bluuebunny/crossref_metadata_2025 huggingface dataset:
Robot-based Assembly of Hydrogen Tube Fittings for large-scale Electrolyzers
Authors: Adler Patrick , Syniawa Daniel , Christ Lukas , Kuhlenkoetter Bernd
Published: May 2023

Hydrogen is one of the main pillars in the transition to renewable energy and can be used in particular for buffering and storing energy. Electrolyzers are needed to produce sustainable, green hydrogen. Today, these electrolyzers are mainly manufactured by hand. An electrolyzer plant consists of two main com-ponents, the stack in which the actual electrolysis takes place and the balance of plant that ensures the operation of the stack. Different electrolysis technologies have essential similarities in the balance of plant so that automation can achieve particular optimization potentials at this point.

The use of automation technologies such as industrial robots is intended to bring this production to series maturity. For this reason, large-scale electrolysis plants are analyzed with regard to their design, the combination of different elec-trolysis technologies and the connection technology used. A significant propor-tion of the necessary assembly steps are cable, hose and tube connections, which automation technology has not yet been able to assemble in a process-safe and economical manner.

In this paper, the process of tube connection using tube nuts is explained in more detail and a design system for a robotic tool is presented. A robot tool is called an end-effector because it is used at the end of the robot kinematics. This end-effector is designed for use on industrial robots and is intended to make series production more economical. For this purpose, the necessary information pro-cessing, material flows and energy transformations are investigated and their in-terrelationships are presented. The goal is to evaluate a suitable physical operat-ing principle for bolting hydrogen tube nuts.
Monitoring Second Language Learning with PageRank-Based Student Performance Analysis
Authors: Parra Iñigo
Published: May 2023

The use of technology has permeated all aspects of modern society, including education. Within pedagogy, computer- assisted language learning (CALL) has gained popularity as a result of technological advancements. The potential for combining this sub-field of L2 learning and algorithm-driven approaches to monitor in-class performance has remained unexplored. This study draws on PageRank (PR) and social network analysis (SNA) to monitor student interactions in an SLA environ- ment. This study compares the effectiveness of PageRank and eigenvector centrality in reflecting student in-class performance using data from an L2 Spanish lecture. The results suggest that PageRank outperforms other metrics at abstracting in-class performance, showing 91% of score uniqueness against the 33% obtained by eigenvector centrality.
Opticalparametric amplifiers in SiN waveguides coated with graphene oxide thin films
Authors: Moss David
Published: May 2023

Optical parametric amplification (OPA) represents a powerful solution to achieve broadband amplification in wavelength ranges beyond the scope of conventional gain media, for generating high-power optical pulses, optical microcombs, entangled photon pairs and a wide range of other applications. Here, we demonstrate optical parametric amplifiers based on silicon nitride (Si3N4) waveguides integrated with two-dimensional (2D) layered graphene oxide (GO) films. We achieve precise control over the thickness, length, and position of the GO films using a transfer-free, layer-by-layer coating method combined with accurate window opening in the chip cladding using photolithography. Detailed OPA measurements with a pulsed pump for the fabricated devices with different GO film thicknesses and lengths show a maximum parametric gain of ~24.0 dB, representing a ~12.2 dB improvement relative to the device without GO. We perform a theoretical analysis of the device performance, achieving good agreement with experiment and showing that there is substantial room for further improvement. This work demonstrates a new way of achieving high photonic integrated OPA performance by incorporating 2D materials. 
Bangladesh's Sustainable Water Production Solutions: An Analysis of Different Methods
Authors: Khan M. Abdullah , Shamsuzzaman Md , Labib Farhan , Islam Sayma , Mashira Mysun , Al-Saad Md. Abdullah
Published: May 2023

In Bangladesh, access to clean water is a major problem for many areas because of its location, lack of freshwater resources, and growing population. In this paper, we explore sustainable methods for producing clean water that may help in resolving Bangladesh's problems with water shortage. We conduct a thorough analysis of several technologies and procedures that are appropriate for Bangladesh. We assess these approaches based on their cost-effectiveness, scalability, environmental impact, and sustainability. According to our findings, these technologies can be useful for alleviating Bangladesh's water shortage, particularly in rural regions where access to clean water is scarce. We also stress the value of community knowledge and participation in the effective application of these technologies.
Distributed Noncooperative MPC for Energy Scheduling of Charging and Trading Electric Vehicles in Energy Communities
Authors: Mignoni Nicola , Carli Raffaele , Dotoli Mariagrazia
Published: May 2023

In this paper, we propose a novel control strategy for the optimal scheduling of an energy community constituted by prosumers and equipped with unidirectional vehicle-to-grid (V1G) and vehicle-to-building (V2B) capabilities. In particular, V2B services are provided by long-term parked electric vehicles (EVs), used as temporary storage systems by prosumers, who in turn offer the V1G service to EVs provisionally plugged into charging stations. To tackle the stochastic nature of the framework, we assume that EVs communicate their parking and recharging time distribution to prosumers, allowing them to improve the energy allocation process. Acting as selfish agents, prosumers and EVs interact in a rolling horizon control framework with the aim of achieving an agreement on their operating strategies. The resulting control problem is formulated as a generalized Nash equilibrium problem, addressed through the variational inequality theory, and solved in a distributed fashion leveraging on the accelerated distributed augmented Lagrangian method, showing sufficient conditions for guaranteeing convergence. The proposed model predictive control approach is validated through numerical simulations under realistic scenarios. 

