bluuebunny/crossref_metadata_2025 huggingface dataset:
Niveaux de besoins du personnage principal dans le roman L’Enfant de Jules Vallès : une étude de psychologie humaniste d’Abraham Maslow
Authors: Sulistiyowati Fitria , Yulianto Ahmad , Sunahrowi Sunahrowi , Kurniawati Novi
Published: September 2024

L’Enfant est un premier roman de la trilogie de Jacques Vingtras d’autre que Le Bachelier et L’Insurgé de Jules Vallès. L’histoire de ce roman commence par la vie d’enfance de Jacques Vingtras. Dans son enfance, Jacques Vingtras subit toujours la violence de ses parents et un traitement injuste de la part de son entourage. Basé sur ce contexte, cette recherche vise à décrire les éléments psychologiques du personnage principal basés sur le niveau de ses besoins sous la forme de niveaux de besoins vécus par Jacques Vingtras en utilisant la théorie des niveaux de besoins d'Abraham Maslow. L’objet matériel utilisé dans cette recherche est le roman L’Enfant de Jules Vallès. La méthode utilisée dans cette recherche est la méthode qualitative descriptive, et la technique d’analyse est la technique d’analyse de contenu. Les résultats de la recherche ont obtenu 22 données. La conclusion de cette recherche indique que Jacques Vingtras éprouve cinq niveaux de besoins. Les niveaux de ces besoins ont été satisfaits de manière optimale par Jacques Vingtras.
Étude du Pessimisme d'Arthur Schopenhauer du Personnage de Labrouste dans le Roman Sérotonine de Michel Houellebecq
Authors: Hannifah Ummaira , Sunahrowi Sunahrowi , Yulianto Ahmad , Kurniawati Novi
Published: September 2024

La littérature est une forme d'illustration du cœur humain. La littérature émerge à cause d'être de l'homme et porte une forme d'attention au monde réel à travers les âges. Le pessimisme est un acte lorsqu'une personne essaie de lâcher sa volonté et nie toute volonté qui la fait souffrir. L’une de forme de la littérature est un roman. Le roman Sérotonineest un roman de fiction de Michel Houellebecq publiée en 2019 à Paris, France. Dans ce roman, Labrouste raconte sa vie avec ses ex-petites amies et ses réunions avec elles. Dans l'ensemble, ce roman raconte la frustration de Labrouste qui n'arrête pas de prendre des antidépresseurs et doit consentir à sa vie entourée de femmes. Cette recherche porte sur le pessimisme vécu par le personnage principal, Labrouste. Cette recherche utilise la méthode analytique descriptive et l'approche pessimisme d'Arthur Schopenhauer pour décrire la représentation du pessimismede Labrouste dans le roman Sérotonine. La conclusion de cette rechercheest le personnage de Labrouste quiaccepte sa situation d'impuissance, de dépression et de solitude et réagit avec pessimisme.
La Violation du Principe de Coopération de Grice et l’Implicature Conversationnelle dans la Bandes Dessinées Les Aventures De Tintin Series Les Cigares Du Pharaon
Authors: Pratiwi Reika Hana , Urip Sri Rejeki , Yulianto Ahmad , Arsiyana Marliza
Published: September 2024

L'objectif de cette recherche est le principe de coopération qui visent à connaître et décrire la violation du principe de coopération et l’implicature dans la bande dessinée, et en utilisant la théorie linguistique pragmatique de Herbert Paul Grice. L’approche de recherche est la théorique pragmatique et méthodologique du qualitative. L’objet de la recherche est la bandes dessinées Les Cigares du Pharaon. La méthode de collecte des données utilisée est la méthode d’écoute, la technique de base est la technique du Sadap. En plus la technique avancée utilisée la technique de SBLC et technique d’écrire. La source de données obtenues par une bande dessinées intitulée Les Cigares du Pharaon d’Hergé parue en 1955. Puis pour analyser des données selon une méthode pragmatique équivalente et référentiels équivalents de parlants. La technique de base utilisée dans cette recherche est la technique PUP, et la technique de comparaison d’égalisation. Les résultats de l'étude ont trouvé 31 violations du principe de coopération et de ses implicatures. Il y a six violations de la maxime de quantité, sept violations de la maxime de qualité, treize violations de la maxime de relation, trois violations de la maxime de manière, une violation de la maxime de quantité et de relation, et une violation de la maxime de relation et manière. Les résultats de cette étude contiennent 13 implicatures à savoir louer, dissimuler, clarifier des informations, avoir des significations implicites, être agacé, en colère, dire, accuser, convaincre, blâmer, se moquer, demander et insinuer.
The Relationship Between Nutrient Intake (Protein, Zinc, Iron), Parenting, and Sanitary Hygiene on The Incidence of Stunting
Authors: Agustin Elviana , Lestari Puji , Kurniasanti Pradipta
Published: September 2024

