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2021

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Effect Of Hydroquinone 5-O-Cinnamoyl Ester Of Renieramycin M On The Suppression Of Lung Cancer Stem Cells, Nattamon Hongwiangchan Jan 2021

Effect Of Hydroquinone 5-O-Cinnamoyl Ester Of Renieramycin M On The Suppression Of Lung Cancer Stem Cells, Nattamon Hongwiangchan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cancer stem cells (CSCs) are distinct cancer populations with tumorigenic and self-renewal abilities. CSCs are drivers of cancer initiation, progression, therapeutic failure, and disease recurrence. Thereby, novel compounds targeting CSCs offer a promising way to control cancer. In this study, the hydroquinone 5-O-cinnamoyl ester of renieramycin M (CIN-RM) was demonstrated to suppress lung cancer CSCs. CIN-RM was toxic to lung cancer cells with a half-maximal inhibitory concentration around 15 µM. CIN-RM suppressed CSCs by inhibiting colony and tumor spheroid formation. In addition, the CSC population was isolated and treated and the CSCs were dispatched in response to CIN-RM within 24 …

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Α-Glucosidase Inhibitors From Dendrobium Delacourii, Dendrobium Gibsonii And Aerides Multiflora, May Thazin Thant Jan 2021

Α-Glucosidase Inhibitors From Dendrobium Delacourii, Dendrobium Gibsonii And Aerides Multiflora, May Thazin Thant

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this study, three plants from the Orchidaceae family, i.e., Dendrobium delacourii, Dendrobium gibsonii, and Aerides multiflora, were investigated for their chemical constituents and α-glucosidase inhibitory activities. A total of thirty compounds were isolated and structurally characterized. Eleven known compounds were identified from Dendrobium delacourii, including hircinol, ephemeranthoquinone, densiflorol B, moscatin, 4,9-dimethoxy-2,5-phenanthrenediol, gigantol, batatasin III, lusianthridin, 4,4',7,7'-tetrahydroxy-2,2'-dimethoxy-9,9',10,10'-tetrahydro-1,1'-biphenanthrene, phoyunnanin E, and phoyunnanin C. Two new compounds, i.e., dihydrodengibsinin and dendrogibsol, were isolated from Dendrobium gibsonii, along with seven known compounds including ephemeranthol A, dengibsinin, nobilone, aloifol I, lusianthridin, denchrysan A, and 4-methoxy-9H-fluorene-2,5,9-triol. Four new compounds, i.e., aerimultins A-C and dihydrosinapyl dihydroferulate, …

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Lipase Inhibitors From Dendrobium Senile, Myat Pann Phyu Jan 2021

Lipase Inhibitors From Dendrobium Senile, Myat Pann Phyu

Chulalongkorn University Theses and Dissertations (Chula ETD)

Obesity is characterized as an abnormal lipid metabolism due the imbalance between the energy intake and output. Pancreatic lipase is secreted by the pancreas and plays an important role in the digestion and absorption of lipids in the small intestine. Inhibition of pancreatic lipase enzyme can reduce dietary fat absorption which will lead to loss of weight and finally result in hypocholesterolemia and hypoglycemia. From the whole plant of Dendrobium senile, a new phenanthrene derivative was isolated, together with seven known compounds, including 2,5,7-trihydroxy-4-methoxyphenanthrene (1), moscatin (2), 2,5-dihydroxy-4,9-dimethoxyphenanthrene (3), moscatilin (4), aloifol I (5), 4,4ʹ,8,8ʹ-tetramethoxy[1,1ʹ-biphenanthrene]-2,2ʹ,7,7ʹ-tetrol (6), 2,2ʹ,7,7ʹ-tetrahydroxy-4,4ʹ-dimethoxy-1,1ʹ-biphenanthrene (7) and bleformin …

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Identification, Antifungal And Plant Growth Promoting Activities Of Endophytic Actinomycetes From Orchids, Nisachon Tedsree Jan 2021

Identification, Antifungal And Plant Growth Promoting Activities Of Endophytic Actinomycetes From Orchids, Nisachon Tedsree

Chulalongkorn University Theses and Dissertations (Chula ETD)

