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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.
Trinh Thi Thanh THUY,Nguyen Thi BINH,Trinh Thi Thu HUONG,Nguyen Thu THUY,Dang Thanh PHUONG,Tran Thi Bao KHANH,Nguyen Thi YEN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.11
The development of the ethnic minorities and mountainous areas (EMMA) is currently receiving the attention of countries around the world. This is demonstrated through a large number of studies, in many respects, in many different countries. The objective of the study is to find out the current situation of the commodity market in the ethnic minorities and mountainous areas (EMMA) of Vietnam. In particular, the authors will study whether there is a link between the ability to access governmental policies and the characteristics of this commodity market. To achieve the goal, the authors employed the secondary data collection method to gather the relevant information on government policies for EMMA and conducted an interview of seventy (70) enterprises in the Northern midlands and mountainous regions and the Central Coast to clarify the characteristics of commodity market. By Levene’s test, the results showed that the accessibility to governmental policies has a certain influence on the development of the commodity market patterns in the EMMA in terms of diversification of distribution forms and sales method of the business. These findings brought some basic solutions to further enhance the role of the government in developing commodity markets in the EMMA of Vietnam.
Tran Thi Thu Thuy,Nguyen Manh Cuong,Tran Quoc Toan,Ngo Ngoc Thang,Bui Huu Tai,Nguyen Xuan Nhiem,Hye-Jin Hong,Sohyun Kim,Stephanie Legoupy,고영상,Young Ho Kim 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.7
A series of N-substituted-1,2,3-triazole murrayafolineAderivativeswere successfully synthesized usingclick azide–alkyne Huisgen cycloaddition reaction between1-methoxy-3-methyl-9-(3-azido)-propyl-9H-carbazole andsubstituted alkynes. Their chemical structures were confirmedby 1H, 13C NMR and HR-ESI–MS spectral data. Inaddition, the interested effects on LPS-stimulated productionof pro-inflammatory cytokines in bone marrow-deriveddendritic cells of synthetic murrayafoline A derivatives werealso investigated. Our results indicated that murrayafoline Aderivatives containing 1,2,3-triazole nucleus potentiallypossessed anti-inflammatory action through inhibiting productionof IL-6, IL-12 p40 and TNF-a.
Artocarpus nigrifolius: Cytotoxic and Antibacterial Constituents
Tran Minh Hoi,김영호,Ha Van Anh,Nguyen Thi Thanh Huong,Nguyen Van Tuyen,Le Thi Tu Anh,Nguyen Thanh Tra,Ba Thi Cham,Nguyen Thi Thu Ha,Pham Thuy Linh,Doan Duy Tien,Phan Van Kiem,Ninh Khac Ban,Lidziya Kukha 한국응용생명화학회 2013 Applied Biological Chemistry (Appl Biol Chem) Vol.56 No.6
Six known compounds including α-amyrin 3-acetate (1), β-sitosterol (2), betulinic acid (3), friedelan-3-one (4),artochamin B (5), and 2-C-methyl-D-erythritol 4-O-α-D-glucopyranoside (6) were isolated from the stem barks and leaves of Artocarpus nigrifolius (Moraceae) for the first time. Their structures were identified by spectroscopic methods as well as comparison with literatures. Cytotoxicity and antibacterial activity of 1-6 were evaluated. Results showed that artochamin B (5)possessed the highest cytotoxicity towards MCF7, Lu, HepG2,and KB cell lines with IC50 values of 4.59, 20.00, 3.60, and 1.18μg/mL, respectively. It also inhibited the growth of Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus), whereas inactive on the growth of both Gram-negative bacteria and yeast.
