bluuebunny/crossref_metadata_2025 huggingface dataset:
Improved Large-Scale Ocean Wave Dynamics Remote Monitoring Based on Big Data Analytics and Reanalyzed Remote Sensing
Authors: Adhikary Subhrangshu , Banerjee Saikat
Published: March 2023

Oceans and large water bodies have the potential to generate a large amount of green and renewable energy by harvesting the ocean surface properties like wind waves and tidal waves using Wave Energy Converter (WEC) devices. Although the oceans have this potential, very little ocean energy is harvested because of improper planning and implementation challenges. Besides this, monitoring ocean waves is of immense importance as several ocean-related calamities could be prevented. Also, the ocean serves as the maritime transportation route. Therefore, a need exists for remote and continuous monitoring of ocean waves and preparing strategies for different situations. Remote sensing technology could be utilized for a large scale low-cost opportunity for monitoring entire ocean bodies and extracting several important ocean surface features like wave height, wave time period, and drift velocities that can be used to estimate the ideal locations for power generation and find locations for turbulent waters so that maritime transportation hazards could be prevented. To process this large volume of data, Big Data Analytics techniques have been used to distribute the workload to worker nodes, facilitating a fast calculation of the reanalyzed remote sensing data. The experiment was conducted on Indian Coastline. The findings from the experiment show that a total of 1.86 GWh energy can be harvested from the ocean waves of the Indian Coastline, and locations of turbulent waters can be predicted in real-time to optimize maritime transportation routes.
Research on the Law of Stress of Polychlorinated Naphthalenes (PCNs) on the Physiological Ecology of Bluegrass (Poa annua L.)
Authors: Laiyi Chen , Yundi Song , Yue Li , Lei Jiang , Yi Wang , Song Wang , Wei Hou
Published: March 2023

This paper takes Poa annua L. as the research object and studies the law of physiological and ecological stress of 1-Chloronaphthalene (CN-1) and Octachloronaphthalene (CN-75) by using various physiological and biochemical indexes of Poa annua L. cultivated with soil under the stress of CN-1 and CN-75 of different concentrations. According to the research, the chlorophyll a and b first increase and then decrease with the increase of the concentration of CN-1, and continue to decrease with the increase of CN-75; Soluble sugar and soluble protein in plants decrease first and then increase with the increase of CN-1, and continue to decrease with the increase of CN-75; MDA in plants increases first and then decreases with the increase of the concentration of CN-1 and CN-75. The proline content in plants also increases first and then decreases with the increase of concentration of CN-1 and CN-75. Based on the research, it can be seen that the tolerance of the plant to CN-75 is not good as to CN-1.
Design and Development of Smart Irrigation System Using Internet of Things (IoT) - A Case Study
Authors: Kumar G. Sasi , Nagaraju G. , Rohith D. , Vasudevarao A.
Published: March 2023

With India’s population growing at a rapid pace, traditional agriculture will have a tough time meeting future food demands. Water availability and conservation are major concerns for farmers. This paper aims to discuss the aspects related to designing and fabricating an automatic irrigation system using the Internet of Things (IoT) which will save the farmer’s time and money significantly. Human intervention in fields will be reduced. Changes in soil moisture are detected by soil moisture sensors and irrigation is automated using IoT. The proposed system is most economical for underdeveloped places because it is very cost-effective. Based on the soil moisture content, the sensor detects and sends signals to the node MCU, which activates the motor. When the plants receive enough water, the motor automatically shuts off. The user will be alerted about the soil’s moisture content through his mobile phone. The proposed smart irrigation system is implemented at our campus which conserves energy and water.
High-order masking of NTRU
Authors: Coron Jean-Sébastien , Gérard François , Trannoy Matthias , Zeitoun Rina
Published: March 2023

The main protection against side-channel attacks consists in computing every function with multiple shares via the masking countermeasure. While the masking countermeasure was originally developed for securing block-ciphers such as AES, the protection of lattice-based cryptosystems is often more challenging, because of the diversity of the underlying algorithms. In this paper, we introduce new gadgets for the high-order masking of the NTRU cryptosystem, with security proofs in the classical ISW probing model. We then describe the first fully masked implementation of the NTRU Key Encapsulation Mechanism submitted to NIST, including the key generation. To assess the practicality of our countermeasures, we provide a concrete implementation on ARM Cortex-M3 architecture, and eventually a t-test leakage evaluation.
A Closer Look at the Chaotic Ring Oscillators based TRNG Design
Authors: Su Shuqin , Yang Bohan , Rožić Vladimir , Yang Mingyuan , Zhu Min , Wei Shaojun , Liu Leibo
Published: March 2023

