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Articles 4531 - 4560 of 6481
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Access To Malaria Diagnostic Testing, Anti-Malarial Treatment And Long-Lasting Insecticidal Nets Among Immigrant Workers In Yala Province, Southern Thailand, Tinzar Naing
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: In Southeast Asia, trans-border migration from neighboring countries into Thailand is a well-known phenomenon. Population movement and migration is a factor having significant implications for vector-borne disease transmissions. Objectives: This study aims to assess migrants’ access to malaria diagnosis and treatment in Yala province who have had fever in the previous three months and to evaluate the coverage and utilization of ITNs (insecticidal nets). Methodology: A survey was conducted among 414 immigrant workers, in which information was sought on socio-demography, history of fever, health seeking behaviours, net ownership and utilization. Survey analysis was employed. Results: As key findings, 36.5% …
Evaluation Of The Outcomes And Regression Rate After Early Treatment For Retinopathy Of Prematurity Treatment In King Chulalongkorn Memorial Hospital, Yothin Titawattanakul
Evaluation Of The Outcomes And Regression Rate After Early Treatment For Retinopathy Of Prematurity Treatment In King Chulalongkorn Memorial Hospital, Yothin Titawattanakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Primary objectives: To study the unfavorable outcomes and assess the regression rate after early treatment protocol for the ROP in KCMH. - Secondary objectives: To study the complications and evaluate the progression and recurrence of ROP requiring retreatment after early treatment protocol for the ROP in KCMH. To identify the independent risk factor for the Retinopathy of Prematurity development in KCMH. - Design: The Retrospective descriptive study and retrospective cohort study. - Participants: The study included all premature infants who were screened ROP in King Chulalongkorn Memorial Hospital from January 2009 to January 2014. - Method: The data retrieved from …
Heuristics Used In Credibility Judgment Of Health Information On Facebook, Yaninee Petcharanan
Heuristics Used In Credibility Judgment Of Health Information On Facebook, Yaninee Petcharanan
Chulalongkorn University Theses and Dissertations (Chula ETD)
Facebook users worldwide had been facing challenges of information credibility. This study aimed to address this issue among Thai Facebook users by focusing on health information in particular, through a lens of heuristic approach. Data were collected from 50 informants by in-depth interviews and 480 responses from online surveys. All participants were at least 18 years old with a minimum of one year experience in using Facebook. The results revealed three different processes and five heuristics, namely, reputation heuristic, authority heuristic, expectancy violation heuristic, persuasive intense heuristic, and bandwagon heuristics that participants adopted when making a credibility judgment of health …
In Vitro Safety And Permeation Assessments Of Lidocaine Loaded In Dissolving Microneedle Patch For Ocular Administration, Sirikool Thamnium
In Vitro Safety And Permeation Assessments Of Lidocaine Loaded In Dissolving Microneedle Patch For Ocular Administration, Sirikool Thamnium
Chulalongkorn University Theses and Dissertations (Chula ETD)
The challenge in ocular drug delivery have brought much attention in pharmaceutical research. Efforts have been made to improve the low bioavailability causing by physiological limitations of ophthalmic drug administration. Topical lidocaine solution is a popular choice for ocular treatment, but less than 5% of topically applied dose reached to the target site. Lidocaine loaded in dissolving microneedle patch was considered a good alternative approach to treating eyes. The study aimed to investigate the cytotoxicity of the lidocaine loaded in dissolving microneedle administration against human corneal epithelial cells (HCECs) as well as ex vivo drug target localization with tissue penetration. …
