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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.
Thi Phuong Diu TRAN(Thi Phuong Diu TRAN ),Thi Van Khanh NGUYEN(Thi Van Khanh NGUYEN ),Thanh Quang DO3(Thanh Quang DO3 ),Cong Nghiep NGUYEN(Cong Nghiep NGUYEN ),Thu Thuy LUONG(Thu Thuy LUONG ) 한국유통과학회 2022 유통과학연구 Vol.20 No.10
Purpose: This article focuses on exploring the associations between job satisfaction, organizational commitment, and turnover intention. Specifically, this study estimates the impacts of Vietnamese employees’ job satisfaction on their organizational commitment and turnover intention in FDI enterprises. Research design, data and methodology: The measures are adapted from previous studies to develop a questionnaire with a seven-point Likert scale. The dataset is directly collected from 227 respondents who are employees at FDI enterprises situated in the North of Vietnam. The dataset is analyzed by quantitative approaches using SPSS 24.0 and AMOS 24.0. Results: The results show that while turnover intention is positively correlated with monthly income, it is negatively correlated with job satisfaction and organizational commitment. Also, organizational commitment is positively associated with job satisfaction among employees at FDI enterprises in Vietnam. Conclusions: The findings of this study will serve as useful references for administrators of FDI enterprises and policymakers to promote employees’ job satisfaction and retain skilled employees.
Cong Minh Tran(뜨랑민꽁),Sojeong Yoon(윤소정),Jongjin Park(박종진),Ki-Tae Kim(김기태) 환경독성보건학회 2021 한국독성학회 심포지움 및 학술발표회 Vol.2021 No.5
Parabens are a family of parahydroxybenzoates that have been widely used as additional preservatives in cosmetics and household care products. Due to non-covalent characteristics, parabens are easily released into the environment during the scouring process. To understand the neuroendocrine toxicity of common parabens (i.e., ethyl, methyl, and propylparaben), we assessed the behavior locomotor and conducted transcriptome sequencing (RNA-seq) analysis using zebrafish embryos after exposure to various sublethal concentrations at 0, BMD<sub>5</sub>/50, BMD<sub>5</sub>/10, and BMD<sub>5</sub> of each paraben from 2 to 120 hours post-fertilization (hpf). Zebrafish larvae showed hyperactivity and ambiguous behavioral disorders after exposure to ethyl- and methylparaben, respectively. In contrast, exposure to propylparaben did not induce any significant difference in zebrafish behavioral locomotion. Transcriptome results showed that the expression of 265, 69, and 142 transcription factors were significant affected in zebrafish larvae after exposure to ethyl, methyl, and propylparaben, respectively. Using Kyoto encyclopedia of genes and genomes (KEGG) pathways we found that endocrine-related pathways of pyrimidine, purine metabolism, and ECM-receptor interaction were significantly affected by ethyl- and methylparaben exposure at BMD<sub>5</sub>. Our study provides the considerable insight into the neuroendocrine toxicity induced by paraben on the living organism at sublethal concentration.
Rate of Phonon Excitation and Conditions for Phonon Generation in Rectangular Quantum Wires
Tran Cong PHONG,Dinh Quoc VUONG,Le DINH,Nguyen Quang BAU 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
Phonon generation via the Cerenkov eect in rectangular quantum wires is theoretically studied based on the quantum kinetic equation for the phonon population operator. Analytical expressions for the rate of change of the phonon population and conditions for phonon generation are obtained. Numerical results for the speci.c rectangular quantum wires show that the amplitude of the laser .eld must satisfy additional conditions that are dierent in comparison with those of the other works. The dierences between the generation of acoustic phonon and optical phonon are considered.
Tran Huu Cong,Young Joong Kim,Myo-Taeg Lim 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
This paper describes an improving method for solving localization problems with a highly accurate model of a mobile robot either in an uncertainly large-scale environment. Firstly, we motivate our approach by analyzing intensively the dead-reckoning model for the tricycle robot type. Secondly, we propose the localization algorithm based on a Hybrid Extended Kalman Filter using artificial beacons. In this paper, 3600 sensor scan is used for each observation and the odometry data is updated to estimate the robot position. Then a comparison between the real and the estimated location of beacons and analyzing of the filter’ performance are taken. The simulation results show that the proposed algorithm can lead the robot to robustly navigate in uncertain environments.