STUDENTS' PERCEPTION OF THE INFLUENCE OF INTONATION IN ENGLISH ON CONVEYING THE MEANING OF SPEECH IN COMMUNICATION

In communication, intonation plays an important role in conveying the meaning of a speech. In this article, we study students' perception of the influence of intonation in conveying the meaning of speech in communication to propose solutions to help students overcome intonation errors when communicating, as well as, help teachers have appropriate intonation teaching methods. Our data and analysis are based on research documents, surveys, and in-depth interviews with students. According to the study results, most students are well aware of the importance of intonation and of the factors affecting intonation, and they are also aware of the causes of intonation errors. However, students do not apply their knowledge of intonation to speech, they stop at the cognitive level. The study indicates that students often make intonation mistakes in Tag-question, Wh-question, and Imperative sentence in communication.  Article visualizations

IMPROVEMENT OF CO2 PURIFYING SYSTEM BY PHOTOCATALYST FOR APPLICATION IN MICROALGAE CULTURE TECHNOLOGY

By reactive grinding method Vanadium-doped rutile TiO2 nanoparticle material was obtained with an average particle size of 20‐40nm, the Brunauer–Emmet–Teller (BET) specific surface area about 20 m2g−1 and it absorbed strongly in the UV region and increased at the visible wavelength of 430 – 570 nm. This study focused on the improvement of exhaust gas treatment from coal-fired flue gas of the traditional adsorption-catalysis system (Modular System for Treating Flue Gas - MSTFG) by using the V2O5/TiO2 Rutile as photocatalyst. The results showed that integrating both catalytic systems mentioned above increased the gas treatment efficiency: CO from 77 % to over 98 %, NOx from 50 % to 93 %, SO2 was absent as opposed to the input gas component. Also it showed that V2O5/TiO2 Rutile integrated with MSTFG has got high efficiency of CO treatment, also secured the high obtained CO2 concentration as a valuable carbon source for microagal mass culture as well as saving energy and simplifying devices

Detecting familial defective apolipoprotein B-100 R3500Q in Vietnamese patients by PCR-sequencing

Familial defective apolipoprotein B-100 (FDB) is an autosomal codominant disorder associated with hypercholesterolemia, caused by mutations in and around codon 3500 of the Apolipoprotein (Apo) B gene, which encodes Apo B-100. The first mutation occurred in Arginine codons to be described, and the most characterized, is caused by a G→A transition at nucleotide 10,708 and results in the substitution of Arginine by Glutamine at codon 3500 (ApoB R3500Q). In this study, we have identified 27 R3500Q mutations in known FDB patients using PCRSequencing method. As the result, most of the patients carried heterozygous mutation R3500Q. PCR-Sequencing method that we have applied in this study proved consistent and so easily identified mutations correctly

Can a Short Food Supply Chain Create Sustainable Benefits for Small Farmers in Developing Countries? An Exploratory Study of Vietnam

A number of studies have indicated that short food supply chains could create economic, social, and environmental benefits, but most of those chains were implemented in developed countries. This research aims to find out the characteristics of short food supply chains and their benefits to small farmers in Vietnam, which is a developing country, based on the survey results from 338 small farmers in the third quarter of 2020, with the support of Stata 14 software. The results showed that the short food supply chains in the survey sample in Vietnam were characterized by two main actors: small farmers and distributors. Farmers could sell products flexibly at the local market. There was some initial evidence to prove that these chains helped to stabilize the input, output price, and revenue; formulated sustainable income; and increased the satisfaction and confidence of farmers. They eliminated gender discrimination in rural areas and improved livelihood for ethnic minorities. These chains also enhanced the mindset on green, organic, and clean production of farmers, which in turn created environmental benefits. COVID-19 has posed a negative impact on the income of farmers and made them change their production and sales method. Therefore, the research could suggest some policies to sustainably develop the short food supply chains in Vietnam in the future

