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กลยุทธ์การบริหารวิชาการโรงเรียนอนุบาลสังกัดกรุงเทพมหานครตามแนวคิดความฉลาดรู้ใหม่ในยุคดิจิทัล, ณัฐวุฒิ จันทร์โสภา
กลยุทธ์การบริหารวิชาการโรงเรียนอนุบาลสังกัดกรุงเทพมหานครตามแนวคิดความฉลาดรู้ใหม่ในยุคดิจิทัล, ณัฐวุฒิ จันทร์โสภา
Chulalongkorn University Theses and Dissertations (Chula ETD)
การการวิจัยครั้งนี้มีวัตถุประสงค์เพื่อ 1) ศึกษากรอบแนวคิดการบริหารวิชาการโรงเรียนอนุบาลสังกัดกรุงเทพมหานคร และกรอบแนวคิดความฉลาดรู้ใหม่ในยุคดิจิทัล 2) ศึกษาระดับความฉลาดรู้ใหม่ในยุคดิจิทัลของเด็กปฐมวัย 3) ศึกษาความต้องการจำเป็นในการพัฒนาการบริหารวิชาการโรงเรียนอนุบาลสังกัดกรุงเทพมหานครตามแนวคิดความฉลาดรู้ใหม่ในยุคดิจิทัล และ 4) พัฒนากลยุทธ์การบริหารวิชาการโรงเรียนอนุบาลสังกัดกรุงเทพมหานครตามแนวคิดความฉลาดรู้ใหม่ในยุคดิจิทัล ใช้ระเบียบวิธีวิจัยผสมวิธีพหุระยะ กลุ่มตัวอย่างที่ใช้ในการวิจัย คือ โรงเรียนที่เปิดสอนระดับชั้นอนุบาล สังกัดกรุงเทพมหานคร จำนวน 207 โรงเรียน ผู้ให้ข้อมูล คือ ผู้อำนวยการ รองผู้อำนวยการ และครู รวม 621 คน เครื่องมือที่ใช้ในการวิจัย ได้แก่ แบบสอบถามและแบบประเมิน สถิติที่ใช้ในการวิเคราะห์ข้อมูล คือ ค่าความถี่ ร้อยละ ค่าเฉลี่ย ส่วนเบี่ยงเบนมาตรฐาน ค่าดัชนีความต้องการจำเป็น และการวิเคราะห์เนื้อหาจากการสนทนากลุ่ม ผลการวิจัยพบว่า 1) กรอบแนวคิดการบริหารวิชาการโรงเรียนอนุบาลสังกัดกรุงเทพมหานคร ประกอบด้วย 4 งาน ได้แก่ (1) ด้านหลักสูตร (2) ด้านการจัดประสบการณ์การเรียนรู้ (3) ด้านสื่อ สภาพแวดล้อมการเรียนรู้ และ (4) ด้านประเมินพัฒนาการ กรอบแนวคิดความฉลาดรู้ใหม่ในยุคดิจิทัล ประกอบด้วย 4 องค์ประกอบหลัก 12 องค์ประกอบย่อย ได้แก่ องค์ประกอบที่ (1) ความฉลาดรู้ด้านข้อมูล ประกอบด้วย 2 องค์ประกอบย่อย คือ การเข้าถึงและเข้าใจสื่อ การคิดวิเคราะห์และใช้ข้อมูลสารสนเทศ องค์ประกอบที่ (2) ความฉลาดรู้ด้านเทคโนโลยี ประกอบด้วย 2 องค์ประกอบย่อย คือ ความรู้ด้านคณิตศาสตร์และวิทยาศาสตร์ ความสามารถในการใช้และเข้าใจผลกระทบของเทคโนโลยี องค์ประกอบที่ (3) ความฉลาดรู้เกี่ยวกับมนุษย์ ประกอบด้วย 5 องค์ประกอบย่อย คือ ความสามารถในการสร้างสรรค์สิ่งใหม่ ทักษะอารมณ์และสังคม ความสามารถในการสื่อสารและประสานความร่วมมือ ความสามารถในการคิดและเรียนรู้ การมีมนุษยธรรม องค์ประกอบที่ (4) ทักษะพื้นฐาน ประกอบด้วย 3 องค์ประกอบย่อย คือ ความฉลาดรู้การเงิน …
ผลการจัดการเรียนรู้สุขศึกษาโดยใช้แนวคิดกรอบคิดติดยึดเติบโตที่มีต่อพฤติกรรมทางเพศที่พึงประสงค์และการเคารพของนักเรียนมัธยมศึกษาตอนปลาย, สุวิจักขณ์ พลเดช
ผลการจัดการเรียนรู้สุขศึกษาโดยใช้แนวคิดกรอบคิดติดยึดเติบโตที่มีต่อพฤติกรรมทางเพศที่พึงประสงค์และการเคารพของนักเรียนมัธยมศึกษาตอนปลาย, สุวิจักขณ์ พลเดช
Chulalongkorn University Theses and Dissertations (Chula ETD)
การวิจัยครั้งนี้มีวัตถุประสงค์ เพื่อศึกษาผลการจัดการเรียนรู้สุขศึกษาโดยใช้แนวคิดกรอบคิดติดยึดเติบโตที่มีต่อพฤติกรรมทางเพศที่พึงประสงค์และการเคารพของนักเรียนมัธยมศึกษาตอนปลาย วิธีดำเนินการวิจัย ตัวอย่างใช้การเลือกกลุ่มตัวอย่างแบบเฉพาะเจาะจง เป็นนักเรียนโรงเรียนในสังกัดสำนักงานเขตพื้นที่การศึกษามัธยมศึกษากรุงเทพมหานคร ชั้นมัธยมศึกษาปีที่ 5 จำนวน 60 คน และใช้วิธีการสุ่มอย่างง่ายจับฉลากแบ่งเป็นกลุ่มทดลองที่ได้รับการจัดการเรียนรู้โดยใช้การเรียนรู้แนวคิดกรอบคิดติดยึดเติบโต จำนวน 30 คน และกลุ่มควบคุมที่ได้รับการจัดการเรียนรู้โดยใช้รูปแบบปกติจำนวน 30 คน เครื่องมือที่ใช้ในการวิจัย คือ แผนการจัดการเรียนรู้สุขศึกษาโดยใช้การจัดการเรียนรู้โดยใช้แนวคิดกรอบคิดติดยึดเติบโต จำนวน 8 แผน มีค่าดัชนีความสอดคล้องรวม 0.87 และเครื่องมือที่ใช้ในการเก็บรวบรวมข้อมูล คือ แบบวัดพฤติกรรมทางเพศที่พึงประสงค์และการเคารพ จำนวน 2 ฉบับ มีค่าดัชนีความสอดคล้อง 0.94 และ 1 ตามลำดับ มีค่าความเที่ยง 0.86 และ 0.79 ตามลำดับ วิเคราะห์ข้อมูลโดยใช้ค่าเฉลี่ย ส่วนเบี่ยงเบนมาตรฐาน และทดสอบความแตกต่างค่าเฉลี่ยของคะแนนด้วยค่าที ซึ่งการจัดการเรียนรู้สุขศึกษาโดยใช้แนวคิดกรอบคิดติดยึดเติบโตสามารถนำไปปรับประยุกต์ใช้ในการพัฒนาผู้เรียนได้
Three Essays On Digital Health: Online Communication, Health Information Seeking, Complementary Medicine Use Among Older Adults And Vulnerable Populations, Daria Turavinina
Three Essays On Digital Health: Online Communication, Health Information Seeking, Complementary Medicine Use Among Older Adults And Vulnerable Populations, Daria Turavinina
Chulalongkorn University Theses and Dissertations (Chula ETD)