Introduction: Stunting is a condition where the length or height of a toddler is below his age group. This condition is measured by length or height according to age < -2 SD, which WHO has determined. This study aimed to determine the relationship between intake of nutrients (protein, zinc, and iron), parenting styles, and sanitation hygiene on the incidence of stunting. The method used is a cross-sectional study design. Methods: The research sample was 73 mothers under five. The sampling technique used is simple random sampling. The analysis used is the Pearson correlation test and multiple linear regression analysis. Results: The results of this study indicate that there is a relationship between protein intake and stunting (p-value = 0.159), zinc intake and stunting (p-value = 0.192), and iron intake and stunting (p-value = 0.365). Parenting style with stunting (p-value = 0.025) and the relationship between sanitation hygiene and stunting (p-value = 0.022). Conclusion: The most dominant variable in the incidence of stunting is sanitary hygiene (coefficient β = 0.218, p-value = 0.002).
Vietnam, Thailand, and Indonesian Government Policies regarding Rice Cultivation in the Face of Climate Change
Authors: Muadz Muhammad Darda , Muhyidin Ali
Published: September 2024

The discussion about climate change adaptation usually focuses on technology or policies. It also predominantly addresses the transportation and industrial sectors. When discussing the agricultural sector, the emphasis is often on livestock farming, which indeed generates significant greenhouse gas emissions. Apart from livestock, another significant emitter in agricultural activities is rice cultivation. In the case of Vietnam, rice cultivation produces a greater amount of greenhouse gases compared to the transportation sector. However, rice cultivation is highly vulnerable to climate change. While rice cultivation is prevalent in developing countries such as Vietnam, Thailand, and Indonesia, these countries may not necessarily have sufficient resources to cope with climate change. Therefore, this study will compare how these three countries respond to the issue of climate change based on case studies of policies related to rice cultivation. The research employs the theory of ecological modernization, which seeks solutions to climate change issues through environmentally friendly technological innovations and government policies. Policies that encourage public and private sector participation in climate change prevention are also considered. The study finds that each country has a different orientation, leading to the implementation of diverse policies and technologies according to the context and history of each nation. The mentioned history refers to the history of rice cultivation in a specific country. Meanwhile, the context of each country includes factors such as the challenges faced by a country, the orientation of farmers in rice cultivation, and the role of a country in the international market.
New Opportunities for the Production and Application of Ammonium Sulphate and Complex Fertilisers Based on It
Authors: СЕРИКБАЕВА А.К. , АККЕНЖЕЕВА А.Ш. , БУСУРМАНОВА А.Ч. , ЖУМАШЕВ К.Ж. , МАУЛЕШЕВ А.А. , АЛТЫБАЕВА Ж.К.
Published: September 2024

Рассмотрены традиционные и новые способы производства сульфата аммония и комплексных солей на его основе. В Казахстане остается нерешенной проблема реализации многим отходов и побочных продуктов металлургических предприятий, в частности технического сульфата аммония, образующегося в коксохимическом производстве АО “АрселорМиттал Темиртау”, который мог бы стать вторичной сырьевой базой для производства товарных продуктов. Представлены альтернативные способы получения сульфата аммония из промышленных, сельскохозяйственных отходов и отходов животноводства, а также различные области его применения. Показана актуальность производства комплексных солей на основе сульфата аммония и возможность увеличения его потребления в сельском хозяйстве за счет получения комплексных солей со сниженной кислотностью и повышенным содержанием полезных компонентов. Предложены новые возможности применения сульфата аммония и перспективность его использования в качестве реагента для производства кальцинированной соды и гидрофторида аммония.

Traditional and new methods of the production of ammonium sulphate and complex salts based on it are considered. The problem related to the sales of many wastes and by-products of metallurgical enterprises, in particular technical-grade ammonium sulphate formed in the by-product coking department of JSC ArcelorMittal Temirtau that could become the secondary raw material basis to manufacture marketable products, has not been solved yet. Alternative methods of obtaining ammonium sulphate from industrial, agricultural and animal farm wastes are presented, along with various areas of its application. Relevance of the production of complex salts based on ammonium sulphate and the possibility to increase its consumption in agriculture by obtaining complex salts with decreased acidity and increased content of useful components are demonstrated. The new possibilities of sulphate ammonium application and the potential of its application as a reagent for the production of anhydrous sodium carbonate and ammonium hydrofluoride are proposed.
ALEXANDER BORISOVICH CHIZHOV (20.05.1938-31.08.2023)
Authors: ГАВРИЛОВ А.В. , ЧИЖОВА Н.И. , ПИЖАНКОВА Е.И. , ДЕРЕВЯГИН А.Ю. , ОСПЕННИКОВ Е.Н.
Published: September 2024

31 августа 2023 г. скончался известный геокриолог, кандидат геолого-минералогических наук, ведущий научный сотрудник геологического факультета МГУ Чижов Александр Борисович. Он останется в памяти как замечательный ученый и просто интеллигентный человек с тонким чувством юмора.

