Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Medicine and Health Sciences (3086)
- Social and Behavioral Sciences (981)
- Medical Sciences (830)
- Engineering (502)
- Physical Sciences and Mathematics (489)
-
- Nursing (445)
- Education (401)
- Dentistry (357)
- Life Sciences (355)
- Pharmacy and Pharmaceutical Sciences (342)
- Sports Sciences (286)
- Veterinary Medicine (284)
- Public Health (272)
- Business (246)
- Economics (220)
- Sociology (220)
- Chemistry (191)
- Arts and Humanities (183)
- Architecture (181)
- Psychology (161)
- Law (156)
- Health and Physical Education (145)
- Mental and Social Health (145)
- Other Mental and Social Health (143)
- Public Affairs, Public Policy and Public Administration (136)
- Environmental Sciences (133)
- Civil and Environmental Engineering (126)
- Communication (120)
- Communication Technology and New Media (120)
- Mass Communication (120)
- Keyword
Articles 6001 - 6030 of 6481
Full-Text Articles in Entire DC Network
The Effect Of Uncertainty Management Program On Quality Of Life Among Vietnamese Women With Post Mastectomy, Xuan Ha Thi Nhu
The Effect Of Uncertainty Management Program On Quality Of Life Among Vietnamese Women With Post Mastectomy, Xuan Ha Thi Nhu
Chulalongkorn University Theses and Dissertations (Chula ETD)
The aim of this study was to test the effect of the Uncertainty Management Program (UMP) on quality of life among Vietnamese women at 3-weeks post mastectomy. The quasi-experimental design with posttest only was conducted in 115 women with post mastectomy who were assigned in experimental group (n=57) and control group (n=58). The experimental group received the UMP and routine care while the control group received only routine care. Participants were assessed at 3-weeks post mastectomy using the modified Quality of Life Index Scale Vietnamese version with Cronbach's alpha coefficient of .81. It was found that at 3-weeks post-mastectomy, the …
Patient's Perception And Satisfaction On Dental Implant Therapy By Postgraduate Dental Students And Experienced Dentists, Pat Vipattanaporn
Patient's Perception And Satisfaction On Dental Implant Therapy By Postgraduate Dental Students And Experienced Dentists, Pat Vipattanaporn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective: To evaluate and compare patient's perception and satisfaction between patients who received dental treatment from postgraduate dental students and experienced dentists. Material and methods: This descriptive cross-sectional study was performed in patients who received the dental implant from Faculty of dentistry Chulalongkorn University. A data collection of patient's perception and satisfaction was done by questionnaire which was sent by mail. The questionnaire contained 23 statements including 7 statements of demographic data, 7 statements of perception, and 9 statements of satisfaction. The patient had to answer through the one-best-answer multiple choices and visual analog scale (VAS). Results: The 382 participants …
Comparison Of The Accuracy Of Surgical Guided Template Produced From Intraoral Scan Technique And Model Scan Technique For Implantation Using Computer Assisted Implant Surgery, Prudsaporn Kiatkroekkrai
Comparison Of The Accuracy Of Surgical Guided Template Produced From Intraoral Scan Technique And Model Scan Technique For Implantation Using Computer Assisted Implant Surgery, Prudsaporn Kiatkroekkrai
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objectives: To compare the accuracy of implant position placed by CAIS technique using surgical guided template produced by intraoral scan and model scan. Materials and methods: Patients who needed single tooth implant restoration were enrolled in this study and devided into two groups randomly according to the surface scan technique (n=30 each group). Intraoral scans were done using the Trios Scanner (3shape). While, diagnostic casts were scanned by D900L lab scanner (3shape). The templates were design by the clinician using coDiagnostiX software (Dental Wings Inc.). Implant surgery were performed according to fully CAIS protocol. CoDiagnostiX software was used to compare …
In Vitro Effect Of L-Ascorbic Acid On Gingival Fibroblast To Regulate Wound Healing., Tatcha Chaitrakoonthong
