Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Medicine and Health Sciences (3086)
- Social and Behavioral Sciences (2614)
- Engineering (2554)
- Physical Sciences and Mathematics (1876)
- Education (1377)
-
- Arts and Humanities (1146)
- Law (897)
- Business (839)
- Medical Sciences (830)
- Chemistry (670)
- Chemical Engineering (656)
- Life Sciences (645)
- Computer Sciences (618)
- Architecture (582)
- Public Affairs, Public Policy and Public Administration (547)
- Civil and Environmental Engineering (478)
- Communication (468)
- Communication Technology and New Media (468)
- Mass Communication (468)
- Nursing (445)
- Economics (441)
- Operations Research, Systems Engineering and Industrial Engineering (375)
- Sociology (373)
- Industrial Engineering (372)
- Dentistry (357)
- Electrical and Computer Engineering (357)
- Law and Economics (344)
- Pharmacy and Pharmaceutical Sciences (342)
- Political Science (342)
- Operational Research (307)
Articles 8551 - 8580 of 15281
Full-Text Articles in Entire DC Network
Surveillance Of Coronaviruses In Fruit Bats (Pteropus Lylei) Of Thailand, Pichamon Moolthep
Surveillance Of Coronaviruses In Fruit Bats (Pteropus Lylei) Of Thailand, Pichamon Moolthep
Chulalongkorn University Theses and Dissertations (Chula ETD)
Coronavirus (CoV) is an enveloped single positive-stranded RNA virus CoV can cause enteric and respiratory diseases in mammals, avian and human. Bats are the natural reservoir of CoVs and distribute all over Thailand. Sample collection was performed in two bat colonies in Ayutthaya and Saraburi provinces during March 2018 - February 2019. Total 1,487 samples were collected from 730 bats. The bat species identification via morphological measurement and cytochrome B detection showed that bats in both colonies are Lyle's flying fox (Pteropus lylei). The results of CoV detection showed that 4.30% of samples were positive to CoV. Phylogenetic analysis showed …
Effects Of Algae-Derived Ss-Glucan Supplementation On Production Performances And Specific Immune Responses In Nursery To Growing Pigs, Sh.Boonnithi Chuaychu
Effects Of Algae-Derived Ss-Glucan Supplementation On Production Performances And Specific Immune Responses In Nursery To Growing Pigs, Sh.Boonnithi Chuaychu
Chulalongkorn University Theses and Dissertations (Chula ETD)
เบต้ากลูแคนเป็นสารเสริมในอาหารสัตว์ที่มีการใช้กันอย่างแพร่หลายในอุตสาหกรรมการเลี้ยงสุกร ถึงแม้ว่าการเสริมสารเบต้ากลูแคนในสูตรอาหารสุกร จะเชื่อว่าสามารถช่วยพัฒนาการเจริญเติบโตและปรับการทำงานของภูมิคุ้มกันในสุกรได้ แต่อย่างไรก็ตาม ในปัจจุบันยังไม่มีข้อมูลการศึกษาที่ชัดเจนเกี่ยวกับผลของการเสริมเบต้ากลูแคนที่สกัดมาจากสาหร่ายต่ออัตราการเจริญเติบโตและการตอบสนองทางภูมิคุ้มกันโดยเฉพาะระบบภูมิคุ้มกันแบบจำเพาะในสุกร ดังนั้นการศึกษานี้จึงมีวัตถุประสงค์เพื่อประเมินผลของการใช้สารเสริมเบต้ากลูแคนจากสาหร่ายในอาหารสุกรต่อประสิทธิภาพการเจริญเติบโตและการตอบสนองทางภูมิคุ้มกันแบบจำเพาะในสุกรอนุบาลและสุกรขุนเล็ก โดยแบ่งสุกรหย่านมสามสายพันธุ์เป็น 3 กลุ่มการทดลอง ได้แก่ กลุ่มควบคุมที่ได้รับอาหารสูตรมาตรฐาน กลุ่มทดลองที่ 2 และ 3 ได้รับอาหารชนิดเดียวกันที่เสริมด้วยสารเสริมเบต้ากลูแคนจากสาหร่ายในปริมาณ 100 และ 200 กรัมต่อตันตามลำดับ จากการทดลอง ไม่พบความแตกต่างอย่างมีนัยสำคัญของประสิทธิภาพการผลิตและอัตราการเจริญเติบโตของสุกรสุกร การทดสอบการตอบสนองของระบบภูมิคุ้มกันที่จำเพาะหลังการฉีดวัคซีน CSFV และ PRRSV พบว่าสุกรที่ได้รับสารเสริมเบต้ากลูแคนจากสาหร่ายในอาหาร มีระดับ neutralizing antibody ต่อ CSFV สูงขึ้นอย่างมีนัยยะสำคัญ นอกจากนี้ พบการเพิ่มขึ้นของจำนวนเซลล์ CD4+(T lymphocytes) และ CD4+CD8+ (putative memory T lymphocytes) ซึ่งสร้างไซโตคายน์ IFN-g+ ที่มีความจำเพาะต่อ CSFV และ PRRSV ในกลุ่มสุกรที่ได้รับสารเสริมเบต้ากลูแคนจากสาหร่ายอีกด้วย จากการศึกษาสรุปได้ว่า ถึงแม้ว่าการให้สารเสริมเบต้ากลูแคนจะไม่สามารถเสริมสมรรถภาพการผลิตของสุกรได้ แต่มีคุณสมบัติทางชีวภาพในการเป็นสารกระตุ้นภูมิคุ้มกันซึ่งอาจเป็นการเพิ่มความต้านทานโรคติดเชื้อไวรัสในสุกรอนุบาลและสุกรขุนเล็กได้
Development Of Conventional And Taqman Real-Time Polymerase Chain Reaction Methods For Detection Of Liver Fluke Infection With Platynosomum Spp. In Cat Feces, Shane Thiha Soe
Chulalongkorn University Theses and Dissertations (Chula ETD)