Through three empirical essays, this work explored how information and communication technology (ICT) use shapes population health behaviors and outcomes, with a particular focus on older adults. The first essay critically investigated whether online communication can serve as a substitute for in-person social contact in mitigating loneliness among late middle-aged and older persons. The study finds that while excessive reliance on digital interaction correlated with higher loneliness in the general older adult population, it could potentially serve a protective function for those in poor health by reducing social isolation. The second essay investigated how online health information seeking behavior and …
Participatory Training On Health Literacy To Improve Body Composition Among Female Overweight And Obese-High School Students, Phatthalung Province, Thailand : A Quasi Experimental Study, Chamaiporn Thongphet
Participatory Training On Health Literacy To Improve Body Composition Among Female Overweight And Obese-High School Students, Phatthalung Province, Thailand : A Quasi Experimental Study, Chamaiporn Thongphet
Chulalongkorn University Theses and Dissertations (Chula ETD)
Children and adolescents aged 5-19 over 340 million were overweight and obese, the prevalence has risen dramatically. Overweight and obesity are linked to more deaths worldwide than underweight. Using health literacy-focused strategies, the intervention was robust in achieving reductions for participants of varying health literacy status. This study aimed to evaluate the effect of “Participatory Training Health Literacy” on reducing risk behavior and improving body composition among the female overweight and obese high school students, Phatthalung province, Thailand. The study design was 2 designs including cross-sectional study (n=572) design and quasi- experimental research (intervention=36 and control=31). The assessment had conducted …
Assessment Of Dietary Protein Intake Pattern And Perception Of Egg White Noodle Consumption Among Pre-Aging Population, Apisara Limpraphuwiwattana
Assessment Of Dietary Protein Intake Pattern And Perception Of Egg White Noodle Consumption Among Pre-Aging Population, Apisara Limpraphuwiwattana
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aimed to examine protein consumption behaviors and the factors influencing protein intake among the pre-aging population, with a focus on egg white protein and the acceptance of egg white protein noodles. The study employed the Health Belief Model as a theoretical framework to explore health beliefs regarding protein consumption and its association with sarcopenia among pre-aging adults (45-59 years) in Bangkok, Thailand. A cross-sectional survey was conducted with 305 participants, using questionnaires to assess protein consumption patterns. In addition, sensory perception of egg white noodles was evaluated by 60 participants, and 40 participants were included to assess their …
Influence Of Postural Balance, Fear Of Falling, And Falls Risk Awareness On Quality Of Life In Hypertensive And Normotensive Old Aged Females, Rikza Naseer
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Older adult falls are a severe concern in terms of public health worldwide, with many assessment tools predominantly in English, pointing to the need to perform cross-cultural adaptation and validation to use the different instruments in various cultures. The purpose of this study was to translate the Urdu version of the Falls Risk Awareness Questionnaire for eldercare and established its reliability and validity. Moreover, this cross-sectional study also investigated the correlation of anthropometric measurements, postural balance, fear of falls, and falls risk awareness with quality of life of hypertensive older female patients attending Hospitals of Lahore, Pakistan. Methods: Two …
Filled Pauses As A Parameter For Forensic Voice Comparison In Thai, Chanakan Wittayasakpan
Filled Pauses As A Parameter For Forensic Voice Comparison In Thai, Chanakan Wittayasakpan
