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2017

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Isoquinoline Alkaloid Composition And Expression Of Biosynthetic Genes In Mechanically Wounded Sacred Lotus, Thitirat Meelaph Jan 2017

Isoquinoline Alkaloid Composition And Expression Of Biosynthetic Genes In Mechanically Wounded Sacred Lotus, Thitirat Meelaph

Chulalongkorn University Theses and Dissertations (Chula ETD)

Isoquinoline alkaloids, a plant secondary metabolites present in many plant species including lotus (Nelumbo nucifera Gaertn.). Lotus leaf contains high amount of bioactive nuciferine and N-nornuciferine. A set of enzyme including NCS, 6OMT and CNMT and WRKY transcription factors (WRKY TFs) has been reported to have corresponding function in the biosynthesis isoquinoline alkaloids. Thus, we performed quantitative analysis on expression level of these corresponing genes and on nuciferine and N-nornuciferine content in lotus leaf using mechanical wounding method. Sequence analysis clearly showed that all the targeted genes possess the conserved region belongs to their protein families. The accumulation of compound …

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Increasing Viability Of Probiotic Bacteria Co-Encapsulated With Prebiotic For Disease Resistance In White Shrimp Litopenaeus Vannamei, Suppharada Jantarathin Jan 2017

Increasing Viability Of Probiotic Bacteria Co-Encapsulated With Prebiotic For Disease Resistance In White Shrimp Litopenaeus Vannamei, Suppharada Jantarathin

Chulalongkorn University Theses and Dissertations (Chula ETD)

The main problem of probiotics is the low survival of these microorganisms in food products and sensitive to harsh conditions during food processing, storage and in the gastrointestinal tract. The suitable technology for protecting probiotics to maintain the high number of probiotic cells in product and survived within the host which is microencapsulation technique. The aim of this work was to investigate the effect of prebiotic which is inulin or Jerusalem artichoke on the survival of encapsulated Lactobacillus acidophilus TISTR 1338 within alginate matrix and double-coated with chitosan after freeze-drying process and heat processing at 70°C for 60 min. Furthermore, …

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Tyrosinase Inhibitors From Sapodilla Plum Manilkara Zapota L., Sutthiduean Chunhakant Jan 2017

Tyrosinase Inhibitors From Sapodilla Plum Manilkara Zapota L., Sutthiduean Chunhakant

Chulalongkorn University Theses and Dissertations (Chula ETD)

Six different parts of Manilkara zapota which consisted of barks, flowers, fruits, leaves, roots and seeds were investigated for total phenolic content, total flavonoid content, antioxidant and antityrosinase activities. Methanol crude extract of flowers showed the highest total phenolic content (368.73 ± 0.65 mg GAE/g), while methanol crude extracts of seeds and roots showed high total flavonoid content (90.21 ± 0.57 and 89.03 ± 1.00 mg QE/g, respectively). Methanol crude extract of seeds showed the strongest DPPH (IC50 282.05 ± 0.60 μg/mL) and ABTS (IC50 205.11 ± 0.89 μg/mL) radical scavenging activities and showed the highest FRAP value of 296.46 …

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Legal Measures For Employer To Reach Fair Practice In Organizational Restructuring In Thailand, Pitsanuchai Thongtha Jan 2017

Legal Measures For Employer To Reach Fair Practice In Organizational Restructuring In Thailand, Pitsanuchai Thongtha

Chulalongkorn University Theses and Dissertations (Chula ETD)

Restructuring, a normal managerial task of entrepreneurship, can lift up an enterprises' competitiveness potential in business societies. Restructuring will affect to the rights of all people in the enterprise. Labor laws and regulations not only provide adequate protection for employees, but also promote the flexibility to the business sectors. The employment relationships are involved with the actions of three parties - employees, employers and the government - that must substantially cooperate in order to establish efficient labor regulations. Thai labor laws which relate to working condition adjustment and dismissal are obsolete. It provides too much power for the courts in …

