bluuebunny/crossref_metadata_2025 huggingface dataset:
DEVELOPMENT OF SCIENTIFICLY BASED RECOMMENDATIONS FOR ENSURING GEOSPATIAL DEVELOPMENT OF TERRITORIAL COMMUNITIES
Authors:   O.M. Beketov National University of Urban Economy in Kharkiv, Кhalikov Serhii
Published: December 2024

Summary. The relevance and necessity of developing directions for ensuring the geospatial development of territorial communities on the basis of scientifically based recommendations has been proven.
The goal of the research on the development of scientifically based recommendations for ensuring the geospatial development of territorial communities has been achieved. The following tasks were solved: the directions of growth of the factors of ensuring the geospatial development of territorial communities were determined; the geospatial toolkit for ensuring the geospatial development of territorial communities is substantiated.
Geospatial development of territorial communities is considered as a systemic category defined by a complex of functional, spatial, urban planning, ecological, regulatory, security, investment, stakeholder, infrastructural, social, innovative factors and aimed at forming a better environment for the functioning of territorial communities.
Scientifically based recommendations regarding the provision of geospatial development of territorial communities, which are based on the results of integral assessment, mathematical modeling and forecasting of factors, have been further developed, which made it possible to determine the directions of provision of geospatial provision, to develop geo-informational monitoring maps and an organizational-spatial mechanism, taking into account the peculiarities of the functioning of territorial communities and regional aspects of their activities.
Keywords: geospatial development, territorial communities, land management, geoinformation systems, land use, integral indicator of the level of provision of geospatial development of territorial communities, scientifically based recommendations, geoinformation monitoring maps, organizational and spatial mechanism.
Implementation of circular and green economy in the context of achieving Sustainable Development Goals and ensuring state’s economic security: the overview of modern concepts
Authors:   SESE “The Academy of Financial Management”, Kucheriava Maria , Bychykhin Iegor ,   SESE “The Academy of Financial Management”
Published: December 2024

Introduction. The modern world faces numerous challenges related to climate change, limited natural resources, degradation of natural ecosystems, and increasing wastes. The answer to these challenges is the transition from a traditional linear economy to a circular model and green transformation aimed at conserving resources and mitigating the impact of environmental problems.

Problem Statement. The introduction of the circular and green economy involves the application of a systematic approach both in the context of achieving the Sustainable Development Goals and ensuring the state's economic security. This makes it expedient to study the theoretical foundations and institutional environment for implementing the principles of circular economy and green transformation, which will allow to form a scientific basis for disseminating these concepts in Ukraine in the context of European integration processes and achieving sustainability.

The purpose is to analyze the modern concepts of circular and green economy in the context of achieving the Sustainable Development Goals and ensuring the state's economic security.

Methods. The following methods were used:comparative analysis; synthesis and generalization of the data obtained; graphical and tabular methods (to ensure the clarity of the data presentation).

Results. The central categories of the concept of sustainable development are the rational use of resources and responsible consumption, which also form the basis for the formation of institutional support for the integration of circular economy principles into the economic life of society. This requires cooperation between the state, businesses, and civil society and finding innovative solutions to ensure economic security. This necessitates a scientific rethinking of existing traditional economic models in the context of sustainability.

Conclusions. An important element of the transition mechanism from a linear to a circular economy model in Ukraine in the context of European integration processes is the creation of appropriate institutional support. Adapting the mechanism for implementing the principles of the circular economy and the EU's green transformation in Ukraine requires proper scientific substantiation, which is a promising area for further research.
Use of financial instruments of anti-crisis management in modern economic conditions in Ukraine
Authors:   Kyiv National Economic University named after Vadym Hetman, Kuzhel Мarina , Klymenko Svitlana ,   Kyiv National Economic University named after Vadym Hetman, Dzyubenko Lyubov ,   Kyiv National Economic University named after Vadym Hetman, Kyryliuk Oksana ,   Kyiv National Economic University named after Vadym Hetman, Lobanov Olexandr ,   SESE “The Academy of Financial Management”
Published: December 2024

Introduction. The use of financial tools of anti-crisis management allowcompanies to attract the necessary resources, optimize costs and ensure their financial stability. That is why a detailed analysis and effective application of financial instruments is one of the key factors of business success in modern conditions.

Problem Statement. Increasing the effectiveness of the use of financial instruments by Ukrainian enterprises to ensure their stability and development in conditions of high economic instability.

The purpose is to develop recommendations on the effective use of financial instruments to minimize the consequences of crises and ensure sustainable business development, based on the analysis of the practical experience of Ukrainian enterprises.

Methods. General scientific and special methods were used: analysis, synthesis, grouping, description, comparison, theoretical generalization and abstract-logical.

Results. The paper analyzed the main financial instruments used in the process of anti-crisis management, the spheres of their effective use, and provided their comparative characteristics in various sectors of the economy of Ukraine.