This preprint has been accepted for publication in IEEE Transactions on Control Systems Technology.  

How to cite: N. Mignoni, R. Carli and M. Dotoli, "Distributed Noncooperative MPC for Energy Scheduling of Charging and Trading Electric Vehicles in Energy Communities," in IEEE Transactions on Control Systems Technology.
Distributed Noncooperative MPC for Energy Scheduling of Charging and Trading Electric Vehicles in Energy Communities
Authors: Mignoni Nicola , Carli Raffaele , Dotoli Mariagrazia
Published: May 2023

In this paper, we propose a novel control strategy for the optimal scheduling of an energy community constituted by prosumers and equipped with unidirectional vehicle-to-grid (V1G) and vehicle-to-building (V2B) capabilities. In particular, V2B services are provided by long-term parked electric vehicles (EVs), used as temporary storage systems by prosumers, who in turn offer the V1G service to EVs provisionally plugged into charging stations. To tackle the stochastic nature of the framework, we assume that EVs communicate their parking and recharging time distribution to prosumers, allowing them to improve the energy allocation process. Acting as selfish agents, prosumers and EVs interact in a rolling horizon control framework with the aim of achieving an agreement on their operating strategies. The resulting control problem is formulated as a generalized Nash equilibrium problem, addressed through the variational inequality theory, and solved in a distributed fashion leveraging on the accelerated distributed augmented Lagrangian method, showing sufficient conditions for guaranteeing convergence. The proposed model predictive control approach is validated through numerical simulations under realistic scenarios. 

This preprint has been accepted for publication in IEEE Transactions on Control Systems Technology.  

This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible 
Fostering Learning Motivation of Students with Reading and Spelling Difficulties by an AR-Enhanced Gamified Educational App for Literacy Learning
Authors: Tiede Jennifer , Treacy Rita , Grafe Silke , Mangina Eleni
Published: May 2023

Students with special educational needs benefit from carefully designed learning approaches that consider both their individual learning requirements and the advances in teaching and learning methods and tools. This paper presents the initial exploratory results from a pilot study on the advancement of literacy skills through an innovative Augmented Reality (AR)-enhanced gamified educational app for students diagnosed with reading / spelling difficulties or dyslexia. A sample of 5 teachers and 23 students worked with the AR app for the duration of a school term and filled in standardized scales on student motivation upon completion of the pilot study. The analysis of the results indicates that both groups of teachers and students found the AR app motivating to a certain degree. However, there were challenges within the pilot implementation that impeded the successful app use and potentially delimited the perceived motivational effects. Conclusions and outlooks of research perspectives for further development highlight the necessity for further research in this important field.
On the Optimal Evaluation of the Angle of Irradiance and the Orientation for an IRS-aided Indoor VLC
Authors: Bhar Mohit , Kumar Sameer , Singh Anand , Bohara Vivek Ashok , Srivastava Anand
Published: May 2023

The recent advancements in visible light communication (VLC) will pave the path for high precision, cost-effective, power-efficient, and secure indoor communication networks. The characteristics of VLC make them a potential candidate for the 6th generation of cellular standards, specifically for applications related to short distance and high throughput communication scenarios. However, indoor VLC faces some challenges such as line-of-sight (LoS) link blockages due to obstacles, and uneven power distribution due to unguided non-Line of Sight (NLoS) reflections from the wall which limits its large scale deployment in dense scenarios. In this paper, we have proposed an intelligent reflecting surface (IRS)-aided indoor VLC system with an optimal irradiance angle guided toward the user subject, which can facilitate optimal orientation of the IRS element in order to maximize the received power at the user. Further, we also derive the closed-form expression for the obtained optimal irradiance angle, essentially a cosine of the angle of irradiance for an element of IRS based on the location of IRS and the receiver's (users) position. In the designing of the irradiance angle, we considered all 4 vertical walls of the room for placing the IRS. In addition, for a given receiver, we have proposed an algorithm to find the optimal orientation of an element of IRS that will produce the maximum power at the receiver. The proposed algorithm returns the rotation angles which will result in the optimal orientation of the element with the time complexity of O(1).
Noninteger dimensionality, nonlocal noise and self-decoherence
Authors: Kak Subhash
Published: May 2023

This paper argues that noninteger dimensionality creates a hitherto unexplored source of nonlocal noise, called ND noise or NDN, that is likely to play a role in measurements at very small distances. New analysis on scale invariant probability distributions arising from noninteger dimensionality is presented. The significance of this when considering performance and noise-correction coding in models of quantum computing is indicated. It is argued that NDN noise will lead to decoherence even without interaction with the environment and it is likely to be relevant also in models of cognition.
Automatic Damage Detection of Bridge Finger-Type Expansion Joints Based on Video Object Detection and Sound Recorded on Vehicle
Authors: Imai Takanori , SU Di , Mizutani Tsukasa , Xue Kai
Published: May 2023

