bluuebunny/crossref_metadata_2025 huggingface dataset:
Validity and Reliability of Elasticity Multiple-Choice Items (EMCI) Using Rasch Model
Authors: Mardian Vivi , Samsudin Achmad , Utama Judhistira Aria , Suwarma Irma Rahma , Coştu Bayram
Published: June 2024

Assessment in the form of an instrument is very important to test for validity and reliability so that it can measure student learning outcomes. We implemented a measurement instrument designed to assess students' understanding of elasticity. The measurement instrument consisted of 15 items. The instrument was administered to students who were taking physics subjects in senior high school in their second year. In total, 74 students were taken from two classes in Padang, Indonesia. In this study, the students' performance was collected as quantitative data and evaluated using the Rasch model. The results showed that the data matched the Rasch model measurements. Moreover, female students answered 53% of the questions better than male students. Furthermore, the DIF plot shows that S8 is the most difficult problem, while S14 is the easiest. There are two gender bias questions, namely S12 and S14. Both questions were easily solved by female students. However, all questions can be used to measure students' abilities in elasticity and Hooke's law. This study seeks to make a contribution to the literature on EMCI evaluations by offering a case study for academics and researchers to use in assessing students' elasticity skills
Effect of photoperiod and chemical retardants on growth and flowering of pot mums (Dendranthema grandiflora Ramat)
Authors: Banday Nelofar , Lone A A , Khan F U , Nazki I T , Rather Z A , Samoon S A
Published: June 2024

Potted plants of chrysanthemum varieties namely Arun Kumar and Sweta Singar, were exposed to 8 h light and 16 h darkness and natural photoperiod, and spayed with maleic hydrazide (1000 and 2000 ppm), cycocel (1500 and 3000 ppm) and control (distilled water) in factorial complete block design with three replications. The results revealed that controlled photoperiod of 8 h light and 16 h darkness was found significantly superior over natural photoperiod with regard to minimum internodal length (2.85 cm), days to floral bud initiation (98.88), maximum flowering duration (23.14 days), flowers plant-1 (189.50), flower diameter (2.72 cm), fresh weight of flower (1.16 g) and vase life (14.86 days). Among growth retardants, maleic hydrazide (2000 ppm) significantly recorded minimum plant height, maximum branches plant-1 (18.85), flowering duration (25.25 days), flower diameter (2.95 cm), flowers per plant-1 (194.90) and weight of flower (1.20 g), while, maleic hydrazide (1000 ppm) recorded minimum internodal length (2.65 cm) and maximum vase life (18.00 days). The cv. Arun Kumar under controlled photoperiod recorded minimum internodal length (2.38 cm) and early floral bud initiation (91.04 days), however, maleic hydrazide (2000 ppm) recorded maximum flower diameter (4.05 cm), fresh weight of flower (1.53 g) and vase life (18.50 days). cv. Arun Kumar under controlled photoperiod treated with CCC-3000 ppm showed the best performance in recording the maximum number of flowers plants-1 (138.00) during first fortnight of flowering.
Gender analysis and empowerment of women and men in Cassava (Manihot esculenta) production in Kerala
Authors: Sheela Immanuel  , D. Jaganathan  , P. Prakash
Published: June 2024

Women’s participation is vitally important in agriculture so also in cultivation of tuber crops. In Kerala, cassava is cultivated mostly in homestead farming with active participation of the women. Gender analysis was conducted to map the profile characteristics and empowerment of men and women. Hundred respondents doing cassava cultivation were selected from Thiruvananthapuram and Pathanamthitta districts of Kerala. Majority (61.53%) of the women and men (68.57%) had medium level of participation in cassava cultivation. The overall empowerment index of men (0.86) was more than women (0.78). Employment generation and economic benefits in cassava cultivation for men and women were also assessed.
On the Issue of Violation of the Psychological and Emotional State of Students of Higher Educational Institutions, as Well as the Influence of Restorative Physical Culture on these Conditions
Authors:   Pacific National University, Vereshchagin Alexander M.
Published: June 2024

The scientific article addresses the problem of violation of the psychological and emotional state of students of higher educational institutions. A literature review was conducted to identify key factors influencing the personality of students in higher education. Stressful situations arising in student life are examined, and recommendations are proposed for developing comprehensive measures and support programs for students. This study highlights the importance and necessity of preventive work, training in stress management strategies and providing psychological support to persons exposed to the risks indicated in the article. Furthermore, the article presents research findings on the impact of short-term periodic physical training on the mental and emotional state of individuals. The work holds practical significance for higher education institutions and professionals in the fields of psychology and pedagogy.
Family and School as Significant Institutions for the Socialization of Younger Schoolchildren
Authors:   Penza State University, Lazarev Artem S.
Published: June 2024

