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2020

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Genetic Characteristics Of Antimicrobial Resistance Of Salmonella Enterica And Escherichia Coli Isolated From Broilers, Pigs And Their Meat Products In Sa Kaeo, Banteay Meanchey And Siem Reap Provinces, Suthathip Trongjit Jan 2020

Genetic Characteristics Of Antimicrobial Resistance Of Salmonella Enterica And Escherichia Coli Isolated From Broilers, Pigs And Their Meat Products In Sa Kaeo, Banteay Meanchey And Siem Reap Provinces, Suthathip Trongjit

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research study aimed to investigate the incidence and characterize antimicrobial resistance (AMR) in Salmonella enterica and Escherichia coli isolated from broilers, pigs and their meat products in Thailand–Cambodia border provinces. Resistance to clinically importance antimicrobials was additionally examined in the E. coli isolates from other provinces with high pig production in Thailand. A total of 941 samples were collected from broilers and pigs at slaughterhouses and their carcasses at local fresh markets in Sa Kaeo, Thailand (n=554) and Banteay Meanchey and Siem Reap, Cambodia (n=387) during 2014-2015. Three hundred forty-five Salmonella isolates were collected from Thailand (n = 145; …

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Detection And Genetic Characterization Of Emerging And Re-Emerging Viral Enteric Diseases In Swine In Thailand, Taveesak Janetanakit Jan 2020

Detection And Genetic Characterization Of Emerging And Re-Emerging Viral Enteric Diseases In Swine In Thailand, Taveesak Janetanakit

Chulalongkorn University Theses and Dissertations (Chula ETD)

Emerging and re-emerging important enteric viruses in pigs including porcine epidemic diarrhea virus (PEDV), porcine deltacoronavirus (PDCoV) and enterovirus G (EVG) are important pathogens of food security and public health concerns. In Thailand, the information on the occurrences and status of PEDVs, PDCoVs and EVGs is limited. Especially, Thai-EVGs have never been reported before. This thesis composes of three study phases. Phase 1 is surveillance of swine enteric viruses in pig farms. Phase 2 is genetic characterization and phylogenetic analysis of swine enteric viruses. Phase 3 is development of rapid diagnostic tests using RT-LAMP with lateral flow device (LFD) and …

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Bacteriophage And Ozone-Nanobubble Based Approaches For Combating Multidrug-Resistant Aeromonas Hydrophila In Nile Tilapia (Oreochromis Niloticus) Culture System, Thanh Dien Le Jan 2020

Bacteriophage And Ozone-Nanobubble Based Approaches For Combating Multidrug-Resistant Aeromonas Hydrophila In Nile Tilapia (Oreochromis Niloticus) Culture System, Thanh Dien Le

Chulalongkorn University Theses and Dissertations (Chula ETD)

Aeromonas hydrophila infection is considered one of the most important bacterial diseases responsible for the loss of millions of dollars in the global freshwater aquaculture industry. Multidrug-resistant (MDR) A. hydrophila is becoming a global issue of concern. Non-antibiotic approaches can minimize the requirement for antimicrobials to combat infectious diseases and antimicrobial resistance. This study aims to investigate the potential application of lytic bacteriophage, ozone nanobubbles (NB-O3), a potential combination of bacteriophage and nanobubble-based technology in combatting MDR A. hydrophila in Nile tilapia. A newly Myoviridae phage pAh6.2TG was isolated, identified, and characterized in this study. The application of this phage …

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Relationship Between Insulin-Like Growth Factor-1 And Semen Quality In Asian Elephants (Elephas Maximus), Yuqing Yang Jan 2020

Relationship Between Insulin-Like Growth Factor-1 And Semen Quality In Asian Elephants (Elephas Maximus), Yuqing Yang

Chulalongkorn University Theses and Dissertations (Chula ETD)

