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2019

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Ecological Risk Assessment Of Heavy Metals In Soils From An Informal E-Waste Dismantling Site, Buriram Province, Thailand, Nisakorn Amphalop Jan 2019

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, …

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Rice Granules As Natural Carrier To Encapsulate Drug And Aromatic Oils, Xue Liu Jan 2019

Rice Granules As Natural Carrier To Encapsulate Drug And Aromatic Oils, Xue Liu

Chulalongkorn University Theses and Dissertations (Chula ETD)

Rice granules as major energy supply to humanity worldwide are utilized in many fields, such as food, medical, printing and plastic industries. In this thesis work, rice starch/granule is applied as hydrophilic drug (vancomycin) carrier to achieve the release. By confirmation on the stability of rice granules against to various treatments like alkali, acid and heating, as well as a-amylase, trypsin, and lipase, it is possible to use rice granules as 100% natural source to be the capsule and matrix getting the non-core-shell structure of the formation. The success of encapsulation is confirmed by the observations on crystalline, thermal properties …

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Roles Of Wox On Pt/Γ-Al2o3 Catalysts On The Prevention Of Pt Metal Sintering During Hydrogenolysis Of Glycerol To 1,3-Propanediol, Poonnapa Limsoonthakul Jan 2019

Roles Of Wox On Pt/Γ-Al2o3 Catalysts On The Prevention Of Pt Metal Sintering During Hydrogenolysis Of Glycerol To 1,3-Propanediol, Poonnapa Limsoonthakul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Hydrogenolysis of glycerol to produce 1,3-propanediol is the most effective reaction which conversing excess glycerol from biodiesel production to high-value-add product ; especially, 1,3-propanediol. A solid catalyst which generally used as selective to 1,3-propanediol production is Pt-based catalyst with γ-Al2O3 supporter which was prepared by wet impregnation method in this study. Although hydrogenolysis of glycerol reaction has been carried out under mild conditions: 140 °C and 5 bar of initial H2 pressure, the deactivation of non-reduced Pt/γ-Al2O3 catalyst is observed. To investigate the deactivation of the catalyst, the used Pt/γ-Al2O3 and Pt/WOx/γ-Al2O3 catalysts were characterized by N2-physisorption, ICP-OES, SEM-EDX, XRD, …

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Selective Oxidation Of H2s In Biogas To Sulfur On V2o5 Catalyst Dispersedon Ceo2-Mo2 (M = Ti, Si, Zr) Mixed Oxides, Benjamaporn Tudkesorn Jan 2019

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 …

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Roles Of Lin28 Proteins In Cholangiocarcinoma, Nattapong Puthdee Jan 2019

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 …

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Development And Optimization Of Self-Microemulsifying Astaxanthin Delivery System Using The Design Of Experiment (Doe) Approach, Mo Mo Ko Zin Jan 2019

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 …

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Genetic And Pathogenic Characterizations Of Newly Emerged Duck Tembusu Virus Isolated In Thailand, Patchareeporn Ninvilai Jan 2019

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 …

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Gene Expression Analysis Of Mmp12 And S100a4 Of Grafted Bone Using Allograft And Xenograft In Mice, Tipaporn Jurairutporn Jan 2019

Gene Expression Analysis Of Mmp12 And S100a4 Of Grafted Bone Using Allograft And Xenograft In Mice, Tipaporn Jurairutporn

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objectives: This study aimed to evaluate the genes of interest that could explain osteoblast and osteoclast activities in bone remodeling after bone grafting with demineralized freeze-dried bone allograft) (DFDBA) and demineralized bovine bone mineral (DBBM) to compare with normal bone healing. Methods: Calvarium defects were created on both side of the parietal bone in nine male C57BL/6MLac mice. Defects were divided into 3 groups; group 1: defect without grafting as a control group, group 2: defect grafted with DFDBA, and group 3: defect grafted with DBBM. The mRNA expression levels of MMP12 and S100A4 were analyzed using real-time PCR in …

