bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of Weather Modification Technology for Wetting Peatlands as a Mitigation Measure for Forest and Land Fires in South Kalimantan Province
Authors: Fitriano Lutfi , Poniman Aris , Harsono Gentio
Published: December 2024

Weather Modification Operation (WMO) was conducted in South Kalimantan Province from July 29 to August 9, 2024, to support the wetting of peatland as a measure to mitigate forest and land fires. (karhutla). This operation was carried out by inserting superfine powder NaCl seeding material, which was sown into the clouds using the TNI AU's Casa 212-200 aircraft. Global and local weather factors were taken into account in determining the timing and location of seeding. El Niño and Indian Ocean Dipole (IOD) factors that were in the neutral phase as well as warm sea surface temperatures (+0.5°C to +2.0°C) around the waters of South Kalimantan contributed to the success of this operation. In the implementation of OMC, analysis of air humidity in the 925 to 500 mb layer showed the potential for convective cloud growth in most of the target areas, although humidity decreased on several days in certain layers. The implementation of the operation successfully increased rainfall in the target area, with rain intensity varying between 0 to 40 mm per day during the OMC period, resulting in significant wetting of peatland and an increase in groundwater table height (TMAT) at critical locations. The contribution of OMC successfully reduced the risk of forest and land fires by decreasing the number of hotspots in the priority peatland areas of South Kalimantan. In line with the Indonesian government's climate change mitigation strategy, we expect the long-term impact of this activity to reduce the intensity of forest and land fires and carbon emissions from peatlands in this area.
Formulation of Micro Product Positioning Strategy
Authors: Sewaka Iman , Marsono Acong Dewantoro
Published: December 2024

This study examines the strategic alignment of microfinance products following the integration of PNM, Pegadaian, and BRI into the Ultra Micro Holding (UMi). A primary focus is the standardization of micro-segment products to avoid overlap and strengthen the ecosystem. The analysis highlights similarities among BRI’s KUPEDES, Micro Pegadaian, and PNM’s ULaMM products, emphasizing the impact on ULaMM’s conventional individual lending. Identifying product overlaps and conducting comparative feature analysis is essential for continuous product improvement. The study employs a qualitative approach to: (1) analyze product feature comparisons, (2) assess customer satisfaction performance, (3) investigate the background of product feature overlaps, and (4) formulate a customer-driven development and positioning strategy. Findings aim to present a Sustainable Competitive Advantage using strategic management tools. Key informants and structured timelines are designed to minimize respondent disruption while collecting insights for product differentiation. A SWOT analysis of PNM’s Business Model Canvas post-integration will inform strategic initiatives for growth over the next five years. Effective marketing programs must communicate the desired product perception, while the company prepares for potential digital transitions to enhance technology readiness and customer experience management. Addressing operational gaps and aligning human capital within the holding is crucial for fostering stakeholder engagement and sustainable growth.
Community Empowerment Strategy in Maritime Tourism: A Qualitative Approach in Pari Island, Thousand Islands, Indonesia
Authors: Annida Shafira Bilqis , Taofiqurohman Ankiq
Published: December 2024

This research aims to analyze community empowerment strategies in marine tourism management in Pari Island using a qualitative approach. Data were collected through in-depth interviews, participatory observation, and documentation. The results showed that community empowerment has increased local participation in tourism, particularly in economic activities such as homestay management and tourist equipment rental. However, challenges in environmental sustainability and gaps in access to economic resources remain an issue. In conclusion, inclusive empowerment strategies and continued support from various parties are needed to ensure tourism develops sustainably.
Optimizing Students' Critical Thinking Abilities through the Guided Inquiry Learning Model
Authors: Cahyani Karin , Srigustini Astri , Sartika Sri Hardianti
Published: December 2024

In many schools, students' critical thinking abilities are still relatively low, reflected in their difficulty in analyzing information in depth, constructing logical arguments, and solving problems effectively. This research aims to determine the extent to which applying the Guided Inquiry learning model can improve students' critical thinking abilities. The method used in this research is an experiment with a Nonequivalent Control Group Design. The population used in this research was class XI IPS students at SMAN 6 Tasikmalaya with 198 students, and the sampling technique used was purposive sampling, where the sample was determined based on student activities. Class XI IPS 3 was chosen as the experimental class, which applied the Guided Inquiry model, while class XI IPS 4 was used as the control class, which used the discovery learning model. The instrument used is a set of 22 essay questions. The research results show a significant difference in critical thinking skills between the experimental and control classes, indicating that implementing the Guided Inquiry learning model effectively improves students' critical thinking skills. Hopefully, this research will become a reference for developing more effective strategies and learning models in schools.
The Impact of Leadership Style on Teachers' Performance at SMP Al-Ikhlas Lombok
Authors: Fan Yang , Nuruly Santi
Published: December 2024

