bluuebunny/crossref_metadata_2025 huggingface dataset:
Education and Technology in a Data Driven Society. Turning Data into Education Intelligence
Authors: NICOLA-GAVRILĂ Laura
Published: November 2023

In a data-driven society, education and technology have become closely intertwined, transforming the way we learn, teach, and acquire knowledge. The availability of vast amounts of data and the advancements in technology have brought about significant changes in the education sector, enabling personalized learning experiences, improved access to information, and more effective educational outcomes. By embracing a data-driven approach, education systems can make informed decisions, tailor instruction to student needs, identify areas for improvement, and optimize resources, ultimately leading to improved student outcomes and enhanced educational experiences.In this chapter, we'll explore how data-driven technologies are unlocking the power of data for transforming education in an intelligent resource. Connecting data and leveraging technological tools we aim to foster collaboration, and contribute to the continuous improvement in teaching and learning outcomes.Keywords: data-driven; technology; education intelligence.JEL Classification: I20; O33.Cite this chapter:Nicola-Gavrilă, L. (2023). Education and Technology in a Data Driven Society. Turning Data into Education Intelligence. In L., Nicola-Gavrilă (Ed), Digital Future in Education: Paradoxes, Hopes and Realities (pp.12-33). ISBN 978-606-95516-1-5. In Book Series Socio-Economics, Research, Innovation and Technologies (SERITHA), ISSN: 3008-4237. https://doi.org/10.57017/SERITHA.2023.DFE.ch1 Chapter’s history: Received 3rd of July, 2023; Revised 7th of August, 2023; Accepted for publication 19th of August, 2023; Published 30th of September, 2023. 
Connectedness, Collaboration, and Co-creation
Authors: GIBOGWE Vincent , NIGO Ayine
Published: November 2023

As the world we live in changes to embrace tech futures, how and what we teach in our education system will also be reshaped to keep up to date with the growing demands of the 21st century, hence the need for straightforward approaches to future Learning in the context of business and management. Our contributions to the call for book chapters in 'Digital Future in Education: Paradoxes, Hopes and Realities' will be based on the following three-sub-chapters, i.e., 1) Networking and team working, 2) Anywhere, anytime, learning, and 3) Customization for a learner-first approach. Our findings show that educators need to facilitate these experiences in context, and our classrooms need to reflect this model of learning. We also find out that the current and future environment for learning and teaching using the said methodology is too volatile to sustain this educational structure. Students will need to learn what they need and when they need it. Conversely, teachers will become facilitators of Learning and teaching, and students will have more control of their learning journey.Keywords: connectedness; collaboration; co-creation; information recall; transmissive; digital future; learning and teaching.JEL Classification: A19; A29; A39; B19; B29.Cite this chapter:Nigo. A, and Gibogwe. V. (2023). Connectedness, Collaboration, and Co-creation. In L., Nicola-Gavrilă (Ed), Digital Future in Education: Paradoxes, Hopes and Realities (58-78 pp.). ISBN: 978-606-95516-1-5. In Book Series Socio-Economics, Research, Innovation and Technologies (SERITHA), ISSN: 3008-4237. https://doi.org/10.57017/SERITHA.2023.DFE.ch4Chapter's history:Received 14th of February 2023; Revised 17th of April 2023. Accepted for publication on 20th of August 2023; Published on 30th of September 2023. 
The Impact of Government Expenditure on Education in the Environmental, Social and Governance Models at World Level
Authors: COSTANTIELLO Alberto , LEOGRANDE Angelo
Published: November 2023

In this chapter, we estimated the value of Government Expenditure on Education (GEE) in the context of Environmental, Social and Governance (ESG) dataset of the World Bank. We used data from 193 countries in the period 2011-2020. We used Panel Data with Fixed Effects, Panel Data with Random Effects, Pooled Ordinary Least Squares-OLS, and Weighted Least Squares-WLS. Our results show that the value of GEE is positively associated among others to “Case of Death, by communicable disease and maternal, prenatal and nutrition conditions”, and “Unemployment”, and negatively associated among others to “Hospital Beds” and “Government Effectiveness”. Furthermore, we applied the k-Means algorithm optimized with the Elbow method and we found the presence of four clusters. Finally, we confronted eight machine learning algorithms for the prediction of the future value of GEE. We found that the polynomial regression is the best predictive algorithm. The polynomial regression predicts an increase in GEE of 7.09% on average for the analysed countries.Keywords: collective decision-making; education; legislatures and voting behaviour; corruption; policy formulation.JEL Classification: D70; D72; D73; D78. Cite this chapter:Leogrande, A. and Costantiello, A. (2023). The Impact of Government Expenditure on Education in the Environmental, Social and Governance Models at World Level. In L., Nicola-Gavrilă (Ed), Digital Future in Education: Paradoxes, Hopes and Realities (190-209 pp.). ISBN: 978-606-95516-1-5. Book Series Socio-Economics, Research, Innovation and Technologies (SERITHA) ISSN: 3008-4237. https://doi.org/10.57017/SERITHA.2023.DFE.ch9Chapter’s history: Received 11th of May, 2023; Revised 17th of June, 2023; Accepted for publication 20th of July, 2023; Published 30th of September, 2023. 
Analysis of Friction Stir Welded Joint Properties of 2A12 Aluminum Alloy
Authors: GE Xiaole , WANG Hongfeng , HUANG Da , SONG Weiwei
Published: November 2023

