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  • 1
    Online Resource
    Online Resource
    The domestic wastewater treatment capacity of Spirulina platensis SP4 and the application of the treated wastewater in stimulating rice germination
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2022
    In:  Vietnam Journal of Biotechnology Vol. 20, No. 4 ( 2022-12-28), p. 773-784
    Details
    In: Vietnam Journal of Biotechnology, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 20, No. 4 ( 2022-12-28), p. 773-784
    Abstract: Many scientists are interested in microalgae and cyanobacteria because of their richness in high-value bioactive metabolites (proteins, lipids, vitamins, plant growth regulators, and others). Microalgae and cyanobacteria can be used to produce valuable commodities such as dietary supplements, biofuel, animal feed, and agricultural fertilizer, etc. To improve the economic feasibility of the cyanobacterial product recovery process, it is possible to utilize domestic wastewater as a source of nutrients for their growth. This research focuses on assessing the ability of domestic wastewater treatment and treated domestic wastewater utilization to stimulate BC15 rice-grain sprouting by cyanobacteria Spirulina platensis SP4. Research results showed that S. platensis SP4 grown best in domestic wastewater at the initial density of 0.3 and the wastewater concentration of 100%. The incubation of S. platensis was performed in the laboratory under the condition of 16.8 g/L NaHCO3; aeration during 8 h/day; light: dark cycle of 8:16; light intensity of 5000 lux. Under these conditions S. platensis SP4 could treat N-NH4+, T-N, P-PO43-, T-P and COD well with the treatment efficiency of 96.37, 49.71, 67.05, 65.88 and 95.53%, respectively. The addition of treated domestic wastewater by S. platensis SP4 to BC15 rice grains stimulated the grouting by 99.54 ± 1.25%, which was 1.54 times higher than using the tap water and gave a germination efficiency equivalent to that of the experiments with adding cyanobacteria in standard medium with or without L-tryptophan addition for 48 h. The obtained research results have elucidated the feasibility of employing cyanobacteria in residential wastewater treatment as well as the reuse of treated wastewater for plant development.
    Type of Medium: Online Resource
    ISSN: 2815-5912 , 2815-5955
    URL: Article
    DOI: 10.15625/1811-4989/16871
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2022
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  • 2
    Online Resource
    Online Resource
    Impact of metal contamination to the emergence of (multi) antibiotic resistant bacteria in Thai Nguyen, Vietnam
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2022
    In:  Vietnam Journal of Biotechnology Vol. 20, No. 1 ( 2022-03-30), p. 187-196
    Details
    In: Vietnam Journal of Biotechnology, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 20, No. 1 ( 2022-03-30), p. 187-196
    Abstract: Heavy metal contamination in the environment due to anthropogenic activities in industrial and agricultural areas represents stress for the living ecosystem including soil microorganisms. The adaptive response of bacterial communities to these pollutants can be observed through the increasing proportion of resistant bacteria. Our study aimed at evaluating the effect of metal contamination to the emergence of bacteria resistant to 3 common antibiotics, ie., gentamycin, sulfamethoxazole, and norfloxacin in Tan Long Pb-Zn mining site, Thai Nguyen province by a culture-dependent approach. The results showed that under moderated Pb contamination, a significant increase in prevalence of gentamycin-resistant bacteria was observed. Antibiotic susceptibility test showed 45% of isolates resistant to at least two antibiotics among gentamycin, norfloxacin, tetracyclin, imipenem, andsulfamethoxazole, and 10.4 % of isolates resistant tho three antibiotics. More detailed investigations in molecular analysis are needed to identify and genetically characterize of multi-drug resistant isolates as well as to better understand the link between metal resistance and (multi)resistance to antibiotics.