In Vitro Effect Of L-Ascorbic Acid On Gingival Fibroblast To Regulate Wound Healing., Tatcha Chaitrakoonthong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background and Objective: Besides closing the wound by intrinsic properties like migration and proliferation, gingival fibroblasts produce a major source of extracellular matrix especially collagen and play a major role in oral wound healing. Vitamin C or L-ascorbic acid has diverse functions in the body, including an essential role in hydroxylation reactions which is necessary for collagen formation. Whether L-ascorbic acid can promote gingival wound healing through inducing proliferation of fibroblasts is of our interest. The aim of this study is to evaluate the effect of L-ascorbic acid on gingival fibroblasts behaviors to promote wound healing in vitro. Materials and …
Comparative Study Of In Vivo Bone Regeneration Using Chitosan/Dicarboxylic Acid Scaffold Implanted With Human Periodontal Ligament Cells, Teerawat Sukpaita
Comparative Study Of In Vivo Bone Regeneration Using Chitosan/Dicarboxylic Acid Scaffold Implanted With Human Periodontal Ligament Cells, Teerawat Sukpaita
Chulalongkorn University Theses and Dissertations (Chula ETD)
After tooth loss, a consequent atrophy of the alveolar process always takes place and adversely affect the reconstruction process especially by dental implant. A novel chitosan/dicarboxylic acid scaffold (CS/DA scaffold) has been developed and proven to be an excellent candidate material in bone tissue engineering. This study aimed to evaluate the effects of a CS/DA scaffold with and without seeded primary human periodontal ligament cells (hPDLCs) in mouse calvarial defect model. Eighteen mice were divided into 3 groups of 6 each. Four-millimeter calvarial defects were created on both side of parietal bone and implanted with either CS/DA scaffold or CS/DA …
Induction Of S100a7 Expression From Mechanical Stress-Induced Human Dental Pulp Cells And Its Effect On Osteoclastogenesis, Hataichanok Charoenpong
Induction Of S100a7 Expression From Mechanical Stress-Induced Human Dental Pulp Cells And Its Effect On Osteoclastogenesis, Hataichanok Charoenpong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Mechanical injuries of dental pulp tissues could lead to root resorption by osteoclast/odontoclast. S100A7 has been demonstrated to involve in inflammatory processes and potentially involved in bone destruction. However, the roles of S100A7 in dental pulp have not been reported. Therefore, this this study aimed to investigate the effect of mechanical stress on S100A7 expression in human dental pulp cells (hDPCs) and to investigate the effect of S100A7 protein on osteoclast differentiation. HDPCs were stimulated with in vitro compressive loading. Cell viability was determined using MTT assay. Real-time PCR (qPCR) and ELISA were utilized to determine the mRNA and protein …
The Application Of Prostacyclin In Promoting Angiogenesis Of Dental Pulp Tissue In A Three Dimensional Organ Culture System, Sonntana Seang
The Application Of Prostacyclin In Promoting Angiogenesis Of Dental Pulp Tissue In A Three Dimensional Organ Culture System, Sonntana Seang
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Dental pulp vitality can be threatened by carious or iatrogenic exposure that can lead to pulp tissue loss. The formation of a vascular network is crucial to provide a suitable environment for tissue regeneration. Thus, promoting angiogenesis is essential for successful pulpal repair in regenerative endodontics therapy. Iloprost, a prostacyclin analog, promotes vascularization in several organs such as, heart, lung, and corneal. Previously, it has been demonstrated that, iloprost induced pulpal blood flow and enhanced dentin formation in a rat mechanical pulp exposure model. However, the angiogenic effect of iloprost on the human dental pulp vasculature remains unknown. Objective: …
Differential Dendritic Cell Responses To Candida Species, Thu Nguyen Ngoc
Differential Dendritic Cell Responses To Candida Species, Thu Nguyen Ngoc
Chulalongkorn University Theses and Dissertations (Chula ETD)
Mannan in the outermost layer of Candida cell wall may be the first molecules that interact with host dendritic cells (DCs) and activate immune responses that determine disease outcomes. However, little is known how different mannan structures of common Candida species affect DC activation and T cell responses. Thus, this work compared the effects of mannans of Candida albicans, Candida tropicalis, Candida glabrata, Candida krusei, Candida parapsilosis and Candida dubliniensis on bone marrow-derived DC (BMDC) responses in mice. C. albicans and C. tropicalis mannan could not activate DC maturation, however, they induced IFN-gamma production which consequently provoked Th1 responses. C. …