On August 31, 2023, the famous geocryologist, candidate of geological and mineralogical sciences, leading researcher at the Faculty of Geology of Moscow State University, Alexander Borisovich Chizhov, died. He will be remembered as a wonderful scientist and wise person with a subtle sense of humor.
The Gospel Text in the Legacy of N. F. Fedorov and the Idea of Projectivity of Literature
Authors: Gacheva Anastasia
Published: September 2024

The article discusses the features of the interpretation of the gospel text by the philosopher N. F. Fedorov. It demonstrates that for the philosopher, the Gospel is not only the “eternal book” of humanity that influenced the development of literary and artistic creativity, but also a life-transforming project accomplished in the unity of human effort and God’s grace. According to Fedorov’s historiosophical model, evangelical images and plots mark the transition from “history as a fact,” based on fratricidal strife and struggle, to “history as a project,” in which the human race consciously and freely chooses the path of following Christ, accepts the ideal of love and sacrifice as the basis of thought and action, and then to “history as an act,” which becomes the realization of the “good news” about the Kingdom of God, the “work of salvation,” the work of resurrection and regulation. The fate of the prodigal son, the prudent robber, the centurion, Zacchaeus, etc. in Fedorov’s interpretation, they symbolize the turn of humanity from the “fallen state” to the divine-human service. The projective approach to evangelical images and plots echoes the philosopher’s projective approach to literary texts and is aligned with the philosopher’s interpretation of the world literary types — Hamlet, Manfred, Faust Don Juan, who, like the characters of a gospel story, act as carriers of certain ideals and images of action. However, unlike the latter, they remain within the framework of the “minor” choice. Fedorov asserts the ideal of “universal realism,” which sets the prospect of the world’s transformation. The philosopher considers the adult choice of literature, its missionary role in the liturgization of creativity, part of which may be a new development of gospel themes and plots. Just as in the analysis of literary works Fedorov builds on the plots of “Faust,” “Dead Souls,” he builds the stories of the prudent robber, Lazarus, etc., stretches the threads of interaction between the gospel plots, reconstructs the links of the gospel story, creating projects of future novels that the masters of the word should embody.
Functional Tricuspid Regurgitation in the Transcatheter Aortic Valve Replacement Population and Emerging Transcatheter Tricuspid Valve Interventions
Authors: Silkowski Molly , Kendsersky Payton , Amoroso Nicholas
Published: September 2024

Transcatheter aortic valve replacement (TAVR) has revolutionized the management of aortic valve disease. However, its success has brought attention to concurrent tricuspid valve disease and the inadequacy of treatments. This review explores the emerging field of transcatheter tricuspid valve interventions (TTVI) after TAVR. We address the pathophysiology and prevalence of post-TAVR tricuspid valve disease and TTVI strategies, including repair, replacement, annuloplasty, and edge-to-edge repair. We also discuss clinical studies assessing TTVI safety and efficacy, including for patients with previous TAVR. Collaboration among clinical disciplines remains crucial for advancing this emerging field to establish best practices regarding patient selection and procedural complexities.
Phytoncidal activity of the needles of Juniperus L. representatives in the technogenic conditions of the city of Dnipro
Authors: Yusypiva T. I. , Sklyar T. V.
Published: September 2024

The territory of the Dnipro urban agglomeration is one of the most polluted in Ukraine. The high concentration of industrial enterprises, roads, density of residential buildings and urban population are factors of anthropogenic pressure on urban ecosystems that significantly affect the quality of the habitat of living organisms and human life. Therefore, an urgent problem of modern urban planning and urban amenities is compliance with sanitary requirements for landscaping residential and industrial areas. The creation of decorative compositions with a predominance of tree and shrub species ensures the landscape attractiveness of the city, reduces the level of noise and dust pollution, improves temperature and wind conditions, improves public health by normalizing the psychological state of people and purifying the city air with phytoncides of plants, especially conifers. Taking into account the high decorative qualities and resistance of junipers to adverse climatic conditions, the aim of the study was to analyze the annual dynamics of phytoncidal activity of Juniperus media V. D. Dmitriev «Blue gold» and J. sabina L. «Tamariscifolia» needles in conditionally clean and polluted by vehicle emissions areas of Dnipro city. The plant material was collected at 4 monitoring points in Dnipro, 1 was a conditional control, and the other 3 were experimental plots with different levels of vehicle traffic. Needles were sampled at all periods of shoot ontogeny. The phytoncidal activity was determined by the method of «steaming» microbial test cultures with volatile needle secretions on test cultures of Staphylococcus epidermidis, Staphylococcus aureus, Micrococcus sp., Bacillus subtilis, Esherechia coli, Pseudomonas fluorescens, Candida albicans. The results of the study show that the dynamics of phytoncidal activity of J. media and J. sabina needles during the year is the same in plants growing in a conditionally clean area and under the influence of motor vehicle traffic: the amount of released phytoncides increases in spring, during the period of intensive shoot growth, reaches a maximum at the stage of slowing down their growth (in summer), decreases in autumn, with the cessation of growth processes, and is minimal in winter, when there is no shoot growth. It has been shown that in a clean area, needle extracts of both representatives of the genus Juniperus have the greatest inhibitory effect on the growth of S. aureus colonies, and under the influence of vehicle emissions, the phytoncidal activity is highest against S. aureus and S. epidermidis strains. It was found that out of the two studied representatives of the genus Juniperus, J. media has the highest stability of the ability to secrete phytoncides under conditions of motor vehicle traffic load, which we recommend for use in urban landscaping.
Analysis of studies of floodplain habitats in the Northern steppe region of the Dnipro
Authors: Nikolaieva V. V.
Published: September 2024

