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"Factors Associated With Knowledge, Attitude And Practice (Kap) Towards The Prevention Of Type 2 Diabetes Mellitus Among The Middle-Aged Group Adults In Dhaka City, Bangladesh : A Cross-Sectional Study", Sabrina Rahman
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Type 2 Diabetes Mellitus has emerged as a critical public health challenge in Bangladesh, particularly in urban areas, like Dhaka city, due to rapid urbanization, sedentary lifestyles, dietary transitions, and increasing obesity rates. However, there is limited research related to influencing factors of knowledge, attitude, and practice towards diabetes prevention in Bangladesh. Objective: This study aims to identify the level of knowledge, attitude, and practices (KAP) towards the prevention of Type 2 Diabetes Mellitus and their associated factors among middle-aged adults in Dhaka City, Bangladesh. Methods: A cross-sectional study design was conducted in participants aged 30–64 years, with a …
Association Between Knowledge, Attitude, Risk Perception, Expectancies And Cannabis Use Among International University Students In Thailand : A Cross-Sectional Study, Yueting Liu
Chulalongkorn University Theses and Dissertations (Chula ETD)
The global increase in cannabis use, particularly among young individuals, poses a serious public health risk. Thailand decriminalized cannabis in 2022, under this situation, international students are experiencing changes in social attitudes toward cannabis use and have increasing access to sources of cannabis. There is currently lack of research on cannabis use among this group in Thailand. This study aimed to analyze the associations between knowledge, attitudes, risk perceptions, and expectancies and cannabis use among international university students in Thailand. This cross-sectional study was conducted among international university students aged 18 years and older in Thailand. Participants were collected through …
Nat Kunn And Nat Nann: Changes Of “Body Techniques” And Domestic Spaces Within The Spiritual Cult Of Myanmar, Aung Khant
Nat Kunn And Nat Nann: Changes Of “Body Techniques” And Domestic Spaces Within The Spiritual Cult Of Myanmar, Aung Khant
Chulalongkorn University Theses and Dissertations (Chula ETD)
The British colonization of Burma in 1885 marked a turning point in Myanmar’s traditional society, particularly in changes of body techniques, shikho (prostration), and the practice of wearing or removing shoes in sacred spaces. While recent scholars have examined the changes in body techniques and spiritual cult, the relationship between body techniques and domestic spaces has remained underexplored. Tracing the changes in techniques from Colonial Burma to contemporary Myanmar, this thesis explores the relationship between body techniques and domestic spaces, Nat Kunn, small shrines dedicated to specific Nats, deities, and Nat Nann, which are larger shrines for the Nat Pantheon. …
Potted Plants In Urban Spaces: Analyzing Social And Spatial Dynamics For Urban Management In Bangkok's Residential Areas, Chihiro Okajima
Potted Plants In Urban Spaces: Analyzing Social And Spatial Dynamics For Urban Management In Bangkok's Residential Areas, Chihiro Okajima
Chulalongkorn University Theses and Dissertations (Chula ETD)
Potted plants have long served as portable, small-scale gardens for residents in Thailand, particularly in densely populated and flood-prone areas. In Bangkok, they remain a common feature of the urban landscape, reflecting both everyday life and traditional Thai culture. Beyond their cultural and visual value, these potted plants are increasingly recognized as a practical form of green infrastructure, especially in high-density urban areas where space is limited. However, current rigid regulatory frameworks—which distinguish strictly between public and private spaces—prioritize keeping sidewalks clear, creating tension between city and residents as most potted plants are placed on public land beyond private property …
The Works Of Hassan Roland Vogel As Tropical Modern Architecture In Southeast Asia, 1960s-1980s, Li Hung Chang
The Works Of Hassan Roland Vogel As Tropical Modern Architecture In Southeast Asia, 1960s-1980s, Li Hung Chang
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research explores the architectural contributions of Swiss architect Hassan Roland Vogel (1932–1987), focusing on his interpretation of Tropical Modernism within the cultural and urban contexts of Southeast Asia from the 1960s to the 1980s. As a lesser-known yet significant figure in regional modernism, Vogel co-founded INTAREN Architect and Engineer Company Limited in Bangkok with Jean Albert Penneçot, producing a body of work that balanced Swiss precision with tropical adaptability. His projects, ranging from corporate towers to diplomatic buildings, demonstrate how modernist ideals were reinterpreted through climate, material, and local culture.The study examines key works such as the Esso Building …