This study examines the impact of the principal's leadership style on teachers' performance at SMP Al-Ikhlas Al-Islami Lombok using a mixed-method approach. Data were collected through interviews and questionnaires, with findings showing that the principal adopted a democratic leadership style, involving teachers in decision-making processes. However, statistical analysis revealed that the leadership style had no significant effect on teachers' performance, with only 1.3% of performance influenced by this variable (t-count = 0.631 < t-table = 2.03951, significance = 0.599 > 0.05). Despite this, interview results highlighted that encouraging teachers to work efficiently and effectively positively influenced their performance.
Vegetation Association of Bird of Paradise Community in Berber Village Forest, West Bonggo District, Sarmi Regency, Papua Province Indonesia
Authors: Raunsay Edoward Krisson , Koirewoa Dolfina Costansah , Jesajas David Reinhard , Nurcholis Waras
Published: December 2024

This research aims to determine the richness, diversity and dominance of tree and bird species, as well as analyzing the relationship between trees and bird communities in the Berber Village forest.  Data collection methods include observation, exploration and Concentration Counts. Species richness analysis uses the Margalef Index. Diversity index, with the Shannon-Wiener equation, Dominance index using the dominance index. Assessment of the ecological function of trees using four assessment categories (very good, good, moderate and poor). A total of 36 individuals were observed, consisting of 23 males and 13 females. The richness of birds of paradise in Berber village forests is in the low category (0.4343) and is dominated by P. minor. Activity P. minor observed at various heights ranging from 21 to 64 meters above sea level (masl). Distribution of Bird of Cenderawasih activity (P. minor And C. king) shows a predilection for certain tree types and variations in height.
Lesbian, Gay, Bisexual & Trans-Sexual: a Christian Ethics Perspective
Authors: Tanugraha Yoas , Amtiran Abdon A
Published: December 2024

This research analyzes ethical-theological responses to LGBT issues in Protestant context through in-depth study of key Biblical texts and related literature. Using a qualitative approach combining hermeneutical and contextual analysis, this research explores: interpretation of Biblical texts about LGBT, formulation of Christian ethical principles, development of theological-ethical responses, and pastoral care models. Research findings show that Biblical texts consistently and firmly reject LGBT practices as deviation from creation order. The research identifies seven fundamental ethical principles that should underlie church response: principles of creation, holiness, love, redemption, community, human dignity, and pastoral care. In implementation, churches need to develop a "convicted humility" approach that combines strong theological conviction with pastoral humility, distinguishing between behavior rejection and individual acceptance. Effective pastoral care models require integration of theological understanding with pastoral sensitivity, creating safe spaces for dialogue and healing while maintaining biblical truth. This research provides significant contribution in helping churches develop balanced responses between doctrinal firmness and pastoral love in handling LGBT issues.
CFD SIMULATION OF CARBON MONOXIDE CIRCULATION DYNAMICS IN A VENTILATION INSTALLATIONS TUBING
Authors: Gherghe Ion , Radoi Florin , Chiuzan Emeric , Ianc Nicolae
Published: December 2024

Reducing the risk of occurrence of phenomena such as poisoning, as a result of the untimely penetration of a certain amount of toxic gases, inside a ventilation installation, is a priority, regarding the health and safety of workers, material assets and the negative influence on the environment, due to the possible problems caused by the occurrence of toxic atmospheres, formed by mixing air with toxic gases and vapors. In closed or semi-closed industrial and non-industrial buildings, effective ventilation is the primary measure to prevent toxic atmospheres. Knowing the behavior of toxic gases as well as their manner of dispersion is essential for preventing hazardous circumstances at the level of inadequately aired ventilation facilities, where toxic atmospheres might develop. For the study of the dynamics of carbon monoxide circulation inside the piping of an industrial ventilation installation under the influence of the air state parameters, the CFD technique was used with the help of the ANSYS MULTIPHISICS software package In order to carry out the simulation in a manner as close as possible to the experimental conditions, the topographic elevation of the ventilation installation was carried out within the experimental laboratory where the experiments were carried out in the laboratory, and the computer model was made The paper presents the CFD analysis regarding the influence of the state parameters on the dynamics of carbon dioxide flow inside the ventilation systems. Thus, the state parameters determined in the experimentation area and their introduction into CFD modeling are presented, respectively the establishment of the flow and dispersion model of carbon monoxide in ventilation ducts with high complexity, in the intake, transport and exhaust phases.
ARCHITECTURAL ABSTRACTIONS IN THE DESIGN OF DISTRIBUTED EMBEDDED SYSTEMS PLATFORMS
Authors: Kolchurin Maxim , Platunov Alexey , Fedor Asminkin , Pinkevich Vasiliy
Published: December 2024

The work is dedicated to formalizing the process of designing embedded systems with distributed heterogeneous organization. The original model of representing a computational system as a set of computational platforms interconnected both hierarchically and within the same level is taken as the basis. The abstraction of a �design platform� is interpreted as a design solution that is fixed for reuse and provides an application interface for building an �upward� hierarchy of abstractions alongside specifications for creating implementations �downward�. Today, the stages of system design still suffer from a lack of essential design abstractions, which is evident both in the level of information presentation in technical documentation and in the capabilities of the design tools. The focus has shifted from discussing conceptual solutions toward final implementations. The authors demonstrate a system of architectural and microarchitectural abstractions aimed at developing methods and tools for conceptual-level design. This enhances the rationale behind design decisions by representing embedded systems as compositions of abstractions with a wide range of engineering-relevant parameters and characteristics. The authors develop an aspect-oriented approach to designing embedded computational systems, proposing a method for formalizing engineering-relevant attributes for diverse design abstractions such as network interfaces, protocols, controllers, drivers, operating systems, their components, programming languages, their translators, and virtual machines.
THE SECURITY REQUIREMENTS FOR CYBER-PHYSICAL SYSTEMS
Authors: Imanbayeva Akmaral , Syzdykova Rabiga
Published: December 2024

