DELTA EVOLUTION MODEL INFERRED FROM THE HOLOCENE MEKONG DELTA, SOUTHERN VIETNAM

2003 ◽  
pp. 175-188 ◽  
Author(s):  
SUSUMU TANABE ◽  
THI KIM OANH TA ◽  
VAN LAP NGUYEN ◽  
MASAAKI TATEISHI ◽  
IWAO KOBAYASHI ◽  
...  
Keyword(s):  
Mekong Delta ◽  
Evolution Model ◽  
The Holocene ◽  
Delta Evolution ◽  
Southern Vietnam

Suspended sediment dynamics during the inter-monsoon season in the subaqueous Mekong Delta and adjacent shelf, southern Vietnam

2014 ◽  
Vol 79 ◽  
pp. 509-519 ◽  
Author(s):  
Daniel Unverricht ◽  
Thanh Cong Nguyen ◽  
Christoph Heinrich ◽  
Witold Szczuciński ◽  
Niko Lahajnar ◽  
...  
Keyword(s):  
Suspended Sediment ◽  
Monsoon Season ◽  
Mekong Delta ◽  
Sediment Dynamics ◽  
Southern Vietnam

Tonlesapia amnica, a new species of dragonet (Teleostei: Callionymidae) from the Mekong delta HEOK HEE NG (Singapore) & WALTER J. RAINBOTH (USA)

Zootaxa ◽  
2011 ◽  
Vol 3052 (1) ◽  
pp. 62 ◽  
Author(s):  
HEOK HEE NG ◽  
WALTER J. RAINBOTH
Keyword(s):  
New Species ◽  
Mekong Delta ◽  
Mekong River ◽  
Ventral Margin ◽  
Caudal Peduncle ◽  
Southern Vietnam ◽  
Dorsal Fin ◽  
Infraorbital Canal ◽  
Fin Rays ◽  
A New Species

Tonlesapia amnica, a new species of dragonet lacking a first dorsal fin, is described from the Mekong River delta in southern Vietnam. It can be distinguished from its sole congener, T. tsukawakii, in having the infraorbital canal extending beyond (vs. not reaching) ventral margin of orbit, a more slender body (7.2–13.5% SL vs. 14.3–15.0) and caudal peduncle (4.4–5.2% SL vs. 5.1–6.3), a smaller eye (6.5–8.3% SL vs. 8.7–9.2) and more dorsal-fin rays (9–10 vs. 8).

Commodified Sexuality and Mother-Daughter Power Dynamics in the Mekong Delta

2012 ◽  
Vol 7 (1) ◽  
pp. 149-180 ◽  
Author(s):  
Nicolas Lainez
Keyword(s):  
Emotional Labor ◽  
Mekong Delta ◽  
Transactional Sex ◽  
Power Dynamics ◽  
Southern Vietnam ◽  
The Family ◽  
Mother Daughter Relationship

This essay explores how the family commodifies the sexuality and emotional labor of the daughter for the interests of the family. The case study presented above illustrates the ways in which a commodified sexual economy occurs in the context of an indebted and economically vulnerable household in An Giang Province (Mekong Delta, southern Vietnam). In this family, “transactional sex” is one of the resources employed to ameliorate the debt incurred. The study shows the ways in which the mother provides, initiates, and maintains the conditions for the sexual commodification of her daughter through the power situated within the mother-daughter relationship and the narrative of gratitude and duty.

scholarly journals Epidemiological and etiological aspects of enterovirus infection in Russia and Vietnam

2021 ◽  
Vol 11 (5) ◽  
pp. 905-916
Author(s):  
N. I. Romanenkova ◽  
L. N. Golitsyna ◽  
T. T. T. Nguyen ◽  
N. V. Ponomareva ◽  
A. V. Leonov ◽  
...  
Keyword(s):  
Mekong Delta ◽  
Incidence Rates ◽  
Enterovirus Infection ◽  
Monophyletic Cluster ◽  
Epidemic Process ◽  
Southern Vietnam ◽  
Health Authorities ◽  
South Vietnam ◽  
Public Health Authorities ◽  
High Level

