bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring Sustainable Tourism Through Virtual Travel: Generation Z’s Perspectives
Authors: Mavrin Igor , Turșie Corina , Lupșa Matichescu Marius
Published: December 2024

In the contemporary travel landscape, virtual reality (VR) integration has ushered in a novel paradigm, particularly influential among Generation Z. This demographic, inherently familiar with digital technologies, increasingly gravitates towards virtual tourism, an eco-friendly and resource-conscious alternative to traditional travel. Virtual tourism, the alternative to actual travel, offers immersive experiences that are both accessible and sustainable, reducing the environmental impact associated with conventional tourism. This paper examines how virtual travel could serve as a sustainable travel practice, crucial for preserving cultural and natural resources while providing meaningful experiences. The appeal of virtual tourism lies in its ability to deliver diverse and enriched experiences without the physical and environmental costs of travel. This form of tourism not only aids in conserving sensitive ecosystems and heritage sites but also offers inclusivity for individuals unable to travel due to economic or physical barriers. Furthermore, virtual tourism’s potential to simulate endangered or inaccessible sites can play a pivotal role in educational initiatives and global awareness. This study explores the motivations behind Generation Z’s engagement with virtual travel through detailed analysis and empirical data. It discusses how virtual tourism could be strategically developed to support sustainable tourism practices. This approach underscores a shift towards more responsible and conscious travel behaviours aligned with the sustainable values of Generation Z. The purpose of this paper is to detect the main trends in the development of virtual tourism as the new form of travel, with special emphasis on Generation Z’s preferences in future virtual travel as a substitute for actual physical travel.
Extraction Methods, Encapsulation Techniques, and Health Benefits of Astaxanthin
Authors: Panagiotakopoulos Ioannis , Nasopoulou Constantina
Published: December 2024

Astaxanthin, a red carotenoid pigment found in marine species like microalgae, shrimp, and salmon, is a powerful bioactive molecule with several health effects. Astaxanthin, despite its potential, is highly vulnerable to degradation from external elements, including light, oxygen, and temperature, requiring meticulous extraction and stabilization methods. Astaxanthin can be extracted using solvent extraction, ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE), supercritical fluid extraction (SFE), and enzymatic extraction. Additionally, encapsulation methods that improve the stability and bioavailability of astaxanthin are examined, highlighting their efficacy in maintaining the chemical in unfavorable conditions. This review discusses the extensive range of astaxanthin’s medicinal capabilities, encompassing its antioxidant, anticancer, antidiabetic, neuroprotective, and skin-protective activities. This research seeks to emphasize the significance of astaxanthin as a functional bioactive component with substantial potential in nutraceutical and pharmaceutical applications by describing the extraction and encapsulation techniques and their health-promoting attributes.
Participatory Urban Planning for Social Sustainability: A Combination of the Analytic Hierarchy Process, with Strengths, Weaknesses, Opportunities, Threats Analysis, and the Technique for Order Preference by Similarity to Ideal Solution (A’WOT-TOPSIS)
Authors: Akbulut Basar Ayse
Published: December 2024

This study explores the role of participation in achieving social sustainability in urban environments. As uncertainties about the future grow, the need for methods that ensure the representation of diverse stakeholders becomes essential. The Participatory A’WOT-TOPSIS Method is introduced as an effective approach for managing multi-actor and multi-decision-making processes. This Multi-Criteria Decision-Making (MCDM) method combines SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis with the Analytic Hierarchy Process (AHP) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). An empirical application was conducted to assess various urban scenarios through a strategic planning process involving five distinct stakeholder groups. Using an inductive approach, one of three scenarios was selected. Findings demonstrate that the proposed method enhances transparency, ensures objectivity, reduces inconsistencies in stakeholder decision-making, and promotes collaborative representation. However, increasing the number of decision-makers and decisions may lead to greater workload and time demands for those implementing the method. This approach lays the groundwork for future research incorporating elements like representation, belonging, and identity into participatory processes to foster social sustainability in urban areas.
Improper Integrals of Type II—A New Look and Some Surprising Facts
Authors: Ludew Jakub Jan , Różański Michał , Tomiczek Wiktor , Smuda Adrian , Wituła Roman
Published: December 2024

The goal of this work is to present a new theoretical and simultaneously practical approach to the conception of improper integrals of type II and, consequently, to improper integrals of type I. Seven distinct definitions of improper integrals of type II are presented, each illustrated by suitable examples. Among them, particularly important are those defined on nets composed of sets symmetric with respect to points belonging to a given finite family of points. Connections between improper integrals of type II defined here are described in two main theorems. It should be emphasized that all definitions of improper integrals presented here are special cases of a very general definition of improper integrals on non-compact sets, which is presented at the end of this work. This definition is inspired by a concept introduced by Maurin.
A Novel Approach for Multi-Criteria Decision-Making Problem with Linguistic q-Rung Orthopair Fuzzy Attribute Weight Information
Authors: Shi Minghua , Zhang Jinbo
Published: December 2024

