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  • 1
    In: Tạp chí Y học Cộng đồng, Institute of Community Health, Vol. 63, No. 4 ( 2022-08-08)
    Abstract: Mục tiêu: Mô tả thực trạng và một số yếu tố cá nhân, gia đình liên quan đến hoạt động thể lực củasinh viên Trường Đại học Tây Bắc năm học 2020-2021.Phương pháp nghiên cứu: Mô tả cắt ngang có phân tích trên 832 sinh viên Trường Đại học Tây Bắc.Kết quả nghiên cứu: Tỷ lệ đủ hoạt động thể lực là 54,4%, tỷ lệ thiếu hoạt động thể lực là 45,6%.Trong đó có 24,6% sinh viên hoạt động thể lực ở mức tích cực, 29,8% hoạt động ở mức trung bìnhvà 45,6% hoạt động thấp. Tỷ lệ thiếu hoạt động thể lực ở nữ là 50,5% trong khi ở nam là 38,1%. Cómối liên quan giữa mức độ hoạt động thể lực của sinh viên với một số yếu tố như: giới tính (p 〈 0,001),dân tộc (p 〈 0,001), khu vực sống (p 〈 0,001), năm học (p 〈 0,001) và yếu tố gia đình, bạn bè.Kết luận: Tỷ lệ thiếu hoạt động thể lực của sinh viên Trường Đại học Tây Bắc là 45,6%, đủ hoạtđộng thể lực là 54,4%. Các yếu tố liên quan đến hoạt động thể lực được ghi nhận là giới tính, dân tộc,khu vực sống của sinh viên, năm học và sự ủng hộ của gia đình, bạn bè.
    Type of Medium: Online Resource
    ISSN: 2354-0613
    URL: Issue
    Language: Unknown
    Publisher: Institute of Community Health
    Publication Date: 2022
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  • 2
    Online Resource
    Online Resource
    Institute of Advanced Engineering and Science ; 2020
    In:  Indonesian Journal of Electrical Engineering and Computer Science Vol. 19, No. 2 ( 2020-08-01), p. 723-
    In: Indonesian Journal of Electrical Engineering and Computer Science, Institute of Advanced Engineering and Science, Vol. 19, No. 2 ( 2020-08-01), p. 723-
    Abstract: 〈 p 〉 〈 span 〉 This research aims to propose an adaptive control system for controlling the speed of the Direct Current (DC) motor. The system consists of two control loops: the first control loop is a traditional PID controller and the second control loop is an adaptive controller. The role of the adaptive controller is adjusting the output of the control object follows with the output of the reference model. The adjustment mechanism is very simple, but the quality of the whole system is very high: the conversion time is short and there isn't overshoot. The quality of the proposed adaptive control system is also compared to the traditional PID control system to show the advantages of the new system. 〈 /span 〉 〈 /p 〉
    Type of Medium: Online Resource
    ISSN: 2502-4760 , 2502-4752
    URL: Issue
    Language: Unknown
    Publisher: Institute of Advanced Engineering and Science
    Publication Date: 2020
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  • 3
    Online Resource
    Online Resource
    Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM) ; 2023
    In:  Tạp chí Y học Dự phòng Vol. 32, No. 9 ( 2023-03-10), p. 62-71
    In: Tạp chí Y học Dự phòng, Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM), Vol. 32, No. 9 ( 2023-03-10), p. 62-71
    Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing novel coronavirus disease 2019 (COVID-19) appeared in Wuhan, Hubei province, China in late December 2019 and has rapidly spread worldwide. In this study, a total of 267 genomes of SARS CoV-2 viruses collected from 28 Center for Diseases Controls and hospitals in different provinces in Northern and Central Vietnam from January 2020 to April 2021 were sequenced and analyzed their diversity using the iSeq 100 platform. Results showed that most of the virus samples originated from domestic community patients (84.3%). Variable variants of SARS CoV-2 virus were detected within the three pandemic waves. The very first variant of SARS-CoV-2 in Viet Nam in January 2020 was 19B (Nextstrain Clade), 3/8 of the variants were from the international arrival samples group. In the first and second pandemic waves, lineage 20B was the most prevalent and this variant was found in Da Nang, Hai Duong and Thai Binh with a large number of patients. In the third wave of the COVID-19 pandemic, lineage 20I was the most dominant and detected in all provinces where the outbreak occurred. Five COVID-19 clusters caused by SARS-CoV-2 variant 20I were also found during this time.
