bluuebunny/crossref_metadata_2025 huggingface dataset:
Joint Clustering and Routing Optimisation for Low-power Wireless Sensor Networks
Authors: Le Viet Thanh , Bui Minh-Phung , Phan Thanh-Minh , Tran Thanh-Dung
Published: June 2023

Wireless sensor networks (WSNs) have been one of the fields that have attracted a lot of attentions from many scientific researchers in recent years. The sensor nodes of the network are fixed or moved to detect the environment and impart the data accumulated from the remote monitored regions via wireless connections. It is indicated in complex environments such as forests, deep seas, urban areas, etc., the sensor nodes in WSNs are usually tiny and battery-driven devices. Thus, energy-effective data accumulation methods required to improve the network’s lifetime are very necessary. In this paper, we propose a joint technique of fuzzy clustering and heuristic ant routing (FCHAR) to save the energy for low-power WSNs. Simulation results are shown to demonstrate the benefits of the proposed FCHAR compared to other conventional ones.
Effect of trajectory of employment status on all-cause mortality in the late middle-aged and older population: results of the Korea Longitudinal Study of Aging (2006-2020)
Authors: Yang Jeong Min , Kim Jae Hyun
Published: June 2023

OBJECTIVES: This study conducted a longitudinal analysis of the effect of trajectory of employment status (TES) on all-cause mortality in late middle-aged and older Koreans based on the Korean Longitudinal Study of Aging (KLoSA).METHODS: After excluding missing values, data on 2,774 participants were analyzed using the chi-square test and the group-based trajectory model (GBTM) for data from the first to fifth KLoSA and the chi-square test, log-rank test, and Cox proportional hazard regression for data from the fifth to eighth KLoSA.RESULTS: The GBTM analysis identified 5 TES groups: sustained white collar (WC; 18.1%), sustained standard blue collar (BC; 10.8%), sustained self-employed BC (41.1%), WC to job loss (9.9%), and BC to job loss (20.1%). Compared to the sustained WC group, the WC to job loss group had higher mortality at 3 years (hazard ratio [HR], 4.04, p=0.044), 5 years (HR, 3.21, p=0.005), and 8 years (HR, 3.18, p<0.001). The BC to job loss group had higher mortality at 5 years (HR, 2.57, p=0.016) and 8 years (HR, 2.20, p=0.012). Those aged 65 years and older and males in the WC to job loss and BC to job loss groups had an increased risk of death at 5 years and 8 years.CONCLUSIONS: There was a close association between TES and all-cause mortality. This finding highlights the need for policies and institutional measures to reduce mortality within vulnerable groups with an increased risk of death due to a change in employment status.
The significance of Early Neolithic settlement burials
Authors: Stolle Reinhard
Published: June 2023

Early Neolithic Settlement burials in Central Europe have long been treated as an irregularity and thus sparked discussions about perceptions of social deviancy. In recent years, the highly increased number of documented settlement burials suggests that they constituted an integral part of a more complex system of burial practices, which precludes a dichotomous division into ‘regular’ and ‘irregular’ burials. Based on the characteristics of a series of interments in the Central German settlement Niederröblingen, this study aims to determine the probabilities of individual agency within a framework of collective rules in the early Neolithic Linearbandkeramik culture.
The pedagogy of teacher education in Ethiopia: Reconstructing understandings and practices on teaching about teaching and learning to teach
Authors: Mihiretie Dawit Mekonnen
Published: June 2023

There is an argument that Marshal McLuhan’s ‘the medium is the message’ adage is more likely to be underpinned in the context of teacher education since pedagogy is not only a means of delivering content in teacher education but also the content (what) in teachers’ professional preparation (Grossman, 2009). The quality of teacher education depends heavily on the practice of teacher educators and the learning experiences of student teachers: Pedagogy of teacher education. The pedagogy of teacher education is conceptualized as teaching about teaching and learning to teach. Using primary data from teacher educators and student teachers and secondary data sources (documents and research studies), the paper examined and reflected on Ethiopian teacher education pedagogy. Questionnaire, interview and observation were used to collect primary data. The findings revealed ingrained assumptions that student teachers learn to teach by learning theories and facts of different courses through lectures, discussions, and group work. Teacher educators in the study characterized their typical classroom as a combination of ‘reviewing of the previous lesson, explanation, discussion, and lesson summary’ which inherently reflects features of a typical classroom in Ethiopian schools. When asked which pedagogies help student teachers to learn to teach, teacher educators mentioned group work, discussion, lecturing, oral questioning and classwork, quiz, and practicum (ordered in terms of frequencies). It is argued that teaching about teaching and learning to teach are customarily reduced to the delivery and learning of course contents rather than the ‘how’ of teaching through teacher educators’ modeling and reflection, student teachers’ school experiences, or other pedagogies that develop learning to teach among student teachers. Teacher educators’ practices, however, in some cases demonstrated elements of active learning techniques aimed at improving mastery of content and practicing teaching skills. However, their interview responses on preparing teachers largely lack pedagogies relevant to learning to teach. Efforts to improve the quality of education in general and teacher education, in particular, should prioritize the critical examination and reform of teacher educators’ preparation, professional development of teacher educators, and pedagogical practices at teacher education colleges and universities.
Using a cooperative learning strategy to increase undergraduate students’ engagement and performance: Bahir Dar university Psychology graduating students in focus
Authors: Agonafir Andargachew Moges
Published: June 2023

