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Stochastic Differential Equation Models On Sphere For Animal Migration, Viput Puttanugool
Stochastic Differential Equation Models On Sphere For Animal Migration, Viput Puttanugool
Chulalongkorn University Theses and Dissertations (Chula ETD)
Animal migration is a seasonal movement of a bundle of animals from place to place. A migration cycle is often annually and closely linked with the cyclic pattern of seasons. A short-distance migration can be modeled on a planar surface, but most animals have long-distance migrations, e.g., Arctic terns migrate from the North Pole to the South Pole; thus, their migration should be modeled on a spherical surface. In addition, the Brownian motion term is included in a model to represent noises and randomness of movements. This work aims to simulate their migration routes using stochastic differential equations (SDEs) on …
Effect Of Dealumination And Desilication Of Beta Zeolite On Performance Of Nickel Catalysts In Hydroisomerization For Bio-Jet Fuel Production, Warodom Hunsiri
Effect Of Dealumination And Desilication Of Beta Zeolite On Performance Of Nickel Catalysts In Hydroisomerization For Bio-Jet Fuel Production, Warodom Hunsiri
Chulalongkorn University Theses and Dissertations (Chula ETD)
-The Global aviation fuel consumption tends to increase. In recent years, the European Union has announced that fossil fuels jet fuel must be mixed with 10% biofuels in 2020. bio-jet fuel production has many processes such as biomass pyrolysis. or hydro-p
Roles Of Bacterial Toxin Receptor And Piwi-Interacting Rna Of Pacific White Shrimp Penaeus Vannamei In Response To Vibrio Parahaemolyticus-Causing Acute Hepatopancreatic Necrosis Disease Infection, Waruntorn Luangtrakul
Roles Of Bacterial Toxin Receptor And Piwi-Interacting Rna Of Pacific White Shrimp Penaeus Vannamei In Response To Vibrio Parahaemolyticus-Causing Acute Hepatopancreatic Necrosis Disease Infection, Waruntorn Luangtrakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Acute hepatopancreatic necrosis disease (AHPND) or Early mortality syndrome (EMS) caused by virulent strains of Vibrio parahaemolyticus AHPND (VPAHPND) has been a leading cause of significant losses of shrimp production. In this study, we aim to explore the response and the role of immune-related gene/protein and small RNA in the VPAHPND-infected shrimp. This research was divided into 2 parts. In the first part, we identified candidate genes of VPAHPND toxin receptor and further confirmed its function as a VPAHPND toxin receptor. APN has been reported as a Cry toxin from Bacillus thuringiensis, whose structure is similar to VPAHPND toxin. Therefore, …
Mineral Inclusions In Sapphire From Basalt - Related Deposit In Southern Vietnam, Vu Doan Thi Anh
Mineral Inclusions In Sapphire From Basalt - Related Deposit In Southern Vietnam, Vu Doan Thi Anh
Chulalongkorn University Theses and Dissertations (Chula ETD)
Sapphires in Southern Vietnam have been discovered in alluvial deposit derived from Cenozoic basalts. Sample collections for this study were taken from the most significant gem fields including Pleiku, Dak Nong, Di Linh, Binh Thuan, and Krong Nang. Several syngenetic mineral inclusions in these sapphires were classified as alkali feldspar, zircon, ferrocolumbite, pyrochlore, and iron oxides. Mineral chemical characteristics of these inclusions appearred to have evolved from alkaline felsic suite. Oxide mineral inclusions occurred in sapphire included hercynite, wüstite, and ilmenite. Ilmenite ranged in composition between Il49-54He34-40Mt7-10 and Il24-30He36-38Mt35-40 falling in ilmenite-hematite series. Wüstite with nonstoichiometry, (Fe2+0.3-0.9)(Ti3+<0.179Al3+≤0.6Cr3+<0.1 Fe3+≤0.46)£≤0.23O, was usually associated with hercynite inclusion clearly indicating cogenetic sapphire formation. Wüstite and sapphire appeared to have formed from the breakdown reaction of hercynite (hercynite = sapphire+wüstite). Titanohematite series and titanomagnetite series might have crystallized during iron-titanium reequilibration via subsolidus exsolution. U-Pb geochronology of zircon inclusion in these sapphires yielded between 35.5 ± 1.6 Ma (~35 Ma) and 14.73 ± 0.29 Ma (~15 Ma) for Krong Nang sapphire, 5.94 ± 0.13 Ma (~6 Ma) for Binh Thuan and Dak Nong sapphire, and 5.491 ± 0.077 Ma (~5.5 Ma) for Di Linh sapphire. These age constraints relate to the main Cenozoic basaltic eruptions in this region. Crystallization temperature of sapphire formation was estimated at about 561- 7810C using Ti-in-zircon thermometry.
