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  • Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)  (7)
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  • Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)  (7)
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  • 1
    Online Resource
    Online Resource
    GENETIC POLYMORPHISM OF 23 Y-CHROMOSOME SHORT TANDEM REPEAT LOCI IN THE KINH POPULATION OF VIETNAM
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2018
    In:  Vietnam Journal of Biotechnology Vol. 16, No. 2 ( 2018-12-17), p. 223-229
    Details
    In: Vietnam Journal of Biotechnology, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 16, No. 2 ( 2018-12-17), p. 223-229
    Abstract: Y-chromosome microsatellites or short tandem repeats (STRs) have been proved to be ideal markers to delineate the differences between individuals in human population. Nowadays, Y-STR testing using the PowerPlex® Y23 amplification kit is considered as an extremely sensitive analysis method and has the potential to be used to perform forensic caseworks, and to explore the complexity in population substructures. However, little is known about the forensic Y-chromosome databases in the Vietnam population. In this study, 23 Y-STR loci (DYS576, DYS389I, DYS389 II, DYS448, DYS19, DYS391, DYS481, DYS549, DYS533, DYS438, DYS437, DYS570, DYS635, DYS390, DYS439, DYS392, DYS393, DYS458 DYS456, DYS643, YGATAH4, and DYS385a/b) were investigated in 120 non-related males of the Kinh population in Northern Vietnam using PowerPlex® Y23 system kit (Promega). Our results showed that allele frequencies of 23 loci in the sample population, with the calculated average gene diversity (GD) for each locus, ranged from 0.24 (DYS438) to 0.92 (DYS385a/b). In addition, a total of 120 different haplotypes were found, all of them were unique. Therefore, we found that the haplotype diversity was 1 with a discrimination capacity of 100%, which serves as an essential prerequisite for using Y-chromosomal STR with PowerPlex® Y23 System kit in forensic application in Vietnam. We also compared genetic distances between Kinh population and 10 other neighboring populations from Y-chromosome haplotype reference database (YHRD). The Kinh population is significantly different from other populations. In conclusion, it was indicated that the 23 Y-STR loci were highly genetically polymorphic in the Kinh population in Vietnam and might be of great value in forensic application.
    Type of Medium: Online Resource
    ISSN: 1811-4989 , 1811-4989
    URL: Article
    DOI: 10.15625/1811-4989/16/2/13431
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2018
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Efficacy of biosynthesizing folate, riboflavin and typical probiotic traits reveal the potential use of \(\textit{Lactobacillus plantarum}\) LCN13 as a feed additive for swine farming
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2022
    In:  Academia Journal of Biology Vol. 44, No. 1 ( 2022-03-30), p. 73-82
    Details
    In: Academia Journal of Biology, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 44, No. 1 ( 2022-03-30), p. 73-82
    Abstract: Lactic acid bacteria have been advocated as probiotics to replace antibiotic growth promoters, improve growth performance, and reduce cost production in swine farming. The aim of this study is to identify and evaluate the probiotic traits of strain LCN13 isolated from traditionally fermented feed for swine. Thirty-five bacterial isolates with different morphological characteristics were isolated, among which 9 isolates showed the ability to produce lactic acid and antibacterial activity against pathogenic bacteria. Among them, isolate LCN13 exhibited a strong capacity to produce lactic acid (18.5 ± 0.31 g/L), inhibited gastrointestinal pathogens such as Salmonella typhimurium ATCC 14028 (18.3 ± 1.52 mm), Escherichia coli ATCC 11105 (24.7 ± 2.14 mm), and Staphylococcus epidermidis ATCC 35984 (31.6 ± 2.93 mm), and produced 182 ng/mL folate and 233 ng/mL riboflavin as measured by LC-MS/MS after 24 hours of incubation. Based on morphological, biochemical, and 16S rRNA gene analysis, the isolate LCN13 was identified as Lactobacillus plantarum. Phenotypic analysis revealed that L. plantarum LCN13 showed remarkable resistance to 1.2% ox-bile salt, 2.0 mM H2O2, and pH 3.0. In addition, the ability to produce high levels of folate (253.6 ± 10.7 ng/mL) and riboflavin (312.0 ± 12.2 ng/mL) after 48 hours was exploited for the first time in the L. plantarum. Taken together, L. plantarum LCN13 might serve as a potential probiotic candidate for animal farming. 
    Type of Medium: Online Resource
    ISSN: 2615-9023 , 2615-9023
    URL: Article
    DOI: 10.15625/2615-9023/16628
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2022
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Assessment of genetic diversity of 50 Vietnamese soybean cultivars with different response to ruts by SSR markers
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2012
    In:  TAP CHI SINH HOC Vol. 34, No. 2 ( 2012-06-06)
    Details
    In: TAP CHI SINH HOC, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 34, No. 2 ( 2012-06-06)
    Type of Medium: Online Resource
    ISSN: 0866-7160 , 0866-7160
    URL: Article
    DOI: 10.15625/0866-7160/v34n2.967
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2012
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    Online Resource
  • 4
    Online Resource
    Online Resource
    Vector construction to enhance GP5 antigen expression of virus PRRS in plant cells
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2016
    In:  Vietnam Journal of Biotechnology Vol. 14, No. 3 ( 2016-09-30), p. 491-497
    Details
    In: Vietnam Journal of Biotechnology, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 14, No. 3 ( 2016-09-30), p. 491-497
    Abstract: Plant vaccine is a new tool to enrich available vaccine resources for protection of human and animal health. Plant vaccine offers several advantages over current conventional vaccines, including that storage and transportationare convenient after lyophilization, production costs are low, and the contamination of mammalian pathogens is avoided. However, the low expression of foreign genes in plant still exists that limits the application of this kind of vaccine. Presently, plant virus-based expression vectors represent a technology that enables high levels of recombination proteins to be produced efficiently in plant cells. In this study, a modified TMV-based vector to elevate glycoprotein GP5 of PRRSV in plant cells without negative effects in the development of plant cells was developed. Gene encoded GP5 was replaced CP of TMV and the whole was regulated by the heat shock protein Hsp 18.2 promoter. Transgenic BY-2 cells carrying pHsp-TMV-GP5 showed the normal development compared to the ones harbouring pCB-35S-TMV-GP5. The results showed that the Hsp-TMV-GP5 construct do not have a negative effect on viability of transgenic plant cells. A further study will be carried out to investigate the expression of GP5 in stable transgenic plant cells to confirm the benefit of the modified expression vector in development of rapid and cost-effective antigens in plant cell suspension culture.