The article actualizes the problem of ensuring the successful socialization of children of primary school age. The analysis of scientific psychological and pedagogical literature is carried out. On its basis, the problems that characterize the course of the process of socialization among younger schoolchildren are determined. The socialization of younger schoolchildren by means of social institutions is considered. The most significant social institutions for this age group that influence the effectiveness of socialization are the family and the school. Their decisive role in the pedagogical support of the successful socialization of younger schoolchildren and the solution of the problems of social formation and development of children of this age group is revealed. It is pointed out that both social institutions have their own characteristics, but in general they contribute to the formation of social skills, values and behavioral patterns in children of primary school age. It is shown that the family has a variety of different means and methods to ensure the successful socialization of children, it is the parents who are primarily responsible for their emotional and psychological health in the process of socialization. Recommendations for parents of children of primary school age aimed at ensuring their successful socialization are presented. The school is characterized as a social institution that contributes to the realization of the needs of younger students in a new educational activity for them. Recommendations are also formulated for teachers and schools that will help improve the process of socialization of children of primary school age.
Amadas y ¿chocantes? Notas sobre la reproducción, venta y circulación de estampas y retratos de Fernando VII (Nueva España, 1808-1809)
Authors: Mejía Chávez Carlos Gustavo
Published: June 2024

El presente trabajo tiene como propósito exponer el origen y circulación de algunas estampas y pinturas con la efigie del rey Fernando VII. Partiendo del análisis comparativo de ejemplares de efigies, grabados y pinturas que circularon entre España y la Nueva España durante los dos primeros años de la crisis monárquica española, así como una serie de testimonios de la época, se probará la presencia del imaginario pictórico fernandino, su uso propagandístico y las contrastantes ideas que dichas imágenes, en consonancia con el discurso fidelista de la época, pudieron generar entre la opinión pública.
El “sombrero frigio”. Valores, símbolos e iconografía en la tradición republicana cubana independentista
Authors: Guanche Julio César
Published: June 2024

Este texto estudia un aspecto de la tradición republicana cubana. Investiga cómo las ideas republicanas fueron apropiadas y recreadas en el contexto de la guerra de Independencia, y con qué símbolos los actores cubanos elaboraron sus propias ideas sobre esta corriente política. El artículo se concentra en el análisis de iconografía, un cuerpo de fuentes poco atendido en la historiografía cubana. Identifica ambigüedades y tensiones que influyeron en el proceso independentista para sugerir cómo se produjeron nociones republicanas “desde abajo” en Cuba torno a la independencia y la República. Con ello, el trabajo contribuye a restituir el republicanismo como una tradición central en la historia política cubana, no como un eco de proyectos de otras geografías, sino como resultado de la producción política popular.
Perspectiva comparativa de las llamadas guerras sucias en América Latina y México
Authors: Cedillo Adela
Published: June 2024

En este artículo se comparan los casos de Brasil, Chile y Argentina, países que experimentaron golpes de Estado, dictaduras, insurgencia armada y terror estatal en las décadas de los sesenta y los setenta, con el de México, donde ocurrieron fenómenos similares a pesar de que el país tuvo una revolución que eliminó de escena los golpes militares. Los aspectos que se destacan en el análisis comparativo son el sistema político, las organizaciones armadas clandestinas, la contrainsurgencia y sus saldos, la lucha por los derechos humanos y la memoria. Asimismo, se incluye una descripción de la Operación Cóndor mexicana –enfocada en la eliminación de cultivos de droga– para enfatizar sus similitudes con su contraparte sudamericana, a pesar de que no había ninguna conexión orgánica entre ambas. El planteamiento general es que la perspectiva comparativa ofrece un nuevo ángulo para entender las causas y el escalamiento de la violencia política en casos que no se consideraban equiparables, al examinarse la yuxtaposición de los contextos local, transnacional y global. El artículo se basa en investigación de archivo y hemerográfica, entrevistas, informes oficiales y fuentes secundarias.
La violencia política como espectáculo. Los medios masivos frente al conflicto armado guerrerense de los años setenta
Authors: Rodríguez Israel
Published: June 2024

El artículo muestra, mediante el análisis de un amplio conjunto de materiales provenientes de distintos medios de comunicación impresos y audiovisuales, que los fenómenos de violencia política desarrollados en México durante los años setenta no sólo no permanecían ocultos para la población (como se ha plantado generalmente), sino que ocuparon un importante y complejo espacio como mercancías de consumo para los sectores urbanos. Para mostrar esto, el texto presenta tres apartados. En primer lugar, se realiza una revisión crítica de los estudios dedicados a analizar la presencia de la violencia política en los medios de comunicación y propone que es necesario emprender un replanteamiento de los consensos historiográficos alcanzados. En segundo lugar, se realiza un seguimiento sintético de la trayectoria política y mediática de los dos principales grupos armados surgidos en el estado de Guerrero para mostrar cómo estos grupos participaron activamente en la esfera pública. Finalmente, se hace la revisión de materiales que comúnmente han quedado fuera de los estudios sobre la presencia de la violencia política en los medios, como reportajes de televisión, películas o historietas, para mostrar que la percepción pública del fenómeno guerrillero se jugó en un complejo y cambiante mapa mediático que posibilitó la aparición de la violencia política en la esfera pública en espacios y formas menos esquemáticos de lo que suele pensarse.
Pilar es un pilar de la historia
Authors: Zárate Toscano Verónica
Published: June 2024