2A12 hot-rolled aluminum alloy has high plasticity and toughness, and is widely used in the manufacturing of structural parts in aviation, aerospace, automobiles, and other fields. To explore the effect of friction stir welding process parameters on the welded joint properties of 2A12 hot-rolled aluminum alloy, experimental investigations were conducted. The surface appearance of the welded joints under different process parameters was observed, the microstructure, microhardness, tensile strength, yield strength, elongation and the fracture morphology of the welded joints were assessed. The findings suggested that when the rotation speed was 600 rpm and the forward speed was 250 mm/min, the tensile strength, yield strength and elongation of the welded joint were all maximum, which were 437.6 MPa, 381.6 MPa and 7.5 % respectively, reaching 85.5 %, 88.1 % and 35.7 % of the base material. Under the same forward speed, the tensile strength and elongation of the welded joint initially rose and subsequently declined with the increment of rotation speed. The microhardness distribution of the welded joint exhibited a W-shape pattern. The fracture morphology showed that the fracture type of the welded joint was a ductile fracture. Unlike the base material, the welded joints did not exhibit significant necking during the tensile testing. The research results can be utilized as a reference for the engineering application of friction stir welding of 2A12 hot-rolled aluminum alloy.
Von Ariern und Aliens
Authors: Novian Michael
Published: November 2023

What German science fiction authors put on paper in the 1920s and early 1930s are not infrequently pre-fascist omnipotence fantasies of galactic proportions. Michael Novian examines literary representations of the “Nordic race” in science fiction novels from the period before the Second World War, especially in works by the authors Edmund Kiss and Friedrich Freksa. The defining perspective of the study owes much to the theory of the “neomyth” by the theologian Linus Hauser. Accordingly, the study provides a practical analysis of neomythic designs of human finitude in the tradition of Hauser and thus a contribution to the study of religiosity in science fiction.
A Study on Social Factors Fffecting Type 2 Diabetes Self-management, a Narrative Review
Authors: Afifirad Zahra , Khorshidi Gholamhossein , Soori Tahereh
Published: November 2023

Context: Patients with type 2 diabetes (T2D) need to commit to permanent discipline to minimize the risks of disease. On the other hand, the approach to disease self-management has shifted from a solely biological and doctor-patient-oriented approach to a more comprehensive model with a cooperative approach that takes advantage of social factors such as the community and family. Therefore, it is necessary to comprehensively extract social factors affecting consumer discipline from scientific sources. Evidence Acquisition: This narrative review identified social factors T2D self-management. Relevant studies were retrieved from reputable databases including PubMed, Google Scholar, Iran Doc, Emerald, and ScienceDirect through a web search (with no temporal limitations). Out of the 18,082 retrieved articles, 68 studies resonating with research goals were selected and underwent qualitative analysis. Results: Four categories of social factors were identified, including family, diabetes educators, peers, and diabetes online communities. Family member behaviors were classified into three groups: Diabetes self-management facilitators, obstacles, and neutral behaviors. Studies on diabetes educators accentuated their essential capabilities. Also, two face-to-face peer support models were identified. Ultimately, diabetes online communities were investigated as an emerging context capable of identifying and covering the needs of diabetic patients and their families. Conclusions: Social factors, including family, educators, peers, and online communities, play a crucial role in T2D self-management. By recognizing these factors, healthcare professionals can design interventions that ultimately result in better outcomes for patients with T2D.
Pengaruh Kesiapan Guru Mengajar dan Motivasi Belajar Terhadap Hasil Belajar Siswa Pada Mata Pelajaran Ekonomi Kelas X SMA Negeri 4 Pematang Siantar
Authors: Junita Mariana Pasaribu  , Anton Luvi Siahaan  , Binsar Tison Gultom
Published: November 2023

This research aims to determine the influence of teacher readiness to teach and student learning motivation on student learning outcomes in the Class X Economics subject at SMA Negeri 4 Pematangsiantar. The type of research used in this research is quantitative research with an associative approach and research design using a survey design. The population in this study was 72 students. The sample in this study was 72 students. Data collection techniques use observation, documentation, and questionnaires. The data in this study were analyzed using normality tests, multicollinearity tests, heteroscedasticity tests, multiple linear regression tests, partial tests, simultaneous tests and determinant tests. The research results show that there is an influence of teacher teaching readiness on student Economics learning outcomes with tcount > ttable (2.233 > 1.990). Furthermore, there is an influence of student learning motivation on student Economics learning outcomes with tcount > ttable (2.609 > 1.990). and there is an influence between teacher readiness to teach and student learning motivation on student Economics learning outcomes with Fcount > Ftable (3.783 > 3.110).
The Effect Of Role Play Strategy In Teaching Vocabulary At The Eighth Grade Of SMP Negeri 5 Pematang Siantar
Authors: Eka Ria Oktavia Ginting Munthe  , Yanti kristina Sinaga  , Christian Neni Purba
Published: November 2023

