bluuebunny/crossref_metadata_2025 huggingface dataset:
The Degree Threshold for Covering with all the Connected $3$-Graphs with $3$ Edges
Authors: Ma Yue , Hou Xinmin , Yin Zhi
Published: February 2025

Given two $r$-uniform hypergraphs $F$ and $H$, we say that $H$ has an $F$-covering if every vertex in $H$ is contained in a copy of $F$. Let $c_{i}(n,F)$ be the least integer such that every $n$-vertex $r$-graph $H$ with $\delta_{i}(H)>c_i(n,F)$ has an $F$-covering. Falgas-Ravry, Markström and Zhao (Combin. Probab. Comput., 2021) asymptotically determined $c_1(n,K_{4}^{(3)-})$, where $K_{4}^{(3)-}$ is obtained by deleting an edge from the complete $3$-graph on $4$ vertices. Later, Tang, Ma and Hou (Electron. J. Combin., 2023) asymptotically determined $c_1(n,C_{6}^{(3)})$, where $C_{6}^{(3)}$ is the linear triangle, i.e. $C_{6}^{(3)}=([6],\{123,345,561\})$. In this paper, we determine $c_1(n,F_5)$ asymptotically, where $F_5$ is the generalized triangle, i.e. $F_5=([5],\{123,124,345\})$. We also determine the exact values of $c_1(n,F)$, where $F$ is any connected $3$-graph with $3$ edges and $F\notin\{K_4^{(3)-}, C_{6}^{(3)}, F_5\}$.
An Interlacing Property of the Signless Laplacian of Threshold Graphs
Authors: Helmberg Christoph , Porto Guilherme , Torres Guilherme , Trevisan Vilmar
Published: February 2025

We show that for threshold graphs, the eigenvalues of the signless Laplacian matrix interlace with the degrees of the vertices. As an application, we show that the signless Brouwer conjecture holds for threshold graphs, i.e., for threshold graphs the sum of the $k$ largest eigenvalues is bounded by the number of edges plus $k + 1$ choose $2$.
On Set Representation of Bounded Degree Hypergaphs
Authors: Basu Ayush , Johnston Griffin , Rödl Vojtěch , Sales Marcelo
Published: February 2025

In their classical paper, Erdős, Goodman and Pósa studied the representation of a graph with vertex set $[n]$ by a family of subsets $S_1,\dots, S_n$ with the property that $\{i,j\}$ is an edge if and only if $S_i\cap S_j\neq \emptyset$. In this note, we consider a similar representation of bounded degree $r$-uniform hypergraphs and establish some bounds for a corresponding problem.
Graphs without a 3-Connected Subgraph are 4-Colourable
Authors: Bonnet Édouard , Feghali Carl , Nguyen Tung , Scott Alex , Seymour Paul , Thomassé Stéphan , Trotignon Nicolas
Published: February 2025

In 1972, Mader showed that every graph without a 3-connected subgraph is 4-degenerate and thus 5-colourable. We show that the number 5 of colours can be replaced by 4, which is best possible.
System Dynamics for a Holistic Management of Road Traffic Congestion – A Comprehensive Overview with Some Selected Simple Use-Cases related to the Town of Kinshasa
Authors: Kayisu Antoine K. , Bahnasawi Mohamed El , Alsisi Mohmamed , Egbine Kelvin , Kambale Witesyavwirwa Vianney , Bokoro Pitshou N. , Kyamakya Kyandoghere
Published: February 2025

This paper examines how system dynamics can comprehensively understand road traffic congestion in developing cities, mainly focusing on Kinshasa. The research investigates the principles of system dynamics and emphasizes its efficacy in analyzing the interrelated factors contributing to congestion. A qualitative methodology examines traffic congestion in Kinshasa, focusing on the interconnections among factors such as inadequate road infrastructure, population expansion, urban planning deficiencies, and road users conduct. The system dynamics framework can include traffic system feedback loops and delays, which most methods ignore. Using real-world scenarios, this paper will demonstrate that system dynamics can diagnose chronic congestion in many urban transport systems. According to the analysis, poor road maintenance, inadequate public transport, and unsafe driving exacerbate congestion. Traffic congestion harms people, businesses, and society, as this paper examines its economic and social effects. The paper includes case studies showing how system dynamics was used to solve multifaceted problems. Different scenarios are prepared to evaluate the effectiveness of improving public transport and deploying other integrated traffic management approaches and essential infrastructure to reduce congestion. These multi-pronged strategies illustrate the transformation challenges urban planners must address to provide integrated and sustainable solutions. This work aids decision-makers and urban developers in integrating system dynamics to control road traffic congestion. The author believes cities should use adaptive models instead of linear ones, which is common in Kinshasa. This paper offers a systematic approach and descriptive methods for developing viable urban congestion and transportation solutions in similar socioeconomic environments.
Reforming regional government system and social well-being of local population: territorial aspects
Authors:   North-Caucasus Federal University, Kalyugina S. N.
Published: February 2025

Introduction. The relevance of the topic is justified by the need to summarize the interim results of the pilot project on the formation of a single-level system of local self-government and its impact on the socio-economic development of territories in the region under study.

Goal. The paper aims to study the nature of the impact of transformations on the socio-economic development of territories and the attitude of the population to the creation of municipal and urban districts.