TRNG is an essential component for security applications. A vulnerable TRNG could be exploited to facilitate potential attacks or be related to a reduced key space, and eventually results in a compromised cryptographic system. A digital FIRO-/GARO-based TRNG with high throughput and high entropy rate was introduced by Jovan Dj. Golic (TC’06). However, the fact that periodic oscillation is a main failure of FIRO-/GARO-based TRNGs is noticed in the paper (Markus Dichtl, ePrint’15). We verify this problem and estimate the consequential entropy loss using Lyapunov exponents and the test suite of the NIST SP 800-90B standard. To address the problem of periodic oscillations, we propose several implementation guidelines based on a gate-level model, a design methodology to build a reliable GARO-based TRNG, and an online test to improve the robustness of FIRO-/GARO-based TRNGs. The gate-level implementation guidelines illustrate the causes of periodic oscillations, which are verified by actual implementation and bifurcation diagram. Based on the design methodology, a suitable feedback polynomial can be selected by evaluating the feedback polynomials. The analysis and understanding of periodic oscillation and FIRO-/GARO-based TRNGs are deepened by delay adjustment. A TRNG with the selected feedback polynomial may occasionally enter periodic oscillations, due to active attacks and the delay inconstancy of implementations. This inconstancy might be caused by self-heating, temperature and voltage fluctuation, and the process variation among different silicon chips. Thus, an online test module, as one indispensable component of TRNGs, is proposed to detect periodic oscillations. The detected periodic oscillation can be eliminated by adjusting feedback polynomial or delays to improve the robustness. The online test module is composed of a lightweight and responsive detector with a high detection rate, outperforming the existing detector design and statistical tests. The areas, power consumptions and frequencies are evaluated based on the ASIC implementations of a GARO, the sampling circuit and the online test module. The gate-level implementation guidelines promote the future establishment of the stochastic model of FIRO-/GARO-based TRNGs with a deeper understanding.
Fiddling the Twiddle Constants - Fault Injection Analysis of the Number Theoretic Transform
Authors: Ravi Prasanna , Yang Bolin , Bhasin Shivam , Zhang Fan , Chattopadhyay Anupam
Published: March 2023

In this work, we present the first fault injection analysis of the Number Theoretic Transform (NTT). The NTT is an integral computation unit, widely used for polynomial multiplication in several structured lattice-based key encapsulation mechanisms (KEMs) and digital signature schemes. We identify a critical single fault vulnerability in the NTT, which severely reduces the entropy of its output. This in turn enables us to perform a wide-range of attacks applicable to lattice-based KEMs as well as signature schemes. In particular, we demonstrate novel key recovery and message recovery attacks targeting the key generation and encryption procedure of Kyber KEM. We also propose novel existential forgery attacks targeting deterministic and probabilistic signing procedure of Dilithium, followed by a novel verification bypass attack targeting its verification procedure. All proposed exploits are demonstrated with high success rate using electromagnetic fault injection on optimized implementations of Kyber and Dilithium, from the open-source pqm4 library on the ARM Cortex-M4 microcontroller. We also demonstrate that our proposed attacks are capable of bypassing concrete countermeasures against existing fault attacks on lattice-based KEMs and signature schemes. We believe our work motivates the need for more research towards development of countermeasures for the NTT against fault injection attacks.
Garbled Circuits from an SCA Perspective
Authors: Levi Itamar , Hazay Carmit
Published: March 2023

Garbling schemes, invented in the 80’s by Yao (FOCS’86), have been a versatile and fundamental tool in modern cryptography. A prominent application of garbled circuits is constant round secure two-party computation, which led to a long line of study of this object, where one of the most influential optimizations is Free-XOR (Kolesnikov and Schneider ICALP’08), introducing a global offset Δ for all garbled wire values where XOR gates are computed locally without garbling them. To date, garbling schemes were not studied per their side-channel attacks (SCA) security characteristics, even though SCA pose a significant security threat to cryptographic devices. In this research we, demonstrate that adversaries utilizing advanced SCA tools such as horizontal attacks, mixed with advanced hypothesis building and standard (vertical) SCA tools, can jeopardize garbling implementations.Our main observation is that garbling schemes utilizing a global secret Δ open a door to quite trivial side-channel attacks. We model our side-channel attacks on the garbler’s device and discuss the asymmetric setting where various computations are not performed on the evaluator side. This enables dangerous leakage extraction on the garbler and renders our attack impossible on the evaluator’s side.Theoretically, we first demonstrate on a simulated environment, that such attacks are quite devastating. Concretely, our attack is capable of extracting Δ when the circuit embeds only 8 input non-linear gates with fifth/first-order attack Success-Rates of 0.65/0.7. With as little as 3 such gates, our attack reduces the first-order Guessing Entropy of Δ from 128 to ∼ 48-bits. We further demonstrate our attack via an implementation and power measurements data over an STM 32-bit processor software implementing circuit garbling, and discuss their limitations and mitigation tactics on logical, protocol and implementation layers.
POSSIBLE TEMPORARY PARAMETERS IN THE CENTRALIZED STRUCTURE OF THE TWO LEVELS
Authors:   Konstantin Preslavsky University of Shumen, Faculty of Technical Sciences, Tsonev Ivan , Kazakov Stefan ,   Konstantin Preslavsky University of Shumen, Faculty of Technical Sciences
Published: March 2023

In this paper an algorithm for communication of communication nodes in LAN with star topology. Probability expressions for the correct sending of messages among the subscribers in the network and the mathematics expectation of the time for the finishing of one cycle from the structure are brought out.10.46687/jsar.v4i1.77
CHILDREN’S PERSONAL READINESS FOR SCHOOL ACTIVITIES
Authors:   KONSTANTIN PRESLAVSKI UNIVERSITY OF SHUMEN, SHUMEN 9712, 115, UNIVERSITETSKA STR., Vacheva Snezhana
Published: March 2023