Effect Of Extraction Solvents On Biological Activities Of Murraya Paniculata Leaves In Cosmetic Application, Siriruethai Ruanmai
Effect Of Extraction Solvents On Biological Activities Of Murraya Paniculata Leaves In Cosmetic Application, Siriruethai Ruanmai
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this study was to evaluate and compare the antioxidant activity and tyrosinase inhibition activity of Murraya paniculata (Linn.) Jack leaves extract (MPE) obtained from different extraction solvents for the use of cosmetic purposes. The result showed that 75 % ethanolic extract presented the highest antioxidant activity (IC50 = 1.43 mg/mL), the total phenolic content of 66.12 mg GAE/g and the total flavonoids content of 7.83 mg QE/g. All of the obtained extracts had low tyrosinase inhibitory activity. The final MPE lotion contained 1 %w/w of 75 % ethanolic extract dissolved in 50 %w/w of propylene glycol, 20 …
Projection And Determinants Of Cognitive Ability Among Older Persons In Thailand : Role Of Education, Paolo Miguel Vicerra
Projection And Determinants Of Cognitive Ability Among Older Persons In Thailand : Role Of Education, Paolo Miguel Vicerra
Chulalongkorn University Theses and Dissertations (Chula ETD)
This thesis examines the role of education on cognitive ability among the older population of Thailand. The nationally-representative data primarily utilised in this thesis is 2016 Population Change and Well-being in the Context of Aging Society. Other datasets had been used in selected themes within this thesis. Multiple analytic approaches had been applied to this study to show various effects of education gradients on cognitive functioning. In the first study, education and other covariates including income, health status, living arrangement, and social participation among others had been analysed by gender to test if the significant factors would be similar. It …
Wage Compensation Differentials For Job Risk Between Formal And Informal Workers, Pinyada Suwannarat
Wage Compensation Differentials For Job Risk Between Formal And Informal Workers, Pinyada Suwannarat
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research estimates compensating wage differentials for job risks for formal and informal workers in Thailand, the latter of whom are not covered by prevailing labor laws. Using data from the National Statistical Office’s Thai Labor Force Survey for years 2012 to 2018 merged with job fatality risk collected by the Social Security Office, the results show that the fatality risk rate has a positive, significant effect on wages. The value of statistical life for the median formal workers is 79.33 million baht compared to 41.5 million baht for the median informal worker. Also, we analyze the relationship between self-reported …
Effects Of Upper Extremity Positions And Movements And Breathing Patterns On Chest Wall Kinematics And Sensation Of Dyspnea In Patients With Chronic Obstructive Pulmonary Disease, Chathipat Kruapanich
Effects Of Upper Extremity Positions And Movements And Breathing Patterns On Chest Wall Kinematics And Sensation Of Dyspnea In Patients With Chronic Obstructive Pulmonary Disease, Chathipat Kruapanich
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this study were to 1) study the influences of the upper extremity (UE) positions and 2) the combination of UE movements coordinated with breathing patterns on chest wall movements and sensation of dyspnea in patients with chronic obstructive pulmonary disease (COPD). Furthermore, the results were also compared to those of the healthy subjects. We invited forty-two subjects, 21 patients with mild to moderate COPD whose aged, gender, and physical activity were matched to healthy subjects, to participate in this study. In the first part of this study, all participants’ chest wall movements and dyspnea were evaluated while …