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study investigated the potential of filled pauses as a parameter for forensic voice comparison in Thai by analyzing within-speaker and between-speaker acoustic variation. Spontaneous speech from 20 female Bangkok Thai speakers was examined, focusing on the filled pauses ‘uh’ [(ʔ)ɤ̀ː] and ‘em’ [(ʔ)ɤ̀ːm]. Acoustic features extracted included the first three formant frequencies (F1, F2, F3), dynamic formant trajectories, and durations. The analysis consistently showed that Thai filled pauses carry significant speaker-specific information, demonstrated by several measures showing significant between-speaker variation that outweighed within-speaker variation and their ability to discriminate speakers above chance levels. The systems were found to be …
Investigation Of Information-Seeking Behavior Of Secondary School English Teachers In Batam City, Indonesia For Lesson Plan Preparation, Rayhan Musa Novian
Investigation Of Information-Seeking Behavior Of Secondary School English Teachers In Batam City, Indonesia For Lesson Plan Preparation, Rayhan Musa Novian
Chulalongkorn University Theses and Dissertations (Chula ETD)
This thesis examines the information sources chosen by secondary school English teachers for lesson planning, alongside their information awareness and the constraints encountered. A lesson plan acts as a teacher's guide, detailing student learning objectives, associated resources and activities, and ensuring compliance with local and national curricula. This qualitative research employed semi-structured interviews with 15 English teachers from secondary schools in Batam City, Indonesia, using the Zoom platform. Thematic analysis was applied to analyze the data. Results reveal a three-stage pattern in teachers' selection and use of information sources: primary, secondary, and tertiary stages. Initially, teachers rely on formal internal …
A Comparative Study Of Early Fusion And Multimodal Siamese Neural Network Using Image And Text Data In Food Classification, Kanokporn Sintarasirikulchai
A Comparative Study Of Early Fusion And Multimodal Siamese Neural Network Using Image And Text Data In Food Classification, Kanokporn Sintarasirikulchai
Chulalongkorn University Theses and Dissertations (Chula ETD)
The economic development under capitalism has significantly transformed people's lifestyles, resulting in a fast-paced daily life. This shift has increased the consumption of convenient food options, leading to a preference for fast food, which is often high in carbohydrates and fats. Consequently, there has been a rise in obesity and related health issues, highlighting the importance of monitoring food intake. Automated systems utilizing artificial intelligence (AI) have emerged as potent tools for providing personalized dietary advice and monitoring. With the growing volume of food-related content on social media, including images and accompanying text, leveraging multimodal data has become essential for …
The Influence Of Intellectual Property Mergers And Acquisitions On Long- Term Financial Performance: Insights From Chinese Companies, Mingyue Fang
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study examines the long-term financial effects of intellectual property-related M&As (IP M&As) in China, using ROIC as the main performance metric. Based on a panel of listed firms from 2000–2020, it first applies a DID model to compare IP M&As with regular deals, then extends to a DDD framework to assess directional heterogeneity (North-to-South, South-to-North, intra-regional). Results show IP M&As improve ROIC, especially in North-to-South transactions. Mechanism analysis confirms enhanced innovation output, though its financial conversion may face institutional or integration frictions. The study highlights the strategic value of IP M&As and the importance of regional context in post-deal …
Association Between Ageing Perception And Oral Health Dimensions In Thai Older People, Nattapat Khongsirisombat
Association Between Ageing Perception And Oral Health Dimensions In Thai Older People, Nattapat Khongsirisombat
