Error Correction in Teaching Writing Skill:: From Teacher’s Point of View to Practice, A Study at A Pedagogical University in Vietnam

In English learning, writing skill is considered, by many people, the most difficult skill to be mas-tered. In fact, errors and mistakes in writing are unavoidable and a large amount of them has been de-tected with a variety of types. Previous researchers have also proved the significance of error analysis and correction in enhancing the writing skills of English learners, but the beliefs and applications of teachers in error correction methods still differ. Thus, the aim of this paper is to investigate these two factors in the teaching and learning environment of a university in Vietnam. The study is conducted in two phases: teacher interview and class observation in practice, with the participation of two Eng-lish teachers who are in charge of teaching writing skill to two classes of 21 and 28 students. The rec-orded results give emphasis to the need of error correction in writing classes, some commonly effec-tive activities utilized; furthermore, there is a remarkable outcome that teachers seldom have academ-ic basis on error correction but mainly depend on their own experience in teaching practice, and their approaching methods to correcting mistakes on students paper can be both direct and indirect. In ad-dition, some ideal activities for error correction, namely peer feedback, on-going writing quizzes, and error codes, are presente

Learning to be Researchers: A Study of Pedagogical Students in Hanoi, Vietnam

Doing research in colleges and universities is an essential activity since it may provide students a good basis to become professional researcher and teacher in the future. However, few students in Vietnam can recognize the importance of research activities or possess an adequate background of knowledge to participate in these activities, and additionally, the obligatory course of Research Methodology offered in many universities cannot bring enough understanding in doing research to students. This study, thus, aims at investigating the effects of Research Methodology courses in both of their good and bad sides) on students at a pedagogical university. The study also attempts to survey the attitude of those students toward the activity of doing research and the impact of the attitude on their process of learning to be researcher

Policies on Inclusive Education for Children with Disabilities in Vietnam

This article traces the history of inclusive education policy development, laws that have been promulgated, and the dissemination of policy and legal rights and responsibilities through conferences, seminars and university coursework in Vietnam since 1995 when the responsibility for educating children with disabilities shifted from the Ministry of Labor, Invalids and Social Affairs to the Ministry of Education and Training. Numerous standards of practice related to roles and responsibilities and recommendations for improvemtns in policy and practice are shared as well as lessons learned from external evaluation efforts that will be valuable for further development and refinement of poilicies to forward inclusive education in Vietnam

Influence of biofertilizer produced using drumstick (Moringa oleifera L.) unused parts on the growth performance of two leafy vegetables

The non-edible parts of Moringa oleifera, such as stems, branches or leaf petioles, have often been discarded while the leaves are consumed as a vegetable or are used to produce organic fertilizer. This study aimed to determine the optimal conditions for producing Moringa organic fertilizer (MOF) from previously unused parts and to compare these fertilizers with cow manure and bio-organic fertilizer. Seventy kilograms of the unused Moringa parts were blended with fifty kilograms of manure, 0.2 kilogram of Trichoderma-based product and two kilograms of superphosphate. The mixture was incubated at different intervals, including 5, 7 or 9 weeks. Next, the effects of MOF on the growth, yield, ascorbic acid content and Brix of lettuce and mustard spinach were also determined and compared with other organic fertilizers (cow manure and bio-organic fertilizer). Results of the study revealed that 25 tons per ha of MOF were significantly superior to those treated with cow manure and bio-organic fertilizer in the case of vegetable yields. Further, 7 weeks of MOF incubation was found suitable to produce an optimal yield during the various incubation period. These results suggested that the Moringa non-edible parts can make organic fertilizer and enhance growth, yield, and leafy vegetable production

The Distribution of Microplastics in Beach Sand in Tien Giang Province and Vung Tau City, Vietnam

Microplastics threaten the ecosystem because of undesirable properties such as non-biodegradability, easy-to-absorb persistant organic compounds, etc. They are found worldwide in marine, fresh water and beach sand environments. In this study, microplastics in beach sand samples from two sites in Tien Giang province and two sites in Vung Tau city were investigated. The results showed that the microplastics amount was 0 to 295 pieces/kg dry sand and they mainly distributed near estuarine areas. Microplastics were more prevalent at bathing sites than non-bathing sites. In Tien Giang fragments were the most dominant among the three types of shapes (fragments, fibers, granules) at 60.2%. In Vung Tau granules were most prevalent at 71.7%. The composition of the plastics was confirmed by Fourier-transform infrared spectroscopy. It was revealed that PE, PP and PS were the main types of plastics found in the sampling sites.