Synthesis Of 1,2-Naphthoquinone Derivatives As Α-Glucosidase Inhibitors, Trang Pham Thi
Synthesis Of 1,2-Naphthoquinone Derivatives As Α-Glucosidase Inhibitors, Trang Pham Thi
Chulalongkorn University Theses and Dissertations (Chula ETD)
For a couple of decades the bioactivity of quinone has been considered as privileged structure-based drug design. In this research, 4-phenylamino, 4-alkylamino, 4-alkylphenylamino, 4-phenoxy and other derivatives of 1,2-naphthoquinone were synthesized, evaluated for their anti α-glucosidase activity and elucidated for their structure-activity relationship. The results indicated that multiple factors affecting to the α-glucosidase inhibition included π-π interaction, hydrophobic interaction and hydrogen bonding with the enzyme. In general, the main factor affecting the activity was the more favorable 1,2-dione production. The presence of electron withdrawing substituents on the phenyl ring and heteroatom linker bound to the quinone skeleton increased the activity. …
Improved Adaptive Fractional Order Differential Method For Medical Image Enhancement, Wasin Tranghiranyathorn
Improved Adaptive Fractional Order Differential Method For Medical Image Enhancement, Wasin Tranghiranyathorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
In this work, we propose a construction of a new 5x5 fractional order differential mask that uses sixteen directions of gradient operator and weights each pixel in the mask by the Euclidean distance from the center of the mask. Then, we apply this new mask to the Adaptive Fractional Differential Algorithm (AFDA). The AFDA allows the optimal fractional order of each pixel to be obtained using an adaptive function constructed based on the area feature of image. Experimental results for medical images, show that the AFDA with the new mask gives better image enhancement than the original AFDA. It makes …
Knight's Tours On Ringboards, Deficient 4 X N Chessboards And Some L-Boards, Wasupol Srichote
Knight's Tours On Ringboards, Deficient 4 X N Chessboards And Some L-Boards, Wasupol Srichote
Chulalongkorn University Theses and Dissertations (Chula ETD)
A (legal) knight's move is the result of moving the knight two squares horizontally or vertically on the board and then turning and moving one square in a perpendicular direction. A closed knight's tour is a sequence of knight's moves that visits every square on a given chessboard exactly once and returns to its start square. A closed knight's tour and its variations are studied widely over the rectangular chessboard or a three-dimensional rectangular box. For m,n > 2r, an (m,n,r)-ringboard or RB(m,n,r) is defined to be an m x n chessboard, denoted by CB(m x n), with the middle part …
Biofuel Production From Spent Coffee Grounds By Supercritical Ethyl Acetate, Wirasinee Supang
Biofuel Production From Spent Coffee Grounds By Supercritical Ethyl Acetate, Wirasinee Supang
Chulalongkorn University Theses and Dissertations (Chula ETD)
In this work, spent coffee grounds (SCGs) was used as the feedstock for biofuel production by supercritical ethyl acetate. The SCGs is waste obtained from coffee industrial that is continuously increasing every year. To make SCGs becomes more valuable, utilization of ethyl acetate as the extracting and reacting solvents for biofuel production via interesterification reaction. The characterization of SCGs sample showed that the moisture content of fresh SCGs was around 56 wt%. After oven drying, the moisture of SCGs was reduced to 12.76 %wt. To prolong the shelf-life of the sample and to minimize impact of hydrolysis on interesterification reaction, …
Sustainability Assessment Of Power Production By Chemical Looping Combustion, Watchara Uraisakul
Sustainability Assessment Of Power Production By Chemical Looping Combustion, Watchara Uraisakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study investigated the chemical looping combustion (CLC) process improvement for power production from energy management, system hydrodynamics, and sustainability perspectives. In the first part, the 3k factorial design was used for systematically investigating the operating variables that affect the thermal efficiency of the CLC combined with the humid air gas turbine (HAT) cycle. A set of operating variables, A) pressure of the air reactor, B) air compressor stages number, C) air compression methods, and D) air flow rate, were explored. The result showed that the highest thermal efficiency was at 55.87 % when operated at (A) 15 atm, (B) …