Bridge finger type expansion joints are widely used because of their durability. However, they are susceptible to damage from fatigue and corrosion, and making the development of efficient damage detection methods crucial for preventing serious accidents. This study proposes a framework for automatic damage detection by simply driving in a vehicle, consisting of two steps: (1) detection of expansion joints by applying object detection to smartphone video, and (2) calculation of damage scores by passing sound recorded by an on-vehicle microphone. YOLOv5 object detection successfully detected 99.8% of expansion joints in the first step. Regarding the second step, experiments were conducted using one intact and four specimens modeling incremental damage. Finally, the damage score was proposed to quantify the sound of contact between among damaged structural members. After applying the proposed method to expansion joints that are in service, those identified as needing urgent replacement (Urgent Replacement Needed or U.R.N specimens) scored in the top 0.1% of the distribution of scores, indicating low false positives.
The spread of Hindu-Arabic numerals among practitioners in Italy and England (13th-16th c.): two moments of a European innovation cycle?
Authors: Danna Raffaele
Published: May 2023

Together with introducing a set of key innovations in commercial practices, the merchant-bankers of the commercial revolution of the 13th century were also the first European economic agents to adopt Hindu-Arabic numerals. As practical arithmetic provided the mathematical foundation for commercial innovations, studying its European spread provides a particularly suitable angle to study the diffusion of practical knowledge in the pre-modern period. Italy was the early adopter of these techniques, while in England these practices became widespread at the onset of the little divergence. In this paper, I discuss in comparative perspective the social diffusion of this knowledge in Italy and England, and its wider impact. On the one hand, this analysis makes it possible to show a number of parallels between the trajectories followed by these societies. On the other hand, it allows to observe the complex interactions between practical knowledge and wider economic, institutional, and social changes.
Le conseguenze economiche dell’innovazione bellica. La produzione di «artiglierie alla francese» a Firenze tra Quattro e Cinquecento
Authors: Ansani Fabrizio Antonio
Published: May 2023

The paper aims to assess the financial impact of the rapid assimilation of the French-style artillery into Italian warfare. The focus will be on the policy adopted by the Florentine Republic to improve the efficiency of its logistic system during the War of Pisa (1494-1509): through the analysis of public records, the research will highlight the significant transformations occurred in late medieval military industry, reevaluating the importance of the trade in strategic materials for the early modern economy and demonstrating the concerted effort made by the rising renaissance state to establish a monopoly on the manufacture of arms and «munitions».
Productivity? – Yes, but subject to sustainability! An evidence of (re)emergence of accounting for sustainability from the French agricultural authors from the XVII to the beginning of the XIX centuries
Authors: Altukhova-Nys Yulia
Published: May 2023

Five decades ago, first works and researches that have as title or subject « Envi-ronmental accounting », « Ecological accounting », or « Social accounting » have emerged. In these works, there are notably examples of accounting for strong sustainability approach in the agricultural sector. This paper searches for account-ing for sustainability premise in the French agricultural accounting literature of XVII-beginning of XIX centuries. It demonstrates that this literature presented some strong sustainability issues, although as a productivity and innovation dif-fusion condition, even earlier that the term of “accounting for sustainability” ex-isted.
خمرة العشق في شعر ابن الفارض وجلال الدين الرومي
Authors: الفياض حسن , محمد نرجس
Published: May 2023

يعد النبيذ والشراب من جملة الألفاظ الرمزية الذي أخذت مكانها في شعر ابن الفارض وجلال الدين الرومي فمعاني الخمر وتعابيرها المرتبطة بشرب الخمرة والسكر والساقي يذهب بذهن الشعراء إلى المعشوق الحقيقي والعشق والمحبة الأزلية حيث يصورون من خلالها أجمل الصور الشعرية.

وتناول البحث أمور عدة وهي: الخمرة في شعر ابن الفارض وجلال الدين الرومي، والمضامين الخمرية المشتركة في شعر ابن الفارض وجلال الدين الرومي.
جهود النبي محمد (ص) التعليمية في بناء الدولة
Authors: الابراهيمي حسن
Published: May 2023

يهدف الاسلام في مبادئه وأهدافه وما انبثق عنه من أحكام شاملة لشؤون الفرد والمجتمع الى تعليم الناس وتربيتهم ليكونوا قوة فاعلة ومؤثرة هدفهم الأساس تطوير المجتمع وقد اكدت النصوص القرانية على ان النبي محمد هو المعلم الأول والمربي الاكمل والقدوة المثلى ، كما اثبتت السيرة النبوية هذه الصفة والمهمة العظيمة ومن ذلك توظيفه الاساليب التربوية التي يحتاجها كل معلم من ترغيبه المسلمين على التعلم ، وطريقة تعليمه لأصحابه عن طريق الحكمة والموعظة الحسنة ،لاتصالها بتحقيق أهداف الدعوة الإسلامية في التغيير وبناء شخصية الإنسان المسلم ، وقد تولد من هذه الجهود تطورا في العلوم من حيث المضمون والمنهج .
Persepsi Masyarakat Terhadap Penambangan Batu Kapur
Authors: Helma Wa Ode , Amaluddin La Ode , Andrias
Published: May 2023

