bluuebunny/crossref_metadata_2025 huggingface dataset:
Immunological Aspect of Septic Shock
Authors: Al-Obaidy Abdulameer Kareem. Leelo , Abdullah Saafa Ressan , Al-Difaie Rana Saleh , Abdulameer Hawraa
Published: January 2025

Septic shock is clinically characterized by hypotension necessitating vasoactive support that fails to react to fluid resuscitation in patients with suspected or microbiologically confirmed infections leading to severe organ failure without an identified etiology. Predisposing factors for septic shock arises when the body’s reaction to an infection impairs tissue perfusion and oxygen utilization, resulting in end-organ malfunction and heightened mortality risk. The etiologies of septic shock differ between adults and children. The mechanisms contributing to the predisposition for severe sepsis are numerous: diminished complement levels, children’s exposure to outdoor environments or crowded settings, reduced protein levels, accelerated metabolic rates, heightened incidence of heart failure, prior antidotal or clinical exposure, and fluctuating rates of infections caused by pathogenic organisms. Endothelial dysfunction, a primary cause of septic shock, impairs microvascular perfusion and tissue oxygenation in sepsis. Septic shock is commonly linked to coagulation disorders and a heightened prevalence of venous thromboembolism. The principal phases of biomarkers in septic pathobiology encompass a pro-inflammatory and anti-inflammatory phase, along with cellular dysfunction. In summary, the cytokines and chemokines IL-1β, IL-6, IL-8, IL-18, and CCL2 possess considerable predictive significance for septic shock. The new personalized medicine that considers significant immunological indicators may result in more focused therapies in the future. The primary message of this immunological approach is that inflammation, which significantly contributes to the progression of septic shock, is an early occurrence in its pathogenesis.
Spread and development of Verticillum wilt or cotton wilt in the western part of Azerbaijan
Authors:   Institute of Plant Protection and Industrial Crops, Republic of Azerbaijan, Huseynova Lale
Published: January 2025

Almost 136 thousand hectares of cotton crops in Azerbaijan, the unique climate allows growing almost all cultivars of cotton. More than half of the cotton crops are in the Ganja-Kazakh geographical zone of the country. The development of cotton growing in Azerbaijan as a highly profitable sector of the economy is inextricably linked not only with active selection work, the introduction of new cultivars and progressive technologies, but also with the creation of an effective set of protective measures. In recent years, with the increase in areas under cotton and the growth of its productivity, the likelihood of the spread of harmful mycoses has significantly increased. Among the widespread diseases in cotton crops, Verticillium wilt occupies a special place. Verticillium wilt is a very harmful disease. During its development in the plant, the osmotic pressure and cell turgor decrease, transpiration increases, the flow of water and minerals to the roots and aboveground organs of the plant slows down, the parenchymatous cells of the wood die off and the leaves fall prematurely, which leads to a sharp decrease in the yield and quality of cotton. In connection with the above, the objective of our research was to study and diagnose verticillium wilt of cotton in the conditions of the western part of Azerbaijan. In the 2022-2024 research years, an assessment was made of the prevalence and intensity of verticillium wilt of cotton in the region, and a scientifically based and improved control system was developed. For this purpose, the following preparations were tested in the fight against verticillium wilt of cotton: Kolosal Pro, EC, Fitolavin, VRK and control without chemical treatment. Analysis of the conducted field studies show that the fungicide Fitolavin, VRK on all cultivars of cotton showed high biological efficiency against the disease.
The in vitro evaluation of the antifungal potential of natural Capsicum annuum L. extract and synthetic compounds against the pathogens Alternaria spp. and Fusarium oxysporum.
Authors:   National Research and Development Institute for Biotechnology in Horticulture, Stefanesti-Arges,  Romania, Din Alin , Sărdărescu Ionela ,   National Research and Development Institute for Biotechnology in Horticulture, Stefanesti-Arges,  Romania, Vizitiu Diana Elena ,   National Research and Development Institute for Biotechnology in Horticulture, Stefanesti-Arges,  Romania, Sumedrea Dorin Ioan ,   National Research and Development Institute for Biotechnology in Horticulture, Stefanesti-Arges,  Romania, Vilcoci Denisa ,   Regional Center of Research and Development for Materials, Processes and Innovative Products Dedicated to the Automotive Industry (CRC and D-AUTO), National University of Science and Technology Politehnica Bucharest, Pitesti University Centre, Romania, Cirstea Georgiana ,   Regional Center of Research and Development for Materials, Processes and Innovative Products Dedicated to the Automotive Industry (CRC&D-AUTO), National University of Science and Technology Politehnica Bucharest, Pitesti University Centre, Romania, Mihăescu Cristina ,   Regional Center of Research Development for Materials, Processes and Innovative Products Dedicated to the Automotive Industry (CRC&D-AUTO), National University of Science and Technology Politehnica Bucharest, Pitesti University Centre, Romania
Published: January 2025