The paper dwells on the model of children’s personal readiness for studying in school. A number of characteristic features regarding children’s willingness are also discussed in the paper: child’s interest in school activities; his/her readiness to become a student and occupy a new position in the society; children’s personal drive for taking part in school activities; adopting studying skills; a level of social communication; a number of personal characteristic features, etc.
MODELLING OF CENTRALIZED TWO-PHASE LOCKING WITH INTEGRATED MECHANISM OF TIMESTAMPS BY THE “WAIT – DIE” METHOD
Authors:   KONSTANTIN PRESLAVSKI UNIVERSITY OF SHUMEN, SHUMEN 9712, 115, UNIVERSITETSKA STR., Milev Aleksandar , Vasileva Svetlana ,   KONSTANTIN PRESLAVSKI UNIVERSITY OF SHUMEN, SHUMEN 9712, 115, UNIVERSITETSKA STR.
Published: March 2023

This paper presents an algorithm for two-phase locking (2PL) in which deadlocks of distributed transactions for distributed database management systems (DDBMS) are avoided. The method of timestamps is chosen for solving deadlocks and the centralized 2PL algorithm is implemented in DDBMS. The „wait - die” strategy of timestamps mechanism for deadlocks avoiding is presented in this paper. The simulation results of modeling “wait-die” algorithm are given by using GPSS World Personal Version for two and three elements length of distributed transaction.
USING THE SECURITY NETWORK SCANNER GFI LANGUARD TO DISCOVER AND IMPROVE THE VULNERABILITIES IN THE COMPUTER NETWORK SYSTEMS
Authors:   Konstantin Preslavsky University of Shumen, Faculty of Technical Sciences, Boyanov Petar
Published: March 2023

In this paper a comprehensive testing for computer network vulnerabilities is made. Thanks to the program product GFI LanGuard some critical flaws and vulnerabilities have been discovered and thereby this action improves the security mechanisms in the tested hosts. It is recommended that many cyber-security professionals and IT administrators to use GFI LanGuard in order to increase the computer and network security in their organizations.
SOME EXTERNAL FACTORS THAT INFLUENCE CONSUMER BEHAVIOUR FOR PURCHASING CIGARETTES ON THE BULGARIAN MARKET
Authors: Spasova Veselina , Zhelev Stefan ,   Konstantin Preslavsky University of Shumen, Faculty of Technical Sciences
Published: March 2023

The purpose of the present research paper is to examine and analyze what factors influence consumer buying behaviour for purchasing cigarettes on the Bulgarian Market. The study is limited to within the Bulgarian Tobacco Market. The factors were divided into two main categories: internal and external influences. The research focuses on the external factors as Packaging, Product availability and exposure, Social Class, Groups, Income and Occupation.
HOW SOME INTERNAL FACTORS INFLUENCE CONSUMER BEHAVIOUR FOR PURCHASING CIGARETTES ON THE BULGARIAN MARKET
Authors: Spasova Veselina , Zhelev Stefan ,   Konstantin Preslavsky University of Shumen, Faculty of Technical Sciences
Published: March 2023

The purpose of the present research paper is to examine and analyze what internal factors influ-ence consumer buying behaviour for purchasing cigarettes on the Bulgarian Market. The study is limited to within the Bulgarian Tobacco Market. The factors were divided into two main categories: internal and external influences. The research focuses on the internal factors as age, gender, perception, motivation, lifestyle, attitudes.
ENCODING THE INFORMATION IN A LOGISTICAL SYSTEM
Authors:   KONSTANTIN PRESLAVSKI UNIVERSITY OF SHUMEN, SHUMEN 9712, 115, UNIVERSITETSKA STR., Kodjeykov Rumen , Djankov Plamen ,   KONSTANTIN PRESLAVSKI UNIVERSITY OF SHUMEN, SHUMEN 9712, 115, UNIVERSITETSKA STR., Encheva Emiliq
Published: March 2023

Codification of information and its protection is a priority in the management of logistics systems. The structure of the Codification number reported revenues and expenditures of special purpose products for a certain period of time. The use of this approach in a number of member states of the European Union. Study aims to develop an identification system for logistics standardization document information reporting of special purpose products , and to provide a database for production, storage and consumption quantities stored in logistics bases . Investigates inter-branch relations relevant for decisions about incoming and outgoing material flows . Adoption of standard solutions for coding the database reflects not only on the technical level of production, but also on the consumption and exploitation.
ALTERNATIVE WEAREHOUSES IN LOGISTICS
Authors:   NATIONAL MILITARY UNIVERSITY “V. LEVSKI”, ARTILERY, AIR DEFENSE AND COMMUNICATION SYSTEMS FACULTY - SHUMEN , “K SKORPIL” STR №1, Bogdanov Andrey
Published: March 2023

The paper deals with the potential for meeting the requirements for proper storage in different firms and companies. It analyses the advantages of all kinds of storage, depending on the specific conditions. Different ways of compensating the disadvantages of certain storage are given. Different ways of cost reduction are suggested. Some of them include grouping the cargo units.
ANALYSIS OF THE MANAGEMENT SYSTEMS OF LOGISTICS WAREHOUSE OPERATIONS
Authors:   NATIONAL MILITARY UNIVERSITY “V. LEVSKI”, ARTILERY, AIR DEFENSE AND COMMUNICATION SYSTEMS FACULTY –SHUMEN , “K SKORPIL” STR №1, Bogdanov Andrey
Published: March 2023