Sixty-two endophytic actinomycetes were isolated from 15 Thai orchids. They were identified as Streptomyces (34 isolates), Micromonospora (21 isolate), Streptosporangium (2 isolates), Actinomadura (1 isolates), Amycolatopsis (3 isolates) and Pseudonocardia (1 isolates) based on their phenotypic, chemotaxonomic and genotypic characteristics. The antimicrobial activity screening revealed that Streptomyces (18 isolates), Micromonospora (12 isolates) and Streptosporangium (1 isolate) exhibited antimicrobial activity against Bacillus subtilis ATCC 6633, Kocuria rhizophila ATCC 9341, Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853 and Candida albicans ATCC 10231. Strain DR2-2 could inhibit all tested pathogens. Based on 16S rRNA gene sequencing, strain DR6-1 …

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Extraction Of Cannabinoids Using Vegetable Oils And Its Uva-Photoprotective Effect On Human Skin Keratinocytes, Nur Alfan Muhammad Zen Jan 2021

Extraction Of Cannabinoids Using Vegetable Oils And Its Uva-Photoprotective Effect On Human Skin Keratinocytes, Nur Alfan Muhammad Zen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Nowadays, vegetable oil has attracted attention in its role as an alternative solvent. Its ability to dissolve various active compounds from plants has been proven by several previous studies. Moreover, other benefits of the use of vegetable oil as a solvent are affordable, non-toxic, and eco-friendly. The extraction process is one of the crucial factors that affect the quality of cannabis. Ethanol is still consistently the best solvent for cannabis extraction in terms of yield production compared to other organic solvents used in this study including oil whose yield cannot be calculated since vegetable oil cannot be evaporated. HPTLC fingerprint …

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Production And Characterization Of Escherichia Coli Outer Membrane Vesicles Displaying Anti-Muc1 Single-Chain Variable Fragment Via Spytag/Spycatcher System, Sedthawut Laotee Jan 2021

Production And Characterization Of Escherichia Coli Outer Membrane Vesicles Displaying Anti-Muc1 Single-Chain Variable Fragment Via Spytag/Spycatcher System, Sedthawut Laotee

Chulalongkorn University Theses and Dissertations (Chula ETD)

Outer membrane vesicles (OMVs) secreted from Gram-negative bacteria have been discovered for a decade. Special features like high stability, ease of production, and intrinsic adjuvanticity highlight the use of OMVs in diverse applications such as vaccination, bioimaging, and multifunctional delivery systems. Synthetic biological approaches can functionalize OMVs to present heterologous proteins by expressing genetic fusion of target protein to outer membrane proteins. However, complex proteins cannot be incorporated into the OMVs due to lack of some post-translational modifications in bacteria. Herein, we demonstrated a convenient method for presentation of versatile proteins in OMVs with the implementation of the bio-ligation system …

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3,4-Dihydroxy-5,4’-Dimethoxybibenzyl Sensitizes Non-Small Cell Lung Cancer Cells To Cisplatin-Induced Apoptosis Via P53 Upregulation, Hardyanti Eka Putri Jan 2021

3,4-Dihydroxy-5,4’-Dimethoxybibenzyl Sensitizes Non-Small Cell Lung Cancer Cells To Cisplatin-Induced Apoptosis Via P53 Upregulation, Hardyanti Eka Putri

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lung cancer is a leading fatal malignancy with the highest number of cancer deaths. Targeting a specific protein regulating cancer progression and metastasis has been attracting much attention for the development of cancer therapy. Thus, this study was aimed to investigate the effect of 3,4-dihydroxy-5,4′-dimethoxybibenzyl (DS-1) in targeting MDM2-attenuating p53 function and inhibition EMT in lung cancer cells. The efficacy of DS-1 or combined with cisplatin in lung cancer cells was determined by MTT, nuclear staining, and Annexin V/PI assays. The expression of apoptosis- and EMT-related proteins was determined by western blot analysis. Metastatic behaviors were evaluated by cell shape …

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Cross-Cultural Adaptation And Psychometric Properties Of The Thai Version Of The Neurophysiology Of Pain Questionnaire, Pichet Pasangkayo Jan 2021

Cross-Cultural Adaptation And Psychometric Properties Of The Thai Version Of The Neurophysiology Of Pain Questionnaire, Pichet Pasangkayo

