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Spatiotemporal Trend Analysis of Precipitation Extremes in ho chi minh city, Vietnam During 1980–2017

International Journal of Disaster Risk Science 2021年第1期12卷 131-146页

作者： Nguyen Trong Quan Dao Nguyen Khoi Nguyen Xuan hoan Nguyen Ky Phung Thanh Duc Dang Faculty of Environmental and Food Engineering Nguyen Tat Thanh UniversityHo Chi Minh City 700000Vietnam Faculty of Environment University of ScienceHo Chi Minh City 700000Vietnam Vietnam National University Ho Chi Minh City 700000Vietnam ho chi minh city University of Food Industry Ho Chi Minh City 700000Vietnam Institute for Computational Science and Technology Ho Chi Minh City 700000Vietnam Engineering Systems and Design Pillar Singapore University of Technology and DesignTampines 487372Singapore

In this study,the spatiotemporal variability of trends in extreme precipitation events in ho chi minh city during the period 1980–2017 was analyzed based on several core extreme precipitation indices(Rx1 day,Rx5 day,CDD,CWD,R20 mm,R25 mm,R95 p,and SDII).The nonparametric Mann–Kendall and Sen’s slope methods were used to compute the statistical strength,stability,and magnitude of trends in annual rainfall,as well as the extreme precipitation *** found that 64%of the stations had statistically significant upward trends in yearly rainfall,with high magnitudes frequently observed in the northern and southern regions of the *** the extreme precipitation indices,only SDII and R25 mm showed dominantly significant ***,there were increasing trends in the frequency and duration at the southern and central regions of the city during the study ***,El Ni?o-Southern Oscillation and Pacific Decadal Oscillation positively correlated with the duration and negatively correlated with the intensity and frequency of extreme ***,water management plans should be adjusted appropriately to reduce the severe impacts of precipitation extremes on communities and ecosystems.

关键词： Spatiotemporal trend Extreme precipitation Extreme precipitation indices ho chi minh city

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Fundraising Capacity of HIV/AIDS Community-Based Organizations in 3 Years (2017-2019) in ho chi minh city, Vietnam

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World Journal of AIDS 2020年第3期10卷 186-194页

作者： Tran chi Thanh Pham Duc Trinh Nguyen Duc Thanh Linus Olson Mattias Larsson Nguyen Tat Thanh University HCMC Vietnam Dinh Tien hoang Institute of Medicine Hanoi Vietnam College of Foreign Economic Relation HCMC Vietnam Hanoi University of Public Health Hanoi Vietnam Department of Women’s and children’s Health Karolinska Institutet Stockholm Sweden Department of Global Public Health Karolinska Institutet Stockholm Sweden

HIV/AIDS is still an important public health issue in Vietnam and other developing countries. In Vietnam, Community-based organizations (CBOs) were officially considered as the key partners to approach vulnerable groups at high risks of HIV infection since 2010. Funds for HIV/AIDS prevention and control are facing difficulties due to rapid reduction by international organizations, while domestic funding has not yet met the demand, especially funding for prevention and communication activities. Our study aimed to assess the fundraising capacity of several CBOs in ho chi minh city, Vietnam and analyze the challenges that they are facing now and in future in their work of HIV/AIDS management for community. The 03 typical and representative CBOs (G3VN, Smile and Strong Ladies) were chosen in our cross-sectional descriptive study. The electronic questionnaire was about fundraising reports over 3 years (2017-2019), organization structure (staff, mission, strategies) and the advantages and disadvantages in fundraising. Funds received over the year increased in total, but unstable in each projects. To have more funds, CBOs must invest time and money to have professional staff in fundraising and writing proposals. To meet requirement and survive, some CBO shifted to social enterprises and faced many difficulties in laws when being treated like profit companies. In Vietnam context, the key challenges which affect the role of funding are including: 1) Legal status;2) Small scale;3) Capacity of fundraising (finding calls, writing competence proposals);4) Fewer funds on HIV/AIDS. In future, we should pay attention in scaling up and building fundraising capacity for CBOs in order to help them in applying for international funds in community projects or even in HIV/AIDS research for CBOs, social enterprises in the context of funds for nation-level phased out of Vietnam.

