bluuebunny/crossref_metadata_2025 huggingface dataset:
PERAN LITERASI KESEHATAN MENTAL, LOKUS KONTROL, DAN GENDER TERHADAP SIKAP MENCARI BANTUAN PROFESIONAL PSIKOLOGI PADA MAHASISWA
Authors: Srideswari Putri I Dewa Ayu , Wilani Ni Made Ari
Published: July 2024

As an undergraduate student, individuals are faced with various challenges and risk to experience psychological problems. The positive attitude toward seeking professional psychological help is needed by students to have a tendency to seek rather than refuse professional help so that they can solve psychological problems that have been experienced. Individual attitudes toward seeking professional help are influenced by several factors such as mental health literacy, locus of control, and gender. This study is aimed to determine the role of mental health literacy, locus of control, and gender toward attitudes to seek professional psychological help on undergraduate students in Bali. This study was conducted using a quantitative survey method with the research subjects were 318 undergraduate students at universities in Bali aged 18-25 years and domiciled in Bali. The results of the multiple regression test showed that there were roles of mental health literacy, locus of control, and gender in increasing the attitudes toward seeking professional psychological help (F=24,040; p=0,000<0,05). Mental health literacy, locus of control, and gender also partially played a role in increasing attitudes toward seeking professional psychological help (mental health literacy: t=5,749, p=0,000; internal locus of control: t=4,147, p=0,000; external locus of control: t=2,236, p=0,026; gender: t=3,222, p=0,001). The implication of this research is to provide consideration for issues that prevent students from seeking professional psychological help.
Perilaku Konsumtif: Non-professional Player pada Game Online Mobile Legends di Kota Malang
Authors: Athii'uullah Afif Muhammad , Hadi Nur
Published: July 2024

Salah satu game online yang peminatnya cukup tinggi adalah Mobile Legends. Aksesibilitasnya memudahkan bagi setiap kalangan untuk bermain dan menyebabkan kompetisi antar player semakin tinggi. Para player Mobile Legends yang menyandang status non-professional player berlomba-lomba untuk mendapatkan status sosial yang diharapkan berdasarkan tingkatan level game tersebut. Hal ini memicu adanya kecanduan psikologis bagi para player Mobile Legends untuk terus bermain dan rela menghabiskan tenaga maupun materi. Maka dari itu, muncul fenomena konsumerisme dari kalangan pemuda yang bermain Mobile Legends khususnya di Kota Malang. Berdasarkan hal tersebut, tujuan penelitian ini adalah untuk menganalisis fenomena konsumerisme berupa pembelian virtual items dan penggunaan jasa wanprestasi (joki ML) yang terjadi pada pemuda di Kota Malang sebagai non-professional player Mobile Legend. Penelitian ini dilakukan dengan metode kualitatif dengan pendekatan fenomenologi. Jumlah subjek penelitian adalah 9 orang. Penelitian ini menggunakan teori Hiperrealitas Konsumerisme milik Jean Baudrillard untuk menganalisis fenomena konsumerisme yang dilakukan para non-professional player Mobile Legends dengan melakukan triangulasi data dan teori. Hasil penelitian menunjukkan bahwa pemuda di Kota Malang rela mengeluarkan uang yang cukup banyak untuk membeli virtual items berupa skin maupun hero dan menggunakan jasa wanprestasi (joki ML) agar status level mereka bisa setara dengan teman sebaya dan mendapat pengakuan dari orang sekitar. Hal ini menunjukkan bahwa virtual items seperti skin dan hero bukan lagi berfungsi untuk meningkatkan kemampuan bermain, melainkan menjadi simbol status dan pengakuan sosial. Hal ini mengakibatkan terjadinya Konsumerisme berlebihan hingga terjadinya gangguan psikologis bagi para pemain.
Konzeptuelle Metaphern zum Thema Corona (COVID 19) am Beispiel des online-Nachrichtenmagazins „Der Spiegel“
Authors: Pandža Nikolina
Published: July 2024

In our increasingly interconnected world, the global outbreak of the infectious disease COVID-19 was spreading rapidly, resulting in drastic consequences. This is why we decided to analyse the use of conceptual metaphors in the „Corona“- column of the German Spiegel‘s online portal in the three year period (2020, 2022 and 2023). In the centre of this analysis will be ten headlines with subtitles of articles, podcasts and reports on the topics of coronavirus conspiracy theories, measures, the mask affair and the loosening of coronavirus measures. This analysis aims to grasp different concepts related to the topic of the coronavirus discussing following questions: What types of conceptual metaphors are used (e.g. orientational metaphors or ontological metaphors)? Which frames or knowledge structures are present? What source areas do authors use to conceptually represent the target area? The theoretical part about the cognitive background of this article is based on Lakoff and Johnson’s approaches. First, expressions and syntagms will be explored semantically, then analysed conceptually within the context. The analysis will be supported by various online dictionaries (Duden-Online, DO; Digitales Wörterbuch der deutschen Sprache, DWDS). In addition, my own linguistic experience as well as morpho-syntactic and stylistic devices (sarcasm, irony, exaggerations, understatements) will be considered.
Currents’ Physical Components (CPC): a new framework for studies on Power Quality and its improvement and some observations
Authors: Czarnecki Leszek S. ,   Department of Electrical Engineering and Computer Science Louisiana State University Baton Rouge, USA
Published: July 2024

