bluuebunny/crossref_metadata_2025 huggingface dataset:
Uvodnik
Authors: Zupan Sosič Alojzija , Pezdirc Bartol Mateja
Published: October 2024

Razprave, objavljene v tematskem bloku Ars & Humanitas z naslovom »Sodobna slovenska književnost v 21. stoletju«, ne prinašajo samo novih in poglobljenih spoznanj o slovenski književnosti v tem tisočletju, ampak tudi uvide o splošnih značilnostih kulture in življenja v našem času. Vse na poseben način dokazujejo, da je slovenska književnost še vedno pomembna bivanjska kategorija, ki nam lahko v medikaliziranem in digitaliziranem kronotopu daje možnost izpolnjevanja sebe in družbe ter s tem omogoča (vsaj začasni) pobeg pred nesmislom in različnimi totalizirajočimi idejami.
Child Restraint use and Seating Position in Motor Vehicles: An Observational Survey in Ibadan Metropolis, Nigeria
Authors: Akinyemi Yingigba , Komolafe Mercy
Published: October 2024

This paper examined child restraint use by child passengers in motor vehicles and factors influencing its use and non-use. Observational surveys were conducted to determine the number of child passengers restrained, the type of restraint and its correct use at nursery and primary schools in Ibadan metropolis, Nigeria. Questionnaire was administered to drivers to obtain information on demographic characteristics, child restraint use, reasons for use and non-use, and barriers to their use. Multivariate logistic regression was used to analyse data. A total of 3,175 vehicles were observed. Most (62.3%) of the drivers used seat belt while only 6.8% of the 3,175 children observed were restrained. Out of the 215 children restrained, 56.9% of the child restraint seats were not placed properly in the vehicles while 43.1% were correctly placed in the rear middle position. Restraint misuse was indicated by premature adult seat belt use (11.9%). Factors associated with child restraint use include age of the child, vehicle type and driver seat belt use. Parents whose children use child restraint cited safety and safety as reasons for use of restraint. Reasons for non-use of child restraint include parental beliefs. Barriers to use of child restraints seats include child’s unwillingness and cost.
Geo-spatial Analysis of Infrastructural Facilities in Selected Oil and Non –Oil Producing Areas of Akwa Ibom State, Nigeria
Authors: Inyang Mbom-Abasi , Soneye Alabi , Odunuga Shakirudeen
Published: October 2024

Studies have shown that the significance of infrastructural facilities is dependent on their availability and spatial distribution. This study investigates the spatial distributional pattern of existing infrastructural facilities in twenty selected rural communities in the oil and non-oil producing areas of Akwa Ibom State. Spatial data were collected on the facilities through field inventory. The study adopted location quotient, Gini coefficient, and the standard score analytical techniques to analyse the spatial concentration, inequality, and infrastructure gaps in the study area. The results revealed a significant variation in the infrastructure distribution with varying degrees of locational concentration, deficiencies, and inequalities. The oil-producing area has four privileged communities, best served with education, health, and water infrastructure. About 51% of the population lives above the income poverty line. In comparison, the non-oil producing area has three privileged communities, best served with small-scale industry and commercial infrastructure. About 45% of the population lives above the income poverty line. It can be concluded that there is a spatial inequality in the provision and distribution of the infrastructural facilities between the oil and non-oil producing areas. The paper recommends enhanced infrastructure investment in underserved areas and an adherence to an optimal location standard to promote equity and spatial balance in the infrastructure provision.
Isolation, identification and antibiotic susceptibility patterns of bacteria associated with wound of patients attending Ahmadu Bello University Teaching Hospital, Shika, Zaria-Nigeria
Authors: Abdullahi B. , Lawal F.B.
Published: October 2024

An infected wound affects the quality of life, and compromises the wound’s healing rate. This study was aimed at isolating bacteria from  wounds and determining their antibiotics susceptibility patterns. A total of 100 wound swab samples were collected from wound patients  attending Ahmadu Bello University Teaching Hospital, Zaria, Nigeria. The samples were cultured and the resulting isolates identified  using biochemical tests. The identified bacteria were subjected to antibiotic susceptibility test using agar disc diffusion method. Out of  the 100 wound samples collected, 43 were infected with bacteria; given rise to overall prevalence of 43% bacterial wound infection. Out of  the 43 isolated bacteria, 58.1% were Staphylococcus aureus, 18.6% were Klebsiella spp while 23.3% were identified to be Pseudomonas  spp. Prevalence of bacterial wound infection was higher in female patients (47.3%) than their male counterpart (37.8%).  Age group 21-40 years had the highest prevalence of the infections (48.3%) and the least was observed among 10-20 years (33.3%). None  of the risk factors is significantly associated with the infection (p>0.05). All the isolates were 100% susceptible to ofloxacin. All the isolates  showed 100% resistance to penicillin. All the Pseudomonas species were 100% MDR. Staphylococcus aureus was the most frequently encountered bacteria and ofloxacin was the first drug of choice in the treatment of wound infections.
Carotid versus axillary artery cannulation for descending aorta remodeling in type A acute aortic dissection
Authors: Jiang Qin , Yu Tao , Huang Ke-Li , Liu Ke , Li Xi , Hu Sheng-Shou
Published: October 2024

BACKGROUND

Arterial cannulation sites for the surgical repair of type A aortic dissection (AAD) have evolved from right axillary artery (AA) cannulation to bilateral carotid artery (CA) based of femoral artery (FA) cannulation. Postoperative descending aorta remodeling is closely linked to the false lumen area ratio (FLAR), defined as false lumen area/aortic area, as well as to the incidence of renal replacement therapy (RRT).

AIM

To investigate the effect of the updated arterial cannulation strategy on descending aortic remodeling.

