SCOPUS 2023

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A new variant of Jensen inclusion and Hermite-Hadamard type inclusions for interval-valued functions
(University of Nis, 2023) Thanin Sitthiwirattham; Ifra Bashir Sial; Muhammad Aamir Ali; HŸseyin Budak; Jiraporn Reunsumrit; M.A. Ali; Jiangsu Key Laboratory of NSLSCS, School of Mathematical Sciences, Nanjing Normal University, Nanjing, 210023, China; email: mahr.muhammad.aamir@gmail.com
In this research, we give a new version of Jensen inclusion for interval-valued functions, which is called Jensen-Mercer inclusion. Moreover, we establish some new inclusions of the Hermite-Hadamard-Mercer type for interval-valued functions. Finally, we give some applications of newly established inequalities to make them more interesting for the readers. © 2023, University of Nis. All rights reserved.
Enhancing Media Literacy Knowledge in Thailand Through Interactive E-Learning Platform
(Institute of Electrical and Electronics Engineers Inc., 2023) Sangkama Sarawat; Supaporn Nhookan; Surada Chundasutathanakul; Thirachit Saenphon; Prakobkiat Imsiri; S. Sarawat; Silpakorn University, Faculty of Information and Communication Technology, Phetchaburi, Thailand; email: Sangkama9698@gmail.com; S. Nhookan; Silpakorn University, Faculty of Information and Communication Technology, Phetchaburi, Thailand; email: Nhookan_s@su.ac.th; T. Saenphon; Silpakorn University, Faculty of Information and Communication Technology, Phetchaburi, Thailand; email: Saenphon_t@su.ac.th
The purpose is to develop e-learning platform to promote educational personnel who are able to utilize their knowledge in developing public learning skills related to broadcasting and television for wise use, enabling effective teaching and learning. The second goal is to foster a body of teaching knowledge on media literacy for educational institutions. This curriculum consists of 6 modules. The assessment of the appropriateness of the curriculum and instructional media in the public learning skills development project regarding broadcasting and television businesses, for knowledgeable utilization by experts, is divided into 5 sections according to the type of media as follows: short film, motion graphics, activity manual, high school worksheet, booklet, and web materials. The evaluation by the expert indicates that all the media are excellent. The evaluation, conducted by 61 teachers and 1,388 students, concluded that platforms containing all five media types are highly suitable. © 2023 IEEE.
INTRUSION DETECTION SYSTEM (IDS) DEVELOPMENT USING TREE-BASED MACHINE LEARNING ALGORITHMS
(Academy and Industry Research Collaboration Center (AIRCC), 2023) Witcha Chimphlee; Siriporn Chimphlee
The paper proposes a two-phase classification method for detecting anomalies in network traffic, aiming to tackle the challenges of imbalance and feature selection. The study uses Information Gain to select relevant features and evaluates its performance on the CICIDS-2018 dataset with various classifiers. Results indicate that the ensemble classifier achieved the highest accuracy, precision, and recall. The proposed method addresses challenges in intrusion detection and highlights the effectiveness of ensemble classifiers in improving anomaly detection accuracy. Also, the quantity of pertinent characteristics chosen by Information Gain has a considerable impact on the F1-score and detection accuracy. Specifically, the Ensemble Learning achieved the highest accuracy of 98.36% and F1-score of 97.98% using the relevant selected features. © (2023), (Academy and Industry Research Collaboration Center (AIRCC)). All Rights Reserved.
