Sample records for central vietnam analysis

  1. Population dynamics of rice planthoppers, Nilaparvata lugens and Sogatella furcifera (Hemiptera, Delphacidae) in Central Vietnam and its effects on their spring migration to China.

    PubMed

    Hu, G; Lu, M-H; Tuan, H A; Liu, W-C; Xie, M-C; McInerney, C E; Zhai, B-P

    2017-06-01

    Rice planthopper (RPH) populations of Nilaparvata lugens and Sogatella furcifera periodically have erupted across Asia. Predicting RPH population dynamics and identifying their source areas are crucial for the management of these migratory pests in China, but the origins of the migrants to temperate and subtropical regions in China remains unclear. In particular, their early migration to China in March and April have not yet been explored due to a lack of research data available from potential source areas, Central Vietnam and Laos. In this study, we examined the population dynamics and migratory paths of N. lugens and S. furcifera in Vietnam and South China in 2012 and 2013. Trajectory modeling showed that in March and April in 2012 and 2013, RPH emigrated from source areas in Central Vietnam where rice was maturing to the Red River Delta and South China. Early migrants originated from Southern Central Vietnam (14-16°N), but later most were from Northern Central Vietnam (16-19°N). Analysis of meteorological and light-trap data from Hepu in April (1977-2013) using generalized linear models showed that immigration increased with precipitation in Southern Central Vietnam in January, but declined with precipitation in Northern Central Vietnam in January. These results determined that the RPH originate from overwintering areas in Central Vietnam, but not from southernmost areas of Vietnam. Winter precipitation, rather than temperature was the most important factor determining the number of RPH migrants. Based on their similar population dynamics and low population densities in Central Vietnam, we further speculated that RPH migrate to track ephemeral food resources whilst simultaneously avoiding predators. Migrations do not seem to be initiated by interspecific competition, overcrowding or host deterioration. Nevertheless, S. furcifera establishes populations earlier than N. lugens South China, perhaps to compensate for interspecific competition. We provide new information that could assist with forecasting outbreaks and implementing control measures against these migratory pests.

  2. Molecular evolution of respiratory syncytial virus subgroup A genotype NA1 and ON1 attachment glycoprotein (G) gene in central Vietnam.

    PubMed

    Yoshihara, Keisuke; Le, Minh Nhat; Nagasawa, Koo; Tsukagoshi, Hiroyuki; Nguyen, Hien Anh; Toizumi, Michiko; Moriuchi, Hiroyuki; Hashizume, Masahiro; Ariyoshi, Koya; Dang, Duc Anh; Kimura, Hirokazu; Yoshida, Lay-Myint

    2016-11-01

    We performed molecular evolutionary analyses of the G gene C-terminal 3rd hypervariable region of RSV-A genotypes NA1 and ON1 strains from the paediatric acute respiratory infection patients in central Vietnam during the 2010-2012 study period. Time-scaled phylogenetic analyses were performed using Bayesian Markov Chain Monte Carlo (MCMC) method, and pairwise distances (p-distances) were calculated. Bayesian Skyline Plot (BSP) was constructed to analyze the time-trend relative genetic diversity of central Vietnam RSV-A strains. We also estimated the N-glycosylation sites within G gene hypervariable region. Amino acid substitutions under positive and negative selection pressure were examined using Conservative Single Likelihood Ancestor Counting (SLAC), Fixed Effects Likelihood (FEL), Internal Fixed Effects Likelihood (IFEL) and Mixed Effects Model for Episodic Diversifying Selection (MEME) models. The majority of central Vietnam ON1 strains detected in 2012 were classified into lineage 1 with few positively selected substitutions. As for the Vietnamese NA1 strains, four lineages were circulating during the study period with a few positive selection sites. Shifting patterns of the predominantly circulating NA1 lineage were observed in each year during the investigation period. Median p-distance of central Vietnam NA1 strains was wider (p-distance=0.028) than that of ON1 (p-distance=0.012). The molecular evolutionary rate of central Vietnam ON1 strains was estimated to be 2.55×10 -2 (substitutions/site/year) and was faster than NA1 (7.12×10 -3 (substitutions/site/year)). Interestingly, the evolutionary rates of both genotypes ON1 and NA1 strains from central Vietnam were faster than the global strains respectively. Furthermore, the shifts of N-glycosylation pattern within the G gene 3rd hypervariable region of Vietnamese NA1 strains were observed in each year. BSP analysis indicated the rapid growth of RSV-A effective population size in early 2012. These results suggested that the molecular evolution of RSV-A G gene detected in central Vietnam was fast with unique evolutionary dynamics. Copyright © 2016 Elsevier B.V. All rights reserved.

  3. Description of two new Calicnemia from Vietnam and central Laos with notes on their congeners in Vietnam (Odonata: Platycnemididae).

    PubMed

    Phan, Quoc Toan; Kompier, Tom; Karube, Haruki

    2017-02-16

    Descriptions are given of two new species of Calicnemia: C. akahara sp. nov. from central and southern Vietnam and C. hamata sp. nov. from central Laos. C. soccifera Yu & Chen, 2013, and C. haksik Wilson & Reels, 2003, are recorded for the first time from Vietnam; C. uenoi Asahina, 1997, is redescribed with new illustrations provided of its anal appendages and genital ligula; and the occurrence of C. mortoni (Laidlaw, 1917) in Vietnam is discussed.

  4. Limited geographic distribution of the novel cyclovirus CyCV-VN.

    PubMed

    Le, Van Tan; de Jong, Menno D; Nguyen, Van Kinh; Nguyen, Vu Trung; Taylor, Walter; Wertheim, Heiman F L; van der Ende, Arie; van der Hoek, Lia; Canuti, Marta; Crusat, Martin; Sona, Soeng; Nguyen, Hanh Uyen; Giri, Abhishek; Nguyen, Thi Thuy Chinh Bkrong; Ho, Dang Trung Nghia; Farrar, Jeremy; Bryant, Juliet E; Tran, Tinh Hien; Nguyen, Van Vinh Chau; van Doorn, H Rogier

    2014-02-05

    A novel cyclovirus, CyCV-VN, was recently identified in cerebrospinal fluid (CSF) from patients with central nervous system (CNS) infections in central and southern Vietnam. To explore the geographic distribution of this novel virus, more than 600 CSF specimens from patients with suspected CNS infections in northern Vietnam, Cambodia, Nepal and The Netherlands were screened for the presence of CyCV-VN but all were negative. Sequence comparison and phylogenetic analysis between CyCV-VN and another novel cyclovirus recently identified in CSF from Malawian patients indicated that these represent distinct cycloviral species, albeit phylogenetically closely related. The data suggest that CyCV-VN has a limited geographic distribution within southern and central Vietnam. Further research is needed to determine the global distribution and diversity of cycloviruses and importantly their possible association with human disease.

  5. The evolutionary dynamics of highly pathogenic avian influenza H5N1 in south-central Vietnam reveals multiple clades evolving from Chinese and Cambodian viruses.

    PubMed

    Nguyen, Tinh Huu; Than, Van Thai; Thanh, Hien Dang; Nguyen, Van Quang; Nguyen, Kim Hue; Nguyen, Duc Tan; Park, Jong-Hwa; Chung, In Sik; Jeong, Dae Gwin; Chang, Kyu-Tae; Oh, Tae Kwang; Kim, Wonyong

    2015-10-01

    In Vietnam, highly pathogenic avian influenza (HPAI), such as that caused by H5N1 viruses, is the most highly contagious infectious disease that has been affecting domestic poultry in recent years. Vietnam might be an evolutionary hotspot and a potential source of globally pandemic strains. However, few studies have reported viruses circulating in the south-central region of Vietnam. In the present study, 47 H5N1-positive samples were collected from both vaccinated and unvaccinated poultry farms in the South Central Coast region of Vietnam during 2013-2014, and their genetic diversity was analyzed. A common sequence motif for HPAI virus was identified at HA-cleavage sites in all samples: either RERRRKR/G (clades 2.3.2.1c and 2.3.2.1a) or REGRRKKR/G (clade 1.1.2). Phylogenetic analysis of HA genes identified three clades of HPAI H5N1: 1.1.2 (n=1), 2.3.2.1a (n=1), and 2.3.2.1c (n=45). The phylogenetic analysis indicated that these Vietnamese clades may have evolved from Chinese and Cambodian virus clades isolated in 2012-2013 but are less closely related to the clades detected from the Tyva Republic, Bulgaria, Mongolia, Japan, and Korea in 2009-2011. Detection of the coexistence of virus clades 2.3.2.1 and the very virulent 1.1.2 in the south-central regions suggests their local importance and highlights concerns regarding their spread, both northwards and southwards, as well as the potential for reassortment. The obtained data highlight the importance of regular identification of viral evolution and the development and use of region-specific vaccines. Copyright © 2015 Elsevier Ltd. All rights reserved.

  6. Sampling and Analysis of Atmospheric Pcdd/fs in South China Sea and Background Area in Vietnam

    NASA Astrophysics Data System (ADS)

    Chi, K.; Thuan, N. T.; Anh, N. X.; Lin, N.

    2011-12-01

    During the Vietnam conflict, United States (US) forces sprayed a greater volume of defoliant (Agent Orange) with higher PCDD/F content in central Vietnam. The Vietnamese have been exposed to these levels during spraying primarily through contact with former US military infrastructure. In this study, the concentrations of atmospheric PCDD/Fs observed at three background stations (Fig. 1) at Dongsha Island (Sites A) in South China Sea, Da Nang (Site B) city and Son La (Site C) in central and northern Vietnam, respectively, to further understand the PCDD/F contamination in Vietnam. The Measurements indicated that the atmospheric PCDD/F concentrations at Sites A, B and C were 1.66~10.8, 23.4~146 and 11.1~59.5 fg I-TEQ/m3, respectively, during the spring season in 2010 and 2011. The significantly lower PCDD/F concentrations and contents in suspended particles (23.7~33.9 pg I-TEQ/g-TSP) measured at Site A in the South China Sea can be attributed to the lack of any combustion sources within almost 300 km of this island. However, the significantly higher PCDD/F contents in suspended particles (270~300 pg I-TEQ/g-TSP) were measured at Site B in central Vietnam. In addition, Fig. 2 shows that the distribution of PCDD/F congeners measured at Da Nang station was quite different from those measured at other station with high PCDD distribution (>85%) especially in OCDD (>70%). We consider that the high fraction of PCDDs observed at Da Nang probably originated as anthropogenic emission from specific source in Vietnam.

  7. Regional trends in early-monsoon rainfall over Vietnam and CCSM4 attribution

    NASA Astrophysics Data System (ADS)

    Li, R.; Wang, S. S.-Y.; Gillies, R. R.; Buckley, B. M.; Yoon, J.-H.; Cho, C.

    2018-04-01

    The analysis of precipitation trends for Vietnam revealed that early-monsoon precipitation has increased over the past three decades but to varying degrees over the northern, central and southern portions of the country. Upon investigation, it was found that the change in early-monsoon precipitation is associated with changes in the low-level cyclonic airflow over the South China Sea and Indochina that is embedded in the large-scale atmospheric circulation associated with a "La Niña-like" anomalous sea surface temperature pattern with warming in the western Pacific and Indian Oceans and cooling in the eastern Pacific. The Community Climate System Model version 4 (CCSM4) was subsequently used for an attribution analysis. Over northern Vietnam an early-monsoon increase in precipitation is attributed to changes in both greenhouse gases and natural forcing. For central Vietnam, the observed increase in early-monsoon precipitation is reproduced by the simulation forced with greenhouse gases. However, over southern Vietnam the early-monsoon precipitation increase is less definitive where aerosols were seen to be preponderant but natural forcing through the role of the Interdecadal Pacific Oscillation may well be a factor that is not resolved by CCSM4. Increased early-monsoonal precipitation over the coastal lowland and deltas has the potential to amplify economic and human losses.

  8. Molecular diagnostics and ITS-based phylogenic analysis of Streptococcus suis serotype 2 in central Vietnam.

    PubMed

    Nguyen, Bach Hoang; Phan, Dieu Hong Nu; Nguyen, Hien Xuan; Le, An Van; Alberti, Alberto

    2015-07-04

    Streptococcus suis (S. suis) serotype 2 has recently become the most prevalent cause of meningitis in adults in many areas of Vietnam. This study provides data on S. suis molecular diagnosis in central Vietnam using a real-time polymerase chain reaction (PCR) assay targeting the S. suis serotype 2 cps2J gene. Additionally, 16S-23S rDNA intragenic spacer (ITS)-based phylogenic analysis of strains isolated from cerebrospinal fluid (CSF) in Thua Thien Hue Province, Vietnam, is presented and discussed. Pathogenic bacteria were isolated from 40 CSF samples, and 18 were identified as S. suis by culture-dependent methods. Capsular serotyping was assessed by real-time PCR. ITS sequences were obtained after traditional PCR and were used in phylogenic analyses. Pathogenic bacteria were isolated from 36 out of 40 CSF samples. A total of 18 S. suis strains were isolated and assigned to serotype 2 by real-time PCR. One CSF sample, negative when tested by culture-dependent methods, was positive to S. suis serotype 2 by real-time PCR. Pairwise alignments of the 18 ITS sequences did not reveal any variable nucleotide position, and resulted in a single sequence type. Sequences were similar to S. suis serotype 2 reference ITS sequences (> 98.1%), and there was no lack of an ITS spacer region in the isolates. S. suis serotype 2 is the most prevalent serotype in central Vietnam. Real-time PCR assay proved to be a reliable diagnostic method for early detection of S. suis 2 in CSF samples.

  9. Genetic evolution of H5 highly pathogenic avian influenza virus in domestic poultry in Vietnam between 2011 and 2013.

    PubMed

    Lee, Eun-Kyoung; Kang, Hyun-Mi; Kim, Kwang-Il; Choi, Jun-Gu; To, Thanh Long; Nguyen, Tho Dang; Song, Byung-Min; Jeong, Jipseol; Choi, Kang-Seuk; Kim, Ji-Ye; Lee, Hee-Soo; Lee, Youn-Jeong; Kim, Jae-Hong

    2015-04-01

    In spite of highly pathogenic avian influenza H5N1 vaccination campaigns for domestic poultry, H5N1 viruses continue to circulate in Vietnam. To estimate the prevalence of avian influenza virus in Vietnam, surveillance was conducted between November 2011 and February 2013. Genetic analysis of 312 highly pathogenic avian influenza H5 viruses isolated from poultry in Vietnam was conducted and possible genetic relationships with strains from neighboring countries were investigated. As previously reported, phylogenetic analysis of the avian influenza virus revealed two H5N1 HPAI clades that were circulating in Vietnam. Clade 1.1, related to Cambodian strains, was predominant in the southern provinces, while clade 2.3.2.1 viruses were predominant in the northern and central provinces. Sequence analysis revealed evidence of active genetic evolution. In the gene constellation of clade 2.3.2.1, genotypes A, B, and B(II) existed during the 2011/2012 winter season. In June 2012, new genotype C emerged by reassortment between genotype A and genotype B(II), and this genotype was predominant in 2013 in the northern and central provinces. Interestingly, enzootic Vietnamese clade 2.3.2.1C H5 virus subsequently reassorted with N2, which originated from wild birds, to generate H5N2 highly pathogenic avian influenza, which was isolated from duck in the northeast region. This investigation indicated that H5N1 outbreaks persist in Vietnam and cause genetic reassortment with circulating viruses. It is necessary to strengthen active influenza surveillance to eradicate highly pathogenic avian influenza viruses and sever the link between highly pathogenic avian influenza and other circulating influenza viruses. © 2015 Poultry Science Association Inc.

  10. Dengue virus in sub-tropical northern and central Viet Nam: population immunity and climate shape patterns of viral invasion and maintenance.

    PubMed

    Rabaa, Maia A; Simmons, Cameron P; Fox, Annette; Le, Mai Quynh; Nguyen, Thuy Thi Thu; Le, Hai Yen; Gibbons, Robert V; Nguyen, Xuyen Thanh; Holmes, Edward C; Aaskov, John G

    2013-01-01

    Dengue virus transmission occurs in both epidemic and endemic cycles across tropical and sub-tropical regions of the world. Incidence is particularly high in much of Southeast Asia, where hyperendemic transmission plagues both urban and rural populations. However, endemicity has not been established in some areas with climates that may not support year-round viral transmission. An understanding of how dengue viruses (DENV) enter these environments and whether the viruses persist in inapparent local transmission cycles is central to understanding how dengue emerges in areas at the margins of endemic transmission. Dengue is highly endemic in tropical southern Vietnam, while increasingly large seasonal epidemics have occurred in northern Viet Nam over the last decade. We have investigated the spread of DENV-1 throughout Vietnam to determine the routes by which the virus enters northern and central regions of the country. Phylogeographic analysis of 1,765 envelope (E) gene sequences from Southeast Asia revealed frequent movement of DENV between neighboring human populations and strong local clustering of viral lineages. Long-distance migration of DENV between human population centers also occurred regularly and on short time-scales, indicating human-mediated viral invasion into northern Vietnam. Human populations in southern Vietnam were found to be the primary source of DENV circulating throughout the country, while central and northern Vietnam acted as sink populations, likely due to reduced connectedness to other populations in the case of the central regions and to the influence of temperature variability on DENV replication and vector survival and competence in the north. Finally, phylogeographic analyses suggested that viral movement follows a gravity model and indicates that population immunity and physical and economic connections between populations may play important roles in shaping patterns of DENV transmission.

  11. Dengue Virus in Sub-tropical Northern and Central Viet Nam: Population Immunity and Climate Shape Patterns of Viral Invasion and Maintenance

    PubMed Central

    Rabaa, Maia A.; Simmons, Cameron P.; Fox, Annette; Le, Mai Quynh; Nguyen, Thuy Thi Thu; Le, Hai Yen; Gibbons, Robert V.; Nguyen, Xuyen Thanh; Holmes, Edward C.; Aaskov, John G.

    2013-01-01

    Dengue virus transmission occurs in both epidemic and endemic cycles across tropical and sub-tropical regions of the world. Incidence is particularly high in much of Southeast Asia, where hyperendemic transmission plagues both urban and rural populations. However, endemicity has not been established in some areas with climates that may not support year-round viral transmission. An understanding of how dengue viruses (DENV) enter these environments and whether the viruses persist in inapparent local transmission cycles is central to understanding how dengue emerges in areas at the margins of endemic transmission. Dengue is highly endemic in tropical southern Vietnam, while increasingly large seasonal epidemics have occurred in northern Viet Nam over the last decade. We have investigated the spread of DENV-1 throughout Vietnam to determine the routes by which the virus enters northern and central regions of the country. Phylogeographic analysis of 1,765 envelope (E) gene sequences from Southeast Asia revealed frequent movement of DENV between neighboring human populations and strong local clustering of viral lineages. Long-distance migration of DENV between human population centers also occurred regularly and on short time-scales, indicating human-mediated viral invasion into northern Vietnam. Human populations in southern Vietnam were found to be the primary source of DENV circulating throughout the country, while central and northern Vietnam acted as sink populations, likely due to reduced connectedness to other populations in the case of the central regions and to the influence of temperature variability on DENV replication and vector survival and competence in the north. Finally, phylogeographic analyses suggested that viral movement follows a gravity model and indicates that population immunity and physical and economic connections between populations may play important roles in shaping patterns of DENV transmission. PMID:24340118

  12. Connectivity and distant drivers of land change: A case study of land use, land cover, and livelihood changes in Quang Tri, Vietnam

    NASA Astrophysics Data System (ADS)

    Rounds, Eric

    The urban lowland areas of Vietnam have been at the forefront of economic liberalization over the last 30 years, while the more remote mountainous areas of the country have lagged behind. Upland areas in the Northern and Central portions of Vietnam in particular remain largely impoverished and disconnected from broader national and regional markets. To address this economic inequality in the uplands, recent economic development efforts such as the East-West Economic Corridor (EWEC) have aimed at expanding road infrastructure to remote areas in Central Vietnam. This study examines the impact of road expansion in the EWEC on a single village in Quang Tri, Vietnam. It draws from social economic data gathered during fieldwork and a historical land cover analysis to address how land use, land cover, and livelihoods have changed in recent decades. Moreover, the paper discusses the distal and proximate drivers of these changes. Findings show that the improved road connectivity provided by new roads has facilitated the transmission of distant market-related drivers into the study area, and that these drivers have fostered significant changes in land use, land cover, and livelihoods.

  13. Competing for Coffee Space: Development-Induced Displacement in the Central Highlands of Vietnam

    ERIC Educational Resources Information Center

    Doutriaux, Sylvie; Geisler, Charles; Shively, Gerald

    2008-01-01

    Vietnam has emerged as the world's second largest producer of coffee. The benefits of this expanding coffee economy are substantial but not universal; their distribution follows ethnic lines despite government commitment to equalize welfare. Focusing on Dak Lak Province in Vietnam's Central Highlands, we investigate this commercial transformation…

  14. 78 FR 17745 - Waiver of Restriction on Assistance to the Central Government of Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-22

    ... DEPARTMENT OF STATE [Public Notice 8246] Waiver of Restriction on Assistance to the Central Government of Vietnam Pursuant to Section 7031(b)(3) of the Department of State, Foreign Operations, and... United States to waive the requirements of Section 7031(b)(1) of the Act with respect to Vietnam, and I...

  15. Cost of treatment for breast cancer in central Vietnam

    PubMed Central

    Hoang Lan, Nguyen; Laohasiriwong, Wongsa; Stewart, John Frederick; Tung, Nguyen Dinh; Coyte, Peter C.

    2013-01-01

    Background In recent years, cases of breast cancer have been on the rise in Vietnam. To date, there has been no study on the financial burden of the disease. This study estimates the direct medical cost of a 5-year treatment course for women with primary breast cancer in central Vietnam. Methods Retrospective patient-level data from medical records at the Hue Central Hospital between 2001 and 2006 were analyzed. Cost analysis was conducted from the health care payers’ perspective. Various direct medical cost categories were computed for a 5-year treatment course for patients with breast cancer. Costs, in US dollars, discounted at a 3% rate, were converted to 2010 after adjusting for inflation. For each cost category, the mean, standard deviation, median, and cost range were estimated. Median regression was used to investigate the relationship between costs and the stage, age at diagnosis, and the health insurance coverage of the patients. Results The total direct medical cost for a 5-year treatment course for breast cancer in central Vietnam was estimated at $975 per patient (range: $11.7–$3,955). The initial treatment cost, particularly the cost of chemotherapy, was found to account for the greatest proportion of total costs (64.9%). Among the patient characteristics studied, stage at diagnosis was significantly associated with total treatment costs. Patients at later stages of breast cancer did not differ significantly in their total costs from those at earlier stages however, but their survival time was much shorter. The absence of health insurance was the main factor limiting service uptake. Conclusion From the health care payers’ perspective, the Government subsidization of public hospital charges lowered the direct medical costs of a 5-year treatment course for primary breast cancer in central Vietnam. However, the long treatment course was significantly influenced by out-of-pocket payments for patients without health insurance. PMID:23394855

  16. Geographical and temporal patterns of rabies post exposure prophylaxis (PEP) incidence in humans in the Mekong River Delta and Southeast Central Coast regions in Vietnam from 2005 to 2015

    PubMed Central

    Thiem, Vu Dinh; Anh, Dang Duc; Duong, Tran Nhu; Lee, Mihye; Grace, Delia; Nguyen-Viet, Hung

    2018-01-01

    Background In Vietnam, rabies has been a notifiable disease for more than 40 years. Over the last five years, on average, more than 350,000 people per year have been bitten by dogs and cats while more than 80 human deaths have been reported yearly. No studies have been conducted to evaluate the geographical and temporal patterns of rabies in humans in Vietnam. Therefore, the main objective of this study was to assess the geographical and temporal distributions of rabies post exposure prophylaxis (PEP) incidence in humans in Vietnam from 2005 to 2015. Methods Average incidence rabies (AIR) PEP rates for every 3 or 4 years (2005–2008, 2009–2012 and 2013–2015) were calculated to describe the spatial distribution of rabies PEP. Hotspot analysis was implemented to identify patterns of spatial significance using the Getis-Ord Gi statistic. For temporal pattern analysis, two regions [Mekong River Delta (MRD) and Southeast Central Coast (SCC)], with the highest incidence rates, and the seasonal-decomposition procedure based on loess (STL), were compared to assess their temporal patterns of rabies PEP. Findings We found hotspots in southern Vietnam and coldspots in northern Vietnam during the study period. Rabies cases were limited to specific areas. In addition, the hotspot analysis showed that new risk areas were identified in each period which were not observed in incidence rate maps. The seasonal plots showed seasonal patterns with a strong peak in February/July and a minor peak in October/December in the MRD region. However, in the SCC, a small peak was detected at the early part of each year and a strong peak in the middle of each year. Conclusion Our findings provide insight into understanding the geographical and seasonal patterns of rabies PEP in Vietnam. This study provides evidence to aid policy makers when making decisions and investing resources. Such information may also be utilized to raise public awareness to prevent rabies exposures and reduce unnecessary PEP. PMID:29634746

  17. Epidemiology of forest malaria in Central Vietnam: the hidden parasite reservoir.

    PubMed

    Thanh, Pham Vinh; Van Hong, Nguyen; Van Van, Nguyen; Van Malderen, Carine; Obsomer, Valérie; Rosanas-Urgell, Anna; Grietens, Koen Peeters; Xa, Nguyen Xuan; Bancone, Germana; Chowwiwat, Nongnud; Duong, Tran Thanh; D'Alessandro, Umberto; Speybroeck, Niko; Erhart, Annette

    2015-02-19

    After successfully reducing the malaria burden to pre-elimination levels over the past two decades, the national malaria programme in Vietnam has recently switched from control to elimination. However, in forested areas of Central Vietnam malaria elimination is likely to be jeopardized by the high occurrence of asymptomatic and submicroscopic infections as shown by previous reports. This paper presents the results of a malaria survey carried out in a remote forested area of Central Vietnam where we evaluated malaria prevalence and risk factors for infection. After a full census (four study villages = 1,810 inhabitants), the study population was screened for malaria infections by standard microscopy and, if needed, treated according to national guidelines. An additional blood sample on filter paper was also taken in a random sample of the population for later polymerase chain reaction (PCR) and more accurate estimation of the actual burden of malaria infections. The risk factor analysis for malaria infections was done using survey multivariate logistic regression as well as the classification and regression tree method (CART). A total of 1,450 individuals were screened. Malaria prevalence by microscopy was 7.8% (ranging from 3.9 to 10.9% across villages) mostly Plasmodium falciparum (81.4%) or Plasmodium vivax (17.7%) mono-infections; a large majority (69.9%) was asymptomatic. By PCR, the prevalence was estimated at 22.6% (ranging from 16.4 to 42.5%) with a higher proportion of P. vivax mono-infections (43.2%). The proportion of sub-patent infections increased with increasing age and with decreasing prevalence across villages. The main risk factors were young age, village, house structure, and absence of bed net. This study confirmed that in Central Vietnam a substantial part of the human malaria reservoir is hidden. Additional studies are urgently needed to assess the contribution of this hidden reservoir to the maintenance of malaria transmission. Such evidence will be crucial for guiding elimination strategies.

  18. Opisthorchis viverrini infections and associated risk factors in a lowland area of Binh Dinh Province, Central Vietnam.

    PubMed

    Dao, Thanh Thi Ha; Bui, Tuan Van; Abatih, Emmanuel Nji; Gabriël, Sarah; Nguyen, Thanh Thi Giang; Huynh, Quang Hong; Nguyen, Chuong Van; Dorny, Pierre

    2016-05-01

    Opisthorchiasis caused by Opisthorchis viverrini is a major public health problem in the Mekong Basin in South East Asia. It is associated with cholangiocarcinoma, a fatal cancer of the bile duct, which is very common in some areas of Thailand and Lao PDR. Although there is evidence of opisthorchiasis in the central and Southern provinces of Vietnam, data are scarce and Vietnam is often not considered an opisthorchiasis endemic area in the international literature. We conducted a cross-sectional survey in June 2015 in a lowland rural area of Binh Dinh Province in Central Vietnam to investigate the apparent prevalence of O. viverrini infection in the population and the associated risk factors. A total of 254 stool samples were collected and examined by the Kato Katz method. Consenting people shedding Opisthorchis-like eggs with their stools were treated with praziquantel and MgSO4 and adult worms were collected from stools for morphological and molecular identifications. Risk factors were studied with a structured questionnaire and the association with infection was evaluated by univariate and multivariate Firth's logistic regression analysis. The apparent prevalence in the investigated population determined by stool examination was 11.4% (CI: 8-16%). Infection with O. viverrini was confirmed in all 11 individuals consenting to receive praziquantel treatment and subsequent worm recovery from stools. The mean number of worms recovered after treatment/purgation was 14.5 (range 2-44). Male gender and the consumption of dishes prepared from raw small wild-caught freshwater fish (Carassius auratus) were found to be significant risk factors associated with opisthorchiasis in the area. These findings confirm the presence of O. viverrini infection in Central Vietnam related to the consumption of raw fish dishes. Awareness campaigns and control programs should be implemented in the region to combat this potentially fatal fluke infection. Copyright © 2016 Elsevier B.V. All rights reserved.

  19. Psammon rotifers in Central Vietnam, with the descriptions of three new species (Rotifera: Monogononta).

    PubMed

    Dang, Mau Trinh; Segers, Hendrik; Sanoamuang, La-Orsri

    2015-09-15

    In order to address the dearth of information on Rotifera in Vietnam, and especially on rotifers inhabiting freshwater psammon in Southeast Asia, we collected and examined twenty-five hygropsammon samples from Bau Thiem Lake, Thua Thien Hue Province, central Vietnam. A total of eighty-nine species-level rotifer taxa were identified, belonging to 21 genera and 13 families. Of these, 48 taxa (54%) are new to Vietnam, including three species, Lecane climacois Harring & Myers, 1926, Notommata cerberus (Gosse, 1886) and Trichocerca intermedia (Stenroos, 1898) that are new to the Oriental region, and three species, Lecane phapi n. sp., Lecane dorysimilis n. sp. and Trichocerca bauthiemensis n. sp. that are new to science. These, and some additional rare species are commented upon and illustrated. We estimated that the α-diversity of psammon rotifers in Bau Thiem Lake may be as high as 99 (SD=8.4; Chao2) or 115 (Jacknife2) taxa. These results indicate a high potential of rotifer diversity in the hygropsammon at Bau Thiem Lake, central Vietnam.

  20. Valine/isoleucine variants drive selective pressure in the VP1 sequence of EV-A71 enteroviruses.

    PubMed

    Duy, Nghia Ngu; Huong, Le Thi Thanh; Ravel, Patrice; Huong, Le Thi Song; Dwivedi, Ankit; Sessions, October Michael; Hou, Yan'An; Chua, Robert; Kister, Guilhem; Afelt, Aneta; Moulia, Catherine; Gubler, Duane J; Thiem, Vu Dinh; Thanh, Nguyen Thi Hien; Devaux, Christian; Duong, Tran Nhu; Hien, Nguyen Tran; Cornillot, Emmanuel; Gavotte, Laurent; Frutos, Roger

    2017-05-08

    In 2011-2012, Northern Vietnam experienced its first large scale hand foot and mouth disease (HFMD) epidemic. In 2011, a major HFMD epidemic was also reported in South Vietnam with fatal cases. This 2011-2012 outbreak was the first one to occur in North Vietnam providing grounds to study the etiology, origin and dynamic of the disease. We report here the analysis of the VP1 gene of strains isolated throughout North Vietnam during the 2011-2012 outbreak and before. The VP1 gene of 106 EV-A71 isolates from North Vietnam and 2 from Central Vietnam were sequenced. Sequence alignments were analyzed at the nucleic acid and protein level. Gene polymorphism was also analyzed. A Factorial Correspondence Analysis was performed to correlate amino acid mutations with clinical parameters. The sequences were distributed into four phylogenetic clusters. Three clusters corresponded to the subgenogroup C4 and the last one corresponded to the subgenogroup C5. Each cluster displayed different polymorphism characteristics. Proteins were highly conserved but three sites bearing only Isoleucine (I) or Valine (V) were characterized. The isoleucine/valine variability matched the clusters. Spatiotemporal analysis of the I/V variants showed that all variants which emerged in 2011 and then in 2012 were not the same but were all present in the region prior to the 2011-2012 outbreak. Some correlation was found between certain I/V variants and ethnicity and severity. The 2011-2012 outbreak was not caused by an exogenous strain coming from South Vietnam or elsewhere but by strains already present and circulating at low level in North Vietnam. However, what triggered the outbreak remains unclear. A selective pressure is applied on I/V variants which matches the genetic clusters. I/V variants were shown on other viruses to correlate with pathogenicity. This should be investigated in EV-A71. I/V variants are an easy and efficient way to survey and identify circulating EV-A71 strains.

  1. A spatial and temporal analysis of paediatric central nervous system infections from 2005 to 2015 in Ho Chi Minh City, Vietnam.

    PubMed

    Ho, N T; Hoang, V M T; Le, N N T; Nguyen, D T; Tran, A; Kaki, D; Tran, P M; Thompson, C N; Ngo, M N Q; Truong, K H; Nguyen, H T; Ha, T M; Nguyen, C V V; Thwaites, G E; Thakur, K T; Hesdorffer, D; Baker, S

    2017-11-01

    Central nervous system infections (CNSI) are a leading cause of death and long-term disability in children. Using ICD-10 data from 2005 to 2015 from three central hospitals in Ho Chi Minh City (HCMC), Vietnam, we exploited generalized additive mixed models (GAMM) to examine the spatial-temporal distribution and spatial and climatic risk factors of paediatric CNSI, excluding tuberculous meningitis, in this setting. From 2005 to 2015, there were 9469 cases of paediatric CNSI; 33% were ⩽1 year old at admission and were mainly diagnosed with presumed bacterial CNSI (BI) (79%), the remainder were >1 year old and mainly diagnosed with presumed non-bacterial CNSI (non-BI) (59%). The urban districts of HCMC in proximity to the hospitals as well as some outer districts had the highest incidences of BI and non-BI; BI incidence was higher in the dry season. Monthly BI incidence exhibited a significant decreasing trend over the study. Both BI and non-BI were significantly associated with lags in monthly average temperature, rainfall, and river water level. Our findings add new insights into this important group of infections in Vietnam, and highlight where resources for the prevention and control of paediatric CNSI should be allocated.

  2. A Probabilistic Typhoon Risk Model for Vietnam

    NASA Astrophysics Data System (ADS)

    Haseemkunju, A.; Smith, D. F.; Brolley, J. M.

    2017-12-01

    Annually, the coastal Provinces of low-lying Mekong River delta region in the southwest to the Red River Delta region in Northern Vietnam is exposed to severe wind and flood risk from landfalling typhoons. On average, about two to three tropical cyclones with a maximum sustained wind speed of >=34 knots make landfall along the Vietnam coast. Recently, Typhoon Wutip (2013) crossed Central Vietnam as a category 2 typhoon causing significant damage to properties. As tropical cyclone risk is expected to increase with increase in exposure and population growth along the coastal Provinces of Vietnam, insurance/reinsurance, and capital markets need a comprehensive probabilistic model to assess typhoon risk in Vietnam. In 2017, CoreLogic has expanded the geographical coverage of its basin-wide Western North Pacific probabilistic typhoon risk model to estimate the economic and insured losses from landfalling and by-passing tropical cyclones in Vietnam. The updated model is based on 71 years (1945-2015) of typhoon best-track data and 10,000 years of a basin-wide simulated stochastic tracks covering eight countries including Vietnam. The model is capable of estimating damage from wind, storm surge and rainfall flooding using vulnerability models, which relate typhoon hazard to building damageability. The hazard and loss models are validated against past historical typhoons affecting Vietnam. Notable typhoons causing significant damage in Vietnam are Lola (1993), Frankie (1996), Xangsane (2006), and Ketsana (2009). The central and northern coastal provinces of Vietnam are more vulnerable to wind and flood hazard, while typhoon risk in the southern provinces are relatively low.

  3. Achievements and Lessons Learned from Vietnam's Higher Education Quality Assurance System after a Decade of Establishment

    ERIC Educational Resources Information Center

    Nguyen, Huu Cuong; Ta, Thi Thu Hien; Nguyen, Thi Thu Huong

    2017-01-01

    Higher education quality assurance and accreditation were officially implemented in Vietnam over twelve years ago. From a totally centralized model, Vietnam's accreditation system has been becoming more independent, especially with the establishment of accrediting agencies. The first accreditation certificates were also awarded to universities…

  4. Confirmed Plasmodium vivax Resistance to Chloroquine in Central Vietnam.

    PubMed

    Thanh, Pham Vinh; Hong, Nguyen Van; Van, Nguyen Van; Louisa, Melva; Baird, Kevin; Xa, Nguyen Xuan; Peeters Grietens, Koen; Hung, Le Xuan; Duong, Tran Thanh; Rosanas-Urgell, Anna; Speybroeck, Niko; D'Alessandro, Umberto; Erhart, Annette

    2015-12-01

    Plasmodium vivax resistance to chloroquine (CQ) is currently reported in almost all countries where P. vivax is endemic. In Vietnam, despite a first report on P. vivax resistance to chloroquine published in the early 2000s, P. vivax was still considered sensitive to CQ. Between May 2009 and December 2011, a 2-year cohort study was conducted in central Vietnam to assess the recommended radical cure regimen based on a 10-day course of primaquine (0.5 mg/kg/day) together with 3 days of CQ (25 mg/kg). Here we report the results of the first 28-day follow-up estimating the cumulative risk of P. vivax recurrences together with the corresponding CQ blood concentrations, among other endpoints. Out of 260 recruited P. vivax patients, 240 completed treatment and were followed up to day 28 according to the WHO guidelines. Eight patients (3.45%) had a recurrent P. vivax infection, at day 14 (n = 2), day 21 (n = 1), and day 28 (n = 5). Chloroquine blood concentrations, available for 3/8 recurrent infections (days 14, 21, and 28), were above the MIC (>100 ng/ml whole blood) in all of these cases. Fever and parasitemia (both sexual and asexual stages) were cleared by day 3. Anemia was common at day 0 (35.8%), especially in children under 10 years (50%), and hemoglobin (Hb) recovery at day 28 was substantial among anemic patients (median change from day 0 to 28, +1.7 g/dl; interquartile range [IQR], +0.7 to +3.2). This report, based on CQ blood levels measured at the time of recurrences, confirms for the first time P. vivax CQ resistance in central Vietnam and calls for further studies using standardized protocols for accurately monitoring the extent and evolution of P. vivax resistance to chloroquine in Vietnam. These results, together with the mounting evidence of artemisinin resistance in central Vietnam, further highlight the increasing threat of antimalarial drug resistance to malaria elimination in Vietnam. Copyright © 2015 Thanh et al.

  5. Integrated Universal Soil Loss Equation (USLE) and Geographical Information System (GIS) for Soil Erosion Measurement in basin of Asap river, Central Vietnam

    NASA Astrophysics Data System (ADS)

    Pham Gia, Tung; Degener, Jan; Kappas, Martin

    2017-04-01

    The study was conducted in Asap river basin, A Luoi district, Thua Thien Hue Province, Vietnam, using the Universal Soil Loss Equation (USLE) and Geographical Information System (GIS) to determine the soil erosion status. The results show strong effect of the heavy rainfall and high slope on the erosion level in the research area. More than 40% of land area lost over 10 tons/ha/year. The natural forest land lost the most by averagely is 38.4 tons/ha/year, while the agricultural land showed less with 2.79 tons for paddy rice land use type and 7.58 tons for upland crops yearly. Comparison between some places of Vietnam and the Southeast Asia showed that soil erosion in watersheds of Asap is more serious. We have been proposed a recommendation on changing the classification system of land use type in Vietnam for more accurate in soil erosion measurement. Keywords: Land use type, Soil erosion, USLE, Central Vietnam.

  6. Geochemical constraints on the spatial distribution of recycled oceanic crust in the mantle source of late Cenozoic basalts, Vietnam

    NASA Astrophysics Data System (ADS)

    Hoang, Thi Hong Anh; Choi, Sung Hi; Yu, Yongjae; Pham, Trung Hieu; Nguyen, Kim Hoang; Ryu, Jong-Sik

    2018-01-01

    This study presents a comprehensive analysis of the major and trace element, mineral, and Sr, Nd, Pb and Mg isotopic compositions of late Cenozoic intraplate basaltic rocks from central and southern Vietnam. The Sr, Nd, and Pb isotopic compositions of these basalts define a tight linear array between Indian mid-ocean-ridge basalt (MORB)-like mantle and enriched mantle type 2 (EM2) components. These basaltic rocks contain low concentrations of CaO (6.4-9.7 wt%) and have high Fe/Mn ratios (> 60) and FeO/CaO-3MgO/SiO2 values (> 0.54), similar to partial melts derived from pyroxenite/eclogite sources. This similarity is also supported by the composition of olivine within these samples, which contains low concentration of Ca and high concentrations of Ni, and shows high Fe/Mn ratios. The basaltic rocks have elevated Dy/Yb ratios that fall within the range of melts derived from garnet lherzolite material, although their Yb contents are much higher than those of modeled melts derived from only garnet lherzolite material and instead plot near the modeled composition of eclogite-derived melts. The Vietnamese basaltic rocks have lighter δ26Mg values (- 0.38 ± 0.06‰) than is expected for the normal mantle (- 0.25 ± 0.07‰), and these values decrease with decreasing Hf/Hf* and Ti/Ti* ratios, indicating that these basalts were derived from a source containing carbonate material. On primitive mantle-normalized multi-element variation diagrams, the central Vietnamese basalts are characterized by positive Sr, Eu, and Ba anomalies. These basalts also plot within the pelagic sediment field in Pbsbnd Pb isotopic space. This suggests that the mantle source of the basalts contained both garnet peridotite and recycled oceanic crust. A systematic analysis of variations in geochemical composition in basalts from southern to central Vietnam indicates that the recycled oceanic crust (possibly the paleo-Pacific slab) source material contains varying proportions of gabbro, basalt, and sediment. The basalts from south-central Vietnam (12°N-14°N) may be dominated by the lowest portion of the residual slab that contains rutile-bearing plagioclase-rich gabbroic eclogite, whereas the uppermost portion of the recycled slab, including sediment and basaltic material with small amounts of gabbro, may be a major constituent of the source for the basalts within the central region of Vietnam (14°N-16°N). Finally, the southern region (10°N-12°N) contains basalts sourced mainly from recycled upper oceanic crust that is basalt-rich and contains little or no sediment.

  7. Bacterial Diversity Associated with Wild Caught Anopheles Mosquitoes from Dak Nong Province, Vietnam Using Culture and DNA Fingerprint

    PubMed Central

    Ngo, Chung Thuy; Aujoulat, Fabien; Veas, Francisco; Jumas-Bilak, Estelle; Manguin, Sylvie

    2015-01-01

    Background Microbiota of Anopheles midgut can modulate vector immunity and block Plasmodium development. Investigation on the bacterial biodiversity in Anopheles, and specifically on the identification of bacteria that might be used in malaria transmission blocking approaches, has been mainly conducted on malaria vectors of Africa. Vietnam is an endemic country for both malaria and Bancroftian filariasis whose parasitic agents can be transmitted by the same Anopheles species. No information on the microbiota of Anopheles mosquitoes in Vietnam was available previous to this study. Method The culture dependent approach, using different mediums, and culture independent (16S rRNA PCR – TTGE) method were used to investigate the bacterial biodiversity in the abdomen of 5 Anopheles species collected from Dak Nong Province, central-south Vietnam. Molecular methods, sequencing and phylogenetic analysis were used to characterize the microbiota. Results and Discussion The microbiota in wild-caught Anopheles was diverse with the presence of 47 bacterial OTUs belonging to 30 genera, including bacterial genera impacting Plasmodium development. The bacteria were affiliated with 4 phyla, Actinobacteria, Bacteroidetes, Firmicutes and Proteobacteria, the latter being the dominant phylum. Four bacterial genera are newly described in Anopheles mosquitoes including Coxiella, Yersinia, Xanthomonas, and Knoellia. The bacterial diversity per specimen was low ranging from 1 to 4. The results show the importance of pairing culture and fingerprint methods to better screen the bacterial community in Anopheles mosquitoes. Conclusion Sampled Anopheles species from central-south Vietnam contained a diverse bacterial microbiota that needs to be investigated further in order to develop new malaria control approaches. The combination of both culture and DNA fingerprint methods allowed a thorough and complementary screening of the bacterial community in Anopheles mosquitoes. PMID:25747513

  8. Paragonimus and paragonimiasis in Vietnam: an update.

    PubMed

    Doanh, Pham Ngoc; Horii, Yoichiro; Nawa, Yukifumi

    2013-12-01

    Paragonimiasis is a food-borne parasitic zoonosis caused by infection with lung flukes of the genus Paragonimus. In Vietnam, research on Paragonimus and paragonimiasis has been conducted in northern and central regions of the country. Using a combination of morphological and molecular methods, 7 Paragonimus species, namely P. heterotremus, P. westermani, P. skrjabini, P. vietnamensis, P. proliferus, P. bangkokenis and P. harinasutai, have been identified in Vietnam. Of these, the first 3, P. heterotremus, P. westermani and P. skrjabini, are known to infect humans in other countries. However, in Vietnam, only P. heterotremus, found in some northern provinces, has been shown to infect humans. Even nowadays, local people in some northern provinces, such as Lai Chau and Yen Bai, are still suffering from P. heterotremus infection. In some provinces of central Vietnam, the prevalence and infection intensity of P. westermani metacercariae in freshwater crabs (the second intermediate hosts) are extremely high, but human cases have not been reported. Likewise, although P. skrjabini was found in Thanh Hoa Province, its pathogenicity to humans in Vietnam still remains uncertain. The results of molecular phylogenetic analyses of Vietnamese Paragonimus species provides new insights on the phylogeny and taxonomy of the genus Paragonimus. Comprehensive molecular epidemiological and geobiological studies on the genus in Vietnam and adjacent countries are needed to clarify the biodiversity and public health significance of the lung flukes.

  9. Paragonimus and Paragonimiasis in Vietnam: an Update

    PubMed Central

    Horii, Yoichiro; Nawa, Yukifumi

    2013-01-01

    Paragonimiasis is a food-borne parasitic zoonosis caused by infection with lung flukes of the genus Paragonimus. In Vietnam, research on Paragonimus and paragonimiasis has been conducted in northern and central regions of the country. Using a combination of morphological and molecular methods, 7 Paragonimus species, namely P. heterotremus, P. westermani, P. skrjabini, P. vietnamensis, P. proliferus, P. bangkokenis and P. harinasutai, have been identified in Vietnam. Of these, the first 3, P. heterotremus, P. westermani and P. skrjabini, are known to infect humans in other countries. However, in Vietnam, only P. heterotremus, found in some northern provinces, has been shown to infect humans. Even nowadays, local people in some northern provinces, such as Lai Chau and Yen Bai, are still suffering from P. heterotremus infection. In some provinces of central Vietnam, the prevalence and infection intensity of P. westermani metacercariae in freshwater crabs (the second intermediate hosts) are extremely high, but human cases have not been reported. Likewise, although P. skrjabini was found in Thanh Hoa Province, its pathogenicity to humans in Vietnam still remains uncertain. The results of molecular phylogenetic analyses of Vietnamese Paragonimus species provides new insights on the phylogeny and taxonomy of the genus Paragonimus. Comprehensive molecular epidemiological and geobiological studies on the genus in Vietnam and adjacent countries are needed to clarify the biodiversity and public health significance of the lung flukes. PMID:24516264

  10. The Health Policy Process in Vietnam: Going Beyond Kingdon's Multiple Streams TheoryComment on "Shaping the Health Policy Agenda: The Case of Safe Motherhood Policy in Vietnam".

    PubMed

    Kane, Sumit

    2016-04-25

    This commentary reflects upon the article along three broad lines. It reflects on the theoretical choices and omissions, particularly highlighting why it is important to adapt the multiple streams framework (MSF) when applying it in a socio-political context like Vietnam's. The commentary also reflects upon the analytical threads tackled by Ha et al; for instance, it highlights the opportunities offered by, and raises questions about the centrality of the Policy Entrepreneur in getting the policy onto the political agenda and in pushing it through. The commentary also dwells on the implications of the article for development aid policies and practices. Throughout, the commentary signposts possible themes for Ha et al to consider for further analysis, and more generally, for future research using Kingdon's multiple streams theory. © 2016 by Kerman University of Medical Sciences.

  11. Two new species of Nemouridae (Plecoptera) from Vietnam.

    PubMed

    Fochetti, Romolo; Ceci, Massimo

    2017-05-23

    Two new species belonging to the family Nemouridae, Nemoura kontumensis sp. nov. and Amphinemura konplongensis sp. nov. are described from the Central Highlands of Vietnam. Remarks on the affinities with related species are given.

  12. Reconstructing hydroclimatic variations using compound-specific hydrogen isotope analysis of biomarkers from a maar lake in the Central Highlands, Vietnam

    NASA Astrophysics Data System (ADS)

    Doiron, K. E.; Stevens, L. R.; Sauer, P. E.

    2017-12-01

    Monsoonal variation in Southeast Asia affects a significant portion of the global population, but knowledge regarding response of the monsoon system to changing boundary conditions is limited. The paleoclimatic tool of compound-specific isotope analysis(CSIA) provides the ability to reconstruct past precipitation using a diverse set of biomarkers preserved in the sedimentary record. Limited proxies in tropical southeast Asia and difficult site access have led to a deficit in paleoclimate records. Ia M'He (14°10'45" N, 107°52' E) is a shallow volcanic crater (maar) lake, approximately 57 ha, located in the Central Highlands of Vietnam. Precipitation in the Central Highlands is sensitive to reorganizations of major climatic features, such as the migration of the ITCZ and the coupled Indo-Asian monsoon, ENSO and related shifts in the Pacific Walker Circulation and typhoon frequency. To examine this complex behavior, this pilot study aims to provide a 500-year record of effective moisture inferred from CSIA of hydrogen isotopes on biomarkers. This study highlights the use of hydrogen isotopes of C28 n-alkanoic acid and dominant n-alkane chain lengths of C27 and C29, associated with terrestrial plant leaf waxes, as tracers for precipitation. The hydrogen isotope ratios of the plant wax components provide a proxy for paleo precipitation in a region where rainfall and droughts heavily influence population dynamics and create social discord. The CSIA record is expected to correlate with records from northern Vietnam, the South China Sea and Indonesia, with greater precipitation during the Little Ice Age. The CSIA data of terrestrial plant leaf waxes will be compared with secondary proxies including: diatoms, C/N and biogenic silica.

  13. Educational Financing and Budgeting in Lao PDR. Financial Management of Education Systems. Working Document.

    ERIC Educational Resources Information Center

    Bouapao, Lytou; Sengchandavong, Ouam; Sihavong, Siphandone

    This study provides an indepth description of financial management and budgetary procedures for education as well as a detailed analysis of major problems, recent developments, and new issues in Cambodia, Laos, and Vietnam. Laos, formerly one of the centrally planned economies, was previously considered "dormant" because of its limited…

  14. Prevalence and genotype distribution of hepatitis delta virus among chronic hepatitis B carriers in Central Vietnam

    PubMed Central

    Trung, Nguyen Thanh; Hoan, Nghiem Xuan; Wedemeyer, Heiner; Velavan, Thirumalaisamy P.

    2017-01-01

    Hepatitis D virus (HDV) infection plays an important role in liver diseases. However, the molecular epidemiology and impact of HDV infection in chronic hepatitis B (CHB) remain uncertain in Vietnam. This cross-sectional study aimed to investigate the prevalence and genotype distribution of HDV among HBsAg-positive patients in Central Vietnam. 250 CHB patients were tested for HDV using newly established HDV-specific RT-PCR techniques. HDV genotypes were determined by direct sequencing. Of the 250 patients 25 (10%) had detectable copies of HDV viral RNA. HDV-2 was predominant (20/25; 80%) followed by HDV-1 (5/25; 20%). Proven HDV genotypes share the Asian nomenclature. Chronic hepatitis B patients with concomitant HDV-1 showed higher HBV loads as compared to HDV-2 infected patients [median log10 (HBV-DNA copies/ml): 8.5 vs. 4.4, P = 0.036]. Our findings indicate that HDV infection is highly prevalent and HDV-2 is predominant in Central Vietnam. The data will add new information to the management of HBsAg-positive patients in a highly HBV endemic region to in- or exclude HDV infection in terms of diagnostic and treatment options. PMID:28403190

  15. Cyclovirus CyCV-VN species distribution is not limited to Vietnam and extends to Africa.

    PubMed

    Garigliany, Mutien-Marie; Hagen, Ralf Matthias; Frickmann, Hagen; May, Jürgen; Schwarz, Norbert Georg; Perse, Amanda; Jöst, Hanna; Börstler, Jessica; Shahhosseini, Nariman; Desmecht, Daniel; Mbunkah, Herbert Afegenwi; Daniel, Achukwi Mbunkah; Kingsley, Manchang Tanyi; Campos, Renata de Mendonca; de Paula, Vanessa Salete; Randriamampionona, Njary; Poppert, Sven; Tannich, Egbert; Rakotozandrindrainy, Raphael; Cadar, Daniel; Schmidt-Chanasit, Jonas

    2014-12-18

    Cycloviruses, small ssDNA viruses of the Circoviridae family, have been identified in the cerebrospinal fluid from symptomatic human patients. One of these species, cyclovirus-Vietnam (CyCV-VN), was shown to be restricted to central and southern Vietnam. Here we report the detection of CyCV-VN species in stool samples from pigs and humans from Africa, far beyond their supposed limited geographic distribution.

  16. Reconstructing hydroclimatic variations using compound-specific hydrogen isotope analysis of biomarkers from a maar lake in the Central Highlands, Vietnam

    NASA Astrophysics Data System (ADS)

    Doiron, Kelsey; Stevens, Lora; Sauer, Peter

    2017-04-01

    Monsoonal variation in Southeast Asia affects a significant portion of the global population, but knowledge regarding response of the monsoon system to changing boundary conditions is limited. The paleoclimatic tool of compound-specific isotope analysis(CSIA) provides the ability to reconstruct past precipitation using a diverse set of biomarkers preserved in the sedimentary record. Limited proxies in tropical southeast Asia and difficult site access have led to a deficit in paleoclimate records. Ia M'He (14˚ 10'45" N, 107˚ 52' E) is a shallow volcanic crater (maar) lake, approximately 57 ha, located in the Central Highlands of Vietnam. Precipitation in the Central Highlands is sensitive to reorganizations of major climatic features, such as the migration of the ITCZ and the coupled Indo-Asian monsoon, ENSO and related shifts in the Pacific Walker Circulation and typhoon frequency. To examine this complex behavior, this pilot study aims to provide a 500-year record of effective moisture inferred from CSIA of hydrogen isotopes on biomarkers. Carbon/nitrogen ratios and carbon isotope ratios indicate that bulk organic matter is a combination of algae and C3 vegetation, offering the potential to use compound-specific hydrogen isotopes of aquatic and terrestrial organic matter in tandem. Preliminary analysis of the core shows dominant alkane chain lengths of C27 and C29, associated with terrestrial plant leaf waxes. The hydrogen isotope ratios of the plant wax components provide a proxy for paleo precipitation in a region where rainfall and droughts heavily influence population dynamics and create social discord. The CSIA record is expected to correlate with records from northern Vietnam, the South China Sea and Indonesia, with greater precipitation during the Little Ice Age. The degree to which evaporative modification of lake water (i.e., seasonal drying) occurs will be estimated by comparing the terrestrial CSIA values indicative of meteoric water with aquatic CSIA values, which will capture the hydrologic balance of the lake itself.

  17. Detection of the Plasmodium falciparum Kelch-13 gene P553L mutation in sporozoites isolated from mosquito salivary glands in South-Central Vietnam.

    PubMed

    Maeno, Yoshimasa; Quang, Nguyen Tuyen; Culleton, Richard; Kawai, Satoru; Masuda, Gaku; Hori, Kaoru; Nakazawa, Shusuke; Marchand, Ron P

    2017-06-24

    Plasmodium falciparum has developed resistance against artemisinin in Southeast Asia. Mutations in the P. falciparum Kelch-13 (Pfk13) gene are associated with artemisinin resistance in vitro and in vivo. We investigated the prevalence of mutations in PfK13 from sporozoite-stage parasites isolated from the salivary glands of Anopheles dirus mosquitoes. Mosquitoes were caught by human-landing catches at two locations within the Khanh Phu commune, South-Central Vietnam. Identification of Anopheles species was performed based on morphological features and nucleotide sequence analysis. Sporozoite-infected salivary glands were stored on filter paper and at 4-6 °C. A nested-PCR targeting the small subunit ribosomal RNA gene was used for Plasmodium species identification. Pfk13 was amplified by nested PCR, and subjected to nucleotide sequencing. Five of 33 P. falciparum sporozoite samples carried the P553L mutation at the PfK13 locus. This mutation has been recorded previously in Vietnam, but not in Khanh Hoa province, were surveys of K13 polymorphism have not previously been carried out. These results demonstrate the utility of mosquito-stage malaria parasite samples for studies on the molecular epidemiology of drug resistance.

  18. Sequence stratigraphy and hydrocarbon potential of the Phu Khanh Basin offshore central Vietnam, South China Sea

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Lee, G.H.; Watkins, J.S.

    1996-12-31

    The Phu Khanh Basin offshore central Vietnam is one of the few untested basins on the Vietnam margin of the South China Sea. Analysis of over 1,600 km of multi-channel seismic reflection data indicates that the Phu Khanh Basin follows a typical rift-margin order: faulted basement, synrift sedimentation, a breakup unconformity, and postrift sedimentation. Postrift sedimentation consists of a transgressive phase characterized by ramp-like depositional geometries followed by a regressive phase characterized by prograding sequences. An early middle Miocene unconformity separates these two phases. During the transgressive phase rising sea level provided favorable conditions for carbonate buildup development. The regressivemore » interval contains a number of third-order depositional sequences composed of seismically resolvable lowstand, highstand, and rarely, transgressive systems tracts. Lacustrine sediments deposited in graben and half-graben lakes during the rifting stage are probably the principal source rocks. Fractured and/or weathered basement, carbonate complexes, basinfloor fans, and shallows water sands may have good reservoir quality. Potential traps include basement hills, carbonate complexes, fault taps, and stratigraphic traps within lowstand systems tracts. Hydrocarbon indicators such as flat spots, bright spots, gas chimneys with gas mounds on the seafloor occur at a number of locations.« less

  19. Sequence stratigraphy and hydrocarbon potential of the Phu Khanh Basin offshore central Vietnam, South China Sea

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Lee, G.H.; Watkins, J.S.

    1996-01-01

    The Phu Khanh Basin offshore central Vietnam is one of the few untested basins on the Vietnam margin of the South China Sea. Analysis of over 1,600 km of multi-channel seismic reflection data indicates that the Phu Khanh Basin follows a typical rift-margin order: faulted basement, synrift sedimentation, a breakup unconformity, and postrift sedimentation. Postrift sedimentation consists of a transgressive phase characterized by ramp-like depositional geometries followed by a regressive phase characterized by prograding sequences. An early middle Miocene unconformity separates these two phases. During the transgressive phase rising sea level provided favorable conditions for carbonate buildup development. The regressivemore » interval contains a number of third-order depositional sequences composed of seismically resolvable lowstand, highstand, and rarely, transgressive systems tracts. Lacustrine sediments deposited in graben and half-graben lakes during the rifting stage are probably the principal source rocks. Fractured and/or weathered basement, carbonate complexes, basinfloor fans, and shallows water sands may have good reservoir quality. Potential traps include basement hills, carbonate complexes, fault taps, and stratigraphic traps within lowstand systems tracts. Hydrocarbon indicators such as flat spots, bright spots, gas chimneys with gas mounds on the seafloor occur at a number of locations.« less

  20. Modeling the impact of rubella vaccination in Vietnam.

    PubMed

    Vynnycky, Emilia; Yoshida, Lay Myint; Huyen, Dang Thi Thanh; Trung, Nguyen Dac; Toda, Kohei; Cuong, Nguyen Van; Thi Hong, Duong; Ariyoshi, Koya; Miyakawa, Masami; Moriuchi, Hiroyuki; Tho, Le Huu; Nguyen, Hien Anh; Duc Anh, Dang; Jit, Mark; Hien, Nguyen Tran

    2016-01-01

    Supported by GAVI Alliance, measles-rubella vaccination was introduced in Vietnam in 2014, involving a mass campaign among 1-14 year olds and routine immunization of children aged 9 months. We explore the impact on the incidence of Congenital Rubella Syndrome (CRS) during 2013-2050 of this strategy and variants involving women aged 15-35 years. We use an age and sex-structured dynamic transmission model, set up using recently-collected seroprevalence data from Central Vietnam, and also consider different levels of transmission and contact patterns. If the serological profile resembles that in Central Vietnam, the planned vaccination strategy could potentially prevent 125,000 CRS cases by 2050 in Vietnam, despite outbreaks predicted in the meantime. Targeting the initial campaign at 15-35 year old women with or without children aged 9 months-14 years led to sustained reductions in incidence, unless levels of ongoing transmission were medium-high before vaccination started. Assumptions about contact greatly influenced predictions if the initial campaign just targeted 15-35 year old women and/or levels of ongoing transmission were medium-high. Given increased interest in rubella vaccination, resulting from GAVI Alliance funding, the findings are relevant for many countries.

  1. Social sustainability of Mesocyclops biological control for dengue in South Vietnam.

    PubMed

    Tran, Thanh Tam; Olsen, Anna; Viennet, Elvina; Sleigh, Adrian

    2015-01-01

    Copepod Mesocyclops as biological control agents for dengue was previously proven to be effective and sustainable in the Northern and Central provinces of Vietnam. We aim to study social sustainability of Mesocyclops intervention in south Vietnam. Both quantitative and qualitative approaches were used. An entomological survey was carried out in 100 random households of Chanh An commune, Vinh Long Province. Aedes larval indices and Mesocyclops prevalence were compared with historical pre- and post-intervention values. In the same commune, using purposeful sampling, sixteen semi-structured interviews (1 villager leader, 1 local doctor, 10 villagers, 2 teachers, 2 entomology officials), and a focus group discussion (6 Mesocyclops program collaborators) explored water storage habits, beliefs about dengue prevention and behaviour related to Mesocyclops. Thematic analysis was conducted to interpret the qualitative findings. Aedes abundance increased after responsibility for Mesocyclops intervention moved from government to community in 2010, with post-transfer surges in Breteau Index, Container Index, and Larval Density Index. Larval increments coincided with decrease in Mesocyclops prevalence. Villagers had some knowledge of dengue but it was conflated with other mosquito borne diseases and understanding of Mesocyclops was incomplete. Program adoption among the villagers was limited. With reduced government support program collaborators reported limited capacity to conduct population monitoring, and instead targeted 'problem' households. Although the Mesocyclops program was highly sustainable in northern and central provinces of Vietnam, the intervention has not been consistently adopted by southern households in Chanh An commune. Limited education, household monitoring and government support are affecting sustainability. Findings were based on a small household sample visited over a short time period, so other evaluations are needed. However, our results suggest that government support for the Mesocyclops program is still required in this part of Vietnam. Copyright © 2014 The Authors. Published by Elsevier B.V. All rights reserved.

  2. The Vietnam Era Twin Registry: a resource for medical research.

    PubMed Central

    Henderson, W G; Eisen, S; Goldberg, J; True, W R; Barnes, J E; Vitek, M E

    1990-01-01

    The Vietnam Era Twin Registry consists of 4,774 male-male twin pairs born between 1939 and 1957 with both brothers having served in the United States military during the Vietnam War. The registry was originally developed to provide the best control group for Vietnam-exposed servicemen to study the long-term health consequences of service in Vietnam. Recognizing the potential value of the registry for other areas of medical research, the Department of Veterans Affairs in 1988 opened the registry for use by both VA and non-VA investigators. The existence of centralized VA data bases for deaths and VA hospitalizations will strengthen future followup of the twins. This article describes the characteristics of the registry population and the process for accessing the registry. PMID:2116638

  3. Constructions of gender in Vietnam: in pursuit of the 'Three Criteria'.

    PubMed

    Schuler, Sidney Ruth; Hoang, Tu Anh; Vu, Song Ha; Tan, Hung Minh; Bui, Thi Thanh Mai; Pham, Vu Thien

    2006-01-01

    Vietnam has advanced far beyond most other developing countries and, indeed, surpasses many developed countries in adopting a legal framework based on gender equality, and in creating institutions and programmes to support women's advancement. Inegalitarian gender norms have also persisted, however. The Vietnam Women's Union promotes women's educational, political and economic advancement but simultaneously exhorts women to pay attention to their Confucian role of maintaining family hierarchy and harmony. This paper presents findings from qualitative research examining gender relations at the grassroots level in central Vietnam. It argues that the Vietnam Women's Union could support women more effectively by promoting greater diversity in gender norms and by initiating a public discussion to address the pressures women face in trying to achieve ideals that are often experienced as contradictory and unattainable.

  4. Molecular and morphological variation of Paragonimus westermani in Vietnam with records of new second intermediate crab hosts and a new locality in a northern province.

    PubMed

    Doanh, N Pham; Tu, A Luu; Bui, T Dung; Loan, T Ho; Nonaka, Nariaki; Horii, Yoichiro; Blair, David; Nawa, Yukifumi

    2016-10-01

    Paragonimus westermani is one of the most medically important lung flukes and is widely distributed in Asia. It exhibits considerable variation in morphological, genetic and biological features. In central provinces of Vietnam, a high prevalence of metacercariae of this species has been reported from the crab intermediate host, Vietopotamon aluoiense. In this study, we detected P. westermani metacercariae in two additional crab hosts, Donopotamon haii in Quang Tri Province, central Vietnam and Indochinamon tannanti in Yen Bai Province in the north. The latter is a new locality for P. westermani in a northern region of Vietnam where P. heterotremus is the only species currently known to cause human paragonimiasis. Paragonimus westermani metacercariae found in Vietnam showed considerable morphological variation but slight genetic variation based on DNA sequences from the nuclear ribosomal ITS2 region and the mitochondrial 16S gene. Co-infection of the same individual crabs with P. westermani and P. heterotremus and/or some other Paragonimus species was found frequently, suggesting potential for co-infection in humans. The findings of the present study emphasize the need for highly specific molecular and immunodiagnostic methods to differentially diagnose between P. westermani and P. heterotremus infections.

  5. Learners' Motivation and Identity in the Vietnamese EFL Writing Classroom

    ERIC Educational Resources Information Center

    Tran, Ly Thi

    2007-01-01

    The study reported in this paper explores issues of motivation and learners' identity in English as a Foreign Language (EFL) writing classroom in Vietnam from the perspectives of the learners. It was conducted with thirty English-major students at a university in central Vietnam. While relevant literature appears to place much emphasis on…

  6. The black flies (Diptera: Simuliidae) from Thua Thien Hue and Lam Dong Provinces, Vietnam.

    PubMed

    Takaoka, Hiroyuki; Sofian-Azirun, Mohd; Ya'cob, Zubaidah; Chen, Chee Dhang; Lau, Koon Weng; Pham, Xuan Da

    2015-05-21

    Surveys of pupae and larvae of black flies (Diptera: Simuliidae) were carried out in Thua Thien Hue Province of central Vietnam, and Lam Dong Province of southern Vietnam in 2014. A total of 26 species belonging to the genus Simulium were collected, consisting of eight known species, one newly recorded species, and 17 new species (of which three species of the subgenus Nevermannia were described in 2014). The remaining 14 new species (nine of the subgenus Gomphostilbia and five of the subgenus Simulium) are described here based on females, males, pupae and mature larvae. The total number of species of black flies in Vietnam is now 46. Keys to identify all 26 species recorded from the two provinces of Vietnam are given for females, males, pupae and mature larvae.

  7. Reducing neonatal infections in south and south central Vietnam: the views of healthcare providers

    PubMed Central

    2013-01-01

    Background Infection causes neonatal mortality in both high and low income countries. While simple interventions to prevent neonatal infection are available, they are often poorly understood and implemented by clinicians. A basic understanding of healthcare providers' perceptions of infection control provides a platform for improving current practices. Our aim was to explore the views of healthcare providers in provincial hospitals in south and south central Vietnam to inform the design of programmes to improve neonatal infection prevention and control. Methods All fifty-four participants who attended a workshop on infection prevention and control were asked to complete an anonymous, written questionnaire identifying their priorities for improving neonatal infection prevention and control in provincial hospitals in south and south central Vietnam. Results Hand washing, exclusive breastfeeding and safe disposal of medical waste were nominated by most participants as priorities for preventing neonatal infections. Education through instructional posters and written guidelines, family contact, kangaroo-mother-care, limitation of invasive procedures and screening for maternal GBS infection were advocated by a smaller proportion of participants. Conclusions The opinions of neonatal healthcare providers at the workshop accurately reflect some of the current international recommendations for infection prevention. However, other important recommendations were not commonly identified by participants and need to be reinforced. Our results will be used to design interventions to improve infection prevention in Vietnam, and may be relevant to other low-resource countries. PMID:23570330

  8. Upper Miocene-Pliocene provenance evolution of the Central Canyon in northwestern South China Sea

    NASA Astrophysics Data System (ADS)

    Cui, Yuchi; Shao, Lei; Qiao, Peijun; Pei, Jianxiang; Zhang, Daojun; Tran, Huyen

    2018-06-01

    Provenance studies of the Central Canyon, Qiongdongnan Basin has provided significant insights into paleographic and sedimentology research of the South China Sea (SCS). A suite of geochemical approaches mainly including rare earth elemental (REE) analysis and detrital zircon U-Pb dating has been systematically applied to the "source-to-sink" system involving our upper Miocene-Pliocene Central Canyon sediments and surrounding potential source areas. Based on samples tracing the entire course of the Central Canyon, REE distribution patterns indicate that the western channel was generally characterized by positive Eu anomalies in larger proportion, in contrast to the dominance of negative values of its eastern side during late Miocene-Pliocene. Additionally, for the whole canyon and farther regions of Qiongdongnan Basin, the number of samples bearing negative Eu anomalies tended to increase within younger geological strata. On the other hand, U-Pb geochronology results suggest a wide Proterozoic to Mesozoic age range with peak complexity in Yanshanian, Indosinian, Caledonian and Jinningian periods. However in detail, age combination of most western samples displayed older-age signatures than the eastern. To make it more evidently, western boreholes of the Central Canyon are mainly characterized with confined Indosinian and Caledonian clusters which show great comparability with mafic-to-ultramafic source of Kontum Massif of Central Vietnam, while eastern samples largely bear with distinguishable Yanshanian and Indosinian peaks which more resemble with Hainan Island. Based on geochemistry and geochronology analyses, two significant suppliers and sedimentary infilling processes are generated: (1) the Indosinian collision orogenic belt in central-northern Vietnam, Indochina has ever played significant role in Central Canyon sedimentary evolution, (2) Hainan Island once as a typical provenance restricted within eastern Central Canyon, has been enlarging its influence into the whole channel, even into the farther western regions of Qiongdongnan Basin.

