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Articles 12241 - 12270 of 15281
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Integration Of A Blended Learning And Extensive Reading Instructional Model For Enhancement Of English Reading Comprehension And Learner Autonomy Of Efl Undergraduate Students, Naruethai Chanthap
Integration Of A Blended Learning And Extensive Reading Instructional Model For Enhancement Of English Reading Comprehension And Learner Autonomy Of Efl Undergraduate Students, Naruethai Chanthap
Chulalongkorn University Theses and Dissertations (Chula ETD)
To be able to read well as well as to manage one's own reading is important because it leads to the development of learner autonomy, which is necessary for learners in the 21st century. The present study investigated the effects of integration of a blended learning and extensive reading instructional model on EFL students' English reading comprehension and learner autonomy. This study employed a one-group, pre-test post-test design to collect both quantitative data and qualitative data. The sample consisted of 40 English major students who enrolled in the Reading for Text Interpretation Course in the first semester of the academic …
Rethinking Inclusive And Sustainable Educational Development For Moken Children, Jason Sanglir
Rethinking Inclusive And Sustainable Educational Development For Moken Children, Jason Sanglir
Chulalongkorn University Theses and Dissertations (Chula ETD)
Despite numerous education readjustments, efforts for equal opportunity in education, and an increase in present enrollment, many indigenous children in Thailand continue to fall behind in the formal education system. This study focuses on the Moken Chao Lay (sea people) communities in southern Thailand and looks to analyze and understand situations and shortcomings of Moken children's education and why they are still underperforming in the formal education system. Traditional ways of knowing, especially knowing through nature, are used as a platform to rethink the way we look at indigenous children's education in Thailand. Interview data was collected from school teachers, …
Selected Appropriate Decision Support Tool For Sustainable Rain-Fed Agriculture Referenced To The New Theory Of His Majesty King Bhumibol Adulyadej The Great: A Case Study Of Khao Wong District, Kalasin Province Of Thailand, Anutra Wannaviroj
Chulalongkorn University Theses and Dissertations (Chula ETD)
Thailand is an agricultural country of which almost 80% of the total agricultural land is rain-fed. An on-farm pond, which is a self-reliant small-scale water source for harvesting the rainwater to be used for the whole year, becomes radical for farmers in this area. These farmers need to select the agricultural water management scheme which uses limited rainwater harvested in the on-farm pond efficiently and productively to fulfill their household needs, which will lead to sustainable rain-fed agriculture. Therefore, the study aimed to select an appropriate decision support tool for sustainable rain-fed agriculture referenced to the New Theory of His …
Comparative Analysis Of Community Solar Projects Between Thailand And Japan, Masataka Yamashita
Comparative Analysis Of Community Solar Projects Between Thailand And Japan, Masataka Yamashita
Chulalongkorn University Theses and Dissertations (Chula ETD)
Community-solar (CS) has appeared as a new solar PV ownership model in the word, in which the business model of CS should vary depending on each country's context. Various unique factors of each country such as the design of the government's support, characteristics of the community, and business custom may have an impact on how community members benefit from CS projects. The objective of this research is to compare the implemented CS projects in Thailand and Japan and to provide policy recommendation on CS for both countries based on comparison for contribution to further development of CS. The selected case …
Management Guidelines For Urban Public Parks: A Case Study Of Lumpini Park, Bangkok, Thailand, Napat Suwannapuk
Management Guidelines For Urban Public Parks: A Case Study Of Lumpini Park, Bangkok, Thailand, Napat Suwannapuk
Chulalongkorn University Theses and Dissertations (Chula ETD)
Bangkok is the capital city of Thailand. It is one of the most primate cities in the world. Bangkok also the center of the country in all areas, being a major source of work and attracts people from across the country, which resulted as population overgrowth, mental illness, pollution, rapid urbanization, and the like. Even though the government succeeds to increase public parks area to be recreation and a lung for the urban dweller's life, but the inconsistency between rules and practices in park management is one of the key factors that hinder Bangkok's sustainable development. In order to explore …
Factors Associated With Attitude Towards Purchasing Intention On Inverter Air Conditioner Among Thai Consumers, Reika Yasunaga
