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Dong Van VU1,Tai Van PHAM2,Ghi Nha TRAN3,Anh Phuong Thi NGUYEN4,Cong Van NGUYEN5 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.6
This study seeks to examine the relationship between business resources (through VRIN: Valuable - valuable, Rare - scarce; Inimitable - difficult to adapt, Irreplaceable - hard to replace), dynamic capability, external cooperation, and efficiency of startups operating in the seafood export sector. Research data was collected randomly and conveniently from 250 enterprises in Ba Ria-Vung Tau province, Vietnam, from October 2020 to December 2020. After excluding those ineligible, the remaining 204 enterprises meet the research conditions. With the support of SPSS-AMOS 22 dedicated software, using the 5-step Likert scale and Structural Equation Modeling (SEM), the study conducted analysis steps such as verifying convergence, discriminant value, unidirectional and scale reliability when giving the components correlated freely in the critical model by Confirmatory Factor Analysis (CFA) analysis. Results of the study have shown that the enterprise resource factor - VRIN has a positive impact on dynamic capability, and outside cooperation. However, in contrast to previous studies, we found that the relationship between enterprise resources - VRIN and performance as well as the relationship between dynamics capacity and performance is not clear. This shows that seafood exporters need to promote, exploit and effectively use this precious resource to improve business efficiency.
Laboratory Evaluation of Asphalt Mixtures Using Nano SIO2 to Improve Rutting Resistance
Van Bach Le,Van Phuc Le,Dong Nguyen 한국도로학회 2018 한국도로학회 학술대회 발표논문 초록집 Vol.2018 No.05
Rice husk, in large quantities, is released to the environment due to rice production in Vietnam. If this material can be utilized, it can solve not only the economic issues but also the environmental problems and sustainable development of the country. Laboratory evaluation of asphalt mixture using Nano silica made from rice husk to improve rutting resistance of asphalt mixtures was presented in this study. A 60/70 bitumen was used as control asphalt binder. The ratio of Nano SIO2 used in this study was 0.3%, 0,6%, 0,9%, 1,2%, and 1,5% by weight of powder. A dense gradation with nominal maximum aggregate size of 12.5mm was used for the asphalt mixtures. Marshall stability (MS) test and wheel tracking (WT) test were conducted to evaluate the rutting resistance of asphalt mixtures. It was found that the asphalt mixtures using 0.5%, 1.0%, and 1.5% Nano SIO2 have the rut depths of 5.35mm, 5.39mm, and 5.45mm, respectively, which is 30%, 31% and 29% lower than the control asphalt mixtures at 15,000 load cycles. Moreover, the static modulus of asphalt mixtures using 0.9% Nano SIO2 at 60oC is higher than the control mixtures. Based on the results of this study, it can be concluded that the addition of Nano SIO2 into asphalt mixtures can enhance the rutting performance of asphalt concrete under high temperatures significantly. It is noted that these conclusions were based on only on a limited number of samples and conditions. Further studies must be conducted to investigate the effect of Nano SIO2 on fatigue cracking and moisture damage of asphalt pavement in the field.
Chemical constituents and antioxidant activity of Ficus callosa.
Van Kiem, Phan,Cuong, Nguyen Xuan,Nhiem, Nguyen Xuan,Hang, Dan Thi Thuy,Nam, Nguyen Hoai,Ban, Ninh Khac,Minh, Chau Van,Bing, Zhou,Jang, Hae Dong,Kim, Young Ho Natural Product Communications 2011 Natural product communications Vol.6 No.2
<P>One new megastigmane glycoside, ficalloside (1), and eleven known compounds, were isolated from methanol extract of Ficus callosa leaves by repeated column chromatography. Their structures were established on the basis of spectral and chemical evidence. The antioxidant activities of these compounds were measured using the oxygen radical absorbance capacity (ORAC) assay. Compound 8 exhibited potent antioxidant activity of 10.6 microM trolox equivalents at the concentration of 2 microM. At this concentration, compounds 4-7 and 9-12 showed significant antioxidant activity with ranging of 2.1-6.1 microM trolox equivalents.</P>
Epidemiology and Prevention of Prostate Cancer in Vietnam
Dong, Hoang Van,Lee, Andy H.,Nga, Nguyen Hoai,Quang, Nguyen,Chuyen, Vu Le,Binns, Colin W. Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.22
Prostate cancer is the second most common cancer in men worldwide and a leading cause of mortality. Incidences continues to rise and vary substantially between populations. Although the prevalence of prostate cancer is relatively low in Vietnam, some hospital-based reports have shown an upward trend in recent years. While certain non-modifiable factors such as age, race and genetics are known to be mainly responsible, the literature has also suggested that environmental exposures can delay the onset of this disease. The present study provides a review of the epidemiology of prostate cancer in Vietnam by systematically searching several electronic databases. The results confirm an increasing trend of prostate cancer over the past decade, with age-standardised rate more than doubled from 2.2 per 100,000 men in 2000 to 4.7 per 100,000 men in 2010. However, no study has been found on modifiable risk factors, with the exception of one in vitro experiment that showed the inhibitory effect of garlic on the growth of prostate cancer cells. The lack of epidemiological information poses a difficulty to develop public health interventions to prevent this emerging malignant disease in Vietnam.
Van Huong Dong,Van Tai Pham 국제이네비해양경제학회 2019 International Journal of e-Navigation and Maritime Vol.11 No.1
In the trend of globalization, global citizenship, social responsibility,and sustainability are seen as the benchmark for assessing the sociology of schools. However, there are few formal definitions or concepts of global citizenship and convincing evidence of how global citizens engage in cultural activities at universities. Therefore, it is essential to research extensively and accurately to create concepts about global citizens in higher education. International higher education, social sciences,and business materials are considered to have integrated a deep understanding of global citizenship in the context of universities in general and business schools in particular. The recognition of the concept of global citizens through the moral and transformative lens is considered a practical solution when approaching this new and full of problems. This paper describes the learning of global citizens through social imagination, relationships,and reflexes. These qualities will help students develop complex and ambiguous global business thinking. The materials and knowledge considered in this paper are the basis for establishing ethical reasoning, sensitivity and value-based teaching in universities. These aspects will create new ways to integrate the concept of global citizens into training programs at business schools. Global citizen learning will create the necessary links of social responsibility with sustainable development and ethical principles when implementing the curriculum at business schools. Besides, the paper also outlines how to learn from global citizens and apply that learning method to teaching practice.