Evidence has been increasingly suggested that insulin-like growth factor-1 (IGF-1) is related to steroidogenesis and spermatogenesis. This may be conducive to find the causes of poor sperm quality in Asian elephants (Elephas maximus). The present study aimed to investigate whether correlations among serum IGF-1 concentration, serum testosterone level and semen variables exist in elephants. A total of 17 ejaculates (1–3 ejaculates/bull) were collected by performing transrectal massage. Before each ejaculate, blood samples were obtained (n = 17). Subsequently, semen characteristics of each ejaculate were evaluated. Assessments of precision (calculations of the intra- and inter-assay coefficient of variation, CV) and accuracy …

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Communication Strategy For Conservation Of Thai Food Product : A Case Study Of Moo-Naem, Ananporn Sakulraungsri Jan 2020

Communication Strategy For Conservation Of Thai Food Product : A Case Study Of Moo-Naem, Ananporn Sakulraungsri

Chulalongkorn University Theses and Dissertations (Chula ETD)

The study of Communication strategy for conservation of thai food product : a case study of Moo-Naem consisted of three objectives. 1) To add value to Moo-Naem and communicate the value to its customer; 2) To encourage people to perceive the value of Moo-Naem and purchase Moo-Naem; and 3) To use communication strategy as a tool to conserve Moo-Naem as the traditional and cultural cuisine. Two methodologies were utilized: 1) questionnaire surveys in which the population of the study is the people who lived in Bangkok, Thailand. Simple random sampling method was applied and self-administrated written in Thai and English …

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Effects Of Soil Composition, Surfactant Structure And Washing Conditions On Diesel Contaminated Soil Removal Efficiency Using Micellar Solution, Angkana Jantanaprasartporn Jan 2020

Effects Of Soil Composition, Surfactant Structure And Washing Conditions On Diesel Contaminated Soil Removal Efficiency Using Micellar Solution, Angkana Jantanaprasartporn

Chulalongkorn University Theses and Dissertations (Chula ETD)

Surfactant solutions are commonly used for the remediation of petroleum-contaminated soil due to their good petroleum removal performance, time-saving capability, and cost effectiveness. However, applying surfactants in excess concentrations could make oil recovery difficult. Moreover, residual surfactants in soil are toxic to microorganisms and plants. Thus, it is crucial to identify a suitable surfactant concentration for soil washing applications. The main objective of this study was to evaluate the effect of soil composition (sand, silt, clay and organic matter), surfactant structure (Tween 20, 40, 60 and 80, and Tergitol 15-S-7, 9 and 15). Subsequently, two surfactants from each series (Tween …

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The Effects Of Project-Based Writing Instruction On Writing Ability And Critical Thinking Skills Of Thai Efl Undergraduate Students, Apapan Ruengkul Jan 2020

The Effects Of Project-Based Writing Instruction On Writing Ability And Critical Thinking Skills Of Thai Efl Undergraduate Students, Apapan Ruengkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

This present study aimed to (1) investigate the effects of project-based writing instruction on writing ability of Thai EFL undergraduate students, (2) examine the effects of project-based writing instruction on critical thinking skills of Thai EFL undergraduate students, and (3) explore the attitudes of Thai EFL undergraduate students towards project-based writing instruction. This study employed a mixed-method research design with a one-group, pre-test-post-test design to collect both quantitative data and qualitative data. The study participants were 24 first-year undergraduate students at Srinakharinwirot University. Five research instruments were created to elicit data including the pre-test and post-test of writing ability and …

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Toe Clearance And Lower Limb Kinematics During Swing Phase Of Walking Over The Obstacles In Postoperative Total Knee Arthroplasty, Archrawadee Srijaroon Jan 2020

Toe Clearance And Lower Limb Kinematics During Swing Phase Of Walking Over The Obstacles In Postoperative Total Knee Arthroplasty, Archrawadee Srijaroon

Chulalongkorn University Theses and Dissertations (Chula ETD)

The purpose of this study was to determine minimum toe clearance and lower limb kinematics at initial swing and mid-swing phase during walking over the obstacles in patients with knee osteoarthritis after total knee arthroplasty (TKA). Twenty patients aged 65-85 years with knee OA were included to the study before surgery, three and six months following TKA and twenty age-matched healthy controls were collected the data for comparisons. All participants were asked to perform range of motion test, muscle length test, leg length, leg muscles strength test, joint position sense test, single-leg balance test, Knee Injury Osteoarthritis Outcome Score (KOOS). …