METHODS

A total of 443 AAD patients who received FA combined cannulation between March 2015 and March 2023 were included in the study. Of these, 209 received right AA cannulation and 234 received bilateral CA cannulation. The primary outcome was the change in FLAR, as calculated from computed tomography angiography in three segments of the descending aorta: Thoracic (S1), upper abdominal (S2), and lower abdominal (S3). Secondary outcomes were the incidence of RRT and the serum inflammation response, as observed by the levels of high sensitivity C reaction protein (hs-CRP) and Interleukin-6 (IL-6).

RESULTS

The postoperative/preoperative ratio of FLAR in S2 and S3 was higher in the AA group compared to the CA group (S2: 0.80 ± 0.08 vs 0.75 ± 0.07, P < 0.001; S3: 0.57 ± 0.12 vs 0.50 ± 0.12, P < 0.001, respectively). The AA group also had a significantly higher incidence of RRT (19.1% vs 8.5%, P = 0.001; odds ratio: 2.533, 95%CI: 1.427-4.493) and higher levels of inflammation cytokines 24 h after the procedure [hr-CRP: 117 ± 17 vs 104 ± 15 mg/L; IL-6: 129 (103, 166) vs 83 (69, 101) pg/mL; both P < 0.001] compared to the CA group.

CONCLUSION

The CA cannulation strategy was associated with better abdominal aorta remodeling after AAD repair compared to AA cannulation, as observed by a greater change in FLAR and lower incidence of RRT.
Regeneração natural da vegetação ciliar após 10 anos de restauração no rio Pandeiros, Norte de Minas Gerais
Authors: Ferreira Santos João Geraldo , Pinheiro de Azevedo Islaine Franciely , Gomes Figueiredo João Carlos , Santana Neves José Gustavo , Cruz-Neto Ozorino Caldeira , Fonseca Rúbia Santos , Souza Camila Silveira , Veloso Cristina Pereira de Jesus , Ferreira Nunes Yule Roberta
Published: October 2024

Objetivo: Avaliar o sucesso da restauração de trecho de floresta ciliar do rio Pandeiros (Januária, MG) após 10 anos de implantação. Metodologia: Na área, foram implantados diferentes modelos de restauração, utilizando plantio de mudas (espaçamentos 2 m × 2 m e 2 m × 4 m), com e sem semeadura direta. Avaliou-se a regeneração natural em quatro áreas de 1 ha cada. Para isso, em cada área foram alocadas 12 parcelas de 4 m2 em dois transectos, sendo seis parcelas próximas a vegetação remanescente e seis próximas à pastagem (zonas). Nestas parcelas, foram amostrados os indivíduos e espécies lenhosas, categorizados (guildas de regeneração e dispersão) e coletadas amostras de serapilheira e solo (0-5 cm) para avaliação do banco de sementes do solo. Resultados: Nas parcelas, foram amostrados 60 indivíduos de sete famílias, 13 gêneros, 14 espécies e três morfotipos, e das amostras do banco de sementes emergiram 3.297 plântulas, distribuídas em 23 espécies, 23 gêneros, 18 famílias e seis morfotipos. Verificou-se para a o estrato regenerante maior riqueza de espécies nas parcelas próximas a mata e para o banco de sementes maior riqueza no estrato solo, além de diferenças na composição de espécies tanto para as zonas, quanto para os estratos do banco de sementes. Conclusão: A regeneração está ocorrendo e é influenciada pela proximidade da fonte de colonização, mas o processo de restauração está lento e demostra grande influência do distúrbio passado e atual na área.
Variação temporal na composição e estrutura da vegetação em formação de Vereda
Authors: Cardozo Érica Pereira , Souza Camila Silveira , Dias Guilherme Costa , Costa Leonardo Pereira Silva , Santos Rubens Manoel dos , Santo Mario Marcos do Espírito , Ferreira Nunes Yule Roberta
Published: October 2024

Objetivo: Avaliar as mudanças temporais na composição e estrutura da comunidade vegetal nos diferentes habitats da vereda Almescla (Bonito de Minas, MG), no intervalo de cinco anos. Metodologia: Foi feita uma reamostragem da vegetação na vereda, após 5 anos, utilizando parcelas de diferentes tamanhos (estratos diferentes) em três zonas (floresta higrófila ou área aberta que incluía meio úmido e seco), incluindo indivíduos arbustivos-arbóreos. Para avaliar as mudanças estruturais foram calculadas a área basal, o valor de importância, o incremento, as taxas mortalidade, recrutamento, perda e ganho, e as mudanças na composição (diversidade beta). Resultados: Os resultados revelam uma leve variação na riqueza de espécies entre os habitats da vereda Almescla, com a floresta higrófila exibindo maior número de espécies arbustivas-arbóreas em ambos os períodos de amostragem. Houve um aumento na quantidade total de espécies em 2022, em comparação com 2017. Tapirira guianensis foi consistentemente a espécie com o maior valor de importância, seguida por Mauritia flexuosa e Xylopia aromatica. A beta diversidade foi alta, devido principalmente à substituição de espécies. A dinâmica da vegetação mostrou taxas de recrutamento e ganho em área basal superiores às taxas de mortalidade e perda basal, indicando uma substituição contínua de espécies. Algumas espécies apresentaram taxas específicas de mortalidade e recrutamento ao longo dos anos amostrados. Conclusão: Esses resultados nos mostram como a substituição de espécies e a diminuição na densidade de espécies arbustivas-arbóreas na vereda variou ao longo do tempo, indicando uma crescente modificação da paisagem.
THE PROBLEMS OF RECONSTRUCTING TRADITIONAL LANDSCAPES—THE EXAMPLE OF THE POLISH CARPATHIANS
Authors:   University of Silesia in Katowice, Faculty of Natural Sciences, Sosnowiec, Poland, Sobala Michał
Published: October 2024