In the 21st century, preparing university students for real work and lifelong learning requires instructors to serve as facilitators of learning rather than as providers of information. Instruction needs to be learner-centered, active, enjoyable and engaging. As one form of active learning strategy, cooperative learning (e.g. group assignment) helps students to collaborate in the task actively and this in turn improves their learning engagement and performance. However, in my undergraduate course, when I encourage students to do assignments in groups, many of them do not take it seriously and are not committed, the final product being poor in terms of quality and participation. The objective of this action research was to improve the educational value of group assignment as one form of cooperative learning strategy by way of designing the task thoughtfully, following up and motivating students, providing constructive and timely feedback and ensuring greater engagement of students in the task. Third year psychology students volunteered to participate in the project. Phase I and Phase II (preliminary and actual action implementation make up the action research project). The outcomes of the preliminary and actual action implementation were then compared. The findings revealed that as a result of the intervention, students developed positive attitudes towards group assignment and they were more engaged in the second assignment as compared to the first (t= 6.51, p= 0.05). Students’ performances in the second test and group project was also improved (t= 2.80, p=0.05 and t=7.67, p=0.05 respectively). Based on the findings, implications for further research and action are suggested
Endometriosis-associated massive ascites in a young Nigerian lady
Authors: S. Adeniran Abiodun , A. Ijaiya Munirdeen , O.O. Ibrahim Kazeem , Ibrahim Saidu , O Folaranmi Olaleke
Published: June 2023

Endometriosis-associated massive haemorrhagic ascites is rare and poses a diagnostic challenge to the gynaecologist due to its resemblance to malignancies, especially ovarian malignancy. We report a 31-year-old nulligravida with progressive abdominal swelling, worsening dysmenorrhea, weight loss and a family history of ovarian tumour. Pelvic ultrasonography and Computed Tomography scans suggested an ovarian mass suspected to be an ovarian malignancy. Exploratory laparotomy revealed massive haemorrhagic ascites (8.6 litre) and multiple nodular masses on the anterior abdominal wall, omentum, bowel and pelvic organs, which were biopsied and confirmed on histopathology to be endometriosis. She had drainage of ascites and hormonal suppression using progestogen (Medroxyprogesterone acetate) with no recurrence in 15 months. Endometriosis should be considered in young, nulligravid women with dysmenorrhea, weight loss and ascites.
A multi-centre investigation of macrovascular and non-ocular microvascular complications in children and adolescents with diabetes mellitus in southern Ghana
Authors: Akpalu Josephine , A. Essuman Vera , M. Amoaku Winfried , Abaidoo Benjamin , Essuman Akye , Hayfron-Benjamin Charles , A. Barnes Nana , N. Tagoe Naa , Asare George , A. Ndanu Thomas , Appiah-Thompson Benedicta , D-B. Ofori-Adjei Imelda , H. Sackey Adziri
Published: June 2023

Objectives: To investigate the prevalence of macrovascular and non-ocular microvascular complications and the associated factors among children and adolescents with diabetes mellitus in selected hospitals in southern Ghana.Design: A cross-sectional study.Setting: The out-patient clinics of the Departments of Child Health, Medicine and Therapeutics, Family Medicine, Ophthalmology, and the National Diabetes Management and Research Centre, all at the Korle Bu Teaching Hospital, Accra, as well as from Cape-Coast Teaching Hospital in the Central Region of Ghana.Participants: Fifty-eight children and adolescents aged 4-19 years who had been diagnosed with diabetes mellitus.Main outcome measures: Macrovascular (peripheral artery disease and coronary heart disease) and non-ocular microvascular complications (neuropathy and nephropathy).Results: Data from 58 children and adolescents with diabetes were analysed. The mean age of participants was 14.6±2.6 years, and a female preponderance was observed (45, 77.6%). The prevalence of macrovascular and non-ocular microvascular complications was 27.6% and 8.6%, respectively. Long duration of diabetes diagnosis (p=0.044) and low triglycerides (p=0.009) were associated with microvascular complications, while high triglycerides (p=0.032), lower HDL cholesterol (p=0.046), and abnormal body mass index (p=0.020) were associated with macrovascular complications.Conclusions: Macrovascular and non-ocular microvascular complications are common among children and adolescents with diabetes in southern Ghana and are associated with a long duration of diabetes diagnosis, abnormal body mass index, low HDL cholesterol, and triglyceride levels. Therefore, the early institution of regular screening for diabetes-related complications to allow early detection and appropriate management is recommended.
The risk of prematurity in Cameroonian children born after in vitro fertilisation
Authors: F. Nzenti Aimée-Sandrine , Aimakhu Christopher , N. Koki Paul , Gensa Teshome , Sakouvogui Massa
Published: June 2023

