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Thi My Ni PHAM,Thi Ngoc Thao PHAM,Ha Phuong Truc NGUYEN,Bao Tuyen LY,Truc Linh NGUYEN,Hoanh Su LE 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.5
Banking and finance is a broad term that incorporates a variety of smaller, more specialized subjects such as corporate finance, tax finance, and insurance finance. A virtual assistant that assists users in searching for information about banking and finance terms might be an extremely beneficial tool for users. In this study, we explored the process of searching for information, seeking opportunities, and developing a virtual assistant in the first stages of starting learning and understanding Vietnamese to increase effectiveness and save time, which is also an innovative business practice in Use-case Vietnam. We built the FIBA2020 dataset and proposed a pipeline that used Natural Language Processing (NLP) inclusive of Natural Language Understanding (NLU) algorithms to build chatbot applications. The open-source framework RASA is used to implement the system in our study. We aim to improve our model performance by replacing parts of RASA’s default tokenizers with Vietnamese tokenizers and experimenting with various language models. The best accuracy we achieved is 86.48% and 70.04% in the ideal condition and worst condition, respectively. Finally, we put our findings into practice by creating an Android virtual assistant application using the model trained using Whitespace tokenizer and the pre-trained language m-BERT.
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The chemistry and engineering of mussel-inspired glue matrix for tissue adhesive and hemostatic
PHAM THI MY PHUONG,원현정,오연정,이형신,이강대,박성영 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.80 No.-
The present study aimed to develop a bio-adhesive material with excellent hemostatic and rapid woundhealing properties using a catechol moiety (2chloro-30,40-dihydroxyacetophenone) conjugated to poly(dimethyl amino ethyl methacrylate-co-t-butyl methacrylate) [poly(DMA-co-t-BMA)-2-chloro-30,40-dihydroxyacetophenone (CA), C-PDB]. The desired glue matrix was formed by crosslinking between CPDBand chitosan via the Michael addition reaction. During glue matrix formation, chitosan plays a vitalrole as a cross-linker because the amine group of chitosan can easily react with the quinone from CA,based on catechol chemistry under mild alkaline conditions. Lap shear strength tests showed that theformulated glue matrix had a significant adhesive force at around 1.288 MPa and it formed quickly invitro. In addition, when applied on a bleeding site on a rat aorta in vivo, the prepared glue matrixdisplayed strong hemostatic behavior. Hematoxylin and eosin (H&E), Masson’s trichrome, and reticulinstaining of wounds (hepatic tissue) treated with the prepared glue matrix displayed rapid wound healing. Therefore, the prepared glue matrix is a potential candidate as a hemostatic and wound-healing agent forclinical applications.
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Thi Ngoc Thao Pham,Ha Phuong Truc Nguyen,Thi My Ni Pham,Quang Than Tran,Hoanh Su Le ASCONS 2022 IJASC Vol.4 No.1
Background/Objectives: Automation is a trend currently, and chatbots are an excellent way for organizations to automate customer service duties. The medical profession has been put under immense strain during COVID-19 outbreaks as the number of patients increases rapidly, causing medical institutions and hospitals to be overcrowded. Users will find it challenging to schedule an appointment at a clinic, provide health advice, or update information due to this. Methods/Statistical analysis: A chatbot that supports users in advising, making appointments, and screening COVID-19 patients at clinics can be a valuable resource for both the user and the clinic in this situation. This paper developed a framework for developing a chatbot for clinics using a specific Frequent Answer Question (FAQ) dataset relating to COVID-19 and frequent diseases in Vietnam. In our study, the RASA framework was used with data collected from interviewing receptionists and website of clinics. Findings: Our chatbot can act as a counsellor, assisting patients with scheduling appointments, answering inquiries about symptoms of common illnesses, in particular, COVID-19 patient screening. In addition, we integrated our chatbot with Facebook Messenger and Zalo, two major social networking sites in Vietnam. Improvements/Applications: For specific implementation with each clinic, dataset enhancement and new services information update are necessary for broader applications.