    Type of Medium: Online Resource
    ISSN: 0868-2836
    Language: Unknown
    Publisher: Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM)
    Publication Date: 2023
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  • 4
    Online Resource
    Online Resource
    Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM) ; 2021
    In:  Tạp chí Y học Dự phòng Vol. 30, No. 9 ( 2021-04-25), p. 11-17
    In: Tạp chí Y học Dự phòng, Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM), Vol. 30, No. 9 ( 2021-04-25), p. 11-17
    Abstract: From January to August 2020, Northern Viet Nam faced a COVID-19 outbreak, up to September 2020, there were 1122 confrmed cases of SARS-CoV-2, of which 465 cases were imported from Europe, America and Asia, 657 cases were identifed domestically. A total of 30,686 samples were collected during the SARS-CoV-2 outbreak in Northern Viet Nam and examined by Real-time RT-PCR using primers and probe from Charite - Berlin protocol. This study showed the initial results of SARS-CoV-2 detection and RNA quantitative in positive samples. The positive rate was 0.8%, ranging from 0.4 to 3.5% according to collection sites. Out of 251 positive samples, the mean Ct value was 28 (IQR: 22.3-32; range 14 - 38). The positive samples had a Ct value below 30 was 68.5%, there was no signifcant difference between the Ct value of the group ≤ 30 and 〉 30. The mean of the RNA copies/µl was 8.4.107, (IQR: 2.29.106 - 1.83.109 RNA copies/µl, range: 1.95.103 – 4.95.1011). In the group of imported COVID-19 cases, the rate of virus at low level was 29%, an average was 56% and at high level was 15%. In the community groups, the viral load data showed that the average rate at low, intermediate and high level were 20%, 63% and 17% respectively. The proportion of high-level viral load may raise an alert to start the quarantine process to reduce the transmission of SARS-CoV-2
    Type of Medium: Online Resource
    ISSN: 0868-2836
    Language: Unknown
    Publisher: Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM)
    Publication Date: 2021
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  • 5
    In: Tạp chí Y học Dự phòng, Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM), Vol. 32, No. 2 ( 2022-04-26), p. 129-138
    Abstract: Nhiễm trùng đường hô hấp cấp tính nặng (VĐHHC - SARI) là nguyên nhân hàng đầu nhập viện và gây tửvong ở trẻ em trên toàn cầu. Bệnh viện Đa khoa tỉnh Quảng Ninh, là một trong hai điểm giám sát VĐHHCtại miền Bắc Việt Nam. Trong số 653 mẫu dịch họng/tỵ hầu thu thập trong 2 năm 2018 - 2019, 338 mẫu (60,8%) được xác định dương tính, trong đó dương tính với vi rút cúm là 26% và với các vi rút hô hấp khác là 34,8%. Trong số các mẫu dương tính, 314 mẫu nhiễm 1 tác nhân vi rút, 3 mẫu đồng nhiễm 2 phân typ vi rút cúm và 21 mẫu đồng nhiễm 2 tác nhân vi rút hô hấp khác ngoài cúm. Vi rút cúm A/H1N1pdm09 chiếm tỷ lệ cao nhất 11,6%; đứng thứ hai là vi rút hợp bào đường hô hấp (Respiratory syncytial virus – RSV) (10,6%); vi rút cúm A/H3 và Rhino với tỷ lệ là 8,4% và 8,1%. Các vi rút cúm B, Adeno, vi rút gây viêm phổi (human Metapneumovirus - hMPV), á cúm (Parainfluenza virus – PIV) 1,2,3 chiếm tỷ lệ từ 0,8% đến 5,6%. Các vi rút cúm mùa lưu hành quanh năm, chiếm ưu thế vào mùa đông xuân, RSV và vi rút Rhino nổi trội vào mùa hè, chủ yếu ở lứa tuổi sơ sinh và trẻ nhỏ dưới 5 tuổi. Nghiên cứu xác định vai trò của một số loại vi rút hô hấp trong tiến triển nặng của VĐHHC cần được tiếp tục thực hiện tại Việt Nam.