Cyber-physical physical systems find their place in all spheres of modern life and are in a stage of rapid development. The prospects for the development of cyber-physical systems affect the interests of society as a whole, so they should be considered not only in a technical, but also in a broader socio-cultural aspect. The scope of application of cyber-physical systems extends to industrial systems, energy, transport and military systems, as well as all types of life support systems. Researchers repeatedly consider issues related to ensuring the reliability and security of cyber-physical systems. It is very important to solve the proposed problem, firstly, a cyber-physical system is a complex system with a large number of structural elements that require coordinated and continuous operation of the elements for their operation. Secondly, the cyber-physical system is a fully automated system, and the reliability and security issues of automated systems have not yet been resolved. An important aspect of the development of cyber-physical systems is the requirement of security. Therefore, security requirements engineering has developed rapidly in recent years, and more and more security techniques have been proposed in the research community. To date, there are several studies available in the literature that have focused on examining security requirements engineering from different perspectives. In paper, information was obtained about the considered solutions for developing security requirements and tools for their implementation. The results showed that there is a growing trend of interest in security requirements engineering, especially in cyber-physical systems research. Research helps to better understand the methods used to ensure safety.
CATCHMENT ABSTRACTION MANAGEMENT STRATEGY AND ECOLOGICAL FLOW DETERMINATION IN CASE OF NATURA 2000 AREAS
Authors: Ilcheva Irena , Zaharieva Vesela , Yordanova Anna , Balabanova Snejanka
Published: December 2024

A classical approach to the assessment of the available water resources for different users, including environmental, in Europe is the Catchment Abstraction Management Strategy (CAMS). An assessment has to be made of the extent, to which natural runoff regime could be changed without affecting the sustainable functioning of the environment. The aim of the Restoring Sustainable Abstraction (RSA) is to identify over-abstraction in rivers and wetland sites and make the abstraction sustainable again. In this regard, the report presents an innovative approach for the integrated assessment and management of the water and natural resources (water ecosystems, wetlands, forest, etc.) in cases of Natura 2000 areas (on the example of Vitosha Nature Park, Sanitary Protection Zones of the Struma River Basin, etc.). In the methodology, the ecosystems are also part of the measures. Some measures (such as to restore water regime of the peatlands) are non-traditional measures for RSA and supply-side drought measure. This is a step towards improving the CAMS approach. The main stages of the improved methodology are: Modeling and assessment of climate factors and trends; Water balance modeling; Assessment of water consumption and the environmental needs; Ecological flow assessment and RSA; Simulation modeling and CAMS; Monitoring and adaptive management. A methodology and a mathematical model for determination the ecological flow in Bulgaria which is a necessary condition for achieving a good ecological status are proposed. As an object of research macrozoobentos ecosystem are considered. Emphasis is given to the places of water abstraction, water transfer, rivers at risk of not achieving good ecological potential (hot spots). Measures with synergistic effects are recommended � to protect ecosystems, for flood risk prevention, etc. The results and applications in practice are related to the Vitosha Nature Park Management Plan, Program of Measures, for the goals of WFD and Natura 2000 and supports the MoEW and Basin Directorates in determining the ecological flow and implementation the Eflow concept in Bulgaria
THE IMPACT OF WASTEWATER EMISSIONS ON THE HEALTH OF THE POPULATION OF BUKHARA (UZBEKISTAN)
Authors: Vorobyov Alexander , Vorobyev Kirill , Teshaev Shukhrat , Mamasaidov Zhamaletdin , Chekushina Tatiana
Published: December 2024

Water pollution from untreated wastewater discharge is a major public health concern in the ancient city of Bukhara, Uzbekistan. The city lacks adequate wastewater treatment facilities, leading to the release of contaminated water into the environment. This has resulted in the deterioration of water quality in local water bodies, posing serious risks to human health.
One of the primary sources of pollution is the discharge of domestic and industrial wastewater into the Shavkat aria canal, which flows through the city. The canal water is used for irrigation purposes in surrounding agricultural areas, facilitating the spread of waterborne diseases. Microbiological and chemical analyses have revealed alarmingly high levels of pathogens, heavy metals, and other pollutants in the canal water.
The inadequate wastewater management system has led to an increased incidence of waterborne diseases, such as acute intestinal infections, viral hepatitis A, and typhoid fever, among the local population. Children are particularly vulnerable due to their higher exposure and weaker immune systems.
Addressing this issue requires urgent action, including the construction of modern wastewater treatment facilities, enforcement of environmental regulations, and public awareness campaigns on proper sanitation practices.
EFFECTS OF ORGANIC FERTILIZER APPLICATION ON AMERICAN CRANBERRY CULTIVATION � MINERAL NUTRITION STATUS, PLANT VITALITY AND POSSIBLE ENVIRONMENTAL ASPECTS
Authors: Karlsons Andis , Osvalde Anita , Abolina Laura
Published: December 2024