  9. First record of Anopheles minimus C and significant decrease of An. minimus A in central Vietnam.

    PubMed

    Garros, Claire; Marchand, Ron P; Quang, Nguyen Tuyen; Hai, Nguyen Son; Manguin, Sylvie

    2005-06-01

    Before August 1998, in the Khanh Phu commune (central Vietnam), Anopheles minimus s.l. individuals were identified as species A and showed the typical species A wing form. After a significant decrease over the 3 years 1999-2001, an increase in 2002 of An. minimus s.l. possessing a different wing pattern was observed. To determine the specific status of the An. minimus species collected in 2002 and to follow changes in the species composition, an allele-specific polymerase chain reaction was applied to samples collected from 1993 to 2002. This study reports the first record of An. minimus C in central Vietnam and, since 1998, a significant reduction of An. minimus A that coincided with the wide use of permethrin-treated bednets. This change in anopheline composition may have important consequences on malaria transmission. This work shows that the geographic distribution of malaria vectors in southeast Asia is only partially known and highlights the importance of species identification for understanding changes in the vector composition as a result of selective vector control.

  10. Central Vietnam climate over the past five centuries from cypress tree rings

    NASA Astrophysics Data System (ADS)

    Buckley, Brendan M.; Stahle, Daniel K.; Luu, Hong Truong; Wang, S.-Y. Simon; Nguyen, Tran Quoc Trung; Thomas, Philip; Le, Canh Nam; Ton, That Minh; Bui, The Hoang; Nguyen, Van Thiet

    2017-06-01

    We present the first crossdated tree ring record from central Vietnam, derived from the growth rings of the rare cypress Fokienia hodginsii from the mountains of Quang Nam Province near the Laos border. The Quang Nam Fokienia hodginsii time series (QNFH), based on the crossdated sequences of 71 increment core samples from 37 mature trees, is the third published dendrochronological record from this species. The record extends 667 years from AD 1347 to 2013 and exhibits a mean series intercorrelation of 0.526, similarly significant with the first two published Fokienia hodginsii records: 0.474 for Mu Cang Chai (MCFH) and 0.578 for Bidoup-Nui Ba National Park (BDFH) in the north and south of Vietnam, respectively. The Expressed Population Signal (EPS) for the QNFH record exceeds the generally accepted threshold of 0.85 back to AD 1567, but remains above 0.8 back to 1550. Similar to the MCFH and BDFH records, QNFH expresses statistically significant linkages to regional hydroclimate metrics and the El Niño-Southern Oscillation. Here we present a reconstruction of the Standardized Precipitation Evapotranspiration Index for the month of April, averaged over a large region of Southeast Asia. As with prior studies we demonstrate that cool phase (La Niña) and warm phase (El Niño) events are linked to regional wet and dry conditions, respectively, with linkages to modulation of the surface water temperature over the adjacent sea to the east of Vietnam as well as the Indian Ocean. A late eighteenth century megadrought that is expressed widely across South and Southeast Asia, and notably from the MCFH and BDFH records described above, is not as pronounced in Central Vietnam and we explore the reasons why.

  11. Multiscale analyses on a massive immigration process of Sogatella furcifera (Horváth) in south-central China: influences of synoptic-scale meteorological conditions and topography

    NASA Astrophysics Data System (ADS)

    Wu, Qiu-Lin; Westbrook, John K.; Hu, Gao; Lu, Ming-Hong; Liu, Wan-Cai; Sword, Gregory A.; Zhai, Bao-Ping

    2018-04-01

    Mass landings of migrating white-backed planthopper, Sogatella furcifera (Horváth), can lead to severe outbreaks that cause heavy losses for rice production in East Asia. South-central China is the main infestation area on the annual migration loop of S. furcifera between the northern Indo-China Peninsula and mainland China; however, rice planthopper species are not able to survive in this region over winter. In this study, a trajectory analysis of movements from population source areas and a spatiotemporal dynamic analysis of mesoscale and synoptic weather conditions from 7 to 10 May 2012 were conducted using the weather research and forecasting (WRF) model to identify source areas of immigrants and determine how weather and topographic terrain influence insect landing. A sensitivity experiment was conducted with reduced topography using the WRF model to explain the associations among rainfall, topography, and light-trap catches of S. furcifera. The trajectory modeling results suggest that the source areas of S. furcifera immigrants into south-central China from 8 to 10 May were mainly southern Guangxi, northern Vietnam, and north-central Vietnam. The appearance of enormous catches of immigrant S. furcifera coincided with a period of rainstorms. The formation of transporting southerly winds was strongly associated with the topographic terrain. Additionally, the rainfall distribution and intensity over south-central China significantly decreased when topography was reduced in the model and were directly affected by wind circulation, which was associated with mountainous terrain that caused strong convection. This study indicates that migrating populations of S. furcifera were carried by the southwesterly low-level jets and that topographically induced convergent winds, precipitation, low temperatures, and wind shear acted as key factors that led to massive landings.

  12. Multiscale analyses on a massive immigration process of Sogatella furcifera (Horváth) in south-central China: influences of synoptic-scale meteorological conditions and topography.

    PubMed

    Wu, Qiu-Lin; Westbrook, John K; Hu, Gao; Lu, Ming-Hong; Liu, Wan-Cai; Sword, Gregory A; Zhai, Bao-Ping

    2018-04-30

    Mass landings of migrating white-backed planthopper, Sogatella furcifera (Horváth), can lead to severe outbreaks that cause heavy losses for rice production in East Asia. South-central China is the main infestation area on the annual migration loop of S. furcifera between the northern Indo-China Peninsula and mainland China; however, rice planthopper species are not able to survive in this region over winter. In this study, a trajectory analysis of movements from population source areas and a spatiotemporal dynamic analysis of mesoscale and synoptic weather conditions from 7 to 10 May 2012 were conducted using the weather research and forecasting (WRF) model to identify source areas of immigrants and determine how weather and topographic terrain influence insect landing. A sensitivity experiment was conducted with reduced topography using the WRF model to explain the associations among rainfall, topography, and light-trap catches of S. furcifera. The trajectory modeling results suggest that the source areas of S. furcifera immigrants into south-central China from 8 to 10 May were mainly southern Guangxi, northern Vietnam, and north-central Vietnam. The appearance of enormous catches of immigrant S. furcifera coincided with a period of rainstorms. The formation of transporting southerly winds was strongly associated with the topographic terrain. Additionally, the rainfall distribution and intensity over south-central China significantly decreased when topography was reduced in the model and were directly affected by wind circulation, which was associated with mountainous terrain that caused strong convection. This study indicates that migrating populations of S. furcifera were carried by the southwesterly low-level jets and that topographically induced convergent winds, precipitation, low temperatures, and wind shear acted as key factors that led to massive landings.

  13. Ensemble climate projections of mean and extreme rainfall over Vietnam

    NASA Astrophysics Data System (ADS)

    Raghavan, S. V.; Vu, M. T.; Liong, S. Y.

    2017-01-01

    A systematic ensemble high resolution climate modelling study over Vietnam has been performed using the PRECIS model developed by the Hadley Center in UK. A 5 member subset of the 17-member Perturbed Physics Ensembles (PPE) of the Quantifying Uncertainty in Model Predictions (QUMP) project were simulated and analyzed. The PRECIS model simulations were conducted at a horizontal resolution of 25 km for the baseline period 1961-1990 and a future climate period 2061-2090 under scenario A1B. The results of model simulations show that the model was able to reproduce the mean state of climate over Vietnam when compared to observations. The annual cycles and seasonal averages of precipitation over different sub-regions of Vietnam show the ability of the model in also reproducing the observed peak and magnitude of monthly rainfall. The climate extremes of precipitation were also fairly well captured. Projections of future climate show both increases and decreases in the mean climate over different regions of Vietnam. The analyses of future extreme rainfall using the STARDEX precipitation indices show an increase in 90th percentile precipitation (P90p) over the northern provinces (15-25%) and central highland (5-10%) and over southern Vietnam (up to 5%). The total number of wet days (Prcp) indicates a decrease of about 5-10% all over Vietnam. Consequently, an increase in the wet day rainfall intensity (SDII), is likely inferring that the projected rainfall would be much more severe and intense which have the potential to cause flooding in some regions. Risks due to extreme drought also exist in other regions where the number of wet days decreases. In addition, the maximum 5 day consecutive rainfall (R5d) increases by 20-25% over northern Vietnam but decreases in a similar range over the central and southern Vietnam. These results have strong implications for the management water resources, agriculture, bio diversity and economy and serve as some useful findings to be considered by the policy makers within a wider range of climate uncertainties.

  14. Epidemiology of forest malaria in central Vietnam: a large scale cross-sectional survey.

    PubMed

    Erhart, Annette; Ngo, Duc Thang; Phan, Van Ky; Ta, Thi Tinh; Van Overmeir, Chantal; Speybroeck, Niko; Obsomer, Valerie; Le, Xuan Hung; Le, Khanh Thuan; Coosemans, Marc; D'alessandro, Umberto

    2005-12-08

    In Vietnam, a large proportion of all malaria cases and deaths occurs in the central mountainous and forested part of the country. Indeed, forest malaria, despite intensive control activities, is still a major problem which raises several questions about its dynamics.A large-scale malaria morbidity survey to measure malaria endemicity and identify important risk factors was carried out in 43 villages situated in a forested area of Ninh Thuan province, south central Vietnam. Four thousand three hundred and six randomly selected individuals, aged 10-60 years, participated in the survey. Rag Lays (86%), traditionally living in the forest and practising "slash and burn" cultivation represented the most common ethnic group. The overall parasite rate was 13.3% (range [0-42.3] while Plasmodium falciparum seroprevalence was 25.5% (range [2.1-75.6]). Mapping of these two variables showed a patchy distribution, suggesting that risk factors other than remoteness and forest proximity modulated the human-vector interactions. This was confirmed by the results of the multivariate-adjusted analysis, showing that forest work was a significant risk factor for malaria infection, further increased by staying in the forest overnight (OR= 2.86; 95%CI [1.62; 5.07]). Rag Lays had a higher risk of malaria infection, which inversely related to education level and socio-economic status. Women were less at risk than men (OR = 0.71; 95%CI [0.59; 0.86]), a possible consequence of different behaviour. This study confirms that malaria endemicity is still relatively high in this area and that the dynamics of transmission is constantly modulated by the behaviour of both humans and vectors. A well-targeted intervention reducing the "vector/forest worker" interaction, based on long-lasting insecticidal material, could be appropriate in this environment.

  15. Epidemiology of forest malaria in central Vietnam: a large scale cross-sectional survey

    PubMed Central

    Erhart, Annette; Thang, Ngo Duc; Van Ky, Phan; Tinh, Ta Thi; Van Overmeir, Chantal; Speybroeck, Niko; Obsomer, Valerie; Hung, Le Xuan; Thuan, Le Khanh; Coosemans, Marc; D'alessandro, Umberto

    2005-01-01

    In Vietnam, a large proportion of all malaria cases and deaths occurs in the central mountainous and forested part of the country. Indeed, forest malaria, despite intensive control activities, is still a major problem which raises several questions about its dynamics. A large-scale malaria morbidity survey to measure malaria endemicity and identify important risk factors was carried out in 43 villages situated in a forested area of Ninh Thuan province, south central Vietnam. Four thousand three hundred and six randomly selected individuals, aged 10–60 years, participated in the survey. Rag Lays (86%), traditionally living in the forest and practising "slash and burn" cultivation represented the most common ethnic group. The overall parasite rate was 13.3% (range [0–42.3] while Plasmodium falciparum seroprevalence was 25.5% (range [2.1–75.6]). Mapping of these two variables showed a patchy distribution, suggesting that risk factors other than remoteness and forest proximity modulated the human-vector interactions. This was confirmed by the results of the multivariate-adjusted analysis, showing that forest work was a significant risk factor for malaria infection, further increased by staying in the forest overnight (OR= 2.86; 95%CI [1.62; 5.07]). Rag Lays had a higher risk of malaria infection, which inversely related to education level and socio-economic status. Women were less at risk than men (OR = 0.71; 95%CI [0.59; 0.86]), a possible consequence of different behaviour. This study confirms that malaria endemicity is still relatively high in this area and that the dynamics of transmission is constantly modulated by the behaviour of both humans and vectors. A well-targeted intervention reducing the "vector/forest worker" interaction, based on long-lasting insecticidal material, could be appropriate in this environment. PMID:16336671

  16. Prevalence, perception and factors associated with diabetes mellitus among the adult population in central Vietnam: a population-based, cross-sectional seroepidemiological survey.

    PubMed

    Miyakawa, Masami; Shimizu, Takayuki; Van Dat, Nguyen; Thanh, Phung; Thuy, Pham Thi Phuong; Anh, Nguyen Thi Hoang; Chau, Nguyen Huu; Matsushita, Yumi; Kajio, Hiroshi; Mai, Vien Quang; Hachiya, Masahiko

    2017-04-05

    Diabetes Mellitus (DM) has rapidly become a major public health concern in Vietnam. Although the prevalence of DM has been studied in northern and southern Vietnam, little data are available for the central region. Therefore, the aims of this survey were to estimate the prevalence of DM and to identify the perception of and factors associated with DM among the adult population in central Vietnam. We conducted a cross-sectional, population-based survey in Khánh Hòa Province, Vietnam in December 2014 using three-stage cluster sampling and probability proportional to size sampling in line with the World Health Organization STEPwise approach. Four hundred and eighty residents aged 20-70 years were selected from 30 villages in 10 wards/communes. After obtaining informed consent, all residents participated in interviews regarding lifestyle, medical history, and perception of DM and underwent physical measurements and blood examination for fasting blood glucose and glycated hemoglobin. Factors associated with DM were analyzed using a logistic regression model. A total of 376 residents were enrolled (response rate: 78.3%; females: 59%; rural residents: 61%). Among the participants, 14.3% and 18.9% of males and females, respectively, were classified as overweight/obese according to body mass index (BMI), 37.7% and 22.1%, respectively, had hypertension, and 36.4% and 11.7% had metabolic syndrome. The prevalence of DM in the entire population was 7.2% (27/376; 95% confidence interval [CI]: 4.6-9.8). Participants aged 60-70 years were more likely to have DM than those aged 30-39 years (adjusted odds ratio [aOR]: 8.7; 95%CI: 1.4-56.0), and participants classified as obese were more likely to have DM than those with normal or low BMI (aOR: 10.2; 95%CI: 2.2-50.2). Furthermore, more than two-thirds (254/376, 67.6%) of the participants either did not understand or had never heard of DM, and less than half of the DM cases (12/27, 44%) were aware of their history of DM. The results of this study suggested that the prevalence of DM among the adult population in central Vietnam was slightly higher than that in other areas. Additional research is needed to further explore perceptions of and practices regarding DM.

  17. Population Genetics of Plasmodium vivax in Four Rural Communities in Central Vietnam

    PubMed Central

    Hong, Nguyen Van; Delgado-Ratto, Christopher; Thanh, Pham Vinh; Van den Eede, Peter; Guetens, Pieter; Binh, Nguyen Thi Huong; Phuc, Bui Quang; Duong, Tran Thanh; Van Geertruyden, Jean Pierre; D’Alessandro, Umberto; Erhart, Annette; Rosanas-Urgell, Anna

    2016-01-01

    Background The burden of malaria in Vietnam has drastically reduced, prompting the National Malaria Control Program to officially engage in elimination efforts. Plasmodium vivax is becoming increasingly prevalent, remaining a major problem in the country's central and southern provinces. A better understanding of P. vivax genetic diversity and structure of local parasite populations will provide baseline data for the evaluation and improvement of current efforts for control and elimination. The aim of this study was to examine the population genetics and structure of P. vivax isolates from four communities in Tra Leng commune, Nam Tra My district in Quang Nam, Central Vietnam. Methodology/Principal Findings P. vivax mono infections collected from 234 individuals between April 2009 and December 2010 were successfully analyzed using a panel of 14 microsatellite markers. Isolates displayed moderate genetic diversity (He = 0.68), with no significant differences between study communities. Polyclonal infections were frequent (71.4%) with a mean multiplicity of infection of 1.91 isolates/person. Low but significant genetic differentiation (FST value from -0.05 to 0.18) was observed between the community across the river and the other communities. Strong linkage disequilibrium (IAS = 0.113, p < 0.001) was detected across all communities, suggesting gene flow within and among them. Using multiple approaches, 101 haplotypes were grouped into two genetic clusters, while 60.4% of haplotypes were admixed. Conclusions/Significance In this area of Central Vietnam, where malaria transmission has decreased significantly over the past decade, there was moderate genetic diversity and high occurrence of polyclonal infections. Local human populations have frequent social and economic interactions that facilitate gene flow and inbreeding among parasite populations, while decreasing population structure. Findings provide important information on parasites populations circulating in the study area and are relevant to current malaria elimination efforts. PMID:26872387

  18. Particulate matter concentration mapping from MODIS satellite data: a Vietnamese case study

    NASA Astrophysics Data System (ADS)

    Nguyen, Thanh T. N.; Bui, Hung Q.; Pham, Ha V.; Luu, Hung V.; Man, Chuc D.; Pham, Hai N.; Le, Ha T.; Nguyen, Thuy T.

    2015-09-01

    Particulate Matter (PM) pollution is one of the most important air quality concerns in Vietnam. In this study, we integrate ground-based measurements, meteorological and satellite data to map temporal PM concentrations at a 10 × 10 km grid for the entire of Vietnam. We specifically used MODIS Aqua and Terra data and developed statistically-significant regression models to map and extend the ground-based PM concentrations. We validated our models over diverse geographic provinces i.e., North East, Red River Delta, North Central Coast and South Central Coast in Vietnam. Validation suggested good results for satellite-derived PM2.5 data compared to ground-based PM2.5 (n = 285, r2 = 0.411, RMSE = 20.299 μg m-3 and RE = 39.789%). Further, validation of satellite-derived PM2.5 on two independent datasets for North East and South Central Coast suggested similar results (n = 40, r2 = 0.455, RMSE = 21.512 μg m-3, RE = 45.236% and n = 45, r2 = 0.444, RMSE = 8.551 μg m-3, RE = 46.446% respectively). Also, our satellite-derived PM2.5 maps were able to replicate seasonal and spatial trends of ground-based measurements in four different regions. Our results highlight the potential use of MODIS datasets for PM estimation at a regional scale in Vietnam. However, model limitation in capturing maximal or minimal PM2.5 peaks needs further investigations on ground data, atmospheric conditions and physical aspects.

  19. Possible Source Populations of the White-backed Planthopper in the Greater Mekong Subregion Revealed by Mitochondrial DNA Analysis

    NASA Astrophysics Data System (ADS)

    Li, Xiang-Yong; Chu, Dong; Yin, Yan-Qiong; Zhao, Xue-Qing; Chen, Ai-Dong; Khay, Sathya; Douangboupha, Bounneuang; Kyaw, Mu Mu; Kongchuensin, Manita; Ngo, Vien Vinh; Nguyen, Chung Huy

    2016-12-01

    The white-backed planthopper, Sogatella furcifera (Horváth) (Hemiptera: Delphacidae), is a serious pest of rice in Asia. However, little is known regarding the migration of this pest insect from the Greater Mekong Subregion (GMS) including Cambodia, Laos, Myanmar (Burma), Thailand, and Vietnam, into China’s Yunnan Province. To determine the migration patterns of S. furcifera in the GMS and putative secondary immigration inside China’s Yunnan Province, we investigated the population genetic diversity, genetic structure, and gene flow of 42 S. furcifera populations across the six countries in the GMS by intensive sampling using mitochondrial genes. Our study revealed the potential emigration of S. furcifera from the GMS consists primarily of three major sources: 1) the S. furcifera from Laos and Vietnam migrate into south and southeast Yunnan, where they proceed to further migrate into northeast and central Yunnan; 2) the S. furcifera from Myanmar migrate into west Yunnan, and/or central Yunnan, and/or northeast Yunnan; 3) the S. furcifera from Cambodia migrate into southwest Yunnan, where the populations can migrate further into central Yunnan. The new data will not only be helpful in predicting population dynamics of the planthopper, but will also aid in regional control programs for this economically important pest insect.

  20. The Waves to Weather Challenge: Do Large-Scale Equatorial Waves Modulate Regional Rainfall in Southern Vietnam?

    NASA Astrophysics Data System (ADS)

    Fink, A. H.; van der Linden, R.; Phan-Van, T.; Pinto, J. G.

    2014-12-01

    About 85% of the annual precipitation in southern Vietnam (ca. 8-12°N, 104-110°E) occurs during the southwest monsoon season (June to October). Large-scale equatorial waves like the Madden-Julian Oscillation (MJO) and Convectively Coupled Equatorial Waves (CCEWs) are known to modulate the large-scale convective activity, often indicated by variations in (filtered) satellite-observed outgoing longwave radiation (OLR) anomalies. The present contribution analyses and quantifies the role of the MJO and CCEWs for rainfall not only in southern and central Vietnam as a whole, but also for smaller climatological sub-regions. Using circum-equatorial NOAA OLR (15°S-15°N), prominent spectral peaks are identified in wavenumber-frequency diagrams along the dispersion curves for the solutions of the shallow water equations. They are interpreted as CCEWs. Meridionally averaged wave-filtered OLR and its time derivatives are used to define phases and amplitudes of CCEWs. This will allow determining active and inactive phases of CCEWs in the vicinity of Vietnam. Eastward propagating deep convection is also related to the 30-90-day MJO. The OLR MJO Index (OMI) is used for the definition of convectively active and inactive phases of the MJO. TRMM 3B42 V7, APHRODITE MA V1101 data, and rain gauge measurements are used to investigate the relation between tropical wave phases and amplitudes and precipitation in southern and central Vietnam and adjacent regions. Results using the OMI are compared with those using the Real-time Multivariate MJO (RMM) Index. The major findings are: (a) Precipitation amounts in southern Vietnam are higher during convectively active phases of the MJO and CCEWs. The waves differ in terms of their relative importance for rainfall enhancement. (b) For increasing CCEW amplitudes, the difference between area-averaged precipitation during inactive and active phases increases. We provide evidence that precipitation amounts are higher when multiple wave types are in their convectively active phases over the Vietnam region.

  1. A new species of the cicada genus Semia Matsumura, 1917 (Hemiptera: Cicadidae) from Vietnam, with a key to the species of the genus.

    PubMed

    Pham, Hong-thai; Constant, Jerome

    2013-01-01

    A new species of cicada, Semia gialaiensis, is described from Kon Ka Kinh National Park in central Vietnam. Photos of the adult, illustrations of the male genitalia, a distribution map and biological data are provided. A key to the species of Semia based on the male adults is also given.

  2. Maintaining Teachers' Face in the Context of Change: Results from a Study of Vietnamese College Lecturers' Perceptions of Face

    ERIC Educational Resources Information Center

    Nguyen, Thi Quynh Trang

    2017-01-01

    Gaining and saving face are very important in Vietnam as a mechanism of social control, including the professional behaviour of teachers. Interviews with 15 lecturers (aged 24-37) at a teacher training college in a Central Coast province of Vietnam illustrated the relationship between their concepts of face and their beliefs about good teaching.…

  3. High burden of hepatocellular carcinoma and viral hepatitis in Southern and Central Vietnam: Experience of a large tertiary referral center, 2010 to 2016

    PubMed Central

    Nguyen-Dinh, Song-Huy; Do, Albert; Pham, Trang Ngoc Doan; Dao, Doan Y; Nguy, Trinh Nhu; Chen, Moon S

    2018-01-01

    AIM To examine the largest tertiary referral center in southern and central Vietnam from 2010 to 2016, evaluating epidemiological trends of hepatocellular carcinoma (HCC) and viral hepatitis B-C in this resource-limited setting. METHODS We extracted data of patients receiving care from Cho Ray Hospital (Ho Chi Minh City), the largest oncology referral center in southern and central Vietnam, from 2010 to 2016. We collected information on patient age, gender, geographic distribution, and disease characteristics including disease stage, tumor biomarker levels [serum alpha-fetoprotein (AFP), AFP-L3 isoform percentage, and prothrombin induced by induced by vitamin K absence-II], and serological testing for hepatitis B virus (HBV) and hepatitis C virus (HCV) infections. RESULTS Data from 24091 HCC patients were extracted, with sample demographics comprising mostly male (81.8%) and older age (however with 8.5% younger than 40 years old). This patient sample included a geographic catchment population of 56 million people (60% of the country’s total population of 92.7 million), derived from 38 provinces and municipalities in Vietnam. Chronic HBV infection was found in 62.3% of cases, and chronic HCV infection in 26.0%. HBV and HCV co-infection was seen in 2.7%. Cirrhosis was found in an estimated 30% to 40% of cases. Nine percent of patients were not found to have chronic viral hepatitis. Twenty three point two percent of the patients had a normal AFP level. A total of 2199 patients were tested with AFP-L3 and PIVKA II over two years, with 57.7% having elevated AFP-L3%, and 88.5% with elevated PIVKA II levels. Over this 7-year period, the incidence of HCC increased, with a large proportion of cases (overall 40.8%) presenting initially an advanced stage, not amendable to surgical or locoregional therapy. CONCLUSION HCC contributes significant health care burden in southern and central Vietnam, with increasing case volume over this seven-year period. Viral hepatitis likely explains this high HCC prevalence. PMID:29399285

  4. High burden of hepatocellular carcinoma and viral hepatitis in Southern and Central Vietnam: Experience of a large tertiary referral center, 2010 to 2016.

    PubMed

    Nguyen-Dinh, Song-Huy; Do, Albert; Pham, Trang Ngoc Doan; Dao, Doan Y; Nguy, Trinh Nhu; Chen, Moon S

    2018-01-27

    To examine the largest tertiary referral center in southern and central Vietnam from 2010 to 2016, evaluating epidemiological trends of hepatocellular carcinoma (HCC) and viral hepatitis B-C in this resource-limited setting. We extracted data of patients receiving care from Cho Ray Hospital (Ho Chi Minh City), the largest oncology referral center in southern and central Vietnam, from 2010 to 2016. We collected information on patient age, gender, geographic distribution, and disease characteristics including disease stage, tumor biomarker levels [serum alpha-fetoprotein (AFP), AFP-L3 isoform percentage, and prothrombin induced by induced by vitamin K absence-II], and serological testing for hepatitis B virus (HBV) and hepatitis C virus (HCV) infections. Data from 24091 HCC patients were extracted, with sample demographics comprising mostly male (81.8%) and older age (however with 8.5% younger than 40 years old). This patient sample included a geographic catchment population of 56 million people (60% of the country's total population of 92.7 million), derived from 38 provinces and municipalities in Vietnam. Chronic HBV infection was found in 62.3% of cases, and chronic HCV infection in 26.0%. HBV and HCV co-infection was seen in 2.7%. Cirrhosis was found in an estimated 30% to 40% of cases. Nine percent of patients were not found to have chronic viral hepatitis. Twenty three point two percent of the patients had a normal AFP level. A total of 2199 patients were tested with AFP-L3 and PIVKA II over two years, with 57.7% having elevated AFP-L3%, and 88.5% with elevated PIVKA II levels. Over this 7-year period, the incidence of HCC increased, with a large proportion of cases (overall 40.8%) presenting initially an advanced stage, not amendable to surgical or locoregional therapy. HCC contributes significant health care burden in southern and central Vietnam, with increasing case volume over this seven-year period. Viral hepatitis likely explains this high HCC prevalence.

  5. Vietnam: The Political Economy of Education in a "Socialist" Periphery

    ERIC Educational Resources Information Center

    London, Jonathan D.

    2006-01-01

    In this article I examine historic changes in the goals, conduct and outcomes of education policies in Vietnam from the 1940s to the present, under the Communist Party of Vietnam. Recent studies of Vietnam's education system centre on econometric and demographic analysis of education data dating back to the early 1990s, when Vietnam began an…

  6. Occurrence of 1153 organic micropollutants in the aquatic environment of Vietnam.

    PubMed

    Chau, H T C; Kadokami, K; Duong, H T; Kong, L; Nguyen, T T; Nguyen, T Q; Ito, Y

    2018-03-01

    The rapid increase in the number and volume of chemical substances being used in modern society has been accompanied by a large number of potentially hazardous chemicals being found in environmental samples. In Vietnam, the monitoring of chemical substances is mainly limited to a small number of known pollutants in spite of rapid economic growth and urbanization, and there is an urgent need to examine a large number of chemicals to prevent impacts from expanding environmental pollution. However, it is difficult to analyze a large number of chemicals using existing methods, because they are time consuming and expensive. In the present study, we determined 1153 substances to grasp a pollution picture of microcontaminants in the aquatic environment. To achieve this objective, we have used two comprehensive analytical methods: (1) solid-phase extraction (SPE) and LC-TOF-MS analysis, and (2) SPE and GC-MS analysis. We collected 42 samples from northern (the Red River and Hanoi), central (Hue and Danang), and southern (Ho Chi Minh City and Saigon-Dongnai River) Vietnam. One hundred and sixty-five compounds were detected at least once. The compounds detected most frequently (>40 % samples) at μg/L concentrations were sterols (cholesterol, beta-sitosterol, stigmasterol, coprostanol), phthalates (bis(2-ethylhexyl) phthalate and di-n-butyl phthalate), and pharmaceutical and personal care products (caffeine, metformin). These contaminants were detected at almost the same detection frequency as in developed countries. The results reveal that surface waters in Vietnam, particularly in the center of large cities, are polluted by a large number of organic micropollutants, with households and business activities as the major sources. In addition, risk quotients (MEC/PNEC values) for nonylphenol, sulfamethoxazole, ampicillin, acetaminophen, erythromycin and clarithromycin were higher than 1, which indicates a possibility of adverse effects on aquatic ecosystems.

  7. Geographical variation in the skeletal morphology of red jungle fowl.

    PubMed

    Endo, H; Tsunekawa, N; Sonoe, M; Sasaki, Tї; Ogawa, H; Amano, T; Nguyen, T S; Phimphachanhvongsod, V; Kudo, K; Yonezawa, T; Akishinonomiya, F

    2017-08-01

    1. The skulls and postcranial skeletons of the red jungle fowl (Gallus gallus) were compared osteometrically between the populations from North and South Vietnam, North and Central Laos and Southeast Bangladesh. The populations include the three subspecies of G. g. spadiceus, G. g. gallus and G. g. murghi and were sampled to reveal the geographical morphological variations among populations in G. gallus. 2. The morphometric characteristics of subspecies murghi could be clearly distinguished from those of the other subspecies using a canonical discriminant analysis. However, the size and shape of the skull of the gallus population from South Vietnam were not statistically different from that of the subspecies spadiceus from North Laos. The canonical discriminant scores also clearly indicated that there were morphological similarities in the skulls of the populations from North Laos and South Vietnam. 3. From the results, therefore, it is concluded that red jungle fowls do not exhibit high levels of osteometric variation between geographical localities at least within the Indochinese Peninsula. 4. This contrasts with previous studies which have described these subspecies as having various external morphological differences and have argued that zoogeographical barriers exist between the north and south areas of the Indochinese Peninsula.

  8. Analysis of Vietnamization: Summary and Evaluation

    DTIC Science & Technology

    1973-11-01

    Ellsberg, Daniel . Some Lessons from Failure in Vietnam, P-4036. Santa Monica: The RAND Corp., July 1969. Fulbright, J. William (ed.). The Vietnam...34 Chira and North Vietnam: Two Revolutionary Paths, " Part I, Current Scene, Vol. IX, No. II (Nov 7, 1971), Part II, Current Scene. Vol. IX, No. IZ (Doc 7

  9. Toxic Epidemics: Agent Orange Sickness in Vietnam and the United States.

    PubMed

    Uesugi, Tak

    2016-01-01

    Social scientists studying toxic epidemics have often endeavored to shed light on the differences between scientists' and nonscientists' epistemic perspectives. Yet, little attention has been paid to the processes through which a toxic epidemic emerges as a phenomenon. A Luoi Valley of Central Vietnam was extensively sprayed with chemical defoliants (including Agent Orange) during the Vietnam War. The latent toxic effects of these chemicals, however, went largely unnoticed until the late 1990s. By juxtaposing the history through which the notion of "Agent Orange Sickness" emerged in the United States with an ethnographic study of A Luoi, I explore the notion of poison under which Agent Orange became recognizable as a poison.

  10. Prevalence of Fasciola in cattle and of its intermediate host Lymnaea snails in central Vietnam.

    PubMed

    Nguyen, Sam Thi; Nguyen, Duc Tan; Van Nguyen, Thoai; Huynh, Vu Vy; Le, Duc Quyet; Fukuda, Yasuhiro; Nakai, Yutaka

    2012-12-01

    The aims of this study were to investigate the prevalence of natural Fasciola infections in both the definitive hosts (cattle) and the intermediate hosts (Lymnaea snails) in central Vietnam. A total of 1,075 fecal samples, randomly collected from cattle in Binh Dinh, Khanh Hoa, and Phu Yen provinces, were examined for Fasciola eggs by a sedimentation method. The overall prevalence of Fasciola was 45.3 %. A subset of the animals (235) was also screened for antibodies against Fasciola by an enzyme-linked immunosorbent assay. Overall, 46.3 % of these animals were shedding Fasciola eggs while 87.2 % were Fasciola seropositive. A lower prevalence of Fasciola was observed in calves ≤ 2 years of age (37.6 %) compared to that in cattle >2 years of age (53.7 %) (p < 0.05). The prevalence in the rainy season (50.8 %) was significantly different to that in the dry season (38.1 %) (p < 0.05). Of the 3.269 Lymnaea viridis and 1.128 Lymnaea swinhoei examined, 31 (0.95 %) and seven (0.62 %), respectively, were found to be infected with Fasciola. This appears to be the first epidemiological survey of the prevalence of Fasciola in cattle and snails in these three provinces in central Vietnam.

  11. Provenance evolution in the northern South China Sea and its implication of paleo-drainage systems from Eocene to Miocene

    NASA Astrophysics Data System (ADS)

    Cui, Y.; Shao, L.; Qiao, P.

    2017-12-01

    Geochemistry analysis and detrital zircon U-Pb geochronology aim to fully investigate the "source to sink" patterns of northern South China Sea (SCS) from Eocene to Miocene. Evolutional history of the surrounding drainage system has been highly focused on, in comparison to sedimentary characteristics of the SCS basins. Rapid local provenances were prevailed while large-scale fluvial transport remained to evolve during Eocene. Since early Oligocene, sediments from the South China were more abundantly delivered to the northeastern Pearl River Mouth Basin in addition to Dongsha volcanism supplement. Aside from intrabasinal provenances, long-distance transport started to play significant role in Zhu1 Depression, possibly reaching western and southern Baiyun Sag, partially. Western Qiongdongnan Basin might accept sediments from central Vietnam with its eastern area more affected from Hainan Island and Southern Uplift. In the late Oligocene, due to drastic sea-level changes and rapid exhumation, mafic to altramafic sediments were transported in abundance to Central Depression from Kontum Massif, while multiple provenances casted integrated influence on eastern sedimentary sequences. Southern Baiyun Sag was also affected by an increased supplement from the west Shenhu Uplift or even central Vietnam. Overall pattern did not change greatly since early Miocene, but long-distance transport has become dominant in the northern SCS. Under controlled by regional tectonic cycles, Pearl River gradually evolved into the present scale and exerted its influence on basinal provenances by several stages. Zhu1 Depression was partially delivered sediments from its tributaries in early Oligocene while northern Zhu2 Depression has not been provided abundant materials until late Oligocene. Meanwhile, although detailed transportation routine remains uncertain and controversial, an impressive paleo-channel spanning the whole Qiongdongnan Basin was presumed to supply huge amount of mafic to ultramafic sediments from central Vietnam drainage systems to the further eastern regions, which even reaching Baiyun Sag since the late Oligocene or even earlier. This unique channel was later likely to be replaced by the adjacent provenance of Hainan Island after early Miocene.

  12. Evidence of previous but not current transmission of chikungunya virus in southern and central Vietnam: Results from a systematic review and a seroprevalence study in four locations.

    PubMed

    Quan, Tran Minh; Phuong, Huynh Thi; Vy, Nguyen Ha Thao; Thanh, Nguyen Thi Le; Lien, Nguyen Thi Nam; Hong, Tran Thi Kim; Dung, Pham Ngoc; Chau, Nguyen Van Vinh; Boni, Maciej F; Clapham, Hannah E

    2018-02-01

    Arbovirus infections are a serious concern in tropical countries due to their high levels of transmission and morbidity. With the outbreaks of chikungunya (CHIKV) in surrounding regions in recent years and the fact that the environment in Vietnam is suitable for the vectors of CHIKV, the possibility of transmission of CHIKV in Vietnam is of great interest. However, information about CHIKV activity in Vietnam remains limited. In order to address this question, we performed a systematic review of CHIKV in Vietnam and a CHIKV seroprevalence survey. The seroprevalence survey tested for CHIKV IgG in population serum samples from individuals of all ages in 2015 from four locations in Vietnam. The four locations were An Giang province (n = 137), Ho Chi Minh City (n = 136), Dak Lak province (n = 137), and Hue City (n = 136). The findings give us evidence of some CHIKV activity: 73/546 of overall samples were seropositive (13.4%). The age-adjusted seroprevalences were 12.30% (6.58-18.02), 13.42% (7.16-19.68), 7.97% (3.56-12.38), and 3.72% (1.75-5.69) in An Giang province, Ho Chi Minh City, Dak Lak province, and Hue City respectively. However, the age-stratified seroprevalence suggests that the last transmission ended around 30 years ago, consistent with results from the systematic review. We see no evidence for on-going transmission in three of the locations, though with some evidence of recent exposure in Dak Lak, most likely due to transmission in neighbouring countries. Before the 1980s, when transmission was occurring, we estimate on average 2-4% of the population were infected each year in HCMC and An Giang and Hue (though transmision ended earlier in Hue). We estimate lower transmission in Dak Lak, with around 1% of the population infected each year. In conclusion, we find evidence of past CHIKV transmission in central and southern Vietnam, but no evidence of recent sustained transmission. When transmission of CHIKV did occur, it appeared to be widespread and affect a geographically diverse population. The estimated susceptibility of the population to chikungunya is continually increasing, therefore the possibility of future CHIKV transmission in Vietnam remains.

  13. Evidence of previous but not current transmission of chikungunya virus in southern and central Vietnam: Results from a systematic review and a seroprevalence study in four locations

    PubMed Central

    Phuong, Huynh Thi; Vy, Nguyen Ha Thao; Thanh, Nguyen Thi Le; Lien, Nguyen Thi Nam; Hong, Tran Thi Kim; Dung, Pham Ngoc; Chau, Nguyen Van Vinh; Boni, Maciej F.; Clapham, Hannah E.

    2018-01-01

    Background Arbovirus infections are a serious concern in tropical countries due to their high levels of transmission and morbidity. With the outbreaks of chikungunya (CHIKV) in surrounding regions in recent years and the fact that the environment in Vietnam is suitable for the vectors of CHIKV, the possibility of transmission of CHIKV in Vietnam is of great interest. However, information about CHIKV activity in Vietnam remains limited. Methodology In order to address this question, we performed a systematic review of CHIKV in Vietnam and a CHIKV seroprevalence survey. The seroprevalence survey tested for CHIKV IgG in population serum samples from individuals of all ages in 2015 from four locations in Vietnam. Principal findings The four locations were An Giang province (n = 137), Ho Chi Minh City (n = 136), Dak Lak province (n = 137), and Hue City (n = 136). The findings give us evidence of some CHIKV activity: 73/546 of overall samples were seropositive (13.4%). The age-adjusted seroprevalences were 12.30% (6.58–18.02), 13.42% (7.16–19.68), 7.97% (3.56–12.38), and 3.72% (1.75–5.69) in An Giang province, Ho Chi Minh City, Dak Lak province, and Hue City respectively. However, the age-stratified seroprevalence suggests that the last transmission ended around 30 years ago, consistent with results from the systematic review. We see no evidence for on-going transmission in three of the locations, though with some evidence of recent exposure in Dak Lak, most likely due to transmission in neighbouring countries. Before the 1980s, when transmission was occurring, we estimate on average 2–4% of the population were infected each year in HCMC and An Giang and Hue (though transmision ended earlier in Hue). We estimate lower transmission in Dak Lak, with around 1% of the population infected each year. Conclusion In conclusion, we find evidence of past CHIKV transmission in central and southern Vietnam, but no evidence of recent sustained transmission. When transmission of CHIKV did occur, it appeared to be widespread and affect a geographically diverse population. The estimated susceptibility of the population to chikungunya is continually increasing, therefore the possibility of future CHIKV transmission in Vietnam remains. PMID:29425199

  14. Seasonal and geographical distribution of bacillary dysentery (shigellosis) and associated climate risk factors in Kon Tam Province in Vietnam from 1999 to 2013.

    PubMed

    Lee, Hu Suk; Ha Hoang, T T; Pham-Duc, Phuc; Lee, Mihye; Grace, Delia; Phung, Dac Cam; Thuc, Vu Minh; Nguyen-Viet, Hung

    2017-06-21

    Bacillary dysentery (BD) is an acute bacterial infection of the intestine caused by Shigella spp., with clinical symptoms ranging from fever to bloody diarrhoea to abdominal cramps to tenesmus. In Vietnam, enteric bacterial pathogens are an important cause of diarrhoea and most cases in children under 5 years of age are due to Shigella strains. The serogroups S. flexneri and S. sonnei are considered to be the most common. The main objective of this study was to, for the first time, assess the seasonal patterns and geographic distribution of BD in Vietnam, and to determine the climate risk factors associated with the incidence of BD in Kon Tum Province, where the highest rate of bacillary dysentery was observed from 1999 to 2013. The seasonal patterns and geographic distribution of BD was assessed in Vietnam using a seasonal-trend decomposition procedure based on loess. In addition, negative binomial regression models were used to determine the climate risk factors associated with the incidence of BD in Kon Tum Province, from 1999 to 2013. Overall, incidence rates of BD have slightly decreased over time (except for an extremely high incidence in 2012 in the north of Vietnam). The central regions (north/south central coast and central highlands) had relatively high incidence rates, whereas the northwest/east and Red River Delta regions had low incidence rates. Overall, seasonal plots showed a high peak in the mid-rainy reason and a second smaller peak in the early or late rainy season. The incidence rates significantly increased between May and October ("wet season") across the country. In Kon Tum Province, temperature, humidity, and precipitation were found to be positively associated with the incidence of BD. Our findings provide insights into the seasonal patterns and geographic distribution of BD in Vietnam and its associated climate risk factors in Kon Tum Province. This study may help clinicians and the general public to better understand the timings of outbreaks and therefore equip them with the knowledge to plan better interventions (such as improving water, sanitation, and hygiene conditions) during peak seasons. This can, in turn, prevent or reduce outbreaks and onwards transmission during an outbreak.

  15. Why So Conventional? America’s Propensity to Wage Traditional Large-Scale Warfare

    DTIC Science & Technology

    2013-12-01

    74 Mao Zedong, “Strategy in China’s Revolution,” Selected Military Writings of Mao Tse -tung, (Beijing: Foreign Language...After the defeat of the French, the United States took up the mantle of defending Laos , Cambodia, and the southern portion of Vietnam below the...the war299;300 2) the invasion and bombing of Cambodia and Laos to destroy NVA sanctuaries and the Central Office for South Vietnam (COSVN); the

  16. If they get sick, they are in trouble: health care restructuring, user charges, and equity in Vietnam.

    PubMed

    Sepehri, Ardeshir; Chernomas, Robert; Akram-Lodhi, A Haroon

    2003-01-01

    The transition from a centrally planned economy in the 1980s and the implementation of a series of neoliberal health policy reform measures in 1989 affected the delivery and financing of Vietnam's health care services. More specifically, legalization of private medical practice, liberalization of the pharmaceutical industry, and introduction of user charges at public health facilities have effectively transformed Vietnam's near universal, publicly funded and provided health services into a highly unregulated private-public mix system, with serious consequences for Vietnam's health system. Using Vietnam's most recent household survey data and published facility-based data, this article examines some of the problems faced by Vietnam's health sector, with particular reference to efficiency, access, and equity. The data reveal four important findings: self-treatment is the dominant mode of treatment for both the poor and nonpoor; there is little or no regulation to protect patients from financial abuse by private medical providers, pharmacies, and drug vendors; in the face of a dwindling share of the state health budget in public hospital revenues and low salaries, hospitals increasingly rely on user charges and insurance premiums to finance services, including generous staff bonuses; and health care costs, especially hospital costs, are substantial for many low- and middle-income households.

  17. A striking new species of phytotelm-breeding tree frog (Anura: Rhacophoridae) from central Vietnam.

    PubMed

    Rowley, Jodi J L; Le, Duong Thi Thuy; Dau, Vinh Quang; Hoang, Huy Duc; Cao, Trung Tien

    2014-04-02

    We describe a distinctive new species of phytotelm-breeding rhacophorid frog from central Vietnam. Gracixalus lumarius sp. nov. is distinguished from all other rhacophorids in Indochina by a combination of (1) medium body size (adult males 38.9-41.6 mm; adult female 36.3 mm), (2) dorsum brown diurnally and yellow nocturnally, (3) venter pink, (4) tympanum and supratympanic fold indistinct (5) iris dark gold with a dense, relatively uniformly distributed network of black reticulations, (6) dorsum with distinctive white conical tubercles in males, and (7) eggs deposited on wall of a phyptotelm. The new species is known from montane bamboo and montane evergreen forest in Ngoc Linh Nature Reserve in Kon Tum Province, between ~1845-2160 m elevation.

  18. Assessing potential impacts of the EVFTA on Vietnam's pharmaceutical imports from the EU: an application of SMART analysis.

    PubMed

    Vu, Huong Thanh

    2016-01-01

    This paper by adopting the Software on Market Analysis and Restrictions on Trade assessed the ex-ante impact of tariff elimination under the European-Vietnam free trade agreement (EVFTA) on Vietnam's pharmaceutical imports from the EU based on two scenarios. The results showed that although Vietnam's tariff removal for the EU's medicines would not result in a significant increase in Vietnam's imports from the EU, Vietnam's deeper integration with ASEAN + 3 and TPP (the Trans-Pacific Partnership) nations would affect quite slightly on its imports from the EU. Therefore, the EU would be still the most important and biggest source of pharmaceuticals for Vietnam in the near future. In addition, there might be an uneven distribution in Vietnam's import increases by the EU nation, pharmaceutical group and product. The simulation results also pointed out that the EVFTA's trade creation effect would be higher than trade diversion effect and therefore the agreement would improve welfare of Vietnam. When Vietnam extends its coverage of tariff elimination to also TPP and ASEAN + 3, Vietnam's welfare would potentially increase more but Vietnam would face with the relatively high increases of pharmaceutical imports from not only the EU but also the US, Australia, South Korea, Thailand and China. Bases on these results, the paper argued that both the Vietnamese government and pharmaceutical enterprises should not neglect the EVFTA and its impacts on the pharmaceutical sector, and perceive clearly the uneven distribution of Vietnam's import changes from the EU by nation and by product to design appropriate business and investment strategy. In addition, Vietnam should take measures to diversify its European import markets to be less dependent on the traditional ones in the current context of the EU. Finally, Vietnam should promote the integration in the pharmaceutical sector with all three groups of nations, especially ASEAN and ASEAN's key partners, to reduce trade diversion effect and raise the welfare of Vietnam, given that Vietnam should consider carefully the point of time to remove tariff for each group to avoid the sudden increase in its pharmaceutical imports.

  19. Assessment of the geothermal resources of the Socialist Republic of Vietnam

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Flynn, T.; Tien, Phan Cu; Schochert, D.

    1997-12-31

    More than 125 thermal springs, with temperatures greater than 30{degrees}C have been identified and catalogued by the General Department of Geology of Vietnam. Subsurface data are limited and fewer than 10 areas have been identified, on the basis of chemical geothermometers, as capable of supporting electric power production. Six sites in south-central Vietnam have recently been selected for exploration to determine their development potential for electrical power generation. Selected criteria included surface features, chemical geothermometers, proximity to regional faults trends, and regional requirements for electric power. Site visits were conducted to a total of eight areas in south central Vietnammore » where collateral economic developments suggest the need for a local, reliable source of electricity. Physical and visual information on geothermal springs and wells in Vietnam was compared to Nevada`s geothermal resources. Surface geothermal manifestations in Vietnam appear remarkably similar to those in Nevada. Outcrops adjacent to the geothermal areas indicate that Mesozoic-age granites are the most likely basement rocks. Quaternary basalts mapped throughout the study area may be responsible for the thermal anomaly. Initial exploration efforts will focus on three of the six sites, which together may be able to produce 40 to 60 MWe. A cooperative research program with selected Vietnamese governmental agencies includes geologic mapping, surface geophysical and geochemical surveys, and a graduated schedule of drilling programs, ranging in depth from 100 to 1,000 m. Results will be used to define a detailed, deep drilling and testing program at the three prime sites. Development of geothermal power in this region will boost local economic recovery and add stability to the national electric grid.« less

  20. Native Sons

    ERIC Educational Resources Information Center

    Anderson, Michelle D.

    2009-01-01

    In the 1960s, in the midst of Vietnam War protests and the emergence of the Black power movement, students John Garland and James Renick worked as campus advocates to change the environment and curricula at Central State University. Today, Garland, president of Central State, and his college friend Renick, who began serving as senior adviser to…

  1. Drought characteristics and related risks in large and mesoscale tropical catchments in Latin-America and South East Asia

    NASA Astrophysics Data System (ADS)

    Nauditt, Alexandra; Ribbe, Lars; Birkel, Christian; Célleri, Rolando

    2016-04-01

    Seasonal meteorological and hydrological droughts are a recurrent phenomenon in water abundant tropical countries and are expected to become more frequent in the future. Unusual water shortage in the past months and years has severely affected societies living in the Paraiba do Sul river basin (Brazil), the Mekong, as well as in a number of basins in Central America and Vietnam among many others. Preparedness, however, is absent and site appropriate water management measures and strategies are not available. While drought related research and water management in recent years has been widely addressed in water scarce subtropical regions, the US and Europe, not much attention has been paid to drought risk in tropical catchments. Available daily or monthly precipitation and runoff time series for catchments in Brazil, Costa Rica, Ecuador, the Mekong region and Vietnam were analysed to compare historical meteorological and hydrological drought frequency (SPI/SRI). The role of tropical catchment characteristics, storage and climate variability in seasonal drought evolvement was investigated by applying the conceptual semi-distributed HBV light model to two undisturbed catchments in Central Vietnam and 18 catchments of a size of 70-5000 km² in Costa Rica. For the Mekong and the Paraíba de Sul, the hydrological module of the WEAP model was applied to undisturbed subcatchments with the same objective. To understand and separate the anthropogenic impact on drought evolvement, the abstractions (irrigation, reservoirs, water supply) and hydrological alterations were observed and quantified by applying water allocation and balance model WEAP. We conclude that such a combined model-data analysis that equally accounts for landscape related and anthropogenic impacts on the local hydrological cycle is a useful approach for drought management in tropical countries.

  2. JPRS Report, East Asia, Southeast Asia, Vietnam: Tap Chi Cong San, No. 2, February 1990

    DTIC Science & Technology

    1990-10-01

    Primary Level [ Tran Van Dam] 14 Letters to the Editorial Staff Renovation of the Cadres Engaged in Organizational Work [Trung Dung] 17 The...from the Marxist-Leninist Institute; Pham Quang Can, the editor in chief of QUOC PHONG TOAN DAN; Nguyen Dang Quang, the editor in chief of GIAO DUC ...ideas. Nguyen Chinh (head of the Department of Propaganda and Training of the Central Committee of the Vietnam Fatherland Front): In a society

  3. Interpersonal Styles of Vietnam Era Veterans

    ERIC Educational Resources Information Center

    Lorr, Maurice; And Others

    1975-01-01

    A comparative analysis is made of the social characteristics of Vietnam veterans and World War II veterans. By use of the Interpersonal Style Inventory, the results showed that the Vietnam veterans were more rebellious, radical, and expedient than older veterans. (DEP)

  4. A method to manage and share anti-retroviral (ARV) therapy information of human immunodeficiency virus (HIV) patients in Vietnam.

    PubMed

    Nguyen, Phung Anh; Syed-Abdul, Shabbir; Minamareddy, Priti; Lee, Peisan; Ngo, Thuy Dieu; Iqbal, Usman; Nguyen, Phuong Hoang; Jian, Wen-Shan; Li, Yu-Chuan Jack

    2013-08-01

    Management of antiretroviral (ARV) drug and HIV patients data is an important component of Vietnam Administration of HIV/AIDS Control (VAAC) Department and hospitals/health care units when people often travel in other places of Vietnam; therefore, it would lead to a number of medical errors in treatment as well as patients do not adhere to ARV therapy. In this paper, we describe a system that manages and shares antiretroviral therapy information of 4438 HIV patients in three healthcare centers in Hanoi capital of Vietnam. The overall design considerations, architecture and the integration of centralized database and decentralized management for the system are also presented. The findings from this study can serve as a guide to consider in the implementation model of health care to manage and share information of patients not only in HIV infection, but also in the other chronic and non-communicable diseases. Copyright © 2013. Published by Elsevier Ireland Ltd.

  5. Development and validation of the Vietnamese primary care assessment tool.

    PubMed

    Hoa, Nguyen Thi; Tam, Nguyen Minh; Peersman, Wim; Derese, Anselme; Markuns, Jeffrey F

    2018-01-01

    To adapt the consumer version of the Primary Care Assessment Tool (PCAT) for Vietnam and determine its internal consistency and validity. A quantitative cross sectional study. 56 communes in 3 representative provinces of central Vietnam. Total of 3289 people who used health care services at health facility at least once over the past two years. The Vietnamese adult expanded consumer version of the PCAT (VN PCAT-AE) is an instrument for evaluation of primary care in Vietnam with 70 items comprising six scales representing four core primary care domains, and three additional scales representing three derivative domains. Sixteen other items from the original tool were not included in the final instrument, due to problems with missing values, floor or ceiling effects, and item-total correlations. All the retained scales have a Cronbach's alpha above 0.70 except for the subscale of Family Centeredness. The VN PCAT-AE demonstrates adequate internal consistency and validity to be used as an effective tool for measuring the quality of primary care in Vietnam from the consumer perspective. Additional work in the future to optimize valid measurement in all domains consistent with the original version of the tool may be helpful as the primary care system in Vietnam further develops.

  6. The effect of participatory community communication on HIV preventive behaviors among ethnic minority youth in central Vietnam

    PubMed Central

    2012-01-01

    Background In Vietnam, socially marginalized groups such as ethnic minorities in mountainous areas are often difficult to engage in HIV research and prevention programs. This intervention study aimed to estimate the effect of participatory community communication (PCC) on changing HIV preventive ideation and behavior among ethnic minority youth in a rural district from central Vietnam. Methods In a cross-sectional survey after the PCC intervention, using a structured questionnaire, 800 ethnic minority youth were approached for face-to-face interviews. Propensity score matching (PSM) technique was then utilized to match these participants into two groups-intervention and control-for estimating the effect of the PCC. Results HIV preventive knowledge and ideation tended to increase as the level of recall changed accordingly. The campaign had a significant indirect effect on condom use through its effect on ideation or perceptions. When intervention and control group statistically equivalently reached in terms of individual and social characteristics by PSM, proportions of displaying HIV preventive knowledge, ideation and condom use were significantly higher in intervention group than in matched control counterparts, accounting for net differences of 7.4%, 12.7% and 5%, respectively, and can be translated into the number of 210; 361 and 142 ethnic minority youth in the population. Conclusions The study informs public health implications both theoretically and practically to guide effective HIV control programs for marginalized communities in resources-constrained settings like rural Vietnam and similar contexts of developing countries. PMID:22401660

  7. Emergence of multiple clade 2.3.2.1 influenza A (H5N1) virus subgroups in Vietnam and detection of novel reassortants.

    PubMed

    Creanga, Adrian; Thi Nguyen, Diep; Gerloff, Nancy; Thi Do, Hoa; Balish, Amanda; Dang Nguyen, Hoang; Jang, Yunho; Thi Dam, Vui; Thor, Sharmi; Jones, Joyce; Simpson, Natosha; Shu, Bo; Emery, Shannon; Berman, LaShondra; Nguyen, Ha T; Bryant, Juliet E; Lindstrom, Steve; Klimov, Alexander; Donis, Ruben O; Davis, C Todd; Nguyen, Tung

    2013-09-01

    Phylogenetic analyses of 169 influenza A(H5N1) virus genomes were conducted for samples collected through active surveillance and outbreak responses in Vietnam between September 2010 and September 2012. While clade 1.1 viruses persisted in southern regions, three genetically distinct subgroups of clade 2.3.2.1 were found in northern and central Vietnam. The identification of each subgroup corresponded with detection of novel reassortants, likely due to their overlapping circulation throughout the country. While the previously identified clade 1.1 and A/Hubei/1/2010-like 2.3.2.1 genotypes remained the predominant viruses detected, four viruses were found to be reassortants between A/Hubei/1/2010-like (HA, NA, PB2, PB1, PA, NP) and A/duck/Vietnam/NCVD-885/2010-like (M, NS) viruses and one virus was identified as having A/duck/Vietnam/NCVD-885/2010-like HA, NA, PB1, and NP with A/Hubei/1/2010-like PB2 and PA genes. Additionally, clade 2.3.2.1 A/Hong Kong/6841/2010-like viruses, first detected in mid-2012, were identified as reassortants comprised of A/Hubei/1/2010-like PB2 and PA and A/duck/Vietnam/NCVD-885/2010-like PB1, NP, NA, M, NS genes. Published by Elsevier Inc.

  8. Latent Classes of PTSD Symptoms in Vietnam Veterans

    ERIC Educational Resources Information Center

    Steenkamp, Maria M.; Nickerson, Angela; Maguen, Shira; Dickstein, Benjamin D.; Nash, William P.; Litz, Brett T.

    2012-01-01

    The authors examined heterogeneity in posttraumatic stress disorder (PTSD) symptom presentation among veterans (n = 335) participating in the clinical interview subsample of the National Vietnam Veterans Readjustment Study. Latent class analysis was used to identify clinically homogeneous subgroups of Vietnam War combat veterans. Consistent with…

  9. Distribution of Salmonella Serovars and Antimicrobial Susceptibility from Poultry and Swine Farms in Central Vietnam.

    PubMed

    Lettini, A A; Vo Than, T; Marafin, E; Longo, A; Antonello, K; Zavagnin, P; Barco, L; Mancin, M; Cibin, V; Morini, M; Dang Thi Sao, M; Nguyen Thi, T; Pham Trung, H; Le, L; Nguyen Duc, T; Ricci, A

    2016-11-01

    This study was conducted to estimate the prevalence of Salmonella spp. and their antimicrobial susceptibilities on poultry and swine farms, sampled in 2 regions in Central Vietnam. A total of 67 poultry farms and 46 swine farms were sampled in a period of 5 months (from September 2012 to January 2013). Salmonella spp. was prevalent in 46.3% and 71.7% of poultry and swine farms, respectively. Altogether, 99 non-typhoidal Salmonella were isolated and the most common serovars were Salmonella Weltevreden (19%), followed by Salmonella Typhimurium (12%) and Salmonella 4,[5],12:i:- (11%). Overall, 71 of 99 (72%) Salmonella isolates were resistant to at least one of the 14 antimicrobial agents tested. Both in poultry and swine farms, high levels of resistance were observed for ampicillin, chloramphenicol, ciprofloxacin, sulphamethoxazole and tetracycline. The presence of Salmonella isolates from poultry and swine farms which were resistant to different classes of antimicrobials suggests that alternative control measures to antimicrobials should be implemented. Moreover, an effective policy should be promoted to encourage a prudent use of these agents in animal farming in Vietnam. © 2016 Blackwell Verlag GmbH.

  10. Determinants of marginalization and inequitable maternal health care in North-Central Vietnam: a framework analysis.

    PubMed

    Binder-Finnema, Pauline; Lien, Pham T L; Hoa, Dinh T P; Målqvist, Mats

    2015-01-01

    Vietnam has achieved great improvements in maternal healthcare outcomes, but there is evidence of increasing inequity. Disadvantaged groups, predominantly ethnic minorities and people living in remote mountainous areas, do not gain access to maternal health improvements despite targeted efforts from policymakers. This study identifies underlying structural barriers to equitable maternal health care in Nghe An province, Vietnam. Experiences of social inequity and limited access among child-bearing ethnic and minority women are explored in relation to barriers of care provision experienced by maternal health professionals to gain deeper understanding on health outcomes. In 2012, 11 focus group discussions with women and medical care professionals at local community health centers and district hospitals were conducted using a hermeneutic-dialectic method and analyzed for interpretation using framework analysis. The social determinants 'limited negotiation power' and 'limited autonomy' orchestrate cyclical effects of shared marginalization for both women and care professionals within the provincial health system's infrastructure. Under-staffed and poorly equipped community health facilities refer women and create overload at receiving health centers. Limited resources appear diverted away from local community centers as compensation to the district for overloaded facilities. Poor reputation for low care quality exists, and professionals are held in low repute for causing overload and resulting adverse outcomes. Country-wide reforms force women to bear responsibility for limited treatment adherence and health insight, but overlook providers' limited professional development. Ethnic minority women are hindered by relatives from accessing care choices and costs, despite having advanced insight about government reforms to alleviate poverty. Communication challenges are worsened by non-existent interpretation systems. For maternal health policy outcomes to become effective, it is important to understand that limited negotiation power and limited autonomy simultaneously confront childbearing women and health professionals. These two determinants underlie the inequitable economic, social, and political forces in Vietnam's disadvantaged communities, and result in marginalized status shared by both in the poorest sectors.

  11. Probabilistic seismic hazard assessment for northern Southeast Asia

    NASA Astrophysics Data System (ADS)

    Chan, C. H.; Wang, Y.; Kosuwan, S.; Nguyen, M. L.; Shi, X.; Sieh, K.

    2016-12-01

    We assess seismic hazard for northern Southeast Asia through constructing an earthquake and fault database, conducting a series of ground-shaking scenarios and proposing regional seismic hazard maps. Our earthquake database contains earthquake parameters from global and local seismic catalogues, including the ISC, ISC-GEM, the global ANSS Comprehensive Catalogues, Seismological Bureau, Thai Meteorological Department, Thailand, and Institute of Geophysics Vietnam Academy of Science and Technology, Vietnam. To harmonize the earthquake parameters from various catalogue sources, we remove duplicate events and unify magnitudes into the same scale. Our active fault database include active fault data from previous studies, e.g. the active fault parameters determined by Wang et al. (2014), Department of Mineral Resources, Thailand, and Institute of Geophysics, Vietnam Academy of Science and Technology, Vietnam. Based on the parameters from analysis of the databases (i.e., the Gutenberg-Richter relationship, slip rate, maximum magnitude and time elapsed of last events), we determined the earthquake recurrence models of seismogenic sources. To evaluate the ground shaking behaviours in different tectonic regimes, we conducted a series of tests by matching the felt intensities of historical earthquakes to the modelled ground motions using ground motion prediction equations (GMPEs). By incorporating the best-fitting GMPEs and site conditions, we utilized site effect and assessed probabilistic seismic hazard. The highest seismic hazard is in the region close to the Sagaing Fault, which cuts through some major cities in central Myanmar. The northern segment of Sunda megathrust, which could potentially cause M8-class earthquake, brings significant hazard along the Western Coast of Myanmar and eastern Bangladesh. Besides, we conclude a notable hazard level in northern Vietnam and the boundary between Myanmar, Thailand and Laos, due to a series of strike-slip faults, which could potentially cause moderate-large earthquakes. Note that although much of the region has a low probability of damaging shaking, low-probability events have resulted in much destruction recently in SE Asia (e.g. 2008 Wenchuan, 2015 Sabah earthquakes).

  12. A distinction between summer rainy season and summer monsoon season over the Central Highlands of Vietnam

    NASA Astrophysics Data System (ADS)

    Ngo-Thanh, Huong; Ngo-Duc, Thanh; Nguyen-Hong, Hanh; Baker, Peter; Phan-Van, Tan

    2018-05-01

    The daily rainfall data at 13 stations over the Central Highlands (CH) Vietnam were collected for the period 1981-2014. Two different sets of criteria using daily observed rainfall and 850 hPa daily reanalysis wind data were applied to determine the onset (retreat) dates of the summer rainy season (RS) and summer monsoon (SM) season, respectively. Over the study period, the mean RS and SM onset dates were April 20 and May 13 with standard deviations of 17.4 and 17.8 days, respectively. The mean RS and SM retreat dates were November 1 and September 30 with standard deviations of 17.9 and 10.2 days, respectively . The year-to-year variations of the onset dates and the rainfall amount within the RS and SM season were closely linked with the preceding winter and spring sea surface temperature in the central-eastern and western Pacific. It was also found that the onset dates were significantly correlated with the RS and SM rainfall amount.

  13. Why the Weak Win Wars: A Study of the Factors That Drive Strategy in Asymmetric Conflict

    DTIC Science & Technology

    2009-12-01

    Armour Press, 1998), 49. 171 Tilford, Setup: What the Air Force did in Vietnam and Why, 234. 172 Ibid., 238. 67...North Vietnam, 1972. London: Arms & Armour Press, 1998. Summers, Harry G. On Strategy: A Critical Analysis of the Vietnam War. Novato, CA

  14. Pathogenicity and Molecular Characterization of Emerging Porcine Reproductive and Respiratory Syndrome Virus in Vietnam in 2007

    USDA-ARS?s Scientific Manuscript database

    In 2007, Vietnam experienced swine disease outbreaks causing clinical signs similar to the "porcine high fever disease" that occurred in China during 2006. Analysis of diagnostic samples from the disease outbreaks in Vietnam identified porcine reproductive and respiratory syndrome virus (PRRSV) and ...

  15. Postnatal depressive symptoms amongst women in Central Vietnam: a cross-sectional study investigating prevalence and associations with social, cultural and infant factors.

    PubMed

    Murray, Linda; Dunne, Michael P; Van Vo, Thang; Anh, Phuong Nguyen Thi; Khawaja, Nigar G; Cao, Thanh Ngoc

    2015-09-30

    This study investigated the prevalence and socio-cultural correlates of postnatal mood disturbance amongst women 18-45 years old in Central Vietnam. Son preference and traditional confinement practices were explored as well as factors such as poverty, parity, family and intimate partner relationships and infant health. A cross-sectional study was conducted in twelve randomly selected Commune Health Centres from urban and rural districts of Thua Thien Hue Province, Vietnam. Mother-infant dyads one to six months postpartum were invited to participate. Questionnaires from 431 mothers (urban n = 216; rural n = 215) assessed demographic and family characteristics, traditional confinement practices, son preference, infant health and social capital. The Edinburgh Postnatal Depression Scale (EPDS) and WHO5 Wellbeing Index indicated depressive symptoms and emotional wellbeing. Data were analysed using general linear models. Using an EPDS cut-off of 12/13, 18.1% (n = 78, 95% CI 14.6-22.1) of women had depressive symptoms (20.4% urban; 15.8% rural). Contrary to predictions, infant gender and traditional confinement were unrelated to depressive symptoms. Poverty, food insecurity, being frightened of family members, and intimate partner violence increased both depressive symptoms and lowered wellbeing. The first model accounted for 30.2% of the variance in EPDS score and found being frightened of one's husband, husband's unemployment, breastfeeding difficulties, infant diarrhoea, and cognitive social capital were associated with higher EPDS scores. The second model had accounted for 22% of the variance in WHO5 score. Living in Hue city, low education, poor maternal competence and a negative family response to the baby lowered maternal wellbeing. Traditional confinement practices and son preference were not linked to depressive symptoms among mothers, but were correlates of family relationships and wellbeing. Poverty, food insecurity, violence, infant ill health, and discordant intimate and family relationships were linked with depressive symptoms in Central Vietnam.

  16. Prevalence of hepatitis B virus subgenotypes and basal core promoter, precore variants in patients with acute hepatitis B in central Vietnam.

    PubMed

    Hayashi, Kazuhiko; Katano, Yoshiaki; Chuong, Tran Xuan; Takeda, Yasushi; Ishigami, Masatoshi; Itoh, Akihiro; Hirooka, Yoshiki; Nakano, Isao; Huy, Tran Van; Minh, Nguyen Ngoc; Diem, Tran thi Minh; An, Dong thi Hoai; Phiet, Pham Hoang; Goto, Hidemi

    2009-01-01

    Hepatitis B virus (HBV) has been classified into 8 genotypes that have different geographic distributions. The clinical outcomes of acute hepatitis are dependent on genotype. The aim of this study was to investigate the distribution of HBV subgenotypes and basal core promoter (BCP)/precore (PC) regions in acute hepatitis patients in Central Vietnam to clarify the distributions and the clinical and virological differences. 27 patients with acute hepatitis B were studied. HBV subgenotypes and BCP/PC variants were determined by direct sequencing of the preS, BCP/PC regions, respectively. HBV subgenotypes B4/Ba (n = 22) and C1/Cs (n = 5) were detected. Of the 27 patients, 3 developed fulminant hepatic failure, and all were infected with B4/Ba. Three patients had a BCP mutation, and 10 patients had a PC mutation in subgenotype B4/Ba. Three patients with C1/Cs had a BCP mutation. Two of 3 patients who progressed to fulminant hepatic failure had T1762, A1764, and A1896 simultaneously. None of the patients with acute, self-limited hepatitis carried these triple mutations. The prevalent HBV subgenotypes in patients with acute hepatitis B in Central Vietnam were B4/Ba and C1/Cs. BCP/PC variants have an association with the development of fulminant hepatic failure in subgenotype B4/Ba. Copyright 2009 S. Karger AG, Basel.

  17. Vegetation fires and air pollution in Vietnam.

    PubMed

    Le, Thanh Ha; Thanh Nguyen, Thi Nhat; Lasko, Kristofer; Ilavajhala, Shriram; Vadrevu, Krishna Prasad; Justice, Chris

    2014-12-01

    Forest fires are a significant source of air pollution in Asia. In this study, we integrate satellite remote sensing data and ground-based measurements to infer fire-air pollution relationships in selected regions of Vietnam. We first characterized the active fires and burnt areas at a regional scale from MODIS satellite data. We then used satellite-derived active fire data to correlate the resulting atmospheric pollution. Further, we analyzed the relationship between satellite atmospheric variables and ground-based air pollutant parameters. Our results show peak fire activity during March in Vietnam, with hotspots in the Northwest and Central Highlands. Active fires were significantly correlated with UV Aerosol Index (UVAI), aerosol extinction absorption optical depth (AAOD), and Carbon Monoxide. The use of satellite aerosol optical thickness improved the prediction of Particulate Matter (PM) concentration significantly. Copyright © 2014 Elsevier Ltd. All rights reserved.