The history of floodplain research, originating in the 17th century and continuing to the present day, reflects the general trends in botanical science, evolving from sporadic observations to systematic studies. Initially limited to species descriptions and vegetation characteristics, research gradually enriched itself with analysis of ecological interrelationships and the impact of anthropogenic factors. Studies of floodplains in Ukraine have a long history, yet their development has been uneven, often shaped by external factors such as university and scientific institute advancements, botanical gardens, and the construction of hydroelectric power stations and reservoirs, prompting large-scale expeditions. Military actions in the past century have also influenced the progression of research in distinct stages. The current phase is marked by growing interest in these ecosystems, including floodplain in Northern Steppe of the Dniprо region, yet research remains fragmented, focusing on specific biotopes or river valleys. Therefore, further systematic expansion of research based on predecessors' work, its systematization, and supplementation is necessary. This is particularly pertinent amidst global climate change and increasing anthropogenic influence, as the spread of adventive and invasive species negatively impacts these natural complexes and their native biodiversity. Military activities and environmental crimes pose serious threats to floodplains, leading to their degradation and biodiversity loss. Scientific investigations of floodplains are crucial for their contribution to water resource conservation, water regime regulation, and as unique habitats for many rare and vulnerable plant species requiring protection and preservation. Overall, floodplain research represents a significant direction in contemporary botany and ecology, demanding a comprehensive approach for safeguarding these unique natural complexes in the future.
Iron and Manganese concentrations in leaf tissues of Rhizophora mangle (Rhizophoraceae): implications for energetic metabolism
Authors: Soares Pascoalini Sávia , Meire de Santana Lopes Dielle , Ralph Falqueto Antelmo , D’Addazio Verônica , Alves Fernandes Adriano , Barcellos da Rosa Marcelo , Barcelos Passos Lima Gontijo Andreia , Luiz Gomes Soares Mário , Gontijo Ivoney , Romais Schmildt Edilson , Farías Espinoza Helia Del Carmen , Brummelhaus de Menezes Bryan , Mironuk Frescura Lucas , Vidal dos Santos Leopoldo Raquel , Patricio de Oliveira Camila , De Almeida Leite Lucas , Victorino de Brites Júnior Neilson , Depolo Barcelos Ully , Pereira Tognella Mônica Maria
Published: September 2024

Introduction: Iron (Fe) and manganese (Mn) are bioessential micronutrients for plants but can impair the energetic metabolism when present at high levels. Objective: To assess the photosynthetic performance and oxidative damages in Rhizophora mangle L. leaf tissues at low and high concentrations of Fe (74 and 195 mg kg-1; Feleaf) and Mn (65 and 414 mg kg-1; Mnleaf). Methods: Photosynthetic pigments, chlorophyll a fluorescence, leaf CO2 assimilation and gas exchange and DPPH• radical scavenging capacity were sampled in R. mangle growing in estuarine forests in the North region of Espírito Santo State and the extreme South of Bahia State (Brazil) showing low and high Feleaf and Mnleaf. Results: Effects of high Fe and Mn were not identified on pigment levels. The increase in Feleaf and Mnleaf at the levels observed in this assessment had a positive effect on the number of reaction centers and on the efficiency of the oxygen-evolving complex, evaluated as K-band, while no changes were found in the parameters related to the excitation trapping efficiency at the active center of photosystem II. Distinct interference patterns of Fe and Mn on the functional processes of photosynthesis were identified, especially on CO2 assimilation and reactive oxygen species metabolism, with major effects on CO2 assimilation and carboxylation efficiency of Rubisco at high Mnleaf. Conclusion: These findings demonstrate the efficiency of R. mangle in positively regulating the electron transport chain in response to high Fe and Mn, at least in terms of the preservation of structure and functionality of the plant photosynthetic apparatus. Moreover, interference of high Mnleaf in R. mangle occurs at non-stomatal and biochemical levels. There is an antagonistic interference of these trace elements with the physiology of R. mangle, which is a dominant species in Brazilian mangroves.
Local and landscape constraints of adult population of Anastrepha obliqua (Diptera: Tephritidae) in mango orchards
Authors: García Olivos Nadia L. , Lasa-Covarrubias Rodrigo , Serna-Lagunes Ricardo , Garcia-Martinez Miguel A.
Published: September 2024

Introduction: The West Indian fruit fly, Anastrepha obliqua (Macquart), is one of the most economically important pests of mangoes in Mexico and the Neotropics. Objective: To analyze adult population patterns of A. obliqua and their relation to local and landscape factors. Methods: We selected 11 “Manila” mango orchards along the middle part of La Antigua River, which were characterized to determine their biophysical structure and landscape configuration considering their distance to six different land uses/land covers. Anastrepha obliqua population was estimated by collecting adult flies in colorless polyethylene plastic bottle traps baited with a protein for three weeks in June 2022. Results: A total of 1 869 adults of A. obliqua were trapped, of which 75 % were females and 25 % were males. Abundance varied from 68 to 490 adult flies per orchard, while capture frequency from 0.36 to 1.8 flies/trap/day. Abundance increased in highly shaded orchards, and capture frequency decreased in orchards with highly soil compaction. Abundance and the frequency of capture increased in orchards near isolated trees of Spondias spp. and decreased in orchards near sugarcane plantations. Shade management in mango orchards may be used as an effective strategy to promote biotic interactions to naturally regulate A. obliqua populations, meanwhile, soil compaction represents a limiting ecological condition, which might severely impact fruit fly larvae survival. Conclusions: Adult population of A. obliqua depends on several local and landscape factors because they indicate resource availability and ecological conditions. These findings could be considered for control strategies in the integrated management of this pest to promote protection and improve the fruit quality of mango crop.
Andrena nimigracilis, a New Species (Hymenoptera: Andrenidae) from México
Authors: Zabinski Wyatt
Published: September 2024