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Dehydration And Oxidative Dehydrogenation Of Ethanol Over Sba-15 Based Catalysts Prepared By Sol-Gel And Hydrothermal Methods, Chaowat Autthanit Jan 2017

Dehydration And Oxidative Dehydrogenation Of Ethanol Over Sba-15 Based Catalysts Prepared By Sol-Gel And Hydrothermal Methods, Chaowat Autthanit

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this present study, characteristics and catalytic properties of zirconium (Zr) and bimetal (Zr and La) containing in SBA-15 catalysts and different VOx/SBA-15 catalysts were determined and well related. The study was divided into three parts. Regarding to the first part, zirconium (Zr) and bimetal (Zr and La) containing in SBA-15 synthesized by sol-gel and hydrothermal methods were compared. The results showed that the incorporation of Zr and bimetal (Zr and La) had an effect on the textural properties of both synthesized SBA-15 catalysts. Surface acidity in the SBA-15 suggests new active sites, especially Brønsted acid type. In the second …

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Computational Fluid Dynamic Study Of Sorption Enhanced Steam Reforming Of Methane/Ethanol In Circulating Fluidized Bed System, Kiattikhoon Phuakpunk Jan 2017

Computational Fluid Dynamic Study Of Sorption Enhanced Steam Reforming Of Methane/Ethanol In Circulating Fluidized Bed System, Kiattikhoon Phuakpunk

Chulalongkorn University Theses and Dissertations (Chula ETD)

Two-dimensional fluid dynamic models were used to optimize and design a proper pilot-scale system for sorption enhanced steam methane reforming (SESMR) and sorption enhanced steam reforming of ethanol (SESRE) in a circulating fluidized bed reactor (CFBR) using Ni-based catalyst and dolomite as sorbent. The CFBR system was separately designed as 3 parts: including a SESMR riser, a SESRE and a regenerator. The SESMR riser could get H2 purity reached equilibrium of 98.58% in dry basis with the highest H2 flux of 0.301 kg/m2s when operating with steam to carbon ratio of 4 mol/mol, gas velocity of 6 m/s, inlet temperature …

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Effects Of Polyol Molecular Weights On Thermally Reversible Light Scattering Behaviors Of Benzoxazine-Urethane Copolymers, Kittipon Bunyanuwat Jan 2017

Effects Of Polyol Molecular Weights On Thermally Reversible Light Scattering Behaviors Of Benzoxazine-Urethane Copolymers, Kittipon Bunyanuwat

Chulalongkorn University Theses and Dissertations (Chula ETD)

The thermally reversible light scattering behaviors of benzoxazine-urethane copolymer was investigated in this work. Benzoxazine monomers (BA-a) were synthesized by the solventless synthesis technique from bisphenol-A, para-formaldehyde, and aniline with the molar ratio of 1:4:2, respectively. Urethane prepolymer was prepared by reacting poly(propylene glycol) (Mw = 1000, 2000, or 3000 g/mol) with toluene diisocyanate (TDI) at the molar ratio of 1:2 under a nitrogen atmosphere. The obtained urethane prepolymer (PU) was labelled as PU1K, PU2K, and PU3K with respect to the molecular weights of polyether polyol employed in the preparation step. Urethane prepolymer and benzoxazine monomers were crosslinked during the …

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Effects Of Modification Of Γ-Al2o3 Support By La And Ce On Pt Dispersion And Oxygen Mobility For Co Oxidation, Thanawat Wandondaeng Jan 2017

Effects Of Modification Of Γ-Al2o3 Support By La And Ce On Pt Dispersion And Oxygen Mobility For Co Oxidation, Thanawat Wandondaeng

Chulalongkorn University Theses and Dissertations (Chula ETD)