The aim of this research is to look at The Effect Of Role Play Strategy In Teaching Vocabulary At The Eighth Grade Of Smp Negeri 5 Pematang Siantar. This research would employ a quasi-experimental design with a quantitative research and a "pre-test and post-test" methodology. The objective of the research was to determine whether or not eighth grade children learn vocabulary well through role-playing. The researcher used just two classes as samples. The experimental group is VIII-3, whereas the control group is VIII-4. The mean achievement of these two groups is comparable. Where each class has 31 students. The VIII-3 class was designated as the experimental group, and they would teach through Role Play Strategy, while the VIII-4 class was designated as the control group, and they would not be employing any Role Play Strategy. From the results of the data analysis in the previous study, it can be concluded that Role Play Strategy plays a key role in helping students improve their vocabulary. The use of the Role Play Strategy can help students become more proficient in vocabulary. During the vocabulary lesson in the classroom, the students are more engaged and exhibit greater creativity and innovation. T-test > T-table (3.9 > 1.671), based on the analysis results at the 5% significance level. It also shows that (Ho) was rejected but (Ha) was accepted. The novelty of this research is that students are more active and interested in the learning process, students understand the material more easily, and students have a greater curiosity.
Evaluation of different fungicides against afla rot, Aspergillus flavus Link in groundnut
Authors: VJ Chaudhari  , BR Nakrani  , VM Jitaliya
Published: November 2023

Four systemic, four non-systemic and two combined fungicides at different concentrations were tested in vitro through poison food technique against Aspergillus flavus (Link), a causal organism of afla rot of groundnut. All the fungicides with their respective concentration were found inhibitory to the radial growth of A. flavus. Among all the systemic fungicides the highest growth inhibition of 99.99 per cent was recorded with tebuconazole 25% EC at all concentration (100, 250 and 500 ppm) followed by carbendazim 50% WP at 500 ppm (99.99%), 250 ppm (85.64%) and 100 ppm (82.64%) and hexaconazole 5% EC at 500 ppm (99.99%), 250 ppm (84.75%) and 100 ppm (77.58%). Among non-systemic fungicides, the highest growth inhibition of 90.88, 86.01 and 81.19 per cent were recorded with mancozeb 75% WP at 1500, 1000 and 500 ppm concentration, respectively. Among the combined fungicides, the highest growth inhibition 99.99 per cent was recorded with Carbendazim 12% + Mancozeb 63% WP at concentrations of 1500, 1000 and 500 ppm, respectively.
LIPOIC ACID-CONTAINING PORPHYRINIC DERIVATIVES FOR MITOCHONDRIA TARGETING APPLICATIONS
Authors:   , Kaewwichit Duangkamon
Published: November 2023

In this research, an asymmetric water-soluble porphyrin having pyridinium and lipoic acid-based meso-substituents was successfully synthesized. All new compounds were characterized by NMR spectroscopy and mass spectrophotometry. Their optical properties were also investigated by UV-visible and fluorescence spectrophotometry. For the biological studies, low cytotoxicity (IC50 = 25–150 µg/mL) of these compounds in HaCaT and HDFa cells was observed. However, based on ROS generation assay, these compounds did not exhibit antioxidative activity in both kinds of cells. Moreover, mitochondria-targeting evaluation of the synthesized compounds showed that these compounds can be accumulated in the mitochondria of the HaCaT cells.
Development of urinary albumin detection kit
Authors:   , Hongtanee Lalitphan
Published: November 2023

This work developed the colorimetric determination of bovine serum albumin (BSA) and creatinine in urine sample. The studied ranges are 0 – 30 mg/L for BSA and 0 – 3000 mg/L for creatinine. The layer-by-layer deposition technique (LbL) was used to modify the surface of cellulose acetate membrane (CA) for albumin and creatinine extraction via electrostatic interactions. The suitable polyelectrolyte pair used in this work was poly(diallyl dimethyl ammonium chloride (PDADMAC) and poly(sodium 4-styrenesulfonate) (PSS). For the albumin determination, BSA prepared in synthetic urine was diluted 4-fold with 5 mM pH 7 phosphate buffer and filtered through the modified membrane of which PDADMAC was the outermost layer. The adsorbed BSA on the membrane was eluted and detected with tetrabromophenol blue in Triton X-100 at pH 3, resulting in a change in the color of TBPB-BSA solution from yellow to green. The absorbance intensity was measured with a UV-Vis spectrophotometer at 625 nm. The relationship between the BSA concentration and the absorbance intensity was observed in the range of 2.5 – 7.5 mg/L with the detection limit of 0.47 mg/L. The recovery of albumin from samples was 81.2 – 106.9% and the relative standard deviation was 0.8 – 3.2%. For the creatinine determination, the modified membrane of which PSS was the outermost layer was used to extract creatinine. The adsorbed creatinine on membrane was detected with Jaffé reaction, forming a yellow-orange complex. The color intensity was monitored by Image J software. The linearity of this method was in the range of 0 – 100 mg/L and the limit of detection was found to be 3.53 mg/L. The recovery of creatinine from samples was found in the range of 102.2 – 103.3% and the relative standard deviation was less than 7.6%. Moreover, the color change from albumin and creatinine determination could be observed visually. Therefore, the proposed method could be applied to determine albumin and creatinine in urine samples by both colorimetric and naked eyes detection for the early diagnosis of kidney failure.
Opn immobization on surface-graftedpoly(acrylic acid)brushes to promote osteoblast adhesion and proliferation
Authors:   , Damsongsang Panittha
Published: November 2023