The epidemic situation and etiological factors of enterovirus infection in Russia and Vietnam were analysed and compared. The identified strains of enteroviruses of 47 types, which circulated in Russia in 2018–2019, belonged to different species: Enterovirus species A (CV-A2, CV-A4, CV-A6, CV-A8, CV-A10, CV-A16, EV-A71), as well as Enterovirus species B and Enterovirus species C. The strains isolated from 87 children from southern Vietnam hospitalised in 2018–2019 into infectious hospitals while having enterovirus infection with exanthema were also studied. All identified strains were represented by Enterovirus species A: EV-A71 — 59 strains, CV-A10 — 20 strains, CV-A16 — 5 strains, CV-A6 — two strains and CV-A2 — one strain. Out of 59 viruses EV-A71, 53 strains belonged to genotype C4 and 6 strains belonged to genotype B5. The sequences of EV-A71 strains of genotype C4 from South Vietnam formed a monophyletic cluster with the sequences of EV-A71 viruses which circulated during 2016–2018 in different provinces of China, and they were very close to EV-A71 strains of the same genotype from the Yunnan Province. These strains were genetically different from Russian viruses and Vietnamese viruses identified in the years 2003–2005 and 2011– 2012. Most of the cases of enterovirus infection from southern Vietnam (78%) caused by EV-A71 virus of genotype C4 were reported in three provinces located in southern Vietnam in the Mekong Delta. The epidemic process and the etiology of enterovirus infection in Russia and Vietnam have common features. At the same time, the epidemic situation in these countries is not the same. The incidence of enterovirus infection is influenced by geographic, climatic, economic and demographic factors that differ in two countries. In the majority of territories of Russia, the climate is temperate or cold, seasonal rises in the incidence rates of enterovirus infection usually occur in the summer, when people go on vacation, spend a lot of time outdoors and swim in open reservoirs. In Vietnam, a constant high-level temperature, a high population density and a large proportion of children determine the higher incidence of enterovirus infection, especially in the southern provinces of Vietnam, compared to Russia. The fact that more than 20% of the Vietnamese population lives in the Mekong Delta, which is the largest river in Indochina, has a significant impact on the epidemic process of enterovirus infection in South Vietnam. The Mekong River which flows through China, Laos, Thailand, Cambodia and Vietnam, and carries huge streams of water, including rainstorm waters and sewages, from all of these countries into the southern provinces of Vietnam, which have the highest incidence rates of enterovirus infection in the country. The results of the research underline the importance of active epidemiological and virological surveillance of enterovirus infection, which plays the key role in informing the public health authorities about the changes in the epidemic situation in order to take appropriate measures and develop the prevention strategies. The goal of anti-epidemic and preventive measures is to reduce the incidence of enterovirus infection and the economic burden of this infection for Russia and Vietnam.

Hydraulic conductivity behavior of soilcrete specimens created from dredging sand, cement, and bentonite

2021 ◽  
Author(s):  
Hoang-Hung Tran-Nguyen ◽  
Bich Thi Luong ◽  
Phong Duy Nguyen ◽  
Khanh Duy Tuan Nguyen
Keyword(s):  
Hydraulic Conductivity ◽  
Mekong Delta ◽  
Research Data ◽  
Low Permeability ◽  
High Permeability ◽  
Seepage Flows ◽  
Southern Vietnam ◽  
Hydraulic Gradients ◽  
Conductivity Behavior

Abstract Dredging sand is an inexpensive material utilized to rise elevations of highway embankments and earth levee bodies in the Southern Vietnam. However, high permeability of the dredging sand can cause failures due to seepage flows during annual flood seasons. The dredging sand mixing cement with or without bentonite is expected to be suitable low permeability as an impermeable material. However, hydraulic conductivity of soilcrete and bentonite specimens created from dredging sand taken in the Mekong delta has limit research data. This study aims at better understanding the hydraulic conductivity of dredging sand samples taken in Dong Thap province mixed with cement and bentonite. The effects of the hydraulic conductivity of soilcrete and bentonite soilcrete specimens on time, cement contents, bentonite contents, cement types, and hydraulic gradients were investigated. The tests followed the ASTM D5084 standard using the both falling head-constant tailwater and falling head-rising tailwater methods. The results indicate that: (1) the hydraulic conductivity of the soilcrete and bentonite specimens decreased with increasing in testing duration and cement contents; (2) the hydraulic conductivity of the soilcrete specimens was lower 104 to 105 times than that of the compacted sand; (3) the hydraulic conductivity of the bentonite soilcrete specimens was lower 10 times than those of the soilcrete specimens; (5) the PCS cement can induce long-term reduction of soilcrete hydraulic; (6) effect of hydraulic gradients on soilcrete hydraulic conductivity was ignorable; (6) the soilcrete hydraulic conductivity varies from 10− 9 to 10− 10 m/s.

Holocene delta evolution and sediment discharge of the Mekong River, southern Vietnam

2002 ◽  
Vol 21 (16-17) ◽  
pp. 1807-1819 ◽  
Author(s):  
T TA ◽  
V NGUYEN ◽  
M TATEISHI ◽  
I KOBAYASHI ◽  
S TANABE ◽  
...  
Keyword(s):  
Mekong River ◽  
Sediment Discharge ◽  
Delta Evolution ◽  
Southern Vietnam
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