Development Of Ecoregion Criteria Through Assessment Of Changing Floating Vegetation: A Case Study Of Intha Communities In Inlelake, Myanmar, Saint N/A
Chulalongkorn University Theses and Dissertations (Chula ETD)
The Inle Lake ecoregion, one of the fresh water ecoregions in the Global 200 list of ecoregions, is facing impacts of sedimentation from upland catchments. Sediment loads and soil sediment characteristics from degraded forest of Kalaw catchment shallowed and reduced plant nutrients in the Inle Lake ecosystems where used to be well recognized for the balancing between Intha livelihoods and natural production of littoral and pelagic zones. This study aimed to assess causes of ecological function change in terms of high sediment loads influencing Intha livelihoods; floating vegetation and to propose criteria for ecoregion development concerning sustainable floating vegetation yields …
Microencapsulation Of Probiotics Using Goat Milk And Konjac Glucomannan Hydrolysate Via Spray Drying, Sudhinee Harindhanavudhi
Microencapsulation Of Probiotics Using Goat Milk And Konjac Glucomannan Hydrolysate Via Spray Drying, Sudhinee Harindhanavudhi
Chulalongkorn University Theses and Dissertations (Chula ETD)
Probiotics are beneficial for health when consuming in a sufficient amount. However, probiotics are not tolerant to high temperatures in food processing. Microencapsulation is one technique that using to entrap probiotic cells for applying in food products. Therefore, this research is aimed to study the application of konjac glucomannan hydrolysate (KGMH) in the combination of goat milk to encapsulate Lb. casei-01 by using microencapsulation techniques via spray drying. There were three main parts of this research. Firstly, KGMH from 15-25% (w/w) KGM were determined for prebiotic activity score (PAS) in in vitro. Besides, the positive effect of KGMH in goat …
Replacement Of Milk Fat With Other Fats In Processed Cheese Analogues, Pachara Pomsang
Replacement Of Milk Fat With Other Fats In Processed Cheese Analogues, Pachara Pomsang
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research is aimed to develop healthy processed cheese for Thai consumers by studying consumer needs, the physicochemical and sensory properties of the developed processed cheese. Thai consumers who concerned about their health in Bangkok (n=422) participated in a survey and 72.7% of the consumers had positive intention to the healthy cheesed product in sliced type. Eighty percent of the consumers expected their cheese product to be fortified with healthy ingredients such as antioxidants and omega fatty acids. Four processed cheese prototypes with different milk fat replacements (rice bran oil (RBO), soybean oil (SBO), palm oil (PO), and fish oil …
การสังเคราะห์งานวิจัยที่เกี่ยวข้องกับวิธีการวัดความสว่างของป้ายไฟ, ประดิษฐ์ สาระอ่อน
การสังเคราะห์งานวิจัยที่เกี่ยวข้องกับวิธีการวัดความสว่างของป้ายไฟ, ประดิษฐ์ สาระอ่อน
Chulalongkorn University Theses and Dissertations (Chula ETD)
งานวิจัยนี้มีวัตถุประสงค์เพื่อศึกษาตัวแปรที่เกี่ยวข้องกับวิธีการวัดความสว่างของป้ายไฟ ใช้วิธีการสังเคราะห์ เอกสาร โดยใช้คำสำคัญที่เกี่ยวข้องกับวิธีการวัดความสว่างป้ายไฟ การสืบค้นเอกสารในฐานข้อมูลออนไลน์ ในช่วงระหว่าง ปี พ.ศ. 2540 – 2562 กลุ่มตัวอย่างในการวิจัยที่นำมาสังเคราะห์ คือ บทความวิจัย วิทยานิพนธ์ และรายงานเชิงเทคนิค จำนวน 39 เรื่อง แล้วนำมาจำแนกข้อมูลด้วยแบบบันทึกคุณลักษณะเอกสาร จากนั้นทำการคัดเลือกเอกสารที่ตรงตาม เกณฑ์การคัดเลือก ได้จำนวน 15 เรื่อง การวิเคราะห์ข้อมูลในการศึกษาครั้งนี้เป็นการวิเคราะห์เชิงคุณลักษณะ โดยแบ่ง ออกเป็นสามกลุ่ม กลุ่มแรกเป็นข้อมูลทั่วไปของเอกสารกลุ่มตัวอย่าง กลุ่มที่สอง เป็นตัวแปรที่เกี่ยวข้องกับการวัดความ สว่าง และกลุ่มที่สาม เป็นวัตถุประสงค์ของการศึกษาที่ส่งผลต่อการเลือกเครื่องมือวัดและวิธีการวัดความสว่างป้ายไฟ ผลการวิเคราะห์ข้อมูลจากกลุ่มตัวอย่างสามารถสรุปได้ดังนี้ 1.) ลักษณะของป้ายไฟ ได้แก่ ป้ายไฟแบบภาพนิ่ง