Conclusions. The effective use of financial instruments is critically important for the survival and development of Ukrainian enterprises in crisis conditions. However, existing barriers such as limited access to finance, high interest rates and unstable legislation make this process difficult. To overcome these problems, it is necessary to develop a set of measures aimed at stimulating the development of the financial market, increasing the financial literacy of entrepreneurs and strengthening state support. Digital technologies open up new opportunities for optimizing financial processes and increasing the effectiveness of anti-crisis management. The implementation of technologies such as blockchain and artificial intelligence can contribute to increasing the transparency and security of financial transactions, as well as allow for more informed decisions based on data.
International cooperation of the Academy of financial management within the implementation of the memorandum of mutual understanding and technical partnership with the International Consortium on Governmental Financial Management (ICGFM, USA)
Authors:   SESE “The Academy of Financial Management”, Savostianenko Maksym
Published: December 2024

SESE “The Academy of Financial Management” (hereinafter referred to as the Academy) cooperates with the International Consortium on Governmental Financial Management (ICGFM, USA). According to the Memorandum of Understanding and Technical Cooperation signed in 2016, the foundations of a promising long-term partnership were laid. As part of the action plan for the Memorandum from 2016 to 2024 the Academy participated in many events of the international level, was directly involved in important scientific developments, actively and effectively presented and improved the image of Ukraine on the world stage. Evidence of the high level of trust and development of relations between the Academy and the ICGFM is the fact that its president, academician of the National Academy of Sciences of Ukraine Tetiana Iefymenko, was elected three times in a row to the Board of Directors of the Consortium as a representative of the Academy - an organizational member of the ICGFM. Working with the ICGFM Special Committee on International Accounting Standards, the Academy prepared proposals for many documents issued by the International Public Sector Accounting Standards Board (IPSASB). The effectiveness of cooperation with the ICGFM in the context of the implementation of the Academy's powers as an organizational member is confirmed by the implementation of the results of the Academy's research work in the activities carried out by the International Consortium, the use of international experience for further improvement of the public finance management system in Ukraine.
EVALUASI KINERJA ALAT JACKETED VESSEL (E-240) PADA PEMBUATAN HAND AND BODY LOTION DI SECTION MAKING PT SEJAHTERA UTAMA
Authors: Ennada Sabrina Asyrofa Aulia , Suharti Profiyanti Hermien , Prasetyo Bowo Pujo
Published: December 2024

Alat penukar panas merupakan alat untuk memindahkan energi dalam bentuk panas antar fluida dengan suhu berbeda. Efisien pertukaran panas dipengaruhi oleh laju pertukaran panas, koefisien perpindahan panas keseluruhan, dan luas bidang perpindahan panas. Alat penukar panas yang cocok untuk industri kosmetik yaitu jacketed vessel. Jacketed vessel merupakan tangki yang dilengkapi pengaduk dengan pemanas berupa jacket yang mengelilingi tangki. Prinsip kerja dari jacketed vessel yaitu fluida masuk dalam tangki untuk dipanaskan menggunakan pemanas yang berasal dari jacket berupa steam. Kinerja jacketed vessel di industri perlu diperhatikan dengan tujuan menjaga efisiensi perpindahan panas berjalan secara normal. Perhitungan evaluasi ini bertujuan untuk mengetahui efisiensi jacketed vessel (E-240) berdasarkan nilai koefisien perpindahan panas (U) dalam proses pembuatan hand and body lotion di PT Sejahtera Utama. Tahapan yang dilakukan adalah mengumpulkan data design dan suhu operasi selama 12 hari kerja. Hasil perhitungan yang didapat untuk nilai U data design sebesar 9,375 Btu/hr.ft2.oF, sedangkan nilai U rata-rata didapatkan 8,100 Btu/hr.ft2.oF dengan efisiensi 86,40 %. Hal tersebut disimpulkan bahwa alat jacketed vessel (E-240) masih dalam kinerja yang baik karena efisiensi perpindahan panas <70 %.
Pengaruh Teknik Relaksasi Lima Jari Terhadap Kualitas Tidur Lansia Hipertensi
Authors: Azzahra Zaira Tanesa , Dewi Rosliana , Waluya Ady
Published: December 2024

Penyakit degeneratif seperti hipertensi sering terjadi pada lansia dan dapat mempengaruhikualitas tidur serta produktivitas mereka. Penurunan kualitas tidur berdampak besarterhadap perilaku, rutinitas harian dan rasa kantuk sepanjang hari. Teknik relaksasi limajari diusulkan sebagai terapi non farmakologis untuk meningkatkan kualitas tidur padapenderita hipertensi. Tujuan Penelitian ini untuk mengetahui pengaruh terapi relaksasilima jari terhadap kualitas tidur lansia hipertensi di Kelurahan Selabatu Wilayah KerjaPuskesmas Selabatu Kota Sukabumi. Metode menggunakan desain Quasi Eksperimen,penelitian melibatkan 34 responden, dibagi menjadi kelompok kontrol dan intervensidengan masing-masing 17 responden. Sampel dipilih melalui metode purposive sampling,dan data dikumpulkan menggunakan lembar observasi. Analisis data menggunakan ujipaired sample t-test dan independent sample t-test. Hasil menunjukkan tidak ada perbedaansignifikan dalam kualitas tidur kelompok kontrol, namun terdapat peningkatan signifikandalam kualitas tidur kelompok intervensi (p-value < 0.05), menegaskan bahwa teknikrelaksasi lima jari efektif meningkatkan kualitas tidur penderita hipertensi. Diharapkanpasien hipertensi dengan kualitas tidur yang buruk selain mendapatkan terapi farmakologipasien hipertensi juga mendapatkan pengobatan tambahan teknik relaksasi lima jari yangdapat dilaksanakan dengan kunjungan rumah dan melalui penyuluhan kesehatan
Relación entre Déficit Fiscal y Comercial en Ecuador durante 2000-2022
Authors: Rodríguez-Saraguro Jimena-Elizabeth , Tonon-Ordóñez Luis
Published: December 2024

