105 research outputs found

    Low Knowledge and Unawareness of the Health Promotion as the Determinant Factors in Non-Compliance to the Mass Drug Administration Program

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    From the total population of the community in Kuningan District, 78.61% were taking filariasis drugs in the Mass Drug Administration (MDA) program in 2017. Cilimus Subdistrict became a filariasis-endemic area in Kuningan with 72.39% of the MDA program coverage in 2017 (government target >86%). The purpose of this study was to analyze the determinant factors of compliance with the MDA program. The study was an analytical study with a cross-sectional design and conducted from May to June 2018. The sample of 106 people was taken from the population living in Cilimus Subdistrict, Kuningan District, using a simple random sampling technique. Independent variables were collected by a constructed questionnaire included age, education level, knowledge, attitude, health promotion, and family support. A questionnaire also measured compliance with MDA as a dependent variable. Data analysis consisted of univariate, bivariate (chi-square and Fisher exact test), and multivariate analyses (multiple logistic regression). The results showed that the variables of knowledge, attitude, MDA health promotion, and family support influence compliance with the MDA (p-value < 0.05). Low knowledge and unawareness of the MDA health promotion proved to be the dominant factors in non-compliance with the MDA program

    An Empirical Study of Affective Commitment: the Case of Machinery Enterprises in Hochiminh City

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    The study aims to investigate the impact of participation in decision-making (PDM) and perceived organizational support (POS) on affective commitment in machinery enterprises. The study applies structural equation modeling (SEM) to test the research hypotheses. The authors surveyed 220 employees who work in machinery enterprises to collect data for the research. The study results indicate that both PDM and POS positively impact affective commitment. The findings provide empirical evidence to support the theoretical models that PDM and POS have a positive effect on affective commitment. The findings have implications for management theory: PDM and POS are the key antecedents of affective commitment. The findings also have implications for practical management in the machinery enterprises that managers should practice both PDM and POS to increase affective commitment

    GEOTOURISM CURRENT STATE AND FUTURE PROSPECTS: A CASE STUDY IN THE CAO BANG UNESCO GLOBAL GEOPARK, VIETNAM

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    Cao Bang Geopark is one of three UNESCO heritage sites in Vietnam, with unique geological, landscape and cultural properties of high value to tourism. This study aims to provide a better understanding of the potential for geotourism development in Cao Bang Global Geopark, thereby proposing reasonable development strategies in the future. The research using the multicriteria assessment and SWOT analysis tool found that Cao Bang Global Geopark has a high ability to attract tourists and exploit large tourism resources globally. However, the infrastructure, technical facilities, human resources and investment capital for geotourism are still limited and need to be improved. The research results can be considered useful references for academia and managers in finding strategies and solutions for sustainable geotourism development at Cao Bang Geopark in the future

    Screening for actinomyces isolated from soil with the ability to inhibit Xanthomonas oryzae pv. oryzae causing rice bacterial blight disease in Vietnam

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    Bacterial blight disease caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the major diseases in rice culture of Northen Vietnam, as well as other rice-growing regions of the world. In this study, we isolated and screened for actinomycete strains from Vietnam with the ability to inhibit Xoo isolates from northern Vietnam. From 90 actinomycete strains taken from soil in northern Vietnam in 2010, we screened for their antagonistic activity against 10 races of Xoo causing rice bacterial blight disease. Three actinomycete strains were found to inhibit all 10 Xoo races. Among the three strains, a strain namely VN10-A-44 was shown not to have the ability to produce toxic compounds and was selected for further study. The strain was identified as Streptomyces virginiae by 16S ribosomal RNA gene sequencing. We replaced soybean meal with tofu waste in antibiotic producing medium to improve antagonistic activity of VN10-A-44 against the Xoo pathogen and to make use of tofu waste for large-scale fermentation of VN10-A-44. We found that replacing soybean meal with 20 and 30 g of tofu waste/litter in the antibiotic producing medium gave the largest inhibition zone against the Xoo pathogen.Key words: Xanthomonas oryzae pv. oryzae, rice bacterial blight disease, Streptomyces virginiae, Vietnam

    Factors Influence on Promotion Mix in E-marketing: Case of Technology Services Enterprise in Vietnam