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Young muslim generation’s preferences for using digital platforms for Zakat payments: A cross-country study of Indonesia and Malaysia
Authors: Ghofar Abdul , Fawwaz Muhammad , Prestianawati Silvi Asna , Mubarak Muhammad Faraz , Manzilati Asfi , Imamia Tsumma Lazuardini
Published: June 2024

The young Muslim generation’s embracing digital platforms for Zakat payments represents a dynamic fusion of enduring religious values with the modern digital landscape, heralding a new era in Islamic charitable practices. This trend illustrates a profound transformation within the Islamic world, where the pillars of faith are being reimagined and revitalized through the lens of technological advancement. The present study delved into the factors influencing the young Muslim generation’s preference for digital platforms in Zakat transactions across Indonesia and Malaysia. We examined variables such as Performance Expectancy, Effort Expectancy, Social Influence, Trust, Zakat Literacy, and Digital Infrastructure, aiming to discern their impact on the propensity for digital Zakat contributions with the extension of Unified Theory of Acceptance and Use of Technology (UTAUT) model. The research encompassed a diverse sample of 382 participants and utilized advanced methodologies, specifically Partial Least Squares Structural Equation Modeling (PLS-SEM) and PLS Multi Group Analysis (PLS-MGA), for rigorous data analysis. The results indicated that Effort Expectancy, Social Influence, Digital Infrastructure, and Zakat Literacy notably influenced the use of digital platforms for Zakat. Furthermore, PLS-MGA uncovered significant cross-country differences where Digital Infrastructure showed a more pronounced positive impact in Malaysian context, whereas Social Influence had a greater effect in Indonesia. These findings offer critical insights into the young Muslim community’s digital engagement for religious financial obligations, underscoring the need for tailored digital Zakat solutions that cater to the unique preferences of this demographic. This research not only enriches the understanding of digital adoption in religious practices but also challenges the notion of a universal approach, advocating for context-specific strategies in the realm of digital religious financial services. Future researchers are suggested to consider longitudinal investigations as well as examining cross-regional contexts in this realm of research.
Food security drive and adoption of improved rice varieties on the production efficiencies of upland and lowland rice farmers in north-central Nigeria
Authors: Akanbi Oluwafemi Nathaniel , Olawuyi Seyi Olalekan , Adepoju Adebusola Adenike , Olarinde Luke Oyesola , Dlamini Sotja Graham , Dlamini Dan Vusanani
Published: June 2024

To attain the food security target of the country, fostering farmers’ adoption of improved rice varieties will go a long way toward closing the lingering production deficit gap in Nigeria, and meeting up with the ever-increasing demand for rice consumption in the country. This study investigated the effect of the adoption of improved rice varieties on the production efficiencies of rice farmers in the north-central Nigeria. A multistage sampling technique was uses to select 387 rice farmers, which includes 201 upland and 186 lowland rice farmers in the study area. A stochastic frontier analytical model (SFA) was employed to estimate production efficiencies (technical, economic and allocative) for the rice farmers. Further, a multivariate regression analysis (MVA) was applied to determine the effect of adoption on the efficiency levels of the rice farmers. The exploratory analysis of the data revealed that the rice varieties available for adoption by the rice farmers in the study area is 10, but both upland and lowland rice farmers adopted more of two rice varieties (Faro-46 and Faro-52). From the SFA results, most of the rice farmers have mean technical, economic and allocative efficiencies of 0.7, 0.54 and 0.76 respectively. The SFA estimates also indicated that seed, herbicide, fertilizer, farm size and capital assets significantly affect the efficiency of upland rice farmers, while the efficiency of their lowland counterparts is influenced by seed, farm size capital and herbicide, amongst others. The MVA estimates also showed that the adoption rate of improved rice varieties, years of formal education, and farm-level factors made significant contributions to the efficiency levels of the rice farmers. Importantly, the levels of adoption of all rice varieties by farmers indeed influenced their technical and economic efficiency, while having no impact on their allocative efficiency. The study recommended that the government, research institutes and developmental agencies should promote easy access to improved rice varieties by farmers, as this can further drive sustained adoption. This can evidently help to achieve desirable yield and enhance the efficiency level of the rice farmers and boost food availability and achieve the zero-hunger target in the study area and Nigeria at large.
Agricultural land, governance, and institutional change: Evidence from a Bulgarian study
Authors: Georgiev Minko
Published: June 2024