Materials and methods. In order to analyze the approaches to the organization of local self-government in Russia and summarize the interim results of their implementation, the research used general scientific and private-scientific research methods, methods of logical-methodological, structural-functional and system analysis. The method of pilot sociological research was used to study the attitude of the population and municipal servants to the results of the administrative-territorial reform.

Results and discussion. In the course of the work, it was found that the transformations carried out in the Stavropol Krai have both positive and negative effects on the socio-economic development of territories and the social well-being of the population. In this regard, the process of improving the activities of regional and municipal authorities for further transition to a single-level system of local self-government is of particular importance. In this regard, the process of improving the activities of regional and municipal authorities on further transition to a single-tier system of local self-government is of particular importance.

Conclusion. According to the results of the study, it can be concluded that in order to improve the social well-being of the population, regional and municipal authorities of the pilot regions need to develop and implement a set of measures to mitigate and eliminate the negative consequences of the ongoing administrative-territorial reform.
Managing corporate financial solvency by means of sustainable business growth model
Authors:   Saint Petersburg State University, Lvova N. A.
Published: February 2025

Introduction. The article addresses the fundamental problems of managing the corporate financial solvency.

Goal. The paper aims to adapt the model of sustainable business growth to the tasks of corporate financial solvency management.

Materials and methods. The research methodology appealed to classical perspective on sustainable business growth.

Results and discussion. The factors of sustainable growth were decomposed on the basis of the DuPont model, that let identifying such determinants of the corporate financial solvency as the dividend policy, financial structure and business activity.

Conclusion. It was argued that the main condition for the corporate financial solvency is its intensive business activity, while investments in projects with long payback periods, a slowdown in the financial cycle, a decrease in cost management efficiency and a deterioration in sales conditions pose the main risks to the financial health of the business.
Scientific and practical research of conditions for the development of motivation and prevention of demotivators in teacher’s working activity
Authors:   Stavropol State Pedagogical Institute, Kobleva A. L.
Published: February 2025

Introduction. The article studies external and internal conditions for the development of motivation for working activities. The author conducted a content analysis of scientific and practical works devoted to the study and search for the most effective ways to promote the development of teacher’s activity. In addition, the article identifies and lists the most common barriers that demotivate teachers and reduce the ability to meet the teacher’s needs of both professional and personal nature. The relevance of studying the issue of motivation in teacher’s work is considered. It is substantiated due to the fact that there is a tendency to realize the risks and threats to the future of the society as a result of devaluation of pedagogical work and prestige of teaching in various media. It should be noted that the mode of pedagogical activity is becoming increasingly multitasking and is characterized by a high degree of emotional and mental stress, which in one way or another affects the performance and psycho-emotional state of the teacher. It is no coincidence that the entire pedagogical community and modern scientists are in search of the most effective approaches to preserve the resource of teachers and maintain their motivation for professional achievements. Thus, the need and relevance of developing a system of motivation of teacher’s working activity is claimed.

Goal. The study aims to determine the internal and external factors influencing the quality of teaching and to develop a matrix of the system of motivation of teacher’s working activity.

Materials and methods. The study is based on content analysis and quick research method. It also employs K. Zamfir’s methodology modified by A. Rean as Motivation of professional activity, and the modeling method.

Results and discussion. The psychological and pedagogical studies devoted to defining the key aspects influencing both the development of work motivation and acting as barriers to effective pedagogical activity are analyzed. In other words, demotivators are identified. A study of motivation of professional activity of teachers was conducted. As a result, groups of highly motivated teachers motivated by external positive and external negative motivation were identified. The obtained data demonstrated that most of the teaching staff are guided by internal motivation of professional activity. The practical significance of the work is confirmed by the matrix of the system of development of work motivation of a teacher, designed by the author of the article. The matrix is described in detail and presented in a figure.

Conclusion. Generalization and analysis of scientific and practical aspects of labor motivation development, as well as the results of the conducted research allowed making a number of conclusions and recommendations that can be used as strategic guidelines for modeling the motivation system of the teaching staff.
Models and technologies of political risk management: political-theoretical aspect
Authors:   North-Caucasus Federal University, Pozdnyakov K. K.
Published: February 2025

This article presents various points of view of foreign and domestic political scientists devoted to the study and analysis of political risks. The author presents the entire spectrum of theoretical definitions of the definition of "political risk", proposing to consider political risks not only as a source of negative impact, but also from the point of view of new opportunities and resources for business development. The author's point of view is presented, which considers political risks as events occurring in the political environment associated with the actions of the government and influencing political processes. As a result, basic ideas about the main parameters of political risks as a special phenomenon in international relations are formed: complexity, inconsistency, manifestation in various aspects of life, etc.
Review of the materials of the All-Russian scientific and practical conference (with international participation) "Current directions of anti-corruption policy in solving the problems of national security of the Russian Federation", dedicated to the 10th anniversary of the creation of the Scientific and Educational Center for Anti-Corruption Legal Policy in the North Caucasus Federal District
Authors:   North-Caucasus Federal University, Pyatigorsk Institute (branch), Mazurenko A. P. ,   Scientific and educational center of anti-corruption legal policy in the North Caucasus Federal District,
Published: February 2025