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Knowledge And Attitude On Practice Of Iron Deficiency Anemia Prevention Among High School Female Students In Banjarmasin City, Indonesia: A Mixed Method Study, Lafi Munira Jan 2019

Knowledge And Attitude On Practice Of Iron Deficiency Anemia Prevention Among High School Female Students In Banjarmasin City, Indonesia: A Mixed Method Study, Lafi Munira

Chulalongkorn University Theses and Dissertations (Chula ETD)

Based on the Indonesia National Basic Health Survey in 2018, the prevalence of anemia in young women was 48.9%, along with the major proportions of anemia in the age group of 15-24 years. This study aimed to examine the influence of knowledge and attitude on iron deficiency anemia prevention practice and to find out the reasons for not practicing anemia prevention among female high school students in Banjarmasin, Indonesia. The mixed-method study with a quantitative study: cross-sectional survey study (April 2020) was conducted through an online survey among 359 female students (15-18 years old) and qualitative study: focus group discussion …

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Effect Of Cooking Fuels Use On Increased Maternal Carotid Intima Media Thickness And Preeclampsia Among Self-Cooking Pregnant Women In Nay Pyi Taw Area, Myanmar: A Cohort Study, Myo Min Jan 2019

Effect Of Cooking Fuels Use On Increased Maternal Carotid Intima Media Thickness And Preeclampsia Among Self-Cooking Pregnant Women In Nay Pyi Taw Area, Myanmar: A Cohort Study, Myo Min

Chulalongkorn University Theses and Dissertations (Chula ETD)

Fuels burned in households for cooking causes indoor air pollution. Exposure to pollutants emitted from burning cooking fuels poses a considerable risk for human health including preeclampsia through systemic inflammation process for which carotid intima-media thickness (CIMT) is an important surrogate arthrosclerosis biomarker. This study aimed to examine the association of cooking fuels use with increased maternal carotid intima-media thickness and preeclampsia among cooking pregnant women in Myanmar. A cohort study was conducted in Nay Pyi Taw Area, Myanmar from September 2019 to March 2020. A total of 192 pregnant women over 18 years with gestational weeks less than 18 …

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Quantitative Microbial Risk Assessment Of Water Consumption In Flood-Prone Communities, Nakhon Si Thammarat Province, Thailand, Teeraphat Attavinijtrakarn Jan 2019

Quantitative Microbial Risk Assessment Of Water Consumption In Flood-Prone Communities, Nakhon Si Thammarat Province, Thailand, Teeraphat Attavinijtrakarn

Chulalongkorn University Theses and Dissertations (Chula ETD)

A cross-sectional study was performed for household survey using a questionnaire with a face-to-face interview to determine the general characteristics and water consumptions during flooding events in flood-prone communities, Pak Phanang and Chian Yai district, Nakhon Si Thammarat province, Thailand between February-July 2020. From a 425 household survey, 69.5% were female, two-thirds of the participants aged 46 years old and above, and had the average monthly household income at 7305.13 ± 7016.56 Baht. Free bottled water and stored water in their own houses were the two main sources of drinking water during floods. ​From the survey, stored rainwater typically collecting …

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Factors Associated With Food Safety Knowledge And Practice Among Street Food Vendors In Taunggyi Township, Myanmar : A Cross-Sectional Study, Tin Aung Soe Htway Jan 2019

Factors Associated With Food Safety Knowledge And Practice Among Street Food Vendors In Taunggyi Township, Myanmar : A Cross-Sectional Study, Tin Aung Soe Htway

Chulalongkorn University Theses and Dissertations (Chula ETD)

Food safety is a growing public health concern worldwide. Street food is a major element of food safety concerns since, especially in developing countries, it is where street food is an integral part of the culture offering easy access to food with affordable price. Food safety knowledge and practices of street food vendors is, therefore, essential to ensure safe food and prevent food borne disease outbreaks. This cross-sectional study investigated the level of food safety knowledge and practices as well as their associate factors among street food vendors in Taunggyi Township, Myanmar. Validated structured questionnaires were used to interview 158 …

