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  1. Article ; Online: Corrigendum to "Financing for HIV/AIDS in the dual transition of epidemics and economy: the 10-year experience of Vietnam" [The Lancet Regional Health - Western Pacific 38 (2023) 100886].

    Tran, Bach Xuan / Vu, Giang / Latkin, Carl

    The Lancet regional health. Western Pacific

    2024  Volume 44, Page(s) 101041

    Abstract: This corrects the article DOI: 10.1016/j.lanwpc.2023.100886.]. ...

    Abstract [This corrects the article DOI: 10.1016/j.lanwpc.2023.100886.].
    Language English
    Publishing date 2024-03-11
    Publishing country England
    Document type Published Erratum
    ISSN 2666-6065
    ISSN (online) 2666-6065
    DOI 10.1016/j.lanwpc.2024.101041
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Financing for HIV/AIDS in the dual transition of epidemics and economy: the 10-year experience of Vietnam.

    Tran, Bach Xuan / Vu, Giang / Latkin, Carl

    The Lancet regional health. Western Pacific

    2023  Volume 38, Page(s) 100886

    Language English
    Publishing date 2023-09-04
    Publishing country England
    Document type Journal Article
    ISSN 2666-6065
    ISSN (online) 2666-6065
    DOI 10.1016/j.lanwpc.2023.100886
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Sparse Optical Flow Implementation Using a Neural Network for Low-Resolution Thermal Aerial Imaging.

    Nguyen, Tran Xuan Bach / Chahl, Javaan

    Journal of imaging

    2022  Volume 8, Issue 10

    Abstract: This study is inspired by the widely used algorithm for real-time optical flow, the sparse Lucas-Kanade, by applying a feature extractor to decrease the computational requirement of optical flow based neural networks from real-world thermal aerial ... ...

    Abstract This study is inspired by the widely used algorithm for real-time optical flow, the sparse Lucas-Kanade, by applying a feature extractor to decrease the computational requirement of optical flow based neural networks from real-world thermal aerial imagery. Although deep-learning-based algorithms have achieved state-of-the-art accuracy and have outperformed most traditional techniques, most of them cannot be implemented on a small multi-rotor UAV due to size and weight constraints on the platform. This challenge comes from the high computational cost of these techniques, with implementations requiring an integrated graphics processing unit with a powerful on-board computer to run in real time, resulting in a larger payload and consequently shorter flight time. For navigation applications that only require a 2D optical flow vector, a dense flow field computed from a deep learning neural network contains redundant information. A feature extractor based on the Shi-Tomasi technique was used to extract only appropriate features from thermal images to compute optical flow. The state-of-the-art RAFT-s model was trained with a full image and with our proposed alternative input, showing a substantial increase in speed while maintain its accuracy in the presence of high thermal contrast where features could be detected.
    Language English
    Publishing date 2022-10-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2824270-1
    ISSN 2313-433X ; 2313-433X
    ISSN (online) 2313-433X
    ISSN 2313-433X
    DOI 10.3390/jimaging8100279
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Multilevel and amplified effects of COVID-19 pandemic on health workers.

    Tran, Bach Xuan / Vu, Giang Thu / Latkin, Carl A / Ho, Roger C M

    The Lancet regional health. Western Pacific

    2022  Volume 23, Page(s) 100478

    Language English
    Publishing date 2022-05-07
    Publishing country England
    Document type Journal Article
    ISSN 2666-6065
    ISSN (online) 2666-6065
    DOI 10.1016/j.lanwpc.2022.100478
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Editorial: Strengthening Health System and Community Responses to Confront COVID-19 Pandemic in Resource-Scare Settings.