Drought Tolerant Gene Identification By Rice Genome Comparison And Gene Characterization In Arabidopsis Plant Model, Chutarat Punchkhon
Drought Tolerant Gene Identification By Rice Genome Comparison And Gene Characterization In Arabidopsis Plant Model, Chutarat Punchkhon
Chulalongkorn University Theses and Dissertations (Chula ETD)
Abiotic stresses, especially drought and salt stresses can affect plant growth and productivity. 'Kao Dawk Mali 105' ('KDML105') rice is one of the crops which has to face both drought and salt stresses as it is grown in rain-fed saline soil in the northeastern region of Thailand, where the irrigation is limited. CSSL104, a chromosome substitution line with 'KDML105' genetic background, was developed in order to improve drought tolerant ability of 'KDML105' rice by transferring the drought tolerant (DT)-QTL region from double haploid line, DH103. Photosynthesis parameters of CSSL104 and its parental lines, 'KDML105' and DH103, were investigated, when they …
Synthesis Of Sulfonamide Chalcones As Α-Glucosidase Inhibitors, I Putu Sukanadi
Synthesis Of Sulfonamide Chalcones As Α-Glucosidase Inhibitors, I Putu Sukanadi
Chulalongkorn University Theses and Dissertations (Chula ETD)
Diabetes mellitus occurs from deficiencies in insulin secretion or insulin resistance which leads over time to high risk for long-term macro-and microvascular complications. Diabetes mellitus type 2 contributes to more than 90% of all cases worldwide. One approach of treatment for this disorder is utilizing α-glucosidase inhibitors. Certain sulfonamides and chalcones are considered as viable candidates that are effective in reducing hyperglycemia. Forty-seven sulfonamide chalcones were synthesized by the Claisen-Schmidt reaction with various substituents on the A, B, and C-rings furnishing the desired products with 50-95 %yield. All compounds were-tested for α-glucosidase inhibitory activity. Twenty-nine compounds exhibited a very strong …
Sexual Behaviors Of Indochinese Long-Tailed Macaque Macaca Fascicularis In Comparison With Sundaic Long-Tailed Macaque, Prangmas Kumpai
Sexual Behaviors Of Indochinese Long-Tailed Macaque Macaca Fascicularis In Comparison With Sundaic Long-Tailed Macaque, Prangmas Kumpai
Chulalongkorn University Theses and Dissertations (Chula ETD)
Regarding to the previous studies reported that the past hybridization event between rhesus (Macaca mulatta; Mm) and long-tailed (M. fascicularis; Mf) macaques was occurred by the southward introgression of male Mm into Mf population, thus the Mf originating from Indochinese region carried higher level of genetic admixture of Mm ancestry than the Mf living in Sundaic region. Since it was reported that Mf are non-seasonal breeder while Mm are seasonal breeder, thus, it is interesting to compare the sexual behaviors between Indochinese and Sundaic Mf. Mf populations at Wat Haad Moon Kra Beau, Pichit province (WHM; 16° 51′N) and Khao …
Discrete-Time Risk Model Based On Zero Inflated Poisson Time Series, Siwarak Sawongnam
Discrete-Time Risk Model Based On Zero Inflated Poisson Time Series, Siwarak Sawongnam
Chulalongkorn University Theses and Dissertations (Chula ETD)
An important goal of actuary is to develop models for company portfolio and insurance products. Risk measurement is one of the essential measures that inform actuaries and risk managers about the degree to which the risk bearing entity. To have precise risk measure, we require an appropriate claim count process. The common claim count processes are usually constructed from the Poisson distribution. However, insurance data have generally excess zeros which causes the overdispersion. This violates the assumption of the Poisson distribution. Therefore, alternative distributions accommodating zero count are explored in literature. The zero inflated Poisson distribution is one of the …
Electrochemical Paper-Based Immunosensor For Biomarkers Detection, Suchanat Boonkaew