Effects of La or Ce modified Pt/γ-Al2O3 catalysts on Pt dispersion and oxygen mobility of catalyst were investigated by CO oxidation reaction. 0, 0.01, 0.05, 0.10 and 0.15 molar ratio of La or Ce to Al was doped on Pt/γ-Al2O3 catalysts (0.3wt%Pt) by impregnation method. The CO oxidation activities in terms of light-off temperature (T50) and turnover frequencies (TOF) corresponded to Pt dispersion, oxygen mobility as characterized by various analytical techniques such as X-ray diffraction (XRD), N2-physisorption, CO-pulse chemisorption, and temperature programed desorption of CO2 (CO2-TPD). The results indicated that the addition of La on Pt/γ-Al2O3 catalysts increased the dispersion …

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Chromatographic Separation Of Free Lutein And Fatty Acids In De-Esterified Marigold Oleoresin And Its Mathematical Modelling, Weerawat Clowutimon Jan 2017

Chromatographic Separation Of Free Lutein And Fatty Acids In De-Esterified Marigold Oleoresin And Its Mathematical Modelling, Weerawat Clowutimon

Chulalongkorn University Theses and Dissertations (Chula ETD)

The petal of marigold flowers has been reported to be the richest source of a xanthophyll, namely lutein which exhibits strong antioxidant and anticancer properties. Although large amount of lutein can be obtained, the compound in the flowers exists as esterified lutein, which is not readily bio-available. As a result, a number of separation and purification steps are required after solvent extraction of marigold flowers. One of the key steps is de-esterification of lutein fatty acid esters in the extract, or namely marigold oleoresin, by the reaction of the oleoresin with alkali solution, e.g., KOH, to obtain free lutein. The …

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Characterization Of Non-Volatile Compounds In Tom Yum Soup Using High Performance Liquid Chromatography-Tandem Mass Spectrometry, Wanabud Wongbubpha Jan 2017

Characterization Of Non-Volatile Compounds In Tom Yum Soup Using High Performance Liquid Chromatography-Tandem Mass Spectrometry, Wanabud Wongbubpha

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this work, high performance liquid chromatography hyphenated with tandem mass spectrometry (HPLC-MS/MS) was developed and validated for simultaneous determination of 31 targeted non-volatile compounds, such as 2 organic acids, 20 amino acids and 9 phenolic acids, in Tom Yum ingredient, Tom Yum soup made from the fresh ingredients and commercial Tom Yum pastes, where the main Tom Yum ingredients include galangal, lemongrass, kaffir lime leaves, Bird's eye chili, lime juice and fish sauce. The following HPLC-MS/MS conditions were used: a PoroShell C18 column (4.6 x 100 mm, 2.7 µm) using a gradient elution of A:B mobile phase at a …

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Metabolic Responses Of Aspergillus Niger Es4 To Ethanol Stress, Wimonsiri Kongchai Jan 2017

Metabolic Responses Of Aspergillus Niger Es4 To Ethanol Stress, Wimonsiri Kongchai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Aspergillus niger ES4 is a fungus isolated from the top wall of an ethanol tank of the PTT public company limited. Because normally, microorganism cannot tolerate high amount of ethanol, the growth of A. niger ES4 on the ethanol tank indicates the special properties of this fungal strain in response to ethanol. This research was therefore aimed at studying the effects of ethanol on the metabolites production of A. niger ES4 by using both untargeted and targeted metabolomics. When A. niger ES4 cultures were grown in minimal media containing 4% of ethanol for 3 days, A. niger ES4 responded to …

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Multi-Layered Elastic Medium Under Axisymmetric Loading And Surface Energy Effects, Kanin Tarntira Jan 2017

Multi-Layered Elastic Medium Under Axisymmetric Loading And Surface Energy Effects, Kanin Tarntira

Chulalongkorn University Theses and Dissertations (Chula ETD)

Multi-layered nano-scale structures have been found in a wide range of applications these days. Since the surface energy effect is presented at the nano-scale level, a novel calculation scheme is required to accurately capture the mechanical behaviors of such structures. In this study, a solution scheme for analysis of a multi-layered elastic medium with influence of surface energy effects subjected to axisymmetric loading by adopting Gurtin-Murdoch surface elasticity theory is presented. The standard Love's representation and Hankel integral transform are employed to derive the general solutions, and the obtained solutions are employed in the determination of the stiffness matrix for …