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

    PubMed Central

    Ha, Bui Thi Thu; Mirzoev, Tolib; Mukhopadhyay, Maitrayee

    2015-01-01

    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. PMID:26673334

  19. Development and validation of the Vietnamese primary care assessment tool

    PubMed Central

    2018-01-01

    Objective To adapt the consumer version of the Primary Care Assessment Tool (PCAT) for Vietnam and determine its internal consistency and validity. Design A quantitative cross sectional study. Setting 56 communes in 3 representative provinces of central Vietnam. Participants Total of 3289 people who used health care services at health facility at least once over the past two years. Results The Vietnamese adult expanded consumer version of the PCAT (VN PCAT-AE) is an instrument for evaluation of primary care in Vietnam with 70 items comprising six scales representing four core primary care domains, and three additional scales representing three derivative domains. Sixteen other items from the original tool were not included in the final instrument, due to problems with missing values, floor or ceiling effects, and item-total correlations. All the retained scales have a Cronbach’s alpha above 0.70 except for the subscale of Family Centeredness. Conclusions The VN PCAT-AE demonstrates adequate internal consistency and validity to be used as an effective tool for measuring the quality of primary care in Vietnam from the consumer perspective. Additional work in the future to optimize valid measurement in all domains consistent with the original version of the tool may be helpful as the primary care system in Vietnam further develops. PMID:29324851

  20. Land surface and climate parameters and malaria features in Vietnam

    NASA Astrophysics Data System (ADS)

    Liou, Y. A.; Anh, N. K.

    2017-12-01

    Land surface parameters may affect local microclimate, which in turn alters the development of mosquito habitats and transmission risks (soil-vegetation-atmosphere-vector borne diseases). Forest malaria is a chromic issue in Southeast Asian countries, in particular, such as Vietnam (in 1991, approximate 2 million cases and 4,646 deaths were reported (https://sites.path.org)). Vietnam has lowlands, sub-tropical high humidity, and dense forests, resulting in wide-scale distribution and high biting rate of mosquitos in Vietnam, becoming a challenging and out of control scenario, especially in Vietnamese Central Highland region. It is known that Vietnam's economy mainly relies on agriculture and malaria is commonly associated with poverty. There is a strong demand to investigate the relationship between land surface parameters (land cover, soil moisture, land surface temperature, etc.) and climatic variables (precipitation, humidity, evapotranspiration, etc.) in association with malaria distribution. GIS and remote sensing have been proven their powerful potentials in supporting environmental and health studies. The objective of this study aims to analyze physical attributes of land surface and climate parameters and their links with malaria features. The outcomes are expected to illustrate how remotely sensed data has been utilized in geohealth applications, surveillance, and health risk mapping. In addition, a platform with promising possibilities of allowing disease early-warning systems with citizen participation will be proposed.

  1. Strongyloides stercoralis seroprevalence in Vietnam.

    PubMed

    Diep, Nguyen Thi Ngoc; Thai, Pham Quang; Trang, Nghiem Nguyen Minh; Jäger, Julia; Fox, Annette; Horby, Peter; Phuong, Hoang Vu Mai; Anh, Dang Duc; Mai, LE Thi Quynh; VAN Doorn, H Rogier; Nadjm, Behzad

    2017-11-01

    Strongyloidiasis is a neglected tropical disease caused by the roundworm Strongyloides stercoralis affecting 30-100 million people worldwide. Many Southeast-Asian countries report a high prevalence of S. stercoralis infection, but there are little data from Vietnam. Here, we evaluated the seroprevalence of S. stercoralis related to geography, sex and age in Vietnam through serological testing of anonymized sera. Sera (n = 1710, 1340 adults and 270 children) from an anonymized age-stratified serum bank from four regions in Vietnam between 2012 and 2013 were tested using a commercial Strongyloides ratti immunoglobulin G ELISA. Seroreactivity was found in 29·1% (390/1340) of adults and 5·5% (15/270) of children. Male adults were more frequently seroreactive than females (33·3% vs. 24·9%, P = 0·001). The rural central highlands had the highest seroprevalence (42·4% of adults). Seroreactivity in the other regions was 29·9% (Hue) and 26·0% and 18·2% in the large urban centres of Hanoi and Ho Chi Minh City, respectively. We conclude that seroprevalence of S. stercoralis was high in the Vietnamese adult population, especially in rural areas.

  2. The Association Between Gender Inequalities and Women's Utilization of Maternal Health Services: A Cross-Sectional Survey in Eight South Central Coast Provinces, Vietnam.

    PubMed

    Bui, Ha Thi Thu; Le, Thi Minh; Van Pham, Tac; Doan, Duong Thi Thuy; Nguyen, Duy Anh; Nguyen, Canh Chuong; Duong, Duc Minh

    Gender inequalities influence the utilization of maternal health services in Vietnam, but little research has been published. This study, therefore, aimed to explore the association between gender inequalities and women's utilization of maternal health services in Vietnam. The study was conducted in 8 provinces in the South Central Coast region of Vietnam during August 2013 to May 2014. A total of 907 women who delivered a year prior to the date of interview participated in the study. A multiple logistic regression model was used to examine the association between gender inequalities (including sociodemographic determinants of health) and utilization of 4 or more antenatal care (ANC4+) services, institutional delivery, and ever used contraceptive methods. The utilization rate of maternal health services was varied, from 53.9% for ANC4+ to 87.7% for ever used a contraceptive method and 97% for institutional delivery. Ethnicity was identified as the most influential variable out of all sociodemographic determinants of health. Regarding gender inequalities, couple communication was the only variable having significant association with women's utilization of maternal health services. Women's equal role within context of their daily life and relations with their husbands (discussing maternal care with husband and having equal income to husband) supported their use of maternal health services. Therefore, there should be concerted efforts from all relevant stakeholders including the health system to focus on disadvantaged women in planning and delivery of maternal health services, especially to ethnic minority women. Male involvement strategy should be implemented to promote maternal health care, especially during the prenatal and postpartum period. To provide more culturally sensitive and right-based approaches in delivery of maternal health services to disadvantaged women in Vietnam, interventions are recommended that promote male involvement, that is, to engage men in service delivery to adapt and ensure the most appropriate and effective maternal health care.

  3. Teaching Vietnam: A Critical Military Analysis.

    ERIC Educational Resources Information Center

    Summers, Harry G., Jr.

    1985-01-01

    So that the same mistakes would never again be repeated, the Army War College prepared a clear and understandable analysis of America's strategic failure in Vietnam. One of the most positive aspects of the analysis was the rediscovery of the importance of traditional military history and classical military theory. (RM)

  4. Patterns of Drug Usage Among Vietnam Veterans.

    ERIC Educational Resources Information Center

    Fisher, Allan H., Jr.; And Others

    A factor analysis was performed on an intercorrelation matrix of reported drug usage frequencies for seven drug categories at two consecutive periods of time. Subjects were 1,010 Army Vietnam veterans in pay grade E6 or below, aged 26 years or less. Retrospective reporting identified drug usage prior to a tour of Vietnam and during the tour. Four…

  5. The Policy Cycle and Vernacular Globalization: A Case Study of the Creation of Vietnam National University--Hochiminh City

    ERIC Educational Resources Information Center

    Minh Ngo, Thanh; Lingard, Bob; Mitchell, Jane

    2006-01-01

    This article examines the policy cycle and vernacular globalization in the context of higher education reform in Vietnam. Through an analysis of the development of the Vietnam National University--Hochiminh City as part of the post-1986 reconstruction of Vietnamese higher education, the article considers the complex interrelationship between…

  6. Application of Jason-2/3 Altimetry for Virtual Gauging and Flood Forecasting in Mekong Basin

    NASA Astrophysics Data System (ADS)

    Lee, H.; Hossain, F.; Okeowo, M. A.; Nguyen, L. D.; Bui, D. D.; Chang, C. H.

    2016-12-01

    Vietnam suffers from both flood and drought during the rainy and dry seasons, respectively, due to its highly varying surface water resources. However, the National Center for Water Resources Planning and Investigation (NAWAPI) states that only 7 surface water monitoring stations have been constructed in Central and Highland Central regions with 100 station planned to be constructed by 2030 throughout Vietnam. For the Mekong Delta (MD), the Mekong River Commission (MRC) provides 7-day river level forecasting, but only at the two gauge stations located near the border between Cambodia and Vietnam (http://ffw.mrcmekong.org/south.htm). In order to help stakeholder agencies monitor upstream processes in the rivers and manage their impacts on the agricultural sector and densely populated delta cities, we, first of all, construct the so-called virtual stations throughout the entire Mekong River using the fully automated river level extraction tool with Jason-2/3 Geophysical Research Record (GDR) data. Then, we discuss the potentials and challenges of river level forecasting using Jason-2/3 Interim GDR (IGDR) data, which has 1 - 2 days of latency, over the Mekong River. Finally, based on our analyses, we propose a forecasting system for the Mekong River by drawing from our experience in operationalizing Jason-2 altimetry for Bangladesh flood forecasting.

  7. Characterization of smallholder pig breeding practices within a rural commune of North Central Vietnam.

    PubMed

    Ieda, Nahoko; Van Bui, Quang; Nguyen, Nga Thi Duong; Lapar, Lucy; Marshall, Karen

    2015-08-01

    This case study focused on a pig production system in a rural area of North Central Vietnam, with a focus on describing household pig breeding practices and estimating herd demographic parameters, particularly on reproduction. One hundred five households undertaking small-scale piglet production were surveyed, with information gathered on 3268 individual pigs. Pig keeping contributed variably to the overall household livelihood portfolio, with female household members as the main decision makers, contributors to labor, and beneficiaries of income from the pig enterprise. All households kept between one and four young or adult sows, with 69% of these sows of a local breed type (predominantly Mong Cai), 28% a cross between a local sow and an exotic sow (predominantly Large White), and the remainder (3%) as exotic sows. Eighty-eight percent of the piglets produced were cross-bred, while 12% were local breed. No adult males were kept by the surveyed households, reflecting the common use of artificial insemination for mating purposes. The most common breeding system practiced-the keeping of Mong Cai females and production of cross-bred piglets-capitalizes on the small body size and high fecundity of the sows and the fast growth rate and leanness of the cross-bred piglets. The survey tool used, which was based on farmer recall of events over the preceding 12-month period, appeared to give reasonable results although some recall bias could be detected. This case study will serve as an entry point to planned broader scale characterization and development of pig breeding systems in North Central Vietnam.

  8. Cost Function and Its Use for Intergovernmental Educational Transfers in Vietnam

    ERIC Educational Resources Information Center

    Nguyen-Hoang, Phuong

    2012-01-01

    The purpose of this paper is twofold. First, although many cost function studies have been done in developed countries, there has been no such study for the developing countries such as Vietnam. This paper will make the first attempt at conducting a cost function analysis for Vietnam. Second, it also demonstrates how the results of the cost…

  9. The cost of antiretroviral treatment service for patients with HIV/AIDS in a central outpatient clinic in Vietnam.

    PubMed

    Nguyen, Long Thanh; Tran, Bach Xuan; Tran, Cuong Tuan; Le, Huong Thi; Tran, Son Van

    2014-01-01

    Antiretroviral treatment (ART) services are estimated to account for 30% of the total resources needed for human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) control and prevention in Vietnam during the 2011-2020 timeframe. With international funding decreasing, determining the total cost of HIV/AIDS treatment is necessary in order to develop a master plan for the transition of ART services delivery and management. We analyzed the costs of HIV/AIDS treatment paid by both HIV programs and patients in a central outpatient clinic, and we explored factors associated with the capacity of patients to pay for this service. Patients (n=315) receiving ART in the Department of Infectious Diseases at Bach Mai Hospital, Hanoi, Vietnam, were interviewed. Patient records and expenses were reviewed. The total cost of ART per patient was US$611 (75% from health care providers, 25% from patients or their families). The cost of a second-line regimen was found to be 2.7 times higher than the first-line regimen cost. Most outpatients (73.3%) were able to completely pay for all of their ART expenses. Capacity to pay for ART was influenced by five factors, including marital status, distance from house to clinic, patient's monthly income, household economic condition, and health insurance status. Most of the patients (84.8%) would have been willing to pay for health insurance if a copayment scheme for ART were to be introduced. This study provides evidence on payment capacity of HIV/AIDS patients in Vietnam and supplies information on ART costs from both provider and patient perspectives. In particular, results from this study suggest that earlier access to ART after HIV infection could dramatically reduce the overall cost of treatment.

  10. The black flies (Diptera: Simuliidae) of Vietnam.

    PubMed

    Takaoka, Hiroyuki; Sofian-Azirun, Mohd; Ya'cob, Zubaidah; Chen, Chee Dhang; Lau, Koon Weng; Low, VAN Lun; Pham, Xuan DA; Adler, Peter H

    2017-05-05

    The biodiversity of black flies (Diptera: Simuliidae), which are biting insects of medical and veterinary importance, is strikingly high in Southeast Asian countries, such as Indonesia, Malaysia, Philippines and Thailand. In 2013, we began to explore the fauna of black flies in Vietnam, which has so far been poorly studied. In this monograph, the wealth of the biodiversity of black flies in Vietnam is also confirmed on the basis of the results of our recent investigations, though limited to five provinces in the country.      Morphotaxonomic studies of black flies obtained from Sapa, Lao Cai Province, northern Vietnam, in 2014 and Nghe An Province, northern Vietnam, in 2015, and reexaminations of black flies collected from Tam Dao, Vinh Phuc Province, northern Vietnam, in 2013, Thua Thien Hue Province, central Vietnam, in 2014, and Lam Dong Province, southern Vietnam, in 2014, were conducted. A total of 22 species are described as new, including one in the newly recorded subgenus Montisimulium Rubtsov, and three species are recognized as new records from Vietnam. This investigation brings the number of species of black flies known in Vietnam to 70, all of which are assigned to the genus Simulium Latreille, and are placed in four subgenera (25 in Gomphostilbia Enderlein, one in Montisimulium, seven in Nevermannia Enderlein, and 37 in Simulium Latreille s. str.). The numbers of species-groups recognized include seven in Gomphostilbia, three in Nevermannia and nine in Simulium, indicating a high diversity of putative phylogenetic lineages. New species include S. (G.) sanchayense sp. nov. (= the species formerly regarded as S. (G.) brinchangense Takaoka, Sofian-Azirun & Hashim), S. (S.) lowi sp. nov. (= the species formerly regarded as S. (S.) brevipar Takaoka & Davies), S. (S.) fuscicoxae sp. nov. [= the species formerly regarded as S. (S.) rufibasis Brunetti (in part)], S. (S.) suoivangense sp. nov. [= morphoform 'b' of the S. (S.) tani Takaoka & Davies (complex)]. Newly recorded species are S. (G.) parahiyangum Takaoka & Sigit, S. (N.) maeaiense Takaoka & Srisuka, and S. (S.) doipuiense Takaoka & Choochote (complex) [= the species formerly regarded as S. (S.) rufibasis Brunetti (in part)]. The substitute name, S. (S.) huense, is given for the species that was described under the name of S. (S.) cavum from southern Vietnam. A redescription of the female, male, pupa and larva of S. (G.) asakoae Takaoka & Davies is presented, and the female and larva of S. (G.) hongthaii Takaoka, Sofian-Azirun & Ya'cob are described for the first time. Keys to 10 subgenera in the Oriental Region and all 70 species recorded from Vietnam are provided for females, males, pupae and mature larvae.      As investigations extend nationwide in all the provinces in Vietnam, more new species and records are expected to be discovered. It is hoped that this monograph will be useful as a baseline taxonomic reference for future studies of black flies in Vietnam and neighbouring countries.

  11. Fluxes of energy, H2O, and CO2 between the atmosphere and the monsoon tropical forest in Southern Vietnam.

    PubMed

    Kurbatova, Yu A; Kuricheva, O A; Avilov, V K; Dinh, Ba Duy; Kuznetsov, A N

    2015-01-01

    The 2.5-year dynamics of heat, water and carbon dioxide fluxes in the tropical monsoon semi-evergreen forest in Southern Vietnam obtained by means of continuous eddy covariance observations using standard procedures of FLUXNET global network are analyzed. The features of wet seasons during the measurement period were close to long-term average ones, but dry seasons had a great heterogeneity. The maximal duration of the period with little precipitation was 4 months. The annual radiation balance in the south of Vietnam exceeded the balance at all stations of FLUXNET in tropical forests, except one. Annual evapotranspiration in monsoon forest of south of Vietnam is approximately equal to the evaporation of the rain forests of Central Amazonia. During the wet season evapotranspiration spent 80% of the radiation balance, and in the driest months this value decreased to 50%. In the dry season reduction of evapotranspiration and gross primary production was relatively small due to photosynthesizing trees of 2-4 canopy sub-layers. For the first time a large net sink of carbon dioxide from the atmosphere in the monsoon forest ecosystem was identified.

  12. Feasibility of a mindfulness-based intervention to address youth issues in Vietnam.

    PubMed

    Le, Thao N; Trieu, Don T

    2016-06-01

    Youth problems including risky sex, drug use, violence and mental health issues are on the rise in Vietnam. Mindfulness is proposed as one way to address unskillful responses to stress that give rise to these behavioral and psychosocial issues in Vietnam. This study explores the feasibility of a mindfulness program for adolescents and young adults in a central city in Vietnam. The mindfulness-based intervention was comprised 1-h daily session over 3 weeks that was conducted at two different sites, one with handicapped adolescents/young adults at the Vocational School for Handicapped and the other with at-risk youth at a semi-private high school. Forty-two Vietnamese youth participants and five Vietnamese teachers/facilitators who were trained in the mindfulness program provided personal reflections of their experiences. Analyses of the qualitative data suggest that mindfulness was enthusiastically received and accepted by both youth and teachers. There is strong indication that mindfulness is promising as a prevention strategy to help with stress and to build important life skills among Vietnamese youth. © The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  13. Migration and persistence of human influenza A viruses, Vietnam, 2001-2008.

    PubMed

    Le, Mai Quynh; Lam, Ha Minh; Cuong, Vuong Duc; Lam, Tommy Tsan-Yuk; Halpin, Rebecca A; Wentworth, David E; Hien, Nguyen Tran; Thanh, Le Thi; Phuong, Hoang Vu Mai; Horby, Peter; Boni, Maciej F

    2013-11-01

    Understanding global influenza migration and persistence is crucial for vaccine strain selection. Using 240 new human influenza A virus whole genomes collected in Vietnam during 2001-2008, we looked for persistence patterns and migratory connections between Vietnam and other countries. We found that viruses in Vietnam migrate to and from China, Hong Kong, Taiwan, Cambodia, Japan, South Korea, and the United States. We attempted to reduce geographic bias by generating phylogenies subsampled at the year and country levels. However, migration events in these phylogenies were still driven by the presence or absence of sequence data, indicating that an epidemiologic study design that controls for prevalence is required for robust migration analysis. With whole-genome data, most migration events are not detectable from the phylogeny of the hemagglutinin segment alone, although general migratory relationships between Vietnam and other countries are visible in the hemagglutinin phylogeny. It is possible that virus lineages in Vietnam persisted for >1 year.

  14. There Can Be Only One: An Analysis of Operational Artists in Vietnam

    DTIC Science & Technology

    2017-05-05

    elevated, in the case of the Vietnam comparative study here, to the theater commander. 6...factors in identifying the true Operational Artist in the Vietnam case study as well as future conflicts. This is where the creativity that defines...difference between successful and unsuccessful Operational Artists in the sense this monograph proposes. This is a comparative case study between GEN Paul

  15. Multicultural Parent Education.

    ERIC Educational Resources Information Center

    Strom, Robert; And Others

    1992-01-01

    Discusses findings from interviews with immigrant and refugee parents from Vietnam and Central and South America in Alberta, Canada, regarding concerns and educational needs. Reports concerns about children not speaking their native language and greater independence for children in Canada. Describes a multicultural parent education program…

  16. Total Factor Productivity Growth, Technical Progress & Efficiency Change in Vietnam Coal Industry - Nonparametric Approach

    NASA Astrophysics Data System (ADS)

    Phuong, Vu Hung

    2018-03-01

    This research applies Data Envelopment Analysis (DEA) approach to analyze Total Factor Productivity (TFP) and efficiency changes in Vietnam coal mining industry from 2007 to 2013. The TFP of Vietnam coal mining companies decreased due to slow technological progress and unimproved efficiency. The decadence of technical efficiency in many enterprises proved that the coal mining industry has a large potential to increase productivity through technical efficiency improvement. Enhancing human resource training, technology and research & development investment could help the industry to improve efficiency and productivity in Vietnam coal mining industry.

  17. A novel strain of porcine deltacoronavirus in Vietnam.

    PubMed

    Le, Van Phan; Song, Sok; An, Byung-Hyun; Park, Gyu-Nam; Pham, Ngoc Thach; Le, Dinh Quyen; Nguyen, Van Tam; Vu, Thi Thu Hang; Kim, Ki-Sun; Choe, SeEun; An, Dong-Jun

    2018-01-01

    Two porcine deltacoronavirus (PDCoV) strains (Binh21 and HaNoi6) were isolated from two pig farms in North Vietnam. Phylogenetic analysis of the complete genomes and the Spike and Membrane genes revealed that the two Vietnam PDCoVs belong to the same lineage as PDCoVs from Thailand and Laos; however, the N genes belonged to the same lineage as PDCoVs from the USA, Korea, China, and Hong Kong. The recombination detection program subsequently identified the major parent (S5011 strain) and minor parent (HKU15-44 strain) of the two Vietnam PDCoV strains (p < 0.01).

  18. Catastrophic floods and tropical storms over the last 120 years on the Dak Bla River, Central Vietnam

    NASA Astrophysics Data System (ADS)

    Tran, Trang; Stevens, Lora; Vu, Tich; Le, Thuyen

    2017-04-01

    Catastrophic floods are a common natural disaster in the Central Highlands of Vietnam. Given the region's rapid economic development, including an expanding agricultural base and hydroelectric dams, it is important to understand past flood frequency and magnitude. Although mountainous, the highly weathered landscape is not conducive to significant preservation of slack water deposits. Thus, grain size, magnetic susceptibility and carbon/nitrogen ratios of sediment cores from two abandoned channels of the Dak Bla River were used to identify major flood events during the last 120 years. There is a notable increase in magnitude during the late 20th century, with the most pronounced flood occurring in 1972 during the Second Indochina (American-Vietnam) War. The dramatic increase in sediment deposition during the late 20th century is believed to result from anthropogenic alteration of the catchment, including deforestation by bombing during the Second Indochina War and conversion of forest to cropland. Meteorological and river gauge data are rare in Vietnam and span only the last 40 years on the Dak Bla River. For the duration of these records, all major modern floods are triggered by tropical storms bringing excessive rain late in the wet season. Although non-conformable and young radiocarbon dates limit our ability to correlate earlier floods with known tropical storms, the number of direct typhoon strikes and floods during the last 120 years are similar suggesting a possible link beyond the instrumental record. From these data we propose that neither wet years (e.g strong monsoon years) or typhoons are individually responsible for major floods. Catastrophic flooding is a result of a direct tropical storm strike after a normal to wet monsoon season saturates the landscape. If this model is correct, it may be possible to create short-term predictions of flooding help mitigate large-scale disasters. The caveat is that the occurrence and tracks of tropical storms are difficult to predict. There is no correlation between tropical storms in the Central Highlands and ENSO events or global warming.

  19. Challenges Encountered by Vietnamese Nurses When Caring for Patients With Cancer.

    PubMed

    Thuy Nguyen, Ly; Clemenceau Annoussamy, Lourdes; LeBaron, Virginia T

    2017-03-01

    Providing holistic care is acknowledged as central to providing quality care for patients with cancer, but providing competent nursing care consistent with these approaches remains a challenge for nurses in Vietnam. Obstacles for Vietnamese oncology nurses include their low status, the limited scope of nursing practice, work overload in a hierarchical system, and cultural beliefs that view death and dying as taboo. Additional research to support oncology nurses in Vietnam must acknowledge the merits of improving nursing education as an important strategy for enhancing nursing autonomy, quality of care, and outcomes for the increasing number of patients with cancer in low- and middle-income countries.

  20. The Changing Face of War in Textbooks: Depictions of World War II and Vietnam, 1970-2009

    ERIC Educational Resources Information Center

    Lachmann, Richard; Mitchell, Lacy

    2014-01-01

    How have U.S. high school textbook depictions of World War II and Vietnam changed since the 1970s? We examined 102 textbooks published from 1970 to 2009 to see how they treated U.S. involvement in World War II and Vietnam. Our content analysis of high school history textbooks finds that U.S. textbooks increasingly focus on the personal experiences…

  1. Vietnam Country Analysis Brief

    EIA Publications

    2017-01-01

    Over the past few decades Vietnam has emerged as an important oil and natural gas producer in Southeast Asia. Vietnam has boosted exploration activities and allowed for greater foreign company investment and cooperation in the oil and gas sectors, and introduced limited market reforms to support the energy industry. On the demand side, the country’s rapid economic growth, industrialization, and export market expansion have spurred domestic energy consumption over the past decade.

  2. Combat and herbicide exposures in Vietnam among a sample of American Legionnaires

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Stellman, S.D.; Stellman, J.M.; Sommer, J.F. Jr.

    A cross-sectional survey of 6,810 randomly selected members of The American Legion in six states who served in the US Armed Forces during the Vietnam Era was conducted by a mailed questionnaire. Combat stress was evaluated by a previously validated eight-item scale. Exposure to Agent Orange and other herbicides was estimated via exposure probability index previously developed by the authors which uses an algorithm based on the combined Air Force and Joint Services HERBS files of spray data. Two-fifths of the men had served in Southeast Asia, generally at the same time during which the major proportion of herbicides weremore » used; the remaining subjects served elsewhere. Both combat and Agent Orange exposure exhibited distinct, meaningful distributions among Vietnam veterans with service in Southeast Asia and were also correlated with each other. Our analysis demonstrates conclusively that mere presence in Vietnam cannot be used as a proxy for exposure to Agent Orange. Categorization of Vietnam veterans according to herbicide exposure can be successfully accomplished, based on an existing detailed herbicide application data base. This analysis, together with the consistent dose-related results obtained in this series of papers on health and behavioral effects, demonstrates the utility of questionnaire-derived herbicide and combat exposure measures for epidemiologic study of Vietnam veterans.« less

  3. Phylodynamic analysis of the dissemination of HIV-1 CRF01_AE in Vietnam.

    PubMed

    Liao, Huanan; Tee, Kok Keng; Hase, Saiki; Uenishi, Rie; Li, Xiao-Jie; Kusagawa, Shigeru; Thang, Pham Hong; Hien, Nguyen Tran; Pybus, Oliver G; Takebe, Yutaka

    2009-08-15

    To estimate the epidemic history of HIV-1 CRF01_AE in Vietnam and adjacent Guangxi, China, we determined near full-length nucleotide sequences of CRF01_AE from a total of 33 specimens collected in 1997-1998 from different geographic regions and risk populations in Vietnam. Phylogenetic and Bayesian molecular clock analyses were performed to estimate the date of origin of CRF01_AE lineages. Our study reconstructs the timescale of CRF01_AE expansion in Vietnam and neighboring regions and suggests that the series of CRF01_AE epidemics in Vietnam arose by the sequential introduction of founder strains into new locations and risk groups. CRF01_AE appears to have been present among heterosexuals in South-Vietnam for more than a decade prior to its epidemic spread in the early 1990s. In the late 1980s, the virus spread to IDUs in Southern Vietnam and subsequently in the mid-1990s to IDUs further north. Our results indicate the northward dissemination of CRF01_AE during this time.

  4. Molecular epidemiology of rabies virus in Vietnam (2006-2009).

    PubMed

    Nguyen, Anh K T; Nguyen, Dong V; Ngo, Giang C; Nguyen, Thu T; Inoue, Satoshi; Yamada, Akio; Dinh, Xuyen K; Nguyen, Dung V; Phan, Thao X; Pham, Bao Q; Nguyen, Hien T; Nguyen, Hanh T H

    2011-01-01

    This study was aimed at determining the molecular epidemiology of rabies virus (RABV) circulating in Vietnam. Intra vitam samples (saliva and cerebrospinal fluid) were collected from 31 patients who were believed to have rabies and were admitted to hospitals in northern provinces of Vietnam. Brain samples were collected from 176 sick or furious rabid dogs from all over the country. The human and canine samples were subjected to reverse transcription-polymerase chain reaction analysis. The findings showed that 23 patients tested positive for RABV. Interestingly, 5 rabies patients did not have any history of dog or cat bites, but they had an experience of butchering dogs or cats, or consuming their meat. RABV was also detected in 2 of the 100 sick dogs from slaughterhouses. Molecular epidemiological analysis of 27 RABV strains showed that these viruses could be classified into two groups. The RABVs classified into Group 1 were distributed throughout Vietnam and had sequence similarity with the strains from China, Thailand, Malaysia, and the Philippines. However, the RABVs classified into Group 2 were only found in the northern provinces of Vietnam and showed high sequence similarity with the strain from southern China. This finding suggested the recent influx of Group 2 RABVs between Vietnam and China across the border. Although the incidence of rabies due to circulating RABVs in slaughterhouses is less common than that due to dog bite, the national program for rabies control and prevention in Vietnam should include monitoring of the health of dogs meant for human consumption and vaccination for workers at dog slaughterhouses. Further, monitoring of and research on the circulating RABVs in dog markets may help to determine the cause of rabies and control the spread of rabies in slaughterhouses in Vietnam.

  5. Partial mitochondrial DNA sequences suggest the existence of a cryptic species within the Leucosphyrus group of the genus Anopheles (Diptera: Culicidae), forest malaria vectors, in northern Vietnam.

    PubMed

    Takano, Kohei Takenaka; Nguyen, Ngoc Thi Hong; Nguyen, Binh Thi Huong; Sunahara, Toshihiko; Yasunami, Michio; Nguyen, Manh Duc; Takagi, Masahiro

    2010-04-30

    During the last decade, Southeast Asian countries have been very successful in reducing the burden of malaria. However, malaria remains endemic in these countries, especially in remote and forested areas. The Leucosphyrus group of the genus Anopheles harbors the most important malaria vectors in forested areas of Southeast Asia. In Vietnam, previous molecular studies have resulted in the identification of only Anopheles dirus sensu stricto (previously known as An. dirus species A) among the Leucosphyrus group members. However, Vietnamese entomologists have recognized that mosquitoes belonging to the Leucosphyrus group in northern Vietnam exhibit morphological characteristics similar to those of Anopheles takasagoensis, which has been reported only from Taiwan. Here, we aimed to confirm the genetic and morphological identities of the members of the Leucosphyrus group in Vietnam. In the molecular phylogenetic trees reconstructed using partial COI and ND6 mitochondrial gene sequences, samples collected from southern and central Vietnam clustered together with GenBank sequences of An. dirus that were obtained from Thailand. However, samples from northern Vietnam formed a distinct clade separated from both An. dirus and An. takasagoensis by other valid species. The results suggest the existence of a cryptic species in northern Vietnam that is morphologically similar to, but phylogenetically distant from both An. dirus and An. takasagoensis. We have tentatively designated this possible cryptic species as Anopheles aff. takasagoensis for convenience, until a valid name is assigned. However, it is difficult to distinguish the species solely on the basis of morphological characteristics. Further studies on such as karyotypes and polytene chromosome banding patterns are necessary to confirm whether An. aff. takasagoensis is a valid species. Moreover, studies on (1) the geographic distribution, which is potentially spreading along the Vietnam, China, Laos, and Myanmar borders; (2) morphological and ecological characteristics; and (3) vectorial capacity of this newly identified cryptic species of An. dirus, which is one of the most important malaria vectors in the mainland of Southeast Asia, are necessary for planning efficient malaria vector control programs in this region.

  6. Molecular Characterization of β-Thalassemia Mutations in Central Vietnam.

    PubMed

    Doro, Maria G; Casu, Giuseppina; Frogheri, Laura; Persico, Ivana; Triet, Le Phan Minh; Hoa, Phan Thi Thuy; Hoang, Nguyen Huy; Pirastru, Monica; Mereu, Paolo; Cucca, Francesco; Masala, Bruno

    2017-03-01

    The molecular basis of β-thalassemia (β-thal) mutations in North and in South Vietnam have been described during the past 15 years, whereas limited data were available concerning the central area of the country. In this study, we describe the molecular characterization and frequency of β-globin gene mutations in the Thua Thien Hue Province of Central Vietnam as the result of a first survey conducted in 22 transfusion-dependent patients, and four unrelated heterozygotes. Nine different known mutations were identified (seven of the β 0 and two of the β + type) in a total of 48 chromosomes. The most common was codon 26 (G>A) or Hb E (HBB: c.79 G>A) accounting for 29.2% of the total studied chromosomes, followed by codon 17 (A>T) (HBB: c.52 A>T) (25.0%), and codons 41/42 (-TTCT) (HBB: c.126_129delCTTT) (18.8%). Other mutations with appreciable frequencies (6.3-8.3%) were IVS-I-1 (G>T) (HBB: c.92+1 G>T), codon 26 (G>T) (HBB: c.79 G>T) and codons 71/72 (+A) (HBB: c.216_217insA). Relatively rarer (2.0%) were the promoter -28 (A>G) (HBB: c.78 A>G) mutation, the codon 95 (+A) (HBB: c.287_288insA), which is reported only in the Vietnamese, and the codons 14/15 (+G) (HBB: c.45_46insG) mutation, thus far observed only in Thailand. Results are relevant for implementing appropriate measures for β-thal prevention and control in the region as well as in the whole country.

  7. Clonorchis sinensis and Opisthorchis spp. in Vietnam: current status and prospects.

    PubMed

    Doanh, Pham N; Nawa, Yukifumi

    2016-01-01

    Clonorchis sinensis and Opisthorchis viverrini are clinically important small liver flukes because of their known association with development of cholangiocarcinoma. In Vietnam, high prevalence of C. sinensis infection in humans was previously reported in northern provinces, and O. viverrini infection has been detected in several central provinces. However, diagnosis of C. sinensis and O. viverrini infections in the past was merely based on faecal egg examination. This method alone can lead to misidentification at the species level because of morphological similarity between the eggs of these liver flukes and minute intestinal trematodes of the family Heterophyidae. In fact, recent surveys in Vietnam revealed that infection with several minute intestinal flukes, such as Haplorchis pumilio and H. taichui, are much more common than infection with C. sinensis or O. viverrini, and they often co-infect humans. Thus, previously reported prevalence of small liver fluke infection in Vietnam was likely over-estimated due to mis identification of parasites in copro-parasitological examinations. In addition, there is some confusion about identification of cercariae, metacercariae and also adults of C. sinensis and O. viverrini in intermediate and definitive hosts. The aim of this review is, therefore, to draw realistic pictures of the past and present scientific reports on the epidemiology and biology of C. sinensis and Opisthorchis spp. infection in Vietnam. © The Author 2015. Published by Oxford University Press on behalf of Royal Society of Tropical Medicine and Hygiene. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  8. SLIPTA e-Tool improves laboratory audit process in Vietnam and Cambodia.

    PubMed

    Nguyen, Thuong T; McKinney, Barbara; Pierson, Antoine; Luong, Khue N; Hoang, Quynh T; Meharwal, Sandeep; Carvalho, Humberto M; Nguyen, Cuong Q; Nguyen, Kim T; Bond, Kyle B

    2014-01-01

    The Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist is used worldwide to drive quality improvement in laboratories in developing countries and to assess the effectiveness of interventions such as the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme. However, the paper-based format of the checklist makes administration cumbersome and limits timely analysis and communication of results. In early 2012, the SLMTA team in Vietnam developed an electronic SLIPTA checklist tool. The e-Tool was pilot tested in Vietnam in mid-2012 and revised. It was used during SLMTA implementation in Vietnam and Cambodia in 2012 and 2013 and further revised based on auditors' feedback about usability. The SLIPTA e-Tool enabled rapid turn-around of audit results, reduced workload and language barriers and facilitated analysis of national results. Benefits of the e-Tool will be magnified with in-country scale-up of laboratory quality improvement efforts and potential expansion to other countries.

  9. Alexandre Yersin (1863-1943): discoverer of the plague bacillus, explorer and agronomist.

    PubMed

    Hawgood, Barbara J

    2008-08-01

    Alexandre Yersin was born in French Switzerland and later took French nationality. While a medical student he worked in Paris with Emile Roux to discover the exotoxin produced by the diphtheria bacillus. Two years after graduation, he left Paris for French Indochina where he was the first European to explore and map the central highlands of Vietnam. As a member of the French Colonial Health Service he was sent to Hong Kong in 1894 to investigate the outbreak of bubonic plague. He isolated from buboes the causative bacillus that later was named Yersinia pestis in his honour. In Vietnam, Yersin established a Pasteur Institute at the coastal village of Nha Trang where he lived for the rest of his life. He developed vaccines and antisera for both men and animals and, as an agronomist, he introduced the Brazilian rubber tree and Peruvian cinchona tree (for quinine) into the country. In Vietnam, as in France, the name of Yersin continues to be venerated.

  10. THE ROLES OF COMBAT EXPOSURE, PERSONAL VULNERABILITY, AND INVOLVEMENT IN HARM TO CIVILIANS OR PRISONERS IN VIETNAM WAR-RELATED POSTTRAUMATIC STRESS DISORDER

    PubMed Central

    Dohrenwend, Bruce P.; Yager, Thomas J.; Wall, Melanie M.; Adams, Ben G.

    2014-01-01

    The diagnosis, Posttraumatic Stress Disorder, was introduced in 1980 amidst debate about the psychiatric toll of the Vietnam War. There is controversy, however, about its central assumption that potentially traumatic stressors are more important than personal vulnerability in causing the disorder. We tested this assumption with data from a rigorously diagnosed male subsample (n = 260) from the National Vietnam Veterans Readjustment Study. Combat exposure, pre-war vulnerability, and involvement in harming civilians or prisoners were examined, with only combat exposure proving necessary for disorder onset. While none of the three factors proved sufficient, estimated onset reached 97% for veterans high on all three, with harm to civilians or prisoners showing the largest independent contribution. Severity of combat exposure proved more important than pre-war vulnerability in onset; pre-war vulnerability at least as important in long-term persistence. Implications for the primacy of the stressor assumption, further research, and policy are discussed. PMID:25309830

  11. Migration and Persistence of Human Influenza A Viruses, Vietnam, 2001–2008

    PubMed Central

    Le, Mai Quynh; Lam, Ha Minh; Cuong, Vuong Duc; Lam, Tommy Tsan-Yuk; Halpin, Rebecca A; Wentworth, David E; Hien, Nguyen Tran; Thanh, Le Thi; Phuong, Hoang Vu Mai; Horby, Peter

    2013-01-01

    Understanding global influenza migration and persistence is crucial for vaccine strain selection. Using 240 new human influenza A virus whole genomes collected in Vietnam during 2001–2008, we looked for persistence patterns and migratory connections between Vietnam and other countries. We found that viruses in Vietnam migrate to and from China, Hong Kong, Taiwan, Cambodia, Japan, South Korea, and the United States. We attempted to reduce geographic bias by generating phylogenies subsampled at the year and country levels. However, migration events in these phylogenies were still driven by the presence or absence of sequence data, indicating that an epidemiologic study design that controls for prevalence is required for robust migration analysis. With whole-genome data, most migration events are not detectable from the phylogeny of the hemagglutinin segment alone, although general migratory relationships between Vietnam and other countries are visible in the hemagglutinin phylogeny. It is possible that virus lineages in Vietnam persisted for >1 year. PMID:24188643

  12. Distribution and depth profiles of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and polychlorinated biphenyls in sediment collected from offshore waters of Central Vietnam.

    PubMed

    Tri, Tran Manh; Anh, Hoang Quoc; Tham, Trinh Thi; Van Quy, Tran; Long, Nguyen Quang; Nhung, Dao Thi; Nakamura, Masafumi; Nishida, Masayo; Maeda, Yasuaki; Van Boi, Luu; Minh, Tu Binh

    2016-05-15

    Concentrations of PCBs and OCPs were measured in 35 surface sediment samples collected from offshore waters of Central Vietnam. The mean concentrations of PCBs, HCHs, and DDTs in surface sediments were 86.5, 37.0, and 44.5pgg(-1), respectively. Additionally, nine PCDDs, eleven PCDFs, and twelve dl-PCBs were also examined in 19 sediment core samples collected from five locations. Concentration of PCDDs, PCDFs, and dl-PCBs ranged from 200 to 460, 0.39 to 2.9, and 1.6 to 22pgg(-1), respectively. OCDD was detected at the highest concentration, ranged from 100 to 300pgg(-1). Generally, the concentrations of PCDD/Fs at shallower depths were higher, meanwhile the depth profiles of dl-PCBs in sediment cores were different than the depth profiles of PCDD/Fs. The results suggest that the pollution of PCBs might be from many different sources leading to the variation between depths. Copyright © 2016 Elsevier Ltd. All rights reserved.

  13. Village-based primary health care in the Central Highlands of Vietnam.

    PubMed

    Barrett, B; Ladinsky, J; Volk, N

    2001-02-01

    This paper describes the first year of an ongoing village health care and economic development project in the Krong Buk district of Dak Lak province in Vietnam's Central Highlands. The project serves 21 villages with a total population of just over 15,000. Most belong to ethnic minority groups. Physicians from the province capital of Boun Me Thuot were trained by a multi-disciplinary team of American health care workers to be trainers and supervisors of 21 village health care workers (VHWs). Two months later, a VHW from each village was trained in primary and preventive health care by the physician-supervisors. Since this initial training, each VHW has been provided with materials, medicines and monthly supervision by the physician-supervisors. The health care component has been complemented by an economic development project based on a system of small loans. Data from the first year of monthly reports and from a baseline survey are presented in this paper.

  14. Gradients in precipitation and seasonality between Central and Eastern Asia (Mongolia, Northern Vietnam) during the Oligocene with implication for earlier monsoonal circulation

    NASA Astrophysics Data System (ADS)

    Boehme, Madelaine; Krings, Michael; Prieto, Jérome; Schneider, Simon

    2010-05-01

    Today Central and Eastern Asia are characterized by strong contrast in the amount and the annual distribution of rainfall as well as the seasonality in temperature, which is attributed to the uplifted Tibetian Plateau generating monsoonal circulation. Whereas Central Asia is characterized by strong continentality with cold winters and little rainfall concentrated in a short rainy season, the southern part of East Asia exhibit a paratropical climate with high amounts in precipitation distributed relatively even through the year. Palaeontological data (vertebrates and plant remains) from the Eocene and Oligocene of Mongolia and Northern Vietnam indicate that a strong gradient in precipitation and seasonality between Central Asia and East Asia was already established during the Oligocene, which emphasise the establishment of substantial monsoonal circulation at that time. Fossil amphibians and reptiles from Mongolia (45° N, 101° E; Böhme 2007) indicate a strong and abrupt drying and winter cooling at the Eocene-Oligocene boundary consistent with previous results (Dupont-Nivet et al. 2007). Late Eocene assemblages are characterized by crocodiles, salamanders and diverse aquatic turtles, whereas Early Oligocene faunas constitutes of pelobatid frogs, agamid and anguid squamates, diverse species of lizards, and an erycine boide snake. The environmental preferences of both contrasting assemblages point to a severe climate event around 34 myr ago, resulting in the lost of permanent freshwater bodies under humid and winter mild climate and the spread of open landscapes without permanent freshwater bodies under a dry arid to semi-arid climate with only a short rainy season. Oligocene reptiles, macro- and micro-botanical remains, as well as palaeosols from Northern Vietnam (22° N, 107° E; Böhme et al. subm.) suggest warm-humid, (para-) tropical climates with low seasonality in temperature and precipitation. Besides a high diversity in semi-aquatic turtles and the presence of large-sized longirostrine crocodiles we found diverse ferns, including arborescent Osmundaceae and planosol paleosoils similar to those which developed today in this region. Böhme, M. 2007. Oligocene-Miocene Vertebrates from the Valley of Lakes (Central Mongolia): Morphology, phylogenetic and stratigraphic implications - 3. Herpetofauna (Anura, Squamata) and palaeoclimatic implications: preliminary results.- Annalen des Naturhistorischen Museums Wien 108A: 43-52. Böhme, M., Prieto J., Schneider, S. (submitted): Cenozoic basins of Northern Vietnam: biostratigraphy, vertebrate and invertebrate fauna.- Journal of Asian Earth Sciences. Dupont-Nivet, G., Krijgsman, W., Langereis, C.G., Abels, H. A., Dai, S. and Fang, X. 2007. Tibetan Plateau aridification linked to global cooling at the Eocene-Oligocene transition.- Nature 445, 635-638.

  15. A new species of Chirixalus from Vietnam (Anura: Rhacophoridae).

    PubMed

    Matsui, Masafumi; Orlov, Nikolai

    2004-06-01

    A new rhacophorid species is described on the basis of two specimens collected from Vu Quang Nature Reserve, Ha Tinh Province, central Vietnam. The species has inner and outer fingers that are not opposable, but in order to avoid taxonomic confusion, it is tentatively assigned to the genus Chirixalus. It is a large Chirixalus, having robust body with warty, grayish dorsum and immaculate ventrum, and lacking large pollex, white granules around anus and on limbs, and dark markings on sides of body. It is most similar to C. eiffingeri and C. idiootocus in external morphology, and much different from the other congeners. Generic definition of the genera Chirixalus and Kurixalus is discussed.

  16. Geographic distribution of Aedes aegypti and Aedes albopictus collected from used tires in Vietnam.

    PubMed

    Higa, Yukiko; Yen, Nguyen Thi; Kawada, Hitoshi; Son, Tran Hai; Hoa, Nguyen Thuy; Takagi, Masahiro

    2010-03-01

    The spatial distribution of Aedes aegypti and Aedes albopictus in environmental and geographical zones, e.g., urban-rural, coastal-mountainous, and north-south, was investigated throughout Vietnam. Immature stages were collected from used tires along roads. The effects of regions, seasons, and the degree of urbanization on the density and the frequency were statistically analyzed. Aedes aegypti predominated in the southern and central regions, while Ae. albopictus predominated in the northern region, which may be related to climatic conditions (temperature and rainfall). Larval collection from used tires may be suitable to assess rapidly the current distribution of dengue mosquitoes for estimating health risks and implementing vector control measures.

  17. Early Childhood Trends around the World

    ERIC Educational Resources Information Center

    Neugebauer, Roger

    2007-01-01

    This article shares the views of the members of the World Forum community regarding early childhood education trends around the world. It summarizes trends from Eastern Europe, the Caucasus, Central Asia, Denmark, The Netherlands, Italy, Turkey, Nepal, Vietnam, Tajikistan, Hong Kong, Singapore, India, New Zealand, Jordan, Palestine, Egypt,…

  18. Information and Communication Technology in Teacher Education in Vietnam: From Policy to Practice

    ERIC Educational Resources Information Center

    Peeraer, Jef; Van Petegem, Peter

    2012-01-01

    During the school year 2008-2009, the Ministry of Education and Training of Vietnam launched the "Year of ICT" to produce a breakthrough in educational innovation. In light of this development we have carried out a policy analysis to study the national vision on ICT in education. The policy analysis takes into account a decade of…

  19. Highly Pathogenic H5N1 Avian Influenza Viruses Exhibit Few Barriers to Gene Flow in Vietnam

    PubMed Central

    Carrel, Margaret; Wan, Xiu-Feng; Nguyen, Tung; Emch, Michael

    2013-01-01

    Locating areas where genetic change is inhibited can illuminate underlying processes that drive evolution of pathogens. The persistence of highly pathogenic H5N1 avian influenza in Vietnam since 2003, and the continuous molecular evolution of Vietnamese avian influenza viruses, indicates that local environmental factors are supportive not only of incidence but also of viral adaptation. This article explores whether gene flow is constant across Vietnam, or whether there exist boundary areas where gene flow exhibits discontinuity. Using a dataset of 125 highly pathogenic H5N1 avian influenza viruses, principal components analysis and wombling analysis are used to indicate the location, magnitude, and statistical significance of genetic boundaries. Results show that a small number of geographically minor boundaries to gene flow in highly pathogenic H5N1 avian influenza viruses exist in Vietnam, but that overall there is little division in genetic exchange. This suggests that differences in genetic characteristics of viruses from one region to another are not the result of barriers to H5N1 viral exchange in Vietnam, and that H5N1 avian influenza is able to spread relatively unimpeded across the country. PMID:22350419

  20. Authoritarianism as a Driver of U.S. Foreign Policy: The Cases of Myanmar, Vietnam, and North Korea

    DTIC Science & Technology

    2016-12-01

    environments. E. RESEARCH DESIGN The methodology of this paper employs statistical analysis and comparative case studies. With proxy scales that...U.S. FOREIGN POLICY: THE CASES OF MYANMAR, VIETNAM, AND NORTH KOREA by Rang Lee December 2016 Thesis Co-Advisor: Tristan Mabry Thesis Co-Advisor...COVERED Master’s thesis 4. TITLE AND SUBTITLE AUTHORITARIANISM AS A DRIVER OF U.S. FOREIGN POLICY: THE CASES OF MYANMAR, VIETNAM, AND NORTH KOREA 5

  1. Organizational factors, planning capacity, and integration challenges constrain provincial planning processes for nutrition in decentralizing Vietnam.

    PubMed

    Lapping, Karin; Frongillo, Edward A; Nguyen, Phuong H; Coates, Jennifer; Webb, Patrick; Menon, Purnima

    2014-09-01

    Translating national policies and guidelines into effective action at the subnational level (e.g., province or region) is a prerequisite for ensuring an impact on nutrition. In several countries, including Vietnam, the focus of this paper, this process is affected by the quality of the decentralized process of planning and action. This study examined how provincial planning processes for nutrition occurred in Vietnam during 2009 and 2010. Key goals were to understand variability in processes across provinces, identify factors that influenced the process, and assess the usefulness of the process for individuals involved in planning and action. A qualitative case-study methodology was used. Data were drawn from interviews with 51 government officials in eight provinces. The study found little variability in the planning process among these eight provinces, probably due to a planning process that was predominantly a fiscal exercise within the confines of a largely centralized structure. Respondents were almost unanimous about the main barriers: a top-down approach to planning, limited human capacity for effective planning at subnational levels, and difficulty in integrating actions from multiple sectors. Provincial-level actors were deeply dissatisfied with the nature of their role in the process. Despite the rhetoric to the contrary, too much power is probably still retained at the central level. A strategic multiyear approach is needed to strengthen the provincial planning process and address many of the key barriers identified in this study.

  2. Typhoon Doksuri Flooding in 2017 - High-Resolution Inundation Mapping and Monitoring from Sentinel Satellite SAR Data

    NASA Astrophysics Data System (ADS)

    Nghiem, S. V.; Nguyen, D. T.

    2017-12-01

    In 2017, typhoons and hurricanes have inflicted catastrophic flooding across extensive regions in many countries on several continents, including Asia and North America. The U.S. Federal Emergency Management Agency (FEMA) requested urgent support for flood mapping and monitoring in an emergency response to the devastating flood situation. An innovative satellite remote sensing method, called the Depolarization Reduction Algorithm for Global Observations of inundatioN (DRAGON), has been developed and implemented for use with Sentinel synthetic aperture radar (SAR) satellite data at a resolution of 10 meters to identify, map, and monitor inundation including pre-existing water bodies and newly flooded areas. Because Sentinel SAR operates at C-band microwave frequency, it can be used for flood mapping regardless of could cover conditions typically associated with storms, and thus can provide immediate results without the need to wait for the clouds to clear out. In Southeast Asia, Typhoon Doksuri caused significant flooding across extensive regions in Vietnam and other countries in September 2017. Figure 1 presents the flood mapping result over a region around Hà Tĩnh (north central coast of Vietnam) showing flood inundated areas (in yellow) on 16 September 2017 together with pre-existing surface water (in blue) on 4 September 2017. This is just one example selected from a larger flood map covering an extensive region of about 250 km x 680 km all along the central coast of Vietnam.

  3. Understanding U.S. Foreign Policy: The Role of the Press.

    ERIC Educational Resources Information Center

    DeYoung, Karen

    1985-01-01

    The battle between the media and the government over what the public should know and whose side the press should be on began long before Vietnam. A history of censorship is presented. The American public deserve to hear all sides, for example with regard to Central America. (RM)

  4. 77 FR 4047 - Disease, Disability, and Injury Prevention and Control Special Emphasis Panel (SEP): Initial Review

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-26

    ... announced below concerns Epidemiology, Prevention and Treatment of Influenza and Other Respiratory... Diseases in Vietnam, IP12-002, The Incidence of Community Associated Influenza and Other Respiratory... Respiratory Infections in Panama and Central America Region, IP12-006, initial review. In accordance with...

  5. Mental health, life functioning and risk factors among people exposed to frequent natural disasters and chronic poverty in Vietnam.

    PubMed

    Pollack, Amie Alley; Weiss, Bahr; Trung, Lam Tu

    2016-06-01

    People living in low- and middle-income countries (LMIC) are at increased risk for exposure to major natural disasters, which places them at increased risk for mental health problems. Evidence is less clear, however, regarding the effects of less severe but more frequent natural disasters, which are likely to increase due to global climate change. To examine the mental health and life functioning, and their predictors, of people living in central coastal Vietnam, an area characterized by high risk for natural disasters and poverty. 1000 individuals were randomly selected from 5 provinces in central coastal Vietnam. Individuals were assessed cross-sectionally for exposure to major storms and other traumatic events (Post-traumatic Diagnostic Scale; PDS), financial stress (Chronic Financial Stress Scale), depression (PHQ-9), anxiety (GAD-7), PTSD (PDS), somatic syndrome (SCL-90-R), alcohol dependency (ICD-10), self-perceived general physical health (SF 36), and functional impairment (PDS life functioning section); caseness was determined using the various measures' algorithms. 22.7% percent of the sample ( n =227) met caseness criteria in one or more mental health domains, and 22.1% ( n =221) reported moderate to severe functional impairment. Lifetime exposure to typhoons and other major storms was 99% ( n =978), with 77% ( n =742) reporting traumatic major storm exposure. Moderate to high levels of financial stress were reported by 30% ( n =297). Frequency of exposure to major storms was not associated with increased risk for mental health problems but traumatic exposure to a major storm was. Overall, the strongest predictor of mental health problems was financial stress. Number of traumatic typhoons and other major storms in turn were significant predictors (r 2 = .03) of financial stress. The primary predictor of alcohol dependency was male gender, highlighting the importance of gender roles in development of alcohol abuse in countries like Vietnam. Individuals living in central coastal Vietnam have elevated rates of PTSD, somatic syndrome, and functional impairment but not depression or anxiety. Financial stress was the strongest predictor of mental health problems. Results suggest the importance of conducting broad assessments when providing mental health support for disaster-impacted communities. Study results suggest that one indirect consequence of predicted global climate change may be increased prevalence of mental health problems in communities such as that assessed in the present study, due to increased risk for traumatic storm-related exposure and through indirect effects on financial stress, but not through a general increased risk for major storms. Such results also indicate that when supporting LMIC communities that have experienced natural disasters, it will be important to consider the broader community context including poverty, in addition to the direct effects of the disaster.

  6. ‘Women think pregnancy management means obstetric ultrasound’: Vietnamese obstetricians’ views on the use of ultrasound during pregnancy

    PubMed Central

    Edvardsson, Kristina; Graner, Sophie; Thi, Lan Pham; Åhman, Annika; Small, Rhonda; Lalos, Ann; Mogren, Ingrid

    2015-01-01

    Objective To explore Vietnamese obstetricians’ experiences and views on the role of obstetric ultrasound in clinical management of complicated pregnancy and in situations where maternal and fetal health interests conflict. Design Seventeen obstetricians in northern Vietnam were interviewed as part of the CROss-Country Ultrasound Study (CROCUS) project in 2013. Data were analysed using qualitative content analysis. Results The participants described ultrasound as a central tool in prenatal care, although they called for increased training and resources to prevent inappropriate management. A prevailing overuse driven by women's request and increased commercialisation was described. Other clinical examinations were seen as being disregarded by women in favour of ultrasound, resulting in missed opportunities for identifying potential pregnancy complications. The use of ultrasound for sex selection purposes raised concern among participants. Visualisation of human features or heartbeat during ultrasound was commonly described as the point where the fetus became regarded as a ‘person’. Women were said to prioritise fetal health interests over their own health, particularly if a woman had difficulties becoming pregnant or had undergone assisted fertilisation. The woman's husband and his family were described as having an important role in decision-making in situations of maternal and fetal health conflicts. Conclusions This study provides insight into issues surrounding ultrasound use in contemporary Vietnam, some of which may be specific to this low-income context. It is clear that ultrasound has become a central tool in prenatal care in Vietnam and that it has also been embraced by women. However, there seems to be a need to balance women's demands for obstetric ultrasound with better recognition of the valuable contribution to be made by the full range of clinical examinations in pregnancy, along with a more strategic allocation of resources, that is, use of obstetric ultrasound based on clinical indications. Better regulation of private obstetric practice also appears to be needed. While the root causes of sex selection need to be addressed at societal level, efforts are also required more immediately to find ways to combat the inappropriate use of ultrasound for the purpose of sex selection. PMID:26519131

  7. Genetic characterization of Enterovirus 71 strains circulating in Vietnam in 2012.

    PubMed

    Donato, Celeste; Hoi, Le Thi; Hoa, Nguyen Thi; Hoa, Tran Mai; Van Duyet, Le; Dieu Ngan, Ta Thi; Van Kinh, Nguyen; Vu Trung, Nguyen; Vijaykrishna, Dhanasekaran

    2016-08-01

    Enterovirus 71 subgenogroup C4 caused the largest outbreak of Hand, Foot and Mouth Disease (HFMD) in Vietnam during 2011-2012, resulting in over 200,000 hospitalisations and 207 fatalities. A total of 1917 samples with adequate volume for RT-PCR analysis were collected from patients hospitalised with HFMD throughout Vietnam and 637 were positive for EV71. VP1 gene (n=87) and complete genome (n=9) sequencing was performed. Maximum-likelihood phylogenetic analysis was performed to characterise the B5, C4 and C5 strains detected. Sequence analyses revealed that the dominant subgenogroup associated with the 2012 outbreak was C4, with B5 and C5 strains representing a small proportion of these cases. Numerous countries in the region including Malaysia, Taiwan and China have a large influence on strain diversity in Vietnam and understanding the transmission of EV71 throughout Southeast Asia is vital to inform preventative public health measures and vaccine development efforts. Copyright © 2016 The Authors. Published by Elsevier Inc. All rights reserved.

  8. SLIPTA e-Tool improves laboratory audit process in Vietnam and Cambodia

    PubMed Central

    Nguyen, Thuong T.; McKinney, Barbara; Pierson, Antoine; Luong, Khue N.; Hoang, Quynh T.; Meharwal, Sandeep; Carvalho, Humberto M.; Nguyen, Cuong Q.; Nguyen, Kim T.

    2014-01-01

    Background The Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist is used worldwide to drive quality improvement in laboratories in developing countries and to assess the effectiveness of interventions such as the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme. However, the paper-based format of the checklist makes administration cumbersome and limits timely analysis and communication of results. Development of e-Tool In early 2012, the SLMTA team in Vietnam developed an electronic SLIPTA checklist tool. The e-Tool was pilot tested in Vietnam in mid-2012 and revised. It was used during SLMTA implementation in Vietnam and Cambodia in 2012 and 2013 and further revised based on auditors’ feedback about usability. Outcomes The SLIPTA e-Tool enabled rapid turn-around of audit results, reduced workload and language barriers and facilitated analysis of national results. Benefits of the e-Tool will be magnified with in-country scale-up of laboratory quality improvement efforts and potential expansion to other countries. PMID:29043190

  9. Malaria transmission and vector behaviour in a forested malaria focus in central Vietnam and the implications for vector control

    PubMed Central

    2010-01-01

    Background In Vietnam, malaria is becoming progressively restricted to specific foci where human and vector characteristics alter the known malaria epidemiology, urging for alternative or adapted control strategies. Long-lasting insecticidal hammocks (LLIH) were designed and introduced in Ninh Thuan province, south-central Vietnam, to control malaria in the specific context of forest malaria. An entomological study in this specific forested environment was conducted to assess the behavioural patterns of forest and village vectors and to assess the spatio-temporal risk factors of malaria transmission in the province. Methods Five entomological surveys were conducted in three villages in Ma Noi commune and in five villages in Phuoc Binh commune in Ninh Thuan Province, south-central Vietnam. Collections were made inside the village, at the plot near the slash-and-burn fields in the forest and on the way to the forest. All collected mosquito species were subjected to enzyme-linked immunosorbent assay (ELISA) to detect Plasmodium in the head-thoracic portion of individual mosquitoes after morphological identification. Collection data were analysed by use of correspondence and multivariate analyses. Results The mosquito density in the study area was low with on average 3.7 anopheline bites per man-night and 17.4 culicine bites per man-night. Plasmodium-infected mosquitoes were only found in the forest and on the way to the forest. Malaria transmission in the forested malaria foci was spread over the entire night, from dusk to dawn, but was most intense in the early evening as nine of the 13 Plasmodium positive bites occurred before 21H. The annual entomological inoculation rate of Plasmodium falciparum was 2.2 infective bites per person-year to which Anopheles dirus s.s. and Anopheles minimus s.s. contributed. The Plasmodium vivax annual entomological inoculation rate was 2.5 infective bites per person-year with Anopheles sawadwongporni, Anopheles dirus s.s. and Anopheles pampanai as vectors. Conclusion The vector behaviour and spatio-temporal patterns of malaria transmission in Southeast Asia impose new challenges when changing objectives from control to elimination of malaria and make it necessary to focus not only on the known main vector species. Moreover, effective tools to prevent malaria transmission in the early evening and in the early morning, when the treated bed net cannot be used, need to be developed. PMID:21182774

  10. Malaria transmission and vector behaviour in a forested malaria focus in central Vietnam and the implications for vector control.

    PubMed

    Van Bortel, Wim; Trung, Ho Dinh; Hoi, Le Xuan; Van Ham, Nguyen; Van Chut, Nguyen; Luu, Nguyen Dinh; Roelants, Patricia; Denis, Leen; Speybroeck, Niko; D'Alessandro, Umberto; Coosemans, Marc

    2010-12-23

    In Vietnam, malaria is becoming progressively restricted to specific foci where human and vector characteristics alter the known malaria epidemiology, urging for alternative or adapted control strategies. Long-lasting insecticidal hammocks (LLIH) were designed and introduced in Ninh Thuan province, south-central Vietnam, to control malaria in the specific context of forest malaria. An entomological study in this specific forested environment was conducted to assess the behavioural patterns of forest and village vectors and to assess the spatio-temporal risk factors of malaria transmission in the province. Five entomological surveys were conducted in three villages in Ma Noi commune and in five villages in Phuoc Binh commune in Ninh Thuan Province, south-central Vietnam. Collections were made inside the village, at the plot near the slash-and-burn fields in the forest and on the way to the forest. All collected mosquito species were subjected to enzyme-linked immunosorbent assay (ELISA) to detect Plasmodium in the head-thoracic portion of individual mosquitoes after morphological identification. Collection data were analysed by use of correspondence and multivariate analyses. The mosquito density in the study area was low with on average 3.7 anopheline bites per man-night and 17.4 culicine bites per man-night. Plasmodium-infected mosquitoes were only found in the forest and on the way to the forest. Malaria transmission in the forested malaria foci was spread over the entire night, from dusk to dawn, but was most intense in the early evening as nine of the 13 Plasmodium positive bites occurred before 21H. The annual entomological inoculation rate of Plasmodium falciparum was 2.2 infective bites per person-year to which Anopheles dirus s.s. and Anopheles minimus s.s. contributed. The Plasmodium vivax annual entomological inoculation rate was 2.5 infective bites per person-year with Anopheles sawadwongporni, Anopheles dirus s.s. and Anopheles pampanai as vectors. The vector behaviour and spatio-temporal patterns of malaria transmission in Southeast Asia impose new challenges when changing objectives from control to elimination of malaria and make it necessary to focus not only on the known main vector species. Moreover, effective tools to prevent malaria transmission in the early evening and in the early morning, when the treated bed net cannot be used, need to be developed.

  11. MMPI-2 profiles of Gulf and Vietnam combat veterans with chronic posttraumatic stress disorder.

    PubMed

    Glenn, D Michael; Beckham, Jean C; Sampson, William S; Feldman, Michelle E; Hertzberg, Michael A; Moore, Scott D

    2002-04-01

    The current study examined service era differences in a sample of 172 Gulf and Vietnam outpatient veterans with combat-related posttraumatic stress disorder (PTSD). Participants completed the MMPI-2 and several additional self-report measures of symptom severity (PTSD, depression, anxiety, hostility, and health complaints). Results indicated that MMPI-2 profiles differed significantly according to service era with Vietnam veterans scoring higher on scales 2, 8, and 0 and lower on scale 9 than did Gulf veterans. Examination of group means derived from parametric analysis of MMPI-2 data suggested a mean two-point code type of 2-8/8-2 for Vietnam veterans and 1-8/8-1 for Gulf veterans. In contrast, when the data were examined using descriptive techniques based on frequency counts of individual MMPI-2 profiles, the most frequently occurring two-point codetype was 7-8/8-7 for Vietnam veterans, and 6-8/8-6 for Gulf veterans. In addition, Gulf veterans reported a greater number of total health complaints than Vietnam veterans, whereas Vietnam veterans reported a greater number of physician-diagnosed physical conditions. Potential advantages of incorporating descriptive approaches versus parametric methods when examining profile data are also presented. Copyright 2002 Wiley Periodicals, Inc.

  12. A Grammar of Bih

    ERIC Educational Resources Information Center

    Nguyen, Tam Thi Minh

    2013-01-01

    Bih is a Chamic (Austronesian) language spoken by approximately 500 people in the Southern highlands of Vietnam. This dissertation is the first descriptive grammar of the language, based on extensive fieldwork and community-based language documentation in Vietnam and written from a functional/typological perspective. The analysis in this work is…

  13. Determinants of marginalization and inequitable maternal health care in North–Central Vietnam: a framework analysis

    PubMed Central

    Binder-Finnema, Pauline; Lien, Pham T. L.; Hoa, Dinh T. P.; Målqvist, Mats

    2015-01-01

    Background Vietnam has achieved great improvements in maternal healthcare outcomes, but there is evidence of increasing inequity. Disadvantaged groups, predominantly ethnic minorities and people living in remote mountainous areas, do not gain access to maternal health improvements despite targeted efforts from policymakers. Objective This study identifies underlying structural barriers to equitable maternal health care in Nghe An province, Vietnam. Experiences of social inequity and limited access among child-bearing ethnic and minority women are explored in relation to barriers of care provision experienced by maternal health professionals to gain deeper understanding on health outcomes. Design In 2012, 11 focus group discussions with women and medical care professionals at local community health centers and district hospitals were conducted using a hermeneutic–dialectic method and analyzed for interpretation using framework analysis. Results The social determinants ‘limited negotiation power’ and ‘limited autonomy’ orchestrate cyclical effects of shared marginalization for both women and care professionals within the provincial health system’s infrastructure. Under-staffed and poorly equipped community health facilities refer women and create overload at receiving health centers. Limited resources appear diverted away from local community centers as compensation to the district for overloaded facilities. Poor reputation for low care quality exists, and professionals are held in low repute for causing overload and resulting adverse outcomes. Country-wide reforms force women to bear responsibility for limited treatment adherence and health insight, but overlook providers’ limited professional development. Ethnic minority women are hindered by relatives from accessing care choices and costs, despite having advanced insight about government reforms to alleviate poverty. Communication challenges are worsened by non-existent interpretation systems. Conclusions For maternal health policy outcomes to become effective, it is important to understand that limited negotiation power and limited autonomy simultaneously confront childbearing women and health professionals. These two determinants underlie the inequitable economic, social, and political forces in Vietnam’s disadvantaged communities, and result in marginalized status shared by both in the poorest sectors. PMID:26160770

  14. Bodily Pain, Combat, and the Politics of Memoirs: Between the American Civil War and the War in Vietnam.

    PubMed

    Bourke, Joanna

    2013-05-01

    This article analyses the languages of wartime pain as seen in British and American memoirs from the American Civil War to the present. How did the rhetoric of wounding in these war memoirs change over time? One of the central shifts lies in the way that wounded men presented themselves as stoic in spite of severe wounding. From 1939, and in an even more dramatic fashion by the war in Vietnam, physical suffering remained a test of manliness, but the tone was defiant and aggressive rather than stoic or resigned. The article also looks at the role of individual publishers and the introduction of psychological dimensions of wounding in latter memoirs.

  15. Bodily Pain, Combat, and the Politics of Memoirs: Between the American Civil War and the War in Vietnam

    PubMed Central

    Bourke, Joanna

    2014-01-01

    This article analyses the languages of wartime pain as seen in British and American memoirs from the American Civil War to the present. How did the rhetoric of wounding in these war memoirs change over time? One of the central shifts lies in the way that wounded men presented themselves as stoic in spite of severe wounding. From 1939, and in an even more dramatic fashion by the war in Vietnam, physical suffering remained a test of manliness, but the tone was defiant and aggressive rather than stoic or resigned. The article also looks at the role of individual publishers and the introduction of psychological dimensions of wounding in latter memoirs. PMID:24489402

  16. Time perspectives and convenience food consumption among teenagers in Vietnam: The dual role of hedonic and healthy eating values.

    PubMed

    Olsen, Svein Ottar; Tuu, Ho Huy

    2017-09-01

    This study uses the subscales of Consideration of Future Consequences (CFC) to explore the effects of future (CFC-future) and immediate (CFC-immediate) on convenience food consumption among teenagers in Vietnam. Furthermore, we investigate the mediating and dual role of hedonic and healthy eating values in the relationships between CFCs and convenience food consumption. Survey data from 451 teenagers in Central Vietnam and structural equation modelling were used to test the relationships in a proposed theoretical model. The results indicate that while CFC-immediate and hedonic eating value has a positive direct effect, CFC-future and healthy eating value has a negative direct effect on convenience food consumption. The findings also reveal that both CFC-immediate and CFC-future have positive effects on hedonic and healthy eating values. However, this study argues and tests the relative importance of the direct (asymmetric) effects of time perspectives on eating values, and finds that while CFC-future dominate in explaining healthy eating values, CFC-immediate dominate in explaining hedonic eating values. Copyright © 2017 Elsevier Ltd. All rights reserved.