Interest rate pass-through estimates from error correction models ECM

This paper examines the degree of pass-through and adjustment speed of retail interest rates in response to changes in monetary policy rates in commercial banks of Viet Nam during the period 07/2004 to 06/2014. The results show that the degree of pass-through of retail interest rates is incomplete but high (0.7-0.93). The adjustment speed of money market rates & retail interest rates is relatively slow. It takes from 3 to 6 months for money market rates & retail interest rates to be adjusted to long-term equilibrium, except 1 month VNIBOR. 1 month VNIBOR is sensitive to changes of discount rate & refinancing rate in short-term, contrary to 3 month VNIBOR . The degree of pass-through from market rates to retail interest rates is fairly high in the long-term but low in the short-term. The degree of pass-through is different between various retail interest rates. Specifically, the degree of pass-through of deposit rates is higher than that of lending rates both in the short-term & long-term

The impact of capital structure choice on firm’s financial performance: An empirical analysis of delisted firms in Viet Nam

The purpose of this study is to examine the impact of capital structure choice on firm’s financial performance delisted companies on the stock market. Based on the data collected from 80 companies delisted from Vietnam stock markets (HNX and HOSE) in the period from 2012 to 2015, using quantitative research methods, we find a correlation between the capital structure and the financial performance of the firms. The study results have some implications for investors and managers in making decisions to optimize their financial performance

Preparation and characterization of magnesium hydroxyapatite coatings on 316L stainless steel

Magnesium hydroxyapatite coatings (MgHAp) were deposited on the surface of 316L stainless steel (316L SS) substrates by electrodeposition technique. Different concentrations of Mg2+ ion were incorporated into the apatite structure by adding Mg(NO3)2 into electrolyte solution containing 3×10-2 M Ca(NO3)2, 1.8×10-2 M NH4H2PO4 and   6×10-2 M NaNO3. With Mg2+ concentration 1×10-3 M, the obtained coatings have 0.2 wt% Mg2+. The influences of scanning potential ranges, scanning times to deposit MgHAp coatings were researched. The analytical results FTIR, SEM, X-ray, EDX, thickness and adhension strength showed that MgHAp coatings were single phase of HAp, fibrous shapes, thickness 8.1 µm and adhesion strength 7.20 MPa at the scanning potential ranges of 0÷-1.7 V/SCE and scanning times of 5 scans. Keywords. 316L SS, Electrodeposition, MgHAp

Estimating Water Content and Grain Size of Intertidal Flat Sediments Using Visible to Shortwave-Infrared Reflectance and Sentinel 2A Data: A Case Study of the Red River Delta, Vietnam

Sediment properties such as water content (WC) and grain size (GS) are essential to characterize the environmental conditions of tidal flats. This article aimed to develop appropriate models to estimate the WC and GS of surface sediments for an intertidal flat on the Red river delta (Vietnam) using Sentinel 2A (S2A) images. The spectral reflectance, WC, and GS of 96 sub-samples from 12 sediment samples collected on December 17, 2017 were measured to clarify their relationships. The WC was highly correlated with the reflectance ratio of two shortwave-infrared bands, R(2190)/R(1610) (R² = 0.93). The median GS (D₅₀) at 0%, 15%, and 20% of WC was significantly correlated with the reflectance ratio of the near-infrared band (842 nm) versus the visible-green band (560 nm) (R² > 0.78). Next, D₅₀ was estimated from a multivariate regression model using this band ratio, the visible-red band (665 nm), and WC. The accuracy of the models was verified by comparisons with WC and D₅₀ from 20 samples collected on March 12th 2019 (RMSE of both WC and D₅₀ 30%) in very fine sediments (silts), which is consistent with other intertidal flats with similar sediment types. This article was limited to fine sediment samples. Therefore, our next step is to incorporate coarse sediments into the models to provide more universal mapping of WC and sediment types