The article shows that the term “Power Quality” (PQ) seems to be only engineering jargon, therefore, it is suggested that the terms “Supply Quality” (SQ) and “Loading Quality" (LQ) are used in studies on Power Quality in electrical systems. Studies on PQ are associated with studies on Power Theory (PT) and compensation in systems with nonsinusoidal voltages and currents. Unfortunately, there is more than century-long confusion on powers in electrical systems and several mutually conflicted schools of PT have occurred. The only yet not challenged concept of PT is that based on the Currents’ Physical Components (CPC), developed by the author of this article. Therefore, it seems that just CPC-based PT should be used as a fundamental for studies on PQ. The paper presents a short draft of the CPC concept with an emphasis on the physical interpretation of energy flow-related phenomena. Some observa-tions related to renewable energies, and global warming, are included as well.
Design and Analysis of Switch Mode Power Supply Adapters
Authors: Abu-aisheh Akram A. ,   Department of Electrical and Computer Engineering University of Hartford, West Hartford, CT, USA
Published: July 2024

The primary objective of this paper is to present a road map plan for the design, simulation, and analysis of a universal switch-mode supply adapter. This adapter can be used to connect AC or DC power supplies to AC or DC loads. There are adapters available for various household appliances, laptops, and other electronic devices. The need for a universal power supply adapter comes when the electrical power supply needs to be converted in order to meet input the requirements of the load. This paper focuses on the design and simulation of a universal power supply adapter with the primary aim of powering DC and AC loads using a solar cell to charge a 24V battery as a primary source and the AC line voltage as a secondary source. In order to achieve the desired result, this design requires the universal power supply adapter to have three main design components: a switch-mode power supply, a switch-mode DC to DC regulator, and an inverter. Photovoltaic panels are used as the primary DC power sources of the system with a battery for energy storage, and the DC to AC inverter to feed AC loads. This paper focuses of the design, simulation, and analysis of these three components.
Optimal Lithium-Ion Ageing Mechanisms Configuration for Physics- Based Modelling Software
Authors: Obrador S. ,   1. Power Systems, Catalonia Institute for Energy Research (IREC) Sant Adrià del Besòs, Barcelona. Spain, Canals L. , Trilla L. ,   Project and Construction Engineering Department, Universitat Politècnica de     Catalunya (UPC) Barcelona. Spain
Published: July 2024

Reduced-order physics-based models hold the potential for enhancing the performance and extending the lifespan of lithium-ion batteries in practical battery management system applications. However, there is an urgent need to establish a correlation framework between these models and the integration of robust adaptative aging mechanisms that represent the electrochemical domain. This article uses SPM parameters and real experimental data to emulate different adaptive block configurations. Aiming to define their requirements and optimal applicability. Results show that electrode diffusivity, particle radius, and the proper identification of its boundaries, are the keys to obtaining physically meaningful results with adaptative ageing mechanisms. Key words. Lithium-Ion, Ageing Mechanisms, Physics-Based Models, Battery Management Systems.
Influence of tin addition to Al-3%Mg (wt.%) alloys for hydrogen generation
Authors:   Department of Manufacturing and Materials Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil, Giovanetti L. , Rodrigues A.V. ,   Department of Manufacturing and Materials Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil. Federal Institute of Education, Science and Technology of São Paulo, 12903-000 Bragança Paulista, SP, Brazil, Kakitani R. ,   Department of Manufacturing and Materials Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil, Silva C. ,   Department of Manufacturing and Materials Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil, Brito C. ,   Department of Aeronautical Engineering/School of Engineering, São Paulo State University, Mei P.R. ,   Department of Manufacturing and Materials Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil. Federal Institute of Education, Science and Technology of São Paulo, Garcia A. ,   Department of Manufacturing and Materials Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil, Cheung N. ,   Department of Manufacturing and Materials Engineering, University of Campinas, 13083-860 Campinas, SP, Brazil
Published: July 2024

Global attention is increasingly focused on recycling and clean energy generation. The present study delves into both areas by examining the reuse of secondary aluminium for hydrogen generation. The aim is to investigate how the microstructural length scale influences the hydrogen production behaviour of two Al-3%Mg (wt.%) alloys, with and without a 10% Sn addition. Al-3%Mg serves as base for commercial alloys like 5056, 5154, and 5754. Additionally, since Sn is normally used as a solid lubricant for bearings, the analysis also extends to Sn-containing Al-Mg alloys, which can be repurposed for clean energy generation, after the end of their life service. Solidified samples with varying microstructural length scales underwent hydrogen evolution tests in a 1 M NaOH solution. While the binary alloy shows no sensitivity with respect to the microstructural length scale in hydrogen production rate, Sn not only exhibits sensitivity but also boosts it by approximately 350 % when both alloys are compared.
Study of the energy potential of surplus green hydrogen produced in a sodium chlorate manufacturing plant
Authors: Gerfauo M. ,   Department of Mechatronics Engineering. UTEC, Technological University of Uruguay, Dias S. F. P.
Published: July 2024

