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The Validity And Reliability Of The Patient Health Questionnaire 9 In Screening Poststroke Depression, Piyapat Dajpratham
The Validity And Reliability Of The Patient Health Questionnaire 9 In Screening Poststroke Depression, Piyapat Dajpratham
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Poststroke depression occurred about 30% during the first five years after stroke. Timely diagnosis and management could facilitate motor recovery and improve independence. The Patient Health Questionnaire 9 (PHQ-9) is one of the best screening tools for poststroke depression. Since specific screening tool has not yet presented in Thailand, the validity and reliability of the PHQ-9 in stroke patients is clinically essential. Objectives: To study the criterion validity and reliability of the PHQ-9 (Thai version) in screening poststroke depression by comparing to the psychiatric interview as the gold standard. Material and Methods: First ever stroke patients age 45 years …
Significant Coronary Artery Stenosis Assessment: Diagnostic Accuracy Of Quantitative 4d-Mspect Stress Radionuclide Myocardial Perfusion Imaging, Tarit Taerakul
Significant Coronary Artery Stenosis Assessment: Diagnostic Accuracy Of Quantitative 4d-Mspect Stress Radionuclide Myocardial Perfusion Imaging, Tarit Taerakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
OBJECTIVES: The objective of this study was to evaluate the effectiveness of quantitative assessment of radionuclide myocardial perfusion imaging in indicating significant coronary artery stenosis. METHODS: Seven hundred and twenty patients with suspicion of coronary artery disease were retrospectively identified. All of them had undergone cardiac catheterization within the 6-month period after having one-day pharmacologic stress radionuclide myocardial perfusion scan. Important parameters were analyzed including myocardial perfusion, wall motion, wall thickening severity scores of 3 coronary artery territories and left ventricular ejection fraction values. These parameters were subsequently compared with the results of gold standard cardiac catheterization. RESULTS: Binary logistic …
Caring For Patients With Drug Use Disorders In Yangon Region, Myanmar : Socioeconomic And Psychological Burden And Coping Strategies, Khin Zar Khaing Thein
Caring For Patients With Drug Use Disorders In Yangon Region, Myanmar : Socioeconomic And Psychological Burden And Coping Strategies, Khin Zar Khaing Thein
Chulalongkorn University Theses and Dissertations (Chula ETD)
Drug use disorders are considered chronic illnesses, like other severe mental disorders, and caregivers of drug users face a large impact on various aspects of their life. However, there is shortage of research in Myanmar about caregivers' experiences with caring for patients with drug use disorders. This mixed method study, therefore, aims at exploring the socioeconomic and psychological burden caregivers carry, the coping strategies they employ, as well as the barriers to coping they face. The results of the framework analysis revealed that financial loss, productivity loss, social limitation and negative impact on family members are important dimensions of socioeconomic …
System Dynamics Analysis Of Sugar-Sweetened Beverage Taxing Effect On Sugar Consumption, Dental Health Service Utilization And Oral Health For Thai Adults And Elderly, Nipaporn Urwannachotima
System Dynamics Analysis Of Sugar-Sweetened Beverage Taxing Effect On Sugar Consumption, Dental Health Service Utilization And Oral Health For Thai Adults And Elderly, Nipaporn Urwannachotima
Chulalongkorn University Theses and Dissertations (Chula ETD)
Dental caries is a major oral health problem, particularly among developing countries. Almost half of Thai adults and elderly have at least one untreated dental caries. Dental caries can result in debilitating pain that affects work productivity and even the performance of daily activities. The objectives of this study are to develop system dynamics model addressing the relationship of dental caries, sugar consumption and dental health service utilization of Thai population aged 15 and older; and to estimate the changes of dental caries prevalence when the sugar-sweetened beverage tax is implemented. A multi-sector system dynamics model was developed to consolidate …
Effects Of Surfactants And Thickness Of Carbon Nanotube Film On Conductive Property For Touch Screen, Thimaporn Channarong