Cd103+ Tissue Resident Memory T Cells In Oral Lichen Planus, Phisut Amnuaiphanit
Cd103+ Tissue Resident Memory T Cells In Oral Lichen Planus, Phisut Amnuaiphanit
Chulalongkorn University Theses and Dissertations (Chula ETD)
Oral lichen planus (OLP) is a chronic inflammatory disease that results from a disorder of infiltrating T cells. Tissue resident memory T cells (TRM cells) are CD103-expressing T cells that persist within previously inflamed oral mucosa in the long term to provide locally rapid defensive responses against encountered pathogens. They are also speculated to be associated with some diseases including OLP. This study aimed to determine the number and the proportion of CD103+ TRM cells in the OLP lesions as compared to the normal mucosa. Immunohistochemical study of CD3+, CD4+, CD8+ and CD103+ cells in 15 OLP tissues and 15 …
Expression Of Inflammatory Mediators In Cd103+ And Cd103- T Cells Isolated From Periodontitis Tissue, Benjarat Isaraphithakkul
Expression Of Inflammatory Mediators In Cd103+ And Cd103- T Cells Isolated From Periodontitis Tissue, Benjarat Isaraphithakkul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Despite the important role of tissue - resident memory T (TRM) cells in immunity and pathology of mucosal tissues, the study of tissue-resident memory T cells in periodontitis tissues is limited. Previous investigation in our laboratory identified the localization of TRM (CD103+ T cells) in periodontitis tissue. However, their function is not known. The aim of this study is to investigate the production of inflammatory mediators by CD103+ and CD103- T cells in periodontitis tissue. Human periodontal tissues were obtained from patients with severe chronic periodontitis. Intracellular cytokine staining was performed and expression of CD103, interferon gamma (IFN-γ), interleukin-17 (IL-17) …
Electrochemical Sensors For Human Papillomavirus Dna, C-Reactive Protein And Food Colorants Detections, Sakda Jampasa
Electrochemical Sensors For Human Papillomavirus Dna, C-Reactive Protein And Food Colorants Detections, Sakda Jampasa
Chulalongkorn University Theses and Dissertations (Chula ETD)
In this dissertation, electrochemical sensors for determination of medical biomolecular markers and food colorants were developed. The research can be divided into two parts. In the first part, electrochemical sensors for determination of clinically important biomarkers were studied. There was two subprojects based on the target markers. The first subproject was the development of electrochemical sensor for the simultaneous detection of high-risk human papillomaviruses (HPV) DNA type 16 and 18 as biomarkers for cervical cancer. In this work, a highly specific pyrrolidinyl peptide nucleic acid was employed as DNA capture probe for both target DNAs. A second PNA probe labeled …
Functional Surfactants In Lubricant For Microelectronic Industry, Chuenkamol Khongphow
Functional Surfactants In Lubricant For Microelectronic Industry, Chuenkamol Khongphow
Chulalongkorn University Theses and Dissertations (Chula ETD)
The functional surfactants, as the additional additives in the standard glycol-based lubricant were studied and optimized to reduce and protect the surface of the magnetic read/write head from deposited contaminants during the lapping processes. The scanning electron microscopy (SEM) and energy-dispersive x-ray spectroscopy (EDS) results identified that the black contamination was bismuth (Bi) particles, came out from lapping plate during the lapping process due to wear. Selected surfactants exhibited the results in reduce and prevent the deposition of contaminants by forming the micelle beyond their critical micelle concentration (CMC) values. We found that both polyethoxylate alcohol (PEAL) and quaternary amines …
Water/Dust Repellent Coatings For Wood Surface From 3-Aminopropyltriethoxy Silane-Quat 188, Tanate Tubtimtong
Water/Dust Repellent Coatings For Wood Surface From 3-Aminopropyltriethoxy Silane-Quat 188, Tanate Tubtimtong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Wetting and dust fouling on wood surface are big problems because of hydroxyl group and static charge on its surface. These problems could be minimized by surface modification which decreasing of hydroxyl groups and increasing of positive charges on wood surface. Many researches were reported about wetting issue but there were few studies directly involved to dust problem. In this research, 3-aminopropyltriethoxy silane (APTES) and 3-chloro-2-hydroxypropyltrimethyl ammonium chloride (Q188) were used to modify hydroxyl groups on wood surface to enhance wetting and dust repellency behavior of wood. The APTES-treated woods (AW) were prepared by immersion solution method and then were …