Linguistic q-Rung orthopair fuzzy set is a new extension of the linguistic Pythagorean fuzzy set, which effectively represents the fuzzy and uncertain decision-making information based on qualitative modeling. However, its operational rules are unable to process pure linguistic exponential calculations, in which the exponents are represented using linguistic q-Rung orthopair fuzzy values and the bases are represented as linguistic terms or interval linguistic numbers. This greatly restricts its application in decision making under complex environments. As the complement of the existing linguistic q-Rung orthopair fuzzy operational rules, this paper defines linguistic q-Rung orthopair fuzzy calculation rules, including division, subtraction, and exponent operations. Based on theorem-based proofs, the relevant properties of the calculation rules have been analyzed, such as commutative law, distributive law, symmetry, and so on. Moreover, in order to facilitate the application of linguistic q-Rung orthopair fuzzy theory, this paper introduces the concept of dual linguistic q-Rung orthopair fuzzy value. Building on this foundation, a series of weighted aggregation operators for the calculations involving linguistic q-Rung orthopair fuzzy values and dual linguistic q-Rung orthopair fuzzy values have been designed. In conclusion, a novel pure linguistic multi criteria decision-making methodology is introduced in this work. The validity and utility of the proposed method are demonstrated via a real-world application in the decision process of energy resource exploitation.
How Does the Digital Innovation Ecosystem Enable Green Regional Development? A Dynamic QCA Study in China
Authors: Li Lvcheng , Zeng Yuanjie , Xia De
Published: December 2024

The impact of digital empowerment on green innovation is increasingly evident, enabling various subjects to improve the integration of innovation elements and enhance innovation efficacy across a broader temporal and spatial scope. A comprehensive examination of the mechanisms that underlie this process is required. This paper constructs the ‘elements-subjects-environments’ research framework of digital innovation ecosystems, collecting data from 30 provinces in China from 2017 to 2021 and using green total factor productivity (GTFP) to evaluate the level of green regional development. In this study, the dynamic qualitative comparative analysis (QCA) method is employed to analyze the intricate causal mechanisms and configurations of green regional development that are driven by digital innovation ecosystems from both temporal and spatial perspectives. The results show that: (1) green regional development requires the interaction of multiple elements, subjects, and the environment, and a single condition does not constitute a necessary condition; (2) there are four pathways with different configurations for high-level green development: data elements-driven enterprise application innovation, data elements-driven enterprise-user co-creation, data elements-driven multi-collaborative innovation, and digital environment-driven university basic innovation; (3) the temporal and spatial dimensions of China’s green regional development pathways are heterogeneous: the significance of data elements in fostering green regional development is increasing; the multi-collaborative innovation configuration is facilitating the green development of the eastern and central regions, whereas the western and northeastern regions are progressing at a relatively slow pace. This study provides theoretical and practical insights to promote the integration of digital innovation and green development.
Hybrid Artificial-Intelligence-Based System for Unmanned Aerial Vehicle Detection, Localization, and Tracking Using Software-Defined Radio and Computer Vision Techniques
Authors: López-Muñoz Pablo , San Frutos Luis Gimeno , Abarca Christian , Alegre Francisco José , Calle Jose Luis , Monserrat Jose F.
Published: December 2024

The proliferation of drones in civilian environments has raised growing concerns about their misuse, highlighting the need to develop efficient detection systems to protect public and private spaces. This article presents a hybrid approach for UAV detection that combines two artificial-intelligence-based methods to improve system accuracy. The first method uses a software-defined radio (SDR) to analyze the radio spectrum, employing autoencoders to detect drone control signals and identify the presence of these devices. The second method is a computer vision module consisting of fixed cameras and a PTZ camera, which uses the YOLOv10 object detection algorithm to identify UAVs in real time from video sequences. Additionally, this module integrates a localization and tracking algorithm, allowing the tracking of the intruding UAV’s position. Experimental results demonstrate high detection accuracy, a significant reduction in false positives for both methods, and remarkable effectiveness in UAV localization and tracking with the PTZ camera. These findings position the proposed system as a promising solution for security applications.
Studies on the Virucidal Effects of UV-C of 233 nm and 275 nm Wavelengths
Authors: Kohs Jessica , Lichtenthäler Tom , Gouma Carolyn , Cho Hyun Kyong , Reith Andreas , Kramer Axel , Reiche Sven , Zwicker Paula
Published: December 2024

Among the physical decontamination methods, treatment with ultraviolet (UV) radiation is a suitable means of preventing viral infections. Mercury vapor lamps (254 nm) used for room decontamination are potentially damaging to human skin (radiation) and harmful to the environment (mercury). Therefore, other UV-C wavelengths (100–280 nm) may be effective for virus inactivation on skin without damaging it, e.g., far-UV-C radiation with a wavelength of 233 nm, which is absorbed in the outer layer of the skin and thus does not reach the deeper layers of the skin. For room disinfection, 275 nm UV-C LED lamps could be a more environmentally friendly alternative, since toxic mercury is avoided. A carrier test using multiple viruses was used to determine the TCID50/mL value on stainless steel, PVC, and glass carriers. In addition to the inactivation kinetics (233 nm), the necessary UV-C dose for 4 lg inactivation (275 nm) was investigated. The impact of irradiance on the inactivation efficacy was also assessed. The inactivation of the viruses was a function of the radiation dose. UV-C-radiation at 233 nm (80 mJ/cm2) inactivated from 1.49 ± 0.08 to 4.28 ± 0.18 lg depending on the virus used. To achieve a 4 lg inactivation (275 nm) for enveloped viruses, doses of up to 70 mJ/cm2 (SuHV-1) were sufficient. For non-enveloped viruses, a maximum dose of 600 mJ/cm2 (MS2) was necessary. Enveloped viruses were inactivated with lower doses compared to non-enveloped viruses. Higher radiation doses were required for inactivation at 275 nm in comparison to 254 nm. A more environmentally friendly alternative to mercury vapor lamps is available with 275 nm LED emitters. Radiation at 233 nm could serve as an additional prophylactic or therapeutic measure for virus inactivation in direct contact with human skin.
Immune Response Against SARS-CoV-2
Authors: Stufano Angela , Schino Valentina , Lucchese Guglielmo
Published: December 2024