The paper considers the application of ready – made integrated complex systems for logistic management of goods and information flows. It deals with the integration of the conceptual approach with the production and operational management. Thus the market situation analysis is done which helps proper decision making. Different structures of a computer based system for storage management are analyzed.
The Proportionality Principle as a Reviewing Standard of Constitutionality
Authors:   National Public Law Review, Kim Hyun Chul
Published: March 2023

The Prohibition of Excessive Restriction or the Proportionality Principle (hereafter as “the Proportionality”) in a broad sense refers to the basic principle or the limitation of legislative activities that the state should abide by in carrying out when it makes laws that restrict the citizens’ basic rights. In other words, laws that restrict the citizens’ basic rights must meet the qualifications of the Legitimate Law Object, the Adequate Mean, the Minimal Impairment, and the Balancing between personal interest and public interest (hereafter as “the Balancing”). The Korean Constitutional Court (hereafter as “the Court”) has so far tended to focus its arguments on the Minimal Impairment in applying the four sub-principles of the Proportionality: the Legitimate Law Object, the Adequate Mean, the Minimal Impairment, and the Balancing. However, the Proportionality is a sequential and step-by-step review structure, and ‘step-by-step review’ presupposes that each sub-principle has its own meaning. If so, the Court’s Balancing review that has been criticized as “an overdose of the Proportionality”, should now be changed. That is, the Minimal Impairment should be limited to the evaluation of “legislative alternatives”, and the degree of restriction on basic rights or the judgment of Endurance Possibility should be moved to the Balancing to make use of the merits of the step-by-step review. These changes also bring the Court on par with the trends of advanced foreign constitutional courts such as Germany (The German Constitutional Court) and Canda (the Canadian Federal Supreme Court). Moreover, by doing so, the Court can correctly establish the criteria of the Proportionality as a reviewing standard of constitutionality.
Public law review on resident participation under the 2021 revised “Local Autonomy Act”
Authors:   National Public Law Review, Kang Joo-Young
Published: March 2023

The 2021 Local Autonomy Act has been revised and implemented by strengthening decentralized factors such as diversity in institutional composition. In addition, the key elements and concepts of local autonomy, the elements of resident autonomy, were also systematically strengthened. Of course, it is regrettable that the “Residents' Self-Governing Council”, which was expected to be regulated by the final amendment, was not reflected in legislation, but it is recognized that the elements of decentralization and resident autonomy have been strengthened overall compared to the old law. Specifically, matters related to residents' participation in autonomous administration were included in the purpose regulations (Article 1), residents' participation in the policy-making and execution process was stipulated as rights (17)), residents' right to enact, revise, and abolish municipal ordinances (Article 19), and residents' rulemaking (Article 20). However, since the expression of strengthening resident sovereignty has recently emerged in discussions on strengthening resident autonomy, it is questionable whether it is appropriate to uncritically accept it in legal and institutional discourse. There is no need to refute the degree to which it is used as an emphasized expression of resident autonomy at the slogan level, but the strengthening of resident sovereignty elements in legal and institutional discussions is considered a different level, so separate discussions are needed in the future. In addition, the participation of residents is considered necessary, and this is understood as a factor that strengthens democratic legitimacy in autonomous administration. However, whether the participation of residents only needs to be secured quantitatively and mechanically is understood as a separate issue.
A Study on Energy Development and Policies in Jeollanam-do
Authors:   National Public Law Review, Lee Soonja
Published: March 2023

The world adopted the Paris Agreement, in which all countries agreed to share the responsibility for responding to and adapting to climate change. However, according to the Paris Agreement, the responsibility is differentially burdened by each country in consideration of its capabilities. In this regard, Korea should also share appropriate responsibilities. Therefore, I reviewed the energy-related plans and policies of the previous and current governments in Korea. Then, it was examined whether Jeollanam-do, which has sufficient conditions for renewable energy production, systematically responded to the climate crisis, while revising laws and regulations that matched regional characteristics. Jeollanam-do is the best place for the renewable energy industry because it has superior renewable energy resources compared to other local governments, such as solar power generation with abundant sunshine, offshore wind power generation with excellent wind resources off the coast of Shinan, and tidal power generation due to strong currents in Jindo. However, due to the acceptability of local residents, renewable energy generation projects are not being carried out smoothly. Therefore, by reviewing renewable energy-related ordinances in other regions, various directions for improving renewable energy-related ordinances in Jeollanam-do were presented. In particular, in relation to the direction of amendment of the ordinance, emphasis was placed on profit sharing and ensuring procedural participation of local residents to increase the acceptance of local residents. In addition, a revision of the law was proposed to guarantee the right to participate in the actual procedural process.
Review on Legal Mechanism to Solve Environmental Problems Arising from Landfills in India: Focusing on the Application of Statutory Nuisance
Authors:   National Public Law Review, Choung Yonghwan , Shukla Siddharth
Published: March 2023