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Lead Poisoning Among Communication Radio-Repair Workers In Signal Department Royal Thai Army Samutsakhon Province, Thailand, Manasawee Thongsringklee Jan 2019

Lead Poisoning Among Communication Radio-Repair Workers In Signal Department Royal Thai Army Samutsakhon Province, Thailand, Manasawee Thongsringklee

Chulalongkorn University Theses and Dissertations (Chula ETD)

Chronic exposure to low dose of lead can affect to every systems and organs of the human body. Lead poisoning have been found among communication radio-repair workers because lead is routinely used for soldering. The longitudinal study design was used to investigate blood lead level (BLL) and hair lead level (HLL), to determine the association of BLL and HLL with signs and symptoms of lead poisoning among workers and to determine the health risk assessment of lead exposure among workers. There were 66 repair workers in exposed group and 54 office workers in low exposed group at baseline. And, there …

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Breast Self-Examination Among Akha Women In Chiang Rai Province Thailand: Policy Recommendations Based On The Formative Research Study Design, Sirinan Suwannaporn Jan 2019

Breast Self-Examination Among Akha Women In Chiang Rai Province Thailand: Policy Recommendations Based On The Formative Research Study Design, Sirinan Suwannaporn

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: The mortality rate of breast cancer has increased in several countries in Asia. In Thailand, this fact is confirmed by the hospital–based cancer registry annual report which ranked breast cancer as first of all female cancer patients. One an urgent concern of prevention and education on early detection is Breast Self-Examination (BSE). ‘Akha’ women, the largest ethnic group in Chiang Rai, northern part of Thailand, have a significantly low percentage of BSE practice because of language barrier and other problems. This study aims to identify factors associated with BSE among this ethic group to better understand the reasoning for …

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Household Pyrethroid Insecticides Exposure In Relation To Pyrethroid Metabolite And Gaba Level Effects Of Young Children In Urban Area, Bangkok Thailand, Jadsada Kunno Jan 2019

Household Pyrethroid Insecticides Exposure In Relation To Pyrethroid Metabolite And Gaba Level Effects Of Young Children In Urban Area, Bangkok Thailand, Jadsada Kunno

Chulalongkorn University Theses and Dissertations (Chula ETD)

Pyrethroids are commonly used in households and affect to nervous system in children. Data on pyrethroids exposure related to neurotransmitter gamma-aminobutyric acid (GABA) is unknown. This study investigated the relationship between 3-PBA metabolites and GABA concentrations, and also determined the factors influencing pyrethroids metabolites among young children in urban areas. A repeated cross-sectional design was designed to collect the information on PYR insecticide exposure between wet (November – December 2018) and dry (April – May 2019) seasons. To collect the data, urine samples were collected from children age 2–3 years(n = 80), and the questionnaires were used with parents. The …

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Undernutrition And Its Determinants Among Under-Five Children Of Indigenous Thami Population In Dolakha District, Nepal, Keshav Dahal Jan 2019

Undernutrition And Its Determinants Among Under-Five Children Of Indigenous Thami Population In Dolakha District, Nepal, Keshav Dahal

Chulalongkorn University Theses and Dissertations (Chula ETD)

Undernutrition is a major public health issue leading to morbidity and mortality in children of age under-five, especially with higher rate of prevalence in very low or low-income countries including socially deprived and marginalized group of population. This study was carried out to identify the prevalence of undernutrition and its determinants among under-five children of indigenous Thami population in Dolakha District, Nepal. A community based quantitative cross-sectional study was conducted during the period of August to September 2019 with multistage sampling technique among 366 under-five children and their biological mothers. Anthropometric measurement tools were used to collect the data as …

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Standardization Of Leaf And Stem Of Thunbergia Laurifolia And Quantitative Analysis Of Rosmarinic Acid In Selected Thai Medicinal Plants, Parichart Hongsing Jan 2019