Analysing Biophilic And Technophilic Design In Architectural Materiality: A Comparative Study Of Bangkok's Community Malls, Thailand, Min Si Hein
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study examines how architectural materiality and perceptual attributes influence human sensory and emotional experience through the theoretical frameworks of biophilia and technophilia. Focusing on two community malls in Bangkok—The Commons Thong Lo and Zone C of Marché Thong Lo—the research adopts a qualitative comparative case study approach, combining on-site observation, photographic documentation, and semi-structured interviews. The study applies an attribute-based analytical framework that categorizes architectural experience into six dimensions: material origin, sensory qualities, user interaction, visual comfort, spatial atmosphere, and emotional response. The findings reveal that The Commons Thong Lo expresses a predominantly biophilic orientation, characterized by natural materials, …
The Effect Of Economic And Climate Policy Uncertainties On Momentum Strategies Across Different Esg Levels, Siwaphat Prommana
The Effect Of Economic And Climate Policy Uncertainties On Momentum Strategies Across Different Esg Levels, Siwaphat Prommana
Chulalongkorn University Theses and Dissertations (Chula ETD)
This thesis investigates the impact of Economic Policy Uncertainty (EPU) and Climate Policy Uncertainty (CPU) on ESG momentum strategies in U.S. equity markets from 2011 to 2023. Momentum portfolios are constructed within high- and low-rated ESG pillar groups to assess how policy uncertainty influences their performance across different firm characteristics, including sectoral classification and geographic operations. Empirical analysis reveals that policy uncertainty, particularly through Forecast and News channels, significantly affects momentum returns, with the strongest effects concentrated among low ESG-rated and domestically focused firms. Cyclical sectors display heightened sensitivity to both EPU and CPU, while international firms show weaker or …
A Comparative Study Of Econometric And Deep Learning Models For Forecasting Exchange-Traded Fund Prices In The Thai Market, Witchayut Likhitrattanakon
A Comparative Study Of Econometric And Deep Learning Models For Forecasting Exchange-Traded Fund Prices In The Thai Market, Witchayut Likhitrattanakon
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study evaluates and compares the forecasting accuracy of ten Exchange-Traded Funds (ETFs) in the Thai market using comprehensive econometric and deep learning models, with Mean Absolute Error (MAE) as the primary performance metric. The research examines DCC-GARCH, CCC-GARCH, standard GARCH-type models and Long Short-Term Memory (LSTM) networks across both raw and processed data environments (from isolation forest and random forest). In the comprehensive model comparison, Univariate LSTM with Real Price input (30 lookback period) achieved the lowest MAE for eight of ten ETFs in raw data and seven of ten in processed data, establishing it as the most effective …
Efficacy Of 0.3% Cannabidiol (Cbd) Oral Paste For Treatment Of Recurrent Aphthous Ulcers, Fuengboon Talkijkul
Efficacy Of 0.3% Cannabidiol (Cbd) Oral Paste For Treatment Of Recurrent Aphthous Ulcers, Fuengboon Talkijkul
Chulalongkorn University Theses and Dissertations (Chula ETD)
0.1% Cannabidiol (CBD) was reported to be suitable as an alternative management for Recurrent Aphthous Ulcers (RAU) due to its analgesics and anti-inflammatory effects. This study aimed to examine 0.3 % CBD when compared to 0.1% CBD, 0.1% Triamcinolone Acetonide (TA) oral paste and pure oral paste in the treatment of RAU. For safety investigations, 100 healthy subjects were examined for allergic reaction to 0.3% CBD oral paste compared to pure oral paste, then 50 healthy subjects were evaluated for local and systemic effects of 0.3% CBD oral paste in which blood tests were performed before drug application and seven …
Stress And Burnout Level Among Bhutanese Dentists And Medical Officers In Bhutan, Karma Zangmo
Stress And Burnout Level Among Bhutanese Dentists And Medical Officers In Bhutan, Karma Zangmo
Chulalongkorn University Theses and Dissertations (Chula ETD)
Healthcare professionals, particularly dentists and physicians, are at high risk of stress and burnout due to long working hours, heavy workloads, clinical decision-making responsibilities, and the need for continuous knowledge updates. This study aimed to assess stress and burnout levels among Bhutanese dentists and physicians. A cross-sectional survey was conducted using online questionnaires distributed to 85 dentists and 325 physicians, with response rates of 87.7% and 52.6%, respectively. Stress was measured using the 14-item Perceived Stress Scale (PSS), and burnout was assessed with the 22-item Maslach Burnout Inventory (MBI). Among dentists, 97.8% reported stress, with 91.8% at moderate levels. Among …