    Type of Medium: Online Resource
    ISSN: 1811-4989 , 1811-4989
    URL: Article
    DOI: 10.15625/1811-4989/13509
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2022
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  • 3
    Online Resource
    Online Resource
    Giáp xác ký sinh trên ghẹ chữ thập Charybdis feriata Linnaeus, 1758 khu vực vịnh Nha Trang
    Trung tâm Nhiệt đới Việt - Nga ; 2022
    In:  Tạp chí Khoa học và Công nghệ nhiệt đới ( 2022-12)
    Details
    In: Tạp chí Khoa học và Công nghệ nhiệt đới, Trung tâm Nhiệt đới Việt - Nga, ( 2022-12)
    Abstract: Charybdis feriata (Linnaeus, 1758) is wide distribution and high economic value species in many countries around the world. In Vietnam, Charybdis feriata is on the list of endangered species that need to be conserved. Parasites cause many effects on the growth and development of crabs, which may be one of the causes leading to the decline of host populations. This paper presents the species composition, parasitic sites and infection status of parasitic crustaceans on C. feriata in Nha Trang Bay. From 113 individuals of Charybdis feriata collected in June and July 2022, we have identified 6 species of parasitic crustaceans, of which 2 species have been recorded for the first time on this crab, including: Octolasmis neptuni, Semibalanus sp.. Each infested crab is infected with up to 5 species of parasites. Octolasmis angulata was the dominant species with the highest prevalence and median intensity of infection at 44.4% and 6.5 individuals/infected crabs, respectively. Comparison of infection status by sex and host size showed that Sacculina serenei infection rate was higher in female crabs than male crabs, while infection intensity in male crabs was higher than female crabs. The prevalence and intensity of infection with Octolasmis angulata species increased significantly with host size. There was no statistical difference between the different host groups of sex and size. The data on parasitic crustaceans on Charybdis feriata contribute to the basis for the recovery, sustainable development of this endangered species.
    Type of Medium: Online Resource
    ISSN: 0866-7535
    URL: Journal
    URL: Article
    DOI: 10.58334/vrtc.jtst
    DOI: 10.58334/vrtc.jtst.n30.14
    Language: Unknown
    Publisher: Trung tâm Nhiệt đới Việt - Nga
    Publication Date: 2022
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  • 4
    Online Resource
    Online Resource
    Curriculum Development Competency of Pedagogical Students: An Exploratory Study from Vietnam
    Society for Research and Knowledge Management ; 2023
    In:  International Journal of Learning, Teaching and Educational Research Vol. 22, No. 5 ( 2023-5-30), p. 457-478
    Details
    In: International Journal of Learning, Teaching and Educational Research, Society for Research and Knowledge Management, Vol. 22, No. 5 ( 2023-5-30), p. 457-478
    Abstract: The curriculum development capacity of pedagogical students as pre-service teachers at universities of education plays a decisive role in the process of achieving the educational goals of a nation. In Vietnam, ethnic minority students have more drawbacks than their peers, so the issues of enhancing curriculum development capacity for ethnic minority students in pedagogical universities in Vietnam need to be paid more attention. In this study, the researchers used a quantitative research method to assess the curriculum development competency of students in general and ethnic minority students, in particular, at several pedagogical universities in Vietnam. The study was carried out online through Google Forms. After data collection, the study obtained 1 246 responses from 1 510 students of nine pedagogical universities. Research findings show that (1) there are three groups of competencies with 15 components of curriculum development competency, including comprehension (knowledge) of curriculum development (A1); practical skills (skills) of curriculum development (A2) and emotional competency (attitudes) about curriculum development (A3); (2) The curriculum development competency of ethnic minority students in pedagogical universities is quite good, in which the component competencies range from 3.7 and 3.9 in average point for each of the above groups of competencies (on a 5-point Likert Scale). Research findings suggest contributing to providing scientific bases and useful suggestions for developing sustainable education in different regions of Vietnam.
