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Nguyen, Hoang Lam,Jang, Min-Seok,Cho, Hyeon-Seo The Korean Society of Marine Environment and safet 2014 해양환경안전학회지 Vol.20 No.3
Seasonal characteristics of water and sediment qualities and potential effects of the freshwater discharge from a small tide embankment interior in a coastal area in Goheung county were investigated from May to September in 2012. Chemical oxygen demand values (COD) were mostly higher than 2 mg/L in summer ebb tide, which exceed the standard value of water quality criteria II of acceptable level for aquaculture activities. Nitrogen and phosphorus were found as the limiting nutrients for algae growth in summer and fall and in spring, respectively. Nitrogen was the limiting nutrient for diatom growth in the whole studied period. The sudden high values of COD, ammonia, dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP) were found in water sample collected from station 5 which located in front of the tide embankment sluice gate during spring ebb tide. The freshwater discharge form the tide embankment interior maybe affected the survey areas during a short time interval. Mean values of eutrophication index of the surveyed coastal region in spring, summer and fall were all bigger than 1. Water quality was mostly considered at level II which acceptable for aquaculture activities. Sediment quality in this study was generally in the range of standard for fisheries environment.
Nguyen, Tuan Lam,Pham, Thi Quynh Nga,Hoang, Van Minh,Kim, Bao Giang,Phan, Thi Hai,Doan, Thu Huyen,Nguyen, Thuy Linh,Duong, Khanh Van,Luong, Ngoc Khue Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.no.sup1
Second-hand tobacco smoke (SHS) exposure at home, especially among children, is a serious issue in Viet Nam. During the past decade, much effort has been taken for tobacco control in the country, including various prgorammes aiming to reduce SHS exposure among adults and children. This article analysed trends and factors associated with SHS exposure at home among school children aged 13-15 in Viet Nam, using the Global Youth Tobacco Surveys conducted in 2007 and 2014. Descriptive and inferential statistical methods with logistic regression were applied. Overall, there was a significant reduction in the level of exposure, from 58.5% (95%CI: 57.6-59.3) in 2007 to 47.1% (95%CI: 45.4-48.8) in 2014. Of the associated factors, having one or both parents smoking was significantly associated with the highest odds of SHS exposure at home (OR=5.0; 95%CI: 4.2-6.1). Conversely, having a mother with a college or higher education level was found to be a protective factor (OR=0.5; 95%CI: 0.3-0.8).
The Moderating Role of CSR Associations on the Link between Brand Awareness and Purchase Intention
HOANG, Xuan Lam,NGUYEN, Thi Kim Chi,LY, Hoang Mai,LUONG, Thu Thuy,NGUYEN, Thi Thanh Quy Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.6
This study uses the moderating model to explore the relationships between Corporate Social Responsibility (CSR) associations, brand awareness and consumer purchase intention. Besides investigating the direct effects of CSR associations on brand awareness and consumer purchase intention, this study also focuses on discovering the moderating role of CSR associations on the relationship between brand awareness and consumer purchase intention among Vietnamese students. Adapting scales from previous research, the authors distribute questionnaires to consumers across the country. Then, the validity and reliability are tested via Cronbach's alpha, Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA). Moreover, by employing a meta-analytical path analysis with a sample of 686 consumers, the authors show that CSR associations play an important role in shaping purchase intention among Vietnamese consumers regarding the consumption of organic milk products. Also, CSR associations have a strong effect on brand awareness. However, our study shows that purchase intention is not directly affected by brand awareness. In other words, brand awareness does not mediate the relationship between CSR associations and purchase intention. Interestingly, authors show that CSR associations moderate the link between brand awareness and consumer purchase intention. Based on the research, some recommendations are made to companies that produce organic milk products.
