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  • 1
    In: Tạp chí Dinh dưỡng và Thực phẩm, Hoi Dinh duong VietNam, Vol. 18, No. 2E ( 2022-09-22), p. 24-33
    Abstract: Aims: The study was conducted to (i) determine the effectiveness of the local-based food security intervention in improving the knowledge and practice of mothers in infant and young child feeding (IYCF) practices, and (ii) assess the effectiveness of the intervention in improving the nutritional status of children under five years in two communes in Lao Cai province. Methods: The open community intervention was conducted from 2014 to 2016 on all children under five years old and their primary caregivers in Thao Chu Phin and Ban Pho commune, Lao Cai province. Care Group consisted of 10-12 mothers/primary caregivers, and Village Kitchen consisted of a group of women in the village, were established and met weekly to enhance rice powder production and peer communication activities in the communes. All 150 and 194 pairs of child-primary caregiver at baseline and the end of the intervention, respectively were assessed for children’s weight and height, and primary caregivers’ knowledge, attitude, and practices on IYCF. Results: The prevalence of stunting significantly reduced at the conclusion of the intervention, from 59.3 to 43.5% in Ban Pho commune (p 〈 0.01) and from 73.3% to 53.0% in Thao Chu Phin commune (p 〈 0.001). Anthropometric indicators, except for weight, improved at the end of the study (all p 〈 0.05). The proportion of primary caregivers who had correct knowledge about food diversity for complementary feeding significantly increased from 15.5% to 56.9% (p 〈 0.001). More food was given to children for complementary feeding (all p 〈 0.05). Conclusions: The intervention of local-based food security and enhancing group communication was effective in improving the knowledge, attitude, and practice of primary caregivers on IYCF, anthropometric ind icators, and in reducing childhood stunting.
    Type of Medium: Online Resource
    ISSN: 1859-0381 , 1859-0381
    URL: Issue
    Language: Unknown
    Publisher: Hoi Dinh duong VietNam
    Publication Date: 2022
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  • 2
    In: Critical Care, Springer Science and Business Media LLC, Vol. 27, No. 1 ( 2023-07-01)
    Abstract: Interpreting point-of-care lung ultrasound (LUS) images from intensive care unit (ICU) patients can be challenging, especially in low- and middle- income countries (LMICs) where there is limited training available. Despite recent advances in the use of Artificial Intelligence (AI) to automate many ultrasound imaging analysis tasks, no AI-enabled LUS solutions have been proven to be clinically useful in ICUs, and specifically in LMICs. Therefore, we developed an AI solution that assists LUS practitioners and assessed its usefulness in  a low resource ICU. Methods This was a three-phase prospective study. In the first phase, the performance of four different clinical user groups in interpreting LUS clips was assessed. In the second phase, the performance of 57 non-expert clinicians with and without the aid of a bespoke AI tool for LUS interpretation was assessed in retrospective offline clips. In the third phase, we conducted a prospective study in the ICU where 14 clinicians were asked to carry out LUS examinations in 7 patients with and without our AI tool and we interviewed the clinicians regarding the usability of the AI tool. Results The average accuracy of beginners’ LUS interpretation was 68.7% [95% CI 66.8–70.7%] compared to 72.2% [95% CI 70.0–75.6%] in intermediate, and 73.4% [95% CI 62.2–87.8%] in advanced users. Experts had an average accuracy of 95.0% [95% CI 88.2–100.0%] , which was significantly better than beginners, intermediate and advanced users ( p   〈  0.001). When supported by our AI tool for interpreting retrospectively acquired clips, the non-expert clinicians improved their performance from an average of 68.9% [95% CI 65.6–73.9%] to 82.9% [95% CI 79.1–86.7%] , ( p   〈  0.001). In prospective real-time testing, non-expert clinicians improved their baseline performance from 68.1% [95% CI 57.9–78.2%] to 93.4% [95% CI 89.0–97.8%] , ( p   〈  0.001) when using our AI tool. The time-to-interpret clips improved from a median of 12.1 s (IQR 8.5–20.6) to 5.0 s (IQR 3.5–8.8), ( p   〈  0.001) and clinicians’ median confidence level improved from 3 out of 4 to 4 out of 4 when using our AI tool. Conclusions AI-assisted LUS can help non-expert clinicians in an LMIC ICU improve their performance in interpreting LUS features more accurately, more quickly and more confidently.
    Type of Medium: Online Resource
    ISSN: 1364-8535
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2051256-9
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  • 3
    Online Resource
    Online Resource
    Viet Nam National University Ho Chi Minh City ; 2009
    In:  Science and Technology Development Journal Vol. 12, No. 17 ( 2009-11-15), p. 106-110
    In: Science and Technology Development Journal, Viet Nam National University Ho Chi Minh City, Vol. 12, No. 17 ( 2009-11-15), p. 106-110
    Abstract: A histological study of callus regeneration of black pepper using leaf transverse thin cell layer (TCL) explants was accomplished. The undifferentiated cells culture of callus were found to differentiate into vascular nodules called meristemoids, which then develop into xylem elements, especially tracheids. Culturing in the shooting medium, these nodules differentiated into shoot apical meristem.