New Institutional Economics (NIE) uses solutions from law, economics and organization. The purpose of this article is to link in a single analytical approach the institutional environment, its change in the organizations uniting in one, what is happening in contracts with agricultural lands. The explanation of this type of governance means to integrate: theoretical definitions; formal rules (laws, court decisions and other legal acts); economic institutions—means and mechanisms of exchange; legal and economic forms in which, through governance of transactions property rights are transferred and protected. In order to achieve this goal, it is necessary to present the elements of the institutional matrix that are the cause of changes in subordination and coordination. Following the process of implementing an approach for reconciling the legal and economic nature of the contract forms and integrating the states, contract organizations and transaction costs in a common model. In order to solve the research problems tasks are adapted methods from law, economics, statistics. Such are: (a) positive legal analysis of legislation; (b) historical (retrospective) method of analysis of changes; (c) discrete-structural analysis to explain the process; (d) comparative-institutional analysis to clarify alternatives and an explanation of any of the effects; (е) regression analysis to model the relationships and present possible one’s scenarios to show the direction in which changes are needed. Changes in legislation, legal forms, mechanisms and the amount of payments create new behavioral patterns that change the contract. Therefore, in retrospect, we are witnessing how the number of changes in legal acts, the amount of fees; the number of participants-administrators of the processes; the number and registers - change the number of transactions; the duration of the actions in the contracts, which ultimately predetermines the different amounts of transaction costs for agricultural lands. This interdependence was established by constructing an econometric model. The analysis presents opportunities for change that would lead to scenarios with a reduced level of transaction costs, that is, improving governance and showing the way to improve the institutional environment related to agricultural lands in Bulgaria.
Studies on the quantification and time-sequence development of integration of industry and education level in higher vocational education-based on the panel data of China’s provincial from 2016 to 2022
Authors: Liu Xia , Wang Kebu , Luo Dan , Chen Lei , Zhang Hongfeng
Published: June 2024

An extensive assessment index system was developed to evaluate the integration of industry and education in higher vocational education. The system was designed using panel data collected from 31 provinces in China between 2016 and 2022. The study utilized the entropy approach and coupled coordination degree model to examine the temporal and spatial changes in the level of growth of the integration of industry and education in higher vocational education, as well as the factors that impact it. In order to examine how the integration of industry and education in higher vocational education develops over time and space, as well as the factors that affect it, we utilized spatial phasic analysis, Tobit regression model, and Dagum’s Gini coefficient. The study’s findings suggest that between 2016 and 2022, the integration of industry and education in higher vocational education showed a consistent improvement in overall development. Nevertheless, there are still significant regional differences, with certain areas showing limited levels of integration, while the bulk of regions are either in a state of low integration with high clustering or low integration with low clustering. Most locations showed either a “low-high” or “low-low” level of agglomeration, indicating a significant degree of spatial concentration, with a clear trend of higher concentration in the east and lower concentration in the west. The progress of industrial structure and the degree of regional economic development have a substantial impact on the amount of integration of industry and education in higher vocational education. There is a notable increase in the amount of integration between industry and education in higher vocational education, which has a favorable effect. Conversely, the local employment rate has a substantial negative effect on this integration. Moreover, the direct influence of industrial structure optimization is restricted. The Gini coefficient of the development level of integration of industry and education in higher vocational education exhibits a slight rising trend. Simultaneously, there is a varying increase in the Gini coefficient inside the group and a decrease in the Gini coefficient between the groups. The disparities in the level of integration between Industry and Education in the provincial area primarily stem from inter-group variations across the locations. To promote the integration of industry and education in higher vocational education, it is recommended to strengthen policy support and resource allocation, address regional disparities, improve professional configuration, and increase investment in scientific and technological innovation and talent development.
Radiomics in oncology: A mini-review of principles, applications and challenges
Authors: Karimzadhagh Sahand , Abbaspour Elahe
Published: June 2024

Radiomics, a quantitative approach to medical imaging, employs computational methods to extract features from the images, revealing hidden characteristics of specific regions. This emerging field leverages advanced techniques to analyze a spectrum of features from modalities, including computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) scans, aiming to decode tissue characteristics, disease progression, and treatment responses. The radiomics workflow integrates image acquisition, segmentation, feature selection, and data integration, utilizing advanced techniques such as deep learning, machine learning, and data mining. Radiomics demonstrates considerable potential in cancer detection and management, exhibiting high sensitivity and specificity in distinguishing between benign and malignant tumors and predicting outcomes. However, challenges such as imaging protocol variability, overfitting, and standardization requirements impede its broad clinical adoption. Innovations in multi-modal radiomics, deep learning, and genomics integration strive to mitigate these constraints. This review elucidates radiomics’ capabilities, current applications, benefits, challenges, and future directions in oncology.
Zwietrzelin a bazaltowa z Rutek k. Niemodlin a (wo j. opolskie ) – perspektywy współczesnego wykorzystania i przejawy dawnego użytkowania
Authors: Wyszomirski Piotr , Szydłak Tadeusz , Zawadzki Tomasz , Baranowski Marcin
Published: June 2024