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Pain neurophysiology knowledge is hypothesized to influence pain beliefs and physical performance in individuals with chronic low back pain (LBP). Valid and reliable measures of such knowledge is important to evaluate the pain treatment on this domain as well as to understand its role in both physical and psychological functions of individuals with chronic pain. This study aimed to culturally adapt the revised Neurophysiology of Pain Questionnaire into Thai (T-rNPQ), using the Functional Assessment of Chronic Illness Therapy (FACIT) methodology, and to evaluate its reliability and validity. Two hundred sixty-three individuals with chronic LBP completed the T-rNPQ and seven …

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Effect Of Pongol Methyl Ether On Cancer Stem Cell Phenotypes In Human Non-Small Cell Lung Cancer Cells, Arnon Silapech Jan 2021

Effect Of Pongol Methyl Ether On Cancer Stem Cell Phenotypes In Human Non-Small Cell Lung Cancer Cells, Arnon Silapech

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cancer stem cells (CSCs) are an important therapeutic target. The therapeutic agents targeting CSCs should lead to improved clinical outcomes. This study demonstrated the CSC suppressing activity of pongol methyl ether (PME), a pure compound from Millettia erythrocalyx Gagnep. CSC-suppressing effects were evaluated by colony formation assay, anchorage independent growth assay, spheroid formation assay and detection of CSC markers. The related CSC cell signals were evaluated by Western blot, immunofluorescence and molecular docking analysis. Proteins affected by PME treatment were subjected to bioinformatic analysis. Protein–protein interaction (PPI) networks were constructed by the Search Tool for Interactions of Chemicals (STITCH). The …

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The Effect Of Population Structure On Economic Development: Thailand's Provincial Panel Data, Satayu Pattarakijkusol Jan 2021

The Effect Of Population Structure On Economic Development: Thailand's Provincial Panel Data, Satayu Pattarakijkusol

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research investigates the effects of demographic change, the change of labor supply, and human capital on Thailand’s economic development. This will help shed light on the relationship between population (quantitatively and qualitatively) and economic development. The demographic dividends, the neoclassical growth Solow-Swan model, and human capital are adopted as the conceptual framework for this research. The secondary panel data at the provincial level from government officials will be used for statistical analysis. Fixed effect or random effect with lagged dependent variable is introduced into the estimated model. The finding suggests that the labor productivity, employment level, share of the …

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The Efficacy Of Universal Ceramic Polishing Kit On The Surface Roughness Of Various Ceramic Types, Ekaluck Poosanthanasarn Jan 2021

The Efficacy Of Universal Ceramic Polishing Kit On The Surface Roughness Of Various Ceramic Types, Ekaluck Poosanthanasarn

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this vitro study was to determine the effect of polishing performance of a universal ceramic polishing kit on the surface roughness of various ceramics. The ceramic specimen size 5 x 7 x 4 mm of lithium disilicate glass ceramic (IPS e.max CAD, Ivoclar Vivadent, Liechtenstein), translucent zirconia (VITA YZ XT, VITA Zahnfabrik, Germany) and zirconia-reinforced lithium silicate (Celtra Duo, Dentsply Sirona, United States) (n=8) were fixed with clear resin in PVC block, 14 mm in diameter. The specimens were ground with fine diamond bur for 15 seconds to simulate clinical gross contouring.The two-step polishing process started with …

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The Effects Of The Oral Exercises On The Oral Function Of People With Dementia, Kwanrutai Somsak Jan 2021

The Effects Of The Oral Exercises On The Oral Function Of People With Dementia, Kwanrutai Somsak

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this study was to examine the effects of the home-based oral exercises on the oral function in people with mild to moderate dementia. The patients with mild to moderate dementia at King Chulalongkorn Memorial Hospital, who were randomly allocated to an experimental group (n = 11), were asked to perform 3 home-based oral exercises for 3 months while those in a control group (n = 11) did not do any oral exercises. The oral function including maximum tongue pressure (MTP), oral diadochokinesis (ODK) rates of /ta/, /ka/, /pa/, swallowing function (modified water swallowing test: MWST), and oral …

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Antifungal, Physical, And Mechanical Properties Of Tissue Conditioner Incorporated With Zinc Oxide Nanoparticles, Woraporn Homsiang Jan 2021