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Hong Thi Bich Truong,Hiep Nghia Bui,Hieu Trung Nguyen,Thanh-Luu Pham,Duy Ngoc Nguyen,Yuan-Shing Perng,Linh Thi My Lam,Thi-Dieu-Hien Vo,Van-Truc Nguyen,Ha Manh Bui 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.4
Electron-beam (EB) irradiation was employed to degrade enrofloxacin (ENR) in an aqueous solution. Thealgal growth inhibition test revealed that ENR exhibited low toxicity against the cyanobacterium Arthrospira sp., with anEC50-96 h value of 5.17mg/L. The Taguchi design also involved finding the best optimum for ENR treatment using EB. Results revealed that the high-efficiency removal of ENR in an aqueous solution was approximately 98.53% under theoptimum conditions of an absorbed dose of 5 kGy, a pH of 5.0, and an initial ENR concentration of 10 mg/L and anH2O2 concentration of 2mM. The ERR degradation under a couple of EB irradiation and H2O2 followed pseudo-firstorderkinetics, with an R2 of ~0.970. The major degradation pathways of ENR were suggested by density functional theory,natural bond orbital calculations, and liquid chromatography-tandem mass spectrometry (LC/MS/MS) analysis. Lifecycle assessment (LCA) was also performed to evaluate the impact of the EB on removing ENR; the industrial processwas designed based on laboratory tests aimed with the ReCiPe tool. The obtained results indicated that energy consumptionand H2O2 affect environmental impacts with order human health, ecology systems, and natural resource. The LCAalso proved that EB could be a green and efficient method for eliminating pharmaceutical contaminants in water.
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The chemistry and engineering of mussel-inspired glue matrix for tissue adhesive and hemostatic
Phuong, Pham Thi My,Won, Hyun Jeong,Oh, Yeon Jeong,Lee, Hyoung Sin,Lee, Kang Dae,Park, Sung Young Elsevier 2019 Journal of industrial and engineering chemistry Vol.80 No.-
<P><B>Abstract</B></P> <P>The present study aimed to develop a bio-adhesive material with excellent hemostatic and rapid wound healing properties using a catechol moiety (2chloro-3′,4′-dihydroxyacetophenone) conjugated to poly(dimethyl amino ethyl methacrylate-co-<I>t-</I>butyl methacrylate) [poly(DMA-co-<I>t</I>-BMA)-2-chloro-3′,4′-dihydroxyacetophenone (CA), C-PDB]. The desired glue matrix was formed by crosslinking between C-PDB and chitosan via the Michael addition reaction. During glue matrix formation, chitosan plays a vital role as a cross-linker because the amine group of chitosan can easily react with the quinone from CA, based on catechol chemistry under mild alkaline conditions. Lap shear strength tests showed that the formulated glue matrix had a significant adhesive force at around 1.288MPa and it formed quickly in vitro. In addition, when applied on a bleeding site on a rat aorta in vivo, the prepared glue matrix displayed strong hemostatic behavior. Hematoxylin and eosin (H&E), Masson’s trichrome, and reticulin staining of wounds (hepatic tissue) treated with the prepared glue matrix displayed rapid wound healing. Therefore, the prepared glue matrix is a potential candidate as a hemostatic and wound-healing agent for clinical applications.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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RESEARCH ON FACTORS AFFECTING COMPETITIVENESS OF SMALL AND MEDIUM FOOD ENTERPRISES IN HANOI
Nguyen Thi My Nguyet,Luu Thi Thuy Duong,Pham đac Thang 한국무역학회 2017 한국무역학회 국제학술대회 Vol.2017 No.11
Competency theory confirms that competitiveness derives from capacity of resources maintenance and coordination and capacity allowing enterprises to gain their target and purpose. In this paper, in food enterprises, competitiveness is the exploitation and use of enterprise’s capacities to maintain and create competitive advantage to gain higher business performance than competitors and adapt to changes of business environment. This research shows 09 factors that affect to competitiveness of small and medium food enterprises. The research’s result and processed data shows that competitiveness of small and medium food enterprises in Hanoi is most affected by 03 factors: capacities of product quality management, marketing, production and technology. Other factors having less effect on competitiveness of enterprise include: capacities of human resource and finance. These results are the basis for suggesting some solutions to enhance competitiveness of these enterprises in Hanoi.
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Loc My Thi Nguyen,Tien-Trung Nguyen,Thanh Thi Nghiem,Hien Thu Thi Le,Thao Phuong Thi Trinh,Thuan Van Pham,Thanh Chi Nguyen,Linh Khanh Hoang,Trung Tran 한국과학학술지편집인협의회 2020 Science Editing Vol.7 No.1
In the context of the need to ensure appropriate signalling of the publication of high-quality, international-calibre publications in Vietnam, as well as new policies to improve the quality and effectiveness of scientific research in Vietnam, it is practical to investigate the possibility of developing a national open access database (NOAD). This study aims to answer the question of whether it is necessary to establish a NOAD in Vietnam. We used document analysis to evaluate issues related to NOADs. The results of this study show the complexity, lack of consistency, and difficulty in obtaining practical statistics and assessing research and scientific records in Vietnam today. Furthermore, the findings of this study imply that it is necessary to establish a NOAD of scientific research in Vietnam. The information in this report can be used to develop a NOAD for Vietnam in particular, and for any country that lacks one in general.