The territory of Indonesia has 0.08% of the land area of the karst landscape. This has the potential to improve people's welfare. This study aims to: 1) describe the condition of limestone in Oengkolaki Village; and 2) describe the community's perception of the limestone mining of Oengkolaki Village. The method used in this research is descriptive qualitative method. The results of this study indicate that: 1) limestone mining has been carried out several years ago where mining activities can help the community's economy and can create jobs that can improve people's welfare directly by the people around the mining area; and 2) the community's perception of limestone mining gave a positive response which could be seen from the majority of community responses stating that this limestone mining activity affected the activities of the Oengkolaki Village community.
STRATEGIES AND DIGITAL INTERNET MARKETING TOOLS FOR COMMERCIAL MEDICAL ORGANIZATIONS PROMOTION
Authors:   Voronezh state university, Voronezh, Russia, Sova Anastasiya N.
Published: May 2023

The article deals with the problems of management of commercial medical organizations in the context of promoting their medical services based on the use of strategies relevant to medical institutions implemented through digital tools of Internet communication interaction with real and potential consumers. In the current conditions of growing digitalization of all spheres of society, it is already difficult to imagine the process of providing services, including medicine, without interaction via the Internet. At the same time, the real efficiency of traditional offline channels is falling, giving way to online space, and only those companies that have been able to adapt to the harsh market realities “survive”. In this regard, the author identified the most suitable promotion strategies for medical organizations and the corresponding digital tools. And also taking into account various Russian and Western research, publications on this topic and modern experience, the researcher proposed an effective strategy for medical organization promotion based on Internet marketing tools, which were tested in one of the private medical clinics in Voronezh. The presented strategy can be used with certain transformations by other commercial medical institutions and enterprises of beauty industry.
HUMAN–LONG-TAILED MACAQUE INTERACTIONS AND ECOTOURISM POTENTIAL IN THE GUNUNG KERIANG RECREATIONAL PARK, KEDAH, PENINSULAR MALAYSIA
Authors: Taufet-rausdi N.E.A. , Md-Zain B.M.
Published: May 2023

The long-tailed macaque (Macaca fascicularis) is among the Cercopithecidae primates that can be found in Gunung Keriang Recreational Park (GKRP), Kedah, Peninsular Malaysia. Its population size, human–primate interactions, and public perceptions have never been revealed. This study aimed to estimate the population size, evaluate interactions between macaques and visitors, determine the perception of visitors and locals toward primates, and assess the potential of GKRP as ecotourism site. The population size of long-tailed macaques was estimated through census walk, whereas the interactions between visitors and macaques were evaluated through scanning sampling technique. The perception of visitors and local people and the potential of GKRP as ecotourism site were determined through a questionnaire. Results indicated that 72 individuals of M. fascicularis were found ranging in GKRP. The interactions between visitors and macaques in GKRP were primarily constituted of positive interactions. Contrast perceptions between visitors and local people toward GKRP primates were obtained that were due to different experiences with primates encountered by both respondent groups. Visitors were inclined to accept macaques, whereas a majority of locals dislike them. GKRP has a potential to become an established ecotourism site considering values this recreational park has given to the visitors. Research findings were anticipated to increase the knowledge on human–primate interactions and ecotourism management that ultimately contributed toward the management of long-tailed macaques and their natural habitat.
Keywords: Macaca fascicularis, long-tailed macaques, human–primate interaction, ecotourism
PEMBANGUNAN IKN SEBAGAI MERCUSUAR STRATEGIS (KAJIAN KRITIS DALAM PERSPEKTIF SUSTAINABLE DEVELOPMENT)
Authors: Prianggodo Chandra Adjie
Published: May 2023

Penelitian ini berusaha mengurai tentang pembangunan Ibu Kota Negara (IKN) sebagai mercusuar strategis dalam perspektif sustainable development. IKN yang telah ditetapkan untuk dibangun pada tataran wilayah Pulau Kalimantan tepatnya Kota Penajam Paser Utara memiliki banyak potensi untuk dikaji secara ilmiah berdasarkan data, analisa, prediksi, dan proyeksi pembangunan dari pihak pemerintah. Kajian kritis dalam mengurai aspek-aspek penguat dan penghambat dalam pembangunan IKN telah dibahas dalam penelitian ini mulai dari aspek lingkungan, sosial, pemerataan, pemanfaatan sumber daya, dan lain sebagainya. Dalam konteks pembangunan berkelanjutan (sustainable development), maka proses pembangunan IKN dapat dicermati secara jangka panjang. Berdasarkan kajian kritis dalam penelitian ini, IKN mendapat banyak sorotan yang secara garis besar esensi nya adalah mengkhawatirkan melemahnya ekosistem alami akibat kepadatan aktivitas di masa depan. Modernisasi era dan kemajuan teknologi memberikan referensi dan dorongan kuat kepada pemerintah agar menerapkan kebijakan tepat guna dalam aktivitas pembangunan, sebagaimana konsep Forest City di kota-kota dunia. Penelitian ini menggunakan metodologi yang memanfaatkan pustaka ilmiah (studi kepustakaan) sebagai basis untuk memperjelas penelitian sebelumnya, dan menambahkan analisa-analisa baru untuk menguji kualitas prospek pembangunan Ibu Kota Negara (IKN). Hasil penelitian menunjukkan bahwa pembangunan IKN memiliki sejumlah potensi masalah kompleks terutama keberlangsungan lingkungan hidup dalam jangka panjang. IKN Kota Penajam Paser Utara sebagai pengganti Jakarta sudah pasti akan menjadi mercusuar strategis yang terus tumbuh dan berkembang menjadi kota metropolitan-megapolitan dalam rangka mewadahi kebutuhan tiap-tiap daerah penyangga serta mendorong percepatan pertumbuhan kota-kota sekitar.Â
Analisis Pengaruh Barang Substitusi dan Komplementer terhadap Fungsi Permintaan Cabai di Indonesia
Authors: Adana Alif Haidir , Haryanto Lorenta In , Fitriah Nurul , Soerinda Inatsa Thurfah
Published: May 2023