    Tran, Bach Xuan / Tran, Linh My / Hwang, Jongnam / Do, Hoa / Ho, Roger

    Frontiers in public health

    2022  Volume 10, Page(s) 935490

    MeSH term(s) COVID-19/epidemiology ; Health Resources ; Humans ; Pandemics ; SARS-CoV-2
    Language English
    Publishing date 2022-07-06
    Publishing country Switzerland
    Document type Editorial ; Research Support, Non-U.S. Gov't
    ZDB-ID 2711781-9
    ISSN 2296-2565 ; 2296-2565
    ISSN (online) 2296-2565
    ISSN 2296-2565
    DOI 10.3389/fpubh.2022.935490
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A Comparison of Dense and Sparse Optical Flow Techniques for Low-Resolution Aerial Thermal Imagery.

    Nguyen, Tran Xuan Bach / Rosser, Kent / Chahl, Javaan

    Journal of imaging

    2022  Volume 8, Issue 4

    Abstract: It is necessary to establish the relative performance of established optical flow approaches in airborne scenarios with thermal cameras. This study investigated the performance of a dense optical flow algorithm on 14 bit radiometric images of the ground. ...

    Abstract It is necessary to establish the relative performance of established optical flow approaches in airborne scenarios with thermal cameras. This study investigated the performance of a dense optical flow algorithm on 14 bit radiometric images of the ground. While sparse techniques that rely on feature matching techniques perform very well with airborne thermal data in high-contrast thermal conditions, these techniques suffer in low-contrast scenes, where there are fewer detectable and distinct features in the image. On the other hand, some dense optical flow algorithms are highly amenable to parallel processing approaches compared to those that rely on tracking and feature detection. A Long-Wave Infrared (LWIR) micro-sensor and a PX4Flow optical sensor were mounted looking downwards on a drone. We compared the optical flow signals of a representative dense optical flow technique, the Image Interpolation Algorithm (I2A), to the Lucas-Kanade (LK) algorithm in OpenCV and the visible light optical flow results from the PX4Flow in both X and Y displacements. The I2A to LK was found to be generally comparable in performance and better in cold-soaked environments while suffering from the aperture problem in some scenes.
    Language English
    Publishing date 2022-04-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2824270-1
    ISSN 2313-433X ; 2313-433X
    ISSN (online) 2313-433X
    ISSN 2313-433X
    DOI 10.3390/jimaging8040116
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Parental knowledge and practice on childhood caries prevention in northern Vietnam.

    Vu, Dung Anh / Vu, Hai Minh / Vu, Hoang Minh / Tran, Phuc Thai / Duong, Hoang Huy / Tran, Kham Quoc / Nguyen, Bach Xuan / Luong, Hien Xuan

    Frontiers in public health

    2023  Volume 11, Page(s) 1254479

    Abstract: This study was conducted to describe the knowledge and practices on dental caries prevention among parents of preschool children in Vietnam and identify associated factors. A cross-sectional study was conducted in three preschools in Northern Vietnam in ... ...

    Abstract This study was conducted to describe the knowledge and practices on dental caries prevention among parents of preschool children in Vietnam and identify associated factors. A cross-sectional study was conducted in three preschools in Northern Vietnam in 2020. A total of 316 parents of preschool children were randomly recruited. Knowledge and practices regarding early dental caries prevention were asked by using a structured questionnaire. Multivariate Tobit regression was used to examine factors associated with knowledge and practice scores. Results showed four aspects of knowledge that had the lowest proportion of parents having correct responses included timing of complete primary tooth replacement (12.3%), benefits of undergoing regular dental examination (31.7%), technique for brushing a child's teeth (33.9%), and duration for brushing (36.7%). The knowledge of parents was moderately low at 6.3/12 (SD = 2.3). The practices of parents were moderately good with the mean practice score at 6.1/9 (SD = 2.0). The proportion of parents taking children for regular checkups (56.2%) and replacing toothbrush every 3 months (53.7%) were the lowest. Information source, occupation, education and perceived necessity of oral care were found to be associated with parents' knowledge and practices. To conclude, parents had moderate levels of knowledge and practices regarding early dental caries prevention in preschool children. Further studies and interventions should be performed to improve parental knowledge and practices that could enhance the oral health of children.
    MeSH term(s) Child, Preschool ; Humans ; Cross-Sectional Studies ; Dental Caries/prevention & control ; Dental Caries Susceptibility ; Health Knowledge, Attitudes, Practice ; Oral Hygiene/education ; Parents ; Vietnam
    Language English
    Publishing date 2023-10-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711781-9
    ISSN 2296-2565 ; 2296-2565
    ISSN (online) 2296-2565
    ISSN 2296-2565
    DOI 10.3389/fpubh.2023.1254479
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Multilevel and amplified effects of COVID-19 pandemic on health workers