Antifungal, Physical, And Mechanical Properties Of Tissue Conditioner Incorporated With Zinc Oxide Nanoparticles, Woraporn Homsiang

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study evaluated the antifungal, physical, and mechanical properties of tissue conditioner incorporated with different amounts of zinc oxide nanoparticles (ZnOnps) at different storage times (0, 7, and 14 days). Specimens of 0, 5, 10, 15 wt% ZnOnps, or 15 wt% nystatin incorporated into tissue conditioner were fabricated. The direct contact test (n=6) was performed to evaluate the antifungal effect against C. albicans suspension. Scanning electron microscopy and energy dispersive X-ray spectroscopy (n=6) were used to observe the amount and distribution of superficial zinc element. The penetration depth (n=6) and tensile bond strength (n=8) were evaluated following ISO 13139. The …

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Investment Model Of Commitment To Parasocial Interaction And Purchase Intention Among Beauty Youtuber Followers, Parima Kosakarn Jan 2021

Investment Model Of Commitment To Parasocial Interaction And Purchase Intention Among Beauty Youtuber Followers, Parima Kosakarn

Chulalongkorn University Theses and Dissertations (Chula ETD)

Internet celebrities, such as Youtuber, have become an important figure in influencing purchase intention among viewers. This effect was linked to the parasocial interaction, which is prominently studied in communication and marketing fields. This research aimed to broaden this link by using a social psychological theory. Thus, the purpose of this research was to examine the effect of commitment (according to the Investment Model of Commitment Processes) and parasocial interaction on purchase intention of endorsed beauty products. Data were collected using internet-based survey from 181 participants, who were (1) Youtube users i.e., having Youtube accounts, (2) subscribing to a channel …

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Testing Of A New Job Crafting Measure And Intervention To Enhance Thai Healthcare Professionals' Motivation, Work Engagement And, Job Performance, Pichaya Rochanadumrongkul Jan 2021

Testing Of A New Job Crafting Measure And Intervention To Enhance Thai Healthcare Professionals' Motivation, Work Engagement And, Job Performance, Pichaya Rochanadumrongkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

The present research consisted of two studies. In Study I, the objective was to develop and validate the job crafting measure in related to the levels of motivation, work engagement and job performance in Thai healthcare professionals using structured interview and structure equation model (SEM). Qualitative method using the interview (N = 20) was employed to extract employees’ experiences of crafting their job and explore additional dimension of job crafting. The results of the interview revealed an additional dimension of job crafting namely "humor” for Thai Job Crafting Behavior scale (Thai JCB) (physical crafting, relational crafting, cognitive crafting and humor). …

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A Multi-Time-Point Study Of Newborn Self-Regulation And Child Self-Regulation In The First Two Years Of Life: The Mediating Effects Of Child Anger Temperament And Quality Of Mother-Child Interaction, Pimjuta Nimmapirat Jan 2021

A Multi-Time-Point Study Of Newborn Self-Regulation And Child Self-Regulation In The First Two Years Of Life: The Mediating Effects Of Child Anger Temperament And Quality Of Mother-Child Interaction, Pimjuta Nimmapirat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Studies on the development of child self-regulation during the first two years of life are limited. This study examined the association between newborn self-regulation at 1 month old and child self-regulation at 2 years old, with the child anger temperament and quality of mother-child interaction at 1 year and 2 years of age as the nature and nurture mediators for child selfregulation. The participants were 322 mother-child dyads in Chomthong and Fang districts, Chiangmai. The study was a multiple time-point design with a longitudinal data collection from the mothers and children at 1 month, 1 year, and 2 years of …

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Facebook And Depression In Covid-19 Pandemic: The Role Of Time Spent On Information Overload And Depressive Symptoms With Trait Rumination As A Moderator, Vidchuda Taechajinda Jan 2021

Facebook And Depression In Covid-19 Pandemic: The Role Of Time Spent On Information Overload And Depressive Symptoms With Trait Rumination As A Moderator, Vidchuda Taechajinda

Chulalongkorn University Theses and Dissertations (Chula ETD)

