV of the intra assay: 3.64%,% CV of the inter assay: 2.81%. The percentage of commercial food samples positive for Tropomyosin gene was 37/56, reaching 66.11%. Can the successful detection of an allergen help food manufacturers to put a mark on the label so that consumers can choose to use it? Thereby, it helps to reduce the rate of allergies in people using processed foods.
RESEARCH OF EXTRACTION ASTAXANTHIN FROM CRAB SHELLS (Scylla paramamosain) BY SUNFLOWER OIL
Astaxanthin is a pigment of the carotenoid group with strong antioxidant activity and several important biological functions. During the production of chitin / chitosan from crab shells, we can extract and obtain high value astaxanthin, while minimizing environmental pollution. This study aimed to determine the appropriate temperature, time and solvent extraction rate of astaxanthin. Crab shells are soaked in sunflower oil with the ratio of sunflower oil / crab shells (1/1-5/1), soaked at (60-100oC), for (1-5 hours). The highest astaxanthin content obtained was 147.58μg / ml with the soybean oil / crab shell ratio 3/1, at 90oC and soaked for 5 hours.
STUDY ON THE DRYING CONDITION OPTIMIZATION OF THE HEATING PUMP AND THE INFRARED RADIATION FOR THE TRICHOGASTER PESTORALIS
The paper focused on the drying condition of the infrared radiation combining the heat pump for the silver jewfish basing on the level 1 multi-factor experimental planning model of Box-Wilson. The results showed the mathematical model (Y= 7.11 – 0.05X1 -0.49X2 + 0.75X3- 0.7 X1X2 – 0.8 X1X3+ 0.07X2X3) that expressed the relationship between the drying time (Y) and the impact factors (the sorbitol concentration (X1), the drying temperature (X2), and the wind speed (X3), in which the the wind speed (X3) affected the drying time stronger than other factors. The optimization condition of drying was the sorbitol concentration of 10,6%, the drying temperature at 530C, the wind speed of 2.1m/s, and the drying time for 7.57 hours. Dried silver jewfish at the optimum condition got the sensory quality, food hygiene, and safety higher than the air drying and sun drying methods. The results are a scientific basis for completing the technology and widely deploying the drying method in production.
PROCESSING OF CUCUMIS MELO L. POWDER BY FREEZE- DRYING METHOD
To get the best out of Cucumis melo L. in postharvest, we made the melon powder to diversify products in the market, advance nutrient’s value. The melon juice was added maltodextrin to soluble solid content 190Brix, freezed and freeze-drying. The product which after processing had still high nutrition, great performance recovery, characteristic colour, good sensory quality.
RESEARCHING AND SELECTING RICE GENOTYPES FOR SALT TOLERANCE WITH HIGH YIELD, GOOD GRAIN QUALITY ADAPTED TO CLIMATE CHANGE
The aim of this research was to find out rice genotypes for salt tolerance with high yield, good grain quality in field conditions. The experiment was arranged by randomized complete block design, 3 replicates, 7 treatments with 5 rice mutated lines (NQBĐB 1-2-1-1, NQBĐB 2-1-6-3, NQBĐB 1-2-1-2, NQBĐB 2-1-6-2, NQBĐB 1-2-3-1) and the sensitive control was IR28, the local control was OM4900. The results of experiment clearly showed that two lines TG1 (NQBĐB 1-2-1-1) and TG4 (NQBĐB 2-1-6-2) were the greatest. TG1 line with yield 4,47 tons/ha, amylose content 16,78%, protein content 7,49%. TG4 line with yield 4,67 tons/ha, amylose content 15,42%, protein content 5,58%. The two lines had short maturity (96 days), could tolerate to 8,15 dSm-1 in field conditions, adapt with the model of shrimp-rice at coastal areas.