In the last decade, interest in organic agriculture has been steadily gaining ground, leading to studies on the control and management of phytopathogens using plant extracts and essential oils. This study aimed to evaluate the in vitro antifungal potential of the natural extract obtained from the Capsicum annuum L. species, as well as synthetic compounds, as a control method against the pathogenic fungi Alternaria spp. and Fusarium oxysporum. The natural extract was used in four different concentrations (0.5%, 2%, 9%, and 12%) and was characterized in terms of total polyphenol content (TPC) using the Folin-Ciocâlteu spectrophotometric method, as well as its antioxidant activity using the DPPH radical scavenging method. The results of this study, in which Capsicum annuum L. extract was used, demonstrated high efficacy, showing an inhibitory percentage of 33.33% against the pathogen Alternaria spp., and 21.90% against the pathogen Fusarium oxysporum. Regarding the efficacy of synthetic products, it can be said that the mancozeb-based product at a concentration of 0.2% exhibited a strong antifungal effect on both pathogens, with an inhibition percentage of 100%.
On-station Development and Testing of Small Ruminant Feedlot Finisher Ration as Business for Vulnerable Groups in Kenya
Authors: Tabu Joseph
Published: January 2025

Dorper sheep finisher ration is lacking in the Kenyan markets. The weight target is currently achieved within a longer period of approximately 2-3 years in pastoral livestock production systems. This study was carried out to formulate and test a cost-effective finisher ration for small ruminants to reach a targeted market weight of 45–50 kg within 6-7 months. Thirty entire male Dorper-weaner lambs aged 3-4 months with an average initial body weight of 23.3 kg ± 2.4 were used in a controlled on-station feeding trial. The treatments were three energy levels (9.0, 10.0, and 11 MJ ME Kg-1 DM) and three crude protein levels (12, 14, and 16% DM), with Rhodes grass hay as the control diet in a Complete Randomized Design (CRD). The response variables were feed intake (FI), average daily weight gain (ADG), total weight gain (TWG), and final slaughter/market weight. A one-way analysis of covariance (ANCOVA) for comparison of means of the response variables was conducted. The ANCOVA results of the experimental rations and control showed that FI (1.72 kg sheep-1 day-1) was statistically significant () for ration 8 (TR8 (11 MJ kg-1 DM & 14% CP). The mean results indicated that TR8 had the highest ADG mean (0.31 kg/day) and TWG (26.5 kg), thus it was considered the best performing test diet (p<0.05). Significant peak final slaughter weights (p<0.05) in TR8 (46 kg), TR6 (43 kg), and ration 9 (41 kg) were observed at the age of about 5-6 months old. Acceptable final slaughter weights of 46–50 kg were recorded in rations TR6, TR9, and TR8. Dorper sheep receiving ration TR8 reached the highest (p<0.05) slaughter weight (50 kg) at 7 months old post-weaning. In conclusion, test ration with a combination of 11 MJ kg-1 DM of energy level and 14% CP (TR8) had the highest ADG in the shortest period of 6 months old and can be recommended for adoption to finish Dorper sheep to reach market weight of up to 50 kg within 6-7 months old.
Consumer Challenges of the Socio-Economically Disadvantaged in South Africa and the Role of Consumer Legislation
Authors: Tentu Lindeka , Reddy Karunanidhi
Published: January 2025

In South Africa, high poverty and low literacy rates significantly affect the consumer market, especially for vulnerable individuals in disadvantaged communities. These consumers encounter difficulties when dealing with suppliers, including purchasing inferior quality goods, facing higher prices, and needing to make multiple trips to stores. This disparity is pronounced within the market, which encompasses literate ordinary consumers and vulnerable individuals with low literacy levels or illiteracy. Due to their socio-economic challenges, these vulnerable consumers often tolerate unethical business practices and find it challenging to access legal support. Through a quantitative survey, this article explores consumer challenges faced by socio-economically disadvantaged individuals in Illovo Township, Bhekulwandle, KwaZulu-Natal, South Africa. The study is grounded in the Consumer Justice Theory, and advocates for equitable treatment and protection of historically disadvantaged consumers under relevant consumer protection legislation. The findings reveal that socio-economically disadvantaged consumers face challenges with complex contracts, lack of legal recourse due to financial constraints, and lengthy cancellation processes, leading to acceptance of poor service. Awareness of consumer rights remains low among respondents. However, the article concludes that the government, suppliers, and consumer bodies bear a significant responsibility to ensure equal protection for all consumers, particularly those from disadvantaged backgrounds.
Slum Politics in Jakarta: Comparison of Slum Areas in Karet Tengsin and Guji Baru based on Urban Social Movement Theory
Authors: Febriali Sahl Dafiq , Nurisha Kitana
Published: January 2025

The city is a complex reality that reflects the struggle for political, economic, and cultural spaces and resources amidst limitations and contingencies in achieving justice for all city residents. The concepts of the Right to the City and Urban Social Movements, as explored in urban political literature, serve as an exploratory framework for this qualitative-descriptive research. They help to understand the struggles for the right to the city through urban social movements in Karet Tengsin and Kampung Guji Baru, Jakarta. This study employs both primary and secondary data collection methods. Primary data were gathered through interviews with three key informants: two activists from Tim 9 in Karet Tengsin and one activist from Serikat Perjuangan Rakyat Indonesia (SPRI) in Kampung Guji Baru. These interviews were further supported by direct observation conducted over approximately one month in both areas. Secondary data, including literature from books, scientific journals, and media reports, complement the analysis and provide insights into the empirical realities of urban social movements by slum residents in Jakarta. The findings demonstrate distinct differences in the models, types, and demands of struggles for the right to the city as exhibited by Tim 9 in Karet Tengsin and SPRI in Kampung Guji Baru. Moreover, the empirical evidence descriptively concludes that the Jakarta government has yet to fully realize the right to the city, particularly in providing access to adequate housing and sustainable livelihoods (collective consumption).
FEATURES OF THE INTRODUCTION OF CORPORATE TAX IN THE UNITED ARAB EMIRATES
Authors:   Almaty   Universityof   Humanities   and   Economics, Seidakhmetova F. , Kulubekov M. ,   Kostanay Engineering Economic University named after М. Dulatov
Published: January 2025