Standardization Of Leaf And Stem Of Thunbergia Laurifolia And Quantitative Analysis Of Rosmarinic Acid In Selected Thai Medicinal Plants, Parichart Hongsing

Chulalongkorn University Theses and Dissertations (Chula ETD)

Rang-Jued or Thunbergia laurifolia Lindl. is a species in family Thunbergiaceae. In Thailand, leaf and stem of T. laurifolia are used to treat fever, inflammation, as well as antidotes. Perilla frutescens (L.) Britton or Nga-Kee-Mon belongs to Labiatae family. The leaf of P. frutescens is used to treat allergy, fever and inflammation. Rosmarinic acid is the active compound in both plants which was used as a standard marker in this study. Quantification of rosmarinic acid in the three samples using TLC-densitometry and TLC-image analysis were not statistically significantly different (P > 0.05). The pharmacognostic specification of T. laurifolia leaf and stem …

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Effects Of Inhaled Essential Oils On Central Nervous System, Autonomic Nervous System, Emotional States And Reaction Time: Randomized Crossover Study, Pakamon Thanatuskitti Jan 2019

Effects Of Inhaled Essential Oils On Central Nervous System, Autonomic Nervous System, Emotional States And Reaction Time: Randomized Crossover Study, Pakamon Thanatuskitti

Chulalongkorn University Theses and Dissertations (Chula ETD)

The odors of essential oils used to cure various symptoms refer to aromatherapy. The effects of inhaled essential oil on humans are therapeutically effective due to both the psychological and physiological effects. A large body of previous studies have been conducted on the effects of essential oil inhalation. However, the studies conducted on the effects on central nervous system and reaction time task are still lacking. Thus, the purpose of this study was to evaluate the effects of selected essential oils including neroli oil (Citrus aurantium Linn.), cinnamon leaf oil (Cinnamomum zeylanicum Blume), and rice paddy herb oil (Limnophila aromatica …

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Precision Medicine Reimbursement Policy Landscape, Nisita Jirawutkornkul Jan 2019

Precision Medicine Reimbursement Policy Landscape, Nisita Jirawutkornkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Access to precision medicine is limited due to many factors such as precision medicine technology of each country, high-cost technology that requires high finance, limitations on knowledge and competency of personnel and access to precision medicine. Each country manages access to precision medicine differently. The existing evidences of precision medicine reimbursement policy were limited. Objective: To explore reimbursement decision of precision medicine focusing on diagnostic tests and factors associated with reimbursement decision among high-income and upper-middle-income countries. Methods: A targeted review of literatures was conducted through PubMed, MEDLINE, Embase, Cochrane Library, and hand-searching. The study included 13 selected precision …

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Situation Analysis Of Drug Product Information Provision In Yangon And Review On Consumer Drug Information Guidelines Across Countries, Zar Ni Win Jan 2019

Situation Analysis Of Drug Product Information Provision In Yangon And Review On Consumer Drug Information Guidelines Across Countries, Zar Ni Win

Chulalongkorn University Theses and Dissertations (Chula ETD)

The appropriate drug use and successful treatment relies heavily on how patients administer medicines by themselves and thus healthcare knowledge and drug information become crucial for them. Firstly, content analysis was conducted to evaluate drug product information attached with the 30 drug samples of three drug classes. To evaluate written and verbal drug information, standardized simulated patient survey was conducted by using Mefenamic Acid provided in community pharmacies around Yangon. In the second step of this study, targeted literature review was performed to identify and compare different regulations of PILs and PIL development guidelines in terms of contents, designs and …

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The Thai Perception Of The Bounds Of Masculinity: An Analysis Of Boys’ Love Drama Series, Anthony Thien Pham Jan 2019

The Thai Perception Of The Bounds Of Masculinity: An Analysis Of Boys’ Love Drama Series, Anthony Thien Pham

Chulalongkorn University Theses and Dissertations (Chula ETD)