Landscape changes are an inevitable process. However, the dynamics and magnitude of these changes have increased worldwide since the 19 th century, accelerating after the Second World War. As a result, many traditional landscapes have deteriorated rapidly. While in intensively used areas traditional landscapes have been completely wiped out, in extensively used areas they gradually evolve into afforested, restored, or semi-natural ones. This stems from progressive land abandonment that in temperate zone results in reforestation, and usually in the loss of some natural and cultural values. This, in turn, contributes actions designed to protect traditional landscapes. The basis for these protection activities should be reconstructing traditional landscapes’ historical state, based on different data sources. The sources of this knowledge are mainly archival cartographical materials. What is more, some elements of traditional elements have been preserved until the present and could also be a source of knowledge on past landscapes and historical land use. In this study, the problems of traditional landscape reconstruction will be discussed based on studies conducted in the Polish Carpathians. In this area, the disappearance of the traditional landscape of the seasonal mountain economy is observed mainly as a consequence of land abandonment and is connected with a “forest transition” typical of mountain areas in many developed countries. Although it is usually necessary to establish the current and historical state for effective landscape protection, determining the historical range and features of the traditional landscape of seasonal mountain economy in the Polish Carpathians is subject to a large degree of uncertainty. The various modern and archival cartographical materials available for this area could provide different results, which are often incomplete. There is only fragmentary information about the landscape in some of the time periods for which archival materials have preserved, and what was in between is only a matter of the researcher's interpretation. Therefore, knowledge on the historical landscape state is only residual, and the interpretation of available materials gives only a certain idea of the past, meaning it is impossible to determine how close this idea is to its true historical state.
LOESS OF SERBIA—FROM PALEOCLIMATE TO WINEYARDS
Authors: Gaudenyi Tivadar
Published: October 2024

Loess is a buff colored, clastic sedimentary rocky of eolian origin without stratification and laminations where the silt particles predominates (beside clay and sand). Gentle lithification with carbonate bonds makes them highly sensitive to water impacts which dissolute this rock. Its vertical breaking made steep slopes. Loess in the sedimentary record deposits are not homogenous sediments, but most contain paleosols or sand horizons which we denominated loess series or loess-paleosol sequences. In Serbia loess series are the most widespread eolian sediments on which the high quality chernozem-like soils are formed. It qualifies as parent rock the premium arable land and wineyards. According to the relief characteristics in the landscape we can distinguish plain loess and slope loess. Based on CaCO 3 content the most of Serbian series belongs to the classic loess series while in the Morava valley at a few places we can found a non-carbonated loess series. Only at Stari Slankamen (Koševac) we can found Lower Pleistocene loess at the other places the young part of Middle Pleistocene or just the Upper Plesitocene loess series are preserved in the sedimentary record. Loess series serve as a record of past climates and environmental conditions. Key aspects of loess and paleoclimate studies include stratigraphy and cyclicity deposits often show distinct layering that corresponds to different climatic periods. Within loess series, paleosols can provide additional information about past climates. The timing of loess deposition often correlates with glacial and interglacial cycles. Loess series can contain various proxies for past climates, such as mollusks, which provides information about past biotope proxies. Analysis of loess can help reconstruct past wind patterns and dust transport routes, offering insights into changes in atmospheric circulation and climate systems over time. The importance of loess studies help reconstruct past environments dynamics and climate conditions, providing a context for understanding past climate variability and change. Data from loess deposits can improve climate models by providing empirical evidence of past climate conditions, which helps refine predictions about future climate changes. Loess deposits have influenced human history by shaping agricultural practices and settlement patterns.
DETECTED AND PROJECTED CHANGES IN TEMPERATURE AND PRECIPITATION IN THE TERRITORY OF MONTENEGRO
Authors:   University of Montenegro, Faculty of Philosophy, Department of Geography, Nikšic, Montenegro, Burić Dragan , Mihajlović Jovan ,   University of Montenegro, Faculty of Philosophy, Department of Geography, Nikšic, Montenegro, Ducić Vladan ,   University of Belgrade, Faculty of Geography, Belgrade, Serbia
Published: October 2024

Climate change is a current topic, both in science and in public opinion. This paper will analyze changes in temperature and precipitation in Montenegro during the instrumental period and projections until the end of the 21 st century. For the purposes of this study, the percentile method was applied to daily temperature and precipitation data. In the study of contemporary climate change, the World Meteorological Organization recommends this method because it uses the same empirical distribution of daily extreme temperatures and precipitation, allowing for comparisons of results from different locations worldwide. The results showed a significant warming trend in Montenegro, as the number of cold days and nights (Tx10p and Tn10p) decreased, while the number of hot days and nights (Tx90p and Tn90p) increased. Regarding precipitation, during the observed 60-year period (1961–2020), the trend in the number of very wet, moderately wet, moderately dry, and very dry days (R95p, R75p, R25p, and R5p) was minor and mostly statistically insignificant. However, despite the negligible changes in precipitation percentile indices, it should be noted that Montenegro has experienced mild aridization over the past 60 years. Regarding temperature projections, data from three Regional Climate Models (ALADIN, REMO, and CCLM4) for the period 2021–2100, according to RCP4.5 and RCP8.5 scenarios, were used. The results indicate that the period 2021–2050 is expected to be even warmer than before, with further warming projected for the period 2051–2100, with the warmest conditions expected towards the end of the 21st century, i.e., in the period 2081–2100. For precipitation, results from ALADIN, HIRHAM, and RACMO projections for Podgorica were used. Predicted changes in the examined precipitation parameters until 2100 are mostly insignificant. In conclusion, the results have shown high model agreement for temperature, while precipitation projections are more complex, with qualitative and quantitative differences visible in modeling future precipitation changes. Overall, significant warming implies increased water evaporation, which, coupled with additional aridization (albeit mild), may pose challenges to the functioning of natural systems, human life, and activities.
AN OVERVIEW OF RECENT RESEARCH ON THE LJUBLJANA HEAT ISLAND
Authors:   University of Ljubljana, Faculty of Arts, Department of Geography, Ljubljana, Slovenia, Ogrin Matej , Lampič Barbara ,   University of Ljubljana, Faculty of Arts, Department of Geography, Ljubljana, Slovenia, Stefanovski Sašo ,   University of Ljubljana, Faculty of Arts, Department of Geography, Ljubljana, Slovenia, Miklavčič Iztok ,   Pileus d.o.o., Ljubljana, Slovenia, Svetlin Domen ,   Envirodual, d.o.o., Ljubljana, Slovenia, Gregorčič Tim ,   Independent researcher, Ljubljana, Slovenia
Published: October 2024