Effects Of Surfactants And Thickness Of Carbon Nanotube Film On Conductive Property For Touch Screen, Thimaporn Channarong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Conductive transparent film technology has been developed extensively for electronic industry such as touch panel and so on. In this study, single-wall carbon nanotubes (SWCNTs) was chosen to disperse in acrylic resin and homogenized by surfactant. The dispersion of SWNCT is one of the key factors that strongly influences the properties of these products. Thus Hydrocarbon and Silicone surfactant types were compared. The wire-bar coating technique was used to produce a conductive film PET base. Our objectives were to study the effects of surfactants and thickness of SWCNT film on conductivity and transparency. Surfactant concentration was varied 0.1 – 2.0 …
Simulation Model For Outbound Logistics In Quarry Business, Chanyakan Chawaranggoon
Simulation Model For Outbound Logistics In Quarry Business, Chanyakan Chawaranggoon
Chulalongkorn University Theses and Dissertations (Chula ETD)
The study of outbound logistics is part of quarrying process where final products are being served to customers. It includes all activities begins from when a truck entering weight station to when the truck leaves the system after a final weighing. An increasing of customer demands within limited serving space and limited resources cause a higher total flow time customer spent in the system which also leads to longer queues. The study aims to simulate a current outbound logistics for a quarry business using ARENA simulation model and analyze truck queueing and loader scheduling policy that help reduce total flow …
Improving Raw Materials Warehouse Utilization And Efficiency In A Haircare Manufacturer, Chariya Paveenchana
Improving Raw Materials Warehouse Utilization And Efficiency In A Haircare Manufacturer, Chariya Paveenchana
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aims to improve the capacity, efficiency, and utilization of raw materials warehouse in a case study of haircare manufacturer in Thailand. At the same time, it is our goal to save the storage cost of finished products at the external public warehouse by locating some of the finished products at this internal raw materials warehouse. The key methodologies used to improve the current raw materials warehouse are removing obsolete materials from the warehouse, regrouping materials according to types, sizes, and turnover rates, reallocating space for each group of materials, considering beam height adjustment, and reassigning the location for …
Defect Reduction In Manufacturing Process Of In-Mold Decoration Of Injection Molded Components, Jintra Supapan
Defect Reduction In Manufacturing Process Of In-Mold Decoration Of Injection Molded Components, Jintra Supapan
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purpose of this research is to reduce the defect rate from manufacturing process of in-mould decoration (IMD), a process combining PET film with decorative patterns are moulded together with ABS resins, which has been developed to reduce the secondary process of decorative screen printing. Recently, the case study company has produced components with a high defect rate average 11.43% in Feb-Jun 2018, which increased sharply to 22.3% in June 2018. The major causes of the defect resulting from PET film peeled off and difficult to assembly. In order to reduce the defect rate, the five steps of the DMAIC …
Development Of An International Curriculum Model In Education Management For Vietnam Higher Education Institutions, Thi My Ngoc Nguyen
Development Of An International Curriculum Model In Education Management For Vietnam Higher Education Institutions, Thi My Ngoc Nguyen
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purposes of this research are (1) to investigate the current state and the need for internationalization of curriculum of Master Degree in Education Management for Vietnam higher education institutions (2) to analyze good practices for the internationalization of curriculum of Master Degree in Education Management in international universities, (3) to develop an international curriculum management model for Vietnam higher education institutions. The samples include (1) seven policy makers at national and institutional level (2) five administrators at faculty level (3) 67 faculty members, and (4) 217 students from five Vietnamese higher education institutions offering Master Degree in Education Management. …
Periodic-Review Order Policy For A Two-Echelon Inventory Problem With Seasonal Demand, Noppadon Sakulsom
Periodic-Review Order Policy For A Two-Echelon Inventory Problem With Seasonal Demand, Noppadon Sakulsom
Chulalongkorn University Theses and Dissertations (Chula ETD)