The demand for red chilies grows yearly, in tandem with the increase in population or industries that use red chili as raw resources. This research aims to examine the effect of the determiner of chili demand in Indonesia and categorize them as substitutes or complementary goods. This research employs a quantitative descriptive design with secondary data analysis from the Central Bureau of Statistics. The variables studied were the average prices of red chilies, cayennes pepper, tomatoes, shallots, and garlic in Indonesia from 2010 to 2020. Cayenne pepper, tomato, garlic, and garlic prices significantly affect the 1% level, whereas the population does not affect red chili demand. The analytical tool used is the Cobb-Douglas model regression and elasticity analysis. The result shows that the impact of cayenne pepper, tomato, and garlic prices is directly proportional to the demand for red chilies. On the other hand, shallots significantly have an inverse impact on the demand for chilies. The high price of cayenne pepper, the cost of tomatoes, also the price of garlic will increase the demand for red chili, while the high price of shallots will reduce the need for red chili. According to price elasticity analysis, the cost of red chili is elastic to the demand for red chili in Indonesia. Cross-elasticity analysis shows that cayennes pepper, tomatoes, and garlic are substitutes, while shallots are complementary goods to red chilies.
The Effect of Multidimensional Employment Quality on the Health of Social Workers
Authors:   Korean Association of Health and Medical Sociology, Choi Seongsu , Maeng Jeongeun , Hwang Boram
Published: May 2023

The purpose of this study is to contribute to the health promotion of social workers by empirically identifying the effect of multidimensional employment quality on the health of social workers. To this end, this study selected dimensions and indicators of employment quality considering the characteristics of social workers based on the multidimensional employment quality evaluation framework of the United Nations Economic Commission for Europe (UNECE). In addition, using the 2020 Korea Working Conditions Survey (KWCS) data, 426 social workers were selected as study subjects and multiple regression analysis was conducted. The analysis results are as follows. First, it was found that the safety and ethics of employment, wages and welfare benefits, employment stability and social security, employment-related relationships, and work motivation had an effect on the mental health of social workers. Second, it was found that the safety and ethics of employment, working hours, and work-life balance had an effect on social workers' subjective health. Third, social dialogue, skill development, and training appeared to be the dimensions that did not affect both mental health and self-rated health of social workers. Based on the above analysis results, this study proposed policy proposals and follow-up studies for social workers' health promotions.
Experience of Dual Medical License Holders with Medical Doctor and Korean Medicine Doctor Licenses in South Korea: A Qualitative Study on Their Motivations for Obtaining Dual Licenses, and Their Study and Work Experiences
Authors:   Korean Association of Health and Medical Sociology, Park Inhyo
Published: May 2023

This study investigates the experiences of individuals holding dual medical licenses, including both medical doctor and Korean Medicine (KM) doctor licenses. The study examines their motivations for obtaining dual licenses, their study and work experiences, and their relationships with fellow students and physicians. The objective of the study is to gain insight into how dual license holders establish their identities in the South Korean medical system, which is strictly divided into modern and traditional sectors. To achieve this objective, a qualitative interview survey was conducted with six multiple licensees of medical doctors and KM doctors. The data indicate that interview participants were interested in obtaining multiple licenses either before, immediately after, or long after completing their first medical schools. During the process of acquiring multiple licenses, respondents recognized differences between biomedicine and traditional Korean medicine, and encountered conflicts between medical doctors and KM doctors in their learning process and relationships with their professors and fellow physicians. In this process, it can be observed that dual license holders are often required to choose between their Western medical identity and their KM identity, in situations where conflicts arise between Western medical doctors and KM doctors. Consequently, they may face challenges in fully utilizing their medical skills within the South Korean healthcare system. Unlike previous studies that relied on quantitative analysis, this study provides a comprehensive understanding of how the lives and experiences of medical holders of both medical doctor and KM doctor licenses are linked to the characteristics of the Korean medical system, from the perspective of medical pluralism.
Perancangan dan Pengembangan Jalur Pembelajaran pada E-Learning Menggunakan Micro-Learning
Authors: Adnas Diny Anggriani
Published: May 2023

