NGHIÊN CỨU THỰC NGHIỆM TÁC DỤNG GIẢM CHẤN CỦA CÔNG TRÌNH CHỊU TẢI TRỌNG SÓNG XUNG KÍCH DƯỚI NƯỚC Ở QUẦN ĐẢO TRƯỜNG SA

Research on the problem of load damping of the structures under the effect of shock waves in environment generally and in water particularly is important and necessary for military structures and buildings of inhabitants. If properly designed and having solution to reduce the effects of the blast wave, general structures will be increased markedly and reduce ability of being destroyed. One of the solutions to reduce the effects of the blast wave is to glue layers of material having capable of absorbing blast waves onto the structures. The theoretical and empirical studies are currently less pronounced due to many different reasons. This paper presents modeling and experimental results from the underwater explosion topic KC09.06/11-15 in Truong Sa archipelago to determine the damping effect of the structure modeling is designed with layers of featured material on  its surface.Nghiên cứu về vấn đề giảm chấn của công trình dưới tác dụng của sóng xung kích trong các môi trường nói chung và môi trường nước nói riêng đều quan trọng và cần thiết đối với công trình quân sự và dân sinh. Nếu được thiết kế hợp lý và có các biện pháp làm giảm tác dụng của sóng nổ thì sức sống của công trình được tăng lên rõ rệt, khả năng bị phá hủy giảm. Một trong những giải pháp giảm tác dụng của sóng nổ là dán lớp vât liệu có khả năng hấp thụ sóng nổ lên kết cấu công trình. Các công trình lý thuyết và thực nghiệm về vấn đề này hiện ít được công bố do nhiều nguyên nhân khác nhau. Bài báo trình bày mô hình và kết quả thí nghiệm nổ dưới nước từ đề tài KC09.06/11-15 tại khu vực Trường Sa nhằm xác định tác dụng giảm chấn của mô hình công trình được thiết kế lớp vật liệu đặc trưng trên bề mặt

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

Present situation and prospect of shelter, living standard and environment improvement for the urban poor in Ho Chi Minh City : final report

Sub-project no. 1; part 2 of

Fisheries Co-management in Vietnam: Issues and Approach

Under open access regime, the coastal fisheries resources are overexploited in Vietnam. Recently, the community based fisheries co-management is becoming priority policy of Viet Nam, however, the government is confusing about how to approach it. The piloting approach by learning from previous and existing pilot community based fisheries management models have been conducted, both national and international level however, it seem not to be sufficient. One of the main reasons is unavailability of environment for involvement of the fishing community in decision making process and mechanism to make them feel the resources are belong to them. The papers present and discuss the issues and approach for fisheries co-management development in Vietnam. The findings show that the community based fisheries management has been initiated in Vietnam since 1990s, but mainly based on the pilot case approach that not sustained however its lesions learn can be dawned to disseminated experience and sharing. The support policy of government promoting fisheries co-management are not sufficient but the legal framework are circuital issues. The traditional aspects and the political context of Vietnam need to be considering in any donors or national interventions on arena of fisheries management in Vietnam

Socio-economic, housing and environment characteristics of the urban poor in Hanoi : final report

Sub-project no. 1; part 1 of

Adaptation of the U.S.-oriented evidence-based intervention TransAction for transgender women in Vietnam

Background: Trans women in Vietnam are among the most vulnerable groups with high HIV risk and limited access to care. TransAction is an evidence-based intervention to reduce trans women's HIV risks and increase social support and access to care.Aims: The aim of this study was to adapt TransAction to the specific needs of trans women in Vietnam. Methods: This study was conducted in Ho Chi Minh City from November 2020 through June 2021 Using the ADAPT-ITT framework, interviews, focus groups, and community advisory board meetings were conducted with trans women, service providers, and community members to better understand Vietnamese contexts of gender transition, HIV risks, and service gaps. Feedback was solicited on TransAction content and format adaptation. Results: Trans women in Vietnam faced unique challenges related to family norms, policy and regulatory constraints, and limited transgender-specific or gender-inclusive services. TransAction was modified to accommodate identified challenges and needs, and intervention components to enhance family support were added. Strategies to cope with stigma and seek support and services were adapted to Vietnamese culture and policies. Discussion: Post-adaptation interviews and focus groups demonstrated strong feasibility and acceptability for the adapted intervention, which can potentially be used to reduce Vietnamese trans women's HIV risks and increase their social support