In this research, glass substrates were grafted with poly(acrylic acid) (PAA) brushes via surface-initiated reversible addition-fragmentation chain transfer (RAFT) polymerization. 1H NMR analysis of PAA formed in solution indicated that the polymerization was well-controlled. Osteopontin (OPN) synthesized from Tobacco plant was then immobilized on the surface-grafted PAA brushes (SiO2/Si-OPN) using EDC/NHS as coupling agents. Stepwise surface modification was verified by water contact angle measurements, Fourier transform-infrared spectroscopy (FT-IR), x-ray photoelectron spectroscopy (XPS) and atomic-force microscopy (AFM). Quantification of OPN immobilized on surface was determined by ELISA assay. The percentages of OPN immobilization efficiency were higher than 95% at all concentration tested. MC-3T3-E1 cells cultured on the SiO2/Si-OPN were better spreading than those on pristine glass substrate and gelatin-modified surface. Moreover, polymerase chain reaction (PCR) analysis indicated that expression levels of the following genes, namely collagen I (Col I), Osterix (Osx), Runt-related transcription factor 2 (Runx2) of MC-3T3-E1 cells on the SiO2/Si-OPN were higher as compared with those on pristine glass substrates and gelatin-modified surface. As determined by MTT assay, OPN could not promote cell proliferation. These results indicated that OPN immobilization on surface-grafted poly (acrylic acid) brushes can promote osteoblast adhesion and differentiation implying that OPN can potentially be used for bone tissue engineering applications.
POLYSTYRENE SURFACE GRAFTED WITH POLY(N-ISOPROPYLACRYLAMIDE) BRUSHES
Authors:   , Chailom Piriya
Published: November 2023

Porous polystyrene (PS) film was prepared by casting a mixed solution of polystyrene (Mw=3x106 Daltons) and block copolymer of polystyrene and poly(acrylic acid) (PS130-b-PAA12) in weight ratio of 9:1 on glass substrate via breath figure method. As monitored by scanning electron microscopy, the casted film was porous and exhibited ordered honeycomb pattern with pore diameter of 7.67±0.69 µm. This porous PS film was then coated with polydopamine modified with bromoester group (p-DA-BiBBr) that functions as initiator for growing thermoresponsive poly(N-isopropylacrylamide) brushes via activators regenerated by electron transfer for atom transfer radical polymerization (ARGET ATRP). The success of p-DA-BiBBr coating and PNIPAM grafting on porous PS film was verified by water contact angle measurements, Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and x-ray photoelectron spectroscopy (XPS). As evaluated by proton nuclear magnetic resonance (1H NMR) spectroscopy and gel permeation chromatography (GPC), the synthesized PNIPAM in solution had a degree of polymerization around 300. The thickness of the PNIPAM layer was found to be 18.3 nm as estimated by ellipsometry. This thickness should be suitable for cell attachment and detachment studies. From preliminary investigation, it was found that approximately 12% of attached keratinocyte cells at 37oC were detached from PNIPAM-grafted porous PS film when the temperature was decreased to 20oC, below LCST of PNIPAM, for 2 h. However, such percentage of cell detachment was not significantly different from that of PNIPAM-grafted flat PS film (10%).
Synthesis of mansonone derivatives as antibacterial agents
Authors:   , Hairani Rita
Published: November 2023

Seven compounds isolated from the CH2Cl2 extract of Mansonia gagei Drumm. heartwoods, i.e. mansorin A (1), mansorin B (2), mansorin C (3), mansonone C (4), mansonone E (5), mansonone G (6), and mansonone H (7), were evaluated for their antibacterial activities towards Staphylococcus aureus ATCC 25923, Streptococcus mutans ATCC 25175, Streptococcus sobrinus KCCM 11898, Propionibacterium acnes KCCM 41747, and Salmonella typhi ATCC 422. 6 displayed good activity and was obtained in large amount among other mansonones, therefore some derivatives of mansonone G were carried out and their antibacterial activity were evaluated. Twenty mansonone G derivatives (G01 – G20) were obtained by modified the hydroxyl group at C6 of 6. Among these derivatives, G02 – G20 were identified as new semisynthetic compounds. In antibacterial activity, most of mansonone G derivatives showed better activity than 6. G07 and G08 displayed sixty-four times lower in MIC than its natural 6. Moreover, anti-adipogenic activity was also performed to all compounds. 4 and 6 possessed the suppression in 3T3-L1 pre-adipocytes differentiation. The suppression were also observed by G15, G16, and G17. Further investigation on their mechanism indicated that G15, G16, and G17 had potential activity in adipogenesis by suppressing the production of adiponectin.
Separation of arsenic species by ion exchange resin and mixed metal oxides for determination by ICP-OES
Authors:   , Thongkhao Thanaphat
Published: November 2023

