CORDICのハードウェア構成及び応用に関する研究

電気通信大学201

USING METAPHOR IN EFL CLASSROOM TO ENHANCE WRITING SKILLS: A CASE STUDY

This study is aimed to investigate the effects of using metaphor in the development of writing skill as well as find out the challenges learners may face, then propose the suitable suggestions to boost metaphoric awareness and competence in learning English. The writer conducted two measuring instruments: pro- and pre-test for two groups (control and experimental) to examine the effectiveness of using metaphor in writing; two questionnaires to measure the attitude of the students towards using metaphor in writing that was conducted basing on a 5 point Likert-scale. The studys participants were 40 English major students at Hanoi Law University. The findings from the study showed that learners with the instruction from teachers on metaphor in songs when writing tended to get better scores than the other ones. However, they also showed that although it is important to learn metaphor, a lot of challenges still maintain. The paper hopefully helps learners have new insight into aspects of figurative language studies and pedagogical applications

CORDICのハードウェア構成及び応用に関する研究

電気通信大学201

STRUCTURAL METAPHOR OF LOVE IN ENGLISH SONGS IN THE LATE 20TH CENTURY FROM STYLISTIC AND COGNITIVE PERSPECTIVES

Metaphor is a powerful linguistic device for musicians to write love songs. Through love songs, metaphor is understood and studied more interestingly and effectively. The paper identified distinctive linguistic features of metaphors as well as interpreted the metaphorical images of love in the songs. The data for analysis are the samples randomly taken from English love songs in the late 20th century. There are 68 songs used with 80 verses included in the corpus for analysis. All the collected data were qualitatively and quantitatively processed. In this paper, the metaphorical images in the songs were classified into three different kinds, namely structural metaphors, ontological metaphor, and orientational metaphors, of which the number of structural one ranks the first. The writer analyzed 46 structural metaphors to find out conceptual meaning transference from the vehicles to the tenors from cognitive perspectives and the rhetorical value distributed to songs from stylistic perspectives. Finally, the implication for learning, teaching and translating metaphor was presented

Mediating Effect of Social Commerce Continuance Use Intention on the Relationship Between Perceived Values and Brand Loyalty

The purpose of this paper is to examine the mediating effect of social commerce continuance use intention on the relationship between perceived values and brand loyalty in the social commerce context. The data was collected from 176 members of the Apple Watch Social Commerce site in Vietnam via an online questionnaire. Applying the structural equation modelling method, we found that social commerce continuance use intention has mediating effects on the relationship between perceived values and brand loyalty. Keywords: Perceived values, continuance use intention, brand loyalty, social commerce, Vietnam DOI: 10.7176/EJBM/12-11-07 Publication date: April 30th 202

Do Technical Barriers to Trade Measures Affect Vietnam’s Tea Exports? Evidence from the Gravity Model

This paper explores how technical barriers to trade (TBT) affect Vietnam’s tea exports to 55 importing countries from 2001 to 2019. We use the gravity model with different estimation methods: ordinary least square (OLS), fixed-effect (FE), and random effect (RE) to estimate the impact of TBT on Vietnam’s tea exports. The results show that although GDP, population, distance, tariff, and participation in World Trade Organization (WTO) are crucial factors, the TBT measures imposed by these importing countries have significantly negative impacts on Vietnam’s tea exports. Our findings reveal that while a 1% increase in the cumulative TBT measures imposed by developing countries decreases Vietnam's tea export by 0.341%, the figure for developed countries is 1.308%

EFFECT OF SPENT MUSHROOM SUBSTRATE ON THE GROWTH AND YIELD OF THREE CULTIVARS OF MUSKMELONS (Cucumis melo)

Muskmelons are currently grown in several areas of Vietnam for domestic and international consumer markets. The fruit grows well in greenhouses in soil or soilless substrate such as coconut peat. Researchers in Vietnam are investigating the growth of muskmelons in a range of organic by-products. In this study, spent mushroom substrate was recycled for use as an organic substrate and to evaluate the growth, quality, and yield of three muskmelon varieties including RZ F1, PN 128, and TL3 in greenhouses over three months. The substrate was incubated for one month before use and contained 45% spent mushroom substrate, 30% manure, 7.7% rice husks, 1.5% phosphorus, 0.2% commercial Trichoderma (Tribac), 0.1% rice bran, 15% sand, and 0.5% micronutrients and water. Following incubation, the substrate had optimal pH for the growth of muskmelon and the concentration of nutrients and beneficial microorganisms had increased significantly. The growth of RZ F1 and TL3 cultivars was significantly better than PN 128 in terms of growth, fruit quality, and yield. Specifically, RZ F1 and TL3 species took 78 days and 75 days to complete their life cycle produced 1.76 kg and 1.62 kg of fruit, had a pericarp thickness of 4.0 cm, and possessed 14.20o Brix and 14.88o Brix of soluble solid content, respectively. These findings suggest that agricultural by-products, such as spent mushroom substrate, could be a valuable resource for the culture of muskmelons in Vietnam

Essais empiriques sur trois dimensions du capital humain au Vietnam durant les années 2000

Cette thèse comprend quatre chapitres. Le chapitre 1 présente les aspects généraux socio-économiques du Vietnam et les banques de données Vietnam Household Living Standard Survey (VHLSS) de 2002 à 2010 que les trois autres chapitres utilisent pour leurs analyses descriptives et empiriques. Le chapitre 2 emprunte le concept de modèles multiniveaux pour ses estimations dans l'explication des disparités ethniques du Vietnam en 2002, avec une comparaison des résultats avec 2010. Le chapitre 3 aborde les facteurs de la participation à l'école et au travail des enfants vietnamiens de 11 à 18 ans en 2002 et 2010, avec la formulation de modèles bivariés. Le dernier chapitre, basé sur le modèle de Mincer (1974), est réservé au sujet du rendement de l'éducation des salariés vietnamiens de 16 à 65 ans entre 2002 et 2010.\ud ______________________________________________________________________________ \ud MOTS-CLÉS DE L’AUTEUR : Vietnam, VHLSS, modèles multiniveaux, disparités ethniques, participation à l'école et au travail, modèles bivariés, rendement de l'éducation, Mincer

Osteogenesis activity of fractions extracted from Clinacanthus nutans (Burm. F.) Lindau

Osteogenesis activity of fractions extracted from Clinacanthus nutans was evaluated on an in vitro model using osteoblast MC3T3-E1 cells. The results showed that all fractions, including ethanol (EtOH), n-hexane, ethyl acetate (EtOAc) and butanol (BuOH) were not significantly toxic to the osteoblast cells at the test concentrations of 5, 10, 25, and 50 µg/mL. The EtOH and EtOAc fractions exhibited the highest osteogenesis activity in terms of enhancement of alkaline phosphatase (ALP) and mineralization activity of MC3T3-E1 cells, especially the EtOAc fraction which increased ALP activity up to 30% and mineralization activity up to 100%. Thus, the EtOAc fraction shows osteogenesis activity through stimulating activites of the two markers for bone generation including ALP and mineralization in osteoblast cells. The fraction is now under extensive investigation to isolate and fully understand the modes of action of the active compounds.