    Type of Medium: Online Resource
    ISSN: 1694-2493 , 1694-2116
    URL: Journal
    URL: Article
    DOI: 10.26803/ijlter
    DOI: 10.26803/ijlter.22.5.23
    Language: Unknown
    Publisher: Society for Research and Knowledge Management
    Publication Date: 2023
    detail.hit.zdb_id: 2965431-2
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  • 5
    Online Resource
    Online Resource
    Efflux Pump Inhibitors in Controlling Antibiotic Resistance: Outlook under a Heavy Metal Contamination Context
    MDPI AG ; 2023
    In:  Molecules Vol. 28, No. 7 ( 2023-03-24), p. 2912-
    Details
    In: Molecules, MDPI AG, Vol. 28, No. 7 ( 2023-03-24), p. 2912-
    Abstract: Multi-drug resistance to antibiotics represents a growing challenge in treating infectious diseases. Outside the hospital, bacteria with the multi-drug resistance (MDR) phenotype have an increased prevalence in anthropized environments, thus implying that chemical stresses, such as metals, hydrocarbons, organic compounds, etc., are the source of such resistance. There is a developing hypothesis regarding the role of metal contamination in terrestrial and aquatic environments as a selective agent in the proliferation of antibiotic resistance caused by the co-selection of antibiotic and metal resistance genes carried by transmissible plasmids and/or associated with transposons. Efflux pumps are also known to be involved in either antibiotic or metal resistance. In order to deal with these situations, microorganisms use an effective strategy that includes a range of expressions based on biochemical and genetic mechanisms. The data from numerous studies suggest that heavy metal contamination could affect the dissemination of antibiotic-resistant genes. Environmental pollution caused by anthropogenic activities could lead to mutagenesis based on the synergy between antibiotic efficacy and the acquired resistance mechanism under stressors. Moreover, the acquired resistance includes plasmid-encoded specific efflux pumps. Soil microbiomes have been reported as reservoirs of resistance genes that are available for exchange with pathogenic bacteria. Importantly, metal-contaminated soil is a selective agent that proliferates antibiotic resistance through efflux pumps. Thus, the use of multi-drug efflux pump inhibitors (EPIs) originating from natural plants or synthetic compounds is a promising approach for restoring the efficacy of existing antibiotics, even though they face a lot of challenges.
    Type of Medium: Online Resource
    ISSN: 1420-3049
    URL: Article
    DOI: 10.3390/molecules28072912
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2008644-1
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  • 6
    Online Resource
    Online Resource
    TỶ LỆ NHIỄM KHUẨN VẾT MỔ NÔNG VỚI PHƯƠNG PHÁP THAY GĂNG TRƯỚC KHI ĐÓNG BỤNG TRONG PHẪU THUẬT MỔ LẤY THAI
    Vietnam Medical Journal, Vietnam Medical Association ; 2022
    In:  Tạp chí Y học Việt Nam Vol. 508, No. 1 ( 2022-01-05)
    Details
    In: Tạp chí Y học Việt Nam, Vietnam Medical Journal, Vietnam Medical Association, Vol. 508, No. 1 ( 2022-01-05)
    Abstract: Đặt vấn đề: Hiện nay đã có nhiều nghiên cứu chỉ những biện pháp phòng ngừa nhiễm khuẩn vết mổ hiệu quả. Gần đây có một số nghiên cứu chỉ ra rằng việc thay găng trước khi đóng bụng trong mổ lấy thai có thể làm giảm nhiễm trùng vết mổ. Mục tiêu: Đánh giá hiệu quả giảm biến chứng vết mổ nông của phương pháp thay găng so với không thay găng trước khi đóng phúc mạc thành bụng trong phẫu thuật mổ lấy thai. Phương pháp: Thử nghiệm lâm sàng ngẫu nhiên có nhóm chứng. Tại Bệnh viện Hùng Vương, nghiên cứu thực hiện từ tháng 12/2020 đến tháng 3/2021 trên 629 sản phụ trong đó 319 nhóm chứng và 310 nhóm can thiệp. Tất cả nhóm phẫu thuật cho những sản phụ thuộc nhóm can thiệp sẽ được thay găng trước khi đóng phục mạc thành bụng. Chúng tôi tiến hành đánh giá lần 1 vào ngày 3 hoặc ngày 4 hậu phẫu và lần 2 vào ngày 30 ± 2 hậu phẫu. Biến chứng vết mổ nông gồm chảy dịch vết mổ, nhiễm trùng vết mổ.  Kết quả: tỷ lệ biến chứng vết mổ nông của nhóm không thay găng và của nhóm thay găng lần lượt là 7,8% và 2,6%. Sự khác biệt của hai nhóm có ý nghĩa thống kê p = 0,005 ( OR: 0,29; KTC 95%: 0,13 – 0,68). Kết luận: Thay găng làm giảm tỷ lệ biến chứng vết mổ nông trong phẫu thuật mổ lấy thai. Có thể áp dụng vào quy trình mổ lấy thai để giảm tỷ lệ nhiễm trùng vết mổ.