This paper considers the environmental disputes caused by the landfills located in Delhi, India and reviews the Indian Waste-to-Energy policy to resolve the environmental conflicts. India has sound waste management rules and regulations but they are not implemented effectively. Even though the Indian government has applied current Indian environmental policies, such as municipal solid waste rule, it could not properly resolve these disputes based on a lack of administrative will-power. India being the world’s second most populous country generates an enormous amount of garbage. While the waste generated is not managed effectively, it might lead to deterioration of human health and the environment. The waste is usually dumped in Landfills. However, these landfills are poorly managed, and the waste keeps overflowing. Numerous Landfills have led to fire around the locality, and they are a source of nuisance to the neighbourhood. One of the possible solutions could be using waste to energy plants. Waste-to-energy plants use state of the art technology to incinerate the garbage to produce energy. Waste could be used to produce clean energy and could curb pollution. However, the application of thermal technology for waste-to-energy in India is not well controlled because the cost of using crude oil is much cheaper than the expense of applying waste-to-energy technology in India. One of the possible remedies could be under statutory nuisance which would compel the regulatory authorities to protect the human health and the environment.
SREDSTVA PARAJEZIČKE EKSPRESIVNOSTI U PISANOM DISKURSU: ANALIZA PRIMERA U „DEJAME QUE TE CUENTE“… HORHEA BUKAJA
Authors:   University of Kragujevac, Faculty of Filology and Arts, Zečević Krneta Gorana
Published: March 2023

/ En este trabajo se analiza la presencia y modos de manifestación del pa- ralenguaje en Déjame que te cuente... del escritor y psiquiatra argentino Jorge Bucay. Tres son las razones que nos llevaron a elegir este libro: el título del libro lleva puntos suspensivos que llegan a ser uno de los pilares de la expresividad artística; luego, es una obra llena de diálogos que refleja en papel la estructura típica del discurso oral; y la tercera razón, el autor, además de ser escritor, es un médico psiquiatra y psico- terapeuta, lo que implica una mayor capacidad de matizar la narración con medios no verbales. Bucay utiliza todos los recursos disponibles para diversificar su expresión y hacer reflexionar al lector. Esta intención del narrador se ve ejemplificada a través de mu- chos elementos paralingüísticos, comunicativamente relevantes. En nuestro análisis partimos de las clasificacones elaboradas por Poyatos (1998, 2002a, 2002б), Antúnez Pérez (2005, 2006) y Panić Cerovski (2017), pero hacemos notar que algunos parámet- ros del análisis deben ser reconsiderados de acuerdo con el canal comunicativo al que pertenecen. Establecida la diferencia entre el tipo visual y el auditivo de los medios de expresividad paralingüística, los resultados del análisis sacan a luz diferentes elementos de tipo visual, entre los cuales destacan los elementos tipográficos y la organización espacial del texto. Los signos de puntuación, interjecciones y vocalizaciones representan las transcripciones de los parámetros auditivos, conque se consideran como elementos paralingüísticos de tipo auditivo. El silencio como ausencia del sonido se manifiesta en la obra tanto al nivel paralingüístico (puntos suspensivos) como al nivel lingüístico (el sustantivo silencio). Se toman en consideración también las descripciones ver- bales que, pese a su realización verbal en la obra, tienen una función primariamente paralingüística gracias a la relación que se establece entre el signo y lo designado.
YOUNG PUPILS’ ABILITY TO SOLVE PERSPECTIVE TAKING PROBLEMS
Authors:   University of Belgrade, Teacher Education Faculty, Vorkapić Marija M. , Milošević Mila S. , Đokić Olivera J.
Published: March 2023

Spatial ability is an integral part of mathematics teaching and learning, but not every component of this ability has received enough research attention. In this paper, we focus on young pupils’ ability to solve two types of imaginary perspective-taking (IPT) problems given in the form of a test (the paper‒pencil test). The results show a difference in solving imaginary perspective-taking problems between preschoolers and second-grade pupils who took part in this research. Still, even the second-grade pupils have not fully developed this special spatial abil- ity because they are slightly less successful in appearance IPT2 tasks than in visibility IPT1 tasks. We noticed individual differences in both age groups. In addition, the preschool sample from Serbia is equally successful as the children from the Netherlands and significantly better than the children from the Cyprus sample of the same age reported by Van den Heuvel-Panhuizen, Elia and Robitzsch (2015). The general conclusion and educational implication are that imaginary perspective-taking ability should be nurtured more in early school years.
ACHIEVEMENTS OF YOUNGER PRIMARY SCHOOL STUDENTS IN MATHEMATICS COMPETITIONS DURING IHE COVID-19 PANDEMIC
Authors:   University of Kragujevac, Faculty of Education in Jagodina, Vulović Nenad R. , Mihajlović Aleksandra M. ,   University of Kragujevac, Faculty of Education in Jagodina, Milikić Milan P. ,   University of Kragujevac, Faculty of Education in Jagodina
Published: March 2023

Mathematics competitions represent a very important segment of educational support to gifted students and play a significant role in identifying, motivating and working with those mathematically gifted. The COVID-19 pandemic had a strong impact on all seg- ments of the educational process, including the implementation of mathematics classes, regular and additional, as well as the organization and implementation of mathematics competitions. In this paper we wanted to examine whether the changed conditions in which regular and ad- ditional mathematics classes were implemented had an impact on the achievement of the best- performing math students. The aim of the research is to examine the adoption of advanced level mathematical content that students should have acquired at school in the conditions of the COVID-19 pandemic. The research sample consisted of 4,064 third-grade students (school year 2020/2021) and 3,824 fourth-grade students (school year 2021/2022). The research results indicate that students who should be able to solve advanced level tasks show insufficient practice in performing the four basic calculation operations, as well as insufficient adoption of different methods of solving advanced level tasks. By looking at the achievements of the same generation of students through two consecutive competition cycles, it can be seen that insufficiently adopted concepts in the third grade during the first year of the pandemic remained unexplained in the transition to a higher grade where they represent a problem for further advancement of students.
PEDAGOGICAL TRAINING FROM THE PERSPECTIVE OF STUDENTS – FUTURE TEACHERS AT PALACKÝ UNIVERSITY OLOMOUC
Authors:   Palacký University in Olomouc, Faculty of Science, Czech Republic, Slezáková Jana
Published: March 2023