The cultivation of American cranberries (Vaccinium macrocarpon Aiton) with organic fertilizers is becoming more common in the world. With 180 ha of producing plantings and 376 tonnes of yearly production, Latvia is one of the largest cranberry producers in the world. The lack of knowledge on fertilization management can be an obstacle to a successful transition to organic farming. The objective of this study was to test the effect of organic fertilizer of animal origin on cranberry mineral nutrition status, plant vitality, vegetative growth and berry yield. Field experiments on cranberry cultivar Bergman were conducted during 2022-2023 in a commercial plantation established on cutover peat bog in Latvia. In the spring of both experimental years, cranberries received five levels (1, 2, 3, 4, and 5 t ha-1) of certified pelleted organic fertilizer FERTIPLUS (4-3-3-65 OM). Two control treatments � without fertilizer and conventional fertilizer with Novatec Classic (12-8-16+3+TE) � were also established. The results showed that even the highest doses of organic fertilizer added in 2022 did not affect the nutrient content in the peat in 2023 at the beginning of vegetation, thus indicating a high release of plant-available nutrients in the first year. Nutrient release process occurred over a longer period than from conventional fertilizer, reaching maximum in August. Adjustment of the organic fertilization strategy is needed to account for the slow release pattern and synchronize with the cranberry growth phases. Thus, organic fertilizer can be successfully incorporated into the American cranberry fertilization plan for plantations in peat bogs with the optimal dose of 2-3 t ha-1.
SOIL PROTECTION AGAINST SOIL EROSION BY USING ANTI-EROSION METHODS IN THE HILL AREA OF BUZAU, ROMANIA
Authors: Teodora Alexandra , Mariana Burcea
Published: December 2024

The paper presents the results of research undertaken in 2023, in the perimeter of the Stationary for the Study of Soil Erosion located on the left side of the Slanic Hydrographic Basin in Buzau county, with a slope of 15-20 %.
Within the station are located 12 plots for the control of soil surface erosion cultivated differently. The amount of soil washed away by torrential rains during the growing season was different depending on the degree of soil cover given by agricultural crops [11] . From the plot cultivated conventionally with winter wheat it was observed that 3.8 t/ha of soil is washed, and on the soil cultivated with wheat sown in strips the amount of washed soil is 0 t/ha, compared to the uncultivated soil where the amount of soil washed is 41.9 t/ha. In conclusion, the role of agricultural crops and anti-erosion techniques, such as strip sowing is very important, thus the strip-sown wheat protected the soil better against erosion compared to conventional wheat, where the amount of washed soil increases by 9%.
ANALYSIS OF THE AIR FLOW IN THE RENOVATED TEST SECTION OF BSHC SMALL WIND TUNNEL
Authors: Dobin Nikita
Published: December 2024

The existing at Bulgarian Ship Hydrodynamics Centre (BSHC) wind tunnel named MINIAT is under upgrade, in order to expand the range of the Center's capabilities and the scope of aerodynamic research by enlarging the working section sizes and closing the air flow. This renovation is inspired by recent development of modern technologies for renewable wind energy conversion and necessity for comprehensive investigation of environmental effects.
The objective of this study was to theoretically calculate a new aerodynamic contour and subsequently develop a computer model for the new constrictor and diffusor sections of the wind tunnel. To make the final decision, a series of computational fluid dynamics (CFD) simulations has been performed in ANSYS Fluent to confirm the adequacy of the sizes of the new wind tunnel elements selected using the theoretical method. The behavior of the flow in these areas was also studied using CFD methods in ANSYS fluent. Static pressure contours and velocity field contours are presented in transverse and longitudinal sections, to illustrate the homogeneity of the flow. The results will be illustrated and presented graphically.
This research is significant within the context of Renewable Energy Sources and Clean Technologies. By optimizing the wind tunnel design, the study enhances its application for renewable energy studies, particularly in wind energy conversion. The novelty of this research lies in its comprehensive approach, combining theoretical design with advanced CFD simulations to achieve an optimal aerodynamic contour for the upgraded wind tunnel sections. The authors' contributions include the theoretical calculations, development of the computer model, and the extensive CFD analysis that validated the design, ensuring its effectiveness for future aerodynamic and environmental research. The results will be graphically illustrated to provide a clear understanding of the improvements achieved through this upgrade.
ROUGHNESS EFFECT ON A FULL-SCALE GENERAL CARGO VESSEL TOTAL RESISTENCE AND EFFECTIVE POWER
Authors: Mandru Andreea , Rusu Liliana , Pacuraru Florin
Published: December 2024