W przeciwieństwie do zachodniej części Dolnego Śląska, wzmianki o zwietrzelinach rozwiniętych na bazaltach trzeciorzędowych w okolicy Opola są nieliczne i sporadyczne. W 2018 r. zwietrzelina tych skał została odsłonięta w większej ilości podczas prac górniczych prowadzonych w NW części kamieniołomu w Rutkach k. Niemodlina. Jej zasoby są znaczne i w odsłoniętym fragmencie szacowane na około 20 tys. m3. Zwietrzelina ta reprezentuje typ smektytowo-kaolinitowy. Występuje w niej też słabo uporządkowany minerał grupy kaolinitu, tj. haloizyt. Minerały grupy smektytu zawierają kationy dwuwartościowe (wapń, magnez) w ich przestrzeniach międzypakietowych, co jest najczęstszym – obserwowanym w przyrodzie – przypadkiem. W zwietrzelinie występują też fazy żelaziste reprezentowane przez goethyt i magnetyt oraz – w śladowej ilości – minerał fosforanowy, tj. crandallit. Znaczna zawartość minerałów ilastych w badanej zwietrzelinie – a zwłaszcza minerałów grupy smektytu i haloizytu – decyduje o dużej wartości jej powierzchni właściwej, dochodzącej do 100 m2/g. Stanowi to korzystną przesłankę do wykorzystania tej kopaliny jako materiału sorpcyjnego, który w stanie nieprzetworzonym może być stosowany w znacznych ilościach dla celów hydroizolacyjnych. Właściwości sorpcyjne zwietrzelin dostrzeżono już przed wieloma wiekami w zachodniej części Dolnego Śląska, wytwarzając z nich preparat leczniczy o nazwie terra sigillata. Zwietrzelina bazaltowa z Rutek była natomiast stosowana w XIX wieku w manufakturze ceramicznej w pobliskich Tułowicach do wytwarzania tzw. czarnej porcelany śląskiej.
Polskie zasoby węgla brunatnego, górnictwo i energetyka – co dalej?
Authors: Widera Marek , Urbański Paweł , Mazurek Sławomir , Naworyta Wojciech
Published: June 2024

Polska znajduje się w pierwszej dziesiątce krajów na świecie pod względem zasobów i rezerw węgla brunatnego. Pod względem wydobycia węgla brunatnego jej pozycja jest jeszcze wyższa, tj. szósta na świecie, czwarta w Europie i druga w Unii Europejskiej (UE). Rola węgla brunatnego w polskim miksie energetycznym jest kluczowa, gdyż w 2022 roku w elektrowniach nim opalanych wytworzono ~27% energii elektrycznej. Z arówno krajowa, jak i unijna polityka klimatyczno-energetyczna zakłada w ciągu najbliższych dwóch dekad odejście od węgla brunatnego jako źródła „brudnej” energii elektrycznej. Ten ambitny cel jest możliwy do osiągnięcia, jednak może mu zagrozić sytuacja geopolityczna. Z drugiej strony, po latach 2040–2044, w Polsce pozostanie duża liczba złóż węgla brunatnego. Z łoża są dobrze rozpoznane, szczegółowa budowa geologiczna dobrze udokumentowana, a szacowane zasoby przeznaczone do eksploatacji wynoszą 5,8 Gt. Z łoża te, podobnie jak pięć obecnie eksploatowanych, są zróżnicowane stratygraficznie, charakteryzują się złożoną geologią oraz reprezentującą różne typy genetyczne. W kontekście bezwęglowej polityki energetycznej w UE pozostaje problem prawnej ochrony złóż węgla brunatnego. Rodzi się zatem pytanie: co dalej z polskimi złożami węgla brunatnego? Można je w nadchodzących dziesięcioleciach zagospodarować, stosując udoskonalone metody niekonwencjonalne, takie jak zgazowanie in situ lub ex situ. Z łoża węgla brunatnego będą stanowić rezerwę strategiczną na wypadek głębokiego kryzysu energetycznego spowodowanego np. niestabilną sytuacją geopolityczną. Z atem sugerujemy pilne wprowadzenie bardziej precyzyjnych zmian prawnych, które chroniłyby przynajmniej część zasobów węgla brunatnego w Polsce dla przyszłych pokoleń.
Campylobacteriosis a single center experience - literature review and own research
Authors: Pasternak Gerard , Cieślak Anna , Walkowiak Mateusz , Borawski Wojciech , Lewandowicz-Uszyńska Aleksandra
Published: June 2024

Campylobacteriosis is the most common acute bacterial diarrheal disease in our population. It is caused by bacteria of the genus Campylobacter species whose prevalence in the environment and ease of transmission make these infections a serious epidemiological problem. Although the disease usually has a picture of mild self-limiting diarrhea in some cases there is a more severe course with the need for hospital care. Colonization by Campylobacter spp. also plays on of the main role in the pathogenesis of other diseases. The study was conducted using data from the records of 67 patients aged 3 months to 10 years hospitalized for acute diarrheal illness caused by Campylobacter spp. Microbiological culture yielded growth of C. coli in 14 cases and C. jejuni in 52 patients. The isolated pathogens showed significant antibiotic resistance variable depending on the bacterial strain. The least susceptibility to the drugs occurred with erythromycin and was mainly related to C jejuni. In 42 children it was necessary to implement antibiotic therapy during which azithromycin, amoxicillin with clavulanic acid, or Biseptol were used.
Ambisonics’ setup quality assessment through measurements and computations based on ITD and ILD functions using subbands and a Gammatone Filter Bank
Authors: Dąbrowski Marcin , Skorupa Jan , Raszewski Wojciech , Głowiak Maciej
Published: June 2024

Poznan Supercomputing and Networking Center (PSNC) developed an ambisonic installation and workflow as part of audio-visual 8K VR 360° immersive media experiments. This work aimed to investigate the quality of performance of the PSNC setup through both subjective tests as well as simulations providing objective parameters of interaural characteristics in a real-life scenario of PSNC studio. For the objective part, an algorithm for angle estimation has been proposed and computations were performed.
Reverberation divergence in VR applications
Authors: Rolkowski Patryk , Odya Piotr , Mróz Bartłomiej
Published: June 2024