关键词： CBO HIV/AIDS Fundraising ho chi minh city Vietnam

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The Cross Sectional Study on the Association between Sexual Awareness and Cognitive Social Capital among High School Students in ho chi minh city, Vietnam

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Advances in Sexual Medicine 2016年第3期6卷 33-39页

作者： Kaori Watanabe National College of Nursing Japan

Purpose: We aimed to reveal the association between cognitive social capital and sexual awareness among high school students in ho chi minh city, Vietnam, where adolescent premarital sex is considered to be wide-spreading as consequence of socioeconomic changes, in comparison to our previous study in Hanoi, 2012. Methods: We conducted a questionnaire-based survey and a cross sectional study in late 2014, with 2051 eleventh graders at three high schools in ho chi minh city. Complete data was received from 1935 respondents (94.3%). We assessed basic attributes, sexual knowledge, sexual awareness, sexual experience of peers, cognitive social capital such as a sense of community belonging, and Rosenberg Self-Esteem score. After the independent t-test and multiple logistic regression analyses on sexual awareness were performed assigning trivalent Rosenberg Self-Esteem score, sexual knowledge, and sexual experience of peers as independent variables (model 1), followed by analysis adjusted for cognitive social capital (model 2). This study was approved by Japanese Red Cross Akita College of Nursing (No. 24-003). Results: Of 1935 respondents, 99.9% were 16 or 17 years old and mostly from nuclear families (71.1%). Of all participants, 45.8% in males and 49.4% in females correctly answered on sexual knowledge, 47.6% of males and 28.3% of females accepted premarital sex, 60.0% of male and 65.0% of females knew peers with sexual intercourse experience, and 78.1% of males and 79.1% of females agreed with a sense of community belonging. When multiple logistic regression analyses performed, in model 1, sexual awareness was significantly associated with Rosenberg Self-Esteem score in female. In model 2, above association disappeared but significant association was found between sexual awareness and cognitive social capital in both sexes OR (95% CI), male 1.39 (1.05 - 1.84), female 1.99 (1.49 - 2.65). Discussion: The conservative traditional culture in both Hanoi and ho chi minh Cit

关键词： Cognitive Social Capital Sexual Behavior Sexual Awareness Self-Esteem Adolescent High School Student ho chi minh city Vietnam

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The Mekong Delta in Vietnam and Cambodia Is Subsiding and in Need of Remediation

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Open Journal of Soil Science 2022年第5期12卷 171-192页

作者： Kenneth R. Olson Department of Natural Resources and Environmental Sciences College of Agricultural Consumer and Environmental Sciences University of Illinois Urbana USA

Land subsidence and rising sea levels could result in 40% of the Mekong Delta being covered by the South china Sea within the next few decades. The impact of groundwater withdrawal, in the SE Asia mega deltas of Ganges-Brahmaputra Delta, Jakarta Delta, Chao Phraya Delta and Mekong Delta, is a major reason these deltas are sinking. There are lessons to be learned from both failures and successful remediation efforts in other mega deltas as Vietnam policy makers seek to address Mekong Delta subsidence. Without a significant Vietnam government remediation and mitigation efforts, land subsidence in the Mekong Delta will continue. Land subsidence has occurred in the Mekong Delta as a result of the retention of sediments behind the china and Laos dams on the main stem of the Mekong River, reduced flooding peaks, climate change, sea level rise, storm surges and flooding. In addition, subsidence has been exascerbated by compaction, groundwater extraction for shrimp ponds, rice paddies and the household and drinking water needs of approximately 20 million people living on the Mekong Delta in Vietnam and Cambodia. The Mekong Delta shorelines are eroding and significant land areas, including wetlands, are becoming open water. The wetlands and land mass are also subsiding as a result of the reduction in sediment deposition. Large dams on the mainstem of the Mekong River in china and Laos have reduced peak flows and reduced sediment loads in lower Mekong River. Population and industrial growth have increased groundwater extraction and salt water intrusion as the delta subsides leading to consolidation and reduction in the current plumes flowing into the South china Sea. The primary objective of this paper is to assess the impact of groundwater withdrawals for rice paddies, shrimp ponds, aquaculture, industry and drinking water on Mekong Delta land subsidence. The secondary objective is to identify mitigation efforts used in other Southeast Asia deltas and make remediation recomm

关键词： Dykes ho chi minh city Jakarta Mekong Delta Sea Walls Subsidence Sediments

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Saigon River Valley: A Navigation, Trade, Mitigation, Invasion, Liberation, and Unification Pathway

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Open Journal of Soil Science 2023年第2期13卷 46-82页

作者： Kenneth R. Olson College of Agricultural Consumer and Environmental Sciences University of Illinois Urbana USA