This article is a review of the materials of the All-Russian scientific and practical conference (with international participation) "Current directions of anti-corruption policy in solving the problems of national security of the Russian Federation", dedicated to the 10th anniversary of the establishment of the Scientific and Educational Center for Anti-Corruption Legal Policy in the North Caucasian Federal District. Where current issues of combating corruption were considered, as one of the main threats to the national security of the Russian Federation. The author analyzed the most relevant reports, and outlined the main directions of the anti-corruption component of the North Caucasian Federal District.
Development of composition and technology of capsule drug form extracted based on "cobalt-30 neo" substance
Authors:   Institute of Pharmaceutical Education and Research, Ramazonova K.R , Xodjaeva I.A ,   Institute of Pharmaceutical Education and Research
Published: February 2025

The fractional composition, dispersibility, bulk density, and residual moisture of the γ-cyclodextrin derivative of Cobalt-30, the "Cobalt-30 neo" substance, were determined according to the applicable regulations. In developing the composition and technology of the capsules, the type and number of excipients were selected, taking into account the technological properties of the mass. The composition and technology of the "Cobalt-30" capsule were developed, and all these aspects were thoroughly studied in the article.
Study of the morphology of the parotid salivary gland of guinea pigs and its role in digestion
Authors:   Elder Lecturer at the Department of Histology and Medical Biology of the Tashkent Dental Institute, Uzbekistan, Isakovich Abdukarimov Dilshod , Rakhimberdievna Mirsavurova Niulfar ,   Elder Lecturer at the Department of Medical and Biological Disciplines, Kimyo International University in Tashkent, Uzbekistan, Saidmuratovna Abidova Nodira ,   Senior Lecturer, Department of Fundamental Medicine, Kimyo International University in Tashkent, Uzbekistan, Hikmatullaevna Alimova Nafisa ,   Senior Lecturer, Department of Fundamental Medicine Kimyo International University in Tashkent, Uzbekistan, Bakhtiyorovna Oripova Barno ,   Assistant Professor, Department of Histology and Medical Biology Tashkent Dental Institute, Uzbekistan
Published: February 2025

The study of the morphology of the parotid salivary gland of guinea pigs is a topical issue in the field of veterinary medicine and biology. Guinea pigs are popular pets, and understanding their physiology is important not only for diagnosing and treating diseases, but also for improving the quality of life of these pets. The parotid salivary glands, as in most mammals, perform important functions such as the production of saliva, which is necessary for digestion of food and maintaining the normal condition of the mucous membranes of the oral cavity.

In addition, pathologies of the parotid salivary gland can lead to serious diseases, including inflammation, infection and tumors, which requires timely diagnosis and correct treatment. Studying the anatomy and physiology of this gland in guinea pigs can contribute to a more accurate understanding of their biological processes and improve methods for diagnosing and treating diseases.

Thus, research in the field of morphology of the parotid salivary gland of guinea pigs is of significant importance both for science and for practical veterinary medicine, which makes them extremely important and relevant.
Evaluatively and cultural features: the relationship between language and worldview
Authors:   Teacher of Uzbekistan state world languages university, Uzbekistan, Veronika Hatamova
Published: February 2025

Language is a fundamental medium through which cultural values, societal norms, and worldview are transmitted. Evaluatively in language refers to the expression of subjective judgments, attitudes, and emotions, shaping perceptions and interactions. This paper explores the intricate relationship between evaluatively, cultural features, and worldview, drawing on linguistic relativity, cultural semiotics, and discourse analysis. The study examines how evaluative expressions vary across languages, illustrating the influence of cultural frameworks on linguistic structures. Findings indicate that evaluative language encodes societal hierarchies, collective values, and emotional perceptions, impacting identity formation and intercultural communication. Additionally, the study highlights the role of metaphor and idiomatic expressions in shaping evaluative meaning across cultures. With globalization and digital communication influencing evaluative language, new hybrid expressions emerge, reshaping traditional linguistic patterns. Understanding evaluatively provides valuable insights into cross-cultural discourse, promoting effective communication in an increasingly interconnected world. Future research should further explore digital discourse and its evolving impact on evaluative expressions.
Characteristics of implementation of technical-tactical actions depending on the method of conducting competitions in types of sports wrestling
Authors:   Department OF Theory and methodology of sports activities, Andijan state university, Uzbekistan, Shoroidinovich Solaydinov Elmurod
Published: February 2025

Most of the existing programs for the training of athletes in freestyle wrestling do not take into account the body-functional characteristics of the wrestlers during the various methods of conducting the competition, and these indicators are not only an accurate and reliable assessment of the wrestler's current condition, but also their reserve capabilities. allows prediction. The use of indicators that take into account the interaction of sports-technical actions with natural biological qualities allows wrestlers to compensate for their personal shortcomings.
Bendopnea in Geriatric Patients with Different Body Composition Parameters: An Observational Study
Authors: Sergeeva V. A. , Bulgakova S. V. , Runikhina N. K. , Ponedelnikova E. V.
Published: February 2025

Bendopnea, a recently described new symptom of dyspnea that occurs during trunk flexion, and the bending oxygen saturation index (BOSI) are of interest for further research and application in geriatric practice.

OBJECTIVE: The aim of this study was to investigate the incidence of bendopnea in geriatric patients with varying body composition, including obesity, sarcopenia, and sarcopenic obesity.

