bluuebunny/crossref_metadata_2025 huggingface dataset:
Prevention of obesity in childhood and adolescent age
Authors: Radlović Jelena , Leković Zoran , Rosić Petar , Mladenović Marija , Čevrljaković Iva , Radlović Nedeljko
Published: February 2025

Obesity is a global and constantly growing health problem of modern humanity. Except in economically developed countries, it is increasingly common in developing countries as well. It is significantly more common in adults than in children, as well as in women than in men. It is estimated that around 10% of school-aged children in the world are over nourished, of which a quarter are obese. Numerous studies show that in parallel with the expansion of obesity, the frequency of its severity also increases, as well as the number and severity of the complications it carries. In addition, it has been proven that the majority of obese children and adolescents remain permanently obese, and that pre-adult obesity, apart from its immediate consequences, significantly contributes to cardiovascular and other problems in adulthood. Therefore, optimal nutrition during childhood is an extremely important factor, not only for health and adequate growth and development but also for the prevention of obesity and its consequences in the later stages of life.
Holiday Heart Syndrome
Authors: Serafimov Aleksandar , Kamčeva-Mihailova Gordana
Published: February 2025

Holiday Heart Syndrome, also known as alcohol-induced atrial arrhythmia, is a syndrome characterized by the occurrence of irregular heartbeats caused by alcohol consumption. It was first described at the end of the seventies of the last century by Philip Ettinker. The effects of alcohol on arrhythmogenicity are associated with the occurrence of reentry atrial and ventricular arrhythmias with different and incompletely explained mechanisms. The most common clinical symptom is palpitations after consuming an excessive amount of alcohol, but other symptoms and signs may also appear, such as: syncope, dyspnea, angina pectoris, etc. Differential diagnosis includes: alcohol intoxication, acute coronary syndrome, alcoholic and dilated cardiomyopathy, pulmonary thromboembolism, pneumonia, and other arrhythmias. If anticoagulation therapy is required, it is reasonable to use CHA 2 DS 2 VASc and HAS-B scores. The prognosis depends on the presence of heart disease. In most cases (> 90%) of atrial fibrillation caused by alcohol, the disorder spontaneously stops, and about 20-30% recurs within 12 months.
Modern methods of family planning
Authors: Mitrović-Jovanović Ana
Published: February 2025

Contraception separates sexual activity from procreation, allowing couples better control and planning of their lives, and consequently their families. Various contraceptive methods enable an individualized approach and selection based on the medical needs and personal preferences of users. This reduces the risk of side effects and discontinuation of the method while increasing user satisfaction. Available contraceptive methods can be categorized as biological (hormonal and intrauterine), mechanical (condom, diaphragm, cervical cap), chemical (spermicides), and natural (calendar method, appearance and quantity of cervical mucus, basal body temperature). The most commonly used methods include: combined hormonal contraceptive pills, progestin-only or mini-pills, intrauterine contraception (levonorgestrel or Cu/Ag), transdermal patch, implants, injections, spermicides, periodic abstinence methods, withdrawal, cervical CAP, sponges, diaphragm, condoms (male and female), emergency contraception methods (levonorgestrel, ulipristal acetate, and copper IUD), and sterilization methods (male and female). Modern recommendations emphasize the importance of an individualized approach when selecting a contraceptive method. However, for the youth population, there is a growing global trend towards recommending long-acting reversible contraceptive (LARC) methods, such as intrauterine devices and implants, along with dual protection through condom use, to prevent sexually transmitted infections. Effective contraception counseling remains a significant challenge today. It often requires cooperation between healthcare professionals and patients, with a joint assessment of desires and needs on one hand, and the benefits and risks on the other. Considering an individualized approach in decision-making regarding contraceptive method selection is crucial and can contribute to greater satisfaction, acceptance, and adherence to the chosen method.
Dementia: Etiology and clinical presentation
Authors: Lazarević Marija
Published: February 2025

Dementia means persistent deterioration of intellectual and cognitive functions with little or no impairment of consciousness/awareness or perception. There are several types of dementia, but the most common in everyday practice are: Alzheimer's disease, dementia with Lewy bodies (DLT), frontotemporal dementia (FTD), vascular dementia, and dementia due to hydrocephalus. In 10-15% of cases, dementias are reversible because they arose as a clinical manifestation of some other disease that can be treated and cured. This is particularly important for doctors in primary health care, who should recognize such disorders and treat them or refer them to a secondary or tertiary health care facility. The paper presents the etiology and clinical picture of dementia, which helps establish a diagnosis. The characteristics of the most common dementias of neurodegenerative, vascular, and infectious etiology are presented.
Production of titanium dioxide nanopowders from red mud
Authors: Stopić Srećko , Kostić Duško , Nikolić Nenad , Životić Dragana , Rosić Milena , Perušić Mitar , Bernd Friedrich
Published: February 2025

Red mud, byproduct of the aluminum industry, poses a significant environmental problem due to its chemical composition and the large quantities generated. This study explores the potential for its valorization through a multi-step process that includes reduction, leaching with acid solution, purification, and ultrasonic spray pyrolysis (USP). In the first step, red mud undergoes carbothermal reduction, during which metal oxides are transformed into metal phase and slag. In the second step, the slag is subjected to leaching under various conditions, including changes in pressure, temperature, and acid concentration, which allows the recovery of titanium in the form of titanium oxysulfate and other metals. Finally, after purifying the solution using precipitation or solvent extraction, ultrasonic spray pyrolysis is used to synthesize titanium dioxide (TiO₂) nanopowders from titanium oxysulfate (TiOSO₄). This integrated approach not only reduces waste but also produces high-value materials with broad industrial applications.
About the hard stones water jet cutting process
Authors: Mihai Radu
Published: February 2025

