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Thi Binh Nguyen Nguyen,Thi Kieu Diem Nguyen,Van Hue Trương,Thi Tuyet Ngoc Tran,van Bao Thang Phan,Thi Tuyen Nguyen,Hoang Bach Nguyen,Viet Quynh Tram Ngo,Van Tuan Mai,Paola Molicotti 질병관리본부 2023 Osong Public Health and Research Persptectives Vol.14 No.5
Objectives: Tuberculosis (TB) and drug-resistant TB (DR-TB) are national health burdens in Vietnam. In this study, we investigated the prevalence of rifampicin (RIF) and/or isoniazid (isonicotinic acid hydrazide, INH) resistance in patients with suspected TB, and applied appropriate techniques to help rapidly target DR-TB. Methods: In total, 1,547 clinical specimens were collected and cultured using the BACTEC MGIT system (Becton Dickinson and Co.). A resazurin microtiter assay (REMA) was used to determine the proportions of RIF and/or INH resistance. A real-time polymerase chain reaction panel with TaqMan probes was employed to identify the mutations of rpoB and katG associated with DR-TB in clinical isolates. Genotyping of the identified mutations was also performed. Results: A total of 468 Mycobacterium tuberculosis isolates were identified using the REMA. Of these isolates, 106 (22.6%) were found to be resistant to 1 or both antibiotics. Of the resistant isolates, 74 isolates (69.8%) were resistant to isoniazid (INH) only, while 1 isolate (0.94%) was resistant to RIF only. Notably, 31 isolates (29.24%) were resistant to both antibiotics. Of the 41 phenotypically INH-resistant isolates, 19 (46.3%) had the Ser315Thr mutation. There were 8 different rpoB mutations in 22 (68.8%) of the RIF-resistant isolates. The most frequently detected mutations were at codons 531 (37.5%), 526 (18.8%), and 516 (6.3%). Conclusion: To help prevent new cases of DR-TB in Vietnam, it is crucial to gain a comprehensive understanding of the genotypic DR-TB isolates.
Thi Tuyet Mai Nguyen,Thi Thu Nguyen,이현수,준창덕,민병선,김정아 한국생약학회 2017 Natural Product Sciences Vol.23 No.2
The isolation of the MeOH extract from the flower bud of Magnolia biondii Pamp. using various column chromatographies and HPLC led to eleven neoglignan derivatives (1 - 11). Their structures were mainly determined by 1D and 2D NMR spectral data analysis and physiological methods. The isolated compounds (1 - 11) were tested for anti-allergic effects using IL-2 inhibitory assay in Jurkat T cells.
Vo Thi Tuyet Mai,Nguyen Anh Triet,Le Thi Phuong Ngoc,Nguyen Thanh Long 경남대학교 수학교육과 2020 Nonlinear Functional Analysis and Applications Vol.25 No.4
In this paper, we consider the initial boundary value problem for a nonlin-ear Kirchho-Carrier-Love equation. At rst, by combining the linearization method, the Faedo-Galerkin method and the weak compactness method, we prove the local existence anduniqueness of a weak solution. Next, by constructing Lyapunov functional, we establish a blow-up result for solutions with a negative initial energy and give a sucient condition to obtain the exponential decay of weak solutions.
스페이스 마케팅 관점에서의 스포츠전문점의 표현방법에 관한 연구
Nguyen, Thi Tuyet Mai,김동식(Kim, Dongsik) 한국실내디자인학회 2015 한국실내디자인학회 학술대회논문집 Vol.2015 No.5
The purpose of this study was to explore the main strategic elements of space marketing, and then to analyze how commercial store"s components reflected on these space marketing elements on exterior space because exterior space is the first impression piece of information about the store that is observed by the shopper before entry into the store. In order to achieve such purposes, 5 branded sport stores, which are running businesses surrounding Busan National University area were selected and analyzed through a phenomenon research method. Based on the perspective of Space Marketing, six strategic elements were extracted into sensory elements, space elements, differentiated appearance, image-associating element, story-creating element, sense-stimulating space. Together, the exterior"s components were also extracted into 3 parts: architectural components, visual components and display components for examining how they being performed on the above space marketing strategic elements. The results of these detail analysis showed that although brand"s exterior components expressed mostly similarly to each single space marketing strategic elements; However, Nike and Adidas utilized almost exterior"s components to fully express almost single strategic elements of space marketing and also understanding that each brand has their own presentation method to stress out the selected strategic elements from the perspective of space marketing that they considered to be the most important. These differences made their own brands" exterior space differentiated.