    Type of Medium: Online Resource
    ISSN: 1859-1868
    URL: Article
    DOI: 10.51298/vmj.v508i1.1567
    Language: Unknown
    Publisher: Vietnam Medical Journal, Vietnam Medical Association
    Publication Date: 2022
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  • 7
    Online Resource
    Online Resource
    KẾT QUẢ SÀNG LỌC TĂNG HUYẾT ÁP Ở NGƯỜI TỪ 40 TUỔI TRỞ LÊN TẠI TỈNH LAI CHÂU NĂM 2021-2022
    Vietnam Medical Journal, Vietnam Medical Association ; 2023
    In:  Tạp chí Y học Việt Nam Vol. 531, No. 1 ( 2023-10-27)
    Details
    In: Tạp chí Y học Việt Nam, Vietnam Medical Journal, Vietnam Medical Association, Vol. 531, No. 1 ( 2023-10-27)
    Abstract: Nghiên cứu được tiến hành với mục tiêu báo cáo kết quả sàng lọc tăng huyết áp (THA) ở người dân ≥ 40 tuổi tại cộng đồng tại tỉnh Lai Châu năm 2021 − 2022. Có 91.620 đối tượng đủ tiêu chuẩn đều được mời tham gia nghiên cứu, các nhân viên y tế thôn bản (YTTB) sẽ sàng lọc tất cả đối tượng, nếu người dân bị nghi ngờ THA (huyết áp tâm thu ≥ 140mmHg và/hoặc huyết áp tâm trương ≥ 90mmHg) sẽ được hướng dẫn đến Trạm y tế (TYT) xã để thực hiện chuẩn đoán THA. Kết quả sàng lọc trên 91.620 đối tượng cho thấy tỷ lệ THA ở người ≥40 tuổi là 20,5%, trong đó ở nam và nữ chiếm tỷ lệ lần lượt là 51,6%, 48,4%. THA độ 1 chiếm tỷ lệ cao nhất cả ở nam và nữ, tương ứng là 96,2% và 97,0%. Kết quả sàng lọc cho thấy số người bị THA chưa được phát hiện trong cộng đồng còn rất lớn. Các chương trình sàng lọc THA tại cộng đồng cần được triển khai, duy trì nhằm phát hiện những người bị THA và đưa người bị THA vào quản lý điều trị theo hướng dẫn của Bộ Y tế.