The study of dimensional stone cutting using water jets is one of the major fields of activity of the Hydromechanization team of the Department of Mining Equipment of the University of Petrosani. The paper presents the researches carried out in laboratory cutting of marble and other rocks in order to derive the laws, which are governing this process.
Impact of the internal landfill O.P. field D on the stability of the northern slope of O.P. field E in RB Kolubara
Authors: Petrović Branko , Anđelković Nikola
Published: February 2025

The surface mine Field E is located in the eastern part of RB Kolubara in the extension of Field C. In perspective, that mine should be the carrier of coal production in RB Kolubara (12 million t/year). In order to begin the exploitation of coal in this mining field, it is first necessary to dig out large amounts of overburden that are located above it. The space provided for depositing that overburden is the internal disposal site Polja B/C. At that landfill, in 2006, a large amount of deposited mass was moved and the floors on it were destroyed. For this reason, the continuation of overburden disposal at that landfill was impossible, so all the systems that disposed of overburden were transferred to the internal landfill of Field D, which extends along the northern slope of Field E. As a result, the landfill of Field D acquired a new contour over time. which changed the previously planned geometry of the landfill. Due to the unplanned dumping of excavated material at the Field D landfill, it has come to a position that any works in the northern slope of Field E can only be carried out with a very high degree of risk, which would endanger the safety of both people and equipment. This paper presents an analysis of the stability of the northern slope of Field E, taking into account the influence of the internal landfill of Field D on it.
From the history of Serbian mining hard coal mine Dobra Sreća 1884 - 1970
Authors: Maksimović Svetomir , Babović Marko
Published: February 2025

This paper was created as a result of the need to point out the difficulties faced by the coal economy of Serbia, starting from the period of its creation in 1835. Until the moment when many mines with Kama coal exploitation were closed due to the low price of oil and gas, difficult conditions work and insufficient research. When writing this paper, the existing literature was mostly used: J. Grgašević, Mining in Serbia, V. Simić, Development of coal mines and coal industry in Serbia, P. Jovanović, Mining on the soil of Serbia II/1 I Geological conditions of the terrain between "Podvis" and "Good luck" and prospective development of these mines, Mining Institute Belgrade. We also partially used the documentation that was available to the Sibinović family and which has not been published until now.
88 years of geological exploration of lignite in the Kolubara coal basin, Serbia: Years of exploration drilling (since 1936. up to 2024. year)
Authors: Vučković Bogoljub
Published: February 2025

This paper presents a brief overview of the geological achievements during 88 years period of continuously geology explorations. These geological explorations of coal span two centuries (the XX and XXI centuries) and are still ongoing Kolubara Coal Basin, with its center in Lazarevac is located 50 km south of Belgrade. The basic mineral raw material is soft brown coal - lignite. The exploitation of lignite is carried out on several surface mines, some of which began to operate in the early 1950s. The carrier of mining activities is a mine Kolubara Coal Mines (KCM1 ). Currently, annual production on all active mines is ≈30Mt lignite. The entire quantities of lignite dug out are used in Thermal Power Plants "Nikola Tesla A & B" for the electricity generation process. As such, this mine is the backbone of the mining and energy industries of Serbia. Geological exploration began well before the opening of surface mines, building on the underground mining of lignite, which began in this region at the end of the 19th century. Modern geological exploration is related to the beginnings of exploratory drilling in 1936, and over the course of 8 decades, exploration has been carried out continuously. In early 2024, a phase of extensive additional exploratory drilling is forthcoming. Since the first years of operation, more than 7.400 exploratory boreholes have been drilled in an area of 220 km2; > 4.100.000.000 t of lignite has been explored. Over the past 32.000 geological days, Kolubara geologists have continuously added one new exploration borehole every 4 days to the total geological fund of documentation.
ESTIMASI SEBARAN KARAKTERISTIK ENDAPAN SIRTU BERDASARKAN MODEL DARI VARIOGRAM ELEVASINYA
Authors: Sedarta Sedarta , Tibri Tengku Tibri , Onwardana Eka
Published: February 2025

Due to high demand of natural aggregate for construction aggregates, sand and gravel are one of the most much mined owing to cheap in production cost. Unfortunately, the value is low economically. The exploration is based only on the outcrop or any part of deposit body exposed to surface. The similarity of the topography surface traits is used to estimate the dissemination leading to high risk or uncertainty in the reserve-estimating. Such a deposit however, is a result of sedimentary process which may be re-eroded leaving behind a truncated body or disseminated in the form of lenses. Since the topographic surfaces are result of natural processes, the elevation must depend on one of controlling factors, e.g. geological process. This must comply with a variogram model. Therefore, 3 data sets have been tested; 2 of them related to measurement methods and the other is as a validator. Simulation results disclose that the sand and gravel in Desa Pardamean, Kec. Ajibata – Simalungun is governed by Gaussian or TPL-Stable model variogram with MSER 0.0961-m2. The dissemination is fractal distribution with covered range ±100-m, variation (sill) = 8-m and no nugget. The surface elevation can be estimated using variogram model unless the data set is not representative.
Análise da Variação e Preconceitos Linguísticos na Educação do Campo: uma revisão de literatura
Authors: Braga Morais Cajaíba Jaqueline , Sant’Anna Maia Lilian
Published: February 2025