  17. Environmental regulatory failure and metal contamination at the Giap Lai pyrite mine, Northern Vietnam.

    PubMed

    Håkan Tarras-Wahlberg, N; Nguyen, Lan T

    2008-03-01

    The causes for the failure in enforcement of environmental regulations at the Giap Lai pyrite mine in northern Vietnam are considered and the environmental impacts that are associated with this mine are evaluated. It is shown that sulphide-rich tailings and waste rock in the mining area represent significant sources of acid rock drainage (ARD). The ARD is causing elevated metal levels in downstream water bodies, which in turn, represent a threat to both human health and to aquatic ecosystems. Metal concentrations in impacted surface waters have increased after mine closure, suggesting that impacts are becoming progressively more serious. No post-closure, remediation measures have been applied at the mine, in spite of the existence of environmental legislation and both central and regional institutions charged with environmental supervision and control. The research presented here provides further emphasis for the recommendation that, while government institutions may need to be strengthened, and environmental regulations need to be in place, true on the ground improvement in environmental quality in Vietnam and in many other developing countries require an increased focus on promoting public awareness of industrial environmental issues.

  18. Discovery of Paragonimus westermani in Vietnam and its molecular phylogenetic status in P. westermani complex.

    PubMed

    Doanh, Pham Ngoc; Shinohara, Akio; Horii, Yoichiro; Habe, Shigehisa; Nawa, Yukifumi

    2009-04-01

    Paragonimus westermani is the most well-known species among the genus Paragonimus. It is widely distributed in Asia with considerable genetic diversity to form P. westermani species complex. While P. westermani distributed in Japan, Korea, China, and Taiwan are genetically homogeneous to form the East Asia group, those found in other geographic areas are heterogeneous and would be divided into several groups. Recent discoveries of P. westermani in India and Sri Lanka highlighted new insights on molecular phylogenetic relationship of geographic isolates of this species complex. Since Vietnam is located at the east end of Southeast Asia, the intermediate position between South and East Asia, it is of interest to see whether P. westermani is distributed in this country. Here, we report that P. westermani metacercariae were found in mountainous crabs, Potamiscus sp., collected in Quangtri province in the central Vietnam. Adult worms were successfully obtained by experimental infection in cats. Molecular phylogenetic analyses revealed that P. westermani of Vietnamese isolates have high similarities with those of East Asia group.

  19. Molecular evolution of type 2 porcine reproductive and respiratory syndrome viruses circulating in Vietnam from 2007 to 2015.

    PubMed

    Do, Hai Quynh; Trinh, Dinh Thau; Nguyen, Thi Lan; Vu, Thi Thu Hang; Than, Duc Duong; Van Lo, Thi; Yeom, Minjoo; Song, Daesub; Choe, SeEun; An, Dong-Jun; Le, Van Phan

    2016-11-17

    Porcine respiratory and reproductive syndrome (PRRS) virus is one of the most economically significant pathogens in the Vietnamese swine industry. ORF5, which participates in many functional processes, including virion assembly, entry of the virus into the host cell, and viral adaptation to the host immune response, has been widely used in molecular evolution and phylogeny studies. Knowing of molecular evolution of PRRSV fields strains might contribute to PRRS control in Vietnam. The results showed that phylogenetic analysis indicated that all strains belonged to sub-lineages 8.7 and 5.1. The nucleotide and amino acid identities between strains were 84.5-100% and 82-100%, respectively. Furthermore, the results revealed differences in nucleotide and amino acid identities between the 2 sub-lineage groups. N-glycosylation prediction identified 7 potential N-glycosylation sites and 11 glycotypes. Analyses of the GP5 sequences, revealed 7 sites under positive selective pressure and 25 under negative selective pressure. Phylogenetic analysis based on ORF5 sequence indicated the diversity of PRRSV in Vietnam. Furthermore, the variance of N-glycosylation sites and position under selective pressure were demonstrated. This study expands existing knowledge on the genetic diversity and evolution of PRRSV in Vietnam and assists the effective strategies for PRRS vaccine development in Vietnam.

  20. Healthcare infrastructure capacity to respond to severe acute respiratory infection (SARI) and sepsis in Vietnam: A low-middle income country.

    PubMed

    Dat, Vu Quoc; Long, Nguyen Thanh; Giang, Kim Bao; Diep, Pham Bich; Giang, Ta Hoang; Diaz, Janet V

    2017-12-01

    This study investigated the availability of relevant structural and human resources needed for the clinical management of patients with severe acute respiratory infections and sepsis in critical care units in Vietnam. A questionnaire survey was conducted by purposive sampling of 128 hospitals (36% of total hospitals in surveyed provinces), including 25 provincial and 103 district level hospitals, from 20 provinces in Vietnam. Data on availability of hospital characteristics, structural resources and health care workers was then analyzed. Most hospitals (>80%) reported having 60% of the relevant structural resources. Significant differences were observed between provincial hospitals when compared to district hospitals in regards to availability of central oxygen piping system (78.3% vs 38.7%, p=0.001) mechanical ventilation (100.0% vs 73.6%, p=0.003), mobile x-rays (80.0% vs 29.8%, p<0.001), carbapenem antibiotic (73.9% vs 17.4%, p<0.001) and norepinephrine (95.8% vs 56.3%, p<0.001). There was a limited availability of arterial blood gas analyzers (13.7%), oseltamivir (42.2%) and N95 respirators (54.6%) across all hospitals surveyed. The limited availability of relevant structural and human resources in critical care units around Vietnam makes the implementation of quality critical care to patients with SARI and sepsis, according international guidelines, not universally possible. Copyright © 2017 Elsevier Inc. All rights reserved.

  1. A Systems Analysis View of the Vietnam War: 1965-1972. Volume 11. Economics: War Costs and Inflation

    DTIC Science & Technology

    1975-02-01

    Conflict On Great Society Programs Sep 67 4 The Cost Of Bombing North Vietnam Dec 67 8 The Bombing - Its Economic Costs Avnd Benefits To North Vietnam...current DOD program and the one for the peacetime force structure after the war. A third cost concept is reflected in the figures the Defense Department...papers will cover FY 70-71, as soon as those program budgets are ready, and will include AID, GVN, and third country costs . Total Cost . The total cost

  2. Prevalence and distribution of avian influenza a(H5N1) virus clade variants in live bird markets of Vietnam, 2011-2013.

    PubMed

    Nguyen, Diep T; Bryant, Juliet E; Davis, C Todd; Nguyen, Long V; Pham, Long T; Loth, Leo; Inui, Ken; Nguyen, Tung; Jang, Yunho; To, Thanh L; Nguyen, Tho D; Hoang, Diep T; Do, Hoa T; Nguyen, Trang T; Newman, Scott; Jennifer Siembieda; Pham, Dong V

    2014-12-01

    Active surveillance for avian influenza (Al) viruses in poultry sold at live bird markets (LBMs) was conducted in 44 of 63 provinces throughout Vietnam over two periods from September 2011 to February 2012 and October 2012 to June 2013. The study objectives were to assess the prevalence of avian influenza type A, H5, and H5N1 subtype viruses and characterize the geographical and temporal distribution of H5N1 virus genetic variants across the country. Monthly sampling was conducted in 394 LBMs located in 372 communes. A total of 9790 oropharyngeal swabs from poultry were screened for influenza A virus by real-time reverse-transcriptase PCR Virus isolation was attempted on all positive samples in embryonated chicken eggs, and the HA1 region of each H5 virus isolate was sequenced. Market prevalence of H5 subtype virus was 32.2% (127/394) over the cumulative 15 mo of surveillance. Phylogenetic analyses indicated that clade 1.1 viruses persisted in the south, whereas three genetically distinct subgroups of dade 2.3.2.1 were found simultaneously in northern, central, and southern Vietnam. Clade 2.3.2.1c viruses first appeared in July 2012 and spread rapidly to the center and south of Vietnam in late 2012, where they were predominant among clade 2.3.2.1 viruses and were detected in both active LBM surveillance and poultry outbreaks. Given the overlapping geographic distribution of dade variants and the antigenic divergence previously described for these dades, current AI poultry vaccines used in Vietnam may require bivalent formulations containing representatives of both dade 1.1 and dade 2.3.2.1 viruses.

  3. Epidemiology of bovine hemoprotozoa parasites in cattle and water buffalo in Vietnam.

    PubMed

    Weerasooriya, Gayani; Sivakumar, Thillaiampalam; Lan, Dinh Thi Bich; Long, Phung Thang; Takemae, Hitoshi; Igarashi, Ikuo; Inoue, Noboru; Yokoyama, Naoaki

    2016-09-01

    A PCR-based survey of hemoprotozoa parasites detected Babesia bigemina, Theileria orientalis and Trypanosoma theileri among cattle and water buffalo in Vietnam, and a new Babesia sp. closely related to Babesia ovata was detected in cattle only. In addition, Theileria annulata and Trypanosoma evansi were not detected in both cattle and water buffalo. Phylogenetic analysis detected T. orientalis MPSP genotypes 3, 5, 7 and N3 in cattle and 5, 7, N1 and N2 in water buffalo. Additionally, water buffalo-derived T. theileri CATL sequences clustered together with a previously reported cattle-derived sequence from Vietnam. This is the first report of a new Babesia sp. in cattle, and T. orientalis MPSP genotype 7 and T. theileri in water buffalo in Vietnam.

  4. Epidemiology of bovine hemoprotozoa parasites in cattle and water buffalo in Vietnam

    PubMed Central

    WEERASOORIYA, Gayani; SIVAKUMAR, Thillaiampalam; LAN, Dinh Thi Bich; LONG, Phung Thang; TAKEMAE, Hitoshi; IGARASHI, Ikuo; INOUE, Noboru; YOKOYAMA, Naoaki

    2016-01-01

    A PCR-based survey of hemoprotozoa parasites detected Babesia bigemina, Theileria orientalis and Trypanosoma theileri among cattle and water buffalo in Vietnam, and a new Babesia sp. closely related to Babesia ovata was detected in cattle only. In addition, Theileria annulata and Trypanosoma evansi were not detected in both cattle and water buffalo. Phylogenetic analysis detected T. orientalis MPSP genotypes 3, 5, 7 and N3 in cattle and 5, 7, N1 and N2 in water buffalo. Additionally, water buffalo-derived T. theileri CATL sequences clustered together with a previously reported cattle-derived sequence from Vietnam. This is the first report of a new Babesia sp. in cattle, and T. orientalis MPSP genotype 7 and T. theileri in water buffalo in Vietnam. PMID:27149894

  5. El Nino and ground/underground water decreasing effects on coffee cultivation in DakNong Province, Vietnam by using GIS.

    NASA Astrophysics Data System (ADS)

    Duong, Anh Quan; Quy Bui, Ngoc; Luu, The Anh; Kainz, Wolfgang

    2014-05-01

    El Nino is one of most common climatic events which are widely spread over the world. In case of Vietnam, the El Nino or ENSO event has various effects on agricultural cultivation over whole country; in the Central Highlands area, the coffee cultivation also has been affected heavily. The coffee is one of most important products of this area. Our study area, the Dak Nong province located in the Central Highlands, the mountainous and highlands in central of Vietnam. The coffee production contributes roughly 40% of total GDP of the province. This province climate is influenced by tropical monsoon and high altitude terrain. The area has two seasons in which dry season from November to end of March and the wet season cover the rest. There is 80-90% of precipitation concentrated in wet season. In El Nino years, the dry season is longer and drier than normal which affects the agricultural cultivation especially coffee. The effects of El Nino phenomenon on coffee cultivation need to clarify in order to help farmers and decision makers making their solutions. The ground/underground water has been decreased by over watering of coffee growers as well as deforestation making water shortage in dry season. The over watering of coffee cultivation wasted more than 80% water resources especially underground water use. In years of 1997-1998, coffee productivity decreased 30%; in years of 2003, the coffee productivity was downed by 25%; both examples show the relation between the combination of ENSO and decreasing of Ground/underground water and the coffee production in Dak Nong province. This is a necessary research to evaluate the effects of the combination. This paper using GIS tools to estimate the effects of El Nino phenomenon combined with ground/underground water and the coffee cultivation in Dak Nong province

  6. Separation of land-use change induced signals from noise by means of evaluating perturbed RCM ensembles: Assessing the potential impacts of urbanization and deforestation in Central Vietnam

    NASA Astrophysics Data System (ADS)

    Laux, Patrick; Nguyen, Phuong N. B.; Cullmann, Johannes; Kunstmann, Harald

    2016-04-01

    Regional climate models (RCMs) comprise both terrestrial and atmospheric compartments and thereby allowing to study land atmosphere feedbacks, and in particular the land-use and climate change impacts. In this study, a methodological framework is developed to separate the land use change induced signals in RCM simulations from noise caused by perturbed initial boundary conditions. The framework is applied for two different case studies in SE Asia, i.e. an urbanization and a deforestation scenario, which are implemented into the Weather Research and Forecasting (WRF) model. The urbanization scenario is produced for Da Nang, one of the fastest growing cities in Central Vietnam, by converting the land-use in a 20 km, 14 km, and 9 km radius around the Da Nang meteorological station systematically from cropland to urban. Likewise, three deforestation scenarios are derived for Nong Son (Central Vietnam). Based on WRF ensemble simulations with perturbed initial conditions for 2010, the signal to-noise ratio (SNR) is calculated to identify areas with pronounced signals induced by LULCC. While clear and significant signals are found for air temperature, latent and sensible heat flux in the urbanization scenario (SNR values up to 24), the signals are not pronounced for deforestation (SNR values < 1). Albeit statistically significant signals are found for precipitation, low SNR values hinder scientifically sound inferences for climate change adaptation options. It is demonstrated that ensemble simulations with more than at least 5 ensemble members are required to derive robust LULCC adaptation strategies, particularly if precipitation is considered. This is rarely done in practice, thus potentially leading to erroneous estimates of the LULCC induced signals of water and energy fluxes, which are propagated through the regional climate - hydrological model modeling chains, and finally leading to unfavorable decision support.

  7. Quantifying human impacts on hydrological drought using a combined modelling approach in a tropical river basin in central Vietnam

    NASA Astrophysics Data System (ADS)

    Firoz, A. B. M.; Nauditt, Alexandra; Fink, Manfred; Ribbe, Lars

    2018-01-01

    Hydrological droughts are one of the most damaging disasters in terms of economic loss in central Vietnam and other regions of South-east Asia, severely affecting agricultural production and drinking water supply. Their increasing frequency and severity can be attributed to extended dry spells and increasing water abstractions for e.g. irrigation and hydropower development to meet the demand of dynamic socioeconomic development. Based on hydro-climatic data for the period from 1980 to 2013 and reservoir operation data, the impacts of recent hydropower development and other alterations of the hydrological network on downstream streamflow and drought risk were assessed for a mesoscale basin of steep topography in central Vietnam, the Vu Gia Thu Bon (VGTB) River basin. The Just Another Modelling System (JAMS)/J2000 was calibrated for the VGTB River basin to simulate reservoir inflow and the naturalized discharge time series for the downstream gauging stations. The HEC-ResSim reservoir operation model simulated reservoir outflow from eight major hydropower stations as well as the reconstructed streamflow for the main river branches Vu Gia and Thu Bon. Drought duration, severity, and frequency were analysed for different timescales for the naturalized and reconstructed streamflow by applying the daily varying threshold method. Efficiency statistics for both models show good results. A strong impact of reservoir operation on downstream discharge at the daily, monthly, seasonal, and annual scales was detected for four discharge stations relevant for downstream water allocation. We found a stronger hydrological drought risk for the Vu Gia river supplying water to the city of Da Nang and large irrigation systems especially in the dry season. We conclude that the calibrated model set-up provides a valuable tool to quantify the different origins of drought to support cross-sectorial water management and planning in a suitable way to be transferred to similar river basins.

  8. The evolution of HIV policy in Vietnam: from punitive control measures to a more rights-based approach

    PubMed Central

    Nguyen Ha, Pham; Pharris, Anastasia; Huong, Nguyen Thanh; Chuc, Nguyen Thi Kim; Brugha, Ruairi; Thorson, Anna

    2010-01-01

    Aim Policymaking in Vietnam has traditionally been the preserve of the political elite, not open to the scrutiny of those outside the Communist Party. This paper aims to analyse Vietnam's HIV policy development in order to describe and understand the policy content, policy-making processes, actors and obstacles to policy implementation. Methods Nine policy documents on HIV were analysed and 17 key informant interviews were conducted in Hanoi and Quang Ninh Province, based on a predesigned interview guide. Framework analysis, a type of qualitative content analysis, was applied for data analysis. Results Our main finding was that during the last two decades, developments in HIV policy in Vietnam were driven in a top-down way by the state organs, with support and resources coming from international agencies. Four major themes were identified: HIV policy content, the policy-making processes, the actors involved and human resources for policy implementation. Vietnam's HIV policy has evolved from one focused on punitive control measures to a more rights-based approach, encompassing harm reduction and payment of health insurance for medical costs of patients with HIV-related illness. Low salaries and staff reluctance to work with patients, many of whom are drug users and female sex workers, were described as the main barriers to low health staff motivation. Conclusion Health policy analysis approaches can be applied in a traditional one party state and can demonstrate how similar policy changes take place, as those found in pluralistic societies, but through more top-down and somewhat hidden processes. Enhanced participation of other actors, like civil society in the policy process, is likely to contribute to policy formulation and implementation that meets the diverse needs and concerns of its population. PMID:20824159

  9. The evolution of HIV policy in Vietnam: from punitive control measures to a more rights-based approach.

    PubMed

    Nguyen Ha, Pham; Pharris, Anastasia; Huong, Nguyen Thanh; Chuc, Nguyen Thi Kim; Brugha, Ruairi; Thorson, Anna

    2010-08-28

    Policymaking in Vietnam has traditionally been the preserve of the political elite, not open to the scrutiny of those outside the Communist Party. This paper aims to analyse Vietnam's HIV policy development in order to describe and understand the policy content, policy-making processes, actors and obstacles to policy implementation. Nine policy documents on HIV were analysed and 17 key informant interviews were conducted in Hanoi and Quang Ninh Province, based on a predesigned interview guide. Framework analysis, a type of qualitative content analysis, was applied for data analysis. Our main finding was that during the last two decades, developments in HIV policy in Vietnam were driven in a top-down way by the state organs, with support and resources coming from international agencies. Four major themes were identified: HIV policy content, the policy-making processes, the actors involved and human resources for policy implementation. Vietnam's HIV policy has evolved from one focused on punitive control measures to a more rights-based approach, encompassing harm reduction and payment of health insurance for medical costs of patients with HIV-related illness. Low salaries and staff reluctance to work with patients, many of whom are drug users and female sex workers, were described as the main barriers to low health staff motivation. Health policy analysis approaches can be applied in a traditional one party state and can demonstrate how similar policy changes take place, as those found in pluralistic societies, but through more top-down and somewhat hidden processes. Enhanced participation of other actors, like civil society in the policy process, is likely to contribute to policy formulation and implementation that meets the diverse needs and concerns of its population.

  10. Adult Survivorship of the Dengue Mosquito Aedes aegypti Varies Seasonally in Central Vietnam

    PubMed Central

    Hugo, Leon E.; Jeffery, Jason A. L.; Trewin, Brendan J.; Wockner, Leesa F.; Thi Yen, Nguyen; Le, Nguyen Hoang; Nghia, Le Trung; Hine, Emma; Ryan, Peter A.; Kay, Brian H.

    2014-01-01

    The survival characteristics of the mosquito Aedes aegypti affect transmission rates of dengue because transmission requires infected mosquitoes to survive long enough for the virus to infect the salivary glands. Mosquito survival is assumed to be high in tropical, dengue endemic, countries like Vietnam. However, the survival rates of wild populations of mosquitoes are seldom measured due the difficulty of predicting mosquito age. Hon Mieu Island in central Vietnam is the site of a pilot release of Ae. aegypti infected with a strain of Wolbachia pipientis bacteria (wMelPop) that induces virus interference and mosquito life-shortening. We used the most accurate mosquito age grading approach, transcriptional profiling, to establish the survival patterns of the mosquito population from the population age structure. Furthermore, estimations were validated on mosquitoes released into a large semi-field environment consisting of an enclosed house, garden and yard to incorporate natural environmental variability. Mosquito survival was highest during the dry/cool (January-April) and dry/hot (May-August) seasons, when 92 and 64% of Hon Mieu mosquitoes had survived to an age that they were able to transmit dengue (12 d), respectively. This was reduced to 29% during the wet/cool season from September to December. The presence of Ae. aegypti older than 12 d during each season is likely to facilitate the observed continuity of dengue transmission in the region. We provide season specific Ae. aegypti survival models for improved dengue epidemiology and evaluation of mosquito control strategies that aim to reduce mosquito survival to break the dengue transmission cycle. PMID:24551251

  11. Community-Based Control of Aedes aegypti By Using Mesocyclops in Southern Vietnam

    PubMed Central

    Nam, Vu Sinh; Yen, Nguyen Thi; Duc, Hoang Minh; Tu, Tran Cong; Thang, Vu Trong; Le, Nguyen Hoang; San, Le Hoang; Loan, Luu Le; Huong, Vu Thi Que; Khanh, Ly Huynh Kim; Trang, Huynh Thi Thuy; Lam, Leonie Z. Y.; Kutcher, Simon C.; Aaskov, John G.; Jeffery, Jason A. L.; Ryan, Peter A.; Kay, Brian H.

    2012-01-01

    We previously reported a new community-based mosquito control strategy that resulted in elimination of Aedes aegypti (Linn.) in 40 of 46 communes in northern and central Vietnam, and with annual recurrent total costs (direct and indirect) of only $0.28–$0.89 international dollars per person. This control strategy was extended to four provinces in southern Vietnam in Long An and Hau Giang (2004–2007) and to Long An, Ben Tre, and Vinh Long (2005–2010). In a total of 14 communes with 124,743 residents, the mean ± SD of adult female Ae. aegypti was reduced from 0.93 ± 0.62 to 0.06 ± 0.09, and the reduction of immature Ae. aegypti averaged 98.8%. By the final survey, no adults could be collected in 6 of 14 communes, and one commune, Binh Thanh, also had no immature forms. Although the community-based programs also involved community education and clean-up campaigns, the prevalence of Mesocyclops in large water storage containers > 50 liters increased from 12.77 ± 8.39 to 75.69 ± 9.17% over periods of 15–45 months. At the conclusion of the study, no confirmed dengue cases were detected in four of the five communes for which diagnostic serologic analysis was performed. The rate of progress was faster in communes that were added in stages to the program but the reason for this finding was unclear. At the completion of the formal project, sustainability funds were set up to provide each commune with the financial means to ensure that community-based dengue control activities continued. PMID:22556087

  12. Analysis of Child-related Road Traffic Accidents in Vietnam

    NASA Astrophysics Data System (ADS)

    Vu, Anh Tuan; Nguyen, Dinh Vinh Man

    2018-04-01

    In recent years, the number of road traffic accidents, fatalities and injuries have been decreasing, but the figures of children road traffic accidents have been increasing in Ho Chi Minh City of Vietnam. This fact strongly calls for implementing effective solutions to improve traffic safety for children by the local government. This paper presents the trends, patterns and causes of road traffic accidents involving children based on the analysis of road traffic accident data over the period 2010-2015 and the video-based observations of road traffic law violations at 15 typical school gates and 10 typical roads. The results could be useful for the city government to formulate solutions to effectively improve traffic safety for children in Ho Chi Minh City and other cities in Vietnam.

  13. U. S. Military Documentary Films: A Chronological Analysis.

    ERIC Educational Resources Information Center

    Avery, Robert K.; Larson, Timothy L.

    After presenting a chronological account of United States military documentary films from World War I through the Vietnam War, this paper reports on a study that compared the effectiveness of films prepared during World War II, the Korean War, and the Vietnam War. The first section, the chronological account, touches on such subjects as the…

  14. Etiology of Posttraumatic Stress Disorder in Vietnam Veterans: Analysis of Premilitary, Military, and Combat Exposure Influences.

    ERIC Educational Resources Information Center

    Foy, David W.; And Others

    1984-01-01

    Examined the influence of premilitary adjustment, military adjustment, and combat experience on the development of posttraumatic stress disorder in 43 Vietnam veterans. Results showed combat exposure was the most significant predictor, followed by military adjustment. The Minnesota Multiphasic Personality Inventory appeared to offer promise for…

  15. Ethnicity and Education in China and Vietnam: Discursive Formations of Inequality

    ERIC Educational Resources Information Center

    DeJaeghere, Joan; Wu, Xinyi; Vu, Lisa

    2015-01-01

    This article aims to understand how ethnicity is discursively framed in national policies in China and Vietnam and argues that policy discourses affect how the "problem" of ethnicity and educational inequalities is framed and how these inequalities can be addressed. The analysis shows how both Marxist and market-economy governing…

  16. Work-Integrated Learning Process in Tourism Training Programs in Vietnam: Voices of Education and Industry

    ERIC Educational Resources Information Center

    Khuong, Cam Thi Hong

    2016-01-01

    This paper addresses the work-integrated learning (WIL) initiative embedded in selected tourism training programs in Vietnam. The research was grounded on the framework of stakeholder ethos. Drawing on tourism training curriculum analysis and interviews with lecturers, institutional leaders, industry managers and internship supervisors, this study…

  17. American Newspaper Editorials on the Vietnam War: An Experimental Approach to Editorial Content Analysis.

    ERIC Educational Resources Information Center

    Elias, Stephen N.

    The editorials about four Vietnam War news events that appeared in five newspapers were examined for content, tone, page placement, and length to discover what trends in editorial coverage occurred. The 131 editorials that were examined appeared in the "New York Times," the "Los Angeles Times," the "Wall Street…

  18. Making Contact: The NAMES Project in Comparison to the Vietnam Memorial.

    ERIC Educational Resources Information Center

    Jensen, Marvin D.

    Several principles of gestalt therapy are applied in an analysis of the similarities between the Vietnam Veterans Memorial and The NAMES Project Quilt. The NAMES Project Quilt memorializes people who have died of Acquired Immune Deficiency Syndrome (AIDS). The creators of the two memorials engaged in the initial searches for "whole"…

  19. Use of modern contraceptives among married women in Vietnam: a multilevel analysis using the Multiple Indicator Cluster Survey (2011) and the Vietnam Population and Housing Census (2009).

    PubMed

    Vu, Lan Thi Hoang; Oh, Juhwan; Bui, Quyen Thi-Tu; Le, Anh Thi-Kim

    2016-01-01

    The prevalence of modern contraceptive use is an important indicator that reflects accessibility to reproductive health services. Satisfying unmet needs for family planning alone could reduce the number of maternal deaths by almost a third. This study uses multiple data sources to examine multilevel factors associated with the use of modern contraceptives among married women in Vietnam aged 15-49 years. Data from different national surveys (Vietnam Population and Housing Census, Vietnam Living Standard Survey, and Multiple Indicator Cluster Survey) were linked to create a dataset including individual and contextual (provincial) variables (N=8,341). Multilevel modeling was undertaken to examine the impact of both individual and provincial characteristics on modern contraceptive use. Odds ratios (ORs) and 95% confidence intervals (CIs) are reported. Individual factors significantly associated with the use of modern contraceptives were age 30-34 years (reference 15-19 years) (OR=1.63); high socioeconomic status (SES) (OR=0.8); having two living children (OR=2.4); and having a son (OR=1.4). The provincial poverty rate mediated the association between the individual's SES and the likelihood of using modern contraceptives. The proportion of women in Vietnam using modern contraceptive methods has remained relatively high in recent years with significant variation across Vietnam's 63 provinces. Women of lower SES are more likely to use modern contraceptive methods, especially in the poorer provinces. Achieving access to universal reproductive health is one of the Millennium Development Goals. Vietnam must continue to make progress in this area.

  20. Alcohol and Drinking Cultures in Vietnam: A Review

    PubMed Central

    Lincoln, Martha

    2015-01-01

    Background Epidemiological data suggest that national levels of alcohol consumption have increased rapidly in contemporary Vietnam; concomitantly, social and public health harms associated with alcohol use are on the rise. Methods Over the last decade, a research literature on alcohol use in Vietnam has begun to develop. Results A consideration of this literature indicates lines of analysis to be extended and gaps to be filled. Conclusion This synopsis provides an overview of the major trends that studies have addressed, evaluates the state of research to date, and suggests avenues for further research on alcohol use in this newly middle-income nation. PMID:26802499

  1. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Slunge, Daniel, E-mail: daniel.slunge@economics.gu.se; Tran, Trang Thi Huyen, E-mail: trang2k@yahoo.com

    Building on new institutional theory, this paper develops an analytical framework for analyzing constraints to the institutionalization of strategic environmental assessment (SEA) at four different institutional levels. The framework is tested in an empirical analysis of the environmental assessment system in Vietnam, which is a frontrunner among developing countries regarding the introduction and use of SEA. Building on interviews with Vietnamese and international experts, as well as an extensive literature review, we identify institutional constraints which challenge the effective use of SEA in Vietnam. We conclude that commonly identified constraints, such as inadequate training, technical guidelines, baseline data and financialmore » resources, are strongly linked to constraints at higher institutional levels, such as incentives to not share information between ministries and severe restrictions on access to information and public participation. Without a thorough understanding of these institutional constraints, there is a risk that attempts to improve the use of SEA are misdirected. Thus, a careful institutional analysis should guide efforts to introduce and improve the use of SEA in Vietnam and other developing countries. The analytical framework for analyzing constraints to institutionalization of SEA presented in this paper represents a systematic effort in this direction. - Highlights: • A framework for analyzing constraints to institutionalizing SEA is developed • Empirical analysis of the strategic environmental assessment system in Vietnam • Constraints in the action arena linked to deeper institutional constraints • Institutional analysis needed prior to introducing SEA in developing countries.« less

  2. The Economic Lives of People with Disabilities in Vietnam

    PubMed Central

    Palmer, Michael; Groce, Nora; Mont, Daniel; Nguyen, Oanh Hong; Mitra, Sophie

    2015-01-01

    Through a series of focus group discussions conducted in northern and central Vietnam, this study gives voice to the lived economic experience of families with disabilities and how they manage the economic challenges associated with disability. The dynamic of low and unstable income combined with on-going health care and other disability-related costs gives rise to a range of coping mechanisms (borrowing, reducing and foregoing expenditures, drawing upon savings and substituting labour) that helps to maintain living standards in the short-run yet threatens the longer-term welfare of both the individual with disability and their household. Current social protection programs were reported as not accessible to all and while addressing some immediate economic costs of disability, do not successfully meet current needs nor accommodate wider barriers to availing benefits. PMID:26197034

  3. Cervical cancer treatment costs and cost-effectiveness analysis of human papillomavirus vaccination in Vietnam: a PRIME modeling study.

    PubMed

    Van Minh, Hoang; My, Nguyen Thi Tuyet; Jit, Mark

    2017-05-15

    Cervical cancer is currently the leading cause of cancer mortality among women in South Vietnam and the second leading cause of cancer mortality in North Vietnam. Human papillomavirus (HPV) vaccination has the potential to substantially decrease this burden. The World Health Organization (WHO) recommends that a cost-effectiveness analysis of HPV vaccination is conducted before nationwide introduction. The Papillomavirus Rapid Interface for Modeling and Economics (PRIME) model was used to evaluate the cost-effectiveness of HPV vaccine introduction. A costing study based on expert panel discussions, interviews and hospital case note reviews was conducted to explore the cost of cervical cancer care. The cost of cervical cancer treatment ranged from US$368 - 11400 depending on the type of hospital and treatment involved. Under Gavi-negotiated prices of US$4.55, HPV vaccination is likely to be very cost-effective with an incremental cost per disability-adjusted life year (DALY) averted in the range US$780 - 1120. However, under list prices for Cervarix and Gardasil in Vietnam, the incremental cost per DALY averted for HPV vaccination can exceed US$8000. HPV vaccine introduction appears to be economically attractive only if Vietnam is able to procure the vaccine at Gavi prices. This highlights the importance of initiating a nationwide vaccination programme while such prices are still available.

  4. Impact of an international workplace learning placement on personal and professional development.

    PubMed

    Davies, Kerryn; Curtin, Michael; Robson, Kristy

    2017-04-01

    Workplace learning (WPL) placements are a mandatory part of occupational therapy courses. There is some evidence that suggests WPL placements in international settings are beneficial for students' learning, and personal and professional development. The aim of this study was to explore the impact an international WPL placement in Vietnam had on the perceived personal and professional development of a group of Australian occupational therapy graduates. Interpretative phenomenological analysis was used to explore the perceptions of how participation in the Charles Sturt University School of Community Health's Vietnam placement influenced the personal and professional development of occupational therapy graduates. Individual semi-structured interviews were conducted with nine graduates who participated in the Vietnam placement when they were final year occupational therapy students. Interviews were audio-recorded, transcribed verbatim and individually analysed to identify key themes. Two major themes emerged from the analysis: becoming resourceful, resilient and confident, and becoming respectful of difference. The participants indicated that participation in the Vietnam placement had a positive impact on their personal and professional development. Participants indicated that the Vietnam placement enabled them to develop their resourcefulness, resilience, reasoning skills, cultural competence, confidence and independence, beyond what they felt would have achieved on a domestic placement. For these reason these participants found the placement a beneficial and worthwhile experience. © 2016 Occupational Therapy Australia.

  5. The Effect of War on Children.

    ERIC Educational Resources Information Center

    Goldson, Edward

    1996-01-01

    This paper discusses the effects of modern war on children in the 20th century, focusing on direct and indirect effects of World War II, Vietnam War, war in Afghanistan, conflicts in Africa and in Central America, and Persian Gulf War. The paper notes the devastating effects on children of disruption of education and other public services in…

  6. Coffee vs. Cacao: A Case Study from the Vietnamese Central Highlands

    ERIC Educational Resources Information Center

    Ha, Dang Thanh; Shively, Gerald

    2005-01-01

    Mr. Nam, the vice chair of a village in Dak Lak province of Vietnam, was keen to protect farmers in his village from the sharp decline in prices of coffee ("Coffea canephora" Pierre ex Froehner). He did this by encouraging farmers in his village to plant cacao ("Theobroma cacao" L. subsp. "cacao"). Cacao was suitable…

  7. A systematic review of taeniasis, cysticercosis and trichinellosis in Vietnam.

    PubMed

    Ng-Nguyen, Dinh; Stevenson, Mark A; Traub, Rebecca J

    2017-03-21

    Taeniasis, cysticercosis and trichinellosis have been ranked as the most important food-borne parasites of humans in terms of public health, socioeconomic and trade impact. Despite this, information on these food-borne zoonoses in Vietnam is scarce and fragmented, and many local reports remain inaccessible to the international research community. This study aims to conduct comprehensive literature searches to report on the incidence and estimate the true prevalence of taeniasis in humans and T. solium cysticercosis in humans and pigs in Vietnam utilizing Bayesian models; in addition, to report the incidence and the distribution of trichinellosis. A Bayesian approach was used to estimate the true prevalence of taeniasis and cysticercosis based on published diagnostic test characteristics used in each published cross-sectional survey. The utilization of coproscopic-based examination of Taenia eggs in stool, although highly specific for genus-level detection, has poor sensitivity and led to an underestimation of the prevalence of human taeniasis. Similarly, post-mortem-based surveys of T. solium cysticercosis in pigs also led to the underestimation of prevalence of porcine cysticercosis. On the other hand, the low specificity of immunodiagnostic methods, in particular Ab-ELISA, led to a likely overestimation of T. solium cysticercosis in humans. Due to the use of imperfect diagnosis tests combined with poor descriptions of sampling methods, our ability to draw solid conclusions from these data is limited. We estimate that the true prevalence of taeniasis and T. solium cysticercosis in rural 'hotspots', is as high as 13% for each, in humans. Taeniasis and T. solium cysticercosis occurs in 60 of the 63 provinces of Vietnam. Most of the information relating to the distribution and prevalence of porcine cysticercosis is limited to commercial abattoir surveys. In Vietnam, Taenia asiatica appears to be confined to the north where it occurs sympatrically with T. solium and Taenia saginata. The status of T. asiatica in Central and South Vietnam remains unascertained. To date, five outbreaks of trichinellosis have been reported in the north and northwest of Vietnam, affecting a total of 114 people and responsible for eight fatalities. In the same region, studies of free-roaming pigs showed evidence of high levels of exposure to Trichinella and, in cases where larvae were recovered, the species present were identified as Trichinella spiralis. Based on five studies, the main risk factors for pork-borne zoonoses in Vietnam include the consumption of undercooked/raw meat and vegetables and the use of night-soil for fertilization of local produce. This systematic review draws attention to the importance of these pork-borne zoonoses.

  8. Monitoring Antibiotic Use and Residue in Freshwater Aquaculture for Domestic Use in Vietnam.

    PubMed

    Pham, Dang Kim; Chu, Jacqueline; Do, Nga Thuy; Brose, François; Degand, Guy; Delahaut, Philippe; De Pauw, Edwin; Douny, Caroline; Nguyen, Kinh Van; Vu, Ton Dinh; Scippo, Marie-Louise; Wertheim, Heiman F L

    2015-09-01

    Vietnam is an important producer of aquaculture products, and aquatic products are essential to the Vietnamese diet. However, Vietnam also has very little enforced regulation pertaining to antibiotic usage in domestic aquaculture, which raises concerns for antibiotic resistance in pathogenic bacteria. In this study, analysis was conducted on the presence of antibiotic residues in domestically sold fish and shrimp raised in freshwater farms in Vietnam, and an assessment of farmers' knowledge of proper antibiotics usage was performed. The results indicated that a quarter of tested aquaculture products were antibiotic screening test positive, and there is a general lack of knowledge about the purpose and proper usage of antibiotics by aquaculture producers. Farmers' decision-making processes about antimicrobial use are influenced by biased sources of information, such as drug manufacturers and sellers, and by financial incentives.

  9. High prevalence of cattle fascioliasis in coastal areas of Thua Thien Hue province, Vietnam.

    PubMed

    Nguyen, Nga Thi; LE, Thinh Cong; Vo, Minh Duc Co; VAN Cao, Hoang; Nguyen, Ly Thi; Ho, Khanh Thi; Nguyen, Quyet Ngoc; Tran, Vui Quang; Matsumoto, Yasunobu

    2017-06-16

    In Vietnam, especially central Vietnam, patients with fascioliasis are increasingly being reported. Since the fascioliasis is zoonotic, survey on the cattle fascioliasis should be informative for the control of human fascioliasis. In this study, the prevalence of cattle fascioliasis as well as the density of the intermediate host snails, Lymnaea swinhoei and L. viridis, were studied in Thua Thien Hue (TTH) province during 2014-2015. A total of 572 cattle feces were examined from 27 communes in 9 districts. Fasciola eggs were detected in cattle from 24 communes with an average prevalence of 23.4% (134/ 572). The highest prevalence was detected in cattle in the coastal plain terrain (31.0%) followed by plain (25.5%), mountain (21.7%), and low hilly (16.2%) terrains. The highest proportion of heavy infection (>200 EPG) was observed in the coastal plain terrain (36.1%), followed by mountains (20.0%), low hills (13.0%), and plains (8.9%). Low number of heavy infection, as well as relatively low prevalence in low hills and plains were associated with the extensive use of anti-fluke treatments. High number of intermediate host snails in low hilly and plain terrains also indicate high risk of fascioliasis. In this study, the density of Lymnaea snails in the coastal plain terrain was found to be very high (17.3 snails/m 2 ) compared to that in previous studies. This is the first report indicating the recent expansion of cattle fascioliasis in the coastal region in Vietnam.

  10. An integrative analysis of foot-and-mouth disease virus carriers in Vietnam achieved through targeted surveillance and molecular epidemiology

    USDA-ARS?s Scientific Manuscript database

    A multidisciplinary, molecular and conventional epidemiological approach was applied to an investigation of endemic foot-and-mouth disease in Vietnam. Within the study space, it was found that 22.3 percent of sampled ruminants had previously been infected with FMD virus (FMDV) and that 2.4 percent w...

  11. Population-environment drivers of H5N1 avian influenza molecular change in Vietnam

    PubMed Central

    Carrel, Margaret A.; Emch, Michael; Nguyen, Tung; Jobe, R. Todd; Wan, Xiu-Feng

    2013-01-01

    This study identifies population and environment drivers of genetic change in H5N1 avian influenza viruses (AIV) in Vietnam using a landscape genetics approach. While prior work has examined how combinations of local-level environmental variables influence H5N1 occurrence, this research expands the analysis to the complex genetic characteristics of H5N1 viruses. A dataset of 125 highly pathogenic H5N1 AIV isolated in Vietnam from 2003–2007 is used to explore which population and environment variables are correlated with increased genetic change among viruses. Results from non-parametric multidimensional scaling and regression analyses indicate that variables relating to both the environmental and social ecology of humans and birds in Vietnam interact to affect the genetic character of viruses. These findings suggest that it is a combination of suitable environments for species mixing, the presence of high numbers of potential hosts, and in particular the temporal characteristics of viral occurrence, that drive genetic change among H5N1 AIV in Vietnam. PMID:22652510

  12. Population-environment drivers of H5N1 avian influenza molecular change in Vietnam.

    PubMed

    Carrel, Margaret A; Emch, Michael; Nguyen, Tung; Todd Jobe, R; Wan, Xiu-Feng

    2012-09-01

    This study identifies population and environment drivers of genetic change in H5N1 avian influenza viruses (AIV) in Vietnam using a landscape genetics approach. While prior work has examined how combinations of local-level environmental variables influence H5N1 occurrence, this research expands the analysis to the complex genetic characteristics of H5N1 viruses. A dataset of 125 highly pathogenic H5N1 AIV isolated in Vietnam from 2003 to 2007 is used to explore which population and environment variables are correlated with increased genetic change among viruses. Results from non-parametric multidimensional scaling and regression analyses indicate that variables relating to both the environmental and social ecology of humans and birds in Vietnam interact to affect the genetic character of viruses. These findings suggest that it is a combination of suitable environments for species mixing, the presence of high numbers of potential hosts, and in particular the temporal characteristics of viral occurrence, that drive genetic change among H5N1 AIV in Vietnam. Copyright © 2012 Elsevier Ltd. All rights reserved.

  13. Isolation and phylogenetic analysis of canine distemper virus among domestic dogs in Vietnam.

    PubMed

    Nguyen, Dung Van; Suzuki, Junko; Minami, Shohei; Yonemitsu, Kenzo; Nagata, Nao; Kuwata, Ryusei; Shimoda, Hiroshi; Vu, Chien Kim; Truong, Thuy Quoc; Maeda, Ken

    2017-01-20

    Canine distemper virus (CDV) is one of the most serious pathogens found in many species of carnivores, including domestic dogs. In this study, hemagglutinin (H) genes were detected in five domestic Vietnamese dogs with diarrhea, and two CDVs were successfully isolated from dogs positive for H genes. The complete genome of one isolate, CDV/dog/HCM/33/140816, was determined. Phylogenetic analysis showed that all Vietnamese CDVs belonged to the Asia-1 genotype. In addition, the H proteins of Vietnamese CDV strains were the most homologous to those of Chinese CDVs (98.4% to 99.3% identity). These results indicated that the Asia-1 genotype of CDV was the predominant genotype circulating among the domestic dog population in Vietnam and that transboundary transmission of CDV has occurred between Vietnam and China.

  14. Isolation and phylogenetic analysis of canine distemper virus among domestic dogs in Vietnam

    PubMed Central

    NGUYEN, Dung Van; SUZUKI, Junko; MINAMI, Shohei; YONEMITSU, Kenzo; NAGATA, Nao; KUWATA, Ryusei; SHIMODA, Hiroshi; VU, Chien Kim; TRUONG, Thuy Quoc; MAEDA, Ken

    2016-01-01

    Canine distemper virus (CDV) is one of the most serious pathogens found in many species of carnivores, including domestic dogs. In this study, hemagglutinin (H) genes were detected in five domestic Vietnamese dogs with diarrhea, and two CDVs were successfully isolated from dogs positive for H genes. The complete genome of one isolate, CDV/dog/HCM/33/140816, was determined. Phylogenetic analysis showed that all Vietnamese CDVs belonged to the Asia-1 genotype. In addition, the H proteins of Vietnamese CDV strains were the most homologous to those of Chinese CDVs (98.4% to 99.3% identity). These results indicated that the Asia-1 genotype of CDV was the predominant genotype circulating among the domestic dog population in Vietnam and that transboundary transmission of CDV has occurred between Vietnam and China. PMID:27746406

  15. Use of modern contraceptives among married women in Vietnam: a multilevel analysis using the Multiple Indicator Cluster Survey (2011) and the Vietnam Population and Housing Census (2009)

    PubMed Central

    Vu, Lan Thi Hoang; Oh, Juhwan; Bui, Quyen Thi-Tu; Le, Anh Thi-Kim

    2016-01-01

    Background The prevalence of modern contraceptive use is an important indicator that reflects accessibility to reproductive health services. Satisfying unmet needs for family planning alone could reduce the number of maternal deaths by almost a third. This study uses multiple data sources to examine multilevel factors associated with the use of modern contraceptives among married women in Vietnam aged 15–49 years. Design Data from different national surveys (Vietnam Population and Housing Census, Vietnam Living Standard Survey, and Multiple Indicator Cluster Survey) were linked to create a dataset including individual and contextual (provincial) variables (N=8,341). Multilevel modeling was undertaken to examine the impact of both individual and provincial characteristics on modern contraceptive use. Odds ratios (ORs) and 95% confidence intervals (CIs) are reported. Results Individual factors significantly associated with the use of modern contraceptives were age 30–34 years (reference 15–19 years) (OR=1.63); high socioeconomic status (SES) (OR=0.8); having two living children (OR=2.4); and having a son (OR=1.4). The provincial poverty rate mediated the association between the individual's SES and the likelihood of using modern contraceptives. Conclusions The proportion of women in Vietnam using modern contraceptive methods has remained relatively high in recent years with significant variation across Vietnam's 63 provinces. Women of lower SES are more likely to use modern contraceptive methods, especially in the poorer provinces. Achieving access to universal reproductive health is one of the Millennium Development Goals. Vietnam must continue to make progress in this area. PMID:26950565

  16. The association of selected cancers with service in the US military in Vietnam. I. Non-Hodgkin's lymphoma. The Selected Cancers Cooperative Study Group (see comments)

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    1990-12-01

    As part of a series of investigations into the health of Vietnam veterans, we conducted a population-based, case-control study of non-Hodgkin's lymphoma between 1984 and 1988. All men born between 1929 and 1953 and diagnosed as having non-Hodgkin's lymphoma in an area covered by eight cancer registries were considered eligible. Control subjects were identified by random-digit dialing from these same regions and were frequency-matched to men with lymphoma by age. Analyses of 1157 men with pathologically confirmed lymphomas and 1776 control subjects showed that the risk of non-Hodgkin's lymphoma was approximately 50% higher among Vietnam veterans (odds ratio, 1.47; 95%more » confidence interval, 1.1 to 2.0) compared with men who did not serve in Vietnam. Vietnam veterans were also at higher risk relative to (1) men who had not served in the military, (2) other veterans, and (3) other veterans who served between 1964 and 1972. An analysis of the military histories of the 232 Vietnam veterans suggested that the relative risk (1) increased with length of service in Vietnam (P = .10), and (2) was higher among men in the sea-based Navy than among other veterans (P = .11). Little difference in risk, however, was noted according to dates of service, type of unit, military region, or any other characteristics that may have been associated with the use of Agent Orange. Although the cause remains uncertain, results of this study indicate that the risk of non-Hodgkin's lymphoma is higher among Vietnam veterans than among other men.« less

  17. The impact of social franchising on the use of reproductive health and family planning services at public commune health stations in Vietnam.

    PubMed

    Ngo, Anh D; Alden, Dana L; Pham, Van; Phan, Ha

    2010-02-28

    Service franchising is a business model that involves building a network of outlets (franchisees) that are locally owned, but act in coordinated manner with the guidance of a central headquarters (franchisor). The franchisor maintains quality standards, provides managerial training, conducts centralized purchasing and promotes a common brand. Research indicates that franchising private reproductive health and family planning (RHFP) services in developing countries improves quality and utilization. However, there is very little evidence that franchising improves RHFP services delivered through community-based public health clinics. This study evaluates behavioral outcomes associated with a new approach - the Government Social Franchise (GSF) model - developed to improve RHFP service quality and capacity in Vietnam's commune health stations (CHSs). The project involved networking and branding 36 commune health station (CHS) clinics in two central provinces of Da Nang and Khanh Hoa, Vietnam. A quasi-experimental design with 36 control CHSs assessed GSF model effects on client use as measured by: 1) clinic-reported client volume; 2) the proportion of self-reported RHFP service users at participating CHS clinics over the total sample of respondents; and 3) self-reported RHFP service use frequency. Monthly clinic records were analyzed. In addition, household surveys of 1,181 CHS users and potential users were conducted prior to launch and then 6 and 12 months after implementing the GSF network. Regression analyses controlled for baseline differences between intervention and control groups. CHS franchise membership was significantly associated with a 40% plus increase in clinic-reported client volumes for both reproductive and general health services. A 45% increase in clinic-reported family planning service clients related to GSF membership was marginally significant (p = 0.05). Self-reported frequency of RHFP service use increased by 20% from the baseline survey to the 12 month post-launch survey (p < 0.05). However, changes in self-reported usage rate were not significantly associated with franchise membership (p = 0.15). This study provides preliminary evidence regarding the ability of the Government Social Franchise model to increase use of reproductive health and family planning service in smaller public sector clinics. Further investigations, including assessment of health outcomes associated with increased use of GSF services and cost-effectiveness of the model, are required to better delineate the effectiveness and limitations of franchising RHFP services in the public health system in Vietnam and other developing countries.

  18. The impact of social franchising on the use of reproductive health and family planning services at public commune health stations in Vietnam

    PubMed Central

    2010-01-01

    Background Service franchising is a business model that involves building a network of outlets (franchisees) that are locally owned, but act in coordinated manner with the guidance of a central headquarters (franchisor). The franchisor maintains quality standards, provides managerial training, conducts centralized purchasing and promotes a common brand. Research indicates that franchising private reproductive health and family planning (RHFP) services in developing countries improves quality and utilization. However, there is very little evidence that franchising improves RHFP services delivered through community-based public health clinics. This study evaluates behavioral outcomes associated with a new approach - the Government Social Franchise (GSF) model - developed to improve RHFP service quality and capacity in Vietnam's commune health stations (CHSs). Methods The project involved networking and branding 36 commune health station (CHS) clinics in two central provinces of Da Nang and Khanh Hoa, Vietnam. A quasi-experimental design with 36 control CHSs assessed GSF model effects on client use as measured by: 1) clinic-reported client volume; 2) the proportion of self-reported RHFP service users at participating CHS clinics over the total sample of respondents; and 3) self-reported RHFP service use frequency. Monthly clinic records were analyzed. In addition, household surveys of 1,181 CHS users and potential users were conducted prior to launch and then 6 and 12 months after implementing the GSF network. Regression analyses controlled for baseline differences between intervention and control groups. Results CHS franchise membership was significantly associated with a 40% plus increase in clinic-reported client volumes for both reproductive and general health services. A 45% increase in clinic-reported family planning service clients related to GSF membership was marginally significant (p = 0.05). Self-reported frequency of RHFP service use increased by 20% from the baseline survey to the 12 month post-launch survey (p < 0.05). However, changes in self-reported usage rate were not significantly associated with franchise membership (p = 0.15). Conclusions This study provides preliminary evidence regarding the ability of the Government Social Franchise model to increase use of reproductive health and family planning service in smaller public sector clinics. Further investigations, including assessment of health outcomes associated with increased use of GSF services and cost-effectiveness of the model, are required to better delineate the effectiveness and limitations of franchising RHFP services in the public health system in Vietnam and other developing countries. PMID:20187974

  19. A new species of Leptolalax (Anura: Megophryidae) from Vietnam and Cambodia.

    PubMed

    Rowley, Jodi J L; Stuart, Bryan L; Neang, Thy; Hoang, Huy D; Dau, Vinh Q; Nguyen, Tao T; Emmett, David A

    2015-11-05

    We describe a new, medium-sized Leptolalax species from the Kon Tum Plateau of Vietnam and adjacent Cambodia. Leptolalax isos sp. nov. is distinguished from its congeners by a combination of an absence of distinct dark brown/black dorsolateral markings; toes with rudimentary webbing, wide lateral dermal fringes in males and weak or absent lateral dermal fringes in females; most males with wide lateral dermal fringes on Finger II, a body size of 23.7-27.9 mm in 38 adult males and 28.6-31.5 mm in 9 adult females, near immaculate white chest and belly; absence of white speckling on the dorsum; and a call consisting of 2-3 notes with a dominant frequency of 5.9-6.2 kHz (at 22.4-22.8º C). Uncorrected sequence divergences between L. isos sp. nov. and all homologous 16S rRNA sequences available are >10%. At present, the new species is known from montane evergreen forest between ~650-1100 m elevation in northeastern Cambodia and central Vietnam. Habitat within the range of the new species is threatened by deforestation and upstream hydroelectric dams.

  20. Environmental Health Risk Assessment of Dioxin Exposure through Foods in a Dioxin Hot Spot—Bien Hoa City, Vietnam

    PubMed Central

    Tuyet-Hanh, Tran Thi; Vu-Anh, Le; Ngoc-Bich, Nguyen; Tenkate, Thomas

    2010-01-01

    This study used the Australian Environmental Health Risk Assessment Framework to assess the human health risk of dioxin exposure through foods for local residents in two wards of Bien Hoa City, Vietnam. These wards are known hot-spots for dioxin and a range of stakeholders from central government to local levels were involved in this process. Publications on dioxin characteristics and toxicity were reviewed and dioxin concentrations in local soil, mud, foods, milk and blood samples were used as data for this risk assessment. A food frequency survey of 400 randomly selected households in these wards was conducted to provide data for exposure assessment. Results showed that local residents who had consumed locally cultivated foods, especially fresh water fish and bottom-feeding fish, free-ranging chicken, duck, and beef were at a very high risk, with their daily dioxin intake far exceeding the tolerable daily intake recommended by the WHO. Based on the results of this assessment, a multifaceted risk management program was developed and has been recognized as the first public health program ever to have been implemented in Vietnam to reduce the risks of dioxin exposure at dioxin hot-spots. PMID:20623031

  1. Advantages and disadvantages of a municipal solid waste collection service for citizens of Hanoi City, Vietnam.

    PubMed

    Kawai, Kosuke; Osako, Masahiro

    2013-03-01

    Governments of municipalities in Vietnam experiencing dynamic economic growth and dramatic population increases have been struggling to manage increased amounts of municipal solid waste (MSW). This study aimed to clarify the advantages and disadvantages of the current MSW collection service for citizens of the four central districts of Hanoi city, Vietnam, by conducting interviews with 200 households and 200 business entities regarding their satisfaction with the service. The survey results showed that Hanoi city provides an economical collection service with sufficient frequency and at appropriate times for citizens. However, a number of citizens complained about unsanitary conditions in the area surrounding their residence. Business entities had sufficient motivation to sell recyclable waste (RW) to the informal sector, not only to derive revenue from selling RW, but also to reduce the amount of MSW generated, thus reducing the MSW collection fee. Households were not motivated to reduce MSW by selling RW to the informal sector because they paid a fixed collection fee. As a result, an improvement in living standards in the near future is expected to contribute to increasing the amount of MSW generated from households.

  2. Characterisation of 12 microsatellite loci in the Vietnamese commercial clam Lutraria rhynchaena Jonas 1844 (Heterodonta: Bivalvia: Mactridae) through next-generation sequencing.

    PubMed

    Thai, Binh Thanh; Tan, Mun Hua; Lee, Yin Peng; Gan, Han Ming; Tran, Trang Thi; Austin, Christopher M

    2016-05-01

    The marine clam Lutraria rhynchaena is gaining popularity as an aquaculture species in Asia. Lutraria populations are present in the wild throughout Vietnam and several stocks have been established and translocated for breeding and aquaculture grow-out purposes. In this study, we demonstrate the feasibility of utilising Illumina next-generation sequencing technology to streamline the identification and genotyping of microsatellite loci from this clam species. Based on an initial partial genome scan, 48 microsatellite markers with similar melting temperatures were identified and characterised. The 12 most suitable polymorphic loci were then genotyped using 51 individuals from a population in Quang Ninh Province, North Vietnam. Genetic variation was low (mean number of alleles per locus = 2.6; mean expected heterozygosity = 0.41). Two loci showed significant deviation from Hardy-Weinberg equilibrium (HWE) and the presence of null alleles, but there was no evidence of linkage disequilibrium among loci. Three additional populations were screened (n = 7-36) to test the geographic utility of the 12 loci, which revealed 100 % successful genotyping in two populations from central Vietnam (Nha Trang). However, a second population from north Vietnam (Co To) could not be successfully genotyped and morphological evidence and mitochondrial variation suggests that this population represents a cryptic species of Lutraria. Comparisons of the Qang Ninh and Nha Trang populations, excluding the 2 loci out of HWE, revealed statistically significant allelic variation at 4 loci. We reported the first microsatellite loci set for the marine clam Lutraria rhynchaena and demonstrated its potential in differentiating clam populations. Additionally, a cryptic species population of Lutraria rhynchaena was identified during initial loci development, underscoring the overlooked diversity of marine clam species in Vietnam and the need to genetically characterise population representatives prior to microsatellite development. The rapid identification and validation of microsatellite loci using next-generation sequencing technology warrant its integration into future microsatellite loci development for key aquaculture species in Vietnam and more generally, aquaculture countries in the South East Asia region.

  3. A Systems Analysis View of the Vietnam War 1965-1972. Volume 6. Republic of Vietnam Armed Forces (RVNAF)

    DTIC Science & Technology

    1975-02-18

    CA S " T .’ T !.I),_ SECURITY CLAS ’IFI’.0" ’. O3 THIS IA(.-! (W’,.en r).-e ,, ft, e-efd ""Rr.D INSTRUCTIONSREPORT DOCUMENTATION PAGE BEFORE COMPLETING...n•.• .-’ ~e.•b t .," •..-oa• -PORT :NUMBER•• V’efiat"p 󈧗 ea~ 1, RvINAF/ None .7- UTHOR(a.) ..... 8. CONTRACT OR GRANT NUMBER(&) Thomas C. rayfg...losses, population security, war costs and inflation and construction and port operations in South Vietnam.. SDD, FR17 1473 VDIT.ON OF, t OV 66 15 o.,o

  4. 78 FR 17350 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Final Results of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-21

    ...The Department of Commerce (``the Department'') published the Preliminary Results of the eighth administrative review and aligned new shipper reviews on certain frozen fish fillets from the Socialist Republic of Vietnam (``Vietnam'') on September 12, 2012.\\1\\ We gave interested parties an opportunity to comment on the Preliminary Results. Based upon our analysis of the comments and information received, we made changes to the margin calculations for these final results. The final dumping margins are listed below in the ``Final Results of the Administrative Reviews'' section of this notice. The period of review (``POR'') is August 1, 2010, through July 31, 2011. ---------------------------------------------------------------------------

  5. Tectonic Implications of Paleoproterozoic Deo Khe Granitoids in Northwestern Vietnam

    NASA Astrophysics Data System (ADS)

    Hoang, T. H. A.; Yu, Y.; Pham, T. H.; Choi, S. H.; Tu, V. L.; Son, L. M.

    2015-12-01

    An integrated study of petrographic description, zircon U/Pb geochronology, and Hf isotopic analysis was carried out on the medium-grained two-mica Deo Khe Granitoids (DKG) in northwestern Vietnam. U/Pb zircon ages were 1855-1873 Ma, interpreted as the time of magma crystallization. On the basis of Hf isotopic compositions, a single-stage Hf model ages were estimated as 3.3-2.8 Ga. Values of Hf isotopes ɛHf (t) range from -23.6 to -17.5, suggesting that the DKG are products of reworked Archean crustal rocks. A similar sequence of tectonic events including the presence of 2.8-2.9 Ga tonalite-trondhjemite-granodiorite (TTG) gneiss, metamorphic development of TTG gneiss at 1.9-2.0 Ga, and 1.85 Ga magmatic activity were recognized both in Yangtze block and northwestern Vietnam. Therefore we propose that basement rocks in northern Vietnam are similar to those found along southern China.

  6. Determinants and impacts of international remittances on household welfare in Vietnam.

    PubMed

    Pfau, Wade Donald; Giang, Long Thanh

    2009-01-01

    Remittances can potentially help to promote economic development by providing a mechanism to share risks, reduce poverty and improve equality. However, from the viewpoint of economic theory the overall impacts of remittances are uncertain, as different mechanisms lead to opposite impacts. Since the 1990s Vietnam has experienced a dramatic growth in remittance flows from abroad. Vietnam is a unique case for study, as economic motives historically played a smaller role in outward migration than in other countries. Fortunately, household survey data are available for this time period, allowing for a detailed analysis of the impacts of international remittances on Vietnam. Specifically, we examine the characteristics of recipients and the impacts of international remittances on economic inequality and poverty. We conclude that international remittances are helping to improve equality. For this reason, new development policies must also account for their potential impacts on remittance flows.

  7. Understanding Satisfaction with Shamanic Practices among the Hmong in Rural California

    ERIC Educational Resources Information Center

    Pinson-Perez, Helda; Moua, Neng; Perez, Miguel A.

    2005-01-01

    The Hmong are a group of people from Southern China, Laos, Northern Vietnam, and Thailand who have immigrated to the US and who have settled in rural counties in Central California. The literature suggests, the Hmong routinely use the services of shamans as part of their health care services. The purpose of this study was to determine the…

  8. Assessment of the status of resources for essential trauma care in Hanoi and Khanh Hoa, Vietnam.

    PubMed

    Son, Nguyen Thai; Thu, Nguyen Hoai; Tu, Nguyen Thi Hong; Mock, Charles

    2007-09-01

    The World Health Organization and the International Association for Trauma Surgery and Intensive Care have published the Guidelines for Essential Trauma Care. This provides recommendations for the human and physical resources needed to provide an adequate, essential level of trauma care services in countries at all economic levels worldwide. We sought to use this set of recommendations as a basis to assess the trauma care capabilities in two locations in Vietnam and thus to identify affordable and sustainable methods to strengthen trauma care nationwide. A needs assessment tool was created that incorporated the recommendations of the Guidelines. This was used to conduct in-depth, onsite evaluations of 11 health care facilities in Hanoi and Khanh Hoa Province, including commune health stations, district hospitals, provincial hospitals, and a central hospital. Resources for trauma care were mostly adequate at provincial and central hospitals. There were several deficiencies at the district hospitals and especially at commune health stations. These included low level of trauma related training and shortages of supplies and equipment. In many cases these shortages were of low-cost items. However, in general, capabilities had improved compared with prior evaluations. This study has identified several low-cost ways in which to strengthen trauma care in Vietnam. These include greater use of continuing education courses for trauma care and more attention to trauma related curriculum in schools of medicine and nursing. These also include defining and assuring the availability of a core set of essential trauma related equipment and supplies. A policy recommendation that follows from the above findings is the need for programs to strengthen the organization and planning for trauma care.

  9. The Standard of Quality for HEIs in Vietnam: A Step in the Right Direction?

    ERIC Educational Resources Information Center

    Tran, Nga D.; Nguyen, Thanh T.; Nguyen, My T. N.

    2011-01-01

    Purpose: The purpose of this paper is to provide a critical analysis of the Standard of Quality for higher education institutions in Vietnam which was developed in response to an urgent call for a fundamental reform to enhance the quality of educational provision, particularly of teaching and learning. Design/methodology/approach: The standard and…

  10. Exploring the emerging profession of speech-language pathology in Vietnam through pioneering eyes.

    PubMed

    Atherton, Marie; Davidson, Bronwyn; McAllister, Lindy

    2017-04-01

    In September 2012, 18 Vietnamese health professionals graduated as Vietnam's first university qualified speech-language pathologists (SLPs). This study details the reflections of these pioneering health professionals at 12 months following their graduation, drawing attention to their scope of practice as SLPs and to the opportunities and challenges to progressing the practice of speech-language pathology (SLP) in Vietnam. Thirteen graduates participated in small group interviews where they described their work and their perceptions of their emerging practice. Thematic analysis of the interview transcripts was employed to identify key concepts and themes within the data. Four overarching themes were identified-scope of practice, establishing identity, confidence to practise and progressing the profession. Overall analysis revealed evolving professional practice characterised by new learning, fluctuations in confidence and an active forging of professional identity. Mentoring and support by international colleagues and advancing professional recognition were identified as critical to the profession's progression and to the development of context-specific and culturally appropriate services. Participants' reflections draw focus to an important role for the international SLP community as it works in partnership with colleagues to enhance awareness of and services for people with communication disabilities in under-served communities such as Vietnam.

  11. Phylogenetic analysis of rubella viruses in Vietnam during 2009-2010.

    PubMed

    Tran, Dinh Nguyen; Pham, Ngan Thi Kim; Tran, Thi Thuy Trinh; Khamrin, Pattara; Thongprachum, Aksara; Komase, Katsuhiro; Hayakawa, Satoshi; Mizuguchi, Masashi; Ushijima, Hiroshi

    2012-04-01

    Rubella virus (RV) usually causes a mild disease. However, infection during the first trimester of pregnancy often leads to severe birth defects known as congenital rubella syndrome (CRS). Although wild-type RVs exist and circulate worldwide, their genotypes remain unknown in many countries. The aim of this study was to identify the molecular characteristics of RVs found in Vietnam during the years 2009-2010 and to provide the first data concerning RV genotypes in this country. Throat swab samples were collected between 2009 and 2010 from four CRS cases and nine rubella infection cases visiting one Children's Hospital and one outpatient clinic in Ho Chi Minh City. The 739-nucleotide coding region of the RV E1 gene recommended by the World Health Organization was amplified by reverse transcriptase PCR, and the resulting DNA fragments were then sequenced. Sequences were assigned to genotypes by phylogenetic analysis with RV reference strains. RV RNA was detected in 11 clinical specimens. Phylogenetic analysis of the sequences showed that all 11 strains belonged to 2B genotype. Several variations in amino acids were found, among which five changes were involved in the B and T cell epitopes. These data indicate that viruses of genotype 2B were circulating in Vietnam. The increasing information about RV genotype in Vietnam should aid in the control of rubella infection and CRS in this country. Copyright © 2012 Wiley Periodicals, Inc.

  12. A Systematic Review of Scope and Quality of Health Economic Evaluation Studies in Vietnam

    PubMed Central

    Maher, Rachel Marie; Nguyen, Phuong Khanh; Luu, Hoat Ngoc

    2014-01-01

    Introduction The application of health economic evaluation (HEE) evidence can play an important role in strategic planning and policy making. This study aimed to assess the scope and quality of existing research, with the goal of elucidating implications for improving the use of HEE evidence in Vietnam. Methods A comprehensive search strategy was developed to search medical online databases (Medline, Google Scholar, and Vietnam Medical Databases) to select all types of HEE studies except cost-only analyses. Two researchers assessed the quality of selected studies using the Quality of Health Economic Studies (QHES) instrument. Results We selected 26 studies, including 6 published in Vietnam. The majority of these studies focused on infectious diseases (14 studies), with HIV being the most common topic (5 studies). Most papers were cost-effectiveness studies that measured health outcomes using DALY units. Using QHES, we found that the overall quality of HEE studies published internationally was much higher (mean score 88.7+13.3) than that of those published in Vietnam (mean score 67.3+22.9). Lack of costing perspectives, reliable data sources and sensitivity analysis were the main shortcomings of the reviewed studies. Conclusion This review indicates that HEE studies published in Vietnam are limited in scope and number, as well as by several important technical errors or omissions. It is necessary to formalize the process of health economic research in Vietnam and to institutionalize the links between researchers and policy-makers. Additionally, the quality of HEE should be enhanced through education about research techniques, and the implementation of standard HEE guidelines. PMID:25122180

  13. A Systems Analysis View of the Vietnam War: 1965-1972 Volume 7. Republic of Vietnam Armed Forces (RVNAF)

    DTIC Science & Technology

    1975-02-18

    receiied frequent rebuttals or comments on our analyses which sharpened our studies and stimulated better analysis by other agencies. Second. it was...CONFIDENTIAL aI average rates in Tablt 2 show that 5 of the 15 units studied will have over half of their personnel desert in 19 6 9/. Only one unit, the...G8 directed RVNAP units to assist servicemen going on leave with transpQrtation. In two special "test cases " US units are assisting South Vietnamese

  14. A Comparative Analysis of Unit Cohesion in Vietnam

    DTIC Science & Technology

    2014-06-13

    the political process, and result in a communist government; this became known as the Domino Theory . The United States replaced the French and...a theory of linkage; leveraging the political ties of Communist countries, namely the USSR and China, to influence North Vietnam, and deterrence; a...and Henderson provide some of the more popular theories about cohesion. Winkler points out that the relationship between stability, cohesion and

  15. Race and incarceration in an aging cohort of Vietnam veterans in treatment for post-traumatic stress disorder (PTSD).

    PubMed

    Coker, Kendell L; Rosenheck, Robert

    2014-03-01

    Cross sectional studies have addressed the incarceration of Vietnam veterans with post-traumatic stress disorder (PTSD), but no studies have examined changes in incarceration as they age. This study examines patterns of incarceration among Vietnam veterans treated in specialized veterans affairs (VA) intensive PTSD programs over time. Data was drawn from admission data from the initial episode of treatment of Caucasian and African American Vietnam veterans entering VA specialized intensive PTSD programs between 1993 and 2011 (N = 31,707). Bivariate correlations and logistic regression were used to examine associations among race and incarceration over time and the potentially confounding influence of demographic and clinical covariates on this relationship. Rates of reported incarceration declined from 63 to 43%. Over time, African American veterans were 34% more likely than Caucasian veterans to have a lifetime history of incarceration while interaction analysis showed steeper declines for Caucasians than African Americans. Rates of incarceration among these Vietnam veterans declined as they aged. Furthermore, African American veterans were substantially more likely than Caucasian veterans to have been incarcerated and showed less decline as the cohort aged. While reduced, needs for clinical PTSD services remain among aging combat veterans.

  16. Flood loss assessment in Can Tho City, Vietnam

    NASA Astrophysics Data System (ADS)

    Do, T. C.; Kreibich, H.