Objective: To evaluate the risk of prematurity in Cameroonian children born after in vitro Fertilisation.Design: A retrospective cohort study.Setting: Conducted at the pediatric department of the Hospital Center for Research and Application in Endoscopic Surgery and Human Reproduction (HCRAESHR) in Yaoundé over eight months.Participants: Every newborn born after in vitro fertilisation (exposed group) and those born after spontaneous conception (non-exposed group) from a singleton pregnancy were included. Multiple pregnancies were excluded. One hundred newborns per group were recruited and matched according to the mode of delivery.Interventions: The main outcome measure was prematurity at birth. Data were collected from the medical records of the newborns and reported on individual questionnaires. The t Student test was used to assess the differences in gestational age between the two groups. The generalised linear model using binomial probability distribution was used for multivariate analysis to determine prematurity risk factors. All results with a p-value ≤ 0.05 were considered statistically significant.Results: Prematurity was significantly predominant in the exposed group (22% and 5%, respectively, p=0.002) compared to the non-exposed group. The risk of prematurity in the exposed group was 4.4 times higher than in the non-exposed group. After controlling for confounders (the maternal age, the sex of the baby, and maternal hypertension), this risk increased significantly from 4.4 to 7.67 (p=0.001).Conclusion: This study demonstrated the first evidence from our part of the world showing that in vitro fertilisation is an absolute risk of prematurity.
Incidence of blood culture-related sepsis in neonates and antibiotics sensitivity of implicated organisms in a secondary healthcare facility in Ghana
Authors: K. Wuni Francis , W. Kukeba Margaret , S. N. Dzotsi Kwashie , Abu Osman , Atobrah Patrick , Ofosu-Poku Rasheed
Published: June 2023

Objective: We determined the incidence of blood culture-related sepsis, causative bacteria, and antibiotics sensitivity among newborn babies with suggestive signs of sepsis admitted at the Upper East Regional Hospital in Bolgatanga, Ghana.Design: Prospective cross-sectional studySetting: Newborn Care Unit of the Upper East Regional Hospital, BolgatangaParticipants: Neonates admitted to the Newborn Care Unit from August 2019 to August 2020 with signs of sepsisMain outcome measures: Organisms isolated from blood cultures and sensitivity of isolated organisms to antibiotics.Results: The study included two hundred and seventy-six (276) patients. Laboratory confirmed sepsis was 13.4% (37/276). Early onset sepsis was 3.3% (9/276), while late-onset sepsis was 10.1% (28/276). The most common clinical signs associated with positive culture cases were temperature instability (35.5%), poor feeding (14.5%), neonatal jaundice (11.3%), vomiting (9.7%), and respiratory distress (8.1%). Staphylococcus aureus and Staphylococcus epidermidis were the most common bacterial isolates (46% and 32%, respectively). There was no relationship between independent variables and blood culture confirmed sepsis. Antibiotics to which isolates were most resistant included flucloxacillin 4/4, penicillin 14/15, ampicillin 16/18, and tetracycline 23/28. Bacterial isolates were most sensitive to amikacin 16/16, levofloxacin 5/5, erythromycin 8/8, cefazolin 7/8, and ciprofloxacin 18/24.Conclusion: Late-onset sepsis is a common sepsis category, and the implicated microorganisms are resistant to commonly prescribed antibiotics.
PROPERTIES OF CONCRETE WITH COATED AGGREGATES UNDER DIFFERENT LOADING CONDITIONS
Authors: Gebre Yisihak , Lahmer Tom , Müller Matthias , Wiegand Torben , Osburg Andrea , G. Tarekegn Abrham
Published: June 2023

Properties of concrete can be improved using different coating materials and chemicals. Some of the materials, however, are not effective as there is a weak bond between the coarse aggregate and the cement mortar. Hence, in this research, the mechanical and dynamic properties of concrete with epoxy resin, epoxy-sand and silicon coated aggregates at different volume fractions ranging from 5 to 15 percent were experimentally investigated. The test results indicate that there are improvements in compressive strength of concrete ranging from 10 % to 18 %, in which a maximum strength was achieved by using 15 percent epoxy-sand coating. Furthermore, a 5 % epoxy resin coating, resulting in an increase in compressive and tensile strengths of concrete by 5% and there are enhancements in static and dynamic modulus of elasticity by 2.7 %. In general, concrete specimens made with aggregates coated with epoxy-sand have higher performance in compressive strength as compared to using aggregates epoxy and silicon coated aggregates. Based on the findings of this study, it is recommended that coating of coarse aggregates with epoxy and epoxy-sand can be used as an alternative building and construction material to enhance the mechanical and dynamic properties of concrete.
AAHAR AYOJAN: LEFT OVER FOOD MANAGEMENT SYSTEM
Authors: Sharma Arpita , Jain Jhilmil , Nagpal Priyanshi , Kumari A. Charan
Published: June 2023

Food waste is a serious global problem that has significant environmental, economical, and social consequences. Many measures to decrease food waste have been proposed in recent years, including the creation of leftover food management systems. This study presents a web application-based leftover food management system with three modules: donors, non-governmental organizations, and volunteers. The system intends to bridge the gap between food waste and hunger by offering a platform for donors to give their leftover food to non-profit organizations, who may then distribute it to the needy through their volunteer network. This article presents an overview of the proposed system, including its functions and advantages. It also covers the system's challenges and limits, as well as future research directions to increase the system's performance.
RANCANG BANGUN SISTEM INFORMASI MANAJEMEN BUS MENGGUNAKAN FRAMEWORK CODEIGNITER PADA BUS PANORAMA
Authors: Siregar Togar Renaldi , Dalimunthe Yulia Agustina , Hadinata Edrian
Published: June 2023