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Determinants Influencing Tax Compliance: The Case of Vietnam
NGUYEN, Thi Thuy Du'o'ng,PHAM, Thi My Linh,LE, Thanh Tam,TRUONG, Thi Hoai Linh,TRAN, Manh Dung Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.2
The purpose of this paper is to ascertain the key factors affecting tax compliance among Vietnamese firms in Vietnam. We employ both qualitative and quantitative research methods. Qualitative research has been carried out through focus group discussions with ten chief accountants and tax officers. Quantitative research has been conducted through interviews with 200 firms (chief accountants or financial directors) in Vietnam. Analysis of the model includes the following stages: (i) Cronbach's test for reliability of the scale, (ii) exploratory factor analysis (EFA), (iii) confirmatory factor analysis (CFA), and (iv) structural equation model (SEM). The results of the research show that voluntary tax compliance is directly affected by the three factors of audit probability, corporate reputation and business ownership. The probability of audit and severity of sanctions have the strongest impact on tax compliance. Therefore, the tax authorities need to strengthen the inspection of tax declarations, tax payments and tax refunds of firms. The paper confirms that enforced tax compliance is directly affected by the three factors of audit probability, sanction severity and social norms. Voluntary compliance and compulsory compliance have an effect on tax compliance, though voluntary compliance has a more powerful impact.
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( Hai The Pham ),( Phuong Ha Vu ),( Thuy Thu Thi Nguyen ),( Ha Viet Thi Bui ),( Huyen Thanh Thi Tran ),( Hanh My Tran ),( Huy Quang Nguyen ),( Byung Hong Kim ) 한국미생물생명공학회(구 한국산업미생물학회) 2019 Journal of microbiology and biotechnology Vol.29 No.10
Sediment bioelectrochemical systems (SBESs) can be integrated into brackish aquaculture ponds for in-situ bioremediation of the pond water and sediment. Such an in-situ system offers advantages including reduced treatment cost, reusability and simple handling. In order to realize such an application potential of the SBES, in this laboratory-scale study we investigated the effect of several controllable and uncontrollable operational factors on the in-situ bioremediation performance of a tank model of a brackish aquaculture pond, into which a SBES was integrated, in comparison with a natural degradation control model. The performance was evaluated in terms of electricity generation by the SBES, Chemical oxygen demand (COD) removal and nitrogen removal of both the tank water and the tank sediment. Real-life conditions of the operational parameters were also experimented to understand the most close-to-practice responses of the system to their changes. Predictable effects of controllable parameters including external resistance and electrode spacing, similar to those reported previously for the BESs, were shown by the results but exceptions were observed. Accordingly, while increasing the electrode spacing reduced the current densities but generally improved COD and nitrogen removal, increasing the external resistance could result in decreased COD removal but also increased nitrogen removal and decreased current densities. However, maximum electricity generation and COD removal efficiency difference of the SBES (versus the control) could be reached with an external resistance of 100 Ω, not with the lowest one of 10 Ω. The effects of uncontrollable parameters such as ambient temperature, salinity and pH of the pond (tank) water were rather unpredictable. Temperatures higher than 35℃ seemed to have more accelaration effect on natural degradation than on bioelectrochemical processes. Changing salinity seriously changed the electricity generation but did not clearly affect the bioremediation performance of the SBES, although at 2.5% salinity the SBES displayed a significantly more efficient removal of nitrogen in the water, compared to the control. Variation of pH to practically extreme levels (5.5 and 8.8) led to increased electricity generations but poorer performances of the SBES (vs. the control) in removing COD and nitrogen. Altogether, the results suggest some distinct responses of the SBES under brackish conditions and imply that COD removal and nitrogen removal in the system are not completely linked to bioelectrochemical processes but electrochemically enriched bacteria can still perform nonbioelectrochemical COD and nitrogen removals more efficiently than natural ones. The results confirm the application potential of the SBES in brackish aquaculture bioremediation and help propose efficient practices to warrant the success of such application in real-life scenarios.
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