The economic impact of CPTPP on Vietnam’s fisheries exports to CPTPP region

The study evaluates the overall situation of Vietnam’s fisheries exports and uses the Global Simulation Analysis of Industry-Level Trade Policy model (the GSIM model) to predict the impact of the CPTPP agreement on Vietnam’s fisheries exports to the CPTPP members. It is forecasted that the CPTPP has positive effects on Vietnam’s fisheries exports. One of those is that it is promising for Vietnamese producers/exporters to access Mexico, which is a large market in the southern portion of North America. In addition, Vietnam has the advantage to continue increasing export earnings to the Japanese market after the CPTPP takes effect. By sub-sector, all sub-sectors have a positive impact on consumers/importers as well as producers/exporters. In terms of export value, all sub-sectors have increased export value, especially the Crustaceans, molluscs and other aquatic invertebrates, prepared or preserved (HS1605) export to Japan and the fish fillets and other fish meat (whether or not minced), fresh, chilled or frozen (HS0304) has significant export rise to Mexico. Nevertheless, the reduction of import tax revenues reduces the welfare of the fisheries sector

Common errors in writing journals of the English major students at Ho Chi Minh City Open University

Students’ writing problems are always a primary concern of instructors in writing classrooms, and to know the common errors which frequently occur on students’ writing papers is usually what the writing instructors have conducted in the classrooms. However, no research study has been conducted at the Faculty of Foreign languages at HCMC Open University to investigate into this aspect. The purpose of the current study is to investigate the common written errors on students’ writing journals and to see whether the extensive writing helps enhance students’ writing fluency. 115 first year English-major students participated in this study. They composed five writing journals every week during the course of 15 weeks. Each student composed 62 writing journals in total. The study found that four most common errors frequently occur in students’ writing journals are relating to tenses, collocations, spellings, and verb forms. Also, the current study confirms that the extensive writing practices effect the students’ writing fluency in terms of length of writing. The results of the study help the writing instructors at the local setting with the facts of their students’ writing problems in order to improve the writing practices in the writing classrooms. Particularly, the finding of this study confirms the effects of extensive writing so that the instructors and students could take this issue into their practices beyond the classrooms

Preschool STEM Activities and Associated Outcomes: A Scoping Review

This review highlights the need for further investigation into the benefits of STEM activities in preschool children’s learning, girls’ engagement and learning of children with disabilities in the STEM field. The review process involved accessing 19 relevant studies from Scopus, ERIC and Google Scholar databases in March 2023. Through the synthesis of information from these studies, seven STEM activities were identified as effective in enhancing preschool children’s learning: educational robots, educational games, argumentative interactions, inquiry-based learning and engineering design, drawing and telling about engineers, free play and pretend play, and group membership. Each of these activities contributes to different learning outcomes for children. Moreover, the review emphasizes the importance of role-playing activities ‘as if’ engineers and scientists, facilitated by teachers, in fostering girls’ motivation and engagement in the STEM field from an early age. Long-term scientific interventions at home have a significant positive impact on the science literacy skills of deaf children. The implications of this review are particularly relevant for early childhood educators, as it provides valuable insights into the use of STEM activities to enhance children’s learning outcomes

Robust Adaptive Control of 3D Overhead Crane System

In this chapter an adaptive anti-sway controller for uncertain overhead cranes is proposed. The system model including the system uncertainties and disturbances is introduced firstly. Next, the adaptive controller which can guarantee tracking the desired position of the trolley as well as the anti-sway of the load cable is established. In this chapter, the system is proven to be input-to-state stable (ISS) which is supported by Lyapunov technique. The proposed algorithm is verified by using Matlab/Simulink simulation tool. The simulation results shown that the presented controller gives the good performances (i.e., fast transient response, position tracking, and low swing angle) when there exist system parameters variation as well as input disturbances

Theranostic Gold Nanoshells: from Synthesis to Imaging and Photothermal Therapy Applications

