193 research outputs found

    Technical Feasibility of Cultivating Local Seaweed Species in Inland Saline Water of Western Australia

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    This research investigated the technical feasibility of cultivating local seaweed species from Perth region in potassium-fortified inland saline waters (ISW). Different levels of potassium fortification into the ISW were essential for their culture and out of six seaweed species studied, Ulva lactuca, Lomentaria catenata and two Sargassum spp. could successfully be cultured in 33 to 100% potassium-fortified ISW. Seasonality, nutrient enrichments, pH and temperature were able to influence different seaweed species to different degrees

    Chemical composition and antimicrobial activity of the essential oil from leaves of Magnolia coriacea (Hung T. Chang & B. L. Chen) figlar growing in Vietnam

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    Leaf essential oil of Magnolia coriacea (Hung T. Chang B. L. Chen) Figlar growing wild in the Bat Dai Son Nature Reserve, Ha Giang Province, Viet Nam was obtained by hydrodistillation and its chemical composition was analyzed using GC/MS. In total, 45 compounds were detected in the essential oil, accounting for 87.1% of the oil, in which 37 compounds were identified accounting for 66.9%. Bicyclogermacrene (12.6%) and spathulenol (17.0%) were the main components of the leaf essential oil of M. coriacea. Antimicrobial activity of the essential oil sample was tested against three microorganism strains using an agar disk diffusion method. The results show that the inhibitory zone diameters ranged from 8.5 to 20.5 mm. Median inhibitory concentration (IC50) and minimum inhibitory concentration (MIC) of the essential oil was determined using microdilution broth susceptibility assay against seven test microorganism strains. Bacillus subtilis had the highest sensitivity with IC50 and MIC values of 185.9 and 512 µg/mL, respectively. 

    Shaping the Health Policy Agenda: The Case of Safe Motherhood Policy in Vietnam

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    Background: Maternal health remains a central policy concern in Vietnam. With a commitment to achieving the Millennium Development Goal (MDG) 5 target of maternal mortality rate (MMR) of 70/100 000 by 2015, the Ministry of Health (MoH) issued the National Plan for Safe Motherhood (NPSM) 2003-2010. In 2008, reproductive health, including safe motherhood (SM) became a national health target program with annual government funding. Methods:A case study of how SM emerged as a political priority in Vietnam over the period 2001-2008, drawing on Kingdon’s theory of agenda-setting was conducted. A mixed method was adopted for this study of the NPSM. Results:Three related streams contributed to SM priority in Vietnam: (1) the problem of high MMR was officially recognized from high-quality research, (2) the strong roles of policy champion from MoH in advocating for the needs to reducing MMR as well as support from government and donors, and (3) the national and international events, providing favorable context for this issue to emerge on policy agenda. Conclusion: This paper draws on the theory of agenda-setting to analyze the Vietnam experience and to develop guidance for SM a political priority in other high maternal mortality communities

    Vai trò của nhóm nghiên cứu đối với việc công bố quốc tế trong lĩnh vực khoa học tự nhiên và kỹ thuật

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    Công bố khoa học được xem là một trong những thước đo trình độ phát triển khoa học công nghệ và sức cạnh tranh của mỗi một quốc gia do đó nó luôn là chủ đề gây chú ý đối với toàn xã hội trong những năm gần đây. Nâng cao số lượng và chất lượng nghiên cứu khoa học, công bố quốc tế được xem là một trong những yếu tố quan trọng quyết định đến sự hình thành và phát triển của các nhóm nghiên cứu cũng như quyết định cho sự thành công của các hoạt động khoa học công nghệ của bất kỳ cơ quan tổ chức nghiên cứu, giáo dục nào. Nghiên cứu này được thực hiện nhằm đánh giá vai trò của các nhóm nghiên cứu đối với việc công bố quốc tế riêng trong lĩnh vực khoa học tự nhiên và kỹ thuật

    Understanding the 'four directions of travel': qualitative research into the factors affecting recruitment and retention of doctors in rural Vietnam