    Type of Medium: Online Resource
    ISSN: 1811-4989 , 1811-4989
    URL: Article
    DOI: 10.15625/1811-4989/14/3/9863
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2016
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    Online Resource
  • 5
    Online Resource
    Online Resource
    Study of Hanoi and HoChiMinh Stock Exchange by Econophysics Methods
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2014
    In:  Communications in Physics Vol. 24, No. 3S2 ( 2014-09-23)
    Details
    In: Communications in Physics, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 24, No. 3S2 ( 2014-09-23)
    Abstract: The econophysics methods are used to study the financial fluctuation of Hanoi Stock Exchange (HNX) and Hochiminh Stock Exchange (HSX) in comparison to Dow John Industrial Average's one. The study has been made both on panic period (2007-2008) and on normal time of theses stocks. The results point out that for the period under consideration, the distribution of returns tends to be Student distribution. There exists an analogy between non-equilibrium phase transitions and financial market movement. Thus it is hypothesized that financial markets undergo self-organizing when the external volatility perception rises above some critical value, the distribution of signs of returns is to be similar to a second order phase transition. The results obtained by econophysics method have quite good agreement with the ones obtained by other economy analyzation methods.
    Type of Medium: Online Resource
    ISSN: 2815-5947 , 0868-3166
    URL: Issue
    URL: Article
    DOI: 10.15625/0868-3166-24-3S2
    DOI: 10.15625/0868-3166/24/3S2/5011
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2014
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    Online Resource
  • 6
    Online Resource
    Online Resource
    Endophytic actinomycetes from mangrove plant \(\textit{Avicennia marina}\) in Quang Ninh province, Vietnam: distribution, cytotoxicity, and antioxidant activities
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2022
    In:  Academia Journal of Biology Vol. 44, No. 3 ( 2022-09-28), p. 87-98
    Details
    In: Academia Journal of Biology, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 44, No. 3 ( 2022-09-28), p. 87-98
    Abstract: Mangrove endophytes have recently gained considerable attention due to their diversity and abundance of novel bioactive secondary metabolites. Despite the fact that Streptomyces species are producers of more than 75% of commercialized antibiotics, Streptomyces associated with the extremely widespread mangrove plant Avicennia marina remain poorly characterized. In this study, nine actinomycetes were isolated from A. marina growing in a mangrove forest, as yet unexplored, of Quang Ninh province, Vietnam. Phylogenetic analysis of actinomycetes-specific 16S rRNA sequences indicated that they were subjected to five Streptomyces species including Streptomyces cacaoi, Streptomyces californicus, Streptomyces enissocaesillis, Streptomyces coelicoflavus, and Streptomyces variabilis, which have not been previously reported in mangrove plants. Among them, S. cacaoi AM1 showed strong inhibition effects against six tested pathogenic bacteria with inhibitory zones ranging from 7.5−22.3 mm. Using standard 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, 100 µg/mL ethyl acetate extract of AM1 showed potent cytotoxicity against breast cancer MCF-7 and lung cancer A549 cell lines with cell viability of 16.5 ± 1.28% and 17.69 ± 2.3%, respectively. As for antioxidant activities, AM1 extract exhibited strong antioxidant activities against 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical (92.4 ± 0.004%) and superoxide anion radical (42.4 ± 0.019%), which were positively correlated to high polyphenol (84.3 ± 3.4 µg GAE/g FW) and flavonoid (34.9 ± 4.8 µg QE/g FW) contents. These findings indicated that S. cacaoi AM1 could be a promising reservoir of antibacterial, anticancer, and antioxidant agents. This is the first report of mangrove endophytic Streptomyces derived from A. marina.
    Type of Medium: Online Resource
    ISSN: 2615-9023 , 2615-9023
    URL: Article
    DOI: 10.15625/2615-9023/17492
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2022
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  • 7
    Online Resource
    Online Resource
    Simple Model for Market Returns Distribution
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2013
    In:  Communications in Physics Vol. 23, No. 2 ( 2013-05-08), p. 185-
    Details
    In: Communications in Physics, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 23, No. 2 ( 2013-05-08), p. 185-
    Abstract: It has been observed that at the large time scales the distributionof stock market returns is convergent from Boltzmann distribution to Gaussianasymptotic one. To explain this universal phenomenon, we propose a new andsimple dynamic model to describe this convergence by the time parameter inassociation with the introducing the concept of relaxation time for nancialmarkets. The analysis of stock market data packages in dierent time intervalsshowed that our model ts well the nancial market data. The meaning ofso{called relaxation time has been qualitatively made clear, as a measure toestimate the stability of the market.
    Type of Medium: Online Resource
    ISSN: 2815-5947 , 0868-3166
    URL: Issue
    URL: Article
    DOI: 10.15625/0868-3166-23-2
    DOI: 10.15625/0868-3166/23/2/2382
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2013
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