This article provides information about corporate tax (hereinafter referred to as CIT) and its features, as well as the rules and procedure for application in the UAE. Certain aspects of the UAE's legislative framework for the introduction of the CPN regime are disclosed, a list of organizations that are exempt from paying CPN is provided, the meanings of the concepts of EBITDA "Earnings Before Interest, Taxes, Depreciation and Amortization" BEPS "Base Erosion and Profit Shifting" are highlighted and patterns, opportunities and consequences of their introduction are revealed. In recent years, the UAE has taken drastic measures to diversify the economy and create favorable conditions for attracting foreign investment and entrepreneurs. These changes were primarily aimed at combating the erosion of the tax base and transparency of the movement of profits of companies and individuals operating in the UAE. When forming the CPN, the UAE Government relied on the best international tax practices aimed at accelerating development.
Exploring the Non-Linear Relationship between Ownership Structure and Performance in Family-Owned Businesses: A Study of 77 Family-Owned Listed Firms
Authors: PAGANOU Savvina I. , , ANTONIADIS Ioannis , SPINTHIROPOULOS Konstantinos
Published: January 2025

Family businesses play a crucial role in the Greek economy, yet their governance and performance dynamics remain underexplored. This study investigates the non-linear relationship between ownership concentration and firm performance in 77 family-owned businesses, alongside a combined sample of 110 firms (family and non-family) listed on the Athens Stock Exchange between 2016–2022. Addressing gaps in the literature, which predominantly focus on linear relationships, this research offers insights into how ownership thresholds impact financial outcomes such as Return on Assets (ROA). The study identifies a U-shaped relationship between ownership concentration and performance using fixed-effects panel data analysis. Findings reveal that performance initially declines as ownership concentration increases, reaching a turning point at approximately 32%, after which it improves significantly. This pattern highlights the dual impact of ownership: excessive concentration can create inefficiencies, but beyond a threshold, it aligns incentives, motivating families to enhance business value and mitigate conflicts with minority shareholders. The study emphasizes the need for further research to explore industry-specific effects, extended timeframes, and variations in ownership thresholds, especially within diverse economic contexts, to better understand the complex dynamics of family ownership and performance. This work provides valuable contributions to corporate governance literature and practical implications for policymakers, investors, corporate stakeholders, and family business leaders seeking to optimize governance strategies.
Unveiling the Impact of Psychological Contract Breach: The Moderating Role of Mindfulness in Job Performance, Burnout, and Turnover Intention
Authors:   University of Pécs, H-7622 Pécs, Rákóczi út. 80., Hungary, Safitri Dina , Hartartiyanto Gafar ,   General Hospital Ciracas, East Jakarta, Indonesia
Published: January 2025

This study explores the influence of psychological contract breach on key behavioral outcomes—turnover intention, job performance, and burnout—among Indonesian nurses, while considering mindfulness as a moderating factor. Given the increasing application of mindfulness in enhancing mental and psychological well-being as therapy, its specific effects on workplace behavior among nurses remain underexplored. To fill this gap, the study surveyed 165 nurses across Indonesia using a non-probability purposive sampling method. The analysis revealed was conducted using SmartPLS version 4.0, which included preliminary assessments of reliability and validity, followed by hypothesis testing through structural equation modelling. The results demonstrated that PCB negatively influenced both turnover intention and burnout, consistent with previous research. However, contrary to expectations, PCB positively impacted job performance. Mindfulness did not significantly moderate the relationships between PCB and job performance, turnover intention, or burnout. These findings suggest that while PCB detrimentally affects turnover intention and burnout, it may also lead to increased job performance, possibly as a compensatory response. The limited moderating effect of mindfulness highlights the need for more comprehensive strategies to address the adverse outcomes of PCB. These findings underscore the complex relationships between psychological contract breaches and employee behavior, emphasizing the necessity for healthcare institutions to address psychological contract issues and promote mindfulness practices to improve job performance and reduce burnout and turnover intention.
The Cat and the Castle
Authors:   Université Paris 8 Vincennes–Saint-Denis, Cixous Hélène
Published: January 2025

The original version of this text was written and read by Hélène Cixous on the occasion of the reception of the Principauté prize given by the Fondation Prince Pierre de Monaco, on 13 October 2021, at the Maison de l’Océan in Paris. It appears here in English for the first time, based on Peggy Kamuf’s original translation, with subsequent revisions and annotations.
Fidélité à plus d’une langue
Authors:   Universität Heidelberg, Herbrechter Stéphane
Published: January 2025