O presente artigo tem como objetivo analisar se o ensino da Língua Portuguesa nas Escolas do Campo possibilita a reflexão acerca da Variação e do Preconceito Linguísticos. A metodologia utilizada é de natureza exploratória e revisão de literatura. O aporte teórico se ampara em Labov (2008); Calvet (2002); Mollica e Braga (2015), Zilles e Faraco (2015), Bagno (1999, 2006, 2007), Arroyo (1999; 2004); Frigotto (2012) dentre outros. Os resultados apontam a importância do ensino da Língua Portuguesa voltado a valorização da diversidade linguística. De modo a pensar estratégias que contribuam para a construção de um espaço escolar diverso, capaz de respeitar os distintos fenômenos da língua. No que tange a discussão acerca da Variação e o Preconceito Linguísticos existe uma vasta produção, contudo nos estudos voltados a realidade da Educação do Campo, esse movimento ainda é incipiente. Logo, existe necessidade de se efetivarem ações pedagógicas nas escolas do campo que considerem a heterogeneidade da língua e entendem o ensino da Língua Portuguesa enquanto possibilidade de valorização e reconhecimento da cultura e diversidade do campo, a fim de romper com o viés do preconceito.
Wahlen in der wehrhaften Plattform-Demokratie
Authors: Harfst Jan-Ole
Published: February 2025

Anlässlich der 21. Bundestagswahl unterzogen Deutschland und die EU-Kommission die größten Online-Plattformen einem „Stresstest“ – Ergebnis: Schulnote „ausreichend“. Mittel- und langfristig hat der Digital Services Act das Potenzial, die Integrität von Wahlkampfdiskursen zu schützen. Stand jetzt sieht das leider anders aus.
Wahllos im Ausland
Authors: Simon Niklas
Published: February 2025

Am kommenden Sonntag findet die vorgezogene Bundestagswahl statt. Eine bedeutende Wahl, bei der schon wenige Stimmen einen entscheidenden Unterschied machen könnten. Doch zahlreiche Stimmzettel von im Ausland lebenden Deutschen werden nicht rechtzeitig ankommen. Ebenso wie Berichte über frustrierte Wählerinnen und Wähler kursieren inzwischen vermehrt Vorschläge, wie sich dieser Zustand beheben ließe. Diskutiert wird dabei unter anderem die Einführung von Auslandswahlkreisen. Auslandswahlkreise lösen jedoch keineswegs alle Probleme und schaffen zahlreiche neue. Die Teilnahme an Wahlen von im Ausland lebenden Deutschen kann und muss verbessert werden, doch hierfür ist an anderer Stelle anzusetzen.
Quranic Interpretation Of Halal Food and Its Implementation In The Economic Development Of Sharia
Authors: Nasrudin Nasrudin , Ruhendi Ateng , Nursari Nina , Jamaludin Jujun
Published: February 2025

Abstract: This study aims to analyze the role of halal food described in the Quran for the fulfillment of basic human needs which ultimately intersect with economic activities, one of which is in the development of the sharia economy. This research uses a descriptive qualitative approach, with a review of documents. The results of this paper are more focused on the interpretation of Q.S. al-Baqarah Verse 168 and al-Maidah Verse 88 in the tafsir al-Maraghy and al-Misbah. So that in the explanation describes the extent to which the implementation of this verse can move humans in conducting the economy based on the teachings practiced by the Prophet SAW, especially those related to the development of the sharia economy.Keywords: sharia economics, halal food, qur'anic interpretation
Abstrak: Penelitian ini bertujuan untuk menganalisis peran makanan halal yang dijabarkan dalam al-Quran untuk pemenuhan kebutuhan pokok manusia yang pada akhirnya bersinggungan dengan kegiatan ekonomi, salah satunya dalam pengembangan ekonomi syariah. Penelitian ini menggunakan pendekatan kualitatif deskriptif, dengan penelaahan dokumen. Hasil penelitian dari tulisan ini lebih difokuskan pada penafsiran Q.S. al-Baqarah Ayat 168 dan al-Maidah Ayat 88 dalam tafsir al-Maraghy dan al-Misbah. Sehingga dalam penjelasannya menjabarkan sejauh mana implementasi ayat ini dapat menggerakkan manusia dalam melakukan perekonomian dengan berlandaskan ajaran yang dipraktikkan oleh Rasulullah SAW terutama yang berhubungan dengan pengembangan ekonomi syariah.
Peran Akuntansi dan Penerapannya dalam Kegiatan Ekonomi Syariah Menuju Masyarakat Madani
Authors: Putria Uus , Ziarahah Lena Ishelmiani , Yuniarti Vinna Sri , Sohifah Sohifah
Published: February 2025