และป้ายไฟแบบภาพเคลื่อนไหว 2.) เครื่องมือวัดความสว่างป้ายไฟ ได้แก่ Luminance meter, HDR Camera และ Imaging Photometer 3.) ตัวแปรที่เกี่ยวข้องกับการวัดความสว่างป้ายไฟ ได้แก่ ลักษณะของป้ายไฟ ความสูงของการ ติดตั้งป้ายไฟ ระยะห่างของการวัด ขนาดของป้ายไฟ และสภาพพื้นที่หรือบริบทที่ทำการวัดป้ายไฟ 4.) วิธีการวัดความ สว่างของเครื่องมือ Luminance meter ได้แก่ การวัดแบบหลายจุดแล้วหาค่าเฉลี่ย การวัดแบบจุดซ้ าที่จุดเดิมแล้วหา ค่าเฉลี่ย การวัดแบบสัดส่วนสี และการวัดแบบต่อเนื่องโดยต่อสายสัญญาณ 5.) เครื่องมือวัดทุกชนิดสามารถใช้วัดความ สว่างป้ายไฟแบบภาพนิ่งได้ ส่วนป้ายไฟแบบภาพเคลื่อนไหวจำเป็นต้องใช้เครื่องมือ luminance meter ด้วยวิธีการวัดซ้ำและการวัดต่อเนื่องด้วยการต่อสายสัญญาณ
Ecological Risk Assessment Of Heavy Metals In Soils From An Informal E-Waste Dismantling Site, Buriram Province, Thailand, Nisakorn Amphalop
Ecological Risk Assessment Of Heavy Metals In Soils From An Informal E-Waste Dismantling Site, Buriram Province, Thailand, Nisakorn Amphalop
Chulalongkorn University Theses and Dissertations (Chula ETD)
The research aimed to investigate the contamination and fractionations, and evaluate the ecological risk posed by heavy metals in the e-waste site in Daeng Yai and Ban Pao e-waste dismantling sites, Buriram Province, Thailand. The soil samples were taken from e-waste houses (EW), and e-waste open-burning sites (OB) as representatives of the e-waste sites, while soils from paddy fields (PF), non-e-waste houses, and groundwater wells represented the surrounding area, and the reference site was located 5 km away from the e-waste dismantling site. The soil samples were digested by aqua regia by the microwave digester for total heavy metal determination, …
Enrichment, Characterization And Application Of Bacterial Consortia For Degrading 2-Mercaptobenzothiazole In Rubber Processing Wastewater, Saowaluk Krainara
Enrichment, Characterization And Application Of Bacterial Consortia For Degrading 2-Mercaptobenzothiazole In Rubber Processing Wastewater, Saowaluk Krainara
Chulalongkorn University Theses and Dissertations (Chula ETD)
Benzothiazoles is widely used as vulcanized accelerator in rubber industry. The high volume of 2-MBT usages resulted in its release into the environment and can cause adverse health impacts. This study aimed to obtain efficient 2-MBT-degrading bacteria for wastewater application. The bacterial consortia were enriched by incubating rubber wastewater sludge in a medium containing 2-MBT for 28 days followed by a stepwise acclimation by gradually increasing 2-MBT concentrations in an NH4Cl-containing medium for 76 days. The process significantly increased the bacterial number and changed the dominant populations and degradative genes. Among these consortia, the EN consortium had the highest specific …
Selective Oxidation Of H2s In Biogas To Sulfur On V2o5 Catalyst Dispersedon Ceo2-Mo2 (M = Ti, Si, Zr) Mixed Oxides, Benjamaporn Tudkesorn
Selective Oxidation Of H2s In Biogas To Sulfur On V2o5 Catalyst Dispersedon Ceo2-Mo2 (M = Ti, Si, Zr) Mixed Oxides, Benjamaporn Tudkesorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
In this research, the characteristics and catalytic performances of V2O5catalysts supported on mixed oxides CeO2-MO2 (M = Ti, Si, Zr) as compared to the commercial CeO2 supported ones were studied in the selective catalytic oxidation of H2S in biogas to sulfur at 130oC. The mixed-oxide supports were prepared by co-precipitation method with 3 wt.% vanadium loading by wet impregnation method. From the XRD and Raman spectroscopy results, all the catalysts exhibited high dispersion of V2O5 on the supports with the 1:1 molar ratio CeO2-SiO2 mixed oxide showed the highest conversion of H2S at ̴ 73% and low selectivity of SO2 …
Comparative Study On The Effectiveness Of Myofunctional Therapy Of The Tongue After Frenectomy In Ankyloglossia, Nattakarn Povichit
Comparative Study On The Effectiveness Of Myofunctional Therapy Of The Tongue After Frenectomy In Ankyloglossia, Nattakarn Povichit