The current COVID-19 pandemic has led to concerns for health and well-being, especially when the quarantine strategy such as social isolation has been implemented. Since social media has become an essential source of information, it might overwhelm its users by providing too much information which could yield many negative psychological outcomes, including depressive symptoms. The proposed research is designed to investigate the role of time spent on Facebook for searching and receiving information about COVID-19, as well as trait rumination on information overload and depressive symptoms. Non-clinical 140 active Facebook users aged between 18 to 34 who live in Bangkok …

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Effectiveness Of A Social Health Security Program In Improving Financial Risk Protection Against The Health Expenditures Of The Insured Populations In Four Districts Of Nepal: A Mixed Method Study, Gaj Bahadur Gurung Jan 2021

Effectiveness Of A Social Health Security Program In Improving Financial Risk Protection Against The Health Expenditures Of The Insured Populations In Four Districts Of Nepal: A Mixed Method Study, Gaj Bahadur Gurung

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Most low and low-middle income (LMICs) countries adopting National Health Insurance (NHI) programs to achieve Universal Health Coverage are struggling to implement the program and thus have failed to achieve the expected outputs. The Nepal NHI program initiated in 2016 has experienced numerous implementation challenges, due to inadequate inputs and throughput, resulting in negative output such adverse selection, poor health service delivery, low enrollment of the poor household and low annual non-renewals of the NHI membership. However, there is a lack of research that focuses on these problems. So, this study has two objectives. Firstly, delved into the NHI …

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Geographical Distribution Improvement Of Physicians In Thailand And Japan : A Comparative Longitudinal Secondary Data Analysis, Hiromichi Takahashi Jan 2021

Geographical Distribution Improvement Of Physicians In Thailand And Japan : A Comparative Longitudinal Secondary Data Analysis, Hiromichi Takahashi

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: The equitable distribution of healthcare workforces to all citizens is necessary to achieve health for all, and has been discussed and addressed in all countries including Thailand and Japan. The objective of this study was to longitudinally examine the change in the geographical distribution of physicians and related policies between 2008 and 2018 through a comparison between Thailand and Japan. Methodology: This research was a longitudinal comparative descriptive study. All data is open secondary data that can be downloaded in the government website. The number of physicians, the physician-population ratio, the Gini coefficient and the Spearman’s correlation coefficient between …

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Effectiveness Of Positive Deviance, A Behavior Change Approach, To Improve Knowledge, Attitude And Practices On Dengue Prevention And Control In Selected Slums In Islamabad, Pakistan : A Mixed-Method Study, Muhammad Shafique Jan 2021

Effectiveness Of Positive Deviance, A Behavior Change Approach, To Improve Knowledge, Attitude And Practices On Dengue Prevention And Control In Selected Slums In Islamabad, Pakistan : A Mixed-Method Study, Muhammad Shafique

Chulalongkorn University Theses and Dissertations (Chula ETD)

This is the first practical application of positive deviance on dengue in the two selected low-income slums of Islamabad which was conducted during June-October 2020. A total of 112 participants (56 for intervention and 56 for the control group) participated in the study. The intervention arm received the positive deviance intervention through the identified positive deviance role models during the regular PD sessions, role plays, illustration competitions, and songs for two months. Three surveys were conducted, before the intervention, after two months, and after four months to assess the changes in knowledge, attitude, and practices. At the baseline, no statistically …

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Effect Of Line Application On Action And Coping Plans On Exercise Adherence And Functional Performance For Older Adults With Knee Pain In Suburban Area Of Bangkok Metropolis, Thailand : A Quasi Experimental Study, Pattaraporn Piwong Jan 2021

Effect Of Line Application On Action And Coping Plans On Exercise Adherence And Functional Performance For Older Adults With Knee Pain In Suburban Area Of Bangkok Metropolis, Thailand : A Quasi Experimental Study, Pattaraporn Piwong

Chulalongkorn University Theses and Dissertations (Chula ETD)

The known advantage of exercise for older adults who had knee pain is limited by low adherence to an exercise program. LINE application on action and coping plans do improve exercise adherence, knee functional performance and reduce knee pain. This quasi-experimental study determined the effect of LINE application on action and coping plans on exercise adherence, self-efficacy for exercise (SEE) , specific self-efficacy (task, maintenance, recovery), functional performance including knee range of motion (ROM), time up and go (TUG), 30-second chair stand (30CST) , knee outcome for activities of daily living (KOS-ADLS) and knee pain scale among older adults with …