It is twenty years since Jacques Derrida’s passing. This commemorative piece mixes personal memories of encounters with emphasizing a major theme within the Derridean corpus, namely ‘fidelity’, or, to be more precise, the impossible fidelity to the more than and no longer one (plus d’un) that Derrida used to give as a (risky) definition of deconstruction. This plurilingual creation playfully explores the ways in which the idea of a fidelity to more than one language impacts on translation and its possible impossibility or its impossible necessity, and asks what happens to the multilingual subject ‘in-between’ languages.
A plus d’un titre
Authors:   University of Southern California, Kamuf Peggy
Published: January 2025

This essay, in multiple voices, traces figures of plurality and multiplicity across Derrida’s work and the leverage they provide against several metaphysical concepts. It pays special attention to titles that employ plurals, of which there are very many, and to the pluralization of proper names. There is particular focus on Fichus, Specters of Marx, The Animal That Therefore I Am, as well as a number of other major texts.
ANALYSIS OF FRACTURE GEOMETRY IN FLUID DRAINAGE AFTER HYDRAULIC FRACTURING. CASE OF WINK MS-09 IN MAKELEKESE FIELD, D.R. CONGO
Authors:   University of Kinshasa, Faculty of Petroleum, Gas and New Energies, D.R. Congo; e-mail: rachidiopuluku1@gmail.com, Opuluku Rachidi , Etshekodi Lohadje Joel ,   University of Kinshasa, Faculty of Petroleum, Gas and New Energies, D.R. Congo, Kimpesa Dyese Olivier ,   University of Kinshasa, Faculty of Petroleum, Gas and New Energies, D.R. Congo, Kingombe Manianga Gracias ,   University of Kinshasa, Faculty of Petroleum, Gas and New Energies, D.R. Congo, Iyolo Lungembo Jean ,   University of Kinshasa, Faculty of Petroleum, Gas and New Energies, D.R. Congo, Akili Bihivu Dirk ,   University of Kinshasa, Faculty of Petroleum, Gas and New Energies, D.R. Congo
Published: January 2025

In this paper, we analyze stimulation by hydraulic fracturing with the aim of establishing a relationship between fracture geometry and hydrocarbon drainage. Believes fracturing geometry is an effective means of predicting the productive capacity of a hydrocarbon reservoir and the productivity of a well stimulated by hydraulic fracturing is closely linked to the fracturing geometry. Demonstrate the impact of fracturing geometry on the productivity of a hydrocarbon reservoir. Characterize the different parameters of the fracturing geometry while determining the link between these parameters; highlight the difference between the productivity of the reservoir before and after fracturing and monitor the evolution of productivity in relation to this geometry.
STRUCTURAL MODELLING OF THE OIL POTENTIAL OF THE WEST CONGOLIAN SUB-BASIN THROUGH THE IDENTIFICATION OF GEOLOGICAL STRUCTURES AND GRAVIMETRIC ANOMALIES
Authors:   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo; email: oseemayinga888@gmail.com, Mayinga Osée Mayinga , Etshekodi Lohadje Joël ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo, Tondozi Keto Franck ,   Physics Department, Faculty of Science, University of Kinshasa, D.R. Congo, Monkenya Prosper Aida ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo, Monza Marlin Agolo ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo
Published: January 2025

The Democratic Republic of Congo has significant hydrocarbon reserves in its subsoil. The western Congo sub-basin is less explored in terms of oil potential. This study contributes to enriching the subsoil geological data by highlighting geological structures of major interest for oil exploration. This sedimentary basin is located in the Congo-Central province of the Democratic Republic of Congo and represents the main hope for oil prospects. With regard to the potential of this basin, it is worth mentioning that the presence of source rocks, oil showings, the presence of anticlines and faults identified in this study constitute potential traps for hydrocarbons. To date, the Western Congo sub-basin has been relatively unexplored. The satellite data have been compared with the tectonic field model in order to highlight the structural patterns of this vast basin. This research is crucial for informing future exploration initiatives and unlocking the hydrocarbon potential of the region, thus contributing to the country’s economic development.
A COMPARATIVE STUDY OF DEEP LEARNING METHODS APPLIED FOR WASTEWATER pH NEUTRALIZATION PROCESS MODELLING
Authors:   Petroleum-Gas University of Ploiesti, Romania, email: mcarbureanu@upg-ploiesti.ro, Carbureanu Madalina
Published: January 2025

In a wastewater treatment plant (WWTP) there are several different, intricate processes with a dynamic and nonlinear behaviour. The fact that these processes are nonlinear, some of them having a high degree of nonlinearity, as is the wastewater pH neutralization process, comes with a number of problems related to their modelling and control. The identification of any method that can be used to simplify the modelling and control of such a high nonlinear process, it is a desideratum to ensure a quality effluent of the plant, because its water quality is affected by the treated wastewater discharged into it. The Deep Learning (DL) and Machine Learning (ML) techniques offer incredible solutions that can be explored in order to find out the optimal tool that can be used for wastewater pH treatment process modelling. In the present paper, seven DL solutions were implemented and tested in order to identify the most appropriate DL method for modelling this type of process, method that ensures the best result. The analysed DL methods are Feedforward Neural Networks (FNNs), Temporal Convolutional Networks (TCNs), Recurrent Neural Networks (RNNs), Long Short-Term Memory (LSTM), General Regression Neural Networks (GRNNs), Time Delay Neural Networks (TDNNs) and Deep Belief Networks (DBNs), being implemented using Python 3.9 software and Tensorflow. The analysis made with the mentioned DL methods, was based on knowing the flowrate of the acid reactant (which was maintained constant), the initial alkaline reactant flowrate in the treated solution, the initial pH level, and the desired pH level, with the final goal of predicting the required quantity of alkaline reactant flowrate necessary to obtain a neutral pH.
EVALUATING THE ENVIRONMENTAL IMPACT OF DIFFERENT ENERGY SOURCES, FOSSIL OR ALTERNATIVE, THROUGH THE LIFE CYCLE ASSESSMENT METHOD
Authors:   Petroleum-Gas University of Ploiesti, Romania, email: lianabogatu@gmail.com, Bogatu Liana
Published: January 2025