Electrochemical Paper-Based Immunosensor For Biomarkers Detection, Suchanat Boonkaew
Chulalongkorn University Theses and Dissertations (Chula ETD)
This dissertation focused on the development of electrochemical paper-based immunosensor for determining essential biomarkers by using a label-free immunoassay. This dissertation can be divided into four main parts. In the first part, an origami paper-based analytical device (oPAD) was developed for c-reactive protein (CRP) detection. oPAD was designed to combine the preparation of immunosensor and detection step into a single device. A gold nanoparticle modified graphene screen-printed carbon electrode (AuNPs/G/SPCE) was utilized to enhance the sensitivity of the electrode. The developed sensor was successfully applied to determine CRP in a certified serum sample. For the second part, an electrochemical paper-based …
The Internationlization Of Sport Industry: A Study Of Thailand Sport Equipment Firms, Apithai Bumrungpanictarworn
The Internationlization Of Sport Industry: A Study Of Thailand Sport Equipment Firms, Apithai Bumrungpanictarworn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Entering international markets is one of many key strategies to ensure high and sustainable growth of the firm. It refers to how firms want to do business activities and their engagement in foreign markets. Many studies on the international market have been focused on entry mode strategies which is one of the most critical decisions in a firm's internationalization strategy. This research aimed to examine which factors influenced the entry mode decisions to enter foreign markets for sports equipment firms. A qualitative approach and multiple case study technique were used in this research. Important theories related to entry mode, such …
Gonadal Sex Differentiation Of Rice Field Frog Hoplobatrachus Rugulosus (Wiegmann, 1834), Thrissawan Traijitt
Gonadal Sex Differentiation Of Rice Field Frog Hoplobatrachus Rugulosus (Wiegmann, 1834), Thrissawan Traijitt
Chulalongkorn University Theses and Dissertations (Chula ETD)
The rice field frog Hoplobatrachus rugulosus, a species widely distributed in Thailand, has potential to be a model in many fields of research. A preliminary study demonstrated that the gonadal differentiation in this frog showed tendency to be an undifferentiated type since all individuals had ovaries at complete metamorphosis. However, the information was still unclear. Therefore, this study aimed to investigate the chronology and pattern of gonadal sex differentiation as well as steroidogenic potential of gonadal tissues during development. The frog embryos were obtained by stimulating fertilization in laboratory under natural light and temperature conditions. Their developmental stage was identified …
Effects Of Social Interaction And Transformational Leadership On Sport Event Volunteers' Perception Of Team Member Exchange, Kasidech Treethong
Effects Of Social Interaction And Transformational Leadership On Sport Event Volunteers' Perception Of Team Member Exchange, Kasidech Treethong
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study contributes to the management of sport event volunteers, where particular team member exchange is crucial in promoting teamwork among sport event volunteers. The objectives of this study are 1) to examine the effects of social interaction and transformational leadership on the sport event volunteers' perception of team member exchange and 2) to examine the interaction effect between social interaction and transformational leadership on the sport event volunteers' perception of team member exchange. This study employed a field experiment and a post-experiment interview at the 2019 FIVB Volleyball Nations League Thailand. Subjects (n = 64) were assigned by stratified …
Recovery Of Isolated Pancreatic Isletsderived From Gut Leak-Induced Diabetes Type Ii Mouse Model, Adretta Soedarmanto
Recovery Of Isolated Pancreatic Isletsderived From Gut Leak-Induced Diabetes Type Ii Mouse Model, Adretta Soedarmanto
Chulalongkorn University Theses and Dissertations (Chula ETD)