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    Purpose: The objective of this study is to clarify factors affecting the promotion mix in E-Marketing, with specific target audience being enterprises operating in the technology service industry in Vietnam.   Theoretical framework: Based on the promotion theory and social exchange theory, this study focuses on the factors that influence on the promotion decision in firms.   Design/Methodology/Approach: This study applies both qualitative and quantitative methods with data collected from a questionnaire survey.   Findings: There are 4 factors respectively Sales Promotion, Advertising, Public Relations and Personal Selling that affect the mixed promotion activities in E-Marketing of technology service enterprises in Vietnam.   Research, practical &amp; social implications: This study propose solutions to improve the promotion activities in the e – marketing of firms in Vietnam.   Originality/Value: This study is one of the early studies that have focused in this field in Vietnam.Propósito: El objetivo de este estudio es aclarar los factores que afectan la combinación de promoción en E-Marketing, con un público objetivo específico que son las empresas que operan en la industria de servicios de tecnología en Vietnam. Marco teórico: Basado en la teoría de la promoción y la teoría del intercambio social, este estudio se centra en los factores que influyen en la decisión de promoción en las empresas. Diseño/metodología/enfoque: este estudio aplica métodos cualitativos y cuantitativos con datos recopilados de una encuesta de cuestionario. Hallazgos: Existen 4 factores, respectivamente, Promoción de Ventas, Publicidad, Relaciones Públicas y Ventas Personales que afectan las actividades mixtas de promoción en E-Marketing de las empresas de servicios de tecnología en Vietnam. Implicaciones de investigación, prácticas y sociales: este estudio propone soluciones para mejorar las actividades de promoción en el marketing electrónico de las empresas en Vietnam. Originalidad/valor: Este estudio es uno de los primeros que se han centrado en este campo en Vietnam.Objetivo: O objetivo deste estudo é esclarecer os fatores que afetam o mix de promoção no E-Marketing, tendo como público-alvo específico as empresas que operam no setor de serviços de tecnologia no Vietnã.. Referencial teórico: Com base na teoria da promoção e na teoria das trocas sociais, este estudo se concentra nos fatores que influenciam a decisão de promoção nas empresas.. Desenho/metodologia/abordagem: Este estudo aplica métodos qualitativos e quantitativos com dados coletados de uma pesquisa por questionário. Resultados: Existem 4 fatores, respectivamente, Promoção de Vendas, Publicidade, Relações Públicas e Vendas Pessoais que afetam as atividades de promoção mista em E-Marketing de empresas de serviços de tecnologia no Vietnã. Pesquisa, implicações práticas e sociais: Este estudo propõe soluções para melhorar as atividades de promoção no e – marketing de empresas no Vietnã. Originalidade/valor: Este estudo é um dos primeiros estudos que se concentraram neste campo no Vietnã. Palavras-chave:&nbsp; Mix de promoção; E-Marketing; Serviços de tecnologia; Vietn

    Autologous Transplantation of Adipose-Derived Stem Cells to Treat Acute Spinal Cord Injury: Evaluation of Clinical Signs, Mental Signs, and Quality of Life

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    BACKGROUD: Spinal cord injury (SCI) is damage that can cause a temporary or permanent change in spinal cord functions AIM: This work evaluates clinical signs, mental signs, and quality of life (QoL) after autologous adipose-derived stem cells (ADSCs) transplantation to treat acute spinal cord injury (SCI). MATERIAL AND METHODS: In this study, 47 SCI patients were recruited and divided into two groups: intervention and control. ADSCs were isolated and cultured under the cell culture quality control procedure. All patients in both groups underwent neurosurgery with or without ADSC transplantation. The recovery regarding neurological muscle, QoL, neurogenic bladder, and mental improvement was assessed after transplantation. RESULTS: All patients had improved in terms of motor function, bladder function, and daily living. No patients reported any side effect. MRI imaging showed significant changes in the lesion length of the spinal canal and the thickening of the spinal cord. Mental improvement was highest at six months after transplantation and lowest at one month after transplantation. The proportion of patients whose quality of life improved after treatment was 100%, while 80% of patients were satisfied with treatment outcomes. CONCLUSIONS: Thus, our data suggested that ADSCs transplantation was safe and effective for the treatment of SCI patients. Neurological muscle and neurogenic bladder were improved significantly after transplantation

    Short Tandem Repeats Used in Preimplantation Genetic Testing of Î’-Thalassemia: Genetic Polymorphisms For 15 Linked Loci in the Vietnamese Population

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    BACKGROUND: β-thalassemia is one of the most common monogenic diseases worldwide. Preimplantation genetic testing (PGT) of β-thalassemia is performed to avoid affected pregnancies has become increasingly popular worldwide. In which, the indirect analysis using short tandem repeat (STRs) linking with HBB gene to detect different β-globin (HBB) gene mutation is a simple, accurate, economical and also provides additional control of contamination and allele-drop-out ADO. AIM: This study established microsatellite markers for PGT of Vietnamese β-thalassemia patient. METHODS: Fifteen (15) STRs gathered from 5 populations were identified by in silico tools within 1 Mb flanking the HBB gene. The multiplex PCR reaction was optimized and performed on 106 DNA samples from at-risk families. RESULTS: After estimating, PIC values were ≥ 0.7 for all markers, with expected heterozygosity and observed heterozygosity values ranged from 0.81 to 0.92 and 0.53 to 0.86, respectively. One hundred percent of individuals had at least seven heterozygous markers and were found to be heterozygous for at least two markers on either side of the HBB gene. The STRs panel was successfully performed on one at-risk family. CONCLUSION: In general, a pentadecaplex marker (all &lt; 1 Mb from the HBB gene) assay was constituted for β-thalassemia PGT on Vietnamese population