Energy is one of the most important components of a country's economy and development, and fossil fuels ensure 83.4 % of primary energy worldwide.
One of the most debated facts nowadays is the influence of the fossil fuels used as a main energy source, on climate change, in fact the CO2 emissions released by these fuels. Therefore, alternative energy sources have been developed to reduce CO2 emissions, respectively the impact of greenhouse gases, on the environment.
The present study proposes an objective evaluation of different types and sources of energy and a relevant method for assessment of the environmental impact of representative type of energy sources. Consequently, fossil fuels and alternative sources of energy, especially electricity, are evaluated by Life cycle assessment method. Specific power energy of each category of combustibles, as well as their specific emission of CO2, SOx and NOx, are highlighted and discussed.
The study emphasized that the impact of different energy sources has to be attentively analyzed in order not to actually generate more serious environmental consequences.
RESEARCH CONCERNING THE POSITIONAL ANALYSIS OF A FOURTH CLASS MECHANISM
Authors:   Petroleum-Gas University of Ploiesti, Romania, e-mail: georgeta.toma@upg-ploiesti.ro, Toma Georgeta
Published: January 2025

It is well known that with the increase in the class of mechanisms, the complexity of their analysis methods also increases accordingly. This is especially the case for mechanisms of class greater than four that contain kinematic groups whose structure includes deformable contours. The usefulness of these mechanisms is also given by their versatility due to the multiple configurations they can have during the kinematic work cycles. The present paper proposes a method for the positional analysis of a complex mechanism of the fourth class. First, the component independent contours of the mechanism are identified using the graph associated with it. Then, the system of equations containing the position parameters of the mechanism is established by projecting the associated vector contours on the axes of a conveniently chosen coordinate system. Solving the system of equations was done numerically, using the fsolve module included in the Maple program. The results obtained from solving the system of equations allowed the development of a functioning simulator of the analyzed mechanism. Finally, the variation curves of the position parameters on a kinematic cycle of operation are presented.
IoT SOLUTION FOR LEVEL MEASUREMENT IN THE OIL AND GAS INDUSTRY
Authors:   Petroleum-Gas University of Ploiesti, Romania, e-mail: gbucur@upg-ploiesti.ro, Bercea Constantin Octavian
Published: January 2025

The fundamental goal of this work is to investigate and explore the design and construction methods for an intelligent, adaptable and flexible level measurement system, based on IoT (Internet of Things) technology. This automatic data acquisition, transmission and processing system must allow the level of a substance to be measured in a non-intrusive manner. The system also ensures safe operation for personnel servicing the monitored process and allows customization of the presentation of data sets, in a variety of formats, with maximum relevance to the user. The level measurement system proposed in the paper bases its operation on the characteristics of ultrasonic sensors. The intelligent modules of the system process, based on software algorithms, the data from the sensors and communicate them to other microprocessor subsystems for conversions, storage and presentation of the results. This intelligent level measurement system uses two sensor subsystems, with different degrees of complexity, to monitor two reservoirs in a park. These subsystems communicate permanently with a central control unit, the CCU, which collects and processes in real time the data transmitted to it in a WiFi LAN. In order to increase the degree of adaptability of the intelligent system to the measurement needs, it is possible to resort to increasing the number of sensors, placed in various locations, in a park of tanks for the storage of petroleum products.
STUDY OF THE PETROPHYSICAL CHARACTERISTICS OF ROCKS FROM THE LIBWA FIELD IN THE PINDA RESERVOIR IN THE D.R. CONGO COASTAL BASIN
Authors:   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo; email: andre.yelembangu@unikin.ac.cd, Yelembangu Ngwey André , Iyolo Lungembo Jean ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo, Kampata Mbwelele Dona ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo, Ngalamulume Bantu Gustave ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo, Bikayi Tshiani Néhémie ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo, Opuluku Rachidi ,   Exploration-Production Department, Faculty of Oil, Gas and Renewable Energies, University of Kinshasa, D.R. Congo
Published: January 2025