Factors Associated With Attitude Towards Purchasing Intention On Inverter Air Conditioner Among Thai Consumers, Reika Yasunaga
Chulalongkorn University Theses and Dissertations (Chula ETD)
Factors associated with Thai Consumers' attitude towards purchasing intention on higher efficiency Air conditioner (AC) was investigated in this study. Consumers' current preference factors on AC purchasing as well as characteristics of consumers who bought AC during the recent 5 years were firstly investigated by descriptive analysis. Relationship between consumers' purchasing attitude towards higher efficiency AC and their concern on three issues (inverter, information on energy label, and payback period) as well as their knowledge on two issues (inverter and information on energy label) was then analyzed by structural equation modeling (SEM) using data collected from 202 Thai consumers having …
Policy Guideline On Disaster Risk Reduction For Climate Change Adaptation : A Case Of Klong Yan Watershed Resourse Conservation And Rehabilitation Network, Suratthani, Siwaporn Promdaen
Policy Guideline On Disaster Risk Reduction For Climate Change Adaptation : A Case Of Klong Yan Watershed Resourse Conservation And Rehabilitation Network, Suratthani, Siwaporn Promdaen
Chulalongkorn University Theses and Dissertations (Chula ETD)
Thailand is one of South-east Asian countries that have been suffered from extreme events resulting from the impacts of climate change. One consequence of changes is the severity and frequency of extreme events leading to disasters in all regions of Thailand. These effects provided losses and damages at all levels. To solve such problems, water resource management under climate change adaptation has been set up under policy guidelines to reducing the disaster risk from the climate change. The objective of this study is to study the policy guidelines on disaster risk reduction for climate change adaptation on water resource management …
Traditional Ecological Knowledge Of Indigenous Peoples On Climate Change Adaptation : A Case Study Of Sea Nomads “Orang Suku Laut”, Lingga Regency, Riau Islands Province, Indonesia, Wengki Ariando
Chulalongkorn University Theses and Dissertations (Chula ETD)
At the international community, Traditional Ecological Knowledge (TEKs) have been recognized and acknowledged the important roles of indigenous peoples to tackle climate change. The cultural practice, cultural belief and adaptive capacity in managing nature by the Orang Suku Laut (OSL), Indonesian indigenous group who are living as nomads in the sea, would be considered as the key drivers to achieve the effectiveness of climate change adaptation (CCA). This research aimed to study the TEKs of indigenous peoples on CCA of the OSL, Lingga Regency, Riau Islands Province, Indonesia, for appropriate CCA policy implemented at their communities. Data collection was obtained …
Local Knowledge Framework For Sustainable Utilization Of Mangrove Forest : A Case Study Of Klong Khone Sub-District, Mueang District, Samut Songkhram Province, Thailand, Wipapan Adulcharoen
Local Knowledge Framework For Sustainable Utilization Of Mangrove Forest : A Case Study Of Klong Khone Sub-District, Mueang District, Samut Songkhram Province, Thailand, Wipapan Adulcharoen
Chulalongkorn University Theses and Dissertations (Chula ETD)
A development of local knowledge or local knowledge life cycle for locally appropriate sustainable utilization of mangrove ecosystem services was influenced by factors that were specific to ecological and social-cultural conditions and varied relying a change of the targeted mangrove ecosystem services for utilization. This study aims 1) to identify the factors in the local knowledge life cycle during two phases of mangrove stand initiation and young forest regrowth at Klong Khone sub-district, Samut Songkhram province, Thailand and 2) to propose the local knowledge framework for the sustainable utilization of mangrove ecosystem services and lessons learned through the local knowledge …
Tio2 Nanoparticles Coated Forward Osmosis Membranes For Treatment Of Industrial Textile Effluent, Kaung Ko Ko Sint
Tio2 Nanoparticles Coated Forward Osmosis Membranes For Treatment Of Industrial Textile Effluent, Kaung Ko Ko Sint
Chulalongkorn University Theses and Dissertations (Chula ETD)
Textile wastewater occur as demanding water bodies to be treated by membrane separation due to the complex composition and presence of reactive constituents such as heavy metals and salts as well as nutrients, e.g. nitrogen, sulphate and phosphate. Numerous combination of osmosis process with photocatalysts has been experimentally conceived for the water and wastewater treatment and reuse of textile wastewater. The present work was devoted to study the operating feasibility using photocatalyst as TiO2 nano-particles were coated onto two commercially available FO membranes, a cellulose triacetate (CTA) membrane and an aquaporin (AqP) membrane through a specially designed 3-(trimethoxysilyl) propyl methacrylate–polymethyl …