Probiotic Properties And Anti-Helicobacter Pylori Activity Of Lactic Acid Bacteria From Plant And Fermented Food Products, Sujitra Techo
Probiotic Properties And Anti-Helicobacter Pylori Activity Of Lactic Acid Bacteria From Plant And Fermented Food Products, Sujitra Techo
Chulalongkorn University Theses and Dissertations (Chula ETD)
Two hundred and thirty-eight strains of lactic acid bacteria (LAB) isolated from several plant-materials and fermented food products collected in Thailand were screening for antibacterial activity. Fifty-three strains which exhibited antimicrobial activity against Helicobacter pylori clinical strains, were selected and identified based on the phenotypic, chemotaxonomic characteristics and 16S rRNA gene sequence analysis. They were identified as Lactobacillus (Lb.) plantarum subsp. plantarum (3 strains), Lb. pentosus (10 starins), Pediococcus (P.) pentosaceus (2 strains), Lb. paracasei subsp. tolerans (1 strain), Lb. fermentum (5 strains), Enterococcus (En.) faecium (2 strains), En. casseliflavus (1 strain), Lactococcus (Lc.) garvieae subsp. garvieae (1 strain), Lc. …
Clinical Efficacy Of Biocellulose Wound Dressing Containing Silk Sericin And Polyhexamethylene Biguanide For Split-Thickness Skin Graft Donor Sites, Supamas Napavichayanun
Clinical Efficacy Of Biocellulose Wound Dressing Containing Silk Sericin And Polyhexamethylene Biguanide For Split-Thickness Skin Graft Donor Sites, Supamas Napavichayanun
Chulalongkorn University Theses and Dissertations (Chula ETD)
A biocellulose wound dressing composed of silk sericin as an accelerative wound healing component and polyhexamethylene biguanide (PHMB) as an antimicrobial agent which showed effective and safe wound treatment. A prospective, single-blinded, randomized controlled matched-pair study was designed to evaluate the safety and the clinical efficacy of the biocellulose wound dressing containing silk sericin and PHMB compared with Bactigras® in healthy volunteers (phase I clinical study) and in split-thickness skin graft (STSG) donor site wound treatment (phase II clinical study). There were 105 healthy volunteers in phase I clinical study. The results showed that the erythema and melanin levels of …
Anti-Aging Activity Evaluation Of Grammatophyllum Speciosum Extract For Development Into An Anti-Wrinkle Serum, Verisa Chowjarean
Anti-Aging Activity Evaluation Of Grammatophyllum Speciosum Extract For Development Into An Anti-Wrinkle Serum, Verisa Chowjarean
Chulalongkorn University Theses and Dissertations (Chula ETD)
Grammatophyllum speciosum Blume (Orchidaceae) is a large-sized orchid in Southeast Asia. The aim of this study was to evaluate G. speciosum pseudobulb extract for anti-aging activities, both in vitro and in vivo. In vitro anti-aging activity was performed using non-cell and cell-based assays. In vitro study, G. speciosum pseudobulb extract exhibited a high content of gastrodin, which was used as an active analytical marker. The total content of the antioxidant polyphenols in G. speciosum ethanolic extract was 48.19 ± 0.39 mg epigallocatechin gallate (EGCG) equivalent / g extract. The anti-collagenase enzyme activity of the ethanolic extract of the pseudobulb of …
Development Of Polyurethane Based Foam Dressing Impregnated With Silver Nanoparticles And Asiaticoside For Dermal Wound Treatment, Nantaporn Namviriyachote
Development Of Polyurethane Based Foam Dressing Impregnated With Silver Nanoparticles And Asiaticoside For Dermal Wound Treatment, Nantaporn Namviriyachote
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study was an innovation of polyurethane foam dressing containing silver nanoparticles and asiaticoside that aimed to treat dermal wounds. It consists of three essential properties; the natural polyols containing foam dressing could absorb exudate and maintain moisture in the wound bed, the silver could prevent and kill bacteria, the asiaticoside could accelerate wound healing. The foam dressing was produced and 2% of hydrophilic natural polyols of various types added. The characteristics were evaluated. Hydroxypropyl methylcellulose (HPMC), chitosan low MW (CLMW) and sodium alginate (Alg) were selected according to their high absorption capacity, low dehydration, good mechanical strength and low …