The roughness of a ship�s hull can have a significant impact on the environment, primarily through its effect on the ship�s fuel consumption and, consequently, carbon emissions. The resistance a ship encounters as it moves through the water can be broadly categorized into two main types: frictional resistance and wave-making resistance. Hull roughness increases frictional resistance, also known as skin friction resistance. This resistence component is a major aspect of the total resistance of a merchant ship, leading to increased power and fuel consumption. The present study aims to systematically analyze the effect of hull roughness on ship resistance components based on Computational Fluid Dynamics (CFD) simulations of the full-scale general cargo vessel REGAL. To investigate the impact of roughness on the characteristics of the flow around the ship hull, the ISIS-CFD solver implemented in the Fidelity Fine Marine code provided CADENCE was employed. This solver is based on the Reynolds-Averaged Navier-Stokes (RANS) equations with a Volume of Fluid (VOF) approach. In order to ensure the accuracy of the results, grid convergence tests and comparisons with different results available have been performed. Four roughness conditions were simulated at a speed of 14 knots. The study of hull roughness and its effect on total resistance showed that, depending on the condition of the hull, resistance can rise by as much as 51.3% when small calcareous fouling or weed build up on the ship's hull
HIGH STRENGTH ZOLOGYPSUM COMPOSITE
Authors: Petropavlovskaya Victoria , Petropavlovskii Kirill , Kalyaskin Petr , Novichenkova Tatiana , Sulman Mikhail
Published: December 2024

Gypsum composites are promising building materials, but they have disadvantages such as low strength and water resistance. To improve these properties, a self-reinforcement method can be used, where the gypsum matrix is reinforced with crystals other than gypsum. One type of such crystals is ettringite. To obtain a self-reinforced gypsum composite, it is necessary to maintain a high pH environment and sufficient ions to form ettringite. In this work high-calcium fly ash, which is a waste product of coal combustion and contains about 50% CaO and 20% SiO2, is used. This ash has a problem with late hydration, which negatively affects the final strength of the composite. Therefore, aluminosilicate component of bottom ash and microsilica are added to the composite. This allows to maintain high pH of the medium necessary for ettringite formation. High-calcium fly ashes stored in ash dumps represent an ecological problem for many regions of the country. One of the ways to realise these ashes is their use in construction composites based on gypsum binder. In this work the possibility of obtaining self-reinforced gypsum composite of high strength with the use of high-calcium fly ash, aluminosilicate component and microsilica has been investigated. The purpose of this work is to study the effect of the addition of the aluminosilicate component of bottom ash and microsilica on the strength of a self-reinforced gypsum composite.
USING WASTE INSINERATION AS A MEANS TO INCREASE OIL RECOVERY
Authors: Mazin Baseesee , Lipaev Aleksander
Published: December 2024

The difficult environmental situation in the world is largely a consequence of the huge volume of production and consumption waste and its constant growth. In this regard, the problem of waste placement, neutralization and utilization comes to the fore. One of the most controversial methods that contribute to a significant reduction in the amount of garbage and the production of energy is waste incineration plants. The main argument of opponents of this method of disposal is the assertion about the pollution of the atmosphere by exhaust gases, which are waste from waste incineration plants. Meanwhile, the incineration technology in many cases is currently the only possible (or best) way to solve many technosphere problems. For example, to increase oil recovery from formations, gas and water-gas methods of influencing the formation, as well as pumping heat carriers into it, are widely used. These methods require, in particular, the combustion of hydrocarbon fuel. This paper considers the option of using waste from waste incineration plants (flue gases and heat) as tools in the oil producing industry. To solve this problem, it is necessary to analyze the morphological composition of waste, which in turn contributes to the development of effective strategies for their use. The use of waste incineration to increase oil recovery allows the use of waste from one industry as secondary raw materials for another, while ensuring the saving of primary natural resources (fuel).
ECONOMIC BALANCE OF THE SORTING LINE FOR MUNICIPAL WASTE PROCESSING
Authors: Zyder Vaclav , Chlopecky Jakub , Hubacek Jaroslav , Rokosz David , Hrouda Matej
Published: December 2024

The contribution focuses on the optimization of the economic balance of the sorting line for the processing of municipal waste with the aim of increasing the efficiency and sustainability of waste management. This abstract provides an overview of the key economic aspects that affect sorting line operations, including cost, revenue and financial return analysis. Major cost items include investment in modern sorting line technology, installation and commissioning costs, and operating costs associated with maintenance, energy and labor. On the revenue side, the income from the sale of sorted materials such as plastics, metals and paper and the savings achieved by reducing the volume of waste sent to landfills are analysed. The study also takes into account possible subsidies and financial support available for environmental projects. The economic analysis of a purely municipal project (without the involvement of foreign capital, the involvement of public funds and subsidies) CEVYKO includes an assessment of the overall financial efficiency, the identification of potential risks and obstacles, and the proposal of measures to increase profitability and sustainability. Special emphasis is placed on long-term economic and environmental benefits, including improving the local economy, creating jobs and reducing the ecological footprint. The results of this analysis provide valuable information for decision-making processes and strategic planning in the field of municipal waste management. The recommendations arising from this study support the efficient allocation of resources and contribute to the achievement of the CEVYKO project goals. in the field of economic sustainability.
EUROPEAN UNION FARM TO FORK STRATEGY: FERTILIZER USE REDUCTION POSSIBILITIES
Authors: Pilvere Aija , Pilvere Irina , Upite Ilze , Nipers Aleksejs
Published: December 2024