Andrena nimigracilis Zabinski, new species, is described from a single male specimen from the state of Michoacán in México. It can be distinguished from males of all other species of North American Andrena by the following combination of characters: metasoma extremely narrow, humeral angle extremely weak, propodeum declivitous, genal area small, compound eye wide compared to its length, pretarsal claws with tooth, vertex ≤1.5x lateral ocellar diameter, and wings hyaline. Due to this unique morphology, this species currently cannot be placed into any Andrena subgenus, therefore placed as subgenus incertae sedis.
Bridging the Gap: Using Digital Interactives for Social Museums
Authors: Ergin Gamze
Published: September 2024

Designing the built environment with an inclusive approach that allows equal access for everyone is necessary to reduce social inequalities. Creating a physical environment that includes all segments of society and activates all senses is crucial in museum spaces. Digital interactions used in museum spaces offer new possibilities and interfaces to eliminate inequalities and increase inclusiveness. This study examines the integration of digital interactives in museums with a focus on the social museum concept. Through a comprehensive review of literature spanning museum studies on social museums, digital interactives, and inclusive museum concepts, this research investigates the role of digital interactives in fostering social engagement and facilitating interactive learning experiences within museum settings. Drawing on the theoretical framework and practical examples the paper explores how to employ digital technologies strategically to enhance visitor interaction, promote inclusivity, and facilitate knowledge sharing in social museum environments. This research demonstrates the transformative potential of digital interactives in museums as social spaces and provides a comprehensive understanding of the dynamic relationship between technology, museum practices, and social inclusion. The result of the research shows that digital interactives used in museum environments, such as haptic tools, wearables and mobile technologies, extended reality technologies, RFID and AI technologies, offer new ways of engagement for a more social museum and increase social inclusion.
Parasocial Interactions in Otome Games: Emotional Engagement and Parasocial Intimacy Among Chinese Female Players
Authors: Gao Hao , Guo Ruoqing , You Qingqing
Published: September 2024

This study conducts qualitative research on female players of otome games, exploring the mechanisms of romantic relationship formation within these games and their impact on perceptions of real-life intimate relationships. The findings reveal that the parasocial romantic relationships formed in otome games are not entirely detached from reality; instead, they are embedded in daily life through game interaction mechanisms and the players’ internalized imagination, thereby influencing the reconstruction of real-life intimate relationships. Female players show a high degree of acceptance and immersion in these romantic relationships, focusing on the emotional support provided by male characters. These relationships play a positive role in fulfilling emotional needs, regulating negative emotions, constructing self-identity, and redefining perceptions of intimacy. The intangibility of physical contact remains the only significant shortcoming, as perceived by a minority of players, pointing to a primary direction for the future development of otome games.
Effect of Pulse Width and Intensity on Cell Death in Reversible Electroporation of Cancerous Cells
Authors: Alkış Mehmet Eşref , Alan Yusuf , Eser Erhan
Published: September 2024

Electroporation (EP) is the process of increasing the permeability of a biological cell or tissue by applying a short-term and sufficient external electric field. The utilization of proper pulse settings is required for EP-based treatments to be successful. Our aim in this study is to examine the effect of different electrical pulse widths and strength on EP efficiency. Human osteosarcoma cells (U20S) were used in the study. Eight-square-pulses with a frequency of 1Hz at 10µs, 1ms, 5ms, 10ms, and 20ms widths with low electric fields (20-500V/cm) were applied to U20S cells. 10-15 minutes after the applications, the cells were incubated in 96-well plates with 10 thousand cells in each well for 24 hours. Efficiency of pulses of different intensity and width was evaluated by MTT analysis method. The percent inhibition of U20S cancer cells elevated as the pulse width increased in almost all electric field values. The highest cell inhibition (%) occurred in pulses with an electric field of 500 V/cm and a width of 20ms (inhibition ratio: 76.25%). No inhibition was observed in the cells at 10µs, 1ms, 5ms, 10ms width pulses with 20 V/cm electric field and 10µs, 1ms width pulses with 50V/cm electric field. In conclusion, our findings show that the electric field intensity and pulse width used in electroporation play an important role in U20S cancer cell death. According to our results, it may be more appropriate to use high-voltage short-width pulses or low-voltage long-width pulses in reversible EP studies.
Thermal Power Plant Performance Analysis by Estimating Boiler Efficiency via Indirect Method: A Case Study
Authors: Celen Pınar , Erdem Hasan Hüseyin
Published: September 2024