Peran akuntansi dalam perkembangan ekonomi syariah sangat penting dalam menciptakan transparansi, akuntabilitas, dan efisiensi dalam pelaporan keuangan. Penelitian ini bertujuan untuk menganalisis implementasi akuntansi syariah dalam mendukung pembangunan masyarakat madani melalui kegiatan ekonomi berbasis syariah. Metode penelitian yang digunakan adalah kualitatif dengan pendekatan deskriptif-analitis, didukung oleh studi kasus dari beberapa lembaga keuangan syariah dan UMKM yang menerapkan prinsip akuntansi syariah. Hasil penelitian menunjukkan bahwa penerapan akuntansi syariah secara signifikan meningkatkan tata kelola keuangan dan kepercayaan investor. Kebaruan penelitian ini terletak pada eksplorasi komprehensif mengenai bagaimana akuntansi syariah tidak hanya berpengaruh terhadap kinerja keuangan, tetapi juga berkontribusi pada keadilan sosial dan keberlanjutan ekonomi. Kontribusi penelitian ini adalah memberikan rekomendasi dalam memperkuat standarisasi akuntansi syariah serta meningkatkan literasi keuangan bagi pelaku ekonomi berbasis syariah.
Comparing Procurement Methods in Donation after Circulatory Death Heart Transplantation: An Analysis of the UNOS Registry
Authors: Bashian Elizabeth , Gardner Graham , Christopher Kwon Ye In , Ambrosio Matthew , Tchoukina Inna F. , Shah Keyur B. , Chery Josue , Kasirajan Vigneshwar , Hashmi Zubair A.
Published: February 2025

Background: In donation after circulatory death (DCD) heart transplants, choosing an optimal procurement method between normothermic regional perfusion (NRP) and direct procurement and preservation on the TransMedics Organ Care System (OCS) remains an important consideration. Thus, we aimed to evaluate long-term outcomes between NRP and OCS in DCD heart transplants. Methods: Using the UNOS registry, we queried all adults (≥18 years old) undergoing DCD and donation after brain death (DBD) heart transplantation between December 2019 and September 2023. TransMedics OCS donors were defined by time from death to clamp ≤30 minutes. Comparatively, NRP donors were defined by time from death to clamp >30 minutes. Kaplan–Meier recipient and graft survival analyses were conducted. Multivariate Cox proportional hazard models were used to identify independent predictors of mortality. Results: We identified 11,767 DBD transplants, 507 OCS, and 265 NRP recipients. Acute rejection rates were not significantly different between groups (p = 0.42). However, significant differences in overall survival were identified between DBD, OCS, and NRP (p = 0.019). Nonetheless, this difference may be attributed to a significant decline in survival for OCS recipients at 3 years (60.7% vs. 78.8% for DBD vs. 83.3% for NRP). Moreover, there were significant differences in graft survival (p = 0.02), with NRP demonstrating superior outcomes at 3 years (83.3%) compared to 60.7% for OCS and 80.0% for DBD. Conclusion: Both procurement methods demonstrate comparable short-term survival and graft function. However, long-term outcomes are more favorable among NRP recipients than OCS and conventional DBD methods. Nevertheless, continued investigation is needed to understand why this mortality difference exists.
Optimized Vehicle Routing Problem for The Last Mile E-Commerce Parcels Delivery Using E-Cargo Bikes
Authors: Phyu Moe Pwint
Published: February 2025

This research addresses the Optimized Vehicle Routing Problem (VRP) for last-mile e-commerce parcel delivery using e-cargo bikes in a Central London case study setting. The primary objective is to enhance delivery routing efficiency, and reduce operational costs, competition time, and carbon footprints through the application of the Evolutionary Algorithm using the Excel Solver. With the rise of e-commerce, efficient last-mile delivery has become increasingly important to ensure customer satisfaction and sustainability. As an alternative, electric cargo bikes offer promising benefits, capable of navigating congested areas and providing eco-friendly delivery solutions since traditional delivery methods face challenges such as traffic congestion, high fuel costs, and significant carbon emissions. The research begins with a comprehensive literature review, highlighting the various VRP variants and their applications in urban logistics. Existing studies have primarily focused on optimization techniques for conventional vehicles, with limited attention to e-cargo bikes. This study fills that gap by developing the Mixed-integer linear programming (MILP) Mathematical Model specifically for e-cargo bike routes, considering factors such as vehicle capacity, delivery time windows, and distance minimization. Four different scenarios were tested to evaluate the effectiveness of the proposed algorithm. Data for this research was meticulously collected from e-commerce delivery records, urban traffic conditions, and geographical information pertinent to central London's delivery routes. The evolutionary algorithm was implemented to generate and iteratively improve upon feasible routing solutions by setting different parameters of population sizes and mutation rates which led to minimizing the total distance traveled and associated costs. Consequently, the best-optimized routes resulted a substantial reduction in daily logistics costs, from £141 to £112 which reduced the traveling distances from 65.176 km to 29.810 km which underscores the economic viability of e-cargo bikes for last-mile delivery. The research also highlights the substantial potential of e-cargo bikes to lower CO2 emissions, contributing to more sustainable urban logistics. The findings support the integration of e-cargo bikes as a viable alternative to traditional delivery vehicles, promoting both environmental benefits and daily operational efficiency, particularly in metropolitan areas like Central London. This study provides a foundational understanding of the benefits and challenges associated with e-cargo bikes in last-mile delivery, paving the way for further advancements in sustainable urban logistics.
PERCEPTIONS ABOUT CULTURAL DIFFERENCES AND RISK: THE CASE OF CHINESE TOURISM IN LATIN AMERICA
Authors: Peng Jianrong , Quer Diego
Published: February 2025

Drawing on a cultural perspective, this article analyzes the relationship between cultural differences, perceived risk, and the behavior of Chinese tourists in Latin America. The results from a mixed-method research design suggest that Chinese tourists perceive Latin America as a destination with many cultural differences from China, which has a positive impact on their travel intention. Besides, proficiency in the language of the destination and previous international travel experience have a positive influence on travel intention and a negative impact on the level of perceived cultural risk.