Rural Tourism Households Adapting to Seasonality: An Exploratory Sequential Mixed-Methods Study
(Multidisciplinary Digital Publishing Institute (MDPI), 2023) Zhen Su; Kun Xian; Dandan Lu; Wenhui Wang; Yinghong Zheng; Tanaporn Khotphat; D. Lu; Department of Tourism Management, Business School, Guangxi University of Finance and Economics, Nanning, 530008, China; email: ludandan@gxufe.edu.cn
The inherent vulnerability of tourism poses a substantial challenge to maintaining the productivity and stability of livelihoods among rural tourism households. Although tourism seasonality significantly influences the livelihood activities of rural tourism households, research exploring how they adapt their livelihood strategies to achieve optimal outcomes is limited. Employing an exploratory sequential mixed-methods design that combines thematic analysis and fuzzy-set Qualitative Comparative Analysis (fsQCA), we investigated the relationship between the livelihood strategies and outcomes of rural tourism households under the influence of tourism seasonality in the Lijiang scenic spot of China. The results indicate that livelihood strategies adopted by rural tourism households include ÒTourism PersistenceÓ, ÒSeasonal EmploymentÓ, and ÒSeasonal FarmingÓ during the off-season and ÒExtending Working HoursÓ, ÒIncreasing Staffing InputÓ, and ÒIncreasing Capital InputÓ during the peak season. Furthermore, these strategies form flexible combinations to realize livelihood outcomes, with ÒExtending Working HoursÓ being a necessary condition. The findings also revealed that the four configurations of seasonal livelihood strategies in the two patterns significantly contributed to high livelihood outcomes. One is named ÒPeak-Season Driven PatternÓ; the other is named ÒPeak-Off Blend-Driven PatternÓ. These findings provide theoretical and practical insights for sustainable livelihood research. © 2023 by the authors.
Instructional Design: Under the Concept of Game Based Learning for Nursing Education
(Research and Development Institute Suan Dusit University, 2023) Sunida Choosang; Niratchada Chai-Ngam; Rungnapa Pongkiatchai; R. Pongkiatchai; Faculty of Nursing, Suan Dusit University, Bangkok, 10300, Thailand; email: rungnapa_pon@dusit.ac.th
Game-based learning (GBL) is a method that motivates students to learn content in a fun way. Learners are motivated by challenge, fantasy, and curiosity in games. GBL provides learners with the opportunity to test the game and empower them to make decisions. The course content can be inserted into the minds of the learners through the game to help them develop and achieve higher learning outcomes. GBL can be used for both traditional classroom teaching and online teaching. This article presents information about game-based learning management. The concept of game-based learning and a review of the design elements of educational games are discussed. We then review the game development process and the implement of games in the classroom as well as assessing outcomes. Lastly, GBL trend for nursing education is discussed. © 2023, Research and Development Institute Suan Dusit University. All rights reserved.
Preface
(IGI Global, 2023) Pannee Suanpang
[No abstract available]
Lipid Production of Marine Green Microalgae Chlorella protothecoides BUUC1601 by Using Spent Coffee Grounds Hydrolysate
(Research and Development Institute Suan Dusit University, 2023) Rachanimuk Hiransuchalert; Nisa Siranonthana; Nuttapon Chedtaisong; Pakawan Setthamongkol; Yutthaya Yuyen; Janjarus Watanachote; Paveena Tapaneeyaworawong; Nongnuch Rungsawang; Maliwan Kutako; M. Kutako; Faculty of Marine Technology, Burapha University, Chanthaburi, Chanthaburi Campus, 22170, Thailand; email: maliwan@buu.ac.th
Spent coffee grounds are an organic waste that can be used as a source of microbial organic carbon. In this research, coffee grounds were hydrolyzed into a solution called spent coffee grounds hydrolysate (SCGH) using concentrated sulfuric acid. Then, the marine green microalgae, C. protothecoides BUUC1601, was cultured using SCGH. Growth performance and lipid accumulation of the microalgae were evaluated. The microalgae were cultured using a standard F/2 medium without and with SCGH added in the range of 2.5-15% of culture media (v/v). It was found that the microalgae had similar growth performance and biomass yield, i.e., the specific growth rate was in the range of 0.87-1.12 day-1 and the biomass yield was in the range of 0.05-0.08 g DW/L/day. Microalgae cultivation using F/2 with SCGH had an effect on lipid accumulation. It was found that using SCGH at 15% of the total volume resulted in an increase in the amount of lipid accumulation up to 66.03% of the dry weight. Of these, it was 2.89 times higher than the lipid content of microalgae cultured with no SCGH added. The content of monounsaturated fatty acids ranged from 46.15% to 46.53% and polyunsaturated fatty acids ranged from 32.40% to 34.62% of the total fatty acid content. Oleic acid (C18:1n9), an omega-9 fatty acid, was found to be the most abundant, accounting for over 30% of the total fatty acid content. In contrast, the omega-6 fatty acids linoleic acid (C18:2n6) and gamma-linolenic acid (C18:3n6) were found to be lower, accounting for 25.99%-27.20% and 6.03%-7.01% of the total fatty acid content, respectively. The omega-3 fatty acid such as alpha-linolenic acid (C18:3n3) was found at 4.20% in microalgae cultured using standard F/2 medium without SCGH, which was higher than in microalgae cultured with the addition of SCGH. Therefore, the addition of SCGH at a concentration of 2.5%-15% (v/v) can be used to cultivate C. protothecoides BUUC1601 for the lipid production with high unsaturated fatty acid content, which has the potential to be used in both aquaculture and functional food supplementation. © 2023, Research and Development Institute Suan Dusit University. All rights reserved.