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Maintaining good oral health as people age is just as important as overall health. Ageing perception, how individuals perceive their ageing process, has been shown to affect health outcomes. However, the relationship between ageing perception and oral health, including oral health-related quality of life (OHRQoL), remains underexplored. Objective: This study explores the associations between ageing perception, oral health dimensions, and OHRQoL among older Thai people. Methods: The study was conducted in two phases. Phase I translated and validated the Thai version of the short-form Attitudes to Ageing Questionnaire (Thai AAQ-SF). Phase II focused on hypothesis testing through structured interviews …
The Effect Of Surface Treatments And Coffee Thermocycling On Color Stability And Translucency Of Cad-Cam Polychromatic High-Translucent Zirconia Compared With Lithium Disilicate Glass Ceramic, Ratchaphat Khomprang
The Effect Of Surface Treatments And Coffee Thermocycling On Color Stability And Translucency Of Cad-Cam Polychromatic High-Translucent Zirconia Compared With Lithium Disilicate Glass Ceramic, Ratchaphat Khomprang
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objectives: To evaluate effects of surface treatments on the color stability (ΔE) and translucency parameter (TP) of Gradient Multilayered yttria-stabilized Zirconia (GMZ), Ultra-translucent multilayered Zirconia (UTML) and lithium disilicate glass ceramic (LD) under coffee thermocycling. Methods: 27 samples from each material were classified into 3 groups (polished, glazed, and glazed+pumice). A dental spectrophotometer was utilized to measure the color coordinates before and after thermocycling. The color and translucency differences (ΔE and ΔTP) measurements were determined using the CIELAB formula, and their corresponding 50%:50% perceptibility and acceptability thresholds (PT and AT) were used for analysis. One-way ANOVA and Two-way ANOVA was …
Effect Of Chairside Silicone Polishing Systems On The Surface Roughness Of Cad/Cam Milled And Conventional Denture Base Materials, Sarita Apiromwijit
Effect Of Chairside Silicone Polishing Systems On The Surface Roughness Of Cad/Cam Milled And Conventional Denture Base Materials, Sarita Apiromwijit
Chulalongkorn University Theses and Dissertations (Chula ETD)
Purpose: The objective of this study was to evaluate the effect of two commercial chairside polishing systems compared with conventional laboratory polishing on the surface roughness of two types of denture base materials. Methods: Square-shaped specimens (8x8x5 mm) were fabricated from CAD/CAM milled and heat-polymerized denture base materials. Each specimen was ground with tungsten carbide and then divided into three groups according to polishing techniques(n=8): Exa technique, AcryPoint, and conventional laboratory polishing. The roughness (Ra) values were measured using a non-contact profilometer after finishing with tungsten carbide bur, every 30 seconds with each subsequent polisher (rough, medium, and fine) of …
Oral Health-Related Quality Of Life, Patient’S Satisfaction And The Clinical Performance Of Anterior Ceramic Veneers Criteria In 10 Years Clinical Cross-Section Study, Thitiorn Panayong
Oral Health-Related Quality Of Life, Patient’S Satisfaction And The Clinical Performance Of Anterior Ceramic Veneers Criteria In 10 Years Clinical Cross-Section Study, Thitiorn Panayong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objectives: The purpose of this study was to evaluate the clinical performance of ceramic veneers after 9-10 years, assess oral health-related quality of life and patient’s satisfaction, and examine the associations between them. Materials and Methods: 30 patients who treated with ceramic veneers aged 9 to 10 years were recalled for a clinical examination. Each participant completed a questionnaire on satisfaction and oral health-related quality of life, using the Oral Impact on Daily Performance (OIDP) scale. The Chi-square or Fisher Exact test was used to assess associations between tooth position and professional evaluations of veneer success and individual items. Consistency …
The Study On Surface Roughness And Corrosion Resistance Of Electropolished Laser Powder Bed Fusion Ti-6al-4v Eli Alloy, Venus Chatpaiboonwat