This project aimed to investigate the correlation between virtual reality (VR) imagery and ambisonic sound. With the increasing popularity of VR applications, understanding how sound is perceived in virtual environments is crucial for enhancing the immersiveness of the experience. In the experiment, participants were immersed in a virtual environment that replicated a concert hall. Their task was to assess the correspondence between sound scenes (which differed in reverberation times and their characteristics) and the observed invariant visual scene. The research was conducted using paired tests. Participants were asked to identify the sound scene they considered more closely matched the concert hall seen in the VR goggles for each pair. Each sound scene differed in the employed impulse response. All the impulse responses were recorded in real venues such as concert halls, auditoriums, churches, etc. To provide a realistic auditory experience, the sound scenes were processed using third-order ambisonics and decoded using binaural techniques with HRTFs. The virtual concert hall was generated using the Unreal Engine and was the same for all the tests. One of the major conclusions drawn from the conducted research was confirming the role of spatial sound in creating immersive VR experiences. The study demonstrated that appropriately matching spatial sound to the VR visual scene is essential for achieving complete immersion. Additionally, expectations and preferences regarding reverberation characteristics in different types of spaces were discovered. These findings have significant implications for the design of virtual environments, and understanding these aspects can contribute to improving VR technology and creating more immersive and realistic virtual experiences for users.
Electronic footprint analysis and cluster analysis techniques for information security risk research of university digital systems
Authors: Lakhno Valerii , Lakhno Myroslav , Makulov Kaiyrbek , Kryvoruchko Olena , Desiatko Alona , Chubaievskyi Vitalii , Ishchuk Dmytro , Kabylbekova Viktoriya
Published: June 2024

In the article there are presented results of the study of the state of user competencies for different specialties of the university digital educational environment (UDEE) on issues related to information security (IS). The methods of cluster analysis and analysis of digital (electronic) traces (DT) of users are used. On the basis of analyzing the DTs of different groups of registered users in the UDEE, 6 types of users are identified. These types of users were a result of applying hierarchical classification and k-means method. Users were divided into appropriate clusters according to the criteria affecting IS risks. For each cluster, the UDEE IS expert can determine the probability of occurrence of high IS risk incidents and, accordingly, measures can be taken to address the causes of such incidents. The algorithms proposed in this study enable research during log file analysis aimed at identifying breaches of information security within the university's DEE.
Cyber threats to the Private Academic Cloud
Authors: Lakhno Valerii , Akhmetov Bakhytzhan , Kryvoruchko Olena , Chubaievskyi Vitalyi , Desiatko Alona , Bereke Madina , Shalabaeva Maria
Published: June 2024

The potential breach of access to confidential content hosted in a university's Private Academic Cloud (PAC) underscores the need for developing new protection methods. This paper introduces a Threat Analyzer Software (TAS) and a predictive algorithm rooted in both an operational model and discrete threat recognition procedures (DTRPs). These tools aid in identifying the functional layers that attackers could exploit to embed malware in guest operating systems (OS) and the PAC hypervisor. The solutions proposed herein play a crucial role in ensuring countermeasures against malware introduction into the PAC. Various hypervisor components are viewed as potential threat sources to the PAC's information security (IS). Such threats may manifest through the distribution of malware or the initiation of processes that compromise the PAC's security. The demonstrated counter-threat method, which is founded on the operational model and discrete threat recognition procedures, facilitates the use of mechanisms within the HIPV to quickly identify cyber attacks on the PAC, especially those employing "rootkit" technologies. This prompt identification empowers defenders to take swift and appropriate actions to safeguard the PAC.
The ambiguity of frequency determination in digital microwave frequency discriminators
Authors: Stadnik Hubert , Stec Bronisław
Published: June 2024

Instantaneous frequency measurement devices are designated for very fast measurements of the current frequency value of microwave signals, even if they are very short in the time domain. Fast measurements of frequency temporary values may be based on the evaluation of the phase difference of signal propagating through the microwave transmission lines with unequal, but known, lengths. This paper presents the principle of determination of temporary values of the microwave signal frequency using the digitalized signals and the binary value of them eventually. In the purpose of increase the frequency discrimination resolution, additional tracks with lines with a larger length are proposed. For the system with elements with analytical model transmission characteristics it is typical that bands of ambiguity of frequency measurement occurs. To tackle this problem in addition to 4 x 4 Butler matrix implementation the method of using combination sine and cosine signals is proposed.
CNN ensemble approach for early detection of sugarcane diseases – a comparison
Authors: Kavitha K J , Krishna Prasad K
Published: June 2024