    Type of Medium: Online Resource
    ISSN: 0868-2836
    Language: Unknown
    Publisher: Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM)
    Publication Date: 2022
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  • 6
    In: Frontiers in Immunology, Frontiers Media SA, Vol. 12 ( 2021-12-6)
    Abstract: The coronavirus disease 2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a global health concern. The development of vaccines with high immunogenicity and safety is crucial for controlling the global COVID-19 pandemic and preventing further illness and fatalities. Here, we report the development of a SARS-CoV-2 vaccine candidate, Nanocovax, based on recombinant protein production of the extracellular (soluble) portion of the spike (S) protein of SARS-CoV-2. The results showed that Nanocovax induced high levels of S protein-specific IgG and neutralizing antibodies in three animal models: BALB/c mouse, Syrian hamster, and a non-human primate ( Macaca leonina ). In addition, a viral challenge study using the hamster model showed that Nanocovax protected the upper respiratory tract from SARS-CoV-2 infection. Nanocovax did not induce any adverse effects in mice ( Mus musculus var. albino) and rats ( Rattus norvegicus ). These preclinical results indicate that Nanocovax is safe and effective.
    Type of Medium: Online Resource
    ISSN: 1664-3224
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2606827-8
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  • 7
    Online Resource
    Online Resource
    Institute of Advanced Engineering and Science ; 2020
    In:  International Journal of Electrical and Computer Engineering (IJECE) Vol. 10, No. 5 ( 2020-10-01), p. 4562-
    In: International Journal of Electrical and Computer Engineering (IJECE), Institute of Advanced Engineering and Science, Vol. 10, No. 5 ( 2020-10-01), p. 4562-
    Abstract: In this paper, the authors propose an optimal controller for the ship motion. Firstly, the model and dynamic equations of the ship motion are presented. Based on the model of the ship motion, the authors build the linear quadratic regular algorithm-based control system of ship motion to minimize the error between the desired trajectory and the response trajectory. The task of the controller is to control the trajectory of the ship to coincide with the desired trajectory. The ship model and controller are built to investigate the system quality through Matlab-Simulink software. The results show that the quality of the hold control system is very high. The trajectory of a ship always follows the desired trajectory with very small errors.
    Type of Medium: Online Resource
    ISSN: 2722-2578 , 2088-8708
    URL: Issue
    Language: Unknown
    Publisher: Institute of Advanced Engineering and Science
    Publication Date: 2020
    detail.hit.zdb_id: 2667127-X
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  • 8
    Online Resource
    Online Resource
    Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM) ; 2024
    In:  Tạp chí Y học Dự phòng Vol. 33, No. 8 ( 2024-03-20), p. 16-23
    In: Tạp chí Y học Dự phòng, Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM), Vol. 33, No. 8 ( 2024-03-20), p. 16-23
    Abstract: Beside molecular tests (realtime RT-PCR) which known as the golden key for SARS-CoV-2 confirmation, antibody test can be used to determine the responses in human antibody to SARS-CoV-2 and the result of plaque reduction neutralization test (PRNT) could identify the people who have been exposed with the SARS-CoV-2 and carried the neutralization antibody. Total 9936 samples were collected in 3 groups healthcare workers, inpatients (not related to COVID-19 before) and community in Da Nang city during July-August 2020. These cross sectional results showed that the rate of neutralization antibody in three groups in this research was 0.2%, in that, 0.1% in community, 0.2% in inpatient and 0.4% in healthcare workers. Follow-up study with 1253 paired sera of healthcare workers, the rate of SARS-CoV-2 neutralization antibody was determined as 2.1%. A downward trend of this neutralization antibody overtime has been shown in the study.