    NGHIÊN CỨU THÀNH PHẦN VÀ HÀM LƯỢNG CÁC LỚP CHẤT LIPID, PHOSPHOLIPID, AXIT BÉO, VÀ PHOSPHATIDYLCHOLINE LOÀI SAN HÔ MỀM CAPNELLA SP.

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    The total lipid content of the soft coral Capnella sp. contained 1.44 ± 0.10% of the fresh weight. In the fatty acid content, the tetracosapolyenoic fatty acids 24:5n-6 and 24:6n-3, which were the typical markers for the soft corals (the eight compartment coral), and the fatty acids that marked for symbiotic microorganism including 18:5n-3, 18:2n-6, 18:3n-6, 18:4n-3, 20:4n-3 were presented. The result of the lipid composition analysis showed that the total lipid contained polar lipid, sterol, free fatty acid, triacylglycerol, monoalkyldiacylglycerol, hydrocarbon and wax. Of these, the polar lipid displayed the highest content with 21.14 ± 1.17% of the total lipid. The phospholipid composition of the soft coral Capnella sp. contained the characteristic phospholipid subclasses of the animals of the phylum Cnidaria, including phosphatidylethanolamine, phosphatidylcholine, phosphatidylserine, phosphatidylinositol, and ceramide aminoethylphosphonate (phosphonolipid, CAEP). Of these, phosphatidylcholine exhibited the highest content with 35.53 ± 1.46% of the total phospholipid. This is the first time that the content and composition of the molecular types of the phosphatidylcholine from a Vietnamese soft coral species have been investigated and reported. By using modern mass spectrometry IT TOF LC-MS, the presence of 13 molecular types have been precisely identified, which PC 18:0e/20:4 and PC 16:0e/20:4 were the two ingredients displaying the highest content.Hàm lượng lipid tổng của mẫu san hô mềm Capnella sp. chiếm 1,44 ± 0,10% so với trọng lượng mẫu tươi. Trong thành phần axit béo có mặt các axit béo tetracosapolyenoic 24:5n-6 và 24:6n-3 là axit béo đánh dấu điển hình cho san hô mềm (san hô tám ngăn) và các axit béo đánh dấu cho vi sinh vật cộng sinh như 18:5n-3, 18:2n-6, 18:3n-6, 18:4n-3, 20:4n-3. Kết quả phân tích lớp chất lipid cho thấy trong lipid tổng có mặt các lớp chất lipid chính là lipid phân cực, sterol, axit béo tự do, triacylglycerol, monoalkyldiacylglycerol, hydrocacbon và sáp, trong đó lipid phân cực chiếm hàm lượng cao nhất (21,14 ± 1,17% hàm lượng lipid tổng). Thành phần phospholipid của san hô mềm Capnella sp. có mặt các phân lớp phospholipid đặc trưng của động vật ngành Cnidarian là phosphatidylethanolamine, phosphatidylcholine, phosphatidylserine, phosphatidylinositol, phosphonolipid là ceramide aminoethylphosphonate, trong đó phosphatidylcholine chiếm hàm lượng cao nhất (35,53 ± 1,46% tổng phospholipid). Đây là lần đầu tiên ở Việt Nam, thành phần và hàm lượng các dạng phân tử trong lớp chất phosphatidylcholine từ loài san hô mềm của Việt Nam được nghiên cứu và công bố, kết quả đã xác định được sự có mặt của 13 dạng phân tử bằng phương pháp phổ khối hiện đại LC-MS IT TOF với độ chính xác cao. Hai dạng phân tử chiếm hàm lượng cao nhất là PC 18:0e/20:4 và PC 16:0e/20:4

    Effect of Silver Nanowire Dimension to Ammonia Adsorption of Graphene-silver Nanowires Hybrid

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    In this report, we study the effect of silver nanowires (AgNws) dimension to electrical properties of rGO/AgNws hybrid. The alteration of these electrical properties leads the difference of ammonia sensibility of the rGO/AgNws hybrid based sensing devices. When the rGO is accompanied by AgNws of different sizes from \sim 500$~\text{nm to } 10\;\mum, the ammonia sensitivity of these hybrids change from 60% to 340% alteration compared with the bare rGO material
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