Micro-learning adalah metode penyusunan bahan ajar yang adaptif dengan pendekatan personal untuk membantu pelajar untuk melakukan manajemen waktu yang efektif sehingga berkontribusi dalam memenuhi persyaratan keseluruhan pembelajaran sehingga memiliki kepuasan lebih tinggi terhadap pengalaman belajar dengan waktu singkat. Micro-Learning dipercaya dapat solusi untuk mengatasi daya serap siswa erhadap materi belajar. Untuk membuktikan teori tersebut, penulis melakukan perancangan dan pengembangan Jalur Pembelajaran menggunakan micro-learning pada salah satu SMA swasta di Bandung. Hasil penelitian menyatakan bahwa system dengan Jalur Pembelajaran micro-learning dapat meningkatkan hasil belajar siswa.
Securing Digital Information Using Cryptography Techniques to Enhance IT Security
Authors: Chaudhari Swati , Thakur Archana , Rajan Alpana
Published: May 2023

In information technology (IT) security, defence in depth is considered the best practice. Protecting data at rest or in transit is a part of the defence in depth approach. Confidentiality, data integrity, authentication, and non-repudiation are four IT security paradigms that need to be achieved to protect data and enhance IT security. Every scientific organisation requires i) to maintain the confidentiality of information like novel research ideas, results, patents, indigenous developed techniques and designs, human resource personal data and remarks, etc. ii) to manage the integrity of Internet-based web resources, users' credentials, etc. and iii) to manage non-repudiation and integrity guarantee enabled implementation of various software systems. The Rivest-Shamir-Adleman (RSA) technique is used to achieve confidentiality of secret data during its storage and transmission over insecure channels. The elliptic curve cryptography (ECC) technique is used for key exchange with extremely constrained devices like wireless and wireless sensor networks. Data hashing is used for maintaining data integrity; digital certificates are employed to achieve non-repudiation. In order to enhance IT security, the application of these cryptographic algorithms has been studied in data security like workflow-based applications, video conferencing, Domain Name System (DNS), web security, and radio frequency identification (RFID) systems and presented in the paper. A novel scheme to ensure website integrity and to detect website attacks using time-stamped hash functions with timestamping is also demonstrated in the paper. The study revealed that symmetric key and asymmetric key algorithms provide confidentiality and authentication. Data integrity and authentication are achieved using digital signatures and message authentication codes. Non-repudiation is established with asymmetric key algorithms and digital signatures.
Humor on Destination Websites: Effects of Humor on Attitudes and Visit Intentions
Authors: Godovykh Maksim , Fu Xiaoxiao , Leung Xi Yu
Published: May 2023

Humor is an important technique that can be applied in destination marketing to attract potential travelers. This study used a scenario-based experimental design to explore the effects of humor on destination websites. The results demonstrate that both the content of humor and the temporal
distance of the visit significantly influence tourists' attitudes and travel intentions, which are mediated by website trust. The relationships between humor content and visit intentions are stronger when travelers are promotion focused rather than prevention focused, and when they are more
familiar with destination websites. This study contributes to knowledge and practice by highlighting humor as an essential component of destination website design and providing practical recommendations for destination marketing and management.
MENGENAL PEMASARAN DIGITAL DAN MARKET PLACE: Solusi Meningkatkan Penjualan di Masa Pandemi Covid-19
Authors: Wahyudi Wahyudi , Mukrodi Mukrodi , Sugiarti Endang , Marayasa I Nyoman , Mawardi Syamsi
Published: May 2023

Today's in digital era, all sectors use technology to develop production and increase sales, including Micro, Small and Medium Enterprises. But in fact, many obstacles are faced, for example, existing human resources cannot use technology and information, the high cost of technology procurement, lack of references, and so on. The purpose of this Community Service activity is to provide additional knowledge to MSME actors in the South Tangerang Buaran Exit, about the use of digital marketing and digital markets, so that they can overcome the problem of declining sales due to the Covid-19 pandemic. The method of service activities is carried out by explaining the material and sharing experiences. In practice, exposure activities are carried out by displaying material in the form of slideshows, pictures, and videos. Meanwhile, the experience sharing session was carried out by showing directly how to do digital marketing in the digital market, such as how to register and open a digital store at Shopee, Tokopedia, Bukalapak, and so on. Then it is also explained, how to get competitive products from the marketplace. This activity was held for three days, Tuesday 05 October 2021 to 07 October 2021. Argumentatively the results of this activity became a reference for the participants on how to do business in the digital era. So that the participants gain knowledge, which makes them aware of the importance of adapting. In addition, this activity spurred the spirit of doing business with a new model, namely further optimizing online sales in the digital market.
International Academic Conference “Philological Education in the Conditions of Interuniversity Cooperation”, Arkhangelsk, NArFU, 13–14 February 2023
Authors:   Northern (Arctic) Federal University named after M.V. Lomonosov, Popova Larisa V. , Maryanchik Viktoriya A. , Shestakova Tat’yana E.
Published: May 2023

This article provides an overview of the International Academic Conference “Philological Education in the Conditions of Interuniversity Cooperation”, which was dedicated to the issues of network cooperation between universities that carry out educational programmes in philology and linguistics. The participants presented cases of designing and implementing network educational programmes as well as emphasized the importance of the exchange of knowledge and experience for the development of forms of interaction in the field of higher education. In addition, the paper provides an analysis of modern practices of interuniversity cooperation and identifies key problems of implementing various forms and models of network cooperation.
Perencanaan Jamban Sehat untuk Rumah Studi Kasus Desa Weninggalih Kabupaten Bogor
Authors: Arthono Andri , Ekadipta Ekadipta
Published: May 2023