This paper mainly concentrates and discusses on sugarcane crop, the variety of cane seeds available for sowing; various cane diseases and its early detection using different approaches. Machine Learning (ML) and Deep Learning (DL) techniques are used to analyze agricultural data like temperature, soil quality, yield prediction, selling price forecasts, etc. and avoid crop damage from a variety of sources, including diseases. In the proposed work, with particular reference to eight specific sugarcane crop diseases and including healthy crop database, the neural network algorithms are tested and verified in terms quality metrics like accuracy, F1 score, recall and precision.
Designing of Reversible Functions in Classical and Quantum Domains
Authors: Skorupski Andrzej , Romaniuk Ryszard
Published: June 2024

First sections of the paper contain some considerations relevant to the reversibility of quantum gates. The Solovay-Kitayev theorem shows that using proper set of quantum gates one can build a quantum version of the nondeterministic Turing machine. On the other hand the Gottesmann-Knill theorem shows the possibility to simulate the quantum machine consisting of only Clifford/Pauli group of gates. This paper presents also an original method of designing the reversible functions. This method is intended for the most popular gate set with three types of gates CNT (Control, NOT and Toffoli). The presented algorithm leads to cascade with minimal number CNT gates. This solution is called optimal reversible circuits. The paper is organized as follows. Section 5 recalls basic concepts of reversible logic. Section 6 contain short description of CNT set of the reversible gates. In Section 7 is presented form of result of designing as the cascade of gates. Section 8 describes the algorithm and section 9 simple example.
Challenges and Prospects in Urban Warfare: An Analytical Framework
Authors: López-Rodríguez Guillermo , Montoya-Roldan Daniel
Published: June 2024

The population living in cities around the world will increase in the next decades. Conventional military forces will deploy more in constrained areas where their high-tech capabilities are not an advantage. This research provides an analytical framework for understanding the main challenges of urban warfare for conventional forces. The analysis identifies the military organizational dimension, dual-use technologies as game changers, and the role of civilian population in urban environments as key factors. The conclusions provide some policy recommendations concerning training and communication strategies. The prospects of urban warfare will be defined by a combination of cognitive and kinetic actions.
Alternative Recipes SMA 11 with EAF FE-NI SLAG Aggregates the Only Possibility of Increasing the Safety and Comfort of Driving on The Highway
Authors: Ibrahimi Izet , Deda Nol
Published: June 2024

Objective: The objective of this study is to investigate the possibilities of using the slag of the electric arc furnace, for the development of the alternative recipe SMA 11, as one of the possibilities of increasing the safety and comfort of driving on the highway.
 
Theoretical Framework: Theoretical, EAF (electric arc furnace slag) is an intermediate product, that during the melting process about 75% of the ore turns into slag, chemical and physical-mechanical properties of which make it a valuable aggregate for industry and especially for the development of recipes for asphalt concretes with advanced properties. The use EAF slag aggregates would be a good possibility for the development of an alternative asphalt concrete recipe for highways with comfort driving and high safety.
 
Method: The methodology adopted for this research comprises chemical, mechanical-physical research methods, as well as the evaluation of the performance indicators of the consumable layer AC, developed according to the alternative recipe SMA 11.
 
Results and Discussion: EAF Fe-Ni slag is classified as non-hazardous waste and has properties almost similar to conventional aggregates, and in some cases even better. The results obtained of the research have shown that the alternative recipe SMA (stone matrix aggregate) has an excellent skid coefficient, which guarantees high driving safety on the highway.
 
Originality/Value: The use of EAF slag, in addition increasing the safety and comfort of driving on the highway, at the same time, show positive effects in terms of the rational use of natural resources, energy resources and environmental protection.
Sufism and Politics: Internalization of Political Piety in Young Sufi in Indonesia
Authors: Rahmatullah Muhammad , Suwito  , Sahnan Ahmad , Waseso Hendri Purbo
Published: June 2024

Objective: At the end of this decade, a phenomenon emerged that there were groups of young people in Indonesia who tended to carry out activities with Islamic spiritual nuances (Sufism). Their studies intensely discuss, and practice Sufism associated with political piety. This activity is very productive to build a nation that is spiritually intelligent and has Sufism-based religious moderation. This research was conducted at Jamaah Maiyah Yogyakarta, Café Rumi Jakarta, Jamaah Nahdatul Aulia, Al-Mu'min Pontianak, Jamaah Masjid Aolia Gunung Kidul, Yogyakarta. This article aims to describe and analyze the understanding, internalization, and contextualization of Sufism related to political piety in Sufi youth.
 
Theoretical Framework: This research discusses young people's interest in Sufism. It examines how Sufism and politics can be internalized in young Sufis. Sufism and piety in politics are closely related to the neosufism theories of Ibn Taimiyah, Fazlur Rahman, Howell and Bruinessen. Sufism has a big role in integrating Sufism with political piety in Sufi youth.
 
Method: The research approach was carried out using ethno-cyber, with data collection methods through in-depth interviews, observation, and documentation.
 
Results and Discussion: The findings of this research show that the model and practical steps for internalizing the political piety of young Sufis in Indonesia are carried out by: (1) Opening the inner eyes (bashirah) of young salik (Sufis). With this, one will see the fact that reality is one. There is no contradiction between each other; (2) Shows that the political reality embodied in parties is essentially a particularity for universality (unity). The difference is another compliment. Sufism views political differences as a complement, (3) Understanding reality wise and thoughtful, (4) Realizing that politics is only a tool for liqa' and qurbah with Allah by guaranteeing the implementation of activities to be close to Him.
 