Research into Ljubljana’s urban heat island has gained momentum in recent years. After a preliminary study in winter 2020/2021, the Department of Geography of the Faculty of Arts, University of Ljubljana and its partners conducted a more extensive study in 2021/2022 to compare the intensity of the heat island in the period 1998–2022. While in 1998 the most intense heat island occurred in December, in 2021/2022 winter is the season with the mildest heat island (4 °C), fall the second strongest (5.1 °C), and summer with the strongest heat island (5.9 °C) in anticyclonic weather. Summer thus maintains similar values, while winter becomes weaker, which is a consequence of climate change and the increasingly green and mild winters in Ljubljana. The measurements have also shown that while the heat island in Ljubljana retains the uniform shape observed in 1998, the secondary peak in the east of the city is becoming stronger. When the heat island is less pronounced, it has the shape of a Y, but when it becomes stronger, it takes on the shape of an X. Once we determined the basic characteristics of the heat island and its extent, we began mapping the heat island in real time in 2024. The 2020/2021 and 2021/2022 studies were based on a combination of mobile bicycle and car measurements supplemented by stationary measurements. The most recent study is based on a dense network of stationary measurements in the urban area. The main aims of this study are the dynamic mapping of the urban heat island in real time and the identification of hotspots in the city where urban heat island mitigation measures are needed to reduce heat stress during the summer months.
UAV-BASED GEOSPATIAL MONITORING OF KUKLICA NATURAL MONUMENT (NORTH MACEDONIA)
Authors:   Ss. Cyril and Methodius University in Skopje, Faculty of Natural Sciences and Mathematics, Institute of Geography, Skopje, North Macedonia, Milevski Ivica , Aleksova Bojana ,   Scientific-Professional Society for Disaster Risk Management, Belgrade, Serbia,   International Institute for Disaster Research, Belgrade, Serbia,   Maarif International School – Skopje Campus, Skopje, North Macedonia, Dragićević Slavoljub ,   University of Belgrade, Faculty of Geography, Belgrade, Serbia
Published: October 2024

This research investigates the deployment of small Unmanned Aerial Vehicles (UAVs) for precise geospatial monitoring of Kuklica, a natural monument located near the town of Kratovo, North Macedonia, renowned for its distinctive earth pyramids. Designated as a natural monument in 2008 for its significant scientific and cultural value, Kuklica’s limited area of 0.8 km² poses considerable challenges for conventional monitoring techniques, such as satellite imagery and digital elevation models (DEMs). This study employs small UAV technology to capture high-resolution aerial imagery to address these limitations. A meticulously crafted flight plan, incorporating specific parameters for UAV altitude, camera angles, and imaging intervals was executed to ensure comprehensive data acquisition. Ground control points were strategically placed to enhance the accuracy of the geospatial data. The UAV imagery was processed to generate high-resolution geospatial products, including a 0.1 m precision DEM and orthophoto, combining both in a 3D model. This detailed analysis facilitated the identification of over 100 earth pyramids, with heights ranging from 1 to 8.4 m. A detailed 3D model of the largest pyramids was created, and its accuracy was validated through measurements from the LiDAR module of the iPhone 14 Pro mobile. Additionally, the study assessed erosion rates and identified anthropogenic influences that could contribute to site degradation. The research emphasizes the effectiveness of UAV technology for monitoring and geospatial analysis of geosites and provides a comprehensive framework for ongoing conservation efforts to preserve Kuklica’s unique geological and geomorphological features.
La IA en la educación: oportunidades y desafíos en la creación de materiales audiovisuales y textuales
Authors: Román José Manuel Mendoza , Gastélum Jesús Ernesto Duarte , Lemus José Alberto Alvarado
Published: October 2024

La Inteligencia Artificial (IA) generativa está transformando la educación, ofreciendo nuevas posibilidades para la creación de materiales educativos. Este artículo de revisión sistemática se centra en analizar las aplicaciones actuales de la IA generativa en la creación de materiales educativos. El objetivo principal es identificar las herramientas, técnicas y aplicaciones más comunes, así como los tipos de materiales que se están generando (textos, imágenes, videos, etc.). Para ello, se realizó una revisión sistemática de la literatura científica utilizando bases de datos como Google Scholar, Semanticscholar y Latindex. Los resultados muestran un creciente uso de herramientas como ChatGPT, DALL-E, y modelos de código abierto como Stable Diffusion, con aplicaciones en diversas áreas de conocimiento. La investigación concluye que la IA generativa tiene un gran potencial para personalizar el aprendizaje, mejorar la accesibilidad y optimizar la creación de materiales educativos. Sin embargo, es crucial un desarrollo responsable que garantice la calidad, la ética y la accesibilidad equitativa de la tecnología.
Investigación, recuperación y estudio del patrimonio musical popular de la aldea de Contige – Portugal
Authors: Molina María Angustias Ortiz , Ramos Fernando José Sadio
Published: October 2024