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A Policy Simulation Impact Of Tobacco Excise Tax Increase On Cigarette Consumption, Mortality, Medical Treatment Cost, Life-Years Gained, And Government Revenue In Indonesia, Ridhwan Fauzi Jan 2021

A Policy Simulation Impact Of Tobacco Excise Tax Increase On Cigarette Consumption, Mortality, Medical Treatment Cost, Life-Years Gained, And Government Revenue In Indonesia, Ridhwan Fauzi

Chulalongkorn University Theses and Dissertations (Chula ETD)

The study aimed to examine the impact of tobacco excise tax increase on cigarette consumption, mortality, medical treatment cost, life-years gained, and government revenue in Indonesia. The study consisted of two phases. First, the demand for cigarettes was analyzed using the two-part econometrics model. Data were retrieved from the National Socioeconomic Survey (SUSENAS) 2015, 2016, 2017, 2019, and 2020. The smoking participation was examined using logit specification, while the second part (smoking intensity) used the Generalized Linear Model (GLMs). Second, a compartmental model involving 65 million smokers was employed to assess the impact of different tobacco excise tax increased scenarios …

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Association Between Physical Activity And Mental Health Among University Students In Bangladesh : A Cross Sectional Study, Sanjida Sultana Jan 2021

Association Between Physical Activity And Mental Health Among University Students In Bangladesh : A Cross Sectional Study, Sanjida Sultana

Chulalongkorn University Theses and Dissertations (Chula ETD)

Introduction: Mental health is considered one of the most significant topics of public health as it makes up an integral part of a person’s ability to lead a fulfilling life. University students are one of the most vulnerable groups to be affected by mental health disorders due to a change in their life and societal pressure. Lifestyle modifications like physical activity can be one way to combat these Mental Health problems. Although a lot of research has been carried out to analyze the health impact of Physical exercise, impact of it on Mental Health still lags, especially during the Covid-19 …

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Effectiveness Of Blended Learning Program For Cyber Sexual Harassment Prevention Among Female High School Students In Bangkok, Thailand, Siriporn Santre Jan 2021

Effectiveness Of Blended Learning Program For Cyber Sexual Harassment Prevention Among Female High School Students In Bangkok, Thailand, Siriporn Santre

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cyber sexual harassment is increasing to be one of public health problem among youths. This study aimed to evaluate the effectiveness of blended learning program on knowledge, attitudes, intention to cope with cyber sexual harassment, behavioral coping strategies, and cyber sexual harassment among female high school students in Bangkok, Thailand. A quasi-experimental study design was conducted between May 2021 to October 2021. Total 112 students (56 in intervention and 56 in control group) were selected. The intervention group participated in blended learning program for 12 weeks, while the control group did not receive any program. Blended learning program based on …

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Assessment Of Knowledge, Attitude And Usage On Personal Protective Equipment Among Mechanical Maintenance Workers Of A Power Generation Unit In Thailand, Titiphorn Tankian Jan 2021

Assessment Of Knowledge, Attitude And Usage On Personal Protective Equipment Among Mechanical Maintenance Workers Of A Power Generation Unit In Thailand, Titiphorn Tankian

Chulalongkorn University Theses and Dissertations (Chula ETD)

A Power Generation Unit has duty of electric power supply to the people by producing and distributing electric power. The mechanical maintenance department is one part of their responsibility to achieve the target. However, 207 accident cases were reported during 2012 to 2019. The main causes were found to be unsafe act and unsafe condition including improper usage and lack of personal protective equipment (PPEs). Thus, knowledge, attitude regarding to PPEs, its usage, and factors related to PPEs usage of mechanical maintenance workers need to be assessed. This survey study collected data through self-response questionnaire from 379 mechanical maintenance workers …

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Work-Related Musculoskeletal Disorders, Psychosocial Factors, Work Productivity, And Work Ability Among Garment Factory Workers In Myanmar, Tun Win Oo Jan 2021

Work-Related Musculoskeletal Disorders, Psychosocial Factors, Work Productivity, And Work Ability Among Garment Factory Workers In Myanmar, Tun Win Oo