Bus panorama merupakan perusahaan bus yang khusus digunakan dalam perjalanan wisata sesuai dengan jumlah kebutuhan penumpang. Seiring perkembangan waktu sering terjadi berbagai masalah dalam hal manajemen di perusahaan tersebut, dikarenakan semua pekerjaan di catat secara manual menggunakan microsoft excel. Mulai dari pendataan bus yang kurang lengkap seperti pencatatan plat nomor kendaraan dalam surat jalan yang masih salah, pencatat booking bus yang sering terjadi kesalahan pemesanan , hingga pencatatan gaji karyawan yang masih sering salah dalam pelaporan tujuan dari penelitian ini yaitu untuk mengetahui dan memperoleh gambaran proses pengolahaan manajemen pada perusahaan bus panorama dengan hasil aplikasi sistem informasi manajemen bus panorama berhasil dibangun dan berjalan normal dan siap dipakai pada perusahaan bus panorama.Kata Kunci : Panorama Bus, Sistem Informasi Manajemen, Sistem, Bus
PERANCANGAN SISTEM E-MARKETING PRODUK CONTENT CREATOR MENGGUNAKAN METODE SOSTAC
Authors: Juliandi Muhammad Risky , Siahaan Yanty Faradillah , - Nurjamiyah
Published: June 2023

Teknologi informasi telah berkembang salah satunya pada kegiatan content creator. Pada saat ini banyak content creator telah menggunakan media sosial sebagai pemasaran yang mereka lakukan tetapi terdapat kendala yaitu kurang lengkap informasi yang diberikan oleh content creator dan masyarakat harus mencari satu per satu media sosial yang dimiliki content creator, serta lamanya proses pencarian content creator. Strategi proses model untuk perancangan E-Marketing menggunakan pengembangan SOSTAC dan perbedaan tahapan yang akan terlibat dalam strategi pemasaran dari pengembangan strategi untuk implementasi. Sistem diimplementasikan menggunakan bahasa pemrograman PHP dan MySQL sebagai database. Teknik analisis yang digunakan adalah metode SOSTAC. Pengembangan sistem menggunakan extream programming dan perancancagan menggunakan UML. Hasil penelitiian ini adalah sistem E-Marketing content creator menggunakan metode SOSTAC. Tujuan penelitian ini adalah untuk membangun sistem E-Marketing content creator berbasis web. Sistem ini akan diuji menggunakan metode Black Box. Penerapan  sistem E-Marketing content creator menggunakan metode SOSTAC yang dapat memberikan output dari desain E-Marketing yang sangat membantu memudahkan pencarian content creator di Indonesia dan membantu mempromosikan nya dalam www.contentcreatorindonesia.com. Kata Kunci : E-Marketing, Content Creator, Extreme Programming ¸PHP, SOSTAC, dan Black Box
Harm as a Psychological Concept
Authors: Dhar Anup
Published: June 2023

This paper outlines the not-so-sharp contours of the concept of harm. It sees harm as largely a psychological concept and argues for the need of a third concept — harm, in addition to the two incumbents upon us — violence and trauma. It also argues that it is the relative blur in the use of the concept of harm that makes it fecund in terms of its capacity to unveil multiple forms and facets of human experience, including the process of self-harm.
Vectorized and Parallel Computation of Large Smooth-Degree Isogenies using Precedence-Constrained Scheduling
Authors: Phalakarn Kittiphon , Suppakitpaisarn Vorapong , Rodríguez-Henríquez Francisco , Hasan M. Anwar
Published: June 2023

Strategies and their evaluations play important roles in speeding up the computation of large smooth-degree isogenies. The concept of optimal strategies for such computation was introduced by De Feo et al., and virtually all implementations of isogeny-based protocols have adopted this approach, which is provably optimal for single-core platforms. In spite of its inherent sequential nature, several recent works have studied ways of speeding up this isogeny computation by exploiting the rich parallelism available in vectorized and multi-core platforms. One obstacle to taking full advantage of this parallelism, however, is that De Feo et al.’s strategies are not necessarily optimal in multi-core environments. To illustrate how the speed of vectorized and parallel isogeny computation can be improved at the strategylevel, we present two novel software implementations that utilize a state-of-the-art evaluation technique, called precedence-constrained scheduling (PCS), presented by Phalakarn et al., with our proposed strategies crafted for these environments. Our first implementation relies only on the parallelism provided by multi-core processors. The second implementation targets multi-core processors supporting the latest generation of the Intel’s Advanced Vector eXtensions (AVX) technology, commonly known as AVX-512IFMA instructions. To better handle the computational concurrency associated with PCS, we equip both implementations with extensive synchronization techniques. Our first implementation outperforms the implementation of Cervantes-Vázquez et al. by yielding up to 14.36% reduction in the execution time, when targeting platforms with two- to four-core processors. Our second implementation, equipped with four cores, achieves up to 34.05% reduction in the execution time compared to the single-core implementation of Cheng et al. of CHES 2022.
Pasta: A Case for Hybrid Homomorphic Encryption
Authors: Dobraunig Christoph , Grassi Lorenzo , Helminger Lukas , Rechberger Christian , Schofnegger Markus , Walch Roman
Published: June 2023