The Libwa field, located offshore the Democratic Republic of Congo (DRC), has significant potential for hydrocarbon exploitation, particularly in the southern part, which remains unexploited. Previous studies have identified various hydrocarbon exploitation opportunities in place, as measured by the volumes of oil in place (STOIIP). However, recent analysis by Perenco DRC highlights the need for additional volumes to meet current production levels in the northern part of the field. The Pinda reservoir, which forms an essential part of the Libwa field, has a porosity of between 15% and 19%. However, it has a very low permeability, averaging less than 2 millidarcies (mD). This low permeability makes it difficult to accurately assess porosity using seismic data, due to minor variations in the geological structure. Ongoing research is aimed at gaining a better understanding of the geological structure of the Libwa field and determining whether additional volumes of hydrocarbons exist in the southern part or in other areas of the field. Understanding the petrophysical characteristics is crucial to optimizing extraction strategies and assessing the economic potential of the reservoir.
THE DEVELOPMENT OF DIGITAL ART IN THE CONTEXT OF ART EDUCATION
Authors: Dzhanaev M.B. , Yazici Bilal
Published: January 2025

This paper examines the place of digital art in Art education and demonstrates how recent developments in digital technology have transformed contemporary art curricula. Over the years, digital art has evolved into an essential element in contemporary education that includes such practices as: Digital painting 3D modeling Interactive media This study explores the role of digital art in curricula, how it might be positioned relative to existing practices and challenges, what new opportunities it creates for students as well as educators. Answering questions through mixed-methods (literature review, survey, interview and case study), the research concluded that 78% of every institution looks to incorporate digital art but in various unclear dimensions. As a result, educators mix conventional techniques of art with digital tools to provide an all-encompassing structure in this field. Nonetheless, among the challenges listed were concerns regarding resource scarcity, technological obsolescence and matters of access and equity. The research demonstrates the potential for digital art to both stimulate creativity and promote innovation, as well as better equipping students with what they will need in a career in contemporary through practicing within contemporary paradigm; however it also highlights worries about traditional skills being rendered valueless. Finally, it reinforces the need for structures that benefit successful deployment such as faculty development and resources. The inclusion of digital art in education is still a work-in-progress, and the process requires more research. The findings of this study provide direction on the state of digital art education and recommendations for future research, stressing an urgency in establishing inclusive pedagogical approaches that are relevant in a rapidly advancing digitally enabled world.
On the presence of high nitrite (NO2-) in coarse particles at Mt. Qomolangma
Authors: Zhang Zhongyi , Ye Chunxiang , Wu Yichao , Zhou Tao , Chen Pengfei , Kang Shichang , Zhang Chong , Jiang Zhuang , Geng Lei
Published: January 2025

Abstract. Atmospheric reactive nitrogen cycling is crucial for maintaining the atmospheric oxidation capacity of background atmosphere on the Tibetan Plateau , with nitrous acid (HONO) and particulate nitrite (NO2-) as important intermediates. During an eleven-day field campaign at the Base Camp of Mt. Qomolangma in spring of 2022, we observed significant enrichment of NO2- in total suspended particulate (TSP) with a mean concentration of 375 ± 386 ng m-3, while NO2- was absent in fine particles (PM2.5). The comparison revealed that NO2- predominately exists in coarse particles. Local surface soil at the sampling site also exhibited high levels of NO2-, with δ15N value similar to NO2- in TSP. This similarity suggests that wind-blown soil is probably the primary source of NO2- in TSP, accounting for the background levels. While concentration changes of water-soluble inorganic ions in TSP and PM2.5 in response to shifts in air mass back-trajectories imply that atmospheric pollutants transported from South Asia may further elevate the NO2-, the specific mechanisms of long-range transport resulting in NO2- accumulation in TSP rather than PM2.5 remain unknown and need to be investigated. Our results reveal an overlooked source of atmospheric NO2-, i.e., soil NO2-, and highlight in remote regions such as Tibet where other sources are limited, wind-blown soil may serve as an important source of atmospheric NO2-. Once lofted into the atmosphere, NO2- may readily participate in atmospheric reactive nitrogen cycling through gas-particle partitioning or photolysis, leading to the production of HONO, OH and NO and thereby influencing oxidation chemistry.
The effect of climate change on the simulated streamflow of six Canadian rivers based on the CanRCM4 regional climate model
Authors: Arora Vivek K. , Lima Aranildo , Shrestha Rajesh
Published: January 2025

Abstract. The effect of climate change on the hydro-climatology, particularly the streamflow, of six major Canadian rivers (Mackenzie, Yukon, Columbia, Fraser, Nelson, and St. Lawrence) is investigated by analyzing results from the historical and future simulations (RCP 4.5 and 8.5 scenarios) performed with the Canadian regional climate model (CanRCM4). Streamflow is obtained by routing runoff using river networks at 0.5° resolution. Of these six rivers, the Nelson and St. Lawrence are the most regulated. As a result, the streamflow at the mouth of these rivers shows very little seasonality. Additionally, the Great Lakes significantly dampen the seasonality of streamflow for the St. Lawrence River. Mean annual precipitation (P), evaporation (E), runoff (R), and temperature increase for all six river basins in both future scenarios considered here, and the increases are higher for the more fossil-fuel-intensive RCP 8.5 scenario. The only exception is the Nelson River basin, for which the simulated runoff increases are extremely small. The hydrological response of these rivers to climate warming is characterized by their existing climate states. The northerly Mackenzie and Yukon River basins show a decrease in the evaporation ratio (E/P) and an increase in the runoff ratio (R/P) since the increase in precipitation is more than enough to offset the increase in evaporation associated with increasing temperature. For the southerly Fraser and Columbia River basins, the E/P ratio increases despite an increase in precipitation, and the R/P ratio decreases due to an already milder climate in the northwestern Pacific region. The seasonality of simulated monthly streamflow is also more affected for the southerly Fraser and Columbia rivers than for the northerly Mackenzie and Yukon rivers as snow amounts decrease and snowmelt occurs earlier. The streamflow seasonality for the Mackenzie and Yukon rivers is still dominated by snowmelt at the end of the century, even in the RCP 8.5 scenario. The simulated streamflow regime for the Fraser and Columbia rivers shifts from a snow-dominated to a hybrid or rainfall-dominated regime towards the end of this century in the RCP 8.5 scenario. While we expect the climate change signal from CanRCM4 to be higher than that from other climate models, owing to the higher-than-average climate sensitivity of its parent global climate model, the results presented here provide a consistent overview of hydrological changes across six major Canadian river basins in response to a warmer climate.
Comprehensive increase in CO2 release by drying–rewetting cycles among Japanese forests and pastureland soils and exploring predictors of increasing magnitude
Authors: Suzuki Yuri , Hiradate Syuntaro , Koarashi Jun , Atarashi-Andoh Mariko , Yomogida Takumi , Kanda Yuki , Nagano Hirohiko
Published: January 2025