Este estudio examinó la existencia de déficits gemelos en Ecuador desde el año 2000 hasta el 2022. El objetivo fue comprobar empíricamente si la relación entre el déficit fiscal y el déficit comercial respalda la teoría de déficits gemelos en una economía dolarizada. La metodología empleada se basó en la aplicación de modelos de Vectores Autoregresivos (VAR), utilizando datos trimestrales del Banco Central del Ecuador, el Ministerio de Economía y Finanzas, y el Banco Central Europeo. Este enfoque permitió evaluar la interacción y causalidad entre las variables fiscales y comerciales, proporcionando un análisis cuantitativo robusto. Los resultados confirmaron una correlación significativa entre los déficits, indicando que las políticas fiscales expansivas fomentan los déficits comerciales. En conclusión, el estudio corrobora la hipótesis de déficits gemelos en Ecuador, subrayando la importancia de integrar las políticas fiscales y comerciales para mejorar la estabilidad económica y la sostenibilidad a largo plazo.
Factores de aceptación o rechazo hacia la integración de la inteligencia artificial y su relación con las capacidades dinámicas. Caso Universidad Autónoma de Guadalajara
Authors: Márquez-González Edgar , Muñoz-Hernández Ángel-Israel , Hernandez-Jimenez Rodolfo
Published: December 2024

Las capacidades dinámicas coadyuvan a las organizaciones a obtener ventajas competitivas, puesto que les permite prepararse y adaptarse a los cambios del entorno, incluidos los avances tecnológicos. En tiempos recientes, la inteligencia artificial ha ganado presencia en muchos campos, incluyendo el campo de acción de las Instituciones de Educación Superior (IES).Este estudio de corte cualitativo pretende mediante los métodos de estudio de caso y análisis de contenido descubrir los factores que influyen en los agentes clave de las IES para aceptar o rechazar la incorporación de la inteligencia artificial (IA) en su estrategia y modelo de operación incentivando o frenando la generación de las mencionadas capacidades dinámicas. Para tal fin, se analizó el caso de la Universidad Autónoma de Guadalajara (UAG) a través de una serie de entrevistas con directores de departamento o programa obteniendo información perceptual relevante que pueda servir como guía para la ejecución de planes de acción que motiven su transformación hacia el aprovechamiento óptimo de la inteligencia artificial en todas sus áreas funcionales. En los resultados de la investigación, se observa la presencia de dos factores que motivan la aceptación y dos que incentivan el rechazo hacia las aplicaciones de inteligencia artificial permitiendo concluir con una serie de recomendaciones que permitan aprovechar estos hallazgos. Por lo tanto, esta investigación propone una metodología para la detección de dichas motivaciones y/o barreras en aras de apoyar a instituciones similares a ir aprovechando los nuevos recursos tecnológicos de reciente aparición para su crecimiento y consolidación dentro de sus correspondientes mercados.
Tendencias y colaboraciones de tecnologías ambientales en América Latina y El Caribe
Authors: Espinoza-Mina Marcos-Antonio , Colina-Vargas Alejandra-Mercedes
Published: December 2024

El presente estudio analiza el estado actual de la investigación en tecnologías ambientales y ecoinnovación en América Latina y el Caribe, utilizando un enfoque bibliométrico que examina la colaboración internacional, la productividad científica y el impacto de las publicaciones. La investigación se desarrolló en tres etapas clave. En primer lugar, se recopiló información bibliográfica exhaustiva a partir de las bases de datos Web of Science y Scopus, asegurando una cobertura completa y actualizada. Posteriormente, se realizó un análisis bibliométrico avanzado empleando herramientas en R, como Bibliometrix y técnicas de Machine Learning (LDA), para identificar tendencias, actores clave y patrones de productividad. Finalmente, se visualizó la información mediante VOSviewer, lo que facilitó la interpretación de las dinámicas de colaboración y las áreas de investigación más relevantes. Los hallazgos principales destacan un crecimiento sostenido en la producción científica, liderado por Brasil, así como diferencias significativas en la colaboración internacional e impacto de las investigaciones en la región. Estas conclusiones ofrecen un marco integral para diseñar estrategias que fortalezcan las capacidades investigativas y promuevan el desarrollo de soluciones sostenibles en América Latina y el Caribe.
Análisis del financiamiento climático internacional para la transición energética del Ecuador
Authors: Vargas-Maldonado Diego Esteban , Pinos-Luzuriaga Luis Gabriel
Published: December 2024