    Type of Medium: Online Resource
    ISSN: 1859-1868
    URL: Article
    DOI: 10.51298/vmj.v531i1.6909
    Language: Unknown
    Publisher: Vietnam Medical Journal, Vietnam Medical Association
    Publication Date: 2023
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  • 8
    Online Resource
    Online Resource
    Intention to pursue a master degree of final year students: Empirical research from Hanoi university of industry
    GSC Online Press ; 2024
    In:  World Journal of Advanced Research and Reviews Vol. 22, No. 2 ( 2024-5-30), p. 190-202
    Details
    In: World Journal of Advanced Research and Reviews, GSC Online Press, Vol. 22, No. 2 ( 2024-5-30), p. 190-202
    Abstract: Nowadays, pursuing a master degree in economics and engineering is becoming an inevitable trend in the era of international integration because of benefits of its holders. This research aims to clarify the factors that influence of the intention to pursue master degree of final year students. To reach the end, this research based on the theory of planned behavior (TPB), benefit-cost theory, and the motivation-opportunity-ability model (MOA). The research utilizes both qualitative and quantitative methods. The collected data was analyzed by using SPSS 26 and AMOS 24. This research showed the benefits and costs influence on perceived value which in turn have effect on intention to pursue master degree of final year students. Furthermore, the subjective norm does not influence on the intention, contrary to previous studies that have shown its significance. This will help schools better understand students’ psychology and devise appropriate encouragement and motivation policies.
    Type of Medium: Online Resource
    ISSN: 2581-9615
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.30574/wjarr.2024.22.2
    DOI: 10.30574/wjarr
    DOI: 10.30574/wjarr.2024.22.2.1382
    Language: Unknown
    Publisher: GSC Online Press
    Publication Date: 2024
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  • 9
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    Online Resource
    Widely targeted metabolomics reveals the species‐specific, matureness‐specific and post‐harvest‐specific discriminations in the chemical profiles of Vietnamese endemic golden camellias
    Wiley ; 2024
    In:  International Journal of Food Science & Technology
    Details
    In: International Journal of Food Science & Technology, Wiley
    Abstract: Vietnam is one of the countries with the highest diversity of golden camellias in the world, with more than forty endemic species. However, studies on Vietnamese golden camellias need to be expanded to fill a knowledge gap on these species' chemical profiles and pharmacological properties. This qualitative study focuses on six golden camellias: four endemic species from Tam Dao district, Vinh Phuc province, including Camellia hakodae , Camellia phanii , Camellia tamdaoensis , Camellia tienii and two species commonly cultivated in Quang Ninh province including Camellia petelotii and Camellia euphlebia . A mutual profile of 131 metabolites was obtained by using widely targeted metabolomics analysis using ultra‐performance liquid chromatography coupled with tandem mass spectrometry. Comparative metabolomics was performed among leaf extracts of six golden teas, between young and mature leaves and between freeze‐drying and oven‐drying leaves to discriminate these species, and determine the effect of developmental stage and post‐harvesting method on the plant metabolism. The PLS‐DA model successfully illustrated a clear separation of the six species and suggested apigenin C‐glycoside derivatives as chemical markers for the diversity. Young and mature leaves of all six species also produced distinguished metabolomes, differentiated by mostly amino acid derivatives. The multivariate analysis also indicated the conversion of some flavonoids and amino acids induced by heat in the drying process. These results offer metabolite markers for quality control of Vietnamese golden camellias and recommendations for their usage and preparation.
    Type of Medium: Online Resource
    ISSN: 0950-5423 , 1365-2621
    URL: Article
    DOI: 10.1111/ijfs.17071
    Language: English
    Publisher: Wiley
    Publication Date: 2024
    detail.hit.zdb_id: 2016518-3
    detail.hit.zdb_id: 883561-5
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  • 10
    Online Resource
    Online Resource
    Phytochemical Composition and Potential Bioactivities of the Essential Oil from the Peels of Paramignya trimera (Oliv.) Guillaum from Vietnam
    Informa UK Limited ; 2022
    In:  Journal of Essential Oil Bearing Plants Vol. 25, No. 2 ( 2022-03-04), p. 273-281
    Details
    In: Journal of Essential Oil Bearing Plants, Informa UK Limited, Vol. 25, No. 2 ( 2022-03-04), p. 273-281
    Type of Medium: Online Resource
    ISSN: 0972-060X , 0976-5026
    URL: Article
    DOI: 10.1080/0972060X.2022.2066987
    Language: English
    Publisher: Informa UK Limited
    Publication Date: 2022
    detail.hit.zdb_id: 2455250-1
    detail.hit.zdb_id: 2127289-X
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