This dissertation presents methodologies to determine ordering policies for a 2-echelon inventory system with multiple replenishing modes under seasonal demand. The system operates on periodic review basis using reorder point and order-up-to point or (R,s,S). An Echelon stock concept is applied where each location makes decisions on its own inventory information and the information of all locations downstream. We decompose a problem into two phases and propose a methodology based on mixed-integer programming models to determine ordering policies for a system with one replenishing mode. Then, another methodology based on the genetic algorithm and binary search is developed to solve …
Forecasting International Tourist Arrivals From Major Countries To Thailand, Ontheera Hwandee
Forecasting International Tourist Arrivals From Major Countries To Thailand, Ontheera Hwandee
Chulalongkorn University Theses and Dissertations (Chula ETD)
Tourism industry is one of industries that are very important for Thai economy. In order to achieve effective marketing and resource planning, accurate forecasting of tourist arrivals from major countries to Thailand is necessary for Thai tourism industry. In this paper, various forecasting models are explored to forecast monthly tourist arrivals from China, Malaysia, Korea, Japan, Russia, UK and US. The proposed models include both time series models, i.e., SARIMA, Holt-Winter, and explanatory models, i.e., Multiple Regression and Feed Forward Artificial Neural Networks (FANNs). Economic factors such as income, relative price, exchange rates, and dummy variables of seasonality and news …
Forecasting Hotel Daily Occupancy For High-Frequency And Complex Seasonality Data, Phoom Ungtrakul
Forecasting Hotel Daily Occupancy For High-Frequency And Complex Seasonality Data, Phoom Ungtrakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Accurate hotel daily occupancy forecasting is an important input for hotel revenue management. This research presents forecasting models both time series and causal methods for a case study 4-star hotel in Phuket, Thailand. Holt-Winters, Box-Jenkins, Box-Cox transformation, ARMA errors, trend and multiple seasonal patterns (BATS), Trigonometric BATS (TBATS), back-propagation Neural Network (BPNN), and Support Vector Regression (SVR) are explored in this work, where Same Day Last Year is considered as benchmark forecast. For causal method, independent variables used as regressor inputs are transformed data observed in the past periods, the number of tourist arrivals from main countries to Phuket, Oil …
Designing Modular Fixture For Automotive Condenser Inspection, Tanest Lertkajornkitti
Designing Modular Fixture For Automotive Condenser Inspection, Tanest Lertkajornkitti
Chulalongkorn University Theses and Dissertations (Chula ETD)
In the automotive component manufacturing industry, the automotive parts must be produced with high precision according to the standard. And, to achieve such a goal, inspection fixtures are typically used as final inspection tools. These fixtures are highly specialized that often match only one stock-keeping unit of the condenser (SKU) each. Based on such a fact, as the number of SKUs rises, the number of fixtures produced would be inevitably increased, along with the resources required for fixture production, storage space, and maintenance. In order to address such issues, we explore and develop a new fixture design that turns specialized …
Steady-State Determination Of Continuous Powder Mixing By Near Infrared Spectroscopy As Process Analytical Technology, Katesaraporn Wongves
Steady-State Determination Of Continuous Powder Mixing By Near Infrared Spectroscopy As Process Analytical Technology, Katesaraporn Wongves
Chulalongkorn University Theses and Dissertations (Chula ETD)
Powder mixing is one of an important unit operation in pharmaceutical manufacturing of solid dosage forms. Continuous mixing was developed as an alternative method to reduce disadvantages of traditional batch mixing processes. This process was originally developed using horizontal cylindrical mixer equipped with Process Analytical Technology (PAT) tools for real-time monitoring. In the present study, a vertical cylindrical mixer was developed and evaluated. Near Infrared (NIR) spectra obtained by monitoring the mixing process were pretreated with Multiplicative Scatter Correction (MSC), second derivative treatment and Norris-William smoothing in the 6800 - 8700 cm-1 range before a calibration model using PLS was …
Preparation And Stabilization Of Saccharide Fiber Produced By Centrifugal Spinning, Pattama Donghuntong
Preparation And Stabilization Of Saccharide Fiber Produced By Centrifugal Spinning, Pattama Donghuntong
