291 research outputs found
SOLUTIONS TO IMPROVE THE QUALITY OF BACHELOR OF PHYSICAL EDUCATION TRAINING PROGRAM IN HO CHI MINH CITY UNIVERSITY OF PEDAGOGY, VIETNAM
Training management is an important function of universities, giving recommendations to the principal when developing the training development strategies; organizing training courses, recruitment; examination and assuring the quality according to the regulations of the Ministry of Education and Training. This can be considered as a "backbone" in education, which is the basis of school development. In particular, doing research and proposing solutions to improve the quality of the training programs in the school regularly are necessary. This article introduces some achievements and limitations in the Bachelor of physical education training program in Ho Chi Minh City University of Pedagogy. Consequently, some effective solutions to improve the training program are also proposed. Article visualizations
SOLUTIONS TO ENHANCE THE IMPLEMENTATION OF SPORTS CLUB ACTIVITIES IN HOCHIMINH CITY HIGH SCHOOLS, VIETNAM
The purpose of this study was to develop solutions for enhancing the implementation of sports club activities in Hochiminh City high schools in Vietnam. 40 experts in coaching and teaching in sports clubs participate to find out solutions for enhancing the implementation of sports club activities. Through the practical basis and assurance conditions, as well as meeting the requirements when developing solutions, interviewing experts and the reliability, results have been developed 10 solutions, they were (1) develop a specific and suitable plan, (2) implement policies to increase funding, (3) strengthen the inspection, (4) organize and diversify sports, (5) strengthening sports activities in clubs, (6) develop appropriate supplementary exercises, (7) enhance the quantity/ quality of human resources, (8) ensure facilities, equipment, and training tools, (9) awareness the importance of sports club, and (10) build the fitness assessment and classification. In conclusion, 10 solutions were set up which have contributed to improving the implementation of sports club activities in Hochiminh City high schools, Vietnam; however, they need to be applied in practice to get better evaluation results. Article visualizations
DISTRIBUTION OF USEFUL AND HARMFUL MICROORGANISMS IN SHRIMP AQUACULTURE WATER IN TIEN HAI COASTAL OF THAI BINH PROVINCE
Joint Research on Environmental Science and Technology for the Eart
Soybean yield, seed quality and thresh efficiency by mechanisation at different harvesting stages and postharvest ripening
This study determined the most appropriate and earliest soybean harvesting stage and the number of days of postharvest ripening with minimal effects on seed losses and quality when mechanical harvest and threshing were applied. Harvesting stages at four physiological maturities (60, 70, 80, and 90%) and various days of postharvest ripening treatment (1, 2, and 3 days) were applied for two soybean varieties DT12 and DT26. Harvesting at physiological maturity of 90% recorded the highest seed-shattering loss but the least seed damage (<5%) and highest seed quality, followed by a physiological maturity of 80%. There were no significant differences in seed yields between harvesting stages of 80 and 90% maturity. Harvesting soybeans at a physiological maturity of 60 and 70% resulted in no seed losses but a significant reduction in seed quality. To avoid adverse weather, an early harvest stage at a physiological maturity of 80% is suggested. Although postharvest ripening of soybeans for early harvest caused seed shattering losses (2-5%), it was necessary to ensure seed quality. These results indicate effective and practical methods for farmers at small households to use in early mechanical harvesting of soybeans
Context-aware Knowledge-based Systems: A Literature Review
Context awareness systems, a subcategory of intelligent systems, are concerned with suggesting relevant products/services to users' situations as smart services. One key element for improving smart services’ quality is to organize and manipulate contextual data in an appropriate manner to facilitate knowledge generation from these data. In this light, a knowledge-based approach, can be used as a key component in context-aware systems. Context awareness and knowledge-based systems, in fact, have been gaining prominence in their respective domains for decades. However, few studies have focused on how to reconcile the two fields to maximize the benefits of each field. For this reason, the objective of this paper is to present a literature review of how context-aware systems, with a focus on the knowledge-based approach, have recently been conceptualized to promote further research in this area. In the end, the implications and current challenges of the study will be discussed
Retrieval of Aerosol Optical Depth Using Satellite Data Associated with Ground-based Observations over Urban and Rural Areas