MATERIALS AND METHODS. The bendopnea symptoms and the BOSI were studied in  a cross-sectional, observational study involving 100 individuals of advanced age with sarcopenia or sarcopenic obesity as well as control groups with obesity or no sarcopenia/sarcopenic obesity. Bendopnea was defined as dyspnea occurring after 30 seconds of transverse trunk flexion in a seated position of patient. Simultaneously, the BOSI was calculated by subtracting the oxygen saturation values before and after the bendopnea test, using pulse oximetry.

RESULTS. The average age of the participants was 76.16 ± 7.71 years, with women accounting for the majority (72%). The group with sarcopenic obesity showed the highest number of  positive bendopnea symptoms (65.38%), with statistically significant differences compared to the group with sarcopenia (26.92%) (p = 0.01); the group with obesity without sarcopenia (30.77%) (p = 0.01) and the control group (22.73%) (p < 0.001), respectively. The bendopnea was most commonly reported in patients actively experiencing dyspnea, with higher scores on the Borg dyspnea scale and severity on the Modified Medical Research Council (mMRC) scale. These patients also had lower grip strength, higher waist circumferences, and body mass index. No statistically significant differences were found when comparing the BOSI indices of patients with and without positive bendopnea.

CONCLUSION. Bendopnea may be a promising additional diagnostic tool for dyspnea in older patients. Given its high incidence in sarcopenic obesity, further studies are required to assess its prognostic value in this category of older patients.
The Effect Of Liquidity, Leverage And Profitability On Company Value
Authors: Permata Adilla Cahya , Muktiadji Nusa , Khim Soei , Silaen Uluan
Published: February 2025

This Study aiming to know how influence Liquidity, Leverage, and Profitability On Company Value. In sub sector companies pharmacy. Research use approach quantitative. Data collection techniques sample use purposive sampling with amount sample as many as 7 companies. The type of data used is secondary data from report finance 2018-2022. This Study use statistical analysis and multiple linear analysis with using SPSS 26. The results of partial test research or t test shows that variable Liquidity (current ratio) and profitability (return on assets) have an effect to Company Value (price to book value), whereas Leverage (debt to equity ratio) no influential to Company Value (price to book value). Based on simultaneous testing or the f test shows that variable Liquidity (current ratio), leverage (debt to equity ratio), and profitability (return on assets) have an effect to Company Value (price to book Value).
 
Keywords :​ Liquidity (current ratio), leverage (debt to equity ratio), and profitability (return on assets) have an effect to Company Value (price to book Value).
THE EFFECTIVENESS OF THE APPLICATION OF TEACHMINT LEARNING MEDIA BASED ON THE SAVI LEARNING MODEL TO IMPROVING IPAS LEARNING OUTCOMES
Authors: Nitte Yulsy , Nahak Kristina E Noya , Modok Elsya , Naitili Cornelia A.
Published: February 2025

The aim of this research was to determine the effectiveness of utilizing Teachmint media integrated with the SAVI learning model in improving Integrated Science and Social Studies (IPAS) learning outcomes among fifth-grade students of SD GMIT Oepura, Kupang City. This research employed a quantitative approach with a Quasi-Experimental design. The sample was selected using a purposive sampling technique, consisting two classes: Class V-A as the experimental group and Class V-B as the control group. The data collection technique consisted of a test comprising 20 multiple-choice questions. The application of the Direct Instruction model with a lecture method in the control class resulted in an average pre-test score of 50.48 and a post-test score of 62.62, indicating an improvement of 12.14 points. Meanwhile, the SAVI learning model supported by Teachmint media in the experimental class achieved an average pre-test score of 55.24, which increased to a post-test score of 87.86, reflecting an improvement of 32.62 points. The research findings were reinforced by hypothesis testing and t-test analysis of the post-test scores from both the control and experimental groups. The Independent Sample Test produced a significance value (2-tailed) for the t-test for Equality of Means of 0.000, which is less than the threshold of 0.05. This result confirms the acceptance of the alternative hypothesis (Ha), indicating a significant effect of the SAVI model supported by Teachmint media on IPAS learning outcomes, particularly for the theme "Getting Acquainted with Our Earth," among fifth-grade students of SD GMIT Oepura, Kupang City.
Técnicas de aprendizado por reforço para melhorar o comportamento adaptativo de NPCs em um jogo Roguelike/Roguelite
Authors: Rodrigues Luis Cuevas , Pinheiro Clairon Lima , Souza Kelly Christiane Silva de , Simão Maria Olívia de Albuquerque Ribeiro , Araújo Cristina Souza de , Silva Junior Jucimar Maia da
Published: February 2025

Os jogos Roguelike/Roguelite destacam-se por sua geração procedural, alta dificuldade e rejogabilidade, proporcionando experiências únicas a cada sessão. Neste contexto, os NPCs (Personagens Não-Jogáveis) desempenham um papel fundamental ao interagir dinamicamente com os jogadores. Este estudo revisa o uso de técnicas de Aprendizado por Reforço (Reinforcement Learning - RL) aplicadas ao comportamento adaptativo de NPCs em jogos Roguelike, permitindo que estes aprendam e ajustem suas estratégias com base no desempenho e nas ações dos jogadores. A adaptação dos NPCs promove uma experiência mais envolvente, desafiadora e personalizada. Além de revisar os métodos e aplicações existentes, o trabalho discute desafios, como o alto custo computacional e a necessidade de balanceamento entre usar o já conhecido ou buscar outras alternativas que podem ser melhores, apresentando também oportunidades para futuras pesquisas.
ENVIRONMENTAL PROTECTION AREAS (EPA) IN BRAZIL: IMPORTANCE AND MANAGEMENT CHALLENGES
Authors: Lima Ricardo Elias do Vale , Braz Ví­vian da Silva
Published: February 2025