DISPOSABLE BIODEGRADABLE FOOD CONTAINER FROM COIR
In recent times, due to the negative environmental impacts of synthetic plastics, the development of biodegradable packagingfor both industrial and commercial applications is very essential. Materials used in this study included: Coir (coconut fiber, 14%) combined with modified starch 1403 (7%) and glycerol (2%). Food containerswere created by pressing materials to form desired shapeand then coated with paraffin to enhance their hardness and water resistance. The obtained food containers hada hardness of 53.6852 ± 0.784 N, and the water permeability rate of the containerswhen used for storing food at 70oC after 3 hourswas 12.8169 ± 0.53372% (w/w). The packagingwas not affected by acidic agents so itcan be applied to foods with low pH values. The sensory evaluation results showed that there was no difference in the taste of drinking water containing in research packaging and PET packaging. Packaging was decomposed into small pieces after 25 days of landfill. In conclusion, coir packaging holds great potential for the formulation of biodegradable containers with the physical properties suitable for food applications in direct contact.
EFFECTS OF CARRIERS AND PRIMARY TOTAL SOLUBLE SOLID ON TOTAL POLYPHENOL AND CHLOROPHYLL CONTNENT OF PANDANUS AMARYLLIFOLIUS EXTRACT POWDER
This research was conducted to identify influences of carriers (Gum Arabic, Maltodextrin) and total soluble solid after mixing (5-15oBrix) on TPC and chlorophyll content of Pandanus amaryllifolius extract powder. The results showed that, Maltodextrin and Arabic gum were two types of suitable carries for spray drying with a Brix degree after mixing was 10-15oBrix. Among all the powder samples, samples produced with 10oBrix had the highest TPC (2.99 mg GAE/g) with maltodextrin and Chlorophyll a (17.40 μg/g), Chlorophyll b (27.95 μg/g) and total Chlorophyll (45.51 μg/g) with Arabic gum carrier. However, because the high moisture (7.56% for sample 10oBrix with maltodextrin) is not suitable for the shelf life of the powdered product, this condition cannot be considered as favorable condition for pineapple leaf powder production. Therefore, samples produced by mixing with Arabic gum to 10oBrix are more suitable with a powder moisture content of 5.03% with a corresponding dispersion of 17 seconds when reconstituted.
ỨNG DỤNG CÔNG CỤ SPSS VÀ FSQCA TRONG PHÂN TÍCH ẢNH HƯỞNG CỦA CÁC YẾU TỐ TÂM LÝ ĐẾN HÀNH VI TIÊU DÙNG BỀN VỮNG ĐỐI VỚI THỰC PHẨM CỦA GIỚI TRẺ HIỆN NAY TẠI THÀNH PHỐ HỒ CHÍ MINH
Tiêu dùng bền vững là một vấn đề nghiên cứu đáng được quan tâm trong những năm gần đây vì không chỉ là cách thỏa mãn nhu cầu bản thân ở hiện tại mà còn là sự quan tâm, bảo vệ môi trường sống cho thế hệ tương lai. Bằng việc nghiên cứu các yếu tố tâm lý tác động đến hành vi nhằm xóa đi rào cản từ ý định đến hành vi của người tiêu dùng, nghiên cứu tập trung vào năm yếu tố tâm lý là Thái độ với tiêu dùng bền vững, Ảnh hưởng nhận thức thị trường, Hiểu biết về tiêu dùng bền vững, Nhận thức hiệu quả và Động lực cho trách nhiệm với môi trường. Kết quả cho thấy Động lực cho trách nhiệm với môi trường có tác động lớn nhất đến hành vi tiêu dùng bền vững và điểm mới của nghiên cứu là tìm ra vai trò xúc tác của Nhận thức ảnh hưởng thị trường trong mối quan hệ giữa Hiểu biết về tiêu dùng bền vững, Nhận thức hiệu quả và Động lực cho trách nhiệm với môi trường lên hành vi tiêu dùng bền vững đối với thực phẩm. Kiến nghị đề xuất nhằm nâng cao nhận thức của người tiêu dùng về các vấn đề thị trường nhằm thúc đẩy mạnh mẽ hơn hành vi tiêu dùng bền vững trong tương lai.