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: This study's objective of was investigate the effectiveness of myotherapy on tongue mobility and tongue function after surgical correction in ankyloglossia. Method: This study was carried out in 15 subjects assigned to the control group (n=5). The other 10 individuals with ankyloglossia were randomly received frenectomy alone (F; n=5) and frenectomy performed with tongue myofunctional therapy (FM; n=5). Tongue myofunctional therapy was performed 1 day after surgery, and 3 times a day for 3 months. Age, gender, height, weight, IBM, Kotlow's free tongue movement, maximal interincisal mouth opening (MIO), interincisal mouth opening with tongue tip to maxillary incisive papillae …
Evaluation Of Maxillary Sinus On Anatomical Characteristics And Related Factors Using Cone Beam Computed Tomography Images, Nutcha Benjaphalakron
Evaluation Of Maxillary Sinus On Anatomical Characteristics And Related Factors Using Cone Beam Computed Tomography Images, Nutcha Benjaphalakron
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective: The aim of this study was to evaluate prevalence of the anatomical characteristics in maxillary sinuses; and its association with sex, age, tooth area and dental status using cone beam computed tomography (CBCT). Methods: Retrospectively reviewed CBCT images of maxillary sinuses from 370 sinuses in 185 patients at the Faculty of Dentistry, Chulalongkorn University were evaluated. Residual ridge height (RRH), lateral wall thickness (LWT), sinus septa, posterior superior alveolar artery (PSAA), membrane thickness (MT) and ostium were evaluated and compared according to sex, age, tooth area and dental status. Results: Mean RRH was 12.13 ± 3.64 mm. Mean LWT …
Development Of Cell-Penetrating Peptides Targeting Nuclear And Extra-Nuclear Signaling Pathways In Cancer Cells, Panthita Kaewjanthong
Development Of Cell-Penetrating Peptides Targeting Nuclear And Extra-Nuclear Signaling Pathways In Cancer Cells, Panthita Kaewjanthong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Growth factors and hormones often mediate their biological effects through series of protein-protein interaction between cytoplasmic signaling molecules or transcription factors. Interfering of these protein-protein interactions has been shown to reduce or inhibit biological and growth responses to various growth factors and hormones. We previously demonstrated that progesterone receptor (PR) contains a polyproline domain (PPD) which directly interact to Src homology 3 (SH3) domain-containing molecules and expression of PR-PPD inhibits EGFR-mediated NSCLC cell proliferation. In this study, we investigated that the introduction of PR-PPD by cell-penetrating peptide could inhibit EGF-induced NSCLC cell proliferation. PR-PPD was attached to a cancer-specific CPP, …
Roles Of Lin28 Proteins In Cholangiocarcinoma, Nattapong Puthdee
Roles Of Lin28 Proteins In Cholangiocarcinoma, Nattapong Puthdee
Chulalongkorn University Theses and Dissertations (Chula ETD)
LIN28 is an RNA-binding protein, a known as regulator of microRNAs biogenesis and play a role in multiple cellular functions such as stem cell maintenance, cell metabolism and implicated in oncogenesis. In cancer study, LIN28 protein is frequently expressed and associated with tumor aggressiveness and poor disease outcome. Previous studies have shown that paralog-LIN28B was upregulated in during CCA development. However, the role of LIN28B in cholangiocarcinogenesis remains largely unknown. The present study, we found LIN28B is overexpressed in CCA patients' tissues. Overexpression of LIN28B in cholangiocytes-MMNK-1 cells showed that LIN28B enhanced cell proliferation, clonogenic potential, and promoted epithelial-to mesenchymal …
Cyp3a And Drug Transporters Activity Changes In Thai Elderly With Or Without Chronic Kidney Disease Using A Microdose Cocktail, Punyabhorn Rattanacheeworn