THE ARTICLE DISCUSSES THE HISTORY AND EVOLUTION OF ENVIRONMENTAL PROTECTION AREAS (EPAS) IN BRAZIL, INSPIRED BY FRENCH AND PORTUGUESE MODELS, EMERGING IN THE 1980S. ENVIRONMENTAL LEGISLATION, INCLUDING THE NATIONAL SYSTEM OF NATURE CONSERVATION UNITS (SNUC), IS ADDRESSED AS A CRUCIAL TOOL FOR THE PROTECTION AND MANAGEMENT OF EPAS. THE METHODOLOGY EMPLOYED A SYSTEMATIC LITERATURE REVIEW, ENCOMPASSING SCIENTIFIC ARTICLES AND TECHNICAL DOCUMENTS. THE RESULTS HIGHLIGHT CHALLENGES SUCH AS TERRITORIAL CONFLICTS, INAPPROPRIATE LAND USE, AND A LACK OF EFFICIENT MANAGEMENT, INCLUDING MANAGEMENT PLANS AND GOVERNING COUNCILS. THE NEED FOR URGENT MEASURES TO STRENGTHEN MANAGEMENT, INVEST IN ENFORCEMENT, AND PROMOTE SOCIAL PARTICIPATION IS EMPHASIZED, ENSURING THE EFFECTIVENESS OF EPAS IN CONSERVING BRAZIL'S NATURAL RESOURCES.
Peran Artificial Intelligence dalam Meningkatkan Pembelajaran Interaktif Bahasa Arab
Authors: Hadi Mardi , Qohar Hendri Abdul
Published: February 2025

The Arabic language plays a significant role in religious education, diplomacy, and economics; however, its learning process faces complex challenges, such as difficulties in understanding grammar (nahwu) and morphology (sharaf). This research aims to analyze how Artificial Intelligence (AI) can address these challenges and enhance interactive Arabic language learning, particularly in terms of personalization and effectiveness. The research employs a descriptive qualitative method by reviewing literature, scientific journals, and previous research reports, as well as conducting in-depth interviews with teachers and students utilizing AI technology. Data were also collected through observations of AI-based applications, such as chatbots and learning platforms, to understand their implementation and effectiveness. Analysis was performed using content analysis methods, supplemented by data triangulation, to produce valid and comprehensive findings. The study reveals that the transformation brought by artificial intelligence (AI) technology has revolutionized Arabic language learning by accelerating, simplifying, and personalizing the learning process. Key challenges, such as morphological complexity and dialectal diversity, have driven the development of technologies like Natural Language Processing (NLP) and AI-based voice recognition. Through an interdisciplinary approach that is culturally sensitive, AI is expected to create a more adaptive and inclusive Arabic learning experience.
Of fish, frogs and fire: Donatello and his collaborators in Padua
Authors: Zolli Daniel M.
Published: February 2025

Donatello travelled to Padua in his artistic prime, and he stayed there from about 1444 to 1454. At no other juncture in his career did the demands of multiple assignments require him to keep such crowded and diverse artistic company in his shop. At the same time, moving his base of operations inevitably brought the sculptor into contact with new collaborators, including (but not limited to) a veritable diaspora of metalworkers from across northern Italy, among them Andrea Conti, likely the owner of Padua’s pre-eminent foundry. This article is concerned with the world that Donatello and his collaborators created when their paths converged, in a temporary configuration, around the problematic of producing works in bronze. It endeavours, first, to sketch the range of personnel with whom Donatello worked at his Paduan worksites, and to demonstrate, second, how taking their contributions seriously allows us to connect the interpretative dots differently in works such as the Gattamelata monument. As with much else relating to Donatello, that work’s ingenuity is fed by multiple artisanal channels, partaking in the operations of the arms-maker, founder and goldsmith, but is irreducible to any one of these crafts.
Unveiling the Interior Structure and Thermal Evolution of Super-Earth GJ 486b
Authors: Sahu Chandan K. , Majumdar Liton , Mridha Sudipta , Krishna Harshit
Published: February 2025

Recent ground- and space-based surveys have shown that planets between Earth and Neptune in size, known as “super-Earths,” are among the most frequently found planets in the Galaxy. Although the JWST era has provided high-quality atmospheric data on many such super-Earths, modeling tools are crucial for understanding their unobservable interiors. Consequently, interior studies represent the next essential step in gaining a comprehensive understanding of this class of exoplanets. This study investigates the interior structure, thermal evolution, and atmospheric dynamics of the super-Earth GJ 486b using SERPINT, a 1D self-consistent coupled interior structure and evolution model, aiming to understand the planet’s thermal evolution based on an Earth-like structure. Our results indicate that GJ 486b’s core is approximately 1.34 times larger than Earth’s, with a core pressure of about 1171 GPa. The thermal evolution model predicts that the planet’s mantle cools and solidifies over approximately 0.93 Myr. As the magma ocean cools, water is released from the melt, forming a water-rich atmosphere during early solidification. Photolysis of water vapor and subsequent hydrogen escape lead to oxygen accumulation, forming a water- and oxygen-rich secondary atmosphere. Future high-sensitivity JWST observations, with improved wavelength coverage and the detection of additional trace gases, will enable a detailed analysis of the planet’s atmospheric composition, providing crucial insights into the interior, surface, and subsurface properties of GJ 486b.
Four new species of Pichia (Pichiales, Pichiaceae) isolated from China
Authors: Guo Liang-Chen , Hu Shuang , Zhu Hai-Yan , Shang Yu-Jie , Qiu Yan-Jie , Wen Zhang , Chen Shen-Xi , Bai Feng-Yan , Han Pei-Jie
Published: February 2025