    2012-04-01

    Floods are recurring events in the Lower Mekong Basin resulting in loss of life and property, causing damage to agriculture and rural infrastructure, and disrupting social and economic activities. Flood management and mitigation has become a priority issue at the national and regional levels. Besides, it is expected that large areas of the Mekong delta, the Red River delta and the central coast will be flooded by sea-level rise due to climate change. Can Tho City is ranked under the five most flood-tide-influenced cities of Vietnam. It is the biggest city in the Mekong delta and it is located near the Hau river. Like other region of the Mekong delta, Can Tho suffers due to floods from upstream and flood tides from the sea. In the flood season large rural areas of the city are flooded, particularly during tidal days. Flood risk management policy includes preparative measures for living with floods and to minimise the damage caused by floods as well as to take advantage of floods for sustainable development. An intensive literature review, including administrative reports as well as expert interviews have been undertaken to gain more insight into flood characteristics, their consequences and risk mitigation. Therefore, flood damaging processes and trends have been reviewed for Can Tho City and the Mekong Basin in Vietnam. Additionally, suitable flood damage estimation methodologies have been collected as important input for flood risk analyses. On this basis it has been investigated which flood risk mitigation and management strategies promise to be effective in Can Tho City, Vietnam.

  17. High prevalence of cattle fascioliasis in coastal areas of Thua Thien Hue province, Vietnam

    PubMed Central

    NGUYEN, Nga Thi; LE, Thinh Cong; VO, Minh Duc Co; VAN CAO, Hoang; NGUYEN, Ly Thi; HO, Khanh Thi; NGUYEN, Quyet Ngoc; TRAN, Vui Quang; MATSUMOTO, Yasunobu

    2017-01-01

    In Vietnam, especially central Vietnam, patients with fascioliasis are increasingly being reported. Since the fascioliasis is zoonotic, survey on the cattle fascioliasis should be informative for the control of human fascioliasis. In this study, the prevalence of cattle fascioliasis as well as the density of the intermediate host snails, Lymnaea swinhoei and L. viridis, were studied in Thua Thien Hue (TTH) province during 2014–2015. A total of 572 cattle feces were examined from 27 communes in 9 districts. Fasciola eggs were detected in cattle from 24 communes with an average prevalence of 23.4% (134/ 572). The highest prevalence was detected in cattle in the coastal plain terrain (31.0%) followed by plain (25.5%), mountain (21.7%), and low hilly (16.2%) terrains. The highest proportion of heavy infection (>200 EPG) was observed in the coastal plain terrain (36.1%), followed by mountains (20.0%), low hills (13.0%), and plains (8.9%). Low number of heavy infection, as well as relatively low prevalence in low hills and plains were associated with the extensive use of anti-fluke treatments. High number of intermediate host snails in low hilly and plain terrains also indicate high risk of fascioliasis. In this study, the density of Lymnaea snails in the coastal plain terrain was found to be very high (17.3 snails/m2) compared to that in previous studies. This is the first report indicating the recent expansion of cattle fascioliasis in the coastal region in Vietnam. PMID:28458272

  18. Key Challenges in the Reform of Governance, Quality Assurance, and Finance in Vietnamese Higher Education--A Case Study

    ERIC Educational Resources Information Center

    Dao, Khanh Van

    2015-01-01

    Vietnam's higher education is highly centralized in terms of its governance and management. A couple of higher education reform plans have been introduced over the past decade but they seem to result in poor outcomes. This paper addresses the challenges faced in the areas of governance, quality assurance and finance by a "key" university…

  19. The Hmong: An Annotated Bibliography, 1983-1987. Southeast Asian Refugee Studies Occasional Papers Number Seven.

    ERIC Educational Resources Information Center

    Smith, J. Christina, Comp.

    The Hmong are a preliterate Southeast Asian tribe in the remote highlands of Vietnam, Thailand, and Laos. During the 1960s and 1970s, the Central Intelligence Agency (CIA) recruited many Hmong to fight rebel forces in Indochina. Losing to the Pathet Lao in 1975, the Hmong were forced to flee Communist-controlled Laos. The United States accepted…

  20. Impact of presumed service-connected diagnosis on the Department of Veterans Affairs healthcare utilization patterns of Vietnam-Theater Veterans

    PubMed Central

    Fried, Dennis A.; Rajan, Mangala; Tseng, Chin-lin; Helmer, Drew

    2018-01-01

    Abstract During the Vietnam War, the US military sprayed almost 20 million gallons of Agent Orange (AO), an herbicide contaminated with dioxin, over Vietnam. Approximately, 2.7 million US military personnel may have been exposed to AO during their deployment. Ordinarily, veterans who can demonstrate a nexus between a diagnosed condition and military service are eligible for Department of Veterans Affairs (VA) service-connected disability compensation. Vietnam Veterans have had difficulty, however, establishing a nexus between AO exposure and certain medical conditions that developed many years after the war. In response, VA has designated certain conditions as “presumed service connected” for Vietnam Veterans who were present and possibly exposed. Veterans with any of these designated conditions do not have to document AO exposure, making it easier for them to access the VA disability system. The extent to which VA healthcare utilization patterns reflect easier access afforded those with diagnosed presumptive conditions remains unknown. In this cross-sectional study, we hypothesized that Vietnam Veterans with diagnosed presumptive conditions would be heavier users of the VA healthcare system than those without these conditions. In our analysis of 85,699 Vietnam Veterans, we used binary and cumulative logit multivariable regression to assess associations between diagnosed presumptive conditions and VA healthcare utilization in 2013. We found that diagnosed presumptive conditions were associated with higher odds of 5+ VHA primary care visits (OR = 2.01, 95% CI: 1.93–2.07), 5+ specialty care visits (OR = 2.11, 95% CI: 2.04–2.18), emergency department use (OR = 1.22, 95% CI: 1.11–1.34), and hospitalization (OR = 1.23, 95% CI: 1.17–1.29). Consistent with legislative intent, presumptive policies appear to facilitate greater VA system utilization for Vietnam Veterans who may have been exposed to AO. PMID:29742706

  1. Impact of presumed service-connected diagnosis on the Department of Veterans Affairs healthcare utilization patterns of Vietnam-Theater Veterans: A cross-sectional study.

    PubMed

    Fried, Dennis A; Rajan, Mangala; Tseng, Chin-Lin; Helmer, Drew

    2018-05-01

    During the Vietnam War, the US military sprayed almost 20 million gallons of Agent Orange (AO), an herbicide contaminated with dioxin, over Vietnam. Approximately, 2.7 million US military personnel may have been exposed to AO during their deployment. Ordinarily, veterans who can demonstrate a nexus between a diagnosed condition and military service are eligible for Department of Veterans Affairs (VA) service-connected disability compensation. Vietnam Veterans have had difficulty, however, establishing a nexus between AO exposure and certain medical conditions that developed many years after the war. In response, VA has designated certain conditions as "presumed service connected" for Vietnam Veterans who were present and possibly exposed. Veterans with any of these designated conditions do not have to document AO exposure, making it easier for them to access the VA disability system. The extent to which VA healthcare utilization patterns reflect easier access afforded those with diagnosed presumptive conditions remains unknown. In this cross-sectional study, we hypothesized that Vietnam Veterans with diagnosed presumptive conditions would be heavier users of the VA healthcare system than those without these conditions. In our analysis of 85,699 Vietnam Veterans, we used binary and cumulative logit multivariable regression to assess associations between diagnosed presumptive conditions and VA healthcare utilization in 2013. We found that diagnosed presumptive conditions were associated with higher odds of 5+ VHA primary care visits (OR = 2.01, 95% CI: 1.93-2.07), 5+ specialty care visits (OR = 2.11, 95% CI: 2.04-2.18), emergency department use (OR = 1.22, 95% CI: 1.11-1.34), and hospitalization (OR = 1.23, 95% CI: 1.17-1.29). Consistent with legislative intent, presumptive policies appear to facilitate greater VA system utilization for Vietnam Veterans who may have been exposed to AO.

  2. United States Army Rangers in Somalia: an analysis of combat casualties on an urban battlefield.

    PubMed

    Mabry, R L; Holcomb, J B; Baker, A M; Cloonan, C C; Uhorchak, J M; Perkins, D E; Canfield, A J; Hagmann, J H

    2000-09-01

    This study was undertaken to determined the differences in injury patterns between soldiers equipped with modern body armor in an urban environment compared with the soldiers of the Vietnam War. From July 1998 to March 1999, data were collected for a retrospective analysis on all combat casualties sustained by United States military forces in Mogadishu, Somalia, on October 3 and 4, 1993. This was the largest and most recent urban battle involving United States ground forces since the Vietnam War. There were 125 combat casualties. Casualty distribution was similar to that of Vietnam; 11% died on the battlefield, 3% died after reaching a medical facility, 47% were evacuated, and 39% returned to duty. The incidence of bullet wounds in Somalia was higher than in Vietnam (55% vs. 30%), whereas there were fewer fragment injuries (31% vs. 48%). Blunt injury (12%) and burns (2%) caused the remaining injuries in Somalia. Fatal penetrating injuries in Somalia compared with Vietnam included wounds to the head and face (36% vs. 35%), neck (7% vs. 8%), thorax (14% vs. 39%), abdomen (14% vs. 7%), thoracoabdominal (7% vs. 2%), pelvis (14% vs. 2%), and extremities (7% vs. 7%). No missiles penetrated the solid armor plate protecting the combatants' anterior chests and upper abdomens. Most fatal penetrating injuries were caused by missiles entering through areas not protected by body armor, such as the face, neck, pelvis, and groin. Three patients with penetrating abdominal wounds died from exsanguination, and two of these three died after damage-control procedures. The incidence of fatal head wounds was similar to that in Vietnam in spite of modern Kevlar helmets. Body armor reduced the number of fatal penetrating chest injuries. Penetrating wounds to the unprotected face, groin, and pelvis caused significant mortality. These data may be used to design improved body armor.

  3. The Empirical Analysis of Cigarette Tax Avoidance and Illicit Trade in Vietnam, 1998-2010

    PubMed Central

    Nguyen, Minh Thac; Denniston, Ryan; Nguyen, Hien Thi Thu; Hoang, Tuan Anh; Ross, Hana; So, Anthony D.

    2014-01-01

    Illicit trade carries the potential to magnify existing tobacco-related health care costs through increased availability of untaxed and inexpensive cigarettes. What is known with respect to the magnitude of illicit trade for Vietnam is produced primarily by the industry, and methodologies are typically opaque. Independent assessment of the illicit cigarette trade in Vietnam is vital to tobacco control policy. This paper measures the magnitude of illicit cigarette trade for Vietnam between 1998 and 2010 using two methods, discrepancies between legitimate domestic cigarette sales and domestic tobacco consumption estimated from surveys, and trade discrepancies as recorded by Vietnam and trade partners. The results indicate that Vietnam likely experienced net smuggling in during the period studied. With the inclusion of adjustments for survey respondent under-reporting, inward illicit trade likely occurred in three of the four years for which surveys were available. Discrepancies in trade records indicate that the value of smuggled cigarettes into Vietnam ranges from $100 million to $300 million between 2000 and 2010 and that these cigarettes primarily originate in Singapore, Hong Kong, Macao, Malaysia, and Australia. Notable differences in trends over time exist between the two methods, but by comparison, the industry estimates consistently place the magnitude of illicit trade at the upper bounds of what this study shows. The unavailability of annual, survey-based estimates of consumption may obscure the true, annual trend over time. Second, as surveys changed over time, estimates relying on them may be inconsistent with one another. Finally, these two methods measure different components of illicit trade, specifically consumption of illicit cigarettes regardless of origin and smuggling of cigarettes into a particular market. However, absent a gold standard, comparisons of different approaches to illicit trade measurement serve efforts to refine and improve measurement approaches and estimates. PMID:24489886

  4. The empirical analysis of cigarette tax avoidance and illicit trade in Vietnam, 1998-2010.

    PubMed

    Nguyen, Minh Thac; Denniston, Ryan; Nguyen, Hien Thi Thu; Hoang, Tuan Anh; Ross, Hana; So, Anthony D

    2014-01-01

    Illicit trade carries the potential to magnify existing tobacco-related health care costs through increased availability of untaxed and inexpensive cigarettes. What is known with respect to the magnitude of illicit trade for Vietnam is produced primarily by the industry, and methodologies are typically opaque. Independent assessment of the illicit cigarette trade in Vietnam is vital to tobacco control policy. This paper measures the magnitude of illicit cigarette trade for Vietnam between 1998 and 2010 using two methods, discrepancies between legitimate domestic cigarette sales and domestic tobacco consumption estimated from surveys, and trade discrepancies as recorded by Vietnam and trade partners. The results indicate that Vietnam likely experienced net smuggling in during the period studied. With the inclusion of adjustments for survey respondent under-reporting, inward illicit trade likely occurred in three of the four years for which surveys were available. Discrepancies in trade records indicate that the value of smuggled cigarettes into Vietnam ranges from $100 million to $300 million between 2000 and 2010 and that these cigarettes primarily originate in Singapore, Hong Kong, Macao, Malaysia, and Australia. Notable differences in trends over time exist between the two methods, but by comparison, the industry estimates consistently place the magnitude of illicit trade at the upper bounds of what this study shows. The unavailability of annual, survey-based estimates of consumption may obscure the true, annual trend over time. Second, as surveys changed over time, estimates relying on them may be inconsistent with one another. Finally, these two methods measure different components of illicit trade, specifically consumption of illicit cigarettes regardless of origin and smuggling of cigarettes into a particular market. However, absent a gold standard, comparisons of different approaches to illicit trade measurement serve efforts to refine and improve measurement approaches and estimates.

  5. Five new, microendemic Asian Leaf-litter Frogs (Leptolalax) from the southern Annamite mountains, Vietnam.

    PubMed

    Rowley, Jodi J L; Tran, Dao T A; Le, Duong T T; Dau, Vinh Q; Peloso, Pedro L V; Nguyen, Truong Q; Hoang, Huy D; Nguyen, Tao T; Ziegler, Thomas

    2016-03-01

    The Leptolalax applebyi group of Asian leaf-litter frogs currently comprises four species of particularly small-bodied (<40 mm SVL) species distributed in the Central Highlands of Vietnam and northeastern Cambodia. In addition to their small size, the group is characterized by their morphological and genetic similarities, as well as their breeding habitat at headwaters of small mountain streams and seeps. A recent study suggested that at least two-thirds of the diversity of the group remained hidden within morphologically cryptic lineages. We expand upon the molecular, morphometric, and acoustic data and formally delineate and describe five of these lineages as distinct species: Leptolalax ardens sp. nov., Leptolalax kalonensis sp. nov., Leptolalax pallidus sp. nov., Leptolalax maculosus sp. nov., and Leptolalax tadungensis sp. nov. Due to habitat loss, the current ranges of these species are likely to be a fraction of their historical extent and under continued threat from deforestation.

  6. Progress and challenges of nuclear science development in Vietnam - an outlook on the occassion of the 10-th anniversary of the Dalat Nuclear Research Reactor

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hien, P.D.

    1994-12-31

    Over ten years since the commissioning of the Dalat nuclear research reactor a number of nuclear techniques have been developed and applied in Vietnam Manufacturing of radioisotopes and nuclear instruments, development of isotope tracer and nuclear analytical techniques for environmental studies, exploitation of filtered neutron beams, ... have been major activities of reactor utilizations. Efforts made during ten years of reactor operation have resulted also in establishing and sustaining the applications of nuclear techniques in medicine, industry, agriculture, etc. The successes achieved and lessons teamed over the past ten years are discussed illustrating the approaches taken for developing the nuclearmore » science in the conditions of a country having a very low national income and experiencing a transition from a centrally planned to a market-oriented economic system.« less

  7. Maternal socioeconomic and demographic factors associated with the sex ratio at birth in Vietnam.

    PubMed

    Pham, Bang Nguyen; Adair, Timothy; Hill, Peter S

    2010-11-01

    In recent years Vietnam has experienced a high sex ratio at birth (SRB) amidst rapid socioeconomic and demographic changes. However, little is known about the differentials in SRB between maternal socioeconomic and demographic groups. The paper uses data from the annual Population Change Survey (PCS) in 2006 to examine the relationship of the sex ratio of the most recent birth with maternal socioeconomic and demographic characteristics and the number of previous female births. The SRB of Vietnam was significantly high at 111.4 (95% CI 109.7-113.1) for the period 1st April 2000 to 31st March 2006. Multivariate analysis reveals that sex of the most recent birth is strongly related with the number of previous female births. This association is consistent across different socioeconomic and demographic groups of women. Given the high SRB in Vietnam, further research into the reasons for high SRB in these groups is required, as are intervention programmes such as those raising the public awareness of its negative consequences.

  8. Emerging Coxsackievirus A6 Causing Hand, Foot and Mouth Disease, Vietnam

    PubMed Central

    Anh, Nguyen To; Nhu, Le Nguyen Truc; Van, Hoang Minh Tu; Hong, Nguyen Thi Thu; Thanh, Tran Tan; Hang, Vu Thi Ty; Ny, Nguyen Thi Han; Nguyet, Lam Anh; Phuong, Tran Thi Lan; Nhan, Le Nguyen Thanh; Hung, Nguyen Thanh; Khanh, Truong Huu; Tuan, Ha Manh; Viet, Ho Lu; Nam, Nguyen Tran; Viet, Do Chau; Qui, Phan Tu; Wills, Bridget; Sabanathan, Sarawathy; Chau, Nguyen Van Vinh; Thwaites, Louise; Rogier van Doorn, H.; Thwaites, Guy; Rabaa, Maia A.

    2018-01-01

    Hand, foot and mouth disease (HFMD) is a major public health issue in Asia and has global pandemic potential. Coxsackievirus A6 (CV-A6) was detected in 514/2,230 (23%) of HFMD patients admitted to 3 major hospitals in southern Vietnam during 2011–2015. Of these patients, 93 (18%) had severe HFMD. Phylogenetic analysis of 98 genome sequences revealed they belonged to cluster A and had been circulating in Vietnam for 2 years before emergence. CV-A6 movement among localities within Vietnam occurred frequently, whereas viral movement across international borders appeared rare. Skyline plots identified fluctuations in the relative genetic diversity of CV-A6 corresponding to large CV-A6–associated HFMD outbreaks worldwide. These data show that CV-A6 is an emerging pathogen and emphasize the necessity of active surveillance and understanding the mechanisms that shape the pathogen evolution and emergence, which is essential for development and implementation of intervention strategies. PMID:29553326

  9. Marked genomic heterogeneity of rat hepatitis E virus strains in Indonesia demonstrated on a full-length genome analysis.

    PubMed

    Mulyanto; Suparyatmo, Joseph Benedictus; Andayani, I Gusti Ayu Sri; Khalid; Takahashi, Masaharu; Ohnishi, Hiroshi; Jirintai, Suljid; Nagashima, Shigeo; Nishizawa, Tsutomu; Okamoto, Hiroaki

    2014-01-22

    Rat hepatitis E virus (HEV) strains have recently been isolated in several areas of Germany, Vietnam, the United States, Indonesia and China. However, genetic information regarding these rat HEV strains is limited. A total of 369 wild rats (Rattus rattus) captured in Central Java (Solo) and on Lombok Island, Indonesia were tested for the presence of rat HEV-specific antibodies and RNA. Overall, 137 rats (37.1%) tested positive for rat anti-HEV antibodies, while 97 (26.3%) had rat HEV RNA detectable on reverse transcription-PCR with primers targeting the ORF1-ORF2 junctional region. The 97 HEV strains recovered from these viremic rats were 76.3-100% identical to each other in an 840-nucleotide sequence and 75.4-88.4% identical to the rat HEV strains reported in Germany and Vietnam. Five representative Indonesian strains, one from each of five phylogenetic clusters, whose entire genomic sequence was determined, were segregated into three genetic groups (a German type, Vietnamese type and novel type), which differed from each other by 19.5-23.5 (22.0 ± 1.7)% over the entire genome. These results suggest the presence of at least three genetic groups of rat HEV and indicate the circulation of polyphyletic strains of rat HEV belonging to three distinct genetic groups in Indonesia. Copyright © 2013 Elsevier B.V. All rights reserved.

  10. 31 CFR 500.549 - Proof of origin.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... goods the origin of which is North Korea, North Viet-Nam, Cambodia, or South Viet-Nam are generally not... North Korea, North Viet-Nam, Cambodia, or South Viet-Nam prior to the applicable effective date and of the absence of any interest of North Korea, North Viet-Nam, Cambodia, or South Viet-Nam in the goods...

  11. Primary healthcare system capacities for responding to storm and flood-related health problems: a case study from a rural district in central Vietnam

    PubMed Central

    Van Minh, Hoang; Tuan Anh, Tran; Rocklöv, Joacim; Bao Giang, Kim; Trang, Le Quynh; Sahlen, Klas-Göran; Nilsson, Maria; Weinehall, Lars

    2014-01-01

    Background As a tropical depression in the East Sea, Vietnam is greatly affected by climate change and natural disasters. Knowledge of the current capacity of the primary healthcare system in Vietnam to respond to health issues associated with storms and floods is very important for policy making in the country. However, there has been little scientific research in this area. Objective This research was to assess primary healthcare system capacities in a rural district in central Vietnam to respond to such health issues. Design This was a cross-sectional descriptive study using quantitative and qualitative approaches. Quantitative methods used self-administered questionnaires. Qualitative methods (in-depth interviews and focus groups discussions) were used to broaden understanding of the quantitative material and to get additional information on actions taken. Results 1) Service delivery: Medical emergency services, especially surgical operations and referral systems, were not always available during the storm and flood seasons. 2) Governance: District emergency plans focus largely on disaster response rather than prevention. The plans did not clearly define the role of primary healthcare and had no clear information on the coordination mechanism among different sectors and organizations. 3) Financing: The budget for prevention and control of flood and storm activities was limited and had no specific items for healthcare activities. Only a little additional funding was available, but the procedures to get this funding were usually time-consuming. 4) Human resources: Medical rescue teams were established, but there were no epidemiologists or environmental health specialists to take care of epidemiological issues. Training on prevention and control of climate change and disaster-related health issues did not meet actual needs. 5) Information and research: Data that can be used for planning and management (including population and epidemiological data) were largely lacking. The district lacked a disease early-warning system. 6) Medical products and technology: Emergency treatment protocols were not available in every studied health facility. Conclusions The primary care system capacity in rural Vietnam is inadequate for responding to storm and flood-related health problems in terms of preventive and treatment healthcare. Developing clear facility preparedness plans, which detail standard operating procedures during floods and identify specific job descriptions, would strengthen responses to future floods. Health facilities should have contingency funds available for emergency response in the event of storms and floods. Health facilities should ensure that standard protocols exist in order to improve responses in the event of floods. Introduction of a computerized health information system would accelerate information and data processing. National and local policies need to be strengthened and developed in a way that transfers into action in local rural communities. PMID:25511879

  12. Primary healthcare system capacities for responding to storm and flood-related health problems: a case study from a rural district in central Vietnam.

    PubMed

    Van Minh, Hoang; Tuan Anh, Tran; Rocklöv, Joacim; Bao Giang, Kim; Trang, Le Quynh; Sahlen, Klas-Göran; Nilsson, Maria; Weinehall, Lars

    2014-01-01

    As a tropical depression in the East Sea, Vietnam is greatly affected by climate change and natural disasters. Knowledge of the current capacity of the primary healthcare system in Vietnam to respond to health issues associated with storms and floods is very important for policy making in the country. However, there has been little scientific research in this area. This research was to assess primary healthcare system capacities in a rural district in central Vietnam to respond to such health issues. This was a cross-sectional descriptive study using quantitative and qualitative approaches. Quantitative methods used self-administered questionnaires. Qualitative methods (in-depth interviews and focus groups discussions) were used to broaden understanding of the quantitative material and to get additional information on actions taken. 1) Service delivery: Medical emergency services, especially surgical operations and referral systems, were not always available during the storm and flood seasons. 2) Governance: District emergency plans focus largely on disaster response rather than prevention. The plans did not clearly define the role of primary healthcare and had no clear information on the coordination mechanism among different sectors and organizations. 3) Financing: The budget for prevention and control of flood and storm activities was limited and had no specific items for healthcare activities. Only a little additional funding was available, but the procedures to get this funding were usually time-consuming. 4) Human resources: Medical rescue teams were established, but there were no epidemiologists or environmental health specialists to take care of epidemiological issues. Training on prevention and control of climate change and disaster-related health issues did not meet actual needs. 5) Information and research: Data that can be used for planning and management (including population and epidemiological data) were largely lacking. The district lacked a disease early-warning system. 6) Medical products and technology: Emergency treatment protocols were not available in every studied health facility. The primary care system capacity in rural Vietnam is inadequate for responding to storm and flood-related health problems in terms of preventive and treatment healthcare. Developing clear facility preparedness plans, which detail standard operating procedures during floods and identify specific job descriptions, would strengthen responses to future floods. Health facilities should have contingency funds available for emergency response in the event of storms and floods. Health facilities should ensure that standard protocols exist in order to improve responses in the event of floods. Introduction of a computerized health information system would accelerate information and data processing. National and local policies need to be strengthened and developed in a way that transfers into action in local rural communities.

  13. Analysis of swine movements in a province in Northern Vietnam and application in the design of surveillance strategies for infectious diseases

    PubMed Central

    Baudon, Eugénie; Fournié, Guillaume; Hiep, Dao Thi; Pham, Thi Thanh Hoa; Duboz, Raphael; Gély, Marie; Peiris, Malik; Cowling, Benjamin J.; Ton, Vu Dinh; Peyre, Marisa

    2015-01-01

    Summary While swine production is rapidly growing in South-East Asia, the structure of the swine industry and the dynamic of pig movements have not been well-studied. However, this knowledge is a pre-requisite for understanding the dynamic of disease transmission in swine populations and designing cost-effective surveillance strategies for infectious diseases. In this study, we assessed the farming and trading practices in the Vietnamese swine familial farming sector, which accounts for most pigs in Vietnam, and for which disease surveillance is a major challenge. Farmers from two communes of a Red River Delta province (Northern Vietnam) were interviewed, along with traders involved in pig transactions. Major differences in the trade structure were observed between the two communes. One commune had mainly transversal trades, i.e. between farms of equivalent sizes, whereas the other had pyramidal trades, i.e. from larger to smaller farms. Companies and large familial farrow-to-finish farms were likely to act as major sources of disease spread through pig sales, demonstrating their importance for disease control. Familial fattening farms with high pig purchases were at greater risk of disease introduction and should be targeted for disease detection as part of a risk-based surveillance. In contrast, many other familial farms were isolated or weakly connected to the swine trade network limiting their relevance for surveillance activities. However, some of these farms used boar hiring for breeding, increasing the risk of disease spread. Most familial farms were slaughtering pigs at the farm or in small local slaughterhouses, making the surveillance at the slaughterhouse inefficient. In terms of spatial distribution of the trades, the results suggested that Northern provinces were highly connected and showed some connection with Central and Southern provinces. These results are useful to develop risk-based surveillance protocols for disease detection in the swine familial sector, and to make recommendations for disease control. PMID:26040303

  14. Analysis of Swine Movements in a Province in Northern Vietnam and Application in the Design of Surveillance Strategies for Infectious Diseases.

    PubMed

    Baudon, E; Fournié, G; Hiep, D T; Pham, T T H; Duboz, R; Gély, M; Peiris, M; Cowling, B J; Ton, V D; Peyre, M

    2017-04-01

    While swine production is rapidly growing in South-East Asia, the structure of the swine industry and the dynamic of pig movements have not been well-studied. However, this knowledge is a prerequisite for understanding the dynamic of disease transmission in swine populations and designing cost-effective surveillance strategies for infectious diseases. In this study, we assessed the farming and trading practices in the Vietnamese swine familial farming sector, which accounts for most pigs in Vietnam, and for which disease surveillance is a major challenge. Farmers from two communes of a Red River Delta Province (northern Vietnam) were interviewed, along with traders involved in pig transactions. Major differences in the trade structure were observed between the two communes. One commune had mainly transversal trades, that is between farms of equivalent sizes, whereas the other had pyramidal trades, that is from larger to smaller farms. Companies and large familial farrow-to-finish farms were likely to act as major sources of disease spread through pig sales, demonstrating their importance for disease control. Familial fattening farms with high pig purchases were at greater risk of disease introduction and should be targeted for disease detection as part of a risk-based surveillance. In contrast, many other familial farms were isolated or weakly connected to the swine trade network limiting their relevance for surveillance activities. However, some of these farms used boar hiring for breeding, increasing the risk of disease spread. Most familial farms were slaughtering pigs at the farm or in small local slaughterhouses, making the surveillance at the slaughterhouse inefficient. In terms of spatial distribution of the trades, the results suggested that northern provinces were highly connected and showed some connection with central and southern provinces. These results are useful to develop risk-based surveillance protocols for disease detection in the swine familial sector and to make recommendations for disease control. © 2015 Blackwell Verlag GmbH.

  15. The Evolution of Centralized Operational Logistics

    DTIC Science & Technology

    2012-05-17

    John Kennedy Ohl, Supplying the Troops, General Somervell and American Logistics in WWII (DeKalb: Northern Illinois University Press, 1994), 60-61. 8...logistics support to the Military Assistance Command Vietnam. Although Admiral John H. Sides, the Commander in Chief, Pacific Fleet, did not want to...Delivering the Goods: The Art of Managing Your Supply Chain (Hoboken: John Wiley and Sons, Inc., 2002), 78. 55 Shrader, United States Army Logistics 1775

  16. Diversity of Anopheles mosquitoes in Binh Phuoc and Dak Nong Provinces of Vietnam and their relation to disease

    PubMed Central

    2014-01-01

    Background Human malaria is still a burden in Dak Nong and Binh Phuoc Provinces in south-central Vietnam that border Cambodia. Several Anopheles species that transmit human malarial Plasmodium may also transmit Wuchereria bancrofti, the nematode that causes Bancroftian lymphatic filariasis. The objective of this study was to investigate the role of Anopheles species in the transmission of these two pathogens in the two highly malaria endemic provinces of Vietnam. Methods Anopheles mosquitoes were collected in Dak Nong and Binh Phuoc Provinces in November and December of 2010 and 2011. Human landing catches, paired collections on human and buffalo, and resting captures were made with mouth aspirators. Collections were also made with light traps. Morphological and PCR-based methods were used to identify the species. Real-time PCR was used to detect Plasmodium species and W. bancrofti in individual mosquitoes. Results Twenty-four Anopheles species were identified among 797 captured mosquitoes. Anopheles dirus was found in both provinces and was the predominant species in Binh Phuoc Province; An. maculatus was the most prevalent species in Dak Nong Province. Anopheles minimus was collected only in Binh Phuoc Province. Some specimens of An. minimus and An. pampanai were misidentified based on morphology. Four specimens of An. scanloni were identified, and this is the first report of this species of the Dirus Complex in Vietnam. Two females, one An. dirus and one An. pampanai, collected in Binh Phuoc Province were infected with P. vivax, for an overall infection rate of 0.41% (2/486): 0.28% for An. dirus (1/361) and 20% for An. pampanai (1/5). No mosquitoes were found to be infected with P. falciparum, P. knowlesi or W. bancrofti in either province. Conclusion A diversity of Anopheles species occurs in Dak Nong and Binh Phuoc Provinces of Vietnam, several of which are considered to be actual and potential vectors of malarial protozoa and microfilariae. It is highly likely that two of the species, An. dirus and An. pampanai, are active in malaria transmission based on the detection of P. vivax in females of these species. This is the first report of An. scanloni in Vietnam. PMID:25008314

  17. Biogeographic distribution and metric dental variation of fossil and living orangutans (Pongo spp.).

    PubMed

    Tshen, Lim Tze

    2016-01-01

    The genus Pongo has a relatively richer Quaternary fossil record than those of the African great apes. Fossil materials are patchy in terms of anatomical parts represented, limited almost exclusively to isolated teeth, jaw and bone fragments. Fossil evidence indicates that the genus Pongo had a broadly continuous distribution across the southern part of the Indomalayan biogeographic region, ranging in time from Early Pleistocene to Holocene: southern China (77 fossil sites), Vietnam (15), Laos (6), Cambodia (2), Thailand (4), Peninsular Malaysia (6), Sumatra (4), Borneo (6) and Java (4). Within this distribution range, there are major geographical gaps with no known orangutan fossils, notably central and southern Indochina, central and southern Thailand, eastern Peninsular Malaysia, northern and southern Sumatra, and Kalimantan. The geological time and place of origin of the genus remain unresolved. Fossil orangutan assemblages usually show greater extent of dental metrical variation than those of modern-day populations. Such variability shown in prehistoric populations has partially contributed to confusion regarding past taxonomic diversity and systematic relationships among extinct and living forms. To date, no fewer than 14 distinct taxa have been identified and named for Pleistocene orangutans. Clear cases suggestive of predation by prehistoric human are few in number, and limited to terminal Pleistocene-Early Holocene sites in Borneo and a Late Pleistocene site in Vietnam.

  18. Oxalate Content of Taro Leaves Grown in Central Vietnam.

    PubMed

    Du Thanh, Hang; Phan Vu, Hai; Vu Van, Hai; Le Duc, Ngoan; Le Minh, Tuan; Savage, Geoffrey

    2017-01-01

    Leaves were harvested from four different cultivars of Colocasia esculenta and three cultivars of Alocasia odora that were growing on nine different farms in central Vietnam. The total, soluble and insoluble oxalate contents of the leaves were extracted and measured using HPLC chromatography. Total calcium determinations were also carried out on the same samples. The total oxalate content of the leaves ranged from 433.8 to 856.1 mg/100 g wet matter (WM) while the soluble oxalate ranged from 147.8 to 339.7 mg/100 g WM. The proportion of soluble oxalate ranged from 28% to 41% (overall mean 35%) of the total oxalate content of the leaves. The equivalent insoluble oxalate proportion ranged from 59% to 72% of the total (overall mean 65%). There was little difference between the Colocasia esculenta and Alocasia odora taro cultivars, although the total oxalate content was significantly higher in Alocasia odora cultivars. The overall mean total calcium content was 279.5 mg/100 WM and the percentage of insoluble calcium bound as calcium oxalate ranged from 31.7% to 57.3% of the total calcium content (overall mean 47.1%). The oxalate content in taro leaves is a major factor to consider when different cultivars of taro are recommended for human or animal consumption.

  19. Hygiene and sanitation promotion strategies among ethnic minority communities in northern Vietnam: a stakeholder analysis.

    PubMed

    Rheinländer, Thilde; Xuan, Le Thi Thanh; Hoat, Luu Ngoc; Dalsgaard, Anders; Konradsen, Flemming

    2012-10-01

    Effective rural hygiene and sanitation promotion (RHSP) is a major challenge for many low-income countries. This paper investigates strategies and stakeholders' roles and responsibilities in RHSP implementation in a multi-ethnic area of northern Vietnam, in order to identify lessons learned for future RHSP. A stakeholder analysis was performed, based on 49 semi-structured individual interviews and one group interview with stakeholders in RHSP in a northern province of Vietnam. Participants came from three sectors (agriculture, health and education), unions supported by the Vietnamese government and from four administrative levels (village, commune, district and province). The study villages represented four ethnic minority groups including lowland and highland communities. Stakeholders' roles, responsibilities and promotion methods were outlined, and implementation constraints and opportunities were identified and analysed using thematic content analysis. Effective RHSP in Vietnam is severely constrained despite supporting policies and a multi-sectorial and multi-level framework. Four main barriers for effective implementation of RHSP were identified: (1) weak inter-sectorial collaborations; (2) constraints faced by frontline promoters; (3) almost exclusive information-based and passive promotion methods applied; and (4) context unadjusted promotion strategies across ethnic groups, including a limited focus on socio-economic differences, language barriers and gender roles in the target groups. Highland communities were identified as least targeted and clearly in need of more intensive and effective RHSP. It is recommended that the Vietnamese government gives priority to increasing capacities of and collaboration among stakeholders implementing RHSP activities. This should focus on frontline promoters to perform effective behaviour change communication. It is also recommended to support more participatory and community-based initiatives, which can address the complex socio-economic and cultural determinants of health in multi-ethnic population groups. These lessons learned can improve future RHSP in Vietnam and are also of relevance for health promotion in other minority population groups in the region and globally.

  20. Decisive Force -- The New American Way of War

    DTIC Science & Technology

    1994-03-02

    be avoided, but since the nature of war, and democracy, mixes political factors and military nsiderions, the military is and must be politically...objective analysis to the war, and have come to different conclusions. Thus, the legacy of ’playing to win* in the professional culture appears mixed ...Vietnam remains mixed when it comes to how force should be applied. The veterans of Vietnam claim the war supports the absolutist position about using

  1. Phylogenetic analysis and survey of Apis cerana strain of Sacbrood virus (AcSBV) in Taiwan suggests a recent introduction.

    PubMed

    Huang, Wei-Fone; Mehmood, Shahid; Huang, Shaokang; Chen, Yue-Wen; Ko, Chong-Yu; Su, Songkun

    2017-06-01

    The Sacbrood virus (SBV) is widely distributed in European honey bees, Apis mellifera. AcSBV, a distinct SBV strain in Asian honey bees (A. cerana) causes larva death before pupation and often depopulates colonies, leading to collapse. It is the most severe disease in A. cerana beekeeping. AcSBV infects A. cerana in most natural habitats, yet occurrences were not reported in Taiwan before 2015 and were not a concern for local beekeepers. However, in 2016, A. cerana beekeepers in central Taiwan reported SBV-like symptoms. We screened samples of larvae using RT-PCR and surveyed asymptomatic apiaries in north Taiwan. Phylogenetic analyses suggested that AcSBV isolates from central Taiwan were introduced; all isolates had high similarity in sequences to AcSBV genomes identified in mainland China, Vietnam, and Korea and distinct differences to SBV sequence identified in Taiwan. The overall prevalence in symptomatic colonies was low. No latent infections were detected in asymptomatic colonies. The AcSBV epizootic may not yet have reached its highest potential. Copyright © 2017 Elsevier Inc. All rights reserved.

  2. Strategy in the Vietnam War: Western Concepts, Eastern Conflict and the Roots of Failure.

    ERIC Educational Resources Information Center

    Weland, James

    1990-01-01

    Critiques U.S. military assumptions concerning the war in Vietnam. Discusses the North Vietnamese strategic approach to gaining control of South Vietnam. Traces the history of the Vietnam War, analyzing specific U.S. military operations in Vietnam and reasons for their failure. Contends that U.S. strategic ethnocentrism lead to defeat in Vietnam.…

  3. 31 CFR 500.554 - Gifts of North Korean, North Vietnamese, Cambodian, or South Vietnamese origin.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Korea, North Viet-Nam, Cambodia, or South Viet-Nam. (b) Specific licenses are issued for the importation directly from North Korea, North Viet-Nam, Cambodia, or South Viet-Nam: (1) Of goods which are claimed by... acquired in North Korea, North Viet-Nam, Cambodia, or South Viet-Nam as a bona fide gift, subject to the...

  4. Antimicrobial-resistant Pseudomonas aeruginosa and Acinetobacter baumannii From Patients With Hospital-acquired or Ventilator-associated Pneumonia in Vietnam.

    PubMed

    Biedenbach, Douglas J; Giao, Phan Trong; Hung Van, Pham; Su Minh Tuyet, Nguyen; Thi Thanh Nga, Tran; Phuong, Doan Mai; Vu Trung, Nguyen; Badal, Robert E

    2016-09-01

    Multidrug-resistant bacterial pathogens are becoming a significant problem worldwide. Acinetobacter baumannii and Pseudomonas aeruginosa are problematic multidrug-resistant pathogens. This multicenter study in Vietnam determined the level of resistance to antimicrobial agents used to treat A baumannii and P aeruginosa infections in this country. Five medical centers in Vietnam provided 529 P aeruginosa and 971 Acinetobacter species (904 A baumannii) isolates from patients with hospital-acquired or ventilator-associated pneumonia from 2012 to 2014. A central laboratory verified identification of the isolates and performed susceptibility testing using Clinical and Laboratory Standards Institute methods. Resistance to cephalosporins, β-lactam/β-lactamase inhibitors, carbapenems, and fluoroquinolones was >90% against A baumannii. Aminoglycosides had only slightly better activity, with amikacin resistance >80%. Only colistin (MIC90, ≤0.25 mg/L) and tigecycline (MIC90, 4 mg/L) had appreciable activity against A baumannii. Similar activity was observed among the β-lactams tested against P aeruginosa. Cefepime demonstrated the highest activity (60.1% susceptible), which was similar to doripenem (58.6% susceptible), the most active carbapenem tested. Amikacin was the most active aminoglycoside tested against P aeruginosa, with susceptibility of 81.7% compared with tobramycin (58.0%) and gentamicin (56.5%). Fluoroquinolones had limited activity against P aeruginosa with susceptibility to ciprofloxacin (55.0%). All P aeruginosa isolates had colistin MIC values ≤2 mg/L. The data from this 3-year longitudinal study in Vietnam demonstrate that 2 of the most common nonfermentative gram-negative pathogens associated with hospital-acquired and ventilator-associated pneumonia are significantly resistant to most of the available treatment options and require combination therapies unless new antimicrobial agents become available. Copyright © 2016. Published by Elsevier Inc.

  5. Significant influences of global mean temperature and ENSO on extreme rainfall over Southeast Asia

    NASA Astrophysics Data System (ADS)

    Villafuerte, Marcelino, II; Matsumoto, Jun

    2014-05-01

    Along with the increasing concerns on the consequences of global warming, and the accumulating records of disaster related to heavy rainfall events in Southeast Asia, this study investigates whether a direct link can be detected between the rising global mean temperature, as well as the El Niño-Southern Oscillation (ENSO), and extreme rainfall over the region. The maximum likelihood modeling that allows incorporating covariates on the location parameter of the generalized extreme value (GEV) distribution is employed. The GEV model is fitted to annual and seasonal rainfall extremes, which were taken from a high-resolution gauge-based gridded daily precipitation data covering a span of 57 years (1951-2007). Nonstationarities in extreme rainfall are detected over the central parts of Indochina Peninsula, eastern coasts of central Vietnam, northwest of the Sumatra Island, inland portions of Borneo Island, and on the northeastern and southwestern coasts of the Philippines. These nonstationarities in extreme rainfall are directly linked to near-surface global mean temperature and ENSO. In particular, the study reveals that a kelvin increase in global mean temperature anomaly can lead to an increase of 30% to even greater than 45% in annual maximum 1-day rainfall, which were observed pronouncedly over central Vietnam, southern coast of Myanmar, northwestern sections of Thailand, northwestern tip of Sumatra, central portions of Malaysia, and the Visayas island in central Philippines. Furthermore, a pronounced ENSO influence manifested on the seasonal maximum 1-day rainfall; a northward progression of 10%-15% drier condition over Southeast Asia as the El Niño develops from summer to winter is revealed. It is important therefore, to consider the results obtained here for water resources management as well as for adaptation planning to minimize the potential adverse impact of global warming, particularly on extreme rainfall and its associated flood risk over the region. Acknowledgment: This study is supported by the Tokyo Metropolitan Government through its AHRF program.

  6. Inequity in maternal health care utilization in Vietnam

    PubMed Central

    2012-01-01

    Introduction Vietnam has succeeded in reducing maternal mortality in the last decades. Analysis of survey data however indicate that large inequities exist between different segments of the population. We have analyzed utilization of antenatal care and skilled birth attendance among Vietnamese women of reproductive age in relation to social determinants with the aim to reveal health inequities and identify disadvantaged groups. Method Data on maternal health care utilization and social determinants were derived from the Multiple Indicator Cluster Survey (MICS) conducted in Vietnam in 2006, and analyzed through stratified logistic regressions and g-computation. Results Inequities in maternal health care utilization persist in Vietnam. Ethnicity, household wealth and education were all significantly associated with antenatal care coverage and skilled birth attendance, individually and in synergy. Although the structural determinants included in this study were closely related to each other, analysis revealed a significant effect of ethnicity over and above wealth and education. Within the group of mothers from poor households ethnic minority mothers were at a three-fold risk of not attending any antenatal care (OR 3.06, 95% CI 1.27–7.41) and six times more likely not to deliver with skilled birth attendance (OR 6.27, 95% CI 2.37–16.6). The association between ethnicity and lack of antenatal care and skilled birth attendance was even stronger within the non-poor group. Conclusions In spite of policies to out rule health inequities, ethnic minority women constitute a disadvantaged group in Vietnam. More efficient ways to target disadvantaged groups, taking synergy effects between multiple social determinants into consideration, are needed in order to assure safe motherhood for all. PMID:22587740

  7. Psychometric and cognitive validation of a social capital measurement tool in Peru and Vietnam.

    PubMed

    De Silva, Mary J; Harpham, Trudy; Tuan, Tran; Bartolini, Rosario; Penny, Mary E; Huttly, Sharon R

    2006-02-01

    Social capital is a relatively new concept which has attracted significant attention in recent years. No consensus has yet been reached on how to measure social capital, resulting in a large number of different tools available. While psychometric validation methods such as factor analysis have been used by a few studies to assess the internal validity of some tools, these techniques rely on data already collected by the tool and are therefore not capable of eliciting what the questions are actually measuring. The Young Lives (YL) study includes quantitative measures of caregiver's social capital in four countries (Vietnam, Peru, Ethiopia, and India) using a short version of the Adapted Social Capital Assessment Tool (SASCAT). A range of different psychometric methods including factor analysis were used to evaluate the construct validity of SASCAT in Peru and Vietnam. In addition, qualitative cognitive interviews with 20 respondents from Peru and 24 respondents from Vietnam were conducted to explore what each question is actually measuring. We argue that psychometric validation techniques alone are not sufficient to adequately validate multi-faceted social capital tools for use in different cultural settings. Psychometric techniques show SASCAT to be a valid tool reflecting known constructs and displaying postulated links with other variables. However, results from the cognitive interviews present a more mixed picture with some questions being appropriately interpreted by respondents, and others displaying significant differences between what the researchers intended them to measure and what they actually do. Using evidence from a range of methods of assessing validity has enabled the modification of an existing instrument into a valid and low cost tool designed to measure social capital within larger surveys in Peru and Vietnam, with the potential for use in other developing countries following local piloting and cultural adaptation of the tool.

  8. Retrospective analysis of antiretroviral therapy uptake and retention of male clients receiving methadone maintenance therapy in two provinces in Vietnam: potential synergy of the two therapies.

    PubMed

    Pham, Linh Thi Thuy; Kitamura, Akiko; Do, Hoa Mai; Lai, Kim Anh; Le, Nhan Tuan; Nguyen, Van Thi Thuy; Kato, Masaya

    2017-02-17

    Vietnam has a concentrated HIV epidemic with injection drug use being the dominant mode of HIV transmission. Vietnam has rapidly expanded antiretroviral therapy (ART) and methadone maintenance therapy (MMT). This study aims to analyze ART uptake and retention among male clients receiving MMT in Vietnam in the early phase of the MMT program. The male clients (age ≥18) who were newly enrolled in care or started ART at two HIV clinics in Hanoi (2009 to 2011) and three HIV clinics in Can Tho (2010 to 2012) were included for the analysis. The CD4 lymphocyte count at HIV care enrollment and ART initiation and retention on ART were retrospectively analyzed. The values of those receiving MMT were compared with the values of two groups: those in whom injection drug use (IDU) status was documented, but were not receiving MMT, and all male clients not receiving MMT. To analyze retention, survival analysis with log rank test and Cox proportional hazard model was used. During the study period, 663 adult men were newly enrolled in HIV care (237 had IDU status documented) and 456 initiated ART (167 had IDU status documented). Among those who initiated ART, 28 were receiving MMT. At care enrolment, those receiving MMT had a median CD4 count of 230 (IQR 57-308) cells/mm 3 , while men self-reporting IDU and not receiving MMT and all men not receiving MMT had a median CD4 count of 158 (IQR 50-370) cells/mm 3 and 143 (IQR 35-366) cells/mm 3 , respectively. At ART initiation, men receiving MMT had significantly higher CD4 count with median at 203 (IQR 64-290) cells/mm 3 than men self-reporting IDU and not receiving MMT (80, IQR 40-220, cells/mm 3 , p = 0.038) and all men not receiving MMT (76, IQR 20-199, cells/mm 3 , p = 0.009). Those receiving MMT had a significantly higher retention rate than those self-reporting IDU but not receiving MMT (hazard ratio = 0.18, p = 0.019) and men not receiving MMT (hazard ratio = 0.20, p = 0.041). Our analysis suggests that men receiving MMT in Vietnam are achieving relatively early uptake and high retention rates on ART. The findings support potential benefits of integrating MMT and ART services in Vietnam.

  9. The United States and Vietnam Relationship: Benefits and Challenges for Vietnam

    DTIC Science & Technology

    2016-06-10

    the current stage in their bilateral relations. The U.S.-Vietnam relationship has been increasingly cemented in the context of the contemporary...reach the current stage in their bilateral relations. The U.S.-Vietnam relationship has been increasingly cemented in the context of the contemporary...Major Exports to Vietnam aircraft, mining equipment, electronic machinery, steel wire, raw cotton, plastics Source: Mark E. Manyin, The Vietnam

  10. Operational Social Influence in the Vietnam War: An Analysis of Influence Tactics Used by the U.S. Marine’s Combined Action Program and the Viet Cong in South Vietnam

    DTIC Science & Technology

    2011-03-01

    university students and girls holding leis of flowers , a gesture set up by the mayor of Da Nang.48 By the end of 1965, 38,000 additional Marines were...to the Marines; in fact very similar strategies were used during the Banana Wars (Haiti 1915–1934, Nicaragua 1926–1933, and Santo Domingo 1916–1923

  11. Analysis of antibiotic multi-resistant bacteria and resistance genes in the effluent of an intensive shrimp farm (Long An, Vietnam).

    PubMed

    Pham, Thi Thu Hang; Rossi, Pierre; Dinh, Hoang Dang Khoa; Pham, Ngoc Tu Anh; Tran, Phuong Anh; Ho, To Thi Khai Mui; Dinh, Quoc Tuc; De Alencastro, Luiz Felippe

    2018-05-15

    In Vietnam, intensive shrimp farms heavily rely on a wide variety of antibiotics (ABs) to treat animals or prevent disease outbreak. Potential for the emergence of multi-resistant bacteria is high, with the concomitant contamination of adjacent natural aquatic habitats used for irrigation and drinking water, impairing in turn human health system. In the present study, quantification of AB multi-resistant bacteria was carried out in water and sediment samples from effluent channels connecting a shrimp farming area to the Vam Co River (Long An Province, Vietnam). Bacterial strains, e.g. Klebsiella pneumoniae and Aeromonas hydrophila, showing multi-resistance traits were isolated. Molecular biology analysis showed that these strains possessed from four to seven different AB resistance genes (ARGs) (e.g. sul1, sul2, qnrA, ermB, tetA, aac(6)lb, dfrA1, dfr12, dfrA5), conferring multidrug resistance capacity. Sequencing of plasmids present within these multi-resistant strains led to the identification of a total of forty-one resistance genes, targeting nine AB groups. qPCR analysis on the sul2 gene revealed the presence of high copy numbers in the effluent channel connecting to the Vam Co River. The results of the present study clearly indicated that multi-resistant bacteria present in intensive shrimp cultures may disseminate in the natural environment. This study offered a first insight in the impact of plasmid-born ARGs and the related pathogenic bacteria that could emerged due to inappropriate antibiotic utilization in South Vietnam. Copyright © 2018 Elsevier Ltd. All rights reserved.

  12. Mobile devices for community-based REDD+ monitoring: a case study for Central Vietnam.

    PubMed

    Pratihast, Arun Kumar; Herold, Martin; Avitabile, Valerio; de Bruin, Sytze; Bartholomeus, Harm; Souza, Carlos M; Ribbe, Lars

    2012-12-20

    Monitoring tropical deforestation and forest degradation is one of the central elements for the Reduced Emissions from Deforestation and Forest Degradation in developing countries (REDD+) scheme. Current arrangements for monitoring are based on remote sensing and field measurements. Since monitoring is the periodic process of assessing forest stands properties with respect to reference data, adopting the current REDD+ requirements for implementing monitoring at national levels is a challenging task. Recently, the advancement in Information and Communications Technologies (ICT) and mobile devices has enabled local communities to monitor their forest in a basic resource setting such as no or slow internet connection link, limited power supply, etc. Despite the potential, the use of mobile device system for community based monitoring (CBM) is still exceptional and faces implementation challenges. This paper presents an integrated data collection system based on mobile devices that streamlines the community-based forest monitoring data collection, transmission and visualization process. This paper also assesses the accuracy and reliability of CBM data and proposes a way to fit them into national REDD+ Monitoring, Reporting and Verification (MRV) scheme. The system performance is evaluated at Tra Bui commune, Quang Nam province, Central Vietnam, where forest carbon and change activities were tracked. The results show that the local community is able to provide data with accuracy comparable to expert measurements (index of agreement greater than 0.88), but against lower costs. Furthermore, the results confirm that communities are more effective to monitor small scale forest degradation due to subsistence fuel wood collection and selective logging, than high resolution remote sensing SPOT imagery.

  13. Consonants, vowels and tones across Vietnamese dialects.

    PubMed

    PhȦm, Ben; McLeod, Sharynne

    2016-04-01

    Vietnamese is spoken by over 89 million people in Vietnam and it is one of the most commonly spoken languages other than English in the US, Canada and Australia. This study defines between one and nine different dialects of Vietnamese spoken in Vietnam. In Vietnamese schools, children learn Standard Vietnamese which is based on the northern dialect; however, if they live in other regions they may speak a different dialect at home. This paper describes the differences between the consonants, semivowels, vowels, diphthongs and tones for four dialects: Standard, northern, central and southern Vietnamese. The number and type of initial consonants differs per dialect (i.e. Standard = 23, northern = 20, central = 23, southern = 21). For example, the letter "r" is pronounced in the Standard and central dialects as the retroflex /ʐ/, northern dialect as the voiced alveolar fricative /z/ or the trilled /r/ and in the southern dialect as the voiced velar fricative /ɣ/. Additionally, the letter "v" is pronounced in the Standard, northern and central dialects as the voiced bilabial fricative /v/, the southern dialect as the voiced palatal approximant /j/ and in the lower northern dialect (Ninh Binh) as the voiceless bilabial fricative /f/. Similarly, the number of final consonants differs per dialect (i.e. Standard = 6, northern = 10, central = 10, southern = 8). Finally, the number and type of tones differs per dialect (i.e. Standard = 6, northern = 6, central = 5, southern = 5). Understanding differences between Vietnamese dialects is important so that speech-language pathologists and educators provide appropriate services to people who speak Vietnamese.

  14. Mobile Devices for Community-Based REDD+ Monitoring: A Case Study for Central Vietnam

    PubMed Central

    Pratihast, Arun Kumar; Herold, Martin; Avitabile, Valerio; de Bruin, Sytze; Bartholomeus, Harm; Souza, Carlos M.; Ribbe, Lars

    2013-01-01

    Monitoring tropical deforestation and forest degradation is one of the central elements for the Reduced Emissions from Deforestation and Forest Degradation in developing countries (REDD+) scheme. Current arrangements for monitoring are based on remote sensing and field measurements. Since monitoring is the periodic process of assessing forest stands properties with respect to reference data, adopting the current REDD+ requirements for implementing monitoring at national levels is a challenging task. Recently, the advancement in Information and Communications Technologies (ICT) and mobile devices has enabled local communities to monitor their forest in a basic resource setting such as no or slow internet connection link, limited power supply, etc. Despite the potential, the use of mobile device system for community based monitoring (CBM) is still exceptional and faces implementation challenges. This paper presents an integrated data collection system based on mobile devices that streamlines the community-based forest monitoring data collection, transmission and visualization process. This paper also assesses the accuracy and reliability of CBM data and proposes a way to fit them into national REDD+ Monitoring, Reporting and Verification (MRV) scheme. The system performance is evaluated at Tra Bui commune, Quang Nam province, Central Vietnam, where forest carbon and change activities were tracked. The results show that the local community is able to provide data with accuracy comparable to expert measurements (index of agreement greater than 0.88), but against lower costs. Furthermore, the results confirm that communities are more effective to monitor small scale forest degradation due to subsistence fuel wood collection and selective logging, than high resolution remote sensing SPOT imagery. PMID:23344371

  15. Global health risks and cosmopolitisation: from emergence to interference.

    PubMed

    Figuié, Muriel

    2013-02-01

    According to Beck's 'World at Risk' theory, global risks push nations towards a cosmopolitisation of their health policy and open opportunities for a democratic turn. This article provides an empirical analysis of Beck's theory, based on the experience of Vietnamese authorities from 2003 to 2007 in managing the emerging avian flu virus. It shows how Vietnam's framing of avian flu has shifted, under the pressure from international organisations and the US administration, from an epizootic and zoonotic risk (or a classic risk) to a pandemic threat (or a late modern risk). Vietnam's response was part of its overall strategy to join the World Trade Organization and it was limited by Vietnam's defence of its sovereignty. This strategy has been successful for Vietnam but has limited the possibility of cosmopolitan and democratic transformations. The case study highlights the constructed dimension of risks of late modernity and their possible instrumentalisation: it minimises the role of a community of fear relative to a community of trade. © 2013 The Author. Sociology of Health & Illness © 2013 Foundation for the Sociology of Health & Illness/Blackwell Publishing Ltd.

  16. 45 CFR 506.10 - “Vietnam conflict” defined.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... § 506.10 “Vietnam conflict” defined. Vietnam conflict refers to the period beginning February 28, 1961... “Vietnam conflict” for purposes of payment of interest on missing military service members' deposits in the... ending date for the Vietnam conflict for purposes of determining eligibility for compensation under 50 U...

  17. 38 CFR 3.313 - Claims based on service in Vietnam.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... in Vietnam. 3.313 Section 3.313 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS... Evaluations; Service Connection § 3.313 Claims based on service in Vietnam. (a) Service in Vietnam. Service in Vietnam includes service in the waters offshore, or service in other locations if the conditions of...

  18. 38 CFR 3.313 - Claims based on service in Vietnam.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... in Vietnam. 3.313 Section 3.313 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS... Evaluations; Service Connection § 3.313 Claims based on service in Vietnam. (a) Service in Vietnam. Service in Vietnam includes service in the waters offshore, or service in other locations if the conditions of...

  19. 38 CFR 3.313 - Claims based on service in Vietnam.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... in Vietnam. 3.313 Section 3.313 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS... Evaluations; Service Connection § 3.313 Claims based on service in Vietnam. (a) Service in Vietnam. Service in Vietnam includes service in the waters offshore, or service in other locations if the conditions of...

  20. 38 CFR 3.313 - Claims based on service in Vietnam.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... in Vietnam. 3.313 Section 3.313 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS... Evaluations; Service Connection § 3.313 Claims based on service in Vietnam. (a) Service in Vietnam. Service in Vietnam includes service in the waters offshore, or service in other locations if the conditions of...

  1. 77 FR 60675 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Initiation of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-04

    ... From the Socialist Republic of Vietnam: Initiation of Antidumping Duty New Shipper Review AGENCY... fillets (``fish'') from the Socialist Republic of Vietnam (``Vietnam''). The Department has determined...: 202-482-0238. SUPPLEMENTARY INFORMATION: Background The antidumping duty order on fish from Vietnam...

  2. 38 CFR 3.313 - Claims based on service in Vietnam.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... in Vietnam. 3.313 Section 3.313 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS... Evaluations; Service Connection § 3.313 Claims based on service in Vietnam. (a) Service in Vietnam. Service in Vietnam includes service in the waters offshore, or service in other locations if the conditions of...

  3. Designing a community engagement framework for a new dengue control method: a case study from central Vietnam.

    PubMed

    McNaughton, Darlene; Duong, Thi Thu Huong

    2014-05-01

    The Wolbachia strategy aims to manipulate mosquito populations to make them incapable of transmitting dengue viruses between people. To test its efficacy, this strategy requires field trials. Public consultation and engagement are recognized as critical to the future success of these programs, but questions remain regarding how to proceed. This paper reports on a case study where social research was used to design a community engagement framework for a new dengue control method, at a potential release site in central Vietnam. The approach described here, draws on an anthropological methodology and uses both qualitative and quantitative methods to design an engagement framework tailored to the concerns, expectations, and socio-political setting of a potential trial release site for Wolbachia-infected Aedes aegypti mosquitoes. The process, research activities, key findings and how these were responded to are described. Safety of the method to humans and the environment was the most common and significant concern, followed by efficacy and impact on local lives. Residents expected to be fully informed and engaged about the science, the project, its safety, the release and who would be responsible should something go wrong. They desired a level of engagement that included regular updates and authorization from government and at least one member of every household at the release site. Results demonstrate that social research can provide important and reliable insights into public concerns and expectations at a potential release site, as well as guidance on how these might be addressed. Findings support the argument that using research to develop more targeted, engagement frameworks can lead to more sensitive, thorough, culturally comprehensible and therefore ethical consultation processes. This approach has now been used successfully to seek public input and eventually support for releases Wolbachia-infected mosquitoes, in two different international settings--Australia and Vietnam.

  4. Cost-Effectiveness of Long-Lasting Insecticide-Treated Hammocks in Preventing Malaria in South-Central Vietnam

    PubMed Central

    Morel, Chantal M.; Thang, Ngo Duc; Erhart, Annette; Xa, Nguyen Xuan; Peeters Grietens, Koen; Xuan Hung, Le; Thuan, Le Khan; Van Ky, Pham; Hung, Nguyen Manh; Coosemans, Marc; D'Alessandro, Umberto; Mills, Anne

    2013-01-01

    Background Despite much success in reducing the burden of malaria in Vietnam, pockets of malaria persist and eliminating them remains an important development goal. In central Vietnam, insecticide-treated hammocks have recently been introduced to help counter the disease in the highly forested, mountainous areas, where other measures have so far been unsuccessful. This study assesses the cost-effectiveness of using long-lasting insecticide-treated hammocks in this area. Methods and Findings This cost-effectiveness study was run alongside a randomized control trial testing the efficacy of the long-lasting insecticide-treated hammocks. Data were collected through an exit survey, a household survey, expenditure records and key informant interviews. The study estimates that under normal (non-trial) conditions the total net societal cost per malaria episode averted in using long-lasting insecticide-treated hammocks in this area was 126 USD. Cost per hammock, including insecticidal netting, sewing, transport, and distribution was found to be approximately 11.76 USD per hammock. Average savings per episode averted were estimated to be $14.60 USD for the health system and 14.37 USD for households (including both direct and indirect cost savings). The study estimates that the annual financial outlay required of government to implement this type of programme to be 3.40 USD per person covered per year. Conclusion The study finds that the use of a hammock intervention could represent good value for money to help prevent malaria in more remote areas, where traditional control measures such as insecticide-treated bednets and indoor residual spraying are insufficient or inappropriate to control malaria. However, the life span of the hammock–the number of years over which it effectively deters mosquitoes–has a significant impact on the cost-effectiveness of the intervention and study results should be interpreted in light of the evidence on effectiveness gathered in the years to come. PMID:23536790

  5. Designing a Community Engagement Framework for a New Dengue Control Method: A Case Study from Central Vietnam

    PubMed Central

    McNaughton, Darlene; Duong, Thi Thu Huong

    2014-01-01

    Background The Wolbachia strategy aims to manipulate mosquito populations to make them incapable of transmitting dengue viruses between people. To test its efficacy, this strategy requires field trials. Public consultation and engagement are recognized as critical to the future success of these programs, but questions remain regarding how to proceed. This paper reports on a case study where social research was used to design a community engagement framework for a new dengue control method, at a potential release site in central Vietnam. Methodology/Principal Findings The approach described here, draws on an anthropological methodology and uses both qualitative and quantitative methods to design an engagement framework tailored to the concerns, expectations, and socio-political setting of a potential trial release site for Wolbachia-infected Aedes aegypti mosquitoes. The process, research activities, key findings and how these were responded to are described. Safety of the method to humans and the environment was the most common and significant concern, followed by efficacy and impact on local lives. Residents expected to be fully informed and engaged about the science, the project, its safety, the release and who would be responsible should something go wrong. They desired a level of engagement that included regular updates and authorization from government and at least one member of every household at the release site. Conclusions/Significance Results demonstrate that social research can provide important and reliable insights into public concerns and expectations at a potential release site, as well as guidance on how these might be addressed. Findings support the argument that using research to develop more targeted, engagement frameworks can lead to more sensitive, thorough, culturally comprehensible and therefore ethical consultation processes. This approach has now been used successfully to seek public input and eventually support for releases Wolbachia-infected mosquitoes, in two different international settings - Australia and Vietnam. PMID:24853391

  6. The Health Policy Process in Vietnam: Going Beyond Kingdon’s Multiple Streams Theory

    PubMed Central

    Kane, Sumit

    2016-01-01

    This commentary reflects upon the article along three broad lines. It reflects on the theoretical choices and omissions, particularly highlighting why it is important to adapt the multiple streams framework (MSF) when applying it in a socio-political context like Vietnam’s. The commentary also reflects upon the analytical threads tackled by Ha et al; for instance, it highlights the opportunities offered by, and raises questions about the centrality of the Policy Entrepreneur in getting the policy onto the political agenda and in pushing it through. The commentary also dwells on the implications of the article for development aid policies and practices. Throughout, the commentary signposts possible themes for Ha et al to consider for further analysis, and more generally, for future research using Kingdon’s multiple streams theory. PMID:27694671

  7. New marine data from Vietnam Margin limit the amount of extrusion of Indochina during the opening of the South China Sea

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Huchon, P.; Le Pichon, X.; Rangin, C.

    1994-07-01

    A total of 9300 km of high resolution, wide coverage multibeam (Simrad EM12) bathymetric data have been acquired offshore Vietnam during the Ponaga cruise of the R/V L'Atalante in May 1993. Gravity and magnetic measurements, 6-channel seismic data, as well as 6 dredges also have been obtained. East of central Vietnam, the margin displays northeast-southwest tectonic structures typical of a passive margin. The depth of the basement of the Nha Trang basin suggests that it could be of oceanic nature, with a 20 to 30 Ma age compatible with the age of the South China Sea oceanic crust located furthermore » east. Southeast of South Vietnam, the authors identified the western tip of the fossil axis of the South China Sea. It constitutes a propagating ridge into a highly stretched continental crust, partly intruded by volcanics. East of 110[degrees]30[prime]E, tilted blocks are symmetric with respect to the oceanic axis, whereas west of 110[degrees]30[prime]E they are mostly tilted toward the south, which suggests the occurrence a large listric normal fault associated with a large amount of extension. The normal faults bend progressively to a more northerly direction when approaching the north-south scarp that bounds the Conson basin. This geometry is compatible with a right-lateral motion, and the normal faults associated with the oceanic propagator suggest that the dextral motion is synchronous with at least the last phase of spreading in the South China Sea (23-16 Ma). Since recent offshore oil data have established that the prolongation of the Red River fault within the Gulf of Tonkin was affected by left-lateral motion from the Oligocene to the upper Miocene, the results suggest that the change from left-lateral motion in the Gulf of Tonkin to right-lateral motion along the Vietnam margin occurs because the South China Sea basin opens more rapidly than the extrusion of Indochina. Thus, the total amount of extrusion of Indochina probably does not exceed 100 or 200 km.« less

  8. Analysis the Transient Process of Wind Power Resources when there are Voltage Sags in Distribution Grid

    NASA Astrophysics Data System (ADS)

    Nhu Y, Do

    2018-03-01

    Vietnam has many advantages of wind power resources. Time by time there are more and more capacity as well as number of wind power project in Vietnam. Corresponding to the increase of wind power emitted into national grid, It is necessary to research and analyze in order to ensure the safety and reliability of win power connection. In national distribution grid, voltage sag occurs regularly, it can strongly influence on the operation of wind power. The most serious consequence is the disconnection. The paper presents the analysis of distribution grid's transient process when voltage is sagged. Base on the analysis, the solutions will be recommended to improve the reliability and effective operation of wind power resources.

  9. Systematic Review on Irrational Use of Medicines in China and Vietnam

    PubMed Central

    Mao, Wenhui; Vu, Huyen; Xie, Zening; Chen, Wen; Tang, Shenglan

    2015-01-01

    Background Irrational use of medicines has been an issue concerned all over the world and the outlooks in developing countries are more severe. This study aimed to assess the different patterns of irrational use of medicines and its influential factors in China and Vietnam. Methods A systematic review was performed on both published and grey literatures in English, Chinese and Vietnamese languages between 1993 and 2013 based on the WHO framework. Quality assessment was conducted on the basis of the Critical Appraisal Skills Programme. Key indicators were analyzed to compare the irrational use of medicines in two countries. Results A total of 67 published works about China and 29 about Vietnam were included, the majority of which were cross-sectional prescription studies in both China and Vietnam. Irrational use of medicines was found in both the countries but issues with polypharmacy as well as overuse of antibiotics were more severe in Vietnam while overuse of injections was unique to China. Various patterns of irrational use were also indicated between urban and rural areas, and among different levels of hospitals. Rarely does literature focus on the analysis of influential factors of irrational use of medicines. While lack of proper knowledge from both providers and patients were the most recognized influential factors in both countries, economic incentives from pharmaceutical companies in China, and weak control and regulation over prescriptions in Vietnam were the main factors attributed to this issue. Conclusion Severe irrational use of medicines has been abundantly evidenced in both China and Vietnam, highlighting the importance of policy interventions on the issue. However, limited evidence on the appropriateness or its compliance (conformity) to guidelines of prescription has been found. In addition, convincing evidence on the underlying explanation of this issue is lacking, although economic incentives, health insurance coverage, and knowledge of service providers and users have been implied to be factors influencing irrational drug use. PMID:25793497

  10. De novo establishment and cost-effectiveness of Papanicolaou cytology screening services in the Socialist Republic of Vietnam.

    PubMed

    Suba, E J; Nguyen, C H; Nguyen, B D; Raab, S S

    2001-03-01

    Cervical carcinoma is the leading cause of cancer-related death among women in the developing world. The absence of cervical screening in Vietnam and other developing countries is due in large part to the perceived expense of implementing Papanicolaou cytology screening services, although, to the authors' knowledge, the cost-effectiveness of establishing such services has never been studied in a developing country. Using decision analytic methods, the authors assessed cost-effectiveness of Pap screening from a societal perspective in Vietnam, the world's 9th most populous developing country (estimated 1999 population, 79 million). Outcomes measured included life expectancy, cervical carcinoma incidence, cost per woman, and cost-effectiveness. Total costs to establish a nationwide 5-year interval Pap screening program in Vietnam will average less than $148,400 annually during the 10-year time period assumed necessary to develop the program and may be considerably lower if only high risk geographic areas are targeted. Maintenance costs will average less than $0.092 annually per woman in the target screening population. Assuming 70% program participation, cervical carcinoma incidence will decrease from 26 in 100,000 to 14.8 in 100,000, and cost-effectiveness will be $725 per discounted life-year. Several assumptions used in this analysis constitute biases against the effectiveness of Pap screening, which in reality may be significantly more cost-effective than reported here. Contrary to widespread belief, Pap screening in developing countries such as Vietnam is extraordinarily inexpensive and appears to be cost-effective. Because prospects are uncertain regarding useful alternatives to the Pap test, the evidence-based argument for establishing conventional Pap screening services in developing countries such as Vietnam is compelling. Population-based conventional Pap screening services have been established de novo in Vietnam and are now operational. Copyright 2001 American Cancer Society.