Gut leak in the obese patient was known to be one of the predisposing factors causing diabetes type II. Indeed, the interleukin-10 (IL-10) plays a key role in gut mucosa homeostasis preventing the gut leak. Nevertheless, the linkage of diabetes type 2 caused by gut leak with IL-10 deficiency in the non-diabetes patient has not been investigated yet. Islets transplantation is known as the best alternative treatment for diabetes. The culture of isolated islets is still facing difficulties to preserve the morphology, viability, and functionality. Therefore, the present study was aiming to prove the concept of gut-leak on IL-10 deficient …
The Influence Of Sports Facilities' Accessibility, Motivation, And Satisfaction On Word-Of-Mouth And Re-Participation Intentions Of Athletes With Physical Disabilities, Thee Trongjitpituk
The Influence Of Sports Facilities' Accessibility, Motivation, And Satisfaction On Word-Of-Mouth And Re-Participation Intentions Of Athletes With Physical Disabilities, Thee Trongjitpituk
Chulalongkorn University Theses and Dissertations (Chula ETD)
More than a billion people are estimated to live with some form of disability, or about 15% of the world's population and the number is still growing. People with disabilities are less likely to participate in sports due to several physical barriers they face. In an effort to find ways to increase the sports participation rate of people with disabilities, the concept of marketing (satisfaction, word-of-mouth intention, and re-participation intention) was applied to the field of accessibility for the first time. This study consisted of three objectives: (1) to find out the dimension of sports facilities' accessibility and motivation, (2) …
Effect Of Dietary Microencapsulated Organic Acid And Essential Oil On Sow Performance And Nursery Piglet Growth Performance And Fecal Bacteria, Aprilia Rizky Riadini
Effect Of Dietary Microencapsulated Organic Acid And Essential Oil On Sow Performance And Nursery Piglet Growth Performance And Fecal Bacteria, Aprilia Rizky Riadini
Chulalongkorn University Theses and Dissertations (Chula ETD)
The effect of feed supplementation with microencapsulated organic acids and essential oils (MOE, Porcinate+) in feed was investigated according to sow and nursery pig growth performances, and fecal bacteria population. Experiment 1: healthy three hundred and twenty sows during its late gestation period (7 days before farrowing) until the weaning phase (28 days after farrowing) were randomly divided as control group (160 sows) which was fed with basal diet, and treatment group (160 sows), which was fed with basal diets supplemented with 2 kilograms (kg) of MOE in 1 ton of feed. Each of 4 replications was composed of 40 …
Porcine Reproductive And Respiratory Syndrome Virus: Genetic Diversity, Pathogenesis And Modified-Live Vaccines, Adthakorn Madapong
Porcine Reproductive And Respiratory Syndrome Virus: Genetic Diversity, Pathogenesis And Modified-Live Vaccines, Adthakorn Madapong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Porcine reproductive and respiratory syndrome virus (PRRSV) is a causative agent of PRRS that reproductive failure in sows and respiratory problems in piglets is the hallmark of the disease. Recently, several PRRSV modified live vaccines (MLV) are available, and vaccine selection is a concern. Therefore, the objectives of this study were: 1) to investigate the genetic diversity of Thai PRRSV isolates during 2001-2017; 2) to evaluate the pathogenicity of Thai PRRSV isolates; 3) to determine the efficacy of PRRSV MLV against Thai field PRRSV infection and 4) to investigate the effectiveness of PRRSV MLV when administered via intramuscular (IM) and …
Genetic Characteristics Of Antimicrobial Resistance In Escherichia Coli Isolated From Pigs, Pork And Humans In Thailand And Lao Pdr Border Provinces, Chanika Pungpian
Genetic Characteristics Of Antimicrobial Resistance In Escherichia Coli Isolated From Pigs, Pork And Humans In Thailand And Lao Pdr Border Provinces, Chanika Pungpian
Chulalongkorn University Theses and Dissertations (Chula ETD)