Cyp3a And Drug Transporters Activity Changes In Thai Elderly With Or Without Chronic Kidney Disease Using A Microdose Cocktail, Punyabhorn Rattanacheeworn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Thai general population has become more “aged society” (>60 years old) and chronic kidney disease (CKD) is one of major public health problems in Thailand. Ageing and CKD are known to affect pharmacokinetics which generally determines drug exposure in plasma and site of action. Due to the related mechanisms are still unclear, cytochrome P450 (CYP)3A and drug transporters activity changes were investigated in Thai elderly with or without CKD compared to healthy adults using a microdose cocktail. This study was conducted in 3 groups of subjects: Group 1, healthy young subjects; Group 2, healthy elderly subjects; Group 3; elderly …
Development Of Niosome Containing Ace Inhibitor/Cyclodextrin Complexes As An Ophthalmic Delivery For Lowering Intraocular Pressure, Hay Marn Hnin
Development Of Niosome Containing Ace Inhibitor/Cyclodextrin Complexes As An Ophthalmic Delivery For Lowering Intraocular Pressure, Hay Marn Hnin
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purpose of this study was to develop a stable niosomal eye drop containing angiotensin converting enzyme (ACE) inhibitor for lowering intraocular pressure. Three ACE inhibitors i.e., captopril, quinapril and fosinopril (FOS) were used in this study. Their inclusion complexes formation with parent CDs i.e., alphaCD, betaCD and gammaCD were determined. All drugs represented 1:1 stoichiometry inclusion complex with each CD. Of these, FOS/gammaCD complex showed the highest stability constant. Kinetic degradation study confirmed that FOS showed the lowest degradation in the presence of gammaCD. The obtained results of solution- and solid-state characterizations including molecular docking supported the true inclusion …
Development And Optimization Of Self-Microemulsifying Astaxanthin Delivery System Using The Design Of Experiment (Doe) Approach, Mo Mo Ko Zin
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purpose of this research was to develop and optimize a self-microemulsifying delivery system (SMEDS) to improve dissolution rate of poor soluble compound AST by mixture experimental design. The solubility of AST was analyzed with various excipients so that the appropriate oil, surfactant, and cosurfactant were figured out. Through the findings about the microemulsion existence area, the pseudoternary phase diagrams were constructed for selecting the optimum combination of excipients in a formulation of SMEDS. The optimized LCT-SMEDS obtained from the design space was composed of 19.59% castor oil (oil; X1), 62.34% Cremophor® RH 40 (surfactant; X2), and 18.03% Tween® 80 …
Chemical Modifications Of Α-Mangostin For Cytotoxic Study On Lung Cancer Cell Lines, Nan Yadanar Lin Pyae
Chemical Modifications Of Α-Mangostin For Cytotoxic Study On Lung Cancer Cell Lines, Nan Yadanar Lin Pyae
Chulalongkorn University Theses and Dissertations (Chula ETD)
α-Mangostin is a natural oxygenated and prenylated xanthone, which is mainly isolated from the pericarps of Garcinia mangostana. It possesses numerous pharmacological properties and promising therapeutic effects. However, the limitations of α-mangostin such as highly hydrophobicity and poor bioavailability hider its therapeutic applications. To overcome these drawbacks of α-mangostin, chemical modifications have been performed to discover the improved analogs. Herein, two semi-synthetic approaches to obtain new α-mangostin derivatives were investigated by the modifications of the phenolic hydroxy groups at C-3 and C-6 positions involving Smiles rearrangement to install amine functional groups and the addition reaction of isocyanate to form the …
Method Development For Determination Of Ss-Agonists Using Colorimetric And Electrochemical Sensors, Atchara Lomae
Method Development For Determination Of Ss-Agonists Using Colorimetric And Electrochemical Sensors, Atchara Lomae