Abstract. It is still difficult to precisely quantify and predict the effects of drying–rewetting cycles (DWCs) on soil carbon dioxide (CO2) release due to the paucity of studies using constant moisture conditions equivalent to the mean water content during DWC incubation. The present study was performed to evaluate overall trends in the effects of DWCs on CO2 release and to explore environmental and soil predictors for variations in the effect size in 10 Japanese forests and pastureland soils variously affected by volcanic ash during their pedogenesis. Over an 84 d incubation period including three DWCs, CO2 release was 1.3- to 3.7-fold greater than under continuous constant moisture conditions (p<0.05) with the same mean water content as in the DWC incubations. Analysis of the relations between this increasing magnitude of CO2 release by DWCs (IFCO2) and various environmental and soil properties revealed significant positive correlations between IFCO2 and soil organo-metal complex contents (p<0.05), especially pyrophosphate-extractable aluminum (Alp) content (r=0.74). Molar ratios of soil total carbon (C) and pyrophosphate-extractable C (Cp) to Alp contents and soil-carbon-content-specific CO2 release rate under continuous constant moisture conditions (qCO2_soc) were also correlated with IFCO2 (p<0.05). The covariations among Alp, total Cp/Alp, and Cp/Alp molar ratios and qCO2_soc suggested Alp to be the primary predictor of IFCO2. Additionally, soil microbial biomass C and nitrogen (N) levels were significantly lower in DWCs than under continuous constant moisture conditions, whereas there was no significant relation between the microbial biomass decrease and IFCO2. The present study showed a comprehensive increase in soil CO2 release by DWC in Japanese forests and pastureland soils, suggesting that Alp is a predictor of the effect size, likely due to vulnerability of organo-Al complexes to DWC.
Dispatch Optimisation for a Concentrating Solar Tower Power Plant Under Uncertainty
Authors:   , Mohammadzadeh Navid
Published: January 2025

Concentrating solar plants with thermal energy storage offer a promising solution to store large-scale solar energy and extend the generation profile to take the advantage of more favourable electricity price periods. This thesis developed mathematical models to optimise operation planning and mitigate the influence of uncertainties in weather and electricity market. The proposed methodologies are validated via numerical simulations on a hypothetical plant in Australia, demonstrating an 8% to 15% improvement in profit generation compared to conventional benchmarks.
Clinical Applications of Three-Dimensional Printing in Urological Surgery
Authors:   , Chen Michael
Published: January 2025

This thesis demonstrates emerging roles for 3D printing in urological surgery in the domains of surgical planning and device manufacturing. The process starting from radiological segmentation to the 3D model production is examined and early clinical studies utilising 3D printed models are shown. The thesis examines the accuracy of segmentation, the optimal 3D printed materials and methods, and use of 3D printing for urological equipment to demonstrate a foundation on which further 3D printing use in urology is emerging.
Can Intubate but Not Ventilate Nightmare – Mounier-Kuhn Syndrome- Case Report
Authors: Martic Ana Jurin , Selec Martina
Published: January 2025

The Mounier-Kuhn syndrome (MKS) or tracheobronchomegaly (TBM) is a rare condition of unknown frequency, only 300 cases have been reported [1,2]. It is characterized by significant expansion of the trachea and bronchi and recurrent respiratory infections [3,4]. Our patient was a 60-year-old male with pneumonia, admitted to ICU due to the urge for mechanical ventilation. Ventilation by mask was normal, he was intubated without any difficulty, but mechanical ventilation was impossible due to enormous leakage, bag valve ventilation was only option to deliver any tidal volume. Bronchoscopy revealed the collapse of the distal trachea and the left main bronchus, mucous plaque was removed. Tamponade of the larynx reduced the leakage. MSCT of the neck was made, tracheomegaly and bronchomegaly were described; Mounier Kuhn syndrome was suspected. Further bronchoscopy revealed mucoid impactions filling the bronchi of the lower right lobe. He was weaned and extubated, but oxygenation worsened despite of HFNC, so he was reintubated with larger tracheal tube. Further ventilation was carried out without leakage, a percutaneous tracheotomy was performed 15 days later and he was gradually weaned from mechanical ventilation.
Venous Thromboembolic Disease (VTD) of the Limbs: Epidemiological, Diagnostic and Therapeutic Aspects at the Internal Medicine and Cardiology Department of the Amirou Boubacar Diallo National Hospital (HNABD) of Niamey: About 165 Cases
Authors: Boubacar Dodo , Garba Issoufou , Hammadou Saley , Hama Idrissa , Moctar Maliki Abdoulaye , Mahamadou Dari Mossi , Ali Bonkano , Kimba Souley , Habibou Harouna , Rakia Arab , Souleymane Brah , Ibrahim Ali Touré
Published: January 2025