Effect Of Characteristics Of Titanium Dental Implant And Patient Related Factors On Implant Stability: 2-Year Retrospective Follow-Up Study, Kyaw Zin Thein
Effect Of Characteristics Of Titanium Dental Implant And Patient Related Factors On Implant Stability: 2-Year Retrospective Follow-Up Study, Kyaw Zin Thein
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Dental implants offer improvements in oral function and aesthetics for edentulous patients. Thai dental implants have emerged as a cost-effective alternative product. Objective: This study aimed to evaluate factors that influence the success of PRK dental implants over a two-year follow-up period. Methods: This retrospective study included patient records of at least one unit of PRK implant-supported prosthesis with a minimum of two-year of follow-up between 2020 and 2025 at the Dental Innovation Foundation under Royal Patronage, Thailand. Data was extracted on demographics, oral habits, medical history, and periodontal parameters (plaque index, pocket depth, keratinized gingiva width, and gingival …
Influence Of Shade On Color Reproducibility Of Lithium Disilicate Crowns, Naphat Santiworanart
Influence Of Shade On Color Reproducibility Of Lithium Disilicate Crowns, Naphat Santiworanart
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective: This study aimed to evaluate the influence of nominal shade on the color reproducibility of CAD-CAM lithium disilicate glass ceramic crowns.Materials and Methods: An in vitro study was conducted on 16 CAD-CAM lithium disilicate crowns (IPS e.max CAD LT) fabricated in four VITA Classical shades (A3, B3, C3, D3; N=4 per group). Each crown was cemented on a corresponding polymethylmethacrylate (PMMA) abutment of matching shade. Shade determination was performed using a spectrophotometer and an intraoral scanner under controlled conditions. Color trueness was assessed against the VITA Classical shade guide using exact match and broad acceptance criteria. The L*, a*, …
Effect Of Printing Orientation And Surface Treatment On The Surface Roughness, Shear Bond Strength, And Flexural Strength Of 3d-Printed Provisional Materials, Kornrawee Wiroonsri
Effect Of Printing Orientation And Surface Treatment On The Surface Roughness, Shear Bond Strength, And Flexural Strength Of 3d-Printed Provisional Materials, Kornrawee Wiroonsri
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aimed to evaluate the influence of printing orientation and surface treatment on the surface roughness, shear bond strength (SBS), and flexural strength of three-dimensional (3D)-printed provisional resin materials. Four printing orientations (0°, 45°, 60°, and 90°) and four surface treatments (no treatment, airborne particle abrasion (APA), tetrahydrofuran (THF), and HC primer) were investigated. A total of 320 specimens were fabricated, post-processed, and tested according to ISO standards. Among these, 240 disk-shaped specimens were utilized for surface roughness assessment, conducted using a non-contact profilometer, and for SBS evaluation through a notched-edge shear test. Additionally, 80 rectangular bar specimens were …
Physico-Mechanical And Antibacterial Properties Of Resin-Based Dental Sealants Modified With Graphene Oxide Nanoparticles, Ploypim Kraisintu
Physico-Mechanical And Antibacterial Properties Of Resin-Based Dental Sealants Modified With Graphene Oxide Nanoparticles, Ploypim Kraisintu
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objectives: This study evaluated the effects of incorporating graphene oxide (GO) nanoparticles at different concentrations (0.1, 0.25, and 0.5 wt%) into resin-based pit and fissure sealants. Mechanical, physical, antibacterial, and cytotoxicity were tested and compared with a commercial reference material.Materials and Methods: An experimental resin-based sealant was formulated and reinforced with GO (G2–G4), while an unmodified resin served as control (G1) and Helioseal® F Plus as commercial comparison (G5). GO morphology was characterized by TEM. Specimens (n=240) were tested for Vickers microhardness, viscosity, surface roughness (DRa) after simulated toothbrushing, and fluorescence (% blue channel). Antibacterial activity against Streptococcus mutans was …
Occlusal Analysis Using A Novel Classification Of Static And Dynamic Articulations In Tmd And Non-Tmd Patients, Uthai Uma
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Temporomandibular disorders (TMD) are multifactorial conditions affecting masticatory systems. While occlusal morphology has been suggested as a contributing factor, functional, behavioral, and postural elements may play a more prominent role. This study aimed to evaluate demographic, clinical, occlusal, and functional characteristics associated with TMD in a Thai patient population using a novel articulation classification. Methods: A retrospective analysis of 872 participants (684 TMD, 188 non-TMD) was conducted. Data included demographic characteristics, postural and habitual behaviors, occlusal morphology, articulation classification, articulation ratios, mandibular range of motion, and TMD diagnostic categories. The articulation classification and ratios were designed and tested for …