The immune response to SARS-CoV-2 infection is highly complex, involving a dynamic interplay between the innate and adaptive immune systems [...]
Cell-Cultured Influenza Vaccine Enhances IFN-γ+ T Cell and Memory T Cell Responses Following A/Victoria/2570/2019 IVR-215 (A/H1N1) Infection
Authors: Kang Kyu-Ri , Kim Pan-Kyeom , Jo Kyung-Min , Jang Jin-Young , Kang Hyun Mi , Kang Jin-Han
Published: December 2024

Background: Influenza remains a significant public health challenge, with vaccination being a substantial way to prevent it. Cell-cultured influenza vaccines have emerged to improve on the drawbacks of egg-based vaccines, but there are few studies focusing on T cell immunity with both types of vaccines. Therefore, we studied the following 2022–2023 seasonal influenza vaccines with a standard dose and high dose: cell-based (C_sd and C_hd) and egg-based (E_sd and E_hd) vaccines. Methods: Along with a saline control group, C_sd, C_hd, E_sd, and E_hd vaccines were administered to BALB/c mice, followed by a challenge with the A/Victoria/2570/2019 (H1N1) strain. Results: After the challenge, four out of five mice in the saline group died by day 7 post-infection (P.I.). None of the vaccinated groups experienced over 20% weight loss or any deaths. On day 7 P.I., the lung viral load in the saline group (mean log value of 4.17) was higher than that in the vaccinated groups, with the C_sd group showing the lowest viral load (mean log value of 3.47). The C_sd group showed a significantly high response in macrophage 1 (M1), IFN-γ+ T cells, and tissue-resident memory (TRM) T cells compared with the E_sd group on day 2 P.I. These M1, IFN-γ+ T cells, and TRM cells showed similar trends (p < 0.01). In terms of humoral immunity, only the E_hd group showed HAI titers above 40 for all four strains before and after the challenge. Conclusions: The high levels of T cells in the cell-cultured vaccines suggest, pending further real-world research, that these vaccines may offer advantages.
Seroprevalence of Antibodies to Filoviruses with Outbreak Potential in Sub-Saharan Africa: A Systematic Review to Inform Vaccine Development and Deployment
Authors: Semancik Christopher S. , Whitworth Hilary S. , Price Matt A. , Yun Heejin , Postler Thomas S. , Zaric Marija , Kilianski Andrew , Cooper Christopher L. , Kuteesa Monica , Talasila Sandhya , Malkevich Nina , Gupta Swati B. , Francis Suzanna C.
Published: December 2024

Background/Objectives: Orthoebolaviruses and orthomarburgviruses are filoviruses that can cause viral hemorrhagic fever and significant morbidity and mortality in humans. The evaluation and deployment of vaccines to prevent and control Ebola and Marburg outbreaks must be informed by an understanding of the transmission and natural history of the causative infections, but little is known about the burden of asymptomatic infection or undiagnosed disease. This systematic review of the published literature examined the seroprevalence of antibodies to orthoebolaviruses and orthomarburgviruses in sub-Saharan Africa. Methods: The review protocol was registered on PROSPERO (ID: CRD42023415358) and previously published. Eighty-seven articles describing 85 studies were included, of which seventy-six measured antibodies to orthoebolaviruses and forty-one measured antibodies to orthomarburgviruses. Results: The results highlight three central findings that may have implications for vaccine development and deployment. First, substantial antibody seropositivity to Ebola virus (EBOV) and Sudan virus (SUDV) was observed in populations from outbreak-affected areas (≤33% seroprevalence among general populations; ≤41% seroprevalence among healthcare workers and close contacts of disease cases). Second, antibody seropositivity to EBOV, SUDV, and Marburg virus (MARV) was observed among populations from areas without reported outbreaks, with seroprevalence ranging from <1 to 21%. Third, in Central and East Africa, MARV antibody seroprevalence was substantially lower than EBOV or SUDV antibody seroprevalence, even in outbreak-affected areas and in populations at a moderate or high risk of infection (with MARV seroprevalence mostly ranging from 0 to 3%). Conclusions: Whilst gaps remain in our understanding of the significance of antibody seropositivity in some settings and contexts, these findings may be important in considering target indications for novel filovirus vaccines, in defining study designs and strategies for demonstrating vaccine efficacy or effectiveness, and in planning and evaluating vaccine deployment strategies to prevent and control outbreaks.
Integration of Visible Light Communication, Artificial Intelligence, and Rerouting Strategies for Enhanced Urban Traffic Management
Authors: Vieira Manuela , Galvão Gonçalo , Vieira Manuel A. , Véstias Mário , Vieira Pedro , Louro Paula
Published: December 2024