This paper addresses the inherent energy potential of hydrogen generated as a byproduct in a sodium chlorate production plant, emphasizing the existence of a significant surplus that is released into the atmosphere. Different technological options aimed at efficiently utilizing this surplus hydrogen are presented and discussed, covering areas such as energy storage, sustainable mobility, as well as Power-to-Gas and Power-to-Liquid technologies. With the objective of elucidating the potential economic and social impact of each approach, while taking into account the regional peculiarities inherent to the manufacturing plant. The results obtained indicate that the integration of hydrogen as a clean energy source can optimize operational efficiency and reduce the carbon footprint associated with sodium chlorate production. Consequently, this leads to increased energy autonomy for the facility and contributes to the principles of environmental sustainability. The study emphasizes the potential of hydrogen as a valuable and sustainable resource, promoting benefits for both the industrial sector and the environment. It is important to note that the production process generates a significant amount of waste, with an estimated annual volume of 750 tons. This highlights the need to implement efficient waste management practices and avoid unnecessary waste of this crucial energy carrier. By minimizing waste and maximizing the utilization of hydrogen, we can further enhance the economic and environmental benefits associated with its production and utilization. Key words. Green Hydrogen, Energy Efficiency, Hydrogen Characteristics, Sodium Chlorate, Power-to-X.
Work accidents prevention by risks assessments to 400 kV Tantareni power substation from Romania
Authors: Fita Daniel N. ,   Strategic Studies of Energy Security Research Center, University of Petrosani.     Romania, Mureșan-Grecu Florin , Schiopu Adrian M. ,   Industrial Engineering Doctoral School, University of Petroșani. Romania,   Strategic Studies of Energy Security European Center of Petrosani. Romania
Published: July 2024

Based on the principles of prevention, the employer must seek to eliminate risk at source and, in order of priority, to replace hazards through non-dangers, to separate or isolate areas where there are hazards, ensuring adequate collective and individual protection. However, workers from high and very high voltage power substations continue to be exposed to occupational hazards, suffering accidents at work and occupational diseases with significant repercussions on their health, on colleagues or National Power System. Accidents at work and occupational diseases are the unseen face of wage labor, industrialization and economic development. Unfortunately, they are most often the general concern of society when tragedies occur, as was the case with explosions, of collective accidents with many victims or of particularly dangerous incidents that could have had dramatic consequences. According to the Law on Occupational Health and Safety no. 319/2006, the event means the accident that caused the death or injuries of the body, produced during the work process or in the performance of duties, the situation of missing person or the accident of route or traffic, under the conditions in which employed persons were involved, the dangerous incident, as well as the case susceptible to occupational or occupational disease. Key words. Work accidents, risk assessment, substation
Short term energy management in stand-alone PV-battery-diesel systems
Authors: Dufo-López Rodolfo ,   Department of Electrical Engineering. E.I.N.A., Zaragoza University. Spain, Lujano-Rojas Juan M. , Bernal-Agustín José L. , Artal-Sevil Jesús S. , Bayod-Rújula Ángel A. , Tejero-Gómez Juan A.
Published: July 2024

In this work, the short term (daily) operation of an off-grid hybrid PV-diesel-battery system is optimized by genetic algorithms. An integer variable (0, 1 or 2) for each hour of the day decides the way the battery works. With the forecast of the hourly irradiation, temperature and load consumption for the next day, and estimating the state of charge of the battery (SOC) at the first hour of the day, we perform the optimization of the integer variables for the 24 hours of next day. To avoid inadmissible computation time, the optimization is performed by using genetic algorithms (GA) obtaining in roughly 1 hour the optimal solution or a solution near the optimal one. The optimization tries to obtain the minimal total cost of the daily operation while supplying the whole load. We compare the results of the optimization with the typical control strategies (load following, cycle charging and set point strategies), obtaining better results with the new optimized strategy. The reduction in the operational cost obtained varies from 2.5% to 62%, compared to the typical control strategies (load following or cycle charging). Key words. PV-diesel-battery systems, off-grid, daily operation, control strategy, optimization, genetic algorithms.
Efficiency Analysis of an Interleaved Converter as Power Interface between a PEM Electrolyzer and a Photovoltaic Source.
Authors: Vitale Gianpaolo ,   ICAR, Institute for high performance computing and networking, National Research Council (CNR), Palermo. Italy
Published: July 2024

This paper deals with the conversion efficiency of an interleaved six-legs DC/DC converter used as an interface between a photovoltaic source and an electrolyzer. Different configurations of the photovoltaic sources are analysed, varying the numbers of the operated legs of the converters. The efficiency is affected by the high current required by the electrolyzer; however, the analysis shows that the optimal configuration of the PV source and of the number of the converter’s operated legs can improve performance. Key words. photovoltaic source; DC/DC converter; interleaved converter, PEM electrolyzer; efficiency; Hydrogen.
Reflection probe interpolation for fast and accurate rendering of reflective materials
Authors: Gojkovic Katarina ,   University of Ljubljana, Faculty of Computer and Information Science, Lesar Žiga , Marolt Matija ,   University of Ljubljana, Faculty of Computer and Information Science,   University of Ljubljana, Faculty of Computer and Information Science
Published: July 2024