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this study were to prepare saccharide fiber via centrifugal spinning and further investigate its stability under stress condition. Different saccharides were chosen and spun via centrifugal force to form thread like matter. The results indicated that sucrose (SC) and trehalose (TH) could be fabricated as fiber whereas other saccharides were not able to form. The formation of fiber mainly involved with glass transition temperature (Tg), molten ability including stability of saccharide after melting. High Tg saccharides were a good candidate on fiber preparation. Homogeneous melting with appreciable stability was another factor affecting on fiber preparation. Decomposing after …
Explaining Barriers And Opportunities For Recycled Pet For Food Packaging In Thailand Through The Lenses Of Organizational Environment Theory, Natawadee Sirithorn
Explaining Barriers And Opportunities For Recycled Pet For Food Packaging In Thailand Through The Lenses Of Organizational Environment Theory, Natawadee Sirithorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Currently, some plastic-related companies propose a solution of recycled plastic (rPET) for food packaging as a solution for the plastic problem in Thailand. Therefore, the objective of the thesis is to study business behavior in order to understand the rationale of why some company needs to use rPET for food packaging. This study combined two theories which are the organizational environment theory and the institutional theory of CSR to analyze the effect of the internal and the external environment that influence companies to support rPET food packaging. The finding indicates that companies' mission creates an influence on companies to promote …
Stakeholder Analysis Of Socioeconomic Impacts On Chiang Rai-Chiang Khong Rail Project In Chiang Rai Province, Tanthita Sukhopala
Stakeholder Analysis Of Socioeconomic Impacts On Chiang Rai-Chiang Khong Rail Project In Chiang Rai Province, Tanthita Sukhopala
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this research are (1) to study the impacts of Chiang Rai - Chiang Khong rail project on Chiang Rai provinces, especially the social and economic impacts which are caused by the rail project, positively and negatively and (2) to analyze advantages and disadvantages of Chiang Rai - Chiang Khong rail project on Chiang Rai province. The scope of study covers 2 main areas including (1) the search for different impacts in 3 different train station areas and (2) the search for different impacts between local people who live within 5 kilometers of the area where train station …
Chin Diaspora And Their Social Networks In Thailand : Implications For Development In Myanmar, Pau Sian Lian
Chin Diaspora And Their Social Networks In Thailand : Implications For Development In Myanmar, Pau Sian Lian
Chulalongkorn University Theses and Dissertations (Chula ETD)
Due to socioeconomic and political reasons, Chin ethnic people from the western part of Myanmar have been migrating to inner part of the country and abroad. Economic growth and requirement of low skill labor in Thailand since the 1980s have been the pull factors for low skill migrants from its neighbors, including Myanmar. Chin people came to Thailand not only for economic opportunities but also for onward migration. The purpose of this research is to explore the social networks of Chin diaspora in Thailand and their implication to the economic and political development of their home community in Myanmar. With …
Internal Migrant Children And Their Access To Education : A Case Study Of Hlaing Thar Yar Township, Yangon, Myanmar, Thazin Lin Thet Maw
Internal Migrant Children And Their Access To Education : A Case Study Of Hlaing Thar Yar Township, Yangon, Myanmar, Thazin Lin Thet Maw
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research explores the accessibility of primary education for children of migrant families within Myanmar, focusing on children who accompanied their families when they have to move to a new location. In doing so, this research analyzes the issues faced by rural-to-urban migrant children in the process of primary school enrollment. The study also reviews Myanmar's National Education Strategic Plan (2016-2021) to understand the provisions and practices implemented by the government to address the challenges of migrant children's access to primary education. The research was conducted in Hlaing Thar Yar Township in Yangon, Myanmar, which is an area characterized by …
Women Political Participation In MyanmarS House Of Representatives, Thu Thu Swe
Women Political Participation In MyanmarS House Of Representatives, Thu Thu Swe
Chulalongkorn University Theses and Dissertations (Chula ETD)