Desde un enfoque cultural, este artículo analiza la relación entre las diferencias culturales, el riesgo percibido y el comportamiento de los turistas chinos en América Latina. Los resultados de una investigación de métodos mixtos sugieren que los turistas chinos perciben América Latina como un destino con muchas diferencias culturales lo cual tiene un impacto positivo en su intención de viaje. Además, el dominio del idioma del destino y la experiencia previa en viajes internacionales tienen una influencia positiva en la intención de viaje y un impacto negativo en el riesgo cultural percibido.
2D:4D ratio as a predictor for malocclusion among Saudi children
Authors:   Department of Orthodontic and Pediatric Dentistry, College of Dentistry, Qassim University, Kingdom of Saudi Arabia, Alfawzan Ahmed Ali , Habibullah Mohammed Ali , Aloufi Nada Mohammed , Salama Mohamed Tharwat ,   Department of Orthodontic and Pediatric Dentistry, College of Dentistry, Qassim University, Kingdom of Saudi Arabia
Published: February 2025

2D:4D ratio is the ratio of the lengths of the index and ring fingers. It is a potential indicator of prenatal hormonal exposure, reflecting androgen sensitivity and it may influence skeletal and dental growth. Therefore, it is of interest to explore the correlation between the 2D:4D ratio and malocclusion types using Angle's classification of malocclusion in 410 male students aged 12-15 years from Alrass City, Saudi Arabia. Statistical analysis using Chi-Square tests revealed no considerable association between the 2D:4D ratio and malocclusion type (p=0.904). This data suggest that the ratio does not serve as a reliable predictor highlighting the complexity of factors influencing malocclusion and the need for further studies to better interpret hormonal, genetic and environmental contributions to craniofacial growth.
Tan Shuzhen and the 20th Century Music Scene in China
Authors: Yang Sara
Published: February 2025

The early 20th century witnessed a proliferation in the number of Chinese musicians and musical scholars. Missionaries introduced Christianity to China after its defeat in the Opium Wars out of Western Imperialism, and it was among these religious settings that Western music was disseminated. However, the practice of such music was strictly restricted to Westerners and extremely courtly settings: not until 1925 were Chinese audiences allowed to attend Shanghai Municipal Orchestra’s concerts. Not until then did the Chinese public start to truly integrate themselves into the Western music sphere. Furthermore, China lacked a formal music education system––as music teaching in China had been based on a master-disciple learning style, there were few musicians who could read and teach music. The later revolution in music performance and pedagogy, as well as the Chinese integration into Western music community, were attributed to many Chinese Western Music pioneers, with Tan Shuzhen (1907-2002) being one of them. As a violinist, violin professor, and violin maker, Tan Shuzhen left countless legacies. While pursuing violin education and career in Qingdao, Beijing, Shanghai, and Tokyo, Tan joined the all-foreign Shanghai Municipal Orchestra, marking the first presence of Chinese. Later, he served as a violin professor at multiple conservatories and started an instrument factory at the Shanghai Conservatory of Music after learning violin making with two amateurs in Qingdao. There are a number of books and articles regarding Western music’s early appearances in China, as well as the pioneers’ contributions. However, very few works are dedicated to Tan Shuzhen himself. As I watched From Mao to Mozart: Isaac Stern in China (1979) and The Gentleman from Shanghai (2001), and talked to the professors who specialized in Chinese musicology, I found Professor Tan Shuzhen’s story very inspiring and ground-breaking in Western music history in China. Drawing stories from Tan and the larger historical context, this article seeks to reimagine the big picture of the 20th-century music scene by recounting Tan’s chronicle and summarizing his contributions to Western Music in China. My endeavor is bold and audacious, but by publishing the article, I hope I can commemorate Professor Tan Shuzhen and his transformative contributions.
Comprehensive Guidance Program Model in American primary and secondary schools
Authors: Qiu Yuhan
Published: February 2025

Entering the 21st century, the world has entered a new era of accelerated modernization, and the international pattern and social form are undergoing unprecedented profound changes. In this context, mental health, as the cornerstone of teenagers’ comprehensive and healthy growth, has become increasingly important in the field of education and ushered in an unprecedented period of development opportunities. Comprehensive Guidance Program Model in American primary and secondary schools is based on the theory of human development. It is a three-dimensional, systematic and comprehensive psychological counseling mode. It is the main mode of psychological counseling in American primary and secondary schools today. This model is student-centered, points to the development of life and career, has a strict organizational structure and implementation steps, highlights the important position of psychological counseling in primary and secondary schools, and has a strong reference significance for the development of psychological counseling in primary and secondary schools in China. This paper aims to deeply analyze the development process and mechanism of the comprehensive mode of psychological counseling in American primary and secondary schools, and extract the successful experience and core ideas with universal applicability. Through this research, we hope to provide a solid scientific basis and practical guidance for the improvement of the school mental health education system in China, and help Chinese teenagers thrive on the solid foundation of mental health, and move towards a more brilliant future.
Tunneling Time and Hartman Effect: A Multivalued Perspective on Quantum Cosmological Tunneling Interpretation
Authors: Christianto Victor , Smarandache Florentin
Published: February 2025