This study combines Visible Light Communication (VLC) and Artificial Intelligence (AI) to enhance traffic signal control, reduce congestion, and improve safety, through real-time monitoring and dynamic traffic management. Leveraging VLC technology, the system uses existing road infrastructure to transmit live data on vehicle and pedestrian positions, speeds, and queues. AI agents, employing Deep Reinforcement Learning (DRL), process this data to manage traffic flows dynamically, applying anti-bottleneck and rerouting techniques to balance pedestrian and vehicle waiting times. A centralized global agent coordinates the local agents controlling each intersection, enabling indirect communication and data sharing to train a unified DRL model. This model makes real-time adjustments to traffic light phases, utilizing a queue/request/response system for adaptive intersection management. Tested using simulations and real-world trials involving standard and rerouting scenarios, the approach demonstrates significantly better performance in regard to the rerouting configuration, reducing congestion and enhancing traffic flow and pedestrian safety. Scalable and adaptable to various intersection types, including four-way, T-intersections, and roundabouts, the system’s efficacy is validated using the SUMO urban mobility simulator, resulting in notable reductions to travel and waiting times for both vehicles and pedestrians.
Electrochemical Oxidation of Selected Micropollutants from Environment Matrices Using Boron-Doped Diamond Electrodes: Process Efficiency and Transformation Product Detection
Authors: Gamoń Filip , Żabczyński Sebastian , Szopińska Małgorzata , Pierpaoli Mattia , Zych Dawid , Bogdanowicz Robert , Artichowicz Wojciech , Łuczkiewicz Aneta , Fudala-Książek Sylwia
Published: December 2024

Bisphenol A (BPA) and diclofenac (DCF) are among the most prevalent micropollutants in aquatic environments, with concentrations reaching up to several hundred µg/L. These compounds pose significant risks to biodiversity and environmental health, necessitating the development of effective removal methods. However, both BPA and DCF can be resistant to conventional treatment technologies, highlighting the need for innovative approaches. Electrochemical oxidation (EO) has emerged as a promising solution. In this study, we assessed the effectiveness of EO using boron-doped diamond (BDD) anodes to remove BPA and DCF from two types of treated wastewater (TWW-W and TWW-D) and landfill leachate (LL). The evaluation included an analysis of the removal efficiency of BPA and DCF and the identification of transformation products generated during the process. Additionally, the feasibility of the EO-BDD process to remove ammonium nitrogen (N-NH4+) and organic compounds present in these environmental matrices was investigated. The EO-BDD treatment achieved remarkable removal efficiencies, reducing BPA and DCF concentrations by over 96% in LL and TWW-W. Transformation product analyses identified four intermediates formed from parent compounds during the oxidation process. Furthermore, the EO-BDD process effectively removed both chemical oxygen demand (COD) and ammonium nitrogen from LL, although weaker results were observed for TWWs. These findings underscore the potential of the EO-BDD process as an effective method for the removal of BPA and DCF from challenging matrices, such as wastewater containing micropollutants. It also shows promise as a complementary technology for enhancing current conventional wastewater treatment methods, especially biological degradation.
Morphological Characteristics and Annual Population Dynamics of Microcystis (Cyanobacteria) in Nanwan Reservoir (Xinyang, China)
Authors: Tian Yuan , Ju Chenxi , Wu Kunjie , Liu Xin , Zhang Haojun , Guan Jiabao , Ge Yilin , Zhao Liangjie , Su Chaoqun , Yang Tiezhu , Ma Yuanye
Published: December 2024

Microcystis, a key genus of bloom-forming cyanobacteria in freshwater ecosystems, has garnered significant research interest due to its species diversity and population dynamics. This study investigated the water profiles and Microcystis populations at six stations in the Nanwan Reservoir (Xinyang, China) throughout 2022 to elucidate the morphological characteristics of Microcystis, analyze its population density patterns, and identify key environmental factors influencing its dynamics. The reservoir was classified as mesotrophic during most of the study period. Seven common Microcystis species were identified, including M. botrys, M. smithii, M. wesenbergii, M. firma, M. novacekii, M. aeruginosa, and a species suspected to be M. flos-aquae. The spatial and temporal distribution analyses revealed a bimodal fluctuation in Microcystis densities, with a monthly occurrence across stations except in August. The highest density, 1.71 × 107 cells/L, was recorded in May, while the lower densities were observed from July to September. The Mantel test results indicated that the nitrogen levels, particularly NO3−-N, were the primary factors influencing the Microcystis density. Additionally, both the reservoir bays and dam areas exhibited a high risk of Microcystis blooms. Effective management of nitrogen inputs, enhanced monitoring, and appropriate gate operations are recommended to mitigate the risk of Microcystis blooms in the Nanwan Reservoir.
Embracing Full Openness: Transitioning ESNBU from CC BY-NC to CC BY
Authors: Bogdanov Stanislav
Published: December 2024