Free Radical Scavengers From Dendrobium Palpebrae, Napat Kyokong
Free Radical Scavengers From Dendrobium Palpebrae, Napat Kyokong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Phytochemical study of Dendrobium palpebrae Lindl. (Orchidaceae) afforded ten pure compounds. One of them was characterized as a new phenanthrene-phenanthraquinone derivative named dendropalpebrone, and nine known compounds were identified as gigantol, lusianthridin, nobilone, 3,7-dihydroxy-2,4,8-trimethoxyphenanthrene, 2,5-dihydroxy-4,9-dimethoxyphenanthrene, moscatilin, scoparone, 4,5,4'-trihydroxy-3,3'-dimethoxybibenzyl and dendroflorin. All of the isolated compounds were initially screened for their free radical scavenging activity via oxygen radical absorbance capacity assay, DPPH radical scavenging assay, deoxyribose degradation assay, and assay for intracellular antioxidant activity in H2O2-induced RAW 264.7 murine macrophage cells. Dendroflorin showed the most potent activity in all assays, especially in the deoxyribose degradation assay. It manifested an IC50 value …
Bioactive Compounds From Dendrobium Infundibulum, Salinee Na Ranong
Bioactive Compounds From Dendrobium Infundibulum, Salinee Na Ranong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Phytochemical study of the methanol extract from Dendrobium infundibulum (Orchidaceae) led to isolation of nine pure compounds including two new compounds (dendroinfundin A and dendroinfundin B) and seven known compounds (ephemeranthol A, moscatilin, aloifol I, batatasin III, 3,3'-dihydroxy-4,5-dimethoxybibenzyl, 3,4'-dihydroxy-3',4,5-trimethoxybibenzyl and dendrosinen B). Their structures were determined from their spectroscopic data. All compounds were then examined for their lipase and alpha-glucosidase inhibitory activities. Dendrosinen B (IC50 = 295.0±37.9 µM) showed moderate inhibitory activity against lipase when compared with orlistat (IC50 = 31.4±0.6 nM). Strong anti alpha-glucosidase agents were batatasin III (IC50 = 148.8±8.4 µM) and dendrosinen B (IC50 = 213.9±2.4 µM), …
Free Radical Scavenging Compounds From Dendrobium Parishii, Virunh Kongkatitham
Free Radical Scavenging Compounds From Dendrobium Parishii, Virunh Kongkatitham
Chulalongkorn University Theses and Dissertations (Chula ETD)
In this study, the EtOAc extract of Dendrobium parishii Rchb. f. was separated to obtain two new compounds including a bibenzyl derivative, 4,3′,4′-trihydroxy-3,5-dimethoxybibenzyl, and a bibenzyl-dihydrophenanthrene derivative, (−)-dendroparishiol, and five known compounds including flavanthrinin, moscatilin, 4,5,4′-trihydroxy-3,3′-dimethoxybibenzyl, dendrocandin E and asiatic acid. The structures of all of the isolated compounds were determined by analysis of spectroscopic data (NMR and HR-ESI-MS). They were then evaluated for antioxidant activities using DPPH free radical scavenging activity, deoxyribose degradation and oxygen radical absorbance capacity assays. Among the tested compounds, (−)-dendroparishiol showed the strongest free radicals reduction and was further investigated for antioxidant activity in H2O2-induced …
Chemical Constituents And Bioactivities Of The Leaves And Stems Of Pseuduvaria Fragrans, Wongvarit Panidthananon
Chemical Constituents And Bioactivities Of The Leaves And Stems Of Pseuduvaria Fragrans, Wongvarit Panidthananon
Chulalongkorn University Theses and Dissertations (Chula ETD)
Chemical investigation of the leaves and stems of Pseuduvaria fragrans resulted in the isolation of seven pure compounds, including a new benzophenone C-glycoside named pseuduvarioside and six known compounds comprising (-)-guaiol, (+)-isocorydine, cyathocaline, isoursuline, N-trans-feruloyltyramine and N-trans-coumaroyltyramine. The structure determination of the isolated compounds was carried out by analysis of their UV, HRS-ESI-MS and NMR data in comparison with previously reported values. All the isolates were evaluated for their α-glucosidase inhibitory activity. Only N-trans-feruloyltyramine and N-trans-coumaroyltyramine exhibited strong activity with IC50 values of 3.58 µM and 0.58 µM, respectively, as compared with the drug acarbose (IC50 985.6 µM). Kinetic studies …
Anatomical And Biomechanical Factors Associated With Plantar Fasciitis In Thai Male Conscripts, Pavinee Harutaichun