The idea of hybrid homomorphic encryption (HHE) is to drastically reduce bandwidth requirements when using homomorphic encryption (HE) at the cost of more expensive computations in the encrypted domain. To this end, various dedicated schemes for symmetric encryption have already been proposed. However, it is still unclear if those ideas are already practically useful, because (1) no cost-benefit analysis was done for use cases and (2) very few implementations are publicly available. We address this situation in several ways. We build an open-source benchmarking r framework, we explore properties of the respective HHE proposals. It turns out that even medium-sized use cases are infeasible, especially when involving integer arithmetic. Next, we propose Pasta, a cipher thoroughly optimized for integer HHE use cases. Pasta is designed to minimize the multiplicative depth, while also leveraging the structure of two state-of-the-art integer HE schemes (BFV and BGV) to minimize the homomorphic evaluation latency. Using our new benchmarking environment, we extensively evaluate Pasta in SEAL and HElib and compare its properties to 8 existing ciphers in two use cases. Our evaluations show that Pasta outperforms its competitors for HHE both in terms of homomorphic evaluation time and noise consumption, showing its efficiency for applications in real-world HE use cases. Concretely, Pasta outperforms Agrasta by a factor of up to 82, Masta by a factor of up to 6 and Hera up to a factor of 11 when applied to the two use cases.
Efficient Algorithms for Large Prime Characteristic Fields and Their Application to Bilinear Pairings
Authors: Longa Patrick
Published: June 2023

We propose a novel approach that generalizes interleaved modular multiplication algorithms for the computation of sums of products over large prime fields. This operation has widespread use and is at the core of many cryptographic applications. The method reformulates the widely used lazy reduction technique, crucially avoiding the need for storage and computation of “double-precision” operations. Moreover, it can be easily adapted to the different methods that exist to compute modular multiplication, producing algorithms that are significantly more efficient and memory-friendly. We showcase the performance of the proposed approach in the computation of multiplication over an extension field Fpk , and demonstrate its impact with record-breaking implementations of bilinear pairings. Specifically, we accomplish a full optimal ate pairing computation over the popular BLS12-381 curve, designed for the 128-bit security level, in under half a millisecond on a 3.2GHz Intel Coffee Lake processor, which is about 1.40× faster than the state-of-the-art. Similarly, we perform the same computation over the BLS24-509 curve, targeting the 192-bit security level, in ~ 2.6 milliseconds, achieving a speedup of more than 1.30x. We also report a significant impact on other applications, including protocols based on supersingular isogenies.
Information Bounds and Convergence Rates for Side-Channel Security Evaluators
Authors: Masure Loïc , Cassiers Gaëtan , Hendrickx Julien , Standaert François-Xavier
Published: June 2023

Current side-channel evaluation methodologies exhibit a gap between inefficient tools offering strong theoretical guarantees and efficient tools only offering heuristic (sometimes case-specific) guarantees. Profiled attacks based on the empirical leakage distribution correspond to the first category. Bronchain et al. showed at Crypto 2019 that they allow bounding the worst-case security level of an implementation, but the bounds become loose as the leakage dimensionality increases. Template attacks and machine learning models are examples of the second category. In view of the increasing popularity of such parametric tools in the literature, a natural question is whether the information they can extract can be bounded.In this paper, we first show that a metric conjectured to be useful for this purpose, the hypothetical information, does not offer such a general bound. It only does when the assumptions exploited by a parametric model match the true leakage distribution. We therefore introduce a new metric, the training information, that provides the guarantees that were conjectured for the hypothetical information for practically-relevant models. We next initiate a study of the convergence rates of profiled side-channel distinguishers which clarifies, to the best of our knowledge for the first time, the parameters that influence the complexity of a profiling. On the one hand, the latter has practical consequences for evaluators as it can guide them in choosing the appropriate modeling tool depending on the implementation (e.g., protected or not) and contexts (e.g., granting them access to the countermeasures’ randomness or not). It also allows anticipating the amount of measurements needed to guarantee a sufficient model quality. On the other hand, our results connect and exhibit differences between side-channel analysis and statistical learning theory.
Cryptanalysis of ARX-based White-box Implementations
Authors: Biryukov Alex , Lambin Baptiste , Udovenko Aleksei
Published: June 2023

At CRYPTO’22, Ranea, Vandersmissen, and Preneel proposed a new way to design white-box implementations of ARX-based ciphers using so-called implicit functions and quadratic-affine encodings. They suggest the Speck block-cipher as an example target.In this work, we describe practical attacks on the construction. For the implementation without one of the external encodings, we describe a simple algebraic key recovery attack. If both external encodings are used (the main scenario suggested by the authors), we propose optimization and inversion attacks, followed by our main result - a multiple-step round decomposition attack and a decomposition-based key recovery attack.Our attacks only use the white-box round functions as oracles and do not rely on their description. We implemented and verified experimentally attacks on white-box instances of Speck-32/64 and Speck-64/128. We conclude that a single ARX-round is too weak to be used as a white-box round.
The Spirit of Nationalism in Literature: A Case Study of Students in Yogyakarta
Authors: Sudigdo Anang , Pamungkas Onok Yayang , Hastangka  , Raharjo Sabar Budi , Suprapto
Published: June 2023