La mitigación y adaptación al cambio climático exigen que los países en desarrollo transiten hacia una matriz energética moderna y sostenible. Este cambio requiere una investigación exhaustiva sobre los factores que facilitan la efectiva implementación del financiamiento externo destinado al desarrollo de infraestructuras de energía renovable. A pesar de que los estudios existentes sobre los efectos del financiamiento externo se centran principalmente en sectores como la educación, la salud y la gestión de residuos, este estudio adopta un enfoque distinto al analizar el impacto del financiamiento en el sector de la energía renovable. Específicamente, se examina el financiamiento destinado a la ejecución de proyectos de energía renovable que emplean diversas tecnologías. A través del análisis estadístico de los datos correspondientes al periodo de años 2016-2022, se observó que el financiamiento está débilmente correlacionado con el aumento de la capacidad instalada de tecnologías de energía renovable. No obstante, se encontró que el financiamiento externo destinado al desarrollo de políticas energéticas está estrechamente relacionado con la implementación de este tipo de tecnologías.
Minecraft como herramienta educativa: desarrollo de un servidor para la enseñanza del álgebra de Boole
Authors: Bermudes-Mora Jean Píero , Naranjo-Sánchez Bertha Alice
Published: December 2024

La gamificación ha demostrado ser un método educativo eficaz, capaz de hacer el aprendizaje más dinámico y atractivo. En este contexto, Minecraft, un popular juego de construcción, se ha convertido en una herramienta innovadora en la enseñanza. Este artículo presenta la creación de un servidor en Minecraft enfocado en la enseñanza del álgebra de Boole, un tema fundamental en la lógica matemática y las ciencias computacionales. Se desarrolló un servidor en la plataforma Aternos, integrando plugins como AlonsoLeaderboards para motivar a los estudiantes mediante actividades interactivas y competitivas. Los estudiantes de computación de la Universidad Politécnica Salesiana participaron en actividades diseñadas para enseñar los conceptos básicos del álgebra de Boole, como la construcción y manipulación de puertas lógicas y circuitos. El entorno permitió la colaboración entre estudiantes, quienes resolvieron problemas y compartieron conocimientos, fomentando el aprendizaje y la competencia amistosa. El servidor ofreció flexibilidad, ajustando las actividades a diferentes niveles de competencia y ritmos de aprendizaje. Las encuestas cualitativas y cuantitativas realizadas a los estudiantes mostraron resultados preliminares muy positivos, con alta participación y entusiasmo. Los comentarios destacaron la facilidad de uso del servidor y la efectividad de las actividades para comprender el álgebra de Boole. El servidor educativo de Minecraft ofreció una forma innovadora y eficaz de enseñar álgebra de Boole, involucrando activamente a los estudiantes y mejorando su comprensión de conceptos matemáticos y lógicos.
A Study of the Inhibition Capacity of a Novel Ilex guayusa Green Extract for Preventing Corrosion in Mild Steel Exposed to Different Conditions
Authors: Hidalgo Juan , Hidalgo Luis , Serrano Carlos , Punina Diego , Rea Erik , Ilbay Marlon , Vilasó-Cadre Javier E. , Reyes-Domínguez Ivan A.
Published: December 2024

Corrosion is a critical industrial problem. To solve this problem, the present research analyzed the influence of corrosive media on the efficiency of a guayusa inhibitor. Therefore, guayusa extract was obtained, and five groups of ASTMS A36 steel test tubes were prepared, each with variable extract concentrations (200 ppm, 400 ppm, 600 ppm, 800 ppm, and 1000 ppm) that were exposed to different corrosive media (5% NaCl, 5% NaCl + acetic acid, 1% HNO3, and 10% HNO3). The results obtained were compared to determine the percentage efficiency of the inhibitor in each of the corrosive media. This study provides a detailed understanding of how the corrosive environment influences the effectiveness of a guayusa inhibitor, which is used as a green inhibitor for the first time, allowing its viability and performance to be assessed under various conditions.
Corrosion of Buried Pipelines by Stray Current in Electrified Railways: Mechanism, Influencing Factors, and Protection
Authors: Liang Haiming , Wu Yuxi , Han Bin , Lin Nan , Wang Junqiang , Zhang Zheng , Guo Yanbao
Published: December 2024

Metal pipes are often interfered with by currents of irregular frequency and wavelength. This is called stray current interference. The corrosion of metal pipes caused by stray current interference is one of the many factors contributing to their deterioration. Pipeline corrosion and leakage caused by stray currents can significantly impact the safety, environment, and economy of the surrounding areas. Over the past few years, stray current interference has become one of the research hotspots in the petrochemical and natural gas transportation industries. This review article investigates accident cases caused by stray currents and compares the corrosion mechanisms of DC stray currents and AC stray currents, analyzes the influence of pipeline material, environment, voltage and current, stress, and other factors on corrosion, and puts forward corrosion protection measures, such as cathodic protection, coating technology, internal corrosion control, and means of detecting stray current corrosion. Finally, it provides an outlook on future research directions on corrosion protection against stray currents.
The Use of Biologic and Targeted Synthetic Disease-Modifying Drugs in the Treatment of Psoriatic Arthritis
Authors: Ali Rafal , Lau Arthur , Brent Lawrence H.
Published: December 2024