The Study On Surface Roughness And Corrosion Resistance Of Electropolished Laser Powder Bed Fusion Ti-6al-4v Eli Alloy, Venus Chatpaiboonwat
Chulalongkorn University Theses and Dissertations (Chula ETD)
The Ti6Al4V ELI alloy produced via Laser Powder Bed Fusion (L-PBF) has drawn interest for usage in dental applications. However, surface finishing is an important property that can be managed by various methods. The purpose of this study was to investigate the effects of electropolishing (EP) on the surface roughness and corrosion resistance of L-PBF Ti6Al4V ELI alloy. The present study explored the influence of current density, voltage, and distance on the surface quality and corrosion behavior. The results showed that EP significantly reduced the surface roughness and enhanced corrosion resistance of printed Ti6Al4V ELI alloy with the best result …
Effects Of Ai-Assisted Collaborative Learning On English Speaking Skill Of Myanmar Undergraduate Students, Tin Lin Kyaw
Effects Of Ai-Assisted Collaborative Learning On English Speaking Skill Of Myanmar Undergraduate Students, Tin Lin Kyaw
Chulalongkorn University Theses and Dissertations (Chula ETD)
The present study endeavored to: 1) examine effects of AI-assisted collaborative learning on English speaking skill of Myanmar undergraduate students, and 2) explore opinions of Myanmar undergraduate students towards AI-assisted collaborative learning. This research is a quasi-experimental study. The participants were 32 participants, selected through convenience sampling, as they were administered English speaking lessons for eight class periods. The instructional instrument involved lesson plans, while the research instruments contained pre- and post-tests of English speaking, and semi-structured interviews. The research findings revealed that 1) there were substantial developments in students’ English speaking skill after the implementation of AI-assisted collaborative learning, …
Modelling Of Competing Compensation And Excess Revenue Sharing In Project-Based Ppp Contracts: Machine Learning And Real Option Approaches, Lykeang Sorin
Chulalongkorn University Theses and Dissertations (Chula ETD)
Public Private Partnership (PPP) is now considered as a very common approach for the delivery of infrastructure projects, especially in developing countries in which fiscal budgets are limited. Most PPP projects are usually implemented as project-based, connecting existing infrastructure projects. However, transportation infrastructure projects as a whole work as a network of systems such as highway systems and mass rail transit (MRT) systems. Currently, the project-based approach to PPP implementation has created two unintended consequences: (1) fragmentation of the systems and (2) non-compete clause in PPP contracts preventing new development that may affect the future revenues of the concessionaire. The …
A High-Gain Wideband Antenna Employing Novel Partial Reflective Surfaces, Mia Maria Ulfah
A High-Gain Wideband Antenna Employing Novel Partial Reflective Surfaces, Mia Maria Ulfah
Chulalongkorn University Theses and Dissertations (Chula ETD)
In this dissertation, different partially reflective surfaces (PRS) are investigated to improve the gain and bandwidth of a Fabry–Perot cavity (FPC) antenna for wireless local-area network (WLAN) and vehicle-to-vehicle (V2V) communication applications. Each of the proposed PRSs has the phase of a reflection coefficient that increases with frequency. This property of the PRS is required for a broadband characteristic of the FPC antenna, which is desirable for the intended applications. A U-shaped microstrip patch antenna (MPA) with a parasitic rectangular patch is used as a feed antenna. It is designed for operation in the WLAN and V2V frequency bands. The …
Development Of Calcium Oxide Sorbent From Waste Natural Materials For Co2 Capture, Muhammad Dody Isnaini
Development Of Calcium Oxide Sorbent From Waste Natural Materials For Co2 Capture, Muhammad Dody Isnaini