In this paper, we aim to improve rendering reflections using environment maps on moving reflective objects. Such scenarios require multiple reflection probes to be positioned at various locations in a scene. During rendering, the closest reflection probe is typically chosen as the environment map of a specific object, resulting in sharp transitions between the rendered reflections when the object moves around the scene. To solve this problem, we developed two convolutional neural networks that dynamically synthesize the best possible environment map at a given point in the scene. The first network generates an environment map from the coordinates of a given point through a decoder architecture. In the second approach, we triangulated the scene and captured environment maps at the triangle vertices - these represent reflection probes. The second network receives at the input three environment maps captured at the vertices of the triangle containing the query point, along with the distances between the query point and the vertices. Through an encoder-decoder architecture, the second network performs smart interpolation of the three environment maps. Both approaches are based on the phenomenon of overfitting, which made it necessary to train each network individually for specific scenes. Both networks are successful at predicting environment maps at arbitrary locations in the scene, even if these locations were not part of the training set. The accuracy of the predictions strongly depends on the complexity of the scene itself.
Exploitation of local adjacencies for parallel construction of a Reeb graph variant: cerebral vascular tree case
Authors: LEPAIRE Charles ,   University of Poitiers CNRS, XLIM, BELHAOUARI Hakim , PASCUAL Romain , MESEURE Philippe ,   University of Poitiers CNRS, XLIM,   Karlsruhe Institute of Technology,   University of Poitiers, CNRS, XLIM
Published: July 2024

Strokes concerned more than 795,000 individuals annually in the United States as of 2021. Detecting thrombus (blood clot) is crucial for aiding surgeons in diagnosis, a process heavily reliant on 3D models reconstructed from medical imaging. While these models are very dense with information (many vertices, edges, faces in the mesh, and noise), extracting the critical data is essential to produce an accurate analysis to support the work of practitioners. Our research, conducted in collaboration with a consortium of surgeons, leverages generalized maps (g-maps) to compute quality criteria on the cerebral vascular tree. According to medical professionals, artifacts due to noise and thin topological changes are significant parameters among these criteria. These parameters can be determined via the Reeb graph, a topological descriptor commonly used in topological data analysis (TDA). In this article, we introduce a novel classification of saddle points, and a Reeb graph variant called the Local to Global Reeb graph (LGRG). We present parallel computation methods for critical points and LGRG, relying only on local information thanks to the homogeneity of the g-map formalism. We show that LGRG preserves the most subtle topological changes while simplifying the input into a graph formalism that respects the global structure of the mesh, allowing its use in future analyses.
Identidades sociolingüísticas y reapropiación: análisis sociocultural de maricón y bollera en un corpus de Twitter
Authors: Engra Minaya Sara
Published: July 2024

Los estudios lingüísticos sobre el habla de las personas queer son un ámbito de investigación emergente en el mundo hispánico, aunque internacionalmente se trate de una disciplina más establecida (Levon y Mendes, 2016). En esta investigación, se busca examinar algunos aspectos lingüísticos del habla de las personas queer y cisheterosexuales online en un corpus de 300 tweets diseñado ad hoc, generado a partir de búsquedas de los términos maricón y bollera en Twitter. Basándonos en trabajos previos (Navarro-Carrascosa, 2021), nos hemos interesado por rasgos lingüísticos propuestos para la comunidad LGTBI+, como la resignificación de términos ofensivos, las prácticas de translenguaje con el inglés (Leap, 2020) y el empleo de tacos. Al mismo tiempo, se han considerado la alineación o el distanciamiento que los participantes queer y cisheterosexuales con su grupo de referencia y qué tácticas de autenticación o desnaturalización de identidades (Bucholtz y Hall, 2005) emplean los usuarios de estos términos para su trabajo identitario. Los resultados muestran que los usuarios de maricón y bollera construyen identidades sociolingüísticas distintas con rasgos lingüísticos endogrupales dependiendo de su afiliación hacia el colectivo LGTB+.
Lo de «ahí abajo»: arte feminista, autoconocimiento y representaciones vúlvicas en los setenta
Authors: Espinosa Saray
Published: July 2024

Este artículo propone una aproximación a la iconología vúlvica o arte coño, que se popularizaró en el arte feminista durante la década de los años setenta. En contra la tendencia de reducirlas a una lectura esencialista, las analizaremos en relación con su contexto político, filosófico y militante más inmediato. Así, exploraremos la relación de estas prácticas artísticas con la formulación del sexo femenino como «el horror del nada que ver», según Luce Irigaray (1977), o el movimiento self-help, también conocido como autoconocimiento y autogestión de la sexualidad.
Confianza en la prensa mexicana
Authors: González Rubén Arnoldo , Salazar Rebolledo Grisel
Published: July 2024

Para contribuir a un mejor entendimiento de la confianza en la prensa mexicana, en este trabajo se estudia la percepción que los/as periodistas que trabajan en entornos de riesgo tienen de sus audiencias, en particular, y de la ciudadanía, en general. A partir del análisis de 93 entrevistas semiestructuradas con periodistas de 23 estados de México, y de una base original de 1.217 titulares de los dos principales diarios de cada Estado, se observa que si bien el vínculo con la audiencia es débil, al especificar la relación entre los grupos organizados se percibe una mayor confianza entre ambos actores lo que fortalece las redes de colaboración y de alianza.
O PAPEL DO ERRO NA CIÊNCIA POPPERIANA
Authors: LOURENÇO Wânia Maria
Published: July 2024