On some NewtonÕs type inequalities for differentiable convex functions via Riemann-Liouville fractional integrals
(University of Nis, 2023) Muhammad Aamir Ali; HŸseyin Budak; Michal Fe_kan; Nichaphat Patanarapeelert; Thanin Sitthiwirattham
In this paper, we establish a new integral identity involving Riemann-Liouville fractional integrals and differentiable functions. Then, we use the newly established identity and prove several NewtonÕs type inequalities for differentiable convex functions and functions of bounded variation. Moreover, we give a mathematical example and graphical analysis of newly established inequalities to show their validity. © 2023, University of Nis. All rights reserved.
Paintings Depicting Beliefs from Phrommachat Texts in Wat Chi Pakhao, Bang Plama, Suphanburi
(Siam Society under Royal Patronage, 2023) Nuaon Khrouthongkhieo; Bunpod Pijitkamnerd; Titiya Netwong
The ceiling of the teaching hall at Wat Chi Pakhao, Bang Plama, Suphanburi Province is illustrated with paintings related to different methods of divination. These same methods appear in Phrommachat, a genre of popular manuals for foretelling the future and guiding important decisions in life. Nothing is known about the origins, dating, and authorship of the paintings, which appear to be unique. They demonstrate the local beliefs and artistic skills of a local community in Suphanburi. © The Siam Society Under Royal Patronage 2023.
COVID-19 MODELLING WITH SQUARE ROOT SUSCEPTIBLE-INFECTED INTERACTION
(Serbian Society of Heat Transfer Engineers, 2023) Nadia Gul; Anwar Zeb; Salih Djilali; Mazz Ullah; Zohreh Eskandari; Thitiporn Linitda; A. Zeb; Department of Mathematics, COMSATS University Islamabad, Abbottabad, Pakistan; email: thitiporn_lin@dusit.ac.th; T. Linitda; Mathematics Department, Faculty of Science and Technology, Suan Dusit University, Bangkok, Thailand; email: anwar@cuiatd.edu.pk
We propose a COVID-19 mathematical model related to functional shape with square root susceptible-infected interaction. Using the Hurwitz criterion and then a graph theoretical-method for the construction of a Lyapunov function, we discuss both local and global stability. The analytical solution of the system is obtained in a special case. A non-standard finite difference scheme is then developed with the aim to obtain a proper discrete-time version of the model. Simulations show a good agreement between the proposed discretization and the results given by standard numerical methods. © 2023 Society of Thermal Engineers of Serbia Published by the Vin_a Institute of Nuclear Sciences, Belgrade, Serbia. This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions
Factors Associated With Alcohol Consumption Among Thai People by Gender: Results From the Smoking and Drinking Behavior Survey 2014
(Wolters Kluwer Health, 2023) Somporn Sitthisongkram; Sattha Prakobchai; Nutthachayada Rajchawang; S. Sitthisongkram; Chiang Mai Province, 201 M.4, Donkeaw Sub-district, Mea Rim City, 50180, Thailand; email: somporn@bcnc.ac.th
Objective The aim of this study was to examine the factors associated with alcohol consumption among Thai people by gender using the social determinants of health theoretical framework. Method Participants were Thai people aged 15 years or older. A total of 25,758 Thai people were selected through a stratified random sampling method. The study was a secondary analysis of a national cross-sectional study using the data from the Thailand Smoking and Drinking Behavior Survey 2014. Results Thai people were regular drinkers (13.69%). Regarding gender, 26.54% of men and 2.72% of women were regular drinkers. The risk factors for regular drinking among Thai men included family members and close friends consuming alcohol, being aged 25-44 years, living in Northern Thailand, being a skilled or unskilled worker, smoking, and income of 10,001-30,000 Thai baht/month (31 Thai Baht (THB)/U.S. dollars). Protective factors against alcohol consumption were living in Southern Thailand and being unemployed/a student. For women, the risk factors for regular drinking were family members and close friends drinking as well as smoking. Being married, living in a nonmunicipal area, holding a diploma or bachelor's degree, and being unemployed/a student were protective factors against alcohol drinking among women. Factors associated with alcohol consumption among Thai people vary by gender. Therefore, solving the drinking problems should consider both the risk and protective factors for men and women separately. © Lippincott Williams & Wilkins.