Wage Gap And Wage Discrimination Among Persons With Disabilities: Empirical Evidence From Thailand, Natthavit Wongsrithanasarn
Wage Gap And Wage Discrimination Among Persons With Disabilities: Empirical Evidence From Thailand, Natthavit Wongsrithanasarn
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study provides a comprehensive quantitative analysis of the disability wage gap and potential wage discrimination in Thailand. Utilizing data from the 2017 and 2022 Thailand Disability Surveys, this research employs the Oaxaca-Blinder decomposition technique to examine wage disparities between workers with and without physical or cognitive disabilities. The results reveal a substantial wage gap, with non-disabled workers, on average, earning approximately 50% more than persons with physical disabilities and more than twice as much as persons with cognitive disabilities. The decomposition analysis indicates that while over 75% of the wage gap for persons with physical disabilities is explained by …
Guidelines For Designing Efl Textbooks To Promote Critical Reading Using Out-Of-Class English Materials, Chudakarn Pakarasang
Guidelines For Designing Efl Textbooks To Promote Critical Reading Using Out-Of-Class English Materials, Chudakarn Pakarasang
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purposes of this mixed methods study were to 1) examine the extent to which critical reading instruction is embedded in Thai upper-secondary classrooms, and 2) propose guidelines for designing EFL textbooks to promote critical reading using out-of-class English materials for upper-secondary students. Data were collected through a questionnaire, classroom observations, and follow-up interviews. The research instruments consisted of 1) Teacher’s Critical Reading Teaching Practice Questionnaire, 2) observation field notes, and 3) semi-structured interview questions. The participants in the first phase were 91 English teachers in Bangkok, selected through purposive and convenience sampling. From this group, four model teachers were …
Academic Management Strategies For Public Universities In Henan Province, People’S Republic Of China To Enhance The Digital Literacy, Jiepei Jin
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research aimed to 1) study the conceptual framework of public university academic management and the digital literacy. 2) analyze strengths, weaknesses, opportunities, and threats of academic management of public universities in Henan province, China to enhance the digital literacy. 3) develop academic management strategies for public universities in Henan province, China to enhance the digital literacy. A multi-phase mixed methods research design was employed integrating both quantitative and qualitative approaches. The sample consisted of 38 universities in Henan Province, People’s Republic of China. The informants were university administrators and faculty members. The instruments used for data collection included questionnaire, …
Academic Management Strategies Of Private High Schools In Zhejiang, China Based On The Concept Of Digital Entrepreneurship, Jingmei Ma
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aimed to achieve three research objectives: 1) To study the conceptual frameworks of academic management of private high schools and digital entrepreneurship competencies; 2) To identify the strengths, weaknesses, opportunities, and threats (SWOT) of academic management in Zhejiang private high schools based on the concept of digital entrepreneurship; 3) To develop academic management strategies for Zhejiang private high schools to enhance students’ digital entrepreneurship competencies. A multiphase mixed-methods research design was adopted, integrating quantitative and qualitative approaches. The informants included teachers and administrators from private high schools in Zhejiang Province, with a total of 627 respondents. Research instruments …
Effect Of Solvent On Nonanoic And Azelaic Acids Yield Enhancement From Oxidative Cleavage Of Oleic Acid, Chakreeya Santhadklang
Effect Of Solvent On Nonanoic And Azelaic Acids Yield Enhancement From Oxidative Cleavage Of Oleic Acid, Chakreeya Santhadklang
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study investigates the effect of solvent choice on the oxidative cleavage of oleic acid using hydrogen peroxide (H2O2) as the oxidant, with a focus on improving the yields of nonanoic acid (NA) and azelaic acid (AA). Solvent selection was found to play a critical role due to polarity differences between the reactants and oxidants. tert-Butanol was unsuitable because of its low boiling point, leading to the evaluation of higher-boiling solvents including guaiacol, acetoin, ethyl lactate, and isobutyric acid. Guaiacol and acetoin exhibited undesirable chemical reactivity, while ethyl lactate resulted in low yields due to hydrogen bonding with intermediate species. …