Chulalongkorn University Theses and Dissertations (Chula ETD)
This dissertation focused on the development of analytical sensors for quantitative analysis of various electroactive compounds such as β-agonists and neurotransmitters, which could be considered as important indicators for food-safety monitoring, drug doping control in sports, clinical testing, and health care inspection. Up to date, colorimetry and electrochemistry are the two attractive approaches that have extensively been employed as analytical sensing tools, due to their simple operation and interpretation, fast analysis time, good ability of coupling with other techniques, and high capability of miniaturization. With these two detection platforms, this dissertation would then be divided into two main parts: (1) …
Facial Features Detection System For Classifying Critical Situation Of Brain Surgery Postoperative Patients, Bhatarasiri Slakkham
Facial Features Detection System For Classifying Critical Situation Of Brain Surgery Postoperative Patients, Bhatarasiri Slakkham
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purpose of this research is to create a model for detecting a help signal from stroke patients after surgery. Through artificial intelligence technology by detecting via a patient's face image to help reducing workload and hospital’s expenses. The data is collected from the Stroke Unit, King Chulalongkorn Memorial Hospital at the intensive care unit (ICU). The total number of samples is 8 persons, all these 8 were screened by the doctor and completed the consent forms before data being collected. The method of data collection is performed by attaching 3 small cameras on three positions: the left, right and …
Genetic And Pathogenic Characterizations Of Newly Emerged Duck Tembusu Virus Isolated In Thailand, Patchareeporn Ninvilai
Genetic And Pathogenic Characterizations Of Newly Emerged Duck Tembusu Virus Isolated In Thailand, Patchareeporn Ninvilai
Chulalongkorn University Theses and Dissertations (Chula ETD)
Duck Tembusu virus (DTMUV), a mosquito-borne Flavivirus, caused an emerging disease in ducks in Asia since 2010, resulting in significant economic loss in duck producing industry. After the initial outbreak in 2013, DTUMV cases have been continuously detected in several duck farms in Thailand. Thus, the disease surveillance and the genetic characterization of the Thai DTMUV are necessary. Therefore, the first objective of this dissertation was to investigate the genetic characteristic of DTMUVs circulating in Thailand. Our retrospective study demonstrated the presence of DTMUV in the Thai ducks since 2007. Phylogenetic analysis of the polyprotein gene sequence revealed that the …
Spatial And Temporal Variation Of Heavy Metals In Pm10 And Pm2.5 Surrounding E-Waste Dismantling Community In Buriram Province, Siriwipha Chanthahong
Spatial And Temporal Variation Of Heavy Metals In Pm10 And Pm2.5 Surrounding E-Waste Dismantling Community In Buriram Province, Siriwipha Chanthahong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Spatial and temporal variation of heavy metals in PM10 and PM2.5 surrounding e-waste dismantling community at Buriram Province were investigated during April and September. The aims of this study were to monitor and compare between those found at non- (NS) and e-waste dismantling house (ES) and open dump area (OD), and identify potential sources of heavy metals including As, Cr, Cu, Cd, Ni, Mn, Pb, Zn and Fe. The heavy metals in PM were analyzed by ICP-MS. The results showed that average PM2.5 and PM10 were highest at NS (33.8 ±18.8 µg/m3) and OD (57.6 ±17.5 µg/m3), respectively. PM2.5 was …
ปริมาณการปลดปล่อยโลหะหนักและการรับสัมผัสผ่านทางการหายใจจากการรื้อแยกซากโทรทัศน์แบบไม่ถูกสุขลักษณะ, คคนานต์ โกญจนาวรรณ
ปริมาณการปลดปล่อยโลหะหนักและการรับสัมผัสผ่านทางการหายใจจากการรื้อแยกซากโทรทัศน์แบบไม่ถูกสุขลักษณะ, คคนานต์ โกญจนาวรรณ