Este artigo pretende mostrar que a visão popperiana da ciência resgata o papel do erro que, em última instância, é responsável pela criação de novas conjecturas. O reÍutacionismo surge contra a perspectiva justifrcacionista do conhecimento, onde o principio da verifrcabilidade deixa de vigorar.
Breast cancer recurrence and tumor size: A bibliometric analysis
Authors: Ramadan Heba
Published: July 2024

Background

Breast cancer (BC) is the most common malignancy diagnosed in females. Over the years, many factors have been studied to understand what causes BC to come back. One of them is the tumor size at the beginning of the treatment. Tumor size is an interesting parameter, and some classifications of cancer grade depend on it.

Methods

This bibliometric analysis examined the pattern followed by publications on BC recurrence and tumor size. The Scopus database was used, and bibliometric analysis was utilized to identify the most prolific authors, the journals most involved in the field, and the countries, institutions, and keywords used. BC recurrence and tumor size have an exponential growth in the number of publications over the years.

Results

For the last 11 years, from 2012 to 2022, the trend of annual publications concerning BC recurrence and tumor size increased dramatically, showing that the majority of publications were published in the United States (452 articles) by Morrow, M., who authored 13 articles; The University of Texas, Anderson Cancer Center had the most published articles (48 articles); and Breast Cancer Research and Treatment journal achieved the largest quantity of published articles (112 articles).

Conclusion

Tumor size is an important risk factor for BC recurrence, and this bibliometric analysis focused on the high interest introduced by the research community.
Small-strain stiffness of selected anthropogenic aggregates from bender element tests
Authors: Gabryś Katarzyna , Markowska-Lech Katarzyna , Sas Wojciech
Published: July 2024

This article presents a study on the stiffness of mixtures of anthropogenic materials derived from construction or demolition waste, specifically fine recycled concrete aggregates (fRCAs) with different fine fraction (FF) contents. The study investigated small-strain shear moduli via various signal interpretation methods, examining, above all, the time domain approaches and considering the influence of FF content. However, the inconclusive results from the bender element (BE) tests highlight the complexity of factors affecting shear wave velocity, which requires further research to refine the methodology and assess long-term performance in geotechnical applications.

Selecting the correct test frequency and interpretation method is crucial to obtain accurate results. The BE test method should consider all relevant factors. At low input frequencies (≤5 kHz), the near-field effect affected the received signal for fRCA mixtures. At higher frequencies (around 14 kHz), the noise levels increased, thereby interfering with the S-wave travel time determination. Intermediate input frequencies (10.0 and 12.5 kHz) provided the representative shear modulus (G) values. The small-strain shear modulus (G
max) of the fRCA compounds from the resonant column and BE tests was found to be in good agreement, despite differences in the test procedures themselves.
Prevalence and structure of calls from the Moscow emergency medical team to children with stroke
Authors: Khachaturov Yu. А. , Plavunov N. F. , Sidorov A. M. , Kadyshev V. A. , Vlasov P. N.
Published: July 2024

In recent years, the number of diagnosed cases of stroke in children and adolescents has significantly increased. Purpose: to study the prevalence and structure of calls from emergency medical teams (EMS) to children and adolescents with a preliminary diagnosis of stroke, taking into account age, gender and seasonality in Moscow. Objectives: to analyse calls from emergency medical services teams in Moscow to children and adolescents, to study the prevalence of childhood stroke. To establish the structure of childhood strokes and the most common types of stroke. To track the dynamics of average monthly indicators of EMS calls to pediatric patients with a preliminary diagnosis of stroke and to clarify the patterns specific to the prevalence of calls to EMS teams during the year. Materials and methods: there was carried out an analysis of the prevalence and structure of calls from emergency medical teams to patients with a preliminary diagnosis of acute cerebrovascular accident among the child population of Moscow. The distribution of cases of acute cerebrovascular accident was analysed depending on the gender and age of the child, and types of stroke. Results of the study: Age, gender and seasonal characteristics, prevalence and structure of nosological forms and types of stroke were identified. It was found that stroke is more common in children aged 7 to 15 years — 1 453 cases (57%). In 73.5% of cases, the visiting medical staff of the EMS diagnosed a transient ischemic attack, in 19.3% — a stroke not specified as a cerebral hemorrhage or infarction, in 4.4% — a subarachnoid hemorrhage, in 1.7% — a hemorrhagic stroke, and in 1.1% — cerebral infarction. An increase in the number of calls is observed from September to April (77.8% of all calls from emergency medical services teams).
A Black Ear in A HIV Patient
Authors: Félix Camila , Basantes Augusta , Cáceres Paola , Hidalgo Andrea , Cueva Andrea , Palacios Santiago , Lascano Nathalie
Published: July 2024