In the European Union (EU), food production needs to become more sustainable and environmental-friendly. Farmers play a crucial role in sustainable agricultural practices on their farms because one of the goals of the EU Farm to Fork Strategy is to reduce nutrient losses by at least 50%, while ensuring that there is no deterioration in soil fertility, which could reduce fertilizer use by at least 20% by 2030. Therefore, the aim of the present research is to examine fertilizer consumption in EU Member States and to assess the impact of the potential fertilizer use reduction by at least 20% by 2030 on value of crop output. The research examined and analysed information on inorganic nitrogen fertilizer consumption in the EU and the Member States in 2016-2021, as such fertilizers account for 89% of the total consumption of mineral fertilizers in the EU. The research applied the monographic method, statistical data analysis and scenario development methods. In 2021 in the EU, inorganic nitrogen fertilizer consumption totalled 9.8 mln. tonnes, which was a 5% decrease compared with 2016. Inorganic nitrogen fertilizer consumption per ha utilized agricultural area, per ha arable land and per 1000 EUR value of crop output varied in EU Member States, which was affected by the composition of agricultural production, technologies applied and other factors. The research analysed a possibility to achieve the target set by the Farm to Fork Strategy � to reduce N fertilizer use by 20% by 2030 � through designing two scenarios. However, achieving this target would probably lead to a decrease in value of crop output. It would be desirable to set different rates of reduction of inorganic nitrogen fertilizers for the Member States, depending on the intensity and effectiveness of the previous use of nitrogen fertilizers.
THE ROLE OF WORKPLACE DIGITIZATION IN ACHIEVING SUSTAINABILITY
Authors: Cristescu Marian Pompiliu , Mara Dumitru Alexandru , Nerisanu Raluca Andreea , Lia-Cornelia Culda , Niculae Oprea
Published: December 2024

Using data from the Eurostat datasets on employee computer and internet use (ISOC_CI_CM_PN2, measured as a percentage of total employment) and resource productivity (ENV_AC_RP, measured in Euro per kilogram) across the European Union between 2014 and 2022, this paper investigates the potential effects of these technologies on sustainability efforts within companies. Using the economic value produced per kilogram of material used as a proxy for resource utilization efficiency, the study seeks to establish a relationship between the level of technology use in operations and resource utilization efficiency. Through an analysis of these connections, the study aims to highlight how workplace digitization and resource efficiency as a strategic priority might support the larger goals of sustainable development. It specifically looks into whether an improvement in resource productivity is correlated with a higher rate of employee adoption of digital tools, implying that digital technology can lead to more environmentally friendly business practices. The results are anticipated to show that businesses who embrace digitalization and place a high priority on resource efficiency not only increase their economic performance but also their sustainability profile, underscoring the dual advantages of these approaches.
TOOLS FOR DECISION-MAKING IN THE FIELD OF REGIONAL DEVELOPMENT FOCUSED ON THE NEEDS OF CLIMATE CHANGE THROUGH BLUE-GREEN INFRASTRUCTURE
Authors: Pagac Jakub , Gubanova Monika , Mokra Alexandra Pagac
Published: December 2024

In the present, regional policy faces the demanding task of developing suitable decision-making tools for regional development that will effectively take into account the need to mitigate climate impacts. Blue-green infrastructure (BGI) emerges as one of the most promising tools in this field. BGI represents an integrated approach that harnesses the synergistic effect of natural and civic systems to manage water, regulate climate, and protect biodiversity. This comprehensive approach not only helps reduce the risks of floods, soil erosion, and drought but also contributes to improving the environment and the quality of life of residents. In our contribution, we focus on the agricultural landscape interconnected with the urbanized part of the Nitra region. In the Nitra region, which includes not only the city of Nitra but also 12 urban districts with 39 surrounding municipalities and a total population of 164,820, the construction of an extensive BGI network is proposed as a crucial part of measures to adapt to climate change. This network of natural and semi-natural measures is to be closely integrated into regional development plans with the aim of supporting sustainable development and increasing the region's resilience to ever-growing climate challenges. Our contribution informs the reader about the benefits of BGI in the design of the concept of regional development as a requirement set by the state based on the strategy of building elements to mitigate climate change with an emphasis on landscape activities and the urbanized landscape.
GPT MODELS IN HIGHER EDUCATION: CHALLENGES AND OPPORTUNITIES
Authors: Rozek Karolina
Published: December 2024