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aims to develop calcium oxide (CaO) sorbents for carbon oxide (CO2) capture by using various waste natural materials: eggshells, crab shells, and green mussel shells. These natural materials were used as precursors for the synthesis of CaO sorbents using the citric acid-assisted sol-gel method. Various characterization techniques, including N2 physisorption, XRD, XRF, CO2-TPD, TG/DTG, and FE-SEM, were performed to assess the physicochemical and thermal properties of the synthesized sorbents. The sorbent is investigated for its CO2 adsorption and recycle ability, as it has been a major issue for large-scale deployment of cyclic CO2 capture technology. This study also …
Development Of Porous Poly(Methylmethacrylate) Beads For Toxic Cytokine Removal Application, Nutchanon Putthabucha
Development Of Porous Poly(Methylmethacrylate) Beads For Toxic Cytokine Removal Application, Nutchanon Putthabucha
Chulalongkorn University Theses and Dissertations (Chula ETD)
Sepsis is a vital cause of death globally, primarily due to the uncontrolled secretion of cytokines that disrupt homeostasis. Hemoperfusion is an extracorporeal blood purification technique to treat sepsis that is uncomplicated and effective. The adsorbent material is the essence part of this technique. Since it has to direct contact with blood, the material requires necessary properties, including hemocompatibility, biocompatibility, mechanical stability, etc. Here in this thesis, we developed a new adsorbent material for hemoperfusion using PMMA beads suspension polymerization. Five different porogens, including ethyl acetate, tributyrin (short-chain triglycerides), MCT oil (medium-chain triglyceride), soybean oil (long-chain triglyceride), and toluene were …
Investigation Of Molecular Interactions In Electrocatalysis Using Atomic Force Microscopy, Parivat Phiphatbunyabhorn
Investigation Of Molecular Interactions In Electrocatalysis Using Atomic Force Microscopy, Parivat Phiphatbunyabhorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Electrocatalysis at the nanoscale is fundamentally governed by molecular interactions, but these processes remain poorly understood due to their difficulty to directly investigate and their complex nature. In this study, atomic force microscopy (AFM)-based force spectroscopy is employed to investigate interfacial forces and reactivity in two representative systems: the electrochemical deterioration and healing of Au nanothin films on n-type silicon and the electrocatalytic reduction of MEA-CO2 adduct on Cu electrocatalysts. In the Au nanothin film system, observing that surface degradation is mediated by anionic cluster interactions and modulated by intrinsic band bending and surface energy effects. Remarkably, 20-nm Au films …
Leveraging Gpt-4 For Thai Land And Building Tax Calculation In The Bangkok Area, Sadanan Arsaibun
Leveraging Gpt-4 For Thai Land And Building Tax Calculation In The Bangkok Area, Sadanan Arsaibun
Chulalongkorn University Theses and Dissertations (Chula ETD)
This paper explores the application of large language models (LLMs), particularly GPT-4, in the context of Thai land and building tax computation. We address challenges arising from the complexity of Thai tax regulations, the scarcity of Thai-language training data, and the structured, multi-variable nature of tax computation tasks. To enhance model performance, we employ few-shot prompting, decomposition-based reasoning, and retrieval-augmented generation (RAG). We further introduce a JSON-style output format to support structured conversational interactions, allowing the model to identify missing user inputs and guide data collection. A secondary o3-mini pass is used as an answer verifier, helping to assess the …
Design And Multi-Objective Optimization Of Methanol Reforming, High-Temperature Proton Exchange Membrane Fuel Cell And Organic Rankine Cycle Integrated System, Supawat Taweekayujan
Design And Multi-Objective Optimization Of Methanol Reforming, High-Temperature Proton Exchange Membrane Fuel Cell And Organic Rankine Cycle Integrated System, Supawat Taweekayujan
Chulalongkorn University Theses and Dissertations (Chula ETD)