Adsorption And Chemical Cleaning Process Of Anionic And Non-Ionic Surfactants On The Membrane Surface Through The Forward Osmosis Process: Application For Water Reuse, Kaiwit Ruengruehan
Adsorption And Chemical Cleaning Process Of Anionic And Non-Ionic Surfactants On The Membrane Surface Through The Forward Osmosis Process: Application For Water Reuse, Kaiwit Ruengruehan
Chulalongkorn University Theses and Dissertations (Chula ETD)
Forward osmosis (FO) process, an attractive membrane technologies, have been widely studied and applied in many fields to manufacture the clean water. This work, we focused on the fouling behavior and mechanisms of forward osmosis (FO) fouled by sodium dodecyl sulfate (SDS) as anionic surfactants and of nonylphenol ethoxylate (NPE, NP-40) as nonionic surfactant, including cleaning process to recover the system. FO process was run under different operating conditions (cross flow velocity, pH of feed solution, surfactant concentration). In addition, deionized-water (DI), 0.1 M NaCl, and alkaline solution (NaOH) were applied as agents for the cleaning process. The results revealed …
Roles And Regulation Of The Ai-2 Quorum Sensing Of Vibrio Parahaemolyticus In Nitrification Biofilter Of Shrimp Recirculating System., Monchai Pumkaew
Roles And Regulation Of The Ai-2 Quorum Sensing Of Vibrio Parahaemolyticus In Nitrification Biofilter Of Shrimp Recirculating System., Monchai Pumkaew
Chulalongkorn University Theses and Dissertations (Chula ETD)
Thailand is the largest shrimp producing and exporter among Southeast Asia. Up-to-Date, Recirculating Aquaculture System (RAS) have been developed in order to control water quality and enable to conduct intensive cultivation without limitation of land-based cultivation method. Nevertheless, there is concern about pathogenic contamination in Biofilter. Therefore, the role of biofilter in terms of biosecurity is required to study. Recently, shrimp Early Mortality Syndrome (EMS) as known as AHPND/EMS, has spread to shrimp farm in several areas of Thailand. This contributes to severe productivity losses in the shrimp farm industry. It is evident that the causative agent of AHPND disease …
Information Provision And Economic Approach For Promotion Of Plastic Shopping Bag Reduction In Bangkok, Thailand., Nattapat Piromrat
Information Provision And Economic Approach For Promotion Of Plastic Shopping Bag Reduction In Bangkok, Thailand., Nattapat Piromrat
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research aims to study the situations of plastic bag management from stakeholders, current plastic bag use trends, evaluate the effect of information provision and estimate the willingness to pay for plastic bag waste management in Bangkok. Online and field questionnaires had been distributed to collect the data. This study found that the trend of plastic bag use is moderate while most of respondents always reuse their plastic bag. Situations of plastic bag management indicate plastic bags are still distributed for free in the market, but some retailers started not to provide them. The plastic bag production is gradually affected …
Effect Of Operating Conditions On Color And Anions Removal From Textile Industrial Effluent Using Membrane Distillation System, Pyae Phyo Kywe
Effect Of Operating Conditions On Color And Anions Removal From Textile Industrial Effluent Using Membrane Distillation System, Pyae Phyo Kywe
Chulalongkorn University Theses and Dissertations (Chula ETD)
One of the main pollution from textile wastewater is the dyeing wastewater containing color and organic matters. To develop wastewater treatment systems and to reuse the water are still challenged because of the scarcity of water in the world. Among the treatment methods of textile wastewater, membrane distillation was used as the concept of this research. The focus points of the direct contact membrane distillation system are the membrane characteristics, operating parameters (temperature and flow rate) and treatment efficiency. The synthetic dye wastewater (reactive black-5 and reactive blue-19) and real textile effluent were used as the feed wastewater. In this …
Acclimatization And Application Of Biofilters For Nitrogen Removal In Marine Recirculating Shrimp Culture System, Penpicha Satanwat
Acclimatization And Application Of Biofilters For Nitrogen Removal In Marine Recirculating Shrimp Culture System, Penpicha Satanwat
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research involved in the complete nitrogen removal in marine recirculating aquaculture system (RAS) through sequential nitrification and denitrification processes using internal biofilter within a single tank. The study was divided into two experimental parts. The first study was to estimate the effects of salinity (5, 15 and 25 PSU) and stocking density (50 and 100 shrimp m-2) on nitrification and denitrification efficiencies, as well as on microbial diversity in the biofilm. Also, the nitrogen removal efficiencies of fibrous BiocordTM biofilter and Japanese filter mat were compared. Results showed that the nitrification was stimulated in low-salinity (5 PSU) system with …