STUDY OF INTEGER AND FRACTIONAL ORDER COVID-19 MATHEMATICAL MODEL
(World Scientific, 2023) Rujira Ouncharoen; Kamal Shah; Rahim Ud Din; Thabet Abdeljawad; A.L.I. Ahmadian; Soheil Salahshour; Thanin Sitthiwirattham; T. Abdeljawad; Department of Mathematics and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia; email: tabdeljawad@psu.edu.sa
In this paper, we study a nonlinear mathematical model which addresses the transmission dynamics of COVID-19. The considered model consists of susceptible (S), exposed (E), infected (I), and recovered (R) individuals. For simplicity, the model is abbreviated as SEIR. Immigration rates of two kinds are involved in susceptible and infected individuals. First of all, the model is formulated. Then via classical analysis, we investigate its local and global stability by using the Jacobian matrix and Lyapunov function method. Further, the fundamental reproduction number R0 is computed for the said model. Then, we simulate the model through the Runge-Kutta method of order two abbreviated as RK2. Finally, we switch over to the fractional order model and investigate its numerical simulations corresponding to different fractional orders by using the fractional order version of the aforementioned numerical method. Finally, graphical presentations are given for the approximate solution of various compartments of the proposed model. Also, a comparison with real data has been shown. © 2023 The Author(s).
Sustainable airport energy management: The case of the Frankfurt Airport
(Nova Science Publishers, Inc., 2023) Glenn Baxter; G. Baxter; School of Tourism and Hospitality Management, Suan Dusit University, Thailand; email: g_glennbax@dusit.ac.th
Energy management now forms a key part of airport sustainability policies and strategies. This study has used an in-depth longitudinal case study approach to examine Frankfurt Airport's sustainable energy management. The case study covered the period 2008 to 2019. The case study revealed that the airport's energy consumption displayed an upward trend from 2008 to 2016, and a general downward trend from 2017 to 2019. Throughout the study period, Frankfurt Airport introduced a range of energy efficiency related measures. These measures include the installation of high efficiency air conditioning, and ventilation (HVAC) systems in the airport's passenger terminal buildings, a reduction in lighting in the terminal building when they were not being used, turning off air conditioning systems at night, upgrading the energy efficiency of its passenger baggage conveyor system, the installation of more energy efficient light emitting diode (LED) lighting. The airport is also replacing its fleet of airport vehicles and aircraft ground handling equipment with electric powered vehicles. At Frankfurt Airport all new buildings are planned and designed for optimum energy usage. The airport's newly constructed passenger Terminal 3 has a range of energy efficiency measures, which include optimized cooling, the use of internal loads and dissipated heat from airport's baggage handling system to provide heat, LED lighting, as well as the intelligent use of daylight. The airport signed a power-purchase agreement for the supply of green electricity in 2020. Frankfurt Airport has also installed solar photovoltaic (PV) systems. The airport is also planning to use e-kerosene. © 2023 Nova Science Publishers, Inc. All rights reserved.