Research Implications: This article makes young Sufis aware in Indonesia that Sufism and politics are sunnatullah, sufism is a tool can be installed for everyone by eliminating the ego so that politics can become a means to get closer to Allah. This article shows that Sufism and politics are in harmony in the lives of young Sufis in Indonesia.
 
Originality/Value: This research uncovered a phenomenon where groups of young people in Indonesia are increasingly engaging in activities related to sufism. They intensely study and practice sufism, intertwining it with political piety.
University Extension and Social Responsibility: Synergies and Discourses Around University Educational Policies
Authors: Cabanzo Carlos , Cala Favio , Fonseca Ingrid
Published: June 2024

Objective: The objective of this article is to show the relationship between university social responsibility and educational policies and management from the scenarios of university extension and social projection.
 
Theoretical Framework: The topics of university extension, university social responsibility, stakeholders in the framework of institutional governance are highlighted, which provide a solid basis for understanding the context of the research.
 
Method: The methodology adopted for this research comprises a qualitative study of documentary analysis at international, Latin American and local level of normative documents, with emphasis on higher education institutions attached to the state university system (SUE). Data collection was carried out with the support of the Atlas Ti. 23 tool.
 
Results and Discussion: Among the most important findings is that public universities have included university social responsibility (RSU) in the framework of extension and social projection policies, through the incorporation of management practices linked to their mission areas.
 
Research Implications: It is concluded that it is important to permeate the internationalization processes, continuing education and educational quality, as well as academic and administrative management.
 
Originality/Value: This study contributes to the literature because it presents strategies to support university decision-making in relation to society. The relevance and value of this research is evidenced in the possibility of modifying and permeating aspects that are immersed in such diverse aspects as educational quality, internationalization, design of indicators, continuing education, etc.
Tourist Destinations with Asymmetrical Local Development: the ‘Integrally Planned Tourist Centres’ of los Cabos and Loreto, Baja California Sur (Mexico)
Authors: Armendáriz Angélica Montaño , Torres Virginia Guadalupe López , Concha Juan Carlos Pérez
Published: June 2024

Objective: This paper examines the effects of tourism on local development in two IPCs, Los Cabos and Loreto, located in the state of Baja California Sur (BCS), in northwestern Mexico.
 
Theoretical Framework: The Integrally Planned Centers (IPC) are tourism development poles established in Mexico during the 1960s and 1970s to promote economic growth in peripheral coastal regions (then) underdeveloped but rich in natural resources and landscapes.
 
Method: An analytical-descriptive methodology is used, specifically the analysis of principal components, which allows contextualizing the evolution of tourism and development trajectories.
 
Results and Discussion: The results indicate the presence of asymmetric development trajectories, despite the fact that both regions started from the same development initiative, with FONATUR (the Mexican government's tourism board) in charge in both cases. Forty years after its creation, the government's tourism policy yields differentiated results. Los Cabos has become a world-renowned destination, associated with sport fishing, golf, and residential tourism. In contrast, the Loreto-Nopoló-Puerto Escondido tourist corridor has stagnated and is still waiting for its take-off towards sustained development.
 
Research implications: The IPCs of Los Cabos and Loreto, Mexico, are the result of a public tourism policy based on an exogenous development model, fundamentally oriented to "sun and beach" tourism, where economic variables are prioritized, to the detriment of social and environmental variables, which are important elements of sustainable tourism. A markedly uneven growth process is observed between the two IPCs, Los Cabos points out, which, to date, is successful in macroeconomic variables, while in terms of development it is very limited and lower than planned.
 
Originality/Value: In the research, inferential statistical methods are applied, through the analysis of Principal Components, from which the impact of public tourism policies on regional development is measured. This instrument is applied to two tourist destinations that show an asymmetrical development, one of which was constituted as the second international tourist destination in Mexico.
Immersion of Venezuelan Migrant Workers in Colombia
Authors: Montero Francisco Bustamante , Ayala Juan Mateo Andrade , Mesa Rafael Rodríguez , Zuñiga Alejandro Luis Blanco , Garcia Yadira Esther Garcia , Ariza José David Torrenegra
Published: June 2024

Objective: this research aims to determine the opportunities offered by various societies, which exercise employment contracts, focusing on subjects with migration circumstances, in this case Venezuelans; examining the global challenges and perspectives that a state assumes, the impact that this phenomenon causes on society, along with its consequences and the adaptation processes in the work environment.
 
Theoretical Framework: The driving factors of migration are investigated from the economic, social, political and demographic order.
 
Method: A socio-legal approach and a qualitative paradigm are used, since the information is collected and selected through reading articles, bibliographies and virtual and in-person meetings. Ideas were exchanged and the different research that was found to contribute to the development of the central theme was socialized.
 
Results and Discussion: The main reasons for migration and the working conditions that the state grants to migrants were determined.
 
Research implications: A wide range of areas are covered, from public policies to labor and social practices.
 
Originality/Value: This research examines various aspects from multifaceted perspectives with main relevance in political and social relations.