Optičku je dubinu aerosola (AOD) moguće točno izračunati na temelju uzastopnih mjerenja izravnog i difuznog Sunčeva zračenja na tlu. Međutim, prostorna pokrivenost i frekvencija lokacije uzrokuju određena ograničenja. Stoga su satelitske snimke ispravan alat za dobivanje proizvoda optičke dubine aerosola s više prostornih informacija i obrazaca raspodjele aerosola. Daljinskim istraživanjima aerosola možemo bolje razumjeti najbolji pristup računanju optičke dubine aerosola u urbanim i ruralnim područjima i mogu se uočiti razlike zbog svojstava površinske reflektivnosti. Ovaj se članak bavi konceptima smanjenja kontrasta i pristupima tamnih meta koji se ispituju snimkama Landsata i opažanjima Sunčevog fotometra za povezivanje raspodjele optičke dubine aerosola iznad grada Taipeija u Tajvanu. Za područja sa svijetlim površinama kao što su gradovi navedeni se koncepti primjenjuju metodom koeficijenta disperzije zajedno sa Sunčevim fotometrom kako bi se u velikoj mjeri smanjile pogreške. Za razliku od toga, algoritam tamne mete s odnosom površinske refleksije između plavih (0,49 μm), crvenih (0,66 μm) i infracrvenih (2,1 μm) spektralnih pojaseva prikladan je za vlažno tlo i područja s vegetacijom. Računanje prostorne raspodjele optičke dubine aerosola uspoređuje se s proizvodima MODIS AOD-a i AERONET-a kako bi se provjerila točnost rezultata. RMSE je bio u rasponu od 0,2 do 0,4 i oko 50% podataka bilo je unutar granica očekivane pogreške (EE=± (0,05+0,15 AODsunphometer).Aerosol optical depth (AOD) can be retrieved accurately with sequential ground-based measurements of direct and diffuse solar radiance. However, spatial coverage and location frequency cause certain limitations. Hence, satellite image data are a proper tool for obtaining aerosol optical depth products with more spatial information and patterns of aerosol distribution. Currently, aerosol remote sensing may enhance our understanding of the optimal approach to AOD retrieval over urban and rural areas, and how it differs due to the characteristics of surface reflectivity. The article deals with the concepts of contrast reduction, and dark target approaches are examined using Landsat imaging and the observation of a sun photometer for integrating aerosol optical depth distribution over the city of Taipei in Taiwan. For areas with bright surfaces, such as urban areas, the above concepts were applied using the dispersion coefficient method with a sun photometer, in order to reduce errors considerably in the product. In contrast, a dark target algorithm with a relationship of surface reflectance between the blue (0.49 μm), red (0.66 μm), and infrared (2.1 μm) spectral bands is suitable for moist soils and vegetation areas. The retrieval of AOD spatial distribution is compared with MODIS AOD products and AERONET to verify the accuracy of the results. The RMSE ranged from 0.2 to 0.4, and about 50% of the data were within expected error margins (EE=± (0.05+0.15 AODsunphotometer)
Factors affecting the responsibility accounting in Vietnamese firms: A case study for livestock food processing enterprises
Responsibility accounting provides not only financial and non-financial information for decentralized managers but also it gives suitable responsibility for other parts or other responsibility centers to understand whether or not they work properly. Completing responsibility accounting in enterprises depends on many internal and external factors. This research uses quantitative research method to analyze the factors affecting the responsibility accounting in livestock food processing enter-prises (LFPE) in Binh Dinh province, Vietnam. The results indicate that various factors affect the responsibility accounting including managerial decentralization, division the organization into responsibility centers, income and cost allocation, estimations, reality and estimation evaluation, reporting, rewarding, etc. Based on those results we offer some intuitive recommendations for firms to increase financial performance
LIGNANS FROM LEAVES OF AMESIODENDRON CHINENSE AND THEIR CYTOTOXIC ACTIVITY
ABSTRACTFrom leaves of Amesiodendron chinense (Mer.) Hu four lignans (+)-aptosimon (1), (+)-isolariciresinol (2), (-)-cleomiscosin A (3), and (-)-cleomiscosin C (3) were isolated. Their structures were determined by spectroscopic analysis including MS, 1D and 2D NMR as well as by comparison with reported data in literature. All compounds were evaluated for cytotoxic activities against five human cancer cell lines, KB, SK-LU-1, MCF-7, HepG-2, and SW-480. They showed weak cytotoxic activity on five tested human cancer cell lines with IC50 values ranging from 32.61 to 95.18 µg/ml
ISOLATION AND SELECTION OF LIPASE-PRODUCING BACTERIA IN VIETNAM
Joint Research on Environmental Science and Technology for the Eart
Conservation, Exploitation And Use Of The Ginger Family (Zingiberaceae) At The National Genebank In Vietnam
There are 741 accessions in the ginger family such as turmeric, ginger, galangal, and pinecone ginger collections conserved at Plant Resources Center, Vietnam. These collections were highly diverse in the number of accessions and species composition. The results of the Zingiberaceae exploitation shown the G10 ginger variety plants reached around 63.7 - 77.5 cm in height, 400 - 500 g/clumps in fresh weight, 25 - 27 tonnes/ha in fresh yield. The G10 ginger variety contained 4.37% oil, 1.2 mg/kg Zn and 9.31 mg/100g Vitamin C. This G10 ginger variety resistance to leaf spot and green aphids. In addition, the N8 turmeric variety plants reached 130 - 170 cm in height; 880 - 1000 g/clumps in fresh weight and 35 tonnes/ha in yield, curcumin content 6.2 - 6.6%, essential oil contents 2.5 - 2.7%. This turmeric resistance to heat stress, leaf spot, and green aphids. The conserved root and tuber crops at PRC are very diverse both of the amount of sample in collections and species. Conservation and evaluation on root and tuber crops reviewed the promising G10 ginger and N8 turmeric varieties had high yield, good oil content to release for production
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