The study lays a foundation for understanding gender and sexuality within a Thai sociocultural, political, and economic context and goes on to elaborate how Thai boys' love drama series productions are built upon the foundation of their Japanese and Chinese predecessors. An analysis of the evolution of boys' love drama series within Thailand will be conducted from the years 2014 to 2018, utilizing the Uses and Gratification Theory as well as the Media System Dependency Theory in order to rationalize growth and success of the genre. Queer Theory and Social Constructivism are applied in order to better understanding the shifting …

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The Role Of Ethnic Chinese In Thailand's Banking Sector Development: The Case Study Of Bangkok Bank's Business Strategy, Shenglan Zheng Jan 2019

The Role Of Ethnic Chinese In Thailand's Banking Sector Development: The Case Study Of Bangkok Bank's Business Strategy, Shenglan Zheng

Chulalongkorn University Theses and Dissertations (Chula ETD)

Ethnic Chinese people have actively participated in Thailand's economic activities throughout history. In the early 20th century, the ethnic Chinese family groups burrowed into the power-base of the economy - the banking industry in Thailand. The purpose of this study is to investigate the role of ethnic Chinese and their business strategy in Thailand’s banking sector development during the formative years of the banking industry. This study finds that ethnic Chinese attempted to establish commercial banks in Thailand before WWII but failed in competition with European capitals, while the European-owned banks could not succeed without hiring Chinese compradors to bridge …

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The Popularity And The Localization Of Muay Thai In California, Usa, Andrew Rudolph Sorrells Jan 2019

The Popularity And The Localization Of Muay Thai In California, Usa, Andrew Rudolph Sorrells

Chulalongkorn University Theses and Dissertations (Chula ETD)

Muay Thai as the traditional martial art of the Thai people. In the last few decades, Muay Thai has spread throughout the world. The International Federation of Muay Thai Amateurs (IFMA), based in Bangkok, boasts 130 member countries. One of the places Muay Thai spread to and became popularized is California, USA. This paper is an ethnographic study of the phenomenon of how the Thai martial art of Muay Thai has been popularized and localized in California. I did field work at Muay Thai gyms in California and Thailand where I observed the different traditions, practices, and training methodologies. I …

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Generation Z'S Attitude Towards Music Consumption On Joox Online Music Streaming Application, Ravisrarat Pibulpanuvat Jan 2019

Generation Z'S Attitude Towards Music Consumption On Joox Online Music Streaming Application, Ravisrarat Pibulpanuvat

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this study is to investigate Thai generation Z’s attitude towards their music consumption on Joox online music streaming application. A qualitative approach was selected, using semi-structured, in-depth interviews. Ten participants, Thai generation Z music listeners, aged 17-24 years old who consume Joox online music streaming application every day for at least six months, were selected through purposive, snowballing sampling methods. The interviews were interpreted using In Vivo coding. This study based on the theoretical framework of Ajzen and Fishbein’s (2000) theory of planned behavior which suggested that actual behavior is motivated by the combination of attitude towards …

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A New Business Model For Small Food Business In Thailand, Burim Otakanon Jan 2019

A New Business Model For Small Food Business In Thailand, Burim Otakanon

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research aims to investigate the core components of the food business and to develop the food business model for the small food firm. The study is conducting by using a mix-method approach. The finding shows that the food business model constellates six core components, which are innovation, value proposition, value delivery, revenue model, compelling strategy, and the firm’s performance. The six components are statistically validated the model relationship by using a correlation coefficient. The correlation indicates that a change of a component affects all the other components in the model as a whole. This study complementarity extends the contribution …

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Building Trust Through Innovative Trust Building Process : The Case Of Organic Food Market In Thailand, Supranee Tangnatthanakrit Jan 2019

Building Trust Through Innovative Trust Building Process : The Case Of Organic Food Market In Thailand, Supranee Tangnatthanakrit

Chulalongkorn University Theses and Dissertations (Chula ETD)