This article explores the challenges and opportunities presented by the integration of GPT (Generative Pre-trained Transformer) models in higher education. It examines the implications for teaching methodologies, student engagement, and the potential risks associated with the reliance on AI tools in academic settings. It highlights the benefits of AI in providing personalized, efficient and flexible learning environments, enhancing student engagement, and supporting individualized learning. However, it also addresses significant concerns regarding the potential oversimplification of academic tasks, the decline in students� critical thinking skills, and the challenges educators face in effectively incorporating AI tools without causing distractions. The article emphasizes the need for a balanced approach in integrating AI into academic education, ensuring that technology enhances rather than undermines the learning experience, and aligns with contemporary educational demands. Future research directions are suggested to better understand the direct impacts of AI tools like ChatGPT on student learning and academic integrity.
THE TRANSFORMATION OF EDUCATIONAL MODELS AS THE KEY FACTOR OF ECO-INNOVATIONS
Authors: Muizniece Katrina , Pilecka-Ulcugaceva Jovita , Siltumens Kristaps , Butenaite Dace , Grinfelde Inga
Published: December 2024

Eco-innovation is a crucial factor in the drive towards sustainable development, albeit a knowledge-intensive process that requires a fundamental transformation of the education system. The focus should be on sustainable education, characterized by holistic approaches, strategic planning and transformative change. Key elements are learning experience systems that include cognitive understanding, practical skills, social cohesion and emotional intelligence. As UNESCO points out, eight key competences - systemic thinking, forecasting, regulatory and strategic approaches, cooperation, critical thinking, confidence and integrated problem solving - are essential for achieving the SDGs. The aim of this study is to examine the impact of learning methods on students' involvement in the creation and implementation of eco-innovations. The study involved first year students who were split into two groups. The first group was a traditional learning group that took a course of study using traditional lectures and a test of theoretical knowledge. The second group was the active learning group, where students were involved in the study process and active learning methods were used. The next year of study, the active learning group showed better results on an environmental technology study course, as well as taking part in hackathons where eco-innovations were created.
A BIOBASED NANO/MICRO-STRUCTURED MATERIAL FOR MICROORGANISMS� IMMOBILIZATION
Authors: Armanu Emanuel Gheorghita , Secula Marius Sebastian , Cimpoesu Nicanor , Heipieper Hermann J. , Volf Irina
Published: December 2024

Microbial immobilization is a promising strategy for various applications, including environmental remediation and bioprocess engineering. However, the efficacy of immobilization largely depends on the characteristics of the carriers. Biomass wastes are renewable and abundant resources that can be subjected to hydrothermal carbonization (HTC) for hydrochar production, a resulting carbonaceous material with a porous structure. This porous architecture offers extensive surface area and facilitates the colonization and growth of microorganisms, working as a protective buffer zone in highly polluted environments. This study points out the development of a novel biobased nano/micro-structured material for microorganism immobilization, integrating locally available feedstock for thermochemical conversion processes. To tailor a bio-based porous material suitable for bacterial immobilization, the biomass waste was processed through HTC. The influence of main HTC parameters on biomass conversion was established. Chemical, structural, and thermochemical analyses, encompassing proximate and ultimate analysis, Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Chemical Composition Analyzer (EDS) and Thermogravimetric analysis (TGA), were conducted on both the feedstock and resulting hydrochar. SEM analyses revealed the nano/micro-structured morphology of the hydrochar, characterized by a wide distribution of pores ranging from nano to micrometer scale. A bacterial strain of Pseudomonas sp. was immobilized on hydrochar in order to evaluate the bacterial cell proliferation, their capacity and rate of forming stable colonies on the support material. The hydrochar obtained from locally biomass feedstocks represents an eco-friendly and sustainable biobased nano/micro-structured material, with promising applications in bioremediation and bioprocess engineering, thereby advancing green technologies and circular bioeconomy initiatives.
The Impact of Different Light-Reflecting Materials Compositions of (LaBr3:Ce) Scintillation Detector on Spent Nuclear Fuel Gamma Spectrum
Authors: El-Tayebany R. A.
Published: December 2024

The Scintillation detectors are extensively employed in nuclear safeguards, nuclear security fields, radioactive material testing, and physics research. Light-reflecting materials of (LaBr3:Ce) scintillation detectors positively affect their ability to capture light. Our goal is to investigate the characteristics of various reflectors by MCNPX code. In this paper, high-activity fission products from the spent fuel, identified as the utilized radionuclides 152Eu, 154Eu, 134Cs, 137Cs, and 243Cm, have been used in the simulation. Also, short-lived fission products, and short-lived actinides (239U and 239Np), which have decay heat in the timeframe of severe accident analysis, have been included. The findings of this investigation are consistent with the discovery that LaBr3:Ce delivers superior resolution. Additionally, some closely spaced peaks in the spectra of numerous radioisotopes could be resolved by the LaBr3:Ce detector. With different energy lines, the spectral responses of the scintillators' various reflectors were evaluated.
Ground-Based Gamma-Ray Spectrometer Application on Drone-Borne: Suitability and Height Attenuation
Authors: Syaeful H. , Muhammad A. G. , Rachael Y. , Pratiwi F. , Rosianna I. , Ngadenin N , Indrastomo F. D. , Ciputra R. C. , Sukadana I. G. , Adimedha T. B. , Karunianto A. J.
Published: December 2024

