THE SPECIES COMPOSITION IN CATCHES OF GILL-NET IN THE COASTAL AND INSHORE AREA OF BENTRE PROVINCE, VIETNAM

and analyzed. The result of study shows that 105 species belonging to 77 genera and 42 orders have been encountered. In which, demersal fish with 45 species (42.9%), 21 species of pelagic fish (20.0%); 18 species of reef-associated fish (17.1%); shrimps with 14 species (13.3%); crabs with 4 species (3.8%); 2 species of cephalopods (1.9%) and 1 species of seahorse crab (1.0%). In terms of catch composition, the croaker (Sciaenidae), the lizardfishs (Synodontidae) and Anchovies (Engraulidae) dominated with yields up to 60% of the total catch. In terms of species with high economic value and dominant in catches were Bombay duck (Harpadon nehereus), Sodier croaker (Nibea soldado) and Green mub crab (Scylla paramamosain) which were play an important economic species and high proportion of the total income

ARSENIC REMOVAL FROM GROUNDWATER BY IRON CO PRECIPITATION IN CONTACT FILTER

Joint Research on Environmental Science and Technology for the Eart

PILOT SCALE STUDY ON AMMONIUM REMOVAL IN PHAP VAN WATER PLANT, HANOI CITY

Joint Research on Environmental Science and Technology for the Eart

Deposition of Crystalline GdIG Samples Using Metal Organic Decomposition Method

Fabrication of high quality ferrimagnetic insulators is an essential step for ultrafast magnonics, which utilizes antiferromagnetic exchange of the ferrimagnetic materials. In this work, we deposit high-quality GdIG thin films on a (111)-oriented GGG substrate using the Metal Organic Decomposition (MOD) method, a simple and high throughput method for depositing thin film materials. We postannealed samples at various temperatures and examined the effect on structural properties such as crystallinity and surface morphology. We found a transition in the growth mode that radically changes the morphology of the film as a function of annealing temperature and obtained an optimal annealing temperature for a uniform thin film with high crystallinity. Optimized GdIG has a high potential for spin wave applications with a low damping parameter in the order of 10(-3), which persists down to cryogenic temperatures

Spatiotemporal evolution of SARS-CoV-2 Alpha and Delta variants during large nationwide outbreak of COVID-19, Vietnam, 2021

We analyzed 1,303 SARS-CoV-2 whole-genome sequences from Vietnam, and found the Alpha and Delta variants were responsible for a large nationwide outbreak of COVID-19 in 2021. The Delta variant was confined to the AY.57 lineage and caused >1.7 million infections and >32,000 deaths. Viral transmission was strongly affected by nonpharmaceutical interventions

Safety and efficacy of fluoxetine on functional outcome after acute stroke (AFFINITY): a randomised, double-blind, placebo-controlled trial

Background Trials of fluoxetine for recovery after stroke report conflicting results. The Assessment oF FluoxetINe In sTroke recoverY (AFFINITY) trial aimed to show if daily oral fluoxetine for 6 months after stroke improves functional outcome in an ethnically diverse population. Methods AFFINITY was a randomised, parallel-group, double-blind, placebo-controlled trial done in 43 hospital stroke units in Australia (n=29), New Zealand (four), and Vietnam (ten). Eligible patients were adults (aged ≥18 years) with a clinical diagnosis of acute stroke in the previous 2–15 days, brain imaging consistent with ischaemic or haemorrhagic stroke, and a persisting neurological deficit that produced a modified Rankin Scale (mRS) score of 1 or more. Patients were randomly assigned 1:1 via a web-based system using a minimisation algorithm to once daily, oral fluoxetine 20 mg capsules or matching placebo for 6 months. Patients, carers, investigators, and outcome assessors were masked to the treatment allocation. The primary outcome was functional status, measured by the mRS, at 6 months. The primary analysis was an ordinal logistic regression of the mRS at 6 months, adjusted for minimisation variables. Primary and safety analyses were done according to the patient's treatment allocation. The trial is registered with the Australian New Zealand Clinical Trials Registry, ACTRN12611000774921. Findings Between Jan 11, 2013, and June 30, 2019, 1280 patients were recruited in Australia (n=532), New Zealand (n=42), and Vietnam (n=706), of whom 642 were randomly assigned to fluoxetine and 638 were randomly assigned to placebo. Mean duration of trial treatment was 167 days (SD 48·1). At 6 months, mRS data were available in 624 (97%) patients in the fluoxetine group and 632 (99%) in the placebo group. The distribution of mRS categories was similar in the fluoxetine and placebo groups (adjusted common odds ratio 0·94, 95% CI 0·76–1·15; p=0·53). Compared with patients in the placebo group, patients in the fluoxetine group had more falls (20 [3%] vs seven [1%]; p=0·018), bone fractures (19 [3%] vs six [1%]; p=0·014), and epileptic seizures (ten [2%] vs two [<1%]; p=0·038) at 6 months. Interpretation Oral fluoxetine 20 mg daily for 6 months after acute stroke did not improve functional outcome and increased the risk of falls, bone fractures, and epileptic seizures. These results do not support the use of fluoxetine to improve functional outcome after stroke