TÁC ĐỘNG HÀNH VI TÌM KIẾM THÔNG TIN TRÊN INTERNET ĐẾN LƯỢNG TIỀN GỬI TẠI CÁC NGÂN HÀNG THƯƠNG MẠI Ở VIỆT NAM
Đề tài nghiên cứu tác động của hành vi tìm kiếm thông tin liên quan trên Internet đến tổng lượng tiền gửi tại 17 Ngân hàng Thương mại Việt Nam, thông qua việc sử dụng Chỉ số khối lượng tìm kiếm (SVI) được lấy từ Google Xu hướng trong giai đoạn từ năm 2010-2019. Nghiên cứu sử dụng phần mềm Stata để kiểm định mô hình các yếu tố ảnh hưởng đến tổng lượng tiền gửi được nhóm tác giả đề xuất dựa trên những nghiên cứu trước. Kết quả hồi quy cho thấy, có bảy yếu tố ảnh hưởng đến tổng lượng tiền gửi của ngân hàng, cụ thể là các yếu tố mức độ tìm kiếm từ khóa “Lãi suất Ngân hàng X” và mức độ tìm kiếm từ khóa Trang web chính thức Ngân hàng X (logWS), mức độ tiếp cận của ngân hàng (được đo bằng số lượng chi nhánh và phòng giao dịch), khả năng tạo lợi nhuận (được đo bằng lợi nhuận sau thuế của ngân hàng), khả năng sinh lời (được đo bằng thương số giữa lợi nhuận thuần và tổng tài sản), tốc độ tăng trưởng kinh tế, tỷ lệ lạm phát. Như vậy, hai trong số năm SVI của năm từ khóa cho kết quả có tác động đến tổng tiền gửi của ngân hàng.
NHỮNG YẾU TỐ TÁC ĐỘNG ĐẾN LÒNG TRUNG THÀNH CỦA KHÁCH HÀNG TẠI CÁC CHUỖI CỬA HÀNG BÁCH HÓA XANH Ở THÀNH PHỐ HỒ CHÍ MINH
Nghiên cứu phân tích các nhân tố ảnh hưởng đến lòng trung thành của khách hàng khi mua sắm và đề xuất giải pháp nâng cao lòng trung thành của khách hàng đối với hệ thống chuỗi cửa hàng Bách Hóa Xanh trên địa bàn thành phố Hồ Chí Minh. Nghiên cứu thực hiện thông qua bảng câu hỏi khảo sát, sử dụng phân tích hồi quy đa biến qua phần mềm SPSS 20 với số lượng mẫu là 350. Sử dụng phương pháp định lượng, định tính, phân tích, so sánh,... Độ tin cậy của số liệu được kiểm định bằng hệ số Cronbach’s Alpha, phân tích nhân tố khám phá, xây dựng và kiểm định các thang đo để kiểm định mối quan hệ giữa các nhân tố trong mô hình nghiên cứu. Kết quả phân tích cho thấy mô hình nghiên cứu phù hợp với giả thiết đặt ra. Tất cả 06 giả thiết đều được chấp nhận có ảnh hưởng đến lòng trung thành của khách hàng khi mua sắm tại cửa hàng Bách Hóa Xanh ở thành phố Hồ Chí Minh. Từ đó, nhóm tác giả đề xuất giải pháp nhằm nâng cao chất lượng dịch vụ tại Bách Hóa Xanh bao gồm: Nâng cao cơ sở vật chất nhằm nâng cao sự tiện lợi của cửa hàng; tăng cường đào tạo, nâng cao chất lượng đội ngũ nhân viên; đảm bảo chất lượng hàng hóa và dịch vụ kèm theo.