Psoriatic arthritis (PsA) is a systemic inflammatory condition affecting the joints, spine, and entheses, as well as the skin and nails. It affects about 6–42% of patients with psoriasis (PsO), with a prevalence of 1–2 per 1000. PsA can precede skin disease in 7–14% of patients. Different clinical domains may be involved, including psoriatic skin disease, peripheral arthritis, axial involvement, dactylitis, enthesitis, and nail disease. Psoriatic arthritis is a complex, systemic inflammatory condition. While the exact mechanisms underlying PsA are not fully understood, it is believed that the disease arises from a combination of genetic predisposition and environmental triggers that lead to inflammatory processes in both the skin and joints. The treatment approach for PsA focuses on controlling inflammation, improving symptoms, and preventing joint damage. Early initiation of treatment is crucial for achieving better functional outcomes. Various therapeutic agents are available that target different inflammatory pathways. In this review article, various treatment options, focusing on biologic and targeted synthetic disease-modifying antirheumatic drugs, are discussed.
Editorial for the Special Issue ‘Molecular Mechanisms of Leukemia’
Authors: An Jungeun , Ko Myunggon
Published: December 2024

Leukemia encompasses a diverse and intricate group of hematological malignancies that arise from hematopoietic stem and progenitors (HSPCs) in the bone marrow [...]
Do Salivary Cullin7 Gene Expression and Protein Levels Provide Advantages over Plasma Levels in Diagnosing Breast Cancer?
Authors: Tilgen Yasasever Ceren , Duranyıldız Derya , Bademler Süleyman , Oğuz Soydinç Hilal
Published: December 2024

In addition to the tumor suppressor role of Cullin 7 (Cul7), one of the proteins belonging to the Cullin (Cul) family, studies have also suggested that Cul7 may act as an oncogene under certain conditions. The role of the Cul7 molecule in breast cancer is still unclear, and understanding its function could have significant implications for identifying novel therapeutic targets or improving diagnostic strategies in breast cancer management. In this study, the levels of the Cul7 molecule in plasma and noninvasive material saliva were investigated, and its possibility as a marker for breast cancer was discussed. Protein levels of blood and saliva samples taken from breast cancer patients and a healthy control group were measured by the ELISA (Enzyme-Linked Immunosorbent Assay) method. Gene expression levels between the two groups were analyzed by the qPCR (quantitative Polymerase Chain Reaction) method. In our study, Cul7 mRNA and protein expression levels were examined in 60 breast cancer patients and 20 healthy female controls, and a statistically insignificant difference was found between the patient and control groups in both plasma and saliva samples (p > 0.05). No correlation was found between the clinical characteristics of the patients and plasma and saliva Cul7 gene expression and protein levels (p > 0.05). Considering the possibility of Cul7 being a biomarker at the protein and mRNA levels, plasma is thought to be a better study material for Cul7. Our findings suggest that in the context of a study on salivary material, the expression of Cul7 at the mRNA level may have better potential utility as a biomarker.
The Association of Cell-Free LncH19 and miR-29b Expression with the PI3K/AKT/HIF-1/VEGF Pathway in Patients with Diabetic Nephropathy: In Silico Prediction and Clinical Validation
Authors: Abd El-Fadeal Noha M. , Sultan Basma Osman , AbdelMaogood Asmaa K. K. , Al Ageeli Essam , Mekhamer Fatma Tohamy , Rohayem Sherihan , Shahidy Ahmed , Hosny Nora , Fawzy Manal S. , Ismail Mohammed M. , Abdellatif Hidi A. A.
Published: December 2024

Diabetic nephropathy (DN) affects about one-third of patients with diabetes and can lead to end-stage renal disease despite numerous trials aimed at improving diabetic management. Non-coding RNAs (ncRNAs) represent a new frontier in DN research, as increasing evidence suggests their involvement in the occurrence and progression of DN. A growing body of evidence suggests that long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) in DN signaling pathways might serve as novel biomarkers or therapeutic targets, although this remains to be fully explored. Our study included four groups, each comprising 40 adults: patients with diabetes (a) without albuminuria, (b) with microalbuminuria, (c) with macroalbuminuria, and a control group. All participants underwent history-taking and clinicolaboratory assessments, including CBC, fasting blood sugar, HbA1c, lipid profile, liver function, and renal function tests. Additionally, expressions of lncRNA H19, miRNA-29b, PI3K, AKT, mTOR, and HIF-1 alpha were assessed using qPCR. lncRNA H19 expression was upregulated in patients with albuminuria compared to the DM group. Furthermore, based on qPCR, the level of lncRNA H19 was negatively correlated with eGFR and miRNA-29b expression. On the other hand, the lncRNA H19 level was positively correlated with PI3K, AKT, mTOR, and HIF-1 alpha levels. We also found that the lncH19/miRNA-29b ratio was significantly increased in patients with DN and macroalbuminuria. In conclusion, lncRNA H19 was upregulated in patients with DN, and this increase was associated with miRNA29b downregulation. Therefore, our study suggests a novel link between the lncH19/miRNA-29b ratio and DN, indicating that it might serve as a potential biomarker for the dynamic monitoring of DN.
Impact Assessment of Beach Nourishment on Hot Spring Groundwater on Ibusuki Port Coast
Authors: Ono Nobuyuki , Miyake Takatomo , Kasamo Kenki , Ishimoto Kenji , Asano Toshiyuki
Published: December 2024