The thesis mainly discusses about main obstacles and challenges for women to participate in political activities in Myanmar including economic factor, social factor, political factor, and the ways how women are empowered to participate in political activities in Myanmar by using both primary and secondary data. The primary concept for this study is based on women empowerment processes which are included four different pathways in which women are changed –material (economy), perceptual (knowledge and skill), cognitive (self-confident and self-esteemed) and relational (bargaining power). Moreover, the thesis analyses actor's roles in these four pathways. The thesis found out external factors namely …
Ulaanbaatar's Ger District Residents: An Analysis Of Development Challenges And Structural Violence, Timothy Shaun Jenkins
Ulaanbaatar's Ger District Residents: An Analysis Of Development Challenges And Structural Violence, Timothy Shaun Jenkins
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study investigates and researches the impact of the Government's policy of putting the 'economy first' by analyzing the situation through the lens of Johan Galtung's concept of Structural Violence. The research answers the question: How does structural violence occur in the ger districts of Ulaanbaatar under the current development challenges? In the 1990's, after the fall of communism, the IMF and the World Bank, along with some leading political figures within the Government of Mongolia, pushed forward with their plans to bring the free market to Mongolia. The World Bank and the IMF introduced the shock-therapy approach with the …
Role Of E-Commerce On Trading Sector In China, Jinyi Li
Role Of E-Commerce On Trading Sector In China, Jinyi Li
Chulalongkorn University Theses and Dissertations (Chula ETD)
E-commerce is rapidly developing along with the development of information technology in China. This paper is aimed at analyzing the contribution of E-commerce on the trading sector in China and estimating the macroeconomic and sectoral impact of E-commerce respectively by using fixed effect panel data based on the data from seven selected regions in China over the period of 2008-2016. The study found that E-commerce plays a significant and positive role in the economic growth at either macroeconomic level or sectoral level. Every 1 percent increase in E-commerce's sale leads to an increase of 0.54 percent in the output in …
Economic Security And Development: The Impacts Of Inca Inchi Contract-Farming As An Agricultural Business Model In Kachin State, Myanmar, Zaw Ban
Chulalongkorn University Theses and Dissertations (Chula ETD)
In Myanmar, Inca Inchi is one of the new economic businesses that made changes to the agriculture sector with both its advantages to the quality of life of the people and a high selling price which generates an economic benefit. This study tries to explore the overall social and economic impact that Inca Inchi contract-farming as a business model has had on the security and development specifically for the farmers who signed the contracts with the Inca Inchi companies in the Kachin state, Myanmar. Sample size in Myitkyina Township represented total population. Quantitative data collection method based on primary data …
The Relationship Between Fdi And Employment In China's Manufacturing Industry, Ruoheng Wang
The Relationship Between Fdi And Employment In China's Manufacturing Industry, Ruoheng Wang
Chulalongkorn University Theses and Dissertations (Chula ETD)
China has achieved rapid economic growth after reforming and opening up, becoming the second largest economy after the United States. At the same time, China began to attract foreign direct investment, and the scale of foreign direct investment has been becoming larger and larger. It's obvious that FDI has played a crucial role in promoting China's economic growth. But China is a country with a big population, the employment problem is the most direct and realistic problem. Although overall employment is increasing in China, the speed of employment growth in the manufacturing industry is very low. After all, the manufacturing …
Assessing Impacts Of Fta In Thailand With Special Emphasis On Trade Creation And Trade Diversion, Sawasdee Charoenchang
Assessing Impacts Of Fta In Thailand With Special Emphasis On Trade Creation And Trade Diversion, Sawasdee Charoenchang
Chulalongkorn University Theses and Dissertations (Chula ETD)
This paper uses ex-post gravity analysis to examine whether Thailand's 12 effective free trade agreements cause trade creation or trade diversion effect. The sample of the study covers 43 countries over the period of 1991-2016. The model is specified with the aim to obtain unbiased estimates of three FTA dummy variables, representing trades within and outside the trade blocs. This study is able to analyze only 7 out of 12 total FTAs due to multicollinearity problem. The results of this study show that AFTA has trade creation effects on international trade of Thailand with little diversion effects on exports. We …