This editorial explores the rationale behind transitioning the ESNBU journal’s content licensing from CC BY-NC (Attribution-NonCommercial) to CC BY (Attribution). For a decade, the journal operated under the CC BY-NC license to restrict commercial use, but this approach has unintentionally limited its reach and visibility. The objective is to address these limitations and promote unrestricted dissemination of scholarly content. The analysis involved a review of the journal’s indexing history, feedback from database providers, and usage statistics over the past ten years. We examined cases where the NC clause hindered the journal's inclusion in databases, especially those operated by commercial or for-profit entities. We also reviewed existing literature on licensing impacts in open access publishing to understand broader trends and potential benefits of a transition to CC BY. The study found that the NonCommercial restriction created significant barriers to the journal's visibility and dissemination. Several commercial and academic databases opted not to index the journal's content due to ambiguity around the "commercial use" clause. By transitioning to a CC BY license, we anticipate enhanced indexing opportunities, increased content integration into educational resources, and a broader reach, ultimately leading to higher citation rates and greater impact. Moving to a CC BY license aligns the journal with the principles of Open Science, fostering unrestricted access to knowledge. This change supports wider dissemination, potential for increased collaboration, and enhanced visibility in academic databases. Future analysis will focus on measuring the impact of this transition on the journal's citation metrics, user engagement, and overall accessibility.
The use of biologically active substances of peptide nature in medicine
Authors:   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Senatorova O. V. , Danilova L. A. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Voronova Yu. S. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Stepanova L. Yu. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Romanyuk P. I. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Tolkachev I. D. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Vologdin D. I. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Volkova D. O. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University, Oskolkova A. R. ,   Federal State Budgetary Educational Institution of Higher Education Tyumen State Medical University
Published: December 2024

One of the promising directions in preventive medicine in the region is the
use of biologically active additives (dietary supplements). Such complexes are concentrated sources of various biologically active substances, such as vitamins, minerals, amino acids, extracts of medicinal plants and others. Numerous studies demon
strate that a number of components of biologically active nutrient complexes are able
to have a positive effect on the mental state of a person, affecting various mechanisms
underlying mental functions. This review is devoted to the consideration of the main
mechanisms of action of biologically active additives, ensuring their beneficial effect
on human mental health.
Development of the reinforced concrete resistance theory in the zone about reinforcement
Authors: Kolchunov V. I. , Fedorova N. V. , Llushchenko T. A.
Published: December 2024

The actual problem of resistance of near-reinforcement zone of concrete is solved as a problem of volumetric stress-strain state with "closure" of output integral parameters of this zone on the rod scheme of the whole reinforced concrete element synthesizing hypotheses and dependencies of various disciplines of mechanics of solid deformation body, including fracture mechanics. The calculation model of the reinforced concrete element takes into account the effect of reinforced concrete of prof. Vl.I. Kolchunov describing the mechanism of formation and development of transverse and longitudinal cracks. In this case, generalized hypotheses of linear and angular deformations for warping and gradients of jumps of relative mutual displacements of reinforcement and concrete are adopted. New functionals of reinforced concrete are constructed, which are consistent with the ideas about resistance of crosssections of rod elements in near-reinforcement zones. Physical equations for a concrete matrix modeled between transverse cracks are written.

The displacement components for the near-reinforcement area are found in relation to the crack opening width at the boundary of the "concrete-reinforcement" contact in transverse, longitudinal and radial cracks, respectively. The use of the accepted assumptions and multi-level calculation scheme for the near-reinforcement region significantly brings the calculation model closer to a real assessment of physical phenomena.
Response of the beam-base system to a sudden change in the modulus of elasticity of the beam material
Authors: Poddubny A. A. , Gordon V. A. , Semenova G. A.
Published: December 2024

A mathematical model of the dynamic process excited in a statically loaded beam-base system by a sudden change in the beam's bending rigidity is constructed. It is assumed that either the beam material's elastic modulus or the beam's cross-sectional axial moment of inertia changes when it is rotated by 90 degrees relative to the beam's longitudinal axis while maintaining the load direction. Forced vibrations are investigated by decomposing the load and static deflection of the initial beam into rows according to the beam's natural vibration modes with changed parameters. Natural frequencies and corresponding displacement and bending moment modes are determined by the initial parameter method using a vector-matrix representation of the states of arbitrary beam sections. Numerical results are provided to demonstrate the capabilities of the approach.
Favorable area selection and basin-scale estimations of theoretical CO2 storage capacity of the Irati Formation, Paraná Basin, Brazil
Authors: Cañas Stephanie San Martín , Tassinari Colombo Celso Gaeta
Published: December 2024

Brazil must achieve net-zero by 2050 and meet Paris targets while safeguarding its energy supply by scaling up CO2 geological storage, particularly alongside natural gas production. This study focuses on the Paraná Basin, a hub for stationary CO2 emissions with promising shale gas and CO2 storage potential, but detailed maps of favorable areas are needed. Therefore, this study proposes a predictive methodological framework for site selection and basin-scale CO2 storage capacity estimations, using the Irati Formation as a case study. Our findings reveal that the most favorable regions for co-developing shale gas and CO2 geological storage are in São Paulo, Paraná, and Mato Grosso do Sul. These areas meet technical and environmental safety requirements, spanning 151,950 km² with an average CO2 storage capacity of 138.53 GtCO2.
خوارزمية لحل مسألة التخصيص والجدولة
Authors: الموسى ياسر عبدالله
Published: December 2024