PHÁT HIỆN VI KHUẨN PASTEURELLA MULTOCIDA GÂY BỆNH TỤ HUYẾT TRÙNG Ở CỪU PHAN RANG BẰNG KỸ THUẬT PCR

Pasteurellosis is an infectious disease causing severe damage to livestock and poultry since it leads to animals’ death, including sheep of all ages. In this study, we developed a sensitive, specific and accurate PCR method for detecting P. multocida in Phan Rang sheep using FKMT1/RKMT1 primers targeted to the KMT1 gene of P. multocida. The PCR-based method was used to detect the KMT1 gene from 104 copies of the KMT1-bearing plasmid. The method’s specificity was demonstrated by the successful amplification of KMT1 from the mixture containing other DNA of Gram-negative bacteria, such as E. coli or M. haemolytica. In particular, with the present method, we successfully detected P. multocida with crude DNA obtained from P. multocida or nasal swabs of pasteurellosis-suspected sheep samples treated in a TE buffer containing 0.1% TritonX-100. This is the first report on using a PCR-based method for detecting P. multocida from Phan Rang sheep, and it can serve as the basis for an effective procedure to diagnose pasteurellosis in sheep.Tụ huyết trùng là một bệnh truyền nhiễm có thể gây thiệt hại nghiêm trọng cho chăn nuôi gia súc, gia cầm nếu không được chẩn đoán và điều trị kịp thời. Vì vậy, trong nghiên cứu này chúng tôi đã phát triển phương pháp PCR có độ nhạy, độ đặc hiệu và độ chính xác cao để phát hiện sự có mặt của vi khuẩn P. multocida, một trong những tác nhân gây bệnh tụ huyết trùng trên cừu Phan Rang. Gen KMT1 của vi khuẩn P. multocida được nhân lên bằng cặp mồi đặc hiệu FKMT1/RKMT1 ở nồng độ khoảng 104 bản sao của plasmid mang gen đích. Phản ứng PCR không bị ảnh hưởng khi có mặt DNA của một số vi khuẩn Gram âm khác như E. coli hay M. haemolytica. Đặc biệt, với phương pháp PCR, chúng tôi đã phát hiện sự có mặt của vi khuẩn P. multocida từ mẫu DNA thô thu được bằng xử lý mẫu vi khuẩn/mẫu dịch ngoáy mũi của cừu nghi nhiễm bệnh trong đệm TE chứa 0,1% TritonX-100 mà không cần tinh sạch DNA tổng số. Đây là nghiên cứu đầu tiên công bố một phương pháp xác định sự có mặt của P. multocida trên cừu Phan Rang và là cơ sở để xây dựng quy trình chẩn đoán hiệu quả nhằm góp phần kiểm soát bệnh tụ huyết trùng trên đối tượng này

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

Tea production between contract and none contract farmers in Phu Tho Province of Vietnam

peer reviewedTea is one of key crops which substantially contributes to Vietnam’s annual exports, creates jobs and raises income for farmers. However, tea production farmers are still facing many difficulties such as low farm management, disease control, etc. Of which, tea consumption is considered to be the most challenge and the main reasons is the low cooperation between farmers and other stakeholders in the tea value chain. This study aims to look more deeply and find out the linkage and benefit of farmers in the model of cooperation between farmers and tea processing company through contract and none contract tea production in the study site. The results shown that the contract farming in tea production in the study sites was still not tightened and did not reflect clearly its real roles. However, it was gradually reflected it s roles as the fully contract farmers (worker farmers) received the highest productivity, turnover and value added and the most satisfied, the contract farmers (partly contract) achieved not as high benefit but quite satisfied with their results and contract. None contract farmers although received reasonable results recently but they still did not assure the production, they would like to engage in some kinds of cooperation in the future