Cutaneous adverse drug reactions (CADR) can present multiple morphologies and differential diagnoses. As HIV, patients are on multiple drugs CADR should always be suspected when new skin rashes appear. Here we discuss the diagnostic process of a CADR secondary to antiretroviral therapy in a male patient with HIV.
Modeling techno-economic multi-objectives of smart homes considering energy optimization and demand management
Authors: Khan Mohammad Ahmar , Kareem A. K. , Askar Shavan , Abduvalieva Dilsora , R. Roopashree , Prasad K. D. V , Sharma Aanchal , Sharma Abhishek , Ghazaly Nouby M. , Mohmmedi M.
Published: July 2024

The research suggests an approach that prioritizes customer needs and aims to reduce energy expenses while safeguarding customer privacy. Furthermore, it is recommended that smart homes incorporate a home energy management system to optimize appliance energy consumption. Conversely, the introduction of demand-side management addresses the energy management challenges faced by smart households. The main goal of this approach is to decrease energy usage and electricity costs for customers. Moreover, it enhances user satisfaction while waiting at common intervals. The primary emphasis of this study is on a smart residence furnished with energy management technology and smart home gadgets capable of supplying electricity to the grid. These objectives are considered distinct aspects in the multi-objective optimization issue stemming from this approach. The study utilizes the grasshopper optimization algorithm (GOA) to optimize battery and home appliance scheduling in smart homes with flexible devices. The goal is to reduce the overall cost of microgrid systems through demand-side management implementation. This comparison highlights the superiority of the proposed method in optimizing energy consumption and reducing carbon emissions in a variety of scenarios. By achieving lower energy costs and carbon emissions while maintaining a comfortable indoor environment, the proposed method proves to be a highly effective and sustainable solution for energy management in buildings. These simulation results provide strong evidence of the method’s potential to significantly impact energy efficiency and environmental sustainability in real-world applications. Furthermore, the consistent minimization of the discomfort index showcases the method’s ability to prioritize occupant comfort while still achieving significant energy savings and emissions reductions. Overall, the comparison with other algorithms solidifies the effectiveness and practicality of the proposed method in addressing the complex challenges of energy management and sustainability in smart homes.
“Literature is an Industrial World”. Book Review: Vdovin A. V., Zubkov K. Yu. (comp. and resp. eds.). Institutes of Literature in the Russian Empire. Moscow, Higher School of Economics Press, 2023, 496 p.
Authors: Kozlov A. E.
Published: July 2024

The review is devoted to the collective monograph “Institutes of Literature in the Russian Empire” (2023). The book, written by researchers from the National Research University Higher School of Economics, IRLI RAS and Lomonosov Moscow State University, presents various methods and approaches for analysing the literary field of the 18th and 19th centuries as an institution. By synthesising the concepts of Russian formalists, semioticians and the classics of Russian literary sociology with the ideas of Pierre Bourdieu and Jurgen Habermas, the authors demonstrate the differentiation of the social field of literature.

In spite of the unity of method and approach, as described in the preface by the authors and scientific editors Kirill Zubkov and Alexey Vdovin, the language of the researchers' descriptions and the chosen perspective remain individual, which gives a clear idea of the diversity of the objects and subjects of research. At the same time, the plurality of points of view makes the book readable as a “project for the future”, allowing us to speak of the creation of a fundamental work on the classification of the main institutions of literature in nineteenth-century Russia. The review also points out methodological problems that arise in translating Bourdieu’s concept into the language of analysing social and literary institutions.
Let’s review the intermaxillary elastics in orthodontics
Authors: Tarannum Ghazia , Shaw Tania , Tandon Ragni
Published: July 2024

Elastics play an important role in orthodontic treatment by exerting forces on the teeth and jaws to achieve proper alignment and correct malalignment. These are commonly used in combination with braces and/or with other orthodontic appliances to help move the teeth into their desired positions. The use of elastics is believed to arise from many years ago for different purposes in orthodontics. Intraoral elastics can be classified into sagittal, transverse, and vertical planes, and according to force delivery, elastics can be high pull, medium pull, and heavy pull. Like every dental material, elastic also has some delusion, side effects, and force decay properties with respect to time. Clinically, it is important to have an appropriate knowledge of the desired positive effects and the possible adverse effects that are normally associated with the use of elastic mechanics by orthodontists.
The accuracy of intraoperative O-arm imaging in assessing thoracolumbar pedicle screws placement
Authors: Aguilar-Chavez Felipe , Arellanes Chavez Carlos A. , Martinez Tapia Maria E. , Martinez-Loya Carolina , Gaytan Medina Cesar M.
Published: July 2024

Objectives:

Pedicle screw fixation in spine surgery is often considered the gold standard due to its biomechanical advantages. Complications such as screw misplacement may arise during the procedure, leading to severe consequences. Intraoperative 2D/3D imaging system images or a post-operative computed tomography (CT) scan are employed to assess this. This study aimed to determine the agreement between these two imaging systems to evaluate the placement of transpedicular screws using the Zdichavsky classification.

Methods:

Image data from the intraoperative 2D/3D imaging system and CT scans of patients undergoing spine surgery at the neurosurgery department were collected from March 2021 to May 2022. The position of transpedicular screws was evaluated using the Zdichavsky classification.