The objectives of this study were to monitor the prevalence of antimicrobial resistance (AMR) among Escherichia coli isolated from pigs, pork and humans in Thailand-Laos border areas, characterize AMR of E. coli isolated from pigs, pork and humans in Thailand-Laos border areas, and compare the resistance to last-line antimicrobials of E. coli and Salmonella isolated from pigs and pork in Thailand-Laos and Thai-Cambodia border areas. Three study projects were conducted. Project 1 demonstrated the results of phenotypic and genotypic monitoring of AMR in E. coli in pigs, pork, and humans in Thailand and Lao PDR border provinces. A total of …
Microbiological Quality Of And Antimicrobial Resistance In Commercial Probiotic Products For Food Animals In Thailand, Hoang My Tran
Microbiological Quality Of And Antimicrobial Resistance In Commercial Probiotic Products For Food Animals In Thailand, Hoang My Tran
Chulalongkorn University Theses and Dissertations (Chula ETD)
A total of 45 commercial probiotic products for food animals were investigated for the number of viable cells, bacterial species and the presence of antimicrobial resistance (AMR) genes. All products were enumerated for viable bacterial cells of Lactobacillus, Bacillus and Enterococcus. Confirmation of species was carried out by multiplex Polymerase Chain Reaction (PCR) for Lactobacillus (n=20), Enterococcus (n=20), and Amplified Ribosomal DNA Restriction Analysis (ARDRA) for Bacillus (n=190). The presence of Clostridium species was examined by PCR. The contamination of E. coli and Salmonella was also determined. Minimal Inhibitory Concentrations (MICs) for 14 antimicrobials was examined in the bacterial isolates …
Localization Of Tilapia Tilapinevirus By In Situ Hybridization In The Brain Of Nile Tilapia (Oreochromis Niloticus), Hung Dinh Nguyen
Localization Of Tilapia Tilapinevirus By In Situ Hybridization In The Brain Of Nile Tilapia (Oreochromis Niloticus), Hung Dinh Nguyen
Chulalongkorn University Theses and Dissertations (Chula ETD)
Tilapia tilapinevirus or tilapia lake virus (TiLV) is an emerging virus that poses a significant negative impact on farmed tilapia globally. Abnormal behaviours such as lethargy, loss of appetite, erratic swimming, stop schooling have been recorded during disease occurrence, which is possibly linked to brain activities. Previous studies described detection of the virus in multiple organs of infected fish; however, little is known about the in-depth localization of the virus in the central nervous system. Herein, we determined the distribution of TiLV and histopathological alterations in the entire brain of Nile tilapia experimentally infected fish. By in situ hybridization (ISH) …
Detection Of Indicator And Pathogenic Bacteria In Raw Vegetables And Fruits Sold In Fresh Markets And Supermarkets, Bangkok, Thailand, Jutanat Srisamran
Detection Of Indicator And Pathogenic Bacteria In Raw Vegetables And Fruits Sold In Fresh Markets And Supermarkets, Bangkok, Thailand, Jutanat Srisamran
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aimed to compare the concentrations of fecal coliforms and Escherichia coli, and the contamination of Salmonella, Shigella, E. coli O157: H7 and Listeria monocytogenes in raw vegetables and fruits between fresh markets and supermarkets in Bangkok, Thailand. A total of 405 produce samples, consisting of sweet basil, spring onion, coriander, cabbage, lettuce, cucumber and tomato, were randomly collected from seven fresh markets (n=203) and 29 supermarkets (n=202) in seven districts of Bangkok between June 2018 and July 2019. T-test and one-way ANOVA were used to compare the concentrations of fecal coliforms and E. coli (log10MPN/g) between fresh markets …
A Study Of Using Corncob, Aspen Shaving, Dried Water Hyacinth And Banana Midrib As Bedding For Laboratory Mice, Nantaporn Maytayapirom
A Study Of Using Corncob, Aspen Shaving, Dried Water Hyacinth And Banana Midrib As Bedding For Laboratory Mice, Nantaporn Maytayapirom
Chulalongkorn University Theses and Dissertations (Chula ETD)
A study of using corncob, aspen shaving, dried water hyacinth and banana midrib as bedding for laboratory mice. The objective of this study was to evaluate the physical characteristics (i.e., absorbency and surface moisture), the physiological effects and intracage ammonia level of 4 types of beddings in laboratory mice. This study was divided into two parts. In the first part, the fluid absorption properties of these four beddings were studied using measurement of liquid absorption and the surface moisture. The results showed that the volumetric absorbency of aspen shaving was significantly higher than other beddings. While, the surface moisture showed …