Purple Sweet Potato Soft Bun as a Value-adding of Local Agricultural Production
(Research and Development Institute Suan Dusit University, 2023) Boonyaporn Chuamsompong; Chanchana Siripanwattana; B. Chuamsompong; School of Culinary Art, Suan Dusit University, Suphanburi Campus, Suphanburi, 72000, Thailand; email: boonyaporn_chu@dusit.ac.th
The research was undertaken to study the appropriate substituting level of purple sweet potato (PSP) flour for bread flour in making soft buns. Soft buns with 0-50% PSP flour substituting for bread flour were prepared. Prepared soft buns were visually observed and tests were performed to determined pH, moisture, color, firmness and springiness. A hedonic test was conducted with 30 untrained panelists in order to select the suitable level of PSP flour substitution. The original soft bun and the suitable PSP flour substituted soft bun were compared regarding shelf-life and nutritional values. When PSP flour substitutions were increased from 0 to 50%, visual observation of prepared soft buns showed size decreasing, crust color changed from light golden brown to dark purplish brown, crumb color changed from off white to dark purplish brown, texture was firmer and springiness was lesser. The pH of the soft buns was 5.47 Ð 5.65, which were not significantly different. The moisture contents of the soft buns with 10-50% PSP flour substitution, 25.03-26.35%, were significantly different and slightly higher than 24.49% of the control sample (0% PSP flour substitution). The hedonic test showed that 30% PSP flour substituted soft bun had the highest score (8.16) on overall liking. Therefore, it was selected as an appropriate soft bun for further study. The shelf-life of the control and 30% PSP flour substituted soft buns strored in polyvinylidenechloride (PVDC) bags with oxygen absorber, resulted in 3 days at room temperature (25¡C) and 7 days at refrigerator temperature (4¡C). Soft bun at 30% PSP flour substitution had a noticeable increase in vitamin A (from 981.0 to 3105 µg), carotene (from 0.7 to 13.4 mg), vitamin E (from 5.5 to 11.9 mg) and potassium (from 520.4 to1093.4 mg) compared to original one. Commercial PSP soft bun production with 30% PSP flour substitution for bread flour could add value for the local agricultural produce. © 2023, Research and Development Institute Suan Dusit University. All rights reserved.
The Development of an e-Service Learning Model for Promoting a Digital Active Learning Community of Mainstreaming Students in Higher Education
(Research and Development Institute Suan Dusit University, 2023) Titiya Netwong; Bunpod Pijitkamnerd; Suratchana Chuayrodmod; T. Netwong; Department of Information Technology, Suan Dusit University, Bangkok, 10300, Thailand; email: titiya_net@dusit.ac.th
This research was a development and innovative study. The objectives were 1) to develop a model of e-Service learning for promoting a digital active learning community of mainstreaming students in higher education, 2) to study the effectiveness of the e-Service learning model for promoting a digital active learning community of mainstreaming students in higher education, and 3) to study the digital active learning community of mainstreaming students. The samples used in the research were as follows: 1) Three people consisted of experts for in-depth interviews, 2) 400 students participated to study the conditions of the mainstreaming approach and to promote the digital active learning community, 3) seven people consisted of experts for the focus group, 4) 62 students participated to study the digital active learning community of mainstreaming students, and 5) five experts certified the model. The research instruments were as follows: 1) In-depth interview for the e-Service learning model for promoting the digital active learning community of mainstreaming students in higher education, 2) a questionnaire to study the conditions of mainstreaming for promoting the digital active learning community, 3) an evaluation form for the model of the e-Service learning for promoting a digital active learning community of mainstreaming students in higher education was used to develop the model through a focus group, 4) the questionnaire on students' digital active learning community practices of mainstreaming students, and 5) an assessment form certifying the model. The statistics used in the research were percentage, mean, and standard deviation. The research results were as follows: 1. The e-Service learning model for promoting the digital active learning community of mainstreaming students in higher education consisted of 1) the components of the e-Service learning model: 1.1) preparation, 1.2) electronic social service collaboration network, 1.3) digital technology, 1.4) digital product for academic services to society, 1.5) learning outcomes, and 1.6) assessment of the learning management. 2) The steps of e-Service learning of the mainstreaming stage were 2.1) team building, 2.2) community selection, 2.3) project organisation, 2.4) project implementation, 2.5) knowledge dissemination, and 2.6) summary and reflection of the knowledge. Furthermore, the qualified experts certified that the developed model was appropriate at the highest level. 2. The implementation of the project consisted of 11 service recipients. The digital products were logos of 11 community merchants who applied for services to promote their online products. The mainstreaming students developed the necessary skills in using the programme. This incentivised the learners to be aware of contributing to the local community and creating pride and confidence in themselves. 3. For the digital active learning community of mainstreaming students in higher education, the overview of being a proactive digital learning community of students participating in practice was at a practical level every time. When considering each of the six aspects, it was found that the practice was at a practical level every time. These aspects are sorted in descending order as follows: Teamwork, knowledge reflection, learning exchange and communication, knowledge pursuit, knowledge transfer and linkage, while knowledge dissemination had a normal level. © 2023, Research and Development Institute Suan Dusit University. All rights reserved.