Este trabajo es solo una parte de un proyecto de intervención sociocultural, que pretende capacitar y dinamizar a la población de la aldea de Contige, una aldea rural del Centro de Portugal. El proyecto fue originado y llevado a la práctica por el segundo firmante entre su institución de educación superior y el trabajo de campo efectuado en una aldea del centro de Portugal (Contige). La primera firmante ha participado en la conducción de las entrevistas individuales y en grupo, grupo de discusión, recogida de canciones y su estudio musical. Por medio de este trabajo tratamos de intervenir social y culturalmente intentando dar capacitación y dinamización a la población de la aldea, siendo las principales líneas de esta intervención: (1) Creación de un grupo vocal-instrumental intergeneracional; (2) Intento de profundizar en la identidad cultural, capacitando a la mencionada población, utilizando social y culturalmente la Música para mejorar el desarrollo de los habitantes; (3) Realización del trabajo de recuperación del patrimonio musical popular de esa comunidad y hacer su estudio musical.
A NOTE ON THE THIRD FOCUS OF THE CARTESIAN OVAL
Authors: ROSIĆ ALEKSANDRA
Published: October 2024

The subject of this paper is the determination of the coordinate of the third focus of the Cartesian oval. For this purpose, the Computer Algebra System Maple was used with the use of the pseudo-resultant technique and Groebner bases. The third focus formula and consistency conditions for determining the third focus were obtained. The algebraic formula for the coordinate of the third focus when the focal points with general coordinates p, q, r were obtained and the consistency conditions for defining the Cartesian oval through the third focus were also presented.
NEW ASYMPTOTIC EXPANSIONS AND INEQUALITIES FOR MILLS RATIO
Authors: SUN JUN-LING , CHEN CHAO-PING , MORTICI CRISTINEL
Published: October 2024

This paper gives new asymptotic expansions for Mills ratio, and then establishes new inequalities for Mills ratio.
TRAVELLING WAVE SOLUTIONS OF (1+1)-DIMENSIONAL MODIFIED BENJAMIN-BONA-MAHONY EQUATION (MBBME) BY (G′/G,1/G)-EXPANSION METHOD
Authors: LIAQAT AZMAT , FARID GHULAM , BILAL MUHAMMAD
Published: October 2024

Abstract In this study, we study the travelling wave solutions of the Modified Benjamin-Bona-Mahony Equation (MBBME) using the -expansion method (EM). The expansion method, along with an appropriate transformation, allows us to derive a set of explicit solutions for the MBBME in terms of rational, hyperbolic, and trigonometric functions. The travelling wave profiles that these solutions depict are observable in a variety of physical systems that the MBBME describes. The results obtained by this solution play important role in the mathematical physics. Moreover, the graphical analysis of -EM are visualized in 2D and as well as 3D given in this work.
GAUSSIAN FERMAT NUMBERS, POLYNOMIALS AND THEIR ASSOCIATED TRANSFORMS
Authors: KULOĞLU BAHAR
Published: October 2024

In this paper, we introduced Gaussian Fermat numbers and polynomials. We provided the Binet formula, generating functions, and the exponential generating function for these numbers and polynomials. Additionally, we derived several identities for these polynomials, including the Cassini identity, Catalan identity, Vajda identity, Halton identity, Gelin-Cesaro identity, and D’Ocagne’s identity. We demonstrated that Gaussian Fermat numbers and polynomials can also be obtained through matrix representations and discussed key propositions based on the fact that the determinants of these matrix representations are constant. Furthermore, we explored the relationship between Gaussian Fermat numbers, polynomials, Mersenne numbers, and Jacobsthal numbers. We also presented the Catalan, Binomial, and Binomial of Catalan transformations of the Gaussian Fermat sequence and polynomials. Finally, we introduced the generating function for the Catalan transformation of the Gaussian Fermat numbers and polynomials.
PANEL DATA MODEL – MATHEMATICS ACHIEVEMENT OF COST RE-EDUCATION BASED ON THE IMPACT OF TOTAL COST VARIATION
Authors: IONESCU CONSTANTIN AURELIAN , FÜLÖP MELINDA TIMEA , TOPOR DAN IOAN , BUGNARIU ALEXANDRA DELIA , MĂGDAȘ NICOLAE
Published: October 2024

By taking into account temporal and individual effects, panel data models enable a precise analysis of the effects of total cost variations on cost redistribution, which is crucial for cost structure optimization. With overall price increases, businesses are also seeing higher costs. However, one piece of data is a specific concern: a business’s total cost. This research examined the total cost components to determine the factors affecting the total cost variation. We examined a listed business that has its activity structured in cost centers, presenting descriptive statistics of the independent and dependent variables of the study. A panel analysis was applied for the business to determine the factors that influence manufacturing costs and how these costs can be improved. The results show that personnel costs, costs allocated to the application of new software and hardware technologies, and quality management costs have significant statistical and economic effects. The outcomes indicate that the cost centers are crucial in organizing a business that aims to decrease expenses. Thus, reducing or eliminating costs linked to some factors with a noticeable arithmetical influence on the total expenses is possible. This examination is the initial effort to establish the impact of determining factors on total cost variation and associate this with businesses’ opinions of the cost. The results provide an amplified appreciation of the bases and levels of the costs of sourcing.
WASTE TO VALUABLE MATERIALS: GREEN SYNTHESIS OF SILVER NANO-RODS FROM SPENT COFFEE GROUND EXTRACT
Authors: SAYGI KADRIYE OZLEM , ONAY RAMAZAN
Published: October 2024