The organic food industry is currently faced with challenges of consumer mistrust due to the current food supply chain issues concerning the reliability of information, supply chain transparency, product quality, logistic issues, environmental impact, fraud, and food safety. Although receiving certification from the authorized institutions is one way of building consumer trust, it remains a cumbersome process. In addition, consumers are increasingly looking to develop trust through other sources, such as searching for information that relates to the reputation of the retailers or the credibility of the producers. While trust has been generally defined in previous trust-related studies as the …

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Management For Publicizing Thai Dance In A Foreign Country : The Case Study Of Lor (Love, Obsession, Revenge) Performed At Fei & Milton Wong Experimental Theatre, Canada, Nawarit Rittiyotee Jan 2019

Management For Publicizing Thai Dance In A Foreign Country : The Case Study Of Lor (Love, Obsession, Revenge) Performed At Fei & Milton Wong Experimental Theatre, Canada, Nawarit Rittiyotee

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this research was to study and to shape concepts in the management for publicizing Thai dance in a foreign country. This study employed Love, Obsession, Revenge, or shortly, LOR as a case study and this Thai dance had already been performed at the Fei & Milton Wong Experimental Theatre, Simon Fraser University, Canada. Autoethnography methodology was applied as the research method in this study as the researcher was part of the team. Nineteen observations were conducted and analyzed by comparing and contrasting theories and personal experiences. The findings revealed that partnership with international organization facilitated management for …

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Single Fixed-Time Artificial Insemination With Fresh Or Frozen Thawed Semen In Pig, Pachara Pearodwong Jan 2019

Single Fixed-Time Artificial Insemination With Fresh Or Frozen Thawed Semen In Pig, Pachara Pearodwong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Single fixed-time AI is the breeding protocol inseminating the sows once with either fresh or frozen-thawed (FT) semen at fixed time after ovulation induction without estrus detection. To develop the success single fixed-time AI protocol in Thailand, factors affecting the efficacy of single fixed-time AI were evaluated. Additionally, we also evaluated the effect of using lecithin in cryopreservation extender on FT semen qualities in order to find the possibility to perform single fixed-time AI using sperm preserved in lecithin based extender. It was found that administration of 10 ug buserelin at 72 h after weaning decreased weaning-to-ovulation interval compared to …

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Development Of An Indirect Elisa To Detect Antibodies Against Actinobacillus Suis Using Boiled Whole Cell Antigen, Siriluck Juntautsa Jan 2019

Development Of An Indirect Elisa To Detect Antibodies Against Actinobacillus Suis Using Boiled Whole Cell Antigen, Siriluck Juntautsa

Chulalongkorn University Theses and Dissertations (Chula ETD)

Actinobacillus suis is considered an opportunistic pathogen in swine that can cause disease in animals of all ages, especially in high health status herds. The objective of this study was to developed an indirect enzyme-linked immunosorbent assay (ELISA) using boiled whole cell antigen for the detection of antibody against A. suis. The selected herd has clinical problems associated with A. suis infection. In addition, this herd was not received any Actinobacillus pleuropneumoniae (APP) vaccine nor diagnosed with APP infection before the study. The isolation of A. suis was recovered from lung of the infected pig in the selected herd. Moreover, …

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Short Term Effects Of Sildenafil In Treatment Of Pulmonary Hypertension In Degenerative Mitral Valve Disease Dogs, Karun Saetang Jan 2019

Short Term Effects Of Sildenafil In Treatment Of Pulmonary Hypertension In Degenerative Mitral Valve Disease Dogs, Karun Saetang

Chulalongkorn University Theses and Dissertations (Chula ETD)

Degenerative mitral valve disease (DMVD) is the most common acquired cardiac disease in small breed dogs. Pulmonary hypertension (PH) is a common complication in DMVD that can worsen the clinical signs, cardiac function, and median survival time of DMVD dogs. Conventional therapy of DMVD can reduce systolic pulmonary arterial pressure (sPAP) minimally. Thus, additional therapy is required. Sildenafil is used to treatment of PH in various causes, but the effect of sildenafil in the treatment of PH secondary to DMVD is not published yet. Therefore, this study aimed to evaluate the effects of sildenafil in combination with conventional therapy in …

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