The present article is dedicated to Robert N. Boyd, PhD, with whom we have discussed several exotic subjects in physics, including interstellar travel, med beds for future medicine, and the Pleiadian council. While we appreciate and admire his vast experience and involvement in several high-profile experiments, we respectfully disagree with his use of the Rodin coil with a special design to shrink the traveling time needed to traverse galaxies through the concept of folded space. We previously argued for a connection between the Navier-Stokes and Schrödinger equations, then used standard tunneling time theory [1, 2]. Here, we propose an alternative interpretation of the Hartman effect in tunneling, suggesting that it represents the multivaluedness of solutions to the Schrödinger equation. This implies that an electron or entity can exist in two places simultaneously, explaining how an entity can seemingly appear on the other side of a tunnel almost instantaneously upon initiating a quantum tunneling experiment. While counterintuitive, this interpretation aligns with Schrödinger's initial ideas. This phenomenon could be detected through near-field effects, such as a spin supercurrent detector in low-temperature physics experiments.
ASSESSMENT OF THE FINANCIAL HEALTH AND THE RISK OF BANKRUPTCY OF PASSENGER CAR DEALERSHIPS IN THE CZECH REPUBLIC DURING THE COVID-19 EPIDEMIC
Authors: Svítil Martin , Svoboda Ivo
Published: February 2025

Research background: The Covid-19 pandemic has affected all sectors of the economy. The automotive sector was among the worst affected.
Purpose: This article assesses the financial health and bankruptcy risk of passenger car and light commercial vehicle dealerships in the Czech Republic during the Covid-19 pandemic.
Research Methodology: The study uses publicly available data from 24 selected dealerships. Models Z’ score, Z” score and IN05 are used to assess financial health and bankruptcy risk.
Results: Surprisingly, the Covid-19 pandemic did not have a significant negative impact on the financial health of retailers on average during the period under review and there was no significant increase in the number of retailers at risk of financial problems or even bankruptcy.
Novelty: Many studies have looked at the impact of Covid-19 on the automotive industry. However, only few have focused on the automotive sales sector (car dealerships), which is an important part of the value chain.
Volby do Národní rady Slovenské republiky 2023: očekávaná změna směru
Authors: Šárovec Daniel , Hynčica Pavel
Published: February 2025

Volby do Národní rady Slovenské republiky v roce 2023 byly jako volby prvního řádu pečlivě sledované. Po volbách v roce 2020 vznikla relativně málo stabilní koaliční vláda. Tato situace vyústila v pád této vlády a ke jmenování úřednické vlády, která zemi dovedla k předčasným volbám konaným v září 2023. V těchto předčasných volbách zvítězila strana SMĚR–SD, nicméně úspěšné bylo i nové uskupení HLAS–SD. Jedním z výsledků voleb byl návrat Roberta Fica do premiérského křesla. Tato kvalitativní a deskriptivně zaměřená studie předkládá komplexní analýzu, přičemž pozornost je věnována událostem v období před a po volbách. Případová studie popisuje vývoj slovenského stranického systému, zkoumá širší dopad výsledků těchto voleb a následné změny v kooperativně-kompetitivních vztazích v rámci slovenského stranického systému. Výsledky parlamentních voleb v roce 2023 potvrdily dlouhodobou polarizaci a rozdělení slovenské politické scény a společnosti.
Análisis Crítico de la Instigación al Suicidio en el Código Orgánico Integral Penal ecuatoriano: Ubicación y Ambigüedades Legales
Authors: Martínez Valencia Maite Carmen , Hinojosa Ponce Rebeca Noheli
Published: February 2025

En este artículo científico se abordará el delito de instigación al suicidio, tal como está tipificado en el Código Orgánico Integral Penal del Ecuador. Se argumenta que este delito, de manera incorrecta, se clasifica generalmente dentro de los delitos contra la "integridad personal", cuando en realidad debería estar dentro de los delitos contra la "inviolabilidad de la vida" en aquellos casos en los que se logra la muerte. Por otro lado, cuando no se produce el deceso, debería estar encuadrado en los delitos contra la integridad personal. Además, se señala que los elementos objetivos del tipo penal no son lo suficientemente claros para identificar la conducta delictiva. Esto se debe a que se menciona de manera ambigua el término “daño”, lo que puede generar confusión al momento de su aplicación. Los tipos penales deben ser específicos y detallados para asegurar una correcta interpretación y aplicación del derecho. De esta forma, se plantea la necesidad de una revisión en la redacción del Código Penal, con el fin de clarificar los criterios bajo los cuales se sanciona la instigación al suicidio, evitando imprecisiones que puedan dar lugar a interpretaciones erróneas y a una justicia menos precisa.
Desarrollo de un Modelo de Aprendizaje Colaborativo utilizando IA para Estudiantes de Medicina y Odontología
Authors: Ordóñez Raffo Diego Antonio , Vaca Coronel Glenda Magaly , Tutasi Benitez Rosa Viviana , Erazo Vaca Giancarlo , Segura Cueva Kareellend Andreina
Published: February 2025