Results:

Images from 19 patients, 7 males (36.84%) and 12 females (63.16%), aged 28–77 years, were gathered. A total of 131 transpedicular screws were evaluated, ranging from 4 to 10 screws per patient. In the post-operative CT scan, 123 screws were classified as type Ia (93.89%), seven screws as type Ib (5.34%), and one screw as type IIb (0.76%). With the navigation system, 125 screws were classified as type Ia (95.42%), five as type Ib (3.82%), and one screw as type IIb (0.76%).

Conclusion:

It was demonstrated that intraoperative 2D/3D system images can be used to assess screw placement without the need for post-operative studies such as CT scans.
The effectiveness of angiogenesis inhibitor drugs in the treatment of patients with age-related macular degeneration
Authors: Zharylkassyn M.Z. ,   Karaganda Medical University, Karaganda, Bogenbayeva D.A. , Jumabayeva N.S. ,   Karaganda Medical University, Karaganda,   Karaganda Medical University, Karaganda
Published: July 2024

Background.According to epidemiological studies, age-related macular degeneration (AMD) occupies a leading position among the causes of blindness and decreased visual acuity in the elderly. In recent decades, the latest methods of treatment of age-related macular degeneration have been developed. Scientists synthesized, and clinicians began to use drugs that suppress the production of endothelial vascular growth factor (VEGF), that is, in fact, they are antiangiogens. Despite the fact that the exact cause of the formation of the subretinal neovascular membrane in AMD has not been established, most scientists believe that VEGF plays a leading role in its formation. That is why the use of VEGF inhibitors is a very promising method of preventing the formation of newly formed vessels. Purpose. To evaluate the efficacy of angiogenesis inhibitors in the treatment of AMD. Material and methods. Outpatient charts of 40 patients (68 eyes) aged 60 to 85 years with the diagnosis of exudative form of AMD on the basis of one of the ophthalmologic clinics of Karaganda city for the period from 2019 to 2023 served as materials for the study. Results.The totality of the above examination results allows us to conclude that after angiogenesis inhibitor therapy, there was an improvement in the form of a decrease in retinal thickness in the area of edema, as well as a relative increase in visual acuity and the patient’s condition. Conclusion.The use of angiogenesis inhibitors has a positive effect on macular degeneration in terms of inhibition of neovascularization processes, as well as reduction of the existing macular edema and improvement of patients’ condition by increasing the visual ability of patients. Its global use is well justified, because when considering different scientific articles and analyzing patient reports even in one clinic, it can be concluded that this treatment method is very effective. Keywords:angiogenesis inhibitors, macular diseases, age-related macular degeneration
Recombinant prourokinase in the treatment of postoperative endophthalmitis
Authors: Petrachkov D.V. ,   Krasnov Research Institute of Eye Diseases, Ministry of Health of the Russian Federation, Moscow, Korobov E.N. ,   Krasnov Research Institute of Eye Diseases, Ministry of Health of the Russian Federation, Moscow
Published: July 2024

Purpose. To determine the effectiveness of prourokinase in the treatment of acute postoperative endophthalmitis. Material and methods. The study included 5 patients with acute endophthalmitis after cataract surgery. Symptoms of endophthalmitis appeared on the 3rd day after surgery in 3 patients, on the 4th in 2 patients. All patients underwent vitrectomy on the day of presentation without inducing posterior detachment of the hyaloid membrane with intravitreal administration of a combination of antibiotic and prourokinase at the end of the operation. Results.On the first day after surgery, all patients had severe inflammatory manifestations, which completely disappeared by day 7. Maximum corrected visual acuity after 1 month was: 0.7 in 1 patient, 0.8 in 1 patient, 1.0 in 3 patients. Conclusion.The use of recombinant prourokinase in combination with intravitreal antibiotics and vitrectomy demonstrated high functional results without complications in the early postoperative period. Keywords: vitreoretinal surgery, vitrectomy, endophthalmitis, fibrinoid syndrome, postoperative inflammation, enzyme therapy, recombinant prourokinase
Prevention and treatment of keratolysis in urgent surgery (preliminary clinical study)
Authors: Sirotkina K.V. ,   Helmholtz National Medical Research Center of Eye Diseases, Moscow, Chentsova E.V. , Borovkova N.V. , Ponomarev I.N. , Makarov M.S. , Storozheva M.V. , Tselaya T.V. ,   Helmholtz National Medical Research Center of Eye Diseases, Moscow,   N.V. Sklifosovsky Research Institute for Emergency Medicine, Moscow,   Pirogov Russian National Research Medical University (RNRMU), Moscow,   N.V. Sklifosovsky Research Institute for Emergency Medicine, Moscow,   N.V. Sklifosovsky Research Institute for Emergency Medicine, Moscow,   N.V. Sklifosovsky Research Institute for Emergency Medicine, Moscow,   Helmholtz National Medical Research Center of Eye Diseases, Moscow
Published: July 2024