The Platynosomum spp. fluke is the etiologic agent of platynosomiasis responsible for hepatobiliary diseases in cats. Coprological examination using centrifugal sedimentation technique is the gold standard method for detection of Platynosomum spp.'s eggs. However, microscopic examination method has a limited sensitivity, particularly in cases of complete biliary obstruction and inconsistent egg shedding. To circumvent these problems, this study aims to develop molecular-based methods for detecting Platynosomum spp. infection in cat feces including conventional PCR (cPCR) and TaqMan real-time PCR methods targeting ITS1 region. From a total number of 120 cat fecal samples, when compared to microscopic examination, the cPCR method …
Surveillance And Histopathological Study Of Microplastics In Marine Fish From The Gulf Of Thailand, Sirawich Srisiri
Surveillance And Histopathological Study Of Microplastics In Marine Fish From The Gulf Of Thailand, Sirawich Srisiri
Chulalongkorn University Theses and Dissertations (Chula ETD)
Microplastic (MP) problems have been threatened aquatic environment worldwide for decades. This study demonstrated current MP contamination characteristics in marine food fishes from the upper Gulf of Thailand. MPs were found in gastrointestinal tracts of 46.86% of fish samples, which were 1.556±0.47 pieces per fish or 0.035±0.014 pieces per gram of fish bodyweight. No plastics were detected from muscle, liver, kidney or gonad of the fishes. There was a significant relationship between MP contamination and fish species or the fish grouping. Benthic fish had a higher contamination rate than pelagic fish. Fiber-type and blue color were the most abundant MPs …
The Effect Of Maternally-Derived Antibodies Against Antibody Production In Vaccinated Piglets With Modified-Live Porcine Reproductive And Respiratory Syndrome Virus Vaccines, Sunit Mebumroong
Chulalongkorn University Theses and Dissertations (Chula ETD)
The humoral antibody responses following vaccination with different lineage of modified live genotype 2 porcine reproductive and respiratory syndrome virus (PRRSV) vaccines (MLVs) were investigated. Moreover, the mortality and growth performance in pigs were observed. Twenty-four pigs with high maternally derived antibody (MDA) levels (SN titer ≥ 8) from each PRRSV positive Herd 1 and Herd 2 were allocated to the H1, H1-1, and H1-2 groups (Herd 1) and H2, H2-1, and H2-2 groups (Herd 2). Twenty-four pigs with low MDA levels (SN titer <8) were allocated to the L1, L1-1, and L1-2 (Herd 1) and L2, L2-1, and L2-2 groups (Herd 2). Twenty-four pigs from the negative herd (Herd 3) were allocated to 3 groups: N, N-1, and N-2 groups. The H1, H2, L1, L2, and N groups were unvaccinated. The H1-1, H2-1, L1-1, L2-1, and N-1 groups were vaccinated with MLV (Ingelvac® PRRS MLV) at 2 weeks of age. The 5 other groups: H1-2, H2-2, L1-2, L2-2, and N-2 groups were vaccinated with MLV2 (Prime Pac® PRRS MLV) at 2 week of age. The antibody responses were measured by ELISA and serum neutralization (SN). The mortality was not observed in all vaccinated groups. Additionally, pigs with high MDA levels from the H1 and H2 groups did not exhibit the mortality throughout the study. ADG in pigs vaccinated with each MLV1 and MLV2 was significant higher than that in unvaccinated pigs. However, pigs vaccinated with MLV2 showed the highest values of ADG. Seroconversion was observed in all vaccinated groups with no significance difference in antibody titers between pigs with low and high MDA levels. However, pigs with low MDA levels showed the earliest and highest antibody level post vaccination. The highest SN-titer against MLV1 isolate and MLV2 isolate was observed in pig from the L1-1 and L2-2 groups, respectively. The field PRRSV-2 isolates: THA_SP/RB_S1/P1/0120-18 and THA_WC/RB_F165/20-22, the SN titers against these isolates were not observed in vaccinated groups. These results indicated that MDAs might not affect the immune response post vaccination. PRRSV-2 MLVs reduced the mortality and improved growth performance of pigs in the endemically PRRSV infected herds. Although, the vaccine was changed in weaning pigs, the antibody responses were detected post vaccination in both pigs with low and high level of MDAs. Moreover, the genetic similarity between vaccine and field virus was not related to the protection. Vaccine selection should depend on the induction of immune response and protection against heterologous PRRSV infection.