    Type of Medium: Online Resource
    ISSN: 0868-2836
    Language: Unknown
    Publisher: Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM)
    Publication Date: 2024
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  • 9
    Online Resource
    Online Resource
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2022
    In:  Academia Journal of Biology Vol. 44, No. 4 ( 2022-12-28), p. 101-100
    In: Academia Journal of Biology, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 44, No. 4 ( 2022-12-28), p. 101-100
    Abstract: Respiratory syncytial virus (RSV) is one of the most interesting respiratory viruses in the world. This virus causes symptoms of illnesses like influenza and imposes a heavy burden on medical services and the economy. However, studies on RSV in Vietnam are limited, while most of the RSV research has primarily been done before 2015. We collected the clinical respiratory samples from severe acute respiratory infection (SARI) patients to screen for RSV by real-time RT-PCR and study their molecular characteristics. RSV-positive specimens with Ct value 〈 25 collected between 2017-2018 in north Vietnam were inoculated on the Hep2 cell line. The results showed that 25 (22.32%) RSV virus strains were harvested from the inoculation procedure with 18 RSV A and 7 RSV B. The whole genomes of four representative strains were sequenced with the Illumina iSeq 100. Phylogenetic trees analysis of each subtype were classified as two RSV A and two RSV B sequences as genotype ON1 lineage 1.2 and genotype BA9 respectively. These genotypes were identified as typical Vietnamese strains from 2009-2012. Nevertheless, the RSV strains before 2015 and those in this study had significant differences in the G gene, with 34–35 amino acids in RSV A and 4 amino acids in RSV B. Moreover, the first whole genome of Vietnamese RSV since 2016 may give more understanding of the molecular characteristics of RSVs in Vietnam.
    Type of Medium: Online Resource
    ISSN: 2615-9023
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2022
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  • 10
    Online Resource
    Online Resource
    Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM) ; 2021
    In:  Tạp chí Y học Dự phòng Vol. 30, No. 9 ( 2021-04-25), p. 18-25
    In: Tạp chí Y học Dự phòng, Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM), Vol. 30, No. 9 ( 2021-04-25), p. 18-25
    Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was appeared in Wuhan, Hubei province, Chinain late December 2019. Rapidly, COVID-19 (disease caused by SARS-CoV-2) then spread rapidly to more than 200countries and regions around the world in April 2020. Since Vietnam is one of the frst countries to detect COVID-19patients, diagnostic methods and outbreak management are essentially needed for the national guidelines. The NationalInstitute of Hygiene and Epidemiology (NIHE) decided to conduct a study by collecting nasal swab from suspectedpeoples. These specimens were screened and inoculated the positive specimens. From January to August 2020, 40 positive specimens of clinical symptoms which Ct 〈 30 and 27 isolated specimens were sequencing. All the specimens weresequenced the frst time on the Illumina iSeq 100 platform in Vietnam. After 15 operations (12 complete and othersincomplete ones), the entire genome virus of 27 viral strains and 12 clinical specimens were listed. Based on GISAID,these sequences were grouped into three big groups (S, V, G) with dominance of subclade GR (17 isolates and 9 clinicalsamples). Eight isolated sequences were uploaded to Genbank to share data with other researchers in worldwide.
    Type of Medium: Online Resource
    ISSN: 0868-2836
    Language: Unknown
    Publisher: Tap chi Y hoc du phong (Vietnam Journal of Preventive Medicine-VJPM)
    Publication Date: 2021
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