Anatomical And Biomechanical Factors Associated With Plantar Fasciitis In Thai Male Conscripts, Pavinee Harutaichun
Chulalongkorn University Theses and Dissertations (Chula ETD)
Etiology of plantar fasciitis among novice conscripts is multifactorial. The combination of all potential factors should be included for multivariate analysis to determine the significant predictors. The present study aimed to identify the intrinsic predictors of plantar fasciitis among novice conscripts. Two hundred and seventy healthy male conscripts who were without lower back or lower extremity pain prior to the commencement of military training were participated in this study. Intrinsic predictors which included individual, anatomical, and biomechanical variables were assessed at baseline. After 10 weeks of training, 113 participants were assessed again and classified as having (n = 71) or …
Comparisons Of The Four Square Step Test And The Four Square Step Test On Foam Surface In Their Accuracy To Discriminate Between Elderly With And Without Fall History, Phakkanut Mathurapongsakul
Comparisons Of The Four Square Step Test And The Four Square Step Test On Foam Surface In Their Accuracy To Discriminate Between Elderly With And Without Fall History, Phakkanut Mathurapongsakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
The aims of this study were 1) to investigate the intra-rater reliability, inter-rater reliability and concurrent validity of the four square step test with foam (FSST+foam) and 2) to compare the four square step test (FSST) and the FSST+foam in their accuracy for discriminating among faller elderly, non-faller elderly, and adults. Twelve participants (4 each group) were assessed by the FSST, FSST+foam, timed up and go test (TUG) and five times sit to stand test (FTSST). The intraclass correlation coefficient and correlation coefficient were calculated to determine the reliability and validity, respectively. To investigate the accuracy for discriminating between groups, …
Biomechanics Of Sit-To-Stand And Stand-To-Sit In Typical Children Aged 4 - 12 Years And Young Adults, Potjanun Mapaisansin
Biomechanics Of Sit-To-Stand And Stand-To-Sit In Typical Children Aged 4 - 12 Years And Young Adults, Potjanun Mapaisansin
Chulalongkorn University Theses and Dissertations (Chula ETD)
The aim of study is to investigate the biomechanical pattern of sit-to-stand and stand-to-sit movement in children aged 4 to 12 years and young adults. Seventy-six participants were separated into 4 groups as following: (1) 18 children aged 4-6 years; (2) 19 children aged 7-9 years; (3) 20 children aged 10-12 years; (4) 19 adults aged 18-25 years. All participants performed their preferred pattern of sit-to-stand and stand-to-sit movement. The results showed that two patterns of sit-to-stand movement were found including sit-to-stand with and without feet moving backward. Children performed sit-to-stand with and without feet moving backward while adults only …
Gas Sensing Response Of Nickel Doped Calcium Copper Titanate Thin Films Synthesized By Sol-Gel Method, Arisara Boontum
Gas Sensing Response Of Nickel Doped Calcium Copper Titanate Thin Films Synthesized By Sol-Gel Method, Arisara Boontum
Chulalongkorn University Theses and Dissertations (Chula ETD)
Nickel-doped calcium copper titanate (Ni-doped CCTO) thin films prepared by nickel oxide (NiO) and nickel (II) acetate (C4H6NiO4) have been synthesized using sol-gel method. Four layers of Ni-doped CCTO films with various nickel dopant concentrations including undoped film were deposited by a spin coating technique on silicon and alumina substrates. Each film layer was annealed at a fixed annealing temperature of 800 °C. All samples were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS) field emission scanning electron microscope (FESEM). Only the doped films prepared by NiO were analyzed by Raman spectroscopy. Moreover, the …
Effect Of 3-Methacryloxypropyltrimethoxysilane Modified Zinc Oxide Nanoparticles Incorporated In Polymethylmethacrylate Material On Antifungal, Optical And Mechanical Properties, Krid Kamonkhantikul
Effect Of 3-Methacryloxypropyltrimethoxysilane Modified Zinc Oxide Nanoparticles Incorporated In Polymethylmethacrylate Material On Antifungal, Optical And Mechanical Properties, Krid Kamonkhantikul