Quality Of Life Prediction For Driving Route Planning System Using Image Recognition And Deep Learning, Intouch Prakaisak
Quality Of Life Prediction For Driving Route Planning System Using Image Recognition And Deep Learning, Intouch Prakaisak
Chulalongkorn University Theses and Dissertations (Chula ETD)
Assessing travel-related Quality of Life (QoL) is a significant challenge due to its reliance on subjective human perception, which is difficult to measure. Traditional studies are often constrained by the limited scope of costly, manual data collection. The significant contribution of this research is the introduction of a new framework that can analyze tourist perception on a large and systematic scale. The novelty of this work lies in the utilization of Google Street View (GSV) as a large-scale visual data source, coupled with the use of a sequence-based model to analyze travel routes, which allows for the simulation of the …
Out-Of-Domain Tuberculosis Detection From Chest X-Ray Images Using Meta Learning With Soft Labels, Kanokphat Jinanarong
Out-Of-Domain Tuberculosis Detection From Chest X-Ray Images Using Meta Learning With Soft Labels, Kanokphat Jinanarong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Automated tuberculosis screening from chest x-ray images could greatly benefit regions with limited medical resources. However, currently available methods could not handle this problem well due to the difference in chest x-ray images in each region caused by the difference in machine and demographics, the possible noise in the available labels, and other reasons. We therefore propose a new machine learning algorithm that could detect tuberculosis with great accuracy on any other data sources by learning from completely different data sources. We used a model-agnostic meta-learning together with a soft label approach, utilizing the meta-gradient to dynamically adjust the soft …
A Study On The Impact Of Superconducting Fault Current Limiteron Arc Flash Hazard In An Industrial System, Kittipong Anantanasap
A Study On The Impact Of Superconducting Fault Current Limiteron Arc Flash Hazard In An Industrial System, Kittipong Anantanasap
Chulalongkorn University Theses and Dissertations (Chula ETD)
The increasing integration of distributed generation raises short-circuit current levels, which lead to concerns about equipment overheating, insulation deterioration, and system stability issues. The Resistive Superconducting Fault Current Limiter (R-SCFCL) offers an effective solution by dynamically increasing circuit impedance during faults without affecting normal operation. However, its integration may alter the fault-clearing time of the protection system, which is crucial for arc-flash safety. This study evaluates the impact of R-SCFCL integration on arc-flash hazards in an industrial power system, utilizing DIgSILENT PowerFactory and calculations based on IEEE 1584. Results indicate that while the R-SCFCL effectively reduces arcing current, the incident …
Evaluating Co2 Storage Criteria : Focusing On Thailand's Petroleum Basins For Carbon Storage, Paul Tivere Benjamin
Evaluating Co2 Storage Criteria : Focusing On Thailand's Petroleum Basins For Carbon Storage, Paul Tivere Benjamin
Chulalongkorn University Theses and Dissertations (Chula ETD)
Anthropogenic carbon dioxide (CO2) emissions from large point sources remain central to Thailand’s climate challenge, and geological carbon capture and storage (CCS) is now included in national mitigation plans. However, Thailand still lacks a transparent way to compare candidate saline aquifers and petroleum basins in terms of storage performance, containment, and socio-economic conditions, while allowing for uneven data quality. This thesis develops a Thailand-specific, two-stage framework that combines threshold-based screening with a multi-criteria ranking framework based on the Analytic Hierarchy Process (AHP) and Data Confidence Scores (DCS). Twenty-one criteria in three groups (capacity and injectivity, containment, and socio-economic constraints) were …
Large Language Model-Based Framework For Mental Health Support Conversation In Thai, Radchaneeporn Changpun
Large Language Model-Based Framework For Mental Health Support Conversation In Thai, Radchaneeporn Changpun
Chulalongkorn University Theses and Dissertations (Chula ETD)
As mental health support needs continue to rise in Thailand, access to professional care remains constrained. LLM-based chatbots present a scalable alternative, though most current systems are limited to single-turn, solution-focused interactions. This thesis introduces a Large Language Model-Based Framework for Mental Health Support Conversations in Thai, organizing dialogues around five fundamental mental health counseling stages: rapport building, problem identification, goal setting, working, and termination. Drawing from Person-Centered Therapy (PCT) and Acceptance and Commitment Therapy (ACT). The framework was assessed against three single-agent baseline models using LLM-simulated users, with positive user reaction rates evaluated by LLMs. Results demonstrated a 79.01% …