Study Of Gas-Liquid Mass Transfer In Bubble And Spray Column Adding Solid Media, Kritchart Wongwailikhit
Study Of Gas-Liquid Mass Transfer In Bubble And Spray Column Adding Solid Media, Kritchart Wongwailikhit
Chulalongkorn University Theses and Dissertations (Chula ETD)
Gas absorption is a separation process that transfers substances from gas phase to liquid phases due to the different concentrations. The operation can be applied in many treatments or purifying processes e.g. CO2 absorption from biogas or volatile organic compounds (VOCs) recovery from petroleum emission air. The conventional unit operation using for the gas absorption process are bubble column and spray column. Although there are several literatures reporting the efficiency of spray columns and bubble columns, those were done separately. Therefore, this research projected to investigate both hydrodynamics and mass transfer in both spray and bubble columns and comparing their …
Heavy Metals Adsorption In Simulated Groundwater Using Iron Oxide Particles And Iron Oxide Coated Sand, Ramy Lun
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aimed to understand adsorption mechanisms of single of heavy metals such as Mn, As and Fe and a combined heavy metal in simulated groundwater using iron oxide particles (IOP) and iron oxide coated sands (IOCS). The experiment was conducted in batch test. In order to understand mechanism of heavy metals adsorption, pseudo first-order and pseudo second-order of kinetic, and Langmuir and Freundlich isotherm models were applied by varying adsorbent dosages from 4 to 24 mg/L ,and 10 to 60 min of times. Optimal dosages for single heavy metals and a combined heavy metal removal were 12, 12, 20 …
Influential Factors Of Water Conservation Behaviors In Household: A Case Study Of Condominiums In Bangkok, Thailand, Sutida Sirimungkla
Influential Factors Of Water Conservation Behaviors In Household: A Case Study Of Condominiums In Bangkok, Thailand, Sutida Sirimungkla
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aims to investigate water use and water conservation behaviors of people in condominiums in Bangkok, Thailand, and to determine the most influential factor to the behavioral intention, among attitude, social norm, perceived behavioral control (PBC), and information effect. A questionnaire survey of 210 respondents was conducted in Bangkok Metropolitan area between January - April, 2018. Data was analyzed by descriptive statistic to investigate water conservation behaviors and Structural Equation Model (SEM) to examine the determinants of intention to perform the everyday water conservation behaviors and to install water saving devices. The results indicate that two top practices rate …
Plastic Waste Utilization As Macro Fiber In Concrete, Artid Poonyakan
Plastic Waste Utilization As Macro Fiber In Concrete, Artid Poonyakan
Chulalongkorn University Theses and Dissertations (Chula ETD)
The use of plastics has increased over the years, thus resulting in a large volume of plastic waste being generated and accumulated in the environment. Due to its non-biodegradability and persistence, recycling processes have become one of the sustainable solutions for preventing environmental deterioration. Plastic wastes, including high density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP), and polyethylene terephthalate (PET), were collected from industrial sector and used as additional ingredients (macro fiber) to improve mortar properties. Prior to mortar processing, an increase in wettability of plastic fibers using nonionic surfactant, Dehydol LS-12, was investigated. At the optimal concentration of …
Health Risk Assessment Of Inhalation And Dermal Exposure To Particle-Bound Polycyclic Aromatic Hydrocarbons Of E-Waste Dismantling Workers In Buriram Province, Thailand, Sarasanant Bungadaeng
Health Risk Assessment Of Inhalation And Dermal Exposure To Particle-Bound Polycyclic Aromatic Hydrocarbons Of E-Waste Dismantling Workers In Buriram Province, Thailand, Sarasanant Bungadaeng
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research mainly studied on the inhalation and dermal exposure concentrations of particle-bound polycyclic aromatic hydrocarbon (PAHs) that e-waste burning workers probably received during their work and further estimated the health risk assessment in both route of exposure. According to the obtained results, the total concentrations of PAHs on PM₂.₅-₁₀ ranged from 0.0703 to 20.9800 μg/m³. For PM₂.₅, the total concentrations of PAHs varied from 0.2669 to 89.9645 μg/m³. In the dermal dust samples, the total concentrations of PAHs on the particles before burning work ranged from 8.1072 to 253.6118 mg/kg with the average concentration at 95.3894 mg/kg. For the …