The Saigon River is located in southern Vietnam with headwaters starting in southeastern Cambodia. The river flows southeast for about 225 km to the South china Sea. Most readers of Vietnam’s history know about the American-Vietnam War (1965-1973). however, centuries before that time, Vietnam fought with the chinese, the Khmers, the Chams and the Mongols. The history of Vietnam begins in the Red River Delta, where farmers first cultivated rice. A millenia of struggle against the chinese then followed. The Saigon River Valley was the pathway used by the North Vietnamese Army (NVA) to get from the ho chi minh Trail in Cambodia to Saigon during the 1968 Tet Offensive. The NVA dug Cu chi and Iron Triangle soil tunnels near Cu chi in the Old Alluvium terrace to hide from American Forces and Air Force bombers. In 1962, the Tan Son Nhut Air Force base on the northern edge of Saigon received the first shipments of Agent Blue, the arsenic based herbicide, used to destroy the rice crop. The most dioxin TCDD and arsenic contaminated site in Vietnam was Bien hoa Air Force base on the Saigon River just 30 km northeast east of ho chi minh city. The adjacent Bien hoa city has a population of over 800,000. The Port of ho chi minh city is the most significant river port in Vietnam and Southeast Asia. The river is navigable by ships which draft up to 9 m. Vietnam only became a united country in the 19th century. Its independence was soon affected by French colonialism and then the destructive American intervention in the Vietnam War. The Vietnam War Archive no. 2 in ho chi minh city houses residual correspondence between the Republic of Vietnam (RV) President Diem’s administration and US President Kennedy’s administration related to the Khai Huang program (hamlet strategy). In addition, the archive contains some of the tactical herbicide spray records of the RV military for the Mekong Delta. The primary objective this study is to document the role that the Saigon River Valley played,

关键词： Saigon River ho chi minh city Port of Saigon Cu chi Soil Tunnels Iron Triangle Soil Tunnel Khai Huang Bien hoa Cu chi Nha Be Base

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Psychometric properties of questionnaires to measure social ecological influences in Vietnamese children

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Sports Medicine and Health Science 2019年第1期1卷 40-43页

作者： Quyen G.To Danielle Gallegos Dung V.Do Hanh TM.Tran Kien G.To Lee Wharton Stewart G.Trost School of Exercise and Nutrition Sciences Queensland University of TechnologyBrisbaneAustralia School of Exercise and Nutrition Sciences Institute for Health and Biomedical Innovation at QLD Centre for Children's Health ResearchQueensland University of TechnologyBrisbaneAustralia Faculty of Public Health University of Medicine and PharmacyHo Chi Minh CityVietnam Nutrition Center Ho Chi Minh CityVietnam

Physical activity data in primary school-aged children are limited in *** tools to measure social ecological influences on physical activity are validated in English,they are not available in *** to cultural and contextual differences,their psychometric properties need to be *** scales were translated into Vietnamese and evaluated for internal consistency and test re-test reliability,including self-efficacy,perceived social influences,and beliefs self-administered by students,and parental support for physical activity and parental perceived safety of the neighbourhood,self-administered by *** to the original scales,two items from the parental perceived neighbourhood safety were removed due to the cultural *** item of the self-efficacy scale was also removed as it correlated poorly with the other items in the scale at both *** adjusted scales were found to be reliable and appropriate for use among students and parents to measure social ecological influences on physical activity in the Vietnamese context.

关键词： Physical activity Exercise Social ecological influence ho chi minh city Elementary school

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Solutions for Sustainable Economic Development inho chi minh city

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Management Studies 2020年第1期8卷 74-83页

作者： Bui Ngoc Hien ho chi minh city Cadre Academy Ho Chi Minh CityVietnam

Sustainable urban development is becoming the top concern of the nations in making and implementing the development policy *** urban development is a harmonious,effective development process with three pillars:economic development,social inclusion,and environmental management *** is a rapidly urbanizing *** process makes Vietnam’s cities face many major problems and challenges,especially sustainable economic *** chi minh city is Vietnam’s largest *** is the dynamic city with the fastest socio-economic development rate of *** development of ho chi minh city plays an important role in the overall development of the whole ***,in the assessments of the authorities and experts,ho chi minh city is growing slowly and facing many big *** on the analysis of the city’s potentials and advantages as well as the difficulties and challenges of the new development context,this paper recommends groups of solutions for sustainable economic development in ho chi minh city in the next decades.

关键词： sustainable urban development sustainable economic development ho chi minh city

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A Study on the Selection of the Logistics Centre Location—Vietnam-Based Logistics Sector

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Management Studies 2020年第2期8卷 121-127页

作者： JSC Sai Gon Hiep Phuoc Port ho chi minh city Viet Nam ho Thi Thu hoa Nguyen Van Khoang Bui Thi Bich Lien Tran Quang Dao To Thi Hang Le Van Thanh To Thi Hang ho chi minh city University of Transport Ho Chi Minh CityViet Nam JSC Sai Gon Hiep Phuoc Port Ho Chi Minh CityViet Nam

Logistics can be considered as the major drive of the *** centres play a significant role in the entire logistics networks from the point of materials sourcing to the point of last mile *** efficiency of a logistics network depends on the existence of logistics centres to connect and integrate entire logistics *** article discusses the importance of selection of the logistics centre location and recommends the procedure to specify the appropriate logistics centre location as a case of Vietnam-based logistics sector.

关键词： logistics centre Vietnam ho chi minh city location

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