The genus Pichia belonging to the family Pichiaceae is widely distributed worldwide and has garnered significant attention due to its importance in various industries and its potential role in human infections. During our investigation of yeast diversity in China, several strains representing undescribed taxa were isolated from forests in Hainan province, Hubei province, Beijing city and a mudflat in Guangdong province. Based on phylogenetic analyses of the internal transcribed spacer (ITS) region and the D1/D2 domain of the large subunit (LSU) rRNA, these strains were identified as four new species: Pichia kregerianasp. nov. (holotype strain CGMCC 2.7383T), P. phaffiisp. nov. (holotype strain CGMCC 2.8239T), P. ureolyticasp. nov. (holotype strain CGMCC 2.6825T) and P. wuzhishanensis f.a. sp. nov. (holotype strain CGMCC 2.7381T). The six strains of P. ureolytica were identified as positive for urease production. This phenomenon is extremely rare in the genus Pichia, as only P. bovicola is reported to exhibit weak urease activity.
Morphological characteristics and phylogenetic analyses reveal five new species of Hymenochaetales (Agaricomycetes, Basidiomycota) from southwestern China
Authors: Dai Yunfei , Yuan Qi , Yang Xin , Liu Rui , Liu Defu , Yuan Haisheng , Zhao Changlin
Published: February 2025

Wood-inhabiting fungi can decompose wood materials and play a crucial role in the natural world by maintaining the equilibrium of the Earth’s ecosystems. In the present study, five new wood-inhabiting fungal species belonging to the order Hymenochaetales, Hymenochaete weishanensis, Lyomyces albofarinaceus, Lyomyces albomarginatus, Tubulicrinis albobadius and Xylodon musicola, collected from southern China, are proposed based on a combination of morphological features and molecular evidence. Hymenochaete weishanensis is characterized by a coriaceous, tuberculate hymenial surface, a monomitic hyphal system with simple-septate generative hyphae, and ellipsoid to narrow ellipsoid basidiospores (4.0–5.0 × 2.0–3.0 µm); Lyomyces albofarinaceus is characterized by pruinose hymenial surface, a monomitic hyphal system with clamped generative hyphae, and broadly ellipsoid basidiospores (6.0–7.0 × 5.0–6.0 µm); Lyomyces albomarginatus is characterized by the cracked hymenial surface, clamped generative hyphae, and elliposoid basidiospores (4.0–5.5 × 2.7–3.5 µm); Tubulicrinis albobadius is characterized by an arachnoid hymenial surface, a monomitic hyphal system with clamped generative hyphae and cylindrical to allantoid basidiospores (4.0–6.0 × 1.5–2.2 µm) and Xylodon musicola is characterized by an arachnoid hymenial surface, a monomitic hyphal system with clamped generative hyphae and broadly ellipsoid to globe basidiospores (4.0–5.5 × 3.5–5.0 µm). Sequences of the internal transcribed spacers (ITS) and the large subunit (nrLSU) of the nuclear ribosomal DNA (rDNA) markers of the studied samples were generated. Phylogenetic analyses were performed using maximum likelihood, maximum parsimony, and Bayesian inference methods. Full descriptions, illustrations, and phylogenetic analysis results for the five new species are provided.
Le sexe des mystiques. Simone de Beauvoir et Jacques Lacan
Authors: Yvan Frédéric
Published: February 2025

À la célèbre formule de Simone de Beauvoir – « On ne naît pas femme. On le devient », Jacques Lacan répondra, presque un quart de siècle plus tard, par un non moins célèbre aphorisme : « La femme n’existe pas. » Déjà, auparavant, le psychanalyste jugeait de cette conception du deuxième sexe par la philosophe comme une sottise : « Ce qu’on appelle “le sexe” – voire le deuxième, quand c’est une sotte […]. » Cette affaire entre Simone de Beauvoir et Jacques Lacan, concernant le genre et la féminité, s’est largement jouée autour de la lecture des mystiques : c’est précisément cette controverse que nous souhaitons exposer et confronter en nous attachant aux déterminations propres à chacune des parties à la figure des mystiques.
« Va-t’en, maudite tache. » Pour une tentative perpétuelle de l’auto-indétermination
Authors: Bastien Gral
Published: February 2025

Dans cette intervention, il s’agit de partir de ma pratique photographique et performative pour questionner la possibilité du dégenrage, projet politique au cœur de mes dynamiques transidentitaires et à la croisée des représentations. Ouvrant un dialogue entre projets artistiques et considérations théoriques, je pars de l’étude critique du regard genré pour me diriger vers la volonté d’une désidentification plus générale, notamment à travers les outils que sont le désexage, les opérations d’abstraction identitaire ou encore de démultiplication. En outre, c’est le projet utopique et paradoxal de l’auto-indétermination qui est ici au cœur de mes réflexions, faisant dès lors l’éloge de la tentative perpétuelle, de l’échec vertueux et de la nécessité d’un état de transition.
Virtuosas e claras mugeres de Álvaro de Luna: escritura y erudición en la corte de Juan II
Authors: Marini Massimo
Published: February 2025