  11. The Future of Patriotism: The War Film, The Cinema Industry, and the Vietnam Veteran Movement.

    ERIC Educational Resources Information Center

    Camacho, Paul

    1990-01-01

    Examines the media's effect on attitudes about Vietnam veterans. Discusses the relationship between media and culture. Analyzes the film industry's ideological battle over Vietnam. Critiques the media's treatment of the Vietnam experience, and considers the impact of media portrayals of the war on the Vietnam Veteran's movement. (RW)

  12. 75 FR 15416 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Initiation of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... From the Socialist Republic of Vietnam: Initiation of Antidumping Duty New Shipper Reviews AGENCY... fillets'') from the Socialist Republic of Vietnam (``Vietnam''), received on February 19, 2010, and... order on fish fillets from Vietnam was published in the Federal Register on August 12, 2003. See Notice...

  13. 78 FR 72635 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Rescission of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-03

    ... Shrimp From the Socialist Republic of Vietnam: Rescission of Antidumping Duty New Shipper Review AGENCY... certain frozen warmwater shrimp from the Socialist Republic of Vietnam (``Vietnam'') covering the period... respect to Goldenquality. \\1\\ See Certain Frozen Warmwater Shrimp from the Socialist Republic of Vietnam...

  14. 76 FR 16384 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Initiation of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-23

    ... Shrimp From the Socialist Republic of Vietnam: Initiation of Antidumping Duty New Shipper Review AGENCY... (``shrimp'') from the Socialist Republic of Vietnam (``Vietnam''), received on February 28, 2011, meets the... INFORMATION: Background The notice announcing the antidumping duty order on shrimp from Vietnam was published...

  15. 78 FR 57352 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Preliminary Results of Re...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-18

    ... Shrimp From the Socialist Republic of Vietnam: Preliminary Results of Re-conducted Administrative Review of Grobest & I-Mei Industrial (Vietnam) Co., Ltd. and Intent Not To Revoke; 2008-2009 AGENCY: Import... frozen warmwater shrimp from the Socialist Republic of Vietnam (``Vietnam''). The period of review (``POR...

  16. 77 FR 20008 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Initiation of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-03

    ... From the Socialist Republic of Vietnam: Initiation of Antidumping Duty New Shipper Reviews AGENCY... (``fish'') from the Socialist Republic of Vietnam (``Vietnam'') meet the statutory and regulatory... antidumping duty order on fish from Vietnam was published in the Federal Register on August 12, 2003.\\1\\ On...

  17. 76 FR 17837 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Initiation of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-31

    ... From the Socialist Republic of Vietnam: Initiation of Antidumping Duty New Shipper Review AGENCY... fillets'') from the Socialist Republic of Vietnam (``Vietnam''), received on February 28, 2011, meets the... INFORMATION: Background The notice announcing the antidumping duty order on fish fillets from Vietnam was...

  18. 31 CFR 500.565 - Family remittances to nationals of Vietnam and Cambodia.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Vietnam and Cambodia. 500.565 Section 500.565 Money and Finance: Treasury Regulations Relating to Money... remittances to nationals of Vietnam and Cambodia. (a) The remittances specified in this section are authorized... relative is a national of Vietnam or Cambodia, is a resident of Vietnam, Cambodia, or a country to which...

  19. 78 FR 39708 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Final Results of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ... From the Socialist Republic of Vietnam: Final Results of Antidumping Duty New Shipper Reviews; 2011... frozen fish fillets (``frozen fish fillets'') from the Socialist Republic of Vietnam (``Vietnam'').\\1...'' section of this notice. \\1\\ See Certain Frozen Fish Fillets From the Socialist Republic of Vietnam...

  20. 31 CFR 500.577 - Authorization of bank transactions with respect to Vietnam by certain international organizations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... with respect to Vietnam by certain international organizations. 500.577 Section 500.577 Money and... Licensing Policy § 500.577 Authorization of bank transactions with respect to Vietnam by certain... reference to Vietnam are authorized. Example: A transfer to Vietnam or a Vietnamese national of funds from...

  1. Voices from Vietnam: The New Literature from America's Longest War.

    ERIC Educational Resources Information Center

    Kneeshaw, Stephen

    1988-01-01

    Provides an essay review of seven books, written since 1983, on the Vietnam War. The titles include: THE BAD WAR: AN ORAL HISTORY OF THE VIETNAM WAR (1987); IN THE COMBAT ZONE: AN ORAL HISTORY OF AMERICAN WOMEN IN VIETNAM, 1966-1975 (1987); and DEAR AMERICA: LETTERS HOME FROM VIETNAM (1985). (JDH)

  2. The impact of economic growth on health care utilization: a longitudinal study in rural Vietnam.

    PubMed

    Thoa, Nguyen Thi Minh; Thanh, Nguyen Xuan; Chuc, Nguyen Thi Kim; Lindholm, Lars

    2013-03-16

    In many developing countries, including Vietnam, out-of-pocket payment is the principal source of health financing. The economic growth is widening the gap between rich and poor people in many aspects, including health care utilization. While inequities in health between high- and low-income groups have been well investigated, this study aims to investigate how the health care utilization changes when the economic condition is changing at a household level. We analysed a panel data of 11,260 households in a rural district of Vietnam. Of the sample, 74.4% having an income increase between 2003 and 2007 were defined as households with economic growth. We used a double-differences propensity score matching technique to compare the changes in health care expenditure as percentage of total expenditure and health care utilization from 2003 to 2005, from 2003 to 2007, and from 2005 to 2007, between households with and without economic growth. Households with economic growth spent less percentage of their expenditure for health care, but used more provincial/central hospitals (higher quality health care services) than households without economic growth. The differences were statistically significant. The results suggest that households with economic growth are better off also in terms of health services utilization. Efforts for reducing inequalities in health should therefore consider the inequality in income growth over time.

  3. Relative benefits of on-plot water supply over other 'improved' sources in rural Vietnam.

    PubMed

    Brown, Joe; Hien, Vo Thi; McMahan, Lanakila; Jenkins, Marion W; Thie, Lauren; Liang, Kaida; Printy, Erin; Sobsey, Mark D

    2013-01-01

    Access to improved water sources is rapidly expanding in rural central Vietnam. We examined one NGO-led piped water supply programme to assess the drinking water quality and health impacts of piped water systems where access to 'improved' water sources is already good. This longitudinal, prospective cohort study followed 300 households in seven project areas in Da Nang province, Vietnam: 224 households who paid for an on-plot piped water connection and 76 control households from the same areas relying primarily on 'improved' water sources outside the home. The 4-month study was intended to measure the impact of the NGO-led water programmes on households' drinking water quality and health and to evaluate system performance. We found that: (i) households connected to a piped water supply had consistently better drinking water quality than those relying on other sources, including 'improved' sources and (ii) connected households experienced less diarrhoea than households without a piped water connection (adjusted longitudinal prevalence ratio: 0.57 (95% CI 0.39-0.86, P = 0.006) and households using an 'improved' source not piped to the plot: (adjusted longitudinal prevalence ratio: 0.59 (95% CI 0.39-0.91, P = 0.018). Our results suggest that on-plot water service yields benefits over other sources that are considered 'improved' by the WHO/UNICEF Joint Monitoring Programme. © 2012 Blackwell Publishing Ltd.

  4. Short Communication Phylogenetic Characterization of HIV Type 1 CRF01_AE V3 Envelope Sequences in Pregnant Women in Northern Vietnam

    PubMed Central

    Caridha, Rozina; Ha, Tran Thi Thanh; Gaseitsiwe, Simani; Hung, Pham Viet; Anh, Nguyen Mai; Bao, Nguyen Huy; Khang, Dinh Duy; Hien, Nguyen Tran; Cam, Phung Dac; Chiodi, Francesca

    2012-01-01

    Abstract Characterization of HIV-1 strains is important for surveillance of the HIV-1 epidemic. In Vietnam HIV-1-infected pregnant women often fail to receive the care they are entitled to. Here, we analyzed phylogenetically HIV-1 env sequences from 37 HIV-1-infected pregnant women from Ha Noi (n=22) and Hai Phong (n=15), where they delivered in 2005–2007. All carried CRF01_AE in the gp120 V3 region. In 21 women CRF01_AE was also found in the reverse transcriptase gene. We compared their env gp120 V3 sequences phylogenetically in a maximum likelihood tree to those of 198 other CRF01_AE sequences in Vietnam and 229 from neighboring countries, predominantly Thailand, from the HIV-1 database. Altogether 464 sequences were analyzed. All but one of the maternal sequences colocalized with sequences from northern Vietnam. The maternal sequences had evolved the least when compared to sequences collected in Ha Noi in 2002, as shown by analysis of synonymous and nonsynonymous changes, than to other Vietnamese sequences collected earlier and/or elsewhere. Since the HIV-1 epidemic in women in Vietnam may still be underestimated, characterization of HIV-1 in pregnant women is important to observe how HIV-1 has evolved and follow its molecular epidemiology. PMID:21936713

  5. RMIT Vietnam and Vietnam's Development: Risk and Responsibility

    ERIC Educational Resources Information Center

    Wilmoth, David

    2004-01-01

    To help bridge the gap between demand and supply for tertiary education, Vietnam has opened to direct, foreign providers, and the Royal Melbourne Institute of Technology (RMIT) International University Vietnam is the first of this category. By sponsoring a large project in a country that some see as risky, RMIT Vietnam needs to be triply viable.…

  6. 76 FR 16384 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-23

    ... Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary Results of Antidumping Duty New... Republic of Vietnam (``Vietnam''). The period of review for this review is February 1, 2010, through July... antidumping duty order on shrimp from Vietnam for Quoc Viet Seaproducts Processing Trading and Import-Export...

  7. 75 FR 20563 - Certain Frozen Warmwater Shrimp from the Socialist Republic of Vietnam: Extension of Final...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-20

    ... Shrimp from the Socialist Republic of Vietnam: Extension of Final Results of Antidumping Duty New Shipper... Vietnam (``Vietnam''). This review covers the period February 1, 2008 through January 31, 2009. EFFECTIVE... preliminary intent to rescind the new shipper review in the antidumping duty order on shrimp from Vietnam for...

  8. 75 FR 844 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-06

    ... Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary Results of Antidumping Duty New... Republic of Vietnam (``Vietnam''). This review covers the period February 1, 2008 through January 31, 2009... of initiation of the new shipper review in the antidumping duty order on shrimp from Vietnam for Nhat...

  9. 45 CFR 506.10 - “Vietnam conflict” defined.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 45 Public Welfare 3 2014-10-01 2014-10-01 false âVietnam conflictâ defined. 506.10 Section 506.10... § 506.10 “Vietnam conflict” defined. Vietnam conflict refers to the period beginning February 28, 1961... proclaimed the date of May 7, 1975, to be the ending date of the “Vietnam era” (Presidential Proclamation No...

  10. 45 CFR 506.10 - “Vietnam conflict” defined.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 3 2013-10-01 2013-10-01 false âVietnam conflictâ defined. 506.10 Section 506.10... § 506.10 “Vietnam conflict” defined. Vietnam conflict refers to the period beginning February 28, 1961... proclaimed the date of May 7, 1975, to be the ending date of the “Vietnam era” (Presidential Proclamation No...

  11. 45 CFR 506.10 - “Vietnam conflict” defined.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 3 2012-10-01 2012-10-01 false âVietnam conflictâ defined. 506.10 Section 506.10... § 506.10 “Vietnam conflict” defined. Vietnam conflict refers to the period beginning February 28, 1961... proclaimed the date of May 7, 1975, to be the ending date of the “Vietnam era” (Presidential Proclamation No...

  12. 75 FR 27705 - Certain Frozen Warmwater Shrimp from the Socialist Republic of Vietnam: Extension of Final...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-18

    ... Shrimp from the Socialist Republic of Vietnam: Extension of Final Results of Antidumping Duty New Shipper... Vietnam (``Vietnam''). This review covers the period February 1, 2008 through January 31, 2009. EFFECTIVE... preliminary intent to rescind the new shipper review in the antidumping duty order on shrimp from Vietnam for...

  13. 45 CFR 506.10 - “Vietnam conflict” defined.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 3 2011-10-01 2011-10-01 false âVietnam conflictâ defined. 506.10 Section 506.10... § 506.10 “Vietnam conflict” defined. Vietnam conflict refers to the period beginning February 28, 1961... proclaimed the date of May 7, 1975, to be the ending date of the “Vietnam era” (Presidential Proclamation No...

  14. 31 CFR 500.560 - Bank accounts of official representatives of foreign governments in North Korea, North Viet-Nam...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... representatives of foreign governments in North Korea, North Viet-Nam, Cambodia, or South Viet-Nam. 500.560... governments in North Korea, North Viet-Nam, Cambodia, or South Viet-Nam. Specific licenses are issued authorizing payments from accounts of official representatives of foreign governments in North Korea, North...

  15. Low perception of malaria risk among the Ra-glai ethnic minority in south-central Vietnam: implications for forest malaria control.

    PubMed

    Peeters Grietens, Koen; Xuan, Xa Nguyen; Van Bortel, Wim; Duc, Thang Ngo; Ribera, Joan Muela; Ba Nhat, Truong; Van, Ky Pham; Le Xuan, Hung; D'Alessandro, Umberto; Erhart, Annette

    2010-01-20

    Despite Vietnam's success in reducing malaria mortality and morbidity over the last decade, malaria persists in the forested and mountainous areas of the central and southern provinces, where more than 50% of the clinical cases and 90% of severe cases and malaria deaths occur. Between July 2005 and September 2006, a multi-method study, triangulating a malariometric cross-sectional survey and qualitative data from focused ethnography, was carried out among the Ra-glai ethnic minority in the hilly forested areas of south-central Vietnam. Despite the relatively high malaria burden among the Ra-glai and their general awareness that mosquitoes can transmit an unspecific kind of fever (84.2%), the use of bed nets, distributed free of charge by the national malaria control programme, remains low at the farmers' forest fields where the malaria risk is the highest. However, to meet work requirements during the labour intensive malaria transmission and rainy season, Ra-glai farmers combine living in government supported villages along the road with a second home or shelter at their slash and burn fields located in the forest. Bed net use was 84.6% in the villages but only 52.9% at the forest fields; 20.6% of the respondents slept unprotected in both places. Such low use may be explained by the low perception of the risk for malaria, decreasing the perceived need to sleep protected. Several reasons may account for this: (1) only 15.6% acknowledged the higher risk of contracting malaria in the forest than in the village; (2) perceived mosquito biting times only partially coincided with Anopheles dirus ss and Anopheles minimus A true biting times; (3) the disease locally identified as 'malaria' was hardly perceived as having an impact on forest farmers' daily lives as they were unaware of the specific kind of fevers from which they had suffered even after being diagnosed with malaria at the health centre (20.9%). The progressive confinement of malaria to minority groups and settings in the Greater Mekong sub-region implies that further success in malaria control will be linked to research into these specific socio-cultural contexts. Findings highlight the need for context sensitive malaria control policies; not only to reduce the local malaria burden but also to minimize the risk of malaria spreading to other areas where transmission has virtually ceased.

  16. Vietnam's forest transition in retrospect: demonstrating weaknesses in business-as-usual scenarios for REDD.

    PubMed

    Ankersen, Jeppe; Grogan, Kenneth; Mertz, Ole; Fensholt, Rasmus; Castella, Jean-Christophe; Lestrelin, Guillaume; Nguyen, Dinh Tien; Danielsen, Finn; Brofeldt, Søren; Rasmussen, Kjeld

    2015-05-01

    One of the prerequisites of the REDD+ mechanism is to effectively predict business-as-usual (BAU) scenarios for change in forest cover. This would enable estimation of how much carbon emission a project could potentially prevent and thus how much carbon credit should be rewarded. However, different factors like forest degradation and the lack of linearity in forest cover transitions challenge the accuracy of such scenarios. Here we predict and validate such BAU scenarios retrospectively based on forest cover changes at village and district level in North Central Vietnam. With the government's efforts to increase the forest cover, land use policies led to gradual abandonment of shifting cultivation since the 1990s. We analyzed Landsat images from 1973, 1989, 1998, 2000, and 2011 and found that the policies in the areas studied did lead to increased forest cover after a long period of decline, but that this increase could mainly be attributed to an increase in open forest and shrub areas. We compared Landsat classifications with participatory maps of land cover/use in 1998 and 2012 that indicated more forest degradation than was captured by the Landsat analysis. The BAU scenarios were heavily dependent on which years were chosen for the reference period. This suggests that hypothetical REDD+ activities in the past, when based on the remote sensing data available at that time, would have been unable to correctly estimate changes in carbon stocks and thus produce relevant BAU scenarios.

  17. Vietnam's Forest Transition in Retrospect: Demonstrating Weaknesses in Business-as-Usual Scenarios for REDD+

    NASA Astrophysics Data System (ADS)

    Ankersen, Jeppe; Grogan, Kenneth; Mertz, Ole; Fensholt, Rasmus; Castella, Jean-Christophe; Lestrelin, Guillaume; Nguyen, Dinh Tien; Danielsen, Finn; Brofeldt, Søren; Rasmussen, Kjeld

    2015-05-01

    One of the prerequisites of the REDD+ mechanism is to effectively predict business-as-usual (BAU) scenarios for change in forest cover. This would enable estimation of how much carbon emission a project could potentially prevent and thus how much carbon credit should be rewarded. However, different factors like forest degradation and the lack of linearity in forest cover transitions challenge the accuracy of such scenarios. Here we predict and validate such BAU scenarios retrospectively based on forest cover changes at village and district level in North Central Vietnam. With the government's efforts to increase the forest cover, land use policies led to gradual abandonment of shifting cultivation since the 1990s. We analyzed Landsat images from 1973, 1989, 1998, 2000, and 2011 and found that the policies in the areas studied did lead to increased forest cover after a long period of decline, but that this increase could mainly be attributed to an increase in open forest and shrub areas. We compared Landsat classifications with participatory maps of land cover/use in 1998 and 2012 that indicated more forest degradation than was captured by the Landsat analysis. The BAU scenarios were heavily dependent on which years were chosen for the reference period. This suggests that hypothetical REDD+ activities in the past, when based on the remote sensing data available at that time, would have been unable to correctly estimate changes in carbon stocks and thus produce relevant BAU scenarios.

  18. Wheeled mobility: factors influencing mobility and assistive technology in veterans and servicemembers with major traumatic limb loss from Vietnam war and OIF/OEF conflicts.

    PubMed

    Laferrier, Justin Z; McFarland, Lynne V; Boninger, Michael L; Cooper, Rory A; Reiber, Gayle E

    2010-01-01

    Returning wounded veterans and servicemembers to their highest level of function following traumatic injury is a priority of the Departments of Defense and Veterans Affairs. We surveyed 245 veterans from the Vietnam war and 226 servicemembers and veterans from Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) conflicts with at least one major traumatic lower-limb loss to determine their use of mobility assistive technology (AT) and patterns of limb abandonment. Prosthetic device use without wheelchair use is found in 50.5% of Vietnam and 42.8% of OIF/OEF groups. Prostheses and supplementary wheelchairs are used by Vietnam (32%) and OIF/OEF (53%) groups (p < 0.01). Exclusive wheelchair use is more frequent in the Vietnam group (18%) than in the OIF/OEF group (4.0%, p < 0.01). In Vietnam participants, multivariate analysis found that multiple-limb loss (adjusted odds ratio [AOR] = 14.5; 95% confidence interval [CI] 5.5-38.5), bilateral lower-limb loss (AOR = 12.7; 95% CI 6.2-26.1), and number of comorbidities (AOR = 1.3; 95% CI 1.2-1.5) are associated with increased likelihood of wheelchair use. In OIF/OEF participants, bilateral lower-limb loss (AOR = 29.8; 95% CI 11.0-80.7), multiple-limb loss (AOR = 16.3; 95% CI 3.1-85.3), cumulative trauma disorder (AOR = 2.4; 95% CI 1.2-4.9), and number of combat injuries (AOR = 1.4; 95% CI 1.2-1.7) are associated with wheelchair use. Combined use of different types of mobility ATs promotes improved rehabilitation and ability to function.

  19. Slaughterhouse pigs are a major reservoir of Streptococcus suis serotype 2 capable of causing human infection in southern Vietnam.

    PubMed

    Ngo, Thi Hoa; Tran, Thi Bich Chieu; Tran, Thi Thu Nga; Nguyen, Van Dung; Campbell, James; Pham, Hong Anh; Huynh, Huu Tho; Nguyen, Van Vinh Chau; Bryant, Juliet E; Tran, Tinh Hien; Farrar, Jeremy; Schultsz, Constance

    2011-03-28

    Streptococcus suis is a pathogen of major economic significance to the swine industry and is increasingly recognized as an emerging zoonotic agent in Asia. In Vietnam, S. suis is the leading cause of bacterial meningitis in adult humans. Zoonotic transmission is most frequently associated with serotype 2 strains and occupational exposure to pigs or consumption of infected pork. To gain insight into the role of pigs for human consumption as a reservoir for zoonotic infection in southern Vietnam, we determined the prevalence and diversity of S. suis carriage in healthy slaughterhouse pigs. Nasopharyngeal tonsils were sampled from pigs at slaughterhouses serving six provinces in southern Vietnam and Ho Chi Minh City area from September 2006 to November 2007. Samples were screened by bacterial culture. Isolates of S. suis were serotyped and characterized by multi locus sequence typing (MLST) and pulse field gel electrophoresis (PFGE). Antibiotic susceptibility profiles and associated genetic resistance determinants, and the presence of putative virulence factors were determined. 41% (222/542) of pigs carried S. suis of one or multiple serotypes. 8% (45/542) carried S. suis serotype 2 which was the most common serotype found (45/317 strains, 14%). 80% of serotype 2 strains belonged to the MLST clonal complex 1,which was previously associated with meningitis cases in Vietnam and outbreaks of severe disease in China in 1998 and 2005. These strains clustered with representative strains isolated from patients with meningitis in PFGE analysis, and showed similar antimicrobial resistance and virulence factor profiles. Slaughterhouse pigs are a major reservoir of S. suis serotype 2 capable of causing human infection in southern Vietnam. Strict hygiene at processing facilities, and health education programs addressing food safety and proper handling of pork should be encouraged.

  20. Exposure to Tobacco Advertising, Promotion Among the Adult Population in Vietnam and Its Implications for Public Health.

    PubMed

    Huong, Le Thi Thanh; Long, Tran Khanh; Van Anh, Tran Thi; Tuyet-Hanh, Tran Thi; Giang, Kim Bao; Hai, Phan Thi; Huyen, Doan Thu; Khue, Luong Ngoc; Lam, Nguyen Tuan; Nga, Pham Quynh; Quan, Nguyen The; Linh, Tran Nu Quy; Ha, Nguyen Thanh; Van Minh, Hoang

    2017-10-01

    The Law on Tobacco Control and the Law on Advertisement prohibit the advertising of any tobacco product in Vietnam. Tobacco promotion and marketing are alsostrictly prohibited. However, the violation of tobacco adverting and promotion is still common in Vietnam. This article aims at describing the exposure to tobacco advertising and promotion among the population aged 15+ years in Vietnam based on the data from the Global Adult Tobacco Survey 2015 from the view of the community, identifying any possible associations between the exposure to tobacco advertising and promotion and other individual factors, and discussing its possible public health implications. A cross-sectional study with the nationwide scale. Secondary data from the Global Adult Tobacco Survey 2015 was explored and analyzed. Chi-square test and multivariate logistic regressions were applied in the data analysis. The most common type of adults' exposure to tobacco advertising and promotion was points of sale (8.6%); 9.8% adults exposure to one source of tobacco advertising and 4.0% of them exposed to one source of tobacco promotion. Around 13.3% of Vietnamese adults were exposed to tobacco advertisement, while 2.0% were exposed to tobacco promotion, 5.3% were exposed to both tobacco advertising and promotion, and 16.6% were exposed to tobacco advertising or promotion. Gender, educational level, age, occupation, marital status, socioeconomic status, location (urban, rural), and current smoking status were associated with the exposure to tobacco advertising, tobacco promotion, tobacco advertising and promotion, and tobacco advertising or promotion. Although there are comprehensive bans on tobacco advertising and promotion in Vietnam, adults aged 15+ years still reported their exposure to tobacco advertising and promotion. There should be a strict enforcement of the ban on tobacco advertising and promotion in Vietnam.

  1. Child malnutrition in Vietnam and its transition in an era of economic growth.

    PubMed

    Thang, N M; Popkin, B

    2003-08-01

    In the past decade, Vietnam has achieved an impressive rate of socioeconomic development paralleled by broad improvements in the health sector--but child malnutrition still lags far behind that of most other health indicators. The purpose of this study is to discover inequality in the near-present situation (1997-98; hereafter referred to as the present situation), changes of child malnutrition over the period from 1992-93 to 1997-98, and factors that might affect the inability to rapidly reduce child malnutrition among the poor, rural, and minority populations. Data from two nationally representative surveys--the 1992-93 and 1997-98 Vietnam Living Standards Measurement Surveys (LSMS)--of Vietnamese households were utilized in this study. Descriptive and logistic procedures were used for the analyses. The focus was on the variables related to household poverty status, total expenditure levels, rural residence, and minority status with controls for other key economic and demographic measures. A cross-sectional analysis was conducted on data using 4305 households and 4367 children (2-11 years of age in 1992-93) that were included in both surveys of the Vietnam Living Standard Survey (VLSS) in 1992-93 and 1997-98, conducted under the framework of the LSMS. Children of rural households, poor households, and ethnic minority backgrounds are significantly more likely to be malnourished than urban residents, children of nonpoor households, and the majority Kinh population. Additionally, avenues to escape malnourishment are limited in the former categories. These results suggest that economic improvements in Vietnam have, for the most part, bypassed the rural poor and minorities, and targeting economic resources towards these groups will be most critical to reduce malnutrition in Vietnam.

  2. A Pimarane Diterpene and Cytotoxic Angucyclines from a Marine-Derived Micromonospora sp. in Vietnam's East Sea.

    PubMed

    Mullowney, Michael W; Ó hAinmhire, Eoghainín; Tanouye, Urszula; Burdette, Joanna E; Pham, Van Cuong; Murphy, Brian T

    2015-09-15

    A screening of our actinomycete fraction library against the NCI-60 SKOV3 human tumor cell line led to the isolation of isopimara-2-one-3-ol-8,15-diene (1), lagumycin B (2), dehydrorabelomycin (3), phenanthroviridone (4), and WS-5995 A (5). These secondary metabolites were produced by a Micromonospora sp. isolated from sediment collected off the Cát Bà peninsula in the East Sea of Vietnam. Compound 1 is a novel Δ(8,9)-pimarane diterpene, representing one of approximately 20 actinomycete-produced diterpenes reported to date, while compound 2 is an angucycline antibiotic that has yet to receive formal characterization. The structures of 1 and 2 were elucidated by combined NMR and MS analysis and the absolute configuration of 1 was assigned by analysis of NOESY NMR and CD spectroscopic data. Compounds 2-5 exhibited varying degrees of cytotoxicity against a panel of cancerous and non-cancerous cell lines. Overall, this study highlights our collaborative efforts to discover novel biologically active molecules from the large, underexplored, and biodiversity-rich waters of Vietnam's East Sea.

  3. Efficiency and productivity of hospitals in Vietnam.

    PubMed

    Pham, Thuy Linh

    2011-01-01

    The purpose of this paper is to examine the relative efficiency and productivity of hospitals during the health reform process. Data envelopment analyses method (DEA) with the input-oriented variable-returns-to-scale model was used to calculate efficiency scores. Malmquist total factor productivity index approach was then employed to calculate productivity of hospitals. Data of 101 hospitals was extracted from databases of the Ministry of Health, Vietnam from the years 1998 to 2006. There was evidence of improvement in overall technical efficiency from 65 per cent in 1998 to 76 per cent in 2006. Hospitals' productivity progressed around 1.4 per cent per year, which was mainly due to the technical efficiency improvement. Furthermore, provincial hospitals were more technically efficient than their central counterparts and hospitals located in different regions performed differently. The paper provides an insight in the performance of Vietnamese public hospitals that has been rarely examined before and contributes to the existing literature of hospital performance in developing countries

  4. The evolving local social contract for managing climate and disaster risk in Vietnam.

    PubMed

    Christoplos, Ian; Ngoan, Le Duc; Sen, Le Thi Hoa; Huong, Nguyen Thi Thanh; Lindegaard, Lily Salloum

    2017-07-01

    How do disasters shape local government legitimacy in relation to managing climate- and disaster-related risks? This paper looks at how local authorities in Central Vietnam perceive their social contract for risk reduction, including the partial merging of responsibilities for disaster risk management with new plans for and investments in climate change adaptation and broader socioeconomic development. The findings indicate that extreme floods and storms constitute critical junctures that stimulate genuine institutional change. Local officials are proud of their strengthened role in disaster response and they are eager to boost investment in infrastructure. They have struggled to reinforce their legitimacy among their constituents, but given the shifting roles of the state, private sector, and civil society, and the undiminished emphasis on high-risk development models, their responsibilities for responding to emerging climate change scenarios are increasingly nebulous. The past basis for legitimacy is no longer valid, but tomorrow's social contract is not yet defined. © 2017 The Author(s). Disasters © Overseas Development Institute, 2017.

  5. The Vietnam Drug User Returns. Final Report. Special Action Office Monograph, Series A, Number 2, May 1974.

    ERIC Educational Resources Information Center

    Robins, Lee N.

    This report, based upon case records and follow-up interviews with 965 U.S. Servicemen returning from Vietnam investigates: (1) the availability and utilization of narcotics, marihuana and alcohol in Vietnam; (2) the psychosocial and demographic predictors of pre- and post-Vietnam narcotic use; and (3) the post-Vietnam adjustment difficulties of…

  6. The Lessons of the Vietnam War.

    ERIC Educational Resources Information Center

    Starr, Jerold M., Ed.

    This text book on the Vietnam War is to be used in teaching high students. Each of the volume's 12 chapters is a self-contained unit on an aspect of the War. The chapters are: (1) Introduction to Vietnam: land, history, and culture; (2) America at war in Vietnam: decisions and consequences; (3) Was the Vietnam War legal? (4) who fought for the…

  7. Bibliographic Index of Soviet Military Books, 1970-1974.

    DTIC Science & Technology

    1984-01-31

    Countries. These include the nations of Eastern Europe and other socialist states such as Cuba, Mongolia and Vietnam. Despite the rift between the Soviet...Everyday Life of the Belo- russian Red Banner.(Belorusskiy Voyennyy Okrug. Budni Belorusskogo Kra - noznamennogo)2nd ed. Polit Admin Red Banner Belorussian...C(,W,Nauka,1970. 773p. 30,000 3r.70k. 70-05598 ,078.’ Liberation of Southeast and Central Europe by Troops of the -.ii and ird Ukrainian Fronts

  8. A new species of Leptolalax (Anura: Megophryidae) from Son Tra Peninsula, central Vietnam.

    PubMed

    Nguyen, Luan Thanh; Poyarkov, Nikolay A Jr; Le, Dzung Trung; Vo, Ba Dinh; Phan, Hoa Thi; Duong, Tang van; Murphy, Robert W; Nguyen, Sang Ngoc

    2018-02-28

    Morphological, acoustic and molecular analyses result in the description of Leptolalax rowleyae sp. nov., a new species of frog in the Megophryidae, belonging to the L. applebyi Rowley Cao species group from central Vietnam. It differs from its congeners by a combination of the following morphological attributes: (1) adult SVL 23.4-25.4 mm in males and 27-27.8 mm in females; (2) presence of distinct dark/brown dorsolateral markings, including black spots on flanks; (3) pinkish milk-white to light brown chest and belly with numerous white speckles; (4) tympanum distinct; (5) absence of webbing or lateral dermal fringes on fingers and toes; (6) pectoral glands comparatively small (3.3-4.7% of SVL); (7) ventrolateral glands indistinct; and (8) iris bicolored with copper tint in upper half fading to golden in lower third of iris. The male advertisement call of the new species consists of 4-6 notes, lacking a distinct introductory note, with an average dominant frequency of 3.2-3.5 kHz. The description of the tadpole constitutes the first description of larval morphology for a member of the L. appleybi species group. Genetically, an uncorrected sequence divergence of 7.4% for 16S rRNA separates the new species from its two closest relatives, L. ardens and L. melicus in the L. applebyi species group.

  9. Potential flood hazard assessment by integration of ALOS PALSAR and ASTER GDEM: a case study for the Hoa Chau commune, Hoa Vang district, in central Vietnam

    NASA Astrophysics Data System (ADS)

    Huong, Do Thi Viet; Nagasawa, Ryota

    2014-01-01

    The potential flood hazard was assessed for the Hoa Chau commune in central Vietnam in order to identify the high flood hazard zones for the decision makers who will execute future rural planning. A new approach for deriving the potential flood hazard based on integration of inundation and flow direction maps is described. Areas inundated in the historical flood event of 2007 were extracted from Advanced Land Observing Satellite (ALOS) phased array L-band synthetic aperture data radar (PALSAR) images, while flow direction characteristics were derived from the ASTER GDEM to extract the depressed surfaces. Past flood experience and the flow direction were then integrated to analyze and rank the potential flood hazard zones. The land use/cover map extracted from LANDSAT TM and flood depth point records from field surveys were utilized to check the possibility of susceptible inundated areas, extracting data from ALOS PALSAR and ranking the potential flood hazard. The estimation of potential flood hazard areas revealed that 17.43% and 17.36% of Hoa Chau had high and medium potential flood hazards, respectively. The flow direction and ALOS PALSAR data were effectively integrated for determining the potential flood hazard when hydrological and meteorological data were inadequate and remote sensing images taken during flood times were not available or were insufficient.

  10. Geological and Geomorphological Impacts of Two Large Typhoons from the Central Coast Of Vietnam

    NASA Astrophysics Data System (ADS)

    Switzer, A. D.; Gouramanis, C.; Dura, T.; Lam, D. D.; Hoang, L. V.; Sloss, C. R.; Hoang, Q. D.; Lee, Y. S.; Chan, M. M.; Pham, D. T.

    2011-12-01

    Typhoons Xangsane (2006) and Ketsana (2009) left behind geological and geomorphic evidence of their landfall in central Vietnam. In both instances, the events caused the evacuation of several hundred thousand people, considerable deaths (at least 70 and 160, respectively) and damages to infrastructure of more than US$600 million each time. Storm surges and waves associated with both events left sandsheet deposits and scattered cobble to boulder size clasts on the coastal landscape. This study details the first investigation of multiple storm deposits from the Vietnamese coast. These deposits provide modern analogues for the study of past events regionally and globally. In each situation, the deposits show characteristics unique to their setting. In one location, Canh Duong Village, at the northern end of Chan May embayment, the Xangsane event deposited well-defined populations of cobbles (rock) and soil clasts that allows the identification of the sediment source. In a second location, several hundred meters west of Chan May Port and at the southern end of the embayment, the presence of a large tree stump with encrusting intertidal bivalve molluscs and tube worms provides a minimum transport distance for the Ketsana event. When combined with generic information on the extent, height above sea level and sedimentary properties of the storm-deposited sandsheets, the unique qualities of the different deposits allow an accurate reconstruction of the inundation characteristics of these recent storms.

  11. Evolution of Highly Pathogenic H5N1 Avian Influenza Viruses in Vietnam between 2001 and 2007

    PubMed Central

    Smith, Catherine B.; Zhao, Zi-Ming; Carrel, Margaret; Inui, Kenjiro; Do, Hoa T.; Mai, Duong T.; Jadhao, Samadhan; Balish, Amanda; Shu, Bo; Luo, Feng; Emch, Michael; Matsuoka, Yumiko; Lindstrom, Stephen E.; Cox, Nancy J.; Nguyen, Cam V.; Klimov, Alexander; Donis, Ruben O.

    2008-01-01

    Highly pathogenic avian influenza (HPAI) H5N1 viruses have caused dramatic economic losses to the poultry industry of Vietnam and continue to pose a serious threat to public health. As of June 2008, Vietnam had reported nearly one third of worldwide laboratory confirmed human H5N1 infections. To better understand the emergence, spread and evolution of H5N1 in Vietnam we studied over 300 H5N1 avian influenza viruses isolated from Vietnam since their first detection in 2001. Our phylogenetic analyses indicated that six genetically distinct H5N1 viruses were introduced into Vietnam during the past seven years. The H5N1 lineage that evolved following the introduction in 2003 of the A/duck/Hong Kong/821/2002-like viruses, with clade 1 hemagglutinin (HA), continued to predominate in southern Vietnam as of May 2007. A virus with a clade 2.3.4 HA newly introduced into northern Vietnam in 2007, reassorted with pre-existing clade 1 viruses, resulting in the emergence of novel genotypes with neuraminidase (NA) and/or internal gene segments from clade 1 viruses. A total of nine distinct genotypes have been present in Vietnam since 2001, including five that were circulating in 2007. At least four of these genotypes appear to have originated in Vietnam and represent novel H5N1 viruses not reported elsewhere. Geographic and temporal analyses of H5N1 infection dynamics in poultry suggest that the majority of viruses containing new genes were first detected in northern Vietnam and subsequently spread to southern Vietnam after reassorting with pre-existing local viruses in northern Vietnam. Although the routes of entry and spread of H5N1 in Vietnam remain speculative, enhanced poultry import controls and virologic surveillance efforts may help curb the entry and spread of new HPAI viral genes. PMID:18941631

  12. Evolution of highly pathogenic H5N1 avian influenza viruses in Vietnam between 2001 and 2007.

    PubMed

    Wan, Xiu-Feng; Nguyen, Tung; Davis, C Todd; Smith, Catherine B; Zhao, Zi-Ming; Carrel, Margaret; Inui, Kenjiro; Do, Hoa T; Mai, Duong T; Jadhao, Samadhan; Balish, Amanda; Shu, Bo; Luo, Feng; Emch, Michael; Matsuoka, Yumiko; Lindstrom, Stephen E; Cox, Nancy J; Nguyen, Cam V; Klimov, Alexander; Donis, Ruben O

    2008-01-01

    Highly pathogenic avian influenza (HPAI) H5N1 viruses have caused dramatic economic losses to the poultry industry of Vietnam and continue to pose a serious threat to public health. As of June 2008, Vietnam had reported nearly one third of worldwide laboratory confirmed human H5N1 infections. To better understand the emergence, spread and evolution of H5N1 in Vietnam we studied over 300 H5N1 avian influenza viruses isolated from Vietnam since their first detection in 2001. Our phylogenetic analyses indicated that six genetically distinct H5N1 viruses were introduced into Vietnam during the past seven years. The H5N1 lineage that evolved following the introduction in 2003 of the A/duck/Hong Kong/821/2002-like viruses, with clade 1 hemagglutinin (HA), continued to predominate in southern Vietnam as of May 2007. A virus with a clade 2.3.4 HA newly introduced into northern Vietnam in 2007, reassorted with pre-existing clade 1 viruses, resulting in the emergence of novel genotypes with neuraminidase (NA) and/or internal gene segments from clade 1 viruses. A total of nine distinct genotypes have been present in Vietnam since 2001, including five that were circulating in 2007. At least four of these genotypes appear to have originated in Vietnam and represent novel H5N1 viruses not reported elsewhere. Geographic and temporal analyses of H5N1 infection dynamics in poultry suggest that the majority of viruses containing new genes were first detected in northern Vietnam and subsequently spread to southern Vietnam after reassorting with pre-existing local viruses in northern Vietnam. Although the routes of entry and spread of H5N1 in Vietnam remain speculative, enhanced poultry import controls and virologic surveillance efforts may help curb the entry and spread of new HPAI viral genes.

  13. The Lessons of the Vietnam War: Unit 13. Teacher's Manual: Strategies and Resources for Teaching the Vietnam War.

    ERIC Educational Resources Information Center

    Center for Social Studies Education, Pittsburgh, PA.

    This teacher's manual is designed to accompany the curriculum "The Lessons of the Vietnam War." For each of 12 units of the curriculum, this manual suggests projects for student research and classroom activities. The 12 units are entitled: (1) Introduction to Vietnam: land, history and culture; (2) America at war in Vietnam: decisions and…

  14. A dynamic approach to assess international competitiveness of Vietnam's garment and textile industry.

    PubMed

    Vu, Huong Thanh; Pham, Lam Cat

    2016-01-01

    Garment and textile (G&T) industry has been playing as a driving force for the socio-economic development of Vietnam. With the international integration process and rising challenges from the global market, there is a need to examine international competitiveness of Vietnam's G&T industry to find out what Vietnam should focus on to enhance its position in the global market place. This paper, by using the Generalized Double Diamond Model (GDDM), analyzed international competitiveness of Vietnam's G&T industry and compared it with China. The results showed that Vietnam was less competitive than China in all four attributes of the GDDM. The lowest competitiveness of Vietnam in comparison with China was Related and Supporting industries, followed by Factor Conditions. Therefore, the paper argued that although Vietnam should improve all of the four attributes in the long term, Vietnam must put a high priority on developing Related and Supporting Industries and then enhance Factor Conditions while maintaining its strengths over China in terms of G&T export growths and favorable business context.

  15. From Combat to Legacies: Novels of the Vietnam War.

    ERIC Educational Resources Information Center

    Johannessen, Larry R.

    1995-01-01

    Discusses novels of the Vietnam War, their usefulness, and the interest they hold for students. Considers four categories of Vietnam novels: the Vietnam experience, the war at home, the refugee experience, and the war's effect on the next generation. (SR)

  16. 77 FR 55186 - Executive-Led Indonesia Vietnam Infrastructure Business Development Mission Statement...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... DEPARTMENT OF COMMERCE International Trade Administration Executive-Led Indonesia Vietnam... the Notice of the Executive-Led Indonesia Vietnam Infrastructure Business Development Mission... Timeframe for Recruitment and Applications section of the Notice of the Indonesia Vietnam Infrastructure...

  17. Mantle xenoliths from Central Vietnam: evidence for at least Meso-Proterozoic formation of the lithospheric mantle

    NASA Astrophysics Data System (ADS)

    Proßegger, Peter; Ntaflos, Theodoros; Ackerman, Lukáš; Hauzenberger, Christoph; Tran, Tuan Anh

    2016-04-01

    Intraplate Cenozoic basalts that are widely dispersed along the continental margin of East Asia belong to the Western Pacific "diffuse" igneous province. They consist mainly of alkali basalts, basanites,rarely nephelinites, which are mantle xenolith-bearing, potassic rocks and quartz tholeiites. The volcanism in this area has been attributed to the continental extension caused by the collision of India with Asia and by the subduction of the Pacific Ocean below Asia. We studied a suite of 24 mantle xenoliths from La Bang Lake, Dak Doa district and Bien Ho, Pleiku city in the Gia Province, Central Vietnam. They are predominantly spinel lherzolites (19) but spinel harburgites (3) and two garnet pyroxenites are present as well. The sizes of the xenoliths range from 5 to 40 cm in diameter with medium to coarse-grained protogranular textures. Whole rock major and trace element analyses display a wide range of compositions. The MgO concentration varies from 36.0 to 45.8 wt% whereas Al2O3 and CaO range from 0.63 to 4.36 wt% and from 0.52 to 4.21 wt% (with one sample having CaO of 6.63 wt%) respectively. Both CaO and Al2O3 positively correlate with MgO most likely indicating that the sampled rocks were derived from a common mantle source experienced variable degrees of partial melting. Mineral analyses show that the rock forming minerals are chemically homogeneous. The Fo contents of olivine vary between 89.2 and 91.2 and the Mg# of orthopyroxene and clinopyroxene range from 89 to 92 and 89 to 94 respectively. The range of Cr# for spinel is 0.06-0.26. Model calculations in both whole rock and clinopyroxenes show that lithospheric mantle underneath Central Vietnam experienced melt extractions that vary between 2-7, 12-15 and 20-30%. The majority of the primitive mantle-normalized whole rock and clinopyroxene REE patterns are parallel to each other indicating that clinopyroxene is the main repository of the trace elements. Clinopyroxenes are divided into two groups: group A with concave upwards REE and (La/Yb)N < 1 suggesting various degrees of melt extraction and group B with (La/Yb)N ranging between 1 and 10. The group B in a mantle normalized trace element diagram shows negative Pb and Sr anomalies compared to their neighbour elements, which together with the general absence of hydrous phases, suggest variable interaction with percolating silicate melt(s). The primitive-mantle normalized highly siderophile element (HSE) concentration pattern show almost no fractionation among Ir, Ru and Pt with only slight depletion in Os suggesting very limited effect of metasomatism on the HSE contents. On the other hand, most of the samples display clear Re addition from the percolating melts preventing calculation of reliable rhenium depletion ages (TRD). However, one sample with depleted Pd and Re signature yield TRD of 1.0 Ga which can be interpreted as a minimum SCLM stabilization age in this area. Mantle xenoliths from Central Vietnam range from fertile to depleted compositions partly affected by metasomatic silicate melts. Re-Os isotopic composition reveals a Meso-Proterozoic minimum stabilization age of the lithospheric mantle.

  18. Unintentional ingestion of Cordyceps fungus-infected cicada nymphs causing ibotenic acid poisoning in Southern Vietnam.

    PubMed

    Doan, Uyen Vy; Mendez Rojas, Bomar; Kirby, Ralph

    2017-09-01

    Cordyceps fungus found in infected cicada nymphs ("cicada flowers") is utilized in traditional Chinese medicine. Cordyceps fungus toxicity in humans has not been previously reported. We report 60 cases of apparent Cordyceps poisoning in Southern Vietnam. We retrospectively collected demographic and clinical data from the medical records (21 cases) and by telephone interview (39 cases) of patients admitted to seven hospitals in Southern Vietnam following ingestion of cicada flowers between 2008 and 2015. We also determined the species of Cordyceps present in the cicada flowers and performed a partial chemical analysis of the fungus. Sixty cases of toxic effects following ingestion of cicada flowers were documented. Symptom onset occurred within 60 minutes following ingestion. Symptoms included dizziness, vomiting, salivation, mydriasis, jaw stiffness, urinary retention, seizures, agitated delirium, hallucinations, somnolence and coma. None of the patients suffered liver or kidney injury. There was one fatality. The Cordyceps fungus involved in these poisoning was identified as Ophiocordyceps heteropoda. The presence of ibotenic acid was confirmed, but musimol and muscarine were absent. Cicada infected with Ophiocordyceps heteropoda in Vietnam contain ibotenic acid and are associated with a clinical syndrome consistent with its effects.

  19. A simple simulation model as a tool to assess alternative health care provider payment reform options in Vietnam.

    PubMed

    Cashin, Cheryl; Phuong, Nguyen Khanh; Shain, Ryan; Oanh, Tran Thi Mai; Thuy, Nguyen Thi

    2015-01-01

    Vietnam is currently considering a revision of its 2008 Health Insurance Law, including the regulation of provider payment methods. This study uses a simple spreadsheet-based, micro-simulation model to analyse the potential impacts of different provider payment reform scenarios on resource allocation across health care providers in three provinces in Vietnam, as well as on the total expenditure of the provincial branches of the public health insurance agency (Provincial Social Security [PSS]). The results show that currently more than 50% of PSS spending is concentrated at the provincial level with less than half at the district level. There is also a high degree of financial risk on district hospitals with the current fund-holding arrangement. Results of the simulation model show that several alternative scenarios for provider payment reform could improve the current payment system by reducing the high financial risk currently borne by district hospitals without dramatically shifting the current level and distribution of PSS expenditure. The results of the simulation analysis provided an empirical basis for health policy-makers in Vietnam to assess different provider payment reform options and make decisions about new models to support health system objectives.

  20. Determinants of breast-feeding within the first 6 months post-partum in rural Vietnam.

    PubMed

    Duong, Dat V; Lee, Andy H; Binns, Colin W

    2005-07-01

    This study explored the determinants of breast-feeding practices within the first 6 months post-partum among women residing in rural Vietnam. The study was conducted in Quang Xuong district, in the Thanh Hoa Province of Vietnam. In the first phase, 463 women were prospectively studied at weeks 1, 16 and 24 post-partum. During the second phase, 16 focus group discussions were undertaken to obtain complementary information. Exclusive breast-feeding dropped from 83.6% at week 1 to 43.6% at week 16 and by week 24, no infant was exclusively breast-fed. A logistic regression analysis found 'mother's education level', 'mother's decision-making on breast-feeding', 'mother's comfort to breast-feed in public places', 'father's occupation', 'feeding preference of father' and 'having sufficient food for the family' significantly influenced the exclusive breast-feeding practice. Qualitative data provided in-depth information on factors relating to mother, infant, close relatives and providers. Providing appropriate training and supportive supervision on breast-feeding counselling to health workers and supporting working mothers to exclusively breast-feed their infants through community mobilization were recommended to improve breast-feeding in rural Vietnam.

  1. Causes and determinants of inequity in maternal and child health in Vietnam

    PubMed Central

    2012-01-01

    Background Inequities in health are a major challenge for health care planners and policymakers globally. In Vietnam, rapid societal development presents a considerable risk for disadvantaged populations to be left behind. The aim of this review is to map the known causes and determinants of inequity in maternal and child health in Vietnam in order to promote policy action. Methods A review was performed through systematic searches of Pubmed and Proquest and manual searches of “grey literature.” A thematic content analysis guided by the conceptual framework suggested by the Commission on Social Determinants of Health was performed. Results More than thirty different causes and determinants of inequity in maternal and child health were identified. Some determinants worth highlighting were the influence of informal fees and the many testimonies of discrimination and negative attitudes from health staff towards women in general and ethnic minorities in particular. Research gaps were identified, such as a lack of studies investigating the influence of education on health care utilization, informal costs of care, and how psychosocial factors mediate inequity. Conclusions The evidence of corruption and discrimination as mediators of health inequity in Vietnam calls for attention and indicates a need for more structural interventions such as better governance and anti-discriminatory laws. More research is needed in order to fully understand the pathways of inequities in health in Vietnam and suggest areas for intervention for policy action to reach disadvantaged populations. PMID:22883138

  2. Predictors of depression among refugees from Vietnam: a longitudinal study of new arrivals.

    PubMed

    Hinton, W L; Tiet, Q; Tran, C G; Chesney, M

    1997-01-01

    The present study examined the impact of prearrival traumatic experiences and sociodemographic characteristics on future depression among Vietnamese and Chinese refugees from Vietnam. This is a longitudinal study of newly arrived refugees from Vietnam undergoing a mandatory health screening. A stratified consecutive sample of ethnic Chinese and ethnic Vietnamese refugees was drawn. The depression subscale of the Indochinese Hopkins symptoms checklist was administered to 114 refugees within the first 6 months after arrival in the United States and 12 to 18 months later. Ethnic Vietnamese reported more prearrival trauma compared with ethnic Chinese. Age was strongly correlated with time 2 depression among ethnic Vietnamese but not among ethnic Chinese. Multivariate linear regression analysis revealed that being a veteran, older, unattached, less proficient in English, ethnic Vietnamese, and more depressed at baseline predicted higher depression at follow-up. Although prearrival trauma predicted future depression, other sociodemographic characteristics assumed more importance with time.

  3. Coping With a Rising Power: Vietnam’s Hedging Strategy Toward China

    DTIC Science & Technology

    2018-03-01

    again argued that Vietnam used three primary strategies when dealing with China: first, utilize high -level party-to-party talks; second, promote...the period from 2001 to 2008, there were various incidents and causes of tension between China and Vietnam in the South China Sea, but the two... Tensions between Vietnam and China in the South China Sea have generally garnered international support for Vietnam from powerful partners, including

  4. Standing Strong: A Leadership Analysis of General David M. Shoup, USMC 22d Commandant of the Marine Corps

    DTIC Science & Technology

    2013-03-27

    American politics, the Vietnam War.134 In a speech at the Junior College World Affairs Day at Pierce College in Los Angeles in May 1966, which was...Johnson 14 May 1966 Now-retired General Shoup gave anti-Vietnam speech at Pierce College, Los Angeles, California 20 March 1968 Testified at...out•tnnd).ng profo1!BlanAl ekl.ll that cuntrlllotto~ t!l\\I~O&oural> lo to tbs dofenee Of Icol.Jlnd. ~11th hie ~ltol•ao nffol’te,end unu<rual

  5. A Systems Analysis View of the Vietnam War 1965-1972. Volume 9. Population Security

    DTIC Science & Technology

    1975-02-01

    CONPIDENTAL- DAA JJ* t I fe’. 18 CONFIDIBNITPALu3 C *’• SOUTH VIETNAM AMU STATUS VC cONUOU HAMMET I (I :I *, . ,A S~CONIDENTIAL GVN WRAL POMUITI0N CONTROL...ce they were not A-B hamlets at the beginning or end of the year. TABLE 2 A-B HAN BALMZ SHEET F(IC0R IWL RAWD HAMMET Pattern Types No. Population...is statistically insignificant in this equation . High kill ratios are associated with periods of high VC/NVA activity, so this model is consistent

  6. An analysis of the development of port operation in Da Nang Port, Vietnam

    NASA Astrophysics Data System (ADS)

    Nguyen, T. D. H.; Cools, M.

    2018-04-01

    This paper presents the current operating status in Da Nang Port, Vietnam in the period 2012-2016. The port operation had positive changes that were reflected by a significant increase in total throughputs, especially containerized cargo volumes. Classical decomposition techniques are used to find trend-cycle and seasonal components of monthly throughput flows. Appropriate predictive models of different kinds of throughputs are proposed. Finally, a development strategy towards containerization and investment policies in facilities, equipment, and infrastructure are suggested based on the predictive results.

  7. Southeast Asia Report, No. 1300, Vietnam, Tap Chi Cong San, No. 3, March 1983

    DTIC Science & Technology

    1983-06-14

    Countryside and the New Life (pp 49-53) ( True Giang) 62 -a - IIII - ASIA - 107] The Imperialists and Reactionaries Cannot Reverse the Situation (PP...and, at the same time, establish the system of centralism, which is to be understood as true democracy and which encompasses the capability—a...energies and the fighting determination of troops. If they did not become the true masters of the 51 battlefield and did not have a flesh and

  8. A Study of Strategic Lessons Learned in Vietnam. Volume 6. Conduct of the War. Book 2. Functional Analyses

    DTIC Science & Technology

    1980-05-02

    for rebuild. "* The rapid buildup in RVN without mobilizing the Reserve Component made it necessary to draw on materiel and equipment in or scheduled ...been restored to service by 1957. By 1960 the system within RVN was operating both scheduled freight and passenger trains on mucii)of the line...established under a concept approved in April 1963 to provide a centralized source of logistic data for the Pacific Theater. It was scheduled to be

  9. Psychosocial Readjustment of Canadian Vietnam Veterans.

    ERIC Educational Resources Information Center

    Stretch, Robert H.

    1991-01-01

    Examined the psychosocial readjustment of 164 Canadian Vietnam veterans. Found significantly greater rates of posttraumatic stress disorder (PTSD) compared with U.S. Vietnam veterans and evidence of other psychosocial adjustment problems. Suggests that problems are a result, in part, of prolonged isolation from other Vietnam veterans, lack of…

  10. 32 CFR 270.2 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.2... Democratic Republic of Vietnam, established under this part. (f) Eligible person. A person determined by the... under the auspices of the government of South Vietnam and the U.S. Military Assistance Command Vietnam...

  11. 32 CFR 270.2 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.2... Democratic Republic of Vietnam, established under this part. (f) Eligible person. A person determined by the... under the auspices of the government of South Vietnam and the U.S. Military Assistance Command Vietnam...

  12. 32 CFR 270.2 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.2... Democratic Republic of Vietnam, established under this part. (f) Eligible person. A person determined by the... under the auspices of the government of South Vietnam and the U.S. Military Assistance Command Vietnam...

  13. 32 CFR 270.2 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.2... Democratic Republic of Vietnam, established under this part. (f) Eligible person. A person determined by the... under the auspices of the government of South Vietnam and the U.S. Military Assistance Command Vietnam...

  14. The Vietnam Conflict: "America's Best Documented War?"

    ERIC Educational Resources Information Center

    Shaughnessy, C. A.

    1991-01-01

    Discusses problems with military documentation during the Vietnam War. Reports poor record keeping practices, destruction of permanent files, and mislabeled and missing records. Describes the National Archives' Vietnam project that organized and preserved the remaining military records. Concludes that the Vietnam War was better documented than the…

  15. Hydropower generation, flood control and dam cascades: A national assessment for Vietnam

    NASA Astrophysics Data System (ADS)

    Nguyen-Tien, Viet; Elliott, Robert J. R.; Strobl, Eric A.

    2018-05-01

    Vietnam is a country with diverse terrain and climatic conditions and a dependency on hydropower for a significant proportion of its power needs and as such, is particularly vulnerable to changes in climate. In this paper we apply SWAT (Soil and Water Assessment Tool) derived discharge simulation results coupled with regression analysis to estimate the performance of hydropower plants for Vietnam between 1995 and mid-2014 when both power supply and demand increased rapidly. Our approach is to examine the watershed formed from three large inter-boundary basins: The Red River, the Vietnam Coast and the Lower Mekong River, which have a total area of 977,964 km2. We then divide this area into 7,887 sub-basins with an average area of 131.6 km2 (based on level 12 of HydroSHEDS/HydroBASINS datasets) and 53,024 Hydrological Response Units (HRUs). Next we simulate river flow for the 40 largest hydropower plants across Vietnam. Our validation process demonstrates that the simulated flows are significantly correlated with the gauged inflows into these dams and are able to serve as a good proxy for the inflows into hydropower dams in our baseline energy regression, which captures 87.7% of the variation in monthly power generation. In other results we estimate that large dams sacrifice on average around 18.2% of their contemporaneous production for the purpose of flood control. When we assess Vietnam's current alignment of dams we find that the current cascades of large hydropower dams appear to be reasonably efficient: each MWh/day increase in upstream generation adds 0.146 MWh/day to downstream generation. The study provides evidence for the multiple benefits of a national system of large hydropower dams using a cascade design. Such a system may help overcome future adverse impacts from changes in climate conditions. However, our results show that there is still room for improvement in the harmonization of cascades in some basins. Finally, possible adverse hydro-ecological impacts due to the proliferation of large upstream dams, including those located beyond Vietnam's border, need to be carefully considered.

  16. Resource Use Among Rural Agricultural Households Near Protected Areas in Vietnam: The Social Costs of Conservation and Implications for Enforcement

    NASA Astrophysics Data System (ADS)

    McElwee, Pamela D.

    2010-01-01

    This article examines the use of forests in a protected area by nearby agriculturalists in central Vietnam. Research indicates that the majority of rural farmers interviewed who lived near a state designated protected area were receiving both subsistence and cash incomes from forest-based activities, primarily from the collection of forest products. However, much of the collection of forest produce was officially illegal, as it occurred in state protected forests, and interdiction efforts were on the increase. Yet, little attention has been paid in Vietnam to the need for income substitution for households who lose access to forest produce as a result of conservation enforcement, particularly in the case of farmers who live near, but not in, protected areas; their resources use has been ‘invisible’ due to a lack of attention and research on the topic. This misunderstanding of the importance of forests to rural farmers has the potential to result in households facing adverse welfare and livelihood outcomes as protected areas boundaries are tightened, and local communities face increased opportunity costs due to stricter conservation enforcement. The article concludes that substitution for loss of income due to conservation activities would best be achieved through carefully targeted interventions to specific high-impact and high-dependency households. Additionally, investments in new sources of wage labor and other low capital-input activities, rather than in agriculture, would likely be of most benefit.

  17. High variation and strong phylogeographic pattern among cpDNA haplotypes in Taxus wallichiana (Taxaceae) in China and North Vietnam.

    PubMed

    Gao, L M; Möller, M; Zhang, X-M; Hollingsworth, M L; Liu, J; Mill, R R; Gibby, M; Li, D-Z

    2007-11-01

    We studied the phylogeography of Chinese yew (Taxus wallichiana), a tree species distributed over most of southern China and adjacent regions. A total of 1235 individuals from 50 populations from China and North Vietnam were analysed for chloroplast DNA variation using polymerase chain reaction-restriction fragment length polymorphism of the trnL-F intron-spacer region. A total of 19 different haplotypes were distinguished. We found a very high level of population differentiation and a strong phylogeographic pattern, suggesting low levels of recurrent gene flow among populations. Haplotype differentiation was most marked along the boundary between the Sino-Himalayan and Sino-Japanese Forest floristic subkingdoms, with only one haplotype being shared among these two subkingdoms. The Malesian and Sino-Himalayan Forest subkingdoms had five and 10 haplotypes, respectively, while the relatively large Sino-Japanese Forest subkingdom had only eight. The strong geography-haplotype correlation persisted at the regional floristic level, with most regions possessing a unique set of haplotypes, except for the central China region. Strong landscape effects were observed in the Hengduan and Dabashan mountains, where steep mountains and valleys might have been natural dispersal barriers. The molecular phylogenetic data, together with the geographic distribution of the haplotypes, suggest the existence of several localized refugia during the last glaciation from which the present-day distribution may be derived. The pattern of haplotype distribution across China and North Vietnam corresponded well with the current taxonomic delineation of the three intraspecific varieties of T. wallichiana.

  18. 78 FR 45271 - Welded Stainless Steel Pressure Pipe From Malaysia, Thailand, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-26

    ... Stainless Steel Pressure Pipe From Malaysia, Thailand, and Vietnam Determination On the basis of the record... reason of imports from Malaysia, Thailand, and Vietnam of welded stainless steel pressure pipe, provided... pipe from Malaysia, Thailand, and Vietnam. Accordingly, effective May 16, 2013, the Commission...

  19. 78 FR 764 - Frozen Warmwater Shrimp From China, Ecuador, India, Indonesia, Malaysia, Thailand, and Vietnam...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-04

    ... Shrimp From China, Ecuador, India, Indonesia, Malaysia, Thailand, and Vietnam; Institution of..., Thailand, and Vietnam of frozen warmwater shrimp, provided for in subheadings 0306.17.00, 1605.21.10 and... the Governments of China, Ecuador, India, Indonesia, Malaysia, Thailand, and Vietnam. Unless the...

  20. 77 FR 20356 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Extension of Preliminary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-04

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-552-801] Certain Frozen Fish Fillets... frozen fish fillets (``fish fillets'') from the Socialist Republic of Vietnam (``Vietnam''). These... on fish fillets from Vietnam.\\1\\ On October 3, 2011 the Department published a notice of initiation...

  1. 75 FR 22424 - Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-28

    ... Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam AGENCY: United States International Trade... antidumping duty orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and Vietnam. SUMMARY... duty orders on frozen warmwater shrimp from Brazil, China, India, Thailand, and Vietnam would be likely...

  2. 75 FR 1078 - Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-08

    ... Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam AGENCY: United States International Trade... warmwater shrimp from Brazil, China, India, Thailand, and Vietnam. SUMMARY: The Commission hereby gives... shrimp from Brazil, China, India, Thailand, and Vietnam would be likely to lead to continuation or...

  3. 75 FR 48724 - Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-11

    ... Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam AGENCY: United States International Trade... warmwater shrimp from Brazil, China, India, Thailand, and Vietnam. SUMMARY: The Commission hereby gives... warmwater shrimp from Brazil, China, India, Thailand, and Vietnam would be likely to lead to continuation or...

  4. 75 FR 57501 - Frozen Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-21

    ... Warmwater Shrimp From Brazil, China, India, Thailand, and Vietnam AGENCY: United States International Trade... warmwater shrimp from Brazil, China, India, Thailand, and Vietnam. SUMMARY: The Commission hereby gives... warmwater shrimp from Brazil, China, India, Thailand, and Vietnam would be likely to lead to continuation or...

  5. 76 FR 65178 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-20

    ... Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary Results of Antidumping Duty... antidumping duty order on certain frozen warmwater shrimp (``shrimp'') from the Socialist Republic of Vietnam... warmwater shrimp from Vietnam. See Initiation of Antidumping Duty Administrative Reviews, Requests for...

  6. 38 CFR 21.5020 - Post-Vietnam era veterans' educational assistance.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2012-07-01 2012-07-01 false Post-Vietnam era veterans... AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Post-Vietnam Era Veterans' Educational Assistance Under 38 U.S.C. Chapter 32 General § 21.5020 Post-Vietnam era veterans' educational assistance...

  7. 38 CFR 21.5020 - Post-Vietnam era veterans' educational assistance.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2013-07-01 2013-07-01 false Post-Vietnam era veterans... AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Post-Vietnam Era Veterans' Educational Assistance Under 38 U.S.C. Chapter 32 General § 21.5020 Post-Vietnam era veterans' educational assistance...

  8. 32 CFR 270.6 - Standards of eligibility.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) MISCELLANEOUS COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM... payments under this part if such person: (1) Was captured and incarcerated by North Vietnam as a result of... People's Army of North Vietnam or provided active assistance to the Government of North Vietnam or forces...

  9. 32 CFR 270.6 - Standards of eligibility.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) MISCELLANEOUS COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM... payments under this part if such person: (1) Was captured and incarcerated by North Vietnam as a result of... People's Army of North Vietnam or provided active assistance to the Government of North Vietnam or forces...

  10. 38 CFR 21.5020 - Post-Vietnam era veterans' educational assistance.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Post-Vietnam era veterans... AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Post-Vietnam Era Veterans' Educational Assistance Under 38 U.S.C. Chapter 32 General § 21.5020 Post-Vietnam era veterans' educational assistance...

  11. 38 CFR 21.5020 - Post-Vietnam era veterans' educational assistance.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Post-Vietnam era veterans... AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Post-Vietnam Era Veterans' Educational Assistance Under 38 U.S.C. Chapter 32 General § 21.5020 Post-Vietnam era veterans' educational assistance...

  12. 32 CFR 270.6 - Standards of eligibility.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) MISCELLANEOUS COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM... payments under this part if such person: (1) Was captured and incarcerated by North Vietnam as a result of... People's Army of North Vietnam or provided active assistance to the Government of North Vietnam or forces...

  13. Vietnam: Historians at War

    ERIC Educational Resources Information Center

    Moyar, Mark

    2008-01-01

    Although the Vietnam War ended more than thirty years ago, historians remain as divided on what happened as the American people were during the war. Mark Moyar maps the ongoing battle between "orthodox" and "revisionist" Vietnam War historians: the first group, those who depict Vietnam as a bad war that the United States should…

  14. 38 CFR 21.5020 - Post-Vietnam era veterans' educational assistance.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 2 2014-07-01 2014-07-01 false Post-Vietnam era veterans... AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Post-Vietnam Era Veterans' Educational Assistance Under 38 U.S.C. Chapter 32 General § 21.5020 Post-Vietnam era veterans' educational assistance...

  15. 32 CFR 270.6 - Standards of eligibility.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) MISCELLANEOUS COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM... payments under this part if such person: (1) Was captured and incarcerated by North Vietnam as a result of... People's Army of North Vietnam or provided active assistance to the Government of North Vietnam or forces...

  16. 3 CFR - Presidential Determination on a U.S. Export-Import Bank Transaction With Vietnam

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Bank Transaction With Vietnam Presidential Documents Other Presidential Documents Presidential... With Vietnam Memorandum for the Secretary of State Pursuant to section 2(b)(2)(D) of the Export-Import...,890 to the Vietnam Post and Telecommunications Group, a wholly state-owned company, for the purchase...

  17. 32 CFR 270.6 - Standards of eligibility.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) MISCELLANEOUS COMPENSATION OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM... payments under this part if such person: (1) Was captured and incarcerated by North Vietnam as a result of... People's Army of North Vietnam or provided active assistance to the Government of North Vietnam or forces...

  18. Making History Come Alive with the Nonfiction Literature of the Vietnam War.

    ERIC Educational Resources Information Center

    Johannessen, Larry R.

    2003-01-01

    Considers student response to nonfiction Vietnam War literature and discusses why students should study Vietnam War nonfiction. Presents strategies for teaching nonfiction Vietnam War literature. Presents follow-up research and writing activities that are designed to enable students to connect reading, writing, and thinking. Concludes that the…

  19. Vietnam and American Government Textbooks.

    ERIC Educational Resources Information Center

    Cline, Paul C.; Eksterowicz, Anthony J.

    1998-01-01

    Discusses the importance of studying the Vietnam War. Attempts to illustrate the amount and quality of coverage of the Vietnam War in U.S. government textbooks. Explains that the amount of space devoted to the war in most of these texts remains inadequate for student understanding of the Vietnam War. (CMK)

  20. 31 CFR 500.558 - Accounts of blocked partnerships.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... are issued unblocking partnerships established under the laws of North Korea, North Viet-Nam, Cambodia..., have emigrated from North Korea, North Viet-Nam, Cambodia, or South Viet-Nam and have established... located. (b) Where one or more partners, whether general or limited, is in North Korea, North Viet-Nam...

  1. Willingness to Pay for Social Health Insurance in Central Vietnam.

    PubMed

    Nguyen, Lan Hoang; Hoang, Anh Thuan Duc

    2017-01-01

    A social health insurance (SHI) program was implemented in Vietnam in 1992. Participation is compulsory for some groups, such as formal-sector workers and voluntary for other groups. In 2013, 68% of the total population was covered by SHI, with most enrollees from compulsory groups. Enrollment has remained low among persons whose enrollment is voluntary. As a result, households face financial risk due to high out-of-pocket payments for health care. The goal of this study is to identify willingness to pay (WTP) for the SHI scheme among persons whose enrollment is voluntary and to examine factors that influence their choice. Three hundred thirty-one uninsured persons from three districts and one city of Thua Thien Hue province were interviewed face to face using a structured questionnaire. Contingent valuation technique was used to assess the WTP among the study participants. Each individual was asked to choose the maximum premium they were willing to pay for a health insurance card per year with three copayment levels of 0, 10, and 20%. Seven premium levels were offered ranging from 0 to 900,000 Vietnamese Dong (VND) (42.12 USD). The mean WTP of respondents for each scenario was estimated. Multiple linear regression analysis was used to identify factors influencing WTP for SHI. The survey found that 73.1, 72.2, and 71.6%, respectively, for each copayment level, of the respondents would agree to participate in the SHI scheme and are willing to pay an annual premium of 578,926 VND (27.1 USD); 473,222 VND (22.1 USD); and 401,266 VND (18.8 USD) at the copayment levels of 0, 10, and 20%, respectively. The WTP for SHI is influenced by knowledge of SHI at all copayment levels ( p value < 0.05). The more knowledge about SHI individuals have, the higher the WTP amount. Chronic disease was related to WTP only at a copayment level of 20% ( p  = 0.049). Enhanced awareness of the benefits of SHI among the population should contribute to expanding SHI coverage in Vietnam.