The Study Of Changes In Gene Regulation Of Serotonin Signaling Pathway And Circulating Serotonin Concentration In Dogs With Pulmonary Hypertension Due To Degenerative Mitral Valve Disease, Nattawan Tangmahakul
The Study Of Changes In Gene Regulation Of Serotonin Signaling Pathway And Circulating Serotonin Concentration In Dogs With Pulmonary Hypertension Due To Degenerative Mitral Valve Disease, Nattawan Tangmahakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Pulmonary hypertension (PH) is an abnormal increase in pulmonary vascular pressure. In dogs, PH is commonly found secondary to degenerative mitral valve disease (DMVD), especially in small breed dogs. Serotonin, a biogenic amine playing an essential role in both physiology and abnormalities of several organs, is a vasoactive substance that has been one of the suspicious mediators for the development of PH. Both local and circulating effects of serotonin have been investigated to discover the involvement of serotonin and the pathogenesis of PH in both humans and animals. The present study aimed to investigate the local serotonin signaling in lung …
Targeted Surveillance Of Potential Zoonotic Respiratory And Enteric Viruses In Dogs In Bangkok, Thailand, Kamonpan Charoenkul
Targeted Surveillance Of Potential Zoonotic Respiratory And Enteric Viruses In Dogs In Bangkok, Thailand, Kamonpan Charoenkul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Human-dog interface poses a risk of transmission and spread of zoonotic viruses. The objective of the thesis entitled is to survey and genetic characterize zoonotic viruses in dogs and humans who have high-risk occupations and in close contact with dogs. This thesis contains 8 topics. The results of the first to third topics were the surveillance of respiratory viruses in dogs including Canine Parainfluenza type 5 (CPIV-5), Canine influenza virus (CIV) and Coronavirus (CoV). The nasal swab samples were collected from dogs with respiratory signs during 2015-2018. The results showed that the occurrence of CPIV-5, CIV and CoV were 5.6% …
Comparison Of Laser Class 1m And Class 4 Applications In Canine Cranial Cruciate Ligament Rupture Evaluated By Clinical Outcomes And Ultrasonography, Noppakrit Ekakaraworapong
Comparison Of Laser Class 1m And Class 4 Applications In Canine Cranial Cruciate Ligament Rupture Evaluated By Clinical Outcomes And Ultrasonography, Noppakrit Ekakaraworapong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Nineteen dogs diagnosed of cranial cruciate ligament rupture were included in this study before TPLO was performed. They were classified into 3 groups which consisted of control, low-level laser therapy class 1M and low-level laser therapy class 4 groups. The number of each group were 4, 8 and 7 dogs, respectively, and the duration of treatment protocol was 4 weeks consecutively. On the first day of the study, dogs were examined and assessed of the clinical signs such as lameness score, synovial fluid analysis, canine brief pain inventory questionnaire (CBPI) and ultrasonographic score. In ultrasonographic monitoring, ultrasonographic scores on synovial …
Efficiency And Clinical Outcomes Of Platlet-Rich Plasma Therapy On Caninecoxofemoral Osteoarthritis, Patama Arunrattanakul
Efficiency And Clinical Outcomes Of Platlet-Rich Plasma Therapy On Caninecoxofemoral Osteoarthritis, Patama Arunrattanakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
The purpose of this study was to find out for the optimal technique to prepare plasma with highest platelet concentration in platelet rich plasma (PRP), as well as determine the result of autologous PRP from the dogs with osteoarthritis(OA) condition. It was shown that the PRP could reduce inflammation, cell regeneration, and enhance angiogenesis to support the injured tissue. This study was composed of two phases; the first phase was aimed to find the best centrifugation speed and time that could be able to produce the plasma with the highest platelet concentration by conducting the experiment from a total of …