El tratado de don Álvaro de Luna titulado Virtuosas e claras mugeres (1446) se inserta en el debate sobre la mujer que, desde Cataluña, aviva la actividad literaria de la corte castellana, especialmente a partir de los años Treinta del siglo XV. Como han demostrado las ediciones críticas y los estudios de conjunto del texto, la compilación de Álvaro de Luna presenta estratificaciones lingüísticas y estilísticas que coinciden con la división de los libros y dependen de las fuentes utilizadas en cada una de ellas. Tomando como punto de partida una de las biografías del segundo libro, la de la heroína romana Clelia, el trabajo pretende ejemplificar el uso de las fuentes y de los materiales por parte del autor, para enmarcar su obra en el clima cultural cuatrocentista, tan fundamental para el desarrollo y evolución de las letras hispanas en épocas posteriores.
Diego de Valera, cortesano y poeta
Authors: Tomassetti Isabella
Published: February 2025

Diego de Valera fue un letrado muy versátil, cuya vocación literaria se expresó en varios géneros, desde el tratado político hasta la crónica, pasando por la epístola y la poesía. Su talante de escritor integral hace que cualquier aproximación a sus obras implique un conocimiento cabal de su producción, ya que sus textos constituyen un entramado rico y complejo. Este trabajo se centra en la trayectoria literaria del conquense, identificando en algunos poemas las etapas más importantes de su experiencia política, estética y vital.
Strategy and Practice for Improving Supply Chain Management through Mobile Interaction Technology
Authors: Liu Jia
Published: February 2025

With the rapid development of the global economy and the continuous advancement of information technology, supply chain management is facing increasingly complex challenges. Traditional supply chain management methods often struggle to meet rapidly changing market demands and efficient material allocation needs, and there is an urgent need for new technological means to enhance their flexibility and response speed. Mobile interactive technology, with its ability to transmit information across time and space, has gradually become an important innovative tool in the field of supply chain management. By introducing mobile interaction technology, various links in the supply chain can achieve more immediate and efficient communication and collaboration, thereby promoting the optimization and improvement of the entire supply chain. Although many studies have explored the application of mobile technology in the supply chain, most of them focus on the analysis of single links or specific cases, lacking a systematic and comprehensive perspective. In response to this research gap, after systematically analyzing the multidimensional impact of mobile interaction technology on supply chain management, corresponding strategy and practical framework were proposed in this study. The research content of this study mainly includes four aspects: a) the analysis of the impact of supply chain materials; b) the analysis of the impact of mobile interaction on improving supply chain management; c) the analysis of the sustained impact scope of mobile interaction in supply chain collaboration activities; d) the adjustment strategy for the priority of supply chain collaboration activities. This study not only provides a new perspective for supply chain management theory but also provides specific guidance and decision support for the application of technology in enterprise practice, which has high academic value and practical significance.
Entre genre et espèces : héroïnes végétales, intersections médiévales
Authors: Genest Viviane
Published: February 2025

La question de l’articulation entre l’humain et l’animal a fait l’objet de plusieurs travaux au sein des sciences humaines qui montre sa corrélation avec des logiques de domination et de hiérarchisation. Qu’en est-il pour le végétal ? Quels liens, analogies, continuités ont pu être formulées entre les plantes et l’humain ? De récentes études ont souligné que le Moyen Age est une période charnière pour l’élaboration en Occident d’une pensée du vivant. Le présent article postule que ce long temps d’incubation ne s’est pas contenté de mettre en mots un discours ayant pour seul objet le végétal. Il s’agit toujours en réalité de penser les êtres vivants de façon relationnelle, par rapport à l’humain. Toutefois, du Moyen Age central à la fin de la période a lieu une bascule qui fait passer de conceptions plutôt vitalistes où le végétal est pensé dans une forme de continuité avec une humanité peu ou pas appréhendée en termes de genre, à des conceptions qui, par petites touches insistantes, établissent des corrélations entre féminin et végétal, notamment pour ce qui touche la physiologie. Dans des corpus variés, mais influencés notamment par les textes encyclopédiques, se fait jour une intersection entre genre et espèce, en même temps que dans le domaine lexical, sous l’influence de la pensée aristotélicienne, le sémantisme veget* va être associé à la passivité. Le présent article, exploratoire, propose une exploration de corpus variés pour affiner et documenter ce changement, dans le cadre d’une recherche en cours.
Sharp Images and Unsharp Masks
Authors: Heilmann Till A.
Published: February 2025

Today, almost all images, from smartphone photos to magazine ads, are algorithmically sharpened, redefining aesthetic standards and altering our perception of what constitutes a “good” image. Sharp is the visual default of everyday photographic culture. This article explores the genealogy of unsharp masking, a method for enhancing images popularized by Adobe Photoshop. Originally developed as an “analog” technique to prevent loss of information in reproducing high-contrast originals, unsharp masking has shifted from preserving details to increasing acutance—i.e., perceived sharpness. This transition reflects its transformation from a specialized tool in fields like X-ray medicine and astrophotography to a universal optimization process in the digital image pipeline. Normalized and largely automated, unsharp masking profoundly influences visual culture.
The Lens Flare. Photorealistic Computer Graphics between Physics and Economic Viability
Authors: Schröter Jens
Published: February 2025

