Physical studies

This study provides readers with an overview of Flipgrid, the Flipgrid implementation process, and the effectiveness of applying Flipgrid to develop speaking skills for Thai Nguyen gifted high school students. In this action research, the pre-test, post-test, and questionnaire were employed to collect data for analysis.

9p vipanly 28-10-2024 3 3   Download

Study on the actual situation of domestic water of 24 military units in the Northern region in 2022. Subjects and methods: A descriptive cross-sectional study with analysis and evaluation of seven basic physical, chemical and microbiological indicators on 113 samples of domestic water collected at 24 military units stationed in the Northern Region from July to October, 2022.

4p vipanly 28-10-2024 3 0   Download

This study was conducted. Moreover, it is shown that choosing the best Tx/Rx parameters is necessary to meet service quality requirements such as BER and transmission confidentiality. The provided findings provide insightful information about the practical considerations of deploying UWOC/ CDMA systems.

11p viengfa 28-10-2024 3 1   Download

Through the use of four tradional research methods including document synthesis, interviews, pedagogical testing, and stascal analysis with a sample of 12 male students, the study had synthesized documents, conducted interviews, and tested the reliability of the tests, selecting 10 physical fitness tests for the U12 male soccer team of the school with sufficient reliability (coefficient r > 0.8).

8p viling 11-10-2024 0 0   Download

The objective of this study was to investigate effect of the addition with different ratios Macadamia oil cake (MOC) on physical properties (color and texture), nutritional composition (moisture content, protein content, fat content, fiber and energy value) and sensory quality of cookies were investigated.

9p viling 11-10-2024 0 0   Download

In this study, we propose a NOMA communication model combined with linear array antennas for the purpose of enhancing physical layer security. We introduce a model of 4 nodes: transmitter node S, receiver node D1, receiver node D2, eavesdropping node E.

10p viling 11-10-2024 1 1   Download

This study evaluated the test-retest reliability of the question about trouble with the locomotive organs in the NMQ in Vietnamese physical therapists (VPTs). Materials and method: It was a cross-sectional study in 10 VPTs by a convenient sampling technique.

6p vifilm 11-10-2024 2 1   Download

Although macadamia oil cake (MOC) is a by-product of macadamia oil processing, this material still has high nutritional value, making it a promising ingredient for food products. This study aimed to investigate effects of the MOC supplementation at different ratios on physical properties, nutritional composition and sensory quality of bread.

11p vibecca 01-10-2024 3 2   Download

This study aims to provide updated results of the changing trend of accretion/erosion of the coastline from Cape Ca Mau to Kien Giang in 2021-2023. Specifically, the rate and area of erosion/accretion considered. Remote sensing and GIS tools are used.

13p vibecca 01-10-2024 2 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

This study applicates the multi–physical method in ensemble Kalman filter determining error of WRF models to forecast the track and intensity of storm Damrey in 2017. Thus, the multi– physical ensemble Kalman filter can forecast the track and intensity of storms affecting Vietnam.

15p viyoko 01-10-2024 1 0   Download

The study aimed to determine the prevalence of overweight/obesity and describe some risk factors among high schoolers of Le Quy Don in Hai An County, Hai Phong City in 2019. Studied subjects included 1381 high schoolers aged from 15 to 17 years old. Method was a cross-sectional study.

10p vibecca 01-10-2024 6 2   Download

In this study, perovskite BaTiO3 and SrTiO3 catalysts were prepared using the sol-gel method for oxidative coupling of methane (OCM). Characterization of catalysts was investigated by X-ray diffraction for crystal properties, physical N2 adsorption to determine specific surface area, and temperatureprogrammed techniques to examine the redox properties and acid–base strength.

6p vikwong 29-09-2024 1 1   Download

In this study, a mixed method was used to collect and analyze qualitative and quantitative data. A quantitative questionnaire was distributed to 522 managers and teachers and 30 managers and teachers were interviewed. Survey data were analyzed using SPSS software and compared with qualitative data to obtain more accurate information about the research problem.

11p viling 27-09-2024 3 2   Download

In this study, raw rice husk and bottom ash are used as fine aggregates, while fly ash is used as a binder material in the production of environmentally friendly unfired building bricks. The effect of raw rice husk content on the properties of green building bricks is investigated.

11p vifilm 24-09-2024 6 1   Download

This study aims to investigate the fouling mechanism, which mostly impacts the water permeability via empirical modeling. Normally, there are four different physical-based types of fouling: complete blocking, intermediate blocking, cake filtration and standard blocking or adsorption.

7p viyoko 24-09-2024 1 1   Download

The paper will study both traditional aspects and contemporary aspects; components of street culture, including the physical character, function and activities; and local people’s perception of the street, which are represented the entity of a place.

11p viyoko 24-09-2024 2 1   Download

Landslides are one of the most prevalent geological disasters in nature and rainfall infiltration is one of the key triggering factors of landslides. In this study, a laboratory flume model experiment was performed to investigate rainfall infiltration processes and failure mechanisms of sand slopes under artificial rainfall of 90 mm/h.

16p vifaye 20-09-2024 4 1   Download

Epidemiological studies have found that physically active person have lower prevalence of cardiovascular disease compared to sedentary. Was to estimate the indexes of aortic elasticity in the sportsperson with different types of exercise.

5p vifaye 20-09-2024 2 1   Download

Physical activity (PA) plays a vital role in both physical and mental development of adolescents. This study aims to determine adolescent physical activity status and several related factors and to preliminarily evaluate its effect on the development of adolescent height and weight.

8p vifaye 20-09-2024 2 1   Download