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Factors Influencing Adoption And Usage Probability Of Car Sharing In Bangkok, Baweena Ruamchart Jan 2020

Factors Influencing Adoption And Usage Probability Of Car Sharing In Bangkok, Baweena Ruamchart

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis aimed to examine factors influencing adoption and usage probability of car sharing in Bangkok. There were two phases of study. The first phase was examining the factors influencing the probability of using of car sharing. The latter was designed to assess customers' attitudes toward the intention to use car sharing. Both studies employed a quantitative method of data collection and analysis. Study One assessed the likelihood of using car sharing from customers' characteristics in three main groups: socio-economic status, travel behavior and car-sharing preferences. The data were collected through a questionnaire with the target population group. In total, …

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A Comparative Study Of B-Class Culture And Kawaii Culture: A Case Study Of Pengsoo And Kumamon, Cai Wantong Jan 2020

A Comparative Study Of B-Class Culture And Kawaii Culture: A Case Study Of Pengsoo And Kumamon, Cai Wantong

Chulalongkorn University Theses and Dissertations (Chula ETD)

B-class culture is a unique type of South Korean culture, growing in popularity among the young Korean generation. Kawaii culture is the culture of cuteness in Japan, which has become an essential part of modern Japanese culture. In 2020, B-class representative- Pengsoo was accused of copying the Kawaii mascot- Kumamon. Most people compare them in terms of their appearance and PR strategies instead of their cultures. This thesis compares B-class culture and Kawaii culture based on the stratification, production, and consumption function theories. Through document information and sentiment analysis, B-class culture and Kawaii culture share similar generational stratification between the …

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English Language Assessment Policy And Agency Of English Teachers In Thailand, Benjamas Dhammarungruang Jan 2020

English Language Assessment Policy And Agency Of English Teachers In Thailand, Benjamas Dhammarungruang

Chulalongkorn University Theses and Dissertations (Chula ETD)

The concept of human agency has received increasing attention in the field of education in the past decade. Education researchers, those in the area of English language education included, have much to grapple with in exploring and conceptualizing agency of teachers—or teacher agency. This is because teacher agency has been emphasized in education policy, stressing the importance of teachers acting as "agents of change." Yet, ironically, education policy both enables and constrains teacher agency due to the conflicts between the rhetoric of policy text and the reality of teaching context faced by the teachers. This paradoxical situation, coupled with the …

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Stress Patterns And Metalinguistic Knowledge Before And After Praxis Intervention On The Pronunciation Of English Derivational Suffixed Words By Thai Learners, Chedtinee Piyapattaranop Jan 2020

Stress Patterns And Metalinguistic Knowledge Before And After Praxis Intervention On The Pronunciation Of English Derivational Suffixed Words By Thai Learners, Chedtinee Piyapattaranop

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research study investigated the stress patterns and metalinguistic knowledge of Thai learners on the pronunciation of English derivational suffixed words. The study compared how the learners performed before and after the praxis intervention, where the stress placement rules of English suffixed words were explicitly taught and trained. Thirty first-year university students were selected by stratified random sampling based on their proficiency levels and were grouped into the high and low proficiency groups. They took the pre-test which was the read aloud task of the base and the suffixed words. Their performance was recorded, and the stress patterns were analysed. …

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Environmental Impacts And Hazardous Characteristics Of Led Lamps Waste, Delpavita Koralege Lakshani Diluka Gunawardhaa Jan 2020

Environmental Impacts And Hazardous Characteristics Of Led Lamps Waste, Delpavita Koralege Lakshani Diluka Gunawardhaa

Chulalongkorn University Theses and Dissertations (Chula ETD)