Green synthesis of metal nanoparticles is a promising approach to producing nanoparticles using natural and environmentally friendly resources. It involves the use of various biological agents such as fungi, bacteria, algae, and plants. This method avoids the use of toxic chemicals and reduces the environmental impact of conventional methods of nanoparticle synthesis. Green synthesis of silver nanoparticles (AgNPs) has potential applications in biomedical, environmental, and industrial fields. Conventional coffee brewing techniques produce large quantities of spent coffee grounds that contain bioactive compounds. Silver nano-rods (AgNRs) have been synthesized from filter coffee waste. This is the first report about the synthesis of AgNRs shape from spent coffee ground (SCG). The reduction of Ag (I) to Ag (0) was achieved by spent coffee ground aqueous extract. The obtained nanostructures were characterized by ultraviolet spectroscopy (UV-Vis), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). They showed a SPR band at a wavelength of 445 nm. The SEM images demonstrated that AgNRs generally contained a rod shape and average size of 100 nm. Elemental composition of AgNRs was analyzed by EDX. A strong peak was observed at around 3 and 3.5 keV. X-ray diffraction (XRD) patterns revealed the crystalline structure of AgNRs. The shape or size of the nanoparticles has an important role in all nanotechnology applications. It was presented a perspective for usage of spent coffee as a valuable material with great potential of application in medicine, pharmacy, and electronic industries. Green synthesized AgNRs from spent coffee may become promising candidates for nano opto-electronics and nanosensors due to their conductivity.
ASSESSMENT OF DELAYED HYDRIDE CRACKING IN CANDU PRESSURE TUBE USING THE PROCESS ZONE WITH CREEP EQUATION FROM ARTIFICIAL NEURAL NETWORK MODELLING
Authors: STOICA LIVIA , RADU VASILE , TOMA DENISA , JINGA ALEXANDRA
Published: October 2024

The pressure tubes of the CANDU 600 nuclear power plant at CNE Cernavoda Romania are made of Zr-2.5%Nb alloy, which is susceptible to hydrogen accumulation during normal operation. As part of the work, structural integrity analyses will be performed regarding the initiation of the Delayed Hydride Cracking (DHC) phenomenon at the complex flaws in the pressure tubes, which can be detected by the periodic inspections performed on the fuel channels. These flaws are described by the Canadian standard CAN/CSA N285.8 as a combination of a Bearing Pad Fretting Flaw (BPFF) with a Debris Fretting Flaw (DFF). The analysis of the mechanical stresses and strains field is obtained by finite element analysis (FEA) in the process zone of the flaws, that are located on the inner surface of the CANDU pressure tube. The work develops a method based on FEA, regarding the evaluation of the phenomenon of mechanical stress relaxation by creep in the process zone of flaws for the time interval between two periodic inspections of the CANDU fuel channels. This method allows obtaining the relaxation of mechanical stresses, by inserting the explicit function of the radial strain rate of the CANDU pressure tube (Zr-2.5%Nb alloy) into the algorithm for obtaining iterative numerical solutions in creep. The explicit function was obtained by the Multilayer Feedforward Neural Network (MFNN) method under the conditions of irradiation in-service specific to the CANDU fuel channels. The results of the work are used in the assessment of structural integrity by analysing the prevention of DHC initiation in the pressure tubes of a CANDU plant.
El uso del celular con fines didácticos con los estudiantes del nivel primario
Authors:   Universidad de San Carlos de Guatemala, Pérez Duering Teodoro Alberto
Published: October 2024

OBJETIVO: Determinar la importancia que existe dentro de la comunidad educativa sobre el uso y manejo de los celulares con un enfoque didáctico con los estudiantes del nivel primario en el municipio de Cobán, Alta Verapaz. MÉTODO: Es un análisis exploratorio y documental para el efecto se revisaron artículos científicos. RESULTADOS: El teléfono móvil es un medio de comunicación muy utilizado por todas las clases de la sociedad debido a su ubicuidad, personalización y capacidad de crear redes sociales que permitan a sus miembros interactuar de diversas formas. El teléfono móvil se ha convertido en el medio de comunicación más utilizado en el mundo, superando a todos los demás.  CONCLUSIÓN: En cuanto a los métodos de enseñanza, sigue habiendo una tendencia a favorecer los métodos tradicionales, como el uso de pizarras y copias en el aula. Sin embargo, el maestro incorporó el celular de forma grupal para el desarrollo de una de las clases observadas.  El maestro debe incorporar directamente el uso del celular en el aula con énfasis didáctico.
Las innovaciones en la formación del personal en buenas prácticas de higiene en un rastro bovino privado categoría “A” de Villa Nueva basados en las normas HACCP
Authors:   Universidad de San Carlos de Guatemala, Alvarado Ayala Ariel Alejandro
Published: October 2024

OBJETIVO: Identificar las innovaciones en la formación del personal en buenas prácticas de higiene en un rastro bovino privado categoría “A” de Villa Nueva   basados en las normas HACCP, con la finalidad de garantizar la inocuidad de los alimentos en el “Rastro La Vaca”. MÉTODO: Método científico, a través  de la indagación se utilizó con la aplicación de cuestionarios y entrevistas para lograr determinar la propuesta del programa de higiene y seguridad a través de la fase expositiva conceptualizando y la fase demostrativa comprobando las variables expuestas en la hipótesis. RESULTADOS: Se analizaron medidas de control en los Puntos Críticos de Control para garantizar el cumplimiento de los límites críticos establecidos, incluyeron la implementación de procedimientos operativos estandarizados de saneamiento, la formación del personal en buenas prácticas de higiene, el control de la temperatura y la aplicación de métodos de desinfección efectivos. CONCLUSIÓN: La falta de innovación de un Programa de Higiene y Seguridad basado en las normas del sistema HACCP en el “Rastro La Vaca” provoca que existan deficiencias en el proceso de faenado y sacrificio para la obtención de carne de res totalmente inocua.
Modelo educativo TAM: Evaluación de su utilidad en el contexto Universitario
Authors:   Universidad de San Carlos de Guatemala, Briones Zelada Laura Rosmery
Published: October 2024