System Dynamics Analysis On Municipal Solid Waste Management Under Flooding : Case Study Bangkok, Thailand, Nuchcha Phonphoton
System Dynamics Analysis On Municipal Solid Waste Management Under Flooding : Case Study Bangkok, Thailand, Nuchcha Phonphoton
Chulalongkorn University Theses and Dissertations (Chula ETD)
The municipal solid waste management service system has been one of the key service provisions to indicate the sustainability of the city as defined in Sustainable Development Goals - SDGs #11. Complex linkages of stock and flow within the system are impacted by waste quantities and spatial characteristics. The complex characteristics make it difficult to design a sustainable management system, particularly in case of a disaster. Flooding is a major natural disaster in many regions of the world and poses a challenge as an external disturbance that can affect any part of the waste management system. Flood mitigation plans are …
Conversion Of Waste Chicken Fat To Liquid Fuel On Coal Fly Ash Catalyst By Catalytic Cracking, Phorndranrat Suchamalawong
Conversion Of Waste Chicken Fat To Liquid Fuel On Coal Fly Ash Catalyst By Catalytic Cracking, Phorndranrat Suchamalawong
Chulalongkorn University Theses and Dissertations (Chula ETD)
In this research work, a study on the catalytic cracking of waste chicken fat (WCF) on fly ash to liquid fuels and using 2k factorial design to determine the influence of parameters on liquid yield, naphtha and diesel content was investigated. The research was divided into 2 parts. First, the experiment was carried out in a batch lab scale reactor of 70 mL. The objectives are to determine the influence of parameters that affected the %yield of liquid product naphtha and diesel–liked fuels at the operating conditions of temperature range of 420 - 460 ˚C, reaction time 45-75 minutes, initial …
Comparison Of The Accuracy Between Digital And Conventional Impression In Different Multiple Implant Angles At Posterior Mandibular Region Using Innovation 3d Super Imposition Software Program; In Vitro Study, Arisa Hongsopa
Chulalongkorn University Theses and Dissertations (Chula ETD)
Statement of problem: This study aims to compare the accuracy of three-dimensional changes in position and angulation between digital and conventional impression techniques in different angulated implants at the mandibular partial edentulous area with the use of a mandibular partial edentulous reference model with 4 dental implants in different angulations (15 degrees buccally,lingually, mesially, and distally). Conventional and digital impression techniques were used for master model and fabricated 15 conventional master casts and 15 three dimensional printing models. Each scan body was connected with implant or analog to transfer implant positions. All of the master model, master casts, and printing …
Ecological Impacts Of Fishing Gears In Ko Chang, Trat Province, Thailand, Wichin Suebpala
Ecological Impacts Of Fishing Gears In Ko Chang, Trat Province, Thailand, Wichin Suebpala
Chulalongkorn University Theses and Dissertations (Chula ETD)
Knowledge of ecological impacts of fishing, especially in small-scale sector, is not always readily available, making it difficult to employ an ecosystem-based approach to fisheries management and to achieve sustainability. The topic of this dissertation was formulated with the aim to enhance this knowledge through conducting researches in Mu Ko Chang, Trat Province, the Eastern Gulf of Thailand. This study focuses on two main types of impacts, i.e. bycatch and habitat damages, consisting of three research modules: 1) assessing existing knowledge and analyzing the knowledge gap regarding bycatch and habitat impacts of fishing methods in Thai waters; 2) investigating fishing …
Using Of Low Modulus Of Elasticity Base In High C-Factor Resin Composite Restoration: An In Vitro Study, Jomnang Yoohun
Using Of Low Modulus Of Elasticity Base In High C-Factor Resin Composite Restoration: An In Vitro Study, Jomnang Yoohun
Chulalongkorn University Theses and Dissertations (Chula ETD)
This in vitro study aims to investigate whether or not using a resin modified glass ionomer as a base or intermediate layer would improve marginal integrity of a high C-factor class V resin composite restoration. Eighty non-carious human third molars were used. A box-shaped, 5x3x2.5 mm3, Class V cavity preparation was placed on buccal surface at the cementoenamel junction. Teeth were then randomly assigned to 8 experimental groups (n=10): group 1, Resin composite (FiltekTM Z350 XT); group 2, FiltekTM Bulkfill; groups 3 and 4, resin composite with FiltekTM Z350 XT Flowable as base; groups 5 and 6, resin composite with …
Comparison Of Three Dimensional Accuracy For Surgical Guided Template Fabrication Using Two Different Implant Planning Software Programs, Natchaya Thitaphanich
Comparison Of Three Dimensional Accuracy For Surgical Guided Template Fabrication Using Two Different Implant Planning Software Programs, Natchaya Thitaphanich
