North vietnam

This study explores both teachers and students’ perceptions of the use of role play to enhance students' speaking skills in English for Restaurant and Hotel Operation Course at a college in the north of Vietnam.

7p viengfa 28-10-2024 3 1   Download

This study focuses on evaluating the impact of access to formal credit on the living standards of rural households in the North Central region of Vietnam. The propensity score matching (PSM) method was used on the Vietnam Household Living Standards Survey (VHLSS) 2020 database to examine this impact.

23p viling 11-10-2024 1 1   Download

The objectives of the present study are to (1) evaluate the NUE among popular grown rice landraces in the North of Vietnam; and (2) survey the genome of the rice landraces that show the lowest and highest NUE among those studied to supply information for constructing a genetic map.

14p vibecca 01-10-2024 1 1   Download

This study was therefore designed to evaluate the physical and physiochemical quality characteristics of inbred varieties with diverse origins and released in different periods in North Vietnam to determine the level of genetic divergence through cluster analysis.

10p vibecca 01-10-2024 1 1   Download

The objective of this study was to determine the effects of 2,4- Dichlorophenoxyacetic acid (2,4-D) combined with 6- Benzylaminopurine (BAP) and sucrose on the shoot and root regeneration of Paph. micranthum var. North Vietnam.

10p vibecca 01-10-2024 3 0   Download

A study was conducted to estimate the optimal levels of energy, protein, and fiber in the diets of New Zealand White (NZW) growing rabbits fed on fresh green forage available in North Vietnam. Mathematical modelling of nutrient-response curves was applied for the study.

9p vibecca 01-10-2024 3 2   Download

Increases in pig farm densities have caused great pressures on waste management systems and produce massive manure and urine quantities in Vietnam. This study aimed to identify the role and contributions of biogas digesters to better manage the sources of greenhouse gas (GHG) emissions from pig wastes for different types of pig farms in the north of Vietnam.

11p vibecca 01-10-2024 2 2   Download

This research was conducted to investigate the production efficiency of Ban pig production in northwest Vietnam between October 2016 and January 2017. Primary data obtained from 171 producers were analyzed by applying cost-benefit analysis and stochastic frontier production function.

10p vibecca 01-10-2024 3 2   Download

Outbreaks of the Southern rice black-streaked dwarf virus (SRBSDV) have caused significant losses in many rice-growing areas in Vietnam, especially in both North and Central Vietnam in recent years. To detect the virus, traditional reverse transcription polymerase chain reaction (RT-PCR) methodology and immunoassays are currently employed.

8p vibecca 01-10-2024 8 2   Download

Ha Giang is a mountainous border province in the North of Vietnam, with a strategic location in terms of politics, economy, national defense and security of our country, to be home to many ethnic minorities. In recent years, with the attention and investment of the Party and State, along with the drastic efforts of the Border Guard, police, functional forces and local authorities, the illegal human trafficking across the border has been prevented and achieved many results.

7p viyoko 01-10-2024 2 1   Download

The paper presents results on tree snails based on samples collected from various parts of Vietnam during the period of 2008–2022. As a result, 14 Amphidromus species were recorded, which increased the diversity of the genus in Vietnam to a total of 27 species. Four species were new country records including Amphidromus atricallosus perakensis, Amphidromus leucoxanthus, Amphidromus perversus natunensis, and Amphidromus areolabiatus. Almost all 14 species were found in the south, while only Amphidromus roseolabiatus was recorded in the north.

19p dianmotminh02 03-05-2024 2 1   Download

he study uses Best Track Data in the Western North Pacific region from 1961 to 2020. The wind speed fields of all TCs over the coastal zones are calculated using a semi-empirical model with a square grid of 0.05° resolution. The results show that the frequencies of TCs over the coastal zones decrease during El Niño years, whilethe TC intensities increase significantly compared to those in Neutral years. Meanwhile, TC intensities over all coastal zones during La Niña years, and some coastal zones during El Niño years, decrease significantly compared to those in Neutral years.

15p dianmotminh02 03-05-2024 1 1   Download

This study aimed to isolate and identify marine fungi from Bai Tu Long Bay and assess their antimicrobial potential. We successfully isolated twenty strains of marine-derived fungi. The crude extracts from these fungi were tested against pathogenic microorganisms. All twenty strains exhibit some degree of growth inhibition against the tested microorganisms.

9p dianmotminh02 03-05-2024 5 2   Download

Vietnam has many traditional copper casting craft villages from the North to the South, which resulting in large amounts of copper smelter slag containing Zn, Cu, Al, etc. In this study, zinc oxide and copper metal have been recovered from brass smelter slag (71.80 wt.% ZnO and 10.32 wt.% CuO) by a hydrometallurgical process.

8p vispyker 16-11-2022 5 1   Download

Dissertation of forestry - Summary "The role of social capital and local institutions in community forest management in the north central region of Vietnam" assess the role of social capital and local institutions in the community forest management of the North Central region in order to offer a scientific and practical basis for enhancing the effectiveness of community forest management in the region and throughout Vietnam.

28p bakerboys10 07-09-2022 11 3   Download

The Red river delta plain is the second largest delta in Vietnam and is located in the North of the country with an area of 14,860 km² and residing more than 22.5 million inhabitants. Groundwater is mainly exploited in Quaternary sedimentary aquifers with a total discharge of about 3 million m3 /day.

8p visherylsandber 04-07-2022 17 2   Download

Researching objectives: Describing some biological characteristics and distribution of Zingiber and Hedychium species from north-central Vietnam; determining the essential oil chemical composition; antimicrobial and antimosquito larvae activities of essential oils of some Zingiber and Hedychium species from north-central Vietnam.

27p beloveinhouse01 15-08-2021 28 5   Download

Objects of research: The research objective of the thesis is to determine the species composition, distribution and current status of scorpion species in the North Central region, Viet Nam to contribute and create a scientific basis for exploitation, use and development these species in an effective, safe and sustainable way.

25p extraenglish 24-05-2021 21 3   Download

Objectives of the study: To clarify the geochemical behavior of nickel in the weathering of ultramafic rocks and the formation of nickel laterite ores. To elucidate the formation process of nickel laterite ore types; Initial assessment on the prospect of nickel laterite ore in the North of Vietnam.

27p extraenglish 24-05-2021 15 4   Download

The research objective of the thesis is to evaluate the impact of external and internal environmental factors on the implementation of reverse logistics and economic results; provide research implications on reverse logistics implementation management to help retail businesses improve economic results.

29p kethamoi12 15-05-2021 32 2   Download