LED lighting technology has strongly taken the Thai lighting market due to the high consumption in residential, industrial and commercial sectors so the sustainability of LED lamps chain is considered as a critical factor for Thai lighting market. Additionally LED lamps waste consist of toxic metals hence improper landfilling has high potential to create negative environment and human health impact due to toxic metals contamination to environment. Therefore, this study focused on (1) quantifying environmental impact due to consumption behaviors among industrial lighting consumers and (2) hazard characterization and toxicity estimation of improper landfilling of LED lamps waste. Environmental impact …

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The Popularity Of K-Pop In North East India: Case On The Increasing Fame Of Bts Between 14-29 Age Group, Eshani Bora Jan 2020

The Popularity Of K-Pop In North East India: Case On The Increasing Fame Of Bts Between 14-29 Age Group, Eshani Bora

Chulalongkorn University Theses and Dissertations (Chula ETD)

Hallyu Wave or Korean Wave in North East India began in the late 1990s pirated CDs, DVDs, and the Korean TV channel in Manipur due the Revolutionary People's Front ordered a ban on Hindi films and TV channels. The popularity of the Hallyu Wave has been present in the North East ever since due to many physical and cultural similarities. Today, due to the popularity of BTS, a seven-member boy group from South Korea who are the biggest boy group in the world have immensely popularized K-POP to the youth. Due to limited studies on K-POP in North East India, …

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Pvdf Hollow Fiber Membrane Modification For Dye Wastewater Treatment By Ozonation Membrane Contacting Process, Hanh Le Thi My Jan 2020

Pvdf Hollow Fiber Membrane Modification For Dye Wastewater Treatment By Ozonation Membrane Contacting Process, Hanh Le Thi My

Chulalongkorn University Theses and Dissertations (Chula ETD)

One of the main pollutions from textile wastewater is the dyeing wastewater containing color and organic matters. Among the treatment methods of dye wastewater, ozonation membrane contactor was used as the concept of this research. PVDF membranes were developed by pulse inductively coupled plasma (PICP) and grafted by organosilanes for hydrophobicity enhancement applied for dye wastewater treatment by ozonation membrane contactor. To obtain a stable grafting, the surface of PVDF hollow fiber membrane was activated by the plasma operating condition including two different plasma gases (oxygen and argon), applied voltage and pressure, plasma treatment shot, followed by grafting with four …

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Assessing Environmental Impact Through Dpsir Framework And Environmental Justice Lenses:A Case Study Of Inland Capture Fisheries In Mahakam River, Etik Sulistiowati Ningsih Jan 2020

Assessing Environmental Impact Through Dpsir Framework And Environmental Justice Lenses:A Case Study Of Inland Capture Fisheries In Mahakam River, Etik Sulistiowati Ningsih

Chulalongkorn University Theses and Dissertations (Chula ETD)

Inland capture fisheries significantly contribute to the achievement of SDG, but most inland capture fisheries are poorly managed or not managed at all. Inland fishery is often facing against the big-scale industrial project. In the Middle Mahakam Area, two dominant natural resources exploited for the industrial project are palm oil and coal mining. Palm oil production, coal mining production, the human population was increasing in the last ten years, and on the opposite, the water quality index is decreasing. However, although many previous studies suggested that fish catches are declining, fisheries statistics show the opposite data. Government statistics show that …

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Development Of X-Ray Shielding Material From Combination Of Amorphous Cellulose Of Used Paper, Barium Sulphate, And Natural Rubber, Harinate Mungpayaban Jan 2020

Development Of X-Ray Shielding Material From Combination Of Amorphous Cellulose Of Used Paper, Barium Sulphate, And Natural Rubber, Harinate Mungpayaban

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research aimed to fabricate X-ray shielding substrates using amorphous cellulose from office waste paper and eucalyptus pulp mixed with natural rubber to produce the prototypes. The amorphous cellulose was prepared using only the sulfuric acid at 0 °C to rearrange the crystalline chain to the amorphous chain. After that, the barium sulfate/amorphous cellulose composite (Ba/AC) was regenerated using barium chloride solution. The shielding sheets were formulated by mixing vulcanization natural rubber individual with Ba/AC from office waste paper (NR-W), the purified eucalyptus pulp (NR-E), and barium sulfate powder (NR-P). The NR-W and NR-E were shown the predominant attenuation than …