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Factors Affecting Building Damage And People's Preparedness For Earthquake In Chiang Rai, Narongdej Intaratchaiyakit Jan 2017

Factors Affecting Building Damage And People's Preparedness For Earthquake In Chiang Rai, Narongdej Intaratchaiyakit

Chulalongkorn University Theses and Dissertations (Chula ETD)

On May 5, 2014, an earthquake with a magnitude of 6.3 on the Richter scale occurred in Chiang Rai, Thailand. This earthquake was the strongest earthquake in Thailand at the Mae Lao District region. It also caused building damage and casualties. In this research, 277 participants living in village no.2 and village no.7 of Dong Mada, a sub-district at Mae Lao district in Chiang Rai, were selected. A questionnaire was used to interview these participants, and the data were analyzed by Chi-square, Fisher's exact test, a Mann-Whitney U test, and a Kruskal-Wallis test. The objective of this study was to …

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Weakly Singular Boundary Integral Equation Method For Analysis Of Generalized T-Stresses Of Cracks In 3d Coupled-Field Media, Naruethep Sukulthanasorn Jan 2017

Weakly Singular Boundary Integral Equation Method For Analysis Of Generalized T-Stresses Of Cracks In 3d Coupled-Field Media, Naruethep Sukulthanasorn

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis presents the development of a weakly singular boundary integral equation method for the analysis of the generalized T-stress of isolated cracks embedded in a coupled-field whole space. A pair of weak-form integral equations, one for crack-face generalized traction and the other for the gradient of the crack-face generalized displacement, is established in a general framework allowing various types of materials including elastic, piezoelectric, piezomagnetic and piezoelectromagnetic solids, general crack geometry and loading conditions to be handled in a unified fashion. In addition, the final governing integral equations contain only weakly singular kernels and this, as a result, renders …

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An Application Of Geosynthetic Cementitious Composite Mat For Slope Stabilization, Phong Tan Ngo Jan 2017

An Application Of Geosynthetic Cementitious Composite Mat For Slope Stabilization, Phong Tan Ngo

Chulalongkorn University Theses and Dissertations (Chula ETD)

In recent years, soil erosion and slope instability caused by seepage and rainfall are major problems, especially in the mountain area. Many research studies have focused on finding a new technology or material to stabilize the soil slope. In this study, a novel material called geosynthetic cementitious composite mat (GCCM) is selected to study its performance on soil slope stabilization. A series of 1-g physical model tests and numerical simulation (Plaxis 2D) on sandy soil slopes stabilized with and without GCCM are performed under seepage condition. In addition, centrifuge modeling of soil slopes is performed under 25-g in seepage and …

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Analysis Of Near Interface Cracks By Weakly Singular Boundary Integral Equation Method, Pisit Watanavit Jan 2017

Analysis Of Near Interface Cracks By Weakly Singular Boundary Integral Equation Method, Pisit Watanavit

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis presents a weakly singular boundary integral equation method for analysis of sub-interface cracks in a three-dimensional, linearly elastic, multi-material domain. The formulation is established in a general framework allowing finite bodies, general material anisotropy and loading conditions, arbitrarily shaped cracks, and curved material interface to be treated. A system of integral equations governing the unknown data on the boundary, the crack surface and the material interface are established using a pair of weakly singular, weak-form displacement and traction integral equations and the continuity along the material interface. A symmetric Galerkin boundary element method together with the standard finite …

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Contact Problems With Surface Stress Effects, Supakorn Tirapat Jan 2017

Contact Problems With Surface Stress Effects, Supakorn Tirapat

Chulalongkorn University Theses and Dissertations (Chula ETD)