The growing demand for electricity across all sectors has led researchers to focus on developing advanced electric generation technologies that offer high performance and are environmentally friendly. This study presents the design and multi-objective optimization of an integrated system combining sorption-enhanced chemical looping reforming of methanol (SECL-OSRM), high-temperature proton exchange membrane fuel cells (HT-PEMFCs), and a Recuperative-Regenerative Organic Rankine Cycle (RR-ORC). The hybrid system was simulated using Aspen Plus, focusing on energy, exergy, and exergoeconomic analyses. Sensitivity analyses of SECL-OSRM and ORC subsystems were performed to identify optimal operating conditions and working fluids. A Box-Behnken design of experiments approach generated …
Efficacy Of Reticulocyte Hemoglobin Equivalent-Guided Versus Transferrin Saturation-Guided Iron Supplement Protocol In Hemodialysis Patients: A Cluster Randomized Controlled Trial, Chalermchon Suttaluang
Efficacy Of Reticulocyte Hemoglobin Equivalent-Guided Versus Transferrin Saturation-Guided Iron Supplement Protocol In Hemodialysis Patients: A Cluster Randomized Controlled Trial, Chalermchon Suttaluang
Chulalongkorn University Theses and Dissertations (Chula ETD)
BackgroundIron deficiency increases cardiovascular risk and all-cause mortality in hemodialysis patients. However, standard diagnostic tests, serum ferritin and transferrin saturation (TSAT), have limitations and are costly. Reticulocyte hemoglobin equivalent (RET-He) is a novel, less expensive marker for diagnosing iron deficiency. This study aimed to assess the non-inferiority of RET-He-guided intravenous (IV) iron supplementation compared with TSAT-guided supplementation in hemodialysis patients. MethodsA total of 138 hemodialysis patients were randomized into TSAT-guided (n = 68) and RET-He-guided (n = 70) groups. Both groups received intravenous iron according to a prespecified protocol. The primary outcome was the erythropoietin resistance index (ERI) at the …
Antenatal Dexamethasone For Late Preterm Deliveries: A Randomized Controlled Trial, Hoang Minh Chau Le
Antenatal Dexamethasone For Late Preterm Deliveries: A Randomized Controlled Trial, Hoang Minh Chau Le
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Antenatal corticosteroids (ACS) have been found to have beneficial effects on neonatal lung function, reducing mortality and morbidities, especially in very preterm infants. The World Health Organization recommends ACS for women at risk of preterm birth from 24 to 34 weeks of gestation; however, specific recommendations ACS use in late preterm deliveries remain lacking. This study aimed to assess the effect of antenatal dexamethasone on reducing the need for respiratory support, neonatal morbidities and mortality, NICU admission, and length of hospital stay in late preterm infants. Methods: This single-centre, parallel group, open-label randomized controlled trial enrolled women with singleton …
The Efficacy And Palatability Of Developed Polyethylene Glycol-Based Formula For Children With Functional Constipation, Duc Long Tran
The Efficacy And Palatability Of Developed Polyethylene Glycol-Based Formula For Children With Functional Constipation, Duc Long Tran
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Polyethylene glycol (PEG) is the first-line treatment for childhood functional constipation (FC). Inactive ingredients like sweeteners and flavors may improve the palatability of PEG, leading to good compliance and favorable treatment outcomes. This study aimed to compare the efficacy, safety and palatability of a developed PEG-based formula (PEG-Chula) with the commercial formula available in Thailand for treating childhood FC.Method: This randomized controlled trial enrolled children aged 6 months to 18 years with FC diagnosed by the Rome IV criteria. Participants were randomly assigned (1:1) to receive PEG-Chula (four flavors: strawberry, lychee, green apple, lychee-rose) or Forlax (orange-grapefruit flavor) for …
Exploring The Skin Microbiome Of Alopecic Cynomolgus Macaques (Macaca Fascicularis) Based On Oxford Nanopore Technologies, Natthanit Phokkhasub