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aimed to evaluate 1) the characteristics of different amount of 3-methacryloxypropyltrimethoxysilane (MPS) deposited on zinc oxide nanoparticles (ZnOnps) by Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) before and after tetrahydrofuran washing, 2) the effect of different MPS amount deposited on ZnOnps incorporated in PMMA material on mechanical properties, and 3) the effect of different ZnOnps amounts with or without MPS incorporated in PMMA material on antifungal, optical and mechanical properties. The FTIR and TGA results showed the success of silanization. The monolayered silane molecules were parallelly oriented on the ZnOnps surface. The different MPS amounts (0-14.4 …
The Quality Of Complete Denture, Patient's Satisfaction, Oral Health-Related Quality Of Life, And Their Association, Nareudee Limpuangthip
The Quality Of Complete Denture, Patient's Satisfaction, Oral Health-Related Quality Of Life, And Their Association, Nareudee Limpuangthip
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objective of this study was to determine the association of complete denture quality, patient's satisfaction, and Oral Health-related Quality of Life (OHRQoL). A total of 126 complete denture wearers was interviewed for the primary outcome, OHRQoL, using Oral Impacts on Daily Performances (OIDP) index. Secondary outcomes were patient's satisfaction and masticatory performance. Denture retention and stability were scored following the conventional and Chulalongkorn University (CU)-modified Kapur criteria. Esthetic-assessment criteria was evaluated from patient's photographs. It was found that limited eating/chewing was the most common problem, and an ill-fitting denture was a primary cause of any reported problems. Unacceptable denture …
The Inflammatory Response Of Epithelial Cell To Corrosion Products From Recast Palladium -Silver Alloy, Verapol Singkarlsiri
The Inflammatory Response Of Epithelial Cell To Corrosion Products From Recast Palladium -Silver Alloy, Verapol Singkarlsiri
Chulalongkorn University Theses and Dissertations (Chula ETD)
In dentistry, there is an increase in alternative metals such as palladium or silver to add into noble metal alloys in order to improve properties and reduce cost. Apart from using other metals to replace gold or platinum, reuse is another way to save the cost. There are many studies on the recast dental alloys on mechanical properties and how many percentages of new alloys needed to add in the recasting process. It has been well accepted that amount of new and used alloys would affect the mechanical and physical properties. The biocompatibility of the alloys, however, has not been …
Associated Factors Of Hepatitis C Infection In Pregnantwomen At Outpatient Department Of Peoples Medical University And Hospital District Shaeed Benazir Abadsindh Province Pakistan, Akhlaque Hussain
Chulalongkorn University Theses and Dissertations (Chula ETD)
Purpose: The prevalence of hepatitis C is 3% of the world population with more the 3 million new cases are being reported, In Pakistan, the prevalence of hepatitis C virus Infection ranges from 8%-15% in the general population. In Pakistan about 13 million people are infected. Prevalence of hepatitis C in pregnancy has been studied across Pakistan and is reported with the range of 3.27%-8.9%. Methods: A descriptive cross sectional study was conducted between may to June 2018. in people's medical university at outpatient Department of gynaecology and obstetrics in district shaheed Benazir abad Sindh Pakistan. All pregnant Patient age …
Effectiveness Of An Educational Program To Promote The Safe Use Of Pesticide Among Vegetable Farmers In India : A Quasi Experimental Study, Ajit Pal Singh Raina
Effectiveness Of An Educational Program To Promote The Safe Use Of Pesticide Among Vegetable Farmers In India : A Quasi Experimental Study, Ajit Pal Singh Raina
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objectives: 1)To provide information on baseline use and Health impacts of pesticides. 2) To provide information on knowledge, attitude, and Practice for pesticide. 3) To design a self- explanatory and affordable educational tool for vegetable farmers which can be used to train farmers on safe use of pesticides and finally 4) To assess change in KAP score and reduction in pesticide exposure symptoms to farmers and their families. Methods: After developing a simple educational tool, its effectiveness was assessed by measuring change in mean scores of knowledge, attitude, practice (KAP) and in-home pesticide safety behavior in households of farmers. Pictorial …