THE BIG IDEA Suan Dusit One World Library Ð Turn Ideas into Reality
(Research and Development Institute Suan Dusit University, 2023) Sirote Pholpuntin; S. Pholpuntin; Suan Dusit University, Bangkok, 10300, Thailand; email: cnongluck295@gmail.com
The word "Library" originated in Latin, from the word Libraria, meaning a place to store books. Over the years the meaning of the word remained the same, however the perspective of library gradually became to change over the years. Between the period of 2001 and 2019 there was a sharp decline in the number of libraries around the world, people realize that the traditional libraries were no longer inviting readers. The libraries have adapted to the needs of the modern era. They are no longer just a place to borrow books they've become a place for promoting learning and the space is designed such that the exchange of knowledge takes place freely. This evolution of libraries into learning spaces can be seen clearly in the New York public school library system. These libraries were recently redesigned by Michael Beirut, a world class graphic designer. During the redesign process he came up with the concept of OWL which can have several spell-out forms, one of them being ÒOne World LibraryÓ. In 2022, Suan Dusit University adopted the term ÒOne World LibraryÓ as its policy to improve the learning resources that are not supposed to be limited to the library only, but also to open to all spaces of the university as the ultimate learning resources for all learners. © 2023, Research and Development Institute Suan Dusit University. All rights reserved.
What Predicts Behavioral Intention in Eco-Friendly Hotels? The Roles of TouristÕs Perceived Value and Satisfaction: A Case Study of Thailand
(MDPI, 2023) Akkhaporn Kokkhangplu; Wanida Onlamai; Tananat Chokpreedapanich; Kraisak Phikul; W. Onlamai; College of Tourism and Hospitality, Sripatum University, Khon Kaen, 40000, Thailand; email: wanida.on@spu.ac.th
Currently, the hospitality industry is related to environmental issues, generating both positive and negative impacts for the earth. Tourists are interested in staying and spending money in hotels that care about the environment. Based on the previous research in the hotel industry, empirical studies showed a relationship between perceived value and tourist satisfaction in general. Consequentially, this study aimed to empirically investigate the relationship between eco-friendly perceived value (EFPV), tourist satisfaction (TS) and behavioral intention to revisit eco-friendly hotels (BIVE) in Thailand. Data was collected from tourists who used to stay in an eco-friendly hotel in Thailand. This study investigated the mediation of TS in the relationship between EFPV and BIVE. Accordingly, the method employed structural equation modeling (SEM) to appraise the hypotheses. The results showed significant positive influences between EFPV, TS and BIVE. Moreover, EFPV and TS had significant and direct positive impacts on BIVE. Additionally, TS partially mediates the relationship between EFPV and BIVE. Regarding the finding, the theoretical and practical implications for enhancing EFPV and promoting TS toward increasing BIVE in the hotel industry are proposed in this study. © 2023 by the authors.