A novel method for speciation of arsenic (As(III), As(V) and dimethyl arsenic acid (DMA)) in water using solid phase materials including strong base anion exchange (SBAE) resin and iron-copper binary oxide coupled with inductively coupled plasma optical emission spectrometry (ICP-OES) was developed. This study aims to separate and quantitatively determine water-soluble arsenic (As(III) As(V) and dimethyl arsenic acid (DMA)) towards two steps of solid phase extraction at the same pH. In this work, nanostructured iron-copper binary oxide was prepared by using coprecipitation method. The effect of pH of solution and concentration of eluent on adsorption behavior of As(III), As(V) and DMA were investigated. Results concluded that SBAE resin can adsorb As(V) at pH 11 while As(III) and DMA could not be retained. For iron-copper binary oxide material, DMA could not be retained while As(III) and As(V) could be adsorbed at pH 11. The determination of each arsenic species was achieved by ICP-OES. The maximum adsorption capacities of As(V) on SBAE resin and As(III) on iron-copper binary oxide were 10.6 mg g-1 and 36.8 mg g-1, respectively.
Interpretation of rapid pile load testing
Authors:   , Duc Lam
Published: November 2023

Nowadays, the rapid pile load testing has been used frequently by geotechnical engineers in the world. Comparing to static load testing, the rapid method is quicker and more efficient. However suitable techniques shall be used for obtaining load-displacement curves from rapid load test results. Among methods in literatures, the Unloading Point method can be considered as the simplest and most common. It performs well in sandy soil, but over-predicts the capacity of piles in clayey soils. Therefore, a new technique which performs well in both of sandy and clayey grounds is proposed in this study. Moreover, the existing dynamic pile load test is modified to approximately meet the requirements of rapid test on driven piles. The modification and illustration of rapid tests on driven piles are carried out by GRLWEAP 2010.
Effect of Quercetin on apoptosis and autophagy through BAD and BCL-2 signaling pathway in human acute myeloid leukemia cell lines
Authors:   , Yoosabai Alisa
Published: November 2023

Acute myeloid leukemia (AML) is a hematopoietic malignant disease that common in the elderly.  Current therapeutic approaches for AML have many side effects. For this reason, natural compounds are considered as alternative medicine.  In the present study, we focus on anti-leukemic activity of quercetin, a natural flavonoid broadly founded in many plants and fruits.  Our study founded that treatment of U937 cells with quercetin resulted in growth inhibition as well as decreased in cell viability in dose-dependent manner after 24 h of incubation.  Apoptosis assay using annexin V and propidium iodide (PI) showed that quercetin significantly increased in the percentage of apoptotic cells.  Moreover, exposure of U937 cells to quercetin augmented the expression of phosphatidylethanolamine conjugated form of microtubule-associated protein light chain 3 (LC3-II), a hallmark of autophagy.  Furthermore, pretreatment of U937 cells with autophagy inhibitor, 3-Methyladenine (3-MA), dramatically enhanced quercetin-induced apoptotic cell death, indicated the cytoprotective role of autophagy in quercetin-treated AML cells.  Western blot analysis was performed to investigate the expression of Bcl-2 family proteins, well-known modulators of apoptosis, after treated cells with quercetin.  Results showed that quercetin downregulated the expression of Bcl-2 and phosphorylation levels of Bad and upregulated the expression of total Bad.  In conclusion, our findings provided further basis of quercetin-mediated leukemic cell death and proposed that quercetin could be considered as a potent complementary medicine for AML treatment, particularly in combination with autophagy inhibitor.
Effects of ABCC2 and SLCO1B1 polymorphisms on the treatment responses of irinotecan-based chemotherapy in Thai metastatic colorectal cancer patients
Authors:   , Treenert Spatsara
Published: November 2023

Irinotecan, anticancer which is mostly used in metastatic colorectal cancer (mCRC) as a second or third line chemotherapy. Several factors affect its efficacy and toxicity, including pharmacogenomics. This study was aimed to investigate the impacts of ABCC2 and SLCO1B1 polymorphisms on treatment responses and severe toxicities of irinotecan-based chemotherapy in Thai mCRC patients. Fifty-six participants with mCRC received irinotecan-based chemotherapy were enrolled into this prospective cohort study. Analysis of ABCC2 (C>T, rs717620) and SLCO1B1 (A>G, rs2306283) genotypes were performed. Allele frequencies of ABCC2 (C>T) and SLCO1B1 (A>G) were found at 17.86% and 76.79%, respectively. Neither of them associated with treatment responses. However, patients with allele T of ABCC2 and allele A of SLCO1B1 were associated with higher rate of clinical benefit from chemotherapy than the other group (100 % vs. 51.1%, P = 0.031). For toxicities, it was found that the risk of severe anemia, severe neutropenia and severe diarrhea were observed higher in patient with homozygous wild type (AA) of SLCO1B1 than other genotypes. This study can be concluded that combined effect of ABCC2 and SLCO1B1 polymorphisms was associated with clinical benefit of irinotecan-based chemotherapy in Thai mCRC patients.
INTERNATIONAL RETIREMENT MIGRATION OF WESTERNERS TO THAILAND: DECISION-MAKING PROCESS, WELLBEING, ASSIMILATION, AND IMPACTS ON DESTINATION
Authors:   , Tangchitnusorn Kanokwan
Published: November 2023