The performance of power plants is very critical since it is directly related with operating and electricity production costs. Among the other different type of power plants, coal-fired ones have advantages such as reliability and low cost fuel. In this paper, a coal (lignite) fired thermal power plant having capacity of 160 MW is taken into consideration and the impact of condenser pressure, moisture content of lignite, excess air coefficient, efficiency of turbine pressure and heater numbers on power plant thermal efficiency is investigated. It is aimed to determine performance losses of each equipment by means of the thermodynamics and economic analysis. In this scope, it is expected that the power plant operator will be able to evaluate the reduction potential of equipment performance losses and ensure more effective use of the power plants by correctly planning the maintenance and rehabilitation needs and times. In the calculations, the boiler efficiency was determined with EN 12952-15 standard (indirect method) since this method has higher accuracy in coal fired boilers. It is seen that the condenser pressure and excess air coefficient increments have not significant impact on power plant efficiency compared to moisture content of lignite, excess air coefficient, efficiency of turbine pressure and heater numbers. The significant effect is observed for fuel moisture content which rises from 22% to 47% and the power plant efficiency falls from 40% to 28%. The variation of the power plant thermal efficiency in case of failure of heaters is investigated and the power plant efficiency has decreased from 40.17% to 36.09% when the pre-heaters are no longer in to be in use because of any reason. In addition, revenue losses are estimated for each main equipment efficiency reduction for better use of power plant capacities and electricity lowering production costs.
Predictive Maintenance Planning Using a Hybrid ARIMA-ANN Model
Authors: Kaynak Gamze , Ervural Bilal
Published: September 2024

Predicting machine faults is crucial for maintaining operational efficiency in industrial settings, minimizing unplanned downtime, and ensuring customer satisfaction. Fault prediction helps identify faults and create maintenance schedules. Maintenance planning involves strategically scheduling activities to ensure the continuous operational efficiency of systems. This study focuses on reducing unplanned downtime in a food company by developing a predictive maintenance plan through machine fault prediction. Artificial Neural Networks (ANNs) are excellent in handling non-linear models, while the ARIMA model is adequate for linear models. However, real-world data often contains linear and non-linear elements, requiring hybrid models for improved accuracy. This study employs ARIMA, ANNs, and a Hybrid ARIMA-ANN model. The dataset is individually modelled using each approach. Using a 3-month machine fault dataset, predictive values for machine fault times are generated and statistically evaluated using metrics such as Mean Absolute Error (MAE), Mean Squared Error (MSE), Mean Absolute Percentage Error (MAPE), and Root Mean Squared Error (RMSE). The findings indicate that the hybrid model outperforms both ARIMA and ANN models. The food company can significantly reduce unplanned downtime and ensure operational efficiency using a hybrid model. Predictive maintenance planning can help the food company save costs and maintain a competitive edge in the market.
Coulomb Stress Analysis in Nemrut Caldera (East Anatolia, Türkiye)
Authors: Alkan Hamdi , Bektaş Özcan , Büyüksaraç Aydın
Published: September 2024

In volcanic areas, seismic events with low energy occur before seismic activity or due to the movement observed in the magma. These earthquakes, which are caused by the expansion-contraction movement that has been revealed in different studies and is mostly observed in the magma chamber, can be recorded with continuous observations. On the other hand, it is not easy to distinguish between tectonic and volcanic origins of earthquakes occurring in volcanic areas. In this study, Coulomb stress analysis was carried out using earthquakes in the Nemrut Stratovolcano, which is located in the eastern Türkiye and is at the westernmost end of a volcano arc, and it was concluded that the stress is related to the Nemrut Caldera, therefore the positive stress caused by the expansion of the magma chamber of the Nemrut Volcano creates tremors.
Predicting the Number of Visitors with Artificial Neural Networks to Support Strategic Decision-Making for Science Centers
Authors: Çetinkaya Ali , Kırgız Havva , Kara Ferzan
Published: September 2024

Accurately predicting visitor attendance has become increasingly vital for science centers to optimize operations, improve visitor experiences, and stay competitive in attracting and engaging global audiences. As the demand for advanced predictive analytics grows, this study explores the use of artificial neural networks (ANNs) to forecast visitor numbers at science centers. In order to achieve this objective, data pertaining to the number of visitors to the Konya Science Centre was utilized. By analyzing a dataset of ten input factors, such as weather conditions and past visitor behavior, the study develops predictive models capable of accurately estimating future attendance patterns. The best-performing model, utilizing Bayesian regularization, 0.91444 for the training set, 0.25119 for the test set, and 0.91342 overall. These findings underscore the transformative potential of predictive analytics in science center management. Leveraging machine learning techniques, the study provides valuable insights into visitor preferences and behavior. This knowledge can empower science centers to make data-driven decisions, optimize resource allocation, and adapt their offerings to meet the evolving needs of their target audience. Ultimately, the study highlights how predictive analytics can enhance the long-term sustainability and global competitiveness of science center operations.
A Machine Learning Prediction Model for Myelitis and Multiple Sclerosis Based on Fourier Transform Features from MRI Images
Authors: Yılmaz Acar Züleyha
Published: September 2024