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Study Of Platelet Production From Megakaryocyte By Using Induced Pluripotent Stem Cell, Jaturawat Pawinwongchai Jan 2020

Study Of Platelet Production From Megakaryocyte By Using Induced Pluripotent Stem Cell, Jaturawat Pawinwongchai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Thrombopoiesis is the process of platelet production from hematopoietic stem cells (HSCs). Glycoproteins (GP) Ib-IX-V that is expressed on the surface of megakaryocytes and platelets binds von Willebrand factor (VWF) plays roles in platelet production. Either the GPIb deficiency or hyper-function can cause macrothrombocytopenia, the molecular mechanisms remain unclear. In this study, the pathogenesis investigations were performed in the human induced pluripotent stem cell (hiPSC) model. CRISPR-Cas9 was used to generate the hiPSCs carrying a gain-of-function GP1BA p.M255V mutation which was described in platelet-type von Willebrand disease (PT-VWD). The GPIb deficiency hiPSCs were previously derived from a Bernard Soulier syndrome …

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Semiotic Landscape Of Bangkok Sex Tourism Spaces, Joey Andrew Lucido Santos Jan 2020

Semiotic Landscape Of Bangkok Sex Tourism Spaces, Joey Andrew Lucido Santos

Chulalongkorn University Theses and Dissertations (Chula ETD)

Sex tourism, though a potentially significant site of investigation, has received limited scholarly attention in the semiotic landscape research in the past two decades. Addressing this gap, I interrogate the discursive construction of Bangkok sex tourism spaces focusing on Silom areas, Cowboy alley, Nana Plaza. The study aims to identify the patterns of linguistic and semiotic choices in sexed signs, analyze the role of linguistic and semiotic resources in indexing gender and sexuality, and investigate the discursive construction of Bangkok sex tourism spaces. The data comprised 122 photographed sexed signs. I also did the non-participant observation in the areas investigated …

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Effect Of Ovalitenone On Non-Small Cell Lung Cancer Cells, Kittipong Sanookpan Jan 2020

Effect Of Ovalitenone On Non-Small Cell Lung Cancer Cells, Kittipong Sanookpan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cancer metastasis is the major cause of about 90% of cancer deaths. As epithelial-to-mesenchymal transition (EMT) is known for potentiating metastasis. In the present study aimed to elucidate the effect of ovalitenone on the suppression of EMT and metastasis-related behaviors, including cell movement and growth under detached conditions, and cancer stem cells (CSCs), of lung cancer cells. Ovalitenone, as a flavonoid was extracted from roots of Millettia erythrocalyx Gapnep., was the first reported to show the anti-migration activity of H460 and A549 lung cancer cells. Ovalitenone was used at concentrations of 0–200 μM. While it caused no cytotoxic effects on …

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Sky Castle: A Reflection Of Challenges Of Family Institution In Korean Society Through Tv Drama, Kittiwat Jongchalermchai Jan 2020

Sky Castle: A Reflection Of Challenges Of Family Institution In Korean Society Through Tv Drama, Kittiwat Jongchalermchai

Chulalongkorn University Theses and Dissertations (Chula ETD)

The purpose of this research is to investigate the existence of family institution in the context of changes in Korean society, as well as the societal reflections that come from them and the impact of education on family institutions. The methodology of this study is documentary research, which entails locating papers on current social issues in Korea, as well as content analysis, which examines scenes and dialogue in the series "Sky Castle". According to the study, Korean society places a high priority on scholastic achievement that it puts children under pressure and stress. All of these are represented through the …

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Economic Development Of Burma (1948-1958): The Clash Between The Capitalist-Based Economic Plan And Socialist Ideology Implementation, Kyaw Htet Jan 2020

Economic Development Of Burma (1948-1958): The Clash Between The Capitalist-Based Economic Plan And Socialist Ideology Implementation, Kyaw Htet

Chulalongkorn University Theses and Dissertations (Chula ETD)