Thuy Thi Thu Nguyen,Huu The Nguyen,Hai Thi Trinh,Trang Thi Thu Bui,Anh-Tuan Le,Tran Quang Huy 한국고분자학회 2022 Macromolecular Research Vol.30 No.2
In this study, the Pb2+ adsorption capacity of electrospun polyvinylidene fluoride/graphene oxide (PVDF/GO) membranes with different morphological characteristics and compositions were comprehensively compared. Firstly, the chemical characteristics, morphological characteristics and hydrophobicity relating to the adsorption capacity of electrospun PVDF/GO membranes were investigated through Fourier transform infrared spectroscopy, Raman spectroscopy, energy-dispersive X-ray spectroscopy, scanning electron microscopy and water contact angle measurement. Adsorption analysis showed that the adsorption performance of electrospun PVDF/ GO increased as GO contents increased. Variations in the average diameter of electrospun PVDF/GO fibres in the range of several micrometres did not cause a distinguishable change in their adsorption capacity. Electrospun PVDF/GO membranes without a porous structure inhibited a low adsorption capacity although they contained a high composition of GO. The modification of electrospun PVDF/GO membranes by adding PEG increased the distribution of GO on the surface of fibres, resulting in a more hydrophilic fibre surface and a notable increase in Pb2+ adsorption. The adsorption behaviour of Pb2+ onto electrospun PVDF/GO/PEG membranes was found to be dependent on contact time and pH. Reusability analysis indicated that the electrospun PVDF/GO/PEG membrane maintained a Pb2+ removal rate of over 80% after six adsorption-desorption cycles. Therefore, electrospun PVDF/GO/PEG membranes might be a promising adsorption material used in filtration systems for heavy metal removal.
Synthesis of Novel Triazolo Cyclobutane Nucleoside Analogs
Thi Thu Thuy Tran,Ngoc Thang Ngo,Thi Ha Dinh,Giang Vo‐Thanh,Stéphanie Legoupy 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.5
Synthesis of triazolo-cyclobutane nucleosides analogs is reported. These molecules have been obtained by a short and efficient sequence involving a click azide-alkyne cycloaddition following by cis-hydroxylation in the key step.
Trung Tran,Loc Thi My Nguyen,Thanh Thi Nghiem,Hien Thi Thu Le,Cuong Huu Nguyen,Thuy Phuong La,Trung Tien Nguyen,Hang Thi-Thu Nguyen 한국과학학술지편집인협의회 2019 Science Editing Vol.6 No.2
This study aimed at elucidating the present situation of scholarly journals published in Vietnam according to the minimum criteria to be indexed in the ASEAN Citation Index (ACI) and Scopus, with the goal of suggesting development strategies for scholarly journals in Vietnam. From the 387 journals accredited by the Vietnamese State Council for Professorship, 13 education journals were arbitrarily selected, and their compliance with the five minimum criteria for the ACI (peer review, timeliness, abstracts in English, references in Roman script, and a website in English) and the six minimum criteria for Scopus (peer review, timeline, abstracts in English, references in Roman characters, Electronic International Standard Serial Number [ISSN], and publication ethics) were assessed. Two of the 13 journals were eligible to be indexed in the ACI, while none fulfilled the minimum criteria to be indexed in Scopus. An urgent task for the editors of those journals is to establish an informative journal homepage in English that provides basic information on the journal. Then, an Electronic ISSN can be obtained from the ISSN International Center. Furthermore, the following steps are suggested for journal promotion: establishment of appropriate editorial policies and publication ethics procedures, improvement of research integrity, enhancement of the journals’ reputation in the international scientific community, and improvement of the online publishing system by adopting a journal manuscript management system. To achieve those goals, financial support from the Vietnamese government will be invaluable.