Rapid development in the use of unmanned aerial vehicles (UAVs) in many applications, such as topographic mapping, agricultural management, marine monitoring, and others, has also brought the radiometric mapping application to this drone-borne application. Before the application, several corrections are performed to the data, including stripping corrections obtained from calibration results and height attenuation corrections. This study aims to determine the effectiveness and the height attenuation of the ground-based spectrometer attached to the drone. The method is carried out to determine the optimal altitude and conduct direct testing in the field of a small detector of 0.1 l of RS-125 gamma-ray spectrometer using drone-borne radiometric applications. In ideal conditions without obstacles in the flying path, 15 m is considered the ideal height, proportional to the detector size. Based on the results of field measurements at a drone height of 24 m, the comparison of drone and ground data is acceptable for dose rate, thorium, and potassium concentration with Pearson correlation of 0.67, 0.49, and 0.45, respectively. The drone measurement result is less acceptable for uranium data, with a Pearson correlation of 0.05 to the ground measurement. In conclusion, the RS-125 gamma-ray spectrometer is generally suitable for drone-borne radiometric applications.
Radiation Dose Calculation Analysis During The Dismantling of Disused Sealed Radioactive Sources at CNESTEN: MCNP Code Simulation Results
Authors: El Azzaoui B. , Kabach O. , Outayad R. , Messous M. Y. , Bergaoui K. , Nbaoui K. , Kadiri J. , Chakir E. , Alibrahmi E. , Kharchaf A.
Published: December 2024

Disused Sealed Radioactive Sources (DSRS) present significant risks of radiation exposure and environmental contamination during dismantling. Despite their sealed nature, DSRS can emit ionizing radiation, necessitating careful management to mitigate health risks. This article presents the MCNP simulation results of dosimetric operational quantities, namely Hp(3), Hp(10), and H(0.07), for hands and feet. This study focuses on a 60Co source, due to its high radiation energy levels and widespread use in various socioeconomic sectors. The assessment of radiation exposure levels enabled the improvement of occupational radiation protection measures related to critical areas and steps in the dismantling process. According to the obtained results with the 60Co source at its initial activity, and considering the maximum task duration, the dismantling process contributes to approximately 72.35 % of the daily dose limit of 80 µSv for worker category A, for the whole body. Therefore, these findings can contribute to a better understanding of radiation exposure risks and confirm compliance with regulatory requirements.
Radiation Dose Prediction for Cervical Cancer Patients Using IMRT Technique with a Machine Learning Model Based on Support Vector Regression (SVR)
Authors: Mushaddaq R. F. , Sihono D. S. K. , Prajitno P.
Published: December 2024

Cervical cancer poses significant global health challenges, necessitating the need for innovative treatment approaches. This study addresses the gap in current radiotherapy methods by integrating Support Vector Regression (SVR) to predict radiation doses for cervical cancer treatment, thereby enhancing the precision of Intensity Modulated Radiation Therapy (IMRT). Using datasets from 102 and 173 cervical cancer cases, we developed and validated an SVR model to predict dose distributions based on radiomic and dosiomic features. The model demonstrated strong performance, achieving a Mean Absolute Error (MAE) of 0.069 for the testing data, with specific performance metrics as follows: bladder mean dose MAE of 0.0693, bowel mean dose MAE of 0.0926, and rectum mean dose MAE of 0.0779. These findings highlight the potential of machine learning to refine radiotherapy planning, reduce the workload on medical physicists, and improve patient outcomes. Future research should focus on expanding dataset sizes and enhancing model precision, particularly for anatomically challenging regions.
Asignación de recursos financieros y su incidencia en la prestación de servicios hospitalarios en el Hospital General Portoviejo IESS, ejercicios económicos: 2022 y 2023
Authors: Rivera-González Mercedes Adelina , Ruiz -Cedeño Angelica Beatriz
Published: December 2024

Al gestionar la asignación de recursos financieros de manera responsable, se puede adquirir equipos médicos modernos, mejorar la infraestructura física y asegurar el suministro de medicamentos y materiales necesarios para brindar una atención de calidad a los usuarios. Bajo este enfoque, el objetivo de la presente investigación consistió en “Analizar la asignación de recursos financieros y su incidencia en la prestación de servicios hospitalarios en el Hospital General Portoviejo IESS, ejercicios económicos: 2022 y 2023”. Para cumplir con el objetivo principal se procedió al establecimiento de una metodología de tipo documental citando referencias de tesis de posgrados, libros, informes y artículos científicos afines. Mientras que, para la implementación de la investigación de campo se empleó la técnica de la observación. Adicionalmente, se aplicaron encuestas dirigidas a los colaboradores del área administrativa y financiera del Hospital. Por otro lado, para el tratamiento y análisis oportuno de los datos, se empleó el método descriptivo. Los resultados obtenidos se procesaron mediante la hoja de cálculo de Microsoft Office Excel. Finalmente, se concluye, que establecer una gestión adecuada en la asignación de recursos financieros del presupuesto del Hospital permite reflejar una posición clara y realista respecto de los recursos disponibles y las necesidades médicas, para brindarle cobertura a los usuarios del servicio.