Positive exchange bias in Y3Fe5O12/CoFe2O4 bulk composite at room temperature

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Designing efficient spin thermoelectric devices via engineering magnon-phonon thermal coupling

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HIỆU QUẢ HOẠT ĐỘNG KHAI THÁC THỦY SẢN NGHỀ LƯỚI KÉO VÀ LƯỚI RÊ Ở VÙNG BIỂN TỈNH BẾN TRE

This study aims to describe the technical aspects, financial efficiency, and factors affecting the profit from fishing activities of trawlers and gillnets on the coast of Ben Tre province. The study was carried out in 2020 and 2021 through direct interviews of 170 fishing households (85 households of trawlers and 85 households of gillnets). The results show that the average catch yield per trip of trawlers (D6 to less than 12 m) is the lowest (116.8 kg/fishing trip), and that of the gillnets (D12 to less than 15 m) is the highest (542.9 kg/fishing trip). The average profit of the trawlers ranges between 3.6 and 15.5 million VND/fishing trip, corresponding to the marginal profit ratio of 1 to 1.6 times. In contrast, the net profit and marginal profit ratio of the gillnets range from 4.1 to 15.5 million VND/fishing trip and from 1.4 to 1.8 times. Three factors positively correlated with the net profit of fisherman's activities are (1) number of labourers on board (people/vessel); (2) D1 (trawlers with a vessel length of 6 to less than 12 m); and (3) D2 (gillnets with a vessel length of 12 to less than 15 m).Mục tiêu của nghiên cứu này là mô tả khía cạnh kỹ thuật và hiệu quả tài chính cũng như các yếu tố ảnh hưởng tới lợi nhuận của nghề lưới kéo và lưới rê ở vùng biển tỉnh Bến Tre. Nghiên cứu được thực hiện trong năm 2020 và 2021 thông qua phỏng vấn trực tiếp 170 hộ khai thác thủy sản ở Bến Tre (85 hộ lưới kéo và 85 hộ lưới rê). Kết quả cho thấy sản lượng bình quân của mỗi chuyến biển với lưới kéo (D6 đến 12 m) là thấp nhất (116,8 kg/chuyến) và lưới rê (D12 đến 15 m) là cao nhất (542,9 kg/chuyến). Nghề lưới kéo có lợi nhuận dao động từ 3,6 đến 15,5 triệu đồng/chuyến tương ứng với tỉ suất lợi nhuận 1 đến 1,6 lần. Trong khi đó, nghề lưới rê có lợi nhuận dao động từ 4,1 đến 15,5 triệu đồng/chuyến và tỉ suất lợi nhuận là 1,4 đến 1,8 lần. Ba yếu tố ảnh hưởng thuận lên lợi nhuận từ hoạt động khai thác thủy sản gồm (1) lao động trên tàu (người/tàu); (2) D1- lưới kéo có chiều dài tàu từ 6 đến dưới 12 m và (3) D2- lưới kéo có chiều dài từ 12 đến 15 m