This study investigated the thermo-hydrodynamic groundwater environment of a sandy beach where a unique sand bathing method attracts many visitors. The discussed temperatures covered a wide range, from the normal to the boiling temperature of water. We, at first, examined the feasible conditions for sand bathing and found that the volumetric water content was the crucial factor. Comprehensive field observations were implemented to elucidate two physical quantities: the groundwater flow and the temperature in the sand layer. The latter one was found to be governed by the groundwater level and tidal fluctuations. The characteristics obtained were found to be consistent with the feasible conditions in the landward area. While in the offshore area, the temperature was proved to have suddenly dropped. These results strongly suggest that the underground heat source is distributed in specific spots. A numerical model to describe the groundwater flows and the heat transfer mechanism was developed based on a saturated/unsaturated seepage flow model. The computational results were found to adequately reproduce the observed spatial temperature distribution. The reproduction ability of the model was found to be limited in terms of temporal variations; it was good for the groundwater level, but not for the temperature in the sand.
Heat Transport Hysteresis Generated Through Frequency Switching of a Time-Dependent Temperature Gradient
Authors: Chen Renai , Craven Galen T.
Published: December 2024

A stochastic energetics framework is applied to examine how periodically shifting the frequency of a time-dependent oscillating temperature gradient affects heat transport in a nanoscale molecular model. We specifically examine the effects that frequency switching, i.e., instantaneously changing the oscillation frequency of the temperature gradient, has on the shape of the heat transport hysteresis curves generated by a particle connected to two thermal baths, each with a temperature that is oscillating in time. Analytical expressions are derived for the energy fluxes in/out of the system and the baths, with excellent agreement observed between the analytical expressions and the results from nonequilibrium molecular dynamics simulations. We find that the shape of the heat transport hysteresis curves can be significantly altered by shifting the frequency between fast and slow oscillation regimes. We also observe the emergence of features in the hysteresis curves such as pinched loops and complex multi-loop patterns due to the frequency shifting. The presented results have implications in the design of thermal neuromorphic devices such as thermal memristors and thermal memcapacitors.
The Geriatric Trauma Patient: Common Comorbidities Lead to Higher Mortality—The Single Center Experience of a German Level I University Trauma Center
Authors: Miksch Rainer Christoph , Talwar Sonja , Gassner Christoph , Böcker Wolfgang , Holzapfel Boris Michael , Gilbert Fabian
Published: December 2024

Background: Geriatric trauma patients often present with multiple comorbidities, which can complicate their treatment and impact outcomes. This study examines the effect of common pre-existing comorbidities on mortality and recovery in polytrauma patients, comparing them to polytrauma patients without these conditions. Methods: We conducted a retrospective cohort study of patients with an Injury Severity Score (ISS) ≥ 16, admitted to a Level I trauma center between 2006 and 2019. A total of 315 patients were analyzed, including 235 with at least one comorbidity (COPD, type II diabetes, or anticoagulation due to atrial fibrillation) and 80 patients without any comorbidities, who served as the control group. Results: While comorbid patients had similar ISS scores compared to controls, they experienced significantly longer hospital and ICU stays. No significant difference in overall survival was found between the groups. However, patients with comorbidities were more prone to secondary complications, such as sepsis and thrombosis. Conclusions: The presence of common comorbidities, while associated with longer recovery times and increased complication rates, did not significantly impact mortality in polytrauma patients.
Design of Hybrid Topology Wireless Sensor Network Nodes Based on ZigBee Protocol
Authors: Lv Haorun , Liu Lina , Li Juanjuan , Xu Yi , Sheng Yan
Published: December 2024

With the rapid development of wireless communication and embedded technology, wireless sensor networks (WSNs) have become an important part of the Internet of Things (IoT). Despite these advances, many current WSNs are still limited to a single topology and point-to-point communication, which greatly hinders communication efficiency and scalability and poses additional challenges for our communication networks. In this study, we propose a multi-node hybrid-topology sensor network that uses the CC2530 chip and ZigBee technology to overcome these problems. Single-structure wireless sensor networks have problems such as poor scalability, and damage to a terminal can cause the entire network to collapse. To solve these problems, we propose a new hybrid-topology model with the advantages of scalability and system stability. It also has a self-regulating mechanism, so that if a router is damaged, the terminal can be converted to a router to prevent the network from collapsing. We propose a new hybrid topology model using ZigBee wireless communication technology and the CC2530 chip. The aim of this research is to improve communication efficiency, reduce costs, and achieve high accuracy while meeting energy-saving requirements and measurement needs in a variety of environments. Finally, we studied the model’s scalability to further illustrate its superiority in the development of wireless sensor networks. The experimental results show that this method not only improves communication efficiency but also achieves flexibility.
Impact of Outlet Pressure on Internal Flow Characteristics and Energy Loss in Pump-Turbine System Under Pump Operation Conditions
Authors: Han Tianding , Li Qifei , Feng Licheng , Chen Xiangyu , Zhou Feng , Li Zhenggui
Published: December 2024