Myelitis is a neurodegenerative disease positioned in the spinal cord, with multiple sclerosis (MS) being a common subtype. Radiological indicators enable the diagnosis of these diseases. This study proposes a classification framework to detect myelitis, MS, and healthy control (HC) groups using magnetic resonance imaging (MRI) images. The feature extraction step involves applying the fast Fourier transform (FFT) to MRI images. FFT is important because it converts spatial data into the frequency domain, making it easier to identify patterns and abnormalities that indicate these diseases. Then, statistical features (mean, minimum, maximum, standard deviation, skewness, kurtosis, and total energy) are extracted from this frequency information. These features are then used to train support vector machine (SVM), k-nearest neighbor (KNN), and decision tree algorithms. In multi-class classification (myelitis vs. MS vs. HC), the proposed method achieves a classification accuracy of 99.31% with SVM, with average precision, recall, and F1-score values of 99.27%, 99.21%, and 99.24%, respectively, indicating effective classification across all classes. In the binary class classification (HC vs. MS, MS vs. myelitis, HC vs. myelitis), the SVM achieves an outstanding classification accuracy of 99.36%, 99.71%, and 100% respectively. This study highlights the efficiency of FFT-based feature extraction in forming detection patterns for classifying HC, MS, and myelitis classes.
International Legal Regulation of Biodiversity Conservation in Northern Latitudes (Part 2)
Authors: Teymurov E. S.
Published: September 2024

International scientific and technical cooperation is critically important for making effective decisions and measures to manage Arctic biodiversity. The 2017 Agreement on Strengthening International Arctic Scientific Cooperation creates a solid legal basis for intensifying current and designing new scientific research in order to obtain the best scientific data as a basis for conservation and resource management. The basis of the international legal regime for the conservation and management of biodiversity beyond national jurisdiction in the Arctic is the 1982 UN Convention on the Law of the Sea. International legal acts on fisheries regulation have been adopted for all four areas of the high seas in the Arctic. The study of the Agreement on the Prevention of Unregulated Fishing on the High Seas in the central part of the 2018 SLA revealed significant shortcomings: when determining the spatial scope of application, an ecosystem approach is not used; a precautionary approach to fishing is not taken into account; the basis for the creation of a regional fisheries management organization is not created; the issue of fishing by third States remains open. The Agreement on the Conservation and Sustainable Use of Marine Biological Diversity in Areas Beyond National Jurisdiction 2023 develops a number of institutions, including IOE and EIA. An analysis of its provisions indicates the inexpediency of Russia’s participation in it, taking into account the existence of the 2017 Agreement and a significant system of organizations involved in the implementation of joint marine research projects. The 2023 Agreement is not capable of having a significant positive effect on international cooperation in the conservation of Arctic biodiversity, but on the contrary will create additional obstacles to scientific research and impose financial burdens.

See the beginning: Lex russica. 2024;77(8):112-129. (In Russ.). DOI: 10.17803/1729-5920.2024.213.8.112-129.
Gestión sociocultural: una necesidad para la sostenibilidad y prosperidad del consejo popular Guatemala en Mayarí
Authors: Lapido-Polanco Beatriz Zulema , Muguercia-Fuentes Yalili
Published: September 2024

La presente investigación tiene como objetivo analizar el impacto del cierre del central azucarero Guatemala en el consejo popular del mismo nombre: Guatemala, del municipio Mayarí de Holguín Cuba; con vista a realizar una gestión sociocultural en beneficio de la sostenibilidad y prosperidad de sus pobladores. Se tiene en cuenta el aspecto socioeconómico del territorio entre los años 2002 y 2023. Para el desarrollo de la misma se utilizan como métodos científicos teóricos: análisis- síntesis, inducción- deducción e histórico- lógico. Una fuente esencial para el empleo de los métodos empíricos es el testimonio de los pobladores en ese período, así como la revisión de documentos y encuestas. La investigación supera los enfoques generales y de desarrollo humano de trabajos realizados anteriormente sobre el tema; asimismo, es un estudio novedoso que contribuye a revelar las transformaciones socioeconómicas ocurridas en la comunidad de Guatemala, tras el proceso de cierre del central azucarero y de ahí proponer una gestión sociocultural para favorecer y alcanzar el beneficio y calidad de vida necesario de los pobladores del consejo popular Guatemala.
A Novel Model Predictive Control for an Autonomous Four-Wheel Independent Vehicle
Authors: Tran Ngoc Son , Lai Khac Lai , Dao Phuong Nam
Published: September 2024

This work is centered on developing a novel Model Predictive Control (MPC) for Four-Wheel Independent (FWID) vehicles to achieve trajectory tracking effectiveness, which is difficult to satisfy due to the changing the optimization solution after each time period. By using linearization technique for FWID model and eliminating the term of dynamic uncertainty in the tracking error model, the nominal linear Discrete Time System (DTS) is achieved to develop the proposed MPC strategy, which leverages the Luenberger observer to obtain the predictive model and extends for obtaining the Output feedback MPC scheme. On the other hand, the appropriate optimization problem is given at each time instant to guarantee the stability of the closed loop system under the designed MPC law without the consideration of terminal region as well as terminal controller, which have been considered in the previous researches. The unification between the optimization problem in MPC scheme and the tracking problem is validated by the Lyapunov function-based analysis with the inequality estimations. The efficiency of the proposed MPC law for FWID vehicles is clarified through a simulation study.
TransUNet for Precise and Robust GI tract Segmentation in MRI Images
Authors: Tummala Bindu Madhavi , Jaladi Rishitha , Veeraiah Dasari Chinna , Peruri Aruna Kumari
Published: September 2024