This research is an effort to investigate the understanding of prospective student teachers in the PGSD Study Program at "AS" Universities in Yogyakarta. The focus of the research is the understanding of nationalism and the implementation of literature as a medium of nationalism. This study used quantitative methods. Research data was conducted by conducting surveys and interviews. The survey was conducted using Google Forms media. Interviews were conducted with 30 students. The results showed that students at "U.S." colleges do not all understand national identity. Of the 30 respondents, there was 1 student who did not understand the identity of the nation. However, overall they have read many books on national identity. Students also agreed that the spirit of nationalism is an important factor that every citizen must have. In addition, students agree that the values of nationalism can be taught through literature. As a form of agreement about it, they have also implemented the practice of making poems with the theme of national identity as a representation of the spirit of nationalism. The novelty of this research is that there has been no previous research that investigates the understanding of nationalism for students, especially in the field of literature in the PGSD Study Program.
Bibliometric Analysis of TPACK Publication Trends in Scopus Data Base from 2013 to 2022
Authors: Nasir  , Bancong Hartono , Sukmawati  , Hambali Uyunnasirah
Published: June 2023

This study aims to find out the development of the publication of scientific articles about the TPACK (Technological Pedagogic Content Knowledge) Model. The research method used was a literature review using a bibliometric analysis approach that started by searching the TPACK model keywords in the Scopus journal database from 2013 to 2022. The study results revealed that within a period of 10 years, from 2013 to 2022, there were 528 publications of the TPACK model published in Scopus-indexed journals. Meanwhile, the United States is the country that contributes the most to the number of published articles. The Journal of Physics Conference is listed as the journal that has contributed the most to the dissemination of the Scopus-indexed TPACK model articles. To get more comprehensive results, further research is not only limited to Scopus-indexed journals but also includes the integration of the TPACK component in the learning to be studied.
Developing of Drama Teaching Materials with Benime Assisted for High School Students
Authors: Hutagalung Trisnawati , Girsang Dwi Friska Br. , Paino Novhira Putri
Published: June 2023

This research and development is to find out the product development process and feasibility, as well as to find out the effectiveness of the drama material development product using the Benime application for class XI students at SMA Negeri 1 Hamparan Perak. The process of developing drama material uses the Benime application in the form of audiovisual teaching materials using the stages of the R&D method by Borg and Gall with 8 research stages covering 1) potential and problems, 2) data collection, 3) product design, 4) design validation, 5) design revision, 6) small-scale trials, 7) product revisions, and 8) mass production. From the validation results obtained a score calculation from material experts of 82% very good "and media experts of 97% "very good". The results of the validation assessment of product feasibility have very good quality to use. one group pretest-posttest design 20 multiple-choice test questions. Data analysis used the Normalized Gain Test. The results showed that the total pretest score of all students was 1760 and the total posttest score of all students was 2485. The results were processed using the formula N-Gain and achieved a value of 0.58 with the interpretation of "Medium" this result there is a significant increase in student achievement by using Benime-based teaching materials in class XI students.
Online Learning Innovations in School: Case Study on Subject Teacher Conference of Junior High School Pancasila and Civic Education in Surabaya City
Authors: Harmanto  , Jatiningsih Oksiana , Listyaningsih  , Habinah Siti
Published: June 2023

This research aims to discover how the Pancasila and civic education learning practices at junior high schools in Surabaya during the COVID-19 pandemic. The method this research uses is a quantitative approach with a survey design. The findings from this research are teachers and students are not ready for WFH and LFH. So, teachers use various channels in learning. For example, WhatsApp Group, Zoom, Google Classroom, and others. From this research, conclusions can be drawn, including (1) With the pandemic conditions requiring teachers to be able to adapt, from respondents who felt 13.5% less capable before the pandemic in mastering online learning, teachers were finally able to adjust supportive learning technology; (2) Mastery of teachers in online learning before the pandemic period resulted in very capably 7.9%, capable 78.7%, underprivileged 13.5%, unable 0%. The additional cost of internet access during online learning is between IDR 25,000 to IDR 100,000/month. This research novelties are tended to discuss the teachers’ readiness in Junior High School to Pancasila and civic education limited to Surabaya city.
Students’ Learning Trajectory in Solving Fraction Problems: Cases of Boy and Girl Students in Junior High School
Authors: Rizal Muh , Siswono Tatag Yuli Eko , Nurdin  , Bitara Tria
Published: June 2023

This study aims to describe the learning trajectories of male and female students in solving fraction problems. The research subjects consisted of a male student and a female student who had the same mathematical ability. Learning trajectory data for both subjects were taken through fractional problem solving tests and in-depth interviews. Observations focused on the four stages of problem solving strategies, namely understand the problem, divide a plan, carry out the plan, and look back. Data analysis begins with examining all data, reducing data, grouping data, categorizing, coding, and finally checking data through time triangulation. The results of the study show that in understanding the problem, boys identify goals and information to solve the problem to state its completeness, and girls identify information to solve the problem to state its completeness. In making plans, girls complete in detail and involve many concepts, while boys only have one concept, so girls' learning trajectories are longer. While carrying out the plan, the two solve problems according to the plan. Looking back, girls used more than one method alternative while boys only used one alternative.
MEDENİYETİN BULUŞTUĞU YERDEN: İSMET YEDİKARDEŞ VE MARDİN TEMALI RESİMLERİ
Authors: YERSEL Kübra
Published: June 2023