This dissertation examined the international retirement migration (IRM) decision-making process, subjective wellbeing, and cultural assimilation of Western retirees in Thailand by relying upon 2015-2016 mixed-methods primary data of 330 self-administered questionnaires (SAQ) and 21 in-depth interviews (IDI). Besides, from the IDI of Thai stakeholders, the researcher examined the IRM impacts and planning for the phenomenon. Both quantitative and qualitative results indicated that cost of living, climate, and people were the major pull factors of Thailand. The bulk of Western retirees migrated to Thailand after their retirement and the great majority of them were males. Most of the formerly divorced and single Western male retirees later married/partnered to local citizens after migration to Thailand. Though Western retirees were generally satisfied with their wellbeing in Thailand and/or felt well accepted by Thai society, permanent settlement in Thailand tended to be unlikely. In the future, if being incapable of living independently due to severe health conditions, negative financial circumstance, and/or an abrupt change of relationships/ marital status (e.g. divorce or widowhood), many would return to their home countries. Besides, Thailand’s unwelcoming visa policy, restricted land ownership policy, political instability, and poor environmental quality and local infrastructure were being seen as undesirable factors that could lead to their departure. In general, Thai stakeholders perceived the IRM to have positive impacts on local community. These findings altogether suggested that the IRM policies in Thailand should be more facilitating and the local environment and infrastructure should be improved.
Decomposing human capital : education and health investments in the time of population aging
Authors:   , Koda Yoshitaka
Published: November 2023

Why is the retirement age rigid while longevity improves? What are the plausible explanations for the recent upsurge in health expenditure while education expenditure has been stalemated? Complementarity between education and health capital, which encouraged education and health investments, enabled rapid economic growth and greater life expectancy in the developed economies. However, it was lost at some point in the last century, and the subsequent rise of trade-off between education and health capital has brought about low economic growth and high old-age dependency, namely the problems of population aging. By endogenizing both education and health capital accumulations, this dissertation develops the three-period overlapping generations models in order to investigate the issues such as rigidity of retirement age, financially unsustainable social security systems, and collapse of traditional family. The main findings of this dissertation are as follows: First, when highly innovative environments accelerate depreciation of productivity at old-age, people chose early retirement even if they are expected to live longer. Second, Pay-As-You-Go (PAYG) social security distorts both education and health investment decisions. The double moral hazards induce lower education and higher health investments than their optimal levels. Third, economic growth and longevity depend on the degrees of parental and filial altruism, respectively. If people are parentally and filially altruistic at varied degrees, policy changes affect their welfare differently. On the whole, the models in this dissertation succeed in replicating the trade-off between education and health capital and reveal that, in the advanced societies, investments in health tend to increase at the cost of those in education.
Analysis of high capacity mobile network with 3D in-building dense small cell
Authors:   , Saha Rony
Published: November 2023

This dissertation research emphasizes on achieving high capacity demand of next generation mobile networks (NGMN), i.e. fifth generation (5G), with small cells, i.e. femtocells, deployed in 3-dimensional (3D) indoor coverages by employing such procedures as managing co-channel interference, enforcing a minimum distance, reusing spectrum, and splitting control-plane and user-plane (C-/U-plane) of femtocells. In conventional mobile networks, a common feature is tightly coupled C-/U-plane architecture (CUCA) which is one of the major reasons for most of the problems that small cell network densification faces, e.g. complex interference management. This call for developing a new C-/U-plane split architecture (CUSA) by decoupling C-/U-plane. Further, in cellular mobile networks, most of the data traffic is generated within indoor coverages, mainly in urban environments where an existence of dense high rise multi-floor buildings is a typical scenario. Furthermore, mobile radio propagation in 3D scenario is far more complex than that of 2D scenario. These cause such inevitable issues as small cell network architecture modeling and interference characterization, resource reuse and allocation strategy development, and small cell densification limit characterization to call for their in-depth investigation and the development of new design technique for 3D in-building small cell networks. This dissertation research addresses these aforesaid issues. More specifically, the following objectives are addressed in this dissertation: (i) a review on enabling technologies for proposing a framework of NGMN architectural evolution to achieve the prospective capacity of NGMN; for cell-centric networks, (ii) an adaptive almost blank subframe (ABS) based enhanced intercell interference coordination (eICIC) enabled frequency reuse and scheduling algorithm (FRSA) for an orthogonal resource reuse and allocation (ORRA), (iii) a tractable analytical model for interference characterization and minimum distance enforcement for non-ORRA (NORRA), and (iv) a novel clustering approach along with developing a number of strategies to reuse resources in femtocells within a 3D multi-floor building; for device-centric networks, (v) a novel multi-band enabled small cell and UE architecture for uplink/downlink (UL/DL) and C-/U-plane splitting, (vi) numerous small cell base station (SCBS) architectures for performance comparisons between CUCA and CUSA, and (vii) a centralized 3D radio resource allocation and scheduling approach for CUSA.
Study on the effects of gas pressure on the liftoff of spherical particles under electric field
Authors:   , Vilaisien Monekham
Published: November 2023