يهدف هذا البحث إلى صياغة مسألة التخصيص والجدولة وفق تقنيات تمثيل مسألة تلوي الخريطة الجغرافية. حيث سنمثِّل عناصر جدول التخصيص على شكل مخطط شبكي، سنعتمد عليه في بناء شجرة تمكِّننا من البحث عن مسار يمر بكافة عقد المخطط ويحقِّق شروطاً موضوعة مسبقاً. وسيقدِّم البحث برنامجاً يعمل على تمثيل بيانات المسألة وإيجاد الحل لها، وذلك بالاعتماد على التقنيات الأساسية المستخدمة في مجال الذكاء الاصطناعي. أٌعِدَّ هذا البرنامج وفق منهجية غرضية التوجه، وتضمَّنت بنية البرنامج قوائم لتمثيل البيانات فضلاً عن أغراض برمجية للمعالجة (برمجة غرضية التوجه). إن الأسلوب المتبع في هذا البرنامج يمثل صيغة بديلة للأساليب الرقمية التقليدية المستخدمة في حل هذه المسألة المستنبطة من البرمجة الرياضية وبحوث العمليات.
الأداء الاستثماري لأسهم القيمة وأسهم النمو في سوق الكويت للأوراق المالية
Authors: اللوغاني نبيل عيسى , مطر محمود حسين
Published: December 2024

خلت المكتبة العربية، حتى قبيل نشر هذا البحث، من أية دراسات، وصفية كانت أو وصفية كانت أو كمية، حول قواعد تشكيل محافظ الاستثمار بالأسهم على أساس قيمة مضاعفات P/E. وتقوم هذه الدراسة بسد هذه الفجوة عن طريق تقديم عرض مقارن للجوانب النظرية والأدلة التجريبية للعلاقة بين مضاعف P/E وأداء محافظ الاستثمار بالأسهم في بعض الأسواق الراسخة. وقد تمخض عن اختبار هذه العلاقة في سوق الكويت للأوراق المالية نتائج تشير إلى أن المحافظ المشكلة من أسهم ذات مضاعفات منخفضة (أسهم قيمة) تتفوق في الأداء على المحافظ المشكلة من أسهم ذات مضاعفات مرتفعة (أسهم نمو). ويشير ذلك إلى عدم كفاءة سوق الكويت للأوراق المالية وعلى إمكانية تحقيق عوائد فوق عادية فيه.
السلوك القيادي التحويلي وسلوك المواطنة التنظيمية في الأجهزة الحكومية السعودية
Authors: العامري أحمد بن سالم
Published: December 2024

يهدف هذا البحث إلى تعرف سلوك المواطنة التنظيمية والسلوك القيادي التحويلي في الأجهزة الحكومية السعودية وطبيعة العلاقة التي تربطهما. وتشير النتائج إلى أن سلوك المواطنة التنظيمية بأبعاده المختلفة متدنٍ في هذه الأجهزة، كما أن السلوك القيادي التحويلي لا يرتقي إلى مستوى تطلعات الموظفين. أيضاً كشفت النتائج عن وجود علاقة ذات دلالة إحصائية بين السلوك القيادي التحويلي وسلوك المواطنة التنظيمية، لكن العلاقة بين العوامل الشخصية وهذين النمطين من السلوك بأبعادهما المختلفة ضعيفة نوعاً ما، وتحتاج إلى مزيد من الدراسات. وقد انتهت هذه الدراسة بعدد من التوصيات الأكاديمية والعلمية.
PERAN ORANG TUA DALAM PEMBENTUKAN KARAKTER ANAK DI KOMUNITAS BASIS GEREJAWI SANTA TERESA PAROKI SANTO PETRUS COLOL
Authors: Servi Yustina , Sutam Inosensius , Bule Oswaldus
Published: December 2024

Orang tua memiliki peran penting membentuk karakter anak. Permasalahan penelitian ini yaitu adanya orang tua yang kurang memahami tentang pentingnya pembentukan karakter anak dan adanya anak yang tidak memiliki karakter baik seperti bertutur kata kurang sopan, kurangnya rasa peduli, tidak jujur terhadap orang tua dan kurangnya rasa hormat pada yang lebih tua. Pertanyaan penelitian ini ialah bagaimana peran orang tua dalam pembentukan karakter anak di Komunitas Basis Gerejani (KBG) Santa Teresia Paroki Santo Petrus Colol.  Penelitian ini bertujuan untuk menjelaskan bagaimana peran orang tua dalam pembentukan karakter anak di KBG Santa Teresia. Penelitian ini menggunakan pendekatan kualitatif deskriptif. Data dikumpulkan dengan metode wawancara terhadap 8 orang tua dan ketua KBG Santa Teresia. Data wawancara ini dianalisis menggunakan tiga langkah yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa orang tua berperan untuk membantu anak berpikir positif, berbuat baik, mampu bersaing, disiplin, taat aturan, sopan santun, memegang teguh nilai kemanusiaan, keagamaan, moral, sosial, dan nilai budaya, kritis dalam pergaulan dan penggunaan gadget, tegas, dan mandiri.
The Use of Blockchain Technology for Smart Contracts in Future Business Agreements
Authors: Ovaliani Putri Claudia , Williams Jacob , Anastasya Luna , Juliastuti Dyah
Published: December 2024

The rapid advancement of technology in the digital era has prompted many companies to develop their businesses in line with current trends, one of which is by applying blockchain technology to smart contracts. This technology is a derivative of Cryptocurrency, which has become a trend in asset trading. The blockchain system in Cryptocurrency enables smart contracts to be designed to operate autonomously through blockchain technology using programming languages translated into legal language. This study aims to analyze the legality of using blockchain technology for smart contracts as legal products in the digital era and to assess the effectiveness of blockchain technology on smart contracts in business agreements between companies in Indonesia. This research employs a normative juridical method, focusing on the prevailing legal regulations related to the legality and effectiveness of using blockchain technology in smart contracts. The study concludes that the potential of blockchain for smart con- tracts is significant, given its efficiency and practicality, which can also reduce transaction costs. However, its implementation still needs to adapt to existing technologies, be easily accepted by society, and have stronger legal guarantees in its application.
Exploring the role of Saudi leaders in increasing their employees’ awareness of green management practices and the challenges they face: a case study of Saudi Public Universities
Authors: Alenezi Hamood , ElRabbat Samar
Published: December 2024

