Gambogic acid induces apoptotic cell death in T98G glioma cells

Thida, M.,Kim, D.W.,Tran, T.T.T.,Pham, M.Q.,Lee, H.,Kim, I.,Lee, J.W. Pergamon Press 2016 Bioorganic & medicinal chemistry letters Vol.26 No.3

Gambogic acid (GA), a natural product with a xanthone structure, has a broad range of anti-proliferative effects on cancer cell lines. We evaluated GA for its cytotoxic effects on T98G glioblastoma cells. GA exhibited potent anti-proliferative activity and induced apoptosis in T98G glioblastoma cells in a dose-dependent manner. Incubation of cells with GA revealed apoptotic features including increased Bax and AIF expression, cytochrome c release, and cleavage of caspase-3, -8, -9, and PARP, while Bcl-2 expression was downregulated. Furthermore, GA induced reactive oxygen species (ROS) generation in T98G cells. Our results indicate that GA increases Bax- and AIF-associated apoptotic signaling in glioblastoma cells.

The Impact of Government Officials as Outside Directors on Firm Performance

Thida Tun,김봉진 한국경영학회 2015 한국경영학회 통합학술발표논문집 Vol.2015 No.08

Resource dependence theory emphasizes the importance of linking firms with external contingencies that create uncertainty and interdependence (Pfeffer, 1972). A critical source of external interdependency and uncertainty for business is government. No matter what the global trends have changed toward privatization and deregulation, the government regulations and policies still hold enormous impact on the operations of the firms. Almost every aspect of business is shaped by government regulations and policies, which can significantly modify firms’ opportunity sets. One way to link a firm to the government is appointing government officials to the boards of directors. The purpose of this research is to test the effect of government officials as outside directors on firm performance. This research empirically uses and analyzes the samples of Korea’s top companies which were continuously listed in top 500 companies-lists in the website of “Korchambiz” for 5 years (from 2009 to 2013). However, there is an exception for financial institutions, banks, and insurance companies which is difficult to compare and analyze financial statements. We used the dynamic panel regression analysis because of the unavoidable endogenous problem which occurs when the lagged dependent variable is inserted as another explanatory variable in the model (Arellano, 2003; Baltagi, 2008; Greene, 2008). Our results shows that there is a positive relationship between firm performance and the proportion of outside directors, which is aligned with Pearce and Zahra (1992). Also, firm performance will be higher when the firms have higher proportion of government officials as outside directors and CEO with higher tenure. This research is an attempt to understand the corporate governance composition in Korean firms and their effectiveness on firm performance.

Exploring Effectiveness of Official Development Assistance: Comparison Analysis of Developing Countries

( Thida Win ),( Yoon C. Cho ) 재단법인 서암순창장학회 2018 Journal of Marketing Thought Vol.5 No.3

This study examines the effectiveness of foreign aid in developing countries, especially in the healthcare sector. This study also investigates the relationship between foreign aid and infant mortality rate in countries such as Myanmar, Cambodia and Vietnam for 2002 -2015. The empirical results show that there is a negative relationship between foreign aid and infant mortality rate. The foreign aid can be effective with sound governance and lower rate of corruption. Infant mortality rates can be reduced with good sanitation facilities and decreasing numbers of HIV/AIDS sufferers. This study applied regression method for analyzing the relationship and provide policy and managerial implications.

Enhance Classification Accuracy of Wireless Interference Identification by using Transfer Learning

Thida Shwe,Young-June Choi,Rajib Paul 한국통신학회 2020 한국통신학회 학술대회논문집 Vol.2020 No.8

The potential growth of wireless devices from different wireless technologies allocated in 2.4 ㎓ ISM band causes the scarcity of channel resource a severe problem now. Many techniques were used to mitigate the interference occurrence among those different technologies. As the type of solution keeps evolving, Deep Learning has become a popular approach used to solve the interference identification problem lately. In this paper, we try to improve the efficiency of WII classification by adopting a very popular accuracy-enhancing approach namely Transfer Learning (TL) to enhance the interference classification ability of existing WII classification method. The simulation performance of our work proves the significance of TL in the area of wireless signal classification.