The gas insulated switchgears are widely used in high voltage substation due to their advantages, such as smaller space requirement, less frequent requirement for maintenance, high operational reliability and safety. The failures in gas insulated switchgears due to the contamination of conducting particles are critical. This thesis studied the experiments on the lifting electric field of spherical particles under different gas types and pressures between parallel electrodes. The electrode gap was 10 mm. The various materials and sizes of spherical particles were used. The particle radius was 0.4, 0.68 and 1.19 mm for aluminum, 0. 5 mm for steel, and 1 mm for stainless steel spheres. We carried out the experiments under pressures of 0.5, 0.75, 1, 2 and 3 bar for the air, and 1 and 3 bar for a mixture of air/SF6 and air/N2. The proportion of gas mixtures was 1:1. The experimental results indicated that the particle liftoff depended on the pressure and the particle size for all gas media. The lifting electric field increased significantly with increasing the pressures and particle sizes. In addition, the lifting electric field of particle liftoff in the gas mixtures was smaller than that in the air under same pressure for each particle size. The difference in lifting electric field from positive and negative voltage was clear under 3 bar pressure or the particle of 0.4 mm radius in the air. However, the case of the gas mixtures indicated that the difference in the lifting electric field was significantly reduced. The difference between the electrostatic force and the gravitational force increased approximately by a linear relationship with the product of particle surface area and gas pressure. The force difference of the gas mixtures was smaller than that of the air.
MULTI-DOMAIN NETWORK DESIGN STRATEGY FOR SURVIVABLE LARGE-SCALE OPTICAL NETWORKS
Authors:   , Le Quynh
Published: November 2023

This thesis addresses two main issues of survivable multi-domain large-scale optical networks, namely domain privacy and scalability. In principle, the physical network topology of each domain can be hidden from other domains by using an aggregation model to form a network of virtual domains, thereby satisfying domain privacy requirement. First, we develop an improved aggregation model for p-cycle protection that ensures full protection against all single link failures and is more efficient than existing models. To optimize for the spare capacity requirement, Integer Linear Programming (ILP) formulations are derived. Second, we propose a new approach for multi-domain network design using shared-mesh protection where the backup capacity of intra-domain and inter-domain links can be shared more effectively. The proposed approach also provides a three-step systematic design and optimization, which allows our proposed ILP formulation to resolve larger network problems compared to single-domain network design approach. Several practical network design examples are given to illustrate the effectiveness of our proposed technique with respect to spare capacity requirement and network latency.
ORDER ALLOCATION PROCESS IMPROVEMENT IN A FOOTWEAR INDUSTRY
Authors:   , Han-ong-art Chonlada
Published: November 2023

Three heuristics are proposed to improve the product allocation process of the case study manufacturer based on three actual business constraints; customer priority, delivery time, and order size. The focused Key Performance Indexes (KPIs) include order fill rate, quantity fill rate, line fill rate, and back order rate. The proposed heuristics, together with the basic First-come-First-Serve allocation strategy, are tested with actual order and inventory data gathered from the company. The resulting KPIs are then evaluated with those of the current operation. Based on our results, all KPIs could be improved by any of the proposed heuristics, including FIFO, where the magnitude of improvement differs from one to another allocation strategy. In order to recommend the best allocation heuristic to the company, we also explore both advantages and disadvantages of each heuristic. We found that proper inventory management can play a major roll in the improvement of focused KPIs.
Comparative study of crude oil transportation
Authors:   , Sittipolkul Natawan
Published: November 2023

This comparative study applied the Analytic Hierarchy Process (AHP) to select the most suitable crude oil transportation methods that will align with the company's policy. The model enabled comparison of both quantitative and qualitative parameters involved in this decision making, which include cost factor, safety and reliability issue, environmental impact, and community acceptance survey. There are two transportation options to transfer crude oil from production station to the depot. First is the current practice using road tankers to carry crude oil using public highway. Current operation has many difficulties such as not reliable during flooding period, not being able to run at night time and also receiving complaints from nearby neighborhood. Hence, there was a proposal to install pipeline instead. However, high investment cost is required for pipeline installation and the company requires a reasonable judgment in order to sanction the project. From this thesis study, it was determined that pipeline installation is the most suitable transportation option based on the associated criterions stated above. The overall priority of pipeline installation option from Expert Choice program is 59% over that of 41% from road tanker method. The result was related to the company's safety policy to consider safety and reliability as first priority. The most critical parameter is the cost factor importance level since if varied more than +17.5%, the decision outcome will prefer the other option.
Defect Reduction in the Production of Capacitor Discharge Ignition Unit using Lean Six Sigma
Authors:   , Kittijetsada Phataraphat
Published: November 2023