This paper discusses the issue of perception and evaluation of the first continu- ous pedagogical training from the perspective of students as future science and mathematics teachers. In the introduction, attention is paid to the definition of pedagogical training from the perspective of selected authors. The following is an overview and a description of the skills of future teachers, which are key during the first continuous pedagogical training. Subsequently, the following section presents the organizational structure of the first training which is applied at the Faculty of Science at Palacký University Olomouc, Czech Republic. Further, for the purposes of the empirical research, the author drew up a survey with questions addressed to future science and mathematics teachers. Based on that, the data were analysed and transformed into results. The main intention of the survey was to investigate how the students appraise their preparation for their practical training and the training itself. Pedagogical training shows the need for the development of digital competencies. Lastly, the final part of the paper discusses the shortcomings of their practical training, which are perceived by undergraduates as future teachers. Additionally, it presents suggestions and recommendations for how to effectively improve the organizational system of these practi- cal teacher trainings.
ALGEBRAIC STRUCTURES BY CREATING MIND MAPS WITH STUDENTS GIFTED IN MATHEMATICS
Authors:   University of Kragujevac, Faculty of Science, Milenković Aleksandar
Published: March 2023

Working with mathematically gifted students is the subject of many studies. In the literature, one can find various examples of the positive impact of the use of mind maps on learning by understanding and connecting concepts in appropriate schemes, but the impact of creating mind maps on the achievements of students gifted in mathematics has not been sufficiently researched. Having that in mind and that algebraic structures represent a teaching topic in which it is necessary for students to have adequate theoretical knowledge about these structures and relations between them, this method was implemented in order for students to connect the proper concepts in a scheme. For that purpose, (two) mathematics classes of sys- tematization are conducted for the teaching topic on Algebraic structures in order for students to create two mind maps each (one for algebraic structures with one and with two binary operations and another for homomorphism). The effects of this approach to the systematization classes were examined by analyzing the students’ success achieved in two fifteen-minute tests (before and after the systematization classes) where they had to mark the correct statements (precisely formulated algebraic structures and homomorphisms). The results obtained by statistical analysis indicate that the students achieved statistically significantly better results in the test held after the systematization classes. In other words, the creation of mind maps by students gifted in mathematics had a positive effect on systematization of knowledge about Algebraic structures and on students’ achievement in mathematics (specifically Linear Algebra and Analytical Geometry). This result implies that teachers who work with students gifted in mathematics should seriously consider organizing mathematics classes where students will systematize and deepen their theoretical knowledge by creating mind maps.
FROM PLANT MORPHOLOGY TO RHYTHMIC PATTERNS (OF MUSIC): A STEAM APPROACH TO STUDYING RELATIONS IN MATHEMATICS
Authors:   University of Kragujevac, Faculty of Education in Jagodina, Milić Ivana M. , Mladenović Jelena M.
Published: March 2023

In this paper, innovative procedures in working with students, applying the STEAM approach, and the possibilities of improving the quality of university education are reviewed from a theoretical perspective. The modernization of university teaching implies following global trends, with the primary goal being the formation of versatile, competent students who will be able to respond to the modern demands of society and participate in the exchange of information related to current scientific achievements while constantly strengthening their own capacities. During university education, it is necessary for students to develop their potential and competencies, have positive attitudes towards their future in the educational profession, and understand the importance of their teacher role when choosing an approach to educational work in kindergarten. The competence of the preschool teacher, as well as students, is reflected in the implementation of activities, activation of children’s potential, enrichment of children’s experiences, encouragement of creativity, and close exposure to phenomena and processes in the fields of science and art. Therefore, it is important to familiarize students with innovative approaches to educational work in kindergarten because they will be able to transform and properly apply the acquired knowledge later in their future work in order to ensure the holistic development of children.
Role of CT in Early Diagnosis of Small Bowel Lymphoma in a Patient with Presumptive Diagnosis of Adhesive Bowel Obstruction- A Case Report
Authors:   Senior Resident, Department of Surgery, Mahatma Gandhi Institute of Medical sciences, Wardha., Satwick Bhavana , Bochare Gaurav ,   Senior Resident, Department of Surgery, Mahatma Gandhi Institute of Medical sciences, Wardha., Chate Umakant ,   Junior Resident, Department of Surgery, Mahatma Gandhi Institute of medical sciences, Wardha., Gupta Dilip ,   Professor and head, Department of Surgery, Mahatma Gandhi Institute of Medical sciences, Wardha
Published: March 2023