During pump operation, the pump-turbine system experiences unstable fluctuations in outlet pressure, which induces turbulence and additional energy losses. Understanding the impact of outlet pressure variations on the internal flow field is crucial for the further development of turbine units. This study employs numerical methods to systematically analyze the effects of outlet pressure changes on flow characteristics and energy loss. The results show that a decrease in outlet pressure to P0.9BEP significantly increases entropy production in the double-row stay guide vane region, primarily due to flow separation and vortex formation. In the flow passage, sealing gap, and tailpipe regions, entropy production is mainly driven by wall effects, while secondary flows influence the spiral case. The vortex distribution in the double-row stay guide vane is complex, with different variation trends observed in the active and fixed guide vane regions. Outlet pressure changes affect the interaction between the flow passage blades and the fluid, leading to localized flow separation and directly impacting energy loss in downstream components. Additionally, the rate of change in outlet pressure significantly influences vortex generation and dissipation. This research provides new theoretical insights and research directions for performance optimization and energy loss control in pump-turbine systems.
Enhancing Rooftop Photovoltaic Segmentation Using Spatial Feature Reconstruction and Multi-Scale Feature Aggregation
Authors: Xiao Yu , Lin Long , Ma Jun , Bi Maoqiang
Published: December 2024

Amidst the dual challenges of energy shortages and global warming, photovoltaic (PV) power generation has emerged as a critical technology due to its efficient utilization of solar energy. Rooftops, as underutilized spaces, are ideal locations for installing solar panels, avoiding the need for additional land. However, the accurate and generalized segmentation of large-scale PV panel images remains a technical challenge, primarily due to varying image resolutions, large image scales, and the significant imbalance between foreground and background categories. To address these challenges, this paper proposes a novel model based on the Res2Net architecture, an enhanced version of the classic ResNet optimized for multi-scale feature extraction. The model integrates Spatial Feature Reconstruction and multi-scale feature aggregation modules, enabling effective extraction of multi-scale data features and precise reconstruction of spatial features. These improvements are particularly designed to handle the small proportion of PV panels in images, effectively distinguishing target features from redundant ones and improving recognition accuracy. Comparative experiments conducted on a publicly available rooftop PV dataset demonstrate that the proposed method achieves superior performance compared to mainstream techniques, showcasing its effectiveness in precise PV panel segmentation.
Assessment of Risk Factors of Critical Points in Forest Firefighting in Difficult-to-Access Sites
Authors: Tomašková Marianna , Pokorný Jiří , Krajňák Jozef , Balážiková Michaela
Published: December 2024

The paper addresses the issue of forest fires and critical points in activities related to extinguishing and transport of extinguishing agent to the fire site. With the increasing incidence of forest fires, there are also serious implications for the environment, ecosystems and communities. The relevance of this topic is indisputable, as forest fires are becoming more frequent and intense, with a consequent need for systematic analysis. In this paper, critical sites are identified and assessed, and a description of the equipment used to extinguish a particular fire is provided, with a description of the firefighting strategy in a difficult-to-access site in forest firefighting. This paper shows the effective solution in extinguishing forest fires and then in the design of measures to minimize this risk. We have also assessed the risk activities in this paper. The intent of this article is to show how to effectively extinguish a forest fire. The knowledge gained and recommendations made are aimed at improving firefighter preparedness, techniques and tactics to extinguish forest fires.
Effects of Artificial Compound Feed for Live Fish Feed on Growth Performance, Nutrient Composition, Digestive Performance, and Gut Microbiota of Giant Salamander (Andrias davidianus)
Authors: Fan Hongxiang , Huang Peiying , Zhu Jiayi , Li Jiamin , Jian Shaoqing , Hou Jiahao , Wang Ziyu , Li Linjie , Zhao Daxian
Published: December 2024

This study explored the effects of replacing live fish feed with artificial compound feed on the growth performance, nutritional composition, digestive performance, and gut microbiota of Chinese giant salamander (Andrias davidianus). The experiment was divided into three groups, each with three biological replicates. The salamander juveniles were fed artificial compound feed (S), live fish (H), and frozen fish (D) for 184 days. Results showed no significant differences in growth performance among the three groups (p > 0.05). The water content in the S group was significantly higher than that in the H group (p < 0.05), and the crude fat content was slightly higher, whereas other nutritional components showed no significant differences (p > 0.05). The analysis of amino acid composition found no significant differences among the three groups of Chinese giant salamanders (p > 0.05). The analysis of fatty acid composition revealed that the feed group had significantly lower levels of polyunsaturated fatty acids compared with the other two groups (p < 0.05), and significantly higher levels of saturated fatty acids (p < 0.05). There were no significant changes in digestive enzyme activity among the three salamander groups (p > 0.05). There were also no significant differences in the remaining antioxidant indicators in the intestine and liver among the three groups of salamanders (p > 0.05). The S group had significantly higher Pielou_e and Shannon indices (p < 0.05), thereby indicating a greater diversity and evenness of the gut microbiota. In conclusion, replacing live feed with artificial compound feed does not affect the growth performance, nutritional composition, antioxidant capacity, and digestive function of Chinese giant salamander juveniles. Moreover, it enhances the diversity and richness of the gut microbiota, providing effective data to support the development of artificial feeds for giant salamanders.
Tourists’ Views on Sustainable Heritage Management in Porto, Portugal: Balancing Heritage Preservation and Tourism
Authors: Ramazanova Makhabbat , Silva Fátima Matos , Vaz de Freitas Isabel
Published: December 2024