Hoang, Van Minh,Kim, Bao Giang,Phan, Thi Hai,Trinh, Dinh Hoang,Doan, Thu Huyen,Luong, Ngoc Khue,Nguyen, Thuy Linh,Nguyen, Tuan Lam,Pham, Thi Quynh Nga Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.no.sup1
Scientific evidence on all aspects of smoking amongst youth is very important for designing appropriate interventions to reduce smoking among this vulnerable population. This paper describes current access to anti-smoking information among school children aged 13 to 15 years in Vietnam in 2014 and examines its potential impact on preventing smoking initiation. The data used in this paper were obtained from the 2014 Global Youth Tobacco Survey (GYTS) in Vietnam. Students were asked questions about their level of awareness of anti-smoking information from various sources in the past 30 days and about lessons in school regarding the dangers of tobacco use during the last 12 months. Those who have never smoked were asked "whether or not they thought about avoiding cigarettes because of health warnings on cigarette packages" and answers were analyzed in combination with data on access to anti-smoking information from other sources. The prevalence of exposure to antismoking campaigns was high among school children in Viet Nam: 55.3% of current smokers reported thoughts of smoking cessation because of health warnings on cigarette packages; 60.5% of never smokers avoided initiating smoking because of the same health warnings. The potential impact of graphic health warnings to prevent school-aged children from smoking initiation would be stronger if there was concurrent access to anti-smoking programs on the dangers of tobacco use in schools. However, school education for tobacco prevention and control has not been as strong as expected. A more comprehensive school curriculum on tobacco prevention and control is recommended to reinforce antismoking messages among school children.
Nguyen, Thanh Huong,Nguyen, Trung Kien,Kim, Bao Giang,Hoang, Van Minh,Phan, Thi Hai,Doan, Thu Huyen,Luong, Ngoc Khue,Nguyen, Thuy Linh,Nguyen, Tuan Lam,Pham, Thi Quynh Nga Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.no.sup1
Studies have shown that smoking is a learnt behavior, often initiated during adolescence. This paper aims to describe tobacco-related knowledge, attitude and associations among school adolescents aged 13-15 with exposure to anti-smoking information. Using data from the Global Youth Tobacco Survey (GYTS) in Viet Nam, 2014, knowledge was measured through 4 questions about tobacco use, and attitude was assessed through 3 questions on personal, social and environmental aspects. Students giving most anti-tobacco responses to all questions were considered as having correct knowledge or appropriate attitude or both. Access to anti-smoking information was determined by exposure to any media messages on tobacco control during the past 30 days and teaching in school about the danger of tobacco use during the past 12 months. A substantial percentage of students thought that being near others who smoke might be harmful to them and smoking is harmful to health (89.4% and 89.6% respectively). However, only 46.4% reported that it is definitely difficult to quit smoking and 66.9% thought that smoking for only 1 or 2 years, once stopped, is harmful to health. Slightly more than half of the respondents reported appropriate attitude that young smokers have fewer friends than others and smoking makes them less attractive and less comfortable at social events. Noticing anti-smoking messages in the media together with having lessons in school about the dangers of tobacco substantially increased the likelihood of having correct knowledge, appropriate attitude and both. Despite relatively high awareness about smoking harms, effective educational communication is still highly needed to improve the level of comprehensive knowledge and an appropriate attitude regarding tobacco use.
Powder X-ray diffraction analysis of Cu/Cu2O nanocomposites synthesized bycolloidal solution method
Nguyen Hoang Lam,Nam Le,김의선,Mohaseen Salim Tamboli,아시야모하신탐볼리,Nguyen Tam Nguyen Truong,정재학 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.9
Cu/Cu2O powder nanocomposites (PNCs) were successfully synthesized by colloidal solution method. Toinvestigate the influence of oxidant agent concentration on the crystallite size and lattice constant of the PNCs, X-raydiffraction (XRD) was utilized to collect the database for crystal growth analysis. Due to the imperfect crystal growth,the Nelson-Riley function and the Williamson-Hall method were used to confirm the precise values of the PNCs. TheRietveld refinement method based on the XRD pattern was used. The XRD results show that the diffraction peakswere mainly assigned to the cubic structure, in good agreement with the ICDD standards. Furthermore, the change inoxidant agent concentration led to a very small change of microstrain in the peaks of Cu/Cu2O PNCs. Using thesemethods can aid in the precise study of the crystalline structure of the material, which can then be calculated to adjustthe influencing conditions during the synthesis of the material.