Dang, Thi Tuyet Mai,Park, Sung-Jin,Park, Jong-Won,Chung, Dae-Sung,Park, Chan Eon,Kim, Yun-Hi,Kwon, Soon-Ki Wiley Subscription Services, Inc., A Wiley Company 2007 Journal of polymer science Part A, Polymer chemist Vol.45 No.22
<P>Poly{2,6-bis(3-dodecylthiophen-2-yl) benzo[1,2-b;4,5-b′]dithiophene} (PTBT) was synthesized, via oxidative polymerization by oxidative agent (FeCl<SUB>3</SUB>). The mole ratio of FeCl<SUB>3</SUB> and monomer (3.5:1), and keeping low temperature during the dropping of diluted catalyst were very important for the polymerization without crosslinking. The PTBT was confirmed by <SUP>1</SUP>H NMR, FTIR spectra, and elemental analysis. The PTBT has very good solubility in organic solvents such as chloroform, tetrahydrofuran, etc, and good thermal stability with T<SUB>g</SUB> of 164 °C. The PTBT shows UV-optical absorption at 406 nm and photoluminescence (PL) spectroscopy at 504 nm in a film. The highest occupied molecular orbital (HOMO) energy of the polymer is −5.71 eV by measuring cyclic voltammetry (CV). A solution-processed polymer thin film transistor device shows a mobility of 3 × 10<SUP>−5</SUP> – 8 × 10<SUP>−5</SUP> cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP>, and an on/off current ratio of 10<SUP>4</SUP>. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 5277–5284, 2007</P> <B>Graphic Abstract</B> <P>A new poly(benzodithiophene) derivative was designed, synthesized, and characterized. The polymer has very good solubility in organic solvents and good thermal stability with T<SUB>g</SUB> of 164 °C. The polymer shows UV-optical absorption at 406 nm, photoluminescence spectroscopy at 504 nm in a film, and oxidative potential with HOMO level of −5.71 eV. A solution-processed polymer thin film transistor device shows a mobility of 3 × 10<SUP>−5</SUP> to 8 × 10<SUP>−5</SUP> cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP>, and an on/off current ratio of 10<SUP>4</SUP>.</P><P> <img src='wiley_img/0887624X-2007-45-22-POLA22272-gra001.gif' alt='wiley_img/0887624X-2007-45-22-POLA22272-gra001'> </P>
A Study on the Expression Methods of Facade Design from the Perspective of Space Marketing
마이(Nguyen, Thi Tuyet Mai),김동식(Kim, Dongsik) 한국실내디자인학회 2016 한국실내디자인학회논문집 Vol.25 No.4
The purpose of this study was to investigate the influential factors of space marketing, and then to empirically analyze how they were reflected on the facade elements of sports stores. In order to achieve such a purpose, the research was firstly based on the perspective of space marketing to extract various features into 4 types of factors, namely sensuous factors, differentiated external appearance factors, image-associating factors and story-creating factors. Secondly, this study extracted the elements of facade design for sports stores including architectural elements, visual elements and display elements. Thirdly, it clarified the correlation of the influential factors of space marketing with the external space elements of sports stores. Fourthly, the qualitative analysis method was applied to analyze eight selected cases in Busan and eight selected cases in Fukuoka, Japan in order to explore the various different methods of expression of facade design. Lastly, the study found that the stores in Busan mostly take advantage of contrasting effects to deliver a strong visual impression to customers in the sensuous factors. Besides, the facade shapes in Busan were designed to be straight in order to enhance the main doors with its distinguished formative features to maximize the effective expression of the differentiated external factors, along with other expression methods of the image associating and story creating factors. This was done to associate with the brand identity in comparison with the stores in Fukuoka.