Medical image processing is revolutionizing Gastrointestinal (GI) cancer radiation therapy by enabling precise targeting of high X-ray beam dosages to the tumors while protecting the surrounding healthy organs. However, the manual segmentation of healthy organs at risk from MR-Linac images is a time-consuming process that can delay treatment and increase patient suffering. Deep learning-based medical image processing algorithms have the potential to automate the segmentation of organs at risk, thereby improving the accuracy and efficiency of GI cancer radiation therapy. Every day, the MR-Linac, a cutting-edge MRI technology, tracks the ever-changing positions of tumors. This advanced tool empowers medical professionals to fine-tune cancer treatments with remarkable precision. This study presents a TransUNet model, a combination of transformer architecture with Convolutional Neural Networks (CNNs). TransUNet achieves remarkable results in segmenting and labeling different regions within images by integrating the spatial comprehension of CNNs with the self-attention mechanisms of transformers. Our research compares the TransUNet model with various combinations of loss functions. The model outperforms with Dice+BCE loss function.
Cardiovascular risk in individuals with kidney disease
Authors: Carrizales Selene H. , Egresado Belen Domingo Cruz Hernandez , Pineda Itzel B. C. , Valladares Paulina G. , Castellares Jose R. R. , Velázquez Mariana G. M. , Villegas Manuel A. V. , Ruiz Siomara E. L. , Bermudez Ulises S. , Aguilar Adriana C.
Published: September 2024

The worldwide prevalence of chronic kidney disease (CKD) is estimated to exceed 700 million persons, with the incidence steadily increasing due to factors such as an aging population and the growing prevalence of chronic diseases such as diabetes and hypertension. Cardiovascular disease is the primary cause of illness and mortality in persons with nephropathy. Effectively treating nephropathy and cardiovascular risk in individuals with kidney disease is a major challenge in clinical practice. Every patient requires a comprehensive assessment and tailored therapy. In order to reduce the likelihood of cardiovascular events in patients with nephropathy, it is necessary to avoid and rapidly address cardiovascular risk factors. In order to enhance the overall well-being and longevity of individuals with kidney disease, it is essential to identify and address any cardiovascular issues.
Barriers to Enrollment and Retention in Disease Management Programs
Authors: Zhang Lujia , Bauhoff Sebastian
Published: September 2024

Management of chronic diseases has become increasingly important as the global burden of chronic diseases continues to increase. In Latin America there are significant gaps in the provision of chronic care management, with a pressing need to help patients better control their condition. One tool to address gaps in care management is through disease management programs, which include a set of coordinated interventions often with an educational component aimed to improve health outcomes and reduce costs. This paper uses the socio-ecological framework to describe barriers to disease management program enrollment and retention, as well as propose potential interventions to address these barriers. Addressing the many barriers ranging from the individual factors to larger organizational or policy factors requires multi-faceted interventions.
A new optical method for control in visible light of volatile hydrocarbon media and their mixtures using data from light-shadow boundary images
Authors:   Peter the Great Saint Petersburg Polytechnic University, Davydov V.V. ,   The Bonch-Bruevich Saint-Petersburg State University of Telecommunications,   All-Russian Research Institute of Phytopathology, Vakorina D.V. ,   The Bonch-Bruevich Saint-Petersburg State University of Telecommunications, Stepanenkov G.V. ,   The Bonch-Bruevich Saint-Petersburg State University of Telecommunications
Published: September 2024

We substantiate a need for developing an optical method for the rapid analysis of mixtures of volatile hydrocarbon media. Problems that arise during the express-evaluation of the state of mixtures composed of volatile hydrocarbon media using refraction-based techniques are outlined. A new optical method for determining the state of volatile hydrocarbon media and their mixtures is developed. As well as being able to detect variations of the medium from a standard state, the proposed method also enables determining its composition and the percentage of constituent hydrocarbon components in the mixture. For the practical implementation of the new optical method, a new design of a mobile refractometer is developed. Specific features of measuring the refractive index of mixtures composed of volatile hydrocarbon media using the proposed refractometer design are described. Results of experimental studies of various volatile hydrocarbon media and their mixtures are presented.
Experimental Analysis and Optimization of Clearance between Punch and Die in Sheet Metal Blanking Process for Soft Steel
Authors: Bhoir Swapnil Suresh , Dongare Manoj Maruti , Verma Munna
Published: September 2024

Blanking process is commonly used process in production of sheet metal industries to fabricate components. The Global market of sheet metal production is facing highly competition. Due to unavailability of skilled operators and shortage of affordable CAD/CAM systems, it is difficult to predict optimum clearance between punch and die to obtain high quality in small scale industries. Blanking is metal fabricating process and it is characterized by complete material separation. The simulation of the shearing process is complicated as the shear band formed is narrow and fracture criterion is inappropriate. The effect of potential parameters like thickness of sheet, punch-die clearance, tool wear, and punch geometry are studied to investigate their interactions on blanking process. It is important to select process leading parameters which can lead the process such that two similar products from two separate materials can be manufactured on same mold with high quality. This study will help to investigate the effect of thickness of sheet, clearance between punch and die and type of material on blanking process and will help to predict optimal set of parameters to obtain reasonable quality. A mathematical model of blanking process is developed and design of experiments method is used to predict optimum punch-die clearance for soft steel which will result into high quality of component.