This dissertation presents a theoretical study of contact problems with consideration of surface energy effects by adopting a complete Gurtin-Murdoch theory of surface elasticity. The fundamental solution of a layered elastic half-space subjected to axisymmetric surface loading is obtained by using Love's representation and the Hankel integral transform. The analytical solutions for both displacement and stress fields are expressed in terms of semi-infinite integrals, which can be accurately evaluated by employing a numerical quadrature scheme. The obtained solutions are employed as the required influence functions in the investigation of axisymmetric indentation on a layered elastic medium with frictionless and adhesive …

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Seismic Effects Of Cornice Projection In Masonry-Infill Reinforced Concrete Buildings In Bhutan, Tek Nath Kararia Jan 2017

Seismic Effects Of Cornice Projection In Masonry-Infill Reinforced Concrete Buildings In Bhutan, Tek Nath Kararia

Chulalongkorn University Theses and Dissertations (Chula ETD)

Bhutan is located in utmost active seismic zone in the belt of the Himalayan region. However, there is a prevailing architectural requirement of cornice projections away from the perimeter columns at each floor proportional to the floor level to increase floor area and retain Bhutanese architectural style. This irregular projection with thick solid brick walls resting at the edge of cantilever projection affects the structural response during a strong earthquake. To date, there is not adequate investigation on the effects of such cornice projection on seismic performance of buildings. In this study, Nonlinear Response History Analysis (NLRHA) using vertical ground …

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Mechanisms Of Thai Medicinal Plant Extracts On The Attenuation Of Glutamate-Mediated Neurotoxicity, Anchalee Prasansuklab Jan 2017

Mechanisms Of Thai Medicinal Plant Extracts On The Attenuation Of Glutamate-Mediated Neurotoxicity, Anchalee Prasansuklab

Chulalongkorn University Theses and Dissertations (Chula ETD)

As the world population ages, neurodegenerative diseases, particularly Alzheimer's disease, are becoming a major public health concern with increasing incidence and prevalence worldwide while no cure currently exists. To challenge this situation, herbal medicine may provide a potential alternative treatment as use of natural-derived substances has been proven to be effective in the prevention and/or treatment of several diseases. During the past decades, increasing evidence has implicated excessive glutamate levels in the pathway of neuronal cell death. Thailand is a place known for cultivating a variety of tropical plants and herbs, so far many of them have never been examined …

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Role Of Progesterone Receptor A And B Isoforms In Lung Neuroendocrine Tumors, Teeranut Asavasupreechar Jan 2017

Role Of Progesterone Receptor A And B Isoforms In Lung Neuroendocrine Tumors, Teeranut Asavasupreechar

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lung neuroendocrine tumors (NETs) incidences are increasing in recent years. Women with lung NETs have significantly better survival rates as compared to men suggesting the involvement of sex steroids and their receptors in the progression of lung NETs. Recent data suggested that progesterone receptor (PR) may play a role in the survival of lung NET patients. PR exists as two major isoforms, PRA and PRB. How expression of PR isoforms affects proliferation of lung NETs and patient's survival is not known. To determine the role of PR isoforms in lung NETs, we constructed H727 lung NET cell models expressing PRB …

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Discovery Of Relation Between Listeria And Other Bacterial Contamination Using Classification Refinement Technique, Napas Jeamchotpatanakul Jan 2017

Discovery Of Relation Between Listeria And Other Bacterial Contamination Using Classification Refinement Technique, Napas Jeamchotpatanakul

Chulalongkorn University Theses and Dissertations (Chula ETD)

People often use chicken to prepare their diary meal which creates a great demand for food producers and exporters in Thai food industry. Thailand is ranked fourth in chicken exporters in the world. Standards on chicken meat regulations differ from country to country. One commonality remains: controlling the bacteria that can affect human life, particularly pregnant women and the unborn. One of the important bacteria is called Listeria which receives high attention for the industry to prevent their contamination in chicken. A microbiological test is usually conducted to analyze the data from industry. However, the microbiological test is incapable of …