This study seeks to investigate the role of Saudi leaders in promoting their employees' understanding of green management techniques in Saudi public universities, as well as the problems they encounter in doing so. This text explores the techniques and initiatives employed by these leaders to advance environmental sustainability, as well as the organisational and cultural obstacles that may hinder these endeavours. This study used a structured questionnaire consisting of closed-ended questions, which may be rated on a Likert scale to assess the level of agreement with specific claims. The findings of this study demonstrate that regression models applied to female, male, and general datasets show substantial impacts of employee awareness, engagement, and organisational factors in green management on leadership initiatives, with varying degrees of influence depending on gender. The findings of this study can be advantageous to decision-makers in Saudi institutions, researchers, and academics. Moreover, this work has the potential to serve as a novel point of reference in the realm of green management for future applications.
Реализация государственной научно-технологической политики России в условиях деглобализации мировой экономики
Authors: Ахметов Т.Р. , Гаймалова С.М.
Published: December 2024

Актуальность исследования заключается в том, что экономическая политика в сфере научно-технологического развития различных стран обусловлена интересами крупного капитала (ТНК), что сейчас в соответствии со сменой этапа глобализации этапом деглобализации выливается в применение западной группой стран антироссийских санкций (в XX веке – антисоветских, антигерманских, антииранских, в XXIвеке – антикитайских, антивенесуэльских, антисирийских). Проблема для России и ее регионов заключается в выборе направлений научно-технологической политики в периоды глобализации и деглобализации. Цель исследования – выявление специфики научно-технологической политики в периоды глобализации и деглобализации методом сравнительного анализа. Результат/вывод: в России обосновано применение в научно-технологической политике модели догоняющего развития.

The relevance of the study lies in the fact that economic policy in the field of scientific and technological development of various countries is conditioned by the interests of large capital (TNCs), which now, in accordance with the change of the stage of globalization, the stage of deglobalization results in the implementation of anti–Russian sanctions by a Western group of countries (in the XX century – anti-Soviet, anti-German, anti-Iranian, in the XXI century - anti-Chinese, anti-Venezuelan, anti-Syrian). The problem for Russia and its regions lies in the choice of directions of scientific and technological policy during periods of globalization and deglobalization. The purpose of the study is to identify the specifics of scientific and technological policy in periods of globalization and deglobalization by comparative analysis. Result/conclusion: in Russia, the application of the catch-up development model in scientific and technological policy is justified.
Diseño de juegos didácticos
Authors: Barrientos Chamorro José Luis , Abarca Alarcón Ricardo Antonio
Published: December 2024

El siguiente trabajo tiene por objetivo observar las prácticas docentes en el campo de la formación de diseñadores y arquitectos, a través del prisma de los nuevos escenarios que se desprenden de la consolidación de la sociedad de la información y los hechos globales. En particular nos enfocamos en la pandemia COVID, que recientemente afectó dramática y decisivamente los hábitos de convivencia de la humanidad. Se describe una experiencia educativa de transición entre una modalidad formativa mediada por una interfaz tecnológica y una instancia presencial en torno a un proceso proyectual de desarrollo de un set de juegos didácticos para estimular los principios de espacio, recorrido y equilibrio en niños entre 3 y 12 años. El proceso sigue una secuencia de tres momentos. El primero consiste en la alfabetización en fabricación digital a distancia realizado durante el año 2021; el segundo, desarrollo y producción presencial en la institución de educación superior, realizado durante el año 2022 y el tercero, también presencial, consiste en la validación de la propuesta en un jardín infantil realizado el año 2023. De la experiencia se concluye una propuesta formativa híbrida para desplegar competencias tecnológicas en la elaboración de proyectos de fabricación digital.
"Historia, historiografía y metodología. Anarquismos en América Latina”. Introducción
Authors: Margarucci Ivanna , Godoy Sepúlveda Eduardo
Published: December 2024

Este dossier, que hemos titulado “Historia, historiografía y metodología. Anarquismos en América Latina”, da cuenta precisamente del actual dinamismo del campo de estudio del anarquismo en América Latina, que muy bien describen con su aporte Ivanna Margarucci y Laura Fernández Cordero. Si las propuestas de este movimiento, como un sistema abierto de ideas, fueron flexibles, la forma de estudiarlo también lo ha sido. Así lo demuestran los cinco trabajos que forman parte del dossier y es, en definitiva, lo que lo convierte a ese campo de estudios en uno ya no en expansión, sino acaso inagotable.
Theoretical analysis of the intestinal microbiota influence on colorectal cancer development
Authors: Tiuliukin I.O. , Ivanchov P.V.
Published: December 2024

Background. ColoRectal Cancer (CRC) is one of the most common malignant tumors: about a million new cases are diagnosed annually in the world. In Ukraine, the incidence of CRC is 20.5 per 100,000 population. The ratio of mortality and morbidity indicates significant shortcomings in the diagnosis, treatment and prevention of CRC.