NHẬN THỨC CỦA NGƯỜI TIÊU DÙNG ĐỐI VỚI VIỆC SỬ DỤNG HÀNG GIẢ NHÃN HIỆU: NGHIÊN CỨU THỰC NGHIỆM VỚI MẶT HÀNG ĐIỆN TỬ
Sự phát triển nhanh chóng của kinh doanh và sử dụng hàng giả nhãn hiệu gây ảnh hưởng tiêu cực tới nhiều công ty, nhiều ngành công nghiệp, thậm chí là với cả nền kinh tế và người tiêu dùng. Chính bởi vậy, nghiên cứu này được thực hiện với mục tiêu đánh giá các nhân tố tác động đến nhận thức của người tiêu dùng trong việc sử dụng hàng giả nhãn hiệu, cụ thể với mặt hàng điện tử. Nghiên cứu xem xét mối quan hệ của các kích thích tâm lý tới thái độ hữu dụng và khoái lạc cũng như ý định sử dụng hàng điện tử giả nhãn hiệu của người tiêu dùng dựa trên mô hình tâm lý học S-O-R sửa đổi. Mẫu nghiên cứu gồm 407 khách hàng, được thu thập tại hai thành phố phát triển nhất Việt Nam hiện nay là Hà Nội và TP.HCM. Kết quả nghiên cứu cho thấy thái độ của người tiêu dùng đối với hàng giả nhãn hiệu chịu tác động bởi quan tâm về đạo đức, ảnh hưởng xã hội, tiêu dùng để tạo vị thế và ý thức về giá, trong khi ý định sử dụng hàng giả nhãn hiệu của người tiêu dùng chịu tác động bởi thái độ, quan tâm về đạo đức và ảnh hưởng xã hội.
NĂNG LỰC THÍCH ỨNG CỦA NGUỒN NHÂN LỰC TRONG BỐI CẢNH HỘI NHẬP KINH TẾ TẠ I VIỆT NAM
Nghiên cứu này được thực hiện nhằm phân tích thực trạng nguồn nhân lực tại Việt Nam thông qua quy mô lao động, tỷ lệ lao động thất nghiệp, tỷ lệ lao động thiếu việc làm. Từ đó chỉ ra những kết quả đạt được, những hạn chế về nguồn nhân lực của Việt Nam trong giai đoạn hiện nay. Thêm vào đó, nghiên cứu cũng tính toán năng lực thích ứng của lao động thông qua sử dụng dữ liệu từ khảo sát 165 lao động, những tính toán này nhằm xem xét đánh giá của chính lao động về khả năng thích ứng của họ trong bối cảnh hội nhập kinh tế của Việt Nam hiện nay. Kết quả nghiên cứu của tác giả cho thấy, năng lực thích ứng của lao động ở mức khá với hệ số được tính toán đạt khoảng 0,636. Trên cơ sở đó, nghiên cứu đề xuất một số kiến nghị góp phần phát triển hơn nữa nguồn nhân lực của Việt Nam nhằm đáp ứng tốt các yêu cầu của xã hội trong bối cảnh hội nhập.
FACTORS AFFECTING PEOPLE'S DECISION TO USE ELECTRONIC PAYMENT SERVICES HO CHI MINH CITY
The Industrial Revolution 4.0 is radically changing every aspect of every economy including Vietnam. In this revolution, the explosion of information technology has paved the way for many development industries, of which e-commerce is one of the industries with the strongest potential for development. However, the actual implementation of electronic payment services still faces many difficulties when the number of customers Chuyên san Phát triển Khoa học và Công nghệ số 7(2), 2021 49 accepting to use this service is small. This paper examines the factors influencing people's decision to use electronic payment services in Ho Chi Minh City. Research results from 1231 surveys with people in 7 districts of Ho Chi Minh City using the logit regression model showed that there are 9 factors affecting the decision to use electronic payment services. According to the level of influence decreasing: (1) Subjective standard; (2) Safety and confidentiality; (3) Advertising activities of enterprises; (4) Easy to use; (5) Trust; (6) Education level; (7) Recognize the usefulness; (8) Income; (9) Age. Based on the results, the authors have proposed a number of solutions to improve the ability of people to receive and expand electronic payment services in Ho Chi Minh City, including: (1) Raise subjective standards to increase the decision to use electronic payment services; (2) Improve information security and reduce risks for consumers; (3) Enhance promotion, enhance the image of the business; (4) Simplify the electronic payment process; (5) Improving consumer confidence; (6) Flexible combination of solutions to suit each customer base on educational level; (7) Enhancing the value of benefits for consumers; (8) Exploiting different segments of people's income; (9) Focus on developing electronic payment services thanks to the young population structure of Ho Chi Minh City. Key words: Electronic payment services; Decision to use electronic payment services
FACTORS AFFECTING EMPLOYE'S CONNECTION IN LOGISTICS ENTERPRISES IN BINH DUONG PROVINCE
Presenting research results include: Statistics describing 05 demographic factors of employees: Gender, Age, Working time, Income, Education level; Testing the reliability of the scale through Cronbach's Alpha coefficients shows that the factors of the research model are highly reliable; Exploratory factor analysis - EFA shows that 06 groups of outcome factors are corresponding to the research model proposed by the author; Linear correlation analysis, Regression correlation analysis shows that 06 independent variables affect employee's engagement, including: (i) Leadership style, (ii) Colleague relations, (iii Income and welfare, (iv) The nature of work, (v) Work environment, (vi) Promotion; and demographics. Research "Factors affecting the engagement of workers in logistics enterprises in Binh Duong province". Based on the research results in chapter 4, chapter 5 presents the conclusions and main governance implications to maintain and improve the employee's cohesion level according to the degree of influence from high to low : Leadership style, Colleagues, Income and welfare, Work nature, Work environment, Promotion. Keywords: Labor, engagement, logistics, employment and environment.