This research explores the perceptions of tourists regarding the state and sustainable management of tangible cultural heritage in the city of Porto (Portugal), the destination recognised for its historical and cultural heritage. Porto attracts a growing number of tourists due to its rich heritage, encompassing cultural, architectural, and scenic elements. This rising demand necessitates sustainable management practices to protect the city’s heritage and ensure long-term sustainability. With the increase in tourism and the need to preserve cultural and environmental resources, sustainable management becomes essential to balance economic development and heritage conservation. The study’s main objective is to analyse tourists’ perspectives on the sustainable management of the cultural heritage of the city of Porto. It focuses on analysing current tourism management practices and calls for new strategies to promote sustainability. Structured questionnaires were distributed to a random sample of tourists in strategic locations between January and April 2023, obtaining quantitative data. The sample consists of 264 respondents. The results revealed four main factors, showing that most respondents show a high level of awareness and appreciation of sustainability and its relevance for heritage conservation. Regarding tourism, the majority agree that it contributes positively to the conservation and restoration of the city’s heritage.
Carbon Dots: New Rising Stars in the Carbon Family for Diagnosis and Biomedical Applications
Authors: Ullah Muneeb , Awan Uzma Azeem , Ali Haider , Wahab Abdul , Khan Shahid Ullah , Naeem Muhammad , Ruslin Muhammad , Mustopa Apon Zaenal , Hasan Nurhasni
Published: December 2024

Carbon dots (CDs) are a class of carbon-based nanomaterials undergoing rapid development with broad potential applications across diverse biomedical fields. These materials are highly attractive for diagnostics, therapeutics, and nanomedicine due to their remarkable optical and physicochemical properties, including photoluminescence, biocompatibility, and aqueous dispersibility. CDs can be synthesized using various techniques, ranging from top-down to bottom-up approaches. Among these, biogenic synthesis, utilizing natural sources and waste materials, presents an eco-friendly and sustainable alternative. CDs have exhibited considerable promise in diagnostics, especially with bioimaging and biosensing, providing both high sensitivity and precise identification. CDs are presently being investigated in the pharmaceutical sector for their potential applications in cancer and infection treatment, as well as in photodynamic and thermal therapies. The advancement of CD composites, through enhanced functionality and broader application, facilitates novel research in nanomedicine. This article highlights the advantages of CDs, focusing on their structural properties, classification, and versatility in synthesis methods. Furthermore, the safety and toxicity profiles of CDs are critically analyzed. In conclusion, the innocuity, adaptability, and multifunctionality of CDs position them as a cornerstone in the advancement of nanotechnology and biomedical applications. With their broad applicability and promising potential, CDs stand poised to drive significant innovation across diagnostics, therapeutics, and other domains, heralding a new era in nanomedicine and sustainable material development.
Comparative Analysis of Temperature and Stress Simulations in Mass Concrete for Sluice Gate Structures Based on Chinese and American Standards
Authors: Zhang Jiaming , Zhou Dan , He Xiangyu , Hu Xing , Qiang Sheng
Published: December 2024

Temperature-induced cracks during the construction of large concrete structures, such as water gates and bridges, caused by hydration heat, pose a serious threat to structural safety and reliability. To address this, various countries have developed temperature control standards and guidelines for mass concrete structures, providing design direction and evaluation criteria. China and the United States (U.S.) are leaders in the field of temperature control for mass concrete structures, with significant influence in international projects. The study of the differences in temperature control results between the two countries’ standards not only helps to understand the impact of different regulations on temperature control design but also provides more design options for multinational projects. This study uses ABAQUS software (version 2023)to establish a finite element model of a water gate and employs secondary development of ABAQUS to simulate the temperature and stress fields under both Chinese and U.S. standards. The results indicate that the overall temperature and stress distributions of the structure are similar under both standards. The calculation results for internal and surface characteristic points show that the maximum temperature predicted by the Chinese standard is slightly higher than that of the U.S. standard, with a difference of no more than 1.7 °C. However, the maximum tensile stress calculated under the Chinese standard is lower than that of the U.S. standard, with internal stress differences not exceeding 0.23 MPa and surface stress differences not exceeding 0.56 MPa. This study provides a direct comparison of the temperature control results between the two standards, offering valuable insights for international projects to balance cost and safety, while also providing empirical evidence for optimizing national standards.