Simulation On Hydrogen Production From Mae-Moh Lignite Coal Gasification, Pitatchai Arunwong
Simulation On Hydrogen Production From Mae-Moh Lignite Coal Gasification, Pitatchai Arunwong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Hydrogen energy has attracted significant attention due to its cleanliness, efficiency, and sustainability. Gasification is considered one of the most promising thermochemical routes to convert coal into high-quality syngas, which can subsequently be utilized for hydrogen production. Mae-Moh lignite, a low-rank coal with low carbon content and high moisture and volatile matter, is selected as the feedstock for this study. This research aims to develop a comprehensive simulation model of a hydrogen production process, integrating gasification, water-gas shift (WGS), acid gas removal, and hydrogen purification using the software simulator. The model predicts hydrogen product gas composition from Mae-Moh lignite under …
A Novel Hydrothermal Synthesis Process Of Mil-53(Al) Using Bamboo Biochar As A Sustainable Precursor For Co₂ Adsorption, Pisit Phayutcharoenkun
A Novel Hydrothermal Synthesis Process Of Mil-53(Al) Using Bamboo Biochar As A Sustainable Precursor For Co₂ Adsorption, Pisit Phayutcharoenkun
Chulalongkorn University Theses and Dissertations (Chula ETD)
Among the numerous MOFs members, MIL-53 (Al) framework is one of the most interesting structures due to the breathing effect and has been widely investigated for hydrogen storage and water treatment. It is built up by the interconnection of infinite trans chains of corner-sharing AlO4(OH)2 octahedral by 1,4-benzenedicarboxylate ligands. MIL-53 crystallizes in a “wine rack” structure (Pnma, a = 17.129(2) Å, b = 6.628(1) Å, c = 12.182(1) Å, α = β = γ = 90°) with large internal pores held open by excess solvent and unreacted ligand in the as-synthesized state. Another challenge is the synthesis process and raw …
Development Of Microfluidic Device To Monitor The Contamination In Drinking Water Using Impedance Spectroscopy, Pornpipat Oupchan
Development Of Microfluidic Device To Monitor The Contamination In Drinking Water Using Impedance Spectroscopy, Pornpipat Oupchan
Chulalongkorn University Theses and Dissertations (Chula ETD)
Microplastic contamination is a growing concern, as microplastics have been found in brain tissue and can enter the body through consumption. The objective of this research is to develop a microfluidic device to monitor microplastic particles by using electrical impedance spectroscopy principles. The device operates based on a flow-through principle. The configuration of electrode consists of copper-based cylindrical electrode with diameter of 300 micrometer and a center-to-center spacing of 2000 micrometer. The electrodes are designed to be replaceable. The microchannel has a rectangular cross-section with a width of 2000 micrometer and a height of 1000 micrometer. The microfluidic device was …
Real-Time Monitoring System For Sedentary Behavior Using Pose-Estimation Approach, Pheng Ou Chea
Real-Time Monitoring System For Sedentary Behavior Using Pose-Estimation Approach, Pheng Ou Chea
Chulalongkorn University Theses and Dissertations (Chula ETD)
Long-term sedentary behavior, defined as extended periods of sitting or inactivity, increases the risk of obesity, cardiovascular disease, and other health problems. These risks are often underestimated due to low levels of physical activity. This study proposes the use of You Only Look Once (YOLO)–based pose estimation for dwell-time analysis to monitor sedentary behavior. We examined posture over an entire day to assess prolonged inactivity and encourage individuals to balance energy expenditure with available time—such as engaging in exercise in the early morning or evening according to recommended guidelines. For employees across generations, as well as for vulnerable groups such …
Exploring The Lived Experience Of Moderate To Severe Premenstrual Symptoms In Women With Histories Of Emotional Maltreatment: A Thematic And Art-Based Inquiry, Hen Polat
Chulalongkorn University Theses and Dissertations (Chula ETD)
Premenstrual Disorders (PMDs) profoundly impact women’s daily lives yet remain under-recognized and undertreated, despite evidence that most sufferers report histories of childhood trauma, particularly emotional maltreatment. This study had three objectives: to explore the lived experiences and meaning-making of women with PMDs and emotional maltreatment histories; to examine perceived connections between premenstrual distress and past trauma; and to evaluate the role of drawing as a research tool for accessing experiences difficult to verbalize. Fifteen women aged 24–43 from nine countries were recruited through online support groups and screened with the Premenstrual Symptoms Screening Tool (PSST), the Childhood Trauma Questionnaire (CTQ-SF), …