OBJETIVO: evaluar la utilidad del modelo educativo de Aceptación de la Tecnología TAM en el contexto universitario. MÉTODO: estudio de enfoque hermenéutico a través de un proceso dialéctico en la revisión sistemática de literatura, con una muestra de seis artículos. RESULTADOS: Por medio del estudio se destaca la capacidad del TAM para potenciar la eficacia en la implementación de tecnologías emergentes en el ámbito educativo. Se confirma su validez como una herramienta efectiva para evaluar diversas aplicaciones de software, así como su eficiencia al ser aplicado en entornos de autoaprendizaje en línea adaptativo. CONCLUSIÓN: el Modelo de aceptación Tecnológica TAM es válido y ampliamente aceptado para comprender y mejorar la adopción de tecnología en la educación superior.
Savaş Alanlarından Spor Sahalarına: Birinci Dünya Savaşı Sonrası Olimpik Düzeyde Bir Etkinlik Olarak Müttefikler Arası Oyunlar (22 Haziran-6 Temmuz 1919)
Authors: Mutlu Mustafa
Published: October 2024

22 Haziran – 6 Temmuz 1919 tarihlerinde Paris'te düzenlenen Müttefikler Arası Oyunlar, uluslararası spor tarihinde özel bir yere sahip olan çok sporlu bir etkinliktir. Birinci Dünya Savaşı'nın sona ermesinden kısa bir süre sonra Amerikan Seferi Kuvvetleri (AEF) ve Genç Erkekler Hıristiyan Cemiyeti (YMCA) tarafından organize edilen ve İtilaf Devletleri arasında düzenlenen bu etkinlik, galip gelen farklı milletlere mensup askeri personel arasında dostluk ve dayanışmayı teşvik etmeyi amaçlamıştır. Olimpiyat Oyunları'na benzer bir yapıya sahip olan Müttefikler Arası Oyunlar, atletizm, yüzme, boks, futbol, tenis, güreş, atıcılık, binicilik gibi birçok spor dalında yarışmalar düzenlemiştir. Etkinlik, askeri rekabetin ötesinde, savaşın getirdiği yıkım ve kayıpların ardından barış ve kardeşlik mesajı vermek amacıyla gerçekleştirilmiştir. Müttefikler Arası Oyunlar, sporun birleştirici gücünü vurgulayarak, savaş sonrası dönemde uluslararası dostluğun ve iş birliğinin önemini ortaya koymuştur. Bu makale, Müttefikler Arası Oyunların kökenlerini, organizasyonunu ve etkisini araştırarak, savaş sonrası yeniden yapılanma, uluslararası ilişkiler ve küresel spor müsabakalarının evrimi bağlamında önemini analiz etmektedir.
Türk Silahlı Kuvvetleri’nin Bosna Hersek’te İcra Edilen Barışı Destekleme Harekâtı’na Katılım Süreci
Authors: Sağsak Metin
Published: October 2024

Geçtiğimiz yüzyıl içerisinde tarifi zor sonuçlar doğuran iki büyük savaş felaketi yaşanmıştır. Savaşın yarattığı büyük yıkım ve zayiattan gelecek kuşakları korumak amacıyla kurulan Birleşmiş Milletler (BM) Örgütü’nün temel amacı, uluslararası barış ve güvenliği sağlamaktır.
Özellikle II. Dünya Savaşı sonrası koşulların etkisiyle işlemez hale gelen ortak güvenlik sisteminde meydana gelen boşluğu doldurmak üzere geliştirilen barışı koruma mekanizması kapsamında icra edilen Barışı Destekleme Harekâtları, geçici bir tedbir olarak uygulanmaya başlanmış, fakat zamanla BM Örgütü’nün devamlı ve vazgeçilmez siyaseti halini almıştır.
Yugoslavya’yı oluşturan cumhuriyetlerin bağımsızlıklarını ilan etmeleri sonrasında başlayan etnik çatışmalar ve özellikle Bosna-Hersek’in bağımsızlığını ilanı sonrası artan şiddet olayları neticesinde, uluslararası toplum tarafından BM Barış Gücü misyonu bölgede görevlendirilmiştir.
Türkiye; dünyada yaşanan gelişmeler neticesinde meydana gelen gerginlik ve çatışmaların çözümünde barışçıl, kalıcı ve adil yollara başvurulmasının önemine inanmaktadır. Bu kapsamda; Balkanlar bölgesinde yaşanan çatışmalar ve istikrarsız ortama kayıtsız kalamayan, aynı zamanda bölge ile tarihi ve kültürel bağları bulunan Türkiye, Bosna-Hersek’te yürütülen Barışı Destekleme Harekâtları’na katılım sağlamıştır.
Türkiye; otuz yıla yakın süredir Bosna-Hersek’te icra edilen Barışı Destekleme Harekâtları’na iştirak ederek, buradaki tüm etnik grupların barış ve istikrar içerisinde yaşayabilecekleri bir ortamın oluşmasına katkıda bulunmaktadır.
TÜRKİYE’DE SALTANATIN KALDIRILMASININ İTALYAN KAMUOYUNDAKİ YANSIMALARI
Authors: Mengeş Yeter
Published: October 2024