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Development Of In Situ Gel For Artificial Saliva And Satisfaction Study, Rawi Tishyadhigama Jan 2017

Development Of In Situ Gel For Artificial Saliva And Satisfaction Study, Rawi Tishyadhigama

Chulalongkorn University Theses and Dissertations (Chula ETD)

Xerostomia, the subjective complaint about the dry mouth, may lead to the difficulty in daily living including speaking, swallowing, taste acuity and sleeping. Patients are often advised to drink water or chew ice to moisturize the oral cavity and also recommended to use stimulant or saliva substitute, such as sour candies, chewing gum and artificial saliva. In Thailand, there is no artificial saliva products available in the market and this makes it difficult to access the artificial saliva. Hence, artificial saliva have been developed in the form of solution in many hospitals to dispense for xerostomia patients in the hospitals. …

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Socioeconomic Determinants Of Happiness Of The Elderly In Bhutan, Tashi Duba Jan 2017

Socioeconomic Determinants Of Happiness Of The Elderly In Bhutan, Tashi Duba

Chulalongkorn University Theses and Dissertations (Chula ETD)

Elderly in Bhutan are rising steadily as a proportion of total population. In 2015, population older than 60 constituted about 7.3% of the total population compared to 6.9% in 2010. By 2030, the elderly population is estimated to reach 10.1% of total population. Along with growing numbers of elderly in Bhutan and rapid socioeconomic transformations, the individual-level of happiness decreases with age, the lowest being among the elderly (the Gross National Happiness Index surveys of 2010 and 2015 and Bhutan Living Standard Survey 2012). Nevertheless, there is limited literature exploring factors that are associated with happiness of the elderly. This …

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Asset Pricing And Network Topology, Harnchai Eng-Uthaiwat Jan 2017

Asset Pricing And Network Topology, Harnchai Eng-Uthaiwat

Chulalongkorn University Theses and Dissertations (Chula ETD)

This dissertation provides new empirical evidence for the relationship between network structure and asset returns in US, international markets, and Thailand. Previous studies find that a network of return correlations provides the meaningful economic taxonomy of the equity market. This finding makes the network structure a suitable channel through which an idiosyncratic shock propagates. This network feature can eliminate or amplify the idiosyncratic shock on the system-wide level. Therefore, the diversifying argument of the capital asset pricing models is not always true as the idiosyncratic shock becomes more significant when interacting with the network measures. Based on this idiosyncratic shock …

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Education Management Reform Strategies For Enhancing The Quality Citizenship In Cambodia, Chuonnaron Hang Jan 2017

Education Management Reform Strategies For Enhancing The Quality Citizenship In Cambodia, Chuonnaron Hang

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research study aimed to 1) study the conceptual framework of education management reform and the quality citizenship; 2) study the current and desirable state of education management reform for enhancing the quality citizenship in Cambodia; 3) find out the needs in education management reform for enhancing the quality citizenship in Cambodia; 4) develop education management reform strategies for enhancing the quality citizenship in Cambodia. This study employed the research and development method (R&D). The data were collected from 710 respondents, consisting of 10 education policymakers, 30 Directors of MoEYS departments, 80 school administrators, 150 teachers, 80 School Support Committee …

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Determination Of Waste Treatment Fee Pricing Mechanism For Municipal Solid Waste By Mechanical Biological Treatment Method Utilising The Public Private Partnership Model In Thailand, Adrian Paul Raj Jan 2017

Determination Of Waste Treatment Fee Pricing Mechanism For Municipal Solid Waste By Mechanical Biological Treatment Method Utilising The Public Private Partnership Model In Thailand, Adrian Paul Raj

Chulalongkorn University Theses and Dissertations (Chula ETD)

Private participation in the development of municipal solid waste treatment projects through public-private partnership models accelerate the implementation of sustainable treatment technologies such as Mechanical Biological Treatment (MBT) facilities within developing countries without creating excessive burden to government infrastructure investment. The introduction of preset pricing mechanism to regulate potential waste treatment fee structure based on pre-determined project internal rate-of-return mitigates multi-party risks, such as the potential developer project losses or the opportunity to profiteer. Research encompasses technical assessment of project requirements for implementation of required technologies, commercial analysis of project capital expenditure (CAPEX), operational expenditure (OPEX) and assessment of revenue …