Chulalongkorn University Theses and Dissertations (Chula ETD)
Statement of problem: Static computer-assisted implantation system (s-CAIS) has been introduced to implant dentistry for decades. According to previous studies, they were recognised the inaccuracies of actual implant position placed via using static computer-assisted implantation system. These inaccuracies result from an accumulation of every step in the workflow from planning to accuracy assessment. Recently, there are multiple implant planning softwares available. coDiagnostiXTM software and Implant StudioTM software are widely used third-party implant planning softwares which claimed to provide predictable implant placement outcome. However, the effect of softwares used on accuracy of guided surgery in anterior maxilla region has not been …
Fracture Resistance Of Endodontically Treated Premolars With Deep Cervical Lesion Restored With And Without Post In Different Restorations, Phrohphrim Suebsawadphatthana
Fracture Resistance Of Endodontically Treated Premolars With Deep Cervical Lesion Restored With And Without Post In Different Restorations, Phrohphrim Suebsawadphatthana
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objectives: The purpose of this study was to evaluate the effects of fiber posts and different restorations on the fracture resistance of endodontically treated maxillary premolars with cervical cavities. Methods: In forty extracted human first maxillary premolars, cervical cavities were prepared simulating cervical lesions and randomly divided into four groups (n=10): COM-NP, endodontically treated teeth (ETT) restored with resin composite without fiber posts; ON-NP, ETT restored with CAD/CAM ceramic onlays without fiber posts; COM-P, ETT restored with resin composite and fiber posts; and CR-P, ETT restored with CAD/CAM ceramic crowns and fiber posts. After the fiber posts and restorations had …
Comparison Of Microtensile Bond Strength Of Universal Adhesives Utilizing Various Application Methods: An In Vitro Study, Suthatta Jeansuwannagorn
Comparison Of Microtensile Bond Strength Of Universal Adhesives Utilizing Various Application Methods: An In Vitro Study, Suthatta Jeansuwannagorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Purpose: To investigate microtensile bond strength (μTBS) of a conventional three-step etch and rinse, and universal adhesive systems with etch and rinse mode utilizing various application methods at 24 hour and after 6 month water-storage. Material and methods: Seventy-two extracted human third molars were cut to expose a flat dentin surface. Optibond FL (OFL; Kerr, USA), Single Bond Universal (SU; 3M ESPE, USA), Clearfil Universal Bond Quick (CU; Kuraray Noritake Dental Inc., Japan), G-Premio BOND (GP; GC Corporation, Japan), Prime&Bond Universal (PB; Dentsply, Germany) were used in etch and rinse mode following the manufacturers' instruction and double application method. Subsequently, …
Relationship Between Maxillary Anterior Alveolar Arch Form And Tooth Root Axis In Class I Occlusion: A Cone Beam Computed Tomography Study, Suweera Petaibunlue
Relationship Between Maxillary Anterior Alveolar Arch Form And Tooth Root Axis In Class I Occlusion: A Cone Beam Computed Tomography Study, Suweera Petaibunlue
Chulalongkorn University Theses and Dissertations (Chula ETD)
Purpose: This study determined the relationships of the angulation between tooth root axis and alveolar bone axis to the anterior alveolar (AA) arch forms and the sagittal root position (SRP) classification in anterior esthetic region using cone-beam computed tomography (CBCT) images.
Materials and Methods: CBCT images which met the inclusion and exclusion criteria were classified according to a novel classification of AA arch forms (Bulyalert 2018) and a SRP classification (Kan 2011). Then, the angulations of the root axis and the alveolar bone axis were measured using the mid-sagittal CBCT images of each tooth. The relationship of the angulations in …
Mutual Fund Performance And Persistence Evaluationevidence From Thai Local And Foreign Luxembourg Ucits, Bruno Fourquin
Mutual Fund Performance And Persistence Evaluationevidence From Thai Local And Foreign Luxembourg Ucits, Bruno Fourquin
Chulalongkorn University Theses and Dissertations (Chula ETD)
This paper aims to compare the performance and persistence of equity Mutual Funds between Luxembourg equity UCITS (Undertakings for Collective Investment in Transferable Securities) and Thai equity Funds that are investing a minimum of 90% of their total portfolio in Thai equity market during a 5 years period (May 2013- April 2018). The tests are conducted via (i) static or unconditional measures including the Sharpe, Treynor, Jensen ratios; (ii) dynamic or conditional measures using Treynor-Mazuy, K. Shukla and Gregory B. van Inwegen indicators; (iii) control - robustness measures with Brown and Goetzmann, Murthi et al. performance persistence indices. The paper …