Çok yönlü sanatçı kimliğine sahip İsmet Yedikardeş, ressam, heykel ustası, seramik ustası ve deri eserler ustasıdır. Sanatçının hayatı irdelendiğinde bazı dönemlerinde birçok farklı iş kolunda çalışmış olduğu görülmektedir. Farklı iş kollarında bulunduğu dönemlerde Yedikardeş, sanat ile olan bağını koparmamıştır. Tam aksine Yedikardeş’in söz konusu dönemlerde sanatla kuvvetli bir bağ içerisinde olduğu anlaşılmaktadır. Türk resim sanatı açısından önem taşıyan sanatçı ve icra ettiği sanat incelenmeye değerdir. Çeşitli sanat dallarına ilgi ve ustalığı olan Yedikardeş, resim dalında iki önemli seriye sahiptir. Bu serilerin ilki ‘Mardin Temalı Resimler’ iken ikinci önemli seri ‘Sultanlar Serisi’ olarak karşımıza çıkmaktadır. Yedikardeş’in doğduğu ve büyüdüğü şehir Mardin, sahip olduğu yapılarıyla, değerleriyle sanatçının ilk resim sergisine konu olmaktadır. Bu çalışma, İsmet Yedikardeş’in hayatına kısaca değinmektedir. Öte yandan sanatçının bakış açısı da göz önünde bulundurularak ‘Mardin temalı resimler’ serisi, incelenmektedir. Mardinli olan Yedikardeş kendi değimiyle bu resimleri ile Mardin’e olan vefa borcunu ödemek istemektedir. Sanatçının, Mardin’in tahrip olmamış tarihi yapılarını ve güzelliğini tablolarına yansıtmayı amaçladığı görülmektedir. Yedikardeş’in hayatı ve Mardin temalı resimleri birbirinden bağımsız olarak düşünülmediğinden bütün olarak incelenmesi mümkündür. Çalışmada, sanatçının bazı eserlerinde verilmek istenen mesajlara dikkat çekilmeye çalışılmış ve tabloları kompozisyon, renk düzeni ve ikonografik bakımdan irdelenmiştir.
FSA Response to Public Body Reviews 2022-23
Authors:   Food Standards Agency, Gladstone Nat , Mooney Kathleen , Pierce Julie
Published: June 2023

The FSA’s Scientific Advisory Committees (SACs) are non-statutory and advisory non-departmental public bodies (ANDPBs) or Departmental Expert Committees (DECs) which are subject to review under the Cabinet Office’s ‘Guidance for the Review of Public Bodies’. In August 2022, the FSA set out the intention to review all 8 SACs per the guidelines, including an independent review of the Science Council (SC) and Advisory Committee for Social Sciences (ACSS). The FSA has completed an internal review of three of its SACs, and one review encompassing all three Joint Expert Groups (JEGs). The FSA commissioned external experts to undertake the independent review and the report and recommendations were submitted at the end of March 2023. The purpose of these reviews is to provide assurance to the FSA, and its stakeholders, that the SACs and JEGs roles and purposes are appropriate in addressing the future needs of the FSA, consumers and wider government, and that the bodies are operating effectively and efficiently. The SC and ACSS were the only two SACs submitted to Independent Review due to this being the first review cycle since they were commissioned in 2017.
Electronic Auction Fraud: An Insight into the Green Snake in Green Grass
Authors: Ashindoitiang  , Atemgweye Emmanuel , Ashishie  , Undiukeye Denis
Published: June 2023

The emergence and commercialization of the internet in the mid-1990s have revolutionized everything man hitherto does manually. Man’s quest to reduce human drudgery became exerting, and his wish that he could wake one day and get everything (including his sleep) done with the help of computers intriguing. This quest is as a result of the internet. In the world of e-commerce, since the formal launch of the internet in 1995, auctioneering became the first-child driven from the comfort of man via the use of computers connected together in a network (internet). Before the birth of e-shopping, dozens of eauction systems were developed and launched in 1995, including on sale (the first ever e-auction site), Auction Web, Esty, eBay, Yahoo, Amazon, etc. Auctioneering, derived from a Latin word augeo meaning "I increase" or "I augment” is driving the world of e-commerce till date. The benefits of electronic auctioneering cannot be over emphasized. Compared with e-shopping, e-auction allows buyers to bargain price that suit their taste and desire- the reason it is widely patronized. In spite of its numerous benefits, e-auction is on a daily basis facing fraudulent activities- which the researchers see as a green snake in green grass. The paper x-rays the benefits of e-auction at a glance, and takes an explicit/concise look at the various eauction frauds with simplicity of styles to help participants of e-auction understand how these fraudulent activities are perpetrated at each stage of the auctioneering process by fraudsters, and proffer measures that will help auction participants avoid being scammed or victimized.
Technological and Organoleptic Properties of Tomato (Lycopersicum esculentum) Produced on Soilless Substrates in Daloa (Haut Sassandra Region, Côte d'Ivoire)
Authors: Masse Diomande , Dago Andre Gnahe , Anderson Yeo Mohamed
Published: June 2023