The complete mitochondrial genome sequence of the indigenous I pig () in Vietnam

Objective The I pig is a long nurtured longstanding breed in Vietnam, and contains excellent indigenous genetic resources. However, after 1970s, I pig breeds have become a small population because of decreasing farming areas and increasing pressure from foreign breeds with a high growth rate. Thus, there is now the risk of the disappearance of the I pigs breed. The aim of this study was to focus on classifying and identifying the I pig genetic origin and supplying molecular makers for conservation activities. Methods This study sequenced the complete mitochondrial genome and used the sequencing result to analyze the phylogenetic relationship of I pig with Asian and European domestic pigs and wild boars. The full sequence was annotated and predicted the secondary tRNA. Results The total length of I pig mitochondrial genome (accession number KX094894) was 16,731 base pairs, comprised two rRNA (12S and 16S), 22 tRNA and 13 mRNA genes. The annotation structures were not different from other pig breeds. Some component indexes as AT content, GC, and AT skew were counted, in which AT content (60.09%) was smaller than other pigs. We built the phylogenetic trees from full sequence and D loop sequence using Bayesian method. The result showed that I pig, Banna mini, wild boar (WB) Vietnam and WB Hainan or WB Korea, WB Japan were a cluster. They were a group within the Asian clade distinct from Chinese pigs and other Asian breeds in both phylogenetic trees (0.0004 and 0.0057, respectively). Conclusion These results were similar to previous phylogenic study in Vietnamese pig and showed the genetic distinctness of I pig with other Asian domestic pigs

Zarządzanie i wydajność operacji: mediacyjna rola praktyk zarządzania zielonym łańcuchem dostaw w MNC

Recently, operational and supply chain management practices are considered the foremost solution for high operational performance and gain recent researchers' intentions. Thus, the present study aims to examine the role of operational management practices such as extensive training, teamwork, total quality management and just-in-time on the multinational organization's operational performance in Vietnam. The goals also include the examination of the mediating impact of green practices of supply chain among the nexus of operational management practices and operational performance of the multinational organization in Vietnam. The operational and supply chain managers of the multinational organization in Vietnam are the respondents of the study that have been selected by using purposive sampling. The questionnaires have been sued for the data collection, and smart-PLS has been executed for analysis. The results revealed that all the operational management practices have a positive and significant association with multinational organizations’ operational performance in Vietnam. The findings also exposed that the supply chain's green practices are positively mediating among the nexus of operational management practices and operational performance of the multinational organization in Vietnam. These outcomes are suitable for the regulators to develop the policies related to the operational and supply chain practices that could increase organizational performance.Ostatnio praktyki zarządzania operacyjnego i zarządzania łańcuchem dostaw są uważane za najważniejsze rozwiązanie zapewniające wysoką wydajność operacyjną i zyskują najnowsze zamierzenia badaczy. W związku z tym niniejsze badanie ma na celu zbadanie roli praktyk zarządzania operacyjnego, takich jak szeroko zakrojone szkolenia, praca zespołowa, kompleksowe zarządzanie jakością i „just in time” na wyniki operacyjne organizacji wielonarodowej w Wietnamie. Cele obejmują również zbadanie pośredniczącego wpływu ekologicznych praktyk w łańcuchu dostaw w powiązaniu praktyk zarządzania operacyjnego i wyników operacyjnych wielonarodowej organizacji w Wietnamie. Kierownicy operacyjni i łańcucha dostaw międzynarodowej organizacji w Wietnamie są respondentami badania, którzy zostali wybrani na podstawie celowego pobierania próbek. Kwestionariusze zostały pozwane w celu zebrania danych, a smart-PLS został wykonany do analizy. Wyniki ujawniły, że wszystkie praktyki zarządzania operacyjnego mają pozytywny i znaczący związek z wynikami operacyjnymi organizacji międzynarodowych w Wietnamie. Ustalenia ujawniły również, że zielone praktyki łańcucha dostaw pozytywnie pośredniczą w powiązaniu praktyk zarządzania operacyjnego i wyników operacyjnych wielonarodowej organizacji w Wietnamie. Wyniki te są odpowiednie dla organów regulacyjnych do opracowania polityk związanych z praktykami operacyjnymi i praktykami łańcucha dostaw, które mogą zwiększyć wydajność organizacji