Chulalongkorn University Theses and Dissertations (Chula ETD)
งานวิจัยนี้มีวัตถุประสงค์เพื่อศึกษาปริมาณโลหะหนักทั้ง 11 ชนิดที่ดูดซับไว้บนอนุภาคฝุ่นที่มีขนาดต่ำกว่า 2.5 ไมโครเมตร (PM2.5) และระหว่าง 2.5 – 10 ไมโครเมตร (PM10-2.5) ที่เกิดจากการรื้อแยกซากโทรทัศน์แบบหลอดรังสีภาพคาโทด ณ ตำบลแดงใหญ่ อำเภอบ้านใหม่ไชยพจน์ จังหวัดบุรีรัมย์ แล้วนำไปคำนวณอัตราการปลดปล่อยโลหะหนักต่อผลิตภัณฑ์ และประเมินความเสี่ยงต่อสุขภาพจากการได้รับสัมผัสโลหะหนักทางการหายใจ ทำการเก็บตัวอย่างอนุภาค PM2.5 และ PM10-2.5 จากการรื้อแยกซากโทรทัศน์ด้วยชุดปั๊มเก็บตัวอย่างอากาศเฉพาะบุคคลที่ต่อกับ Personal Modular Impactors (PMI) ภายในตู้ปิด (Chamber) ขนาด 0.6 ลูกบาศก์เมตร โดยแบ่งการเก็บตัวอย่างเป็น 2 รูปแบบ คือ เก็บตัวอย่างตลอดกระบวนการและแบบแยกขั้นตอน แต่ละรูปแบบใช้ตัวอย่างซากโทรทัศน์ 30 เครื่อง วิเคราะห์ปริมาณสารหนู แบเรียม เบริลเลียม แคดเมียม โครเมียม ทองแดง แมงกานีส นิกเกิล ตะกั่ว พลวง และสังกะสี ด้วยเครื่อง ICP-MS ผลการศึกษาพบว่าการรื้อแยกซากโทรทัศน์ทั้งสองรูปแบบปลดปล่อยตะกั่ว สังกะสี และแบเรียมสูงกว่าโลหะนักอื่นๆ ในขณะที่เบริลเลียมมีค่าต่ำกว่าขีดความสามารถที่เครื่องวัดได้ (ND) ปริมาณการปลดปล่อยโลหะหนักรวมทั้ง 10 ชนิดใน PM2.5 และ PM10-2.5 จากการรื้อแยกซากโทรทัศน์ในพื้นที่มีค่าเท่ากับ 1,499.60 และ 1,166.46 มิลลิกรัมต่อปี ตามลำดับ จากการประเมินความเสี่ยงของผู้รื้อแยกซากโทรทัศน์ในกรณีที่ได้รับสัมผัสโลหะหนักในระดับที่ปลดปล่อยจากการรื้อแยกซากโทรทัศน์ภายใน chamber ที่เป็นระบบปิดจำนวน 30 เครื่องต่อสัปดาห์ และทำงานต่อเนื่องเป็นเวลา 30 ปี ค่า HI ที่แสดงถึงระดับความเสี่ยงรวมจากการรับสัมผัสโลหะหนักที่ไม่ก่อมะเร็ง (สารหนู แบเรียม แคดเมียม โครเมียม ทองแดง แมงกานีส นิกเกิล ตะกั่ว พลวง และสังกะสี) ทั้งใน PM2.5 และ PM10-2.5 มีค่ามากกว่า 1 ซึ่งเกินเกณฑ์ที่ยอมรับได้ และระดับความเสี่ยงรวม …
The Effect Of Different Surface Treatments On Tensile Bond Strength Of Acrylic Denture Teeth And Light-Cured Composite Resin, Chotinut Wongpornpirot
The Effect Of Different Surface Treatments On Tensile Bond Strength Of Acrylic Denture Teeth And Light-Cured Composite Resin, Chotinut Wongpornpirot
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study evaluated the effect of different surface treatments on the tensile bond strength between acrylic denture teeth and composite resin. Maxillary lateral incisors of conventional acrylic denture teeth (Yamahachi New Ace) and highly cross-linked acrylic denture teeth (Trubyte Bioform IPN teeth) were ground on the labial surfaces. Each type of denture teeth were divided into six groups (n=10) according to surface treatment procedures which are no surface treatment (control), methyl methacrylate treatment (MMA) for 180 seconds, methyl formate-methyl acetate mixture (MF-MA) solution at a ratio of 25:75 (v/v) treatment for 15 seconds, composite bonding agents, MMA (180 seconds) with …
The Effect Of Surface Treatment On Shear Bond Strength Of Resin-Matrix Ceramics And Dual-Cured Resin Cement, Nuttapong Bunchuansakul
The Effect Of Surface Treatment On Shear Bond Strength Of Resin-Matrix Ceramics And Dual-Cured Resin Cement, Nuttapong Bunchuansakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective:The purpose of this study was to evaluate the effect of Tetrahydrofuran (THF) on shear bond strength (SBS) between resin matrix ceramics (RMC) materials and resin cements.Methods:RMC materials(Enamic,Cerasmart,Shofu block HC) were cut into square piece of approximately 6x6x2 mm3 and randomly divided into 10 groups following the surface treatment:no treatment(C),adhesive agent(Ad),THF1min(T1),silane/adhesive(Si/Ad),THF1min/adhesive(T1/Ad),THF1min/silane/adhesive(T1/Si/Ad),THF2mins/silane/adhesive(T2/Si/Ad),THF3mins/silane/adhesive(T3/Si/Ad),THF4mins/silane/adhesive(T4/Si/Ad),THF5mins/silane/adhesive(T5/Si/Ad).Specimens were cemented to composite resin rod with resin cement and kept them in water at 37oC for 24 hours.The SBS measurements were tested with universal testing machine.Failure modes were examined by stereomicroscope.The SBS values were analyzed with two-way ANOVA and Bonferroni’s post hoc tests (α = 0.05).Results: The highest …