Introduction: Deep vein thrombosis (DVT) of the lower limbs and pulmonary embolism (PE) are two clinical expressions of the same disease, venous thromboembolism (VTE). DVT and PE share the same risk factors and curative anticoagulant treatment. The aim of our study is to contribute to the knowledge of venous thromboembolic disease (VTE) in its epidemiological, diagnostic and therapeutic aspects in the cardiology department of the Amirou Boubacar Diallo National Hospital in Niamey.

Methodology: This was a retrospective and descriptive study from 01 January 2016 to 31 December 2021 in its first phase, prospective and descriptive from 01 January 2022 to 30 June 2022 in its second phase i.e. 78 months. Our study included patients hospitalized with imaging- confirmed VTE.

Results: One hundred and sixty-five (165) cases of venous thromboembolic diseases were retained over this study period out of all hospitalized patients, which was 4885 patients, i.e. a hospital frequency of 3.37%, the female sex was predominant, i.e. 55% (90 cases) of the sample with a sex ratio of 0.88. The mean age of our patients was 54.07 ± 16.25 years with extremes of 22 and 83 years. The 55.0 - 64.0 age group was the most represented. Risk factors for VTE were dominated by prolonged bed rest with 23.6% of cases, followed by obesity with 14.5% of cases. Dyspnea was the clinical leader with 79.49% of cases in pulmonary embolism (PE) and leg pain in 76.4% of cases in deep vein thrombosis (DVT). One hundred and thirty-two (132) patients had deep vein thrombosis (DVT), of which 108 had proximal DVT (81.81%) and 24 had distal DVT (18.19%). On CT angiography, of the 39 cases of pulmonary embolism (PE), localized obstruction on the right was predominant with 46.15%; it involved the left pulmonary artery in 23.07% of cases. Right axial deviation was the majority electrical abnormality accounting for 36.35% of cases, followed by right ventricular hypertrophy with 27.27% of cases. Pulmonary arterial hypertension, right cavitary dilation and right intra-cavitary thrombi and were the most frequent ultrasound abnormalities, with 12.72% respectively; 9.1% and 9.1% of cases. The death rate was 10.9% of cases.’

Conclusion: Venous thromboembolic disease is a common reason for hospitalization. It can be serious with an often guarded prognosis, hence the need for rigorous management and prevention in patients at risk.
Assessment of Factors Affecting the Return on Equity (ROE) in Banks by the Example of America Bank CJSC
Authors: HARUTYUNYAN GAYANE
Published: January 2025

The article is devoted to the definition, analysis, and evaluation of the main
indicators of profitability in banks. It is no secret that profitability is one of those simple
indicators that allows setting a comprehensive picture of the effectiveness of the bank's
activities. With its help, both external and internal beneficiaries evaluate competitive
advantages and possible changes in the development of the bank's activities and, as a
result, make corporate decisions.
On our part, an attempt was made to analyze the main profitability indicators of
Ameriabank CJSC (hereinafter the bank). Return on Equity (ROE) and Return on Assets
(ROA) for 37 quarters (from the 4th quarter of 2014 to the 4th quarter of 2023) and the
main indicators affecting the latter were analyzed. For this purpose, more than 20
variables were identified and calculated, classified into external and internal indicators.
The analysis was carried out in three main directions:
1. Key indicators (Spread, Net Interest Margin (NIM)) used in international
practice to disclose the policies pursued by banks were calculated and their
dynamics were monitored,
2. A DuPont factor analysis was performed to find out which factors primarily
influenced the bank's policy,
3. A regression model was built to understand exactly what changes in indicators
will make it possible to increase profitability.
As a result, a regression correlation model was built, which made it possible to
accurately predict the bank's ROE for the next period. The result applies to the bank
when the latter wants to change its policy.
Հայաստանի հետբուհական կրթության ներկայի անդրադարձը երկրի ապագայի վրա. անհանգստություններ և մտորումներ / REFLECTING ON THE CURRENT STATE OF ARMENIA'S POST-GRADUATE EDUCATION AND
ITS IMPACT ON THE COUNTRY'S FUTURE: CONCERNS AND THOUGHTS
Authors: VARDANYAN Tatevik
Published: January 2025

The field of science has long been a significant challenge for Armenia, yet it remains crucial for
driving economic and societal development. Therefore, focused efforts to enhance this sector are
essential and must remain a priority, regardless of their scale or scope. In this context, analyzing the
current state of the post-graduate education in Armenia is vital. This analysis will identify the main challenges and threats impeding sustainable socio-economic development and help determine the future
quality of our society and country.