Aim. To study theoretical scientific developments regarding the influence of intestinal microbiota on the development of colorectal cancer.

Materials and Methods. In the course of writing the scientific article, a number of modern literary sources and the latest data from scientific Web databases were studied of Science, Scopus, Google Scholar and PubMed, methods of systematic and comparative analysis of the specified problem were applied. Medical and statistical data of scientific publications on morbidity and treatment results in different countries of the world were studied.

Results. According to world statistics, CRC is the third most common in men (10.0% of the total number of malignant neoplasms) and the second most common in women (9.2%). Approximately 45.0% of CRC patients die despite treatment. A high percentage of emergency operations is recorded in elderly patients with chronic accompanying pathology, which is the cause of a large number of postoperative complications ([24.0–80.0] %) and mortality ([11.0–36.0] %). The incidence of CRC in Ukraine is the highest among a number of countries and indicates significant deficiencies in the diagnosis and treatment of patients, as well as in the prevention of this disease. Intestinal microbiota plays an important role in the development of colorectal cancer. Disruption of the functioning of the intestinal microbiota also leads to the development of a significant number of infectious, metabolic, oncological, neurological and endocrine diseases.

Conclusion. The analysis of literary sources and clinical studies of domestic and foreign authors allows us to assert that the microbiota, influencing the immune system, plays an important role in the induction and progression of colorectal cancer.

Keywords: mortality, morbidity, treatment.
Efektivitas Penggunaan Aplikasi Screen Time-Parental Control dalam Penggunaan Gadget Pada Siswa Kelompok B di Ra Raudlatul Mubtadiin
Authors: Mukarromah Lulu , Musayyadah Musayyadah , Gupita Norma
Published: December 2024

The influence of the use of gadgets in early childhood depends on how parents supervise and direct behavior. Good parenting patterns are needed in accompanying children to use gadgets so that they are in accordance with their functions and avoid the negative impacts they cause. In this study, researchers had the idea to implement the use of the Screen Time-Parental Control application to assist parents in supervising children in using gadgets. The purpose of this study is to find out how the effect of the Parental Control application is in supervising and limiting children who are negatively affected by the use of gadgets, such as gadget addiction and being kept away from negative content that is not appropriate for their age. Data were obtained through questionnaires and in-depth interviews with the parents of RA Raudlatul Mubtadiin students in Toket Village. In this study, researchers used quantitative research methods, with group B students as their research subjects and their parents. The results of the study show that using gadgets for children requires good assistance and care from parents and the application of the Screen Time-Parental Control application can assist parents in supervising children at RA Raudlatul Mubtadiin in using gadgets.
Subjective Well-Being Guru PAUD Non Sarjana di Desa Gunungsari Kecamatan Tlogowungu Kabupaten Pati
Authors: Fithriyatun Fithriyatun
Published: December 2024

Subjective well-being is a concept that refers to an individual's evaluation of their life as a whole, including happiness, life satisfaction, and happiness. PAUD (Early Childhood Education) teachers who do not have a bachelor's degree often face challenges and constraints in their profession. The aims of this study were: 1) To find out how the condition of the subjective welfare of non-graduate PAUD teachers in Gunungsari Village, Tlogowungu District, Pati Regency. 2) Exploring the factors of happiness and life satisfaction of non-graduate PAUD teachers in Gunungsari Village, Tlogowungu District, Pati Regency. The type of research that the authors use is phenomenological qualitative research. Phenomenology itself comes from the word phenomenon which means the appearance of an object, event or condition in the perception of an individual. Data collection techniques are through observation, interviews, and documentation while data analysis is data reduction, data presentation, verification, and drawing conclusions. The results of the study show that even though non-graduate PAUD teachers face obstacles such as the burden and patience required in dealing with children, they can still feel high subjective well-being. includes factors that contribute to the welfare of non-graduate PAUD teachers, factors of gratitude, personality, environment, economy, optimism.
Peningkatan Keterampilan Motorik Halus Melalui Teknik Mozaik TK Islam Nahdatul Ulama Palangka Raya
Authors: Randani Randani , Zulkarnain Ali Iskandar , Aghnaitaa Aghnaita
Published: December 2024

Keterampilan motorik halus merupakan gerakan yang hanya menggunakan otot-otot kecil, misalnya koordinasi tangan-mata. Tujuan penelitian ini adalah untuk mendeskripsikan perkembangan motorik halus anak melalui teknik mosaik di TK Islam Nahdlatul Ulama Kota Palangka Raya. Penelitian ini menggunakan penelitian kualitatif dengan pendekatan deskriptif. Metode penelitian menggunakan reduksi data, penyajian data, dan penarikan kesimpulan. Menurut hasil penelitian, perkembangan motorik halus anak usia 4-5 tahun dapat ditingkatkan dengan menggunakan teknik mozaik untuk mengkoordinasikan gerakan-gerakan yang kompleks, mengekspresikan diri dalam karya seni dengan menggunakan berbagai media, dan melakukan gerakan-gerakan halus. Indikatornya antara lain: pengendalian gerakan tangan menggunakan. Otot dengan teknik mosaik Keberhasilan perkembangan motorik ditentukan oleh hasil penilaian perkembangan motorik halusnya.Hasil evaluasi adalah: 1 anak Mulai Berkembang (MB), 4 anak Berkembang Sesuai Harapan (BSH), dan 3 anak Berkembang Sangat Baik (BSB).