El avance de la inteligencia artificial (IA) ha permitido la creación de modelos innovadores en la educación superior, particularmente en áreas como Medicina y Odontología, donde la comprensión de conceptos clínicos es fundamental. Este artículo presenta el desarrollo de un modelo de aprendizaje colaborativo basado en IA, enfocado en la simulación de casos clínicos, el análisis automatizado de imágenes médicas y odontológicas, y la retroalimentación inteligente para los estudiantes.  El modelo propuesto emplea algoritmos de aprendizaje automático para   generar escenarios clínicos realistas, permitiendo a los estudiantes interactuar con casos dinámicos y recibir retroalimentación personalizada en tiempo real. Además, la IA facilita el análisis de imágenes diagnósticas, optimizando la precisión en la evaluación de patologías y mejorando la toma de decisiones clínicas. Se han documentado múltiples estudios científicos que validan el impacto positivo de la IA en la educación médica, respaldando su efectividad en el desarrollo de habilidades diagnósticas y la retención del conocimiento.  Los resultados obtenidos reflejan mejoras significativas en el rendimiento académico, la comprensión de la ciencia médica y odontológica, y la satisfacción de los estudiantes. La evaluación del modelo se basa en métricas como la retención de conocimientos, la precisión en la resolución de casos clínicos y la percepción del aprendizaje por parte de los estudiantes. Se concluye que la implementación de IA en el aprendizaje colaborativo no solo optimiza los procesos formativos, sino que también representa una herramienta eficaz para la educación en todas las etapas de formación, desde el pregrado hasta la especialización. Este enfoque promueve una enseñanza más personalizada, interactiva y eficiente, adaptada a las necesidades del siglo XXI en la educación médica y odontológica.
Ethical and socio-cultural perspectives on free-roaming cat care: The role of the Universitas Indonesia Peduli Hewan (UIPH) community in urban environmental management
Authors: Aryanti Dela Almira , Wijaya Sandra Turmudi
Published: February 2025

Background: The concept of sustainability can be applied to the management of free-roaming cat populations by humans in their environment. An increasing and uncontrolled free-roaming cat population can create problems for humans, the environment and the cats themselves. One of the efforts to manage the local cat population is carried out by the Universitas Indonesia Cares About Animals/Universitas Indonesia Peduli Hewan (UIPH) community in an urban campus environment. Such management is not necessarily in line with the concept of sustainability because it can be influenced by local community and environmental factors about which there is not much knowledge yet. Methods: Therefore, research is needed to find out more about the condition of free-roaming cats, the motivation and the role of UIPH in the UI Depok campus. A qualitative approach with in-depth interviews, direct observation and literature study is used. Findings: The results show that UIPH is a community of members from lecturers, staff and students who have concern for the survival of cats. UIPH activities include Feeding, Rescue, Fostering, Adoption and Education which are also assisted by volunteers, donations and co-sponsor collaborations. Activities by UIPH contribute to the condition of free-roaming cats that can roam freely on campus with relatively fat and healthy bodies. Conclusion: In its process, UIPH also faces problems and challenges related to the natural, social or man-made environment. But so far, they have been able to face them and carry out their routine activities. Membership, connections and ongoing programs have become an opportunity to develop community activities and regenerate wild animal awareness on campus. Novelty/Originality of this article: This study highlights the unique role of the UIPH community in managing free-roaming cat populations on an urban campus, contributing to the health and well-being of the animals. It also emphasizes the influence of local environmental and social factors in shaping sustainable wildlife management strategies.
Prescription Pattern Monitoring in India: A Thorough Analysis of Current Practices and Implications
Authors: Vasmale Nagesh
Published: February 2025

Prescription pattern monitoring studies (PPMS) are a tool for assessing the prescribing, dispensing and distribution of medicines. The main aim of PPMS is to facilitate rational use of medicines (RUM). There is paucity of published data analysing the effectiveness of PPMS. The present review has been done to assess the effectiveness of prescription pattern monitoring studies in promoting RUM. Data search was conducted on internet. A multitude of PPMS done on different classes of drugs were collected and analyzed. PPMS using WHO prescribing indicators were also included. The present article reviews various prescription pattern monitoring studies of drugs conducted all over country and abroad. It was observed in most of such studies that physicians do not adhere to the guidelines made by regulatory agencies leading to irrational use of medicines.
Gangguan Kesehatan Mental Terhadap Performa Akademik Mahasiswa Tingkat Awal
Authors: Astri Rahmawati  , Ayu Agustini  , Muhammad Rizki Ramadhan  , Nely Malihatul Zulfaa  , Hafizhah Nisrina
Published: February 2025

Penelitian ini memaparkan dampak permasalahan kesehatan mahasiswa semester awal di suatu perguruan tinggi terhadap performa akademik. Penelitian dilakukan dengan menggunakan survei online yang disebarkan dengan hasil 104 responden yang merupakan pelajar laki-laki dan perempuan berusia 16-20 tahun. Tujuannya untuk mendapatkan pemahaman yang lebih mendalam tentang prevalensi gangguan kesehatan mental di kalangan siswa dan dampaknya terhadap performa akademik. Temuan ini menyoroti nilai korelasi sebesar -0.403<0.001 yang artinya terdapat hubungan yang negatif antara gangguan kesehatan mental terhadap performa akademik, bahwa semakin tinggi tingkat gangguan kesehatan mental, semakin rendah perfroma akademik.  Adapun beberrapa strategi seperti menerapkan kebiasaan gaya hidup sehat, manajemen waktu yang efektif, dan mencari dukungan bila diperlukan dapat membantu mengurangi risiko gangguan kesehatan mental dan menjaga prestasi akademik.  Melalui mengintegrasikan strategi ini ke dalam kehidupan sehari-hari, individu dapat berupaya mengurangi stres, meningkatkan kesehatan mental, dan mempertahankan performa akademik.
Fkdiff: An Efficient Diffusion Model for Image Super-Resolution With Fourier Frequency Domain Transformation and Knowledge Distillation
Authors: Chen Yu
Published: February 2025