A livable house must meet various requirements, one of which is health requirements, so that the occupants remain healthy. One of the important things that must be in a house is a latrine or bathroom. Inappropriate latrines facilitate the spread of certain diseases such as diarrheal diseases. The planning and manufacture of family latrines must follow the criteria in accordance with existing standards such as layout, water sources, construction, and also the materials. With the existence of family latrines that meet the criteria, a healthy society will be realized, as an effort to implement a healthy lifestyle for the community which was proclaimed by the Ministry of Health as a Clean and Healthy Lifestyle (PHBS). The purpose of this study was to determine the feasibility of sanitation and environmental health in Weninggalih village, Bogor Regency. Methods The research is conducted by conducting a field survey. Data collection is done by visiting the house one by one, where the physical components seen are focused on the bathroom and its supporting facilities. Based on the results of the study, it is known that the houses in the village of Weninggalaih are still very far from being feasible. This can be seen from the construction of the house with earth floors and tends to be humid. In addition, the walls use cubicles that allow air from outside to easily enter, including various small animals, the absence of a low roof, and the absence of a proper bathroom. Therefore, it is recommended to the local authorities to improve the facilities in every resident's house, including making a latrine in each house, constructing drainage channels and also infiltration wells to reduce household waste, including providing space between the house and the animal cages.
Analisis Risiko Rantai Pasok Material dalam Pelaksanaan Proyek Konstruksi Gedung Di Aceh
Authors: Hayati Kemala , Citra Keumala , Soviana Widya , Farhan Rizki
Published: May 2023

The material supply chain is a material distribution flow that varies from various sources or suppliers, until the material arrives at the project site. This study aimed to analyze material supply chain risk factors that arise in the implementation of building construction projects in Aceh Province, as well as identify solutions to prevent material supply chain risk factors that arise in the implementation of building construction projects in Aceh Province. The methods developed in this research are validity test, reliability test, quantitative descriptive, and multiple regression analysis through SPSS software version 25. From the validity test results obtained, the value of Rcount ≥ Rtable. This shows that the validity test performed on all questions is valid. Furthermore, the results of the reliability test obtained the average value of each variable of 0.708, then the reliability test was said to be reliable. Because the value of a variable is said to be reliable (reliable) if Cronbach Alpha value exceeds 0.6. Then from the results of the descriptive analysis, there are indicators that are often questioned as risk factors, namely the delay of the main contractor in paying subcontractors (X2.8) with a mean value of 3.39. This shows that the majority of respondents stated that X2.8 has a high influence on the occurrence of material supply chains in the implementation of construction projects. From the results of the correlation analysis, the R value of 0.382 (low/weak), then the two variables have a unidirectional relationship. This means that if the value of the X variable is high, then the value of the Y variable will also be high or if it means that all X variables are related to material supply chain risk, and the regression model obtained is: Ŷ=7.408+0.096X1-0.006.X2+ 0.132X3+0.112X4. From the results of the coefficient of determination, the value of R2 = 14.6%, which means that the risk of the material supply chain is influenced by supply factors, control factors, demand factors, process factors, amounting to 14.6%, the remaining 85.4% is influenced by other factors variables which are not included in this study.
GROUP DYNAMICS AND CREATIVITY: A RESEARCH WITH YOUNG ADULTS IN REGGIO EMILIA, ITALY
Authors: Komarova Sofya , Ndungu Frashia , Gavazzoli Alessia , Mineo Roberta
Published: May 2023

Modern society demands innovativeness and creativity. Few studies have examined group dynamics’ influence on individuals’ creativity. This study explores creativity in group settings and how the gender of participants influences group dynamics and the creative process by observing specific behaviors, including social interaction and play, creative action, and creative thinking. In groups of three, thirty participants (20–25 years) were asked to create mosaics representing a “learning community” using Lego DOTS. Relationships between group dynamics and creativity, creative thinking and creative action, gender of participants and their orientation to creativity and group dynamics were explored. Results showed negative relationships between group processes, creative thinking, and creative actions: the more intense the group dynamics were, the less the creativity. Surprisingly, female participants were more oriented to the creative task; male participants were more oriented to group dynamics. Further investigation of the relationship between creativity and cultural stereotypes on gender roles is needed.
Ice, Ice, Maybe? Investigating 46P/Wirtanen’s Inner Coma for Icy Grains
Authors: Kareta Theodore , Noonan John W. , Harris Walter M. , Springmann Alessondra
Published: May 2023