Small bowel obstruction is one of the commonly encountered disease state by surgeons all over the world and postoperative adhesions remain the most common cause of small bowel obstruction till date. Other rarer causes of small bowel obstruction include small bowel malignancies like lymphomas and adenocarcinoma, foreign bodies, intussusception, volvulus, hernias etc. Even though adhesions are the commonest cause behind bowel obstruction, these patients are also equally susceptible to be diagnosed with other rarer causes of small bowel obstruction. In such situations, a CT scan can aid in early diagnosis of these rarer causes and prevent unnecessary delays in surgical management. Here we report a case where a presumptive diagnosis of adhesive obstruction was made but a CT scan early in the course of treatment helped us diagnose small bowel malignancy immediately, to terminate conservative management and proceed with immediate laparotomy.
Applying Taylor Rule in a Heterogeneous Currency Union: Case of UMAC
Authors:   ., Hamed DIAM A ABOUEM
Published: March 2023

Our objective is to show that the Taylor rule is the monetary policy practice of BEAC its effectiveness is limited due to the structural and cultural heterogeneity of the currency union. In this light, we identify the reaction function of BEAC show that it includes additional variables namly, the interest rate and inflation differential with the Euro zone, as well as the currency reserve ratio that must cover at least 20% monetary issue. Given the objectives and instruments used and the reaction function built, we estimate a forward-looking Taylor rule using the GMM, similar to the one proposed by Clarida et al. (2000) and find that the interest rate setting of BEAC could be captured using a Taylor rule. From our estimations using the we actually find that BEAC’s monetary policy or more precisely its interest rate setting can be effectively captured using a modified Taylor rule taking into consideration the specificities of the monetary union and external constraint despite the heterogeneous nature of the union. As seen from the results obtained we can realize that the Central Bank mainly focuses on the fight against inflation and mainly strives at maintaining internal stability in the sub region. This fight can be deemed successful given the low inflation results that are observed in our period of study, even though it can be mitigated with the influence of the region of anchor (the Euro zone) in this stability
Policy Law Enforcement of Crime Sexual Violence against Children Based on Law Number 11 of 2022
Authors:   Faculty of Law, University of Lampung, Indonesia, Fathonah Rini , Kusworo Daffa Ladro ,   Faculty of Law, University of Lampung, Indonesia, Khaliza Fauzi Maghfira Nur ,   Faculty of Law, University of Lampung, Indonesia
Published: March 2023

The presence of Law Number 11 of 2022 concerning Crimes Sexual Violence seeks to provide legal umbrella for existing problems, as well as manifestation Child Protection which has not been accommodated, especially in the criminal burden perpetrators of sexual crimes and the stages of efforts to recover victims due to sexual crimes they have experienced. It can be said that TPKS Law is synchronization of Child Protection Law by emphasizing sexual violence against children, through structuring stages of recovery given by children as well as in order to improve judicial process as special treatment needed by children. This research uses normative legal research methods through the approach of applicable laws and regulations and literature studies. The statutory regulation approach originates from primary data in form Law Number 35 of 2014 concerning Child Protection and Law Number 11 of 2022 concerning Sexual Crime Crimes and literature studies. The results this study will show that presence of TPKS Law has had a positive impact and new legal protection efforts for vulnerable people, especially children as victims sexual crimes.
Deepening Analysis on Factors Related to the Mothers’ Practices and Acute Respiratory Infection Disease in Children Under 5 Years Old in The Rural Area, Viet Nam
Authors:   Midwifery and Nursing Department, Nam Dinh University of Nursing, Nam Dinh city, Nam Dinh 420000, Vietnam, Thi Hoa Do
Published: March 2023

Objective: The study aimed at identify some factors related to practices of mothers and acute respiratory infection disease in children under 5 years old in rural area, Vietnam. Material and methods: A cross-sectional study was conducted on among 194 mothers and their children under 5 years old in the rural area of Vu Ban District, Nam Dinh province, Vietnam from October 2020 to June 2021. The questionnaire includes 16 items and 3 technique checklists was used which was comprised of sociodemographic factors and information about practices of mothers in prevention and caring for children with acute respiratory infection. The questionnaire and diagnosis of acute respiratory infection (ARI) was based on the revised WHO guidelines. Then the data was collected, analyzed and entered into the SPSS 25.0 program. Using Chi-Square statistics and the odds ratio OR with 95% CI confidence to analyze and determine the relation factors between the two variables in the study. Results: Unsatisfactory practices of mothers in prevention and caring for children with ARI accounted for high percentage (61.9%). In addition, the incidence of ARI in children under 5 years old was 43.8% (85/194 children). There were some relationships between the mothers’ education level, receiving counseling information, number of children, the incidence of ARI in children and mothers' practices about ARI. The difference was statistically significant with p <0.05. There were some relationships between the mothers’ education level, receiving counseling information about ARI, mothers’ practical skills in caring and the incidence of ARI in their children. The difference was statistically significant with p < 0.01. Conclusions: The practices of mothers in prevention and caring for their children with ARI were low. The study revealed that some factors related to practices of mothers and ARI disease in children under 5 years old.
Epidemiology, Sociodemographic Characteristics, Symptoms Assessment and Outcome of COVID-19 Epidemic among Residents of Niger State, Nigeria (March 2020 – March 2021)
Authors:   Heart to Heart ART Clinic, General Hospital Minna, Nigeria., Bisallah Chindo Ibrahim , Onyilo Michael Ochigbo ,   Heart to Heart ART Clinic, General Hospital Minna, Nigeria., Mohammed Isah D ,   Department of Medicine, General Hospital, Minna, Egwu Oguh Collins ,   Department of subnational, Nigeria center for Disease Control and Prevention, Anyanwu Prince Obinna ,   ICAP in Nigeria Abuja, FCT, Nigeria, Adedokun Adetunji ,   ICAP in Nigeria Abuja, FCT, Nigeria, Adedokun Omolola ,   Standard Hospital and diagnostic Services, Off Muazu Mohammed road, Beside Old Secretariat, Minna, Nigeria, Sulaiman Bilkisu ,   School of health Technology, Minna, Nigeria, Ugwoke Uchenna Michael ,   Association for Reproductive and Family health, Lugbe, Federal Capital Territory, Abuja
Published: March 2023