Türkiye’de meydana gelen siyasal, toplumsal ve askerî gelişmeler sonucunda; saltanat ve hilafetin birbirinden ayrılarak saltanatın kaldırılması ve sonrası siyasal olaylar İtalya’da merak ve dikkatle takip edilmekte, bu gelişmeler İtalyan basınında yer alan haber ve yorumlar vasıtasıyla İtalyan kamuoyunun dikkatine sunulmaktadır.
İtalyan basınında yer alan haberlerde başlangıçta saltanatın kaldırılması genel olarak olumlu karşılanmakta ancak dünya Müslümanlarından gelebilecek olası tepkilere dikkat çekilmektedir. İtalyan gazetelerinde yer alan haberlerde bir süre sonra dünya Müslümanları tarafından saltanatın kaldırılması fiili durumunun kabul edilmiş olduğu kaydedilmektedir. Saltanatın kaldırılması ve sonrasında Vahdettin’in İstanbul’u terk etmesinin Türkiye’de memnuniyetle karşılandığı ifade edilen haberlerde, cumhuriyetin ilan edilmesi ihtimalinin yüksek olduğu belirtilmektedir.
Türkiye’de saltanat-hilafetin geldiği süreç İtalyan okuyucuların anlamasını kolaylaştırmak için Vatikan ile geçmişte yaşanan olaylar ile kıyaslanarak açıklanmakta ve buna bağlı yorumlar yapılmaktadır.
Bu çalışmada Türkiye’de saltanatın hilafetten ayrılarak kaldırılması ve Vahdettin’in Türkiye’yi terk etmesi ile sonrasında ortaya çıkan sürecin İtalyan kamuoyundaki yansımaları, İngiliz diplomatik belgeleri, dönemin İtalyan basınında yer alan haber ve yorumlar ile telif eserlerden istifade edilerek açıklanmıştır.
ALGORITHM FOR AUTOMATIC DETECTION OF UNMANNED AERIAL VEHICLES COMMAND AND TELEMETRY RADIO LINES IN SOPHISTICATED ELECTRONIC ENVIRONMENT
Authors: Buhaiov M. , Molodetskyi B.
Published: October 2024

Recently, the use of unmanned aerial vehicles for both reconnaissance and fire strikes has been increasing. The control of such vehicles and the transmission of telemetry information are carried out using a combined command and telemetry radio link and frequency hopping spread spectrum technology. In such conditions, the task of developing automatic algorithms for detecting and separating radio links for portable radio monitoring devices becomes especially relevant.
The aim of this work is to extend the capabilities of portable radio monitoring devices to detect unmanned aerial vehicles’ radio signals in sophisticated electronic environment by automating signal processing.
Formally, the research task is to detect and separate several frequency hopping spread spectrum signals in same frequency band. To solve this task, it is first necessary to detect the frequency channels and estimate frequency and, if necessary, temporal and modulation parameters of the signals in these channels. Estimates of signal parameters values are recorded in associative arrays. The paper proposes a scheme of the algorithm for automatic detection and separation of signals with frequency hopping spread spectrum, as well as the structure of the array with the results of frequency band analysis.
In the study of developed algorithm, we considered the practically important option of separating radio links with frequency hopping spread spectrum by the spectral width of the frequency element and the value of the signal-to-noise ratio in the frequency channel, since these features can be quite easily distinguished in the frequency domain. The radio links separation was performed by cluster analysis of scatter plots of parameter pairs estimates using a Gaussian mixture model.
The developed algorithm can be implemented in existing and prospective portable radio monitoring devices to automatically detect and determine the number of unmanned aerial vehicles by their radio links signals, in particular, under conditions of a priori uncertainty about the values of signal parameters.
ANALYSIS OF SPECTRA OF MULTI-FREQUENCY AMPLITUDE MODULATED RADIO SIGNALS
Authors: Kotenko V. , Dzyubenko V. , Kudriashov Yu. , Samoniuk O. , Prokopovych V.
Published: October 2024

The article presents the results of modeling the spectra of multi-frequency radio signals formed by phase modulation of a high-frequency pulsed amplitude-modulated radio signal by harmonic oscillation of an intermediate frequency in a phase modulator. Based on the obtained expression for the spectrum of the complex contour of the multi-frequency amplitude-modulated signal at the output of the phase modulator, the components of its spectrum were analyzed depending on the modulation parameters. It was established that the amplitude of these components of the spectrum and their number in the spectrum is uniquely determined by the values of the Bessel function of the first kind from the real argument - the phase modulation index. The value of the phase modulation index is directly proportional to the amplitude of the harmonic oscillation of the intermediate frequency and the steepness of the phase modulation characteristic. Frequency differences between adjacent components of the multi-frequency spectrum are uniquely determined by the frequency of the harmonic oscillation of the intermediate frequency. Each spectral component is a function of the form sinc (x), and the width of the spectrum is inversely proportional to the duration of the initial pulse amplitude-modulated radio signal. The initial phase of the central component of the spectrum corresponds to the initial phase of the high-frequency pulse amplitude-modulated radio signal. The initial phases of the side components of the spectrum depend on the nature of the change in the Bessel functions by the given phase modulation index.
According to the nature of the change of the spectrum parameters according to the modulation parameters, the multi-frequency amplitude-modulated signal can be classified as a family of noise-like signals. The formation of multi-frequency amplitude-modulated signals is carried out by single-channel devices, and no strict linearity restrictions are imposed on power amplification stages. The practical application of the studied signals provides an opportunity to potentially increase the energy and structural stealth of radio communication and radar systems.