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    <p>Abstract</p> <p>Background</p> <p>Motivation and retention of health workers, particularly in rural areas, is a question of considerable interest to policy-makers internationally. Many countries, including Vietnam, are debating the right mix of interventions to motivate doctors in particular to work in remote areas. The objective of this study was to understand the dynamics of the health labour market in Vietnam, and what might encourage doctors to accept posts and remain in-post in rural areas.</p> <p>Methods</p> <p>This study forms part of a labour market survey which was conducted in Vietnam in November 2009 to February 2010. The study had three stages. This article describes the findings of the first stage - the qualitative research and literature review, which fed into the design of a structured survey (second stage) and contingent valuation (third stage). For the qualitative research, three tools were used - key informant interviews at national and provincial level (6 respondents); in-depth interviews of doctors at district and commune levels (11 respondents); and focus group discussions with medical students (15 participants).</p> <p>Results</p> <p>The study reports on the perception of the problem by national level stakeholders; the motivation for joining the profession by doctors; their views on the different factors affecting their willingness to work in rural areas (including different income streams, working conditions, workload, equipment, support and supervision, relationships with colleagues, career development, training, and living conditions). It presents findings on their overall satisfaction, their ranking of different attributes, and willingness to accept different kinds of work. Finally, it discusses recent and possible policy interventions to address the distribution problem.</p> <p>Conclusions</p> <p>Four typical 'directions of travel' are identified for Vietnamese doctors - from lower to higher levels of the system, from rural to urban areas, from preventive to curative health and from public to private practice. Substantial differences in income from formal and informal sources all reinforce these preferences. While non-financial attributes are also important for Vietnamese doctors, the scale of the difference of opportunities presents a considerable policy challenge. Significant salary increases for doctors in hard-to-staff areas are likely to have some impact. However, addressing the differentials is likely to require broader market reforms and regulatory measures.</p

    EVALUATION OF BIODEGRADATION RATE CONSTANT (K₁) AND BOD POLLUTION IN THE LAKE SYSTEM OF HANOI

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    Joint Research on Environmental Science and Technology for the Eart

    Factors Affecting Intention to Transact by Electronic Payment in Supermarkets in Hanoi (Vietnam)

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    The study is conducted based on 391 observational samples in Hanoi with the context that Vietnam is promoting digital transformation in all aspects of life. Research has shown that: “Performance Expectancy”, “Effort Expectancy”, “Social Influence”, “Facility Conditions” and “Security and Privacy” have a positive impact on the e-payment intention of shoppers in supermarkets in Hanoi, especially Facility Condition is the most influential factor. In addition, the result also found that the age variable also acts as a crucial driver factor in the process of forming human intentions, while the gender variable has no impact on that process. The study of factors that can affect the intention of electronic payment contributes more theoretical basis in this field, as well as provide a more realistic view of the situation of using electronic payment in Vietnam in general, creating a driving force for the promotion of the development of electronic payment regularly in terms of frequency of application and diversity of application forms. In this study, the authors, besides inheriting domestic and foreign studies on electronic payment, also develop innovative points compared to previous studies. The study uses the new approach to study electronic payment through transactions in supermarkets and assess the role of demographic variables on user intention. Keywords: electronic payment, supermarket, solutions DOI: 10.7176/EJBM/13-11-02 Publication date:June 30th 202

    REALIZATION OF BROADBAND AND INDEPENDENT POLARIZATION METAMATERIAL PERFECT ABSORBER BASED ON THE THIRD-ORDER RESONANCE

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    In this report, we studied numerically and experimentally the electromagnetic properties of perfect MAs using ring-shaped structures at microwave frequencies. By creating a magnetic resonance, the ring structure confines electromagnetic energy at the first- and third-order resonances. And then, we leveraged the super-cell structures, which consist of different rings in one unit cell to obtain broadband absorption. The results showed that the absorption band of MA is broaden from 1.3 to 2.17 GHz when the number of rings in the unit cell increases from four to nine-ring

    Shaping the Health Policy Agenda: The Case of Safe Motherhood Policy in Vietnam

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    Background: Maternal health remains a central policy concern in Vietnam. With a commitment to achieving the Millennium Development Goal (MDG) 5 target of maternal mortality rate (MMR) of 70/100 000 by 2015, the Ministry of Health (MoH) issued the National Plan for Safe Motherhood (NPSM) 2003-2010. In 2008, reproductive health, including safe motherhood (SM) became a national health target program with annual government funding. Methods: A case study of how SM emerged as a political priority in Vietnam over the period 2001-2008, drawing on Kingdon’s theory of agenda-setting was conducted. A mixed method was adopted for this study of the NPSM. Results: Three related streams contributed to SM priority in Vietnam: (1) the problem of high MMR was officially recognized from high-quality research, (2) the strong roles of policy champion from MoH in advocating for the needs to reducing MMR as well as support from government and donors, and (3) the national and international events, providing favorable context for this issue to emerge on policy agenda. Conclusion: This paper draws on the theory of agenda-setting to analyze the Vietnam experience and to develop guidance for SM a political priority in other high maternal mortality communities
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