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Enhancing Learner Autonomy Amongst Young Efl Learners In A Rural Area: An Ethnographic Study And Praxis Interventions, Pantipa Pichailuck Jan 2017

Enhancing Learner Autonomy Amongst Young Efl Learners In A Rural Area: An Ethnographic Study And Praxis Interventions, Pantipa Pichailuck

Chulalongkorn University Theses and Dissertations (Chula ETD)

Learner Autonomy (LA) is acknowledged as being beneficial to EFL education, particularly in rural areas where resources are scarce. However, LA enhancement should be implemented with careful consideration to the context. This study consisted of two parts. The first part, the ethnographic study, aimed to (1) explore the awareness of LA among the stakeholders including the administrators, English teachers, guardians and local community, and (2) to explore the meanings and patterns of LA among young EFL learners in a rural school in Northeastern Thailand. This part is a qualitative study combining the data collection methods of non-intrusive and participation observations, …

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Needs Analysis Of English Oral Communication For The Automotive Maintenance And Repair Profession, Witchuda Thakadkul Jan 2017

Needs Analysis Of English Oral Communication For The Automotive Maintenance And Repair Profession, Witchuda Thakadkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aims to investigate the needs of English oral communication for the automotive maintenance and repair profession based on perspectives of automotive mechanical students and stakeholders in the automotive industry in the Bangkok Metropolitan Area, and to propose an English oral communication course syllabus for automotive mechanical students' profession. The study is a survey research consisting of two phases: needs analysis and course syllabus development. The needs analysis process was based on the framework ESP needs analysis of Brown (2016). Data were collected by means of questionnaires with one hundred and nineteen automotive mechanical students and five stakeholders, and …

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Immunohistochemical Assessment Of The Peri-Implant Soft Tissues Around Different Abutment Materials : An Experimental Study In Human, Sirikarn Thongmeearkom Jan 2017

Immunohistochemical Assessment Of The Peri-Implant Soft Tissues Around Different Abutment Materials : An Experimental Study In Human, Sirikarn Thongmeearkom

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objective To evaluate the effect of 4 different types of abutment material, which are titanium, zirconium oxide, gold alloy, and zirconia-coping cemented on titanium-base, on the surrounding soft tissues. Material and Methods Twenty dental implants in posterior edentulous area were randomly divided into 4 groups and inserted 4 types of abutment materials; Titanium, zirconia, gold-alloy, and titanium-base, on the implant installation surgery day. Eight weeks after implant surgery, peri-implant soft tissues around experimental abutments were harvested and split according to implant side; buccal, lingual, mesial, and distal. The specimens were processed through immunohistochemical preparation and stained with CD3, CD20, CD68, …

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The Influence Of The Eu's Collective Identity On Smart Sanctions Imposed On Russia And Their Effect On Russian Financial Institutions, Sunil Kumar Dash Jan 2017

The Influence Of The Eu's Collective Identity On Smart Sanctions Imposed On Russia And Their Effect On Russian Financial Institutions, Sunil Kumar Dash

Chulalongkorn University Theses and Dissertations (Chula ETD)

Beginning in early 2014, the EU introduced and extended a range of smart sanctions against Russia in protest at Russian involvement in destabilizing Ukraine and violation of Ukraine's territorial integrity. By utilizing theoretical elements of constructivism with process tracing method, this thesis examines the influence of the EU's collective identity on smart sanctions imposed on Russia. The analysis finds that the EU's "collective identity" stipulated the "objective interests" and "subjective interests" to its actors and influenced the "actions" of smart sanctions by extending extra restrictive measures for Russian financial institutions to increase the cost of smart sanctions imposed on Russia. …

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