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; …
Detection And Genetic Characterization Of Emerging And Re-Emerging Viral Enteric Diseases In Swine In Thailand, Taveesak Janetanakit
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 …
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 …
Relationship Between Insulin-Like Growth Factor-1 And Semen Quality In Asian Elephants (Elephas Maximus), Yuqing Yang
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 …
Communication Strategy For Conservation Of Thai Food Product : A Case Study Of Moo-Naem, Ananporn Sakulraungsri
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 …
Effects Of Soil Composition, Surfactant Structure And Washing Conditions On Diesel Contaminated Soil Removal Efficiency Using Micellar Solution, Angkana Jantanaprasartporn
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 …
The Effects Of Project-Based Writing Instruction On Writing Ability And Critical Thinking Skills Of Thai Efl Undergraduate Students, Apapan Ruengkul
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 …
Toe Clearance And Lower Limb Kinematics During Swing Phase Of Walking Over The Obstacles In Postoperative Total Knee Arthroplasty, Archrawadee Srijaroon
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). …
Factors Influencing Adoption And Usage Probability Of Car Sharing In Bangkok, Baweena Ruamchart
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, …
A Comparative Study Of B-Class Culture And Kawaii Culture: A Case Study Of Pengsoo And Kumamon, Cai Wantong
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 …
English Language Assessment Policy And Agency Of English Teachers In Thailand, Benjamas Dhammarungruang
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 …
Stress Patterns And Metalinguistic Knowledge Before And After Praxis Intervention On The Pronunciation Of English Derivational Suffixed Words By Thai Learners, Chedtinee Piyapattaranop
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. …
Environmental Impacts And Hazardous Characteristics Of Led Lamps Waste, Delpavita Koralege Lakshani Diluka Gunawardhaa
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 …
The Popularity Of K-Pop In North East India: Case On The Increasing Fame Of Bts Between 14-29 Age Group, Eshani Bora
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, …
Pvdf Hollow Fiber Membrane Modification For Dye Wastewater Treatment By Ozonation Membrane Contacting Process, Hanh Le Thi My
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 …
Assessing Environmental Impact Through Dpsir Framework And Environmental Justice Lenses:A Case Study Of Inland Capture Fisheries In Mahakam River, Etik Sulistiowati Ningsih
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 …
Development Of X-Ray Shielding Material From Combination Of Amorphous Cellulose Of Used Paper, Barium Sulphate, And Natural Rubber, Harinate Mungpayaban
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 …
Study Of Platelet Production From Megakaryocyte By Using Induced Pluripotent Stem Cell, Jaturawat Pawinwongchai
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 …
Semiotic Landscape Of Bangkok Sex Tourism Spaces, Joey Andrew Lucido Santos
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 …
Effect Of Ovalitenone On Non-Small Cell Lung Cancer Cells, Kittipong Sanookpan
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 …
Sky Castle: A Reflection Of Challenges Of Family Institution In Korean Society Through Tv Drama, Kittiwat Jongchalermchai
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 …
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 …
Microencapsulation Of Black Cumin Seed Oil With Hydrocolloids Via Spray Drying, Najwa Yanya Santiworakun
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 …
Prediction Of Arsenic Contamination In Rayong Groundwater Basin Using Machine Learning Based Approaches, Narongpon Sumdang
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 …
The Study Of Makeup Of Thai Female Fans Influencing From K-Pop Idols: Blackpink, Nichakon Parivatphun
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 …