Since roughly the 1970s, the quest for photorealism has been the driving force behind computer graphics. The goal is not only to render scenes in such a way that they look “realistic,” but specifically to render scenes in a way that they look as if they were photographed. The initial motivation for this was to integrate scenes produced with computer graphics into films that were otherwise recorded photographically. Producing images that look like photos also means reproducing some effects typical of photographic image-making processes like different kinds of blur and specific disturbances like lens flares. The simulation of lens flares is the topic of this essay, which, through close analysis of one computer science paper, will show that the processes of simulating photography are always caught between two different and competing goals: on the one hand, there is the idea of simulating a given photographic property—lens flare in the case of this paper— in a way that is physically correct, a process that may need considerable computational resources and time. On the other, there is the economic goal of performing the rendering efficiently and at comparatively low cost.
L’Algérie socialiste de Djamel Farès. Le quotidien comme révolution silencieuse
Authors: Prodhon Gaëlle
Published: February 2025

Les cultures visuelles de l’Algérie socialiste se nourrissent du modèle soviétique du réalisme socialiste à partir de l’indépendance algérienne en 1962. Certains photographes algériens, faisant souvent face à des contraintes financières et matérielles, répondent à des commandes ou travaillent pour la presse étatique tout en développant parallèlement des approches photographiques personnelles. Leurs pratiques et leurs images se déploient dans des espaces de visibilité complexes, où les frontières entre photographie officielle, voire de propagande, et démarche auctoriale sont poreuses. En partant de la consultation du fonds privé du photographe Djamel Farès, l’un et l’autre encore peu connus, constitué d’un corpus d’images inédites produites entre 1968 et 1978, combinée au témoignage du photographe, l’article propose de révéler les réseaux et mondes sociaux qui ont alimenté et dirigé le parcours de Farès, des milieux de la gauche française aux cercles du pouvoir algérien et réseaux tiers‑mondistes.
Intimité immédiate. Hannah Villiger et les images instantanées
Authors: Revellat Aïcha
Published: February 2025

Cet article examine la façon dont Hannah Villiger (1951-1997) s’est approprié les spécificités de la photographie instantanée dans les années 1980 et 1990 pour produire des images photographiques grand format de son propre corps, lesquelles, selon sa conception, possèdent un caractère sculptural. Il analyse aussi les liens entre son œuvre et d’autres pratiques postconceptuelles, notamment celles d’artistes queers et féministes recourant également à des technologies d’image instantanée telles que le Polaroid, les cabines Photomaton, les miroirs et la photocopie Xerox.Selon la thèse exposée dans cet article, en raison des stratégies performatives et temporelles basées sur le séquençage et la répétition, la pratique de Villiger présente une proximité particulière avec celle des artistes vidéastes. Mais au lieu de concevoir l’immédiateté comme une qualité inhérente à la technologie de l’image instantanée, l’impression d’immédiateté et d’intimité est envisagée comme un effet produit par les techniques médiatiques entre le corps et l’appareil photo.
Ce que la Constitution de 1976 retient de la révolution des Œillets. Analyse juridique du processus et des débats constituants
Authors: Connil Damien , Löhrer Dimitri
Published: February 2025

L’article analyse, sous l’angle du droit constitutionnel, la place et l’importance de la révolution des Œillets dans l’élaboration de la Constitution portugaise de 1976. Dans cette perspective sont examinées l’influence de la dynamique révolutionnaire sur le processus et l’empreinte de la révolution sur les débats constituants. L’étude entend ainsi contribuer à une meilleure connaissance du lien consubstantiel, au Portugal, entre le phénomène révolutionnaire de 1974 et le mouvement constituant de 1976.
Inorganico pre e post-umano: Giacomo Leopardi e la geologia nelle Operette morali
Authors: Ambrosino Gennaro
Published: February 2025

Dalla metà del Settecento, le scienze della Terra, e in particolare la geologia, hanno conosciuto un rapido sviluppo, segnato dal confronto tra diverse correnti (nettunisti e plutonisti, uniformisti e catastrofisti) e dalla proliferazione di numerose teorie della Terra. Questo periodo è culminato negli anni Trenta dell’Ottocento con la pubblicazione dei Principles of Geology (1830‑1833) di Charles Lyell (1797‑1875). In questo articolo, intendo esaminare la conoscenza geologica di Giacomo Leopardi e il suo utilizzo nei testi letterari, mostrando come l’analisi del sapere geologico permetta, da un lato, di evidenziare consonanze e affinità tra Leopardi e alcuni scienziati e filosofi della natura, tra cui Lyell, William Hamilton (1730‑1803), James Hutton (1726‑1797) e Alberto Fortis (1741‑1803); dall’altro, consenta di approfondire e rileggere in modo innovativo alcuni aspetti del pensiero filosofico di Leopardi. Mi concentrerò in particolare sull’uso dell’immaginario geologico nelle Operette morali, rileggendo la critica all’antropocentrismo di Leopardi alla luce del concetto geologico di deep time e la permeabilità delle categorie di organico e inorganico alla luce del principio geologico dell’attualismo e del processo di fossilizzazione.