    Bach Xuan Tran / Giang Thu Vu / Carl A. Latkin / Roger C.M. Ho

    The Lancet Regional Health. Western Pacific, Vol 23, Iss , Pp 100478- (2022)

    2022  

    Keywords Public aspects of medicine ; RA1-1270
    Language English
    Publishing date 2022-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Novel Projection Schemes for Graph-Based Light Field Coding.

    Bach, Nguyen Gia / Tran, Chanh Minh / Duc, Tho Nguyen / Tan, Phan Xuan / Kamioka, Eiji

    Sensors (Basel, Switzerland)

    2022  Volume 22, Issue 13

    Abstract: In light field compression, graph-based coding is powerful to exploit signal redundancy along irregular shapes and obtains good energy compaction. However, apart from high time complexity to process high dimensional graphs, their graph construction ... ...

    Abstract In light field compression, graph-based coding is powerful to exploit signal redundancy along irregular shapes and obtains good energy compaction. However, apart from high time complexity to process high dimensional graphs, their graph construction method is highly sensitive to the accuracy of disparity information between viewpoints. In real-world light field or synthetic light field generated by computer software, the use of disparity information for super-rays projection might suffer from inaccuracy due to vignetting effect and large disparity between views in the two types of light fields, respectively. This paper introduces two novel projection schemes resulting in less error in disparity information, in which one projection scheme can also significantly reduce computation time for both encoder and decoder. Experimental results show projection quality of super-pixels across views can be considerably enhanced using the proposals, along with rate-distortion performance when compared against original projection scheme and HEVC-based or JPEG Pleno-based coding approaches.
    Language English
    Publishing date 2022-06-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s22134948
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Antibiotic resistance of

    Tran-Quang, Khai / Nguyen-Thi-Dieu, Thuy / Tran-Do, Hung / Pham-Hung, Van / Nguyen-Vu, Trung / Tran-Xuan, Bach / Larsson, Mattias / Duong-Quy, Sy

    Frontiers in public health

    2023  Volume 11, Page(s) 1110903

    Abstract: Background: Streptococcus pneumoniae: Methods: This was a cross-sectional descriptive study. Nasopharyngeal aspiration specimens from children were cultured, isolated, and examined for : Results: Eighty-nine strains of : Conclusion: ... ...

    Abstract Background: Streptococcus pneumoniae
    Methods: This was a cross-sectional descriptive study. Nasopharyngeal aspiration specimens from children were cultured, isolated, and examined for
    Results: Eighty-nine strains of
    Conclusion: Streptococcus pneumoniae
    MeSH term(s) Child ; Humans ; Anti-Bacterial Agents/pharmacology ; Ceftriaxone ; Cross-Sectional Studies ; Drug Resistance, Microbial ; Penicillins ; Pneumonia ; Southeast Asian People ; Streptococcus pneumoniae/genetics ; Pneumonia, Pneumococcal/drug therapy ; Pneumonia, Pneumococcal/genetics ; Pneumonia, Pneumococcal/physiopathology ; Pneumonia, Pneumococcal/virology
    Chemical Substances Anti-Bacterial Agents ; Ceftriaxone (75J73V1629) ; Penicillins
    Language English
    Publishing date 2023-06-13
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2711781-9
    ISSN 2296-2565 ; 2296-2565
    ISSN (online) 2296-2565
    ISSN 2296-2565
    DOI 10.3389/fpubh.2023.1110903
    Database MEDical Literature Analysis and Retrieval System OnLINE

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