Image super-resolution (SR) techniques play a crucial role in various applications such as image restoration, medical imaging, surveillance, and remote sensing. Traditional methods often employ interpolation algorithms to upscale images, resulting in artifacts and reduced perceptual quality. Recent advancements in diffusion models (DM) have shown promising results in image generation tasks but are hindered by computational complexity, particularly in resource-constrained environments. By leveraging low-resolution images as prior information and operating in the frequency domain, FKdiff achieves enhanced computational efficiency and preserves high-frequency details effectively. The proposed method integrates a progressive hexagonal knowledge distillation (PHexKD) approach, ensuring lightweight model deployment without compromising performance. Experimental results demonstrate that FKdiff outperforms existing methods in terms of efficiency and effectiveness while a small amount of image generation quality is lost.
Research on Gross Domestic Product forecasting in Shanghai based on Auto Regressive Integrated Moving Average Model
Authors: Cao Yujun
Published: February 2025

GDP is an important reflection of economic development, and the correct prediction of GDP can provide an important reference for predicting economic development. The economy of various provinces and cities is an important influencing factor in China's GDP, and Shanghai, as a province and city with rapid economic development, has played a key driving role in the national economy. Therefore, this study will analyze the GDP value of Shanghai. This paper analyzes the GDP data of Shanghai from 2000 to 2022, establishes the ARIMA (0, 2, 2) model, and uses this model to predict Shanghai GDP data in 2023. Compared with the actual value, it is concluded that the model has high credibility and high prediction accuracy, and can be used for Shanghai. The city's GDP is forecasted in the short term to provide reference for government departments to formulate corresponding response policies.
Design and Research of Channel Estimation for OFDM Systems Based on BEM
Authors: Yao Ling , Sun Jing , Sun Weijia , Zhao Yurong , Md Johar Md Gapar
Published: February 2025

Orthogonal Frequency Division Multiplexing (OFDM) is extensively employed due to its advantages in countering channel perturbations, such as multipath fading and frequency selective fading. Nevertheless, the intercarrier interference and sensitivity to synchronization error are the issues that OFDM technology has to confront and resolve. To achieve reliable communication, the accuracy of channel estimation is of particular significance. In this paper, the base extension model is utilized for channel estimation on the MATLAB platform. The Base Expansion Model (BEM) can capture the key characteristics of the channel with fewer parameters, thereby reducing the complexity and enhancing the accuracy of channel estimation. In the system simulation, the signal transmission effect of the current channel is evaluated by comparing the mean error variance and bit error rate under different SNR values. The performances of CE-CEM, P-CEM and GCE-BEM under LS, MMSE and LMMSE are compared, and the best performance of GCE-BEM under LMMSE is obtained, realizing accurate channel estimation.
The Challenges and Approaches of Generative Artificial Intelligence (GenAI) to promote Educational Innovation
Authors: Xiu Le
Published: February 2025

The widespread application of generative artificial intelligence technology in the education sector has opened up infinite possibilities for educational innovation. This article analyzes the core elements, practical applications, and characteristics of generative intelligence technology, and examines the challenges faced by the education sector. These challenges cover issues such as the instability of generative AI algorithms, the complexity of protecting students' personal information, verifying the authenticity of generated content, and quality control. Corresponding solutions have also been proposed, including optimizing algorithms to improve the stability and accuracy of the model, strengthening privacy protection measures, and constructing a content quality evaluation system to promote the efficient application of generative intelligence technology in educational innovation. A prospect was made on the development trend of generative artificial intelligence technology in the field of education and its promotion of educational innovation.
Research on Colorectal Cancer Segmentation Algorithm Based on Deep Learning
Authors: Zhao Jing , Wang Xiaodan , He Chenxi
Published: February 2025

Colorectal cancer screening is important for colorectal cancer prevention and early colorectal cancer diagnosis. To address the problems of polyp color, shape, size and blurring of edges, which are common in medical images of colorectal polyps, the UNet Colorectal Cancer Segmentation Algorithm Based on Efficient Downsampling and Joint Attention Mechanism Through CIRKD (EJ-UNet-C) is proposed. Efficient Downsampling and Joint Attention Mechanism Through CIRKD, EJ-UNet).The UNet algorithm improves the downsampling part in the encoder part, which reduces the loss of information generated in the downsampling process, and obtains the E-UNet; by incorporating the joint attention module, the By adding the joint attention module, the extraction ability of polyp edges is further improved, and EJ-UNet is obtained; at the same time, EJ-UNet is used as the basic student network, and the knowledge distillation mechanism is introduced to use Deeplabv3 as the instructor's network for guided learning. The experimental results show that the optimized network EJ-UNet-C has an IOU of 0.763, which is 8.4 percentage points higher than the IOU of 0.679 of the basic network UNet. And the distillation-optimized model has a small number of parameters and high accuracy, and the overall performance of the network is excellent, which provides a reference for the research of establishing a clinical lightweight colorectal cancer image segmentation model.