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background - Work-related musculoskeletal disorders (WRMSD) are the most common occupational problem worldwide. The magnitude of WRMSD is worsened by the physical and psychological factors in different occupations. The global burden of WRMSD comprises the second most common cause of disability; most frequent back pain, measured by Years lived with disability (YLDs) worldwide. Workability also plays a crucial role that links with productivity and WRMSD. Musculoskeletal disorders are also one of the most common causes of YLDS in the working-age group (20-54Years) take in more than 45% of the proportion. Sewing machine operators are one of the common occupational sectors …

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Factors Associated To Mental Health And Stress Among Frontline Workers At Suvarnabhumi Airport During Covid-19 Pandemic, Thailand : A Cross-Sectional Study, Toonlaya Direkwutthikun Jan 2021

Factors Associated To Mental Health And Stress Among Frontline Workers At Suvarnabhumi Airport During Covid-19 Pandemic, Thailand : A Cross-Sectional Study, Toonlaya Direkwutthikun

Chulalongkorn University Theses and Dissertations (Chula ETD)

During COVID-19 pandemic,the frontline airport workers are the first group of people who have to screening all passengers from other countries to control and mitigate the imported case at the point of entry. The effects of COVID-19 are deeply down to individual health, especially the frontline airport workers who perform screening duties at the airport. The anxiousness and stress can occur from scarcity of equipment and afraid to be infected and can affects mental health and stress. This study is aimed to investigate the association between socio-demographic, job characteristics, and personal preventive measure factors to the mental health and stress …

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Prevalence And Associated Factors Of Food Insecurity During Covid-19 Pandemic In Bangkok, Thailand : A Cross-Sectional Study, Wimonmanee Mekkhum Jan 2021

Prevalence And Associated Factors Of Food Insecurity During Covid-19 Pandemic In Bangkok, Thailand : A Cross-Sectional Study, Wimonmanee Mekkhum

Chulalongkorn University Theses and Dissertations (Chula ETD)

The prevalence of food insecurity (FI) in Thailand has fluctuated throughout time. The COVID-19 pandemic had a substantial impact on Thailand's food system and the factors that contribute to food insecurity differ greatly across developed and developing countries. Consequently, this study may contribute as a step in achieving the SDGs by 2030. The aim was to estimate the prevalence and associated factors of food insecurity during COVID-19 pandemic among Bangkokian. A cross-sectional study was conducted over 440 Bangkokians and data were collected through self-administrated. The questionnaire included the general characteristics, associated factors and the Food Insecurity Experience Scale (FIES) in …

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Effects Of Selected Aroma Compounds On Physiological Activities And Emotions, Akarat Sivaphongthongchai Jan 2021

Effects Of Selected Aroma Compounds On Physiological Activities And Emotions, Akarat Sivaphongthongchai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Current literature has revealed the effects and therapeutic properties of a wide variety of aromatic compounds but studies on the inhalation effects of single aromatic compounds in terms of central nervous system, emotional states and autonomic nervous system are still very limited. So, this study aimed to examine the physiological and emotional effects of selected volatile compounds inhalation namely d-borneol (BO), d-camphor (CH), methyl eugenol (ME), methyl chavicol (MC) using scientific techniques on autonomic nervous system (ANS), self-evaluated questionnaire on emotional states and brain wave activities. Sweet almond oil was used as a carrier oil and a diluent control. This …

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A Development Of Disaster Risk Profile In Public Healthcare System During Flood Situation : A Case Study Of Nakhon Sawan City Municipality, Nakhon Sawan Province, Thailand, Kodchakorn Krutphong Jan 2021

A Development Of Disaster Risk Profile In Public Healthcare System During Flood Situation : A Case Study Of Nakhon Sawan City Municipality, Nakhon Sawan Province, Thailand, Kodchakorn Krutphong

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research begins with the idea of the disaster risk assessment included in the disaster management’s well recognized international framework, the Sendai Framework for Disaster Risk Reduction. Then, the idea settles from the risk assessment concept combined with the emergency management knowledge that has the critical infrastructure topic, including the public healthcare system. The flood disaster is the kind of disaster that frequently occurs in Thailand and the study area, Nakhon Sawan City Municipality. Thus, this research aims to study disaster risk profiles in the public healthcare system in a specific local area. The outcome from this research is the …

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