The release of volatiles from comets is usually from direct sublimation of ices on the nucleus, but for very or hyperactive comets other sources have to be considered to account for the total production rates. In this work, we present new near-IR (NIR) imaging and spectroscopic observations of 46P/Wirtanen taken during its close approach to Earth on 2018 December 19 with the MMIRS instrument at the MMT Observatory to search for signatures of icy or ice-rich grains in its inner coma that might explain its previously reported excess water production. The morphology of the images does not suggest any change in grain properties within the field of view, and the NIR spectra do not show the characteristic absorption features of water ice. Using a new Markov Chain Monte Carlo–based implementation of the spectral modeling approach of Protopapa et al., we estimate the areal water ice fraction of the coma to be <0.6%. When combined with slit-corrected Af
ρ values for the J, H, and K bands and previously measured dust velocities for this comet, we estimate an icy grain production rate of less than 4.6 kg s−1. This places a strict constraint on the water production rate from pure icy grains in the coma, and in turn we find that for the 2018–2019 apparition approximately 64% of 46P’s surface was actively sublimating water near perihelion. We then discuss 46P’s modern properties within the context of other (formerly) hyperactive comets to understand how these complex objects evolve.
Searching for the competitive ability of the alien seagrass Halophila stipulacea with the autochthonous species Cymodocea nodosa
Authors: Mannino Anna Maria , Balistreri Paolo , Mancuso Francesco Paolo , Bozzeda Fabio , Pinna Maurizio
Published: May 2023

The tropical seagrass Halophila stipulacea (Forsskål) Ascherson, 1867 entered in the Mediterranean Sea through the Suez Canal more than 100 years ago. In coastal-marine ecosystems the spatial niche of H. stipulacea is often overlapped with that of native Mediterranean Sea seagrasses and therefore it might out-compete them. Aiming to better understand its invasiveness potential, we monitored a Southern Mediterranean shallow coastal-marine water habitat from August 2010 to August 2011, where H. stipulacea co-occurred with the native seagrass Cymodocea nodosa (Ucria) Ascherson, 1870. Besides, the year-round dynamics of H. stipulacea was also monitored in four periods. To test the hypothesis that the presence/absence of H. stipulacea may have an effect on C. nodosa density, we analyzed the shoot density of C. nodosa in 8 sites, 4 sites where H. stipulacea was present (impacted sites) and 4 where H. stipulacea was absent (control sites). The results showed significant differences in C. nodosa shoot density according to the presence/absence of H. stipulacea, with the lowest values observed in sites where it co-occurred with H. stipulacea. We hypothesize that the dense rhizome-sediment net created by H. stipulacea can interfere with C. nodosa density, pushing down its rhizomes in the anoxic layer. The leaf features of H. stipulacea were generally comparable to those of other Mediterranean populations. In January 2011 a significant decline of H. stipulacea was observed, maybe related to changes in the environmental conditions that have become unfavorable (e.g. hydrodynamics, turbidity) and, unexpectedly, the seagrass disappeared in April 2011. In January, we also observed the occurrence of the green alien alga Caulerpa cylindracea Sonder, 1945 which rapidly invaded the bare substrate left by H. stipulacea.
A remarkable new species of the genus Psammoecus Latreille (Coleoptera, Silvanidae) from Lord Howe Island, Australia
Authors: Yoshida Takahiro , Reid Chris A. M.
Published: May 2023

A new species,Psammoecus lordhowensissp. nov., is described from Lord Howe Island, Australia. The new species is brachypterous and most likely endemic to the island. This species is distinct and can be distinguished by the following morphological characters: body rounded and convex; eyes small; temples well developed; lateral pronotal teeth absent; and hind wing strongly reduced.
A new genus of river snails, Dalipaludina (Gastropoda, Viviparidae), endemic to the Yunnan Plateau of SW China
Authors: Zhang Le-Jia , Du Li-Na , von Rintelen Thomas
Published: May 2023

A new genus of viviparid snail, Dalipaludinagen. nov., from the Yunnan Plateau of China is described within an integrative taxonomic framework based on data from the mitochondrial COI marker and morphology. Dalipaludina can be distinguished from all other viviparid genera by a unique combination shell, operculum and radula characters. Four species are assigned here to the new genus, Dalipaludina delavayanacomb. nov., Dalipaludina oxytropoidescomb. nov., Dalipaludina occidentaliscomb. nov., and Dalipaludina pyramidellacomb. nov., and one species is newly assigned to Margarya, Margarya dianchiensiscomb. nov. The four species of Dalipaludina are allopatrically distributed in shallow water lentic habitats at high altitude regions of the Yunnan Plateau.
Fixed point theorems for $ (\alpha, \psi) $-rational type contractions in Jleli-Samet generalized metric spaces
Authors: Dumitrescu Doru , Pitea Ariana
Published: May 2023

The aim of this article is to present some results regarding $ (\alpha, \psi) $-rational type contractions in the setting of the generalized metric spaces introduced by Jleli and Samet. By the nature of these types of contractions which use also comparison functions, new fixed point theorems are established. Already known facts appear as consequences of our outcomes. Examples and comments point out the applicability of our approach.
The degree sequence on tensor and cartesian products of graphs and their omega index
Authors: Xing Bao-Hua , Ozalan Nurten Urlu , Liu Jia-Bao
Published: May 2023

The aim of this paper is to illustrate how degree sequences may successfully be used over some graph products. Moreover, by taking into account the degree sequence, we will expose some new distinguishing results on special graph products. We will first consider the degree sequences of tensor and cartesian products of graphs and will obtain the omega invariant of them. After that we will conclude that the set of graphs forms an abelian semigroup in the case of tensor product whereas this same set is actually an abelian monoid in the case of cartesian product. As a consequence of these two operations, we also give a result on distributive law which would be important for future studies.