An Empirical Study Of Human Capital On Economic Growth: An Investigation Using Three Indices Of Human Capital, Shan Shan Fu
An Empirical Study Of Human Capital On Economic Growth: An Investigation Using Three Indices Of Human Capital, Shan Shan Fu
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research reexamines the augmented Solow's growth model to find the relationship between human capital and economic growth by using three different proxies for human capital. The first proxy of human capital is the proportion of labor force with secondary education that has been widely used in many studies. PISA score is the second proxy to human capital. It is regarded as being quality of education because this standardized test score could directly reflect the cognitive ability of individuals. The third proxy is the human capital index constructed by Penn's World Table 9.0 that included both quantitative and qualitative aspects …
Role Of Global Production Networks On Development Of Automotive Industry In Selected Asean Countries, Wachara Jongkraijak
Role Of Global Production Networks On Development Of Automotive Industry In Selected Asean Countries, Wachara Jongkraijak
Chulalongkorn University Theses and Dissertations (Chula ETD)
This paper investigates the impact of Global Production Networks (GPNs) on the industrial development in 3 aspects; domestic value added, labor productivity, and export performance, employing Trade in Value Added database at the country-sector level from Organization for Economic Cooperation and Development (OECD). The estimation is based on pooled time series, cross section and period fixed effect covering Automotive industry in 4 selected ASEAN countries; Thailand, Indonesia, Malaysia, and Philippines from 1995 to 2016. The results suggest that Thailand can exploit the benefit from GPNs through task specialization and economies of scales, at the same time expanding the domestic capacity. …
Key Success Factors Of Starbucks Coffee In South Korea, Chandhit Sawangnate
Key Success Factors Of Starbucks Coffee In South Korea, Chandhit Sawangnate
Chulalongkorn University Theses and Dissertations (Chula ETD)
Food and beverage is one of the industries that have been contributing economic growth toward South Korea economy for a decades; however, coffee market due to a relatively high competition and fierceness, coffee war, between international brands and local brands. This paper is trying to find the key success factors of Starbucks through various dimensions in South Korea market. This study is in order to find competitive advantages of Starbucks internationally and domestically. Observation is also held to find an insight data. The outcome shows that Korean coffee market has strength in it character conditions. The coffee quality and coffee …
The Volatility Comovement Among Stock Markets In East Asian Countries, Weijie Yu
The Volatility Comovement Among Stock Markets In East Asian Countries, Weijie Yu
Chulalongkorn University Theses and Dissertations (Chula ETD)
Using daily indices for several East Asian and Asian emerging stock markets from 5 January 1995 to 31 December 2018, this study investigates the volatility comovement of the stock market returns in using the DCC-MGARCH model. The empirical results depict that the volatility comovement among East Asian stock markets have increased in recent years. Moreover, this correlation is stronger in the developed markets of Singapore, Hong Kong, Japan and Korea. Volatility comovement across emerging countries, namely, China, India, Thailand, Indonesia, Malaysia and Philippines, has also increased. This study also examines the volatility spillover effects in East Asia at different stages …
Juche Realist Music : The Politicization Of Music In North Korea, Jungmin Heo
Juche Realist Music : The Politicization Of Music In North Korea, Jungmin Heo
Chulalongkorn University Theses and Dissertations (Chula ETD)
In North Korea, music and songs have extensively been used as an effective political tool of state propaganda. Unlike previous research which overlooks the contents of the songs, this thesis examines how their lyrics reflect political ideologies and propaganda operation of North Korean regimes. Their lyrics are analyzed in light of the historical context they were written in and widely perceived. It aims at contributing to the knowledge of North Korean music and its relationship with the politics of the country. The study analyzes the lyrics of 100 North Korean songs from 4 different sources using qualitative contents analysis. The …