Gold nanoshells (GNSs) were grown on monodispersed aminoprotpyltriethoxysilane (APTES) functionalized of silica nanoparticles (NPs) cores with varying sizes ranging from 40-180 nm synthesized by Stober route. Gold shells were deposited onto the surface of silica NPs by tetrakis(hydroxymethyl) phosphonium chloride (THPC) and electroless gold plating method. The coverage of the gold nanoshells on the surfaces of the silica NPs was evaluated using UV-VIS/NIR spectrospcopy and transmission electron microscopy (TEM). The plasmon resonance wavelengths of these gold nanoshells were tunable from visible to near infrared region. The GNSs were also bioconjugated with anti-HER2 monoclonal antibody for diagnostic breast cancer cells using dark field microscope technique. These GNS NPs play a role as nanoheaters transforming light to heat. With the present of these GNS NPs at volume density of $3.6\times 10^{10}$ NPs.cm$^3$ in chicken tissue samples, illuminated by 808 nm laser at the power density of 62~W.cm$^2$ the temperature of tissue sample reachs 110\rc{ }C after 20 minutes illumination

New records and morphological assessments of long-nosed fruit bats (chiroptera: pteropodidae: Macroglossus spp.) from Vietnam

Long-nosed fruit bat is a common name of the genus Macroglossus which comprises two species: Dagger-toothed long-nosed fruit bat (M. minimus) and Greater long-nosed fruit bat (M. sobrinus). These two species were rarely recorded from Vietnam or neighboring countries. Within Vietnam, M. minimus has been recorded only from two localities in southern Vietnam while M. sobrinus was known from all northern, central and southern regions of the country. Morphological features of these species in Vietnam were poorly documented in previous publications. With results from a rapid examination of all specimens and recently captured individuals, we here confirm that M. sobrinus is distinctively larger than M. minimus in all external and craniodental measurements. Two species are also distinguishable by their nostril shapes and mandible symphyses. This paper provides new distributional records of both M. sobrinus and M. minimus from Vietnam with remarks on their ecology and habitats.

Financial depth and economic growth: Empirical evidence from ASEAN+3 countries

Nexus between financial depth and economic growth has been studied for long time and still attracts great attention from policymakers. This research examines the relationship among ASEAN+3 countries from 2000 to 2014 based on Cobb-Douglas theoretical framework. The results show that fi-nancial depths measured by domestic credit to private sector, M3 and stock market capitalisation all have significant effects on economic growth. The paper also gives policy recommendations to promote financial development for purposes of long-term economic growth in ASEAN+3 countries

Effect of Polypyrrole on the Electrical, Dielectric and Mechanical Properties of Waterborne Epoxy Coatings

In this context, conducting composite based on waterborne epoxy system and polypyrrole (PPy) was investigated. The polypyrrole was synthesized by chemical oxidation polymerization. Its morphology and chemical structure were confirmed by using field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FTIR). Then, PPy was well-dispersed in the epoxy coating and had a good compatibility with the matrix. The effects of PPy on dielectric, electrical and mechanical properties of epoxy/PPy composites was examined. The dielectric constant and electrical conductivity of the coatings increased with addition of PPy fillers. Over to 15 wt. % of PPy loading, the volume resistivity of samples slightly decreased from 6.7 × 1010 to 1.5 × 1010 Ω cm. In contrast, the presence of PPy diminished both impact and abrasion resistance of the epoxy/PPy composites, down to 160 kg cm and 10.2 L/mil, respectively, but they stayed acceptable for the coatings. The results reveal that the epoxy containing polypyrrole is suitable for various electrical and dielectric applications

HIGH PROTECTION PERFORMANCE OF COATING SYSTEMS BASED ON ZINC RICH PRIMER AND FLUOROPOLYMER COATING

Coating systems based on zinc rich primer and fluoropolymer top coat were exposed for 8 years at different atmospheric stations in Vietnam: Hanoi, Ha Long and Nha Trang. For comparison the coating system with zinc rich primer and polyurethane topcoat was also tested. The degradations of coating systems were evaluated by gloss measurement and electrochemical impedance spectroscopy. The obtained results show that coating systems with zinc rich primer and top coatings based on fluoropolymer  and polyurethane topcoats show very high weather resistance and corrosion protection performance, but the systems with fluoropolymer are better than coating system with polyurethane topcoat