FACTORS AFFECTING STUDENTS’ USING BEHAVIOUR OF MOBILE PAYMENT SERVICES IN HO CHI MINH CITY
In the trend of global integration and the Fourth Industrial Revolution, the application of technology in various fields is encouraged by the State, and the financial sector is no exception, the term ‘Fintech’ (financial technology) is widely known than ever. Particularly, non-cash payment is outstanding with such benefits as ensuring safety and transparency in money transfer and amplifying the money supply in the economy. Among non-cash payment methods, mobile payment is growing strongly and receiving attention from investors, which can be seen in two noticeable deals: 300 million USD invested in VNPay and 100 million USD in Momo. It is obvious that mobile payments have been and will thrive in the near future. The proposed research model is built based on the theoretical model UTAUT and TPR. The research has been conducted with students from universities and colleges in Ho Chi Minh City and done through two phases: preliminary research (qualitative method) and official research (quantitative method). As analyzing and testing with the linear regression method, results showed that there are 05 factors affecting the behavior of using mobile payments which are, in descending of impact level, Perceived Ease of Use, Perceived Risk, Social Influence, Promotions, and Perceived Usefulness. Among those factors, Perceived Risk has a negative impact on research behavior. From the results obtained, suggestions and solutions are given to mobile payment developers to attract more users, enhance customer satisfaction and develop new paying habits for students in Ho Chi Minh City in particular and other potential consumers in general. Keywords: student, Ho Chi Minh city, mobile payment, non cash payment.
FACTORS AFFECTING THE STUDYING MOTIVATION OF UNIVERSAL STUDENTS: A STUDY AT VAN LANG UNIVERSITY
Improving students' learning motivation is an issue that many universities are interested in today. Many studies have been carried out to determine the factors that affect students' learning motivation. However, learning motivation is a complex concept that comes from each student and depends on many different factors. Therefore, learning dynamics are always changing, and the influencing factors are also changing depending on other research cases. This study was conducted to determine the factors affecting the learning motivation of students at Van Lang University. By methods of evaluating the reliability of Cronbach's Alpha scale, exploratory factor analysis (EFA), multiple regression analysis with a sample of 396 Van Lang students, the research results showed that the quality of lecturers, Academic events, training management, student affairs, movement activities and training programs all had a positive impact on the learning motivation of students at Van Lang University. Therefore, to improve students' learning motivation, Van Lang University needs to improve student satisfaction with these factors. Keywords: Learning motivation, exploratory factor analysis, Van Lang University.
FACTORS AFFECTING THE LEARNING OUTCOMES OF STUDENTS AT VAN LANG UNIVERSITY
Student’s learning outcomes are a matter of great concern to many universities today. This study was conducted to determine the factors affecting the learning outcomes of students at Van Lang University. By methods to assess the reliability of Cronbach's Alpha scale, exploratory factor analysis (EFA), multiple regression analysis with a sample of 480 Van Lang students, the research results show that the interaction with lecturers, class participation, self-study ability all have a positive impact on the learning outcomes of students at Van Lang University. Therefore, Van Lang University needs to focus on improving student satisfaction on these factors to improve student learning outcomes. Keywords: Learning outcomes, exploratory factor analysis, Van Lang University