  2. The Changing Role of Vietnam in Southeast Asia: Beyond the Cold War

    DTIC Science & Technology

    1991-06-01

    Hanoi ," International Affairs (Moscow) (September 1989): 74. 25 D. VIETNAM’S FOREIGN POLICY CONCERNS A resolution of the Congress says that the goal...interests 19 ABSTRACT (Continue on reverse if necessary and identify by block number) This thesis examines the United States relationship with Vietnam...in the aftermath of the Vietnam War and the end of the Cold War. Even though Vietnam’s path toward progress and growth is hindered by internal and

  3. 78 FR 10210 - Utility Scale Wind Towers From China and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-13

    ...)] Utility Scale Wind Towers From China and Vietnam Determinations On the basis of the record \\1\\ developed... with material injury by reason of imports of utility scale wind towers from China and Vietnam, provided... of imports of utility scale wind towers from China and Vietnam. Commissioner Dean A. Pinkert...

  4. 75 FR 38716 - Safety Zone; Vietnam Veterans of America Fireworks Display, Brookings, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-06

    ...-AA00 Safety Zone; Vietnam Veterans of America Fireworks Display, Brookings, OR AGENCY: Coast Guard, DHS... waters of Pelican Bay and the Pacific Ocean for the Vietnam Veterans of America Fireworks Display near... period will have passed. Basis and Purpose The Vietnam Veterans of America are holding a fireworks...

  5. The Vietnam Era Veteran: Challenge for Change. Administrator's Seminars on Vietnam Era Veterans.

    ERIC Educational Resources Information Center

    Veterans Administration, Washington, DC.

    This report covers 5 regional seminars designed to increase the Veterans Administration understanding of Vietnam Era veterans. The process used was one of involvement and interaction of Veterans Administration officials with returning Vietnam Era veterans and other young people. After the traditional introductions and keynote remarks, there was a…

  6. 78 FR 64009 - Frozen Warmwater Shrimp From China, Ecuador, India, Malaysia, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... Warmwater Shrimp From China, Ecuador, India, Malaysia, and Vietnam Determinations On the basis of the record... from China, Ecuador, India, Malaysia, and Vietnam of frozen warmwater shrimp, provided for in... China, Ecuador, India, Malaysia, and Vietnam.\\2\\ \\1\\ The record is defined in sec. 207.2(f) of the...

  7. 78 FR 11221 - Frozen Warmwater Shrimp From China, Ecuador, India, Indonesia, Malaysia, Thailand, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-15

    ... Shrimp From China, Ecuador, India, Indonesia, Malaysia, Thailand, and Vietnam Determination On the basis... injured by reason of imports from China, Ecuador, India, Indonesia, Malaysia, Thailand, and Vietnam of... China, Ecuador, India, Indonesia, Malaysia, Thailand, and Vietnam.\\2\\ \\1\\ The record is defined in sec...

  8. 77 FR 73430 - Steel Wire Garment Hangers From the Socialist Republic of Vietnam: Preliminary Affirmative...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-10

    ... DEPARTMENT OF COMMERCE International Trade Administration [C-552-813] Steel Wire Garment Hangers... respect to imports of steel wire garment hangers from the Socialist Republic of Vietnam (Vietnam) with the... Department of Commerce building. \\3\\ See Steel Wire Garment Hangers From the Socialist Republic of Vietnam...

  9. 77 FR 28356 - Steel Wire Garment Hangers From the Socialist Republic of Vietnam and Taiwan: Postponement of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-14

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-552-812, A-583-849] Steel Wire... investigations of steel wire garment hangers from the Socialist Republic of Vietnam (``Vietnam'') and Taiwan.\\1...\\ See Steel Wire Garment Hangers From the Socialist Republic of Vietnam and Taiwan: Initiation of...

  10. 77 FR 9701 - Steel Wire Garment Hangers From Taiwan And Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-17

    ...)] Steel Wire Garment Hangers From Taiwan And Vietnam Determinations On the basis of the record \\1... injured by reason of imports from Taiwan and Vietnam of steel wire garment hangers, provided for in... the United States at less than fair value (LTFV) and steel wire garment hangers from Vietnam that are...

  11. 75 FR 60730 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Initiation of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-01

    ... Shrimp From the Socialist Republic of Vietnam: Initiation of Antidumping Duty New Shipper Review AGENCY... new shipper review (``NSR'') of the antidumping duty order on certain frozen warmwater shrimp (``shrimp'') from the Socialist Republic of Vietnam (``Vietnam''), received on August 26, 2010, meets the...

  12. Treatment Failure of Dihydroartemisinin/Piperaquine for Plasmodium falciparum Malaria, Vietnam.

    PubMed

    Phuc, Bui Quang; Rasmussen, Charlotte; Duong, Tran Thanh; Dong, Le Than; Loi, Mai Anh; Ménard, Didier; Tarning, Joel; Bustos, Dorina; Ringwald, Pascal; Galappaththy, Gawrie Loku; Thieu, Nguyen Quang

    2017-04-01

    We conducted a study in Binh Phuoc, Vietnam, in 2015 on the therapeutic efficacy of dihydroartemisinin/piperaquine for Plasmodium falciparum malaria. A high number of treatment failures (14/40) was found, and piperaquine resistance in Vietnam was confirmed. A change in the malaria treatment policy for Vietnam is in process.

  13. 76 FR 41760 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Extension of Final...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-15

    ... Shrimp From the Socialist Republic of Vietnam: Extension of Final Results of Antidumping Duty New Shipper... new shipper review of certain frozen warmwater shrimp from the Socialist Republic of Vietnam (``Vietnam''). The review covers the period February 1, 2010, through July 31, 2010. DATES: Effective Date...

  14. 76 FR 36519 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Extension of Final...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-22

    ... Shrimp From the Socialist Republic of Vietnam: Extension of Final Results of Antidumping Duty... the administrative review of certain frozen warmwater shrimp from the Socialist Republic of Vietnam (``Vietnam''). The review covers the period February 1, 2009, through January 31, 2010. DATES: Effective Date...

  15. 77 FR 2958 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-20

    ... Shrimp From the Socialist Republic of Vietnam: Extension of Preliminary Results of Antidumping Duty... duty order on certain frozen warmwater shrimp (``shrimp'') from the Socialist Republic of Vietnam (``Vietnam'') to February 28, 2012. The period of review (``POR'') is February 1, 2010, through January 31...

  16. 38 CFR 21.8012 - Vocational training program for certain children of Vietnam veterans-spina bifida and covered...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... program for certain children of Vietnam veterans-spina bifida and covered birth defects. 21.8012 Section... REHABILITATION AND EDUCATION Vocational Training and Rehabilitation for Certain Children of Vietnam Veterans... children of Vietnam veterans—spina bifida and covered birth defects. VA will provide an evaluation to an...

  17. 76 FR 61088 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Initiation of New Shipper...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-03

    ... From the Socialist Republic of Vietnam: Initiation of New Shipper Reviews AGENCY: Import Administration... antidumping duty order on certain frozen fish fillets from the Socialist Republic of Vietnam, received between... on certain frozen fish fillets from the Socialist Republic of Vietnam was published in the Federal...

  18. Vietnam Revisited.

    ERIC Educational Resources Information Center

    Esper, George

    1990-01-01

    Reflections of an Associated Press special correspondent on a return visit to Vietnam 15 years after the war. Discusses the social and economic impact of the war on Vietnam. Examines the plight of the Vietnamese who served in the U.S. military, discussing the problems of Amerasians. Recounts the efforts of U.S. veterans to rebuild Vietnam. (RW)

  19. 76 FR 68208 - Circular Welded Carbon-Quality Steel Pipe From India, Oman, United Arab Emirates, and Vietnam...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-03

    ... (Preliminary)] Circular Welded Carbon-Quality Steel Pipe From India, Oman, United Arab Emirates, and Vietnam... carbon-quality steel pipe from India, Oman, United Arab Emirates, and Vietnam, provided for in... Governments of India, Oman, United Arab Emirates, and Vietnam. Unless the Department of Commerce extends the...

  20. English Takes Root in Vietnam.

    ERIC Educational Resources Information Center

    Yablonka, Marc Phillip

    1999-01-01

    English has emerged as an important language in Vietnam, and English-as-a-Second-Language (ESL) education exists at all levels of schooling and in business. This paper explains Vietnam's post-embargo quest for English, the effect of economic hardships on education in Vietnam, incoming ESL instructors, and the past, present, and future of languages…

  1. Serum 2,3,7,8-tetrachlorodibenzo-p-dioxin levels in US Army Vietnam-era veterans

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    1988-09-02

    This study investigates whether military records can be used to identify US Army Vietnam veterans who were likely to be exposed to the herbicide Agent Orange. Serum levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), a toxic contaminant in Agent Orange, were obtained for 646 ground combat troops who served in heavily sprayed areas of Vietnam and for 97 veterans who did not serve in Vietnam. The distributions of current TCDD levels in Vietnam and non-Vietnam veterans were nearly identical (mean in each group, approx. = 4 parts per trillion (ppt)). Only two men (both Vietnam veterans) had clearly elevated levels (> 20 ppt).more » Levels of TCDD did not tend to increase with greater likelihood of exposure to Agent Orange, as estimated from either military records of self-reported exposure. This study is consistent with other studies and suggests that most US Army ground troops who served in Vietnam were not heavily exposed to TCDD, except perhaps men whose jobs involved handling herbicides.« less

  2. Serum 2,3,7,8-tetrachlorodibenzo-p-dioxin levels in US Army Vietnam-era veterans. The Centers for Disease Control Veterans Health Studies

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    1988-09-02

    This study investigates whether military records can be used to identify US Army Vietnam veterans who were likely to be exposed to the herbicide Agent Orange. Serum levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), a toxic contaminant in Agent Orange, were obtained for 646 ground combat troops who served in heavily sprayed areas of Vietnam and for 97 veterans who did not serve in Vietnam. The distributions of current TCDD levels in Vietnam and non-Vietnam veterans were nearly identical (mean in each group, approximately equal to 4 parts per trillion (ppt)). Only two men (both Vietnam veterans) had clearly elevated levels (greater thanmore » 20 ppt). Levels of TCDD did not tend to increase with greater likelihood of exposure to Agent Orange, as estimated from either military records or self-reported exposure. This study is consistent with other studies and suggests that most US Army ground troops who served in Vietnam were not heavily exposed to TCDD, except perhaps men whose jobs involved handling herbicides.« less

  3. Prevalence of Posttraumatic Stress Disorder in Vietnam-Era Women Veterans: The Health of Vietnam-Era Women's Study (HealthVIEWS).

    PubMed

    Magruder, Kathryn; Serpi, Tracey; Kimerling, Rachel; Kilbourne, Amy M; Collins, Joseph F; Cypel, Yasmin; Frayne, Susan M; Furey, Joan; Huang, Grant D; Gleason, Theresa; Reinhard, Matthew J; Spiro, Avron; Kang, Han

    2015-11-01

    Many Vietnam-era women veterans served in or near war zones and may have experienced stressful or traumatic events during their service. Although posttraumatic stress disorder (PTSD) is well studied among men who served in Vietnam, no major epidemiologic investigation of PTSD among women has been performed. To assess (1) the onset and prevalence of lifetime and current PTSD for women who served during the Vietnam era, stratified by wartime location (Vietnam, near Vietnam, or the United States), and (2) the extent to which wartime location was associated with PTSD, with adjustment for demographics, service characteristics, and wartime exposures. Survey of 8742 women who were active-duty military personnel in the US Armed Forces at any time from July 4, 1965, through March 28, 1973, and alive as of survey receipt as part of Department of Veterans Affairs Cooperative Study 579, HealthVIEWS. Data were obtained from mailed and telephone surveys from May 16, 2011, through August 5, 2012, and analyzed from June 26, 2013, through July 30, 2015. Lifetime and current PTSD as measured by the PTSD module of the Composite International Diagnostic Interview, version 3.0; onset of PTSD; and wartime experiences as measured by the Women's Wartime Exposure Scale-Revised. Among the 4219 women (48.3%) who completed the survey and a telephone interview, the weighted prevalence (95% CI) of lifetime PTSD was 20.1% (18.3%-21.8%), 11.5% (9.1%-13.9%), and 14.1% (12.4%-15.8%) for the Vietnam, near-Vietnam, and US cohorts, respectively. The weighted prevalence (95% CI) of current PTSD was 15.9% (14.3%-17.5%), 8.1% (6.0%-10.2%), and 9.1% (7.7%-10.5%) for the 3 cohorts, respectively. Few cases of PTSD among the Vietnam or near-Vietnam cohorts were attributable to premilitary onset (weighted prevalence, 2.9% [95% CI, 2.2%-3.7%] and 2.9% [95% CI, 1.7%-4.2%], respectively). Unadjusted models for lifetime and current PTSD indicated that women who served in Vietnam were more likely to meet PTSD criteria than women who mainly served in the United States (odds ratio [OR] for lifetime PTSD, 1.53 [95% CI, 1.28-1.83]; OR for current PTSD, 1.89 [95% CI, 1.53-2.33]). When we adjusted for wartime exposures, serving in Vietnam or near Vietnam did not increase the odds of having current PTSD (adjusted ORs, 1.05 [95% CI, 0.75-1.46] and 0.77 [95% CI, 0.52-1.14], respectively). The prevalence of PTSD for the Vietnam cohort was higher than previously documented. Vietnam service significantly increased the odds of PTSD relative to US service; this effect appears to be associated with wartime exposures, especially sexual discrimination or harassment and job performance pressures. Results suggest long-lasting mental health effects of Vietnam-era service among women veterans.

  4. Climate Change Impact On Mekong Delta of Vietnam in recent years

    NASA Astrophysics Data System (ADS)

    Le, L. T. X., III

    2015-12-01

    In recent years, the climate change signal increase globally. Abnormal changes of weather tends increasingly detrimental to human life, such as natural disasters occur with increasing level of more severe. Climate change is one the biggest challenges, and is a potential threat to humans. The impact of climate change increases the number and extent of the disaster fierce exists as typhoons, floods, droughts ... Global warming and sea level rise increases the area of flooding, saline intrusion and erosion in the delta region may cause farmers to lose the opportunity to produce, source of life their only. Impact of climate change on people in the community, but poor farmers in the developing countries like our country, women are the most severe consequences In this section, we summarize changes in climate on the territory of Vietnam, especially in Mekong Delta evaluate causes and its relationship to changes in global climate and region. Along with the analysis of characteristics of climate changes over time and through space to help the evolution of the standard deviation (average deviation from the standard of the period from 1971 to 2015) may indicate that the characteristic gas scenes took place related to global climate change ... Vietnam's territory stretches over approximately 15 latitude, the terrain is very complex, located in the interior full of tropical Southeast Asia. Vietnam climate strongly influenced by the Asian monsoon, monsoon and Northern Hemisphere especially the ENSO activity in the equatorial region and the Pacific Ocean. Climate Vietnam abundant and diversified, with strong ties to the region and globally.

  5. Agro-Environmental Determinants of Avian Influenza Circulation: A Multisite Study in Thailand, Vietnam and Madagascar

    PubMed Central

    Paul, Mathilde C.; Gilbert, Marius; Desvaux, Stéphanie; Rasamoelina Andriamanivo, Harena; Peyre, Marisa; Khong, Nguyen Viet; Thanapongtharm, Weerapong; Chevalier, Véronique

    2014-01-01

    Outbreaks of highly pathogenic avian influenza have occurred and have been studied in a variety of ecological systems. However, differences in the spatial resolution, geographical extent, units of analysis and risk factors examined in these studies prevent their quantitative comparison. This study aimed to develop a high-resolution, comparative study of a common set of agro-environmental determinants of avian influenza viruses (AIV) in domestic poultry in four different environments: (1) lower-Northern Thailand, where H5N1 circulated in 2004–2005, (2) the Red River Delta in Vietnam, where H5N1 is circulating widely, (3) the Vietnam highlands, where sporadic H5N1 outbreaks have occurred, and (4) the Lake Alaotra region in Madagascar, which features remarkable similarities with Asian agro-ecosystems and where low pathogenic avian influenza viruses have been found. We analyzed H5N1 outbreak data in Thailand in parallel with serological data collected on the H5 subtype in Vietnam and on low pathogenic AIV in Madagascar. Several agro-environmental covariates were examined: poultry densities, landscape dominated by rice cultivation, proximity to a water body or major road, and human population density. Relationships between covariates and AIV circulation were explored using spatial generalized linear models. We found that AIV prevalence was negatively associated with distance to the closest water body in the Red River Delta, Vietnam highlands and Madagascar. We also found a positive association between AIV and duck density in the Vietnam highlands and Thailand, and with rice landscapes in Thailand and Madagascar. Our findings confirm the important role of wetlands-rice-ducks ecosystems in the epidemiology of AI in diverse settings. Variables influencing circulation of the H5 subtype in Southeast Asia played a similar role for low pathogenic AIV in Madagascar, indicating that this area may be at risk if a highly virulent strain is introduced. PMID:25029441

  6. Chronological, geographical, and seasonal trends of human cases of avian influenza A (H5N1) in Vietnam, 2003-2014: a spatial analysis.

    PubMed

    Manabe, Toshie; Yamaoka, Kazue; Tango, Toshiro; Binh, Nguyen Gia; Co, Dao Xuan; Tuan, Nguyen Dang; Izumi, Shinyu; Takasaki, Jin; Chau, Ngo Quy; Kudo, Koichiro

    2016-02-04

    Human cases of highly pathogenic avian influenza A (H5N1) virus infection continue to occur in Southeast Asia. The objective of this study was to identify when and where human H5N1 cases have occurred in Vietnam and how the situation has changed from the beginning of the H5N1 outbreaks in 2003 through 2014, to assist with implementing methods of targeted disease management. We assessed the disease clustering and seasonal variation of human H5N1 cases in Vietnam to evaluate the geographical and monthly timing trends. The clustering of H5N1 cases and associated mortality were examined over three time periods: the outbreak period (2003-2005), the post-outbreak (2006-2009), and the recent period (2010-2014) using the flexibly shaped space-time scan statistic. The most likely cases to co-cluster and the elevated risks for incidence and mortality were assessed via calculation of the relative risk (RR). The H5N1 case seasonal variation was analysed as the cyclic trend in incidence data using Roger's statistical test. Between 2003 and 2005, H5N1 cases (RR: 2.15, p = 0.001) and mortality (RR: 2.49, p = 0.021) were significantly clustered in northern Vietnam. After 2010, H5N1 cases tended to occur on the border with Cambodia in the south, while H5N1 mortality clustered significantly in the Mekong delta area (RR: 6.62, p = 0.002). A significant seasonal variation was observed (p < 0.001), with a higher incidence of morbidity in December through April. These findings indicate that clinical preparedness for H5N1 in Vietnam needs to be strengthened in southern Vietnam in December-April.

  7. Agro-environmental determinants of avian influenza circulation: a multisite study in Thailand, Vietnam and Madagascar.

    PubMed

    Paul, Mathilde C; Gilbert, Marius; Desvaux, Stéphanie; Andriamanivo, Harena Rasamoelina; Peyre, Marisa; Khong, Nguyen Viet; Thanapongtharm, Weerapong; Chevalier, Véronique

    2014-01-01

    Outbreaks of highly pathogenic avian influenza have occurred and have been studied in a variety of ecological systems. However, differences in the spatial resolution, geographical extent, units of analysis and risk factors examined in these studies prevent their quantitative comparison. This study aimed to develop a high-resolution, comparative study of a common set of agro-environmental determinants of avian influenza viruses (AIV) in domestic poultry in four different environments: (1) lower-Northern Thailand, where H5N1 circulated in 2004-2005, (2) the Red River Delta in Vietnam, where H5N1 is circulating widely, (3) the Vietnam highlands, where sporadic H5N1 outbreaks have occurred, and (4) the Lake Alaotra region in Madagascar, which features remarkable similarities with Asian agro-ecosystems and where low pathogenic avian influenza viruses have been found. We analyzed H5N1 outbreak data in Thailand in parallel with serological data collected on the H5 subtype in Vietnam and on low pathogenic AIV in Madagascar. Several agro-environmental covariates were examined: poultry densities, landscape dominated by rice cultivation, proximity to a water body or major road, and human population density. Relationships between covariates and AIV circulation were explored using spatial generalized linear models. We found that AIV prevalence was negatively associated with distance to the closest water body in the Red River Delta, Vietnam highlands and Madagascar. We also found a positive association between AIV and duck density in the Vietnam highlands and Thailand, and with rice landscapes in Thailand and Madagascar. Our findings confirm the important role of wetlands-rice-ducks ecosystems in the epidemiology of AI in diverse settings. Variables influencing circulation of the H5 subtype in Southeast Asia played a similar role for low pathogenic AIV in Madagascar, indicating that this area may be at risk if a highly virulent strain is introduced.

  8. Identification by the DArTseq method of the genetic origin of the Coffea canephora cultivated in Vietnam and Mexico.

    PubMed

    Garavito, Andrea; Montagnon, Christophe; Guyot, Romain; Bertrand, Benoît

    2016-11-04

    The coffee species Coffea canephora is commercially identified as "Conilon" when produced in Brazil, or "Robusta" when produced elsewhere in the world. It represents approximately 40 % of coffee production worldwide. While the genetic diversity of wild C. canephora has been well studied in the past, only few studies have addressed the genetic diversity of currently cultivated varieties around the globe. Vietnam is the largest Robusta producer in the world, while Mexico is the only Latin American country, besides Brazil, that has a significant Robusta production. Knowledge of the genetic origin of Robusta cultivated varieties in countries as important as Vietnam and Mexico is therefore of high interest. Through the use of Sequencing-based diversity array technology-DArTseq method-on a collection of C. canephora composed of known accessions and accessions cultivated in Vietnam and Mexico, 4,021 polymorphic SNPs were identified. We used a multivariate analysis using SNP data from reference accessions in order to confirm and further fine-tune the genetic diversity of C. canephora. Also, by interpolating the data obtained for the varieties from Vietnam and Mexico, we determined that they are closely related to each other, and identified that their genetic origin is the Robusta Congo - Uganda group. The genetic characterization based on SNP markers of the varieties grown throughout the world, increased our knowledge on the genetic diversity of C. canephora, and contributed to the understanding of the genetic background of varieties from very important coffee producers. Given the common genetic origin of the Robusta varieties cultivated in Vietnam, Mexico and Uganda, and the similar characteristics of climatic areas and relatively high altitude where they are grown, we can state that the Vietnamese and the Mexican Robusta have the same genetic potential to produce good cup quality.

  9. "Never Forget the Sacrifice:" A Visit to Chu Van An High School in Hanoi, Vietnam.

    ERIC Educational Resources Information Center

    Berman, David M.

    1995-01-01

    Reports on a 1993 study tour of Vietnam by educators. Discusses the role of a secondary school during the struggle against French colonialism and the U.S.-Vietnam War. Argues that educators must acknowledge the humanity of the Vietnamese as the first step in designing Vietnam-related social studies curriculum. (CFR)

  10. Defense.gov Special Report: Travels with Gates - October 2010

    Science.gov Websites

    issues. Story MIA Issue Aided U.S.-Vietnam Relationship HANOI, Vietnam, Oct. 11, 2010 - Efforts to recover those missing from the Vietnam War have helped to transform the U.S.-Vietnamese relationship since . Gates noted the level of cooperation in the military relationship between the United States and Vietnam

  11. 77 FR 73674 - Circular Welded Carbon-Quality Steel Pipe From India, Oman, The United Arab Emirates, and Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-11

    ...)] Circular Welded Carbon-Quality Steel Pipe From India, Oman, The United Arab Emirates, and Vietnam... welded carbon-quality steel pipe from India, Oman, the United Arab Emirates, and Vietnam, provided for in... from India, Oman, the United Arab Emirates, and Vietnam were subsidized and/or dumped within the...

  12. 77 FR 50713 - Steel Wire Garment Hangers From Taiwan and Vietnam; (Corrected Notice) Scheduling of the Final...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ...)] Steel Wire Garment Hangers From Taiwan and Vietnam; (Corrected Notice) Scheduling of the Final Phase of... the United States is materially retarded, by reason of subsidized imports from Vietnam of steel wire garment hangers and less- than-fair-value imports from Taiwan and Vietnam of steel wire garment hangers...

  13. Stratification and the Emergence of the Postsecondary Private Education Sector in Vietnam

    ERIC Educational Resources Information Center

    Goyette, Kimberly Ann

    2012-01-01

    Vietnam has a strong public postsecondary education sector that has only recently begun to experience growth in nonpublic institutions. I investigate how the growth of nonpublic institutions may be related to stratification in Vietnam. I find that these institutions are more likely to serve more advantaged students from South Vietnam. Students pay…

  14. Who is Responsible for Training the Civilian Members of the Provincial Reconstruction Teams (PRTs)

    DTIC Science & Technology

    2010-05-01

    Quoted from an interview conducted by AI. Hemingway , "CORDS: Winning Hearts and Minds in Vietnam," Vietnam Magazine, (February 1994). 82 Brig. Gen Dinh...Team-a model for coordination." Air University Review, July-August 1967. Hemingway , AI. "CORDS: Winning Hearts and Minds in Vietnam." Vietnam Magazine

  15. 38 CFR 21.8012 - Vocational training program for certain children of Vietnam veterans and veterans with covered...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... program for certain children of Vietnam veterans and veterans with covered service in Korea-spina bifida... Rehabilitation for Certain Children of Vietnam Veterans and Veterans with Covered Service in Korea-Spina Bifida... Vietnam veterans and veterans with covered service in Korea—spina bifida and covered birth defects. VA...

  16. 77 FR 39613 - Presidential Determination on a U.S. Export Import Bank Transaction with Vietnam

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-03

    ...-10 of June 25, 2012--Presidential Determination on a U.S. Export-Import Bank Transaction With Vietnam... with Vietnam Memorandum for the Secretary of State Pursuant to section 2(b)(2)(D) of the Export Import...,890 to the Vietnam Post and Telecommunications Group, a wholly state-owned company, for the purchase...

  17. 38 CFR 21.8012 - Vocational training program for certain children of Vietnam veterans and veterans with covered...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... program for certain children of Vietnam veterans and veterans with covered service in Korea-spina bifida... Rehabilitation for Certain Children of Vietnam Veterans and Veterans with Covered Service in Korea-Spina Bifida... Vietnam veterans and veterans with covered service in Korea—spina bifida and covered birth defects. VA...

  18. 38 CFR 21.8012 - Vocational training program for certain children of Vietnam veterans and veterans with covered...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... program for certain children of Vietnam veterans and veterans with covered service in Korea-spina bifida... Rehabilitation for Certain Children of Vietnam Veterans and Veterans with Covered Service in Korea-Spina Bifida... Vietnam veterans and veterans with covered service in Korea—spina bifida and covered birth defects. VA...

  19. 38 CFR 21.8012 - Vocational training program for certain children of Vietnam veterans and veterans with covered...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... program for certain children of Vietnam veterans and veterans with covered service in Korea-spina bifida... Rehabilitation for Certain Children of Vietnam Veterans and Veterans with Covered Service in Korea-Spina Bifida... Vietnam veterans and veterans with covered service in Korea—spina bifida and covered birth defects. VA...

  20. Drawing on Experience: A Study of Vietnam Veteran Artists

    ERIC Educational Resources Information Center

    Michel, Karl F.

    2004-01-01

    This study is an exploration of the art produced by American veterans of the Vietnam War. In the areas of artistic history, military service, and the creative process, Vietnam veteran artists are a diverse group, and there are many different ways of explaining the connection between Vietnam experience and their art. Some individuals made limited…

  1. 31 CFR 500.204 - Importation of and dealings in certain merchandise.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... following paragraph (a)(1) of this section. (1) Merchandise the country of origin of which is North Korea... is North Korea, North Viet-Nam, Cambodia, or South Viet-Nam, notwithstanding that they may have been... merchandise whose country of origin is North Korea, North Viet-Nam, Cambodia, or South Viet-Nam, if there...

  2. Teaching about Vietnam and the Vietnam War. ERIC Digest.

    ERIC Educational Resources Information Center

    Schlene, Vicki J.

    This digest discusses the need for teaching about the Vietnam War, possible reasons for the negligible treatment the subject receives in social studies classes, and some instructional approaches to the material. Currently, students lack a systematic and detailed knowledge of this turning point in U.S. history. The impact of the Vietnam War on U.S.…

  3. Prevalence of and susceptibility to cigarette smoking among female students aged 13 to 15 years in Vietnam, 2007.

    PubMed

    Minh, Hoang Van; Hai, Phan Thi; Giang, Kim Bao; Kinh, Ly Ngoc

    2010-01-01

    Recent reports show a sharp increase in smoking rates among girls. We describe prevalence of cigarette smoking and susceptibility to cigarette smoking among female students aged 13 to 15 years in Vietnam and examine the associated factors. We used data from female secondary school students aged 13 to 15 years (grades 8-10) from the 2007 Global Youth Tobacco Survey that was conducted in 9 provinces in Vietnam. We used multivariate logistic regression analysis to determine associations between independent variables with smoking status and susceptibility to smoking. Prevalence of cigarette smoking among girls was 1.2% (95% confidence interval [CI], 0.9-1.5), and 1.5% (95% CI, 1.2-1.9) of girls were susceptible to smoking. Having friends who smoke was the strongest predictor of both smoking status and susceptibility to smoking. Attendance at school classes that described the harmful effects of smoking had significant effects in reducing cigarette smoking. Girls who were exposed to billboard cigarette advertising were more likely to be susceptible to smoking than were those who had not seen advertisements. Our findings highlight the need for pursuing school-based intervention programs in Vietnam and for countering tobacco advertising and marketing practices that target young women.

  4. Effects of individual characteristics and school environment on cigarette smoking among students ages 13-15: A multilevel analysis of the 2007 Global Youth Tobacco Survey (GYTS) data from Vietnam.

    PubMed

    Van Minh, Hoang; Hai, Phan Thi; Giang, Kim Bao; Nga, Pham Quynh; Khanh, Pham Huyen; Lam, Nguyen Tuan; Kinh, Ly Ngoc

    2011-01-01

    This paper aims to estimate the prevalence of cigarette smoking among students in Vietnam ages 13-15 and examines its relationship with compositional and contextual factors. The data used in this paper were obtained from the 2007 Global Youth Tobacco Survey conducted in nine provinces in Vietnam. A multilevel logistic regression model was applied to analyse the association between the current incidence of cigarette smoking and factors on both the individual and school level. The prevalence of cigarette smoking among students was 3.3% overall. The prevalence of smoking among male students (5.9%) was higher than that among females (1.2%). Parental smoking was a significant risk factor for smoking among the students. Having a friend who smoked was the strongest predictor of smoking status among the study subjects. We have demonstrated that school-level factors appeared to impact the prevalence of cigarette smoking among students ages 13-15. This paper highlights the importance of utilising an extensive range of actions to prevent students from using tobacco in Vietnam. These actions should include providing specific curricula for students that address both individual characteristics and the school environment. Further, prevention programmes should also target both parental- and peer-smoking issues.

  5. A new species of the genus Theloderma Tschudi, 1838 (Amphibia: Anura: Rhacophoridae) from Tay Nguyen Plateau, central Vietnam.

    PubMed

    Poyarkov, Nikolay A; Kropachev, Ivan I; Gogoleva, Svetlana S; Orlov, Nikolai L

    2018-04-20

    A new species of small tree frog from a primary montane tropical forest of central Vietnam, Tay Nguyen Plateau, is described based on morphological, molecular, and acoustic evidence. The Golden Bug-Eyed Frog, Theloderma auratum sp. nov., is distinguishable from its congeners and other small rhacophorid species based on a combination of the following morphological attributes: (1) bony ridges on head absent; (2) smooth skin completely lacking calcified warts or asperities; (3) pointed elongated tapering snout; (4) vocal opening in males absent; (5) vomerine teeth absent; (6) males of small body size (SVL 21.8-26.4 mm); (7) head longer than wide; ED/SVL ratio 13%-15%; ESL/SVL ratio 16%-20%; (8) small tympanum (TD/EL ratio 50%-60%) with few tiny tubercles; (9) supratympanic fold absent; (10) ventral surfaces completely smooth; (11) webbing between fingers absent; (12) outer and inner metacarpal tubercles present, supernumerary metacarpal tubercle single, medial, oval in shape; (13) toes half-webbed: I 2-2¼ II 1½-2¾ III 2-3¼ IV 3-1½ V; (14) inner metatarsal tubercle present, oval; outer metatarsal tubercle absent; (15) iris bicolored; (16) dorsal surfaces golden-yellow with sparse golden-orange speckling or reticulations and few small dark-brown spots; (17) lateral sides of head and body with wide dark reddish-brown to black lateral stripes, clearly separated from lighter dorsal coloration by straight contrasting edge; (18) ventral surfaces of body, throat, and chest greyish-blue with indistinct brown confluent blotches; (19) upper eyelids with few (3-5) very small flat reddish superciliary tubercles; (20) limbs dorsally reddish-brown, ventrally brown with small bluish-white speckles. The new species is also distinct from all congeners in 12S rRNA to 16S rRNA mitochondrial DNA fragment sequences (uncorrected genetic distance P>8.9%). Advertisement call and tadpole morphology of the new species are described. Our molecular data showed Theloderma auratum sp. nov. to be a sister species of Th. palliatum from Langbian Plateau in southern Vietnam.

  6. A new species of the genus Theloderma Tschudi, 1838 (Amphibia: Anura: Rhacophoridae) from Tay Nguyen Plateau, central Vietnam

    PubMed Central

    Poyarkov, Nikolay A.; Kropachev, Ivan I.; Gogoleva, Svetlana S.; Orlov, Nikolai L.

    2018-01-01

    A new species of small tree frog from a primary montane tropical forest of central Vietnam, Tay Nguyen Plateau, is described based on morphological, molecular, and acoustic evidence. The Golden Bug-Eyed Frog, Theloderma auratum sp. nov., is distinguishable from its congeners and other small rhacophorid species based on a combination of the following morphological attributes: (1) bony ridges on head absent; (2) smooth skin completely lacking calcified warts or asperities; (3) pointed elongated tapering snout; (4) vocal opening in males absent; (5) vomerine teeth absent; (6) males of small body size (SVL 21.8–26.4 mm); (7) head longer than wide; ED/SVL ratio 13%–15%; ESL/SVL ratio 16%–20%; (8) small tympanum (TD/EL ratio 50%–60%) with few tiny tubercles; (9) supratympanic fold absent; (10) ventral surfaces completely smooth; (11) webbing between fingers absent; (12) outer and inner metacarpal tubercles present, supernumerary metacarpal tubercle single, medial, oval in shape; (13) toes half-webbed: I 2–2¼ II 1½–2¾ III 2–3¼ IV 3–1½ V; (14) inner metatarsal tubercle present, oval; outer metatarsal tubercle absent; (15) iris bicolored; (16) dorsal surfaces golden-yellow with sparse golden-orange speckling or reticulations and few small dark-brown spots; (17) lateral sides of head and body with wide dark reddish-brown to black lateral stripes, clearly separated from lighter dorsal coloration by straight contrasting edge; (18) ventral surfaces of body, throat, and chest greyish-blue with indistinct brown confluent blotches; (19) upper eyelids with few (3–5) very small flat reddish superciliary tubercles; (20) limbs dorsally reddish-brown, ventrally brown with small bluish-white speckles. The new species is also distinct from all congeners in 12S rRNA to 16S rRNA mitochondrial DNA fragment sequences (uncorrected genetic distance P>8.9%). Advertisement call and tadpole morphology of the new species are described. Our molecular data showed Theloderma auratum sp. nov. to be a sister species of Th. palliatum from Langbian Plateau in southern Vietnam. PMID:29683110

  7. Coral Geochemical Proxy Records Of The East Asian Winter Monsoon And Hydrological Conditions In The Central Vietnam From 1978-2004 AD

    NASA Astrophysics Data System (ADS)

    Chang, C.; Shen, C.; Chen, Y.; Chiang, H.; Lam, D. D.; Ngai, N.

    2007-12-01

    Monthly-resolution geochemical proxies, including δ18O, δ13C, Sr/Ca, and Ba/Ca, in a living Porites coral head, collected from Son Tra Island, a near-shore island located at the north tip of Vung Da Nang Bay, central Vietnam (16°12'59.4", 108°1'57.1"), was used to quantitatively reconstruct records of sea surface temperature (SST), sea surface salinity (SSS), seasonality of rainfall, and regional terrestrial input during a period of 1978-2004 AD. By comparing the 1/4-century geochemical data, five features are exhibited. (1) The coral Sr/Ca-inferred summer SSTs correspond well with the 1°x1° instrumental data to suggest that the regional SST record can be retrieved from this local coral head. (2) Interannual variation of coral winter SST data does not follow regional instrumental values. The harmonic phenomenon between coral inferred winter SST dynamic and the surface pressure difference, between the southern South China Sea (SCS) (0-10°N, 105-115°E) and the northern SCS (22.5-32.5°N, 112-122°E), indicating that the cold local SST induced by East Asian winter monsoon was addressed in the Son Tra coral. (3) 1‰ seasonal anomaly of δ18O residual (Δδ18O) suggests a 2-4-psu seasonal salinity change between dry and wet seasons. (4) The synchronous intra-annual changes of δ18O and Ba/Ca data suggest that the rainy season is from late summer to winter, which is consistent with the meteorological record. (5) The high Ba/Ca background level of 10 μmol/mol in 1992-2004, 2-3 times larger than the averaged value of 4 μmol/mol in 1978-1992, indicates an enhanced terrestrial sediment discharge into the bay over the past 10 years. Ba records probably reflect an impact of human activity on hydrological change since the Vietnam War.

  8. An Analysis of United States Prisoner of War-Missing In Action Accounting Operations and their Correlation to the Normalization of Relations Between the United States and the Socialist Republic of Vietnam

    DTIC Science & Technology

    2005-01-01

    Willbanks, Abandoning Vietnam (Lawrence, KS: University of Kansas Press, 2004), 287. 3Bui Thi Huong, Tran Quan, and Truong Minh Dao, approved by John H...as a result of the agreement. Le Duc Tho responded by saying: “. . . if you satisfactorily resolve the political question and the question of...reparations, then we can find an understanding.”25 As Le Duc Tho’s statement indicates, the Vietnamese party linked reparations to the POW/MIA accounting

  9. High prevalence of Hepatitis C virus genotype 6 in Vietnam.

    PubMed

    Pham, Duc Anh; Leuangwutiwong, Pornsawan; Jittmittraphap, Akanitt; Luplertlop, Nattanej; Bach, Hoa Khanh; Akkarathamrongsin, Srunthron; Theamboonlers, Apiradee; Poovorawan, Yong

    2009-01-01

    This study aimed to update the prevalence of the various Hepatitis C virus genotypes in Vietnamese blood donors. One hundred and three HCV antibody-positive plasma samples were collected from blood donors at the National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam. All specimens were subjected to RT-PCR of the 5' untranslated region (UTR) to confirm the presence of HCV RNA. The core and NS5B regions of thh positive samples were subsequently amplified by RT-PCR followed by direct sequencing and phylogenetic analysis. Seventy out of 103 samples (68.0%) were RNA positive. Core and NS5B were successfully amplified and sequences were obtained for 70 and 65 samples, respectively. Phylogenetic analysis revealed that genotype 6a was the most predominant among Vietnamese blood donors with a prevalence of 37.1% (26/70), followed by genotype 1a at 30.0% (21/70) and genotype 1b at 17.1% (12/70). The prevalence of two other genotype 6 variants, 6e and 61 was 8.6% and 1.4%, respectively. Further analysis of recent studies showed that the geographic distribution of genotype 6 covered mainly southern China and the mainland of Southeast Asia including Vietnam, Laos, Thailand, and Myanmar. The GenBank accession numbers for the sequences reported in this study are FJ768772-FJ768906.

  10. Low perception of malaria risk among the Ra-glai ethnic minority in south-central Vietnam: implications for forest malaria control

    PubMed Central

    2010-01-01

    Background Despite Vietnam's success in reducing malaria mortality and morbidity over the last decade, malaria persists in the forested and mountainous areas of the central and southern provinces, where more than 50% of the clinical cases and 90% of severe cases and malaria deaths occur. Methods Between July 2005 and September 2006, a multi-method study, triangulating a malariometric cross-sectional survey and qualitative data from focused ethnography, was carried out among the Ra-glai ethnic minority in the hilly forested areas of south-central Vietnam. Results Despite the relatively high malaria burden among the Ra-glai and their general awareness that mosquitoes can transmit an unspecific kind of fever (84.2%), the use of bed nets, distributed free of charge by the national malaria control programme, remains low at the farmers' forest fields where the malaria risk is the highest. However, to meet work requirements during the labour intensive malaria transmission and rainy season, Ra-glai farmers combine living in government supported villages along the road with a second home or shelter at their slash and burn fields located in the forest. Bed net use was 84.6% in the villages but only 52.9% at the forest fields; 20.6% of the respondents slept unprotected in both places. Such low use may be explained by the low perception of the risk for malaria, decreasing the perceived need to sleep protected. Several reasons may account for this: (1) only 15.6% acknowledged the higher risk of contracting malaria in the forest than in the village; (2) perceived mosquito biting times only partially coincided with Anopheles dirus ss and Anopheles minimus A true biting times; (3) the disease locally identified as 'malaria' was hardly perceived as having an impact on forest farmers' daily lives as they were unaware of the specific kind of fevers from which they had suffered even after being diagnosed with malaria at the health centre (20.9%). Conclusions The progressive confinement of malaria to minority groups and settings in the Greater Mekong sub-region implies that further success in malaria control will be linked to research into these specific socio-cultural contexts. Findings highlight the need for context sensitive malaria control policies; not only to reduce the local malaria burden but also to minimize the risk of malaria spreading to other areas where transmission has virtually ceased. PMID:20089152

  11. Patterns of Health Expenditures and Financial Protections in Vietnam 1992-2012.

    PubMed

    Hoang, Van Minh; Oh, Juhwan; Tran, Tuan Anh; Tran, Thi Giang Huong; Ha, Anh Duc; Luu, Ngoc Hoat; Nguyen, Thi Kim Phuong

    2015-11-01

    Health financing has been considered as an important building block of a health system and has a key role in promoting universal health coverage in the Vietnam. This paper aims to describe the pattern of health expenditure, including total health expenditure and composition of health expenditure, over the last two decades in Vietnam. The paper mainly uses the data from Vietnam National Health Account and Vietnam Living Standards Survey. We also included data from other relevant published literature, reports and statistics about health care expenditure in Vietnam. The per capita health expenditure in Vietnam increased from US$ 14 in 1995 to US$ 86 in 2012. The total health expenditure as a share of GDP also rose from 5.2% in 1995 to 6.9% in 2012. Public health expenditure as percentage of government expenditure rose from 7.4% in 1995 to nearly 10% in 2012. The coverage of health insurance went up from 10% in 1995 to 68.5% in 2012. However, health financing in Vietnam was depending on private expenditures (57.4% in 2012). As a result, the proportion of households with catastrophic expenditure in 2012 was 4.2%. The rate of impoverishment in 2012 was 2.5%. To ensure equity and efficient goal of health system, policy actions for containing the health care out-of-pocket payments and their poverty impacts are urgently needed in Vietnam.

  12. A new species of Leptolalax (Anura: Megophryidae) from Vietnam.

    PubMed

    Rowley, Jodi J L; Dau, Vinh Q; Cao, Trung T

    2017-06-01

    We describe a new, medium-sized Leptolalax species from north central Vietnam. Leptolalax puhoatensis sp. nov. is distinguished from its congeners by a combination of having a body size range of 24.2-28.1 mm in eight adult males and 27.3-31.5 mm in three adult females; distinct dorsolateral markings including blackish spots on the flank and dark canthal and/or temporal streaks; males with a reddish-brown venter, often with faint white dusting and females with a pale pink venter; skin on dorsum with tiny, indistinct, low tubercles in preservative, more distinct and forming low dorsal ridges on dorsal surface in life; toes with webbing basal and narrow lateral fringes; iris copper in upper half and golden in lower half; and a call consisting of a single note and a dominant frequency of 4.9-5.6 kHz (at 22.3-25.8º C). Uncorrected sequence divergences between L. puhoatensis sp. nov. and all homologous 16S rRNA sequences available for known species in the genus are ≥6.3%.

  13. Human factors and tidal influences on water quality of an urban river in Can Tho, a major city of the Mekong Delta, Vietnam.

    PubMed

    Ozaki, Hirokazu; Co, Thi Kinh; Le, Anh Kha; Pham, Viet Nu; Nguyen, Van Be; Tarao, Mitsunori; Nguyen, Huu Chiem; Le, Viet Dung; Nguyen, Hieu Trung; Sagehashi, Masaki; Ninomiya-Lim, Sachi; Gomi, Takashi; Hosomi, Masaaki; Takada, Hideshige

    2014-02-01

    In this study, we focused on water quality in an urban canal and the Mekong River in the city of Can Tho, a central municipality of the Mekong Delta region, southern Vietnam. Water temperature, pH, electrical conductivity, BOD5, CODCr, Na(+), Cl(-), NH4 (+)-N, SO4 (2-)-S, NO3 (-)-N, and NO2 (-)-N for both canal and river, and tide level of the urban canal, were monitored once per month from May 2010 to April 2012. The urban canal is subject to severe anthropogenic contamination, owing to poor sewage treatment. In general, water quality in the canal exhibited strong tidal variation, poorer at lower tides and better at higher tides. Some anomalies were observed, with degraded water quality under some high-tide conditions. These were associated with flow from the upstream residential area. Therefore, it was concluded that water quality in the urban canal changed with a balance between dilution effects and extent of contaminant supply, both driven by tidal fluctuations in the Mekong River.

  14. Using the Arts to Teach Vietnam War Literature.

    ERIC Educational Resources Information Center

    Johannessen, Larry R.

    Starting a unit on Vietnam War literature by having students view slides of the Vietnam Veterans Memorial and listen to letters left there is just the first step in how an English teacher uses the arts to enhance student learning about the Vietnam War and its literature. After discussing their reactions to the slides and the offerings left at the…

  15. 8 CFR 245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 245.21 Section 245.21 Aliens and... ADMITTED FOR PERMANENT RESIDENCE § 245.21 Adjustment of status of certain nationals of Vietnam, Cambodia... a lawful permanent resident, a native or citizen of Vietnam, Cambodia, or Laos who: (1) Was...

  16. 8 CFR 245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 245.21 Section 245.21 Aliens and... ADMITTED FOR PERMANENT RESIDENCE § 245.21 Adjustment of status of certain nationals of Vietnam, Cambodia... a lawful permanent resident, a native or citizen of Vietnam, Cambodia, or Laos who: (1) Was...

  17. 8 CFR 245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 245.21 Section 245.21 Aliens and... ADMITTED FOR PERMANENT RESIDENCE § 245.21 Adjustment of status of certain nationals of Vietnam, Cambodia... a lawful permanent resident, a native or citizen of Vietnam, Cambodia, or Laos who: (1) Was...

  18. 31 CFR 500.201 - Transactions involving designated foreign countries or their nationals; effective date.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... noted after the country or area. Schedule (1) North Korea, i.e., Korea north of the 38th parallel of north latitude: December 17, 1950. (2) Cambodia: April 17, 1975. (3) North Vietnam; i.e., Vietnam north of the 17th parallel of north latitude: May 5, 1964. (4) South Vietnam, i.e., Vietnam south of the...

  19. A REMF's View of Viet Nam War Literature Bibliography.

    ERIC Educational Resources Information Center

    Willson, David A.

    An academic librarian who is a Vietnam War veteran was inspired by the exemplary collection of Vietnam War literature at the Colorado State University Library to begin his own personal collection of mass market paperbacks dealing with the Vietnam War. Although Vietnam War fiction was common on the mass market racks in the mid 1980s, it has been…

  20. Herbicide Exposure, Vietnam Service, and Hypertension Risk in Army Chemical Corps Veterans.

    PubMed

    Cypel, Yasmin S; Kress, Amii M; Eber, Stephanie M; Schneiderman, Aaron I; Davey, Victoria J

    2016-11-01

    We examined hypertension risk in Army Chemical Corps (ACC) veterans who sprayed defoliant in Vietnam. We analyzed data from the 2013 health survey of 3086 ACC veterans and investigated the association between self-reported physician-diagnosed-hypertension (SRH) and herbicide-spray-history adjusting for Vietnam-service-status, rank, age, tobacco/alcohol use, race, and body mass index (BMI). Spray-history was verified against serum 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) (n = 636). SRH was confirmed by blood pressure (BP) measurement by trained medical technicians and medical record reviews. Herbicide-spray-history (ORadjusted[95%confidence interval {CI}] = 1.74[1.44,2.11]) and Vietnam-service-status (ORadjusted = 1.26[1.05,1.53]) were significantly associated with SRH. The association was highest when comparing Vietnam-service-sprayers to non-Vietnam-service-nonsprayers (ORadjusted = 2.21[1.76,2.77]). Serum TCDD was highest for Vietnam-service-sprayers. Mean systolic BPs were significantly higher among veterans with SRH than those without (P ≤ 0.001). Medical records and SRH overall agreement was 89%. Occupational herbicide exposure history and Vietnam-service-status were significantly associated with hypertension risk.

  1. Forest transition in Vietnam and displacement of deforestation abroad

    PubMed Central

    Meyfroidt, Patrick; Lambin, Eric F.

    2009-01-01

    In some countries across the globe, tropical forest cover is increasing. The national-scale reforestation of Vietnam since 1992 is assumed to contribute to this recovery. It is achieved, however, by the displacement of forest extraction to other countries on the order of 49 (34–70) M m3, or ≈39% of the regrowth of Vietnam's forests from 1987 to 2006. Approximately half of wood imports to Vietnam during this period were illegal. Leakage due to policies restricting forest exploitation and displacement due to growing domestic consumption and exports contributed respectively to an estimated 58% and 42% of total displacement. Exports of wood products from Vietnam also grew rapidly, amounting to 84% of the displacement, which is a remarkable feature of the forest transition in Vietnam. Attribution of the displacement and corresponding forest extraction to Vietnam, the source countries or the final consumers is thus debatable. Sixty-one percent of the regrowth in Vietnam was, thus, not associated with displacement abroad. Policies allocating credits to countries for reducing deforestation and forest degradation should monitor illegal timber trade and take into account the policy-induced leakage of wood extraction to other countries. PMID:19805270

  2. Forest transition in Vietnam and displacement of deforestation abroad.

    PubMed

    Meyfroidt, Patrick; Lambin, Eric F

    2009-09-22

    In some countries across the globe, tropical forest cover is increasing. The national-scale reforestation of Vietnam since 1992 is assumed to contribute to this recovery. It is achieved, however, by the displacement of forest extraction to other countries on the order of 49 (34-70) M m(3), or approximately 39% of the regrowth of Vietnam's forests from 1987 to 2006. Approximately half of wood imports to Vietnam during this period were illegal. Leakage due to policies restricting forest exploitation and displacement due to growing domestic consumption and exports contributed respectively to an estimated 58% and 42% of total displacement. Exports of wood products from Vietnam also grew rapidly, amounting to 84% of the displacement, which is a remarkable feature of the forest transition in Vietnam. Attribution of the displacement and corresponding forest extraction to Vietnam, the source countries or the final consumers is thus debatable. Sixty-one percent of the regrowth in Vietnam was, thus, not associated with displacement abroad. Policies allocating credits to countries for reducing deforestation and forest degradation should monitor illegal timber trade and take into account the policy-induced leakage of wood extraction to other countries.

  3. Moving toward universal coverage of health insurance in Vietnam: barriers, facilitating factors, and lessons from Korea.

    PubMed

    Do, Ngan; Oh, Juhwan; Lee, Jin-Seok

    2014-07-01

    Vietnam has pursued universal health insurance coverage for two decades but has yet to fully achieve this goal. This paper investigates the barriers to achieve universal coverage and examines the validity of facilitating factors to shorten the transitional period in Vietnam. A comparative study of facilitating factors toward universal coverage of Vietnam and Korea reveals significant internal forces for Vietnam to further develop the National Health Insurance Program. Korea in 1977 and Vietnam in 2009 have common characteristics to be favorable of achieving universal coverage with similarities of level of income, highly qualified administrative ability, tradition of solidarity, and strong political leadership although there are differences in distribution of population and structure of the economy. From a comparative perspective, Vietnam can consider the experience of Korea in implementing the mandatory enrollment approach, household unit of eligibility, design of contribution and benefit scheme, and resource allocation to health insurance for sustainable government subsidy to achieve and sustain the universal coverage of health insurance.

  4. Dioxins and dibenzofurans in adipose tissue of U. S. Vietnam veterans and controls

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Kang, H.K.; Watanabe, K.K.; Breen, J.

    1990-08-01

    Concern about the adverse effects of exposure to Agent Orange is for the most part attributable to its toxic contaminant, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). A total of 40 Vietnam veterans, 80 non-Vietnam veterans and 80 civilian men were selected from males born between 1936 and 1954 and their adipose tissues were analyzed for 17 2,3,7,8-substituted dioxins and dibenzofurans. TCDD levels were log normally distributed and the mean level of 2,3,7,8-TCDD in adipose tissue of the Vietnam veterans (13.4 ppt) was not significantly different from that of the non-Vietnam veterans (12.5 ppt) or civilian men (15.8 ppt). Adjusting for demographic variables did notmore » change the conclusions. The study results suggest that heavy exposure to Agent Orange for most Vietnam veterans was very unlikely and that there is no readily available and reliable indirect method of assessing exposure to Agent Orange for Vietnam veterans.« less

  5. Field evaluation of spatial repellency of metofluthrin-impregnated latticework plastic strips against Aedes aegypti (L.) and analysis of environmental factors affecting its efficacy in My Tho City, Tien Giang, Vietnam.

    PubMed

    Kawada, Hitoshi; Iwasaki, Tomonori; LE Loan, Luu; Tien, Tran Khanh; Mai, Nguyen Thi Nhu; Shono, Yoshinori; Katayama, Yasuyuki; Takagi, Masahiro

    2006-12-01

    Spatial repellency of metofluthrin-impregnated polyethylene latticework plastic strips against Aedes aegypti mosquitoes was evaluated. Analysis of environmental factors affecting the efficacy of these strips, such as room temperature, humidity, and house structure, was performed in a residential area in My Tho City, Tien Giang Province, Vietnam. Treatment with the strips at the rate of 1 strip per 2.6-5.52 m(2) (approximately 600 mg per 2.6-5.52 m(2)) reduced the collection of Ae. aegypti resting inside the houses for at least eight weeks. Multiple regression analysis indicated that both increase in the average room temperature and decrease in the area of openings in the rooms that were treated with the strips positively affected the spatial repellency of metofluthrin.

  6. Geographic analysis of shigellosis in Vietnam.

    PubMed

    Kim, Deok Ryun; Ali, Mohammad; Thiem, Vu Dinh; Park, Jin-Kyung; von Seidlein, Lorenz; Clemens, John

    2008-12-01

    Geographic and ecological analysis may provide investigators useful ecological information for the control of shigellosis. This paper provides distribution of individual Shigella species in space, and ecological covariates for shigellosis in Nha Trang, Vietnam. Data on shigellosis in neighborhoods were used to identify ecological covariates. A Bayesian hierarchical model was used to obtain joint posterior distribution of model parameters and to construct smoothed risk maps for shigellosis. Neighborhoods with a high proportion of worshippers of traditional religion, close proximity to hospital, or close proximity to the river had increased risk for shigellosis. The ecological covariates associated with Shigella flexneri differed from the covariates for Shigella sonnei. In contrast the spatial distribution of the two species was similar. The disease maps can help identify high-risk areas of shigellosis that can be targeted for interventions. This approach may be useful for the selection of populations and the analysis of vaccine trials.

  7. Avian and pandemic human influenza policy in South-East Asia: the interface between economic and public health imperatives.

    PubMed

    Pongcharoensuk, Petcharat; Adisasmito, Wiku; Sat, Le Minh; Silkavute, Pornpit; Muchlisoh, Lilis; Cong Hoat, Pham; Coker, Richard

    2012-08-01

    The aim of this study was to analyse the contemporary policies regarding avian and human pandemic influenza control in three South-East Asia countries: Thailand, Indonesia and Vietnam. An analysis of poultry vaccination policy was used to explore the broader policy of influenza A H5N1 control in the region. The policy of antiviral stockpiling with oseltamivir, a scarce regional resource, was used to explore human pandemic influenza preparedness policy. Several policy analysis theories were applied to analyse the debate on the use of vaccination for poultry and stockpiling of antiviral drugs in each country case study. We conducted a comparative analysis across emergent themes. The study found that whilst Indonesia and Vietnam introduced poultry vaccination programmes, Thailand rejected this policy approach. By contrast, all three countries adopted similar strategic policies for antiviral stockpiling in preparation. In relation to highly pathogenic avian influenza, economic imperatives are of critical importance. Whilst Thailand's poultry industry is large and principally an export economy, Vietnam's and Indonesia's are for domestic consumption. The introduction of a poultry vaccination policy in Thailand would have threatened its potential to trade and had a major impact on its economy. Powerful domestic stakeholders in Vietnam and Indonesia, by contrast, were concerned less about international trade and more about maintaining a healthy domestic poultry population. Evidence on vaccination was drawn upon differently depending upon strategic economic positioning either to support or oppose the policy. With influenza A H5N1 endemic in some countries of the region, these policy differences raise questions around regional coherence of policies and the pursuit of an agreed overarching goal, be that eradication or mitigation. Moreover, whilst economic imperatives have been critically important in guiding policy formulation in the agriculture sector, questions arise regarding whether agriculture sectoral policy is coherent with public health sectoral policy across the region.

  8. An Assessment of Heavy Metal Contamination on the Surface Sediment of Seagrass Beds at the Khanh Hoa Coast, Vietnam.

    PubMed

    Nguyen, Xuan-Vy; Tran, Minh-Hue; Le, Trong-Dung; Papenbrock, Jutta

    2017-12-01

    Seagrasses beds are vulnerable ecosystems. Human-induced disturbances, including heavy metal pollution, cause losses in seagrass beds. Assessment of the heavy metal concentration in seagrass meadows is an urgent need in order to protect and sustain these ecosystems. The concentration of eight trace metals in the surface sediment was observed from six seagrass beds at Khanh Hoa's coast, Vietnam. Three pollution indices and statistical analysis were used to evaluate the levels of contamination with these elements. This report on heavy metals within seagrass beds in Vietnam shows that, based on enrichment factors, only one location revealed moderately severe enrichment of Cu. Geo-accumulation indices fall in the uncontaminated class at all locations whereas for the ecological risk factor, values of Cu at My Giang and of Pb at Thuy Trieu were in a moderate risk class. Hence, two of eight locations may be exposed to high Cu and Pb.

  9. Prevalence of Self-Treatment Practice and Related Factors Among Workers Aged 15 to 60 Years in Chi Linh Town, Hai Duong Province, Vietnam.

    PubMed

    Quynh Nguyen, Thuy; Tran, Thi Thu Thuy; Le, Thi Vui; Quyen, Thi Tu Bui; Trinh, Van Hung; Tran, Huu Bich

    2017-07-01

    Self-treatment is particularly prevalent in Vietnam. However, the prevalence of this practice among the working population is unclear. This study aims to describe the prevalence of self-treatment and related factors among workers aged 15 to 60 years in the suburban area of Chi Linh, Hai Duong, Vietnam. Secondary data of 3128 respondents was retrieved from the CHILILAB HDSS 2016 survey for analysis using logistic regression with a significance level of .05. Results show that 47.5% of respondents treated themselves at least once during one previous year. While rural residence and the presence of acute health symptoms and chronic diseases significantly associate with the choice of self-treatment among all investigated workers, lower education level and health insurance status only significantly relate to this practice among the formally employed workers. The findings imply the need for specific measures to manage self-treatment practices among different groups of workers.

  10. Problem-based learning (PBL) and public health: an initial exploration of perceptions of PBL in Vietnam.

    PubMed

    Grisham, John W; Martiniuk, Alexandra L C; Negin, Joel; Wright, E P

    2015-03-01

    Worldwide interest in problem-based learning (PBL) has grown in past decades. This article aims to evaluate the perceived effectiveness, appropriateness, benefits, and challenges attributed to the use of PBL in public health education in Vietnam with a view to providing recommendations for curricular design and future policy. Teachers at 2 universities in Hanoi participated in group interviews, and students from these 2 universities completed Likert-style questionnaires. Students and teachers regarded PBL positively. However, there was consensus that hybrid models that used PBL alongside other methods are probably the most beneficial for public health education in Vietnam. Teachers discussed the educational and systematic advantages and difficulties associated with PBL. Themes arising from this analysis may be helpful in guiding future research-namely, regarding the application of PBL in low- and middle-income countries and in public health. Further exploration of the use of PBL hybrid models is discussed. © 2012 APJPH.

  11. EPA Collaboration with Vietnam

    EPA Pesticide Factsheets

    Vietnam, one of Asia’s emerging economies, is an important environmental partner for EPA in Asia. EPA’s current cooperation with Vietnam primarily focuses on dioxin remediation and technical assistance to reduce methane emissions.

  12. Three new species of the water strider genus Rhyacobates Esaki, 1923 (Hemiptera: Gerridae) from Vietnam.

    PubMed

    Tran, A D; Nguyen, X Q

    2016-06-13

    Three new species: Rhyacobates zetteli sp.n., R. angustus sp.n., and R. constrictus sp.n., all from mountainous areas of northern Vietnam, are described. With these new taxa, a total of six species of Rhyacobates has been recorded from       Vietnam. A key to species of Rhyacobates occurring in Vietnam is provided.

  13. 8 CFR 1245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 1245.21 Section 1245.21 Aliens... certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). (a) Eligibility. The Service may adjust the status to that of a lawful permanent resident, a native or citizen of Vietnam...

  14. 8 CFR 1245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 1245.21 Section 1245.21 Aliens... certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). (a) Eligibility. The Service may adjust the status to that of a lawful permanent resident, a native or citizen of Vietnam...

  15. 8 CFR 1245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 1245.21 Section 1245.21 Aliens... certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). (a) Eligibility. The Service may adjust the status to that of a lawful permanent resident, a native or citizen of Vietnam...

  16. 8 CFR 245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 245.21 Section 245.21 Aliens and... ADMITTED FOR PERMANENT RESIDENCE § 245.21 Adjustment of status of certain nationals of Vietnam, Cambodia... that of a lawful permanent resident, a native or citizen of Vietnam, Cambodia, or Laos who: (1) Was...

  17. 8 CFR 1245.21 - Adjustment of status of certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). 1245.21 Section 1245.21 Aliens... certain nationals of Vietnam, Cambodia, and Laos (section 586 of Public Law 106-429). (a) Eligibility. The Service may adjust the status to that of a lawful permanent resident, a native or citizen of Vietnam...

  18. Agent Orange exposure and prevalence of self-reported diseases in Korean Vietnam veterans.

    PubMed

    Yi, Sang-Wook; Ohrr, Heechoul; Hong, Jae-Seok; Yi, Jee-Jeon

    2013-09-01

    The aim of this study was to evaluate the association between Agent Orange exposure and self-reported diseases in Korean Vietnam veterans. A postal survey of 114 562 Vietnam veterans was conducted. The perceived exposure to Agent Orange was assessed by a 6-item questionnaire. Two proximity-based Agent Orange exposure indices were constructed using division/brigade-level and battalion/company-level unit information. Adjusted odds ratios (ORs) for age and other confounders were calculated using a logistic regression model. The prevalence of all self-reported diseases showed monotonically increasing trends as the levels of perceived self-reported exposure increased. The ORs for colon cancer (OR, 1.13), leukemia (OR, 1.56), hypertension (OR, 1.03), peripheral vasculopathy (OR, 1.07), enterocolitis (OR, 1.07), peripheral neuropathy (OR, 1.07), multiple nerve palsy (OR, 1.14), multiple sclerosis (OR, 1.24), skin diseases (OR, 1.05), psychotic diseases (OR, 1.07) and lipidemia (OR, 1.05) were significantly elevated for the high exposure group in the division/brigade-level proximity-based exposure analysis, compared to the low exposure group. The ORs for cerebral infarction (OR, 1.08), chronic bronchitis (OR, 1.05), multiple nerve palsy (OR, 1.07), multiple sclerosis (OR, 1.16), skin diseases (OR, 1.05), and lipidemia (OR, 1.05) were significantly elevated for the high exposure group in the battalion/company-level analysis. Korean Vietnam veterans with high exposure to Agent Orange experienced a higher prevalence of several self-reported chronic diseases compared to those with low exposure by proximity-based exposure assessment. The strong positive associations between perceived self-reported exposure and all self-reported diseases should be evaluated with discretion because the likelihood of reporting diseases was directly related to the perceived intensity of Agent Orange exposure.

  19. Physical comorbidities of post-traumatic stress disorder in Australian Vietnam War veterans.

    PubMed

    McLeay, Sarah C; Harvey, Wendy M; Romaniuk, Madeline Nm; Crawford, Darrell Hg; Colquhoun, David M; Young, Ross McD; Dwyer, Miriam; Gibson, John M; O'Sullivan, Robyn A; Cooksley, Graham; Strakosch, Christopher R; Thomson, Rachel M; Voisey, Joanne; Lawford, Bruce R

    2017-04-03

    To determine whether the prevalence of physical comorbidities in Australian Vietnam War veterans with post-traumatic stress disorder (PTSD) is higher than in trauma-exposed veterans without PTSD. Cross-sectional analysis of the health status (based on self-reported and objective clinical assessments) of 298 Australian Vietnam War veterans enrolled by the Gallipoli Medical Research Institute (Brisbane) during February 2014 - July 2015, of whom 108 were confirmed as having had PTSD and 106 served as trauma-exposed control participants.Main outcomes and measures: Diagnostic psychiatric interview and psychological assessments determined PTSD status, trauma exposure, and comorbid psychological symptoms. Demographic data, and medical and sleep history were collected; comprehensive clinical examination, electrocardiography, spirometry, liver transient elastography, and selected pathology assessments and diagnostic imaging were performed. Outcomes associated with PTSD were identified; regression analysis excluded the effects of potentially confounding demographic and risk factors and comorbid symptoms of depression and anxiety. The mean total number of comorbidities was higher among those with PTSD (17.7; SD, 6.1) than in trauma-exposed controls (14.1; SD, 5.2; P < 0.001). For 24 of 171 assessed clinical outcomes, morbidity was greater in the PTSD group, including for conditions of the gastrointestinal, hepatic, cardiovascular, and respiratory systems, sleep disorders, and laboratory pathology measures. In regression analyses including demographic factors, PTSD remained positively associated with 17 adverse outcomes; after adjusting for the severity of depressive symptoms, it remained significantly associated with ten. PTSD in Australian Vietnam veterans is associated with comorbidities in several organ systems, independent of trauma exposure. A comprehensive approach to the health care of veterans with PTSD is needed.

  20. Correlates of HIV infection among street-based and venue-based sex workers in Vietnam.

    PubMed

    Le, Thuy Tc; Nguyen, Quoc C; Tran, Ha Tt; Schwandt, Michael; Lim, Hyun J

    2016-10-01

    Commercial sex work is one of the driving forces of the HIV epidemic across the world. In Vietnam, although female sex workers (FSWs) carry a disproportionate burden of HIV, little is known about the risk profile and associated factors for HIV infection among this population. There is a need for large-scale research to obtain reliable and representative estimates of the measures of association. This study involved secondary data analysis of the 'HIV/STI Integrated Biological and Behavioral Surveillance' study in Vietnam in 2009-2010 to examine the correlates of HIV among FSWs. Data collected from 5298 FSWs, including 2530 street-based sex workers and 2768 venue-based sex workers from 10 provinces in Vietnam, were analyzed using descriptive statistics and bivariate and multivariate logistic regression analyses. HIV prevalence among the overall FSW population was 8.6% (n = 453). However, when stratified by FSW subpopulations, HIV prevalence was 10.6% (n = 267) for street-based sex workers and 6.7% (n = 186) for venue-based sex workers. Factors independently associated with HIV infection in the multivariate analysis, regardless of sex work types, were injecting drug use, high self-perceived HIV risk, and age ≥ 25 years. Additional factors independently associated with HIV risk within each FSW subpopulation included having ever been married among street-based sex workers and inconsistent condom use with clients and having sex partners who injected drugs among venue-based sex workers. Apart from strategies addressing modifiable risk behaviours among all FSWs, targeted strategies to address specific risk behaviours within each FSW subpopulation should be adopted. © The Author(s) 2016.

  1. Patient complaints in healthcare services in Vietnam’s health system

    PubMed Central

    Thi Thu Ha, Bui; Mirzoev, Tolib; Morgan, Rosemary

    2015-01-01

    Background: There is growing recognition of patient rights in health sectors around the world. Patients’ right to complain in hospitals, often visible in legislative and regulatory protocols, can be an important information source for service quality improvement and achievement of better health outcomes. However, empirical evidence on complaint processes is scarce, particularly in the developing countries. To contribute in addressing this gap, we investigated patients’ complaint handling processes and the main influences on their implementation in public hospitals in Vietnam. Methods: The study was conducted in two provinces of Vietnam. We focused specifically on the implementation of the Law on Complaints and Denunciations and the Ministry of Health regulation on resolving complaints in the health sector. The data were collected using document review and in-depth interviews with key respondents. Framework approach was used for data analysis, guided by a conceptual framework and aided by qualitative data analysis software. Results: Five steps of complaint handling were implemented, which varied in practice between the provinces. Four groups of factors influenced the procedures: (1) insufficient investment in complaint handling procedures; (2) limited monitoring of complaint processes; (3) patients’ low awareness of, and perceived lack of power to change, complaint procedures and (4) autonomization pressures on local health facilities. While the existence of complaint handling processes is evident in the health system in Vietnam, their utilization was often limited. Different factors which constrained the implementation and use of complaint regulations included health system–related issues as well as social and cultural influences. Conclusion: The study aimed to contribute to improved understanding of complaint handling processes and the key factors influencing these processes in public hospitals in Vietnam. Specific policy implications for improving these processes were proposed, which include improving accountability of service providers and better utilization of information on complaints. PMID:26770804

  2. The Prevalence and Correlates of HIV and Undiagnosed Infection among Men Who Have Sex with Men in Hanoi, Vietnam: Findings from a Cross-sectional, Biobehavioral Study.