Nigeria recorded the first case of COVID-19 infection on Feb 27, 2020. Thereafter, National response was imposed with different curtailing measures including travel bans, closure of schools, markets and limiting the number of persons that could congregate in a place. The objective of this study was to evaluate the epidemiological situation of COVID-19 in Niger state, Nigeria using the data collected during the outbreak, describing the sociodemographic characteristics and epidemiological behavior and clinical symptoms of those tested and confirmed COVID-19 cases. We conducted a state wide population based analysis of the epidemiology of COVID-19 using data reported from all the 25 Local Government Areas of the state from March 2020 to March 2021 for the first, second and third waves of the epidemic. We calculated the overall incidence, case fatality rate, association of sociodemographic variables and the outcome of COVID-19 cases, frequency of different symptoms and drew an epidemic curve. A total of 1128 cases and 20 deaths were included in the analysis with sex distribution of 63.9% males and 36.1% females. The overall incidence rate was 20 cases per 100,000 populations. Commonest symptoms were cough (62.5%), Fever (54.2%) and difficulty in breathing (42%). We found that age was an important determinant of death in COVID-19 cases and health care workers were significant contributors of morbidity and mortality. We recommend strengthening of the health care system especially emergency response, availability of intensive care services, improvement of laboratory services, community surveillance and contact tracing capacities to prevent and control future epidemics.
Hostile Abdomen, A Review of the Current Literature
Authors:   Hospital General de Zona #2 Dr Efrén Correa Magallanes del Instituto Mexicano del Seguro Social. Fresnillo, Zacatecas, México., Rivas Hector Adrián Salas , Pérez Alexis Molina ,   Hospital General de Zona con Medicina familiar #58 del Instituto Mexicano del Seguro Social. Tlalnepantla de Baz, México., Peña Gio Christian Guadalupe ,   Hospital General Regional #12 Benito Juárez del Instituto Mexicano del Seguro Social. Mérida, Yucatán, México., Cervantes Axel Fabián Vidales ,   Hospital General Regional #1 Vicente Guerrero del Instituto Mexicano del Seguro Social. Acapulco de Juárez, Guerrero, México., Morales Alexis Quetzalcóatl Vega ,   Hospital General Regional No. 180 del Instituto Mexicano del Seguro Social, Tlajomulco de Zúñiga, Jalisco, México.
Published: March 2023

The patient with a hostile abdomen is a challenge, where the abdominal cavity is open, with the edges retracted, healed and compacted into a single block of fibrous tissue that does not allow its adequate dissection or separation, carrying a high risk of injury to the intestinal loops. and appearance of concomitant fistulas. The term catastrophic abdomen was used for the first time in 1937 by Abell I, describing a dramatic post-surgical condition, involving the presence of intestinal leakage in an open abdomen with severe adhesions, having a high associated mortality.
Amyand's Hernia: Review of the Literature
Authors:   Hospital General Regional #1 Vicente Guerrero del Instituto Mexicano del Seguro Social. Acapulco de Juárez, Guerrero, México., Romero Arturo Rojas , Pineda Aldo González ,   Facultad de Medicina de la Universidad Nacional Autónoma de México. Ciudad de México, México., rojas Cindy Tatiana vanegas ,   Hospital General Dr. Manuel Gea González. Ciudad de México, México., Palomar Martín Obed Obregón ,   Hospital General de Zona 48 Instituto Mexicano del Seguro Social, Ciudad de México, México., Avendaño Ana Laura Esmeralda Muñoz ,   Hospital General de Zona 6 Tepeji Del Río, Instituto Mexicano del Seguro Social. Hidalgo, México.
Published: March 2023

Amyand's hernia is defined as the presence of the cecal appendix inside the sac of an inguinal hernia. The appendix can be normal, inflamed, perforated or gangrenous, but the first situation is the most frequent. The name "Amyand's hernia" is due to the English surgeon Claudius Amyand (1681-1740), who in 1735 performed the first appendectomy on an 11-year-old boy during surgery for an incarcerated inguinal hernia that contained the perforated cecal appendix in its inner.1,2 When the vermiform appendix is found inside a femoral hernia, it is called Garengeot's hernia, in recognition of René Jacques Croissant de Garengeot (1688-1759), a French surgeon who was the first to describe the presence of the vermiform appendix inside the femoral hernia sac from an indirect inguinal hernia in 1731; in this case, the appendix did not present inflammatory signs. Diagnosis is generally intraoperative, since being an infrequent pathology, without specific symptoms and requiring high diagnostic suspicion, preoperative diagnosis is usually exceptional.