The case study company for this thesis is a company that produces electrical and electronic spare parts for motorcycles. This company has been facing defect problem, whose rate is higher than expected and it keeps increasing at an average rate of one percent a year. As defects lead to a rise in production cost, from reworks and scrap, Lean Six Sigma (LSS) approach has been adopted as a research tool, where we focus only on two main products of the company, that is, Models A and B. In this setting, the applied LSS approach is typically a combination between DMAIC framework of Six Sigma and lean concepts, whose aim is to reduce defects from the production processes. In the first phase, i.e. Define phase, the problem and goal are set for each product model – the defects must be reduced below one percent and its sigma level must be at least at the standard level. Then, in Measure phase, all related information is collected and presented in the form of the Modified Value Stream Mapping (MVSM). Based on the constructed MVSM, the problems have become more visible, with all revealed pre-improvement metrics. In this pre-improvement stage, the defective rates are identified at 2.07%, or equivalently 3.54σ, for Model A and 3.5%, or equivalently 3.31σ, for Model B; whereas, the standard defective rate from the companies within the same industry is 4σ. Once all decisive information is revealed, root causes are identified by means of lean tools and techniques in Measure phase. Based on our analysis, there are four main causes and nine sub-root causes in total. However, with Failure Mode and Effect Analysis (FMEA), only five sub root causes are diagnosed as critical. This leads to three main areas of improvement; (i) the development of system and working culture to prevent malpractices, (ii) the improvement of inspection processes, and (iii) the adjustment of instructions for manufacturing processes. Lastly, in Control phase, we introduce an np-chart to continually monitor the production from batch to batch. We also suggest the company to build working culture enhancing strong relationships among organisational members. The results from the improvement for the selected two models show significant defect reduction, and so increase the production’s sigma level. For Model A, the defective rate drops to 0.57%, or equivalently 4.03σ. This defective level surpasses both company goal and standard sigma level of the industry. For Model B, however, the defective rate falls short of its sigma level’s goal of 4σ, where we achieve the sigma level at 3.87σ, or 0.9%. This could be explained by Model B’s complexities, which require skilled assemblers. Additionally, as we introduce new inspection procedures and adjustment, it would take some time before the assemblers get used to the new instructions.
DEGENERATION AND INVASION FANTASIES IN BRITISH FIN-DE-SIÈCLE NOVELS
Authors:   , Sunthikhunakorn Nathamon
Published: November 2023

Historians have suggested that, at the end of the nineteenth century, people in Britain lived their lives in fear and anxiety caused by the negative consequences of the Industrial Revolution and uncertainty about their future. The works by influential nineteenth-century European scientists such as Bénédict Augustin Morel’s Treatise on Degeneration (1857), Cesare Lombroso’s The Criminal Man (1876) and Max Nordau’s Degeneration (1892), which attempted to clarify the causes of the fears and the anxieties of the time through the concept of degeneration, made people to strongly believe that the Caucasian race would be physically degraded and, later, faced extinction because of moral and cultural decline. Writers in this period captured the anxieties about degeneration by representing them in the form of invasion fantasies in which Britain was threatened by the degenerates who transmitted moral and physical corruptions. Relying on the social and cultural context of nineteenth-century Britain, this thesis will explore how the three chosen novels that deal with invasion fantasies illustrate the problem of degeneration in their three different forms: sexuality in Bram Stoker’s Dracula (1897), race in Richard Marsh’s The Beetle (1897) and human qualities in H.G. Wells’s The War of the Worlds (1898). The thesis will argue that the novels do not simply depict threatening images of degeneration through invasion fantasies, but they also suggest resolutions to alleviate the fears and anxieties of the fin-de-siècle period by reasserting Victorian values and emphasizing the Victorians’ ability to deal with the period’s social and cultural changes of their time.
DEVELOPING EFL STUDENTS' WRITING ABILITY AND PERCEIVED WRITNG SELF-EFFICACY THROUGH GENRE AWARENESS
Authors:   , Viriya Chayata
Published: November 2023

To be able to write with an understanding of the communicative purposes are very important because it leads to clear communication and appropriateness in language use. The present study aimed to investigate the effects of the genre awareness instruction on EFL students’ writing ability, perceived writing self-efficacy, and attitudes. This study used a one-group pretest-posttest design to collect both quantitative and qualitative data. The study sample consisted of 27 first or second year undergraduate students of Chulalongkorn University who were enrolled in a required foundation English course in the summer of 2015. The research instrument was the genre awareness instruction, and the data collection instruments comprised the writing test, the perceived writing self-efficacy questionnaire, the interview protocol on perceived writing self-efficacy, and the attitude toward the genre awareness instruction questionnaire. The study findings revealed that the students’ writing ability and perceived writing self-efficacy increased with statistical significance after the implementation of the genre awareness instruction, and they had positive attitude toward the genre-based instruction, teaching steps, and teaching materials. Based on the study findings, it could be concluded that the genre awareness instruction could be effectively implemented to promote writing ability and perceived writing self-efficacy of EFL students who are trying to achieve mastery of the English writing ability.