    PubMed

    Vu, Nga Thi Thu; Holt, Martin; Phan, Huong Thi Thu; La, Lan Thi; Tran, Gioi Minh; Doan, Tung Thanh; de Wit, John

    2016-01-01

    Men who have sex with men (MSM) are a key population for HIV infection in Vietnam, and the use of amphetamine type substances (ATS) is prevalent and possibly increasing in this population. The reported analysis examines the association between ATS use before or during sex and HIV infection among MSM in Hanoi, Vietnam. This cross-sectional study of 210 MSM was conducted in Hanoi, Vietnam, in late 2014. Men tested for HIV and answered questions about demographic characteristics, sexual sensation seeking, depression, belief in HIV prevention strategies, homosexuality-related stigma and discrimination, recent accessing of HIV prevention services, sexual behaviors and ATS, and other drug use behaviors. We performed logistic regression to assess correlates of HIV infection. HIV prevalence was 6.7% (14/210), and 85.7% (12/14) of HIV-positive men were not aware of their HIV status. Of the 210 participants, 10.5, 2.9, and 3.8% of men had used methamphetamine, amphetamine, and ecstasy before or during sex in the last 3 months. In multivariable analysis, HIV infection was associated with recent sex-related methamphetamine use [adjusted odds ratio (AOR): 5.03, 95% confidence interval (CI): 1.35-18.68], engaging in recent sex work (AOR: 3.55, 95% CI: 1.07-11.75), and homosexuality-related perceived stigma (AOR: 2.32, 95% CI: 0.98-5.47). Findings underscore the importance of integrating methamphetamine use interventions into HIV prevention services and scaling-up of gay-friendly, non-stigmatizing HIV testing services for MSM in Hanoi. We recommend the routine assessment of ATS use and undiagnosed infection in this population.

  3. Clonal Expansion and Microevolution of Quinolone-Resistant Salmonella enterica Serotype Typhi in Vietnam from 1996 to 2004▿

    PubMed Central

    Le, Thi Anh Hong; Fabre, Laëtitia; Roumagnac, Philippe; Grimont, Patrick A. D.; Scavizzi, Maurice R.; Weill, François-Xavier

    2007-01-01

    Salmonella enterica serotype Typhi clinical isolates (n = 91) resistant to nalidixic acid (Nalr) were collected from sporadic cases and minor outbreaks throughout Vietnam between 1996 and 2004. These isolates were typed and compared by four methods: Vi phage typing, PstI ribotyping, XbaI and SpeI pulsed-field gel electrophoresis (PFGE), and single-nucleotide polymorphism (SNP) analysis. The results indicated that 65% of the isolates were not typeable by Vi phage typing. In contrast, the ribotyping and, with more accuracy, the SNP analysis methods indicated that all Nalr isolates belonged to a single clone (ribotype 3a, haplotype H58) that was found previously and that largely consisted of plasmid-encoded multidrug-resistant serotype Typhi isolates. PFGE demonstrated the occurrence of microevolution within this clone. We identified two major combined PFGE profiles: X1-S1 and X3-S6. X3-S6 predominated between 1996 and 2002 but was replaced by X1-S1 after 2002. Nevertheless, PFGE, with a Simpson's index of 0.78, was not considered an optimal discriminatory method for investigating typhoid fever outbreaks in Vietnam. The rate of quinolone resistance increased and the rate of multidrug resistance decreased during the study period. From 2002 to 2004, 80.6% of the isolates from South Vietnam were resistant only to Nal. The mechanism of Nal resistance in most of the isolates (94%) was a mutation in the quinolone resistance-determining chromosomal region of gyrA that led to the amino acid substitution Ser83Phe. No plasmid-located qnrA, qnrB, or qnrS was detected. PMID:17728470

  4. Application of Technology Transfer Process Model for Thailand.

    DTIC Science & Technology

    1980-03-01

    Vietnam, on the south it is bounded by Malaysia and on the west by Burma. (Figure 1 shows the position of Thailand with respect to other countries of... Malaysia . The Central Valley may be physiographically divided into two distinct sub-provinces, namely, the Northern Rolling Plain and the Chao Phya...IKofg STHAILAND R fay of Mnl Re’cgal \\~SOUTH VIET NAM PHILIPPINES S ou t -7,’d CEYLON ~.. e ~Kuamj Lumpur N.* MALAYSIA ~" " SINGAPOA’ - 1%. 0 N E S I ’A c

  5. Mapping H5N1 highly pathogenic avian influenza risk in Southeast Asia

    PubMed Central

    Gilbert, Marius; Xiao, Xiangming; Pfeiffer, Dirk U.; Epprecht, M.; Boles, Stephen; Czarnecki, Christina; Chaitaweesub, Prasit; Kalpravidh, Wantanee; Minh, Phan Q.; Otte, M. J.; Martin, Vincent; Slingenbergh, Jan

    2008-01-01

    The highly pathogenic avian influenza (HPAI) H5N1 virus that emerged in southern China in the mid-1990s has in recent years evolved into the first HPAI panzootic. In many countries where the virus was detected, the virus was successfully controlled, whereas other countries face periodic reoccurrence despite significant control efforts. A central question is to understand the factors favoring the continuing reoccurrence of the virus. The abundance of domestic ducks, in particular free-grazing ducks feeding in intensive rice cropping areas, has been identified as one such risk factor based on separate studies carried out in Thailand and Vietnam. In addition, recent extensive progress was made in the spatial prediction of rice cropping intensity obtained through satellite imagery processing. This article analyses the statistical association between the recorded HPAI H5N1 virus presence and a set of five key environmental variables comprising elevation, human population, chicken numbers, duck numbers, and rice cropping intensity for three synchronous epidemic waves in Thailand and Vietnam. A consistent pattern emerges suggesting risk to be associated with duck abundance, human population, and rice cropping intensity in contrast to a relatively low association with chicken numbers. A statistical risk model based on the second epidemic wave data in Thailand is found to maintain its predictive power when extrapolated to Vietnam, which supports its application to other countries with similar agro-ecological conditions such as Laos or Cambodia. The model's potential application to mapping HPAI H5N1 disease risk in Indonesia is discussed. PMID:18362346

  6. Antimicrobial Drug Resistance of Salmonella enterica Serovar Typhi in Asia and Molecular Mechanism of Reduced Susceptibility to the Fluoroquinolones▿

    PubMed Central

    Chau, Tran Thuy; Campbell, James Ian; Galindo, Claudia M.; Van Minh Hoang, Nguyen; Diep, To Song; Nga, Tran Thu Thi; Van Vinh Chau, Nguyen; Tuan, Phung Quoc; Page, Anne Laure; Ochiai, R. Leon; Schultsz, Constance; Wain, John; Bhutta, Zulfiqar A.; Parry, Christopher M.; Bhattacharya, Sujit K.; Dutta, Shanta; Agtini, Magdarina; Dong, Baiqing; Honghui, Yang; Anh, Dang Duc; Canh, Do Gia; Naheed, Aliya; Albert, M. John; Phetsouvanh, Rattanaphone; Newton, Paul N.; Basnyat, Buddha; Arjyal, Amit; La, Tran Thi Phi; Rang, Nguyen Ngoc; Phuong, Le Thi; Van Be Bay, Phan; von Seidlein, Lorenz; Dougan, Gordon; Clemens, John D.; Vinh, Ha; Hien, Tran Tinh; Chinh, Nguyen Tran; Acosta, Camilo J.; Farrar, Jeremy; Dolecek, Christiane

    2007-01-01

    This study describes the pattern and extent of drug resistance in 1,774 strains of Salmonella enterica serovar Typhi isolated across Asia between 1993 and 2005 and characterizes the molecular mechanisms underlying the reduced susceptibilities to fluoroquinolones of these strains. For 1,393 serovar Typhi strains collected in southern Vietnam, the proportion of multidrug resistance has remained high since 1993 (50% in 2004) and there was a dramatic increase in nalidixic acid resistance between 1993 (4%) and 2005 (97%). In a cross-sectional sample of 381 serovar Typhi strains from 8 Asian countries, Bangladesh, China, India, Indonesia, Laos, Nepal, Pakistan, and central Vietnam, collected in 2002 to 2004, various rates of multidrug resistance (16 to 37%) and nalidixic acid resistance (5 to 51%) were found. The eight Asian countries involved in this study are home to approximately 80% of the world's typhoid fever cases. These results document the scale of drug resistance across Asia. The Ser83→Phe substitution in GyrA was the predominant alteration in serovar Typhi strains from Vietnam (117/127 isolates; 92.1%). No mutations in gyrB, parC, or parE were detected in 55 of these strains. In vitro time-kill experiments showed a reduction in the efficacy of ofloxacin against strains harboring a single-amino-acid substitution at codon 83 or 87 of GyrA; this effect was more marked against a strain with a double substitution. The 8-methoxy fluoroquinolone gatifloxacin showed rapid killing of serovar Typhi harboring both the single- and double-amino-acid substitutions. PMID:17908946

  7. The millipede genus Enghoffosoma Golovatch, 1993 recorded in Vietnam
    for the first time, with descriptions of three new species (Diplopoda, Polydesmida, Paradoxosomatidae).

    PubMed

    Nguyen, Anh D; Golovatch, Sergei I

    2016-07-20

    The genus Enghoffosoma is recorded from Vietnam for the first time, altogether with six species involved. Two species, E. lanceolatum Likhitrakarn et al., 2014 and E. anchoriforme Likhitrakarn et al., 2014, were previously known only from the western part of Laos, thus being new to the fauna of Vietnam. One more species, Sundanina fedorenkoi Golovatch, 2016, very recently described from Dak Lak Province, southern Vietnam, is formally transferred to Enghoffosoma, comb. nov., based both on a strict topotype and a sample from Lam Dong Province, southern Vietnam. Three other species are described as new: E. triangulare sp. nov., E. retrorsum sp. nov. and E. digitatum sp. nov. A key to all six species of Enghoffosoma currently known to occur in Vietnam is provided.

  8. Teaching the Vietnam War in the 1990s.

    ERIC Educational Resources Information Center

    Franklin, H. Bruce

    For an instructor who has been teaching the Vietnam War for over 30 years, the War has been teaching him for even longer. One of the objectives in teaching the Vietnam War in the 1990s is what it meant to teach the Vietnam War in the 1960s. It is easy to forget that the antiwar movement began as an attempt to educate the government and the nation,…

  9. Serum dioxin in Vietnam-era veterans - preliminary report

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    1987-08-14

    Agent orange, a defoliant used in Vietnam, was a mixture of 2,4-DD and 2,4,5-TS. During manufacture 2,4,5-T was contaminated with TCDD, a compound with marked toxicity in some species of experimental animals. In 1979, the US Congress responded to concerns of Vietnam veterans by passing Public Law 96-151 mandating epidemiologic studies of the possible health effects on Vietnam veterans of exposure to herbicides and their associated dioxin contaminants. In 1983, CDC developed a protocol for a historical cohort study of US Army veterans who had served in heavily sprayed areas of Vietnam. A report on that study is presented.

  10. Cost Analysis of Establishing a Relationship Between a Surgical Program in the US and Vietnam

    PubMed Central

    Chu, Quyen D.; Nguyen, Thu; Nguyen, Phuong; Ho, Hung S.

    2012-01-01

    “Twinning” refers to a constructive partnership between hospitals in developed and developing nations. Such an effort may contribute immensely to capacity building for the developing nation, but one of the reasons given for the lack of sustainability is cost. We share a detailed operating cost analysis of our recent experience with an institution in Vietnam. We were awarded a 1-year $54,000 grant from the Vietnam Education Foundation (VEF) to conduct a live tele-video conferencing course on the “Fundamentals of Clinical Surgery” with Thai Binh Medical University (TBMU). In-country lectures as well as an assessment of the needs at TBMU were performed. Total financial assistance and expenditures were tabulated to assess up-front infrastructure investment and annual cost required to sustain the program. The total amount of direct money ($66,686) and in-kind services ($70,276) was $136,962. The initial infrastructure cost was $41,085, which represented 62% of the direct money received. The annual cost to sustain the program was approximately $11,948. We concluded that the annual cost to maintain a “twinning” program was relatively low, and the efforts to sustain a “twinning” program were financially feasible and worthwhile endeavors. “Twinning” should be a critical part of the surgical humanitarian volunteerism effort. PMID:23102082

  11. A Leadership and Managerial Competency Framework for Public Hospital Managers in Vietnam

    PubMed Central

    Van Tuong, Phan; Duc Thanh, Nguyen

    2017-01-01

    Objective The aim of this paper was to develop a leadership and managerial competency framework for public hospital managers in Vietnam. Methods This mixed-method study used a four-step approach. The first step was a position description content analysis to identify the tasks hospital managers are required to carry out. The resulting data were used to identify the leadership and managerial competency factors and items in the second step. In the third step, a workshop was organized to reach consensus about the validity of these competency factors and items. Finally, a quantitative survey was conducted across a sample of 891 hospital managers who are working in the selected hospitals in seven geographical regions in Vietnam to validate the competency scales using exploratory factor analysis (EFA) and Cronbach's alpha. Results The study identified a number of tasks required for public hospital managers and confirmed the competencies for implementing these tasks effectively. Four dimensions with 14 components and 81 items of leadership and managerial competencies were identified. These components exhibited 83.8% of variance and Cronbach's alpha were at good level of 0.9. Conclusions These competencies are required for public hospital managers which provide guidance to the further development of the competency-based training for the current management taskforce and preparing future hospital managers. PMID:29546227

  12. Cost analysis of establishing a relationship between a surgical program in the US and Vietnam.

    PubMed

    Chu, Quyen D; Nguyen, Thu; Nguyen, Phuong; Ho, Hung S

    2012-01-01

    "Twinning" refers to a constructive partnership between hospitals in developed and developing nations. Such an effort may contribute immensely to capacity building for the developing nation, but one of the reasons given for the lack of sustainability is cost. We share a detailed operating cost analysis of our recent experience with an institution in Vietnam. We were awarded a 1-year $54,000 grant from the Vietnam Education Foundation (VEF) to conduct a live tele-video conferencing course on the "Fundamentals of Clinical Surgery" with Thai Binh Medical University (TBMU). In-country lectures as well as an assessment of the needs at TBMU were performed. Total financial assistance and expenditures were tabulated to assess up-front infrastructure investment and annual cost required to sustain the program. The total amount of direct money ($66,686) and in-kind services ($70,276) was $136,962. The initial infrastructure cost was $41,085, which represented 62% of the direct money received. The annual cost to sustain the program was approximately $11,948. We concluded that the annual cost to maintain a "twinning" program was relatively low, and the efforts to sustain a "twinning" program were financially feasible and worthwhile endeavors. "Twinning" should be a critical part of the surgical humanitarian volunteerism effort.

  13. A Leadership and Managerial Competency Framework for Public Hospital Managers in Vietnam.

    PubMed

    Van Tuong, Phan; Duc Thanh, Nguyen

    2017-01-01

    The aim of this paper was to develop a leadership and managerial competency framework for public hospital managers in Vietnam. This mixed-method study used a four-step approach. The first step was a position description content analysis to identify the tasks hospital managers are required to carry out. The resulting data were used to identify the leadership and managerial competency factors and items in the second step. In the third step, a workshop was organized to reach consensus about the validity of these competency factors and items. Finally, a quantitative survey was conducted across a sample of 891 hospital managers who are working in the selected hospitals in seven geographical regions in Vietnam to validate the competency scales using exploratory factor analysis (EFA) and Cronbach's alpha. The study identified a number of tasks required for public hospital managers and confirmed the competencies for implementing these tasks effectively. Four dimensions with 14 components and 81 items of leadership and managerial competencies were identified. These components exhibited 83.8% of variance and Cronbach's alpha were at good level of 0.9. These competencies are required for public hospital managers which provide guidance to the further development of the competency-based training for the current management taskforce and preparing future hospital managers.

  14. Social science research on HIV in Vietnam: a critical review and future directions.

    PubMed

    Dao, Amy; Hirsch, Jennifer S; Giang, Le Minh; Parker, Richard G

    2013-01-01

    Social science research can enhance the response to Vietnam's growing HIV epidemic by capturing the country's rapidly changing social and political context. The present paper reviews the published, peer-reviewed and English-language social science literature on HIV in Vietnam in order to identify critical theoretical and substantive gaps, while laying the groundwork for future research. We found four broad foci for work on the social context of HIV and AIDS in Vietnam: the cultural meanings and social relationships that shape Vietnam's HIV epidemic; stigma and discrimination; social inequality and structural violence as contributors to HIV risk; and, finally, how broader global and social systems shape Vietnam's HIV epidemic. We signal the particular need for additional research on the effects of the media on attitudes towards HIV and AIDS, on social movements, and on health systems, as well as on a number of other key areas. Work along these lines, in addition to more effective communication of policy-relevant findings to those responsible for the development and implementation of policies and programmes, will strengthen Vietnam's response to HIV and AIDS.

  15. Prevalence of tobacco smoking in Vietnam: findings from the Global Adult Tobacco Survey 2015.

    PubMed

    Van Minh, Hoang; Giang, Kim Bao; Ngoc, Nguyen Bao; Hai, Phan Thi; Huyen, Doan Thi Thu; Khue, Luong Ngoc; Lam, Nguyen Tuan; Nga, Pham Thi Quynh; Quan, Nguyen The; Xuyen, Nguyen Thi

    2017-02-01

    We report the prevalence of tobacco smoking among adult populations in Vietnam, 2015. The Vietnam GATS 2015 was a nationally representative survey. 9513 households were selected using two-stage random systematic sampling method. Handheld computers were used for capturing data. Data collection was carried-out by National Statistics Office of Vietnam in 2015. Weight was used in all estimates. The Vietnam GATS 2015 found that the prevalence of smoking in Vietnam was 22.5% overall, 45.3% among men, and 1.1% among women. The overall 2015-2010 reduction in prevalence of any tobacco product was 5.3%. However, the reduction was not statistically significant. The significant reduction in prevalence of tobacco smoking was found for any type of cigarette (-8.4%), and especially for hand-rolled cigarettes (-38.3%). The use of cigarettes significantly decreased in urban areas (-14.7%). The reduction in the prevalence of tobacco smoking in Vietnam during the last 5 years (2010-2015) has not been as high as expected, especially in rural areas. Further efforts are needed to continue to reduce the harms caused by tobacco smoking.

  16. Quantifying the Emergence of Dengue in Hanoi, Vietnam: 1998–2009

    PubMed Central

    Cuong, Hoang Quoc; Hien, Nguyen Tran; Duong, Tran Nhu; Phong, Tran Vu; Cam, Nguyen Nhat; Farrar, Jeremy; Nam, Vu Sinh; Thai, Khoa T. D.; Horby, Peter

    2011-01-01

    Background An estimated 2.4 billion people live in areas at risk of dengue transmission, therefore the factors determining the establishment of endemic dengue in areas where transmission suitability is marginal is of considerable importance. Hanoi, Vietnam is such an area, and following a large dengue outbreak in 2009, we set out to determine if dengue is emerging in Hanoi. Methods and Principal Findings We undertook a temporal and spatial analysis of 25,983 dengue cases notified in Hanoi between 1998 and 2009. Age standardized incidence rates, standardized age of infection, and Standardized Morbidity Ratios (SMR) were calculated. A quasi-Poisson regression model was used to determine if dengue incidence was increasing over time. Wavelet analysis was used to explore the periodicity of dengue transmission and the association with climate variables. After excluding the two major outbreak years of 1998 and 2009 and correcting for changes in population age structure, we identified a significant annual increase in the incidence of dengue cases over the period 1999–2008 (incidence rate ratio  = 1.38, 95% confidence interval  = 1.20–1.58, p value  = 0.002). The age of notified dengue cases in Hanoi is high, with a median age of 23 years (mean 26.3 years). After adjusting for changes in population age structure, there was no statistically significant change in the median or mean age of dengue cases over the period studied. Districts in the central, highly urban, area of Hanoi have the highest incidence of dengue (SMR>3). Conclusions Hanoi is a low dengue transmission setting where dengue incidence has been increasing year on year since 1999. This trend needs to be confirmed with serological surveys, followed by studies to determine the underlying drivers of this emergence. Such studies can provide insights into the biological, demographic, and environmental changes associated with vulnerability to the establishment of endemic dengue. PMID:21980544

  17. 32 CFR 270.1 - Purpose.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.1... incarcerated by the Democratic Republic of Vietnam as a result of the participation by the persons in certain operations conducted by the Republic of Vietnam. ...

  18. 32 CFR 270.1 - Purpose.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.1... incarcerated by the Democratic Republic of Vietnam as a result of the participation by the persons in certain operations conducted by the Republic of Vietnam. ...

  19. 32 CFR 270.1 - Purpose.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.1... incarcerated by the Democratic Republic of Vietnam as a result of the participation by the persons in certain operations conducted by the Republic of Vietnam. ...

  20. 32 CFR 270.1 - Purpose.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.1... incarcerated by the Democratic Republic of Vietnam as a result of the participation by the persons in certain operations conducted by the Republic of Vietnam. ...

  1. 32 CFR 270.1 - Purpose.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... OF CERTAIN FORMER OPERATIVES INCARCERATED BY THE DEMOCRATIC REPUBLIC OF VIETNAM General § 270.1... incarcerated by the Democratic Republic of Vietnam as a result of the participation by the persons in certain operations conducted by the Republic of Vietnam. ...

  2. Vietnam plunges ahead

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Burr, M.T.

    1995-07-01

    Vietnam is moving fast. Facing the need to double its installed power generation capacity by the year 2000, Vietnam is pursuing a range of development alternatives to add an estimated 3,000 MW of new power plants. As part of the country`s progress toward a market economy, Vietnam has relaxed its rules regarding investment in power plants. The country enacted a new electricity law early in 1995, paving the way for private participation in the power sector.

  3. Wicked problems: a value chain approach from Vietnam's dairy product.

    PubMed

    Khoi, Nguyen Viet

    2013-12-01

    In the past few years, dairy industry has become one of the fastest growing sectors in the packaged food industry of Vietnam. However, the value-added creation among different activities in the value chain of Vietnam dairy sector is distributed unequally. In the production activities, the dairy farmers gain low value-added rate due to high input cost. Whereas the processing activities, which managed by big companies, generates high profitability and Vietnamese consumers seem to have few choices due to the lack of dairy companies in the market. These wicked problems caused an unsustainable development to the dairy value chain of Vietnam. This paper, therefore, will map and analyze the value chain of the dairy industry in Vietnam. It will also assess the value created in each activity in order to imply solutions for a sustainable development of Vietnam's dairy industry. M10, M11.

  4. Estimation of Vietnam national burden of disease 2008.

    PubMed

    Nhung, Nguyen Thi Trang; Long, Tran Khanh; Linh, Bui Ngoc; Vos, Theo; Huong, Nguyen Thanh; Anh, Ngo Duc

    2014-09-01

    Burden of disease has been used to assess population health status. This article presents the first estimations of burden of disease in Vietnam in 2008 using disability-adjusted life years (DALYs). DALYs were calculated using the Global Burden of Disease (GBD) methods. Incidence, prevalence of diseases, and causes of death was extracted from Vietnam data. Disability weights were borrowed from GBD and Dutch research. In 2008, the total burden of disease in Vietnam was 12.3 million DALYs. Noncommunicable diseases dominated the total burden of diseases in Vietnam, accounting for 71% of the total burden, and cardiovascular disease was the leading cause group of premature death. While pneumonia was an important cause of burden in Vietnamese children, stroke and depression were the main causes of disease burden among adults. The study provides a snapshot of Vietnamese health status and offers guidance for health policymaking in Vietnam. © 2013 APJPH.

  5. Vibrio cholerae O1 El Tor from southern Vietnam in 2010 was molecularly distinct from that present from 1999 to 2004.

    PubMed

    Nguyen, V H; Pham, H T; Diep, T T; Phan, C D H; Nguyen, T Q; Nguyen, N T N; Ngo, T C; Nguyen, T V; Do, Q K; Phan, H C; Nguyen, B M; Ehara, M; Ohnishi, M; Yamashiro, T; Nguyen, L T P; Izumiya, H

    2016-04-01

    The Vibrio cholerae O1 (VCO1) El Tor biotype appeared during the seventh cholera pandemic starting in 1961, and new variants of this biotype have been identified since the early 1990s. This pandemic has affected Vietnam, and a large outbreak was reported in southern Vietnam in 2010. Pulsed-field gel electrophoresis (PFGE) and multilocus variable-number tandem-repeat analyses (MLVA) were used to screen 34 VCO1 isolates from the southern Vietnam 2010 outbreak (23 patients, five contact persons, and six environmental isolates) to determine if it was genetically distinct from 18 isolates from outbreaks in southern Vietnam from 1999 to 2004, and two isolates from northern Vietnam (2008). Twenty-seven MLVA types and seven PFGE patterns were identified. Both analyses showed that the 2008 and 2010 isolates were distinctly clustered and separated from the 1999-2004 isolates.

  6. Health and reproductive outcomes among American legionnaires in relation to combat and herbicide exposure in Vietnam

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Stellman, S.D.; Stellman, J.M.; Sommer, J.F. Jr.

    1988-12-01

    History of diagnosed illnesses, medical symptoms, and reproductive outcomes and their relation to combat intensity and herbicide exposure were studied, via a mailed questionnaire, among 6,810 American Legionnaires who served during the Vietnam War (42% in Southeast Asia, 58% elsewhere). Heart disease, venereal disease, and benign fatty tumors were reported significantly more often by Vietnam veterans than by controls. Combat intensity was significantly dosage-related to history of high blood pressure, ulcers, arthritis and rheumatism, genito-urinary problems, nervous system disease, major injury, hepatitis, and benign fatty tumors. Agent Orange exposure was significantly dosage-related to history of benign fatty tumors, adult acne,more » skin rash with blisters, and increased sensitivity of eyes to light. Rates of the latter two conditions and of change in skin color were especially elevated in men whose military occupations involved direct handling of herbicides. Neither combat nor Agent Orange exposure was associated with difficulty in conception, time to conception of first child, or to birthweight or sex ratio of offspring, but maternal smoking was strongly related to reduced birthweight. The percentage of spouses' pregnancies which resulted in miscarriages was significantly higher for Vietnam veterans than controls. Logistic regression analysis showed that Agent Orange exposure and maternal smoking were both independently and significantly associated with miscarriage rates in a dose-related manner.« less

  7. The prevalence and genetic diversity of group A rotaviruses on pig farms in the Mekong Delta region of Vietnam

    PubMed Central

    Hong Anh, Pham; Carrique-Mas, Juan J.; Van Cuong, Nguyen; Hoa, Ngo Thi; Lam Anh, Nguyet; Duy, Do Tien; Hien, Vo Be; Vu Tra My, Phan; Rabaa, Maia A.; Farrar, Jeremy; Baker, Stephen; Bryant, Juliet E.

    2014-01-01

    Group A rotaviruses (ARoVs) are a common cause of severe diarrhea among children worldwide and the cause of approximately 45% of pediatric hospitalizations for acute diarrhea in Vietnam. ARoVs are known to cause significant economic losses to livestock producers by reducing growth performance and production efficiencies, however little is known about the implications of asymptomatic endemic circulation of ARoV. We aimed to determine the prevalence and predominant circulating genotypes of ARoVs on pig farms in a southern province of Vietnam. We found overall animal-level and farm-level prevalence of 32.7% (239/730) and 74% (77/104), respectively, and identified six different G types and 4 P types in various combinations (G2, G3, G4, G5, G9, G11 and P[6], P[13], P[23], and P[34]). There was no significant association between ARoV infection and clinical disease in pigs, suggesting that endemic asymptomatic circulation of ARoV may complicate rotavirus disease attribution during outbreaks of diarrhea in swine. Sequence analysis of the detected ARoVs suggested homology to recent human clinical cases and extensive genetic diversity. The epidemiological relevance of these findings for veterinary practitioners and to ongoing pediatric ARoV vaccine initiatives in Vietnam merits further study. PMID:24679960

  8. Thirty years of vaccination in Vietnam: Impact and cost-effectiveness of the national Expanded Programme on Immunization

    PubMed Central

    Jit, Mark; Huyen, Dang Thi Thanh; Friberg, Ingrid; Van Minh, Hoang; Kiet, Pham Huy Tuan; Walker, Neff; Van Cuong, Nguyen; Duong, Tran Nhu; Toda, Kohei; Hutubessy, Raymond; Fox, Kimberley; Hien, Nguyen Tran

    2015-01-01

    Introduction Countries like Vietnam transitioning to middle-income status increasingly bear the cost of both existing and new vaccines. However, the impact and cost-effectiveness of the Expanded Programme on Immunization (EPI) as a whole has never been assessed on a country level. Methods Data on vaccine-preventable disease incidence and mortality from Vietnam's national surveillance was analysed to estimate the likely impact that vaccination in 1980–2010 may have had. Adjustment for under-reporting was made by examining trends in reported mumps incidence and in case-fatality risks for each disease. The same data were separately analysed using the Lives Saved Tool (LiST) to give an alternative estimate of impact. The financial cost of EPI in 1996–2010 was also estimated from the perspective of service provider. Results National surveillance data suggests that up to 5.7 million diseases cases and 26,000 deaths may have been prevented by EPI. Analysis using LiST suggests that even more deaths (370,000) may have been prevented by measles and pertussis vaccination alone. The cost-effectiveness of EPI is estimated to be around $1000–$27,000 per death prevented. Conclusion Two separate approaches to assessing EPI impact in Vietnam give different quantitative results but a common conclusion: that EPI has made a substantial impact on mortality and represents good value for money. PMID:25919167

  9. Salience and Impact of Health Warning Label on Cigarette Packs in Vietnam: Findings From the Global Adult Tobacco Survey 2015.

    PubMed

    Ngoc Bich, Nguyen; Thu Ngan, Tran; Bao Giang, Kim; Thi Hai, Phan; Thi Thu Huyen, Doan; Ngoc Khue, Luong; Tuan Lam, Nguyen; Van Minh, Hoang; Thi Quynh Nga, Pham; The Quan, Nguyen; Loan, Vu Hoang

    2018-04-13

    Viet Nam is among the countries having highest rate of male smokers in the world. The country has joined the Global Tobacco Surveillance System since 2010. Under this system, two rounds of Global Adult Tobacco Survey (GATS) were conducted in 2010 and 2015. Those two surveys provide excellent comparable data on tobacco usage and its related aspects in Vietnam. This study using the data from GATS 2015 to examine the salience and impact of cigarette pack health warnings on quitting intention in Vietnam. The Vietnam GATS 2015 was a nationally representative survey in which 9,513 households were selected using two-stage random systematic sampling method. Results of multivariate analysis showed that the strongest predictor for quit intention because of health warnings was "ever made a quit attempt in the past 12 months" followed by "believes that tobacco smoking causes serious illness". Compared to GATS 2010, GATS 2015 observed the increase in salience of cigarette health warnings. However, the current pictorial health warnings are losing their impact on motivating intention to quit. The results highlight that it is time to start the rotation cycle to refresh the current health warning set. Actions to select a new and more impressive set of pictorial health warnings should be developed as soon as possible.

  10. Influenza A Viruses of Swine (IAV-S) in Vietnam from 2010 to 2015: Multiple Introductions of A(H1N1)pdm09 Viruses into the Pig Population and Diversifying Genetic Constellations of Enzootic IAV-S.

    PubMed

    Takemae, Nobuhiro; Harada, Michiyo; Nguyen, Phuong Thanh; Nguyen, Tung; Nguyen, Tien Ngoc; To, Thanh Long; Nguyen, Tho Dang; Pham, Vu Phong; Le, Vu Tri; Do, Hoa Thi; Vo, Hung Van; Le, Quang Vinh Tin; Tran, Tan Minh; Nguyen, Thanh Duy; Thai, Phuong Duy; Nguyen, Dang Hoang; Le, Anh Quynh Thi; Nguyen, Diep Thi; Uchida, Yuko; Saito, Takehiko

    2017-01-01

    Active surveillance of influenza A viruses of swine (IAV-S) involving 262 farms and 10 slaughterhouses in seven provinces in northern and southern Vietnam from 2010 to 2015 yielded 388 isolates from 32 farms; these viruses were classified into H1N1, H1N2, and H3N2 subtypes. Whole-genome sequencing followed by phylogenetic analysis revealed that the isolates represented 15 genotypes, according to the genetic constellation of the eight segments. All of the H1N1 viruses were entirely A(H1N1)pdm09 viruses, whereas all of the H1N2 and H3N2 viruses were reassortants among 5 distinct ancestral viruses: H1 and H3 triple-reassortant (TR) IAV-S that originated from North American pre-2009 human seasonal H1, human seasonal H3N2, and A(H1N1)pdm09 viruses. Notably, 93% of the reassortant IAV-S retained M genes that were derived from A(H1N1)pdm09, suggesting some advantage in terms of their host adaptation. Bayesian Markov chain Monte Carlo analysis revealed that multiple introductions of A(H1N1)pdm09 and TR IAV-S into the Vietnamese pig population have driven the genetic diversity of currently circulating Vietnamese IAV-S. In addition, our results indicate that a reassortant IAV-S with human-like H3 and N2 genes and an A(H1N1)pdm09 origin M gene likely caused a human case in Ho Chi Minh City in 2010. Our current findings indicate that human-to-pig transmission as well as cocirculation of different IAV-S have contributed to diversifying the gene constellations of IAV-S in Vietnam. This comprehensive genetic characterization of 388 influenza A viruses of swine (IAV-S) isolated through active surveillance of Vietnamese pig farms from 2010 through 2015 provides molecular epidemiological insight into the genetic diversification of IAV-S in Vietnam after the emergence of A(H1N1)pdm09 viruses. Multiple reassortments among A(H1N1)pdm09 viruses and enzootic IAV-S yielded 14 genotypes, 9 of which carried novel gene combinations. The reassortants that carried M genes derived from A(H1N1)pdm09 viruses became predominant, replacing those of the IAV-S that had been endemic in Vietnam since 2011. Notably, one of the novel reassortants likely caused a human case in Vietnam. Given that Vietnam is the second-largest pig-producing country in Asia, continued monitoring of IAV-S is highly important from the viewpoints of both the swine industry and human public health. Copyright © 2016 American Society for Microbiology.

  11. Influenza A Viruses of Swine (IAV-S) in Vietnam from 2010 to 2015: Multiple Introductions of A(H1N1)pdm09 Viruses into the Pig Population and Diversifying Genetic Constellations of Enzootic IAV-S

    PubMed Central

    Takemae, Nobuhiro; Harada, Michiyo; Nguyen, Phuong Thanh; Nguyen, Tung; Nguyen, Tien Ngoc; To, Thanh Long; Nguyen, Tho Dang; Pham, Vu Phong; Le, Vu Tri; Do, Hoa Thi; Vo, Hung Van; Le, Quang Vinh Tin; Tran, Tan Minh; Nguyen, Thanh Duy; Thai, Phuong Duy; Nguyen, Dang Hoang; Le, Anh Quynh Thi; Nguyen, Diep Thi; Uchida, Yuko

    2016-01-01

    ABSTRACT Active surveillance of influenza A viruses of swine (IAV-S) involving 262 farms and 10 slaughterhouses in seven provinces in northern and southern Vietnam from 2010 to 2015 yielded 388 isolates from 32 farms; these viruses were classified into H1N1, H1N2, and H3N2 subtypes. Whole-genome sequencing followed by phylogenetic analysis revealed that the isolates represented 15 genotypes, according to the genetic constellation of the eight segments. All of the H1N1 viruses were entirely A(H1N1)pdm09 viruses, whereas all of the H1N2 and H3N2 viruses were reassortants among 5 distinct ancestral viruses: H1 and H3 triple-reassortant (TR) IAV-S that originated from North American pre-2009 human seasonal H1, human seasonal H3N2, and A(H1N1)pdm09 viruses. Notably, 93% of the reassortant IAV-S retained M genes that were derived from A(H1N1)pdm09, suggesting some advantage in terms of their host adaptation. Bayesian Markov chain Monte Carlo analysis revealed that multiple introductions of A(H1N1)pdm09 and TR IAV-S into the Vietnamese pig population have driven the genetic diversity of currently circulating Vietnamese IAV-S. In addition, our results indicate that a reassortant IAV-S with human-like H3 and N2 genes and an A(H1N1)pdm09 origin M gene likely caused a human case in Ho Chi Minh City in 2010. Our current findings indicate that human-to-pig transmission as well as cocirculation of different IAV-S have contributed to diversifying the gene constellations of IAV-S in Vietnam. IMPORTANCE This comprehensive genetic characterization of 388 influenza A viruses of swine (IAV-S) isolated through active surveillance of Vietnamese pig farms from 2010 through 2015 provides molecular epidemiological insight into the genetic diversification of IAV-S in Vietnam after the emergence of A(H1N1)pdm09 viruses. Multiple reassortments among A(H1N1)pdm09 viruses and enzootic IAV-S yielded 14 genotypes, 9 of which carried novel gene combinations. The reassortants that carried M genes derived from A(H1N1)pdm09 viruses became predominant, replacing those of the IAV-S that had been endemic in Vietnam since 2011. Notably, one of the novel reassortants likely caused a human case in Vietnam. Given that Vietnam is the second-largest pig-producing country in Asia, continued monitoring of IAV-S is highly important from the viewpoints of both the swine industry and human public health. PMID:27795418

  12. Teacher Development: A Real Need for English Departments in Vietnam.

    ERIC Educational Resources Information Center

    Hiep, Pham Hoa

    2001-01-01

    Examines English-as-a-Foreign-Language (EFL) teacher training and teacher development in Vietnam. Suggests ways to promote professional development among EFL teachers in Vietnam, which may be applicable to similar situations in other countries. (Author/VWL)

  13. Spatiotemporal Structure of Molecular Evolution of H5N1 Highly Pathogenic Avian Influenza Viruses in Vietnam

    PubMed Central

    Emch, Michael; Jobe, R. Todd; Moody, Aaron

    2010-01-01

    Background Vietnam is one of the countries most affected by outbreaks of H5N1 highly pathogenic avian influenza viruses. First identified in Vietnam in poultry in 2001 and in humans in 2004, the virus has since caused 111 cases and 56 deaths in humans. In 2003/2004 H5N1 outbreaks, nearly the entire poultry population of Vietnam was culled. Our earlier study (Wan et al., 2008, PLoS ONE, 3(10): e3462) demonstrated that there have been at least six independent H5N1 introductions into Vietnam and there were nine newly emerged reassortants from 2001 to 2007 in Vietnam. H5N1 viruses in Vietnam cluster distinctly around Hanoi and Ho Chi Minh City. However, the nature of the relationship between genetic divergence and geographic patterns is still unclear. Methodology/Principal Findings In this study, we hypothesized that genetic distances between H5N1 viruses in Vietnam are correlated with geographic distances, as the result of distinct population and environment patterns along Vietnam's long north to south longitudinal extent. Based on this hypothesis, we combined spatial statistical methods with genetic analytic techniques and explicitly used geographic space to explore genetic evolution of H5N1 highly pathogenic avian influenza viruses at the sub-national scale in Vietnam. Our dataset consisted of 125 influenza viruses (with whole genome sets) isolated in Vietnam from 2003 to 2007. Our results document the significant effect of space and time on genetic evolution and the rise of two regional centers of genetic mixing by 2007. These findings give insight into processes underlying viral evolution and suggest that genetic differentiation is associated with the distance between concentrations of human and poultry populations around Hanoi and Ho Chi Minh City. Conclusions/Significance The results show that genetic evolution of H5N1 viruses in Vietnamese domestic poultry is highly correlated with the location and spread of those viruses in geographic space. This correlation varies by scale, time, and gene, though a classic isolation by distance pattern is observed. This study is the first to characterize the geographic structure of influenza viral evolution at the sub-national scale in Vietnam and can shed light on how H5N1 HPAIVs evolve in certain geographic settings. PMID:20072619

  14. [The current situation and agendas in the prevention and control of non-communicable diseases in Vietnam].

    PubMed

    Hattori, Kiyoko; Uda, Hidenori; Hitomi, Yoshiaki; Yano, Ryosuke; Saijo, Takao; Watanabe, Naoyuki; Satomi, Maki; Yoshida, Aya; Oishi, Osamu; Yamashita, Tsuyoshi; Kamenosono, Akira

    2018-01-01

    Objectives In Vietnam, the number of patients with non-communicable diseases (NCDs) has been increasing in recent years in association with the country's remarkable economic growth and corresponding changes in its population's lifestyle. The purposes of this research were to identify the challenges in the prevention and control of NCDs in Vietnam and to discuss countermeasures for NCDs in Vietnam and Japan.Methods As a 2015 Regional Public Health Overall Promotion Project, an investigation team consisting of 11 public health physicians visited Hanoi, the capital of Vietnam, and its vicinities from January 11, 2016 to January 15, 2016. In Hanoi and its vicinities, we visited local healthcare institutions, such as the World Health Organization(WHO) Representative Office in Vietnam and Ministry of Health of Vietnam, and discussed the prevention and control of NCDs in Vietnam and Japan.Results According to a survey in 2014, 73% of people of all age groups in Vietnam died from NCDs and the number of people suffering from NCDs has been sharply increasing in recent years. Major behavioral risk factors are dietary risks, tobacco smoke, alcohol use, and physical inactivity. There are four main problems with prevention and control of NCDs: 1) low awareness among the people of NCDs, 2) regional disparity of medical services, 3) shortage of healthcare staff members with professional knowledge, and 4) poor NCD surveillance. In Vietnam, an NCD program with screening methods and medical guidelines for respective diseases was developed in 2002. However, it only covered tertiary prevention and did not fully describe the primary and secondary prevention measures. Currently, with the technical assistance of the WHO, the implementation of countermeasures emphasizing prevention and control to reduce NCD risk factors has only just begun.Conclusion It was considered that educating each person in Vietnam on NCD prevention measures would be necessary and that a national policy, like Healthy Japan 21 of Japan, and a nationwide screening project, such as specific medical checkups, could serve as a useful reference. We found that public health activities in Japan to penetrate a region mainly involving public health nurses had played important roles for Japanese people's health. Furthermore, Japan shares with Vietnam the challenges including the shortage of human resources, and therefore, the securement of healthcare staff members who confront health challenges and the enhancement of their abilities is required.

  15. Spatiotemporal structure of molecular evolution of H5N1 highly pathogenic avian influenza viruses in Vietnam.

    PubMed

    Carrel, Margaret A; Emch, Michael; Jobe, R Todd; Moody, Aaron; Wan, Xiu-Feng

    2010-01-08

    Vietnam is one of the countries most affected by outbreaks of H5N1 highly pathogenic avian influenza viruses. First identified in Vietnam in poultry in 2001 and in humans in 2004, the virus has since caused 111 cases and 56 deaths in humans. In 2003/2004 H5N1 outbreaks, nearly the entire poultry population of Vietnam was culled. Our earlier study (Wan et al., 2008, PLoS ONE, 3(10): e3462) demonstrated that there have been at least six independent H5N1 introductions into Vietnam and there were nine newly emerged reassortants from 2001 to 2007 in Vietnam. H5N1 viruses in Vietnam cluster distinctly around Hanoi and Ho Chi Minh City. However, the nature of the relationship between genetic divergence and geographic patterns is still unclear. In this study, we hypothesized that genetic distances between H5N1 viruses in Vietnam are correlated with geographic distances, as the result of distinct population and environment patterns along Vietnam's long north to south longitudinal extent. Based on this hypothesis, we combined spatial statistical methods with genetic analytic techniques and explicitly used geographic space to explore genetic evolution of H5N1 highly pathogenic avian influenza viruses at the sub-national scale in Vietnam. Our dataset consisted of 125 influenza viruses (with whole genome sets) isolated in Vietnam from 2003 to 2007. Our results document the significant effect of space and time on genetic evolution and the rise of two regional centers of genetic mixing by 2007. These findings give insight into processes underlying viral evolution and suggest that genetic differentiation is associated with the distance between concentrations of human and poultry populations around Hanoi and Ho Chi Minh City. The results show that genetic evolution of H5N1 viruses in Vietnamese domestic poultry is highly correlated with the location and spread of those viruses in geographic space. This correlation varies by scale, time, and gene, though a classic isolation by distance pattern is observed. This study is the first to characterize the geographic structure of influenza viral evolution at the sub-national scale in Vietnam and can shed light on how H5N1 HPAIVs evolve in certain geographic settings.

  16. Genetic diversity and geographic differentiation analysis of duckweed using inter-simple sequence repeat markers.

    PubMed

    Xue, Huiling; Xiao, Yao; Jin, Yanling; Li, Xinbo; Fang, Yang; Zhao, Hai; Zhao, Yun; Guan, Jiafa

    2012-01-01

    Duckweed, with rapid growth rate and high starch content, is a new alternate feedstock for bioethanol production. The genetic diversity among 27 duckweed populations of seven species in genus Lemna and Spirodela from China and Vietnam was analyzed by ISSR-PCR. Eight ISSR primers generating a reproducible amplification banding pattern had been screened. 89 polymorphic bands were scored out of the 92 banding patterns of 16 Lemna populations, accounting for 96.74% of the polymorphism. 98 polymorphic bands of 11 Spirodela populations were scored out of 99 banding patterns, and the polymorphism was 98.43%. The genetic distance of Lemna varied from 0.127 to 0.784, and from 0.138 to 0.902 for Spirodela, which indicated a high level of genetic variation among the populations studied. The unweighted pair group method with arithmetic average (UPGMA) cluster analysis corresponded well with the genetic distance. Populations from Sichuan China grouped together and so did the populations from Vietnam, which illuminated populations collected from the same region clustered into one group. Especially, the only one population from Tibet was included in subgroup A2 alone. Clustering analysis indicated that the geographic differentiation of collected sites correlated closely with the genetic differentiation of duckweeds. The results suggested that geographic differentiation had great influence on genetic diversity of duckweed in China and Vietnam at the regional scale. This study provided primary guidelines for collection, conservation, characterization of duckweed resources for bioethanol production etc.

  17. Performance of American POWs in the Vietnam War: Adequate Training or Creative Leadership?

    DTIC Science & Technology

    2005-04-01

    training could have fully prepared these airmen for the grueling captivity they faced as POWs in North Vietnam, but rather it was their heroism...intends to show that no amount of training could have fully prepared these airmen for the grueling captivity they faced as POWs in North Vietnam, but...training could have fully prepared our men for the grueling captivity they faced in North Vietnam, but rather it was their heroism, innovation

  18. Intelligence Operations In Small Wars: A Comparison Of The Malayan Emergency And Vietnam War

    DTIC Science & Technology

    2013-04-01

    Effect, 18. 41 Spencer C. Tucker, David Coffey, Nguyen Cong Luan, Nike Nichols, and Sandra Wittman, eds, Encyclopedia of the Vietnam War Volume One: A...War: The Unexamined Victories and Final Tragedy of America’s Last Years in Vietnam, (Orlando, FL :Harcourt, Inc ., 1999), 72-73. 91 Sorley, A Better...Victories and Final Tragedy of America’s Last Years in Vietnam. Orlando, FL: Harcourt, Inc ., 1999. Stubbs, Richard. Hearts and Minds in

  19. Civil-Military Relations in the French Fourth Republic during the First Indochina War

    DTIC Science & Technology

    2015-05-21

    90 Spencer C. Tucker, Vietnam (Lexington, KY: University of Kentucky Press, 1999), 29. 91 Ibid., 30. 92 Ibid., 38. 93 Ibid. 94 Spruyt...the Making of America’s Vietnam. New York, NY: Random House, 2012. Luthy, Herbert . France against Herself: A Perceptive Study of France’s Past, Her...Vietnam 1946: How the War Began. Berkeley, CA: University of California Press, 2009. 52 Tucker, Spencer C. Vietnam. Lexington, KY: University of

  20. U.S.-Vietnam Relations: Background and Issues for Congress

    DTIC Science & Technology

    2008-10-31

    Clips, Produced by U.S. State Department Hanoi and Ho Chi Minh City Public Affairs Sections; Oxford Analytica ( OA ), “Vietnam/Cambodia/Laos: Crisis Could...Spur Reforms,” October 24 2008. 8 For these contrasting views, see EIU, Vietnam Country Report, October 2008, and OA , “Vietnam/Cambodia/Laos: Crisis...military bases in Bien Hoa, Da Nang, Nha Trang, and Phu Cat. In February 2007, the United States announced it would provide $400,000 to support mitigation

  1. Comparison of serum levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin with indirect estimates of Agent Orange exposure among Vietnam veterans. Final report

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    1989-09-01

    The report tests the validity of several indirect methods for estimating the exposure of ground troops to Agent Orange in Vietnam during 1966-69. The study identified a sample of U.S. Army Vietnam veterans of that era and asked them to have blood drawn so that the level of 2,3,7,8-tetrachlorodibenzo-p- dioxin (TCDD) in serum could be measured. These veterans were selected from among those who served in 65 combat battalions in III Corps, a heavily sprayed part of Vietnam around Saigon. The men selected had all served only one tour in Vietnam and had been discharged with a pay grade ofmore » E1-E5, after having spent, on the average, over 300 days in Vietnam. The sample was chosen after the veterans had been stratified on likelihood of exposure (time and space proximity to recorded sprays) according to military records. For comparison, a sample of non-Vietnam U.S. Army veterans of the same era was also examined. The results show no meaningful association between TCDD levels and indirect estimate of Agent Orange exposure in Vietnam, with or without adjustment for other characteristics of the veterans, including age, race, body mass index, and self-reported civilian occupational and home herbicide exposure.« less

  2. Soft tissue sarcoma and military service in Vietnam: a case-control study

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Kang, H.; Enziger, F.; Breslin, P.

    1987-10-01

    A case-control study was conducted in men who were of draftable age during the Vietnam conflict to examine the association of soft tissue sarcomas (STSs) with military service in Vietnam as well as other host and environmental risk factors. A total of 217 STS cases selected from the Armed Forces Institute of Pathology were compared to 599 controls for Vietnam service, occupational and nonoccupational exposure to various chemicals, occupational history, medical history, and life-style (smoking, alcohol, coffee, etc.). Military service information was verified by a review of the patient's military personnel records. Other information was ascertained from a telephone interviewmore » with either subjects or their next of kin. Cases and controls were stratified on the basis of the hospital type (civilian, Veterans Administration, and military); the Mantel-Haenszel estimate of the odds ratio (OR), adjusted for the effects of the stratification variable, was calculated. Vietnam veterans in general did not have an increased risk of STS when compared to those men who had never been in Vietnam (OR, 0.85; 95% confidence interval, 0.54-1.36). Subgroups of Vietnam veterans who had higher estimated opportunities for Agent Orange exposure seemed to be at greater risk of STSs when their counterparts in Vietnam were taken as a reference group. However, this risk was not statistically significant.« less

  3. 75 FR 78207 - Notice of Availability of a Pest Risk Analysis for the Importation of Fresh Rambutan Fruit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-15

    ...] Notice of Availability of a Pest Risk Analysis for the Importation of Fresh Rambutan Fruit (Nephelium...: Notice. SUMMARY: We are advising the public that we have prepared a pest risk analysis that evaluates the... Malaysia and Vietnam. We are making the pest risk analysis available to the public for review and comment...

  4. Maternal health care professionals' perspectives on the provision and use of antenatal and delivery care: a qualitative descriptive study in rural Vietnam

    PubMed Central

    2010-01-01

    Background High quality maternal health care is an important tool to reduce maternal and neonatal mortality. Services offered should be evidence based and adapted to the local setting. This qualitative descriptive study explored the perspectives and experiences of midwives, assistant physicians and medical doctors on the content and quality of maternal health care in rural Vietnam. Method The study was performed in a rural district in northern Vietnam. Four focus group discussions with health care professionals at primary health care level were conducted. The data was analysed using qualitative manifest and latent content analysis. Result Two main themes emerged: "Contextual conditions for maternal health care" and "Balancing between possibilities and constraints". Contextual conditions influenced both pregnant women's use of maternal health care and health care professionals' performance. The study participants stated that women's uses of maternal health care were influenced by economical constraints and cultural norms that impeded their autonomy in relation to childbearing. Structural constraints within the health care system included inadequate financing of the primary health care, resulting in lack of human resources, professional re-training and adequate equipment. Conclusion Contextual conditions strongly influenced the performance and interaction between pregnant women and health care professionals within antenatal care and delivery care in a rural district of Vietnam. Although Vietnam is performing comparatively well in terms of low maternal and child mortality figures, this study revealed midwives' and other health care professionals' perceived difficulties in their daily work. It seemed maternal health care was under-resourced in terms of staff, equipment and continuing education activities. The cultural setting in Vietnam constituting a strong patriarchal society and prevailing Confucian norms limits women's autonomy and reduce their possibility to make independent decisions about their own reproductive health. This issue should be further addressed by policy-makers. Strategies to reduce inequities in maternal health care for pregnant women are needed. The quality of client-provider interaction and management of pregnancy may be strengthened by education, human resources, re-training and provision of essential equipment. PMID:20946681

  5. Maternal health care professionals' perspectives on the provision and use of antenatal and delivery care: a qualitative descriptive study in rural Vietnam.

    PubMed

    Graner, Sophie; Mogren, Ingrid; Duong, Le Q; Krantz, Gunilla; Klingberg-Allvin, Marie

    2010-10-14

    High quality maternal health care is an important tool to reduce maternal and neonatal mortality. Services offered should be evidence based and adapted to the local setting. This qualitative descriptive study explored the perspectives and experiences of midwives, assistant physicians and medical doctors on the content and quality of maternal health care in rural Vietnam. The study was performed in a rural district in northern Vietnam. Four focus group discussions with health care professionals at primary health care level were conducted. The data was analysed using qualitative manifest and latent content analysis. Two main themes emerged: "Contextual conditions for maternal health care" and "Balancing between possibilities and constraints". Contextual conditions influenced both pregnant women's use of maternal health care and health care professionals' performance. The study participants stated that women's uses of maternal health care were influenced by economical constraints and cultural norms that impeded their autonomy in relation to childbearing. Structural constraints within the health care system included inadequate financing of the primary health care, resulting in lack of human resources, professional re-training and adequate equipment. Contextual conditions strongly influenced the performance and interaction between pregnant women and health care professionals within antenatal care and delivery care in a rural district of Vietnam. Although Vietnam is performing comparatively well in terms of low maternal and child mortality figures, this study revealed midwives' and other health care professionals' perceived difficulties in their daily work. It seemed maternal health care was under-resourced in terms of staff, equipment and continuing education activities. The cultural setting in Vietnam constituting a strong patriarchal society and prevailing Confucian norms limits women's autonomy and reduce their possibility to make independent decisions about their own reproductive health. This issue should be further addressed by policy-makers. Strategies to reduce inequities in maternal health care for pregnant women are needed. The quality of client-provider interaction and management of pregnancy may be strengthened by education, human resources, re-training and provision of essential equipment.

  6. Authoritarianism Revisited: Evidence for an Aggression Factor.

    ERIC Educational Resources Information Center

    Raden, David

    1981-01-01

    Performed a principal components factor analysis on scores of 245 undergraduates to a short version of the F Scale and measures of prejudice, attitude toward welfare, toleration of political deviance, punitiveness toward criminals, and support of the Vietnam War. Analysis produced two factors: authoritarian aggression and attitude toward welfare.…

  7. A description of the lactic acid bacteria microbiota associated with the production of traditional fermented vegetables in Vietnam.

    PubMed

    Nguyen, Doan Thi Lam; Van Hoorde, Koenraad; Cnockaert, Margo; De Brandt, Evie; Aerts, Maarten; Binh Thanh, Le; Vandamme, Peter

    2013-04-15

    An important part of the daily nourishment in Vietnam constitutes of fermented vegetables. Bacteria and especially lactic acid bacteria play a central role in the production of many fermented vegetables. The current study was conducted to investigate the diversity of native lactic acid bacteria (LAB) populations in 'dua muoi' (mustard and beet fermentation) and 'ca muoi' (eggplant fermentation), three types of popular traditional fermented vegetables of Vietnamese origin. To this end a polyphasic approach combining matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and pheS gene sequence analysis was used. In addition, denaturing gradient gel electrophoresis was performed as a culture-independent method to complement the observed culturable diversity data. A total of 881 LAB isolates were recovered from 21 different samples. Predominant LAB associated with 'dua muoi' and 'ca muoi' were identified as Lactobacillus fermentum (56.6%), Lactobacillus pentosus (24.4%) and Lactobacillus plantarum (17.1%). Less abundant species were Pediococcus pentosaceus (1.0%) and Lactobacillus brevis (0.5%). Species present less than 0.1% included Lactobacillus paracasei, Lactobacillus pantheris and Pediococcus acidilactici. In contrast to fermented mustard and beet with the highest prevalence of L. fermentum, the species most recovered from fermented eggplant samples was L. pentosus. In addition, an important degree of genetic variability within the different predominant species was observed and strain dependency correlating with the type of fermented vegetable or location of production could be demonstrated using multivariate statistics. This research gives an extensive and detailed inventory of the LAB diversity associated with the production of diverse Vietnamese fermented vegetables and demonstrates the influence of type of raw material and/or production location and conditions on this diversity. Copyright © 2013 Elsevier B.V. All rights reserved.

  8. Household trends in access to improved water sources and sanitation facilities in Vietnam and associated factors: findings from the Multiple Indicator Cluster Surveys, 2000-2011.

    PubMed

    Tuyet-Hanh, Tran Thi; Lee, Jong-Koo; Oh, Juhwan; Van Minh, Hoang; Ou Lee, Chul; Hoan, Le Thi; Nam, You-Seon; Long, Tran Khanh

    2016-01-01

    Despite progress made by the Millennium Development Goal (MDG) number 7.C, Vietnam still faces challenges with regard to the provision of access to safe drinking water and basic sanitation. This paper describes household trends in access to improved water sources and sanitation facilities separately, and analyses factors associated with access to improved water sources and sanitation facilities in combination. Secondary data from the Vietnam Multiple Indicator Cluster Survey in 2000, 2006, and 2011 were analyzed. Descriptive statistics and tests of significance describe trends over time in access to water and sanitation by location, demographic and socio-economic factors. Binary logistic regressions (2000, 2006, and 2011) describe associations between access to water and sanitation, and geographic, demographic, and socio-economic factors. There have been some outstanding developments in access to improved water sources and sanitation facilities from 2000 to 2011. In 2011, the proportion of households with access to improved water sources and sanitation facilities reached 90% and 77%, respectively, meeting the 2015 MDG targets for safe drinking water and basic sanitation set at 88% and 75%, respectively. However, despite these achievements, in 2011, only 74% of households overall had access to combined improved drinking water and sanitation facilities. There were also stark differences between regions. In 2011, only 47% of households had access to both improved water and sanitation facilities in the Mekong River Delta compared with 94% in the Red River Delta. In 2011, households in urban compared to rural areas were more than twice as likely (odds ratio [OR]: 2.2; 95% confidence interval [CI]: 1.9-2.5) to have access to improved water and sanitation facilities in combination, and households in the highest compared with the lowest wealth quintile were over 40 times more likely (OR: 42.3; 95% CI: 29.8-60.0). More efforts are required to increase household access to both improved water and sanitation facilities in the Mekong River Delta, South East and Central Highlands regions of Vietnam. There is also a need to address socio-economic factors associated with inadequate access to improved sanitation facilities.

  9. Outpatient treatment of children with severe pneumonia with oral amoxicillin in four countries: the MASS study.

    PubMed

    Addo-Yobo, Emmanuel; Anh, Dang D; El-Sayed, Hesham F; Fox, LeAnne M; Fox, Matthew P; MacLeod, William; Saha, Samir; Tuan, Tran A; Thea, Donald M; Qazi, Shamim

    2011-08-01

    A recent randomized clinical trial demonstrated home-based treatment of WHO-defined severe pneumonia with oral amoxicillin was equivalent to hospital-based therapy and parenteral antibiotics. We aimed to determine whether this finding is generalizable across four countries. Multicentre observational study in Bangladesh, Egypt, Ghana and Vietnam between November 2005 and May 2008. Children aged 3-59 months with WHO-defined severe pneumonia were enrolled at participating health centres and managed at home with oral amoxicillin (80-90 mg/kg per day) for 5 days. Children were followed up at home on days 1, 2, 3 and 6 and at a facility on day 14 to look for cumulative treatment failure through day 6 and relapse between days 6 and 14. Of 6582 children screened, 873 were included, of whom 823 had an outcome ascertained. There was substantial variation in presenting characteristics by site. Bangladesh and Ghana had fever (97%) as a more common symptom than Egypt (74%) and Vietnam (66%), while in Vietnam, audible wheeze was more common (49%) than at other sites (range 2-16%). Treatment failure by day 6 was 9.2% (95% CI: 7.3-11.2%) across all sites, varying from 6.4% (95% CI: 3.1-9.8%) in Ghana to 13.2% (95% CI: 8.4-18.0%) in Vietnam; 2.7% (95% CI: 1.5-3.9%) of the 733 children well on day 6 relapsed by day 14. The most common causes of treatment failure were persistence of lower chest wall indrawing (LCI) at day 6 (3.8%; 95% CI: 2.6-5.2%), abnormally sleepy or difficult to wake (1.3%; 95% CI: 0.7-2.3%) and central cyanosis (1.3%; 95% CI: 0.7-2.3%). All children survived and only one adverse drug reaction occurred. Treatment failure was more frequent in young infants and those presenting with rapid respiratory rates. Clinical treatment failure and adverse event rates among children with severe pneumonia treated at home with oral amoxicillin did not substantially differ across geographic areas. Thus, home-based therapy of severe pneumonia can be applied to a wide variety of settings. © 2011 Blackwell Publishing Ltd.

  10. A Macromarketing View of Sustainable Development in Vietnam.

    PubMed

    Shultz, Clifford J; Peterson, Mark

    2017-12-30

    The authors apply methods and perspectives from several disciplines to explore the effects of Vietnam's economic development on various ecosystems, to offer a macromarketing view of sustainable development in Vietnam. An adapted version of the Sustainable Society Index was used to assess Vietnam's sustainability, how Vietnam's measures compare to other countries, with implications for future sustainable-development. Among several findings, Vietnam earns favorable sustainability ratings in absolute terms for water resources, healthy living, energy use, greenhouse gases, genuine savings, and employment. Ominously, Vietnam and some of its nearby neighbors post poor scores for energy savings and education. Going forward, energy savings, a well-educated population, and a coordinated marketing system will be required to ensure favorable sustainability measures. Drawing on macromarketing explorations of complex and interdependent systems, key factors are considered to redress unsustainable resource exploitation and degradation. Particular attention is given to the complexities and dilemmas inherent to waterways, such as the Mekong River Basin and Delta. The authors argue for multi-win goals, systemic understanding, stakeholder inclusion, and resolutions via cooperation and constructive engagement-including projects, products, services, and institutional leadership for best practices designed and administered to enhance sustainability and citizen/societal well-being.

  11. Seasonal characteristics and current sources of OCPs and PCBs and enantiomeric signatures of chiral OCPs in the atmosphere of Vietnam.

    PubMed

    Wang, Weitao; Wang, Yinghui; Zhang, Ruijie; Wang, Shaopeng; Wei, Chaoshuai; Chaemfa, Chakra; Li, Jun; Zhang, Gan; Yu, Kefu

    2016-01-15

    Passive air samplers (PAS) were deployed concurrently at 15 locations (nine urban sites and six rural sites) in Vietnam and exposed for approximately 6 weeks from June 26, 2012 to August 26, 2012 and from December 8, 2012 to February 8, 2013. The concentration, composition and enantiomeric signatures of the target compound and Air Mass Backward Trajectories of the 15 sampling sites are presented and discussed in this study. Relatively clean air mass from ocean and similar concentrations and composition of POPs between the south and north of Vietnam indicate that local emissions is most likely the major source of POPs in Vietnam. Technical DDT and technical HCH were widely used in Vietnam and corresponding quantitative data suggests the sporadic use. The preferential degradation of (+)-α-HCH was found in all sampling sites, which could be a regional characteristic of Vietnam. High trans-/cis-chlordane (TC/CC) ratios indicate the current use of technical chlordane for termite control. PCA estimated that main source of PCBs present in the atmosphere of Vietnam was uncontrolled discarded e-waste. Copyright © 2015 Elsevier B.V. All rights reserved.

  12. Morphological and molecular characterization of lymnaeid snails and their potential role in transmission of Fasciola spp. in Vietnam.

    PubMed

    Dung, Bui Thi; Doanh, Pham Ngoc; The, Dang Tat; Loan, Ho Thi; Losson, Bertrand; Caron, Yannick

    2013-12-01

    Freshwater snails of the family Lymnaeidae play an important role in the transmission of fascioliasis worldwide. In Vietnam, 2 common lymnaeid species, Lymnaea swinhoei and Lymnaea viridis, can be recognized on the basis of morphology, and a third species, Lymnaea sp., is known to exist. Recent studies have raised controversy about their role in transmission of Fasciola spp. because of confusion in identification of the snail hosts. The aim of this study is, therefore, to clarify the identities of lymnaeid snails in Vietnam by a combination of morphological and molecular approaches. The molecular analyses using the second internal transcribed spacer (ITS2) of the nuclear ribosomal DNA clearly showed that lymnaeids in Vietnam include 3 species, Austropeplea viridis (morphologically identified as L. viridis), Radix auricularia (morphologically identified as L. swinhoei) and Radix rubiginosa (morphologically identified as Lymnaea sp.). R. rubiginosa is a new record for Vietnam. Among them, only A. viridis was found to be infected with Fasciola spp. These results provide a new insight into lymnaeid snails in Vietnam. Identification of lymnaeid snails in Vietnam and their role in the liver fluke transmission should be further investigated.

  13. Characterization of rubella virus genotypes among pregnant women in northern Vietnam, 2011-2013.

    PubMed

    Van Le, Son; Le, Duc Hoang; Hoang, Huong Thi; Hoang, Ha; Nguyen, Nam Trung; Chu, Ha Hoang

    2015-02-01

    Rubella virus (RV) infection is an unresolved clinical complication that affects children in developing countries including Vietnam. RV infection during the first trimester of pregnancy causes severe birth defects known as congenital rubella syndrome. This study reports on the genomic characterization of RV strains circulating in northern Vietnam during 2011-2013. RV-IgM positive amniotic fluid specimens were collected from 38 women from northern Vietnam who presented with clinical rubella at the National Hospital of Obstetrics and Gynecology in Hanoi, Vietnam. The RV genes were determined by nested PCR with primers amplifying the 739-nucleotide coding region of the E1 gene. The sequences from the amplified DNA fragments were phylogenetically analyzed and compared to reference RV strains. Seventeen out of 38 samples are positive for RV detecting. All new RV isolates are clustered to genotype 2B. Eighteen amino acid mutations were found in the T and B cell epitopes. These results suggest that genotype 2B RV strains frequently circulate in northern Vietnam. These data describe the RV genotype in Vietnam with the aim of improving maternal and child health in this country. © 2014 Wiley Periodicals, Inc.

  14. Morphological and Molecular Characterization of Lymnaeid Snails and Their Potential Role in Transmission of Fasciola spp. in Vietnam

    PubMed Central

    Doanh, Pham Ngoc; The, Dang Tat; Loan, Ho Thi; Losson, Bertrand; Caron, Yannick

    2013-01-01

    Freshwater snails of the family Lymnaeidae play an important role in the transmission of fascioliasis worldwide. In Vietnam, 2 common lymnaeid species, Lymnaea swinhoei and Lymnaea viridis, can be recognized on the basis of morphology, and a third species, Lymnaea sp., is known to exist. Recent studies have raised controversy about their role in transmission of Fasciola spp. because of confusion in identification of the snail hosts. The aim of this study is, therefore, to clarify the identities of lymnaeid snails in Vietnam by a combination of morphological and molecular approaches. The molecular analyses using the second internal transcribed spacer (ITS2) of the nuclear ribosomal DNA clearly showed that lymnaeids in Vietnam include 3 species, Austropeplea viridis (morphologically identified as L. viridis), Radix auricularia (morphologically identified as L. swinhoei) and Radix rubiginosa (morphologically identified as Lymnaea sp.). R. rubiginosa is a new record for Vietnam. Among them, only A. viridis was found to be infected with Fasciola spp. These results provide a new insight into lymnaeid snails in Vietnam. Identification of lymnaeid snails in Vietnam and their role in the liver fluke transmission should be further investigated. PMID:24516270

  15. An Empirical Analysis of the Performance of Vietnamese Higher Education Institutions

    ERIC Educational Resources Information Center

    Tran, Carolyn-Dung T. T.; Villano, Renato A.

    2017-01-01

    This article provides an analysis of the academic performance of higher education institutions (HEIs) in Vietnam with 50 universities and 50 colleges in 2011/12. The two-stage semiparametric data envelopment analysis is used to estimate the efficiency of HEIs and investigate the effects of various factors on their performance. The findings reveal…

  16. Developing School Psychology in Vietnam

    ERIC Educational Resources Information Center

    Le, Phuong; Hagans, Kristi; Powers, Kristin; Hass, Michael

    2011-01-01

    Like China, Vietnam is a communist country with increasingly capitalist economic policies. A fundamental change occurred in these policies with the enactment of Vietnam's "doi moi" (renovation) policy in 1986 that called for a "free market with socialist orientations." However, this economic modernization has inadvertently…

  17. A Map Exercise for Teaching About the War in Vietnam.

    ERIC Educational Resources Information Center

    Heath, Douglas E.

    1981-01-01

    This paper describes a two-part exercise exploring Vietnam's ethnic and political geography as a way for college geography students to examine the lessons of Vietnam. Students analyze maps for geographic factors affecting nationalism and political changes between 1946-68. (AM)

  18. U.S.-Vietnam Economic and Trade Relations: Issues for the 111th Congress

    DTIC Science & Technology

    2010-05-03

    contributing factor is over 20 years of rapid economic growth in Vietnam, ushered in by a 1986 shift to a more market -oriented economic system. Bilateral...the United States officially recognize it as a market economy. There have also been problems with U.S. imports of specific products from Vietnam. In...111th Congress may also weigh in on clothing and fish imports from Vietnam, or its designation as a market or non- market economy. Finally, if

  19. The Army and the Strategic Military Legacy of Vietnam

    DTIC Science & Technology

    1990-06-01

    anxious to know how long U.S. troops will be there. It is only natural given the pre- vious interventions and the memories of involvement in the...hand" institutional memory , future Army leaders will increasingly have to rely on the Vietnam "lessons literature." Future Army leaders will not have the...or may not even resemble, the Vietnam experience. As the Vietnam War begins to pass out of the military’s personal institutional memory by way of

  20. The Vietnam Petroleum Industry: Positioned for Growth but Ripe for Regional Complications

    DTIC Science & Technology

    2013-10-30

    monopolistic character of PVN means the Vietnamese government is a major part of all aspects of the industry. Secondly, faced with increasing demand for...2013, JSTOR. 17 “U.S. EIA, “Vietnam” 20 18 Trong Vu and Simon Hall, “Oil Market Changes as Vietnam Build Another Refinery,” The Wall...Vietnam to Push Ahead with Offshore Exploration.” 23 Ibid. 24 Ibid. 25 Vu and Hall, “Oil Market Changes as Vietnam Build Another Refinery

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