Electrochemical properties of activated carbon from waste coffee grounds with hydrothermal-microwave radiation technique
(Springer, 2023) Wanpiti Thammasri; Romklao Jantrasee; Jitrin Chaiprapa; Sakwiboon Jantrasee; S. Jantrasee; Research and Development, Siam Silicon Co., Ltd., Khon Kaen, Muang, Thailand; email: jorsak7@gmail.com
Coffee is the most popular drinkÊconsumed by millions of people around the world every day. Global coffee production creates over 20 million tons of waste per year. There is trash, largely from the result of coffee brewing and instant coffee, readily available in vast amounts at low price or without value called waste coffee grounds. This study aimed to investigate the electrochemical properties of activated carbon made from waste coffee grounds. The activated carbon (AC) from waste coffee grounds increased porosity by KOH through the Hydrothermal-Microwave radiation technique at various times including, the surface area, the amount of microporous and mesoporous. The AC from waste coffee grounds was characterized by different techniques. Electrode preparation and electrochemical study were set up for measuring and evaluating the electrochemical properties of AC from the waste coffee grounds. The AC-20Êmin showed a high specific capacitance of 115 F/g at 1 A/g and 68 F/g at 30 A/g from the discharge appearance. The working electrode constructed from activated carbon waste coffee grounds in nickel foam gave an energy density and power density of 19.07 Wh/kg and 15,147 Wk/g, respectively. The effectiveness of the AC from waste coffee grounds in this research showed viability for fabricating energy materials. © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
A Study of Thai Massage Service Quality Effect on International Tourist Confidence
(University of Primorska, 2023) Napaporn Janchai; Glenn Baxter; Panarat Srisaeng
Wellness tourism is one of the worldÕs fastest growing industries (Global Wellness Institute, 2018). Wellness tourism has developed into a very important tourism market segment around the world over the past two decades or so. This is especially so for Thailand, where wellness tourism has become one of countryÕs most important tourism markets. In addition to attracting high-end tourists from developed and developing countries, wellness tourism also increases the economy of small or developing countries (Jagyasi, 2022). Thai massage has a strong link to wellness tourism as it is a key service for wellness tourism. In terms of the massage business, tourist confidence is the perception of service quality that influences a purchase decision. Service quality and tourist confidence are intertwined, which then leads to income and economic development. Therefore, examining service quality within Thai massage in relation to tourist confidence is important for exploring the crucial factors influencing international tourist confidence in Thai massage. The results of this research may lead to service quality development to encourage confidence among international tourists who are a significant source of foreign revenue. This research aims to examine the effect of Thai massage service quality on international tourist confidence. A survey of 400 international tourists was conducted in Bangkok, Thailand between March and May 2019, using a structured research questionnaire to collect all necessary data, which was then used to test the research hypotheses using multiple regression analysis. The study concluded that three out of five elements of service quality affect international tourist confidence. These elements include ÔEmpathy,Õ ÔTangibility,Õ and ÔResponsiveness,Õ while ÔAssuranceÕ and ÔReliabilityÕ did not have a significant effect on tourist confidence. The findings of this research establish an empirical relationship between empathy, tangibility and responsiveness of Thai massage businesses and international touristsÕ confidence. This insight of the study may help the massage business to have a better understanding about the elements of service quality that influence international tourist confidence. © 2023 University of Primorska. All rights reserved.
On some error bounds of MaclaurinÕs formula for convex functions in q-calculus
(University of Nis, 2023) Thanin Sitthiwirattham; Muhammad Aamir Ali; Jarunee Soontharanon; M.A. Ali; School of Mathematical Sciences, Nanjing Normal University, China; email: mahr.muhammad.aamir@gmail.com
The main goal of this paper is to establish some error bounds for MaclaurinÕs formula which is three point quadrature formula using the notions of q-calculus. For this, we first prove a q-integral identity involving fist time q-differentiable functions. Then, by using the new established identity we find the error bounds for maclaurinÕs formula by using the convexity of fist time q-differentiable functions. It is also shown that the newly established inequalities are extension of some existing inequalities inside the literature. © 2023, University of Nis. All rights reserved.

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