Exploring The Skin Microbiome Of Alopecic Cynomolgus Macaques (Macaca Fascicularis) Based On Oxford Nanopore Technologies, Natthanit Phokkhasub
Chulalongkorn University Theses and Dissertations (Chula ETD)
Alopecia or hair loss in captive non-human primates (NHPs) such as cynomolgus macaques is a major concern of animal welfare in many primate facilities. The purpose of this study is to investigate the association between alopecic and healthy skin microbiome in cynomolgus macaques. This study included skin swab samples (head, arm, leg, ventral, and dorsal areas) collected from 33 healthy and 50 alopecic macaques housed at the NPRCT-CU. LEfSe analysis revealed the significant bacteria found in multiple areas of the alopecic group, including P. copri and L. animalis. The significant fungi found in double areas (arm-dorsal, dorsal-head, and leg-ventral) of …
Combining Ultrasound Of Inferior Vena Cava And Laboratory Markers To Enhance Diagnosis Of Euvolemic Hyponatremia In Siad, Natthasit Suphavejkornkij
Combining Ultrasound Of Inferior Vena Cava And Laboratory Markers To Enhance Diagnosis Of Euvolemic Hyponatremia In Siad, Natthasit Suphavejkornkij
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: The diagnosis of Syndrome of Inappropriate Antidiuresis (SIAD) relies heavily on clinical assessment of euvolemia and laboratory parameters, which are often influenced by various confounding factors. Accurate volume status assessment remains a challenge.Objective: To evaluate the diagnostic performance of combining Inferior Vena Cava Collapsibility Index (IVC CI) and Body Composition Monitoring (BCM) in detecting euvolemic status to enhance SIAD diagnosis.Methods: We conducted a prospective cross-sectional study on 32 patients with hyponatremia (serum sodium 115–134 mmol/L) at King Chulalongkorn Memorial Hospital from January to February 2025. All patients underwent physical examination, laboratory testing, IVC ultrasonography, and BCM. The final SIAD …
Thai Version Of The Brief Assessment Of Social Skills-Dementia (Bass-D Th): A Validation And Functional Near-Infrared Spectroscopy Study, Pornsinee Laisathit
Thai Version Of The Brief Assessment Of Social Skills-Dementia (Bass-D Th): A Validation And Functional Near-Infrared Spectroscopy Study, Pornsinee Laisathit
Chulalongkorn University Theses and Dissertations (Chula ETD)
The Brief Assessment of Social Skills – Dementia (BASS-D) was developed to provide a concise and effective measure of social cognition across four domains. This study aimed to validate the Thai version of BASS-D (BASS-D TH), examining its psychometric properties and factors associated with BASS-D TH, as well as anatomical correlates using functional Near-Infrared Spectroscopy (fNIRS). BASS-D was forward and back -translated between Thai and English language. Minor modifications were made to enhance cultural replicability. The BASS-D TH was administered to 28 elderly controls and 13 dementia patients. Age and number of years in formal education were statistically different (t=-3.67, …
Evaluating The Severity Of Disc Herniation : A Comparative Analysis Of Standing Spine Radiographs And Mri Findings, Suttinont Surapuchong
Evaluating The Severity Of Disc Herniation : A Comparative Analysis Of Standing Spine Radiographs And Mri Findings, Suttinont Surapuchong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective: The degree of spinal canal compromise in lumbar disc herniation (LDH) significantly influences treatment outcomes. Although magnetic resonance imaging (MRI) remains the gold standard for assessing LDH severity, limited access in primary and secondary care settings can delay diagnosis and referral. This study aimed to determine whether radiological parameters observed on standing spine radiographs can predict the severity of LDH and support timely referral for advanced care. Methods: In this retrospective cross-sectional study, patients diagnosed with LDH who underwent both standing whole-spine radiographs and lumbar MRI between June 2014 and January 2024 were included. Radiographic parameters evaluated included disc …