Photocatalytic activity enhancement of Dy-doped TiO2 nanoparticles hybrid with TiO2 (B) nanobelts under UV and fluorescence irradiation

Thida San Nwe,Lek Sikong,Rungrote Kokoo,Matthana Khangkhamano 한국물리학회 2020 Current Applied Physics Vol.20 No.2

The main drawbacks of anatase titanium dioxide (TiO2) nanoparticles for being used as a photocatalyst are due to the rapid charge recombination of the electron-hole pairs and the wide band gap energy, limiting its photocatalysis application. To enhance photocatalytic activity, structure modification was performed here. Heterogeneous nanostructure of Dy-doped TiO2 nanoparticles hybrid with Monoclinic TiO2 nanobelts (Dy/TNBs) was fabricated via hydrothermal method. Annealing temperature was varied to investigate its effect on phase composition and morphology of the as-prepared TiO2 catalyst. Phase composition and morphology were studied by XRD and SEM, respectively. The effect of amount of catalyst loaded on the degradation efficiency of methylene blue (MB) dye in aqueous solution under UV and fluorescence illumination was investigated. The results showed that pure monoclinic TiO2 nanobelts (TNBs) was achieved at 450 °C. Enhanced photocatalytic activity under both UV and fluorescence irradiation was found on Dy/TNB samples. The optimum Dy dosage providing the highest MB degradation rates under both irradiation sources was 0.1 mol%.

PUBLIC STATEMENT ON THE MONG TON DAM

Thida Myint 한국신재생에너지학회 2017 AFORE Vol.2017 No.11

Screening and characterization of entomopathogenic fungi for the efficient control of bean bug, Riptortus pedestris

Thida Win,Jin Yong Lee,Hyun Soo Kim,Soo Dong Woo 한국응용곤충학회 2022 한국응용곤충학회 학술대회논문집 Vol.2022 No.04

Exploring Effectiveness of Official Development Assistance Comparison Analysis of Developing Countries

Thida Win,조윤정 재단법인 서암순창장학회 2018 Journal of Marketing Thought Vol.5 No.3

This study examines the effectiveness of foreign aid in developing countries, especially in the healthcare sector. This study also investigates the relationship between foreign aid and infant mortality rate in countries such as Myanmar, Cambodia and Vietnam for 2002 -2015. The empirical results show that there is a negative relationship between foreign aid and infant mortality rate. The foreign aid can be effective with sound governance and lower rate of corruption. Infant mortality rates can be reduced with good sanitation facilities and decreasing numbers of HIV/AIDS sufferers. This study applied regression method for analyzing the relationship and provide policy and managerial implications.

미얀마인 학습자를 위한 한국어 신체 관련관용표현 교육 연구

( Thida Oo Myat ) 한국외국어대학교 외국어교육연구소 2015 외국어교육연구 Vol.29 No.3

관용표현 교육에 있어 중요한 것은 학습자들이 학습 대상인 관용표현을 효율적으로 학습 방법을 알아야 하는 것이다. 즉 관용표현은 문화적인 요소, 역사 적인 요소가 반영되어 있기 때문에 외국인 학습자들이 관용표현을 일상생활에 잘 사용할수 있으면 한국어 실력이 우수하다는 인정을 받을 수 있다. 그래서 본 연구는 한국어와 미얀마어 신체 관련 관용표현을 대조함으로써 미얀마 학습자들이 한국어 관용표현을 학습하는 데 도움이 되고자 한다. 한국어 관용표현 중 구어 및 문어체에 많이 사용하는 표현 즉 빈도수가 높은 신체 관련 관용표현을 연구 대상으로 하였다. 그리고 제시한 양 국 언어 간 관용표현 대조를 통해서 이글의 목적인 교육방안을 제시하였다. 즉 대조를 활용한 교육 방안, 게임을 활용한 교육 방안 그리고 문화 요소를 익히는 교육 방안으로 교육 방법을 제시하였다. 이는 미얀마인 학습자들이 한국어 신체 관련 관용표현을 학습하는 데 효율적이라 생각한다. It is very important fact about Korean language education to develop an effective method of teaching Korean idiomatic expressions which reflect not only culture but history as well. In order to achieve recognition as a learner who is good at in Korean, may know idiomatic expressions and use in daily life. In this paper, firstly comparing Korean and Myanmar idiomatic expressions and in this way help Myanmar students to achieve more effective results while learning Korean language. It focuses on idiomatic expressions related to the body, which often appear in speech and written forms. Then this paper suggested a guiding plan such as the way of comparing Korean and Myanmar idiomatic expressions, the way of using puzzle games and the way of observation about cultural sources on idiomatic expressions. It may help Myanmar students to learn Korean language and understand better the idiomatic expressions.

Software Engineering ; A Retrospective Analysis of Object-Oriented Systems Using Coupling Measurements

Thida Oo,NiLar Thein 한국경영정보학회 2005 한국경영정보학회 학술대회논문집 Vol.2005 No.-