The present study was carried out to characterise tomatoes produced on soilless substrates (cocoa, sawdust, cashew and rice husk) and to evaluate their impact on the technological and organoleptic characteristics of the tomato. A tomato crop was grown on these different substrates for three months. The tomato fruits from each substrate were subjected to chemical, technological and sensory analysis. The tomatoes of the different substrates have a high water content (94.83- 96.37%). Regarding the technological properties, the results recorded are for saccharin index (1.15%), saccharin coefficient (121.5%) and acidity coefficient (8.29%). The sensory study of the tomatoes reveals that the tasters perceived sensory differences between the tomatoes. Their overall perception of the tomatoes confirms their good acceptability. Also taste, colour, shape and consistency are important criteria of fresh tomatoes. At the end of this study, it was found that the C100 substrate presented the best physicomorphological parameters. Technologically, tomatoes from the RB5050 and B100 substrates can be recommended for industrial processing.
Performance Analysis of HP Heater with Comparison of the Number of Plugging Tubes in a 400 MW Coal-Fired Power Plant
Authors: Dwitama Akbar , Widayat  , Suryo Utomo M.S.K Tony , Sinaga Nazaruddin
Published: June 2023

Each of Units 1-4 SLA PGU has a capacity of 400 MW and seven feedwater heaters, namely three lowpressure feedwater heaters (LPH 1, 2, and 3), a deaerator, and three high-pressure feedwater heaters (HPH 5, 6, and 7). HPH 5 in Unit 2 has experienced 30% tube plugging, which is equivalent to 480 out of 1579 tubes. Plugging is expected to reduce the performance of HPH. If the plugging exceeds the maximum limit, the HPH needs to be retubed to restore equipment reliability. Furthermore, a comparison of the performance of HPH 5 was calculated with plugging variations of 0%, 22%, and 30% when the unit was at full load. The calculation results of terminal temperature difference (TTD), drain cooler approach (DCA), and log mean temperature difference (LMTD) showed an increase with the increase in plugging in HPH. Meanwhile, the calculation of heat rate and effectiveness showed a decrease caused by the additional plugging in the HPH. The largest heat transfer occurs in the condensing zone of the HPH, where the value is around 80% to 85% of the total heat transfer that occurs. All calculations of the relationship between performance parameters and HPH plugging variations have an R-square value of more than 0.67, indicating a strong relationship.
The Theoretical and Empirical Equivalence of Cronbach Alpha and Kuder-Richardson Formular-20 Reliability Coefficients
Authors: A Uyanah Denis , U. I Nsikhe
Published: June 2023

Reliability as one the psychometric properties of a research and measurement instrument is very desirable in research, under the classical test theory(CTT). One group of such reliability measures is that of internal consistency of a scale. Cronbach Alpha and KuderRichardson formula 20 are measures of internal consistencies. In many texts, authorities specify that Kuder-Richardson formula 20 should be applied when test items are dichotomously scored while Cronbach Alpha should be applied when test items are not scored dichotomously. These guide lines are religiously adhered to by both researchers and measurement practitioners. Both reliability estimates are recognized as valid measures of internal constituency. In research, an informed choice has to be made about which one to apply, particularly, when only one of them has to be applied. These guidelines are seen as conditions that validate the use of each of them. These specifications are erroneously interpreted. A score is a score whether dichotomous or not. This paper examined both the theoretical and empirical equivalence of these two estimates, for tests of the same length and for varying test lengths. To demonstrate the empirical equivalence of Cronbach Alpha and KR-20, 65 biology achievement tests of the same length (40 items), were administered on 65 samples of senior secondary two students, consisting of 60 students selected from 36 public secondary schools, in Calabar Education zone of Cross River State, Nigeria. Both the Cronbach Alpha and KR-20 were estimated for each test and for the 65 samples. Another test of 100 items adapted from the 2018 and 2019 WAEC-SSCE English Language objective test, was administered on a sample of 300 students. Both reliability measures were estimated for varied lengths of the test, by randomly removing five(5)items at a time. This resulted in 19 sub-tests. The resulting reliability coefficients were compared using the related sample t-test while repeated measures ANOVA was used to compare the reliability coefficients under the influence test length, measured in terms of number of items. The results showed that there is significant difference between Cronbach Alpha and KR-20(t=4.022, p=.000). The correlation between KR-20 and Cronbach alpha is positive and highly significant(r=.944& .999, p=.000). Test length has significant influence on the difference between KR-20 and Cronbach alpha reliability estimates (F=1372.074, p=.000). The implications of these results for tests developers and users are discussed.
VR-Based Visualization for Biological Networks
Authors: Hisham Ahmed , Mahmood Basim
Published: June 2023

The current revolution in technology forces most daily life systems to generate large-scale data. Understanding such data is not an easy task due to its size and complexity. Therefore, data visualization has played a key role in understanding data more clearly. Moreover, most of the available approaches for data visualization are considered traditional that deal with data in a 2D way. Furthermore, one of the most modern methods for data visualization is converting data into network models that include nodes and edges. This kind of visualization has been proven as an efficient method of analyzing large-scale data. On the other hand, with the advent of virtual reality technology and the metaverse concept, data can be visualized and analyzed in an interactive and 3D way. However, there is a lack in the literature providing enough information on how to generate such 3D models. This thesis comes to investigate the integration of virtual reality technology and complex networks, and how this integration can generate interactive data visualization models. To this end, a 3D VR-based interactive biological network model is designed and implemented to be adoptable by the metaverse platform. The biological network represents the gene-gene interactions of the sex chromosomes. The developed model enables analysts to dive into data and interact with its objects, which lead to a more professional, deep, and accurate analysis. The model proved its efficiency in terms of usability when tested by experts.