Over 100 years of under British colony, Burma was liberated in 1948 inheritingmost of the colonial system especially in the administration and legal system however adopted the different political doctrine since the beginning. Socialism was chosen as the state ideology during the independent struggle and made it concrete by the AFPFL leaders especially by PM U Nu. Though widely hailed as a Socialist state yet not in the form of typical Socialist state seen in those Soviet-sphere countries but her own style combining the welfare system with traditional Buddhist culture. The first attempt of economic development on national scale was …

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Microencapsulation Of Black Cumin Seed Oil With Hydrocolloids Via Spray Drying, Najwa Yanya Santiworakun Jan 2020

Microencapsulation Of Black Cumin Seed Oil With Hydrocolloids Via Spray Drying, Najwa Yanya Santiworakun

Chulalongkorn University Theses and Dissertations (Chula ETD)

Nigella sativa is one of historical and miracle herbs been used for many centuries in different civilizations. Although its oil provides high nutritious values of fatty acids and phytochemicals, the strong odor and peppery taste limits its application in food products. In additions, the black cumin seed oil also poor solubility and rapid deterioration. A wise strategy to enhance organoleptic property and promote oil solubility is encapsulating the cold press black cumin seed oil with suitable wall materials via spray drying. In this study, eight water soluble hydrocolloids were used for formulating the mixed microcapsules. Only four formulations of microcapsules …

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Prediction Of Arsenic Contamination In Rayong Groundwater Basin Using Machine Learning Based Approaches, Narongpon Sumdang Jan 2020

Prediction Of Arsenic Contamination In Rayong Groundwater Basin Using Machine Learning Based Approaches, Narongpon Sumdang

Chulalongkorn University Theses and Dissertations (Chula ETD)

The present study used three algorithms consisting of Support Vector Machine (SVM), Random Forest (RF), and Artificial Neuron Network (ANN) to locate risk area of arsenic (As)contamination in Rayong coastal aquifers, Thailand. There were three parts in this study consisting of 1) selecting the proper parameters 2) selecting the appropriate model, and 3) constructing the risk map of As. To perform models efficiently, the parameters used to generate the models have to be selected based on the correlation of each hydrochemical parameter with As concentration, which could explain the mechanisms of As release in groundwater. Due to major parameters in …

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The Study Of Makeup Of Thai Female Fans Influencing From K-Pop Idols: Blackpink, Nichakon Parivatphun Jan 2020

The Study Of Makeup Of Thai Female Fans Influencing From K-Pop Idols: Blackpink, Nichakon Parivatphun

Chulalongkorn University Theses and Dissertations (Chula ETD)

With the increasing popularity of Korean idols in Thailand, it has become a trend among teenagers to follow their fashion, hair, and makeup. Korean Wave or Hallyu idols have become the object of envy of fans, and it is easy to find the behavioral trends of teenagers trying to imitate and follow their idols. The purpose of this research is to explore the make-up behavior of Thai female fans influenced by BLACKPINK and analyze the reasons and motivations in following the make-up behavior of their idol. The Attitude/Motivation Test Battery (AMTB), developed by Gardner (1985), was used for measuring the …

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Synergistic Activities Of Antibiotic Combinations Against Carbapenem-Resistant Klebsiella Pneumoniae And Mechanisms Of Carbapenem Resistance In Klebsiella Pneumoniae Clinical Isolates., Netchanok Muhummudaree Jan 2020

Synergistic Activities Of Antibiotic Combinations Against Carbapenem-Resistant Klebsiella Pneumoniae And Mechanisms Of Carbapenem Resistance In Klebsiella Pneumoniae Clinical Isolates., Netchanok Muhummudaree

Chulalongkorn University Theses and Dissertations (Chula ETD)