Purpose. To estimate the effectiveness of using of platelet-rich plasma lysate (PRP lysate) for prevention and treatment keratolysis in patients after urgent keratoplasty. Material and methods. To compare the effectiveness of treatment with PRP lysate after urgent keratoplasty we formed the comparison group and the study group (20 people in total). Each group included 10 patients: 5 with corneal perforation and 5 with graft lysis. After urgent keratoplasty all patients received standard treatment. 10 patients from the study group received platelet-rich plasma lysate in subconjunctival injections and instillations. The assessment of the condition of the cornea was carried out using clinical and instrumental studies, including visometry, biomicroscopy with fluorescein staining, photoregistration and OCT on the Heidelberg Engineering “OCT Spectralis” apparatus. Results.Treatment with PRP lysate in all patients of the study group led to 100 % epithelization of the graft up to 7 days after surgery. The average area of graft epithelization on day 7 was 55,9 ± 12,9 % in patients before the first keratoplasty, and 38,22 ± 14,5 % in patients after rekeratoplasty (p < 0,01 compared with the study group. In all patients of the study group, the graft was preserved. In the comparison group, 70 % of patients had keratolysis in the long term after surgery. Conclusions. The use of PRP lysate after urgent keratoplasty may be a promising method for preventing and treating keratolysis. Keywords: keratoplasty, matrix metalloproteinases, tissue inhibitor of matrix metalloproteinases, platelet-rich plasma
Terminals syndrome – veno-occlusive complications of the postoperative period in proliferative diabetic retinopathy
Authors: Filippov V.M. ,   Krasnov Research Institute of Eye Diseases, Ministry of Health of the Russian Federation, Moscow, Petrachkov D.V. ,   Krasnov Research Institute of Eye Diseases, Ministry of Health of the Russian Federation, Moscow
Published: July 2024

Background.Complications of diabetic retinopathy (DR), such as vitreous haemorrhage and tractional retinal detachment, are indications for vitreoretinal surgical treatment. An urgent problem is the identification of instrumental and clinical changes and signs that may reflect the risks of developing postoperative complications and the need for additional treatment. Purpose. To demonstrate in a series of clinical cases a symptom complex of changes (“terminal syndrome”) in proliferative DR, which is a potential predictor of haemorrhagic and proliferative changes in the postoperative period. Material and methods. Six clinical cases are presented in which the presence of “terminals syndrome” in patients was determined – a combination of the inner retinal layers edema (according to OCT) and the presence of epiretinal proliferative tissues dense fixation zones in the area of the temporal vascular arcades distal branches. Patients underwent three-port vitrectomy with membrane peeling, diathermocoagulation of bleeding vessels and residual proliferative membrane fragments. The follow-up period was up to 12 months. Results. Up to 3 months from the surgery- four patients, and by 6 months – all patients showed signs of retinal venous occlusion of the temporal vascular arcades distal branches caused by changes in the residual fragment of the epiretinal membrane. Simultaneously, the development of rubeosis iridis was observed in five cases, macular edema in two cases, and vitreous haemorrhage requiring revision surgery in two cases. Conclusion.“Terminals syndrome” signs at the preoperative stage or intraoperatively is a risk factor in the development of retinal venous occlusion and requires measures to prevent both its development and subsequent complications. Keywords: proliferative diabetic retinopathy, vitreoretinalal surgery, retinal vein occlusion, “terminals syndrome”
Investigation of regional hemodynamics and structural and functional changes in the macular region in patients with intermediate stage of dry AMD against the background of the use of double filtration plasmapheresis
Authors: Volozhev A.A. ,   S.M. Kirov Military Medical Academy of the Russian Defense Ministry, Saint Petersburg, Kulikov A.N. , Belskih A.N. , Alyabev M.V. ,   S.M. Kirov Military Medical Academy of the Russian Defense Ministry, Saint Petersburg,   S.M. Kirov Military Medical Academy of the Russian Defense Ministry, Saint Petersburg,   S.M. Kirov Military Medical Academy of the Russian Defense Ministry, Saint Petersburg
Published: July 2024

Purpose. To study the indicators of regional hemodynamics, as well as the dynamics of structural and functional parameters of the macular zone in patients with a dry form of agerelated macular degeneration (dAMD ) before and after the use of double filtration plasmapheresis (DFPP). Material and methods. The study included 34 patients (52 eyes) with intermediate stage dAMD. The patients underwent DFPP on an OctoNova device using a Plasmaflo plasma filter and a Cascadeflo EC40 fractionator. The course included 4 procedures with a frequency of 1 time per week. In the period before the DFPP course, after the DFPP course (1 month after the start of follow-up), after 6 and 12 months, a comprehensive ophthalmological examination and ultrasound examination were performed to assess the blood flow rate in the posterior short ciliary arteries. For a reliable interpretation of the results of the study, the age norm was set: 20 patients (20 eyes), comparable in gender and age. Results. The study revealed positive dynamics of structural and functional parameters of the macular retina and improvement of microcirculation parameters against the background of the use of DFPP of patients with dAMD. At the same time, a statistically significant difference begins at 1 month and persists for 12 months of follow-up, which indicates stabilization of the pathological process. Conclusion.DFPP has a positive effect on the course of dAMD, but the effect may weaken over time. However, there is a possibility of regular repetition of the course. Keywords: treatment of the dry age-related macular degeneration, regional hemodynamics, druses, double filtration plasmapheresis