    Type of Medium: Online Resource
    ISSN: 1859-0128
    Language: Unknown
    Publisher: Viet Nam National University Ho Chi Minh City
    Publication Date: 2009
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  • 4
    In: Advances in Natural Sciences: Nanoscience and Nanotechnology, IOP Publishing, Vol. 12, No. 1 ( 2021-03-01), p. 013001-
    Abstract: In this study, nano Cu 2 O-Cu/alginate was synthesised by the chemical reduction of tetra-amminecopper (II) ion complexes soluble using hydrazine as a reducing agent and alginate as a stabiliser. The influence of various copper ion concentrations on particle size and morphology of produced nano Cu 2 O-Cu/alginate was investigated. The transmission electron microscopy (TEM) analysis and X-ray diffraction (XRD) measurement revealed that the synthesised nano Cu 2 O-Cu/alginate was mostly composed of Cu 2 O-Cu in the form of a Cu 2 O@Cu core–shell structure with particle sizes of 4.2, 5.3, and 8.4 nm for 60, 80, and 100 mM of copper ion initial concentrations, respectively. The obtained nano Cu 2 O-Cu/alginate exhibited high antibacterial activity against Xanthomonas oryzae pv. Oryzae ( Xanthomonas OO ). The results showed that the nano Cu 2 O-Cu/alginate containing 30 mg.l −1 of copper ions completely inhibited the growth of Xanthomonas OO bacteria, which are responsible for the rice leaf blight disease. Nano Cu 2 O-Cu/alginate materials can be used as a fungicide to replace toxic agro-chemicals and potentially applied to the development of sustainable agricultural production.
    Type of Medium: Online Resource
    ISSN: 2043-6262
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2563789-7
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  • 5
    Online Resource
    Online Resource
    Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications) ; 2017
    In:  Vietnam Journal of Chemistry Vol. 55, No. 4 ( 2017-09-21)
    In: Vietnam Journal of Chemistry, Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), Vol. 55, No. 4 ( 2017-09-21)
    Type of Medium: Online Resource
    ISSN: 0866-7144 , 0866-7144
    Language: Unknown
    Publisher: Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
    Publication Date: 2017
    detail.hit.zdb_id: 2414570-1
    detail.hit.zdb_id: 2970999-4
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  • 6
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2019
    In:  Agricultural Research Vol. 8, No. 2 ( 2019-6), p. 184-190
    In: Agricultural Research, Springer Science and Business Media LLC, Vol. 8, No. 2 ( 2019-6), p. 184-190
    Type of Medium: Online Resource
    ISSN: 2249-720X , 2249-7218
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2019
    detail.hit.zdb_id: 2668414-7
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  • 7
    In: Physical Chemistry Chemical Physics, Royal Society of Chemistry (RSC)
    Abstract: NaGdF4 nanocrystalline doped with different concentrations of Eu3+ ion have been synthesized by the precipitation method. The structure and morphology of the material were investigated through the measurements of the XRD patterns and SEM images, respectively. Optical properties of the NaGdF4:Eu3+ nanocrystalline were studied in the frame of the Judd-Ofelt theory in which the Ωλ parameters were calculated by two methods: the traditional method using the luminescence spectra and the self-referenced method using the luminescence excitation spectra. In NaGdF4:Eu3+ nanocrystalline, the Gd3+ ions in the lattice act as the sensitizer centers for the luminescence of Eu3+ ions under excitation at 272 and 310 nm. The energy transfer process from Gd3+ to Eu3+ causes the emission enhancement of Eu3+ ions. Upon excitation by the characteristic wavelengths of Gd3+, the luminescence efficiency of the Eu3+ ions in NaGdF4:Eu3+ is affected by two mechanisms which are the emission of Gd3+ ions and the trapping of excited energy by the Eu3+ ions. The energy transfer between Eu3+ ions was also discussed in detail. This process leads to the enhancement of the luminescence bands originating from the 5D0 level. The dominant interaction between the Eu3+ ions in the energy transfer process is the dipole-dipole mechanism which is determined based on fitting the decay curve of the 5D2 level to the Inokuti-Hirayama model.
    Type of Medium: Online Resource
    ISSN: 1463-9076 , 1463-9084
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2023
    detail.hit.zdb_id: 1476283-3
    detail.hit.zdb_id: 1476244-4
    detail.hit.zdb_id: 1460656-2
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  • 8
    Online Resource
    Online Resource
    Agricultural Research Communication Center ; 2020
    In:  Indian Journal Of Agricultural Research , No. Of ( 2020-11-17)
    In: Indian Journal Of Agricultural Research, Agricultural Research Communication Center, , No. Of ( 2020-11-17)
    Abstract: Background: Rice blast disease due to Pyricularia oryzae fungus is one of the most destructive ones for rice, causing serious losses in yield and quality in Vietnam and other countries. Studying to develop new fungicides to control the fungal disease effectively is essential.Methods: The sodium alginate-stabilized Cu-Cu2O nanocolloidal solution with a size of about 4 nm and the Cu concentration of 5,000 mg/L was prepared by chemical method. The antifungal activity in vitro against P. oryzae and the ability to control the rice blast disease in the greenhouse of nano Cu-Cu2O/alginate were assessed.Result: The nano Cu-Cu2O/alginate exhibited highly fungal activity with the IC50 of 17.8 mg Cu /L. The disease severity of nano Cu-Cu2O/alginate treatments was in the range of 9.38 - 18.54% in comparison with 47.57% of the untreated control. The grain yield of rice plants treated with nano Cu-Cu2O/alginate increased compared with that of the untreated control, and the Cu content in polished rice was almost the same as that of usually cultured polished rice. Thus, the nano Cu-Cu2O/alginate can be used in agriculture as a plant fungicide, especially for rice cultivation.
    Type of Medium: Online Resource
    ISSN: 0976-058X , 0367-8245
    Language: Unknown
    Publisher: Agricultural Research Communication Center
    Publication Date: 2020
    detail.hit.zdb_id: 2569845-X
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