Carbapenem-resistant Klebsiella pneumoniae (CRKP) has been increasing reported worldwide. The aims of this study were to investigate the mechanisms of carbapenem resistance in K. pneumoniae Thai isolates and study the synergistic activities of antibiotic combinations against CRKP isolates. Two-hundred and forty CRKP clinical isolates were obtained from patients at King Chulalongkorn Memorial Hospital between September 2016 and April 2020. The antibiotic susceptibility testing was determined by agar dilution to imipenem, meropenem, amikacin, fosfomycin, ciprofloxacin and by broth microdilution to colistin. The prevalence rates of resistance to imipenem, meropenem, ciprofloxacin, fosfomycin, amikacin, and colistin were 90.42%, 91.67%, 95.84%, 41.25%, 20%, and …

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Factors Influencing Adoption And Usage Probability Of Automated Parcel Lockers, Orawee Thongkam Jan 2020

Factors Influencing Adoption And Usage Probability Of Automated Parcel Lockers, Orawee Thongkam

Chulalongkorn University Theses and Dissertations (Chula ETD)

The study proposes a model to predict probability to use Automated Parcel Locker (APL) in Bangkok by adopting Multiple Linear Regression. In addition, to help business to market to the right target and increase the intention to use, the study investigates factors influencing Intention to use APL by employing Structural Equation Model (SEM). The framework is developed based on Technology Acceptance Model (TAM) and other external factors. The questionaries were conducted for both methods with 718 observation and 500 responses, randomly selected. The results show that variables best predict probability to use APL is price set with discount, followed by …

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Drivers For Reverse Logistics Packaging In Circular Economy For Thailand Beverage Industry From The Manufacturer Perspective, Patiparn Sajjasophon Jan 2020

Drivers For Reverse Logistics Packaging In Circular Economy For Thailand Beverage Industry From The Manufacturer Perspective, Patiparn Sajjasophon

Chulalongkorn University Theses and Dissertations (Chula ETD)

In Thailand, Municipal Solid Waste (MSW) problems exist, and 15% are due to post-consumption beverage packaging that is left behind after the point of consumption. This study aimed to analyze driving forces in reverse logistics of post consumption packaging for Thailand beverage industry and examine impact of sustainability. 39 variables related to drivers, key success factors including sustainability also modeled. Questionnaire has been designed based on 11-point rating scale and Item-Objective Congruence performed by experts from the academic and business. Sampling conducted through 210 respondents from alcoholic and non-alcoholic manufacturers. Collected data analyzed by using structural equation modeling for hypotheses …

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Application Of Phage Display Technology For The Production Of Antibodies Againststreptococcus Suis Serotype 2, Pattarawadee Sulong Jan 2020

Application Of Phage Display Technology For The Production Of Antibodies Againststreptococcus Suis Serotype 2, Pattarawadee Sulong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Streptococcus suis (S. suis) serotype 2 infection is problematic in the swine industry and responsible for most cases of human infection worldwide. Since current multiplex PCR cannot differentiate between serotypes 2 and 1/2, then serotype-specific antibodies (Abs) are required for serotype identification to confirm S. suis serotype 2 infection. This study aimed to generate Abs specific to S. suis serotype 2 by phage display from a human heavy chain variable domain (VH) antibody library. For biopanning, whole cells of S. suis serotype 2 were used as the target antigen. With increasing selection stringency, we could select the VH Abs that …

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Synthesis Of Nanoscale Zerovalent Iron (Nzvi) Derived From Lignin Containing Wastewater For Arsenic Removal, Phoomipat Jungcharoen Jan 2020

Synthesis Of Nanoscale Zerovalent Iron (Nzvi) Derived From Lignin Containing Wastewater For Arsenic Removal, Phoomipat Jungcharoen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Nanoscale zerovalent iron (nZVI) plays a significant role in environmental remediation including the removal of arsenic from groundwater and drinking water. This study synthesized modified nZVI particles in order to remove arsenic in drinking water. Reductive precipitation under various conditions was used to produce non-modified nZVI (B-nZVI) and lignin-modified nZVI using either 1 g/L lignin solution (L-nZVI) or pulp and paper wastewater (P-nZVI) as the substrate. Ferrous to borohydride molar ratio of 1:1 was found to be the most appropriate ratio for L-nZVI and P-nZVI production since lignin was incorporated into the nZVI structure the most. According to TEM analysis, …

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