Artocarpus nigrifolius: Cytotoxic and Antibacterial Constituents
Hoi, Tran Minh,Anh, Ha Van,Huong, Nguyen Thi Thanh,Tuyen, Nguyen Van,Anh, Le Thi Tu,Tra, Nguyen Thanh,Cham, Ba Thi,Ha, Nguyen Thi Thu,Linh, Pham Thuy,Tien, Doan Duy,Kiem, Phan Van,Ban, Ninh Khac,Kukha The Korean Society for Applied Biological Chemistr 2013 Applied Biological Chemistry (Appl Biol Chem) Vol.56 No.6
Six known compounds including ${\alpha}$-amyrin 3-acetate (1), ${\beta}$-sitosterol (2), betulinic acid (3), friedelan-3-one (4), artochamin B (5), and 2-C-methyl-D-erythritol 4-O-${\alpha}$-D-glucopyranoside (6) were isolated from the stem barks and leaves of Artocarpus nigrifolius (Moraceae) for the first time. Their structures were identified by spectroscopic methods as well as comparison with literatures. Cytotoxicity and antibacterial activity of 1-6 were evaluated. Results showed that artochamin B (5) possessed the highest cytotoxicity towards MCF7, Lu, HepG2, and KB cell lines with $IC_{50}$ values of 4.59, 20.00, 3.60, and $1.18{\mu}g/mL$, respectively. It also inhibited the growth of Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus), whereas inactive on the growth of both Gram-negative bacteria and yeast.
Chemical constituents of the Annona glabra fruit and their cytotoxic activity.
Hien, Nguyen Thi Thu,Nhiem, Nguyen Xuan,Yen, Duong Thi Hai,Hang, Dan Thi Thuy,Tai, Bui Huu,Quang, Tran Hong,Tuan Anh, Hoang Le,Kiem, Phan Van,Minh, Chau Van,Kim, Eun-Ji,Kim, Seung Hyun,Kang, Hee Kyoun Swets Zeitlinger 2015 PHARMACEUTICAL BIOLOGY Vol.53 No.11
<P>Traditional Chinese medicines have attracted increasing interest as potential sources of novel drugs with a wide range of biological and pharmacological activities. Annona glabra Linn (Annonaceae) is used in traditional medicine as an anticancer drug. Phytochemical investigation of this plant led to the isolation of acetogenins, ent-kauranes, peptides, and alkaloids. In addition, compounds exhibited anticancer, anti-HIV-reserve, and antimalaria.</P>
( Hai The Pham ),( Hien Thi Tran ),( Linh Thuy Vu ),( Hien The Dang ),( Thuy Thu Thi Nguyen ),( Thu Ha Thi Dang ),( Mai Thanh Thi Nguyen ),( Huy Quang Nguyen ),( Byung Hong Kim ) 한국미생물·생명공학회 2019 Journal of microbiology and biotechnology Vol.29 No.7
In this study, we investigated the potential of using sediment bioelectrochemical systems (SBESs) for in situ treatment of the water and sediment in brackish aquaculture ponds polluted with uneaten feed. An SBES integrated into a laboratory-scale tank simulating a brackish aquaculture pond was established. This test tank and the control (not containing the SBES) were fed with shrimp feed in a scheme that mimics a situation where 50% of feed is uneaten. After the SBES was inoculated with microbial sources from actual shrimp pond sediments, electricity generation was well observed from the first experimental week, indicating successful enrichment of electrochemically active bacteria in the test tank sediment. The electricity generation became steady after 3 weeks of operation, with an average current density of 2.3 mA/㎡ anode surface and an average power density of 0.05 mW/㎡ anode surface. The SBES removed 20-30% more COD of the tank water, compared to the control. After 1 year, the SBES also reduced the amount of sediment in the tank by 40% and thus could remove approximately 40% more COD and approximately 52% more nitrogen from the sediment, compared to the control. Insignificant amounts of nitrite and nitrate were detected, suggesting complete removal of nitrogen by the system. PCR-DGGE-based analyses revealed the dominant presence of Methylophilus rhizosphaerae, Desulfatitalea tepidiphila and Thiothrix eikelboomii, which have not been found in bioelectrochemical systems before, in the bacterial community in the sediment of the SBES-containing tank. The results of this research demonstrate the potential application of SBESs in helping to reduce water pollution threats, fish and shrimp disease risks, and thus farmers’ losses.