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  1. Article ; Online: Investigation of Influential Factors of Intention to Adopt Electric Vehicles for Motorcyclists in Vietnam

    Thanh Tung Ha / Thanh Chuong Nguyen / Sy Sua Tu / Minh Hieu Nguyen

    Sustainability, Vol 15, Iss 8765, p

    2023  Volume 8765

    Abstract: 1) Background and aims: The exploration of the intention to adopt electric vehicles has been intensively studied in developed countries where passenger cars are the most common private motorized vehicle. However, the same is not true for motorcycle- ... ...

    Abstract (1) Background and aims: The exploration of the intention to adopt electric vehicles has been intensively studied in developed countries where passenger cars are the most common private motorized vehicle. However, the same is not true for motorcycle-dependent countries such as Vietnam. This study aimed to advance our understanding of the determinants of motorcyclists’ intention to use electric vehicles (i.e., electric passenger cars) in settings where the motorcycle is the dominant mode. (2) Data and methods: The partial least squares structural equation modeling (PLS-SEM) and the data from 330 motorcycle owners in Hanoi, Vietnam, were utilized to empirically test a research framework formulated based on the push–pull–mooring migration model. (3) Results: The results indicated that the push factor was formulated by safety concerns and environmental concerns while the pull factor was established by perceived usefulness, perceived ease of use, and financial incentive policy. Both the push factor and the pull factor significantly contributed to the adoption intention but the effect of the latter was stronger. Knowledge did not affect the intention; however, it moderated the link between the pull factor and the intention. For the respondents with a higher level of knowledge, the positive impact of the pull factor on the intention was lower (compared to those with a lower level of knowledge). (4) Conclusions: Based on the findings of the associated factors, policy implications were suggested to increase the prevalence of electric vehicles. Although the theoretical and practical contributions of this study may be significant to the literature regarding developing countries, more research is needed to validate and extend them.
    Keywords electric vehicles ; motorcycles ; electric passenger cars ; Vietnam ; pull–pull–mooring ; knowledge ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 306
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Bus Crash Severity in Hanoi, Vietnam

    Thanh Chuong Nguyen / Minh Hieu Nguyen / Jimmy Armoogum / Thanh Tung Ha

    Safety, Vol 7, Iss 65, p

    2021  Volume 65

    Abstract: Recently, there has been an increasing interest in targeting the safety of bus operations worldwide; however, little is known about the determinants of the bus crash severity in developing countries. By estimating an ordered logit model using the bus- ... ...

    Abstract Recently, there has been an increasing interest in targeting the safety of bus operations worldwide; however, little is known about the determinants of the bus crash severity in developing countries. By estimating an ordered logit model using the bus-involved collision data in Hanoi (Vietnam), spanning the period from 2015 to 2019, this study investigates various factors associated with the crash severity. The results reveal that the severity risk increases for (1) large buses, (2) raining conditions, (3) evening or night, (4) sparse traffic, (5) non-urban areas, (6) roads with at least three lanes, (7) curved roads, (8) two-way roads without a physical barrier, (9) head-on collision, and (10) pedestrian-related crashes. Aside from confirming the crucial roles of a wide range of factors, this research has examined the effects of two determinants (traffic density and crash area) that have not been considered for the cases of developing countries previously. Based on the findings on the impacts of factors, a series of policy recommendations regarding improving road conditions in non-urban areas, promoting walking infrastructure, reminders of high-risk situations for drivers, safety notes when improving bus service quality, and recording bus-related crashes are proposed.
    Keywords bus crash ; bus safety ; severity ; crash modeling ; bus collision ; Vietnam ; Industrial safety. Industrial accident prevention ; T55-55.3 ; Medicine (General) ; R5-920
    Subject code 380
    Language English
    Publishing date 2021-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: The Influence of Dopant Concentration on Optical-Electrical Features of Quantum Dot-Sensitized Solar Cell.

    Huu Phuc, Dang / Thanh Tung, Ha / Nguyen, Van-Cuong / Hanh Nguyen Thi, My

    Molecules (Basel, Switzerland)

    2021  Volume 26, Issue 10

    Abstract: In this study, ... ...

    Abstract In this study, TiO
    Language English
    Publishing date 2021-05-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules26102865
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Influence of Dietary Fucoidan Supplementation on Growth and Immunological Response of Juvenile Marsupenaeus japonicus

    Traifalgar, RexFerdinand / Kira, Haruka / ThanhTung, Ha / RaafatMichael, Fady / Laining, Asda / Yokoyama, Saichiro / IShikawa, Manabu / Koshio, Shunsuke / Serrano, AugustoE / Corre, Valeriano

    Journal of the World Aquaculture Society. 2010 May, v. 41, no. s2

    2010  

    Abstract: A feeding trial was conducted to evaluate the influence of dietary supplementation of Undaria pinnatifida fucoidan on growth performance and immunological response of juvenile Marsupenaeus japonicus. Four semipurified diets supplemented with graded ... ...

    Abstract A feeding trial was conducted to evaluate the influence of dietary supplementation of Undaria pinnatifida fucoidan on growth performance and immunological response of juvenile Marsupenaeus japonicus. Four semipurified diets supplemented with graded levels of fucoidan (0.0, 100, 500, and 1000 mg/kg diet) were fed to juvenile shrimp for 8 wk. Each diet was fed to three replicate groups of shrimp. At the end of the feeding trial, enhanced growth performance was generally observed in shrimp fed the fucoidan-supplemented diets when compared with the shrimp fed the control diet. Significantly higher weight gains, specific growth rates, protein retentions, and lower feed conversion ratios were observed in treatment groups fed the 500 and 1000 mg/kg dietary fucoidan supplementation when compared with the treatment groups receiving 100 mg/kg fucoidan supplementation and the control diet. Total hemocyte counts, phenol oxidase activity, and serum antibacterial activity were also significantly enhanced in shrimp fed diets supplemented with 500 and 1000 mg/kg fucoidan supplementation. These results suggest that U. pinnatifida fucoidan at a dose of 500 mg/kg diet could be used as an immunostimulant and a growth-promoting dietary supplement for juvenile M. japonicus.
    Keywords shrimp culture ; Marsupenaeus japonicus ; animal feeding ; fucoidan ; Undaria pinnatifida ; feed supplements ; animal growth ; immunostimulants ; immune response ; nutrient retention ; feed conversion ; hemocytes ; enzyme activity ; juveniles ; blood serum ; antibacterial properties ; monophenol monooxygenase ; weight gain
    Language English
    Dates of publication 2010-05
    Size p. 235-244.
    Publisher Blackwell Publishing Ltd
    Publishing place Oxford, UK
    Document type Article
    Note In the special issue: Aquaculture nutrition.
    ZDB-ID 2233509-2
    ISSN 1749-7345 ; 0893-8849
    ISSN (online) 1749-7345
    ISSN 0893-8849
    DOI 10.1111/j.1749-7345.2010.00363.x
    Database NAL-Catalogue (AGRICOLA)

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